/* roulang page: index */
/* ========== 设计变量 ========== */
:root {
  --bg-primary: #070B13;
  --bg-secondary: #0C1320;
  --bg-hover: #111C30;
  --glass-bg: rgba(255,255,255,0.04);
  --glass-border: rgba(255,255,255,0.12);
  --brand-blue: #2563EB;
  --brand-blue-light: #4F83FF;
  --amber: #E8A63A;
  --amber-hover: #F5BE50;
  --text-primary: #E6ECF5;
  --text-secondary: #9CA9BF;
  --text-muted: #5C6A82;
  --success: #34D399;
  --warning: #F59E0B;
  --error: #F87171;
  --radius-card: 16px;
  --radius-btn: 12px;
  --radius-badge: 999px;
  --radius-input: 8px;
  --shadow-card: 0 12px 32px rgba(0,0,0,0.35);
  --shadow-card-hover: 0 18px 40px rgba(0,0,0,0.45);
  --shadow-btn: 0 0 18px rgba(232,166,58,0.35);
  --shadow-btn-hover: 0 0 28px rgba(245,190,80,0.45);
  --font-sans: "PingFang SC", "HarmonicOS Sans SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-num: "Inter", "Roboto", sans-serif;
  --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========== Reset & 基础 ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-primary);
  background: var(--bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a {
  color: var(--brand-blue);
  text-decoration: none;
  transition: var(--transition-base);
}
a:hover { color: var(--brand-blue-light); }
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
  border-radius: 4px;
}
ul, ol { list-style: none; }
input, button { font-family: inherit; font-size: inherit; border: none; background: none; color: inherit; }
button { cursor: pointer; }

/* ========== 容器 ========== */
.f-grid {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ========== 顶部导航 ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(7, 11, 19, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(232, 166, 58, 0.2);
  transition: var(--transition-base);
}
.header-top {
  height: 38px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  transition: height 0.3s ease;
}
.header-top .f-grid {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}
.brand-logo {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  gap: 10px;
  white-space: nowrap;
  transition: var(--transition-base);
}
.brand-logo i {
  color: var(--amber);
  font-size: 20px;
}
.brand-logo:hover { color: var(--amber); }
.header-search {
  display: flex;
  align-items: center;
  gap: 8px;
  max-width: 320px;
  flex: 1;
  margin-left: 32px;
}
.header-search form {
  display: flex;
  align-items: center;
  width: 100%;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-input);
  padding: 4px 6px 4px 14px;
  transition: var(--transition-base);
}
.header-search form:focus-within {
  border-color: var(--amber);
  box-shadow: 0 0 0 3px rgba(232, 166, 58, 0.2);
}
.header-search input {
  flex: 1;
  background: transparent;
  color: var(--text-primary);
  font-size: 14px;
  padding: 6px 0;
  outline: none;
}
.header-search input::placeholder { color: var(--text-muted); }
.header-search button {
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--amber), var(--amber-hover));
  color: #0C1320;
  border-radius: var(--radius-input);
  font-size: 14px;
  transition: var(--transition-base);
}
.header-search button:hover {
  transform: scale(1.06);
  box-shadow: var(--shadow-btn);
}
.header-nav {
  height: 50px;
  display: flex;
  align-items: center;
  transition: height 0.3s ease;
}
.header-nav .f-grid {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-links li a {
  display: block;
  padding: 8px 18px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-btn);
  position: relative;
  transition: var(--transition-base);
}
.nav-links li a:hover {
  color: var(--amber);
  background: rgba(232, 166, 58, 0.08);
}
.nav-links li a.active {
  color: var(--amber);
  background: rgba(232, 166, 58, 0.1);
  font-weight: 700;
}
.nav-links li a.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 18px;
  right: 18px;
  height: 2px;
  background: linear-gradient(90deg, var(--amber), transparent);
  border-radius: 2px;
}
.nav-hot {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
}
.nav-hot .hot-tag {
  color: var(--text-secondary);
  padding: 4px 12px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-badge);
  font-size: 13px;
  transition: var(--transition-base);
}
.nav-hot .hot-tag:hover {
  color: var(--amber);
  border-color: rgba(232, 166, 58, 0.5);
  background: rgba(232, 166, 58, 0.08);
}
.mobile-toggle {
  display: none;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--text-primary);
  font-size: 20px;
  transition: var(--transition-base);
}
.mobile-toggle:hover {
  color: var(--amber);
  border-color: rgba(232, 166, 58, 0.4);
}
/* 滚动压缩导航 */
.site-header.scrolled .header-top { height: 32px; }
.site-header.scrolled .header-nav { height: 46px; }

/* 移动端抽屉 */
.mobile-drawer {
  display: none;
  position: fixed;
  top: 0;
  right: -320px;
  width: 320px;
  height: 100vh;
  background: var(--bg-secondary);
  border-left: 1px solid rgba(255, 255, 255, 0.08);
  z-index: 1100;
  padding: 24px;
  overflow-y: auto;
  transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.mobile-drawer.open { right: 0; }
.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}
.drawer-close {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
  font-size: 18px;
}
.drawer-close:hover { color: var(--amber); border-color: rgba(232, 166, 58, 0.4); }
.drawer-search { margin-bottom: 20px; }
.drawer-search form {
  display: flex;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-input);
  overflow: hidden;
}
.drawer-search input {
  flex: 1;
  background: transparent;
  padding: 10px 14px;
  color: var(--text-primary);
  font-size: 14px;
  outline: none;
}
.drawer-search button {
  width: 44px;
  background: var(--amber);
  color: #0C1320;
  font-size: 14px;
}
.drawer-nav { margin-bottom: 24px; }
.drawer-nav a {
  display: block;
  padding: 12px 16px;
  border-radius: 10px;
  color: var(--text-primary);
  font-size: 15px;
  font-weight: 500;
  margin-bottom: 4px;
  transition: var(--transition-base);
}
.drawer-nav a:hover { background: rgba(232, 166, 58, 0.08); color: var(--amber); }
.drawer-nav a.active { background: rgba(232, 166, 58, 0.12); color: var(--amber); }
.drawer-hot {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.drawer-hot a {
  padding: 6px 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-badge);
  color: var(--text-secondary);
  font-size: 13px;
}
.drawer-hot a:hover { border-color: var(--amber); color: var(--amber); }
.drawer-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 1050;
  backdrop-filter: blur(4px);
}
.drawer-overlay.open { display: block; }

/* ========== Hero ========== */
.hero {
  position: relative;
  padding: 100px 0 90px;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(7, 11, 19, 0.95) 0%, rgba(7, 11, 19, 0.8) 50%, rgba(7, 11, 19, 0.4) 100%);
}
.hero::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(232, 166, 58, 0.6), transparent);
}
.hero .f-grid { position: relative; z-index: 2; }
.hero-content { max-width: 600px; }
.hero h1 {
  font-size: 46px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
  margin-bottom: 24px;
  letter-spacing: 1px;
}
.hero h1 .highlight {
  background: linear-gradient(90deg, var(--amber), var(--amber-hover));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 36px;
  max-width: 520px;
}
.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 30px;
  background: linear-gradient(135deg, var(--amber), #D9942E);
  color: #0C1320;
  font-size: 15px;
  font-weight: 700;
  border-radius: var(--radius-btn);
  box-shadow: var(--shadow-btn);
  transition: var(--transition-base);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-btn-hover);
  color: #0C1320;
  background: linear-gradient(135deg, var(--amber-hover), var(--amber));
}
.btn-primary:active { transform: translateY(1px); }
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 30px;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: var(--text-primary);
  font-size: 15px;
  font-weight: 500;
  border-radius: var(--radius-btn);
  transition: var(--transition-base);
}
.btn-secondary:hover {
  border-color: var(--amber);
  background: rgba(255, 255, 255, 0.06);
  color: var(--amber);
  transform: translateY(-2px);
}
.btn-secondary:active { transform: translateY(1px); }
.hero-image {
  position: relative;
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--glass-border);
}
.hero-image img {
  width: 100%;
  height: 380px;
  object-fit: cover;
  transition: transform 0.8s ease;
}
.hero-image:hover img { transform: scale(1.03); }
.hero-image .image-overlay {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 28px;
  background: linear-gradient(transparent, rgba(7, 11, 19, 0.9));
}
.hero-image .image-overlay p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.6;
}
.hero-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  padding: 6px 16px;
  background: rgba(232, 166, 58, 0.2);
  border: 1px solid rgba(232, 166, 58, 0.5);
  color: var(--amber-hover);
  font-size: 13px;
  font-weight: 700;
  border-radius: var(--radius-badge);
  backdrop-filter: blur(8px);
}
.hero-scroll {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  color: var(--text-muted);
  font-size: 20px;
  animation: bounce 2s infinite;
  transition: color 0.3s;
}
.hero-scroll:hover { color: var(--amber); }
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ========== 信任指标 ========== */
.trust-bar {
  padding: 40px 0;
  background: var(--bg-secondary);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}
.trust-item {
  text-align: center;
  padding: 20px 12px;
  border-radius: var(--radius-card);
  transition: var(--transition-base);
}
.trust-item:hover {
  background: var(--glass-bg);
  transform: translateY(-3px);
  border: 1px solid var(--glass-border);
}
.trust-item .num {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: 34px;
  font-weight: 700;
  color: var(--amber);
  line-height: 1.2;
  margin-bottom: 6px;
}
.trust-item .label {
  font-size: 13px;
  color: var(--text-secondary);
  letter-spacing: 1px;
}

