/* roulang page: index */
:root {
  --bg0: #0B0F1A;
  --bg1: #111927;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-2: rgba(255, 255, 255, 0.07);
  --line: rgba(255, 255, 255, 0.09);
  --line-strong: rgba(255, 255, 255, 0.14);
  --brand: #8B5CF6;
  --brand-2: #C4B5FD;
  --electric: #22D3EE;
  --action: #FF7A00;
  --action-2: #FFB347;
  --ink-title: #F5F7FC;
  --ink-body: #BCC5D4;
  --ink-mute: #7C8BA1;
  --success: #34D399;
  --warning: #FBBF24;
  --danger: #F87171;
  --radius-card: 22px;
  --radius-box: 16px;
  --radius-input: 14px;
  --shadow-lift: 0 2px 12px rgba(0, 0, 0, 0.24);
  --shadow-card: 0 16px 40px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 40px rgba(139, 92, 246, 0.24);
  --font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

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

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

body {
  font-family: var(--font);
  background: var(--bg0);
  color: var(--ink-body);
  line-height: 1.8;
  font-size: 16px;
  min-height: 100vh;
  overflow-x: hidden;
}

body.no-scroll {
  overflow: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.25s ease, border-color 0.25s ease, background 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease, opacity 0.25s ease;
}

ul,
ol {
  list-style: none;
}

button,
input {
  font-family: inherit;
}

input {
  border: 0;
  outline: none;
  transition: background 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

::selection {
  background: rgba(139, 92, 246, 0.4);
  color: var(--ink-title);
}

:focus-visible {
  outline: 2px solid rgba(34, 211, 238, 0.6);
  outline-offset: 3px;
}

.container {
  width: min(1240px, 100% - 40px);
  margin-inline: auto;
}

.section-block {
  padding: 104px 0;
  position: relative;
}

.section-block.alt-bg {
  background: var(--bg1);
}

.section-block.glow-bg {
  background:
    radial-gradient(760px 320px at 16% 18%, rgba(139, 92, 246, 0.12), transparent 62%),
    radial-gradient(620px 280px at 92% 60%, rgba(34, 211, 238, 0.1), transparent 60%),
    var(--bg0);
}

/* header */
.site-header {
  position: fixed;
  z-index: 100;
  top: 14px;
  left: 0;
  right: 0;
  pointer-events: none;
}

.nav-pill {
  pointer-events: auto;
  max-width: 1180px;
  margin-inline: auto;
  padding: 0 22px 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  gap: 26px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(10, 15, 26, 0.72);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  backdrop-filter: blur(18px) saturate(160%);
  box-shadow: var(--shadow-lift);
  position: relative;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.nav-pill.is-shadowed {
  border-color: rgba(139, 92, 246, 0.28);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.36), 0 0 0 1px rgba(139, 92, 246, 0.04);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}

.brand-strong {
  font-size: 23px;
  font-weight: 800;
  letter-spacing: -0.3px;
  background: linear-gradient(100deg, #fff 10%, var(--brand-2) 48%, var(--electric) 90%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.brand-suffix {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-title);
  letter-spacing: 0.14em;
  padding-left: 8px;
  border-left: 1px solid var(--line-strong);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 0;
}

.site-nav a {
  position: relative;
  display: inline-block;
  padding: 8px 16px;
  font-size: 15px;
  color: var(--ink-body);
  font-weight: 500;
  transition: color 0.2s ease;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 15px;
  right: 15px;
  bottom: 2px;
  height: 3px;
  border-radius: 999px;
  background: transparent;
  transform: scaleX(0.4);
  opacity: 0;
  transition: all 0.2s ease;
}

.site-nav a:hover {
  color: #fff;
}

.site-nav a:hover::after {
  background: var(--electric);
  transform: scaleX(1);
  opacity: 1;
}

.site-nav a.active {
  color: #fff;
  font-weight: 700;
}

.site-nav a.active::after {
  background: var(--action);
  transform: scaleX(1);
  opacity: 1;
}

.nav-cta {
  margin-left: auto;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease, border-color 0.25s ease, color 0.25s ease;
  user-select: none;
  text-align: center;
  white-space: nowrap;
}

.btn-sm {
  height: 40px;
  padding: 0 22px;
  font-size: 14px;
}

.btn-md {
  height: 50px;
  padding: 0 30px;
  font-size: 15px;
}

.btn-lg {
  height: 56px;
  padding: 0 42px;
  font-size: 16px;
}

.btn-primary {
  color: #141102;
  font-weight: 800;
  background: linear-gradient(135deg, var(--action), var(--action-2));
  box-shadow: 0 8px 24px rgba(255, 122, 0, 0.24);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(255, 122, 0, 0.32);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--line-strong);
  color: var(--ink-title);
}

.btn-ghost:hover {
  border-color: var(--electric);
  color: var(--electric);
  box-shadow: 0 0 0 1px rgba(34, 211, 238, 0.18) inset, var(--shadow-lift);
  transform: translateY(-2px);
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.05);
  cursor: pointer;
  margin-left: auto;
  position: relative;
}

.nav-toggle span {
  position: absolute;
  width: 18px;
  height: 2px;
  background: var(--ink-title);
  transition: all 0.3s ease;
}

.nav-toggle span:nth-child(1) {
  transform: translateY(-6px);
}

.nav-toggle span:nth-child(2) {
  width: 12px;
  right: 8px;
}

.nav-toggle span:nth-child(3) {
  transform: translateY(6px);
}

.nav-toggle.is-open span:nth-child(1) {
  transform: rotate(45deg);
}

.nav-toggle.is-open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.is-open span:nth-child(3) {
  transform: rotate(-45deg);
}

.mobile-drawer {
  display: none;
  position: fixed;
  top: 86px;
  left: 14px;
  right: 14px;
  z-index: 99;
  padding: 16px;
  border-radius: 22px;
  border: 1px solid var(--line-strong);
  background: rgba(9, 14, 24, 0.94);
  -webkit-backdrop-filter: blur(24px) saturate(160%);
  backdrop-filter: blur(24px) saturate(160%);
  box-shadow: var(--shadow-card);
}

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

.mobile-drawer a {
  display: block;
  padding: 14px 18px;
  border-radius: 14px;
  font-size: 16px;
  color: var(--ink-body);
  font-weight: 500;
  border: 1px solid transparent;
}

.mobile-drawer a:hover {
  background: rgba(139, 92, 246, 0.12);
  color: #fff;
}

.mobile-drawer .drawer-cta {
  background: linear-gradient(135deg, var(--action), var(--action-2));
  color: #141102;
  font-weight: 800;
  text-align: center;
  margin-top: 8px;
  border-color: transparent;
}

/* hero */
.hero {
  position: relative;
  padding: 144px 0 96px;
  overflow: hidden;
  background:
    radial-gradient(900px 420px at 88% 2%, rgba(139, 92, 246, 0.26), transparent 62%),
    radial-gradient(720px 380px at 2% 24%, rgba(34, 211, 238, 0.14), transparent 55%),
    var(--bg0);
}

.hero-grid-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.5;
  background-image: linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px), linear-gradient(90deg, rgba(139, 92, 246, 0.08) 1px, transparent 1px);
  background-size: 54px 54px;
  -webkit-mask-image: radial-gradient(ellipse 100% 84% at 50% 30%, #000 12%, transparent 76%);
  mask-image: radial-gradient(ellipse 100% 84% at 50% 30%, #000 12%, transparent 76%);
}

.hero-bg-image {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  opacity: 0.16;
  pointer-events: none;
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: 60px;
  align-items: center;
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 13px;
  letter-spacing: 0.12em;
  font-weight: 700;
  color: var(--electric);
  border: 1px solid rgba(34, 211, 238, 0.22);
  background: rgba(34, 211, 238, 0.06);
  padding: 6px 14px;
  border-radius: 999px;
  text-transform: uppercase;
}

.kicker-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--electric);
  box-shadow: 0 0 0 0 rgba(34, 211, 238, 0.5);
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0% {
    box-shadow: 0 0 0 0 rgba(34, 211, 238, 0.45);
  }

  70% {
    box-shadow: 0 0 0 9px rgba(34, 211, 238, 0);
  }

  100% {
    box-shadow: 0 0 0 0 transparent;
  }
}

.hero h1 {
  font-size: clamp(34px, 4.8vw, 58px);
  line-height: 1.22;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--ink-title);
  margin: 22px 0 18px;
}

.h1-accent {
  background: linear-gradient(100deg, var(--brand-2), var(--electric) 76%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-lead {
  font-size: 17px;
  max-width: 560px;
  color: var(--ink-body);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 30px 0 24px;
}

.safe-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  font-size: 13px;
  color: var(--ink-mute);
}

.safe-tags li {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.safe-tags .tag-ok {
  width: 17px;
  height: 17px;
  border-radius: 50%;
  background: rgba(52, 211, 153, 0.14);
  color: var(--success);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 800;
}

.login-panel {
  position: relative;
  background: rgba(15, 23, 42, 0.6);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  border: 1px solid var(--line-strong);
  border-radius: 24px;
  padding: 32px;
  box-shadow: var(--shadow-card), var(--shadow-glow);
  overflow: hidden;
}

.login-panel::before {
  content: "";
  position: absolute;
  left: -20%;
  right: -20%;
  top: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--electric), var(--action), transparent);
  opacity: 0.8;
}

.panel-shine {
  position: absolute;
  right: -80px;
  top: -80px;
  width: 210px;
  height: 210px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.3), transparent 70%);
  pointer-events: none;
}

.panel-title {
  display: block;
  color: var(--ink-mute);
  font-size: 12px;
  letter-spacing: 0.15em;
  margin-bottom: 6px;
}

.login-panel h2 {
  color: var(--ink-title);
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -.2px;
}

.login-form {
  margin-top: 22px;
}

.field {
  display: block;
  margin-bottom: 16px;
}

.field-label {
  display: block;
  font-size: 13px;
  color: var(--ink-mute);
  margin-bottom: 7px;
}

.field-input {
  width: 100%;
  height: 48px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--line);
  border-radius: var(--radius-input);
  color: var(--ink-title);
  padding: 0 15px;
  font-size: 15px;
  transition: border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.field-input::-webkit-input-placeholder {
  color: #566276;
}

.field-input:-moz-placeholder {
  color: #566276;
}

.field-input:hover {
  border-color: rgba(255, 255, 255, 0.18);
}

.field-input:focus {
  border-color: rgba(34, 211, 238, 0.7);
  background: rgba(255, 255, 255, 0.07);
  box-shadow: 0 0 0 2px rgba(34, 211, 238, 0.2);
}

.pass-input-wrap {
  position: relative;
}

.pass-input-wrap .field-input {
  padding-right: 48px;
}

.pass-toggle {
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  width: 38px;
  height: 36px;
  border: 0;
  border-radius: 10px;
  background: transparent;
  font-size: 16px;
  cursor: pointer;
  color: var(--ink-mute);
  display: flex;
  align-items: center;
  justify-content: center;
}

.pass-toggle:hover {
  color: var(--electric);
  background: rgba(34, 211, 238, 0.08);
}

.slider-placeholder {
  height: 50px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px dashed rgba(255, 255, 255, 0.16);
  border-radius: var(--radius-input);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ink-mute);
  font-size: 13px;
  letter-spacing: 0.08em;
  margin: 0 0 16px;
  position: relative;
  overflow: hidden;
}

.slider-placeholder::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 92px;
  border-right: 1px solid rgba(255, 255, 255, 0.12);
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.3), rgba(34, 211, 238, 0.2));
}

.login-submit {
  width: 100%;
  color: #141102;
  background: linear-gradient(135deg, var(--action), var(--action-2));
  border-radius: 999px;
  height: 50px;
  border: 0;
  font-weight: 800;
  font-size: 16px;
  cursor: pointer;
  box-shadow: 0 10px 26px rgba(255, 122, 0, 0.22);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.login-submit:hover {
  box-shadow: 0 14px 30px rgba(255, 122, 0, 0.33);
  transform: translateY(-2px);
}

.login-submit:active {
  transform: translateY(0);
}

.login-foot {
  display: flex;
  justify-content: space-between;
  margin-top: 18px;
  font-size: 13px;
  flex-wrap: wrap;
  gap: 8px;
}

.login-foot a {
  color: var(--ink-mute);
  border-bottom: 1px solid transparent;
}

.login-foot a:hover {
  color: var(--electric);
  border-bottom-color: var(--electric);
}

/* section head */
.section-head {
  max-width: 760px;
  margin-bottom: 60px;
}

.section-head.centered {
  margin-inline: auto;
  text-align: center;
}

.section-head .kicker {
  margin-bottom: 14px;
}

.sec-title {
  color: var(--ink-title);
  font-size: clamp(27px, 3wv, 42px);
  font-size: clamp(28px, 3.2vw, 42px);
  line-height: 1.3;
  font-weight: 800;
  letter-spacing: -0.3px;
  margin-bottom: 16px;
}

.sec-desc {
  font-size: 16px;
  color: var(--ink-body);
  max-width: 720px;
}

.section-head.centered .sec-desc {
  margin-inline: auto;
}

/* features */
.feature-card {
  position: relative;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.03));
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  padding: 30px;
  overflow: hidden;
  transition: transform 0.28s ease, border-color 0.28s ease, box-shadow 0.28s ease;
}

.feature-card::before {
  content: "";
  position: absolute;
  left: 22px;
  right: 22px;
  top: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(139, 92, 246, 0.45), transparent);
  opacity: 0.4;
  transition: opacity 0.28s ease;
}

.feature-card:hover {
  transform: translateY(-5px);
  border-color: rgba(139, 92, 246, 0.35);
  box-shadow: var(--shadow-card);
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-index {
  position: absolute;
  right: 22px;
  top: 20px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.18);
}

.icon-box {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}

.icon-brand {
  background: rgba(139, 92, 246, 0.14);
  color: var(--brand-2);
}

.icon-cyan {
  background: rgba(34, 211, 238, 0.12);
  color: var(--electric);
}

.icon-orange {
  background: rgba(255, 122, 0, 0.13);
  color: var(--action-2);
}

.icon-box svg {
  width: 22px;
  height: 22px;
}

.feature-card h3 {
  color: var(--ink-title);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 15px;
  color: var(--ink-body);
}

.feature-top {
  display: grid;
  grid-template-columns: minmax(0, 2.1fr) minmax(0, 1fr);
  gap: 22px;
  margin-bottom: 22px;
}

