/* roulang page: index */
:root {
  --bg-deep: #070F1B;
  --bg-deep2: #0B182B;
  --glass: rgba(255, 255, 255, 0.045);
  --glass-soft: rgba(255, 255, 255, 0.03);
  --glass-line: rgba(160, 210, 255, 0.16);
  --sky: #58C8FF;
  --aqua: #24E0C0;
  --blue: #2E90FF;
  --amber: #FBBD6A;
  --danger: #FF7C7C;
  --text-hi: #EEF7FF;
  --text-mid: rgba(220, 238, 255, 0.72);
  --text-low: rgba(220, 238, 255, 0.44);
  --font-body-size: 16px;
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --card-shadow: 0 20px 48px rgba(0, 0, 0, .25);
  --glow-cyan: 0 0 0 1px rgba(36, 224, 192, .18), 0 0 32px rgba(36, 224, 192, .14);
  --transition: all .25s ease;
  --sidebar-width: 264px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg-deep);
  color: var(--text-hi);
  font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Alibaba PuHuiTi", sans-serif;
  font-size: var(--font-body-size);
  line-height: 1.8;
  overflow-x: hidden;
}

p {
  margin: 0 0 12px;
}

h1, h2, h3, h4, h5 {
  margin: 0;
  line-height: 1.35;
  font-weight: 700;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

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

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

button {
  font-family: inherit;
  border: 0;
  background: transparent;
  color: inherit;
  cursor: pointer;
}

input, select, textarea {
  font-family: inherit;
  letter-spacing: .02em;
}

::selection {
  background: rgba(36, 224, 192, .28);
  color: #fff;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--aqua);
  outline-offset: 3px;
  border-radius: 6px;
}

.content-frame {
  max-width: 1280px;
  margin: 0 auto;
  padding-left: 32px;
  padding-right: 32px;
  position: relative;
}

.section {
  padding: 100px 0;
}

.glass-panel {
  background: var(--glass);
  border: 1px solid var(--glass-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--card-shadow);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

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

.main-content {
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background:
    radial-gradient(circle at 15% 8%, rgba(46, 144, 255, .09), transparent 26%),
    radial-gradient(circle at 95% 30%, rgba(36, 224, 192, .06), transparent 28%),
    var(--bg-deep);
}

/* ========== 桌面端左侧导航 ========== */
.sidebar {
  width: var(--sidebar-width);
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 1050;
  display: flex;
  flex-direction: column;
  background: linear-gradient(180deg, rgba(18, 36, 58, .78), rgba(8, 17, 30, .96));
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-right: 1px solid rgba(160, 210, 255, .12);
}

.sidebar::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(circle at 20% 12%, rgba(88, 200, 255, .12), transparent 28%);
}

.sidebar__brand {
  height: 88px;
  padding: 16px 22px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid rgba(160, 210, 255, .12);
  position: relative;
}

.brand-anchor {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--aqua), var(--blue));
  color: #042033;
  font-size: 19px;
  box-shadow: 0 0 26px rgba(36, 224, 192, .32);
}

.brand-name {
  font-size: 19px;
  font-weight: 800;
  letter-spacing: .03em;
  color: var(--text-hi);
}

.sidebar__nav {
  flex: 1;
  overflow-y: auto;
  padding: 18px 0 12px;
  position: relative;
}

.nav-group {
  font-size: 12px;
  color: var(--text-low);
  padding: 18px 24px 8px;
  line-height: 1.4;
  letter-spacing: .12em;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 4px 12px;
  padding: 12px 14px;
  border-radius: 14px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-mid);
  position: relative;
  transition: var(--transition);
}

.nav-item i {
  width: 22px;
  text-align: center;
  font-size: 16px;
  opacity: .8;
}

.nav-item:hover {
  color: #fff;
  background: rgba(88, 200, 255, .08);
}

.nav-item.active {
  color: var(--sky);
  background: linear-gradient(90deg, rgba(36, 224, 192, .1), rgba(88, 200, 255, .05));
  border: 1px solid rgba(88, 200, 255, .12);
}

.nav-item.active::before {
  content: "";
  position: absolute;
  left: -12px;
  top: 20%;
  bottom: 20%;
  width: 3px;
  border-radius: 0 4px 4px 0;
  background: var(--aqua);
  box-shadow: 0 0 12px rgba(36, 224, 192, .6);
}

.sidebar__foot {
  padding: 18px 22px 22px;
  border-top: 1px solid rgba(160, 210, 255, .1);
  position: relative;
}

.sidebar__foot .side-clock {
  display: flex;
  gap: 8px;
  color: var(--text-low);
  font-size: 13px;
  line-height: 1.7;
}

.sidebar__foot .copyright-mini {
  margin-top: 12px;
  color: rgba(220, 238, 255, .2);
  font-size: 12px;
}

/* ========== 移动端头部 ========== */
.mobile-header {
  display: none;
  position: sticky;
  top: 0;
  z-index: 1020;
  height: 64px;
  background: rgba(7, 15, 27, .82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(160, 210, 255, .14);
}

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

.mobile-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  color: var(--text-hi);
}

.mobile-logo i {
  width: 32px;
  height: 32px;
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--aqua), var(--blue));
  color: #042033;
  font-size: 15px;
}

.mobile-user {
  display: flex;
  align-items: center;
  gap: 10px;
}

.mobile-menu-btn {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: var(--text-hi);
  background: rgba(255, 255, 255, .06);
  border: 1px solid var(--glass-line);
  transition: var(--transition);
}

.mobile-menu-btn:hover {
  border-color: var(--aqua);
  color: var(--aqua);
}

/* ========== 移动端抽屉菜单 ========== */
.mobile-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(82vw, 340px);
  z-index: 1080;
  background: rgba(6, 13, 25, .96);
  backdrop-filter: blur(22px);
  -webkit-backdrop-filter: blur(22px);
  border-left: 1px solid rgba(160, 210, 255, .15);
  transform: translateX(105%);
  transition: transform .32s ease;
  padding: 22px;
}

.mobile-drawer.is-open {
  transform: translateX(0);
}

.drawer__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 22px;
  border-bottom: 1px solid rgba(160, 210, 255, .12);
  margin-bottom: 20px;
}

.drawer__brand {
  font-size: 18px;
  font-weight: 800;
  color: var(--text-hi);
  display: flex;
  align-items: center;
  gap: 8px;
}

.drawer__close {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-mid);
  background: rgba(255, 255, 255, .06);
  border: 1px solid var(--glass-line);
  font-size: 18px;
}

.drawer__nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.drawer-group {
  font-size: 12px;
  color: var(--text-low);
  padding: 18px 4px 6px;
  letter-spacing: .12em;
}

.drawer__nav .nav-item {
  margin: 0;
  padding: 14px 16px;
  background: rgba(255, 255, 255, .055);
  border: 1px solid rgba(160, 210, 255, .1);
  border-radius: 15px;
  color: var(--text-mid);
}

.drawer__nav .nav-item.active {
  color: var(--sky);
  background: rgba(36, 224, 192, .12);
  border-color: rgba(36, 224, 192, .22);
}

.drawer__note {
  margin-top: 34px;
  padding: 18px;
  border-radius: 16px;
  background: rgba(255, 255, 255, .035);
  color: var(--text-low);
  font-size: 13px;
  line-height: 1.8;
  border: 1px solid rgba(160, 210, 255, .1);
}

.mobile-mask {
  position: fixed;
  inset: 0;
  z-index: 1070;
  background: rgba(2, 7, 13, .68);
  opacity: 0;
  visibility: hidden;
  transition: all .3s ease;
}

.mobile-mask.show {
  opacity: 1;
  visibility: visible;
}

/* ========== 通用按钮 ========== */
.btn-main,
.btn-outline,
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 15px;
  line-height: 1.4;
  padding: 12px 28px;
  border: 1px solid transparent;
  transition: var(--transition);
  text-align: center;
  cursor: pointer;
  white-space: nowrap;
}

.btn-main {
  background: linear-gradient(135deg, var(--aqua), var(--blue));
  color: #042033;
  box-shadow: 0 8px 24px rgba(36, 224, 192, .18);
}

.btn-main:hover {
  filter: brightness(1.08);
  color: #042033;
  transform: translateY(-2px);
  box-shadow: 0 0 0 1px rgba(36, 224, 192, .3), 0 8px 32px rgba(36, 224, 192, .2);
}

.btn-outline {
  background: rgba(255, 255, 255, .04);
  border-color: rgba(220, 238, 255, .3);
  color: var(--text-hi);
}

.btn-outline:hover {
  background: rgba(36, 224, 192, .1);
  border-color: var(--aqua);
  color: #fff;
  transform: translateY(-2px);
}

.btn-ghost {
  padding: 8px 14px;
  background: transparent;
  color: var(--text-mid);
  font-weight: 500;
}

.btn-ghost .arrow-ico {
  transition: transform .2s ease;
}

.btn-ghost:hover {
  color: var(--aqua);
}

.btn-ghost:hover .arrow-ico {
  transform: translateX(4px);
}

/* ========== Hero 首屏 ========== */
.hero {
  position: relative;
  padding: 104px 0 90px;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  opacity: .4;
}

.hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(7, 15, 27, .84), rgba(7, 15, 27, .25)),
    linear-gradient(0deg, rgba(7, 15, 27, .92), transparent 50%);
}

.hero__inner {
  z-index: 2;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(36, 224, 192, .08);
  border: 1px solid rgba(36, 224, 192, .2);
  color: var(--aqua);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .05em;
}

.hero__title {
  margin: 22px 0 20px;
  font-size: clamp(38px, 5vw, 56px);
  font-weight: 800;
  line-height: 1.22;
  color: var(--text-hi);
  max-width: 760px;
}

.hero__lead {
  font-size: 18px;
  color: var(--text-mid);
  line-height: 1.9;
  max-width: 640px;
  margin-bottom: 30px;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-bottom: 22px;
}

.hero__quick {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 6px;
}

.hero__quick span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-low);
}

.hero__quick span i {
  color: var(--amber);
  font-size: 11px;
}

/* ========== 入口状态可视化面板 ========== */
.entrance-visual {
  position: relative;
  padding: 18px 0 18px 24px;
}

.entrance-visual::before {
  content: "";
  position: absolute;
  right: 0;
  top: 50%;
  width: 260px;
  height: 260px;
  transform: translateY(-50%);
  background: radial-gradient(circle, rgba(36, 224, 192, .18), transparent 60%);
  opacity: .8;
  pointer-events: none;
}

.visual-panel {
  position: relative;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(160, 210, 255, .16);
  background: linear-gradient(145deg, rgba(255, 255, 255, .075), rgba(255, 255, 255, .025));
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 24px;
  box-shadow: var(--card-shadow);
}

.visual-panel__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(160, 210, 255, .14);
  color: var(--text-hi);
}

.visual-panel__head .left-label {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 15px;
}

.visual-panel__head .left-label i {
  color: var(--amber);
}

.visual-panel__status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--aqua);
}

.visual-panel__status i {
  font-size: 12px;
}

.vp-card {
  position: relative;
  margin-top: 16px;
  padding: 16px 18px;
  border-radius: 16px;
  background: rgba(255, 255, 255, .045);
  border: 1px solid rgba(160, 210, 255, .14);
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.vp-card:hover {
  background: rgba(88, 200, 255, .08);
  border-color: rgba(88, 200, 255, .28);
}

.vp-card--main {
  background: linear-gradient(135deg, rgba(36, 224, 192, .16), rgba(46, 144, 255, .08));
  border: 1px solid rgba(36, 224, 192, .26);
}

.vp-card__info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.vp-card__icon {
  width: 36px;
  height: 36px;
  border-radius: 11px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(160, 210, 255, .16);
  font-size: 15px;
  color: var(--sky);
}

.vp-card--main .vp-card__icon {
  background: rgba(36, 224, 192, .18);
  border-color: rgba(36, 224, 192, .3);
  color: var(--aqua);
}

