/* roulang page: index */
/* ===== 设计变量 ===== */
:root {
  --primary: #e63946;
  --primary-dark: #b02a37;
  --primary-light: #ff5d6c;
  --secondary: #f4a261;
  --secondary-dark: #d97735;
  --accent: #38bdf8;
  --bg-dark: #0a0c12;
  --bg-card: #151823;
  --bg-card-hover: #1d2130;
  --bg-deep: #070910;
  --bg-light: #f5f7fa;
  --text-light: #f1f3f5;
  --text-body: #aab3c2;
  --text-muted: #6b7280;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --radius: 12px;
  --radius-lg: 20px;
  --radius-sm: 8px;
  --shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.45);
  --transition: all 0.3s ease;
  --sidebar-width: 250px;
  --font-main: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-display: "PingFang SC", "Microsoft YaHei", sans-serif;
}
/* ===== Reset / Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-main);
  background: var(--bg-dark);
  color: var(--text-light);
  line-height: 1.75;
  font-size: 16px;
  overflow-x: hidden;
  min-height: 100vh;
}
a { color: inherit; text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-light); }
img { max-width: 100%; display: block; }
button, input, textarea { font-family: inherit; border: none; outline: none; }
ul, ol { list-style: none; }
.container { max-width: 1280px; margin: 0 auto; padding: 0 32px; }
.section-padding { padding: 90px 0; }
/* ===== 布局:左侧导航 ===== */
.site-layout { display: flex; min-height: 100vh; }
.site-main { flex: 1; margin-left: var(--sidebar-width); min-width: 0; }
/* ===== 侧边导航 ===== */
.side-nav {
  position: fixed;
  top: 0; left: 0;
  width: var(--sidebar-width);
  height: 100vh;
  background: var(--bg-card);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  z-index: 100;
  transition: transform 0.4s ease;
}
.nav-brand {
  padding: 28px 24px 18px;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 12px;
}
.nav-brand .logo-icon {
  width: 42px; height: 42px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; font-weight: 800;
  box-shadow: 0 4px 12px rgba(230, 57, 70, 0.4);
  flex-shrink: 0;
}
.nav-brand .logo-text {
  font-size: 16px; font-weight: 700; line-height: 1.3;
  background: linear-gradient(90deg, var(--text-light), #d0d5df);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.nav-links { flex: 1; padding: 24px 16px; display: flex; flex-direction: column; gap: 6px; overflow-y: auto; }
.nav-links a {
  display: flex; align-items: center; gap: 12px;
  padding: 13px 16px;
  border-radius: var(--radius);
  color: var(--text-body);
  font-size: 15px;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
  border: 1px solid transparent;
}
.nav-links a i { width: 20px; text-align: center; font-size: 16px; }
.nav-links a:hover, .nav-links a.active {
  background: rgba(230, 57, 70, 0.12);
  color: var(--text-light);
  border-color: rgba(230, 57, 70, 0.25);
  transform: translateX(4px);
}
.nav-links a.active::before {
  content: '';
  position: absolute; left: -16px; top: 50%;
  transform: translateY(-50%);
  width: 3px; height: 22px;
  background: var(--primary);
  border-radius: 0 3px 3px 0;
}
.nav-cta {
  padding: 20px 24px;
  border-top: 1px solid var(--border);
}
.nav-cta .btn-primary { width: 100%; justify-content: center; }
/* ===== 按钮 ===== */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 28px;
  border-radius: 10px;
  font-size: 15px; font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  line-height: 1.4;
  border: 2px solid transparent;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  box-shadow: 0 4px 16px rgba(230, 57, 70, 0.35);
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(230, 57, 70, 0.5);
  color: #fff;
}
.btn-secondary {
  background: transparent;
  color: var(--text-light);
  border-color: var(--border-strong);
}
.btn-secondary:hover {
  border-color: var(--primary);
  color: var(--primary-light);
  transform: translateY(-3px);
  background: rgba(230, 57, 70, 0.06);
}
.btn-lg { padding: 16px 38px; font-size: 16px; }
/* ===== 标签 / 徽章 ===== */
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 14px;
  border-radius: 50px;
  background: rgba(230, 57, 70, 0.15);
  color: var(--primary-light);
  font-size: 13px; font-weight: 500;
  border: 1px solid rgba(230, 57, 70, 0.3);
}
.badge-outline { background: transparent; border-color: var(--border-strong); color: var(--text-body); }
.tag {
  display: inline-block;
  padding: 3px 12px;
  border-radius: 50px;
  background: rgba(56, 189, 248, 0.12);
  color: var(--accent);
  font-size: 12px; font-weight: 500;
}
/* ===== Hero Section ===== */
.hero {
  position: relative;
  min-height: 560px;
  display: flex; align-items: center;
  background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(10, 12, 18, 0.95) 0%, rgba(10, 12, 18, 0.7) 50%, rgba(10, 12, 18, 0.3) 100%);
}
.hero .container { position: relative; z-index: 2; padding-top: 70px; padding-bottom: 70px; }
.hero-content { max-width: 620px; }
.hero .badge { margin-bottom: 22px; }
.hero-title {
  font-size: 48px; font-weight: 800; line-height: 1.2;
  margin-bottom: 18px;
  letter-spacing: 1px;
}
.hero-title .accent-text {
  background: linear-gradient(90deg, var(--primary-light), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-sub {
  font-size: 17px; color: var(--text-body);
  margin-bottom: 30px; line-height: 1.8;
  max-width: 520px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-stats {
  display: flex; gap: 0;
  margin-top: 40px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 28px;
  backdrop-filter: blur(10px);
  justify-content: space-between;
}
.stat-item { text-align: center; padding: 0 20px; }
.stat-item:not(:last-child) { border-right: 1px solid var(--border); }
.stat-num {
  font-size: 28px; font-weight: 800;
  font-family: "Arial", sans-serif;
  background: linear-gradient(135deg, var(--primary-light), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.stat-label { font-size: 13px; color: var(--text-muted); margin-top: 2px; }
/* ===== 板块标题 ===== */
.section-head { margin-bottom: 50px; text-align: center; }
.section-head .badge { margin-bottom: 14px; }
.section-title { font-size: 32px; font-weight: 700; margin-bottom: 12px; }
.section-desc { max-width: 640px; margin: 0 auto; color: var(--text-body); font-size: 15px; }
.section-head-left { text-align: left; margin-bottom: 40px; }
.section-head-left .section-desc { margin: 0; }
/* ===== 特点卡片 ===== */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 34px 30px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.feature-card::after {
  content: '';
  position: absolute; top: 0; left: 0;
  width: 100%; height: 3px;
  background: linear-gradient(90deg, var(--primary), transparent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s ease;
}
.feature-card:hover { transform: translateY(-6px); background: var(--bg-card-hover); box-shadow: var(--shadow); }
.feature-card:hover::after { transform: scaleX(1); }
.feature-icon {
  width: 54px; height: 54px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; margin-bottom: 20px;
  box-shadow: 0 4px 14px rgba(230, 57, 70, 0.35);
}
.feature-card:nth-child(2) .feature-icon { background: linear-gradient(135deg, var(--secondary), var(--secondary-dark)); box-shadow: 0 4px 14px rgba(244, 162, 97, 0.3); }
.feature-card:nth-child(3) .feature-icon { background: linear-gradient(135deg, var(--accent), #0ea5e9); box-shadow: 0 4px 14px rgba(56, 189, 248, 0.3); }
.feature-card h3 { font-size: 18px; margin-bottom: 10px; }
.feature-card p { color: var(--text-body); font-size: 14px; line-height: 1.7; }
/* ===== 分类卡片 ===== */
.category-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.category-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
}
.category-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: rgba(230, 57, 70, 0.35); }
.category-card .cover { position: relative; height: 190px; overflow: hidden; }
.category-card .cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
.category-card:hover .cover img { transform: scale(1.06); }
.category-card .cover::after { content: ''; position: absolute; inset: 0; background: linear-gradient(to top, var(--bg-card) 0%, transparent 50%); }
.category-card .tag { position: absolute; top: 14px; left: 14px; z-index: 2; background: rgba(10, 12, 18, 0.75); backdrop-filter: blur(4px); }
.category-card .body { padding: 24px; }
.category-card h3 { font-size: 18px; margin-bottom: 8px; }
.category-card p { font-size: 14px; color: var(--text-body); margin-bottom: 18px; line-height: 1.6; }
.card-link { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 600; color: var(--primary-light); }
.card-link i { transition: transform 0.3s ease; }
.card-link:hover i { transform: translateX(4px); }
/* ===== 资讯列表 ===== */
.news-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.news-card { display: flex; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; transition: var(--transition); }
.news-card:hover { border-color: rgba(230, 57, 70, 0.3); transform: translateX(4px); box-shadow: var(--shadow); }
.news-card .thumb { width: 160px; flex-shrink: 0; overflow: hidden; }
.news-card .thumb img { width: 100%; height: 100%; object-fit: cover; }
.news-card .info { padding: 18px 20px; display: flex; flex-direction: column; justify-content: center; }
.news-card .meta { display: flex; align-items: center; gap: 12px; margin-bottom: 8px; font-size: 12px; color: var(--text-muted); }
.news-card .meta .date { display: flex; align-items: center; gap: 4px; }
.news-card h3 { font-size: 16px; line-height: 1.5; font-weight: 600; overflow: hidden; text-overflow: ellipsis; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.news-card .desc { font-size: 13px; color: var(--text-body); margin-top: 6px; line-height: 1.5; overflow: hidden; text-overflow: ellipsis; display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; }
.news-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 20px;
  background: var(--bg-card);
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius);
  color: var(--text-muted);
}
/* ===== 数据 / 流程 ===== */
.process-section { background: var(--bg-deep); position: relative; overflow: hidden; }
.process-section::before { content: ''; position: absolute; top: -200px; right: -200px; width: 500px; height: 500px; border-radius: 50%; background: radial-gradient(circle, rgba(230, 57, 70, 0.08), transparent 70%); }
.process-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; position: relative; z-index: 2; }
.process-step { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px 22px; position: relative; transition: var(--transition); }
.process-step:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: rgba(230, 57, 70, 0.3); }
.step-num { font-size: 40px; font-weight: 800; color: rgba(230, 57, 70, 0.25); margin-bottom: 14px; line-height: 1; }
.process-step h3 { font-size: 16px; margin-bottom: 8px; }
.process-step p { font-size: 13px; color: var(--text-body); line-height: 1.6; }
.process-arrow { display: flex; align-items: center; justify-content: center; color: var(--primary-light); font-size: 20px; }
/* ===== FAQ ===== */
.faq-grid { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 28px;
  cursor: pointer;
  transition: var(--transition);
}
.faq-item:hover { border-color: rgba(230, 57, 70, 0.3); }
.faq-item summary { list-style: none; display: flex; justify-content: space-between; align-items: center; font-size: 16px; font-weight: 600; cursor: pointer; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary i { transition: transform 0.3s ease; color: var(--primary-light); }
.faq-item[open] summary i { transform: rotate(45deg); }
.faq-item p { margin-top: 14px; color: var(--text-body); font-size: 14px; line-height: 1.8; padding-top: 14px; border-top: 1px solid var(--border); }
/* ===== CTA ===== */
.cta-section {
  background: url('/assets/images/backpic/back-2.png') center/cover no-repeat fixed;
  position: relative;
  text-align: center;
  padding: 100px 0;
}
.cta-section::before { content: ''; position: absolute; inset: 0; background: rgba(10, 12, 18, 0.82); }
.cta-section .container { position: relative; z-index: 2; }
.cta-title { font-size: 34px; font-weight: 800; margin-bottom: 14px; }
.cta-desc { max-width: 560px; margin: 0 auto 32px; color: var(--text-body); font-size: 16px; }
/* ===== 页脚 ===== */
.site-footer {
  background: var(--bg-deep);
  border-top: 1px solid var(--border);
  padding: 50px 0 24px;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; margin-bottom: 32px; }
.footer-about p { color: var(--text-body); font-size: 14px; margin-top: 14px; line-height: 1.7; }
.footer-title { font-size: 15px; font-weight: 600; margin-bottom: 16px; color: var(--text-light); }
.footer-links a { display: block; color: var(--text-body); font-size: 14px; padding: 4px 0; }
.footer-links a:hover { color: var(--primary-light); padding-left: 4px; }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 20px;
  text-align: center;
  color: var(--text-muted);
  font-size: 13px;
}
.footer-bottom a { color: var(--text-muted); }
.footer-bottom a:hover { color: var(--primary-light); }
/* ===== 移动端导航 ===== */
.nav-toggle {
  display: none;
  position: fixed;
  top: 16px; right: 16px;
  z-index: 200;
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  width: 46px; height: 44px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--text-light);
}
.nav-mask {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 90;
  backdrop-filter: blur(2px);
}
/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .features-grid, .category-grid { grid-template-columns: repeat(2, 1fr); }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .hero-title { font-size: 38px; }
  .section-title { font-size: 28px; }
}
@media (max-width: 768px) {
  .side-nav { transform: translateX(-100%); }
  .side-nav.open { transform: translateX(0); box-shadow: 4px 0 30px rgba(0,0,0,0.5); }
  .site-main { margin-left: 0; }
  .nav-toggle { display: flex; }
  .nav-mask.show { display: block; }
  .hero { min-height: auto; padding: 60px 0; }
  .hero-stats { flex-direction: column; gap: 16px; }
  .stat-item:not(:last-child) { border-right: none; border-bottom: 1px solid var(--border); padding-bottom: 16px; }
  .news-grid { grid-template-columns: 1fr; }
  .news-card .thumb { width: 100px; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .container { padding: 0 20px; }
  .section-padding { padding: 60px 0; }
}
@media (max-width: 520px) {
  .features-grid, .category-grid, .process-steps { grid-template-columns: 1fr; }
  .hero-title { font-size: 30px; }
  .hero-actions { flex-direction: column; }
  .btn { width: 100%; justify-content: center; }
  .news-card { flex-direction: column; }
  .news-card .thumb { width: 100%; height: 140px; }
  .faq-item { padding: 18px 16px; }
  .section-title { font-size: 24px; }
}
/* 减少 motion 偏好 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

