/* roulang page: index */
:root {
  --primary: #19E3B1;
  --secondary: #FF7A45;
  --bg-dark: #0B0F14;
  --bg-card: #12171D;
  --bg-raised: #1A222B;
  --bg-hover: #212B35;
  --border-color: rgba(255,255,255,0.06);
  --text-main: #FFFFFF;
  --text-body: #C8D0D8;
  --text-muted: #8B96A4;
  --text-disabled: #56606C;
  --radius-lg: 20px;
  --radius-md: 16px;
  --radius-sm: 8px;
  --shadow-card: 0 4px 20px rgba(0,0,0,0.35);
  --shadow-hover: 0 12px 40px rgba(0,0,0,0.55);
  --font-main: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --container-w: 1200px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-main);
  background: var(--bg-dark);
  color: var(--text-body);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: var(--primary); text-decoration: none; transition: color 0.25s ease; }
a:hover { color: var(--primary); }
img { max-width: 100%; display: block; }
button { cursor: pointer; background: none; border: none; font-family: inherit; }
input { font-family: inherit; }
.container { max-width: var(--container-w); margin: 0 auto; padding: 0 24px; }
section { position: relative; }

/* ===== 按钮 ===== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--primary);
  color: #0B0F14;
  border-radius: 999px;
  padding: 14px 32px;
  font-size: 16px;
  font-weight: 600;
  border: none;
  transition: filter 0.25s ease, box-shadow 0.25s ease, transform 0.15s ease;
  white-space: nowrap;
}
.btn-primary:hover {
  filter: brightness(1.08);
  box-shadow: 0 6px 24px rgba(25,227,177,0.28);
  color: #0B0F14;
}
.btn-primary:active { transform: translateY(1px); }
.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255,255,255,0.35);
  border-radius: 999px;
  padding: 14px 32px;
  font-size: 16px;
  font-weight: 500;
  transition: border-color 0.25s ease, color 0.25s ease, transform 0.15s ease, box-shadow 0.25s ease;
  white-space: nowrap;
}
.btn-outline:hover {
  border-color: var(--primary);
  color: #fff;
  box-shadow: 0 4px 20px rgba(25,227,177,0.15);
}
.btn-outline:active { transform: translateY(1px); }
.btn-sm { padding: 10px 24px; font-size: 14px; }
.btn-block { display: flex; width: 100%; }

/* ===== 导航 ===== */
.site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(8,10,12,0.75);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  transition: background 0.3s ease, box-shadow 0.3s ease;
}
.site-nav.scrolled {
  background: rgba(8,10,12,0.92);
  box-shadow: 0 8px 32px rgba(0,0,0,0.45);
}
.nav-inner {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary) 0%, rgba(25,227,177,0.2) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #0B0F14;
  font-size: 20px;
  font-weight: 800;
  position: relative;
  overflow: hidden;
}
.brand-mark::after {
  content: '';
  position: absolute;
  top: -4px; right: -4px;
  width: 16px; height: 16px;
  background: var(--secondary);
  border-radius: 50%;
  opacity: 0.65;
}
.brand-text {
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.5px;
  white-space: nowrap;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-link {
  color: var(--text-body);
  font-size: 15px;
  font-weight: 500;
  padding: 6px 0;
  position: relative;
  white-space: nowrap;
  transition: color 0.25s ease;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0; left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width 0.3s ease;
  border-radius: 2px;
}
.nav-link:hover { color: #fff; }
.nav-link:hover::after { width: 100%; }
.nav-link.active { color: #fff; }
.nav-link.active::after { width: 100%; }
.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}
.nav-search-toggle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-body);
  font-size: 16px;
  transition: background 0.25s ease, color 0.25s ease;
}
.nav-search-toggle:hover { background: rgba(25,227,177,0.15); color: var(--primary); }
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px 10px;
  border-radius: 8px;
  background: rgba(255,255,255,0.06);
}
.hamburger span {
  display: block;
  height: 2px;
  width: 100%;
  background: #fff;
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

/* ===== 移动端菜单 ===== */
.mobile-menu-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 1100;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.mobile-menu-overlay.open { opacity: 1; pointer-events: auto; }
.mobile-menu {
  position: fixed;
  top: 0; right: 0;
  width: min(86vw, 360px);
  height: 100vh;
  background: var(--bg-dark);
  z-index: 1200;
  transform: translateX(100%);
  transition: transform 0.35s ease;
  display: flex;
  flex-direction: column;
  border-left: 1px solid var(--border-color);
}
.mobile-menu.open { transform: translateX(0); }
.mobile-menu-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-color);
}
.mobile-menu-header .brand-text { font-size: 17px; }
.mobile-menu-close {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
}
.mobile-menu-links {
  flex: 1;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  overflow-y: auto;
}
.mobile-link {
  display: block;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  color: var(--text-body);
  font-size: 15px;
  font-weight: 500;
  transition: background 0.25s ease, color 0.25s ease;
}
.mobile-link:hover { background: var(--bg-raised); color: #fff; }
.mobile-link.active { background: rgba(25,227,177,0.1); color: var(--primary); }
.mobile-menu-footer {
  padding: 20px 24px;
  border-top: 1px solid var(--border-color);
}
.mobile-menu-footer p {
  color: var(--text-muted);
  font-size: 13px;
  text-align: center;
  margin-top: 12px;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 92vh;
  min-height: 560px;
  display: flex;
  align-items: center;
  padding: 120px 0 60px;
  background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
  isolation: isolate;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(5,8,10,0.92) 0%, rgba(5,8,10,0.65) 40%, transparent 75%);
  z-index: -1;
}
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 75% 30%, rgba(25,227,177,0.12) 0%, transparent 50%),
    radial-gradient(circle at 85% 75%, rgba(255,122,69,0.1) 0%, transparent 40%);
  z-index: -1;
}
.hero-content {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border-radius: 999px;
  background: rgba(25,227,177,0.12);
  border: 1px solid rgba(25,227,177,0.4);
  color: var(--primary);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.5px;
  margin-bottom: 24px;
}
.hero-badge i { font-size: 12px; }
.hero h1 {
  font-size: clamp(40px, 6vw, 72px);
  font-weight: 800;
  line-height: 1.15;
  color: #fff;
  max-width: 680px;
  margin-bottom: 20px;
  letter-spacing: -1px;
}
.hero-sub {
  font-size: clamp(16px, 1.6vw, 18px);
  color: var(--text-body);
  max-width: 560px;
  margin-bottom: 36px;
  line-height: 1.8;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.hero-scroll {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
}
.hero-scroll i { font-size: 14px; animation: bounce 2s infinite; }
@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(6px); }
}

/* ===== 数据条 ===== */
.stats-bar {
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
  border-top: 1px solid var(--border-color);
  padding-top: 28px;
  margin-top: 48px;
}
.stat-item {
  display: flex;
  align-items: center;
  gap: 12px;
}
.stat-num {
  font-size: 28px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
}
.stat-label {
  font-size: 14px;
  color: var(--text-muted);
}

/* ===== 板块通用 ===== */
.section { padding: 96px 0; }
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 40px;
  gap: 20px;
  flex-wrap: wrap;
}
.section-head h2 {
  font-size: clamp(28px, 3.6vw, 40px);
  font-weight: 700;
  color: #fff;
  line-height: 1.25;
}
.section-head .sub { color: var(--text-muted); margin-top: 6px; font-size: 15px; }
.section-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  transition: gap 0.25s ease;
}
.section-more:hover { gap: 10px; color: var(--primary); }

/* ===== 横滑片库 ===== */
.swipe-section { padding-top: 80px; }
.swipe-row {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-bottom: 16px;
  scrollbar-width: none;
}
.swipe-row::-webkit-scrollbar { display: none; }
.swipe-card {
  flex: 0 0 min(280px, 78vw);
  scroll-snap-align: start;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-color);
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.swipe-card:hover {
  transform: translateY(-6px);
  border-color: rgba(25,227,177,0.5);
  box-shadow: var(--shadow-hover);
}
.swipe-cover {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
}
.swipe-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.swipe-card:hover .swipe-cover img { transform: scale(1.04); }
.badge-hot, .badge-new {
  position: absolute;
  top: 12px; left: 12px;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  color: #fff;
  z-index: 2;
}
.badge-hot { background: var(--secondary); }
.badge-new { background: var(--primary); color: #0B0F14; }
.swipe-info { padding: 16px 18px 20px; }
.swipe-info h3 {
  color: #fff;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 4px;
}
.swipe-info p {
  color: var(--text-muted);
  font-size: 13px;
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.swipe-arrows {
  display: flex;
  gap: 8px;
}
.swipe-arrows button {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg-raised);
  border: 1px solid var(--border-color);
  color: var(--text-body);
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.25s ease, color 0.25s ease;
}
.swipe-arrows button:hover { background: rgba(25,227,177,0.15); color: var(--primary); }

/* ===== 热播推荐 ===== */
.hot-section { background: var(--bg-dark); }
.hot-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 24px;
  align-items: stretch;
}
.hot-card {
  position: relative;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  overflow: hidden;
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.hot-card:hover {
  transform: translateY(-6px);
  border-color: rgba(25,227,177,0.5);
  box-shadow: var(--shadow-hover);
}
.hot-card-main { min-height: 420px; display: flex; }
.hot-card-main .hot-cover { flex: 1; position: relative; }
.hot-card-main .hot-cover img { width: 100%; height: 100%; object-fit: cover; }
.hot-card-main .hot-body {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 24px;
  background: linear-gradient(0deg, rgba(5,8,10,0.95) 0%, transparent 100%);
  color: #fff;
}
.hot-card-main .hot-body h3 { font-size: 22px; font-weight: 700; margin-bottom: 6px; }
.hot-card-main .hot-body p { font-size: 14px; color: var(--text-body); max-width: 340px; }
.hot-col { display: flex; flex-direction: column; gap: 24px; }
.hot-card-sub {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px;
  height: calc(50% - 12px);
}
.hot-card-sub .hot-cover {
  width: 120px;
  height: 84px;
  border-radius: 12px;
  overflow: hidden;
  flex-shrink: 0;
}
.hot-card-sub .hot-cover img { width: 100%; height: 100%; object-fit: cover; }
.hot-card-sub .hot-body { flex: 1; }
.hot-card-sub .hot-body h3 { font-size: 16px; font-weight: 600; color: #fff; margin-bottom: 4px; }
.hot-card-sub .hot-body p { font-size: 13px; color: var(--text-muted); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.hot-rank {
  position: absolute;
  top: 12px; left: 12px;
  font-size: 64px;
  font-weight: 200;
  color: rgba(255,255,255,0.22);
  line-height: 1;
  z-index: 2;
  pointer-events: none;
  letter-spacing: -2px;
}

