/* roulang page: index */
:root {
  --bg-deep: #080D18;
  --bg-main: #0B1120;
  --bg-panel: rgba(13, 20, 36, 0.82);
  --bg-card: rgba(255, 255, 255, 0.055);
  --bg-card-hover: rgba(255, 255, 255, 0.09);
  --accent: #2CE5D8;
  --accent-blue: #22D3EE;
  --purple: #818CF8;
  --indigo: #6366F1;
  --amber: #F5B04A;
  --success: #34D399;
  --error: #FB7185;
  --warning: #FBBF24;
  --text-primary: #E6EDF7;
  --text-secondary: #9AA8BE;
  --text-muted: #6B7B98;
  --header-bg: rgba(255, 255, 255, 0.96);
  --primary-dark: #06251F;
  --radius-sm: 10px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 999px;
  --shadow-card: 0 8px 30px rgba(0, 0, 0, 0.25);
  --shadow-glow: 0 0 24px rgba(44, 229, 216, 0.28);
  --border-glass: 1px solid rgba(255, 255, 255, 0.1);
  --transition: all 0.25s ease;
  --container: 1280px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: var(--bg-main);
  color: var(--text-primary);
  line-height: 1.75;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

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

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

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

ul,
ol {
  list-style: none;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding-left: 32px;
  padding-right: 32px;
}

@media (max-width: 768px) {
  .container {
    padding-left: 20px;
    padding-right: 20px;
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 24px;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 15px;
  line-height: 1;
  cursor: pointer;
  border: 1px solid transparent;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, #34E5D2 0%, #22D3EE 60%, #38BDF8 100%);
  color: #06251F;
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  box-shadow: 0 0 36px rgba(44, 229, 216, 0.45);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(1px);
  filter: brightness(0.9);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.22);
  color: var(--text-primary);
}

.btn-outline:hover {
  border-color: rgba(255, 255, 255, 0.55);
  background: rgba(255, 255, 255, 0.1);
}

.btn-white-header {
  background: linear-gradient(135deg, #2CE5D8, #22D3EE);
  color: #06251F;
  min-height: 38px;
  padding: 0 20px;
  font-size: 14px;
  box-shadow: 0 2px 12px rgba(34, 211, 238, 0.24);
}

.btn-white-header:hover {
  box-shadow: 0 4px 18px rgba(34, 211, 238, 0.4);
  transform: translateY(-1px);
}

.btn-lg {
  min-height: 50px;
  padding: 0 34px;
  font-size: 16px;
}

@media (max-width: 480px) {
  .btn-lg {
    width: 100%;
  }
}

/* Labels / tags */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 500;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-primary);
  line-height: 1.4;
}

.tag-hot {
  background: rgba(245, 176, 74, 0.12);
  border: 1px solid rgba(245, 176, 74, 0.35);
  color: #F5B04A;
}

.tag-cyan {
  background: rgba(44, 229, 216, 0.1);
  border: 1px solid rgba(44, 229, 216, 0.3);
  color: #2CE5D8;
}

.tag-purple {
  background: rgba(129, 140, 248, 0.1);
  border: 1px solid rgba(129, 140, 248, 0.3);
  color: #A5B4FC;
}

.tag-success {
  background: rgba(52, 211, 153, 0.1);
  border: 1px solid rgba(52, 211, 153, 0.3);
  color: #34D399;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: var(--header-bg);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid #E7ECF3;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 20px;
}

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

.brand-icon {
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: linear-gradient(135deg, #2CE5D8 0%, #22D3EE 50%, #6366F1 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 10px rgba(34, 211, 238, 0.32);
}

.brand-icon svg {
  width: 21px;
  height: 21px;
  fill: #07251F;
}

.brand-text {
  font-size: 17px;
  font-weight: 700;
  color: #0F172A;
  letter-spacing: 0.2px;
  white-space: nowrap;
}

.main-nav {
  display: flex;
  gap: 6px;
  align-items: center;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  height: 38px;
  padding: 0 16px;
  border-radius: var(--radius-full);
  color: #334155;
  font-weight: 500;
  font-size: 15px;
  transition: var(--transition);
  white-space: nowrap;
}

.nav-link:hover {
  background: #F1F5F9;
  color: #0F172A;
}

.nav-link.active {
  background: rgba(44, 229, 216, 0.15);
  color: #0E7C74;
  font-weight: 600;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.search-wrap {
  position: relative;
  width: 220px;
}

.search-wrap input {
  width: 100%;
  height: 40px;
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  background: #F1F5F9;
  color: #1E293B;
  font-size: 14px;
  padding: 0 16px 0 36px;
  outline: none;
  transition: var(--transition);
}

.search-wrap input::placeholder {
  color: #94A3B8;
}

.search-wrap input:focus {
  border-color: #2CE5D8;
  background: #fff;
  box-shadow: 0 0 0 3px rgba(44, 229, 216, 0.15);
}

.search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 14px;
  height: 14px;
  border: 2px solid #64748B;
  border-radius: 50%;
  pointer-events: none;
}

.search-icon::after {
  content: "";
  position: absolute;
  right: -4px;
  bottom: -3px;
  width: 5px;
  height: 2px;
  background: #64748B;
  border-radius: 2px;
  transform: rotate(45deg);
}

.menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  border: none;
  background: #F1F5F9;
  cursor: pointer;
  position: relative;
}

.menu-toggle span,
.menu-toggle::before,
.menu-toggle::after {
  content: "";
  position: absolute;
  left: 10px;
  right: 10px;
  height: 2px;
  background: #0F172A;
  border-radius: 2px;
  transition: var(--transition);
}

.menu-toggle span {
  top: 19px;
}

.menu-toggle::before {
  top: 12px;
}

.menu-toggle::after {
  top: 26px;
}

.mobile-panel {
  display: none;
  background: #fff;
  border-top: 1px solid #F1F5F9;
  padding: 16px 20px 22px;
}

.mobile-panel.active {
  display: block;
}

.mobile-panel .mobile-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.mobile-panel .mobile-nav a {
  padding: 12px 14px;
  border-radius: var(--radius-md);
  color: #1E293B;
  font-size: 16px;
  font-weight: 500;
  border-bottom: 1px solid #F8FAFC;
}

.mobile-panel .mobile-nav a.active {
  background: rgba(44, 229, 216, 0.15);
  color: #0E7C74;
}

.mobile-panel .mobile-btn-row {
  display: flex;
  gap: 12px;
  margin-top: 14px;
}

.mobile-panel .btn {
  flex: 1;
  font-size: 14px;
  padding: 0 12px;
}

@media (max-width: 1100px) {
  .search-wrap {
    width: 170px;
  }
}

@media (max-width: 991px) {
  .main-nav,
  .header-actions .search-wrap,
  .header-actions .btn-white-header {
    display: none;
  }
  .menu-toggle {
    display: inline-block;
  }
}

/* Section generic */
.section {
  position: relative;
  padding: 96px 0;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 42px;
  gap: 20px;
}

.section-head h2 {
  font-size: 30px;
  line-height: 1.35;
  font-weight: 700;
  color: var(--text-primary);
  position: relative;
}

.section-head h2 .head-mark {
  color: var(--accent);
  margin-right: 6px;
}

.section-sub {
  margin-top: 6px;
  font-size: 15px;
  color: var(--text-muted);
}

.link-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-secondary);
  font-size: 15px;
  font-weight: 500;
  transition: var(--transition);
  flex-shrink: 0;
}

.link-more:hover {
  color: var(--accent);
}

.link-more .arrow {
  transition: transform 0.25s ease;
}

.link-more:hover .arrow {
  transform: translateX(3px);
}

@media (max-width: 768px) {
  .section {
    padding: 68px 0;
  }
  .section-head {
    flex-direction: column;
    align-items: flex-start;
    margin-bottom: 30px;
    gap: 8px;
  }
  .section-head h2 {
    font-size: 24px;
  }
}

/* Hero */
.hero {
  min-height: 92vh;
  height: 860px;
  max-height: 1080px;
  position: relative;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: linear-gradient(120deg, #0B1120 0%, #10192F 50%, #0F1F3A 100%);
}

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

.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(11, 17, 32, 0.96) 0%, rgba(11, 17, 32, 0.86) 36%, rgba(11, 17, 32, 0.55) 70%, rgba(11, 17, 32, 0.4) 100%);
}

.hero-glow {
  position: absolute;
  width: 520px;
  height: 520px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.2), transparent 62%);
  left: 35%;
  top: -80px;
  pointer-events: none;
  z-index: 1;
}

.hero-bg-lowlight {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(34, 211, 238, 0.12), transparent 60%);
  z-index: 1;
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 48% 52%;
  align-items: center;
  gap: 30px;
  width: 100%;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.05);
  font-size: 13px;
  color: var(--text-primary);
  margin-bottom: 22px;
}

.hero-badge .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent);
}

.hero h1 {
  font-size: 48px;
  line-height: 1.24;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.5px;
  margin-bottom: 20px;
}

.hero-subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 12px;
  font-weight: 500;
}

.hero-desc {
  font-size: 15px;
  color: var(--text-muted);
  max-width: 520px;
  margin-bottom: 34px;
  line-height: 1.8;
}

.hero-ctas {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
  font-size: 13px;
  color: var(--text-secondary);
}

.hero-point {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.hero-point i {
  color: var(--accent);
  font-style: normal;
  font-weight: 700;
}

/* hero phone */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  min-height: 620px;
}

.phone-frame {
  width: 280px;
  height: 600px;
  border-radius: 38px;
  padding: 12px;
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(8px);
  box-shadow: 0 20px 70px rgba(0, 0, 0, 0.42), 0 0 60px rgba(44, 229, 216, 0.1);
  position: relative;
}

.phone-frame::before {
  content: "";
  position: absolute;
  top: 18px;
  left: 50%;
  transform: translateX(-50%);
  width: 90px;
  height: 22px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-full);
  z-index: 3;
}

.phone-screen {
  width: 100%;
  height: 100%;
  border-radius: 28px;
  overflow: hidden;
  position: relative;
  background: #080D18;
}

.phone-screen img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.phone-screen::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(8, 13, 24, 0) 60%, rgba(8, 13, 24, 0.8) 100%);
}

.phone-float-card {
  position: absolute;
  left: -50px;
  top: 120px;
  background: rgba(13, 20, 36, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(14px);
  border-radius: 16px;
  padding: 14px 18px;
  box-shadow: var(--shadow-card);
  animation: floatItem 3s ease-in-out infinite;
  z-index: 5;
}

.phone-float-card .float-title {
  font-size: 13px;
  font-weight: 600;
  color: #E6EDF7;
  margin-bottom: 4px;
}

.phone-float-card .float-sub {
  font-size: 12px;
  color: var(--accent);
}

.phone-float-card.green-glow {
  border-color: rgba(44, 229, 216, 0.3);
}

@keyframes floatItem {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-12px);
  }
}

@media (max-width: 1024px) {
  .hero {
    height: auto;
    min-height: auto;
    padding: 64px 0;
  }
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 50px;
  }
  .hero-visual {
    justify-content: center;
    min-height: auto;
  }
  .phone-float-card {
    left: 10px;
  }
  .hero h1 {
    font-size: 40px;
  }
}

@media (max-width: 600px) {
  .hero {
    padding: 48px 0 60px;
  }
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .hero h1 {
    font-size: 32px;
  }
  .hero-subtitle {
    font-size: 16px;
  }
  .phone-frame {
    width: 240px;
    height: 510px;
  }
  .phone-float-card {
    left: -8px;
    top: 90px;
    padding: 10px 14px;
  }
}

/* Section clips */
.clips-section {
  background: #0F1729;
  background-image: radial-gradient(ellipse at 85% 20%, rgba(99, 102, 241, 0.08), transparent 55%);
}

.clip-grid {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 24px;
}

.clip-main {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  min-height: 560px;
  display: block;
  background: #101B35;
}

.clip-main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  inset: 0;
}

.clip-main .cover-mask {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(8, 13, 24, 0.05) 20%, rgba(8, 13, 24, 0.65) 75%, rgba(8, 13, 24, 0.92) 100%);
  z-index: 1;
}

.clip-main .clip-info {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 28px;
  z-index: 2;
}

.clip-main .clip-title {
  font-size: 22px;
  font-weight: 700;
  color: #fff;
  line-height: 1.4;
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.clip-duration {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(0, 0, 0, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: #fff;
  font-size: 12px;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  margin-bottom: 12px;
}

.play-icon {
  display: inline-flex;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(44, 229, 216, 0.9);
  align-items: center;
  justify-content: center;
  margin-right: 8px;
  box-shadow: 0 0 18px rgba(44, 229, 216, 0.4);
  position: relative;
}

.play-icon::after {
  content: "";
  border-style: solid;
  border-width: 7px 0 7px 11px;
  border-color: transparent transparent transparent #06251F;
  margin-left: 3px;
}

.clip-side {
  display: grid;
  grid-template-rows: 1fr 1fr;
  gap: 24px;
}

.clip-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #101B35;
  display: block;
  min-height: 220px;
}

.clip-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.clip-card .cover-mask {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(8, 13, 24, 0.75) 0%, transparent 40%), linear-gradient(0deg, rgba(8, 13, 24, 0.6) 0%, transparent 60%);
  z-index: 1;
}

.clip-card .clip-card-info {
  position: absolute;
  bottom: 0;
  z-index: 2;
  padding: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  left: 0;
  right: 0;
}

.clip-card .clip-card-title {
  font-size: 16px;
  line-height: 1.4;
  color: #fff;
  font-weight: 600;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}

.clip-card .meta {
  font-size: 12px;
  color: rgba(230, 237, 247, 0.8);
}

@media (max-width: 991px) {
  .clip-grid {
    grid-template-columns: 1fr;
  }
  .clip-main {
    min-height: 400px;
  }
  .clip-side {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: none;
  }
  .clip-card {
    min-height: 200px;
  }
}

@media (max-width: 600px) {
  .clip-side {
    grid-template-columns: 1fr;
  }
  .clip-main {
    min-height: 360px;
  }
}

/* Section favorites (种草清单) */
.fav-section {
  background: var(--bg-main);
  background-image: linear-gradient(100deg, transparent 0%, transparent 70%, rgba(129, 140, 248, 0.05) 100%);
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.fav-list {
  max-width: 900px;
}

.fav-item {
  display: grid;
  grid-template-columns: 56px 82px 1fr auto;
  gap: 18px;
  align-items: center;
  padding: 18px 10px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 6px;
  transition: var(--transition);
  cursor: default;
}

.fav-item:hover {
  background: rgba(255, 255, 255, 0.045);
  transform: translateX(4px);
  border-color: transparent;
}

.fav-index {
  font-size: 24px;
  font-weight: 800;
  color: rgba(255, 255, 255, 0.12);
  font-style: italic;
  text-align: center;
  line-height: 1;
}

.fav-item:hover .fav-index {
  color: rgba(44, 229, 216, 0.55);
}

.fav-thumb {
  width: 78px;
  height: 64px;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #101B35;
  position: relative;
}

.fav-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.fav-body .fav-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.fav-body .fav-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.5;
}

.fav-meta {
  display: flex;
  align-items: center;
  gap: 10px;
}

.fav-rate {
  font-size: 13px;
  color: var(--amber);
  font-weight: 600;
  white-space: nowrap;
}

.fav-go {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 0 16px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--text-primary);
  font-size: 13px;
  transition: var(--transition);
  white-space: nowrap;
}

.fav-go:hover {
  background: rgba(44, 229, 216, 0.14);
  border-color: rgba(44, 229, 216, 0.4);
  color: #2CE5D8;
}

@media (max-width: 768px) {
  .fav-item {
    grid-template-columns: 30px 72px 1fr;
    gap: 12px;
    padding: 18px 4px;
  }
  .fav-thumb {
    width: 66px;
    height: 56px;
  }
  .fav-meta {
    grid-column: 3 / 4;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: -6px;
  }
  .fav-meta .tag,
  .fav-rate {
    font-size: 12px;
  }
  .fav-go {
    display: none;
  }
}

/* Review section */
.review-section {
  background: #0D1526;
  overflow: hidden;
  padding: 80px 0;
}

.review-track {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.18) transparent;
  padding: 8px 4px 22px;
}

.review-track::-webkit-scrollbar {
  height: 6px;
}

.review-track::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 6px;
}

.review-card {
  flex: 0 0 340px;
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(8px);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}

.review-card:hover {
  background: rgba(255, 255, 255, 0.075);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-3px);
}

.review-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.review-user-icon {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(44, 229, 216, 0.25), rgba(129, 140, 248, 0.35));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: #E6EDF7;
  font-size: 15px;
}

.review-user-name {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
}

.review-user-source {
  font-size: 12px;
  color: var(--text-muted);
}

.review-text {
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-secondary);
  flex: 1;
}

