/* roulang page: index */
/* ========== 设计变量 ========== */
:root {
  --primary: #0f172a;
  --primary-dark: #0b1120;
  --primary-light: #1e293b;
  --accent: #f59e0b;
  --accent-dark: #d97706;
  --accent-light: #fef3c7;
  --sky: #0ea5e9;
  --green: #10b981;
  --bg-body: #f0f4f8;
  --bg-white: #ffffff;
  --bg-dark: #0f172a;
  --text-main: #1e293b;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04), 0 2px 8px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 4px 20px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 12px 40px rgba(15, 23, 42, 0.14);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --container-width: 1200px;
  --font-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
}

/* ========== 基础 Reset ========== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-main);
  background: var(--bg-body);
  -webkit-font-smoothing: antialiased;
}
a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}
ul, ol {
  list-style: none;
}
h1, h2, h3, h4, h5, h6 {
  line-height: 1.3;
  font-weight: 700;
  color: var(--primary);
}

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

/* ========== Header ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15, 23, 42, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.2);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 24px;
}
.logo a {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  letter-spacing: 0.5px;
  white-space: nowrap;
}
.logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--accent), #f97316);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 900;
  color: var(--primary);
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.4);
  flex-shrink: 0;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}
.main-nav > li {
  position: relative;
}
.main-nav > li > a {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  color: rgba(255, 255, 255, 0.82);
  font-weight: 500;
  font-size: 15px;
  transition: var(--transition);
}
.main-nav > li > a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
}
.main-nav > li > a.active {
  color: #fff;
  background: rgba(245, 158, 11, 0.16);
  border: 1px solid rgba(245, 158, 11, 0.3);
}
.main-nav > li > a.active::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 24px;
  height: 3px;
  background: var(--accent);
  border-radius: 3px;
}
.nav-cta {
  margin-left: 12px;
}
.nav-cta a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 22px;
  background: linear-gradient(135deg, var(--accent), #f97316);
  color: var(--primary);
  font-weight: 700;
  border-radius: 999px;
  box-shadow: 0 4px 16px rgba(245, 158, 11, 0.35);
  transition: var(--transition);
  white-space: nowrap;
}
.nav-cta a:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 22px rgba(245, 158, 11, 0.5);
}
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  padding: 10px;
  cursor: pointer;
  transition: var(--transition);
}
.nav-toggle:hover {
  border-color: var(--accent);
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: var(--transition);
}
.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ========== Hero ========== */
.hero {
  position: relative;
  padding: 110px 0 90px;
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.95) 0%, rgba(13, 28, 58, 0.88) 50%, rgba(30, 58, 95, 0.82) 100%),
              url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color: #fff;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  top: -160px;
  right: -120px;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(245, 158, 11, 0.2), transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.hero::after {
  content: "";
  position: absolute;
  bottom: -120px;
  left: -100px;
  width: 360px;
  height: 360px;
  background: radial-gradient(circle, rgba(14, 165, 233, 0.16), transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 780px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  background: rgba(245, 158, 11, 0.15);
  border: 1px solid rgba(245, 158, 11, 0.35);
  border-radius: 999px;
  color: #fde68a;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 28px;
  backdrop-filter: blur(4px);
}
.hero-badge::before {
  content: "";
  width: 8px;
  height: 8px;
  background: #34d399;
  border-radius: 50%;
  display: inline-block;
  animation: pulse-dot 2s infinite;
}
@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.6); }
  50% { box-shadow: 0 0 0 6px rgba(52, 211, 153, 0); }
}
.hero h1 {
  font-size: 48px;
  font-weight: 900;
  line-height: 1.2;
  color: #fff;
  margin-bottom: 20px;
  letter-spacing: 1px;
}
.hero h1 span {
  color: var(--accent);
  position: relative;
}
.hero-sub {
  font-size: 18px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.78);
  margin-bottom: 32px;
  max-width: 640px;
}
.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 36px;
}
.hero-tags .tag {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(4px);
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 48px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 16px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent), #f97316);
  color: var(--primary);
  box-shadow: 0 4px 24px rgba(245, 158, 11, 0.4);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(245, 158, 11, 0.55);
}
.btn-ghost {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.28);
  backdrop-filter: blur(4px);
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.18);
  border-color: rgba(255, 255, 255, 0.5);
  transform: translateY(-2px);
}
.hero-status {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 14px;
  color: rgba(255, 255, 255, 0.75);
}
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #34d399;
  display: inline-block;
  animation: pulse-dot 1.5s infinite;
}

/* ========== Hero 统计条 ========== */
.hero-stats-bar {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  margin-top: -50px;
  position: relative;
  z-index: 5;
  padding: 32px 40px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.stat-item {
  text-align: center;
  padding: 8px 0;
}
.stat-item .stat-num {
  font-size: 36px;
  font-weight: 900;
  color: var(--primary);
  line-height: 1.1;
}
.stat-item .stat-num small {
  font-size: 18px;
  color: var(--accent);
  font-weight: 700;
}
.stat-item .stat-label {
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 8px;
}
.stat-item + .stat-item {
  border-left: 1px solid var(--border);
}

/* ========== 通用 section ========== */
.section {
  padding: 84px 0;
}
.section-alt {
  background: var(--bg-white);
}
.section-head {
  max-width: 700px;
  margin-bottom: 48px;
}
.section-head.center {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
  padding: 6px 14px;
  background: var(--accent-light);
  border-radius: 999px;
  margin-bottom: 14px;
  letter-spacing: 0.5px;
}
.section-head h2 {
  font-size: 32px;
  margin-bottom: 12px;
}
.section-head p {
  color: var(--text-muted);
  font-size: 16px;
  line-height: 1.8;
}

/* ========== 实时动态条 ========== */
.ticker-bar {
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  padding: 12px 0;
  color: rgba(255, 255, 255, 0.9);
  font-size: 14px;
}
.ticker-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
  text-align: center;
}
.ticker-inner span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.ticker-inner .ticker-dot {
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
}

/* ========== 核心特征 ========== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.feature-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(245, 158, 11, 0.3);
}
.feature-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), #f97316);
  opacity: 0;
  transition: var(--transition);
}
.feature-card:hover::before {
  opacity: 1;
}
.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: var(--accent);
  margin-bottom: 20px;
  box-shadow: 0 4px 16px rgba(15, 23, 42, 0.2);
}
.feature-card h3 {
  font-size: 18px;
  margin-bottom: 10px;
}
.feature-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ========== 分类入口 ========== */
.category-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
.category-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.category-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.category-card-img {
  height: 200px;
  overflow: hidden;
  position: relative;
}
.category-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.category-card:hover .category-card-img img {
  transform: scale(1.05);
}
.category-card-img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(15, 23, 42, 0.35), transparent 60%);
}
.category-card-body {
  padding: 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.category-card-body h3 {
  font-size: 20px;
  margin-bottom: 10px;
}
.category-card-body p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
  flex: 1;
}
.category-card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  font-weight: 700;
  font-size: 14px;
  color: var(--accent);
}
.category-card-link:hover {
  gap: 12px;
  color: var(--accent-dark);
}