/* ===== 片单 Tab ===== */
.tab-section { background: var(--bg-dark); }
.tab-btns {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.tab-btn {
  padding: 10px 22px;
  border-radius: 999px;
  background: transparent;
  border: 1px solid rgba(255,255,255,0.16);
  color: var(--text-body);
  font-size: 14px;
  font-weight: 500;
  transition: all 0.3s ease;
}
.tab-btn:hover { border-color: rgba(25,227,177,0.6); color: #fff; }
.tab-btn.active { background: var(--primary); border-color: var(--primary); color: #0B0F14; font-weight: 600; }
.tab-panel { display: none; margin-top: 32px; }
.tab-panel.active { display: block; animation: fadeSlideIn 0.4s ease; }
@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}
.list-item {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 18px 20px;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  margin-bottom: 14px;
  transition: background 0.3s ease, border-color 0.3s ease, transform 0.2s ease;
}
.list-item:hover {
  background: var(--bg-raised);
  border-color: rgba(25,227,177,0.3);
  transform: translateX(4px);
}
.list-num {
  font-size: 28px;
  font-weight: 200;
  color: rgba(255,255,255,0.18);
  min-width: 42px;
  text-align: center;
}
.list-thumb {
  width: 96px;
  height: 64px;
  border-radius: 8px;
  overflow: hidden;
  flex-shrink: 0;
}
.list-thumb img { width: 100%; height: 100%; object-fit: cover; }
.list-info { flex: 1; min-width: 0; }
.list-info h4 { font-size: 16px; font-weight: 600; color: #fff; margin-bottom: 4px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.list-info p { font-size: 13px; color: var(--text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.list-link {
  font-size: 14px;
  color: var(--primary);
  font-weight: 500;
  white-space: nowrap;
  flex-shrink: 0;
  padding-left: 16px;
  border-left: 1px solid var(--border-color);
}
.list-link:hover { color: var(--primary); }
.tab-more {
  display: flex;
  justify-content: center;
  margin-top: 28px;
}

/* ===== CTA 订阅 ===== */
.subscribe-cta {
  padding: 96px 0;
  background: url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
  position: relative;
  isolation: isolate;
}
.subscribe-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(8,10,12,0.92) 0%, rgba(8,10,12,0.72) 100%);
  z-index: -1;
}
.subscribe-cta::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 30%, rgba(25,227,177,0.12) 0%, transparent 50%), radial-gradient(circle at 80% 70%, rgba(255,122,69,0.08) 0%, transparent 40%);
  z-index: -1;
}
.subscribe-cta .container { position: relative; z-index: 1; }
.cta-inner {
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
}
.cta-inner h2 {
  font-size: clamp(28px, 3.6vw, 40px);
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
}
.cta-inner p {
  color: var(--text-body);
  font-size: 16px;
  margin-bottom: 32px;
}
.cta-form {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}
.cta-form input[type="text"] {
  flex: 1;
  min-width: 220px;
  max-width: 380px;
  height: 48px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.14);
  background: rgba(11,15,20,0.85);
  padding: 0 20px;
  color: #fff;
  font-size: 14px;
  outline: none;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}
.cta-form input[type="text"]::placeholder { color: var(--text-muted); }
.cta-form input[type="text"]:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(25,227,177,0.15);
}

/* ===== 资讯列表 ===== */
.news-section { background: var(--bg-dark); }
.news-list { display: flex; flex-direction: column; gap: 16px; }
.news-item {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 18px 20px;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  transition: background 0.3s ease, border-color 0.3s ease, transform 0.2s ease;
}
.news-item:hover {
  background: var(--bg-raised);
  border-color: rgba(25,227,177,0.3);
  transform: translateY(-2px);
}
.news-thumb {
  width: 100px;
  height: 72px;
  border-radius: 8px;
  overflow: hidden;
  flex-shrink: 0;
}
.news-thumb img { width: 100%; height: 100%; object-fit: cover; }
.news-info { flex: 1; min-width: 0; }
.news-meta { display: flex; align-items: center; gap: 12px; margin-bottom: 4px; }
.news-cat {
  padding: 2px 10px;
  border-radius: 999px;
  background: rgba(25,227,177,0.12);
  color: var(--primary);
  font-size: 12px;
  font-weight: 500;
}
.news-date { font-size: 13px; color: var(--text-muted); }
.news-title {
  font-size: 17px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color 0.2s ease;
}
.news-item:hover .news-title { color: var(--primary); }
.news-excerpt {
  font-size: 13px;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.news-empty {
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-lg);
  padding: 60px 20px;
  text-align: center;
  color: var(--text-muted);
}
.news-empty i { font-size: 32px; margin-bottom: 12px; display: block; color: var(--text-disabled); }
.news-empty p { font-size: 14px; }

/* ===== FAQ ===== */
.faq-section { background: var(--bg-dark); }
.faq-section .section-head { justify-content: center; text-align: center; }
.faq-list { max-width: 760px; margin: 0 auto; }
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color 0.3s ease;
}
.faq-item.active { border-color: rgba(25,227,177,0.4); }
.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 18px 22px;
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  text-align: left;
  transition: color 0.3s ease;
}
.faq-q i {
  font-size: 16px;
  color: var(--text-muted);
  transition: transform 0.3s ease, color 0.3s ease;
  flex-shrink: 0;
}
.faq-item.active .faq-q i { transform: rotate(45deg); color: var(--primary); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
  border-top: 0 solid var(--border-color);
}
.faq-item.active .faq-a { max-height: 400px; border-top-width: 1px; }
.faq-a p {
  padding: 16px 22px 20px;
  font-size: 14px;
  line-height: 1.8;
  background: var(--bg-raised);
  color: var(--text-body);
}

/* ===== 页脚 ===== */
.site-footer {
  background: #070A0D;
  border-top: 1px solid var(--border-color);
  padding: 72px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--border-color);
}
.footer-brand .brand-text { font-size: 20px; }
.footer-brand p {
  color: var(--text-muted);
  font-size: 14px;
  margin-top: 14px;
  line-height: 1.8;
  max-width: 280px;
}
.footer-col h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
}
.footer-col a {
  display: block;
  color: var(--text-muted);
  font-size: 14px;
  margin-bottom: 10px;
  transition: color 0.25s ease, padding-left 0.25s ease;
}
.footer-col a:hover { color: var(--primary); padding-left: 4px; }
.footer-col p { color: var(--text-muted); font-size: 14px; line-height: 1.8; }
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 24px 0 32px;
}
.footer-bottom p { color: var(--text-muted); font-size: 13px; }
.footer-domain { color: var(--text-disabled); font-size: 12px; }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .section { padding: 80px 0; }
  .hot-grid { grid-template-columns: 1fr; }
  .hot-card-main { min-height: 340px; }
  .hot-col { flex-direction: row; }
  .hot-card-sub { height: auto; flex: 1; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-links, .nav-search-toggle { display: none; }
  .hamburger { display: flex; }
  .section { padding: 64px 0; }
  .hero { min-height: 82vh; }
  .hero h1 { font-size: clamp(36px, 8vw, 52px); }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn-primary, .hero-actions .btn-outline { width: 100%; }
  .stats-bar { flex-direction: column; align-items: flex-start; gap: 16px; }
  .hot-col { flex-direction: column; }
  .list-item { flex-wrap: wrap; }
  .list-thumb { width: 80px; height: 56px; }
  .list-link { width: 100%; border-left: none; padding-left: 0; padding-top: 10px; }
  .cta-form { flex-direction: column; }
  .cta-form input[type="text"] { max-width: 100%; width: 100%; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .news-thumb { display: none; }
  .swipe-arrows { display: none; }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .section { padding: 56px 0; }
  .section-head { flex-direction: column; align-items: flex-start; gap: 12px; }
  .hero { min-height: 70vh; }
  .hei { min-height: auto; }
  .hero h1 { font-size: 34px; }
  .hero-badge { font-size: 12px; }
  .hero-sub { font-size: 15px; }
  .news-title { font-size: 15px; }
  .news-excerpt { display: none; }
  .list-info p { display: none; }
  .hot-card-main .hot-body h3 { font-size: 18px; }
  .hot-card-sub { flex-direction: column; align-items: flex-start; }
  .hot-card-sub .hot-cover { width: 100%; height: auto; aspect-ratio: 16/9; }
  .footer-bottom p { font-size: 12px; }
  .faq-q { font-size: 15px; }
}

/* roulang page: category1 */
:root{
  --primary:#19E3B1;
  --accent:#FF7A45;
  --bg:#0B0F14;
  --card:#12171D;
  --card2:#1A222B;
  --surface:#212B35;
  --border:rgba(255,255,255,0.06);
  --border-primary:rgba(25,227,177,0.5);
  --text:#C8D0D8;
  --muted:#8B96A4;
  --disabled:#56606C;
  --white:#FFFFFF;
  --radius-lg:20px;
  --radius-md:16px;
  --radius-sm:12px;
  --shadow:0 4px 20px rgba(0,0,0,0.35);
  --shadow-hover:0 12px 40px rgba(0,0,0,0.55);
  --container:1200px;
  --space:96px;
  --font:"Noto Sans SC","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  background:var(--bg);
  color:var(--text);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .3s ease}
button{font-family:inherit;border:none;background:none;cursor:pointer;color:inherit}
input{font-family:inherit}
.container{max-width:var(--container);margin:0 auto;padding:0 24px;width:100%}
.grid-container{max-width:var(--container);padding:0}

/* ===== 导航 ===== */
.site-nav{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(8,10,12,0.75);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
  transition:background .4s ease,box-shadow .4s ease;
}
.site-nav.scrolled{
  background:rgba(8,10,12,0.92);
  box-shadow:0 8px 32px rgba(0,0,0,0.45);
}
.nav-inner{
  max-width:var(--container);margin:0 auto;padding:0 24px;
  display:flex;align-items:center;justify-content:space-between;height:72px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:10px;
  background:linear-gradient(135deg,var(--primary) 0%,#0ea37e 100%);
  color:#08131f;font-size:20px;font-weight:800;
  display:flex;align-items:center;justify-content:center;
  letter-spacing:-1px;box-shadow:0 0 18px rgba(25,227,177,0.3);
}
.brand-text{font-size:19px;font-weight:700;color:var(--white);letter-spacing:0.5px}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--muted);
  padding:8px 2px;transition:color .3s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;
  background:var(--primary);border-radius:2px;transition:width .3s ease;
}
.nav-link:hover{color:var(--white)}
.nav-link:hover::after{width:100%}
.nav-link.active{color:var(--white)}
.nav-link.active::after{width:100%;background:var(--primary)}
.nav-actions{display:flex;align-items:center;gap:16px}
.nav-search-toggle{
  width:38px;height:38px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  color:var(--muted);font-size:16px;border:1px solid var(--border);
  transition:all .3s ease;
}
.nav-search-toggle:hover{color:var(--primary);border-color:var(--border-primary)}
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--primary);color:#08131f;font-size:15px;font-weight:600;
  padding:12px 28px;border-radius:999px;transition:all .3s ease;
  border:1px solid transparent;
}
.btn-primary:hover{filter:brightness(1.08);box-shadow:0 8px 24px rgba(25,227,177,0.35);color:#08131f}
.btn-primary:active{transform:translateY(1px)}
.btn-sm{padding:9px 22px;font-size:14px}
.btn-secondary{
  display:inline-flex;align-items:center;justify-content:center;
  background:transparent;color:var(--white);font-size:15px;font-weight:500;
  padding:12px 28px;border-radius:999px;border:1px solid rgba(255,255,255,0.25);
  transition:all .3s ease;
}
.btn-secondary:hover{border-color:var(--primary);color:var(--white);box-shadow:0 0 20px rgba(25,227,177,0.15)}
.btn-secondary:active{transform:translateY(1px)}
.hamburger{
  display:none;flex-direction:column;gap:5px;width:40px;height:40px;
  align-items:center;justify-content:center;border-radius:8px;
  border:1px solid var(--border);
}
.hamburger span{width:18px;height:2px;background:var(--white);border-radius:2px;transition:all .3s ease}
.hamburger.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger.active span:nth-child(2){opacity:0}
.hamburger.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 搜索面板 */
.search-panel{
  position:fixed;top:72px;left:0;right:0;z-index:999;
  background:rgba(8,10,12,0.96);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
  padding:20px 0;display:none;
}
.search-panel.open{display:block}
.search-inner{max-width:720px;margin:0 auto;padding:0 24px;display:flex;gap:12px}
.search-inner input{
  flex:1;height:48px;background:var(--card);border:1px solid var(--border);
  border-radius:999px;color:var(--white);padding:0 20px;font-size:15px;outline:none;
  transition:border-color .3s ease;
}
.search-inner input:focus{border-color:var(--primary)}

