/* roulang page: index */
/* ===== Design Tokens ===== */
:root {
  --primary: #00E5CC;
  --secondary: #7C5CFF;
  --accent: #FF2E88;
  --bg-main: #0B0F17;
  --bg-card: #131A26;
  --bg-card-hover: #1D2633;
  --bg-panel: #101828;
  --text-main: #E6EDF3;
  --text-secondary: #8FA3B8;
  --border-light: rgba(255,255,255,.08);
  --border-primary: rgba(0,229,204,.35);
  --radius-card: 16px;
  --radius-btn: 8px;
  --radius-badge: 999px;
  --shadow-card: 0 12px 40px rgba(0,0,0,.45), 0 0 0 1px rgba(255,255,255,.04);
  --shadow-hover: 0 0 24px rgba(0,229,204,.18);
  --shadow-panel: 0 24px 80px rgba(0,0,0,.55);
  --header-height: 72px;
  --section-space: 80px;
  --font-cn: "PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num: "Rajdhani","Inter",sans-serif;
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  font-size: 16px;
}
body {
  font-family: var(--font-cn);
  background-color: var(--bg-main);
  background-image:
    radial-gradient(ellipse 60% 40% at 70% 0%, rgba(124,92,255,.12), transparent 60%),
    radial-gradient(ellipse 50% 35% at 15% 20%, rgba(0,229,204,.07), transparent 55%);
  color: var(--text-main);
  line-height: 1.75;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
a {
  color: var(--primary);
  text-decoration: none;
  transition: color .25s ease;
}
a:hover {
  color: var(--primary);
}
img {
  max-width: 100%;
  display: block;
}
button, input, select, textarea {
  font-family: inherit;
  font-size: 1rem;
}
ul, ol {
  list-style: none;
}
::selection {
  background: rgba(0,229,204,.3);
  color: #fff;
}
:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* ===== Container ===== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-btn);
  font-weight: 700;
  font-size: .95rem;
  line-height: 1.2;
  cursor: pointer;
  border: none;
  transition: all .3s ease;
  text-decoration: none;
}
.btn i {
  font-size: .85em;
}
.btn-primary {
  background: linear-gradient(135deg, #00E5CC, #7C5CFF);
  color: #04121A;
  box-shadow: 0 4px 20px rgba(0,229,204,.22);
}
.btn-primary:hover {
  filter: brightness(1.1);
  box-shadow: 0 0 24px rgba(0,229,204,.35);
  color: #04121A;
  transform: translateY(-2px);
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 12px rgba(0,229,204,.2);
}
.btn-ghost {
  background: transparent;
  color: var(--primary);
  border: 1px solid var(--border-primary);
}
.btn-ghost:hover {
  background: rgba(0,229,204,.12);
  color: var(--primary);
  box-shadow: 0 0 16px rgba(0,229,204,.15);
  transform: translateY(-2px);
}

/* ===== Badges & Tags ===== */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 14px;
  border-radius: var(--radius-badge);
  background: rgba(124,92,255,.18);
  color: #C4B5FD;
  border: 1px solid rgba(124,92,255,.4);
  font-size: .78rem;
  font-weight: 600;
  line-height: 1.4;
  white-space: nowrap;
}
.badge-accent {
  background: rgba(255,46,136,.15);
  color: #FF8AB8;
  border-color: rgba(255,46,136,.35);
}
.badge-primary {
  background: rgba(0,229,204,.15);
  color: #5CE8D8;
  border-color: rgba(0,229,204,.35);
}

/* ===== Section Common ===== */
.section {
  padding: var(--section-space) 0;
  position: relative;
}
.section-head {
  margin-bottom: 48px;
}
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 12px;
}
.section-tag::before {
  content: '';
  width: 20px;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), transparent);
  border-radius: 2px;
}
.section-head h2 {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700;
  line-height: 1.25;
  color: var(--text-main);
  margin-bottom: 12px;
}
.section-lead {
  color: var(--text-secondary);
  font-size: 1rem;
  max-width: 680px;
}

/* ===== Header / Nav ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(11,15,23,.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
  z-index: 1000;
}
.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}
.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .85rem;
  color: #04121A;
  font-weight: 800;
  box-shadow: 0 0 16px rgba(0,229,204,.3);
}
.brand-text {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: 1px;
  white-space: nowrap;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  height: var(--header-height);
  margin: 0;
  padding: 0;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  height: var(--header-height);
  padding: 0 18px;
  color: var(--text-secondary);
  font-size: .95rem;
  font-weight: 500;
  position: relative;
  text-decoration: none;
  transition: color .25s ease;
}
.nav-link::after {
  content: '';
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  border-radius: 3px 3px 0 0;
  opacity: 0;
  transform: scaleX(.4);
  transition: all .3s ease;
}
.nav-link:hover,
.nav-link.active {
  color: var(--text-main);
}
.nav-link:hover::after,
.nav-link.active::after {
  opacity: 1;
  transform: scaleX(1);
}
.nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

/* ===== Mega Menu ===== */
.mega-wrap {
  position: relative;
}
.mega-trigger {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 40px;
  padding: 0 18px;
  border-radius: var(--radius-btn);
  border: 1px solid var(--border-light);
  background: rgba(19,26,38,.8);
  color: var(--text-main);
  font-size: .9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all .3s ease;
}
.mega-trigger:hover,
.mega-trigger.active {
  border-color: var(--border-primary);
  background: rgba(0,229,204,.08);
  box-shadow: 0 0 16px rgba(0,229,204,.12);
}
.mega-trigger i {
  font-size: .75rem;
  transition: transform .3s ease;
}
.mega-trigger.active i {
  transform: rotate(180deg);
}
.mega-panel {
  position: absolute;
  top: calc(100% + 12px);
  right: 0;
  width: 560px;
  max-width: 90vw;
  background: var(--bg-panel);
  border: 1px solid rgba(0,229,204,.25);
  border-radius: 16px;
  box-shadow: var(--shadow-panel);
  padding: 28px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: all .3s ease;
  z-index: 1002;
  pointer-events: none;
}
.mega-panel.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}
.mega-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1.1fr;
  gap: 24px;
}
.mega-title {
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(0,229,204,.15);
}
.mega-links li {
  margin-bottom: 4px;
}
.mega-links a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 8px;
  color: var(--text-secondary);
  font-size: .9rem;
  transition: all .25s ease;
}
.mega-links a:hover {
  background: rgba(0,229,204,.08);
  color: var(--primary);
  padding-left: 14px;
}
.mega-links a i {
  width: 20px;
  text-align: center;
  color: var(--primary);
  font-size: .85rem;
}
.mega-arrow {
  margin-left: auto;
  font-size: .8rem;
  opacity: 0;
  transition: opacity .25s ease;
}
.mega-links a:hover .mega-arrow {
  opacity: 1;
}
.mega-news li {
  margin-bottom: 8px;
}
.mega-news a {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 8px 10px;
  border-radius: 8px;
  color: var(--text-main);
  font-size: .88rem;
  transition: background .25s ease;
}
.mega-news a:hover {
  background: rgba(0,229,204,.06);
}
.mega-news-time {
  font-size: .75rem;
  color: var(--text-secondary);
}
.mega-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 10px;
  border-radius: 12px;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  transition: all .3s ease;
}
.mega-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-primary);
  transform: translateY(-2px);
}
.mega-card img {
  border-radius: 8px;
  height: 90px;
  width: 100%;
  object-fit: cover;
}
.mega-card-info {
  display: flex;
  flex-direction: column;
}
.mega-card-info strong {
  font-size: .9rem;
  color: var(--text-main);
}
.mega-card-info span {
  font-size: .8rem;
  color: var(--primary);
}

/* ===== Mobile Menu Toggle ===== */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  border: 1px solid var(--border-light);
  border-radius: 8px;
  background: rgba(19,26,38,.8);
  cursor: pointer;
  padding: 0 8px;
}
.menu-toggle span {
  display: block;
  height: 2px;
  background: var(--text-main);
  border-radius: 2px;
  transition: all .3s ease;
}
.menu-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}
.menu-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-height);
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(11,15,23,.92) 0%, rgba(11,15,23,.76) 35%, rgba(11,15,23,.35) 70%, rgba(11,15,23,.6) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  width: 100%;
}
.hero-copy {
  padding: 60px 0;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--primary);
  margin-bottom: 20px;
  text-transform: uppercase;
}
.eyebrow::before {
  content: '';
  width: 36px;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  border-radius: 2px;
}
.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 800;
  line-height: 1.12;
  margin-bottom: 10px;
  background: linear-gradient(135deg, #fff 20%, #9EEFEA 60%, var(--primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-lead {
  font-size: clamp(1.2rem, 2.5vw, 1.8rem);
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 16px;
  letter-spacing: 1px;
}
.hero-desc {
  font-size: 1.02rem;
  color: var(--text-secondary);
  max-width: 480px;
  margin-bottom: 32px;
  line-height: 1.8;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}
.hero-visual {
  position: relative;
  padding: 40px 0;
}
.hero-card-wrap {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(0,229,204,.2);
}
.hero-card-wrap img {
  width: 100%;
  height: 420px;
  object-fit: cover;
}
.hero-card-wrap::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(11,15,23,.8), transparent 50%);
  pointer-events: none;
}
.hero-card-float {
  position: absolute;
  bottom: 24px;
  left: 24px;
  right: 24px;
  background: rgba(16,24,40,.75);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(0,229,204,.2);
  border-radius: 12px;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  z-index: 2;
}
.float-label {
  font-size: .75rem;
  color: var(--text-secondary);
}
.hero-card-float strong {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--primary);
  font-family: var(--font-num);
  line-height: 1;
}
.scroll-hint {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  opacity: .65;
}
.scroll-hint span {
  display: block;
  width: 22px;
  height: 36px;
  border: 2px solid var(--text-secondary);
  border-radius: 12px;
  position: relative;
}
.scroll-hint span::after {
  content: '';
  position: absolute;
  top: 7px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 8px;
  background: var(--primary);
  border-radius: 2px;
  animation: scrollPulse 1.8s infinite;
}
@keyframes scrollPulse {
  0% { opacity: 1; transform: translate(-50%, 0); }
  70% { opacity: 0; transform: translate(-50%, 12px); }
  100% { opacity: 0; transform: translate(-50%, 12px); }
}

/* ===== Stats Bar ===== */
.stats-bar {
  padding: 56px 0;
  background: var(--bg-card);
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
  position: relative;
}
.stats-bar::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0,229,204,.4), transparent);
}
.stat-item {
  text-align: center;
  padding: 20px 16px;
}
.stat-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 12px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: var(--primary);
  background: rgba(0,229,204,.1);
  border: 1px solid rgba(0,229,204,.2);
}
.stat-number {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--text-main);
  font-family: var(--font-num);
  line-height: 1.1;
}
.stat-number em {
  color: var(--accent);
  font-style: normal;
}
.stat-label {
  font-size: .88rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* ===== Feature Blocks ===== */
.feature-block {
  padding: 60px 0;
  position: relative;
}
.feature-block.alternate .grid-x {
  flex-direction: row-reverse;
}
.feature-img {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.feature-img img {
  width: 100%;
  height: 340px;
  object-fit: cover;
  transition: transform .5s ease;
}
.feature-img:hover img {
  transform: scale(1.03);
}
.feature-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,229,204,.12), rgba(124,92,255,.18));
  pointer-events: none;
}
.feature-content {
  padding: 20px 0;
}
.feature-content .section-tag {
  margin-bottom: 8px;
}
.feature-content h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 14px;
  color: var(--text-main);
}
.feature-points {
  margin-top: 28px;
}
.feature-points li {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(255,255,255,.05);
}
.feature-points li:last-child {
  border-bottom: none;
}
.feature-points li i {
  flex-shrink: 0;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(124,92,255,.14);
  color: #C4B5FD;
  font-size: .95rem;
  border: 1px solid rgba(124,92,255,.25);
}
.feature-points li strong {
  display: block;
  font-size: 1rem;
  color: var(--text-main);
  margin-bottom: 4px;
}
.feature-points li span {
  font-size: .88rem;
  color: var(--text-secondary);
  line-height: 1.6;
}
.capability-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}
.capability-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 999px;
  background: rgba(19,26,38,.9);
  border: 1px solid rgba(0,229,204,.2);
  color: var(--text-main);
  font-size: .86rem;
  font-weight: 500;
  transition: all .3s ease;
}
.capability-tag:hover {
  border-color: var(--primary);
  box-shadow: 0 0 12px rgba(0,229,204,.12);
}
.capability-tag i {
  color: var(--primary);
  font-size: .8rem;
}

/* ===== Scenarios ===== */
.scenarios {
  padding: var(--section-space) 0;
}
.scenarios-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.scenario-card {
  position: relative;
  border-radius: var(--radius-card);
  overflow: hidden;
  min-height: 340px;
  display: flex;
  align-items: flex-end;
  box-shadow: var(--shadow-card);
  transition: all .35s ease;
  border: 1px solid rgba(255,255,255,.06);
  text-decoration: none;
}
.scenario-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: var(--border-primary);
}
.scenario-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.scenario-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(11,15,23,.92) 0%, rgba(11,15,23,.55) 45%, rgba(11,15,23,.2) 100%);
  transition: background .3s ease;
}
.scenario-card:hover .scenario-overlay {
  background: linear-gradient(to top, rgba(11,15,23,.95) 0%, rgba(11,15,23,.65) 50%, rgba(11,15,23,.25) 100%);
}
.scenario-body {
  position: relative;
  z-index: 2;
  padding: 28px;
  width: 100%;
}
.scenario-body h3 {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-main);
}
.scenario-body p {
  font-size: .88rem;
  color: rgba(230,237,243,.75);
  line-height: 1.7;
  margin-bottom: 16px;
}
.scenario-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .88rem;
  font-weight: 600;
  color: var(--primary);
}
.scenario-link i {
  transition: transform .25s ease;
}
.scenario-card:hover .scenario-link i {
  transform: translateX(4px);
}

