/* roulang page: index */
/* ===== 设计变量 ===== */
:root {
  --color-primary: #7c5cfc;
  --color-primary-light: #9d83ff;
  --color-primary-dark: #5b3fd4;
  --color-accent: #00e5a0;
  --color-accent-glow: rgba(0, 229, 160, 0.55);
  --color-accent2: #ffb86b;
  --color-bg: #080c14;
  --color-bg-alt: #0d1320;
  --color-card: #141b2b;
  --color-card-hover: #1b2438;
  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-light: rgba(255, 255, 255, 0.14);
  --color-text: #e8ecf3;
  --color-text-muted: #94a3b8;
  --color-text-dim: #64748b;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 20px 55px rgba(0, 0, 0, 0.5);
  --transition: all 0.3s ease;
  --container: 1200px;
  --header-h: 72px;
}

/* ===== Reset / 基础 ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, textarea { font-family: inherit; }

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

section { position: relative; }

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 32px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.3px;
  transition: var(--transition);
  white-space: nowrap;
  line-height: 1.4;
  border: 1px solid transparent;
}
.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 4px 20px rgba(124, 92, 252, 0.35);
}
.btn-primary:hover {
  background: var(--color-primary-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(124, 92, 252, 0.5);
}
.btn-primary:active { transform: translateY(0); box-shadow: 0 2px 12px rgba(124, 92, 252, 0.3); }
.btn-primary:focus-visible { outline: 3px solid rgba(124, 92, 252, 0.55); outline-offset: 2px; }

.btn-outline {
  border-color: var(--color-border-light);
  color: var(--color-text);
  background: rgba(255, 255, 255, 0.03);
}
.btn-outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: rgba(0, 229, 160, 0.08);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 229, 160, 0.15);
}
.btn-outline:active { transform: translateY(0); }
.btn-outline:focus-visible { outline: 3px solid rgba(0, 229, 160, 0.4); outline-offset: 2px; }

.btn-accent {
  background: var(--color-accent);
  color: #08141c;
  box-shadow: 0 4px 20px rgba(0, 229, 160, 0.3);
}
.btn-accent:hover {
  background: #2df0b0;
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 229, 160, 0.45);
}

/* ===== Header / 导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(8, 12, 20, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(124, 92, 252, 0.25);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
}
.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  gap: 20px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 0.5px;
  color: #fff;
  flex-shrink: 0;
}
.brand i {
  color: var(--color-primary);
  font-size: 24px;
  filter: drop-shadow(0 0 8px rgba(124, 92, 252, 0.6));
}
.brand .brand-txt {
  background: linear-gradient(90deg, #fff 20%, var(--color-primary-light) 60%, var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 0 auto;
}
.main-nav a {
  position: relative;
  padding: 10px 18px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: var(--transition);
}
.main-nav a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
}
.main-nav a.active {
  color: var(--color-accent);
  text-shadow: 0 0 14px rgba(0, 229, 160, 0.45);
  background: rgba(0, 229, 160, 0.06);
}
.main-nav a.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 22px;
  height: 2px;
  border-radius: 2px;
  background: var(--color-accent);
  box-shadow: 0 0 10px var(--color-accent-glow);
}
.nav-cta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.nav-cta .btn {
  padding: 9px 24px;
  font-size: 14px;
}
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  padding: 8px;
  border-radius: 8px;
}
.menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: var(--transition);
}
.menu-toggle:hover span { background: var(--color-accent); }

/* ===== Hero 首屏 ===== */
.hero {
  position: relative;
  padding: 110px 0 90px;
  background:
    linear-gradient(115deg, rgba(8, 12, 20, 0.96) 35%, rgba(8, 12, 20, 0.75) 75%, rgba(8, 12, 20, 0.5)),
    url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  border-bottom: 1px solid rgba(124, 92, 252, 0.2);
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(124, 92, 252, 0.15) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 120px;
  background: linear-gradient(180deg, transparent, rgba(8, 12, 20, 0.9));
  pointer-events: none;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 680px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 18px;
  border-radius: 50px;
  background: rgba(0, 229, 160, 0.1);
  border: 1px solid rgba(0, 229, 160, 0.25);
  color: var(--color-accent);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
  margin-bottom: 24px;
}
.hero-badge i { font-size: 14px; }
.hero h1 {
  font-size: 50px;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: 1px;
  margin-bottom: 16px;
}
.hero h1 .hl {
  background: linear-gradient(90deg, var(--color-primary-light), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  font-size: 20px;
  color: var(--color-text-muted);
  margin-bottom: 20px;
  font-weight: 500;
}
.hero-desc {
  font-size: 16px;
  color: var(--color-text-muted);
  max-width: 560px;
  margin-bottom: 36px;
  line-height: 1.8;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.hero-meta-row {
  display: flex;
  gap: 30px;
  margin-top: 44px;
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  flex-wrap: wrap;
}
.hero-meta-item {
  display: flex;
  align-items: center;
  gap: 10px;
}
.hero-meta-item i {
  font-size: 20px;
  color: var(--color-primary-light);
}
.hero-meta-item span {
  font-size: 13px;
  color: var(--color-text-muted);
}

/* ===== 板块头部 ===== */
.section { padding: 90px 0; }
.section-alt { background: var(--color-bg-alt); }
.section-tag {
  display: inline-block;
  padding: 5px 16px;
  border-radius: 50px;
  background: rgba(124, 92, 252, 0.1);
  border: 1px solid rgba(124, 92, 252, 0.25);
  color: var(--color-primary-light);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
  margin-bottom: 14px;
}
.section-head { margin-bottom: 50px; }
.section-title {
  font-size: 34px;
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
}
.section-sub {
  font-size: 16px;
  color: var(--color-text-muted);
  max-width: 640px;
  line-height: 1.7;
}

/* ===== 核心特色 ===== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.feature-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 36px 30px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  opacity: 0;
  transition: var(--transition);
}
.feature-card:hover {
  transform: translateY(-6px);
  background: var(--color-card-hover);
  border-color: rgba(124, 92, 252, 0.3);
  box-shadow: var(--shadow);
}
.feature-card:hover::before { opacity: 1; }
.feature-icon {
  width: 58px;
  height: 58px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 22px;
  background: linear-gradient(135deg, rgba(124, 92, 252, 0.2), rgba(0, 229, 160, 0.15));
  border: 1px solid rgba(124, 92, 252, 0.25);
  color: var(--color-primary-light);
}
.feature-card h3 {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 12px;
}
.feature-card p {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.75;
}

/* ===== 分类入口 ===== */
.category-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
.category-card {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  min-height: 320px;
  display: flex;
  align-items: flex-end;
  isolation: isolate;
  transition: var(--transition);
  border: 1px solid var(--color-border);
}
.category-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 20%, rgba(8, 12, 20, 0.88) 75%, rgba(8, 12, 20, 0.97) 100%);
  z-index: -1;
  transition: var(--transition);
}
.category-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(124, 92, 252, 0.35);
}
.category-card:hover::before {
  background: linear-gradient(180deg, transparent 10%, rgba(8, 12, 20, 0.82) 70%, rgba(8, 12, 20, 0.97) 100%);
}
.category-card .cat-bg {
  position: absolute;
  inset: 0;
  z-index: -2;
  background-size: cover;
  background-position: center;
  transition: transform 0.6s ease;
}
.category-card:hover .cat-bg { transform: scale(1.05); }
.category-body {
  padding: 36px;
  width: 100%;
}
.category-body .cat-icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: rgba(0, 229, 160, 0.15);
  border: 1px solid rgba(0, 229, 160, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--color-accent);
  margin-bottom: 14px;
}
.category-body h3 {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 8px;
}
.category-body p {
  font-size: 14px;
  color: var(--color-text-muted);
  max-width: 360px;
  margin-bottom: 18px;
}
.category-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent);
}
.category-link:hover { gap: 10px; color: #fff; }

/* ===== 最新资讯 ===== */
.news-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 40px;
  align-items: start;
}
.news-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.news-item {
  display: flex;
  padding: 24px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: var(--transition);
}
.news-item:first-child { padding-top: 0; }
.news-item:last-child { border-bottom: none; padding-bottom: 0; }
.news-item:hover .news-body h3 { color: var(--color-accent); }
.news-body { flex: 1; }
.news-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}
.tag {
  display: inline-block;
  padding: 3px 12px;
  border-radius: 50px;
  font-size: 12px;
  font-weight: 600;
  background: rgba(124, 92, 252, 0.12);
  border: 1px solid rgba(124, 92, 252, 0.3);
  color: var(--color-primary-light);
}
.tag-green {
  background: rgba(0, 229, 160, 0.08);
  border-color: rgba(0, 229, 160, 0.25);
  color: var(--color-accent);
}
.date {
  font-size: 13px;
  color: var(--color-text-dim);
  display: flex;
  align-items: center;
  gap: 6px;
}
.news-body h3 {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 8px;
  transition: var(--transition);
}
.news-body p {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.empty-tip {
  text-align: center;
  padding: 60px 20px;
  color: var(--color-text-muted);
  font-size: 16px;
  border: 1px dashed var(--color-border-light);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.02);
}
.news-side .side-card {
  background: var(--color-card);
  border-radius: var(--radius);
  padding: 28px;
  border: 1px solid var(--color-border);
  margin-bottom: 24px;
}
.news-side .side-card h4 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.news-side .side-card h4 i { color: var(--color-primary-light); }
.side-list { display: flex; flex-direction: column; gap: 14px; }
.side-list a {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 8px 10px;
  border-radius: 10px;
  transition: var(--transition);
}
.side-list a:hover { background: rgba(255, 255, 255, 0.04); }
.side-list a .num {
  color: var(--color-text-dim);
  font-weight: 700;
  font-size: 16px;
  min-width: 22px;
}
.side-list a span { font-size: 14px; color: var(--color-text); line-height: 1.5; }
.side-list a:hover span { color: var(--color-accent); }
.side-img {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
}
.side-img img { height: 180px; object-fit: cover; width: 100%; }
.side-img .side-img-text {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 40px 18px 16px;
  background: linear-gradient(180deg, transparent, rgba(8, 12, 20, 0.92));
  font-size: 14px;
  font-weight: 600;
  color: #fff;
}