/* 移动端导航抽屉 */
.mobile-menu{
  position:fixed;top:0;right:-360px;width:min(86vw,360px);height:100vh;z-index:1100;
  background:#0B0F14;border-left:1px solid var(--border);
  display:flex;flex-direction:column;padding:24px;gap:8px;
  transition:right .4s cubic-bezier(0.16,1,0.3,1);
  box-shadow:-12px 0 40px rgba(0,0,0,0.5);
}
.mobile-menu.open{right:0}
.mobile-menu .brand{margin-bottom:24px}
.mobile-menu .nav-link{display:block;padding:14px 10px;font-size:16px;border-radius:10px;border-bottom:1px solid var(--border)}
.mobile-menu .nav-link:hover{background:var(--card)}
.mobile-menu .nav-link.active{color:var(--primary);background:rgba(25,227,177,0.08)}
.mobile-menu .btn-primary{margin-top:16px;width:100%}
.mobile-menu .mobile-copyright{
  margin-top:auto;padding-top:20px;border-top:1px solid var(--border);
  font-size:13px;color:var(--disabled);
}
.mobile-overlay{
  position:fixed;top:0;left:0;right:0;bottom:0;z-index:1050;
  background:rgba(0,0,0,0.6);backdrop-filter:blur(3px);opacity:0;
  pointer-events:none;transition:opacity .4s ease;
}
.mobile-overlay.open{opacity:1;pointer-events:auto}

/* ===== Hero ===== */
.page-hero{
  position:relative;min-height:560px;height:92vh;
  display:flex;align-items:center;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(5,8,10,0.92) 0%,rgba(5,8,10,0.65) 40%,transparent 75%);
}
.page-hero::after{
  content:"";position:absolute;width:500px;height:500px;border-radius:50%;
  background:radial-gradient(circle,rgba(25,227,177,0.18),transparent 70%);
  top:-100px;right:-100px;pointer-events:none;
}
.page-hero-inner{position:relative;z-index:2;max-width:var(--container);margin:0 auto;padding:0 24px;width:100%}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:500;color:var(--primary);
  background:rgba(25,227,177,0.1);border:1px solid rgba(25,227,177,0.3);
  padding:6px 16px;border-radius:999px;margin-bottom:24px;
  letter-spacing:0.3px;
}
.page-hero h1{
  font-size:clamp(40px,6vw,72px);font-weight:800;line-height:1.15;
  color:var(--white);margin-bottom:20px;
}
.hero-sub{
  font-size:clamp(17px,2vw,22px);line-height:1.7;color:var(--text);
  max-width:520px;margin-bottom:36px;
}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.hero-meta{
  display:flex;gap:32px;margin-top:48px;flex-wrap:wrap;
}
.hero-meta-item{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:14px}
.hero-meta-item i{color:var(--primary);font-size:18px}

/* ===== 板块通用 ===== */
.section{padding:var(--space) 0}
.section-tag{
  display:inline-block;font-size:13px;font-weight:600;color:var(--primary);
  letter-spacing:1px;margin-bottom:12px;text-transform:uppercase;
}
.section-title{
  font-size:clamp(28px,3.6vw,44px);font-weight:700;color:var(--white);
  line-height:1.25;margin-bottom:16px;
}
.section-sub{font-size:16px;color:var(--muted);max-width:640px;line-height:1.75}

/* ===== 介绍区 左文右图 ===== */
.intro-section{
  padding:var(--space) 0;background:var(--bg);
  position:relative;
}
.intro-section::before{
  content:"";position:absolute;width:400px;height:400px;border-radius:50%;
  background:radial-gradient(circle,rgba(25,227,177,0.08),transparent 70%);
  bottom:-120px;left:-120px;pointer-events:none;
}
.intro-content h2{font-size:clamp(28px,3.6vw,42px);font-weight:700;color:var(--white);line-height:1.3;margin-bottom:20px}
.intro-content p{font-size:16px;line-height:1.8;color:var(--text);margin-bottom:16px}
.intro-list{list-style:none;margin:20px 0 0;padding:0}
.intro-list li{
  display:flex;gap:12px;padding:10px 0;font-size:15px;color:var(--text);
  border-bottom:1px solid var(--border);
}
.intro-list li:last-child{border-bottom:none}
.intro-list i{color:var(--primary);margin-top:4px;font-size:16px}
.intro-image{position:relative}
.intro-image img{
  width:100%;border-radius:var(--radius-lg);
  box-shadow:var(--shadow);border:1px solid var(--border);
  aspect-ratio:4/3;object-fit:cover;
}
.intro-image::after{
  content:"";position:absolute;inset:0;border-radius:var(--radius-lg);
  background:linear-gradient(180deg,transparent 60%,rgba(5,8,10,0.4));
  pointer-events:none;
}

/* ===== 三张横向卡片 ===== */
.feature-cards{padding:var(--space) 0;background:var(--card);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.feature-cards-header{text-align:center;margin-bottom:56px}
.feature-cards-header .section-sub{margin:0 auto}
.feature-card-h{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-md);
  overflow:hidden;display:flex;flex-direction:column;height:100%;
  transition:transform .35s ease,box-shadow .35s ease,border-color .35s ease;
}
.feature-card-h:hover{
  transform:translateY(-6px);box-shadow:var(--shadow-hover);
  border-color:var(--border-primary);
}
.feature-card-h .card-img{overflow:hidden;position:relative;aspect-ratio:16/9}
.feature-card-h .card-img img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.feature-card-h:hover .card-img img{transform:scale(1.04)}
.feature-card-h .card-img .badge{
  position:absolute;top:12px;left:12px;z-index:2;
  font-size:12px;font-weight:600;padding:4px 12px;border-radius:999px;
  background:rgba(25,227,177,0.9);color:#08131f;
}
.feature-card-h .card-body{padding:24px;display:flex;flex-direction:column;flex:1}
.feature-card-h h3{font-size:20px;font-weight:600;color:var(--white);margin-bottom:10px}
.feature-card-h p{font-size:14px;line-height:1.7;color:var(--muted);flex:1}
.feature-card-h .card-link{
  margin-top:16px;font-size:14px;font-weight:600;color:var(--primary);
  display:inline-flex;align-items:center;gap:6px;
}
.feature-card-h .card-link i{transition:transform .3s ease}
.feature-card-h .card-link:hover i{transform:translateX(4px)}

/* ===== 适用场景 ===== */
.scenario-section{padding:var(--space) 0;background:var(--bg);position:relative}
.scenario-section::before{
  content:"";position:absolute;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,69,0.07),transparent 70%);
  top:80px;right:-120px;pointer-events:none;
}
.scenario-grid .scenario-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-md);
  padding:28px 24px;height:100%;transition:all .3s ease;
}
.scenario-card:hover{border-color:var(--border-primary);transform:translateY(-4px);box-shadow:var(--shadow)}
.scenario-card .sc-icon{
  width:52px;height:52px;border-radius:14px;
  background:rgba(25,227,177,0.1);display:flex;align-items:center;justify-content:center;
  margin-bottom:18px;font-size:20px;color:var(--primary);
}
.scenario-card h3{font-size:17px;font-weight:600;color:var(--white);margin-bottom:8px}
.scenario-card p{font-size:14px;color:var(--muted);line-height:1.7}

/* ===== 流程 ===== */
.flow-section{
  padding:var(--space) 0;background:var(--card);
  border-top:1px solid var(--border);border-bottom:1px solid var(--border);
}
.flow-step{
  text-align:center;padding:32px 24px;position:relative;
}
.flow-step .step-num{
  font-size:64px;font-weight:700;line-height:1;
  color:rgba(255,255,255,0.08);font-family:Inter,sans-serif;
  display:block;margin-bottom:12px;
}
.flow-step .step-icon{
  width:56px;height:56px;border-radius:50%;
  background:rgba(25,227,177,0.1);color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-size:22px;margin:0 auto 16px;border:1px solid rgba(25,227,177,0.2);
}
.flow-step h3{font-size:18px;font-weight:600;color:var(--white);margin-bottom:10px}
.flow-step p{font-size:14px;color:var(--muted);max-width:260px;margin:0 auto}
.flow-arrow{
  position:absolute;top:50%;right:-20px;color:var(--disabled);
  font-size:20px;transform:translateY(-50%);z-index:2;
}
@media (max-width:640px){
  .flow-arrow{display:none}
}

/* ===== FAQ ===== */
.faq-section{padding:var(--space) 0;background:var(--bg)}
.faq-list{max-width:820px;margin:0 auto}
.faq-item{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-md);
  margin-bottom:14px;overflow:hidden;transition:border-color .3s ease;
}
.faq-item.active{border-color:var(--border-primary)}
.faq-q{
  width:100%;display:flex;justify-content:space-between;align-items:center;
  padding:22px 24px;font-size:16px;font-weight:600;color:var(--white);
  text-align:left;transition:background .3s ease;
}
.faq-q:hover{background:var(--card2)}
.faq-q .faq-icon{
  width:28px;height:28px;border-radius:50%;flex-shrink:0;
  background:rgba(255,255,255,0.06);display:flex;align-items:center;justify-content:center;
  color:var(--muted);font-size:14px;transition:all .3s ease;margin-left:16px;
}
.faq-item.active .faq-icon{
  background:var(--primary);color:#08131f;transform:rotate(45deg);
}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .35s ease;
}
.faq-a-inner{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--muted)}

/* ===== CTA ===== */
.cta-section{
  padding:var(--space) 0;position:relative;overflow:hidden;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.cta-section::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(5,8,10,0.94) 0%,rgba(5,8,10,0.8) 50%,rgba(5,8,10,0.9) 100%);
}
.cta-section::after{
  content:"";position:absolute;width:500px;height:500px;border-radius:50%;
  background:radial-gradient(circle,rgba(25,227,177,0.14),transparent 70%);
  top:-120px;right:-100px;pointer-events:none;
}
.cta-inner{position:relative;z-index:2;text-align:center}
.cta-inner h2{font-size:clamp(26px,3.2vw,38px);font-weight:700;color:var(--white);margin-bottom:16px}
.cta-inner .cta-desc{font-size:16px;color:var(--text);max-width:560px;margin:0 auto 32px;line-height:1.75}
.cta-buttons{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.cta-links{
  margin-top:36px;padding-top:24px;border-top:1px solid rgba(255,255,255,0.08);
  display:flex;justify-content:center;gap:32px;flex-wrap:wrap;
}
.cta-links a{font-size:14px;color:var(--muted);display:flex;align-items:center;gap:8px;transition:color .3s ease}
.cta-links a:hover{color:var(--primary)}
.cta-links a i{font-size:16px}

/* ===== 页脚 ===== */
.site-footer{background:#070A0D;border-top:1px solid var(--border);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.footer-brand .brand-text{font-size:20px;font-weight:700;color:var(--white);display:block;margin-bottom:14px}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--muted);max-width:320px}
.footer-col h4{font-size:15px;font-weight:600;color:var(--white);margin-bottom:16px}
.footer-col a{
  display:block;font-size:14px;color:var(--muted);padding:5px 0;transition:color .3s ease;
}
.footer-col a:hover{color:var(--primary)}
.footer-col p{font-size:14px;color:var(--muted);line-height:1.7}
.footer-bottom{
  border-top:1px solid var(--border);padding:24px 0;
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px;
}
.footer-bottom p{font-size:13px;color:var(--disabled)}
.footer-domain{letter-spacing:0.5px}