.vp-card__info .vp-name {
  font-weight: 700;
  font-size: 15px;
  display: block;
  color: var(--text-hi);
  line-height: 1.4;
}

.vp-card__info .vp-desc {
  font-size: 12px;
  color: var(--text-low);
  display: block;
  line-height: 1.5;
}

.vp-card__em {
  font-family: "DIN Alternate", "Inter", sans-serif;
  font-size: 26px;
  font-weight: 700;
  color: var(--aqua);
  line-height: 1;
}

.vp-card__em small {
  font-size: 12px;
  margin-left: 2px;
  color: var(--text-mid);
  font-family: inherit;
}

/* ========== 指标看板 ========== */
.metrics-section {
  position: relative;
  padding: 80px 0 76px;
  background: rgba(255, 255, 255, .02);
  border-top: 1px solid rgba(160, 210, 255, .07);
  border-bottom: 1px solid rgba(160, 210, 255, .07);
}

.metric-card {
  height: 100%;
  padding: 28px 24px;
  border-radius: var(--radius-md);
  background: var(--glass);
  border: 1px solid var(--glass-line);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.metric-card::after {
  content: "";
  position: absolute;
  right: -30px;
  top: -30px;
  width: 110px;
  height: 110px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(88, 200, 255, .12), transparent 70%);
}

.metric-card:hover {
  border-color: rgba(88, 200, 255, .4);
  transform: translateY(-5px);
}

.metric-card__icon {
  width: 44px;
  height: 44px;
  border-radius: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(251, 189, 106, .18), rgba(88, 200, 255, .1));
  border: 1px solid rgba(251, 189, 106, .25);
  color: var(--amber);
  font-size: 18px;
  margin-bottom: 16px;
}

.metric-card__num {
  font-family: "DIN Alternate", "Inter", sans-serif;
  font-size: clamp(38px, 3.6vw, 58px);
  font-weight: 700;
  line-height: 1;
  color: var(--text-hi);
  letter-spacing: -.02em;
}

.metric-card__mid {
  display: block;
  font-size: 16px;
  color: var(--aqua);
  margin-top: 8px;
  font-weight: 600;
}

.metric-card__text {
  color: var(--text-low);
  font-size: 13px;
  line-height: 1.7;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid rgba(160, 210, 255, .1);
}

/* ========== 通用区块标题 ========== */
.section-head {
  margin-bottom: 44px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}

.section-head__left {
  max-width: 720px;
}

.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 14px;
  font-weight: 700;
  color: var(--amber);
  letter-spacing: .08em;
  margin-bottom: 12px;
}

.section-kicker::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 10px var(--amber);
}

.section-title {
  font-size: clamp(27px, 3vw, 40px);
  font-weight: 800;
  line-height: 1.3;
  color: var(--text-hi);
  margin-bottom: 10px;
}

.section-desc {
  color: var(--text-mid);
  font-size: 16px;
  line-height: 1.8;
}

/* ========== 服务 / 频道卡片区 ========== */
.service-section {
  padding: 88px 0;
}

.service-card {
  height: 100%;
  background: var(--glass);
  border: 1px solid var(--glass-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.service-card:hover {
  border-color: rgba(36, 224, 192, .32);
  box-shadow: var(--glow-cyan);
  transform: translateY(-6px);
  background: rgba(255, 255, 255, .06);
}

.service-card--large {
  background: linear-gradient(160deg, rgba(255, 255, 255, .07), rgba(255, 255, 255, .02));
}

.service-card__thumb {
  height: 198px;
  overflow: hidden;
  position: relative;
}

.service-card__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .45s ease;
}

.service-card--large .service-card__thumb {
  height: 230px;
}

.service-card:hover .service-card__thumb img {
  transform: scale(1.04);
}

.service-card__thumb::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(7, 15, 27, .6));
}

.service-card__main {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 22px 22px 24px;
}

.service-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.tag-mini {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  background: rgba(36, 224, 192, .08);
  border: 1px solid rgba(36, 224, 192, .16);
  color: var(--aqua);
}

.tag-mini--amber {
  background: rgba(251, 189, 106, .08);
  border-color: rgba(251, 189, 106, .16);
  color: var(--amber);
}

.tag-mini--blue {
  background: rgba(46, 144, 255, .1);
  border-color: rgba(46, 144, 255, .2);
  color: var(--sky);
}

.service-card__main h3 {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-hi);
  line-height: 1.5;
}

.service-card__main p {
  color: var(--text-mid);
  font-size: 15px;
  line-height: 1.8;
  flex: 1;
  margin-bottom: 18px;
}

.service-card__action {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--aqua);
  font-weight: 700;
  font-size: 15px;
}

.service-card__action .arrow-ico {
  transition: transform .2s ease;
}

.service-card:hover .service-card__action .arrow-ico {
  transform: translateX(4px);
}

.service-iconcard {
  height: 100%;
  background: var(--glass);
  border: 1px solid var(--glass-line);
  border-radius: var(--radius-lg);
  padding: 30px 24px;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.service-iconcard:hover {
  transform: translateY(-5px);
  border-color: rgba(88, 200, 255, .36);
  box-shadow: 0 12px 30px rgba(0, 0, 0, .2);
}

.service-iconcard__icon {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 21px;
  margin-bottom: 16px;
  color: var(--aqua);
  background: linear-gradient(135deg, rgba(36, 224, 192, .16), rgba(46, 144, 255, .1));
  border: 1px solid rgba(36, 224, 192, .2);
}

.service-iconcard h3 {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-hi);
}

.service-iconcard p {
  color: var(--text-mid);
  font-size: 14px;
  line-height: 1.8;
  flex: 1;
  margin-bottom: 18px;
}

/* ========== 最新资讯区 ========== */
.news-section {
  padding: 92px 0;
  background: rgba(11, 24, 43, .36);
  border-top: 1px solid rgba(160, 210, 255, .07);
  border-bottom: 1px solid rgba(160, 210, 255, .07);
}

.news-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.news-item {
  padding: 22px 24px;
  transition: var(--transition);
  background: var(--glass);
  border: 1px solid var(--glass-line);
  border-radius: 18px;
}

.news-item:hover {
  border-color: rgba(36, 224, 192, .32);
  background: rgba(255, 255, 255, .06);
}

.news-item__meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
  font-size: 13px;
  color: var(--text-low);
}

.news-item__meta time {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.news-item h3 {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.55;
  margin-bottom: 8px;
}

.news-item h3 a {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-item h3 a:hover {
  color: var(--aqua);
}

.news-item__excerpt {
  color: var(--text-low);
  font-size: 14px;
  margin-bottom: 14px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-read {
  color: var(--aqua);
  font-size: 14px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.news-read .arrow-ico {
  transition: transform .2s ease;
}

.news-read:hover .arrow-ico {
  transform: translateX(4px);
}

.news-empty {
  padding: 62px 30px;
  text-align: center;
}

.news-empty__icon {
  font-size: 40px;
  color: var(--aqua);
  margin-bottom: 16px;
}

.news-empty h3 {
  font-size: 20px;
  color: var(--text-hi);
  margin-bottom: 10px;
}

.news-empty p {
  color: var(--text-low);
}

.side-widgets {
  display: flex;
  flex-direction: column;
  gap: 22px;
  position: sticky;
  top: 90px;
}

.side-widget {
  background: var(--glass);
  border: 1px solid var(--glass-line);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.side-widget__title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-hi);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.side-widget__title i {
  color: var(--amber);
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag-cloud a {
  padding: 6px 14px;
  background: rgba(255, 255, 255, .045);
  border: 1px solid rgba(160, 210, 255, .12);
  border-radius: 999px;
  font-size: 13px;
  color: var(--text-mid);
  transition: var(--transition);
}

.tag-cloud a:hover {
  color: var(--aqua);
  border-color: var(--aqua);
  background: rgba(36, 224, 192, .08);
}

.anchor-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.anchor-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 0;
  border-bottom: 1px solid rgba(160, 210, 255, .08);
}

.anchor-list li:last-child {
  border-bottom: 0;
}

.anchor-list a {
  color: var(--text-mid);
  font-size: 14px;
}

.anchor-list a:hover {
  color: var(--aqua);
}

.anchor-list li i {
  color: var(--aqua);
  font-size: 13px;
}

/* ========== 路径对比区 ========== */
.compare-section {
  padding: 96px 0;
}

.compare-panel {
  height: 100%;
  padding: 30px 30px 26px;
  background: rgba(255, 255, 255, .035);
  border: 1px solid rgba(160, 210, 255, .13);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}

.compare-panel:hover {
  border-color: rgba(88, 200, 255, .25);
}

.compare-panel__flag {
  display: inline-block;
  font-size: 13px;
  padding: 5px 14px;
  border-radius: 999px;
  font-weight: 700;
  margin-bottom: 14px;
  background: rgba(255, 255, 255, .06);
  color: var(--text-mid);
  border: 1px solid rgba(160, 210, 255, .14);
}

.compare-panel--now {
  background: linear-gradient(160deg, rgba(36, 224, 192, .1), rgba(255, 255, 255, .03));
  border-color: rgba(36, 224, 192, .3);
  box-shadow: var(--glow-cyan);
}

.compare-panel--now .compare-panel__flag {
  background: rgba(36, 224, 192, .14);
  border-color: rgba(36, 224, 192, .3);
  color: var(--aqua);
}

.compare-title {
  font-size: 22px;
  font-weight: 800;
  color: var(--text-hi);
  margin-bottom: 14px;
}

.compare-list {
  list-style: none;
  padding: 0;
  margin: 0 0 18px;
}

.compare-list li {
  position: relative;
  padding: 7px 0 7px 30px;
  color: var(--text-mid);
  font-size: 15px;
  line-height: 1.75;
}

.compare-list li i {
  position: absolute;
  left: 0;
  top: 12px;
  width: 18px;
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  border-radius: 50%;
}

.compare-panel--before .compare-list li i {
  background: rgba(255, 124, 124, .1);
  color: var(--danger);
  border: 1px solid rgba(255, 124, 124, .25);
}

.compare-panel--now .compare-list li i {
  background: rgba(36, 224, 192, .14);
  color: var(--aqua);
  border: 1px solid rgba(36, 224, 192, .3);
}

.compare-divider {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
}

.compare-divider span {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  color: #06303a;
  background: linear-gradient(135deg, var(--sky), var(--aqua));
  box-shadow: 0 0 0 6px rgba(36, 224, 192, .1), 0 0 40px rgba(36, 224, 192, .2);
  font-size: 16px;
}

/* ========== FAQ区 ========== */
.faq-section {
  padding: 96px 0;
  background: rgba(11, 24, 43, .38);
  border-top: 1px solid rgba(160, 210, 255, .07);
  border-bottom: 1px solid rgba(160, 210, 255, .07);
}

.faq-intro {
  padding-right: 30px;
}

.faq-intro .passage {
  color: var(--text-mid);
  font-size: 16px;
  line-height: 1.9;
  margin-bottom: 24px;
}

.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.accordion-item {
  background: var(--glass);
  border: 1px solid var(--glass-line) !important;
  border-radius: 16px !important;
  overflow: hidden;
  transition: var(--transition);
}

.accordion-item:hover {
  border-color: rgba(88, 200, 255, .3) !important;
}

.accordion-button {
  background: transparent !important;
  color: var(--text-hi) !important;
  padding: 18px 20px;
  font-size: 16px;
  font-weight: 600;
  box-shadow: none !important;
  border-radius: 16px !important;
  display: flex;
  align-items: center;
  gap: 12px;
}

.accordion-button:not(.collapsed) {
  background: rgba(36, 224, 192, .04) !important;
  color: var(--aqua) !important;
}

.accordion-button:focus {
  box-shadow: none !important;
}

.question-tag {
  width: 30px;
  height: 30px;
  border-radius: 9px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(36, 224, 192, .12);
  border: 1px solid rgba(36, 224, 192, .24);
  color: var(--aqua);
  font-size: 13px;
  font-weight: 800;
  flex-shrink: 0;
}