/* ===== 数据统计 ===== */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  background: linear-gradient(120deg, rgba(124, 92, 252, 0.08), rgba(0, 229, 160, 0.05));
  border: 1px solid rgba(124, 92, 252, 0.18);
  border-radius: 24px;
  padding: 44px 40px;
  position: relative;
  overflow: hidden;
}
.stats-bar::before {
  content: '';
  position: absolute;
  top: -50%;
  left: 20%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(124, 92, 252, 0.12), transparent 70%);
  border-radius: 50%;
}
.stat-item {
  text-align: center;
  position: relative;
  z-index: 1;
}
.stat-num {
  font-size: 42px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  background: linear-gradient(135deg, #fff 30%, var(--color-primary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
  margin-bottom: 6px;
}
.stat-num .suffix { font-size: 26px; }
.stat-label {
  font-size: 14px;
  color: var(--color-text-muted);
}

/* ===== 精选推荐 ===== */
.picks-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.pick-card {
  background: var(--color-card);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: var(--transition);
}
.pick-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(124, 92, 252, 0.3);
}
.pick-img {
  position: relative;
  height: 160px;
  overflow: hidden;
}
.pick-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.pick-card:hover .pick-img img { transform: scale(1.06); }
.pick-img .pick-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(124, 92, 252, 0.9);
  color: #fff;
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 12px;
  font-weight: 600;
}
.pick-body { padding: 20px; }
.pick-body h3 {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 10px;
  transition: var(--transition);
}
.pick-card:hover .pick-body h3 { color: var(--color-accent); }
.pick-body p {
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 14px;
}
.pick-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--color-text-dim);
}
.pick-meta span { display: flex; align-items: center; gap: 6px; }

/* ===== 流程 ===== */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}
.step-item {
  position: relative;
  text-align: center;
  padding: 32px 20px;
}
.step-num {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #0a0e17;
  font-size: 13px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
}
.step-icon {
  width: 64px;
  height: 64px;
  border-radius: 18px;
  margin: 0 auto 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  color: var(--color-primary-light);
  background: var(--color-card);
  border: 1px solid var(--color-border);
  transition: var(--transition);
}
.step-item:hover .step-icon {
  border-color: var(--color-accent);
  color: var(--color-accent);
  box-shadow: 0 0 25px rgba(0, 229, 160, 0.15);
}
.step-item h3 { font-size: 17px; font-weight: 700; margin-bottom: 10px; }
.step-item p { font-size: 13px; color: var(--color-text-muted); line-height: 1.6; }

/* ===== FAQ ===== */
.faq-wrap { max-width: 820px; margin: 0 auto; }
.faq-item {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  margin-bottom: 14px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: rgba(124, 92, 252, 0.25); }
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  background: transparent;
  text-align: left;
  transition: var(--transition);
}
.faq-q:hover { color: var(--color-accent); }
.faq-q i {
  font-size: 14px;
  color: var(--color-text-dim);
  transition: var(--transition);
  flex-shrink: 0;
}
.faq-item.open .faq-q i { transform: rotate(180deg); color: var(--color-accent); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}
.faq-a-inner {
  padding: 0 24px 20px;
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.8;
}

/* ===== CTA ===== */
.cta-banner {
  position: relative;
  border-radius: 24px;
  padding: 70px 50px;
  overflow: hidden;
  background:
    linear-gradient(115deg, rgba(8, 12, 20, 0.92), rgba(8, 12, 20, 0.7)),
    url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
  border: 1px solid rgba(124, 92, 252, 0.2);
  text-align: center;
}
.cta-banner::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -80px;
  width: 250px;
  height: 250px;
  background: radial-gradient(circle, rgba(124, 92, 252, 0.15), transparent 70%);
  border-radius: 50%;
}
.cta-banner h2 {
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 14px;
  position: relative;
  z-index: 1;
}
.cta-banner p {
  color: var(--color-text-muted);
  max-width: 520px;
  margin: 0 auto 30px;
  font-size: 15px;
  position: relative;
  z-index: 1;
}
.cta-banner .btn { position: relative; z-index: 1; }

/* ===== Footer ===== */
.site-footer {
  background: var(--color-bg-alt);
  border-top: 1px solid rgba(124, 92, 252, 0.15);
  padding: 60px 0 0;
  margin-top: 90px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 50px;
  padding-bottom: 50px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.footer-brand .brand { margin-bottom: 18px; }
.footer-brand p {
  font-size: 14px;
  color: var(--color-text-muted);
  max-width: 350px;
  line-height: 1.8;
}
.footer-col h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 18px;
  color: #fff;
}
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.footer-col a {
  font-size: 14px;
  color: var(--color-text-muted);
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.footer-col a:hover { color: var(--color-accent); transform: translateX(3px); }
.footer-col a i { font-size: 12px; }
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 0;
  gap: 16px;
  flex-wrap: wrap;
}
.footer-copyright {
  font-size: 13px;
  color: var(--color-text-dim);
}
.footer-bottom-links {
  display: flex;
  gap: 20px;
}
.footer-bottom-links a {
  font-size: 13px;
  color: var(--color-text-dim);
}
.footer-bottom-links a:hover { color: var(--color-accent); }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .hero h1 { font-size: 40px; }
  .section-title { font-size: 28px; }
  .picks-grid { grid-template-columns: repeat(2, 1fr); }
  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .news-grid { grid-template-columns: 1fr; }
  .news-side { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
  .footer-grid { grid-template-columns: 2fr 1fr; gap: 40px; }
}

@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .hero { padding: 80px 0 70px; }
  .hero h1 { font-size: 34px; }
  .hero-sub { font-size: 17px; }
  .nav-wrap { height: 64px; }
  .brand { font-size: 18px; }
  .nav-cta .btn { display: none; }
  .menu-toggle { display: flex; }
  .main-nav {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(8, 12, 20, 0.98);
    backdrop-filter: blur(16px);
    flex-direction: column;
    align-items: stretch;
    padding: 16px 24px 24px;
    gap: 4px;
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.35s ease, opacity 0.3s ease;
    border-bottom: 1px solid rgba(124, 92, 252, 0.2);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  }
  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .main-nav a {
    padding: 14px 16px;
    font-size: 16px;
    border-radius: 10px;
  }
  .main-nav a.active::after { display: none; }
  .category-grid { grid-template-columns: 1fr; }
  .category-card { min-height: 240px; }
  .stats-bar { grid-template-columns: repeat(2, 1fr); gap: 24px; padding: 32px 24px; }
  .stat-num { font-size: 34px; }
  .faq-q { font-size: 15px; padding: 18px 20px; }
  .cta-banner { padding: 50px 28px; }
  .cta-banner h2 { font-size: 26px; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 520px) {
  .container { padding: 0 18px; }
  .hero h1 { font-size: 28px; }
  .hero-desc { font-size: 14px; }
  .hero-actions { flex-direction: column; width: 100%; }
  .hero-actions .btn { width: 100%; }
  .hero-meta-row { gap: 16px; }
  .section-title { font-size: 24px; }
  .feature-grid { grid-template-columns: 1fr; }
  .picks-grid { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: 1fr; }
  .stats-bar { grid-template-columns: 1fr 1fr; gap: 18px; padding: 24px 16px; }
  .stat-num { font-size: 28px; }
  .news-side { grid-template-columns: 1fr; }
  .news-body h3 { font-size: 16px; }
  .category-body { padding: 24px; }
  .category-body h3 { font-size: 20px; }
  .btn { padding: 11px 22px; font-size: 14px; }
}

/* roulang page: article */
:root {
    --bg-deep: #070a12;
    --bg-dark: #0a0e17;
    --bg-surface: #111927;
    --bg-card: #141d2e;
    --bg-card-hover: #182338;
    --bg-input: #0d1320;
    --neon-cyan: #00e5ff;
    --neon-green: #00ffa3;
    --neon-purple: #a855f7;
    --neon-pink: #ff2d78;
    --text-main: #e6edf7;
    --text-weak: #93a0b4;
    --text-mute: #5f6f87;
    --border: rgba(0, 229, 255, 0.15);
    --border-strong: rgba(0, 229, 255, 0.35);
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 22px;
    --shadow-card: 0 12px 34px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 24px rgba(0, 229, 255, 0.18);
    --gradient-primary: linear-gradient(135deg, #00e5ff, #00ffa3);
    --gradient-dynamic: linear-gradient(135deg, #00e5ff, #a855f7, #ff2d78);
    --header-h: 72px;
    --section-gap: 88px;
    --container-w: 1200px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    background: var(--bg-dark);
    color: var(--text-main);
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
    font-size: 16px;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color 0.25s ease, border-color 0.25s ease; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; }
input, textarea { font-family: inherit; }
.container { width: min(var(--container-w), 92%); margin: 0 auto; }

