/* roulang page: index */
:root {
  --primary: #005b55;
  --primary-dark: #00443f;
  --primary-light: #e5f2f0;
  --accent: #e07b39;
  --accent-dark: #c7642a;
  --text: #1f2d31;
  --text-muted: #5f6f75;
  --border: #e1e8ea;
  --bg-soft: #f7f9f8;
  --white: #ffffff;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 28px;
  --shadow-sm: 0 4px 14px rgba(0, 0, 0, .05);
  --shadow-md: 0 12px 32px rgba(0, 0, 0, .08);
  --shadow-lg: 0 24px 50px rgba(0, 0, 0, .12);
  --transition: all .3s cubic-bezier(.4, 0, .2, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
}

body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  background: var(--white);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

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

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

.btn {
  border-radius: 999px;
  padding: 12px 28px;
  font-weight: 600;
  transition: var(--transition);
}

.btn-lg {
  padding: 14px 34px;
  font-size: 1.05rem;
}

.btn-accent {
  background: var(--accent);
  border: 1px solid var(--accent);
  color: #fff;
}

.btn-accent:hover,
.btn-accent:focus {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(224, 123, 57, .2);
}

.btn-outline-light {
  border-color: rgba(255, 255, 255, .7);
  color: #fff;
}

.btn-outline-light:hover,
.btn-outline-light:focus {
  background: #fff;
  color: var(--primary);
  border-color: #fff;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1050;
  background: rgba(255, 255, 255, .86);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.navbar {
  padding: 18px 0;
}

.navbar-brand {
  font-size: 1.55rem;
  font-weight: 800;
  letter-spacing: .5px;
  color: var(--primary);
}

.navbar-brand:hover {
  color: var(--primary-dark);
}

.navbar-nav {
  column-gap: 6px;
}

.nav-link {
  font-weight: 500;
  color: var(--text) !important;
  padding: 8px 14px !important;
  border-radius: 999px;
  position: relative;
}

.nav-link:hover,
.nav-link:focus {
  color: var(--primary) !important;
  background: var(--primary-light);
}

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

.navbar-toggler {
  border: none;
  padding: 8px 10px;
  border-radius: 10px;
}

.navbar-toggler:focus {
  box-shadow: none;
  border: 1px solid var(--primary-light);
}

.hero {
  position: relative;
  min-height: 720px;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  z-index: 0;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0, 50, 45, .55) 0%, rgba(0, 30, 28, .72) 100%);
  z-index: 1;
}

.hero .container {
  position: relative;
  z-index: 2;
  color: #fff;
  max-width: 940px;
  text-align: center;
}

.hero-badge {
  display: inline-block;
  background: rgba(255, 255, 255, .16);
  border: 1px solid rgba(255, 255, 255, .35);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  padding: 8px 20px;
  border-radius: 999px;
  font-size: .9rem;
  letter-spacing: 1px;
  margin-bottom: 28px;
}

.hero h1 {
  font-size: 4rem;
  font-weight: 800;
  letter-spacing: 4px;
  line-height: 1.2;
  margin-bottom: 20px;
}

.hero-lead {
  font-size: 1.25rem;
  max-width: 680px;
  margin: 0 auto 36px;
  color: rgba(255, 255, 255, .9);
}

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

.section {
  padding: 100px 0;
}

.section-heading {
  max-width: 720px;
  margin: 0 auto 60px;
  text-align: center;
}

.section-tag {
  display: inline-block;
  padding: 7px 18px;
  border-radius: 999px;
  background: rgba(0, 123, 115, .1);
  color: var(--primary);
  font-weight: 700;
  letter-spacing: 1px;
  font-size: .85rem;
}

.section-heading h2 {
  font-size: 2.3rem;
  font-weight: 800;
  margin: 18px 0 12px;
  color: var(--text);
}

.section-heading p {
  color: var(--text-muted);
  font-size: 1.1rem;
  margin-bottom: 0;
}

.section-features .feature-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  height: 100%;
}

.section-features .feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(0, 123, 115, .2);
}

.feature-icon {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 18px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 1.6rem;
  margin-bottom: 22px;
}

.feature-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.feature-card p {
  color: var(--text-muted);
  margin-bottom: 0;
}

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

.category-card {
  position: relative;
  display: block;
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 400px;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  color: #fff;
}

.category-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  color: #fff;
}

.category-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .6s ease;
}

.category-card:hover img {
  transform: scale(1.05);
}

.category-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0) 30%, rgba(0, 0, 0, .8) 100%);
}

.category-card-body {
  position: absolute;
  left: 0;
  bottom: 0;
  z-index: 2;
  padding: 40px 32px;
}

.category-card-body .btn {
  border-color: #fff;
  color: #fff;
  padding: 6px 18px;
  border-radius: 999px;
  margin-bottom: 16px;
  font-weight: 600;
}

.category-card-body .btn:hover {
  background: #fff;
  color: var(--primary);
}

.category-card-body h3 {
  font-size: 1.9rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.category-card-body p {
  color: rgba(255, 255, 255, .85);
  max-width: 420px;
  margin-bottom: 0;
}

.section-news .news-list {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.news-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 26px 30px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.news-item:hover {
  border-color: rgba(0, 123, 115, .25);
  box-shadow: var(--shadow-sm);
}

.news-cat {
  display: inline-block;
  background: rgba(0, 123, 115, .1);
  color: var(--primary);
  border-radius: 999px;
  padding: 4px 12px;
  font-size: .8rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.news-item h3 {
  font-size: 1.25rem;
  margin-bottom: 4px;
}

.news-item h3 a {
  color: var(--text);
}

.news-item h3 a:hover {
  color: var(--primary);
}

.news-item p {
  color: var(--text-muted);
  margin-bottom: 0;
}

.news-time {
  color: var(--text-muted);
  white-space: nowrap;
  font-size: .9rem;
}

.news-empty {
  text-align: center;
  padding: 60px 20px;
  background: var(--bg-soft);
  border-radius: var(--radius-lg);
  color: var(--text-muted);
  font-size: 1.1rem;
}

