/* roulang page: index */
:root {
  --primary: #6d5cfa;
  --primary-dark: #5545d8;
  --primary-light: rgba(109, 92, 250, 0.12);
  --secondary: #00c6ff;
  --accent: #ffb020;
  --bg: #f5f6fb;
  --card-bg: #ffffff;
  --text: #1b2240;
  --text-muted: #66718b;
  --border: #e7eaf3;
  --sidebar-bg: #0d1226;
  --sidebar-bg-2: #141a38;
  --sidebar-text: #aab3cc;
  --radius: 18px;
  --radius-sm: 12px;
  --shadow: 0 10px 36px rgba(25, 32, 72, 0.08);
  --shadow-hover: 0 16px 48px rgba(25, 32, 72, 0.14);
  --transition: 0.25s ease;
  --sidebar-width: 260px;
}

* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 16px;
  overflow-x: hidden;
}
img {
  max-width: 100%;
  display: block;
}
a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition);
}
button,
input,
select,
textarea {
  font-family: inherit;
}
p {
  margin-top: 0;
}
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  line-height: 1.35;
  margin: 0 0 12px;
}
:focus-visible {
  outline: 3px solid rgba(109, 92, 250, 0.45);
  outline-offset: 2px;
  border-radius: 6px;
}

.container {
  max-width: 1240px;
  padding-left: 20px;
  padding-right: 20px;
}

/* ============ 按钮 ============ */
.btn {
  border-radius: 12px;
  padding: 10px 22px;
  font-weight: 600;
  border: 0;
  transition: all var(--transition);
}
.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 26px rgba(25, 32, 72, 0.16);
}
.btn:active {
  transform: translateY(0);
  box-shadow: 0 4px 12px rgba(25, 32, 72, 0.14);
}
.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--primary-dark);
  color: #fff;
}
.btn-warning {
  background: var(--accent);
  color: #1b2240;
  border: 0;
}
.btn-warning:hover {
  background: #e69e0e;
  color: #1b2240;
}
.btn-outline-light {
  border: 1.5px solid rgba(255, 255, 255, 0.7);
  color: #fff;
  background: transparent;
}
.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.14);
  border-color: #fff;
  color: #fff;
}
.btn-outline-primary {
  border: 1.5px solid var(--primary);
  color: var(--primary);
  background: transparent;
}
.btn-outline-primary:hover {
  background: var(--primary);
  color: #fff;
}
.btn-lg {
  padding: 13px 30px;
  font-size: 17px;
  border-radius: 14px;
}
.btn-sm {
  padding: 6px 14px;
  font-size: 14px;
  border-radius: 9px;
}

/* ============ 侧边导航 ============ */
.app-sidebar {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--sidebar-width);
  background: linear-gradient(180deg, var(--sidebar-bg) 0%, var(--sidebar-bg-2) 100%);
  z-index: 1045;
  display: flex;
  flex-direction: column;
  color: var(--sidebar-text);
  transition: transform 0.32s ease;
  box-shadow: 4px 0 28px rgba(10, 14, 32, 0.18);
}
.sidebar-brand {
  padding: 26px 22px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 19px;
  font-weight: 800;
  color: #fff;
  letter-spacing: 0.5px;
}
.brand i {
  font-size: 23px;
  color: var(--accent);
}
.sidebar-nav {
  padding: 20px 14px;
  flex: 1;
  overflow-y: auto;
}
.nav-label {
  font-size: 12px;
  letter-spacing: 1.6px;
  color: rgba(255, 255, 255, 0.32);
  padding: 0 12px;
  margin-bottom: 10px;
  display: block;
  text-transform: uppercase;
}
.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: 12px;
  color: var(--sidebar-text);
  font-size: 15px;
  margin-bottom: 5px;
  transition: all var(--transition);
}
.nav-link i {
  width: 20px;
  text-align: center;
  font-size: 16px;
  opacity: 0.75;
}
.nav-link:hover {
  background: rgba(255, 255, 255, 0.07);
  color: #fff;
}
.nav-link.active {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 8px 24px rgba(109, 92, 250, 0.35);
}
.nav-link.active i {
  opacity: 1;
}
.sidebar-status {
  margin: 12px 18px 18px;
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.sidebar-status .status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 0 4px rgba(34, 197, 94, 0.18);
  flex-shrink: 0;
}
.sidebar-status strong {
  display: block;
  color: #fff;
  font-size: 14px;
  line-height: 1.3;
}
.sidebar-status span {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.55);
}
.sidebar-footer {
  padding: 16px 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}
.sidebar-footer a {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--sidebar-text);
}
.sidebar-footer a:hover {
  color: #fff;
}

/* ============ 移动顶栏 ============ */
.app-header {
  position: sticky;
  top: 0;
  z-index: 1050;
  display: none;
  background: rgba(13, 18, 38, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: 12px 16px;
  color: #fff;
}
.app-header-inner {
  display: flex;
  align-items: center;
  gap: 14px;
}
.menu-toggle {
  background: rgba(255, 255, 255, 0.1);
  border: 0;
  color: #fff;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  font-size: 17px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}
.menu-toggle:hover {
  background: rgba(255, 255, 255, 0.2);
}
.header-brand {
  font-weight: 800;
  font-size: 18px;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 8px;
}
.header-brand i {
  color: var(--accent);
}
.header-cta {
  margin-left: auto;
  padding: 7px 16px;
  font-size: 13px;
}
.sidebar-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(13, 18, 38, 0.55);
  z-index: 1040;
  opacity: 0;
  transition: opacity 0.3s ease;
}
.sidebar-backdrop.show {
  display: block;
  opacity: 1;
}

/* ============ 主内容区 ============ */
.app-main {
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ============ Hero ============ */
.hero {
  position: relative;
  padding: 96px 0 88px;
  color: #fff;
  overflow: hidden;
  background: var(--sidebar-bg);
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center 30%;
  opacity: 0.4;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(10, 14, 32, 0.8) 20%, rgba(10, 14, 32, 0.55) 60%, rgba(10, 14, 32, 0.35) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
}
.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: 7px 18px;
  border-radius: 40px;
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 24px;
  backdrop-filter: blur(6px);
}
.hero-badge i {
  color: var(--accent);
}
.hero h1 {
  font-size: 46px;
  font-weight: 800;
  margin-bottom: 18px;
  letter-spacing: 1px;
}
.hero-sub {
  font-size: 17px;
  max-width: 620px;
  color: rgba(255, 255, 255, 0.82);
  margin-bottom: 32px;
  line-height: 1.8;
}
.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}
.hero-stats {
  display: flex;
  gap: 0;
  flex-wrap: wrap;
  margin-top: 8px;
}
.hs-item {
  padding: 0 30px;
  border-right: 1px solid rgba(255, 255, 255, 0.18);
  display: flex;
  flex-direction: column;
}
.hs-item:first-child {
  padding-left: 0;
}
.hs-item:last-child {
  border-right: 0;
}
.hs-num {
  font-size: 26px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1.2;
}
.hs-label {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 4px;
}
.hero-visual {
  display: flex;
  align-items: center;
  justify-content: flex-end;
}
.hero-card {
  width: 340px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 22px;
  padding: 24px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.25);
}
.hero-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}
.hero-card-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 15px;
}
.hero-card-title i {
  color: var(--secondary);
}
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  padding: 4px 12px;
  border-radius: 30px;
  font-weight: 600;
}
.status-badge.ok {
  background: rgba(34, 197, 94, 0.18);
  color: #4ade80;
}
.status-badge .status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #22c55e;
}
.hero-metric {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.75);
}
.hero-metric strong {
  color: #fff;
  font-size: 15px;
}
.hero-card .progress {
  background: rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  height: 6px;
  margin-bottom: 18px;
  overflow: hidden;
}
.hero-card .progress-bar {
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  border-radius: 8px;
}
.hero-card .btn {
  margin-top: 4px;
}

/* ============ 通用 section ============ */
.section {
  padding: 88px 0;
}
.section-white {
  background: #fff;
}
.section-light {
  background: #f5f6fb;
}
.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 48px;
}
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--primary-light);
  color: var(--primary);
  padding: 6px 18px;
  border-radius: 40px;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 14px;
}
.section-head h2 {
  font-size: 30px;
  font-weight: 800;
  margin-bottom: 12px;
}
.section-head p {
  color: var(--text-muted);
  font-size: 16px;
  margin-bottom: 0;
}

/* ============ 核心说明 ============ */
.feature-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 26px;
  height: 100%;
  transition: all var(--transition);
}
.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: transparent;
}
.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}
.feature-card p {
  color: var(--text-muted);
  font-size: 14px;
  margin-bottom: 0;
  line-height: 1.75;
}