/* ---------- Header / Nav ---------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 999;
    background: rgba(7, 10, 18, 0.9);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
}
.header-inner {
    height: var(--header-h);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}
.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 20px;
    letter-spacing: 0.5px;
    white-space: nowrap;
}
.brand i {
    font-size: 22px;
    background: var(--gradient-dynamic);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 0 10px rgba(0, 229, 255, 0.4));
}
.brand .brand-txt {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.main-nav {
    display: flex;
    align-items: center;
    gap: 6px;
}
.main-nav a {
    position: relative;
    padding: 10px 18px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-weak);
    border: 1px solid transparent;
    transition: all 0.3s ease;
}
.main-nav a:hover {
    color: var(--neon-cyan);
    border-color: var(--border-strong);
    box-shadow: 0 0 18px rgba(0, 229, 255, 0.15);
}
.main-nav a.active {
    color: #041018;
    background: var(--gradient-primary);
    font-weight: 700;
    box-shadow: 0 0 22px rgba(0, 229, 255, 0.35);
    border-color: transparent;
}
.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}
.nav-toggle {
    display: none;
    width: 42px;
    height: 42px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-strong);
    background: transparent;
    color: var(--neon-cyan);
    font-size: 19px;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}
.nav-toggle:hover { background: rgba(0, 229, 255, 0.08); box-shadow: var(--shadow-glow); }

/* ---------- Article Banner ---------- */
.article-banner {
    position: relative;
    padding: 90px 0 64px;
    background:
        linear-gradient(rgba(7, 10, 18, 0.82), rgba(7, 10, 18, 0.94)),
        url('/assets/images/backpic/back-2.png') center / cover no-repeat;
    border-bottom: 1px solid var(--border);
}
.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-weak);
    margin-bottom: 26px;
}
.breadcrumb a { color: var(--neon-cyan); }
.breadcrumb a:hover { color: var(--neon-green); }
.breadcrumb .sep { color: var(--text-mute); }
.article-banner .article-cate-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 16px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    color: var(--neon-cyan);
    border: 1px solid var(--border-strong);
    background: rgba(0, 229, 255, 0.08);
    margin-bottom: 18px;
}
.article-banner h1 {
    font-size: clamp(28px, 4vw, 42px);
    font-weight: 800;
    line-height: 1.3;
    max-width: 860px;
    letter-spacing: 1px;
    background: linear-gradient(135deg, #ffffff, #b8e6ff);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.article-meta-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 18px;
    margin-top: 22px;
    color: var(--text-weak);
    font-size: 14px;
}
.article-meta-row i { color: var(--neon-cyan); margin-right: 5px; }
.article-meta-row .meta-item { display: inline-flex; align-items: center; }

/* ---------- Main Layout ---------- */
.article-main {
    padding: 60px 0 var(--section-gap);
    background: linear-gradient(180deg, var(--bg-deep), var(--bg-dark));
}
.article-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 40px;
    align-items: start;
}
.article-card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-card);
}
.article-cover-wrap {
    position: relative;
    height: 320px;
    overflow: hidden;
}
.article-cover-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}
.article-cover-wrap:hover img { transform: scale(1.04); }
.article-cover-wrap::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 45%, rgba(7, 10, 18, 0.85));
}
.article-body-inner { padding: 36px 40px 44px; }
.article-content {
    font-size: 16.5px;
    line-height: 1.95;
    color: #c7d0df;
}
.article-content h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-main);
    margin: 36px 0 16px;
    padding-left: 16px;
    border-left: 4px solid var(--neon-cyan);
    line-height: 1.4;
}
.article-content h3 {
    font-size: 19px;
    font-weight: 600;
    color: #dce7f5;
    margin: 28px 0 12px;
}
.article-content p { margin-bottom: 16px; }
.article-content a { color: var(--neon-cyan); border-bottom: 1px dashed var(--border-strong); }
.article-content a:hover { color: var(--neon-green); }
.article-content img { border-radius: var(--radius-md); margin: 22px 0; box-shadow: var(--shadow-card); }
.article-content ul, .article-content ol { margin: 16px 0 20px; padding-left: 24px; }
.article-content ul li { list-style: disc; margin-bottom: 8px; }
.article-content ol li { list-style: decimal; margin-bottom: 8px; }
.article-content blockquote {
    margin: 24px 0;
    padding: 18px 22px;
    border-radius: var(--radius-md);
    background: rgba(0, 229, 255, 0.06);
    border-left: 4px solid var(--neon-cyan);
    color: var(--text-weak);
    font-style: normal;
}
.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 22px 0;
    border-radius: var(--radius-sm);
    overflow: hidden;
    font-size: 15px;
}
.article-content th {
    background: rgba(0, 229, 255, 0.1);
    color: var(--neon-cyan);
    font-weight: 600;
    padding: 12px 14px;
    text-align: left;
    border: 1px solid var(--border);
}
.article-content td { padding: 11px 14px; border: 1px solid var(--border); color: var(--text-weak); }
.article-content code {
    background: rgba(0, 229, 255, 0.1);
    padding: 2px 8px;
    border-radius: 6px;
    font-size: 14px;
    color: var(--neon-green);
}
.article-tag-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding-top: 26px;
    margin-top: 32px;
    border-top: 1px solid var(--border);
}
.article-tag-row .tag-lbl {
    color: var(--text-mute);
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.article-tag-row .tag {
    padding: 6px 14px;
    border-radius: 999px;
    font-size: 13px;
    color: var(--text-weak);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border);
    transition: all 0.25s ease;
}
.article-tag-row .tag:hover { color: var(--neon-cyan); border-color: var(--border-strong); box-shadow: var(--shadow-glow); }
.article-share {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-top: 22px;
    margin-top: 26px;
    border-top: 1px solid var(--border);
}
.article-share span { font-size: 14px; color: var(--text-weak); }
.share-btn {
    width: 38px;
    height: 38px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-weak);
    transition: all 0.3s ease;
}
.share-btn:hover { color: var(--neon-cyan); border-color: var(--border-strong); box-shadow: var(--shadow-glow); transform: translateY(-2px); }

/* Not found */
.not-found {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 80px 40px;
    text-align: center;
    box-shadow: var(--shadow-card);
}
.not-found i { font-size: 52px; color: var(--neon-purple); margin-bottom: 18px; }
.not-found h2 { font-size: 28px; margin-bottom: 12px; }
.not-found p { color: var(--text-weak); margin-bottom: 26px; }

/* ---------- Sidebar ---------- */
.sidebar { display: flex; flex-direction: column; gap: 28px; position: sticky; top: calc(var(--header-h) + 20px); }
.sidebar-card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 26px;
    box-shadow: var(--shadow-card);
}
.sidebar-card .side-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 17px;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 20px;
}
.sidebar-card .side-title i { color: var(--neon-cyan); font-size: 18px; }
.sidebar-card .side-title::after {
    content: "";
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, var(--border-strong), transparent);
}
.side-cate-list li { margin-bottom: 8px; }
.side-cate-list a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid transparent;
    color: var(--text-weak);
    font-size: 14.5px;
    transition: all 0.25s ease;
}
.side-cate-list a:hover, .side-cate-list a.active {
    color: var(--neon-cyan);
    border-color: var(--border-strong);
    background: rgba(0, 229, 255, 0.06);
    box-shadow: var(--shadow-glow);
}
.side-cate-list .badge-count {
    font-size: 12px;
    padding: 2px 10px;
    border-radius: 999px;
    background: rgba(0, 229, 255, 0.12);
    color: var(--neon-cyan);
}
.side-hot-item {
    display: flex;
    gap: 14px;
    padding: 12px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    transition: all 0.25s ease;
}
.side-hot-item:last-child { border-bottom: none; }
.side-hot-item:hover { transform: translateX(4px); }
.side-hot-item .hot-num {
    width: 28px;
    height: 28px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-mute);
    font-size: 13px;
    font-weight: 700;
}
.side-hot-item:nth-child(1) .hot-num, .side-hot-item:nth-child(2) .hot-num, .side-hot-item:nth-child(3) .hot-num {
    background: rgba(0, 229, 255, 0.14);
    color: var(--neon-cyan);
}
.side-hot-item .hot-info { flex: 1; min-width: 0; }
.side-hot-item .hot-title {
    font-size: 14px;
    color: var(--text-main);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 5px;
    transition: color 0.25s ease;
}
.side-hot-item:hover .hot-title { color: var(--neon-cyan); }
.side-hot-item .hot-meta { font-size: 12px; color: var(--text-mute); }
.side-cover-card {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    min-height: 210px;
    display: flex;
    align-items: flex-end;
    padding: 22px;
    background:
        linear-gradient(180deg, rgba(7, 10, 18, 0.2), rgba(7, 10, 18, 0.92)),
        url('/assets/images/coverpic/cover-5.png') center / cover no-repeat;
    border: 1px solid var(--border);
}
.side-cover-card .cover-card-txt { position: relative; z-index: 2; }
.side-cover-card h4 { font-size: 17px; margin-bottom: 6px; }
.side-cover-card p { font-size: 13px; color: var(--text-weak); margin-bottom: 12px; }
.side-cover-card .btn-mini {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 16px;
    border-radius: 999px;
    background: var(--gradient-primary);
    color: #041018;
    font-size: 13px;
    font-weight: 700;
    transition: all 0.3s ease;
}
.side-cover-card .btn-mini:hover { box-shadow: 0 0 22px rgba(0, 229, 255, 0.4); transform: translateY(-2px); }