/* ========== 最新资讯 ========== */
.latest-section {
  background: var(--bg-dark);
  position: relative;
  overflow: hidden;
}
.latest-section::before {
  content: "";
  position: absolute;
  top: -100px;
  right: -80px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(245, 158, 11, 0.12), transparent 70%);
  border-radius: 50%;
}
.latest-section .section-head h2 {
  color: #fff;
}
.latest-section .section-head p {
  color: rgba(255, 255, 255, 0.6);
}
.news-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  position: relative;
  z-index: 2;
}
.news-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.news-card:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(245, 158, 11, 0.4);
  transform: translateY(-3px);
}
.news-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}
.news-cat {
  display: inline-block;
  padding: 4px 14px;
  background: rgba(245, 158, 11, 0.15);
  color: #fde68a;
  border: 1px solid rgba(245, 158, 11, 0.3);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}
.news-date {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}
.news-card h3 {
  font-size: 17px;
  color: #fff;
  margin-bottom: 10px;
  font-weight: 600;
  line-height: 1.5;
}
.news-card p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.55);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.empty-tip {
  grid-column: 1 / -1;
  text-align: center;
  padding: 48px;
  color: rgba(255, 255, 255, 0.6);
  font-size: 16px;
  background: rgba(255, 255, 255, 0.04);
  border-radius: var(--radius-md);
  border: 1px dashed rgba(255, 255, 255, 0.2);
}

/* ========== 内容资源 ========== */
.resources-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.resource-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: var(--transition);
}
.resource-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}
.resource-img {
  height: 140px;
  overflow: hidden;
}
.resource-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.resource-card:hover .resource-img img {
  transform: scale(1.06);
}
.resource-body {
  padding: 24px;
}
.resource-body h3 {
  font-size: 17px;
  margin-bottom: 8px;
}
.resource-body p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 14px;
}
.resource-body a {
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.resource-body a:hover {
  color: var(--accent-dark);
  gap: 10px;
}

/* ========== 流程步骤 ========== */
.steps-section {
  background: var(--bg-white);
}
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  counter-reset: step;
}
.step-item {
  position: relative;
  padding: 32px 28px;
  background: var(--bg-body);
  border-radius: var(--radius-md);
  text-align: center;
  border: 1px solid var(--border);
  transition: var(--transition);
}
.step-item:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(245, 158, 11, 0.3);
}
.step-num {
  counter-increment: step;
}
.step-num::before {
  content: "0" counter(step);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--accent), #f97316);
  border-radius: 50%;
  color: var(--primary);
  font-weight: 900;
  font-size: 18px;
  margin-bottom: 18px;
  box-shadow: 0 4px 16px rgba(245, 158, 11, 0.4);
}
.step-item h3 {
  font-size: 17px;
  margin-bottom: 8px;
}
.step-item p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ========== FAQ ========== */
.faq-list {
  max-width: 820px;
  margin: 0 auto;
}
.faq-item {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover {
  border-color: rgba(245, 158, 11, 0.3);
}
.faq-item summary {
  padding: 22px 28px;
  font-size: 16px;
  font-weight: 600;
  color: var(--primary);
  cursor: pointer;
  list-style: none;
  position: relative;
  padding-right: 60px;
  transition: var(--transition);
  background: var(--bg-white);
}
.faq-item summary::-webkit-details-marker {
  display: none;
}
.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--accent-light);
  color: var(--accent-dark);
  font-size: 20px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.faq-item[open] summary::after {
  content: "−";
  background: var(--accent);
  color: var(--primary);
}
.faq-item summary:hover {
  color: var(--accent-dark);
}
.faq-answer {
  padding: 0 28px 24px;
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.8;
  border-top: 1px solid var(--border);
  padding-top: 16px;
  background: var(--bg-white);
}

/* ========== CTA ========== */
.cta-section {
  position: relative;
  padding: 100px 0;
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.94), rgba(30, 41, 59, 0.88)),
              url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  color: #fff;
  text-align: center;
}
.cta-section h2 {
  font-size: 36px;
  color: #fff;
  margin-bottom: 16px;
}
.cta-section p {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 36px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}
.cta-btn-wrap {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ========== Footer ========== */
.site-footer {
  background: var(--primary-dark);
  color: rgba(255, 255, 255, 0.6);
  padding: 64px 0 0;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}
.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.footer-brand .logo a {
  color: #fff;
  font-size: 22px;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  margin-top: 18px;
  max-width: 320px;
}
.footer-col h4 {
  color: #fff;
  font-size: 15px;
  margin-bottom: 18px;
  font-weight: 700;
}
.footer-col ul li {
  margin-bottom: 12px;
}
.footer-col ul li a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.55);
  transition: var(--transition);
}
.footer-col ul li a:hover {
  color: var(--accent);
  padding-left: 4px;
}
.footer-bottom {
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.35);
  flex-wrap: wrap;
  gap: 12px;
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .resources-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .hero-stats-bar {
    padding: 24px;
  }
  .stat-item .stat-num {
    font-size: 28px;
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 60px 0;
  }
  .hero {
    padding: 80px 0 70px;
  }
  .hero h1 {
    font-size: 32px;
  }
  .hero-sub {
    font-size: 16px;
  }
  .nav-toggle {
    display: flex;
  }
  .main-nav {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--primary);
    flex-direction: column;
    align-items: stretch;
    padding: 16px 24px;
    gap: 4px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: var(--shadow-lg);
    display: none;
    max-height: 90vh;
    overflow-y: auto;
  }
  .main-nav.open {
    display: flex;
  }
  .main-nav > li > a {
    padding: 12px 16px;
    justify-content: flex-start;
  }
  .nav-cta {
    margin-left: 0;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
  }
  .main-nav.open .nav-cta {
    display: block;
  }
  .nav-cta a {
    width: 100%;
    justify-content: center;
  }
  .hero-stats-bar {
    margin-top: -30px;
    padding: 20px;
    grid-template-columns: repeat(2, 1fr);
  }
  .stat-item:nth-child(3) {
    border-left: none;
    border-top: 1px solid var(--border);
    padding-top: 20px;
  }
  .stat-item:nth-child(4) {
    border-top: 1px solid var(--border);
    padding-top: 20px;
  }
  .news-grid {
    grid-template-columns: 1fr;
  }
  .category-grid {
    grid-template-columns: 1fr;
  }
  .steps-grid {
    grid-template-columns: 1fr;
  }
  .resources-grid {
    grid-template-columns: 1fr;
  }
  .footer-top {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  .section-head h2 {
    font-size: 26px;
  }
  .cta-section h2 {
    font-size: 28px;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }
  .hero h1 {
    font-size: 26px;
  }
  .hero-sub {
    font-size: 15px;
  }
  .hero-actions {
    flex-direction: column;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .hero-stats-bar {
    padding: 16px;
    gap: 12px;
  }
  .stat-item .stat-num {
    font-size: 22px;
  }
  .stat-item .stat-label {
    font-size: 12px;
  }
  .section-head h2 {
    font-size: 23px;
  }
  .btn {
    padding: 12px 24px;
    font-size: 15px;
  }
  .faq-item summary {
    padding: 18px 50px 18px 20px;
    font-size: 15px;
  }
  .faq-answer {
    padding: 0 20px 20px;
    font-size: 14px;
  }
  .footer-top {
    gap: 28px;
  }
}

