/* roulang page: index */
:root {
  --bg-0: #070D15;
  --bg-1: #0C1826;
  --bg-2: #102338;
  --glass-bg: rgba(145, 190, 230, 0.055);
  --glass-border: rgba(148, 205, 255, 0.14);
  --glass-hover: rgba(148, 205, 255, 0.10);
  --primary: #34E3FF;
  --primary-glow: rgba(52, 227, 255, 0.35);
  --secondary: #8A7BFF;
  --online: #69F0AE;
  --warning: #FFC36B;
  --hot: #FF7A6B;
  --text-1: #EAF3FF;
  --text-2: #A0B8D0;
  --text-3: #65809B;
  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 20px;
  --radius-pill: 999px;
  --card-shadow: 0 16px 40px rgba(0, 0, 0, 0.25);
  --space-section: clamp(4rem, 8vw, 7rem);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, sans-serif;
  background:
    radial-gradient(1100px 520px at 88% -8%, rgba(52, 227, 255, 0.08), transparent 60%),
    radial-gradient(900px 600px at -5% 28%, rgba(138, 123, 255, 0.09), transparent 60%),
    linear-gradient(180deg, var(--bg-0) 0%, var(--bg-1) 50%, var(--bg-0) 100%);
  color: var(--text-1);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image: radial-gradient(rgba(160, 184, 208, 0.06) 0.8px, transparent 0.8px);
  background-size: 24px 24px;
}

body::after {
  content: "";
  position: fixed;
  pointer-events: none;
  z-index: 0;
  inset: 0;
  background: radial-gradient(circle at 20% 40%, rgba(52, 227, 255, 0.04) 0%, transparent 30%);
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: #7ceeff;
}

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

button,
input {
  font-family: inherit;
}

section[id],
div[id] {
  scroll-margin-top: 90px;
}

.container {
  max-width: 1240px;
  width: 100%;
  padding-left: 24px;
  padding-right: 24px;
  margin-left: auto;
  margin-right: auto;
  position: relative;
  z-index: 1;
}

[v-cloak] {
  display: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1080;
  background: rgba(7, 13, 21, 0.82);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(148, 205, 255, 0.12);
  transition: box-shadow 0.3s ease, background 0.3s ease;
}

.site-header.scrolled {
  background: rgba(7, 13, 21, 0.92);
  box-shadow: 0 10px 34px rgba(0, 0, 0, 0.24);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  gap: 16px;
}

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

.brand-symbol {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 28%, #34E3FF 0%, #8A7BFF 55%, #102338 100%);
  box-shadow: 0 0 20px rgba(52, 227, 255, 0.32), inset 0 0 8px rgba(255, 255, 255, 0.14);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 19px;
  color: #fff;
  line-height: 1;
  text-shadow: 0 1px 6px rgba(0, 0, 0, 0.18);
}

.brand-name {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--text-1);
  line-height: 1.2;
}

.brand-name small {
  display: block;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--text-3);
  margin-top: 2px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.main-nav .nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 16px;
  font-size: 15px;
  color: var(--text-2);
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  position: relative;
  transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.main-nav .nav-link i {
  font-size: 14px;
  opacity: 0.75;
}

.main-nav .nav-link:hover {
  color: var(--text-1);
  background: rgba(148, 205, 255, 0.08);
}

.main-nav .nav-link.active {
  color: #fff;
  background: rgba(148, 205, 255, 0.10);
  border-color: rgba(148, 205, 255, 0.22);
  box-shadow: inset 0 0 0 1px rgba(52, 227, 255, 0.10);
}

.main-nav .nav-link.active::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 4px;
  transform: translateX(-50%);
  width: 18px;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), transparent);
  border-radius: var(--radius-pill);
}

.header-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  background: rgba(52, 227, 255, 0.08);
  border: 1px solid rgba(52, 227, 255, 0.26);
  transition: all 0.22s ease;
  white-space: nowrap;
}

.header-cta:hover {
  background: rgba(52, 227, 255, 0.18);
  color: #d9f8ff;
  box-shadow: 0 0 18px rgba(52, 227, 255, 0.18);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  background: rgba(148, 205, 255, 0.08);
  border: 1px solid var(--glass-border);
  color: var(--text-1);
  font-size: 20px;
  border-radius: 50%;
  cursor: pointer;
}

.mobile-nav {
  background: rgba(9, 17, 28, 0.98);
  border-top: 1px solid var(--glass-border);
  padding: 14px 22px 22px;
}

.mobile-nav.inner-link {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.mobile-nav .nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 16px;
  color: var(--text-2);
  border-radius: var(--radius-md);
  font-size: 15px;
}

.mobile-nav .nav-link:hover,
.mobile-nav .nav-link.active {
  color: #fff;
  background: rgba(52, 227, 255, 0.08);
}

.btn-main,
.btn-ghost,
.btn-soft {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-size: 15px;
  font-weight: 600;
  min-height: 46px;
  padding: 0 24px;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
  cursor: pointer;
  outline: none;
}

.btn-main {
  background: linear-gradient(135deg, rgba(52, 227, 255, 0.92), rgba(52, 227, 255, 0.7));
  color: #041018;
  box-shadow: 0 8px 22px rgba(52, 227, 255, 0.22);
}

.btn-main:hover {
  transform: translateY(-2px);
  color: #041018;
  box-shadow: 0 0 32px var(--primary-glow);
}

.btn-main:active {
  transform: scale(0.97);
}

.btn-ghost {
  background: rgba(148, 205, 255, 0.08);
  border-color: var(--glass-border);
  color: var(--text-1);
}

.btn-ghost:hover {
  background: var(--glass-hover);
  border-color: rgba(148, 205, 255, 0.3);
  color: #fff;
  transform: translateY(-2px);
}

.btn-soft {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.14);
  color: var(--text-2);
  min-height: 38px;
  padding: 0 16px;
  font-size: 13px;
}

.btn-soft:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
}

.badge-series {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 11px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-2);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.02em;
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.badge-series::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 8px var(--primary-glow);
}

.badge-series.hot::before {
  background: var(--hot);
  box-shadow: 0 0 8px rgba(255, 122, 107, 0.6);
}

.badge-series.new::before {
  background: var(--online);
  box-shadow: 0 0 8px rgba(105, 240, 174, 0.6);
}

.badge-series.pick::before {
  background: var(--warning);
  box-shadow: 0 0 8px rgba(255, 195, 107, 0.6);
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--primary);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-label i {
  font-size: 12px;
}

.section-title {
  font-size: clamp(1.7rem, 3.2vw, 2.4rem);
  font-weight: 700;
  color: var(--text-1);
  letter-spacing: -0.02em;
  line-height: 1.3;
  margin: 0 0 12px 0;
}

.section-desc {
  font-size: 1.02rem;
  color: var(--text-2);
  max-width: 640px;
  margin-bottom: 0;
}

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 36px;
}

.hero {
  position: relative;
  min-height: min(780px, 94vh);
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.webp');
  background-position: center;
  background-size: cover;
  opacity: 0.22;
  z-index: 0;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    radial-gradient(500px 360px at 72% 32%, var(--primary-glow), transparent 70%),
    radial-gradient(520px 400px at 12% 90%, rgba(138, 123, 255, 0.17), transparent 70%),
    linear-gradient(90deg, rgba(7, 13, 21, 0.55) 10%, rgba(7, 13, 21, 0.16) 60%, rgba(7, 13, 21, 0.55) 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.5fr;
  align-items: center;
  gap: 64px;
  width: 100%;
}

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

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 500;
  color: var(--secondary);
  background: rgba(138, 123, 255, 0.1);
  border: 1px solid rgba(138, 123, 255, 0.22);
  padding: 7px 15px;
  border-radius: var(--radius-pill);
  margin-bottom: 26px;
  letter-spacing: 0.04em;
}

.hero-eyebrow i {
  font-size: 13px;
  color: var(--primary);
}

.hero-title {
  font-size: clamp(2.2rem, 4.5vw, 3.4rem);
  line-height: 1.22;
  font-weight: 800;
  color: var(--text-1);
  margin: 0 0 18px 0;
  letter-spacing: -0.03em;
}

.hero-title span {
  color: var(--primary);
  text-shadow: 0 0 22px var(--primary-glow);
}

.hero-sub {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-2);
  max-width: 620px;
  margin: 0 0 30px 0;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
  margin-bottom: 28px;
}

.hero-trust {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 26px;
}

.hero-trust li {
  font-size: 13px;
  color: var(--text-3);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.hero-trust i {
  color: var(--online);
  font-size: 14px;
}

.hero-device {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: center;
}

.device-frame {
  width: 318px;
  height: 648px;
  border-radius: 46px;
  padding: 12px;
  background: linear-gradient(145deg, rgba(148, 205, 255, 0.16), rgba(20, 36, 56, 0.6));
  box-shadow: 0 40px 90px rgba(0, 0, 0, 0.38), 0 0 0 1px rgba(148, 205, 255, 0.12), 0 0 60px rgba(52, 227, 255, 0.09);
  border: 1px solid rgba(148, 205, 255, 0.18);
}

.device-screen {
  width: 100%;
  height: 100%;
  border-radius: 34px;
  background: var(--bg-0);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  position: relative;
  border: 1px solid rgba(148, 205, 255, 0.12);
}

.screen-notch {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 110px;
  height: 26px;
  background: #152233;
  border-radius: 0 0 18px 18px;
  z-index: 5;
}

.device-screen-top {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 30px 18px 14px;
  border-bottom: 1px solid rgba(148, 205, 255, 0.1);
}

.screen-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(145deg, var(--primary), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  color: #06121c;
  flex-shrink: 0;
}

.screen-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-1);
  flex: 1;
}

.screen-title small {
  display: block;
  font-size: 10px;
  color: var(--text-3);
  font-weight: 400;
}

.screen-icons {
  color: var(--text-3);
  font-size: 15px;
  display: inline-flex;
  gap: 8px;
}

.device-feed {
  flex: 1;
  overflow: hidden;
  padding: 14px 14px 10px;
  display: flex;
  flex-direction: column;
  gap: 13px;
}

.feed-card {
  display: flex;
  gap: 11px;
  background: rgba(148, 205, 255, 0.05);
  border: 1px solid rgba(148, 205, 255, 0.08);
  border-radius: 16px;
  padding: 10px;
  transition: background 0.2s ease;
}

.feed-card:hover {
  background: rgba(148, 205, 255, 0.1);
}

.feed-thumb {
  width: 64px;
  height: 78px;
  border-radius: 11px;
  background-size: cover;
  background-position: center;
  flex-shrink: 0;
  position: relative;
}

.feed-thumb::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.2));
  border-radius: inherit;
}

.feed-main {
  flex: 1;
  min-width: 0;
}

.feed-main h4 {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-1);
  line-height: 1.4;
  margin: 0 0 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.feed-tag {
  display: inline-block;
  font-size: 10px;
  color: var(--primary);
  background: rgba(52, 227, 255, 0.1);
  border-radius: 5px;
  padding: 2px 7px;
  margin-bottom: 8px;
}

.feed-meta {
  display: flex;
  gap: 8px;
  align-items: center;
  font-size: 10px;
  color: var(--text-3);
}

.feed-meta i {
  color: var(--primary);
  font-size: 9px;
}

.screen-tabbar {
  border-top: 1px solid rgba(148, 205, 255, 0.1);
  display: flex;
  justify-content: space-around;
  padding: 9px 10px;
  color: var(--text-3);
  background: rgba(7, 13, 21, 0.5);
}

.screen-tabbar i {
  font-size: 15px;
}

.screen-tabbar span {
  font-size: 9px;
  display: block;
  text-align: center;
}

.screen-tabbar .tab-active {
  color: var(--primary);
}

.hot-section {
  padding-top: var(--space-section);
  padding-bottom: var(--space-section);
  position: relative;
}

.hot-scroll-area {
  overflow-x: auto;
  padding-bottom: 18px;
  scrollbar-width: thin;
  scrollbar-color: rgba(52, 227, 255, 0.25) transparent;
  margin-right: -24px;
  margin-left: -24px;
  padding-left: 24px;
  padding-right: 24px;
}

.hot-scroll-area::-webkit-scrollbar {
  height: 6px;
}

.hot-scroll-area::-webkit-scrollbar-thumb {
  background: rgba(52, 227, 255, 0.22);
  border-radius: 20px;
}

.hot-track {
  display: flex;
  gap: 20px;
  scroll-snap-type: x proximity;
  min-width: max-content;
}

.hot-card {
  width: 218px;
  scroll-snap-align: start;
  background: var(--bg-2);
  border-radius: var(--radius-lg);
  border: 1px solid var(--glass-border);
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  position: relative;
  flex-shrink: 0;
}

.hot-card:hover {
  transform: translateY(-7px);
  border-color: rgba(52, 227, 255, 0.45);
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(52, 227, 255, 0.1);
}

.hot-thumb {
  height: 258px;
  overflow: hidden;
  position: relative;
  background: #0c1b2b;
}

.hot-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.hot-thumb::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7, 13, 21, 0.05) 20%, rgba(7, 13, 21, 0.52) 70%, rgba(7, 13, 21, 0.82) 100%);
  pointer-events: none;
}

.hot-badge {
  position: absolute;
  left: 12px;
  top: 12px;
  z-index: 2;
}

.hot-play {
  position: absolute;
  left: 50%;
  top: 42%;
  transform: translate(-50%, -50%);
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(52, 227, 255, 0.18);
  backdrop-filter: blur(6px);
  border: 1px solid rgba(52, 227, 255, 0.65);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 14px;
  z-index: 2;
  box-shadow: 0 0 16px var(--primary-glow);
  transition: transform 0.2s ease, background 0.2s ease;
}

.hot-play i {
  margin-left: 3px;
}

.hot-card:hover .hot-play {
  transform: translate(-50%, -50%) scale(1.08);
  background: rgba(52, 227, 255, 0.35);
}

.hot-info {
  padding: 15px 15px 16px;
  position: relative;
}

.hot-info::before,
.hot-info::after {
  content: "";
  position: absolute;
  right: 14px;
  height: 1px;
  background: linear-gradient(90deg, rgba(52, 227, 255, 0.25), transparent);
  left: 14px;
}

.hot-info::before {
  top: 7px;
}

.hot-info::after {
  bottom: 5px;
  height: 1px;
  opacity: 0.5;
}

.hot-info h3 {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--text-1);
  margin: 0 0 14px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 45px;
}

.hot-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  font-size: 12px;
  color: var(--text-3);
}

.hot-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 500;
  color: var(--primary);
}

.hot-link i {
  transition: transform 0.2s ease;
}

.hot-link:hover i {
  transform: translateX(3px);
}

.online-count {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--online);
  font-size: 12px;
}

.guide-section {
  padding-top: var(--space-section);
  padding-bottom: var(--space-section);
  background: rgba(12, 24, 38, 0.35);
  border-top: 1px solid rgba(148, 205, 255, 0.06);
  border-bottom: 1px solid rgba(148, 205, 255, 0.06);
  position: relative;
}

.guide-wrap {
  position: relative;
  padding: 10px 0;
}

.timeline-guide {
  position: relative;
  max-width: 880px;
  margin: 0 auto;
}

.timeline-guide::before {
  content: "";
  position: absolute;
  left: 32px;
  top: 24px;
  bottom: 24px;
  width: 1px;
  background: linear-gradient(180deg, var(--primary), rgba(138, 123, 255, 0.25), transparent);
  opacity: 0.45;
}

.timeline-item {
  display: flex;
  gap: 22px;
  position: relative;
  margin-bottom: 30px;
}

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

.timeline-num {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  flex-shrink: 0;
  background: linear-gradient(145deg, rgba(52, 227, 255, 0.2), rgba(138, 123, 255, 0.15));
  border: 1px solid rgba(52, 227, 255, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 15px;
  color: var(--primary);
  box-shadow: 0 0 16px rgba(52, 227, 255, 0.12);
  z-index: 2;
}

.timeline-card {
  flex: 1;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 22px 24px;
  transition: border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
  position: relative;
}

.timeline-card:hover {
  border-color: rgba(52, 227, 255, 0.35);
  background: rgba(148, 205, 255, 0.07);
  transform: translateX(4px);
}

.timeline-card h3 {
  font-size: 17px;
  font-weight: 650;
  color: var(--text-1);
  margin: 0 0 7px;
}

.timeline-card p {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.7;
  margin: 0;
}

.timeline-card .guide-link {
  font-size: 13px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 12px;
  font-weight: 500;
}

.review-section {
  padding-top: var(--space-section);
  padding-bottom: var(--space-section);
  overflow: hidden;
}

.review-marquee {
  position: relative;
  overflow: hidden;
  padding: 10px 0;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}

.review-track {
  display: flex;
  gap: 20px;
  width: max-content;
  animation: reviewScroll 34s linear infinite;
}

.review-track:hover {
  animation-play-state: paused;
}

@keyframes reviewScroll {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

.review-pill {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 20px 22px;
  width: 330px;
  flex-shrink: 0;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.review-pill:hover {
  border-color: rgba(52, 227, 255, 0.4);
  background: rgba(148, 205, 255, 0.07);
}

.review-pill-top {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.review-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: linear-gradient(145deg, #203a56, #102338);
  border: 1px solid rgba(52, 227, 255, 0.2);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
}

.review-avatar.green {
  color: var(--online);
  border-color: rgba(105, 240, 174, 0.3);
}

.review-avatar.purple {
  color: var(--secondary);
  border-color: rgba(138, 123, 255, 0.3);
}

.review-person {
  font-size: 14px;
  color: var(--text-1);
  font-weight: 600;
}

.review-person small {
  display: block;
  color: var(--text-3);
  font-size: 11px;
  font-weight: 400;
}

.review-stars {
  color: #FFC36B;
  font-size: 12px;
  margin-left: auto;
  display: inline-flex;
  gap: 2px;
}

.review-text {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.75;
  margin: 0;
}

.news-section {
  padding-top: var(--space-section);
  padding-bottom: var(--space-section);
  position: relative;
}

.news-layout {
  gap: 30px;
  align-items: stretch;
}

.feature-news {
  height: 100%;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: block;
  transition: border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}

.feature-news:hover {
  border-color: rgba(52, 227, 255, 0.42);
  transform: translateY(-5px);
  box-shadow: var(--card-shadow);
}

.feature-thumb {
  aspect-ratio: 16 / 9;
  background-size: cover;
  background-position: center;
  position: relative;
}

.feature-thumb::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(7, 13, 21, 0.72) 100%);
}

.feature-thumb .badge-series {
  position: absolute;
  left: 16px;
  top: 16px;
  z-index: 2;
  background: rgba(7, 13, 21, 0.55);
  border-color: rgba(255, 255, 255, 0.16);
}

.feature-pub {
  position: absolute;
  right: 16px;
  bottom: 13px;
  z-index: 2;
  font-size: 13px;
  color: rgba(234, 243, 255, 0.85);
  background: rgba(7, 13, 21, 0.4);
  padding: 4px 12px;
  border-radius: 999px;
  backdrop-filter: blur(4px);
}

.feature-body {
  padding: 22px 22px 24px;
}

.feature-body h3 {
  font-size: 21px;
  font-weight: 700;
  color: var(--text-1);
  margin: 0 0 10px;
  line-height: 1.4;
}

.feature-body p {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.75;
  margin: 0 0 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.feature-more {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
}

.news-side-list {
  display: flex;
  flex-direction: column;
}

.news-row {
  display: flex;
  flex-direction: column;
  gap: 8px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 17px 19px;
  margin-bottom: 10px;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.news-row:last-child {
  margin-bottom: 0;
}

.news-row:hover {
  border-color: rgba(52, 227, 255, 0.32);
  background: rgba(148, 205, 255, 0.07);
  transform: translateY(-2px);
}