/* ===== 动画 ===== */
@keyframes fadeUp{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}
.fade-up{animation:fadeUp .7s ease both}
.delay-1{animation-delay:.1s}
.delay-2{animation-delay:.2s}
.delay-3{animation-delay:.3s}

/* ===== 响应式 ===== */
@media (max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr}
  .nav-links{gap:16px}
}
@media (max-width:768px){
  :root{--space:72px}
  .nav-links{display:none}
  .nav-actions .btn-primary{display:none}
  .hamburger{display:flex}
  .page-hero{height:82vh;min-height:520px}
  .hero-actions .btn-primary,.hero-actions .btn-secondary{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;text-align:center}
  .cta-buttons .btn-primary,.cta-buttons .btn-secondary{width:100%}
}
@media (max-width:520px){
  .nav-inner{padding:0 16px;height:64px}
  .brand-text{font-size:16px}
  .brand-mark{width:32px;height:32px;font-size:17px;border-radius:8px}
  .page-hero-inner{padding:0 16px}
  .page-hero h1{font-size:38px}
  .hero-sub{font-size:16px}
  .hero-meta{gap:16px;flex-direction:column}
  .section-title{font-size:26px}
  .feature-card-h .card-body{padding:20px}
  .scenario-card{padding:22px 18px}
  .flow-step{padding:24px 16px}
  .faq-q{padding:18px 16px;font-size:15px}
  .faq-a-inner{padding:0 16px 18px}
  .cta-links{gap:16px;flex-direction:column;align-items:center}
  .intro-image{margin-top:24px}
}