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 600;
    border: 1px solid transparent;
    transition: all 0.3s ease;
}
.btn-primary {
    background: var(--gradient-primary);
    color: #041018;
    font-weight: 700;
    box-shadow: 0 4px 20px rgba(0, 229, 255, 0.25);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(0, 229, 255, 0.45); }
.btn-ghost {
    background: transparent;
    color: var(--neon-cyan);
    border-color: var(--border-strong);
}
.btn-ghost:hover { background: rgba(0, 229, 255, 0.08); box-shadow: var(--shadow-glow); transform: translateY(-2px); }
.btn:focus-visible, a:focus-visible { outline: 2px solid var(--neon-cyan); outline-offset: 3px; }

/* ---------- Related Section ---------- */
.related-section { padding: 70px 0; }
.section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 34px;
}
.section-head h2 {
    font-size: 28px;
    font-weight: 800;
    position: relative;
    padding-bottom: 12px;
}
.section-head h2::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 56px;
    height: 4px;
    border-radius: 4px;
    background: var(--gradient-primary);
    box-shadow: 0 0 14px rgba(0, 229, 255, 0.5);
}
.section-head .more-link { color: var(--text-weak); font-size: 14px; display: inline-flex; align-items: center; gap: 6px; }
.section-head .more-link:hover { color: var(--neon-cyan); }
.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.rel-card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all 0.35s ease;
}
.rel-card:hover { transform: translateY(-6px); border-color: var(--border-strong); box-shadow: var(--shadow-card), var(--shadow-glow); }
.rel-card .rel-cover { height: 170px; overflow: hidden; position: relative; }
.rel-card .rel-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.rel-card:hover .rel-cover img { transform: scale(1.06); }
.rel-card .rel-body { padding: 20px 22px 24px; }
.rel-card .rel-cate { font-size: 12px; color: var(--neon-cyan); font-weight: 600; margin-bottom: 8px; }
.rel-card h3 { font-size: 17px; line-height: 1.5; margin-bottom: 10px; }
.rel-card h3 a { color: var(--text-main); }
.rel-card h3 a:hover { color: var(--neon-cyan); }
.rel-card .rel-desc {
    font-size: 13.5px;
    color: var(--text-weak);
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 14px;
}
.rel-card .rel-meta { font-size: 12.5px; color: var(--text-mute); display: flex; gap: 14px; }

/* ---------- FAQ ---------- */
.faq-section { padding: 70px 0; background: var(--bg-deep); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.faq-grid { max-width: 860px; margin: 0 auto; display: flex; flex-direction: column; gap: 16px; }
.faq-item {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.faq-item:hover { border-color: var(--border-strong); }
.faq-item summary {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 20px 24px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-main);
    list-style: none;
    transition: color 0.3s ease;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .faq-icon {
    width: 30px;
    height: 30px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(0, 229, 255, 0.12);
    color: var(--neon-cyan);
    font-size: 13px;
    transition: all 0.3s ease;
}
.faq-item[open] summary .faq-icon { background: var(--gradient-primary); color: #041018; transform: rotate(135deg); }
.faq-item[open] summary { color: var(--neon-cyan); }
.faq-item .faq-answer { padding: 0 24px 22px 68px; color: var(--text-weak); font-size: 15px; line-height: 1.85; }

/* ---------- CTA ---------- */
.cta-section { padding: 80px 0; }
.cta-box {
    position: relative;
    background:
        linear-gradient(rgba(7, 10, 18, 0.78), rgba(7, 10, 18, 0.86)),
        url('/assets/images/backpic/back-3.png') center / cover no-repeat;
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-lg);
    padding: 60px 54px;
    text-align: center;
    overflow: hidden;
    box-shadow: var(--shadow-card);
}
.cta-box::before {
    content: "";
    position: absolute;
    top: -80px;
    left: 50%;
    transform: translateX(-50%);
    width: 280px;
    height: 280px;
    background: radial-gradient(circle, rgba(0, 229, 255, 0.2), transparent 70%);
    pointer-events: none;
}
.cta-box h2 { font-size: 28px; font-weight: 800; margin-bottom: 14px; position: relative; }
.cta-box p { color: var(--text-weak); max-width: 600px; margin: 0 auto 28px; position: relative; }
.cta-box .btn-row { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; position: relative; }

/* ---------- Footer ---------- */
.site-footer {
    background: var(--bg-deep);
    border-top: 1px solid var(--border);
    padding: 56px 0 0;
    position: relative;
}
.site-footer::before {
    content: "";
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--neon-cyan), transparent);
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.3fr 1fr 1fr;
    gap: 44px;
    padding-bottom: 40px;
}
.footer-brand p { font-size: 14px; color: var(--text-weak); margin-top: 16px; max-width: 340px; line-height: 1.85; }
.footer-col h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 18px;
    padding-bottom: 10px;
    position: relative;
}
.footer-col h4::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 28px;
    height: 3px;
    border-radius: 3px;
    background: var(--gradient-primary);
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a {
    font-size: 14px;
    color: var(--text-weak);
    display: inline-flex;
    align-items: center;
    gap: 7px;
    transition: all 0.25s ease;
}
.footer-col ul a i { font-size: 10px; color: var(--text-mute); transition: all 0.25s ease; }
.footer-col ul a:hover { color: var(--neon-cyan); padding-left: 4px; }
.footer-col ul a:hover i { color: var(--neon-cyan); }
.footer-bottom {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 22px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 13px;
    color: var(--text-mute);
}
.footer-bottom-links { display: flex; gap: 18px; }
.footer-bottom-links a { color: var(--text-mute); transition: color 0.25s ease; }
.footer-bottom-links a:hover { color: var(--neon-cyan); }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
    :root { --section-gap: 64px; }
    .article-layout { grid-template-columns: 1fr; gap: 32px; }
    .sidebar { position: static; display: grid; grid-template-columns: 1fr 1fr; }
    .related-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    .main-nav {
        position: fixed;
        top: var(--header-h);
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: stretch;
        gap: 4px;
        background: rgba(7, 10, 18, 0.98);
        border-bottom: 1px solid var(--border);
        padding: 16px 5%;
        transform: translateY(-130%);
        visibility: hidden;
        transition: transform 0.4s ease, visibility 0.4s ease;
        z-index: 998;
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
    }
    .main-nav.open { transform: translateY(0); visibility: visible; }
    .main-nav a { padding: 14px 18px; border-radius: var(--radius-sm); text-align: center; font-size: 15px; }
    .nav-toggle { display: flex; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .article-banner h1 { font-size: 26px; }
    .article-body-inner { padding: 26px 22px 32px; }
    .article-cover-wrap { height: 220px; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .related-grid { grid-template-columns: 1fr; }
    .sidebar { grid-template-columns: 1fr; }
    .cta-box { padding: 44px 26px; }
}
@media (max-width: 520px) {
    .brand { font-size: 17px; }
    .brand i { font-size: 19px; }
    .section-head { flex-direction: column; align-items: flex-start; gap: 10px; }
    .section-head h2 { font-size: 22px; }
    .article-meta-row { gap: 12px; }
    .rel-card .rel-cover { height: 160px; }
    .article-share { flex-wrap: wrap; }
    .footer-grid { gap: 26px; }
    .cta-box h2 { font-size: 22px; }
    .article-tag-row { gap: 8px; }
    .article-tag-row .tag { padding: 5px 12px; font-size: 12px; }
}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
:root {
  --primary: #00e5ff;
  --primary-dark: #0097b2;
  --primary-glow: rgba(0, 229, 255, 0.35);
  --accent: #a855f7;
  --accent-glow: rgba(168, 85, 247, 0.35);
  --grad-primary: linear-gradient(135deg, #00e5ff 0%, #a855f7 100%);
  --bg-site: #0a0e17;
  --bg-deep: #080c13;
  --bg-card: #111a29;
  --bg-card-hover: #162234;
  --bg-input: #0d1521;
  --text-light: #e8edf5;
  --text-body: #aab4c5;
  --text-dim: #6b7a8f;
  --border: #1e293b;
  --border-light: #2a3a54;
  --radius-sm: 8px;
  --radius: 16px;
  --radius-lg: 24px;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow: 0 10px 36px rgba(0, 0, 0, 0.45);
  --shadow-glow: 0 0 26px rgba(0, 229, 255, 0.15);
  --spacing-section: clamp(64px, 8vw, 110px);
  --transition: all 0.3s ease;
}

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

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

body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-body);
  background: var(--bg-site);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

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

ul, ol {
  list-style: none;
}

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

button {
  cursor: pointer;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

section {
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto clamp(36px, 5vw, 56px);
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 229, 255, 0.08);
  border: 1px solid rgba(0, 229, 255, 0.2);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 100px;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
  text-transform: uppercase;
}

.section-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  color: var(--text-light);
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.section-title span {
  background: var(--grad-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-desc {
  font-size: 16px;
  color: var(--text-dim);
  line-height: 1.8;
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  font-size: 15px;
  padding: 13px 28px;
  border-radius: 50px;
  transition: var(--transition);
  cursor: pointer;
  white-space: nowrap;
  line-height: 1.4;
}

.btn-primary {
  background: var(--grad-primary);
  color: #06121a;
  box-shadow: 0 0 18px rgba(0, 229, 255, 0.2);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0, 229, 255, 0.35);
  color: #06121a;
}