.news-row-top {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.news-row h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-1);
  line-height: 1.5;
  margin: 0;
}

.news-row p {
  display: none;
  font-size: 13px;
  color: var(--text-3);
  margin: 0;
}

.news-row-bottom {
  font-size: 12px;
  color: var(--text-3);
  display: inline-flex;
  gap: 18px;
  align-items: center;
}

.news-row-bottom i {
  color: var(--primary);
  font-size: 11px;
  margin-right: 4px;
}

.news-empty {
  border: 1px dashed rgba(148, 205, 255, 0.25);
  border-radius: var(--radius-lg);
  background: var(--glass-bg);
  padding: 56px 28px;
  text-align: center;
  color: var(--text-2);
}

.news-empty i {
  display: block;
  font-size: 30px;
  color: var(--text-3);
  margin-bottom: 12px;
}

.faq-section {
  padding-top: var(--space-section);
  padding-bottom: var(--space-section);
  background: rgba(12, 24, 38, 0.3);
  border-top: 1px solid rgba(148, 205, 255, 0.06);
  border-bottom: 1px solid rgba(148, 205, 255, 0.06);
}

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

.accordion-item {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  overflow: hidden;
}

.accordion-button {
  background: transparent;
  color: var(--text-1);
  font-size: 16px;
  font-weight: 600;
  padding: 20px 24px;
  border: none;
  box-shadow: none;
  line-height: 1.5;
}

.accordion-button:not(.collapsed) {
  color: var(--primary);
  background: rgba(52, 227, 255, 0.05);
  box-shadow: none;
}

.accordion-button:focus,
.accordion-button:active {
  box-shadow: none;
  border: none;
  outline: none;
}

.accordion-button::after {
  background-image: none;
  content: "+";
  font-size: 22px;
  font-weight: 300;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  transition: all 0.2s ease;
}

.accordion-button:not(.collapsed)::after {
  content: "−";
  color: var(--primary);
}

.accordion-body {
  color: var(--text-2);
  font-size: 15px;
  line-height: 1.75;
  padding: 0 24px 22px;
}

.cta-section {
  padding-top: clamp(3rem, 6vw, 5rem);
  padding-bottom: clamp(3rem, 6vw, 5rem);
}

.cta-pill {
  max-width: 980px;
  margin: 0 auto;
  border-radius: 26px;
  border: 1px solid rgba(52, 227, 255, 0.22);
  background:
    radial-gradient(700px 190px at 90% 10%, rgba(52, 227, 255, 0.14), transparent 60%),
    radial-gradient(500px 200px at 10% 90%, rgba(138, 123, 255, 0.12), transparent 55%),
    rgba(148, 205, 255, 0.055);
  padding: clamp(26px, 4vw, 46px) clamp(24px, 5vw, 60px);
  text-align: center;
}

.cta-pill h2 {
  font-size: clamp(1.3rem, 2.4vw, 1.8rem);
  color: var(--text-1);
  font-weight: 700;
  margin: 0 0 12px;
}

.cta-pill p {
  color: var(--text-2);
  margin: 0 auto 24px;
  max-width: 540px;
  font-size: 15px;
}

.cta-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

.site-footer {
  background: rgba(5, 10, 18, 0.7);
  border-top: 1px solid rgba(148, 205, 255, 0.12);
  padding: 54px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 30px;
}

.footer-brand .brand {
  margin-bottom: 14px;
}

.footer-desc {
  color: var(--text-2);
  font-size: 14px;
  line-height: 1.8;
  margin: 0 0 20px;
  max-width: 360px;
}

.footer-nav-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-1);
  margin: 8px 0 18px;
}

.footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  color: var(--text-3);
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: color 0.2s ease, transform 0.2s ease;
}

.footer-links a i {
  font-size: 11px;
  color: var(--text-3);
}

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

.footer-bottom {
  border-top: 1px solid rgba(148, 205, 255, 0.1);
  padding-top: 22px;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: var(--text-3);
}

.footer-bottom span a {
  color: var(--text-3);
}

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

.back-top {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 1090;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 1px solid rgba(52, 227, 255, 0.4);
  background: rgba(7, 13, 21, 0.7);
  color: var(--primary);
  font-size: 18px;
  cursor: pointer;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.22);
}

.back-top:hover {
  background: rgba(52, 227, 255, 0.18);
  transform: translateY(-4px);
  box-shadow: 0 0 26px var(--primary-glow);
}

@media (max-width: 1199px) {
  .hero-grid {
    gap: 40px;
    grid-template-columns: 1.1fr 0.45fr;
  }

  .device-frame {
    width: 290px;
    height: 600px;
  }
}

@media (max-width: 991px) {
  .main-nav {
    display: none;
  }

  .header-cta {
    display: none;
  }

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

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-device {
    order: 2;
  }

  .device-frame {
    width: 300px;
    height: 620px;
  }

  .hero {
    padding: 100px 0 60px;
  }

  .news-layout {
    gap: 24px;
  }

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

@media (max-width: 767px) {
  .hero {
    min-height: auto;
    padding-top: 74px;
  }

  .hero-title {
    font-size: clamp(1.75rem, 7vw, 2.25rem);
  }

  .hero-sub {
    font-size: 1rem;
  }

  .device-frame {
    margin: 0 auto;
    width: 288px;
    height: 600px;
  }

  .timeline-guide::before {
    left: 23px;
  }

  .timeline-num {
    width: 38px;
    height: 38px;
    font-size: 14px;
  }

  .review-pill {
    width: 290px;
  }

  .section-title {
    font-size: 1.5rem;
  }

  .section-desc {
    font-size: 14px;
    line-height: 1.7;
  }

  .cta-pill h2 {
    font-size: 1.25rem;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 26px;
  }

  .footer-bottom {
    justify-content: center;
    text-align: center;
  }
}

@media (max-width: 520px) {
  .hot-scroll-area {
    margin-right: -16px;
    margin-left: -16px;
    padding-left: 16px;
    padding-right: 16px;
  }
}

/* roulang page: article */
:root{
  --bg-0:#070D15;
  --bg-1:#0C1826;
  --bg-2:#102338;
  --glass-bg:rgba(145, 190, 230, 0.055);
  --glass-border:rgba(148, 205, 255, 0.14);
  --glass-hover:rgba(148, 205, 255, 0.10);
  --primary:#34E3FF;
  --primary-glow:rgba(52,227,255,0.35);
  --secondary:#8A7BFF;
  --online:#69F0AE;
  --warning:#FFC36B;
  --hot:#FF7A6B;
  --text-1:#EAF3FF;
  --text-2:#A0B8D0;
  --text-3:#65809B;
  --radius-sm:10px;
  --radius-md:18px;
  --radius-lg:20px;
  --radius-pill:999px;
  --card-shadow:0 16px 40px rgba(0,0,0,0.25);
  --btn-shadow:0 0 32px var(--primary-glow);
  --transition:.28s ease;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background:
    radial-gradient(820px 420px at 92% -5%, rgba(52,227,255,.14), transparent 62%),
    radial-gradient(700px 420px at 0% 108%, rgba(138,123,255,.11), transparent 62%),
    radial-gradient(rgba(255,255,255,.024) 1px, transparent 1px);
  background-size:auto,auto,22px 22px;
  z-index:0;
}
body::after{
  content:"";
  position:fixed;
  inset:auto 0 0;
  height:1px;
  background:linear-gradient(90deg,transparent,var(--primary),var(--secondary),transparent);
  opacity:.28;
  pointer-events:none;
  z-index:20;
}
a{color:var(--primary);text-decoration:none;transition:color var(--transition)}
a:hover{color:#c4f4ff}
img{max-width:100%;height:auto;border:0}
.container{max-width:1240px;padding-left:24px;padding-right:24px}
.container-fluid{max-width:1240px}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:4px}

/* ===== Header / Nav ===== */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1000;
  background:rgba(7,13,21,.72);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(148,205,255,.13);
  transition:background var(--transition),box-shadow var(--transition);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:76px;
  gap:20px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:11px;
  flex:0 0 auto;
}
.brand-symbol{
  position:relative;
  display:grid;
  place-items:center;
  width:42px;height:42px;
  border-radius:50%;
  font-size:18px;
  font-weight:800;
  color:#06151f;
  background:radial-gradient(circle at 34% 24%,#bff4ff 0%,var(--primary) 32%,#009fc5 78%);
  box-shadow:0 0 18px rgba(52,227,255,.4), inset 0 1px 1px rgba(255,255,255,.65);
}
.brand-symbol::after{
  content:"";
  position:absolute;inset:-5px;
  border-radius:inherit;
  border:1px solid rgba(52,227,255,.25);
  opacity:.6;
}
.brand-symbol::before{
  content:"";
  position:absolute;inset:-10px;
  border-radius:inherit;
  border:1px dashed rgba(52,227,255,.12);
}
.brand-name{
  color:var(--text-1);
  font-size:20px;
  font-weight:800;
  letter-spacing:.5px;
  white-space:nowrap;
  background:linear-gradient(90deg,#ffffff,var(--primary));
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;
}
.brand:hover .brand-name{opacity:.9}
.brand-link{
  display:inline-flex;
  align-items:center;
  gap:10px;
}
.nav-panel{
  display:flex;
  align-items:center;
  gap:12px;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:4px;
  list-style:none;
}
.nav-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 15px;
  border-radius:999px;
  font-size:15px;
  color:var(--text-2);
  font-weight:500;
  border:1px solid transparent;
  background:transparent;
  transition:all .24s ease;
  position:relative;
}
.nav-link i{
  font-size:14px;
  color:var(--text-3);
  transition:color .24s;
}
.nav-link:hover{
  color:var(--text-1);
  background:var(--glass-bg);
  border-color:var(--glass-border);
}
.nav-link:hover i{color:var(--primary)}
.nav-link.active{
  color:#fff;
  background:rgba(148,205,255,.10);
  border-color:rgba(148,205,255,.20);
}
.nav-link.active i{color:var(--primary)}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:18px;right:18px;bottom:2px;
  height:2px;
  border-radius:4px;
  background:linear-gradient(90deg,var(--primary),transparent);
}
.header-access{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 16px;
  border-radius:999px;
  color:var(--text-1);
  background:linear-gradient(135deg,rgba(52,227,255,.17),rgba(138,123,255,.12));
  border:1px solid rgba(52,227,255,.32);
  font-size:13px;
  font-weight:600;
  box-shadow:0 0 16px rgba(52,227,255,.12);
}
.header-access .pulse-dot{
  display:block;
  width:7px;height:7px;
  border-radius:50%;
  background:var(--online);
  box-shadow:0 0 0 0 rgba(105,240,174,.7);
  animation:dotPulse 2s infinite;
}
@keyframes dotPulse{
  0%{box-shadow:0 0 0 0 rgba(105,240,174,.58)}
  75%{box-shadow:0 0 0 8px rgba(105,240,174,0)}
  100%{box-shadow:0 0 0 0 rgba(105,240,174,0)}
}
.header-access:hover{
  border-color:var(--primary);
  background:rgba(52,227,255,.22);
  box-shadow:0 0 22px rgba(52,227,255,.16);
  color:#fff;
}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:14px;
  background:rgba(148,205,255,.07);
  border:1px solid rgba(148,205,255,.18);
  color:var(--text-1);
  align-items:center;
  justify-content:center;
  font-size:20px;
  cursor:pointer;
  z-index:1105;
}

/* ===== layout ===== */
.article-page-main{
  position:relative;
  z-index:1;
}
.article-banner{
  position:relative;
  margin-top:76px;
  padding:56px 0 44px;
  background:
    linear-gradient(105deg,rgba(7,13,21,.94) 0%,rgba(12,24,38,.82) 64%,rgba(16,35,56,.65) 100%),
    url('/assets/images/backpic/back-2.png') center right / cover no-repeat;
}
.article-banner::before{
  content:"";
  position:absolute;
  top:0;left:0;
  width:100%;height:1px;
  background:linear-gradient(90deg,transparent,var(--primary),transparent);
  opacity:.45;
}
.article-banner::after{
  content:"";
  position:absolute;
  inset:auto 0 -42px;
  height:90px;
  background:radial-gradient(60% 60% at 50% 0%, rgba(52,227,255,.07), transparent 70%);
  pointer-events:none;
}
.article-banner .crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  margin-bottom:18px;
  font-size:13px;
  color:var(--text-3);
}
.article-banner .crumbs a{
  color:var(--text-2);
}
.article-banner .crumbs a:hover{color:var(--primary)}
.article-banner .crumbs .sep{color:var(--text-3);opacity:.75}
.article-banner .crumbs .current{
  color:var(--text-2);
  max-width:260px;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.article-title-wrap{max-width:880px}
.article-title-wrap .kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 12px;
  background:rgba(52,227,255,.10);
  border:1px solid rgba(52,227,255,.28);
  border-radius:999px;
  color:var(--primary);
  font-size:13px;
  margin-bottom:18px;
  font-weight:600;
}
.article-title-wrap .kicker i{font-size:12px}
.article-title-wrap h1{
  color:var(--text-1);
  font-weight:800;
  font-size:clamp(1.65rem,3vw,2.6rem);
  line-height:1.375;
  letter-spacing:.2px;
  margin:0 0 22px;
}
.article-meta-line{
  display:flex;
  flex-wrap:wrap;
  gap:12px 26px;
  color:var(--text-2);
  font-size:14px;
  align-items:center;
}
.article-meta-line span i{
  color:var(--primary);
  margin-right:6px;
  font-size:13px;
}
.meta-cat{
  display:inline-flex;
  align-items:center;
  background:rgba(148,205,255,.07);
  border:1px solid rgba(148,205,255,.16);
  padding:3px 12px;
  border-radius:999px;
  font-size:13px;
  color:var(--text-1);
}
.meta-cat i{color:var(--warning)!important}

/* ===== Main article ===== */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 332px;
  gap:40px;
  padding-top:52px;
  padding-bottom:72px;
}
.article-main-col{min-width:0}
.article-card{
  background:linear-gradient(180deg,rgba(16,35,56,.48),rgba(12,24,38,.35));
  border:1px solid var(--glass-border);
  border-radius:var(--radius-lg);
  padding:42px clamp(24px,4vw,54px);
  box-shadow:var(--card-shadow);
  position:relative;
  overflow:hidden;
}
.article-card::before{
  content:"";
  position:absolute;
  top:0;left:44px;
  width:138px;height:2px;
  background:linear-gradient(90deg,var(--primary),transparent);
}
.article-body p{
  color:#cbd9e9;
  line-height:1.9;
  margin:0 0 22px;
  font-size:16px;
}
.article-body h2,
.article-body h3,
.article-body h4{
  color:var(--text-1);
  line-height:1.5;
  margin:2.2em 0 .8em;
  font-weight:700;
}
.article-body h2{font-size:1.55rem;padding-left:14px;border-left:3px solid var(--primary)}
.article-body h3{font-size:1.24rem}
.article-body h4{font-size:1.05rem;color:var(--primary)}
.article-body ul,
.article-body ol{padding-left:1.2em;margin:0 0 24px}
.article-body li{margin-bottom:7px;color:#cbd9e9}
.article-body li::marker{color:var(--primary)}
.article-body blockquote{
  border-left:3px solid var(--secondary);
  background:rgba(138,123,255,.07);
  padding:16px 22px;
  border-radius:0 var(--radius-md) var(--radius-md) 0;
  color:var(--text-2);
  margin:0 0 24px;
}
.article-body a{text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{text-decoration:none}
.article-body img{
  border-radius:var(--radius-md);
  border:1px solid rgba(148,205,255,.13);
  margin:14px 0;
}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:20px 0;
  color:var(--text-2);
  font-size:14.5px;
}
.article-body th{
  background:rgba(52,227,255,.12);
  color:var(--text-1);
  font-weight:600;
}
.article-body th,.article-body td{
  border:1px solid rgba(148,205,255,.16);
  padding:10px 14px;
  text-align:left;
}
.article-body code{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(148,205,255,.1);
  color:var(--primary);
  border-radius:6px;
  padding:2px 7px;
  font-size:.92em;
}
.article-body pre{
  background:rgba(3,9,17,.72);
  border:1px solid rgba(148,205,255,.14);
  border-radius:14px;
  padding:18px;
  overflow-x:auto;
  margin:20px 0 26px;
}
.article-body hr{
  opacity:.15;
  border-color:var(--primary);
  margin:34px 0;
}
.article-empty-state{
  text-align:center;
  padding:58px 12px 46px;
}
.article-empty-state .empty-icon{
  width:72px;height:72px;
  margin:0 auto 22px;
  display:grid;place-items:center;
  font-size:30px;
  border-radius:24px;
  color:var(--primary);
  background:rgba(52,227,255,.08);
  border:1px solid rgba(52,227,255,.2);
}
.article-empty-state h2{
  color:var(--text-1);
  font-weight:700;
  margin-bottom:10px;
  font-size:24px;
}
.article-empty-state p{color:var(--text-3);margin:0 0 25px}

/* ===== tags & share ===== */
.article-tag-bar{
  margin-top:36px;
  padding-top:24px;
  border-top:1px solid rgba(148,205,255,.09);
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
}
.article-tag-bar .tag-title{
  font-size:13px;color:var(--text-3);
  margin-right:6px;
}
.chip{
  display:inline-flex;
  align-items:center;
  gap:5px;
  padding:4px 12px;
  border-radius:999px;
  font-size:12.5px;
  color:var(--text-2);
  background:rgba(148,205,255,.06);
  border:1px solid rgba(148,205,255,.13);
  transition:var(--transition);
}
.chip:hover{color:var(--primary);border-color:rgba(52,227,255,.34)}
.article-nav-cards{
  margin-top:22px;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:14px;
}
.article-nav-card{
  background:rgba(148,205,255,.035);
  border:1px solid var(--glass-border);
  border-radius:var(--radius-md);
  padding:18px;
  transition:var(--transition);
  display:flex;
  align-items:center;
  gap:16px;
}
.article-nav-card:hover{
  background:var(--glass-hover);
  border-color:rgba(52,227,255,.3);
  transform:translateY(-3px);
}
.article-nav-card .icon-circle{
  width:46px;height:46px;
  flex:0 0 auto;
  display:grid;place-items:center;
  border-radius:15px;
  color:var(--primary);
  background:rgba(52,227,255,.09);
  border:1px solid rgba(52,227,255,.18);
  font-size:18px;
}
.article-nav-card .nav-copy strong{
  color:var(--text-1);font-size:15px;
  display:block;
  margin-bottom:2px;
}
.article-nav-card .nav-copy small{color:var(--text-3);font-size:12.5px}