/* ========== 板块通用 ========== */
.section { padding: 90px 0; }
.section-dark { background: var(--bg-secondary); }
.section-header { margin-bottom: 48px; }
.section-header .tag-line {
  display: inline-block;
  padding: 6px 16px;
  border: 1px solid rgba(232, 166, 58, 0.3);
  border-radius: var(--radius-badge);
  color: var(--amber);
  font-size: 13px;
  letter-spacing: 2px;
  margin-bottom: 16px;
  background: rgba(232, 166, 58, 0.06);
}
.section-header h2 {
  font-size: 34px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-primary);
  margin-bottom: 16px;
}
.section-header .sub {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 640px;
  line-height: 1.8;
}

/* ========== 痛点 ========== */
.pain-points {
  background: var(--bg-primary);
  position: relative;
}
.pain-points::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.08), transparent);
}
.pain-left h2 {
  font-size: 34px;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 20px;
}
.pain-left p {
  color: var(--text-secondary);
  line-height: 1.8;
}
.pain-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-card);
  padding: 26px 24px;
  margin-bottom: 16px;
  transition: var(--transition-base);
  display: flex;
  align-items: flex-start;
  gap: 16px;
}
.pain-card:hover {
  border-color: rgba(232, 166, 58, 0.5);
  background: rgba(232, 166, 58, 0.05);
  transform: translateX(6px);
  box-shadow: var(--shadow-card-hover);
}
.pain-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(232, 166, 58, 0.1);
  border: 1px solid rgba(232, 166, 58, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--amber);
  font-size: 18px;
  flex-shrink: 0;
}
.pain-body h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}
.pain-body p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ========== 解决方案 ========== */
.solution {
  background: var(--bg-secondary);
  position: relative;
  overflow: hidden;
}
.solution::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -20%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.08), transparent 70%);
  border-radius: 50%;
}
.solution .f-grid { position: relative; z-index: 2; }
.solution-image {
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--glass-border);
  position: relative;
}
.solution-image img {
  width: 100%;
  height: 340px;
  object-fit: cover;
  transition: transform 0.8s ease;
}
.solution-image:hover img { transform: scale(1.02); }
.solution-content h2 {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 18px;
}
.solution-content > p {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 28px;
}
.solution-tags {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.tag-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  color: var(--text-primary);
  font-size: 14px;
  transition: var(--transition-base);
}
.tag-item i {
  color: var(--amber);
  font-size: 16px;
  flex-shrink: 0;
}
.tag-item:hover {
  border-color: rgba(232, 166, 58, 0.5);
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
}

/* ========== 成果 ========== */
.results {
  background: var(--bg-primary);
  position: relative;
}
.results::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(232, 166, 58, 0.3), transparent);
}
.results-grid {
  background: var(--bg-secondary);
  border: 1px solid rgba(232, 166, 58, 0.2);
  border-radius: 20px;
  padding: 40px;
  position: relative;
  overflow: hidden;
}
.results-grid::before {
  content: '';
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--amber), transparent);
}
.result-item {
  text-align: center;
  padding: 20px;
}
.result-item .num {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: 48px;
  font-weight: 700;
  color: var(--amber);
  line-height: 1.1;
  margin-bottom: 8px;
}
.result-item .num-suffix {
  font-size: 24px;
  font-weight: 500;
}
.result-item .desc {
  font-size: 14px;
  color: var(--text-secondary);
}

/* ========== 证言 ========== */
.testimonials {
  background: var(--bg-secondary);
}
.testimonial-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-card);
  padding: 30px 28px;
  position: relative;
  transition: var(--transition-base);
  height: 100%;
}
.testimonial-card:hover {
  border-color: rgba(232, 166, 58, 0.4);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}
.testimonial-card.wide {
  background: rgba(232, 166, 58, 0.03);
  border-color: rgba(232, 166, 58, 0.2);
}
.testimonial-card .quote-icon {
  font-size: 28px;
  color: var(--amber);
  opacity: 0.5;
  margin-bottom: 16px;
}
.testimonial-card .quote-text {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 20px;
}
.testimonial-author {
  display: flex;
  align-items: center;
  gap: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 16px;
}
.testimonial-author img {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--glass-border);
}
.testimonial-author .name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}
.testimonial-author .role {
  font-size: 13px;
  color: var(--text-muted);
}

/* ========== 资讯列表 ========== */
.news-section {
  background: var(--bg-primary);
}
.news-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-card);
  padding: 28px 26px;
  margin-bottom: 20px;
  transition: var(--transition-base);
  display: block;
  height: calc(100% - 20px);
  position: relative;
  overflow: hidden;
}
.news-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 3px;
  height: 0;
  background: linear-gradient(180deg, var(--amber), transparent);
  transition: height 0.4s ease;
}
.news-card:hover {
  border-color: rgba(232, 166, 58, 0.5);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  background: rgba(255, 255, 255, 0.06);
}
.news-card:hover::before { height: 100%; }
.news-card .badge {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(37, 99, 235, 0.12);
  color: var(--brand-blue-light);
  font-size: 12px;
  border-radius: var(--radius-badge);
  margin-bottom: 12px;
  transition: var(--transition-base);
}
.news-card:hover .badge {
  background: rgba(232, 166, 58, 0.15);
  color: var(--amber);
}
.news-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.5;
  margin-bottom: 10px;
  transition: var(--transition-base);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-card h3 a { color: inherit; }
.news-card h3 a:hover { color: var(--amber); }
.news-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-muted);
}
.news-meta .read-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-secondary);
  font-size: 13px;
  transition: var(--transition-base);
}
.news-meta .read-more:hover {
  color: var(--amber);
  gap: 10px;
}
.empty-state {
  text-align: center;
  padding: 60px 30px;
  background: var(--glass-bg);
  border: 1px dashed var(--glass-border);
  border-radius: var(--radius-card);
}
.empty-state i {
  font-size: 48px;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.empty-state p {
  color: var(--text-secondary);
  font-size: 15px;
  margin-bottom: 20px;
}

/* ========== FAQ ========== */
.faq-section {
  background: var(--bg-secondary);
}
.accordion-item {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-card);
  margin-bottom: 12px;
  overflow: hidden;
  transition: var(--transition-base);
}
.accordion-item:hover {
  border-color: rgba(232, 166, 58, 0.3);
}
.accordion-title {
  padding: 22px 26px;
  display: flex;
  align-items: center;
  gap: 16px;
  cursor: pointer;
  user-select: none;
  transition: var(--transition-base);
}
.accordion-title:hover .q-icon {
  background: var(--amber);
  color: #0C1320;
}
.q-icon {
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: rgba(232, 166, 58, 0.1);
  border: 1px solid rgba(232, 166, 58, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  color: var(--amber);
  flex-shrink: 0;
  transition: var(--transition-base);
}
.accordion-title span {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-primary);
  flex: 1;
  line-height: 1.5;
}
.accordion-title .arrow {
  font-size: 14px;
  color: var(--text-muted);
  transition: transform 0.3s ease;
}
.accordion-item.is-open .arrow { transform: rotate(180deg); color: var(--amber); }
.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}
.accordion-content-inner {
  padding: 0 26px 22px 74px;
  position: relative;
}
.accordion-content-inner::before {
  content: '';
  position: absolute;
  left: 38px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--amber), rgba(232, 166, 58, 0.1));
  border-radius: 2px;
}
.accordion-content-inner p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* ========== CTA ========== */
.cta-section {
  background: var(--bg-primary);
  position: relative;
}
.cta-card {
  background: linear-gradient(135deg, var(--bg-secondary) 0%, #0E1830 50%, #142040 100%);
  border: 1px solid rgba(232, 166, 58, 0.3);
  border-radius: 24px;
  padding: 56px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-card::before {
  content: '';
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--amber), transparent);
}
.cta-card::after {
  content: '';
  position: absolute;
  bottom: -20%; right: -10%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(232, 166, 58, 0.08), transparent 70%);
  border-radius: 50%;
}
.cta-card h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
  position: relative;
  z-index: 2;
}
.cta-card p {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 28px;
  position: relative;
  z-index: 2;
}
.cta-card .btn-primary {
  position: relative;
  z-index: 2;
  font-size: 16px;
  padding: 14px 36px;
}