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

.step-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  height: 100%;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

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

.step-num {
  font-size: 1rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: 2px;
}

.step-card h3 {
  font-size: 1.45rem;
  font-weight: 700;
  margin: 14px 0 10px;
}

.step-card p {
  color: var(--text-muted);
  margin-bottom: 0;
}

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

.faq-accordion {
  max-width: 880px;
  margin: 0 auto;
}

.accordion-item {
  border: 1px solid var(--border) !important;
  border-radius: var(--radius-md) !important;
  overflow: hidden;
  margin-bottom: 14px;
  box-shadow: var(--shadow-sm);
  background: #fff;
}

.accordion-button {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
  padding: 22px 28px;
  background: #fff;
  box-shadow: none !important;
}

.accordion-button:not(.collapsed) {
  color: var(--primary);
  background: var(--primary-light);
}

.accordion-button:focus {
  box-shadow: none !important;
}

.accordion-button::after {
  background-size: 1rem;
}

.accordion-body {
  padding: 6px 28px 24px;
  color: var(--text-muted);
}

.section-cta {
  position: relative;
  padding: 100px 0;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  overflow: hidden;
}

.section-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0, 60, 55, .82);
}

.cta-inner {
  position: relative;
  z-index: 2;
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
  color: #fff;
}

.cta-inner h2 {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 14px;
}

.cta-inner p {
  color: rgba(255, 255, 255, .85);
  font-size: 1.15rem;
  margin-bottom: 32px;
}

.site-footer {
  background: #0d1f1e;
  color: rgba(255, 255, 255, .7);
  padding: 70px 0 0;
}

.footer-brand {
  font-size: 1.6rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: .5px;
  margin-bottom: 16px;
}

.site-footer p {
  color: rgba(255, 255, 255, .65);
}

.site-footer h4 {
  color: #fff;
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 18px;
}

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

.site-footer ul li {
  margin-bottom: 12px;
}

.site-footer a {
  color: rgba(255, 255, 255, .7);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .12);
  margin-top: 48px;
  padding: 24px 0;
  text-align: center;
  font-size: .9rem;
  color: rgba(255, 255, 255, .5);
}

.footer-bottom a {
  color: rgba(255, 255, 255, .6);
}

@media (max-width: 991.98px) {
  .navbar-collapse {
    background: #fff;
    border-radius: 18px;
    padding: 16px 20px;
    margin-top: 14px;
    box-shadow: var(--shadow-md);
  }

  .navbar-nav {
    gap: 6px;
  }

  .hero {
    min-height: 620px;
  }

  .hero h1 {
    font-size: 3rem;
  }

  .category-card {
    height: 360px;
  }
}

@media (max-width: 767.98px) {
  .section {
    padding: 72px 0;
  }

  .section-heading h2 {
    font-size: 1.9rem;
  }

  .hero {
    min-height: 540px;
  }

  .hero h1 {
    font-size: 2.4rem;
    letter-spacing: 2px;
  }

  .hero-lead {
    font-size: 1.05rem;
  }

  .news-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .news-time {
    white-space: normal;
  }

  .category-card {
    height: 320px;
  }
}

@media (max-width: 575.98px) {
  .section {
    padding: 60px 0;
  }

  .hero h1 {
    font-size: 2rem;
  }

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

  .news-item {
    padding: 22px;
  }

  .category-card {
    height: 280px;
  }

  .category-card-body h3 {
    font-size: 1.5rem;
  }

  .cta-inner h2 {
    font-size: 1.7rem;
  }
}

/* roulang page: article */
:root {
  --primary: #c8a04b;
  --primary-dark: #a9842f;
  --primary-light: #f0e3c8;
  --deep: #1a1a2e;
  --deep-soft: #252540;
  --bg: #f7f5f0;
  --white: #ffffff;
  --text: #1f2430;
  --text-muted: #6b7280;
  --border: #e8e4dc;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 12px 36px rgba(0, 0, 0, 0.07);
  --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.11);
  --transition: all 0.3s ease;
  --font-base: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-base);
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

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

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

.container {
  max-width: 1200px;
  padding-left: 20px;
  padding-right: 20px;
}

/* ===== 导航 ===== */
.site-header {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 1050;
}

.site-header .navbar {
  padding-top: 14px;
  padding-bottom: 14px;
}

.navbar-brand {
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--deep);
  transition: var(--transition);
}

.navbar-brand:hover {
  color: var(--primary-dark);
}

.navbar-light .navbar-brand {
  color: var(--deep);
}

.navbar-light .navbar-brand:hover {
  color: var(--primary-dark);
}

.site-header .nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text);
  margin: 0 6px;
  padding: 8px 14px;
  border-radius: 30px;
  transition: var(--transition);
  position: relative;
}

.site-header .nav-link::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: var(--transition);
}

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

.site-header .nav-link:hover::after,
.site-header .nav-link.active::after {
  width: 22px;
}

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

.navbar-toggler {
  border: none;
  padding: 6px 10px;
}

.navbar-toggler:focus {
  box-shadow: none;
  outline: 2px solid var(--primary-light);
  border-radius: 8px;
}

.btn-accent {
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 30px;
  padding: 9px 22px;
  font-weight: 600;
  font-size: 0.92rem;
  transition: var(--transition);
  box-shadow: 0 4px 14px rgba(200, 160, 75, 0.28);
}

.btn-accent:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(200, 160, 75, 0.35);
}

.btn-accent:focus {
  box-shadow: 0 0 0 4px var(--primary-light);
  outline: none;
}

/* ===== 按钮通用 ===== */
.btn-primary {
  background: var(--primary);
  border: none;
  border-radius: 30px;
  padding: 10px 28px;
  font-weight: 600;
  transition: var(--transition);
  color: #fff;
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(200, 160, 75, 0.3);
  color: #fff;
}

.btn-outline-light {
  border: 1.5px solid rgba(255, 255, 255, 0.75);
  border-radius: 30px;
  color: #fff;
  padding: 8px 22px;
  font-weight: 500;
  transition: var(--transition);
}

