/* roulang page: index */
:root {
  --primary: #0a2540;
  --primary-deep: #071e33;
  --primary-light: #123a5c;
  --accent: #14b8a6;
  --accent-dark: #0e9d8e;
  --accent-light: #e0f7f4;
  --text: #1e2b3a;
  --text-soft: #5d6f7e;
  --text-light: #8fa1af;
  --bg: #f5f8fa;
  --bg-deep: #eaf0f5;
  --white: #ffffff;
  --border: #e4eaf0;
  --radius: 20px;
  --radius-sm: 12px;
  --radius-lg: 28px;
  --shadow-sm: 0 4px 16px rgba(10, 37, 64, 0.06);
  --shadow: 0 14px 42px rgba(10, 37, 64, 0.09);
  --shadow-hover: 0 22px 54px rgba(10, 37, 64, 0.16);
  --container: 1240px;
  --transition: all 0.32s cubic-bezier(0.22, 0.61, 0.36, 1);
  --font-default: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

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

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

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

ul,
ol {
  list-style: none;
}

button,
input,
textarea,
select {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
  background: none;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ========== 顶部导航 ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  max-width: 1360px;
  margin: 0 auto;
  padding: 0 32px;
  height: 78px;
}

.nav-left {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-right {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 6px;
}

.logo-center {
  text-align: center;
  padding: 0 12px;
}

.logo-center a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 26px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), #0aa6c4);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 18px;
  box-shadow: 0 6px 18px rgba(20, 184, 166, 0.3);
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 16px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-soft);
  transition: var(--transition);
  position: relative;
}

.nav-link i {
  font-size: 13px;
  opacity: 0.8;
}

.nav-link:hover {
  color: var(--primary);
  background: var(--bg-deep);
}

.nav-link.active {
  color: var(--accent-dark);
  background: var(--accent-light);
}

.header-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 20px;
  border-radius: 50px;
  background: var(--primary);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
  box-shadow: 0 6px 20px rgba(10, 37, 64, 0.18);
  transition: var(--transition);
}

.header-cta:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
  box-shadow: 0 10px 26px rgba(10, 37, 64, 0.24);
  color: #fff;
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--bg-deep);
  color: var(--primary);
  font-size: 18px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.menu-toggle:hover {
  background: var(--accent-light);
  color: var(--accent-dark);
}

/* ========== Hero ========== */
.hero {
  position: relative;
  background: linear-gradient(135deg, rgba(7, 30, 51, 0.84), rgba(11, 42, 68, 0.72)), url('/assets/images/backpic/back-1.png') center / cover no-repeat;
  padding: 128px 0 112px;
  text-align: center;
  color: #fff;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -120px;
  right: -80px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: rgba(20, 184, 166, 0.16);
  filter: blur(60px);
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -140px;
  left: -60px;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: rgba(10, 166, 196, 0.15);
  filter: blur(70px);
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 860px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 50px;
  padding: 8px 18px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1.5px;
  color: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  margin-bottom: 28px;
}

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

.hero h1 {
  font-size: 56px;
  line-height: 1.2;
  font-weight: 800;
  margin-bottom: 20px;
  letter-spacing: -1px;
}

.hero h1 span {
  color: var(--accent);
  position: relative;
}

.hero-desc {
  font-size: 18px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.84);
  margin-bottom: 38px;
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}

.hero-btns {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--accent);
  color: #fff;
  padding: 14px 32px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 700;
  box-shadow: 0 10px 30px rgba(20, 184, 166, 0.35);
  transition: var(--transition);
}

.btn-primary:hover {
  background: var(--accent-dark);
  transform: translateY(-3px);
  box-shadow: 0 16px 40px rgba(20, 184, 166, 0.42);
  color: #fff;
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: transparent;
  color: #fff;
  padding: 13px 30px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 700;
  border: 2px solid rgba(255, 255, 255, 0.38);
  transition: var(--transition);
}

.btn-outline:hover {
  border-color: #fff;
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-3px);
  color: #fff;
}

.hero-wave {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  line-height: 0;
  z-index: 2;
}

.hero-wave svg {
  width: 100%;
  height: 70px;
  display: block;
}

/* ========== 关于板块 ========== */
.section {
  padding: 92px 0;
}

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

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 56px;
}

.section-tag {
  display: inline-block;
  background: var(--accent-light);
  color: var(--accent-dark);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  padding: 7px 18px;
  border-radius: 50px;
  margin-bottom: 14px;
}

.section-head h2 {
  font-size: 38px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.3;
  margin-bottom: 14px;
}

.section-head p {
  font-size: 16px;
  color: var(--text-soft);
  line-height: 1.8;
}

.about-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 54px;
  align-items: center;
}

.about-content h3 {
  font-size: 28px;
  color: var(--primary);
  line-height: 1.4;
  margin-bottom: 18px;
  font-weight: 800;
}

.about-content p {
  color: var(--text-soft);
  font-size: 16px;
  line-height: 1.95;
  margin-bottom: 14px;
}

.about-points {
  margin-top: 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.about-point {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px;
  transition: var(--transition);
}

.about-point:hover {
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}

.about-point-icon {
  flex-shrink: 0;
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: var(--accent-light);
  color: var(--accent-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
}

.about-point h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--primary);
}

.about-point p {
  font-size: 13px;
  color: var(--text-soft);
  margin: 2px 0 0;
  line-height: 1.5;
}

.about-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
}

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

.about-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(7, 30, 51, 0.55));
}

.about-image-badge {
  position: absolute;
  bottom: 24px;
  left: 24px;
  z-index: 3;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-radius: var(--radius-sm);
  padding: 12px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow-sm);
}

.about-image-badge i {
  color: var(--accent-dark);
  font-size: 20px;
}

.about-image-badge span {
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
}

/* ========== 特点卡片 ========== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.feature-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 38px 30px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), #0aa6c4);
  opacity: 0;
  transition: var(--transition);
}

.feature-card:hover::before {
  opacity: 1;
}

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

.feature-icon {
  width: 58px;
  height: 58px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 22px;
  transition: var(--transition);
}

.feature-icon.i1 {
  background: #eff8ff;
  color: #0f7bc4;
}

.feature-icon.i2 {
  background: var(--accent-light);
  color: var(--accent-dark);
}

.feature-icon.i3 {
  background: #fff4e6;
  color: #e8892b;
}

.feature-card h3 {
  font-size: 20px;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 12px;
}

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

/* ========== 分类入口 ========== */
.category-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

.category-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  min-height: 340px;
  display: flex;
  align-items: flex-end;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

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

.category-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

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

.category-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7, 30, 51, 0.12), rgba(7, 30, 51, 0.82));
}

.category-card-body {
  position: relative;
  z-index: 2;
  padding: 32px 30px;
  color: #fff;
  width: 100%;
}

.category-card-body h3 {
  font-size: 26px;
  font-weight: 800;
  margin-bottom: 8px;
}

.category-card-body p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 16px;
  max-width: 420px;
}

.category-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.3);
  padding: 10px 20px;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 700;
  backdrop-filter: blur(6px);
  transition: var(--transition);
}

.category-card-body:hover .category-link {
  background: var(--accent);
  border-color: var(--accent);
}

/* ========== 资讯板块 ========== */
.news-wrap {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 30px;
  align-items: start;
}