/* ============ 分类入口 ============ */
.category-section {
  background: linear-gradient(180deg, #f5f6fb 0%, #ece9ff 100%);
}
.category-card {
  display: block;
  position: relative;
  border-radius: 22px;
  overflow: hidden;
  background: #fff;
  box-shadow: var(--shadow);
  transition: all var(--transition);
  height: 100%;
  border: 1px solid transparent;
}
.category-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(109, 92, 250, 0.2);
}
.category-img {
  width: 100%;
  height: 230px;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.category-card:hover .category-img {
  transform: scale(1.04);
}
.category-body {
  padding: 28px;
  position: relative;
}
.category-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: 40px;
  margin-bottom: 14px;
}
.category-body h3 {
  font-size: 21px;
  font-weight: 800;
  margin-bottom: 10px;
}
.category-body p {
  color: var(--text-muted);
  font-size: 14px;
  margin-bottom: 18px;
  line-height: 1.7;
}
.category-link {
  color: var(--primary);
  font-weight: 600;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.category-link i {
  transition: transform var(--transition);
}
.category-card:hover .category-link i {
  transform: translateX(5px);
}

/* ============ 最新资讯 ============ */
.news-list {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 12px 22px;
  box-shadow: var(--shadow);
}
.news-row {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 17px 6px;
  border-bottom: 1px solid #f1f3f9;
  transition: all var(--transition);
  border-radius: 12px;
}
.news-row:last-child {
  border-bottom: 0;
}
.news-row:hover {
  background: #f8f7ff;
  padding-left: 16px;
}
.news-index {
  font-size: 14px;
  font-weight: 800;
  color: #c3c9dc;
  min-width: 26px;
}
.news-tag {
  background: var(--primary-light);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 30px;
  white-space: nowrap;
}
.news-title {
  flex: 1;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.news-date {
  color: var(--text-muted);
  font-size: 13px;
  white-space: nowrap;
}
.news-arrow {
  color: #c3c9dc;
  font-size: 13px;
  transition: all var(--transition);
}
.news-row:hover .news-arrow {
  color: var(--primary);
  transform: translateX(4px);
}
.empty-list {
  padding: 40px 20px;
  text-align: center;
  color: var(--text-muted);
  font-size: 15px;
  border-radius: 12px;
}
.news-aside {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 22px;
  overflow: hidden;
  box-shadow: var(--shadow);
  height: 100%;
  display: flex;
  flex-direction: column;
}
.news-aside img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}
.news-aside-body {
  padding: 26px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.news-aside-body h3 {
  font-size: 20px;
  font-weight: 800;
  margin-bottom: 10px;
}
.news-aside-body p {
  color: var(--text-muted);
  font-size: 14px;
  margin-bottom: 20px;
}
.news-aside-body .btn {
  margin-top: auto;
  align-self: flex-start;
}

/* ============ 数据带 ============ */
.stats-band {
  position: relative;
  padding: 80px 0;
  background: var(--sidebar-bg);
  overflow: hidden;
}
.stats-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("/assets/images/backpic/back-2.png");
  background-size: cover;
  background-position: center;
  opacity: 0.16;
}
.stats-band .container {
  position: relative;
  z-index: 2;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}
.stat-item {
  padding: 30px 20px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 20px;
  transition: all var(--transition);
}
.stat-item:hover {
  background: rgba(255, 255, 255, 0.09);
  transform: translateY(-4px);
}
.stat-num {
  display: block;
  font-size: 38px;
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
  margin-bottom: 6px;
}
.stat-label {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
}
.stat-item:nth-child(1) .stat-num {
  color: var(--accent);
}
.stat-item:nth-child(2) .stat-num {
  color: var(--secondary);
}
.stat-item:nth-child(3) .stat-num {
  color: #b794f6;
}
.stat-item:nth-child(4) .stat-num {
  color: #4ade80;
}

/* ============ 热门游戏 ============ */
.game-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 18px;
  overflow: hidden;
  transition: all var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
}
.game-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}
.game-thumb {
  position: relative;
  overflow: hidden;
}
.game-thumb img {
  width: 100%;
  height: 170px;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.game-card:hover .game-thumb img {
  transform: scale(1.05);
}
.game-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(13, 18, 38, 0.72);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 30px;
  backdrop-filter: blur(6px);
}
.game-badge.hot {
  background: linear-gradient(90deg, #ff6b6b, #ff8e53);
}
.game-info {
  padding: 22px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.game-info h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 6px;
}
.game-cat {
  font-size: 12px;
  color: var(--primary);
  background: var(--primary-light);
  padding: 3px 12px;
  border-radius: 30px;
  display: inline-block;
  align-self: flex-start;
  margin-bottom: 10px;
  font-weight: 600;
}
.game-info p {
  color: var(--text-muted);
  font-size: 13px;
  line-height: 1.65;
  margin-bottom: 16px;
  flex: 1;
}
.game-info .btn {
  align-self: flex-start;
}

/* ============ 使用流程 ============ */
.process-section {
  background: #fff;
}
.process-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  counter-reset: step;
}
.process-step {
  position: relative;
  text-align: center;
  padding: 44px 28px 36px;
  background: #f8f7ff;
  border: 1px solid var(--border);
  border-radius: 22px;
  transition: all var(--transition);
}
.process-step:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
  background: #fff;
}
.step-num {
  width: 64px;
  height: 64px;
  line-height: 64px;
  margin: 0 auto 20px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  font-size: 22px;
  font-weight: 800;
  border-radius: 18px;
  box-shadow: 0 12px 28px rgba(109, 92, 250, 0.3);
}
.process-step h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}
.process-step p {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 0;
}
.process-steps {
  position: relative;
}
.process-steps::before {
  content: "";
  position: absolute;
  top: 80px;
  left: 16%;
  right: 16%;
  height: 2px;
  background: linear-gradient(90deg, var(--primary-light), var(--primary), var(--secondary));
  border-radius: 2px;
}
.process-step {
  background: var(--bg);
}
.process-step:hover {
  background: #fff;
}

/* ============ FAQ ============ */
.faq-section {
  background: #f5f6fb;
}
.custom-accordion {
  border-radius: 18px;
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}
.accordion-item {
  border: 0;
  border-bottom: 1px solid #f1f3f9;
  background: transparent;
}
.accordion-item:last-child {
  border-bottom: 0;
}
.accordion-button {
  background: transparent;
  color: var(--text);
  font-weight: 600;
  font-size: 16px;
  padding: 20px 24px;
  box-shadow: none !important;
  border-radius: 0 !important;
}
.accordion-button:hover {
  background: #f8f7ff;
}
.accordion-button:not(.collapsed) {
  background: transparent;
  color: var(--primary);
}
.accordion-button::after {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%236d5cfa'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
}
.accordion-body {
  padding: 4px 24px 22px;
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.8;
}

/* ============ CTA ============ */
.cta-section {
  padding: 90px 0;
  position: relative;
}
.cta-card {
  position: relative;
  border-radius: 28px;
  padding: 64px 48px;
  background: linear-gradient(120deg, #0d1226 0%, #1d1a4a 60%, #2a1d63 100%);
  overflow: hidden;
  text-align: center;
  color: #fff;
}
.cta-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("/assets/images/backpic/back-3.png");
  background-size: cover;
  background-position: center;
  opacity: 0.22;
}
.cta-content {
  position: relative;
  z-index: 2;
}
.cta-content h2 {
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 14px;
}
.cta-content p {
  color: rgba(255, 255, 255, 0.78);
  font-size: 16px;
  max-width: 620px;
  margin: 0 auto 30px;
}
.cta-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ============ 页脚 ============ */
.site-footer {
  background: var(--sidebar-bg);
  color: var(--sidebar-text);
  padding: 56px 0 0;
  margin-top: auto;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 40px;
  padding-bottom: 36px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}
.footer-brand .brand {
  margin-bottom: 14px;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.55);
  max-width: 360px;
  margin-bottom: 0;
}
.footer-links h4 {
  color: #fff;
  font-size: 15px;
  margin-bottom: 16px;
}
.footer-links a {
  display: block;
  padding: 5px 0;
  font-size: 14px;
  color: var(--sidebar-text);
}
.footer-links a:hover {
  color: #fff;
  padding-left: 6px;
}
.footer-bottom {
  padding: 22px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
}

/* ============ 分隔线 ============ */
.divider {
  width: 56px;
  height: 4px;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  margin: 0 auto 22px;
}