/* ========== 页脚 ========== */
.site-footer {
  background: #05080F;
  border-top: 1px solid rgba(232, 166, 58, 0.15);
  padding: 60px 0 30px;
}
.footer-brand {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.footer-brand i { color: var(--amber); }
.footer-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 20px;
}
.footer-subscribe { margin-top: 20px; }
.footer-subscribe label {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 8px;
  display: block;
}
.subscribe-form {
  display: flex;
  gap: 8px;
  max-width: 360px;
}
.subscribe-form input {
  flex: 1;
  padding: 10px 14px;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-input);
  color: var(--text-primary);
  font-size: 14px;
  transition: var(--transition-base);
}
.subscribe-form input:focus {
  border-color: var(--amber);
  box-shadow: 0 0 0 3px rgba(232, 166, 58, 0.2);
  outline: none;
}
.subscribe-form .btn-sub {
  padding: 10px 20px;
  background: var(--amber);
  color: #0C1320;
  border-radius: var(--radius-input);
  font-size: 14px;
  font-weight: 700;
  transition: var(--transition-base);
  display: flex;
  align-items: center;
  gap: 6px;
}
.subscribe-form .btn-sub:hover {
  background: var(--amber-hover);
  transform: scale(1.03);
  box-shadow: var(--shadow-btn);
}
.form-message { font-size: 13px; margin-top: 6px; }
.form-message.error { color: var(--error); }
.form-message.success { color: var(--success); }
.footer-heading {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
}
.footer-links li { margin-bottom: 10px; }
.footer-links a {
  color: var(--text-secondary);
  font-size: 14px;
  transition: var(--transition-base);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.footer-links a:hover {
  color: var(--amber);
  padding-left: 6px;
}
.footer-links a i { font-size: 12px; color: var(--text-muted); }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  margin-top: 40px;
  padding-top: 24px;
  text-align: center;
}
.footer-bottom p {
  font-size: 13px;
  color: var(--text-muted);
}
.footer-bottom a {
  color: var(--text-secondary);
}
.footer-bottom a:hover { color: var(--amber); }

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .hero h1 { font-size: 38px; }
  .hero-content { max-width: 100%; }
  .solution-content h2 { font-size: 28px; }
  .section-header h2 { font-size: 30px; }
  .result-item .num { font-size: 38px; }
}

@media (max-width: 768px) {
  .section { padding: 72px 0; }
  .header-search { display: none; }
  .nav-hot { display: none; }
  .mobile-toggle { display: flex; }
  .header-top { height: 56px; }
  .header-nav .f-grid { justify-content: flex-end; }
  .nav-links { display: none; }
  .hero { padding: 70px 0 120px; }
  .hero h1 { font-size: 32px; }
  .hero-image { margin-top: 40px; }
  .hero-image img { height: 260px; }
  .solution-tags { grid-template-columns: 1fr; }
  .results-grid { padding: 30px 20px; }
  .cta-card { padding: 40px 24px; }
  .accordion-title { padding: 18px 20px; }
  .accordion-content-inner { padding: 0 20px 18px 60px; }
  .accordion-content-inner::before { left: 30px; }
  .section-header h2 { font-size: 26px; }
}

@media (max-width: 520px) {
  .section { padding: 48px 0; }
  .f-grid { padding: 0 16px; }
  .header-top { height: 52px; }
  .brand-logo { font-size: 15px; }
  .brand-logo i { font-size: 16px; }
  .hero { padding: 50px 0 100px; }
  .hero h1 { font-size: 27px; line-height: 1.3; }
  .hero-sub { font-size: 15px; }
  .hero-actions { flex-direction: column; align-items: stretch; gap: 12px; }
  .hero-actions .btn-primary, .hero-actions .btn-secondary { justify-content: center; }
  .trust-item .num { font-size: 28px; }
  .pain-left h2 { font-size: 26px; }
  .solution-content h2 { font-size: 24px; }
  .result-item .num { font-size: 32px; }
  .testimonial-card { padding: 22px 18px; }
  .news-card { padding: 20px 18px; }
  .news-meta { flex-direction: column; align-items: flex-start; gap: 8px; }
  .accordion-title span { font-size: 14px; }
  .accordion-content-inner p { font-size: 14px; }
  .cta-card { padding: 32px 18px; }
  .cta-card h2 { font-size: 24px; }
  .footer-bottom { font-size: 12px; }
  .subscribe-form { flex-direction: column; }
  .subscribe-form .btn-sub { justify-content: center; }
  .results-grid { padding: 24px 14px; }
}

/* 打印优化 */
@media print {
  .site-header, .site-footer, .hero-scroll, .mobile-toggle { display: none; }
  body { background: white; color: #333; }
}

/* roulang page: category1 */
:root {
      --page-bg: #070B13;
      --section-bg: #0C1320;
      --float-bg: #111C30;
      --glass-bg: rgba(255, 255, 255, 0.04);
      --glass-border: rgba(255, 255, 255, 0.12);
      --brand-blue: #2563EB;
      --blue-hover: #4F83FF;
      --amber: #E8A63A;
      --amber-hover: #F5BE50;
      --text-main: #E6ECF5;
      --text-sub: #9CA9BF;
      --text-weak: #5C6A82;
      --success: #34D399;
      --warning: #F59E0B;
      --error: #F87171;
      --radius-card: 16px;
      --radius-btn: 12px;
      --radius-badge: 999px;
      --shadow-card: 0 12px 32px rgba(0, 0, 0, 0.35);
      --shadow-card-hover: 0 18px 40px rgba(0, 0, 0, 0.45);
      --shadow-amber: 0 0 18px rgba(232, 166, 58, 0.35);
      --shadow-amber-hover: 0 0 28px rgba(245, 190, 80, 0.45);
      --font-sans: "PingFang SC", "HarmonicOS Sans SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      --font-num: "Inter", "Roboto", sans-serif;
      --spacer: 90px;
      --transition: all .3s cubic-bezier(.4, 0, .2, 1);
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: var(--font-sans);
      font-size: 16px;
      line-height: 1.75;
      color: var(--text-main);
      background: var(--page-bg);
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
      overflow-x: hidden;
    }

    body::before {
      content: "";
      position: fixed;
      inset: 0;
      background-image: linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
      background-size: 40px 40px;
      pointer-events: none;
      z-index: 0;
    }

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

    a {
      color: var(--brand-blue);
      text-decoration: none;
      border-bottom: 1px solid transparent;
      transition: var(--transition);
    }

    a:hover {
      color: var(--amber-hover);
      border-bottom-color: rgba(245, 190, 80, 0.4);
    }

    a:focus-visible,
    button:focus-visible,
    input:focus-visible {
      outline: 2px solid var(--amber);
      outline-offset: 2px;
      border-radius: 4px;
    }

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

    .grid-container {
      max-width: 1200px;
    }

    /* ========== Header / Navigation ========== */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 100;
      background: rgba(7, 11, 19, 0.85);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border-bottom: 1px solid rgba(232, 166, 58, 0.15);
      transition: var(--transition);
    }

    .site-header.scrolled {
      background: rgba(7, 11, 19, 0.92);
      box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
    }

    .top-bar-row {
      padding: 8px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
      transition: var(--transition);
    }

    .site-header.scrolled .top-bar-row {
      padding: 4px 0;
    }

    .brand-logo {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-main);
      letter-spacing: 1px;
      white-space: nowrap;
      display: flex;
      align-items: center;
      gap: 10px;
      border-bottom: none;
    }

    .brand-logo i {
      color: var(--amber);
      font-size: 22px;
      text-shadow: 0 0 16px rgba(232, 166, 58, 0.5);
    }

    .brand-logo:hover {
      color: var(--amber-hover);
      border-bottom: none;
    }

    .desktop-search {
      padding: 0 20px;
    }

    .search-box {
      display: flex;
      background: rgba(0, 0, 0, 0.3);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: 8px;
      overflow: hidden;
      transition: var(--transition);
      max-width: 480px;
      margin-left: auto;
    }

    .search-box:focus-within {
      border-color: var(--amber);
      box-shadow: 0 0 0 3px rgba(232, 166, 58, 0.15);
    }

    .search-box input {
      background: transparent;
      border: none;
      color: var(--text-main);
      font-size: 14px;
      padding: 9px 15px;
      width: 100%;
      outline: none;
      font-family: inherit;
    }

    .search-box input::placeholder {
      color: var(--text-weak);
    }

    .search-box button {
      background: transparent;
      color: var(--amber);
      padding: 0 15px;
      font-size: 14px;
      transition: var(--transition);
      border-left: 1px solid rgba(255, 255, 255, 0.08);
    }

    .search-box button:hover {
      background: rgba(232, 166, 58, 0.15);
    }

    .mobile-toggle {
      display: none;
      background: transparent;
      color: var(--text-main);
      font-size: 22px;
      padding: 6px 10px;
      border-radius: 8px;
      border: 1px solid rgba(255, 255, 255, 0.15);
    }

    .mobile-toggle:hover {
      color: var(--amber);
      border-color: var(--amber);
    }

    .nav-row {
      padding: 0;
      transition: var(--transition);
    }

    .nav-row .grid-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
    }

    .drawer-nav {
      display: flex;
      gap: 4px;
      padding: 8px 0;
      flex-wrap: wrap;
    }

    .drawer-nav a {
      color: var(--text-sub);
      font-size: 15px;
      padding: 8px 18px;
      border-radius: 8px;
      border-bottom: none;
      font-weight: 500;
      position: relative;
      white-space: nowrap;
    }

    .drawer-nav a:hover {
      color: var(--amber-hover);
      background: rgba(232, 166, 58, 0.08);
      border-bottom: none;
    }

    .drawer-nav a.active {
      color: var(--amber);
      background: rgba(232, 166, 58, 0.1);
      font-weight: 700;
    }

    .drawer-nav a.active::after {
      content: "";
      position: absolute;
      bottom: 2px;
      left: 18px;
      right: 18px;
      height: 2px;
      background: var(--amber);
      border-radius: 2px;
      box-shadow: 0 0 10px rgba(232, 166, 58, 0.6);
    }