.news-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.news-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 26px;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.news-card:hover {
  box-shadow: var(--shadow);
  transform: translateX(4px);
  border-color: rgba(20, 184, 166, 0.35);
}

.news-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--text-light);
}

.news-meta .badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: var(--accent-light);
  color: var(--accent-dark);
  padding: 4px 14px;
  border-radius: 50px;
  font-size: 12px;
  font-weight: 700;
}

.news-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.5;
}

.news-card h3 a:hover {
  color: var(--accent-dark);
}

.news-card p {
  font-size: 14px;
  color: var(--text-soft);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-card time {
  font-size: 13px;
  color: var(--text-light);
  display: flex;
  align-items: center;
  gap: 6px;
}

.news-empty {
  background: var(--white);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  padding: 48px 24px;
  text-align: center;
  color: var(--text-light);
  font-size: 15px;
}

.news-aside {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.aside-card {
  background: var(--primary);
  border-radius: var(--radius);
  padding: 30px 26px;
  color: #fff;
  position: relative;
  overflow: hidden;
}

.aside-card::after {
  content: '';
  position: absolute;
  top: -40px;
  right: -40px;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: rgba(20, 184, 166, 0.25);
}

.aside-card h4 {
  font-size: 18px;
  font-weight: 800;
  margin-bottom: 10px;
  position: relative;
  z-index: 2;
}

.aside-card p {
  font-size: 14px;
  opacity: 0.82;
  line-height: 1.7;
  margin-bottom: 18px;
  position: relative;
  z-index: 2;
}

.aside-card .btn-small {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  padding: 10px 20px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 700;
  position: relative;
  z-index: 2;
  transition: var(--transition);
}

.aside-card .btn-small:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
}

.aside-tips {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

.aside-tips h4 {
  font-size: 16px;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.aside-tips h4 i {
  color: var(--accent-dark);
}

.aside-tips ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.aside-tips li {
  display: flex;
  gap: 10px;
  font-size: 14px;
  color: var(--text-soft);
  line-height: 1.6;
}

.aside-tips li i {
  color: var(--accent);
  margin-top: 4px;
  font-size: 12px;
}

/* ========== 数据统计 ========== */
.stats-section {
  background: linear-gradient(135deg, var(--primary-deep), var(--primary-light));
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}

.stats-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('/assets/images/backpic/back-2.png') center / cover no-repeat;
  opacity: 0.12;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  position: relative;
  z-index: 2;
}

.stat-item {
  text-align: center;
  padding: 30px 16px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius);
  transition: var(--transition);
}

.stat-item:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-4px);
}

.stat-number {
  font-size: 48px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1.1;
  margin-bottom: 6px;
  font-variant-numeric: tabular-nums;
}

.stat-label {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.74);
  font-weight: 500;
}

/* ========== 流程板块 ========== */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  counter-reset: process;
}

.process-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 34px 24px;
  text-align: center;
  position: relative;
  transition: var(--transition);
}

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

.process-num {
  width: 44px;
  height: 44px;
  margin: 0 auto 18px;
  border-radius: 50%;
  background: var(--accent-light);
  color: var(--accent-dark);
  font-size: 18px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.process-num::after {
  content: '';
  position: absolute;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent);
  bottom: -4px;
  left: 50%;
  transform: translateX(-50%);
}

.process-card h3 {
  font-size: 17px;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 8px;
}

.process-card p {
  font-size: 14px;
  color: var(--text-soft);
  line-height: 1.65;
}

/* ========== FAQ ========== */
.faq-wrap {
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 16px;
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: rgba(20, 184, 166, 0.4);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 26px;
  font-size: 16px;
  font-weight: 700;
  color: var(--primary);
  cursor: pointer;
  text-align: left;
  background: var(--white);
  transition: var(--transition);
}

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

.faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--bg-deep);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  color: var(--accent-dark);
  flex-shrink: 0;
  transition: var(--transition);
}

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

.faq-answer {
  padding: 0 26px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
  color: var(--text-soft);
  font-size: 15px;
  line-height: 1.85;
}

.faq-item.open .faq-answer {
  max-height: 300px;
  padding-bottom: 24px;
}

/* ========== CTA ========== */
.cta-section {
  padding: 90px 0;
  background: url('/assets/images/backpic/back-3.png') center / cover no-repeat;
  position: relative;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(7, 30, 51, 0.76);
}

.cta-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 680px;
  margin: 0 auto;
  color: #fff;
}

.cta-inner h2 {
  font-size: 38px;
  font-weight: 800;
  margin-bottom: 16px;
}

.cta-inner p {
  font-size: 17px;
  opacity: 0.84;
  margin-bottom: 28px;
  line-height: 1.8;
}

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

/* ========== 页脚 ========== */
.site-footer {
  background: var(--primary-deep);
  color: #a8b8c7;
  padding: 70px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 50px;
  padding-bottom: 44px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand .logo-center {
  text-align: left;
  padding: 0;
  margin-bottom: 16px;
}

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

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  opacity: 0.72;
  margin-bottom: 20px;
}

.footer-social {
  display: flex;
  gap: 10px;
}

.footer-social a {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #a8b8c7;
  font-size: 15px;
  transition: var(--transition);
}

.footer-social a:hover {
  background: var(--accent);
  color: #fff;
  transform: translateY(-3px);
}

.footer-col h4 {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 18px;
}

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

.footer-col a {
  font-size: 14px;
  opacity: 0.72;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.footer-col a:hover {
  opacity: 1;
  color: var(--accent);
  padding-left: 4px;
}

.footer-contact li {
  display: flex;
  gap: 10px;
  font-size: 14px;
  opacity: 0.72;
  margin-bottom: 10px;
}

.footer-contact i {
  color: var(--accent);
  margin-top: 3px;
  width: 16px;
  text-align: center;
}

