/* roulang page: index */
:root {
  --page-bg: #0A111F;
  --panel-bg: #0D192C;
  --deep-bg: #060C17;
  --glass-bg: rgba(255,255,255,0.045);
  --card-border: rgba(255,255,255,0.13);
  --glow-line: rgba(255,255,255,0.25);
  --brand: #3271FF;
  --brand-accent: #1FE0A9;
  --amber: #FFC35A;
  --text-main: #E8F0FE;
  --text-sub: #A6B7D4;
  --text-dim: #6E809C;
  --rad-lg: 16px;
  --rad-md: 10px;
  --shadow-card: 0 18px 40px rgba(0,0,0,0.35);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
  background: var(--page-bg);
  color: var(--text-main);
  line-height: 1.75;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color .2s ease; }
button, input, textarea { font: inherit; color: inherit; }
ul, ol { list-style: none; }
:focus-visible { outline: 2px solid var(--brand-accent); outline-offset: 3px; }

body::before,
body::after {
  content: "";
  position: fixed;
  width: 620px;
  height: 620px;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
  filter: blur(160px);
  opacity: .14;
}
body::before {
  top: -220px;
  right: -120px;
  background: #1FE0A9;
}
body::after {
  top: 55%;
  left: 20%;
  width: 460px;
  height: 460px;
  background: #3271FF;
  opacity: .1;
}

.left-rail {
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  width: 260px;
  background: var(--deep-bg);
  border-right: 1px solid rgba(255,255,255,0.06);
  padding: 32px 24px 24px;
  z-index: 60;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}
.rail-brand {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 8px 4px 16px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.brand-logo-mark {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(140deg, rgba(31,224,169,.9), rgba(50,113,255,.7));
  color: #061018;
  font-weight: 900;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 26px rgba(31,224,169,0.18);
  flex-shrink: 0;
}
.brand-name-row { display: flex; flex-direction: column; }
.brand-name-main {
  font-size: 22px;
  font-weight: 900;
  letter-spacing: .05em;
  color: #fff;
  line-height: 1.2;
}
.brand-name-sub {
  font-size: 12px;
  color: var(--brand-accent);
  letter-spacing: 0.24em;
  border-left: 2px solid var(--brand-accent);
  padding-left: 8px;
  margin-top: 8px;
}
.rail-nav {
  margin-top: 32px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}
.rail-lab {
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--text-dim);
  text-transform: uppercase;
  margin-bottom: 6px;
  padding-left: 6px;
}
.rail-nav a {
  position: relative;
  display: flex;
  align-items: center;
  gap: 14px;
  height: 52px;
  padding: 0 16px 0 18px;
  color: var(--text-sub);
  font-size: 15px;
  font-weight: 500;
  border-radius: 12px;
  transition: all .25s ease;
}
.rail-nav a i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(255,255,255,0.18);
  transition: all .25s ease;
  flex-shrink: 0;
}
.rail-nav a:hover {
  background: rgba(255,255,255,0.04);
  color: #fff;
  transform: translateX(2px);
}
.rail-nav a:hover i { background: var(--brand-accent); box-shadow: 0 0 10px var(--brand-accent); }
.rail-nav a.is-active {
  background: rgba(50,113,255,0.12);
  color: #FFFFFF;
}
.rail-nav a.is-active::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  bottom: 16px;
  width: 3px;
  border-radius: 3px;
  background: var(--brand-accent);
  box-shadow: 0 0 12px rgba(31,224,169,.7);
}
.rail-nav a.is-active i { background: var(--brand-accent); }
.rail-bottom {
  border-top: 1px solid rgba(255,255,255,0.07);
  padding-top: 20px;
  margin-top: 30px;
}
.rail-bottom p {
  color: var(--text-dim);
  font-size: 13px;
  margin-bottom: 10px;
}
.rail-contact-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 42px;
  padding: 0 18px;
  background: rgba(31,224,169,0.08);
  border: 1px solid rgba(31,224,169,0.25);
  color: var(--brand-accent);
  font-weight: 600;
  font-size: 14px;
  border-radius: 10px;
  transition: all .25s ease;
}
.rail-contact-btn:hover {
  background: var(--brand-accent);
  color: #061018;
  box-shadow: 0 0 26px rgba(31,224,169,.35);
}

.mobile-header {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 64px;
  background: rgba(10,17,31,.82);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255,255,255,.08);
  z-index: 100;
  padding: 0 16px;
}
.mobile-header-inner {
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.mobile-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-weight: 800;
  font-size: 20px;
}
.mobile-logo span {
  font-size: 11px;
  color: var(--brand-accent);
  letter-spacing: .18em;
  border: 1px solid rgba(31,224,169,.3);
  border-radius: 6px;
  padding: 2px 6px;
  font-weight: 500;
}
.mobile-hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  background: none;
  border: none;
  width: 44px;
  height: 44px;
  cursor: pointer;
}
.mobile-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: #fff;
  border-radius: 3px;
  transition: all .3s ease;
}
.mobile-hamburger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.mobile-hamburger.is-open span:nth-child(2) { opacity: 0; }
.mobile-hamburger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.mobile-drawer {
  display: none;
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  background: rgba(10,17,31,.98);
  backdrop-filter: blur(18px);
  z-index: 99;
  padding: 20px 20px 32px;
  border-bottom: 1px solid rgba(255,255,255,.12);
}
.mobile-drawer.show { display: block; }
.mobile-drawer nav {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.mobile-drawer nav a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 15px 14px;
  color: var(--text-sub);
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.07);
  background: rgba(255,255,255,0.025);
  font-size: 16px;
  font-weight: 500;
  transition: all .2s ease;
}
.mobile-drawer nav a i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand-accent);
  box-shadow: 0 0 8px rgba(31,224,169,.5);
  flex-shrink: 0;
}
.mobile-drawer nav a.is-active { color: #fff; border-color: rgba(31,224,169,.4); background: rgba(31,224,169,.05); }
.mobile-drawer .drawer-foot {
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid rgba(255,255,255,0.08);
  color: var(--text-dim);
  font-size: 13px;
  text-align: center;
}

.shell {
  margin-left: 260px;
  position: relative;
  z-index: 1;
}
.section { padding: 88px 0; position: relative; }
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 28px;
}
.content-narrow {
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
}

.sect-heading {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 42px;
}
.sect-heading-line {
  width: 4px;
  height: 24px;
  background: var(--brand-accent);
  border-radius: 4px;
  box-shadow: 0 0 14px rgba(31,224,169,.4);
}
.sect-heading-text h2 {
  font-size: clamp(26px, 3vw, 32px);
  font-weight: 800;
  line-height: 1.35;
  color: #fff;
  letter-spacing: .01em;
}
.sect-heading-text p { color: var(--text-dim); font-size: 14px; margin-top: 2px; }
.sect-topbar-center {
  text-align: center;
  margin-bottom: 44px;
}

.hero-area {
  min-height: calc(100vh - 0px);
  display: flex;
  align-items: center;
  position: relative;
  padding: 90px 0 110px;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-3.webp');
  background-size: cover;
  background-position: center 30%;
  z-index: 0;
  opacity: .48;
}
.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(10,17,31,.96) 0%, rgba(10,17,31,.82) 58%, rgba(10,17,31,.46) 100%),
    radial-gradient(600px 300px at 90% 10%, rgba(31,224,169,0.08), transparent 60%);
}
.hero-bg::before {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 45%;
  height: 12px;
  background: repeating-linear-gradient(-45deg, rgba(31,224,169,.15) 0 6px, transparent 6px 14px);
  z-index: 1;
}
.hero-content { position: relative; z-index: 2; width: 100%; }
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 22px;
  padding: 6px 14px;
  background: rgba(31,224,169,.08);
  border: 1px solid rgba(31,224,169,.26);
  color: var(--brand-accent);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .14em;
}
.hero-kicker i {
  width: 6px;
  height: 6px;
  background: var(--brand-accent);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--brand-accent);
}
.hero-title h1 {
  font-size: clamp(32px, 5.4vw, 54px);
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: .01em;
  color: #fff;
  max-width: 680px;
  margin-bottom: 22px;
}
.hero-title h1 .soft-gradient {
  background: linear-gradient(90deg, var(--brand-accent), #ffffff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-desc {
  max-width: 580px;
  font-size: 18px;
  line-height: 1.8;
  color: var(--text-sub);
  margin-bottom: 34px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 38px; position: relative; z-index: 5; }
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 26px;
  background: var(--brand-accent);
  color: #061018 !important;
  font-weight: 700;
  font-size: 15px;
  border-radius: 12px;
  border: none;
  cursor: pointer;
  transition: all .25s ease;
  white-space: nowrap;
}
.btn-primary:hover {
  filter: brightness(1.08);
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(31,224,169,.3);
}
.btn-primary:active, .btn-secondary:active, .btn-submit:active { transform: scale(.98); }
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 24px;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.22);
  color: var(--text-main) !important;
  font-weight: 600;
  font-size: 15px;
  border-radius: 12px;
  cursor: pointer;
  transition: all .25s ease;
  white-space: nowrap;
}
.btn-secondary:hover {
  border-color: var(--brand-accent);
  color: var(--brand-accent) !important;
}
.hero-trust {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px 18px;
  padding: 18px 22px;
  background: rgba(255,255,255,0.035);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--rad-lg);
  backdrop-filter: blur(14px);
  max-width: 560px;
}
.hero-trust-item {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--text-sub);
  font-size: 14px;
}
.hero-trust-item .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--brand-accent);
  box-shadow: 0 0 10px rgba(31,224,169,.5);
  flex-shrink: 0;
}
.hero-glow-orb {
  position: absolute;
  z-index: 1;
  right: -80px;
  bottom: -110px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(50,113,255,.2), transparent 68%);
  pointer-events: none;
}
.scroll-cue {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  color: var(--text-dim);
  font-size: 13px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  z-index: 5;
}
.scroll-cue .line {
  width: 1px;
  height: 34px;
  background: linear-gradient(to bottom, var(--brand-accent), transparent);
  position: relative;
  overflow: hidden;
  animation: cueMove 2s ease infinite;
}
@keyframes cueMove {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

.split-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}
.split-sticky {
  position: sticky;
  top: 80px;
  padding: 24px 0;
}
.split-sticky-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
  color: var(--brand-accent);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .1em;
}
.split-sticky-label i {
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--brand-accent);
}
.split-sticky h2 {
  font-size: clamp(26px, 3vw, 36px);
  font-weight: 800;
  color: #fff;
  line-height: 1.3;
  margin-bottom: 18px;
  max-width: 420px;
}
.split-sticky p {
  color: var(--text-sub);
  font-size: 16px;
  line-height: 1.9;
  margin-bottom: 24px;
  max-width: 430px;
}
.split-action { margin-top: 16px; }
.services-stack { display: flex; flex-direction: column; gap: 18px; }
.service-card-item {
  position: relative;
  display: grid;
  grid-template-columns: 64px 1fr auto;
  align-items: center;
  gap: 20px;
  padding: 24px 24px 24px 20px;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.09);
  border-radius: var(--rad-lg);
  transition: all .3s ease;
  min-height: 96px;
  overflow: hidden;
}
.service-card-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 28px;
  right: 28px;
  height: 1px;
  background: rgba(255,255,255,.14);
  opacity: 0;
  transition: all .3s ease;
}
.service-card-item:hover {
  background: rgba(255,255,255,.06);
  border-color: rgba(31,224,169,.32);
  box-shadow: var(--shadow-card);
  transform: translateY(-3px);
  cursor: pointer;
}
.service-card-item:hover::before { opacity: 1; }
.service-number {
  font-size: 42px;
  font-weight: 900;
  font-variant-numeric: tabular-nums;
  background: linear-gradient(135deg, var(--brand-accent), #79a9ff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1;
  letter-spacing: -0.02em;
}
.service-body h3 {
  font-size: 19px;
  font-weight: 650;
  color: #fff;
  margin-bottom: 5px;
}
.service-body p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-sub);
}
.service-arrow {
  font-size: 18px;
  color: var(--text-dim);
  transform: translateX(-4px);
  transition: all .3s ease;
  font-weight: 300;
}
.service-card-item:hover .service-arrow {
  color: var(--brand-accent);
  transform: translateX(4px);
}

.data-band {
  background: rgba(13,25,44,.5);
  border-top: 1px solid rgba(255,255,255,.06);
  border-bottom: 1px solid rgba(255,255,255,.06);
  backdrop-filter: blur(12px);
  padding: 0 !important;
  position: relative;
  overflow: hidden;
}
.data-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(31,224,169,.03), transparent 35%, transparent 75%, rgba(50,113,255,.08));
}
.data-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  position: relative;
  z-index: 2;
}
.data-cell {
  padding: 42px 24px;
  text-align: center;
  background: rgba(255,255,255,0.015);
  border-right: 1px solid rgba(255,255,255,0.07);
  transition: background .3s ease;
}
.data-cell:last-child { border-right: none; }
.data-cell:hover { background: rgba(255,255,255,0.035); }
.data-label {
  font-size: 14px;
  color: var(--text-sub);
  letter-spacing: .1em;
  margin-bottom: 12px;
}
.data-number {
  font-size: clamp(42px, 4.4vw, 60px);
  font-weight: 900;
  color: #fff;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}
.data-suffix {
  color: var(--brand-accent);
  font-size: 28px;
  font-weight: 800;
}
.data-foot { color: var(--text-dim); font-size: 13px; margin-top: 10px; }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
.feature-card {
  border-radius: var(--rad-lg);
  overflow: hidden;
  background: var(--glass-bg);
  border: 1px solid var(--card-border);
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
  display: flex;
  flex-direction: column;
}
.feature-card:hover {
  transform: translateY(-5px);
  border-color: rgba(31,224,169,.35);
  box-shadow: 0 22px 44px rgba(0,0,0,.45);
}
.feature-visual {
  position: relative;
  height: 190px;
  overflow: hidden;
}
.feature-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.feature-card:hover .feature-visual img { transform: scale(1.04); }
.feature-flag {
  position: absolute;
  top: 14px;
  left: 14px;
  display: inline-block;
  padding: 5px 11px;
  background: rgba(6,16,24,.72);
  backdrop-filter: blur(10px);
  color: var(--brand-accent);
  border: 1px solid rgba(31,224,169,.35);
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .06em;
}
.feature-body { padding: 24px; display: flex; flex-direction: column; flex: 1; }
.feature-body h3 {
  font-size: 19px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 10px;
}
.feature-body p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-sub);
  flex: 1;
}
.feature-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 20px;
  color: var(--text-dim);
  font-size: 14px;
  transition: color .2s ease;
}
.feature-card:hover .feature-more { color: var(--brand-accent); }