/* ============ 响应式 ============ */
@media (max-width: 1199.98px) {
  .app-sidebar {
    transform: translateX(-100%);
  }
  .app-sidebar.open {
    transform: translateX(0);
  }
  .app-header {
    display: block;
  }
  .app-main {
    margin-left: 0;
  }
  .hero h1 {
    font-size: 38px;
  }
  .hero {
    padding: 68px 0 60px;
  }
}
@media (max-width: 991.98px) {
  .section {
    padding: 64px 0;
  }
  .hero-stats {
    gap: 16px 0;
  }
  .hero-visual {
    display: none !important;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  .process-steps {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .process-steps::before {
    display: none;
  }
  .cta-card {
    padding: 44px 28px;
  }
}
@media (max-width: 767.98px) {
  .hero h1 {
    font-size: 30px;
  }
  .hero-sub {
    font-size: 15px;
  }
  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }
  .hs-item {
    padding: 0 18px;
  }
  .hs-num {
    font-size: 22px;
  }
  .section-head h2 {
    font-size: 24px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .news-row {
    flex-wrap: wrap;
    gap: 8px 12px;
  }
  .news-title {
    width: 100%;
    white-space: normal;
    order: 3;
  }
  .news-date {
    margin-left: auto;
  }
  .news-index {
    display: none;
  }
}
@media (max-width: 519.98px) {
  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
  .stat-num {
    font-size: 28px;
  }
  .cta-content h2 {
    font-size: 24px;
  }
  .cta-actions .btn {
    width: 100%;
  }
}

/* roulang page: category1 */
/* ============ 设计变量 ============ */
        :root {
            --primary: #00e0a4;
            --primary-dark: #00b87e;
            --primary-glow: rgba(0, 224, 164, 0.35);
            --accent: #6c5ce7;
            --accent-light: #a29bfe;
            --bg-dark: #0b0f1a;
            --bg-deep: #070b13;
            --bg-card: #121926;
            --bg-card-hover: #1a2333;
            --bg-band: #0f1623;
            --text-main: #e8ecf4;
            --text-sub: #94a3b8;
            --text-weak: #64748b;
            --border-color: rgba(148, 163, 184, 0.15);
            --radius-lg: 18px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-sm: 0 4px 14px rgba(0, 0, 0, 0.25);
            --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.3);
            --shadow-glow: 0 0 28px var(--primary-glow);
            --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --sidebar-width: 240px;
        }

        /* ============ 基础 Reset & Base ============ */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg-dark);
            color: var(--text-main);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

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

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

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

        button {
            cursor: pointer;
            border: none;
            background: none;
            font-family: inherit;
        }

        /* ============ 容器 ============ */
        .container-custom {
            width: 100%;
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 24px;
            position: relative;
        }

        /* ============ App Shell 布局 ============ */
        .app-shell {
            display: flex;
            min-height: 100vh;
        }

        /* ============ 侧边导航 ============ */
        .sidebar {
            width: var(--sidebar-width);
            background: linear-gradient(180deg, #0d1422 0%, #0a0f1a 100%);
            border-right: 1px solid var(--border-color);
            padding: 32px 20px;
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            z-index: 1040;
            display: flex;
            flex-direction: column;
            transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            box-shadow: 2px 0 30px rgba(0, 0, 0, 0.2);
        }

        .sidebar-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 8px 10px 28px;
            border-bottom: 1px solid var(--border-color);
            margin-bottom: 24px;
        }

        .sidebar-brand .brand-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 20px;
            flex-shrink: 0;
            box-shadow: 0 0 18px var(--primary-glow);
        }

        .sidebar-brand .brand-name {
            font-size: 18px;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: 0.5px;
            line-height: 1.3;
            white-space: nowrap;
        }

        .sidebar-brand .brand-name span {
            color: var(--primary);
        }

        .nav-label {
            font-size: 12px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 2px;
            color: var(--text-weak);
            padding: 0 12px;
            margin-bottom: 10px;
            display: block;
        }

        .sidebar-nav {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .nav-link-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 14px;
            border-radius: var(--radius-md);
            color: var(--text-sub);
            font-size: 15px;
            font-weight: 500;
            transition: var(--transition);
            position: relative;
            border: 1px solid transparent;
        }

        .nav-link-item i {
            width: 20px;
            text-align: center;
            font-size: 16px;
        }

        .nav-link-item:hover {
            color: var(--primary);
            background: rgba(0, 224, 164, 0.06);
            transform: translateX(3px);
        }

        .nav-link-item.active {
            color: var(--primary);
            background: rgba(0, 224, 164, 0.1);
            border-color: rgba(0, 224, 164, 0.2);
            box-shadow: 0 0 16px rgba(0, 224, 164, 0.08);
        }

        .nav-link-item.active::before {
            content: "";
            position: absolute;
            left: -20px;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 22px;
            background: var(--primary);
            border-radius: 0 3px 3px 0;
            box-shadow: 0 0 10px var(--primary-glow);
        }

        .sidebar-footer {
            margin-top: auto;
            padding-top: 24px;
            border-top: 1px solid var(--border-color);
            font-size: 12px;
            color: var(--text-weak);
            text-align: center;
        }

        .sidebar-footer i {
            margin-right: 6px;
        }

        /* ============ 移动端顶栏 ============ */
        .mobile-topbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1035;
            background: rgba(11, 15, 26, 0.9);
            -webkit-backdrop-filter: blur(12px);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            padding: 12px 20px;
            align-items: center;
            justify-content: space-between;
        }

        .mobile-topbar .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 17px;
            font-weight: 800;
            color: var(--text-main);
        }

        .mobile-topbar .brand i {
            color: var(--primary);
            font-size: 20px;
        }

        .hamburger-btn {
            width: 42px;
            height: 42px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-main);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .hamburger-btn:hover {
            background: rgba(0, 224, 164, 0.1);
            color: var(--primary);
        }

        /* 移动端抽屉遮罩 */
        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.6);
            z-index: 1038;
            -webkit-backdrop-filter: blur(2px);
            backdrop-filter: blur(2px);
            opacity: 0;
            transition: opacity 0.3s;
        }

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

        /* ============ 主内容区 ============ */
        .main-content {
            flex: 1;
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            position: relative;
        }

        /* ============ Hero/Banner 区 ============ */
        .category-hero {
            position: relative;
            padding: 100px 0 80px;
            background: linear-gradient(135deg, rgba(11, 15, 26, 0.92) 0%, rgba(11, 15, 26, 0.72) 50%, rgba(0, 224, 164, 0.12) 100%),
                url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            border-bottom: 1px solid var(--border-color);
            overflow: hidden;
        }

        .category-hero::after {
            content: "";
            position: absolute;
            top: -40%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(0, 224, 164, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }

        .category-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(0, 224, 164, 0.1);
            border: 1px solid rgba(0, 224, 164, 0.25);
            border-radius: 50px;
            padding: 6px 16px;
            font-size: 13px;
            color: var(--primary);
            font-weight: 600;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }

        .category-hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 16px;
            color: #fff;
            letter-spacing: 1px;
        }

        .category-hero h1 .highlight {
            color: var(--primary);
            position: relative;
        }

        .category-hero p.lead {
            font-size: 1.05rem;
            color: var(--text-sub);
            max-width: 640px;
            margin-bottom: 28px;
            line-height: 1.8;
        }

        .hero-stats {
            display: flex;
            gap: 36px;
            margin-top: 36px;
            flex-wrap: wrap;
        }

        .hero-stat {
            text-align: center;
            padding: 20px 28px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            backdrop-filter: blur(6px);
        }

        .hero-stat .number {
            display: block;
            font-size: 28px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }

        .hero-stat .label {
            font-size: 13px;
            color: var(--text-weak);
            margin-top: 4px;
        }

        /* ============ 通用按钮 ============ */
        .btn-custom {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            border-radius: var(--radius-md);
            font-size: 15px;
            font-weight: 600;
            padding: 14px 30px;
            border: none;
            transition: var(--transition);
            letter-spacing: 0.3px;
        }

        .btn-primary-custom {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: #0b0f1a;
            box-shadow: 0 4px 20px rgba(0, 224, 164, 0.25);
        }

        .btn-primary-custom:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 30px rgba(0, 224, 164, 0.4);
            color: #0b0f1a;
        }

        .btn-outline-custom {
            background: transparent;
            color: var(--text-main);
            border: 1px solid rgba(148, 163, 184, 0.35);
        }

        .btn-outline-custom:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(0, 224, 164, 0.06);
            transform: translateY(-3px);
        }

        .btn-ghost {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid transparent;
            color: var(--text-main);
        }

        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.12);
        }

        /* ============ 板块 ============ */
        .section-block {
            padding: 80px 0;
            position: relative;
        }

        .section-block--alt {
            background: var(--bg-band);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

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

        .section-header {
            margin-bottom: 48px;
        }

        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            color: var(--primary);
            background: rgba(0, 224, 164, 0.08);
            border: 1px solid rgba(0, 224, 164, 0.2);
            padding: 5px 16px;
            border-radius: 50px;
            margin-bottom: 14px;
            letter-spacing: 0.8px;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.35;
            margin-bottom: 12px;
        }

