/* roulang page: index */
:root {
  --primary: #1E5F5B;
  --primary-dark: #14433F;
  --primary-light: #E9F2F0;
  --accent: #C97C3A;
  --accent-light: #FAF0E3;
  --bg: #F5F1EA;
  --card-bg: #FFFFFF;
  --text: #22302F;
  --text-secondary: #6B7B78;
  --text-light: #9AA8A6;
  --border: #E3DCCF;
  --footer-bg: #132120;
  --footer-text: #9AA8A6;
  --radius-card: 16px;
  --radius-btn: 10px;
  --shadow: 0 4px 16px rgba(20, 45, 43, 0.08);
  --shadow-hover: 0 12px 32px rgba(20, 45, 43, 0.14);
  --transition: 0.25s ease-out;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background-color: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.75;
  overflow-x: hidden;
}

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

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

ul, ol {
  list-style: none;
}

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

section {
  padding: 96px 0;
}

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

h1, h2, h3, h4, h5, h6 {
  color: var(--text);
  font-weight: 700;
  line-height: 1.3;
}

.btn {
  border-radius: var(--radius-btn);
  font-weight: 600;
  padding: 10px 24px;
  transition: all var(--transition);
  border: none;
}

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

.btn-primary:hover, .btn-primary:focus {
  background-color: var(--primary-dark);
  color: #fff;
  box-shadow: 0 8px 24px rgba(20, 45, 43, 0.22);
}

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

.btn-accent:hover, .btn-accent:focus {
  background-color: #b36a2c;
  color: #fff;
}

.btn-outline-light-custom {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.65);
  color: #fff;
}

.btn-outline-light-custom:hover {
  background: rgba(255, 255, 255, 0.24);
  border-color: #fff;
  color: #fff;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 999px;
  letter-spacing: 0.03em;
  margin-bottom: 16px;
}

.section-title {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 16px;
  position: relative;
  padding-left: 14px;
}

.section-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 4px;
  height: 70%;
  background: var(--accent);
  border-radius: 2px;
}

.section-subtitle {
  font-size: 15px;
  color: var(--text-secondary);
  max-width: 560px;
  line-height: 1.7;
}

/* === 导航 === */
.site-navbar {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  width: calc(100% - 40px);
  max-width: 1200px;
  background: rgba(255, 255, 255, 0.90);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(0, 0, 0, 0.05);
  border-radius: 999px;
  box-shadow: 0 8px 30px rgba(20, 45, 43, 0.12);
  z-index: 1080;
  padding: 8px 24px;
  transition: box-shadow var(--transition);
}

.site-navbar .container {
  max-width: 1200px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar-brand {
  font-size: 22px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: 0.02em;
  display: flex;
  align-items: center;
  padding: 0;
  margin: 0;
}

.navbar-brand em {
  font-style: normal;
  color: var(--accent);
  font-weight: 700;
}

.site-navbar .navbar-nav {
  margin: 0 auto;
  gap: 8px;
  align-items: center;
}

.site-navbar .nav-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  padding: 8px 16px;
  border-radius: 999px;
  transition: all var(--transition);
}

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

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

.navbar-cta {
  padding: 8px 20px;
  font-size: 14px;
  line-height: 24px;
  border-radius: 999px;
  white-space: nowrap;
}

.navbar-toggler {
  border: none;
  background: var(--primary-light);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}

.navbar-toggler:focus {
  box-shadow: none;
}

.navbar-toggler-icon {
  background-image: none;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 20px;
  height: 20px;
}

.navbar-toggler-icon::before {
  content: "";
  display: block;
  width: 20px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

.navbar-toggler-icon::after {
  content: "";
  display: block;
  width: 20px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

/* === Hero === */
.hero-section {
  position: relative;
  min-height: 92vh;
  min-height: 640px;
  background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  overflow: hidden;
}

.hero-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(20, 67, 63, 0.85) 0%, rgba(30, 95, 91, 0.65) 40%, rgba(30, 95, 91, 0.25) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 620px;
  color: #fff;
}

.hero-badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.35);
  color: #fff;
  font-size: 13px;
  padding: 5px 16px;
  border-radius: 999px;
  margin-bottom: 24px;
  letter-spacing: 0.04em;
  backdrop-filter: blur(4px);
}

.hero-title {
  font-size: 48px;
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
  margin-bottom: 20px;
  letter-spacing: 0.02em;
}

.hero-divider {
  width: 28px;
  height: 4px;
  background: var(--accent);
  border-radius: 2px;
  margin-bottom: 20px;
}

.hero-subtitle {
  font-size: 16px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.92);
  margin-bottom: 36px;
  max-width: 480px;
}

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

.hero-buttons .btn {
  min-width: 120px;
  padding: 12px 28px;
  font-size: 15px;
}

.hero-scroll {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  width: 44px;
  height: 44px;
  border: 2px solid rgba(255, 255, 255, 0.5);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.6);
  font-size: 14px;
  transition: all var(--transition);
  z-index: 2;
}

.hero-scroll:hover {
  color: #fff;
  border-color: #fff;
  background: rgba(255, 255, 255, 0.1);
}

/* === 痛点区 === */
.pain-points {
  background: var(--bg);
  padding: 96px 0;
}

.pain-points .text-center .section-title {
  padding-left: 0;
}

.pain-points .text-center .section-title::before {
  display: none;
}

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

.pain-points-header .section-tag {
  margin-bottom: 12px;
}

.pain-points-header .section-title {
  font-size: 32px;
}

.pain-points-header .section-subtitle {
  margin: 0 auto;
}

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

.pain-item {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 24px 28px;
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
  border-radius: 8px;
}