.process-block {
  background: #0D192C;
  border-radius: 26px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.08);
  display: grid;
  grid-template-columns: 46% 54%;
}
.process-intro {
  padding: 46px 36px;
  background-image: url('/assets/images/coverpic/cover-9.webp');
  background-size: cover;
  background-position: center;
  position: relative;
  z-index: 1;
}
.process-intro::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(75deg, rgba(6,16,24,.92) 0%, rgba(13,25,44,.4) 100%);
  z-index: -1;
}
.process-intro .small-badge {
  display: inline-block;
  background: rgba(31,224,169,.17);
  border: 1px solid rgba(31,224,169,.35);
  color: var(--brand-accent);
  padding: 4px 11px;
  border-radius: 100px;
  font-size: 13px;
  margin-bottom: 18px;
}
.process-intro h2 {
  font-size: clamp(23px, 2.8vw, 31px);
  color: #fff;
  font-weight: 800;
  line-height: 1.4;
  margin-bottom: 16px;
}
.process-intro p {
  color: var(--text-sub);
  font-size: 15px;
  line-height: 1.9;
  max-width: 360px;
}
.process-steps { padding: 34px 34px; display: flex; flex-direction: column; justify-content: center; gap: 0; }
.process-step {
  display: grid;
  grid-template-columns: 48px 1fr auto;
  gap: 16px;
  align-items: flex-start;
  padding: 22px 12px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.process-step:last-child { border-bottom: none; }
.step-index {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(31,224,169,.1);
  color: var(--brand-accent);
  font-weight: 800;
  font-size: 15px;
  border: 1px solid rgba(31,224,169,.25);
}
.process-step h3 { font-size: 17px; color: #fff; font-weight: 650; margin-bottom: 6px; }
.process-step p { color: var(--text-sub); font-size: 14px; line-height: 1.7; }
.step-status {
  color: var(--text-dim);
  font-size: 12px;
  white-space: nowrap;
  background: rgba(255,255,255,.04);
  padding: 4px 10px;
  border-radius: 6px;
  margin-top: 5px;
}

.news-section {
  background: rgba(13,25,44,.3);
  border-top: 1px solid rgba(255,255,255,.04);
  border-bottom: 1px solid rgba(255,255,255,.04);
}
.news-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}
.news-card {
  position: relative;
  background: rgba(255,255,255,0.045);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--rad-lg);
  padding: 26px 26px 24px;
  display: flex;
  flex-direction: column;
  transition: all .32s ease;
  overflow: hidden;
  min-height: 210px;
}
.news-card::after {
  content: "";
  position: absolute;
  right: -30px;
  top: -30px;
  width: 100px;
  height: 100px;
  background: radial-gradient(circle, rgba(31,224,169,.1), transparent 70%);
  opacity: 0;
  transition: opacity .35s ease;
}
.news-card:hover {
  border-color: rgba(31,224,169,.4);
  box-shadow: 0 20px 44px rgba(0,0,0,!important,.4);
  transform: translateY(-4px);
}
.news-card:hover::after { opacity: 1; }
.news-topline {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 15px;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 26px;
  padding: 0 10px;
  background: rgba(31,224,169,.13);
  border: 1px solid rgba(31,224,169,.24);
  border-radius: 100px;
  color: var(--brand-accent);
  font-size: 12px;
  font-weight: 600;
}
.time-stamp {
  color: var(--text-dim);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  letter-spacing: .04em;
}
.news-title {
  font-size: 18px;
  line-height: 1.55;
  font-weight: 650;
  color: #fff;
  margin-bottom: 12px;
  transition: color .2s ease;
}
.news-card:hover .news-title a { color: var(--brand-accent); }
.news-card .news-title a { color: inherit; }
.news-summary {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-sub);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}
.news-card-link {
  margin-top: 18px;
  color: var(--text-dim);
  font-size: 14px;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  opacity: .6;
  transition: all .25s ease;
}
.news-card:hover .news-card-link { opacity: 1; color: var(--brand-accent); }
.news-empty {
  grid-column: 1 / -1;
  padding: 50px;
  border: 1px dashed rgba(255,255,255,.2);
  border-radius: var(--rad-lg);
  text-align: center;
  color: var(--text-sub);
  background: rgba(255,255,255,.02);
  font-size: 15px;
}
.section-top-more {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 24px;
}
.text-link {
  color: var(--brand-accent);
  gap: 8px;
  font-weight: 600;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  transition: gap .2s ease;
}
.text-link:hover { gap: 12px; }

.faq-wrap { max-width: 860px; margin: 0 auto; }
.faq-item {
  background: rgba(255,255,255,0.038);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 14px;
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color .25s ease, background .25s ease;
}
.faq-item.is-open { border-color: rgba(31,224,169,.3); background: rgba(31,224,169,.035); }
.faq-q {
  padding: 22px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  cursor: pointer;
  user-select: none;
}
.faq-q .q-text {
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  line-height: 1.5;
}
.faq-icon {
  position: relative;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.12);
  flex-shrink: 0;
  transition: all .3s ease;
}
.faq-icon::before, .faq-icon::after {
  content: "";
  position: absolute;
  background: var(--brand-accent);
  transition: all .3s ease;
}
.faq-icon::before { top: 14px; left: 8px; right: 8px; height: 2px; }
.faq-icon::after { top: 8px; bottom: 8px; left: 14px; width: 2px; }
.faq-item.is-open .faq-icon { background: rgba(31,224,169,.12); border-color: rgba(31,224,169,.4); }
.faq-item.is-open .faq-icon::after { transform: scaleY(0); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease;
}
.faq-a-inner {
  padding: 0 24px 22px;
  color: var(--text-sub);
  font-size: 15px;
  line-height: 1.9;
}

.cta-section {
  padding: 0 !important;
}
.cta-block {
  max-width: 1200px;
  margin: 0 28px;
  background: #0D192C;
  border-radius: 26px;
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  border: 1px solid rgba(255,255,255,.1);
  box-shadow: 0 20px 50px rgba(0,0,0,.4);
}
.cta-info {
  padding: 44px 44px 40px;
  background-image: url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  position: relative;
  z-index: 1;
}
.cta-info::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, rgba(6,12,23,.96) 20%, rgba(13,25,44,.56) 100%);
  z-index: -1;
}
.cta-info h2 {
  font-size: clamp(24px, 3vw, 30px);
  color: #fff;
  font-weight: 800;
  line-height: 1.4;
  margin-bottom: 16px;
  max-width: 350px;
}
.cta-info p { color: var(--text-sub); font-size: 14px; line-height: 1.9; margin-bottom: 24px; max-width: 340px; }
.cta-contact-items li {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-sub);
  font-size: 14px;
  padding: 6px 0;
}
.cta-contact-items li .ct-mark {
  color: var(--brand-accent);
  font-size: 12px;
  background: rgba(31,224,169,.1);
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.cta-form {
  padding: 44px;
  background: rgba(255,255,255,.02);
  backdrop-filter: blur(18px);
  border-left: 1px solid rgba(255,255,255,.07);
}
.form-group { margin-bottom: 20px; }
.form-label {
  display: block;
  font-size: 14px;
  color: var(--text-sub);
  margin-bottom: 8px;
  font-weight: 500;
}
.form-control {
  width: 100%;
  height: 48px;
  background: rgba(255,255,255,.045);
  border: 1px solid rgba(255,255,255,.15);
  border-radius: 12px;
  padding: 0 16px;
  color: #fff;
  font-size: 15px;
  transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
}
textarea.form-control { height: auto; min-height: 112px; padding: 14px 16px; resize: vertical; line-height: 1.6; }
.form-control::placeholder { color: #7A8CA9; opacity: 1; }
.form-control:focus {
  outline: none;
  background: rgba(255,255,255,.07);
  border-color: rgba(31,224,169,.55);
  box-shadow: 0 0 0 3px rgba(31,224,169,.2);
}
.btn-submit {
  height: 48px;
  padding: 0 22px;
  background: var(--brand-accent);
  color: #061018;
  font-size: 15px;
  font-weight: 700;
  border: none;
  border-radius: 12px;
  cursor: pointer;
  transition: all .25s ease;
  display: inline-block;
}
.btn-submit:hover { box-shadow: 0 0 28px rgba(31,224,169,.35); filter: brightness(1.08); transform: translateY(-2px); }
.form-tip { margin-top: 12px; color: var(--text-dim); font-size: 13px; }

.site-footer {
  background: #050B14;
  border-top: 1px solid rgba(255,255,255,.06);
  padding: 56px 0 30px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.3fr;
  gap: 40px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 28px;
}
.footer-brand-name {
  font-size: 21px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 8px;
  letter-spacing: .04em;
}
.footer-brand-name small {
  display: block;
  font-size: 13px;
  color: var(--brand-accent);
  font-weight: 500;
  letter-spacing: .2em;
  margin-top: 6px;
}
.footer-brand p {
  color: var(--text-dim);
  font-size: 14px;
  line-height: 1.9;
  max-width: 300px;
}
.footer-title h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 650;
  margin-bottom: 16px;
  letter-spacing: .06em;
}
.footer-nav li { padding: 6px 0; }
.footer-nav a { color: var(--text-sub); font-size: 14px; position: relative; transition: all .2s ease; }
.footer-nav a::before {
  content: "";
  position: absolute;
  left: -14px;
  top: 50%;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand-accent);
  transform: scale(0);
  transition: all .2s ease;
}
.footer-nav a:hover { color: var(--brand-accent); padding-left: 4px; }
.footer-nav a:hover::before { transform: scale(1); }
.footer-contact { color: var(--text-dim); font-size: 14px; line-height: 2; }
.footer-contact strong { color: var(--text-sub); font-weight: 600; }
.footer-copyline {
  max-width: 1200px;
  margin: 46px auto 0;
  padding: 22px 28px 0;
  border-top: 1px solid rgba(255,255,255,.07);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--text-dim);
  font-size: 13px;
}
.main-wrap { position: relative; z-index: 2; }
.section-bg-soft { background: rgba(13,25,44,.15); }

a.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--brand-accent);
  color: #061018;
  padding: 10px 16px;
  z-index: 999;
  border-radius: 0 0 10px 0;
}
a.skip-link:focus { left: 0; }

@media screen and (max-width: 1023px) {
  .left-rail { display: none; }
  .mobile-header { display: block; }
  .shell { margin-left: 0; padding-top: 64px; }
  .section { padding: 64px 0; }
  .cta-block { margin: 0 16px; }
  .data-grid { grid-template-columns: repeat(2, 1fr); }
  .data-cell { border-bottom: 1px solid rgba(255,255,255,.06); }
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .split-block { grid-template-columns: 1fr; gap: 20px; }
  .split-sticky { position: static; }
}

@media screen and (max-width: 767px) {
  .hero-area { min-height: auto; padding: 72px 0 80px; }
  .hero-bg { opacity: .4; }
  .hero-title h1 { font-size: 32px; }
  .feature-grid { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .process-block { grid-template-columns: 1fr; }
  .process-intro { padding: 40px 24px; }
  .process-steps { padding: 24px 18px; }
  .cta-block { grid-template-columns: 1fr; }
  .cta-form { border-left: none; border-top: 1px solid rgba(255,255,255,.07); padding: 32px 24px; }
  .cta-info { padding: 38px 24px 34px; }
  .footer-grid { grid-template-columns: 1fr; padding: 0 22px; }
  .footer-copyline { padding: 20px 22px 0; flex-direction: column; text-align: center; }
  .container { padding: 0 18px; }
  .service-card-item { grid-template-columns: 54px 1fr; padding: 18px; }
  .service-arrow { display: none; }
}
@media screen and (max-width: 520px) {
  .data-grid { grid-template-columns: 1fr 1fr; }
  .data-cell { padding: 30px 12px; }
  .data-number { font-size: 36px; }
  .footer-brand-name { font-size: 19px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .btn-primary, .btn-secondary { width: 100%; }
  .news-card { padding: 20px 18px; }
}

/* roulang page: article */
:root{
  --bg:#0A111F;
  --bg-deep:#060C17;
  --bg-panel:#0D192C;
  --card:rgba(255,255,255,.045);
  --line:rgba(255,255,255,.13);
  --line-light:rgba(255,255,255,.25);
  --brand:#3271FF;
  --accent:#1FE0A9;
  --amber:#FFC35A;
  --text:#E8F0FE;
  --muted:#A6B7D4;
  --weak:#6E809C;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 18px 44px rgba(0,0,0,.30);
  --font:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,textarea{font:inherit;}

/* 左侧竖向导航 */
.left-rail{
  position:fixed;
  inset:0 auto 0 0;
  width:264px;
  background:
    radial-gradient(circle at 10% 0%, rgba(50,113,255,.16), transparent 20rem),
    linear-gradient(180deg,#060C17 0%,#081120 82%);
  border-right:1px solid rgba(255,255,255,.07);
  padding:34px 22px 26px;
  display:flex;
  flex-direction:column;
  z-index:40;
}
.rail-brand{
  display:flex;
  flex-direction:column;
  gap:7px;
  padding:0 8px;
}
.rail-brand-name{
  display:flex;
  align-items:baseline;
  flex-wrap:wrap;
  gap:0 3px;
  color:#fff;
  font-size:22px;
  font-weight:800;
  line-height:1.2;
  letter-spacing:.01em;
}
.rail-brand .brand-dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 16px rgba(31,224,169,.85);
  display:inline-block;
  margin-left:5px;
}
.rail-brand small{
  color:var(--muted);
  font-size:12px;
  letter-spacing:.2em;
}
.rail-nav{
  display:flex;
  flex-direction:column;
  gap:6px;
  margin-top:36px;
}
.rail-lab{
  font-size:12px;
  letter-spacing:.18em;
  color:var(--weak);
  padding:0 12px;
  margin-bottom:8px;
}
.rail-nav a{
  position:relative;
  display:flex;
  align-items:center;
  gap:12px;
  padding:13px 12px 13px 18px;
  border-radius:12px;
  color:var(--muted);
  font-size:15px;
  font-weight:500;
  line-height:1.2;
  transition:background .22s,color .22s,transform .22s;
}
.rail-nav a i{
  width:3px;
  height:18px;
  border-radius:4px;
  background:transparent;
  transition:background .2s,box-shadow .2s;
}
.rail-nav a:hover{
  background:rgba(255,255,255,.045);
  color:#fff;
  transform:translateX(2px);
}
.rail-nav a:hover i{
  background:var(--accent);
}
.rail-nav a.is-active{
  background:linear-gradient(90deg,rgba(31,224,169,.16),rgba(31,224,169,.02));
  color:#fff;
}
.rail-nav a.is-active i{
  background:var(--accent);
  box-shadow:0 0 12px rgba(31,224,169,.85);
}
.rail-update{
  margin-top:auto;
  border-top:1px solid rgba(255,255,255,.07);
  padding-top:20px;
}
.rail-update .state{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--muted);
  font-size:13px;
}
.rail-update .state i{
  width:7px;height:7px;border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 10px rgba(31,224,169,.75);
}
.rail-update p{
  margin:12px 0 0;
  color:var(--weak);
  font-size:12px;
  line-height:1.7;
}

