/* roulang page: index */
:root {
  --primary: #0f2a4a;
  --primary-light: #1d4370;
  --primary-deep: #0a1d33;
  --accent: #b78a3e;
  --accent-light: #d4a55c;
  --bg-body: #f5f7fa;
  --bg-card: #ffffff;
  --text-main: #1c2b3a;
  --text-muted: #5a6b7a;
  --text-light: #8a9aa8;
  --border-color: #e2e8f0;
  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 10px rgba(15, 42, 74, 0.06);
  --shadow-md: 0 6px 24px rgba(15, 42, 74, 0.1);
  --shadow-lg: 0 14px 44px rgba(15, 42, 74, 0.16);
  --sidebar-width: 264px;
  --transition: all .25s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-main);
  background: var(--bg-body);
}

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

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

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

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

p {
  margin: 0 0 1rem;
}

/* ============ 左侧导航 ============ */
.app-shell {
  display: flex;
  min-height: 100vh;
}

.app-sidebar {
  width: var(--sidebar-width);
  background: var(--primary-deep);
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  z-index: 200;
  display: flex;
  flex-direction: column;
  padding: 28px 20px;
  overflow-y: auto;
  transition: transform .3s ease;
}

.sidebar-brand {
  margin-bottom: 40px;
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(255,255,255,.12);
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #fff;
}

.brand-logo:hover {
  color: var(--accent-light);
}

.brand-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: #fff;
  flex-shrink: 0;
  box-shadow: 0 4px 14px rgba(183, 138, 62, .4);
}

.brand-text {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: .5px;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 16px;
  border-radius: var(--radius-md);
  color: rgba(255,255,255,.82);
  font-size: 15px;
  font-weight: 500;
  transition: var(--transition);
  border: 1px solid transparent;
}

.nav-link i {
  width: 20px;
  text-align: center;
  font-size: 17px;
  opacity: .85;
}

.nav-link:hover {
  background: rgba(255,255,255,.08);
  color: #fff;
}

.nav-link.active {
  background: linear-gradient(135deg, rgba(183,138,62,.22), rgba(183,138,62,.1));
  border-color: rgba(183,138,62,.45);
  color: var(--accent-light);
  font-weight: 600;
}

.nav-link.active i {
  color: var(--accent-light);
  opacity: 1;
}

.sidebar-note {
  margin-top: auto;
  margin-bottom: 0;
  padding: 18px 16px;
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--radius-md);
  color: rgba(255,255,255,.55);
  font-size: 12px;
  line-height: 1.7;
}

.sidebar-note i {
  color: var(--accent-light);
  margin-right: 4px;
}

/* ============ 主内容区 ============ */
.app-main {
  flex: 1;
  margin-left: var(--sidebar-width);
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.top-header {
  background: rgba(255,255,255,.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  padding: 14px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--border-color);
  background: #fff;
  border-radius: 10px;
  font-size: 18px;
  color: var(--primary);
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

.top-header-title {
  font-size: 14px;
  color: var(--text-muted);
}

.top-header-title span {
  color: var(--accent);
  font-weight: 600;
}

.top-header-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary);
  color: #fff;
  padding: 10px 22px;
  border-radius: 40px;
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition);
  border: none;
  cursor: pointer;
}

.top-header-cta:hover {
  background: var(--accent);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* 移动端遮罩 */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(10, 29, 51, .55);
  z-index: 180;
  opacity: 0;
  transition: opacity .3s;
}

/* ============ Hero ============ */
.hero-section {
  position: relative;
  background: linear-gradient(135deg, rgba(10, 29, 51, .94), rgba(29, 67, 112, .82)), url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  color: #fff;
  padding: 96px 0 90px;
}

.hero-section::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 120px;
  background: linear-gradient(to top, var(--bg-body), transparent);
  pointer-events: none;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 40px;
  font-size: 13px;
  letter-spacing: 2px;
  color: rgba(255,255,255,.85);
  margin-bottom: 24px;
  background: rgba(255,255,255,.08);
}

.hero-kicker .dot {
  width: 8px;
  height: 8px;
  background: #55d187;
  border-radius: 50%;
  box-shadow: 0 0 10px #55d187;
}

.hero-title {
  font-size: clamp(34px, 5vw, 56px);
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 22px;
  letter-spacing: 1px;
}

.hero-title .highlight {
  color: var(--accent-light);
  position: relative;
}

.hero-desc {
  font-size: 17px;
  color: rgba(255,255,255,.82);
  max-width: 560px;
  margin-bottom: 36px;
  line-height: 1.9;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 30px;
  border-radius: 40px;
  font-size: 15px;
  font-weight: 600;
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 6px 20px rgba(183, 138, 62, .4);
}

.btn-primary:hover {
  background: var(--accent-light);
  color: #fff;
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(183, 138, 62, .5);
}

.btn-outline {
  background: transparent;
  border-color: rgba(255,255,255,.5);
  color: #fff;
}

.btn-outline:hover {
  border-color: #fff;
  background: rgba(255,255,255,.1);
  transform: translateY(-3px);
}

.hero-card {
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.18);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-lg);
  padding: 28px;
  margin-top: 20px;
}

.hero-card-label {
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: rgba(255,255,255,.6);
  margin-bottom: 12px;
}

.hero-card-status {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 18px;
}

.hero-card-status .status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #55d187;
  box-shadow: 0 0 0 4px rgba(85, 209, 135, .2);
}

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

.hero-card-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(255,255,255,.8);
  padding: 6px 0;
}

.hero-card-list i {
  color: var(--accent-light);
  font-size: 14px;
}

.hero-card-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 12px 18px;
  border-radius: 40px;
  background: #fff;
  color: var(--primary);
  font-weight: 600;
  font-size: 14px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}

.hero-card-btn:hover {
  background: var(--accent-light);
  color: #fff;
}

/* ============ 通用板块 ============ */
.section {
  padding: 80px 0;
}

.section-alt {
  background: #fff;
}

.section-header {
  max-width: 560px;
  margin-bottom: 44px;
}

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

.section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--accent);
  background: rgba(183,138,62,.1);
  padding: 6px 14px;
  border-radius: 30px;
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(26px, 3vw, 36px);
  font-weight: 800;
  line-height: 1.35;
  color: var(--primary);
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.8;
}

/* ============ 功能特性 ============ */
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.feature-card {
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 34px 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  opacity: 0;
  transition: var(--transition);
}

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

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

.feature-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: #fff;
  margin-bottom: 20px;
  box-shadow: 0 6px 16px rgba(29, 67, 112, .3);
}

.feature-card:nth-child(2) .feature-icon {
  background: linear-gradient(135deg, var(--accent), #d9a85c);
  box-shadow: 0 6px 16px rgba(183, 138, 62, .3);
}

.feature-card:nth-child(3) .feature-icon {
  background: linear-gradient(135deg, #1e8e7e, #2bb3a0);
  box-shadow: 0 6px 16px rgba(30, 142, 126, .3);
}

.feature-card:nth-child(4) .feature-icon {
  background: linear-gradient(135deg, #3d5a9e, #5f7eee);
  box-shadow: 0 6px 16px rgba(61, 90, 158, .3);
}

.feature-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 10px;
}

.feature-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 0;
}

/* ============ 分类入口 ============ */
.category-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.category-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  min-height: 320px;
  display: flex;
  align-items: flex-end;
  background: var(--primary);
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}

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

.category-card .cc-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .55;
  transition: var(--transition);
}