.feature-bottom {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.endpoint-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.endpoint-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 13px;
  border-radius: 999px;
  font-size: 13px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.045);
  color: var(--ink-body);
}

.endpoint-chip i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--success);
  display: inline-block;
  box-shadow: 0 0 0 3px rgba(52, 211, 153, 0.1);
}

.endpoint-chip.muted i {
  background: var(--warning);
  box-shadow: 0 0 0 3px rgba(251, 191, 36, 0.08);
}

.tile-chain {
  margin-top: 22px;
  display: grid;
  gap: 10px;
}

.tile-chain-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--ink-body);
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 13px;
  padding: 10px 14px;
}

.tile-chain-item .no {
  color: var(--electric);
  font-weight: 700;
  font-size: 13px;
}

/* demo area */
.demo-layout {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: 64px;
  align-items: center;
}

.demo-text-feature {
  margin-top: 22px;
  display: grid;
  gap: 12px;
}

.demo-text-feature li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  color: var(--ink-body);
  font-size: 15px;
  line-height: 1.7;
}

.check-cyan {
  flex: 0 0 20px;
  height: 20px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(34, 211, 238, 0.12);
  color: var(--electric);
  font-size: 11px;
  margin-top: 3px;
  font-weight: 800;
}

.demo-media {
  position: relative;
}

.demo-stage {
  position: relative;
  border-radius: 26px;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow-card), 0 0 60px rgba(139, 92, 246, 0.16);
}

.demo-stage img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.demo-stage::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(11, 15, 26, 0.4));
  pointer-events: none;
}

.demo-float-label {
  position: absolute;
  left: 18px;
  bottom: 18px;
  z-index: 2;
  background: rgba(13, 18, 29, 0.7);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  color: #fff;
  font-size: 13px;
  padding: 8px 16px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.demo-float-label i {
  width: 7px;
  height: 7px;
  background: var(--success);
  border-radius: 50%;
}

.thumb-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 16px;
}

.thumb-card {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.032);
  border-radius: 16px;
  overflow: hidden;
  padding: 6px;
  transition: transform 0.24s ease, border-color 0.24s ease;
}

.thumb-card:hover {
  transform: translateY(-3px);
  border-color: rgba(34, 211, 238, 0.4);
}

.thumb-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 11px;
}

.thumb-card figcaption {
  padding: 9px 5px 6px;
  font-size: 13px;
  color: var(--ink-mute);
  text-align: center;
}

/* proof */
.proof-panel {
  position: relative;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.033), rgba(255, 255, 255, 0.014));
  border: 1px solid var(--line);
  border-radius: 30px;
  overflow: hidden;
  padding: 54px 40px 48px;
}

.proof-panel::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(139, 92, 246, 0.55), rgba(34, 211, 238, 0.45), transparent);
}

.stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 40px;
}

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

.stat-value {
  font-size: clamp(28px, 3vw, 42px);
  font-weight: 800;
  color: var(--ink-title);
  line-height: 1.2;
  letter-spacing: -0.4px;
  font-variant-numeric: tabular-nums;
}

.stat-value span {
  color: var(--electric);
}

.stat-label {
  font-size: 14px;
  color: var(--ink-mute);
  margin-top: 8px;
}

.review-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 20px;
  align-items: start;
}

.review-card {
  grid-column: span 4;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line);
  border-top: 3px solid rgba(139, 92, 246, 0.7);
  border-radius: 20px;
  padding: 24px 22px;
  box-shadow: var(--shadow-lift);
}

.review-card:nth-child(1) {
  transform: translateY(0);
}

.review-card:nth-child(2) {
  transform: translateY(18px);
}

.review-card:nth-child(3) {
  transform: translateY(48px);
}

.review-stars {
  color: #FFB347;
  letter-spacing: 2px;
  font-size: 15px;
}

.review-text {
  color: var(--ink-body);
  font-size: 15px;
  line-height: 1.8;
  margin-top: 10px;
}

.review-user {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 18px;
}

.review-avatar {
  width: 38px;
  height: 38px;
  background: conic-gradient(from 200deg, #8B5CF6, #22D3EE, #C4B5FD, #8B5CF6);
  border-radius: 50%;
  padding: 1.5px;
  flex: 0 0 38px;
}

.review-avatar span {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #151c2c;
  border-radius: inherit;
  color: var(--ink-title);
  font-size: 13px;
  font-weight: 700;
}

.review-name {
  color: var(--ink-title);
  font-size: 14px;
  font-weight: 600;
}

.review-role {
  color: var(--ink-mute);
  font-size: 12px;
  margin-top: 2px;
}

/* pricing */
.price-layout {
  display: grid;
  gap: 20px;
  max-width: 980px;
  margin-inline: auto;
}

.price-featured-wrap {
  display: flex;
  justify-content: center;
}

.price-card {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.02));
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  padding: 30px 32px;
  position: relative;
  overflow: hidden;
  transition: transform 0.26s ease, border-color 0.26s ease, box-shadow 0.26s ease;
}

.price-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-card);
}

.price-featured {
  flex: 0 1 620px;
  border: 1px solid rgba(255, 122, 0, 0.48);
  background:
    radial-gradient(430px 170px at 90% -50px, rgba(139, 92, 246, 0.18), transparent 75%),
    rgba(255, 255, 255, 0.05);
  box-shadow: var(--shadow-card), 0 0 80px rgba(255, 122, 0, 0.08);
}

.price-featured::before {
  content: "热门";
  position: absolute;
  right: 24px;
  top: 20px;
  background: linear-gradient(135deg, var(--action), var(--action-2));
  color: #141102;
  font-size: 12px;
  font-weight: 800;
  padding: 5px 14px;
  border-radius: 999px;
  letter-spacing: 0.04em;
}

.price-title {
  color: var(--ink-title);
  font-size: 21px;
  font-weight: 700;
}

.price-hero-name {
  font-size: 28px;
}

.price-descrip {
  color: var(--ink-mute);
  font-size: 14px;
  margin-top: 6px;
}

.price-amount {
  margin-top: 20px;
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.price-num {
  color: var(--ink-title);
  font-size: 40px;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.price-unit {
  color: var(--ink-mute);
  font-size: 14px;
}

.price-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 9px 18px;
  margin: 22px 0;
}

.price-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--ink-body);
}

.price-list .tick {
  color: var(--success);
  font-weight: 700;
  flex: 0 0 16px;
}

.price-extra-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.price-extra {
  padding: 24px 28px;
  display: flex;
  gap: 8px 0;
  flex-direction: column;
}

.price-extra .price-num {
  font-size: 30px;
}

/* FAQ */
.faq-layout {
  max-width: 860px;
  margin: 0 auto;
}

.faq-item {
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid var(--line);
  border-radius: 17px;
  overflow: hidden;
  margin-bottom: 12px;
  transition: border-color 0.22s ease, background 0.22s ease;
}

.faq-item.open {
  background: rgba(139, 92, 246, 0.06);
  border-color: rgba(139, 92, 246, 0.28);
}

.faq-question button {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 22px;
  background: transparent;
  border: 0;
  font-family: inherit;
  font-size: 16px;
  color: var(--ink-title);
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  border-radius: 17px;
  transition: background 0.22s ease;
}

.faq-question button:hover {
  background: rgba(139, 92, 246, 0.1);
}

.faq-icon {
  position: relative;
  flex: 0 0 32px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.05);
}

.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--ink-body);
  transform: translate(-50%, -50%);
  transition: transform 0.3s ease, background 0.3s ease;
}

.faq-icon::before {
  width: 12px;
  height: 1.5px;
}

.faq-icon::after {
  width: 1.5px;
  height: 12px;
}

.faq-item.open .faq-icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.faq-item.open .faq-icon::before,
.faq-item.open .faq-icon::after {
  background: var(--action-2);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.34s ease;
}

.faq-item.open .faq-answer {
  max-height: 500px;
}

.faq-answer-inner {
  padding: 0 22px 20px;
  color: var(--ink-body);
  font-size: 15px;
  line-height: 1.9;
}

.faq-answer-inner a {
  color: var(--electric);
  border-bottom: 1px solid transparent;
}

.faq-answer-inner a:hover {
  border-bottom-color: var(--electric);
}

/* news / CMS area */
.news-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 24px;
  align-items: start;
}

.news-primary-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 19px;
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.news-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.02));
  border-radius: 19px;
  padding: 22px 22px 20px;
  transition: transform 0.24s ease, border-color 0.24s ease, box-shadow 0.24s ease;
}

.news-card:hover {
  transform: translateY(-4px);
  border-color: rgba(34, 211, 238, 0.32);
  box-shadow: var(--shadow-card);
}

.news-card-top {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
  margin-bottom: 12px;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 11px;
  border-radius: 999px;
  border: 1px solid rgba(139, 92, 246, 0.28);
  background: rgba(139, 92, 246, 0.1);
  color: var(--brand-2);
  font-size: 12px;
  font-weight: 600;
}

.badge-cyan {
  border-color: rgba(34, 211, 238, 0.28);
  background: rgba(34, 211, 238, 0.1);
  color: var(--electric);
}

.news-time {
  color: var(--ink-mute);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
}

.news-card h3 {
  color: var(--ink-title);
  font-size: 17px;
  line-height: 1.5;
  font-weight: 700;
  margin-bottom: 10px;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.news-card p {
  font-size: 14px;
  color: var(--ink-mute);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 14px;
}

.news-more a {
  color: var(--electric);
  font-size: 13px;
  margin-top: auto;
}

.news-more a::after {
  content: " →";
  display: inline-block;
  margin-left: 2px;
  transition: transform 0.2s ease;
}

.news-more a:hover::after {
  transform: translateX(4px);
}

.news-empty {
  grid-column: 1 / -1;
  min-height: 190px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px dashed var(--line-strong);
  border-radius: 19px;
  background: rgba(255, 255, 255, 0.02);
  color: var(--ink-mute);
  font-size: 15px;
}

.news-aside {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.025));
  border: 1px solid var(--line);
  border-radius: 21px;
  padding: 24px;
  display: grid;
  gap: 14px;
  position: sticky;
  top: 100px;
}

.aside-label {
  font-size: 12px;
  letter-spacing: 0.13em;
  color: var(--ink-mute);
  font-weight: 700;
}

.aside-title {
  color: var(--ink-title);
  font-size: 21px;
  line-height: 1.4;
  font-weight: 800;
}

.aside-text {
  color: var(--ink-mute);
  font-size: 14px;
  line-height: 1.8;
}

.aside-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--electric);
  font-size: 14px;
  font-weight: 600;
}

.aside-link::after {
  content: "";
  width: 14px;
  height: 14px;
  border-top: 1.5px solid var(--electric);
  border-right: 1.5px solid var(--electric);
  transform: rotate(45deg);
  transition: transform 0.2s ease;
}

.aside-link:hover::after {
  transform: rotate(45deg) translateX(3px);
}

.view-all {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-mute);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 18px;
}

.view-all:hover {
  color: var(--electric);
  border-color: rgba(34, 211, 238, 0.3);
}

/* cta banner */
.cta-banner {
  background:
    radial-gradient(700px 260px at 80% 0%, rgba(139, 92, 246, 0.24), transparent 70%),
    radial-gradient(600px 240px at 2% 100%, rgba(255, 122, 0, 0.15), transparent 60%),
    var(--bg1);
  border: 1px solid var(--line);
  border-radius: 30px;
  padding: 68px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-banner h2 {
  color: var(--ink-title);
  font-size: clamp(24px, 3vw, 38px);
  line-height: 1.35;
  font-weight: 800;
  letter-spacing: -0.3px;
  max-width: 700px;
  margin: 0 auto 14px;
}

.cta-banner p {
  color: var(--ink-mute);
  font-size: 16px;
  max-width: 620px;
  margin: 0 auto 28px;
}

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

/* floating cta */
.float-cta {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 80;
  height: 48px;
  padding: 0 21px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 800;
  color: #141102;
  background: linear-gradient(135deg, var(--action), var(--action-2));
  border-radius: 999px;
  box-shadow: 0 14px 32px rgba(255, 122, 0, 0.28);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.float-cta:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 38px rgba(255, 122, 0, 0.38);
}

.float-cta::before {
  content: "";
  width: 8px;
  height: 8px;
  background: #06121b;
  border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.6);
  animation: pulse-live 2.2s infinite;
}

@keyframes pulse-live {
  0% {
    box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.45);
  }

  70% {
    box-shadow: 0 0 0 9px rgba(255, 255, 255, 0);
  }

  100% {
    box-shadow: 0 0 0 0 rgba(255, 255, 255, 0);
  }
}

/* footer */
.site-footer {
  background: #0a0e17;
  border-top: 1px solid rgba(255, 255, 255, 0.07);
  padding: 76px 0 0;
  position: relative;
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(139, 92, 246, 0.35), rgba(34, 211, 238, 0.18), transparent);
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr) minmax(0, 1fr);
  gap: 48px;
  padding-bottom: 48px;
}

.footer-brand-title {
  color: var(--ink-title);
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.2px;
}

.footer-brand-title span {
  background: linear-gradient(100deg, var(--brand-2), var(--electric));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.footer-about {
  color: var(--ink-mute);
  font-size: 14px;
  margin-top: 12px;
  line-height: 1.9;
  max-width: 360px;
}

.footer-secure {
  margin-top: 18px;
  padding: 10px 14px;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 13px;
  color: var(--ink-body);
  background: rgba(52, 211, 153, 0.06);
  border: 1px solid rgba(52, 211, 153, 0.14);
  border-radius: 999px;
}

.footer-secure span {
  color: var(--success);
}

.footer-col-title {
  color: var(--ink-title);
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 15px;
}

.footer-col a,
.footer-col li {
  display: block;
  color: var(--ink-mute);
  font-size: 14px;
  margin-bottom: 9px;
}

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

.footer-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 18px 0 26px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  color: var(--ink-mute);
  font-size: 13px;
  flex-wrap: wrap;
}

.footer-meta a {
  color: var(--ink-body);
}

.footer-meta a:hover {
  color: var(--electric);
}

/* reveal animation */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1200px) {
  .hero-grid {
    gap: 36px;
  }

  .feature-top {
    grid-template-columns: 1.6fr 1fr;
  }

  .review-card:nth-child(2) {
    transform: translateY(8px);
  }

  .review-card:nth-child(3) {
    transform: translateY(18px);
  }
}

@media (max-width: 992px) {
  .feature-bottom {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .login-panel {
    max-width: 570px;
  }