.footer-bottom {
  padding: 22px 0;
  text-align: center;
  font-size: 13px;
  opacity: 0.6;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-bottom span {
  color: rgba(255, 255, 255, 0.4);
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .hero {
    padding: 96px 0 84px;
  }
  .hero h1 {
    font-size: 44px;
  }
  .news-wrap {
    grid-template-columns: 1fr;
  }
  .features-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .header-inner {
    grid-template-columns: auto 1fr auto;
    height: 66px;
    padding: 0 18px;
  }
  .logo-center {
    order: 2;
  }
  .logo-center a {
    font-size: 19px;
  }
  .logo-icon {
    width: 32px;
    height: 32px;
    font-size: 14px;
  }
  .menu-toggle {
    display: flex;
    order: 1;
  }
  .nav-right {
    order: 3;
  }
  .nav-left,
  .nav-right {
    display: none;
    position: absolute;
    top: 66px;
    left: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    background: var(--white);
    padding: 16px;
    box-shadow: 0 18px 40px rgba(10, 37, 64, 0.14);
    border-radius: 0 0 16px 16px;
    z-index: 999;
    width: 100%;
  }
  .nav-right {
    justify-content: flex-start;
  }
  .nav-left.open,
  .nav-right.open {
    display: flex;
  }
  .nav-link {
    padding: 12px 16px;
    border-radius: 10px;
    font-size: 15px;
  }
  .header-cta {
    display: none;
  }
  .hero {
    padding: 76px 0 66px;
  }
  .hero h1 {
    font-size: 34px;
  }
  .hero-desc {
    font-size: 16px;
  }
  .hero-badge {
    font-size: 12px;
  }
  .hero-btns {
    flex-direction: column;
    align-items: center;
  }
  .btn-primary,
  .btn-outline {
    width: 100%;
    justify-content: center;
  }
  .section {
    padding: 64px 0;
  }
  .section-head h2 {
    font-size: 28px;
  }
  .about-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .category-grid {
    grid-template-columns: 1fr;
  }
  .category-card {
    min-height: 280px;
  }
  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
  .stat-number {
    font-size: 36px;
  }
  .process-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .faq-question {
    padding: 18px 18px;
    font-size: 15px;
  }
  .cta-section {
    padding: 64px 0;
  }
  .cta-inner h2 {
    font-size: 28px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .footer-bottom {
    font-size: 12px;
  }
  .about-points {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }
  .hero h1 {
    font-size: 27px;
  }
  .hero-desc {
    font-size: 15px;
    line-height: 1.7;
  }
  .section-head h2 {
    font-size: 24px;
  }
  .stat-number {
    font-size: 30px;
  }
  .stat-label {
    font-size: 13px;
  }
  .category-card-body h3 {
    font-size: 21px;
  }
  .category-card-body p {
    font-size: 13px;
  }
  .feature-card {
    padding: 26px 20px;
  }
  .news-card {
    padding: 18px;
  }
  .faq-question {
    font-size: 14px;
    padding: 16px;
  }
  .faq-answer {
    padding: 0 16px;
  }
  .btn-primary,
  .btn-outline {
    padding: 12px 24px;
    font-size: 14px;
  }
  .logo-center a {
    font-size: 16px;
    gap: 6px;
  }
  .logo-icon {
    width: 28px;
    height: 28px;
    font-size: 12px;
    border-radius: 8px;
  }
}

/* roulang page: category1 */
:root {
            --primary: #1b3a5c;
            --primary-light: #2c5382;
            --primary-soft: #e8edf3;
            --accent: #c8a45d;
            --accent-light: #e0c588;
            --bg-light: #f7f5f0;
            --bg-white: #ffffff;
            --bg-dark: #132033;
            --text-main: #1d2733;
            --text-muted: #5e6e82;
            --text-light: #f8fafc;
            --border: #e5e0d8;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-pill: 50px;
            --shadow-sm: 0 4px 20px rgba(20, 30, 45, .06);
            --shadow-md: 0 14px 40px rgba(20, 30, 45, .10);
            --shadow-lg: 0 30px 70px rgba(20, 30, 45, .14);
            --transition: all .3s cubic-bezier(.4, 0, .2, 1);
            --header-h: 82px;
            --container-w: 1200px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg-light);
            color: var(--text-main);
            line-height: 1.7;
            font-size: 16px;
        }

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

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

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

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        .container {
            max-width: var(--container-w);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: 100px 0;
        }

        .section-head {
            max-width: 680px;
            margin-bottom: 56px;
        }

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

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            padding: 6px 18px;
            border-radius: var(--radius-pill);
            margin-bottom: 16px;
        }

        .section-tag::before {
            content: "";
            width: 6px;
            height: 6px;
            background: var(--accent);
            border-radius: 50%;
        }

        .section-head h2 {
            font-size: clamp(28px, 3.6vw, 42px);
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-main);
            letter-spacing: -0.5px;
            margin-bottom: 14px;
        }

        .section-head p {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.8;
        }

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(0, 0, 0, .06);
            box-shadow: 0 2px 20px rgba(20, 30, 45, .04);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            height: var(--header-h);
            position: relative;
        }

        .nav-left,
        .nav-right {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
        }

        .nav-right {
            justify-content: flex-end;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 9px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-main);
            border-radius: var(--radius-pill);
            transition: var(--transition);
            white-space: nowrap;
        }

        .nav-link i {
            color: var(--primary);
            font-size: 14px;
            transition: var(--transition);
        }

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

        .nav-link.active {
            background: var(--primary);
            color: #fff;
        }

        .nav-link.active i {
            color: var(--accent-light);
        }

        .logo-center {
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
        }

        .logo-center a {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.5px;
        }

        .logo-icon {
            width: 42px;
            height: 42px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            color: var(--accent-light);
            font-size: 18px;
            border-radius: 12px;
            box-shadow: 0 6px 16px rgba(27, 58, 92, .25);
        }

        .menu-toggle {
            display: none;
            width: 46px;
            height: 46px;
            border-radius: 12px;
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 19px;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }

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

        .mobile-menu {
            display: none;
            flex-direction: column;
            padding: 12px 24px 20px;
            background: #fff;
            border-top: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }

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

        .mobile-link {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 13px 8px;
            font-size: 16px;
            font-weight: 500;
            border-bottom: 1px solid rgba(0, 0, 0, .04);
            color: var(--text-main);
        }

        .mobile-link:last-child {
            border-bottom: none;
        }

        .mobile-link i {
            color: var(--primary);
            width: 22px;
            text-align: center;
        }

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

        /* ===== Hero ===== */
        .page-hero {
            position: relative;
            background-size: cover;
            background-position: center;
            padding: 120px 0 100px;
            color: #fff;
            overflow: hidden;
            isolation: isolate;
        }

        .page-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(13, 27, 45, .88) 0%, rgba(20, 40, 65, .72) 50%, rgba(13, 27, 45, .45) 100%);
            z-index: -1;
        }

        .page-hero::after {
            content: "";
            position: absolute;
            bottom: -1px;
            left: 0;
            width: 100%;
            height: 120px;
            background: var(--bg-light);
            clip-path: ellipse(70% 100% at 50% 100%);
            z-index: 1;
        }

        .hero-content {
            max-width: 720px;
            position: relative;
            z-index: 2;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .15);
            backdrop-filter: blur(6px);
            border: 1px solid rgba(255, 255, 255, .2);
            padding: 8px 22px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 500;
            color: #eef2f6;
            margin-bottom: 24px;
        }

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

        .hero-content h1 {
            font-size: clamp(36px, 5vw, 58px);
            line-height: 1.15;
            font-weight: 700;
            letter-spacing: -1px;
            margin-bottom: 18px;
            text-shadow: 0 2px 30px rgba(0, 0, 0, .25);
        }

        .hero-content h1 span {
            color: var(--accent-light);
        }

        .hero-content p {
            font-size: 17px;
            line-height: 1.9;
            color: rgba(255, 255, 255, .88);
            margin-bottom: 36px;
            max-width: 620px;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 14px 30px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-pill);
            transition: var(--transition);
            border: 2px solid transparent;
            line-height: 1.2;
        }

        .btn-primary {
            background: var(--accent);
            color: #1b2530;
            box-shadow: 0 8px 28px rgba(200, 164, 93, .35);
        }

        .btn-primary:hover {
            background: var(--accent-light);
            transform: translateY(-3px);
            box-shadow: 0 14px 36px rgba(200, 164, 93, .45);
        }

        .btn-outline-light {
            border-color: rgba(255, 255, 255, .6);
            color: #fff;
            background: transparent;
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, .12);
            border-color: #fff;
            transform: translateY(-3px);
        }

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

        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-3px);
        }

        /* ===== 分类卡片 ===== */
        .category-section {
            background: var(--bg-light);
        }