.review-foot {
  margin-top: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-muted);
}

.review-link {
  color: var(--accent);
  font-weight: 500;
}

.scroll-tip {
  margin-top: 8px;
  font-size: 12px;
  color: var(--text-muted);
  text-align: right;
}

@media (max-width: 520px) {
  .review-card {
    flex-basis: 85%;
  }
}

/* News CMS Section */
.news-section {
  background: var(--bg-main);
}

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

.news-feature-item {
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: #111B30;
  border: 1px solid rgba(255, 255, 255, 0.07);
  display: flex;
  flex-direction: column;
  min-height: 420px;
  transition: var(--transition);
}

.news-feature-item:hover {
  border-color: rgba(44, 229, 216, 0.25);
  transform: translateY(-4px);
}

.news-feature-pic {
  position: relative;
  height: 240px;
  overflow: hidden;
  background: #0E1829;
}

.news-feature-pic img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}

.news-feature-item:hover .news-feature-pic img {
  transform: scale(1.04);
}

.news-feature-pic-mask {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(8, 13, 24, 0.85) 100%);
}

.news-feature-cat {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 2;
}

.news-feature-content {
  padding: 24px 26px 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.news-feature-title {
  font-size: 21px;
  font-weight: 700;
  line-height: 1.45;
  color: #fff;
  margin-bottom: 12px;
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
}

.news-feature-desc {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.75;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 18px;
  flex: 1;
}

.news-feature-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 13px;
  color: var(--text-muted);
}

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

.news-list-item {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 20px;
  padding: 22px 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  transition: var(--transition);
  cursor: default;
}

.news-list-item:hover {
  padding-left: 14px;
  padding-right: 4px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-md);
}

.news-list-thumb {
  width: 120px;
  height: 80px;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #0E1829;
  flex-shrink: 0;
}

.news-list-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.news-list-content {
  min-width: 0;
}

.news-list-top {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
  flex-wrap: wrap;
}

.news-list-title {
  font-size: 16px;
  font-weight: 600;
  color: #E6EDF7;
  line-height: 1.5;
  display: block;
  margin-bottom: 4px;
  transition: color 0.2s;
}

a.news-list-title:hover {
  color: var(--accent);
}

.news-list-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 8px;
}

.news-list-date {
  font-size: 12px;
  color: #5D6B8C;
}

.news-empty {
  border-radius: var(--radius-xl);
  border: 1px dashed rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.03);
  padding: 60px 20px;
  text-align: center;
  color: var(--text-muted);
}

@media (max-width: 900px) {
  .news-layout {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .news-feature-item {
    min-height: auto;
  }
}

@media (max-width: 520px) {
  .news-list-item {
    grid-template-columns: 96px 1fr;
    gap: 14px;
  }
  .news-list-thumb {
    width: 96px;
    height: 76px;
  }
  .news-list-desc {
    display: none;
  }
}

/* Download CTA section */
.download-section {
  padding: 100px 0;
  position: relative;
  background: linear-gradient(130deg, #0B1120 0%, #0D1B35 100%);
  overflow: hidden;
}

.download-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center;
  opacity: 0.2;
}

.download-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 75% 40%, rgba(44, 229, 216, 0.14), transparent 60%), linear-gradient(90deg, #0B1120 0%, rgba(11, 17, 32, 0.88) 100%);
}

.download-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 56px;
  align-items: center;
  background: rgba(15, 23, 44, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(12px);
  border-radius: 28px;
  padding: 56px;
}

.download-title {
  font-size: 32px;
  font-weight: 800;
  color: #fff;
  line-height: 1.3;
  margin-bottom: 18px;
}

.download-desc {
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-secondary);
  margin-bottom: 34px;
  max-width: 560px;
}

.download-btns {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.download-side {
  text-align: center;
}

.download-code-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-xl);
  padding: 28px;
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 320px;
  margin: 0 auto;
}

.download-code-card img {
  width: 180px;
  height: 180px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  margin-bottom: 16px;
  background: #101B35;
}

.download-code-card p {
  font-size: 14px;
  color: var(--text-secondary);
}

@media (max-width: 900px) {
  .download-inner {
    grid-template-columns: 1fr;
    padding: 34px 28px;
  }
  .download-title {
    font-size: 26px;
  }
}

/* FAQ section */
.faq-section {
  background: #0D1526;
}

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

.faq-item {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  margin-bottom: 16px;
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.055);
}

.faq-q {
  width: 100%;
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: 17px;
  font-weight: 600;
  padding: 22px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  cursor: pointer;
  text-align: left;
  line-height: 1.5;
}

.faq-q .faq-arrow {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: var(--transition);
}

.faq-q .faq-arrow svg {
  width: 12px;
  height: 12px;
  fill: none;
  stroke: #9AA8BE;
  stroke-width: 2;
  stroke-linecap: round;
}

.faq-item.open .faq-q .faq-arrow {
  transform: rotate(180deg);
  background: rgba(44, 229, 216, 0.2);
}

.faq-item.open .faq-q .faq-arrow svg {
  stroke: #2CE5D8;
}

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-a-inner {
  padding: 0 24px 24px;
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.85;
  border-top: 1px solid transparent;
}

.faq-item.open .faq-a-inner {
  border-top-color: rgba(255, 255, 255, 0.08);
  padding-top: 18px;
}

@media (max-width: 600px) {
  .faq-q {
    font-size: 15px;
    padding: 18px 16px 16px;
  }
  .faq-a-inner {
    padding: 0 16px 18px;
  }
  .faq-item.open .faq-a-inner {
    padding-top: 14px;
  }
}

/* Footer */
.site-footer {
  background: #080D18;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding: 70px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-brand .footer-logo {
  font-size: 22px;
  font-weight: 800;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 14px;
  color: var(--text-secondary);
  max-width: 380px;
  line-height: 1.8;
}

.footer-col-title {
  font-size: 15px;
  font-weight: 700;
  color: #E6EDF7;
  margin-bottom: 18px;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul a {
  font-size: 14px;
  color: var(--text-secondary);
  transition: color 0.2s;
}

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

.footer-bottom {
  padding-top: 26px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 13px;
  color: #64748B;
}

.footer-bottom .footer-secure {
  display: flex;
  gap: 16px;
  align-items: center;
  flex-wrap: wrap;
}

@media (max-width: 900px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 600px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* Mobile sticky bottom bar */
.mobile-bottom-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
  z-index: 300;
  border-top: 1px solid #E2E8F0;
  padding: 8px clamp(12px, 4vw, 24px);
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.08);
}

.mobile-bar-inner {
  display: flex;
  align-items: center;
  justify-content: space-around;
}

.mobile-bar-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  font-size: 12px;
  color: #334155;
  gap: 3px;
  padding: 4px 8px;
  white-space: nowrap;
}

.mobile-bar-btn.active {
  color: #0E7C74;
}

.mobile-bar-btn .bar-icon {
  width: 18px;
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.mobile-bar-btn svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

@media (max-width: 768px) {
  body {
    padding-bottom: 54px;
  }
  .mobile-bottom-bar {
    display: block;
  }
}

