/* roulang page: index */
:root {
  --bg-base: #07111F;
  --bg-deep: #04101E;
  --glass-bg: rgba(17, 33, 55, 0.55);
  --glass-border: rgba(145, 195, 255, 0.16);
  --glass-highlight: rgba(255, 255, 255, 0.06);
  --brand: #2D8CFF;
  --brand-strong: #1495FF;
  --accent: #35D0FF;
  --gold: #F5B544;
  --text-hi: #F2F7FF;
  --text-mid: #9FB2C9;
  --text-low: #6A7D94;
  --line: rgba(145, 195, 255, 0.12);
  --glow-primary: rgba(45, 140, 255, 0.45);
  --glow-soft: rgba(53, 208, 255, 0.2);
  --shadow-card: 0 20px 50px rgba(0, 10, 25, 0.45);
  --shadow-glow: 0 0 34px rgba(45, 140, 255, 0.28);
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 18px;
  --space-section: 88px;
  --content-width: 1180px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg-base);
  color: var(--text-hi);
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  min-height: 100vh;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(ellipse at 14% 12%, rgba(45, 140, 255, 0.12), transparent 34%),
    radial-gradient(ellipse at 84% 38%, rgba(53, 208, 255, 0.07), transparent 42%),
    radial-gradient(ellipse at 48% 94%, rgba(21, 46, 84, 0.3), transparent 48%);
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.24;
  background-image:
    linear-gradient(rgba(145, 195, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(145, 195, 255, 0.045) 1px, transparent 1px);
  background-size: 72px 72px;
}

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

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

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

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

.container {
  width: min(var(--content-width), calc(100% - 48px));
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.main-content {
  position: relative;
  z-index: 1;
}

/* Buttons */
.btn-primary,
.btn-ghost,
.btn-gold,
.btn-light {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 0;
  cursor: pointer;
  padding: 0 24px;
  height: 50px;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1;
  transition: transform 0.22s ease, box-shadow 0.22s ease, background 0.22s ease, border-color 0.22s ease;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(105deg, #1f7dff, #39c6ff 90%);
  box-shadow: 0 12px 28px rgba(45, 140, 255, 0.36), inset 0 1px 0 rgba(255, 255, 255, 0.24);
  color: #ffffff;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 38px rgba(45, 140, 255, 0.42), inset 0 1px 0 rgba(255, 255, 255, 0.24);
  background: linear-gradient(105deg, #2c8cff, #53d7ff 95%);
}

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

.btn-ghost {
  background: rgba(18, 36, 61, 0.5);
  border: 1px solid rgba(147, 195, 255, 0.28);
  color: var(--text-hi);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.btn-ghost:hover {
  border-color: rgba(53, 208, 255, 0.72);
  background: rgba(53, 208, 255, 0.08);
  color: #ffffff;
  transform: translateY(-2px);
}

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

.btn-light {
  background: #ffffff;
  color: #0b1e35;
  box-shadow: 0 10px 28px rgba(255, 255, 255, 0.16);
}

.btn-light:hover {
  transform: translateY(-2px);
  background: #eef7ff;
}

.btn-block {
  width: 100%;
}

/* header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  height: 72px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid transparent;
  transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.site-header.is-pinned {
  background: rgba(7, 17, 31, 0.82);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom-color: rgba(145, 195, 255, 0.12);
  box-shadow: 0 12px 30px rgba(0, 5, 15, 0.26);
}

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

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

.brand-mark {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: linear-gradient(140deg, #1e68cc, #24c5ff);
  box-shadow: 0 8px 20px rgba(45, 140, 255, 0.36), inset 0 1px 0 rgba(255, 255, 255, 0.32);
  color: #fff;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.2px;
  position: relative;
}

.brand-mark::after {
  content: "";
  position: absolute;
  inset: -3px;
  border-radius: 15px;
  border: 1px solid rgba(53, 208, 255, 0.28);
  pointer-events: none;
}

.brand-name {
  font-size: 19px;
  font-weight: 700;
  color: var(--text-hi);
  letter-spacing: 0.4px;
}

.brand-name small {
  display: block;
  font-size: 11px;
  color: var(--text-low);
  letter-spacing: 1.2px;
  font-weight: 400;
  line-height: 1.2;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 26px;
  margin: 0 auto;
}

.nav-link {
  color: var(--text-mid);
  font-size: 15px;
  font-weight: 500;
  position: relative;
  padding: 8px 2px;
  transition: color 0.22s ease;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  height: 2px;
  width: 100%;
  background: linear-gradient(90deg, var(--accent), transparent);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.25s ease;
  border-radius: 4px;
}

.nav-link:hover {
  color: #ffffff;
}

.nav-link:hover::after,
.nav-link.is-active::after {
  transform: scaleX(1);
}

.nav-link.is-active {
  color: #ffffff;
}

.header-cta {
  flex-shrink: 0;
}

.btn-header {
  height: 42px;
  padding: 0 18px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  background: rgba(53, 208, 255, 0.08);
  border: 1px solid rgba(53, 208, 255, 0.42);
  color: var(--text-hi);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  transition: all 0.22s ease;
}

.btn-header::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #47e49b;
  box-shadow: 0 0 10px rgba(71, 228, 155, 0.8);
}

.btn-header:hover {
  border-color: var(--accent);
  background: rgba(53, 208, 255, 0.16);
  box-shadow: 0 0 24px rgba(53, 208, 255, 0.18);
}

/* Hero */
.hero {
  min-height: 92vh;
  display: flex;
  align-items: center;
  position: relative;
  padding: 86px 0 64px;
  overflow: hidden;
  background-image: url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(86deg, rgba(7, 17, 31, 0.98) 0%, rgba(7, 17, 31, 0.92) 36%, rgba(7, 17, 31, 0.72) 68%, rgba(7, 17, 31, 0.5) 100%);
  z-index: 0;
}

.hero-layout {
  display: grid;
  grid-template-columns: 1.04fr 0.96fr;
  align-items: center;
  gap: 64px;
  padding-top: 18px;
}

.hero-copy {
  position: relative;
  z-index: 3;
  padding: 18px 0;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(53, 208, 255, 0.08);
  border: 1px solid rgba(53, 208, 255, 0.24);
  border-radius: 999px;
  padding: 8px 16px;
  font-size: 13px;
  color: #c8e9ff;
  margin-bottom: 22px;
}

.hero-eyebrow i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px rgba(53, 208, 255, 0.8);
}

.hero h1 {
  font-size: 52px;
  line-height: 1.22;
  font-weight: 800;
  letter-spacing: 0.5px;
  color: var(--text-hi);
  margin-bottom: 16px;
  text-wrap: balance;
}

.hero h1 .hl {
  background: linear-gradient(120deg, #7bcaff, var(--accent) 76%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-sub {
  font-size: 18px;
  line-height: 1.8;
  color: #b7c8dd;
  max-width: 32em;
  margin-bottom: 34px;
}

.hero-track {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  margin-bottom: 24px;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 32px;
}

.hero-badge {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--text-mid);
  font-size: 13px;
  padding-right: 18px;
  border-right: 1px solid rgba(255, 255, 255, 0.12);
}

.hero-badge:last-child {
  border-right: 0;
}

.hero-badge strong {
  color: var(--text-hi);
  font-size: 17px;
  font-weight: 700;
}

.hero-badge i {
  color: var(--accent);
}

/* hero console */
.console-wrap {
  position: relative;
  z-index: 2;
}

.hero-panel {
  border-radius: 24px;
  background: rgba(12, 26, 45, 0.58);
  border: 1px solid rgba(114, 179, 255, 0.22);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  padding: 14px;
  box-shadow: 0 40px 90px rgba(0, 8, 20, 0.52), inset 0 1px 0 rgba(255, 255, 255, 0.1);
  position: relative;
  overflow: hidden;
}

.hero-panel::before {
  content: "";
  position: absolute;
  height: 1px;
  width: 78%;
  top: 0;
  left: 12%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
}

.hero-panel::after {
  content: "";
  position: absolute;
  width: 300px;
  height: 180px;
  background: linear-gradient(90deg, transparent, rgba(53, 208, 255, 0.14), transparent);
  transform: rotate(-12deg) translateY(-180%);
  animation: scanpass 6.8s ease-in-out infinite;
  top: 0;
  pointer-events: none;
}

@keyframes scanpass {
  0%, 20% {
    top: -40%;
    transform: rotate(-10deg) translateX(-20%);
  }
  55%, 100% {
    top: 110%;
    transform: rotate(-10deg) translateX(30%);
  }
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 16px 12px;
}

.panel-title {
  font-size: 14px;
  color: var(--text-mid);
  display: flex;
  align-items: center;
  gap: 9px;
}

.panel-title i {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #41e68a;
  box-shadow: 0 0 0 4px rgba(65, 230, 138, 0.1);
}

.badge-gold {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  border: 1px solid rgba(245, 181, 68, 0.42);
  color: var(--gold);
  background: rgba(245, 181, 68, 0.08);
  padding: 4px 10px;
  font-size: 12px;
  border-radius: 999px;
}

.entrance-cred {
  background: rgba(3, 11, 22, 0.5);
  border-radius: 16px;
  padding: 18px 18px 16px;
  border: 1px solid rgba(145, 195, 255, 0.1);
}

.cred-line {
  height: 12px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.06);
  margin-bottom: 12px;
}

.cred-line.short {
  width: 55%;
}

.cred-line.mid {
  width: 82%;
}

.cred-line.long {
  width: 68%;
}

.cred-radio {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  background: rgba(53, 208, 255, 0.08);
  border: 1px solid rgba(53, 208, 255, 0.22);
  border-radius: 9px;
  font-size: 12px;
  color: #cfeaff;
}

.cred-radio i {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid rgba(53, 208, 255, 0.85);
  background: rgba(53, 208, 255, 0.3);
  box-shadow: 0 0 0 4px rgba(53, 208, 255, 0.1);
}

.panel-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 14px;
}

.panel-module {
  background: rgba(45, 140, 255, 0.06);
  border: 1px solid rgba(145, 195, 255, 0.12);
  border-radius: 14px;
  padding: 14px 12px;
  transition: border-color 0.2s ease;
  overflow: hidden;
  position: relative;
}

.panel-module:hover {
  border-color: rgba(53, 208, 255, 0.42);
}

.panel-module .icon-set {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: rgba(53, 208, 255, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--accent);
  margin-bottom: 10px;
}

.panel-module h3 {
  font-size: 13px;
  margin-bottom: 5px;
  color: var(--text-hi);
}

.panel-module p {
  font-size: 12px;
  color: var(--text-mid);
  line-height: 1.6;
}

.panel-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 14px;
  color: var(--text-low);
  font-size: 12px;
  padding: 0 4px;
}

.panel-status {
  color: #63e5a2;
}

/* sections */
.section {
  padding: var(--space-section) 0;
  position: relative;
}

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

.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 1.2px;
  margin-bottom: 12px;
  text-transform: uppercase;
}

.section-kicker::before {
  content: "";
  width: 22px;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent);
}

.section-head h2 {
  font-size: 34px;
  line-height: 1.3;
  color: var(--text-hi);
  letter-spacing: 0.4px;
}

.section-head .section-lead {
  color: var(--text-mid);
  font-size: 16px;
  max-width: 720px;
  margin-top: 10px;
}

.head-right {
  margin-left: auto;
  align-self: flex-end;
}

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

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

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

/* access levels / service zone */
.service-zone {
  background: rgba(4, 16, 30, 0.36);
  border-top: 1px solid transparent;
  border-bottom: 1px solid transparent;
  background-image: radial-gradient(circle at 12% 24%, rgba(45, 140, 255, 0.08), transparent 28%), radial-gradient(circle at 78% 6%, rgba(53, 208, 255, 0.07), transparent 27%);
}

.level-grid {
  display: grid;
  grid-template-columns: 1fr 1.13fr 1fr;
  gap: 22px;
  align-items: start;
}

.level-card {
  border-radius: 20px;
  background: rgba(14, 27, 47, 0.7);
  border: 1px solid rgba(145, 195, 255, 0.14);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: var(--shadow-card), inset 0 1px 0 rgba(255, 255, 255, 0.05);
  padding: 28px 26px 26px;
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
  margin-top: 24px;
  position: relative;
  overflow: hidden;
}

.level-card::after {
  content: "";
  position: absolute;
  top: 0;
  height: 1px;
  width: 70%;
  left: 15%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.26), transparent);
}

.level-card.level-main {
  margin-top: 0;
  border-color: rgba(53, 208, 255, 0.34);
  box-shadow: 0 28px 70px rgba(0, 10, 24, 0.5), 0 0 0 1px rgba(53, 208, 255, 0.12), 0 0 60px rgba(45, 140, 255, 0.1);
}

.level-card.level-main .level-top {
  color: var(--gold);
}

.level-icon {
  width: 54px;
  height: 54px;
  border-radius: 16px;
  background: linear-gradient(140deg, rgba(45, 140, 255, 0.28), rgba(53, 208, 255, 0.07));
  border: 1px solid rgba(53, 208, 255, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 18px;
  box-shadow: 0 0 30px rgba(45, 140, 255, 0.12);
}

.level-top {
  color: var(--accent);
  font-size: 13px;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.level-top span {
  background: rgba(53, 208, 255, 0.1);
  border-radius: 999px;
  padding: 3px 10px;
}

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

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

.level-list {
  list-style: none;
  padding: 0;
  margin: 0 0 24px;
}

.level-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 9px 0;
  border-bottom: 1px solid rgba(145, 195, 255, 0.08);
  color: #c2d2e6;
  font-size: 15px;
}

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

.level-list li i {
  color: var(--accent);
  font-style: normal;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 1px solid rgba(53, 208, 255, 0.42);
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  margin-top: 3px;
  background: rgba(53, 208, 255, 0.08);
}

.level-cta {
  margin-top: auto;
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-weight: 600;
  color: var(--accent);
  font-size: 15px;
  padding: 8px 0;
}

.link-arrow i {
  transition: transform 0.2s;
}

.level-card:hover .link-arrow i,
.link-arrow:hover i {
  transform: translateX(4px);
}

/* package / plan area */
.plan-area {
  position: relative;
}

.plan-switch-desktop .plan-table {
  display: grid;
  grid-template-columns: 190px repeat(3, 1fr);
  border-radius: 22px;
  overflow: hidden;
  background: rgba(16, 30, 51, 0.42);
  border: 1px solid rgba(145, 195, 255, 0.13);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: var(--shadow-card);
}

.plan-col {
  padding: 22px;
  border-right: 1px solid rgba(145, 195, 255, 0.09);
  color: var(--text-mid);
  font-size: 14px;
  position: relative;
}

.plan-col:last-child {
  border-right: 0;
}

.plan-col.plan-label-col {
  display: flex;
  flex-direction: column;
  justify-content: center;
  color: var(--text-mid);
  font-size: 15px;
  background: rgba(6, 19, 36, 0.44);
}

.plan-col.plan-label-col .table-icon {
  font-size: 26px;
  margin-bottom: 8px;
}

.plan-head {
  min-height: 120px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: rgba(2, 12, 25, 0.16);
}

.plan-label-col.plan-head {
  background: transparent;
  min-height: 0;
  color: #d8e7f7;
  font-size: 16px;
  font-weight: 600;
}

.plan-head h3 {
  font-size: 20px;
  color: var(--text-hi);
  margin-bottom: 6px;
}

.plan-price {
  color: var(--text-mid);
  font-size: 14px;
}

.plan-price strong {
  color: #fff;
  font-size: 22px;
  margin-right: 4px;
}

.plan-recommend {
  background: rgba(45, 140, 255, 0.08);
  border: 1px solid rgba(53, 208, 255, 0.4);
}