.accordion-button .question-tag {
  margin-right: 2px;
}

.accordion-sign {
  position: relative;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(160, 210, 255, .18);
  margin-left: auto;
  flex-shrink: 0;
}

.accordion-sign::before,
.accordion-sign::after {
  content: "";
  position: absolute;
  background: var(--text-mid);
  border-radius: 2px;
  transition: var(--transition);
}

.accordion-sign::before {
  left: 6px;
  right: 6px;
  top: 11px;
  height: 1.5px;
}

.accordion-sign::after {
  top: 6px;
  bottom: 6px;
  left: 11px;
  width: 1.5px;
}

.accordion-button:not(.collapsed) .accordion-sign {
  border-color: rgba(36, 224, 192, .4);
  background: rgba(36, 224, 192, .1);
}

.accordion-button:not(.collapsed) .accordion-sign::after {
  transform: scaleY(0);
}

.accordion-body {
  padding: 4px 22px 22px 62px;
  color: var(--text-mid);
  font-size: 15px;
  line-height: 1.85;
  border-top: 1px solid rgba(160, 210, 255, .07);
}

.accordion-body p {
  margin-bottom: 0;
}

/* ========== 表单联系区 ========== */
.contact-section {
  padding: 100px 0 92px;
}

.contact-wrap {
  background: linear-gradient(145deg, rgba(255, 255, 255, .05), rgba(255, 255, 255, .015));
  border: 1px solid rgba(160, 210, 255, .16);
  border-radius: var(--radius-lg);
  padding: 44px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: var(--card-shadow);
  position: relative;
  overflow: hidden;
}

.contact-wrap::before {
  content: "";
  position: absolute;
  left: -100px;
  bottom: -100px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(46, 144, 255, .15), transparent 65%);
  pointer-events: none;
}

.contact-side h2 {
  font-size: clamp(26px, 2.4vw, 36px);
  font-weight: 800;
  color: var(--text-hi);
  margin-bottom: 12px;
}

.contact-side .contact-sub {
  color: var(--text-mid);
  font-size: 16px;
  line-height: 1.85;
  margin-bottom: 22px;
}

.contact-side__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 13px;
}

.contact-side__list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  color: var(--text-mid);
  font-size: 15px;
  line-height: 1.7;
}

.contact-side__list li i {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: rgba(36, 224, 192, .1);
  border: 1px solid rgba(36, 224, 192, .28);
  color: var(--aqua);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  margin-top: 5px;
  flex-shrink: 0;
}

.contact-form-wrap {
  background: rgba(0, 0, 0, .16);
  border: 1px solid rgba(160, 210, 255, .12);
  border-radius: 22px;
  padding: 26px;
}

.form-label {
  color: var(--text-mid);
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 7px;
}

.form-label i {
  color: var(--amber);
  font-size: 11px;
}

.form-control,
.form-select {
  background: rgba(0, 0, 0, .24) !important;
  border: 1px solid rgba(160, 210, 255, .15) !important;
  color: var(--text-hi) !important;
  border-radius: 13px !important;
  padding: 12px 15px !important;
  font-size: 15px !important;
  transition: var(--transition) !important;
}

.form-control::placeholder {
  color: rgba(220, 238, 255, .34) !important;
}

.form-control:focus,
.form-select:focus {
  border-color: var(--aqua) !important;
  box-shadow: 0 0 0 3px rgba(36, 224, 192, .14) !important;
  background: rgba(0, 0, 0, .3) !important;
}

.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%2358C8FF' viewBox='0 0 16 16'%3E%3Cpath d='M8 10.5 3.5 6h9z'/%3E%3C/svg%3E") !important;
}

textarea.form-control {
  min-height: 120px;
  resize: vertical;
}

.form-note {
  display: block;
  margin-top: 12px;
  font-size: 13px;
  color: var(--text-low);
}

.form-submit-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

/* ========== 页脚 ========== */
.footer {
  margin-top: auto;
  background: rgba(4, 10, 18, .9);
  border-top: 1px solid rgba(160, 210, 255, .1);
  padding: 74px 0 0;
}

.footer-main {
  padding-bottom: 38px;
}

.footer-brand {
  font-size: 22px;
  font-weight: 800;
  color: var(--text-hi);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.footer-brand i {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--aqua), var(--blue));
  color: #042033;
  font-size: 17px;
}

.footer-desc {
  color: var(--text-low);
  font-size: 14px;
  line-height: 1.85;
  margin-bottom: 18px;
  max-width: 390px;
}

.footer-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-hi);
  margin-bottom: 18px;
  letter-spacing: .03em;
}

.footer-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-list li {
  margin-bottom: 9px;
}

.footer-list a {
  color: var(--text-low);
  font-size: 14px;
}

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

.footer-contact li {
  display: flex;
  gap: 10px;
  margin-bottom: 14px;
  color: var(--text-low);
  font-size: 14px;
}

.footer-contact li i {
  color: var(--aqua);
  margin-top: 4px;
}

.footer-bottom {
  border-top: 1px solid rgba(160, 210, 255, .1);
  padding: 20px 0;
  text-align: center;
  color: rgba(220, 238, 255, .22);
  font-size: 13px;
}

.footer-bottom span {
  margin: 0 8px;
}

/* ========== 响应式 ========== */
@media (max-width: 1199.98px) {
  .section {
    padding: 82px 0;
  }

  .content-frame {
    padding-left: 26px;
    padding-right: 26px;
  }

  .contact-wrap {
    padding: 30px;
  }
}

@media (max-width: 991.98px) {
  .sidebar {
    display: none;
  }

  .main-content {
    margin-left: 0;
  }

  .mobile-header {
    display: block;
  }

  .hero {
    padding: 80px 0 64px;
  }

  .hero__title {
    font-size: clamp(34px, 5.2vw, 48px);
  }

  .entrance-visual {
    margin-top: 40px;
  }

  .section {
    padding: 74px 0;
  }

  .compare-panel {
    margin-bottom: 20px;
  }

  .compare-divider {
    display: flex;
    margin: 8px 0 32px;
  }

  .faq-intro {
    padding-right: 0;
    margin-bottom: 36px;
  }

  .contact-form-wrap {
    margin-top: 24px;
  }
}

@media (max-width: 767.98px) {
  .mobile-header__inner {
    padding: 0 14px;
  }

  .content-frame {
    padding-left: 18px;
    padding-right: 18px;
  }

  .hero {
    padding: 64px 0 46px;
  }

  .hero__title {
    font-size: 32px;
    line-height: 1.3;
  }

  .hero__lead {
    font-size: 16px;
  }

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

  .hero__actions .btn-main,
  .hero__actions .btn-outline {
    width: 100%;
  }

  .metrics-section {
    padding: 48px 0;
  }

  .metric-card {
    padding: 20px;
  }

  .section {
    padding: 62px 0;
  }

  .section-head {
    margin-bottom: 30px;
  }

  .service-card__thumb,
  .service-card--large .service-card__thumb {
    height: 170px;
  }

  .news-section {
    padding: 62px 0;
  }

  .side-widgets {
    position: static;
    margin-top: 22px;
  }

  .compare-section,
  .faq-section,
  .contact-section {
    padding: 62px 0;
  }

  .contact-wrap {
    padding: 20px;
  }

  .accordion-body {
    padding: 2px 16px 18px 48px;
  }

  .footer {
    padding-top: 50px;
  }
}

@media (max-width: 575.98px) {
  .hero__title {
    font-size: 29px;
  }

  .hero__quick {
    flex-direction: column;
    gap: 6px;
  }

  .brand-name {
    font-size: 17px;
  }

  .mobile-logo span {
    font-size: 16px;
  }

  .metric-card__num {
    font-size: 40px;
  }

  .section-title {
    font-size: 25px;
  }

  .btn-main,
  .btn-outline {
    padding: 11px 20px;
    font-size: 14px;
  }

  .form-submit-row {
    flex-direction: column;
    align-items: stretch;
  }

  .form-submit-row .btn-main {
    width: 100%;
  }
}

/* roulang page: article */
:root {
  --bg-deep: #070F1B;
  --bg-deep2: #0B182B;
  --glass: rgba(255,255,255,0.045);
  --glass-soft: rgba(255,255,255,0.03);
  --glass-line: rgba(160,210,255,0.16);
  --sky: #58C8FF;
  --aqua: #24E0C0;
  --blue: #2E90FF;
  --amber: #FBBD6A;
  --danger: #FF7C7C;
  --text-hi: #EEF7FF;
  --text-mid: rgba(220,238,255,0.72);
  --text-low: rgba(220,238,255,0.44);
  --font-body-size: 16px;
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --card-shadow: 0 20px 48px rgba(0,0,0,.25);
  --glow-cyan: 0 0 0 1px rgba(36,224,192,.18), 0 0 32px rgba(36,224,192,.14);
  --transition: all .25s ease;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Alibaba PuHuiTi", sans-serif;
  background: var(--bg-deep);
  color: var(--text-hi);
  font-size: var(--font-body-size);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: var(--sky); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--aqua); }
img { max-width: 100%; height: auto; }
button, input, select, textarea { font-family: inherit; }
ul { padding: 0; margin: 0; list-style: none; }
.content-frame {
  width: 100%;
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}
.app-sidebar {
  width: 264px;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 1040;
  background: linear-gradient(180deg, rgba(18,36,58,.72), rgba(8,17,30,.95));
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-right: 1px solid var(--glass-line);
  display: flex;
  flex-direction: column;
  padding: 0 16px;
  transition: transform .35s ease;
}
.sidebar-brand {
  height: 88px;
  display: flex;
  align-items: center;
  padding: 0 10px;
  border-bottom: 1px solid rgba(160,210,255,.08);
  flex-shrink: 0;
}
.sidebar-brand__inner {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 19px;
  font-weight: 700;
  color: var(--text-hi);
  letter-spacing: .02em;
}
.sidebar-brand__inner i {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(36,224,192,.18), rgba(46,144,255,.20));
  border: 1px solid rgba(36,224,192,.24);
  border-radius: 12px;
  color: var(--aqua);
  font-size: 17px;
  box-shadow: 0 0 20px rgba(36,224,192,.12);
}
.sidebar__nav {
  flex: 1;
  overflow-y: auto;
  padding: 18px 0 12px;
}
.sidebar__nav::-webkit-scrollbar { width: 5px; }
.sidebar__nav::-webkit-scrollbar-thumb { background: rgba(255,255,255,.08); border-radius: 8px; }
.nav-group {
  font-size: 12px;
  color: var(--text-low);
  letter-spacing: .08em;
  padding: 14px 12px 8px;
}
.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 11px 14px;
  border-radius: var(--radius-sm);
  color: var(--text-mid);
  font-size: 15px;
  font-weight: 500;
  position: relative;
  transition: var(--transition);
  margin-bottom: 2px;
}
.nav-item i { width: 20px; text-align: center; font-size: 15px; color: var(--text-low); transition: var(--transition); }
.nav-item:hover { background: rgba(255,255,255,.06); color: var(--text-hi); }
.nav-item:hover i { color: var(--sky); }
.nav-item.active {
  background: linear-gradient(90deg, rgba(36,224,192,.10), rgba(46,144,255,.05));
  color: var(--text-hi);
}
.nav-item.active i { color: var(--aqua); }
.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 18%;
  bottom: 18%;
  width: 2px;
  background: var(--aqua);
  border-radius: 8px;
  box-shadow: 0 0 12px rgba(36,224,192,.55);
}
.sidebar-bottom {
  padding: 16px 12px 14px;
  border-top: 1px solid rgba(160,210,255,.06);
  font-size: 13px;
  color: var(--text-low);
  line-height: 1.7;
  flex-shrink: 0;
}
.sidebar-bottom i { width: 18px; color: var(--sky); }
.sidebar-bottom .time-line { display: block; margin-top: 2px; color: var(--text-mid); }