/* 移动端顶栏 */
.mobile-topbar{
  display:none;
}
@media (max-width:1023.5px){
  .mobile-topbar{
    position:fixed;
    inset:0 0 auto 0;
    height:64px;
    align-items:center;
    justify-content:space-between;
    padding:0 14px 0 18px;
    background:rgba(6,12,23,.9);
    backdrop-filter:blur(16px);
    -webkit-backdrop-filter:blur(16px);
    border-bottom:1px solid rgba(255,255,255,.09);
    z-index:60;
    display:flex;
  }
  .left-rail{display:none;}
}
.mobile-brand{
  display:flex;
  align-items:baseline;
  gap:5px;
  color:#fff;
  font-weight:800;
  font-size:18px;
  line-height:1.2;
}
.mobile-brand small{
  font-size:11px;
  color:var(--muted);
  letter-spacing:.14em;
  font-weight:400;
}
.mobile-menu-btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  height:40px;
  padding:0 14px;
  border-radius:10px;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.16);
  color:var(--muted);
  font-size:14px;
  cursor:pointer;
  transition:border-color .2s,color .2s;
}
.mobile-menu-btn:hover{
  border-color:rgba(31,224,169,.7);
  color:var(--accent);
}
.mobile-menu-btn span.burger-txt{line-height:1;}
.mobile-menu-btn .burger-icon{
  position:relative;
  width:16px;height:14px;
  display:inline-block;
}
.mobile-menu-btn .burger-icon i{
  position:absolute;
  left:0;
  width:16px;height:2px;
  border-radius:4px;
  background:var(--accent);
  transition:background .2s;
}
.mobile-menu-btn .burger-icon i:nth-child(1){top:1px;}
.mobile-menu-btn .burger-icon i:nth-child(2){top:6px;width:12px;}
.mobile-menu-btn .burger-icon i:nth-child(3){top:11px;width:8px;}

/* 移动端抽屉菜单 */
.mobile-menu-panel{
  background:#060C17 !important;
  width:min(86vw,300px) !important;
  padding:28px 22px !important;
  overflow-y:auto;
}
.mobile-menu-panel .close-button{
  color:var(--muted);
  font-size:26px;
  line-height:1;
  right:14px;
  top:14px;
}
.off-canvas-brand{
  display:flex;
  flex-direction:column;
  gap:6px;
  padding:8px 12px 18px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.off-canvas-brand strong{
  color:#fff;
  font-size:20px;
  font-weight:800;
  line-height:1.2;
}
.off-canvas-brand small{
  color:var(--muted);
  font-size:12px;
  letter-spacing:.16em;
}

/* off-canvas-content 与主内容布局 */
.off-canvas-content{
  min-height:100vh;
  background:
    radial-gradient(circle at 82% -4%, rgba(31,224,169,.075), transparent 30rem),
    radial-gradient(circle at 20% 6%, rgba(50,113,255,.12), transparent 28rem),
    var(--bg);
  margin-left:264px;
  width:auto;
}
@media (max-width:1023.5px){
  .off-canvas-content{margin-left:0;}
}
.main-wrap{min-height:82vh;}

/* 通用按钮 */
.btn-primary,
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:0 24px;
  border-radius:12px;
  border:0;
  font-size:15px;
  font-weight:700;
  line-height:1.2;
  cursor:pointer;
  transition:background .2s,box-shadow .2s,transform .2s,color .2s,border-color .2s;
}
.btn-primary{
  background:var(--accent);
  color:#061018;
}
.btn-primary:hover{
  background:#3eeab8;
  box-shadow:0 0 30px rgba(31,224,169,.3);
  transform:translateY(-2px);
}
.btn-primary:active,
.btn-ghost:active{
  transform:scale(.98);
}
.btn-primary:focus-visible,
.btn-ghost:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:3px;
}
.btn-ghost{
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.22);
  color:var(--text);
}
.btn-ghost:hover{
  border-color:rgba(31,224,169,.85);
  color:var(--accent);
  box-shadow:0 0 22px rgba(31,224,169,.08);
}

/* 文章页内容 */
.article-page{
  padding:46px 0 0;
}
.crumbs{
  display:flex;
  align-items:center;
  flex-wrap:nowrap;
  gap:9px;
  overflow:hidden;
  color:var(--weak);
  font-size:13px;
  margin-bottom:26px;
  max-width:100%;
}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--accent);}
.crumbs .crumb-sep{color:rgba(255,255,255,.25);}
.crumbs .crumb-now{
  max-width:420px;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
  color:var(--muted);
}
.crumbs .crumb-cat{color:var(--accent);}
.article-header{
  max-width:980px;
  margin:0 auto;
}
.article-kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--accent);
  font-size:13px;
  margin-bottom:16px;
  border:1px solid rgba(31,224,169,.3);
  background:rgba(31,224,169,.08);
  border-radius:999px;
  padding:4px 14px;
}
.article-kicker .kick-dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 12px rgba(31,224,169,.8);
}
.article-header h1{
  margin:0 0 20px;
  color:#fff;
  font-size:clamp(32px,5vw,48px);
  font-weight:800;
  line-height:1.18;
  letter-spacing:-.01em;
}
.article-meta{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:10px 20px;
  color:var(--muted);
  font-size:14px;
  margin-top:10px;
}
.article-meta .meta-item{
  display:inline-flex;
  align-items:center;
  gap:7px;
}
.meta-pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--accent);
  border:1px solid rgba(31,224,169,.32);
  background:rgba(31,224,169,.1);
  padding:3px 11px;
  border-radius:999px;
  font-size:12px;
  letter-spacing:.02em;
}
.article-cover{
  position:relative;
  max-width:980px;
  margin:38px auto 0;
  border-radius:24px;
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.article-cover img{
  width:100%;
  height:min(360px,46vw);
  object-fit:cover;
}
.article-cover:after{
  content:'';
  position:absolute;
  left:0;right:0;bottom:0;
  height:58%;
  background:linear-gradient(to top,rgba(5,10,20,.72),transparent);
  pointer-events:none;
}
.article-cover .cover-label{
  position:absolute;
  left:18px;
  bottom:16px;
  z-index:2;
  color:#fff;
  background:rgba(6,16,24,.5);
  border:1px solid rgba(255,255,255,.22);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  padding:5px 14px;
  border-radius:999px;
  font-size:13px;
  font-weight:600;
}

/* 文章正文 */
.article-body-wrap{
  max-width:820px;
  padding-top:40px;
}
.cms-content{
  background:#0B1628;
  border:1px solid rgba(255,255,255,.11);
  border-radius:24px;
  box-shadow:var(--shadow);
  padding:clamp(28px,5vw,56px);
  font-size:16px;
  line-height:1.9;
  color:var(--text);
}
.cms-content h2{
  color:#fff;
  font-size:clamp(24px,3vw,30px);
  font-weight:750;
  line-height:1.3;
  margin:1.7em 0 .62em;
  padding-left:16px;
  border-left:4px solid var(--accent);
  border-radius:2px;
}
.cms-content h3{
  color:#fff;
  font-size:clamp(18px,2vw,22px);
  font-weight:700;
  line-height:1.4;
  margin:1.45em 0 .5em;
}
.cms-content p{
  margin:0 0 1.35em;
}
.cms-content a{
  color:var(--accent);
  border-bottom:1px solid rgba(31,224,169,.4);
  transition:border-color .2s,color .2s;
}
.cms-content a:hover{
  border-color:var(--accent);
  color:#fff;
}
.cms-content ul,
.cms-content ol{
  margin:0 0 1.5em;
  padding-left:1.4em;
}
.cms-content li{
  margin-bottom:.55em;
}
.cms-content li::marker{
  color:var(--accent);
}
.cms-content blockquote{
  margin:1.7em 0;
  padding:18px 22px;
  border-radius:14px;
  border:1px solid rgba(31,224,169,.22);
  background:rgba(31,224,169,.06);
  color:#C9D8F0;
}
.cms-content blockquote p{
  margin:0;
}
.cms-content img{
  border-radius:16px;
  margin:26px auto;
  border:1px solid rgba(255,255,255,.1);
}
.cms-content table{
  width:100%;
  border-collapse:collapse;
  margin:24px 0;
  font-size:14px;
}
.cms-content th,
.cms-content td{
  text-align:left;
  padding:11px 12px;
  border-bottom:1px solid rgba(255,255,255,.1);
}
.cms-content th{
  color:#fff;
  background:rgba(255,255,255,.04);
  font-weight:700;
}
.cms-content hr{
  border:0;
  height:1px;
  background:rgba(255,255,255,.12);
  margin:2.4em 0;
}

/* 文章未找到 */
.not-found-card{
  max-width:760px;
  margin:0 auto;
  background:rgba(11,22,40,.85);
  border:1px solid var(--line);
  border-radius:24px;
  padding:60px 30px;
  text-align:center;
}
.not-found-card h2{
  margin:0 0 12px;
  color:#fff;
  font-size:clamp(24px,4vw,32px);
  font-weight:800;
}
.not-found-card p{
  color:var(--muted);
  margin:0 auto 28px;
  max-width:420px;
}

/* 正文后导航 */
.article-gate{
  max-width:760px;
  margin:36px auto 0;
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  justify-content:space-between;
}
@media(max-width:640px){
  .article-gate .btn-primary,
  .article-gate .btn-ghost{width:100%;}
}

/* 相关栏目卡片 */
.related-section{
  padding:90px 0 30px;
}
.section-heading{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:14px;
}
.section-title{
  display:flex;
  align-items:center;
  gap:13px;
  color:#fff;
  font-size:clamp(24px,3vw,32px);
  font-weight:800;
  line-height:1.25;
  margin:0;
}
.section-title:before{
  content:'';
  width:4px;
  height:24px;
  border-radius:999px;
  background:var(--accent);
  box-shadow:0 0 14px rgba(31,224,169,.55);
}
.section-sub{
  color:var(--weak);
  font-size:14px;
}
.related-grid{
  margin-top:28px;
}
.topic-card{
  border:1px solid var(--line);
  background:var(--card);
  border-radius:20px;
  padding:26px;
  height:100%;
  display:flex;
  flex-direction:column;
  position:relative;
  overflow:hidden;
  transition:border-color .25s,background .25s,transform .25s,box-shadow .25s;
}
.topic-card:before{
  content:'';
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:1px;
  background:linear-gradient(90deg,var(--accent),rgba(31,224,169,0));
  opacity:.5;
}
.topic-card:hover{
  background:rgba(255,255,255,.07);
  border-color:rgba(31,224,169,.52);
  transform:translateY(-3px);
  box-shadow:0 14px 34px rgba(0,0,0,.24);
}
.topic-card-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-bottom:18px;
}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--accent);
  background:rgba(31,224,169,.12);
  border:1px solid rgba(31,224,169,.18);
  padding:4px 11px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
}
.tag:before{
  content:'';
  width:5px;
  height:5px;
  border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 10px rgba(31,224,169,.6);
}
.topic-time{
  color:var(--weak);
  font-size:12px;
}
.topic-card h3{
  margin:0 0 10px;
  color:#F3F8FF;
  font-size:20px;
  font-weight:700;
  line-height:1.45;
}
.topic-card p{
  margin:0 0 22px;
  color:var(--muted);
  font-size:14px;
  line-height:1.75;
}
.topic-foot{
  margin-top:auto;
}
.read-link{
  display:inline-flex;
  align-items:center;
  gap:9px;
  color:var(--accent);
  font-size:14px;
  font-weight:600;
}
.read-link span{
  transition:transform .2s;
}
.read-link:hover span{
  transform:translateX(4px);
}

/* 页脚 */
.site-footer{
  background:#050B14;
  border-top:1px solid rgba(255,255,255,.06);
  margin-top:70px;
  padding:58px 0 30px;
}
.footer-grid{
  max-width:1220px;
  margin:0 auto;
  padding:0 clamp(18px,4vw,40px);
  display:grid;
  grid-template-columns:1.2fr .9fr 1fr;
  gap:48px;
}
.footer-brand-name{
  color:#fff;
  font-size:22px;
  font-weight:800;
  line-height:1.3;
  margin-bottom:6px;
}
.footer-brand-name small{
  display:block;
  margin-top:6px;
  color:var(--weak);
  font-size:12px;
  letter-spacing:.14em;
}
.site-footer p{
  color:var(--muted);
  font-size:14px;
  line-height:1.8;
  margin:16px 0 0;
}
.footer-title{
  margin-bottom:18px;
}
.footer-title h4{
  margin:0;
  color:#fff;
  font-size:17px;
  font-weight:700;
}
.footer-nav,
.footer-contact{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:12px;
}
.footer-nav li a{
  color:var(--muted);
  font-size:14px;
  transition:color .2s,padding-left .2s;
}
.footer-nav li a:hover{
  color:var(--accent);
  padding-left:4px;
}
.footer-contact li{
  color:var(--muted);
  font-size:14px;
  line-height:1.7;
}
.footer-copyline{
  max-width:1220px;
  margin:46px auto 0;
  padding:22px clamp(18px,4vw,40px) 0;
  border-top:1px solid rgba(255,255,255,.06);
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:10px;
  color:var(--weak);
  font-size:13px;
}
@media(max-width:900px){
  .footer-grid{
    grid-template-columns:1fr;
    gap:32px;
  }
}

/* 文章页响应式 */
@media(max-width:1023.5px){
  .article-page{padding-top:84px;}
}
@media(max-width:639.5px){
  .article-page{padding-top:80px;}
  .article-header h1{
    font-size:clamp(26px,7vw,34px);
    line-height:1.25;
  }
  .crumbs{font-size:12px;}
  .crumbs .crumb-now{max-width:150px;}
  .article-meta{gap:8px 12px;font-size:13px;}
  .article-meta .meta-pill{font-size:11px;}
  .article-cover img{height:200px;}
  .cms-content{
    padding:24px 20px;
    border-radius:18px;
    font-size:15px;
  }
  .not-found-card{padding:40px 18px;}
  .related-section{padding-top:60px;}
  .section-heading{flex-direction:column;align-items:flex-start;gap:8px;}
  .topic-card{padding:22px;}
}