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

.btn-outline-primary {
  border: 1.5px solid var(--primary);
  color: var(--primary-dark);
  border-radius: 30px;
  padding: 9px 24px;
  font-weight: 600;
  transition: var(--transition);
}

.btn-outline-primary:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(200, 160, 75, 0.25);
}

/* ===== 文章 Banner ===== */
.article-banner {
  position: relative;
  background-size: cover;
  background-position: center;
  padding: 96px 0 84px;
  color: #fff;
  overflow: hidden;
}

.article-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(26, 26, 46, 0.94), rgba(30, 30, 60, 0.68));
  z-index: 1;
}

.article-banner::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), transparent 70%);
  z-index: 2;
}

.article-banner .container {
  position: relative;
  z-index: 3;
}

.breadcrumb-nav {
  font-size: 0.9rem;
  margin-bottom: 20px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  opacity: 0.85;
}

.breadcrumb-nav a {
  transition: var(--transition);
  color: rgba(255, 255, 255, 0.85);
}

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

.breadcrumb-nav .separator {
  color: rgba(255, 255, 255, 0.4);
  margin: 0 2px;
}

.breadcrumb-nav .current {
  color: var(--primary);
  font-weight: 500;
}

.article-banner h1 {
  font-size: clamp(1.6rem, 3.4vw, 2.6rem);
  font-weight: 700;
  letter-spacing: 0.01em;
  max-width: 860px;
  margin-bottom: 22px;
  line-height: 1.35;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.78);
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
  max-width: 860px;
}

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

.article-meta i {
  color: var(--primary);
}

/* ===== 文章主体区 ===== */
.article-section {
  padding: 70px 0 30px;
}

.article-layout {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 50px;
}

.article-main {
  min-width: 0;
}

.article-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 46px 48px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(232, 228, 220, 0.6);
}

.article-content {
  font-size: 1.02rem;
  line-height: 1.9;
  color: #374151;
}

.article-content h2 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--deep);
  margin: 36px 0 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.article-content h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--deep);
  margin: 28px 0 12px;
}

.article-content p {
  margin-bottom: 18px;
}

.article-content ul,
.article-content ol {
  padding-left: 22px;
  margin-bottom: 20px;
}

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

.article-content blockquote {
  border-left: 4px solid var(--primary);
  background: var(--primary-light);
  padding: 18px 24px;
  border-radius: 0 12px 12px 0;
  margin: 28px 0;
  color: #4a4538;
  font-style: italic;
}

.article-content img {
  border-radius: 14px;
  margin: 28px 0;
  box-shadow: var(--shadow);
}

.article-content a {
  color: var(--primary-dark);
  border-bottom: 1px solid rgba(200, 160, 75, 0.4);
  transition: var(--transition);
}

.article-content a:hover {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.article-content code {
  background: #f3f4f6;
  padding: 2px 8px;
  border-radius: 5px;
  font-size: 0.9em;
  color: var(--deep);
}

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

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

.article-content table th {
  background: var(--bg);
  font-weight: 600;
  color: var(--deep);
}

/* 内容未找到 */
.content-missing {
  text-align: center;
  padding: 80px 24px;
}

.content-missing .missing-icon {
  font-size: 4rem;
  color: var(--primary);
  margin-bottom: 22px;
}

.content-missing h2 {
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--deep);
  margin-bottom: 12px;
}

.content-missing p {
  color: var(--text-muted);
  margin-bottom: 28px;
}

/* 标签 */
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 34px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.tag {
  display: inline-flex;
  align-items: center;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 5px 16px;
  font-size: 0.82rem;
  color: var(--text-muted);
  transition: var(--transition);
  cursor: default;
}

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

/* 文章分隔 */
.article-divider {
  display: flex;
  align-items: center;
  gap: 16px;
  margin: 40px 0;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.article-divider::before,
.article-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* ===== 侧边栏 ===== */
.article-sidebar {
  display: flex;
  flex-direction: column;
  gap: 26px;
}

.sidebar-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(232, 228, 220, 0.5);
  transition: var(--transition);
}

.sidebar-card:hover {
  box-shadow: var(--shadow-lg);
}

.sidebar-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--deep);
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--primary-light);
  position: relative;
}

.sidebar-card h3::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 36px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

.sidebar-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.sidebar-links li {
  margin-bottom: 4px;
}

.sidebar-links a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text);
  transition: var(--transition);
}

.sidebar-links a i {
  color: var(--primary);
  font-size: 1.05rem;
  width: 20px;
  text-align: center;
}

.sidebar-links a:hover {
  background: var(--bg);
  color: var(--primary-dark);
  transform: translateX(4px);
}

.sidebar-cover {
  position: relative;
  overflow: hidden;
  padding: 0;
  background: var(--deep);
  border-radius: var(--radius);
}

.sidebar-cover img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  opacity: 0.55;
  transition: var(--transition);
}

.sidebar-cover:hover img {
  opacity: 0.4;
  transform: scale(1.04);
}

.sidebar-cover-body {
  padding: 22px 26px 26px;
}

.sidebar-cover-body h3 {
  color: #fff;
  border-bottom-color: rgba(255, 255, 255, 0.2);
  margin-bottom: 14px;
}

.sidebar-cover-body h3::after {
  background: var(--primary);
}

.sidebar-cover-body p {
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.9rem;
  margin-bottom: 18px;
}

/* ===== 相关阅读 ===== */
.related-section {
  padding: 64px 0;
}

.related-section .section-title-wrap {
  text-align: center;
  margin-bottom: 42px;
}

.related-section .section-eyebrow {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary-dark);
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: 20px;
  padding: 5px 16px;
  margin-bottom: 12px;
  letter-spacing: 0.06em;
}

.related-section .section-title {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--deep);
  margin-bottom: 10px;
}

.related-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid rgba(232, 228, 220, 0.5);
  transition: var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.related-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.related-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.related-card-body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.related-card-body h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--deep);
  line-height: 1.5;
  margin-bottom: 10px;
}