/* ===== Cases ===== */
.cases {
  padding: var(--section-space) 0;
  background: var(--bg-card);
  position: relative;
}
.cases::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(124,92,255,.3), transparent);
}
.cases-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.case-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  background: var(--bg-main);
  border-radius: var(--radius-card);
  border: 1px solid var(--border-light);
  padding: 28px;
  transition: all .3s ease;
}
.case-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(0,229,204,.25);
  box-shadow: var(--shadow-hover);
}
.case-info {
  flex: 1;
}
.case-info h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--text-main);
}
.case-info p {
  font-size: .86rem;
  color: var(--text-secondary);
  margin-bottom: 12px;
  line-height: 1.6;
}
.case-metric {
  text-align: right;
  flex-shrink: 0;
  padding-left: 20px;
  border-left: 1px solid rgba(255,255,255,.06);
}
.case-metric strong {
  display: block;
  font-size: 1.7rem;
  font-weight: 800;
  color: var(--accent);
  font-family: var(--font-num);
  line-height: 1.2;
  white-space: nowrap;
}
.case-metric span {
  font-size: .78rem;
  color: var(--text-secondary);
  white-space: nowrap;
}

/* ===== News / CMS ===== */
.news {
  padding: var(--section-space) 0;
}
.news-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 32px;
}
.news-item {
  display: grid;
  grid-template-columns: 200px 1fr 120px;
  gap: 24px;
  align-items: center;
  padding: 24px 28px;
  background: var(--bg-card);
  border-radius: var(--radius-card);
  border: 1px solid var(--border-light);
  transition: all .3s ease;
}
.news-item:hover {
  background: var(--bg-card-hover);
  border-color: rgba(0,229,204,.2);
  transform: translateX(4px);
}
.news-meta {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.news-meta time {
  font-size: .78rem;
  color: var(--text-secondary);
}
.news-item h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 4px;
}
.news-item h3 a {
  color: var(--text-main);
  transition: color .25s ease;
}
.news-item h3 a:hover {
  color: var(--primary);
}
.news-item p {
  font-size: .86rem;
  color: var(--text-secondary);
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  line-height: 1.6;
  margin-bottom: 0;
}
.news-more {
  font-size: .85rem;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
  justify-self: end;
}
.news-more i {
  transition: transform .25s ease;
}
.news-more:hover i {
  transform: translateX(4px);
}
.news-empty {
  grid-column: 1 / -1;
  padding: 60px 32px;
  text-align: center;
  background: var(--bg-card);
  border-radius: var(--radius-card);
  border: 1px dashed rgba(255,255,255,.12);
  color: var(--text-secondary);
}
.more-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .92rem;
  font-weight: 600;
  color: var(--primary);
  transition: all .25s ease;
}
.more-link:hover {
  gap: 12px;
  color: var(--primary);
}

/* ===== Pricing ===== */
.pricing {
  padding: var(--section-space) 0;
  background: var(--bg-card);
  position: relative;
}
.pricing::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0,229,204,.3), transparent);
}
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
  margin-top: 48px;
}
.price-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-main);
  border-radius: var(--radius-card);
  border: 1px solid var(--border-light);
  padding: 32px 28px;
  position: relative;
  transition: all .3s ease;
}
.price-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(0,229,204,.2);
}
.price-card.hot {
  background: linear-gradient(180deg, rgba(0,229,204,.06), transparent 30%), var(--bg-main);
  border: 2px solid rgba(0,229,204,.5);
  box-shadow: 0 0 32px rgba(0,229,204,.12);
  transform: scale(1.02);
}
.price-card.hot:hover {
  box-shadow: 0 0 40px rgba(0,229,204,.2);
  transform: scale(1.02) translateY(-4px);
}
.price-hot-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #04121A;
  font-size: .78rem;
  font-weight: 800;
  padding: 4px 18px;
  border-radius: 999px;
  white-space: nowrap;
  letter-spacing: 1px;
}
.price-name {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
}
.price-amount {
  margin-bottom: 24px;
}
.price-amount strong {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--text-main);
  font-family: var(--font-num);
  line-height: 1;
}
.price-amount span {
  font-size: .9rem;
  color: var(--text-secondary);
  margin-left: 4px;
}
.price-features {
  flex: 1;
  margin-bottom: 28px;
}
.price-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  font-size: .9rem;
  color: var(--text-secondary);
}
.price-features li i {
  color: var(--primary);
  font-size: .8rem;
  width: 20px;
  text-align: center;
}
.price-card .btn {
  width: 100%;
}

/* ===== FAQ ===== */
.faq {
  padding: var(--section-space) 0;
}
.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 48px;
}
.faq-item {
  background: var(--bg-card);
  border-radius: var(--radius-card);
  border: 1px solid var(--border-light);
  overflow: hidden;
  transition: border-color .3s ease, box-shadow .3s ease;
}
.faq-item.open {
  border-color: rgba(0,229,204,.3);
  box-shadow: 0 0 16px rgba(0,229,204,.06);
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 18px 24px;
  background: transparent;
  border: none;
  color: var(--text-main);
  font-size: 1rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  transition: color .25s ease;
  min-height: 48px;
}
.faq-question:hover {
  color: var(--primary);
}
.faq-icon {
  position: relative;
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}
.faq-icon::before,
.faq-icon::after {
  content: '';
  position: absolute;
  background: var(--primary);
  border-radius: 2px;
  transition: all .25s ease;
}
.faq-icon::before {
  left: 0;
  right: 0;
  top: 9px;
  height: 2px;
}
.faq-icon::after {
  top: 0;
  bottom: 0;
  left: 9px;
  width: 2px;
}
.faq-item.open .faq-icon::after {
  transform: scaleY(0);
}
.faq-answer {
  display: none;
  padding: 4px 24px 20px;
  color: var(--text-secondary);
  font-size: .92rem;
  line-height: 1.75;
  border-top: 1px solid rgba(255,255,255,.04);
  margin-top: 0;
}
.faq-answer p {
  margin-top: 12px;
}

/* ===== CTA ===== */
.cta-section {
  position: relative;
  padding: var(--section-space) 0;
  overflow: hidden;
}
.cta-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.cta-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.cta-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(11,15,23,.92), rgba(16,24,40,.82));
}
.cta-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}
.cta-content h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  margin-bottom: 14px;
  color: var(--text-main);
}
.cta-content p {
  color: var(--text-secondary);
  margin-bottom: 32px;
  font-size: .98rem;
}
.cta-form {
  display: flex;
  gap: 12px;
  max-width: 560px;
  margin: 0 auto;
  flex-wrap: wrap;
  justify-content: center;
}
.cta-form input {
  flex: 1;
  min-width: 180px;
  padding: 14px 18px;
  background: #0E1622;
  border: 1px solid rgba(255,255,255,.1);
  border-bottom: 2px solid rgba(0,229,204,.4);
  border-radius: var(--radius-btn);
  color: var(--text-main);
  font-size: .92rem;
  transition: all .25s ease;
}
.cta-form input::placeholder {
  color: rgba(143,163,184,.7);
}
.cta-form input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(0,229,204,.15);
}
.cta-form .btn {
  padding: 14px 28px;
}

/* ===== Footer ===== */
.site-footer {
  border-top: 1px solid var(--border-light);
  background: #090D14;
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 48px;
}
.footer-brand .brand-logo {
  margin-bottom: 16px;
}
.footer-description {
  font-size: .88rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 260px;
}
.footer-title {
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 16px;
}
.footer-links li {
  margin-bottom: 10px;
}
.footer-links a {
  color: var(--text-secondary);
  font-size: .9rem;
  display: inline-flex;
  align-items: center;
  transition: all .25s ease;
}
.footer-links a::before {
  content: '';
  width: 0;
  height: 0;
}
.footer-links a:hover {
  color: var(--primary);
  transform: translateX(4px);
}
.footer-contact li {
  display: flex;
  gap: 10px;
  margin-bottom: 12px;
  font-size: .9rem;
  color: var(--text-secondary);
}
.footer-contact li i {
  color: var(--primary);
  width: 18px;
  margin-top: 4px;
}
.footer-social {
  display: flex;
  gap: 10px;
  margin-top: 16px;
}
.social-circle {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  color: var(--text-secondary);
  font-size: .85rem;
  transition: all .25s ease;
}
.social-circle:hover {
  color: var(--primary);
  border-color: var(--primary);
  box-shadow: 0 0 12px rgba(0,229,204,.2);
  transform: translateY(-2px);
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.06);
  padding: 20px 0;
  font-size: .82rem;
  color: var(--text-secondary);
  text-align: center;
}
.footer-bottom a {
  color: var(--text-secondary);
}
.footer-bottom a:hover {
  color: var(--primary);
}

/* ===== Responsive ===== */
@media (max-width: 64em) {
  .mega-panel {
    width: 520px;
  }
  .news-item {
    grid-template-columns: 180px 1fr 100px;
    padding: 20px;
  }
  .pricing-grid {
    gap: 16px;
  }
  .price-card {
    padding: 26px 20px;
  }
  .case-card {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  .case-metric {
    text-align: left;
    border-left: none;
    padding-left: 0;
    border-top: 1px solid rgba(255,255,255,.06);
    padding-top: 12px;
    width: 100%;
  }
}

@media (max-width: 40em) {
  :root {
    --section-space: 56px;
  }
  .container {
    padding: 0 16px;
  }
  .menu-toggle {
    display: flex;
  }
  .main-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--bg-panel);
    flex-direction: column;
    align-items: stretch;
    height: auto;
    padding: 16px;
    display: none;
    box-shadow: var(--shadow-panel);
    border-bottom: 1px solid var(--border-light);
    z-index: 999;
    gap: 4px;
  }
  .main-nav.open {
    display: flex;
  }
  .nav-link {
    height: auto;
    padding: 14px 16px;
    justify-content: flex-start;
  }
  .nav-link::after {
    display: none;
  }
  .nav-link:hover,
  .nav-link.active {
    background: rgba(0,229,204,.06);
    border-radius: 8px;
  }
  .nav-right {
    gap: 8px;
  }
  .mega-trigger span {
    display: none;
  }
  .mega-trigger {
    width: 40px;
    padding: 0;
    justify-content: center;
  }
  .mega-panel {
    position: fixed;
    top: var(--header-height);
    left: 12px;
    right: 12px;
    width: auto;
    max-width: none;
  }
  .mega-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .hero-card-wrap img {
    height: 280px;
  }
  .hero-copy {
    padding: 40px 0 20px;
  }
  .hero-actions .btn {
    width: 100%;
    margin-bottom: 8px;
  }
  .stats-bar {
    padding: 36px 0;
  }
  .stat-number {
    font-size: 1.8rem;
  }
  .stat-icon {
    width: 40px;
    height: 40px;
  }
  .scenarios-grid {
    grid-template-columns: 1fr;
  }
  .scenario-card {
    min-height: 280px;
  }
  .cases-grid {
    grid-template-columns: 1fr;
  }
  .case-card {
    padding: 20px;
  }
  .news-item {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 20px;
  }
  .news-meta {
    flex-direction: row;
    align-items: center;
    gap: 12px;
  }
  .news-more {
    justify-self: start;
  }
  .pricing-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .price-card.hot {
    transform: scale(1);
  }
  .price-card.hot:hover {
    transform: translateY(-4px);
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .cta-form {
    flex-direction: column;
    align-items: stretch;
  }
  .cta-form input {
    width: 100%;
  }
  .cta-form .btn {
    width: 100%;
  }
  .feature-block.alternate .grid-x {
    flex-direction: column-reverse;
  }
  .feature-img img {
    height: 240px;
  }
}

@media (max-width: 30em) {
  .hero-card-wrap img {
    height: 220px;
  }
  .hero-card-float {
    flex-wrap: wrap;
    gap: 8px;
  }
  .case-metric strong {
    font-size: 1.4rem;
  }
}

/* ===== Utility ===== */
.section-divider {
  border: none;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.08), transparent);
  margin: 0;
}

/* roulang page: category1 */
:root{
  --primary:#00E5CC;
  --secondary:#7C5CFF;
  --accent:#FF2E88;
  --bg-main:#0B0F17;
  --bg-card:#131A26;
  --bg-hover:#1D2633;
  --bg-panel:#101828;
  --text-main:#E6EDF3;
  --text-muted:#8FA3B8;
  --border:rgba(255,255,255,.08);
  --radius-card:16px;
  --radius-btn:8px;
  --shadow:0 12px 40px rgba(0,0,0,.45),0 0 0 1px rgba(255,255,255,.04);
  --shadow-hover:0 12px 40px rgba(0,0,0,.45),0 0 24px rgba(0,229,204,.18);
  --transition:all .3s cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--bg-main);
  color:var(--text-main);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:'';
  position:fixed;
  inset:0;
  background:radial-gradient(ellipse 80% 60% at 50% -20%,rgba(0,229,204,.08),transparent),
             radial-gradient(ellipse 60% 40% at 90% 20%,rgba(124,92,255,.06),transparent),
             radial-gradient(ellipse 70% 50% at 10% 80%,rgba(255,46,136,.04),transparent);
  pointer-events:none;
  z-index:0;
}
a{color:inherit;text-decoration:none;transition:var(--transition)}
img{max-width:100%;display:block;border:0}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
ul,ol{list-style:none}
input,textarea{font-family:inherit}

