/* roulang page: index */
:root {
  --bg: #0C1115;
  --bg-2: #121922;
  --surface: #16202B;
  --surface-2: #1B2836;
  --surface-3: #1E2C3A;
  --text: #EFF6FF;
  --text-sub: #93A5B8;
  --text-mute: #6E8298;
  --brand: #19D3B3;
  --brand-hover: #33E6C8;
  --brand-deep: #0E8F7B;
  --accent: #7D6CFF;
  --accent-soft: rgba(125, 108, 255, 0.16);
  --danger: #FF5D6C;
  --gold: #F2C25C;
  --line: rgba(255, 255, 255, 0.09);
  --line-light: rgba(255, 255, 255, 0.14);
  --r-lg: 16px;
  --r-md: 10px;
  --r-sm: 8px;
  --shadow-1: 0 4px 20px rgba(0, 0, 0, 0.22);
  --shadow-2: 0 16px 40px rgba(0, 0, 0, 0.35), 0 0 0 1px rgba(255, 255, 255, 0.06);
  --font-main: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei UI", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-main);
  font-weight: 400;
  line-height: 1.7;
  font-feature-settings: "tnum";
  overflow-x: hidden;
}

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

a {
  color: var(--brand);
  text-decoration: none;
  transition: color .2s ease, background-color .2s ease, border-color .2s ease, box-shadow .2s ease;
}

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

.container {
  max-width: 1240px;
  padding-left: 22px;
  padding-right: 22px;
}

.section {
  padding: 96px 0;
}

.section-inverse {
  background: var(--bg-2);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: var(--r-sm);
  font-weight: 700;
  transition: all .22s ease;
  border: 1px solid transparent;
}

.btn-brand {
  background: var(--brand);
  color: #062920;
  border-color: var(--brand);
}

.btn-brand:hover {
  background: var(--brand-hover);
  border-color: var(--brand-hover);
  color: #031D18;
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(25, 211, 179, 0.22);
}

.btn-line {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--text);
}

.btn-line:hover {
  border-color: var(--brand);
  color: var(--brand);
  transform: translateY(-2px);
  background: rgba(25, 211, 179, 0.06);
}

.btn-accent {
  background: linear-gradient(135deg, var(--accent), #5B4DE8);
  border-color: transparent;
  color: #FFFFFF;
}

.btn-accent:hover {
  background: linear-gradient(135deg, #8D7DFF, #6656F2);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(125, 108, 255, .26);
}

.btn-lg {
  min-height: 48px;
  padding: 0 26px;
  font-size: 15px;
}

.text-brand {
  color: var(--brand) !important;
}

.text-gold {
  color: var(--gold) !important;
}

.section-head {
  margin-bottom: 40px;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(25, 211, 179, .1);
  border: 1px solid rgba(25, 211, 179, .18);
  color: var(--brand);
  font-size: 13px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 999px;
  margin-bottom: 14px;
  letter-spacing: .02em;
}

.section-title {
  font-size: clamp(26px, 3.5vw, 38px);
  line-height: 1.2;
  font-weight: 900;
  margin: 0 0 14px;
}

.section-desc {
  color: var(--text-sub);
  font-size: 16px;
  max-width: 720px;
  margin-bottom: 0;
}

header {
  position: relative;
  z-index: 50;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(12, 17, 21, .84);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(25, 211, 179, .24);
}

.announce-bar {
  background: linear-gradient(90deg, rgba(25, 211, 179, .12), rgba(125, 108, 255, .1), transparent);
  border-bottom: 1px solid rgba(255, 255, 255, .05);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 8px 44px 8px 18px;
  color: #D6E6F5;
  font-size: 13px;
  position: relative;
}

.announce-bar i {
  color: var(--brand);
}

.announce-bar .announce-close {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 26px;
  height: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: transparent;
  border: 0;
  color: rgba(255, 255, 255, .6);
  cursor: pointer;
  transition: all .2s;
}

.announce-bar .announce-close:hover {
  color: #fff;
  background: rgba(255, 255, 255, .08);
}

.navbar {
  padding: 12px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-right: 26px;
  min-width: max-content;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--brand), #14B79E);
  color: #06251D;
  font-size: 15px;
  font-weight: 900;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  letter-spacing: .02em;
  box-shadow: 0 8px 24px rgba(25, 211, 179, .24);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand-text strong {
  color: var(--text);
  font-size: 20px;
  font-weight: 900;
  letter-spacing: .01em;
  white-space: nowrap;
}

.brand-text small {
  color: var(--text-sub);
  font-size: 12px;
  margin-top: 3px;
  letter-spacing: .14em;
}

.navbar .navbar-nav {
  gap: 2px;
}

.nav-item .nav-link {
  color: #BCD0E3;
  font-size: 15px;
  font-weight: 600;
  padding: 10px 14px !important;
  border-radius: 8px;
  position: relative;
  transition: all .2s;
}

.nav-item .nav-link:hover {
  color: var(--brand);
  background: rgba(25, 211, 179, .06);
}

.nav-item .nav-link.active {
  color: var(--brand) !important;
  background: rgba(25, 211, 179, .08);
}

.nav-item .nav-link.active::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 2px;
  height: 2px;
  border-radius: 99px;
  background: var(--brand);
  box-shadow: 0 0 12px rgba(25, 211, 179, .46);
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: 18px;
}

.nav-login {
  color: #C9D9E9;
  font-weight: 600;
  padding: 8px 8px;
  font-size: 14px;
}

.nav-login:hover {
  color: var(--brand);
}

.nav-register {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--bg);
  background: var(--brand);
  border-radius: 8px;
  padding: 8px 18px;
  font-weight: 700;
  font-size: 14px;
  transition: all .2s;
}

.nav-register:hover {
  background: var(--brand-hover);
  color: #041D16;
  transform: translateY(-1px);
}

.navbar-toggler {
  border: 1px solid var(--line-light);
  background: transparent;
  color: var(--text);
  padding: 8px 12px;
  border-radius: 8px;
}

.navbar-toggler:focus {
  box-shadow: none;
  border-color: var(--brand);
}

.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg viewBox='0 0 30 30' xmlns='http://www.w3.org/2000/svg'%3e%3cpath stroke='rgba(255,255,255,.7)' stroke-width='2' stroke-linecap='round' stroke-miterlimit='10' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.hero {
  position: relative;
  padding: 112px 0 118px;
  overflow: hidden;
  background-image: linear-gradient(120deg, rgba(12, 17, 21, 1) 0%, rgba(12, 17, 21, 0.96) 28%, rgba(125, 108, 255, 0.1) 100%), url("/assets/images/backpic/back-1.png");
  background-size: cover;
  background-position: center 36%;
  border-bottom: 1px solid var(--line);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 82% 18%, rgba(125, 108, 255, 0.16), transparent 32%), radial-gradient(circle at 92% 72%, rgba(25, 211, 179, 0.11), transparent 28%);
  pointer-events: none;
}

.hero-bg-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .24;
  z-index: 0;
}

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

.hero-status {
  display: inline-block;
  padding: 6px 15px 6px 10px;
  background: rgba(12, 17, 21, .6);
  border: 1px solid rgba(25, 211, 179, .38);
  border-radius: 999px;
  font-size: 13px;
  color: #C8F6EC;
  margin-bottom: 28px;
  backdrop-filter: blur(8px);
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--brand);
  display: inline-block;
  margin-right: 7px;
  box-shadow: 0 0 0 0 rgba(25, 211, 179, 0.5);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(25, 211, 179, .5);
  }
  70% {
    box-shadow: 0 0 0 8px rgba(25, 211, 179, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(25, 211, 179, 0);
  }
}

.hero h1 {
  font-size: clamp(34px, 6vw, 58px);
  font-weight: 900;
  line-height: 1.12;
  margin: 0 0 22px;
  letter-spacing: .012em;
}

.text-em {
  color: var(--brand);
}

.hero-sub {
  font-size: 17px;
  line-height: 1.8;
  color: #B7C9DB;
  max-width: 570px;
  margin-bottom: 34px;
}

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

.hero-visual {
  position: relative;
  margin-left: 20px;
  z-index: 1;
}

.hero-main-img {
  border-radius: 20px;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 1px solid rgba(255, 255, 255, .12);
  box-shadow: 0 20px 60px rgba(0, 0, 0, .42);
}

.float-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(18, 25, 34, .86);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 9px 14px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, .14);
  box-shadow: var(--shadow-1);
  animation: floatMove 4s ease-in-out infinite;
}

.float-card strong {
  font-size: 14px;
  display: block;
  color: #EAF3FB;
  line-height: 1.3;
  white-space: nowrap;
}

.float-card small {
  font-size: 12px;
  color: var(--text-sub);
  display: block;
  white-space: nowrap;
}

.float-card-1 {
  left: -38px;
  bottom: 38px;
  animation-delay: 0;
}

.float-card-2 {
  right: -16px;
  top: 22px;
  animation-delay: 1.2s;
}

.float-card .mini-icon {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(25, 211, 179, .14);
  color: var(--brand);
  font-size: 17px;
}

.float-card-2 .mini-icon {
  background: rgba(125, 108, 255, .16);
  color: var(--accent);
}

@keyframes floatMove {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-8px);
  }
}

.metric-strip {
  padding: 0;
  border-bottom: 1px solid var(--line);
  background: var(--bg-2);
}

.metric-strip .container {
  border-left: 1px solid var(--line);
  border-right: 1px solid var(--line);
}

.metric-box {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 30px 20px;
  border-right: 1px solid var(--line);
}

.metric-box:first-child {
  border-left: 1px solid var(--line);
}

.metric-box i {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(25, 211, 179, .1);
  color: var(--brand);
  font-size: 20px;
  flex: none;
}

.metric-box strong {
  font-size: 22px;
  font-weight: 900;
  display: block;
  color: var(--text);
  line-height: 1.1;
}

.metric-box span {
  color: var(--text-sub);
  font-size: 13px;
  display: block;
  margin-top: 2px;
  line-height: 1.5;
}

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

.section-head-extra {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 16px;
}

.section-more {
  color: var(--text-sub);
  font-size: 14px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border-bottom: 1px dashed transparent;
  transition: all .2s;
}

.section-more:hover {
  color: var(--brand);
  border-color: var(--brand);
}

.news-feature {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  height: 100%;
  display: block;
  transition: all .25s ease;
  box-shadow: var(--shadow-1);
}

.news-feature:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-2);
  border-color: rgba(25, 211, 179, .35);
}

.news-feature-img {
  height: 235px;
  background: linear-gradient(135deg, #182B37, #101B28);
  position: relative;
  background-size: cover;
  background-position: center;
}

.news-feature-img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(12, 17, 21, .75), transparent 58%);
}

.news-feature-img .img-tag {
  position: absolute;
  left: 16px;
  bottom: 16px;
  z-index: 2;
  background: rgba(25, 211, 179, .14);
  border: 1px solid rgba(25, 211, 179, .4);
  color: var(--brand);
  font-size: 13px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
  backdrop-filter: blur(6px);
}

.news-feature-body {
  padding: 24px 26px 26px;
}

.news-feature-body h3 {
  font-size: 22px;
  font-weight: 800;
  line-height: 1.45;
  margin: 10px 0 12px;
  transition: color .2s;
}

.news-feature:hover h3 {
  color: var(--brand);
}

.news-feature-body p {
  color: var(--text-sub);
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 18px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

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

.news-meta .date {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.news-more-link {
  margin-top: 8px;
  color: var(--brand);
  font-size: 14px;
  font-weight: 700;
}

.news-grid-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 18px;
  transition: all .25s;
  box-shadow: 0 2px 10px rgba(0, 0, 0, .18);
}

.news-grid-card:hover {
  background: var(--surface-2);
  transform: translateY(-4px);
  border-color: rgba(25, 211, 179, .5);
  box-shadow: var(--shadow-2);
}

.news-grid-card .tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--brand);
  background: rgba(25, 211, 179, .1);
  font-size: 12px;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: 999px;
  width: max-content;
  margin-bottom: 12px;
}

.news-grid-card h3 {
  font-size: 16px;
  line-height: 1.6;
  font-weight: 700;
  color: #DCEBF7;
  margin: 0 0 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-grid-card p {
  color: var(--text-sub);
  font-size: 13px;
  line-height: 1.6;
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-grid-card .news-meta {
  margin-top: auto;
  font-size: 12px;
  color: var(--text-mute);
}

.news-mini-list {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
  transition: border-color .2s;
}

.news-mini-list:hover {
  border-color: var(--brand);
}

.news-mini-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 15px;
  padding: 16px 18px;
  color: var(--text);
  border-bottom: 1px solid var(--line);
  transition: background .2s;
}

.news-mini-list a:last-child {
  border-bottom: 0;
}

.news-mini-list a:hover {
  background: var(--surface-2);
}

.news-mini-list .mini-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 600;
  color: #DDEAF5;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.news-mini-list .mini-date {
  color: var(--text-mute);
  font-size: 12px;
  flex: none;
}

.empty-layout {
  border: 1px dashed rgba(255, 255, 255, .16);
  border-radius: var(--r-lg);
  min-height: 180px;
  background: rgba(255, 255, 255, .02);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 10px;
  color: var(--text-sub);
}

.empty-layout i {
  font-size: 28px;
  opacity: .5;
}

.compare-section {
  background: var(--bg-2);
  position: relative;
}

.compare-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 15% 25%, rgba(125, 108, 255, .08), transparent 45%);
  pointer-events: none;
}

.table-shell {
  background: var(--surface);
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  overflow: auto;
  box-shadow: var(--shadow-1);
}

.table-shell table {
  width: 100%;
  min-width: 800px;
  border-collapse: separate;
  border-spacing: 0;
  margin: 0;
  background: transparent;
}

.table-shell th,
.table-shell td {
  padding: 18px 16px;
  text-align: left;
  border-bottom: 1px solid rgba(255, 255, 255, .06);
  vertical-align: middle;
  color: var(--text-sub);
  font-size: 14px;
  background: transparent;
}

.table-shell tr:last-child td {
  border-bottom: 0;
}

.table-shell thead th {
  color: var(--text);
  font-size: 15px;
  font-weight: 800;
  background: var(--surface-2);
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}