.related-card-body h3 a {
  transition: var(--transition);
}

.related-card-body h3 a:hover {
  color: var(--primary-dark);
}

.related-card-body p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 16px;
  flex: 1;
}

.related-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}

.related-card-footer .btn-link-icon {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--primary-dark);
  transition: var(--transition);
}

.related-card-footer .btn-link-icon:hover {
  gap: 10px;
  color: var(--primary);
}

.related-card-footer .text-sm {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ===== FAQ ===== */
.faq-section {
  padding: 70px 0;
  background: var(--white);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.faq-section .section-title-wrap {
  text-align: center;
  margin-bottom: 46px;
}

.faq-section .section-eyebrow {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary-dark);
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: 20px;
  padding: 5px 16px;
  margin-bottom: 12px;
  letter-spacing: 0.06em;
}

.faq-section .section-title {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--deep);
  margin-bottom: 10px;
}

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

.faq-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 14px;
  overflow: hidden;
  transition: var(--transition);
}

.faq-item summary {
  padding: 20px 24px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--deep);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 14px;
  transition: var(--transition);
  user-select: none;
}

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

.faq-item summary::before {
  content: '\f059';
  font-family: 'Font Awesome 6 Free';
  font-weight: 400;
  color: var(--primary);
  font-size: 1.1rem;
  flex-shrink: 0;
}

.faq-item summary::after {
  content: '\f078';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  font-size: 0.8rem;
  margin-left: auto;
  transition: transform 0.3s ease;
  color: var(--text-muted);
}

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

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

.faq-item .faq-answer {
  padding: 0 24px 20px 52px;
  color: var(--text-muted);
  font-size: 0.94rem;
  line-height: 1.8;
}

.faq-item:hover {
  border-color: var(--primary);
  box-shadow: 0 4px 16px rgba(200, 160, 75, 0.08);
}

/* ===== CTA 区 ===== */
.cta-section {
  position: relative;
  background: var(--deep);
  padding: 80px 0;
  color: #fff;
  text-align: center;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-3.png');
  background-size: cover;
  background-position: center;
  opacity: 0.14;
}

.cta-section .container {
  position: relative;
  z-index: 2;
}

.cta-section h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  margin-bottom: 14px;
}

.cta-section p {
  color: rgba(255, 255, 255, 0.75);
  max-width: 620px;
  margin: 0 auto 32px;
  font-size: 1rem;
}

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

/* ===== 页脚 ===== */
.site-footer {
  background: #151525;
  color: rgba(255, 255, 255, 0.7);
  padding: 64px 0 0;
  font-size: 0.9rem;
}

.site-footer .footer-brand {
  font-size: 1.5rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
  letter-spacing: 0.02em;
}

.site-footer p {
  line-height: 1.8;
  max-width: 420px;
}

.site-footer h4 {
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
  position: relative;
}

.site-footer h4::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 28px;
  height: 2px;
  background: var(--primary);
}

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

.site-footer ul li {
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
}

.site-footer ul li i {
  color: var(--primary);
  width: 16px;
  text-align: center;
}

.site-footer ul li a {
  transition: var(--transition);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding: 20px 0;
  margin-top: 48px;
  text-align: center;
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.45);
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.55);
  transition: var(--transition);
}

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

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .article-layout {
    grid-template-columns: 1fr;
  }

  .article-sidebar {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .article-banner {
    padding: 62px 0 50px;
  }

  .article-card {
    padding: 30px 24px;
  }

  .article-layout {
    gap: 30px;
  }

  .article-sidebar {
    grid-template-columns: 1fr;
  }

  .related-section,
  .faq-section,
  .cta-section {
    padding: 50px 0;
  }

  .cta-buttons .btn {
    padding: 10px 24px;
    font-size: 0.88rem;
  }
}

@media (max-width: 520px) {
  .article-banner h1 {
    font-size: 1.45rem;
  }

  .article-meta {
    gap: 12px;
    font-size: 0.82rem;
  }

  .article-card {
    padding: 22px 18px;
    border-radius: 12px;
  }

  .article-content {
    font-size: 0.96rem;
  }

  .article-content h2 {
    font-size: 1.2rem;
  }

  .article-content h3 {
    font-size: 1.05rem;
  }

  .related-card img {
    height: 150px;
  }

  .faq-item summary {
    padding: 16px 18px;
    font-size: 0.92rem;
  }

  .faq-item .faq-answer {
    padding: 0 18px 16px 44px;
  }

  .site-footer {
    padding-top: 44px;
  }

  .footer-bottom {
    margin-top: 32px;
  }
}

/* roulang page: category1 */
/* ========== 设计变量 ========== */
:root {
  --primary: #13243b;
  --primary-700: #1d3352;
  --primary-600: #29456b;
  --accent: #c7a25c;
  --accent-600: #a9853f;
  --bg-soft: #f6f5f1;
  --bg-white: #ffffff;
  --text: #20242c;
  --text-muted: #67717e;
  --border: #e7e5df;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-xs: 6px;
  --shadow: 0 10px 34px rgba(19, 36, 59, 0.08);
  --shadow-lg: 0 18px 44px rgba(19, 36, 59, 0.13);
  --font-base: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", sans-serif;
}

/* ========== 基础重置 ========== */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-base);
  font-size: 1rem;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg-white);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.25s ease;
}

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

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

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

/* ========== 排版 ========== */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  color: var(--primary);
  line-height: 1.3;
  margin-bottom: 0.5rem;
}

p {
  margin-bottom: 0.75rem;
}

.section-eyebrow {
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 14px;
}

.section-lead {
  color: var(--text-muted);
  font-size: 1.02rem;
  max-width: 720px;
}

/* ========== 容器与板块 ========== */
.section {
  padding: 90px 0;
}

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

.section-head {
  margin-bottom: 46px;
}

.section-head.text-center .section-lead {
  margin-left: auto;
  margin-right: auto;
}