        .category-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 26px;
        }

        .category-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid rgba(0, 0, 0, .04);
            display: flex;
            flex-direction: column;
        }

        .category-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-md);
        }

        .category-card-cover {
            position: relative;
            height: 190px;
            overflow: hidden;
        }

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

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

        .category-card-cover::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 45%, rgba(13, 27, 45, .55));
        }

        .category-card-body {
            padding: 24px 22px 26px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .category-card-body h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 10px;
        }

        .category-card-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.75;
            flex: 1;
        }

        .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 18px;
        }

        .card-meta span {
            font-size: 13px;
            color: var(--text-muted);
        }

        .card-meta .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
        }

        .card-meta .card-link i {
            transition: var(--transition);
        }

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

        /* ===== 数据块 ===== */
        .stats-section {
            background: var(--bg-dark);
            position: relative;
            overflow: hidden;
        }

        .stats-section::before {
            content: "";
            position: absolute;
            top: -80px;
            right: -80px;
            width: 340px;
            height: 340px;
            border-radius: 50%;
            border: 60px solid rgba(255, 255, 255, .03);
        }

        .stats-section::after {
            content: "";
            position: absolute;
            bottom: -120px;
            left: -60px;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            border: 45px solid rgba(200, 164, 93, .04);
        }

        .stats-section .section-head h2 {
            color: #fff;
        }

        .stats-section .section-head p {
            color: rgba(255, 255, 255, .7);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            position: relative;
            z-index: 1;
        }

        .stat-item {
            text-align: center;
            padding: 44px 20px;
            background: rgba(255, 255, 255, .05);
            border: 1px solid rgba(255, 255, 255, .08);
            border-radius: var(--radius);
            backdrop-filter: blur(4px);
            transition: var(--transition);
        }

        .stat-item:hover {
            background: rgba(255, 255, 255, .09);
            transform: translateY(-4px);
            border-color: rgba(200, 164, 93, .4);
        }

        .stat-number {
            font-size: 46px;
            font-weight: 700;
            color: var(--accent-light);
            line-height: 1.1;
            margin-bottom: 10px;
        }

        .stat-label {
            font-size: 15px;
            color: rgba(255, 255, 255, .8);
        }

        /* ===== 内容列表 ===== */
        .list-section {
            background: var(--bg-white);
        }

        .content-list {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

        .content-item {
            display: flex;
            align-items: flex-start;
            gap: 24px;
            padding: 28px 30px;
            background: var(--bg-light);
            border-radius: var(--radius);
            border: 1px solid rgba(0, 0, 0, .04);
            transition: var(--transition);
        }

        .content-item:hover {
            background: var(--bg-white);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: transparent;
        }

        .content-index {
            width: 50px;
            height: 50px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            color: var(--accent-light);
            font-size: 18px;
            font-weight: 700;
            border-radius: 14px;
        }

        .content-info {
            flex: 1;
        }

        .content-info h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 6px;
            transition: var(--transition);
        }

        .content-item:hover .content-info h3 {
            color: var(--primary);
        }

        .content-info p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .content-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-top: 12px;
            flex-wrap: wrap;
        }

        .tag {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 12px;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            background: var(--primary-soft);
            color: var(--primary);
        }

        .tag.accent {
            background: rgba(200, 164, 93, .14);
            color: #8a6b33;
        }

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

        /* ===== 时间线 ===== */
        .timeline-section {
            background: var(--bg-light);
        }

        .timeline {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            margin-top: 20px;
        }

        .timeline-step {
            position: relative;
            padding: 40px 30px;
            background: var(--bg-white);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            text-align: center;
            transition: var(--transition);
            border-top: 4px solid var(--accent);
        }

        .timeline-step:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
        }

        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            font-size: 22px;
            font-weight: 700;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            margin-bottom: 20px;
            box-shadow: 0 10px 24px rgba(27, 58, 92, .25);
        }

        .timeline-step h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .timeline-step p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-white);
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            background: var(--bg-light);
            border-radius: var(--radius);
            border: 1px solid rgba(0, 0, 0, .04);
            transition: var(--transition);
        }

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

        .faq-item summary {
            cursor: pointer;
            padding: 24px 28px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            position: relative;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
        }

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

        .faq-item summary::after {
            content: "\f078";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: 14px;
            color: var(--primary);
            transition: var(--transition);
            flex-shrink: 0;
        }

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

        .faq-item .faq-answer {
            padding: 0 28px 26px;
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.85;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 110px 0;
            background-size: cover;
            background-position: center;
            position: relative;
            isolation: isolate;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 27, 45, .92), rgba(27, 58, 92, .78));
            z-index: -1;
        }

        .cta-inner {
            max-width: 720px;
            margin: 0 auto;
            text-align: center;
            color: #fff;
        }

        .cta-inner h2 {
            font-size: clamp(28px, 3.5vw, 40px);
            font-weight: 700;
            margin-bottom: 16px;
        }

        .cta-inner p {
            font-size: 16px;
            color: rgba(255, 255, 255, .85);
            margin-bottom: 32px;
        }

        .cta-form {
            display: flex;
            gap: 12px;
            max-width: 480px;
            margin: 0 auto;
            background: rgba(255, 255, 255, .1);
            padding: 8px;
            border-radius: var(--radius-pill);
            border: 1px solid rgba(255, 255, 255, .15);
            backdrop-filter: blur(6px);
        }

        .cta-form input {
            flex: 1;
            padding: 12px 20px;
            border: none;
            background: transparent;
            color: #fff;
            outline: none;
            font-size: 14px;
            min-width: 0;
        }

        .cta-form input::placeholder {
            color: rgba(255, 255, 255, .6);
        }

        .cta-form .btn-primary {
            white-space: nowrap;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, .75);
            padding: 70px 0 30px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 50px;
            margin-bottom: 50px;
        }

        .footer-brand .logo-center {
            position: static;
            transform: none;
            justify-content: flex-start;
            margin-bottom: 20px;
        }

        .footer-brand .logo-center a {
            color: #fff;
            font-size: 20px;
        }

        .footer-brand .logo-icon {
            background: rgba(255, 255, 255, .1);
            color: var(--accent-light);
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, .6);
            margin-bottom: 24px;
        }

        .footer-social {
            display: flex;
            gap: 12px;
        }

        .footer-social a {
            width: 42px;
            height: 42px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(255, 255, 255, .06);
            border: 1px solid rgba(255, 255, 255, .08);
            color: rgba(255, 255, 255, .7);
            font-size: 16px;
            transition: var(--transition);
        }

        .footer-social a:hover {
            background: var(--accent);
            color: #1b2530;
            border-color: var(--accent);
            transform: translateY(-4px);
        }

        .footer-col h4 {
            color: #fff;
            font-size: 17px;
            margin-bottom: 22px;
            position: relative;
            padding-bottom: 12px;
        }

        .footer-col h4::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 30px;
            height: 3px;
            background: var(--accent);
            border-radius: 4px;
        }

        .footer-col ul {
            list-style: none;
        }

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

        .footer-col li a {
            color: rgba(255, 255, 255, .65);
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }

        .footer-col li a:hover {
            color: var(--accent-light);
            padding-left: 4px;
        }

        .footer-col li a i {
            font-size: 12px;
            color: var(--accent);
        }