.table-shell thead th i {
  color: var(--brand);
  margin-right: 6px;
}

.tbl-primary-col,
.table-shell .tbl-primary-col {
  background: linear-gradient(180deg, rgba(125, 108, 255, .2), rgba(125, 108, 255, .05));
  color: #F0EEFF;
  font-weight: 500;
}

.table-shell thead .tbl-primary-col {
  background: var(--surface-2);
}

.pop-tag {
  display: inline-block;
  background: linear-gradient(135deg, var(--accent), #6654F0);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 10px;
  border-radius: 999px;
  margin-left: 6px;
  letter-spacing: .04em;
}

.check-icon {
  color: var(--brand);
}

.minus-icon {
  color: #4b5d6e;
}

.vip-path {
  padding: 96px 0;
  background: var(--bg);
}

.path-wrap {
  position: relative;
  margin-top: 36px;
}

.path-line {
  position: absolute;
  top: 66px;
  left: 5%;
  right: 5%;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(25, 211, 179, .35), rgba(125, 108, 255, .5), rgba(242, 194, 92, .45), transparent);
  border-radius: 99px;
}

.vip-level {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 24px 20px;
  transition: all .25s;
  z-index: 1;
}

.vip-level:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-2);
}

.vip-level .lv-dot {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(255, 255, 255, .08), rgba(255, 255, 255, .02));
  border: 1px solid rgba(255, 255, 255, .12);
  font-size: 24px;
  color: var(--text);
  margin-bottom: 18px;
}

.vip-level .lv-dot.gold {
  color: var(--gold);
}

.vip-level .lv-dot.purple {
  color: var(--accent);
}

.vip-level .lv-dot.green {
  color: var(--brand);
}

.vip-level h3 {
  font-size: 18px;
  font-weight: 800;
  margin-bottom: 6px;
}

.vip-level p {
  color: var(--text-sub);
  font-size: 13px;
  line-height: 1.8;
  margin-bottom: 14px;
}

.vip-level .feature-item {
  display: flex;
  align-items: center;
  gap: 7px;
  color: #B8CADE;
  font-size: 13px;
  margin-bottom: 6px;
}

.vip-level .feature-item i {
  color: var(--brand);
  font-size: 12px;
}

.vip-level.hot-level {
  border-color: rgba(125, 108, 255, .5);
  box-shadow: 0 0 0 1px rgba(125, 108, 255, .1), 0 12px 36px rgba(0, 0, 0, .25);
}

.hot-ribbon {
  position: absolute;
  top: -10px;
  right: 14px;
  background: linear-gradient(135deg, var(--gold), #dda63f);
  color: #241F08;
  border-radius: 999px;
  padding: 3px 12px;
  font-size: 12px;
  font-weight: 800;
}

.preview-section {
  background: var(--bg-2);
}

.preview-section .section-title {
  margin-bottom: 8px;
}

.preview-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  transition: all .28s;
  box-shadow: var(--shadow-1);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.preview-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-2);
}

.preview-card.featured {
  transform: translateY(-10px);
  border-color: rgba(125, 108, 255, .55);
}

.preview-card.featured:hover {
  transform: translateY(-14px);
}

.preview-img {
  position: relative;
  height: 175px;
  background-size: cover;
  background-position: center;
}

.preview-img .lock-status {
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(12, 17, 21, .65);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, .15);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  border-radius: 999px;
  padding: 5px 12px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.preview-card-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
  position: relative;
}

.preview-card-body h3 {
  font-size: 17px;
  font-weight: 800;
  line-height: 1.55;
  margin-bottom: 6px;
}

.preview-card-body p {
  color: var(--text-sub);
  font-size: 14px;
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.preview-lock-layer {
  margin-top: 14px;
  background: rgba(255, 255, 255, .035);
  border: 1px dashed rgba(255, 255, 255, .16);
  border-radius: 10px;
  padding: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-sub);
  font-size: 13px;
}

.preview-lock-layer i {
  color: var(--gold);
  font-size: 17px;
  flex: none;
}

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

.faq-list {
  max-width: 880px;
  margin: 0 auto;
}

.accordion-item {
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--line);
  border-radius: 0 !important;
}

.accordion-button {
  background: transparent;
  color: #DBE8F4;
  font-size: 16px;
  font-weight: 600;
  padding: 22px 8px;
  box-shadow: none !important;
  position: relative;
  border-radius: 0 !important;
}

.accordion-button:hover {
  color: var(--brand);
}

.accordion-button::after {
  background-image: none;
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  content: "\2b";
  color: var(--brand);
  width: 20px;
  height: 20px;
  font-size: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform .25s ease;
}

.accordion-button:not(.collapsed)::after {
  transform: rotate(45deg);
  background-image: none;
  color: var(--brand);
}

.accordion-button:not(.collapsed) {
  background: transparent;
  color: var(--brand);
}

.accordion-body {
  color: var(--text-sub);
  font-size: 15px;
  line-height: 1.9;
  padding: 0 22px 24px 8px;
}

.cta-panel {
  background: var(--bg);
  padding: 96px 0;
}

.cta-card {
  position: relative;
  background: linear-gradient(115deg, #0C151C, #172330), url("/assets/images/backpic/back-3.webp");
  background-size: cover;
  background-position: center;
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, .12);
  padding: 60px 50px;
  overflow: hidden;
  box-shadow: var(--shadow-1);
}

.cta-card::before {
  content: "";
  position: absolute;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  right: -70px;
  top: -120px;
  background: radial-gradient(circle, rgba(25, 211, 179, .2), transparent 70%);
}

.cta-card::after {
  content: "";
  position: absolute;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  left: -50px;
  bottom: -140px;
  background: radial-gradient(circle, rgba(125, 108, 255, .25), transparent 70%);
}

.cta-card .inner {
  position: relative;
  z-index: 2;
}

.cta-card h2 {
  font-size: clamp(26px, 3.8vw, 38px);
  font-weight: 900;
  line-height: 1.25;
  margin-bottom: 16px;
}

.cta-card p {
  color: var(--text-sub);
  font-size: 16px;
  max-width: 700px;
  margin-bottom: 28px;
}

footer {
  background: var(--bg-2);
  border-top: 1px solid var(--line);
}

.footer-main {
  padding: 66px 0 30px;
}

.footer-brand {
  font-size: 20px;
  font-weight: 900;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  margin-bottom: 16px;
}

.footer-brand .fbadge {
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--brand), #10C9A6);
  color: #052720;
  font-size: 15px;
  font-weight: 900;
}

.footer-desc {
  color: var(--text-sub);
  font-size: 14px;
  line-height: 1.85;
  max-width: 330px;
}

.footer-col-title {
  color: #E7F0F8;
  font-size: 16px;
  font-weight: 800;
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 10px;
}

.footer-col-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 28px;
  height: 2px;
  background: var(--brand);
  border-radius: 99px;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  color: #A8BAD0;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all .2s;
}

.footer-links a:hover {
  color: var(--brand);
  padding-left: 4px;
}

.footer-contact-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
  color: #A8BAD0;
  font-size: 14px;
}

.footer-contact-list li {
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-contact-list i {
  color: var(--brand);
  width: 20px;
  text-align: center;
}

.footer-bottom {
  border-top: 1px solid var(--line);
  padding: 20px 0;
  color: #6E8298;
  font-size: 13px;
}

@media (max-width: 1199.98px) {
  .hero {
    padding: 80px 0;
  }
  .hero-visual {
    margin-left: 0;
  }
  .float-card-1 {
    left: -10px;
  }
  .float-card-2 {
    right: 0;
  }
  .metric-box {
    padding: 26px 14px;
  }
  .metric-box strong {
    font-size: 19px;
  }
  .metric-box span {
    font-size: 12px;
  }
}

@media (max-width: 991.98px) {
  .section {
    padding: 64px 0;
  }
  .navbar-collapse {
    background: var(--bg);
    border: 1px solid var(--line);
    border-radius: var(--r-md);
    padding: 14px 10px;
    margin-top: 12px;
    box-shadow: var(--shadow-2);
  }
  .nav-item .nav-link {
    padding: 12px 14px;
  }
  .nav-cta {
    margin-left: 0;
    padding-top: 12px;
    border-top: 1px solid var(--line);
  }
  .brand-text strong {
    font-size: 18px;
  }
  .hero {
    padding: 62px 0;
  }
  .hero h1 {
    font-size: 38px;
  }
  .hero-visual {
    margin-top: 10px;
  }
  .float-card-1 {
    left: 8px;
  }
  .metric-strip .row {
    --bs-gutter-x: 0;
  }
  .metric-box {
    border-right: 0;
    border-bottom: 1px solid var(--line);
    border-left: 1px solid var(--line);
    padding: 22px 14px;
  }
  .metric-box:first-child {
    border-left: 0;
  }
  .section-head-extra {
    align-items: flex-start;
  }
  .vip-level.hot-level {
    transform: scale(1.02);
  }
  .path-line {
    display: none;
  }
}

@media (max-width: 767.98px) {
  .announce-bar {
    justify-content: flex-start;
    font-size: 12px;
    padding-left: 14px;
  }
  .brand-mark {
    width: 38px;
    height: 38px;
    border-radius: 10px;
  }
  .brand-text strong {
    font-size: 17px;
  }
  .brand-text small {
    display: none;
  }
  .hero h1 {
    font-size: 30px;
  }
  .hero-sub {
    font-size: 15px;
  }
  .btn-lg {
    min-height: 44px;
    font-size: 14px;
    padding: 0 18px;
  }
  .hero-actions {
    gap: 10px;
  }
  .float-card {
    display: none;
  }
  .metric-box {
    border-bottom: 1px solid var(--line);
  }
  .section-title {
    font-size: 25px;
  }
  .news-feature-body h3 {
    font-size: 18px;
  }
  .news-feature-img {
    height: 180px;
  }
  .cta-card {
    padding: 34px 22px;
    border-radius: 18px;
  }
  .cta-card h2 {
    font-size: 25px;
  }
  .accordion-button {
    font-size: 15px;
    padding-left: 0;
    padding-right: 0;
  }
  .accordion-body {
    padding-left: 2px;
    font-size: 14px;
  }
  .footer-main {
    padding-top: 46px;
  }
  .footer-col-title {
    margin-top: 16px;
  }
}

@media (max-width: 520px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }
  .hero h1 {
    font-size: 26px;
  }
  .hero-status {
    font-size: 12px;
  }
  .section-desc {
    font-size: 14px;
  }
  .section-tag {
    font-size: 12px;
  }
  .table-shell th,
  .table-shell td {
    padding: 14px 10px;
    font-size: 13px;
    white-space: nowrap;
  }
  .vip-level {
    padding: 20px 16px;
  }
  .preview-card.featured {
    transform: none;
  }
  .cta-card p {
    font-size: 14px;
  }
  .brand {
    gap: 8px;
  }
  .brand-text strong {
    font-size: 15px;
  }
}

/* roulang page: article */
:root {
  --bg:#0c1115;
  --bg-deep:#0a0e12;
  --bg-2:#121922;
  --panel:#16202b;
  --panel-2:#1b2836;
  --line:rgba(255,255,255,.09);
  --line-light:rgba(255,255,255,.14);
  --text:#eff6ff;
  --muted:#93a5b8;
  --primary:#19d3b3;
  --primary-2:#23e6c3;
  --secondary:#7d6cff;
  --danger:#ff5d6c;
  --gold:#f2c25c;
  --radius-lg:16px;
  --radius:10px;
  --radius-sm:8px;
  --shadow:0 4px 20px rgba(0,0,0,.2);
  --shadow-lg:0 16px 40px rgba(0,0,0,.35),0 0 0 1px rgba(255,255,255,.06);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei UI","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  font-feature-settings:"tnum";
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none;transition:color .2s ease}
img{max-width:100%;display:block}
button{font-family:inherit}
.container{max-width:1240px}
.text-muted-soft{color:var(--muted)}
.bg-deep{background:var(--bg-deep)}

/* 按钮体系 */
.btn{
  border-radius:var(--radius-sm);
  font-weight:700;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 22px;
  border:1px solid transparent;
  transition:all .25s ease;
  letter-spacing:.01em;
}
.btn i{font-size:.92em}
.btn-primary{
  background:var(--primary);
  border-color:var(--primary);
  color:#0c1115;
}
.btn-primary:hover,.btn-primary:focus{
  background:var(--primary-2);
  border-color:var(--primary-2);
  color:#0c1115;
  transform:translateY(-2px);
  box-shadow:0 10px 24px rgba(25,211,179,.22);
}
.btn-outline-light{
  border-color:var(--line-light);
  color:var(--text);
  background:transparent;
}
.btn-outline-light:hover{
  border-color:var(--primary);
  color:var(--primary);
  transform:translateY(-2px);
}
.btn-purple{
  background:linear-gradient(135deg,#7d6cff,#5b4ae0);
  border-color:transparent;
  color:#fff;
}
.btn-purple:hover{
  filter:brightness(1.08);
  transform:translateY(-2px);
  box-shadow:0 10px 26px rgba(125,108,255,.25);
}
.btn-ghost{
  background:rgba(255,255,255,.05);
  border:1px solid var(--line-light);
  color:var(--text);
}
.btn-ghost:hover{
  background:rgba(255,255,255,.1);
  color:var(--text);
  transform:translateY(-2px);
}
.btn-lg{padding:14px 30px;font-size:1rem}

.btn:focus-visible,.nav-link:focus-visible,a:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:3px;
  border-radius:4px;
}

/* 公告栏 */
.announce-bar{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:14px;
  background:linear-gradient(90deg,rgba(25,211,179,.16),rgba(125,108,255,.16));
  color:#d7ffff;
  font-size:13px;
  padding:9px 18px;
  border-bottom:1px solid rgba(25,211,179,.22);
  position:relative;
  text-align:center;
}
.announce-bar i{color:var(--primary)}
.announce-bar .announce-close{
  position:absolute;
  right:16px;
  top:50%;
  transform:translateY(-50%);
  background:transparent;
  border:none;
  color:rgba(255,255,255,.65);
  width:28px;
  height:28px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:6px;
  transition:.2s;
}
.announce-bar .announce-close:hover{background:rgba(255,255,255,.08);color:#fff}