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

.pain-item:hover {
  background: var(--primary-light);
}

.pain-number {
  font-size: 40px;
  font-weight: 800;
  color: var(--accent);
  font-family: "SF Mono", "Consolas", monospace;
  min-width: 68px;
  text-align: center;
}

.pain-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  min-width: 160px;
}

.pain-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.65;
  margin: 0;
}

/* === 解决方案区 === */
.solution-section {
  background: var(--primary-light);
  padding: 96px 0;
}

.solution-wrap {
  display: flex;
  align-items: center;
  gap: 60px;
}

.solution-image {
  flex: 0 0 48%;
  position: relative;
}

.solution-image img {
  width: 100%;
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-hover);
  object-fit: cover;
  aspect-ratio: 4 / 3;
}

.solution-bubble {
  position: absolute;
  width: 44px;
  height: 44px;
  background: var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 16px;
  box-shadow: 0 8px 20px rgba(201, 124, 58, 0.35);
  top: -14px;
  right: 30px;
}

.solution-text {
  flex: 1;
}

.solution-text .section-title {
  font-size: 32px;
}

.solution-text p {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 28px;
  line-height: 1.75;
}

.solution-points {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.solution-point {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 20px;
  background: var(--card-bg);
  border-radius: 12px;
  box-shadow: 0 2px 10px rgba(20, 45, 43, 0.04);
  transition: all var(--transition);
}

.solution-point:hover {
  box-shadow: var(--shadow);
  transform: translateX(4px);
}

.solution-point-icon {
  width: 40px;
  height: 40px;
  background: var(--primary-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 16px;
  flex-shrink: 0;
}

.solution-point-text {
  flex: 1;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
}

.solution-point-arrow {
  color: var(--text-light);
  font-size: 14px;
  transition: transform var(--transition);
}

.solution-point:hover .solution-point-arrow {
  transform: translateX(4px);
  color: var(--primary);
}

/* === 数据区 === */
.stats-section {
  background: var(--primary-dark);
  padding: 80px 0;
  color: #fff;
}

.stats-section .section-title {
  color: #fff;
}

.stats-section .section-subtitle {
  color: #A8C4BF;
}

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

.stats-header .section-title {
  padding-left: 0;
}

.stats-header .section-title::before {
  display: none;
}

.stats-header .section-subtitle {
  margin: 0 auto;
}

.stats-grid {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.stat-item {
  flex: 1;
  text-align: center;
  position: relative;
  padding: 0 24px;
}

.stat-item:not(:last-child)::after {
  content: "";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 52px;
  background: rgba(255, 255, 255, 0.15);
}

.stat-number {
  font-size: 48px;
  font-weight: 800;
  color: var(--accent);
  font-family: "SF Mono", "Consolas", monospace;
  line-height: 1.1;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.8);
}

.stats-quote {
  margin-top: 48px;
  text-align: center;
  font-size: 15px;
  font-weight: 700;
  color: #F5F1EA;
  letter-spacing: 0.02em;
}

/* === FAQ 区 === */
.faq-section {
  background: #FFFFFF;
  padding: 96px 0;
}

.faq-layout {
  display: flex;
  gap: 48px;
  align-items: flex-start;
}

.faq-left {
  flex: 0 0 300px;
  position: sticky;
  top: 120px;
}

.faq-left .section-title {
  font-size: 28px;
  margin-bottom: 12px;
}

.faq-left p {
  color: var(--text-secondary);
  font-size: 14px;
}

.faq-right {
  flex: 1;
}

.faq-item {
  border-bottom: 1px solid var(--border);
  padding: 0;
}

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

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 8px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  background: none;
  border: none;
  width: 100%;
  text-align: left;
  transition: color var(--transition);
  gap: 16px;
}

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

.faq-icon {
  width: 28px;
  height: 28px;
  border: 2px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--primary);
  transition: all var(--transition);
  flex-shrink: 0;
}

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

.faq-answer {
  display: none;
  padding: 0 8px 20px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  background: #FBF8F2;
  border-radius: 8px;
  padding: 16px 20px;
}

.faq-item.active .faq-answer {
  display: block;
}

/* === 证言区 === */
.testimonials-section {
  background: var(--accent-light);
  padding: 96px 0;
}

.testimonials-header {
  text-align: center;
  margin-bottom: 64px;
}

.testimonials-header .section-title {
  padding-left: 0;
}

.testimonials-header .section-title::before {
  display: none;
}

.testimonials-header .section-subtitle {
  margin: 0 auto;
}

.testimonial-grid {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  gap: 24px;
  padding: 30px 0 20px;
  max-width: 1050px;
  margin: 0 auto;
}

.testimonial-card {
  flex: 1;
  background: #fff;
  border-radius: var(--radius-card);
  padding: 28px;
  box-shadow: var(--shadow);
  transition: all var(--transition);
  margin-top: 20px;
}

.testimonial-card:nth-child(2) {
  transform: translateY(-20px);
  box-shadow: var(--shadow-hover);
}

.testimonial-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

.testimonial-card:nth-child(2):hover {
  transform: translateY(-26px);
}

.testimonial-stars {
  color: var(--accent);
  font-size: 14px;
  margin-bottom: 14px;
  letter-spacing: 2px;
}

.testimonial-text {
  font-size: 15px;
  line-height: 1.7;
  color: var(--text);
  margin-bottom: 18px;
  min-height: 78px;
}

.testimonial-user {
  display: flex;
  align-items: center;
  gap: 12px;
}

.testimonial-avatar {
  width: 40px;
  height: 40px;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
}

.testimonial-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
}

.testimonial-role {
  font-size: 12px;
  color: var(--text-light);
}

/* === CTA 表单区 === */
.cta-section {
  background: var(--bg);
  padding: 80px 0;
}

.cta-box {
  background: var(--primary-dark);
  border-radius: 20px;
  padding: 64px 48px;
  position: relative;
  overflow: hidden;
}