        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, .65);
        }

        .footer-contact li i {
            width: 20px;
            text-align: center;
            color: var(--accent);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding-top: 26px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 13px;
            color: rgba(255, 255, 255, .4);
        }

        /* ===== Responsive ===== */
        @media screen and (max-width: 1024px) {
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
            }

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

            .timeline {
                grid-template-columns: repeat(3, 1fr);
                gap: 20px;
            }
        }

        @media screen and (max-width: 820px) {
            .section {
                padding: 72px 0;
            }

            .header-inner {
                justify-content: space-between;
            }

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

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

            .logo-center {
                position: static;
                transform: none;
                margin-right: auto;
                margin-left: 8px;
            }

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

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

        @media screen and (max-width: 640px) {
            .container {
                padding: 0 18px;
            }

            .section {
                padding: 56px 0;
            }

            .page-hero {
                padding: 80px 0 70px;
            }

            .hero-actions .btn {
                padding: 13px 20px;
                font-size: 14px;
            }

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

            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }

            .stat-item {
                padding: 30px 14px;
            }

            .stat-number {
                font-size: 32px;
            }

            .content-item {
                flex-direction: column;
                gap: 14px;
                padding: 22px;
            }

            .content-index {
                width: 42px;
                height: 42px;
                font-size: 16px;
            }

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

            .cta-form {
                flex-direction: column;
                border-radius: 20px;
                padding: 12px;
                gap: 10px;
            }

            .cta-form input {
                text-align: center;
                padding: 14px;
                background: rgba(255, 255, 255, .08);
                border-radius: var(--radius-pill);
            }

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

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media screen and (max-width: 380px) {
            .stats-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== Focus / Accessibility ===== */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        summary:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
            border-radius: 6px;
        }

        .nav-link:active,
        .btn:active,
        .menu-toggle:active {
            transform: scale(.97);
        }

/* roulang page: article */
:root {
            --primary: #16324f;
            --primary-800: #1d3d5c;
            --primary-700: #28496a;
            --accent: #d4a853;
            --accent-600: #b8893a;
            --bg: #f5f7f9;
            --surface: #ffffff;
            --surface-muted: #eef1f4;
            --text: #16212c;
            --text-weak: #64798b;
            --border: #dde4ea;
            --radius: 16px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 10px rgba(22, 33, 44, .05);
            --shadow-md: 0 10px 30px rgba(22, 33, 44, .07);
            --shadow-lg: 0 20px 50px rgba(22, 33, 44, .1);
            --spacing: 72px;
            --font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color .25s ease;
        }
        ul,
        ol {
            list-style: none;
        }
        button {
            border: none;
            background: none;
            cursor: pointer;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
        }
        .header-inner {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
            height: 72px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .logo-center {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--primary-700));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            box-shadow: 0 4px 14px rgba(22, 50, 79, .3);
        }
        .logo-text {
            font-size: 20px;
            font-weight: 800;
            letter-spacing: .5px;
            color: var(--primary);
            white-space: nowrap;
        }
        .nav-left,
        .nav-right {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            min-width: 0;
        }
        .nav-right {
            justify-content: flex-end;
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 16px;
            border-radius: 10px;
            font-weight: 600;
            color: var(--text-weak);
            transition: all .25s ease;
            font-size: 15px;
            white-space: nowrap;
        }
        .nav-link i {
            font-size: 14px;
        }
        .nav-link:hover {
            background: var(--surface-muted);
            color: var(--primary);
        }
        .nav-link.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(22, 50, 79, .25);
        }
        .menu-toggle {
            display: none;
        }

        /* 文章 Hero */
        .article-hero {
            position: relative;
            min-height: 360px;
            display: flex;
            align-items: flex-end;
            background-size: cover;
            background-position: center;
            padding: 60px 0 48px;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 27, 43, .72) 0%, rgba(22, 50, 79, .55) 100%);
        }
        .article-hero .container {
            position: relative;
            z-index: 2;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, .7);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: rgba(255, 255, 255, .9);
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            padding: 6px 14px;
            background: rgba(212, 168, 83, .18);
            border: 1px solid rgba(212, 168, 83, .4);
            color: var(--accent);
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: .5px;
        }
        .article-hero h1 {
            font-size: clamp(28px, 4vw, 42px);
            color: #fff;
            line-height: 1.3;
            margin-bottom: 16px;
            max-width: 860px;
            font-weight: 800;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            color: rgba(255, 255, 255, .8);
            font-size: 14px;
        }
        .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        /* 正文区域 */
        .article-main-wrap {
            padding: 56px 0 40px;
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 36px;
        }
        .article-content {
            min-width: 0;
        }
        .article-card {
            background: var(--surface);
            border-radius: var(--radius);
            box-shadow: var(--shadow-md);
            padding: 44px;
        }
        .article-body {
            font-size: 17px;
            line-height: 1.9;
            color: var(--text);
            overflow-wrap: break-word;
        }
        .article-body p {
            margin-bottom: 1.6em;
        }
        .article-body h2 {
            font-size: 24px;
            margin: 1.8em 0 .6em;
            padding-left: 14px;
            border-left: 4px solid var(--accent);
            line-height: 1.4;
        }
        .article-body h3 {
            font-size: 20px;
            margin: 1.6em 0 .5em;
        }
        .article-body img {
            border-radius: 12px;
            max-width: 100%;
            height: auto;
            margin: 1.5em 0;
        }
        .article-body ul,
        .article-body ol {
            margin-bottom: 1.5em;
            padding-left: 1.4em;
        }
        .article-body ul li {
            list-style: disc;
            margin-bottom: .4em;
        }
        .article-body ol li {
            list-style: decimal;
            margin-bottom: .4em;
        }
        .article-body blockquote {
            border-left: 3px solid var(--accent);
            background: #f8f6f2;
            padding: 14px 20px;
            border-radius: 0 12px 12px 0;
            margin: 1.6em 0;
            color: var(--text-weak);
        }
        .article-body a {
            color: var(--primary-800);
            border-bottom: 1px solid rgba(22, 50, 79, .3);
        }
        .article-body a:hover {
            color: var(--accent-600);
        }
        .article-empty {
            text-align: center;
            padding: 60px 20px;
        }
        .article-empty .empty-icon {
            font-size: 56px;
            color: #c3ced8;
            margin-bottom: 18px;
        }
        .article-empty h2 {
            font-size: 28px;
            color: var(--text);
            margin-bottom: 10px;
        }
        .article-empty p {
            color: var(--text-weak);
            margin-bottom: 24px;
        }
        .btn-back {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            padding: 12px 32px;
            border-radius: 999px;
            font-weight: 600;
            box-shadow: 0 6px 18px rgba(22, 50, 79, .25);
            transition: all .3s ease;
        }
        .btn-back:hover {
            background: var(--accent);
            color: var(--primary);
            transform: translateY(-2px);
        }
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 36px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
            align-items: center;
        }
        .article-tags .tags-label {
            font-size: 14px;
            color: var(--text-weak);
            font-weight: 600;
            margin-right: 4px;
        }
        .article-tags a {
            padding: 6px 14px;
            background: var(--surface-muted);
            border-radius: 999px;
            font-size: 13px;
            color: var(--text-weak);
            transition: all .25s ease;
        }
        .article-tags a:hover {
            background: var(--primary);
            color: #fff;
        }
        .article-share {
            display: flex;
            gap: 10px;
            margin-top: 20px;
            align-items: center;
            padding-top: 18px;
            border-top: 1px solid var(--border);
        }
        .share-label {
            font-size: 14px;
            color: var(--text-weak);
            font-weight: 600;
            margin-right: 4px;
        }
        .share-btn {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--surface-muted);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-weak);
            transition: all .25s ease;
            font-size: 15px;
        }
        .share-btn:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        /* 侧边栏 */
        .article-sidebar {
            position: sticky;
            top: 96px;
            align-self: start;
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .sidebar-card {
            background: var(--surface);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            padding: 28px;
            border: 1px solid rgba(221, 228, 234, .6);
        }
        .sidebar-card h3 {
            font-size: 18px;
            margin-bottom: 14px;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card h3 i {
            color: var(--accent);
        }
        .sidebar-card p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.75;
        }
        .sidebar-list li {
            border-bottom: 1px solid var(--border);
            padding: 10px 0;
        }
        .sidebar-list li:last-child {
            border-bottom: none;
        }
        .sidebar-list a {
            display: flex;
            justify-content: space-between;
            gap: 12px;
            align-items: center;
            font-size: 14px;
            color: var(--text);
        }
        .sidebar-list a:hover {
            color: var(--accent-600);
        }
        .sidebar-list a span {
            color: var(--text-weak);
            font-size: 13px;
            flex-shrink: 0;
        }
        .sidebar-cats {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .sidebar-cats a {
            padding: 8px 16px;
            background: var(--surface-muted);
            border-radius: 999px;
            font-size: 13px;
            color: var(--text);
            transition: all .25s ease;
            border: 1px solid transparent;
        }
        .sidebar-cats a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .sidebar-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-weak);
            padding: 8px 0;
        }
        .sidebar-contact li i {
            color: var(--accent);
            width: 18px;
            text-align: center;
        }

