/* roulang page: index */
:root {
  --bg-base: #0E0F13;
  --bg-alt: #14161D;
  --bg-card: #1A1D26;
  --primary: #00E5A0;
  --primary-hover: #00C98D;
  --secondary: #8B5CF6;
  --accent: #FF8A00;
  --accent-hover: #E67B00;
  --text-hi: #FFFFFF;
  --text-mid: #D1D5DB;
  --text-low: #94A3B8;
  --text-disable: #5B6372;
  --line: rgba(255,255,255,0.08);
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-card: 0 8px 24px rgba(0,229,160,0.04);
  --shadow-card-hover: 0 12px 32px rgba(0,229,160,0.1);
  --shadow-cta: 0 4px 24px rgba(255,138,0,0.25);
  --font-sans: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --font-mono: "JetBrains Mono", "Roboto Mono", monospace;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-base);
  color: var(--text-mid);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color .2s ease;
}

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

input {
  font-family: inherit;
  outline: none;
  border: none;
}

:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  border-radius: 4px;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* ===== Header-1 ===== */
.header-top {
  background: var(--bg-base);
  border-bottom: 1px solid var(--line);
  height: 72px;
  display: flex;
  align-items: center;
  position: relative;
  z-index: 50;
}

.header-top__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: 100%;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 6px;
  flex-shrink: 0;
}

.brand__main {
  font-size: 26px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: 1px;
  line-height: 1.2;
}

.brand__sub {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-low);
  letter-spacing: 2px;
}

.header-search {
  flex: 1;
  max-width: 460px;
  display: flex;
  align-items: center;
  background: var(--bg-alt);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 999px;
  padding: 0 18px;
  height: 42px;
  gap: 10px;
  transition: border-color .2s;
}

.header-search:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0,229,160,0.12);
}

.header-search__icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: var(--text-low);
}

.header-search__input {
  background: transparent;
  color: var(--text-hi);
  font-size: 14px;
  width: 100%;
}

.header-search__input::placeholder {
  color: var(--text-disable);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  border-radius: 12px;
  padding: 12px 28px;
  font-size: 14px;
  line-height: 1.4;
  transition: all .2s cubic-bezier(.4,0,.2,1);
  text-align: center;
  gap: 8px;
}

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

.btn-accent {
  background: var(--accent);
  color: #0E0F13;
  box-shadow: var(--shadow-cta);
}

.btn-accent:hover {
  background: var(--accent-hover);
  box-shadow: 0 6px 30px rgba(255,138,0,0.35);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--primary);
  color: var(--primary);
}

.btn-outline:hover {
  background: rgba(0,229,160,0.15);
}

.btn-lg {
  padding: 16px 36px;
  font-size: 16px;
  border-radius: 14px;
}

.btn-sm {
  padding: 9px 20px;
  font-size: 13px;
  border-radius: 10px;
}

.header-mobile-btn {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  border: 1px solid var(--line);
  align-items: center;
  justify-content: center;
  color: var(--text-mid);
}

.header-mobile-btn svg {
  width: 22px;
  height: 22px;
}

/* ===== Header-2 / Channel Nav ===== */
.channel-nav {
  background: var(--bg-base);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 40;
  height: 48px;
}

.channel-nav__tabs {
  display: flex;
  align-items: center;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
  height: 100%;
  padding: 0 16px;
}

.channel-nav__tabs::-webkit-scrollbar {
  display: none;
}

.channel-nav__tab {
  display: inline-flex;
  align-items: center;
  padding: 6px 18px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-low);
  white-space: nowrap;
  transition: all .2s;
  border: 1px solid transparent;
}

.channel-nav__tab:hover {
  background: var(--bg-card);
  color: var(--text-hi);
}

.channel-nav__tab.is-active {
  background: rgba(0,229,160,0.15);
  color: var(--primary);
  border-color: rgba(0,229,160,0.3);
  font-weight: 700;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 82vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--bg-base);
}

.hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(14,15,19,0.95) 0%, rgba(14,15,19,0.65) 50%, rgba(14,15,19,0.4) 100%);
  z-index: 1;
}

.hero__grid-lines {
  position: absolute;
  inset: 0;
  z-index: 1;
  background-image: repeating-linear-gradient(135deg, rgba(255,255,255,0.03) 0px, rgba(255,255,255,0.03) 1px, transparent 1px, transparent 12px);
  pointer-events: none;
}

.hero__inner {
  position: relative;
  z-index: 2;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  padding-top: 60px;
  padding-bottom: 90px;
}

.hero__content {
  max-width: 640px;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(139,92,246,0.2);
  border: 1px solid rgba(139,92,246,0.35);
  color: #C4B5FD;
  padding: 5px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 22px;
  text-transform: uppercase;
}

.hero__title {
  font-size: clamp(30px, 4.2vw, 52px);
  font-weight: 800;
  color: var(--text-hi);
  line-height: 1.2;
  margin-bottom: 18px;
  letter-spacing: 0.5px;
}

.hero__title .highlight {
  color: var(--primary);
}

.hero__subtitle {
  font-size: 18px;
  line-height: 1.7;
  color: var(--text-mid);
  max-width: 520px;
  margin-bottom: 32px;
}

.hero__buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.hero__cover {
  max-width: 420px;
  width: 40%;
  border-radius: 24px;
  border: 1px solid var(--line);
  box-shadow: 0 16px 48px rgba(0,0,0,0.5);
  z-index: 2;
  position: relative;
  transform: rotate(1.5deg);
  transition: transform .3s;
}

.hero__cover:hover {
  transform: rotate(0deg) scale(1.02);
}

.hero__line {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--primary);
  z-index: 2;
}

/* ===== Section通用 ===== */
.section {
  padding: 80px 0;
}

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

.section__header {
  text-align: center;
  margin-bottom: 56px;
}

.section__title {
  font-size: clamp(22px, 2.4vw, 28px);
  font-weight: 700;
  color: var(--text-hi);
  line-height: 1.3;
  margin-bottom: 14px;
}

.section__subtitle {
  font-size: 15px;
  color: var(--text-low);
  line-height: 1.6;
  max-width: 560px;
  margin: 0 auto;
}

/* ===== Feature Cards ===== */
.features-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 170px 170px;
  gap: 24px;
}

.feature-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 30px;
  display: flex;
  flex-direction: column;
  transition: all .25s cubic-bezier(.4,0,.2,1);
  overflow: hidden;
}

.feature-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  height: 2px;
  width: 0;
  background: var(--primary);
  transition: width .3s ease;
}

.feature-card:hover {
  border-color: rgba(0,229,160,0.3);
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-4px);
}

.feature-card:hover::before {
  width: 100%;
}

.feature-card--large {
  grid-row: span 2;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: linear-gradient(145deg, #1A1D26 0%, #14161D 100%);
  position: relative;
  overflow: hidden;
}

.feature-card--large::after {
  content: "";
  position: absolute;
  right: -40px;
  bottom: -40px;
  width: 180px;
  height: 180px;
  background: radial-gradient(circle, rgba(0,229,160,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.feature-card__icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(0,229,160,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  margin-bottom: 18px;
  flex-shrink: 0;
}

.feature-card__icon--purple {
  background: rgba(139,92,246,0.15);
  color: var(--secondary);
}

.feature-card__icon svg {
  width: 24px;
  height: 24px;
}

.feature-card__title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-hi);
  margin-bottom: 10px;
}

.feature-card__desc {
  font-size: 14px;
  color: var(--text-low);
  line-height: 1.7;
  flex: 1;
}

.feature-card__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  margin-top: auto;
  text-decoration: underline dashed;
  text-underline-offset: 4px;
  transition: all .2s;
}

.feature-card__link:hover {
  text-decoration-style: solid;
}

.feature-card--large .feature-card__icon {
  width: 60px;
  height: 60px;
  border-radius: 16px;
}

.feature-card--large .feature-card__title {
  font-size: 26px;
  margin-bottom: 14px;
}

.feature-card--large .feature-card__desc {
  font-size: 15px;
  max-width: 400px;
}

.feature-card--large .feature-card__link {
  font-size: 14px;
}

/* ===== Scenario / 使用场景 ===== */
.scenario-section {
  background: var(--bg-alt);
  position: relative;
  overflow: hidden;
}

.scenario-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  position: relative;
}

.scenario-grid::before {
  content: "";
  position: absolute;
  top: 50px;
  left: 10%;
  right: 10%;
  border-top: 2px dashed rgba(139,92,246,0.3);
  z-index: 0;
}

.scenario-step {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 0 16px;
}

.scenario-step__num {
  font-family: var(--font-mono);
  font-size: 56px;
  font-weight: 800;
  color: var(--secondary);
  line-height: 1.1;
  display: block;
  margin-bottom: 20px;
  opacity: 0.85;
  letter-spacing: -2px;
}

.scenario-step__title {
  font-size: 19px;
  font-weight: 700;
  color: var(--text-hi);
  margin-bottom: 12px;
}

.scenario-step__desc {
  font-size: 14px;
  color: var(--text-low);
  line-height: 1.7;
}

/* ===== News / 资讯 ===== */
.news-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.news-card {
  display: flex;
  align-items: stretch;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all .25s;
}

.news-card:hover {
  border-color: rgba(0,229,160,0.25);
  background: var(--bg-alt);
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
}

.news-card__thumb {
  width: 220px;
  min-width: 220px;
  height: 140px;
  overflow: hidden;
  position: relative;
  flex-shrink: 0;
}

.news-card__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}

.news-card:hover .news-card__thumb img {
  transform: scale(1.05);
}

.news-card__body {
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 8px;
  flex: 1;
  min-width: 0;
}

.news-card__badge {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  background: rgba(139,92,246,0.2);
  color: #C4B5FD;
  font-size: 12px;
  font-weight: 600;
  padding: 3px 12px;
  border-radius: 999px;
  border: 1px solid rgba(139,92,246,0.3);
  white-space: nowrap;
}

.news-card__title {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-hi);
  line-height: 1.4;
  transition: color .2s;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.news-card__title a {
  color: inherit;
}

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

.news-card__excerpt {
  font-size: 14px;
  color: var(--text-low);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: auto;
}

.news-card__date {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-disable);
}

.news-card__date svg {
  width: 14px;
  height: 14px;
}

.news-card__more {
  font-size: 13px;
  color: var(--primary);
  font-weight: 600;
  white-space: nowrap;
}

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 64px 24px;
  background: var(--bg-card);
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  text-align: center;
}

.empty-state__icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: 2px solid var(--text-disable);
  position: relative;
  margin-bottom: 18px;
}

.empty-state__icon::before,
.empty-state__icon::after {
  content: "";
  position: absolute;
  width: 30px;
  height: 2px;
  background: var(--text-disable);
  border-radius: 2px;
}

.empty-state__icon::before {
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(45deg);
}

.empty-state__icon::after {
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(-45deg);
}