/* roulang page: category2 */
:root{
  --primary:#19E3B1;
  --primary-hover:#10c89c;
  --accent:#FF7A45;
  --accent-hover:#f5662e;
  --bg:#0B0F14;
  --card-bg:#12171D;
  --card-raised:#1A222B;
  --card-hover:#212B35;
  --text-main:#FFFFFF;
  --text-body:#C8D0D8;
  --text-muted:#8B96A4;
  --text-disabled:#56606C;
  --border:rgba(255,255,255,0.06);
  --border-hover:rgba(25,227,177,0.5);
  --radius-lg:20px;
  --radius-md:16px;
  --radius-sm:8px;
  --shadow-sm:0 4px 20px rgba(0,0,0,0.35);
  --shadow-lg:0 12px 40px rgba(0,0,0,0.55);
  --header-h:68px;
  --section-pad:96px 0;
  --max-w:1200px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html,body{scroll-behavior:smooth;}
body{
  font-family:"Noto Sans SC","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--bg);
  color:var(--text-body);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .25s ease;}
a:hover{color:var(--primary);}
button{font-family:inherit;cursor:pointer;border:none;background:none;}
ul,ol{list-style:none;}
.container{max-width:var(--max-w);margin:0 auto;padding:0 24px;}
.section-pad{padding:var(--section-pad);}
.section-tag{
  display:inline-block;
  font-size:13px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--primary);
  background:rgba(25,227,177,0.08);
  border:1px solid rgba(25,227,177,0.25);
  padding:4px 14px;
  border-radius:999px;
  margin-bottom:16px;
}
.section-title{
  font-size:clamp(28px,3.6vw,44px);
  font-weight:700;
  line-height:1.25;
  color:var(--text-main);
  margin-bottom:16px;
}
.section-desc{
  font-size:16px;
  color:var(--text-muted);
  max-width:720px;
  line-height:1.8;
}
.btn-primary{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  background:var(--primary);
  color:#071310;
  font-size:16px;
  font-weight:600;
  padding:14px 32px;
  border-radius:999px;
  border:none;
  transition:filter .25s ease,box-shadow .25s ease,transform .2s ease;
  box-shadow:0 4px 24px rgba(25,227,177,0.25);
}
.btn-primary:hover{
  background:var(--primary);
  color:#071310;
  filter:brightness(1.08);
  box-shadow:0 8px 32px rgba(25,227,177,0.4);
  transform:translateY(-2px);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 2px 12px rgba(25,227,177,0.2);}
.btn-primary:focus-visible{outline:3px solid rgba(25,227,177,0.4);outline-offset:2px;}
.btn-secondary{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  background:transparent;
  color:var(--text-main);
  font-size:16px;
  font-weight:600;
  padding:14px 32px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,0.35);
  transition:border-color .25s ease,color .25s ease,background .25s ease,transform .2s ease;
}
.btn-secondary:hover{
  border-color:var(--primary);
  color:var(--text-main);
  background:rgba(25,227,177,0.06);
  transform:translateY(-2px);
}
.btn-secondary:focus-visible{outline:3px solid rgba(25,227,177,0.3);outline-offset:2px;}
.btn-sm{
  padding:8px 22px;
  font-size:14px;
}
/* ===== Header ===== */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1000;
  background:rgba(8,10,12,0.75);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,0.07);
  transition:background .3s ease,box-shadow .3s ease;
}
.site-header.scrolled{
  background:rgba(8,10,12,0.92);
  box-shadow:0 8px 32px rgba(0,0,0,0.45);
}
.nav-inner{
  max-width:var(--max-w);
  margin:0 auto;
  padding:0 24px;
  height:var(--header-h);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-mark{
  width:36px;height:36px;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  color:#0B0F14;
  font-size:18px;
  font-weight:800;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:10px;
  letter-spacing:-.02em;
  box-shadow:0 0 20px rgba(25,227,177,0.3);
}
.brand-text{
  font-size:18px;
  font-weight:700;
  color:var(--text-main);
  white-space:nowrap;
  letter-spacing:.01em;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:28px;
}
.nav-link{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--text-body);
  padding:6px 2px;
  transition:color .25s ease;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:100%;
  bottom:0;
  height:2px;
  background:var(--primary);
  border-radius:2px;
  transition:right .3s ease;
}
.nav-link:hover{color:var(--text-main);}
.nav-link:hover::after{right:0;}
.nav-link.active{color:var(--text-main);}
.nav-link.active::after{right:0;}
.nav-actions{
  display:flex;
  align-items:center;
  gap:14px;
  flex-shrink:0;
}
.nav-search-toggle{
  width:38px;height:38px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  color:var(--text-body);
  font-size:15px;
  border:1px solid transparent;
  transition:border-color .25s,color .25s;
}
.nav-search-toggle:hover{
  color:var(--primary);
  border-color:rgba(25,227,177,0.3);
}
.hamburger{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:40px;height:40px;
  padding:8px;
  border-radius:8px;
  border:1px solid rgba(255,255,255,0.1);
}
.hamburger span{
  display:block;
  height:2px;
  background:var(--text-body);
  border-radius:2px;
  transition:background .25s;
}
.hamburger:hover span{background:var(--primary);}
.search-panel{
  position:absolute;
  top:calc(var(--header-h) + 8px);
  left:50%;
  transform:translateX(-50%) translateY(-8px);
  width:min(640px,calc(100% - 48px));
  background:var(--card-raised);
  border:1px solid rgba(255,255,255,0.08);
  border-radius:16px;
  padding:12px;
  opacity:0;
  visibility:hidden;
  transition:all .3s ease;
  box-shadow:var(--shadow-lg);
  z-index:1001;
}
.search-panel.open{
  opacity:1;
  visibility:visible;
  transform:translateX(-50%) translateY(0);
}
.search-panel form{
  display:flex;
  gap:10px;
}
.search-panel input{
  flex:1;
  height:42px;
  background:var(--bg);
  border:1px solid rgba(255,255,255,0.12);
  border-radius:999px;
  padding:0 18px;
  color:var(--text-main);
  font-size:14px;
  outline:none;
  transition:border-color .3s;
}
.search-panel input:focus{border-color:var(--primary);}
.search-panel button{
  width:42px;height:42px;
  border-radius:50%;
  background:var(--primary);
  color:#071310;
  font-size:14px;
  display:flex;
  align-items:center;
  justify-content:center;
  transition:filter .25s;
}
.search-panel button:hover{filter:brightness(1.08);}
/* ===== Mobile Drawer ===== */
.mobile-drawer{
  position:fixed;
  top:0;right:0;bottom:0;
  width:min(86vw,360px);
  background:var(--bg);
  z-index:1100;
  transform:translateX(100%);
  transition:transform .35s cubic-bezier(.4,0,.2,1);
  display:flex;
  flex-direction:column;
  box-shadow:-8px 0 32px rgba(0,0,0,0.5);
}
.mobile-drawer.open{transform:translateX(0);}
.drawer-header{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:20px 24px;
  border-bottom:1px solid var(--border);
}
.drawer-header .brand-text{font-size:17px;}
.drawer-close{
  width:34px;height:34px;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--text-muted);
  font-size:15px;
  border:1px solid rgba(255,255,255,0.1);
  transition:all .25s;
}
.drawer-close:hover{color:var(--primary);border-color:rgba(25,227,177,0.4);}
.drawer-links{
  flex:1;
  padding:16px 24px;
  display:flex;
  flex-direction:column;
  gap:4px;
}
.drawer-link{
  display:block;
  padding:12px 12px;
  border-radius:10px;
  color:var(--text-body);
  font-size:15px;
  font-weight:500;
  transition:all .25s;
}
.drawer-link:hover{
  color:var(--primary);
  background:rgba(25,227,177,0.06);
}
.drawer-link.active{
  color:var(--primary);
  background:rgba(25,227,177,0.08);
}
.drawer-footer{
  padding:20px 24px;
  border-top:1px solid var(--border);
  display:flex;
  flex-direction:column;
  gap:10px;
}
.drawer-footer .btn-primary{width:100%;}
.drawer-overlay{
  position:fixed;
  inset:0;
  background:rgba(0,0,0,0.6);
  z-index:1050;
  opacity:0;
  visibility:hidden;
  transition:all .3s ease;
  backdrop-filter:blur(2px);
}
.drawer-overlay.open{opacity:1;visibility:visible;}
/* ===== Category Hero ===== */
.category-hero{
  position:relative;
  padding:calc(var(--header-h) + 80px) 0 80px;
  min-height:520px;
  display:flex;
  align-items:center;
  overflow:hidden;
}
.category-hero .hero-bg{
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  z-index:0;
}
.category-hero .hero-bg::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,rgba(5,8,10,0.95) 0%,rgba(5,8,10,0.72) 45%,rgba(5,8,10,0.35) 100%);
}
.category-hero .hero-bg::after{
  content:"";
  position:absolute;
  top:-40%;right:-10%;
  width:480px;height:480px;
  background:radial-gradient(circle,rgba(25,227,177,0.18) 0%,transparent 70%);
  pointer-events:none;
}
.category-hero .container{
  position:relative;
  z-index:2;
}
.hero-badge{
  display:inline-block;
  font-size:12px;
  font-weight:600;
  letter-spacing:.1em;
  color:var(--primary);
  border:1px solid rgba(25,227,177,0.4);
  background:rgba(25,227,177,0.1);
  padding:5px 16px;
  border-radius:999px;
  margin-bottom:20px;
}
.category-hero h1{
  font-size:clamp(40px,6vw,72px);
  font-weight:800;
  line-height:1.15;
  color:var(--text-main);
  margin-bottom:16px;
  letter-spacing:.01em;
}
.hero-subtitle{
  font-size:clamp(16px,2vw,20px);
  color:var(--text-body);
  max-width:560px;
  line-height:1.7;
  margin-bottom:32px;
}
.hero-actions{
  display:flex;
  gap:16px;
  flex-wrap:wrap;
}
.hero-stats{
  display:flex;
  gap:36px;
  margin-top:48px;
  padding-top:32px;
  border-top:1px solid rgba(255,255,255,0.08);
}
.stat-item .stat-num{
  font-size:26px;
  font-weight:700;
  color:var(--primary);
  font-family:"Inter","Noto Sans SC",sans-serif;
  line-height:1.2;
}
.stat-item .stat-label{
  font-size:13px;
  color:var(--text-muted);
}
/* ===== Feature Split ===== */
.feature-split{
  background:var(--bg);
  border-bottom:1px solid var(--border);
}
.feature-split .cell.large-6:last-child{
  display:flex;
  align-items:center;
  justify-content:center;
}
.feature-media{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-lg);
  border:1px solid var(--border);
}
.feature-media img{
  width:100%;
  height:100%;
  min-height:320px;
  object-fit:cover;
  transition:transform .5s ease;
}
.feature-media:hover img{transform:scale(1.03);}
.feature-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,transparent 60%,rgba(5,8,10,0.5));
  pointer-events:none;
}
.feature-list{
  margin-top:20px;
  margin-bottom:28px;
  display:flex;
  flex-direction:column;
  gap:14px;
}
.feature-list li{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:15px;
  color:var(--text-body);
}
.feature-list i{
  color:var(--primary);
  font-size:16px;
  flex-shrink:0;
}
/* ===== Features Icons ===== */
.features-section{
  background:var(--bg);
  position:relative;
  overflow:hidden;
}
.features-section::before{
  content:"";
  position:absolute;
  top:-20%;left:-10%;
  width:600px;height:600px;
  background:radial-gradient(circle,rgba(25,227,177,0.08) 0%,transparent 70%);
  pointer-events:none;
}
.features-section .container{position:relative;z-index:1;}
.feature-card{
  background:var(--card-bg);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  padding:32px 24px;
  text-align:center;
  transition:all .3s ease;
  height:100%;
  display:flex;
  flex-direction:column;
  align-items:center;
}
.feature-card:hover{
  background:var(--card-raised);
  border-color:var(--border-hover);
  transform:translateY(-6px);
  box-shadow:var(--shadow-lg);
}
.feature-card .feat-icon{
  width:64px;height:64px;
  border-radius:18px;
  background:linear-gradient(135deg,rgba(25,227,177,0.12),rgba(255,122,69,0.12));
  border:1px solid rgba(25,227,177,0.2);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:24px;
  color:var(--primary);
  margin-bottom:20px;
  transition:transform .3s ease;
}
.feature-card:hover .feat-icon{transform:scale(1.08) rotate(-4deg);}
.feature-card .feat-title{
  font-size:17px;
  font-weight:600;
  color:var(--text-main);
  margin-bottom:8px;
}
.feature-card .feat-desc{
  font-size:13px;
  color:var(--text-muted);
  line-height:1.6;
}
/* ===== Highlight Cards ===== */
.highlight-section{
  background:var(--bg);
  border-top:1px solid var(--border);
}
.highlight-cards{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
  margin-top:40px;
}
.high-card{
  position:relative;
  background:var(--card-bg);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  overflow:hidden;
  transition:all .35s ease;
  display:flex;
  flex-direction:column;
}
.high-card:hover{
  transform:translateY(-6px);
  border-color:var(--border-hover);
  box-shadow:var(--shadow-lg);
  background:var(--card-raised);
}
.high-card .card-media{
  position:relative;
  aspect-ratio:16/10;
  overflow:hidden;
}
.high-card .card-media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.high-card:hover .card-media img{transform:scale(1.04);}
.card-badge{
  position:absolute;
  top:12px;left:12px;
  font-size:12px;
  font-weight:600;
  padding:4px 12px;
  border-radius:999px;
  z-index:2;
}
.card-badge.hot{background:var(--accent);color:#1a0a00;}
.card-badge.latest{background:var(--primary);color:#071310;}
.card-badge.trend{background:rgba(255,255,255,0.14);color:var(--text-main);backdrop-filter:blur(6px);border:1px solid rgba(255,255,255,0.15);}
.high-card .card-body{
  padding:20px 20px 24px;
  flex:1;
  display:flex;
  flex-direction:column;
}
.high-card .card-title{
  font-size:18px;
  font-weight:600;
  color:var(--text-main);
  line-height:1.45;
  margin-bottom:8px;
  transition:color .25s;
}
.high-card:hover .card-title{color:var(--primary);}
.high-card .card-summary{
  font-size:13px;
  color:var(--text-muted);
  line-height:1.6;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin-bottom:16px;
}
.card-meta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid var(--border);
}
.card-meta .watch-time{
  font-size:13px;
  color:var(--text-muted);
  display:flex;
  align-items:center;
  gap:6px;
}
.card-meta .watch-time i{font-size:13px;}
.card-link{
  font-size:13px;
  font-weight:600;
  color:var(--primary);
  display:flex;
  align-items:center;
  gap:6px;
  transition:gap .25s ease;
}
.card-link:hover{gap:10px;}
/* ===== Timeline Steps ===== */
.steps-section{
  background:var(--card-bg);
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
  position:relative;
  overflow:hidden;
}
.steps-section::after{
  content:"";
  position:absolute;
  bottom:-30%;right:-10%;
  width:500px;height:500px;
  background:radial-gradient(circle,rgba(255,122,69,0.1) 0%,transparent 70%);
  pointer-events:none;
}
.steps-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:32px;
  margin-top:44px;
  position:relative;
  z-index:1;
}
.step-item{
  position:relative;
  padding-top:48px;
}
.step-item::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,rgba(25,227,177,0.5),rgba(255,255,255,0.05));
}
.step-num{
  position:absolute;
  top:-16px;left:0;
  width:40px;height:40px;
  border-radius:50%;
  background:var(--card-raised);
  border:1px solid rgba(25,227,177,0.4);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:15px;
  font-weight:700;
  color:var(--primary);
}
.step-title{
  font-size:18px;
  font-weight:600;
  color:var(--text-main);
  margin-bottom:8px;
}
.step-desc{
  font-size:14px;
  color:var(--text-muted);
  line-height:1.7;
}
/* ===== FAQ ===== */
.faq-section{
  background:var(--bg);
}
.faq-wrap{
  max-width:860px;
  margin:40px auto 0;
  display:flex;
  flex-direction:column;
  gap:14px;
}
.faq-item{
  background:var(--card-bg);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  overflow:hidden;
  transition:border-color .3s ease,background .3s ease;
}
.faq-item.active{
  border-color:rgba(25,227,177,0.5);
  background:var(--card-raised);
}
.faq-question{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 24px;
  font-size:16px;
  font-weight:600;
  color:var(--text-main);
  text-align:left;
  transition:color .25s;
}
.faq-question:hover{color:var(--primary);}
.faq-question .faq-icon{
  width:28px;height:28px;
  border-radius:50%;
  background:rgba(255,255,255,0.06);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:14px;
  color:var(--text-muted);
  flex-shrink:0;
  transition:all .35s ease;
}
.faq-item.active .faq-icon{
  transform:rotate(45deg);
  background:rgba(25,227,177,0.15);
  color:var(--primary);
}
.faq-answer{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s ease;
}
.faq-answer-inner{
  padding:0 24px 22px;
  font-size:14px;
  color:var(--text-muted);
  line-height:1.8;
  border-top:1px solid transparent;
}
.faq-item.active .faq-answer-inner{
  border-top:1px solid var(--border);
  padding-top:16px;
}
.faq-item.active .faq-answer{max-height:400px;}
/* ===== CTA ===== */
.cta-section{
  position:relative;
  padding:88px 0;
  overflow:hidden;
  background:var(--card-bg);
  border-top:1px solid var(--border);
}
.cta-section .cta-bg{
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  z-index:0;
}
.cta-section .cta-bg::before{
  content:"";
  position:absolute;
  inset:0;
  background:rgba(5,8,10,0.86);
}
.cta-section .cta-bg::after{
  content:"";
  position:absolute;
  left:50%;top:50%;
  transform:translate(-50%,-50%);
  width:700px;height:400px;
  background:radial-gradient(ellipse,rgba(25,227,177,0.15) 0%,transparent 70%);
  pointer-events:none;
}
.cta-inner{
  position:relative;
  z-index:2;
  text-align:center;
  max-width:720px;
  margin:0 auto;
}
.cta-inner h2{
  font-size:clamp(26px,3.4vw,40px);
  font-weight:700;
  color:var(--text-main);
  line-height:1.3;
  margin-bottom:12px;
}
.cta-inner .cta-sub{
  font-size:16px;
  color:var(--text-muted);
  margin-bottom:36px;
}
.cta-form{
  display:flex;
  gap:12px;
  max-width:520px;
  margin:0 auto;
  flex-wrap:wrap;
}
.cta-form input{
  flex:1;
  min-width:220px;
  height:48px;
  background:rgba(11,15,20,0.85);
  border:1px solid rgba(255,255,255,0.18);
  border-radius:999px;
  padding:0 20px;
  color:var(--text-main);
  font-size:14px;
  outline:none;
  transition:border-color .3s ease,box-shadow .3s ease;
}
.cta-form input::placeholder{color:var(--text-disabled);}
.cta-form input:focus{
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(25,227,177,0.15);
}
.cta-form .btn-primary{
  height:48px;
  min-width:140px;
  padding:0 28px;
  white-space:nowrap;
}
/* ===== Footer ===== */
.site-footer{
  background:#070A0D;
  border-top:1px solid var(--border);
  padding:60px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:40px;
}
.footer-brand .brand-text{
  font-size:18px;
  display:block;
  margin-bottom:12px;
}
.footer-brand p{
  font-size:14px;
  color:var(--text-muted);
  line-height:1.7;
  max-width:280px;
}
.footer-col h4{
  font-size:14px;
  font-weight:600;
  color:var(--text-main);
  margin-bottom:16px;
}
.footer-col a{
  display:block;
  font-size:14px;
  color:var(--text-muted);
  padding:4px 0;
  transition:color .25s,padding-left .25s;
}
.footer-col a:hover{
  color:var(--primary);
  padding-left:4px;
}
.footer-col p{
  font-size:14px;
  color:var(--text-muted);
  line-height:1.7;
}
.footer-bottom{
  border-top:1px solid var(--border);
  padding:20px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  color:var(--text-disabled);
  font-size:13px;
}
.footer-bottom p{margin:0;}
.footer-domain{
  font-family:"Inter",sans-serif;
  letter-spacing:.05em;
}
/* ===== Page Bottom Links ===== */
.page-links{
  background:var(--bg);
  border-top:1px solid var(--border);
}
.page-links-grid{
  display:flex;
  justify-content:center;
  gap:16px;
  flex-wrap:wrap;
}
.page-link-item{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:12px 24px;
  background:var(--card-bg);
  border:1px solid var(--border);
  border-radius:999px;
  font-size:14px;
  font-weight:500;
  color:var(--text-body);
  transition:all .3s ease;
}
.page-link-item:hover{
  color:var(--primary);
  border-color:var(--border-hover);
  background:var(--card-raised);
  transform:translateY(-2px);
}
.page-link-item i{font-size:13px;}
/* ===== Responsive ===== */
@media screen and (max-width:1024px){
  .nav-links{display:none;}
  .hamburger{display:flex;}
  .nav-actions .btn-primary{display:none;}
  .highlight-cards{grid-template-columns:repeat(2,1fr);}
  .steps-grid{grid-template-columns:repeat(2,1fr);gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media screen and (max-width:640px){
  :root{--section-pad:72px 0;}
  body{font-size:15px;}
  .category-hero{
    padding:calc(var(--header-h) + 48px) 0 56px;
    min-height:460px;
  }
  .category-hero h1{font-size:36px;}
  .hero-actions{
    flex-direction:column;
    width:100%;
  }
  .hero-actions .btn-primary,
  .hero-actions .btn-secondary{
    width:100%;
  }
  .hero-stats{
    gap:20px;
    flex-wrap:wrap;
    margin-top:32px;
    padding-top:24px;
  }
  .highlight-cards{
    grid-template-columns:1fr;
  }
  .steps-grid{
    grid-template-columns:1fr;
    gap:24px;
  }
  .cta-form{
    flex-direction:column;
  }
  .cta-form .btn-primary{
    width:100%;
    min-width:0;
  }
  .footer-grid{
    grid-template-columns:1fr;
    gap:28px;
  }
  .footer-bottom{
    flex-direction:column;
    text-align:center;
  }
  .page-links-grid{
    flex-direction:column;
    align-items:stretch;
  }
  .page-link-item{
    justify-content:center;
  }
  .feature-media img{min-height:220px;}
}
@media screen and (max-width:520px){
  .section-title{font-size:24px;}
  .brand-text{font-size:15px;}
  .brand-mark{width:32px;height:32px;font-size:16px;border-radius:8px;}
  .nav-inner{padding:0 16px;}
  .search-panel{width:calc(100% - 32px);}
  .stat-item .stat-num{font-size:22px;}
}