    .hot-tags {
      display: flex;
      align-items: center;
      gap: 4px;
      font-size: 13px;
      color: var(--text-weak);
      white-space: nowrap;
      padding-right: 8px;
    }

    .hot-tags a {
      color: var(--text-weak);
      padding: 5px 12px;
      border-radius: 999px;
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 13px;
      border-bottom: none;
      transition: var(--transition);
    }

    .hot-tags a:hover {
      color: var(--amber);
      background: rgba(232, 166, 58, 0.1);
      border-color: rgba(232, 166, 58, 0.4);
      transform: translateY(-2px);
    }

    /* ========== Mobile drawer ========== */
    .mobile-drawer {
      display: none;
      background: var(--float-bg);
      border-top: 1px solid rgba(232, 166, 58, 0.2);
      padding: 20px 0;
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
    }

    .mobile-drawer.open {
      display: block;
    }

    .mobile-drawer .search-box {
      margin: 0 0 16px;
      max-width: 100%;
    }

    .mobile-drawer .drawer-nav {
      flex-direction: column;
      padding: 0;
    }

    .mobile-drawer .drawer-nav a {
      padding: 12px 16px;
      border-radius: 8px;
      font-size: 16px;
    }

    .mobile-drawer .drawer-nav a::after {
      display: none;
    }

    .mobile-drawer .hot-tags {
      flex-wrap: wrap;
      padding: 16px 0 0;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      margin-top: 16px;
    }

    /* ========== Breadcrumb ========== */
    .breadcrumb-bar {
      padding-top: 128px;
      background: transparent;
      position: relative;
      z-index: 1;
    }

    .breadcrumb {
      font-size: 14px;
      color: var(--text-weak);
      padding: 14px 0;
    }

    .breadcrumb a {
      color: var(--text-sub);
      border-bottom: none;
    }

    .breadcrumb a:hover {
      color: var(--amber);
    }

    .breadcrumb span {
      color: var(--text-weak);
    }

    /* ========== Category Hero ========== */
    .cat-hero {
      position: relative;
      background-size: cover;
      background-position: center;
      padding: 70px 0 60px;
      border-bottom: 1px solid rgba(232, 166, 58, 0.2);
    }

    .cat-hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(7, 11, 19, 0.82) 0%, rgba(7, 11, 19, 0.65) 50%, var(--page-bg) 100%);
    }

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

    .cat-hero h1 {
      font-size: 44px;
      font-weight: 700;
      line-height: 1.2;
      color: #fff;
      margin-bottom: 16px;
      text-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
    }

    .cat-hero-sub {
      font-size: 18px;
      color: var(--text-sub);
      max-width: 640px;
      margin-bottom: 28px;
      line-height: 1.7;
    }

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

    /* ========== Buttons ========== */
    .btn-primary {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 13px 32px;
      background: linear-gradient(135deg, var(--amber), #d6922e);
      color: #1a1206;
      font-weight: 700;
      font-size: 15px;
      border-radius: var(--radius-btn);
      box-shadow: var(--shadow-amber);
      border-bottom: none;
      transition: var(--transition);
    }

    .btn-primary:hover {
      background: linear-gradient(135deg, var(--amber-hover), var(--amber));
      color: #1a1206;
      box-shadow: var(--shadow-amber-hover);
      transform: translateY(-2px);
      border-bottom: none;
    }

    .btn-primary:active {
      transform: translateY(1px);
      box-shadow: none;
    }

    .btn-ghost {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 13px 32px;
      background: transparent;
      color: var(--text-main);
      font-weight: 500;
      font-size: 15px;
      border-radius: var(--radius-btn);
      border: 1px solid rgba(255, 255, 255, 0.35);
      border-bottom: 1px solid rgba(255, 255, 255, 0.35);
      transition: var(--transition);
    }

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

    .btn-ghost:active {
      transform: translateY(1px);
    }

    /* ========== Section base ========== */
    .section {
      padding: var(--spacer) 0;
      position: relative;
      z-index: 1;
    }

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

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

    .section-heading h2 {
      font-size: 32px;
      font-weight: 700;
      line-height: 1.3;
      margin-bottom: 12px;
      color: var(--text-main);
    }

    .section-heading p {
      color: var(--text-sub);
      font-size: 16px;
      max-width: 640px;
    }

    .section-heading .heading-mark {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 14px;
      color: var(--amber);
      margin-bottom: 10px;
      letter-spacing: 2px;
      text-transform: uppercase;
    }

    .section-heading .heading-mark::before {
      content: "";
      width: 28px;
      height: 2px;
      background: var(--amber);
      border-radius: 2px;
    }

    /* ========== Glass cards ========== */
    .glass-card {
      background: var(--glass-bg);
      border: 1px solid var(--glass-border);
      border-radius: var(--radius-card);
      padding: 28px;
      box-shadow: var(--shadow-card);
      position: relative;
      overflow: hidden;
      transition: var(--transition);
    }

    .glass-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 20px;
      right: 20px;
      height: 1px;
      background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.25), transparent);
    }

    .glass-card:hover {
      background: rgba(255, 255, 255, 0.06);
      border-color: rgba(232, 166, 58, 0.55);
      box-shadow: var(--shadow-card-hover);
      transform: translateY(-2px);
    }

    .glass-card .card-icon {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: rgba(37, 99, 235, 0.15);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      color: var(--brand-blue);
      margin-bottom: 16px;
      border: 1px solid rgba(37, 99, 235, 0.2);
    }

    .glass-card .card-icon.gold {
      background: rgba(232, 166, 58, 0.15);
      color: var(--amber);
      border-color: rgba(232, 166, 58, 0.25);
    }

    .glass-card h3 {
      font-size: 18px;
      font-weight: 600;
      margin-bottom: 10px;
      color: var(--text-main);
    }

    .glass-card p {
      font-size: 15px;
      color: var(--text-sub);
      margin-bottom: 0;
    }

    /* ========== Category layout ========== */
    .category-main {
      padding-top: 40px;
    }

    .category-article {
      background: var(--glass-bg);
      border: 1px solid var(--glass-border);
      border-radius: var(--radius-card);
      padding: 40px;
      box-shadow: var(--shadow-card);
      position: relative;
    }

    .category-article::before {
      content: "";
      position: absolute;
      top: 0;
      left: 24px;
      right: 24px;
      height: 1px;
      background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    }

    .category-article h2 {
      font-size: 26px;
      font-weight: 700;
      margin-bottom: 16px;
      color: var(--text-main);
    }

    .category-article p {
      font-size: 16px;
      line-height: 1.85;
      color: var(--text-sub);
      margin-bottom: 1.2em;
    }

    .category-article .intro-highlight {
      font-size: 17px;
      color: var(--text-main);
      background: rgba(232, 166, 58, 0.08);
      border-left: 3px solid var(--amber);
      padding: 16px 20px;
      border-radius: 0 8px 8px 0;
      margin-bottom: 24px;
    }

    /* ========== Image entry list ========== */
    .entry-list {
      display: flex;
      flex-direction: column;
      gap: 32px;
      margin-top: 32px;
    }

    .entry-item {
      display: grid;
      grid-template-columns: 200px 1fr;
      gap: 24px;
      align-items: center;
      background: var(--glass-bg);
      border: 1px solid var(--glass-border);
      border-radius: var(--radius-card);
      padding: 20px;
      transition: var(--transition);
    }

    .entry-item:hover {
      border-color: rgba(232, 166, 58, 0.45);
      background: rgba(255, 255, 255, 0.06);
      transform: translateX(4px);
      box-shadow: var(--shadow-card-hover);
    }

    .entry-item img {
      width: 100%;
      height: 130px;
      object-fit: cover;
      border-radius: 12px;
    }

    .entry-item h3 {
      font-size: 17px;
      font-weight: 600;
      margin-bottom: 8px;
      color: var(--text-main);
    }

    .entry-item p {
      font-size: 14px;
      color: var(--text-sub);
      margin-bottom: 8px;
      line-height: 1.7;
    }

    .entry-item .badge {
      display: inline-block;
      background: rgba(37, 99, 235, 0.12);
      color: var(--brand-blue);
      font-size: 12px;
      padding: 3px 12px;
      border-radius: 999px;
      margin-bottom: 8px;
      font-weight: 500;
    }

    .entry-item .badge.gold {
      background: rgba(232, 166, 58, 0.12);
      color: var(--amber);
    }

    .entry-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 14px;
      color: var(--brand-blue);
      border-bottom: none;
      font-weight: 500;
    }

    .entry-link:hover {
      color: var(--amber);
      border-bottom: none;
    }

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

    .entry-link:hover i {
      transform: translateX(4px);
    }

    /* ========== Sidebar ========== */
    .sidebar {
      position: sticky;
      top: 140px;
      display: flex;
      flex-direction: column;
      gap: 24px;
      padding-bottom: 40px;
    }

    .sidebar-card {
      background: var(--glass-bg);
      border: 1px solid var(--glass-border);
      border-radius: var(--radius-card);
      padding: 24px;
      box-shadow: var(--shadow-card);
      position: relative;
    }

    .sidebar-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 16px;
      right: 16px;
      height: 1px;
      background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    }