.empty-state p {
  color: var(--text-low);
  font-size: 15px;
}

/* ===== Showcase / 成功案例 ===== */
.showcase-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 40px;
  align-items: center;
}

.showcase-stats {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 40px 36px;
  position: relative;
  overflow: hidden;
}

.showcase-stats::after {
  content: "";
  position: absolute;
  bottom: -80px;
  right: -80px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: rgba(0,229,160,0.06);
}

.showcase-stats__title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-hi);
  margin-bottom: 28px;
}

.showcase-stats__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px 20px;
}

.stat-item__num {
  font-family: var(--font-mono);
  font-size: 36px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.1;
  letter-spacing: -1px;
}

.stat-item__label {
  font-size: 13px;
  color: var(--text-low);
  margin-top: 6px;
}

.showcase-quotes {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.quote-item {
  background: var(--bg-card);
  border-left: 4px solid var(--secondary);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 22px 24px;
  transition: background .2s;
}

.quote-item:hover {
  background: var(--bg-alt);
}

.quote-item__text {
  font-size: 15px;
  color: var(--text-mid);
  line-height: 1.7;
  margin-bottom: 12px;
}

.quote-item__footer {
  display: flex;
  align-items: center;
  gap: 12px;
}

.quote-item__name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-hi);
}

.quote-item__tag {
  font-size: 12px;
  padding: 2px 10px;
  border-radius: 999px;
  background: rgba(139,92,246,0.15);
  color: #C4B5FD;
  border: 1px solid rgba(139,92,246,0.25);
}

/* ===== Pricing / 价格 ===== */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 36px 30px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: transform .25s, box-shadow .25s;
}

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

.pricing-card--featured {
  background: var(--bg-card);
  border: 2px solid var(--primary);
  box-shadow: 0 12px 40px rgba(0,229,160,0.08);
  transform: translateY(-12px);
  border-radius: var(--radius);
  position: relative;
  z-index: 1;
}

.pricing-card--featured:hover {
  transform: translateY(-16px);
  box-shadow: 0 16px 48px rgba(0,229,160,0.12);
}

.pricing-card__badge {
  position: absolute;
  top: -12px;
  right: 20px;
  background: var(--accent);
  color: #0E0F13;
  font-size: 12px;
  font-weight: 800;
  padding: 4px 14px;
  border-radius: 999px;
  box-shadow: 0 4px 12px rgba(255,138,0,0.3);
}

.pricing-card__name {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-hi);
  margin-bottom: 14px;
}

.pricing-card__price {
  font-family: var(--font-mono);
  font-size: 44px;
  font-weight: 800;
  color: var(--text-hi);
  line-height: 1.1;
  margin-bottom: 4px;
}

.pricing-card__price span {
  font-size: 18px;
  color: var(--text-low);
  font-weight: 500;
}

.pricing-card__unit {
  font-size: 13px;
  color: var(--text-disable);
  margin-bottom: 24px;
}

.pricing-card__features {
  list-style: none;
  padding: 0;
  margin: 0 0 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
}

.pricing-card__features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--text-mid);
  line-height: 1.5;
}

.pricing-card__features svg {
  width: 18px;
  height: 18px;
  color: var(--primary);
  flex-shrink: 0;
  margin-top: 1px;
}

.pricing-card__cta {
  width: 100%;
}

/* ===== FAQ ===== */
.faq-list {
  max-width: 760px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--line);
  padding: 22px 4px;
}

.faq-item:first-child {
  border-top: 1px solid var(--line);
}

.faq-item__question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  text-align: left;
  font-size: 16px;
  font-weight: 700;
  color: var(--text-hi);
  cursor: pointer;
  padding: 0;
  transition: color .2s;
  gap: 20px;
}

.faq-item__question:hover {
  color: var(--primary);
}

.faq-item__icon {
  position: relative;
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.faq-item__icon::before,
.faq-item__icon::after {
  content: "";
  position: absolute;
  background: var(--primary);
  border-radius: 2px;
  transition: transform .3s ease;
}

.faq-item__icon::before {
  top: 9px;
  left: 0;
  width: 20px;
  height: 2px;
}

.faq-item__icon::after {
  top: 0;
  left: 9px;
  width: 2px;
  height: 20px;
}

.faq-item.is-open .faq-item__icon::after {
  transform: scale(0);
}

.faq-item__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease;
  color: var(--text-mid);
  line-height: 1.7;
  font-size: 15px;
}

.faq-item.is-open .faq-item__answer {
  max-height: 400px;
  padding-top: 14px;
}

.faq-item__answer-inner {
  padding-right: 12px;
}

/* ===== CTA ===== */
.cta-section {
  position: relative;
  background: var(--bg-alt);
  padding: 90px 0;
  overflow: hidden;
  text-align: center;
}

.cta-section__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.25;
}

.cta-section__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(14,15,19,0.85) 0%, rgba(14,15,19,0.9) 100%);
}

.cta-section__glow {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 500px;
  height: 160px;
  background: radial-gradient(ellipse, rgba(0,229,160,0.15) 0%, transparent 70%);
  filter: blur(60px);
  pointer-events: none;
}

.cta-section__inner {
  position: relative;
  z-index: 2;
  max-width: 680px;
  margin: 0 auto;
}

.cta-section__title {
  font-size: clamp(22px, 2.6vw, 30px);
  font-weight: 800;
  color: var(--text-hi);
  line-height: 1.4;
  margin-bottom: 30px;
}

/* ===== Footer ===== */
.footer {
  background: var(--bg-base);
  border-top: 1px solid var(--line);
  padding: 60px 0 0;
}

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

.footer__brand {
  font-size: 24px;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 14px;
}

.footer__brand span {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-disable);
  margin-left: 8px;
  letter-spacing: 2px;
}

.footer__intro {
  font-size: 14px;
  color: var(--text-low);
  line-height: 1.7;
  margin-bottom: 20px;
  max-width: 320px;
}

.footer__social {
  display: flex;
  gap: 12px;
}

.footer__social a {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-low);
  transition: all .2s;
}

.footer__social a:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(0,229,160,0.08);
}

.footer__social svg {
  width: 18px;
  height: 18px;
}

.footer__heading {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-hi);
  margin-bottom: 18px;
}

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

.footer__links a {
  font-size: 14px;
  color: var(--text-low);
  transition: color .2s;
}

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

.footer__contact {
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 14px;
  color: var(--text-low);
  line-height: 1.6;
}

.footer__contact span {
  color: var(--text-disable);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 2px;
}

.footer__bottom {
  border-top: 1px solid var(--line);
  padding: 20px 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-align: center;
}

.footer__copyright {
  font-size: 13px;
  color: var(--text-disable);
}

.footer__icp {
  font-size: 12px;
  color: var(--text-disable);
}

/* ===== Mobile Bottom Nav ===== */
.mobile-bottom-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--bg-card);
  border-top: 1px solid var(--line);
  z-index: 60;
  height: 60px;
  align-items: center;
  justify-content: space-around;
  padding: 0 12px;
}

.mobile-bottom-nav__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  color: var(--text-low);
  font-size: 11px;
  font-weight: 500;
  transition: color .2s;
}

.mobile-bottom-nav__item.is-active {
  color: var(--primary);
}

.mobile-bottom-nav__item svg {
  width: 20px;
  height: 20px;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .header-top {
    height: 60px;
  }

  .header-search {
    max-width: 300px;
  }

  .header-search__input {
    font-size: 13px;
  }

  .hero__cover {
    width: 35%;
    max-width: 340px;
  }

  .hero__inner {
    gap: 24px;
    padding-top: 40px;
    padding-bottom: 70px;
  }

  .features-grid {
    grid-template-rows: 150px 150px;
    gap: 20px;
  }

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

  .pricing-card--featured {
    transform: translateY(0);
    order: -1;
  }

  .pricing-card--featured:hover {
    transform: translateY(-4px);
  }

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

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

@media (max-width: 768px) {
  .section {
    padding: 56px 0;
  }

  .section__header {
    margin-bottom: 36px;
  }

  .brand__main {
    font-size: 22px;
  }

  .brand__sub {
    font-size: 11px;
  }

  .header-search {
    display: none;
  }

  .header-mobile-btn {
    display: flex;
  }

  .btn-sm {
    padding: 8px 16px;
    font-size: 12px;
  }

  .hero__inner {
    flex-direction: column;
    align-items: flex-start;
    padding-top: 48px;
    padding-bottom: 60px;
  }

  .hero__content {
    max-width: 100%;
  }

  .hero__cover {
    display: none;
  }

  .hero__title {
    font-size: 30px;
  }

  .hero__subtitle {
    font-size: 16px;
  }

  .hero__buttons {
    flex-direction: column;
    align-items: stretch;
  }

  .hero__buttons .btn {
    width: 100%;
  }

  .features-grid {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto;
  }

  .feature-card--large {
    grid-row: auto;
    height: auto;
    min-height: 200px;
  }

  .feature-card {
    min-height: 170px;
    height: auto;
  }

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

  .scenario-grid::before {
    display: none;
  }

  .scenario-step {
    text-align: center;
    padding: 0;
  }

  .scenario-step__num {
    font-size: 44px;
    margin-bottom: 14px;
  }

  .news-card {
    flex-direction: column;
  }

  .news-card__thumb {
    width: 100%;
    height: 160px;
    min-width: 100%;
  }

  .news-card__body {
    padding: 16px 18px;
  }

  .showcase-stats {
    padding: 28px 24px;
  }

  .stat-item__num {
    font-size: 30px;
  }

  .pricing-card {
    padding: 28px 22px;
  }

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

  .footer {
    padding: 40px 0 80px;
  }

  .mobile-bottom-nav {
    display: flex;
  }
}

@media (max-width: 520px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }

  .hero__title {
    font-size: 26px;
  }

  .hero__subtitle {
    font-size: 15px;
  }

  .btn-lg {
    padding: 14px 28px;
    font-size: 15px;
  }

  .channel-nav__tab {
    padding: 5px 14px;
    font-size: 13px;
  }

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

  .feature-card {
    padding: 22px;
  }

  .stat-item__num {
    font-size: 26px;
  }

  .showcase-stats__grid {
    grid-template-columns: 1fr 1fr;
    gap: 20px 16px;
  }

  .quote-item {
    padding: 18px 18px;
  }

  .pricing-card__price {
    font-size: 36px;
  }

  .footer__social a {
    width: 36px;
    height: 36px;
  }
}

@media (min-width: 769px) {
  .channel-nav__tabs {
    padding: 0 0;
  }
}

@media (min-width: 1280px) {
  .container {
    padding-left: 24px;
    padding-right: 24px;
  }
}

/* 移动端菜单面板 */
.mobile-menu-panel {
  display: none;
  position: fixed;
  top: 60px;
  left: 0;
  right: 0;
  background: var(--bg-card);
  border-bottom: 1px solid var(--line);
  z-index: 55;
  padding: 20px;
  box-shadow: 0 16px 40px rgba(0,0,0,0.4);
}