/* roulang page: category1 */
:root{
  --bg:#0A111F;
  --bg-deep:#060C17;
  --panel:#0D192C;
  --glass:rgba(255,255,255,.045);
  --line:rgba(255,255,255,.13);
  --line-light:rgba(255,255,255,.25);
  --brand:#3271FF;
  --accent:#1FE0A9;
  --amber:#FFC35A;
  --text:#E8F0FE;
  --text-weak:#A6B7D4;
  --text-more:#6E809C;
  --radius:18px;
  --radius-small:10px;
  --shadow:0 18px 48px rgba(0,0,0,.22);
  --shadow-soft:0 10px 28px rgba(0,0,0,.18);
  --max-w:1200px;
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",system-ui,-apple-system,sans-serif;
  --ease:cubic-bezier(.23,1,.32,1);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding:0;
  background-color:var(--bg);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  background-image:
    radial-gradient(circle at 12% -5%, rgba(50,113,255,.15), transparent 26rem),
    radial-gradient(circle at 92% 30%, rgba(31,224,169,.055), transparent 28rem);
  background-repeat:no-repeat;
  background-attachment:fixed;
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,figure,blockquote{
  margin:0;
}
ul{list-style:none;padding:0}
a{color:inherit;text-decoration:none}
button{border:0;background:none;font-family:inherit;cursor:pointer}
img{max-width:100%;height:auto;display:block}
::selection{background:rgba(31,224,169,.3);color:#fff}
.skip-link{
  position:fixed;
  left:-9999px;
  top:8px;
  z-index:2000;
  padding:8px 18px;
  background:var(--accent);
  color:#061018;
  border-radius:8px;
  font-weight:700;
}
.skip-link:focus{left:8px}

.mobile-bar{
  display:none;
}
.rail-backdrop{
  display:none;
}

.rail-sidebar{
  position:fixed;
  top:0;
  left:0;
  bottom:0;
  z-index:1200;
  width:270px;
  height:100vh;
  background:
    radial-gradient(circle at 20% 0%, rgba(50,113,255,.12), transparent 16rem),
    linear-gradient(180deg,#060C17 0%,#091120 100%);
  border-right:1px solid rgba(255,255,255,.08);
  overflow-y:auto;
  overflow-x:hidden;
  display:flex;
  flex-direction:column;
  box-shadow:16px 0 32px rgba(0,0,0,.18);
}
.rail-inner{
  display:flex;
  flex-direction:column;
  min-height:100%;
  padding:22px 20px 18px;
}
.rail-brand{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
}
.rail-logo{
  display:inline-flex;
  flex-direction:column;
  line-height:1.2;
  padding:4px 0 6px;
}
.rail-logo strong{
  font-size:26px;
  font-weight:800;
  letter-spacing:.02em;
  color:#fff;
}
.rail-logo strong i{
  color:var(--accent);
  font-style:normal;
}
.rail-logo small{
  display:inline-block;
  margin-top:5px;
  font-size:12px;
  letter-spacing:.14em;
  color:#91A6C6;
  font-weight:400;
}
.rail-close-btn{
  width:32px;
  height:32px;
  border-radius:10px;
  color:#E8F0FE;
  font-size:22px;
  line-height:30px;
  display:none;
  align-items:center;
  justify-content:center;
  border:1px solid rgba(255,255,255,.14);
  transition:border-color .25s var(--ease),color .25s var(--ease);
}
.rail-close-btn:hover{border-color:var(--accent);color:var(--accent)}
.rail-editor{
  font-size:13px;
  color:#8FA3C1;
  letter-spacing:.08em;
  padding:4px 0 24px;
  border-bottom:1px solid rgba(255,255,255,.07);
  margin-bottom:20px;
}
.rail-nav{
  display:flex;
  flex-direction:column;
  gap:7px;
}
.rail-lab{
  font-size:11px;
  font-weight:700;
  letter-spacing:.3em;
  color:var(--text-more);
  text-transform:uppercase;
  padding:0 12px 8px;
}
.rail-nav a{
  position:relative;
  display:flex;
  align-items:center;
  gap:12px;
  min-height:46px;
  padding:9px 12px;
  color:var(--text-weak);
  border-radius:12px;
  font-size:15px;
  font-weight:600;
  transition:color .25s var(--ease),background .25s var(--ease),transform .2s var(--ease);
}
.rail-nav a i{
  width:3px;
  height:14px;
  border-radius:3px;
  background:transparent;
  transition:background .25s var(--ease),box-shadow .25s var(--ease);
}
.rail-nav a:hover{
  color:#fff;
  background:rgba(255,255,255,.045);
}
.rail-nav a:hover i{
  background:var(--accent);
  box-shadow:0 0 12px rgba(31,224,169,.75);
}
.rail-nav a.is-active{
  color:#fff;
  background:rgba(31,224,169,.08);
}
.rail-nav a.is-active i{
  background:var(--accent);
  box-shadow:0 0 12px rgba(31,224,169,.85);
}
.rail-nav a:focus-visible,.rail-close-btn:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:2px;
}
.rail-foot{
  margin-top:auto;
  padding-top:28px;
  border-top:1px solid rgba(255,255,255,.06);
}
.rail-status{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text);
}
.pulse-dot{
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 0 0 rgba(31,224,169,.5);
  animation:pulse 1.8s infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(31,224,169,.55)}
  70%{box-shadow:0 0 0 8px rgba(31,224,169,0)}
  100%{box-shadow:0 0 0 0 rgba(31,224,169,0)}
}
.rail-foot p{
  margin-top:14px;
  font-size:12px;
  line-height:1.7;
  color:var(--text-more);
}
.site-shell{
  position:relative;
  margin-left:270px;
  width:calc(100% - 270px);
  min-height:100vh;
}
.site-main{
  display:block;
  position:relative;
}
.cat-container{
  max-width:var(--max-w);
  margin:0 auto;
  padding-left:48px;
  padding-right:48px;
}
.page-hero{
  position:relative;
  padding:86px 0 66px;
  background:
    linear-gradient(90deg,rgba(10,17,31,.95) 0%,rgba(10,17,31,.86) 36%,rgba(10,17,31,.64) 100%),
    url('/assets/images/backpic/back-2.webp') center right / cover no-repeat;
  border-bottom:1px solid rgba(255,255,255,.08);
  overflow:hidden;
}
.page-hero:before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:
    linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:44px 44px;
  opacity:.38;
}
.page-hero:after{
  content:"";
  position:absolute;
  top:0;
  right:0;
  width:330px;
  height:330px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(50,113,255,.16),transparent 68%);
  pointer-events:none;
}
.page-hero .cat-container{
  position:relative;
  z-index:2;
}
.crumb-nav{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  color:var(--text-weak);
  margin-bottom:22px;
  flex-wrap:wrap;
}
.crumb-nav a{
  color:var(--text-weak);
  transition:color .2s var(--ease);
}
.crumb-nav a:hover{color:var(--accent)}
.crumb-nav span{color:var(--text-more)}
.hero-kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:30px;
  padding:0 14px;
  border-radius:999px;
  background:rgba(31,224,169,.12);
  border:1px solid rgba(31,224,169,.34);
  color:var(--accent);
  font-size:13px;
  font-weight:600;
  letter-spacing:.04em;
  margin-bottom:20px;
}
.hero-kicker i{
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 9px rgba(31,224,169,.9);
}
.hero-title{
  font-size:clamp(36px,5vw,56px);
  line-height:1.12;
  font-weight:800;
  color:#fff;
  letter-spacing:-.02em;
  text-wrap:balance;
}
.hero-title .hero-brand-sub{
  display:block;
  font-size:.52em;
  font-weight:700;
  letter-spacing:.2em;
  color:var(--text);
  margin-bottom:8px;
}
.hero-title .hero-title-accent{
  color:var(--accent);
}
.hero-lead{
  margin-top:22px;
  max-width:720px;
  font-size:17px;
  line-height:1.85;
  color:var(--text);
}
.hero-facts{
  display:flex;
  flex-wrap:wrap;
  gap:16px 32px;
  margin-top:28px;
  font-size:14px;
  color:var(--text-weak);
}
.hero-facts span{
  display:inline-flex;
  align-items:center;
  gap:7px;
}
.hero-facts em{
  color:var(--accent);
  font-style:normal;
}
.hero-actions{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
  margin-top:34px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:48px;
  padding:0 26px;
  border-radius:11px;
  font-size:15px;
  font-weight:700;
  letter-spacing:.02em;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease),background .25s var(--ease),filter .25s var(--ease);
  text-align:center;
  gap:8px;
}
.btn:active{transform:scale(.98)}
.btn:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:3px;
}
.btn-primary{
  background:var(--accent);
  color:#061018;
  box-shadow:0 8px 26px rgba(31,224,169,.2);
}
.btn-primary:hover{
  filter:brightness(1.08);
  transform:translateY(-2px);
  box-shadow:0 14px 36px rgba(31,224,169,.32);
}
.btn-ghost{
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.22);
  color:var(--text);
}
.btn-ghost:hover{
  border-color:rgba(31,224,169,.72);
  color:var(--accent);
  transform:translateY(-2px);
}

.stage-section{
  padding:110px 0 90px;
}
.stack-section{
  padding:96px 0;
  background:linear-gradient(180deg,rgba(13,25,44,.96),rgba(10,17,31,.96));
  border-top:1px solid rgba(255,255,255,.07);
  border-bottom:1px solid rgba(255,255,255,.07);
  position:relative;
}
.pulse-section{
  padding:96px 0;
  position:relative;
}
.faq-section{
  padding:100px 0 90px;
  border-top:1px solid rgba(255,255,255,.08);
  background:rgba(6,12,23,.45);
}

.section-head{
  position:relative;
  max-width:820px;
  margin-bottom:50px;
}
.section-head.left-center{
  margin-left:0;
  margin-right:auto;
}
.section-head .eyebrow{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  font-weight:700;
  letter-spacing:.32em;
  color:var(--accent);
  margin-bottom:12px;
}
.section-head .eyebrow::before{
  content:"";
  width:24px;
  height:1px;
  background:var(--accent);
}
.section-head h2{
  position:relative;
  font-size:clamp(26px,3.1vw,34px);
  font-weight:800;
  line-height:1.3;
  color:#fff;
  letter-spacing:-.01em;
  text-wrap:balance;
}
.section-head .head-description{
  margin-top:18px;
  font-size:15px;
  color:var(--text-weak);
  max-width:760px;
}

.duo-layout .cell, .show-layout .cell{
  min-width:0;
}
.cover-figure{
  position:relative;
}
.cover-figure img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:22px;
  box-shadow:var(--shadow);
}
.cover-figure .figure-glass-tag{
  position:absolute;
  right:18px;
  bottom:18px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:32px;
  padding:0 14px;
  border-radius:999px;
  background:rgba(7,13,25,.62);
  border:1px solid rgba(255,255,255,.18);
  color:var(--text);
  font-size:13px;
  font-weight:600;
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
}
.cover-figure .figure-glass-tag i{
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--accent);
}
.cover-copy{
  padding-left:4px;
}
.panel-tag{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:7px;
  background:rgba(31,224,169,.13);
  border:1px solid rgba(31,224,169,.28);
  color:var(--accent);
  font-size:12px;
  font-weight:600;
  letter-spacing:.06em;
  margin-bottom:18px;
}
.cover-copy h3{
  font-size:22px;
  line-height:1.45;
  color:#fff;
  margin-bottom:14px;
  font-weight:800;
}
.cover-copy p{
  color:var(--text-weak);
  font-size:15px;
  line-height:1.8;
  margin-bottom:18px;
}
.tick-list{
  margin-top:22px;
  display:flex;
  flex-direction:column;
  gap:14px;
}
.tick-list li{
  position:relative;
  padding-left:30px;
  font-size:15px;
  color:var(--text);
  line-height:1.7;
}
.tick-list li::before{
  content:"";
  position:absolute;
  left:2px;
  top:8px;
  width:16px;
  height:9px;
  border-left:2px solid var(--accent);
  border-bottom:2px solid var(--accent);
  transform:rotate(-45deg);
  border-radius:1px;
}
.tick-list span{
  color:var(--text-weak);
}

.feature-stack{
  position:relative;
  z-index:2;
  display:flex;
  flex-direction:column;
  gap:18px;
  margin-top:10px;
}
.feature-line{
  display:grid;
  grid-template-columns:90px minmax(0,1fr) 34px;
  gap:10px 26px;
  align-items:center;
  padding:26px 28px;
  border-radius:18px;
  background:rgba(255,255,255,.042);
  border:1px solid rgba(255,255,255,.13);
  transition:background .3s var(--ease),border-color .3s var(--ease),transform .3s var(--ease),box-shadow .3s var(--ease);
}
.feature-line:hover{
  background:rgba(255,255,255,.07);
  transform:translateY(-2px);
  border-color:rgba(31,224,169,.48);
  box-shadow:0 16px 34px rgba(0,0,0,.22);
}
.feature-num{
  font-size:42px;
  font-weight:800;
  line-height:1;
  color:rgba(255,255,255,.08);
  font-variant-numeric:tabular-nums;
  transition:color .3s var(--ease),text-shadow .3s var(--ease);
  grid-column:1;
  grid-row:span 2;
}
.feature-line:hover .feature-num{
  color:rgba(31,224,169,.9);
  text-shadow:0 0 24px rgba(31,224,169,.24);
}
.feature-content{
  min-width:0;
  grid-column:2;
  grid-row:1;
}
.feature-content h3{
  font-size:19px;
  font-weight:700;
  color:#fff;
  margin-bottom:2px;
  letter-spacing:.01em;
}
.feature-content p{
  margin-top:8px;
  color:var(--text-weak);
  font-size:14px;
  line-height:1.75;
}
.feature-line .line-mark{
  grid-column:3;
  grid-row:1;
  display:flex;
  align-items:center;
  justify-content:center;
}
.feature-line .line-mark span{
  position:relative;
  display:block;
  width:26px;
  height:2px;
  background:#52647F;
  transition:background .3s var(--ease),width .3s var(--ease);
}
.feature-line .line-mark span::after{
  content:"";
  position:absolute;
  right:-1px;
  top:-4px;
  width:8px;
  height:8px;
  border-top:2px solid #52647F;
  border-right:2px solid #52647F;
  transform:rotate(45deg);
  border-radius:1px;
  transition:border-color .3s var(--ease);
}
.feature-line:hover .line-mark span{
  background:var(--accent);
  width:34px;
}
.feature-line:hover .line-mark span::after{
  border-color:var(--accent);
}