    .sidebar-card h3 {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 16px;
      color: var(--text-main);
      padding-bottom: 12px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .sidebar-nav {
      list-style: none;
    }

    .sidebar-nav li {
      margin-bottom: 4px;
    }

    .sidebar-nav a {
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 9px 12px;
      border-radius: 8px;
      color: var(--text-sub);
      font-size: 14px;
      border-bottom: none;
      transition: var(--transition);
    }

    .sidebar-nav a i {
      color: var(--brand-blue);
      font-size: 12px;
      transition: var(--transition);
    }

    .sidebar-nav a:hover {
      background: rgba(37, 99, 235, 0.1);
      color: var(--brand-blue);
      border-bottom: none;
      padding-left: 16px;
    }

    .sidebar-nav a:hover i {
      color: var(--amber);
    }

    .tag-list {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .tag-list a {
      font-size: 13px;
      color: var(--text-sub);
      padding: 6px 14px;
      border-radius: 999px;
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
      transition: var(--transition);
    }

    .tag-list a:hover {
      background: rgba(232, 166, 58, 0.12);
      border-color: rgba(232, 166, 58, 0.4);
      color: var(--amber);
      border-bottom-color: rgba(232, 166, 58, 0.4);
      transform: translateY(-2px);
    }

    .sidebar-image {
      border-radius: 12px;
      overflow: hidden;
      position: relative;
      height: 200px;
    }

    .sidebar-image img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .sidebar-image .img-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, transparent 40%, rgba(7, 11, 19, 0.9));
      display: flex;
      align-items: flex-end;
      padding: 16px;
      font-size: 14px;
      font-weight: 600;
      color: #fff;
    }

    .sidebar-faq {
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .sidebar-faq a {
      font-size: 14px;
      color: var(--text-sub);
      padding: 10px 12px;
      border-radius: 8px;
      background: rgba(255, 255, 255, 0.02);
      border-bottom: none;
      display: flex;
      gap: 8px;
      transition: var(--transition);
    }

    .sidebar-faq a i {
      color: var(--amber);
      font-size: 12px;
      margin-top: 4px;
    }

    .sidebar-faq a:hover {
      color: var(--amber);
      background: rgba(232, 166, 58, 0.08);
      padding-left: 16px;
      border-bottom: none;
    }

    /* ========== Timeline ========== */
    .timeline-wrap {
      margin-top: 40px;
      position: relative;
      padding-left: 32px;
    }

    .timeline-wrap::before {
      content: "";
      position: absolute;
      left: 8px;
      top: 0;
      bottom: 0;
      width: 2px;
      background: linear-gradient(180deg, var(--amber), rgba(232, 166, 58, 0.1));
      border-radius: 2px;
    }

    .timeline-item {
      position: relative;
      padding-bottom: 40px;
    }

    .timeline-item:last-child {
      padding-bottom: 0;
    }

    .timeline-item::before {
      content: "";
      position: absolute;
      left: -32px;
      top: 6px;
      width: 18px;
      height: 18px;
      border-radius: 50%;
      background: var(--page-bg);
      border: 3px solid var(--amber);
      box-shadow: 0 0 12px rgba(232, 166, 58, 0.4);
    }

    .timeline-item h3 {
      font-size: 18px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 8px;
    }

    .timeline-item p {
      font-size: 15px;
      color: var(--text-sub);
      line-height: 1.8;
    }

    .timeline-item .time-label {
      display: inline-block;
      font-size: 13px;
      color: var(--amber);
      background: rgba(232, 166, 58, 0.1);
      padding: 3px 12px;
      border-radius: 999px;
      margin-bottom: 8px;
      font-weight: 500;
    }

    /* ========== Experience blocks ========== */
    .experience-block {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
      margin-bottom: 56px;
    }

    .experience-block:last-child {
      margin-bottom: 0;
    }

    .experience-block .exp-media {
      border-radius: var(--radius-card);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      position: relative;
    }

    .experience-block .exp-media img {
      width: 100%;
      height: 300px;
      object-fit: cover;
      transition: transform .6s var(--transition);
    }

    .experience-block .exp-media:hover img {
      transform: scale(1.04);
    }

    .exp-media::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, transparent 60%, rgba(7, 11, 19, 0.3));
      pointer-events: none;
    }

    .experience-block .exp-content h3 {
      font-size: 22px;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text-main);
    }

    .experience-block .exp-content p {
      font-size: 15px;
      color: var(--text-sub);
      line-height: 1.8;
      margin-bottom: 16px;
    }

    .experience-block .exp-content .exp-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 8px;
    }

    .exp-tags span {
      font-size: 13px;
      color: var(--brand-blue);
      background: rgba(37, 99, 235, 0.1);
      padding: 4px 14px;
      border-radius: 999px;
      border: 1px solid rgba(37, 99, 235, 0.2);
    }

    .exp-tags span.gold {
      color: var(--amber);
      background: rgba(232, 166, 58, 0.08);
      border-color: rgba(232, 166, 58, 0.2);
    }

    .exp-reverse .exp-media {
      order: 2;
    }

    .exp-reverse .exp-content {
      order: 1;
    }

    /* ========== Feature strip ========== */
    .feature-strip {
      background: transparent;
      border: 1px solid rgba(232, 166, 58, 0.3);
      border-radius: var(--radius-card);
      padding: 24px 30px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 20px;
      flex-wrap: wrap;
      margin-top: 40px;
      background: rgba(232, 166, 58, 0.04);
    }

    .feature-strip .fs-text {
      display: flex;
      align-items: center;
      gap: 16px;
    }

    .feature-strip .fs-text i {
      font-size: 28px;
      color: var(--amber);
    }

    .feature-strip h3 {
      font-size: 18px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 4px;
    }

    .feature-strip p {
      font-size: 14px;
      color: var(--text-sub);
      margin-bottom: 0;
    }

    /* ========== FAQ ========== */
    .faq-area {
      background: var(--section-bg);
      position: relative;
      z-index: 1;
    }

    .faq-area .accordion {
      max-width: 860px;
      margin: 0 auto;
    }

    .faq-area .accordion-item {
      background: var(--glass-bg);
      border: 1px solid var(--glass-border);
      border-radius: var(--radius-card);
      margin-bottom: 16px;
      overflow: hidden;
      transition: var(--transition);
      box-shadow: var(--shadow-card);
    }

    .faq-area .accordion-item:hover {
      border-color: rgba(232, 166, 58, 0.3);
      transform: translateY(-2px);
    }

    .faq-area .accordion-title {
      display: flex;
      align-items: center;
      gap: 14px;
      padding: 20px 24px;
      font-size: 16px;
      font-weight: 600;
      color: var(--text-main);
      cursor: pointer;
      position: relative;
      background: transparent;
      border-bottom: none;
      transition: var(--transition);
    }

    .faq-area .accordion-title:hover {
      color: var(--amber);
    }

    .faq-area .accordion-title .q-mark {
      width: 28px;
      height: 28px;
      flex-shrink: 0;
      border-radius: 8px;
      background: rgba(232, 166, 58, 0.15);
      border: 1px solid rgba(232, 166, 58, 0.3);
      color: var(--amber);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 14px;
    }

    .faq-area .accordion-title .arrow {
      margin-left: auto;
      font-size: 14px;
      color: var(--text-weak);
      transition: transform .3s;
    }

    .faq-area .accordion-item.is-active .accordion-title .arrow {
      transform: rotate(180deg);
      color: var(--amber);
    }

    .faq-area .accordion-content {
      padding: 0 24px 22px 66px;
      font-size: 15px;
      color: var(--text-sub);
      line-height: 1.8;
      background: transparent;
      border-top: 1px solid rgba(255, 255, 255, 0.04);
      position: relative;
    }

    .faq-area .accordion-content::before {
      content: "";
      position: absolute;
      left: 36px;
      top: 0;
      bottom: 0;
      width: 2px;
      background: rgba(232, 166, 58, 0.6);
      border-radius: 2px;
    }

    /* ========== CTA ========== */
    .cta-area {
      padding: 60px 0;
      position: relative;
      z-index: 1;
    }

    .cta-card {
      background: linear-gradient(135deg, rgba(37, 99, 235, 0.12), rgba(232, 166, 58, 0.1));
      border: 1px solid rgba(232, 166, 58, 0.35);
      border-radius: 20px;
      padding: 50px 60px;
      text-align: center;
      position: relative;
      overflow: hidden;
    }

    .cta-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 50%;
      transform: translateX(-50%);
      width: 300px;
      height: 1px;
      background: linear-gradient(90deg, transparent, var(--amber), transparent);
    }

    .cta-card h2 {
      font-size: 28px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .cta-card p {
      font-size: 16px;
      color: var(--text-sub);
      margin-bottom: 28px;
    }

    .cta-card .btn-primary {
      font-size: 16px;
      padding: 15px 40px;
    }

    /* ========== Footer ========== */
    .site-footer {
      background: #05080F;
      border-top: 1px solid rgba(232, 166, 58, 0.2);
      padding: 60px 0 0;
      position: relative;
      z-index: 1;
    }

    .site-footer .grid-container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }

    .footer-brand {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 12px;
    }

    .footer-brand i {
      color: var(--amber);
      font-size: 22px;
    }

    .footer-desc {
      font-size: 14px;
      color: var(--text-weak);
      line-height: 1.8;
      margin-bottom: 20px;
    }