.mobile-menu-panel.is-open {
  display: block;
}

.mobile-menu-panel__search {
  display: flex;
  align-items: center;
  background: var(--bg-alt);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0 14px;
  height: 40px;
  gap: 8px;
  margin-bottom: 16px;
}

.mobile-menu-panel__search svg {
  width: 16px;
  height: 16px;
  color: var(--text-low);
}

.mobile-menu-panel__search input {
  background: transparent;
  color: var(--text-hi);
  font-size: 14px;
  width: 100%;
}

.mobile-menu-panel__links {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.mobile-menu-panel__links a {
  padding: 12px 14px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-mid);
  transition: all .2s;
}

.mobile-menu-panel__links a:hover {
  background: var(--bg-alt);
  color: var(--primary);
}

.mobile-menu-panel__links a.is-active {
  color: var(--primary);
  background: rgba(0,229,160,0.08);
  font-weight: 700;
}

/* roulang page: category1 */
:root {
            --bg-base: #0E0F13;
            --bg-alt: #14161D;
            --bg-card: #1A1D26;
            --primary: #00E5A0;
            --primary-hover: #00C98D;
            --secondary: #8B5CF6;
            --secondary-hover: #7C4BE0;
            --accent: #FF8A00;
            --accent-hover: #E67B00;
            --text-hi: #FFFFFF;
            --text-mid: #D1D5DB;
            --text-low: #94A3B8;
            --text-disable: #5B6372;
            --line: rgba(255, 255, 255, 0.08);
            --line-strong: rgba(255, 255, 255, 0.16);
            --radius-sm: 8px;
            --radius: 16px;
            --radius-lg: 24px;
            --shadow-card: 0 8px 24px rgba(0, 229, 160, 0.04);
            --shadow-card-hover: 0 12px 32px rgba(0, 229, 160, 0.1);
            --shadow-cta: 0 4px 24px rgba(255, 138, 0, 0.25);
            --font-mono: "JetBrains Mono", "Roboto Mono", monospace;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
            background: var(--bg-base);
            color: var(--text-mid);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            text-rendering: optimizeLegibility;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color .2s ease;
        }
        button {
            font-family: inherit;
            border: none;
            background: none;
            cursor: pointer;
            color: inherit;
        }
        input {
            font-family: inherit;
        }
        ul,
        ol {
            list-style: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .section-pad {
            padding: 80px 0;
        }
        @media(max-width: 768px) {
            .section-pad {
                padding: 56px 0;
            }
        }

        /* ===== Button System ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: 12px;
            font-weight: 700;
            line-height: 1;
            transition: all .25s ease;
            white-space: nowrap;
            outline: none;
        }
        .btn:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }
        .btn--accent {
            background: var(--accent);
            color: #000;
            padding: 14px 32px;
            box-shadow: var(--shadow-cta);
        }
        .btn--accent:hover {
            background: #FF9E2E;
            box-shadow: 0 6px 32px rgba(255, 138, 0, 0.4);
            transform: translateY(-2px);
        }
        .btn--accent:active {
            transform: scale(0.97);
        }
        .btn--outline {
            background: transparent;
            border: 2px solid var(--primary);
            color: var(--primary);
            padding: 12px 28px;
        }
        .btn--outline:hover {
            background: rgba(0, 229, 160, 0.12);
            transform: translateY(-2px);
        }
        .btn--outline:active {
            transform: scale(0.97);
        }
        .btn--lg {
            padding: 18px 48px;
            font-size: 18px;
            border-radius: 14px;
        }
        .btn--sm {
            padding: 10px 22px;
            font-size: 14px;
        }
        @media(max-width: 520px) {
            .btn--lg {
                padding: 14px 34px;
                font-size: 16px;
                width: 100%;
                max-width: 320px;
            }
        }

        /* ===== Header ===== */
        .site-header {
            background: var(--bg-base);
            border-bottom: 1px solid var(--line);
            position: relative;
            z-index: 50;
        }
        .header-top {
            height: 72px;
            display: flex;
            align-items: center;
        }
        .header-top__inner {
            display: flex;
            align-items: center;
            gap: 24px;
            width: 100%;
        }
        .brand {
            display: flex;
            align-items: baseline;
            gap: 4px;
            flex-shrink: 0;
        }
        .brand__main {
            font-size: 26px;
            font-weight: 800;
            color: var(--text-hi);
            letter-spacing: -.5px;
            line-height: 1;
        }
        .brand__main span {
            color: var(--primary);
        }
        .brand__sub {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-low);
            letter-spacing: 1px;
        }
        .header-search {
            flex: 1;
            max-width: 420px;
            position: relative;
            margin-left: auto;
        }
        .header-search__input {
            width: 100%;
            height: 44px;
            background: var(--bg-alt);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 999px;
            padding: 0 44px 0 18px;
            color: var(--text-hi);
            font-size: 14px;
            outline: none;
            transition: border-color .2s;
        }
        .header-search__input::placeholder {
            color: var(--text-disable);
        }
        .header-search__input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(0, 229, 160, 0.1);
        }
        .header-search__btn {
            position: absolute;
            right: 6px;
            top: 50%;
            transform: translateY(-50%);
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-low);
            transition: color .2s;
        }
        .header-search__btn:hover {
            color: var(--primary);
        }
        .header-search__btn svg {
            width: 16px;
            height: 16px;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-left: auto;
        }
        .header-menu-btn {
            width: 42px;
            height: 42px;
            border-radius: 10px;
            display: none;
            align-items: center;
            justify-content: center;
            color: var(--text-mid);
            border: 1px solid var(--line);
            transition: all .2s;
        }
        .header-menu-btn:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        .header-menu-btn svg {
            width: 20px;
            height: 20px;
        }

        /* Channel Nav */
        .channel-nav {
            background: var(--bg-base);
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
            position: sticky;
            top: 0;
            z-index: 49;
            backdrop-filter: blur(12px);
            background-color: rgba(14, 15, 19, 0.92);
        }
        .channel-nav__tabs {
            display: flex;
            align-items: center;
            gap: 8px;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
            height: 48px;
            white-space: nowrap;
        }
        .channel-nav__tabs::-webkit-scrollbar {
            display: none;
        }
        .channel-nav__tab {
            display: inline-flex;
            align-items: center;
            height: 34px;
            padding: 0 18px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-low);
            transition: all .2s;
            flex-shrink: 0;
        }
        .channel-nav__tab:hover {
            background: var(--bg-card);
            color: var(--text-hi);
        }
        .channel-nav__tab.is-active {
            background: rgba(0, 229, 160, 0.15);
            border: 1px solid rgba(0, 229, 160, 0.3);
            color: var(--primary);
            font-weight: 700;
        }

        @media(max-width: 1024px) {
            .header-top {
                height: 60px;
            }
            .brand__main {
                font-size: 22px;
            }
            .brand__sub {
                font-size: 12px;
            }
            .header-search {
                max-width: 220px;
            }
            .header-search__input {
                padding-right: 38px;
            }
        }
        @media(max-width: 768px) {
            .header-search {
                display: none;
            }
            .header-actions {
                margin-left: auto;
            }
            .header-menu-btn {
                display: flex;
            }
            .brand__sub {
                display: none;
            }
        }

        /* Mobile menu drawer */
        .mobile-menu {
            position: fixed;
            inset: 0;
            background: rgba(14, 15, 19, 0.98);
            z-index: 100;
            display: flex;
            flex-direction: column;
            padding: 24px;
            transform: translateX(100%);
            transition: transform .3s ease;
            visibility: hidden;
        }
        .mobile-menu.open {
            transform: translateX(0);
            visibility: visible;
        }
        .mobile-menu__header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 32px;
        }
        .mobile-menu__close {
            width: 42px;
            height: 42px;
            border-radius: 10px;
            border: 1px solid var(--line);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-mid);
        }
        .mobile-menu__close:hover {
            color: var(--primary);
            border-color: var(--primary);
        }
        .mobile-menu__link {
            padding: 14px 0;
            border-bottom: 1px solid var(--line);
            font-size: 18px;
            font-weight: 600;
            color: var(--text-hi);
        }
        .mobile-menu__link:hover {
            color: var(--primary);
        }
        .mobile-menu__btn {
            margin-top: 28px;
        }

        /* ===== Page Hero (Category H1) ===== */
        .page-hero {
            position: relative;
            background: var(--bg-alt);
            background-size: cover;
            background-position: center;
            border-bottom: 1px solid var(--line);
            overflow: hidden;
        }
        .page-hero__overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(14, 15, 19, 0.92) 30%, rgba(14, 15, 19, 0.65) 100%);
        }
        .page-hero__inner {
            position: relative;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 40px;
            padding-top: 72px;
            padding-bottom: 64px;
        }
        .page-hero__content {
            max-width: 720px;
        }
        .page-hero__eyebrow {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 2px;
            color: var(--primary);
            background: rgba(0, 229, 160, 0.1);
            border: 1px solid rgba(0, 229, 160, 0.25);
            padding: 4px 14px;
            border-radius: 999px;
            margin-bottom: 20px;
            text-transform: uppercase;
        }
        .page-hero__title {
            font-size: 44px;
            font-weight: 800;
            color: var(--text-hi);
            line-height: 1.2;
            letter-spacing: -1px;
        }
        .page-hero__desc {
            font-size: 16px;
            color: var(--text-mid);
            max-width: 520px;
            margin-top: 16px;
            line-height: 1.8;
        }
        .page-hero__side {
            flex-shrink: 0;
            width: 300px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .page-hero__stat {
            background: rgba(26, 29, 38, 0.8);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            padding: 18px 22px;
            flex: 1;
            min-width: 120px;
        }
        .page-hero__stat-num {
            font-family: var(--font-mono);
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }
        .page-hero__stat-label {
            font-size: 13px;
            color: var(--text-low);
            margin-top: 4px;
        }
        .page-hero__bar {
            position: relative;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
        }
        @media(max-width: 900px) {
            .page-hero__side {
                display: none;
            }
            .page-hero__inner {
                padding-top: 56px;
                padding-bottom: 48px;
            }
        }
        @media(max-width: 520px) {
            .page-hero__title {
                font-size: 30px;
            }
            .page-hero__desc {
                font-size: 15px;
            }
        }