.cta-box::before {
  content: "";
  position: absolute;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
  top: -80px;
  right: -60px;
}

.cta-box::after {
  content: "";
  position: absolute;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: rgba(201, 124, 58, 0.18);
  bottom: -40px;
  left: -30px;
}

.cta-content {
  text-align: center;
  position: relative;
  z-index: 2;
}

.cta-title {
  color: #fff;
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 12px;
}

.cta-subtitle {
  color: rgba(255, 255, 255, 0.7);
  font-size: 14px;
  margin-bottom: 36px;
}

.cta-form {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
  max-width: 900px;
  margin: 0 auto;
}

.cta-form .form-control {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 8px;
  color: #fff;
  padding: 11px 16px;
  font-size: 14px;
  min-height: 46px;
  flex: 1 1 180px;
}

.cta-form .form-control::placeholder {
  color: #A8CBBF;
}

.cta-form .form-control:focus {
  background: rgba(255, 255, 255, 0.18);
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(201, 124, 58, 0.25);
  color: #fff;
}

.cta-form .form-textarea {
  flex-basis: 100%;
  resize: none;
  min-height: 70px;
}

.cta-form .btn-submit {
  background: var(--accent);
  color: #fff;
  padding: 12px 36px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 15px;
  border: none;
  transition: all var(--transition);
  min-height: 46px;
  flex-shrink: 0;
}

.cta-form .btn-submit:hover {
  background: #b36a2c;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(201, 124, 58, 0.3);
}

/* === 资讯区 === */
.news-section {
  background: var(--bg);
  padding: 96px 0;
}

.news-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 40px;
}

.news-header .section-title {
  margin-bottom: 0;
}

.news-header-link {
  font-size: 14px;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
}

.news-header-link i {
  transition: transform var(--transition);
}

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

.featured-news-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  margin-bottom: 28px;
}

.featured-news-card {
  background: var(--card-bg);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}

.featured-news-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}

.featured-news-thumb {
  width: 100%;
  height: 220px;
  overflow: hidden;
}

.featured-news-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.featured-news-card:hover .featured-news-thumb img {
  transform: scale(1.04);
}

.featured-news-content {
  padding: 20px 24px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.news-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}

.badge-cat {
  background: var(--primary-light);
  color: var(--primary-dark);
  font-size: 12px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 999px;
}

.news-date {
  font-size: 13px;
  color: var(--text-light);
}

.news-title {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 8px;
}

.news-title a {
  color: var(--text);
  transition: color var(--transition);
}

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

.news-summary {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 14px;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.read-more-link {
  font-size: 13px;
  color: var(--primary);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap var(--transition);
}

.read-more-link:hover {
  gap: 10px;
  color: var(--primary-dark);
}

.standard-news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.news-card {
  background: var(--card-bg);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: all var(--transition);
}

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

.news-card-thumb {
  width: 100%;
  height: 150px;
  overflow: hidden;
}

.news-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}

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

.news-card-body {
  padding: 18px 20px 20px;
}

.news-card-body .news-title {
  font-size: 16px;
}

.news-card-body .news-summary {
  margin-bottom: 10px;
}

/* 空状态 */
.empty-state {
  text-align: center;
  padding: 80px 20px;
  background: var(--card-bg);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow);
}

.empty-state-icon {
  width: 72px;
  height: 72px;
  border: 2px dashed var(--border);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--text-light);
  font-size: 24px;
}

.empty-state p {
  font-size: 15px;
  color: var(--text-secondary);
}

/* === 页脚 === */
.site-footer {
  background: var(--footer-bg);
  color: var(--footer-text);
  border-top: 3px solid var(--accent);
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
}

.footer-brand {
  font-size: 22px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
}

.footer-brand em {
  font-style: normal;
  color: var(--accent);
}

.footer-desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--footer-text);
  max-width: 280px;
}

.footer-title {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

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

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

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 14px;
}

.footer-contact .contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.74);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

/* === 响应式 === */
@media (max-width: 1199.98px) {
  .hero-title {
    font-size: 40px;
  }
  .solution-wrap {
    gap: 40px;
  }
  .standard-news-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 991.98px) {
  section {
    padding: 72px 0;
  }
  .site-navbar {
    top: 12px;
    width: calc(100% - 24px);
    border-radius: 20px;
    padding: 8px 16px;
  }
  .site-navbar .navbar-collapse {
    position: absolute;
    top: 56px;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(14px);
    border-radius: 20px;
    box-shadow: var(--shadow-hover);
    padding: 20px 24px;
    border: 1px solid var(--border);
  }
  .site-navbar .navbar-nav {
    margin: 0;
    gap: 4px;
  }
  .site-navbar .nav-link {
    padding: 12px 16px;
    font-size: 16px;
    border-radius: 12px;
  }
  .navbar-cta {
    margin-top: 12px;
    width: 100%;
    text-align: center;
  }
  .hero-section {
    min-height: 80vh;
  }
  .hero-title {
    font-size: 34px;
  }
  .pain-item {
    flex-wrap: wrap;
  }
  .pain-title {
    min-width: 120px;
    padding-left: 0;
  }
  .solution-wrap {
    flex-direction: column;
    align-items: stretch;
  }
  .solution-image {
    flex: none;
  }
  .solution-image img {
    max-height: 360px;
  }
  .stats-grid {
    flex-wrap: wrap;
  }
  .stat-item {
    flex: 0 0 50%;
    margin-bottom: 24px;
  }
  .stat-item:not(:last-child)::after {
    display: none;
  }
  .faq-layout {
    flex-direction: column;
    gap: 32px;
  }
  .faq-left {
    flex: none;
    width: 100%;
    position: static;
  }
  .testimonial-grid {
    flex-direction: column;
    align-items: center;
    gap: 16px;
  }
  .testimonial-card {
    max-width: 480px;
    margin-top: 0;
  }
  .testimonial-card:nth-child(2) {
    transform: none;
  }
  .featured-news-grid {
    grid-template-columns: 1fr;
  }
  .standard-news-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .cta-box {
    padding: 48px 28px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 767.98px) {
  section {
    padding: 64px 0;
  }
  .hero-section {
    min-height: auto;
    padding: 110px 0 70px;
  }
  .hero-title {
    font-size: 28px;
  }
  .hero-buttons .btn {
    width: 100%;
  }
  .section-title {
    font-size: 26px;
  }
  .pain-item {
    padding: 18px 12px;
    gap: 14px;
  }
  .pain-number {
    font-size: 32px;
    min-width: 46px;
  }
  .pain-title {
    min-width: 100px;
    font-size: 15px;
  }
  .pain-desc {
    font-size: 13px;
    width: 100%;
  }
  .solution-text .section-title {
    font-size: 24px;
  }
  .stat-number {
    font-size: 32px;
  }
  .stats-quote {
    font-size: 13px;
  }
  .standard-news-grid {
    grid-template-columns: 1fr;
  }
  .featured-news-thumb {
    height: 180px;
  }
  .cta-form .form-control {
    flex: 1 1 100%;
  }
  .cta-form .btn-submit {
    width: 100%;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .news-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  .footer-bottom {
    padding: 16px 10px;
  }
}