    .footer-subscribe label {
      display: block;
      font-size: 14px;
      color: var(--text-sub);
      margin-bottom: 10px;
      font-weight: 500;
    }

    .subscribe-form {
      display: flex;
      gap: 8px;
      max-width: 400px;
    }

    .subscribe-form input {
      flex: 1;
      background: rgba(0, 0, 0, 0.3);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: 8px;
      color: var(--text-main);
      font-size: 14px;
      padding: 10px 14px;
      outline: none;
      font-family: inherit;
      transition: var(--transition);
    }

    .subscribe-form input:focus {
      border-color: var(--amber);
      box-shadow: 0 0 0 3px rgba(232, 166, 58, 0.15);
    }

    .subscribe-form input::placeholder {
      color: var(--text-weak);
    }

    .btn-sub {
      background: linear-gradient(135deg, var(--amber), #d6922e);
      color: #1a1206;
      font-weight: 700;
      font-size: 14px;
      padding: 10px 20px;
      border-radius: 8px;
      white-space: nowrap;
      transition: var(--transition);
      box-shadow: var(--shadow-amber);
    }

    .btn-sub:hover {
      background: linear-gradient(135deg, var(--amber-hover), var(--amber));
      box-shadow: var(--shadow-amber-hover);
      transform: translateY(-2px);
    }

    .btn-sub:active {
      transform: translateY(1px);
      box-shadow: none;
    }

    .form-message {
      font-size: 13px;
      margin-top: 8px;
      color: var(--success);
      display: none;
    }

    .form-message.error {
      color: var(--error);
    }

    .footer-heading {
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 16px;
    }

    .footer-links {
      list-style: none;
      margin: 0;
    }

    .footer-links li {
      margin-bottom: 8px;
    }

    .footer-links a {
      font-size: 14px;
      color: var(--text-sub);
      border-bottom: none;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      transition: var(--transition);
    }

    .footer-links a i {
      font-size: 12px;
      color: var(--amber);
      transition: var(--transition);
    }

    .footer-links a:hover {
      color: var(--amber);
      padding-left: 6px;
      border-bottom: none;
    }

    .footer-bottom {
      margin-top: 48px;
      padding: 20px 0;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      text-align: center;
    }

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

    .footer-bottom a {
      color: var(--text-weak);
      border-bottom: none;
    }

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

    /* ========== CSS empty state ========== */
    .empty-state {
      text-align: center;
      padding: 60px 20px;
      background: var(--glass-bg);
      border: 1px dashed rgba(255, 255, 255, 0.2);
      border-radius: var(--radius-card);
    }

    .empty-state i {
      font-size: 48px;
      color: var(--text-weak);
      margin-bottom: 16px;
    }

    .empty-state p {
      font-size: 16px;
      color: var(--text-sub);
      margin-bottom: 20px;
    }

    /* ========== Responsive ========== */
    @media (max-width: 1024px) {
      :root {
        --spacer: 72px;
      }

      .breadcrumb-bar {
        padding-top: 115px;
      }

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

      .entry-item {
        grid-template-columns: 160px 1fr;
      }

      .experience-block {
        gap: 24px;
      }

      .experience-block .exp-media img {
        height: 250px;
      }

      .sidebar {
        position: static;
      }
    }

    @media (max-width: 768px) {
      :root {
        --spacer: 48px;
      }

      .top-bar-row {
        padding: 8px 0;
      }

      .desktop-search {
        display: none;
      }

      .mobile-toggle {
        display: inline-flex;
        align-items: center;
        justify-content: center;
      }

      .nav-row .desktop-nav {
        display: none;
      }

      .nav-row .hot-tags {
        display: none;
      }

      .drawer-nav {
        display: none;
      }

      .breadcrumb-bar {
        padding-top: 100px;
      }

      .cat-hero {
        padding: 40px 0 40px;
      }

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

      .cat-hero-sub {
        font-size: 16px;
      }

      .category-article {
        padding: 24px;
      }

      .entry-item {
        grid-template-columns: 1fr;
        gap: 14px;
      }

      .entry-item img {
        height: 180px;
      }

      .experience-block {
        grid-template-columns: 1fr;
        gap: 20px;
        margin-bottom: 40px;
      }

      .exp-reverse .exp-media {
        order: 1;
      }

      .exp-reverse .exp-content {
        order: 2;
      }

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

      .sidebar {
        margin-top: 24px;
      }

      .cta-card {
        padding: 36px 24px;
      }

      .cta-card h2 {
        font-size: 24px;
      }

      .faq-area .accordion-content {
        padding-left: 20px;
      }

      .faq-area .accordion-content::before {
        left: 14px;
      }

      .subscribe-form {
        flex-direction: column;
      }

      .btn-sub {
        width: 100%;
      }
    }

    @media (max-width: 520px) {
      body {
        font-size: 15px;
      }

      .brand-logo {
        font-size: 16px;
      }

      .brand-logo i {
        font-size: 18px;
      }

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

      .cat-hero-sub {
        font-size: 15px;
      }

      .cat-hero-actions .btn-primary,
      .cat-hero-actions .btn-ghost {
        width: 100%;
        justify-content: center;
      }

      .section-heading h2 {
        font-size: 24px;
      }

      .category-article {
        padding: 20px;
      }

      .category-article h2 {
        font-size: 22px;
      }

      .feature-strip {
        padding: 20px;
        flex-direction: column;
        align-items: flex-start;
      }

      .timeline-wrap {
        padding-left: 24px;
      }

      .timeline-item::before {
        left: -26px;
        width: 14px;
        height: 14px;
      }

      .faq-area .accordion-title {
        padding: 16px;
        font-size: 15px;
        gap: 10px;
      }

      .faq-area .accordion-title .q-mark {
        width: 24px;
        height: 24px;
        font-size: 12px;
      }

      .faq-area .accordion-content {
        padding: 0 16px 18px 20px;
      }

      .cta-card {
        padding: 28px 20px;
      }
    }

/* roulang page: article */
/* ============ 设计变量 ============ */
        :root {
            --bg: #070B13;
            --bg-section: #0C1320;
            --bg-float: #111C30;
            --glass-bg: rgba(255, 255, 255, 0.04);
            --glass-border: rgba(255, 255, 255, 0.12);
            --brand-blue: #2563EB;
            --brand-blue-light: #4F83FF;
            --amber: #E8A63A;
            --amber-hover: #F5BE50;
            --text: #E6ECF5;
            --text-secondary: #9CA9BF;
            --text-weak: #5C6A82;
            --success: #34D399;
            --warn: #F59E0B;
            --danger: #F87171;
            --radius-card: 16px;
            --radius-btn: 12px;
            --radius-tag: 999px;
            --radius-input: 8px;
            --shadow-card: 0 12px 32px rgba(0, 0, 0, 0.35);
            --shadow-card-hover: 0 18px 40px rgba(0, 0, 0, 0.45);
            --font-cn: "PingFang SC", "HarmonicOS Sans SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-num: "Inter", "Roboto", sans-serif;
            --transition: all 0.3s ease;
        }

        /* ============ Reset / Base ============ */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-cn);
            background: var(--bg);
            color: var(--text);
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        a {
            color: var(--brand-blue);
            text-decoration: none;
            border-bottom: 1px solid transparent;
            transition: color 0.3s, border-color 0.3s;
        }
        a:hover {
            color: var(--amber);
            border-bottom-color: var(--amber);
        }
        ul,
        ol {
            list-style-position: inside;
        }

        /* ============ 容器 ============ */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .container-sm {
            max-width: 880px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ============ 标题层级 ============ */
        h1,
        h2,
        h3,
        h4 {
            font-family: var(--font-cn);
            color: var(--text);
            line-height: 1.35;
        }
        h1 {
            font-size: clamp(30px, 4vw, 40px);
            font-weight: 700;
            line-height: 1.2;
        }
        h2 {
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 700;
            letter-spacing: -0.01em;
        }
        h3 {
            font-size: clamp(18px, 2vw, 21px);
            font-weight: 600;
        }