/* roulang page: category1 */
:root{
  --primary:#00e5ff;
  --primary-dark:#00b8d4;
  --primary-glow:rgba(0,229,255,0.35);
  --accent:#ffb300;
  --accent-glow:rgba(255,179,0,0.3);
  --bg-deep:#0b0f1a;
  --bg-dark:#111827;
  --bg-panel:#151d2e;
  --bg-card:#1a2438;
  --bg-hover:#212e48;
  --border-color:#233150;
  --text-light:#f1f5f9;
  --text-body:#b8c4d9;
  --text-muted:#7c8aa5;
  --radius-md:12px;
  --radius-lg:18px;
  --radius-xl:26px;
  --shadow-sm:0 2px 8px rgba(0,0,0,0.3);
  --shadow-md:0 8px 24px rgba(0,0,0,0.35);
  --shadow-lg:0 16px 48px rgba(0,0,0,0.45);
  --space-section:90px;
}
*{
  margin:0;
  padding:0;
  box-sizing:border-box;
}
html{
  scroll-behavior:smooth;
}
body{
  font-family:"Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  background:var(--bg-deep);
  color:var(--text-body);
  line-height:1.75;
  font-size:16px;
  min-height:100vh;
  display:flex;
  flex-direction:column;
}
a{
  text-decoration:none;
  color:inherit;
  transition:color 0.25s ease;
}
img{
  max-width:100%;
  display:block;
}
button,
input,
select{
  font-family:inherit;
  font-size:inherit;
  outline:none;
  border:none;
  background:none;
}
ul,ol{
  list-style:none;
}
.container{
  width:min(1280px,92%);
  margin-inline:auto;
}
::selection{
  background:rgba(0,229,255,0.25);
  color:#fff;
}
::-webkit-scrollbar{
  width:10px;
}
::-webkit-scrollbar-track{
  background:var(--bg-deep);
}
::-webkit-scrollbar-thumb{
  background:var(--bg-card);
  border-radius:20px;
}
::-webkit-scrollbar-thumb:hover{
  background:var(--border-color);
}

/* ===== 左侧竖直导航 ===== */
.site-layout{
  display:flex;
  min-height:100vh;
  flex:1;
}
.top-header{
  display:none;
}
.side-nav{
  width:280px;
  flex-shrink:0;
  background:var(--bg-dark);
  border-right:1px solid var(--border-color);
  position:fixed;
  top:0;
  bottom:0;
  left:0;
  z-index:100;
  display:flex;
  flex-direction:column;
  padding:32px 24px 24px;
  overflow-y:auto;
}
.nav-brand{
  display:flex;
  align-items:center;
  gap:12px;
  padding-bottom:26px;
  border-bottom:1px solid var(--border-color);
  margin-bottom:24px;
}
.logo-icon{
  width:44px;
  height:44px;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  border-radius:14px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight:900;
  font-size:20px;
  color:#0b0f1a;
  box-shadow:0 0 18px var(--primary-glow);
  flex-shrink:0;
}
.logo-text{
  font-size:17px;
  font-weight:900;
  color:var(--text-light);
  letter-spacing:0.5px;
  line-height:1.35;
}
.nav-links{
  display:flex;
  flex-direction:column;
  gap:6px;
  flex:1;
}
.nav-links a{
  display:flex;
  align-items:center;
  gap:14px;
  padding:13px 16px;
  border-radius:var(--radius-md);
  color:var(--text-body);
  font-weight:500;
  font-size:15px;
  border:1px solid transparent;
  transition:all 0.25s ease;
}
.nav-links a i{
  width:22px;
  text-align:center;
  font-size:16px;
  color:var(--text-muted);
  transition:color 0.25s ease;
}
.nav-links a:hover{
  background:var(--bg-hover);
  color:var(--text-light);
  transform:translateX(4px);
}
.nav-links a:hover i{
  color:var(--primary);
}
.nav-links a.active{
  background:linear-gradient(135deg,rgba(0,229,255,0.14),rgba(0,229,255,0.04));
  border-color:rgba(0,229,255,0.25);
  color:var(--primary);
  font-weight:700;
  box-shadow:0 0 18px rgba(0,229,255,0.08);
}
.nav-links a.active i{
  color:var(--primary);
}
.nav-cta{
  margin-top:24px;
  padding-top:20px;
  border-top:1px solid var(--border-color);
  background:var(--bg-panel);
  border-radius:var(--radius-lg);
  padding:20px 16px;
  position:relative;
  overflow:hidden;
}
.nav-cta::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:3px;
  background:linear-gradient(90deg,var(--primary),var(--accent),transparent);
}
.nav-cta span{
  font-size:14px;
  font-weight:700;
  color:var(--text-light);
  display:block;
  margin-bottom:6px;
}
.nav-cta p{
  font-size:12px;
  color:var(--text-muted);
  line-height:1.6;
}
.main-content{
  flex:1;
  margin-left:280px;
  display:flex;
  flex-direction:column;
  min-width:0;
}

/* ===== Hero / 页面横幅 ===== */
.page-banner{
  background:linear-gradient(135deg,rgba(11,15,26,0.9),rgba(17,24,39,0.75)),url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  padding:90px 0 70px;
  border-bottom:1px solid var(--border-color);
  position:relative;
  overflow:hidden;
}
.page-banner::after{
  content:"";
  position:absolute;
  bottom:0;
  left:0;
  right:0;
  height:1px;
  background:linear-gradient(90deg,var(--primary),transparent 70%);
}
.banner-breadcrumb{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:14px;
  color:var(--text-muted);
  margin-bottom:24px;
  flex-wrap:wrap;
}
.banner-breadcrumb a{
  color:var(--text-muted);
}
.banner-breadcrumb a:hover{
  color:var(--primary);
}
.banner-breadcrumb .sep{
  color:var(--border-color);
}
.banner-breadcrumb .current{
  color:var(--primary);
}
.page-banner h1{
  font-size:44px;
  font-weight:900;
  color:var(--text-light);
  line-height:1.2;
  margin-bottom:18px;
  letter-spacing:1px;
  position:relative;
}
.page-banner h1::after{
  content:"";
  display:block;
  width:64px;
  height:4px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  border-radius:4px;
  margin-top:18px;
}
.banner-desc{
  font-size:17px;
  color:var(--text-body);
  max-width:640px;
  line-height:1.8;
}
.banner-meta{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:28px;
}
.badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 16px;
  background:rgba(0,229,255,0.1);
  border:1px solid rgba(0,229,255,0.3);
  border-radius:30px;
  font-size:13px;
  color:var(--primary);
  font-weight:500;
}
.badge.amber{
  background:rgba(255,179,0,0.08);
  border-color:rgba(255,179,0,0.25);
  color:var(--accent);
}

/* ===== 通用区块 ===== */
.section{
  padding:var(--space-section) 0;
}
.section-header{
  text-align:center;
  margin-bottom:56px;
}
.section-header .section-tag{
  display:inline-block;
  font-size:13px;
  font-weight:700;
  letter-spacing:2px;
  color:var(--primary);
  text-transform:uppercase;
  background:rgba(0,229,255,0.08);
  padding:6px 18px;
  border-radius:30px;
  border:1px solid rgba(0,229,255,0.2);
  margin-bottom:16px;
}
.section-header h2{
  font-size:34px;
  font-weight:900;
  color:var(--text-light);
  margin-bottom:14px;
  line-height:1.3;
}
.section-header p{
  font-size:16px;
  color:var(--text-muted);
  max-width:680px;
  margin-inline:auto;
}

