/* roulang page: index */
:root {
  --primary: #F56C2D;
  --primary-dark: #E85D1E;
  --primary-light: #FF8A4C;
  --secondary: #0F2A43;
  --secondary-light: #1A3A5C;
  --bg: #FAF7F2;
  --bg-alt: #F0EDE8;
  --bg-card: #FFFFFF;
  --text: #2B2B2B;
  --text-muted: #5C6773;
  --border: rgba(15,42,67,0.08);
  --border-dark: rgba(255,255,255,0.12);
  --radius: 16px;
  --radius-sm: 8px;
  --radius-xs: 6px;
  --shadow: 0 2px 12px rgba(15,42,67,0.06);
  --shadow-hover: 0 8px 28px rgba(15,42,67,0.10);
  --transition: all 0.25s ease;
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  display: flex;
  min-height: 100vh;
  overflow-x: hidden;
}
a {
  color: inherit;
  text-decoration: none;
}
img {
  max-width: 100%;
  display: block;
}
button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}
ul, ol {
  list-style: none;
}

.container {
  width: 100%;
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== 左侧竖向导航 ===== */
.sidebar {
  width: 260px;
  flex-shrink: 0;
  background: var(--secondary);
  height: 100vh;
  position: sticky;
  top: 0;
  display: flex;
  flex-direction: column;
  z-index: 200;
  transition: var(--transition);
}
.sidebar-brand {
  height: 72px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 24px;
  border-bottom: 1px solid var(--border-dark);
  flex-shrink: 0;
}
.sidebar-logo {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  font-weight: 800;
  color: #fff;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  box-shadow: 0 4px 12px rgba(245,108,45,0.35);
}
.sidebar-brand-text {
  display: flex;
  flex-direction: column;
}
.sidebar-brand-text strong {
  color: #fff;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 1px;
  line-height: 1.3;
}
.sidebar-brand-text span {
  color: var(--primary-light);
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  opacity: 0.85;
}
.sidebar-nav {
  flex: 1;
  padding: 24px 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.nav-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 20px;
  color: rgba(255,255,255,0.72);
  font-size: 16px;
  font-weight: 600;
  border-radius: 10px;
  position: relative;
  transition: var(--transition);
  letter-spacing: 0.5px;
}
.nav-item svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
}
.nav-item:hover {
  color: #fff;
  background: rgba(255,255,255,0.06);
  padding-left: 24px;
}
.nav-item.active {
  color: #fff;
  background: rgba(255,255,255,0.08);
}
.nav-item.active::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 24px;
  background: var(--primary);
  border-radius: 0 4px 4px 0;
}
.sidebar-footer {
  padding: 20px 24px 24px;
  border-top: 1px solid var(--border-dark);
  flex-shrink: 0;
}
.sidebar-contact-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 10px 0;
  border-radius: 999px;
  border: 1.5px solid rgba(255,255,255,0.35);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  transition: var(--transition);
  margin-bottom: 14px;
}
.sidebar-contact-btn:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--primary-light);
}
.sidebar-copyright {
  text-align: center;
  font-size: 11px;
  color: rgba(255,255,255,0.45);
}

/* ===== 移动端顶部导航 ===== */
.mobile-header {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 60px;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 300;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  box-shadow: 0 2px 12px rgba(15,42,67,0.06);
}
.mobile-brand {
  display: flex;
  align-items: center;
  gap: 8px;
}
.mobile-brand .mini-logo {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 16px;
  font-weight: 800;
}
.mobile-brand strong {
  color: var(--secondary);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 1px;
}
.mobile-login-btn {
  padding: 6px 18px;
  background: var(--secondary);
  color: #fff;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  transition: var(--transition);
}
.mobile-login-btn:hover {
  background: var(--primary);
}
.hamburger {
  width: 42px;
  height: 42px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--secondary);
  border-radius: 2px;
  transition: var(--transition);
}
.hamburger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.hamburger.active span:nth-child(2) {
  opacity: 0;
}
.hamburger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.mobile-drawer {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: var(--secondary);
  z-index: 290;
  display: flex;
  flex-direction: column;
  padding: 80px 32px 40px;
  opacity: 0;
  visibility: hidden;
  transform: translateX(100%);
  transition: all 0.35s ease;
}
.mobile-drawer.open {
  opacity: 1;
  visibility: visible;
  transform: translateX(0);
}
.mobile-drawer .drawer-nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.mobile-drawer .drawer-link {
  color: rgba(255,255,255,0.85);
  font-size: 24px;
  font-weight: 700;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  gap: 14px;
  transition: var(--transition);
}
.mobile-drawer .drawer-link:hover {
  color: var(--primary-light);
  padding-left: 8px;
}
.drawer-footer {
  margin-top: auto;
  padding-top: 20px;
}
.drawer-customer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 0;
  border-radius: 999px;
  border: 1.5px solid rgba(255,255,255,0.3);
  color: #fff;
  font-size: 16px;
  transition: var(--transition);
}
.drawer-customer:hover {
  border-color: var(--primary-light);
  background: rgba(255,255,255,0.06);
}

/* ===== 右侧主内容区 ===== */
.main-content {
  flex: 1;
  min-width: 0;
  margin-left: 260px;
  display: flex;
  flex-direction: column;
}

/* 通用区块标题 */
.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}
.section-title-wrap {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}
.section-title-wrap .bar {
  width: 4px;
  height: 34px;
  border-radius: 0 4px 4px 0;
  background: var(--primary);
  flex-shrink: 0;
  margin-top: 4px;
}
.section-title {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--secondary);
  letter-spacing: 0.5px;
}
.section-subtitle {
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 8px;
}
.section-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  transition: var(--transition);
}
.section-more:hover {
  gap: 14px;
  color: var(--primary-dark);
}
.section-more svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
}

/* ===== Hero首屏 ===== */
.hero {
  position: relative;
  background: var(--bg);
  background-image: url("/assets/images/backpic/back-1.png");
  background-size: cover;
  background-position: center;
  padding: 80px 0 72px;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, var(--bg) 28%, rgba(250,247,242,0.68) 58%, transparent 100%);
  z-index: 1;
}
.hero::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, rgba(245,108,45,0.08) 0%, transparent 70%);
  z-index: 0;
}
.hero .container {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 55% 45%;
  align-items: center;
  gap: 32px;
}
.hero-text {
  padding-right: 24px;
}
.hero h1 {
  font-size: 46px;
  font-weight: 700;
  line-height: 1.25;
  color: var(--secondary);
  margin-bottom: 8px;
  letter-spacing: 1px;
}
.hero h1 .accent {
  color: var(--primary);
}
.hero-underline {
  width: 72px;
  height: 6px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  border-radius: 999px;
  margin-bottom: 20px;
}
.hero-subtitle {
  font-size: 18px;
  color: var(--text);
  line-height: 1.8;
  margin-bottom: 28px;
  max-width: 520px;
}
.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
  padding: 13px 32px;
  border-radius: 999px;
  transition: all 0.25s ease;
  line-height: 1.4;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  box-shadow: 0 6px 20px rgba(245,108,45,0.3), inset 0 1px 0 rgba(255,255,255,0.2);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(245,108,45,0.4);
  filter: brightness(1.08);
}
.btn-primary:active {
  transform: translateY(0);
}
.btn-outline {
  background: transparent;
  border: 1.5px solid var(--primary);
  color: var(--primary);
}
.btn-outline:hover {
  background: rgba(245,108,45,0.08);
  transform: translateY(-2px);
}
.btn:focus-visible {
  outline: 3px solid rgba(245,108,45,0.25);
  outline-offset: 2px;
}
.hero-badges {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.hero-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
}
.hero-badge svg {
  width: 16px;
  height: 16px;
  stroke: var(--primary);
  fill: none;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.hero-image {
  position: relative;
}
.hero-image-card {
  background: #fff;
  border-radius: 20px;
  padding: 12px;
  box-shadow: var(--shadow-hover);
  transform: rotate(2.5deg);
  position: relative;
  z-index: 2;
}
.hero-image-card::before {
  content: "";
  position: absolute;
  bottom: -14px;
  right: -12px;
  width: 100%;
  height: 100%;
  background: var(--primary);
  border-radius: 20px;
  z-index: -1;
  opacity: 0.3;
}
.hero-image-card img {
  border-radius: 12px;
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}
.hero-live-badge {
  position: absolute;
  top: 4px;
  right: 4px;
  z-index: 10;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(6px);
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  color: #22c55e;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
  display: flex;
  align-items: center;
  gap: 6px;
}
.online-dot {
  width: 7px;
  height: 7px;
  background: #22c55e;
  border-radius: 50%;
  animation: pulse 1.6s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(34,197,94,0.4); }
  50% { opacity: 0.75; box-shadow: 0 0 0 6px rgba(34,197,94,0); }
}