        /* ============ 顶部导航 ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(7, 11, 19, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(232, 166, 58, 0.15);
            transition: background 0.3s, border-color 0.3s, box-shadow 0.3s;
        }
        .site-header.scrolled {
            background: rgba(7, 11, 19, 0.96);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
        }
        .site-header.scrolled .header-top {
            height: 32px;
            border-bottom-color: transparent;
        }
        .site-header.scrolled .header-nav-inner {
            height: 32px;
        }
        .site-header.scrolled .header-tags {
            opacity: 0;
            pointer-events: none;
        }
        .header-top {
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            transition: height 0.3s, border-color 0.3s;
        }
        .header-top-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 42px;
            gap: 20px;
        }
        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            white-space: nowrap;
            border: none;
        }
        .brand i {
            color: var(--amber);
            font-size: 21px;
            transition: transform 0.4s ease;
        }
        .brand:hover {
            color: var(--amber);
        }
        .brand:hover i {
            transform: rotate(-15deg);
        }
        .header-search {
            flex-shrink: 1;
            min-width: 240px;
            max-width: 320px;
        }
        .header-search form {
            display: flex;
            align-items: center;
        }
        .header-search input {
            width: 100%;
            padding: 7px 16px;
            border-radius: 999px 0 0 999px;
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-right: none;
            background: rgba(255, 255, 255, 0.05);
            color: var(--text);
            font-size: 13px;
            transition: all 0.3s;
        }
        .header-search input:focus {
            outline: none;
            border-color: var(--amber);
            background: rgba(255, 255, 255, 0.08);
            box-shadow: 0 0 0 3px rgba(232, 166, 58, 0.12);
        }
        .header-search button {
            padding: 7px 16px;
            border-radius: 0 999px 999px 0;
            border: 1px solid var(--amber);
            background: var(--amber);
            color: #0A0E16;
            cursor: pointer;
            transition: all 0.3s;
            font-size: 14px;
        }
        .header-search button:hover {
            background: var(--amber-hover);
            border-color: var(--amber-hover);
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 6px;
        }
        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: all 0.3s ease;
        }
        .nav-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .header-nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 50px;
            gap: 16px;
            transition: height 0.3s;
        }
        .drawer-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .drawer-nav a {
            padding: 6px 18px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            border: none;
            transition: all 0.3s;
        }
        .drawer-nav a:hover {
            color: var(--amber);
            background: rgba(232, 166, 58, 0.08);
        }
        .drawer-nav a.active {
            color: var(--amber);
            background: rgba(232, 166, 58, 0.12);
            font-weight: 700;
            box-shadow: inset 0 0 0 1px rgba(232, 166, 58, 0.25);
        }
        .header-tags {
            display: flex;
            align-items: center;
            gap: 6px;
            transition: opacity 0.3s;
        }
        .trend-label {
            font-size: 12px;
            color: var(--text-weak);
            margin-right: 4px;
        }
        .header-tags a {
            font-size: 13px;
            color: var(--text-secondary);
            padding: 4px 14px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: all 0.3s;
            line-height: 1.4;
        }
        .header-tags a:hover {
            color: var(--amber);
            border-color: var(--amber);
            background: rgba(232, 166, 58, 0.06);
        }
        .mobile-search {
            display: none;
        }

        /* ============ 面包屑 ============ */
        .breadcrumb-wrapper {
            padding: 22px 0 0;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            font-size: 14px;
            color: var(--text-weak);
        }
        .breadcrumb a {
            color: var(--text-secondary);
            border: none;
            transition: color 0.3s;
        }
        .breadcrumb a:hover {
            color: var(--amber);
        }
        .breadcrumb .sep {
            margin: 0 10px;
            opacity: 0.4;
            color: var(--text-weak);
        }
        .breadcrumb .current {
            color: var(--text-weak);
            max-width: 240px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        /* ============ 文章主体 ============ */
        .article-main {
            padding: 32px 0 80px;
        }
        .article-card {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            position: relative;
        }
        .article-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.25), transparent);
        }
        .article-head {
            padding: 44px 48px 0;
        }
        .article-title {
            margin-bottom: 18px;
            letter-spacing: -0.02em;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 22px;
            font-size: 14px;
            color: var(--text-weak);
            padding-bottom: 24px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            margin-bottom: 28px;
        }
        .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 7px;
        }
        .article-meta i {
            color: var(--amber);
            font-size: 14px;
        }
        .article-cover {
            margin: 0 48px 32px;
            border-radius: 14px;
            overflow: hidden;
            position: relative;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
        }
        .article-cover img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
        }
        .article-cover::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(7, 11, 19, 0) 55%, rgba(7, 11, 19, 0.35) 100%);
            border-radius: 14px;
            pointer-events: none;
        }

        /* ============ 正文排版 ============ */
        .article-content {
            max-width: 760px;
            margin: 0 auto;
            padding: 0 48px 44px;
            font-size: 17px;
            line-height: 1.85;
            color: var(--text);
            font-variant-numeric: tabular-nums;
        }
        .article-content h2 {
            margin: 1.6em 0 0.6em;
            padding-left: 14px;
            border-left: 3px solid var(--amber);
            border-radius: 0 4px 4px 0;
        }
        .article-content h3 {
            margin: 1.4em 0 0.5em;
            color: var(--text);
        }
        .article-content p {
            margin-bottom: 1.4em;
        }
        .article-content ul,
        .article-content ol {
            margin-bottom: 1.4em;
            padding-left: 1.4em;
        }
        .article-content li {
            margin-bottom: 0.5em;
        }
        .article-content li::marker {
            color: var(--amber);
        }
        .article-content blockquote {
            margin: 1.6em 0;
            padding: 14px 24px;
            border-left: 3px solid var(--amber);
            background: rgba(232, 166, 58, 0.07);
            border-radius: 0 12px 12px 0;
            color: var(--text-secondary);
            font-style: normal;
        }
        .article-content blockquote p:last-child {
            margin-bottom: 0;
        }
        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.6em 0;
            font-weight: 500;
        }
        .article-content th,
        .article-content td {
            padding: 11px 16px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            text-align: left;
        }
        .article-content th {
            background: rgba(37, 99, 235, 0.14);
            color: var(--text);
            font-weight: 600;
            letter-spacing: 0.02em;
        }
        .article-content tr:nth-child(even) td {
            background: rgba(255, 255, 255, 0.025);
        }
        .article-content img {
            border-radius: 14px;
            margin: 1.2em 0;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
        }
        .article-content figure {
            margin: 1.6em 0;
        }
        .article-content figcaption {
            font-size: 13px;
            color: var(--text-weak);
            text-align: center;
            margin-top: 10px;
        }
        .article-content a {
            color: var(--brand-blue);
            border-bottom: 1px solid rgba(37, 99, 235, 0.35);
            transition: color 0.3s, border-color 0.3s;
        }
        .article-content a:hover {
            color: var(--amber);
            border-bottom-color: var(--amber);
        }
        .article-content strong {
            color: var(--text);
            font-weight: 700;
        }
        .article-content code {
            padding: 2px 8px;
            border-radius: 6px;
            background: rgba(255, 255, 255, 0.08);
            color: var(--amber);
            font-size: 0.9em;
        }
        .article-content pre {
            margin: 1.6em 0;
            padding: 20px;
            border-radius: 12px;
            background: #0A0E16;
            border: 1px solid rgba(255, 255, 255, 0.1);
            overflow-x: auto;
        }
        .article-content pre code {
            background: none;
            color: var(--text-secondary);
            padding: 0;
        }

        /* ============ 文章底部 ============ */
        .article-foot {
            max-width: 760px;
            margin: 0 auto;
            padding: 0 48px 48px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            padding-top: 28px;
            margin-bottom: 20px;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            border-radius: var(--radius-tag);
            background: rgba(37, 99, 235, 0.12);
            color: var(--brand-blue-light);
            font-size: 13px;
            font-weight: 500;
            border: 1px solid rgba(37, 99, 235, 0.18);
            transition: all 0.3s;
        }
        .badge i {
            font-size: 12px;
        }
        .badge:hover {
            background: rgba(232, 166, 58, 0.12);
            color: var(--amber);
            border-color: rgba(232, 166, 58, 0.3);
        }
        .article-copyright {
            font-size: 13px;
            color: var(--text-weak);
            line-height: 1.7;
            background: rgba(255, 255, 255, 0.02);
            border-radius: 8px;
            padding: 12px 16px;
        }
        .article-back {
            margin-top: 20px;
        }

        /* ============ 按钮 ============ */
        .btn-primary,
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 15px;
            cursor: pointer;
            border: none;
            transition: all 0.3s ease;
            line-height: 1.5;
        }
        .btn-primary {
            background: linear-gradient(135deg, #E8A63A, #D68A1E);
            color: #0A0E16;
            box-shadow: 0 0 18px rgba(232, 166, 58, 0.35);
        }
        .btn-primary:hover {
            background: linear-gradient(135deg, #F5BE50, #E8A63A);
            color: #0A0E16;
            box-shadow: 0 0 28px rgba(245, 190, 80, 0.45);
            transform: translateY(-2px);
        }
        .btn-primary:active {
            transform: translateY(0) scale(0.98);
            box-shadow: 0 0 12px rgba(232, 166, 58, 0.3);
        }
        .btn-secondary {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: var(--text);
            box-shadow: none;
        }
        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.06);
            border-color: var(--amber);
            color: var(--amber);
            transform: translateY(-2px);
        }
        .btn-secondary:active {
            transform: translateY(0);
        }
        .btn-disabled {
            opacity: 0.5;
            pointer-events: none;
        }

        /* ============ 相关推荐 ============ */
        .related-section {
            margin-top: 44px;
        }
        .related-title {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 22px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .related-title::before {
            content: '';
            width: 4px;
            height: 20px;
            background: var(--amber);
            border-radius: 2px;
            flex-shrink: 0;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        #cms-related-list > a,
        #cms-related-list > article,
        #cms-related-list > div {
            display: block;
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-card);
            padding: 24px;
            transition: all 0.4s ease;
            box-shadow: var(--shadow-card);
            color: var(--text);
        }
        #cms-related-list > a:hover,
        #cms-related-list > article:hover,
        #cms-related-list > div:hover {
            transform: translateY(-4px);
            border-color: var(--amber);
            box-shadow: var(--shadow-card-hover);
        }
        #cms-related-list h3,
        #cms-related-list h4 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text);
            transition: color 0.3s;
        }
        #cms-related-list a:hover h3,
        #cms-related-list a:hover h4 {
            color: var(--amber);
        }
        #cms-related-list p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.65;
            margin-bottom: 0;
        }