.category-card:hover .cc-img {
  transform: scale(1.06);
  opacity: .45;
}

.category-card-body {
  position: relative;
  z-index: 2;
  padding: 36px;
  width: 100%;
  background: linear-gradient(to top, rgba(10, 29, 51, .9), rgba(10, 29, 51, .25) 70%, transparent);
  color: #fff;
}

.category-card-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  background: rgba(183, 138, 62, .25);
  border: 1px solid rgba(183, 138, 62, .5);
  color: var(--accent-light);
  padding: 4px 12px;
  border-radius: 30px;
  margin-bottom: 12px;
}

.category-card-title {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 8px;
}

.category-card-desc {
  font-size: 14px;
  color: rgba(255,255,255,.85);
  line-height: 1.7;
  margin-bottom: 20px;
}

.category-card-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: #fff;
}

.category-card-link i {
  transition: transform .3s;
}

.category-card:hover .category-card-link i {
  transform: translateX(6px);
}

/* ============ 最新资讯 ============ */
.news-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 32px;
  align-items: start;
}

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

.news-item {
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px 28px;
  transition: var(--transition);
}

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

.news-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}

.news-cat {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  background: rgba(183, 138, 62, .1);
  color: var(--accent);
  padding: 4px 12px;
  border-radius: 30px;
}

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

.news-title {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
  line-height: 1.5;
}

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

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

.news-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-empty {
  background: #fff;
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-md);
  padding: 48px 20px;
  text-align: center;
  color: var(--text-muted);
  font-size: 15px;
}

.news-side-panel {
  background: var(--primary-deep);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  color: #fff;
  position: sticky;
  top: 90px;
}

.news-side-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 14px;
}

.news-side-desc {
  font-size: 14px;
  color: rgba(255,255,255,.78);
  line-height: 1.8;
  margin-bottom: 22px;
}

.news-side-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 12px 20px;
  border-radius: 40px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  width: 100%;
}

.news-side-btn:hover {
  background: var(--accent-light);
  color: #fff;
  transform: translateY(-2px);
}

/* ============ 数据统计 ============ */
.stats-section {
  background: linear-gradient(135deg, var(--primary-deep), var(--primary-light));
  color: #fff;
  padding: 70px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}

.stat-block {
  text-align: center;
  padding: 20px;
}

.stat-number {
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 800;
  color: var(--accent-light);
  line-height: 1.3;
  margin-bottom: 6px;
}

.stat-label {
  font-size: 14px;
  color: rgba(255,255,255,.75);
  letter-spacing: 1px;
}

/* ============ 使用流程 ============ */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.step-card {
  position: relative;
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 36px 26px 30px;
  text-align: center;
  transition: var(--transition);
}

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

.step-number {
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 2px;
  margin-bottom: 14px;
}

.step-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  background: linear-gradient(135deg, rgba(15, 42, 74, .08), rgba(29, 67, 112, .12));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: var(--primary);
}

.step-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 8px;
}

.step-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 0;
}

.step-arrow {
  position: absolute;
  top: 50%;
  right: -16px;
  transform: translateY(-50%);
  color: var(--accent-light);
  font-size: 16px;
  z-index: 2;
}

/* ============ FAQ ============ */
.faq-wrap {
  max-width: 800px;
  margin: 0 auto;
}

.accordion {
  background: transparent;
  list-style: none;
  margin: 0;
  padding: 0;
}

.accordion-item {
  background: #fff;
  border: 1px solid var(--border-color) !important;
  border-radius: var(--radius-md) !important;
  margin-bottom: 16px;
  overflow: hidden;
  transition: var(--transition);
}

.accordion-item.is-active {
  box-shadow: var(--shadow-md);
  border-color: transparent !important;
}

.accordion-title {
  padding: 22px 28px !important;
  font-size: 16px;
  font-weight: 600;
  color: var(--primary);
  border: none !important;
  background: transparent !important;
  position: relative;
  padding-right: 50px !important;
}

.accordion-title:hover,
.accordion-title:focus {
  background: rgba(183, 138, 62, .04) !important;
}

.accordion-title::before,
.accordion-title::after {
  right: 24px !important;
  background: var(--accent) !important;
}

.accordion-content {
  padding: 0 28px 22px !important;
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.85;
  border: none !important;
  background: transparent !important;
}

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

.cta-box {
  background: linear-gradient(135deg, var(--primary-deep), var(--primary-light)), url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
  border-radius: var(--radius-lg);
  padding: 60px 64px;
  color: #fff;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.cta-box::after {
  content: '';
  position: absolute;
  right: -60px;
  top: -60px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: rgba(183, 138, 62, .2);
}

.cta-box-inner {
  position: relative;
  z-index: 2;
  max-width: 620px;
}

.cta-title {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 14px;
}

.cta-desc {
  font-size: 15px;
  color: rgba(255,255,255,.82);
  margin-bottom: 30px;
  line-height: 1.9;
}

/* ============ 页脚 ============ */
.site-footer {
  background: var(--primary-deep);
  color: rgba(255,255,255,.75);
  padding: 64px 0 0;
  margin-top: 20px;
}

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

.footer-brand .brand-logo {
  color: #fff;
  margin-bottom: 18px;
}

.footer-about {
  font-size: 14px;
  line-height: 1.85;
  color: rgba(255,255,255,.6);
  margin-bottom: 0;
}

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

.footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  color: rgba(255,255,255,.6);
  font-size: 14px;
  transition: var(--transition);
}

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

.footer-contact p {
  font-size: 14px;
  color: rgba(255,255,255,.6);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-contact i {
  color: var(--accent);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding: 22px 0;
  font-size: 13px;
  color: rgba(255,255,255,.45);
  text-align: center;
}

/* ============ 卡片图片 ============ */
.cover-img-card {
  border-radius: var(--radius-md);
  overflow: hidden;
}

/* ============ 数据卡统一样式 ============ */
.data-overview {
  display: flex;
  align-items: center;
  gap: 18px;
  background: #fff;
  border: 1px solid var(--border-color);
  padding: 20px 24px;
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  transition: var(--transition);
}

.data-overview:hover {
  box-shadow: var(--shadow-md);
}

.data-overview-icon {
  width: 48px;
  height: 48px;
  background: rgba(183, 138, 62, .12);
  color: var(--accent);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.data-overview-text {
  font-size: 14px;
  color: var(--text-muted);
}

.data-overview-text strong {
  color: var(--primary);
  font-size: 16px;
  display: block;
  margin-bottom: 2px;
}

/* ============ 通用搜索框 ============ */
.search-box {
  display: flex;
  align-items: center;
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: 40px;
  padding: 6px;
  box-shadow: var(--shadow-sm);
}

.search-box input {
  flex: 1;
  border: none;
  outline: none;
  padding: 10px 18px;
  font-size: 14px;
  background: transparent;
  min-width: 0;
}

.search-box button {
  background: var(--accent);
  border: none;
  color: #fff;
  border-radius: 40px;
  width: 40px;
  height: 40px;
  cursor: pointer;
  transition: var(--transition);
  flex-shrink: 0;
}

.search-box button:hover {
  background: var(--primary);
}

/* focus 可访问性 */
a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 3px solid rgba(183, 138, 62, .5);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

  .news-layout {
    grid-template-columns: 1fr;
  }

  .news-side-panel {
    position: static;
  }

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

@media (max-width: 768px) {
  .app-sidebar {
    transform: translateX(-100%);
    width: 280px;
  }