/* ===== 登录流程 ===== */
.flow-section{
  background:var(--bg-dark);
}
.flow-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.flow-step{
  background:var(--bg-panel);
  border:1px solid var(--border-color);
  border-radius:var(--radius-lg);
  padding:32px 24px;
  text-align:center;
  position:relative;
  transition:transform 0.3s ease,box-shadow 0.3s ease,border-color 0.3s ease;
}
.flow-step:hover{
  transform:translateY(-8px);
  box-shadow:var(--shadow-lg);
  border-color:rgba(0,229,255,0.4);
}
.step-num{
  width:56px;
  height:56px;
  margin-inline:auto;
  background:linear-gradient(135deg,rgba(0,229,255,0.18),rgba(0,229,255,0.04));
  border:1px solid rgba(0,229,255,0.3);
  border-radius:16px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:22px;
  font-weight:900;
  color:var(--primary);
  margin-bottom:20px;
  box-shadow:0 0 20px rgba(0,229,255,0.1);
}
.flow-step h3{
  font-size:18px;
  font-weight:700;
  color:var(--text-light);
  margin-bottom:12px;
}
.flow-step p{
  font-size:14px;
  color:var(--text-muted);
  line-height:1.7;
}

/* ===== 登录方式卡片 ===== */
.method-section{
  background:var(--bg-deep);
}
.method-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:28px;
}
.method-card{
  background:var(--bg-panel);
  border:1px solid var(--border-color);
  border-radius:var(--radius-xl);
  overflow:hidden;
  transition:transform 0.3s ease,box-shadow 0.3s ease;
  position:relative;
}
.method-card:hover{
  transform:translateY(-8px);
  box-shadow:var(--shadow-lg);
}
.method-card .card-image{
  height:200px;
  overflow:hidden;
  position:relative;
}
.method-card .card-image img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform 0.5s ease;
}
.method-card:hover .card-image img{
  transform:scale(1.05);
}
.card-image .image-mask{
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,transparent 40%,rgba(11,15,26,0.8));
}
.card-body{
  padding:26px 24px;
  position:relative;
  z-index:2;
}
.card-body h3{
  font-size:20px;
  font-weight:700;
  color:var(--text-light);
  margin-bottom:12px;
}
.card-body p{
  font-size:14px;
  color:var(--text-muted);
  line-height:1.75;
  margin-bottom:16px;
}
.card-tags{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
}
.card-tags span{
  font-size:12px;
  color:var(--text-body);
  background:rgba(255,255,255,0.05);
  border:1px solid var(--border-color);
  border-radius:20px;
  padding:4px 14px;
}

/* ===== 对比区块 ===== */
.compare-section{
  background:var(--bg-dark);
  position:relative;
  overflow:hidden;
}
.compare-section::before{
  content:"";
  position:absolute;
  top:-100px;
  right:-100px;
  width:300px;
  height:300px;
  background:radial-gradient(circle,rgba(0,229,255,0.08),transparent 70%);
}
.compare-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:32px;
}
.compare-panel{
  background:var(--bg-panel);
  border-radius:var(--radius-xl);
  padding:36px;
  border:1px solid var(--border-color);
  position:relative;
  transition:border-color 0.3s ease,box-shadow 0.3s ease;
}
.compare-panel:hover{
  border-color:rgba(0,229,255,0.35);
  box-shadow:var(--shadow-lg);
}
.compare-panel .panel-header{
  display:flex;
  align-items:center;
  gap:14px;
  margin-bottom:24px;
}
.panel-icon{
  width:48px;
  height:48px;
  border-radius:14px;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  color:#0b0f1a;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:20px;
  box-shadow:0 0 18px var(--primary-glow);
}
.panel-header h3{
  font-size:20px;
  font-weight:700;
  color:var(--text-light);
}
.compare-list li{
  display:flex;
  align-items:flex-start;
  gap:12px;
  padding:10px 0;
  font-size:14px;
  color:var(--text-body);
  border-bottom:1px dashed rgba(255,255,255,0.06);
}
.compare-list li:last-child{
  border-bottom:none;
}
.compare-list li i{
  color:var(--primary);
  font-size:14px;
  margin-top:6px;
  flex-shrink:0;
}
.compare-list li .li-title{
  color:var(--text-light);
  font-weight:600;
}

/* ===== 数据中心 / HUD ===== */
.hud-section{
  background:linear-gradient(135deg,var(--bg-deep),var(--bg-dark));
  position:relative;
}
.hud-section::before{
  content:"";
  position:absolute;
  inset:0;
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  opacity:0.12;
  z-index:0;
}
.hud-section .container{
  position:relative;
  z-index:2;
}
.hud-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
}
.hud-card{
  background:rgba(21,29,46,0.85);
  backdrop-filter:blur(10px);
  border:1px solid var(--border-color);
  border-radius:var(--radius-lg);
  padding:28px 24px;
  position:relative;
  overflow:hidden;
  transition:border-color 0.3s ease,transform 0.3s ease;
}
.hud-card::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:2px;
  background:linear-gradient(90deg,var(--primary),transparent);
}
.hud-card:hover{
  border-color:rgba(0,229,255,0.4);
  transform:translateY(-4px);
}
.hud-card .hud-value{
  font-size:36px;
  font-weight:900;
  color:var(--primary);
  font-family:"Impact","Noto Sans SC",sans-serif;
  letter-spacing:1px;
  margin-bottom:4px;
  text-shadow:0 0 18px rgba(0,229,255,0.3);
}
.hud-card .hud-diff{
  font-size:13px;
  color:var(--accent);
  margin-bottom:10px;
}
.hud-card .hud-label{
  font-size:14px;
  color:var(--text-body);
  font-weight:500;
}

/* ===== 内容列表 ===== */
.content-section{
  background:var(--bg-deep);
}
.content-list{
  max-width:860px;
  margin-inline:auto;
}
.content-item{
  display:flex;
  align-items:center;
  gap:20px;
  background:var(--bg-panel);
  border:1px solid var(--border-color);
  border-radius:var(--radius-lg);
  padding:22px 24px;
  margin-bottom:16px;
  transition:all 0.3s ease;
}
.content-item:hover{
  border-color:rgba(0,229,255,0.35);
  box-shadow:var(--shadow-md);
  transform:translateX(6px);
}
.content-item .content-icon{
  width:52px;
  height:52px;
  flex-shrink:0;
  border-radius:14px;
  background:linear-gradient(135deg,rgba(0,229,255,0.15),rgba(0,229,255,0.03));
  border:1px solid rgba(0,229,255,0.2);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:20px;
  color:var(--primary);
}
.content-item .content-text h3{
  font-size:17px;
  font-weight:700;
  color:var(--text-light);
  margin-bottom:4px;
}
.content-item .content-text p{
  font-size:14px;
  color:var(--text-muted);
  line-height:1.6;
}
.content-item .content-badge{
  margin-left:auto;
  flex-shrink:0;
  font-size:12px;
  padding:4px 14px;
  border-radius:20px;
  background:rgba(255,179,0,0.1);
  border:1px solid rgba(255,179,0,0.2);
  color:var(--accent);
  font-weight:500;
}

/* ===== FAQ ===== */
.faq-section{
  background:var(--bg-dark);
}
.faq-grid{
  max-width:880px;
  margin-inline:auto;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:20px;
}
.faq-item{
  background:var(--bg-panel);
  border:1px solid var(--border-color);
  border-radius:var(--radius-lg);
  padding:24px 26px;
  transition:all 0.3s ease;
}
.faq-item:hover{
  border-color:rgba(0,229,255,0.3);
  box-shadow:var(--shadow-sm);
}
.faq-item h3{
  font-size:16px;
  font-weight:700;
  color:var(--text-light);
  margin-bottom:12px;
  padding-left:20px;
  position:relative;
}
.faq-item h3::before{
  content:"Q";
  position:absolute;
  left:0;
  top:0;
  color:var(--primary);
  font-size:13px;
  font-weight:900;
  background:rgba(0,229,255,0.12);
  width:18px;
  height:18px;
  border-radius:6px;
  display:flex;
  align-items:center;
  justify-content:center;
}
.faq-item p{
  font-size:14px;
  color:var(--text-muted);
  line-height:1.75;
  padding-left:20px;
}

/* ===== CTA ===== */
.cta-section{
  background:var(--bg-deep);
  padding:70px 0;
}
.cta-box{
  background:linear-gradient(135deg,var(--bg-panel),var(--bg-card));
  border:1px solid var(--border-color);
  border-radius:var(--radius-xl);
  padding:56px 48px;
  text-align:center;
  position:relative;
  overflow:hidden;
}
.cta-box::before{
  content:"";
  position:absolute;
  inset:0;
  background:url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  opacity:0.06;
}
.cta-box .cta-inner{
  position:relative;
  z-index:2;
}
.cta-box h2{
  font-size:30px;
  font-weight:900;
  color:var(--text-light);
  margin-bottom:16px;
}
.cta-box p{
  font-size:16px;
  color:var(--text-body);
  max-width:560px;
  margin-inline:auto;
  margin-bottom:28px;
}
.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:14px 34px;
  border-radius:40px;
  font-weight:700;
  font-size:15px;
  cursor:pointer;
  transition:all 0.3s ease;
  border:1px solid transparent;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  color:#0b0f1a;
  box-shadow:0 4px 20px rgba(0,229,255,0.25);
}
.btn-primary:hover{
  box-shadow:0 6px 30px rgba(0,229,255,0.4);
  transform:translateY(-3px);
}
.btn-outline{
  border-color:var(--border-color);
  color:var(--text-light);
  background:rgba(255,255,255,0.02);
}
.btn-outline:hover{
  border-color:var(--primary);
  color:var(--primary);
  box-shadow:0 0 20px rgba(0,229,255,0.1);
}

/* ===== 页脚 ===== */
.site-footer{
  background:var(--bg-dark);
  border-top:1px solid var(--border-color);
  padding:60px 0 0;
  margin-top:auto;
}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1.4fr;
  gap:48px;
  padding-bottom:40px;
  border-bottom:1px solid rgba(255,255,255,0.05);
}
.nav-brand{
  display:flex;
  align-items:center;
  gap:12px;
}
.footer-about p{
  font-size:14px;
  color:var(--text-muted);
  line-height:1.8;
  margin-top:10px;
  max-width:360px;
}
.footer-title{
  font-size:16px;
  font-weight:700;
  color:var(--text-light);
  margin-bottom:18px;
  position:relative;
  padding-bottom:10px;
}
.footer-title::after{
  content:"";
  position:absolute;
  bottom:0;
  left:0;
  width:28px;
  height:3px;
  background:var(--primary);
  border-radius:4px;
}
.footer-links{
  display:flex;
  flex-direction:column;
}
.footer-links a{
  font-size:14px;
  color:var(--text-body);
  padding:6px 0;
  transition:all 0.25s ease;
}
.footer-links a:hover{
  color:var(--primary);
  transform:translateX(4px);
}
.footer-links p{
  font-size:14px;
  color:var(--text-body);
  line-height:1.8;
}
.footer-bottom{
  padding:22px 0;
  text-align:center;
  font-size:13px;
  color:var(--text-muted);
}
.footer-bottom a{
  color:var(--primary);
}
.footer-bottom a:hover{
  text-decoration:underline;
}