/* ========== 按钮 ========== */
.btn-accent {
  background: var(--accent);
  color: #ffffff;
  border: none;
  border-radius: 50px;
  padding: 10px 28px;
  font-weight: 600;
  font-size: 0.96rem;
  transition: all 0.3s ease;
}

.btn-accent:hover,
.btn-accent:focus {
  background: var(--accent-600);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(199, 162, 92, 0.35);
}

.btn-accent.btn-sm {
  padding: 7px 20px;
  font-size: 0.88rem;
}

.btn-accent.btn-lg {
  padding: 13px 34px;
  font-size: 1.02rem;
}

.btn-outline-light {
  border: 1.5px solid rgba(255, 255, 255, 0.6);
  color: #ffffff;
  border-radius: 50px;
  padding: 10px 28px;
  font-weight: 600;
  transition: all 0.3s ease;
}

.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #ffffff;
  border-color: #ffffff;
  transform: translateY(-2px);
}

/* ========== 顶部导航 ========== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1040;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow 0.3s ease;
}

.site-header.scrolled {
  box-shadow: 0 6px 28px rgba(19, 36, 59, 0.08);
}

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

.navbar-brand {
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--primary);
  padding: 0;
}

.navbar-brand:hover {
  color: var(--primary);
}

.navbar-nav .nav-link {
  font-size: 0.94rem;
  font-weight: 500;
  color: var(--text);
  padding: 8px 18px;
  position: relative;
  border-radius: var(--radius-xs);
  transition: color 0.25s ease;
}

.navbar-nav .nav-link::after {
  content: "";
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 2px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.28s ease;
}

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

.navbar-nav .nav-link:hover::after,
.navbar-nav .nav-link.active::after {
  transform: scaleX(1);
}

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

.navbar-toggler {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
}

.navbar-toggler:focus {
  box-shadow: 0 0 0 3px rgba(199, 162, 92, 0.22);
}

.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(19,36,59,0.9)' stroke-width='2' stroke-linecap='round' stroke-miterlimit='10' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* ========== 页面横幅 ========== */
.page-hero {
  padding: 168px 0 96px;
  background: linear-gradient(115deg, rgba(19, 36, 59, 0.96) 0%, rgba(30, 52, 84, 0.82) 55%, rgba(41, 69, 107, 0.68) 100%),
    url("/assets/images/backpic/back-1.png") center / cover no-repeat;
  color: #ffffff;
  position: relative;
}

.hero-breadcrumb {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.hero-breadcrumb a {
  color: rgba(255, 255, 255, 0.72);
}

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

.hero-breadcrumb .current {
  color: var(--accent);
  font-weight: 600;
}

.page-hero h1 {
  font-size: 3rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 18px;
  letter-spacing: 0.02em;
}

.page-hero p {
  font-size: 1.12rem;
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.84);
  max-width: 640px;
  margin-bottom: 34px;
}

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

/* ========== 简介区块 ========== */
.section-intro {
  background: var(--bg-white);
}

.intro-text {
  color: var(--text-muted);
  font-size: 1.04rem;
  line-height: 1.85;
  margin: 18px 0 26px;
}

.intro-features {
  display: grid;
  gap: 14px;
}

.intro-features li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.97rem;
  color: var(--text);
}

.intro-features li i {
  color: var(--accent);
  font-size: 1.06rem;
  margin-top: 3px;
}

.data-card {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 24px;
  text-align: center;
  transition: all 0.3s ease;
  height: 100%;
}

.data-card:hover {
  background: var(--bg-white);
  border-color: var(--accent);
  box-shadow: var(--shadow);
  transform: translateY(-4px);
}

.data-num {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
}

.data-num span {
  font-size: 1.1rem;
  color: var(--accent);
  margin-left: 2px;
}

.data-label {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-top: 6px;
}

/* ========== 分类卡片 ========== */
.card-guide {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-white);
  transition: all 0.35s ease;
  height: 100%;
  display: block;
}

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

.card-guide img {
  width: 100%;
  height: 190px;
  object-fit: cover;
  transition: transform 0.5s ease;
}

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

.card-guide .card-body {
  padding: 26px 24px 28px;
  position: relative;
}

.card-tag {
  display: inline-block;
  background: rgba(199, 162, 92, 0.14);
  color: var(--accent-600);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 30px;
  margin-bottom: 14px;
  letter-spacing: 0.04em;
}

.card-guide h3 {
  font-size: 1.18rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 10px;
}

.card-guide p {
  color: var(--text-muted);
  font-size: 0.94rem;
  line-height: 1.75;
  margin-bottom: 18px;
}

.card-link {
  color: var(--primary);
  font-weight: 600;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.card-link i {
  font-size: 0.82rem;
  transition: transform 0.25s ease;
}

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

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

/* ========== 热门指南列表 ========== */
.guide-intro-card {
  background: var(--primary);
  border-radius: var(--radius);
  padding: 36px 32px;
  color: rgba(255, 255, 255, 0.8);
  position: sticky;
  top: 110px;
}

.guide-intro-card h3 {
  color: #ffffff;
  font-size: 1.4rem;
  margin-bottom: 14px;
}

.guide-intro-card p {
  font-size: 0.95rem;
  line-height: 1.8;
  margin-bottom: 22px;
}

.guide-intro-card .list-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.1);
  color: var(--accent);
  font-size: 1.1rem;
  margin-bottom: 18px;
}

.guide-list {
  display: grid;
  gap: 16px;
}

.guide-list-item {
  display: flex;
  align-items: center;
  gap: 20px;
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 22px 24px;
  transition: all 0.3s ease;
}

.guide-list-item:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow);
  transform: translateX(6px);
}

.guide-num {
  flex: 0 0 auto;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(199, 162, 92, 0.13);
  color: var(--primary);
  font-weight: 800;
  font-size: 1.05rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.guide-content h4 {
  font-size: 1.02rem;
  font-weight: 700;
  margin-bottom: 4px;
  color: var(--text);
}