/* 导航 */
.site-header{
  position:sticky;
  top:0;
  z-index:1000;
  background:rgba(12,17,21,.82);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(25,211,179,.3);
}
.navbar{
  padding:0;
  background:transparent;
  --bs-navbar-color:var(--muted);
  --bs-navbar-hover-color:var(--text);
  --bs-navbar-active-color:var(--text);
}
.navbar .container{min-height:76px;flex-wrap:wrap}
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  margin-right:28px;
  padding:8px 0;
}
.brand-mark{
  width:44px;
  height:44px;
  border-radius:12px;
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-weight:900;
  font-size:15px;
  color:#0c1115;
  letter-spacing:.02em;
  box-shadow:0 6px 20px rgba(25,211,179,.24);
  flex-shrink:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{font-size:18px;font-weight:800;color:var(--text);letter-spacing:.01em}
.brand-text small{font-size:11px;color:var(--muted);margin-top:3px;letter-spacing:.05em}
.navbar .navbar-nav{gap:4px;align-items:center;margin-left:8px}
.navbar .nav-link{
  padding:10px 15px;
  font-size:15px;
  font-weight:600;
  border-radius:8px;
  color:var(--muted);
  position:relative;
  transition:all .2s ease;
}
.navbar .nav-link::after{
  content:"";
  position:absolute;
  left:15px;
  right:15px;
  bottom:2px;
  height:2px;
  background:var(--primary);
  border-radius:2px;
  transform:scaleX(0);
  opacity:0;
  transition:transform .23s ease,opacity .23s ease;
}
.navbar .nav-link:hover{
  color:var(--text);
}
.navbar .nav-link:hover::after{
  transform:scaleX(1);
  opacity:.75;
}
.navbar .nav-link.active{
  color:#fff;
  background:rgba(25,211,179,.08);
}
.navbar .nav-link.active::after{
  transform:scaleX(1);
  opacity:1;
}
.nav-cta{
  display:flex;
  align-items:center;
  gap:10px;
  margin-left:12px;
}
.nav-login{
  font-size:14px;
  font-weight:600;
  color:var(--muted);
  padding:8px 12px;
  border-radius:8px;
}
.nav-login:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-register{
  font-size:14px;
  font-weight:700;
  padding:9px 18px;
  border-radius:8px;
  color:#0c1115;
  background:var(--primary);
  transition:all .22s ease;
}
.nav-register:hover{
  background:var(--primary-2);
  color:#0c1115;
  transform:translateY(-1px);
  box-shadow:0 8px 20px rgba(25,211,179,.2);
}
.navbar-toggler{
  border:1px solid var(--line-light);
  border-radius:8px;
  padding:8px 10px;
  background:rgba(255,255,255,.03);
}
.navbar-toggler:focus{box-shadow:0 0 0 4px rgba(25,211,179,.15)}
.navbar-toggler-icon{
  background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255,255,255,.85)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
  width:1.25em;
  height:1.25em;
}

/* ============ 文章详情页 ============ */
.article-banner{
  position:relative;
  padding:72px 0 64px;
  background:
    linear-gradient(115deg,rgba(12,17,21,.97) 15%,rgba(18,25,34,.9) 50%,rgba(18,25,34,.72)),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.article-banner .container{position:relative;z-index:3}
.breadcrumb-line{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  color:var(--muted);
  margin-bottom:24px;
  flex-wrap:wrap;
}
.breadcrumb-line a{
  color:rgba(255,255,255,.68);
  padding:3px 0;
}
.breadcrumb-line a:hover{color:var(--primary)}
.breadcrumb-line .sep{opacity:.45}
.crumb-current{
  color:var(--text);
  max-width:360px;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.article-banner h1{
  font-size:clamp(28px,4vw,42px);
  line-height:1.22;
  font-weight:900;
  color:#fff;
  margin:0 0 20px;
  max-width:920px;
  letter-spacing:-.01em;
}
.article-banner .lead-text{
  color:var(--muted);
  font-size:16px;
  line-height:1.9;
  max-width:760px;
  margin-bottom:22px;
}
.article-meta{
  display:flex;
  align-items:center;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--muted);
}
.meta-item{
  display:inline-flex;
  align-items:center;
  gap:7px;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  border-radius:999px;
  padding:6px 13px;
}
.meta-item i{color:var(--primary)}
.meta-item .cat-dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--secondary);
  display:inline-block;
  box-shadow:0 0 10px rgba(125,108,255,.6);
}
.banner-glow{
  position:absolute;
  width:430px;height:430px;
  right:-120px;top:-130px;
  background:radial-gradient(circle,rgba(25,211,179,.2),transparent 60%);
  filter:blur(20px);
  pointer-events:none;
  z-index:1;
}

.article-body-section{
  background:var(--bg);
  padding:56px 0 72px;
}
.article-layout{
  position:relative;
  display:grid;
  grid-template-columns:1fr;
  gap:32px;
}
.article-main-col{
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:clamp(22px,4vw,48px);
  box-shadow:var(--shadow);
  position:relative;
  overflow:hidden;
}
.article-main-col::before{
  content:"";
  position:absolute;
  left:0;top:0;
  width:100%;
  height:3px;
  background:linear-gradient(90deg,var(--primary),var(--secondary) 60%,transparent);
}
.article-summary{
  padding:18px 22px;
  border-left:4px solid var(--primary);
  background:rgba(25,211,179,.06);
  border-radius:0 10px 10px 0;
  color:#c6d8e8;
  font-size:15px;
  line-height:1.9;
  margin-bottom:38px;
}

.article-prose{
  font-size:16px;
  line-height:1.95;
  color:#d7e4ee;
  word-break:break-word;
}
.article-prose p{
  margin:0 0 1.65rem;
}
.article-prose h2{
  font-size:clamp(22px,2.6vw,30px);
  font-weight:800;
  color:#fff;
  margin:2.6rem 0 1.1rem;
  line-height:1.35;
  padding-bottom:10px;
  border-bottom:1px solid var(--line);
}
.article-prose h3{
  font-size:21px;
  font-weight:800;
  color:#fff;
  margin:2.2rem 0 .9rem;
  line-height:1.4;
}
.article-prose h4{
  font-size:18px;
  font-weight:800;
  color:#edf6ff;
  margin:2rem 0 .7rem;
}
.article-prose img{
  border-radius:16px;
  margin:28px 0;
  border:1px solid var(--line);
}
.article-prose blockquote{
  border-left:4px solid var(--primary);
  background:rgba(25,211,179,.06);
  border-radius:0 12px 12px 0;
  margin:28px 0;
  padding:18px 24px;
  color:#a9c7d8;
  font-style:normal;
}
.article-prose blockquote p:last-child{margin-bottom:0}
.article-prose a{
  color:var(--primary);
  text-decoration:underline;
  text-underline-offset:3px;
}
.article-prose a:hover{color:var(--primary-2)}
.article-prose ul,.article-prose ol{
  margin:0 0 1.6rem;
  padding-left:1.4rem;
}
.article-prose ul li,.article-prose ol li{
  margin-bottom:.55rem;
}
.article-prose ul li::marker{color:var(--primary)}
.article-prose ol li::marker{color:var(--primary)}
.article-prose table{
  width:100%;
  border-collapse:collapse;
  margin:28px 0;
  font-size:15px;
  background:var(--panel);
  border-radius:12px;
  overflow:hidden;
}
.article-prose th,.article-prose td{
  border:1px solid var(--line-light);
  padding:12px 14px;
  text-align:left;
}
.article-prose th{
  background:var(--panel-2);
  color:#fff;
  font-weight:700;
}
.article-prose code{
  background:rgba(255,255,255,.08);
  border-radius:6px;
  padding:2px 8px;
  font-size:.88em;
  color:#ffd9a0;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
.article-prose pre{
  background:var(--bg-deep);
  border:1px solid var(--line);
  border-radius:12px;
  padding:20px;
  overflow-x:auto;
  margin:28px 0;
  color:#d6f8f0;
}
.article-prose pre code{
  background:transparent;
  padding:0;
  color:inherit;
}
.article-prose hr{
  border:0;
  border-top:1px solid var(--line);
  margin:36px 0;
  opacity:1;
}

.article-tag-box{
  margin-top:42px;
  padding-top:26px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:flex-start;
  flex-wrap:wrap;
  gap:10px;
}
.tag-box-label{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:13px;
  color:var(--muted);
  margin-right:4px;
  padding-top:5px;
}
.comment-like{
  margin-left:auto;
  font-size:13px;
  color:var(--muted);
}
.comment-like span{margin-left:14px}
.comment-like i{color:var(--primary)}
.tag-pill{
  display:inline-block;
  padding:6px 14px;
  border-radius:999px;
  background:var(--panel);
  border:1px solid var(--line);
  color:var(--muted);
  font-size:13px;
  transition:all .22s ease;
}
.tag-pill:hover{
  border-color:var(--primary);
  color:var(--primary);
  background:rgba(25,211,179,.08);
  transform:translateY(-2px);
}

/* 相关推荐 */
.related-section{
  background:var(--bg-deep);
  padding:72px 0;
  border-top:1px solid var(--line);
}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:34px;
}
.section-head h2{
  font-size:clamp(24px,3vw,34px);
  font-weight:900;
  color:#fff;
  margin:0;
  line-height:1.25;
}
.section-head .sec-sub{
  color:var(--muted);
  font-size:14px;
  margin-top:6px;
}
.rel-card{
  height:100%;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  transition:all .28s ease;
}
.rel-card:hover{
  transform:translateY(-5px);
  box-shadow:var(--shadow-lg);
  border-color:rgba(255,255,255,.15);
}
.rel-card__cover{
  height:150px;
  overflow:hidden;
  position:relative;
  background:var(--bg-2);
}
.rel-card__cover img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .4s ease;
}
.rel-card:hover .rel-card__cover img{transform:scale(1.05)}
.rel-card__cover .img-tip{
  position:absolute;
  left:14px;top:14px;
  border-radius:999px;
  background:rgba(12,17,21,.85);
  padding:5px 12px;
  font-size:12px;
  color:#fff;
  backdrop-filter:blur(6px);
}
.rel-card__body{
  padding:22px 22px 24px;
  flex:1;
  display:flex;
  flex-direction:column;
}
.rel-card__body h3{
  font-size:18px;
  font-weight:800;
  color:#fff;
  margin:0 0 10px;
  line-height:1.4;
}
.rel-card__body h3 a:hover{color:var(--primary)}
.rel-card__body p{
  color:var(--muted);
  font-size:14px;
  line-height:1.85;
  margin-bottom:18px;
  flex:1;
}
.rel-card__link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--primary);
  font-size:14px;
  font-weight:700;
}
.rel-card__link i{
  transition:transform .2s ease;
}
.rel-card__link:hover{color:var(--primary-2)}
.rel-card__link:hover i{transform:translateX(4px)}

.rel-cta{
  margin-top:36px;
  text-align:center;
}

/* 文章页 CTA */
.article-cta{
  padding:72px 0;
  background:var(--bg);
  position:relative;
  overflow:hidden;
}
.cta-band{
  position:relative;
  border-radius:20px;
  overflow:hidden;
  padding:42px;
  background:
    linear-gradient(115deg,rgba(18,25,34,.96),rgba(22,32,43,.9)),
    url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  border:1px solid rgba(25,211,179,.22);
}
.cta-band__inner{
  position:relative;
  z-index:3;
  display:flex;
  align-items:center;
  gap:30px;
  justify-content:space-between;
  flex-wrap:wrap;
}
.cta-band h2{
  font-size:clamp(22px,3vw,30px);
  font-weight:900;
  color:#fff;
  margin-bottom:6px;
}
.cta-band p{
  color:var(--muted);
  margin:0;
  max-width:680px;
  font-size:15px;
  line-height:1.85;
}
.cta-btn-group{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
  flex-shrink:0;
}

/* 未找到状态 */
.notfound-main{
  padding:110px 0;
  background:var(--bg);
  min-height:62vh;
  position:relative;
}
.notfound-main::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:28px 28px;
  mask-image:radial-gradient(circle at center,rgba(0,0,0,.9),transparent 75%);
  pointer-events:none;
}
.notfound-card{
  max-width:560px;
  margin:0 auto;
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:22px;
  padding:56px 36px;
  text-align:center;
  position:relative;
  box-shadow:var(--shadow-lg);
}
.nf-icon{
  width:76px;height:76px;
  margin:0 auto 24px;
  border-radius:22px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:linear-gradient(135deg,rgba(25,211,179,.18),rgba(125,108,255,.18));
  border:1px solid rgba(25,211,179,.3);
  color:var(--primary);
  font-size:28px;
}
.notfound-card h2{
  color:#fff;
  font-size:26px;
  font-weight:900;
  margin-bottom:12px;
}
.notfound-card p{
  color:var(--muted);
  margin-bottom:28px;
  line-height:1.85;
  font-size:15px;
}

/* 页脚 */
footer{
  border-top:1px solid var(--line);
  background:var(--bg-deep);
}
.footer-main{
  padding:64px 0 44px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:20px;
  font-weight:800;
  color:#fff;
  margin-bottom:18px;
  letter-spacing:.01em;
}
.fbadge{
  width:38px;height:38px;
  border-radius:10px;
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  color:#0c1115;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:13px;
  font-weight:900;
  flex-shrink:0;
}
.footer-desc{
  color:var(--muted);
  font-size:14px;
  line-height:1.9;
  margin-bottom:0;
  padding-right:12px;
}
.footer-col-title{
  color:#fff;
  font-weight:800;
  font-size:16px;
  margin-bottom:20px;
  position:relative;
  padding-bottom:12px;
}
.footer-col-title::after{
  content:"";
  width:24px;
  height:2px;
  background:var(--primary);
  border-radius:2px;
  position:absolute;
  left:0;bottom:0;
}
.footer-links,.footer-contact-list{
  list-style:none;
  padding:0;
  margin:0;
}
.footer-links li{margin-bottom:12px}
.footer-links a{
  color:var(--muted);
  font-size:14px;
  display:inline-flex;
  align-items:center;
  gap:4px;
  transition:all .2s ease;
  line-height:1.5;
}
.footer-links a i{font-size:10px;color:var(--primary);opacity:.85}
.footer-links a:hover{
  color:var(--primary);
  transform:translateX(2px);
}
.footer-contact-list li{
  display:flex;
  align-items:flex-start;
  gap:12px;
  color:var(--muted);
  font-size:14px;
  margin-bottom:14px;
  line-height:1.6;
}
.footer-contact-list i{
  color:var(--primary);
  margin-top:4px;
}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:20px 0;
  background:rgba(0,0,0,.18);
  font-size:13px;
  color:var(--muted);
}
.footer-bottom span{opacity:.9}