/* ===== Sidebar ===== */
.article-side-col{display:flex;flex-direction:column;gap:24px}
.side-sticky{position:sticky;top:108px;display:flex;flex-direction:column;gap:24px}
.side-card{
  background:rgba(16,35,56,.42);
  border:1px solid var(--glass-border);
  border-radius:var(--radius-md);
  padding:24px;
}
.side-card .side-title{
  display:flex;
  align-items:center;
  justify-content:space-between;
  color:var(--text-1);
  font-size:15.5px;
  font-weight:600;
  letter-spacing:.3px;
  margin:0 0 18px;
}
.side-card .side-title::after{
  content:"";
  display:block;
  width:28px;height:3px;
  background:linear-gradient(90deg,var(--primary),transparent);
  border-radius:4px;
}
.side-meta{list-style:none;padding:0;margin:0}
.side-meta li{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:14px;
  padding:11px 0;
  border-bottom:1px dashed rgba(148,205,255,.11);
  font-size:13.5px;
  color:var(--text-2);
}
.side-meta li:last-child{border-bottom:0}
.side-meta .label{color:var(--text-3)}
.side-meta .value{
  text-align:right;
  color:var(--text-1);
  max-width:60%;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.side-cat-list{display:grid;gap:2px}
.side-cat-list a{
  color:var(--text-2);
  font-size:15px;
  padding:11px 12px;
  border-radius:12px;
  display:flex;
  align-items:center;
  gap:9px;
  transition:var(--transition);
}
.side-cat-list a i{
  width:26px;height:26px;
  display:grid;place-items:center;
  border-radius:9px;
  background:rgba(52,227,255,.07);
  border:1px solid rgba(52,227,255,.1);
  color:var(--primary);
  font-size:11px;
}
.side-cat-list a:hover{
  background:rgba(52,227,255,.08);
  color:#fff;
  transform:translateX(3px);
}
.side-reco-list{display:grid;gap:15px}
.side-reco-item{
  display:flex;
  gap:12px;
  align-items:center;
  min-width:0;
  padding-bottom:14px;
  border-bottom:1px dashed rgba(148,205,255,.1);
}
.side-reco-item:last-child{border-bottom:0;padding-bottom:0}
.side-reco-item img{
  width:78px;height:56px;
  object-fit:cover;
  border-radius:11px;
  flex:0 0 auto;
  border:1px solid var(--glass-border);
}
.side-reco-item .reco-body{min-width:0}
.side-reco-item strong{
  display:block;
  color:var(--text-2);
  font-size:13.5px;
  line-height:1.55;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
  margin-bottom:4px;
}
.side-reco-item small{
  color:var(--text-3);
  font-size:11.5px;
  display:flex;
  gap:8px;align-items:center;
}
.side-notice{
  margin-top:-2px;
  padding:15px 18px;
  background:rgba(138,123,255,.06);
  border:1px solid rgba(138,123,255,.16);
  border-radius:var(--radius-md);
  color:var(--text-2);
  font-size:13px;
  display:flex;
  gap:10px;
}
.side-notice i{color:var(--secondary);font-size:16px;margin-top:2px}

/* ===== Related reading ===== */
.related-section{
  padding:66px 0 76px;
  background:rgba(12,24,38,.36);
  border-top:1px solid rgba(148,205,255,.07);
}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:34px;
  flex-wrap:wrap;
}
.section-eyebrow{
  color:var(--primary);
  font-size:13px;
  letter-spacing:3px;
  font-weight:600;
  margin-bottom:8px;
  display:flex;align-items:center;gap:8px;
}
.section-eyebrow::before{content:"";width:22px;height:1px;background:var(--primary);opacity:.7}
.section-head h2{
  font-size:clamp(1.55rem,2.4vw,2.05rem);
  font-weight:800;
  margin:0;
  color:var(--text-1);
  line-height:1.3;
}
.section-more{
  color:var(--text-2);
  font-size:14px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 16px;
  border-radius:999px;
  border:1px solid rgba(148,205,255,.15);
  transition:var(--transition);
}
.section-more:hover{color:var(--primary);border-color:rgba(52,227,255,.4)}
.reco-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:22px;
}
.reco-card{
  background:linear-gradient(180deg,rgba(16,35,56,.52),rgba(12,24,38,.25));
  border:1px solid var(--glass-border);
  border-radius:var(--radius-lg);
  overflow:hidden;
  transition:all .32s ease;
  display:flex;
  flex-direction:column;
}
.reco-card:hover{
  transform:translateY(-5px);
  border-color:rgba(52,227,255,.34);
  background:rgba(16,35,56,.8);
  box-shadow:0 20px 44px rgba(0,0,0,.32),0 0 22px rgba(52,227,255,.07);
}
.reco-card .photo{
  position:relative;
  display:block;
  aspect-ratio:16/10;
  overflow:hidden;
  border-bottom:1px solid rgba(148,205,255,.08);
}
.reco-card .photo img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.reco-card:hover .photo img{transform:scale(1.05)}
.reco-card .photo::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(0deg,rgba(7,13,21,.42),transparent 44%);
}
.reco-card .tag-float{
  position:absolute;
  z-index:2;
  top:13px;left:13px;
  background:rgba(7,13,21,.68);
  backdrop-filter:blur(8px);
  border:1px solid var(--glass-border);
  color:#fff;
  font-size:12px;
  border-radius:999px;
  padding:3px 11px;
}
.reco-card .card-content{padding:20px 21px 22px;flex:1;display:flex;flex-direction:column}
.reco-card .card-title{
  color:var(--text-1);
  font-size:16.5px;
  font-weight:700;
  line-height:1.5;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin-bottom:9px;
}
.reco-card .card-desc{
  color:var(--text-3);
  font-size:13.5px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin-bottom:16px;
}
.reco-card .card-foot{
  margin-top:auto;
  display:flex;
  justify-content:space-between;
  align-items:center;
  font-size:12.5px;
  color:var(--text-3);
}
.reco-card .card-foot .walk{
  display:inline-flex;align-items:center;gap:7px;
  color:var(--primary);
}

/* ===== FAQ ===== */
.faq-zone{
  padding:76px 0 40px;
}
.faq-head-center{
  text-align:center;
  max-width:620px;
  margin:0 auto 44px;
}
.faq-head-center .section-eyebrow{justify-content:center}
.faq-head-center .section-eyebrow::before{display:none}
.faq-head-center h2{
  font-size:clamp(1.7rem,3vw,2.3rem);
  font-weight:800;
  margin:0 0 12px;
  color:var(--text-1);
}
.faq-head-center p{color:var(--text-3);margin:0}
.faq-layout{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px 20px;
  margin-bottom:40px;
}
.faq-item,.accordion-item{
  background:rgba(16,35,56,.35);
  border:1px solid var(--glass-border);
  border-radius:16px;
  overflow:hidden;
}
.accordion-item{margin-bottom:14px;background:rgba(16,35,56,.30)}
.faq-q{
  width:100%;
  background:transparent;
  border:0;
  color:var(--text-1);
  font-size:15px;
  font-weight:600;
  padding:20px 50px 20px 22px;
  text-align:left;
  position:relative;
  display:block;
  cursor:pointer;
  transition:color var(--transition);
  font-family:inherit;
}
.faq-q:hover{color:var(--primary)}
.faq-q::after{
  content:"+";
  position:absolute;
  right:20px;top:50%;
  transform:translateY(-50%);
  display:grid;place-items:center;
  width:25px;height:25px;
  border-radius:50%;
  background:rgba(52,227,255,.1);
  border:1px solid rgba(52,227,255,.18);
  color:var(--primary);
  font-size:14px;
  transition:all .25s;
}
.accordion-button:not(.collapsed)::after{
  content:"-";
  transform:translateY(-50%);
  background:var(--primary);
  color:#062233;
  border-color:var(--primary);
}
.faq-a{
  padding:0 22px 20px;
  color:var(--text-2);
  font-size:14.5px;
  line-height:1.85;
}
.accordion-body{color:var(--text-2);font-size:14.5px;border-top:1px solid rgba(148,205,255,.07);}

/* ===== CTA ===== */
.article-cta{
  position:relative;
  margin:0 0 32px;
  padding:34px 32px;
  border-radius:26px;
  background:
    radial-gradient(440px 160px at 90% 0%,rgba(138,123,255,.15),transparent 65%),
    radial-gradient(500px 180px at 4% 100%,rgba(52,227,255,.12),transparent 60%),
    linear-gradient(120deg,rgba(16,35,56,.85),rgba(9,20,34,.9));
  border:1px solid rgba(148,205,255,.18);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:26px;
  flex-wrap:wrap;
  box-shadow:var(--card-shadow);
}
.article-cta::before{
  content:"";
  position:absolute;
  top:-1px;left:32px;right:32px;height:1px;
  background:linear-gradient(90deg,transparent,var(--primary),transparent);
}
.article-cta .cta-icon{
  width:52px;height:52px;
  border-radius:18px;
  display:grid;place-items:center;
  background:rgba(52,227,255,.12);
  border:1px solid rgba(52,227,255,.25);
  color:var(--primary);
  font-size:21px;
  box-shadow:0 0 24px rgba(52,227,255,.15);
}
.article-cta .cta-copy h3{
  margin:0 0 5px;
  color:var(--text-1);
  font-size:18px;
  font-weight:700;
}
.article-cta .cta-copy p{margin:0;color:var(--text-3);font-size:13.5px}
.article-cta .cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* buttons */
.btn{
  --bs-btn-padding-y:9px;
  border-radius:999px;
  font-weight:600;
  transition:all .25s ease;
  border:1px solid transparent;
  letter-spacing:.2px;
}
.btn-lg{
  --bs-btn-padding-x:26px;
  --bs-btn-padding-y:12px;
  font-size:15px;
}
.btn-icon-gap{gap:8px}
.btn-primary{
  color:#071c29;
  background:linear-gradient(135deg,#7df1ff 0%,var(--primary) 48%,#00c8ec 100%);
  border-color:transparent;
  box-shadow:0 8px 26px rgba(52,227,255,.2);
  font-weight:700;
}
.btn-primary:hover,.btn-primary:focus{
  background:linear-gradient(135deg,#b0f7ff 0%,#3ce8ff 50%,#16d9ff 100%);
  color:#06131d;
  border-color:transparent;
  box-shadow:0 0 32px var(--primary-glow),0 8px 20px rgba(52,227,255,.2);
  transform:translateY(-2px);
}
.btn-outline-light{
  --bs-btn-color:var(--text-1);
  --bs-btn-border-color:rgba(148,205,255,.3);
  --bs-btn-hover-color:#fff;
  --bs-btn-hover-border-color:var(--primary);
  --bs-btn-hover-bg:rgba(52,227,255,.08);
  color:var(--text-1);
  border:1px solid rgba(148,205,255,.28);
  background:rgba(148,205,255,.04);
}
.btn-outline-light:hover{
  color:#fff;
  background:rgba(52,227,255,.10);
  border-color:var(--primary);
  box-shadow:0 0 18px rgba(52,227,255,.14);
}
.btn-plain{
  color:var(--text-2);
  background:transparent;
  border:1px solid transparent;
}
.btn-plain:hover{color:var(--primary);background:rgba(52,227,255,.05)}

/* Footer */
.site-footer{
  position:relative;
  z-index:2;
  background:rgba(4,9,16,.9);
  border-top:1px solid rgba(148,205,255,.1);
  padding-top:70px;
  backdrop-filter:blur(8px);
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(52,227,255,.5),rgba(138,123,255,.4),transparent);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr;
  gap:50px;
  padding-bottom:44px;
}
.footer-brand .brand{
  margin-bottom:18px;
}
.footer-desc{
  color:var(--text-3);
  font-size:14px;
  line-height:1.9;
  max-width:390px;
  margin:14px 0 0;
}
.footer-nav-title{
  color:var(--text-1);
  font-size:16px;
  font-weight:600;
  margin-bottom:14px;
  letter-spacing:.3px;
}
.footer-links{
  list-style:none;
  padding:0;
  margin:0;
  display:grid;
  gap:5px;
}
.footer-links a{
  color:var(--text-2);
  font-size:14.5px;
  padding:5px 0;
  display:inline-flex;
  align-items:center;
  gap:6px;
  transition:var(--transition);
}
.footer-links a i{font-size:11px;color:var(--text-3)}
.footer-links a:hover{color:var(--primary)}
.footer-links a:hover i{color:var(--primary);transform:translateX(2px)}
.footer-bottom{
  border-top:1px solid rgba(148,205,255,.09);
  padding:22px 0 26px;
  color:var(--text-3);
  font-size:13px;
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:8px 20px;
}
.footer-bottom a{color:var(--text-3)}
.footer-bottom a:hover{color:var(--primary)}

/* Floating to top */
.to-top{
  position:fixed;
  right:26px;
  bottom:30px;
  width:48px;height:48px;
  border-radius:50%;
  background:rgba(16,35,56,.86);
  border:1px solid rgba(52,227,255,.3);
  color:var(--primary);
  font-size:18px;
  display:grid;place-items:center;
  box-shadow:0 8px 24px rgba(0,0,0,.3);
  z-index:600;
  opacity:0;
  visibility:hidden;
  transform:translateY(14px);
  transition:var(--transition);
  backdrop-filter:blur(10px);
}
.to-top.show{
  opacity:1;visibility:visible;transform:translateY(0);
}
.to-top:hover{
  background:rgba(52,227,255,.19);
  color:#fff;
  box-shadow:0 0 22px rgba(52,227,255,.25);
}

/* WP alignment utilities */
.text-center{text-align:center}
.mx-auto{margin-left:auto;margin-right:auto}

/* ===== Responsive ===== */
@media (max-width:1100px){
  .article-layout{grid-template-columns:1fr;gap:38px}
  .article-side-col{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:24px;
  }
  .side-sticky{position:static}
}
@media (max-width:991.98px){
  .nav-toggle{display:inline-flex}
  .header-inner{flex-wrap:nowrap}
  .nav-panel{
    opacity:0;
    visibility:hidden;
    transform:translateY(-12px);
    position:fixed;
    top:86px;
    left:14px;right:14px;
    z-index:1090;
    padding:20px;
    flex-direction:column;
    align-items:flex-start;
    background:rgba(8,17,28,.97);
    backdrop-filter:blur(24px);
    border:1px solid rgba(148,205,255,.18);
    border-radius:20px;
    box-shadow:0 26px 60px rgba(0,0,0,.45),0 0 35px rgba(52,227,255,.05);
    transition:all .28s ease;
  }
  .nav-panel.open{
    opacity:1;
    visibility:visible;
    transform:translateY(0);
  }
  .main-nav{
    width:100%;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
  }
  .nav-link{
    padding:12px 14px;
    border-radius:14px;
    font-size:16px;
    justify-content:flex-start;
  }
  .nav-link.active::after{display:none}
  .header-access{
    width:100%;
    justify-content:center;
    margin-top:10px;
    padding:12px;
  }
}
@media (max-width:767.98px){
  .article-banner{
    padding-top:36px;
    padding-bottom:30px;
    margin-top:70px;
  }
  .related-section{padding:46px 0 56px}
  .reco-grid{grid-template-columns:1fr 1fr}
  .article-nav-cards{grid-template-columns:1fr}
  .article-card{padding:30px 20px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .faq-layout{grid-template-columns:1fr}
}
@media (max-width:575.98px){
  .container{padding-left:16px;padding-right:16px}
  .brand-name{font-size:18px}
  .brand-symbol{width:36px;height:36px;font-size:15px}
  .header-inner{min-height:68px}
  .nav-panel{top:76px}
  .article-banner{margin-top:68px;padding:30px 0 26px}
  .article-title-wrap h1{font-size:1.42rem}
  .article-meta-line{gap:10px 16px;font-size:13px}
  .reco-grid{grid-template-columns:1fr}
  .faq-zone{padding:56px 0 28px}
  .article-layout{padding-top:34px;padding-bottom:52px}
  .article-cta{padding:26px 20px;flex-direction:column;align-items:flex-start}
  .article-cta .cta-actions{width:100%}
  .article-cta .cta-actions .btn{flex:1;text-align:center;justify-content:center}
  .article-side-col{
    grid-template-columns:1fr;
    gap:18px;
  }
  .side-card{padding:19px}
  .footer-bottom{flex-direction:column;text-align:center;justify-content:center}
  .to-top{right:15px;bottom:22px;width:42px;height:42px}
}

/* roulang page: category1 */
:root{
  --bg-0:#070D15;
  --bg-1:#0C1826;
  --bg-2:#102338;
  --glass-bg:rgba(145,190,230,.055);
  --glass-border:rgba(148,205,255,.14);
  --glass-hover:rgba(148,205,255,.10);
  --primary:#34E3FF;
  --primary-glow:rgba(52,227,255,.35);
  --secondary:#8A7BFF;
  --online:#69F0AE;
  --warning:#FFC36B;
  --hot:#FF7A6B;
  --text-1:#EAF3FF;
  --text-2:#A0B8D0;
  --text-3:#65809B;
  --radius-sm:10px;
  --radius-md:18px;
  --radius-lg:20px;
  --radius-pill:999px;
  --card-shadow:0 16px 40px rgba(0,0,0,.25);
  --section-space:clamp(3.5rem,7vw,6.2rem);
}
*{box-sizing:border-box;outline:none}
html{scroll-behavior:smooth}
body{
  margin:0;
  min-height:100vh;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text-2);
  background:
    radial-gradient(1000px 600px at 80% -10%, rgba(52,227,255,.10), transparent 60%),
    radial-gradient(900px 500px at 10% 110%, rgba(138,123,255,.08), transparent 60%),
    linear-gradient(180deg,var(--bg-0),var(--bg-1) 40%,var(--bg-0));
  background-repeat:no-repeat;
  background-attachment:fixed;
}
a{text-decoration:none;color:inherit;transition:color .2s ease,border-color .2s ease,background .2s ease,box-shadow .2s ease,transform .2s ease}
img{max-width:100%;display:block}
button,input,select,textarea{font-family:inherit;font-size:inherit}
.container{max-width:1240px;padding-left:24px;padding-right:24px}

/* header nav */
.site-header{
  position:sticky;top:0;z-index:1050;
  background:rgba(7,13,21,.72);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  border-bottom:1px solid rgba(148,205,255,.12);
  box-shadow:0 8px 30px rgba(0,0,0,.15);
}
.header-inner{
  display:flex;align-items:center;
  min-height:72px;
  gap:32px;
}
.brand{
  display:inline-flex;align-items:center;
  gap:10px;font-weight:800;color:var(--text-1);
  letter-spacing:.01em;
}
.brand-symbol{
  width:42px;height:42px;border-radius:15px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  color:#04121C;font-weight:900;font-size:1.25rem;
  box-shadow:0 0 0 1px rgba(52,227,255,.35),0 10px 22px rgba(52,227,255,.22);
}
.brand-name{font-size:1.22rem;line-height:1.2}
.brand-name small{display:block;font-size:.62rem;font-weight:500;color:var(--text-3);letter-spacing:.34em}
.main-nav{
  display:flex;align-items:center;
  gap:4px;margin-left:auto;
}
.nav-link{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 18px;border-radius:var(--radius-pill);
  color:var(--text-2);font-size:.92rem;font-weight:500;
  border:1px solid transparent;
  transition:.22s ease;
}
.nav-link i{width:18px;color:var(--text-3);transition:color .2s}
.nav-link:hover{color:var(--text-1);background:rgba(255,255,255,.04);border-color:rgba(148,205,255,.10)}
.nav-link.active{
  background:var(--glass-bg);color:#fff;
  border-color:rgba(52,227,255,.24);
  box-shadow:0 0 20px rgba(52,227,255,.10);
}
.nav-link.active i{color:var(--primary)}
.header-cta{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:44px;padding:0 18px;border-radius:var(--radius-pill);
  background:linear-gradient(135deg,rgba(52,227,255,.22),rgba(138,123,255,.24));
  border:1px solid rgba(52,227,255,.35);
  color:#fff;font-size:.9rem;font-weight:600;
  box-shadow:0 0 24px rgba(52,227,255,.15);
}
.header-cta:hover{
  transform:translateY(-2px);
  box-shadow:0 0 32px var(--primary-glow);
}
.nav-toggle{
  display:none;
  background:var(--glass-bg);color:var(--text-1);
  border:1px solid var(--glass-border);
  width:44px;height:44px;border-radius:14px;font-size:1.1rem;
  align-items:center;justify-content:center;
}
.nav-toggle:hover{background:var(--glass-hover)}

/* buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--radius-pill);
  border:1px solid transparent;font-weight:600;
  line-height:1.2;cursor:pointer;transition:.25s ease;
}
.btn-primary-lp{
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  color:#04121C;
  box-shadow:0 0 24px rgba(52,227,255,.26);
}
.btn-primary-lp:hover{
  transform:translateY(-2px);
  box-shadow:0 0 32px var(--primary-glow);
  color:#04121C;
}
.btn-glass{
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  color:var(--text-1);
}
.btn-glass:hover{background:var(--glass-hover);border-color:rgba(52,227,255,.3);color:#fff;transform:translateY(-2px)}
.btn-sm{min-height:40px;padding:0 16px;font-size:.87rem}
.btn:active{transform:scale(.97)}