.guide-content p {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.badge-guide {
  flex: 0 0 auto;
  font-size: 0.78rem;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: 30px;
  background: var(--bg-soft);
  color: var(--primary);
  border: 1px solid var(--border);
}

.badge-guide.info {
  background: rgba(41, 69, 107, 0.1);
  color: var(--primary-700);
  border-color: transparent;
}

.badge-guide.safe {
  background: rgba(199, 162, 92, 0.15);
  color: var(--accent-600);
  border-color: transparent;
}

.badge-guide.func {
  background: rgba(19, 36, 59, 0.08);
  color: var(--primary);
  border-color: transparent;
}

/* ========== 使用流程 ========== */
.process-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 28px 32px;
  text-align: center;
  height: 100%;
  transition: all 0.3s ease;
}

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

.process-step {
  width: 60px;
  height: 60px;
  background: var(--primary);
  color: #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  font-weight: 800;
  margin: 0 auto 20px;
  box-shadow: 0 8px 20px rgba(19, 36, 59, 0.18);
}

.process-card h3 {
  font-size: 1.12rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.process-card p {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 0;
}

/* ========== FAQ ========== */
.accordion-item {
  background: var(--bg-white);
  border: 1px solid var(--border) !important;
  border-radius: var(--radius-sm) !important;
  margin-bottom: 14px;
  overflow: hidden;
}

.accordion-button {
  padding: 20px 26px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  background: var(--bg-white);
  box-shadow: none !important;
  border: none;
  transition: background 0.25s ease;
}

.accordion-button::after {
  background-size: 1rem;
  opacity: 0.6;
}

.accordion-button:not(.collapsed) {
  color: var(--primary);
  background: rgba(199, 162, 92, 0.08);
}

.accordion-button:not(.collapsed)::after {
  filter: brightness(0.6);
}

.accordion-item:first-of-type .accordion-button {
  border-radius: var(--radius-sm);
}

.accordion-item:last-of-type .accordion-button.collapsed {
  border-radius: var(--radius-sm);
}

.accordion-body {
  padding: 0 26px 24px;
  color: var(--text-muted);
  line-height: 1.85;
  font-size: 0.96rem;
}

/* ========== CTA ========== */
.cta-section {
  background: linear-gradient(120deg, var(--primary) 0%, var(--primary-600) 100%);
  border-radius: var(--radius);
  padding: 60px;
  color: #ffffff;
  position: relative;
  overflow: hidden;
}

.cta-section::after {
  content: "";
  position: absolute;
  right: -40px;
  top: -40px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
}

.cta-section h2 {
  color: #ffffff;
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: 12px;
}

.cta-section p {
  color: rgba(255, 255, 255, 0.75);
  font-size: 1rem;
  margin-bottom: 0;
}

.cta-section .btn-accent {
  background: #ffffff;
  color: var(--primary);
}

.cta-section .btn-accent:hover {
  background: var(--accent);
  color: #ffffff;
}

/* ========== 页脚 ========== */
.site-footer {
  background: var(--primary);
  color: rgba(255, 255, 255, 0.7);
  padding: 68px 0 0;
  margin-top: 90px;
}

.site-footer a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition: color 0.25s ease;
}

.site-footer a:hover {
  color: var(--accent);
}

.footer-brand {
  font-size: 1.4rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 14px;
  letter-spacing: 0.02em;
}

.site-footer p {
  font-size: 0.92rem;
  line-height: 1.8;
  margin-bottom: 0;
}

.site-footer h4 {
  color: #ffffff;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 18px;
}

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

.site-footer ul li {
  font-size: 0.92rem;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.site-footer ul li i {
  color: var(--accent);
  width: 16px;
  text-align: center;
  font-size: 0.9rem;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 22px 0;
  margin-top: 46px;
  font-size: 0.86rem;
  color: rgba(255, 255, 255, 0.45);
}

.footer-bottom h4 {
  display: none;
}

/* ========== 响应式 ========== */
@media (max-width: 991.98px) {
  .site-header .navbar {
    padding: 12px 0;
  }

  .navbar-collapse {
    background: rgba(255, 255, 255, 0.98);
    border-radius: var(--radius-sm);
    margin-top: 12px;
    padding: 16px 20px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
  }

  .navbar-nav .nav-link {
    padding: 12px 10px;
  }

  .navbar-nav .nav-link::after {
    left: 10px;
    right: 10px;
  }

  .navbar-nav .btn-accent {
    margin-top: 12px;
    display: inline-block;
  }

  .page-hero {
    padding: 140px 0 76px;
  }

  .page-hero h1 {
    font-size: 2.4rem;
  }

  .section {
    padding: 70px 0;
  }

  .guide-intro-card {
    position: static;
    margin-bottom: 24px;
  }

  .cta-section {
    padding: 44px 36px;
  }
}

@media (max-width: 767.98px) {
  .page-hero h1 {
    font-size: 2rem;
  }

  .page-hero p {
    font-size: 1rem;
  }

  .section-title {
    font-size: 1.6rem;
  }

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

  .guide-content {
    flex: 1 1 calc(100% - 60px);
  }

  .guide-content p {
    white-space: normal;
  }

  .badge-guide {
    margin-left: 58px;
  }
}

@media (max-width: 575.98px) {
  .section {
    padding: 56px 0;
  }

  .page-hero {
    padding: 124px 0 60px;
  }

  .page-hero h1 {
    font-size: 1.72rem;
  }

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

  .section-title {
    font-size: 1.4rem;
  }

  .data-card {
    padding: 22px 16px;
  }

  .data-num {
    font-size: 1.9rem;
  }

  .card-guide img {
    height: 160px;
  }

  .cta-section {
    padding: 36px 24px;
    text-align: center;
  }

  .cta-section .text-lg-end {
    text-align: center !important;
    margin-top: 20px;
  }