  .app-sidebar.open {
    transform: translateX(0);
  }

  .app-main {
    margin-left: 0;
  }

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

  .sidebar-overlay.show {
    display: block;
    opacity: 1;
  }

  .hero-section {
    padding: 60px 0 70px;
  }

  .hero-title {
    font-size: 32px;
  }

  .section {
    padding: 56px 0;
  }

  .cta-box {
    padding: 40px 28px;
  }

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

  .top-header-title {
    display: none;
  }
}

@media (max-width: 520px) {
  .features-grid {
    grid-template-columns: 1fr;
  }

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

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

  .hero-buttons {
    flex-direction: column;
    width: 100%;
  }

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

  .news-item {
    padding: 20px;
  }

  .category-card-body {
    padding: 24px;
  }
}

/* roulang page: category1 */
:root {
  --primary: #2563eb;
  --primary-strong: #1d4ed8;
  --primary-soft: #e8efff;
  --accent: #f59e0b;
  --dark: #0b1a33;
  --dark-2: #102244;
  --bg: #f5f7fc;
  --surface: #ffffff;
  --surface-muted: #eef1f8;
  --text: #17233e;
  --text-weak: #5b6b85;
  --border: #e1e7f0;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --shadow-xs: 0 1px 3px rgba(11, 26, 51, .04);
  --shadow-sm: 0 2px 10px rgba(11, 26, 51, .06);
  --shadow-md: 0 8px 28px rgba(11, 26, 51, .09);
  --shadow-lg: 0 18px 45px rgba(11, 26, 51, .13);
  --transition: .25s ease;
  --sidebar-w: 276px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
button { border: 0; background: none; cursor: pointer; font-family: inherit; }
h1, h2, h3, h4, p { margin: 0; }
.grid-container { max-width: 1320px; padding-left: 24px; padding-right: 24px; }
.grid-margin-x { margin-left: -16px; margin-right: -16px; }
.grid-margin-x > .cell { padding-left: 16px; padding-right: 16px; }
.app-shell { min-height: 100vh; }
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--sidebar-w);
  background: var(--dark);
  z-index: 100;
  overflow-y: auto;
  border-right: 1px solid rgba(255, 255, 255, .06);
}
.sidebar-inner {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 32px 22px 24px;
}
.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 38px;
}
.brand-icon {
  width: 42px;
  height: 42px;
  flex: 0 0 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary), #60a5fa);
  color: #fff;
  border-radius: 12px;
  font-size: 18px;
  box-shadow: 0 6px 18px rgba(37, 99, 235, .35);
}
.brand-text {
  font-size: 17px;
  font-weight: 700;
  color: #fff;
  letter-spacing: .5px;
  line-height: 1.35;
}
.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 8px;
}
.nav-link {
  display: flex;
  align-items: center;
  gap: 13px;
  padding: 13px 16px;
  border-radius: 12px;
  color: rgba(255, 255, 255, .76);
  font-size: 15px;
  font-weight: 500;
  transition: var(--transition);
  border: 1px solid transparent;
}
.nav-link i { width: 20px; text-align: center; font-size: 15px; }
.nav-link:hover { color: #fff; background: rgba(255, 255, 255, .08); transform: translateX(3px); }
.nav-link.active {
  color: #fff;
  background: var(--primary);
  border-color: rgba(255, 255, 255, .18);
  box-shadow: 0 8px 22px rgba(37, 99, 235, .35);
}
.sidebar-card {
  margin-top: auto;
  background: rgba(255, 255, 255, .07);
  border: 1px solid rgba(255, 255, 255, .1);
  border-radius: 16px;
  padding: 18px 16px;
  color: rgba(255, 255, 255, .7);
  font-size: 13px;
  line-height: 1.6;
}
.sidebar-card i { color: var(--accent); font-size: 18px; margin-bottom: 8px; }
.main-wrapper {
  margin-left: var(--sidebar-w);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
.main-wrapper main { flex: 1; }
.mobile-header {
  display: none;
  position: sticky;
  top: 0;
  z-index: 90;
  align-items: center;
  justify-content: space-between;
  background: rgba(11, 26, 51, .96);
  backdrop-filter: blur(10px);
  padding: 12px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}
.mobile-header .brand-logo { margin: 0; }
.mobile-header .brand-text { font-size: 15px; }
.mobile-header .brand-icon { width: 36px; height: 36px; flex-basis: 36px; font-size: 15px; border-radius: 10px; }
.menu-toggle {
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  color: #fff;
  font-size: 19px;
  border: 1px solid rgba(255, 255, 255, .16);
  transition: var(--transition);
}
.menu-toggle:hover { background: rgba(255, 255, 255, .1); }
.mobile-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(11, 26, 51, .55);
  backdrop-filter: blur(4px);
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s ease;
}
.mobile-overlay.open { opacity: 1; pointer-events: auto; }
.mobile-sidebar {
  width: 300px;
  max-width: 86vw;
  height: 100%;
  background: var(--dark);
  padding: 24px 20px;
  transform: translateX(-100%);
  transition: transform .35s ease;
  display: flex;
  flex-direction: column;
  box-shadow: 12px 0 40px rgba(0, 0, 0, .25);
}
.mobile-overlay.open .mobile-sidebar { transform: translateX(0); }
.mobile-sidebar-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 22px;
}
.mobile-sidebar-head .brand-logo { margin: 0; }
.close-btn {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: rgba(255, 255, 255, .08);
  color: #fff;
  font-size: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.close-btn:hover { background: rgba(255, 255, 255, .18); }
.page-hero {
  position: relative;
  background-image: linear-gradient(115deg, rgba(8, 18, 38, .95), rgba(17, 38, 76, .82)), url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  padding: 88px 0 76px;
  color: #fff;
  overflow: hidden;
}
.page-hero::after {
  content: '';
  position: absolute;
  right: -80px;
  top: -80px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: rgba(37, 99, 235, .22);
  filter: blur(60px);
  pointer-events: none;
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(255, 255, 255, .6);
  margin-bottom: 24px;
}
.breadcrumb a { color: rgba(255, 255, 255, .85); transition: var(--transition); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb i { font-size: 11px; }
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, .12);
  border: 1px solid rgba(255, 255, 255, .15);
  border-radius: 999px;
  padding: 7px 16px;
  font-size: 13px;
  font-weight: 500;
  color: #fff;
  margin-bottom: 20px;
  backdrop-filter: blur(6px);
}
.hero-tag i { color: var(--accent); }
.page-hero h1 {
  font-size: clamp(34px, 4vw, 52px);
  line-height: 1.18;
  font-weight: 800;
  margin-bottom: 18px;
  letter-spacing: -1px;
}
.hero-desc {
  font-size: 17px;
  line-height: 1.8;
  color: rgba(255, 255, 255, .78);
  max-width: 560px;
  margin-bottom: 34px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-image-wrap { position: relative; }
.hero-image {
  border-radius: 20px;
  box-shadow: 0 28px 60px rgba(0, 0, 0, .45);
  border: 1px solid rgba(255, 255, 255, .18);
  width: 100%;
}
.hero-chip {
  position: absolute;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, .95);
  color: var(--text);
  font-size: 13px;
  font-weight: 600;
  padding: 10px 16px;
  border-radius: 14px;
  box-shadow: 0 12px 30px rgba(0, 0, 0, .25);
  backdrop-filter: blur(6px);
}
.chip-1 { left: -18px; bottom: 44px; }
.chip-2 { right: -14px; top: 30px; }
.hero-chip i { color: #16a34a; font-size: 17px; }
.chip-2 i { color: var(--primary); }
.section { padding: 96px 0; }
.section-alt { background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-head {
  text-align: center;
  max-width: 620px;
  margin: 0 auto 52px;
}
.section-overline {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--primary);
  background: var(--primary-soft);
  padding: 5px 16px;
  border-radius: 999px;
  margin-bottom: 16px;
}
.section-head h2 {
  font-size: clamp(26px, 3vw, 36px);
  font-weight: 800;
  line-height: 1.3;
  color: var(--text);
  margin-bottom: 12px;
  letter-spacing: -.5px;
}
.section-head p { color: var(--text-weak); font-size: 16px; }
.steps-grid { row-gap: 24px; }
.step-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 34px 28px 30px;
  height: 100%;
  transition: var(--transition);
  box-shadow: var(--shadow-xs);
}
.step-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-5px);
  border-color: var(--primary-soft);
}
.step-num {
  position: absolute;
  top: 22px;
  right: 24px;
  font-size: 30px;
  font-weight: 800;
  color: var(--primary-soft);
  letter-spacing: -1px;
}
.step-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--primary-soft);
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 22px;
}
.step-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.step-card p { font-size: 14px; color: var(--text-weak); line-height: 1.7; }
.methods-grid { row-gap: 24px; }
.method-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 30px 26px;