/* roulang page: category1 */
:root {
  --primary: #1E5F5B;
  --primary-dark: #14433F;
  --primary-light: #E9F2F0;
  --accent: #C97C3A;
  --accent-light: #FAF0E3;
  --bg: #F5F1EA;
  --white: #FFFFFF;
  --text: #22302F;
  --text-secondary: #6B7B78;
  --text-light: #9AA8A6;
  --border: #E3DCCF;
  --footer-bg: #132120;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 4px 16px rgba(20, 45, 43, 0.08);
  --shadow-hover: 0 12px 32px rgba(20, 45, 43, 0.14);
  --trans: all 0.25s ease-out;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 16px;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

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

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

.container {
  max-width: 1200px;
}

/* ===== 悬浮胶囊导航 ===== */
.site-navbar {
  position: fixed !important;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  width: calc(100% - 32px);
  max-width: 1200px;
  padding: 10px 24px !important;
  background: rgba(255, 255, 255, 0.92) !important;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 999px;
  border: 1px solid rgba(0, 0, 0, 0.05);
  box-shadow: 0 8px 30px rgba(20, 45, 43, 0.12);
  z-index: 1080;
}

.site-navbar .container {
  padding: 0;
  display: flex;
  align-items: center;
}

.site-navbar .navbar-brand {
  font-size: 20px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: 0.02em;
  line-height: 1.2;
  margin: 0;
  white-space: nowrap;
}

.site-navbar .navbar-brand em {
  font-style: normal;
  color: var(--accent);
}

.site-navbar .navbar-nav {
  align-items: center;
  gap: 4px;
}

.site-navbar .nav-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  padding: 8px 16px !important;
  border-radius: 999px;
  transition: var(--trans);
}

.site-navbar .nav-link:hover {
  color: var(--primary);
  background: rgba(30, 95, 91, 0.05);
}

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

.site-navbar .navbar-cta {
  height: 40px;
  line-height: 40px;
  padding: 0 20px !important;
  border-radius: 999px;
  background: var(--primary) !important;
  color: #fff !important;
  font-size: 14px;
  font-weight: 600;
  border: none;
  white-space: nowrap;
  transition: var(--trans);
}

.site-navbar .navbar-cta:hover {
  background: var(--primary-dark) !important;
  color: #fff !important;
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(20, 67, 63, 0.22);
}

.site-navbar .navbar-toggler {
  border: none;
  padding: 0;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: none;
  outline: none;
}

.site-navbar .navbar-toggler:focus {
  box-shadow: 0 0 0 3px rgba(30, 95, 91, 0.25);
}

.site-navbar .navbar-toggler-icon {
  width: 18px;
  height: 14px;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(30,95,91,1)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2.5' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

@media (max-width: 991px) {
  .site-navbar {
    top: 12px;
    border-radius: 24px;
    padding: 10px 16px !important;
    width: calc(100% - 24px);
  }

  .site-navbar .navbar-collapse {
    background: rgba(255, 255, 255, 0.98);
    border-radius: 20px;
    padding: 20px;
    margin-top: 12px;
    box-shadow: var(--shadow-hover);
    border: 1px solid rgba(0, 0, 0, 0.04);
  }

  .site-navbar .navbar-nav {
    gap: 0;
    margin-bottom: 12px;
  }

  .site-navbar .nav-link {
    font-size: 16px !important;
    padding: 12px 16px !important;
    border-radius: 12px;
  }

  .site-navbar .navbar-cta {
    width: 100%;
    text-align: center;
    height: 44px;
    line-height: 44px;
  }
}

/* ===== 分类页头 Hero ===== */
.category-hero {
  position: relative;
  background-size: cover;
  background-position: center;
  background-color: var(--primary-dark);
  padding: 180px 0 100px;
  color: #fff;
  min-height: 480px;
  display: flex;
  align-items: center;
}

.category-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(20, 67, 63, 0.92) 0%, rgba(30, 95, 91, 0.78) 48%, rgba(30, 95, 91, 0.42) 100%);
  z-index: 1;
}

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

.category-hero .breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.65);
  margin-bottom: 28px;
  padding: 0;
  background: none;
}

.category-hero .breadcrumb a {
  color: rgba(255, 255, 255, 0.75);
  border-bottom: 1px solid rgba(255, 255, 255, 0.4);
  transition: var(--trans);
}