.container{
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:1;
}

/* ===== Header ===== */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1000;
  height:72px;
  background:rgba(11,15,23,.92);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--border);
  transition:box-shadow .3s;
}
.site-header.scrolled{box-shadow:0 8px 40px rgba(0,0,0,.4)}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:72px;
  gap:24px;
}
.brand-logo{
  display:flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.brand-icon{
  width:40px;height:40px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  border-radius:10px;
  font-size:1.1rem;
  color:#04121A;
  box-shadow:0 0 20px rgba(0,229,204,.25);
}
.brand-text{
  font-size:1.25rem;
  font-weight:800;
  letter-spacing:.5px;
  background:linear-gradient(135deg,#fff,var(--primary));
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:6px;
  flex:1;
  justify-content:center;
}
.nav-link{
  position:relative;
  padding:0 18px;
  height:72px;
  line-height:72px;
  font-size:1rem;
  font-weight:500;
  color:var(--text-muted);
  transition:color .3s;
  white-space:nowrap;
}
.nav-link:hover{color:var(--text-main)}
.nav-link::after{
  content:'';
  position:absolute;
  bottom:0;left:50%;
  transform:translateX(-50%) scaleX(0);
  width:calc(100% - 24px);
  height:3px;
  background:linear-gradient(90deg,var(--primary),var(--secondary));
  border-radius:3px 3px 0 0;
  transition:transform .3s;
}
.nav-link:hover::after,.nav-link.active::after{transform:translateX(-50%) scaleX(1)}
.nav-link.active{color:var(--primary);font-weight:600}
.nav-tools{
  display:flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.mega-trigger-wrap{position:relative}
.mega-trigger{
  display:flex;
  align-items:center;
  gap:8px;
  padding:10px 20px;
  background:rgba(124,92,255,.12);
  border:1px solid rgba(124,92,255,.35);
  border-radius:999px;
  color:#C4B5FD;
  font-size:.9rem;
  font-weight:500;
  transition:var(--transition);
}
.mega-trigger:hover{
  background:rgba(124,92,255,.22);
  border-color:rgba(124,92,255,.6);
  box-shadow:0 0 20px rgba(124,92,255,.15);
}
.mega-trigger i{font-size:.75rem;transition:transform .3s}
.mega-trigger.open i{transform:rotate(180deg)}
.mega-panel{
  position:absolute;
  top:calc(100% + 16px);
  right:0;
  width:520px;
  max-width:calc(100vw - 48px);
  background:var(--bg-panel);
  border:1px solid rgba(0,229,204,.25);
  border-radius:16px;
  padding:24px;
  box-shadow:0 24px 80px rgba(0,0,0,.5);
  opacity:0;
  visibility:hidden;
  transform:translateY(-8px);
  transition:all .3s ease;
  z-index:1001;
}
.mega-panel.open{
  opacity:1;
  visibility:visible;
  transform:translateY(0);
}
.mega-grid{
  display:grid;
  grid-template-columns:1fr 1fr 1fr;
  gap:24px;
}
.mega-col h4{
  font-size:.75rem;
  font-weight:700;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--primary);
  margin-bottom:16px;
}
.mega-link{
  display:block;
  padding:6px 0;
  color:var(--text-muted);
  font-size:.9rem;
}
.mega-link:hover{color:var(--primary);transform:translateX(4px)}
.mega-news-item{
  display:block;
  padding:8px 0;
  border-bottom:1px solid rgba(255,255,255,.05);
}
.mega-news-item:last-child{border-bottom:none}
.mega-news-time{
  display:block;
  font-size:.75rem;
  color:var(--accent);
  margin-bottom:2px;
}
.mega-news-text{
  font-size:.88rem;
  color:var(--text-muted);
  line-height:1.5;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.mega-news-item:hover .mega-news-text{color:var(--text-main)}
.mega-card{
  display:block;
  background:var(--bg-card);
  border-radius:12px;
  overflow:hidden;
  border:1px solid var(--border);
  transition:var(--transition);
}
.mega-card:hover{border-color:rgba(0,229,204,.4);transform:translateY(-2px)}
.mega-card-img{width:100%;height:80px;object-fit:cover}
.mega-card-title{
  display:block;
  font-size:.88rem;
  font-weight:600;
  padding:10px 12px 4px;
  color:var(--text-main);
}
.mega-card-more{
  display:block;
  font-size:.8rem;
  color:var(--primary);
  padding:0 12px 12px;
}
.mobile-toggle{
  display:none;
  width:40px;height:40px;
  align-items:center;
  justify-content:center;
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:8px;
  font-size:1rem;
  color:var(--text-main);
}

/* ===== Hero ===== */
.hero{
  position:relative;
  min-height:65vh;
  display:flex;
  align-items:center;
  padding:120px 0 80px;
  background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.hero::before{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(115deg,rgba(11,15,23,.88) 30%,rgba(11,15,23,.62) 55%,rgba(11,15,23,.38) 100%);
}
.hero::after{
  content:'';
  position:absolute;
  bottom:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,var(--primary),var(--secondary),transparent);
}
.hero-inner{
  position:relative;
  z-index:2;
  max-width:720px;
}
.hero-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 16px;
  background:rgba(0,229,204,.1);
  border:1px solid rgba(0,229,204,.3);
  border-radius:999px;
  font-size:.8rem;
  font-weight:600;
  letter-spacing:.1em;
  color:var(--primary);
  text-transform:uppercase;
  margin-bottom:24px;
}
.hero h1{
  font-size:clamp(2.2rem,5vw,3.8rem);
  font-weight:800;
  line-height:1.15;
  margin-bottom:20px;
  letter-spacing:.5px;
}
.hero h1 .gradient-text{
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
}
.hero-sub{
  font-size:1.1rem;
  color:var(--text-muted);
  line-height:1.8;
  margin-bottom:32px;
  max-width:560px;
}
.hero-actions{
  display:flex;
  gap:16px;
  flex-wrap:wrap;
}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:14px 28px;
  border-radius:var(--radius-btn);
  font-size:1rem;
  font-weight:600;
  transition:var(--transition);
  border:1px solid transparent;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  color:#04121A;
  border:none;
}
.btn-primary:hover{
  box-shadow:0 0 32px rgba(0,229,204,.3);
  transform:translateY(-2px);
  filter:brightness(1.05);
}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  background:transparent;
  border-color:var(--primary);
  color:var(--primary);
}
.btn-ghost:hover{
  background:rgba(0,229,204,.12);
  box-shadow:0 0 20px rgba(0,229,204,.15);
  transform:translateY(-2px);
}
.btn-ghost:active{transform:translateY(0)}
.btn-accent{
  background:linear-gradient(135deg,var(--secondary),var(--accent));
  color:#fff;
  border:none;
}
.btn-accent:hover{
  box-shadow:0 0 32px rgba(124,92,255,.35);
  transform:translateY(-2px);
}

/* ===== Section ===== */
.section{
  padding:80px 0;
  position:relative;
}
.section-alt{background:rgba(19,26,38,.35)}
.section-head{
  text-align:center;
  margin-bottom:48px;
}
.section-eyebrow{
  display:inline-block;
  font-size:.75rem;
  font-weight:700;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--primary);
  margin-bottom:10px;
}
.section-head h2{
  font-size:clamp(1.6rem,3vw,2.4rem);
  font-weight:700;
  line-height:1.25;
  margin-bottom:12px;
}
.section-head p{
  color:var(--text-muted);
  max-width:560px;
  margin:0 auto;
  font-size:1rem;
}

/* ===== Split ===== */
.split-grid{
  display:grid;
  grid-template-columns:1.1fr 1fr;
  gap:56px;
  align-items:center;
}
.split-image{
  position:relative;
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow);
}
.split-image::after{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,transparent 50%,rgba(11,15,23,.6));
  border:1px solid rgba(0,229,204,.15);
  border-radius:var(--radius-card);
}
.split-image img{
  width:100%;
  min-height:380px;
  object-fit:cover;
}
.split-content h2{
  font-size:clamp(1.6rem,3vw,2.2rem);
  font-weight:700;
  margin-bottom:16px;
}
.split-content p{
  color:var(--text-muted);
  margin-bottom:24px;
  font-size:1rem;
}
.feature-list{
  margin-bottom:32px;
}
.feature-list li{
  position:relative;
  padding-left:36px;
  margin-bottom:14px;
  font-size:1rem;
  color:var(--text-main);
}
.feature-list li::before{
  content:'\f00c';
  font-family:'Font Awesome 6 Free';
  font-weight:900;
  position:absolute;
  left:0;top:2px;
  width:22px;height:22px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(0,229,204,.12);
  border:1px solid rgba(0,229,204,.3);
  border-radius:50%;
  font-size:.6rem;
  color:var(--primary);
}

/* ===== Cards 2x2 ===== */
.cards-grid-2x2{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
}
.feature-card{
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:var(--transition);
}
.feature-card:hover{
  background:var(--bg-hover);
  border-color:rgba(0,229,204,.35);
  box-shadow:var(--shadow-hover);
  transform:translateY(-4px);
}
.feature-card-img{
  width:100%;
  height:200px;
  object-fit:cover;
  position:relative;
}
.feature-card-body{
  padding:28px;
}
.feature-card-body h3{
  font-size:1.15rem;
  font-weight:600;
  margin-bottom:10px;
}
.feature-card-body p{
  color:var(--text-muted);
  font-size:.95rem;
  margin-bottom:16px;
}
.feature-card-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--primary);
  font-size:.9rem;
  font-weight:500;
}
.feature-card-link:hover{gap:10px}

/* ===== Scenarios ===== */
.scenario-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.scenario-card{
  position:relative;
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  padding:36px 28px;
  overflow:hidden;
  transition:var(--transition);
}
.scenario-card::before{
  content:'';
  position:absolute;
  top:0;left:0;
  width:100%;height:3px;
  background:linear-gradient(90deg,var(--primary),var(--secondary));
  opacity:0;
  transition:opacity .3s;
}
.scenario-card:hover{
  border-color:rgba(0,229,204,.35);
  box-shadow:var(--shadow-hover);
  transform:translateY(-4px);
}
.scenario-card:hover::before{opacity:1}
.scenario-icon{
  width:48px;height:48px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(124,92,255,.15);
  border:1px solid rgba(124,92,255,.3);
  border-radius:12px;
  font-size:1.2rem;
  color:#C4B5FD;
  margin-bottom:20px;
}
.scenario-card h3{
  font-size:1.1rem;
  font-weight:600;
  margin-bottom:12px;
}
.scenario-card p{
  color:var(--text-muted);
  font-size:.92rem;
  margin-bottom:16px;
}
.scenario-card .btn{
  padding:8px 20px;
  font-size:.85rem;
}

/* ===== Process ===== */
.process-wrapper{
  background:url('/assets/images/backpic/back-2.webp') center/cover fixed;
  position:relative;
  border-radius:var(--radius-card);
  overflow:hidden;
}
.process-wrapper::before{
  content:'';
  position:absolute;
  inset:0;
  background:rgba(11,15,23,.86);
}
.process-inner{
  position:relative;
  z-index:1;
  padding:56px;
}
.process-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:32px;
}
.process-step{
  position:relative;
  text-align:left;
  padding:32px 24px;
  background:rgba(19,26,38,.7);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  transition:var(--transition);
}
.process-step:hover{
  border-color:rgba(0,229,204,.35);
  transform:translateY(-4px);
}
.process-num{
  font-size:2.2rem;
  font-weight:800;
  font-family:"Rajdhani","Inter",sans-serif;
  color:var(--primary);
  opacity:.8;
  margin-bottom:12px;
  line-height:1;
}
.process-step h3{
  font-size:1.05rem;
  font-weight:600;
  margin-bottom:8px;
}
.process-step p{
  font-size:.88rem;
  color:var(--text-muted);
  line-height:1.6;
}

/* ===== FAQ ===== */
.faq-list{
  max-width:760px;
  margin:0 auto;
}
.faq-item{
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:12px;
  margin-bottom:16px;
  overflow:hidden;
  transition:var(--transition);
}
.faq-item.open{
  border-color:rgba(0,229,204,.3);
  box-shadow:0 0 20px rgba(0,229,204,.08);
}
.faq-item.open::before{
  content:'';
  display:block;
  width:3px;
  background:linear-gradient(180deg,var(--primary),var(--secondary));
  height:100%;
  position:absolute;
  left:0;top:0;
}
.faq-item{
  position:relative;
}
.faq-question{
  width:100%;
  text-align:left;
  padding:20px 24px 20px 28px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
  font-size:1rem;
  font-weight:600;
  color:var(--text-main);
  background:transparent;
  transition:color .3s;
}
.faq-item.open .faq-question{color:var(--primary)}
.faq-icon{
  position:relative;
  width:18px;height:18px;
  flex-shrink:0;
}
.faq-icon::before,.faq-icon::after{
  content:'';
  position:absolute;
  top:50%;left:50%;
  transform:translate(-50%,-50%);
  background:var(--text-muted);
  transition:all .3s;
}
.faq-icon::before{width:18px;height:2px}
.faq-icon::after{width:2px;height:18px}
.faq-item.open .faq-icon::before,.faq-item.open .faq-icon::after{background:var(--primary)}
.faq-item.open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-answer{
  max-height:0;
  overflow:hidden;
  transition:max-height .35s ease;
}
.faq-answer p{
  padding:0 28px 20px;
  color:var(--text-muted);
  font-size:.95rem;
  line-height:1.75;
}

/* ===== CTA ===== */
.cta-section{
  position:relative;
  padding:80px 0;
  background:url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  text-align:center;
}
.cta-section::before{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(135deg,rgba(11,15,23,.9),rgba(11,15,23,.72));
}
.cta-section::after{
  content:'';
  position:absolute;
  bottom:0;left:50%;
  transform:translateX(-50%);
  width:240px;height:1px;
  background:linear-gradient(90deg,transparent,var(--primary),transparent);
}
.cta-inner{
  position:relative;
  z-index:1;
  max-width:600px;
  margin:0 auto;
}
.cta-inner h2{
  font-size:clamp(1.6rem,3vw,2.4rem);
  font-weight:700;
  margin-bottom:16px;
}
.cta-inner p{
  color:var(--text-muted);
  font-size:1.05rem;
  margin-bottom:32px;
}
.cta-actions{
  display:flex;
  justify-content:center;
  gap:16px;
  flex-wrap:wrap;
}
.cta-phone{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:12px 24px;
  border-radius:var(--radius-btn);
  background:rgba(255,46,136,.08);
  border:1px solid rgba(255,46,136,.25);
  color:#FF7EB5;
  font-size:.95rem;
  font-weight:500;
  margin-top:16px;
  transition:var(--transition);
}
.cta-phone:hover{
  background:rgba(255,46,136,.15);
  border-color:rgba(255,46,136,.4);
}

/* ===== Footer ===== */
.site-footer{
  background:#070B12;
  border-top:1px solid var(--border);
  padding-top:60px;
  position:relative;
  z-index:1;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand .brand-logo{margin-bottom:16px}
.footer-description{
  font-size:.9rem;
  color:var(--text-muted);
  line-height:1.7;
  max-width:300px;
  margin-bottom:20px;
}
.footer-social{
  display:flex;
  gap:10px;
}
.social-circle{
  width:36px;height:36px;
  display:flex;align-items:center;justify-content:center;
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:50%;
  font-size:.9rem;
  color:var(--text-muted);
  transition:var(--transition);
}
.social-circle:hover{
  background:rgba(0,229,204,.12);
  border-color:rgba(0,229,204,.4);
  color:var(--primary);
  transform:translateY(-3px);
}
.footer-title{
  font-size:.85rem;
  font-weight:700;
  letter-spacing:.05em;
  color:var(--primary);
  margin-bottom:18px;
  text-transform:uppercase;
}
.footer-links li{
  margin-bottom:10px;
}
.footer-links a{
  color:var(--text-muted);
  font-size:.9rem;
  transition:var(--transition);
}
.footer-links a:hover{
  color:var(--primary);
  display:inline-block;
  transform:translateX(4px);
}
.footer-contact li{
  display:flex;
  align-items:center;
  gap:10px;
  color:var(--text-muted);
  font-size:.9rem;
  margin-bottom:12px;
}
.footer-contact i{
  width:20px;
  color:var(--primary);
  font-size:.85rem;
}
.footer-bottom{
  border-top:1px solid var(--border);
  padding:24px 0;
  text-align:center;
}
.footer-bottom p{
  font-size:.85rem;
  color:var(--text-muted);
}
.footer-bottom a{
  color:var(--text-muted);
}
.footer-bottom a:hover{color:var(--primary)}