.plan-recommend .plan-head {
  box-shadow: inset 0 0 0 1px rgba(53, 208, 255, 0.15), inset 0 0 40px rgba(53, 208, 255, 0.04);
}

.plan-curve-tag {
  position: absolute;
  top: -1px;
  left: 20px;
  background: linear-gradient(90deg, var(--gold), #ffbe67);
  color: #0b1e35;
  font-size: 12px;
  padding: 5px 12px 7px;
  border-radius: 0 0 8px 8px;
  font-weight: 700;
}

.plan-action {
  padding-top: 20px;
}

.plan-action a {
  width: 100%;
}

.mobile-plan-list {
  display: none;
}

/* CTA band */
.band-cta {
  position: relative;
  overflow: hidden;
  margin: 18px 0 0;
  border-radius: 24px;
  padding: 56px 62px;
  background:
    linear-gradient(105deg, rgba(7, 24, 47, 0.94), rgba(4, 18, 38, 0.84)),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  box-shadow: var(--shadow-card), inset 0 1px 0 rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(145, 195, 255, 0.18);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.band-cta::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 52% 120%, rgba(53, 208, 255, 0.08), transparent 58%);
  pointer-events: none;
}

.band-main {
  position: relative;
  z-index: 1;
}

.band-main h2 {
  font-size: 27px;
  margin-bottom: 10px;
}

.band-main p {
  color: var(--text-mid);
  font-size: 15px;
  max-width: 660px;
}

.band-actions {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  gap: 12px;
  position: relative;
  z-index: 1;
}

/* News / latest */
.news-section {
  background: rgba(4, 16, 30, 0.25);
  border-top: 1px solid rgba(145, 195, 255, 0.08);
  border-bottom: 1px solid rgba(145, 195, 255, 0.08);
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.news-card {
  background: rgba(13, 28, 50, 0.58);
  border: 1px solid rgba(145, 195, 255, 0.14);
  border-radius: 18px;
  overflow: hidden;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: transform 0.28s ease, border-color 0.28s ease, box-shadow 0.28s ease;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-card);
}

.news-card:hover {
  transform: translateY(-6px);
  border-color: rgba(53, 208, 255, 0.38);
  box-shadow: 0 28px 60px rgba(0, 5, 18, 0.55), 0 0 34px rgba(45, 140, 255, 0.08);
}

.news-thumb {
  position: relative;
  display: block;
  aspect-ratio: 16 / 10;
  background-color: #0a1b34;
  background-size: cover;
  background-position: center;
  overflow: hidden;
}

.news-thumb::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(5, 15, 30, 0.4));
}

.news-thumb .thumb-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  background: rgba(7, 17, 31, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: #ffffff;
  font-size: 12px;
  border-radius: 999px;
  padding: 4px 12px;
}

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

.news-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
  font-size: 12px;
  color: var(--text-low);
}

.news-meta .news-cat {
  color: var(--accent);
  font-size: 12px;
  background: rgba(53, 208, 255, 0.09);
  border: 1px solid rgba(53, 208, 255, 0.16);
  padding: 3px 9px;
  border-radius: 999px;
}

.news-card h3 {
  font-size: 19px;
  line-height: 1.55;
  color: var(--text-hi);
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-desc {
  color: var(--text-mid);
  font-size: 14px;
  line-height: 1.78;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 16px;
}

.news-link {
  margin-top: auto;
  color: var(--accent);
  font-size: 13px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.news-link i {
  transition: transform 0.2s;
}

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

.empty-state {
  grid-column: 1 / -1;
  border: 1px dashed rgba(145, 195, 255, 0.28);
  border-radius: 20px;
  padding: 54px 28px;
  text-align: center;
  background: rgba(16, 32, 54, 0.35);
  color: var(--text-mid);
}

.empty-state .empty-circle {
  width: 56px;
  height: 56px;
  margin: 0 auto 18px;
  border-radius: 50%;
  background: rgba(53, 208, 255, 0.1);
  border: 1px solid rgba(53, 208, 255, 0.22);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: var(--accent);
}

.empty-state p {
  font-size: 15px;
}

/* contact section */
.contact-section {
  padding-top: 24px;
}

.contact-layout {
  display: grid;
  grid-template-columns: 1.3fr 0.8fr;
  gap: 36px;
  align-items: start;
}

.form-card {
  background: rgba(13, 28, 50, 0.66);
  border: 1px solid rgba(145, 195, 255, 0.16);
  border-radius: 24px;
  padding: 28px 30px 26px;
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  box-shadow: var(--shadow-card), inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.form-card h3 {
  font-size: 22px;
  margin-bottom: 8px;
}

.form-card > p {
  color: var(--text-mid);
  font-size: 14px;
  margin-bottom: 22px;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

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

.field-group.full {
  grid-column: 1 / -1;
}

.field-group label {
  font-size: 14px;
  color: #d6e3f2;
  font-weight: 500;
}

.field-group input,
.field-group select,
.field-group textarea {
  width: 100%;
  background: rgba(3, 12, 24, 0.56);
  border: 1px solid rgba(145, 195, 255, 0.18);
  border-radius: 11px;
  color: var(--text-hi);
  font-size: 15px;
  padding: 0 14px;
  height: 48px;
  transition: border-color 0.22s, box-shadow 0.22s, background 0.22s;
}

.field-group textarea {
  height: 112px;
  padding: 12px 14px;
  resize: vertical;
}

.field-group input::placeholder,
.field-group textarea::placeholder {
  color: #5a6d82;
}

.field-group input:focus,
.field-group select:focus,
.field-group textarea:focus {
  border-color: rgba(53, 208, 255, 0.7);
  box-shadow: 0 0 0 4px rgba(53, 208, 255, 0.1), 0 0 20px rgba(53, 208, 255, 0.08);
  outline: none;
  background: rgba(4, 15, 29, 0.76);
}

.select-wrap {
  position: relative;
}

.select-wrap select {
  appearance: none;
  -webkit-appearance: none;
  padding-right: 42px;
}

.select-wrap i {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 0;
  height: 0;
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
  border-top: 6px solid var(--accent);
  pointer-events: none;
}

.form-submit {
  margin-top: 20px;
}

.form-status {
  display: none;
  margin-top: 16px;
  border: 1px solid rgba(71, 228, 155, 0.28);
  background: rgba(71, 228, 155, 0.08);
  color: #a1f1c6;
  font-size: 14px;
  border-radius: 10px;
  padding: 12px 16px;
}

.form-status.show {
  display: block;
}

.contact-side {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.mini-card {
  background: rgba(13, 28, 50, 0.5);
  border: 1px solid rgba(145, 195, 255, 0.13);
  border-radius: 18px;
  padding: 22px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.mini-card h4 {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 17px;
  margin-bottom: 14px;
}

.mini-card h4 i {
  color: var(--accent);
}

.mini-card .contact-line {
  color: var(--text-mid);
  font-size: 15px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
}

.mini-card .contact-line b {
  color: var(--text-hi);
  font-weight: 600;
}

/* FAQ */
.faq-wrap {
  margin-top: 10px;
}

.faq-item {
  border: 1px solid rgba(145, 195, 255, 0.16);
  border-radius: 15px;
  background: rgba(13, 28, 50, 0.48);
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color 0.25s, background 0.25s;
}

.faq-item[open] {
  border-color: rgba(53, 208, 255, 0.38);
  background: rgba(17, 35, 60, 0.64);
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  list-style: none;
  cursor: pointer;
  padding: 18px 20px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-hi);
  transition: color 0.2s;
  user-select: none;
}

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

.faq-item summary::after {
  content: "+";
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: rgba(53, 208, 255, 0.12);
  border: 1px solid rgba(53, 208, 255, 0.3);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 17px;
  font-weight: 400;
  flex-shrink: 0;
  transition: transform 0.25s, background 0.25s;
}

.faq-item[open] summary::after {
  transform: rotate(135deg);
  background: rgba(53, 208, 255, 0.24);
  border-color: var(--accent);
}

.faq-answer {
  padding: 0 20px 20px;
  color: var(--text-mid);
  font-size: 15px;
  line-height: 1.85;
  border-top: 1px solid rgba(53, 208, 255, 0.1);
  margin: 0 0 0;
  padding-top: 14px;
}

/* footer */
.site-footer {
  background: #04101e;
  position: relative;
  margin-top: 36px;
  padding: 68px 0 120px;
  border-top: 1px solid rgba(145, 195, 255, 0.08);
  background-image: radial-gradient(ellipse at 62% 120%, rgba(45, 140, 255, 0.06), transparent 44%);
}

.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 42px;
}

.footer-brand .brand {
  margin-bottom: 18px;
}

.footer-desc {
  color: var(--text-mid);
  font-size: 14px;
  max-width: 320px;
  line-height: 1.9;
}

.footer-col h5 {
  color: var(--text-hi);
  font-size: 15px;
  margin-bottom: 18px;
  font-weight: 600;
}

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

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

.footer-col a {
  color: var(--text-mid);
  font-size: 14px;
  transition: color 0.2s, padding-left 0.25s;
}

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

.footer-news {
  background: rgba(255, 255, 255, 0.045);
  border-radius: 14px;
  padding: 18px 18px 14px;
  font-size: 13px;
  color: var(--text-mid);
}

.footer-news strong {
  color: var(--text-hi);
  font-size: 14px;
  display: block;
  margin-bottom: 8px;
}

.footer-bottom {
  border-top: 1px solid rgba(145, 195, 255, 0.1);
  padding-top: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
  color: var(--text-low);
  font-size: 13px;
}

.footer-domain {
  background: rgba(145, 195, 255, 0.04);
  border: 1px solid rgba(145, 195, 255, 0.08);
  padding: 8px 16px;
  border-radius: 999px;
}

.mobile-bottom-nav {
  display: none;
}

/* responsive */
@media (max-width: 1200px) {
  .level-grid {
    grid-template-columns: 1fr 1.05fr 1fr;
    gap: 15px;
  }

  .level-card {
    padding: 22px 18px 18px;
  }

  .container {
    width: min(var(--content-width), calc(100% - 32px));
  }
}

@media (max-width: 1024px) {
  .hero h1 {
    font-size: 43px;
  }

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

  .desktop-nav {
    gap: 14px;
  }

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

  .level-card.level-main {
    margin-top: 24px;
  }

  .level-card:nth-child(3) {
    grid-column: 1 / -1;
  }

  .level-card:nth-child(3) {
    width: calc(50% - 8px);
    justify-self: center;
  }
}

@media (max-width: 992px) {
  .hero-layout {
    grid-template-columns: 1fr;
    gap: 24px;
    padding-top: 16px;
  }

  .hero {
    min-height: auto;
    padding-top: 72px;
  }

  .console-wrap {
    max-width: 560px;
  }

  .main-nav {
    gap: 12px;
  }

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

  .btn-header {
    display: none;
  }

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

  .contact-side {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }

  .faq-wrap .faq-item {
    grid-column: 1 / -1;
  }
}

@media (max-width: 768px) {
  :root {
    --space-section: 64px;
  }

  .main-nav,
  .header-cta {
    display: none;
  }

  .site-header {
    height: 68px;
    background: rgba(7, 17, 31, 0.74);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
  }

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

  .hero {
    padding: 42px 0 54px;
  }

  .hero h1 {
    font-size: 34px;
  }

  .hero-sub {
    font-size: 15px;
  }

  .level-grid,
  .level-card:nth-child(3) {
    grid-template-columns: 1fr;
    width: 100%;
  }

  .level-card,
  .level-card.level-main {
    margin-top: 0;
  }

  .level-card.level-main {
    order: -1;
  }

  .plan-switch-desktop {
    display: none;
  }

  .mobile-plan-list {
    display: flex;
    flex-direction: column;
    gap: 18px;
  }

  .mobile-plan {
    border: 1px solid rgba(145, 195, 255, 0.15);
    border-radius: 18px;
    background: rgba(15, 29, 50, 0.62);
    padding: 24px;
  }

  .mobile-plan.recommended {
    border-color: rgba(53, 208, 255, 0.48);
    background: rgba(45, 140, 255, 0.08);
    order: -1;
    box-shadow: 0 0 0 3px rgba(53, 208, 255, 0.08);
  }

  .mobile-plan h3 {
    font-size: 20px;
    margin-bottom: 10px;
  }

  .mobile-plan .plan-price {
    margin-bottom: 18px;
  }

  .mobile-plan .plan-points {
    list-style: none;
    padding: 0;
    margin-bottom: 16px;
  }

  .mobile-plan .plan-points li {
    position: relative;
    padding: 8px 0 8px 24px;
    color: var(--text-mid);
    font-size: 14px;
  }

  .mobile-plan .plan-points li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 17px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
    opacity: 0.7;
  }

  .band-cta {
    flex-direction: column;
    align-items: flex-start;
    padding: 32px 26px;
  }

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

  .news-grid .news-card:first-child {
    grid-column: auto;
  }

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

  .field-group.full {
    grid-column: auto;
  }

  .contact-side {
    grid-template-columns: 1fr;
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 30px;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

  .mobile-bottom-nav {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: calc(66px + env(safe-area-inset-bottom));
    padding-bottom: env(safe-area-inset-bottom);
    background: rgba(4, 16, 30, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-top: 1px solid rgba(145, 195, 255, 0.12);
    z-index: 100;
    align-items: center;
    justify-content: space-around;
  }

  .mobile-tab {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3px;
    color: var(--text-low);
    font-size: 11px;
    padding: 6px 13px;
    border-radius: 12px;
    transition: color 0.2s;
  }

  .mobile-tab i {
    font-size: 17px;
    font-style: normal;
    line-height: 1;
  }

  .mobile-tab.active {
    color: var(--accent);
  }

  .site-footer {
    padding-bottom: 90px;
  }
}

@media (max-width: 520px) {
  .container {
    width: calc(100% - 24px);
  }

  .section {
    --space-section: 54px;
  }

  .section-head h2 {
    font-size: 25px;
  }

  .section-head .section-lead {
    font-size: 14px;
  }

  .hero-layout {
    gap: 16px;
  }

  .hero h1 {
    font-size: 29px;
    line-height: 1.28;
    word-break: break-word;
  }

  .hero-badges {
    gap: 12px;
  }

  .hero-badge {
    border-right: none;
    padding-right: 0;
    padding-bottom: 4px;
  }