/* ===== 服务板块 ===== */
.services {
  padding: 88px 0;
  background: var(--bg);
}
.services-grid {
  display: grid;
  grid-template-columns: 7fr 5fr;
  gap: 24px;
}
.service-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 32px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.service-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: rgba(245,108,45,0.35);
  transform: translateY(-4px);
}
.service-card.large {
  min-height: 200px;
}
.service-card.small {
  min-height: 180px;
  display: flex;
  flex-direction: column;
}
.service-icon {
  width: 44px;
  height: 44px;
  margin-bottom: 18px;
}
.service-icon svg {
  width: 44px;
  height: 44px;
  stroke: var(--primary);
  fill: none;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.service-card h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--secondary);
  margin-bottom: 10px;
  line-height: 1.5;
}
.service-card p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 16px;
}
.service-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  transition: var(--transition);
  margin-top: auto;
}
.service-link:hover {
  gap: 10px;
  color: var(--primary-dark);
}

/* ===== 数据区块 ===== */
.stats-section {
  padding: 0 0 88px;
  background: var(--bg);
}
.stats-box {
  background: var(--secondary);
  border-radius: 24px;
  padding: 48px 56px;
  display: grid;
  grid-template-columns: 4fr 8fr;
  gap: 48px;
  align-items: center;
  position: relative;
  overflow: hidden;
}
.stats-box::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -60px;
  width: 240px;
  height: 240px;
  background: radial-gradient(circle, rgba(245,108,45,0.15) 0%, transparent 70%);
}
.stats-box::after {
  content: "";
  position: absolute;
  bottom: -60px;
  left: 30%;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(245,108,45,0.08) 0%, transparent 70%);
}
.stats-left {
  position: relative;
  z-index: 1;
}
.stats-left h2 {
  font-size: 28px;
  color: #fff;
  font-weight: 700;
  margin-bottom: 12px;
  line-height: 1.4;
}
.stats-left p {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  line-height: 1.8;
}
.stats-right {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.stat-item {
  text-align: center;
  padding: 20px 10px;
  border-radius: 12px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  transition: var(--transition);
}
.stat-item:hover {
  background: rgba(255,255,255,0.08);
  transform: translateY(-3px);
}
.stat-number {
  font-size: 42px;
  font-weight: 700;
  color: var(--primary-light);
  line-height: 1.2;
  font-family: "DIN Alternate", "Bahnschrift", system-ui, sans-serif;
}
.stat-label {
  font-size: 13px;
  color: rgba(255,255,255,0.65);
  margin-top: 6px;
}

/* ===== 平台展示 ===== */
.showcase {
  padding: 88px 0;
  background: var(--bg-alt);
}
.showcase-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.showcase-card {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid var(--border);
  position: relative;
}
.showcase-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-6px);
  border-color: rgba(245,108,45,0.35);
}
.showcase-card .card-img {
  height: 200px;
  overflow: hidden;
  position: relative;
}
.showcase-card .card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}
.showcase-card:hover .card-img img {
  transform: scale(1.04);
}
.showcase-card .card-img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(15,42,67,0.15) 100%);
}
.showcase-card .hot-tag {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 3;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: 999px;
  box-shadow: 0 4px 12px rgba(245,108,45,0.35);
}
.showcase-card .card-tag {
  display: inline-block;
  font-size: 12px;
  color: var(--primary);
  background: rgba(245,108,45,0.1);
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 10px;
}
.showcase-card .card-body {
  padding: 24px;
}
.showcase-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--secondary);
  margin-bottom: 8px;
  line-height: 1.5;
}
.showcase-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.75;
}

/* ===== 流程板块 ===== */
.process {
  padding: 88px 0;
  background: var(--bg);
}
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  position: relative;
  margin-top: 40px;
}
.process-steps::before {
  content: "";
  position: absolute;
  top: 18px;
  left: 8%;
  right: 8%;
  border-top: 2px dashed rgba(15,42,67,0.12);
}
.process-step {
  position: relative;
  text-align: left;
  padding: 0 8px;
}
.process-step .step-num {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  box-shadow: 0 4px 14px rgba(245,108,45,0.3);
  position: relative;
  z-index: 1;
}
.process-step h4 {
  font-size: 18px;
  font-weight: 600;
  color: var(--secondary);
  margin-bottom: 8px;
}
.process-step p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 12px;
}
.step-tag {
  display: inline-block;
  font-size: 12px;
  color: var(--primary);
  background: rgba(245,108,45,0.1);
  padding: 4px 12px;
  border-radius: 999px;
}

/* ===== 新闻列表 CMS ===== */
.news-section {
  padding: 88px 0;
  background: var(--bg-alt);
}
.news-list {
  display: flex;
  flex-direction: column;
}
.news-item {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 22px 0;
  border-bottom: 1px dashed rgba(15,42,67,0.1);
  transition: var(--transition);
}
.news-item:first-child {
  padding-top: 0;
}
.news-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}
.news-item:hover {
  padding-left: 8px;
}
.news-thumb {
  width: 96px;
  height: 72px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  flex-shrink: 0;
  background: linear-gradient(135deg, #f0ede8, #e5e0da);
  display: flex;
  align-items: center;
  justify-content: center;
}
.news-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.news-thumb-placeholder {
  color: var(--primary);
  opacity: 0.5;
}
.news-thumb-placeholder svg {
  width: 28px;
  height: 28px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.5;
}
.news-content {
  flex: 1;
  min-width: 0;
}
.news-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--secondary);
  margin-bottom: 4px;
  line-height: 1.5;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: var(--transition);
}
.news-title a:hover {
  color: var(--primary);
}
.news-summary {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  margin-bottom: 6px;
}
.news-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 13px;
}
.news-cat {
  color: var(--primary);
  font-weight: 600;
}
.news-date {
  color: var(--text-muted);
}
.news-read-more {
  flex-shrink: 0;
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
  white-space: nowrap;
}
.news-read-more:hover {
  gap: 12px;
  color: var(--primary-dark);
}
.news-empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
  background: #fff;
  border-radius: var(--radius);
  border: 1px dashed var(--border);
}
.news-empty svg {
  width: 40px;
  height: 40px;
  stroke: var(--text-muted);
  fill: none;
  stroke-width: 1.2;
  margin: 0 auto 12px;
  opacity: 0.5;
}
.news-empty p {
  font-size: 15px;
}

/* ===== FAQ板块 ===== */
.faq-section {
  padding: 88px 0;
  background: var(--bg);
}
.faq-layout {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 48px;
}
.faq-left .section-title {
  font-size: 28px;
}
.faq-left p {
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 14px;
  line-height: 1.8;
}
.faq-contact-card {
  margin-top: 24px;
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 20px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}
.faq-contact-card h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--secondary);
  margin-bottom: 6px;
}
.faq-contact-card p {
  font-size: 13px;
  color: var(--text-muted);
  margin: 4px 0;
}
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.faq-item {
  background: var(--bg-card);
  border-radius: 12px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover {
  border-color: rgba(245,108,45,0.3);
}
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 22px;
  font-size: 16px;
  font-weight: 600;
  color: var(--secondary);
  text-align: left;
  transition: var(--transition);
  background: none;
}
.faq-question:hover {
  color: var(--primary);
}
.faq-question .faq-toggle {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  border-radius: 50%;
  background: rgba(245,108,45,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  margin-left: auto;
}
.faq-question .faq-toggle svg {
  width: 16px;
  height: 16px;
  stroke: var(--primary);
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  transition: transform 0.3s ease;
}
.faq-question.active .faq-toggle {
  background: var(--primary);
}
.faq-question.active .faq-toggle svg {
  transform: rotate(45deg);
  stroke: #fff;
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  padding: 0 22px;
  transition: max-height 0.35s ease, padding 0.35s ease;
}
.faq-answer p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.8;
  padding-bottom: 20px;
  border-left: 3px solid var(--primary);
  padding-left: 16px;
  margin-left: 0;
}