/* ===== 响应式 ===== */
@media (max-width:1200px){
  :root{
    --space-section:72px;
  }
  .side-nav{
    width:250px;
    padding:26px 20px;
  }
  .main-content{
    margin-left:250px;
  }
  .hud-grid{
    grid-template-columns:repeat(3,1fr);
  }
  .flow-grid{
    grid-template-columns:repeat(2,1fr);
  }
}
@media (max-width:1024px){
  .side-nav{
    transform:translateX(-100%);
    transition:transform 0.3s ease;
    width:290px;
  }
  .side-nav.open{
    transform:translateX(0);
    box-shadow:var(--shadow-lg);
  }
  .main-content{
    margin-left:0;
  }
  .top-header{
    display:flex;
    align-items:center;
    justify-content:space-between;
    background:var(--bg-dark);
    border-bottom:1px solid var(--border-color);
    padding:16px 24px;
    position:sticky;
    top:0;
    z-index:90;
  }
  .top-header .logo-text{
    font-size:16px;
  }
  .menu-toggle{
    width:44px;
    height:44px;
    border-radius:12px;
    border:1px solid var(--border-color);
    background:var(--bg-panel);
    color:var(--text-light);
    font-size:20px;
    cursor:pointer;
    display:flex;
    align-items:center;
    justify-content:center;
    transition:border-color 0.3s ease;
  }
  .menu-toggle:hover{
    border-color:var(--primary);
  }
  .nav-overlay{
    display:none;
    position:fixed;
    inset:0;
    background:rgba(0,0,0,0.6);
    z-index:95;
    backdrop-filter:blur(4px);
  }
  .nav-overlay.show{
    display:block;
  }
  .method-grid{
    grid-template-columns:1fr 1fr;
  }
  .compare-grid{
    grid-template-columns:1fr;
  }
  .faq-grid{
    grid-template-columns:1fr;
  }
  .footer-grid{
    grid-template-columns:1fr 1fr;
  }
}
@media (max-width:768px){
  :root{
    --space-section:56px;
  }
  .page-banner{
    padding:60px 0 50px;
  }
  .page-banner h1{
    font-size:32px;
  }
  .banner-desc{
    font-size:15px;
  }
  .section-header h2{
    font-size:26px;
  }
  .flow-grid{
    grid-template-columns:1fr;
  }
  .method-grid{
    grid-template-columns:1fr;
  }
  .hud-grid{
    grid-template-columns:1fr;
  }
  .footer-grid{
    grid-template-columns:1fr;
    gap:36px;
  }
  .cta-box{
    padding:40px 24px;
  }
  .cta-box h2{
    font-size:24px;
  }
  .content-item{
    flex-wrap:wrap;
    gap:12px;
  }
  .content-item .content-badge{
    margin-left:0;
  }
}
@media (max-width:520px){
  body{
    font-size:15px;
  }
  .container{
    width:90%;
  }
  .top-header{
    padding:12px 16px;
  }
  .top-header .logo-text{
    font-size:14px;
  }
  .page-banner{
    padding:48px 0 42px;
  }
  .page-banner h1{
    font-size:26px;
  }
  .banner-meta{
    gap:10px;
  }
  .badge{
    font-size:12px;
    padding:5px 12px;
  }
  .compare-panel{
    padding:24px 18px;
  }
  .faq-item{
    padding:20px 18px;
  }
  .cta-box{
    padding:32px 18px;
  }
  .btn{
    padding:12px 24px;
    font-size:14px;
  }
}

/* roulang page: category2 */
:root {
  --primary: #00e0ff;
  --primary-glow: rgba(0, 224, 255, 0.22);
  --primary-dark: #0096c4;
  --secondary: #ffc857;
  --accent: #ff5c7a;
  --success: #00e39a;
  --bg-base: #070b14;
  --bg-deep: #0b1120;
  --bg-card: #101826;
  --bg-elevated: #16202f;
  --text-head: #eaf4ff;
  --text-body: #aab8c8;
  --text-muted: #67788e;
  --border: rgba(120, 160, 200, 0.14);
  --border-hover: rgba(0, 224, 255, 0.35);
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --shadow-card: 0 12px 40px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 40px rgba(0, 224, 255, 0.1);
  --font-main: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background: var(--bg-base);
  color: var(--text-body);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

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

button {
  font-family: inherit;
  outline: none;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
}

/* ===== Header / Left Sidebar ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: 268px;
  background: var(--bg-deep);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  z-index: 200;
  backdrop-filter: blur(12px);
}

.header-top {
  padding: 32px 24px 18px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.logo-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 800;
  color: #041018;
  box-shadow: 0 0 28px var(--primary-glow);
  flex-shrink: 0;
}

.logo-text {
  font-size: 16px;
  font-weight: 800;
  color: var(--text-head);
  line-height: 1.35;
  letter-spacing: 0.5px;
}

.nav-links {
  padding: 22px 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.nav-links a {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 13px 16px;
  border-radius: var(--radius-md);
  color: var(--text-body);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  transition: all 0.25s ease;
  border: 1px solid transparent;
  letter-spacing: 0.3px;
}

.nav-links a i {
  width: 20px;
  text-align: center;
  font-size: 16px;
  color: var(--text-muted);
  transition: color 0.25s ease;
}

.nav-links a:hover {
  color: var(--text-head);
  background: rgba(0, 224, 255, 0.06);
  border-color: rgba(0, 224, 255, 0.1);
  transform: translateX(4px);
}

.nav-links a:hover i {
  color: var(--primary);
}

.nav-links a.active {
  color: var(--primary);
  background: rgba(0, 224, 255, 0.1);
  border-color: rgba(0, 224, 255, 0.28);
  box-shadow: 0 4px 24px rgba(0, 224, 255, 0.08);
}

.nav-links a.active i {
  color: var(--primary);
}

.sidebar-foot {
  margin-top: auto;
  padding: 20px 24px;
  border-top: 1px solid var(--border);
}

.sidebar-status {
  font-size: 13px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}

.sidebar-status i {
  font-size: 9px;
  color: var(--success);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: 10px;
  width: 42px;
  height: 42px;
  color: var(--text-head);
  font-size: 18px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: border-color 0.25s ease, background 0.25s ease;
}

.menu-toggle:hover {
  border-color: var(--primary);
  background: rgba(0, 224, 255, 0.06);
}

/* ===== Main Layout ===== */
.main-wrapper {
  margin-left: 268px;
  min-height: 80vh;
  background: var(--bg-base);
}

.site-footer {
  margin-left: 268px;
}

/* ===== Hero ===== */
.hero-section {
  position: relative;
  padding: 96px 0 88px;
  background: url('/assets/images/backpic/back-2.png') no-repeat center center / cover;
  border-bottom: 1px solid var(--border);
}

.hero-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(7, 11, 20, 0.94) 12%, rgba(7, 11, 20, 0.74) 48%, rgba(7, 11, 20, 0.5) 100%);
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 700px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(0, 224, 255, 0.1);
  border: 1px solid rgba(0, 224, 255, 0.25);
  color: var(--primary);
  border-radius: 999px;
  padding: 8px 18px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 26px;
}

.hero-tag i {
  font-size: 13px;
}

.hero-title {
  font-size: 42px;
  font-weight: 800;
  line-height: 1.18;
  color: var(--text-head);
  margin-bottom: 20px;
  letter-spacing: -1px;
}

.hero-desc {
  font-size: 16px;
  line-height: 1.85;
  color: var(--text-body);
  max-width: 580px;
  margin-bottom: 34px;
}

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

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  transition: all 0.25s ease;
  cursor: pointer;
  border: 1px solid transparent;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #041018;
  box-shadow: 0 6px 26px rgba(0, 224, 255, 0.22);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 34px rgba(0, 224, 255, 0.32);
}

.btn-ghost {
  background: transparent;
  color: var(--text-head);
  border-color: var(--border-hover);
}

.btn-ghost:hover {
  background: rgba(0, 224, 255, 0.06);
  border-color: var(--primary);
  transform: translateY(-2px);
}

/* ===== Section Common ===== */
.section-block {
  padding: 80px 0;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 28px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.section-tag {
  display: block;
  font-size: 12px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--primary);
  font-weight: 700;
  margin-bottom: 8px;
}

.section-title {
  font-size: 30px;
  font-weight: 800;
  color: var(--text-head);
  line-height: 1.2;
  letter-spacing: -0.5px;
}

.section-desc {
  color: var(--text-body);
  font-size: 15px;
  max-width: 640px;
  line-height: 1.75;
}

/* ===== Stats ===== */
.stats-section {
  padding: 48px 0;
  border-bottom: 1px solid var(--border);
  background: var(--bg-deep);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 30px 26px;
  position: relative;
  overflow: hidden;
  transition: border-color 0.3s ease, transform 0.3s ease;
}

.stat-card::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 70px;
  height: 70px;
  background: radial-gradient(circle, var(--primary-glow), transparent 72%);
  border-radius: 50%;
  transform: translate(30%, -30%);
}

.stat-card:hover {
  border-color: rgba(0, 224, 255, 0.22);
  transform: translateY(-3px);
}

.stat-num {
  font-size: 36px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 10px;
  font-variant-numeric: tabular-nums;
}

.stat-label {
  font-size: 14px;
  color: var(--text-muted);
  font-weight: 600;
  letter-spacing: 1px;
}

/* ===== Match Cards ===== */
.match-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.match-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
  display: flex;
  flex-direction: column;
}

.match-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.42);
  border-color: rgba(0, 224, 255, 0.25);
}

.match-cover {
  position: relative;
  height: 190px;
  overflow: hidden;
  background: var(--bg-elevated);
}

.match-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s ease;
}

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

.match-status {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(7, 11, 20, 0.6);
  backdrop-filter: blur(8px);
  color: var(--text-head);
  font-size: 12px;
  font-weight: 700;
  padding: 5px 14px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  letter-spacing: 0.5px;
}

.match-status.live {
  color: #fff;
  border-color: rgba(0, 224, 255, 0.4);
}

.match-status.live::before {
  content: '';
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  margin-right: 6px;
  animation: pulse 1.2s infinite;
}

.match-body {
  padding: 22px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.match-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--primary);
  font-weight: 700;
  letter-spacing: 1px;
  margin-bottom: 10px;
}

.match-tag i {
  font-size: 12px;
}

.match-title {
  font-size: 18px;
  font-weight: 800;
  color: var(--text-head);
  margin-bottom: 8px;
}

.match-desc {
  font-size: 14px;
  color: var(--text-body);
  line-height: 1.65;
  margin-bottom: 18px;
  flex: 1;
}