        /* ===== Content Block (图文混排) ===== */
        .content-section {
            padding: 80px 0;
        }
        .content-section--alt {
            background: var(--bg-alt);
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
        }
        .content-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
        }
        .content-block--reverse .content-block__media {
            order: 2;
        }
        .content-block--reverse .content-block__body {
            order: 1;
        }
        .content-block__media {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--line);
            box-shadow: var(--shadow-card);
        }
        .content-block__media img {
            width: 100%;
            height: 360px;
            object-fit: cover;
            transition: transform .5s ease;
        }
        .content-block__media:hover img {
            transform: scale(1.04);
        }
        .content-block__media::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(14, 15, 19, 0.4));
            pointer-events: none;
        }
        .content-block__tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--secondary);
            background: rgba(139, 92, 246, 0.12);
            border: 1px solid rgba(139, 92, 246, 0.3);
            padding: 4px 14px;
            border-radius: 999px;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }
        .content-block__body h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-hi);
            line-height: 1.3;
            margin-bottom: 16px;
            letter-spacing: -.5px;
        }
        .content-block__body p {
            color: var(--text-mid);
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .content-block__points {
            display: grid;
            gap: 10px;
            margin-top: 20px;
        }
        .content-block__points li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 15px;
            color: var(--text-mid);
        }
        .content-block__points svg {
            width: 18px;
            height: 18px;
            color: var(--primary);
            flex-shrink: 0;
            margin-top: 4px;
        }
        @media(max-width: 900px) {
            .content-block {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .content-block--reverse .content-block__media {
                order: 0;
            }
            .content-block--reverse .content-block__body {
                order: 1;
            }
            .content-block__media img {
                height: 260px;
            }
        }
        @media(max-width: 520px) {
            .content-section {
                padding: 56px 0;
            }
            .content-block__body h2 {
                font-size: 22px;
            }
            .content-block__media img {
                height: 200px;
            }
        }

        /* ===== Section title ===== */
        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-hi);
            line-height: 1.3;
            letter-spacing: -.5px;
            margin-bottom: 8px;
            position: relative;
            display: inline-block;
        }
        .section-title::after {
            content: '';
            display: block;
            width: 48px;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), transparent);
            border-radius: 2px;
            margin-top: 8px;
        }
        .section-sub {
            font-size: 15px;
            color: var(--text-low);
            margin-top: 8px;
            margin-bottom: 40px;
            max-width: 600px;
        }

        /* ===== Entry Grid (站内入口) ===== */
        .entry-section {
            padding: 80px 0;
        }
        .entry-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 32px;
        }
        .entry-card {
            background: var(--bg-card);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            padding: 28px 24px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            transition: all .25s ease;
            position: relative;
            overflow: hidden;
        }
        .entry-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--primary);
            opacity: 0;
            transition: opacity .25s;
        }
        .entry-card:hover {
            border-color: rgba(0, 229, 160, 0.3);
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }
        .entry-card:hover::before {
            opacity: 1;
        }
        .entry-card__icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(0, 229, 160, 0.08);
            border: 1px solid rgba(0, 229, 160, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            margin-bottom: 4px;
        }
        .entry-card__icon svg {
            width: 22px;
            height: 22px;
        }
        .entry-card__icon--purple {
            background: rgba(139, 92, 246, 0.08);
            border-color: rgba(139, 92, 246, 0.2);
            color: var(--secondary);
        }
        .entry-card__icon--orange {
            background: rgba(255, 138, 0, 0.08);
            border-color: rgba(255, 138, 0, 0.2);
            color: var(--accent);
        }
        .entry-card__title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-hi);
        }
        .entry-card__desc {
            font-size: 14px;
            color: var(--text-low);
            line-height: 1.6;
        }
        @media(max-width: 900px) {
            .entry-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media(max-width: 520px) {
            .entry-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== CTA Section ===== */
        .cta-section {
            position: relative;
            padding: 96px 0;
            background-size: cover;
            background-position: center;
            overflow: hidden;
        }
        .cta-section__overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(14, 15, 19, 0.94), rgba(14, 15, 19, 0.78));
        }
        .cta-section__inner {
            position: relative;
            text-align: center;
            max-width: 680px;
        }
        .cta-section h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-hi);
            line-height: 1.4;
            margin-bottom: 28px;
            letter-spacing: -.5px;
        }
        .cta-section__glow {
            position: absolute;
            bottom: -40px;
            left: 50%;
            transform: translateX(-50%);
            width: 400px;
            height: 120px;
            background: var(--primary);
            filter: blur(80px);
            opacity: 0.15;
            border-radius: 50%;
            pointer-events: none;
        }
        @media(max-width: 520px) {
            .cta-section {
                padding: 64px 0;
            }
            .cta-section h2 {
                font-size: 22px;
            }
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 80px 0;
        }
        .faq-list {
            max-width: 800px;
            margin-top: 32px;
        }
        .faq-item {
            border-bottom: 1px solid var(--line);
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-item__question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 4px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-hi);
            text-align: left;
            transition: color .2s;
        }
        .faq-item__question:hover {
            color: var(--primary);
        }
        .faq-item__icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid var(--line);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--primary);
            font-weight: 400;
            transition: transform .3s ease, border-color .3s;
            flex-shrink: 0;
        }
        .faq-item.open .faq-item__icon {
            transform: rotate(45deg);
            border-color: var(--primary);
        }
        .faq-item__answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .3s ease;
        }
        .faq-item__answer p {
            padding: 0 28px 20px 4px;
            color: var(--text-mid);
            font-size: 15px;
            line-height: 1.8;
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-alt);
            border-top: 1px solid var(--line);
            padding: 64px 0 32px;
        }
        .footer__grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 48px;
            margin-bottom: 48px;
        }
        .footer__brand {
            font-size: 24px;
            font-weight: 800;
            color: var(--text-hi);
            letter-spacing: -.5px;
        }
        .footer__brand span {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-low);
            margin-left: 4px;
        }
        .footer__intro {
            font-size: 14px;
            color: var(--text-low);
            line-height: 1.7;
            margin-top: 12px;
            max-width: 320px;
        }
        .footer__social {
            display: flex;
            gap: 10px;
            margin-top: 20px;
        }
        .footer__social a {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            border: 1px solid var(--line);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-low);
            transition: all .2s;
        }
        .footer__social a:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
        }
        .footer__social svg {
            width: 17px;
            height: 17px;
        }
        .footer__heading {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-hi);
            margin-bottom: 16px;
            letter-spacing: 1px;
        }
        .footer__links {
            display: grid;
            gap: 10px;
        }
        .footer__links a {
            font-size: 14px;
            color: var(--text-low);
            transition: color .2s;
        }
        .footer__links a:hover {
            color: var(--primary);
        }
        .footer__contact {
            display: grid;
            gap: 14px;
            font-size: 14px;
            color: var(--text-mid);
            line-height: 1.6;
        }
        .footer__contact span {
            display: block;
            font-size: 12px;
            color: var(--text-disable);
            letter-spacing: 1px;
            text-transform: uppercase;
        }
        .footer__bottom {
            border-top: 1px solid var(--line);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--text-disable);
        }
        @media(max-width: 900px) {
            .footer__grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }
        @media(max-width: 520px) {
            .footer__grid {
                grid-template-columns: 1fr;
            }
            .footer__bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== Mobile Bottom Nav ===== */
        .mobile-bottom-nav {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: var(--bg-card);
            border-top: 1px solid var(--line);
            display: none;
            grid-template-columns: repeat(4, 1fr);
            height: 56px;
            z-index: 45;
        }
        .mobile-bottom-nav__item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 3px;
            font-size: 11px;
            color: var(--text-low);
            transition: color .2s;
        }
        .mobile-bottom-nav__item svg {
            width: 20px;
            height: 20px;
        }
        .mobile-bottom-nav__item:hover,
        .mobile-bottom-nav__item.is-active {
            color: var(--primary);
        }
        @media(max-width: 1024px) {
            .mobile-bottom-nav {
                display: grid;
            }
            body {
                padding-bottom: 56px;
            }
        }

        /* ===== Utility ===== */
        .text-primary {
            color: var(--primary);
        }
        .text-secondary {
            color: var(--secondary);
        }
        .text-low {
            color: var(--text-low);
        }
        .bg-alt {
            background: var(--bg-alt);
        }
        .bg-card {
            background: var(--bg-card);
        }
        .border-line {
            border: 1px solid var(--line);
        }
        .rounded-16 {
            border-radius: var(--radius);
        }
        .shadow-card {
            box-shadow: var(--shadow-card);
        }

/* roulang page: article */
:root{
  --bg-base:#0E0F13;
  --bg-alt:#14161D;
  --bg-card:#1A1D26;
  --primary:#00E5A0;
  --primary-hover:#00C98D;
  --secondary:#8B5CF6;
  --accent:#FF8A00;
  --accent-hover:#E67B00;
  --text-hi:#FFFFFF;
  --text-mid:#D1D5DB;
  --text-low:#94A3B8;
  --text-disable:#5B6372;
  --line:rgba(255,255,255,0.08);
  --radius:16px;
  --shadow-card:0 8px 24px rgba(0,229,160,0.04);
  --shadow-hover:0 12px 32px rgba(0,229,160,0.1);
  --shadow-cta:0 4px 24px rgba(255,138,0,0.25);
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  background:var(--bg-base);
  color:var(--text-mid);
  line-height:1.8;
  font-size:16px;
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
input,button,textarea{font:inherit;color:inherit;background:none;border:none;outline:none}
ul,ol{list-style:none}

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

.site-header{
  background:var(--bg-base);
  border-bottom:1px solid var(--line);
  position:relative;
  z-index:60;
}
.site-header__row{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;height:72px;
}
.site-brand{
  display:flex;flex-direction:column;line-height:1.15;
  white-space:nowrap;
}
.site-brand strong{
  font-size:22px;font-weight:800;color:var(--text-hi);letter-spacing:.5px;
}
.site-brand span{
  font-size:12px;font-weight:500;color:var(--text-low);letter-spacing:2px;
}
.site-search{
  position:relative;flex:0 1 260px;
}
.site-search__icon{
  position:absolute;left:14px;top:50%;transform:translateY(-50%);
  width:16px;height:16px;color:var(--text-disable);pointer-events:none;
}
.site-search input{
  width:100%;background:var(--bg-alt);
  border:1px solid rgba(255,255,255,0.1);
  border-radius:999px;
  padding:9px 16px 9px 38px;
  font-size:14px;color:var(--text-hi);
  transition:border-color .2s,box-shadow .2s;
}
.site-search input::placeholder{color:var(--text-disable)}
.site-search input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(0,229,160,0.12)}
.site-menu-btn{
  width:40px;height:40px;border-radius:12px;
  display:none;align-items:center;justify-content:center;
  color:var(--text-low);border:1px solid var(--line);
  transition:color .2s,border-color .2s;
}
.site-menu-btn:hover{color:var(--primary);border-color:var(--primary)}
.site-menu-btn svg{width:20px;height:20px}