/* ===== CTA收尾 ===== */
.cta-section {
  padding: 0 0 88px;
  background: var(--bg);
}
.cta-box {
  background: var(--secondary);
  border-radius: 24px;
  padding: 48px 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  position: relative;
  overflow: hidden;
}
.cta-box::before {
  content: "";
  position: absolute;
  top: -40px;
  left: -20px;
  width: 160px;
  height: 160px;
  background: radial-gradient(circle, rgba(245,108,45,0.14) 0%, transparent 70%);
}
.cta-box::after {
  content: "";
  position: absolute;
  bottom: -60px;
  right: 10%;
  width: 180px;
  height: 180px;
  background: radial-gradient(circle, rgba(245,108,45,0.08) 0%, transparent 70%);
}
.cta-left {
  display: flex;
  align-items: center;
  gap: 20px;
  position: relative;
  z-index: 1;
}
.cta-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: rgba(245,108,45,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.cta-icon svg {
  width: 28px;
  height: 28px;
  stroke: var(--primary-light);
  fill: none;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.cta-left h2 {
  color: #fff;
  font-size: 26px;
  font-weight: 700;
  line-height: 1.4;
}
.cta-left p {
  color: rgba(255,255,255,0.6);
  font-size: 14px;
  margin-top: 4px;
}
.cta-actions {
  display: flex;
  gap: 14px;
  position: relative;
  z-index: 1;
  flex-shrink: 0;
}
.btn-light {
  background: #fff;
  color: var(--secondary);
  font-weight: 600;
  box-shadow: 0 4px 16px rgba(0,0,0,0.16);
}
.btn-light:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-2px);
}
.btn-ghost {
  background: transparent;
  border: 1.5px solid rgba(255,255,255,0.4);
  color: rgba(255,255,255,0.9);
}
.btn-ghost:hover {
  background: rgba(255,255,255,0.08);
  border-color: #fff;
  transform: translateY(-2px);
}

/* ===== 页脚 ===== */
.footer {
  background: var(--secondary);
  padding: 56px 0 0;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.footer-grid {
  display: grid;
  grid-template-columns: 5fr 3fr 4fr;
  gap: 48px;
  padding-bottom: 40px;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}
.footer-brand .footer-logo {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 22px;
  font-weight: 800;
}
.footer-brand strong {
  color: #fff;
  font-size: 20px;
  font-weight: 700;
}
.footer-desc {
  font-size: 14px;
  color: rgba(255,255,255,0.55);
  line-height: 1.8;
  margin-bottom: 10px;
}
.footer-icp {
  font-size: 12px;
  color: rgba(255,255,255,0.3);
}
.footer h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 10px;
}
.footer h4::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 24px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links a {
  color: rgba(255,255,255,0.55);
  font-size: 14px;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.footer-links a:hover {
  color: #fff;
  padding-left: 4px;
}
.footer-links a::before {
  content: "";
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: var(--transition);
}
.footer-links a:hover::before {
  width: 12px;
}
.footer-contact p {
  color: rgba(255,255,255,0.55);
  font-size: 14px;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.footer-contact p svg {
  width: 15px;
  height: 15px;
  stroke: var(--primary-light);
  fill: none;
  stroke-width: 1.8;
  flex-shrink: 0;
}
.footer-copyright {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 18px 0;
  text-align: center;
  font-size: 12px;
  color: rgba(255,255,255,0.35);
}

/* 回到顶部 */
.back-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--secondary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 20px rgba(15,42,67,0.25);
  z-index: 400;
  transition: var(--transition);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
}
.back-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-top:hover {
  background: var(--primary);
  transform: translateY(-2px);
}
.back-top svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* 按钮焦点 */
.faq-question:focus-visible,
.nav-item:focus-visible,
.sidebar-contact-btn:focus-visible,
.btn:focus-visible,
.back-top:focus-visible {
  outline: 3px solid rgba(245,108,45,0.35);
  outline-offset: 2px;
}

/* ===== 响应式 ===== */
@media (max-width: 1200px) {
  .stats-box {
    padding: 40px 32px;
    gap: 32px;
  }
  .hero {
    padding: 64px 0;
  }
  .hero h1 {
    font-size: 40px;
  }
  .stats-right {
    gap: 16px;
  }
  .stat-number {
    font-size: 34px;
  }
}
@media (max-width: 991px) {
  body {
    flex-direction: column;
  }
  .sidebar {
    display: none;
  }
  .main-content {
    margin-left: 0;
    margin-top: 60px;
  }
  .mobile-header {
    display: flex;
  }
  .mobile-drawer {
    display: flex;
  }
  .hero .container {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .hero h1 {
    font-size: 36px;
  }
  .hero-text {
    padding-right: 0;
  }
  .hero-image {
    max-width: 520px;
    margin: 0 auto;
  }
  .services-grid {
    grid-template-columns: 1fr;
  }
  .service-card {
    min-height: 0;
  }
  .stats-box {
    grid-template-columns: 1fr;
  }
  .stats-right {
    grid-template-columns: repeat(2, 1fr);
  }
  .showcase-cards {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .process-steps {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px 24px;
  }
  .process-steps::before {
    display: none;
  }
  .faq-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .cta-box {
    flex-direction: column;
    padding: 40px 32px;
    text-align: center;
  }
  .cta-left {
    flex-direction: column;
    text-align: center;
  }
  .cta-left h2 {
    font-size: 22px;
  }
  .cta-actions {
    flex-direction: column;
    width: 100%;
  }
  .cta-actions .btn {
    width: 100%;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}
@media (max-width: 576px) {
  .container {
    padding: 0 18px;
  }
  .hero {
    padding: 40px 0;
  }
  .hero h1 {
    font-size: 28px;
  }
  .hero-subtitle {
    font-size: 16px;
  }
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .hero-badges {
    gap: 14px;
  }
  .section-title {
    font-size: 24px;
  }
  .section-header {
    flex-direction: column;
    align-items: flex-start;
  }
  .services {
    padding: 56px 0;
  }
  .stats-box {
    padding: 28px 18px;
    border-radius: 16px;
  }
  .stats-left h2 {
    font-size: 22px;
  }
  .stats-right {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .stat-number {
    font-size: 28px;
  }
  .stat-label {
    font-size: 12px;
  }
  .showcase {
    padding: 56px 0;
  }
  .process {
    padding: 56px 0;
  }
  .process-steps {
    grid-template-columns: 1fr;
  }
  .news-item {
    flex-direction: column;
    align-items: flex-start;
  }
  .news-thumb {
    width: 100%;
    height: 120px;
  }
  .news-read-more {
    margin-top: 8px;
  }
  .faq-question {
    font-size: 15px;
    padding: 16px;
    gap: 10px;
  }
  .faq-answer p {
    padding-left: 10px;
    padding-bottom: 16px;
  }
  .cta-box {
    padding: 32px 20px;
  }
  .cta-icon {
    width: 44px;
    height: 44px;
  }
  .cta-left h2 {
    font-size: 20px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .footer {
    padding-top: 40px;
  }
  .footer-copyright {
    font-size: 11px;
  }
  .back-top {
    right: 18px;
    bottom: 18px;
  }
}
@media (max-width: 400px) {
  .stats-right {
    grid-template-columns: 1fr;
  }
}