.show-grid{
  margin-top:24px;
}
.show-cell{
  position:relative;
  border-radius:18px;
  background:rgba(255,255,255,.042);
  border:1px solid rgba(255,255,255,.13);
  padding:22px 24px;
  height:100%;
  transition:border-color .25s var(--ease),background .25s var(--ease),transform .25s var(--ease);
}
.show-cell:hover{
  border-color:rgba(31,224,169,.46);
  background:rgba(255,255,255,.065);
  transform:translateY(-3px);
}
.show-cell .show-index{
  font-size:13px;
  font-weight:700;
  letter-spacing:.2em;
  color:var(--accent);
}
.show-cell h3{
  font-size:18px;
  margin:10px 0 8px;
  color:#fff;
  font-weight:700;
}
.show-cell p{
  color:var(--text-weak);
  font-size:14px;
  line-height:1.75;
}

.faq-accordion{
  margin-top:40px;
}
.faq-accordion .accordion-item{
  background:rgba(255,255,255,.045);
  border:1px solid rgba(255,255,255,.13);
  border-radius:14px;
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.faq-accordion .accordion-item.is-active{
  border-color:rgba(31,224,169,.4);
  box-shadow:0 12px 32px rgba(0,0,0,.16);
}
.faq-accordion .accordion-title{
  display:block;
  color:#E8F0FE;
  font-size:16px;
  font-weight:700;
  line-height:1.6;
  padding:22px 26px;
  background:transparent;
  border:0;
  min-height:auto;
  transition:color .25s var(--ease);
}
.faq-accordion .accordion-title:before{
  content:"";
  float:right;
  width:26px;
  height:26px;
  border-radius:8px;
  border:1px solid rgba(255,255,255,.22);
  position:relative;
  top:4px;
  color:var(--accent);
  background:
    linear-gradient(var(--accent),var(--accent)) center center/10px 1.5px no-repeat;
}
.faq-accordion .accordion-item.is-active .accordion-title:before{
  background:
    linear-gradient(var(--accent),var(--accent)) center center/10px 1.5px no-repeat,
    linear-gradient(var(--accent),var(--accent)) center center/1.5px 10px no-repeat,
    rgba(255,255,255,.02);
}
.faq-accordion .accordion-title:hover{
  color:var(--accent);
  background:transparent;
}
.faq-accordion .accordion-content{
  padding:0 26px 24px;
  color:var(--text-weak);
  font-size:14px;
  line-height:1.85;
  border-top:0;
}
.faq-accordion .accordion-content p + p{
  margin-top:12px;
}
.faq-accordion .accordion-content strong{
  color:var(--text);
  font-weight:600;
}

.cta-section{
  padding:100px 0;
  position:relative;
  background:
    radial-gradient(circle at 90% 20%,rgba(31,224,169,.12),transparent 24rem),
    radial-gradient(circle at 10% 80%,rgba(50,113,255,.14),transparent 26rem);
  border-top:1px solid rgba(255,255,255,.08);
}
.cta-card{
  position:relative;
  border-radius:24px;
  padding:54px 56px;
  overflow:hidden;
  border:1px solid rgba(255,255,255,.16);
  background:rgba(13,25,44,.8);
  box-shadow:var(--shadow);
}
.cta-card:before{
  content:"";
  position:absolute;
  right:-90px;
  top:-90px;
  width:260px;
  height:260px;
  border-radius:50%;
  background:rgba(31,224,169,.14);
  filter:blur(20px);
}
.cta-card h2{
  position:relative;
  font-size:clamp(26px,3vw,36px);
  line-height:1.3;
  color:#fff;
  font-weight:800;
  margin-bottom:16px;
}
.cta-card p{
  position:relative;
  max-width:680px;
  color:var(--text-weak);
  font-size:15px;
  line-height:1.85;
}
.cta-card .cta-actions{
  position:relative;
  display:flex;
  gap:14px;
  flex-wrap:wrap;
  margin-top:34px;
}

.site-footer{
  background:#050B14;
  border-top:1px solid rgba(255,255,255,.08);
  padding:54px 0 28px;
}
.footer-grid{
  max-width:var(--max-w);
  margin:0 auto;
  padding:0 32px;
  display:grid;
  grid-template-columns:1.4fr .7fr .8fr;
  gap:40px 56px;
}
.footer-brand-name{
  display:flex;
  flex-direction:column;
  font-size:22px;
  font-weight:800;
  color:#fff;
  line-height:1.5;
}
.footer-brand-name small{
  font-size:13px;
  font-weight:500;
  color:var(--text-more);
  letter-spacing:.08em;
  margin-bottom:6px;
}
.footer-brand p{
  margin-top:10px;
  font-size:14px;
  color:var(--text-weak);
  line-height:1.8;
  max-width:400px;
}
.footer-title h4{
  font-size:15px;
  color:#E8F0FE;
  margin-bottom:14px;
  letter-spacing:.02em;
}
.footer-nav li + li,.footer-contact li + li{
  margin-top:8px;
}
.footer-nav a,.footer-contact li{
  font-size:14px;
  color:var(--text-weak);
  transition:color .2s var(--ease);
  line-height:1.7;
}
.footer-nav a:hover{
  color:var(--accent);
}
.footer-copyline{
  max-width:var(--max-w);
  margin:34px auto 0;
  padding:18px 32px 0;
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:8px;
  border-top:1px solid rgba(255,255,255,.08);
  font-size:13px;
  color:var(--text-more);
}
@media (max-width:1279.98px){
  .cat-container{
    padding-left:36px;
    padding-right:36px;
  }
  .feature-line{
    grid-template-columns:76px minmax(0,1fr) 34px;
  }
}
@media (max-width:1023.98px){
  body{
    background-attachment:scroll;
  }
  .mobile-bar{
    display:flex;
    position:fixed;
    top:0;
    left:0;
    right:0;
    height:64px;
    z-index:1100;
    background:rgba(6,12,23,.82);
    backdrop-filter:blur(16px);
    -webkit-backdrop-filter:blur(16px);
    border-bottom:1px solid rgba(255,255,255,.12);
  }
  .mobile-bar-inner{
    width:100%;
    max-width:100%;
    display:flex;
    align-items:center;
    justify-content:space-between;
    padding:0 18px;
  }
  .mobile-brand{
    display:flex;
    flex-direction:column;
    line-height:1.2;
    color:#fff;
    font-size:21px;
    font-weight:800;
  }
  .mobile-brand i{
    font-style:normal;
    font-size:11px;
    letter-spacing:.14em;
    color:#93A8C9;
    font-weight:400;
    margin-top:2px;
  }
  .mobile-brand-accent{
    color:var(--accent);
  }
  .mobile-menu-btn{
    display:flex;
    align-items:center;
    justify-content:center;
    width:44px;
    height:44px;
    border-radius:11px;
    border:1px solid rgba(255,255,255,.16);
    background:rgba(255,255,255,.04);
  }
  .mobile-menu-btn-bar{
    position:relative;
    display:block;
    width:18px;
    height:2px;
    background:#fff;
    border-radius:3px;
    box-shadow:0 -6px 0 #fff,0 6px 0 #fff;
    transition:background .2s var(--ease);
  }
  .mobile-menu-btn:hover .mobile-menu-btn-bar{
    background:var(--accent);
    box-shadow:0 -6px 0 var(--accent),0 6px 0 var(--accent);
  }
  .rail-sidebar{
    width:min(86vw,360px);
    transform:translateX(-105%);
    transition:transform .38s var(--ease);
    box-shadow:24px 0 60px rgba(0,0,0,.45);
    height:100%;
    height:100dvh;
  }
  body.drawer-open .rail-sidebar{
    transform:translateX(0);
  }
  .rail-close-btn{
    display:flex;
  }
  .rail-backdrop{
    display:none;
    position:fixed;
    inset:0;
    z-index:1090;
    background:rgba(3,7,14,.72);
    backdrop-filter:blur(3px);
    -webkit-backdrop-filter:blur(3px);
  }
  body.drawer-open .rail-backdrop{
    display:block;
  }
  .site-shell{
    margin-left:0;
    width:100%;
    padding-top:64px;
  }
  .cat-container{
    padding-left:26px;
    padding-right:26px;
  }
  .stage-section,.stack-section,.pulse-section,.faq-section,.cta-section{
    padding:74px 0;
  }
  .section-head{
    margin-bottom:38px;
  }
  .page-hero{
    padding:64px 0 56px;
  }
}
@media (max-width:639.98px){
  .cat-container{
    padding-left:18px;
    padding-right:18px;
  }
  .page-hero{
    padding:42px 0 44px;
  }
  .hero-actions .btn{
    width:100%;
  }
  .btn{
    padding:0 20px;
    font-size:14px;
  }
  .section-head h2{
    font-size:24px;
  }
  .stage-section,.stack-section,.pulse-section,.faq-section,.cta-section{
    padding:56px 0;
  }
  .feature-line{
    grid-template-columns:52px minmax(0,1fr);
    gap:12px 14px;
    padding:20px 18px;
  }
  .feature-num{
    font-size:32px;
    grid-row:span 3;
  }
  .feature-content{
    grid-column:2;
  }
  .feature-line .line-mark{
    display:none;
  }
  .cta-card{
    padding:32px 22px;
    border-radius:18px;
  }
  .footer-grid{
    grid-template-columns:1fr;
    padding:0 20px;
    gap:32px;
  }
  .footer-copyline{
    padding-left:20px;
    padding-right:20px;
    flex-direction:column;
    gap:4px;
  }
  .show-cell{
    padding:18px;
  }
}

/* roulang page: category3 */
:root{
  --page-bg:#0A111F;
  --panel-bg:#0D192C;
  --glass-bg:rgba(255,255,255,0.045);
  --line:rgba(255,255,255,0.13);
  --line-high:rgba(255,255,255,0.25);
  --main-blue:#3271FF;
  --energy:#1FE0A9;
  --text-hi:#E8F0FE;
  --text-mid:#A6B7D4;
  --text-low:#6E809C;
  --amber:#FFC35A;
  --dark-rail:#060C17;
  --radius-lg:16px;
  --radius-md:10px;
  --radius-sm:8px;
  --trs:all .25s cubic-bezier(.25,.46,.45,.94);
  --shadow-green:0 0 30px rgba(31,224,169,.35);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",system-ui,-apple-system,sans-serif;
  background:var(--page-bg);
  color:var(--text-hi);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  background-image:
    radial-gradient(ellipse 55% 35% at 85% -5%, rgba(31,224,169,0.09), transparent),
    radial-gradient(ellipse 45% 30% at -10% 25%, rgba(50,113,255,0.14), transparent);
  background-repeat:no-repeat;
  min-height:100vh;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:var(--trs)}
ul{list-style:none}
button,input,textarea{font-family:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 23px;position:relative;width:100%}
::selection{background:rgba(31,224,169,.28);color:#fff}
:focus-visible{outline:2px solid var(--energy)!important;outline-offset:3px;border-radius:4px}
h1,h2,h3,h4{font-weight:800;line-height:1.25;color:#F4F9FF}

/* ---------- left rail ---------- */
.rail{
  background:var(--dark-rail);
  position:fixed;
  top:0;left:0;bottom:0;
  width:256px;
  display:flex;flex-direction:column;
  padding:33px 22px 27px;
  z-index:999;
  border-right:1px solid rgba(255,255,255,.05);
}
.rail-brand{
  display:block;
  margin-bottom:10px;
  position:relative;
}
.brand-logo{
  font-size:26px;font-weight:900;
  display:flex;align-items:baseline;gap:8px;
  color:#fff;
  letter-spacing:.5px;
}
.brand-logo .logo-dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--energy);
  display:inline-block;
  box-shadow:0 0 12px rgba(31,224,169,.8);
}
.logo-mark{
  display:inline-block;
  font-size:11px;
  font-weight:600;
  padding:2px 10px;
  border-radius:5px;
  border:1px solid rgba(31,224,169,.45);
  color:var(--energy);
  letter-spacing:1px;
  margin-left:3px;
  vertical-align:3px;
}
.rail-brand small{
  display:block;
  font-size:12px;
  color:var(--text-low);
  font-weight:500;
  margin-top:3px;
  margin-bottom:0;
  letter-spacing:.4px;
}
.rail-nav{flex:1;margin-top:32px}
.rail-lab{
  font-size:11px;
  letter-spacing:1.8px;
  text-transform:uppercase;
  color:#53637D;
  margin-bottom:14px;
  font-weight:600;
  padding-left:4px;
}
.rail-nav a{
  display:flex;align-items:center;
  gap:13px;
  font-size:16px;
  color:var(--text-mid);
  padding:11px 13px;
  border-radius:var(--radius-sm);
  margin-bottom:6px;
  font-weight:500;
  border-left:2px solid transparent;
  transition:var(--trs);
}
.rail-nav a i{
  width:6px;height:6px;border-radius:50%;
  background:#354662;
  transition:var(--trs);
}
.rail-nav a:hover{color:#fff;background:rgba(255,255,255,.035)}
.rail-nav a:hover i{background:var(--energy);box-shadow:0 0 10px rgba(31,224,169,.6)}
.rail-nav a.is-active{
  color:#fff;
  background:rgba(31,224,169,.08);
  border-left:2px solid var(--energy);
  font-weight:600;
}
.rail-nav a.is-active i{background:var(--energy);box-shadow:0 0 10px rgba(31,224,169,.8)}
.rail-contact{
  padding-top:17px;
  border-top:1px solid rgba(255,255,255,.06);
  font-size:13px;
  color:var(--text-low);
}
.rail-contact p{margin-bottom:4px;line-height:1.6}
.rail-contact strong{color:#8fa6c5;font-weight:600;display:block;font-size:12px}

/* ---------- main wrap ---------- */
.main-area{margin-left:256px;min-height:100vh;position:relative;display:flex;flex-direction:column}
.content-main{flex:1}

/* mobile top bar */
.mobile-top{
  display:none;
  position:fixed;
  top:0;left:0;right:0;
  height:64px;
  background:rgba(6,12,23,.85);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  z-index:1000;
  border-bottom:1px solid rgba(255,255,255,.06);
  padding:0 18px;
}
.mobile-top .mobile-logo{
  font-size:20px;
  font-weight:800;
  color:#fff;
  display:flex;align-items:center;gap:7px;
}
.mobile-hamb{
  width:46px;height:42px;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--radius-sm);
  color:var(--energy);
  font-size:19px;
  display:flex;align-items:center;justify-content:center;
  cursor:pointer;
  transition:var(--trs);
}
.mobile-hamb:hover{border-color:rgba(31,224,169,.5);background:rgba(31,224,169,.08)}
.off-canvas.is-open{transform:translateX(0)!important}