.channel-nav{
  position:sticky;top:0;z-index:50;
  background:var(--bg-base);
  border-bottom:1px solid var(--line);
}
.channel-nav__tabs{
  display:flex;gap:8px;overflow-x:auto;
  scrollbar-width:none;-webkit-overflow-scrolling:touch;
  padding:8px 0;
}
.channel-nav__tabs::-webkit-scrollbar{display:none}
.channel-nav__tab{
  display:inline-flex;align-items:center;white-space:nowrap;
  padding:6px 18px;border-radius:999px;
  font-size:14px;font-weight:500;color:var(--text-low);
  border:1px solid transparent;
  transition:background .2s,color .2s,border-color .2s;
}
.channel-nav__tab:hover{background:var(--bg-card);color:var(--text-hi)}
.channel-nav__tab.is-active{
  background:rgba(0,229,160,0.15);
  color:var(--primary);
  border-color:rgba(0,229,160,0.3);
  font-weight:600;
}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 24px;border-radius:12px;
  font-weight:700;font-size:14px;line-height:1.2;
  cursor:pointer;transition:background .2s,box-shadow .2s,transform .15s;
  border:none;white-space:nowrap;
}
.btn--accent{
  background:var(--accent);color:#0E0F13;
  box-shadow:var(--shadow-cta);
}
.btn--accent:hover{background:#FF9922;box-shadow:0 6px 30px rgba(255,138,0,0.35)}
.btn--accent:active{transform:scale(0.97)}
.btn--ghost{
  background:transparent;border:2px solid var(--primary);color:var(--primary);
}
.btn--ghost:hover{background:rgba(0,229,160,0.12)}
.btn--ghost:active{transform:scale(0.97)}

.article-page{
  max-width:980px;margin:0 auto;
  padding:40px 24px 80px;
}
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;
  gap:6px;font-size:14px;color:var(--text-low);
  margin-bottom:24px;
}
.breadcrumb a{transition:color .2s}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb__sep{color:var(--text-disable)}
.breadcrumb__current{
  display:inline-block;max-width:320px;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  color:var(--text-mid);vertical-align:bottom;
}

.article-header{
  margin-bottom:32px;padding-bottom:28px;
  border-bottom:1px solid var(--line);
}
.article-title{
  font-size:38px;font-weight:800;line-height:1.25;color:var(--text-hi);
  margin-bottom:16px;word-break:break-word;
}
.article-meta{
  display:flex;flex-wrap:wrap;gap:10px 24px;
  font-size:14px;color:var(--text-low);
}
.article-meta__item{display:inline-flex;align-items:center;gap:6px}
.article-meta__cat{
  color:var(--primary);font-weight:500;
  background:rgba(139,92,246,0.15);
  padding:2px 12px;border-radius:999px;
  transition:background .2s;
}
.article-meta__cat:hover{background:rgba(139,92,246,0.25)}

.article-not-found{
  text-align:center;padding:80px 20px;
  border:1px dashed var(--line);border-radius:var(--radius);
  background:var(--bg-alt);
}
.article-not-found h1{
  font-size:28px;font-weight:800;color:var(--text-hi);margin-bottom:12px;
}
.article-not-found p{color:var(--text-low);margin-bottom:28px}

.article-content{
  font-size:16px;line-height:1.8;color:var(--text-mid);
  word-break:break-word;
}
.article-content p{margin-bottom:24px}
.article-content h2{
  font-size:24px;font-weight:700;color:var(--text-hi);
  margin:40px 0 16px;padding-left:14px;
  border-left:4px solid var(--primary);line-height:1.4;
}
.article-content h3{
  font-size:19px;font-weight:600;color:var(--text-hi);
  margin:32px 0 12px;line-height:1.4;
}
.article-content h4{
  font-size:17px;font-weight:600;color:var(--text-hi);
  margin:24px 0 10px;
}
.article-content ul{margin:16px 0 24px;padding-left:24px}
.article-content ul li{list-style:disc;margin-bottom:8px}
.article-content ol{margin:16px 0 24px;padding-left:24px}
.article-content ol li{list-style:decimal;margin-bottom:8px}
.article-content a{color:var(--primary);text-decoration:underline dotted;transition:text-decoration .2s}
.article-content a:hover{text-decoration:underline solid}
.article-content blockquote{
  border-left:4px solid var(--secondary);
  background:var(--bg-card);
  padding:18px 22px;margin:24px 0;
  border-radius:0 14px 14px 0;
  color:#AFAFC7;font-style:normal;
}
.article-content blockquote p{margin-bottom:8px}
.article-content blockquote p:last-child{margin-bottom:0}
.article-content img{
  border-radius:16px;border:1px solid var(--line);
  max-width:100%;height:auto;margin:24px 0;
}
.article-content code{
  background:#000;border:1px solid var(--line);
  padding:2px 8px;border-radius:6px;
  font-family:"JetBrains Mono","Roboto Mono",monospace;
  font-size:14px;color:var(--primary);
}
.article-content pre{
  background:#0A0B0F;border:1px solid var(--line);
  border-radius:12px;padding:18px;overflow-x:auto;margin:24px 0;
}
.article-content pre code{
  background:none;border:none;padding:0;color:var(--text-mid);
  font-size:14px;line-height:1.7;
}
.article-content table{
  width:100%;border-collapse:collapse;margin:24px 0;
  font-size:15px;
}
.article-content th,.article-content td{
  border:1px solid var(--line);padding:12px 16px;text-align:left;
}
.article-content th{background:var(--bg-alt);color:var(--text-hi);font-weight:600}
.article-content strong{color:var(--text-hi);font-weight:700}

.article-tags{
  display:flex;flex-wrap:wrap;gap:8px;
  margin-top:36px;padding-top:24px;
  border-top:1px solid var(--line);
}
.tag{
  display:inline-flex;align-items:center;
  padding:4px 14px;border-radius:999px;
  font-size:13px;font-weight:500;color:var(--text-mid);
  background:var(--bg-card);border:1px solid var(--line);
  transition:border-color .2s,color .2s;
}
.tag:hover{border-color:var(--primary);color:var(--primary)}

.related{
  margin-top:56px;padding-top:40px;
  border-top:1px solid var(--line);
}
.related__header{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;margin-bottom:24px;
}
.related__header h2{font-size:26px;font-weight:700;color:var(--text-hi)}
.related__more{
  font-size:14px;color:var(--primary);
  border-bottom:1px dashed var(--primary);
  transition:border-color .2s;
}
.related__more:hover{border-color:var(--primary);border-style:solid}
.related-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
}
.related-card{
  background:var(--bg-card);border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;
  transition:transform .2s,border-color .2s,box-shadow .2s;
  display:flex;flex-direction:column;
}
.related-card:hover{
  transform:translateY(-4px);
  border-color:rgba(0,229,160,0.3);
  box-shadow:var(--shadow-hover);
}
.related-card__thumb{
  height:150px;overflow:hidden;position:relative;
  background:var(--bg-alt);
}
.related-card__thumb img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .35s ease;
}
.related-card:hover .related-card__thumb img{transform:scale(1.05)}
.related-card h4{
  font-size:15px;font-weight:600;color:var(--text-hi);
  line-height:1.5;margin:16px 16px 6px;
  transition:color .2s;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.related-card:hover h4{color:var(--primary)}
.related-card time{
  font-size:13px;color:var(--text-low);margin:0 16px 16px;
}

.mobile-bottom-nav{
  position:fixed;bottom:0;left:0;right:0;z-index:80;
  background:var(--bg-card);border-top:1px solid var(--line);
  display:none;padding:6px 0 calc(6px + env(safe-area-inset-bottom));
}
.mobile-bottom-nav__item{
  flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;
  font-size:11px;color:var(--text-low);padding:4px 0;
  transition:color .2s;
}
.mobile-bottom-nav__item svg{width:20px;height:20px}
.mobile-bottom-nav__item.is-active{color:var(--primary)}

.footer{
  background:var(--bg-alt);
  border-top:1px solid var(--line);
  padding:64px 0 32px;
}
.footer__grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;margin-bottom:40px;
}
.footer__brand{
  font-size:20px;font-weight:800;color:var(--text-hi);
  margin-bottom:12px;
}
.footer__brand span{font-size:13px;font-weight:500;color:var(--text-low);margin-left:6px}
.footer__intro{
  font-size:14px;color:var(--text-low);line-height:1.7;
  margin-bottom:20px;max-width:340px;
}
.footer__social{display:flex;gap:10px}
.footer__social a{
  width:36px;height:36px;border-radius:10px;
  border:1px solid var(--line);
  background:var(--bg-card);
  display:flex;align-items:center;justify-content:center;
  color:var(--text-low);
  transition:color .2s,border-color .2s;
}
.footer__social a:hover{color:var(--primary);border-color:var(--primary)}
.footer__social svg{width:17px;height:17px}
.footer__heading{
  font-size:15px;font-weight:700;color:var(--text-hi);
  margin-bottom:16px;
}
.footer__links li{margin-bottom:10px}
.footer__links a{
  font-size:14px;color:var(--text-low);
  transition:color .2s;
}
.footer__links a:hover{color:var(--primary)}
.footer__contact div{
  font-size:14px;color:var(--text-low);
  margin-bottom:12px;line-height:1.5;
}
.footer__contact span{
  display:block;font-size:12px;color:var(--text-disable);margin-bottom:2px;
}
.footer__bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  padding-top:24px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-disable);
}

@media (max-width:1024px){
  .site-header__row{height:60px}
  .site-search{flex:0 1 200px}
  .site-menu-btn{display:flex}
  .site-header__cta{display:none}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px}
}

@media (max-width:768px){
  .site-search{flex:0 0 auto}
  .site-search input{width:0;padding:9px 12px;border-color:transparent;cursor:pointer}
  .site-search input::placeholder{color:transparent}
  .site-search input:focus{width:180px;border-color:var(--primary);padding-left:38px;cursor:text}
  .site-search input:focus::placeholder{color:var(--text-disable)}
  .site-search__icon{left:50%;transform:translate(-50%,-50%)}
  .site-search input:focus ~ .site-search__icon,
  .site-search__icon{transition:left .2s}
  .site-search input:focus + .site-search__icon,
  .site-search:focus-within .site-search__icon{left:14px;transform:translateY(-50%)}
  .article-title{font-size:28px}
  .related-grid{grid-template-columns:1fr;gap:16px}
  .mobile-bottom-nav{display:flex}
  .footer{padding-bottom:80px}
}

@media (max-width:640px){
  .container{padding:0 16px}
  .site-brand strong{font-size:19px}
  .site-brand span{font-size:11px;letter-spacing:1px}
  .article-page{padding:28px 16px 64px}
  .article-title{font-size:24px}
  .breadcrumb{font-size:13px}
  .article-content{font-size:15px}
  .article-content h2{font-size:21px}
  .footer__grid{grid-template-columns:1fr 1fr;gap:24px}
  .footer__intro{max-width:100%}
}

@media (min-width:640px){
  .site-header__cta{display:inline-flex}
}

@media (min-width:1024px){
  .site-menu-btn{display:none}
  .site-search input{width:100%}
  .site-search__icon{left:14px;transform:translateY(-50%)}
}