        .section-desc {
            font-size: 1rem;
            color: var(--text-sub);
            max-width: 680px;
            line-height: 1.8;
        }

        .section-center {
            text-align: center;
        }

        .section-center .section-desc {
            margin-left: auto;
            margin-right: auto;
        }

        /* ============ 下载平台卡片 ============ */
        .download-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .download-card {
            background: linear-gradient(145deg, #131c2b 0%, #0e1522 100%);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            text-align: center;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .download-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, transparent, var(--primary), transparent);
            opacity: 0;
            transition: var(--transition);
        }

        .download-card:hover {
            transform: translateY(-8px);
            border-color: rgba(0, 224, 164, 0.3);
            box-shadow: var(--shadow-md), 0 0 30px rgba(0, 224, 164, 0.06);
        }

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

        .download-card .card-icon {
            width: 64px;
            height: 64px;
            border-radius: 18px;
            background: linear-gradient(135deg, rgba(0, 224, 164, 0.15), rgba(0, 224, 164, 0.05));
            border: 1px solid rgba(0, 224, 164, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
            color: var(--primary);
            margin: 0 auto 20px;
        }

        .download-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
        }

        .download-card .platform-label {
            font-size: 13px;
            color: var(--primary);
            background: rgba(0, 224, 164, 0.1);
            display: inline-block;
            padding: 3px 12px;
            border-radius: 50px;
            margin-bottom: 14px;
        }

        .download-card p {
            font-size: 13px;
            color: var(--text-weak);
            margin-bottom: 18px;
            line-height: 1.7;
        }

        .download-card .file-info {
            font-size: 12px;
            color: var(--text-weak);
            background: rgba(255, 255, 255, 0.03);
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            margin-bottom: 16px;
            display: flex;
            justify-content: center;
            gap: 16px;
        }

        .download-card .file-info span i {
            margin-right: 4px;
            color: var(--primary);
            font-size: 11px;
        }

        .btn-download {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            border-radius: var(--radius-md);
            padding: 10px 24px;
            background: rgba(0, 224, 164, 0.1);
            color: var(--primary);
            border: 1px solid rgba(0, 224, 164, 0.25);
            transition: var(--transition);
        }

        .btn-download:hover {
            background: var(--primary);
            color: #0b0f1a;
            border-color: var(--primary);
            box-shadow: 0 4px 18px rgba(0, 224, 164, 0.3);
            transform: translateY(-2px);
        }

        .btn-download i {
            font-size: 14px;
        }

        /* ============ 下载流程 ============ */
        .steps-wrap {
            position: relative;
        }

        .steps-wrap::before {
            content: "";
            position: absolute;
            top: 40px;
            left: 50%;
            width: 80%;
            height: 2px;
            background: linear-gradient(90deg, transparent, rgba(0, 224, 164, 0.4), transparent);
            transform: translateX(-50%);
        }

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
            z-index: 2;
        }

        .step-item {
            text-align: center;
            padding: 30px 20px;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            backdrop-filter: blur(4px);
        }

        .step-item:hover {
            border-color: rgba(0, 224, 164, 0.35);
        }

        .step-number {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 18px;
            margin: 0 auto 20px;
            box-shadow: 0 0 20px var(--primary-glow);
        }

        .step-item h3 {
            font-size: 17px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }

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

        /* ============ 下载要点/特色 ============ */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .feature-item {
            display: flex;
            gap: 16px;
            padding: 28px 24px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            transition: var(--transition);
        }

        .feature-item:hover {
            border-color: rgba(0, 224, 164, 0.25);
            box-shadow: var(--shadow-sm);
            transform: translateY(-4px);
        }

        .feature-item .feature-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            flex-shrink: 0;
        }

        .feature-item .feature-icon--green {
            background: rgba(0, 224, 164, 0.1);
            color: var(--primary);
        }

        .feature-item .feature-icon--purple {
            background: rgba(108, 92, 231, 0.15);
            color: var(--accent-light);
        }

        .feature-item .feature-icon--gold {
            background: rgba(255, 159, 67, 0.12);
            color: #ff9f43;
        }

        .feature-item h3 {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
        }

        .feature-item p {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ============ 图文物块 ============ */
        .media-block {
            display: flex;
            align-items: center;
            gap: 48px;
            padding: 40px;
            background: linear-gradient(145deg, #121a29 0%, #0e1522 100%);
            border: 1px solid var(--border-color);
            border-radius: 20px;
            box-shadow: var(--shadow-sm);
        }

        .media-block.reverse {
            flex-direction: row-reverse;
        }

        .media-block .media-image {
            flex: 1;
            min-width: 0;
        }

        .media-block .media-image img {
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-md);
            width: 100%;
            object-fit: cover;
            height: 300px;
        }

        .media-block .media-content {
            flex: 1;
        }

        .media-block .media-content h2 {
            font-size: 1.6rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            line-height: 1.4;
        }

        .media-block .media-content p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.9;
            margin-bottom: 14px;
        }

        .media-block .media-content ul {
            list-style: none;
            padding: 0;
            margin: 0 0 20px;
        }

        .media-block .media-content ul li {
            padding: 6px 0;
            font-size: 14px;
            color: var(--text-sub);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .media-block .media-content ul li i {
            color: var(--primary);
            font-size: 13px;
        }

        /* ============ 版本对比 ============ */
        .compare-table-wrap {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
        }

        .compare-table th {
            padding: 16px 24px;
            text-align: left;
            font-size: 14px;
            font-weight: 700;
            color: var(--text-main);
            background: rgba(0, 224, 164, 0.08);
            border-bottom: 1px solid var(--border-color);
        }

        .compare-table td {
            padding: 14px 24px;
            font-size: 14px;
            color: var(--text-sub);
            border-bottom: 1px solid rgba(148, 163, 184, 0.08);
        }

        .compare-table tr:last-child td {
            border-bottom: none;
        }

        .compare-table tr:hover td {
            background: rgba(255, 255, 255, 0.02);
        }

        .compare-table td.highlight {
            color: var(--primary);
            font-weight: 600;
        }

        /* ============ FAQ ============ */
        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(0, 224, 164, 0.2);
        }

        .faq-item summary {
            padding: 20px 24px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 12px;
            list-style: none;
            transition: var(--transition);
            user-select: none;
        }

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

        .faq-item summary i {
            color: var(--primary);
            font-size: 15px;
            flex-shrink: 0;
        }

        .faq-item summary .faq-arrow {
            margin-left: auto;
            font-size: 12px;
            color: var(--text-weak);
            transition: var(--transition);
        }

        .faq-item[open] summary .faq-arrow {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-item[open] {
            border-color: rgba(0, 224, 164, 0.3);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
        }

        .faq-answer {
            padding: 0 24px 20px 51px;
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.8;
        }

        /* ============ CTA ============ */
        .cta-section {
            padding: 80px 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            position: relative;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(7, 11, 19, 0.95) 0%, rgba(11, 15, 26, 0.85) 100%);
        }

        .cta-content {
            position: relative;
            text-align: center;
            max-width: 720px;
            margin: 0 auto;
        }

        .cta-content h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 18px;
            line-height: 1.3;
        }

        .cta-content p {
            font-size: 1rem;
            color: var(--text-sub);
            margin-bottom: 32px;
            line-height: 1.8;
        }

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

        /* ============ 页脚 ============ */
        .site-footer {
            background: var(--bg-deep);
            border-top: 1px solid var(--border-color);
            padding: 50px 0 0;
            position: relative;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            gap: 40px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(148, 163, 184, 0.08);
        }

        .footer-brand .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-brand .brand i {
            color: var(--primary);
            font-size: 24px;
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.8;
            max-width: 380px;
            margin-bottom: 0;
        }

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

        .footer-links a {
            display: block;
            color: var(--text-sub);
            font-size: 14px;
            padding: 5px 0;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: var(--primary);
            padding-left: 6px;
        }

        .footer-bottom {
            padding: 20px 0;
            text-align: center;
        }

        .footer-bottom p {
            font-size: 13px;
            color: var(--text-weak);
            margin-bottom: 0;
        }

        /* ============ 响应式断点 ============ */
        @media (max-width: 1200px) {
            .download-grid {
                grid-template-columns: repeat(4, 1fr);
                gap: 16px;
            }

            .download-card {
                padding: 24px 16px;
            }

            .steps-grid {
                grid-template-columns: repeat(4, 1fr);
                gap: 16px;
            }
        }

        @media (max-width: 992px) {
            :root {
                --sidebar-width: 0px;
            }