/* 响应式 */
@media (max-width:991.98px){
  .navbar .container{align-items:center}
  .navbar-collapse{
    background:var(--bg-deep);
    border:1px solid var(--line);
    border-radius:16px;
    margin-top:12px;
    padding:16px;
    box-shadow:var(--shadow-lg);
  }
  .navbar-nav{
    width:100%;
    align-items:stretch;
    margin:0 0 12px;
  }
  .navbar .nav-link{
    padding:12px 14px;
    font-size:16px;
  }
  .navbar .nav-link::after{display:none}
  .nav-cta{
    margin-left:0;
    padding-top:10px;
    border-top:1px solid var(--line);
    width:100%;
  }
  .nav-login{
    flex:1;
    text-align:center;
    padding:11px;
    border:1px solid var(--line-light);
  }
  .nav-register{
    flex:1;
    text-align:center;
    padding:11px 18px;
  }
  .article-cta{padding:56px 0}
  .cta-band{
    padding:30px 24px;
  }
}
@media (max-width:767.98px){
  .announce-bar{
    font-size:12px;
    padding:8px 36px;
    justify-content:flex-start;
  }
  .announce-bar .announce-close{right:10px}
  .brand{width:100%;justify-content:space-between;margin-right:0}
  .brand-text strong{font-size:17px}
  .navbar .container{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
  }
  .article-banner{
    padding:50px 0 44px;
  }
  .article-banner h1{
    font-size:25px;
    line-height:1.34;
  }
  .article-meta{gap:10px}
  .article-main-col{
    padding:22px 18px;
    border-radius:14px;
  }
  .article-summary{
    padding:14px 17px;
    font-size:14px;
  }
  .article-prose{
    font-size:15px;
    line-height:1.9;
  }
  .related-section,.article-cta,.footer-main{padding:54px 0 34px}
  .footer-main .row{gap:26px}
  .rel-card__cover{height:120px}
  .notfound-main{padding:66px 0}
  .notfound-card{padding:38px 22px}
  .search-form{flex-direction:column;align-items:stretch}
  .cta-band__inner{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .navbar .container{
    min-height:64px;
    padding-top:8px;
    padding-bottom:8px;
  }
  .brand-mark{
    width:38px;height:38px;border-radius:10px;font-size:13px;
  }
  .brand-text strong{font-size:15px}
  .brand-text small{font-size:10px}
  .btn{
    padding:10px 18px;
    font-size:14px;
  }
  .article-banner h1{
    font-size:22px;
  }
  .meta-item{
    padding:5px 10px;
    font-size:12px;
  }
}

/* roulang page: category1 */
:root {
  --bg-void: #0C1115;
  --bg-deep: #0E151C;
  --bg-muted: #121922;
  --panel: #16202B;
  --panel-hover: #1B2836;
  --border: rgba(255, 255, 255, .08);
  --line: rgba(255, 255, 255, .14);
  --text: #EFF6FF;
  --muted: #93A5B8;
  --primary: #19D3B3;
  --primary-strong: #2FE4C6;
  --accent: #7D6CFF;
  --accent-light: #A79BFF;
  --danger: #FF5D6C;
  --gold: #F2C25C;
  --radius-lg: 16px;
  --radius: 12px;
  --radius-sm: 8px;
  --container-w: 1240px;
  --font-sans: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei UI", "Microsoft YaHei", "Segoe UI", sans-serif;
  --shadow-card: 0 4px 20px rgba(0, 0, 0, .2);
  --shadow-float: 0 16px 40px rgba(0, 0, 0, .35), 0 0 0 1px rgba(255, 255, 255, .06);
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  background: var(--bg-void);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.7;
  font-feature-settings: "tnum";
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4, h5, h6 {
  font-weight: 800;
  color: var(--text);
  line-height: 1.2;
}
a {
  color: var(--primary);
  text-decoration: none;
  transition: color .2s ease;
}
a:hover {
  color: var(--primary-strong);
}
img {
  max-width: 100%;
  height: auto;
}
a, button, input, textarea {
  outline: none;
}
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
}
.container {
  max-width: var(--container-w);
}
.text-brand {
  color: var(--primary);
}
.gradient-text {
  background: linear-gradient(92deg, var(--primary) 10%, var(--accent-light) 90%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.section {
  padding: 96px 0;
  position: relative;
}
.section-bg {
  background: var(--bg-muted);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--primary);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--primary);
  border-radius: 50%;
  box-shadow: 0 0 0 5px rgba(25, 211, 179, .14);
}
.section-title {
  font-size: clamp(25px, 3.5vw, 38px);
  margin-bottom: 16px;
  line-height: 1.22;
  letter-spacing: -.01em;
}
.section-desc {
  color: var(--muted);
  font-size: 16px;
  max-width: 760px;
  margin-bottom: 0;
}
.section-head {
  margin-bottom: 48px;
}
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  color: var(--primary);
  white-space: nowrap;
}
.text-link i {
  transition: transform .2s ease;
}
.text-link:hover {
  color: var(--primary-strong);
}
.text-link:hover i {
  transform: translateX(4px);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  width: 100%;
  z-index: 1060;
}
.announce-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 24px;
  background: #131D26;
  color: var(--muted);
  border-bottom: 1px solid rgba(255, 255, 255, .06);
  font-size: 13px;
}
.announce-bar .fa-bullhorn {
  color: var(--gold);
}
.announce-bar span {
  flex: 1;
  text-align: center;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.announce-close {
  background: transparent;
  border: 0;
  color: var(--muted);
  padding: 4px 10px;
  font-size: 16px;
  line-height: 1;
  transition: color .2s;
  border-radius: 6px;
}
.announce-close:hover {
  color: #fff;
  background: rgba(255, 255, 255, .06);
}
.navbar {
  background: rgba(12, 17, 21, .72);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(25, 211, 179, .28);
  padding-top: 10px;
  padding-bottom: 10px;
  min-height: 72px;
}
.navbar .navbar-nav {
  gap: 2px;
  margin-left: 32px;
}
.navbar .nav-link {
  color: var(--muted);
  font-weight: 500;
  font-size: 15px;
  padding: 10px 16px;
  border-radius: 8px;
  position: relative;
  transition: color .2s ease, background .2s ease;
}
.navbar .nav-link:hover {
  color: var(--text);
  background: rgba(255, 255, 255, .04);
}
.navbar .nav-link.active {
  color: var(--primary);
  background: rgba(25, 211, 179, .06);
  font-weight: 600;
}
.navbar .nav-link.active::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 3px;
  height: 2px;
  border-radius: 999px;
  background: var(--primary);
  box-shadow: 0 0 12px rgba(25, 211, 179, .6);
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}
.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 38px;
  height: 38px;
  padding: 0 7px;
  background: linear-gradient(135deg, var(--primary), #57E6C9);
  color: #08121B;
  font-weight: 900;
  font-size: 14px;
  letter-spacing: .03em;
  border-radius: 10px;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, .15), 0 8px 22px rgba(25, 211, 179, .2);
}
.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}
.brand-text strong {
  font-size: 18px;
  font-weight: 900;
  color: var(--text);
  letter-spacing: .01em;
}
.brand-text small {
  font-size: 12px;
  color: var(--muted);
  letter-spacing: .05em;
  margin-top: 3px;
}
.nav-cta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: 8px;
}
.nav-login {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 18px;
  font-size: 14px;
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 8px;
  font-weight: 600;
  transition: all .2s ease;
  background: rgba(255, 255, 255, .02);
}
.nav-login:hover {
  border-color: var(--primary);
  color: var(--primary);
}
.nav-register {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 20px;
  font-size: 14px;
  background: var(--primary);
  color: #08121B;
  border: 1px solid var(--primary);
  border-radius: 8px;
  font-weight: 700;
  transition: all .2s ease;
  box-shadow: 0 6px 18px rgba(25, 211, 179, .22);
}
.nav-register:hover {
  background: var(--primary-strong);
  color: #071018;
  transform: translateY(-2px);
  box-shadow: 0 10px 26px rgba(25, 211, 179, .3);
}
.navbar-toggler {
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 8px;
  padding: 8px 10px;
  color: var(--text);
}
.navbar-toggler:focus {
  box-shadow: 0 0 0 3px rgba(25, 211, 179, .24);
}
.navbar-toggler-icon {
  display: inline-block;
  width: 22px;
  height: 18px;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(239,246,255,.85)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* Category Hero */
.cat-hero {
  position: relative;
  background: var(--bg-void);
  padding: 96px 0 64px;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}
.cat-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("/assets/images/backpic/back-1.png") no-repeat center center / cover;
  opacity: .34;
}
.cat-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 18%, rgba(25, 211, 179, .14), transparent 28%),
    radial-gradient(circle at 78% 70%, rgba(125, 108, 255, .16), transparent 30%),
    linear-gradient(105deg, rgba(12, 17, 21, .98) 40%, rgba(12, 17, 21, .72) 82%, rgba(12, 17, 21, .84));
}
.cat-hero .container {
  position: relative;
  z-index: 2;
}
.hero-copy {
  padding-right: 28px;
}
.hero-overline {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(25, 211, 179, .08);
  border: 1px solid rgba(25, 211, 179, .22);
  color: var(--primary);
  border-radius: 999px;
  padding: 7px 15px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 18px;
}
.live-dot {
  width: 7px;
  height: 7px;
  background: var(--primary);
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(25, 211, 179, .16);
}
.hero-title {
  font-size: clamp(34px, 5.6vw, 58px);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -.025em;
  margin-bottom: 20px;
}
.hero-desc {
  font-size: 16px;
  color: var(--muted);
  max-width: 650px;
  line-height: 1.85;
  margin-bottom: 28px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-bottom: 32px;
}
.btn-enter, .btn-line, .btn-violet, .btn-solid {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  font-weight: 700;
  border-radius: 8px;
  min-height: 46px;
  padding: 0 22px;
  font-size: 15px;
  transition: all .22s ease;
  border: 0;
}
.btn-enter {
  background: var(--primary);
  color: #08121B;
  box-shadow: 0 8px 20px rgba(25, 211, 179, .24);
}
.btn-enter:hover {
  background: var(--primary-strong);
  color: #071018;
  transform: translateY(-3px);
  box-shadow: 0 12px 28px rgba(25, 211, 179, .32);
}
.btn-line {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, .22);
  color: var(--text);
}
.btn-line:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-3px);
}
.btn-violet {
  background: linear-gradient(135deg, #B06AB3, #7D6CFF 60%, #5F79FF);
  color: #fff;
  box-shadow: 0 8px 24px rgba(125, 108, 255, .24);
}
.btn-violet:hover {
  filter: brightness(1.08);
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(125, 108, 255, .32);
}
.btn-solid {
  background: rgba(255, 255, 255, .08);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-solid:hover {
  border-color: var(--primary);
  color: var(--primary);
}
.trust-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 30px;
}
.trust-list li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 14px;
}
.trust-list li i {
  color: var(--primary);
  font-size: 13px;
}
.hero-visual {
  position: relative;
}
.browser-preview {
  background: rgba(22, 32, 43, .88);
  border: 1px solid rgba(255, 255, 255, .13);
  border-radius: 18px;
  overflow: hidden;
  box-shadow: var(--shadow-float);
}
.browser-bar {
  background: rgba(255, 255, 255, .04);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid var(--border);
}
.browser-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  display: inline-block;
}
.bd-1 { background: #ff5f57; }
.bd-2 { background: #febc2e; }
.bd-3 { background: #28c840; }
.browser-url {
  flex: 1;
  margin-left: 10px;
  background: rgba(255, 255, 255, .06);
  border-radius: 6px;
  padding: 5px 12px;
  font-size: 13px;
  color: var(--muted);
  font-family: var(--font-sans);
}
.browser-preview img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  display: block;
}
.browser-status {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  font-size: 13px;
  color: var(--muted);
  border-top: 1px solid var(--border);
}
.browser-status .fa-signal {
  color: var(--primary);
}

/* Quick info strip */
.quick-strip {
  background: var(--bg-muted);
  border-bottom: 1px solid var(--border);
}
.quick-strip .container {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 14px;
  padding-top: 20px;
  padding-bottom: 20px;
}
.quick-item {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(255, 255, 255, .035);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 16px;
  font-size: 14px;
  color: var(--text);
  font-weight: 500;
}
.quick-item i {
  color: var(--primary);
  font-size: 18px;
}
.quick-item small {
  color: var(--muted);
  font-weight: 400;
  display: block;
  font-size: 12px;
}

/* Route guide wide banner */
.route-banner {
  position: relative;
  border-radius: 22px;
  overflow: hidden;
  padding: 40px;
  margin-top: 10px;
  border: 1px solid var(--border);
}
.route-banner .bg-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .65;
}
.route-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(10, 15, 19, .96) 12%, rgba(10, 15, 19, .72) 46%, rgba(10, 15, 19, .32));
  z-index: 1;
}
.route-banner > * {
  position: relative;
  z-index: 2;
}
.route-guide-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 30px;
}
.route-label {
  font-size: 13px;
  color: var(--primary);
  font-weight: 600;
}
.route-guide-header h3 {
  font-size: clamp(22px, 3vw, 30px);
  margin: 6px 0 0;
}
.route-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.step-card {
  background: rgba(10, 14, 18, .55);
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 16px;
  padding: 24px;
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  transition: transform .25s ease, border-color .25s ease, background .25s ease;
}
.step-card:hover {
  transform: translateY(-4px);
  border-color: rgba(25, 211, 179, .5);
  background: rgba(10, 14, 18, .78);
}
.step-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--primary);
  color: #08121B;
  font-weight: 900;
  font-size: 16px;
  margin-bottom: 18px;
  box-shadow: 0 0 0 6px rgba(25, 211, 179, .12);
}
.step-card h4 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}
.step-card p {
  color: rgba(230, 240, 250, .72);
  font-size: 14px;
  line-height: 1.75;
  margin: 0;
}