/* roulang page: article */
:root{
  --bg:#0B1120;
  --bg-soft:#0F1729;
  --panel:rgba(12,19,36,.82);
  --glass:rgba(255,255,255,.055);
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --text:#E6EDF7;
  --text-2:#9AA8BE;
  --text-3:#6B7B98;
  --brand:#2CE5D8;
  --brand-2:#22D3EE;
  --purple:#818CF8;
  --amber:#F5B04A;
  --success:#34D399;
  --error:#FB7185;
  --warning:#FBBF24;
  --radius:16px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow:0 8px 30px rgba(0,0,0,.28);
  --glow:0 8px 30px rgba(34,211,238,.16),0 0 0 1px rgba(44,229,216,.22);
  --header-h:72px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:
    radial-gradient(1200px 600px at 85% -10%,rgba(99,102,241,.14),transparent 60%),
    radial-gradient(900px 500px at -10% 30%,rgba(34,211,238,.08),transparent 55%),
    var(--bg);
  color:var(--text);
  line-height:1.72;
  min-height:100vh;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,textarea{font:inherit}
ul,ol{padding-left:0;margin:0}
p{margin:0}
h1,h2,h3,h4,h5,h6{
  font-weight:700;
  line-height:1.3;
  margin:0;
  color:var(--text);
  text-wrap:balance;
}
a:focus-visible,
button:focus-visible,
input:focus-visible{
  outline:2px solid var(--brand-2);
  outline-offset:3px;
  border-radius:6px;
}
.container{
  max-width:1280px;
  margin:0 auto;
  padding:0 40px;
}
/* 顶部通栏导航 */
.top-header{
  position:sticky;
  top:0;
  z-index:120;
  background:#fff;
  border-bottom:1px solid #e9edf3;
  box-shadow:0 4px 16px rgba(15,23,42,.04);
}
.header-inner{
  height:var(--header-h);
  max-width:1280px;
  margin:0 auto;
  padding:0 32px;
  display:flex;
  align-items:center;
  gap:22px;
}
.brand{
  display:flex;
  align-items:center;
  gap:11px;
  flex-shrink:0;
  min-width:0;
}
.brand-icon{
  width:38px;
  height:38px;
  border-radius:11px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:linear-gradient(135deg,#10B981,#0EA5E9);
  box-shadow:0 6px 14px rgba(14,165,233,.26);
  flex:none;
}
.brand-icon svg{width:20px;height:20px;fill:#062822}
.brand-text{
  font-size:19px;
  font-weight:800;
  color:#0B1730;
  letter-spacing:-.2px;
  white-space:nowrap;
}
.brand-text b{color:#0891B2;font-weight:800}
.main-nav{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:10px;
}
.nav-link{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:38px;
  padding:0 15px;
  border-radius:999px;
  font-size:14.5px;
  font-weight:600;
  color:#26304B;
  transition:all .22s ease;
  white-space:nowrap;
}
.nav-link:hover{color:#0E8A83;background:#EDFBF8}
.nav-link.active{
  color:#075E59;
  background:#E4F8F5;
  box-shadow:inset 0 0 0 1px rgba(44,229,216,.45),0 2px 8px rgba(44,229,216,.12);
}
.header-actions{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:12px;
}
.searchbox{
  width:220px;
  height:40px;
  background:#F2F5F9;
  border:1px solid #E5E9F0;
  border-radius:999px;
  display:flex;
  align-items:center;
  gap:8px;
  padding:0 6px 0 14px;
  transition:border-color .2s,background .2s,box-shadow .2s;
}
.searchbox:focus-within{
  background:#fff;
  border-color:#5EEAD4;
  box-shadow:0 0 0 4px rgba(44,229,216,.14);
}
.searchbox svg{width:16px;height:16px;fill:#8B9BB8;flex:none}
.searchbox input{
  width:100%;
  height:100%;
  border:0;
  outline:0;
  background:transparent;
  font-size:13.5px;
  color:#0B1730;
}
.searchbox input::placeholder{color:#9AA8BE}
.header-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:40px;
  padding:0 20px;
  border:0;
  border-radius:999px;
  background:linear-gradient(135deg,#14B8A6,#0EA5E9);
  color:#fff;
  font-size:14px;
  font-weight:700;
  white-space:nowrap;
  cursor:pointer;
  box-shadow:0 6px 18px rgba(14,165,233,.26);
  transition:transform .2s,box-shadow .2s,filter .2s;
}
.header-btn:hover{box-shadow:0 10px 24px rgba(14,165,233,.36);transform:translateY(-1px)}
.header-btn:active{transform:translateY(0);filter:brightness(.96)}
.menu-toggle{
  display:none;
  width:42px;
  height:42px;
  border:1px solid #E7EBF2;
  background:#fff;
  border-radius:12px;
  align-items:center;
  justify-content:center;
  cursor:pointer;
}
.menu-toggle svg{width:20px;height:20px;fill:#11223E}
/* 文章页 */
.article-page{
  padding:46px 0 110px;
  background:
    linear-gradient(180deg,rgba(11,17,32,.55),rgba(11,17,32,.95) 320px),
    url('/assets/images/backpic/back-2.webp') center top / cover no-repeat;
}
.breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:7px;
  font-size:13.5px;
  color:var(--text-3);
  margin-bottom:18px;
}
.breadcrumb a{color:var(--text-2);transition:.2s}
.breadcrumb a:hover{color:var(--brand)}
.crumb-current{
  display:inline-block;
  max-width:360px;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
  color:#C9D4E6;
}
.article-inner{
  max-width:1120px;
  margin:0 auto;
  display:grid;
  grid-template-columns:minmax(0,860px) 300px;
  gap:32px;
}
.article-main{
  min-width:0;
  min-height:420px;
  background:rgba(16,23,43,.62);
  border:1px solid var(--line);
  border-radius:24px;
  padding:42px 46px 40px;
  backdrop-filter:blur(6px);
  box-shadow:var(--shadow);
}
.article-header{
  padding-bottom:28px;
  border-bottom:1px solid rgba(255,255,255,.09);
  margin-bottom:26px;
}
.article-kicker{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:14px;
  flex-wrap:wrap;
}
.chip{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:999px;
  background:rgba(44,229,216,.10);
  border:1px solid rgba(44,229,216,.28);
  color:#7DE7DE;
  font-size:12px;
  font-weight:600;
  letter-spacing:.3px;
}
.chip-official{
  background:rgba(129,140,248,.10);
  border-color:rgba(129,140,248,.28);
  color:#B9C2FF;
}
.article-title{
  font-size:clamp(26px,3vw,37px);
  font-weight:800;
  line-height:1.38;
  letter-spacing:-.3px;
  color:#F1F5FB;
  margin-bottom:18px;
}
.article-meta{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:10px 22px;
  color:var(--text-3);
  font-size:13px;
}
.meta-item{display:inline-flex;align-items:center;gap:7px}
.meta-item svg{width:15px;height:15px;fill:currentColor}
.meta-item a{color:#9DABBF;transition:.2s}
.meta-item a:hover{color:var(--brand)}
.article-body{
  color:#C6D0E2;
  font-size:16px;
  line-height:1.86;
  word-break:break-word;
}
.article-body h1{
  font-size:26px;
  margin:32px 0 14px;
  border-left:4px solid var(--brand);
  padding-left:15px;
  line-height:1.4;
}
.article-body h2{
  font-size:25px;
  margin:42px 0 14px;
  color:#EAF0F8;
  line-height:1.4;
  padding-left:0;
}
.article-body h3{
  font-size:20px;
  margin:32px 0 10px;
  color:#DCE6F2;
}
.article-body h4{
  font-size:17px;
  margin:26px 0 8px;
  color:#DCE6F2;
}
.article-body p{
  margin:1.25em 0;
  color:var(--text-2);
}
.article-body a{
  color:var(--brand);
  text-decoration:underline;
  text-underline-offset:3px;
  transition:.2s;
}
.article-body a:hover{color:#9CF5EC}
.article-body ul,.article-body ol{
  margin:1.3em 0;
  padding-left:1.4em;
}
.article-body ul li,.article-body ol li{
  margin:.55em 0;
  color:var(--text-2);
}
.article-body ul li::marker{color:var(--brand)}
.article-body ol li::marker{color:var(--brand-2);font-weight:700}
.article-body strong{color:#E8EEF7;font-weight:700}
.article-body em{color:#DDE6F2}
.article-body blockquote{
  margin:1.6em 0;
  padding:16px 20px;
  background:rgba(129,140,248,.08);
  border-left:3px solid var(--purple);
  border-radius:10px;
  color:#BAC4D8;
}
.article-body blockquote p{margin:0}
.article-body code{
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.1);
  border-radius:6px;
  padding:2px 7px;
  font-size:.92em;
  color:#BBF3ED;
}
.article-body pre{
  background:rgba(2,6,17,.72);
  border:1px solid var(--line);
  border-radius:16px;
  padding:20px;
  overflow-x:auto;
  margin:1.4em 0;
}
.article-body pre code{
  background:transparent;
  border:0;
  padding:0;
  color:#B7F0E8;
}
.article-body img{
  border-radius:14px;
  height:auto;
  margin:1.6em auto;
}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:1.5em 0;
  font-size:14.5px;
}
.article-body th,.article-body td{
  border:1px solid rgba(255,255,255,.13);
  padding:10px 13px;
  text-align:left;
}
.article-body th{
  background:rgba(255,255,255,.055);
  color:#E5ECF6;
  font-weight:600;
}
.article-body hr{
  border:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.13),transparent);
  margin:32px 0;
}
.article-tags{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:10px;
  margin-top:34px;
  padding-top:24px;
  border-top:1px solid rgba(255,255,255,.08);
}
.tag-label{
  color:var(--text-3);
  font-size:13px;
  display:inline-flex;
  align-items:center;
  gap:8px;
}
.tag-label svg{width:15px;height:15px;fill:currentColor}
.article-pager{
  display:flex;
  align-items:stretch;
  justify-content:space-between;
  gap:14px;
  margin-top:28px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.08);
}
.pager-item{
  flex:1;
  min-width:0;
  display:inline-flex;
  align-items:center;
  gap:10px;
  background:rgba(255,255,255,.035);
  border:1px solid rgba(255,255,255,.10);
  border-radius:14px;
  padding:12px 15px;
  font-size:14px;
  font-weight:600;
  color:#D6DFEA;
  transition:.2s;
}
.pager-item:hover{
  border-color:rgba(44,229,216,.4);
  color:var(--brand);
  background:rgba(44,229,216,.06);
  transform:translateY(-2px);
}
.pager-item.next{justify-content:flex-end}
.pager-back{
  display:inline-flex;
  align-items:center;
  gap:8px;
  white-space:nowrap;
  padding:12px 20px;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  border-radius:14px;
  color:#C6D2E2;
  font-size:14px;
  font-weight:600;
  transition:.2s;
}
.pager-back:hover{
  color:var(--brand);
  border-color:rgba(44,229,216,.45);
}
.empty-state{
  min-height:380px;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  text-align:center;
  padding:48px 20px;
}
.empty-icon{
  width:78px;
  height:78px;
  border-radius:24px;
  background:rgba(44,229,216,.08);
  border:1px solid rgba(44,229,216,.2);
  display:flex;
  align-items:center;
  justify-content:center;
  margin-bottom:20px;
}
.empty-icon svg{width:34px;height:34px;fill:var(--brand)}
.empty-state h2{font-size:24px;margin-bottom:10px}
.empty-state p{color:var(--text-3);margin-bottom:20px}
.empty-actions{display:flex;gap:12px;flex-wrap:wrap;justify-content:center}
/* 侧栏 */
.article-aside{
  min-width:0;
}
.side-card{
  position:sticky;
  top:calc(var(--header-h) + 24px);
  display:flex;
  flex-direction:column;
  gap:22px;
}
.side-panel{
  background:rgba(14,21,38,.72);
  border:1px solid var(--line);
  border-radius:20px;
  padding:24px;
}
.side-eyebrow{
  font-size:12px;
  font-weight:700;
  color:var(--brand);
  letter-spacing:.8px;
  margin-bottom:8px;
}
.side-title{
  font-size:18px;
  font-weight:800;
  color:#E9EFF8;
  margin-bottom:6px;
}
.side-desc{
  font-size:13px;
  color:var(--text-3);
  line-height:1.65;
  margin-bottom:18px;
}
.side-list{list-style:none;display:flex;flex-direction:column}
.side-list li + li{border-top:1px solid rgba(255,255,255,.065)}
.side-list a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:12px 2px;
  font-size:14px;
  font-weight:600;
  color:#C2CDDD;
  transition:.2s;
}
.side-list a:hover{color:var(--brand)}
.side-list .arrow{color:var(--text-3);transition:transform .2s}
.side-list a:hover .arrow{transform:translateX(4px);color:var(--brand)}
.side-promo{
  position:relative;
  overflow:hidden;
  border-radius:20px;
  padding:24px;
  min-height:172px;
  display:flex;
  flex-direction:column;
  justify-content:flex-end;
  border:1px solid rgba(255,255,255,.14);
}
.side-promo::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    linear-gradient(180deg,rgba(11,17,32,.1),rgba(4,8,18,.92)),
    url('/assets/images/coverpic/cover-3.png') center/cover;
  z-index:-1;
}
.side-promo strong{
  color:#fff;
  font-size:17px;
  line-height:1.4;
  margin-bottom:10px;
}
.side-promo a{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:100%;
  height:38px;
  border-radius:999px;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#04332F;
  font-size:13.5px;
  font-weight:800;
  box-shadow:0 6px 18px rgba(34,211,238,.22);
  transition:.2s;
}
.side-promo a:hover{
  box-shadow:0 8px 26px rgba(34,211,238,.36);
  transform:translateY(-1px);
}
/* 相关板块 */
.related-section{
  max-width:1120px;
  margin:56px auto 0;
}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:24px;
}
.section-head h2{
  font-size:25px;
  color:#EAF0F8;
  position:relative;
  padding-bottom:12px;
}
.section-head h2::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  width:44px;
  height:3px;
  border-radius:3px;
  background:linear-gradient(90deg,var(--brand),var(--brand-2));
}
.section-head p{
  font-size:13px;
  color:var(--text-3);
}
.related-grid{
  display:grid;
  grid-template-columns:1.2fr 1fr 1fr;
  gap:18px;
}
.rel-card{
  position:relative;
  display:flex;
  flex-direction:column;
  gap:14px;
  background:rgba(15,23,43,.6);
  border:1px solid var(--line);
  border-radius:20px;
  padding:16px;
  transition:transform .24s,border-color .24s,background .24s;
  overflow:hidden;
}
.rel-card:hover{
  transform:translateY(-4px);
  border-color:rgba(44,229,216,.34);
  background:rgba(21,31,55,.7);
}
.rel-thumb{
  position:relative;
  border-radius:14px;
  overflow:hidden;
  aspect-ratio:16/8;
  background:rgba(255,255,255,.03);
}
.rel-thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.rel-card:hover .rel-thumb img{transform:scale(1.04)}
.rel-thumb::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,transparent 45%,rgba(5,9,18,.42));
}
.rel-badge{
  position:absolute;
  left:12px;
  top:12px;
  z-index:2;
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 11px;
  background:rgba(4,10,22,.68);
  backdrop-filter:blur(6px);
  color:#B6F5EE;
  border:1px solid rgba(44,229,216,.35);
  border-radius:999px;
  font-size:11.5px;
  font-weight:600;
}
.rel-content{flex:1;display:flex;flex-direction:column;gap:8px}
.rel-content h3{
  font-size:16.5px;
  line-height:1.5;
  color:#E5ECF6;
}
.rel-content p{
  font-size:13px;
  color:var(--text-3);
  line-height:1.7;
  flex:1;
}
.rel-more{
  display:inline-flex;
  align-items:center;
  gap:7px;
  font-size:13.5px;
  font-weight:600;
  color:var(--brand);
}
.rel-more svg{width:15px;height:15px;fill:currentColor;transition:transform .2s}
.rel-card:hover .rel-more svg{transform:translateX(4px)}
/* 页脚 */
.site-footer{
  background:rgba(4,9,19,.92);
  border-top:1px solid rgba(255,255,255,.06);
  padding:58px 0 28px;
  color:#8fa1bb;
  font-size:14px;
}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1fr;
  gap:36px;
  padding-bottom:32px;
}
.footer-brand{max-width:360px}
.footer-logo{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:19px;
  font-weight:800;
  color:#E6EEF7;
  margin-bottom:14px;
}
.footer-logo .brand-icon{
  width:34px;
  height:34px;
  border-radius:9px;
}
.footer-brand p{
  color:#7184a1;
  line-height:1.85;
  margin:0;
}
.footer-col-title{
  font-size:15px;
  font-weight:700;
  color:#D7E0ED;
  margin-bottom:18px;
}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:11px}
.footer-col ul a{color:#7d92ad;transition:.2s}
.footer-col ul a:hover{color:#5EE4D8}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  padding-top:24px;
  border-top:1px solid rgba(255,255,255,.06);
  color:#5b6d88;
  font-size:12.5px;
  flex-wrap:wrap;
}
.footer-secure{
  display:inline-flex;
  align-items:center;
  gap:14px;
  flex-wrap:wrap;
}
.footer-secure span{
  display:inline-flex;
  align-items:center;
  gap:6px;
}
/* 底部移动端 Dock */
.bottom-dock{
  display:none;
}
/* 响应式 */
@media (max-width:1100px){
  .article-inner{
    grid-template-columns:minmax(0,1fr);
    max-width:860px;
  }
  .side-card{position:static;flex-direction:row;flex-wrap:wrap}
  .side-panel{flex:1;min-width:240px}
  .side-promo{min-width:240px;flex:1}
  .related-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:1023px){
  .header-inner{gap:12px}
  .menu-toggle{
    display:inline-flex;
    align-items:center;
    justify-content:center;
  }
  .header-actions .searchbox{display:none}
  .main-nav{
    position:fixed;
    top:var(--header-h);
    left:0;
    right:0;
    background:#fff;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    padding:18px 32px 28px;
    margin-left:0;
    box-shadow:0 20px 40px rgba(10,20,45,.18);
    transform:translateX(-100%);
    transition:transform .28s ease;
    height:calc(100vh - var(--header-h));
    overflow-y:auto;
    z-index:130;
  }
  body.nav-open .main-nav{transform:translateX(0)}
  .main-nav .nav-link{
    justify-content:flex-start;
    height:46px;
    padding:0 16px;
    border-radius:12px;
  }
}
@media (max-width:768px){
  .header-inner{padding:0 18px}
  .header-btn{padding:0 15px}
  .header-btn span{max-width:5em;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .article-page{padding:30px 0 90px}
  .container{padding:0 18px}
  .article-main{padding:26px 20px 30px;border-radius:18px}
  .article-inner{gap:22px}
  .article-title{font-size:24px}
  .related-grid{grid-template-columns:1fr}
  .section-head{flex-direction:column;align-items:flex-start;gap:4px}
  .article-pager{flex-direction:column}
  .pager-back{justify-content:center}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px 20px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .bottom-dock{
    position:fixed;
    left:0;
    right:0;
    bottom:0;
    z-index:100;
    display:flex;
    background:rgba(9,16,32,.96);
    backdrop-filter:blur(18px);
    border-top:1px solid rgba(255,255,255,.1);
    visibility:visible;
    transition:transform .3s ease,opacity .3s ease;
  }
  .bottom-dock a{
    flex:1;
    display:flex;
    flex-direction:column;
    align-items:center;
    gap:3px;
    padding:9px 4px 11px;
    font-size:11.5px;
    color:#AFC0D6;
  }
  .bottom-dock a svg{width:20px;height:20px;fill:currentColor}
  .bottom-dock a .dock-label{font-size:11px;font-weight:600}
  .bottom-dock a.active{color:var(--brand)}
  .bottom-dock.dock-hidden{
    transform:translateY(110%);
    opacity:0;
    visibility:hidden;
  }
  body{padding-bottom:58px}
}
@media (max-width:520px){
  .brand-text{font-size:16.5px}
  .brand-icon{width:34px;height:34px;border-radius:10px}
  .header-btn{
    width:42px;
    padding:0;
    font-size:0;
  }
  .header-btn::before{
    content:"下载";
    font-size:13px;
    font-weight:700;
  }
}

/* roulang page: category1 */
:root {
    --brand: #2CE5D8;
    --brand-2: #22D3EE;
    --violet: #818CF8;
    --amber: #F5B04A;
    --bg: #0B1120;
    --bg-2: #0F1729;
    --surface: #111B30;
    --border: #24304A;
    --border-light: rgba(255, 255, 255, 0.1);
    --text: #E6EDF7;
    --muted: #9AA8BE;
    --dim: #6B7B98;
    --white-6: rgba(255, 255, 255, 0.06);
    --white-8: rgba(255, 255, 255, 0.08);
    --success: #34D399;
    --danger: #FB7185;
    --radius-sm: 12px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --shadow-soft: 0 8px 30px rgba(0, 0, 0, 0.25);
    --header-height: 68px;
    --container: 1280px;
  }

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

  html {
    scroll-behavior: smooth;
  }

  body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 16px;
    line-height: 1.75;
    overflow-x: hidden;
  }

  body.nav-open {
    overflow: hidden;
  }

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

  a {
    color: inherit;
    text-decoration: none;
    transition: color 0.25s, border-color 0.25s, background 0.25s;
  }

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

  button, input, textarea, select {
    font: inherit;
    border: 0;
    outline: none;
  }

  button {
    cursor: pointer;
  }

  .container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 32px;
  }

  .icon {
    width: 18px;
    height: 18px;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
    fill: none;
    flex-shrink: 0;
  }

  /* 按钮体系 */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 44px;
    padding: 10px 24px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 600;
    line-height: 1.2;
    white-space: nowrap;
    background: transparent;
    border: 1px solid transparent;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
  }

  .btn:hover {
    transform: translateY(-2px);
  }

  .btn:active {
    transform: translateY(1px);
    opacity: 0.88;
  }

  .btn:focus-visible,
  .search-input:focus-visible,
  .menu-toggle:focus-visible,
  a:focus-visible,
  button:focus-visible {
    outline: 2px solid var(--brand);
    outline-offset: 3px;
  }

  .btn-primary {
    background: linear-gradient(135deg, #2CE5D8 0%, #22D3EE 100%);
    color: #062A29;
    box-shadow: 0 6px 24px rgba(45, 212, 191, 0.32);
  }

  .btn-primary:hover {
    box-shadow: 0 10px 32px rgba(45, 212, 191, 0.45);
  }

  .btn-soft {
    background: rgba(255, 255, 255, 0.07);
    border-color: rgba(255, 255, 255, 0.16);
    color: #E6EDF7;
  }

  .btn-soft:hover {
    background: rgba(255, 255, 255, 0.13);
    border-color: rgba(255, 255, 255, 0.28);
    color: #fff;
  }

  .btn-arrow svg {
    transition: transform 0.22s ease;
  }

  .btn-arrow:hover svg,
  .text-link:hover svg {
    transform: translateX(3px);
  }

  .text-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--brand);
    font-weight: 600;
    font-size: 15px;
  }

  .text-link svg {
    transition: transform 0.2s ease;
  }

  /* 顶部导航 */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    height: var(--header-height);
    background: #FFFFFF;
    border-bottom: 1px solid #E7EBF3;
    box-shadow: 0 2px 16px rgba(15, 23, 42, 0.04);
  }

  .header-inner {
    max-width: var(--container);
    height: 100%;
    margin: 0 auto;
    padding: 0 32px;
    display: flex;
    align-items: center;
    gap: 24px;
  }

  .brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
    color: #0B1120;
  }

  .brand-icon {
    width: 36px;
    height: 36px;
    border-radius: 11px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #2CE5D8, #22D3EE);
    box-shadow: 0 0 20px rgba(34, 211, 238, 0.28);
    color: #062524;
    flex-shrink: 0;
  }

  .brand-icon svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
  }

  .brand-text {
    font-size: 20px;
    font-weight: 800;
    letter-spacing: -0.02em;
    white-space: nowrap;
  }

  .main-nav {
    display: flex;
    align-items: center;
    gap: 2px;
    margin-left: auto;
  }

  .nav-link {
    display: inline-flex;
    align-items: center;
    height: 40px;
    padding: 0 15px;
    border-radius: 999px;
    color: #334155;
    font-size: 15px;
    font-weight: 500;
    line-height: 1;
    transition: color 0.2s ease, background 0.2s ease;
  }

  .nav-link:hover {
    color: #0F766E;
    background: #EFFAF8;
  }

  .nav-link.active {
    color: #0F766E;
    font-weight: 700;
    background: #DEFAFA;
  }

  .header-tools {
    display: flex;
    align-items: center;
    gap: 10px;
  }

  .search-form {
    position: relative;
  }

  .search-form .search-icon {
    position: absolute;
    left: 13px;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    color: #64748B;
    pointer-events: none;
  }

  .search-input {
    width: 200px;
    height: 38px;
    border-radius: 999px;
    background: #F2F5F9;
    border: 1px solid transparent;
    padding: 0 16px 0 38px;
    font-size: 14px;
    color: #0B1120;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
  }

  .search-input::placeholder {
    color: #94A3B8;
  }

  .search-input:focus {
    background: #fff;
    border-color: var(--brand);
    box-shadow: 0 0 0 4px rgba(45, 212, 191, 0.12);
  }

  .header-cta {
    min-height: 38px;
    padding: 0 20px;
    font-size: 14px;
  }

  .menu-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border-radius: 12px;
    color: #0B1120;
    background: transparent;
    border: 1px solid #DFE5EE;
    transition: background 0.2s, border-color 0.2s;
  }

  .menu-toggle:hover, .menu-toggle.open {
    background: #F0FDF9;
    border-color: var(--brand);
  }

  .menu-toggle svg {
    width: 22px;
    height: 22px;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
  }

  .mobile-panel {
    display: none;
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: #fff;
    z-index: 99;
    padding: 18px 24px 26px;
    box-shadow: 0 24px 50px rgba(15, 23, 42, 0.14);
    border-bottom: 1px solid #E4E9F1;
  }

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

  .mobile-panel .mobile-nav-wrap {
    display: flex;
    flex-direction: column;
  }

  .mobile-panel .nav-link {
    display: flex;
    height: 46px;
    border-radius: 12px;
    font-size: 16px;
    color: #0B1120;
  }