/* ===== Responsive ===== */
@media(max-width:1024px){
  .split-grid{grid-template-columns:1fr;gap:40px}
  .scenario-grid{grid-template-columns:repeat(3,1fr);gap:16px}
  .process-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .main-nav{
    position:fixed;
    top:72px;left:0;right:0;
    background:var(--bg-main);
    flex-direction:column;
    align-items:stretch;
    padding:16px 24px 24px;
    gap:0;
    border-bottom:1px solid var(--border);
    display:none;
    max-height:calc(100vh - 72px);
    overflow-y:auto;
    box-shadow:0 24px 80px rgba(0,0,0,.6);
  }
  .main-nav.open{display:flex}
  .nav-link{
    height:auto;
    line-height:1.5;
    padding:14px 0;
    border-bottom:1px solid rgba(255,255,255,.05);
  }
  .nav-link::after{display:none}
  .nav-link.active{color:var(--primary);padding-left:12px;border-left:3px solid var(--primary)}
  .mobile-toggle{display:flex}
  .mega-trigger{margin-top:12px;width:100%;justify-content:center}
  .mega-panel{
    position:static;
    width:100%;
    margin-top:12px;
    box-shadow:none;
    opacity:1;
    visibility:visible;
    transform:none;
    display:none;
    border-radius:12px;
  }
  .mega-panel.open{display:block}
  .mega-grid{grid-template-columns:1fr;gap:16px}
}
@media(max-width:640px){
  .section{padding:56px 0}
  .hero{min-height:70vh;padding:100px 0 60px}
  .hero-sub{font-size:1rem}
  .hero-actions{flex-direction:column}
  .hero-actions .btn{width:100%;justify-content:center}
  .cards-grid-2x2{grid-template-columns:1fr}
  .scenario-grid{grid-template-columns:1fr}
  .process-grid{grid-template-columns:1fr}
  .process-inner{padding:32px 20px}
  .footer-grid{grid-template-columns:1fr}
  .cta-actions{flex-direction:column}
  .cta-actions .btn{width:100%;justify-content:center}
  .footer-bottom{padding:20px 0}
  .mega-panel{width:100%;max-width:100%}
}
@media(max-width:480px){
  .container{padding:0 16px}
  .header-inner{gap:12px}
  .brand-text{font-size:1.1rem}
  .brand-icon{width:34px;height:34px;font-size:.95rem}
  .mega-trigger{padding:8px 14px;font-size:.8rem}
}
@media(prefers-reduced-motion:no-preference){
  .section-hero,.section-split,.section-cards,.section-scenarios,.section-process,.section-faq,.section-cta{
    scroll-margin-top:72px;
  }
}

/* roulang page: article */
:root {
      --primary: #00e5cc;
      --primary-rgb: 0, 229, 204;
      --secondary: #7c5cff;
      --secondary-rgb: 124, 92, 255;
      --pink: #ff2e88;
      --bg: #0b0f17;
      --card: #131a26;
      --card-hover: #1d2633;
      --panel: #101828;
      --border: rgba(255, 255, 255, 0.06);
      --text: #e6edf3;
      --text-secondary: #8fa3b8;
      --text-body: #c7d3df;
      --radius-card: 16px;
      --radius-btn: 8px;
      --shadow-card: 0 12px 40px rgba(0, 0, 0, 0.45), 0 0 0 1px rgba(255, 255, 255, 0.04);
      --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.45), 0 0 24px rgba(0, 229, 204, 0.18);
      --gradient-main: linear-gradient(135deg, #00e5cc, #7c5cff);
      --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      --font-num: "Rajdhani", "Inter", sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: var(--font-cn);
      background: var(--bg);
      color: var(--text);
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
    }

    body::before {
      content: '';
      position: fixed;
      inset: 0;
      pointer-events: none;
      z-index: 0;
      background:
        radial-gradient(ellipse 60% 40% at 15% 0%, rgba(124, 92, 255, 0.08), transparent 60%),
        radial-gradient(ellipse 50% 40% at 85% 10%, rgba(0, 229, 204, 0.06), transparent 60%),
        linear-gradient(rgba(255, 255, 255, 0.018) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.018) 1px, transparent 1px);
      background-size: 100% 100%, 100% 100%, 48px 48px, 48px 48px;
    }

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

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

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

    ul, ol {
      margin: 0;
      padding: 0;
    }

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

    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
      position: relative;
      z-index: 1;
    }

    .btn-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 14px 28px;
      background: linear-gradient(135deg, #00e5cc, #7c5cff);
      color: #04121a;
      font-weight: 700;
      font-size: 0.95rem;
      border-radius: var(--radius-btn);
      transition: all 0.3s ease;
      box-shadow: 0 4px 18px rgba(0, 229, 204, 0.18);
    }

    .btn-primary:hover {
      color: #04121a;
      box-shadow: 0 8px 30px rgba(0, 229, 204, 0.3);
      transform: translateY(-1px);
    }

    .btn-primary:active {
      transform: translateY(1px);
      box-shadow: 0 2px 12px rgba(0, 229, 204, 0.15);
    }

    .btn-ghost {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 13px 26px;
      background: transparent;
      color: var(--primary);
      font-weight: 700;
      font-size: 0.95rem;
      border-radius: var(--radius-btn);
      border: 1px solid var(--primary);
      transition: all 0.3s ease;
    }

    .btn-ghost:hover {
      background: rgba(0, 229, 204, 0.12);
      color: var(--primary);
      border-color: var(--primary);
    }

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

    /* ===== Header ===== */
    .main-header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 1000;
      background: rgba(11, 15, 23, 0.92);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-bottom: 1px solid rgba(0, 229, 204, 0.1);
      height: 72px;
      transition: background 0.3s ease;
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
      gap: 28px;
    }

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

    .brand-icon {
      width: 38px;
      height: 38px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: var(--gradient-main);
      border-radius: 10px;
      color: #04121a;
      font-size: 1.05rem;
      box-shadow: 0 0 18px rgba(0, 229, 204, 0.2);
    }

    .brand-text {
      font-size: 1.3rem;
      font-weight: 800;
      color: var(--text);
      letter-spacing: 0.5px;
      white-space: nowrap;
    }

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

    .nav-link {
      display: inline-flex;
      align-items: center;
      height: 72px;
      padding: 0 18px;
      color: var(--text-secondary);
      font-weight: 500;
      font-size: 0.95rem;
      position: relative;
      transition: color 0.25s ease;
      white-space: nowrap;
    }

    .nav-link::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 50%;
      transform: translateX(-50%) scaleX(0);
      width: 100%;
      height: 3px;
      background: linear-gradient(90deg, var(--primary), var(--secondary));
      border-radius: 3px 3px 0 0;
      transition: transform 0.3s ease;
    }

    .nav-link:hover {
      color: var(--text);
    }

    .nav-link:hover::after {
      transform: translateX(-50%) scaleX(1);
    }

    .nav-link.active {
      color: var(--primary);
    }

    .nav-link.active::after {
      transform: translateX(-50%) scaleX(1);
    }

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

    .mega-trigger {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 9px 18px;
      background: var(--card);
      border: 1px solid var(--border);
      border-radius: 8px;
      color: var(--text-body);
      font-size: 0.88rem;
      font-weight: 600;
      transition: all 0.3s ease;
      white-space: nowrap;
    }

    .mega-trigger:hover {
      border-color: rgba(0, 229, 204, 0.4);
      color: var(--primary);
      box-shadow: 0 0 14px rgba(0, 229, 204, 0.12);
    }

    .mega-trigger.active {
      border-color: var(--primary);
      color: var(--primary);
    }

    .hamburger-btn {
      display: none;
      flex-direction: column;
      justify-content: center;
      gap: 5px;
      width: 42px;
      height: 42px;
      padding: 10px;
      background: var(--card);
      border: 1px solid var(--border);
      border-radius: 8px;
    }

    .hamburger-btn span {
      display: block;
      width: 20px;
      height: 2px;
      background: var(--text);
      border-radius: 2px;
      transition: all 0.3s ease;
    }

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

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

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

    /* Mega Panel */
    .mega-panel {
      position: fixed;
      top: 72px;
      right: 24px;
      width: 540px;
      max-width: calc(100vw - 48px);
      background: var(--panel);
      border: 1px solid rgba(0, 229, 204, 0.2);
      border-radius: 16px;
      box-shadow: 0 24px 80px rgba(0, 0, 0, 0.5);
      opacity: 0;
      visibility: hidden;
      transform: translateY(-10px);
      transition: all 0.3s ease;
      z-index: 1001;
      padding: 28px;
    }

    .mega-panel.open {
      opacity: 1;
      visibility: visible;
      transform: translateY(0);
    }

    .mega-inner {
      display: flex;
      gap: 28px;
    }

    .mega-col {
      flex: 1;
      min-width: 0;
    }

    .mega-title {
      font-size: 0.75rem;
      font-weight: 700;
      letter-spacing: 2px;
      text-transform: uppercase;
      color: var(--primary);
      margin: 0 0 14px;
      padding-bottom: 8px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }

    .mega-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .mega-links a {
      color: var(--text-secondary);
      font-size: 0.9rem;
      transition: color 0.2s ease, transform 0.2s ease;
      display: inline-block;
    }

    .mega-links a:hover {
      color: var(--primary);
      transform: translateX(4px);
    }

    .mega-posts {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .mega-posts a {
      display: flex;
      flex-direction: column;
      gap: 4px;
      padding: 10px 12px;
      background: rgba(255, 255, 255, 0.02);
      border-radius: 8px;
      transition: background 0.25s ease;
      color: var(--text-secondary);
    }

    .mega-posts a:hover {
      background: rgba(0, 229, 204, 0.06);
      color: var(--text);
    }

    .mega-posts span {
      font-size: 0.85rem;
      color: var(--text-body);
    }

    .mega-posts time {
      font-size: 0.75rem;
      color: var(--text-secondary);
    }

    .mega-card {
      background: rgba(255, 255, 255, 0.02);
      border-radius: 10px;
      overflow: hidden;
      border: 1px solid rgba(255, 255, 255, 0.05);
    }

    .mega-card img {
      width: 100%;
      height: 90px;
      object-fit: cover;
      filter: saturate(0.9);
    }

    .mega-card h6 {
      padding: 12px 14px 4px;
      margin: 0;
      font-size: 0.88rem;
      color: var(--text);
    }

    .mega-card a {
      padding: 0 14px 12px;
      display: inline-block;
      font-size: 0.82rem;
      color: var(--primary);
    }

    /* ===== Article Hero ===== */
    .article-hero {
      position: relative;
      padding: 150px 0 70px;
      margin-top: 72px;
      background:
        linear-gradient(135deg, rgba(11, 15, 23, 0.88) 0%, rgba(11, 15, 23, 0.5) 55%, rgba(11, 15, 23, 0.82) 100%),
        url('/assets/images/backpic/back-2.webp') center 30% / cover no-repeat;
      border-bottom: 1px solid rgba(0, 229, 204, 0.1);
    }

    .breadcrumb-nav {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 8px;
      font-size: 0.85rem;
      color: var(--text-secondary);
      margin-bottom: 28px;
    }

    .breadcrumb-nav a {
      color: var(--text-secondary);
      transition: color 0.2s ease;
    }

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

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

    .breadcrumb-nav .current-title {
      color: var(--text);
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
      max-width: 420px;
    }

    .article-heading {
      max-width: 840px;
    }

    .article-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 5px 16px;
      background: rgba(124, 92, 255, 0.18);
      border: 1px solid rgba(124, 92, 255, 0.4);
      color: #c4b5fd;
      border-radius: 999px;
      font-size: 0.82rem;
      font-weight: 600;
      letter-spacing: 0.5px;
    }

    .article-title {
      font-size: clamp(2rem, 4vw, 2.8rem);
      font-weight: 800;
      line-height: 1.2;
      color: var(--text);
      margin: 18px 0 20px;
      letter-spacing: -0.5px;
    }

    .article-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 22px;
      color: var(--text-secondary);
      font-size: 0.86rem;
    }

    .article-meta .meta-item {
      display: inline-flex;
      align-items: center;
      gap: 7px;
    }

    .article-meta i {
      color: var(--primary);
      font-size: 0.9rem;
    }

    /* ===== Article Body ===== */
    .article-body-section {
      padding: 56px 0 24px;
    }

    .article-body-wrap {
      max-width: 720px;
      margin: 0 auto;
    }

    .article-content-body {
      color: var(--text-body);
      font-size: 1rem;
      line-height: 1.85;
    }

    .article-content-body p {
      margin-bottom: 1.5em;
      color: var(--text-body);
    }

    .article-content-body strong {
      color: var(--text);
      font-weight: 600;
    }

    .article-content-body h2 {
      font-size: clamp(1.4rem, 2.4vw, 1.85rem);
      font-weight: 700;
      color: var(--text);
      margin-top: 48px;
      margin-bottom: 20px;
      line-height: 1.35;
      padding-left: 14px;
      border-left: 3px solid var(--primary);
    }

    .article-content-body h3 {
      font-size: clamp(1.15rem, 2vw, 1.4rem);
      font-weight: 600;
      color: var(--text);
      margin-top: 36px;
      margin-bottom: 16px;
      line-height: 1.4;
    }

    .article-content-body h4 {
      font-size: 1.05rem;
      font-weight: 600;
      color: var(--text);
      margin-top: 28px;
      margin-bottom: 12px;
    }

    .article-content-body ul {
      margin: 16px 0 24px;
      padding: 0;
      list-style: none;
    }

    .article-content-body ul li {
      position: relative;
      padding-left: 24px;
      margin-bottom: 10px;
      color: var(--text-body);
    }

    .article-content-body ul li::before {
      content: '';
      position: absolute;
      left: 0;
      top: 10px;
      width: 8px;
      height: 8px;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      border-radius: 2px;
    }

    .article-content-body ol {
      padding-left: 28px;
      margin: 16px 0 24px;
      list-style: decimal;
    }