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

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

  .review-card:nth-child(3) {
    grid-column: 1 / -1;
    transform: none;
  }

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

  .news-aside {
    position: static;
  }

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

@media (max-width: 900px) {
  .nav-pill {
    gap: 12px;
    padding-left: 19px;
    padding-right: 14px;
  }

  .site-nav {
    display: none;
  }

  .nav-cta {
    display: none;
  }

  .brand-suffix {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
    margin-left: auto;
  }
}

@media (max-width: 768px) {
  .section-block {
    padding: 72px 0;
  }

  .hero {
    padding: 116px 0 72px;
  }

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

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

  .stats-row {
    grid-template-columns: 1fr;
    gap: 24px;
  }

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

  .review-card {
    grid-column: auto;
  }

  .price-extra-grid {
    grid-template-columns: 1fr;
  }

  .price-featured {
    width: 100%;
  }

  .cta-banner {
    padding: 52px 26px;
  }

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

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

  .footer-meta {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 520px) {
  .container {
    width: calc(100% - 32px);
  }

  .section-block {
    padding: 58px 0;
  }

  .hero h1 {
    font-size: 31px;
    line-height: 1.28;
  }

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

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

  .login-panel {
    padding: 24px 18px;
  }

  .login-panel h2 {
    font-size: 20px;
  }

  .feature-card {
    padding: 24px 20px;
  }

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

  .float-cta {
    right: 14px;
    bottom: 14px;
    height: 44px;
    padding: 0 17px;
    font-size: 13px;
  }

  .review-card {
    transform: none !important;
  }

  .cta-banner {
    padding: 44px 20px;
  }
}

/* roulang page: article */
:root {
  --bg0: #0B0F1A;
  --bg1: #111927;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-2: rgba(255, 255, 255, 0.07);
  --line: rgba(255, 255, 255, 0.09);
  --line-strong: rgba(255, 255, 255, 0.14);
  --brand: #8B5CF6;
  --brand-2: #C4B5FD;
  --electric: #22D3EE;
  --action: #FF7A00;
  --action-2: #FFB347;
  --ink-title: #F5F7FC;
  --ink-body: #BCC5D4;
  --ink-mute: #7C8BA1;
  --success: #34D399;
  --warning: #FBBF24;
  --danger: #F87171;
  --radius-card: 20px;
  --radius-btn: 999px;
  --radius-input: 14px;
  --shadow-card: 0 16px 40px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 40px rgba(139, 92, 246, 0.24);
  --container: 1240px;
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 100px;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.8;
  background: var(--bg0);
  color: var(--ink-body);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

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

a:hover {
  color: var(--brand-2);
}

ul, ol {
  padding-left: 1.4rem;
}

button {
  font-family: inherit;
  cursor: pointer;
}

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

/* ============ 导航 ============ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  display: flex;
  justify-content: center;
  padding: 12px 20px 0;
  pointer-events: none;
}

.nav-pill {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: 100%;
  max-width: 1180px;
  height: 62px;
  padding: 0 12px 0 22px;
  background: rgba(10, 15, 26, 0.78);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  border: 1px solid var(--line);
  border-radius: 999px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
  pointer-events: auto;
  transition: border-color 0.3s ease;
}

.nav-pill:hover {
  border-color: rgba(139, 92, 246, 0.28);
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 6px;
  flex-shrink: 0;
  outline: none;
}

.brand-strong {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 0.3px;
  color: var(--ink-title);
  background: linear-gradient(120deg, #a78bfa, #22D3EE, #c4b5fd);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-suffix {
  font-size: 14px;
  font-weight: 500;
  color: var(--ink-mute);
  letter-spacing: 2px;
}

.site-nav ul {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0;
}

.site-nav a {
  padding: 9px 15px;
  border-radius: 999px;
  font-size: 14.5px;
  color: #a6b0c3;
  font-weight: 500;
  white-space: nowrap;
  border: 1px solid transparent;
  transition: all 0.25s ease;
  position: relative;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 4px;
  height: 3px;
  border-radius: 2px;
  background: var(--action);
  opacity: 0;
  transform: scaleX(0.3);
  transition: all 0.25s ease;
}

.site-nav a:hover {
  color: #edf2fa;
  background: rgba(255, 255, 255, 0.04);
}

.site-nav a:hover::after {
  opacity: 1;
  transform: scaleX(1);
}

.site-nav a.active {
  color: #ffffff;
  background: rgba(139, 92, 246, 0.14);
  border-color: rgba(139, 92, 246, 0.25);
}

.site-nav a.active::after {
  opacity: 1;
  transform: scaleX(1);
  background: var(--action);
}

.nav-cta {
  flex-shrink: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  text-align: center;
  border-radius: var(--radius-btn);
  transition: all 0.25s ease;
  border: none;
  cursor: pointer;
  font-size: 15px;
  line-height: 1;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(90deg, #f97316, #fb923c);
  color: #fff;
  box-shadow: 0 4px 16px rgba(255, 122, 0, 0.25);
}

.btn-primary:hover {
  background: linear-gradient(90deg, #ff7a00, #fbbf24);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(255, 122, 0, 0.34);
}

.btn-primary:active {
  transform: scale(0.98);
}

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-sm {
  height: 40px;
  padding: 0 20px;
  font-size: 14px;
}

.btn-outline {
  background: rgba(255, 255, 255, 0.04);
  color: var(--ink-title);
  border: 1px solid var(--line-strong);
}

.btn-outline:hover {
  border-color: var(--electric);
  color: #fff;
  background: rgba(34, 211, 238, 0.06);
  transform: translateY(-1px);
}

/* 汉堡按钮 */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--line);
  border-radius: 50%;
  padding: 0 11px;
  transition: all 0.25s ease;
}

.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--ink-title);
  border-radius: 2px;
  transition: all 0.25s ease;
}

.nav-toggle:hover {
  background: rgba(255, 255, 255, 0.1);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* 移动抽屉面板 */
.m-nav-drawer {
  position: fixed;
  top: 80px;
  left: 20px;
  right: 20px;
  z-index: 999;
  background: rgba(11, 15, 26, 0.94);
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 24px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6);
  display: none;
  opacity: 0;
  transform: translateY(-14px);
  transition: all 0.3s ease;
}

.m-nav-drawer.open {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

.m-nav-drawer li {
  list-style: none;
}

.m-nav-drawer ul {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.m-nav-drawer a {
  display: block;
  padding: 13px 16px;
  font-size: 15px;
  color: var(--ink-body);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid transparent;
  border-radius: 14px;
  transition: all 0.25s ease;
}

.m-nav-drawer a:hover {
  background: rgba(139, 92, 246, 0.1);
  border-color: rgba(139, 92, 246, 0.2);
  color: #fff;
}

.m-nav-drawer a.active {
  background: rgba(139, 92, 246, 0.16);
  color: #ffffff;
  border-color: rgba(139, 92, 246, 0.2);
}

/* ============ Article Page ============ */
.article-hero {
  position: relative;
  background: var(--bg0);
  padding: 160px 0 60px;
  overflow: hidden;
}

.article-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 600px 280px at 90% 10%, rgba(139, 92, 246, 0.14), transparent 65%),
    radial-gradient(ellipse 500px 220px at 5% 80%, rgba(34, 211, 238, 0.1), transparent 60%),
    linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
  background-size: auto, auto, 80px 80px, 80px 80px;
  pointer-events: none;
}

.article-hero .container {
  position: relative;
  z-index: 1;
}

.breadcrumb-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--ink-mute);
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.breadcrumb-nav a {
  color: var(--ink-mute);
  transition: color 0.2s;
}

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

.breadcrumb-nav .sep {
  color: rgba(255, 255, 255, 0.25);
}

.breadcrumb-nav .current {
  color: var(--ink-mute);
  opacity: 0.8;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 260px;
}

.article-title {
  font-size: clamp(28px, 4.4vw, 44px);
  font-weight: 800;
  line-height: 1.25;
  color: var(--ink-title);
  letter-spacing: -0.2px;
  max-width: 860px;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  margin-top: 20px;
  font-size: 13.5px;
  color: var(--ink-mute);
}

.article-meta .meta-divider {
  width: 1px;
  height: 14px;
  background: rgba(255, 255, 255, 0.15);
}

.article-cat-badge {
  padding: 4px 14px;
  background: rgba(139, 92, 246, 0.14);
  border: 1px solid rgba(139, 92, 246, 0.25);
  color: var(--brand-2);
  border-radius: 999px;
  font-weight: 500;
  font-size: 13px;
}

/* ============ Main ============ */
.article-main {
  padding: 20px 0 80px;
  background: var(--bg0);
}

.article-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
}

.article-content-wrap {
  max-width: 860px;
}

.article-body {
  font-size: 16px;
  line-height: 1.9;
  color: var(--ink-body);
}

.article-body > * {
  margin-bottom: 1.6em;
}

.article-body p {
  margin-bottom: 1.6em;
}

.article-body h2 {
  font-size: 26px;
  font-weight: 800;
  color: var(--ink-title);
  margin-top: 1.8em;
  margin-bottom: 0.9em;
  letter-spacing: -0.2px;
  line-height: 1.4;
}

.article-body h3 {
  font-size: 21px;
  font-weight: 700;
  color: var(--ink-title);
  margin-top: 1.5em;
  margin-bottom: 0.8em;
  line-height: 1.45;
}

.article-body ul,
.article-body ol {
  margin-bottom: 1.6em;
  padding-left: 1.5rem;
}

.article-body ul {
  list-style-type: disc;
}

.article-body ol {
  list-style-type: decimal;
}

.article-body li {
  margin-bottom: 0.5em;
  line-height: 1.8;
}

.article-body li::marker {
  color: var(--brand);
}

.article-body blockquote {
  margin: 1.8em 0;
  padding: 16px 22px;
  background: rgba(139, 92, 246, 0.06);
  border-left: 3px solid var(--brand);
  border-radius: 0 14px 14px 0;
  color: var(--ink-body);
}

.article-body blockquote p {
  margin: 0;
}

.article-body a {
  color: var(--electric);
  text-decoration: underline;
  text-decoration-color: rgba(34, 211, 238, 0.3);
  text-underline-offset: 4px;
  transition: all 0.25s ease;
}

.article-body a:hover {
  color: var(--brand-2);
  text-decoration-color: rgba(139, 92, 246, 0.7);
}

.article-body table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--line);
  margin-bottom: 1.8em;
}

.article-body table th {
  background: rgba(139, 92, 246, 0.1);
  color: var(--ink-title);
  font-weight: 600;
  text-align: left;
  font-size: 14.5px;
}

.article-body table th,
.article-body table td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
  border-right: 1px solid var(--line);
}

.article-body table tr:last-child td {
  border-bottom: none;
}

.article-body table th:last-child,
.article-body table td:last-child {
  border-right: none;
}

.article-body table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

.article-body img {
  border-radius: 18px;
  border: 1px solid var(--line);
  margin: 1.5em 0;
}

.article-body code {
  background: rgba(34, 211, 238, 0.1);
  color: #9fe3ef;
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 0.92em;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

/* 封面图区域 */
.article-cover {
  margin-bottom: 36px;
  border-radius: var(--radius-card);
  overflow: hidden;
  border: 1px solid var(--line);
  position: relative;
}

.article-cover img {
  width: 100%;
  height: auto;
  max-height: 480px;
  object-fit: cover;
}

/* 正文下方按钮 */
.article-bottom-nav {
  display: flex;
  justify-content: flex-start;
  gap: 14px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--line);
}

.article-bottom-nav a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-a {
  height: 44px;
  padding: 0 22px;
}

/* ============ 无文状态 ============ */
.not-found-panel {
  text-align: center;
  padding: 100px 20px;
  max-width: 560px;
  margin: 0 auto;
}

.not-found-panel .nf-icon {
  font-size: 52px;
  margin-bottom: 20px;
  opacity: 0.5;
}

.not-found-panel h2 {
  font-size: 30px;
  font-weight: 800;
  color: var(--ink-title);
  margin-bottom: 12px;
}

.not-found-panel p {
  color: var(--ink-mute);
  font-size: 16px;
  margin-bottom: 30px;
}

.empty-border {
  border: 2px dashed rgba(255, 255, 255, 0.14);
  border-radius: 24px;
}

/* ============ Footer ============ */
.site-footer {
  position: relative;
  background: #0a0e17;
  padding-top: 70px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(139, 92, 246, 0.3), rgba(34, 211, 238, 0.3), transparent);
  pointer-events: none;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 50px;
  padding-bottom: 46px;
}

.footer-brand-title {
  font-size: 22px;
  font-weight: 800;
  color: var(--ink-title);
  margin-bottom: 14px;
}

.footer-brand-title span {
  color: var(--electric);
}

.footer-about {
  font-size: 14px;
  color: var(--ink-mute);
  line-height: 1.9;
  max-width: 360px;
}

.footer-secure {
  margin-top: 18px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12.5px;
  color: var(--ink-mute);
  background: rgba(34, 211, 238, 0.07);
  border: 1px solid rgba(34, 211, 238, 0.16);
  padding: 7px 15px;
  border-radius: 999px;
}

.footer-col-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--ink-title);
  margin-bottom: 14px;
}

.footer-col ul {
  list-style: none;
  padding: 0;
}

.footer-col ul li {
  margin-bottom: 9px;
}

.footer-col a {
  font-size: 14px;
  color: var(--ink-body);
  transition: color 0.2s ease;
}

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

.footer-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  padding: 20px 0;
  border-top: 1px solid var(--line);
  font-size: 13px;
  color: var(--ink-mute);
}

/* 浮动 CTA */
.float-cta {
  position: fixed;
  right: 24px;
  bottom: 30px;
  z-index: 900;
}

.float-cta a {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  height: 48px;
  padding: 0 50px 0 24px;
  color: #ffffff;
  font-size: 15px;
  font-weight: 600;
  background: linear-gradient(90deg, #f97316, #f95f1a);
  border-radius: 999px;
  box-shadow: 0 8px 30px rgba(255, 122, 0, 0.4);
  transition: all 0.3s ease;
  letter-spacing: 0.3px;
}

.float-cta a:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 38px rgba(255, 122, 0, 0.48);
  color: #ffffff;
  background: linear-gradient(90deg, #ff7a00, #f97316);
}