/* ---------- hero / small-hero ---------- */
.small-hero{
  position:relative;
  padding:103px 0 70px;
  overflow:hidden;
}
.small-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(115deg, rgba(10,17,31,.55) 30%, rgba(10,17,31,.2) 68%),url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  opacity:.45;
}
.small-hero::after{
  content:"";
  position:absolute;
  right:-100px;top:-100px;
  width:330px;height:330px;
  border-radius:50%;
  background:rgba(31,224,169,.13);
  filter:blur(95px);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2}
.crumb{
  font-size:13px;
  color:var(--text-mid);
  display:flex;align-items:center;gap:7px;
  margin-bottom:21px;
  flex-wrap:wrap;
}
.crumb a{color:var(--text-mid)}
.crumb a:hover{color:var(--energy)}
.crumb i{font-size:10px;color:#53637D;font-style:normal}
.crumb .now{color:var(--text-low)}
.small-hero h1{
  font-size:clamp(30px, 4.6vw, 47px);
  font-weight:850;
  letter-spacing:.4px;
  line-height:1.18;
  margin-bottom:14px;
}
.small-hero h1 .green{
  background:linear-gradient(135deg,#1FE0A9,#a8ffdf);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-sub{
  font-size:17px;
  color:var(--text-mid);
  max-width:630px;
  line-height:1.7;
}

/* section common */
.section-block{padding:64px 0 86px;position:relative}
.section-title-row{
  display:flex;align-items:flex-end;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:16px;
  margin-bottom:34px;
}
.section-title{font-size:clamp(24px,3vw,31px);font-weight:800;position:relative;padding-left:18px;letter-spacing:.3px}
.section-title::before{
  content:"";
  position:absolute;
  left:0;top:7px;bottom:7px;
  width:5px;border-radius:4px;
  background:var(--energy);
}
.section-more{
  font-size:14px;
  color:var(--text-mid);
  display:inline-flex;align-items:center;gap:5px;
  transition:var(--trs);
}
.section-more:hover{color:var(--energy);gap:10px}

/* panel btn */
.btn-energy{
  height:48px;
  padding:0 26px;
  background:var(--energy);
  border:none;
  color:#061018;
  font-weight:700;
  font-size:16px;
  border-radius:var(--radius-md);
  cursor:pointer;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  transition:var(--trs);
}
.btn-energy:hover{
  background:#32eeba;
  transform:translateY(-2px);
  box-shadow:0 6px 28px rgba(31,224,169,.28);
  color:#061018;
}
.btn-ghost{
  height:46px;
  padding:0 24px;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.2);
  color:#DCE6F5;
  font-weight:600;
  border-radius:var(--radius-md);
  display:inline-flex;
  align-items:center;
  gap:9px;
  cursor:pointer;
  transition:var(--trs);
}
.btn-ghost:hover{border-color:rgba(31,224,169,.6);color:var(--energy)}

/* data bar */
.data-band{
  background:rgba(13,25,44,.78);
  backdrop-filter:blur(16px);
  border-top:1px solid rgba(255,255,255,.06);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.data-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:37px;
}
.data-cell{position:relative;padding:33px 0}
.data-cell + .data-cell::before{
  content:"";
  position:absolute;
  left:-27px;top:25%;bottom:25%;
  width:1px;background:rgba(255,255,255,.08);
}
.data-label{font-size:13px;color:var(--text-mid);margin-bottom:9px;font-weight:500;letter-spacing:.5px;text-transform:uppercase}
.data-num{
  font-size:clamp(38px,4.3vw,54px);
  font-weight:850;
  line-height:1.15;
  color:#fff;
  font-variant-numeric:tabular-nums;
  letter-spacing:-1px;
}
.data-num em{font-style:normal;color:var(--energy);font-size:.76em;margin-left:2px}
.data-desc{font-size:14px;color:var(--text-low);margin-top:8px}

/* focus grid group */
.two-col-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:34px;
  align-items:stretch;
}
.focus-card{
  background:var(--glass-bg);
  backdrop-filter:blur(15px);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:0;
  overflow:hidden;
  position:relative;
  transition:transform .2s,border-color .35s,box-shadow .35s;
  background-image:linear-gradient(rgba(255,255,255,.02),rgba(255,255,255,.02));
}
.focus-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.28),transparent);
}
.focus-card:hover{
  transform:translateY(-4px);
  border-color:rgba(31,224,169,.3);
  box-shadow:0 18px 45px rgba(0,0,0,.25);
}
.focus-card-im{
  position:relative;
  aspect-ratio:16/10;
  overflow:hidden;
  margin:14px;
  border-radius:11px;
}
.focus-card-im img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .5s;
}
.focus-card:hover .focus-card-im img{transform:scale(1.035)}
.focus-card-im .tag-mini{
  position:absolute;left:15px;bottom:14px;
  background:rgba(10,17,31,.78);
  backdrop-filter:blur(9px);
  border:1px solid rgba(31,224,169,.4);
  padding:4px 14px;
  border-radius:8px;
  color:var(--energy);font-size:12px;font-weight:600;
}
.focus-card-body{padding:0 21px 23px}
.focus-card-body h3{font-size:19px;font-weight:700;margin-bottom:7px;letter-spacing:.2px}
.focus-card-body h3 a:hover{color:var(--energy)}
.focus-card-body p{
  color:var(--text-mid);font-size:14px;line-height:1.65;
  margin-bottom:11px;
}
.focus-link{
  color:var(--energy);
  font-size:14px;
  font-weight:600;
  display:inline-flex;align-items:center;gap:6px;
  opacity:.75;
  transition:var(--trs);
}
.focus-card:hover .focus-link{opacity:1;gap:10px}

/* coverage segment (scenes) */
.seg-split{
  display:grid;
  grid-template-columns:.82fr 1.18fr;
  gap:72px;
  align-items:center;
}
.seg-l .eyebrow{
  color:var(--energy);
  font-size:14px;
  font-weight:650;
  letter-spacing:1px;
  margin-bottom:8px;
  display:block;
}
.seg-l h2{font-size:clamp(21px,2.5vw,27px);line-height:1.35;margin:0 0 16px;padding-left:0}
.seg-l h2::before{display:none}
.seg-l > p{color:var(--text-mid);margin-bottom:28px;font-size:15px}
.cover-badge{
  border-radius:var(--radius-lg);
  overflow:hidden;
  position:relative;
  height:258px;
}
.cover-badge img{width:100%;height:100%;object-fit:cover}
.cover-badge .overlay-note{
  position:absolute;right:11px;bottom:11px;
  background:rgba(6,12,23,.72);
  backdrop-filter:blur(8px);
  padding:7px 15px;
  border-radius:8px;
  border:1px solid rgba(255,255,255,.18);
  font-size:12px;color:var(--text-hi);
  letter-spacing:.4px;
}
.scene-list{counter-reset:sc}
.scene-item{
  display:flex;
  gap:19px;
  padding:22px 0 24px;
  border-bottom:1px solid rgba(255,255,255,.07);
  transition:background .25s;
}
.scene-item:last-child{border-bottom:none}
.scene-item .num{
  font-size:23px;
  font-weight:850;
  color:rgba(31,224,169,.35);
  line-height:1.3;
}
.scene-item:hover .num{color:var(--energy)}
.scene-item h3{font-size:18px;font-weight:700;margin:0 0 6px}
.scene-item h3 a:hover{color:var(--energy)}
.scene-item p{color:var(--text-mid);font-size:14px;line-height:1.6;max-width:75%}

/* report card / zigzag */
.zigzag-list{display:flex;flex-direction:column;gap:32px}
.zz-item{
  display:grid;
  grid-template-columns:.9fr 1.1fr;
  background:var(--glass-bg);
  backdrop-filter:blur(14px);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
  transition:var(--trs);
}
.zz-item:hover{border-color:rgba(31,224,169,.31);box-shadow:0 14px 34px rgba(0,0,0,.16)}
.zz-item.flip .zz-img{order:2}
.zz-img{position:relative;overflow:hidden;min-height:187px}
.zz-img img{width:100%;height:100%;object-fit:cover}
.zz-text{padding:27px 29px;display:flex;flex-direction:column;justify-content:center}
.zz-text .zz-tag{
  display:inline-block;
  font-size:12px;
  background:rgba(31,224,169,.13);
  color:var(--energy);
  border-radius:7px;
  padding:3px 12px;
  margin-bottom:12px;
  width:max-content;
  font-weight:600;
}
.zz-text h3{font-size:20px;margin-bottom:8px;color:#fff}
.zz-text p{color:var(--text-mid);font-size:14px;line-height:1.65;margin-bottom:10px}
.zz-text .note-line{font-size:13px;color:var(--text-low)}

/* faq */
.accordion-dark{border:none;background:transparent;max-width:920px}
.accordion-dark .accordion-item{
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.1);
  border-radius:14px;
  margin-bottom:11px;
  overflow:hidden;
  box-shadow:none;
}
.accordion-dark .accordion-item:hover{border-color:rgba(31,224,169,.28)}
.accordion-dark .accordion-title{
  background:transparent;
  border:none;
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:17px;
  padding:20px 25px 20px 23px;
  line-height:1.5;
  position:relative;
  cursor:pointer;
}
.accordion-dark .accordion-title:hover,
.accordion-dark .accordion-title:focus{
  background:rgba(255,255,255,.025);
  color:#fff;
}
.accordion-dark .accordion-title::after{
  content:"+";
  font-size:25px;
  color:var(--energy);
  line-height:1;
  font-weight:400;
  order:2;
  position:static;
  transform:none;
  margin-left:16px;
  transition:var(--trs);
}
.accordion-dark .accordion-item.is-active > .accordion-title{
  color:#fff;
  background:rgba(31,224,169,.04);
}
.accordion-dark .accordion-item.is-active > .accordion-title::after{
  content:"−";
  color:var(--energy);
}
.accordion-dark .accordion-content{
  background:transparent;
  border:none;
  padding:0 27px 25px 25px;
}
.accordion-dark .accordion-content p{
  color:#B6C6DE;
  font-size:15px;
  line-height:1.75;
  margin-bottom:0;
  border-top:1px solid rgba(255,255,255,.07);
  padding-top:16px;
}

/* CTA area */
.cta-panel{
  background:rgba(255,255,255,.045);
  border:1px solid rgba(255,255,255,.12);
  border-radius:22px;
  padding:65px 66px;
  position:relative;
  overflow:hidden;
}
.cta-panel::before{
  content:"";
  position:absolute;
  right:-75px;top:-75px;
  width:280px;height:280px;
  border-radius:50%;
  background:rgba(50,113,255,.16);
  filter:blur(60px);
}
.cta-panel::after{
  content:"";
  position:absolute;left:-60px;bottom:-60px;
  width:180px;height:180px;
  border-radius:50%;
  background:rgba(31,224,169,.12);
  filter:blur(56px);
}
.cta-inner{position:relative;z-index:2;display:flex;justify-content:space-between;gap:40px;align-items:center;flex-wrap:wrap}
.cta-left{max-width:62%}
.cta-title{font-size:clamp(23px,2.6vw,30px);line-height:1.4;margin-bottom:12px}
.cta-desc{color:var(--text-mid);font-size:15px}
.cta-link{display:inline-flex;align-items:center;gap:6px}

/* footer */
.site-footer{
  background:#050B14;
  border-top:1px solid rgba(255,255,255,.055);
  padding:56px 0 30px;
  margin-left:256px;
}
.footer-grid{
  max-width:1220px;
  margin:0 auto;
  padding:0 42px;
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr;
  gap:45px;
}
.footer-brand-name{
  font-size:19px;
  font-weight:800;
  display:flex;flex-direction:column;
  gap:2px;margin-bottom:9px;
}
.footer-brand-name small{font-size:12px;color:var(--energy);font-weight:500;letter-spacing:.8px}
.footer-brand .site-desc{color:var(--text-low);font-size:13px;line-height:1.8}
.footer-title h4{font-size:15px;color:#DAE6F8;margin-bottom:17px;position:relative;font-weight:700}
.footer-title h4::after{content:"";display:block;width:18px;height:2px;border-radius:9px;background:var(--energy);margin-top:7px}
.footer-nav li,.footer-contact li{margin-bottom:9px}
.footer-nav li a{color:var(--text-mid);font-size:14px}
.footer-nav li a:hover{color:var(--energy);padding-left:5px}
.footer-contact li{color:var(--text-mid);font-size:14px;list-style:none;padding-left:0}
.footer-copyline{
  max-width:1220px;
  margin:38px auto 0;
  padding:21px 42px 0;
  border-top:1px solid rgba(255,255,255,.06);
  display:flex;justify-content:space-between;
  flex-wrap:wrap;gap:8px;
  font-size:13px;color:var(--text-low);
}

/* form */
.contact-form input,.contact-form textarea{
  background:rgba(255,255,255,.035)!important;
  border:1px solid rgba(255,255,255,.16)!important;
  border-radius:9px;
  color:#fff!important;
  height:48px;
  padding:0 17px;
  font-size:15px;
  transition:all .25s;
  box-shadow:none!important;
}
.contact-form textarea{height:130px;padding-top:12px;resize:vertical}
.contact-form input::placeholder,.contact-form textarea::placeholder{color:#7A8CA9;font-size:14px}
.contact-form input:focus,.contact-form textarea:focus{
  background:rgba(255,255,255,.055)!important;
  border-color:rgba(31,224,169,.65)!important;
  outline:none;
  box-shadow:0 0 0 3px rgba(31,224,169,.18)!important;
}
.form-title{font-size:clamp(22px,2.2vw,27px);margin-bottom:17px}
.form-note{color:var(--text-mid);font-size:14px;margin-bottom:22px}
.field-label{font-size:13px;color:var(--text-mid);display:block;margin-bottom:7px;letter-spacing:.2px}
.contact-form input.point-error,.contact-form textarea.point-error{border-color:rgba(255,120,120,.7)!important}

/* scroll indicator */
.scroll-cue{
  position:absolute;bottom:22px;left:50%;transform:translateX(-50%);
  width:22px;height:34px;
  border:1px solid rgba(255,255,255,.27);
  border-radius:12px;
  display:flex;justify-content:center;
  align-items:flex-start;
  padding-top:5px;
  transition:var(--trs);
}
.scroll-cue::after{
  content:"";
  width:2px;height:7px;
  background:var(--energy);
  border-radius:2px;
  animation:cueMove 2s infinite;
}
@keyframes cueMove{0%{opacity:1;transform:translateY(0)}75%{opacity:.2;transform:translateY(10px)}100%{opacity:0;transform:translateY(20px)}}