  height: 100%;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  box-shadow: var(--shadow-xs);
}
.method-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.method-icon {
  width: 54px;
  height: 54px;
  border-radius: 15px;
  background: linear-gradient(135deg, var(--primary), #60a5fa);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 22px;
  box-shadow: 0 8px 20px rgba(37, 99, 235, .28);
}
.method-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.method-card p { font-size: 14px; color: var(--text-weak); line-height: 1.7; margin-bottom: 18px; flex: 1; }
.method-card .tag { align-self: flex-start; }
.tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
  letter-spacing: .3px;
}
.tag-blue { color: var(--primary); background: var(--primary-soft); }
.tag-green { color: #0f8a4d; background: #e2f7ec; }
.tag-purple { color: #7c3aed; background: #f0e9fe; }
.tag-orange { color: #c2570a; background: #fdefe2; }
.issue-list { display: flex; flex-direction: column; gap: 14px; }
.issue-item {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 22px 24px;
  transition: var(--transition);
  box-shadow: var(--shadow-xs);
}
.issue-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateX(4px);
  border-color: var(--primary-soft);
}
.issue-tag {
  flex: 0 0 auto;
  font-size: 12px;
  font-weight: 700;
  color: var(--primary);
  background: var(--primary-soft);
  border-radius: 999px;
  padding: 5px 14px;
  margin-top: 3px;
}
.issue-item h3 { font-size: 16px; font-weight: 700; margin-bottom: 6px; }
.issue-item p { font-size: 14px; color: var(--text-weak); line-height: 1.65; }
.issue-item .fa-chevron-right { color: var(--text-weak); opacity: .5; margin-left: auto; margin-top: 14px; font-size: 14px; }
.troubleshoot-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  height: 100%;
}
.troubleshoot-card img { width: 100%; height: 190px; object-fit: cover; }
.troubleshoot-content { padding: 28px; }
.troubleshoot-content h3 { font-size: 20px; font-weight: 700; margin-bottom: 12px; }
.troubleshoot-content p { font-size: 14px; color: var(--text-weak); line-height: 1.75; margin-bottom: 22px; }
.stats-section {
  position: relative;
  background-image: linear-gradient(rgba(10, 20, 42, .9), rgba(10, 20, 42, .94)), url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  padding: 80px 0;
  color: #fff;
}
.stats-grid { row-gap: 30px; }
.stat-item {
  text-align: center;
  padding: 28px 20px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, .07);
  border: 1px solid rgba(255, 255, 255, .12);
  backdrop-filter: blur(6px);
  transition: var(--transition);
}
.stat-item:hover { background: rgba(255, 255, 255, .13); transform: translateY(-3px); }
.stat-item strong {
  display: block;
  font-size: 38px;
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
  margin-bottom: 8px;
}
.stat-item span { font-size: 14px; color: rgba(255, 255, 255, .7); }
.faq-wrapper { max-width: 860px; margin: 0 auto; }
.accordion { background: transparent; list-style: none; margin: 0; padding: 0; border: 0; }
.accordion-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  overflow: hidden;
  transition: var(--transition);
  box-shadow: var(--shadow-xs);
}
.accordion-item.is-active {
  border-color: var(--primary-soft);
  box-shadow: var(--shadow-md);
}
.accordion-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  padding: 20px 52px 20px 24px;
  border-bottom: 0;
  position: relative;
  display: block;
  transition: var(--transition);
}
.accordion-title:hover { color: var(--primary); background: var(--surface-muted); }
.accordion-title::after {
  content: '\f078';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  position: absolute;
  right: 22px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--primary);
  font-size: 14px;
  transition: var(--transition);
}
.accordion-item.is-active .accordion-title::after {
  content: '\f077';
  color: var(--primary-strong);
}
.accordion-content {
  padding: 0 24px 22px;
  color: var(--text-weak);
  font-size: 15px;
  line-height: 1.8;
  border-top: 0;
}
.cta-section { padding: 70px 0 90px; }
.cta-box {
  background: linear-gradient(120deg, var(--primary), #1e40af);
  border-radius: 28px;
  padding: 50px 54px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  color: #fff;
  box-shadow: 0 24px 60px rgba(37, 99, 235, .35);
  position: relative;
  overflow: hidden;
}
.cta-box::after {
  content: '';
  position: absolute;
  right: -40px;
  bottom: -50px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .1);
  pointer-events: none;
}
.cta-box h2 { font-size: 28px; font-weight: 800; margin-bottom: 12px; letter-spacing: -.5px; }
.cta-box p { font-size: 15px; color: rgba(255, 255, 255, .82); max-width: 520px; }
.cta-actions { display: flex; flex-wrap: wrap; gap: 14px; flex: 0 0 auto; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 12px 24px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  transition: var(--transition);
  border: 1px solid transparent;
  text-align: center;
}
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 6px 18px rgba(37, 99, 235, .28); }
.btn-primary:hover { background: var(--primary-strong); transform: translateY(-2px); box-shadow: 0 10px 24px rgba(37, 99, 235, .38); }
.btn-ghost { background: transparent; color: #fff; border-color: rgba(255, 255, 255, .4); backdrop-filter: blur(4px); }
.btn-ghost:hover { background: rgba(255, 255, 255, .12); border-color: #fff; }
.btn-dark { background: var(--dark); color: #fff; }
.btn-dark:hover { background: var(--dark-2); transform: translateY(-2px); box-shadow: 0 10px 24px rgba(11, 26, 51, .25); }
.btn-light { background: #fff; color: var(--primary); box-shadow: 0 6px 18px rgba(0, 0, 0, .14); }
.btn-light:hover { background: var(--surface-muted); transform: translateY(-2px); }
.btn-outline-light { background: transparent; color: #fff; border-color: rgba(255, 255, 255, .6); }
.btn-outline-light:hover { background: rgba(255, 255, 255, .14); border-color: #fff; }
.site-footer {
  background: var(--dark);
  color: rgba(255, 255, 255, .7);
  padding: 60px 0 30px;
  margin-top: auto;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1.2fr;
  gap: 50px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, .1);
}
.footer-brand .brand-logo { margin-bottom: 18px; }
.footer-brand .brand-text { font-size: 17px; }
.footer-about { font-size: 14px; line-height: 1.8; color: rgba(255, 255, 255, .58); max-width: 340px; }
.footer-title {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 22px;
  position: relative;
  padding-bottom: 10px;
}
.footer-title::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 28px;
  height: 3px;
  border-radius: 3px;
  background: var(--primary);
}
.footer-links { display: flex; flex-direction: column; gap: 12px; }
.footer-links a { font-size: 14px; color: rgba(255, 255, 255, .62); transition: var(--transition); }
.footer-links a:hover { color: #fff; padding-left: 6px; }
.footer-contact p { font-size: 14px; display: flex; align-items: center; gap: 12px; margin-bottom: 12px; color: rgba(255, 255, 255, .62); }
.footer-contact i { color: var(--primary); width: 18px; text-align: center; }
.footer-bottom {
  padding-top: 28px;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, .4);
}
@media (max-width: 1100px) {
  :root { --sidebar-w: 240px; }
  .sidebar-inner { padding: 26px 18px; }
  .hero-image-wrap { display: none; }
  .page-hero { padding: 70px 0; }
}
@media (max-width: 900px) {
  .sidebar { display: none; }
  .main-wrapper { margin-left: 0; }
  .mobile-header { display: flex; }
  .page-hero { padding: 60px 0 56px; }
  .hero-image-wrap { display: block; margin-top: 32px; max-width: 460px; }
  .section { padding: 70px 0; }
  .footer-grid { grid-template-columns: 1fr; gap: 34px; }
  .cta-box { flex-direction: column; padding: 40px 30px; text-align: center; }
  .cta-actions { justify-content: center; }
}
@media (max-width: 640px) {
  .grid-container { padding-left: 18px; padding-right: 18px; }
  .page-hero h1 { font-size: 30px; }
  .hero-desc { font-size: 15px; }
  .hero-actions .btn { width: 100%; }
  .section { padding: 54px 0; }
  .section-head { margin-bottom: 36px; }
  .step-card, .method-card { padding: 24px 20px; }
  .issue-item { flex-direction: column; align-items: stretch; gap: 10px; }
  .issue-item .fa-chevron-right { display: none; }
  .troubleshoot-card img { height: 160px; }
  .stat-item strong { font-size: 30px; }
  .cta-box { padding: 32px 22px; border-radius: 20px; }
  .cta-box h2 { font-size: 22px; }
  .accordion-title { font-size: 15px; padding: 17px 46px 17px 18px; }
  .accordion-content { padding: 0 18px 18px; font-size: 14px; }
  .footer-grid { gap: 30px; }
  .footer-bottom { font-size: 12px; }
}