  .mobile-panel .nav-link + .nav-link {
    margin-top: 2px;
  }

  .mobile-panel .nav-link.active {
    color: #0F766E;
    background: #DFF6F2;
  }

  .mobile-panel .btn-primary {
    width: 100%;
    margin-top: 16px;
  }

  .mobile-search-form {
    position: relative;
    margin-bottom: 12px;
    display: block;
  }

  .mobile-search-form .search-input {
    width: 100%;
    background: #F6F8FB;
  }

  /* Hero / 分类横幅 */
  .cat-hero {
    position: relative;
    isolation: isolate;
    min-height: 540px;
    display: flex;
    align-items: center;
    padding: 64px 0 56px;
    background: var(--bg);
  }

  .cat-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -1;
    background:
      radial-gradient(circle at 12% 16%, rgba(129, 140, 248, 0.16), transparent 32%),
      radial-gradient(circle at 80% 26%, rgba(45, 212, 191, 0.12), transparent 30%),
      linear-gradient(105deg, rgba(7, 11, 24, 0.96) 10%, rgba(11, 17, 32, 0.88) 64%, rgba(13, 20, 36, 0.7));
  }

  .cat-hero-bg {
    position: absolute;
    inset: 0;
    z-index: -2;
    background:
      url("/assets/images/backpic/back-1.webp") no-repeat center center / cover;
    opacity: 0.9;
  }

  .cat-hero::after {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -1;
    background: url("/assets/images/backpic/back-1.webp") no-repeat center center / cover;
    opacity: 0.18;
    mix-blend-mode: luminosity;
  }

  .cat-hero-content {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 290px;
    gap: 48px;
    align-items: center;
    width: 100%;
  }

  .breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 7px;
    margin-bottom: 18px;
    color: var(--muted);
    font-size: 14px;
  }

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

  .breadcrumb .current {
    color: var(--dim);
  }

  .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    margin-bottom: 14px;
    padding: 6px 14px;
    border-radius: 999px;
    border: 1px solid rgba(45, 212, 191, 0.42);
    background: rgba(45, 212, 191, 0.08);
    color: #A5F3FC;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.02em;
  }

  .eyebrow-dot {
    width: 6px;
    height: 6px;
    border-radius: 999px;
    background: var(--brand);
    box-shadow: 0 0 0 4px rgba(45, 212, 191, 0.16);
  }

  .cat-hero-title {
    font-size: clamp(42px, 6vw, 68px);
    font-weight: 900;
    line-height: 1.08;
    letter-spacing: -0.02em;
    margin: 6px 0 18px;
    color: #F8FBFF;
  }

  .cat-hero-title .sub-mark {
    display: block;
    font-size: 20px;
    font-weight: 700;
    color: var(--brand);
    margin-bottom: 6px;
  }

  .cat-hero-lead {
    max-width: 660px;
    color: #CBD5E1;
    font-size: 17px;
    line-height: 1.9;
    margin-bottom: 26px;
  }

  .hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-bottom: 26px;
  }

  .hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 18px;
    color: var(--muted);
    font-size: 14px;
  }

  .hero-tags span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
  }

  .hero-tags span::before {
    content: "";
    width: 5px;
    height: 5px;
    border-radius: 99px;
    background: var(--brand);
  }

  /* 右侧竖屏视觉 */
  .hero-screen {
    max-width: 250px;
    margin-left: auto;
    padding: 8px;
    border-radius: 28px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.14);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.35), 0 0 0 1px rgba(0, 0, 0, 0.16) inset;
    position: relative;
  }

  .hero-screen .screen-frame {
    position: relative;
    overflow: hidden;
    border-radius: 21px;
    aspect-ratio: 9 / 13;
    background: #0D1527;
  }

  .hero-screen img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  .screen-frame::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 44%, rgba(8, 13, 24, 0.72) 100%);
  }

  .screen-chip {
    position: absolute;
    top: 15px;
    left: 13px;
    z-index: 2;
    padding: 5px 11px;
    border-radius: 999px;
    font-size: 12px;
    color: #062F2D;
    font-weight: 700;
    background: linear-gradient(135deg, #2CE5D8, #22D3EE);
    box-shadow: 0 4px 14px rgba(34, 211, 238, 0.28);
  }

  .screen-note {
    position: absolute;
    left: 18px;
    right: 18px;
    bottom: 15px;
    z-index: 3;
    color: #fff;
    font-weight: 700;
    font-size: 15px;
    line-height: 1.4;
    text-shadow: 0 1px 12px rgba(0, 0, 0, 0.4);
  }

  .screen-note small {
    display: block;
    margin-top: 4px;
    color: rgba(255, 255, 255, 0.72);
    font-weight: 400;
    font-size: 12px;
  }

  .hero-screen::before {
    content: "";
    position: absolute;
    right: -24px;
    top: 36px;
    width: 140px;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(45, 212, 191, 0.8), transparent);
    transform: rotate(-24deg);
    filter: drop-shadow(0 0 6px rgba(45, 212, 191, 0.5));
  }

  /* 文档区 */
  .doc-region {
    padding: 70px 0 84px;
    position: relative;
    background:
      radial-gradient(circle at 20% 20%, rgba(45, 212, 191, 0.05), transparent 20%),
      radial-gradient(circle at 70% 60%, rgba(129, 140, 248, 0.04), transparent 30%),
      var(--bg);
    border-top: 1px solid rgba(255, 255, 255, 0.04);
  }

  .doc-layout {
    display: grid;
    grid-template-columns: 268px minmax(0, 1fr);
    gap: 44px;
    align-items: start;
  }

  /* 左侧目录 */
  .doc-toc {
    position: sticky;
    top: calc(var(--header-height) + 20px);
    background: rgba(255, 255, 255, 0.035);
    border: 1px solid rgba(255, 255, 255, 0.075);
    border-radius: var(--radius-md);
    padding: 20px 16px;
    transition: background 0.2s;
  }

  .toc-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 8px 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    color: #E6EDF7;
    font-weight: 800;
    font-size: 16px;
  }

  .toc-list {
    margin-top: 10px;
  }

  .toc-link {
    display: flex;
    align-items: baseline;
    gap: 10px;
    padding: 9px 8px;
    border-radius: 8px;
    color: var(--muted);
    font-size: 14px;
    line-height: 1.4;
    transition: background 0.2s, color 0.2s;
  }

  .toc-link .toc-index {
    flex: none;
    color: var(--brand);
    font-size: 13px;
    font-weight: 700;
    opacity: 0.75;
  }

  .toc-link:hover,
  .toc-link.active {
    background: rgba(45, 212, 191, 0.08);
    color: #F1F9FF;
  }

  .toc-link:hover .toc-index {
    opacity: 1;
  }

  .doc-toc .toc-bottom {
    margin-top: 14px;
    padding: 12px 8px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--dim);
    font-size: 13px;
    line-height: 1.6;
  }

  /* 右侧正文块 */
  .doc-main {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 56px;
  }

  .doc-block {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding-top: 46px;
  }

  .doc-block:first-child {
    border-top: 0;
    padding-top: 0;
  }

  .section-kicker {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--brand);
    font-size: 14px;
    font-weight: 700;
  }

  .section-kicker svg {
    width: 17px;
    height: 17px;
    stroke: currentColor;
    stroke-width: 2;
    fill: none;
  }

  .section-title {
    color: #F2F7FF;
    font-size: 26px;
    line-height: 1.3;
    font-weight: 800;
    margin: 10px 0 16px;
  }

  .doc-block p {
    color: #AAB8CE;
    line-height: 1.9;
    margin-bottom: 18px;
  }

  .doc-block p strong {
    color: #E6EDF7;
    font-weight: 600;
  }

  .text-note {
    color: var(--muted);
  }

  .guide-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 18px;
    margin: 24px 0;
  }

  .guide-note {
    background: rgba(255, 255, 255, 0.025);
    border: 1px solid rgba(255, 255, 255, 0.09);
    border-radius: var(--radius-md);
    padding: 22px 22px 20px;
    transition: background 0.25s, border-color 0.25s, transform 0.25s;
  }

  .guide-note:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(45, 212, 191, 0.3);
    transform: translateY(-2px);
  }

  .guide-note-accent {
    background: rgba(45, 212, 191, 0.05);
    border-color: rgba(45, 212, 191, 0.18);
  }

  .guide-note h3 {
    color: #E6EDF7;
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 9px;
  }

  .guide-note p {
    color: var(--muted);
    font-size: 15px;
    margin-bottom: 0;
  }

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

  .type-pill {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 8px 15px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: #C5D0E2;
    font-size: 14px;
    transition: background 0.2s, border-color 0.2s, color 0.2s;
  }

  .type-pill:hover {
    background: rgba(45, 212, 191, 0.08);
    border-color: rgba(45, 212, 191, 0.3);
    color: #E6FDF8;
  }

  .type-pill svg {
    width: 15px;
    height: 15px;
    stroke: var(--brand);
    fill: none;
  }

  /* 玩法拆解卡 */
  .case-card {
    display: grid;
    grid-template-columns: 220px minmax(0, 1fr);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    overflow: hidden;
    margin: 26px 0 18px;
    transition: border-color 0.25s, background 0.25s, transform 0.25s;
  }

  .case-card:hover {
    border-color: rgba(45, 212, 191, 0.35);
    background: rgba(255, 255, 255, 0.05);
    transform: translateY(-2px);
  }

  .case-media {
    position: relative;
    min-height: 210px;
    overflow: hidden;
    background: #0D1526;
  }

  .case-media img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  .case-media::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(11, 17, 32, 0), rgba(11, 17, 32, 0.35));
  }

  .media-chip {
    position: absolute;
    left: 10px;
    bottom: 10px;
    z-index: 2;
    padding: 5px 10px;
    border-radius: 999px;
    background: rgba(11, 17, 32, 0.65);
    backdrop-filter: blur(8px);
    color: #fff;
    font-size: 12px;
    border: 1px solid rgba(255, 255, 255, 0.12);
  }

  .case-content {
    padding: 24px 26px;
  }

  .case-title-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 10px;
  }

  .case-title-row h3 {
    color: #F2F7FF;
    font-size: 20px;
    font-weight: 800;
  }

  .case-tag {
    padding: 4px 10px;
    border-radius: 999px;
    background: rgba(245, 176, 74, 0.1);
    border: 1px solid rgba(245, 176, 74, 0.35);
    color: var(--amber);
    font-size: 12px;
    font-weight: 600;
  }

  .case-content > p {
    color: var(--muted);
    font-size: 15px;
    line-height: 1.85;
    margin-bottom: 14px;
  }

  .check-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
  }

  .check-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    color: #B8C4D8;
    font-size: 15px;
    line-height: 1.6;
  }

  .check-list svg {
    flex: none;
    width: 16px;
    height: 16px;
    margin-top: 7px;
    stroke: var(--success);
    fill: none;
    stroke-width: 2;
  }

  .row-two-cases {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
    margin: 18px 0 8px;
  }

  .mini-case {
    background: rgba(255, 255, 255, 0.025);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform 0.25s, border-color 0.25s, background 0.25s;
  }

  .mini-case:hover {
    transform: translateY(-3px);
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(45, 212, 191, 0.28);
  }

  .mini-cover {
    position: relative;
    overflow: hidden;
    height: 180px;
    background: #101B30;
  }

  .mini-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  .mini-cover::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent, rgba(9, 14, 25, 0.72));
  }

  .mini-case-body {
    padding: 18px 18px 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
  }

  .mini-case-body .case-tag {
    align-self: flex-start;
    margin-bottom: 8px;
  }

  .mini-case-body h4 {
    color: #EDF4FF;
    font-size: 18px;
    font-weight: 800;
    margin-bottom: 8px;
  }

  .mini-case-body p {
    color: var(--muted);
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 0;
  }

  /* 阅读路径 */
  .step-list {
    display: flex;
    flex-direction: column;
    margin-top: 26px;
    position: relative;
  }

  .step-item {
    position: relative;
    padding: 0 0 34px 70px;
  }

  .step-item::before {
    content: "";
    position: absolute;
    top: 28px;
    bottom: 2px;
    left: 23px;
    width: 1px;
    background: linear-gradient(180deg, rgba(45, 212, 191, 0.6), rgba(45, 212, 191, 0.05));
  }

  .step-item:last-child {
    padding-bottom: 4px;
  }

  .step-item:last-child::before {
    display: none;
  }

  .step-num {
    position: absolute;
    left: 0;
    top: 0;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: rgba(45, 212, 191, 0.1);
    border: 1px solid rgba(45, 212, 191, 0.4);
    color: var(--brand);
    font-weight: 800;
    font-size: 17px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 18px rgba(45, 212, 191, 0.15);
  }

  .step-body h4 {
    color: #EAF2FC;
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 7px;
  }

  .step-body p {
    color: var(--muted);
    font-size: 15px;
    line-height: 1.85;
    margin-bottom: 0;
  }

  .step-body .tip-callout {
    display: inline-flex;
    margin-top: 10px;
    padding: 6px 14px;
    border-radius: 999px;
    font-size: 13px;
    color: #AADFD8;
    background: rgba(45, 212, 191, 0.08);
    border: 1px solid rgba(45, 212, 191, 0.14);
  }

  /* 自查清单 */
  .tips-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 18px;
    margin-top: 26px;
  }

  .tips-panel {
    border-radius: var(--radius-md);
    padding: 26px;
    border: 1px solid rgba(255, 255, 255, 0.09);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.015));
  }

  .tips-panel h4 {
    color: #EAF2FC;
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 800;
    margin-bottom: 12px;
  }

  .tips-panel p {
    color: var(--muted);
    font-size: 15px;
    margin-bottom: 16px;
    line-height: 1.85;
  }

  .check-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 7px 0;
    color: #B9C6DB;
    font-size: 14px;
    line-height: 1.7;
  }

  .check-item svg {
    width: 17px;
    height: 17px;
    margin-top: 5px;
    fill: none;
    stroke: var(--success);
    stroke-width: 2;
    flex: none;
  }

  .amber-panel {
    background: rgba(245, 176, 74, 0.05);
    border-color: rgba(245, 176, 74, 0.18);
  }

  .amber-panel h4 {
    color: #F7C981;
  }

  .amber-panel .seal-text {
    display: block;
    padding: 12px 16px;
    border-radius: 12px;
    background: rgba(245, 176, 74, 0.07);
    border-left: 3px solid rgba(245, 176, 74, 0.6);
    color: #E7CEAD;
    font-size: 14px;
    line-height: 1.8;
  }

  .seal-icon {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(245, 176, 74, 0.14);
    color: var(--amber);
  }

  /* 资料边界 */
  .note-panel {
    border-radius: var(--radius-md);
    padding: 22px 24px;
    background: rgba(129, 140, 248, 0.05);
    border: 1px solid rgba(129, 140, 248, 0.2);
    display: flex;
    gap: 16px;
    align-items: flex-start;
  }

  .note-panel .note-icon {
    flex: none;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #A5B4FC;
    background: rgba(129, 140, 248, 0.15);
  }

  .note-panel p {
    margin-bottom: 0;
    color: #BFC5DE;
    font-size: 15px;
  }

  .note-panel strong {
    color: #E6EDF7;
  }

  /* FAQ */
  .faq-list {
    margin-top: 26px;
    display: flex;
    flex-direction: column;
    gap: 12px;
  }

  .faq-item {
    background: rgba(255, 255, 255, 0.025);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    transition: border-color 0.25s, background 0.25s;
    overflow: hidden;
  }

  .faq-item:hover {
    border-color: rgba(255, 255, 255, 0.18);
    background: rgba(255, 255, 255, 0.035);
  }

  .faq-item.open {
    border-color: rgba(45, 212, 191, 0.35);
    background: rgba(255, 255, 255, 0.04);
  }

  .faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 18px 20px;
    background: transparent;
    color: #EAF2FC;
    font-size: 16px;
    font-weight: 600;
    text-align: left;
    line-height: 1.6;
  }

  .faq-question .chevron-icon {
    flex: none;
    width: 18px;
    height: 18px;
    color: var(--brand);
    stroke: currentColor;
    stroke-width: 2;
    fill: none;
    transition: transform 0.3s ease;
  }

  .faq-item.open .chevron-icon {
    transform: rotate(180deg);
  }

  .faq-answer {
    display: none;
    padding: 0 20px 20px;
    color: var(--muted);
    font-size: 15px;
    line-height: 1.85;
  }

  .faq-item.open .faq-answer {
    display: block;
    animation: fadeInDown 0.32s ease;
  }

  @keyframes fadeInDown {
    from {
      opacity: 0;
      transform: translateY(-6px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  /* 底部 CTA */
  .cta-panel {
    position: relative;
    isolation: isolate;
    margin-top: 16px;
    padding: 74px 0;
    overflow: hidden;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
  }