.category-hero .breadcrumb a:hover {
  color: #fff;
  border-color: #fff;
}

.category-hero .breadcrumb-span {
  margin: 0 4px;
  color: rgba(255, 255, 255, 0.4);
}

.category-hero h1 {
  font-size: 48px;
  font-weight: 800;
  letter-spacing: 0.02em;
  line-height: 1.2;
  margin: 0 0 16px;
  border-left: 4px solid var(--accent);
  padding-left: 20px;
}

.category-hero .hero-sub {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.78);
  max-width: 560px;
  margin: 0;
  line-height: 1.7;
}

@media (max-width: 991px) {
  .category-hero {
    padding: 150px 0 72px;
    min-height: auto;
  }

  .category-hero h1 {
    font-size: 36px;
  }
}

@media (max-width: 767px) {
  .category-hero {
    padding: 140px 0 56px;
  }

  .category-hero h1 {
    font-size: 30px;
    padding-left: 14px;
  }

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

/* ===== 分类内容主体 ===== */
.category-body {
  padding: 96px 0 64px;
  background: var(--bg);
}

.category-main-col .content-block {
  margin-bottom: 48px;
}

.category-main-col .content-block h2 {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.3;
  margin: 0 0 18px;
  color: var(--text);
  padding-left: 16px;
  border-left: 4px solid var(--accent);
}

.category-main-col .content-block p {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin: 0 0 16px;
}

.content-image {
  width: 100%;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin: 0 0 20px 0;
  object-fit: cover;
  max-height: 340px;
}

.check-list {
  list-style: none;
  padding: 0;
  margin: 8px 0 0;
}

.check-list li {
  position: relative;
  padding: 10px 0 10px 28px;
  font-size: 15px;
  color: var(--text);
  border-bottom: 1px solid rgba(30, 95, 91, 0.08);
}

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

.check-list li::before {
  content: "\f00c";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  position: absolute;
  left: 0;
  top: 10px;
  width: 18px;
  height: 18px;
  color: var(--primary);
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ===== 侧边信息卡 ===== */
.category-side-col {
  position: sticky;
  top: 110px;
}

.side-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  margin-bottom: 24px;
}

.side-card.about-card {
  background: var(--primary-light);
  box-shadow: none;
}

.side-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  background: rgba(30, 95, 91, 0.1);
  padding: 4px 14px;
  border-radius: 999px;
  margin-bottom: 16px;
  letter-spacing: 0.04em;
}

.side-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 10px;
}

.side-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0;
}

.related-card ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.related-card ul li {
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}

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

.related-card ul li:first-child {
  padding-top: 4px;
}

.related-card ul a {
  color: var(--primary);
  font-weight: 600;
  font-size: 15px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.related-card ul a i {
  font-size: 13px;
  transition: transform 0.25s ease;
}

.related-card ul a:hover {
  color: var(--accent);
}

.related-card ul a:hover i {
  transform: translateX(4px);
}

@media (max-width: 991px) {
  .category-body {
    padding: 64px 0 48px;
  }

  .category-side-col {
    position: static;
    margin-top: 8px;
  }
}

/* ===== 分类内部关联区 ===== */
.category-links-section {
  padding: 40px 0 96px;
  background: var(--bg);
}

.category-links-section h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 28px;
  padding-left: 16px;
  border-left: 4px solid var(--accent);
}

.link-row {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: 16px;
  transition: var(--trans);
}

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

.link-row a {
  display: flex;
  align-items: center;
  padding: 28px 32px;
  gap: 20px;
}

.link-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  min-width: 180px;
  line-height: 1.4;
}

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

.link-desc {
  font-size: 14px;
  color: var(--text-secondary);
  flex: 1;
  line-height: 1.5;
}

.link-arrow {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 15px;
  transition: var(--trans);
  flex-shrink: 0;
}

.link-row a:hover .link-arrow {
  background: var(--accent);
  color: #fff;
  transform: translateX(4px);
}

@media (max-width: 767px) {
  .category-links-section {
    padding: 24px 0 64px;
  }

  .link-row a {
    flex-direction: column;
    align-items: flex-start;
    padding: 22px 24px;
    gap: 8px;
  }

  .link-title {
    min-width: 0;
    font-size: 16px;
  }

  .link-desc {
    font-size: 13px;
  }

  .link-arrow {
    width: 38px;
    height: 38px;
    position: absolute;
    right: 20px;
    top: 20px;
  }

  .link-row {
    position: relative;
  }
}

/* ===== FAQ区 ===== */
.faq-section {
  padding: 96px 0;
  background: var(--white);
}

.faq-heading {
  max-width: 440px;
}

.faq-heading .section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-light);
  padding: 4px 14px;
  border-radius: 999px;
  margin-bottom: 14px;
  letter-spacing: 0.04em;
}

.faq-heading h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 12px;
  line-height: 1.3;
}

.faq-heading p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0;
}

.faq-accordion {
  max-width: 680px;
}

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

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

.faq-question {
  width: 100%;
  text-align: left;
  padding: 20px 0;
  background: none;
  border: none;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  transition: var(--trans);
  gap: 16px;
}

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

.faq-question::after {
  content: "\002B";
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--primary);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 19px;
  line-height: 1;
  font-weight: 400;
  transition: var(--trans);
  flex-shrink: 0;
  font-family: sans-serif;
}

.faq-question[aria-expanded="true"] {
  color: var(--primary);
}

.faq-question[aria-expanded="true"]::after {
  transform: rotate(45deg);
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.faq-answer {
  padding: 0 0 20px;
}

.faq-answer p {
  background: #FBF8F2;
  padding: 16px 20px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.75;
  margin: 0;
}