/* roulang page: category1 */
:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #dbeafe;
  --accent: #f59e0b;
  --accent-dark: #d97706;
  --bg: #f8fafc;
  --bg-white: #ffffff;
  --bg-deep: #0f172a;
  --text: #0f172a;
  --text-light: #64748b;
  --border: #e2e8f0;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 4px 24px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 16px 48px rgba(37, 99, 235, 0.12);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --container: 1200px;
  --space: 96px;
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img {
  display: block;
  max-width: 100%;
  height: auto;
}
a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition);
}
ul {
  list-style: none;
}
button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
a:focus-visible, button:focus-visible {
  outline: 3px solid rgba(37, 99, 235, 0.5);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ===== Header & Navigation ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.logo a {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.5px;
}
.logo-icon {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  font-size: 19px;
  font-weight: 900;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}
.main-nav > li > a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 16px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-light);
  transition: all var(--transition);
}
.main-nav > li > a:hover {
  color: var(--primary);
  background: var(--primary-light);
}
.main-nav > li > a.active {
  color: var(--primary);
  background: var(--primary-light);
  font-weight: 700;
}
.main-nav .nav-cta a {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  font-weight: 600;
  padding: 10px 22px;
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.3);
}
.main-nav .nav-cta a:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.4);
  color: #fff;
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
}
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  padding: 10px;
  border-radius: 8px;
  z-index: 1100;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 4px;
  transition: all 0.3s ease;
}
.nav-toggle.active span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}
.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.active span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* ===== Page Banner ===== */
.page-banner {
  position: relative;
  background: linear-gradient(rgba(15, 23, 42, 0.85), rgba(15, 23, 42, 0.7)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  padding: 80px 0 64px;
  color: #fff;
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  margin-bottom: 20px;
  color: rgba(255, 255, 255, 0.8);
  flex-wrap: wrap;
}
.breadcrumb a {
  color: rgba(255, 255, 255, 0.85);
}
.breadcrumb a:hover {
  color: var(--accent);
}
.breadcrumb .sep {
  opacity: 0.5;
}
.banner-content {
  max-width: 720px;
}
.banner-content h1 {
  font-size: 42px;
  line-height: 1.3;
  font-weight: 900;
  margin-bottom: 12px;
  letter-spacing: -1px;
}
.banner-content h1 span {
  color: var(--accent);
}
.banner-content p {
  font-size: 17px;
  opacity: 0.9;
  margin-bottom: 28px;
}
.banner-tools {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  transition: all var(--transition);
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  box-shadow: 0 4px 20px rgba(37, 99, 235, 0.4);
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 32px rgba(37, 99, 235, 0.5);
  color: #fff;
}
.btn-light {
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: #fff;
  backdrop-filter: blur(8px);
}
.btn-light:hover {
  background: rgba(255, 255, 255, 0.25);
  border-color: rgba(255, 255, 255, 0.5);
  color: #fff;
  transform: translateY(-3px);
}
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.25);
  padding: 8px 18px;
  border-radius: 40px;
  font-size: 14px;
  margin-bottom: 20px;
}
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #22c55e;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.5); }
  50% { opacity: 0.8; box-shadow: 0 0 0 8px rgba(34, 197, 94, 0); }
}

/* ===== Section Common ===== */
.section {
  padding: var(--space) 0;
}
.section-alt {
  background: var(--bg-white);
}
.section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 56px;
}
.section-head .tag {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  padding: 6px 18px;
  border-radius: 30px;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 16px;
}
.section-head h2 {
  font-size: 34px;
  font-weight: 900;
  letter-spacing: -0.5px;
  line-height: 1.3;
  margin-bottom: 12px;
}
.section-head p {
  color: var(--text-light);
  font-size: 16px;
}

/* ===== Entry Category Cards ===== */
.entry-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.entry-card {
  background: var(--bg-white);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 32px 28px;
  position: relative;
  transition: all var(--transition);
  overflow: hidden;
}
.entry-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}
.entry-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.entry-card:hover::before {
  transform: scaleX(1);
}
.entry-icon {
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  border-radius: 14px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 22px;
  margin-bottom: 20px;
}
.entry-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
}
.entry-card p {
  color: var(--text-light);
  font-size: 15px;
  line-height: 1.7;
  margin-bottom: 18px;
}
.entry-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: #16a34a;
  background: #dcfce7;
  padding: 4px 12px;
  border-radius: 20px;
}
.status-badge.soon {
  color: var(--accent-dark);
  background: #fef3c7;
}
.entry-link {
  font-weight: 600;
  color: var(--primary);
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.entry-link:hover {
  gap: 10px;
}

/* ===== Quick Access Cards ===== */
.access-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
.access-card {
  background: var(--bg-white);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  transition: all var(--transition);
}
.access-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.access-img {
  position: relative;
  overflow: hidden;
  height: 220px;
}
.access-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.access-card:hover .access-img img {
  transform: scale(1.05);
}
.access-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(15, 23, 42, 0.4), transparent 60%);
}
.access-body {
  padding: 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.access-body .card-tag {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 6px;
  align-self: flex-start;
  margin-bottom: 14px;
}
.access-body h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 8px;
}
.access-body p {
  color: var(--text-light);
  font-size: 15px;
  line-height: 1.7;
  margin-bottom: 20px;
  flex: 1;
}
.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}
.card-footer .go-link {
  color: var(--primary);
  font-weight: 600;
  font-size: 15px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.card-footer .go-link:hover {
  gap: 12px;
}
.user-count {
  font-size: 13px;
  color: var(--text-light);
  display: flex;
  align-items: center;
  gap: 6px;
}
.user-count i {
  color: var(--accent);
}

/* ===== Steps / Process ===== */
.steps-section {
  background: var(--bg-deep);
  color: #fff;
  position: relative;
  background-image: linear-gradient(rgba(15, 23, 42, 0.9), rgba(15, 23, 42, 0.9)), url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
}
.steps-section .section-head h2 {
  color: #fff;
}
.steps-section .section-head p {
  color: rgba(255, 255, 255, 0.7);
}
.steps-section .section-head .tag {
  background: rgba(255, 255, 255, 0.15);
  color: var(--accent);
}
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}
.step-item {
  text-align: center;
  padding: 32px 20px;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all var(--transition);
  position: relative;
}
.step-item:hover {
  background: rgba(255, 255, 255, 0.12);
  transform: translateY(-4px);
  border-color: rgba(255, 255, 255, 0.2);
}
.step-num {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  font-size: 18px;
  font-weight: 800;
  margin: 0 auto 18px;
  color: #fff;
}
.step-item h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}
.step-item p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.6;
}
.tip-box {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: rgba(245, 158, 11, 0.15);
  border: 1px solid rgba(245, 158, 11, 0.3);
  border-radius: 12px;
  padding: 16px 20px;
  margin-top: 40px;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
  color: #fcd34d;
  font-size: 14px;
}
.tip-box i {
  margin-top: 3px;
  font-size: 18px;
}
.tip-box strong {
  color: #fff;
}