/* Split section */
.split-wrap {
  background: linear-gradient(90deg, rgba(125, 108, 255, .06), transparent 35%);
}
.split-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 100%;
  box-shadow: var(--shadow-card);
}
.split-visual {
  position: relative;
  min-height: 260px;
  height: 100%;
}
.split-visual img {
  width: 100%;
  height: 100%;
  min-height: 260px;
  object-fit: cover;
  display: block;
}
.visual-flag {
  position: absolute;
  left: 18px;
  bottom: 18px;
  background: rgba(12, 17, 21, .82);
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 10px;
  padding: 8px 14px;
  font-size: 13px;
  color: var(--text);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}
.visual-flag i {
  color: var(--primary);
  margin-right: 6px;
}
.split-content {
  padding: 36px 28px;
  height: 100%;
}
.split-content h3 {
  font-size: 24px;
  margin-bottom: 12px;
}
.split-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 20px;
}
.split-list li {
  position: relative;
  padding-left: 30px;
}
.split-list li i {
  position: absolute;
  left: 0;
  top: 2px;
  width: 22px;
  height: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(25, 211, 179, .1);
  color: var(--primary);
  border-radius: 7px;
  font-size: 12px;
}
.split-list strong {
  display: block;
  font-size: 16px;
  margin-bottom: 4px;
}
.split-list p {
  color: var(--muted);
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
}

/* Scenario cards */
.scenario-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}
.scenario-card {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 30px 24px 22px;
  transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
  overflow: hidden;
}
.scenario-card::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), transparent 70%);
}
.scenario-card.sc-purple::before {
  background: linear-gradient(90deg, var(--accent), transparent 70%);
}
.scenario-card.sc-gold::before {
  background: linear-gradient(90deg, var(--gold), transparent 70%);
}
.scenario-card.sc-red::before {
  background: linear-gradient(90deg, var(--danger), transparent 70%);
}
.scenario-card:hover {
  transform: translateY(-6px);
  border-color: rgba(255, 255, 255, .18);
  box-shadow: var(--shadow-float);
}
.scenario-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 14px;
}
.scenario-icon {
  width: 48px;
  height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 13px;
  font-size: 20px;
  background: rgba(25, 211, 179, .1);
  color: var(--primary);
}
.sc-purple .scenario-icon {
  background: rgba(125, 108, 255, .14);
  color: var(--accent-light);
}
.sc-gold .scenario-icon {
  background: rgba(242, 194, 92, .14);
  color: var(--gold);
}
.sc-red .scenario-icon {
  background: rgba(255, 93, 108, .1);
  color: var(--danger);
}
.scenario-card h3 {
  font-size: 20px;
  margin-bottom: 8px;
}
.scenario-card p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
  margin-bottom: 16px;
}
.scenario-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
}
.scenario-link:hover {
  color: var(--primary-strong);
}

/* FAQ */
.faq-wrap {
  padding: 96px 0;
}
.faq-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 32px;
}
.accordion {
  --bs-accordion-bg: transparent;
  --bs-accordion-border-width: 0;
}
.accordion-item {
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--border);
  border-radius: 0 !important;
}
.accordion-item:last-child {
  border-bottom: 0;
}
.accordion-button {
  background: transparent;
  color: var(--text);
  padding: 20px 8px 20px 0;
  font-size: 16px;
  font-weight: 600;
  box-shadow: none;
  border: 0;
  gap: 10px;
  transition: color .2s;
}
.accordion-button:not(.collapsed) {
  background: transparent;
  color: var(--primary);
  box-shadow: none;
}
.accordion-button::after {
  display: none !important;
}
.accordion-button .fa-plus {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  background: rgba(25, 211, 179, .1);
  color: var(--primary);
  border-radius: 8px;
  margin-left: auto;
  font-size: 12px;
  transition: transform .25s ease, background .25s ease;
}
.accordion-button:not(.collapsed) .fa-plus {
  transform: rotate(45deg);
  background: var(--primary);
  color: #08121B;
}
.accordion-body {
  color: var(--muted);
  padding: 0 0 22px;
  font-size: 15px;
  line-height: 1.85;
  max-width: 820px;
}

/* CTA */
.cta-band {
  position: relative;
  overflow: hidden;
  padding: 0 0 96px;
}
.cta-box {
  position: relative;
  background: linear-gradient(135deg, rgba(22, 32, 43, .94), rgba(27, 40, 54, .86)), url("/assets/images/backpic/back-2.png") center / cover no-repeat;
  border: 1px solid rgba(25, 211, 179, .32);
  border-radius: 24px;
  padding: 64px 50px;
  text-align: center;
  overflow: hidden;
}
.cta-box::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -60px;
  width: 240px;
  height: 240px;
  background: radial-gradient(circle, rgba(25, 211, 179, .22), transparent 68%);
}
.cta-box::after {
  content: "";
  position: absolute;
  bottom: -100px;
  left: -60px;
  width: 260px;
  height: 260px;
  background: radial-gradient(circle, rgba(125, 108, 255, .2), transparent 70%);
}
.cta-box > * {
  position: relative;
  z-index: 2;
}
.cta-box .eyebrow {
  justify-content: center;
}
.cta-box .eyebrow::before {
  display: none;
}
.cta-title {
  font-size: clamp(28px, 4vw, 46px);
  font-weight: 900;
  margin-bottom: 18px;
}
.cta-title span {
  color: var(--primary);
}
.cta-text {
  color: var(--muted);
  font-size: 16px;
  max-width: 680px;
  margin: 0 auto 30px;
}
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
}

/* Footer */
footer {
  background: #0A0F13;
  border-top: 1px solid var(--border);
}
.footer-main {
  padding: 70px 0 50px;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 21px;
  font-weight: 900;
  color: var(--text);
  margin-bottom: 16px;
}
.fbadge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 7px;
  background: linear-gradient(135deg, var(--primary), #5FE4C8);
  color: #08121B;
  font-size: 13px;
  font-weight: 900;
  border-radius: 10px;
}
.footer-desc {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.85;
  max-width: 360px;
  margin: 0;
}
.footer-col-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 20px;
  letter-spacing: .02em;
}
.footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
.footer-links a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 14px;
  transition: color .2s ease, transform .2s ease;
}
.footer-links a i {
  color: var(--primary);
  font-size: 12px;
}
.footer-links a:hover {
  color: var(--text);
  transform: translateX(3px);
}
.footer-contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
  color: var(--muted);
  font-size: 14px;
}
.footer-contact-list li {
  display: flex;
  align-items: center;
  gap: 10px;
}
.footer-contact-list li i {
  color: var(--primary);
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .06);
  padding: 20px 0;
  color: var(--muted);
  font-size: 13px;
}

/* Responsive */
@media (max-width: 1199px) {
  .brand-text small {
    display: none;
  }
  .navbar .navbar-nav {
    margin-left: 14px;
  }
  .navbar .nav-link {
    padding: 9px 10px;
  }
  .hero-title {
    font-size: clamp(32px, 5vw, 52px);
  }
  .route-steps {
    gap: 14px;
  }
  .step-card {
    padding: 18px;
  }
}
@media (max-width: 991px) {
  .section {
    padding: 70px 0;
  }
  .faq-wrap {
    padding: 70px 0;
  }
  .navbar-collapse {
    padding: 16px 0 8px;
  }
  .navbar .navbar-nav {
    margin-left: 0;
  }
  .navbar .nav-link {
    padding: 12px 8px;
    border-radius: 8px;
  }
  .navbar .nav-link.active::after {
    left: 8px;
    right: auto;
    width: 18px;
  }
  .nav-cta {
    margin: 12px 0 0;
  }
  .hero-copy {
    padding-right: 0;
  }
  .hero-visual {
    margin-top: 44px;
  }
  .quick-strip .container {
    grid-template-columns: 1fr;
  }
  .route-steps {
    grid-template-columns: 1fr;
  }
  .route-banner {
    padding: 28px 20px;
  }
  .scenario-grid {
    grid-template-columns: 1fr;
  }
  .cta-box {
    padding: 46px 24px;
  }
  .footer-main {
    padding: 54px 0 24px;
  }
}
@media (max-width: 575px) {
  .hero-overline {
    font-size: 12px;
  }
  .hero-desc {
    font-size: 15px;
  }
  .hero-actions {
    align-items: stretch;
    flex-direction: column;
  }
  .hero-actions .btn-enter, .hero-actions .btn-line {
    width: 100%;
  }
  .browser-preview img {
    height: 200px;
  }
  .announce-bar span {
    white-space: normal;
    text-align: left;
  }
  .cta-actions .btn-enter, .cta-actions .btn-violet {
    width: 100%;
  }
}

/* roulang page: category2 */
:root {
      --bg-deep: #0C1115;
      --bg-panel: #121922;
      --bg-card: #16202B;
      --bg-hover: #1B2836;
      --line: rgba(255, 255, 255, 0.1);
      --line-soft: rgba(255, 255, 255, 0.07);
      --text-main: #EFF6FF;
      --text-muted: #93A5B8;
      --primary: #19D3B3;
      --primary-strong: #2FE6C7;
      --accent: #7D6CFF;
      --warning: #FF5D6C;
      --gold: #F2C25C;
      --shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
      --shadow-hover: 0 16px 40px rgba(0, 0, 0, 0.35), 0 0 0 1px rgba(255, 255, 255, 0.06);
      --radius-lg: 16px;
      --radius-md: 10px;
      --radius-sm: 8px;
      --space: 96px;
    }
    * {
      box-sizing: border-box;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      font-family: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei UI", "Microsoft YaHei", "Helvetica Neue", sans-serif;
      background: var(--bg-deep);
      color: var(--text-main);
      font-size: 16px;
      line-height: 1.8;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
      font-feature-settings: "tnum";
    }
    a {
      text-decoration: none;
      color: inherit;
      transition: all .25s ease;
    }
    img {
      max-width: 100%;
      height: auto;
    }
    button,
    input {
      font-family: inherit;
    }
    .container {
      max-width: 1240px;
    }
    section {
      overflow: hidden;
    }
    .section {
      padding: 96px 0;
    }
    .section-sm {
      padding: 40px 0;
    }

    /* ---------- 按钮 ---------- */
    .btn {
      --bs-btn-border-radius: var(--radius-sm);
      font-weight: 600;
      letter-spacing: .01em;
      padding: .72rem 1.55rem;
    }
    .btn-primary {
      background: var(--primary);
      border: 1px solid var(--primary);
      color: #071212;
      font-weight: 800;
      box-shadow: 0 0 0 rgba(25, 211, 179, 0);
    }
    .btn-primary:hover,
    .btn-primary:focus,
    .btn-primary:active {
      background: var(--primary-strong);
      border-color: var(--primary-strong);
      color: #071212;
      transform: translateY(-2px);
      box-shadow: 0 10px 30px rgba(25, 211, 179, 0.14);
    }
    .btn-ghost {
      background: transparent;
      border: 1px solid rgba(255, 255, 255, 0.24);
      color: var(--text-main);
    }
    .btn-ghost:hover {
      border-color: var(--primary);
      color: var(--primary);
      transform: translateY(-2px);
      background: rgba(25, 211, 179, 0.04);
    }
    .btn-accent {
      background: linear-gradient(135deg, #8B7EFF 0%, #6B5EFF 100%);
      border: 1px solid rgba(255, 255, 255, 0.12);
      color: #fff;
      font-weight: 800;
    }
    .btn-accent:hover {
      transform: translateY(-2px);
      color: #fff;
      box-shadow: 0 14px 32px rgba(109, 85, 255, 0.24);
    }

    /* ---------- 顶部公告 ---------- */
    .announce-bar {
      background: linear-gradient(90deg, rgba(25, 211, 179, 0.16), rgba(125, 108, 255, 0.08));
      border-bottom: 1px solid rgba(25, 211, 179, 0.12);
      padding: 10px 18px;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      font-size: 14px;
      color: var(--text-main);
      position: relative;
      text-align: center;
    }
    .announce-bar i {
      color: var(--primary);
    }
    .announce-close {
      position: absolute;
      right: 12px;
      background: transparent;
      border: 0;
      color: var(--text-muted);
      font-size: 15px;
      width: 28px;
      height: 28px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .announce-close:hover {
      color: #fff;
      background: rgba(255, 255, 255, 0.08);
    }

    /* ---------- 导航 ---------- */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1030;
      background: rgba(12, 17, 21, 0.86);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-bottom: 1px solid rgba(25, 211, 179, 0.28);
    }
    .site-header .navbar {
      padding: 0;
      min-height: 76px;
    }
    .brand {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .brand-mark {
      width: 46px;
      height: 46px;
      border-radius: 12px;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      color: #081414;
      letter-spacing: -0.02em;
      font-size: 18px;
      box-shadow: 0 8px 20px rgba(25, 211, 179, 0.2);
    }
    .brand-text {
      display: flex;
      flex-direction: column;
      line-height: 1.25;
    }
    .brand-text strong {
      font-size: 20px;
      font-weight: 800;
      letter-spacing: .02em;
    }
    .brand-text small {
      color: var(--text-muted);
      font-size: 12px;
      letter-spacing: .05em;
      margin-top: 2px;
    }
    .navbar-nav {
      gap: 6px;
      margin-left: 16px;
    }
    .site-header .nav-link {
      color: var(--text-muted);
      font-weight: 500;
      font-size: 15px;
      padding: 24px 14px;
      border-bottom: 2px solid transparent;
      position: relative;
      margin-bottom: -1px;
    }
    .site-header .nav-link:hover {
      color: #fff;
    }
    .site-header .nav-link.active {
      color: var(--primary);
      border-bottom-color: var(--primary);
      font-weight: 700;
    }
    .nav-cta {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-left: auto;
    }
    .nav-login {
      padding: 7px 12px;
      color: var(--text-main);
      font-weight: 600;
    }
    .nav-login:hover {
      color: var(--primary);
    }
    .nav-register {
      background: rgba(125, 108, 255, 0.12);
      border: 1px solid rgba(125, 108, 255, 0.42);
      color: #fff;
      padding: 8px 18px;
      border-radius: 999px;
      font-weight: 600;
      font-size: 14px;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .nav-register:hover {
      border-color: var(--primary);
      color: var(--primary);
      background: rgba(25, 211, 179, 0.1);
    }
    .navbar-toggler {
      border: 1px solid rgba(255, 255, 255, 0.18);
      border-radius: 8px;
      padding: 5px 10px;
    }
    .navbar-toggler-icon {
      background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255,255,255,0.8%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
    }