/* roulang page: article */
:root {
  --sidebar-width: 264px;
  --primary: #0a1430;
  --primary-deep: #060d22;
  --primary-light: #1b2547;
  --accent: #e84545;
  --accent-dark: #c92f2f;
  --gold: #d4a24e;
  --bg: #f4f6fb;
  --bg-card: #ffffff;
  --text: #1e2a3a;
  --text-muted: #637083;
  --border: #e5e9f0;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 4px 24px rgba(10,20,48,.06);
  --shadow-lg: 0 12px 36px rgba(10,20,48,.12);
  --transition: all .25s cubic-bezier(.4,0,.2,1);
}
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent); }
button, input, textarea { font-family: inherit; font-size: inherit; outline: none; }
a:focus-visible, button:focus-visible { outline: 3px solid rgba(232,69,69,.35); outline-offset: 2px; border-radius: 6px; }

.grid-container { max-width: 1200px; margin: 0 auto; padding-left: 24px; padding-right: 24px; }

.app-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 64px;
  background: rgba(10,20,48,.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,.07);
  display: none;
  align-items: center;
  z-index: 300;
}
.app-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 0 18px;
  width: 100%;
}
.menu-toggle {
  width: 40px; height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.06);
  color: #fff;
  font-size: 18px;
  cursor: pointer;
}
.brand-text-sm {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  letter-spacing: .02em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.header-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: #fff;
  background: var(--accent);
  padding: 8px 14px;
  border-radius: 30px;
  flex-shrink: 0;
}

.sidebar {
  position: fixed;
  top: 0; left: 0;
  width: var(--sidebar-width);
  height: 100vh;
  background: var(--primary);
  background-image: linear-gradient(180deg, #0c1836 0%, #070f26 100%);
  border-right: 1px solid rgba(255,255,255,.06);
  display: flex;
  flex-direction: column;
  padding: 28px 20px 24px;
  z-index: 400;
  overflow-y: auto;
}
.sidebar-brand {
  margin-bottom: 36px;
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: #fff;
}
.brand-icon {
  width: 42px; height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent), #ff8a5c);
  box-shadow: 0 6px 20px rgba(232,69,69,.35);
  font-size: 18px;
  color: #fff;
  flex-shrink: 0;
}
.brand-text {
  font-weight: 800;
  font-size: 16px;
  line-height: 1.35;
  letter-spacing: .01em;
  color: #fff;
}
.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.nav-link {
  display: flex;
  align-items: center;
  gap: 13px;
  padding: 14px 16px;
  border-radius: 14px;
  color: rgba(255,255,255,.72);
  font-size: 15px;
  font-weight: 500;
  transition: var(--transition);
  border: 1px solid transparent;
}
.nav-link i { width: 20px; text-align: center; font-size: 16px; }
.nav-link:hover {
  color: #fff;
  background: rgba(255,255,255,.08);
}
.nav-link.active {
  color: #fff;
  background: linear-gradient(135deg, var(--accent), #d93a3a);
  box-shadow: 0 8px 24px rgba(232,69,69,.28);
  border-color: rgba(255,255,255,.06);
}
.sidebar-note {
  margin-top: auto;
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 16px;
  padding: 18px;
  color: rgba(255,255,255,.6);
  font-size: 13px;
  line-height: 1.7;
}
.sidebar-note i {
  color: #2fc96b;
  margin-right: 6px;
}
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(4,8,20,.6);
  backdrop-filter: blur(2px);
  z-index: 350;
}
.sidebar-overlay.show { display: block; }

.main-content {
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.page-hero {
  background-size: cover;
  background-position: center;
  padding: 90px 0 80px;
  color: #fff;
  position: relative;
}
.hero-inner { max-width: 860px; }
.hero-badges { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 18px; }
.badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 16px;
  border-radius: 40px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .02em;
}
.badge-accent { background: var(--accent); color: #fff; box-shadow: 0 4px 14px rgba(232,69,69,.35); }
.badge-soft { background: rgba(255,255,255,.14); color: #fff; border: 1px solid rgba(255,255,255,.18); }
.page-hero h1 {
  font-size: 42px;
  font-weight: 800;
  line-height: 1.25;
  margin: 0 0 16px;
  letter-spacing: -.01em;
}
.hero-desc {
  font-size: 17px;
  line-height: 1.8;
  color: rgba(255,255,255,.78);
  margin: 0 0 26px;
  max-width: 700px;
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: rgba(255,255,255,.7);
}
.breadcrumb a { color: rgba(255,255,255,.7); }
.breadcrumb a:hover { color: #fff; }
.breadcrumb .sep { opacity: .5; font-size: 12px; }
.breadcrumb .current { color: rgba(255,255,255,.95); }

.article-wrap { padding: 80px 0; }
.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 330px;
  gap: 40px;
}
.article-main { min-width: 0; }