/* ===== Stats ===== */
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.stat-box {
  background: var(--bg-white);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 32px 24px;
  text-align: center;
  transition: all var(--transition);
}
.stat-box:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.stat-box .num {
  font-size: 38px;
  font-weight: 900;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.2;
}
.stat-box .label {
  color: var(--text-light);
  font-size: 14px;
  margin-top: 8px;
  font-weight: 500;
}

/* ===== FAQ ===== */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}
.faq-item {
  background: var(--bg-white);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  margin-bottom: 12px;
  overflow: hidden;
  transition: all var(--transition);
}
.faq-item:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow);
}
.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  gap: 16px;
}
.faq-q i {
  color: var(--primary);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}
.faq-item.open .faq-q i {
  transform: rotate(180deg);
}
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}
.faq-item.open .faq-a {
  max-height: 260px;
}
.faq-a p {
  padding: 0 24px 20px;
  color: var(--text-light);
  font-size: 15px;
  line-height: 1.7;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

/* ===== CTA ===== */
.cta-section {
  background: linear-gradient(135deg, var(--primary), #4338ca);
  padding: 64px 0;
  position: relative;
  overflow: hidden;
  color: #fff;
}
.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  opacity: 0.12;
  mix-blend-mode: overlay;
}
.cta-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
}
.cta-content h2 {
  font-size: 32px;
  font-weight: 900;
  margin-bottom: 10px;
}
.cta-content p {
  opacity: 0.9;
  font-size: 16px;
  max-width: 480px;
}
.cta-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.btn-accent {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 20px rgba(245, 158, 11, 0.4);
}
.btn-accent:hover {
  background: var(--accent-dark);
  transform: translateY(-3px);
  box-shadow: 0 10px 28px rgba(245, 158, 11, 0.5);
  color: #fff;
}
.btn-outline-light {
  border: 2px solid rgba(255, 255, 255, 0.5);
  color: #fff;
  background: transparent;
}
.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: #fff;
  color: #fff;
  transform: translateY(-3px);
}

/* ===== Footer ===== */
.site-footer {
  background: var(--bg-deep);
  color: rgba(255, 255, 255, 0.8);
  padding-top: 72px;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.footer-brand .logo a {
  color: #fff;
}
.footer-brand p {
  margin-top: 16px;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.6);
  max-width: 360px;
}
.footer-col h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}
.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 32px;
  height: 3px;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
}
.footer-col ul li {
  margin-bottom: 12px;
}
.footer-col ul li a {
  color: rgba(255, 255, 255, 0.65);
  font-size: 14px;
  transition: all var(--transition);
}
.footer-col ul li a:hover {
  color: var(--accent);
  padding-left: 6px;
}
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.45);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  :root {
    --space: 72px;
  }
  .entry-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 768px) {
  :root {
    --space: 56px;
  }
  .nav-toggle {
    display: flex;
  }
  .main-nav {
    position: fixed;
    top: 72px;
    right: -100%;
    width: min(320px, 80vw);
    height: calc(100vh - 72px);
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 32px 24px;
    box-shadow: -16px 0 40px rgba(15, 23, 42, 0.12);
    transition: right 0.4s ease;
    z-index: 1050;
    overflow-y: auto;
    border-left: 1px solid var(--border);
  }
  .main-nav.open {
    right: 0;
  }
  .main-nav > li > a {
    display: flex;
    justify-content: space-between;
    padding: 14px 16px;
    font-size: 16px;
  }
  .main-nav .nav-cta a {
    justify-content: center;
    margin-top: 12px;
  }
  .banner-content h1 {
    font-size: 34px;
  }
  .page-banner {
    padding: 56px 0 48px;
  }
  .section-head h2 {
    font-size: 28px;
  }
  .stats-row {
    grid-template-columns: repeat(2, 1fr);
  }
  .access-grid {
    grid-template-columns: 1fr;
  }
  .entry-grid {
    grid-template-columns: 1fr;
  }
  .steps-grid {
    grid-template-columns: 1fr;
    max-width: 420px;
    margin: 0 auto;
  }
  .cta-inner {
    flex-direction: column;
    text-align: center;
  }
  .cta-actions {
    justify-content: center;
  }
  .footer-top {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}
@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }
  .banner-content h1 {
    font-size: 28px;
  }
  .banner-content p {
    font-size: 15px;
  }
  .section-head h2 {
    font-size: 24px;
  }
  .stats-row {
    grid-template-columns: 1fr;
  }
  .btn {
    padding: 12px 20px;
    font-size: 14px;
    width: 100%;
  }
  .banner-tools {
    flex-direction: column;
  }
  .status-pill {
    font-size: 13px;
  }
  .faq-q {
    padding: 16px 18px;
    font-size: 15px;
  }
  .faq-a p {
    padding: 0 18px 16px;
  }
  .entry-card {
    padding: 24px 20px;
  }
  .access-body {
    padding: 22px 18px;
  }
  .footer-bottom {
    font-size: 12px;
  }
}

/* roulang page: article */
:root {
  --primary:#0f1f4d;
  --primary-light:#1d3268;
  --accent:#f0a500;
  --accent-2:#ff5e2b;
  --danger:#e63946;
  --bg:#f4f6fb;
  --bg-dark:#0a1428;
  --card:#ffffff;
  --text:#1b1f3b;
  --text-weak:#6b7280;
  --border:#e2e6f0;
  --radius:14px;
  --radius-lg:24px;
  --shadow:0 6px 24px rgba(15,31,77,.08);
  --shadow-lg:0 18px 48px rgba(15,31,77,.14);
  --spacing-xs:8px;
  --spacing-sm:16px;
  --spacing-md:28px;
  --spacing-lg:48px;
  --spacing-xl:80px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:system-ui,-apple-system,'PingFang SC','Helvetica Neue','Hiragino Sans GB','Microsoft YaHei',sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.75;
  font-size:15px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
ul,ol{list-style:none}
h1,h2,h3,h4{line-height:1.3;font-weight:800}
.container{max-width:1200px;margin:0 auto;padding:0 24px}

/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(255,255,255,.95);
  backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(226,230,240,.8);
  box-shadow:0 2px 14px rgba(15,31,77,.04);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:20px}
.logo a{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:800;color:var(--primary)}
.logo-icon{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:10px;
  background:linear-gradient(135deg,var(--primary),var(--primary-light));
  color:#fff;font-weight:900;font-size:19px;
  box-shadow:0 4px 14px rgba(15,31,77,.25);
}
.main-nav{display:flex;align-items:center;gap:6px;list-style:none}
.main-nav li a{
  display:block;padding:9px 18px;border-radius:999px;
  font-weight:600;color:#3a3f55;font-size:14px;
  transition:background .25s,color .25s,transform .2s;
}
.main-nav li a:hover{background:rgba(15,31,77,.07);color:var(--primary)}
.main-nav li a.active{background:var(--primary);color:#fff;box-shadow:0 6px 18px rgba(15,31,77,.22)}
.main-nav .nav-cta a{
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  color:#fff;padding:10px 22px;font-weight:700;
  box-shadow:0 6px 20px rgba(255,94,43,.32);
}
.main-nav .nav-cta a:hover{transform:translateY(-2px);box-shadow:0 10px 28px rgba(255,94,43,.4)}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:42px;height:42px;border:1px solid var(--border);border-radius:10px;
  background:#fff;align-items:center;
}
.nav-toggle span{width:20px;height:2px;background:var(--primary);border-radius:2px;transition:.3s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 30px;border-radius:999px;font-weight:700;font-size:15px;
  transition:transform .25s,box-shadow .25s,background .25s;
}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;box-shadow:0 8px 24px rgba(15,31,77,.25)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(15,31,77,.32)}
.btn-gold{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;box-shadow:0 8px 24px rgba(255,94,43,.3)}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 14px 38px rgba(255,94,43,.4)}
.btn-ghost{background:rgba(255,255,255,.14);color:#fff;border:1.5px solid rgba(255,255,255,.6);backdrop-filter:blur(8px)}
.btn-ghost:hover{background:rgba(255,255,255,.22);transform:translateY(-2px)}