.match-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-muted);
}

.match-meta span {
  display: flex;
  align-items: center;
  gap: 6px;
}

.match-meta i {
  color: var(--primary);
  width: 15px;
  font-size: 13px;
}

/* ===== Timeline ===== */
.timeline-section {
  background: var(--bg-deep);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 80px 0;
}

.timeline {
  position: relative;
  padding-left: 34px;
  max-width: 820px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 12px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: linear-gradient(to bottom, var(--primary), rgba(0, 224, 255, 0.05));
}

.timeline-item {
  position: relative;
  padding: 18px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 18px;
  transition: border-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -29px;
  top: 26px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 18px var(--primary-glow);
  border: 2px solid var(--bg-deep);
}

.timeline-item:hover {
  border-color: rgba(0, 224, 255, 0.25);
  transform: translateX(4px);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.3);
}

.timeline-time {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--primary);
  font-weight: 800;
  margin-bottom: 8px;
  letter-spacing: 1px;
}

.timeline-time i {
  font-size: 12px;
}

.timeline-title {
  color: var(--text-head);
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 4px;
}

.timeline-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ===== Analysis Panel ===== */
.analysis-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 26px;
  align-items: stretch;
}

.analysis-chart {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.chart-title {
  font-size: 18px;
  font-weight: 800;
  color: var(--text-head);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.chart-title i {
  color: var(--primary);
  font-size: 16px;
}

.bar-row {
  margin-bottom: 22px;
}

.bar-label {
  display: flex;
  justify-content: space-between;
  font-size: 14px;
  color: var(--text-body);
  margin-bottom: 8px;
  font-weight: 600;
}

.bar-track {
  height: 10px;
  background: var(--bg-elevated);
  border-radius: 999px;
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--primary), var(--primary-dark));
  box-shadow: 0 0 12px var(--primary-glow);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-right: 10px;
  font-size: 11px;
  font-weight: 800;
  color: #041018;
  min-width: 40px;
}

.bar-fill.secondary {
  background: linear-gradient(90deg, var(--secondary), #f59f00);
  box-shadow: 0 0 12px rgba(255, 200, 87, 0.2);
}

.chart-extra {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 10px;
}

.chart-extra-item {
  background: var(--bg-elevated);
  border-radius: var(--radius-sm);
  padding: 14px 12px;
  text-align: center;
}

.chart-extra-item .num {
  font-size: 18px;
  font-weight: 800;
  color: var(--text-head);
  display: block;
}

.chart-extra-item .label {
  font-size: 12px;
  color: var(--text-muted);
}

.analysis-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  min-height: 320px;
  display: flex;
  align-items: flex-end;
}

.analysis-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.analysis-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(7, 11, 20, 0.92) 10%, rgba(7, 11, 20, 0.35) 60%, rgba(7, 11, 20, 0.2) 100%);
}

.analysis-overlay {
  position: relative;
  z-index: 2;
  padding: 28px;
}

.analysis-overlay h3 {
  color: var(--text-head);
  font-size: 20px;
  font-weight: 800;
  margin-bottom: 6px;
}

.analysis-overlay p {
  color: var(--text-body);
  font-size: 14px;
  line-height: 1.6;
}

/* ===== News List ===== */
.news-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.news-item {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  transition: all 0.3s ease;
  text-decoration: none;
}

.news-item:hover {
  border-color: rgba(0, 224, 255, 0.2);
  background: var(--bg-elevated);
  transform: translateY(-2px);
}

.news-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(0, 224, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 16px;
  flex-shrink: 0;
  border: 1px solid rgba(0, 224, 255, 0.12);
}

.news-content {
  flex: 1;
}

.news-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-head);
  margin-bottom: 5px;
  line-height: 1.5;
}

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

.news-date i {
  font-size: 12px;
}

/* ===== FAQ ===== */
.faq-section {
  background: var(--bg-deep);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 80px 0;
}

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

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  overflow: hidden;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.faq-item.active {
  border-color: rgba(0, 224, 255, 0.3);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.25);
}

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  background: none;
  border: none;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 700;
  color: var(--text-head);
  cursor: pointer;
  text-align: left;
  transition: color 0.3s ease;
}

.faq-question i {
  transition: transform 0.3s ease;
  color: var(--primary);
  font-size: 14px;
  flex-shrink: 0;
}

.faq-item.active .faq-question i {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.faq-answer p {
  padding: 0 24px 20px;
  color: var(--text-body);
  font-size: 15px;
  line-height: 1.8;
}

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

.cta-card {
  position: relative;
  background: linear-gradient(135deg, rgba(0, 224, 255, 0.07), rgba(0, 119, 182, 0.12));
  border: 1px solid rgba(0, 224, 255, 0.16);
  border-radius: 28px;
  padding: 56px 60px;
  text-align: center;
  overflow: hidden;
}

.cta-card::before {
  content: '';
  position: absolute;
  top: -90px;
  right: -90px;
  width: 240px;
  height: 240px;
  background: radial-gradient(circle, rgba(0, 224, 255, 0.14), transparent 70%);
  border-radius: 50%;
}

.cta-card::after {
  content: '';
  position: absolute;
  bottom: -70px;
  left: -70px;
  width: 180px;
  height: 180px;
  background: radial-gradient(circle, rgba(255, 200, 87, 0.1), transparent 70%);
  border-radius: 50%;
}

.cta-title {
  font-size: 28px;
  font-weight: 800;
  color: var(--text-head);
  margin-bottom: 14px;
  position: relative;
  z-index: 1;
}

.cta-desc {
  color: var(--text-body);
  font-size: 15px;
  max-width: 660px;
  margin: 0 auto 30px;
  line-height: 1.75;
  position: relative;
  z-index: 1;
}

.cta-actions {
  position: relative;
  z-index: 1;
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--bg-deep);
  border-top: 1px solid var(--border);
  padding: 56px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 40px;
}

.footer-about p {
  font-size: 14px;
  color: var(--text-body);
  line-height: 1.75;
  margin-top: 8px;
}

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

.footer-title {
  font-size: 16px;
  font-weight: 800;
  color: var(--text-head);
  margin-bottom: 14px;
  letter-spacing: 0.5px;
}

.footer-links a {
  font-size: 14px;
  color: var(--text-body);
  transition: color 0.25s ease, transform 0.25s ease;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.footer-links a:hover {
  color: var(--primary);
  transform: translateX(3px);
}

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

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

.footer-bottom a {
  color: var(--text-body);
  transition: color 0.25s ease;
}

.footer-bottom a:hover {
  color: var(--primary);
}

/* ===== Responsive ===== */
@media (max-width: 1023px) {
  .site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: auto;
    width: 100%;
    height: 68px;
    border-right: none;
    border-bottom: 1px solid var(--border);
    flex-direction: row;
    align-items: center;
    padding: 0 16px;
    background: rgba(11, 17, 32, 0.95);
    backdrop-filter: blur(16px);
  }

  .header-top {
    padding: 0;
    border-bottom: none;
    flex: 1;
  }

  .nav-brand {
    gap: 10px;
  }

  .logo-icon {
    width: 34px;
    height: 34px;
    font-size: 15px;
    border-radius: 10px;
  }

  .logo-text {
    font-size: 15px;
  }

  .menu-toggle {
    display: inline-flex;
    margin-left: 12px;
  }

  .nav-links {
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: rgba(11, 17, 32, 0.98);
    border-bottom: 1px solid var(--border);
    border-top: 1px solid var(--border);
    padding: 14px 16px 18px;
    flex-direction: column;
    display: none;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.35);
    backdrop-filter: blur(20px);
  }

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

  .sidebar-foot {
    display: none;
  }

  .main-wrapper,
  .site-footer {
    margin-left: 0;
  }

  .main-wrapper {
    padding-top: 68px;
  }

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

  .hero-title {
    font-size: 36px;
  }

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

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

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

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

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

@media (max-width: 768px) {
  .container {
    padding: 0 20px;
  }

  .section-block {
    padding: 60px 0;
  }

  .timeline-section,
  .faq-section {
    padding: 60px 0;
  }

  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
    margin-bottom: 28px;
  }

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

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

  .stats-section {
    padding: 36px 0;
  }

  .chart-extra {
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
  }

  .cta-card {
    padding: 40px 24px;
    border-radius: 20px;
  }

  .cta-title {
    font-size: 24px;
  }

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

  .footer-about {
    padding-bottom: 8px;
  }
}

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

  .hero-section {
    padding: 56px 0 48px;
  }

  .hero-title {
    font-size: 28px;
  }

  .hero-desc {
    font-size: 15px;
    margin-bottom: 24px;
  }

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

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

  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .stat-card {
    padding: 22px 18px;
  }

  .stat-num {
    font-size: 28px;
  }

  .analysis-chart {
    padding: 22px 18px;
  }

  .chart-extra {
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
  }

  .chart-extra-item {
    padding: 10px 6px;
  }

  .timeline-item {
    padding: 16px 18px;
  }

  .news-item {
    flex-direction: column;
    gap: 12px;
  }

  .news-icon {
    width: 38px;
    height: 38px;
    font-size: 14px;
  }

  .faq-question {
    padding: 16px 18px;
    font-size: 15px;
  }

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

  .cta-actions {
    flex-direction: column;
    width: 100%;
  }

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

  .cta-card {
    padding: 32px 20px;
  }

  .footer-grid {
    gap: 24px;
  }
}

/* roulang page: article */
:root {
  --primary: #0f172a;
  --primary-light: #1e293b;
  --primary-lighter: #334155;
  --accent: #f59e0b;
  --accent-dark: #d97706;
  --accent-light: #fbbf24;
  --bg: #f1f5f9;
  --bg-soft: #e2e8f0;
  --bg-dark: #0b1120;
  --surface: #ffffff;
  --text: #0f172a;
  --text-body: #475569;
  --text-muted: #94a3b8;
  --border: #e2e8f0;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --shadow: 0 4px 24px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 12px 40px rgba(15, 23, 42, 0.14);
  --shadow-accent: 0 8px 24px rgba(245, 158, 11, 0.35);
  --transition: 0.3s ease;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
}
ul, ol { list-style: none; }
a { color: inherit; text-decoration: none; transition: color var(--transition); }
img { max-width: 100%; height: auto; display: block; }
button, input, textarea { font-family: inherit; font-size: inherit; }

.site-shell { display: flex; min-height: 100vh; width: 100%; }
.main-area { flex: 1; min-width: 0; margin-left: 264px; display: flex; flex-direction: column; }
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding-left: 24px; padding-right: 24px; }