  .cta-panel::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -2;
    background:
      url("/assets/images/backpic/back-3.png") center / cover no-repeat,
      #0B1120;
  }

  .cta-panel::after {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -1;
    background: linear-gradient(90deg, rgba(7, 11, 24, 0.96) 8%, rgba(11, 17, 32, 0.88) 60%, rgba(10, 17, 32, 0.75));
  }

  .cta-inner {
    max-width: 780px;
  }

  .cta-kicker {
    color: var(--brand);
    font-weight: 700;
    font-size: 14px;
    margin-bottom: 12px;
  }

  .cta-title {
    font-size: clamp(26px, 4vw, 38px);
    line-height: 1.25;
    font-weight: 900;
    color: #F6F9FF;
    margin-bottom: 18px;
  }

  .cta-inner p {
    color: #BBC9DE;
    font-size: 16px;
    line-height: 1.9;
    margin-bottom: 28px;
  }

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

  /* 页脚 */
  .site-footer {
    background: #060A14;
    color: #9AA8BE;
    padding: 64px 0 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 1.7fr 1fr 1fr 0.9fr;
    gap: 44px;
    padding-bottom: 36px;
  }

  .footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #E6EDF7;
    font-size: 19px;
    font-weight: 800;
    margin-bottom: 14px;
  }

  .footer-brand p {
    max-width: 300px;
    color: #6F7E9B;
    font-size: 14px;
    line-height: 1.8;
    margin-top: 10px;
  }

  .footer-col-title {
    color: #DCE5F4;
    font-weight: 700;
    font-size: 16px;
    margin-bottom: 16px;
  }

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

  .footer-col a {
    display: inline-flex;
    color: #7E8CA8;
    font-size: 14px;
    line-height: 1.6;
    transition: color 0.2s, padding-left 0.2s;
  }

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

  .footer-bottom {
    display: flex;
    flex-direction: column;
    gap: 12px;
    align-items: center;
    justify-content: space-between;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    color: #566380;
    font-size: 13px;
  }

  .footer-secure {
    display: flex;
    gap: 18px;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
  }

  .footer-secure span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
  }

  .footer-secure span::before {
    content: "";
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--brand);
    opacity: 0.7;
  }

  /* 响应式 */
  @media (max-width: 1180px) {
    .search-input {
      width: 150px;
    }

    .nav-link {
      padding: 0 10px;
      font-size: 14px;
    }

    .header-cta {
      padding: 0 16px;
    }
  }

  @media (max-width: 1024px) {
    .header-inner {
      gap: 16px;
    }

    .main-nav,
    .search-form {
      display: none;
    }

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

    .header-tools {
      margin-left: 0;
    }

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

    .doc-toc {
      position: static;
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      align-items: center;
      background: rgba(255, 255, 255, 0.02);
      border-color: transparent;
      padding: 10px 0;
    }

    .toc-title {
      display: none;
    }

    .toc-list {
      display: flex;
      flex-wrap: wrap;
      margin-top: 0;
    }

    .toc-link {
      padding: 7px 10px;
      border-radius: 999px;
      background: rgba(255, 255, 255, 0.05);
    }

    .toc-list li + li {
      margin-left: 6px;
    }

    .doc-toc .toc-bottom {
      display: none;
    }

    .cat-hero {
      min-height: 0;
      padding: 60px 0 72px;
    }

    .cat-hero-content {
      grid-template-columns: minmax(0, 1fr);
    }

    .hero-screen {
      display: none;
    }

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

  @media (max-width: 760px) {
    .container {
      padding: 0 20px;
    }

    .header-inner {
      padding: 0 16px;
      gap: 10px;
    }

    .brand-text {
      font-size: 18px;
    }

    .brand-icon {
      width: 32px;
      height: 32px;
    }

    .header-cta {
      display: none;
    }

    .cat-hero {
      padding: 50px 0 58px;
    }

    .cat-hero-title {
      font-size: 38px;
    }

    .cat-hero-lead {
      font-size: 16px;
    }

    .guide-grid,
    .row-two-cases,
    .tips-grid {
      grid-template-columns: 1fr;
    }

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

    .case-media {
      min-height: 220px;
      position: relative;
    }

    .case-media img {
      position: absolute;
    }

    .section-title {
      font-size: 23px;
    }

    .doc-region {
      padding: 50px 0 60px;
    }

    .doc-main {
      gap: 42px;
    }

    .cta-panel {
      padding: 52px 0;
    }

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

    .footer-grid {
      grid-template-columns: 1fr;
      gap: 34px;
    }

    .footer-bottom {
      align-items: flex-start;
    }

    .footer-secure {
      justify-content: flex-start;
    }
  }

  @media (max-width: 480px) {
    body {
      font-size: 15px;
    }

    .cat-hero-title {
      font-size: 32px;
    }

    .eyebrow {
      font-size: 12px;
    }

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

    .doc-toc {
      overflow-x: auto;
      padding-bottom: 6px;
    }

    .doc-toc .toc-list {
      flex-wrap: nowrap;
      width: max-content;
    }

    .check-list svg {
      margin-top: 5px;
    }

    .faq-question {
      font-size: 15px;
      padding: 16px 16px;
    }

    .faq-answer {
      padding: 0 16px 18px;
    }
  }

/* roulang page: category2 */
:root {
  --bg: #0b1120;
  --surface: #0f1729;
  --panel: rgba(255, 255, 255, 0.06);
  --panel-strong: rgba(13, 20, 36, 0.86);
  --white: #ffffff;
  --text: #e6edf7;
  --muted: #9aa8be;
  --weak: #6b7b98;
  --line: rgba(255, 255, 255, 0.1);
  --primary: #2ce5d8;
  --cyan: #22d3ee;
  --indigo: #818cf8;
  --indigo-2: #6366f1;
  --amber: #f5b04a;
  --success: #34d399;
  --error: #fb7185;
  --warning: #fbbf24;
  --radius-sm: 12px;
  --radius: 16px;
  --radius-lg: 24px;
  --radius-round: 999px;
  --shadow: 0 18px 60px rgba(0, 0, 0, 0.28);
  --glow: 0 0 28px rgba(45, 212, 191, 0.3);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

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

button,
input {
  font: inherit;
  border: none;
  outline: none;
  background: none;
}

ul,
ol {
  list-style: none;
}

.container {
  width: min(1280px, 100% - 48px);
  margin-inline: auto;
}

.section {
  padding: 74px 0;
}

/* 顶部通栏白底导航 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--white);
  border-bottom: 1px solid rgba(11, 17, 32, 0.08);
  box-shadow: 0 6px 22px rgba(11, 17, 32, 0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  height: 70px;
  gap: 18px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: max-content;
}

.brand-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: linear-gradient(135deg, #0f1729, #2ce5d8);
  color: #0b1120;
  box-shadow: 0 6px 16px rgba(34, 211, 238, 0.18);
}

.brand-icon svg {
  width: 20px;
  height: 20px;
  fill: #052e2b;
}

.brand-name {
  font-weight: 700;
  font-size: 18px;
  color: #0b1120;
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 2px;
  margin: 0 auto;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  align-items: center;
  justify-content: center;
  color: #0b1120;
  cursor: pointer;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 16px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  color: #334155;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.nav-link:hover {
  color: #0b1120;
  background: #f1f5f9;
}

.nav-link.active {
  color: #063f3a;
  background: rgba(44, 229, 216, 0.16);
  font-weight: 600;
}

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

.header-search {
  position: relative;
  display: flex;
  align-items: center;
  width: 208px;
  height: 38px;
  background: #f1f5f9;
  border: 1px solid transparent;
  border-radius: var(--radius-round);
  padding: 0 14px;
  transition: all 0.2s ease;
}

.header-search:focus-within {
  background: #fff;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(44, 229, 216, 0.14);
}

.header-search svg {
  width: 16px;
  height: 16px;
  fill: #64748b;
  flex-shrink: 0;
}

.header-search input {
  width: 100%;
  padding-left: 8px;
  font-size: 14px;
  color: #0b1120;
  background: transparent;
}

.header-search input::placeholder {
  color: #94a3b8;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 44px;
  padding: 0 22px;
  border-radius: var(--radius-round);
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, #2ce5d8, #22d3ee);
  color: #052e2b;
  box-shadow: 0 8px 24px rgba(44, 229, 216, 0.16);
}

.btn-primary:hover {
  box-shadow: 0 10px 34px rgba(44, 229, 216, 0.34);
  transform: translateY(-2px);
}

.btn-primary:active {
  transform: translateY(0) scale(0.97);
  box-shadow: 0 4px 14px rgba(44, 229, 216, 0.24);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.14);
}

.btn-ghost:hover {
  border-color: rgba(255, 255, 255, 0.30);
  background: rgba(255, 255, 255, 0.14);
  transform: translateY(-2px);
}

.btn-ghost:active {
  transform: translateY(0) scale(0.97);
  background: rgba(255, 255, 255, 0.2);
}

.btn-sm {
  min-height: 38px;
  padding: 0 18px;
  font-size: 14px;
}

/* ====== 活动资讯页首屏 ====== */
.activity-hero {
  position: relative;
  padding: 84px 0 96px;
  background:
    linear-gradient(98deg, rgba(11, 17, 32, 0.98) 38%, rgba(12, 22, 45, 0.86) 66%, rgba(20, 40, 65, 0.86) 100%),
    url("/assets/images/backpic/back-1.webp") center / cover no-repeat;
  overflow: hidden;
}

.activity-hero::before {
  content: "";
  position: absolute;
  width: 560px;
  height: 560px;
  right: -120px;
  top: 18%;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.25), transparent 65%);
  pointer-events: none;
}

.activity-hero::after {
  content: "";
  position: absolute;
  width: 420px;
  height: 420px;
  left: -130px;
  bottom: -80px;
  background: radial-gradient(circle, rgba(44, 229, 216, 0.16), transparent 70%);
  pointer-events: none;
}

.hero-cat-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 56px;
  align-items: center;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--weak);
  margin-bottom: 28px;
}

.breadcrumb li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.breadcrumb li + li::before {
  content: "/";
  color: #475569;
}

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

.cat-overline {
  display: inline-flex;
  align-items: center;
  width: max-content;
  margin-bottom: 18px;
  padding: 7px 14px 7px 10px;
  gap: 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: var(--primary);
  font-size: 14px;
  font-weight: 500;
  backdrop-filter: blur(12px);
}

.cat-overline svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

.activity-hero h1 {
  font-size: clamp(42px, 6vw, 68px);
  line-height: 1.12;
  font-weight: 750;
  color: #f0f7ff;
  margin-bottom: 18px;
  background: linear-gradient(180deg, #ffffff, #cfe9ff);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-lead {
  font-size: 17px;
  color: var(--muted);
  line-height: 1.9;
  max-width: 700px;
  margin-bottom: 28px;
}

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

.hero-card-ticket {
  position: relative;
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.09), rgba(15, 23, 42, 0.72));
  border: 1px solid rgba(255, 255, 255, 0.13);
  backdrop-filter: blur(16px);
  border-radius: 22px;
  padding: 26px;
  box-shadow: var(--shadow), 0 0 0 1px rgba(44, 229, 216, 0.08);
}

.hero-ticket-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 22px;
}

.hero-ticket-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
}

.hero-ticket-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  background: rgba(52, 211, 153, 0.12);
  border: 1px solid rgba(52, 211, 153, 0.3);
  color: var(--success);
  border-radius: 999px;
  font-size: 13px;
}

.hero-ticket-status::before {
  content: "";
  display: block;
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--success);
  box-shadow: 0 0 0 4px rgba(52, 211, 153, 0.18);
}

.hero-ticket h3 {
  font-size: 19px;
  font-weight: 650;
  color: #eef7ff;
  margin-bottom: 10px;
}

.hero-ticket-desc {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
  margin-bottom: 20px;
}

.ticket-meta {
  display: grid;
  gap: 10px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.09);
}

.ticket-meta div {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 14px;
}

.ticket-meta span {
  color: var(--weak);
}

.ticket-meta strong {
  color: var(--text);
  font-weight: 500;
  text-align: right;
}

/* ====== 横向长预告 ====== */
.preview-section {
  padding: 64px 0 80px;
  scroll-margin-top: 80px;
}

.preview-banner {
  position: relative;
  border-radius: 24px;
  overflow: hidden;
  background:
    linear-gradient(95deg, rgba(10, 18, 35, 0.96) 28%, rgba(15, 27, 55, 0.86) 62%, rgba(46, 73, 122, 0.55)),
    url("/assets/images/backpic/back-2.webp") center / cover no-repeat;
  border: 1px solid rgba(129, 140, 248, 0.22);
  box-shadow: var(--shadow);
  padding: 46px 48px;
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 30px;
  align-items: center;
}

.preview-banner::after {
  content: "";
  position: absolute;
  width: 400px;
  height: 400px;
  right: -90px;
  bottom: -140px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.30), transparent 70%);
  pointer-events: none;
}

.preview-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  font-size: 14px;
  color: var(--indigo);
  font-weight: 600;
}

.preview-label::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--indigo);
  box-shadow: 0 0 0 5px rgba(129, 140, 248, 0.18);
}

.preview-banner h2 {
  font-size: clamp(26px, 3.2vw, 38px);
  line-height: 1.3;
  color: #f0f6ff;
  font-weight: 700;
  margin-bottom: 14px;
}

.preview-banner p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.9;
  max-width: 640px;
  margin-bottom: 24px;
}

.preview-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 18px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  background: rgba(44, 229, 216, 0.12);
  border: 1px solid rgba(44, 229, 216, 0.20);
  color: var(--primary);
  border-radius: 999px;
  font-size: 13px;
}

.preview-side {
  position: relative;
  text-align: right;
}

.preview-card-note {
  position: relative;
  z-index: 2;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 180px;
  padding: 24px 28px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(12px);
  min-width: 220px;
}

.preview-card-note strong {
  font-size: 16px;
  color: var(--text);
  margin-bottom: 8px;
}

.preview-card-note span {
  color: var(--muted);
  font-size: 13px;
}

.preview-card-note .btn {
  margin-top: 20px;
}

/* ====== 活动纵览列表 ====== */
.activity-list-section {
  background: linear-gradient(180deg, var(--bg), rgba(15, 23, 42, 0.6), var(--bg));
  scroll-margin-top: 80px;
}

.list-section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 26px;
}

.list-section-head h2 {
  font-size: clamp(26px, 3.4vw, 38px);
  font-weight: 700;
  line-height: 1.25;
  color: #f0f7ff;
  margin-bottom: 10px;
  position: relative;
}

.list-section-head h2::after {
  content: "";
  display: block;
  width: 44px;
  height: 3px;
  margin-top: 14px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--primary), transparent);
}

.list-section-head p {
  color: var(--muted);
  font-size: 15px;
  max-width: 440px;
}

.activity-list {
  margin-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
}

.activity-row {
  display: grid;
  grid-template-columns: 140px 1fr auto;
  gap: 28px;
  padding: 24px 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.10);
  align-items: center;
  transition: all 0.3s ease;
  border-radius: 16px;
  position: relative;
}

.activity-row:hover {
  background: rgba(255, 255, 255, 0.04);
  border-bottom-color: rgba(44, 229, 216, 0.22);
  transform: translateX(6px);
  box-shadow: -18px 0 40px rgba(44, 229, 216, 0.02);
}

.activity-thumb {
  position: relative;
  border-radius: 14px;
  overflow: hidden;
  background: #101b30;
  width: 140px;
  height: 176px;
  box-shadow: 0 8px 26px rgba(0, 0, 0, 0.18);
}

.activity-thumb::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(4, 8, 18, 0.3));
  pointer-events: none;
}

.activity-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s ease;
}

.activity-row:hover .activity-thumb img {
  transform: scale(1.06);
}

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

.activity-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.activity-main h3 {
  font-size: 18px;
  font-weight: 650;
  color: #ecf4ff;
  line-height: 1.45;
  margin-bottom: 8px;
  transition: color 0.2s;
}

.activity-row:hover .activity-main h3 {
  color: var(--primary);
}

.activity-main p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.activity-more {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: 999px;
  color: var(--weak);
  transition: all 0.25s ease;
}

.activity-more svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

.activity-row:hover .activity-more {
  color: var(--primary);
  border-color: rgba(44, 229, 216, 0.40);
  transform: translateX(4px);
}

/* 状态文字 */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 13px;
  line-height: 1.4;
}

.status-badge::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: currentColor;
}

.status-live {
  color: var(--success);
  background: rgba(52, 211, 153, 0.10);
  border: 1px solid rgba(52, 211, 153, 0.22);
}

.status-ready {
  color: #7dd3fc;
  background: rgba(56, 189, 248, 0.10);
  border: 1px solid rgba(56, 189, 248, 0.22);
}