    /* ---------- 分类 Hero ---------- */
    .category-hero {
      position: relative;
      padding: 110px 0 100px;
      background:
        linear-gradient(90deg, rgba(12, 17, 21, 0.95) 0%, rgba(18, 25, 34, 0.84) 52%, rgba(18, 25, 34, 0.68) 100%),
        url("/assets/images/backpic/back-1.png") center/cover no-repeat;
      border-bottom: 1px solid var(--line-soft);
    }
    .category-hero:before {
      content: "";
      position: absolute;
      inset: 0;
      background-image:
        linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
      background-size: 54px 54px;
      pointer-events: none;
    }
    .category-hero .container {
      position: relative;
      z-index: 2;
    }
    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(25, 211, 179, 0.1);
      border: 1px solid rgba(25, 211, 179, 0.22);
      color: var(--primary);
      padding: 6px 15px;
      border-radius: 999px;
      font-size: 13px;
      font-weight: 600;
    }
    .hero-badge i {
      width: 7px;
      height: 7px;
      background: var(--primary);
      border-radius: 50%;
      display: inline-block;
      box-shadow: 0 0 0 4px rgba(25, 211, 179, 0.16);
    }
    .category-hero h1 {
      font-size: clamp(32px, 5vw, 54px);
      font-weight: 900;
      color: #fff;
      margin: 22px 0 20px;
      line-height: 1.16;
    }
    .category-hero h1 span {
      color: var(--primary);
    }
    .hero-lead {
      font-size: 17px;
      color: var(--text-muted);
      max-width: 640px;
      margin: 0 0 32px;
      line-height: 1.9;
    }
    .hero-actions {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
    }
    .hero-note {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-top: 30px;
      color: var(--text-muted);
      font-size: 14px;
    }
    .hero-note i {
      color: var(--warning);
    }

    /* ---------- 动态数据带 ---------- */
    .data-strip {
      background: var(--bg-panel);
      border-bottom: 1px solid var(--line-soft);
      padding: 26px 0;
    }
    .data-strip .data-item {
      display: flex;
      align-items: center;
      gap: 14px;
      padding: 14px 10px;
    }
    .data-strip .data-icon {
      flex: 0 0 auto;
      width: 44px;
      height: 44px;
      border-radius: 12px;
      background: rgba(25, 211, 179, 0.1);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      border: 1px solid rgba(25, 211, 179, 0.14);
    }
    .data-strip .data-item strong {
      display: block;
      font-size: 17px;
      font-weight: 800;
      color: #fff;
      line-height: 1.4;
    }
    .data-strip .data-item span {
      color: var(--text-muted);
      font-size: 13px;
    }

    /* ---------- 区块主标题 ---------- */
    .sec-head {
      margin-bottom: 40px;
    }
    .sec-head .sec-tag {
      display: inline-block;
      color: var(--primary);
      font-size: 13px;
      font-weight: 800;
      letter-spacing: .08em;
      margin-bottom: 6px;
      text-transform: uppercase;
    }
    .sec-head h2 {
      font-size: clamp(26px, 3.6vw, 38px);
      font-weight: 900;
      line-height: 1.25;
      color: #fff;
      margin: 0;
    }
    .sec-head p {
      color: var(--text-muted);
      font-size: 15px;
      max-width: 720px;
      margin-top: 12px;
      margin-bottom: 0;
    }

    /* ---------- 核心重点卡 ---------- */
    .feature-module {
      padding: 96px 0 40px;
    }
    .feature-post {
      margin-top: 30px;
    }
    .feature-media {
      position: relative;
      min-height: 380px;
      border-radius: var(--radius-lg);
      background: url("/assets/images/coverpic/cover-6.webp") center/cover no-repeat;
      border: 1px solid var(--line);
      overflow: hidden;
      box-shadow: var(--shadow);
    }
    .feature-media:before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, transparent 34%, rgba(6, 10, 14, 0.75) 100%);
    }
    .feature-media .media-flag {
      position: absolute;
      top: 20px;
      left: 20px;
      background: rgba(12, 17, 21, 0.72);
      border: 1px solid rgba(255, 255, 255, 0.2);
      backdrop-filter: blur(8px);
      color: #fff;
      padding: 6px 15px;
      border-radius: 999px;
      font-size: 13px;
      font-weight: 600;
      display: flex;
      align-items: center;
      gap: 6px;
    }
    .media-flag i {
      color: var(--primary);
    }
    .feature-media .media-caption {
      position: absolute;
      left: 22px;
      right: 22px;
      bottom: 22px;
      z-index: 2;
    }
    .feature-media .media-caption span {
      color: var(--primary);
      font-size: 13px;
      font-weight: 700;
    }
    .feature-media .media-caption h3 {
      color: #fff;
      font-size: 22px;
      font-weight: 800;
      margin: 6px 0 4px;
    }
    .feature-media .media-caption small {
      color: rgba(239, 246, 255, 0.78);
      font-size: 14px;
    }
    .feature-copy {
      background: var(--bg-card);
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      padding: 28px;
      height: 100%;
      display: flex;
      flex-direction: column;
      justify-content: center;
      box-shadow: var(--shadow);
    }
    .feature-copy .pc-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      width: fit-content;
      background: rgba(125, 108, 255, 0.12);
      border: 1px solid rgba(125, 108, 255, 0.28);
      color: var(--accent);
      padding: 4px 12px;
      border-radius: 999px;
      font-size: 12px;
      font-weight: 700;
    }
    .feature-copy h3 {
      color: #fff;
      font-size: 22px;
      font-weight: 800;
      margin: 14px 0 12px;
    }
    .feature-copy p {
      color: var(--text-muted);
      font-size: 15px;
    }
    .feature-copy ul {
      margin: 14px 0 0;
      padding: 0;
      list-style: none;
    }
    .feature-copy li {
      display: flex;
      gap: 10px;
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 8px;
    }
    .feature-copy li i {
      color: var(--primary);
      margin-top: 6px;
    }
    .feature-copy .btn {
      margin-top: 20px;
    }

    /* ---------- 左右分屏模块 ---------- */
    .split-module {
      background: var(--bg-panel);
      padding: 96px 0;
      margin-top: 40px;
    }
    .split-card {
      background: var(--bg-card);
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow);
    }
    .split-card .split-left {
      padding: 48px;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }
    .standout-icon {
      width: 54px;
      height: 54px;
      background: rgba(25, 211, 179, 0.1);
      border: 1px solid rgba(25, 211, 179, 0.2);
      color: var(--primary);
      border-radius: 14px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      margin-bottom: 20px;
    }
    .split-card h3 {
      font-size: 24px;
      font-weight: 800;
      color: #fff;
      margin-bottom: 14px;
    }
    .split-card p {
      color: var(--text-muted);
      font-size: 15px;
      margin-bottom: 16px;
    }
    .split-card .mini-list {
      list-style: none;
      margin: 8px 0 0;
      padding: 0;
    }
    .mini-list li {
      display: flex;
      gap: 12px;
      padding: 8px 0;
      border-bottom: 1px dashed var(--line-soft);
      font-size: 15px;
      color: rgba(239, 246, 255, 0.88);
    }
    .mini-list li:last-child {
      border-bottom: 0;
    }
    .mini-list i {
      color: var(--primary);
      line-height: 1.8;
      width: 18px;
      text-align: center;
    }
    .mini-list strong {
      color: #fff;
      font-weight: 700;
    }
    .split-media {
      min-height: 340px;
      background: url("/assets/images/coverpic/cover-4.webp") center/cover no-repeat;
      position: relative;
    }
    .split-media:after {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      top: 0;
      bottom: 0;
      background: linear-gradient(90deg, rgba(22, 32, 43, 0.5), transparent 45%);
    }

    /* ---------- 动态卡片组 ---------- */
    .mod-cards-section {
      padding: 96px 0 30px;
    }
    .info-panel {
      background: var(--bg-card);
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      height: 100%;
      padding: 30px;
      position: relative;
      transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
      overflow: hidden;
    }
    .info-panel:before {
      content: "";
      position: absolute;
      left: 0;
      top: 0;
      height: 3px;
      width: 60px;
      background: var(--primary);
      border-radius: 0 3px 3px 0;
    }
    .info-panel.violet:before {
      background: var(--accent);
    }
    .info-panel.light:before {
      background: var(--gold);
    }
    .info-panel:hover {
      transform: translateY(-4px);
      border-color: rgba(255, 255, 255, 0.24);
      box-shadow: var(--shadow-hover);
    }
    .info-panel .panel-icon {
      font-size: 20px;
      line-height: 1;
      color: var(--primary);
      margin-bottom: 12px;
    }
    .info-panel.violet .panel-icon {
      color: var(--accent);
    }
    .info-panel.light .panel-icon {
      color: var(--gold);
    }
    .info-panel h3 {
      font-size: 20px;
      font-weight: 800;
      color: #fff;
      margin-bottom: 12px;
    }
    .info-panel p {
      color: var(--text-muted);
      font-size: 15px;
      margin-bottom: 16px;
    }
    .info-panel .more-link {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      color: var(--primary);
      font-size: 14px;
      font-weight: 700;
    }
    .info-panel .more-link:hover {
      gap: 11px;
      color: var(--primary-strong);
    }
    .info-panel.violet .more-link {
      color: var(--accent);
    }
    .info-panel.light .more-link {
      color: var(--gold);
    }

    /* ---------- 更新节奏 ---------- */
    .timeline-section {
      background: var(--bg-panel);
      padding: 96px 0;
      margin-top: 48px;
    }
    .roadmap-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
    }
    .road-item {
      background: rgba(12, 17, 21, 0.55);
      border: 1px solid var(--line-soft);
      border-radius: var(--radius-lg);
      padding: 26px;
      position: relative;
      transition: border-color .25s ease, background .25s ease;
    }
    .road-item:hover {
      border-color: rgba(25, 211, 179, 0.45);
      background: rgba(25, 211, 179, 0.04);
    }
    .road-step {
      width: 32px;
      height: 32px;
      background: rgba(25, 211, 179, 0.1);
      border: 1px solid rgba(25, 211, 179, 0.28);
      color: var(--primary);
      font-size: 13px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 50%;
      font-weight: 700;
      margin-bottom: 18px;
    }
    .road-item.hot .road-step {
      background: rgba(125, 108, 255, 0.15);
      border-color: var(--accent);
      color: #fff;
    }
    .road-item h4 {
      font-size: 17px;
      font-weight: 800;
      color: #fff;
      margin-bottom: 10px;
    }
    .road-item p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin: 0;
    }
    .road-item .road-tag {
      position: absolute;
      top: 22px;
      right: 20px;
      font-size: 11px;
      color: var(--text-muted);
      letter-spacing: .04em;
      background: rgba(255, 255, 255, 0.05);
      border-radius: 999px;
      padding: 2px 10px;
    }

    /* ---------- FAQ ---------- */
    .faq-section {
      padding: 96px 0 70px;
    }
    .faq-section .accordion {
      --bs-accordion-bg: transparent;
      max-width: 900px;
    }
    .faq-section .accordion-item {
      background: transparent;
      border: 0;
      border-bottom: 1px solid var(--line-soft);
      border-radius: 0 !important;
    }
    .faq-section .accordion-button {
      background: transparent;
      box-shadow: none;
      color: #E5EEF7;
      font-weight: 600;
      font-size: 16px;
      padding: 22px 12px;
      border-radius: 0;
      gap: 14px;
    }
    .faq-section .accordion-button .faq-count {
      color: var(--primary);
      font-weight: 800;
      font-size: 13px;
      flex: 0 0 auto;
    }
    .faq-section .accordion-button:hover {
      color: var(--primary-strong);
    }
    .faq-section .accordion-button:focus {
      box-shadow: none;
    }
    .faq-section .accordion-button::after {
      display: none;
    }
    .faq-section .faq-icon {
      margin-left: auto;
      width: 30px;
      height: 30px;
      flex: 0 0 auto;
      display: flex;
      align-items: center;
      justify-content: center;
      border: 1px solid var(--line);
      border-radius: 50%;
      color: var(--text-muted);
      background: rgba(255, 255, 255, 0.03);
      transition: all .3s ease;
    }
    .faq-section .faq-icon i {
      font-size: 12px;
      transition: transform .3s ease;
    }
    .faq-section .accordion-button:not(.collapsed) .faq-icon {
      background: rgba(25, 211, 179, 0.12);
      border-color: rgba(25, 211, 179, 0.3);
      color: var(--primary);
    }
    .faq-section .accordion-button:not(.collapsed) .faq-icon i {
      transform: rotate(45deg);
    }
    .faq-section .accordion-body {
      padding: 0 12px 28px 44px;
      color: var(--text-muted);
      font-size: 15px;
      line-height: 1.9;
    }
    .faq-section .accordion-body strong {
      color: #EAF2FA;
    }