/* hero section for category */
.category-hero{
  position:relative;
  padding:calc(var(--section-space) + 20px) 0 calc(var(--section-space)*.9);
  isolation:isolate;
  overflow:hidden;
}
.category-hero:before{
  content:"";
  position:absolute;inset:0;z-index:-2;
  background:
    radial-gradient(1000px 540px at 82% 18%,rgba(52,227,255,.20),transparent 65%),
    radial-gradient(720px 500px at 4% 20%,rgba(138,123,255,.22),transparent 60%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  opacity:.34;
}
.category-hero:after{
  content:"";
  position:absolute;inset:0;z-index:-1;
  background:
    linear-gradient(180deg,rgba(7,13,21,.75) 0%,rgba(7,13,21,.55) 42%,rgba(7,13,21,.88) 78%,var(--bg-0) 100%);
}
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:.85rem;color:var(--text-3);margin-bottom:20px;
}
.crumbs a{color:var(--text-2)}
.crumbs a:hover{color:var(--primary)}
.crumbs i{font-size:.6rem;color:var(--text-3)}
.cat-hero-row{
  display:flex;justify-content:space-between;gap:40px;
  align-items:center;
}
.cat-hero-copy{flex:1 1 640px}
.hero-kicker{
  font-size:.96rem;color:var(--primary);
  display:flex;align-items:center;gap:10px;margin-bottom:18px;
  font-weight:600;
}
.hero-kicker span{
  width:9px;height:9px;border-radius:50%;background:var(--online);
  box-shadow:0 0 16px var(--online);
}
.category-hero h1{
  font-size:clamp(2.1rem,4vw,3rem);
  font-weight:800;
  color:#fff;
  line-height:1.25;
  margin:0 0 18px;
  letter-spacing:.01em;
}
.category-hero h1 em{
  font-style:normal;
  background:linear-gradient(90deg,var(--primary),var(--secondary));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.category-hero p.lead-copy{
  max-width:720px;
  font-size:1rem;
  color:var(--text-2);
  margin:0 0 8px;
}
.hero-note{
  color:var(--text-3);
  font-size:.9rem;
  margin-top:14px;
  display:flex;align-items:center;gap:10px;
}
.hero-note i{color:var(--online)}
.cat-hero-actions{
  display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;
}
.cat-stats{
  flex:0 0 auto;
  width:240px;
  display:flex;flex-direction:column;gap:18px;
}
.stat-pill{
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  border-radius:var(--radius-md);
  padding:18px 16px;
  display:flex;gap:14px;align-items:center;
  backdrop-filter:blur(10px);
  transition:.25s ease;
}
.stat-pill:hover{background:var(--glass-hover);border-color:rgba(52,227,255,.34);transform:translateY(-3px)}
.stat-icon{
  width:48px;height:48px;border-radius:16px;
  background:rgba(52,227,255,.12);
  border:1px solid rgba(52,227,255,.26);
  display:flex;align-items:center;justify-content:center;
  color:var(--primary);font-size:1.25rem;
  flex:0 0 48px;
}
.stat-txt b{display:block;font-size:.98rem;color:var(--text-1);font-weight:700}
.stat-txt span{font-size:.78rem;color:var(--text-3)}

/* section */
.section{
  padding:var(--section-space) 0;
  border-bottom:1px solid rgba(148,205,255,.08);
}
.section:last-of-type{border-bottom:0}
.section-head{
  display:flex;align-items:flex-end;
  justify-content:space-between;gap:20px;
  margin-bottom:30px;
}
.section-head h2{
  font-size:clamp(1.4rem,2.4vw,1.9rem);
  font-weight:800;color:#eef7ff;
  margin:0;letter-spacing:.01em;
}
.section-head p{margin:6px 0 0;color:var(--text-3);font-size:.92rem;max-width:560px}
.link-more{
  white-space:nowrap;
  font-size:.9rem;color:var(--primary);
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:var(--radius-pill);
  background:rgba(52,227,255,.06);
  border:1px solid rgba(52,227,255,.18);
}
.link-more:hover{background:rgba(52,227,255,.14);color:#fff;transform:translateY(-2px)}

/* tag chips */
.chip-filter{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-bottom:26px;
}
.chip-filter .chip{
  font-size:.88rem;
  border-radius:var(--radius-pill);
  padding:7px 14px;
  color:var(--text-2);
  background:rgba(255,255,255,.04);
  border:1px solid var(--glass-border);
}
.chip-filter .chip.current{
  color:#fff;
  background:linear-gradient(90deg,rgba(52,227,255,.2),rgba(138,123,255,.22));
  border-color:rgba(52,227,255,.34);
}
.chip i{margin-right:7px;color:var(--text-3)}
.chip.current i{color:var(--primary)}

/* horizontal 9:16 cards */
.hot-rail{
  display:grid;
  grid-auto-flow:column;
  grid-auto-columns:minmax(220px,250px);
  gap:20px;
  overflow-x:auto;
  scroll-snap-type:x mandatory;
  padding:4px 2px 24px;
  scrollbar-width:thin;
  scrollbar-color:rgba(52,227,255,.4) transparent;
}
.hot-card{
  scroll-snap-align:start;
  position:relative;
  aspect-ratio:9/16;
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--glass-border);
  background:var(--bg-2);
  display:flex;flex-direction:column;
  transition:.25s ease;
}
.hot-card:hover{transform:translateY(-6px);border-color:rgba(52,227,255,.42);box-shadow:var(--card-shadow)}
.hot-card-image{
  position:absolute;inset:0;z-index:0;
}
.hot-card-image img{width:100%;height:100%;object-fit:cover}
.hot-card:after{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(180deg,rgba(7,13,21,.05) 0%,rgba(7,13,21,.24) 45%,rgba(7,13,21,.92) 100%);
}
.hot-badge{
  position:absolute;top:14px;left:14px;z-index:2;
  padding:4px 12px;
  font-size:.78rem;font-weight:700;
  border-radius:30px;
  color:#fff;
  background:rgba(7,13,21,.52);
  border:1px solid rgba(148,205,255,.22);
  backdrop-filter:blur(8px);
  display:flex;align-items:center;gap:6px;
}
.hot-badge i{font-size:.65rem;color:var(--online)}
.hot-badge.red i{color:var(--hot)}
.hot-card-content{
  margin-top:auto;position:relative;z-index:2;padding:20px 18px 18px;
}
.hot-card-content h3{
  color:#fff;font-size:1.05rem;line-height:1.4;
  font-weight:700;margin:10px 0 8px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.hot-card-content p{
  font-size:.78rem;color:rgba(234,243,255,.72);
  margin:0 0 14px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.hot-card-btn{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.85rem;color:var(--primary);
}
.hot-card-btn i{
  width:30px;height:30px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(52,227,255,.15);
  border:1px solid rgba(52,227,255,.3);
}
.hot-value{
  position:absolute;top:14px;right:14px;z-index:2;
  font-size:.75rem;color:rgba(234,243,255,.9);
  padding:5px 10px;border-radius:30px;
  background:rgba(7,13,21,.45);
  border:1px solid rgba(255,255,255,.1);
  backdrop-filter:blur(6px);
}
.hot-value i{color:var(--warning);margin-right:4px}

/* featured split */
.featured-wrap{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:24px;
}
.feat-main{
  border-radius:var(--radius-lg);
  overflow:hidden;
  background:var(--bg-2);
  border:1px solid var(--glass-border);
  min-height:380px;
  display:flex;
  flex-direction:column;
}
.feat-media{position:relative;flex:1 1 auto;min-height:230px;overflow:hidden}
.feat-media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.feat-media:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(7,13,21,.82) 100%)}
.feat-label{
  position:absolute;left:18px;top:16px;z-index:1;
  background:rgba(52,227,255,.18);
  border:1px solid rgba(52,227,255,.3);
  border-radius:30px;
  color:var(--primary);
  font-size:.8rem;
  padding:5px 13px;
  backdrop-filter:blur(6px);
}
.feat-main h3{
  position:absolute;left:20px;right:20px;bottom:18px;z-index:1;
  color:#fff;font-size:1.3rem;line-height:1.4;font-weight:700;margin:0;
}
.feat-summary{
  padding:18px 20px 20px;
  color:var(--text-2);font-size:.9rem;
  border-top:1px solid rgba(148,205,255,.1);
}
.feat-summary .meta-line{display:flex;justify-content:space-between;font-size:.78rem;color:var(--text-3);margin-top:6px}
.feat-side{
  display:flex;flex-direction:column;gap:12px;
}
.feat-mini{
  flex:1;
  display:flex;gap:14px;
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  border-radius:var(--radius-md);
  padding:14px;
  align-items:center;
  transition:.22s ease;
}
.feat-mini:hover{background:var(--glass-hover);border-color:rgba(52,227,255,.32);transform:translateY(-2px)}
.feat-mini i.mini-ic{
  flex:0 0 44px;width:44px;height:44px;
  border-radius:14px;display:flex;align-items:center;justify-content:center;
  color:var(--primary);background:rgba(52,227,255,.1);
  border:1px solid rgba(52,227,255,.18);
}
.feat-mini b{display:block;color:var(--text-1);font-size:.94rem;font-weight:700;line-height:1.4}
.feat-mini span{font-size:.82rem;color:var(--text-3)}

/* legend steps/guide visual */
.steps-row{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.step-item{
  position:relative;
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  border-radius:var(--radius-lg);
  padding:26px 22px 22px;
  min-height:225px;
}
.step-item:hover{
  background:var(--glass-hover);
  border-color:rgba(52,227,255,.32);
  transform:translateY(-4px);
  box-shadow:var(--card-shadow);
}
.step-num{
  position:absolute;top:20px;right:22px;
  font-size:2.4rem;font-weight:900;
  color:rgba(148,205,255,.1);
  line-height:1;
}
.step-item i.lead-ic{
  width:52px;height:52px;border-radius:18px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(52,227,255,.16),rgba(138,123,255,.14));
  border:1px solid rgba(52,227,255,.28);
  color:var(--primary);
  font-size:1.4rem;
  margin-bottom:16px;
}
.step-item h3{color:var(--text-1);font-size:1.05rem;font-weight:700;margin-bottom:8px}
.step-item p{color:var(--text-3);font-size:.88rem;margin:0}

/* timeline */
.timeline-list{
 position:relative;
 padding-left:4px;
}
.timeline-item{
  display:flex;
  align-items:stretch;
  gap:22px;
  padding:0 0 22px;
}
.timeline-rail{
  width:54px;
  display:flex;
  justify-content:flex-start;
  padding-top:0;
}
.timeline-rail:before{
  content:"";
  width:1px;
  background:linear-gradient(180deg,rgba(52,227,255,.5),rgba(138,123,255,.2),rgba(148,205,255,.1));
  margin-left:16px;
}
.timeline-item:last-child .timeline-rail:before{background:transparent}
.rail-dot{
  position:absolute;
  width:12px;height:12px;
  border-radius:50%;
  background:var(--primary);
  border:3px solid var(--bg-0);
  box-shadow:0 0 14px var(--primary-glow);
  transform:translateX(10px);
}
.timeline-body{
  flex:1;
  min-width:0;
  display:flex;
  gap:20px;
}
.timeline-card{
  flex:1;
  display:flex;
  gap:20px;
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  border-radius:var(--radius-md);
  padding:16px;
  transition:.25s ease;
}
.timeline-card:hover{
  background:var(--glass-hover);
  border-color:rgba(52,227,255,.4);
  transform:translateY(-4px);
  box-shadow:var(--card-shadow);
}
.timeline-thumb{
  flex:0 0 220px;
  width:220px;height:130px;
  border-radius:14px;
  overflow:hidden;
  position:relative;
}
.timeline-thumb img{width:100%;height:100%;object-fit:cover}
.timeline-thumb .dur{
  position:absolute;right:8px;bottom:8px;
  background:rgba(7,13,21,.65);
  color:#fff;
  font-size:.72rem;
  border-radius:8px;
  padding:2px 8px;
  backdrop-filter:blur(4px);
}
.timeline-info{flex:1;min-width:0;padding-top:2px}
.timeline-tags{
  display:flex;gap:8px;flex-wrap:wrap;margin-bottom:8px;
}
.ymtag{
  font-size:.75rem;
  border-radius:30px;
  padding:3px 10px;
  background:rgba(138,123,255,.15);
  color:#cfc9ff;
  display:inline-flex;align-items:center;gap:5px;
}
.ymtag.online{background:rgba(105,240,174,.12);color:var(--online)}
.timeline-info h3{font-size:1.08rem;color:#fff;font-weight:700;margin:0 0 8px;line-height:1.45}
.timeline-info p{font-size:.88rem;color:var(--text-3);margin:0 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.meta-muted{font-size:.78rem;color:var(--text-3);display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.meta-muted i{margin-right:4px;color:var(--text-3)}
.meta-muted .more{
  margin-left:auto;
  color:var(--primary);
  font-size:.83rem;
  white-space:nowrap;
}

/* live feed / cms */
.feed-stack{
  display:grid;
  grid-template-columns:1.4fr 1fr;
  gap:22px;
}
.feed-primary-card{
  background:rgba(15,28,45,.6);
  border:1px solid var(--glass-border);
  border-radius:var(--radius-lg);
  overflow:hidden;
  display:block;
  position:relative;
  min-height:360px;
}
.feed-primary-card:hover{border-color:rgba(52,227,255,.36);transform:translateY(-4px);box-shadow:var(--card-shadow)}
.feed-cover{
  height:260px;
  overflow:hidden;
  display:block;
  position:relative;
}
.feed-cover img{width:100%;height:100%;object-fit:cover}
.feed-cover:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,13,21,.1),rgba(7,13,21,.65));}
.feed-tag{
  position:absolute;top:16px;left:16px;z-index:1;
  padding:4px 11px;
  border-radius:30px;
  background:rgba(52,227,255,.14);
  border:1px solid rgba(52,227,255,.23);
  color:var(--primary);font-size:.78rem;
}
.feed-body{padding:18px 20px}
.feed-body h3{color:var(--text-1);font-size:1.15rem;font-weight:700;margin:0 0 10px}
.feed-body p{color:var(--text-3);font-size:.88rem;margin:0 0 12px}
.feed-meta{display:flex;gap:12px;font-size:.8rem;color:var(--text-3)}
.feed-list{display:flex;flex-direction:column;gap:12px}
.feed-row{
 display:flex;gap:14px;align-items:center;
 background:var(--glass-bg);
 border:1px solid var(--glass-border);
 padding:14px;
 border-radius:var(--radius-md);
 transition:.2s ease;
}
.feed-row:hover{background:var(--glass-hover);border-color:rgba(52,227,255,.3);transform:translateX(-4px)}
.feed-row .timebox{
 flex:0 0 58px;width:58px;height:58px;
 border-radius:14px;
 background:linear-gradient(35deg,rgba(52,227,255,.12),rgba(138,123,255,.13));
 display:flex;align-items:center;justify-content:center;
 flex-direction:column;
 color:var(--primary);
 border:1px solid rgba(52,227,255,.22);
}
.timebox b{font-size:1.25rem;line-height:1}
.timebox span{font-size:.6rem;color:var(--text-2)}
.feed-row h3{color:var(--text-1);font-size:.94rem;font-weight:600;margin:0 0 4px;letter-spacing:.01em}
.feed-row p{color:var(--text-3);font-size:.8rem;margin:0}
.feed-row .plus{
  margin-left:auto;color:var(--primary);font-size:1rem;
  display:flex;align-items:center;
}
.cat-feed-empty{
  grid-column:1/-1;
  border:1px dashed rgba(148,205,255,.2);
  border-radius:var(--radius-lg);
  padding:34px 20px;
  color:var(--text-3);
  background:rgba(7,13,21,.3);
  display:flex;align-items:center;justify-content:center;gap:10px;
  text-align:center;
}
.cat-feed-empty i{color:var(--primary);font-size:1.1rem}

/* callout visual split */
.mid-banner{
  border-radius:var(--radius-lg);
  overflow:hidden;
  position:relative;
  padding:50px 44px;
  border:1px solid var(--glass-border);
  background:
    radial-gradient(700px 300px at 20% 0,rgba(255,195,107,.12),transparent 60%),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
}
.mid-banner:after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(7,13,21,.93) 16%,rgba(12,24,38,.84) 52%,rgba(7,13,21,.65) 100%);
}
.mid-inner{position:relative;z-index:1}
.mid-inner h2{color:#fff;font-weight:800;font-size:1.9rem;margin:0 0 12px}
.mid-inner p{color:var(--text-2);max-width:670px;margin:0 0 28px;font-size:.95rem}
.mid-ctas{display:flex;flex-wrap:wrap;gap:14px}
.mid-list{
 list-style:none;padding:0;margin:34px 0 0;
 display:flex;flex-wrap:wrap;gap:12px;
}
.mid-list li{
 border:1px solid rgba(148,205,255,.16);
 background:rgba(7,13,21,.45);
 color:var(--text-1);
 border-radius:50px;
 font-size:.88rem;
 padding:6px 15px;
 display:flex;gap:7px;align-items:center;
}
.mid-list li i{color:var(--online)}

/* faq */
.accordion.cat-accordion{
  --bs-accordion-bg:rgba(145,190,230,.07);
  --bs-accordion-border-color:rgba(148,205,255,.14);
  --bs-accordion-btn-bg:rgba(7,13,21,.3);
  --bs-accordion-active-bg:rgba(145,190,230,.1);
  --bs-accordion-btn-color:#dbeafe;
  --bs-accordion-active-color:#fff;
  --bs-accordion-btn-focus-box-shadow:0 0 0 0 transparent;
  border-radius:var(--radius-md);
}
.accordion.cat-accordion .accordion-item{
  background:transparent;
  border:1px solid rgba(148,205,255,.14);
  margin-bottom:14px;
  border-radius:var(--radius-md)!important;
  overflow:hidden;
}
.cat-accordion .accordion-button{
  font-weight:700;
  padding:17px 22px;
  color:var(--text-1);
  font-size:1rem;
  background:rgba(145,190,230,.07);
}
.cat-accordion .accordion-button:not(.collapsed)::after{
  content:"\2212";
  transform:none;
  font-weight:800;
}
.cat-accordion .accordion-button::after{
  content:"\002B";
  background:none;
  color:var(--primary);
  font-size:1.4rem;
  font-weight:400;
  width:24px;height:30px;
  font-family:"PingFang SC","Microsoft YaHei",sans-serif;
}
.cat-accordion .accordion-body{
  padding:18px 22px;
  color:var(--text-2);
  font-size:.92rem;
  background:var(--glass-bg);
  border-top:1px solid rgba(148,205,255,.1);
}