.app-main {
  margin-left: 264px;
  min-height: 100vh;
  position: relative;
}
.mobile-topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 64px;
  z-index: 1050;
  display: none;
  align-items: center;
  justify-content: space-between;
  padding: 0 18px;
  background: rgba(7,15,27,.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-line);
}
.mobile-topbar__brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text-hi);
  font-size: 18px;
  font-weight: 700;
}
.mobile-topbar__brand i {
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(36,224,192,.14);
  border: 1px solid rgba(36,224,192,.22);
  border-radius: 10px;
  color: var(--aqua);
  font-size: 14px;
}
.mobile-menu-btn {
  background: rgba(255,255,255,.05);
  border: 1px solid var(--glass-line);
  border-radius: 12px;
  color: var(--text-mid);
  width: 42px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  cursor: pointer;
  transition: var(--transition);
}
.mobile-menu-btn:hover { border-color: rgba(36,224,192,.45); color: var(--aqua); }
.sidebar-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.55);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 1035;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}
body.sidebar-open .sidebar-overlay { opacity: 1; visibility: visible; }

.btn-brand {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid rgba(36,224,192,.4);
  background: linear-gradient(135deg, #24E0C0, #2E90FF);
  color: #042033;
  font-weight: 700;
  padding: 11px 28px;
  border-radius: 999px;
  transition: var(--transition);
  cursor: pointer;
  font-size: 15px;
  text-decoration: none;
  line-height: 1.4;
}
.btn-brand:hover {
  color: #031B15;
  filter: brightness(1.08);
  box-shadow: 0 0 0 1px rgba(36,224,192,.28), 0 8px 32px rgba(36,224,192,.18);
  transform: translateY(-1px);
}
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid rgba(220,238,255,.25);
  background: rgba(255,255,255,.03);
  color: var(--text-hi);
  font-weight: 600;
  padding: 10px 24px;
  border-radius: 999px;
  transition: var(--transition);
  cursor: pointer;
  font-size: 15px;
  text-decoration: none;
}
.btn-ghost:hover {
  border-color: rgba(36,224,192,.6);
  background: rgba(36,224,192,.08);
  color: #fff;
  box-shadow: 0 0 24px rgba(36,224,192,.10);
  transform: translateY(-1px);
}
.btn-brand:focus-visible,
.btn-ghost:focus-visible {
  outline: 3px solid rgba(36,224,192,.4);
  outline-offset: 2px;
}

.page-banner {
  position: relative;
  min-height: 320px;
  display: flex;
  align-items: flex-end;
  padding: 64px 0 28px;
  overflow: hidden;
}
.page-banner__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}
.page-banner__shade {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(180deg, rgba(7,15,27,.32) 0%, rgba(7,15,27,.6) 60%, var(--bg-deep) 100%),
    radial-gradient(900px 320px at 15% 0%, rgba(36,224,192,.10), transparent 70%);
}
.page-banner__inner {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 1050px;
  margin: 0 auto;
}
.breadcrumb-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-low);
  margin-bottom: 18px;
}
.breadcrumb-nav a { color: rgba(238,247,255,.62); transition: var(--transition); }
.breadcrumb-nav a:hover { color: var(--aqua); }
.breadcrumb-nav i { font-size: 11px; opacity: .6; }
.breadcrumb-nav .current { color: var(--text-hi); font-weight: 600; }
.article-page-title {
  font-size: clamp(28px, 4.2vw, 44px);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: .01em;
  max-width: 920px;
  color: var(--text-hi);
  margin: 0 0 18px;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 22px;
  font-size: 14px;
  color: var(--text-mid);
}
.article-meta span { display: inline-flex; align-items: center; gap: 7px; }
.article-meta i { color: var(--sky); opacity: .8; }
.article-cat-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(36,224,192,.10);
  border: 1px solid rgba(36,224,192,.22);
  border-radius: 999px;
  padding: 5px 14px;
  font-size: 13px;
  font-weight: 600;
  color: var(--aqua);
}

.article-main-section {
  position: relative;
  padding: 48px 0 72px;
}
.article-body {
  max-width: 780px;
  margin: 0 auto;
  color: var(--text-mid);
  font-size: 16px;
  line-height: 2.0;
}
.article-body > h1,
.article-body > h2,
.article-body > h3,
.article-body > h4 {
  color: var(--text-hi);
  font-weight: 700;
  line-height: 1.4;
  margin: 1.6em 0 .5em;
}
.article-body h1 { font-size: 28px; margin-top: .8em; }
.article-body h2 { font-size: 25px; }
.article-body h3 { font-size: 21px; }
.article-body h4 { font-size: 18px; }
.article-body p { margin-bottom: 1.2em; }
.article-body a { color: var(--sky); border-bottom: 1px solid rgba(88,200,255,.3); transition: var(--transition); }
.article-body a:hover { color: var(--aqua); border-color: rgba(36,224,192,.65); }
.article-body img, .article-body video {
  border-radius: 16px;
  margin: 20px 0 24px;
  box-shadow: var(--card-shadow);
}
.article-body ul, .article-body ol {
  margin: 0 0 1.4em;
  padding-left: 1.5em;
}
.article-body ul { list-style: disc; }
.article-body ol { list-style: decimal; }
.article-body li { margin-bottom: 6px; }
.article-body blockquote {
  border-left: 3px solid var(--aqua);
  background: rgba(36,224,192,.06);
  padding: 12px 20px;
  margin: 0 0 1.4em;
  border-radius: 0 12px 12px 0;
  color: rgba(220,238,255,.78);
}
.article-body table {
  width: 100%;
  margin: 0 0 1.6em;
  border-collapse: collapse;
  font-size: 15px;
}
.article-body th,
.article-body td {
  border: 1px solid rgba(160,210,255,.14);
  padding: 10px 14px;
  color: var(--text-mid);
}
.article-body th {
  background: rgba(36,224,192,.06);
  color: var(--text-hi);
  font-weight: 600;
}
.article-body code {
  background: rgba(255,255,255,.06);
  border-radius: 6px;
  padding: 2px 8px;
  font-size: .9em;
  color: var(--sky);
}
.article-body hr {
  border: 0;
  height: 1px;
  background: rgba(160,210,255,.12);
  margin: 32px 0;
}

.article-empty {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
  background: rgba(255,255,255,.03);
  border: 1px solid var(--glass-line);
  border-radius: var(--radius-lg);
  padding: 64px 24px;
  box-shadow: var(--card-shadow);
}
.article-empty i {
  font-size: 52px;
  color: var(--sky);
  opacity: .75;
  display: inline-block;
  margin-bottom: 20px;
}
.article-empty h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-hi);
  margin-bottom: 12px;
}
.article-empty p { color: var(--text-mid); margin-bottom: 26px; font-size: 15px; }

.article-actions {
  max-width: 780px;
  margin: 42px auto 0;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid rgba(160,210,255,.10);
  padding-top: 28px;
}
.article-actions .group { display: flex; flex-wrap: wrap; gap: 10px; }

.guide-more-section {
  padding: 72px 0 76px;
  border-top: 1px solid rgba(160,210,255,.08);
}
.section-head {
  margin-bottom: 36px;
}
.section-eyebrow {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--aqua);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.section-eyebrow::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--aqua);
  box-shadow: 0 0 10px rgba(36,224,192,.7);
}
.section-head h2 {
  font-size: clamp(26px, 3vw, 38px);
  font-weight: 700;
  color: var(--text-hi);
  line-height: 1.3;
  margin-bottom: 12px;
}
.section-head p { color: var(--text-mid); max-width: 640px; }
.guide-card {
  height: 100%;
  background: rgba(255,255,255,.035);
  border: 1px solid var(--glass-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.guide-card:hover {
  border-color: rgba(36,224,192,.36);
  box-shadow: 0 20px 48px rgba(0,0,0,.28), 0 0 0 1px rgba(36,224,192,.08);
  transform: translateY(-4px);
}
.guide-card__cover {
  position: relative;
  height: 200px;
  overflow: hidden;
  display: block;
}
.guide-card__cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .45s ease;
}
.guide-card:hover .guide-card__cover img { transform: scale(1.04); }
.guide-card__cover::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(7,15,27,.72));
}
.guide-card__body { padding: 26px 26px 24px; flex: 1; display: flex; flex-direction: column; }
.guide-card__body h3 { font-size: 20px; color: var(--text-hi); font-weight: 700; margin-bottom: 10px; }
.guide-card__body p { color: var(--text-mid); font-size: 15px; line-height: 1.8; flex: 1; margin-bottom: 18px; }
.btn-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--sky);
  font-weight: 600;
  font-size: 15px;
  transition: var(--transition);
  border: 0;
  background: transparent;
  padding: 0;
}
.btn-more i { transition: transform .2s ease; font-size: 13px; }
.btn-more:hover { color: var(--aqua); }
.btn-more:hover i { transform: translateX(4px); }

.faq-section {
  padding: 72px 0 76px;
  background: rgba(255,255,255,.015);
  border-top: 1px solid rgba(160,210,255,.08);
  border-bottom: 1px solid rgba(160,210,255,.08);
}
.faq-wrap { max-width: 900px; margin: 0 auto; }
.accordion-item {
  background: transparent;
  border: 0;
  margin-bottom: 12px;
  border-radius: var(--radius-md) !important;
}
.accordion-item:not(:first-of-type) { border-top: 0; }
.accordion-button {
  background: rgba(255,255,255,.035);
  border: 1px solid var(--glass-line);
  border-radius: var(--radius-md) !important;
  padding: 20px 22px;
  font-size: 16px;
  font-weight: 700;
  color: var(--text-hi);
  box-shadow: none;
  transition: var(--transition);
}
.accordion-button:not(.collapsed) {
  background: rgba(36,224,192,.06);
  border-color: rgba(36,224,192,.24);
  color: var(--text-hi);
  box-shadow: none;
}
.accordion-button:not(.collapsed)::after,
.accordion-button::after {
  background-image: none;
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  color: var(--aqua);
  content: "\2b";
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  transform: none;
  transition: transform .25s ease;
}
.accordion-button:not(.collapsed)::after {
  content: "\f068";
  color: var(--aqua);
}
.accordion-button:hover { border-color: rgba(36,224,192,.4); }
.accordion-button:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(36,224,192,.16);
}
.accordion-collapse { border-radius: 0 0 var(--radius-md) var(--radius-md); }
.accordion-body {
  padding: 4px 24px 22px;
  color: var(--text-mid);
  font-size: 15px;
  line-height: 1.9;
}

.cta-banner-section {
  padding: 76px 0;
  position: relative;
  overflow: hidden;
}
.cta-banner__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .22;
  z-index: 0;
}
.cta-banner__shade {
  position: absolute;
  inset: 0;
  background: radial-gradient(800px 260px at 88% 0%, rgba(46,144,255,.14), transparent 70%),
              radial-gradient(700px 280px at 10% 100%, rgba(36,224,192,.10), transparent 65%),
              rgba(7,15,27,.55);
  z-index: 1;
}
.cta-card-inner {
  position: relative;
  z-index: 2;
  background: rgba(255,255,255,.04);
  border: 1px solid var(--glass-line);
  border-radius: var(--radius-lg);
  padding: 42px 44px;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: var(--card-shadow);
}
.cta-card-inner h2 {
  font-size: clamp(23px, 2.8vw, 34px);
  font-weight: 700;
  color: var(--text-hi);
  margin-bottom: 8px;
}
.cta-card-inner p { color: var(--text-mid); margin-bottom: 0; }