/* roulang page: category3 */
:root{
  --bg-base:#0E0F13;
  --bg-alt:#14161D;
  --bg-card:#1A1D26;
  --primary:#00E5A0;
  --primary-hover:#00C98D;
  --secondary:#8B5CF6;
  --accent:#FF8A00;
  --accent-hover:#E67B00;
  --text-hi:#FFFFFF;
  --text-mid:#D1D5DB;
  --text-low:#94A3B8;
  --text-disable:#5B6372;
  --line:rgba(255,255,255,0.08);
  --radius:16px;
  --shadow-card:0 8px 24px rgba(0,229,160,0.04);
  --shadow-hover:0 12px 32px rgba(0,229,160,0.10);
  --shadow-cta:0 4px 24px rgba(255,138,0,0.25);
  --font-sans:"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  --font-mono:"JetBrains Mono","Roboto Mono",monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-sans);
  background:var(--bg-base);
  color:var(--text-mid);
  line-height:1.8;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
button,input{font-family:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:80px 0}
.section-alt{background:var(--bg-alt)}
.text-primary{color:var(--primary)}
.text-violet{color:var(--secondary)}
.text-amber{color:var(--accent)}
.mono{font-family:var(--font-mono)}

/* ===== Header ===== */
.site-header{position:relative;z-index:100}
.header-top{
  height:72px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  background:var(--bg-base);
  border-bottom:1px solid var(--line);
  padding:0 24px;
}
.brand-logo{
  display:flex;
  align-items:baseline;
  gap:4px;
  color:var(--text-hi);
  font-weight:800;
  font-size:20px;
  white-space:nowrap;
  line-height:1.2;
}
.brand-logo strong{color:var(--primary);font-size:22px}
.brand-logo span{font-size:13px;color:var(--text-low);font-weight:400}
.header-search{
  flex:1;
  max-width:480px;
  position:relative;
  display:flex;
  align-items:center;
}
.header-search input{
  width:100%;
  height:42px;
  border-radius:999px;
  background:var(--bg-alt);
  border:1px solid rgba(255,255,255,0.1);
  color:var(--text-hi);
  font-size:14px;
  padding:0 20px 0 44px;
  outline:none;
  transition:border-color .2s;
}
.header-search input:focus{border-color:var(--primary)}
.header-search svg{
  position:absolute;
  left:16px;
  width:16px;
  height:16px;
  color:var(--text-low);
  pointer-events:none;
}
.header-cta{
  display:flex;
  align-items:center;
  gap:12px;
}
.btn-accent{
  background:var(--accent);
  color:#0B0B0F;
  font-weight:700;
  font-size:14px;
  border:none;
  border-radius:12px;
  padding:12px 26px;
  cursor:pointer;
  box-shadow:var(--shadow-cta);
  transition:background .2s,transform .15s,box-shadow .2s;
  white-space:nowrap;
}
.btn-accent:hover{background:#FFA133;box-shadow:0 6px 30px rgba(255,138,0,0.35)}
.btn-accent:active{transform:scale(.97)}
.header-menu-btn{
  background:var(--bg-alt);
  border:1px solid var(--line);
  border-radius:10px;
  width:42px;
  height:42px;
  display:none;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  color:var(--text-mid);
}
.header-menu-btn:hover{border-color:var(--primary);color:var(--primary)}

/* Channel nav */
.channel-nav{
  position:sticky;
  top:0;
  z-index:90;
  background:rgba(14,15,19,0.96);
  border-bottom:1px solid var(--line);
  backdrop-filter:none;
}
.channel-nav__tabs{
  display:flex;
  overflow-x:auto;
  gap:8px;
  padding:8px 24px;
  scrollbar-width:none;
  -ms-overflow-style:none;
  white-space:nowrap;
}
.channel-nav__tabs::-webkit-scrollbar{display:none}
.channel-nav__tab{
  display:inline-flex;
  align-items:center;
  height:34px;
  padding:0 18px;
  border-radius:999px;
  color:var(--text-low);
  font-size:14px;
  font-weight:500;
  background:transparent;
  border:1px solid transparent;
  transition:all .2s;
  cursor:pointer;
}
.channel-nav__tab:first-child{margin-left:0}
.channel-nav__tab:hover{
  background:var(--bg-card);
  color:var(--text-hi);
}
.channel-nav__tab.is-active{
  background:rgba(0,229,160,0.15);
  color:var(--primary);
  border-color:rgba(0,229,160,0.3);
  font-weight:700;
}

/* ===== Hero ===== */
.cat-hero{
  background:var(--bg-alt);
  border-bottom:4px solid var(--primary);
  position:relative;
  overflow:hidden;
  padding:64px 0 56px;
}
.cat-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    linear-gradient(135deg, transparent 0%, transparent 48%, rgba(255,255,255,0.03) 50%, transparent 52%, transparent 100%),
    linear-gradient(45deg, transparent 0%, transparent 48%, rgba(255,255,255,0.02) 50%, transparent 52%, transparent 100%);
  background-size:40px 40px;
  pointer-events:none;
}
.cat-hero__inner{
  position:relative;
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:60px;
}
.cat-hero__title{
  flex:0 0 auto;
}
.cat-hero__title h1{
  font-size:44px;
  font-weight:800;
  color:var(--text-hi);
  line-height:1.2;
}
.cat-hero__title .subline{
  margin-top:8px;
  font-size:15px;
  color:var(--primary);
  font-weight:600;
}
.cat-hero__desc{
  max-width:580px;
  color:var(--text-mid);
  font-size:16px;
  line-height:1.8;
}

/* ===== Content sections ===== */
.content-2col{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:64px;
  align-items:center;
}
.content-2col.reverse .content-img{order:2}
.content-2col.reverse .content-txt{order:1}
.content-img{
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid var(--line);
  position:relative;
  box-shadow:var(--shadow-card);
}
.content-img img{
  width:100%;
  height:340px;
  object-fit:cover;
  transition:transform .4s;
}
.content-img:hover img{transform:scale(1.03)}
.content-img::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(to top, rgba(14,15,19,0.25), transparent 50%);
  pointer-events:none;
}
.content-txt .tag-pill{
  display:inline-flex;
  align-items:center;
  background:rgba(139,92,246,0.18);
  color:var(--secondary);
  border:1px solid rgba(139,92,246,0.3);
  font-size:13px;
  font-weight:600;
  border-radius:999px;
  padding:4px 14px;
  margin-bottom:18px;
}
.content-txt h2{
  color:var(--text-hi);
  font-size:28px;
  font-weight:700;
  margin-bottom:16px;
}
.content-txt p{
  color:var(--text-mid);
  margin-bottom:14px;
}
.content-txt ul{
  list-style:none;
  margin-top:8px;
}
.content-txt ul li{
  position:relative;
  padding-left:26px;
  margin-bottom:10px;
  color:var(--text-mid);
}
.content-txt ul li::before{
  content:"";
  position:absolute;
  left:0;
  top:10px;
  width:8px;
  height:8px;
  background:var(--primary);
  border-radius:2px;
  transform:rotate(45deg);
}
.panel-note{
  background:var(--bg-card);
  border-left:4px solid var(--secondary);
  border-radius:0 12px 12px 0;
  padding:18px 22px;
  margin-top:20px;
  color:var(--text-mid);
  font-size:14px;
  line-height:1.7;
}
.panel-note strong{color:var(--primary)}

/* ===== Activity card grid ===== */
.act-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:28px;
  margin-top:44px;
}
.act-card{
  background:var(--bg-card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:28px 26px;
  transition:transform .25s,border-color .25s,box-shadow .25s;
  position:relative;
  overflow:hidden;
}
.act-card::before{
  content:"";
  position:absolute;
  top:0;left:0;
  width:100%;
  height:3px;
  background:var(--primary);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .3s;
}
.act-card:hover{
  transform:translateY(-4px);
  border-color:rgba(0,229,160,0.3);
  box-shadow:var(--shadow-hover);
}
.act-card:hover::before{transform:scaleX(1)}
.act-card__icon{
  width:48px;
  height:48px;
  border-radius:12px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:20px;
  background:rgba(0,229,160,0.12);
  color:var(--primary);
  margin-bottom:18px;
}
.act-card__icon.violet{
  background:rgba(139,92,246,0.14);
  color:var(--secondary);
}
.act-card__icon.amber{
  background:rgba(255,138,0,0.12);
  color:var(--accent);
}
.act-card h3{
  color:var(--text-hi);
  font-size:18px;
  font-weight:600;
  margin-bottom:10px;
}
.act-card p{
  color:var(--text-low);
  font-size:14px;
  line-height:1.7;
}

/* ===== Steps ===== */
.steps-wrap{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:0;
  margin-top:48px;
  position:relative;
}
.step-item{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  gap:14px;
  padding:28px 24px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--bg-card);
  transition:border-color .25s,transform .25s;
  position:relative;
}
.step-item:hover{
  border-color:rgba(0,229,160,0.35);
  transform:translateY(-4px);
}
.step-item .step-num{
  font-family:var(--font-mono);
  font-size:52px;
  font-weight:800;
  color:var(--secondary);
  line-height:1;
  opacity:.85;
}
.step-item h3{
  color:var(--text-hi);
  font-size:18px;
  font-weight:600;
}
.step-item p{
  color:var(--text-low);
  font-size:14px;
  line-height:1.7;
}
.step-connect{
  position:absolute;
  top:50%;
  left:calc(50% - 20px);
  width:40px;
  height:100%;
  border-top:2px dashed rgba(139,92,246,0.4);
  z-index:2;
}

/* ===== Entry grid ===== */
.entry-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  margin-top:44px;
}
.entry-card{
  display:flex;
  flex-direction:column;
  align-items:center;
  text-align:center;
  background:var(--bg-card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:32px 20px;
  transition:border-color .25s,transform .25s,box-shadow .25s;
}
.entry-card:hover{
  border-color:rgba(0,229,160,0.35);
  transform:translateY(-5px);
  box-shadow:var(--shadow-hover);
}
.entry-card__icon{
  width:56px;
  height:56px;
  border-radius:16px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:22px;
  background:rgba(0,229,160,0.12);
  color:var(--primary);
  margin-bottom:16px;
}
.entry-card h3{
  color:var(--text-hi);
  font-size:16px;
  font-weight:600;
  margin-bottom:6px;
}
.entry-card span{
  color:var(--text-low);
  font-size:13px;
}

/* ===== CTA ===== */
.cta-block{
  position:relative;
  background:var(--bg-alt);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:72px 0;
  text-align:center;
  overflow:hidden;
}
.cta-block::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    linear-gradient(135deg, transparent 0%, transparent 48%, rgba(255,255,255,0.025) 50%, transparent 52%, transparent 100%),
    linear-gradient(45deg, transparent 0%, transparent 48%, rgba(255,255,255,0.02) 50%, transparent 52%, transparent 100%);
  background-size:32px 32px;
}
.cta-block::after{
  content:"";
  position:absolute;
  bottom:-60px;
  left:50%;
  transform:translateX(-50%);
  width:500px;
  height:180px;
  background:var(--primary);
  filter:blur(90px);
  opacity:.12;
  pointer-events:none;
  border-radius:50%;
}
.cta-block .container{position:relative;z-index:2}
.cta-block h2{
  color:var(--text-hi);
  font-size:28px;
  font-weight:700;
  margin-bottom:12px;
}
.cta-block p{
  color:var(--text-low);
  font-size:16px;
  margin-bottom:32px;
  max-width:520px;
  margin-left:auto;
  margin-right:auto;
}