/* ===== Breadcrumb ===== */
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:rgba(255,255,255,.8);margin-bottom:20px}
.breadcrumb a{color:var(--accent);transition:.2s}
.breadcrumb a:hover{color:#fff}
.breadcrumb-sep{font-size:10px;opacity:.7}
.breadcrumb .current{color:rgba(255,255,255,.9)}

/* ===== Article Hero ===== */
.article-hero{
  position:relative;
  background:linear-gradient(118deg,rgba(10,20,40,.92) 0%,rgba(15,31,77,.78) 48%,rgba(240,165,0,.3) 100%),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color:#fff;
  padding:76px 0 66px;
}
.article-hero-inner{max-width:960px;margin:0 auto}
.article-hero-badge{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px}
.hero-badge-item{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);
  border-radius:999px;padding:6px 14px;font-size:12.5px;font-weight:600;
  backdrop-filter:blur(8px);
}
.hero-badge-item.hot{background:rgba(255,94,43,.22);border-color:rgba(255,120,60,.45);color:#ffd9a8}
.article-hero-title{font-size:36px;font-weight:900;line-height:1.28;margin-bottom:16px;letter-spacing:.5px}
.article-hero-desc{font-size:15px;color:rgba(255,255,255,.85);max-width:760px;margin-bottom:26px;line-height:1.8}
.article-hero-meta{display:flex;flex-wrap:wrap;gap:8px 24px;border-top:1px solid rgba(255,255,255,.18);padding-top:18px;font-size:13.5px;color:rgba(255,255,255,.8)}
.meta-item{display:inline-flex;align-items:center;gap:6px}
.meta-item i{color:var(--accent)}

/* ===== Live Ticker ===== */
.live-ticker-section{margin-top:-28px;padding:0 0 40px;position:relative;z-index:5}
.live-ticker{
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  background:#fff;border-radius:16px;box-shadow:var(--shadow-lg);
  padding:16px 22px;border:1px solid var(--border);
}
.ticker-left{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.live-badge{
  display:inline-flex;align-items:center;gap:6px;
  background:linear-gradient(135deg,#ff3b5c,#e63946);color:#fff;
  font-size:12px;font-weight:800;padding:6px 14px;border-radius:999px;letter-spacing:.8px;
}
.live-badge.pulse .fa-circle{font-size:6px;animation:blink 1s infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.3}}
.ticker-text{font-weight:700;color:var(--primary);font-size:14px}
.ticker-text i{color:var(--accent-2);margin-right:4px}
.ticker-countdown{display:flex;align-items:center;gap:8px;background:#fff8ec;border:1px solid #ffe0b2;border-radius:999px;padding:7px 18px;font-size:13px;font-weight:600;color:#8a5a00}
.ticker-countdown strong{font-size:17px;color:var(--primary);font-variant-numeric:tabular-nums}
.ticker-cta{
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  color:#fff;font-weight:700;font-size:14px;padding:10px 22px;border-radius:999px;
  transition:.25s;box-shadow:0 6px 18px rgba(255,94,43,.3);
}
.ticker-cta:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(255,94,43,.4)}

/* ===== Content Section ===== */
.content-section{padding:48px 0 64px}
.content-layout{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:36px}
.post-card{
  background:var(--card);border-radius:var(--radius-lg);
  box-shadow:var(--shadow);padding:36px;border:1px solid var(--border);
}
.post-tools{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:24px}
.tool-badge{
  display:inline-flex;align-items:center;gap:6px;
  background:#f0f4ff;border:1px solid #d6e0ff;color:var(--primary);
  border-radius:999px;padding:6px 16px;font-size:12.5px;font-weight:600;
}
.article-content{font-size:16px;line-height:1.9;color:#2d3047}
.article-content h2{font-size:24px;margin:30px 0 16px;font-weight:800;color:var(--primary);position:relative;padding-left:16px}
.article-content h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:5px;border-radius:99px;background:linear-gradient(180deg,var(--accent),var(--accent-2))}
.article-content h3{font-size:20px;margin:24px 0 12px;font-weight:700;color:var(--primary)}
.article-content p{margin-bottom:18px}
.article-content ul,.article-content ol{margin:0 0 22px 26px}
.article-content li{margin-bottom:8px;position:relative}
.article-content ul li::before{content:"\f0da";font-family:"Font Awesome 6 Free";font-weight:900;position:absolute;left:-22px;top:2px;color:var(--accent);font-size:12px}
.article-content img{border-radius:12px;margin:20px 0;box-shadow:var(--shadow)}
.article-content blockquote{
  border-left:4px solid var(--accent);background:#fff8ec;
  padding:16px 22px;border-radius:0 12px 12px 0;margin:20px 0;
  color:#5c4d22;font-size:15px;
}
.article-content a{color:var(--primary);text-decoration:underline}
.post-bottom{
  border-top:1px solid var(--border);margin-top:34px;padding-top:20px;
  display:flex;align-items:center;gap:12px;font-size:14px;color:var(--text-weak);
}
.post-bottom a{
  background:#f0f4ff;border:1px solid #d6e0ff;color:var(--primary);
  padding:5px 14px;border-radius:999px;font-weight:600;transition:.2s;
}
.post-bottom a:hover{background:var(--primary);color:#fff}

/* ==== Sidebar ==== */
.content-side{display:flex;flex-direction:column;gap:24px}
.side-widget{
  background:var(--card);border-radius:18px;box-shadow:var(--shadow);
  border:1px solid var(--border);padding:24px;
}
.side-widget h3{
  font-size:16px;color:var(--primary);margin-bottom:18px;
  display:flex;align-items:center;gap:8px;padding-bottom:12px;border-bottom:1px solid var(--border);
}
.side-widget h3 i{color:var(--accent)}
.side-status ul li{display:flex;align-items:center;gap:8px;font-size:14px;padding:9px 0;border-bottom:1px dashed var(--border)}
.side-status ul li:last-child{border-bottom:none}
.status-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0}
.status-dot.ok{background:#22c55e;box-shadow:0 0 0 4px rgba(34,197,94,.15)}
.status-dot.warn{background:var(--accent);box-shadow:0 0 0 4px rgba(240,165,0,.15)}
.side-links{display:flex;flex-direction:column;gap:10px}
.side-link-btn{
  display:flex;align-items:center;gap:10px;
  background:#f7f9fd;border:1px solid var(--border);border-radius:12px;
  padding:12px 16px;font-weight:600;font-size:14px;color:var(--text);transition:.2s;
}
.side-link-btn i{color:var(--primary);width:18px;text-align:center}
.side-link-btn:hover{background:var(--primary);color:#fff;transform:translateX(4px);box-shadow:0 8px 20px rgba(15,31,77,.18)}
.side-link-btn:hover i{color:var(--accent)}
.side-tip p{font-size:13.5px;color:var(--text-weak);line-height:1.8}
.side-tip h3 i{color:var(--accent-2)}