    .article-content-body ol li {
      margin-bottom: 10px;
      color: var(--text-body);
      padding-left: 4px;
    }

    .article-content-body ol li::marker {
      color: var(--primary);
      font-weight: 600;
    }

    .article-content-body img {
      border-radius: 12px;
      margin: 28px 0;
      box-shadow: var(--shadow-card);
    }

    .article-content-body figure {
      margin: 28px 0;
    }

    .article-content-body figcaption {
      text-align: center;
      color: var(--text-secondary);
      font-size: 0.85rem;
      padding-top: 12px;
    }

    .article-content-body blockquote {
      margin: 28px 0;
      padding: 20px 26px;
      background: var(--card);
      border-left: 3px solid var(--primary);
      border-radius: 0 12px 12px 0;
      color: var(--text-body);
      font-size: 0.98rem;
    }

    .article-content-body a {
      color: var(--primary);
      text-decoration: underline;
      text-underline-offset: 3px;
    }

    .article-content-body code {
      background: var(--card-hover);
      padding: 3px 8px;
      border-radius: 4px;
      color: var(--primary);
      font-size: 0.88em;
    }

    .article-content-body pre {
      background: #0e1622;
      padding: 22px;
      border-radius: 12px;
      overflow-x: auto;
      border: 1px solid var(--border);
      margin: 24px 0;
    }

    .article-content-body pre code {
      background: none;
      padding: 0;
    }

    .article-content-body table {
      width: 100%;
      border-collapse: collapse;
      margin: 28px 0;
      background: #0e1622;
      border-radius: 12px;
      overflow: hidden;
    }

    .article-content-body th {
      background: var(--card-hover);
      color: var(--primary);
      padding: 12px 16px;
      text-align: left;
      font-weight: 600;
      font-size: 0.9rem;
    }

    .article-content-body td {
      padding: 12px 16px;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      color: var(--text-body);
      font-size: 0.92rem;
    }

    .article-content-body tr:nth-child(even) td {
      background: var(--card);
    }

    .article-content-body hr {
      border: none;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      margin: 36px 0;
    }

    /* Empty state */
    .article-empty {
      text-align: center;
      padding: 60px 30px;
      background: var(--card);
      border: 1px solid var(--border);
      border-radius: var(--radius-card);
    }

    .article-empty i {
      font-size: 2.6rem;
      color: var(--text-secondary);
      margin-bottom: 16px;
      display: block;
    }

    .article-empty h3 {
      font-size: 1.3rem;
      margin: 0 0 12px;
      color: var(--text);
    }

    .article-empty p {
      color: var(--text-secondary);
      margin-bottom: 24px;
    }

    /* ===== Article Toolbar ===== */
    .article-toolbar-section {
      padding: 8px 0 48px;
    }

    .article-toolbar {
      max-width: 720px;
      margin: 0 auto;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      padding-top: 32px;
      border-top: 1px solid var(--border);
    }

    .tags-group {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .tag-item {
      display: inline-block;
      padding: 5px 14px;
      background: rgba(124, 92, 255, 0.12);
      border: 1px solid rgba(124, 92, 255, 0.3);
      color: #c4b5fd;
      border-radius: 999px;
      font-size: 0.8rem;
      font-weight: 500;
    }

    .share-group {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .share-label {
      font-size: 0.86rem;
      color: var(--text-secondary);
      margin-right: 4px;
    }

    .share-btn {
      width: 38px;
      height: 38px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: var(--card);
      border: 1px solid var(--border);
      border-radius: 50%;
      color: var(--text-secondary);
      font-size: 0.9rem;
      transition: all 0.25s ease;
    }

    .share-btn:hover {
      color: var(--primary);
      border-color: rgba(0, 229, 204, 0.4);
      box-shadow: 0 0 12px rgba(0, 229, 204, 0.1);
      transform: translateY(-2px);
    }

    /* ===== Related Posts ===== */
    .related-posts {
      padding: 80px 0 60px;
      background: linear-gradient(180deg, rgba(11, 15, 23, 0.5), rgba(11, 15, 23, 1));
      border-top: 1px solid var(--border);
    }

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

    .section-head h2 {
      font-size: clamp(1.6rem, 3vw, 2.2rem);
      font-weight: 700;
      color: var(--text);
      margin: 0;
      position: relative;
      padding-left: 16px;
    }

    .section-head h2::before {
      content: '';
      position: absolute;
      left: 0;
      top: 50%;
      transform: translateY(-50%);
      width: 4px;
      height: 24px;
      background: linear-gradient(180deg, var(--primary), var(--secondary));
      border-radius: 4px;
    }

    .section-head .section-more {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--text-secondary);
      font-size: 0.9rem;
      font-weight: 500;
      transition: color 0.25s ease, gap 0.25s ease;
    }

    .section-head .section-more:hover {
      color: var(--primary);
      gap: 10px;
    }

    .related-card {
      display: block;
      background: var(--card);
      border: 1px solid var(--border);
      border-radius: var(--radius-card);
      overflow: hidden;
      height: 100%;
      transition: all 0.3s ease;
    }

    .related-card:hover {
      background: var(--card-hover);
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(0, 229, 204, 0.25);
    }

    .related-cover {
      position: relative;
      overflow: hidden;
      height: 180px;
      background: #0e1622;
    }

    .related-cover img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.45s ease;
      filter: saturate(0.9);
    }

    .related-card:hover .related-cover img {
      transform: scale(1.04);
      filter: saturate(1.05);
    }

    .related-cover::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, transparent 45%, rgba(11, 15, 23, 0.65) 100%);
    }

    .related-badge {
      position: absolute;
      top: 14px;
      left: 14px;
      z-index: 2;
      padding: 4px 12px;
      background: rgba(124, 92, 255, 0.2);
      border: 1px solid rgba(124, 92, 255, 0.35);
      color: #c4b5fd;
      border-radius: 999px;
      font-size: 0.75rem;
      font-weight: 600;
    }

    .related-info {
      padding: 22px 22px 24px;
    }

    .related-info h3 {
      font-size: 1.05rem;
      font-weight: 600;
      color: var(--text);
      margin: 0 0 10px;
      line-height: 1.45;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .related-info p {
      color: var(--text-secondary);
      font-size: 0.88rem;
      line-height: 1.6;
      margin: 0 0 14px;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .related-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--primary);
      font-size: 0.86rem;
      font-weight: 600;
      transition: gap 0.25s ease;
    }

    .related-link:hover {
      gap: 10px;
    }

    .grid-margin-x > .cell {
      margin-bottom: 24px;
    }

    /* ===== Article CTA ===== */
    .article-cta-band {
      padding: 60px 0 100px;
    }

    .cta-inner {
      background: linear-gradient(135deg, rgba(0, 229, 204, 0.06), rgba(124, 92, 255, 0.1));
      border: 1px solid rgba(0, 229, 204, 0.18);
      border-radius: var(--radius-card);
      padding: 56px 40px;
      text-align: center;
      position: relative;
      overflow: hidden;
    }

    .cta-inner::before {
      content: '';
      position: absolute;
      top: 0;
      left: 50%;
      transform: translateX(-50%);
      width: 180px;
      height: 3px;
      background: var(--gradient-main);
      border-radius: 0 0 3px 3px;
    }

    .cta-inner h2 {
      font-size: clamp(1.6rem, 3vw, 2rem);
      font-weight: 700;
      color: var(--text);
      margin: 0 0 14px;
    }

    .cta-inner p {
      color: var(--text-secondary);
      font-size: 1rem;
      margin: 0 0 28px;
      max-width: 520px;
      margin-left: auto;
      margin-right: auto;
    }

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

    /* ===== Footer ===== */
    .site-footer {
      background: #0d111a;
      border-top: 1px solid rgba(0, 229, 204, 0.12);
      position: relative;
      z-index: 1;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
      gap: 40px;
      padding: 70px 0 50px;
    }

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

    .footer-description {
      color: var(--text-secondary);
      font-size: 0.88rem;
      line-height: 1.7;
      margin: 0 0 22px;
      max-width: 320px;
    }

    .footer-social {
      display: flex;
      gap: 10px;
    }

    .social-circle {
      width: 38px;
      height: 38px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: var(--card);
      border: 1px solid var(--border);
      border-radius: 50%;
      color: var(--text-secondary);
      font-size: 0.9rem;
      transition: all 0.25s ease;
    }

    .social-circle:hover {
      color: var(--primary);
      border-color: rgba(0, 229, 204, 0.4);
      transform: translateY(-3px);
      box-shadow: 0 0 12px rgba(0, 229, 204, 0.12);
    }

    .footer-title {
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--primary);
      margin: 0 0 18px;
      letter-spacing: 0.5px;
    }

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

    .footer-links a {
      color: var(--text-secondary);
      font-size: 0.88rem;
      transition: all 0.25s ease;
      display: inline-block;
    }

    .footer-links a:hover {
      color: var(--primary);
      transform: translateX(4px);
    }

    .footer-contact {
      display: flex;
      flex-direction: column;
      gap: 12px;
      list-style: none;
    }

    .footer-contact li {
      display: flex;
      align-items: center;
      gap: 10px;
      color: var(--text-secondary);
      font-size: 0.88rem;
    }

    .footer-contact i {
      color: var(--primary);
      width: 18px;
      text-align: center;
      font-size: 0.85rem;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding: 20px 0;
    }

    .footer-bottom p {
      margin: 0;
      text-align: center;
      color: var(--text-secondary);
      font-size: 0.82rem;
    }

    .footer-bottom a {
      color: var(--text-secondary);
      transition: color 0.2s ease;
    }

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

    /* ===== Media Queries ===== */
    @media screen and (max-width: 63.99875em) {
      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 36px;
      }

      .mega-panel {
        width: 480px;
      }
    }

    @media screen and (max-width: 39.99875em) {
      .container {
        padding: 0 18px;
      }

      .header-inner {
        height: 64px;
        gap: 12px;
      }

      .main-header {
        height: 64px;
      }

      .main-nav {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: rgba(11, 15, 23, 0.98);
        padding: 18px 20px;
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
        border-bottom: 1px solid rgba(0, 229, 204, 0.1);
        display: none;
        max-height: calc(100vh - 64px);
        overflow-y: auto;
      }

      .main-nav.open {
        display: flex;
      }

      .nav-link {
        height: auto;
        padding: 12px 8px;
        width: 100%;
        border-radius: 8px;
      }

      .nav-link::after {
        display: none;
      }

      .nav-link:hover {
        background: rgba(255, 255, 255, 0.04);
      }

      .nav-link.active {
        background: rgba(0, 229, 204, 0.08);
      }

      .mega-trigger {
        display: none;
      }

      .hamburger-btn {
        display: flex;
      }

      .mega-panel {
        position: fixed;
        top: 64px;
        right: 12px;
        left: 12px;
        width: auto;
        max-width: none;
        padding: 20px;
      }

      .mega-inner {
        flex-direction: column;
        gap: 20px;
      }

      .article-hero {
        padding: 120px 0 50px;
        margin-top: 64px;
      }

      .article-title {
        font-size: 1.55rem;
        line-height: 1.35;
      }

      .article-meta {
        gap: 14px;
        font-size: 0.8rem;
        flex-direction: column;
        align-items: flex-start;
      }

      .article-body-section {
        padding: 36px 0 16px;
      }

      .article-content-body {
        font-size: 0.95rem;
      }

      .article-toolbar {
        flex-direction: column;
        align-items: flex-start;
      }

      .related-posts {
        padding: 56px 0 40px;
      }

      .cta-inner {
        padding: 36px 22px;
      }

      .cta-inner h2 {
        font-size: 1.4rem;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
        padding: 50px 0 34px;
      }

      .footer-bottom p {
        font-size: 0.75rem;
        line-height: 1.6;
      }

      .article-content-body table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
      }
    }

    @media (prefers-reduced-motion: reduce) {
      * {
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
      }
    }

/* roulang page: category2 */
:root {
  --primary: #00E5CC;
  --secondary: #7C5CFF;
  --accent: #FF2E88;
  --bg: #0B0F17;
  --card: #131A26;
  --card-hover: #1D2633;
  --panel: #101828;
  --text: #E6EDF3;
  --text-dim: #8FA3B8;
  --border: rgba(255,255,255,.06);
  --radius-lg: 16px;
  --radius-md: 8px;
  --shadow: 0 12px 40px rgba(0,0,0,.45), 0 0 0 1px rgba(255,255,255,.04);
  --shadow-glow: 0 0 24px rgba(0,229,204,.18);
  --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-num: "Rajdhani", "Inter", sans-serif;
}

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

html { scroll-behavior: smooth; }

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

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 20% 10%, rgba(124,92,255,.12), transparent 42%),
    radial-gradient(circle at 80% 60%, rgba(0,229,204,.08), transparent 35%),
    radial-gradient(circle at 60% 85%, rgba(255,46,136,.05), transparent 30%),
    linear-gradient(rgba(255,255,255,.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.015) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 100% 100%, 48px 48px, 48px 48px;
}

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

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

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

.container { max-width: 1200px; margin: 0 auto; padding: 0 28px; position: relative; z-index: 1; }

/* ===== 按钮 ===== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #04121A;
  font-weight: 700;
  padding: 14px 32px;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all .3s ease;
  box-shadow: 0 4px 18px rgba(0,229,204,.15);
  font-size: 1rem;
  line-height: 1.4;
}
.btn-primary:hover {
  box-shadow: 0 6px 28px rgba(0,229,204,.28), var(--shadow-glow);
  transform: translateY(-2px);
  color: #04121A;
}
.btn-primary:active { transform: translateY(1px); }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0,229,204,.04);
  border: 1px solid rgba(0,229,204,.5);
  color: var(--primary);
  font-weight: 600;
  padding: 13px 30px;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all .3s ease;
  font-size: 1rem;
  line-height: 1.4;
}
.btn-ghost:hover {
  background: rgba(0,229,204,.15);
  color: var(--primary);
  box-shadow: 0 0 0 1px rgba(0,229,204,.3);
}

.btn-dark {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text);
  font-weight: 600;
  padding: 13px 30px;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all .3s ease;
}
.btn-dark:hover { border-color: rgba(0,229,204,.4); color: var(--primary); background: var(--card-hover); }

/* ===== 徽章 ===== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(124,92,255,.18);
  color: #C4B5FD;
  border: 1px solid rgba(124,92,255,.4);
  border-radius: 999px;
  padding: 5px 14px;
  font-size: .8rem;
  font-weight: 500;
  letter-spacing: .02em;
  white-space: nowrap;
}