.btn-outline {
  background: transparent;
  border: 1.5px solid rgba(0, 229, 255, 0.4);
  color: var(--primary);
}

.btn-outline:hover {
  border-color: var(--primary);
  background: rgba(0, 229, 255, 0.08);
  box-shadow: 0 0 20px rgba(0, 229, 255, 0.15);
  transform: translateY(-2px);
}

.btn-accent {
  background: linear-gradient(135deg, #a855f7, #6366f1);
  color: #fff;
  box-shadow: 0 0 18px rgba(168, 85, 247, 0.25);
}

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(168, 85, 247, 0.35);
}

.btn:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
}

/* ===== Header / 导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(8, 12, 19, 0.9);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 19px;
  font-weight: 800;
  color: var(--text-light);
  white-space: nowrap;
}

.brand i {
  font-size: 22px;
  background: var(--grad-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 8px rgba(0, 229, 255, 0.4));
}

.brand-txt {
  letter-spacing: -0.01em;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.main-nav a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-body);
  border-radius: 10px;
  position: relative;
  transition: var(--transition);
  white-space: nowrap;
}

.main-nav a::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 2px;
  width: 0;
  height: 2px;
  background: var(--grad-primary);
  border-radius: 2px;
  transform: translateX(-50%);
  box-shadow: 0 0 10px var(--primary-glow);
  transition: width 0.3s ease;
}

.main-nav a:hover {
  color: var(--text-light);
  background: rgba(255, 255, 255, 0.03);
}

.main-nav a:hover::after {
  width: 60%;
}

.main-nav a.active {
  color: var(--primary);
  background: rgba(0, 229, 255, 0.07);
  text-shadow: 0 0 12px rgba(0, 229, 255, 0.4);
}

.main-nav a.active::after {
  width: 70%;
  box-shadow: 0 0 14px var(--primary-glow);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-search {
  display: flex;
  align-items: center;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 8px 16px;
  gap: 8px;
  min-width: 180px;
  transition: var(--transition);
}

.header-search i {
  color: var(--text-dim);
  font-size: 14px;
}

.header-search input {
  background: none;
  border: none;
  outline: none;
  color: var(--text-light);
  font-size: 14px;
  width: 100%;
}

.header-search input::placeholder {
  color: var(--text-dim);
}

.header-search:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.1);
}

.header-action-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--grad-primary);
  color: #06121a;
  font-weight: 700;
  font-size: 14px;
  padding: 10px 22px;
  border-radius: 100px;
  box-shadow: 0 0 16px rgba(0, 229, 255, 0.2);
  transition: var(--transition);
}

.header-action-btn:hover {
  box-shadow: 0 0 26px rgba(0, 229, 255, 0.4);
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  border: 1px solid var(--border);
  color: var(--text-light);
  font-size: 20px;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.03);
  transition: var(--transition);
}

.nav-toggle:hover {
  border-color: var(--primary);
  color: var(--primary);
}

/* ===== 页内 Banner ===== */
.cat-banner {
  background: linear-gradient(to bottom, rgba(8, 12, 19, 0.3), var(--bg-site) 100%), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  padding: clamp(60px, 9vw, 120px) 0 clamp(60px, 8vw, 110px);
  position: relative;
  overflow: hidden;
}

.cat-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 20% 50%, rgba(0, 229, 255, 0.08), transparent 50%),
              radial-gradient(ellipse at 80% 80%, rgba(168, 85, 247, 0.08), transparent 40%);
  pointer-events: none;
}

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

.banner-inner {
  max-width: 760px;
}

.cat-banner .banner-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 229, 255, 0.1);
  border: 1px solid rgba(0, 229, 255, 0.25);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  padding: 8px 18px;
  border-radius: 100px;
  margin-bottom: 20px;
  letter-spacing: 0.05em;
}

.cat-banner h1 {
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 900;
  color: var(--text-light);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.cat-banner h1 span {
  background: var(--grad-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 18px rgba(0, 229, 255, 0.3));
}

.cat-banner p {
  font-size: 17px;
  color: var(--text-body);
  line-height: 1.8;
  margin-bottom: 30px;
  max-width: 620px;
}

.banner-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.banner-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-top: 40px;
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.banner-meta-item {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-body);
  font-size: 14px;
}

.banner-meta-item i {
  color: var(--primary);
  font-size: 17px;
}

/* ===== 攻略子分类 ===== */
.sub-cats {
  padding: var(--spacing-section) 0;
  background: var(--bg-site);
}

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

.sub-cat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 26px;
  text-align: center;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.sub-cat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--grad-primary);
  opacity: 0;
  transition: var(--transition);
}

.sub-cat-card:hover {
  transform: translateY(-6px);
  background: var(--bg-card-hover);
  border-color: rgba(0, 229, 255, 0.3);
  box-shadow: var(--shadow), var(--shadow-glow);
}

.sub-cat-card:hover::before {
  opacity: 1;
}

.sub-cat-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 18px;
  border-radius: 18px;
  background: rgba(0, 229, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  color: var(--primary);
  transition: var(--transition);
}

.sub-cat-card:nth-child(2) .sub-cat-icon {
  background: rgba(168, 85, 247, 0.1);
  color: var(--accent);
}

.sub-cat-card:nth-child(3) .sub-cat-icon {
  background: rgba(0, 200, 130, 0.1);
  color: #00c882;
}

.sub-cat-card:nth-child(4) .sub-cat-icon {
  background: rgba(255, 170, 0, 0.1);
  color: #ffaa00;
}

.sub-cat-card:hover .sub-cat-icon {
  transform: scale(1.08) rotate(-4deg);
}

.sub-cat-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-light);
  margin-bottom: 10px;
}

.sub-cat-card p {
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.6;
}

.sub-cat-card .sub-cat-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  margin-top: 16px;
  opacity: 0.8;
  transition: var(--transition);
}

.sub-cat-card:hover .sub-cat-link {
  opacity: 1;
  gap: 10px;
}

/* ===== 精选攻略 ===== */
.hot-guides {
  padding: var(--spacing-section) 0;
  background: var(--bg-deep);
  position: relative;
  overflow: hidden;
}

.hot-guides::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(168, 85, 247, 0.08), transparent 60%);
  pointer-events: none;
}

.guide-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.guide-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.guide-card:hover {
  transform: translateY(-8px);
  border-color: rgba(0, 229, 255, 0.35);
  box-shadow: var(--shadow), var(--shadow-glow);
}

.guide-cover {
  position: relative;
  aspect-ratio: 16/10;
  overflow: hidden;
}

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

.guide-card:hover .guide-cover img {
  transform: scale(1.06);
}

.guide-cover .cover-mask {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10, 14, 23, 0.9) 0%, transparent 50%);
}

.guide-cover .guide-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  background: var(--grad-primary);
  color: #06121a;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 100px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.guide-cover .guide-time {
  position: absolute;
  bottom: 12px;
  right: 14px;
  color: rgba(255, 255, 255, 0.85);
  font-size: 13px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(0, 0, 0, 0.4);
  padding: 4px 10px;
  border-radius: 100px;
  backdrop-filter: blur(8px);
}

.guide-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.guide-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.guide-tags span {
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
  background: rgba(0, 229, 255, 0.07);
  padding: 3px 10px;
  border-radius: 100px;
  border: 1px solid rgba(0, 229, 255, 0.15);
  transition: var(--transition);
}

.guide-tags span:hover {
  background: rgba(0, 229, 255, 0.15);
}

.guide-body h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-light);
  line-height: 1.5;
  margin-bottom: 10px;
}

.guide-body h3 a:hover {
  color: var(--primary);
}

.guide-body p {
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.7;
  margin-bottom: 18px;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.guide-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.guide-author {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-dim);
}

.guide-author .avatar {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--grad-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  color: #06121a;
  font-weight: 700;
}

.guide-read-more {
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: var(--transition);
}

.guide-read-more:hover {
  gap: 10px;
  text-shadow: 0 0 10px rgba(0, 229, 255, 0.4);
}

/* ===== 热门攻略排行 ===== */
.rank-guides {
  padding: var(--spacing-section) 0;
  background: var(--bg-site);
}

.rank-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 960px;
  margin: 0 auto;
}

.rank-item {
  display: flex;
  align-items: center;
  gap: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  transition: var(--transition);
}

.rank-item:hover {
  border-color: rgba(0, 229, 255, 0.3);
  background: var(--bg-card-hover);
  transform: translateX(6px);
  box-shadow: var(--shadow-sm);
}

.rank-num {
  font-size: 26px;
  font-weight: 900;
  color: var(--border-light);
  font-style: italic;
  min-width: 48px;
  text-align: center;
  line-height: 1;
  transition: var(--transition);
}

.rank-item:nth-child(1) .rank-num,
.rank-item:nth-child(2) .rank-num,
.rank-item:nth-child(3) .rank-num {
  background: var(--grad-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.rank-item a {
  flex: 1;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-light);
  line-height: 1.5;
}

.rank-item a:hover {
  color: var(--primary);
}

.rank-tag {
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 100px;
  flex-shrink: 0;
}

.rank-tag.hot {
  color: #ff6b6b;
  background: rgba(255, 107, 107, 0.1);
  border: 1px solid rgba(255, 107, 107, 0.25);
}

.rank-tag.new {
  color: #00c882;
  background: rgba(0, 200, 130, 0.1);
  border: 1px solid rgba(0, 200, 130, 0.25);
}

.rank-tag.top {
  color: #ffaa00;
  background: rgba(255, 170, 0, 0.1);
  border: 1px solid rgba(255, 170, 0, 0.25);
}