/* ===== FAQ ===== */
.faq-wrap{
  max-width:860px;
  margin:44px auto 0;
}
.faq-item{
  border-bottom:1px solid var(--line);
}
.faq-item__q{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:20px 0;
  cursor:pointer;
  font-weight:600;
  color:var(--text-hi);
  font-size:16px;
  transition:color .2s;
}
.faq-item__q:hover{color:var(--primary)}
.faq-item__q .icon{
  flex:0 0 24px;
  width:24px;
  height:24px;
  position:relative;
  display:inline-block;
  transition:transform .3s;
}
.faq-item__q .icon::before,
.faq-item__q .icon::after{
  content:"";
  position:absolute;
  background:var(--primary);
  border-radius:2px;
  transition:transform .3s;
}
.faq-item__q .icon::before{
  width:18px;
  height:2px;
  top:11px;
  left:3px;
}
.faq-item__q .icon::after{
  width:2px;
  height:18px;
  top:3px;
  left:11px;
}
.faq-item.active .faq-item__q .icon{transform:rotate(45deg)}
.faq-item.active .faq-item__q{color:var(--primary)}
.faq-item__a{
  max-height:0;
  overflow:hidden;
  transition:max-height .35s ease;
  color:var(--text-mid);
  font-size:15px;
  line-height:1.75;
}
.faq-item__a .inner{padding:0 40px 20px 0}

/* ===== Footer ===== */
.footer{
  background:var(--bg-base);
  border-top:1px solid var(--line);
  padding:64px 0 0;
}
.footer__grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:48px;
  padding-bottom:48px;
}
.footer__brand{
  font-size:22px;
  font-weight:800;
  color:var(--text-hi);
  margin-bottom:12px;
}
.footer__brand span{
  font-size:14px;
  color:var(--text-low);
  font-weight:400;
  margin-left:4px;
}
.footer__intro{
  color:var(--text-low);
  font-size:14px;
  line-height:1.75;
  margin-bottom:20px;
  max-width:340px;
}
.footer__social{
  display:flex;
  gap:12px;
}
.footer__social a{
  width:38px;
  height:38px;
  border-radius:10px;
  border:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--text-low);
  transition:all .25s;
}
.footer__social a:hover{
  border-color:var(--primary);
  color:var(--primary);
  transform:translateY(-2px);
}
.footer__social svg{width:16px;height:16px}
.footer__heading{
  color:var(--text-hi);
  font-size:16px;
  font-weight:600;
  margin-bottom:18px;
}
.footer__links{
  list-style:none;
  display:flex;
  flex-direction:column;
  gap:10px;
}
.footer__links a{
  color:var(--text-low);
  font-size:14px;
  transition:color .2s;
}
.footer__links a:hover{color:var(--primary)}
.footer__contact div{
  color:var(--text-mid);
  font-size:14px;
  margin-bottom:14px;
}
.footer__contact span{
  display:block;
  color:var(--text-disable);
  font-size:12px;
  margin-bottom:2px;
}
.footer__bottom{
  border-top:1px solid var(--line);
  padding:22px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
}
.footer__bottom p{
  color:var(--text-disable);
  font-size:13px;
}
.footer__bottom a{
  color:var(--text-low);
  font-size:13px;
}
.footer__bottom a:hover{color:var(--primary)}

/* ===== Mobile bottom bar ===== */
.mobile-bottom{
  display:none;
  position:fixed;
  bottom:0;
  left:0;
  right:0;
  background:var(--bg-card);
  border-top:1px solid var(--line);
  z-index:200;
  padding:8px 12px calc(8px + env(safe-area-inset-bottom));
  justify-content:space-around;
}
.mobile-bottom a{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:3px;
  font-size:11px;
  color:var(--text-low);
  transition:color .2s;
}
.mobile-bottom a i{font-size:18px}
.mobile-bottom a.active{color:var(--primary)}
.mobile-bottom a:hover{color:var(--primary)}

/* ===== Responsive ===== */
@media (max-width:1024px){
  .header-search{max-width:320px}
  .content-2col{grid-template-columns:1fr;gap:40px}
  .content-2col.reverse .content-img{order:0}
  .act-grid{grid-template-columns:1fr 1fr}
  .steps-wrap{grid-template-columns:1fr;gap:20px}
  .entry-grid{grid-template-columns:1fr 1fr}
  .footer__grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .header-top{padding:0 16px;height:60px}
  .brand-logo strong{font-size:18px}
  .brand-logo span{display:none}
  .header-search{max-width:180px}
  .channel-nav__tabs{padding:8px 16px}
  .section{padding:56px 0}
  .cat-hero{padding:44px 0 40px}
  .cat-hero__inner{flex-direction:column;gap:20px}
  .cat-hero__title h1{font-size:30px}
  .content-2col{gap:28px}
  .content-img img{height:230px}
  .cta-block{padding:56px 0}
}
@media (max-width:640px){
  .header-search{display:none}
  .header-menu-btn{display:flex}
  .btn-accent{padding:11px 18px;font-size:13px}
  .act-grid{grid-template-columns:1fr}
  .entry-grid{grid-template-columns:1fr 1fr;gap:16px}
  .entry-card{padding:22px 14px}
  .footer__grid{grid-template-columns:1fr;gap:36px;padding-bottom:80px}
  .footer__social a{width:44px;height:44px}
  .mobile-bottom{display:flex}
  .content-txt h2{font-size:22px}
  .cta-block h2{font-size:22px}
}
@media (min-width:1025px){
  .content-2col.reverse .content-img{order:0}
}

/* roulang page: category2 */
/* ===== Design Variables ===== */
:root {
  --bg-base: #0E0F13;
  --bg-alt: #14161D;
  --bg-card: #1A1D26;
  --primary: #00E5A0;
  --primary-hover: #00C98D;
  --secondary: #8B5CF6;
  --accent: #FF8A00;
  --accent-hover: #E67B00;
  --text-hi: #FFFFFF;
  --text-mid: #D1D5DB;
  --text-low: #94A3B8;
  --text-disable: #5B6372;
  --line: rgba(255, 255, 255, 0.08);
  --radius: 16px;
  --radius-sm: 12px;
  --shadow-card: 0 8px 24px rgba(0, 229, 160, 0.04);
  --shadow-hover: 0 12px 32px rgba(0, 229, 160, 0.1);
  --shadow-accent: 0 4px 24px rgba(255, 138, 0, 0.25);
  --font-sans: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --font-mono: "JetBrains Mono", "Roboto Mono", monospace;
}

/* ===== Reset / Base ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-sans);
  background: var(--bg-base);
  color: var(--text-mid);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a {
  text-decoration: none;
  color: inherit;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}
a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}
img {
  display: block;
  max-width: 100%;
  height: auto;
}
button {
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
}
ul, ol {
  list-style: none;
}

/* ===== Container ===== */
.container {
  width: 100% !important;
  max-width: 1200px !important;
  margin-left: auto !important;
  margin-right: auto !important;
  padding-left: 24px !important;
  padding-right: 24px !important;
}
@media (max-width: 640px) {
  .container {
    padding-left: 16px !important;
    padding-right: 16px !important;
  }
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 12px;
  font-weight: 700;
  font-size: 16px;
  line-height: 1.4;
  border: 2px solid transparent;
  transition: all 0.2s ease;
  white-space: nowrap;
}
.btn:active {
  transform: scale(0.97);
}
.btn-accent {
  background: var(--accent);
  color: #000;
  border-color: var(--accent);
  box-shadow: var(--shadow-accent);
}
.btn-accent:hover,
.btn-accent:focus-visible {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  box-shadow: 0 6px 30px rgba(255, 138, 0, 0.35);
  color: #000;
}
.btn-outline {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn-outline:hover,
.btn-outline:focus-visible {
  background: rgba(0, 229, 160, 0.15);
  border-color: var(--primary);
  color: var(--primary);
}
.btn-lg {
  padding: 16px 44px;
  font-size: 17px;
  border-radius: 14px;
}

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-base);
  border-bottom: 1px solid var(--line);
}
.header-top {
  background: var(--bg-base);
}
.header-top__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  height: 72px;
}
.brand-logo {
  display: inline-flex;
  align-items: baseline;
  font-size: 22px;
  font-weight: 800;
  color: var(--text-hi);
  letter-spacing: 0.5px;
  flex-shrink: 0;
  line-height: 1.2;
}
.brand-logo span {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-low);
  margin-left: 6px;
}
.header-search {
  flex: 1;
  max-width: 400px;
  height: 42px;
  background: var(--bg-alt);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  display: flex;
  align-items: center;
  padding: 0 16px;
  gap: 8px;
  transition: border-color 0.2s ease;
}
.header-search:focus-within {
  border-color: var(--primary);
}
.header-search svg {
  width: 18px;
  height: 18px;
  color: var(--text-low);
  flex-shrink: 0;
}
.header-search input {
  flex: 1;
  background: transparent;
  border: 0;
  outline: 0;
  color: var(--text-hi);
  font-size: 14px;
}
.header-search input::placeholder {
  color: var(--text-disable);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}
.header-actions .btn-accent {
  padding: 10px 24px;
  font-size: 14px;
  border-radius: 10px;
}
.search-icon-btn,
.menu-btn {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--bg-card);
  align-items: center;
  justify-content: center;
  color: var(--text-mid);
  transition: border-color 0.2s ease, color 0.2s ease;
}
.search-icon-btn:hover,
.menu-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}
.search-icon-btn svg,
.menu-btn svg {
  width: 20px;
  height: 20px;
}

/* Mobile search panel */
.mobile-search-panel {
  display: none;
  background: var(--bg-alt);
  padding: 12px 0;
  border-top: 1px solid var(--line);
}
.mobile-search-panel.is-open {
  display: block;
}
.mobile-search-panel .container {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-base);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  padding-top: 6px;
  padding-bottom: 6px;
}
.mobile-search-panel input {
  flex: 1;
  background: transparent;
  border: 0;
  outline: 0;
  color: var(--text-hi);
  font-size: 14px;
  padding: 4px 0;
}
.mobile-search-panel input::placeholder {
  color: var(--text-disable);
}