.article-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.article-header { padding: 40px 44px 24px; }
.article-tags { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 18px; }
.article-header h2 {
  font-size: 28px;
  font-weight: 800;
  margin: 0 0 14px;
  line-height: 1.4;
  color: var(--text);
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font-size: 14px;
  color: var(--text-muted);
}
.article-meta span { display: inline-flex; align-items: center; gap: 7px; }
.article-divider {
  height: 1px;
  background: var(--border);
  margin: 0 44px;
}
.article-content {
  padding: 36px 44px 42px;
  font-size: 16.5px;
  line-height: 1.9;
  color: #2a3648;
  word-break: break-word;
}
.article-content p { margin-bottom: 1.4em; }
.article-content h2 { font-size: 24px; margin: 2em 0 .8em; font-weight: 700; }
.article-content h3 { font-size: 20px; margin: 1.8em 0 .7em; font-weight: 700; }
.article-content img { border-radius: 12px; margin: 1.5em 0; box-shadow: var(--shadow); }
.article-content ul, .article-content ol { margin: 1em 0 1.6em; padding-left: 1.6em; }
.article-content li { margin-bottom: .5em; }
.article-content blockquote {
  border-left: 4px solid var(--accent);
  background: #f8f9fd;
  padding: 16px 22px;
  border-radius: 0 12px 12px 0;
  margin: 1.6em 0;
  color: #4a5568;
}
.article-content a { color: var(--accent); font-weight: 600; }
.article-content a:hover { text-decoration: underline; }
.article-footer {
  padding: 22px 44px 34px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: space-between;
}

.article-empty {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 70px 50px;
  text-align: center;
}
.empty-icon {
  width: 76px; height: 76px;
  margin: 0 auto 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 26px;
  background: linear-gradient(135deg, #fce9e9, #fff5ed);
  color: var(--accent);
  font-size: 32px;
}
.article-empty h2 { font-size: 28px; font-weight: 800; margin: 0 0 10px; }
.article-empty p { color: var(--text-muted); margin-bottom: 26px; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 12px 28px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 15px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  line-height: 1.4;
}
.btn-primary { background: var(--accent); color: #fff; box-shadow: 0 6px 20px rgba(232,69,69,.25); }
.btn-primary:hover { background: var(--accent-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 10px 28px rgba(232,69,69,.35); }
.btn-outline {
  background: transparent;
  border: 1.5px solid var(--border);
  color: var(--text);
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); background: rgba(232,69,69,.04); transform: translateY(-2px); }
.btn-light { background: #fff; color: var(--primary); box-shadow: 0 8px 24px rgba(0,0,0,.18); }
.btn-light:hover { background: #f0f0f0; color: var(--primary); transform: translateY(-2px); }
.btn-outline-light {
  background: transparent;
  border: 1.5px solid rgba(255,255,255,.55);
  color: #fff;
}
.btn-outline-light:hover { border-color: #fff; color: #fff; background: rgba(255,255,255,.1); transform: translateY(-2px); }
.btn-block { width: 100%; justify-content: center; }

.article-sidebar { display: flex; flex-direction: column; gap: 26px; }
.sidebar-widget {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 26px;
}
.sidebar-widget-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--bg);
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
}
.sidebar-widget-title i { color: var(--accent); }

.category-list { display: flex; flex-direction: column; gap: 12px; }
.category-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  transition: var(--transition);
}
.category-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
  background: #fff;
}
.category-icon {
  width: 44px; height: 44px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}
.category-card strong { display: block; font-size: 15px; color: var(--text); }
.category-card small { color: var(--text-muted); font-size: 13px; }

.sidebar-post-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }
.sidebar-post {
  display: flex;
  gap: 12px;
  padding: 12px 10px;
  border-radius: 12px;
  transition: var(--transition);
}
.sidebar-post:hover { background: #f8f9fc; }
.sidebar-post-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  margin-top: 10px;
  flex-shrink: 0;
}
.sidebar-post-text { min-width: 0; }
.sidebar-post-title {
  display: block;
  font-size: 14.5px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}
.sidebar-post-title:hover { color: var(--accent); }
.sidebar-post-meta { display: block; font-size: 12.5px; color: var(--text-muted); margin-top: 4px; }
.text-muted { color: var(--text-muted); font-size: 14px; }

.sidebar-contact-card { text-align: center; }
.contact-avatar {
  width: 64px; height: 64px;
  margin: 0 auto 14px;
  border-radius: 22px;
  background: linear-gradient(135deg, #e84545, #ff8a5c);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  box-shadow: 0 8px 24px rgba(232,69,69,.3);
}
.sidebar-contact-card h3 { font-size: 18px; margin: 0 0 10px; }
.sidebar-contact-card p { font-size: 14px; color: var(--text-muted); margin-bottom: 18px; line-height: 1.7; }

.faq-section { padding: 80px 0; background: var(--bg-card); }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 50px; }
.section-tag {
  display: inline-block;
  padding: 7px 18px;
  border-radius: 30px;
  background: rgba(232,69,69,.1);
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .04em;
  margin-bottom: 14px;
}
.section-head h2 { font-size: 34px; font-weight: 800; margin: 0 0 12px; color: var(--text); }
.section-head p { color: var(--text-muted); font-size: 16px; margin: 0; }
.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  max-width: 980px;
  margin: 0 auto;
}
.faq-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 0;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: #d8dce6; box-shadow: var(--shadow); }
.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 22px 24px;
  cursor: pointer;
  font-weight: 600;
  font-size: 16px;
  color: var(--text);
  list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary i { color: var(--accent); transition: transform .3s ease; font-size: 14px; }
.faq-item[open] summary i { transform: rotate(45deg); }
.faq-body { padding: 0 24px 24px; color: var(--text-muted); font-size: 15px; line-height: 1.8; }
.faq-body p { margin: 0; }

.cta-section { padding: 70px 0 80px; }
.cta-box {
  background: var(--primary);
  border-radius: 28px;
  overflow: hidden;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  box-shadow: 0 18px 50px rgba(10,20,48,.22);
}
.cta-content { padding: 56px 58px; color: #fff; display: flex; flex-direction: column; justify-content: center; }
.cta-tag {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 30px;
  background: rgba(255,255,255,.12);
  color: var(--gold);
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 16px;
  align-self: flex-start;
}
.cta-content h2 { font-size: 32px; font-weight: 800; margin: 0 0 14px; line-height: 1.35; }
.cta-content p { color: rgba(255,255,255,.75); font-size: 16px; margin-bottom: 26px; line-height: 1.8; }
.cta-buttons { display: flex; flex-wrap: wrap; gap: 14px; }
.cta-visual { position: relative; min-height: 280px; }
.cta-visual img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.cta-visual::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(90deg, var(--primary) 0%, transparent 60%);
}

.site-footer {
  background: var(--primary-deep);
  color: rgba(255,255,255,.7);
  padding: 64px 0 28px;
  border-top: 1px solid rgba(255,255,255,.05);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1.1fr;
  gap: 46px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.footer-brand { max-width: 360px; }
.footer-brand .brand-logo { margin-bottom: 18px; }
.footer-about { font-size: 14.5px; line-height: 1.8; margin: 0; color: rgba(255,255,255,.6); }
.footer-title {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 18px;
}
.footer-links { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.footer-links a { color: rgba(255,255,255,.65); font-size: 14.5px; }
.footer-links a:hover { color: var(--accent); padding-left: 4px; }
.footer-contact p { font-size: 14.5px; margin-bottom: 12px; display: flex; align-items: center; gap: 10px; }
.footer-contact i { color: var(--gold); width: 18px; text-align: center; }
.footer-bottom {
  padding-top: 26px;
  font-size: 14px;
  color: rgba(255,255,255,.45);
  text-align: center;
}