.status-wait {
  color: var(--amber);
  background: rgba(245, 176, 74, 0.10);
  border: 1px solid rgba(245, 176, 74, 0.22);
}

.status-used {
  color: var(--weak);
  background: rgba(107, 123, 152, 0.12);
  border: 1px solid rgba(107, 123, 152, 0.20);
}

.time-note {
  font-size: 14px;
  color: var(--weak);
  background: rgba(255, 255, 255, 0.06);
  border-radius: 999px;
  padding: 4px 12px;
}

/* 玩法规则区域 */
.how-section {
  scroll-margin-top: 80px;
}

.how-grid {
  display: grid;
  grid-template-columns: 0.75fr 1.25fr;
  gap: 40px;
  align-items: start;
}

.how-aside h2 {
  font-size: clamp(25px, 3vw, 34px);
  line-height: 1.4;
  margin-bottom: 14px;
  color: #f1f7ff;
  font-weight: 700;
}

.how-aside p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.9;
}

.journey-list {
  position: relative;
  border-left: 1px solid rgba(129, 140, 248, 0.35);
  margin-left: 12px;
  padding-left: 24px;
}

.journey-item {
  position: relative;
  padding-bottom: 28px;
  background: rgba(15, 23, 42, 0.5);
  border-radius: 16px;
  padding: 22px 24px 22px 52px;
  margin-bottom: 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: all 0.2s;
}

.journey-item:hover {
  border-color: rgba(44, 229, 216, 0.22);
  background: rgba(13, 20, 36, 0.75);
}

.journey-num {
  position: absolute;
  left: -15px;
  top: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 999px;
  background: linear-gradient(135deg, #2ce5d8, #22d3ee);
  color: #052e2b;
  font-weight: 700;
  font-size: 14px;
  box-shadow: 0 0 0 5px rgba(34, 211, 238, 0.08);
}

.journey-item h3 {
  font-size: 17px;
  color: #eef7ff;
  margin-bottom: 7px;
}

.journey-item p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}

/* ====== FAQ 折叠 ====== */
.faq-section {
  padding-top: 72px;
  padding-bottom: 80px;
}

.faq-wrap {
  display: grid;
  grid-template-columns: 330px 1fr;
  gap: 54px;
  align-items: start;
}

.faq-intro h2 {
  font-size: clamp(26px, 3vw, 38px);
  color: #eef7ff;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 18px;
}

.faq-intro p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.9;
  margin-bottom: 24px;
}

.faq-intro .btn {
  width: max-content;
}

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

.faq-item {
  background: rgba(15, 23, 42, 0.76);
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: 16px;
  overflow: hidden;
  transition: border-color 0.2s ease;
}

.faq-item[open] {
  border-color: rgba(44, 229, 216, 0.26);
}

.faq-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 22px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  background: transparent;
  transition: background 0.2s;
  list-style: none;
}

.faq-summary::-webkit-details-marker {
  display: none;
}

.faq-summary:hover {
  background: rgba(255, 255, 255, 0.04);
}

.faq-summary span:last-child {
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  font-size: 20px;
  font-weight: 400;
  color: var(--weak);
  background: rgba(255, 255, 255, 0.06);
  flex-shrink: 0;
  transition: transform 0.25s, color 0.2s;
}

.faq-item[open] .faq-summary span:last-child {
  color: var(--primary);
  transform: rotate(45deg);
}

.faq-body {
  padding: 0 22px 20px;
  border-top: 0;
}

.faq-body p {
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.07);
  color: var(--muted);
  font-size: 15px;
  line-height: 1.9;
}

/* 尾段 CTA */
.cta-banner {
  position: relative;
  border-radius: 24px;
  overflow: hidden;
  padding: 58px 60px;
  background: linear-gradient(135deg, rgba(44, 229, 216, 0.16), rgba(99, 102, 241, 0.22)), rgba(15, 23, 42, 0.88);
  border: 1px solid rgba(44, 229, 216, 0.18);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 36px;
  box-shadow: var(--shadow);
}

.cta-banner::before {
  content: "";
  position: absolute;
  width: 420px;
  height: 420px;
  right: -140px;
  top: -170px;
  background: radial-gradient(circle, rgba(34, 211, 238, 0.22), transparent 65%);
}

.cta-copy h2 {
  font-size: clamp(24px, 3vw, 34px);
  color: #f1f9ff;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 10px;
}

.cta-copy p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.9;
  max-width: 640px;
}

.cta-buttons {
  flex-shrink: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

/* ====== 页脚 ====== */
.site-footer {
  margin-top: 72px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  background: linear-gradient(180deg, #070b15, #060a11);
  padding: 64px 0 26px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 28px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 700;
  color: #dbeafe;
  margin-bottom: 16px;
}

.footer-brand p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.9;
}

.footer-col-title {
  color: #dbeafe;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 16px;
}

.footer-col ul li {
  margin-bottom: 12px;
}

.footer-col ul a {
  color: var(--muted);
  font-size: 15px;
  transition: color 0.2s, padding-left 0.2s;
}

.footer-col ul a:hover {
  color: var(--primary);
  padding-left: 4px;
}

.footer-bottom {
  padding-top: 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  color: var(--weak);
  font-size: 14px;
}

.footer-secure {
  display: flex;
  gap: 16px;
  align-items: center;
}

/* ====== 响应式 ====== */
@media (max-width: 1180px) {
  .nav-link {
    padding: 0 12px;
    font-size: 14px;
  }

  .header-search {
    width: 160px;
  }

  .preview-banner {
    padding: 36px;
  }
}

@media (max-width: 1024px) {
  .nav-toggle {
    display: inline-flex;
    margin-left: auto;
  }

  .main-nav {
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid rgba(11, 17, 32, 0.10);
    flex-direction: column;
    align-items: stretch;
    padding: 10px 18px 16px;
    gap: 4px;
    box-shadow: 0 18px 40px rgba(11, 17, 32, 0.16);
    display: none;
  }

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

  .nav-link {
    justify-content: flex-start;
    padding: 0 16px;
    min-height: 44px;
    border-radius: 12px;
    font-size: 15px;
  }

  .nav-link:hover,
  .nav-link.active {
    background: #f1f5f9;
    color: #0b1120;
  }

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

  .hero-card-ticket {
    max-width: 620px;
  }

  .preview-banner {
    grid-template-columns: 1fr;
    padding: 32px;
  }

  .preview-side {
    text-align: left;
  }

  .preview-card-note {
    align-items: flex-start;
    width: 100%;
  }

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

  .faq-wrap {
    grid-template-columns: 1fr;
    gap: 24px;
  }

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

  .cta-banner {
    flex-direction: column;
    align-items: flex-start;
    padding: 44px 32px;
  }
}

@media (max-width: 768px) {
  .container {
    width: min(100% - 24px, 720px);
  }

  .brand-name {
    font-size: 16px;
  }

  .brand-icon {
    width: 34px;
    height: 34px;
  }

  .header-search {
    display: none;
  }

  .header-actions .btn-sm {
    display: none;
  }

  .section {
    padding: 52px 0;
  }

  .activity-hero {
    padding: 36px 0 52px;
  }

  .hero-lead {
    font-size: 16px;
  }

  .activity-list-section {
    padding-top: 46px;
  }

  .activity-row {
    grid-template-columns: 96px 1fr;
    gap: 16px;
    padding: 20px 8px;
  }

  .activity-thumb {
    width: 96px;
    height: 126px;
  }

  .activity-more {
    display: none;
  }

  .activity-main p {
    font-size: 14px;
  }

  .journey-item {
    padding-left: 46px;
    padding-right: 14px;
  }

  .journey-num {
    left: -13px;
  }

  .cta-banner {
    padding: 32px 20px;
  }

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

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

  .preview-banner {
    padding: 24px 20px;
  }

  .preview-banner h2 {
    font-size: 24px;
  }
}

@media (max-width: 520px) {
  .activity-row {
    grid-template-columns: 84px 1fr;
    gap: 14px;
  }

  .activity-thumb {
    width: 84px;
    height: 108px;
    border-radius: 12px;
  }

  .activity-main h3 {
    font-size: 16px;
  }

  .activity-meta {
    gap: 8px;
  }

  .time-note {
    font-size: 12px;
    padding: 2px 8px;
  }

  .status-badge {
    font-size: 12px;
    padding: 3px 8px;
  }

  .cat-overline {
    font-size: 13px;
  }

  .activity-hero h1 {
    font-size: 40px;
  }
}

/* roulang page: category3 */
:root{
  --bg:#0B1120;
  --bg-soft:#0F1729;
  --bg-deep:#070D1A;
  --panel:rgba(255,255,255,0.04);
  --panel-2:rgba(255,255,255,0.06);
  --glass:rgba(255,255,255,0.05);
  --line:rgba(255,255,255,0.10);
  --line-strong:rgba(255,255,255,0.18);
  --primary:#2CE5D8;
  --cyan:#22D3EE;
  --indigo:#818CF8;
  --amber:#F5B04A;
  --danger:#FB7185;
  --success:#34D399;
  --text:#E6EDF7;
  --text-2:#9AA8BE;
  --text-3:#6B7B98;
  --radius:16px;
  --radius-lg:24px;
  --shadow:0 8px 30px rgba(0,0,0,0.25);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box;font-family:var(--font)}
html{scroll-behavior:smooth}
body{background-color:var(--bg);color:var(--text);line-height:1.7;overflow-x:hidden;min-height:100vh}
body.no-scroll{overflow:hidden}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input,textarea{font:inherit;border:none;outline:none;background:none}
ul,ol{list-style:none}
strong{font-weight:700;color:#FFF}

.wrap{max-width:1280px;margin:0 auto;padding-left:32px;padding-right:32px}
@media (max-width:768px){.wrap{padding-left:20px;padding-right:20px}}

/* ========== 导航 ========== */
.site-header{
  position:sticky;top:0;z-index:100;background:rgba(255,255,255,0.97);
  box-shadow:0 4px 20px rgba(15,23,42,0.05);border-bottom:1px solid rgba(15,23,42,0.07);
  backdrop-filter:blur(18px);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:18px}
.brand-logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;font-weight:800;font-size:20px;color:#0F1729}
.brand-icon{
  width:38px;height:38px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  color:#06251F;background:linear-gradient(135deg,#2CE5D8,#22D3EE);
  box-shadow:0 8px 20px rgba(34,211,238,0.28);flex-shrink:0;
}
.brand-icon svg{width:20px;height:20px;fill:#0B2330}
.brand-text{white-space:nowrap}
.main-nav{display:flex;gap:6px;align-items:center}
.nav-link{
  position:relative;padding:8px 16px;border-radius:999px;font-size:15px;font-weight:600;color:#334155;
  transition:all .2s ease;white-space:nowrap;
}
.nav-link:hover{background:#F1F5F9;color:#0F1729}
.nav-link.active{background:#F0FDFC;color:#0E8E88;outline:1px solid rgba(44,229,216,0.4)}
.header-actions{display:flex;align-items:center;gap:12px}
.header-search{display:flex;align-items:center;gap:8px;width:200px;height:40px;background:#F1F5F9;border:1px solid transparent;border-radius:999px;padding:0 16px;transition:all .2s ease}
.header-search:focus-within{background:#fff;border-color:#2CE5D8;box-shadow:0 0 0 3px rgba(44,229,216,0.15)}
.header-search svg{width:16px;height:16px;stroke:#64748B;flex-shrink:0}
.header-search input{flex:1;background:transparent;font-size:14px;color:#0F1729;min-width:0}
.header-search input::placeholder{color:#94A3B8}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;
  padding:0 22px;border-radius:999px;font-size:15px;font-weight:700;line-height:1;
  cursor:pointer;transition:transform .2s ease,box-shadow .25s ease,background .2s ease,border-color .2s ease;
  text-align:center;user-select:none;white-space:nowrap;
}
.btn:active{transform:translateY(1px) scale(0.99)}
.btn-primary{
  color:#06251F;background:linear-gradient(135deg,#2CE5D8 0%,#22D3EE 100%);
  box-shadow:0 6px 22px rgba(34,211,238,0.30),0 0 0 1px rgba(255,255,255,0.15) inset;
}
.btn-primary:hover{box-shadow:0 10px 30px rgba(34,211,238,0.5);transform:translateY(-2px)}
.btn-primary:active{box-shadow:0 3px 15px rgba(34,211,238,0.4);transform:translateY(0)}
.btn-secondary{
  background:rgba(255,255,255,0.08);color:var(--text);border:1px solid var(--line-strong);
  backdrop-filter:blur(8px);
}
.btn-secondary:hover{border-color:rgba(255,255,255,0.35);background:rgba(255,255,255,0.13);color:#fff}
.btn-line{
  height:36px;padding:0 18px;border:1px solid #E2E8F0;background:#fff;border-radius:999px;
  color:#0F1729;font-size:14px;font-weight:600;
}
.btn-line:hover{border-color:#2CE5D8;color:#0E8E88}
.header-cta{height:38px;padding:0 18px;font-size:14px;box-shadow:none;color:#06251F;background:linear-gradient(135deg,#2CE5D8,#22D3EE);border-radius:999px;font-weight:800;display:flex;align-items:center}
.burger{display:none}

/* ========== 分类页通用 hero ========== */
.cat-hero{
  position:relative;color:#fff;overflow:hidden;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.cat-hero::before{content:'';position:absolute;inset:0;background:linear-gradient(100deg,rgba(7,14,26,0.94) 0%,rgba(10,16,34,0.78) 54%,rgba(10,16,34,0.44) 100%);}
.cat-hero::after{content:'';position:absolute;inset:auto 0 0 0;height:120px;background:linear-gradient(to bottom,rgba(11,17,32,0),#0B1120);pointer-events:none}
.cat-hero-inner{position:relative;z-index:2;display:flex;gap:40px;align-items:center;justify-content:space-between;padding:96px 0 96px;min-height:680px}
.eyebrow{
  display:inline-flex;align-items:center;gap:6px;padding:7px 14px;border:1px solid rgba(44,229,216,0.44);
  border-radius:999px;background:rgba(44,229,216,0.08);color:var(--primary);
  font-size:14px;font-weight:600;letter-spacing:0;
}
.eyebrow-dot{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 12px rgba(44,229,216,0.9)}
.cat-hero h1{
  font-size:clamp(38px,7vw,76px);line-height:1.1;text-shadow:0 6px 30px rgba(0,0,0,0.3);
  font-weight:900;margin-top:20px;letter-spacing:-1px;
}
.cat-hero-lead{max-width:620px;margin-top:22px;font-size:17px;line-height:1.9;color:rgba(230,237,247,0.92);text-shadow:0 2px 12px rgba(0,0,0,0.3)}
.hero-actions{margin-top:32px;display:flex;flex-wrap:wrap;gap:14px}
.hero-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:28px;color:rgba(230,237,247,0.72);font-size:13px}
.meta-badge{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:999px;background:rgba(255,255,255,0.08);border:1px solid rgba(255,255,255,0.1)}
.meta-badge svg{width:13px;height:13px;stroke:var(--primary)}
.cat-hero-visual{position:relative;width:350px;flex-shrink:0;display:flex;justify-content:center}
.device-frame{
  width:270px;height:540px;border-radius:42px;background:rgba(15,23,42,0.78);
  padding:11px;border:1px solid rgba(255,255,255,0.14);box-shadow:0 40px 70px rgba(0,0,0,0.46);
  position:relative;transform:perspective(900px) rotateY(-8deg) rotateX(3deg);
}
.device-screen{width:100%;height:100%;border-radius:32px;overflow:hidden;background:#0B1120;position:relative;border:1px solid rgba(255,255,255,0.04)}
.device-screen img{width:100%;height:100%;object-fit:cover}
.device-glow{
  position:absolute;top:18px;left:35px;right:35px;height:10px;border-radius:999px;
  background:linear-gradient(90deg,rgba(44,229,216,0.12),rgba(34,211,238,0.7),rgba(44,229,216,0.12));
  filter:blur(6px);
}

/* ========== section 基础 ========== */
.section{padding:82px 0}
.section-head{max-width:720px;margin-bottom:48px}
.section-tag{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;font-size:13px;font-weight:700;color:var(--primary);background:rgba(44,229,216,0.1);border-radius:999px;border:1px solid rgba(44,229,216,0.2)}
.section-head h2{font-size:clamp(26px,3.6vw,40px);line-height:1.3;margin:16px 0 14px;font-weight:800;letter-spacing:-0.5px}
.section-head p{color:var(--text-2);line-height:1.8;font-size:16px}