/* foundation grid gap supplement */
.off-canvas{margin:0!important;max-width:269px!important}
.js-off-canvas-overlay{opacity:.75}

/* responsive */
@media screen and (max-width:1023px){
  .rail{display:none}
  .mobile-top{display:flex;align-items:center;justify-content:space-between}
  .main-area{margin-left:0;margin-top:64px}
  .site-footer{margin-left:0}
  .off-canvas{display:block;background:var(--dark-rail)!important}
  .off-canvas .mobile-menu-brand{margin-bottom:20px;padding-top:6px;display:block}
  .off-canvas .mobile-menu-brand .brand-logo{font-size:21px}
  .off-canvas .mobile-menu-brand small{color:var(--text-low);font-size:12px}
  .data-grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .data-cell + .data-cell::before{display:none}
  .data-cell{padding:24px 0}
  .footer-grid{padding:0 24px;grid-template-columns:1fr;gap:28px}
  .footer-copyline{padding:21px 24px 0;margin-top:32px}
  .cta-left{max-width:100%}
}

@media screen and (max-width:768px){
  body{font-size:15px}
  .small-hero{padding:72px 0 52px}
  .two-col-grid{grid-template-columns:1fr}
  .zz-item{grid-template-columns:1fr}
  .zz-item.flip .zz-img{order:0}
  .seg-split{grid-template-columns:1fr;gap:35px}
  .data-grid{grid-template-columns:repeat(2,1fr);gap:0 30px}
  .section-block{padding:45px 0 60px}
  .cta-panel{padding:34px 19px 42px}
  .cta-left{max-width:100%}
}

@media screen and (max-width:520px){
  .container{padding:0 17px}
  .data-grid{grid-template-columns:1fr 1fr;column-gap:18px}
  .data-num{font-size:34px}
  .small-hero h1{font-size:26px;line-height:1.2}
  .small-hero p{font-size:14px}
  .footer-brand p{font-size:13px}
  .footer-copyline{justify-content:center;text-align:center}
  .footer-copyline span{display:block;flex-basis:100%}
  .btn-energy,.btn-ghost{width:100%;text-align:center;justify-content:center}
  .section-title-row{margin-bottom:23px}
}

@supports (display:flex) and (gap:0px){
  .footer-nav li,.footer-contact li{margin-bottom:8px}
}

/* prevent foundation default ugly */
.accordion-dark .accordion-title:focus{border:none;box-shadow:none}
.accordion-dark .accordion-item.is-active{border-color:rgba(31,224,169,.3)}
.off-canvas{overflow-y:auto;-webkit-overflow-scrolling:touch}
.off-canvas.is-transition-push{box-shadow:none}
.join-bar{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:25px;
}
@media screen and (max-width:670px){
  .join-bar{grid-template-columns:1fr}
}
.list-line{margin-top:15px}
.list-line .line-item{
  font-size:14px;
  color:var(--text-mid);
  padding:9px 0;
  border-bottom:1px dashed rgba(255,255,255,.08);
  display:flex;align-items:center;justify-content:space-between;
  gap:12px;
}
.list-line .line-item:last-child{border-bottom:none}
.list-line .line-item:hover{color:#E4EDFB}
.list-line .line-dot{color:var(--energy);font-size:12px;margin-right:12px}
.list-line .line-meta{color:var(--text-low);font-size:13px}
.hide-on-desktop{display:none}
@media screen and (max-width:1023px){.hide-on-desktop{display:block}}

/* breadcrumb dummy */
.crumb i.fa-angle-right{color:#53637D}

/* roulang page: category2 */
:root {
    --page-bg: #0A111F;
    --panel-bg: #0D192C;
    --deep-bg: #060C17;
    --glass: rgba(255, 255, 255, 0.045);
    --glass-border: rgba(255, 255, 255, 0.13);
    --hairline: rgba(255, 255, 255, 0.09);
    --brand: #3271FF;
    --energy: #1FE0A9;
    --amber: #FFC35A;
    --text-main: #E8F0FE;
    --text-secondary: #A6B7D4;
    --text-muted: #6E809C;
    --radius-xl: 20px;
    --radius-lg: 16px;
    --radius-md: 10px;
    --radius-sm: 8px;
    --shadow-energy: 0 0 30px rgba(31,224,169,0.28);
    --shadow-card: 0 18px 50px rgba(0,0,0,0.26);
  }

  html {
    box-sizing: border-box;
    scroll-behavior: smooth;
  }

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

  body {
    margin: 0;
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
    background:
      radial-gradient(circle at 10% 0%, rgba(50, 113, 255, 0.19), transparent 32rem),
      radial-gradient(circle at 95% 22%, rgba(31, 224, 169, 0.10), transparent 30rem),
      radial-gradient(circle at 55% 100%, rgba(50, 113, 255, 0.11), transparent 38rem),
      var(--page-bg);
    color: var(--text-main);
    font-size: 16px;
    line-height: 1.75;
    min-height: 100vh;
  }

  body.no-scroll {
    overflow: hidden;
  }

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

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

  ul,
  ol {
    margin: 0;
    padding: 0;
    list-style: none;
  }

  h1, h2, h3, h4, p, figure, blockquote {
    margin: 0;
  }

  button,
  input,
  textarea {
    font-family: inherit;
    font-size: 1rem;
  }

  :focus-visible {
    outline: 2px solid var(--energy) !important;
    outline-offset: 3px;
    border-radius: 6px;
  }

  .container {
    max-width: 1200px;
    margin-inline: auto;
    padding-inline: clamp(20px, 4vw, 42px);
  }

  .section-gap {
    padding-block: clamp(56px, 7vw, 96px);
  }

  .section-head {
    margin-bottom: clamp(28px, 4.5vw, 54px);
    max-width: 820px;
  }

  .section-head .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    letter-spacing: 0.14em;
    color: var(--energy);
    margin-bottom: 14px;
  }

  .section-head .eyebrow::before {
    content: "";
    width: 22px;
    height: 2px;
    background: var(--energy);
    display: inline-block;
    border-radius: 99px;
  }

  .section-head h2 {
    font-size: clamp(27px, 3vw, 36px);
    line-height: 1.24;
    font-weight: 800;
    color: #F4F8FF;
    margin-bottom: 16px;
    padding-left: 18px;
    border-left: 4px solid var(--energy);
  }

  .section-head h3 {
    font-size: 20px;
    font-weight: 650;
    color: var(--text-main);
  }

  .section-head p,
  .section-intro {
    color: var(--text-secondary);
    font-size: 16px;
    max-width: 720px;
  }

  .hidden {
    display: none !important;
  }

  .is-active,
  .is-current {
    font-weight: 600;
  }

  .site-shell {
    min-height: 100vh;
    width: 100%;
  }

  /* ---------- Left vertical rail ---------- */
  .site-rail {
    display: none;
  }

  @media screen and (min-width: 1024px) {
    .site-rail {
      position: fixed;
      top: 0;
      left: 0;
      z-index: 70;
      width: 264px;
      height: 100vh;
      background: var(--deep-bg);
      border-right: 1px solid rgba(255, 255, 255, 0.07);
      display: flex;
      flex-direction: column;
      padding: 28px 20px 24px;
    }

    .page-wrap {
      margin-left: 264px;
      min-height: 100vh;
    }
  }

  .rail-brand {
    padding: 6px 6px 16px;
  }

  .rail-brand-name {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
    font-size: 25px;
    font-weight: 850;
    letter-spacing: 0.02em;
    color: #FFFFFF;
  }

  .rail-brand-name small {
    font-size: 13px;
    font-weight: 400;
    color: var(--energy);
    letter-spacing: 0.08em;
    margin-top: 7px;
  }

  .rail-tag {
    margin-top: 12px;
    display: inline-flex;
    align-items: center;
    gap: 7px;
    font-size: 12px;
    color: var(--amber);
    background: rgba(255, 195, 90, 0.09);
    border: 1px solid rgba(255, 195, 90, 0.18);
    border-radius: 99px;
    padding: 3px 12px 3px 8px;
    width: fit-content;
  }

  .rail-tag i {
    width: 6px;
    height: 6px;
    border-radius: 99px;
    background: var(--amber);
    display: block;
  }

  .rail-line {
    height: 1px;
    background: linear-gradient(90deg, rgba(31,224,169,0.5), rgba(255,255,255,0.05), transparent);
    margin: 20px 8px 24px;
  }

  .rail-nav {
    display: flex;
    flex-direction: column;
    gap: 5px;
    width: 100%;
  }

  .rail-lab {
    font-size: 12px;
    color: var(--text-muted);
    letter-spacing: 0.16em;
    text-transform: uppercase;
    padding: 0 10px;
    margin-bottom: 10px;
  }

  .rail-nav a {
    display: flex;
    align-items: center;
    gap: 13px;
    padding: 13px 14px;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 15px;
    border: 1px solid transparent;
    transition: color .23s, background .23s, border-color .23s, transform .23s;
  }

  .rail-nav a i {
    width: 3px;
    height: 18px;
    border-radius: 99px;
    background: transparent;
    transition: background .23s;
  }

  .rail-nav a:hover {
    color: #FFFFFF;
    background: rgba(255, 255, 255, 0.045);
  }

  .rail-nav a:hover i {
    background: var(--energy);
  }

  .rail-nav a.is-active {
    background: rgba(31, 224, 169, 0.10);
    border-color: rgba(31, 224, 169, 0.17);
    color: #FFFFFF;
  }

  .rail-nav a.is-active i {
    background: var(--energy);
    box-shadow: 0 0 14px rgba(31, 224, 169, 0.7);
  }

  .rail-foot {
    margin-top: auto;
    padding: 20px 8px 0;
    border-top: 1px solid rgba(255,255,255,0.05);
    font-size: 12px;
    color: var(--text-muted);
    display: flex;
    flex-direction: column;
    gap: 7px;
  }

  .rail-foot strong {
    color: var(--text-secondary);
    font-weight: 500;
  }

  /* ---------- Mobile top nav ---------- */
  .mobile-header {
    position: sticky;
    top: 0;
    z-index: 80;
    background: rgba(6, 12, 23, 0.86);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    display: block;
  }

  @media screen and (min-width: 1024px) {
    .mobile-header {
      display: none;
    }
  }

  .mobile-header-inner {
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 18px;
  }

  .mobile-header .brand-logo {
    display: flex;
    flex-direction: column;
    font-size: 20px;
    font-weight: 800;
    color: #FFFFFF;
    line-height: 1.2;
  }

  .mobile-header .brand-logo small {
    font-size: 11px;
    color: var(--energy);
    letter-spacing: 0.05em;
    margin-top: 2px;
  }

  .nav-trigger {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.13);
    border-radius: 10px;
    width: 46px;
    height: 40px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: #FFFFFF;
    transition: border-color .2s, background .2s;
  }

  .nav-trigger:hover {
    background: rgba(31,224,169,0.13);
    border-color: rgba(31,224,169,0.35);
  }

  .nav-trigger-lines {
    display: inline-flex;
    flex-direction: column;
    gap: 5px;
    width: 18px;
  }

  .nav-trigger-lines span {
    height: 2px;
    border-radius: 3px;
    background: var(--text-main);
  }

  .mobile-nav-panel {
    display: none;
    border-top: 1px solid rgba(255,255,255,0.06);
    background: rgba(6, 12, 23, 0.95);
    padding: 12px 18px 22px;
    box-shadow: 0 18px 35px rgba(0,0,0,0.3);
  }

  .mobile-nav-panel.is-open {
    display: flex;
    flex-direction: column;
    gap: 5px;
  }

  .mobile-nav-panel a {
    display: block;
    padding: 13px 14px;
    border-radius: 10px;
    color: var(--text-secondary);
    font-size: 15px;
    border: 1px solid transparent;
    transition: color .2s, background .2s;
  }

  .mobile-nav-panel a:hover {
    color: #FFFFFF;
    background: rgba(255,255,255,0.045);
  }

  .mobile-nav-panel a.is-active {
    color: #FFFFFF;
    background: rgba(31,224,169,0.11);
    border-color: rgba(31,224,169,0.19);
    font-weight: 600;
  }

  /* ---------- Global buttons ---------- */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    height: 48px;
    padding: 0 26px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 700;
    text-align: center;
    cursor: pointer;
    line-height: 1;
    border: 1px solid transparent;
    transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease, color .2s ease;
    will-change: transform;
  }

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

  .btn-primary {
    background: var(--energy);
    color: #061018;
    box-shadow: 0 10px 24px rgba(31, 224, 169, 0.18);
  }

  .btn-primary:hover {
    box-shadow: 0 0 32px rgba(31, 224, 169, 0.32);
    background: #35EDBB;
    transform: translateY(-2px);
    color: #04121D;
  }

  .btn-ghost {
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(255, 255, 255, 0.22);
    color: var(--text-main);
  }

  .btn-ghost:hover {
    border-color: rgba(31,224,169,0.76);
    color: var(--energy);
    background: rgba(31,224,169,0.07);
    transform: translateY(-2px);
  }

  .btn-sm {
    height: 38px;
    padding: 0 18px;
    font-size: 13px;
  }

  /* ---------- Cat hero ---------- */
  .cat-hero {
    position: relative;
    min-height: 520px;
    display: flex;
    align-items: center;
    padding-block: 80px 58px;
    background-image:
      linear-gradient(90deg, rgba(6, 12, 23, 0.88) 0%, rgba(6, 12, 23, 0.66) 45%, rgba(6, 12, 23, 0.22) 100%),
      url("/assets/images/backpic/back-2.webp");
    background-position: center center;
    background-size: cover;
    background-repeat: no-repeat;
    isolation: isolate;
    overflow: hidden;
  }

  .cat-hero::after {
    content: "";
    position: absolute;
    right: -80px;
    top: -80px;
    width: 360px;
    height: 360px;
    background: radial-gradient(circle, rgba(31,224,169,0.16), transparent 68%);
    z-index: -1;
    pointer-events: none;
  }

  .cat-hero-inner {
    max-width: 780px;
    padding-inline: clamp(20px, 4vw, 42px);
  }

  .crumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 26px;
  }

  .crumb a {
    color: var(--text-secondary);
    transition: color .2s;
  }

  .crumb a:hover {
    color: var(--energy);
  }

  .crumb-sep {
    opacity: 0.5;
  }

  .crumb .crumb-current {
    color: var(--text-main);
  }

  .hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 195, 90, 0.1);
    border: 1px solid rgba(255,195,90,0.2);
    color: var(--amber);
    font-size: 12px;
    letter-spacing: 0.08em;
    padding: 4px 14px 4px 10px;
    border-radius: 99px;
    margin-bottom: 20px;
  }