.sidebar {
  position: fixed;
  top: 0; left: 0; bottom: 0;
  width: 264px;
  background: var(--bg-dark);
  color: #e2e8f0;
  display: flex;
  flex-direction: column;
  z-index: 200;
  padding: 28px 20px;
  overflow-y: auto;
}
.brand-wrap { margin-bottom: 32px; padding-bottom: 24px; border-bottom: 1px solid rgba(148, 163, 184, 0.15); }
.nav-brand { display: flex; align-items: center; gap: 12px; padding: 8px; border-radius: 12px; transition: background var(--transition); }
.logo-icon {
  width: 44px; height: 44px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #0b1120;
  display: flex; align-items: center; justify-content: center;
  border-radius: 12px;
  font-size: 20px; font-weight: 800;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.4);
}
.logo-text { font-size: 18px; font-weight: 800; letter-spacing: 0.5px; color: #fff; line-height: 1.3; }
.brand-sub { font-size: 12px; color: rgba(226, 232, 240, 0.6); margin-top: 10px; letter-spacing: 1px; }

.nav-links { display: flex; flex-direction: column; gap: 6px; flex: 1; }
.nav-links a {
  display: flex; align-items: center; gap: 12px;
  padding: 13px 16px;
  border-radius: 12px;
  font-size: 15px; font-weight: 500;
  color: #cbd5e1;
  transition: all var(--transition);
  border: 1px solid transparent;
}
.nav-links a i { width: 20px; text-align: center; font-size: 16px; }
.nav-links a:hover {
  background: rgba(148, 163, 184, 0.12);
  color: #fff;
  transform: translateX(4px);
  border-color: rgba(245, 158, 11, 0.3);
}
.nav-links a.active {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.2), rgba(245, 158, 11, 0.08));
  color: #fbbf24;
  font-weight: 700;
  border-color: rgba(245, 158, 11, 0.35);
  box-shadow: 0 4px 16px rgba(245, 158, 11, 0.15);
}

.sidebar-bottom { margin-top: 20px; padding-top: 20px; border-top: 1px solid rgba(148, 163, 184, 0.15); }
.side-status { display: flex; align-items: center; gap: 8px; font-size: 13px; color: #94a3b8; margin-bottom: 8px; }
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: #22c55e; box-shadow: 0 0 0 4px rgba(34, 197, 94, 0.2); }
.sidebar-bottom p { font-size: 12px; color: rgba(148, 163, 184, 0.7); line-height: 1.5; }

.mobile-header {
  display: none;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  height: 64px;
  background: var(--bg-dark);
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 300;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
}
.logo-sm { display: flex; align-items: center; gap: 8px; font-size: 16px; font-weight: 800; color: #fff; }
.logo-sm i { color: var(--accent); }
.menu-toggle {
  background: transparent;
  border: none;
  color: #fff;
  font-size: 22px;
  padding: 8px 12px;
  border-radius: 8px;
  cursor: pointer;
  transition: background var(--transition);
}
.menu-toggle:hover { background: rgba(255, 255, 255, 0.1); }

.page-banner {
  background-size: cover;
  background-position: center;
  position: relative;
  padding: 72px 0;
  color: #fff;
  overflow: hidden;
}
.page-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(2, 6, 23, 0.92) 0%, rgba(15, 23, 42, 0.78) 60%, rgba(15, 23, 42, 0.4) 100%);
}
.page-banner .container { position: relative; z-index: 2; }
.banner-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(245, 158, 11, 0.18);
  border: 1px solid rgba(245, 158, 11, 0.4);
  color: #fbbf24;
  padding: 6px 16px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 16px;
}
.page-banner h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); font-weight: 800; line-height: 1.3; margin-bottom: 12px; }
.page-banner p { font-size: 16px; color: rgba(226, 232, 240, 0.85); max-width: 640px; }

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 18px 0;
  font-size: 14px;
  color: var(--text-muted);
  background: transparent;
}
.breadcrumb a { color: var(--text-muted); transition: color var(--transition); }
.breadcrumb a:hover { color: var(--accent-dark); }
.breadcrumb .sep { font-size: 10px; color: #cbd5e1; }
.breadcrumb .current { color: var(--text); font-weight: 600; max-width: 360px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.article-section { padding: 20px 0 56px; }
.article-layout { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 32px; align-items: start; }
.article-main { min-width: 0; }
.article-card { background: var(--surface); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; }
.article-header { padding: 32px 32px 0; }
.article-title { font-size: clamp(1.6rem, 3vw, 2.2rem); line-height: 1.35; font-weight: 800; color: var(--text); }
.article-meta { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 16px; font-size: 14px; color: var(--text-muted); }
.article-meta span { display: inline-flex; align-items: center; gap: 6px; }
.article-content { padding: 24px 32px 32px; }
.article-content h2 { font-size: 1.5rem; margin: 32px 0 14px; color: var(--text); font-weight: 700; }
.article-content h3 { font-size: 1.25rem; margin: 24px 0 10px; color: var(--text); }
.article-content p { margin-bottom: 16px; color: var(--text-body); }
.article-content img { border-radius: var(--radius-sm); box-shadow: var(--shadow); margin: 20px 0; }
.article-content ul, .article-content ol { margin: 0 0 16px 20px; }
.article-content ul li, .article-content ol li { margin-bottom: 8px; color: var(--text-body); }
.article-content ul li::marker { color: var(--accent); }
.article-content blockquote {
  border-left: 4px solid var(--accent);
  background: linear-gradient(135deg, #fffbeb, #fef3c7);
  padding: 16px 24px;
  border-radius: 0 12px 12px 0;
  margin: 24px 0;
  color: var(--text-body);
}
.article-content a { color: var(--accent-dark); text-decoration: underline; }
.article-content table { width: 100%; border-collapse: collapse; margin: 24px 0; }
.article-content table th, .article-content table td { padding: 12px; border: 1px solid var(--border); text-align: left; }

.article-footer {
  padding: 20px 32px 28px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.tag-list { display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--bg);
  color: var(--text-body);
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 13px;
}
.tag i { color: var(--accent); }

.not-found {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 64px 32px;
  text-align: center;
}
.not-found-icon {
  width: 72px; height: 72px;
  margin: 0 auto 20px;
  background: linear-gradient(135deg, #fee2e2, #fecaca);
  color: #dc2626;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 30px;
}
.not-found h2 { font-size: 1.8rem; margin-bottom: 12px; color: var(--text); }
.not-found p { color: var(--text-muted); margin-bottom: 24px; }

.article-sidebar { position: sticky; top: 24px; display: flex; flex-direction: column; gap: 24px; }
.sidebar-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(226, 232, 240, 0.6);
}
.sidebar-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 16px;
  padding-left: 12px;
  border-left: 4px solid var(--accent);
  line-height: 1.4;
}
.sidebar-title i { color: var(--accent); }
.sidebar-nav { display: flex; flex-direction: column; gap: 8px; }
.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-body);
  background: var(--bg);
  transition: all var(--transition);
}
.sidebar-nav a:hover {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.15), rgba(245, 158, 11, 0.05));
  color: var(--accent-dark);
  transform: translateX(4px);
}
.sidebar-nav a i { color: var(--accent); width: 18px; text-align: center; }
.sidebar-card p { font-size: 14px; color: var(--text-body); margin-bottom: 12px; }
.side-card-accent {
  background: linear-gradient(135deg, #fffbf0, #fef3c7);
  border-color: #fde68a;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  transition: all var(--transition);
  cursor: pointer;
  border: 2px solid transparent;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #0b1120;
  box-shadow: var(--shadow-accent);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(245, 158, 11, 0.45); }
.btn-outline { background: transparent; color: var(--text); border-color: var(--border); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent-dark); background: rgba(245, 158, 11, 0.06); }
.btn-light { background: #fff; color: var(--primary); border-color: #fff; }
.btn-light:hover { background: #f8fafc; transform: translateY(-2px); box-shadow: 0 8px 20px rgba(255, 255, 255, 0.2); }
.btn-block { width: 100%; }

.cta-section { padding: 24px 0 56px; }
.cta-box {
  position: relative;
  background-size: cover;
  background-position: center;
  border-radius: var(--radius-lg);
  padding: 48px;
  overflow: hidden;
  color: #fff;
}
.cta-box::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(2, 6, 23, 0.92), rgba(15, 23, 42, 0.7));
}
.cta-content { position: relative; z-index: 2; }
.cta-content h2 { font-size: clamp(1.5rem, 3vw, 2rem); margin-bottom: 12px; }
.cta-content p { color: rgba(226, 232, 240, 0.85); max-width: 600px; margin-bottom: 24px; }
.cta-actions { display: flex; flex-wrap: wrap; gap: 16px; }

.site-footer { background: var(--bg-dark); color: #e2e8f0; padding: 48px 0 24px; margin-top: auto; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(148, 163, 184, 0.15);
}
.footer-about p { font-size: 14px; color: #94a3b8; line-height: 1.6; }
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-title { font-size: 16px; font-weight: 700; color: #f1f5f9; margin-bottom: 8px; }
.footer-links a { font-size: 14px; color: #94a3b8; transition: color var(--transition); }
.footer-links a:hover { color: var(--accent); }
.footer-bottom { padding-top: 20px; font-size: 13px; color: #94a3b8; text-align: center; }
.footer-bottom a { color: #cbd5e1; }

@media (max-width: 1200px) {
  .article-layout { grid-template-columns: minmax(0, 1fr) 300px; gap: 24px; }
}
@media (max-width: 1024px) {
  .article-layout { grid-template-columns: 1fr; }
  .article-sidebar { position: static; display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
  .cta-actions { flex-wrap: wrap; }
}
@media (max-width: 991px) {
  .sidebar {
    position: fixed;
    top: 64px;
    left: 0;
    bottom: auto;
    width: 100%;
    height: auto;
    max-height: calc(100vh - 64px);
    padding: 20px;
    transform: translateY(-120%);
    transition: transform 0.3s ease;
    border-bottom: 1px solid rgba(148, 163, 184, 0.2);
  }
  .sidebar.open { transform: translateY(0); }
  .mobile-header { display: flex; }
  .main-area { margin-left: 0; }
  .page-banner { padding: 56px 0; }
  .brand-wrap { margin-bottom: 16px; padding-bottom: 16px; }
  .sidebar-bottom { display: none; }
}
@media (max-width: 768px) {
  .container { padding-left: 16px; padding-right: 16px; }
  .article-layout { gap: 24px; }
  .article-sidebar { grid-template-columns: 1fr; }
  .article-header { padding: 24px 20px 0; }
  .article-content { padding: 20px; }
  .article-footer { padding: 16px 20px 24px; }
  .cta-box { padding: 32px 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .cta-actions { flex-direction: column; align-items: stretch; }
  .btn { justify-content: center; }
  .page-banner h1 { font-size: 1.5rem; }
  .breadcrumb .current { max-width: 200px; }
}
@media (max-width: 520px) {
  .page-banner h1 { font-size: 1.4rem; }
  .article-title { font-size: 1.35rem; }
  .footer-grid { grid-template-columns: 1fr; }
  .sidebar-nav a { font-size: 13px; }
  .not-found { padding: 48px 20px; }
}