/* ==== Related Section ==== */
.related-section{padding:64px 0;background:linear-gradient(180deg,#eef1f9,#f7f9fd)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:36px}
.section-head.center{flex-direction:column;align-items:center;text-align:center}
.section-sub{
  display:inline-block;background:linear-gradient(135deg,var(--accent),var(--accent-2));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  font-size:13px;font-weight:800;letter-spacing:2px;margin-bottom:8px;
}
.section-head h2{font-size:30px;font-weight:900;color:var(--primary);margin-bottom:8px}
.section-head p{color:var(--text-weak);font-size:15px;max-width:600px}
.link-more{
  display:inline-flex;align-items:center;gap:6px;font-weight:700;color:var(--primary);
  padding:8px 18px;border:1.5px solid var(--primary);border-radius:999px;font-size:14px;transition:.25s;
}
.link-more:hover{background:var(--primary);color:#fff;transform:translateX(3px)}
.related-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.related-card{
  background:#fff;border-radius:18px;overflow:hidden;border:1px solid var(--border);
  transition:transform .3s,box-shadow .3s;display:flex;flex-direction:column;
}
.related-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg)}
.related-thumb{position:relative;height:148px;overflow:hidden;background:#e8edf6}
.related-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.related-card:hover .related-thumb img{transform:scale(1.06)}
.thumb-tag{
  position:absolute;top:12px;left:12px;
  background:rgba(10,20,40,.78);color:#fff;backdrop-filter:blur(6px);
  font-size:12px;font-weight:600;padding:4px 12px;border-radius:999px;
}
.related-body{padding:20px;display:flex;flex-direction:column;flex:1}
.related-body h3{font-size:15.5px;font-weight:700;line-height:1.55;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;color:var(--text)}
.related-body p{font-size:13px;color:var(--text-weak);line-height:1.7;flex:1;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:12px}
.related-meta{display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--border);padding-top:12px;font-size:12.5px;color:var(--text-weak)}
.meta-arrow{width:28px;height:28px;display:inline-flex;align-items:center;justify-content:center;background:#f0f4ff;color:var(--primary);border-radius:50%;transition:.25s}
.related-card:hover .meta-arrow{background:var(--primary);color:#fff}
.empty-tip{
  grid-column:1/-1;background:#fff;border:1px dashed var(--border);
  border-radius:16px;padding:40px;text-align:center;color:var(--text-weak);font-weight:600;
}

/* ==== Not Found ==== */
.not-found-card{
  background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow);
  border:1px solid var(--border);padding:64px 40px;text-align:center;
}
.not-found-card i{font-size:52px;color:var(--accent);margin-bottom:16px}
.not-found-card h2{font-size:22px;color:var(--primary);margin-bottom:10px}
.not-found-card p{color:var(--text-weak);margin-bottom:24px}

/* ==== FAQ Section ==== */
.faq-section{padding:80px 0;background:var(--bg)}
.faq-list{max-width:840px;margin:0 auto;display:flex;flex-direction:column;gap:16px}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:16px;
  box-shadow:0 2px 10px rgba(15,31,77,.04);overflow:hidden;transition:.25s;
}
.faq-item:hover{border-color:#c8d3ef;box-shadow:var(--shadow)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;cursor:pointer;font-weight:700;font-size:15.5px;color:var(--text);
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary i{color:var(--accent);transition:transform .3s;flex-shrink:0}
.faq-item[open] summary i{transform:rotate(180deg)}
.faq-answer{padding:0 24px 22px;color:var(--text-weak);font-size:14px;line-height:1.85}

/* ==== CTA Section ==== */
.cta-section{
  background:linear-gradient(135deg,#081228 0%,#12204a 55%,#1a305f 100%);
  padding:76px 0;position:relative;overflow:hidden;
}
.cta-section::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  opacity:.15;filter:saturate(1.2);
}
.cta-box{
  position:relative;z-index:2;display:grid;grid-template-columns:1fr auto;gap:48px;align-items:center;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
  border-radius:var(--radius-lg);padding:48px 52px;backdrop-filter:blur(12px);
}
.cta-content h2{font-size:28px;font-weight:900;color:#fff;margin-bottom:12px}
.cta-content p{color:rgba(255,255,255,.78);font-size:15px;margin-bottom:26px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.cta-stats{display:flex;gap:36px}
.stat-item{text-align:center}
.stat-item strong{
  display:block;font-size:30px;font-weight:900;color:var(--accent);
  line-height:1.2;margin-bottom:4px;
}
.stat-item span{font-size:13px;color:rgba(255,255,255,.7)}

/* ==== Footer ==== */
.site-footer{background:#0a1428;color:#9aa6c2;padding:64px 0 0;font-size:14px}
.footer-top{display:grid;grid-template-columns:2fr 1fr 1fr;gap:44px;padding-bottom:44px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand .logo a{color:#fff}
.footer-brand .logo .logo-icon{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:var(--primary)}
.footer-brand p{line-height:1.9;font-size:13.5px;color:#7e8ab0;max-width:420px}
.footer-col h4{font-size:16px;color:#fff;margin-bottom:18px;font-weight:700}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{color:#8a96b8;transition:.25s;display:inline-flex;gap:6px;align-items:center}
.footer-col ul li a::before{content:"\f105";font-family:"Font Awesome 6 Free";font-weight:900;font-size:11px;color:var(--accent)}
.footer-col ul li a:hover{color:#fff;transform:translateX(4px)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:20px 0;display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;
  font-size:13px;color:#6c7899;
}

/* ==== Responsive ==== */
@media (max-width:1024px){
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .content-layout{grid-template-columns:minmax(0,1fr) 290px;gap:24px}
  .cta-box{padding:36px;grid-template-columns:1fr}
  .cta-stats{justify-content:flex-start;gap:28px}
}
@media (max-width:920px){
  .nav-toggle{display:flex}
  .main-nav{
    display:none;position:absolute;top:72px;left:0;right:0;
    background:#fff;flex-direction:column;padding:16px 24px 24px;
    border-bottom:1px solid var(--border);box-shadow:0 18px 40px rgba(15,31,77,.14);
    gap:8px;
  }
  .main-nav.open{display:flex}
  .main-nav li a{text-align:center;padding:13px 16px;border-radius:12px}
  .main-nav .nav-cta a{margin-top:4px}
  .content-layout{grid-template-columns:1fr}
  .content-side{flex-direction:row;flex-wrap:wrap}
  .side-widget{flex:1 1 220px}
}
@media (max-width:768px){
  .article-hero{padding:54px 0 46px}
  .article-hero-title{font-size:27px}
  .article-hero-badge .hero-badge-item{font-size:11px;padding:5px 11px}
  .ticker-countdown{width:100%;justify-content:center}
  .live-ticker{justify-content:center}
  .section-head h2{font-size:24px}
  .related-grid{grid-template-columns:1fr}
  .post-card{padding:24px}
  .footer-top{grid-template-columns:1fr;gap:32px}
  .cta-box{padding:28px 24px}
  .cta-stats{flex-wrap:wrap;gap:20px}
  .cta-stats .stat-item strong{font-size:24px}
  .article-content{font-size:15px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .logo a{font-size:19px}
  .logo-icon{width:34px;height:34px;font-size:16px}
  .article-hero-title{font-size:23px}
  .article-hero-desc{font-size:14px}
  .article-hero-meta{font-size:12.5px}
  .breadcrumb{font-size:12px}
  .post-card{padding:18px}
  .post-tools{gap:8px}
  .tool-badge{font-size:11px;padding:5px 12px}
  .cta-actions{flex-direction:column;width:100%}
  .btn{width:100%}
  .footer-bottom{flex-direction:column;text-align:center}
  .related-thumb{height:170px}
}