            .sidebar {
                transform: translateX(-100%);
                width: 260px;
                box-shadow: 6px 0 40px rgba(0, 0, 0, 0.5);
            }

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

            .mobile-topbar {
                display: flex;
            }

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

            .main-content {
                margin-left: 0;
                padding-top: 66px;
            }

            .category-hero {
                padding: 70px 0 50px;
            }

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

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

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

            .steps-wrap::before {
                display: none;
            }

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

            .media-block {
                flex-direction: column;
                padding: 24px;
            }

            .media-block.reverse {
                flex-direction: column;
            }

            .media-block .media-image img {
                height: 220px;
            }

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

        @media (max-width: 768px) {
            .section-block {
                padding: 56px 0;
            }

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

            .category-hero h1 {
                font-size: 1.7rem;
            }

            .hero-stats {
                gap: 16px;
            }

            .hero-stat {
                padding: 14px 18px;
                flex: 1;
            }

            .hero-stat .number {
                font-size: 22px;
            }

            .btn-custom {
                padding: 12px 22px;
                font-size: 14px;
            }

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

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

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

            .compare-table {
                font-size: 13px;
            }

            .compare-table th,
            .compare-table td {
                padding: 10px 14px;
            }
        }

        @media (max-width: 520px) {
            .container-custom {
                padding: 0 16px;
            }

            .mobile-topbar {
                padding: 10px 14px;
            }

            .category-hero {
                padding: 52px 0 40px;
                text-align: center;
            }

            .category-hero p.lead {
                font-size: 0.92rem;
            }

            .hero-stats {
                justify-content: center;
            }

            .hero-stat {
                min-width: 100px;
            }

            .section-title {
                font-size: 1.35rem;
            }

            .section-desc {
                font-size: 0.9rem;
            }

            .cta-content h2 {
                font-size: 1.6rem;
            }

            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }

            .cta-buttons .btn-custom {
                width: 100%;
                justify-content: center;
            }

            .footer-bottom p {
                font-size: 12px;
            }
        }

        /* ============ 关于禁用 Bootstrap 默认 ============ */
        .btn:focus,
        .btn:active:focus,
        .form-control:focus {
            box-shadow: none;
        }