/* roulang page: category3 */
/* ===== 设计变量 ===== */
    :root {
        --bg-deep: #080c16;
        --bg-main: #0b101c;
        --bg-card: #131c30;
        --bg-hover: #1a2540;
        --border: #223046;
        --border-light: #2d3d59;
        --text-title: #e6ecf5;
        --text-body: #a3b0c4;
        --text-weak: #6b7a90;
        --accent: #38bdf8;
        --accent-dark: #0ea5e9;
        --gold: #fbbf24;
        --gold-dark: #d97706;
        --green: #34d399;
        --red: #f87171;
        --radius: 14px;
        --radius-sm: 10px;
        --shadow: 0 10px 32px rgba(0, 0, 0, 0.35);
        --shadow-sm: 0 4px 14px rgba(0, 0, 0, 0.25);
        --transition: all 0.25s ease;
        --sidebar-width: 268px;
        --container-pad: clamp(20px, 4vw, 48px);
    }

    /* ===== Reset / Base ===== */
    * {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
    }
    html {
        scroll-behavior: smooth;
    }
    body {
        font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
        background: var(--bg-main);
        color: var(--text-body);
        line-height: 1.7;
        min-height: 100vh;
        -webkit-font-smoothing: antialiased;
    }
    img {
        max-width: 100%;
        display: block;
    }
    a {
        color: var(--accent);
        text-decoration: none;
        transition: var(--transition);
    }
    a:hover {
        color: #7dd3fc;
    }
    ul,
    ol {
        list-style: none;
    }
    button {
        font-family: inherit;
        cursor: pointer;
    }

    /* ===== 容器 ===== */
    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 var(--container-pad);
    }

    /* ===== 侧边栏导航 ===== */
    .sidebar {
        position: fixed;
        top: 0;
        left: 0;
        bottom: 0;
        width: var(--sidebar-width);
        background: var(--bg-deep);
        border-right: 1px solid var(--border);
        padding: 32px 24px;
        display: flex;
        flex-direction: column;
        z-index: 50;
    }
    .sidebar-brand-row {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding-bottom: 24px;
        border-bottom: 1px solid var(--border);
        margin-bottom: 22px;
    }
    .nav-brand {
        display: flex;
        align-items: center;
        gap: 12px;
    }
    .logo-icon {
        width: 42px;
        height: 42px;
        border-radius: 12px;
        background: linear-gradient(135deg, var(--accent), var(--gold));
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 18px;
        font-weight: 800;
        color: #0b101c;
        flex-shrink: 0;
        box-shadow: 0 4px 16px rgba(56, 189, 248, 0.25);
    }
    .logo-text {
        font-size: 15px;
        font-weight: 700;
        color: var(--text-title);
        line-height: 1.4;
        letter-spacing: 0.2px;
    }
    .nav-toggle {
        display: none;
        background: none;
        border: 1px solid var(--border);
        color: var(--text-body);
        padding: 6px 10px;
        border-radius: 8px;
        font-size: 16px;
        line-height: 1;
        transition: var(--transition);
    }
    .nav-toggle:hover {
        color: var(--accent);
        border-color: var(--accent);
    }
    .nav-links {
        display: flex;
        flex-direction: column;
        gap: 6px;
        flex: 1;
    }
    .nav-links a {
        display: flex;
        align-items: center;
        gap: 12px;
        padding: 12px 14px;
        border-radius: 10px;
        font-size: 14px;
        font-weight: 500;
        color: var(--text-body);
        transition: var(--transition);
    }
    .nav-links a i {
        width: 20px;
        text-align: center;
        font-size: 15px;
        color: var(--text-weak);
        transition: var(--transition);
    }
    .nav-links a:hover {
        background: var(--bg-hover);
        color: var(--text-title);
    }
    .nav-links a:hover i {
        color: var(--accent);
    }
    .nav-links a.active {
        background: rgba(56, 189, 248, 0.12);
        color: #7dd3fc;
    }
    .nav-links a.active i {
        color: var(--accent);
    }
    .sidebar-extra {
        margin-top: 20px;
        padding-top: 20px;
        border-top: 1px solid var(--border);
    }
    .sidebar-extra p {
        font-size: 13px;
        color: var(--text-weak);
        line-height: 1.6;
    }
    .sidebar-extra a {
        font-size: 14px;
        color: var(--accent);
        word-break: break-all;
        margin-top: 6px;
        display: inline-block;
    }

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

    /* ===== Hero ===== */
    .hero {
        position: relative;
        padding: 90px 0 80px;
        background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
    }
    .hero::before {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(90deg, rgba(8, 12, 22, 0.97) 0%, rgba(8, 12, 22, 0.85) 55%, rgba(8, 12, 22, 0.45) 100%);
    }
    .hero .container {
        position: relative;
        z-index: 1;
    }
    .hero-inner {
        display: grid;
        grid-template-columns: 1.2fr 0.8fr;
        gap: 44px;
        align-items: center;
    }
    .hero-badge {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: rgba(56, 189, 248, 0.1);
        border: 1px solid rgba(56, 189, 248, 0.25);
        color: #7dd3fc;
        padding: 6px 14px;
        border-radius: 999px;
        font-size: 13px;
        font-weight: 600;
        letter-spacing: 0.3px;
        margin-bottom: 18px;
    }
    .hero h1 {
        font-size: clamp(30px, 4vw, 46px);
        font-weight: 800;
        color: var(--text-title);
        line-height: 1.2;
        margin-bottom: 18px;
        letter-spacing: 0.5px;
    }
    .hero-copy>p {
        font-size: 16px;
        color: var(--text-body);
        max-width: 540px;
        margin-bottom: 30px;
        line-height: 1.8;
    }
    .hero-actions {
        display: flex;
        gap: 12px;
        flex-wrap: wrap;
    }

    /* ===== 按钮 ===== */
    .btn {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 13px 24px;
        border-radius: 10px;
        font-size: 14px;
        font-weight: 600;
        transition: var(--transition);
        border: 1px solid transparent;
    }
    .btn-primary {
        background: var(--accent);
        color: #0b101c;
    }
    .btn-primary:hover {
        background: #7dd3fc;
        color: #0b101c;
        transform: translateY(-2px);
        box-shadow: 0 8px 20px rgba(56, 189, 248, 0.3);
    }
    .btn-gold {
        background: var(--gold);
        color: #0b101c;
    }
    .btn-gold:hover {
        background: #fcd34d;
        color: #0b101c;
        transform: translateY(-2px);
        box-shadow: 0 8px 20px rgba(251, 191, 36, 0.3);
    }
    .btn-ghost {
        background: transparent;
        border-color: rgba(255, 255, 255, 0.15);
        color: var(--text-body);
    }
    .btn-ghost:hover {
        border-color: var(--accent);
        color: var(--accent);
        transform: translateY(-2px);
    }

    /* ===== HUD 面板 ===== */
    .hud-panel {
        background: rgba(15, 23, 42, 0.72);
        border: 1px solid rgba(56, 189, 248, 0.2);
        border-radius: 16px;
        padding: 20px;
        box-shadow: var(--shadow);
        backdrop-filter: blur(8px);
        position: relative;
        overflow: hidden;
    }
    .hud-panel::after {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 2px;
        background: linear-gradient(90deg, transparent, var(--accent), transparent);
    }
    .hud-header {
        display: flex;
        align-items: center;
        gap: 10px;
        color: var(--text-title);
        font-size: 14px;
        font-weight: 600;
        padding-bottom: 14px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .hud-header .fa-circle {
        font-size: 8px;
        color: var(--green);
        margin-left: auto;
    }
    .hud-body {
        padding: 20px 0 14px;
    }
    .hud-score {
        text-align: center;
        margin-bottom: 18px;
    }
    .score-ring {
        width: 86px;
        height: 86px;
        margin: 0 auto;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 22px;
        font-weight: 800;
        color: var(--green);
        background: radial-gradient(circle, rgba(52, 211, 153, 0.12) 0%, transparent 70%);
        border: 3px solid rgba(52, 211, 153, 0.5);
        box-shadow: 0 0 24px rgba(52, 211, 153, 0.2);
    }
    .hud-score p {
        font-size: 12px;
        color: var(--text-weak);
        margin-top: 10px;
    }
    .hud-list {
        display: flex;
        flex-direction: column;
        gap: 10px;
        margin-bottom: 16px;
    }
    .hud-list li {
        font-size: 14px;
        color: var(--text-body);
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .hud-list li i {
        color: var(--green);
        font-size: 14px;
    }
    .hud-footer {
        display: flex;
        align-items: center;
        gap: 8px;
        border-top: 1px solid rgba(255, 255, 255, 0.08);
        padding-top: 12px;
        font-size: 12px;
        color: var(--text-weak);
    }
    .status-dot {
        width: 8px;
        height: 8px;
        border-radius: 50%;
        background: var(--green);
        box-shadow: 0 0 8px var(--green);
        margin-left: auto;
    }

    /* ===== 区块通用 ===== */
    .section {
        padding: 84px 0;
    }
    .section-alt {
        background: var(--bg-deep);
        border-top: 1px solid var(--border);
        border-bottom: 1px solid var(--border);
    }
    .section-dark {
        background: linear-gradient(135deg, #0d1424, #0a0f1c);
        border-top: 1px solid var(--border);
        border-bottom: 1px solid var(--border);
    }
    .section-head {
        text-align: center;
        max-width: 640px;
        margin: 0 auto 48px;
    }
    .section-tag {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        font-size: 13px;
        font-weight: 600;
        color: var(--accent);
        background: rgba(56, 189, 248, 0.1);
        padding: 5px 14px;
        border-radius: 999px;
        letter-spacing: 0.3px;
        margin-bottom: 14px;
    }
    .section-head h2 {
        font-size: clamp(24px, 3vw, 36px);
        color: var(--text-title);
        font-weight: 800;
        line-height: 1.25;
        margin-bottom: 12px;
    }
    .section-head p {
        font-size: 15px;
        color: var(--text-weak);
        line-height: 1.7;
    }

    /* ===== 卡片网格 ===== */
    .card-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 22px;
    }
    .card {
        background: var(--bg-card);
        border: 1px solid var(--border);
        border-radius: var(--radius);
        padding: 30px 26px;
        transition: var(--transition);
        position: relative;
        overflow: hidden;
    }
    .card::after {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 2px;
        background: linear-gradient(90deg, transparent, rgba(56, 189, 248, 0.5), transparent);
        opacity: 0;
        transition: var(--transition);
    }
    .card:hover {
        transform: translateY(-6px);
        border-color: rgba(56, 189, 248, 0.35);
        box-shadow: var(--shadow);
    }
    .card:hover::after {
        opacity: 1;
    }
    .card-icon {
        width: 50px;
        height: 50px;
        border-radius: 12px;
        background: rgba(56, 189, 248, 0.12);
        color: var(--accent);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 20px;
        margin-bottom: 18px;
        transition: var(--transition);
    }
    .card:hover .card-icon {
        background: rgba(56, 189, 248, 0.2);
        transform: scale(1.05);
    }
    .card h3 {
        font-size: 17px;
        color: var(--text-title);
        font-weight: 700;
        margin-bottom: 10px;
    }
    .card p {
        font-size: 14px;
        color: var(--text-body);
        line-height: 1.75;
        margin-bottom: 18px;
    }
    .card-tags {
        display: flex;
        gap: 8px;
        flex-wrap: wrap;
    }
    .tag {
        font-size: 12px;
        color: var(--text-body);
        background: rgba(255, 255, 255, 0.04);
        border: 1px solid var(--border);
        padding: 4px 10px;
        border-radius: 6px;
        transition: var(--transition);
    }
    .tag:hover {
        border-color: var(--accent);
        color: var(--accent);
    }