.float-cta a:active {
  transform: translateY(-1px) scale(0.97);
}

.float-cta a i {
  position: absolute;
  right: 20px;
  font-style: normal;
  font-size: 17px;
  line-height: 1;
}

.float-cta a::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--success);
  border-radius: 50%;
  position: absolute;
  left: 17px;
  box-shadow: 0 0 10px rgba(34, 211, 238, 0.6);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.3; transform: scale(1.5); }
}

/* 选中文本 */
::selection {
  background: rgba(139, 92, 246, 0.4);
  color: #fff;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 9px;
}

::-webkit-scrollbar-track {
  background: var(--bg0);
}

::-webkit-scrollbar-thumb {
  background: #232e3f;
  border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--brand);
}

/* focus a11y */
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--electric);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ============ Responsive ============ */
@media screen and (max-width: 1200px) {
  .nav-pill {
    max-width: calc(100% - 0px);
  }
}

@media screen and (max-width: 992px) {
  .site-nav {
    display: none;
  }

  .nav-pill .nav-cta {
    margin-left: auto;
  }

  .nav-toggle {
    display: flex;
  }

  .m-nav-drawer {
    display: block;
    visibility: hidden;
    opacity: 0;
  }

  .m-nav-drawer.open {
    visibility: visible;
    opacity: 1;
  }

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

  .float-cta {
    right: 16px;
    bottom: 20px;
  }
}

@media screen and (max-width: 767px) {
  .article-hero {
    padding: 130px 0 40px;
  }

  .article-title {
    font-size: 26px;
    line-height: 1.35;
  }

  .article-meta {
    gap: 12px;
    font-size: 12.5px;
  }

  .breadcrumb-nav .current {
    max-width: 100%;
  }

  .article-main {
    padding-bottom: 50px;
  }

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

  .container {
    padding: 0 20px;
  }

  .float-cta a {
    height: 44px;
    padding-right: 42px;
  }

  .nav-pill {
    height: 56px;
    padding-left: 16px;
  }

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

  .brand-suffix {
    font-size: 12px;
  }

  .nav-pill .nav-cta {
    display: none;
  }

  .float-cta a i {
    display: none;
  }
}

@media screen and (max-width: 520px) {
  .float-cta {
    right: 12px;
    bottom: 16px;
  }

  .float-cta a {
    width: 44px;
    height: 44px;
    padding: 0;
    font-size: 0;
    border-radius: 50%;
  }

  .float-cta a i {
    display: inline-flex;
    position: static;
    font-size: 19px;
  }