/* ====== 下载前说明：图文不对称 ====== */
.solution-grid{display:grid;grid-template-columns:5fr 7fr;gap:22px;align-items:stretch}
.solution-main{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.solution-card{background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .3s ease,border-color .3s ease}
.solution-card:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.solution-card .poster{aspect-ratio:16/10;position:relative;min-height:148px;overflow:hidden}
.solution-card .poster img{width:100%;height:100%;object-fit:cover}
.poster-mask{position:absolute;inset:0;background:linear-gradient(to top,rgba(7,13,26,0.7),rgba(7,13,26,0.02));display:flex;align-items:flex-end;padding:12px 15px}
.poster-tag{font-size:13px;font-weight:600;padding:4px 12px;border-radius:999px;background:rgba(44,229,216,0.25);color:#C3FBFA;border:1px solid rgba(44,229,216,0.3)}
.solution-body{padding:20px}
.solution-body h3{font-size:19px;font-weight:700;margin-bottom:10px}
.solution-body p{color:var(--text-2);font-size:14px;line-height:1.75;margin-bottom:16px}
.more-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-size:14px;font-weight:600;transition:gap .25s ease}
.more-arrow:hover{gap:11px}
.solution-side{padding:30px;border-radius:var(--radius-lg);background:linear-gradient(135deg,rgba(129,140,248,0.14),rgba(44,229,216,0.06));border:1px solid rgba(129,140,248,0.22);display:flex;flex-direction:column;justify-content:center}
.solution-side-title{font-size:22px;font-weight:800;margin-bottom:6px;color:#fff}
.solution-side-sub{color:var(--text-2);font-size:15px;margin-bottom:28px}
.step-mini{display:flex;gap:12px;padding:15px 0;border-bottom:1px solid rgba(255,255,255,0.08)}
.step-mini:last-child{border-bottom:none}
.node-num{flex:0 0 auto;width:30px;height:30px;border-radius:9px;background:rgba(44,229,216,0.18);border:1px solid rgba(44,229,216,0.35);color:var(--primary);font-size:13px;font-weight:800;display:flex;align-items:center;justify-content:center}
.step-mini strong{display:block;font-size:15px;color:#E9F1FA;margin-bottom:3px}
.step-mini span{font-size:13px;color:var(--text-2);line-height:1.6}

/* ====== 主下载工作区 ====== */
#download-packages{padding:80px 0}
.install-band{position:relative;background:#0D1526;border-radius:32px;padding:46px;border:1px solid rgba(129,140,248,0.14);overflow:hidden}
.install-band::before{content:'';position:absolute;top:-80px;right:-80px;width:300px;height:300px;background:radial-gradient(circle,rgba(44,229,216,0.14),transparent 70%)}
.install-band .section-prefix{position:relative}
.section-prefix{display:inline-flex;align-items:center;gap:8px;margin-bottom:10px}
.section-prefix-title{position:relative;display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:30px}
.section-prefix-title h2{font-size:30px;font-weight:800;letter-spacing:-0.4px}
.install-layout{display:grid;grid-template-columns:5fr 7fr;gap:46px}
.install-track-header{margin-bottom:42px}
.install-step-title{color:rgba(230,237,247,0.55);font-size:14px;font-weight:600}
.install-track-list{position:relative;display:flex;flex-direction:column;gap:12px}
.install-track-list::before{content:'';position:absolute;left:21px;top:28px;bottom:22px;width:1px;background:linear-gradient(to bottom,rgba(44,229,216,0.65),rgba(129,140,248,0.3))}
.step-node{position:relative;display:flex;gap:16px;padding:14px 16px 14px 0}
.step-index{
  position:relative;z-index:2;width:42px;height:42px;flex:0 0 auto;
  border-radius:15px;display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(44,229,216,0.45);background:#0D1B2E;color:var(--primary);font-weight:900;
  font-size:15px;box-shadow:0 0 20px rgba(44,229,216,0.12)
}
.step-node.current-step .step-index{background:linear-gradient(135deg,#2CE5D8,#22D3EE);color:#07251F;border-color:transparent}
.step-content{padding-top:3px}
.step-content h4{font-size:17px;font-weight:700;margin-bottom:6px}
.step-content p{color:var(--text-2);font-size:14px;line-height:1.7}

/* version board */
.version-board{position:relative}
.board-top{margin-bottom:20px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px}
.board-label{font-size:14px;color:var(--text-2)}
.offset-note{font-size:13px;color:var(--text-3);background:rgba(129,140,248,0.1);border:1px solid rgba(129,140,248,0.16);border-radius:999px;padding:5px 12px}
.version-list{display:grid;grid-template-columns:1fr;gap:12px}
.version-item{
  display:flex;align-items:center;gap:16px;padding:18px 20px;border-radius:18px;
  background:rgba(255,255,255,0.045);border:1px solid var(--line);
  transition:all .25s ease;
}
.version-item:hover{background:rgba(255,255,255,0.075);border-color:rgba(44,229,216,0.38);transform:translateX(-4px)}
.os-mark{
  width:48px;height:48px;flex:0 0 auto;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(145deg,rgba(255,255,255,0.12),rgba(255,255,255,0.03));
  border:1px solid rgba(255,255,255,0.17);font-size:10px;font-weight:900;letter-spacing:0.5px;color:#E6EDF7;
}
.os-win span,.os-mac span,.os-android span,.os-ios span{line-height:1;text-align:center}
.version-info{flex:1;min-width:0}
.version-name{display:flex;align-items:center;gap:8px;font-weight:700;font-size:16px;color:#fff;flex-wrap:wrap}
.version-name .tag-ver{font-size:11px;font-weight:700;background:rgba(245,176,74,0.15);color:var(--amber);border:1px solid rgba(245,176,74,0.3);padding:2px 8px;border-radius:4px}
.version-sub{color:var(--text-2);font-size:14px;margin-top:5px;line-height:1.5}
.security-line{
  display:flex;align-items:center;gap:8px;color:rgba(230,237,247,0.66);font-size:13px;
  margin-top:18px;padding:10px 16px;background:rgba(52,211,153,0.07);border-radius:14px;
}
.security-line svg{width:16px;height:16px;stroke:var(--success);flex-shrink:0}
.security-line strong{font-weight:600}

/* 详情双栏 */
.detail-duo{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.detail-card{background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius-lg);padding:32px;position:relative;overflow:hidden}
.detail-card::after{content:'';position:absolute;right:-40px;top:-40px;width:150px;height:150px;background:radial-gradient(circle,rgba(129,140,248,0.13),transparent 70%)}
.detail-ico{width:54px;height:54px;border-radius:16px;display:flex;align-items:center;justify-content:center;margin-bottom:20px;background:linear-gradient(135deg,rgba(44,229,216,0.2),rgba(34,211,238,0.05));border:1px solid rgba(44,229,216,0.22)}
.detail-ico svg{width:26px;height:26px;stroke:var(--primary)}
.detail-card h3{font-size:20px;font-weight:800;margin-bottom:10px}
.detail-card p{font-size:15px;line-height:1.8;color:var(--text-2)}
.check-list{margin-top:20px;display:grid;gap:12px}
.check-list li{display:flex;gap:9px;align-items:flex-start;font-size:14px;color:#C1CBDD;line-height:1.6}
.check-list li::before{content:'';width:5px;height:5px;border-radius:50%;background:var(--primary);margin-top:9px;flex-shrink:0;box-shadow:0 0 10px rgba(44,229,216,0.7)}

/* ====== 安全报告 ====== */
.safety-panel{
  position:relative;border-radius:32px;overflow:hidden;padding:64px;
  display:grid;grid-template-columns:5fr 7fr;align-items:center;gap:40px;
  background-image:url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center;
}
.safety-panel::before{content:'';position:absolute;inset:0;background:linear-gradient(110deg,rgba(6,14,27,0.97) 40%,rgba(11,17,32,0.82) 100%)}
.safety-panel>*{position:relative;z-index:2}
.safety-panel h2{font-size:30px;font-weight:800;line-height:1.35;letter-spacing:-0.5px}
.safety-panel h2 span{color:var(--primary)}
.safety-panel .safety-desc{margin-top:16px;color:var(--text-2);font-size:15px;line-height:1.85}
.safety-list{display:grid;gap:18px}
.safety-list li{display:flex;gap:14px;padding:16px 18px;margin:0;background:var(--glass);border:1px solid var(--line);border-radius:18px;align-items:flex-start;backdrop-filter:blur(6px)}
.safety-list .alert-ico{flex:0 0 auto;width:36px;height:36px;border-radius:12px;background:rgba(44,229,216,0.13);display:flex;align-items:center;justify-content:center}
.safety-list .alert-ico svg{width:18px;height:18px;stroke:var(--primary)}
.safety-list strong{display:block;font-weight:700;font-size:15px;color:#EAF3FA;margin-bottom:4px}
.safety-list p{font-size:13px;line-height:1.7;color:var(--text-2)}

/* ====== 常见问题 FAQ ====== */
.faq-wrap{max-width:920px;margin:0 auto}
.faq-item{background:var(--bg-soft);border:1px solid var(--line);border-radius:18px;margin-bottom:14px;transition:background .25s ease,border-color .25s ease}
.faq-item:hover{background:rgba(255,255,255,0.05)}
.faq-item[open]{border-color:rgba(44,229,216,0.35);background:rgba(255,255,255,0.06)}
.faq-item summary{display:flex;gap:16px;align-items:center;justify-content:space-between;cursor:pointer;list-style:none;padding:20px 22px;font-weight:600;color:var(--text);font-size:16px;line-height:1.6}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item .faq-btn-arrow{width:28px;height:28px;flex:0 0 auto;border:1px solid var(--line-strong);border-radius:8px;color:var(--primary);display:flex;align-items:center;justify-content:center;transition:transform .3s ease}
.faq-item .faq-btn-arrow svg{width:14px;height:14px;stroke:currentColor}
.faq-item[open] .faq-btn-arrow{transform:rotate(180deg);background:rgba(44,229,216,0.14)}
.faq-answer{padding:0 22px 22px;color:var(--text-2);font-size:15px;line-height:1.85}
.faq-answer strong,.faq-answer a{color:#fff}

/* ====== CTA ====== */
.cta-zone{padding:30px 0 100px}
.cta-card{
  position:relative;overflow:hidden;background:linear-gradient(110deg,var(--bg-soft),#111A35 60%,#152A45);
  border:1px solid rgba(129,140,248,0.22);border-radius:36px;padding:58px;
  display:flex;gap:32px;align-items:center;justify-content:space-between;
}
.cta-card::before{content:'';position:absolute;top:-140px;right:-40px;width:420px;height:420px;background:radial-gradient(circle,rgba(44,229,216,0.16),rgba(34,211,238,0.05) 60%,transparent);pointer-events:none}
.cta-card-content{position:relative}
.cta-card h2{font-size:30px;font-weight:800;margin-bottom:12px}
.cta-card p{color:var(--text-2);max-width:560px;margin-bottom:28px}
.cta-card .cta-btn-box{display:flex;gap:12px;flex-wrap:wrap}
.cta-side{font-size:13px;color:var(--text-3);text-align:right;line-height:1.8;flex-shrink:0;position:relative}

/* ====== 页脚 ====== */
.site-footer{background:var(--bg-deep);padding-top:68px;margin-top:20px;border-top:1px solid rgba(255,255,255,0.05)}
.footer-grid{display:grid;grid-template-columns:4fr 2fr 2fr 2fr;gap:50px;padding-bottom:42px}
.footer-logo{display:flex;align-items:center;gap:11px;font-size:21px;font-weight:800;color:#F5F8FE}
.footer-brand p{color:#64748B;font-size:14px;margin-top:18px;line-height:1.9;padding-right:35px}
.footer-col-title{font-weight:800;color:rgba(255,255,255,0.75);font-size:16px;margin-bottom:18px}
.footer-col ul li{margin-bottom:11px}
.footer-col ul a{color:#64748B;font-size:14px;transition:all .2s ease;display:inline-block}
.footer-col ul a:hover{color:var(--primary);padding-left:5px}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.07);padding:24px 0;display:flex;align-items:center;justify-content:space-between;gap:14px;color:#556483;font-size:13px;flex-wrap:wrap}
.footer-bottom .footer-secure{display:flex;align-items:center;gap:20px}

/* ====== 响应式 ====== */
@media (max-width:1160px){
  .version-list{grid-template-columns:1fr}
  .install-layout{gap:30px}
  .solution-grid{grid-template-columns:1fr;}
}
@media (max-width:1024px){
  .header-actions .header-search{display:none}
  .header-cta{display:none}
  .burger{display:flex;width:40px;height:40px;border-radius:10px;background:#F1F5F9;border:1px solid #E2E8F0;align-items:center;justify-content:center}
  .burger svg{width:19px;height:19px;stroke:#0F1729}
  .main-nav{
    position:absolute;top:72px;left:0;right:0;
    display:none;flex-direction:column;gap:6px;background:#fff;
    border-radius:0 0 18px 18px;box-shadow:0 26px 45px rgba(15,23,42,0.16);
    padding:18px 20px 26px;border-top:1px solid #E8EFF7;
  }
  .main-nav.open{display:flex}
  .nav-link{text-align:center;padding:13px 16px;font-size:16px}
  .cat-hero-inner{flex-direction:column;padding:62px 0;gap:40px}
  .cat-hero-visual{width:260px}
  .device-frame{width:230px;height:460px;transform:none}
  .cat-hero-inner{min-height:0}
  .cta-side{display:none}
  .cta-card{padding:36px}
  .safety-panel{grid-template-columns:1fr;padding:46px}
}
@media (max-width:768px){
  .wrap{padding-left:18px;padding-right:18px}
  .solution-card{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .section{padding:62px 0}
  .install-layout{grid-template-columns:1fr;gap:40px}
  .foot-grid{grid-template-columns:1fr 1fr}
  .cat-hero h1{font-size:46px}
  .version-item{flex-wrap:wrap}
  .safety-panel{padding:34px}
}
@media (max-width:560px){
  body{padding-bottom:68px}
  .brand-text{font-size:15px;font-weight:900}
  .solution-grid{grid-template-columns:1fr}
  .solution-card{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .detail-card{padding:22px}
  .cta-card{padding:28px 22px}
  .cta-card h2{font-size:24px}
  .faq-item summary{font-size:15px}
  .install-band{padding:26px 18px}
  .mobile-dock{
    display:flex;position:fixed;z-index:99;bottom:0;left:0;right:0;
    height:60px;background:rgba(9,14,28,0.94);backdrop-filter:blur(20px);
    border-top:1px solid rgba(255,255,255,0.12);
  }
  .mobile-dock a{flex:1;display:flex;flex-direction:column;align-items:center;gap:4px;font-size:11px;color:#8DA0BD}
  .mobile-dock a svg{width:20px;height:20px;stroke:#8DA0BD}
  .mobile-dock a.dock-active{color:var(--primary)}
}
.mobile-dock{display:none}
@media (min-width:561px){.mobile-dock{display:none !important}}