.badge-primary {
  background: rgba(0,229,204,.14);
  color: var(--primary);
  border-color: rgba(0,229,204,.35);
}

.badge-accent {
  background: rgba(255,46,136,.14);
  color: #FF8CBC;
  border-color: rgba(255,46,136,.35);
}

/* ===== 顶部导航 ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: 72px;
  background: rgba(11,15,23,.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,.06);
  transition: background .3s ease;
}
.site-header.scrolled { background: rgba(11,15,23,.97); }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 28px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-icon {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(0,229,204,.2), rgba(124,92,255,.25));
  border: 1px solid rgba(0,229,204,.3);
  color: var(--primary);
  font-size: 1rem;
}
.brand-text {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: .02em;
  background: linear-gradient(135deg, #fff, var(--primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  white-space: nowrap;
}

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

.nav-link {
  display: inline-block;
  padding: 0 18px;
  height: 72px;
  line-height: 72px;
  color: var(--text-dim);
  font-weight: 500;
  font-size: .95rem;
  position: relative;
  transition: color .25s ease;
  white-space: nowrap;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 0;
  height: 3px;
  border-radius: 3px 3px 0 0;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  opacity: 0;
  transform: scaleX(.5);
  transition: all .25s ease;
}
.nav-link:hover { color: var(--text); }
.nav-link:hover::after { opacity: .6; transform: scaleX(.8); }
.nav-link.active { color: var(--primary); }
.nav-link.active::after { opacity: 1; transform: scaleX(1); }

/* Mega Menu */
.mega-wrap {
  position: relative;
  margin-left: 6px;
}
.mega-trigger {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 40px;
  padding: 0 20px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.04);
  color: var(--text);
  font-size: .9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all .3s ease;
}
.mega-trigger:hover {
  border-color: rgba(0,229,204,.5);
  background: rgba(0,229,204,.08);
  color: var(--primary);
}
.mega-trigger i { font-size: .8rem; transition: transform .3s ease; }

.mega-wrap:hover .mega-panel { opacity: 1; visibility: visible; transform: translateY(0); }
.mega-wrap:hover .mega-trigger i { transform: rotate(180deg); }

.mega-panel {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  width: 540px;
  background: var(--panel);
  border: 1px solid rgba(0,229,204,.15);
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 80px rgba(0,0,0,.5);
  padding: 28px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all .3s ease;
  z-index: 999;
}
.mega-panel::before {
  content: "";
  position: absolute;
  top: -6px;
  right: 40px;
  width: 12px;
  height: 12px;
  background: var(--panel);
  border-left: 1px solid rgba(0,229,204,.15);
  border-top: 1px solid rgba(0,229,204,.15);
  transform: rotate(45deg);
}
.mega-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 24px; }
.mega-heading {
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .14em;
  color: var(--primary);
  font-weight: 700;
  margin-bottom: 12px;
}
.mega-links { list-style: none; display: grid; gap: 8px; }
.mega-links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--text-dim);
  font-size: .88rem;
  padding: 8px 12px;
  border-radius: 8px;
  transition: all .2s ease;
}
.mega-links a:hover { background: rgba(0,229,204,.06); color: var(--primary); }
.mega-links a i { font-size: .75rem; opacity: 0; transition: opacity .2s ease; }
.mega-links a:hover i { opacity: 1; }
.mega-news { display: grid; gap: 12px; }
.mega-news-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 10px 12px;
  border-radius: 8px;
  background: rgba(255,255,255,.02);
  border: 1px solid transparent;
  transition: all .25s ease;
  color: var(--text);
}
.mega-news-item:hover { border-color: rgba(0,229,204,.25); background: rgba(0,229,204,.04); }
.mega-news-item .meta { font-size: .75rem; color: var(--text-dim); }
.mega-news-item .desc { font-size: .88rem; color: var(--text); }
.mega-entry {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 14px;
  background: rgba(124,92,255,.08);
  border: 1px solid rgba(124,92,255,.2);
  border-radius: 10px;
  padding: 12px 16px;
  cursor: pointer;
  transition: all .25s ease;
  color: var(--text);
}
.mega-entry:hover { background: rgba(124,92,255,.15); border-color: rgba(124,92,255,.4); }
.mega-entry img { width: 52px; height: 52px; border-radius: 8px; object-fit: cover; }
.mega-entry .entry-info { flex: 1; }
.mega-entry .entry-title { font-size: .9rem; font-weight: 600; }
.mega-entry .entry-cta { font-size: .8rem; color: var(--primary); display: flex; align-items: center; gap: 4px; }

/* 移动端汉堡 */
.mobile-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.04);
  border-radius: 8px;
  color: var(--text);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

/* ===== 页面 Banner ===== */
.page-banner {
  position: relative;
  padding: 160px 0 90px;
  background-image: url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  overflow: hidden;
}
.page-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, rgba(11,15,23,.94) 12%, rgba(11,15,23,.78) 50%, rgba(124,92,255,.3) 100%);
}
.page-banner::after {
  content: "";
  position: absolute;
  right: -60px;
  top: 50%;
  transform: translateY(-50%);
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,229,204,.14), transparent 65%);
  pointer-events: none;
}

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

.breadcrumb { display: flex; flex-wrap: wrap; gap: 6px; color: var(--text-dim); font-size: .85rem; margin-bottom: 20px; align-items: center; }
.breadcrumb a { color: var(--text-dim); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { opacity: .5; font-size: .75rem; }
.breadcrumb .cur { color: var(--text); }

.page-banner h1 {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 18px;
  background: linear-gradient(135deg, #fff 30%, var(--primary) 70%, var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: .01em;
}

.banner-sub {
  font-size: 1.08rem;
  color: var(--text-dim);
  max-width: 640px;
  line-height: 1.8;
  margin-bottom: 32px;
}

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

/* ===== 核心图文区 ===== */
.feat-section { padding: 90px 0 50px; position: relative; }

.feat-split { display: flex; align-items: center; gap: 64px; }

.feat-media {
  flex: 1.1;
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.feat-media img { width: 100%; height: 420px; object-fit: cover; }
.feat-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,229,204,.12), rgba(124,92,255,.22));
  mix-blend-mode: screen;
  pointer-events: none;
}
.feat-media .media-tag {
  position: absolute;
  top: 18px;
  left: 18px;
  z-index: 2;
}

.feat-info { flex: 1; }

.feat-info .section-label {
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .16em;
  color: var(--primary);
  font-weight: 700;
  margin-bottom: 10px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.feat-info h2 {
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 18px;
  color: var(--text);
}

.feat-info p { color: var(--text-dim); margin-bottom: 20px; font-size: 1rem; }

.feat-list { list-style: none; margin: 0 0 28px; display: grid; gap: 14px; }

.feat-list li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 12px 16px;
  border-radius: 10px;
  background: var(--card);
  border: 1px solid transparent;
  transition: all .3s ease;
}
.feat-list li:hover { background: var(--card-hover); border-color: rgba(0,229,204,.2); }
.feat-list .lt-icon {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  border-radius: 8px;
  background: rgba(0,229,204,.1);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .85rem;
  border: 1px solid rgba(0,229,204,.15);
}
.feat-list .lt-text strong { display: block; font-size: .95rem; color: var(--text); margin-bottom: 2px; }
.feat-list .lt-text span { font-size: .85rem; color: var(--text-dim); }

/* ===== 2×2 场景卡 ===== */
.scenario-section { padding: 70px 0 90px; position: relative; }

.section-head { text-align: center; margin-bottom: 52px; }
.section-head .section-label {
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .16em;
  color: var(--primary);
  font-weight: 700;
  margin-bottom: 12px;
  display: inline-block;
}
.section-head h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); font-weight: 700; margin-bottom: 14px; color: var(--text); }
.section-head p { color: var(--text-dim); max-width: 640px; margin: 0 auto; font-size: 1rem; }

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

.scenario-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all .35s ease;
  display: flex;
  flex-direction: column;
}
.scenario-card:hover {
  background: var(--card-hover);
  border-color: rgba(0,229,204,.3);
  box-shadow: var(--shadow-glow);
  transform: translateY(-4px);
}

.scenario-card .card-img { position: relative; height: 200px; overflow: hidden; }
.scenario-card .card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.scenario-card:hover .card-img img { transform: scale(1.05); }
.scenario-card .card-img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 40%, rgba(11,15,23,.7));
}
.scenario-card .card-img .badge { position: absolute; top: 16px; left: 16px; z-index: 2; }

.card-body { padding: 26px 28px; flex: 1; }
.card-body h3 { font-size: 1.25rem; font-weight: 700; margin-bottom: 8px; color: var(--text); }
.card-body p { color: var(--text-dim); font-size: .92rem; margin-bottom: 16px; }
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: .88rem;
  font-weight: 600;
  color: var(--primary);
  transition: gap .3s ease;
}
.card-link:hover { gap: 12px; }

/* ===== 数据条 ===== */
.stats-bar { padding: 70px 0; position: relative; }
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}
.stat-item {
  padding: 36px 24px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all .3s ease;
}
.stat-item:hover { border-color: rgba(0,229,204,.3); background: var(--card-hover); }
.stat-num {
  font-family: var(--font-num);
  font-size: 2.8rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.2;
  display: block;
  margin-bottom: 8px;
}
.stat-item .stat-num em { font-style: normal; color: var(--accent); }
.stat-label { color: var(--text-dim); font-size: .88rem; }
.stat-icon { font-size: 1.4rem; color: var(--secondary); margin-bottom: 12px; display: block; }

/* ===== FAQ ===== */
.faq-section { padding: 90px 0; position: relative; }
.faq-wrap { max-width: 820px; margin: 0 auto; display: grid; gap: 16px; }

.faq-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  transition: border-color .3s ease;
}
.faq-item.open { border-color: rgba(0,229,204,.4); }

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  background: transparent;
  border: none;
  color: var(--text);
  font-size: 1rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  transition: background .3s ease;
}
.faq-question:hover { background: rgba(255,255,255,.02); }
.faq-question .q-icon { position: relative; width: 20px; height: 20px; flex-shrink: 0; }
.faq-question .q-icon::before,
.faq-question .q-icon::after {
  content: "";
  position: absolute;
  background: var(--primary);
  transition: all .3s ease;
}
.faq-question .q-icon::before { left: 0; right: 0; top: 50%; height: 2px; transform: translateY(-50%); }
.faq-question .q-icon::after { top: 0; bottom: 0; left: 50%; width: 2px; transform: translateX(-50%); }
.faq-item.open .faq-question .q-icon::after { transform: translateX(-50%) scaleY(0); }

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease;
}
.faq-answer-inner { padding: 0 24px 22px; color: var(--text-dim); font-size: .92rem; line-height: 1.8; }

/* ===== CTA 区 ===== */
.cta-section { padding: 90px 0; position: relative; overflow: hidden; }
.cta-banner {
  position: relative;
  background-image: url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center;
  border-radius: var(--radius-lg);
  padding: 60px 56px;
  overflow: hidden;
  border: 1px solid var(--border);
}
.cta-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(11,15,23,.95), rgba(19,26,38,.88) 60%, rgba(124,92,255,.35));
}
.cta-banner::after {
  content: "";
  position: absolute;
  right: -80px;
  top: -80px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,229,204,.3), transparent 65%);
  pointer-events: none;
}
.cta-banner .inner { position: relative; z-index: 2; display: flex; justify-content: space-between; align-items: center; gap: 40px; flex-wrap: wrap; }
.cta-text h2 { font-size: clamp(1.6rem, 3vw, 2.3rem); font-weight: 700; margin-bottom: 10px; color: #fff; }
.cta-text p { color: var(--text-dim); font-size: 1rem; max-width: 480px; }
.cta-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ===== 页脚 ===== */
.site-footer { background: rgba(11,15,23,.9); border-top: 1px solid rgba(255,255,255,.06); padding-top: 70px; position: relative; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 40px; }
.footer-brand .brand-logo { margin-bottom: 16px; }
.footer-description { color: var(--text-dim); font-size: .9rem; line-height: 1.7; margin-bottom: 20px; max-width: 300px; }

.footer-social { display: flex; gap: 10px; }
.social-circle {
  width: 38px; height: 38px;
  border-radius: 50%;
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-dim);
  font-size: .9rem;
  background: var(--card);
  transition: all .3s ease;
}
.social-circle:hover { color: var(--primary); border-color: rgba(0,229,204,.4); background: rgba(0,229,204,.06); transform: translateY(-3px); }

.footer-title {
  font-size: .8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--primary);
  margin-bottom: 18px;
}

.footer-links { list-style: none; display: grid; gap: 10px; }
.footer-links a { color: var(--text-dim); font-size: .9rem; transition: all .3s ease; }
.footer-links a:hover { color: var(--primary); padding-left: 4px; }

.footer-contact { list-style: none; display: grid; gap: 12px; }
.footer-contact li {
  display: flex; align-items: center; gap: 12px;
  color: var(--text-dim);
  font-size: .9rem;
}
.footer-contact i { color: var(--primary); width: 16px; text-align: center; flex-shrink: 0; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.06);
  padding: 22px 0;
}
.footer-bottom .container { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; }
.footer-bottom p { color: var(--text-dim); font-size: .82rem; margin: 0; }
.footer-bottom a { color: var(--text-dim); transition: color .3s ease; }
.footer-bottom a:hover { color: var(--primary); }

/* ===== 响应式 ===== */
@media (max-width: 64em) {
  .feat-split { flex-direction: column; gap: 40px; }
  .feat-media img { height: 340px; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .mega-panel { width: 460px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 40em) {
  .mobile-toggle { display: flex; }
  .main-nav {
    position: fixed;
    top: 72px;
    left: 0; right: 0;
    background: rgba(11,15,23,.98);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height .4s ease;
    border-bottom: 1px solid var(--border);
    z-index: 1000;
  }
  .main-nav.open { max-height: 460px; }
  .nav-link { height: auto; line-height: 1.6; padding: 14px 28px; border-bottom: 1px solid rgba(255,255,255,.03); }
  .nav-link::after { display: none; }
  .mega-wrap { display: none; }
  .mobile-mega { display: none; }
  .page-banner { padding: 130px 0 60px; }
  .banner-actions, .cta-actions { flex-direction: column; width: 100%; }
  .btn-primary, .btn-ghost { width: 100%; justify-content: center; }
  .scenario-grid { grid-template-columns: 1fr; }
  .stats-grid { gap: 12px; }
  .stat-num { font-size: 2.2rem; }
  .cta-banner { padding: 40px 24px; }
  .footer-grid { grid-template-columns: 1fr; }
  .mega-panel { display: none; }
}