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

  .btn-primary,
  .btn-ghost {
    width: 100%;
  }

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

  .level-card {
    padding: 18px;
  }

  .band-main h2 {
    font-size: 22px;
  }

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

  .band-actions {
    width: 100%;
  }

  .band-actions .btn-light,
  .band-actions .btn-primary {
    width: 100%;
  }

  .form-card {
    padding: 20px 16px;
  }

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

  .footer-brand {
    grid-column: auto;
  }

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

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

/* roulang page: article */
:root{
  --bg-base:#07111F;
  --bg-deep:#04101E;
  --glass-bg:rgba(17,33,55,.62);
  --glass-border:rgba(145,195,255,.16);
  --brand:#2D8CFF;
  --brand-strong:#1E6FE0;
  --accent:#35D0FF;
  --gold:#F5B544;
  --text-hi:#F2F7FF;
  --text-mid:#9FB2C9;
  --text-low:#6A7D94;
  --glow-primary:0 0 24px rgba(45,140,255,.35);
  --glow-soft:0 0 18px rgba(53,208,255,.18);
  --radius-sm:10px;
  --radius-md:16px;
  --radius-lg:22px;
  --shadow-card:0 20px 50px rgba(0,10,25,.45);
  --font-main:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:
    radial-gradient(900px 500px at 85% -10%,rgba(45,140,255,.18),transparent 60%),
    radial-gradient(700px 400px at -10% 30%,rgba(53,208,255,.08),transparent 55%),
    var(--bg-base);
  color:var(--text-hi);
  font-family:var(--font-main);
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font-family:inherit}
h1,h2,h3,h4,h5,h6{line-height:1.4;margin:0;font-weight:700}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.container{width:min(1180px,100% - 48px);margin-inline:auto}
::selection{background:rgba(53,208,255,.3)}
:focus-visible{outline:3px solid rgba(53,208,255,.5);outline-offset:3px;border-radius:4px}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:80;
  backdrop-filter:blur(18px) saturate(120%);
  background:rgba(7,17,31,.72);
  border-bottom:1px solid rgba(145,195,255,.1);
}
.site-header.is-scrolled{box-shadow:0 12px 40px rgba(0,8,20,.35)}
.header-inner{height:72px;display:flex;align-items:center;gap:24px}
.brand{display:inline-flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{
  width:42px;height:42px;border-radius:12px;
  background:linear-gradient(135deg,#2D8CFF,#35D0FF);
  display:grid;place-items:center;color:#fff;font-weight:800;font-size:16px;
  letter-spacing:.5px;box-shadow:0 8px 22px rgba(45,140,255,.3);
  position:relative;overflow:hidden;
}
.brand-mark::after{
  content:"";position:absolute;top:0;left:-60%;width:45%;height:100%;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.35),transparent);
  transform:skewX(-20deg);
}
.brand:hover .brand-mark::after{animation:scan 1.1s ease}
@keyframes scan{0%{left:-60%}100%{left:125%}}
.brand-name{
  font-size:19px;font-weight:800;line-height:1.2;
  background:linear-gradient(90deg,#F2F7FF,#BDE3FF);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.brand-name small{display:block;font-size:11px;font-weight:500;letter-spacing:1.2px;color:var(--text-mid);-webkit-text-fill-color:var(--text-mid)}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  position:relative;padding:9px 16px;font-size:15px;color:var(--text-mid);
  border-radius:999px;transition:all .25s ease;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:-2px;width:0;height:2px;
  background:var(--accent);border-radius:4px;transform:translateX(-50%);transition:width .3s ease;
}
.nav-link:hover{color:var(--text-hi);background:rgba(53,208,255,.06)}
.nav-link:hover::after{width:18px}
.nav-link.is-active{color:#fff;background:rgba(45,140,255,.14)}
.nav-link.is-active::after{width:24px;box-shadow:0 0 12px var(--accent)}
.header-cta{margin-left:8px}
.btn-header{
  display:inline-flex;align-items:center;justify-content:center;height:40px;padding:0 22px;
  border-radius:999px;font-size:14px;font-weight:600;color:#fff;
  background:linear-gradient(120deg,#2D8CFF,#35D0FF);
  box-shadow:var(--glow-primary);transition:all .25s ease;border:1px solid rgba(255,255,255,.12);
}
.btn-header:hover{transform:translateY(-2px);filter:brightness(1.1);box-shadow:0 8px 30px rgba(45,140,255,.45)}
.btn-header:active{transform:translateY(0)}

/* 底部移动端导航 */
.mobile-dock{display:none}

/* 文章页横幅 */
.article-banner{
  position:relative;padding:58px 0 50px;min-height:280px;
  display:flex;align-items:center;
  background:
    linear-gradient(90deg,rgba(7,17,31,.96) 0%,rgba(7,17,31,.82) 50%,rgba(7,17,31,.55) 100%),
    url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
  border-bottom:1px solid rgba(145,195,255,.12);
  overflow:hidden;
}
.article-banner::after{
  content:"";position:absolute;bottom:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(53,208,255,.4),transparent);
}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--text-mid);
  margin-bottom:22px;padding:10px 16px;border-radius:var(--radius-sm);
  background:rgba(255,255,255,.04);border:1px solid var(--glass-border);width:fit-content;max-width:100%;
}
.crumb a{transition:.2s}
.crumb a:hover{color:var(--accent)}
.crumb-sep{opacity:.5}
.crumb-current{color:var(--text-hi)}
.banner-label{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:18px;
  padding:7px 14px;border-radius:999px;font-size:13px;color:#fff;
  background:rgba(45,140,255,.16);border:1px solid rgba(45,140,255,.4);
}
.banner-label::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent)}
.article-banner h1{
  max-width:900px;font-size:clamp(28px,4vw,46px);line-height:1.3;
  letter-spacing:.5px;color:#fff;text-shadow:0 4px 30px rgba(0,10,30,.5);
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px 28px;margin-top:26px;
  font-size:14px;color:var(--text-mid);
}
.meta-cat{
  display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:999px;
  background:rgba(245,181,68,.1);border:1px solid rgba(245,181,68,.3);color:#FBE0A6;
}
.meta-date::before{content:"";display:inline-block;width:16px;height:1px;background:var(--accent);margin-right:9px;vertical-align:middle}
.meta-source{display:inline-flex;align-items:center;gap:6px}
.meta-source i{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 8px var(--accent)}

/* 正文布局 */
.main-wrap{padding:0 0 72px;position:relative}
.main-wrap::before{
  content:"";position:absolute;top:0;left:50%;width:1px;height:100%;
  background:linear-gradient(180deg,transparent,rgba(145,195,255,.12) 10%,rgba(145,195,255,.12) 80%,transparent);
  transform:translateX(-50%);pointer-events:none;
}
.article-content{
  max-width:1140px;margin:-38px auto 0;position:relative;z-index:2;
}
.article-paper{
  background:var(--glass-bg);
  backdrop-filter:blur(16px);
  border:1px solid var(--glass-border);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.06);
  padding:clamp(24px,4vw,52px);
}
.article-lead-image{
  border-radius:var(--radius-md);overflow:hidden;
  margin-bottom:34px;position:relative;
  box-shadow:0 24px 60px rgba(0,0,0,.35);
}
.article-lead-image img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  transition:transform .6s ease;
}
.article-paper:hover .article-lead-image img{transform:scale(1.02)}
.article-lead-tag{
  position:absolute;left:18px;bottom:18px;z-index:2;
  padding:6px 16px;border-radius:999px;font-size:13px;color:#fff;
  background:rgba(7,17,31,.65);backdrop-filter:blur(8px);
  border:1px solid rgba(53,208,255,.35);display:flex;align-items:center;gap:8px;
}
.article-lead-tag i{width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 8px var(--accent)}

/* CMS 正文排版 */
.article-body{
  max-width:860px;margin:0 auto;
  font-size:16.5px;color:#D7E3F2;line-height:1.95;
}
.article-body>*+*{margin-top:24px}
.article-body p{color:#CDDCEE}
.article-body strong{color:#fff;font-weight:700}
.article-body h2{
  font-size:24px;color:#fff;margin:42px 0 18px;line-height:1.45;
  padding-left:16px;border-left:3px solid var(--accent);
}
.article-body h3{font-size:20px;color:#F2F7FF;margin:34px 0 14px}
.article-body a{color:var(--accent);border-bottom:1px solid rgba(53,208,255,.4);transition:.2s}
.article-body a:hover{border-bottom-color:var(--accent);text-shadow:0 0 8px rgba(53,208,255,.3)}
.article-body ul,.article-body ol{padding-left:6px}
.article-body ul li{
  padding:6px 0 6px 26px;position:relative;color:#CDDCEE;
}
.article-body ul li::before{
  content:"";position:absolute;left:8px;top:17px;width:9px;height:9px;
  border-radius:3px;background:linear-gradient(135deg,var(--brand),var(--accent));
  box-shadow:0 0 10px rgba(53,208,255,.4);
}
.article-body ol{counter-reset:list}
.article-body ol li{counter-increment:list;padding:6px 0 6px 38px;position:relative;color:#CDDCEE}
.article-body ol li::before{
  content:counter(list);position:absolute;left:0;top:8px;width:26px;height:26px;
  border-radius:8px;display:grid;place-items:center;font-size:13px;font-weight:700;color:#fff;
  background:rgba(45,140,255,.18);border:1px solid rgba(45,140,255,.35);
}
.article-body blockquote{
  margin:30px 0;padding:22px 26px;border-radius:var(--radius-md);
  background:rgba(53,208,255,.06);border-left:3px solid var(--accent);
  color:#BFE6FF;font-size:15.5px;
}
.article-body code{
  background:rgba(53,208,255,.1);border:1px solid rgba(53,208,255,.2);
  padding:2px 8px;border-radius:6px;font-size:.9em;color:#BDEBFF;
}
.article-body img{border-radius:var(--radius-md);margin:30px 0;box-shadow:0 18px 44px rgba(0,10,30,.4)}
.article-body table{
  width:100%;border-collapse:separate;border-spacing:0;margin:28px 0;border-radius:var(--radius-md);overflow:hidden;
}
.article-body th,.article-body td{
  padding:12px 16px;border-bottom:1px solid rgba(145,195,255,.12);text-align:left;font-size:15px;
}
.article-body th{background:rgba(45,140,255,.12);color:#fff;font-weight:600}
.article-body tr:last-child td{border-bottom:0}

/* 未找到 */
.not-found{
  padding:80px 0;text-align:center;max-width:640px;margin:0 auto;
}
.not-found-icon{
  width:84px;height:84px;margin:0 auto 26px;border-radius:24px;
  display:grid;place-items:center;font-size:34px;font-weight:800;color:var(--accent);
  background:rgba(53,208,255,.08);border:1px dashed rgba(53,208,255,.4);
  box-shadow:var(--glow-soft);
}
.not-found h2{font-size:28px;color:#fff}
.not-found p{color:var(--text-mid);margin:16px 0 30px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:50px;padding:0 32px;border-radius:12px;font-size:15px;font-weight:700;
  border:0;cursor:pointer;text-decoration:none;transition:all .25s ease;
}
.btn-primary{
  color:#fff;
  background:linear-gradient(120deg,#1E6FE0,#35D0FF);
  box-shadow:var(--glow-primary);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.12);box-shadow:0 10px 34px rgba(53,208,255,.5)}
.btn-primary:active{transform:translateY(0)}
.btn-secondary{
  color:var(--text-hi);background:rgba(255,255,255,.03);
  border:1px solid rgba(145,195,255,.28);backdrop-filter:blur(8px);
}
.btn-secondary:hover{border-color:var(--accent);color:#fff;box-shadow:inset 0 0 20px rgba(53,208,255,.08),var(--glow-soft)}
.btn-secondary:active{transform:translateY(1px)}

/* 文章底部 */
.article-end{
  margin-top:52px;padding-top:34px;
  border-top:1px solid rgba(145,195,255,.14);
}
.article-tags{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:26px;
}
.article-tags span{font-size:14px;color:var(--text-mid);margin-right:4px}
.tag-chip{
  display:inline-block;padding:5px 14px;border-radius:999px;font-size:13px;
  color:#CFE9FF;background:rgba(45,140,255,.1);border:1px solid rgba(45,140,255,.25);
  transition:.2s;
}
.tag-chip:hover{color:#fff;border-color:var(--accent);box-shadow:0 0 14px rgba(53,208,255,.18)}
.article-back{
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
}

/* 相关推荐 */
.related-section{padding:66px 0 0}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:30px;
}
.section-title-group{display:flex;align-items:center;gap:14px}
.section-badge{
  width:42px;height:42px;border-radius:13px;display:grid;place-items:center;flex-shrink:0;
  background:rgba(45,140,255,.14);border:1px solid rgba(45,140,255,.3);
  box-shadow:var(--glow-soft);
}
.section-badge svg{width:20px;height:20px;stroke:var(--accent);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.section-title{font-size:28px;color:#fff;letter-spacing:.5px}
.section-sub{color:var(--text-mid);font-size:14px;margin-top:6px}
.related-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:26px;
}
.related-card{
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  border-radius:var(--radius-md);
  overflow:hidden;position:relative;
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
  display:flex;flex-direction:column;
}
.related-card:hover{transform:translateY(-6px);border-color:rgba(53,208,255,.5);box-shadow:0 24px 50px rgba(0,10,30,.45),var(--glow-soft)}
.rc-cover{position:relative;aspect-ratio:16/9;overflow:hidden}
.rc-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.related-card:hover .rc-cover img{transform:scale(1.06)}
.rc-cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 50%,rgba(7,17,31,.75));
}
.rc-cat{
  position:absolute;left:14px;top:14px;z-index:2;padding:4px 12px;
  border-radius:999px;font-size:12px;background:rgba(7,17,31,.62);
  border:1px solid rgba(53,208,255,.35);color:#E3F4FF;
  backdrop-filter:blur(8px);
}
.rc-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.rc-body h3{
  font-size:17px;line-height:1.5;color:#EAF3FF;font-weight:600;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rc-body p{font-size:14px;color:var(--text-mid);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rc-foot{
  margin-top:auto;padding-top:8px;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-low);
}
.rc-link{
  display:inline-flex;align-items:center;gap:6px;color:var(--accent);font-size:13px;
}
.rc-link svg{width:14px;height:14px;fill:none;stroke:var(--accent);stroke-width:2;transition:transform .2s}
.rc-link:hover svg{transform:translateX(4px)}

/* 服务咨询 CTA 区 */
.contact-cta{
  padding:66px 0 0;
}
.cta-panel{
  position:relative;
  border-radius:var(--radius-lg);
  border:1px solid rgba(145,195,255,.2);
  background:
    radial-gradient(400px 240px at 85% 10%,rgba(53,208,255,.16),transparent 60%),
    rgba(17,33,55,.6);
  backdrop-filter:blur(16px);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.06);
  padding:clamp(26px,4vw,46px);
  display:grid;grid-template-columns:1.1fr 1fr;gap:44px;
  overflow:hidden;
}
.cta-panel::after{
  content:"";position:absolute;top:-60px;right:-60px;width:200px;height:200px;border-radius:50%;
  background:radial-gradient(circle,rgba(45,140,255,.18),transparent 70%);pointer-events:none;
}
.cta-copy h2{font-size:28px;color:#fff}
.cta-copy .claim{
  margin-top:14px;color:var(--text-mid);font-size:15px;position:relative;z-index:1;
}
.cta-points{margin:22px 0;display:grid;gap:12px;position:relative;z-index:1}
.cta-points li{
  display:flex;align-items:flex-start;gap:10px;color:#C6D7EA;font-size:15px;
}
.cta-points li::before{
  content:"";flex:0 0 auto;width:6px;height:6px;border-radius:50%;background:var(--accent);
  box-shadow:0 0 10px var(--accent);margin-top:11px;
}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;position:relative;z-index:1}
.form-card h3{font-size:19px;color:#fff;margin-bottom:22px;display:flex;align-items:center;gap:10px}
.form-card h3::before{content:"";width:8px;height:22px;border-radius:3px;background:linear-gradient(180deg,var(--brand),var(--accent))}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-group{display:flex;flex-direction:column;gap:7px}
.form-group.full{grid-column:1/-1}
.form-label{font-size:13px;color:var(--text-mid);font-weight:500}
.form-control{
  height:46px;padding:0 15px;width:100%;border-radius:11px;
  background:rgba(4,16,30,.55);border:1px solid rgba(145,195,255,.2);
  color:#EAF3FF;font-size:15px;transition:all .25s ease;outline:none;
}
textarea.form-control{height:auto;padding:12px 15px;min-height:86px;resize:vertical}
.form-control::placeholder{color:#4D5F76}
.form-control:focus{border-color:var(--brand);box-shadow:0 0 0 4px rgba(45,140,255,.15),var(--glow-soft)}
select.form-control{
  appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%239FB2C9' stroke-width='1.6' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;
  padding-right:36px;
}
.form-btn{
  grid-column:1/-1;display:flex;justify-content:flex-end;margin-top:4px;
  position:relative;
}
.form-btn .btn{gap:8px}
.form-btn .btn svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.form-note{font-size:12px;color:var(--text-low);margin-top:-4px}
.cta-side-contact{
  grid-column:1/2;display:flex;gap:18px;align-items:center;margin-top:8px;
  padding:16px 20px;border-radius:var(--radius-md);
  background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.06);
  position:relative;z-index:1;
}
.cta-side-contact strong{font-size:15px;color:#DFF5FF}
.cta-side-contact span{color:var(--text-mid);font-size:13px}