/* roulang page: article */
:root {
  --primary: #19E3B1;
  --primary-dark: #14b894;
  --accent: #FF7A45;
  --bg-page: #0B0F14;
  --bg-card: #12171D;
  --bg-raised: #1A222B;
  --bg-hover: #212B35;
  --border: rgba(255,255,255,0.06);
  --border-primary: rgba(25,227,177,0.5);
  --text-title: #FFFFFF;
  --text-body: #C8D0D8;
  --text-muted: #8B96A4;
  --text-disabled: #56606C;
  --radius-lg: 20px;
  --radius-md: 16px;
  --radius-sm: 8px;
  --shadow-card: 0 4px 20px rgba(0,0,0,0.35);
  --shadow-hover: 0 12px 40px rgba(0,0,0,0.55);
  --shadow-nav: 0 8px 32px rgba(0,0,0,0.45);
  --font-sans: "Noto Sans SC", "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --container-w: 1200px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-body);
  background: var(--bg-page);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: inline-block; vertical-align: middle; }
a { color: inherit; text-decoration: none; transition: color 0.25s ease; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea { font-family: inherit; }
h1, h2, h3, h4, h5, h6 { color: var(--text-title); margin: 0 0 16px; line-height: 1.3; font-weight: 700; }
p { margin: 0 0 16px; }
.container { max-width: var(--container-w); margin: 0 auto; padding: 0 24px; position: relative; z-index: 2; }
.grid-container { max-width: var(--container-w); }

/* 按钮 */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: #07100C;
  font-size: 15px;
  font-weight: 600;
  padding: 13px 32px;
  border-radius: 999px;
  border: none;
  box-shadow: 0 4px 18px rgba(25,227,177,0.22);
  transition: all 0.3s ease;
  letter-spacing: 0.02em;
}
.btn-primary:hover {
  filter: brightness(1.08);
  box-shadow: 0 8px 28px rgba(25,227,177,0.3);
  transform: translateY(-2px);
  color: #07100C;
}
.btn-primary:active { transform: translateY(0); }
.btn-primary:focus-visible,
.btn-secondary:focus-visible,
.nav-link:focus-visible,
.hamburger:focus-visible { outline: 2px solid var(--primary); outline-offset: 3px; }
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: #FFFFFF;
  font-size: 15px;
  font-weight: 600;
  padding: 13px 32px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.35);
  transition: all 0.3s ease;
}
.btn-secondary:hover { border-color: var(--primary); color: #fff; background: rgba(25,227,177,0.08); }
.btn-lg { padding: 16px 42px; font-size: 16px; }
.btn-sm { padding: 8px 20px; font-size: 14px; }

/* 导航 */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(8,10,12,0.75);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(25,227,177,0.15);
  transition: background 0.3s ease, box-shadow 0.3s ease;
}
.site-nav.scrolled {
  background: rgba(8,10,12,0.92);
  box-shadow: var(--shadow-nav);
}
.nav-inner {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #07100C;
  font-weight: 800;
  font-size: 18px;
  flex-shrink: 0;
}
.brand-text { color: #fff; font-size: 18px; font-weight: 700; letter-spacing: 0.02em; white-space: nowrap; }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-link {
  color: var(--text-body);
  font-size: 15px;
  font-weight: 500;
  padding: 8px 2px;
  position: relative;
  transition: color 0.25s ease;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: width 0.3s ease;
}
.nav-link:hover, .nav-link.active { color: #fff; }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }
.nav-actions { display: flex; align-items: center; gap: 16px; }
.nav-search-toggle { color: var(--text-body); font-size: 16px; padding: 8px; transition: color 0.25s ease; }
.nav-search-toggle:hover { color: var(--primary); }
.hamburger {
  display: none;
  width: 40px;
  height: 40px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
}
.hamburger span { display: block; width: 20px; height: 2px; background: #fff; border-radius: 2px; transition: transform 0.3s ease, opacity 0.3s ease; }
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* 搜索弹层 */
.search-pop {
  position: fixed;
  top: 70px;
  left: 0;
  right: 0;
  background: rgba(11,15,20,0.96);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  padding: 24px 0;
  border-bottom: 1px solid var(--border);
  transform: translateY(-120%);
  transition: transform 0.35s ease;
  z-index: 999;
}
.search-pop.open { transform: translateY(0); }
.search-pop-inner { display: flex; gap: 12px; max-width: 720px; margin: 0 auto; padding: 0 24px; }
.search-pop input {
  flex: 1;
  height: 48px;
  background: var(--bg-page);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 999px;
  padding: 0 22px;
  color: #fff;
  font-size: 15px;
  outline: none;
  transition: border-color 0.25s ease;
}
.search-pop input::placeholder { color: var(--text-muted); }
.search-pop input:focus { border-color: var(--primary); }
.search-pop button {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--primary);
  border: none;
  color: #07100C;
  font-size: 15px;
  transition: filter 0.25s ease;
}
.search-pop button:hover { filter: brightness(1.08); }

/* 菜单遮罩 */
.menu-mask {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 996;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
body.menu-open .menu-mask { opacity: 1; pointer-events: auto; }

/* 文章 Hero */
.article-hero {
  position: relative;
  padding: 180px 0 88px;
  overflow: hidden;
  background: linear-gradient(120deg, rgba(5,8,10,0.94) 0%, rgba(5,8,10,0.74) 45%, rgba(5,8,10,0.6) 100%);
}
.article-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  opacity: 0.4;
  z-index: 0;
}
.article-hero::after {
  content: "";
  position: absolute;
  width: 520px;
  height: 520px;
  right: -140px;
  top: -140px;
  background: radial-gradient(circle, rgba(25,227,177,0.16), transparent 60%);
  z-index: 0;
  pointer-events: none;
}
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 20px;
}
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { color: var(--text-disabled); }
.article-cat-tag {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 6px;
  background: rgba(25,227,177,0.12);
  border: 1px solid rgba(25,227,177,0.3);
  color: var(--primary);
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 20px;
}
.article-hero h1 {
  font-size: clamp(30px, 4vw, 48px);
  font-weight: 800;
  line-height: 1.18;
  max-width: 840px;
  margin-bottom: 24px;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
  color: var(--text-muted);
  font-size: 14px;
}
.article-meta span { display: inline-flex; align-items: center; gap: 8px; }
.article-meta i { color: var(--primary); }

/* 正文区 */
.article-body-wrap {
  max-width: 940px;
  margin: -48px auto 0;
  position: relative;
  z-index: 3;
  padding: 0 24px;
}
.article-content {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: clamp(28px, 4vw, 56px);
  box-shadow: var(--shadow-card);
}
.article-content > p:first-of-type::first-letter {
  float: left;
  font-size: 54px;
  line-height: 0.9;
  padding-right: 12px;
  font-weight: 800;
  color: var(--primary);
}
.article-content p {
  font-size: 17px;
  line-height: 1.8;
  color: var(--text-body);
  margin-bottom: 24px;
}
.article-content h2 {
  font-size: 26px;
  font-weight: 700;
  margin: 40px 0 16px;
  color: #fff;
}
.article-content h3 {
  font-size: 20px;
  font-weight: 600;
  margin: 28px 0 12px;
  color: #fff;
}
.article-content img {
  border-radius: 12px;
  box-shadow: var(--shadow-card);
  margin: 24px 0;
}
.article-content blockquote {
  border-left: 3px solid var(--primary);
  background: var(--bg-raised);
  padding: 18px 24px;
  border-radius: 0 12px 12px 0;
  color: var(--text-body);
  margin: 24px 0;
}
.article-content ul,
.article-content ol {
  padding-left: 24px;
  margin: 0 0 24px;
  color: var(--text-body);
}
.article-content li { margin-bottom: 8px; }
.article-content a { color: var(--primary); }
.article-content a:hover { text-decoration: underline; }
.article-content table { width: 100%; border-collapse: collapse; margin: 24px 0; background: transparent; }
.article-content th,
.article-content td { border: 1px solid var(--border); padding: 12px 16px; text-align: left; }
.article-content th { background: var(--bg-raised); color: #fff; }
.article-content pre {
  background: var(--bg-page);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px 22px;
  overflow-x: auto;
  color: #D4F7EC;
  font-size: 14px;
  line-height: 1.6;
  margin: 24px 0;
}
.article-content code { background: var(--bg-raised); padding: 2px 6px; border-radius: 4px; font-size: 0.9em; }

/* 空状态 */
.article-empty {
  background: var(--bg-card);
  border: 1px dashed var(--border-primary);
  border-radius: var(--radius-lg);
  padding: 88px 32px;
  text-align: center;
  box-shadow: var(--shadow-card);
}
.article-empty i {
  font-size: 44px;
  color: var(--text-muted);
  margin-bottom: 18px;
  display: inline-block;
}
.article-empty p { color: var(--text-body); font-size: 18px; margin-bottom: 24px; }

/* 标签与入口 */
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 32px 0;
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}
.tag {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 6px;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 500;
  transition: all 0.25s ease;
}
.tag:hover { border-color: var(--primary); color: var(--primary); }
.article-nav-links {
  display: flex;
  gap: 16px;
  margin-bottom: 56px;
  flex-wrap: wrap;
}
.article-nav-links a { flex: 1; min-width: 180px; }