/* roulang page: article */
:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --primary-soft: #eff6ff;
    --accent: #06b6d4;
    --accent-soft: #cffafe;
    --dark-bg: #0f172a;
    --dark-bg-2: #1e293b;
    --body-bg: #f8fafc;
    --card-bg: #ffffff;
    --text-dark: #0f172a;
    --text-body: #334155;
    --text-light: #64748b;
    --text-faint: #94a3b8;
    --border-color: #e2e8f0;
    --radius-lg: 16px;
    --radius-md: 12px;
    --radius-sm: 8px;
    --shadow-xs: 0 1px 2px rgba(15,23,42,.06);
    --shadow-sm: 0 1px 3px rgba(15,23,42,.08);
    --shadow-md: 0 4px 16px rgba(15,23,42,.08);
    --shadow-lg: 0 16px 40px rgba(15,23,42,.12);
    --transition-fast: .2s ease;
    --transition-normal: .35s ease;
    --sidebar-w: 260px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif; background: var(--body-bg); color: var(--text-body); line-height: 1.7; -webkit-font-smoothing: antialiased; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
button, input { font: inherit; }
.app-shell { min-height: 100vh; }
.app-sidebar { position: fixed; left: 0; top: 0; bottom: 0; width: var(--sidebar-w); background: linear-gradient(180deg, #0f172a, #1e293b); z-index: 1050; display: flex; flex-direction: column; padding: 28px 18px 20px; border-right: 1px solid rgba(255,255,255,.06); overflow-y: auto; }
.brand { display: flex; align-items: center; gap: 10px; padding: 0 10px 28px; border-bottom: 1px solid rgba(255,255,255,.08); margin-bottom: 24px; color: #fff; font-size: 20px; font-weight: 700; letter-spacing: .5px; }
.brand-icon { width: 40px; height: 40px; border-radius: 12px; background: linear-gradient(135deg, var(--primary), var(--accent)); display: flex; align-items: center; justify-content: center; font-size: 18px; color: #fff; box-shadow: 0 4px 12px rgba(37,99,235,.4); flex-shrink: 0; }
.sidebar-nav { display: flex; flex-direction: column; gap: 6px; }
.nav-label { font-size: 12px; letter-spacing: 2px; color: rgba(255,255,255,.4); padding: 0 12px; margin-bottom: 8px; text-transform: uppercase; }
.nav-link { display: flex; align-items: center; gap: 12px; padding: 12px 14px; border-radius: 12px; color: rgba(255,255,255,.65); font-size: 15px; font-weight: 500; transition: var(--transition-fast); position: relative; }
.nav-link i { width: 20px; text-align: center; font-size: 16px; }
.nav-link:hover { background: rgba(255,255,255,.06); color: #fff; transform: translateX(4px); }
.nav-link.active { background: linear-gradient(135deg, var(--primary), var(--primary-light)); color: #fff; box-shadow: 0 4px 16px rgba(37,99,235,.4); }
.app-content { margin-left: var(--sidebar-w); min-height: 100vh; display: flex; flex-direction: column; background: var(--body-bg); }
.app-main { flex: 1; padding: 48px 0 70px; }
.article-wrap { max-width: 920px; margin: 0 auto; padding: 0 24px; }
.breadcrumb-nav { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--text-faint); margin-bottom: 18px; flex-wrap: wrap; }
.breadcrumb-nav a { color: var(--text-light); transition: var(--transition-fast); }
.breadcrumb-nav a:hover { color: var(--primary); }
.breadcrumb-nav i { font-size: 11px; color: #cbd5e1; }
.article-header { margin-bottom: 32px; }
.article-category-badge { display: inline-flex; align-items: center; gap: 6px; background: var(--primary-soft); color: var(--primary); font-size: 13px; font-weight: 600; padding: 6px 14px; border-radius: 100px; margin-bottom: 16px; }
.article-title { font-size: clamp(1.7rem, 3vw, 2.4rem); font-weight: 800; color: var(--text-dark); line-height: 1.35; margin-bottom: 16px; letter-spacing: -.02em; }
.article-meta { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; font-size: 13.5px; color: var(--text-faint); }
.article-meta .meta-item { display: inline-flex; align-items: center; gap: 6px; }
.article-meta .meta-item i { color: var(--text-faint); }
.article-cover { margin-bottom: 36px; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-md); aspect-ratio: 16 / 7.5; position: relative; background: var(--dark-bg); }
.article-cover img { width: 100%; height: 100%; object-fit: cover; }
.article-content { background: var(--card-bg); padding: 40px 48px; border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); border: 1px solid var(--border-color); margin-bottom: 36px; }
.article-content h2 { font-size: 1.55rem; font-weight: 700; color: var(--text-dark); margin: 2rem 0 1rem; padding-bottom: .6rem; border-bottom: 2px solid var(--border-color); }
.article-content h3 { font-size: 1.25rem; font-weight: 600; color: var(--text-dark); margin: 1.6rem 0 .75rem; }
.article-content p { font-size: 1.0625rem; line-height: 1.9; color: var(--text-body); margin-bottom: 1.3rem; }
.article-content ul, .article-content ol { margin: 1rem 0 1.4rem 1.5rem; }
.article-content li { font-size: 1.0625rem; line-height: 1.85; color: var(--text-body); margin-bottom: .5rem; }
.article-content img { max-width: 100%; border-radius: var(--radius-md); margin: 1.6rem auto; box-shadow: var(--shadow-sm); }
.article-content a { color: var(--primary); border-bottom: 1px solid rgba(37,99,235,.3); transition: var(--transition-fast); }
.article-content a:hover { color: var(--primary-dark); border-bottom-color: var(--primary); }
.article-content blockquote { border-left: 4px solid var(--primary); background: var(--primary-soft); padding: 1.1rem 1.5rem; border-radius: 0 var(--radius-md) var(--radius-md) 0; margin: 1.6rem 0; color: var(--text-dark); font-weight: 500; }
.article-content pre { background: var(--dark-bg); color: #e2e8f0; padding: 1.25rem 1.5rem; border-radius: var(--radius-md); overflow-x: auto; margin: 1.6rem 0; font-size: .925rem; line-height: 1.7; }
.article-content code { background: #f1f5f9; color: #b45309; padding: .15em .45em; border-radius: 6px; font-size: .9em; }
.article-content pre code { background: transparent; color: inherit; padding: 0; }
.article-content table { width: 100%; border-collapse: collapse; margin: 1.6rem 0; font-size: .95rem; }
.article-content th, .article-content td { border: 1px solid var(--border-color); padding: 10px 14px; text-align: left; }
.article-content th { background: #f8fafc; font-weight: 600; }
.article-tags { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; padding: 28px 0 4px; border-top: 1px solid var(--border-color); margin-top: 32px; }
.tag-item { display: inline-flex; align-items: center; gap: 6px; background: #f1f5f9; color: var(--text-light); font-size: 13px; padding: 6px 14px; border-radius: 100px; transition: var(--transition-fast); }
.tag-item:hover { background: var(--accent-soft); color: #0e7490; }
.cta-section { position: relative; border-radius: var(--radius-lg); overflow: hidden; padding: 52px 40px; text-align: center; background: linear-gradient(135deg, rgba(15,23,42,.92), rgba(30,41,59,.85)), url('/assets/images/backpic/back-2.png') center/cover no-repeat; color: #fff; margin-bottom: 52px; }
.cta-icon { width: 64px; height: 64px; margin: 0 auto 20px; border-radius: 18px; background: linear-gradient(135deg, var(--primary), var(--accent)); display: flex; align-items: center; justify-content: center; font-size: 26px; box-shadow: 0 8px 32px rgba(37,99,235,.5); }
.cta-section h3 { font-size: 1.6rem; font-weight: 700; margin-bottom: 10px; color: #fff; }
.cta-section p { color: rgba(255,255,255,.75); max-width: 520px; margin: 0 auto 24px; font-size: 15px; }
.btn-cta { display: inline-flex; align-items: center; gap: 8px; background: var(--primary); color: #fff; border: none; padding: 14px 32px; border-radius: 100px; font-size: 15px; font-weight: 600; transition: var(--transition-fast); box-shadow: 0 4px 20px rgba(37,99,235,.4); }
.btn-cta:hover { background: var(--primary-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 28px rgba(37,99,235,.45); }
.btn-cta:focus { outline: 3px solid rgba(37,99,235,.35); outline-offset: 2px; }
.related-section { margin-bottom: 10px; }
.related-section .section-header { display: flex; align-items: center; gap: 12px; margin-bottom: 24px; }
.related-section .section-header h2 { font-size: 1.4rem; font-weight: 700; color: var(--text-dark); margin: 0; }
.section-tag { display: inline-block; background: var(--accent-soft); color: #0e7490; font-size: 12px; font-weight: 600; padding: 5px 12px; border-radius: 100px; letter-spacing: .5px; }
.related-card { display: block; background: var(--card-bg); border: 1px solid var(--border-color); border-radius: var(--radius-md); padding: 22px; height: 100%; transition: var(--transition-normal); box-shadow: var(--shadow-xs); }
.related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: rgba(37,99,235,.3); }
.related-cat { display: inline-block; background: var(--primary-soft); color: var(--primary); font-size: 12px; font-weight: 600; padding: 4px 10px; border-radius: 100px; margin-bottom: 12px; }
.related-card h3 { font-size: 1.02rem; font-weight: 600; color: var(--text-dark); line-height: 1.5; margin-bottom: 10px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; min-height: 3em; }
.related-card p { font-size: .875rem; color: var(--text-light); line-height: 1.65; margin-bottom: 14px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.related-meta { display: flex; align-items: center; justify-content: space-between; font-size: 12.5px; color: var(--text-faint); border-top: 1px solid var(--border-color); padding-top: 12px; }
.related-meta .read-more { display: inline-flex; align-items: center; gap: 4px; color: var(--primary); font-weight: 500; transition: var(--transition-fast); }
.related-card:hover .read-more { transform: translateX(3px); }
.article-not-found { text-align: center; padding: 80px 20px; background: var(--card-bg); border-radius: var(--radius-lg); border: 1px solid var(--border-color); box-shadow: var(--shadow-sm); margin-bottom: 40px; }
.not-found-icon { width: 72px; height: 72px; margin: 0 auto 22px; border-radius: 20px; background: #fef3c7; color: #d97706; display: flex; align-items: center; justify-content: center; font-size: 30px; }
.article-not-found h2 { font-size: 1.7rem; font-weight: 700; color: var(--text-dark); margin-bottom: 12px; }
.article-not-found p { color: var(--text-light); margin-bottom: 28px; }
.btn-primary-custom { display: inline-flex; align-items: center; gap: 8px; background: var(--primary); color: #fff; border: none; padding: 13px 30px; border-radius: 100px; font-weight: 600; transition: var(--transition-fast); }
.btn-primary-custom:hover { background: var(--primary-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(37,99,235,.4); }
.btn-primary-custom:focus { outline: 3px solid rgba(37,99,235,.35); outline-offset: 2px; }
.site-footer { background: var(--dark-bg); color: rgba(255,255,255,.6); padding: 48px 0 24px; margin-top: 20px; }
.site-footer .container { max-width: 1200px; padding: 0 24px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 36px; padding-bottom: 32px; border-bottom: 1px solid rgba(255,255,255,.08); }
.footer-brand .brand { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 14px; padding: 0; border: none; font-size: 18px; }
.footer-brand .brand .brand-icon { width: 34px; height: 34px; font-size: 15px; border-radius: 10px; }
.footer-brand p { font-size: 13.5px; line-height: 1.75; color: rgba(255,255,255,.5); max-width: 420px; margin-bottom: 0; }
.footer-links h4 { color: #fff; font-size: 15px; font-weight: 600; margin-bottom: 16px; }
.footer-links a { display: flex; align-items: center; gap: 8px; color: rgba(255,255,255,.55); font-size: 14px; padding: 6px 0; transition: var(--transition-fast); }
.footer-links a:hover { color: var(--primary-light); transform: translateX(4px); }
.footer-links a i { font-size: 11px; }
.footer-bottom { padding-top: 24px; text-align: center; font-size: 13px; color: rgba(255,255,255,.35); }
.footer-bottom p { margin-bottom: 0; }
@media (max-width: 1199.98px) {
    .article-wrap { max-width: 840px; }
}
@media (max-width: 991.98px) {
    :root { --sidebar-w: 220px; }
}
@media (max-width: 767.98px) {
    .app-sidebar { position: fixed; top: 0; left: 0; right: 0; bottom: auto; width: 100%; height: auto; padding: 12px 16px; flex-direction: row; align-items: center; border-bottom: 1px solid rgba(255,255,255,.1); border-right: none; border-radius: 0; z-index: 1060; }
    .app-sidebar .brand { padding: 0; border: none; margin: 0 14px 0 0; font-size: 17px; flex-shrink: 0; }
    .brand-icon { width: 34px; height: 34px; font-size: 15px; border-radius: 10px; }
    .sidebar-nav { flex-direction: row; overflow-x: auto; gap: 4px; flex: 1; margin: 0; padding: 0; scrollbar-width: none; white-space: nowrap; }
    .sidebar-nav::-webkit-scrollbar { display: none; }
    .nav-label { display: none; }
    .nav-link { padding: 9px 14px; font-size: 14px; border-radius: 10px; white-space: nowrap; }
    .nav-link:hover { transform: none; }
    .nav-link.active { transform: none; }
    .app-content { margin-left: 0; padding-top: 68px; }
    .app-main { padding: 30px 0 50px; }
    .article-wrap { padding: 0 16px; }
    .article-content { padding: 24px 22px; }
    .cta-section { padding: 40px 22px; }
    .footer-grid { grid-template-columns: 1fr; gap: 24px; }
}
@media (max-width: 575.98px) {
    .app-sidebar { padding: 10px 12px; }
    .app-sidebar .brand { font-size: 15px; margin-right: 10px; }
    .brand-icon { width: 30px; height: 30px; font-size: 13px; }
    .nav-link { padding: 8px 10px; font-size: 13px; gap: 6px; }
    .article-title { font-size: 1.45rem; }
    .article-meta { gap: 10px; font-size: 12.5px; }
    .article-content { padding: 20px 18px; }
    .cta-section { padding: 32px 18px; }
    .cta-section h3 { font-size: 1.25rem; }
    .related-card { padding: 18px; }
    .site-footer .container { padding: 0 16px; }
}

/* roulang page: category2 */
/* ============================================================
       设计变量 — 9游官网入口 · 平台指南页
       ============================================================ */
    :root {
      --primary: #0b1522;
      --primary-light: #152638;
      --primary-extra: #1d3350;
      --accent: #06b6d4;
      --accent-hover: #0891b2;
      --accent-soft: rgba(6, 182, 212, 0.12);
      --gold: #f59e0b;
      --bg: #f0f4f8;
      --bg-soft: #e9eef5;
      --card-bg: #ffffff;
      --text: #111827;
      --text-light: #6b7280;
      --text-mute: #9ca3af;
      --border: #e2e8f0;
      --radius: 16px;
      --radius-sm: 10px;
      --radius-lg: 24px;
      --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
      --shadow-hover: 0 12px 32px rgba(0, 0, 0, 0.12);
      --transition: all 0.3s ease;
      --sidebar-width: 264px;
      --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
    }