@media (max-width: 30em) {
  .header-inner { padding: 0 16px; }
  .container { padding: 0 16px; }
  .brand-text { font-size: 1.05rem; }
  .cta-banner { padding: 30px 20px; }
}

/* 移动端 Mega 简单面板 */

/* roulang page: category3 */
/* ============================================================
       Design Variables
    ============================================================ */
    :root {
      --primary: #00E5CC;
      --secondary: #7C5CFF;
      --accent: #FF2E88;
      --bg: #0B0F17;
      --bg-card: #131A26;
      --bg-card-hover: #1D2633;
      --panel: #101828;
      --text: #E6EDF3;
      --text-weak: #8FA3B8;
      --border: rgba(255, 255, 255, .08);
      --border-primary: rgba(0, 229, 204, .35);
      --radius-lg: 16px;
      --radius-sm: 8px;
      --radius-pill: 999px;
      --shadow: 0 12px 40px rgba(0, 0, 0, .45), 0 0 0 1px rgba(255, 255, 255, .04);
      --shadow-primary: 0 0 24px rgba(0, 229, 204, .18);
      --transition: all .3s ease;
      --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    }

    /* ============================================================
       Base Reset
    ============================================================ */
    *, *::before, *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      font-family: var(--font-cn);
      background: var(--bg);
      color: var(--text);
      line-height: 1.75;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
      background-image:
        radial-gradient(circle at 20% 10%, rgba(0, 229, 204, .06) 0, transparent 30%),
        radial-gradient(circle at 80% 40%, rgba(124, 92, 255, .05) 0, transparent 28%),
        linear-gradient(180deg, var(--bg) 0%, #0E1420 100%);
      background-attachment: fixed;
    }
    img {
      max-width: 100%;
      display: block;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: var(--transition);
    }
    ul, ol {
      list-style: none;
    }
    button, input, select, textarea {
      font-family: inherit;
      font-size: inherit;
      outline: none;
      border: none;
      background: none;
    }
    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* ============================================================
       Header & Navigation
    ============================================================ */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 72px;
      background: rgba(11, 15, 23, .92);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(255, 255, 255, .06);
      z-index: 1000;
      transition: background .3s ease, box-shadow .3s ease;
    }
    .site-header.scrolled {
      background: rgba(11, 15, 23, .98);
      box-shadow: 0 8px 32px rgba(0, 0, 0, .35);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
      gap: 32px;
    }
    .brand-logo {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      flex-shrink: 0;
    }
    .brand-icon {
      width: 40px;
      height: 40px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      border-radius: 10px;
      color: #04121A;
      font-size: 18px;
      box-shadow: 0 4px 16px rgba(0, 229, 204, .25);
    }
    .brand-text {
      font-size: 1.25rem;
      font-weight: 800;
      color: var(--text);
      letter-spacing: .5px;
      white-space: nowrap;
    }
    .main-nav {
      display: flex;
      align-items: center;
      gap: 6px;
      margin: 0 auto;
    }
    .nav-link {
      position: relative;
      display: inline-flex;
      align-items: center;
      height: 72px;
      padding: 0 18px;
      font-size: 1rem;
      font-weight: 500;
      color: var(--text-weak);
      white-space: nowrap;
      transition: color .25s ease;
    }
    .nav-link::after {
      content: '';
      position: absolute;
      left: 50%;
      bottom: 0;
      transform: translateX(-50%) scaleX(0);
      width: 80%;
      height: 3px;
      background: linear-gradient(90deg, var(--primary), var(--secondary));
      border-radius: 3px 3px 0 0;
      transition: transform .3s ease;
      transform-origin: center;
    }
    .nav-link:hover,
    .nav-link.active {
      color: var(--text);
    }
    .nav-link:hover::after,
    .nav-link.active::after {
      transform: translateX(-50%) scaleX(1);
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 16px;
      flex-shrink: 0;
    }
    .mega-wrap {
      position: relative;
    }
    .mega-trigger {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 10px 20px;
      border: 1px solid rgba(255, 255, 255, .14);
      border-radius: var(--radius-pill);
      color: var(--text);
      font-size: .95rem;
      font-weight: 500;
      cursor: pointer;
      background: rgba(255, 255, 255, .03);
      transition: var(--transition);
    }
    .mega-trigger i {
      font-size: .8rem;
      color: var(--text-weak);
      transition: transform .3s ease;
    }
    .mega-trigger:hover {
      border-color: var(--border-primary);
      box-shadow: 0 0 16px rgba(0, 229, 204, .12);
    }
    .mega-wrap.active .mega-trigger {
      border-color: var(--border-primary);
    }
    .mega-wrap.active .mega-trigger i {
      transform: rotate(180deg);
      color: var(--primary);
    }
    .mega-panel {
      position: absolute;
      top: calc(100% + 12px);
      right: 0;
      width: 520px;
      max-width: calc(100vw - 32px);
      background: var(--panel);
      border: 1px solid rgba(0, 229, 204, .16);
      border-radius: 16px;
      padding: 28px 30px;
      box-shadow: 0 24px 80px rgba(0, 0, 0, .5);
      opacity: 0;
      visibility: hidden;
      transform: translateY(8px);
      transition: opacity .3s ease, transform .3s ease, visibility .3s;
      z-index: 999;
    }
    .mega-wrap.active .mega-panel {
      opacity: 1;
      visibility: visible;
      transform: translateY(0);
    }
    .mega-panel::before {
      content: '';
      position: absolute;
      top: -8px;
      right: 40px;
      width: 16px;
      height: 16px;
      background: var(--panel);
      border-left: 1px solid rgba(0, 229, 204, .16);
      border-top: 1px solid rgba(0, 229, 204, .16);
      transform: rotate(45deg);
    }
    .mega-grid {
      display: grid;
      grid-template-columns: 1.1fr 1.2fr 1fr;
      gap: 32px;
    }
    .mega-title {
      font-size: .75rem;
      font-weight: 700;
      letter-spacing: .08em;
      text-transform: uppercase;
      color: var(--primary);
      margin-bottom: 16px;
    }
    .mega-links li {
      margin-bottom: 10px;
    }
    .mega-links a {
      color: var(--text-weak);
      font-size: .95rem;
      transition: var(--transition);
    }
    .mega-links a:hover {
      color: var(--primary);
      padding-left: 6px;
    }
    .mega-news li {
      display: flex;
      gap: 10px;
      margin-bottom: 14px;
      font-size: .9rem;
      line-height: 1.5;
    }
    .mega-date {
      flex-shrink: 0;
      font-size: .78rem;
      color: var(--text-weak);
      background: rgba(255, 255, 255, .04);
      padding: 2px 8px;
      border-radius: 6px;
      height: fit-content;
      margin-top: 2px;
    }
    .mega-news a {
      color: var(--text);
    }
    .mega-news a:hover {
      color: var(--primary);
    }
    .mega-entry {
      display: flex;
      flex-direction: column;
      gap: 10px;
      background: var(--bg-card);
      border-radius: 12px;
      padding: 12px;
      border: 1px solid rgba(255, 255, 255, .06);
      transition: var(--transition);
    }
    .mega-entry:hover {
      border-color: var(--border-primary);
      background: var(--bg-card-hover);
    }
    .mega-entry img {
      border-radius: 8px;
      height: 90px;
      object-fit: cover;
      width: 100%;
    }
    .mega-entry span {
      font-size: .9rem;
      font-weight: 600;
      color: var(--text);
    }
    .mega-entry em {
      font-style: normal;
      font-size: .8rem;
      color: var(--primary);
    }
    .mobile-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border: 1px solid rgba(255, 255, 255, .14);
      border-radius: var(--radius-sm);
      color: var(--text);
      font-size: 1.1rem;
      cursor: pointer;
      align-items: center;
      justify-content: center;
    }

    /* ============================================================
       Buttons
    ============================================================ */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 14px 30px;
      border-radius: var(--radius-sm);
      font-size: 1rem;
      font-weight: 700;
      line-height: 1;
      cursor: pointer;
      transition: var(--transition);
      white-space: nowrap;
    }
    .btn-primary {
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      color: #04121A;
      box-shadow: 0 4px 20px rgba(0, 229, 204, .2);
    }
    .btn-primary:hover {
      filter: brightness(1.1);
      box-shadow: 0 4px 30px rgba(0, 229, 204, .35);
      transform: translateY(-1px);
    }
    .btn-primary:active {
      transform: translateY(1px);
      box-shadow: none;
    }
    .btn-ghost {
      border: 1px solid var(--primary);
      color: var(--primary);
      background: transparent;
    }
    .btn-ghost:hover {
      background: rgba(0, 229, 204, .12);
      box-shadow: 0 0 18px rgba(0, 229, 204, .15);
      transform: translateY(-1px);
    }
    .btn-ghost:active {
      transform: translateY(1px);
    }

    /* ============================================================
       Page Hero
    ============================================================ */
    .page-hero {
      position: relative;
      padding: 180px 0 100px;
      background-image: url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
    }
    .page-hero::before {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(100deg, rgba(11, 15, 23, .94) 20%, rgba(11, 15, 23, .65) 60%, rgba(124, 92, 255, .25) 100%);
    }
    .page-hero .container {
      position: relative;
      z-index: 2;
    }
    .hero-inner {
      max-width: 720px;
    }
    .hero-eyebrow {
      display: inline-block;
      font-size: .85rem;
      font-weight: 700;
      letter-spacing: .12em;
      text-transform: uppercase;
      color: var(--primary);
      margin-bottom: 18px;
      background: rgba(0, 229, 204, .1);
      border: 1px solid rgba(0, 229, 204, .2);
      padding: 6px 16px;
      border-radius: 999px;
    }
    .page-hero h1 {
      font-size: clamp(2.2rem, 5vw, 3.8rem);
      font-weight: 800;
      line-height: 1.15;
      margin-bottom: 20px;
      background: linear-gradient(120deg, #ffffff 0%, var(--primary) 60%, var(--secondary) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    .hero-sub {
      font-size: 1.15rem;
      color: #B8C9D9;
      max-width: 620px;
      margin-bottom: 36px;
      line-height: 1.8;
    }
    .hero-actions {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
    }

    /* ============================================================
       Section Head
    ============================================================ */
    .section-head {
      text-align: center;
      max-width: 680px;
      margin: 0 auto 56px;
    }
    .section-eyebrow {
      display: inline-block;
      font-size: .8rem;
      font-weight: 700;
      letter-spacing: .12em;
      text-transform: uppercase;
      color: var(--primary);
      margin-bottom: 12px;
      background: rgba(0, 229, 204, .1);
      padding: 5px 16px;
      border-radius: 999px;
    }
    .section-head h2 {
      font-size: clamp(1.6rem, 3vw, 2.4rem);
      font-weight: 700;
      line-height: 1.25;
      margin-bottom: 14px;
      color: var(--text);
    }
    .section-desc {
      color: var(--text-weak);
      font-size: 1rem;
    }

    /* ============================================================
       Timeline Section
    ============================================================ */
    .process-section {
      padding: 100px 0 80px;
      background: linear-gradient(180deg, var(--bg) 0%, #0F1522 100%);
    }
    .timeline-wrap {
      position: relative;
      max-width: 860px;
      margin: 0 auto;
    }
    .timeline-wrap::before {
      content: '';
      position: absolute;
      left: 18px;
      top: 0;
      bottom: 0;
      width: 3px;
      background: linear-gradient(180deg, var(--primary), var(--secondary), rgba(0, 229, 204, .2));
      border-radius: 3px;
    }
    .timeline-item {
      position: relative;
      padding-left: 64px;
      margin-bottom: 44px;
    }
    .timeline-item:last-child {
      margin-bottom: 0;
    }
    .timeline-item::before {
      content: '';
      position: absolute;
      left: 10px;
      top: 30px;
      width: 19px;
      height: 19px;
      border-radius: 50%;
      background: var(--primary);
      border: 5px solid var(--bg);
      box-shadow: 0 0 0 2px var(--primary), 0 0 20px rgba(0, 229, 204, .45);
      z-index: 2;
    }
    .timeline-item:nth-child(2)::before {
      background: var(--secondary);
      box-shadow: 0 0 0 2px var(--secondary), 0 0 20px rgba(124, 92, 255, .4);
    }
    .timeline-item:nth-child(3)::before {
      background: var(--accent);
      box-shadow: 0 0 0 2px var(--accent), 0 0 20px rgba(255, 46, 136, .35);
    }
    .timeline-item:nth-child(5)::before {
      background: var(--secondary);
      box-shadow: 0 0 0 2px var(--secondary), 0 0 20px rgba(124, 92, 255, .4);
    }
    .timeline-card {
      background: var(--bg-card);
      border: 1px solid rgba(255, 255, 255, .06);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow);
      transition: var(--transition);
    }
    .timeline-card:hover {
      transform: translateY(-4px);
      background: var(--bg-card-hover);
      border-color: rgba(0, 229, 204, .3);
      box-shadow: var(--shadow-primary);
    }
    .timeline-media {
      position: relative;
      overflow: hidden;
      height: 220px;
    }
    .timeline-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform .5s ease;
    }
    .timeline-card:hover .timeline-media img {
      transform: scale(1.04);
    }
    .timeline-media::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, transparent 50%, rgba(11, 15, 23, .8));
    }
    .stage-badge {
      position: absolute;
      left: 20px;
      bottom: 16px;
      z-index: 2;
      display: inline-block;
      padding: 7px 14px;
      border-radius: 999px;
      font-size: .8rem;
      font-weight: 700;
      backdrop-filter: blur(8px);
      border: 1px solid rgba(255, 255, 255, .18);
    }
    .stage-cyan {
      background: rgba(0, 229, 204, .85);
      color: #04121A;
    }
    .stage-purple {
      background: rgba(124, 92, 255, .9);
      color: #fff;
    }
    .stage-pink {
      background: rgba(255, 46, 136, .9);
      color: #fff;
    }
    .timeline-body {
      padding: 24px 28px 26px;
    }
    .tag {
      display: inline-block;
      padding: 5px 12px;
      border-radius: 999px;
      font-size: .78rem;
      font-weight: 600;
      margin-bottom: 12px;
      background: rgba(124, 92, 255, .16);
      color: #C4B5FD;
      border: 1px solid rgba(124, 92, 255, .35);
    }
    .timeline-body h3 {
      font-size: 1.3rem;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text);
    }
    .timeline-body p {
      color: var(--text-weak);
      font-size: .98rem;
    }