  .float-cta a::before {
    left: auto;
    right: 4px;
  }
}

/* roulang page: category1 */
:root{
  --bg0:#0B0F1A;
  --bg1:#111927;
  --surface:rgba(255,255,255,0.04);
  --surface-2:rgba(255,255,255,0.07);
  --line:rgba(255,255,255,0.09);
  --line-strong:rgba(255,255,255,0.14);
  --brand:#8B5CF6;
  --brand-2:#C4B5FD;
  --electric:#22D3EE;
  --action:#FF7A00;
  --action-2:#FFB347;
  --ink-title:#F5F7FC;
  --ink-body:#BCC5D4;
  --ink-mute:#7C8BA1;
  --success:#34D399;
  --warning:#FBBF24;
  --danger:#F87171;
  --radius-card:22px;
  --radius-md:14px;
  --shadow-card:0 16px 40px rgba(0,0,0,0.3);
  --shadow-lite:0 2px 12px rgba(0,0,0,0.24);
  --glow-brand:0 0 40px rgba(139,92,246,0.22);
  --max-width:1240px;
  --font-base:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg0);
  color:var(--ink-body);
  font-family:var(--font-base);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background:
    radial-gradient(600px 320px at 12% -4%, rgba(139,92,246,0.16), transparent 60%),
    radial-gradient(560px 320px at 88% 4%, rgba(34,211,238,0.08), transparent 60%),
    radial-gradient(700px 420px at 50% 116%, rgba(255,122,0,0.05), transparent 60%);
  z-index:-2;
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(ellipse at center, rgba(0,0,0,0.5), transparent 80%);
          mask-image:radial-gradient(ellipse at center, rgba(0,0,0,0.5), transparent 80%);
  z-index:-1;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .22s ease,border-color .22s ease,opacity .22s ease}
button{font-family:inherit;cursor:pointer}
ul,ol{list-style:none}
::selection{background:rgba(139,92,246,0.42);color:#fff}
:focus-visible{outline:2px solid rgba(34,211,238,0.6);outline-offset:3px;border-radius:6px}
.container{width:min(var(--max-width),100% - 40px);margin-inline:auto}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:999px;
  padding:0 22px;
  height:48px;
  font-size:15px;
  font-weight:600;
  line-height:1;
  border:1px solid transparent;
  transition:transform .25s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,color .25s ease;
  white-space:nowrap;
}
.btn:active{transform:translateY(1px) scale(0.99)}
.btn-primary{
  background:linear-gradient(135deg,var(--action),#FF9F2E);
  color:#1A0F04;
  box-shadow:0 10px 24px rgba(255,122,0,0.24);
}
.btn-primary:hover{
  background:linear-gradient(135deg,#FF8A1A,#FFB347);
  transform:translateY(-2px);
  box-shadow:0 14px 30px rgba(255,122,0,0.35);
  color:#160B02;
}
.btn-primary:active{box-shadow:0 6px 16px rgba(255,122,0,0.28)}
.btn-ghost{
  background:rgba(255,255,255,0.06);
  border-color:rgba(255,255,255,0.16);
  color:var(--ink-title);
  backdrop-filter:blur(8px);
}
.btn-ghost:hover{border-color:rgba(34,211,238,0.55);color:#D3EDFF;background:rgba(34,211,238,0.08)}
.btn-ghost:disabled{opacity:.5;cursor:not-allowed;transform:none}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.site-header{
  position:fixed;
  top:0;
  left:0;
  right:0;
  z-index:1000;
  padding-top:14px;
  pointer-events:none;
}
.site-header > *{pointer-events:auto}
.nav-pill{
  position:fixed;
  top:14px;
  left:50%;
  transform:translateX(-50%);
  z-index:1000;
  width:min(calc(100% - 32px),1280px);
  display:flex;
  align-items:center;
  gap:14px;
  height:64px;
  border-radius:999px;
  padding:0 12px 0 20px;
  background:rgba(10,15,26,0.72);
  -webkit-backdrop-filter:blur(20px) saturate(160%);
          backdrop-filter:blur(20px) saturate(160%);
  border:1px solid rgba(255,255,255,0.1);
  box-shadow:0 12px 32px rgba(0,0,0,0.36);
}
.brand{
  display:inline-flex;
  align-items:baseline;
  gap:4px;
  font-weight:800;
  flex-shrink:0;
}
.brand-strong{
  font-size:23px;
  letter-spacing:.5px;
  background:linear-gradient(100deg,#EBE3FF 0%,#A78BFA 52%,#22D3EE 120%);
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
}
.brand-suffix{font-size:15px;font-weight:600;color:rgba(255,255,255,0.68);letter-spacing:.08em}
.site-nav{margin-left:auto}
.site-nav ul{display:flex;align-items:center;gap:2px}
.site-nav a{
  position:relative;
  display:block;
  padding:10px 16px;
  font-size:15px;
  color:rgba(255,255,255,0.7);
  border-radius:999px;
}
.site-nav a::after{
  content:"";
  position:absolute;
  left:18px;
  right:18px;
  bottom:4px;
  height:3px;
  border-radius:4px;
  background:transparent;
  transition:background .24s ease;
}
.site-nav a:hover{color:#fff;background:rgba(255,255,255,0.05)}
.site-nav a:hover::after{background:rgba(34,211,238,0.8)}
.site-nav a.active{color:#fff}
.site-nav a.active::after{background:var(--action)}
.nav-cta{flex-shrink:0}
.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  border-radius:50%;
  border:1px solid var(--line);
  background:rgba(255,255,255,0.06);
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  margin-left:auto;
}
.nav-toggle span{
  display:block;
  width:18px;
  height:2px;
  border-radius:2px;
  background:#fff;
  transition:transform .25s ease,opacity .25s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.site-header-spacer{height:92px}
.page-hero{
  position:relative;
  padding:56px 0 66px;
  background:
    radial-gradient(760px 420px at 78% 30%, rgba(34,211,238,0.14), transparent 62%),
    radial-gradient(900px 520px at 8% 10%, rgba(139,92,246,0.24), transparent 58%),
    linear-gradient(180deg,rgba(11,15,26,0.78),rgba(17,25,39,0.95)),
    url("/assets/images/backpic/back-1.png") no-repeat center top/cover;
  border-bottom:1px solid rgba(255,255,255,0.06);
}
.page-hero::before{
  content:"";
  position:absolute;
  left:8%;
  bottom:30px;
  width:420px;
  height:200px;
  background:radial-gradient(ellipse,rgba(139,92,246,0.18),transparent 68%);
  filter:blur(16px);
  z-index:0;
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2}
.breadcrumb-nav{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--ink-mute);
  margin-bottom:22px;
  flex-wrap:wrap;
}
.breadcrumb-nav a{color:var(--ink-mute)}
.breadcrumb-nav a:hover{color:var(--electric)}
.breadcrumb-nav svg{width:14px;height:14px;opacity:.6}
.breadcrumb-nav span{color:#D3DCEA;font-weight:500}
.page-hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) 354px;
  gap:70px;
  align-items:center;
}
.tag-pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:30px;
  padding:0 14px;
  border-radius:999px;
  background:rgba(139,92,246,0.14);
  border:1px solid rgba(139,92,246,0.28);
  color:var(--brand-2);
  font-size:13px;
  font-weight:600;
  letter-spacing:.06em;
  margin-bottom:18px;
}
.tag-pill::before{
  content:"";
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--success);
  box-shadow:0 0 12px rgba(52,211,153,0.8);
}
.hero-h1{
  font-size:clamp(36px,4.6vw,58px);
  line-height:1.18;
  color:var(--ink-title);
  font-weight:800;
  letter-spacing:-.5px;
  margin-bottom:18px;
}
.hero-h1 em{
  font-style:normal;
  display:inline-block;
  background:linear-gradient(92deg,#D6C1FF,#7EFFE0);
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
}
.hero-desc{
  color:var(--ink-body);
  font-size:17px;
  line-height:1.9;
  max-width:720px;
  margin-bottom:28px;
}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  gap:20px;
  margin-top:28px;
  font-size:13px;
  color:var(--ink-mute);
}
.hero-meta li{display:flex;align-items:center;gap:7px}
.hero-meta li::before{
  content:"";
  width:5px;height:5px;transform:rotate(45deg);
  background:var(--electric);
  border-radius:1px;
}
.hero-check-card{
  background:rgba(15,23,42,0.72);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:22px;
  box-shadow:var(--glow-brand),var(--shadow-card);
  -webkit-backdrop-filter:blur(18px);
          backdrop-filter:blur(18px);
}
.side-card-title{
  display:flex;
  align-items:center;
  gap:9px;
  font-size:16px;
  color:#fff;
  font-weight:700;
  margin-bottom:16px;
}
.side-card-title::before{
  content:"";
  width:4px;
  height:18px;
  border-radius:2px;
  background:linear-gradient(var(--brand),var(--electric));
  box-shadow:0 0 12px rgba(139,92,246,.6);
}
.self-check{display:grid;gap:2px}
.self-check li{
  display:grid;
  grid-template-columns:auto 1fr;
  gap:12px;
  padding:10px 0;
  border-bottom:1px dashed rgba(255,255,255,0.07);
  font-size:14px;
}
.self-check li:last-child{border-bottom:0}
.self-check b{color:#E3E9F5;font-weight:600;display:block}
.self-check span{color:var(--ink-mute);font-weight:400;font-size:13px}
.self-check .check-num{
  width:30px;height:30px;
  border-radius:10px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:rgba(139,92,246,0.15);
  border:1px solid rgba(139,92,246,0.26);
  color:var(--brand-2);
  font-size:13px;font-weight:700;
}
.self-check-btn{margin-top:16px}
@media(max-width:1023px){
  .page-hero-grid{grid-template-columns:1fr;gap:26px}
}
.doc-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 340px;
  gap:52px;
  padding:64px 0 72px;
}
.entry-main{min-width:0}
.doc-section{
  padding:46px 0;
  border-bottom:1px solid rgba(255,255,255,0.06);
  scroll-margin-top:110px;
}
.doc-section:first-child{padding-top:10px}
.doc-section:last-child{border-bottom:0}
.sec-tag,
.bigsec-label{
  font-size:12px;
  font-weight:700;
  letter-spacing:.15em;
  text-transform:uppercase;
  color:var(--electric);
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-bottom:10px;
}
.sec-tag::before,.bigsec-label::before{
  content:"";
  width:22px;height:1px;
  background:linear-gradient(90deg,var(--electric),transparent);
  display:inline-block;
}
.doc-h2{
  font-size:clamp(24px,2.4vw,34px);
  font-weight:800;
  line-height:1.35;
  letter-spacing:-.02em;
  color:var(--ink-title);
  margin-bottom:12px;
}
.doc-sub{color:var(--ink-mute);font-size:15px;max-width:760px;margin-bottom:28px}
.type-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:18px;
}
.type-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:19px;
  padding:22px;
  position:relative;
  overflow:hidden;
  transition:transform .26s ease,border-color .26s ease,background .26s ease;
}
.type-card::before{
  content:"";
  position:absolute;
  top:0;left:22px;right:22px;
  height:1px;
  background:linear-gradient(90deg,var(--brand),transparent);
  transition:opacity .25s ease;
}
.type-card:hover{
  transform:translateY(-3px);
  background:var(--surface-2);
  border-color:rgba(139,92,246,0.34);
}
.type-icon{
  width:48px;height:48px;
  border-radius:14px;
  margin-bottom:15px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:rgba(139,92,246,0.16);
  border:1px solid rgba(139,92,246,0.26);
  color:#D8C8FF;
}
.type-card:nth-child(2) .type-icon{background:rgba(34,211,238,0.13);border-color:rgba(34,211,238,0.26);color:#99F2FF}
.type-card:nth-child(3) .type-icon{background:rgba(255,122,0,0.13);border-color:rgba(255,122,0,0.28);color:#FFC387}
.type-card:nth-child(4) .type-icon{background:rgba(52,211,153,0.13);border-color:rgba(52,211,153,0.26);color:#A5F3D9}
.type-title{font-size:18px;font-weight:700;color:#fff;margin-bottom:6px}
.type-text{font-size:14px;color:var(--ink-mute);line-height:1.75}
.type-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:12px;
  font-size:13px;
  color:var(--electric);
  font-weight:600;
}
.type-link svg{width:14px;height:14px;transition:transform .2s ease}
.type-link:hover svg{transform:translateX(4px)}
.guide-note{
  margin-top:22px;
  display:flex;
  gap:13px;
  padding:16px 18px;
  border-radius:16px;
  border:1px solid rgba(251,191,36,0.18);
  background:rgba(251,191,36,0.06);
  font-size:14px;
  color:rgba(255,238,197,0.88);
  align-items:flex-start;
}
.guide-note b{color:#FFE7A8;font-weight:600}
.split-block{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:30px;
  align-items:center;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:24px;
  padding:26px;
}
@media(max-width:860px){
  .split-block{grid-template-columns:1fr}
}
.check-colums{display:grid;gap:13px}
.url-check-item{
  display:flex;
  gap:14px;
  align-items:flex-start;
}
.url-check-icon{
  width:26px;
  height:26px;
  flex:0 0 26px;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  margin-top:2px;
  background:rgba(52,211,153,.14);
  color:var(--success);
  border:1px solid rgba(52,211,153,.3);
}
.url-check-icon svg{width:14px;height:14px}
.url-check-item h4{font-size:16px;color:#EAF0FB;font-weight:700;margin-bottom:3px}
.url-check-item p{color:var(--ink-mute);font-size:14px}
.visual-panel{
  border-radius:18px;
  overflow:hidden;
  background:var(--bg1);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
}
.visual-panel .image-meta{
  padding:10px 14px;
  font-size:13px;
  color:var(--ink-mute);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
}
.visual-panel .image-meta small{display:flex;align-items:center;gap:7px}
.visual-panel .image-meta small::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--success);box-shadow:0 0 8px rgba(52,211,153,.6)}
.steps-track{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:14px;
  margin:28px 0 20px;
  position:relative;
}
.step-item{
  position:relative;
  padding:17px 14px 16px;
  border-radius:17px;
  background:var(--surface);
  border:1px solid var(--line);
  min-height:150px;
  transition:border-color .25s ease,background .25s ease,transform .25s ease;
}
.step-item:hover{border-color:rgba(139,92,246,.4);background:var(--surface-2);transform:translateY(-3px)}
.step-index{
  font-family:Barlow,Arial,sans-serif;
  font-size:31px;
  font-weight:800;
  color:rgba(255,255,255,.09);
  position:absolute;
  top:10px;right:12px;
  letter-spacing:-1px;
  line-height:1;
}
.step-number{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:28px;
  height:26px;
  padding:0 8px;
  border-radius:999px;
  background:rgba(139,92,246,.15);
  color:var(--brand-2);
  font-size:13px;
  font-weight:700;
  margin-bottom:12px;
  border:1px solid rgba(139,92,246,.24);
}
.step-item h4{color:#E5EBF6;font-size:16px;font-weight:700;margin-bottom:7px;line-height:1.4}
.step-item p{font-size:13px;color:var(--ink-mute);line-height:1.7}
.compare-caption{
  font-size:13px;
  color:var(--ink-mute);
  text-align:center;
  margin-top:-8px;
  margin-bottom:14px;
}
.compare-table{
  width:100%;
  border-collapse:separate;
  border-spacing:0;
  background:var(--surface);
  border-radius:20px;
  overflow:hidden;
  border:1px solid var(--line);
  font-size:14px;
}
.compare-table th{
  background:rgba(255,255,255,0.04);
  color:#E5EAF5;
  text-align:left;
  padding:16px 18px;
  font-weight:600;
  border-bottom:1px solid rgba(255,255,255,.1);
  min-width:124px;
}
.compare-table td{
  padding:14px 18px;
  color:#CBD4E3;
  border-bottom:1px solid rgba(255,255,255,.05);
  vertical-align:top;
}
.compare-table tr:last-child td{border-bottom:0}
.compare-table td:first-child{color:#A8B2C6;font-weight:500;background:rgba(255,255,255,.015)}
.compare-table td b{color:#F2F4FA;font-weight:600}
.compare-table .cell-success{color:var(--success)}
.compare-table .cell-warn{color:var(--warning)}
.compact-device-split{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:18px;
  margin-top:10px;
}
.device-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:18px;
  overflow:hidden;
}
.device-card .device-head{
  padding:13px 15px;
  display:flex;
  align-items:center;
  gap:9px;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.device-dot{
  width:9px;height:9px;border-radius:50%;
  background:rgba(139,92,246,.75);
}
.device-card:nth-child(2) .device-dot{background:rgba(34,211,238,.6)}
.device-card .device-name{font-size:14px;color:#DDE5F2;font-weight:600}
.device-card img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
}
@media(max-width:640px){
  .compact-device-split{grid-template-columns:1fr}
  .steps-track{grid-template-columns:repeat(2,1fr)}
  .type-grid{grid-template-columns:1fr}
}
@media(max-width:420px){
  .steps-track{grid-template-columns:1fr}
}
.trouble-box{
  background:rgba(255,122,0,0.06);
  border:1px solid rgba(255,122,0,0.22);
  border-radius:20px;
  padding:22px;
  margin-top:20px;
}
.trouble-box h4{color:#FFE5CE;font-size:15px;margin-bottom:8px;display:flex;gap:8px}
.fault-list{display:grid;gap:10px;margin-top:4px}
.fault-list li{display:grid;grid-template-columns:auto 1fr;gap:12px;align-items:flex-start;font-size:14px;color:var(--ink-body);padding:9px 0;border-bottom:1px dashed rgba(255,255,255,.07)}
.fault-list li:last-child{border:0}
.fault-list b{color:#E8E3F4;font-weight:600}
.fault-list span{color:var(--ink-mute)}
.fault-list .fault-arrow{font-size:13px;line-height:1.6;color:var(--action);font-weight:700}
.faq-panel{display:grid;gap:12px;margin-top:30px}
details.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:18px;
  padding:0 20px;
  overflow:hidden;
  transition:border-color .25s ease,background .25s ease;
}
details.faq-item:hover{background:rgba(139,92,246,0.06);border-color:rgba(139,92,246,0.26)}
details.faq-item[open]{background:rgba(139,92,246,0.07);border-color:rgba(139,92,246,0.28)}
details.faq-item summary{
  list-style:none;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:19px 0;
  min-height:66px;
  font-size:15.5px;
  font-weight:600;
  color:#E9EDF6;
  cursor:pointer;
}
details.faq-item summary::-webkit-details-marker{display:none}
details.faq-item summary .faq-mark{
  width:26px;
  height:26px;
  flex:0 0 26px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.2);
  position:relative;
  transition:transform .25s ease,background .25s ease,border-color .25s ease;
}
details.faq-item summary .faq-mark::before,
details.faq-item summary .faq-mark::after{
  content:"";
  position:absolute;
  background:#C4D0E4;
  border-radius:2px;
  transition:background .25s ease;
}
details.faq-item summary .faq-mark::before{width:11px;height:1.6px;left:6.5px;top:11px}
details.faq-item summary .faq-mark::after{width:1.6px;height:11px;top:6.5px;left:11px}
details.faq-item[open] summary .faq-mark{transform:rotate(45deg);background:rgba(139,92,246,.2);border-color:rgba(139,92,246,.5)}
details.faq-item[open] summary .faq-mark::before,
details.faq-item[open] summary .faq-mark::after{background:var(--brand-2)}
.faq-answer{
  padding:0 0 22px;
  color:var(--ink-body);
  font-size:14.5px;
  line-height:1.85;
  max-width:640px;
}
.faq-answer a{color:var(--electric);font-weight:600;text-decoration:underline;text-underline-offset:3px}
.faq-answer a:hover{color:var(--brand-2)}
.side-sticky{
  position:sticky;
  top:105px;
  display:grid;
  gap:18px;
}
.side-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:20px;
  padding:20px;
}
.side-card.status-card{overflow:hidden}
.line-pulse{display:flex;align-items:center;gap:11px;padding:9px 0;font-size:14px}
.line-pulse .pulse{
  width:9px;height:9px;
  border-radius:50%;
  background:var(--success);
  box-shadow:0 0 0 0 rgba(52,211,153,.5);
  animation:pulse 2.2s infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(52,211,153,.45)}
  70%{box-shadow:0 0 0 10px rgba(52,211,153,0)}
  100%{box-shadow:0 0 0 0 rgba(52,211,153,0)}
}
.line-pulse .pulse.warn{background:var(--warning);box-shadow:0 0 0 0 rgba(251,191,36,.4)}
.line-pulse .pulse.warn{animation-name:pulseWarn}
@keyframes pulseWarn{
  0%{box-shadow:0 0 0 0 rgba(251,191,36,.4)}
  70%{box-shadow:0 0 0 9px rgba(251,191,36,0)}
}
.line-pulse .pulse-name{color:#CBD5E7;font-weight:500}
.line-pulse .pulse-state{margin-left:auto;color:var(--ink-mute);font-size:13px;display:flex;align-items:center;gap:6px}
.quick-list{display:grid;gap:3px}
.quick-list a{
  display:flex;
  align-items:center;
  gap:11px;
  padding:10px 8px;
  border-radius:12px;
  font-size:14px;
  color:#C9D3E4;
}
.quick-list a:hover{background:rgba(255,255,255,.05);color:#fff;padding-left:13px}
.quick-list a::before{
  content:"";
  width:31px;height:4px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--electric));
  opacity:.6;
  flex:0 0 auto;
}
.quick-list a small{color:var(--ink-mute);margin-left:auto;font-size:12px}
.move-cards{display:grid;gap:10px}
.move-link{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:13px 15px;
  border-radius:15px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.025);
  transition:border-color .2s ease,background .2s ease,transform .2s ease;
}
.move-link:hover{transform:translateX(4px);border-color:rgba(34,211,238,.28);background:rgba(34,211,238,.05)}
.move-link b{color:#E8EAF2;font-weight:600;font-size:14px;display:block;margin-bottom:2px}
.move-link span{font-size:12px;color:var(--ink-mute)}
.move-link svg{width:16px;height:16px;color:var(--electric);flex:0 0 auto}
.remind-box{
  background:rgba(248,113,113,.06);
  border:1px solid rgba(248,113,113,.2);
  border-radius:16px;
  padding:17px;
}
.remind-box h4{color:#FFC9C9;font-size:14px;margin-bottom:9px;display:flex;gap:7px}
.remind-box p{font-size:13px;color:var(--ink-mute);line-height:1.7}
.remind-box a{color:#FED6D6;text-decoration:underline}
.bottom-cta{
  position:relative;
  overflow:hidden;
  border-radius:26px;
  margin:20px 0 72px;
  background:
    radial-gradient(500px 300px at 20% 0%,rgba(139,92,246,.28),transparent 68%),
    radial-gradient(420px 280px at 90% 30%,rgba(34,211,238,.17),transparent 62%),
    linear-gradient(135deg,#171E33,#0E1626),
    url("/assets/images/backpic/back-3.png") center center / cover;
  border:1px solid rgba(255,255,255,.1);
  padding:44px 48px;
  box-shadow:0 20px 56px rgba(0,0,0,.4);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:30px;
}
.bottom-cta::after{
  content:"ENTRY / SAFE";
  position:absolute;
  right:20px;
  top:8px;
  font-size:60px;
  font-weight:800;
  letter-spacing:.13em;
  color:rgba(255,255,255,.02);
  pointer-events:none;
  line-height:1;
}
.bottom-cta .cta-sub{color:var(--action-2);font-size:14px;font-weight:600;letter-spacing:.09em;margin-bottom:8px;display:block}
.bottom-cta h2{color:#fff;font-size:29px;line-height:1.4;font-weight:800;max-width:620px;margin-bottom:14px}
.bottom-cta p{color:#B0BBD0;font-size:15px;max-width:570px;margin-bottom:14px}
.bottom-cta .cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:8px}
@media(max-width:760px){
  .bottom-cta{flex-direction:column;align-items:stretch;padding:26px}
  .doc-layout{grid-template-columns:1fr;padding:40px 0 48px}
  .page-hero{padding:32px 0 44px}
}
.site-footer{
  background:rgba(8,12,20,0.92);
  border-top:1px solid rgba(255,255,255,.06);
  padding:54px 0 28px;
  position:relative;
  z-index:1;
}
.site-footer::before{
  content:"";
  height:1px;
  display:block;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.2),transparent);
  position:relative;
  top:-54px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr;
  gap:40px;
  margin-bottom:36px;
}
.footer-brand-title{
  font-size:21px;
  font-weight:800;
  color:#EAEAFF;
  margin-bottom:12px;
}
.footer-brand-title span{color:var(--electric)}
.footer-about{color:var(--ink-mute);font-size:14px;max-width:440px}
.footer-secure{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-top:14px;
  border:1px solid rgba(251,191,36,.18);
  background:rgba(251,191,36,.05);
  color:#DECC9E;
  padding:8px 13px;
  border-radius:12px;
  font-size:13px;
}
.footer-secure span{font-size:14px}
.footer-col h3{
  color:#D8DFEC;
  font-size:15px;
  font-weight:600;
  margin-bottom:12px;
}
.footer-col h3::after{
  content:"";
  display:block;
  width:26px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--electric),transparent);
  margin-top:5px;
}
.footer-col ul{display:grid;gap:8px}
.footer-col a{color:var(--ink-mute);font-size:14px}
.footer-col a:hover{color:var(--electric);padding-left:3px}
.footer-meta{
  border-top:1px solid rgba(255,255,255,.07);
  padding-top:22px;
  display:flex;
  justify-content:space-between;
  gap:18px;
  flex-wrap:wrap;
  color:#5E6D84;
  font-size:13px;
}
.footer-meta span{display:inline-flex;align-items:center;gap:8px}
@media(max-width:900px){
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-about-col{grid-column:1/-1}
  .nav-pill{width:min(calc(100% - 24px),760px);padding-left:16px}
  .brand-suffix{font-size:13px}
  .nav-toggle{display:flex}
  .site-nav{
    position:fixed;
    inset:0;
    margin:0;
    pointer-events:auto;
    display:grid;
    place-items:center;
    background:rgba(6,10,18,0.8);
    -webkit-backdrop-filter:blur(16px);
            backdrop-filter:blur(16px);
    opacity:0;
    visibility:hidden;
    transition:opacity .25s ease,visibility .25s ease;
    z-index:999;
  }
  .site-nav.open{opacity:1;visibility:visible}
  .site-nav ul{
    flex-direction:column;
    background:var(--bg1);
    border:1px solid var(--line);
    border-radius:26px;
    padding:14px;
    width:min(calc(100% - 64px),380px);
    box-shadow:var(--shadow-card);
  }
  .site-nav a{padding:14px 18px;font-size:17px;border-bottom:1px solid rgba(255,255,255,.04)}
  .site-nav a::after{display:none}
  .site-nav a.active{background:rgba(139,92,246,.14)}
  .nav-cta{margin-left:0}
}
@media(max-width:760px){
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .hero-h1{font-size:36px}
  .doc-section{padding:35px 0}
  .bottom-cta h2{font-size:23px}
  .brand-suffix{display:none}
  .nav-cta{display:none}
  .nav-pill{height:58px}
  .site-header-spacer{height:72px}
}
@media(max-width:420px){
  .footer-meta{flex-direction:column}
  .nav-pill{width:calc(100% - 20px)}
}
.floating-cta{
  position:fixed;
  right:24px;
  bottom:28px;
  z-index:900;
  border-radius:999px;
  height:50px;
  padding:0 22px;
  min-width:124px;
  box-shadow:0 15px 35px rgba(255,122,0,.35),0 2px 10px rgba(0,0,0,.4);
}
.floating-cta::before{
  content:"";
  width:8px;height:8px;border-radius:50%;
  background:#68FFD3;
  box-shadow:0 0 0 0 rgba(52,211,153,.6);
  animation:pulse 2s infinite;
  margin-right:9px;
  vertical-align:middle;
}
@media(max-width:520px){
  .floating-cta{
    right:12px;
    bottom:14px;
    height:44px;
    padding:0 15px;
    min-width:auto;
    font-size:13px;
  }
}
.to-top{
  position:fixed;
  right:26px;
  bottom:88px;
  width:42px;
  height:42px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.14);
  background:rgba(20,28,45,.7);
  color:#AEB9CC;
  font-size:18px;
  z-index:899;
  -webkit-backdrop-filter:blur(8px);
          backdrop-filter:blur(8px);
  transition:transform .22s ease,color .22s ease,background .22s ease;
  opacity:.7;
  display:flex;
  align-items:center;
  justify-content:center;
  transform:translateY(20px);
  pointer-events:none;
}
.to-top.show{opacity:1;transform:translateY(0);pointer-events:auto}
.to-top:hover{background:rgba(139,92,246,.25);color:#fff}
@media(max-width:520px){
  .to-top{right:12px;bottom:66px}
}
@media (prefers-reduced-motion: reduce){
  *{animation:none!important;transition-duration:.01ms!important;scroll-behavior:auto}
}