/* roulang page: category1 */
:root {
  --primary: #F56C2D;
  --primary-light: #FF8A4C;
  --primary-grad: linear-gradient(135deg, #F56C2D, #FF8A4C);
  --deep: #0F2A43;
  --deep-light: rgba(15,42,67,0.6);
  --bg: #Faf7F2;
  --bg-alt: #F0EDE8;
  --card: #FFFFFF;
  --text: #2B2B2B;
  --text-secondary: #5C6773;
  --text-light: rgba(255,255,255,0.78);
  --border: rgba(15,42,67,0.08);
  --border-deep: rgba(255,255,255,0.12);
  --radius: 16px;
  --radius-sm: 8px;
  --radius-lg: 24px;
  --shadow: 0 2px 12px rgba(15,42,67,0.06);
  --shadow-hover: 0 8px 28px rgba(15,42,67,0.10);
  --shadow-deep: 0 6px 20px rgba(0,0,0,0.18);
  --transition: all 0.25s ease;
  --space-lg: 96px;
  --space-md: 56px;
  --space-sm: 32px;
  --font: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.75;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block;object-fit:cover}
a{color:inherit;text-decoration:none;transition:var(--transition)}
button{font-family:inherit;cursor:pointer;border:none;background:none}
ul,ol{list-style:none}
.container{max-width:1320px;margin:0 auto;padding:0 24px}
.layout{display:flex;min-height:100vh}
.sidebar{width:260px;background:var(--deep);position:fixed;top:0;left:0;height:100vh;display:flex;flex-direction:column;z-index:1000}
.main{flex:1;margin-left:260px;min-width:0}
.brand-area{display:flex;align-items:center;gap:12px;padding:24px 20px 20px}
.brand-logo{width:44px;height:44px;border-radius:12px;background:var(--primary-grad);display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:800;color:#fff;box-shadow:0 4px 14px rgba(245,108,45,.4)}
.brand-text .brand-name{font-size:21px;font-weight:700;color:#fff;line-height:1.2;letter-spacing:.5px}
.brand-text .brand-sub{font-size:10px;letter-spacing:2px;color:rgba(255,255,255,.55);text-transform:uppercase;line-height:1.6}
.sidebar-divider{height:1px;background:rgba(255,255,255,.12);margin:0 20px 16px}
.sidebar-nav{flex:1;display:flex;flex-direction:column;gap:4px;padding:0 14px}
.nav-item{display:flex;align-items:center;gap:12px;padding:14px 16px;border-radius:10px;font-size:15px;font-weight:600;color:rgba(255,255,255,.78);position:relative;transition:var(--transition)}
.nav-item svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}
.nav-item:hover{background:rgba(255,255,255,.06);color:#fff;padding-left:20px}
.nav-item.active{background:rgba(245,108,45,.12);color:#fff}
.nav-item.active::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:4px;border-radius:2px;background:var(--primary)}
.nav-item.active svg{color:var(--primary)}
.sidebar-footer{padding:16px 20px 20px;border-top:1px solid rgba(255,255,255,.10)}
.sidebar-customer{padding:14px 16px;border:1px solid rgba(255,255,255,.18);border-radius:12px;display:flex;align-items:center;gap:10px;margin-bottom:12px;transition:var(--transition)}
.sidebar-customer:hover{border-color:var(--primary);background:rgba(245,108,45,.10)}
.sidebar-customer svg{width:18px;height:18px;fill:none;stroke:var(--primary-light);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}
.sidebar-customer span{color:#fff;font-size:13px;font-weight:500}
.sidebar-copy{font-size:11px;color:rgba(255,255,255,.35);text-align:center;padding-top:8px}
.mobile-header{display:none;position:fixed;top:0;left:0;right:0;height:60px;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);z-index:1200;align-items:center;justify-content:space-between;padding:0 16px;box-shadow:0 2px 12px rgba(15,42,67,.08)}
.mobile-header .brand{display:flex;align-items:center;gap:8px}
.mobile-header .brand .brand-logo{width:32px;height:32px;font-size:15px;border-radius:8px}
.mobile-header .brand .brand-name{font-size:18px;font-weight:700;color:var(--deep)}
.mobile-login{display:inline-flex;align-items:center;justify-content:center;padding:6px 18px;border-radius:999px;background:var(--primary-grad);color:#fff;font-size:13px;font-weight:600;transition:var(--transition)}
.mobile-login:hover{transform:translateY(-1px);box-shadow:0 4px 12px rgba(245,108,45,.35)}
.hamburger{display:flex;flex-direction:column;gap:5px;padding:10px;border-radius:8px;cursor:pointer}
.hamburger span{display:block;width:22px;height:2px;border-radius:1px;background:var(--deep);transition:var(--transition)}
.mobile-drawer{position:fixed;top:0;left:0;right:0;bottom:0;background:var(--deep);z-index:1100;flex-direction:column;padding:80px 28px 32px;display:none;transform:translateY(-100%);transition:transform .35s ease}
.mobile-drawer.open{transform:translateY(0);display:flex}
.mobile-drawer .drawer-nav{display:flex;flex-direction:column;gap:8px;flex:1}
.mobile-drawer .nav-item{font-size:24px;padding:18px 20px;color:rgba(255,255,255,.8)}
.mobile-drawer .nav-item.active{color:#fff}
.mobile-drawer .close-btn{position:absolute;top:18px;right:20px;color:#fff;font-size:32px;line-height:1;padding:8px;cursor:pointer;opacity:.8}
.mobile-drawer .drawer-customer{padding-top:24px;border-top:1px solid rgba(255,255,255,.12);display:flex;flex-direction:column;gap:12px}
.mobile-drawer .drawer-customer a{display:inline-flex;align-items:center;justify-content:center;padding:14px 24px;border-radius:999px;font-size:15px;font-weight:600}
.breadcrumb{padding:28px 0 8px;font-size:13px;color:var(--text-secondary)}
.breadcrumb a{color:var(--text-secondary)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{margin:0 8px;color:rgba(92,103,115,.5)}
.breadcrumb .current{color:var(--deep);font-weight:600}
.page-hero{position:relative;border-radius:var(--radius-lg);overflow:hidden;background:linear-gradient(120deg,var(--bg) 40%,var(--bg-alt)),url('/assets/images/backpic/back-1.png') center/cover;padding:64px 56px;margin:16px 0 40px;min-height:360px;display:flex;align-items:center;isolation:isolate}
.page-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(250,247,242,.92) 35%,rgba(250,247,242,.4) 70%,transparent);z-index:-1}
.page-hero::after{content:"";position:absolute;top:20px;right:28px;width:260px;height:260px;border-radius:50%;background:radial-gradient(circle,rgba(245,108,45,.10),transparent 70%);z-index:-1}
.hero-content{max-width:680px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(245,108,45,.10);border:1px solid rgba(245,108,45,.25);color:var(--primary);font-size:13px;font-weight:600;padding:6px 16px;border-radius:999px;margin-bottom:20px}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:#22c55e;box-shadow:0 0 0 3px rgba(34,197,94,.18)}
.page-hero h1{font-size:42px;line-height:1.25;font-weight:800;color:var(--deep);margin-bottom:18px;letter-spacing:-.5px}
.page-hero h1 span{color:var(--primary);border-bottom:5px solid rgba(245,108,45,.25)}
.page-hero p{font-size:16px;line-height:1.85;color:var(--text-secondary);margin-bottom:28px}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap}
.btn-primary{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 32px;border-radius:999px;background:var(--primary-grad);color:#fff;font-size:15px;font-weight:600;box-shadow:0 4px 18px rgba(245,108,45,.35);transition:var(--transition);border:none}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 28px rgba(245,108,45,.42);filter:brightness(1.05)}
.btn-primary:active{transform:translateY(0)}
.btn-primary:focus{outline:3px solid rgba(245,108,45,.25)}
.btn-outline{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 30px;border-radius:999px;background:transparent;border:1.5px solid var(--primary);color:var(--primary);font-size:15px;font-weight:600;transition:var(--transition)}
.btn-outline:hover{background:rgba(245,108,45,.08);transform:translateY(-1px)}
.btn-outline:focus{outline:3px solid rgba(245,108,45,.22)}
.section{padding:var(--space-lg) 0}
.section-head{display:flex;align-items:center;gap:12px;margin-bottom:40px}
.section-head .bar{width:4px;height:26px;border-radius:2px;background:var(--primary)}
.section-head h2{font-size:30px;font-weight:700;color:var(--deep);letter-spacing:-.3px}
.section-head .sub{font-size:14px;color:var(--text-secondary);margin-left:auto}
.topic-tabs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:48px}
.topic-tab{padding:8px 22px;border-radius:999px;background:var(--bg-alt);color:var(--deep);font-size:14px;font-weight:600;border:1px solid transparent;transition:var(--transition)}
.topic-tab:hover{border-color:rgba(245,108,45,.4);color:var(--primary)}
.topic-tab.active{background:var(--deep);color:#fff;border-color:var(--deep)}
.stat-row{background:var(--deep);border-radius:var(--radius-lg);padding:44px 48px;display:flex;align-items:center;gap:40px;margin-bottom:var(--space-lg);position:relative;overflow:hidden;box-shadow:var(--shadow-deep)}
.stat-row::before{content:"";position:absolute;top:-60px;left:30%;width:220px;height:220px;border-radius:50%;background:radial-gradient(circle,rgba(245,108,45,.12),transparent 70%);pointer-events:none}
.stat-row::after{content:"";position:absolute;bottom:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(245,108,45,.6),transparent)}
.stat-info{flex:0 0 30%}
.stat-info h3{font-size:22px;color:#fff;font-weight:700;margin-bottom:8px;line-height:1.4}
.stat-info p{font-size:13px;color:var(--text-light);line-height:1.7}
.stat-grid{flex:1;display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat-item{text-align:center}
.stat-item .num{font-size:36px;font-weight:800;color:var(--primary-light);font-family:"DIN Alternate","Bahnschrift",system-ui,sans-serif;line-height:1.2;margin-bottom:4px;background:linear-gradient(135deg,var(--primary),var(--primary-light));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.stat-item .label{font-size:13px;color:rgba(255,255,255,.65);line-height:1.5}
.section-alt{background:var(--card);border-radius:var(--radius-lg);padding:60px 48px;box-shadow:var(--shadow);margin-bottom:var(--space-lg)}
.guide-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.guide-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:var(--transition);display:flex;flex-direction:column}
.guide-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(245,108,45,.35)}
.guide-card .cover{position:relative;aspect-ratio:16/8;overflow:hidden}
.guide-card .cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.guide-card:hover .cover img{transform:scale(1.04)}
.guide-card .cover .tag{position:absolute;top:14px;left:14px;background:rgba(15,42,67,.85);color:#fff;font-size:12px;font-weight:500;padding:4px 14px;border-radius:999px;backdrop-filter:blur(4px)}
.guide-card .body{padding:24px 24px 22px;flex:1;display:flex;flex-direction:column}