        /* ============ 空状态 ============ */
        .empty-page {
            text-align: center;
            padding: 90px 24px;
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            backdrop-filter: blur(10px);
        }
        .empty-page-icon {
            width: 96px;
            height: 96px;
            margin: 0 auto 26px;
            border-radius: 50%;
            background: rgba(232, 166, 58, 0.12);
            color: var(--amber);
            font-size: 42px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 0 30px rgba(232, 166, 58, 0.1);
        }
        .empty-page-title {
            font-size: 30px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text);
        }
        .empty-page p {
            color: var(--text-secondary);
            margin-bottom: 28px;
            font-size: 15px;
        }

        /* ============ FAQ 组件（预留） ============ */
        .faq-section {
            margin: 64px 0;
        }
        .accordion-item {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-card);
            margin-bottom: 16px;
            transition: all 0.3s;
        }
        .accordion-item:hover {
            border-color: rgba(232, 166, 58, 0.4);
        }
        .faq-q {
            padding: 20px 24px;
            font-weight: 600;
            font-size: 16px;
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 14px;
            cursor: pointer;
            background: none;
            border: none;
            text-align: left;
            width: 100%;
        }
        .faq-q .q-icon {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: rgba(232, 166, 58, 0.15);
            color: var(--amber);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            flex-shrink: 0;
        }
        .faq-arrow {
            margin-left: auto;
            color: var(--text-weak);
            transition: transform 0.3s;
        }
        .accordion-item.is-active .faq-arrow {
            transform: rotate(180deg);
            color: var(--amber);
        }
        .accordion-content {
            padding: 0 24px 20px 70px;
            border-left: 2px solid var(--amber);
            margin-left: 32px;
            color: var(--text-secondary);
            font-size: 15px;
        }

        /* ============ CTA 组件（预留） ============ */
        .cta-section {
            margin: 64px 0;
        }
        .cta-card {
            background: linear-gradient(135deg, rgba(17, 28, 48, 0.9), rgba(7, 11, 19, 0.9));
            border: 1px solid rgba(232, 166, 58, 0.35);
            border-radius: 24px;
            padding: 48px 40px;
            text-align: center;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
        }
        .cta-card h2 {
            margin-bottom: 12px;
        }
        .cta-card p {
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0 auto 28px;
        }

        /* ============ 页脚 ============ */
        .site-footer {
            background: #05080F;
            border-top: 1px solid rgba(232, 166, 58, 0.18);
            padding: 64px 0 0;
            margin-top: auto;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 16px;
        }
        .footer-brand i {
            color: var(--amber);
            font-size: 24px;
        }
        .footer-desc {
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.8;
            margin-bottom: 22px;
            max-width: 440px;
        }
        .footer-subscribe {
            margin-top: 8px;
        }
        .footer-subscribe label {
            display: block;
            font-size: 14px;
            color: var(--text);
            font-weight: 500;
            margin-bottom: 8px;
        }
        .subscribe-form {
            display: flex;
            gap: 10px;
            max-width: 420px;
        }
        .subscribe-form input {
            flex: 1;
            min-width: 0;
            padding: 11px 16px;
            border-radius: var(--radius-input);
            border: 1px solid rgba(255, 255, 255, 0.15);
            background: rgba(0, 0, 0, 0.3);
            color: var(--text);
            font-size: 14px;
            transition: all 0.3s;
        }
        .subscribe-form input::placeholder {
            color: var(--text-weak);
        }
        .subscribe-form input:focus {
            outline: none;
            border-color: var(--amber);
            box-shadow: 0 0 0 3px rgba(232, 166, 58, 0.15);
            background: rgba(0, 0, 0, 0.45);
        }
        .btn-sub {
            padding: 11px 22px;
            border-radius: var(--radius-input);
            border: none;
            background: var(--amber);
            color: #0A0E16;
            font-weight: 600;
            font-size: 14px;
            cursor: pointer;
            transition: all 0.3s;
            white-space: nowrap;
        }
        .btn-sub:hover {
            background: var(--amber-hover);
            box-shadow: 0 0 16px rgba(232, 166, 58, 0.3);
        }
        .form-message {
            font-size: 13px;
            margin-top: 8px;
            display: none;
        }
        .form-message.error {
            color: var(--danger);
            display: block;
        }
        .form-message.success {
            color: var(--success);
            display: block;
        }
        .footer-heading {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 16px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
        }
        .footer-links li {
            margin-bottom: 9px;
        }
        .footer-links a {
            color: var(--text-secondary);
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: none;
            transition: all 0.3s;
        }
        .footer-links a i {
            color: var(--text-weak);
            font-size: 12px;
            transition: transform 0.3s, color 0.3s;
        }
        .footer-links a:hover {
            color: var(--amber);
        }
        .footer-links a:hover i {
            transform: translateX(4px);
            color: var(--amber);
        }
        .footer-bottom {
            margin-top: 48px;
            padding: 22px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            text-align: center;
            font-size: 13px;
            color: var(--text-weak);
        }
        .footer-bottom a {
            color: var(--text-secondary);
            border: none;
            transition: color 0.3s;
        }
        .footer-bottom a:hover {
            color: var(--amber);
        }

        /* ============ 响应式断点 ============ */
        @media (max-width: 1024px) {
            .article-head {
                padding: 36px 36px 0;
            }
            .article-cover {
                margin: 0 36px 28px;
            }
            .article-content {
                padding: 0 36px 36px;
            }
            .article-foot {
                padding: 0 36px 36px;
            }
            .header-tags a:nth-child(3),
            .header-tags a:nth-child(4) {
                display: none;
            }
        }
        @media (max-width: 768px) {
            .header-search {
                display: none;
            }
            .header-search.desktop-only {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .header-nav {
                position: fixed;
                top: 42px;
                left: 0;
                right: 0;
                background: rgba(7, 11, 19, 0.98);
                border-bottom: 1px solid rgba(232, 166, 58, 0.15);
                box-shadow: 0 18px 40px rgba(0, 0, 0, 0.5);
                transform: translateY(-120%);
                transition: transform 0.35s ease;
                visibility: hidden;
                z-index: 999;
            }
            .header-nav.open {
                transform: translateY(0);
                visibility: visible;
            }
            .header-nav-inner {
                flex-direction: column;
                align-items: stretch;
                height: auto;
                padding: 20px 0;
                gap: 20px;
            }
            .drawer-nav {
                flex-direction: column;
                align-items: stretch;
                gap: 6px;
            }
            .drawer-nav a {
                display: block;
                width: 100%;
                padding: 12px 20px;
            }
            .header-tags {
                display: flex;
                flex-wrap: wrap;
                gap: 8px;
                padding: 0 20px;
            }
            .mobile-search {
                display: block;
                padding: 0 20px;
            }
            .mobile-search form {
                display: flex;
            }
            .mobile-search input {
                flex: 1;
                padding: 10px 16px;
                border-radius: var(--radius-input) 0 0 var(--radius-input);
                border: 1px solid rgba(255, 255, 255, 0.15);
                background: rgba(0, 0, 0, 0.3);
                color: var(--text);
                font-size: 14px;
            }
            .mobile-search input:focus {
                outline: none;
                border-color: var(--amber);
            }
            .mobile-search button {
                padding: 10px 18px;
                border-radius: 0 var(--radius-input) var(--radius-input) 0;
                border: 1px solid var(--amber);
                background: var(--amber);
                color: #0A0E16;
                cursor: pointer;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .article-title {
                font-size: 28px;
            }
            .article-head {
                padding: 28px 20px 0;
            }
            .article-cover {
                margin: 0 20px 24px;
            }
            .article-content {
                padding: 0 20px 32px;
                font-size: 16px;
                line-height: 1.8;
            }
            .article-foot {
                padding: 0 20px 32px;
            }
            .footer-bottom {
                font-size: 12px;
                padding: 18px 12px;
            }
            .cta-card {
                padding: 36px 20px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .breadcrumb-wrapper {
                padding-top: 16px;
            }
            .breadcrumb {
                font-size: 13px;
            }
            .breadcrumb .sep {
                margin: 0 6px;
            }
            .article-main {
                padding: 20px 0 60px;
            }
            .article-title {
                font-size: 24px;
                line-height: 1.3;
            }
            .article-meta {
                gap: 14px;
                font-size: 13px;
            }
            .article-head {
                padding: 22px 16px 0;
            }
            .article-cover {
                margin: 0 16px 20px;
                border-radius: 10px;
            }
            .article-content {
                padding: 0 16px 26px;
                font-size: 15.5px;
            }
            .article-content h2 {
                font-size: 21px;
            }
            .article-content h3 {
                font-size: 18px;
            }
            .article-foot {
                padding: 0 16px 28px;
            }
            .subscribe-form {
                flex-direction: column;
            }
            .subscribe-form button {
                width: 100%;
            }
            .footer-bottom {
                font-size: 12px;
                line-height: 1.6;
            }
            .btn-primary,
            .btn-secondary {
                width: 100%;
                justify-content: center;
            }
        }