    /* ============================================================
       基础 Reset / Base
       ============================================================ */
    *,
    *::before,
    *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    html {
      scroll-behavior: smooth;
      scroll-padding-top: 88px;
    }

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

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

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

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

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

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

    /* ============================================================
       侧边栏（左侧 App Shell 导航）
       ============================================================ */
    .app-sidebar {
      position: fixed;
      top: 0;
      left: 0;
      bottom: 0;
      width: var(--sidebar-width);
      background: var(--primary);
      z-index: 1050;
      padding: 0;
      display: flex;
      flex-direction: column;
      border-right: 1px solid rgba(255, 255, 255, 0.06);
    }

    .sidebar-inner {
      padding: 28px 22px;
      display: flex;
      flex-direction: column;
      height: 100%;
      overflow-y: auto;
    }

    .sidebar-brand {
      display: flex;
      align-items: center;
      gap: 12px;
      color: #fff;
      font-size: 20px;
      font-weight: 700;
      letter-spacing: 0.3px;
      margin-bottom: 36px;
      padding: 8px 10px;
      border-radius: var(--radius-sm);
      transition: var(--transition);
    }

    .sidebar-brand:hover {
      color: #fff;
      background: rgba(255, 255, 255, 0.06);
    }

    .sidebar-brand i {
      font-size: 24px;
      color: var(--accent);
    }

    .sidebar-nav {
      display: flex;
      flex-direction: column;
      gap: 4px;
    }

    .nav-label {
      font-size: 11px;
      text-transform: uppercase;
      letter-spacing: 2px;
      color: rgba(255, 255, 255, 0.4);
      padding: 0 12px;
      margin-bottom: 10px;
      font-weight: 600;
    }

    .nav-link {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 12px 14px;
      border-radius: var(--radius-sm);
      color: rgba(255, 255, 255, 0.72);
      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, 0.08);
      transform: translateX(2px);
    }

    .nav-link.active {
      color: #fff;
      background: rgba(6, 182, 212, 0.18);
      border-color: rgba(6, 182, 212, 0.35);
      box-shadow: 0 0 20px rgba(6, 182, 212, 0.12);
    }

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

    /* ============================================================
       主内容布局
       ============================================================ */
    .main-content {
      margin-left: var(--sidebar-width);
      min-height: 100vh;
      display: flex;
      flex-direction: column;
    }

    main {
      flex: 1;
    }

    /* ============================================================
       Hero 区域
       ============================================================ */
    .page-hero {
      position: relative;
      padding: 110px 0 90px;
      background-size: cover;
      background-position: center;
      overflow: hidden;
    }

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

    .page-hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(11, 21, 34, 0.94) 0%, rgba(13, 35, 58, 0.85) 55%, rgba(6, 182, 212, 0.35) 100%);
      z-index: 1;
    }

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

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(6, 182, 212, 0.18);
      border: 1px solid rgba(6, 182, 212, 0.4);
      color: #7ee7ff;
      font-size: 13px;
      font-weight: 600;
      letter-spacing: 0.6px;
      padding: 8px 18px;
      border-radius: 100px;
      margin-bottom: 22px;
      backdrop-filter: blur(4px);
    }

    .page-hero h1 {
      color: #fff;
      font-size: 42px;
      font-weight: 800;
      line-height: 1.3;
      margin-bottom: 18px;
      max-width: 640px;
    }

    .page-hero .hero-subtitle {
      color: rgba(255, 255, 255, 0.85);
      font-size: 17px;
      line-height: 1.8;
      max-width: 580px;
      margin-bottom: 32px;
    }

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

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

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

    .section-head {
      text-align: center;
      max-width: 640px;
      margin: 0 auto 52px;
    }

    .section-tag {
      display: inline-block;
      background: var(--accent-soft);
      color: var(--accent-hover);
      font-size: 13px;
      font-weight: 600;
      letter-spacing: 0.5px;
      padding: 6px 16px;
      border-radius: 100px;
      margin-bottom: 14px;
      border: 1px solid rgba(6, 182, 212, 0.2);
    }

    .section-head h2,
    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--text);
      line-height: 1.3;
      margin-bottom: 12px;
    }

    .section-head p {
      color: var(--text-light);
      font-size: 15px;
      line-height: 1.7;
    }

    /* ============================================================
       平台概况
       ============================================================ */
    .about-section {
      padding: 90px 0;
    }

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

    .about-image-wrap::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(to top, rgba(11, 21, 34, 0.2), transparent 50%);
    }

    .about-image-wrap img {
      width: 100%;
      object-fit: cover;
      transition: transform 0.6s ease;
    }

    .about-image-wrap:hover img {
      transform: scale(1.03);
    }

    .about-content {
      padding-left: 24px;
    }

    .about-content h2 {
      font-size: 30px;
      font-weight: 800;
      margin-bottom: 16px;
      line-height: 1.35;
    }

    .about-content p {
      color: var(--text-light);
      font-size: 15px;
      line-height: 1.8;
      margin-bottom: 14px;
    }

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

    .point-item {
      display: flex;
      align-items: center;
      gap: 10px;
      background: var(--card-bg);
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      padding: 14px 16px;
      font-size: 14px;
      font-weight: 600;
      color: var(--text);
      box-shadow: 0 2px 6px rgba(0, 0, 0, 0.03);
      transition: var(--transition);
    }

    .point-item:hover {
      border-color: var(--accent);
      box-shadow: var(--shadow-hover);
      transform: translateY(-2px);
    }

    .point-item i {
      color: var(--accent);
      font-size: 16px;
    }

    /* ============================================================
       快速入门步骤
       ============================================================ */
    .quick-section {
      background: var(--primary);
      position: relative;
      overflow: hidden;
    }

    .quick-section::before {
      content: "";
      position: absolute;
      top: -120px;
      right: -80px;
      width: 360px;
      height: 360px;
      background: radial-gradient(circle, rgba(6, 182, 212, 0.15), transparent 70%);
      pointer-events: none;
    }

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

    .quick-section .section-head p {
      color: rgba(255, 255, 255, 0.7);
    }

    .quick-section .section-tag {
      background: rgba(6, 182, 212, 0.2);
      border-color: rgba(6, 182, 212, 0.3);
      color: #7ee7ff;
    }

    .step-card {
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius);
      padding: 32px 26px;
      height: 100%;
      transition: var(--transition);
      position: relative;
      backdrop-filter: blur(4px);
    }

    .step-card:hover {
      background: rgba(255, 255, 255, 0.1);
      border-color: rgba(6, 182, 212, 0.4);
      transform: translateY(-6px);
      box-shadow: 0 16px 40px rgba(0, 0, 0, 0.25);
    }

    .step-num {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 52px;
      height: 52px;
      border-radius: 14px;
      background: linear-gradient(135deg, var(--accent), #0e7490);
      color: #fff;
      font-size: 18px;
      font-weight: 800;
      margin-bottom: 20px;
      box-shadow: 0 6px 18px rgba(6, 182, 212, 0.3);
    }

    .step-card h3 {
      color: #fff;
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 10px;
    }

    .step-card p {
      color: rgba(255, 255, 255, 0.68);
      font-size: 14px;
      line-height: 1.7;
      margin: 0;
    }

    .step-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: #7ee7ff;
      font-size: 13px;
      font-weight: 600;
      margin-top: 16px;
      transition: var(--transition);
    }

    .step-link:hover {
      color: #fff;
      gap: 10px;
    }

    /* ============================================================
       核心功能卡片
       ============================================================ */
    .features-section {
      background: var(--bg);
    }

    .feature-card {
      background: var(--card-bg);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 30px 26px;
      height: 100%;
      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), transparent);
      opacity: 0;
      transition: opacity 0.3s;
    }

    .feature-card:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-5px);
      border-color: rgba(6, 182, 212, 0.35);
    }

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

    .feature-icon {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 54px;
      height: 54px;
      border-radius: 14px;
      background: var(--accent-soft);
      color: var(--accent-hover);
      font-size: 20px;
      margin-bottom: 18px;
      transition: var(--transition);
    }

    .feature-card:hover .feature-icon {
      background: var(--accent);
      color: #fff;
      transform: rotate(-6deg) scale(1.05);
    }

    .feature-card h3 {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 10px;
    }

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

    /* ============================================================
       账户安全区块
       ============================================================ */
    .security-section {
      background: linear-gradient(180deg, var(--bg) 0%, #eaf1fa 100%);
    }

    .security-content {
      padding-right: 24px;
    }

    .security-content h2 {
      font-size: 30px;
      font-weight: 800;
      line-height: 1.35;
      margin-bottom: 16px;
    }