@media (max-width: 1023.98px) {
  .app-header { display: flex; }
  .sidebar {
    transform: translateX(-100%);
    transition: transform .34s cubic-bezier(.4,0,.2,1);
    width: min(300px, 85vw);
  }
  .sidebar.open { transform: translateX(0); box-shadow: 20px 0 60px rgba(4,8,20,.4); }
  .main-content { margin-left: 0; padding-top: 64px; }
  .page-hero { padding: 70px 0 60px; }
  .article-wrap { padding: 56px 0; }
  .faq-section { padding: 60px 0; }
  .cta-box { grid-template-columns: 1fr; }
  .cta-visual { min-height: 220px; order: -1; }
  .cta-visual::after { background: linear-gradient(180deg, transparent 0%, var(--primary) 100%); }
  .cta-content { padding: 40px 32px 48px; }
}

@media (max-width: 767.98px) {
  .grid-container { padding-left: 18px; padding-right: 18px; }
  .page-hero { padding: 56px 0 48px; }
  .page-hero h1 { font-size: 30px; }
  .hero-desc { font-size: 15.5px; }
  .article-layout { grid-template-columns: 1fr; gap: 32px; }
  .article-header { padding: 28px 22px 20px; }
  .article-divider { margin: 0 22px; }
  .article-content { padding: 24px 22px 30px; font-size: 16px; }
  .article-footer { padding: 18px 22px 26px; }
  .article-empty { padding: 48px 24px; }
  .faq-grid { grid-template-columns: 1fr; }
  .section-head h2 { font-size: 28px; }
  .footer-grid { grid-template-columns: 1fr; gap: 34px; }
  .cta-content h2 { font-size: 26px; }
  .cta-content { padding: 34px 24px 40px; }
  .sidebar-widget { padding: 22px; }
}

@media (max-width: 520px) {
  .page-hero h1 { font-size: 25px; }
  .hero-desc { font-size: 14.5px; }
  .article-header h2 { font-size: 22px; }
  .article-meta { gap: 12px; font-size: 13px; }
  .article-content { font-size: 15.5px; }
  .faq-item summary { padding: 18px 18px; font-size: 15px; }
  .faq-body { padding: 0 18px 20px; }
  .btn { padding: 11px 22px; font-size: 14px; }
  .cta-buttons .btn { width: 100%; justify-content: center; }
  .cta-visual { min-height: 180px; }
}

@media (min-width: 1024px) {
  .sidebar:hover { box-shadow: 4px 0 24px rgba(10,20,48,.18); }
}

/* roulang page: category2 */
/* ========== 设计变量 ========== */
:root {
  --primary: #14528c;
  --primary-dark: #0e3e6b;
  --primary-light: #2f7bbd;
  --accent: #d9a441;
  --accent-dark: #b98a2a;
  --bg: #f4f7fc;
  --card-bg: #ffffff;
  --text: #152c3f;
  --text-weak: #5d7388;
  --border: #e2e9f2;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 10px rgba(20, 40, 70, 0.06);
  --shadow-md: 0 10px 30px rgba(20, 40, 70, 0.08);
  --shadow-lg: 0 20px 50px rgba(20, 40, 70, 0.12);
  --sidebar-width: 264px;
  --space-section: 76px;
}

/* ========== 基础 Reset ========== */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--primary-light); }
button, input, select, textarea { font-family: inherit; }
a:focus-visible, button:focus-visible, input:focus-visible { outline: 3px solid rgba(217, 164, 65, 0.45); outline-offset: 2px; }

/* ========== 全局布局 ========== */
.app-shell { display: flex; min-height: 100vh; }
.main-area { margin-left: var(--sidebar-width); flex: 1; min-width: 0; display: flex; flex-direction: column; }

/* ========== 左侧导航 ========== */
.sidebar {
  width: var(--sidebar-width);
  position: fixed;
  top: 0; left: 0; bottom: 0;
  background: #0d1f33;
  color: #c7d4e4;
  padding: 26px 18px;
  display: flex;
  flex-direction: column;
  z-index: 100;
  overflow-y: auto;
}
.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-weight: 700;
  font-size: 16px;
  line-height: 1.35;
  padding: 6px 4px;
}
.brand-logo:hover { color: #fff; }
.brand-icon {
  width: 38px; height: 38px;
  display: flex; align-items: center; justify-content: center;
  background: var(--accent);
  color: #0d1f33;
  border-radius: 12px;
  font-size: 18px;
  flex-shrink: 0;
}
.brand-text { flex-shrink: 0; }
.sidebar-nav {
  margin-top: 32px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.sidebar-nav .nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 14px;
  border-radius: 12px;
  color: #a8b9cf;
  font-size: 15px;
  font-weight: 500;
  transition: background .2s, color .2s, transform .2s, box-shadow .2s;
}
.sidebar-nav .nav-link i { width: 20px; text-align: center; font-size: 15px; }
.sidebar-nav .nav-link:hover { background: rgba(255,255,255,0.08); color: #fff; }
.sidebar-nav .nav-link.active {
  background: var(--primary-light);
  color: #fff;
  box-shadow: 0 6px 18px rgba(47, 123, 189, 0.35);
}

/* ========== Hero 首屏 ========== */
.hero-banner {
  position: relative;
  background: linear-gradient(128deg, rgba(13,31,51,0.94), rgba(20,82,140,0.86)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  padding: 96px 40px 92px;
  color: #fff;
  text-align: center;
}
.hero-inner { max-width: 760px; margin: 0 auto; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.18);
  padding: 6px 16px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  color: #f7e5bd;
  margin-bottom: 18px;
}
.hero-banner h1 { font-size: 42px; font-weight: 800; margin: 0 0 16px; line-height: 1.25; letter-spacing: -0.5px; }
.hero-banner p { font-size: 17px; max-width: 640px; margin: 0 auto 30px; color: rgba(255,255,255,0.88); }
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-bottom: 36px; }
.hero-stats {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}
.stat-item {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 14px;
  padding: 12px 20px;
  min-width: 110px;
}
.stat-item strong { display: block; font-size: 24px; color: #fff; }
.stat-item span { font-size: 13px; color: rgba(255,255,255,0.7); }

/* ========== 通用板块 ========== */
.section { padding: var(--space-section) 0; }
.section-head { text-align: center; max-width: 680px; margin: 0 auto 48px; }
.section-head h2 { font-size: 31px; font-weight: 800; margin: 0 0 12px; letter-spacing: -0.3px; }
.section-head p { color: var(--text-weak); font-size: 16px; margin: 0; }
.section-tag {
  display: inline-block;
  background: rgba(217,164,65,0.14);
  color: var(--accent-dark);
  padding: 5px 15px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  margin-bottom: 14px;
}
.bg-light { background: var(--bg); }
.bg-white { background: #fff; }

/* ========== Foundation 容器覆盖 ========== */
.grid-container { max-width: 1200px; padding-left: 24px; padding-right: 24px; }
.grid-x { margin-left: -12px; margin-right: -12px; }
.grid-x > .cell { padding-left: 12px; padding-right: 12px; }

/* ========== 按钮 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  border: 0;
  cursor: pointer;
  transition: background .2s, color .2s, transform .2s, box-shadow .2s;
}
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 8px 20px rgba(20,82,140,0.22); }
.btn-primary:hover { background: var(--primary-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 12px 26px rgba(20,82,140,0.28); }
.btn-accent { background: var(--accent); color: #0d1f33; box-shadow: 0 8px 20px rgba(217,164,65,0.25); }
.btn-accent:hover { background: var(--accent-dark); color: #fff; transform: translateY(-2px); }
.btn-outline { background: transparent; border: 1px solid rgba(255,255,255,0.6); color: #fff; }
.btn-outline:hover { background: rgba(255,255,255,0.14); color: #fff; }
.btn-ghost { background: rgba(255,255,255,0.1); color: #fff; border: 1px solid rgba(255,255,255,0.25); }
.btn-ghost:hover { background: rgba(255,255,255,0.2); color: #fff; }
.btn-sm { padding: 9px 18px; font-size: 14px; border-radius: 10px; }