        /* 相关推荐 */
        .related-section {
            padding: 40px 0 70px;
        }
        .section-header {
            margin-bottom: 32px;
            position: relative;
        }
        .section-header h2 {
            font-size: 30px;
            font-weight: 800;
            color: var(--text);
            display: inline-block;
            position: relative;
        }
        .section-header h2::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            width: 48px;
            height: 3px;
            border-radius: 3px;
            background: var(--accent);
        }
        .section-header p {
            color: var(--text-weak);
            margin-top: 14px;
            font-size: 15px;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .related-card {
            background: var(--surface);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all .3s ease;
            display: flex;
            flex-direction: column;
            border: 1px solid rgba(221, 228, 234, .5);
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .related-thumb {
            aspect-ratio: 16/9;
            overflow: hidden;
            background: var(--surface-muted);
        }
        .related-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }
        .related-card:hover .related-thumb img {
            transform: scale(1.05);
        }
        .related-card .category-badge {
            margin: 18px 20px 6px;
            display: inline-block;
            padding: 4px 12px;
            border-radius: 999px;
            background: rgba(212, 168, 83, .15);
            color: #b8893a;
            font-size: 12px;
            font-weight: 600;
            align-self: flex-start;
        }
        .related-card h3 {
            font-size: 17px;
            line-height: 1.5;
            margin: 0 20px 8px;
            color: var(--text);
            font-weight: 700;
        }
        .related-card p {
            font-size: 14px;
            color: var(--text-weak);
            margin: 0 20px 14px;
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card time {
            font-size: 12px;
            color: #9aa8b6;
            margin: auto 20px 18px;
            display: block;
            padding-top: 8px;
            border-top: 1px solid var(--border);
        }
        .related-empty {
            grid-column: 1/-1;
            text-align: center;
            padding: 40px;
            background: var(--surface);
            border-radius: var(--radius);
            color: var(--text-weak);
            font-size: 15px;
        }

        /* CTA */
        .cta-section {
            padding: 0 0 80px;
        }
        .cta-box {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-700) 100%);
            border-radius: 20px;
            padding: 56px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-box::before {
            content: '';
            position: absolute;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(212, 168, 83, .15);
            top: -90px;
            right: -90px;
        }
        .cta-box::after {
            content: '';
            position: absolute;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .08);
            bottom: -70px;
            left: -50px;
        }
        .cta-box h2 {
            color: #fff;
            font-size: 30px;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }
        .cta-box p {
            color: rgba(255, 255, 255, .75);
            max-width: 520px;
            margin: 0 auto 24px;
            position: relative;
            z-index: 1;
            font-size: 16px;
        }
        .cta-btn {
            display: inline-block;
            background: var(--accent);
            color: #1d2b3a;
            padding: 14px 36px;
            border-radius: 999px;
            font-weight: 700;
            position: relative;
            z-index: 1;
            transition: all .3s ease;
            box-shadow: 0 8px 24px rgba(0, 0, 0, .2);
            font-size: 15px;
        }
        .cta-btn:hover {
            background: #fff;
            transform: translateY(-2px);
            box-shadow: 0 14px 28px rgba(0, 0, 0, .25);
            color: var(--primary);
        }