/* cta lower */
.cta-band{
  text-align:center;
  padding:38px;
  background:
    radial-gradient(600px 220px at 50% -30%,rgba(52,227,255,.25),transparent 60%),
    radial-gradient(500px 160px at 45% 160%,rgba(138,123,255,.22),transparent 65%),
    var(--bg-2);
  border:1px solid var(--glass-border);
  border-radius:var(--radius-lg);
  margin-bottom:calc(var(--section-space) * .4);
}
.cta-band h2{color:#fff;font-weight:800;font-size:clamp(1.4rem,3vw,2rem);margin:0 0 12px}
.cta-band p{max-width:640px;color:var(--text-2);margin:0 auto 26px;font-size:.98rem}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* footer */
.site-footer{
  background:#050A10;
  border-top:1px solid rgba(148,205,255,.14);
  padding:70px 0 28px;
  margin-top:60px;
}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr;
  gap:36px;
  margin-bottom:42px;
}
.footer-brand .brand{margin-bottom:18px}
.footer-desc{
  font-size:.92rem;
  color:var(--text-3);
  max-width:390px;
  margin:16px 0 0;
}
.footer-nav-title{
  color:#fff;
  font-weight:700;
  margin-bottom:14px;
  font-size:1rem;
}
.footer-links{list-style:none;margin:0;padding:0}
.footer-links li{margin-bottom:10px}
.footer-links a{color:var(--text-2);font-size:.9rem;display:inline-flex;align-items:center;gap:8px}
.footer-links a i{font-size:.74rem;color:var(--text-3);transition:.2s}
.footer-links a:hover{color:var(--primary)}
.footer-links a:hover i{color:var(--primary);transform:translateX(3px)}
.footer-bottom{
  border-top:1px solid rgba(148,205,255,.1);
  padding-top:24px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;
  color:var(--text-3);font-size:.84rem;
}

/* responsive */
@media (max-width:991.98px){
  .main-nav{
    position:absolute;
    top:calc(100% - 6px);
    left:15px;right:15px;
    background:rgba(12,24,38,.96);
    border:1px solid var(--glass-border);
    border-radius:20px;
    backdrop-filter:blur(22px);
    box-shadow:0 18px 46px rgba(0,0,0,.25);
    padding:10px;
    flex-direction:column;
    align-items:stretch;
    display:none;
    z-index:100;
  }
  .main-nav.is-open{display:flex}
  .nav-link{justify-content:flex-start;padding:12px 16px}
  .nav-toggle{display:inline-flex}
  .header-cta{display:none}
  .cat-hero-row{flex-direction:column}
  .cat-stats{width:100%;flex-direction:row}
  .stat-pill{flex:1}
  .featured-wrap,.feed-stack,.timeline-body{grid-template-columns:1fr;flex-direction:column}
  .timeline-body{display:flex}
  .timeline-card{flex-direction:row}
  .steps-row{grid-template-columns:1fr 1fr}
}
@media (max-width:767.98px){
  .cat-stats{flex-direction:column}
  .steps-row{grid-template-columns:1fr}
  .section-head{flex-direction:column;align-items:flex-start}
  .timeline-rail{width:30px}
  .rail-dot{transform:translateX(0)}
  .timeline-card{flex-direction:column;gap:12px}
  .timeline-thumb{width:100%;flex:0 0 90px}
  .timeline-thumb img{position:static}
  .meta-muted .more{margin-left:0;margin-top:6px}
  .mid-banner{padding:30px 22px}
  .footer-grid{grid-template-columns:1fr}
  .cta-actions{flex-direction:column}
  .cta-actions .btn{width:100%}
}
@media (max-width:520px){
  .container{padding-left:16px;padding-right:16px}
  .brand-name{font-size:1.1rem}
  .brand-symbol{width:36px;height:36px;font-size:1rem}
  .category-hero h1{font-size:1.8rem}
  .hot-rail{grid-auto-columns:minmax(180px,65vw)}
  .feat-main h3{font-size:1.12rem}
  .feed-row .timebox{flex:0 0 50px;width:50px;height:50px}
  .timebox b{font-size:1.1rem}
}

/* roulang page: category2 */
:root{
    --bg-0:#070D15;
    --bg-1:#0C1826;
    --bg-2:#102338;
    --glass-bg:rgba(145,190,230,0.055);
    --glass-border:rgba(148,205,255,0.14);
    --glass-hover:rgba(148,205,255,0.10);
    --primary:#34E3FF;
    --primary-glow:rgba(52,227,255,0.35);
    --secondary:#8A7BFF;
    --online:#69F0AE;
    --warning:#FFC36B;
    --hot:#FF7A6B;
    --text-1:#EAF3FF;
    --text-2:#A0B8D0;
    --text-3:#65809B;
    --radius-sm:10px;
    --radius-md:18px;
    --radius-lg:22px;
    --radius-pill:999px;
    --card-shadow:0 16px 40px rgba(0,0,0,0.25);
    --container-w:1240px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
    margin:0;
    font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
    background:
        radial-gradient(circle at 12% 18%, rgba(52,227,255,0.08), transparent 26rem),
        radial-gradient(circle at 82% 32%, rgba(138,123,255,0.07), transparent 30rem),
        var(--bg-0);
    color:var(--text-1);
    line-height:1.78;
    -webkit-font-smoothing:antialiased;
}
body::before{
    content:"";
    position:fixed;
    inset:0;
    z-index:0;
    pointer-events:none;
    background-image:radial-gradient(rgba(148,205,255,0.2) 1px, transparent 1px);
    background-size:28px 28px;
    mask-image:linear-gradient(to bottom, rgba(0,0,0,0.7), transparent 82%);
    opacity:0.28;
}
a{color:inherit;text-decoration:none}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}
img{max-width:100%;display:block}
.container{max-width:var(--container-w);margin:0 auto;padding-left:24px;padding-right:24px;position:relative;z-index:1}
main{position:relative;z-index:1}

/* ---------- header ---------- */
.site-header{
    position:sticky;
    top:0;
    z-index:100;
    background:rgba(7,13,21,0.74);
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
    border-bottom:1px solid rgba(148,205,255,0.12);
    box-shadow:0 10px 30px rgba(0,0,0,0.18);
}
.header-inner{
    display:flex;
    align-items:center;
    flex-wrap:wrap;
    min-height:76px;
    gap:20px;
}
.brand{
    display:inline-flex;
    align-items:center;
    gap:11px;
    flex-shrink:0;
}
.brand-symbol{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    width:38px;
    height:38px;
    border-radius:50%;
    font-weight:700;
    font-size:19px;
    color:#08121F;
    background:radial-gradient(circle at 30% 30%, #B7F7FF, #34E3FF 68%, #0C9CC2);
    box-shadow:0 0 20px rgba(52,227,255,0.45);
}
.brand-name{
    font-size:20px;
    font-weight:800;
    letter-spacing:0.5px;
    color:#F4FBFF;
}
.brand-name::first-letter{color:var(--primary)}
.main-nav{
    margin-left:auto;
    display:flex;
    align-items:center;
    gap:4px;
    overflow-x:auto;
    scrollbar-width:none;
    padding:8px 0;
}
.main-nav::-webkit-scrollbar{display:none}
.main-nav a.nav-link{
    color:var(--text-2);
    font-size:15px;
    line-height:1.35;
    font-weight:500;
    padding:10px 18px;
    border-radius:var(--radius-pill);
    transition:color .2s ease, background .2s ease, box-shadow .2s ease;
    white-space:nowrap;
    display:inline-flex;
    align-items:center;
    gap:8px;
    border:1px solid transparent;
}
.main-nav a.nav-link:hover{
    color:var(--text-1);
    background:rgba(148,205,255,0.08);
}
.main-nav a.nav-link.active{
    color:#F5FCFF;
    background:rgba(52,227,255,0.12);
    border-color:rgba(52,227,255,0.24);
    box-shadow:inset 0 0 16px rgba(52,227,255,0.08), 0 0 8px rgba(52,227,255,0.08);
    position:relative;
}
.main-nav a.nav-link.active::after{
    content:"";
    position:absolute;
    left:22px;
    right:22px;
    bottom:1px;
    height:2px;
    border-radius:4px;
    background:linear-gradient(90deg, var(--primary), transparent);
}

/* ---------- buttons ---------- */
.btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    border-radius:var(--radius-pill);
    padding:12px 24px;
    border:1px solid transparent;
    font-size:15px;
    font-weight:600;
    line-height:1.25;
    transition:transform .25s ease, box-shadow .25s ease, background .25s ease, border-color .25s ease, opacity .25s ease;
    cursor:pointer;
}
.btn-primary{
    background:linear-gradient(135deg,#8FF0FF,var(--primary) 60%,#14B8D8);
    color:#06121C;
    box-shadow:0 4px 18px rgba(52,227,255,0.28), 0 0 18px rgba(52,227,255,0.10);
}
.btn-primary:hover{
    color:#04101B;
    transform:translateY(-2px);
    box-shadow:0 8px 28px rgba(52,227,255,0.42), 0 0 30px var(--primary-glow);
}
.btn-primary:active{
    transform:scale(0.97);
}
.btn-glass{
    background:rgba(145,190,230,0.08);
    border:1px solid var(--glass-border);
    color:var(--text-1);
    backdrop-filter:blur(10px);
}
.btn-glass:hover{
    background:rgba(148,205,255,0.12);
    border-color:rgba(148,205,255,0.42);
    color:#fff;
    transform:translateY(-2px);
    box-shadow:0 0 22px rgba(148,205,255,0.16);
}
.btn-ghost{
    background:transparent;
    border:1px solid rgba(234,243,255,0.22);
    color:var(--text-1);
}
.btn-ghost:hover{
    border-color:var(--primary);
    color:var(--primary);
    background:rgba(52,227,255,0.06);
}
.btn-coral{
    background:linear-gradient(135deg,#FFC36B,#FF9E6B);
    color:#141013;
}
.btn-sm{
    padding:8px 15px;
    font-size:14px;
}

/* ---------- page sections ---------- */
.page-section{
    padding-top:clamp(4rem,8vw,7rem);
    padding-bottom:clamp(4rem,8vw,7rem);
}
.section-kicker{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:13px;
    font-weight:600;
    letter-spacing:1px;
    color:var(--primary);
    text-transform:uppercase;
}
.section-kicker::before{
    content:"";
    width:20px;
    height:2px;
    background:var(--primary);
    border-radius:8px;
}
.section-head{
    margin-bottom:32px;
}
.section-head h2{
    font-size:clamp(1.6rem,3vw,2.3rem);
    font-weight:800;
    letter-spacing:-0.02em;
    color:#F2F8FF;
    margin:8px 0 0;
}
.section-head p{
    max-width:760px;
    color:var(--text-2);
    margin:10px 0 0;
}
@media(min-width:992px){
    .section-head.is-row{
        display:flex;
        align-items:flex-end;
        justify-content:space-between;
        gap:36px;
    }
}

/* ---------- category hero ---------- */
.category-hero{
    position:relative;
    padding:clamp(3rem,6vw,5.6rem) 0 clamp(3rem,6vw,5rem);
    border-bottom:1px solid rgba(148,205,255,0.09);
    overflow:hidden;
    background-image:
        linear-gradient(115deg, rgba(7,13,21,0.92) 0%, rgba(12,24,38,0.78) 50%, rgba(16,35,56,0.36) 100%),
        url('/assets/images/backpic/back-1.webp');
    background-size:cover;
    background-position:center;
}
.category-hero::before{
    content:"";
    position:absolute;
    top:-120px;
    right:-80px;
    width:380px;
    height:380px;
    border-radius:50%;
    background:radial-gradient(circle, rgba(52,227,255,0.25), transparent 62%);
    pointer-events:none;
}
.category-hero::after{
    content:"";
    position:absolute;
    left:-96px;
    bottom:-160px;
    width:430px;
    height:430px;
    border-radius:50%;
    background:radial-gradient(circle, rgba(138,123,255,0.20), transparent 64%);
    pointer-events:none;
}
.cat-hero-grid{
    display:grid;
    grid-template-columns:minmax(0,1fr) 280px;
    gap:clamp(2rem,7vw,5.5rem);
    align-items:center;
}
.cat-breadcrumb{
    margin:0 0 22px;
    font-size:14px;
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:8px;
    color:var(--text-3);
}
.cat-breadcrumb a{
    color:var(--text-2);
    transition:color .2s ease;
}
.cat-breadcrumb a:hover{color:var(--primary)}
.cat-breadcrumb .slash{color:var(--text-3)}
.category-hero h1{
    font-size:clamp(2.2rem,4.4vw,3.4rem);
    line-height:1.18;
    font-weight:800;
    letter-spacing:-0.04em;
    color:#F7FBFF;
    margin:0 0 18px;
}
.category-hero h1 .gradient-text{
    color:transparent;
    background:linear-gradient(120deg,#EAF8FF,var(--primary) 58%,#8A7BFF);
    -webkit-background-clip:text;
    background-clip:text;
}
.hero-description{
    font-size:1.08rem;
    line-height:1.85;
    color:var(--text-2);
    max-width:680px;
    margin:0 0 28px;
}
.hero-actions{
    display:flex;
    flex-wrap:wrap;
    gap:14px;
    align-items:center;
    margin-bottom:28px;
}
.hero-trust{
    list-style:none;
    margin:0;
    padding:0;
    display:flex;
    flex-wrap:wrap;
    gap:12px 26px;
    font-size:14px;
    color:var(--text-2);
}
.hero-trust li{display:inline-flex;align-items:center;gap:7px}
.hero-trust i{color:var(--online);font-size:14px}
.category-badge{
    width:250px;
    justify-self:center;
    background:rgba(145,190,230,0.07);
    border:1px solid rgba(148,205,255,0.18);
    border-radius:50%;
    aspect-ratio:1;
    display:flex;
    flex-direction:column;
    justify-content:center;
    align-items:center;
    box-shadow:0 0 42px rgba(52,227,255,0.08), var(--card-shadow);
    backdrop-filter:blur(8px);
    position:relative;
}
.category-badge::after{
    content:"";
    position:absolute;
    inset:-12px;
    border:1px dashed rgba(148,205,255,0.24);
    border-radius:50%;
}
.category-badge strong{
    font-size:36px;
    font-weight:800;
    color:var(--primary);
    line-height:1;
    letter-spacing:-0.02em;
}
.category-badge span{
    font-size:14px;
    color:var(--text-2);
    margin-top:10px;
}
.category-badge small{
    color:var(--text-3);
    font-size:12px;
    margin-top:3px;
}

/* ---------- intro two column ---------- */
.intro-grid{
    display:grid;
    grid-template-columns:0.86fr 1.14fr;
    gap:clamp(2rem,6vw,4.6rem);
    align-items:center;
}
.intro-media{
    position:relative;
}
.intro-media::before{
    content:"";
    position:absolute;
    inset:20px -14px -14px 20px;
    background:radial-gradient(circle at center, rgba(52,227,255,0.14), transparent 66%);
    border-radius:var(--radius-lg);
    z-index:-1;
}
.intro-media img{
    border-radius:var(--radius-lg);
    border:1px solid var(--glass-border);
    box-shadow:var(--card-shadow);
    width:100%;
    object-fit:cover;
    aspect-ratio:5/5.2;
}
.media-caption{
    margin-top:14px;
    font-size:13px;
    color:var(--text-3);
    display:flex;
    align-items:center;
    gap:8px;
}
.media-caption i{color:var(--primary)}
.intro-copy h2,
.intro-copy h3{
    font-weight:800;
    color:var(--text-1);
    margin:0 0 14px;
}
.intro-copy h2{font-size:1.9rem}
.intro-copy .section-kicker{margin-bottom:14px}
.intro-copy p{
    color:var(--text-2);
    margin-bottom:20px;
}
.intro-list{
    list-style:none;
    margin:0 0 24px;
    padding:0;
}
.intro-list li{
    display:flex;
    align-items:flex-start;
    gap:12px;
    padding:14px 0;
    border-bottom:1px solid rgba(148,205,255,0.09);
    color:var(--text-1);
    font-size:15px;
}
.intro-list li:last-child{border-bottom:0}
.intro-list i{
    color:var(--online);
    margin-top:5px;
}
.intro-list b{
    font-weight:700;
    color:#E8F6FF;
}
.intro-list small{
    display:block;
    color:var(--text-3);
    line-height:1.6;
    margin-top:3px;
    font-size:13px;
}
.intro-meta-note{
    display:flex;
    flex-wrap:wrap;
    gap:14px;
}
.intro-meta-note .tag-badge{
    background:rgba(52,227,255,0.08);
    color:var(--primary);
    border:1px solid rgba(52,227,255,0.18);
    padding:7px 12px;
    border-radius:var(--radius-pill);
    font-size:13px;
}

/* ---------- featured area ---------- */
.featured-wrap{
    background:linear-gradient(180deg, rgba(12,24,38,0.4), rgba(7,13,21,0.2));
    border-top:1px solid rgba(148,205,255,0.08);
    border-bottom:1px solid rgba(148,205,255,0.08);
}
.featured-layout{
    display:grid;
    grid-template-columns:minmax(0,1.08fr) minmax(280px,0.92fr);
    gap:24px;
    align-items:stretch;
}
.featured-main{
    position:relative;
    border-radius:var(--radius-lg);
    overflow:hidden;
    box-shadow:var(--card-shadow);
    border:1px solid rgba(148,205,255,0.18);
    background:rgba(16,35,56,0.7);
    min-height:360px;
    display:flex;
    align-items:flex-end;
}
.featured-main img.featured-bg{
    position:absolute;
    width:100%;
    height:100%;
    object-fit:cover;
    filter:brightness(0.62) saturate(1.1);
    transition:transform .6s ease;
}
.featured-main:hover img.featured-bg{
    transform:scale(1.04);
}
.featured-main::after{
    content:"";
    position:absolute;
    inset:0;
    background:linear-gradient(180deg, rgba(7,13,21,0.1) 0%, rgba(7,13,21,0.95) 96%);
    pointer-events:none;
}
.featured-main-body{
    position:relative;
    z-index:2;
    padding:24px;
}
.featured-main-body h3{
    margin:10px 0 8px;
    font-size:22px;
}
.featured-main-body h3 a:hover{color:var(--primary)}
.featured-main-body p{
    font-size:14px;
    color:var(--text-2);
    max-width:520px;
}
.featured-side{
    display:grid;
    gap:18px;
}
.feature-row{
    display:grid;
    grid-template-columns:132px 1fr;
    gap:16px;
    align-items:stretch;
    background:rgba(145,190,230,0.06);
    border:1px solid rgba(148,205,255,0.12);
    border-radius:var(--radius-md);
    overflow:hidden;
    transition:transform .25s ease, background .25s ease, border-color .25s ease;
}
.feature-row:hover{
    transform:translateY(-4px);
    background:rgba(148,205,255,0.10);
    border-color:rgba(148,205,255,0.32);
}
.feature-row img{
    width:100%;
    height:100%;
    object-fit:cover;
}
.feature-row-content{
    padding:16px 12px;
    display:flex;
    flex-direction:column;
    justify-content:center;
}
.feature-row-content h3{
    font-size:18px;
    margin:8px 0 6px;
    line-height:1.5;
}
.feature-row-content h3 a:hover{color:var(--primary)}
.feature-row-content p{
    font-size:13px;
    color:var(--text-3);
    margin-bottom:8px;
    line-height:1.65;
    overflow:hidden;
    text-overflow:ellipsis;
    display:-webkit-box;
    -webkit-line-clamp:2;
    -webkit-box-orient:vertical;
}
.status-dot{
    display:inline-flex;
    align-items:center;
    gap:6px;
    font-size:12px;
    color:var(--online);
}
.status-dot::before{
    content:"";
    width:7px;
    height:7px;
    border-radius:50%;
    background:var(--online);
}