    /* ============================================================
       Stats
    ============================================================ */
    .stats-section {
      padding: 80px 0;
      background: linear-gradient(135deg, rgba(0, 229, 204, .05), rgba(124, 92, 255, .05));
      border-top: 1px solid rgba(255, 255, 255, .04);
      border-bottom: 1px solid rgba(255, 255, 255, .04);
    }
    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .stat-item {
      background: rgba(19, 26, 38, .6);
      border: 1px solid rgba(255, 255, 255, .05);
      border-radius: var(--radius-lg);
      padding: 40px 28px;
      text-align: center;
      transition: var(--transition);
      position: relative;
      overflow: hidden;
    }
    .stat-item::before {
      content: '';
      position: absolute;
      top: -1px;
      left: 50%;
      transform: translateX(-50%);
      width: 60px;
      height: 3px;
      background: linear-gradient(90deg, var(--primary), var(--secondary));
      border-radius: 0 0 4px 4px;
      opacity: 0;
      transition: opacity .3s ease;
    }
    .stat-item:hover {
      background: var(--bg-card-hover);
      transform: translateY(-3px);
    }
    .stat-item:hover::before {
      opacity: 1;
    }
    .stat-icon {
      font-size: 1.4rem;
      color: var(--primary);
      margin-bottom: 8px;
    }
    .stat-value {
      display: block;
      font-size: 2.4rem;
      font-weight: 800;
      color: var(--text);
      line-height: 1.2;
      margin-bottom: 6px;
    }
    .stat-value em {
      font-style: normal;
      color: var(--primary);
    }
    .stat-label {
      font-size: .9rem;
      color: var(--text-weak);
    }

    /* ============================================================
       Capabilities
    ============================================================ */
    .cap-section {
      padding: 100px 0;
    }
    .cap-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }
    .cap-card {
      background: var(--bg-card);
      border: 1px solid rgba(255, 255, 255, .06);
      border-radius: var(--radius-lg);
      padding: 36px 32px;
      transition: var(--transition);
      position: relative;
      overflow: hidden;
    }
    .cap-card::after {
      content: '';
      position: absolute;
      right: -40px;
      top: -40px;
      width: 120px;
      height: 120px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(124, 92, 255, .12) 0%, transparent 70%);
      pointer-events: none;
    }
    .cap-card:hover {
      background: var(--bg-card-hover);
      border-color: var(--border-primary);
      transform: translateY(-4px);
      box-shadow: var(--shadow-primary);
    }
    .cap-icon {
      width: 56px;
      height: 56px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      border-radius: 14px;
      background: linear-gradient(135deg, rgba(0, 229, 204, .12), rgba(124, 92, 255, .12));
      color: var(--primary);
      margin-bottom: 20px;
    }
    .cap-card h3 {
      font-size: 1.2rem;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text);
    }
    .cap-card p {
      color: var(--text-weak);
      font-size: .95rem;
    }

    /* ============================================================
       Scenarios
    ============================================================ */
    .scenario-section {
      padding: 100px 0;
      background: #0E1420;
      border-top: 1px solid rgba(255, 255, 255, .03);
      border-bottom: 1px solid rgba(255, 255, 255, .03);
    }
    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .scenario-card {
      position: relative;
      background: var(--bg-card);
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid rgba(255, 255, 255, .06);
      transition: var(--transition);
      box-shadow: var(--shadow);
    }
    .scenario-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-primary);
      border-color: rgba(0, 229, 204, .3);
    }
    .scenario-card img {
      width: 100%;
      height: 200px;
      object-fit: cover;
    }
    .scenario-body {
      padding: 26px 28px;
      background: linear-gradient(180deg, transparent, rgba(11, 15, 23, .6));
    }
    .scenario-body h3 {
      font-size: 1.2rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text);
    }
    .scenario-body p {
      color: var(--text-weak);
      font-size: .9rem;
      margin-bottom: 16px;
    }
    .scenario-body a {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--primary);
      font-weight: 600;
      font-size: .9rem;
    }
    .scenario-body a i {
      transition: transform .25s ease;
    }
    .scenario-body a:hover {
      color: var(--secondary);
    }
    .scenario-body a:hover i {
      transform: translateX(4px);
    }

    /* ============================================================
       FAQ
    ============================================================ */
    .faq-section {
      padding: 100px 0;
    }
    .faq-list {
      max-width: 780px;
      margin: 0 auto;
    }
    .faq-item {
      background: var(--bg-card);
      border: 1px solid rgba(255, 255, 255, .06);
      border-radius: 12px;
      margin-bottom: 16px;
      overflow: hidden;
      transition: border-color .3s ease, background .3s ease;
    }
    .faq-item:hover {
      background: var(--bg-card-hover);
      border-color: rgba(0, 229, 204, .2);
    }
    .faq-item[open] {
      border-color: rgba(0, 229, 204, .35);
      background: var(--bg-card);
    }
    .faq-item summary {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 18px 28px;
      font-size: 1.02rem;
      font-weight: 600;
      color: var(--text);
      cursor: pointer;
      list-style: none;
      user-select: none;
      position: relative;
    }
    .faq-item summary::-webkit-details-marker {
      display: none;
    }
    .faq-item summary::after {
      content: '+';
      font-size: 1.6rem;
      font-weight: 400;
      color: var(--primary);
      transition: transform .3s ease;
      line-height: 1;
      flex-shrink: 0;
    }
    .faq-item[open] summary::after {
      content: '−';
      transform: rotate(180deg);
    }
    .faq-item[open] summary {
      border-bottom: 1px solid rgba(255, 255, 255, .05);
    }
    .faq-item[open] summary::before {
      content: '';
      position: absolute;
      left: 0;
      top: 0;
      bottom: 0;
      width: 3px;
      background: linear-gradient(180deg, var(--primary), var(--secondary));
      border-radius: 3px;
    }
    .faq-answer {
      padding: 18px 28px 24px;
      color: var(--text-weak);
      font-size: .95rem;
    }

    /* ============================================================
       Entry Bar
    ============================================================ */
    .entry-bar {
      padding: 60px 0;
      background: linear-gradient(135deg, rgba(0, 229, 204, .08), rgba(124, 92, 255, .1));
      border-top: 1px solid rgba(255, 255, 255, .04);
      border-bottom: 1px solid rgba(255, 255, 255, .04);
    }
    .entry-bar-inner {
      background: linear-gradient(135deg, var(--bg-card) 0%, #16202F 100%);
      border: 1px solid rgba(0, 229, 204, .15);
      border-radius: 20px;
      padding: 48px 56px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 32px;
      flex-wrap: wrap;
      box-shadow: var(--shadow);
    }
    .entry-copy h3 {
      font-size: 1.5rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text);
    }
    .entry-copy p {
      color: var(--text-weak);
    }
    .entry-actions {
      display: flex;
      gap: 14px;
      flex-wrap: wrap;
    }

    /* ============================================================
       Contact Section
    ============================================================ */
    .contact-section {
      padding: 100px 0;
      background-image: url('/assets/images/backpic/back-3.webp');
      background-size: cover;
      background-position: center;
      position: relative;
    }
    .contact-section::before {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(120deg, rgba(11, 15, 23, .95) 40%, rgba(11, 15, 23, .82));
    }
    .contact-section .container {
      position: relative;
      z-index: 2;
    }
    .contact-inner {
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 60px;
      background: rgba(19, 26, 38, .85);
      backdrop-filter: blur(16px);
      border: 1px solid rgba(255, 255, 255, .07);
      border-radius: 24px;
      padding: 56px;
      box-shadow: var(--shadow);
    }
    .contact-copy h2 {
      font-size: clamp(1.6rem, 3vw, 2.4rem);
      font-weight: 700;
      margin-bottom: 16px;
    }
    .contact-copy p {
      color: var(--text-weak);
      margin-bottom: 28px;
      max-width: 420px;
    }
    .contact-list li {
      display: flex;
      align-items: center;
      gap: 14px;
      margin-bottom: 16px;
      color: var(--text);
    }
    .contact-list i {
      width: 40px;
      height: 40px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: rgba(0, 229, 204, .1);
      border: 1px solid rgba(0, 229, 204, .2);
      border-radius: 10px;
      color: var(--primary);
    }
    .contact-form-wrap {
      background: var(--bg-card);
      border-radius: 16px;
      padding: 36px;
      border: 1px solid rgba(255, 255, 255, .07);
    }
    .contact-form label {
      display: block;
      font-size: .9rem;
      color: var(--text-weak);
      margin-bottom: 8px;
    }
    .contact-form input {
      width: 100%;
      background: #0E1622;
      border: 2px solid rgba(255, 255, 255, .08);
      border-radius: 8px;
      padding: 14px 16px;
      color: var(--text);
      margin-bottom: 22px;
      transition: border-color .3s ease, box-shadow .3s ease;
    }
    .contact-form input:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(0, 229, 204, .15);
    }
    .btn-block {
      width: 100%;
    }
    .form-note {
      font-size: .8rem;
      color: var(--text-weak);
      text-align: center;
      margin-top: 14px;
    }

    /* ============================================================
       Footer
    ============================================================ */
    .site-footer {
      background: #0A0E15;
      border-top: 1px solid rgba(255, 255, 255, .06);
      padding: 70px 0 0;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 44px;
      padding-bottom: 48px;
    }
    .footer-brand .brand-logo {
      margin-bottom: 18px;
    }
    .footer-description {
      color: var(--text-weak);
      font-size: .95rem;
      margin-bottom: 22px;
      max-width: 300px;
    }
    .footer-social {
      display: flex;
      gap: 12px;
    }
    .social-circle {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      background: rgba(255, 255, 255, .04);
      border: 1px solid rgba(255, 255, 255, .1);
      color: var(--text-weak);
      transition: var(--transition);
    }
    .social-circle:hover {
      background: rgba(0, 229, 204, .15);
      border-color: var(--primary);
      color: var(--primary);
      transform: translateY(-3px);
    }
    .footer-title {
      font-size: .8rem;
      font-weight: 700;
      letter-spacing: .08em;
      text-transform: uppercase;
      color: var(--primary);
      margin-bottom: 20px;
    }
    .footer-links li,
    .footer-contact li {
      margin-bottom: 12px;
    }
    .footer-links a,
    .footer-contact a {
      color: var(--text-weak);
      font-size: .95rem;
    }
    .footer-links a:hover {
      color: var(--primary);
      padding-left: 4px;
    }
    .footer-contact li {
      display: flex;
      align-items: center;
      gap: 12px;
      color: var(--text-weak);
      font-size: .95rem;
    }
    .footer-contact i {
      color: var(--primary);
      width: 16px;
      text-align: center;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, .06);
      padding: 24px 0;
      text-align: center;
    }
    .footer-bottom p {
      color: var(--text-weak);
      font-size: .88rem;
    }
    .footer-bottom a {
      color: var(--text-weak);
    }
    .footer-bottom a:hover {
      color: var(--primary);
    }

    /* ============================================================
       Responsive
    ============================================================ */
    @media (max-width: 64em) {
      .header-inner {
        gap: 16px;
      }
      .main-nav {
        gap: 2px;
      }
      .nav-link {
        padding: 0 12px;
      }
      .mega-panel {
        right: -10px;
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 36px;
      }
      .contact-inner {
        padding: 40px;
        gap: 40px;
      }
      .scenario-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .entry-bar-inner {
        padding: 40px;
      }
    }

    @media (max-width: 48em) {
      .mobile-toggle {
        display: inline-flex;
      }
      .main-nav {
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: flex-start;
        background: var(--panel);
        border-bottom: 1px solid rgba(255, 255, 255, .08);
        padding: 12px 24px 20px;
        gap: 4px;
        display: none;
        z-index: 998;
        box-shadow: 0 20px 50px rgba(0, 0, 0, .5);
      }
      .main-nav.open {
        display: flex;
      }
      .nav-link {
        display: block;
        width: 100%;
        height: 46px;
        line-height: 46px;
        padding: 0 8px;
        border-radius: 8px;
      }
      .nav-link::after {
        display: none;
      }
      .nav-link:hover,
      .nav-link.active {
        background: rgba(0, 229, 204, .1);
        color: var(--primary);
      }
      .mega-panel {
        position: fixed;
        top: 120px;
        left: 16px;
        right: 16px;
        width: auto;
        max-width: none;
      }
      .mega-grid {
        grid-template-columns: 1fr;
        gap: 24px;
      }
      .page-hero {
        padding: 140px 0 70px;
      }
      .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
      }
      .cap-grid {
        grid-template-columns: 1fr;
      }
      .scenario-grid {
        grid-template-columns: 1fr;
      }
      .contact-inner {
        grid-template-columns: 1fr;
        padding: 32px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
      }
      .entry-bar-inner {
        flex-direction: column;
        align-items: flex-start;
        padding: 32px;
      }
      .timeline-media {
        height: 180px;
      }
      .timeline-body {
        padding: 20px 20px 24px;
      }
      .timeline-wrap::before {
        left: 12px;
      }
      .timeline-item::before {
        left: 4px;
        width: 17px;
        height: 17px;
        border-width: 4px;
      }
    }

    @media (max-width: 40em) {
      .container {
        padding: 0 18px;
      }
      .brand-icon {
        width: 36px;
        height: 36px;
        font-size: 16px;
      }
      .brand-text {
        font-size: 1.05rem;
      }
      .mega-trigger span {
        display: none;
      }
      .mega-trigger {
        padding: 10px 12px;
      }
      .hero-actions {
        flex-direction: column;
        align-items: stretch;
      }
      .btn {
        width: 100%;
        justify-content: center;
      }
      .hero-sub {
        font-size: 1rem;
      }
      .section-head {
        margin-bottom: 40px;
      }
      .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
      }
      .stat-item {
        padding: 28px 16px;
      }
      .stat-value {
        font-size: 1.8rem;
      }
      .cap-card {
        padding: 28px 22px;
      }
      .footer-grid {
        gap: 28px;
      }
      .footer-bottom p {
        font-size: .82rem;
      }
      .timeline-item {
        padding-left: 48px;
      }
      .timeline-media {
        height: 150px;
      }
      .timeline-body p {
        font-size: .9rem;
      }
      .faq-item summary {
        padding: 16px 20px;
        font-size: .95rem;
      }
      .faq-answer {
        padding: 14px 20px 20px;
      }
      .entry-actions {
        width: 100%;
        flex-direction: column;
      }
    }