/* roulang page: category2 */
:root {
  --bg0: #0B0F1A;
  --bg1: #111927;
  --surface: rgba(255,255,255,0.04);
  --surface-2: rgba(255,255,255,0.07);
  --line: rgba(255,255,255,0.09);
  --line-strong: rgba(255,255,255,0.14);
  --brand: #8B5CF6;
  --brand-2: #C4B5FD;
  --electric: #22D3EE;
  --action: #FF7A00;
  --action-2: #FFB347;
  --ink-title: #F5F7FC;
  --ink-body: #BCC5D4;
  --ink-mute: #7C8BA1;
  --success: #34D399;
  --warning: #FBBF24;
  --danger: #F87171;
  --radius-card: 20px;
  --radius-btn: 999px;
  --shadow-card: 0 16px 40px rgba(0,0,0,0.30);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg0);
  color: var(--ink-body);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body.nav-open {
  overflow: hidden;
}

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

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

button {
  border: none;
  background: none;
  font: inherit;
  color: inherit;
  cursor: pointer;
}

ul, ol {
  list-style: none;
}

h1, h2, h3, h4 {
  color: var(--ink-title);
  line-height: 1.3;
}

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

.eyebrow {
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--electric);
  font-weight: 600;
  margin-bottom: 12px;
}

.eyebrow-orange {
  color: var(--action-2);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: 52px;
  padding: 0 28px;
  border-radius: var(--radius-btn);
  font-weight: 600;
  letter-spacing: 0.02em;
  border: 1px solid transparent;
  transition: all .25s ease;
  white-space: nowrap;
  cursor: pointer;
}

.btn:focus-visible,
a:focus-visible,
button:focus-visible {
  outline: 2px solid rgba(34,211,238,0.6);
  outline-offset: 3px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--action) 0%, var(--action-2) 100%);
  color: #fff;
  box-shadow: 0 8px 24px rgba(255,122,0,0.18);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 34px rgba(255,122,0,0.30);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 4px 14px rgba(255,122,0,0.22);
}

.btn-ghost {
  background: rgba(255,255,255,0.06);
  border-color: var(--line-strong);
  color: #fff;
}

.btn-ghost:hover {
  border-color: var(--electric);
  color: var(--electric);
  background: rgba(34,211,238,0.08);
}

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

.btn-sm {
  height: 40px;
  padding: 0 20px;
  font-size: 14px;
}

.btn-block {
  width: 100%;
}

.site-header {
  position: fixed;
  top: 14px;
  left: 0;
  right: 0;
  z-index: 1000;
  display: flex;
  justify-content: center;
  padding: 0 16px;
  pointer-events: none;
}

.nav-pill {
  pointer-events: auto;
  width: 100%;
  max-width: 1240px;
  min-height: 64px;
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 8px 10px 8px 24px;
  background: rgba(10,15,26,0.72);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  backdrop-filter: blur(18px) saturate(160%);
  border: 1px solid rgba(255,255,255,0.09);
  border-radius: 999px;
  box-shadow: 0 18px 50px rgba(0,0,0,0.26);
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 2px;
  flex-shrink: 0;
}

.brand-strong {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 0.02em;
  background: linear-gradient(135deg, #e4dcff 0%, var(--brand-2) 40%, var(--electric) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: #fff;
}

@media (min-width: 600px) {
  .brand-strong {
    -webkit-text-fill-color: transparent;
  }
}

.brand-suffix {
  font-size: 16px;
  font-weight: 600;
  color: #9da8bd;
  margin-left: 6px;
}

.site-nav {
  display: flex;
  align-items: center;
  margin-left: auto;
}

.site-nav ul {
  display: flex;
  align-items: center;
  gap: 24px;
}

.site-nav a {
  position: relative;
  display: inline-block;
  font-size: 15px;
  color: #aeb8cb;
  padding: 8px 2px;
  font-weight: 500;
  transition: color .2s ease;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 0;
  height: 3px;
  border-radius: 3px;
  background: var(--action);
  transform: translateX(-50%);
  transition: width .25s ease;
}

.site-nav a:hover {
  color: #fff;
}

.site-nav a:hover::after {
  width: 24px;
}

.site-nav a.active {
  color: #fff;
  font-weight: 600;
}

.site-nav a.active::after {
  width: 24px;
  background: var(--action);
}

.nav-cta {
  margin-left: auto;
}

.nav-cta:hover {
  color: #fff;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.04);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  margin-left: auto;
}

.nav-toggle span {
  display: block;
  width: 16px;
  height: 2px;
  border-radius: 2px;
  background: #fff;
  transition: transform .3s ease, opacity .3s ease;
}

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

body.nav-open .nav-toggle span:nth-child(2) {
  opacity: 0;
}

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

.cat-hero {
  position: relative;
  padding: 150px 0 64px;
  overflow: hidden;
  background:
    radial-gradient(1100px 460px at 12% -20%, rgba(139,92,246,0.24), transparent 60%),
    radial-gradient(900px 420px at 92% 0%, rgba(34,211,238,0.16), transparent 58%),
    linear-gradient(180deg, #131A2A 0%, var(--bg0) 100%);
}

.cat-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-2.png');
  background-position: center top;
  background-size: cover;
  opacity: 0.16;
  -webkit-mask-image: linear-gradient(to bottom, rgba(0,0,0,0.9), transparent 95%);
  mask-image: linear-gradient(to bottom, rgba(0,0,0,0.9), transparent 95%);
  pointer-events: none;
}

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

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--ink-mute);
  margin-bottom: 22px;
}

.breadcrumb a {
  color: var(--ink-body);
  transition: color .2s ease;
}

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

.breadcrumb span {
  color: var(--ink-mute);
}

.cat-hero h1 {
  font-size: 52px;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--ink-title);
  margin-bottom: 20px;
  max-width: 860px;
}

.cat-hero-lead {
  max-width: 860px;
  font-size: 17px;
  line-height: 1.9;
  color: #b6c0d2;
  margin-bottom: 32px;
}

.cat-hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 12px;
}

.cat-hero-stats div {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 14px 22px;
  min-width: 150px;
}

.cat-hero-stats strong {
  display: block;
  font-size: 28px;
  color: var(--ink-title);
  font-weight: 800;
}

.cat-hero-stats span {
  font-size: 13px;
  color: var(--ink-mute);
}

.cat-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 330px;
  gap: 48px;
  align-items: start;
  padding-top: 72px;
  padding-bottom: 96px;
}

.cat-main {
  min-width: 0;
}

.doc-section {
  margin-top: 16px;
  padding-bottom: 72px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.doc-section h2 {
  font-size: 32px;
  font-weight: 800;
  color: var(--ink-title);
  letter-spacing: -0.3px;
  margin-bottom: 16px;
}

.doc-section-title {
  position: relative;
  padding-bottom: 14px;
}

.doc-section-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 54px;
  height: 4px;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--electric), transparent);
}

.section-lead {
  line-height: 1.85;
  max-width: 860px;
  margin-bottom: 32px;
  color: var(--ink-body);
}

.channel-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 24px;
}

.channel-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  padding: 28px 24px 26px;
  overflow: hidden;
  transition: transform .28s ease, border-color .28s ease, background .28s ease;
}

.channel-card::before {
  content: "";
  position: absolute;
  left: 24px;
  top: 0;
  width: 48px;
  height: 2px;
  background: linear-gradient(90deg, var(--brand), var(--electric));
}

.channel-card:hover {
  transform: translateY(-4px);
  border-color: rgba(139,92,246,0.35);
  background: var(--surface-2);
}

.channel-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: rgba(139,92,246,0.14);
  color: var(--brand-2);
  font-weight: 800;
  font-size: 15px;
  letter-spacing: 0.02em;
  margin-bottom: 20px;
}

.channel-card:nth-child(2) .channel-no {
  background: rgba(34,211,238,0.12);
  color: var(--electric);
}

.channel-card:nth-child(3) .channel-no {
  background: rgba(255,122,0,0.12);
  color: var(--action-2);
}

.channel-card h3 {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 12px;
}

.channel-card p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-body);
}

.diff-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 40px;
  align-items: center;
  margin-top: 20px;
}

.diff-copy ul {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 8px;
}

.diff-copy li {
  padding-left: 22px;
  position: relative;
  color: var(--ink-body);
  line-height: 1.8;
}

.diff-copy li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 12px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--electric);
  box-shadow: 0 0 0 4px rgba(34,211,238,0.12);
}

.diff-figure {
  position: relative;
}

.diff-figure img {
  width: 100%;
  border-radius: 24px;
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow-card);
  object-fit: cover;
  aspect-ratio: 3 / 2;
  background: #111927;
}

.diff-figure figcaption {
  margin-top: 12px;
  font-size: 13px;
  color: var(--ink-mute);
  text-align: center;
}

.table-scroll {
  overflow-x: auto;
  margin-top: 30px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255,255,255,0.025);
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
}

.compare-table th,
.compare-table td {
  text-align: left;
  padding: 16px 20px;
  font-size: 14px;
  line-height: 1.75;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.compare-table th {
  background: rgba(139,92,246,0.10);
  color: var(--ink-title);
  font-weight: 700;
  white-space: nowrap;
}

.compare-table td {
  color: var(--ink-body);
}

.compare-table tr:last-child th,
.compare-table tr:last-child td {
  border-bottom: none;
}

.steps {
  counter-reset: step;
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 28px;
}

.steps li {
  position: relative;
  counter-increment: step;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 20px 24px 20px 92px;
  transition: border-color .2s ease, background .2s ease;
}

.steps li::before {
  content: "0" counter(step);
  position: absolute;
  left: 22px;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 15px;
  background: linear-gradient(135deg, rgba(139,92,246,0.22), rgba(34,211,238,0.12));
  border: 1px solid rgba(139,92,246,0.3);
  color: var(--brand-2);
  font-weight: 800;
  font-size: 16px;
}

.steps li:hover {
  border-color: rgba(139,92,246,0.35);
}

.steps h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--ink-title);
  margin-bottom: 6px;
}

.steps p {
  font-size: 15px;
  color: var(--ink-body);
  line-height: 1.75;
}

.check-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 26px;
}

.check-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px 20px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
}

.check-item:hover {
  border-color: var(--line-strong);
  background: rgba(255,255,255,0.06);
}

.check-icon {
  flex: 0 0 26px;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 3px;
  background: rgba(52,211,153,0.12);
  color: var(--success);
  font-weight: 800;
  font-size: 14px;
}

.check-item h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--ink-title);
  margin-bottom: 4px;
}

.check-item p {
  font-size: 14px;
  color: var(--ink-body);
  line-height: 1.75;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 24px;
}

.faq-item {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface);
  overflow: hidden;
  transition: border-color .25s ease;
}

.faq-item.active {
  border-color: rgba(139,92,246,0.32);
  background: rgba(139,92,246,0.06);
}

.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  text-align: left;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink-title);
  transition: background .25s ease;
}

.faq-q:hover {
  background: rgba(139,92,246,0.08);
}

.faq-icon {
  flex: 0 0 32px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--electric);
  font-size: 20px;
  font-weight: 400;
  transition: transform .35s ease, background .25s ease, color .25s ease;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
  border-color: rgba(34,211,238,0.45);
  background: rgba(34,211,238,0.10);
}

.faq-a {
  display: none;
  padding: 0 24px 22px;
  color: var(--ink-body);
  font-size: 15px;
  line-height: 1.9;
  border-top: 1px solid transparent;
}