  .site-footer {
    padding-top: 48px;
  }

  .footer-bottom p {
    font-size: 0.82rem;
    text-align: center;
  }
}

/* roulang page: category2 */
:root {
  --primary: #2b3a67;
  --primary-2: #3e4e8f;
  --primary-soft: rgba(43, 58, 103, 0.08);
  --accent: #d99a2b;
  --accent-2: #c38a20;
  --accent-soft: rgba(217, 154, 43, 0.12);
  --dark: #101828;
  --bg: #f7f8fb;
  --ink: #1c2333;
  --muted: #6b7280;
  --border: #e8eaf2;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 8px 30px rgba(16, 24, 40, 0.08);
  --shadow-lg: 0 18px 48px rgba(16, 24, 40, 0.14);
  --transition: all 0.3s ease;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Helvetica Neue", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  margin: 0;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul, ol { padding-left: 0; list-style: none; margin-bottom: 0; }
.container { max-width: 1200px; }
.btn { font-weight: 600; border-radius: 50px; padding: 0.65rem 1.6rem; transition: var(--transition); }
.btn:focus, .btn:focus-visible { box-shadow: 0 0 0 0.25rem rgba(217, 154, 43, 0.25); outline: none; }
.btn-accent {
  background: var(--accent);
  color: #fff;
  border: none;
  box-shadow: 0 4px 16px rgba(217, 154, 43, 0.3);
}
.btn-accent:hover, .btn-accent:focus {
  background: var(--accent-2);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(217, 154, 43, 0.36);
}
.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 1.5px solid var(--primary);
}
.btn-outline:hover, .btn-outline:focus {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  transform: translateY(-2px);
}
.site-header {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 1050;
  transition: var(--transition);
}
.site-header .navbar { padding: 0.8rem 0; }
.navbar-brand {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: 0.02em;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.navbar-brand::before {
  content: "";
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: inline-block;
  flex-shrink: 0;
}
.navbar-brand:hover { color: var(--primary); }
.navbar-nav .nav-item { margin: 0 0.25rem; }
.navbar-nav .nav-link {
  padding: 0.5rem 0.9rem;
  font-weight: 500;
  color: #4b5563;
  border-radius: 8px;
  position: relative;
}
.navbar-nav .nav-link:hover { color: var(--primary); }
.navbar-nav .nav-link.active {
  color: var(--primary);
  font-weight: 600;
}
.navbar-nav .nav-link.active::after {
  content: "";
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 3px;
  border-radius: 3px;
  background: var(--accent);
}
.navbar-toggler { border: none; padding: 0.4rem 0.6rem; }
.navbar-toggler:focus { box-shadow: none; }
.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(43,58,103,0.9)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}
.page-hero {
  position: relative;
  padding: 6.5rem 0 5rem;
  background-size: cover;
  background-position: center;
  color: #fff;
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(16, 24, 40, 0.82) 0%, rgba(43, 58, 103, 0.68) 60%, rgba(217, 154, 43, 0.3) 100%);
}
.page-hero .container { position: relative; z-index: 2; }
.page-hero h1 {
  font-size: 2.9rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  margin-bottom: 1rem;
  animation: fadeUp 0.7s ease both;
}
.page-hero p {
  font-size: 1.1rem;
  max-width: 680px;
  opacity: 0.92;
  margin-bottom: 1.8rem;
  animation: fadeUp 0.7s ease 0.1s both;
}
.page-hero .btn { animation: fadeUp 0.7s ease 0.2s both; }
.breadcrumb-wrap {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  margin-bottom: 1.2rem;
  color: rgba(255, 255, 255, 0.7);
  animation: fadeUp 0.7s ease both;
}
.breadcrumb-wrap a { color: rgba(255, 255, 255, 0.85); }
.breadcrumb-wrap a:hover { color: #fff; }
.breadcrumb-wrap .sep { opacity: 0.5; }
.section-block { padding: 5rem 0; }
.section-block .section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--accent-soft);
  color: var(--accent-2);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.02em;
  padding: 0.35rem 1rem;
  border-radius: 50px;
  margin-bottom: 1rem;
}
.section-block h2 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: -0.01em;
  margin-bottom: 0.75rem;
}
.section-block .section-sub {
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 640px;
  margin-bottom: 2.5rem;
}
.filter-bar {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 60px;
  padding: 0.7rem 1.4rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
  margin-bottom: 2.4rem;
}
.filter-bar .filter-item {
  padding: 0.4rem 1.2rem;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--muted);
  background: transparent;
  border: 1px solid transparent;
  transition: var(--transition);
  cursor: pointer;
}
.filter-bar .filter-item:hover {
  background: var(--primary-soft);
  color: var(--primary);
}
.filter-bar .filter-item.active {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(43, 58, 103, 0.25);
}
.news-card {
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
  height: 100%;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
}
.news-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(217, 154, 43, 0.35);
}
.news-card .card-img-wrap {
  position: relative;
  overflow: hidden;
  height: 200px;
}
.news-card .card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.news-card:hover .card-img-wrap img { transform: scale(1.05); }
.news-card .card-img-wrap::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(16, 24, 40, 0.18));
  pointer-events: none;
}
.news-card .tag-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(6px);
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.3rem 0.9rem;
  border-radius: 50px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}
.news-card .card-body { padding: 1.4rem; display: flex; flex-direction: column; flex: 1; }
.news-card .card-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.45;
  margin-bottom: 0.7rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-card .card-text {
  font-size: 0.95rem;
  color: var(--muted);
  line-height: 1.65;
  margin-bottom: 1.2rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-card .card-meta {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.9rem;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--muted);
}
.news-card .card-meta i { color: var(--accent); }
.hot-sidebar {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.8rem;
  height: 100%;
}
.hot-sidebar .hot-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 2px solid var(--accent-soft);