/* 相关推荐 */
.related-section { padding: 60px 0 96px; background: var(--bg-page); }
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 36px;
}
.section-head h2 { font-size: clamp(24px, 3vw, 34px); font-weight: 700; margin: 0; }
.section-head .sub { color: var(--text-muted); font-size: 14px; margin: 8px 0 0; }
.related-grid .cell { display: flex; margin-bottom: 24px; }
.related-card {
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all 0.3s ease;
}
.related-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-primary);
  box-shadow: var(--shadow-hover);
}
.related-card .card-img {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  position: relative;
  background: var(--bg-raised);
}
.related-card .card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.related-card:hover .card-img img { transform: scale(1.04); }
.related-card .card-body { padding: 20px 24px 24px; display: flex; flex-direction: column; flex: 1; }
.related-card h3 { font-size: 18px; font-weight: 600; margin: 0 0 8px; color: #fff; }
.related-card p { font-size: 14px; color: var(--text-muted); line-height: 1.6; margin: 0; }
.cat-label {
  align-self: flex-start;
  display: inline-block;
  font-size: 12px;
  color: var(--primary);
  background: rgba(25,227,177,0.1);
  border-radius: 4px;
  padding: 3px 10px;
  margin-bottom: 12px;
}

/* CTA */
.cta-section {
  position: relative;
  padding: 88px 0;
  text-align: center;
  overflow: hidden;
  background: linear-gradient(120deg, rgba(5,8,10,0.9) 0%, rgba(5,8,10,0.72) 100%), url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
}
.cta-section::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 640px;
  height: 640px;
  background: radial-gradient(circle, rgba(25,227,177,0.14) 0%, transparent 60%);
  pointer-events: none;
}
.cta-section h2 {
  font-size: clamp(26px, 3vw, 38px);
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
}
.cta-section p {
  color: var(--text-muted);
  font-size: 16px;
  margin-bottom: 28px;
  position: relative;
  z-index: 1;
}
.cta-section .btn-primary { position: relative; z-index: 1; }

/* 页脚 */
.site-footer {
  background: #070A0D;
  border-top: 1px solid var(--border);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
}
.footer-brand .brand-text { font-size: 20px; font-weight: 700; color: #fff; }
.footer-brand p {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.7;
  margin-top: 12px;
  max-width: 320px;
}
.footer-col h4 { color: #fff; font-size: 16px; font-weight: 600; margin-bottom: 16px; }
.footer-col a {
  display: block;
  color: var(--text-muted);
  font-size: 14px;
  padding: 4px 0;
  transition: color 0.25s ease;
}
.footer-col a:hover { color: var(--primary); }
.footer-col p { color: var(--text-muted); font-size: 14px; margin: 0; }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 22px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.footer-bottom p { color: var(--text-muted); font-size: 13px; margin: 0; }
.footer-domain { color: var(--text-disabled) !important; font-size: 12px !important; }

/* 响应式 */
@media (max-width: 1024px) {
  .related-grid .cell.large-4 { flex: 0 0 50%; max-width: 50%; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 900px) {
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: min(86vw, 360px);
    height: 100vh;
    background: #0B0F14;
    flex-direction: column;
    justify-content: flex-start;
    align-items: flex-start;
    padding: 96px 32px 32px;
    gap: 8px;
    transition: right 0.35s ease;
    box-shadow: var(--shadow-nav);
    z-index: 998;
    border-left: 1px solid var(--border);
  }
  .site-nav.nav-open .nav-links { right: 0; }
  .nav-links .nav-link {
    font-size: 16px;
    padding: 12px 0;
    width: 100%;
    border-bottom: 1px solid var(--border);
  }
  .nav-link::after { display: none; }
  .nav-search-toggle { display: none; }
  .hamburger { display: flex; }
  .nav-actions { gap: 10px; }
  .nav-actions .btn-primary { padding: 8px 16px; font-size: 13px; }
  .related-grid .cell { flex: 0 0 100%; max-width: 100%; }
}
@media (max-width: 640px) {
  .nav-inner { height: 62px; }
  .brand-text { font-size: 16px; }
  .brand-mark { width: 32px; height: 32px; font-size: 15px; }
  .article-hero { padding: 140px 0 60px; }
  .article-body-wrap { margin-top: -24px; padding: 0 16px; }
  .article-content { padding: 24px 20px; border-radius: 16px; }
  .article-hero h1 { font-size: 28px; }
  .related-section { padding: 48px 0 72px; }
  .cta-section { padding: 64px 0; }
  .section-head { flex-direction: column; align-items: flex-start; gap: 8px; }
  .article-meta { gap: 12px; font-size: 13px; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .search-pop { top: 62px; }
}
@media (max-width: 520px) {
  .footer-grid { grid-template-columns: 1fr; }
  .article-nav-links a { min-width: 100%; }
  .article-nav-links { flex-direction: column; }
  .container { padding: 0 16px; }
  .nav-inner { padding: 0 16px; }
}

/* roulang page: category3 */
:root {
      --primary: #19E3B1;
      --primary-dark: #0FAE86;
      --accent: #FF7A45;
      --bg-dark: #0B0F14;
      --bg-card: #12171D;
      --bg-raised: #1A222B;
      --bg-hover: #212B35;
      --text-light: #FFFFFF;
      --text-body: #C8D0D8;
      --text-muted: #8B96A4;
      --text-disabled: #56606C;
      --border-light: rgba(255, 255, 255, 0.06);
      --border-hover: rgba(25, 227, 177, 0.5);
      --radius-lg: 20px;
      --radius-md: 16px;
      --radius-sm: 10px;
      --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.35);
      --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.55);
      --shadow-nav: 0 8px 32px rgba(0, 0, 0, 0.45);
      --font-stack: "Noto Sans SC", "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
      --section-pad: 96px 0;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: var(--font-stack);
      background: var(--bg-dark);
      color: var(--text-body);
      line-height: 1.75;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
    }

    a {
      color: var(--primary);
      text-decoration: none;
      transition: color .25s ease;
    }

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

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

    button, input {
      font-family: var(--font-stack);
      border: none;
      outline: none;
    }

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

    .section {
      padding: var(--section-pad);
    }

    .section-label {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-size: 14px;
      font-weight: 600;
      letter-spacing: 2px;
      color: var(--primary);
      text-transform: uppercase;
      margin-bottom: 16px;
    }

    .section-label::before {
      content: '';
      width: 28px;
      height: 2px;
      background: var(--primary);
      border-radius: 2px;
    }

    .section-title {
      font-size: clamp(28px, 3.6vw, 44px);
      font-weight: 700;
      line-height: 1.25;
      color: var(--text-light);
      margin-bottom: 20px;
    }

    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      max-width: 600px;
      line-height: 1.8;
    }

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

    .text-center .section-label::before,
    .text-center .section-label::after {
      content: '';
      width: 28px;
      height: 2px;
      background: var(--primary);
      border-radius: 2px;
    }

    .text-center .section-label {
      justify-content: center;
    }

    /* ==== Navigation ==== */
    .site-nav {
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      z-index: 1000;
      background: rgba(8, 10, 12, 0.75);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      transition: background .3s ease, box-shadow .3s ease;
    }

    .site-nav.scrolled {
      background: rgba(8, 10, 12, 0.92);
      box-shadow: var(--shadow-nav);
      position: fixed;
    }

    .nav-inner {
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 24px;
      height: 72px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
    }

    .brand {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }

    .brand-mark {
      width: 40px;
      height: 40px;
      border-radius: 12px;
      background: linear-gradient(135deg, var(--primary) 0%, #0FAE86 100%);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      font-weight: 800;
      color: #0B0F14;
      box-shadow: 0 4px 16px rgba(25, 227, 177, 0.35);
    }

    .brand-text {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-light);
      letter-spacing: .5px;
    }

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

    .nav-link {
      padding: 10px 18px;
      font-size: 15px;
      font-weight: 500;
      color: var(--text-body);
      border-radius: 999px;
      transition: all .25s ease;
      position: relative;
    }

    .nav-link:hover {
      color: var(--text-light);
      background: rgba(255, 255, 255, 0.06);
    }

    .nav-link.active {
      color: var(--text-light);
      font-weight: 600;
    }

    .nav-link.active::after {
      content: '';
      position: absolute;
      bottom: 4px;
      left: 50%;
      transform: translateX(-50%);
      width: 20px;
      height: 2px;
      background: var(--primary);
      border-radius: 2px;
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 14px;
    }

    .nav-search-toggle {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.06);
      color: var(--text-body);
      font-size: 15px;
      cursor: pointer;
      transition: all .25s ease;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .nav-search-toggle:hover {
      background: rgba(255, 255, 255, 0.12);
      color: var(--primary);
    }

    .btn-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: var(--primary);
      color: #0B0F14;
      font-size: 15px;
      font-weight: 600;
      padding: 12px 28px;
      border-radius: 999px;
      transition: all .25s ease;
      cursor: pointer;
      border: 2px solid var(--primary);
    }

    .btn-primary:hover {
      filter: brightness(1.08);
      box-shadow: 0 8px 28px rgba(25, 227, 177, 0.35);
      color: #0B0F14;
    }

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

    .btn-primary.btn-sm {
      padding: 8px 22px;
      font-size: 14px;
    }

    .btn-outline {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: transparent;
      color: var(--text-light);
      font-size: 15px;
      font-weight: 600;
      padding: 12px 28px;
      border-radius: 999px;
      border: 1px solid rgba(255, 255, 255, 0.35);
      transition: all .25s ease;
      cursor: pointer;
    }

    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: rgba(25, 227, 177, 0.06);
    }

    .hamburger {
      display: none;
      flex-direction: column;
      gap: 5px;
      background: transparent;
      cursor: pointer;
      padding: 6px;
    }

    .hamburger span {
      width: 22px;
      height: 2px;
      background: var(--text-light);
      border-radius: 2px;
      transition: all .3s ease;
    }

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

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

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

    /* Mobile drawer */
    .mobile-drawer {
      display: none;
      position: fixed;
      top: 0;
      right: 0;
      bottom: 0;
      width: min(86vw, 360px);
      background: var(--bg-dark);
      z-index: 2000;
      padding: 28px 24px;
      flex-direction: column;
      box-shadow: -8px 0 32px rgba(0,0,0,0.45);
      transform: translateX(100%);
      transition: transform .35s ease;
    }

    .mobile-drawer.open {
      transform: translateX(0);
    }

    .mobile-drawer .drawer-brand {
      display: flex;
      align-items: center;
      gap: 10px;
      padding-bottom: 20px;
      border-bottom: 1px solid var(--border-light);
      margin-bottom: 16px;
    }

    .mobile-drawer .drawer-links {
      display: flex;
      flex-direction: column;
      gap: 4px;
      flex: 1;
    }

    .mobile-drawer .drawer-links a {
      padding: 14px 12px;
      font-size: 16px;
      font-weight: 500;
      color: var(--text-body);
      border-radius: 10px;
      transition: all .2s ease;
    }

    .mobile-drawer .drawer-links a:hover,
    .mobile-drawer .drawer-links a.active {
      background: rgba(25, 227, 177, 0.08);
      color: var(--primary);
    }

    .mobile-drawer .drawer-footer {
      padding-top: 16px;
      border-top: 1px solid var(--border-light);
    }

    .drawer-close {
      position: absolute;
      top: 18px;
      right: 18px;
      width: 36px;
      height: 36px;
      background: rgba(255,255,255,0.08);
      color: var(--text-body);
      font-size: 16px;
      border-radius: 50%;
      cursor: pointer;
      transition: all .25s ease;
    }

    .drawer-close:hover {
      background: rgba(255,255,255,0.15);
      color: var(--text-light);
    }

    .drawer-overlay {
      display: none;
      position: fixed;
      inset: 0;
      background: rgba(0,0,0,0.5);
      z-index: 1999;
      opacity: 0;
      transition: opacity .3s ease;
    }

    .drawer-overlay.open {
      opacity: 1;
    }

    /* ==== Page Hero ==== */
    .page-hero {
      position: relative;
      min-height: 560px;
      display: flex;
      align-items: center;
      padding: 180px 0 80px;
      background:
        linear-gradient(90deg, rgba(5, 8, 10, 0.94) 0%, rgba(5, 8, 10, 0.7) 45%, transparent 80%),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
      overflow: hidden;
    }