.footer {
  position: relative;
  z-index: 1;
  background: linear-gradient(180deg, rgba(8,17,30,.6), #050B14);
  border-top: 1px solid rgba(160,210,255,.08);
  padding-top: 70px;
}
.footer-main { padding-bottom: 34px; }
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 20px;
  font-weight: 700;
  color: var(--text-hi);
  margin-bottom: 18px;
}
.footer-brand i {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(36,224,192,.2), rgba(46,144,255,.18));
  border: 1px solid rgba(36,224,192,.24);
  border-radius: 12px;
  color: var(--aqua);
  font-size: 16px;
  box-shadow: 0 0 20px rgba(36,224,192,.12);
}
.footer-desc { color: var(--text-mid); font-size: 15px; line-height: 1.9; max-width: 320px; margin: 0; }
.footer-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-hi);
  margin-bottom: 16px;
}
.footer-list li { margin-bottom: 9px; }
.footer-list a {
  color: var(--text-mid);
  font-size: 14px;
  transition: var(--transition);
}
.footer-list a:hover { color: var(--aqua); padding-left: 3px; }
.footer-contact li {
  color: var(--text-mid);
  font-size: 14px;
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-bottom: 12px;
  line-height: 1.7;
}
.footer-contact i { color: var(--sky); margin-top: 4px; width: 16px; text-align: center; }
.footer-bottom {
  border-top: 1px solid rgba(160,210,255,.07);
  padding: 20px 0 22px;
  font-size: 14px;
  color: var(--text-low);
  text-align: center;
}

@media (max-width: 1199.98px) {
  .content-frame { padding-left: 20px; padding-right: 20px; }
  .page-banner { min-height: 300px; }
}
@media (max-width: 991.98px) {
  .mobile-topbar { display: flex; }
  .app-main { margin-left: 0; padding-top: 64px; }
  .app-sidebar {
    transform: translateX(-110%);
    -webkit-transform: translateX(-110%);
    box-shadow: 22px 0 60px rgba(0,0,0,.4);
  }
  body.sidebar-open .app-sidebar { transform: translateX(0); }
  body.sidebar-open .sidebar-overlay { opacity: 1; visibility: visible; }
  .content-frame { padding-left: 18px; padding-right: 18px; }
  .page-banner { min-height: 280px; padding-top: 40px 0 24px; }
}
@media (max-width: 767.98px) {
  .article-page-title { font-size: 26px; line-height: 1.35; }
  .article-meta { gap: 10px 14px; }
  .article-meta span { font-size: 13px; }
  .page-banner { min-height: 260px; padding: 38px 0 22px; align-items: flex-end; }
  .section-head h2 { font-size: 25px; }
  .cta-card-inner { padding: 30px 22px; }
  .article-actions { justify-content: center; }
  .article-actions .group { justify-content: center; }
  .cta-card-inner .text-end { text-align: left !important; margin-top: 18px; }
}
@media (max-width: 575.98px) {
  .content-frame { padding-left: 14px; padding-right: 14px; }
  .article-body { font-size: 15px; line-height: 1.9; }
  .article-body img, .article-body video { border-radius: 12px; }
  .guide-card__cover { height: 170px; }
  .article-actions .btn-brand,
  .article-actions .btn-ghost { width: 100%; }
}

/* roulang page: category1 */
:root {
  --bg-deep: #070F1B;
  --bg-deep2: #0B182B;
  --glass: rgba(255,255,255,.045);
  --glass-soft: rgba(255,255,255,.03);
  --glass-line: rgba(160,210,255,.16);
  --sky: #58C8FF;
  --aqua: #24E0C0;
  --blue: #2E90FF;
  --amber: #FBBD6A;
  --danger: #FF7C7C;
  --text-hi: #EEF7FF;
  --text-mid: rgba(220,238,255,.72);
  --text-low: rgba(220,238,255,.44);
  --font-body-size: 16px;
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --card-shadow: 0 20px 48px rgba(0,0,0,.25);
  --glow-cyan: 0 0 0 1px rgba(36,224,192,.18), 0 0 32px rgba(36,224,192,.14);
  --transition: all .25s ease;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans CJK SC","Alibaba PuHuiTi",sans-serif;
  font-size: var(--font-body-size);
  line-height: 1.7;
  color: var(--text-hi);
  background:
    radial-gradient(circle at 12% 0%, rgba(36,224,192,.08), transparent 22rem),
    radial-gradient(circle at 88% 10%, rgba(46,144,255,.10), transparent 24rem),
    var(--bg-deep);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--sky); text-decoration: none; transition: var(--transition); }
img { max-width: 100%; display: block; }
h1, h2, h3, h4, h5, h6 { color: var(--text-hi); margin: 0 0 .5em; }
p { margin: 0 0 1rem; }
.content-frame {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}
.section { padding: 88px 0; }
.section-sm { padding: 56px 0; }
.section-heading { margin-bottom: 40px; }
.section-heading p:last-child { margin-bottom: 0; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--aqua);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .12em;
  margin-bottom: 12px;
}
.eyebrow::before { content: ""; width: 20px; height: 2px; background: linear-gradient(90deg, var(--aqua), transparent); border-radius: 2px; }
.section-title { font-size: clamp(28px, 3.2vw, 38px); line-height: 1.25; font-weight: 800; }
.section-lead { color: var(--text-mid); font-size: 17px; max-width: 720px; line-height: 1.9; }
.content-frame .row { --bs-gutter-x: 1.5rem; --bs-gutter-y: 1.5rem; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  border-radius: 999px;
  padding: 11px 28px;
  font-weight: 700;
  line-height: 1.5;
  border: 0;
  box-shadow: none;
  transition: var(--transition);
  white-space: nowrap;
}
.btn-primary, .btn-mint {
  background: linear-gradient(135deg, var(--aqua), var(--blue));
  color: #042033;
}
.btn-primary:hover, .btn-primary:focus, .btn-mint:hover, .btn-mint:focus {
  color: #042033;
  filter: brightness(1.08);
  transform: translateY(-2px);
  box-shadow: 0 0 0 1px rgba(36,224,192,.3), 0 10px 32px rgba(36,224,192,.2);
}
.btn-ghost {
  background: transparent;
  border: 1px solid rgba(150,210,255,.4);
  color: var(--text-hi);
}
.btn-ghost:hover, .btn-ghost:focus {
  border-color: var(--aqua);
  color: #fff;
  background: rgba(36,224,192,.08);
  transform: translateY(-2px);
}
.btn-link-line {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-hi);
  font-weight: 600;
  padding: 6px 0;
}
.btn-link-line i { transition: transform .25s ease; }
.btn-link-line:hover i { transform: translateX(4px); }

/* Sidebar */
.sidebar {
  position: fixed;
  top: 0; left: 0; bottom: 0;
  width: 264px;
  z-index: 1040;
  background: linear-gradient(180deg, rgba(16,32,55,.82), rgba(6,15,28,.96));
  backdrop-filter: blur(20px);
  border-right: 1px solid rgba(160,210,255,.14);
  transition: transform .35s ease;
}
.sidebar__inner {
  height: 100%;
  display: flex;
  flex-direction: column;
  padding: 22px 14px 18px;
  overflow-y: auto;
}
.sidebar .brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 52px;
  padding: 0 10px;
  margin-bottom: 28px;
  font-size: 20px;
  font-weight: 800;
  color: var(--text-hi);
  letter-spacing: .02em;
}
.sidebar .brand:hover { color: var(--text-hi); }
.brand-icon {
  width: 42px; height: 42px;
  border-radius: 15px;
  flex: 0 0 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #052334;
  font-size: 18px;
  background: linear-gradient(135deg, var(--aqua), var(--blue));
  box-shadow: 0 6px 20px rgba(36,224,192,.25);
}
.nav-group {
  font-size: 12px;
  color: var(--text-low);
  letter-spacing: .08em;
  padding: 12px 10px 6px;
}
.sidebar__nav { display: flex; flex-direction: column; gap: 4px; }
.nav-item {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 14px 11px 16px;
  border-radius: 14px;
  color: var(--text-mid);
  font-size: 15px;
  font-weight: 500;
  transition: var(--transition);
  background: transparent;
}
.nav-item i { width: 20px; text-align: center; color: var(--text-low); transition: var(--transition); }
.nav-item:hover { color: var(--text-hi); background: rgba(255,255,255,.055); }
.nav-item:hover i { color: var(--sky); }
.nav-item.active {
  color: var(--text-hi);
  background: linear-gradient(90deg, rgba(36,224,192,.14), rgba(46,144,255,.04));
}
.nav-item.active::before {
  content: "";
  position: absolute;
  left: 0; top: 50%;
  transform: translateY(-50%);
  width: 3px; height: 20px;
  border-radius: 3px;
  background: linear-gradient(180deg, var(--aqua), var(--blue));
  box-shadow: 0 0 14px rgba(36,224,192,.5);
}
.nav-item.active i { color: var(--aqua); }
.sidebar__meta {
  margin-top: auto;
  padding: 18px 12px 0;
  border-top: 1px solid rgba(160,210,255,.1);
  color: var(--text-low);
  font-size: 13px;
  line-height: 1.9;
}
.sidebar__meta i { width: 18px; color: var(--aqua); margin-right: 2px; }
.mobile-topbar {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 64px;
  z-index: 1035;
  align-items: center;
  justify-content: space-between;
  padding: 0 18px;
  background: rgba(7,15,27,.9);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(160,210,255,.14);
}
.mobile-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 18px;
  color: var(--text-hi);
}
.mobile-brand .brand-icon { width: 36px; height: 36px; border-radius: 12px; flex-basis: 36px; font-size: 15px; }
.navbar-toggler-custom {
  width: 42px; height: 42px;
  border-radius: 12px;
  border: 1px solid rgba(160,210,255,.2);
  background: rgba(255,255,255,.04);
  color: var(--text-hi);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  transition: var(--transition);
}
.navbar-toggler-custom:hover { border-color: var(--aqua); color: var(--aqua); }
.mobile-mask {
  position: fixed;
  inset: 0;
  z-index: 1036;
  background: rgba(3,8,15,.6);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}
body.nav-open .mobile-mask { opacity: 1; visibility: visible; }
body.nav-open { overflow: hidden; }
.main-content {
  min-height: 100vh;
  margin-left: 264px;
  display: flex;
  flex-direction: column;
}

/* Banner */
.cat-banner {
  position: relative;
  padding: 110px 0 92px;
  background-size: cover;
  background-position: center;
  overflow: hidden;
  border-bottom: 1px solid rgba(160,210,255,.12);
}
.cat-banner::after {
  content: "";
  position: absolute; inset: 0;
  background:
    linear-gradient(100deg, rgba(7,15,27,.98) 0%, rgba(7,15,27,.88) 36%, rgba(8,20,38,.55) 100%),
    linear-gradient(180deg, rgba(7,15,27,.2) 0%, rgba(7,15,27,.55) 100%);
  z-index: 1;
}
.banner-content { position: relative; z-index: 2; }
.crumb {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 14px;
  color: var(--text-low);
  margin-bottom: 24px;
}
.crumb a { color: var(--text-mid); }
.crumb a:hover { color: var(--aqua); }
.crumb i { font-size: 11px; color: var(--text-low); }
.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 15px;
  border-radius: 999px;
  background: rgba(36,224,192,.1);
  border: 1px solid rgba(36,224,192,.25);
  color: var(--aqua);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .04em;
}
.banner-copy { max-width: 800px; }
.banner-copy h1 {
  font-size: clamp(38px, 5.2vw, 58px);
  font-weight: 800;
  line-height: 1.2;
  margin: 22px 0 18px;
}
.banner-lead {
  font-size: 18px;
  color: var(--text-mid);
  line-height: 1.9;
  max-width: 680px;
  margin-bottom: 30px;
}
.banner-actions { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }

/* Metrics */
.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0,1fr));
  gap: 20px;
}
.metric-card {
  position: relative;
  background: var(--glass);
  border: 1px solid var(--glass-line);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  overflow: hidden;
  transition: var(--transition);
}
.metric-card::before {
  content: "";
  position: absolute;
  right: -36px; top: -36px;
  width: 110px; height: 110px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(36,224,192,.16), transparent 68%);
}
.metric-card:hover {
  border-color: rgba(36,224,192,.38);
  transform: translateY(-4px);
  box-shadow: var(--glow-cyan);
}
.metric-index {
  font-size: 12px;
  color: var(--text-low);
  font-weight: 700;
  letter-spacing: .08em;
}
.metric-card i {
  display: inline-flex;
  width: 48px; height: 48px;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(36,224,192,.16), rgba(46,144,255,.12));
  color: var(--aqua);
  font-size: 20px;
  margin: 16px 0 14px;
}
.metric-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 6px;
}
.metric-card p {
  color: var(--text-mid);
  font-size: 14px;
  line-height: 1.7;
  margin: 0;
}