/* ---------- timeline list ---------- */
.timeline-list{
    list-style:none;
    margin:0;
    padding:0;
    position:relative;
}
.timeline-list::before{
    content:"";
    position:absolute;
    left:25px;
    top:12px;
    bottom:32px;
    width:2px;
    background:linear-gradient(180deg, rgba(52,227,255,0.65), rgba(138,123,255,0.2));
}
.timeline-item{
    position:relative;
    margin:0 0 26px;
    padding-left:74px;
}
.timeline-item::before{
    content:"";
    position:absolute;
    left:18px;
    top:26px;
    width:16px;
    height:16px;
    border-radius:50%;
    background:var(--bg-0);
    border:3px solid var(--primary);
    box-shadow:0 0 0 6px rgba(52,227,255,0.15);
}
.timeline-panel{
    background:rgba(145,190,230,0.05);
    border:1px solid rgba(148,205,255,0.13);
    border-radius:var(--radius-md);
    padding:22px;
    transition:transform .25s ease, background .25s ease, border-color .25s ease;
}
.timeline-panel:hover{
    transform:translateY(-3px);
    border-color:rgba(148,205,255,0.34);
    background:rgba(148,205,255,0.09);
}
.timeline-panel-head{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:10px;
    margin-bottom:8px;
}
.tag-badge{
    display:inline-flex;
    align-items:center;
    gap:6px;
    background:rgba(255,255,255,0.06);
    border:1px solid rgba(255,255,255,0.08);
    color:var(--text-2);
    font-size:12px;
    padding:3px 10px;
    border-radius:var(--radius-pill);
    line-height:1.6;
}
.tag-badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--secondary)}
.tag-badge.green::before{background:var(--online)}
.tag-badge.cyan::before{background:var(--primary)}
.tag-badge.orange::before{background:var(--warning)}
.time-label{
    color:var(--text-3);
    font-size:12px;
    letter-spacing:0.03em;
}
.timeline-panel h3{
    font-size:20px;
    margin:0 0 8px;
}
.timeline-panel h3 a:hover{color:var(--primary)}
.timeline-panel p{
    color:var(--text-2);
    margin:0;
    font-size:15px;
}
.timeline-panel .more-info{
    display:inline-flex;
    align-items:center;
    gap:7px;
    color:var(--primary);
    font-size:14px;
    margin-top:14px;
}
.timeline-panel .more-info i{transition:transform .2s ease}
.timeline-panel .more-info:hover i{transform:translateX(4px)}

/* ---------- quick steps ---------- */
.steps-section{
    background:linear-gradient(180deg, rgba(7,13,21,0.2), rgba(16,35,56,0.28));
    border-top:1px solid rgba(148,205,255,0.07);
    border-bottom:1px solid rgba(148,205,255,0.07);
}
.steps-grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:22px;
    margin-top:18px;
}
.step-card{
    position:relative;
    background:rgba(145,190,230,0.05);
    border:1px solid rgba(148,205,255,0.11);
    border-radius:var(--radius-md);
    padding:28px 22px 24px;
    transition:all .25s ease;
    min-height:230px;
}
.step-card:hover{
    transform:translateY(-6px);
    border-color:rgba(52,227,255,0.4);
    background:rgba(52,227,255,0.07);
    box-shadow:0 16px 30px rgba(0,0,0,0.22);
}
.step-card-number{
    position:relative;
    display:inline-flex;
    font-size:14px;
    font-weight:800;
    color:#0B1A28;
    background:linear-gradient(135deg,#A7F3FF,var(--primary));
    width:36px;
    height:36px;
    border-radius:50%;
    align-items:center;
    justify-content:center;
    margin-bottom:18px;
    box-shadow:0 0 12px rgba(52,227,255,0.4);
}
.step-card h3{
    font-size:18px;
    color:var(--text-1);
    margin-bottom:9px;
}
.step-card p{
    color:var(--text-2);
    font-size:14px;
    margin:0;
}

/* ---------- FAQ ---------- */
.faq-wrap{
    max-width:900px;
    margin:0 auto;
}
.accordion-item{
    background:rgba(145,190,230,0.055);
    border:1px solid rgba(148,205,255,0.13);
    border-radius:var(--radius-md) !important;
    margin-bottom:16px;
    overflow:hidden;
    box-shadow:0 10px 28px rgba(0,0,0,0.12);
}
.accordion-button{
    background:transparent;
    color:var(--text-1);
    font-size:17px;
    font-weight:600;
    padding:20px 22px;
    box-shadow:none !important;
    border-radius:var(--radius-md) !important;
    position:relative;
}
.accordion-button::after{
    flex-shrink:0;
    background:none;
    font-family:"Font Awesome 6 Free";
    content:"\f067";
    font-weight:900;
    font-size:16px;
    width:24px;
    height:24px;
    color:var(--primary);
    display:inline-flex;
    align-items:center;
    justify-content:center;
}
.accordion-button:not(.collapsed){
    background:rgba(52,227,255,0.10);
    color:#fff;
}
.accordion-button:not(.collapsed)::after{
    content:"\f068";
}
.accordion-button:focus-visible{
    box-shadow:0 0 0 3px rgba(52,227,255,0.4) !important;
}
.accordion-body{
    background:transparent;
    color:var(--text-2);
    border-top:1px solid rgba(148,205,255,0.08);
    padding:18px 22px 22px;
    line-height:1.85;
    font-size:15px;
}

/* ---------- CTA ---------- */
.cta-box{
    position:relative;
    background:
        radial-gradient(circle at 85% 10%, rgba(138,123,255,0.25), transparent 18rem),
        linear-gradient(130deg, rgba(16,35,56,0.96), rgba(7,13,21,0.94)),
        url('/assets/images/backpic/back-2.png');
    background-size:cover;
    background-position:center;
    border:1px solid rgba(148,205,255,0.22);
    border-radius:var(--radius-lg);
    padding:clamp(2.2rem,5vw,4.2rem);
    overflow:hidden;
    box-shadow:var(--card-shadow);
}
.cta-box::before{
    content:"";
    position:absolute;
    inset:0;
    pointer-events:none;
    background:radial-gradient(ellipse at 12% 50%, rgba(52,227,255,0.12), transparent 50%);
}
.cta-box h2{
    font-size:clamp(1.6rem,3.6vw,2.5rem);
    font-weight:800;
    color:#F3F9FF;
    margin:0 0 14px;
}
.cta-box p{
    max-width:760px;
    color:var(--text-2);
    margin:0 0 28px;
    font-size:16px;
}
.cta-inner{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    justify-content:space-between;
    gap:32px;
}
.cta-inner .btn{flex:0 0 auto}

/* ---------- footer ---------- */
.site-footer{
    background:rgba(3,8,14,0.86);
    border-top:1px solid rgba(148,205,255,0.10);
    padding:58px 0 24px;
    margin-top:clamp(3rem,7vw,6rem);
}
.footer-grid{
    display:grid;
    grid-template-columns:1.6fr 1fr 1fr;
    gap:clamp(2rem,5vw,4rem);
    padding-bottom:32px;
}
.footer-brand .brand{
    margin-bottom:14px;
}
.footer-desc{
    color:var(--text-3);
    font-size:14px;
    line-height:1.8;
    max-width:390px;
    margin:14px 0 0;
}
.footer-nav-title{
    color:var(--text-1);
    font-weight:700;
    margin-bottom:15px;
    font-size:16px;
    position:relative;
    padding-bottom:8px;
}
.footer-nav-title::after{
    content:"";
    position:absolute;
    left:0;
    bottom:0;
    width:22px;
    height:2px;
    background:var(--primary);
    border-radius:3px;
}
.footer-links{
    list-style:none;
    margin:0;
    padding:0;
}
.footer-links li{
    margin-bottom:7px;
}
.footer-links a{
    color:var(--text-3);
    font-size:14px;
    display:inline-flex;
    align-items:center;
    gap:6px;
    transition:color .2s ease, transform .2s ease;
}
.footer-links a i{
    font-size:12px;
    color:var(--text-3);
}
.footer-links a:hover{
    color:var(--primary);
    transform:translateX(3px);
}
.footer-bottom{
    border-top:1px solid rgba(148,205,255,0.08);
    padding-top:22px;
    display:flex;
    flex-wrap:wrap;
    justify-content:space-between;
    gap:8px 24px;
    color:var(--text-3);
    font-size:13px;
}
.footer-bottom a{color:var(--text-3)}
.footer-bottom a:hover{color:var(--primary)}

/* ---------- bottom mobile bar ---------- */
.mobile-toolbar{
    position:fixed;
    left:50%;
    bottom:16px;
    transform:translateX(-50%);
    z-index:80;
    display:flex;
    background:rgba(10,18,28,0.94);
    backdrop-filter:blur(16px);
    border:1px solid rgba(148,205,255,0.22);
    border-radius:var(--radius-pill);
    padding:7px;
    gap:5px;
    box-shadow:0 14px 36px rgba(0,0,0,0.42);
    opacity:0;
    visibility:hidden;
}
.mobile-toolbar a,
.mobile-toolbar span.tool-item{
    display:inline-flex;
    align-items:center;
    gap:7px;
    color:var(--text-2);
    padding:9px 15px;
    border-radius:var(--radius-pill);
    font-size:13px;
    transition:all .25s ease;
    cursor:pointer;
    white-space:nowrap;
}
.mobile-toolbar a:hover,
.mobile-toolbar span.tool-item:hover{
    background:rgba(52,227,255,0.1);
    color:#fff;
}
@media(max-width:768px){
    .mobile-toolbar{
        opacity:1;
        visibility:visible;
        max-width:calc(100% - 20px);
        overflow-x:auto;
    }
    body{
        padding-bottom:72px;
    }
}

/* ---------- responsive ---------- */
@media(max-width:1024px){
    .cat-hero-grid{
        grid-template-columns:1fr;
        gap:42px;
    }
    .category-badge{
        width:210px;
        justify-self:start;
    }
    .featured-layout{
        grid-template-columns:1fr;
    }
    .steps-grid{
        grid-template-columns:repeat(2,1fr);
    }
    .intro-grid{
        grid-template-columns:1fr;
        gap:34px;
    }
    .footer-grid{
        grid-template-columns:1fr 1fr;
    }
}
@media(max-width:768px){
    .header-inner{
        min-height:64px;
        gap:14px;
    }
    .main-nav{
        width:100%;
        margin-left:0;
        order:3;
        gap:4px;
    }
    .main-nav a.nav-link{
        padding:9px 13px;
        font-size:14px;
    }
    .intro-media img{
        aspect-ratio:5/4;
    }
    .feature-row{
        grid-template-columns:104px 1fr;
    }
    .timeline-item{
        padding-left:56px;
    }
    .timeline-item::before{
        left:8px;
    }
    .timeline-list::before{
        left:15px;
    }
    .steps-grid{
        grid-template-columns:1fr;
    }
    .footer-grid{
        grid-template-columns:1fr;
        gap:28px;
    }
    .category-hero h1{
        font-size:clamp(1.8rem,6vw,2.4rem);
    }
    .cat-breadcrumb{
        font-size:13px;
    }
}
@media(max-width:520px){
    .container{
        padding-left:18px;
        padding-right:18px;
    }
    .feature-row{
        grid-template-columns:1fr;
    }
    .feature-row img{
        aspect-ratio:16/9;
    }
    .btn{
        width:100%;
    }
    .hero-actions .btn{
        width:100%;
    }
    .main-nav a.nav-link.active::after{
        left:14px;
        right:14px;
    }
}

/* roulang page: category3 */
:root {
      --bg-0: #070D15;
      --bg-1: #0C1826;
      --bg-2: #102338;
      --glass-bg: rgba(145, 190, 230, 0.055);
      --glass-border: rgba(148, 205, 255, 0.14);
      --glass-hover: rgba(148, 205, 255, 0.1);
      --primary: #34E3FF;
      --primary-glow: rgba(52, 227, 255, 0.35);
      --secondary: #8A7BFF;
      --online: #69F0AE;
      --warning: #FFC36B;
      --hot: #FF7A6B;
      --text-1: #EAF3FF;
      --text-2: #A0B8D0;
      --text-3: #65809B;
      --radius-sm: 10px;
      --radius-md: 18px;
      --radius-lg: 20px;
      --radius-pill: 999px;
      --card-shadow: 0 16px 40px rgba(0, 0, 0, 0.25);
      --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      --font-num: "Inter", "DIN Alternate", "PingFang SC", sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
      scroll-padding-top: 96px;
    }

    body {
      font-family: var(--font-main);
      background:
        radial-gradient(1100px 520px at 85% -12%, rgba(52, 227, 255, 0.1), transparent 58%),
        radial-gradient(900px 500px at -12% 50%, rgba(138, 123, 255, 0.09), transparent 56%),
        var(--bg-0);
      color: var(--text-1);
      line-height: 1.75;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
    }

    body,
    button,
    input,
    textarea {
      font-family: var(--font-main);
    }

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

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

    ul,
    ol {
      list-style: none;
    }

    button {
      border: 0;
      background: transparent;
    }

    ::selection {
      background: rgba(52, 227, 255, 0.25);
      color: var(--text-1);
    }

    a:focus-visible,
    button:focus-visible,
    [tabindex]:focus-visible {
      outline: 2px solid var(--primary);
      outline-offset: 3px;
      border-radius: 6px;
    }

    .container {
      max-width: 1240px;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 1080;
      background: rgba(7, 13, 21, 0.82);
      backdrop-filter: blur(18px);
      -webkit-backdrop-filter: blur(18px);
      border-bottom: 1px solid rgba(148, 205, 255, 0.12);
    }

    .site-header::after {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      bottom: -1px;
      height: 1px;
      background: linear-gradient(90deg, transparent 0%, rgba(52, 227, 255, 0.28) 30%, rgba(52, 227, 255, 0.05) 70%, transparent 100%);
    }

    .header-inner {
      display: flex;
      align-items: center;
      min-height: 76px;
      gap: 12px;
    }

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

    .brand-symbol {
      width: 44px;
      height: 44px;
      flex: 0 0 auto;
      border-radius: 50%;
      background: radial-gradient(circle at 32% 25%, rgba(52, 227, 255, 0.18), rgba(7, 13, 21, 0.9) 78%);
      border: 1px solid rgba(52, 227, 255, 0.35);
      color: var(--primary);
      font-size: 1.35rem;
      font-weight: 800;
      display: grid;
      place-items: center;
      box-shadow: 0 0 18px rgba(52, 227, 255, 0.18), inset 0 0 8px rgba(52, 227, 255, 0.12);
      position: relative;
    }

    .brand-symbol::after {
      content: "";
      position: absolute;
      inset: 5px;
      border: 1px dashed rgba(138, 123, 255, 0.45);
      border-radius: 50%;
    }

    .brand-name {
      font-size: 1.18rem;
      font-weight: 800;
      letter-spacing: 0.02em;
      color: var(--text-1);
      white-space: nowrap;
    }

    .main-nav {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 4px;
      flex: 1;
    }

    .nav-link {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      padding: 0.55rem 0.8rem;
      border: 1px solid transparent;
      border-radius: var(--radius-pill);
      font-size: 0.95rem;
      color: var(--text-2);
      transition: color .2s ease, background .2s ease, border-color .2s ease, box-shadow .2s ease;
      white-space: nowrap;
      line-height: 1;
      position: relative;
    }

    .nav-link i {
      width: 14px;
      font-size: 0.82rem;
      text-align: center;
    }

    .nav-link:hover {
      color: var(--text-1);
      background: rgba(148, 205, 255, 0.08);
      border-color: rgba(148, 205, 255, 0.08);
    }

    .nav-link.active {
      color: var(--text-1);
      background: rgba(52, 227, 255, 0.1);
      border-color: rgba(52, 227, 255, 0.16);
      box-shadow: 0 0 20px rgba(52, 227, 255, 0.08);
    }

    .nav-link.active::after {
      content: "";
      position: absolute;
      bottom: -2px;
      left: 50%;
      transform: translateX(-50%);
      width: 20px;
      height: 2px;
      border-radius: 99px;
      background: linear-gradient(90deg, transparent, var(--primary), transparent);
    }

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

    .site-cta {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      height: 40px;
      padding: 0 16px;
      border-radius: var(--radius-pill);
      border: 1px solid rgba(52, 227, 255, 0.28);
      background: rgba(52, 227, 255, 0.08);
      color: var(--text-1);
      font-size: 0.88rem;
      font-weight: 600;
      transition: all .25s ease;
    }

    .site-cta:hover {
      background: rgba(52, 227, 255, 0.16);
      border-color: rgba(52, 227, 255, 0.45);
      box-shadow: 0 0 16px rgba(52, 227, 255, 0.15);
    }

    .nav-toggle {
      display: none;
      place-items: center;
      width: 42px;
      height: 42px;
      border-radius: 50%;
      border: 1px solid var(--glass-border);
      background: rgba(145, 190, 230, 0.08);
      color: var(--text-1);
      font-size: 1.05rem;
      cursor: pointer;
      transition: all .25s ease;
    }

    .nav-toggle:hover {
      background: rgba(52, 227, 255, 0.15);
      border-color: rgba(52, 227, 255, 0.4);
    }

    .cat-hero {
      position: relative;
      padding: clamp(3rem, 7vw, 5.6rem) 0 2rem;
      background:
        linear-gradient(90deg, rgba(7, 13, 21, 0.95) 0%, rgba(12, 24, 38, 0.82) 55%, rgba(16, 35, 56, 0.74) 100%),
        url("/assets/images/backpic/back-1.webp") center / cover no-repeat;
      overflow: hidden;
    }

    .cat-hero::before {
      content: "";
      position: absolute;
      width: 520px;
      height: 520px;
      right: -160px;
      top: -220px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(52, 227, 255, 0.22), transparent 65%);
      z-index: 0;
      pointer-events: none;
    }

    .cat-hero::after {
      content: "";
      position: absolute;
      inset: 0;
      z-index: 0;
      background-image: radial-gradient(rgba(148, 205, 255, 0.22) 1px, transparent 1px);
      background-size: 28px 28px;
      opacity: 0.16;
      pointer-events: none;
    }

    .cat-hero-grid {
      position: relative;
      z-index: 2;
      display: grid;
      grid-template-columns: minmax(0, 1.35fr) minmax(260px, 0.65fr);
      align-items: center;
      gap: 2.5rem;
    }

    .crumbline {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 8px;
      font-size: 0.82rem;
      color: var(--text-3);
      margin-bottom: 1.1rem;
    }

    .crumbline a {
      color: var(--text-2);
      transition: color .2s ease;
    }

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

    .crumbline span + span {
      color: rgba(160, 184, 208, 0.72);
    }

    .cat-hero h1 {
      font-size: clamp(2.1rem, 4.2vw, 3.45rem);
      font-weight: 800;
      letter-spacing: 0.01em;
      line-height: 1.18;
      margin-bottom: 1.2rem;
      color: var(--text-1);
    }

    .cat-hero h1 .soft-text {
      background: linear-gradient(120deg, var(--text-1), var(--primary));
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
    }

    .cat-hero-lead {
      max-width: 635px;
      font-size: 1.05rem;
      color: var(--text-2);
      margin-bottom: 1.6rem;
    }

    .hero-btn-row {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      align-items: center;
      margin-top: 1.6rem;
    }

    .ui-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      padding: 0.85rem 1.3rem;
      border-radius: 999px;
      font-size: 0.95rem;
      font-weight: 700;
      border: 1px solid transparent;
      line-height: 1;
      transition: all .25s ease;
      cursor: pointer;
    }

    .ui-btn.primary {
      background: linear-gradient(135deg, #2AC7E8, #34E3FF);
      color: #001018;
      box-shadow: 0 0 22px rgba(52, 227, 255, 0.25);
    }

    .ui-btn.primary:hover {
      box-shadow: 0 0 34px rgba(52, 227, 255, 0.42);
      transform: translateY(-2px);
      color: #001018;
    }

    .ui-btn.soft {
      background: rgba(145, 190, 230, 0.08);
      border-color: rgba(148, 205, 255, 0.18);
      color: var(--text-1);
    }

    .ui-btn.soft:hover {
      background: rgba(148, 205, 255, 0.14);
      border-color: rgba(52, 227, 255, 0.35);
      color: var(--text-1);
      transform: translateY(-2px);
    }

    .hero-status-wrap {
      display: flex;
      justify-content: flex-end;
    }

    .hero-status {
      width: 260px;
      aspect-ratio: 1;
      position: relative;
      display: grid;
      place-items: center;
    }