.rank-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  color: var(--text-dim);
  font-size: 13px;
  flex-shrink: 0;
}

.rank-meta span {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.rank-meta i {
  font-size: 14px;
}

/* ===== 攻略流程 ===== */
.guide-process {
  padding: var(--spacing-section) 0;
  background: var(--bg-deep);
  position: relative;
  overflow: hidden;
}

.guide-process::before {
  content: '';
  position: absolute;
  bottom: -200px;
  left: -200px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0, 229, 255, 0.07), transparent 60%);
  pointer-events: none;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  margin-bottom: 40px;
}

.process-step {
  position: relative;
  text-align: center;
  padding: 30px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: var(--transition);
}

.process-step:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 229, 255, 0.25);
  box-shadow: var(--shadow-sm);
}

.process-step .step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--grad-primary);
  color: #06121a;
  font-size: 18px;
  font-weight: 800;
  margin-bottom: 16px;
  box-shadow: 0 0 14px rgba(0, 229, 255, 0.3);
}

.process-step:nth-child(2) .step-num {
  background: linear-gradient(135deg, #a855f7, #6366f1);
  box-shadow: 0 0 14px rgba(168, 85, 247, 0.3);
}

.process-step:nth-child(3) .step-num {
  background: linear-gradient(135deg, #00c882, #00e5ff);
  box-shadow: 0 0 14px rgba(0, 200, 130, 0.3);
}

.process-step:nth-child(4) .step-num {
  background: linear-gradient(135deg, #ffaa00, #ff6b6b);
  box-shadow: 0 0 14px rgba(255, 170, 0, 0.3);
}

.process-step h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-light);
  margin-bottom: 10px;
}

.process-step p {
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.6;
}

.process-arrow {
  position: absolute;
  top: 50%;
  right: -15px;
  transform: translateY(-50%);
  color: var(--text-dim);
  font-size: 16px;
  z-index: 2;
  background: var(--bg-deep);
  border-radius: 50%;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ===== FAQ ===== */
.faq-section {
  padding: var(--spacing-section) 0;
  background: var(--bg-site);
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

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

.faq-item:hover {
  border-color: rgba(0, 229, 255, 0.2);
}

.faq-item.active {
  border-color: rgba(0, 229, 255, 0.35);
  box-shadow: var(--shadow-glow);
}

.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-light);
  transition: var(--transition);
}

.faq-q:hover {
  color: var(--primary);
}

.faq-q .faq-icon {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: rgba(0, 229, 255, 0.08);
  border: 1px solid rgba(0, 229, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--primary);
  flex-shrink: 0;
  transition: var(--transition);
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
  background: var(--grad-primary);
  color: #06121a;
}

.faq-a {
  display: none;
  padding: 0 24px 22px;
  font-size: 15px;
  color: var(--text-body);
  line-height: 1.8;
}

.faq-a p {
  padding: 14px 18px;
  background: rgba(0, 229, 255, 0.03);
  border-left: 3px solid var(--primary);
  border-radius: 0 10px 10px 0;
}

/* ===== CTA ===== */
.cta-section {
  padding: clamp(60px, 8vw, 100px) 0;
  background: linear-gradient(135deg, rgba(0, 229, 255, 0.06), rgba(168, 85, 247, 0.06));
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  opacity: 0.06;
  pointer-events: none;
}

.cta-box {
  position: relative;
  z-index: 2;
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
  padding: clamp(36px, 6vw, 60px);
  background: var(--bg-card);
  border: 1px solid rgba(0, 229, 255, 0.2);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow), var(--shadow-glow);
}

.cta-box h2 {
  font-size: clamp(24px, 3.6vw, 34px);
  font-weight: 800;
  color: var(--text-light);
  margin-bottom: 12px;
}

.cta-box h2 span {
  background: var(--grad-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.cta-box > p {
  color: var(--text-body);
  font-size: 16px;
  margin-bottom: 28px;
  line-height: 1.7;
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--bg-deep);
  border-top: 1px solid var(--border);
  padding: 64px 0 0;
}

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

.footer-brand .brand {
  font-size: 20px;
  margin-bottom: 16px;
}

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

.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-light);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
  position: relative;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 40px;
  height: 2px;
  background: var(--grad-primary);
  border-radius: 2px;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-body);
  transition: var(--transition);
}

.footer-col ul a i {
  font-size: 11px;
  color: var(--text-dim);
  transition: var(--transition);
}

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

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

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  padding: 24px 0;
  border-top: 1px solid var(--border);
}

.footer-copyright {
  font-size: 13px;
  color: var(--text-dim);
}

.footer-bottom-links {
  display: flex;
  gap: 24px;
}

.footer-bottom-links a {
  font-size: 13px;
  color: var(--text-dim);
  transition: var(--transition);
}

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

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .sub-cat-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

  .process-arrow {
    display: none;
  }

  .header-search {
    display: none;
  }

  .header-action-btn {
    display: none;
  }

  .main-nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(8, 12, 19, 0.97);
    flex-direction: column;
    padding: 20px 24px 26px;
    gap: 6px;
    border-bottom: 1px solid var(--border);
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    backdrop-filter: blur(20px);
    z-index: 999;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  }

  .main-nav.show {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .main-nav a {
    display: block;
    text-align: center;
    padding: 14px 20px;
    width: 100%;
    border-radius: 10px;
  }

  .main-nav a::after {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
  }
}

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

  .header-inner {
    height: 64px;
  }

  .brand {
    font-size: 17px;
  }

  .brand i {
    font-size: 19px;
  }

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

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

  .footer-bottom-links {
    justify-content: center;
    flex-wrap: wrap;
  }

  .rank-item {
    flex-wrap: wrap;
    padding: 16px 18px;
    gap: 12px;
  }

  .rank-meta {
    width: 100%;
    justify-content: flex-start;
    padding-left: 48px;
  }

  .rank-tag {
    margin-left: auto;
  }

  .banner-meta {
    gap: 16px;
  }
}

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

  .sub-cat-grid,
  .guide-grid,
  .process-grid {
    grid-template-columns: 1fr;
  }

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

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

  .banner-meta {
    flex-direction: column;
    gap: 10px;
  }

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

  .rank-item a {
    font-size: 15px;
  }

  .rank-meta {
    padding-left: 0;
  }

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

  .faq-a {
    padding: 0 18px 18px;
  }

  .footer-grid {
    gap: 28px;
  }

  .footer-brand .brand {
    font-size: 18px;
  }

  .brand-txt {
    letter-spacing: 0;
  }
}

/* ===== 焦点可见 ===== */
a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
}

/* roulang page: category2 */
:root {
      --primary: #00e5ff;
      --primary-glare: #66f0ff;
      --primary-dark: #009bbf;
      --secondary: #b16dff;
      --accent: #ffd166;
      --bg-deep: #0a0e1a;
      --bg-base: #111827;
      --bg-card: #1a2234;
      --bg-card-hover: #202b42;
      --line: rgba(255, 255, 255, 0.08);
      --line-bright: rgba(0, 229, 255, 0.4);
      --text-main: #e8edf7;
      --text-muted: #9aa7c0;
      --text-faint: #6d7a94;
      --radius-sm: 10px;
      --radius-md: 16px;
      --radius-lg: 24px;
      --radius-full: 999px;
      --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
      --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.35);
      --shadow-glow: 0 0 24px rgba(0, 229, 255, 0.12);
      --space-section: 90px;
      --font-sans: "Inter", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: var(--font-sans);
      background: var(--bg-base);
      color: var(--text-main);
      line-height: 1.7;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

    body.no-scroll {
      overflow: hidden;
    }

    img {
      max-width: 100%;
      height: auto;
      display: block;
      border-radius: var(--radius-md);
    }

    a {
      color: var(--primary);
      text-decoration: none;
      transition: color 0.25s ease;
    }

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

    ul,
    ol {
      list-style: none;
    }

    button,
    input {
      font-family: inherit;
      border: none;
      outline: none;
      background: none;
      color: inherit;
    }

    .container {
      width: 100%;
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 32px;
    }

    .section {
      padding: var(--space-section) 0;
      position: relative;
    }

    .section-top {
      margin-bottom: 48px;
      text-align: center;
      max-width: 720px;
      margin-left: auto;
      margin-right: auto;
    }

    .section-top .section-label {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(0, 229, 255, 0.08);
      border: 1px solid rgba(0, 229, 255, 0.25);
      color: var(--primary);
      font-size: 13px;
      font-weight: 700;
      letter-spacing: 1px;
      padding: 6px 18px;
      border-radius: var(--radius-full);
      margin-bottom: 18px;
      text-transform: uppercase;
    }

    .section-top h2 {
      font-size: clamp(28px, 4vw, 44px);
      font-weight: 800;
      line-height: 1.3;
      letter-spacing: -0.01em;
      background: linear-gradient(135deg, #fff 20%, rgba(0, 229, 255, 0.7));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .section-top p {
      margin-top: 16px;
      color: var(--text-muted);
      font-size: 16px;
    }

    /* ===== Header ===== */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(10, 14, 26, 0.88);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid rgba(0, 229, 255, 0.08);
      box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 76px;
      gap: 24px;
    }

    .brand {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 22px;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: 0.5px;
      white-space: nowrap;
      transition: opacity 0.2s;
    }