/* FAQ 简化在文章页 */
.faq-strip{
  margin-top:52px;
}
.faq-strip details{
  background:rgba(255,255,255,.03);
  border:1px solid rgba(145,195,255,.14);
  border-radius:var(--radius-md);
  margin-bottom:12px;overflow:hidden;
  transition:border-color .2s;
}
.faq-strip details[open]{border-color:rgba(53,208,255,.4);background:rgba(53,208,255,.05)}
.faq-strip summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:18px 22px;font-weight:600;color:#E8F2FD;font-size:15.5px;
  transition:.2s;
}
.faq-strip summary::-webkit-details-marker{display:none}
.faq-strip summary:hover{color:#fff;background:rgba(255,255,255,.02)}
.faq-icon{
  flex:0 0 auto;width:28px;height:28px;border-radius:9px;display:grid;place-items:center;
  border:1px solid rgba(145,195,255,.3);color:var(--accent);font-size:18px;
  transition:all .3s ease;font-style:normal;
}
details[open] .faq-icon{transform:rotate(135deg);background:rgba(53,208,255,.12);border-color:var(--accent)}
.faq-body{padding:0 22px 20px;color:var(--text-mid);font-size:14.5px;line-height:1.9;max-width:90%}

/* 页脚 */
.site-footer{
  background:var(--bg-deep);border-top:1px solid rgba(145,195,255,.12);
  position:relative;margin-top:80px;
}
.site-footer::before{
  content:"";display:block;height:1px;
  background:linear-gradient(90deg,transparent,rgba(53,208,255,.55),transparent);
}
.footer-top{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:38px;
  padding:60px 0 40px;
}
.footer-desc{color:var(--text-mid);font-size:14px;line-height:1.9;max-width:330px;margin-top:20px}
.footer-col h5{
  font-size:15px;color:#EAF3FF;margin-bottom:18px;letter-spacing:.5px;
  display:flex;align-items:center;gap:8px;
}
.footer-col h5::before{content:"";width:4px;height:16px;border-radius:2px;background:linear-gradient(180deg,var(--brand),var(--accent))}
.footer-col ul{display:grid;gap:11px}
.footer-col ul a{color:var(--text-mid);font-size:14px;transition:all .22s ease;display:inline-flex;align-items:center;gap:6px}
.footer-col ul a:hover{color:var(--text-hi);transform:translateX(4px)}
.footer-col ul a::before{content:"";width:5px;height:5px;border-radius:50%;background:rgba(53,208,255,.4);opacity:0;transition:.2s}
.footer-col ul a:hover::before{opacity:1;box-shadow:0 0 6px var(--accent)}
.footer-news{
  font-size:13.5px;color:var(--text-mid);margin-bottom:14px;line-height:2;
  background:rgba(255,255,255,.03);border:1px solid rgba(145,195,255,.1);
  padding:16px 18px;border-radius:var(--radius-md);
}
.footer-news strong{color:#DDEAFB;display:block;font-size:14px;margin-bottom:6px}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding:22px 0 28px;border-top:1px solid rgba(145,195,255,.1);
  font-size:13px;color:#556882;
}
.footer-bottom a{color:#556882;transition:.2s}
.footer-bottom a:hover{color:#9FB2C9}
.icp-text{margin-left:6px}
.footer-domain{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 14px;border-radius:999px;
  background:rgba(53,208,255,.05);border:1px solid rgba(53,208,255,.15);
  color:#89A9C4;font-size:12.5px;
}

/* 移动端底部 Tab */
.mobile-dock{
  position:fixed;bottom:0;left:0;right:0;z-index:90;
  background:rgba(7,17,31,.82);
  backdrop-filter:blur(20px);
  border-top:1px solid rgba(145,195,255,.16);
  display:none;
}
.dock-inner{display:flex;height:calc(62px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom)}
.dock-item{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  color:#68809A;font-size:11px;transition:.2s;position:relative;
}
.dock-item svg{width:21px;height:21px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.dock-item.active{color:var(--accent)}
.dock-item.active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:34px;height:2px;border-radius:2px;background:var(--accent);box-shadow:0 0 12px var(--accent);
}
.dock-item:hover{color:var(--text-hi)}
.dock-cta{
  background:rgba(53,208,255,.1);
}

/* 返回顶部 */
.to-top{
  position:fixed;right:24px;bottom:100px;z-index:50;
  width:44px;height:44px;border-radius:14px;display:grid;place-items:center;
  background:rgba(17,33,55,.8);border:1px solid rgba(53,208,255,.3);
  backdrop-filter:blur(12px);color:var(--accent);font-size:20px;
  opacity:0;visibility:hidden;transition:.3s;cursor:pointer;
  box-shadow:var(--glow-soft);
}
.to-top.show{opacity:1;visibility:visible;bottom:80px}
.to-top:hover{transform:translateY(-4px)}
@media(min-width:1200px){
  body{padding-bottom:0}
}
@media(max-width:1024px){
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .footer-top{grid-template-columns:1fr 1fr;gap:34px}
  .cta-panel{grid-template-columns:1fr;gap:34px}
  .cta-side-contact{grid-column:1}
  .article-banner{min-height:250px}
}
@media(max-width:767px){
  .main-nav,.header-cta{display:none}
  .site-header .container{height:64px}
  .brand-name{font-size:17px}
  .brand-mark{width:38px;height:38px;border-radius:11px}
  .article-content{margin-top:-20px}
  .article-paper{padding:22px 18px 34px;border-radius:18px}
  .article-banner{padding:42px 0 38px}
  .article-banner h1{font-size:26px}
  .article-meta{gap:10px 16px;font-size:13px}
  .container{width:min(100% - 28px,1180px)}
  .related-section{padding:44px 0 0}
  .section-title{font-size:22px}
  .related-grid{grid-template-columns:1fr;gap:18px}
  .section-head{flex-direction:column;align-items:flex-start}
  .form-actions{flex-direction:column;align-items:stretch}
  .footer-top{grid-template-columns:1fr;gap:28px;padding:44px 0 34px}
  .footer-bottom{flex-direction:column;justify-content:center;text-align:center}
  .mobile-dock{display:block}
  main,footer{padding-bottom:0}
  .site-footer{margin-bottom:calc(62px + env(safe-area-inset-bottom));margin-top:60px}
  .cta-actions{flex-direction:column}
  .cta-actions .btn{width:100%}
  .article-back{flex-direction:column;align-items:flex-start}
  .form-grid{grid-template-columns:1fr}
  .form-group.full{grid-column:auto}
  .faq-strip summary{font-size:14.5px;padding:16px}
  .faq-body{max-width:100%}
  .article-body{font-size:15.5px}
  .to-top.show{bottom:86px}
}
@media(max-width:480px){
  .article-paper{padding:18px 14px 28px}
  .article-lead-image{margin-bottom:22px}
  .crumb{font-size:12.5px;padding:8px 12px}
  .banner-label{font-size:12px}
  .article-banner h1{font-size:23px}
  .article-body h2{font-size:20px}
  .article-body h3{font-size:18px}
  .brand-name small{display:none}
  .cta-panel{padding:24px 18px}
  .cta-copy h2{font-size:23px}
  .container{width:min(100% - 22px,1180px)}
}

/* roulang page: category1 */
:root {
  --max: 1180px;
  --bg-deep: #060e1a;
  --bg-base: #081120;
  --bg-soft: #0c1829;
  --glass-bg: rgba(17, 33, 55, .55);
  --glass-bg-soft: rgba(17, 33, 55, .38);
  --glass-border: rgba(145, 195, 255, .14);
  --glass-border-strong: rgba(145, 195, 255, .28);
  --brand: #2d8cff;
  --brand-strong: #35d0ff;
  --gold: #f5b544;
  --text-hi: #f2f7ff;
  --text-mid: #9fb2c9;
  --text-low: #6a7d94;
  --shadow-card: 0 20px 50px rgba(0, 10, 25, .45);
  --shadow-glow: 0 8px 30px rgba(45, 140, 255, .26);
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 22px;
  --section-space: 88px;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg-deep);
  color: var(--text-hi);
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  overflow-x: hidden;
}
a {
  color: inherit;
  text-decoration: none;
}
img {
  max-width: 100%;
  display: block;
}
ul, ol {
  margin: 0;
  padding: 0;
  list-style: none;
}
h1, h2, h3, h4, h5 {
  margin: 0;
  line-height: 1.35;
  font-weight: 700;
  letter-spacing: .02em;
}
p {
  margin: 0;
}
button, input, select, textarea {
  font: inherit;
}
.container {
  width: min(var(--max), 100% - 48px);
  margin: 0 auto;
}
::selection {
  background: rgba(45, 140, 255, .3);
}
:focus-visible {
  outline: 3px solid rgba(53, 208, 255, .4);
  outline-offset: 3px;
  border-radius: 8px;
}

/* ========== header ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(6, 14, 26, .74);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(145, 195, 255, .09);
}
.header-inner {
  height: 72px;
  display: flex;
  align-items: center;
  gap: 28px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  flex-shrink: 0;
  color: var(--text-hi);
}
.brand-mark {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--brand), var(--brand-strong));
  border-radius: 12px;
  font-weight: 800;
  font-size: 16px;
  color: #06101f;
  box-shadow: 0 0 18px rgba(53, 208, 255, .32);
}
.brand-name {
  display: flex;
  flex-direction: column;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: .02em;
  line-height: 1.2;
}
.brand-name small {
  font-size: 11px;
  color: var(--text-low);
  font-weight: 400;
  letter-spacing: .1em;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}
.nav-link {
  position: relative;
  padding: 10px 16px;
  font-size: 15px;
  color: var(--text-mid);
  border-radius: 10px;
  transition: color .25s ease, background .25s ease;
}
.nav-link:hover {
  color: #fff;
  background: rgba(53, 208, 255, .07);
}
.nav-link.is-active {
  color: #fff;
}
.nav-link.is-active::after {
  content: "";
  position: absolute;
  bottom: 2px;
  left: 16px;
  right: 16px;
  height: 2px;
  background: linear-gradient(90deg, var(--brand), var(--brand-strong));
  border-radius: 3px;
  box-shadow: 0 0 12px rgba(53, 208, 255, .8);
}
.header-cta {
  margin-left: 6px;
}
.btn-header {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  padding: 0 20px;
  border-radius: 999px;
  border: 1px solid rgba(53, 208, 255, .36);
  color: #dff5ff;
  font-size: 14px;
  font-weight: 600;
  background: rgba(53, 208, 255, .08);
  box-shadow: 0 0 14px rgba(53, 208, 255, .08);
  transition: all .25s ease;
}
.btn-header:hover {
  border-color: var(--brand-strong);
  background: rgba(53, 208, 255, .16);
  color: #fff;
  box-shadow: 0 0 20px rgba(53, 208, 255, .2);
}
.nav-toggle {
  display: none;
  border: 0;
  background: none;
  color: var(--text-hi);
  cursor: pointer;
  padding: 8px;
}

/* ========== mobile bottom tab ========== */
.mobile-tabbar {
  display: none;
}

/* ========== buttons ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 12px;
  padding: 13px 22px;
  font-size: 15px;
  font-weight: 600;
  min-height: 48px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .22s ease, box-shadow .22s ease, background .22s ease, border-color .22s ease;
}
.btn-primary {
  background: linear-gradient(96deg, #2d8cff, #35d0ff);
  color: #06101f;
  box-shadow: 0 10px 32px rgba(45, 140, 255, .28);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 40px rgba(53, 208, 255, .42);
}
.btn-primary:active {
  transform: translateY(1px);
}
.btn-ghost {
  background: rgba(17, 33, 55, .48);
  border-color: rgba(145, 195, 255, .24);
  color: var(--text-hi);
}
.btn-ghost:hover {
  border-color: rgba(53, 208, 255, .55);
  color: #fff;
  background: rgba(53, 208, 255, .08);
  transform: translateY(-2px);
}
.btn-ghost:active {
  transform: translateY(1px);
}
.btn-lg {
  padding: 16px 30px;
  font-size: 16px;
}

/* ========== top band ========== */
.cat-banner {
  position: relative;
  padding: 72px 0 66px;
  background:
    linear-gradient(90deg, rgba(5, 13, 25, .96) 0%, rgba(7, 20, 36, .88) 55%, rgba(9, 25, 44, .76) 100%),
    url("/assets/images/backpic/back-1.webp") center / cover no-repeat;
  border-bottom: 1px solid rgba(145, 195, 255, .1);
}
.cat-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(600px 260px at 76% 14%, rgba(45, 140, 255, .22), transparent 70%);
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-low);
  margin-bottom: 30px;
  position: relative;
  z-index: 1;
}
.breadcrumb a {
  color: var(--text-mid);
  transition: color .2s;
}
.breadcrumb a:hover {
  color: var(--brand-strong);
}
.breadcrumb .sep {
  color: var(--text-low);
  opacity: .8;
}
.banner-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(300px, .65fr);
  gap: 54px;
  align-items: center;
}
.chip-live {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(53, 208, 255, .1);
  border: 1px solid rgba(53, 208, 255, .28);
  color: #c5ecff;
  font-size: 13px;
  font-weight: 500;
}
.chip-live i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--brand-strong);
  box-shadow: 0 0 10px var(--brand-strong);
  animation: breathe 1.8s infinite ease-in-out;
}
@keyframes breathe {
  0%, 100% {
    opacity: .45;
  }
  50% {
    opacity: 1;
  }
}
.page-h1 {
  font-size: clamp(32px, 4.4vw, 56px);
  line-height: 1.2;
  margin-top: 18px;
  color: var(--text-hi);
  letter-spacing: .01em;
}
.page-h1 .grad {
  display: block;
  margin-top: 4px;
  background: linear-gradient(110deg, #9cd6ff 0%, #35d0ff 48%, #2d8cff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.banner-sub {
  margin-top: 22px;
  max-width: 580px;
  color: var(--text-mid);
  font-size: 16px;
  line-height: 1.9;
}
.banner-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}
.pulse-panel {
  border-radius: var(--radius-lg);
  padding: 24px;
  background: linear-gradient(160deg, rgba(17, 33, 55, .76), rgba(8, 18, 32, .68));
  border: 1px solid var(--glass-border-strong);
  box-shadow: var(--shadow-card), inset 0 1px 0 rgba(255, 255, 255, .07);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  position: relative;
}
.pulse-panel::before {
  content: "";
  position: absolute;
  inset: -1px auto auto -1px;
  width: 88px;
  height: 44px;
  border-radius: var(--radius-lg) 0 0 0;
  background: linear-gradient(90deg, rgba(53, 208, 255, .36), transparent);
  pointer-events: none;
  opacity: .8;
}
.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 20px;
}
.panel-head strong {
  font-size: 16px;
}
.gold-badge {
  font-size: 11px;
  color: var(--gold);
  border: 1px solid rgba(245, 181, 68, .4);
  padding: 3px 9px;
  border-radius: 999px;
  background: rgba(245, 181, 68, .08);
  letter-spacing: .06em;
}
.domain-status {
  display: grid;
  gap: 12px;
  margin-top: 8px;
}
.status-row {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  padding: 11px 14px;
  background: rgba(6, 15, 28, .44);
  border: 1px solid rgba(145, 195, 255, .1);
  border-radius: 12px;
  font-size: 13px;
  color: var(--text-mid);
}
.status-row b {
  color: var(--text-hi);
  font-weight: 600;
}
.status-row .ok {
  color: var(--brand-strong);
  font-weight: 600;
}
.panel-foot {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid rgba(145, 195, 255, .12);
  font-size: 12px;
  color: var(--text-low);
  display: flex;
  justify-content: space-between;
  gap: 10px;
}