/* ========== 功能卡片 ========== */
.feature-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 30px 26px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: transform .25s, box-shadow .25s;
  height: 100%;
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.feature-icon {
  width: 54px; height: 54px;
  background: linear-gradient(135deg, #1d5f9e, #2f7bbd);
  color: #fff;
  border-radius: 15px;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
  margin-bottom: 18px;
  box-shadow: 0 8px 18px rgba(20,82,140,0.2);
}
.feature-card h3 { font-size: 19px; font-weight: 700; margin: 0 0 10px; }
.feature-card p { color: var(--text-weak); font-size: 14px; margin: 0; }

/* ========== 入口卡片 ========== */
.entry-card {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: transform .25s, box-shadow .25s;
  height: 100%;
  display: flex;
  flex-direction: column;
}
.entry-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.entry-cover { width: 100%; height: 180px; object-fit: cover; }
.entry-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.entry-meta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(20,82,140,0.08);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 100px;
  margin-bottom: 12px;
  align-self: flex-start;
}
.entry-card h3 { font-size: 19px; font-weight: 700; margin: 0 0 8px; }
.entry-card p { color: var(--text-weak); font-size: 14px; margin: 0 0 18px; flex: 1; }
.entry-card .btn { align-self: flex-start; }

/* ========== 步骤流程 ========== */
.steps-grid { display: flex; flex-wrap: wrap; gap: 20px; justify-content: center; }
.step-item {
  flex: 1 1 200px;
  max-width: 255px;
  text-align: center;
  padding: 30px 22px;
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: transform .25s, box-shadow .25s;
}
.step-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.step-num {
  width: 46px; height: 46px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  display: inline-flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 18px;
  margin-bottom: 16px;
  box-shadow: 0 6px 16px rgba(20,82,140,0.25);
}
.step-item h3 { font-size: 16px; font-weight: 700; margin: 0 0 8px; }
.step-item p { color: var(--text-weak); font-size: 13px; line-height: 1.65; margin: 0; }

/* ========== 入口清单 ========== */
.checklist-img {
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  margin-top: 24px;
  width: 100%;
  object-fit: cover;
}
.entry-list { list-style: none; padding: 0; margin: 0; }
.entry-list li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 18px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 14px;
  margin-bottom: 12px;
  transition: box-shadow .2s, transform .2s;
}
.entry-list li:hover { box-shadow: var(--shadow-sm); transform: translateX(4px); }
.entry-list li > i { color: var(--accent); font-size: 18px; margin-top: 3px; }
.entry-list li div { flex: 1; }
.entry-list li strong { display: block; font-size: 15px; color: var(--text); margin-bottom: 2px; }
.entry-list li span { font-size: 14px; color: var(--text-weak); }

/* ========== FAQ 手风琴 ========== */
.accordion { background: transparent; border: 0; margin: 0; }
.accordion-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  overflow: hidden;
  transition: box-shadow .2s;
}
.accordion-item:hover { box-shadow: var(--shadow-sm); }
.accordion-title {
  background: #fff;
  padding: 18px 20px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  border: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  line-height: 1.4;
}
.accordion-title::after {
  content: "\f078";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  font-size: 13px;
  color: var(--text-weak);
  transition: transform .25s;
}
.accordion-item.is-active .accordion-title::after { transform: rotate(180deg); color: var(--primary); }
.accordion-title:hover { background: #f8fbff; color: var(--primary); }
.accordion-content {
  border: 0;
  background: #f8fbff;
  padding: 0 20px 18px;
  color: var(--text-weak);
  font-size: 14px;
  line-height: 1.7;
}
.accordion-content p { margin: 0; }

/* ========== CTA 板块 ========== */
.cta-box {
  background: linear-gradient(135deg, #0d1f33, #14528c);
  border-radius: 24px;
  padding: 58px 40px;
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.cta-box::before {
  content: "";
  position: absolute;
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(217,164,65,0.25), transparent 70%);
  top: -80px; right: -60px;
  border-radius: 50%;
}
.cta-box h2 { font-size: 30px; font-weight: 800; margin: 0 0 12px; }
.cta-box p { font-size: 16px; color: rgba(255,255,255,0.85); max-width: 520px; margin: 0 auto 28px; }
.cta-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; position: relative; z-index: 1; }

/* ========== 页脚 ========== */
.site-footer {
  background: #0d1f33;
  color: #8fa3b8;
  padding: 56px 0 24px;
  margin-top: auto;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; }
.footer-brand .brand-logo { margin-bottom: 16px; }
.footer-about { font-size: 14px; line-height: 1.7; margin: 0; max-width: 360px; }
.footer-title { color: #fff; font-weight: 700; font-size: 16px; margin: 0 0 16px; }
.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: #8fa3b8; font-size: 14px; transition: color .2s; }
.footer-links a:hover { color: var(--accent); }
.footer-contact p { margin: 0 0 8px; font-size: 14px; display: flex; gap: 8px; align-items: center; }
.footer-contact i { width: 16px; text-align: center; color: var(--accent); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  margin-top: 40px;
  padding-top: 20px;
  text-align: center;
  font-size: 13px;
  color: #6f8298;
}

/* ========== 响应式 ========== */
@media (max-width: 900px) {
  .sidebar { width: 220px; padding: 20px 14px; }
  .main-area { margin-left: 220px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero-banner h1 { font-size: 34px; }
}

@media (max-width: 768px) {
  .app-shell { flex-direction: column; }
  .sidebar {
    position: sticky;
    top: 0;
    width: 100%;
    height: auto;
    flex-direction: row;
    align-items: center;
    padding: 10px 14px;
    gap: 10px;
    box-shadow: 0 4px 18px rgba(0,0,0,0.18);
  }
  .brand-logo { font-size: 14px; flex-shrink: 0; }
  .brand-icon { width: 32px; height: 32px; font-size: 14px; border-radius: 9px; }
  .sidebar-nav {
    flex-direction: row;
    margin: 0;
    overflow-x: auto;
    flex-shrink: 1;
    gap: 4px;
    padding-bottom: 2px;
  }
  .sidebar-nav::-webkit-scrollbar { height: 2px; }
  .sidebar-nav::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.3); border-radius: 4px; }
  .sidebar-nav .nav-link {
    white-space: nowrap;
    padding: 8px 10px;
    font-size: 13px;
    border-radius: 9px;
    gap: 6px;
  }
  .main-area { margin-left: 0; }
  .hero-banner { padding: 60px 20px 56px; }
  .hero-banner h1 { font-size: 28px; }
  .section { padding: 48px 0; }
  .section-head h2 { font-size: 25px; }
  .section-head { margin-bottom: 32px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .grid-container { padding-left: 18px; padding-right: 18px; }
}

@media (max-width: 520px) {
  .hero-banner h1 { font-size: 24px; }
  .hero-banner p { font-size: 15px; }
  .hero-stats { gap: 10px; }
  .stat-item { min-width: 90px; padding: 10px 14px; }
  .stat-item strong { font-size: 20px; }
  .step-item { max-width: 100%; }
  .cta-box { padding: 40px 22px; }
  .cta-box h2 { font-size: 24px; }
  .footer-bottom { font-size: 12px; }
}