    .security-content p {
      color: var(--text-light);
      font-size: 15px;
      line-height: 1.8;
      margin-bottom: 24px;
    }

    .security-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }

    .security-item {
      background: var(--card-bg);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 22px;
      transition: var(--transition);
    }

    .security-item:hover {
      box-shadow: var(--shadow-hover);
      border-color: rgba(6, 182, 212, 0.3);
      transform: translateY(-3px);
    }

    .security-item .sec-icon {
      width: 40px;
      height: 40px;
      border-radius: 10px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: var(--accent-soft);
      color: var(--accent-hover);
      font-size: 16px;
      margin-bottom: 12px;
    }

    .security-item h4 {
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 6px;
    }

    .security-item p {
      color: var(--text-light);
      font-size: 13px;
      line-height: 1.6;
      margin: 0;
    }

    .security-banner {
      margin-top: 30px;
      background: linear-gradient(135deg, var(--primary), var(--primary-light));
      border-radius: var(--radius);
      padding: 24px 28px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      flex-wrap: wrap;
    }

    .security-banner-text {
      color: #fff;
    }

    .security-banner-text strong {
      display: block;
      font-size: 16px;
      margin-bottom: 4px;
    }

    .security-banner-text span {
      color: rgba(255, 255, 255, 0.7);
      font-size: 13px;
    }

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

    .faq-wrap {
      max-width: 820px;
      margin: 0 auto;
    }

    .accordion {
      --bs-accordion-border-radius: var(--radius);
      --bs-accordion-inner-border-radius: var(--radius);
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .accordion-item {
      border: 1px solid var(--border) !important;
      border-radius: var(--radius) !important;
      overflow: hidden;
      background: var(--card-bg);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
      transition: var(--transition);
    }

    .accordion-item:hover {
      border-color: rgba(6, 182, 212, 0.25) !important;
      box-shadow: var(--shadow);
    }

    .accordion-button {
      padding: 20px 24px;
      font-size: 15px;
      font-weight: 700;
      color: var(--text);
      background: var(--card-bg);
      box-shadow: none !important;
      border-radius: var(--radius) !important;
      transition: var(--transition);
    }

    .accordion-button::after {
      background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%2306b6d4' class='bi bi-plus-lg' viewBox='0 0 16 16'%3E%3Cpath fill-rule='evenodd' d='M8 2a.5.5 0 0 1 .5.5v5h5a.5.5 0 0 1 0 1h-5v5a.5.5 0 0 1-1 0v-5h-5a.5.5 0 0 1 0-1h5v-5A.5.5 0 0 1 8 2'/%3E%3C/svg%3E");
      transition: var(--transition);
    }

    .accordion-button:not(.collapsed)::after {
      background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%2306b6d4' class='bi bi-dash-lg' viewBox='0 0 16 16'%3E%3Cpath fill-rule='evenodd' d='M2 8a.5.5 0 0 1 .5-.5h11a.5.5 0 0 1 0 1h-11A.5.5 0 0 1 2 8'/%3E%3C/svg%3E");
    }

    .accordion-button:not(.collapsed) {
      background: var(--accent-soft);
      color: var(--accent-hover);
    }

    .accordion-button:focus {
      box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.15) !important;
    }

    .accordion-body {
      padding: 8px 24px 22px;
      color: var(--text-light);
      font-size: 14px;
      line-height: 1.8;
      background: var(--card-bg);
    }

    /* ============================================================
       CTA 区域
       ============================================================ */
    .cta-section {
      position: relative;
      padding: 90px 0;
      background-size: cover;
      background-position: center;
      overflow: hidden;
      text-align: center;
    }

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

    .cta-section::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(11, 21, 34, 0.94) 0%, rgba(13, 35, 58, 0.88) 60%, rgba(6, 182, 212, 0.3) 100%);
      z-index: 1;
    }

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

    .cta-section h2 {
      color: #fff;
      font-size: 34px;
      font-weight: 800;
      margin-bottom: 14px;
    }

    .cta-section p {
      color: rgba(255, 255, 255, 0.75);
      font-size: 16px;
      max-width: 560px;
      margin: 0 auto 32px;
    }

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

    /* ============================================================
       按钮
       ============================================================ */
    .btn {
      border-radius: 100px;
      padding: 12px 28px;
      font-weight: 600;
      font-size: 15px;
      transition: var(--transition);
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--accent), #0891b2);
      border: none;
      color: #fff;
      box-shadow: 0 6px 20px rgba(6, 182, 212, 0.3);
    }

    .btn-primary:hover,
    .btn-primary:active,
    .btn-primary:focus {
      background: linear-gradient(135deg, #0891b2, #0e7490);
      color: #fff;
      transform: translateY(-2px);
      box-shadow: 0 10px 28px rgba(6, 182, 212, 0.4);
    }

    .btn-outline-light {
      border: 2px solid rgba(255, 255, 255, 0.7);
      color: #fff;
      background: transparent;
    }

    .btn-outline-light:hover {
      background: rgba(255, 255, 255, 0.15);
      border-color: #fff;
      color: #fff;
      transform: translateY(-2px);
    }

    .btn-lg {
      padding: 15px 36px;
      font-size: 16px;
    }

    /* ============================================================
       页脚
       ============================================================ */
    .site-footer {
      background: var(--primary);
      color: rgba(255, 255, 255, 0.7);
      padding: 64px 0 28px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 48px;
      margin-bottom: 40px;
    }

    .footer-brand .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-size: 20px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 16px;
    }

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

    .footer-brand p {
      color: rgba(255, 255, 255, 0.6);
      font-size: 14px;
      line-height: 1.8;
      max-width: 420px;
      margin: 0;
    }

    .footer-links h4 {
      color: #fff;
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 16px;
    }

    .footer-links {
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .footer-links a {
      color: rgba(255, 255, 255, 0.6);
      font-size: 14px;
      transition: var(--transition);
    }

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

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding-top: 24px;
      text-align: center;
    }

    .footer-bottom p {
      color: rgba(255, 255, 255, 0.4);
      font-size: 13px;
      margin: 0;
    }

    /* ============================================================
       响应式断点
       ============================================================ */
    @media (max-width: 1199.98px) {
      .section {
        padding: 68px 0;
      }

      .page-hero {
        padding: 90px 0 70px;
      }

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

    @media (max-width: 991.98px) {
      .app-sidebar {
        position: sticky;
        top: 0;
        width: 100%;
        height: auto;
        border-right: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        padding: 0;
      }

      .sidebar-inner {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
        padding: 14px 20px;
        gap: 16px;
      }

      .sidebar-brand {
        margin-bottom: 0;
        padding: 4px 8px;
        font-size: 17px;
        flex-shrink: 0;
      }

      .sidebar-brand i {
        font-size: 20px;
      }

      .sidebar-nav {
        flex-direction: row;
        gap: 2px;
        overflow-x: auto;
        flex: 1;
        margin-left: 12px;
        padding-bottom: 4px;
        scrollbar-width: none;
      }

      .sidebar-nav::-webkit-scrollbar {
        display: none;
      }

      .nav-label {
        display: none;
      }

      .nav-link {
        padding: 9px 14px;
        font-size: 14px;
        white-space: nowrap;
        border-radius: 100px;
        margin: 0;
      }

      .nav-link:hover {
        transform: none;
      }

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

      .section {
        padding: 56px 0;
      }

      .about-content {
        padding-left: 0;
        margin-top: 28px;
      }

      .security-content {
        padding-right: 0;
        margin-bottom: 32px;
      }

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

    @media (max-width: 767.98px) {
      .page-hero {
        padding: 68px 0 52px;
      }

      .page-hero h1 {
        font-size: 30px;
      }

      .page-hero .hero-subtitle {
        font-size: 15px;
      }

      .section-head h2,
      .section-title {
        font-size: 26px;
      }

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

      .about-points {
        grid-template-columns: 1fr;
      }

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

      .sidebar-inner {
        flex-wrap: wrap;
        gap: 10px;
      }

      .sidebar-brand {
        width: 100%;
      }

      .sidebar-nav {
        margin-left: 0;
        width: 100%;
      }

      .cta-section h2 {
        font-size: 26px;
      }
    }

    @media (max-width: 575.98px) {
      .container {
        padding-left: 18px;
        padding-right: 18px;
      }

      .page-hero h1 {
        font-size: 26px;
      }

      .section {
        padding: 44px 0;
      }

      .section-head {
        margin-bottom: 36px;
      }

      .step-card {
        padding: 24px 20px;
      }

      .feature-card {
        padding: 24px 20px;
      }

      .security-banner {
        flex-direction: column;
        align-items: flex-start;
      }

      .footer-bottom p {
        font-size: 12px;
        line-height: 1.6;
      }
    }