    .page-hero::after {
      content: '';
      position: absolute;
      right: -80px;
      top: 50%;
      width: 400px;
      height: 400px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(25, 227, 177, 0.15), transparent 65%);
      pointer-events: none;
    }

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

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 18px;
      background: rgba(25, 227, 177, 0.1);
      border: 1px solid rgba(25, 227, 177, 0.35);
      color: var(--primary);
      font-size: 13px;
      font-weight: 500;
      border-radius: 999px;
      margin-bottom: 24px;
      letter-spacing: .5px;
    }

    .hero-badge i {
      font-size: 12px;
    }

    .page-hero h1 {
      font-size: clamp(40px, 5.6vw, 68px);
      font-weight: 800;
      line-height: 1.15;
      color: var(--text-light);
      margin-bottom: 18px;
    }

    .page-hero .hero-sub {
      font-size: 18px;
      color: var(--text-body);
      max-width: 540px;
      line-height: 1.8;
      margin-bottom: 32px;
    }

    .hero-meta {
      display: flex;
      gap: 28px;
      flex-wrap: wrap;
      margin-top: 28px;
      padding-top: 22px;
      border-top: 1px solid rgba(255,255,255,0.08);
    }

    .hero-meta span {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      color: var(--text-muted);
    }

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

    /* ==== Steps / Timeline ==== */
    .steps-section {
      padding: var(--section-pad);
      background: var(--bg-dark);
    }

    .steps-wrap {
      margin-top: 56px;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
    }

    .steps-wrap::before {
      content: '';
      position: absolute;
      top: 40px;
      left: 8%;
      right: 8%;
      height: 1px;
      background: linear-gradient(90deg, var(--primary), rgba(255,255,255,0.12), var(--accent));
      opacity: .5;
      z-index: 0;
    }

    .step-item {
      position: relative;
      z-index: 1;
      text-align: center;
      padding: 24px 20px;
    }

    .step-num {
      width: 80px;
      height: 80px;
      margin: 0 auto 20px;
      border-radius: 22px;
      background: var(--bg-card);
      border: 1px solid rgba(25, 227, 177, 0.25);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 28px;
      font-weight: 800;
      color: var(--primary);
      box-shadow: 0 8px 24px rgba(0,0,0,0.3);
      position: relative;
    }

    .step-num::after {
      content: '';
      position: absolute;
      inset: -4px;
      border-radius: 26px;
      border: 1px dashed rgba(25, 227, 177, 0.2);
    }

    .step-item h3 {
      font-size: 18px;
      font-weight: 600;
      color: var(--text-light);
      margin-bottom: 10px;
    }

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

    /* ==== Feature Grid ==== */
    .feature-section {
      padding: var(--section-pad);
      background: var(--bg-card);
      position: relative;
      overflow: hidden;
    }

    .feature-section::before {
      content: '';
      position: absolute;
      top: -120px;
      left: -100px;
      width: 340px;
      height: 340px;
      background: radial-gradient(circle, rgba(255, 122, 69, 0.1), transparent 60%);
      pointer-events: none;
    }

    .feature-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      margin-top: 48px;
    }

    .feature-card {
      background: var(--bg-raised);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      padding: 32px 26px;
      transition: all .3s ease;
      cursor: default;
    }

    .feature-card:hover {
      transform: translateY(-4px);
      border-color: var(--border-hover);
      box-shadow: var(--shadow-hover);
      background: var(--bg-hover);
    }

    .feature-icon {
      width: 52px;
      height: 52px;
      border-radius: 14px;
      background: rgba(25, 227, 177, 0.1);
      border: 1px solid rgba(25, 227, 177, 0.2);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      color: var(--primary);
      margin-bottom: 20px;
    }

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

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

    /* ==== Play Modes / Content Cards ==== */
    .modes-section {
      padding: var(--section-pad);
      background: var(--bg-dark);
    }

    .modes-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
      margin-top: 48px;
    }

    .mode-card {
      background: var(--bg-card);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-lg);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: all .3s ease;
    }

    .mode-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
      border-color: var(--border-hover);
    }

    .mode-media {
      position: relative;
      aspect-ratio: 16 / 9;
      background: var(--bg-raised);
    }

    .mode-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform .35s ease;
    }

    .mode-card:hover .mode-media img {
      transform: scale(1.04);
    }

    .mode-tag {
      position: absolute;
      top: 14px;
      left: 14px;
      padding: 4px 14px;
      border-radius: 6px;
      font-size: 12px;
      font-weight: 600;
      background: rgba(11, 15, 20, 0.75);
      backdrop-filter: blur(6px);
      color: var(--primary);
      border: 1px solid rgba(25, 227, 177, 0.3);
    }

    .mode-tag.orange {
      background: rgba(255, 122, 69, 0.15);
      color: var(--accent);
      border-color: rgba(255, 122, 69, 0.3);
    }

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

    .mode-body h3 {
      font-size: 20px;
      font-weight: 600;
      color: var(--text-light);
      margin-bottom: 12px;
    }

    .mode-body p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      flex: 1;
    }

    .mode-link {
      margin-top: 18px;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      font-weight: 600;
      color: var(--primary);
      transition: gap .25s ease;
    }

    .mode-link:hover {
      gap: 14px;
      color: var(--primary);
    }

    /* ==== Related Links ==== */
    .related-section {
      padding: var(--section-pad);
      background: var(--bg-raised);
    }

    .related-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-top: 48px;
    }

    .related-card {
      padding: 32px 28px;
      background: var(--bg-card);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      transition: all .3s ease;
      display: flex;
      align-items: flex-start;
      gap: 20px;
    }

    .related-card:hover {
      border-color: var(--border-hover);
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }

    .related-icon {
      width: 48px;
      height: 48px;
      border-radius: 14px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      background: rgba(25, 227, 177, 0.08);
      color: var(--primary);
      border: 1px solid rgba(25, 227, 177, 0.15);
      flex-shrink: 0;
    }

    .related-card:nth-child(2) .related-icon {
      background: rgba(255, 122, 69, 0.08);
      color: var(--accent);
      border-color: rgba(255, 122, 69, 0.15);
    }

    .related-card:nth-child(3) .related-icon {
      background: rgba(255, 255, 255, 0.06);
      color: var(--text-body);
      border-color: rgba(255,255,255,0.08);
    }

    .related-info h3 {
      font-size: 18px;
      font-weight: 600;
      color: var(--text-light);
      margin-bottom: 8px;
    }

    .related-info p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 10px;
    }

    .related-info a {
      font-size: 14px;
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    /* ==== FAQ ==== */
    .faq-section {
      padding: var(--section-pad);
      background: var(--bg-dark);
    }

    .faq-list {
      max-width: 840px;
      margin: 48px auto 0;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .faq-item {
      background: var(--bg-card);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: border-color .3s ease, box-shadow .3s ease;
    }

    .faq-item.active {
      border-color: var(--border-hover);
      box-shadow: 0 6px 24px rgba(0,0,0,0.35);
    }

    .faq-q {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      padding: 22px 26px;
      cursor: pointer;
      font-size: 15px;
      font-weight: 600;
      color: var(--text-light);
      transition: background .2s ease;
      user-select: none;
    }

    .faq-q:hover {
      background: rgba(255,255,255,0.02);
    }

    .faq-q .faq-icon {
      width: 32px;
      height: 32px;
      border-radius: 50%;
      border: 1px solid rgba(255,255,255,0.15);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 16px;
      color: var(--primary);
      transition: all .3s ease;
      flex-shrink: 0;
      font-style: normal;
    }

    .faq-item.active .faq-icon {
      transform: rotate(45deg);
      border-color: var(--primary);
      background: rgba(25, 227, 177, 0.1);
    }

    .faq-a {
      max-height: 0;
      overflow: hidden;
      transition: max-height .3s ease;
    }

    .faq-a-inner {
      padding: 0 26px 22px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.8;
      border-top: 1px solid transparent;
    }

    .faq-item.active .faq-a-inner {
      border-top-color: rgba(255,255,255,0.04);
    }

    /* ==== CTA ==== */
    .cta-section {
      padding: var(--section-pad);
      background:
        linear-gradient(rgba(5, 8, 10, 0.85), rgba(5, 8, 10, 0.9)),
        url('/assets/images/backpic/back-3.png') center/cover no-repeat;
      position: relative;
      overflow: hidden;
    }

    .cta-section::after {
      content: '';
      position: absolute;
      bottom: -100px;
      left: 30%;
      width: 400px;
      height: 400px;
      background: radial-gradient(circle, rgba(25, 227, 177, 0.12), transparent 60%);
      pointer-events: none;
    }

    .cta-inner {
      max-width: 680px;
      margin: 0 auto;
      text-align: center;
      position: relative;
      z-index: 2;
    }

    .cta-inner h2 {
      font-size: clamp(28px, 3.6vw, 40px);
      font-weight: 700;
      color: var(--text-light);
      margin-bottom: 16px;
      line-height: 1.3;
    }

    .cta-inner p {
      font-size: 16px;
      color: var(--text-muted);
      margin-bottom: 36px;
      line-height: 1.8;
    }

    .cta-form {
      display: flex;
      gap: 12px;
      max-width: 480px;
      margin: 0 auto;
    }

    .cta-form input {
      flex: 1;
      height: 48px;
      padding: 0 20px;
      background: rgba(11, 15, 20, 0.8);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: 999px;
      color: var(--text-light);
      font-size: 14px;
      transition: border-color .25s ease;
    }

    .cta-form input:focus {
      border-color: var(--primary);
    }

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

    .cta-form button {
      height: 48px;
      padding: 0 32px;
    }

    /* ==== Footer ==== */
    .site-footer {
      background: #070A0D;
      border-top: 1px solid var(--border-light);
      padding: 64px 0 0;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 32px;
      padding-bottom: 40px;
    }

    .footer-brand .brand-text {
      color: var(--text-light);
      font-size: 22px;
      font-weight: 700;
      display: block;
      margin-bottom: 14px;
    }

    .footer-brand p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.8;
      max-width: 320px;
    }

    .footer-col h4 {
      font-size: 15px;
      font-weight: 600;
      color: var(--text-light);
      margin-bottom: 18px;
    }

    .footer-col a {
      display: block;
      padding: 6px 0;
      font-size: 14px;
      color: var(--text-muted);
      transition: color .25s ease;
    }

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

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

    .footer-bottom {
      padding: 22px 0;
      border-top: 1px solid rgba(255,255,255,0.06);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      flex-wrap: wrap;
    }

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

    /* ==== Responsive ==== */
    @media screen and (max-width: 1024px) {
      .steps-wrap {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
      }

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

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

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

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

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

    @media screen and (max-width: 640px) {
      :root {
        --section-pad: 72px 0;
      }

      .container {
        padding: 0 20px;
      }

      .nav-inner {
        height: 64px;
      }

      .nav-links,
      .nav-actions .btn-primary,
      .nav-actions .nav-search-toggle {
        display: none;
      }

      .hamburger {
        display: flex;
      }

      .mobile-drawer {
        display: flex;
      }

      .page-hero {
        min-height: 480px;
        padding: 140px 0 64px;
      }

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

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

      .hero-meta {
        gap: 16px;
      }

      .hero-meta span {
        font-size: 13px;
      }

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

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

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

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

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

      .cta-form button {
        width: 100%;
      }

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

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