    /* ===== 图文 Split ===== */
    .split-block {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 52px;
        align-items: center;
    }
    .split-media {
        position: relative;
    }
    .split-media img {
        border-radius: var(--radius);
        box-shadow: var(--shadow);
        object-fit: cover;
        width: 100%;
        height: 100%;
        min-height: 320px;
    }
    .split-media::after {
        content: '';
        position: absolute;
        inset: 0;
        border: 1px solid rgba(56, 189, 248, 0.2);
        border-radius: var(--radius);
        pointer-events: none;
    }
    .split-content .section-tag {
        margin-bottom: 12px;
    }
    .split-content h2 {
        font-size: clamp(22px, 2.8vw, 32px);
        color: var(--text-title);
        font-weight: 800;
        line-height: 1.3;
        margin-bottom: 14px;
    }
    .split-content>p {
        font-size: 15px;
        color: var(--text-body);
        line-height: 1.8;
        margin-bottom: 20px;
    }
    .check-list {
        display: flex;
        flex-direction: column;
        gap: 12px;
    }
    .check-list li {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 14px;
        color: var(--text-body);
        background: rgba(255, 255, 255, 0.03);
        border: 1px solid var(--border);
        padding: 12px 16px;
        border-radius: 10px;
        transition: var(--transition);
    }
    .check-list li:hover {
        border-color: rgba(52, 211, 153, 0.3);
        background: rgba(52, 211, 153, 0.04);
    }
    .check-list i {
        color: var(--green);
        font-size: 15px;
    }

    /* ===== 流程 ===== */
    .flow-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 20px;
    }
    .flow-step {
        text-align: center;
        padding: 32px 20px;
        background: var(--bg-card);
        border: 1px solid var(--border);
        border-radius: var(--radius);
        transition: var(--transition);
        position: relative;
    }
    .flow-step:hover {
        transform: translateY(-4px);
        border-color: rgba(251, 191, 36, 0.35);
        box-shadow: var(--shadow-sm);
    }
    .step-num {
        display: inline-flex;
        width: 46px;
        height: 46px;
        border-radius: 50%;
        background: rgba(251, 191, 36, 0.12);
        color: var(--gold);
        font-weight: 800;
        font-size: 15px;
        align-items: center;
        justify-content: center;
        margin-bottom: 18px;
        border: 1px solid rgba(251, 191, 36, 0.2);
    }
    .flow-step h4 {
        font-size: 16px;
        color: var(--text-title);
        margin-bottom: 8px;
        font-weight: 700;
    }
    .flow-step p {
        font-size: 13px;
        color: var(--text-weak);
        line-height: 1.7;
    }

    /* ===== 数据指标 ===== */
    .stats-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 20px;
    }
    .stat-item {
        text-align: center;
        padding: 36px 16px;
        background: rgba(255, 255, 255, 0.02);
        border: 1px solid var(--border);
        border-radius: var(--radius);
        transition: var(--transition);
    }
    .stat-item:hover {
        border-color: rgba(251, 191, 36, 0.3);
        background: rgba(251, 191, 36, 0.03);
    }
    .stat-item strong {
        font-size: clamp(28px, 4vw, 42px);
        font-weight: 800;
        color: var(--gold);
        display: block;
        line-height: 1.2;
    }
    .stat-item span {
        font-size: 14px;
        color: var(--text-weak);
        display: block;
        margin-top: 8px;
    }

    /* ===== FAQ ===== */
    .faq-list {
        max-width: 820px;
        margin: 0 auto;
        display: flex;
        flex-direction: column;
        gap: 12px;
    }
    .faq-item {
        background: var(--bg-card);
        border: 1px solid var(--border);
        border-radius: var(--radius);
        overflow: hidden;
        transition: var(--transition);
    }
    .faq-item[open] {
        border-color: rgba(56, 189, 248, 0.3);
        box-shadow: var(--shadow-sm);
    }
    .faq-item summary {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 20px 24px;
        font-size: 15px;
        font-weight: 600;
        color: var(--text-title);
        cursor: pointer;
        list-style: none;
        transition: var(--transition);
    }
    .faq-item summary::-webkit-details-marker {
        display: none;
    }
    .faq-item summary:hover {
        color: #7dd3fc;
    }
    .faq-item summary i {
        color: var(--text-weak);
        transition: var(--transition);
        font-size: 14px;
        flex-shrink: 0;
        margin-left: 12px;
    }
    .faq-item[open] summary i {
        transform: rotate(180deg);
        color: var(--accent);
    }
    .faq-content {
        padding: 0 24px 22px;
        font-size: 14px;
        color: var(--text-body);
        line-height: 1.85;
        border-top: 1px solid rgba(255, 255, 255, 0.05);
        margin-top: 2px;
    }
    .faq-content p {
        padding-top: 16px;
    }

    /* ===== CTA ===== */
    .cta-wrap {
        padding-top: 24px;
        padding-bottom: 84px;
    }
    .cta-box {
        background: linear-gradient(135deg, rgba(56, 189, 248, 0.08), rgba(251, 191, 36, 0.05)), var(--bg-card);
        border: 1px solid rgba(56, 189, 248, 0.2);
        border-radius: 18px;
        padding: 48px 50px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 32px;
        flex-wrap: wrap;
        position: relative;
        overflow: hidden;
    }
    .cta-box::after {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 2px;
        background: linear-gradient(90deg, var(--accent), var(--gold), var(--accent));
    }
    .cta-box h2 {
        font-size: 26px;
        color: var(--text-title);
        margin-bottom: 8px;
        font-weight: 800;
    }
    .cta-box p {
        font-size: 15px;
        color: var(--text-body);
        max-width: 520px;
        line-height: 1.7;
    }
    .cta-actions {
        display: flex;
        gap: 12px;
        flex-wrap: wrap;
    }

    /* ===== 页脚 ===== */
    .site-footer {
        background: var(--bg-deep);
        border-top: 1px solid var(--border);
        padding: 48px 0 32px;
        margin-top: auto;
    }
    .footer-grid {
        display: grid;
        grid-template-columns: 2fr 1.2fr 1fr;
        gap: 40px;
        margin-bottom: 32px;
    }
    .footer-about p {
        font-size: 14px;
        color: var(--text-weak);
        line-height: 1.75;
        margin-top: 12px;
        max-width: 360px;
    }
    .footer-links {
        display: flex;
        flex-direction: column;
        gap: 8px;
    }
    .footer-title {
        font-size: 15px;
        font-weight: 700;
        color: var(--text-title);
        margin-bottom: 12px;
    }
    .footer-links a {
        font-size: 14px;
        color: var(--text-body);
    }
    .footer-links a:hover {
        color: var(--accent);
    }
    .footer-links p {
        font-size: 14px;
        color: var(--text-body);
        line-height: 1.8;
    }
    .footer-bottom {
        border-top: 1px solid var(--border);
        padding-top: 20px;
        display: flex;
        justify-content: center;
    }
    .footer-bottom p {
        font-size: 13px;
        color: var(--text-weak);
        text-align: center;
        line-height: 1.6;
    }
    .footer-bottom a {
        color: var(--text-body);
    }
    .footer-bottom a:hover {
        color: var(--accent);
    }

    /* ===== 响应式 ===== */
    @media (max-width: 1100px) {
        .card-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .flow-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .split-block {
            gap: 32px;
        }
    }
    @media (max-width: 992px) {
        .sidebar {
            position: sticky;
            top: 0;
            width: 100%;
            height: auto;
            padding: 12px 20px;
            border-right: none;
            border-bottom: 1px solid var(--border);
            display: block;
            flex-direction: row;
            align-items: center;
        }
        .sidebar-brand-row {
            padding-bottom: 0;
            border-bottom: none;
            margin-bottom: 0;
        }
        .logo-icon {
            width: 34px;
            height: 34px;
            font-size: 15px;
        }
        .logo-text {
            font-size: 14px;
        }
        .nav-toggle {
            display: inline-flex;
        }
        .nav-links {
            display: none;
            background: var(--bg-deep);
            padding: 14px 0 8px;
            border-top: 1px solid var(--border);
            margin-top: 12px;
        }
        .nav-links.open {
            display: flex;
        }
        .sidebar-extra {
            display: none;
        }
        .main-content {
            margin-left: 0;
        }
        .hero {
            padding: 64px 0 56px;
        }
        .hero-inner {
            grid-template-columns: 1fr;
            gap: 36px;
        }
        .hero-copy>p {
            max-width: 100%;
        }
        .hud-panel {
            max-width: 480px;
        }
        .split-block {
            grid-template-columns: 1fr;
        }
        .split-media img {
            min-height: 240px;
            max-height: 360px;
            width: 100%;
            object-fit: cover;
        }
        .stats-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .footer-grid {
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }
    }
    @media (max-width: 640px) {
        .section {
            padding: 60px 0;
        }
        .card-grid {
            grid-template-columns: 1fr;
        }
        .flow-grid {
            grid-template-columns: 1fr 1fr;
            gap: 14px;
        }
        .flow-step {
            padding: 24px 16px;
        }
        .stats-grid {
            grid-template-columns: 1fr 1fr;
            gap: 14px;
        }
        .stat-item {
            padding: 24px 14px;
        }
        .cta-box {
            padding: 36px 28px;
            justify-content: center;
            text-align: center;
        }
        .cta-actions {
            justify-content: center;
        }
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 28px;
        }
        .footer-links {
            gap: 6px;
        }
        .hero-actions {
            flex-direction: column;
            align-items: stretch;
        }
        .hero-actions .btn {
            justify-content: center;
        }
    }
    @media (max-width: 480px) {
        .flow-grid {
            grid-template-columns: 1fr;
        }
        .stats-grid {
            grid-template-columns: 1fr;
        }
        .split-block {
            gap: 24px;
        }
        .btn {
            padding: 12px 18px;
            font-size: 13px;
        }
        .section-head {
            margin-bottom: 34px;
        }
        .faq-item summary {
            padding: 18px 18px;
            font-size: 14px;
        }
        .faq-content {
            padding: 0 18px 18px;
        }
    }