    .brand:hover {
      opacity: 0.85;
      color: var(--text-main);
    }

    .brand i {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 40px;
      height: 40px;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      border-radius: 12px;
      color: #0a0e1a;
      font-size: 18px;
      box-shadow: 0 0 18px rgba(0, 229, 255, 0.35);
    }

    .brand-txt {
      background: linear-gradient(120deg, #fff 30%, var(--primary) 80%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

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

    .main-nav a {
      position: relative;
      color: var(--text-muted);
      font-size: 15px;
      font-weight: 600;
      padding: 10px 14px;
      border-radius: var(--radius-full);
      transition: color 0.25s, background 0.25s, box-shadow 0.25s;
      letter-spacing: 0.2px;
    }

    .main-nav a:hover {
      color: var(--primary);
      background: rgba(0, 229, 255, 0.06);
    }

    .main-nav a.active {
      color: var(--primary);
      background: linear-gradient(135deg, rgba(0, 229, 255, 0.15), rgba(177, 109, 255, 0.12));
      box-shadow: inset 0 0 0 1px rgba(0, 229, 255, 0.3), 0 0 18px rgba(0, 229, 255, 0.08);
      text-shadow: 0 0 12px rgba(0, 229, 255, 0.5);
    }

    .main-nav a.active::after {
      content: "";
      position: absolute;
      left: 18px;
      right: 18px;
      bottom: 4px;
      height: 2px;
      border-radius: var(--radius-full);
      background: var(--primary);
      box-shadow: 0 0 12px var(--primary);
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      font-weight: 700;
      padding: 12px 28px;
      border-radius: var(--radius-full);
      cursor: pointer;
      transition: all 0.25s ease;
      font-size: 15px;
      text-align: center;
      border: 1px solid transparent;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      color: #0a0e1a;
      box-shadow: 0 4px 18px rgba(0, 229, 255, 0.25);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 30px rgba(0, 229, 255, 0.4);
      color: #0a0e1a;
    }

    .btn-outline {
      border-color: rgba(0, 229, 255, 0.5);
      color: var(--primary);
      background: transparent;
    }

    .btn-outline:hover {
      background: rgba(0, 229, 255, 0.1);
      transform: translateY(-2px);
      border-color: var(--primary);
    }

    .btn-sm {
      padding: 8px 18px;
      font-size: 14px;
    }

    /* 汉堡按钮 */
    .hamburger-btn {
      display: none;
      width: 44px;
      height: 44px;
      border-radius: 12px;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.12);
      align-items: center;
      justify-content: center;
      cursor: pointer;
      z-index: 120;
      flex-shrink: 0;
    }

    .hamburger-btn:hover {
      background: rgba(255, 255, 255, 0.1);
    }

    .hamburger-btn span {
      display: block;
      width: 18px;
      height: 2px;
      background: var(--text-main);
      border-radius: 4px;
      transition: all 0.3s;
      margin: 2px 0;
    }

    .hamburger-btn.active span:nth-child(1) {
      transform: translateY(6px) rotate(45deg);
    }

    .hamburger-btn.active span:nth-child(2) {
      opacity: 0;
    }

    .hamburger-btn.active span:nth-child(3) {
      transform: translateY(-6px) rotate(-45deg);
    }

    /* 移动端导航 */
    .mobile-nav {
      position: fixed;
      top: 76px;
      left: 0;
      right: 0;
      background: rgba(10, 14, 26, 0.98);
      backdrop-filter: blur(20px);
      padding: 24px 20px 32px;
      border-bottom: 1px solid var(--line);
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
      transform: translateY(-16px);
      opacity: 0;
      visibility: hidden;
      transition: all 0.3s ease;
      z-index: 110;
      border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    }

    .mobile-nav a {
      display: block;
      padding: 14px 16px;
      color: var(--text-muted);
      font-size: 16px;
      font-weight: 600;
      border-radius: var(--radius-md);
      margin-bottom: 6px;
      transition: background 0.25s, color 0.25s;
    }

    .mobile-nav a:hover {
      background: rgba(255, 255, 255, 0.06);
      color: var(--primary);
    }

    .mobile-nav a.active {
      color: var(--primary);
      background: linear-gradient(135deg, rgba(0, 229, 255, 0.15), rgba(177, 109, 255, 0.12));
      border-left: 3px solid var(--primary);
    }

    /* ===== Banner ===== */
    .category-banner {
      position: relative;
      padding: 110px 0 80px;
      background: linear-gradient(135deg, #0a0e1a 0%, #16213a 55%, #0d1b2a 100%);
      text-align: center;
      isolation: isolate;
      overflow: hidden;
    }

    .category-banner::before {
      content: "";
      position: absolute;
      inset: 0;
      background: url("/assets/images/backpic/back-2.png") center/cover no-repeat;
      opacity: 0.35;
      z-index: -1;
    }

    .category-banner::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(10, 14, 26, 0.5), rgba(10, 14, 26, 0.9));
      z-index: -1;
    }

    .category-banner .banner-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(0, 229, 255, 0.1);
      border: 1px solid rgba(0, 229, 255, 0.3);
      border-radius: var(--radius-full);
      color: var(--primary);
      padding: 8px 20px;
      font-size: 14px;
      font-weight: 700;
      letter-spacing: 1px;
      margin-bottom: 20px;
    }

    .category-banner h1 {
      font-size: clamp(32px, 5.5vw, 56px);
      font-weight: 900;
      letter-spacing: -0.02em;
      line-height: 1.2;
      margin-bottom: 18px;
      background: linear-gradient(135deg, #fff 25%, var(--primary) 80%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .category-banner p {
      font-size: 18px;
      color: var(--text-muted);
      max-width: 760px;
      margin: 0 auto 28px;
      line-height: 1.8;
    }

    .banner-links {
      display: flex;
      justify-content: center;
      gap: 14px;
      flex-wrap: wrap;
      margin-top: 12px;
    }

    /* ===== Hero Sub ===== */
    .feature-strip {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 60px;
    }

    .feature-item {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      padding: 20px 16px;
      display: flex;
      align-items: center;
      gap: 14px;
      text-align: left;
      transition: all 0.3s;
    }

    .feature-item:hover {
      background: rgba(0, 229, 255, 0.06);
      border-color: var(--line-bright);
      transform: translateY(-2px);
    }

    .feature-item i {
      font-size: 24px;
      color: var(--primary);
      flex-shrink: 0;
    }

    .feature-item strong {
      display: block;
      font-size: 15px;
      margin-bottom: 2px;
    }

    .feature-item span {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* ===== Cards Grid ===== */
    .content-card {
      background: var(--bg-card);
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--line);
      transition: all 0.35s ease;
      height: 100%;
      display: flex;
      flex-direction: column;
    }

    .content-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-md), var(--shadow-glow);
      border-color: var(--line-bright);
    }

    .card-top {
      position: relative;
      height: 210px;
      overflow: hidden;
    }

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

    .content-card:hover .card-top img {
      transform: scale(1.05);
    }

    .card-tag {
      position: absolute;
      top: 16px;
      left: 16px;
      background: rgba(10, 14, 26, 0.85);
      border: 1px solid rgba(0, 229, 255, 0.3);
      backdrop-filter: blur(6px);
      color: var(--primary);
      font-size: 13px;
      font-weight: 700;
      padding: 6px 16px;
      border-radius: var(--radius-full);
      letter-spacing: 0.3px;
    }

    .card-pinned {
      position: absolute;
      top: 16px;
      right: 16px;
      background: rgba(255, 209, 102, 0.15);
      border: 1px solid rgba(255, 209, 102, 0.3);
      color: var(--accent);
      border-radius: var(--radius-full);
      font-size: 13px;
      padding: 6px 14px;
      font-weight: 700;
    }

    .card-body {
      padding: 24px;
      display: flex;
      flex-direction: column;
      flex: 1;
    }

    .card-body h3 {
      font-size: 20px;
      font-weight: 800;
      line-height: 1.4;
      margin-bottom: 12px;
    }

    .card-body h3 a {
      color: var(--text-main);
      transition: color 0.2s;
    }

    .card-body h3 a:hover {
      color: var(--primary);
    }

    .card-body p {
      color: var(--text-muted);
      font-size: 15px;
      line-height: 1.75;
      flex: 1;
      display: -webkit-box;
      -webkit-line-clamp: 3;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .card-meta {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-top: 20px;
      padding-top: 16px;
      border-top: 1px solid var(--line);
      font-size: 13px;
      color: var(--text-faint);
    }

    .card-meta .meta-left {
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .card-meta a {
      color: var(--primary);
      font-weight: 600;
      font-size: 14px;
    }

    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    /* ===== Tools Section ===== */
    .tools-section {
      background: linear-gradient(135deg, rgba(0, 229, 255, 0.04), rgba(177, 109, 255, 0.04));
    }

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

    .tool-item {
      background: var(--bg-card);
      border-radius: var(--radius-md);
      border: 1px solid var(--line);
      padding: 28px 24px;
      text-align: center;
      transition: all 0.3s;
      position: relative;
      overflow: hidden;
    }

    .tool-item::before {
      content: "";
      position: absolute;
      top: 0;
      left: 50%;
      transform: translateX(-50%);
      width: 60%;
      height: 3px;
      background: linear-gradient(90deg, var(--primary), var(--secondary));
      border-radius: var(--radius-full);
      opacity: 0;
      transition: opacity 0.3s;
    }

    .tool-item:hover::before {
      opacity: 1;
    }

    .tool-item:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: var(--line-bright);
    }