/* Media story */
.media-story {
  position: relative;
  min-height: 430px;
  border-radius: var(--radius-lg);
  background-size: cover;
  background-position: center;
  border: 1px solid var(--glass-line);
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  box-shadow: var(--card-shadow);
}
.media-story::before {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(7,15,27,.1) 0%, rgba(7,15,27,.25) 45%, rgba(7,15,27,.9) 100%);
}
.media-story__inner {
  position: relative;
  padding: 32px;
  z-index: 1;
}
.media-story__inner p {
  color: rgba(240,248,255,.92);
  font-size: 16px;
  max-width: 500px;
}
.chip-light { margin-bottom: 14px; }

/* Mini text cards */
.mini-card {
  background: var(--glass);
  border: 1px solid var(--glass-line);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  gap: 16px;
  transition: var(--transition);
  height: 100%;
}
.mini-card:hover {
  border-color: rgba(46,144,255,.38);
  box-shadow: var(--glow-cyan);
  transform: translateY(-3px);
}
.mini-card__icon {
  flex: 0 0 44px;
  width: 44px; height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  background: rgba(46,144,255,.14);
  color: var(--sky);
  font-size: 18px;
}
.mini-card h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 5px;
}
.mini-card p { margin: 0; color: var(--text-mid); font-size: 14px; line-height: 1.7; }

/* Service visual + topics */
.topic-visual {
  position: relative;
  min-height: 500px;
  border-radius: var(--radius-lg);
  background-size: cover;
  background-position: center;
  overflow: hidden;
  border: 1px solid var(--glass-line);
  box-shadow: var(--card-shadow);
}
.topic-visual::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(200deg, rgba(7,15,27,.12) 10%, rgba(7,15,27,.72) 96%);
}
.topic-visual__label {
  position: absolute;
  left: 22px; bottom: 22px;
  z-index: 2;
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  max-width: 280px;
}
.topic-stack { display: flex; flex-direction: column; gap: 16px; }
.topic-item {
  display: flex;
  gap: 16px;
  padding: 22px 18px;
  background: var(--glass-soft);
  border: 1px solid rgba(160,210,255,.12);
  border-radius: var(--radius-md);
  transition: var(--transition);
}
.topic-item:hover {
  border-color: rgba(36,224,192,.4);
  background: rgba(36,224,192,.05);
}
.topic-item__icon {
  flex: 0 0 46px;
  width: 46px; height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 15px;
  background: rgba(36,224,192,.12);
  border: 1px solid rgba(36,224,192,.16);
  color: var(--aqua);
  font-size: 20px;
}
.topic-item h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 4px;
}
.topic-item p { margin: 0; color: var(--text-mid); font-size: 14px; line-height: 1.75; }

/* Scene area */
.scene-copy-panel {
  background: var(--glass);
  border: 1px solid var(--glass-line);
  border-radius: var(--radius-lg);
  padding: 28px;
  height: 100%;
}
.scene-copy-panel p { color: var(--text-mid); line-height: 1.9; }
.scene-tile-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 16px; }
.scene-tile {
  background: var(--glass);
  border: 1px solid rgba(160,210,255,.14);
  border-radius: var(--radius-md);
  padding: 22px;
  transition: var(--transition);
}
.scene-tile:hover {
  border-color: rgba(36,224,192,.35);
  box-shadow: var(--glow-cyan);
}
.scene-tile i {
  display: inline-flex;
  width: 42px; height: 42px;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  background: rgba(46,144,255,.13);
  color: var(--sky);
  font-size: 18px;
  margin-bottom: 14px;
}
.scene-tile h4 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 5px;
}
.scene-tile p {
  color: var(--text-mid);
  font-size: 13px;
  line-height: 1.7;
  margin: 0;
}

/* Compare */
.compare-wrap {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 76px 1fr;
  gap: 0;
  align-items: center;
}
.compare-card {
  border-radius: var(--radius-lg);
  padding: 30px;
  border: 1px solid var(--glass-line);
  box-shadow: var(--card-shadow);
  background: var(--glass-soft);
  transition: var(--transition);
}
.compare-old { background: rgba(255,255,255,.024); }
.compare-new {
  background: linear-gradient(135deg, rgba(36,224,192,.11), rgba(46,144,255,.06));
  border-color: rgba(36,224,192,.3);
}
.compare-card__label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-mid);
  font-weight: 600;
  margin-bottom: 18px;
}
.compare-new .compare-card__label { color: var(--aqua); }
.compare-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 12px; }
.compare-list { list-style: none; padding: 0; margin: 0; }
.compare-list li {
  position: relative;
  padding-left: 24px;
  margin-bottom: 10px;
  color: var(--text-mid);
  font-size: 15px;
}
.compare-list li::before {
  content: "×";
  position: absolute;
  left: 0; top: 0;
  font-weight: 700;
  color: var(--danger);
}
.compare-new .compare-list li::before { content: "✓"; color: var(--aqua); }
.vs-badge {
  width: 64px; height: 64px;
  border-radius: 50%;
  margin: 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(36,224,192,.15), rgba(46,144,255,.15));
  border: 1px solid rgba(36,224,192,.4);
  color: var(--aqua);
  font-weight: 800;
  font-size: 15px;
  letter-spacing: .1em;
  box-shadow: 0 0 28px rgba(36,224,192,.14);
}

/* Steps */
.flow-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  counter-reset: flow;
}
.flow-step {
  position: relative;
  background: var(--glass);
  border: 1px solid rgba(160,210,255,.14);
  border-radius: var(--radius-md);
  padding: 26px 22px;
  transition: var(--transition);
}
.flow-step:hover {
  border-color: rgba(36,224,192,.38);
  transform: translateY(-3px);
  box-shadow: var(--glow-cyan);
}
.flow-step__num {
  font-size: 46px;
  font-weight: 800;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1.4px rgba(36,224,192,.5);
  margin-bottom: 16px;
  display: block;
}
.flow-step h3 { font-size: 18px; font-weight: 700; }
.flow-step p { color: var(--text-mid); font-size: 14px; margin: 0; line-height: 1.75; }

/* FAQ */
.faq-accordion { max-width: 860px; margin: 0 auto; }
.accordion-item {
  background: var(--glass);
  border: 1px solid rgba(160,210,255,.14);
  border-radius: var(--radius-md) !important;
  margin-bottom: 14px;
  overflow: hidden;
}
.accordion-button {
  background: transparent;
  color: var(--text-hi);
  font-size: 17px;
  font-weight: 700;
  padding: 20px 22px;
  border: 0;
  box-shadow: none;
  border-radius: var(--radius-md) !important;
}
.accordion-button:not(.collapsed) {
  background: rgba(36,224,192,.06);
  color: var(--text-hi);
  box-shadow: none;
}
.accordion-button:focus { box-shadow: none; border: 0; }
.accordion-button::after {
  content: "+";
  background: none;
  font-size: 22px;
  font-family: "HarmonyOS Sans SC", "Microsoft YaHei", sans-serif;
  color: var(--text-mid);
  width: 34px; height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(160,210,255,.25);
  border-radius: 50%;
  line-height: 1;
  transition: var(--transition);
  flex-shrink: 0;
}
.accordion-button:not(.collapsed)::after {
  content: "−";
  color: var(--aqua);
  border-color: var(--aqua);
  transform: none;
}
.accordion-body { padding: 0 22px 22px; color: var(--text-mid); line-height: 1.9; }

/* Contact */
.contact-outside {
  position: relative;
  padding: 100px 0;
  border-top: 1px solid rgba(160,210,255,.1);
  background:
    radial-gradient(circle at 76% 20%, rgba(46,144,255,.10), transparent 26rem),
    radial-gradient(circle at 15% 80%, rgba(36,224,192,.07), transparent 24rem),
    rgba(8,18,32,.4);
}
.contact-card {
  background: var(--glass);
  border: 1px solid rgba(160,210,255,.16);
  border-radius: 32px;
  padding: 38px;
  backdrop-filter: blur(14px);
  box-shadow: var(--card-shadow);
}
.contact-info h2 { font-size: 32px; font-weight: 800; }
.contact-info p { color: var(--text-mid); font-size: 16px; line-height: 1.9; }
.contact-note-list { list-style: none; padding: 0; margin: 18px 0 0; }
.contact-note-list li {
  position: relative;
  padding-left: 28px;
  margin-bottom: 14px;
  color: var(--text-mid);
}
.contact-note-list li i {
  position: absolute;
  left: 0; top: 4px;
  width: 20px;
  color: var(--aqua);
  text-align: center;
}
.form-control, .form-select {
  background-color: rgba(2,10,18,.45);
  border: 1px solid rgba(160,210,255,.17);
  border-radius: 14px;
  color: var(--text-hi);
  padding: 12px 16px;
  font-size: 15px;
}
.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%2358C8FF' stroke-width='2'%3E%3Cpath d='m4 6 4 4 4-4'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  background-size: 1.1em;
}
.form-select option { background-color: #0B182B; color: var(--text-hi); }
.form-control::placeholder { color: rgba(220,238,255,.38); }
.form-control:focus, .form-select:focus {
  background-color: rgba(4,13,25,.68);
  border-color: var(--aqua);
  color: var(--text-hi);
  box-shadow: 0 0 0 4px rgba(36,224,192,.08);
}
.form-label { color: var(--text-mid); font-size: 14px; font-weight: 500; margin-bottom: 8px; }
.form-note { font-size: 13px; color: var(--text-low); }

/* Footer */
.footer {
  margin-top: auto;
  border-top: 1px solid rgba(160,210,255,.1);
  background: linear-gradient(180deg, rgba(8,18,32,.6), rgba(5,12,22,.95));
}
.footer-main { padding: 60px 24px 44px; }
.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 22px;
  font-weight: 800;
  color: var(--text-hi);
  margin-bottom: 14px;
}
.footer-brand i { color: var(--aqua); font-size: 20px; }
.footer-desc { color: var(--text-mid); font-size: 15px; line-height: 1.9; max-width: 360px; }
.footer-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 14px;
  color: var(--text-hi);
}
.footer-list { list-style: none; padding: 0; margin: 0; }
.footer-list li { margin-bottom: 10px; }
.footer-list a {
  color: var(--text-mid);
  font-size: 14px;
  transition: var(--transition);
  position: relative;
  padding-left: 0;
}
.footer-list a:hover { color: var(--aqua); padding-left: 4px; }
.footer-contact li { color: var(--text-mid); font-size: 14px; }
.footer-contact i { width: 20px; color: var(--aqua); margin-right: 4px; }
.footer-bottom {
  border-top: 1px solid rgba(160,210,255,.08);
  padding: 18px 0;
  color: var(--text-low);
  font-size: 13px;
  text-align: center;
}

@media (max-width: 991.98px) {
  .sidebar { transform: translateX(-105%); }
  .sidebar.open { transform: translateX(0); box-shadow: 0 20px 60px rgba(0,0,0,.45); }
  .mobile-topbar { display: flex; }
  .main-content { margin-left: 0; padding-top: 64px; }
  .section { padding: 64px 0; }
  .metric-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .flow-steps { grid-template-columns: repeat(2, 1fr); }
  .media-story, .topic-visual { min-height: 360px; }
  .compare-wrap { grid-template-columns: 1fr; gap: 20px; }
  .vs-badge { margin: 0 auto; }
}
@media (max-width: 767.98px) {
  .section { padding: 58px 0; }
  .metric-grid { grid-template-columns: 1fr 1fr; gap: 14px; }
  .scene-tile-grid { grid-template-columns: 1fr 1fr; }
  .cmp-list-card { margin-top: 18px; }
  .contact-card { padding: 24px 18px; }
  .content-frame { padding-left: 18px; padding-right: 18px; }
}
@media (max-width: 575.98px) {
  .metric-grid { grid-template-columns: 1fr; }
  .scene-tile-grid { grid-template-columns: 1fr; }
  .flow-steps { grid-template-columns: 1fr; }
  .banner-actions .btn { width: 100%; }
  .cat-banner { padding: 84px 0 70px; }
  .media-story, .topic-visual { min-height: 300px; }
  .compare-card { padding: 20px; }
  .section-title { font-size: 26px; }
  .footer-main { padding: 44px 18px 32px; }
}