/* roulang page: category4 */
:root{
  --bg-deep:#0B1120;
  --bg-soft:#0F1729;
  --panel:rgba(255,255,255,.05);
  --panel-2:rgba(255,255,255,.075);
  --panel-3:rgba(13,20,36,.92);
  --primary:#2CE5D8;
  --primary-2:#22D3EE;
  --accent:#818CF8;
  --amber:#F5B04A;
  --ok:#34D399;
  --err:#FB7185;
  --text-main:#E6EDF7;
  --text-sub:#9AA8BE;
  --muted:#6B7B98;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --radius-sm:12px;
  --radius:16px;
  --radius-lg:24px;
  --pill:999px;
  --shadow:0 18px 46px rgba(0,0,0,.28);
  --navy:#081020;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  background:
    radial-gradient(circle at 12% 8%, rgba(99,102,241,.12), transparent 26%),
    radial-gradient(circle at 88% 18%, rgba(44,229,216,.08), transparent 24%),
    var(--bg-deep);
  color:var(--text-main);
  line-height:1.75;
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
button,input{font:inherit}
::selection{background:rgba(44,229,216,.3);color:#fff}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 32px}
.site-header{
  position:sticky;top:0;z-index:100;
  background:#fff;
  border-bottom:1px solid rgba(15,23,42,.08);
  box-shadow:0 6px 20px rgba(15,23,42,.05);
  color:#0B1120;
}
.nav-shell{max-width:1280px;margin:0 auto;padding:0 28px;height:72px;display:flex;align-items:center;gap:16px}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:20px;letter-spacing:.2px;color:#081020;flex-shrink:0}
.brand-icon{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(135deg,#2CE5D8,#22D3EE);box-shadow:0 8px 20px rgba(34,211,238,.22)}
.brand-icon svg{width:19px;height:19px;fill:#04231E;fill:#06241F}
.main-nav{display:flex;align-items:center;gap:5px;margin:0 auto}
.nav-link{
  font-size:15px;font-weight:600;color:#334155;padding:9px 14px;border-radius:var(--pill);
  transition:background .22s,color .22s,transform .22s;
}
.nav-link:hover{background:#F0F7F7;color:#0F766E}
.nav-link.active{background:#E4F8F6;color:#0D9488}
.header-right{display:flex;align-items:center;gap:14px;flex-shrink:0}
.search-box{
  height:40px;background:#F1F5F9;border:1px solid #E2E8F0;border-radius:var(--pill);
  display:flex;align-items:center;gap:8px;padding:0 14px;width:230px;
  transition:border-color .2s,background .2s,box-shadow .2s;
}
.search-box:focus-within{border-color:#2CE5D8;background:#fff;box-shadow:0 0 0 3px rgba(44,229,216,.18)}
.search-box svg{width:16px;height:16px;fill:#94A3B8;flex-shrink:0}
.search-box input{flex:1;border:0;outline:0;background:transparent;font-size:14px;color:#0F172A;min-width:0}
.search-box input::placeholder{color:#94A3B8}
.header-cta{
  height:40px;padding:0 20px;border-radius:var(--pill);display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#2CE5D8,#22D3EE);
  color:#062A25;font-weight:700;font-size:14px;box-shadow:0 6px 18px rgba(34,211,238,.28);
  transition:box-shadow .2s,transform .2s,opacity .2s;
}
.header-cta:hover{box-shadow:0 8px 24px rgba(34,211,238,.4);transform:translateY(-1px)}
.header-cta:active{transform:translateY(0);opacity:.85}
.nav-burger{display:none;width:42px;height:42px;border:1px solid #E2E8F0;background:#fff;border-radius:12px;align-items:center;justify-content:center;cursor:pointer}
.nav-burger svg{width:20px;height:20px;fill:#0B1120}
.mobile-panel{
  display:none;padding:12px 22px 24px;background:#fff;border-bottom:1px solid #E2E8F0;
  box-shadow:0 20px 30px rgba(15,23,42,.08);
}
.mobile-panel.open{display:block}
.mobile-panel .main-nav{flex-direction:column;align-items:stretch;margin-bottom:8px}
.mobile-panel .nav-link{padding:13px 12px;font-size:16px}
.mobile-panel .nav-link.active{background:#E4F8F6}
.mobile-search{display:flex;background:#F1F5F9;height:44px;border-radius:var(--pill);align-items:center;padding:0 16px;border:1px solid #E2E8F0}
.mobile-panel .header-cta{margin-top:10px;width:100%;height:46px}
.section{padding:86px 0}
.title-wrap{margin-bottom:32px;max-width:820px}
.section-title{
  font-size:34px;line-height:1.3;color:#F1F5F9;font-weight:800;
  display:flex;align-items:center;gap:10px;
}
.section-sub{color:var(--text-sub);font-size:17px;line-height:1.8;margin-top:12px}
.category-hero{
  position:relative;overflow:hidden;
  min-height:520px;display:flex;align-items:center;
  border-bottom:1px solid rgba(255,255,255,.06);
  background:
    linear-gradient(95deg,rgba(5,9,19,.98) 0%,rgba(8,14,30,.92) 34%,rgba(15,23,41,.8) 64%,rgba(11,25,43,.75) 100%),
    url('/assets/images/backpic/back-2.webp') center right/cover no-repeat;
}
.category-hero:after{
  content:"";position:absolute;inset:auto -5% -70% auto;width:560px;height:400px;border-radius:50%;
  background:radial-gradient(closest-side,rgba(44,229,216,.18),transparent);pointer-events:none
}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:calc(58% - 24px) calc(42% - 24px);gap:48px;align-items:center;padding-top:64px;padding-bottom:64px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;color:#BFEDF1;font-weight:600;font-size:13px;
  background:rgba(44,229,216,.09);border:1px solid rgba(44,229,216,.35);
  border-radius:var(--pill);padding:6px 14px;margin-bottom:20px;
}
.eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--primary);box-shadow:0 0 12px var(--primary)}
.hero-title{
  font-size:60px;line-height:1.12;font-weight:900;color:#fff;letter-spacing:-1px;
}
.hero-title .dot{color:var(--primary)}
.hero-desc{
  margin-top:22px;color:var(--text-sub);font-size:18px;line-height:1.85;max-width:620px;
}
.hero-points{display:grid;gap:12px;margin-top:26px}
.hero-point{display:flex;align-items:flex-start;gap:10px;color:#BAC7DC;font-size:15.5px}
.hero-point span:first-child{width:20px;height:20px;border:1px solid rgba(44,229,216,.55);border-radius:6px;display:grid;place-items:center;color:var(--primary);font-weight:800;flex-shrink:0;font-size:12px;margin-top:4px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:48px;padding:0 26px;border-radius:var(--pill);
  font-weight:700;font-size:15px;transition:transform .25s,box-shadow .25s,border-color .25s,background .25s;
}
.btn svg{width:17px;height:17px;fill:currentColor}
.btn-primary{
  background:linear-gradient(135deg,#2CE5D8,#22D3EE);
  color:#052A26;box-shadow:0 10px 24px rgba(44,229,216,.3),0 0 0 1px rgba(44,229,216,.45) inset;
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(44,229,216,.4)}
.btn-primary:active{transform:translateY(0);opacity:.85}
.btn-ghost{background:rgba(255,255,255,.07);color:#E6EDF7;border:1px solid rgba(255,255,255,.22)}
.btn-ghost:hover{background:rgba(255,255,255,.13);border-color:rgba(255,255,255,.34);transform:translateY(-2px)}
.hero-flow{
  position:relative;z-index:2;border-radius:22px;
  background:rgba(13,20,36,.55);
  backdrop-filter:blur(20px);
  border:1px solid rgba(255,255,255,.12);
  padding:22px;box-shadow:var(--shadow);
}
.flow-head{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.flow-head-dot{width:10px;height:10px;border-radius:50%;background:var(--amber);box-shadow:0 0 12px rgba(245,176,74,.7)}
.flow-head-dot:nth-child(2){background:var(--primary);animation:pulse 1.8s infinite}
.flow-head-dot:nth-child(3){background:var(--accent)}
@keyframes pulse{0%,100%{opacity:.4}50%{opacity:1}}
.flow-head-text{ font-size:14px;font-weight:700;color:#D6E2F2}
.flow-list{display:grid;gap:12px}
.flow-item{
  border:1px solid rgba(255,255,255,.1);background:rgba(255,255,255,.06);
  border-radius:14px;padding:14px 15px;
  display:flex;align-items:center;gap:13px;
}
.flow-num{width:34px;height:34px;border-radius:50%;background:rgba(44,229,216,.16);color:var(--primary);font-weight:800;display:grid;place-items:center;font-size:14px}
.flow-info strong{font-size:15px;color:#EDF3FF}
.flow-info p{font-size:13.5px;color:#94A3B8;margin-top:3px}
.route-section{position:relative}
.route-section:before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(44,229,216,.3),transparent)}
.stage-tag{
  display:inline-flex;align-items:center;gap:8px;font-weight:600;color:#5EEAD4;font-size:13px;letter-spacing:1px;margin-bottom:14px;
}
.stage-tag::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--primary)}
.timeline{position:relative;display:grid;gap:44px;margin-top:30px}
.timeline:before{content:"";position:absolute;left:44px;top:48px;bottom:36px;width:2px;background:linear-gradient(180deg,rgba(44,229,216,.65),rgba(99,102,241,.3));opacity:.7}
.timeline-item{position:relative;display:grid;grid-template-columns:90px minmax(0,1fr);gap:26px;align-items:center}
.item-dot{
  width:62px;height:62px;border-radius:50%;border:2px solid rgba(44,229,216,.55);
  display:grid;place-items:center;z-index:2;background:#0B1120;
  box-shadow:0 0 0 7px rgba(44,229,216,.08),0 0 28px rgba(44,229,216,.18);
  font-weight:900;color:var(--primary);font-size:18px;
}
.item-dot .small{font-size:10px;font-weight:700;display:block;text-align:center;color:#8CA5C4;line-height:1}
.tl-body{display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:26px;align-items:center}
.tl-card{
  background:var(--panel-3);border:1px solid rgba(255,255,255,.1);border-radius:18px;
  padding:28px 30px;transition:border-color .25s,transform .25s;box-shadow:0 10px 24px rgba(0,0,0,.16);
}
.timeline-item:hover .tl-card{border-color:rgba(44,229,216,.42);transform:translateY(-3px)}
.tl-note{display:inline-flex;align-items:center;gap:7px;font-size:13px;color:#8ACEC9;background:rgba(44,229,216,.08);border-radius:var(--pill);padding:5px 12px;margin-bottom:15px}
.tl-note svg{width:14px;height:14px;fill:currentColor}
.tl-title{font-size:23px;font-weight:800;color:#E7EEFF;line-height:1.4}
.tl-desc{margin-top:12px;color:var(--text-sub);font-size:15.5px;line-height:1.85}
.tl-media{
  overflow:hidden;border-radius:18px;aspect-ratio:4/3.4;border:1px solid rgba(255,255,255,.13);
  background:#0B1424;box-shadow:0 16px 34px rgba(0,0,0,.3);
}
.tl-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.timeline-item:hover .tl-media img{transform:scale(1.05)}
.next-step{display:flex;gap:10px;margin-top:22px;align-items:center;font-weight:700;color:var(--primary);font-size:14px;cursor:pointer}
.next-step span{transition:transform .25s}
.next-step:hover span{transform:translateX(4px)}
.deep-panel{
  border-radius:var(--radius-lg);
  background:linear-gradient(120deg,rgba(13,20,36,.95),rgba(20,30,54,.88));
  border:1px solid var(--line);
  overflow:hidden;
  display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  box-shadow:var(--shadow);
}
.deep-media{min-height:300px;position:relative;overflow:hidden;background:#0A111F}
.deep-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.7}
.deep-media:after{content:"";position:absolute;inset:0;background:linear-gradient(265deg,transparent 8%,rgba(13,20,36,.9) 100%)}
.deep-content{padding:56px 54px;position:relative;z-index:2}
.deep-list{display:grid;gap:20px;margin-top:24px}
.deep-list h3{font-size:17px;color:#DBE6F5;display:flex;align-items:center;gap:11px;font-weight:700}
.deep-list h3 em{font-style:normal;width:26px;height:26px;border-radius:8px;background:rgba(44,229,216,.14);border:1px solid rgba(44,229,216,.3);color:var(--primary);display:grid;place-items:center;font-weight:800;font-size:13px}
.deep-list p{color:var(--text-sub);font-size:14.5px;margin:6px 0 0 37px;line-height:1.75}
.small-title{color:var(--primary);font-size:13px;font-weight:600;margin-bottom:12px;letter-spacing:1.5px}
.cta-strip{
  border-radius:24px;position:relative;overflow:hidden;margin:90px 0 26px;
  background:linear-gradient(125deg,rgba(14,22,42,.95),rgba(8,16,33,.97)),url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  border:1px solid rgba(44,229,216,.22);
  box-shadow:0 0 0 1px rgba(255,255,255,.04) inset;
}
.cta-strip:after{content:"";position:absolute;right:8%;top:0;width:380px;height:380px;background:radial-gradient(circle,rgba(44,229,216,.22),transparent 68%);pointer-events:none}
.cta-flex{display:flex;align-items:center;justify-content:space-between;gap:40px;padding:46px 50px;position:relative;z-index:2}
.cta-title{font-size:32px;font-weight:900;color:#fff}
.cta-sub{color:var(--text-sub);font-size:16px;margin-top:11px;line-height:1.75}
.faq-shell{display:grid;grid-template-columns:minmax(0,.75fr) minmax(0,1.25fr);gap:56px;align-items:start}
.faq-head{position:sticky;top:120px}
.faq-list{display:grid;gap:14px}
.faq-item{
  background:rgba(13,20,36,.68);border:1px solid rgba(255,255,255,.08);
  border-radius:16px;transition:border-color .22s,background .22s;
}
.faq-item[open]{border-color:rgba(44,229,216,.35)}
.faq-item summary{
  cursor:pointer;list-style:none;display:flex;align-items:center;gap:14px;justify-content:space-between;
  font-weight:700;color:#D7E3F3;font-size:16px;padding:20px 22px;line-height:1.5;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:#fff}
.faq-arrow{flex-shrink:0;width:30px;height:30px;border-radius:50%;border:1px solid rgba(44,229,216,.3);color:var(--primary);display:grid;place-items:center;transition:transform .25s,background .25s}
.faq-arrow svg{width:14px;height:14px;fill:currentColor}
.faq-item[open] .faq-arrow{transform:rotate(180deg);background:rgba(44,229,216,.16)}
.faq-body{padding:0 22px 22px;color:var(--text-sub);font-size:15px;line-height:1.85;border-top:1px solid rgba(255,255,255,.07);padding-top:16px;margin-top:2px}
.footer-card{
  margin-top:36px;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:28px;
  background:linear-gradient(100deg,#0D1424,#111C33);border:1px solid rgba(255,255,255,.08);border-radius:22px;padding:34px;
}
.footer-card-left h3{font-size:21px}
.footer-card-left p{font-size:14.5px;color:var(--text-sub);margin-top:10px}
.footer-card-actions{display:flex;align-items:center;justify-content:flex-end;gap:14px;flex-wrap:wrap}
.site-footer{
  background:#070D19;border-top:1px solid rgba(255,255,255,.06);
  padding:62px 0 30px;margin-top:40px;color:#B8C3D6;
}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:44px;align-items:start}
.footer-logo{display:flex;align-items:center;gap:11px;font-size:20px;font-weight:800;color:#F3F7FF}
.footer-logo .brand-icon{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,#2CE5D8,#22D3EE)}
.footer-logo .brand-icon svg{width:17px;height:17px;fill:#062A26}
.footer-brand p{font-size:14px;color:#8CA0B8;line-height:1.9;margin-top:15px;max-width:350px}
.footer-col-title{color:#F1F5F9;font-size:15px;font-weight:700;margin-bottom:15px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{color:#8CA0B8;font-size:14px;transition:color .2s}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;margin-top:48px;padding-top:26px;border-top:1px solid rgba(255,255,255,.06);color:#5D708C;font-size:13px}
.footer-secure{display:flex;gap:18px}
@media(max-width:1180px){
  .hero-title{font-size:46px}
  .hero-grid{grid-template-columns:1fr 0.88fr;gap:28px}
  .tl-body{grid-template-columns:1fr 200px}
}
@media(max-width:1024px){
  .section{padding:68px 0}
  .nav-shell{padding:0 20px}
  .main-nav,.header-right .search-box{display:none}
  .nav-burger{display:inline-flex}
  .category-hero{min-height:480px}
  .hero-grid{grid-template-columns:1fr;padding-top:52px;padding-bottom:52px}
  .hero-flow{max-width:600px;margin-top:8px}
  .timeline:before{left:32px}
  .timeline-item{grid-template-columns:66px minmax(0,1fr);gap:22px}
  .item-dot{width:52px;height:52px;font-size:15px}
  .tl-body{grid-template-columns:1fr;gap:16px}
  .tl-media{aspect-ratio:auto;height:220px}
  .cta-flex{padding:40px 34px;flex-direction:column;align-items:flex-start}
  .faq-shell{grid-template-columns:1fr}
  .faq-head{position:static}
  .footer-grid{grid-template-columns:1fr 1fr}
  .deep-panel{grid-template-columns:1fr}
  .deep-media{display:none}
  .deep-content{padding:44px 36px}
  .footer-card{grid-template-columns:1fr}
  .footer-card-actions{justify-content:flex-start}
}
@media(max-width:640px){
  .container{padding:0 20px}
  .site-header .container,.nav-shell{padding:0 16px}
  .brand{font-size:17px;gap:8px}
  .brand-icon{width:34px;height:34px}
  .header-cta{height:38px;font-size:13px;padding:0 14px}
  .category-hero{min-height:auto}
  .hero-grid{padding-top:36px;padding-bottom:36px}
  .hero-title{font-size:38px}
  .hero-desc{font-size:16px}
  .section{padding:54px 0}
  .section-title{font-size:28px}
  .timeline{gap:36px}
  .timeline:before{left:22px}
  .timeline-item{grid-template-columns:50px minmax(0,1fr);gap:16px}
  .item-dot{width:44px;height:44px;font-size:13px}
  .tl-card{padding:20px}
  .tl-title{font-size:20px}
  .cta-strip{margin-top:60px}
  .cta-title{font-size:27px}
  .cta-flex{padding:34px 24px}
  .deep-content{padding:32px 22px}
  .footer-grid{grid-template-columns:1fr;row-gap:30px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .footer-secure{flex-direction:column;gap:5px}
  .faq-body{padding:14px 0 18px}
  .footer-card{padding:26px 22px}
}