    .tool-item .tool-icon {
      width: 56px;
      height: 56px;
      border-radius: 16px;
      background: linear-gradient(135deg, rgba(0, 229, 255, 0.15), rgba(177, 109, 255, 0.15));
      display: inline-flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 16px;
      font-size: 24px;
      color: var(--primary);
    }

    .tool-item h3 {
      font-size: 17px;
      font-weight: 800;
      margin-bottom: 8px;
    }

    .tool-item p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* ===== Spotlight Section ===== */
    .spotlight-grid {
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 40px;
      align-items: center;
    }

    .spotlight-media {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
    }

    .spotlight-media img {
      width: 100%;
      height: 420px;
      object-fit: cover;
    }

    .spotlight-media .media-tag {
      position: absolute;
      bottom: 20px;
      left: 20px;
      background: rgba(0, 229, 255, 0.9);
      color: #0a0e1a;
      font-weight: 800;
      font-size: 14px;
      padding: 8px 18px;
      border-radius: var(--radius-full);
    }

    .spotlight-text .section-label {
      display: inline-block;
      background: rgba(0, 229, 255, 0.08);
      border: 1px solid rgba(0, 229, 255, 0.25);
      color: var(--primary);
      font-size: 13px;
      font-weight: 700;
      letter-spacing: 1px;
      padding: 6px 16px;
      border-radius: var(--radius-full);
      margin-bottom: 14px;
    }

    .spotlight-text h2 {
      font-size: clamp(28px, 4vw, 40px);
      font-weight: 900;
      line-height: 1.3;
      margin-bottom: 18px;
      letter-spacing: -0.01em;
    }

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

    .spotlight-list {
      margin: 24px 0;
    }

    .spotlight-list li {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      padding: 10px 0;
      color: var(--text-muted);
      font-size: 15px;
    }

    .spotlight-list li i {
      color: var(--primary);
      margin-top: 4px;
    }

    /* ===== Stats ===== */
    .stats-band {
      background: linear-gradient(135deg, rgba(0, 229, 255, 0.08), rgba(177, 109, 255, 0.08));
      border-radius: var(--radius-lg);
      padding: 50px 40px;
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 32px;
      text-align: center;
      border: 1px solid var(--line);
    }

    .stat-num {
      font-size: 44px;
      font-weight: 900;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      line-height: 1.2;
    }

    .stat-label {
      color: var(--text-muted);
      margin-top: 8px;
      font-size: 15px;
    }

    /* ===== FAQ ===== */
    .faq-grid {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .faq-item {
      background: var(--bg-card);
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      padding: 0;
      overflow: hidden;
      transition: border-color 0.3s;
    }

    .faq-item:hover {
      border-color: var(--line-bright);
    }

    .faq-question {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 22px 26px;
      cursor: pointer;
      font-weight: 700;
      font-size: 16px;
    }

    .faq-question i {
      color: var(--primary);
      transition: transform 0.4s ease;
      flex-shrink: 0;
    }

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

    .faq-answer {
      padding: 0 26px;
      max-height: 0;
      opacity: 0;
      overflow: hidden;
      transition: max-height 0.4s ease, padding 0.3s ease, opacity 0.3s ease;
      color: var(--text-muted);
      font-size: 15px;
      line-height: 1.8;
    }

    .faq-item.open .faq-answer {
      opacity: 1;
      max-height: 300px;
      padding-bottom: 24px;
    }

    /* ===== Picks ===== */
    .picks-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
    }

    .pick-card {
      background: var(--bg-card);
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      padding: 24px;
      display: flex;
      gap: 18px;
      align-items: flex-start;
      transition: all 0.3s;
    }

    .pick-card:hover {
      border-color: var(--line-bright);
      box-shadow: var(--shadow-sm);
      transform: translateX(4px);
    }

    .pick-num {
      font-size: 36px;
      font-weight: 900;
      line-height: 1;
      color: transparent;
      -webkit-text-stroke: 1px var(--primary);
      flex-shrink: 0;
    }

    .pick-card h4 {
      font-weight: 800;
      font-size: 18px;
      margin-bottom: 6px;
    }

    .pick-card p {
      color: var(--text-muted);
      font-size: 14px;
      line-height: 1.7;
    }

    /* ===== CTA ===== */
    .cta-section {
      background: linear-gradient(135deg, rgba(0, 229, 255, 0.12), rgba(177, 109, 255, 0.1));
      border-radius: var(--radius-lg);
      padding: 60px 50px;
      text-align: center;
      border: 1px solid var(--line-bright);
    }

    .cta-section h2 {
      font-size: clamp(28px, 4vw, 42px);
      font-weight: 900;
      margin-bottom: 16px;
      letter-spacing: -0.01em;
    }

    .cta-section p {
      color: var(--text-muted);
      font-size: 16px;
      max-width: 560px;
      margin: 0 auto 30px;
    }

    .cta-form {
      display: flex;
      max-width: 480px;
      margin: 0 auto;
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid var(--line);
      border-radius: var(--radius-full);
      padding: 6px;
      gap: 6px;
      transition: border-color 0.3s;
    }

    .cta-form:focus-within {
      border-color: var(--primary);
      box-shadow: 0 0 20px rgba(0, 229, 255, 0.1);
    }

    .cta-form input {
      flex: 1;
      padding: 10px 20px;
      background: transparent;
      border-radius: var(--radius-full);
      color: var(--text-main);
      font-size: 15px;
    }

    .cta-form input::placeholder {
      color: var(--text-faint);
    }

    .cta-form .btn {
      border-radius: var(--radius-full);
      padding: 10px 24px;
    }

    /* ===== Footer ===== */
    .site-footer {
      background: var(--bg-deep);
      border-top: 1px solid rgba(0, 229, 255, 0.08);
      padding: 60px 0 0;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr;
      gap: 48px;
      padding-bottom: 40px;
      border-bottom: 1px solid var(--line);
    }

    .footer-brand .brand {
      margin-bottom: 16px;
    }

    .footer-brand p {
      color: var(--text-muted);
      font-size: 15px;
      line-height: 1.8;
      max-width: 420px;
    }

    .footer-col h4 {
      color: #fff;
      font-size: 16px;
      font-weight: 800;
      margin-bottom: 20px;
      position: relative;
      padding-bottom: 10px;
    }

    .footer-col h4::after {
      content: "";
      position: absolute;
      left: 0;
      bottom: 0;
      width: 30px;
      height: 2px;
      background: var(--primary);
      border-radius: var(--radius-full);
      box-shadow: 0 0 8px var(--primary);
    }

    .footer-col ul li {
      margin-bottom: 12px;
    }

    .footer-col ul li a {
      color: var(--text-muted);
      font-size: 15px;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      transition: all 0.25s;
    }

    .footer-col ul li a i {
      font-size: 12px;
      color: var(--text-faint);
      transition: transform 0.25s, color 0.25s;
    }

    .footer-col ul li a:hover {
      color: var(--primary);
    }

    .footer-col ul li a:hover i {
      transform: translateX(4px);
      color: var(--primary);
    }

    .footer-bottom {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 24px 0;
      gap: 16px;
      flex-wrap: wrap;
    }

    .footer-copyright {
      color: var(--text-faint);
      font-size: 14px;
    }

    .footer-bottom-links {
      display: flex;
      gap: 24px;
    }

    .footer-bottom-links a {
      color: var(--text-muted);
      font-size: 14px;
      transition: color 0.2s;
    }

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

    /* ===== Responsive ===== */
    @media (max-width: 1024px) {
      .feature-strip {
        grid-template-columns: repeat(2, 1fr);
      }
      .tools-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .grid-3 {
        grid-template-columns: repeat(2, 1fr);
      }
      .spotlight-grid {
        grid-template-columns: 1fr;
      }
      .spotlight-media img {
        height: 320px;
      }
      .picks-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
      }
    }

    @media (max-width: 900px) {
      .desktop-nav {
        display: none;
      }
      .hamburger-btn {
        display: inline-flex;
      }
      .header-actions .btn-desktop {
        display: none;
      }
      .mobile-nav.show {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
      }
      .container {
        padding: 0 20px;
      }
      .section {
        padding: 64px 0;
      }
    }

    @media (max-width: 640px) {
      .feature-strip {
        grid-template-columns: 1fr;
      }
      .tools-grid {
        grid-template-columns: 1fr;
      }
      .grid-3 {
        grid-template-columns: 1fr;
      }
      .stats-band {
        grid-template-columns: 1fr;
        padding: 40px 24px;
      }
      .cta-section {
        padding: 40px 24px;
      }
      .category-banner {
        padding: 80px 0 56px;
      }
      .category-banner p {
        font-size: 16px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
      }
      .footer-bottom {
        flex-direction: column;
        justify-content: center;
        text-align: center;
      }
      .footer-bottom-links {
        gap: 18px;
      }
      .brand-txt {
        font-size: 19px;
      }
      .brand i {
        width: 36px;
        height: 36px;
        font-size: 16px;
      }
      .header-inner {
        height: 66px;
      }
    }

    @media (max-width: 480px) {
      .container {
        padding: 0 16px;
      }
      .brand-txt {
        font-size: 17px;
      }
      .brand {
        gap: 8px;
      }
      .brand-txt {
        max-width: 170px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
      }
      .section-top h2 {
        font-size: 28px;
      }
    }

    /* ===== Accessible focus ===== */
    a:focus-visible,
    button:focus-visible,
    input:focus-visible {
      outline: 2px solid var(--primary);
      outline-offset: 3px;
      border-radius: 4px;
    }