/* roulang page: category2 */
:root {
    --bg-deep: #070F1B;
    --bg-deep2: #0B182B;
    --glass: rgba(255, 255, 255, 0.045);
    --glass-soft: rgba(255, 255, 255, 0.03);
    --glass-line: rgba(160, 210, 255, 0.16);
    --sky: #58C8FF;
    --aqua: #24E0C0;
    --blue: #2E90FF;
    --amber: #FBBD6A;
    --danger: #FF7C7C;
    --text-hi: #EEF7FF;
    --text-mid: rgba(220, 238, 255, 0.72);
    --text-low: rgba(220, 238, 255, 0.44);
    --radius-lg: 28px;
    --radius-md: 18px;
    --radius-sm: 12px;
    --card-shadow: 0 20px 48px rgba(0, 0, 0, .25);
    --glow-cyan: 0 0 0 1px rgba(36, 224, 192, .18), 0 0 32px rgba(36, 224, 192, .14);
    --transition: all .25s ease;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: var(--bg-deep);
    color: var(--text-hi);
    font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Alibaba PuHuiTi", sans-serif;
    font-size: var(--font-body-size, 16px);
    line-height: 1.9;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

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

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

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

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

h1, h2, h3, h4, h5 {
    margin: 0;
    font-weight: 700;
    line-height: 1.3;
}

p {
    margin: 0;
}

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

.row {
    --bs-gutter-x: 1.5rem;
    --bs-gutter-y: 1.5rem;
}

.bg-media {
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

.site-layout {
    position: relative;
    min-height: 100vh;
}

.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: 264px;
    z-index: 1080;
    display: flex;
    flex-direction: column;
    background: linear-gradient(180deg, rgba(18, 36, 58, .70), rgba(8, 17, 30, .96));
    border-right: 1px solid var(--glass-line);
    backdrop-filter: blur(24px);
    padding: 0 18px;
    transition: transform .3s ease;
    box-shadow: 12px 0 42px rgba(0, 0, 0, .30);
}

.sidebar-brand {
    min-height: 88px;
    height: 88px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid rgba(160, 210, 255, .12);
    padding: 0 6px;
}

.sidebar-brand .brand-icon {
    width: 46px;
    height: 46px;
    flex: 0 0 46px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 16px;
    background: linear-gradient(135deg, rgba(36, 224, 192, .22), rgba(46, 144, 255, .26));
    border: 1px solid rgba(36, 224, 192, .32);
    color: var(--aqua);
    font-size: 20px;
    box-shadow: var(--glow-cyan);
}

.sidebar-brand .brand-text {
    font-size: 22px;
    font-weight: 800;
    letter-spacing: .2px;
    color: var(--text-hi);
    white-space: nowrap;
}

.sidebar-close {
    display: none;
}

.sidebar__nav {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-top: 28px;
    max-height: calc(100vh - 230px);
    overflow-y: auto;
    padding-bottom: 16px;
}

.nav-group {
    padding: 0 12px;
    margin: 8px 0 5px;
    font-size: 12px;
    letter-spacing: .4px;
    color: var(--text-low);
    line-height: 1.2;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 11px 14px;
    color: var(--text-mid);
    border-radius: 14px;
    font-size: 15px;
    border: 1px solid transparent;
    transition: var(--transition);
    position: relative;
}

.nav-item i {
    width: 20px;
    text-align: center;
    color: var(--text-low);
    font-size: 17px;
    transition: var(--transition);
}

.nav-item span {
    line-height: 1.4;
}

.nav-item:hover {
    color: #fff;
    background: rgba(255, 255, 255, .05);
}

.nav-item:hover i {
    color: var(--sky);
}

.nav-item.active {
    background: rgba(36, 224, 192, .10);
    color: #fff;
    border-color: rgba(36, 224, 192, .18);
}

.nav-item.active i {
    color: var(--aqua);
}

.nav-item.active::before {
    content: "";
    position: absolute;
    left: -18px;
    top: 12px;
    bottom: 12px;
    width: 3px;
    border-radius: 0 8px 8px 0;
    background: linear-gradient(180deg, var(--aqua), var(--blue));
    box-shadow: 0 0 18px rgba(36, 224, 192, .55);
}

.sidebar-meta {
    margin-top: auto;
    padding: 20px 12px 18px;
    border-top: 1px solid rgba(160, 210, 255, .11);
}

.sidebar-meta-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: var(--text-low);
    margin: 4px 0;
    line-height: 1.5;
}

.sidebar-meta-item i {
    color: var(--aqua);
    width: 18px;
    text-align: center;
    opacity: .75;
}

.main-shell {
    margin-left: 264px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.mobile-topbar {
    display: none;
    position: sticky;
    top: 0;
    z-index: 1040;
    height: 64px;
    padding: 0 20px;
    align-items: center;
    justify-content: space-between;
    background: rgba(10, 21, 35, .82);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(160, 210, 255, .14);
}

.mobile-topbar .mobile-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-hi);
    font-size: 19px;
    font-weight: 800;
}

.mobile-topbar .mobile-logo i {
    color: var(--aqua);
    font-size: 22px;
}

.mobile-burger {
    width: 42px;
    height: 42px;
    background: rgba(255, 255, 255, .06);
    border: 1px solid rgba(160, 210, 255, .2);
    color: #fff;
    border-radius: 13px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    cursor: pointer;
}

.nav-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(4, 8, 16, .62);
    z-index: 1070;
    opacity: 0;
    pointer-events: none;
    transition: opacity .3s ease;
}

.page-main {
    flex: 1;
}

.content-frame {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 32px;
}

.section {
    padding: 100px 0;
    position: relative;
}

.section-soft {
    background: linear-gradient(180deg, rgba(11, 24, 43, .20), rgba(7, 15, 27, 0));
}

.section-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--aqua);
    font-size: 14px;
    letter-spacing: 1px;
    padding: 7px 16px;
    border-radius: 999px;
    background: rgba(36, 224, 192, .09);
    border: 1px solid rgba(36, 224, 192, .18);
    margin-bottom: 16px;
}

.section-title {
    font-size: 34px;
    line-height: 1.32;
    margin-bottom: 16px;
    letter-spacing: -.4px;
    color: var(--text-hi);
}

.lead-copy {
    font-size: 17px;
    color: var(--text-mid);
    max-width: 720px;
    line-height: 1.95;
}

.glass-card {
    background: var(--glass);
    border: 1px solid var(--glass-line);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(22px);
    box-shadow: var(--card-shadow);
    padding: 30px;
}

.bg-soft-card {
    background: rgba(10, 23, 38, .60);
    border: 1px solid rgba(160, 210, 255, .13);
    border-radius: var(--radius-lg);
}

/* Hero */
.eco-hero {
    position: relative;
    padding: 110px 0 90px;
    background: linear-gradient(90deg, rgba(7, 15, 27, .95) 0%, rgba(7, 15, 27, .70) 55%, rgba(7, 15, 27, .90) 100%), url('/assets/images/backpic/back-1.png') center/cover;
    overflow: hidden;
}

.eco-hero::before {
    content: "";
    position: absolute;
    width: 620px;
    height: 620px;
    left: 38%;
    top: -160px;
    background: radial-gradient(circle, rgba(36, 224, 192, .14), rgba(7, 15, 27, 0) 65%);
    pointer-events: none;
}

.hero-breadcrumb {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: 999px;
    background: rgba(255, 255, 255, .05);
    border: 1px solid rgba(160, 210, 255, .15);
    color: var(--text-mid);
    font-size: 13px;
    margin-bottom: 22px;
}

.hero-breadcrumb i {
    color: var(--aqua);
}

.hero-breadcrumb a {
    color: var(--text-mid);
}

.hero-breadcrumb a:hover {
    color: #fff;
}

.hero-title {
    font-size: clamp(38px, 5vw, 56px);
    font-weight: 800;
    line-height: 1.2;
    color: #fff;
    margin-bottom: 22px;
    letter-spacing: -1px;
}

.hero-title span {
    background: linear-gradient(120deg, var(--aqua), var(--sky));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero-lead {
    font-size: 18px;
    line-height: 2;
    color: var(--text-mid);
    max-width: 680px;
    margin-bottom: 30px;
}

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

.btn-primary-custom,
.btn-outline-custom {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 28px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 700;
    line-height: 1.5;
    border: 1px solid transparent;
    transition: var(--transition);
    cursor: pointer;
    text-align: center;
    white-space: nowrap;
}

.btn-primary-custom {
    background: linear-gradient(135deg, #24E0C0, #2E90FF);
    color: #042033;
    box-shadow: 0 8px 28px rgba(36, 224, 192, .18);
}

.btn-primary-custom:hover {
    color: #042033;
    filter: brightness(1.08);
    transform: translateY(-2px);
    box-shadow: 0 0 0 1px rgba(36, 224, 192, .3), 0 10px 34px rgba(36, 224, 192, .22);
}

.btn-outline-custom {
    border-color: rgba(160, 210, 255, .32);
    background: rgba(255, 255, 255, .03);
    color: #EAF5FF;
}

.btn-outline-custom:hover {
    border-color: var(--aqua);
    color: #fff;
    background: rgba(36, 224, 192, .08);
    box-shadow: 0 0 24px rgba(36, 224, 192, .10);
}

.text-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--sky);
    font-weight: 600;
}

.text-link i {
    transition: transform .2s ease;
}

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

.hero-console {
    border-radius: var(--radius-lg);
    background: linear-gradient(145deg, rgba(16, 34, 55, .85), rgba(9, 20, 34, .55));
    border: 1px solid rgba(160, 210, 255, .20);
    backdrop-filter: blur(18px);
    box-shadow: var(--card-shadow);
    padding: 24px;
    transform: rotate(1deg);
}

.console-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    color: var(--text-hi);
}

.console-head .console-label {
    font-size: 15px;
    font-weight: 600;
}

.console-status {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--aqua);
    font-size: 13px;
    background: rgba(36, 224, 192, .10);
    border: 1px solid rgba(36, 224, 192, .18);
    border-radius: 999px;
    padding: 3px 12px;
}

.console-status i {
    font-size: 9px;
    color: var(--aqua);
}

.console-row {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 13px 14px;
    margin-bottom: 10px;
    border-radius: 16px;
    background: rgba(7, 15, 27, .35);
    border: 1px solid rgba(160, 210, 255, .12);
    color: var(--text-mid);
    font-size: 14px;
    transition: var(--transition);
}

.console-row:last-child {
    margin-bottom: 0;
}

.console-row .row-num {
    width: 26px;
    height: 26px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(36, 224, 192, .18), rgba(46, 144, 255, .2));
    color: var(--aqua);
}

.console-row .row-arrow {
    margin-left: auto;
    color: var(--sky);
}

.console-row:hover {
    border-color: rgba(36, 224, 192, .34);
    transform: translateX(4px);
}

/* General heading */
.block-head {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 44px;
}

/* Overview section */
.feature-mini-card {
    height: 100%;
    background: rgba(11, 24, 43, .62);
    border: 1px solid var(--glass-line);
    border-radius: var(--radius-md);
    padding: 26px;
    transition: var(--transition);
}

.feature-mini-card .card-icon {
    width: 44px;
    height: 44px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(36, 224, 192, .14), rgba(46, 144, 255, .15));
    color: var(--aqua);
    border: 1px solid rgba(36, 224, 192, .18);
    margin-bottom: 16px;
    font-size: 18px;
}

.feature-mini-card h3 {
    font-size: 19px;
    color: var(--text-hi);
    margin-bottom: 10px;
}