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.hot-sidebar .hot-title i { color: var(--accent); }
.hot-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 0.75rem 0;
  border-bottom: 1px dashed var(--border);
  transition: var(--transition);
}
.hot-item:last-child { border-bottom: none; }
.hot-item:hover { padding-left: 6px; }
.hot-item .hot-rank {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--primary-soft);
  color: var(--primary);
  font-weight: 700;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: var(--transition);
}
.hot-item:hover .hot-rank { background: var(--accent); color: #fff; }
.hot-item .hot-rank.first { background: var(--accent); color: #fff; }
.hot-item .hot-link { font-size: 0.95rem; font-weight: 600; color: var(--ink); line-height: 1.5; }
.hot-item .hot-link:hover { color: var(--accent-2); }
.hot-item .hot-link small {
  display: block;
  font-weight: 400;
  color: var(--muted);
  font-size: 0.8rem;
  margin-top: 0.15rem;
}
.stats-section {
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  background-size: cover;
  background-position: center;
  position: relative;
  padding: 4.5rem 0;
  color: #fff;
}
.stats-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(16, 24, 40, 0.4);
}
.stats-section .container { position: relative; z-index: 2; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; }
.stat-item {
  text-align: center;
  padding: 1.5rem 1rem;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  backdrop-filter: blur(6px);
  transition: var(--transition);
}
.stat-item:hover { background: rgba(255, 255, 255, 0.14); transform: translateY(-4px); }
.stat-item .num {
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: 0.02em;
}
.stat-item .label { margin-top: 0.5rem; font-size: 0.9rem; opacity: 0.9; }
.newsletter-section {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 3rem 3rem;
  box-shadow: var(--shadow);
  overflow: hidden;
  position: relative;
}
.newsletter-section::before {
  content: "";
  position: absolute;
  top: -60px;
  right: -60px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: var(--accent-soft);
  z-index: 0;
}
.newsletter-section .col, .newsletter-section .row { position: relative; z-index: 1; }
.newsletter-section h2 {
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 0.5rem;
}
.newsletter-section p { color: var(--muted); margin-bottom: 0.6rem; }
.newsletter-form .form-control {
  border-radius: 50px;
  border: 1.5px solid var(--border);
  padding: 0.75rem 1.4rem;
  font-size: 0.95rem;
  transition: var(--transition);
  background: var(--bg);
}
.newsletter-form .form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 0.25rem rgba(43, 58, 103, 0.1);
  background: #fff;
}
.newsletter-form .btn { white-space: nowrap; }
.faq-section .accordion { border: none; }
.faq-section .accordion-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
  background: #fff;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);
}
.faq-section .accordion-item:not(:first-of-type) { border-top: 1px solid var(--border); }
.faq-section .accordion-button {
  font-weight: 600;
  color: var(--ink);
  background: #fff;
  padding: 1.1rem 1.4rem;
  font-size: 1rem;
  box-shadow: none;
}
.faq-section .accordion-button:not(.collapsed) {
  background: var(--primary-soft);
  color: var(--primary);
}
.faq-section .accordion-button:focus { box-shadow: none; }
.faq-section .accordion-button::after { transition: var(--transition); }
.faq-section .accordion-body { padding: 1rem 1.4rem 1.2rem; color: var(--muted); font-size: 0.95rem; }
.site-footer {
  background: #0e1525;
  color: rgba(255, 255, 255, 0.8);
  padding: 4.5rem 0 0;
  margin-top: 2rem;
}
.site-footer .footer-brand {
  font-size: 1.5rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.site-footer .footer-brand::before {
  content: "";
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: linear-gradient(135deg, #3e4e8f, #d99a2b);
  display: inline-block;
}
.site-footer p { color: rgba(255, 255, 255, 0.65); font-size: 0.9rem; line-height: 1.7; }
.site-footer h4 {
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1.2rem;
  position: relative;
  padding-bottom: 0.6rem;
}
.site-footer h4::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 24px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}
.site-footer ul li { margin-bottom: 0.6rem; }
.site-footer ul li a {
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.9rem;
  transition: var(--transition);
}
.site-footer ul li a:hover {
  color: var(--accent);
  padding-left: 4px;
}
.site-footer ul li i {
  color: var(--accent);
  margin-right: 0.5rem;
  width: 16px;
  text-align: center;
}
.footer-bottom {
  margin-top: 3rem;
  padding: 1.2rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
}
.footer-bottom p { color: rgba(255, 255, 255, 0.45); font-size: 0.82rem; }
.footer-bottom a { color: rgba(255, 255, 255, 0.6); }
.footer-bottom a:hover { color: var(--accent); }
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
@media (max-width: 991.98px) {
  .page-hero { padding: 4.5rem 0 3.8rem; }
  .page-hero h1 { font-size: 2.2rem; }
  .navbar-nav .nav-link.active::after { display: none; }
  .navbar-nav .nav-item { margin: 0.2rem 0; }
  .navbar-nav .btn { margin-top: 0.5rem; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 1rem; }
  .newsletter-section { padding: 2rem 1.5rem; }
  .newsletter-section .newsletter-form .d-flex { flex-wrap: wrap; gap: 0.75rem; }
  .newsletter-section .newsletter-form .form-control { width: 100%; }
  .newsletter-section .newsletter-form .btn { width: 100%; }
}
@media (max-width: 767.98px) {
  .page-hero { padding: 3.5rem 0 3rem; }
  .page-hero h1 { font-size: 1.8rem; }
  .page-hero p { font-size: 1rem; }
  .section-block { padding: 3.5rem 0; }
  .section-block h2 { font-size: 1.6rem; }
  .filter-bar { border-radius: 18px; padding: 0.8rem; }
  .news-card .card-img-wrap { height: 180px; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stat-item .num { font-size: 1.6rem; }
}
@media (max-width: 575.98px) {
  .page-hero h1 { font-size: 1.6rem; }
  .page-hero p { font-size: 0.95rem; }
  .section-block { padding: 3rem 0; }
  .section-block h2 { font-size: 1.4rem; }
  .news-card .card-title { font-size: 1rem; }
  .news-card .card-text { font-size: 0.9rem; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 0.8rem; }
  .stat-item { padding: 1.2rem 0.8rem; }
  .stat-item .num { font-size: 1.4rem; }
  .newsletter-section { padding: 1.8rem 1.2rem; }
  .hot-sidebar { padding: 1.4rem; }
}