  .hero-tag i {
    display: block;
    width: 6px;
    height: 6px;
    border-radius: 10px;
    background: var(--amber);
  }

  .cat-hero h1 {
    font-size: clamp(34px, 5vw, 48px);
    line-height: 1.15;
    letter-spacing: -0.01em;
    color: #FFFFFF;
    font-weight: 850;
    margin-bottom: 22px;
  }

  .cat-hero h1 em {
    font-style: normal;
    background: linear-gradient(120deg, #FFFFFF 20%, var(--energy) 90%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }

  .cat-hero-sub {
    font-size: 17px;
    color: var(--text-secondary);
    max-width: 620px;
    margin-bottom: 30px;
  }

  .cat-hero-sub strong {
    color: var(--text-main);
    font-weight: 600;
  }

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

  /* ---------- Image / cover panel ---------- */
  .cover-figure-main {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid rgba(255,255,255,0.09);
    box-shadow: var(--shadow-card);
    background: var(--panel-bg);
    transform: translateZ(0);
  }

  .cover-figure-main img {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    transition: transform .45s ease;
  }

  .cover-figure-main figcaption {
    position: absolute;
    left: 16px;
    bottom: 16px;
    background: rgba(6,12,23,0.64);
    backdrop-filter: blur(12px);
    padding: 9px 16px;
    border-radius: 99px;
    border: 1px solid rgba(255,255,255,0.13);
    color: #FFFFFF;
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 9px;
  }

  .cover-figure-main figcaption span {
    width: 8px;
    height: 8px;
    border-radius: 99px;
    background: var(--energy);
  }

  .cover-figure-main:hover img {
    transform: scale(1.025);
  }

  .cat-panel-copy {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: clamp(22px, 3.5vw, 38px);
    backdrop-filter: blur(16px);
    box-shadow: var(--shadow-card);
    position: relative;
  }

  .cat-panel-copy::before {
    content: "";
    display: block;
    height: 2px;
    border-radius: 99px;
    width: 64px;
    background: linear-gradient(90deg, var(--energy), transparent);
    margin-bottom: 20px;
  }

  .cat-panel-copy h3 {
    font-size: clamp(22px, 2.4vw, 29px);
    line-height: 1.32;
    color: #FFFFFF;
    font-weight: 800;
    margin-bottom: 16px;
  }

  .cat-panel-copy p {
    color: var(--text-secondary);
    margin-bottom: 24px;
  }

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

  .check-list li {
    padding-left: 30px;
    position: relative;
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.7;
  }

  .check-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    top: 2px;
    width: 20px;
    height: 20px;
    border-radius: 99px;
    background: rgba(31,224,169,0.14);
    color: var(--energy);
    font-size: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(31,224,169,0.16);
  }

  .check-list li b {
    color: #F2F6FF;
    font-weight: 600;
  }

  /* segment wrap */
  .split-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 28px;
    align-items: center;
  }

  @media screen and (min-width: 768px) {
    .split-grid {
      grid-template-columns: 1fr 1.05fr;
      gap: 36px;
    }
  }

  /* ---------- Observe steps list ---------- */
  .observe-stack {
    display: flex;
    flex-direction: column;
    gap: 16px;
  }

  .observe-stack .observe-item {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 20px;
    align-items: center;
    background: rgba(255,255,255,0.028);
    border: 1px solid rgba(255,255,255,0.09);
    border-radius: var(--radius-lg);
    padding: clamp(18px, 3vw, 28px);
    transition: border-color .25s, background .25s, box-shadow .25s;
  }

  .observe-stack .observe-item:hover {
    border-color: rgba(31,224,169,0.3);
    background: rgba(31,224,169,0.05);
    box-shadow: 0 0 0 2px rgba(31,224,169,0.05);
  }

  .observe-item .step {
    font-size: 14px;
    font-weight: 700;
    color: var(--energy);
    letter-spacing: 0.06em;
    border: 1px solid rgba(31,224,169,0.25);
    border-radius: 999px;
    padding: 7px 13px;
    width: fit-content;
    background: rgba(31,224,169,0.1);
  }

  .observe-body h3 {
    font-size: 19px;
    color: #FFFFFF;
    font-weight: 650;
    margin-bottom: 7px;
  }

  .observe-body p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.7;
  }

  .observe-arrow {
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 99px;
    background: rgba(255,255,255,0.05);
    color: var(--text-muted);
    font-size: 20px;
    flex-shrink: 0;
    transition: all .25s;
  }

  .observe-arrow:hover {
    color: var(--energy);
    background: rgba(31,224,169,0.12);
    transform: translateX(3px);
  }

  @media (max-width: 640px) {
    .observe-stack .observe-item {
      grid-template-columns: 1fr;
      gap: 10px;
    }

    .observe-arrow {
      display: none;
    }
  }

  /* ---------- Stats section ---------- */
  .fields-band {
    background:
      radial-gradient(ellipse at 20% 0%, rgba(31,224,169,0.12), transparent 46rem),
      linear-gradient(135deg, rgba(13,25,44,0.78), rgba(6,12,23,0.92));
    border-block: 1px solid rgba(255,255,255,0.09);
    border-radius: 0;
    padding-block: 48px;
  }

  .fields-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px clamp(20px, 4vw, 48px);
  }

  @media (min-width: 900px) {
    .fields-grid {
      grid-template-columns: repeat(4, 1fr);
    }
  }

  .field-item {
    padding-left: 1px;
    position: relative;
    border-top: 1px solid rgba(255,255,255,0.16);
    padding-top: 22px;
  }

  .field-item .field-label {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 8px;
    letter-spacing: 0.05em;
  }

  .field-item .field-num {
    display: flex;
    align-items: baseline;
    gap: 4px;
    font-size: clamp(39px, 4.4vw, 64px);
    font-weight: 800;
    color: var(--energy);
    line-height: 1.15;
    font-variant-numeric: tabular-nums;
  }

  .field-item .field-num span {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-muted);
  }

  .field-item .field-desc {
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 6px;
  }

  .field-item::after {
    content: "";
    position: absolute;
    left: 0;
    top: -1px;
    width: 26px;
    height: 2px;
    background: var(--energy);
  }

  /* ---------- Explore cards ---------- */
  .card-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 18px;
  }

  @media screen and (min-width: 640px) and (max-width: 1023px) {
    .card-grid {
      grid-template-columns: 1fr 1fr;
    }
  }

  @media screen and (min-width: 1024px) {
    .card-grid {
      grid-template-columns: repeat(4, 1fr);
    }
  }

  .explore-card {
    position: relative;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 25px 22px 22px;
    transition: border-color .3s, box-shadow .3s, transform .25s;
    overflow: hidden;
    min-height: 190px;
  }

  .explore-card::before {
    content: "";
    position: absolute;
    inset: 0 0 auto 0;
    height: 1px;
    background: rgba(255,255,255,0.13);
    transition: background .25s;
  }

  .explore-card:hover {
    border-color: rgba(31,224,169,0.29);
    box-shadow: 0 12px 38px rgba(0,0,0,0.24);
    transform: translateY(-3px);
  }

  .explore-card .card-index {
    font-size: 12px;
    color: var(--text-muted);
    border: 1px solid rgba(255,255,255,0.1);
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 9px;
    margin-bottom: 18px;
  }

  .explore-card h3 {
    font-size: 18px;
    color: #F4F8FF;
    font-weight: 650;
    margin-bottom: 11px;
    letter-spacing: 0.01em;
  }

  .explore-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.72;
    margin-bottom: 20px;
  }

  .card-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    color: var(--energy);
    opacity: 0.8;
    transition: opacity .2s, gap .2s;
  }

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

  /* ---------- Horizontal divider quote strip ---------- */
  .quote-strip {
    display: flex;
    gap: 24px;
    align-items: center;
    flex-wrap: wrap;
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.08);
    border-left: 3px solid var(--energy);
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
    padding: 26px 30px;
    margin-block: 34px 0;
  }

  .quote-strip .quote-mark {
    font-size: clamp(48px, 5vw, 80px);
    line-height: 1;
    color: rgba(31,224,169,0.36);
    font-family: Georgia, "Times New Roman", serif;
    width: 48px;
    flex-shrink: 0;
  }

  .quote-strip blockquote {
    font-size: 17px;
    color: var(--text-main);
    font-weight: 400;
    line-height: 1.8;
  }

  .quote-strip blockquote span {
    color: var(--energy);
  }

  /* ---------- Accordion FAQ ---------- */
  .faq-shell {
    display: flex;
    flex-direction: column;
    gap: 14px;
  }

  .custom-accordion .accordion-item {
    background: rgba(255,255,255,0.035);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: border-color .25s;
  }

  .custom-accordion .accordion-item.is-active {
    border-color: rgba(31,224,169,0.27);
  }

  .custom-accordion .accordion-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 22px 18px;
    font-size: 16px;
    font-weight: 600;
    color: #EAF1FF;
    background: transparent;
    border: 0;
    line-height: 1.5;
    transition: color .2s, background .25s;
  }

  .custom-accordion .accordion-title:hover,
  .custom-accordion .accordion-item.is-active .accordion-title {
    color: var(--energy);
    background: rgba(31,224,169,0.045);
  }

  .custom-accordion .accordion-title::before,
  .custom-accordion .accordion-title::after {
    content: unset;
  }

  .custom-accordion .accordion-title .aq-icon {
    flex-shrink: 0;
    width: 22px;
    height: 22px;
    margin-left: 14px;
    border: 1px solid rgba(31,224,169,0.29);
    color: var(--energy);
    border-radius: 50%;
    background: rgba(31,224,169,0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    transition: transform .2s ease;
  }

  .custom-accordion .accordion-item.is-active .aq-icon {
    transform: rotate(45deg);
  }

  .custom-accordion .accordion-content {
    border-bottom: 0;
    background: transparent;
    padding: 0 22px 22px;
    color: var(--text-secondary);
    font-size: 15px;
  }

  .custom-accordion .accordion-content p {
    color: var(--text-secondary);
    border-top: 1px solid rgba(255,255,255,0.07);
    padding-top: 14px;
    line-height: 1.85;
  }

  /* ---------- Band CTA ---------- */
  .cta-block {
    background:
      linear-gradient(135deg, rgba(31,224,169,0.08), transparent 48%),
      linear-gradient(315deg, rgba(50,113,255,0.08), transparent 42%),
      var(--panel-bg);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: var(--radius-xl);
    padding: clamp(32px, 5vw, 58px);
    box-shadow: var(--shadow-card);
    position: relative;
    overflow: hidden;
  }

  .cta-block::after {
    content: "";
    position: absolute;
    right: -100px;
    bottom: -100px;
    width: 280px;
    height: 280px;
    background: radial-gradient(circle, rgba(50,113,255,0.18), transparent 70%);
    pointer-events: none;
  }

  .cta-block .cta-grid {
    position: relative;
    z-index: 1;
    display: flex;
    gap: 24px;
    flex-direction: column;
    align-items: flex-start;
  }

  @media (min-width: 900px) {
    .cta-block .cta-grid {
      flex-direction: row;
      align-items: center;
      justify-content: space-between;
    }
  }

  .cta-copy {
    max-width: 560px;
  }

  .cta-copy h2 {
    font-size: clamp(26px, 3vw, 36px);
    font-weight: 800;
    line-height: 1.28;
    color: #FFFFFF;
    margin-bottom: 12px;
  }

  .cta-copy p {
    color: var(--text-secondary);
    font-size: 16px;
  }

  .cta-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    flex-shrink: 0;
  }

  .cat-banner-note {
    display: flex;
    align-items: center;
    gap: 12px;
    background: rgba(6,12,23,0.44);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 12px;
    padding: 11px 19px;
    margin-top: 18px;
    font-size: 13px;
    color: var(--text-secondary);
    width: fit-content;
  }

  .cat-banner-note i {
    width: 8px;
    height: 8px;
    background: var(--energy);
    border-radius: 4px;
    box-shadow: 0 0 12px rgba(31,224,169,0.5);
  }

  /* ---------- Footer ---------- */
  .site-footer {
    background: #050B14;
    border-top: 1px solid rgba(255, 255, 255, 0.07);
    padding: 58px clamp(20px, 4vw, 48px) 28px;
  }

  .footer-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr;
    gap: 36px;
  }

  @media (min-width: 760px) {
    .footer-grid {
      grid-template-columns: 1.5fr 1fr 1.2fr;
      gap: 42px;
    }
  }

  .footer-brand .footer-brand-name {
    color: #FFFFFF;
    font-size: 22px;
    font-weight: 800;
    display: flex;
    flex-direction: column;
    margin-bottom: 18px;
    line-height: 1.2;
  }

  .footer-brand .footer-brand-name small {
    margin-top: 6px;
    color: var(--energy);
    font-size: 12px;
    font-weight: 400;
    letter-spacing: 0.1em;
  }

  .footer-brand p {
    color: var(--text-muted);
    font-size: 14px;
    max-width: 340px;
  }

  .footer-title {
    margin-bottom: 17px;
  }

  .footer-title h4 {
    font-size: 15px;
    color: #FFFFFF;
    letter-spacing: 0.08em;
    margin: 0;
    font-weight: 650;
  }

  .footer-nav,
  .footer-contact {
    display: flex;
    flex-direction: column;
    gap: 11px;
    font-size: 14px;
  }

  .footer-nav a {
    color: var(--text-secondary);
    transition: color .2s;
  }

  .footer-nav a:hover {
    color: var(--energy);
  }

  .footer-contact {
    color: var(--text-muted);
    font-style: normal;
  }

  .footer-contact li {
    position: relative;
    line-height: 1.65;
  }

  .footer-copyline {
    max-width: 1200px;
    margin: 52px auto 0;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    display: flex;
    gap: 14px;
    justify-content: space-between;
    flex-wrap: wrap;
    font-size: 13px;
    color: var(--text-muted);
  }

  /* ---------- Spacing helpers ---------- */
  .mt-md {
    margin-top: clamp(18px, 2.4vw, 30px);
  }

  .mb-lg {
    margin-bottom: clamp(34px, 5vw, 66px);
  }

  .hide-mobile {
    display: none;
  }

  /* Responsive settle */
  @media screen and (min-width: 1024px) {
    .hide-mobile {
      display: inline-flex;
    }
  }

  @media (max-width: 640px) {
    .cat-hero {
      min-height: 430px;
      padding-block: 58px 40px;
    }

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

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

    .section-head h2 {
      font-size: 24px;
      padding-left: 13px;
    }

    .quote-strip {
      padding: 20px 18px;
      gap: 8px;
      flex-direction: column;
    }

    .quote-mark {
      width: 30px;
    }

    .observe-item .step {
      margin-bottom: 2px;
    }

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