/* roulang page: index */
:root {
  --navy: #0B1B34;
  --deep: #0A1526;
  --panel: #121F33;
  --cyan: #2DE3C8;
  --blue: #5B7FFF;
  --light-blue: #B9EBFF;
  --warm: #FF8A5C;
  --text: #EAF2FF;
  --muted: #A6B7D4;
  --line: rgba(255,255,255,.12);
  --glass: rgba(255,255,255,.05);
  --radius-lg: 16px;
  --radius-sm: 10px;
  --shadow: 0 16px 50px rgba(0, 15, 40, .35);
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--deep);
  color: var(--text);
  line-height: 1.8;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; }
a { color: var(--cyan); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--light-blue); }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}
.container { max-width: 1280px; }

.section { padding: 100px 0; }
.section-sm { padding: 64px 0; }
.bg-deep { background: var(--deep); }
.bg-panel { background: var(--panel); }
.text-muted { color: var(--muted) !important; }
.text-cyan { color: var(--cyan); }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--cyan);
  letter-spacing: .06em;
  background: rgba(45, 227, 200, .08);
  border: 1px solid rgba(45, 227, 200, .18);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 20px;
}
.section-title {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 16px;
}
.section-sub { max-width: 760px; color: var(--muted); margin-bottom: 40px; }

.btn { border-radius: var(--radius-sm); font-weight: 600; padding: 12px 22px; border: 1px solid transparent; transition: all .25s ease; }
.btn-lg { padding: 15px 32px; font-size: 16px; border-radius: 12px; }
.btn-primary {
  background: linear-gradient(135deg, var(--cyan) 0%, var(--blue) 100%);
  border: 0;
  color: #0B1B34;
  font-weight: 700;
  box-shadow: 0 0 24px rgba(45, 227, 200, .3), 0 8px 20px rgba(91, 127, 255, .25);
}
.btn-primary:hover { color: #07131f; box-shadow: 0 0 36px rgba(45, 227, 200, .55), 0 12px 28px rgba(91, 127, 255, .35); transform: translateY(-2px); }
.btn-primary:active { transform: translateY(1px); box-shadow: 0 0 14px rgba(45,227,200,.3); }
.btn-outline {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.22);
  color: var(--text);
  backdrop-filter: blur(10px);
}
.btn-outline:hover { border-color: var(--cyan); color: var(--cyan); background: rgba(45,227,200,.06); transform: translateY(-2px); }
.btn-outline:active { transform: translateY(0); }
.btn-ghost {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--text);
}
.btn-ghost:hover { border-color: var(--cyan); color: var(--cyan); }

.glass-card {
  position: relative;
  background: rgba(255,255,255,.045);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(12px);
  overflow: hidden;
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.glass-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 10%;
  right: 10%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.35), transparent);
}
.glass-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0, 25, 60, .45);
  border-color: rgba(45, 227, 200, .35);
}

.card-body { padding: 28px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 1050;
  background: rgba(10, 21, 38, .78);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.navbar { padding: 12px 0; }
.navbar-brand {
  font-size: 1.12rem;
  font-weight: 800;
  color: var(--text);
  line-height: 1.3;
  display: flex;
  align-items: center;
  gap: 10px;
}
.navbar-brand i {
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  color: #0B1B34;
  border-radius: 10px;
  font-size: 16px;
}
.navbar-brand span { margin-right: 4px; }
.navbar .nav-link {
  color: var(--muted);
  font-weight: 500;
  padding: 10px 16px !important;
  border-radius: 999px;
  position: relative;
}
.navbar .nav-link:hover,
.navbar .nav-link.active {
  color: var(--text);
  background: rgba(255,255,255,.05);
}
.nav-link.active::after {
  content: "";
  position: absolute;
  left: 20px;
  right: 20px;
  bottom: 4px;
  height: 2px;
  border-radius: 2px;
  background: var(--cyan);
}
.nav-cta {
  background: rgba(45, 227, 200, .1);
  border: 1px solid rgba(45, 227, 200, .35);
  color: var(--cyan) !important;
  border-radius: 10px;
  padding: 10px 20px !important;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all .25s ease;
}
.nav-cta:hover {
  background: var(--cyan);
  color: #0B1B34 !important;
  box-shadow: 0 0 20px rgba(45,227,200,.4);
}