/* roulang page: category2 */
/* =========================================
   设计变量与基础 Reset
========================================= */
:root {
  --color-primary: #2563eb;
  --color-primary-dark: #1d4ed8;
  --color-primary-light: #3b82f6;
  --color-accent: #f59e0b;
  --color-accent-dark: #d97706;
  --color-dark: #0f172a;
  --color-body: #334155;
  --color-muted: #64748b;
  --color-bg: #f8fafc;
  --color-card: #ffffff;
  --color-border: #e2e8f0;
  --color-success: #10b981;
  --color-danger: #ef4444;
  --color-heading: #0f172a;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --shadow-sm: 0 2px 10px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 6px 24px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 14px 40px rgba(15, 23, 42, 0.12);
  --transition: all 0.3s ease;
  --container: 1200px;
  --section-space: 96px;
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}

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

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

body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-body);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

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

ul, ol {
  list-style: none;
}

button, input, select, textarea {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  outline: none;
}

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

section {
  position: relative;
}

/* =========================================
   通用组件：按钮 / 标签 / 徽章 / 标题
========================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 999px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.2;
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: #fff;
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(37, 99, 235, 0.42);
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
}

.btn-accent {
  background: linear-gradient(135deg, var(--color-accent) 0%, #fbbf24 100%);
  color: #0f172a;
  box-shadow: 0 6px 20px rgba(245, 158, 11, 0.35);
}

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(245, 158, 11, 0.45);
  background: linear-gradient(135deg, var(--color-accent-dark) 0%, var(--color-accent) 100%);
}

.btn-outline-light {
  border-color: rgba(255,255,255,0.6);
  color: #fff;
  background: transparent;
}

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

.btn:focus-visible {
  outline: 3px solid rgba(37, 99, 235, 0.4);
  outline-offset: 2px;
}

.section-tag {
  display: inline-block;
  background: rgba(37, 99, 235, 0.1);
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 700;
  padding: 6px 18px;
  border-radius: 999px;
  letter-spacing: 0.5px;
}

.section-tag.light {
  background: rgba(255,255,255,0.15);
  color: #fff;
}

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

.section-head h2 {
  font-size: 36px;
  font-weight: 800;
  color: var(--color-heading);
  line-height: 1.25;
  margin: 16px 0 14px;
  letter-spacing: -0.5px;
}

.section-head p {
  font-size: 16px;
  color: var(--color-muted);
  line-height: 1.7;
}

/* =========================================
   Header / Navigation
========================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
  box-shadow: 0 1px 8px rgba(15, 23, 42, 0.04);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo a {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  color: var(--color-dark);
  letter-spacing: -0.3px;
}

.logo-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: #fff;
  font-size: 20px;
  font-weight: 800;
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.28);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.main-nav > li {
  position: relative;
}

.main-nav a {
  display: block;
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-body);
  transition: var(--transition);
}

.main-nav a:hover {
  color: var(--color-primary);
  background: rgba(37, 99, 235, 0.08);
}

.main-nav a.active {
  color: var(--color-primary);
  background: rgba(37, 99, 235, 0.12);
  font-weight: 600;
}

.main-nav .nav-cta a {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: #fff;
  font-weight: 600;
  padding: 10px 26px;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
  margin-left: 8px;
}

.main-nav .nav-cta a:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(37, 99, 235, 0.42);
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  color: #fff;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  border-radius: 10px;
  cursor: pointer;
  background: var(--color-bg);
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-dark);
  border-radius: 2px;
  transition: var(--transition);
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* =========================================
   Page Hero / Banner
========================================= */
.page-hero {
  position: relative;
  padding: 120px 0 110px;
  background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  color: #fff;
  text-align: center;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.85) 0%, rgba(37, 99, 235, 0.75) 100%);
  z-index: 1;
}

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

.breadcrumb {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  background: rgba(255,255,255,0.14);
  backdrop-filter: blur(6px);
  padding: 8px 22px;
  border-radius: 999px;
  margin-bottom: 28px;
  color: rgba(255,255,255,0.8);
}

.breadcrumb a:hover {
  color: #fff;
}

.breadcrumb span {
  margin: 0 2px;
  opacity: 0.6;
}

.page-hero h1 {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.2;
  margin: 0 auto 20px;
  max-width: 800px;
  letter-spacing: -0.5px;
}

.page-hero h1 span {
  color: #fbbf24;
}

.page-hero .hero-desc {
  max-width: 680px;
  margin: 0 auto 36px;
  font-size: 18px;
  line-height: 1.8;
  color: rgba(255,255,255,0.85);
}

.hero-status {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(255,255,255,0.15);
  background: rgba(16, 185, 129, 0.2);
  border: 1px solid rgba(16, 185, 129, 0.5);
  border-radius: 999px;
  padding: 10px 26px;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 28px;
  color: #d1fae5;
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-success);
  display: inline-block;
  animation: pulse-dot 1.8s infinite;
  box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.5);
}

@keyframes pulse-dot {
  0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.5); }
  70% { box-shadow: 0 0 0 10px rgba(16, 185, 129, 0); }
  100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

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

/* =========================================
   指南目录区
========================================= */
.guide-directory {
  padding: var(--section-space) 0;
  background: var(--color-bg);
}

.direct-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.direct-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px 26px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.direct-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  opacity: 0;
  transition: var(--transition);
}

.direct-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(37, 99, 235, 0.2);
}

.direct-card:hover::after {
  opacity: 1;
}

.direct-icon {
  font-size: 32px;
  font-weight: 800;
  color: rgba(37, 99, 235, 0.15);
  line-height: 1;
  margin-bottom: 18px;
  letter-spacing: -1px;
}

.direct-card:hover .direct-icon {
  color: var(--color-primary);
}

.direct-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 10px;
}

.direct-card p {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.7;
  flex-grow: 1;
  margin-bottom: 20px;
}

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

.direct-link::after {
  content: '→';
  transition: transform 0.3s ease;
}

.direct-card:hover .direct-link::after {
  transform: translateX(4px);
}

/* =========================================
   上手步骤区
========================================= */
.steps-section {
  padding: var(--section-space) 0;
  background: linear-gradient(160deg, #0f172a 0%, #1e293b 100%);
  color: #fff;
}

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

.steps-section .section-head p {
  color: rgba(255,255,255,0.6);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  margin-bottom: 60px;
}