.feature-mini-card p {
    font-size: 14px;
    color: var(--text-mid);
    line-height: 1.85;
}

.feature-mini-card:hover {
    transform: translateY(-4px);
    border-color: rgba(36, 224, 192, .36);
    box-shadow: 0 18px 42px rgba(0, 0, 0, .30);
}

.guide-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-top: 20px;
}

.guide-list li {
    display: flex;
    gap: 12px;
    color: var(--text-mid);
    font-size: 15px;
    line-height: 1.9;
}

.guide-list li i {
    color: var(--aqua);
    margin-top: 6px;
}

/* News / scope */
.media-block {
    display: flex;
    flex-wrap: wrap;
    overflow: hidden;
    border-radius: var(--radius-lg);
    border: 1px solid var(--glass-line);
    background: rgba(9, 20, 35, .60);
    box-shadow: var(--card-shadow);
}

.media-cover {
    min-height: 300px;
    background-size: cover;
    background-position: center;
    display: block;
    position: relative;
    min-height: 320px;
}

.media-cover::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(7, 15, 27, .0), rgba(7, 15, 27, .62));
}

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

.media-content {
    padding: 38px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.index-tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 22px;
}

.index-tag-list .index-tag {
    padding: 6px 16px;
    border-radius: 999px;
    border: 1px solid rgba(160, 210, 255, .18);
    background: rgba(255, 255, 255, .03);
    color: var(--text-mid);
}

.index-tag-list .index-tag i {
    color: var(--aqua);
    margin-right: 6px;
    font-size: 12px;
}

.grid-label {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--sky);
    font-weight: 600;
    margin-bottom: 16px;
}

.grid-label i {
    color: var(--aqua);
}

.side-highlight-card {
    background: rgba(11, 24, 43, .72);
    border: 1px solid rgba(160, 210, 255, .16);
    padding: 28px;
    height: 100%;
}

/* 4 channel dashboard */
.channel-card {
    height: 100%;
    background: linear-gradient(155deg, rgba(14, 29, 49, .87), rgba(8, 18, 32, .80));
    border: 1px solid rgba(160, 210, 255, .14);
    padding: 26px;
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.channel-card .card-icon {
    width: 48px;
    height: 48px;
    border-radius: 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(36, 224, 192, .18);
    background: rgba(36, 224, 192, .10);
    color: var(--aqua);
    font-size: 20px;
    margin-bottom: 18px;
}

.channel-card h3 {
    font-size: 18px;
    line-height: 1.5;
    color: #fff;
    margin-bottom: 10px;
}

.channel-card h3 small {
    display: block;
    font-size: 12px;
    color: var(--text-low);
    margin-top: 4px;
}

.channel-card p {
    font-size: 14px;
    line-height: 1.9;
    color: var(--text-mid);
}

.channel-card:hover {
    border-color: rgba(36, 224, 192, .35);
    transform: translateY(-4px);
    box-shadow: 0 16px 38px rgba(0, 0, 0, .30);
}

/* Compare */
.compare-panel {
    position: relative;
    border-radius: var(--radius-lg);
    padding: 34px;
    height: 100%;
}

.compare-old {
    background: rgba(8, 16, 28, .62);
    border: 1px solid rgba(160, 210, 255, .10);
}

.compare-new {
    background: linear-gradient(135deg, rgba(16, 46, 64, .55), rgba(10, 24, 40, .76));
    border: 1px solid rgba(36, 224, 192, .32);
    box-shadow: var(--glow-cyan);
}

.compare-label {
    display: inline-block;
    padding: 5px 14px;
    border-radius: 999px;
    color: var(--text-low);
    font-size: 13px;
    background: rgba(255, 255, 255, .05);
    border: 1px solid rgba(160, 210, 255, .12);
    margin-bottom: 18px;
}

.compare-new .compare-label {
    color: var(--aqua);
    border-color: rgba(36, 224, 192, .24);
    background: rgba(36, 224, 192, .10);
}

.compare-list {
    margin-top: 16px;
}

.compare-list li {
    display: flex;
    gap: 12px;
    color: var(--text-mid);
    margin-bottom: 10px;
}

.compare-list li i {
    margin-top: 7px;
    color: var(--danger);
}

.compare-new .compare-list li i {
    color: var(--aqua);
}

.compare-vs {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    position: absolute;
    z-index: 3;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    background: radial-gradient(circle at 30% 20%, #5a617c, #17243a);
    border: 1px solid rgba(255, 255, 255, .35);
    color: #DDEFFF;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 17px;
    font-weight: 700;
    letter-spacing: 2px;
    box-shadow: 0 0 0 8px rgba(7, 15, 27, .72), 0 0 28px rgba(36, 224, 192, .12);
}

/* Timeline */
.timeline-wrap {
    position: relative;
    max-width: 920px;
    margin: 0 auto;
}

.timeline-wrap::before {
    content: "";
    position: absolute;
    left: 24px;
    top: 10px;
    bottom: 10px;
    width: 1px;
    background: linear-gradient(180deg, var(--aqua), rgba(36, 224, 192, .1));
}

.timeline-item {
    display: flex;
    gap: 18px;
    position: relative;
    padding: 0 0 34px 0;
}

.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-dot {
    width: 48px;
    height: 48px;
    flex: 0 0 48px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(36, 224, 192, .18), rgba(46, 144, 255, .10));
    border: 1px solid rgba(36, 224, 192, .3);
    color: var(--aqua);
    font-size: 18px;
    z-index: 1;
    backdrop-filter: blur(8px);
}

.timeline-card {
    background: rgba(11, 24, 43, .62);
    border: 1px solid rgba(160, 210, 255, .13);
    border-radius: 20px;
    padding: 20px 22px;
    flex: 1;
    box-shadow: var(--card-shadow);
    transition: var(--transition);
}

.timeline-card:hover {
    border-color: rgba(36, 224, 192, .28);
    background: rgba(13, 28, 50, .82);
}

.timeline-card h3 {
    color: var(--text-hi);
    font-size: 18px;
    margin-bottom: 8px;
}

.timeline-card p {
    color: var(--text-mid);
    font-size: 14px;
    line-height: 1.95;
}

/* Accordion */
.qa-accordion .accordion-item {
    background: rgba(11, 24, 43, .70);
    border: 1px solid rgba(160, 210, 255, .14);
    border-radius: var(--radius-md) !important;
    margin-bottom: 16px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, .10);
    transition: var(--transition);
}

.qa-accordion .accordion-item:hover {
    border-color: rgba(36, 224, 192, .28);
}

.qa-accordion .accordion-button {
    background: transparent;
    color: var(--text-hi);
    font-size: 17px;
    font-weight: 600;
    padding: 22px 24px 22px 24px;
    box-shadow: none;
    display: flex;
    gap: 14px;
}

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

.qa-accordion .accordion-button:not(.collapsed)::before {
    content: "−";
    background: rgba(36, 224, 192, .18);
    color: var(--aqua);
}

.qa-accordion .accordion-button::before {
    content: "+";
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 28px;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 1px solid rgba(160, 210, 255, .24);
    color: var(--sky);
    font-size: 16px;
    line-height: 1;
}

.qa-accordion .accordion-button::after {
    display: none;
}

.qa-accordion .accordion-button:focus {
    box-shadow: none;
    border-color: transparent;
}

.qa-accordion .accordion-body {
    padding: 0 24px 24px 66px;
    color: var(--text-mid);
    font-size: 15px;
    line-height: 1.95;
}

/* Bottom navigation */
.nav-channel-card {
    background: linear-gradient(155deg, rgba(15, 33, 55, .82), rgba(8, 18, 32, .75));
    border: 1px solid rgba(160, 210, 255, .16);
    border-radius: var(--radius-lg);
    padding: 32px;
    height: 100%;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.nav-channel-card:hover {
    border-color: rgba(36, 224, 192, .38);
    transform: translateY(-4px);
    box-shadow: var(--glow-cyan);
}

.nav-channel-card h3 {
    font-size: 22px;
    color: #fff;
    margin-bottom: 12px;
}

.nav-channel-card p {
    color: var(--text-mid);
    font-size: 15px;
    margin-bottom: 22px;
}

/* footer */
.footer {
    background: linear-gradient(180deg, rgba(8, 17, 30, .98), rgba(5, 9, 18, 1));
    border-top: 1px solid rgba(160, 210, 255, .12);
    padding-top: 66px;
    margin-top: 0;
}

.footer-main {
    padding-bottom: 40px;
}

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

.footer-brand i {
    color: var(--aqua);
    font-size: 24px;
}

.footer-desc {
    color: var(--text-low);
    font-size: 14px;
    line-height: 2;
    max-width: 340px;
}

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

.footer-list li {
    color: var(--text-low);
    margin-bottom: 10px;
    font-size: 14px;
    display: flex;
    align-items: flex-start;
    gap: 8px;
}

.footer-list a {
    color: var(--text-low);
    transition: var(--transition);
}

.footer-list a:hover {
    color: var(--aqua);
}

.footer-list i {
    color: var(--aqua);
    margin-top: 6px;
    font-size: 13px;
}

.footer-contact li i {
    width: 18px;
    text-align: center;
}

.footer-bottom {
    border-top: 1px solid rgba(160, 210, 255, .10);
    padding: 20px 0;
    color: var(--text-low);
    font-size: 13px;
    text-align: center;
    background: rgba(5, 9, 18, .35);
}

/* Large desktop adjust */
@media (max-width: 1199px) {
    .content-frame {
        padding: 0 28px;
    }
    .section {
        padding: 84px 0;
    }
    .section-title {
        font-size: 30px;
    }
}

/* Tablet and mobile */
@media (max-width: 991px) {
    .sidebar {
        transform: translateX(-105%);
        width: 280px;
        padding-top: 0;
    }
    .sidebar.open {
        transform: translateX(0);
    }
    .sidebar-close {
        display: flex;
        margin-left: auto;
        width: 36px;
        height: 36px;
        align-items: center;
        justify-content: center;
        color: var(--text-low);
        border-radius: 12px;
        background: rgba(255, 255, 255, .05);
        cursor: pointer;
    }
    .sidebar__nav {
        max-height: calc(100vh - 130px);
        margin-top: 10px;
    }
    .sidebar-brand {
        min-height: 78px;
        height: auto;
        padding: 15px 4px;
    }
    .main-shell {
        margin-left: 0;
    }
    .mobile-topbar {
        display: flex;
    }
    .nav-backdrop.visible {
        display: block;
        opacity: 1;
        pointer-events: auto;
    }
    .eco-hero {
        padding: 78px 0 66px;
    }
    .hero-title {
        font-size: 38px;
    }
}

@media (max-width: 767px) {
    .section {
        padding: 64px 0;
    }
    .section-title {
        font-size: 27px;
    }
    .content-frame {
        padding: 0 20px;
    }
    .eco-hero {
        padding: 56px 0 48px;
        background: linear-gradient(180deg, rgba(7, 15, 27, .88), rgba(7, 15, 27, .94)), url('/assets/images/backpic/back-1.png') center/cover;
    }
    .hero-title {
        font-size: 32px;
    }
    .hero-lead {
        font-size: 16px;
    }
    .hero-actions .btn-primary-custom,
    .hero-actions .btn-outline-custom {
        width: 100%;
    }
    .media-content {
        padding: 24px;
    }
    .media-cover {
        min-height: 250px;
    }
    .compare-vs {
        width: 58px;
        height: 58px;
        font-size: 14px;
        left: 50%;
        top: auto;
        bottom: 28px;
        transform: translateX(-50%);
    }
    .glass-card {
        padding: 20px;
    }
    .footer-bottom {
        text-align: center;
    }
}

@media (max-width: 520px) {
    .section-title {
        font-size: 24px;
    }
    .block-head {
        align-items: flex-start;
        flex-direction: column;
    }
    .timeline-dot {
        width: 40px;
        height: 40px;
        flex: 0 0 40px;
    }
    .qa-accordion .accordion-body {
        padding: 0 20px 22px 58px;
    }
}