@media (max-width: 991px) {
  .faq-section {
    padding: 64px 0;
  }

  .faq-heading {
    margin-bottom: 32px;
    max-width: 100%;
  }
}

/* ===== CTA + 表单区 ===== */
.cta-section {
  padding: 48px 0 96px;
  background: var(--bg);
}

.cta-card {
  background: var(--primary-dark);
  border-radius: 20px;
  padding: 64px 48px;
  text-align: center;
  color: #fff;
  max-width: 1000px;
  margin: 0 auto;
  position: relative;
  overflow: hidden;
}

.cta-card::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -80px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.cta-card h2 {
  font-size: 26px;
  font-weight: 700;
  margin: 0 0 10px;
  line-height: 1.3;
}

.cta-card .cta-sub {
  color: rgba(255, 255, 255, 0.7);
  font-size: 14px;
  margin: 0 0 36px;
}

.cta-form-inner {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
}

.cta-form-inner .form-control {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: #fff;
  height: 46px;
  border-radius: 10px;
  padding: 0 18px;
  min-width: 160px;
  flex: 1;
  max-width: 220px;
  transition: var(--trans);
}

.cta-form-inner .form-control::placeholder {
  color: #A8CBBF;
}

.cta-form-inner .form-control:focus {
  border-color: var(--accent);
  background: rgba(255, 255, 255, 0.18);
  box-shadow: 0 0 0 3px rgba(201, 124, 58, 0.25);
  color: #fff;
  outline: none;
}

.cta-form-inner .form-textarea {
  height: 46px;
  resize: none;
  padding: 10px 18px;
  border-radius: 10px;
  flex: 1.2;
  max-width: 260px;
}

.cta-form-inner .btn-accent {
  background: var(--accent) !important;
  color: #fff !important;
  border: none;
  border-radius: 10px;
  height: 46px;
  padding: 0 28px;
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  transition: var(--trans);
  flex-shrink: 0;
}

.cta-form-inner .btn-accent:hover {
  background: #b56a2c !important;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

@media (max-width: 767px) {
  .cta-section {
    padding: 32px 0 64px;
  }

  .cta-card {
    padding: 40px 24px;
    border-radius: 16px;
  }

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

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

  .cta-form-inner .form-control,
  .cta-form-inner .form-textarea {
    max-width: none;
    width: 100%;
  }

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

/* ===== 页脚 ===== */
.site-footer {
  background: var(--footer-bg);
  border-top: 3px solid var(--accent);
  padding: 64px 0 0;
  color: var(--text-light);
}

.site-footer .container {
  max-width: 1200px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 48px;
}

.footer-brand {
  font-size: 22px;
  font-weight: 800;
  color: #fff;
  letter-spacing: 0.02em;
  margin-bottom: 12px;
}

.footer-brand em {
  font-style: normal;
  color: var(--accent);
}

.footer-desc {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
  margin: 0;
  max-width: 280px;
}

.footer-title {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin: 0 0 16px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  font-size: 14px;
  color: var(--text-light);
  transition: var(--trans);
}

.footer-links a:hover {
  color: #fff;
  padding-left: 4px;
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text-light);
}

.contact-item i {
  width: 14px;
  color: var(--accent);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 20px 0;
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.74);
}

@media (max-width: 991px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 767px) {
  .site-footer {
    padding: 48px 0 0;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: center;
    gap: 6px;
    text-align: center;
  }
}

/* roulang page: article */
:root {
            --primary: #1E5F5B;
            --primary-dark: #14433F;
            --primary-light: #E9F2F0;
            --accent: #C97C3A;
            --accent-dark: #b5632a;
            --accent-light: #FAF0E3;
            --bg-body: #F5F1EA;
            --card-bg: #FFFFFF;
            --text-body: #22302F;
            --text-muted: #6B7B78;
            --text-light: #9AA8A6;
            --border: #E3DCCF;
            --footer-bg: #132120;
            --radius-lg: 16px;
            --radius-md: 10px;
            --radius-sm: 8px;
            --shadow: 0 4px 16px rgba(20, 45, 43, 0.08);
            --shadow-hover: 0 12px 32px rgba(20, 45, 43, 0.14);
            --transition: 0.25s ease-out;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', 'Source Han Sans SC', sans-serif;
            background: var(--bg-body);
            color: var(--text-body);
            font-size: 15px;
            line-height: 1.7;
            overflow-x: hidden;
        }

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

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

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

        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* ===== 导航 ===== */
        .site-navbar {
            position: fixed;
            top: 16px;
            left: 50%;
            transform: translateX(-50%);
            width: calc(100% - 32px);
            max-width: 1200px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid rgba(0, 0, 0, 0.05);
            box-shadow: 0 8px 30px rgba(20, 45, 43, 0.12);
            z-index: 1080;
            padding: 8px 0;
            min-height: 0;
        }

        .site-navbar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-left: 24px;
            padding-right: 24px;
            flex-wrap: nowrap;
        }

        .navbar-brand {
            font-size: 20px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.02em;
            display: inline-flex;
            align-items: center;
            gap: 2px;
            white-space: nowrap;
        }

        .navbar-brand em {
            font-style: normal;
            color: var(--accent);
        }

        .navbar-toggler {
            border: none;
            padding: 8px;
            border-radius: 12px;
            background: transparent;
            box-shadow: none !important;
        }

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

        .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(30,95,91,1)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        .navbar-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .site-navbar .nav-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-body);
            padding: 8px 16px !important;
            border-radius: 999px;
            transition: all var(--transition);
        }

        .site-navbar .nav-link:hover {
            color: var(--primary);
            background: rgba(233, 242, 240, 0.6);
        }

        .site-navbar .nav-link.active {
            color: var(--primary);
            background: var(--primary-light);
        }

        .navbar-cta {
            height: 40px;
            padding: 0 20px;
            border-radius: 999px;
            background: var(--primary);
            border: none;
            color: #fff !important;
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            white-space: nowrap;
            transition: all var(--transition);
        }