    .status-orb {
      position: absolute;
      inset: 0;
      border-radius: 50%;
      border: 1px solid rgba(52, 227, 255, 0.2);
      box-shadow: 0 0 40px rgba(52, 227, 255, 0.08);
    }

    .status-orb.two {
      inset: 20px;
      border-style: dashed;
      border-color: rgba(138, 123, 255, 0.26);
      animation: spin 32s linear infinite;
    }

    .status-orb.two::before {
      content: "";
      position: absolute;
      top: -5px;
      left: 50%;
      width: 10px;
      height: 10px;
      background: var(--online);
      border-radius: 50%;
      box-shadow: 0 0 12px var(--online);
    }

    @keyframes spin {
      to {
        transform: rotate(360deg);
      }
    }

    .status-core {
      position: relative;
      z-index: 2;
      width: 148px;
      height: 148px;
      border-radius: 50%;
      background: radial-gradient(circle at 35% 28%, rgba(52, 227, 255, 0.12), #0b1724 80%);
      border: 1px solid rgba(148, 205, 255, 0.22);
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      text-align: center;
      box-shadow: 0 0 30px rgba(0, 0, 0, 0.3);
    }

    .status-core span {
      font-size: 0.8rem;
      color: var(--text-3);
      letter-spacing: 0.12em;
    }

    .status-core strong {
      font-family: var(--font-num);
      font-size: 2.25rem;
      line-height: 1.1;
      font-weight: 700;
      color: var(--primary);
      margin: 4px 0 2px;
    }

    .status-core small {
      color: var(--text-2);
      font-size: 0.88rem;
    }

    .category-filters {
      padding: 2rem 0 1.2rem;
      position: relative;
      z-index: 3;
    }

    .filter-toolbar {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 10px;
      padding: 1rem 1.1rem;
      background: rgba(145, 190, 230, 0.045);
      border: 1px solid rgba(148, 205, 255, 0.1);
      border-radius: var(--radius-md);
    }

    .filter-title {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-weight: 700;
      color: var(--text-1);
      margin-right: 10px;
      font-size: 0.95rem;
    }

    .filter-title i {
      color: var(--primary);
    }

    .filter-pill {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      padding: 7px 14px;
      border-radius: 999px;
      background: rgba(145, 190, 230, 0.07);
      border: 1px solid transparent;
      color: var(--text-2);
      font-size: 0.86rem;
      transition: all .2s ease;
    }

    .filter-pill.active {
      background: rgba(52, 227, 255, 0.13);
      border-color: rgba(52, 227, 255, 0.25);
      color: var(--text-1);
    }

    .filter-pill::before {
      content: "";
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--text-3);
    }

    .filter-pill.active::before {
      background: var(--primary);
      box-shadow: 0 0 8px var(--primary);
    }

    .content-section {
      padding: clamp(3rem, 6vw, 5rem) 0;
    }

    .section-heading {
      display: flex;
      flex-wrap: wrap;
      align-items: flex-end;
      justify-content: space-between;
      gap: 18px;
      margin-bottom: 2rem;
    }

    .head-kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 0.76rem;
      letter-spacing: 0.18em;
      text-transform: uppercase;
      color: var(--primary);
      margin-bottom: 0.55rem;
    }

    .head-kicker::before {
      content: "";
      width: 22px;
      height: 1px;
      background: linear-gradient(90deg, transparent, var(--primary));
    }

    .heading-title {
      font-size: clamp(1.7rem, 3vw, 2.35rem);
      font-weight: 800;
      line-height: 1.25;
      color: var(--text-1);
      margin: 0;
    }

    .section-note {
      max-width: 380px;
      color: var(--text-3);
      font-size: 0.92rem;
      line-height: 1.7;
      text-align: right;
    }

    .featured-grid {
      display: grid;
      grid-template-columns: repeat(12, 1fr);
      gap: 18px;
    }

    .featured-card {
      position: relative;
      overflow: hidden;
      border: 1px solid var(--glass-border);
      background: var(--bg-2);
      border-radius: var(--radius-lg);
      min-height: 320px;
      display: flex;
      flex-direction: column;
      transition: border-color .25s ease, transform .25s ease, box-shadow .25s ease;
    }

    .featured-card:nth-child(1) {
      grid-column: span 7;
    }

    .featured-card:nth-child(2) {
      grid-column: span 5;
    }

    .featured-card:hover {
      transform: translateY(-4px);
      border-color: rgba(52, 227, 255, 0.28);
      box-shadow: var(--card-shadow);
    }

    .featured-media {
      height: 185px;
      overflow: hidden;
    }

    .featured-card:nth-child(1) .featured-media {
      height: 210px;
    }

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

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

    .featured-body {
      display: flex;
      flex-direction: column;
      flex: 1;
      padding: 1.4rem 1.4rem 1.5rem;
    }

    .featured-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 0.8rem;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(148, 205, 255, 0.1);
      color: var(--text-2);
      padding: 3px 10px;
      border-radius: 999px;
      font-size: 0.76rem;
      line-height: 1.6;
    }

    .tag.hot {
      border-color: rgba(255, 122, 107, 0.28);
      color: rgba(255, 200, 190, 0.95);
    }

    .tag.new {
      border-color: rgba(52, 227, 255, 0.28);
      color: var(--primary);
    }

    .featured-body h3 {
      font-size: 1.25rem;
      font-weight: 700;
      line-height: 1.35;
      color: var(--text-1);
      margin-bottom: 0.6rem;
    }

    .featured-body p {
      color: var(--text-2);
      font-size: 0.92rem;
      line-height: 1.75;
      margin-bottom: 1.1rem;
      display: -webkit-box;
      -webkit-line-clamp: 3;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .text-link {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--primary);
      transition: gap .2s ease;
      margin-top: auto;
    }

    .text-link:hover {
      gap: 11px;
      color: #9EE9FF;
    }

    .text-link i {
      font-size: 0.78rem;
    }

    .timeline-section {
      background:
        linear-gradient(180deg, rgba(12, 24, 38, 0.42), rgba(7, 13, 21, 0.5));
      border-top: 1px solid rgba(148, 205, 255, 0.07);
      border-bottom: 1px solid rgba(148, 205, 255, 0.07);
    }

    .timeline {
      position: relative;
      margin-top: 2rem;
    }

    .timeline-rail {
      position: relative;
    }

    .timeline-rail::before {
      content: "";
      position: absolute;
      left: 122px;
      top: 10px;
      bottom: 10px;
      width: 1px;
      background: linear-gradient(180deg, rgba(52, 227, 255, 0.5), rgba(138, 123, 255, 0.3) 45%, transparent);
    }

    .timeline-item {
      position: relative;
      display: grid;
      grid-template-columns: 130px minmax(0, 1fr);
      gap: 0 26px;
      padding-bottom: 2.25rem;
    }

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

    .timeline-date {
      text-align: right;
      padding: 27px 22px 0 0;
    }

    .timeline-date .date-month {
      display: block;
      font-size: 0.8rem;
      color: var(--text-3);
      font-family: var(--font-num);
      letter-spacing: 0.08em;
    }

    .timeline-date strong {
      display: block;
      font-family: var(--font-num);
      font-size: 1.6rem;
      font-weight: 700;
      color: var(--text-1);
      line-height: 1.2;
    }

    .timeline-item::after {
      content: "";
      position: absolute;
      left: 116px;
      top: 33px;
      width: 14px;
      height: 14px;
      border-radius: 50%;
      background: var(--bg-0);
      border: 2px solid var(--primary);
      box-shadow: 0 0 0 4px rgba(52, 227, 255, 0.12), 0 0 14px rgba(52, 227, 255, 0.45);
      z-index: 2;
    }

    .timeline-card {
      display: grid;
      grid-template-columns: 240px minmax(0, 1fr);
      overflow: hidden;
      background: var(--glass-bg);
      border: 1px solid var(--glass-border);
      border-radius: var(--radius-lg);
      transition: border-color .25s ease, background .25s ease, box-shadow .25s ease, transform .25s ease;
    }

    .timeline-card:hover {
      background: rgba(148, 205, 255, 0.08);
      border-color: rgba(52, 227, 255, 0.24);
      transform: translateY(-3px);
      box-shadow: var(--card-shadow);
    }

    .timeline-media {
      position: relative;
      min-height: 158px;
      height: 100%;
      overflow: hidden;
    }

    .timeline-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform .45s ease;
    }

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

    .timeline-body {
      padding: 1.25rem 1.35rem 1.3rem;
      display: flex;
      flex-direction: column;
    }

    .timeline-meta {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 10px;
      margin-bottom: 0.65rem;
      color: var(--text-3);
      font-size: 0.8rem;
    }

    .timeline-meta i {
      margin-right: 4px;
      color: rgba(52, 227, 255, 0.75);
    }

    .timeline-body h3 {
      font-size: 1.13rem;
      font-weight: 700;
      color: var(--text-1);
      line-height: 1.4;
      margin-bottom: 0.6rem;
    }

    .timeline-body p {
      color: var(--text-2);
      font-size: 0.9rem;
      line-height: 1.7;
      margin-bottom: 1rem;
      display: -webkit-box;
      -webkit-line-clamp: 3;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .faq-section {
      background-image: radial-gradient(800px 380px at 18% 10%, rgba(138, 123, 255, 0.08), transparent 60%);
    }

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

    .faq-stack-title {
      max-width: 580px;
      margin-bottom: 2rem;
    }

    .accordion {
      --bs-accordion-border-width: 0;
      --bs-accordion-bg: transparent;
      --bs-accordion-color: var(--text-2);
      --bs-accordion-btn-color: var(--text-1);
      --bs-accordion-active-color: var(--text-1);
      --bs-accordion-active-bg: transparent;
    }

    .faq-item {
      background: rgba(145, 190, 230, 0.045);
      border: 1px solid rgba(148, 205, 255, 0.12);
      border-radius: var(--radius-md) !important;
      margin-bottom: 12px;
      overflow: hidden;
    }

    .faq-item:hover {
      border-color: rgba(52, 227, 255, 0.22);
    }

    .faq-question {
      width: 100%;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 18px;
      background: transparent;
      border: 0;
      color: var(--text-1);
      font-size: 1rem;
      font-weight: 700;
      text-align: left;
      padding: 1.15rem 1.3rem;
      cursor: pointer;
      border-radius: var(--radius-md) !important;
      box-shadow: none !important;
    }

    .faq-question::after {
      content: "+";
      font-size: 1.5rem;
      line-height: 1;
      color: var(--primary);
      flex-shrink: 0;
      transition: transform .2s ease;
      background-image: none;
      width: auto;
      height: auto;
    }

    .faq-question:not(.collapsed)::after {
      content: "−";
      transform: rotate(0deg);
    }

    .faq-question:hover {
      background: rgba(52, 227, 255, 0.05);
      color: var(--text-1);
    }

    .faq-answer {
      color: var(--text-2);
      font-size: 0.93rem;
      line-height: 1.8;
      padding: 0 1.3rem 1.2rem;
    }

    .cta-band {
      padding: clamp(3rem, 6vw, 5rem) 0;
    }

    .cta-panel {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 26px;
      padding: clamp(1.8rem, 4vw, 3rem);
      border-radius: 24px;
      border: 1px solid rgba(52, 227, 255, 0.2);
      background:
        radial-gradient(440px 220px at 86% 10%, rgba(52, 227, 255, 0.12), transparent 60%),
        radial-gradient(300px 220px at 5% 100%, rgba(138, 123, 255, 0.12), transparent 60%),
        rgba(12, 24, 38, 0.8);
      box-shadow: 0 22px 60px rgba(0, 0, 0, 0.26);
      position: relative;
      overflow: hidden;
    }

    .cta-panel::after {
      content: "";
      position: absolute;
      inset: 0;
      background-image: radial-gradient(rgba(148, 205, 255, 0.12) 1px, transparent 1px);
      background-size: 24px 24px;
      opacity: 0.2;
      pointer-events: none;
    }

    .cta-copy {
      position: relative;
      z-index: 2;
      min-width: 0;
    }

    .cta-copy span {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 0.8rem;
      letter-spacing: 0.12em;
      color: var(--online);
      margin-bottom: 0.5rem;
    }

    .cta-copy h2 {
      font-size: clamp(1.5rem, 2.4vw, 2rem);
      font-weight: 800;
      color: var(--text-1);
      margin: 0 0 0.6rem;
    }

    .cta-copy p {
      color: var(--text-2);
      font-size: 0.95rem;
      margin: 0;
      max-width: 480px;
    }

    .cta-actions {
      position: relative;
      z-index: 2;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 12px;
      flex-shrink: 0;
    }

    .site-footer {
      background: #05090F;
      border-top: 1px solid rgba(148, 205, 255, 0.1);
      padding: 3.2rem 0 1.8rem;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.7fr 1fr 1fr;
      gap: 2rem;
      padding-bottom: 2.4rem;
    }

    .footer-brand {
      display: flex;
      flex-direction: column;
      align-items: flex-start;
      gap: 1rem;
    }

    .footer-brand .brand-name {
      color: var(--text-1);
    }

    .footer-desc {
      color: var(--text-3);
      font-size: 0.9rem;
      line-height: 1.8;
      max-width: 340px;
      margin: 0;
    }

    .footer-nav-title {
      color: var(--text-1);
      font-size: 0.95rem;
      font-weight: 700;
      margin-bottom: 1rem;
    }

    .footer-links li {
      margin-bottom: 0.5rem;
    }

    .footer-links a {
      color: var(--text-2);
      font-size: 0.9rem;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      transition: color .2s ease, padding-left .2s ease;
    }

    .footer-links a i {
      font-size: 0.72rem;
      color: var(--text-3);
    }

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

    .footer-bottom {
      border-top: 1px solid rgba(148, 205, 255, 0.09);
      padding-top: 1.3rem;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      gap: 10px;
      color: var(--text-3);
      font-size: 0.84rem;
    }

    .footer-bottom a {
      color: var(--text-3);
      transition: color .2s ease;
    }

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

    @media (max-width: 1199.98px) {
      .brand-name {
        font-size: 1.08rem;
      }

      .main-nav {
        gap: 2px;
      }

      .nav-link {
        padding: 0.5rem 0.55rem;
        font-size: 0.9rem;
      }

      .hero-status {
        width: 230px;
      }

      .status-core {
        width: 120px;
        height: 120px;
      }
    }

    @media (max-width: 991.98px) {
      .nav-toggle {
        display: inline-grid;
      }

      .site-cta {
        display: none;
      }

      .main-nav {
        position: fixed;
        top: 72px;
        left: 16px;
        right: 16px;
        z-index: 1090;
        flex-direction: column;
        align-items: stretch;
        gap: 6px;
        padding: 12px;
        background: rgba(7, 13, 21, 0.96);
        backdrop-filter: blur(24px);
        -webkit-backdrop-filter: blur(24px);
        border: 1px solid var(--glass-border);
        border-radius: var(--radius-md);
        box-shadow: 0 30px 60px rgba(0, 0, 0, 0.5);
        display: flex;
        opacity: 0;
        visibility: hidden;
        transform: translateY(-8px);
        transition: opacity .2s ease, transform .2s ease, visibility .2s ease;
      }

      .site-header.mobile-open .main-nav {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
      }

      .nav-link {
        width: 100%;
        justify-content: flex-start;
        padding: 0.72rem 0.9rem;
      }

      .nav-link.active::after {
        left: auto;
        transform: none;
        right: 18px;
        width: 8px;
        height: 8px;
        border-radius: 50%;
        background: var(--primary);
        box-shadow: 0 0 10px var(--primary);
      }

      .header-inner {
        min-height: 72px;
      }

      .cat-hero-grid {
        grid-template-columns: 1fr;
      }

      .hero-status-wrap {
        justify-content: center;
      }

      .hero-status {
        width: 220px;
      }

      .featured-card:nth-child(1),
      .featured-card:nth-child(2) {
        grid-column: span 6;
      }

      .timeline-rail::before {
        left: 90px;
      }

      .timeline-item {
        grid-template-columns: 98px minmax(0, 1fr);
      }

      .timeline-item::after {
        left: 84px;
      }

      .timeline-card {
        grid-template-columns: 200px minmax(0, 1fr);
      }

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

    @media (max-width: 767.98px) {
      .section-note {
        text-align: left;
      }

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

      .featured-card:nth-child(1),
      .featured-card:nth-child(2) {
        grid-column: span 1;
      }

      .featured-media,
      .featured-card:nth-child(1) .featured-media {
        height: 190px;
      }

      .timeline-rail::before {
        left: 76px;
      }

      .timeline-item {
        grid-template-columns: 84px minmax(0, 1fr);
        gap: 0 22px;
      }

      .timeline-item::after {
        left: 70px;
      }

      .timeline-date {
        padding-right: 14px;
      }

      .timeline-date .date-month {
        font-size: 0.7rem;
      }

      .timeline-date strong {
        font-size: 1.2rem;
      }

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

      .timeline-media {
        min-height: 160px;
        max-height: 220px;
      }

      .faq-question {
        font-size: 0.94rem;
      }

      .cta-panel {
        flex-direction: column;
        align-items: flex-start;
      }

      .cta-actions {
        width: 100%;
      }

      .cta-actions .ui-btn {
        flex: 1;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
      }

      .footer-bottom {
        flex-direction: column;
      }
    }

    @media (max-width: 575.98px) {
      .brand-symbol {
        width: 38px;
        height: 38px;
        font-size: 1.15rem;
      }

      .brand-name {
        font-size: 0.98rem;
      }

      .hero-btn-row {
        flex-direction: column;
        align-items: stretch;
      }

      .hero-btn-row .ui-btn {
        width: 100%;
      }

      .filter-title {
        width: 100%;
        margin-bottom: 6px;
      }

      .status-core {
        width: 112px;
        height: 112px;
      }

      .timeline-rail::before {
        left: 60px;
      }

      .timeline-item {
        grid-template-columns: 64px minmax(0, 1fr);
        gap: 0 14px;
      }