/* ========== section / head ========== */
.section {
  position: relative;
  padding: var(--section-space) 0;
}
.section-head {
  max-width: 760px;
}
.sec-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .12em;
  color: var(--brand-strong);
}
.sec-label::before {
  content: "";
  width: 18px;
  height: 2px;
  background: linear-gradient(90deg, var(--brand-strong), transparent);
  border-radius: 2px;
}
.section-head h2 {
  font-size: clamp(26px, 2.7vw, 36px);
  margin-top: 12px;
  color: var(--text-hi);
}
.section-head p {
  color: var(--text-mid);
  margin-top: 14px;
  font-size: 16px;
  line-height: 1.9;
}

/* ========== verify layout ========== */
.verify-section {
  background:
    linear-gradient(180deg, var(--bg-deep) 0%, var(--bg-base) 100%);
}
.verify-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 330px;
  gap: 48px;
  align-items: start;
}
.check-list {
  margin-top: 40px;
}
.check-item {
  display: grid;
  grid-template-columns: 84px 1fr;
  gap: 18px;
  padding: 28px 0 32px;
  border-bottom: 1px solid rgba(145, 195, 255, .08);
}
.check-item:last-child {
  border-bottom: 0;
}
.check-num {
  font-size: 30px;
  font-weight: 800;
  font-family: Arial, sans-serif;
  color: transparent;
  -webkit-text-stroke: 1px rgba(53, 208, 255, .72);
  line-height: 1;
  padding-top: 6px;
}
.check-body h3 {
  font-size: 21px;
  color: var(--text-hi);
  line-height: 1.45;
}
.check-body > p {
  margin-top: 10px;
  color: var(--text-mid);
  font-size: 16px;
  line-height: 1.95;
}
.tips {
  display: grid;
  gap: 8px;
  margin-top: 14px;
}
.tips li {
  position: relative;
  padding-left: 16px;
  color: var(--text-low);
  font-size: 14px;
  line-height: 1.7;
}
.tips li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .7em;
  width: 6px;
  height: 6px;
  border-radius: 2px;
  background: linear-gradient(135deg, var(--brand), var(--brand-strong));
}
.figure-frame {
  margin: 20px 0 20px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--glass-border);
  overflow: hidden;
  background: var(--bg-soft);
  box-shadow: var(--shadow-card);
}
.figure-frame img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  transition: transform .5s ease;
}
.figure-frame:hover img {
  transform: scale(1.02);
}
.figure-caption {
  padding: 12px 16px;
  font-size: 13px;
  color: var(--text-low);
  background: rgba(8, 18, 32, .82);
  border-top: 1px solid rgba(145, 195, 255, .08);
}
.figure-caption b {
  color: var(--text-mid);
  font-weight: 500;
}

/* ========== aside ========== */
.aside-card {
  position: sticky;
  top: 96px;
  border-radius: var(--radius-lg);
  padding: 26px;
  background:
    linear-gradient(180deg, rgba(17, 33, 55, .72), rgba(7, 17, 31, .58));
  border: 1px solid var(--glass-border-strong);
  box-shadow: var(--shadow-card), inset 0 1px 0 rgba(255, 255, 255, .07);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}
.aside-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--gold);
  border: 1px solid rgba(245, 181, 68, .3);
  padding: 4px 8px;
  border-radius: 999px;
  margin-bottom: 16px;
  background: rgba(245, 181, 68, .07);
}
.aside-card h3 {
  font-size: 19px;
  color: var(--text-hi);
}
.aside-desc {
  font-size: 14px;
  color: var(--text-mid);
  margin-top: 10px;
  line-height: 1.8;
}
.aside-list {
  margin-top: 18px;
  display: grid;
  gap: 10px;
}
.aside-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 11px 12px;
  border: 1px solid rgba(145, 195, 255, .08);
  border-radius: 10px;
  background: rgba(6, 14, 27, .36);
  font-size: 13px;
  color: var(--text-low);
}
.aside-list b {
  font-weight: 600;
  color: var(--text-hi);
  font-size: 13px;
}
.aside-list .good {
  color: var(--brand-strong);
  font-weight: 600;
}
.aside-hr {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(145, 195, 255, .2), transparent);
  margin: 22px 0;
  border: 0;
}
.aside-links {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}
.aside-link {
  padding: 11px 14px;
  border-radius: 11px;
  border: 1px solid rgba(145, 195, 255, .15);
  color: var(--text-mid);
  font-size: 14px;
  font-weight: 600;
  background: rgba(53, 208, 255, .05);
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: all .2s ease;
}
.aside-link span {
  color: var(--brand-strong);
}
.aside-link:hover {
  color: #fff;
  border-color: rgba(53, 208, 255, .4);
  background: rgba(53, 208, 255, .1);
  transform: translateX(-3px);
}
.aside-contact {
  margin-top: 20px;
  padding: 16px;
  border-radius: 14px;
  background: rgba(53, 208, 255, .07);
  border: 1px solid rgba(53, 208, 255, .16);
}
.aside-contact strong {
  display: block;
  font-size: 14px;
  color: var(--text-hi);
}
.aside-contact p {
  margin-top: 5px;
  font-size: 13px;
  color: var(--text-low);
}

/* ========== route section ========== */
.route-section {
  padding: var(--section-space) 0;
  background:
    linear-gradient(180deg, rgba(6, 14, 26, .98), rgba(8, 18, 34, .88)),
    url("/assets/images/backpic/back-2.png") center / cover no-repeat;
  border-top: 1px solid rgba(145, 195, 255, .08);
  border-bottom: 1px solid rgba(145, 195, 255, .08);
}
.route-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, .96fr);
  gap: 56px;
  align-items: center;
}
.route-media {
  position: relative;
}
.route-media .frame {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--glass-border-strong);
  box-shadow: var(--shadow-card);
  background: var(--bg-soft);
}
.route-media .frame img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}
.media-float {
  position: absolute;
  left: -18px;
  bottom: 28px;
  background: rgba(8, 20, 36, .9);
  border: 1px solid var(--glass-border-strong);
  border-radius: 14px;
  padding: 14px 18px;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  font-size: 13px;
  color: var(--text-mid);
}
.media-float b {
  display: block;
  color: #fff;
  font-size: 20px;
  line-height: 1.3;
}
.route-content .sec-label {
  margin-bottom: 8px;
}
.route-content h2 {
  font-size: clamp(26px, 2.7vw, 36px);
  color: var(--text-hi);
}
.route-content > p {
  margin-top: 16px;
  color: var(--text-mid);
  line-height: 1.9;
}
.route-list {
  display: grid;
  gap: 12px;
  margin-top: 26px;
}
.route-list li {
  display: flex;
  gap: 14px;
  padding: 16px 18px;
  border-radius: 14px;
  background: rgba(8, 20, 36, .54);
  border: 1px solid rgba(145, 195, 255, .12);
}
.route-icon {
  width: 32px;
  height: 32px;
  flex: 0 0 32px;
  border-radius: 9px;
  background: rgba(45, 140, 255, .15);
  color: var(--brand-strong);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 14px;
}
.route-list h4 {
  font-size: 16px;
  color: var(--text-hi);
}
.route-list p {
  margin-top: 4px;
  font-size: 14px;
  color: var(--text-low);
  line-height: 1.7;
}
.route-btn {
  margin-top: 26px;
}

/* ========== CTA band ========== */
.cta-band {
  padding: 64px 0;
}
.cta-panel {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  padding: 42px 46px;
  background:
    radial-gradient(500px 180px at 85% 0%, rgba(45, 140, 255, .2), transparent 70%),
    linear-gradient(120deg, rgba(17, 33, 55, .78), rgba(8, 20, 38, .65));
  border: 1px solid var(--glass-border-strong);
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 28px;
}
.cta-panel h2 {
  font-size: clamp(24px, 2.4vw, 32px);
  color: var(--text-hi);
}
.cta-panel p {
  margin-top: 10px;
  color: var(--text-mid);
  font-size: 15px;
  line-height: 1.9;
}
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  flex-shrink: 0;
}

/* ========== FAQ ========== */
.faq-section {
  padding: var(--section-space) 0;
  background: var(--bg-base);
}
.faq-wrap {
  max-width: 840px;
  margin: 42px auto 0;
  display: grid;
  gap: 14px;
}
.faq-item {
  background: linear-gradient(135deg, rgba(17, 33, 55, .55), rgba(8, 17, 31, .55));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: border-color .25s ease, background .25s ease;
}
.faq-item[open] {
  border-color: rgba(53, 208, 255, .4);
  background: linear-gradient(135deg, rgba(20, 37, 62, .55), rgba(9, 22, 41, .55));
}
.faq-item summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-hi);
  user-select: none;
}
.faq-item summary::-webkit-details-marker {
  display: none;
}
.faq-item summary::after {
  content: "+";
  width: 28px;
  height: 28px;
  flex: 0 0 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  font-size: 20px;
  font-weight: 400;
  background: rgba(53, 208, 255, .1);
  border: 1px solid rgba(53, 208, 255, .18);
  color: var(--brand-strong);
  transition: transform .25s ease, background .25s ease;
}
.faq-item[open] summary::after {
  content: "−";
  transform: rotate(180deg);
  background: rgba(53, 208, 255, .2);
}
.faq-answer {
  padding: 0 24px 22px;
  color: var(--text-mid);
  font-size: 15px;
  line-height: 1.95;
}
.faq-answer p + p {
  margin-top: 12px;
}

/* ========== contact ========== */
.contact-section {
  padding: 0 0 84px;
}
.contact-card {
  border-radius: var(--radius-lg);
  padding: 46px;
  background:
    linear-gradient(135deg, rgba(17, 33, 55, .72), rgba(6, 16, 31, .72));
  border: 1px solid var(--glass-border-strong);
  box-shadow: var(--shadow-card);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 28px;
  align-items: center;
  position: relative;
}
.contact-card h2 {
  font-size: clamp(24px, 2.5vw, 32px);
  color: var(--text-hi);
}
.contact-card p {
  color: var(--text-mid);
  margin-top: 12px;
  max-width: 690px;
  line-height: 1.9;
}
.contact-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 220px;
}
.contact-mail {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
  font-size: 18px;
  font-weight: 600;
  color: var(--brand-strong);
}
.contact-mail:hover {
  text-decoration: underline;
}

/* ========== footer ========== */
.site-footer {
  background: #04101e;
  border-top: 1px solid rgba(145, 195, 255, .1);
  padding-top: 64px;
}
.footer-top {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(170px, .72fr) minmax(170px, .72fr) minmax(190px, .9fr);
  gap: 36px;
  padding-bottom: 44px;
}
.footer-brand .brand {
  color: var(--text-hi);
}
.footer-desc {
  margin-top: 16px;
  color: var(--text-low);
  font-size: 14px;
  line-height: 1.9;
  max-width: 360px;
}
.footer-col h5 {
  font-size: 16px;
  color: var(--text-hi);
  margin-bottom: 18px;
  letter-spacing: .04em;
}
.footer-col ul {
  display: grid;
  gap: 10px;
}
.footer-col ul a {
  color: var(--text-mid);
  font-size: 14px;
  transition: color .2s, padding-left .2s;
}
.footer-col ul a:hover {
  color: #fff;
  padding-left: 4px;
}
.footer-news {
  background: rgba(145, 195, 255, .06);
  border: 1px solid rgba(145, 195, 255, .1);
  border-radius: 14px;
  padding: 16px;
  font-size: 14px;
  color: var(--text-low);
  line-height: 1.8;
}
.footer-news strong {
  display: block;
  color: var(--text-hi);
  font-size: 14px;
}
.footer-bottom {
  border-top: 1px solid rgba(145, 195, 255, .08);
  padding: 22px 0;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: center;
  flex-wrap: wrap;
}
.footer-copy {
  color: var(--text-low);
  font-size: 13px;
}
.footer-domain {
  color: rgba(159, 178, 201, .7);
  font-size: 13px;
  letter-spacing: .06em;
}

/* ========== responsive ========== */
@media (max-width: 1080px) {
  .verify-layout {
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 32px;
  }
  .route-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .route-media {
    max-width: 660px;
  }
  .cta-panel {
    flex-direction: column;
    align-items: flex-start;
  }
  .footer-top {
    grid-template-columns: 1.4fr .8fr .8fr;
    gap: 28px;
  }
  .footer-col:nth-child(4) {
    grid-column: 1 / -1;
  }
}
@media (max-width: 900px) {
  .main-nav,
  .header-cta {
    display: none;
  }
  .nav-toggle {
    display: inline-flex;
    margin-left: auto;
  }
  .mobile-tabbar {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 950;
    background: rgba(6, 14, 26, .88);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-top: 1px solid rgba(145, 195, 255, .14);
    padding-bottom: env(safe-area-inset-bottom);
  }
  .mob-tab {
    height: 64px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    color: var(--text-low);
    font-size: 11px;
    letter-spacing: .02em;
    transition: color .2s ease, background .2s ease;
  }
  .mob-tab svg {
    width: 20px;
    height: 20px;
    display: block;
  }
  .mob-tab.is-active {
    color: var(--brand-strong);
    background: radial-gradient(60px 20px at 50% 5%, rgba(53, 208, 255, .2), transparent 70%);
  }
  .mob-tab:hover {
    color: #fff;
  }
  body {
    padding-bottom: 74px;
  }
  .site-footer {
    padding-bottom: 70px;
  }
  .cat-banner {
    padding: 54px 0 48px;
  }
  .banner-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .banner-sub {
    max-width: 100%;
  }
  .verify-layout {
    grid-template-columns: 1fr;
  }
  .verify-layout .aside-card {
    position: relative;
    top: auto;
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .footer-brand {
    grid-column: 1 / -1;
  }
  .footer-copy,
  .footer-domain {
    width: 100%;
  }
}
@media (max-width: 640px) {
  .container {
    width: min(100% - 32px, var(--max));
  }
  .section {
    --section-space: 60px;
  }
  .header-inner {
    height: 64px;
  }
  .brand-mark {
    width: 36px;
    height: 36px;
    border-radius: 11px;
    font-size: 15px;
  }
  .brand-name {
    font-size: 16px;
  }
  .cat-banner {
    padding: 44px 0 40px;
  }
  .banner-actions .btn {
    width: calc(50% - 7px);
    padding: 12px 10px;
  }
  .banner-actions {
    gap: 12px;
  }
  .pulse-panel {
    padding: 20px;
  }
  .check-item {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .check-num {
    font-size: 26px;
  }
  .section-head h2 {
    font-size: 25px;
  }
  .cta-panel,
  .contact-card {
    padding: 28px 22px;
  }
  .contact-card {
    grid-template-columns: 1fr;
  }
  .contact-actions {
    min-width: 0;
    flex-direction: row;
    flex-wrap: wrap;
  }
  .route-media .frame img {
    aspect-ratio: 16 / 10;
  }
  .media-float {
    left: 12px;
    bottom: 14px;
    padding: 10px 14px;
  }
  .faq-item summary {
    font-size: 15px;
    padding: 17px 18px;
  }
}