        /* 页脚 */
        .site-footer {
            background: #0f1a26;
            color: #9aa8b6;
            padding: 64px 0 0;
        }
        .site-footer .logo-center {
            margin-bottom: 16px;
        }
        .site-footer .logo-text {
            color: #fff;
        }
        .site-footer .logo-icon {
            background: var(--accent);
            color: var(--primary);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            max-width: 380px;
            color: #8ba0b2;
        }
        .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 18px;
        }
        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: rgba(255, 255, 255, .08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #9aa8b6;
            transition: all .25s ease;
        }
        .footer-social a:hover {
            background: var(--accent);
            color: var(--primary);
            transform: translateY(-2px);
        }
        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            margin-bottom: 16px;
            font-weight: 700;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul a {
            color: #9aa8b6;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all .25s ease;
        }
        .footer-col ul a:hover {
            color: var(--accent);
        }
        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: #9aa8b6;
            padding: 4px 0;
        }
        .footer-contact li i {
            color: var(--accent);
            width: 16px;
            text-align: center;
        }
        .footer-bottom {
            text-align: center;
            padding: 22px 0;
            font-size: 13px;
            color: #64788a;
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: 1fr;
            }
            .article-sidebar {
                position: static;
                display: grid;
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 900px) {
            .header-inner {
                flex-wrap: wrap;
                height: auto;
                padding: 14px 20px;
                gap: 10px;
            }
            .menu-toggle {
                display: inline-flex;
                align-items: center;
                justify-content: center;
                width: 42px;
                height: 42px;
                border-radius: 12px;
                background: var(--surface-muted);
                color: var(--primary);
                font-size: 18px;
                order: -1;
            }
            .nav-left,
            .nav-right {
                display: none;
                width: 100%;
                justify-content: flex-start;
                flex-direction: column;
                align-items: stretch;
            }
            .site-header.menu-open .nav-left,
            .site-header.menu-open .nav-right {
                display: flex;
                flex-direction: column;
                align-items: stretch;
                padding-top: 8px;
            }
            .site-header.menu-open .nav-right {
                border-top: 1px solid var(--border);
                margin-top: 8px;
                padding-top: 10px;
            }
            .logo-center {
                order: 0;
                margin: 0 auto;
            }
            .nav-link {
                padding: 12px 16px;
                border-radius: 10px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --spacing: 48px;
            }
            .article-hero {
                min-height: 300px;
                padding: 40px 0 36px;
            }
            .article-card {
                padding: 28px 22px;
                border-radius: 12px;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .article-sidebar {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .cta-box {
                padding: 36px 24px;
            }
            .cta-box h2 {
                font-size: 24px;
            }
            .article-main-wrap {
                padding: 36px 0 24px;
            }
            .related-section {
                padding: 24px 0 50px;
            }
            .section-header h2 {
                font-size: 24px;
            }
        }
        @media (max-width: 520px) {
            .header-inner {
                padding: 12px 16px;
            }
            .logo-icon {
                width: 36px;
                height: 36px;
                font-size: 15px;
            }
            .logo-text {
                font-size: 17px;
            }
            .article-hero h1 {
                font-size: 26px;
            }
            .article-card {
                padding: 22px 18px;
            }
            .article-meta {
                gap: 12px;
                font-size: 13px;
            }
            .btn-back {
                width: 100%;
                text-align: center;
            }
            .related-card h3 {
                font-size: 16px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #1a5cff;
            --primary-dark: #0a3dcc;
            --primary-light: #e8edff;
            --accent: #ff6b35;
            --bg: #f5f7fc;
            --bg-white: #ffffff;
            --bg-dark: #0f1c2e;
            --bg-soft: #eef1f7;
            --text: #1a2b3c;
            --text-light: #5a6b7c;
            --text-muted: #8a99ac;
            --border: #e3e8f0;
            --radius-lg: 22px;
            --radius: 14px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
            --shadow: 0 6px 28px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 14px 48px rgba(0, 0, 0, 0.12);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --header-h: 72px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        ul,
        ol {
            list-style: none;
        }
        button,
        input {
            font-family: inherit;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .section {
            padding: 100px 0;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 50px;
            font-size: 15px;
            font-weight: 600;
            border: 2px solid transparent;
            cursor: pointer;
            transition: var(--transition);
            line-height: 1.4;
        }
        .btn i {
            font-size: 14px;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(26, 92, 255, 0.35);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(26, 92, 255, 0.45);
        }
        .btn-outline {
            background: transparent;
            border-color: var(--primary);
            color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
        }
        .btn-light {
            background: #fff;
            color: var(--primary);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
        }
        .btn-light:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.2);
        }
        .btn-outline-light {
            background: transparent;
            border-color: rgba(255, 255, 255, 0.7);
            color: #fff;
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.15);
            transform: translateY(-2px);
        }

        .section-header {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 60px;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 18px;
            border-radius: 30px;
            letter-spacing: 1px;
            margin-bottom: 16px;
        }
        .section-title {
            font-size: 38px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--text);
            letter-spacing: 1px;
        }
        .section-title span {
            color: var(--primary);
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--text-light);
            margin-top: 16px;
            line-height: 1.8;
        }

        .site-header {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1000;
            height: var(--header-h);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-h);
            gap: 16px;
        }
        .nav-left,
        .nav-right {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            min-width: 0;
        }
        .nav-right {
            justify-content: flex-end;
        }
        .nav-link {
            padding: 8px 16px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-light);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
            transition: var(--transition);
        }
        .nav-link i {
            font-size: 13px;
            color: var(--text-muted);
            transition: var(--transition);
        }
        .nav-link:hover {
            color: var(--primary);
            background: var(--primary-light);
        }
        .nav-link:hover i {
            color: var(--primary);
        }
        .nav-link.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }
        .nav-link.active i {
            color: var(--primary);
        }

        .logo-center {
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .logo-center a {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            white-space: nowrap;
            letter-spacing: 0.5px;
        }
        .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 17px;
            box-shadow: 0 4px 14px rgba(26, 92, 255, 0.35);
        }

        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 22px;
            color: var(--text);
            cursor: pointer;
            padding: 8px;
            border-radius: 8px;
            transition: var(--transition);
        }
        .mobile-toggle:hover {
            color: var(--primary);
            background: var(--primary-light);
        }

        .mobile-drawer {
            position: fixed;
            top: 0;
            right: -320px;
            width: 300px;
            height: 100vh;
            background: #fff;
            z-index: 2000;
            transition: right 0.35s ease;
            display: flex;
            flex-direction: column;
            box-shadow: -4px 0 40px rgba(0, 0, 0, 0.12);
        }
        .mobile-drawer.open {
            right: 0;
        }
        .drawer-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 20px 12px;
            border-bottom: 1px solid var(--border);
        }
        .drawer-header .logo-center a {
            font-size: 15px;
        }
        .drawer-close {
            background: none;
            border: none;
            font-size: 20px;
            color: var(--text);
            cursor: pointer;
            padding: 8px;
            border-radius: 8px;
            transition: var(--transition);
        }
        .drawer-close:hover {
            color: var(--accent);
            background: #fff5f0;
        }
        .drawer-nav {
            display: flex;
            flex-direction: column;
            padding: 16px;
            gap: 4px;
            flex: 1;
        }
        .drawer-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 14px 16px;
            border-radius: 12px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            transition: var(--transition);
        }
        .drawer-link i {
            width: 20px;
            text-align: center;
            color: var(--text-muted);
        }
        .drawer-link:hover {
            background: var(--primary-light);
            color: var(--primary);
        }
        .drawer-link.active {
            background: var(--primary-light);
            color: var(--primary);
            font-weight: 600;
        }
        .drawer-link.active i {
            color: var(--primary);
        }
        .drawer-footer {
            padding: 20px;
            text-align: center;
            color: var(--text-muted);
            font-size: 13px;
            border-top: 1px solid var(--border);
        }
        .drawer-overlay {
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.4);
            backdrop-filter: blur(3px);
            z-index: 1500;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.3s ease, visibility 0.3s ease;
        }
        .drawer-overlay.visible {
            opacity: 1;
            visibility: visible;
        }

        .page-hero {
            background: linear-gradient(135deg, #0f1926 0%, #12233e 45%, #1a3a6b 70%, #1a5cff 100%);
            padding: 110px 0 80px;
            position: relative;
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -10%;
            width: 600px;
            height: 600px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.07) 0%, transparent 70%);
        }
        .page-hero .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center 30%;
            opacity: 0.15;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 80px;
            background: linear-gradient(to top, rgba(255, 255, 255, 0.05), transparent);
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
            color: #fff;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.14);
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: 30px;
            padding: 8px 22px;
            font-size: 13px;
            letter-spacing: 1px;
            color: #fff;
            margin-bottom: 24px;
            backdrop-filter: blur(8px);
        }
        .page-hero h1 {
            font-size: 48px;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 18px;
            letter-spacing: 2px;
        }
        .page-hero .lead {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 640px;
            margin: 0 auto 36px;
            line-height: 1.8;
        }
        .hero-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 50px;
        }
        .hero-stats {
            display: flex;
            justify-content: center;
            gap: 40px;
            flex-wrap: wrap;
            padding-top: 40px;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            max-width: 640px;
            margin: 0 auto;
        }
        .hero-stat {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 4px;
        }
        .hero-stat .stat-number {
            font-size: 30px;
            font-weight: 800;
            color: #fff;
        }
        .hero-stat .stat-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
        }