        .navbar-cta:hover {
            background: var(--primary-dark);
            color: #fff !important;
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(30, 95, 91, 0.3);
        }

        /* ===== 按钮 ===== */
        .btn {
            border-radius: var(--radius-md);
            font-weight: 600;
            transition: all var(--transition);
            padding: 10px 24px;
        }

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

        .btn-primary:hover,
        .btn-primary:focus {
            background-color: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            box-shadow: 0 6px 16px rgba(30, 95, 91, 0.25);
            transform: translateY(-2px);
        }

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

        .btn-accent:hover,
        .btn-accent:focus {
            background-color: var(--accent-dark);
            border-color: var(--accent-dark);
            color: #fff;
            box-shadow: 0 6px 16px rgba(201, 124, 58, 0.3);
            transform: translateY(-2px);
        }

        /* ===== 文章头部区 ===== */
        .post-hero {
            padding: 180px 0 56px;
            background: var(--bg-body);
            border-top: 4px solid var(--primary);
            border-bottom: 1px solid var(--border);
        }

        .post-hero-inner {
            max-width: 860px;
        }

        .post-meta {
            margin-bottom: 16px;
        }

        .post-category-badge {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary-dark);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 999px;
            letter-spacing: 0.02em;
        }

        .post-title {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-body);
            margin: 0 0 16px;
            letter-spacing: 0.01em;
        }

        .post-meta-info {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .post-meta-info span+span::before {
            content: '|';
            margin-right: 8px;
            color: var(--border);
            font-weight: 400;
        }

        /* ===== 面包屑 ===== */
        .breadcrumb-wrap {
            padding: 20px 0;
            background: var(--bg-body);
            border-bottom: 1px solid var(--border);
        }

        .breadcrumb {
            margin: 0;
            padding: 0;
            list-style: none;
            font-size: 13px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
        }

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

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

        .breadcrumb li+li::before {
            content: '/';
            margin: 0 10px;
            color: #C5CECB;
        }

        .breadcrumb .active {
            color: var(--text-muted);
            display: inline-block;
            max-width: 240px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
            vertical-align: bottom;
        }

        /* ===== 正文阅读区 ===== */
        .post-main {
            padding: 56px 0 64px;
        }

        .post-article-wrap {
            max-width: 760px;
            margin: 0 auto;
        }

        .post-content {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            padding: 48px 56px;
            box-shadow: var(--shadow);
            line-height: 1.8;
        }

        .post-content h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-body);
            margin: 36px 0 14px;
            line-height: 1.4;
        }

        .post-content h2:first-child {
            margin-top: 0;
        }

        .post-content h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-body);
            margin: 28px 0 12px;
            line-height: 1.4;
        }

        .post-content p {
            font-size: 16px;
            line-height: 1.8;
            margin-bottom: 20px;
            color: var(--text-body);
        }

        .post-content ul {
            padding-left: 24px;
            margin-bottom: 20px;
            list-style: none;
        }

        .post-content ul li {
            position: relative;
            padding-left: 12px;
            margin-bottom: 10px;
            font-size: 15px;
            line-height: 1.7;
        }

        .post-content ul li::before {
            content: '';
            position: absolute;
            left: -8px;
            top: 10px;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--primary);
        }

        .post-content ol {
            padding-left: 24px;
            margin-bottom: 20px;
        }

        .post-content ol li {
            margin-bottom: 10px;
            font-size: 15px;
            line-height: 1.7;
        }

        .post-content blockquote {
            background: var(--accent-light);
            border-left: 4px solid var(--accent);
            padding: 20px 24px;
            font-style: italic;
            font-size: 15px;
            color: var(--text-body);
            border-radius: 0 8px 8px 0;
            margin-bottom: 24px;
        }

        .post-content blockquote p {
            font-size: 15px;
            margin-bottom: 0;
        }

        .post-content img {
            width: 100%;
            max-height: 540px;
            object-fit: cover;
            border-radius: 12px;
            margin-bottom: 24px;
        }

        .post-content pre {
            background: #F2F4F3;
            padding: 16px 20px;
            font-size: 13px;
            font-family: 'JetBrains Mono', Consolas, 'Courier New', monospace;
            border-radius: 8px;
            overflow-x: auto;
            margin-bottom: 24px;
            line-height: 1.6;
        }

        .post-content code {
            background: #F0F2F1;
            padding: 2px 8px;
            border-radius: 6px;
            font-size: 13px;
            font-family: 'JetBrains Mono', Consolas, monospace;
        }

        .post-content pre code {
            background: transparent;
            padding: 0;
        }

        .post-content a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

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

        .post-content table {
            width: 100%;
            border-collapse: collapse;
            margin-bottom: 24px;
            font-size: 14px;
        }

        .post-content table th,
        .post-content table td {
            border: 1px solid var(--border);
            padding: 10px 14px;
        }

        .post-content table th {
            background: var(--primary-light);
            font-weight: 600;
            color: var(--text-body);
        }

        .post-content hr {
            border: 0;
            border-top: 1px solid var(--border);
            margin: 32px 0;
        }

        /* ===== 标签区 ===== */
        .post-tags {
            max-width: 760px;
            margin: 24px auto 0;
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        .tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary-dark);
            font-size: 13px;
            padding: 6px 14px;
            border-radius: 6px;
            font-weight: 500;
            transition: all var(--transition);
        }

        .tag:hover {
            background: var(--primary);
            color: #fff;
        }

        .post-divider {
            max-width: 760px;
            margin: 32px auto 0;
            border: 0;
            border-top: 1px solid var(--border);
        }

        /* ===== 相关推荐区 ===== */
        .related-posts {
            margin-top: 56px;
        }