.faq-item.active .faq-a {
  display: block;
  border-top-color: rgba(255,255,255,0.06);
  padding-top: 16px;
}

.guide-card {
  background: rgba(139,92,246,0.06);
  border: 1px solid rgba(139,92,246,0.20);
  border-radius: 22px;
  padding: 28px 24px 24px;
  box-shadow: 0 12px 40px rgba(0,0,0,0.20);
}

.guide-tag {
  display: inline-flex;
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--brand-2);
  background: rgba(139,92,246,0.16);
  border: 1px solid rgba(139,92,246,0.24);
  margin-bottom: 16px;
}

.guide-card h2 {
  font-size: 21px;
  font-weight: 800;
  color: var(--ink-title);
  margin-bottom: 10px;
}

.guide-card > p {
  font-size: 14px;
  color: var(--ink-body);
  line-height: 1.8;
  margin-bottom: 20px;
}

.guide-links {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 24px;
}

.guide-links a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 14px;
  border-radius: 14px;
  background: rgba(255,255,255,0.03);
  border: 1px solid transparent;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink-body);
  transition: background .2s ease, border-color .2s ease, color .2s ease;
}

.guide-links a::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--electric);
  flex-shrink: 0;
}

.guide-links a:hover {
  color: #fff;
  background: rgba(139,92,246,0.14);
  border-color: rgba(139,92,246,0.22);
}

.guide-note {
  margin-top: 18px;
  padding: 16px 16px 16px 18px;
  border-radius: 16px;
  background: rgba(255,180,0,0.08);
  border: 1px solid rgba(251,191,36,0.18);
  font-size: 13px;
  line-height: 1.8;
  color: #e7d4a5;
}

.guide-note strong {
  color: var(--warning);
  font-weight: 700;
}

.guide-cta {
  margin-top: 18px;
}

.cta-panel {
  position: relative;
  margin: 32px 0 20px;
  padding: 44px;
  border-radius: 26px;
  background:
    radial-gradient(700px 220px at 8% 10%, rgba(139,92,246,0.20), transparent 60%),
    radial-gradient(500px 200px at 100% 20%, rgba(34,211,238,0.12), transparent 60%),
    rgba(255,255,255,0.03);
  border: 1px solid var(--line-strong);
  overflow: hidden;
}

.cta-panel::after {
  content: "";
  position: absolute;
  width: 200px;
  height: 200px;
  right: -60px;
  bottom: -100px;
  border-radius: 50%;
  border: 1px solid rgba(255,122,0,0.16);
  box-shadow: 0 0 0 36px rgba(255,122,0,0.04);
}

.cta-panel h2 {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 14px;
}

.cta-panel p {
  max-width: 760px;
  color: var(--ink-body);
  line-height: 1.9;
  margin-bottom: 26px;
}

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

.site-footer {
  background: linear-gradient(180deg, transparent 0%, rgba(139,92,246,0.05) 60%);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 70px 0 26px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr;
  gap: 48px;
}

.footer-brand-title {
  font-size: 21px;
  font-weight: 800;
  color: var(--ink-title);
  margin-bottom: 18px;
}

.footer-brand-title span {
  color: var(--electric);
}

.footer-about {
  font-size: 15px;
  color: var(--ink-mute);
  line-height: 1.9;
  max-width: 440px;
  margin-bottom: 18px;
}

.footer-secure {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--ink-body);
  background: rgba(52,211,153,0.08);
  border: 1px solid rgba(52,211,153,0.16);
  padding: 9px 14px;
  border-radius: 999px;
}

.footer-col-title {
  font-size: 16px;
  color: var(--ink-title);
  font-weight: 700;
  margin-bottom: 18px;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-col a {
  font-size: 15px;
  color: var(--ink-mute);
  transition: color .2s ease;
}

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

.footer-meta {
  margin-top: 52px;
  padding-top: 22px;
  border-top: 1px solid rgba(255,255,255,0.06);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  color: var(--ink-mute);
  font-size: 13px;
}

.float-cta {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 900;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--action), var(--action-2));
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  box-shadow: 0 10px 30px rgba(255,122,0,0.35);
  transition: transform .25s ease, box-shadow .25s ease;
}

.float-cta::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--electric);
  box-shadow: 0 0 0 0 rgba(34,211,238,0.5);
  animation: pulse 1.8s infinite;
}

.float-cta:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 36px rgba(255,122,0,0.42);
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(34,211,238,0.5);
  }
  70% {
    box-shadow: 0 0 0 8px rgba(34,211,238,0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(34,211,238,0);
  }
}

@media (max-width: 1100px) {
  .nav-pill {
    gap: 18px;
    padding-left: 20px;
  }

  .site-nav ul {
    gap: 18px;
  }

  .cat-layout {
    grid-template-columns: 1fr;
    gap: 28px;
    padding-bottom: 70px;
  }

  .cat-aside {
    margin-top: 0;
    display: block;
    order: 2;
  }

  .cat-aside-inner {
    position: static;
  }

  .guide-card h2 {
    font-size: 20px;
  }
}

@media (max-width: 900px) {
  .site-nav {
    position: fixed;
    left: 16px;
    right: 16px;
    top: 78px;
    display: none;
    background: rgba(14,20,33,0.96);
    -webkit-backdrop-filter: blur(18px);
    backdrop-filter: blur(18px);
    border: 1px solid var(--line);
    border-radius: 22px;
    box-shadow: 0 24px 60px rgba(0,0,0,0.42);
    padding: 20px;
    flex-direction: column;
    align-items: stretch;
    margin-left: 0;
  }

  .site-nav ul {
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
  }

  .site-nav a {
    display: block;
    padding: 12px 16px;
    border-radius: 14px;
    font-size: 17px;
    background: rgba(255,255,255,0.02);
  }

  .site-nav a:hover {
    background: rgba(139,92,246,0.12);
  }

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

  .site-nav a.active {
    background: rgba(139,92,246,0.14);
    color: #fff;
  }

  body.nav-open .site-nav {
    display: flex;
  }

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

  .nav-cta {
    display: none;
  }

  .nav-pill {
    min-height: 60px;
    padding: 6px 6px 6px 18px;
  }

  .cat-hero {
    padding-top: 120px;
  }

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

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

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

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

@media (max-width: 767px) {
  .container {
    padding: 0 20px;
  }

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

  .cat-hero-stats {
    gap: 10px;
  }

  .cat-hero-stats div {
    flex: 1 1 calc(33% - 10px);
    min-width: 0;
    padding: 12px 14px;
  }

  .cat-hero-stats strong {
    font-size: 22px;
  }

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

  .doc-section {
    padding-bottom: 52px;
  }

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

  .steps li {
    padding: 18px 18px 18px 20px;
  }

  .steps li::before {
    position: static;
    width: 38px;
    height: 38px;
    margin-bottom: 14px;
    transform: none;
  }

  .cta-panel {
    padding: 30px 22px;
  }

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

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

  .footer-meta {
    flex-direction: column;
    align-items: flex-start;
  }

  .float-cta {
    right: 14px;
    bottom: 14px;
    height: 44px;
    padding: 0 16px;
    font-size: 14px;
    max-width: 140px;
  }
}

/* roulang page: category3 */
:root{
  --bg0:#0B0F1A;
  --bg1:#111927;
  --surface:rgba(255,255,255,0.04);
  --surface-2:rgba(255,255,255,0.07);
  --line:rgba(255,255,255,0.09);
  --line-strong:rgba(255,255,255,0.14);
  --brand:#8B5CF6;
  --brand-2:#C4B5FD;
  --electric:#22D3EE;
  --action:#FF7A00;
  --action-2:#FFB347;
  --ink-title:#F5F7FC;
  --ink-body:#BCC5D4;
  --ink-mute:#7C8BA1;
  --success:#34D399;
  --warning:#FBBF24;
  --danger:#F87171;
  --radius-sm:14px;
  --radius-card:20px;
  --radius-lg:24px;
  --shadow-card:0 16px 40px rgba(0,0,0,0.3);
  --shadow-float:0 2px 12px rgba(0,0,0,0.24);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg0);color:var(--ink-body);font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button{font-family:inherit;cursor:pointer}
input,button,textarea{font-family:inherit}
::selection{background:rgba(139,92,246,0.4);color:#fff}
ul,ol{list-style:none}
.container{width:100%;max-width:1240px;margin:0 auto;padding-left:24px;padding-right:24px}
.section{padding:100px 0}
@media(max-width:768px){.section{padding:70px 0}}
@media(max-width:767px){.section{padding:48px 0}}

/* ===== 顶部悬浮胶囊导航 ===== */
.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;display:flex;justify-content:center;padding:14px 18px 0;pointer-events:none}
.nav-pill{width:100%;max-width:1240px;display:flex;align-items:center;justify-content:space-between;gap:20px;background:rgba(10,15,26,0.72);border:1px solid var(--line);border-radius:999px;padding:8px 10px 8px 22px;height:64px;backdrop-filter:blur(18px) saturate(160%);-webkit-backdrop-filter:blur(18px) saturate(160%);box-shadow:0 12px 40px rgba(0,0,0,0.36);pointer-events:auto}
.brand{display:inline-flex;align-items:baseline;gap:5px;white-space:nowrap}
.brand-strong{font-size:23px;font-weight:800;background:linear-gradient(120deg,#D6C9FF,#8B5CF6,#22D3EE);-webkit-background-clip:text;background-clip:text;color:transparent;letter-spacing:-0.3px}
.brand-suffix{font-size:15px;font-weight:600;color:var(--ink-body);letter-spacing:0.05em}
.site-nav ul{display:flex;align-items:center;gap:6px}
.site-nav a{position:relative;display:inline-block;padding:10px 16px;font-size:15px;font-weight:500;color:rgba(245,247,252,0.78);border-radius:999px;transition:color .25s ease}
.site-nav a::after{content:"";position:absolute;left:18px;right:18px;bottom:4px;height:3px;border-radius:3px;background:transparent;transition:background .25s ease}
.site-nav a:hover{color:#fff;background:rgba(139,92,246,0.1)}
.site-nav a.active{color:#fff}
.site-nav a.active::after{background:var(--action);box-shadow:0 0 10px rgba(255,122,0,0.55)}
.nav-cta{flex-shrink:0;margin-left:2px}
.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;border:0;font-weight:700;transition:transform .25s ease,box-shadow .25s ease,background .25s ease;white-space:nowrap}
.btn:focus-visible{outline:2px solid var(--electric);outline-offset:3px}
.btn-primary{background:linear-gradient(135deg,var(--action),var(--action-2));color:#fff;box-shadow:0 8px 26px rgba(255,122,0,0.28)}
.btn-primary:hover{background:linear-gradient(135deg,#ff8f26,#ffc36d);box-shadow:0 12px 30px rgba(255,122,0,0.38);transform:translateY(-2px)}
.btn-ghost{background:rgba(255,255,255,0.06);color:var(--ink-title);border:1px solid rgba(255,255,255,0.18)}
.btn-ghost:hover{border-color:var(--electric);color:var(--electric);background:rgba(34,211,238,0.08)}
.btn-sm{height:42px;padding:0 24px;font-size:14px}
.nav-toggle{display:none;width:46px;height:46px;border-radius:50%;background:transparent;border:1px solid var(--line-strong);flex-direction:column;align-items:center;justify-content:center;gap:5px;transition:border-color .3s}
.nav-toggle span{width:20px;height:2px;border-radius:2px;background:var(--ink-title);transition:transform .3s,opacity .3s}
.nav-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.active span:nth-child(2){opacity:0}
.nav-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
@media(max-width:900px){
  .site-header{width:100%;padding-left:16px;padding-right:16px}
  .nav-pill{height:58px;border-radius:999px;padding-left:20px;padding-right:8px}
  .site-nav{display:none}
  .site-nav.open{display:block;position:fixed;top:84px;left:16px;right:16px;background:rgba(9,13,23,0.96);border:1px solid var(--line-strong);border-radius:22px;backdrop-filter:blur(20px);padding:12px}
  .site-nav.open ul{flex-direction:column;align-items:stretch}
  .site-nav.open a{display:block;padding:15px 20px;border-radius:14px;background:rgba(255,255,255,0.03);color:var(--ink-body)}
  .site-nav.open a.active{background:rgba(139,92,246,0.16);color:#fff}
  .site-nav.open a::after{display:none}
  .nav-cta{display:none}
  .nav-toggle{display:inline-flex}
}
@media(max-width:520px){
  .brand-strong{font-size:20px}
  .brand-suffix{font-size:13px}
}

/* ===== 页面信息带 ===== */
.category-hero{position:relative;padding:180px 0 90px;overflow:hidden;background:var(--bg0)}
.category-hero .bg-layer{position:absolute;inset:0;z-index:0;background:
    radial-gradient(520px 340px at 18% 24%,rgba(139,92,246,0.24),transparent 65%),
    radial-gradient(680px 420px at 84% 12%,rgba(34,211,238,0.13),transparent 60%),
    linear-gradient(180deg,#0E1424 0%,#0B0F1A 100%)}
.category-hero .text-layer{position:relative;z-index:2}
.crumbs{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--ink-mute);margin-bottom:22px}
.crumbs a{color:var(--electric);transition:color .2s}
.crumbs a:hover{color:var(--brand-2)}
.crumbs i{font-style:normal;color:var(--ink-mute);opacity:.7}
.crumbs span{color:var(--ink-body)}
.hero-label{display:inline-flex;align-items:center;gap:8px;background:rgba(139,92,246,0.14);border:1px solid rgba(139,92,246,0.35);color:var(--brand-2);font-size:13px;font-weight:600;padding:6px 16px;border-radius:999px;margin-bottom:20px}
.hero-label i{width:8px;height:8px;border-radius:50%;background:var(--electric);box-shadow:0 0 0 4px rgba(34,211,238,0.2)}
.category-hero h1{font-size:48px;line-height:1.22;font-weight:800;color:var(--ink-title);letter-spacing:-0.5px;margin-bottom:20px;max-width:900px}
.category-hero h1 em{font-style:normal;background:linear-gradient(110deg,var(--action-2),var(--action));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{max-width:880px;font-size:17px;line-height:1.95;color:var(--ink-body)}
.hero-chips{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}
.hero-chips span{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,0.05);border:1px solid var(--line);color:var(--ink-title);font-size:14px;font-weight:600;padding:9px 18px;border-radius:999px}
.hero-chips span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--electric)}
@media(max-width:992px){.category-hero{padding:156px 0 64px}.category-hero h1{font-size:38px}}
@media(max-width:767px){.category-hero{padding-top:140px}.category-hero h1{font-size:30px}.hero-chips span{padding:8px 14px;font-size:13px}}