    /* ---------- CTA ---------- */
    .cta-section {
      padding: 0 0 96px;
    }
    .cta-card {
      background:
        linear-gradient(100deg, rgba(12, 17, 21, 0.9), rgba(18, 25, 34, 0.68)),
        url("/assets/images/backpic/back-2.png") center/cover no-repeat;
      border: 1px solid var(--line);
      border-radius: 20px;
      padding: 58px;
      position: relative;
      overflow: hidden;
    }
    .cta-card:after {
      content: "";
      position: absolute;
      width: 360px;
      height: 360px;
      right: -120px;
      top: -120px;
      background: radial-gradient(circle, rgba(125, 108, 255, 0.25), transparent 68%);
      pointer-events: none;
    }
    .cta-card .cta-content {
      position: relative;
      z-index: 2;
      max-width: 650px;
    }
    .cta-card .cta-eyebrow {
      color: var(--gold);
      font-size: 13px;
      font-weight: 700;
      letter-spacing: .12em;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .cta-card h2 {
      font-size: clamp(26px, 4vw, 40px);
      color: #fff;
      font-weight: 900;
      margin: 16px 0 16px;
      line-height: 1.3;
    }
    .cta-card h2 span {
      color: var(--primary);
    }
    .cta-card p {
      color: var(--text-muted);
      font-size: 15px;
      max-width: 560px;
    }
    .cta-card .btn-group-cta {
      display: flex;
      gap: 14px;
      margin-top: 24px;
      flex-wrap: wrap;
    }

    /* ---------- 页脚 ---------- */
    footer {
      background: #091014;
      border-top: 1px solid var(--line);
    }
    .footer-main {
      padding: 64px 0 30px;
    }
    .footer-brand {
      display: flex;
      align-items: center;
      gap: 10px;
      color: #fff;
      font-size: 20px;
      font-weight: 800;
      margin-bottom: 20px;
    }
    .fbadge {
      width: 40px;
      height: 40px;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      border-radius: 10px;
      color: #0b1215;
      font-size: 15px;
      font-weight: 900;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .footer-desc {
      color: var(--text-muted);
      font-size: 14px;
      max-width: 340px;
      line-height: 1.9;
    }
    .footer-col-title {
      color: #fff;
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 16px;
    }
    .footer-links,
    .footer-contact-list {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a {
      color: var(--text-muted);
      font-size: 14px;
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .footer-links a i {
      font-size: 10px;
      color: var(--primary);
    }
    .footer-links a:hover {
      color: var(--primary);
      padding-left: 4px;
    }
    .footer-contact-list li {
      color: var(--text-muted);
      font-size: 14px;
      margin-bottom: 12px;
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .footer-contact-list i {
      color: var(--primary);
      width: 16px;
      text-align: center;
    }
    .footer-contact-list a {
      color: var(--text-muted);
    }
    .footer-contact-list a:hover {
      color: var(--primary);
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding: 18px 0;
      font-size: 13px;
      color: #7F8B9D;
    }

    /* ---------- 响应式 ---------- */
    @media (max-width: 992px) {
      .navbar-nav {
        padding: 16px 0;
      }
      .site-header .nav-link {
        padding: 12px 0;
        border-bottom: 0;
      }
      .site-header .nav-link.active {
        border-bottom: 0;
        background: rgba(25, 211, 179, 0.08);
        border-radius: 8px;
        padding-left: 12px;
      }
      .nav-cta {
        margin: 14px 0 20px;
      }
      .section {
        padding: 64px 0;
      }
      .split-module {
        padding: 64px 0;
      }
      .mod-cards-section {
        padding: 64px 0 20px;
      }
      .timeline-section {
        padding: 64px 0;
      }
      .cta-section {
        padding-bottom: 64px;
      }
      .roadmap-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 14px;
      }
      .split-card .split-left {
        padding: 36px;
      }
      .split-media {
        min-height: 260px;
      }
      .feature-media {
        min-height: 300px;
      }
    }
    @media (max-width: 768px) {
      .announce-bar {
        font-size: 12px;
        padding: 8px 36px;
      }
      .announce-close {
        right: 6px;
        top: 6px;
      }
      .brand-text strong {
        font-size: 17px;
      }
      .brand-text small {
        font-size: 11px;
      }
      .category-hero {
        padding: 76px 0 68px;
      }
      .hero-lead {
        font-size: 15px;
      }
      .feature-copy {
        padding: 24px;
      }
      .data-strip .data-item {
        border-bottom: 1px solid var(--line-soft);
      }
      .data-strip .data-item:last-child {
        border-bottom: 0;
      }
      .split-card .split-left {
        padding: 26px;
      }
      .cta-card {
        padding: 36px 26px;
      }
      .footer-main {
        padding-top: 44px;
      }
    }
    @media (max-width: 520px) {
      .roadmap-grid {
        grid-template-columns: 1fr;
      }
      .category-hero h1 {
        font-size: 30px;
      }
      .hero-actions .btn {
        width: 100%;
      }
      .feature-media {
        min-height: 240px;
      }
      .feature-media .media-caption h3 {
        font-size: 18px;
      }
      .footer-bottom {
        text-align: center;
      }
    }

/* roulang page: category3 */
:root {
  --bg-deep: #0C1115;
  --bg-panel: #121922;
  --bg-card: #16202B;
  --bg-hover: #1B2836;
  --line-soft: rgba(255,255,255,.10);
  --line-strong: rgba(255,255,255,.16);
  --text-main: #EFF6FF;
  --text-muted: #93A5B8;
  --primary: #19D3B3;
  --primary-bright: #35F2CF;
  --primary-dark: #0E9F87;
  --accent-purple: #7D6CFF;
  --alert: #FF5D6C;
  --gold: #F2C25C;
  --radius-xl: 18px;
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-sm: 8px;
  --shadow-card: 0 4px 20px rgba(0,0,0,.2);
  --shadow-lift: 0 16px 40px rgba(0,0,0,.35), 0 0 0 1px rgba(255,255,255,.06);
  --section-space: 96px;
  --font-cn: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei UI", "Microsoft YaHei", sans-serif;
}

html, body {
  overflow-x: hidden;
}

body {
  margin: 0;
  background: var(--bg-deep);
  color: var(--text-main);
  font-family: var(--font-cn);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

* {
  box-sizing: border-box;
}

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

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

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

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

.container {
  max-width: 1240px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1040;
  background: rgba(12, 17, 21, 0.84);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(25, 211, 179, .35);
}

.announce-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: var(--primary);
  color: #081018;
  font-size: 13px;
  font-weight: 700;
  line-height: 1.5;
  padding: 7px 44px;
  position: relative;
  text-align: center;
  min-height: 32px;
}

.announce-bar i {
  color: #081018;
}

.announce-close {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  border: 0;
  background: transparent;
  width: 30px;
  height: 30px;
  border-radius: 8px;
  color: #081018;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

.announce-close:hover {
  background: rgba(0,0,0,.14);
}

.navbar {
  padding: .65rem 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  margin-right: 18px;
  min-width: 0;
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--primary);
  color: #081018;
  font-weight: 900;
  font-size: 15px;
  letter-spacing: .6px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  box-shadow: 0 0 0 3px rgba(25,211,179,.08), 0 8px 18px rgba(25,211,179,.18);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
  min-width: 0;
}

.brand-text strong {
  font-size: 18px;
  font-weight: 900;
  letter-spacing: .5px;
  color: #F4FAFF;
  white-space: nowrap;
}

.brand-text small {
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .8px;
  text-transform: uppercase;
  margin-top: 2px;
  white-space: nowrap;
}

.navbar-nav {
  align-items: center;
  margin-left: auto;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 15px;
  padding: 8px 14px !important;
  border-radius: var(--radius-sm);
  position: relative;
  transition: color .2s ease, background .2s ease;
}

.nav-link:after {
  content: "";
  position: absolute;
  bottom: 3px;
  left: 16px;
  right: 16px;
  height: 2px;
  border-radius: 999px;
  background: var(--primary);
  opacity: 0;
  transform: scaleX(.2);
  transition: opacity .25s ease, transform .25s ease;
}

.nav-link:hover,
.nav-link:focus {
  color: var(--text-main);
  background: rgba(255,255,255,.04);
}

.nav-link:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  color: var(--text-main);
}

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

.nav-link.active:after {
  opacity: 1;
  transform: scaleX(1);
}

.nav-badge {
  display: inline-flex;
  align-items: center;
  background: var(--alert);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 999px;
  line-height: 1.6;
  margin-left: 4px;
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: 20px;
  padding-left: 18px;
  border-left: 1px solid var(--line-soft);
}

.nav-login {
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 600;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: all .2s ease;
}

.nav-login:hover {
  color: #fff;
  background: rgba(255,255,255,.06);
}

.nav-register {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: var(--primary);
  color: #081018;
  font-size: 14px;
  font-weight: 800;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  box-shadow: 0 6px 14px rgba(25,211,179,.15);
  transition: background .25s ease, transform .25s ease, box-shadow .25s ease;
}

.nav-register:hover {
  background: var(--primary-bright);
  color: #081018;
  transform: translateY(-1px);
  box-shadow: 0 10px 22px rgba(25,211,179,.24);
}

.navbar-toggler {
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-md);
  width: 44px;
  height: 40px;
}

.navbar-toggler:focus {
  box-shadow: none;
  outline: 2px solid var(--primary);
}

.navbar-toggler-icon {
  background-image: none !important;
  width: 18px;
  height: 2px;
  position: relative;
  display: block;
  background: var(--text-main);
  border-radius: 99px;
  transition: background .2s;
}

.navbar-toggler-icon:before,
.navbar-toggler-icon:after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  background: var(--text-main);
  border-radius: 99px;
}

.navbar-toggler-icon:before {
  top: -6px;
}

.navbar-toggler-icon:after {
  top: 6px;
}

.category-hero {
  position: relative;
  background-color: #0a0e13;
  background-image: linear-gradient(180deg, rgba(10,15,20,.92) 0%, rgba(10,15,20,.70) 42%, rgba(12,17,21,.96) 100%), url('/assets/images/backpic/back-3.webp');
  background-size: cover;
  background-position: center 30%;
  padding: 142px 0 108px;
  overflow: hidden;
}

.category-hero:before {
  content: "";
  position: absolute;
  width: 520px;
  height: 520px;
  right: -140px;
  top: -160px;
  border-radius: 50%;
  background: rgba(125,108,255,.16);
  filter: blur(80px);
  pointer-events: none;
}

.category-hero:after {
  content: "";
  position: absolute;
  width: 360px;
  height: 360px;
  left: 52%;
  bottom: -200px;
  border-radius: 50%;
  background: rgba(25,211,179,.10);
  filter: blur(70px);
  pointer-events: none;
}

.category-hero .container {
  position: relative;
  z-index: 2;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary-bright);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  background: rgba(25,211,179,.08);
  border: 1px solid rgba(25,211,179,.22);
  padding: 7px 15px;
  border-radius: 999px;
  margin-bottom: 24px;
}

.live-dot {
  width: 8px;
  height: 8px;
  background: var(--primary);
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(25,211,179,.2);
  animation: pulse 1.8s infinite;
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(25,211,179,.15); }
  50% { box-shadow: 0 0 0 8px rgba(25,211,179,.04); }
}

.category-hero h1 {
  font-size: clamp(34px, 5.8vw, 60px);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: 1px;
  max-width: 900px;
  margin: 0 0 20px;
  color: #F5FAFF;
}

.category-hero h1 span {
  display: block;
  color: var(--primary);
}

.hero-desc {
  max-width: 860px;
  color: #C6D3E0;
  font-size: 17px;
  line-height: 1.9;
  margin-bottom: 30px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 14px;
  margin-bottom: 34px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(18,25,34,.7);
  border: 1px solid var(--line-soft);
  border-radius: 999px;
  padding: 8px 16px;
  color: #D8E2EE;
  font-size: 14px;
  font-weight: 600;
}

.hero-tag i {
  color: var(--primary);
  font-size: 13px;
}

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

.btn {
  font-weight: 700;
  border-radius: var(--radius-sm);
  padding: 13px 26px;
  line-height: 1.4;
  font-size: 15px;
  transition: all .25s ease;
}

.btn-primary-brand {
  background: var(--primary);
  color: #081018;
  border: 0;
  box-shadow: 0 8px 20px rgba(25,211,179,.14);
}

.btn-primary-brand:hover {
  background: var(--primary-bright);
  color: #081018;
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(25,211,179,.22);
}

.btn-ghost-brand {
  background: transparent;
  color: #E9F1FA;
  border: 1px solid rgba(255,255,255,.16);
}

.btn-ghost-brand:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
}

.btn:focus-visible,
.form-control:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.section {
  padding: var(--section-space) 0;
}

.section-alt {
  background: #0f151b;
}

.section-head {
  margin-bottom: 42px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1.6px;
  margin-bottom: 12px;
  text-transform: uppercase;
}

.eyebrow:before {
  content: "";
  width: 24px;
  height: 2px;
  background: var(--primary);
  border-radius: 99px;
}

.section-title {
  font-size: clamp(26px, 3.4vw, 38px);
  font-weight: 900;
  line-height: 1.25;
  margin: 0 0 12px;
  color: #F4F9FF;
}

.section-sub {
  color: var(--text-muted);
  font-size: 16px;
  max-width: 720px;
  line-height: 1.9;
  margin: 0;
}

.data-band {
  margin-top: -38px;
  position: relative;
  z-index: 5;
}

.data-panel {
  background: var(--bg-panel);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-card);
  padding: 34px 38px;
}

.data-panel .row {
  align-items: center;
}

.data-item {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 0 0 22px;
}

.data-panel .col-lg-3:last-child .data-item {
  margin-bottom: 0;
}

.data-icon {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(25,211,179,.12);
  border: 1px solid rgba(25,211,179,.18);
  color: var(--primary);
  font-size: 18px;
}

.data-item:nth-child(2) .data-icon {
  background: rgba(125,108,255,.12);
  border-color: rgba(125,108,255,.18);
  color: #A89BFF;
}

.data-item:nth-child(3) .data-icon {
  background: rgba(242,194,92,.12);
  border-color: rgba(242,194,92,.18);
  color: var(--gold);
}

.data-item b {
  display: block;
  font-size: 16px;
  color: var(--text-main);
  margin-bottom: 2px;
}

.data-item span {
  display: block;
  color: var(--text-muted);
  font-size: 13px;
  line-height: 1.6;
}