        .section-title {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            padding-left: 16px;
            border-left: 4px solid var(--accent);
            margin-bottom: 24px;
            line-height: 1.3;
        }

        .related-card {
            display: block;
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            overflow: hidden;
            text-decoration: none;
            height: 100%;
            transition: all var(--transition);
        }

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

        .related-card img {
            width: 100%;
            height: 170px;
            object-fit: cover;
            display: block;
        }

        .related-body {
            display: block;
            padding: 20px;
        }

        .related-title {
            display: block;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-body);
            margin-bottom: 8px;
            line-height: 1.4;
            transition: color var(--transition);
        }

        .related-card:hover .related-title {
            color: var(--primary);
        }

        .related-summary {
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ===== 返回入口 ===== */
        .post-back {
            margin-top: 40px;
        }

        .post-back a {
            color: var(--primary);
            font-size: 14px;
            text-decoration: none;
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all var(--transition);
            padding: 8px 0;
        }

        .post-back a:hover {
            color: var(--accent);
            gap: 12px;
        }

        /* ===== 内容未找到 ===== */
        .post-not-found {
            max-width: 760px;
            margin: 60px auto;
            text-align: center;
            padding: 56px 40px;
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
        }

        .post-not-found .not-found-icon {
            font-size: 48px;
            color: var(--accent);
            margin-bottom: 16px;
        }

        .post-not-found p {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-body);
            margin-bottom: 24px;
        }

        .post-not-found a {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            padding: 12px 28px;
            border-radius: var(--radius-md);
            text-decoration: none;
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition);
        }

        .post-not-found a:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(30, 95, 91, 0.3);
        }

        /* ===== CTA 区 ===== */
        .cta-section {
            padding: 24px 0 80px;
        }

        .cta-box {
            background: var(--primary-dark);
            border-radius: 20px;
            padding: 48px 56px;
            color: #fff;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-box::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(201, 124, 58, 0.12);
        }

        .cta-box h2 {
            font-size: 26px;
            font-weight: 700;
            margin-bottom: 8px;
            letter-spacing: 0.02em;
        }

        .cta-box>p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 24px;
        }

        .cta-form {
            position: relative;
            z-index: 1;
        }

        .cta-form-row {
            display: flex;
            gap: 12px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .cta-form-row .form-control {
            width: 200px;
            height: 46px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-radius: var(--radius-sm);
            color: #fff;
            font-size: 14px;
            transition: all var(--transition);
        }

        .cta-form-row .form-control::placeholder {
            color: #A8CBBF;
        }

        .cta-form-row .form-control:focus {
            background: rgba(255, 255, 255, 0.18);
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(201, 124, 58, 0.25);
            color: #fff;
        }

        .cta-form-row .btn {
            height: 46px;
            min-width: 120px;
            border-radius: var(--radius-sm);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--footer-bg);
            border-top: 3px solid var(--accent);
            padding-top: 56px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }

        .footer-brand em {
            font-style: normal;
            color: var(--accent);
        }

        .footer-desc {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            max-width: 280px;
        }

        .footer-title {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            color: #9AA8A6;
            text-decoration: none;
            font-size: 14px;
            transition: all var(--transition);
            display: inline-block;
        }

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

        .footer-contact {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .contact-item {
            font-size: 14px;
            color: #9AA8A6;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .contact-item i {
            color: var(--accent);
            width: 16px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 16px 0;
            text-align: center;
            color: rgba(255, 255, 255, 0.74);
            font-size: 13px;
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 8px 16px;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1199.98px) {
            .post-hero {
                padding-top: 164px;
            }
        }

        @media (max-width: 991.98px) {
            .site-navbar {
                top: 0;
                width: 100%;
                max-width: 100%;
                border-radius: 0;
                padding: 8px 16px;
            }

            .site-navbar .container {
                padding-left: 0;
                padding-right: 0;
            }

            .navbar-collapse {
                background: rgba(255, 255, 255, 0.97);
                border-radius: var(--radius-lg);
                padding: 20px;
                margin-top: 12px;
                box-shadow: var(--shadow);
                border: 1px solid var(--border);
            }

            .navbar-nav {
                gap: 4px;
            }

            .navbar-nav .nav-link {
                padding: 12px 16px !important;
                border-radius: var(--radius-md);
                font-size: 15px;
            }

            .navbar-cta {
                margin-top: 10px;
                width: 100%;
                height: 44px;
            }

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

        @media (max-width: 767.98px) {
            body {
                font-size: 14px;
            }

            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .post-hero {
                padding: 140px 0 40px;
            }

            .post-title {
                font-size: 26px;
                line-height: 1.3;
            }

            .post-main {
                padding: 32px 0 48px;
            }

            .post-content {
                padding: 28px 20px;
                border-radius: var(--radius-lg);
            }

            .post-content h2 {
                font-size: 21px;
                margin-top: 28px;
            }

            .post-content h3 {
                font-size: 18px;
            }

            .post-meta-info {
                font-size: 12px;
            }

            .related-posts {
                margin-top: 40px;
            }

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

            .cta-box {
                padding: 32px 20px;
                border-radius: var(--radius-lg);
            }

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

            .cta-form-row {
                flex-direction: column;
                gap: 10px;
            }

            .cta-form-row .form-control,
            .cta-form-row .btn {
                width: 100%;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 575.98px) {
            .breadcrumb .active {
                max-width: 160px;
            }

            .post-not-found {
                padding: 40px 20px;
            }
        }

        /* ===== Bootstrap 覆盖 ===== */
        .navbar {
            padding-top: 0;
            padding-bottom: 0;
        }

        .navbar-toggler:focus {
            box-shadow: none;
        }

        .form-control {
            font-size: 14px;
        }

        .form-control:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(201, 124, 58, 0.15);
        }