.guide-card .body h3{font-size:19px;font-weight:700;color:var(--deep);margin-bottom:10px;line-height:1.45;transition:var(--transition)}
.guide-card .body h3:hover{color:var(--primary)}
.guide-card .body p{font-size:14px;color:var(--text-secondary);line-height:1.7;flex:1}
.guide-card .foot{dest:pointer;display:flex;align-items:center;justify-content:space-between;padding:16px 24px;border-top:1px solid rgba(15,42,67,.06)}
.guide-card .foot .link{font-size:14px;color:var(--primary);font-weight:600;display:inline-flex;align-items:center;gap:6px;transition:var(--transition)}
.guide-card .foot .link:hover{gap:10px}
.guide-card .foot .meta{font-size:12px;color:rgba(92,103,115,.7)}
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.scene-card{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);padding:32px 28px;transition:var(--transition);position:relative;overflow:hidden}
.scene-card::before{content:"";position:absolute;top:0;left:0;width:4px;height:100%;background:var(--primary-grad);opacity:0;transition:var(--transition)}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.scene-card:hover::before{opacity:1}
.scene-card .icon{width:48px;height:48px;border-radius:12px;background:rgba(245,108,45,.10);display:flex;align-items:center;justify-content:center;margin-bottom:18px}
.scene-card .icon svg{width:24px;height:24px;fill:none;stroke:var(--primary);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.scene-card h4{font-size:18px;font-weight:700;color:var(--deep);margin-bottom:10px}
.scene-card p{font-size:14px;color:var(--text-secondary);line-height:1.7}
.process-section{background:var(--bg);border-radius:var(--radius-lg);padding:60px 48px;margin-bottom:var(--space-lg);position:relative;overflow:hidden}
.process-section::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--primary),transparent)}
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative}
.process-grid::before{content:"";position:absolute;top:36px;left:8%;right:8%;height:2px;border-top:2px dashed rgba(15,42,67,.15)}
.process-step{text-align:center;padding:0 20px;position:relative}
.process-step .num{width:72px;height:72px;border-radius:50%;background:var(--primary-grad);color:#fff;font-size:24px;font-weight:800;display:flex;align-items:center;justify-content:center;margin:0 auto 20px;box-shadow:0 8px 24px rgba(245,108,45,.35);position:relative;z-index:1;border:4px solid var(--bg)}
.process-step h4{font-size:17px;font-weight:700;color:var(--deep);margin-bottom:10px}
.process-step p{font-size:13px;color:var(--text-secondary);line-height:1.6}
.process-step .type{display:inline-block;margin-top:14px;padding:4px 14px;background:rgba(15,42,67,.06);border-radius:999px;font-size:12px;color:var(--deep);font-weight:500}
.faq-grid{display:grid;grid-template-columns:300px 1fr;gap:40px;margin-bottom:var(--space-lg)}
.faq-side h2{font-size:28px;font-weight:700;color:var(--deep);margin-bottom:14px;line-height:1.3}
.faq-side p{font-size:14px;color:var(--text-secondary);margin-bottom:24px;line-height:1.7}
.faq-contact{background:var(--deep);border-radius:var(--radius);padding:24px 22px;display:flex;align-items:flex-start;gap:14px}
.faq-contact .contact-icon{width:40px;height:40px;border-radius:10px;background:rgba(245,108,45,.18);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.faq-contact .contact-icon svg{width:20px;height:20px;fill:none;stroke:var(--primary-light);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.faq-contact strong{display:block;color:#fff;font-size:14px;margin-bottom:6px}
.faq-contact span{font-size:12px;color:var(--text-light);line-height:1.6;display:block}
.faq-list{display:flex;flex-direction:column;gap:16px}
.faq-item{background:var(--card);border:1px solid var(--border);border-radius:14px;overflow:hidden;transition:var(--transition)}
.faq-item:hover{border-color:rgba(245,108,45,.25);box-shadow:var(--shadow)}
.faq-item.open{border-color:rgba(245,108,45,.35);box-shadow:var(--shadow)}
.faq-q{display:flex;align-items:center;justify-content:space-between;padding:20px 24px;cursor:pointer;gap:16px;user-select:none}
.faq-q h4{font-size:15px;font-weight:600;color:var(--deep);transition:var(--transition);line-height:1.5}
.faq-item:hover .faq-q h4{color:var(--primary)}
.faq-icon{width:28px;height:28px;border-radius:50%;background:var(--bg-alt);display:flex;align-items:center;justify-content:center;transition:var(--transition);flex-shrink:0;color:var(--deep)}
.faq-icon svg{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round}
.faq-item.open .faq-icon{background:var(--primary);color:#fff;transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease, padding .3s ease;padding:0 24px}
.faq-item.open .faq-a{max-height:420px;padding:0 24px 22px}
.faq-a .answer{padding-left:14px;border-left:3px solid var(--primary);font-size:14px;color:var(--text-secondary);line-height:1.85;margin-top:2px}
.cta-box{background:var(--deep);border-radius:var(--radius-lg);padding:56px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;position:relative;overflow:hidden;margin-bottom:0}
.cta-box::before{content:"";position:absolute;top:0;right:0;width:180px;height:180px;border-radius:50%;background:radial-gradient(circle,rgba(245,108,45,.14),transparent 70%);pointer-events:none}
.cta-left{display:flex;align-items:center;gap:20px}
.cta-left .bubble{width:56px;height:56px;border-radius:14px;background:var(--primary-grad);display:flex;align-items:center;justify-content:center;flex-shrink:0;box-shadow:0 8px 22px rgba(245,108,45,.4)}
.cta-left .bubble svg{width:26px;height:26px;fill:none;stroke:#fff;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.cta-left h3{color:#fff;font-size:24px;font-weight:700;margin-bottom:6px}
.cta-left p{color:var(--text-light);font-size:14px}
.cta-btns{display:flex;gap:14px;flex-wrap:wrap}
.cta-btns .btn-light{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 28px;border-radius:999px;background:#fff;color:var(--deep);font-size:14px;font-weight:700;transition:var(--transition)}
.cta-btns .btn-light:hover{background:var(--primary);color:#fff;transform:translateY(-2px);box-shadow:0 8px 24px rgba(245,108,45,.35)}
.cta-btns .btn-ghost{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 28px;border-radius:999px;background:transparent;border:1.5px solid rgba(255,255,255,.5);color:#fff;font-size:14px;font-weight:600;transition:var(--transition)}
.cta-btns .btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.08);transform:translateY(-2px)}
.footer{background:var(--deep);padding:64px 0 0;margin-top:var(--space-lg)}
.footer-grid{display:grid;grid-template-columns:5fr 3fr 4fr;gap:48px;padding-bottom:48px}
.footer-brand{display:flex;align-items:center;gap:14px;margin-bottom:18px}
.footer-logo{width:48px;height:48px;border-radius:12px;background:var(--primary-grad);display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:800;color:#fff;box-shadow:0 4px 14px rgba(245,108,45,.35)}
.footer-brand strong{color:#fff;font-size:20px;font-weight:700}
.footer-desc{font-size:14px;color:rgba(255,255,255,.6);line-height:1.8;margin-bottom:16px;max-width:340px}
.footer-icp{font-size:12px;color:rgba(255,255,255,.35)}
.footer h4{color:#fff;font-size:16px;font-weight:600;margin-bottom:20px;position:relative;padding-bottom:10px}
.footer h4::after{content:"";position:absolute;bottom:0;left:0;width:28px;height:2px;border-radius:1px;background:var(--primary)}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{font-size:13px;color:rgba(255,255,255,.6);display:inline-flex;align-items:center;gap:6px;transition:var(--transition)}
.footer-links a:hover{color:#fff;padding-left:8px;border-left:2px solid var(--primary)}
.footer-contact{display:flex;flex-direction:column;gap:14px}
.footer-contact p{display:flex;align-items:center;gap:10px;font-size:13px;color:rgba(255,255,255,.6)}
.footer-contact svg{width:16px;height:16px;fill:none;stroke:var(--primary-light);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}
.footer-copyright{border-top:1px solid rgba(255,255,255,.08);padding:24px 0;text-align:center;font-size:12px;color:rgba(255,255,255,.4)}
.footer-copyright span{margin:0 8px}
@media (max-width:1200px){
  :root{--space-lg:80px}
  .stat-row{flex-direction:column;align-items:flex-start;gap:32px}
  .stat-info{flex:auto}
  .stat-grid{width:100%}
  .cta-box{flex-direction:column;align-items:flex-start}
  .page-hero{padding:48px 40px}
}
@media (max-width:991px){
  .sidebar{display:none}
  .mobile-header{display:flex}
  .main{margin-left:0;padding-top:60px}
  .container{padding:0 20px}
  .page-hero{min-height:auto;padding:44px 28px;margin:12px 0 32px}
  .page-hero h1{font-size:32px}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .guide-grid{grid-template-columns:1fr;gap:20px}
  .scene-grid{grid-template-columns:1fr;gap:20px}
  .process-grid{grid-template-columns:repeat(2,1fr);gap:32px 16px}
  .process-grid::before{display:none}
  .faq-grid{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr;gap:36px}
  .section-alt{padding:40px 24px}
  .process-section{padding:40px 24px}
  .stat-row{padding:32px 24px}
  .cta-box{padding:36px 24px}
}
@media (max-width:768px){
  .section-head{margin-bottom:28px;flex-wrap:wrap}
  .section-head .sub{width:100%;margin-left:0;padding-left:16px}
  .page-hero h1{font-size:28px}
  .hero-content p{font-size:15px}
  .hero-btns .btn-primary,.hero-btns .btn-outline{padding:12px 24px;font-size:14px}
  .stat-grid{grid-template-columns:1fr 1fr;gap:16px}
  .stat-item .num{font-size:30px}
}
@media (max-width:576px){
  .page-hero{padding:36px 20px}
  .page-hero h1{font-size:25px;line-height:1.35}
  .page-hero p{font-size:14px}
  .hero-badge{font-size:12px}
  .topic-tabs{gap:8px}
  .topic-tab{padding:6px 16px;font-size:13px}
  .guide-card .body{padding:18px}
  .guide-card .foot{padding:14px 18px}
  .process-grid{grid-template-columns:1fr;gap:24px}
  .process-step{max-width:260px;margin:0 auto}
  .stat-row{padding:28px 20px}
  .section-alt{padding:32px 18px}
  .process-section{padding:32px 18px}
  .cta-box{padding:28px 20px}
  .cta-left{flex-direction:column;align-items:flex-start;gap:14px}
  .cta-left h3{font-size:19px}
  .cta-btns{width:100%}
  .cta-btns .btn-light,.cta-btns .btn-ghost{flex:1;justify-content:center;padding:12px 16px;font-size:13px}
  .footer{padding-top:42px}
  .footer-grid{gap:28px}
  .breadcrumb{font-size:12px;padding:20px 0 4px}
}