/* ===== 登录前准备 ===== */
.pre-login{background:var(--bg1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.split-intro{display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:center}
.section-kicker{font-size:12px;letter-spacing:.14em;font-weight:600;color:var(--electric);text-transform:uppercase;margin-bottom:12px}
.section-title{font-size:38px;font-weight:800;color:var(--ink-title);line-height:1.3;letter-spacing:-0.2px;margin-bottom:18px}
.body-lead{font-size:17px;line-height:2;color:var(--ink-body);margin-bottom:20px}
.intro-list{margin-top:22px;display:grid;gap:14px}
.intro-list li{display:flex;gap:12px;align-items:flex-start;background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:16px 20px;transition:transform .25s,background .25s,border-color .25s}
.intro-list li:hover{transform:translateX(4px);background:var(--surface-2);border-color:rgba(34,211,238,0.35)}
.intro-list li img,.intro-list li .dot{flex-shrink:0;width:34px;height:34px;border-radius:10px;background:rgba(139,92,246,0.18);display:flex;align-items:center;justify-content:center;font-size:17px;margin-top:2px}
.intro-list strong{display:block;color:var(--ink-title);font-size:16px;font-weight:700;margin-bottom:3px}
.intro-list p{font-size:14.5px;line-height:1.75;color:var(--ink-mute)}
.visual-frame{position:relative}
.visual-frame .corner-glow{position:absolute;inset:-18px;background:radial-gradient(260px 180px at 80% 10%,rgba(139,92,246,0.22),transparent 60%);z-index:0;border-radius:28px}
.visual-frame img{position:relative;z-index:1;border-radius:26px;border:1px solid var(--line-strong);box-shadow:var(--shadow-card)}
.visual-tag{position:absolute;z-index:3;left:20px;bottom:20px;background:rgba(8,11,20,0.78);backdrop-filter:blur(12px);border:1px solid var(--line-strong);border-radius:14px;padding:10px 16px;color:var(--ink-title);font-size:13px;font-weight:600;display:flex;align-items:center;gap:8px}
.visual-tag i{width:7px;height:7px;background:var(--success);border-radius:50%;box-shadow:0 0 10px rgba(52,211,153,0.7);animation:pulse 1.8s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.45}}
@media(max-width:992px){.split-intro{grid-template-columns:1fr;gap:44px}}
@media(max-width:767px){.section-title{font-size:28px}.split-intro{gap:32px}}

/* ===== 主内容双栏 ===== */
.safety-guide{background:var(--bg0)}
.guide-grid{display:grid;grid-template-columns:minmax(0,1fr) 380px;gap:56px;align-items:start}
.prose-guide{max-width:900px}
.prose-guide h2{font-size:30px;font-weight:800;color:var(--ink-title);line-height:1.4;margin:60px 0 16px;letter-spacing:-0.2px;scroll-margin-top:120px}
.prose-guide h2:first-child{margin-top:0}
.prose-guide h2::before{content:"#";margin-right:10px;background:linear-gradient(135deg,var(--brand),var(--electric));-webkit-background-clip:text;background-clip:text;color:transparent;font-weight:800}
.prose-guide p{font-size:16px;line-height:2;margin-bottom:18px;color:var(--ink-body)}
.guide-highlight{background:rgba(139,92,246,0.08);border-left:3px solid var(--brand);padding:16px 20px;border-radius:0 14px 14px 0;font-size:15px;color:var(--ink-body);line-height:1.9;margin-bottom:24px}
.guide-list{border-top:1px solid var(--line);padding-top:12px;display:grid;grid-template-columns:1fr 1fr;gap:12px 20px;margin:20px 0 26px}
.guide-list li{position:relative;padding-left:26px;font-size:15.5px;color:var(--ink-body)}
.guide-list li::before{content:"✓";position:absolute;left:0;top:0;color:var(--success);font-weight:800}
.prose-figure{margin:30px 0;border-radius:22px;border:1px solid var(--line);overflow:hidden;background:var(--bg1)}
.prose-figure img{border-radius:0;width:100%}
.prose-figure figcaption{display:flex;align-items:center;gap:10px;padding:14px 18px;font-size:13px;color:var(--ink-mute);background:rgba(255,255,255,0.02)}
.prose-figure figcaption i{flex-shrink:0;width:7px;height:7px;border-radius:50%;background:var(--electric)}

/* 右侧引导卡 */
.guide-aside{position:sticky;top:130px;display:grid;gap:18px}
.side-card{background:linear-gradient(180deg,rgba(255,255,255,0.055),rgba(255,255,255,0.025));border:1px solid var(--line);border-radius:22px;padding:24px}
.side-card .side-title{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:var(--ink-title)}
.side-card .side-title span{flex-shrink:0;width:34px;height:34px;border-radius:10px;background:rgba(139,92,246,0.22);display:flex;align-items:center;justify-content:center;font-size:16px}
.check-list{display:grid;gap:10px;margin-top:16px}
.check-list li{display:flex;align-items:flex-start;gap:10px;padding:9px 12px;border-radius:12px;background:rgba(255,255,255,0.03);color:var(--ink-body);font-size:14.5px;line-height:1.7}
.check-list li i{flex-shrink:0;width:6px;height:6px;border-radius:50%;background:var(--action);margin-top:11px}
.support-card{background:linear-gradient(145deg,rgba(139,92,246,0.14),rgba(34,211,238,0.08));border:1px solid rgba(139,92,246,0.35);border-radius:22px;padding:26px}
.support-card h3{font-size:19px;color:var(--ink-title);font-weight:800;margin-bottom:8px}
.support-card p{font-size:14px;color:var(--ink-mute);margin-bottom:20px;line-height:1.85}
.side-btn{display:flex;width:100%;margin-top:8px}
.side-btn+.side-btn{margin-top:10px}
.btn-electric{background:linear-gradient(135deg,var(--electric),#38BDF8);color:#06121c;box-shadow:0 6px 20px rgba(34,211,238,0.22)}
.btn-electric:hover{transform:translateY(-1px);box-shadow:0 10px 28px rgba(34,211,238,0.3)}
@media(max-width:992px){
  .guide-grid{grid-template-columns:1fr;gap:38px}
  .guide-aside{position:static;grid-template-columns:1fr 1fr;align-items:start}
  .support-card{grid-column:1/-1}
}
@media(max-width:767px){
  .guide-aside{grid-template-columns:1fr}
  .guide-list{grid-template-columns:1fr}
  .prose-guide h2{font-size:25px;margin-top:44px}
}

/* ===== 处理步骤 ===== */
.process-section{background:var(--bg1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.process-center{text-align:center;margin-bottom:46px}
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:step}
.step-card{background:rgba(255,255,255,0.04);border:1px solid var(--line);border-radius:22px;padding:28px 22px;position:relative;overflow:hidden;transition:transform .25s,border-color .25s,background .25s}
.step-card:hover{transform:translateY(-6px);border-color:rgba(34,211,238,0.38);background:rgba(255,255,255,0.07)}
.step-card::before{counter-increment:step;content:counter(step,decimal-leading-zero);position:absolute;top:18px;right:18px;font-size:34px;font-weight:800;color:rgba(255,255,255,0.07)}
.step-icon{width:52px;height:52px;border-radius:15px;display:flex;align-items:center;justify-content:center;background:rgba(139,92,246,0.18);font-size:24px;margin-bottom:16px}
.step-card h3{font-size:17px;color:var(--ink-title);font-weight:800;margin-bottom:8px}
.step-card p{font-size:14px;line-height:1.85;color:var(--ink-mute)}
.step-card .go-link{display:inline-block;font-size:13.5px;font-weight:700;color:var(--electric);margin-top:12px}
.step-card .go-link:hover{color:var(--brand-2)}
@media(max-width:992px){.process-grid{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.process-grid{grid-template-columns:1fr}}

/* ===== 警惕列表 ===== */
.warning-block{background:var(--bg0)}
.warning-wrap{background:linear-gradient(145deg,rgba(248,113,113,0.06),rgba(255,255,255,0.02));border:1px solid rgba(248,113,113,0.22);border-radius:28px;padding:48px;display:grid;grid-template-columns:.8fr 1.2fr;gap:44px;align-items:center}
.warning-title h2{font-size:32px;font-weight:800;color:var(--ink-title);line-height:1.35;margin-bottom:14px}
.warning-title h2 span{color:var(--danger)}
.warning-title p{color:var(--ink-mute);font-size:15px;line-height:1.9}
.fraud-list{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.fraud-list li{background:rgba(255,255,255,0.04);border:1px solid var(--line);border-radius:16px;padding:16px;font-size:14.5px;color:var(--ink-body);line-height:1.8;position:relative;padding-left:44px}
.fraud-list li::before{content:"!";position:absolute;left:14px;top:14px;width:22px;height:22px;border-radius:50%;background:rgba(248,113,113,0.2);color:var(--danger);font-weight:800;display:flex;align-items:center;justify-content:center;font-size:14px}
@media(max-width:992px){.warning-wrap{grid-template-columns:1fr;padding:36px}}
@media(max-width:767px){.fraud-list{grid-template-columns:1fr}.warning-title h2{font-size:26px}.warning-wrap{padding:28px}}

/* ===== FAQ ===== */
.faq-section{background:var(--bg1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.faq-head{max-width:760px;margin-bottom:34px}
.faq-head h2{font-size:38px;font-weight:800;color:var(--ink-title);line-height:1.3}
.faq-head p{margin-top:12px;color:var(--ink-mute);font-size:16px}
.faq-list{max-width:920px}
.faq-item{border:1px solid var(--line);border-radius:18px;margin-bottom:14px;background:rgba(255,255,255,0.025);overflow:hidden;transition:border-color .25s}
.faq-item.active{border-color:rgba(139,92,246,0.5);background:rgba(139,92,246,0.055)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;background:transparent;border:0;text-align:left;color:var(--ink-title);font-size:16px;font-weight:700;padding:19px 22px;line-height:1.6}
.faq-q:hover{color:#fff}
.faq-q::after{content:"+";flex-shrink:0;width:32px;height:32px;border-radius:50%;background:rgba(255,255,255,0.08);display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:300;color:var(--electric);transition:transform .3s ease,background .3s ease}
.faq-item.active .faq-q::after{transform:rotate(45deg);background:var(--action);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a-inner{padding:0 22px 20px;color:var(--ink-mute);font-size:15px;line-height:1.95}
@media(max-width:767px){.faq-head h2{font-size:27px}.faq-q{font-size:15px;padding:16px}}

/* ===== CTA ===== */
.cta-section{background:var(--bg0);position:relative;overflow:hidden}
.cta-box{position:relative;background:
    radial-gradient(600px 280px at 18% 10%,rgba(139,92,246,0.2),transparent 60%),
    radial-gradient(600px 320px at 85% 90%,rgba(34,211,238,0.14),transparent 60%),
    linear-gradient(145deg,#121A2E,#0B0F1A);
    border:1px solid var(--line);border-radius:30px;padding:66px 44px;text-align:center;overflow:hidden}
.cta-box::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:70%;height:1px;background:linear-gradient(90deg,transparent,rgba(139,92,246,0.8),transparent)}
.cta-box h2{font-size:36px;color:var(--ink-title);font-weight:800;line-height:1.35;max-width:760px;margin:0 auto 16px}
.cta-box p{font-size:16px;color:var(--ink-mute);max-width:680px;margin:0 auto 30px;line-height:1.9}
.cta-actions{display:flex;align-items:center;justify-content:center;gap:14px;flex-wrap:wrap}
.btn-lg{height:54px;padding:0 38px;font-size:16px}
@media(max-width:767px){.cta-box{padding:52px 24px;border-radius:24px}.cta-box h2{font-size:27px}}

/* ===== 浮动CTA ===== */
.float-cta{position:fixed;bottom:24px;right:24px;z-index:1000;height:50px;padding:0 22px;background:linear-gradient(135deg,var(--action),var(--action-2));color:#fff;border-radius:999px;display:inline-flex;align-items:center;gap:10px;font-size:14px;font-weight:800;box-shadow:0 10px 30px rgba(255,122,0,0.38);transition:transform .25s,box-shadow .25s}
.float-cta i{width:8px;height:8px;border-radius:50%;background:var(--electric);box-shadow:0 0 0 4px rgba(34,211,238,0.28);animation:pulse 1.8s infinite}
.float-cta:hover{transform:translateY(-3px);box-shadow:0 16px 36px rgba(255,122,0,0.45);color:#fff}
@media(max-width:520px){.float-cta{bottom:14px;right:14px;padding:0 16px;height:44px;font-size:13px}}

/* ===== Footer ===== */
.site-footer{background:#0a0e18;border-top:1px solid var(--line);padding:0}
.footer-blank{height:2px;background:linear-gradient(90deg,transparent,rgba(139,92,246,0.3),rgba(34,211,238,0.3),transparent)}
.footer-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr;gap:56px;padding:68px 0 46px}
.footer-brand-title{font-size:24px;font-weight:800;color:var(--ink-title);margin-bottom:14px}
.footer-brand-title span{color:var(--brand-2)}
.footer-about{font-size:15px;color:var(--ink-mute);line-height:1.95;max-width:420px;margin-bottom:20px}
.footer-secure{display:inline-flex;align-items:center;gap:10px;background:rgba(52,211,153,0.09);border:1px solid rgba(52,211,153,0.25);border-radius:12px;padding:10px 16px;font-size:13px;color:var(--success);line-height:1.6}
.footer-col-title{font-size:16px;font-weight:800;color:var(--ink-title);margin-bottom:16px}
.footer-col ul{display:grid;gap:11px}
.footer-col a{display:inline-block;font-size:14.5px;color:var(--ink-mute);transition:color .2s,transform .2s}
.footer-col a:hover{color:var(--electric);transform:translateX(4px)}
.footer-meta{display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;padding:22px 0 28px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-mute)}
@media(max-width:992px){.footer-grid{grid-template-columns:1fr 1fr;gap:40px}.footer-about-col{grid-column:1/-1}}
@media(max-width:767px){.footer-grid{grid-template-columns:1fr;padding-bottom:36px}.footer-meta{flex-direction:column}}