      .timeline-item::after {
        left: 54px;
      }

      .timeline-date {
        padding: 22px 12px 0 0;
      }

      .timeline-date .date-month {
        font-size: 0.66rem;
      }

      .timeline-date strong {
        font-size: 1.05rem;
      }

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

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

/* roulang page: category4 */
:root {
  --bg-0: #070D15;
  --bg-1: #0C1826;
  --bg-2: #102338;
  --glass-bg: rgba(145, 190, 230, 0.055);
  --glass-border: rgba(148, 205, 255, 0.14);
  --glass-hover: rgba(148, 205, 255, 0.10);
  --primary: #34E3FF;
  --primary-glow: rgba(52, 227, 255, 0.35);
  --secondary: #8A7BFF;
  --online: #69F0AE;
  --warning: #FFC36B;
  --hot: #FF7A6B;
  --text-1: #EAF3FF;
  --text-2: #A0B8D0;
  --text-3: #65809B;
  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 20px;
  --radius-pill: 999px;
  --card-shadow: 0 16px 40px rgba(0, 0, 0, 0.25);
  --section-space: clamp(4rem, 8vw, 7rem);
}
html {
  -webkit-text-size-adjust: 100%;
}
body {
  margin: 0;
  background:
    radial-gradient(circle at 88% 6%, rgba(52, 227, 255, 0.09), transparent 24rem),
    radial-gradient(circle at 12% 84%, rgba(138, 123, 255, 0.07), transparent 28rem),
    linear-gradient(180deg, var(--bg-0), var(--bg-1) 45%, var(--bg-0));
  background-color: var(--bg-0);
  color: var(--text-1);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: 1rem;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image: radial-gradient(rgba(210, 234, 255, 0.03) 1px, transparent 1px);
  background-size: 26px 26px;
  mask-image: linear-gradient(180deg, rgba(0,0,0,0.9), rgba(0,0,0,0.4) 70%, transparent);
  -webkit-mask-image: linear-gradient(180deg, rgba(0,0,0,0.9), rgba(0,0,0,0.4) 70%, transparent);
}
a {
  color: inherit;
  text-decoration: none;
  transition: color 0.22s ease, opacity 0.22s ease, border-color 0.22s ease;
}
ul, ol {
  margin: 0;
  padding: 0;
  list-style: none;
}
img {
  max-width: 100%;
  display: block;
}
button, input, textarea {
  font-family: inherit;
}
.container {
  max-width: 1240px;
  padding-left: 24px;
  padding-right: 24px;
  margin-left: auto;
  margin-right: auto;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-symbol {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at 35% 30%, #8CF6FF 0%, #34E3FF 34%, #174f78 100%);
  color: #06121a;
  font-weight: 800;
  font-size: 20px;
  box-shadow: 0 0 18px rgba(52, 227, 255, 0.36), inset 0 0 8px rgba(255, 255, 255, 0.35);
  position: relative;
}
.brand-symbol::after {
  content: "";
  position: absolute;
  inset: 3px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.4);
}
.brand-name {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--text-1);
  white-space: nowrap;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 1050;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  background: rgba(7, 13, 21, 0.76);
  border-bottom: 1px solid rgba(148, 205, 255, 0.1);
}
.site-header .container {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}
.main-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 8px 14px;
  border-radius: var(--radius-pill);
  color: var(--text-2);
  font-size: 15px;
  line-height: 1.5;
  border: 1px solid transparent;
  background: transparent;
  transition: all 0.22s ease;
  position: relative;
}
.nav-link i {
  font-size: 14px;
  opacity: 0.9;
}
.nav-link:hover,
.nav-link:focus-visible {
  color: var(--text-1);
  background: rgba(148, 205, 255, 0.07);
  border-color: rgba(148, 205, 255, 0.12);
  outline: none;
}
.nav-link.active {
  color: #ffffff;
  background: rgba(52, 227, 255, 0.12);
  border-color: rgba(52, 227, 255, 0.24);
}
.nav-link.active::after {
  content: "";
  position: absolute;
  left: 20%;
  right: 20%;
  bottom: 3px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
  opacity: 0.9;
}
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  background: rgba(148, 205, 255, 0.06);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
}
.nav-toggle span {
  width: 18px;
  height: 2px;
  background: var(--text-1);
  border-radius: 2px;
  display: block;
  margin: 3px auto;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.nav-toggle.on span:nth-child(1) {
  transform: translateY(5px) rotate(45deg);
}
.nav-toggle.on span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0.4);
}
.nav-toggle.on span:nth-child(3) {
  transform: translateY(-5px) rotate(-45deg);
}
.section-block {
  padding: var(--section-space) 0;
}
.page-cat-hero {
  position: relative;
  padding: 72px 0 78px;
  overflow: hidden;
  background:
    linear-gradient(100deg, rgba(7, 13, 21, 0.88), rgba(12, 24, 38, 0.62)),
    url("/assets/images/backpic/back-3.png") center / cover no-repeat;
  border-bottom: 1px solid var(--glass-border);
}
.page-cat-hero::before {
  content: "";
  position: absolute;
  width: 360px;
  height: 360px;
  right: -80px;
  top: -160px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(52, 227, 255, 0.18), transparent 68%);
  pointer-events: none;
}
.page-cat-hero::after {
  content: "";
  position: absolute;
  width: 500px;
  height: 500px;
  left: -160px;
  bottom: -280px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(138, 123, 255, 0.14), transparent 66%);
  pointer-events: none;
}
.cat-hero-inner {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 44px;
}
.cat-hero-copy {
  flex: 1 1 auto;
}
.page-crumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-2);
  margin-bottom: 22px;
  letter-spacing: 0.02em;
}
.page-crumb a {
  color: var(--text-2);
}
.page-crumb a:hover {
  color: var(--primary);
}
.page-crumb .crumb-sep {
  color: var(--text-3);
  opacity: 0.8;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  font-size: 13px;
  color: var(--primary);
  margin-bottom: 18px;
}
.eyebrow i {
  font-size: 13px;
}
.cat-hero-copy h1 {
  font-size: clamp(2.1rem, 4.5vw, 3.2rem);
  line-height: 1.22;
  font-weight: 700;
  margin: 0 0 22px;
  color: var(--text-1);
}
.cat-hero-copy h1 em {
  font-style: normal;
  background: linear-gradient(100deg, var(--primary), #bff6ff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.cat-hero-copy .cat-lead {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-2);
  max-width: 720px;
  margin-bottom: 22px;
}
.cat-hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.tag-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.05);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  font-size: 13px;
  color: var(--text-2);
  border: 1px solid rgba(148, 205, 255, 0.1);
}
.tag-pill i {
  color: var(--online);
}
.shield-panel {
  flex: 0 0 220px;
  position: relative;
}
.shield-card {
  text-align: center;
  padding: 30px 20px;
  background: linear-gradient(145deg, rgba(148, 205, 255, 0.1), rgba(52, 227, 255, 0.04));
  border: 1px solid var(--glass-border);
  box-shadow: var(--card-shadow);
  border-radius: 28px;
  position: relative;
  overflow: hidden;
}
.shield-card::before {
  content: "";
  position: absolute;
  inset: 10px;
  border-radius: 20px;
  border: 1px dashed rgba(52, 227, 255, 0.16);
  pointer-events: none;
}
.shield-orb {
  width: 76px;
  height: 76px;
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  background: radial-gradient(circle at 35% 30%, rgba(255, 255, 255, 0.8), rgba(52, 227, 255, 0.24) 42%, rgba(52, 227, 255, 0.06));
  border: 1px solid rgba(52, 227, 255, 0.45);
  box-shadow: 0 0 28px rgba(52, 227, 255, 0.16);
  color: var(--text-1);
}
.shield-orb strong {
  font-size: 28px;
  line-height: 1;
  font-weight: 800;
}
.shield-orb span {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--text-2);
}
.shield-card .shield-name {
  display: block;
  font-size: 17px;
  font-weight: 700;
  margin: 14px 0 6px;
}
.shield-card .shield-note {
  display: block;
  font-size: 13px;
  color: var(--text-2);
  padding-bottom: 4px;
}
.filter-area {
  padding: 28px 0 0;
}
.filter-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  padding: 18px 20px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(8px);
}
.filter-label {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 15px;
  color: var(--text-2);
  font-weight: 600;
}
.filter-label i {
  color: var(--primary);
}
.filter-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}
.filter-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 15px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(148, 205, 255, 0.1);
  color: var(--text-2);
  font-size: 13px;
  cursor: default;
  transition: all 0.2s ease;
}
.filter-pill.is-active {
  background: rgba(52, 227, 255, 0.14);
  border-color: rgba(52, 227, 255, 0.34);
  color: var(--text-1);
}
.filter-pill i {
  font-size: 10px;
  color: var(--online);
}
.filter-pill:hover {
  background: var(--glass-hover);
  color: var(--text-1);
}
.cat-direction {
  padding-top: var(--section-space);
}
.direction-heading {
  margin-bottom: 28px;
}
.section-heading {
  margin-bottom: 34px;
}
.section-heading .eyebrow {
  margin-bottom: 8px;
}
.section-title,
.direction-title {
  font-size: clamp(1.75rem, 3vw, 2.3rem);
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-1);
  margin: 0 0 12px;
}
.section-intro {
  font-size: 1rem;
  color: var(--text-2);
  max-width: 760px;
  margin: 0;
}
.direction-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.direction-item {
  position: relative;
  padding: 26px 24px;
  border-radius: var(--radius-lg);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  overflow: hidden;
  transition: transform 0.25s ease, border-color 0.25s ease, background 0.25s ease;
}
.direction-item::after {
  content: "";
  position: absolute;
  right: -50px;
  top: -50px;
  width: 130px;
  height: 130px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(52, 227, 255, 0.08), transparent 70%);
}
.direction-item:hover {
  transform: translateY(-4px);
  background: var(--glass-hover);
  border-color: rgba(52, 227, 255, 0.28);
}
.direction-icon {
  width: 48px;
  height: 48px;
  border-radius: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  background: linear-gradient(145deg, rgba(52, 227, 255, 0.16), rgba(138, 123, 255, 0.08));
  border: 1px solid rgba(52, 227, 255, 0.2);
  color: var(--primary);
  margin-bottom: 18px;
}
.direction-item h3 {
  font-size: 18px;
  font-weight: 700;
  margin: 0 0 8px;
  color: var(--text-1);
}
.direction-item p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-2);
  margin: 0 0 16px;
}
.direction-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
}
.direction-link i {
  transition: transform 0.2s ease;
}
.direction-link:hover i {
  transform: translateX(4px);
}
.time-section {
  padding: var(--section-space) 0 0;
}
.timeline-list {
  position: relative;
  padding: 0;
  margin: 26px 0 0;
}
.timeline-list::before {
  content: "";
  position: absolute;
  left: 18px;
  top: 14px;
  bottom: 14px;
  width: 2px;
  background: linear-gradient(180deg, var(--primary), rgba(138, 123, 255, 0.22), transparent);
  border-radius: 2px;
}
.timeline-item {
  position: relative;
  padding-left: 56px;
  padding-bottom: 34px;
}
.timeline-item:last-child {
  padding-bottom: 4px;
}
.timeline-dot {
  position: absolute;
  left: 11px;
  top: 28px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--bg-1);
  border: 2px solid var(--primary);
  box-shadow: 0 0 0 5px rgba(52, 227, 255, 0.12), 0 0 14px rgba(52, 227, 255, 0.4);
}
.topic-row {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 22px;
  align-items: stretch;
  background: rgba(16, 35, 56, 0.52);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(148, 205, 255, 0.11);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform 0.24s ease, border-color 0.24s ease, box-shadow 0.24s ease;
}
.topic-row:hover {
  transform: translateY(-4px);
  border-color: rgba(52, 227, 255, 0.3);
  box-shadow: 0 16px 34px rgba(0, 0, 0, 0.28);
}
.topic-media {
  position: relative;
  min-height: 180px;
  overflow: hidden;
  background: var(--bg-2);
}
.topic-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  inset: 0;
  transition: transform 0.45s ease;
}
.topic-row:hover .topic-media img {
  transform: scale(1.035);
}
.topic-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(7, 13, 21, 0.52));
}
.topic-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  font-size: 12px;
  color: #fff;
  background: rgba(16, 35, 56, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(6px);
}
.topic-badge.hot {
  color: #FFD9D4;
  border-color: rgba(255, 122, 107, 0.3);
}
.topic-body {
  padding: 25px 26px 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.topic-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  align-items: center;
  font-size: 13px;
  color: var(--text-3);
}
.topic-meta .mini-tag {
  color: var(--secondary);
  background: rgba(138, 123, 255, 0.1);
  border: 1px solid rgba(138, 123, 255, 0.18);
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 12px;
}
.topic-meta i {
  margin-right: 4px;
}
.topic-body h3 {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--text-1);
  margin: 0;
}
.topic-body h3 a {
  background: linear-gradient(100deg, var(--text-1), var(--text-1));
  background-repeat: no-repeat;
  background-size: 0% 1px;
  background-position: left 98%;
  transition: background-size 0.25s ease;
}
.topic-body h3 a:hover {
  color: var(--primary);
  background-size: 100% 1px;
}
.topic-summary {
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-2);
  margin: 0;
}
.topic-foot {
  margin-top: auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
}
.topic-read {
  font-size: 13px;
  color: var(--text-3);
  margin-left: auto;
}
.btn-custom {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  background: rgba(52, 227, 255, 0.12);
  border: 1px solid rgba(52, 227, 255, 0.28);
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.22s ease;
}
.btn-custom:hover {
  background: rgba(52, 227, 255, 0.2);
  color: #dffffff;
  box-shadow: 0 0 18px rgba(52, 227, 255, 0.18);
}
.btn-custom i {
  font-size: 12px;
  transition: transform 0.2s ease;
}
.btn-custom:hover i {
  transform: translateX(3px);
}
.faq-section {
  padding: var(--section-space) 0 0;
}
.faq-wrap {
  max-width: 900px;
  margin: 0 auto;
}
.custom-accordion {
  --bs-accordion-bg: transparent;
  --bs-accordion-border-width: 0;
}
.custom-accordion .accordion-item {
  background: transparent;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md) !important;
  margin-bottom: 14px;
  overflow: hidden;
  backdrop-filter: blur(8px);
}
.accordion-header {
  border: 0;
  margin: 0;
}
.accordion-button {
  background: rgba(145, 190, 230, 0.04);
  color: var(--text-1);
  font-size: 16px;
  font-weight: 600;
  padding: 20px 22px;
  box-shadow: none;
  outline: none;
  transition: background 0.2s ease, color 0.2s ease;
}
.accordion-button.collapsed {
  background: rgba(145, 190, 230, 0.03);
}
.accordion-button:not(.collapsed) {
  background: rgba(52, 227, 255, 0.06);
  color: var(--primary);
  box-shadow: none;
}
.accordion-button:focus {
  box-shadow: 0 0 0 3px rgba(52, 227, 255, 0.18);
}
.accordion-button::after {
  width: 20px;
  height: 20px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%2334E3FF'%3E%3Cpath fill-rule='evenodd' d='M8 0a1 1 0 0 1 1 1v6h6a1 1 0 1 1 0 2H9v6a1 1 0 1 1-2 0V9H1a1 1 0 1 1 0-2h6V1a1 1 0 0 1 1-1z'/%3E%3C/svg%3E");
  background-size: 16px;
}
.accordion-body {
  background: rgba(145, 190, 230, 0.02);
  color: var(--text-2);
  font-size: 14px;
  line-height: 1.85;
  padding: 6px 22px 20px;
}
.cta-panel {
  padding: var(--section-space) 0;
}
.cta-box {
  position: relative;
  overflow: hidden;
  border-radius: 28px;
  background:
    linear-gradient(100deg, rgba(52, 227, 255, 0.1), rgba(12, 24, 38, 0.78)),
    url("/assets/images/backpic/back-2.png") center / cover no-repeat;
  border: 1px solid rgba(52, 227, 255, 0.22);
  padding: 46px 44px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}
.cta-box::before {
  content: "";
  position: absolute;
  right: -80px;
  top: -80px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(52, 227, 255, 0.16), transparent 68%);
}
.cta-box h2 {
  font-size: clamp(1.6rem, 2.6vw, 2.1rem);
  font-weight: 700;
  margin: 0 0 10px;
  color: var(--text-1);
}
.cta-box p {
  font-size: 15px;
  color: var(--text-2);
  margin: 0;
  max-width: 640px;
  line-height: 1.8;
}
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  flex-shrink: 0;
}
.btn-primary-glow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 12px 22px;
  border-radius: var(--radius-pill);
  background: linear-gradient(135deg, #34E3FF, #38c6df);
  color: #071018;
  font-size: 15px;
  font-weight: 700;
  border: 0;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  box-shadow: 0 0 0 4px rgba(52, 227, 255, 0.1), 0 8px 24px rgba(52, 227, 255, 0.2);
}
.btn-primary-glow:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 32px var(--primary-glow), 0 10px 28px rgba(52, 227, 255, 0.22);
  color: #06101a;
}
.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: var(--radius-pill);
  background: rgba(145, 190, 230, 0.05);
  border: 1px solid var(--glass-border);
  color: var(--text-1);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.22s ease;
}
.btn-ghost:hover {
  background: var(--glass-hover);
  color: #fff;
  border-color: rgba(52, 227, 255, 0.34);
}
.site-footer {
  background: rgba(5, 11, 18, 0.85);
  border-top: 1px solid rgba(148, 205, 255, 0.1);
  padding: 52px 0 28px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1.2fr 1.2fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand .brand {
  margin-bottom: 16px;
}
.footer-desc {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.9;
  margin: 16px 0 0;
  max-width: 420px;
}
.footer-nav-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-1);
  margin-bottom: 16px;
}
.footer-links li {
  margin-bottom: 10px;
}
.footer-links a {
  font-size: 14px;
  color: var(--text-2);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.footer-links a i {
  font-size: 11px;
  color: var(--text-3);
}
.footer-links a:hover {
  color: var(--primary);
}
.footer-links a:hover i {
  color: var(--primary);
}
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  border-top: 1px solid rgba(148, 205, 255, 0.08);
  padding-top: 24px;
  font-size: 13px;
  color: var(--text-3);
}
.footer-bottom a {
  color: var(--text-3);
}
.footer-bottom a:hover {
  color: var(--primary);
}
:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
  border-radius: 6px;
}
.btn-custom:focus-visible,
.btn-primary-glow:focus-visible,
.btn-ghost:focus-visible,
.nav-toggle:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
}
@media (max-width: 1023px) {
  .direction-grid {
    grid-template-columns: 1fr 1fr;
  }
  .topic-row {
    grid-template-columns: 240px 1fr;
  }
  .cat-hero-inner {
    gap: 26px;
  }
  .shield-panel {
    flex-basis: 190px;
  }
}
@media (max-width: 991px) {
  .nav-toggle {
    display: inline-flex;
  }
  .main-nav {
    display: none;
    position: fixed;
    top: 72px;
    left: 14px;
    right: 14px;
    padding: 14px;
    background: rgba(12, 24, 38, 0.97);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    box-shadow: var(--card-shadow);
    backdrop-filter: blur(18px);
    flex-direction: column;
    align-items: stretch;
    z-index: 1080;
  }
  .main-nav.open {
    display: flex;
  }
  .main-nav .nav-link {
    justify-content: flex-start;
    padding: 12px 16px;
  }
  .nav-link.active::after {
    left: 16px;
    right: auto;
    width: 28px;
    bottom: 4px;
  }
  .page-cat-hero {
    padding: 52px 0 58px;
  }
  .cat-hero-inner {
    flex-direction: column;
    align-items: flex-start;
  }
  .shield-panel {
    width: 100%;
    flex-basis: auto;
  }
  .shield-card {
    max-width: 560px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 767px) {
  .site-header .container {
    min-height: 66px;
  }
  .brand-name {
    font-size: 18px;
  }
  .container {
    padding-left: 20px;
    padding-right: 20px;
  }
  .direction-grid {
    grid-template-columns: 1fr;
  }
  .topic-row {
    grid-template-columns: 1fr;
  }
  .topic-media {
    min-height: 170px;
  }
  .topic-media img {
    position: relative;
  }
  .topic-media::after {
    position: absolute;
  }
  .topic-badge {
    position: absolute;
  }
  .filter-bar {
    flex-direction: column;
    align-items: flex-start;
    padding: 16px;
  }
  .filter-pills {
    width: 100%;
  }
  .cta-box {
    flex-direction: column;
    align-items: flex-start;
    padding: 34px 24px;
  }
  .cta-actions {
    width: 100%;
  }
  .btn-primary-glow,
  .btn-ghost {
    flex: 1;
    justify-content: center;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
    margin-bottom: 32px;
  }
  .footer-bottom {
    flex-direction: column;
    justify-content: center;
    text-align: center;
  }
  .page-crumb {
    font-size: 13px;
    flex-wrap: wrap;
  }
}
@media (max-width: 520px) {
  .brand-symbol {
    width: 36px;
    height: 36px;
    font-size: 18px;
  }
  .section-block {
    padding: 48px 0;
  }
  .cat-hero-copy h1 {
    font-size: 1.85rem;
  }
  .topic-body {
    padding: 20px 18px;
  }
  .topic-body h3 {
    font-size: 18px;
  }
  .accordion-button {
    font-size: 15px;
    padding: 18px 16px;
  }
  .cta-box h2 {
    font-size: 1.5rem;
  }
  .footer-desc {
    font-size: 13px;
  }
}