@media (min-width: 992px) {
  .data-item {
    margin: 0;
  }
}

.content-card {
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  padding: 28px 26px;
  height: 100%;
  transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}

.content-card:hover {
  transform: translateY(-3px);
  border-color: rgba(25,211,179,.24);
  box-shadow: var(--shadow-card);
}

.card-icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  color: #fff;
  background: rgba(25,211,179,.12);
  border: 1px solid rgba(25,211,179,.24);
  color: var(--primary);
  font-size: 18px;
}

.content-card:nth-child(2) .card-icon {
  background: rgba(125,108,255,.12);
  border-color: rgba(125,108,255,.25);
  color: var(--accent-purple);
}

.content-card:nth-child(3) .card-icon {
  background: rgba(242,194,92,.12);
  border-color: rgba(242,194,92,.22);
  color: var(--gold);
}

.content-card h3 {
  font-size: 19px;
  font-weight: 800;
  margin-bottom: 10px;
}

.content-card p {
  color: var(--text-muted);
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
}

.dynamic-wrap {
  align-items: stretch;
}

.cover-feature-card {
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 100%;
  transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
}

.cover-feature-card:hover {
  transform: translateY(-4px);
  border-color: rgba(25,211,179,.28);
  box-shadow: var(--shadow-lift);
}

.cover-feature-media {
  position: relative;
  min-height: 280px;
  overflow: hidden;
  background-color: #101820;
}

.cover-feature-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  inset: 0;
  transition: transform .4s ease;
}

.cover-feature-card:hover .cover-feature-media img {
  transform: scale(1.04);
}

.cover-feature-media:after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(18,28,39,.08) 0%, rgba(10,17,23,.72) 100%);
}

.media-tag {
  position: absolute;
  left: 22px;
  top: 22px;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(10,18,24,.68);
  backdrop-filter: blur(6px);
  border: 1px solid rgba(255,255,255,.16);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  padding: 7px 15px;
  border-radius: 999px;
}

.media-tag i {
  color: var(--primary);
}

.cover-feature-body {
  padding: 36px;
}

.card-kicker {
  display: block;
  color: var(--primary);
  font-weight: 700;
  letter-spacing: 1.4px;
  font-size: 12px;
  margin-bottom: 12px;
}

.cover-feature-body h3 {
  font-size: clamp(22px, 2.3vw, 30px);
  font-weight: 900;
  line-height: 1.35;
  margin-bottom: 18px;
  max-width: 660px;
}

.cover-feature-body > p {
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.95;
  margin-bottom: 20px;
}

.feature-check-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-bottom: 30px;
  max-width: 680px;
}

.feature-check-list li {
  display: flex;
  gap: 10px;
  color: #D3DFEB;
  font-size: 15px;
  line-height: 1.8;
}

.feature-check-list li i {
  color: var(--primary);
  margin-top: 4px;
  font-size: 14px;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary);
  font-weight: 700;
  font-size: 15px;
}

.text-link i {
  transition: transform .25s ease;
}

.text-link:hover i {
  transform: translateX(4px);
}

.side-card-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  height: 100%;
}

.side-info-card {
  display: flex;
  gap: 14px;
  align-items: stretch;
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  padding: 18px;
  transition: transform .25s ease, border-color .25s ease, background .25s ease;
}

.side-info-card:hover {
  background: var(--bg-hover);
  border-color: rgba(25,211,179,.28);
  transform: translateX(3px);
}

.side-info-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  background: rgba(25,211,179,.12);
  font-size: 16px;
}

.side-info-card:nth-child(2) .side-info-icon {
  background: rgba(125,108,255,.11);
  color: var(--accent-purple);
}

.side-info-card:nth-child(3) .side-info-icon {
  background: rgba(242,194,92,.11);
  color: var(--gold);
}

.side-info-card:nth-child(4) .side-info-icon {
  background: rgba(255,93,108,.11);
  color: var(--alert);
}

.side-info-card h3 {
  font-size: 16px;
  font-weight: 800;
  margin-bottom: 4px;
  color: #EAF2FA;
}

.side-info-card p {
  color: var(--text-muted);
  font-size: 13px;
  line-height: 1.7;
  margin: 0;
}

.step-guide {
  background: #0E141B;
  border-top: 1px solid rgba(255,255,255,.05);
  border-bottom: 1px solid rgba(255,255,255,.05);
}

.step-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  height: 100%;
  padding: 34px 30px;
  transition: all .25s ease;
  overflow: hidden;
}

.step-card:nth-child(2) {
  border-top: 3px solid rgba(25,211,179,.4);
}

.step-card:nth-child(3) {
  border-top: 3px solid rgba(125,108,255,.4);
}

.step-card:nth-child(4) {
  border-top: 3px solid rgba(242,194,92,.4);
}

.step-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255,255,255,.18);
  box-shadow: var(--shadow-card);
}

.step-num {
  font-size: 13px;
  font-weight: 900;
  color: rgba(255,255,255,.2);
  letter-spacing: 1px;
  margin-bottom: 26px;
  display: block;
}

.step-card h3 {
  font-size: 18px;
  font-weight: 800;
  margin-bottom: 10px;
}

.step-card p {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.8;
  margin: 0;
}

.step-card i {
  position: absolute;
  right: 24px;
  top: 28px;
  color: rgba(255,255,255,.06);
  font-size: 30px;
}

.dual-feature {
  background: var(--bg-panel);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-xl);
  overflow: hidden;
  position: relative;
}

.dual-feature-media {
  position: relative;
  height: 100%;
  min-height: 360px;
  background-color: #121922;
}

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

.dual-feature-media:after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent 20%, rgba(12,17,21,.56) 100%);
}

.dual-feature-body {
  padding: 64px 54px;
}

.dual-feature-body h2 {
  font-size: clamp(24px, 2.5vw, 32px);
  font-weight: 900;
  line-height: 1.35;
  margin: 0 0 20px;
  color: #F4F9FF;
}

.dual-feature-body p {
  color: var(--text-muted);
  font-size: 16px;
  line-height: 1.9;
  margin-bottom: 28px;
}

.member-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
  margin-bottom: 32px;
}

.member-tags span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 13px;
  border-radius: 999px;
  background: rgba(255,255,255,.04);
  border: 1px solid var(--line-soft);
  color: #B8C9D8;
  font-size: 13px;
  font-weight: 600;
}

.member-tags span i {
  color: var(--gold);
}

.faq-section {
  background: #0F151D;
}

.faq-heading {
  margin-bottom: 36px;
}

.faq-accordion {
  background: transparent;
}

.accordion-item {
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--line-soft);
  border-radius: 0;
}

.accordion-item:first-of-type {
  border-top: 1px solid var(--line-soft);
  border-radius: 0;
}

.accordion-button {
  background: transparent;
  color: #E7EEF7;
  font-size: 16px;
  font-weight: 700;
  padding: 22px 54px 22px 0;
  border: 0;
  box-shadow: none;
  border-radius: 0;
  position: relative;
}

.accordion-button:focus {
  box-shadow: none;
  outline: 2px solid var(--primary);
  outline-offset: -2px;
  z-index: 2;
}

.accordion-button:not(.collapsed) {
  background: transparent;
  color: var(--primary-bright);
  box-shadow: none;
}

.accordion-button::after {
  content: "\F4FE";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  background-image: none;
  width: auto;
  height: auto;
  color: var(--primary);
  font-size: 18px;
  transition: transform .3s ease;
  position: absolute;
  right: 8px;
}

.accordion-button:not(.collapsed)::after {
  transform: rotate(45deg);
  color: var(--primary);
}

.accordion-body {
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.95;
  padding: 6px 74px 26px 0;
  background: transparent;
  border: 0;
}

.cta-band {
  position: relative;
  background-color: #0d141a;
  background-image: linear-gradient(120deg, rgba(12,17,21,.92) 0%, rgba(12,17,21,.75) 100%), url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  padding: 80px 0;
  overflow: hidden;
}

.cta-band:before {
  content: "";
  position: absolute;
  width: 420px;
  height: 420px;
  left: -120px;
  bottom: -220px;
  border-radius: 50%;
  background: rgba(25,211,179,.16);
  filter: blur(90px);
}

.cta-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  background: rgba(18,25,34,.7);
  border: 1px solid rgba(255,255,255,.08);
  backdrop-filter: blur(8px);
  border-radius: var(--radius-xl);
  padding: 60px 36px;
}

.cta-inner h2 {
  font-size: clamp(26px, 4vw, 40px);
  font-weight: 900;
  margin: 0 0 16px;
  color: #F7FBFF;
}

.cta-inner h2 span {
  color: var(--primary);
}

.cta-inner p {
  max-width: 720px;
  margin: 0 auto 30px;
  color: var(--text-muted);
  font-size: 16px;
  line-height: 1.9;
}

.cta-btn-group {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
}

.cta-note {
  margin-top: 18px;
  color: var(--text-muted);
  font-size: 13px;
}

footer {
  background: #0a0e13;
  color: var(--text-muted);
  border-top: 1px solid rgba(255,255,255,.05);
}

.footer-main {
  padding: 64px 0 44px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 20px;
  font-weight: 900;
  color: #F2F6FC;
  margin-bottom: 16px;
}

.fbadge {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--primary);
  color: #081018;
  font-size: 14px;
  font-weight: 900;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
}

.footer-desc {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.9;
  max-width: 340px;
  margin: 0;
}

.footer-col-title {
  color: #DCE7F2;
  font-size: 15px;
  font-weight: 800;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255,255,255,.08);
  position: relative;
}

.footer-col-title:after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 30px;
  height: 2px;
  background: var(--primary);
  border-radius: 99px;
}

.footer-links li,
.footer-contact-list li {
  list-style: none;
  margin-bottom: 10px;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: color .2s ease, transform .2s ease;
}

.footer-links a i {
  color: var(--primary);
  font-size: 12px;
}

.footer-links a:hover {
  color: var(--primary);
  transform: translateX(3px);
}

.footer-contact-list li {
  color: var(--text-muted);
  font-size: 14px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.footer-contact-list i {
  color: var(--primary);
  margin-top: 5px;
  font-size: 15px;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.06);
  padding: 20px 0;
  background: rgba(0,0,0,.18);
  color: #7E90A3;
  font-size: 13px;
}

.footer-bottom a {
  color: #9AACBE;
}

@media (max-width: 991.98px) {
  :root {
    --section-space: 70px;
  }

  .navbar-collapse {
    background: rgba(13, 18, 24, 0.98);
    border: 1px solid var(--line-soft);
    border-radius: var(--radius-lg);
    margin-top: 14px;
    padding: 20px 18px 24px;
  }

  .navbar-nav {
    align-items: flex-start;
    width: 100%;
  }

  .nav-item {
    width: 100%;
    border-bottom: 1px solid rgba(255,255,255,.05);
  }

  .nav-link {
    width: 100%;
    padding: 12px 8px !important;
    font-size: 16px;
    border-radius: 8px;
  }

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

  .nav-cta {
    width: 100%;
    margin: 18px 0 0;
    padding: 16px 0 0;
    border-left: 0;
    border-top: 1px solid var(--line-soft);
  }

  .nav-login {
    flex: 1;
    text-align: center;
    border: 1px solid var(--line-strong);
    border-radius: var(--radius-sm);
  }

  .nav-register {
    flex: 1;
    justify-content: center;
  }

  .brand-text strong {
    font-size: 16px;
  }

  .category-hero {
    padding: 96px 0 76px;
  }

  .category-hero h1 {
    font-size: 38px;
  }

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

  .data-item {
    margin-bottom: 16px;
  }

  .cover-feature-body,
  .dual-feature-body {
    padding: 30px 26px;
  }

  .dual-feature-media {
    min-height: 280px;
  }

  .dual-feature-media:after {
    background: linear-gradient(180deg, transparent 26%, rgba(12,17,21,.65) 100%);
  }

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

@media (max-width: 767.98px) {
  :root {
    --section-space: 58px;
  }

  .announce-bar {
    font-size: 12px;
    padding: 6px 42px;
  }

  .navbar .container {
    padding-left: 14px;
    padding-right: 14px;
  }

  .brand {
    gap: 8px;
  }

  .brand-mark {
    width: 38px;
    height: 38px;
    border-radius: 11px;
    font-size: 14px;
  }

  .brand-text strong {
    font-size: 15px;
  }

  .brand-text small {
    font-size: 10px;
  }

  .category-hero h1 {
    font-size: 32px;
    line-height: 1.22;
  }

  .hero-desc {
    font-size: 15px;
    line-height: 1.85;
  }

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

  .data-panel .row {
    gap: 4px;
  }

  .data-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding: 12px 0;
    border-bottom: 1px solid rgba(255,255,255,.04);
    margin-bottom: 0;
  }

  .data-item:last-child {
    border-bottom: 0;
  }

  .content-card {
    padding: 24px;
  }

  .cover-feature-media {
    min-height: 210px;
  }

  .cover-feature-body {
    padding: 24px 22px;
  }

  .side-card-list {
    gap: 12px;
  }

  .step-card {
    padding: 26px 22px;
  }

  .dual-feature-body {
    padding: 28px 22px;
  }

  .cta-inner {
    padding: 44px 22px;
  }

  .cta-btn-group .btn {
    width: 100%;
    justify-content: center;
  }

  .footer-main {
    padding: 44px 0 30px;
  }
}

@media (max-width: 575.98px) {
  .announce-bar {
    display: flex;
    align-items: flex-start;
    text-align: left;
    gap: 6px;
    padding: 8px 40px 8px 12px;
    line-height: 1.5;
    font-size: 12px;
  }

  .announce-close {
    right: 2px;
  }

  .brand-text small {
    display: none;
  }

  .section-title {
    font-size: 26px;
  }

  .hero-tags {
    gap: 8px;
  }

  .hero-tag {
    padding: 6px 10px;
    font-size: 12px;
  }

  .cover-feature-media {
    min-height: 190px;
  }

  .dual-feature-media {
    min-height: 220px;
  }

  .accordion-button {
    font-size: 15px;
    padding-right: 44px;
  }

  .accordion-body {
    padding-right: 0;
  }
}