/* roulang page: article */
:root {
    --primary: #F56C2D;
    --primary-light: #FF8A4C;
    --primary-glow: rgba(245, 108, 45, 0.12);
    --secondary: #0F2A43;
    --secondary-deep: #081E30;
    --bg: #Faf7F2;
    --bg-alt: #F0EDE8;
    --card: #FFFFFF;
    --text: #2B2B2B;
    --text-muted: #5C6773;
    --text-light: rgba(255, 255, 255, 0.78);
    --border: rgba(15, 42, 67, 0.08);
    --border-deep: rgba(15, 42, 67, 0.12);
    --radius: 16px;
    --radius-sm: 10px;
    --radius-xs: 6px;
    --shadow: 0 2px 12px rgba(15, 42, 67, 0.06);
    --shadow-lg: 0 8px 28px rgba(15, 42, 67, 0.10);
    --shadow-dark: 0 6px 20px rgba(0, 0, 0, 0.18);
    --transition: all 0.3s ease;
    --font-main: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-main); font-size: 16px; line-height: 1.8; color: var(--text); background: var(--bg); -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; }
.container { max-width: 1320px; margin: 0 auto; padding-left: 24px; padding-right: 24px; }

.btn-primary {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 14px 32px; background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: #fff; font-size: 16px; font-weight: 600; border: none; border-radius: 999px;
    box-shadow: 0 4px 14px rgba(245, 108, 45, 0.35); transition: var(--transition); cursor: pointer;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(245, 108, 45, 0.45); filter: brightness(1.08); }
.btn-primary:active { transform: translateY(0); }
.btn-primary:focus, .btn-outline:focus, .btn-light:focus { outline: 3px solid rgba(245, 108, 45, 0.25); outline-offset: 2px; }
.btn-outline {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 13px 30px; background: transparent; color: var(--primary);
    font-size: 16px; font-weight: 600; border: 1.5px solid var(--primary);
    border-radius: 999px; transition: var(--transition); cursor: pointer;
}
.btn-outline:hover { background: var(--primary-glow); transform: translateY(-2px); }
.btn-light {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 13px 32px; background: #fff; color: var(--secondary);
    font-size: 16px; font-weight: 600; border: none; border-radius: 999px; transition: var(--transition); cursor: pointer;
}
.btn-light:hover { background: var(--primary-light); color: #fff; transform: translateY(-2px); }