/* roulang page: category3 */
:root {
  --bg-base: #07111F;
  --bg-deep: #04101E;
  --glass-bg: rgba(17, 33, 55, 0.55);
  --glass-strong: rgba(20, 38, 64, 0.72);
  --glass-border: rgba(145, 195, 255, 0.16);
  --glass-border-strong: rgba(145, 195, 255, 0.32);
  --brand: #2D8CFF;
  --brand-strong: #35D0FF;
  --gold: #F5B544;
  --text-hi: #F2F7FF;
  --text-mid: #9FB2C9;
  --text-low: #6A7D94;
  --glow-primary: rgba(45, 140, 255, 0.45);
  --glow-strong: rgba(53, 208, 255, 0.38);
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 18px;
  --shadow-card: 0 20px 50px rgba(0, 10, 25, 0.45);
  --shadow-glow: 0 16px 44px rgba(45, 140, 255, 0.35);
  --font-stack: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-stack);
  background-color: var(--bg-base);
  background-image: radial-gradient(1000px 440px at 88% -8%, rgba(45, 140, 255, 0.26), transparent 60%), radial-gradient(800px 520px at -10% 18%, rgba(20, 64, 116, 0.32), transparent 58%);
  color: var(--text-hi);
  line-height: 1.7;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: linear-gradient(rgba(145, 195, 255, 0.02) 1px, transparent 1px), linear-gradient(90deg, rgba(145, 195, 255, 0.018) 1px, transparent 1px);
  background-size: 44px 44px;
  pointer-events: none;
  z-index: 0;
}
a {
  color: inherit;
  text-decoration: none;
}
img {
  display: block;
  max-width: 100%;
}
button,
input,
select,
textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}
.container {
  position: relative;
  z-index: 1;
  width: min(1180px, 100% - 48px);
  margin-inline: auto;
}

/* 按钮体系 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.25s ease;
  text-align: center;
}
.btn-primary {
  background: linear-gradient(100deg, #1f7aff 0%, #35b9ff 100%);
  color: #fff;
  box-shadow: 0 10px 30px var(--glow-primary), inset 0 1px 0 rgba(255, 255, 255, 0.22);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 40px var(--glow-strong), inset 0 1px 0 rgba(255, 255, 255, 0.28);
  color: #fff;
}
.btn-primary:active {
  transform: translateY(1px);
  box-shadow: 0 6px 18px rgba(53, 208, 255, 0.3);
}
.btn-ghost {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(145, 195, 255, 0.22);
  color: var(--text-hi);
}
.btn-ghost:hover {
  border-color: rgba(145, 195, 255, 0.4);
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}
.btn-ghost:active {
  background: rgba(255, 255, 255, 0.12);
}
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, summary:focus-visible {
  outline: 2px solid var(--brand-strong);
  outline-offset: 3px;
}

/* 顶部导航 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: 72px;
  background: rgba(7, 17, 31, 0.72);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(145, 195, 255, 0.12);
}
.site-header::after {
  content: "";
  position: absolute;
  inset: 0 0 -1px;
  pointer-events: none;
  background: linear-gradient(90deg, transparent, rgba(53, 208, 255, 0.12), transparent);
  opacity: 0.6;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 100%;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.brand-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(140deg, rgba(45, 140, 255, 0.25), rgba(53, 208, 255, 0.08));
  color: #fff;
  font-weight: 800;
  font-size: 16px;
  letter-spacing: 0.4px;
  border: 1px solid rgba(53, 208, 255, 0.32);
  box-shadow: 0 8px 22px rgba(45, 140, 255, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.12);
}
.brand-name {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
  font-size: 19px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.5px;
}
.brand-name small {
  margin-top: 4px;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 3px;
  color: var(--text-mid);
  text-transform: uppercase;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 30px;
}
.nav-link {
  position: relative;
  color: var(--text-mid);
  font-size: 15px;
  font-weight: 500;
  padding: 6px 2px;
  transition: color 0.25s ease;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 2px;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--brand), var(--brand-strong));
  box-shadow: 0 0 12px rgba(53, 208, 255, 0.6);
  opacity: 0;
  transform: scaleX(0.4);
  transition: all 0.25s ease;
}
.nav-link:hover {
  color: #fff;
}
.nav-link.is-active {
  color: #fff;
}
.nav-link.is-active::after,
.nav-link:hover::after {
  opacity: 1;
  transform: scaleX(1);
}
.header-cta {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}
.btn-header {
  display: inline-block;
  padding: 0 20px;
  min-height: 38px;
  line-height: 38px;
  text-align: center;
  border-radius: 40px;
  background: rgba(53, 208, 255, 0.1);
  border: 1px solid rgba(53, 208, 255, 0.3);
  color: var(--brand-strong);
  font-size: 14px;
  font-weight: 600;
  transition: all 0.25s ease;
  white-space: nowrap;
}
.btn-header:hover {
  background: rgba(53, 208, 255, 0.2);
  box-shadow: 0 0 22px rgba(53, 208, 255, 0.18);
  color: #fff;
  transform: translateY(-1px);
}
.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(145, 195, 255, 0.16);
  cursor: pointer;
  color: #fff;
}
.nav-toggle:hover {
  border-color: rgba(53, 208, 255, 0.5);
}
.mobile-drawer {
  display: none;
}

/* 底部移动标签导航 */
.mobile-tabs {
  display: none;
}

/* 页面主视觉 */
.page-hero {
  position: relative;
  padding: 86px 0 78px;
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7, 17, 31, 0.58), rgba(7, 17, 31, 0.72) 55%, var(--bg-base) 100%), url("/assets/images/backpic/back-1.webp") center / cover no-repeat;
  opacity: 0.56;
  z-index: 0;
}
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 26px;
  font-size: 13px;
  color: var(--text-low);
}
.breadcrumb a {
  color: var(--text-mid);
  transition: color 0.2s;
}
.breadcrumb a:hover {
  color: var(--brand-strong);
}
.breadcrumb span {
  color: var(--text-low);
}
.category-hero-card {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 44px;
  align-items: center;
  padding: 44px;
  border-radius: 22px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-card), inset 0 1px 0 rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(14px);
}
.hero-flag {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 5px 13px;
  border-radius: 40px;
  background: rgba(53, 208, 255, 0.1);
  border: 1px solid rgba(53, 208, 255, 0.24);
  color: var(--brand-strong);
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 20px;
}
.hero-flag i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand-strong);
  box-shadow: 0 0 10px var(--brand-strong);
}
.category-hero-left h1 {
  font-size: clamp(30px, 4.2vw, 48px);
  line-height: 1.28;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.5px;
}
.category-hero-left h1 .gradient-text {
  background: linear-gradient(120deg, #63b6ff, #5ce7ff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.category-hero-left .lead {
  margin-top: 18px;
  font-size: 16px;
  line-height: 1.9;
  color: var(--text-mid);
  max-width: 560px;
}
.category-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}
.category-hero-meta {
  display: grid;
  gap: 14px;
}
.hero-meta-card {
  padding: 18px;
  border-radius: var(--radius-md);
  background: rgba(7, 17, 31, 0.42);
  border: 1px solid rgba(145, 195, 255, 0.13);
}
.hero-meta-card strong {
  display: block;
  font-size: 14px;
  color: #fff;
  margin-bottom: 8px;
}
.hero-meta-card p,
.hero-meta-card li {
  font-size: 13px;
  line-height: 1.8;
  color: var(--text-mid);
}
.hero-meta-card ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.hero-meta-card li {
  position: relative;
  padding-left: 20px;
}
.hero-meta-card li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 11px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand-strong);
  box-shadow: 0 0 8px rgba(53, 208, 255, 0.5);
}

/* 区块标题 */
.section-head {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 40px;
}
.section-head .section-label {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 600;
  color: var(--brand-strong);
  letter-spacing: 1px;
}
.section-label::before {
  content: "";
  width: 20px;
  height: 1px;
  background: linear-gradient(90deg, var(--brand-strong), transparent);
}
.section-head h2 {
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1.35;
  color: #fff;
  font-weight: 700;
}
.section-head p {
  color: var(--text-mid);
  font-size: 15px;
  max-width: 680px;
  line-height: 1.9;
}

/* 分类主内容与吸顶辅助栏 */
.qa-area {
  padding: 36px 0 78px;
}
.qa-grid {
  display: grid;
  grid-template-columns: 1.82fr 1fr;
  gap: 40px;
  align-items: start;
}
.qa-main {
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.alt-card {
  display: grid;
  grid-template-columns: 1fr 1.08fr;
  gap: 26px;
  padding: 22px;
  align-items: center;
  border-radius: 20px;
  background: var(--glass-bg);
  box-shadow: var(--shadow-card), inset 0 1px 0 rgba(255, 255, 255, 0.06);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(12px);
  overflow: hidden;
  transition: border-color 0.3s ease, transform 0.3s ease;
}
.alt-card:hover {
  border-color: rgba(53, 208, 255, 0.35);
  transform: translateY(-3px);
}
.alt-card.reversed .alt-media {
  order: 2;
}
.alt-media {
  position: relative;
  border-radius: 14px;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: linear-gradient(150deg, #082038, #0b1a30);
  border: 1px solid rgba(145, 195, 255, 0.12);
}
.alt-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.alt-card:hover .alt-media img {
  transform: scale(1.04);
}
.alt-media .media-tag {
  position: absolute;
  left: 12px;
  top: 12px;
  padding: 4px 12px;
  border-radius: 40px;
  background: rgba(7, 17, 31, 0.7);
  border: 1px solid rgba(53, 208, 255, 0.3);
  color: var(--brand-strong);
  font-size: 12px;
  backdrop-filter: blur(8px);
}
.alt-content {
  padding: 6px 6px 6px 0;
}
.alt-content.rev-pad {
  padding: 6px 0 6px 6px;
}
.alt-num {
  display: inline-flex;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.5px;
  color: rgba(53, 208, 255, 0.85);
  background: rgba(53, 208, 255, 0.09);
  border: 1px solid rgba(53, 208, 255, 0.2);
  border-radius: 40px;
  padding: 3px 10px;
  margin-bottom: 12px;
}
.alt-content h2 {
  font-size: 20px;
  line-height: 1.5;
  color: #fff;
  margin-bottom: 10px;
  font-weight: 700;
}
.alt-content p {
  color: var(--text-mid);
  font-size: 14px;
  line-height: 1.85;
  margin-bottom: 14px;
}
.alt-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.alt-list li {
  position: relative;
  padding-left: 22px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-mid);
}
.alt-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--brand-strong);
  font-weight: 700;
}

/* 吸顶辅助栏 */
.qa-aside {
  position: sticky;
  top: 92px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.aside-card {
  padding: 20px;
  border-radius: var(--radius-lg);
  background: var(--glass-bg);
  box-shadow: var(--shadow-card), inset 0 1px 0 rgba(255, 255, 255, 0.06);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(12px);
}
.aside-card h3 {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 14px;
}
.aside-contact-card {
  text-align: left;
}
.aside-contact-card .contact-row {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 6px;
}
.aside-contact-card .contact-num {
  font-size: 18px;
  font-weight: 800;
  color: var(--brand-strong);
}
.aside-contact-card span {
  color: var(--text-low);
  font-size: 13px;
}
.aside-list {
  list-style: none;
}
.aside-list li + li {
  border-top: 1px solid rgba(145, 195, 255, 0.1);
}
.aside-list a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 2px;
  color: var(--text-mid);
  font-size: 14px;
  transition: color 0.2s, transform 0.2s;
}
.aside-list a:hover {
  color: #fff;
  transform: translateX(3px);
}
.aside-list a::before {
  content: "";
  width: 5px;
  height: 20px;
  border-radius: 4px;
  background: linear-gradient(180deg, var(--brand), var(--brand-strong));
  opacity: 0.55;
}
.aside-cta {
  background: linear-gradient(150deg, rgba(45, 140, 255, 0.18), rgba(53, 208, 255, 0.05));
  border-color: rgba(53, 208, 255, 0.25);
}
.aside-cta p {
  font-size: 14px;
  color: var(--text-mid);
  line-height: 1.85;
  margin-bottom: 18px;
}
.aside-cta .btn {
  width: 100%;
}

/* 服务流程 */
.process-area {
  padding: 76px 0;
  position: relative;
  border-top: 1px solid rgba(145, 195, 255, 0.1);
  background: linear-gradient(180deg, rgba(10, 24, 40, 0.5), transparent);
}
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.process-item {
  position: relative;
  padding: 24px 20px 22px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid rgba(145, 195, 255, 0.12);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}
.process-step {
  display: inline-flex;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: rgba(45, 140, 255, 0.12);
  color: var(--brand-strong);
  font-size: 15px;
  font-weight: 800;
  border: 1px solid rgba(53, 208, 255, 0.25);
  margin-bottom: 12px;
}
.process-item h3 {
  font-size: 17px;
  color: #fff;
  margin-bottom: 8px;
}
.process-item p {
  color: var(--text-mid);
  font-size: 13px;
  line-height: 1.8;
}

/* FAQ手风琴 */
.faq-area {
  padding: 76px 0;
}
.faq-wrap {
  max-width: 860px;
  margin-inline: auto;
}
.faq-item {
  border-radius: var(--radius-md);
  background: var(--glass-bg);
  border: 1px solid rgba(145, 195, 255, 0.14);
  margin-bottom: 12px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
  overflow: hidden;
  transition: border-color 0.25s ease;
}
.faq-item[open] {
  border-color: rgba(53, 208, 255, 0.35);
  background: rgba(20, 38, 64, 0.7);
}
.faq-item summary {
  position: relative;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 20px 18px 44px;
  cursor: pointer;
  list-style: none;
  color: #fff;
  font-weight: 600;
  font-size: 15px;
  line-height: 1.5;
  transition: color 0.2s;
}
.faq-item summary::-webkit-details-marker {
  display: none;
}
.faq-item summary:hover {
  color: var(--brand-strong);
}
.faq-icon {
  position: absolute;
  left: 16px;
  top: 19px;
  width: 16px;
  height: 16px;
  transition: transform 0.3s ease;
}
.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  inset: 0;
  margin: auto;
  background: var(--brand-strong);
  border-radius: 2px;
  transition: opacity 0.2s;
}
.faq-icon::before {
  width: 16px;
  height: 2px;
}
.faq-icon::after {
  width: 2px;
  height: 16px;
}
.faq-item[open] summary .faq-icon {
  transform: rotate(45deg);
}
.faq-answer {
  padding: 0 24px 22px 44px;
  color: var(--text-mid);
  font-size: 15px;
  line-height: 1.9;
}
.faq-answer a {
  color: var(--brand-strong);
  border-bottom: 1px solid rgba(53, 208, 255, 0.2);
}
.faq-answer a:hover {
  color: #fff;
  border-color: #fff;
}