/* ===== Channel Nav ===== */
.channel-nav {
  position: sticky;
  top: 0;
  z-index: 99;
  background: var(--bg-base);
  border-bottom: 1px solid var(--line);
}
.channel-nav__tabs {
  display: flex;
  align-items: center;
  gap: 8px;
  overflow-x: auto;
  white-space: nowrap;
  padding: 8px 0 10px;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.channel-nav__tabs::-webkit-scrollbar {
  display: none;
}
.channel-nav__tab {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 32px;
  padding: 0 18px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-low);
  border: 1px solid transparent;
  transition: all 0.2s ease;
}
.channel-nav__tab:hover {
  background: var(--bg-card);
  color: var(--text-hi);
  border-color: var(--line);
}
.channel-nav__tab.is-active {
  background: rgba(0, 229, 160, 0.15);
  color: var(--primary);
  border-color: rgba(0, 229, 160, 0.3);
  font-weight: 600;
}

/* ===== Page Hero ===== */
.page-hero {
  position: relative;
  background-color: var(--bg-alt);
  background-size: cover;
  background-position: center;
  padding: 88px 0 64px;
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(14, 15, 19, 0.85) 0%, rgba(14, 15, 19, 0.55) 100%);
  z-index: 1;
}
.page-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(0, 229, 160, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 229, 160, 0.04) 1px, transparent 1px);
  background-size: 42px 42px;
  z-index: 2;
  pointer-events: none;
}
.page-hero__inner {
  position: relative;
  z-index: 3;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.page-hero__text {
  max-width: 720px;
}
.page-hero__text h1 {
  font-size: 44px;
  font-weight: 800;
  line-height: 1.2;
  color: var(--text-hi);
  letter-spacing: 1px;
}
.page-hero__text p {
  margin-top: 16px;
  font-size: 17px;
  line-height: 1.8;
  color: var(--text-mid);
  max-width: 560px;
}
.page-hero__meta {
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.page-hero__meta span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--bg-card);
  border: 1px solid var(--line);
  font-size: 13px;
  color: var(--text-low);
}
.page-hero__meta svg {
  width: 14px;
  height: 14px;
  color: var(--primary);
}
.page-hero__line {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 4px;
  background: var(--primary);
  z-index: 4;
}
@media (max-width: 768px) {
  .page-hero {
    padding: 56px 0 40px;
  }
  .page-hero__inner {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .page-hero__text h1 {
    font-size: 30px;
  }
  .page-hero__text p {
    font-size: 15px;
  }
}

/* ===== Info Sections ===== */
.info-section {
  padding: 80px 0;
  background: var(--bg-base);
}
.info-section.bg-alt {
  background: var(--bg-alt);
}
.info-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.info-row.row-reverse .info-media {
  order: 2;
}
.info-row.row-reverse .info-content {
  order: 1;
}
.info-media {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-card);
}
.info-media img {
  width: 100%;
  height: 360px;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.info-media:hover img {
  transform: scale(1.03);
}
.info-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(14, 15, 19, 0.4) 100%);
  pointer-events: none;
}
.info-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 14px;
  border-radius: 999px;
  background: rgba(139, 92, 246, 0.15);
  border: 1px solid rgba(139, 92, 246, 0.3);
  color: var(--secondary);
  font-size: 13px;
  font-weight: 600;
}
.info-content h2 {
  margin: 16px 0 16px;
  font-size: 28px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--text-hi);
}
.info-content p {
  margin-bottom: 14px;
  line-height: 1.8;
  color: var(--text-mid);
  font-size: 16px;
}
.info-list {
  margin-top: 20px;
  display: grid;
  gap: 10px;
}
.info-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--text-mid);
  font-size: 15px;
  line-height: 1.6;
}
.info-list li svg {
  width: 18px;
  height: 18px;
  color: var(--primary);
  flex-shrink: 0;
  margin-top: 3px;
}
@media (max-width: 1024px) {
  .info-row {
    gap: 36px;
  }
  .info-media img {
    height: 300px;
  }
}
@media (max-width: 768px) {
  .info-section {
    padding: 56px 0;
  }
  .info-row {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .info-row.row-reverse .info-media {
    order: 1;
  }
  .info-row.row-reverse .info-content {
    order: 2;
  }
  .info-content h2 {
    font-size: 22px;
  }
  .info-media img {
    height: 240px;
  }
}

/* ===== Entry Grid ===== */
.entry-grid-section {
  padding: 80px 0;
  background: var(--bg-alt);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.entry-grid__head {
  text-align: center;
  margin-bottom: 40px;
}
.entry-grid__head h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-hi);
}
.entry-grid__head p {
  margin-top: 8px;
  color: var(--text-low);
  font-size: 15px;
}
.entry-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.entry-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 28px 24px;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  gap: 12px;
  transition: all 0.25s ease;
  position: relative;
  overflow: hidden;
}
.entry-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--primary);
  opacity: 0;
  transition: opacity 0.25s ease;
}
.entry-item:hover {
  border-color: rgba(0, 229, 160, 0.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.entry-item:hover::before {
  opacity: 1;
}
.entry-item__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(0, 229, 160, 0.12);
  color: var(--primary);
  border: 1px solid rgba(0, 229, 160, 0.2);
}
.entry-item__icon svg {
  width: 22px;
  height: 22px;
}
.entry-item__title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-hi);
}
.entry-item__desc {
  font-size: 13px;
  color: var(--text-low);
  line-height: 1.6;
}
@media (max-width: 1024px) {
  .entry-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 520px) {
  .entry-grid {
    grid-template-columns: 1fr;
  }
}

/* ===== FAQ ===== */
.faq-section {
  padding: 80px 0;
  background: var(--bg-base);
}
.faq-heading {
  text-align: center;
  margin-bottom: 40px;
}
.faq-heading h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-hi);
}
.faq-heading p {
  margin-top: 8px;
  color: var(--text-low);
  font-size: 15px;
}
.faq-list {
  max-width: 840px;
  margin: 0 auto;
  border-top: 1px solid var(--line);
}
.faq-item {
  border-bottom: 1px solid var(--line);
}
.faq-item__question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 0;
  cursor: pointer;
  text-align: left;
  font-size: 17px;
  font-weight: 600;
  color: var(--text-hi);
  transition: color 0.2s ease;
}
.faq-item__question:hover {
  color: var(--primary);
}
.faq-item__icon {
  position: relative;
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--bg-card);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}
.faq-item__icon::before,
.faq-item__icon::after {
  content: "";
  position: absolute;
  background: var(--primary);
  border-radius: 2px;
  transition: transform 0.3s ease;
}
.faq-item__icon::before {
  width: 12px;
  height: 2px;
}
.faq-item__icon::after {
  width: 2px;
  height: 12px;
}
.faq-item.is-open .faq-item__icon::after {
  transform: rotate(90deg);
  opacity: 0;
}
.faq-item.is-open .faq-item__icon::before {
  transform: rotate(180deg);
}
.faq-item__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  padding: 0 32px 0 0;
  color: var(--text-mid);
  font-size: 15px;
  line-height: 1.75;
}
.faq-item.is-open .faq-item__answer {
  max-height: 300px;
  padding-bottom: 20px;
}
@media (max-width: 640px) {
  .faq-section {
    padding: 56px 0;
  }
  .faq-item__question {
    font-size: 16px;
  }
}

/* ===== CTA ===== */
.cta-section {
  position: relative;
  padding: 88px 0;
  background-color: var(--bg-alt);
  background-size: cover;
  background-position: center;
  overflow: hidden;
  border-top: 1px solid var(--line);
}
.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(14, 15, 19, 0.88) 0%, rgba(20, 22, 29, 0.92) 100%);
  z-index: 1;
}
.cta-section::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -40px;
  transform: translateX(-50%);
  width: 460px;
  height: 180px;
  background: rgba(0, 229, 160, 0.2);
  filter: blur(80px);
  z-index: 2;
  pointer-events: none;
}
.cta-inner {
  position: relative;
  z-index: 3;
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}
.cta-inner h2 {
  font-size: 32px;
  font-weight: 800;
  color: var(--text-hi);
  line-height: 1.3;
}
.cta-inner p {
  margin: 16px auto 32px;
  color: var(--text-low);
  font-size: 16px;
  max-width: 480px;
}
@media (max-width: 768px) {
  .cta-section {
    padding: 56px 0;
  }
  .cta-inner h2 {
    font-size: 24px;
  }
}

/* ===== Footer ===== */
.footer {
  background: var(--bg-base);
  border-top: 1px solid var(--line);
  padding-top: 64px;
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 40px;
}
.footer__brand {
  font-size: 22px;
  font-weight: 800;
  color: var(--text-hi);
  letter-spacing: 0.5px;
  margin-bottom: 12px;
}
.footer__brand span {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-low);
  margin-left: 6px;
}
.footer__intro {
  color: var(--text-low);
  font-size: 14px;
  line-height: 1.75;
  max-width: 320px;
  margin-bottom: 20px;
}
.footer__social {
  display: flex;
  gap: 10px;
}
.footer__social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--bg-card);
  border: 1px solid var(--line);
  color: var(--text-low);
  transition: all 0.2s ease;
}
.footer__social a:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
}
.footer__social svg {
  width: 18px;
  height: 18px;
}
.footer__heading {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-hi);
  margin-bottom: 16px;
}
.footer__links {
  display: grid;
  gap: 10px;
}
.footer__links li a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-low);
  font-size: 14px;
  transition: color 0.2s ease;
}
.footer__links li a:hover {
  color: var(--primary);
}
.footer__contact {
  display: grid;
  gap: 14px;
}
.footer__contact div {
  color: var(--text-low);
  font-size: 14px;
  line-height: 1.6;
}
.footer__contact span {
  display: block;
  color: var(--text-disable);
  font-size: 12px;
  margin-bottom: 2px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.footer__bottom {
  border-top: 1px solid var(--line);
  padding: 22px 0;
}
.footer__bottom-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  color: var(--text-disable);
  font-size: 13px;
}
@media (max-width: 1024px) {
  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}
@media (max-width: 640px) {
  .footer__grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer {
    padding-top: 48px;
  }
  .footer__bottom-inner {
    flex-direction: column;
    text-align: center;
  }
}

/* ===== Mobile Bottom Nav ===== */
.mobile-bottom-nav {
  display: none;
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 90;
  background: var(--bg-card);
  border-top: 1px solid var(--line);
  padding: 6px 0 calc(6px + env(safe-area-inset-bottom));
}
.mobile-bottom-nav__item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: 6px 0;
  color: var(--text-low);
  font-size: 11px;
  transition: color 0.2s ease;
}
.mobile-bottom-nav__item svg {
  width: 20px;
  height: 20px;
}
.mobile-bottom-nav__item:hover,
.mobile-bottom-nav__item.is-active {
  color: var(--primary);
}
@media (max-width: 1023px) {
  .mobile-bottom-nav {
    display: flex;
  }
  body {
    padding-bottom: 58px;
  }
}

/* ===== Responsive ===== */
@media (max-width: 1023px) {
  .header-top__inner {
    height: 60px;
  }
  .header-search {
    display: none;
  }
  .search-icon-btn,
  .menu-btn {
    display: inline-flex;
  }
  .header-top .btn-accent {
    padding: 8px 16px;
    font-size: 13px;
  }
}