        .safety-intro {
            background: var(--bg-white);
        }
        .intro-grid {
            display: flex;
            align-items: center;
            gap: 50px;
        }
        .intro-text .lead-text {
            font-size: 16px;
            color: var(--text-light);
            line-height: 1.9;
            margin-bottom: 28px;
        }
        .feature-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
        }
        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: var(--text);
            padding: 12px 14px;
            background: var(--bg-soft);
            border-radius: 10px;
            transition: var(--transition);
        }
        .feature-list li:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
        }
        .feature-list li i {
            color: var(--primary);
            font-size: 16px;
            margin-top: 2px;
        }
        .intro-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .intro-image img {
            width: 100%;
            height: 360px;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .intro-image:hover img {
            transform: scale(1.03);
        }

        .safety-categories {
            background: var(--bg);
        }
        .category-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .category-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            text-align: center;
        }
        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow);
            border-color: transparent;
            background: var(--bg-white);
        }
        .category-icon {
            width: 68px;
            height: 68px;
            border-radius: 20px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 22px;
            font-size: 24px;
            color: #fff;
            box-shadow: 0 8px 20px rgba(26, 92, 255, 0.3);
        }
        .category-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .category-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 20px;
        }
        .category-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            justify-content: center;
        }
        .category-tags span {
            background: var(--bg-soft);
            border-radius: 20px;
            padding: 4px 12px;
            font-size: 12px;
            color: var(--text-light);
            transition: var(--transition);
        }
        .category-tags span:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .guide-list {
            background: var(--bg-white);
        }
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .guide-card {
            background: var(--bg);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .guide-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow);
        }
        .guide-cover {
            position: relative;
            overflow: hidden;
            height: 200px;
        }
        .guide-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .guide-card:hover .guide-cover img {
            transform: scale(1.05);
        }
        .guide-label {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(26, 92, 255, 0.9);
            color: #fff;
            font-size: 12px;
            font-weight: 500;
            border-radius: 20px;
            padding: 4px 14px;
            backdrop-filter: blur(4px);
        }
        .guide-content {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .guide-meta {
            display: flex;
            gap: 16px;
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 10px;
        }
        .guide-content h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 10px;
            color: var(--text);
            transition: var(--transition);
        }
        .guide-card:hover .guide-content h3 {
            color: var(--primary);
        }
        .guide-content p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 18px;
        }
        .guide-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            transition: var(--transition);
        }
        .guide-link i {
            transition: transform 0.3s ease;
        }
        .guide-link:hover i {
            transform: translateX(4px);
        }

        .safety-process {
            background: linear-gradient(135deg, #0f1926 0%, #151f31 50%, #16305a 100%);
            color: #fff;
        }
        .safety-process .section-tag {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
        }
        .safety-process .section-title {
            color: #fff;
        }
        .safety-process .section-subtitle {
            color: rgba(255, 255, 255, 0.7);
        }
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .process-step {
            position: relative;
            text-align: center;
            padding: 36px 22px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-lg);
            backdrop-filter: blur(8px);
            transition: var(--transition);
        }
        .process-step:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-4px);
        }
        .step-num {
            position: absolute;
            top: 14px;
            left: 18px;
            font-size: 28px;
            font-weight: 800;
            color: rgba(255, 255, 255, 0.15);
            font-style: italic;
        }
        .process-icon {
            width: 60px;
            height: 60px;
            border-radius: 18px;
            background: rgba(255, 255, 255, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 22px;
            color: #fff;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
        }
        .process-step h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .process-step p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.6;
        }

        .faq-section {
            background: var(--bg);
        }
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            padding: 22px 28px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            transition: var(--transition);
        }
        .faq-question::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 13px;
            color: var(--text-muted);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }
        .faq-item.open .faq-question::after {
            transform: rotate(180deg);
        }
        .faq-item.open .faq-question {
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
        }
        .faq-answer-inner {
            padding: 0 28px 24px;
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.8;
        }

        .cta-section {
            padding: 80px 0;
            background: var(--bg-white);
        }
        .cta-box {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: 30px;
            padding: 60px 50px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-box::before {
            content: '';
            position: absolute;
            top: -40%;
            left: -20%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
        }
        .cta-box::after {
            content: '';
            position: absolute;
            bottom: -50%;
            right: -15%;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
        }
        .cta-box>* {
            position: relative;
            z-index: 2;
        }
        .cta-box h2 {
            font-size: 32px;
            font-weight: 800;
            margin-bottom: 14px;
            letter-spacing: 1px;
        }
        .cta-box p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            margin: 0 auto 32px;
        }

        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 60px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            margin: 16px 0 20px;
        }
        .footer-brand .logo-center a {
            color: #fff;
            font-size: 16px;
        }
        .footer-social {
            display: flex;
            gap: 10px;
        }
        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.7);
            font-size: 16px;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-3px);
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 20px;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-col ul li a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-col ul li a i {
            font-size: 12px;
            color: var(--primary);
        }
        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-contact li i {
            width: 18px;
            color: var(--primary);
            font-size: 14px;
        }
        .footer-bottom {
            text-align: center;
            padding-top: 24px;
        }
        .footer-bottom p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        @media (max-width: 1024px) {
            .section {
                padding: 80px 0;
            }
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .guide-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .page-hero h1 {
                font-size: 40px;
            }
            .section-title {
                font-size: 32px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .intro-grid {
                gap: 32px;
            }
        }
        @media (max-width: 768px) {
            .nav-left,
            .nav-right {
                display: none;
            }
            .site-header .header-inner {
                justify-content: space-between;
            }
            .mobile-toggle {
                display: flex;
                align-items: center;
                justify-content: center;
            }
            .header-inner .logo-center {
                flex: 1;
                justify-content: flex-start;
                padding-left: 8px;
            }
            .page-hero {
                padding: 80px 0 60px;
            }
            .page-hero h1 {
                font-size: 32px;
            }
            .hero-buttons {
                flex-direction: column;
                align-items: center;
                gap: 12px;
            }
            .hero-buttons .btn {
                width: 100%;
                max-width: 280px;
            }
            .hero-stats {
                gap: 24px;
            }
            .hero-stat .stat-number {
                font-size: 24px;
            }
            .intro-grid {
                flex-direction: column;
            }
            .intro-image img {
                height: 260px;
            }
            .section-title {
                font-size: 28px;
            }
            .cta-box {
                padding: 40px 28px;
            }
            .cta-box h2 {
                font-size: 26px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .faq-question {
                padding: 18px 20px;
                font-size: 15px;
            }
            .faq-answer-inner {
                padding: 0 20px 20px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 18px;
            }
            .section {
                padding: 60px 0;
            }
            .category-grid {
                grid-template-columns: 1fr;
            }
            .guide-grid {
                grid-template-columns: 1fr;
            }
            .process-grid {
                grid-template-columns: 1fr;
            }
            .page-hero h1 {
                font-size: 26px;
            }
            .hero-badge {
                font-size: 12px;
                padding: 6px 14px;
            }
            .hero-stats {
                flex-wrap: wrap;
                gap: 16px;
            }
            .hero-stat {
                min-width: 90px;
            }
            .feature-list {
                grid-template-columns: 1fr;
            }
            .section-title {
                font-size: 24px;
            }
            .logo-center a {
                font-size: 15px;
            }
            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 15px;
            }
            .footer-social a {
                width: 36px;
                height: 36px;
            }
        }