/* CTA与咨询 */
.contact-area {
  padding: 70px 0 80px;
  position: relative;
}
.cta-panel {
  position: relative;
  overflow: hidden;
  border-radius: 22px;
  background: linear-gradient(145deg, rgba(17, 33, 55, 0.85), rgba(7, 17, 31, 0.6));
  border: 1px solid rgba(145, 195, 255, 0.18);
  box-shadow: var(--shadow-card), inset 0 1px 0 rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(14px);
  padding: 42px;
}
.cta-panel::before {
  content: "";
  position: absolute;
  width: 360px;
  height: 360px;
  right: -80px;
  top: -120px;
  background: radial-gradient(circle, rgba(45, 140, 255, 0.2), transparent 68%);
  pointer-events: none;
}
.contact-grid {
  display: grid;
  grid-template-columns: 1.08fr 1fr;
  gap: 38px;
  align-items: start;
  position: relative;
  z-index: 1;
}
.contact-form-head h2 {
  font-size: clamp(23px, 3vw, 31px);
  color: #fff;
  margin-bottom: 8px;
}
.contact-form-head p {
  color: var(--text-mid);
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 26px;
}
.form-row {
  margin-bottom: 16px;
}
.form-row label {
  display: inline-block;
  color: #cfdcf0;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 8px;
}
.form-control {
  width: 100%;
  min-height: 46px;
  padding: 11px 14px;
  border-radius: 10px;
  background: rgba(7, 17, 31, 0.45);
  border: 1px solid rgba(145, 195, 255, 0.18);
  color: #fff;
  font-size: 14px;
  transition: border-color 0.25s, box-shadow 0.25s;
}
.form-control::placeholder {
  color: var(--text-low);
}
.form-control:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(45, 140, 255, 0.14);
}
select.form-control {
  appearance: none;
  -webkit-appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--brand-strong) 50%), linear-gradient(135deg, var(--brand-strong) 50%, transparent 50%);
  background-position: calc(100% - 20px) 20px, calc(100% - 15px) 20px;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  cursor: pointer;
}
textarea.form-control {
  resize: vertical;
  min-height: 100px;
}
.contact-side {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.contact-info {
  border-radius: var(--radius-md);
  padding: 20px;
  background: rgba(7, 17, 31, 0.45);
  border: 1px solid rgba(145, 195, 255, 0.15);
}
.contact-info h3 {
  font-size: 15px;
  color: #fff;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.contact-info h3::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--brand-strong);
  box-shadow: 0 0 8px var(--brand-strong);
}
.contact-info p {
  color: var(--text-mid);
  font-size: 14px;
  line-height: 1.9;
}
.contact-info a {
  color: var(--brand-strong);
  font-weight: 600;
}
.contact-info a:hover {
  color: #fff;
}
.contact-note {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 16px;
  border-radius: var(--radius-md);
  background: rgba(53, 208, 255, 0.06);
  border: 1px dashed rgba(53, 208, 255, 0.3);
  font-size: 13px;
  line-height: 1.8;
  color: var(--text-mid);
}

/* 页脚 */
.site-footer {
  position: relative;
  z-index: 1;
  background: var(--bg-deep);
  border-top: 1px solid rgba(145, 195, 255, 0.12);
  padding: 64px 0 30px;
}
.footer-top {
  display: grid;
  grid-template-columns: 2.2fr 1fr 1fr 1.3fr;
  gap: 38px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(145, 195, 255, 0.1);
}
.footer-brand .brand-name {
  color: #fff;
}
.footer-desc {
  max-width: 320px;
  margin-top: 14px;
  color: var(--text-low);
  font-size: 13px;
  line-height: 1.9;
}
.footer-col h5 {
  color: #fff;
  font-size: 15px;
  margin-bottom: 14px;
  font-weight: 600;
}
.footer-col ul,
.footer-col .footer-news {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  color: var(--text-mid);
  font-size: 13px;
  line-height: 1.8;
}
.footer-col ul li a {
  color: var(--text-mid);
  transition: color 0.2s, transform 0.2s;
  display: inline-block;
}
.footer-col ul li a:hover {
  color: #fff;
  transform: translateX(3px);
}
.footer-news strong {
  color: #d6e8f8;
  font-weight: 600;
}
.footer-col ul li {
  margin-top: 4px;
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  padding-top: 20px;
  color: var(--text-low);
  font-size: 13px;
}
.footer-domain {
  letter-spacing: 0.3px;
  color: #668398;
}
.mobile-tabbar-space {
  display: none;
}

/* 媒体查询 */
@media (max-width: 1024px) {
  .container {
    width: min(100% - 32px, 1180px);
  }
  .qa-grid {
    grid-template-columns: 1fr;
  }
  .qa-aside {
    position: static;
    flex-direction: column;
  }
  .category-hero-card {
    grid-template-columns: 1fr;
    gap: 26px;
  }
}
@media (max-width: 767px) {
  body {
    padding-bottom: 72px;
  }
  .site-header {
    height: 62px;
  }
  .header-cta,
  .main-nav {
    display: none;
  }
  .nav-toggle {
    display: flex;
  }
  .mobile-drawer {
    position: fixed;
    left: 12px;
    right: 12px;
    top: 70px;
    z-index: 60;
    display: grid;
    gap: 6px;
    padding: 12px;
    background: rgba(8, 18, 32, 0.95);
    border: 1px solid rgba(145, 195, 255, 0.2);
    border-radius: var(--radius-md);
    backdrop-filter: blur(18px);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.28s ease;
  }
  .mobile-drawer.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
  .mobile-drawer a {
    display: block;
    padding: 13px 14px;
    border-radius: 10px;
    color: var(--text-mid);
    font-size: 15px;
    font-weight: 500;
    background: rgba(255, 255, 255, 0.03);
  }
  .mobile-drawer a:hover {
    color: #fff;
    background: rgba(53, 208, 255, 0.08);
  }
  .mobile-drawer a.is-active {
    color: var(--brand-strong);
  }
  .page-hero {
    padding: 54px 0 56px;
  }
  .category-hero-card {
    padding: 28px 20px;
    gap: 18px;
  }
  .category-hero-left h1 {
    font-size: 31px;
  }
  .hero-meta-card li {
    font-size: 14px;
  }
  .qa-area {
    padding: 20px 0 50px;
  }
  .alt-card {
    grid-template-columns: 1fr;
    padding: 16px;
  }
  .alt-card.reversed .alt-media {
    order: 0;
  }
  .qa-aside {
    display: none;
  }
  .process-grid {
    grid-template-columns: 1fr 1fr;
  }
  .cta-panel {
    padding: 24px 18px;
  }
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 26px;
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }
  .mobile-tabs {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 80;
    height: calc(64px + env(safe-area-inset-bottom));
    padding-bottom: env(safe-area-inset-bottom);
    background: rgba(7, 17, 31, 0.84);
    backdrop-filter: blur(18px);
    border-top: 1px solid rgba(145, 195, 255, 0.16);
    box-shadow: 0 -10px 30px rgba(0, 10, 25, 0.35);
  }
  .tab-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    color: var(--text-low);
    font-size: 11px;
    font-weight: 500;
    transition: color 0.2s;
    min-height: 64px;
  }
  .tab-item svg {
    width: 20px;
    height: 20px;
    stroke-width: 1.8;
    fill: none;
    stroke: currentColor;
  }
  .tab-item span {
    line-height: 1;
  }
  .tab-item.is-active {
    color: var(--brand-strong);
    position: relative;
  }
  .tab-item.is-active::before {
    content: "";
    position: absolute;
    top: -1px;
    width: 48px;
    height: 2px;
    border-radius: 4px;
    background: var(--brand-strong);
    box-shadow: 0 0 14px rgba(53, 208, 255, 0.5);
  }
  .mobile-tabbar-space {
    display: block;
    height: 20px;
  }
  .footer-bottom {
    flex-direction: column;
    justify-content: center;
    text-align: center;
    padding-top: 18px;
  }
}
@media (max-width: 520px) {
  .process-grid {
    grid-template-columns: 1fr;
  }
  .category-hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .alt-content h2 {
    font-size: 18px;
  }
  .section-head p {
    font-size: 14px;
  }
  .footer-top {
    grid-template-columns: 1fr;
  }
  .contact-side {
    padding-top: 0;
  }
  .site-footer {
    padding: 44px 0 20px;
  }
  .btn {
    width: 100%;
  }
}