.sidebar {
    position: fixed; left: 0; top: 0; width: 260px; height: 100vh;
    background: var(--secondary); display: flex; flex-direction: column; z-index: 1000;
    overflow-y: auto;
}
.sidebar-brand { padding: 28px 24px 20px; border-bottom: 1px solid rgba(255, 255, 255, 0.12); }
.sidebar-brand a { display: flex; align-items: center; gap: 12px; }
.brand-logo {
    width: 42px; height: 42px; background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: 12px; display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 20px; font-weight: 800; flex-shrink: 0;
}
.brand-text { display: flex; flex-direction: column; }
.brand-text strong { color: #fff; font-size: 18px; font-weight: 700; line-height: 1.3; }
.brand-text span { color: rgba(255, 255, 255, 0.6); font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase; margin-top: 2px; }

.sidebar-nav { flex: 1; padding: 20px 12px; display: flex; flex-direction: column; gap: 6px; }
.sidebar-nav .nav-item {
    display: flex; align-items: center; gap: 12px; padding: 14px 20px;
    color: rgba(255, 255, 255, 0.72); font-size: 17px; font-weight: 600;
    border-radius: 10px; transition: var(--transition); position: relative;
}
.sidebar-nav .nav-item svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; }
.sidebar-nav .nav-item:hover { background: rgba(255, 255, 255, 0.06); color: #fff; }
.sidebar-nav .nav-item:hover::before { content: ""; position: absolute; left: -12px; top: 50%; transform: translateY(-50%); width: 4px; height: 24px; background: var(--primary); border-radius: 0 4px 4px 0; }
.sidebar-nav .nav-item.active { background: rgba(255, 255, 255, 0.08); color: #fff; }
.sidebar-nav .nav-item.active::before { content: ""; position: absolute; left: -12px; top: 50%; transform: translateY(-50%); width: 4px; height: 28px; background: var(--primary); border-radius: 0 4px 4px 0; }

.sidebar-footer { padding: 20px 24px; border-top: 1px solid rgba(255, 255, 255, 0.12); }
.support-btn {
    display: block; width: 100%; padding: 10px 16px;
    border: 1px solid rgba(255, 255, 255, 0.35); border-radius: 999px;
    background: transparent; color: #fff; font-size: 13px; text-align: center; transition: var(--transition);
}
.support-btn:hover { background: rgba(255, 255, 255, 0.12); border-color: rgba(255, 255, 255, 0.6); }
.sidebar-footer p { color: rgba(255, 255, 255, 0.4); font-size: 11px; text-align: center; margin-top: 14px; }

.mobile-header { display: none; }
.mobile-drawer { display: none; }
.drawer-overlay { display: none; }

.main-content { margin-left: 260px; min-height: 100vh; display: flex; flex-direction: column; }
.page-main { flex: 1; padding-bottom: 20px; }

.breadcrumb-bar { padding: 30px 0 10px; }
.breadcrumb { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; font-size: 14px; color: var(--text-muted); }
.breadcrumb a { color: var(--text-muted); transition: var(--transition); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { color: rgba(15, 42, 67, 0.3); }
.breadcrumb .current { color: var(--secondary); font-weight: 500; }

.article-wrap { max-width: 860px; margin: 0 auto; padding: 24px 0 0; }
.article-card { background: var(--card); border-radius: var(--radius); border: 1px solid var(--border); box-shadow: var(--shadow); padding: 48px 56px; }
.article-title { font-size: 36px; font-weight: 700; color: var(--secondary); line-height: 1.35; margin-bottom: 20px; }
.article-meta { display: flex; align-items: center; flex-wrap: wrap; gap: 14px; padding-bottom: 24px; border-bottom: 1px solid var(--border); margin-bottom: 34px; }
.meta-item { font-size: 13px; color: var(--text-muted); display: inline-flex; align-items: center; gap: 6px; }
.meta-item.meta-category { color: var(--primary); font-weight: 600; background: rgba(245, 108, 45, 0.08); padding: 3px 12px; border-radius: 999px; }

.article-body p { font-size: 17px; line-height: 1.9; margin-bottom: 28px; color: var(--text); }
.article-body p:first-of-type::first-letter { font-size: 46px; font-weight: 700; float: left; margin: 8px 10px 0 0; color: var(--secondary); line-height: 1; }
.article-body h2 { font-size: 28px; font-weight: 700; color: var(--secondary); margin: 48px 0 20px; padding-left: 16px; border-left: 4px solid var(--primary); line-height: 1.4; }
.article-body h3 { font-size: 22px; font-weight: 700; color: var(--secondary); margin: 32px 0 16px; }
.article-body h4 { font-size: 18px; font-weight: 600; color: var(--secondary); margin: 24px 0 12px; }
.article-body strong { color: var(--secondary); font-weight: 700; }
.article-body a { color: var(--primary); text-decoration: underline; }
.article-body a:hover { text-decoration: none; }
.article-body ul, .article-body ol { margin: 20px 0; padding-left: 24px; }
.article-body ul li { list-style-type: none; position: relative; padding-left: 18px; margin-bottom: 10px; }
.article-body ul li::before { content: ""; position: absolute; left: 0; top: 10px; width: 7px; height: 7px; background: var(--primary); border-radius: 50%; }
.article-body ol { counter-reset: article-ol; }
.article-body ol li { list-style-type: none; counter-increment: article-ol; position: relative; padding-left: 32px; margin-bottom: 10px; }
.article-body ol li::before { content: counter(article-ol) "."; position: absolute; left: 0; color: var(--primary); font-weight: 600; }
.article-body blockquote { margin: 28px 0; padding: 20px 24px; background: var(--bg-alt); border-left: 4px solid var(--primary); font-style: italic; font-size: 16px; border-radius: 0 var(--radius-sm) var(--radius-sm) 0; color: var(--text-muted); }
.article-body img { width: 100%; border-radius: 12px; margin: 32px 0; border: 1px solid var(--border); }
.article-body table { width: 100%; border-collapse: collapse; margin: 24px 0; overflow-x: auto; display: block; }
.article-body table th, .article-body table td { border: 1px solid var(--border-deep); padding: 12px 16px; text-align: left; }
.article-body table th { background: var(--bg-alt); font-weight: 600; color: var(--secondary); }
.article-body pre, .article-body code { font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace; }
.article-body pre { background: var(--secondary); color: #fff; padding: 20px 24px; border-radius: 12px; overflow-x: auto; margin: 24px 0; font-size: 14px; line-height: 1.7; }
.article-body code { background: rgba(245, 108, 45, 0.08); color: var(--primary); padding: 2px 6px; border-radius: 4px; font-size: 14px; }
.article-body pre code { background: transparent; color: #fff; padding: 0; border-radius: 0; }

.article-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--border); }
.tag { display: inline-flex; align-items: center; gap: 5px; padding: 5px 14px; background: rgba(245, 108, 45, 0.08); color: var(--primary); font-size: 12px; font-weight: 500; border-radius: 999px; }
.article-share { display: flex; align-items: center; gap: 10px; margin-top: 20px; }
.article-share > span { font-size: 14px; color: var(--text-muted); }
.share-btn { width: 36px; height: 36px; border-radius: 50%; border: 1px solid var(--border-deep); display: flex; align-items: center; justify-content: center; color: var(--text-muted); transition: var(--transition); background: transparent; }
.share-btn:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-glow); }
.share-btn svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 1.8; }

.article-actions { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; max-width: 860px; margin: 32px auto 0; }

.not-found-card { max-width: 860px; margin: 32px auto 0; background: var(--card); border-radius: var(--radius); border: 1px solid var(--border); box-shadow: var(--shadow); padding: 64px 48px; text-align: center; }
.not-found-card .nf-icon { width: 56px; height: 56px; margin: 0 auto 20px; border-radius: 50%; background: var(--bg-alt); display: flex; align-items: center; justify-content: center; }
.not-found-card .nf-icon svg { width: 26px; height: 26px; fill: none; stroke: var(--primary); stroke-width: 1.8; }
.not-found-card h2 { font-size: 28px; color: var(--secondary); margin-bottom: 12px; }
.not-found-card p { color: var(--text-muted); margin-bottom: 28px; }