.step-item {
  position: relative;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  backdrop-filter: blur(6px);
  transition: var(--transition);
}

.step-item:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.2);
  transform: translateY(-4px);
}

.step-num {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 800;
  margin-bottom: 22px;
  box-shadow: 0 6px 16px rgba(37, 99, 235, 0.35);
}

.step-item h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  color: #fff;
}

.step-item p {
  font-size: 14px;
  line-height: 1.75;
  color: rgba(255,255,255,0.65);
}

.step-arrow {
  display: none;
}

/* 数据统计条 */
.stat-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  max-width: 900px;
  margin: 0 auto;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-lg);
  padding: 36px 40px;
  backdrop-filter: blur(8px);
}

.stat-item {
  text-align: center;
}

.stat-item strong {
  display: block;
  font-size: 36px;
  font-weight: 800;
  background: linear-gradient(135deg, #fbbf24, #f59e0b);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}

.stat-item span {
  display: inline-block;
  margin-top: 6px;
  font-size: 14px;
  color: rgba(255,255,255,0.65);
}

/* =========================================
   功能详解区
========================================= */
.feature-section {
  padding: var(--section-space) 0;
  background: var(--color-bg);
}

.feature-list {
  display: grid;
  gap: 40px;
}

.feature-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  background: var(--color-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.feature-card:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(37, 99, 235, 0.15);
}

.feature-card:nth-child(even) .feature-thumb {
  order: 2;
}

.feature-thumb {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  min-height: 260px;
}

.feature-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

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

.feature-thumb .thumb-tag {
  position: absolute;
  top: 18px;
  left: 18px;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(4px);
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 700;
  padding: 6px 16px;
  border-radius: 999px;
  box-shadow: var(--shadow-sm);
}

.feature-body {
  padding: 36px 40px;
}

.feature-body h3 {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 14px;
  line-height: 1.4;
}

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

.feature-points {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.feature-points li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--color-body);
}

.feature-points li::before {
  content: '✓';
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: rgba(16, 185, 129, 0.12);
  color: var(--color-success);
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 2px;
}

/* =========================================
   使用技巧 / 安全提醒
========================================= */
.tips-section {
  padding: var(--section-space) 0;
  background: linear-gradient(160deg, #1e293b 0%, #0f172a 100%);
  color: #fff;
  position: relative;
  overflow: hidden;
}

.tips-section::before {
  content: '';
  position: absolute;
  width: 500px;
  height: 500px;
  right: -150px;
  top: -200px;
  background: rgba(37, 99, 235, 0.2);
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
}

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

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

.tips-section .section-head p {
  color: rgba(255,255,255,0.6);
}

.tips-wrap {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  max-width: 960px;
  margin: 0 auto;
}

.tip-item {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-md);
  padding: 24px 26px;
  transition: var(--transition);
}

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

.tip-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--color-accent), #fbbf24);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.25);
}

.tip-item h4 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 6px;
  color: #fff;
}

.tip-item p {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255,255,255,0.6);
}

/* =========================================
   FAQ 区
========================================= */
.faq-section {
  padding: var(--section-space) 0;
  background: var(--color-bg);
}

.faq-wrapper {
  max-width: 800px;
  margin: 0 auto;
}

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

.faq-item:hover {
  border-color: rgba(37, 99, 235, 0.25);
  box-shadow: var(--shadow-sm);
}

.faq-item summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 22px 28px;
  font-size: 17px;
  font-weight: 600;
  color: var(--color-dark);
  cursor: pointer;
  list-style: none;
  position: relative;
}

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

.faq-item summary::after {
  content: '+';
  font-size: 24px;
  font-weight: 400;
  color: var(--color-primary);
  transition: transform 0.3s ease;
  line-height: 1;
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-item .faq-answer {
  padding: 0 28px 24px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-muted);
}

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

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.8) 0%, rgba(37, 99, 235, 0.7) 100%);
}

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

.cta-section h2 {
  font-size: 38px;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.cta-section p {
  max-width: 600px;
  margin: 0 auto 32px;
  font-size: 17px;
  color: rgba(255,255,255,0.85);
}

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

/* =========================================
   Footer
========================================= */
.site-footer {
  background: #0f172a;
  color: #94a3b8;
  padding: 70px 0 30px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 50px;
}

.footer-brand .logo a {
  color: #fff;
  margin-bottom: 16px;
  display: inline-flex;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: #94a3b8;
  margin-top: 18px;
  max-width: 340px;
}

.footer-col h4 {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 20px;
}

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

.footer-col a {
  font-size: 14px;
  color: #94a3b8;
  transition: var(--transition);
}

.footer-col a:hover {
  color: #fbbf24;
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 28px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 13px;
  color: #64748b;
}

.footer-bottom span:last-child {
  color: #94a3b8;
}

/* =========================================
   响应式断点
========================================= */
@media (max-width: 1024px) {
  :root {
    --section-space: 80px;
  }

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

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

  .stat-strip {
    grid-template-columns: repeat(2, 1fr);
    padding: 30px;
  }

  .feature-card {
    grid-template-columns: 1fr;
  }

  .feature-card:nth-child(even) .feature-thumb {
    order: 0;
  }

  .feature-thumb {
    min-height: 220px;
  }

  .page-hero h1 {
    font-size: 38px;
  }
}

@media (max-width: 768px) {
  :root {
    --section-space: 64px;
  }

  .header-inner {
    height: 64px;
  }

  .nav-toggle {
    display: flex;
  }

  .main-nav {
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    background: #fff;
    padding: 16px 20px;
    box-shadow: var(--shadow-lg);
    border-bottom: 1px solid var(--color-border);
    display: none;
    max-height: calc(100vh - 64px);
    overflow-y: auto;
  }

  .main-nav.open {
    display: flex;
  }

  .main-nav a {
    padding: 14px 18px;
    border-radius: var(--radius-sm);
  }

  .main-nav .nav-cta a {
    margin-left: 0;
    margin-top: 6px;
    text-align: center;
  }

  .page-hero {
    padding: 90px 0 80px;
  }

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

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

  .section-head h2 {
    font-size: 28px;
  }

  .tips-wrap {
    grid-template-columns: 1fr;
  }

  .cta-section h2 {
    font-size: 30px;
  }

  .faq-item summary {
    font-size: 15px;
    padding: 18px 20px;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .direct-grid,
  .steps-grid,
  .stat-strip {
    grid-template-columns: 1fr;
  }
}

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

  .logo a {
    font-size: 17px;
  }

  .logo-icon {
    width: 34px;
    height: 34px;
    font-size: 18px;
  }

  .page-hero {
    padding: 72px 0 64px;
  }

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

  .hero-btns {
    flex-direction: column;
    align-items: center;
  }

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

  .section-head {
    margin-bottom: 40px;
  }

  .section-head p {
    font-size: 14px;
  }

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

  .step-item {
    padding: 26px 20px;
  }

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

  .tip-item {
    padding: 20px;
  }

  .faq-item summary {
    padding: 16px;
    font-size: 14px;
  }

  .faq-item .faq-answer {
    padding: 0 16px 18px;
    font-size: 14px;
  }

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

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

  .cta-btns .btn {
    width: 100%;
  }

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