/* roulang page: category2 */
:root {
  --bg-base: #07111F;
  --bg-deep: #04101E;
  --bg-soft: #0B1A2E;
  --glass-bg: rgba(17, 33, 55, 0.55);
  --glass-strong: rgba(21, 42, 68, 0.82);
  --glass-border: rgba(145, 195, 255, 0.16);
  --brand: #2D8CFF;
  --brand-strong: #35D0FF;
  --gold: #F5B544;
  --text-hi: #F2F7FF;
  --text-mid: #9FB2C9;
  --text-low: #6A7D94;
  --glow-primary: 0 0 24px rgba(45, 140, 255, 0.45);
  --glow-soft: 0 0 18px rgba(53, 208, 255, 0.20);
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --shadow-card: 0 20px 50px rgba(0, 10, 25, 0.45);
  --font-main: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-main);
  background:
    radial-gradient(1000px 520px at 92% -6%, rgba(45, 140, 255, 0.16), transparent 60%),
    radial-gradient(780px 460px at -8% 42%, rgba(53, 208, 255, 0.08), transparent 55%),
    var(--bg-base);
  color: var(--text-mid);
  line-height: 1.75;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
body::selection {
  background: rgba(45, 140, 255, 0.3);
  color: #fff;
}
a {
  color: inherit;
  text-decoration: none;
}
img {
  display: block;
  max-width: 100%;
}
ul,
ol {
  list-style: none;
}
button,
input,
select,
textarea {
  font: inherit;
}
summary {
  list-style: none;
}
summary::-webkit-details-marker {
  display: none;
}
a:focus-visible,
button:focus-visible,
summary:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid rgba(53, 208, 255, 0.8);
  outline-offset: 3px;
  border-radius: 8px;
}
.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(7, 17, 31, 0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(145, 195, 255, 0.10);
}
.header-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  height: 72px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  line-height: 1.2;
}
.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #0e2038, #0a1730);
  border: 1px solid rgba(53, 208, 255, 0.5);
  box-shadow: 0 0 18px rgba(45, 140, 255, 0.25);
  color: #fff;
  font-size: 16px;
  font-weight: 800;
  letter-spacing: -0.02em;
}
.brand-name {
  color: var(--text-hi);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.02em;
}
.brand-name small {
  display: block;
  margin-top: 2px;
  color: var(--text-low);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.16em;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
}
.header-cta {
  margin-left: 14px;
}
.btn-header {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  padding: 8px 18px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--brand), var(--brand-strong));
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  box-shadow: 0 8px 20px rgba(45, 140, 255, 0.35);
  transition: transform 0.25s ease, box-shadow 0.25s ease, filter 0.25s ease;
}
.btn-header:hover {
  transform: translateY(-2px);
  box-shadow: var(--glow-primary);
}
.btn-header:active {
  transform: translateY(0);
}
.nav-link {
  display: inline-flex;
  align-items: center;
  position: relative;
  padding: 9px 14px;
  border-radius: 999px;
  color: #b8cadf;
  font-size: 15px;
  font-weight: 500;
  transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}
.nav-link:hover {
  color: #fff;
  background: rgba(45, 140, 255, 0.16);
  box-shadow: 0 0 0 1px rgba(53, 208, 255, 0.28);
}
.nav-link.is-active {
  color: #fff;
  font-weight: 600;
  background: rgba(45, 140, 255, 0.18);
}
.nav-link.is-active::after {
  content: "";
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 2px;
  height: 2px;
  border-radius: 20px;
  background: linear-gradient(90deg, var(--brand), var(--brand-strong));
  opacity: 0.9;
}
.mobile-menu {
  display: none;
  margin-left: auto;
}
.nav-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  border: 1px solid rgba(145, 195, 255, 0.18);
  background: rgba(15, 30, 50, 0.7);
  color: var(--text-hi);
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease;
}
.nav-toggle:hover {
  border-color: rgba(53, 208, 255, 0.5);
  background: rgba(45, 140, 255, 0.16);
}
.drawer {
  position: fixed;
  right: 18px;
  top: 82px;
  width: min(280px, calc(100vw - 40px));
  background: rgba(7, 17, 31, 0.94);
  border: 1px solid var(--glass-border);
  border-radius: 18px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--shadow-card);
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  z-index: 90;
}
.drawer a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  border-radius: 12px;
  color: #c8d7e8;
  font-size: 15px;
  transition: background 0.2s ease, color 0.2s ease;
}
.drawer a:hover,
.drawer a.is-active {
  color: #fff;
  background: rgba(45, 140, 255, 0.18);
}
.drawer .drawer-cta {
  margin-top: 8px;
  justify-content: center;
  background: linear-gradient(135deg, var(--brand), var(--brand-strong));
  color: #fff;
  font-weight: 600;
}
.drawer .drawer-cta:hover {
  box-shadow: var(--glow-primary);
  background: linear-gradient(135deg, #3e9cff, #45d7fb);
}
.bottom-tab {
  display: none;
}
.page-hero {
  position: relative;
  padding: 76px 0 62px;
  border-bottom: 1px solid rgba(145, 195, 255, 0.12);
  background:
    radial-gradient(720px 320px at 12% 0%, rgba(45, 140, 255, 0.26), transparent 60%),
    linear-gradient(90deg, rgba(7, 17, 31, 0.97) 0%, rgba(7, 17, 31, 0.82) 55%, rgba(9, 20, 36, 0.7) 100%),
    url('/assets/images/backpic/back-2.png') no-repeat center / cover;
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(145, 195, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(145, 195, 255, 0.04) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at 20% 30%, #000 20%, transparent 75%);
  pointer-events: none;
}
.page-hero .container {
  position: relative;
  z-index: 2;
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.16fr) minmax(0, 0.84fr);
  gap: 52px;
  align-items: center;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(45, 140, 255, 0.12);
  border: 1px solid rgba(53, 208, 255, 0.25);
  color: #a8d9ff;
  font-size: 13px;
  font-weight: 500;
}
.hero-eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand-strong);
  box-shadow: 0 0 10px var(--brand-strong);
}
.hero-title {
  margin: 20px 0 16px;
  font-size: 46px;
  line-height: 1.22;
  font-weight: 700;
  color: var(--text-hi);
  letter-spacing: -0.02em;
}
.hero-title .hl {
  background: linear-gradient(90deg, #6bbafc, #61e0ff);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 0 32px rgba(53, 208, 255, 0.22);
}
.hero-summary {
  max-width: 560px;
  color: #b7c9df;
  font-size: 16px;
  line-height: 1.85;
}
.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 11px 24px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  transition: transform 0.22s ease, box-shadow 0.22s ease, background 0.22s ease, border-color 0.22s ease;
}
.btn-lg {
  min-height: 52px;
  padding: 14px 28px;
  font-size: 16px;
}
.btn-primary {
  background: linear-gradient(135deg, var(--brand), var(--brand-strong));
  color: #fff;
  box-shadow: 0 12px 28px rgba(45, 140, 255, 0.34);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 38px rgba(53, 208, 255, 0.42);
}
.btn-primary:active {
  transform: translateY(0);
}
.btn-ghost {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(145, 195, 255, 0.28);
  color: var(--text-hi);
}
.btn-ghost:hover {
  border-color: rgba(53, 208, 255, 0.68);
  background: rgba(53, 208, 255, 0.08);
  box-shadow: var(--glow-soft);
}
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 30px;
  margin-top: 30px;
  padding-top: 22px;
  border-top: 1px solid rgba(145, 195, 255, 0.12);
}
.hero-meta li {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--text-mid);
  font-size: 14px;
}
.hero-meta strong {
  color: var(--text-hi);
  font-size: 19px;
  font-weight: 700;
}
.hero-aside {
  position: relative;
}
.hero-panel {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: var(--shadow-card);
  padding: 28px 26px;
  position: relative;
  overflow: hidden;
}
.hero-panel::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.12), transparent);
}
.hero-panel::after {
  content: "";
  position: absolute;
  left: 20px;
  top: 0;
  width: 76px;
  height: 34px;
  background: linear-gradient(180deg, rgba(53, 208, 255, 0.18), transparent);
  filter: blur(10px);
  animation: heroSweep 4.5s ease-in-out infinite;
}
@keyframes heroSweep {
  0%, 100% {
    transform: translateX(0);
    opacity: 0.7;
  }
  50% {
    transform: translateX(220px);
    opacity: 1;
  }
}
.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}
.panel-title {
  color: var(--text-hi);
  font-size: 16px;
  font-weight: 700;
}
.panel-tag {
  display: inline-flex;
  padding: 3px 9px;
  border-radius: 999px;
  background: rgba(245, 181, 68, 0.12);
  border: 1px solid rgba(245, 181, 68, 0.35);
  color: var(--gold);
  font-size: 12px;
}
.panel-flow {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.flow-row {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px;
  border-radius: 14px;
  background: rgba(7, 17, 31, 0.35);
  border: 1px solid rgba(145, 195, 255, 0.10);
  color: #aabfd5;
  font-size: 14px;
  line-height: 1.6;
}
.flow-row b {
  color: #fff;
  font-weight: 600;
}
.flow-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 28px;
  height: 28px;
  border-radius: 9px;
  background: rgba(45, 140, 255, 0.16);
  border: 1px solid rgba(53, 208, 255, 0.3);
  color: var(--brand-strong);
  font-weight: 700;
  font-size: 13px;
}
.hero-note {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  margin-top: 16px;
  padding: 15px 16px;
  border-radius: 14px;
  background: rgba(245, 181, 68, 0.08);
  border: 1px solid rgba(245, 181, 68, 0.2);
  color: #d7c8a2;
  font-size: 13px;
  line-height: 1.6;
}
.content-wrap {
  padding: 72px 0 84px;
}
.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 326px;
  gap: 34px;
  align-items: start;
}
.content-main {
  min-width: 0;
}
.content-aside {
  min-width: 0;
  top: 96px;
}
.section-head {
  margin-bottom: 32px;
}
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--brand-strong);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}
.section-label::before {
  content: "";
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--brand), var(--brand-strong));
}
.section-head h2,
.faq-row h2 {
  color: var(--text-hi);
  font-size: 30px;
  line-height: 1.35;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.section-sub {
  margin-top: 10px;
  max-width: 640px;
  color: var(--text-mid);
  font-size: 15px;
}
.timeline {
  position: relative;
  margin: 0;
  padding: 0;
}
.timeline-card {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
  border-radius: 18px;
  overflow: hidden;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-card);
  margin-bottom: 26px;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}
.timeline-card:hover {
  transform: translateY(-3px);
  border-color: rgba(53, 208, 255, 0.45);
  box-shadow: 0 24px 60px rgba(0, 10, 25, 0.55), 0 0 24px rgba(45, 140, 255, 0.22);
}
.timeline-card.rev .tl-media {
  order: 2;
}
.tl-media {
  position: relative;
  min-height: 240px;
  background: rgba(10, 26, 44, 0.35);
  overflow: hidden;
}
.tl-media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.timeline-card:hover .tl-media img {
  transform: scale(1.02);
}
.tl-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(7, 17, 31, 0.08), rgba(7, 17, 31, 0.5));
}
.timeline-card.rev .tl-media::after {
  background: linear-gradient(-90deg, rgba(7, 17, 31, 0.08), rgba(7, 17, 31, 0.5));
}
.tl-step {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  background: rgba(7, 17, 31, 0.85);
  border: 1px solid rgba(53, 208, 255, 0.45);
  border-radius: 12px;
  color: var(--brand-strong);
  font-weight: 800;
  font-size: 16px;
  box-shadow: 0 0 18px rgba(45, 140, 255, 0.18);
}
.timeline-card.rev .tl-step {
  left: auto;
  right: 16px;
}
.tl-body {
  padding: 28px 30px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.tl-body h3 {
  margin-bottom: 12px;
  color: var(--text-hi);
  font-size: 22px;
  font-weight: 700;
  line-height: 1.4;
}
.tl-body h3 span {
  color: var(--brand-strong);
}
.tl-body p {
  color: #a7bad1;
  font-size: 15px;
  line-height: 1.8;
}
.tl-point {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--gold);
  font-size: 13px;
  margin-top: 18px;
}
.tl-point svg {
  width: 16px;
  height: 16px;
}
.plan-section {
  margin-top: 62px;
}
.plan-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}
.plan-card {
  position: relative;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 18px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-card);
  padding: 28px 22px 22px;
  display: flex;
  flex-direction: column;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}
.plan-card:hover {
  transform: translateY(-3px);
  border-color: rgba(53, 208, 255, 0.4);
  box-shadow: 0 24px 60px rgba(0, 10, 25, 0.5), var(--glow-soft);
}
.plan-card.is-hot {
  border-color: rgba(53, 208, 255, 0.5);
  background: linear-gradient(180deg, rgba(45, 140, 255, 0.12), rgba(17, 33, 55, 0.66));
  box-shadow: 0 0 0 1px rgba(53, 208, 255, 0.1), 0 26px 58px rgba(0, 10, 25, 0.55);
}
.plan-tag-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 14px;
}
.plan-tag {
  display: inline-flex;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(245, 181, 68, 0.12);
  border: 1px solid rgba(245, 181, 68, 0.28);
  color: var(--gold);
  font-size: 12px;
  font-weight: 600;
}
.plan-tag.blue-tag {
  background: rgba(45, 140, 255, 0.14);
  border-color: rgba(53, 208, 255, 0.35);
  color: var(--brand-strong);
}
.plan-title {
  color: var(--text-hi);
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 8px;
}
.plan-desc {
  font-size: 14px;
  color: #93a8bf;
  line-height: 1.7;
  margin-bottom: 16px;
  min-height: 72px;
}
.plan-feature {
  margin: 0 0 20px;
}
.plan-feature li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-bottom: 7px;
  color: #b5c8db;
  font-size: 14px;
  line-height: 1.6;
}
.plan-feature li::before {
  content: "";
  flex: 0 0 auto;
  width: 6px;
  height: 6px;
  border-radius: 2px;
  margin-top: 8px;
  background: linear-gradient(135deg, var(--brand), var(--brand-strong));
}
.plan-card .btn {
  margin-top: auto;
  width: 100%;
}
.aside-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 18px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-card);
  padding: 24px 22px;
}
.aside-card + .aside-card {
  margin-top: 20px;
}
.aside-card h3 {
  color: var(--text-hi);
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.aside-card h3::before {
  content: "";
  width: 4px;
  height: 16px;
  border-radius: 4px;
  background: linear-gradient(180deg, var(--brand), var(--brand-strong));
}
.aside-note {
  color: #8da5bf;
  font-size: 13px;
  line-height: 1.7;
  margin-bottom: 18px;
}
.aside-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.btn-block {
  width: 100%;
}
.btn-sm {
  min-height: 40px;
  padding: 8px 17px;
  font-size: 14px;
}
.aside-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.aside-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid rgba(145, 195, 255, 0.08);
  color: #b0c3d8;
  font-size: 14px;
}
.aside-list li:last-child {
  border-bottom: 0;
}
.aside-list strong {
  color: var(--text-hi);
  font-size: 14px;
}
.faq-section {
  padding: 66px 0 72px;
  border-top: 1px solid rgba(145, 195, 255, 0.1);
  background: rgba(7, 17, 31, 0.55);
}
.faq-row {
  max-width: 860px;
  margin: 0 auto;
}
.faq-row .section-sub {
  text-align: left;
}
.faq-list {
  margin-top: 30px;
}
.faq-item {
  border: 1px solid rgba(145, 195, 255, 0.16);
  background: rgba(17, 33, 55, 0.46);
  border-radius: 16px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  margin-bottom: 14px;
  transition: border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}
.faq-item[open] {
  border-color: rgba(53, 208, 255, 0.4);
  background: rgba(21, 42, 68, 0.6);
  box-shadow: 0 0 24px rgba(45, 140, 255, 0.12);
}
.faq-item summary {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 19px 22px;
  cursor: pointer;
  color: var(--text-hi);
  font-weight: 600;
  font-size: 16px;
}
.faq-item summary::after {
  content: "+";
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 9px;
  border: 1px solid rgba(145, 195, 255, 0.22);
  background: rgba(7, 17, 31, 0.4);
  color: var(--brand-strong);
  font-size: 20px;
  font-weight: 400;
  line-height: 1;
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.faq-item[open] summary::after {
  transform: rotate(45deg);
  border-color: rgba(53, 208, 255, 0.5);
}
.faq-answer {
  padding: 0 22px 22px;
  color: #a5b9ce;
  font-size: 15px;
  line-height: 1.8;
}
.faq-answer strong {
  color: #d6e7ff;
}
.cta-section {
  padding: 72px 0 90px;
}
.cta-card {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 42px;
  background: linear-gradient(135deg, rgba(45, 140, 255, 0.14), rgba(17, 33, 55, 0.82));
  border: 1px solid rgba(53, 208, 255, 0.28);
  border-radius: 24px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 24px 64px rgba(0, 10, 25, 0.5), 0 0 40px rgba(45, 140, 255, 0.12);
  padding: 44px;
  overflow: hidden;
}
.cta-card::before {
  content: "";
  position: absolute;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  right: -100px;
  top: -160px;
  background: radial-gradient(circle, rgba(53, 208, 255, 0.18), transparent 70%);
}
.cta-info,
.cta-form-wrap {
  position: relative;
}
.cta-info .section-label {
  margin-bottom: 14px;
}
.cta-info h2 {
  color: var(--text-hi);
  font-size: 30px;
  line-height: 1.35;
  margin-bottom: 14px;
}
.cta-info p {
  color: #b7c9de;
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 18px;
}
.cta-points li {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
  color: #a9c0d7;
  font-size: 14px;
}
.cta-points li::before {
  content: "";
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: rgba(53, 208, 255, 0.16);
  border: 1px solid rgba(53, 208, 255, 0.4);
  background-image: radial-gradient(circle, var(--brand-strong) 3px, transparent 3px);
}
.cta-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 24px;
  background: rgba(7, 17, 31, 0.5);
  border: 1px solid rgba(145, 195, 255, 0.16);
  border-radius: 18px;
}
.form-field label {
  display: block;
  color: #c6d7e9;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 6px;
}
.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  background: rgba(4, 13, 25, 0.6);
  border: 1px solid rgba(145, 195, 255, 0.18);
  border-radius: 12px;
  color: var(--text-hi);
  font-size: 15px;
  padding: 12px 14px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
  -webkit-appearance: none;
  appearance: none;
}
.form-field textarea {
  min-height: 92px;
  resize: vertical;
}
.form-field select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%2335D0FF' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 38px;
}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  background: rgba(7, 19, 35, 0.7);
  border-color: var(--brand-strong);
  box-shadow: 0 0 0 3px rgba(53, 208, 255, 0.16);
  outline: none;
}
.form-feedback {
  display: none;
  padding: 12px 14px;
  border-radius: 12px;
  background: rgba(53, 208, 255, 0.1);
  border: 1px solid rgba(53, 208, 255, 0.3);
  color: #c5f0ff;
  font-size: 14px;
}
.form-feedback.show {
  display: block;
}
.site-footer {
  background: var(--bg-deep);
  border-top: 1px solid rgba(145, 195, 255, 0.12);
  padding: 54px 0 34px;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 40px;
}
.footer-brand .brand {
  margin-bottom: 14px;
}
.footer-desc {
  max-width: 320px;
  color: #8096ae;
  font-size: 14px;
  line-height: 1.8;
}
.footer-col h5 {
  position: relative;
  color: var(--text-hi);
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 14px;
  padding-bottom: 10px;
}
.footer-col h5::after {
  content: "";
  position: absolute;
  width: 24px;
  height: 2px;
  left: 0;
  bottom: 0;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--brand), var(--brand-strong));
}
.footer-col li {
  margin-bottom: 8px;
}
.footer-col a {
  color: #90a6bd;
  font-size: 14px;
  line-height: 1.6;
  transition: color 0.2s ease, padding-left 0.2s ease;
}
.footer-col a:hover {
  color: #dff4ff;
  padding-left: 4px;
}
.footer-news {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(145, 195, 255, 0.1);
  border-radius: 12px;
  padding: 12px 14px;
  color: #8197af;
  font-size: 13px;
  line-height: 1.7;
}
.footer-news strong {
  display: block;
  color: #c2d2e3;
  font-weight: 600;
  margin-bottom: 4px;
}
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border-top: 1px solid rgba(145, 195, 255, 0.1);
  padding-top: 24px;
}
.footer-copy {
  color: #668097;
  font-size: 13px;
}
.footer-domain {
  color: #4b6379;
  font-size: 13px;
  letter-spacing: 0.04em;
}
.svg-defs {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}
@media (min-width: 992px) {
  .mobile-menu {
    display: none;
  }
  .main-nav {
    margin-left: auto;
  }
  .header-cta {
    display: inline-block;
  }
}
@media (max-width: 991px) {
  .main-nav,
  .header-cta {
    display: none;
  }
  .mobile-menu {
    display: block;
  }
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 34px;
  }
  .hero-panel {
    max-width: 620px;
    margin-left: 0;
  }
  .content-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .content-aside {
    position: static !important;
    top: auto;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }
  .aside-card + .aside-card {
    margin-top: 0;
  }
  .cta-card {
    grid-template-columns: 1fr;
  }
  .bottom-tab {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 70;
    background: rgba(6, 15, 28, 0.92);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-top: 1px solid rgba(145, 195, 255, 0.14);
    padding-bottom: env(safe-area-inset-bottom, 0);
  }
  .tab-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3px;
    padding: 8px 0 7px;
    color: #677e96;
    font-size: 11px;
    transition: color 0.2s ease;
  }
  .tab-link svg {
    width: 19px;
    height: 19px;
  }
  .tab-link.is-active {
    color: var(--brand-strong);
    font-weight: 600;
  }
  .tab-link.is-active svg {
    filter: drop-shadow(0 0 8px rgba(53, 208, 255, 0.6));
  }
  body {
    padding-bottom: 68px;
  }
  .footer-top {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 34px;
  }
}
@media (max-width: 767px) {
  .container {
    padding: 0 20px;
  }
  .page-hero {
    padding: 52px 0 44px;
  }
  .hero-title {
    font-size: 34px;
    line-height: 1.3;
  }
  .hero-summary {
    font-size: 15px;
  }
  .hero-meta {
    gap: 12px 20px;
  }
  .hero-panel {
    padding: 22px 20px;
  }
  .content-wrap {
    padding: 52px 0 64px;
  }
  .section-head h2,
  .faq-row h2,
  .cta-info h2 {
    font-size: 26px;
  }
  .section-sub {
    font-size: 14px;
  }
  .timeline-card,
  .timeline-card.rev {
    grid-template-columns: 1fr;
  }
  .timeline-card.rev .tl-media {
    order: -1;
  }
  .timeline-card.rev .tl-step {
    left: 16px;
    right: auto;
  }
  .tl-media {
    min-height: 190px;
  }
  .tl-body {
    padding: 24px 22px 26px;
  }
  .tl-body h3 {
    font-size: 20px;
  }
  .tl-body p {
    font-size: 14px;
  }
  .tl-media::after {
    background: linear-gradient(180deg, rgba(7, 17, 31, 0.08), rgba(7, 17, 31, 0.55)) !important;
  }
  .plan-grid {
    grid-template-columns: 1fr;
  }
  .plan-desc {
    min-height: 0;
  }
  .content-aside {
    display: flex;
    flex-direction: column;
  }
  .aside-card + .aside-card {
    margin-top: 16px;
  }
  .faq-section {
    padding: 50px 0 58px;
  }
  .faq-item summary {
    padding: 16px 16px;
    font-size: 15px;
  }
  .faq-answer {
    padding: 0 16px 20px;
    font-size: 14px;
  }
  .cta-section {
    padding: 54px 0 70px;
  }
  .cta-card {
    padding: 30px 20px;
    gap: 28px;
  }
  .cta-form {
    padding: 20px 18px;
  }
  .site-footer {
    padding: 42px 0 30px;
  }
  .footer-top {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
  .footer-copy,
  .footer-domain {
    font-size: 12px;
  }
}
@media (max-width: 480px) {
  .brand-name {
    font-size: 16px;
  }
  .brand-mark {
    width: 36px;
    height: 36px;
    font-size: 14px;
  }
  .hero-title {
    font-size: 30px;
  }
  .hero-cta {
    gap: 10px;
    flex-direction: column;
    align-items: stretch;
  }
  .btn-lg {
    width: 100%;
  }
}