.related-section { max-width: 1100px; margin: 64px auto 0; }
.related-section .section-title { font-size: 24px; font-weight: 700; color: var(--secondary); margin-bottom: 24px; padding-left: 14px; border-left: 4px solid var(--primary); }
.related-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.related-card { display: flex; gap: 16px; background: var(--card); border-radius: var(--radius); border: 1px solid var(--border); padding: 16px; transition: var(--transition); }
.related-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); border-color: rgba(245, 108, 45, 0.35); }
.related-thumb { width: 120px; height: 90px; flex-shrink: 0; border-radius: 8px; overflow: hidden; }
.related-thumb img { width: 100%; height: 100%; object-fit: cover; }
.related-info { display: flex; flex-direction: column; gap: 6px; }
.related-info h3 { font-size: 16px; font-weight: 600; color: var(--secondary); line-height: 1.5; }
.related-info p { font-size: 13px; color: var(--text-muted); line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.related-meta { font-size: 12px; color: rgba(92, 103, 115, 0.7); }

.article-cta { max-width: 1100px; margin: 48px auto 0; background: linear-gradient(120deg, rgba(15, 42, 67, 0.92), rgba(15, 42, 67, 0.85)), url('/assets/images/backpic/back-3.webp'); background-size: cover; background-position: center; border-radius: 20px; padding: 40px 48px; display: flex; justify-content: space-between; align-items: center; gap: 24px; flex-wrap: wrap; box-shadow: var(--shadow-dark); }
.article-cta h3 { color: #fff; font-size: 24px; font-weight: 700; margin-bottom: 6px; }
.article-cta p { color: rgba(255, 255, 255, 0.78); font-size: 15px; }

.footer {
    background: var(--secondary);
    color: rgba(255, 255, 255, 0.78);
    flex-shrink: 0;
    margin-top: 64px;
    padding: 56px 0 0;
}
.footer-grid {
    display: grid;
    grid-template-columns: 5fr 3fr 4fr;
    gap: 40px;
    padding-bottom: 32px;
}
.footer-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.footer-logo {
    width: 38px; height: 38px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 18px; font-weight: 800;
}
.footer-brand strong { color: #fff; font-size: 18px; font-weight: 700; }
.footer-desc { font-size: 14px; line-height: 1.8; color: rgba(255, 255, 255, 0.6); max-width: 420px; }
.footer-icp { font-size: 13px; color: rgba(255, 255, 255, 0.5); margin-top: 16px; }
.footer h4 { color: #fff; font-size: 16px; font-weight: 600; margin-bottom: 16px; }
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { font-size: 13px; color: rgba(255, 255, 255, 0.6); transition: var(--transition); position: relative; }
.footer-links a:hover { color: #fff; padding-left: 10px; }
.footer-links a:hover::before { content: ""; position: absolute; left: 0; top: 50%; transform: translateY(-50%); width: 3px; height: 14px; background: var(--primary); border-radius: 3px; }
.footer-contact { display: flex; flex-direction: column; gap: 14px; }
.footer-contact p { font-size: 13px; color: rgba(255, 255, 255, 0.6); display: flex; align-items: center; gap: 10px; }
.footer-contact svg { width: 18px; height: 18px; fill: none; stroke: var(--primary-light); stroke-width: 1.8; flex-shrink: 0; }
.footer-copyright { border-top: 1px solid rgba(255, 255, 255, 0.08); text-align: center; font-size: 12px; color: rgba(255, 255, 255, 0.5); padding: 20px 0; }

@media (max-width: 1199px) {
    .article-card { padding: 40px; }
    .related-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 991px) {
    .sidebar { display: none; }
    .main-content { margin-left: 0; }
    .mobile-header {
        display: flex; position: sticky; top: 0; height: 60px; padding: 0 20px;
        align-items: center; justify-content: space-between;
        background: rgba(255, 255, 255, 0.94); backdrop-filter: blur(12px);
        border-bottom: 1px solid var(--border); z-index: 1100;
    }
    .hamburger { width: 40px; height: 40px; background: transparent; border: none; display: flex; align-items: center; justify-content: center; color: var(--secondary); }
    .hamburger svg { width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; }
    .mobile-brand { font-size: 17px; font-weight: 700; color: var(--secondary); display: flex; align-items: center; gap: 8px; }
    .mobile-brand .brand-logo { width: 28px; height: 28px; border-radius: 8px; font-size: 14px; }
    .mobile-login { padding: 7px 20px; border-radius: 999px; background: linear-gradient(135deg, var(--primary), var(--primary-light)); color: #fff; font-size: 14px; font-weight: 600; }
    .mobile-drawer {
        display: block; position: fixed; top: 0; right: 0; width: 300px; height: 100vh;
        background: var(--secondary); z-index: 1200; padding: 24px;
        transform: translateX(100%); transition: transform 0.35s ease; overflow-y: auto;
    }
    .mobile-drawer.open { transform: translateX(0); box-shadow: -10px 0 30px rgba(0, 0, 0, 0.25); }
    .drawer-overlay {
        display: block; position: fixed; inset: 0; background: rgba(0, 0, 0, 0.45);
        z-index: 1150; opacity: 0; pointer-events: none; transition: opacity 0.3s ease;
    }
    .drawer-overlay.show { opacity: 1; pointer-events: auto; }
    .mobile-drawer .drawer-brand { display: flex; align-items: center; gap: 10px; padding-bottom: 20px; border-bottom: 1px solid rgba(255, 255, 255, 0.12); margin-bottom: 16px; color: #fff; }
    .mobile-drawer .drawer-brand .brand-logo { width: 34px; height: 34px; border-radius: 9px; font-size: 16px; }
    .mobile-drawer .drawer-brand strong { font-size: 18px; }
    .mobile-drawer .drawer-nav { display: flex; flex-direction: column; gap: 4px; }
    .mobile-drawer .drawer-nav a { color: rgba(255, 255, 255, 0.82); font-size: 22px; font-weight: 600; line-height: 2.6; padding: 10px 14px; border-radius: 10px; transition: var(--transition); display: flex; align-items: center; gap: 12px; }
    .mobile-drawer .drawer-nav a:hover { background: rgba(255, 255, 255, 0.08); color: #fff; padding-left: 20px; }
    .mobile-drawer .drawer-nav a svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 1.8; }
    .mobile-drawer .drawer-cta { margin-top: 32px; }
    .mobile-drawer .drawer-cta a { display: block; text-align: center; padding: 14px 20px; border-radius: 999px; background: linear-gradient(135deg, var(--primary), var(--primary-light)); color: #fff; font-weight: 600; margin-bottom: 12px; }
    .mobile-drawer .drawer-cta a.ghost { background: transparent; border: 1px solid rgba(255, 255, 255, 0.3); }
    .breadcrumb-bar { padding-top: 20px; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 767px) {
    .article-card { padding: 28px 20px; }
    .article-title { font-size: 26px; }
    .article-meta { gap: 10px; }
    .article-body p { font-size: 16px; }
    .article-body p:first-of-type::first-letter { font-size: 16px; font-weight: 400; float: none; margin: 0; }
    .article-body h2 { font-size: 23px; padding-left: 12px; }
    .article-body h3 { font-size: 19px; }
    .related-grid { grid-template-columns: 1fr; }
    .article-cta { padding: 28px 24px; flex-direction: column; align-items: flex-start; }
    .article-actions { flex-direction: column; align-items: stretch; }
    .article-actions .btn { width: 100%; }
    .footer-grid { grid-template-columns: 1fr; gap: 24px; }
    .footer-copyright { font-size: 11px; }
}
@media (max-width: 575px) {
    .container { padding-left: 16px; padding-right: 16px; }
    .article-title { font-size: 22px; }
    .breadcrumb { font-size: 13px; }
    .related-thumb { width: 100px; height: 76px; }
    .article-cta h3 { font-size: 20px; }
}