.hero {
  min-height: 86vh;
  display: flex;
  align-items: center;
  position: relative;
  padding: 120px 0 100px;
  background-image: linear-gradient(180deg, rgba(10,21,38,.5), rgba(10,21,38,.88)), url('/assets/images/backpic/back-1.webp');
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
}
.hero-main-title {
  font-size: clamp(1.9rem, 4vw, 3.1rem);
  font-weight: 900;
  line-height: 1.3;
  margin-bottom: 22px;
  color: var(--text);
}
.hero-main-title em { font-style: normal; color: var(--cyan); }
.hero-desc { font-size: 1.05rem; color: var(--muted); max-width: 680px; margin-bottom: 34px; line-height: 1.9; }
.hero-glide {
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.15);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(18px);
  padding: 16px 18px;
  display: flex;
  gap: 16px;
  align-items: center;
  max-width: 400px;
  margin-top: 30px;
}
.hero-glide .icon {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  color: #07131f;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex: 0 0 auto;
}
.hero-stat { display: flex; align-items: center; gap: 12px; padding: 24px 0; border-bottom: 1px solid rgba(255,255,255,.08); }
.hero-stat .num { font-size: 30px; font-weight: 900; color: var(--text); }
.hero-stat .num span { color: var(--cyan); }
.hero-stat .label { font-size: 14px; color: var(--muted); }

.focus-card {
  padding: 26px 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  height: 100%;
}
.focus-icon {
  width: 50px;
  height: 50px;
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(45,227,200,.12);
  border: 1px solid rgba(45,227,200,.2);
  color: var(--cyan);
  font-size: 22px;
  margin-bottom: 4px;
}
.focus-card h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 8px; }
.focus-card p { color: var(--muted); font-size: 15px; margin: 0; line-height: 1.8; }

.stats-area { background: var(--panel); border-top: 1px solid rgba(255,255,255,.06); border-bottom: 1px solid rgba(255,255,255,.06); }
.stat-box { text-align: center; padding: 30px 16px; }
.stat-box .num { font-size: clamp(1.8rem, 3vw, 2.6rem); font-weight: 900; color: var(--cyan); line-height: 1.2; }
.stat-box .label { color: var(--muted); font-size: 15px; margin-top: 6px; }

.cover-image { border-radius: 18px; overflow: hidden; position: relative; }
.cover-image img { width: 100%; object-fit: cover; display: block; min-height: 240px; }
.img-equal img { aspect-ratio: 4 / 3; }

.timeline { position: relative; padding-left: 28px; margin-top: 24px; }
.timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 4px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--cyan), rgba(45, 227, 200, .05));
}
.timeline-item { position: relative; padding-bottom: 30px; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-dot {
  position: absolute;
  left: -28px;
  top: 12px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--deep);
  border: 2px solid var(--cyan);
  box-shadow: 0 0 0 4px rgba(45,227,200,.12);
}
.timeline-card {
  background: rgba(255,255,255,.04);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 22px 24px;
  position: relative;
  transition: border-color .2s ease;
}
.timeline-card:hover { border-color: rgba(45,227,200,.3); }
.timeline-card .step { font-size: 13px; color: var(--cyan); font-weight: 600; letter-spacing: .04em; }
.timeline-card h4 { font-size: 1.1rem; font-weight: 700; margin: 6px 0; }
.timeline-card p { margin: 0; color: var(--muted); font-size: 15px; }
.timeline-card .time { position: absolute; right: 18px; top: 18px; font-size: 13px; color: var(--muted); }

.content-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 100%;
  display: flex;
  flex-direction: column;
  background: var(--panel);
  border: 1px solid rgba(255,255,255,.07);
  transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.content-card:hover { transform: translateY(-5px); border-color: rgba(45,227,200,.35); box-shadow: var(--shadow); }
.content-card .ct-img { overflow: hidden; }
.content-card .ct-img img { aspect-ratio: 16 / 10; width: 100%; object-fit: cover; transition: transform .4s ease; }
.content-card:hover .ct-img img { transform: scale(1.04); }
.content-card .ct-body { padding: 24px; flex: 1; display: flex; flex-direction: column; gap: 12px; }
.content-card .ct-body h3 { font-size: 1.15rem; font-weight: 700; margin: 0; }
.content-card .ct-body p { color: var(--muted); font-size: 15px; margin: 0; flex: 1; }
.ct-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--cyan);
  font-weight: 600;
  font-size: 15px;
}
.ct-more i { transition: transform .2s ease; }
.ct-more:hover i { transform: translateX(4px); }

.price-wrap { border-radius: var(--radius-lg); overflow: hidden; background: rgba(255,255,255,.04); border: 1px solid var(--line); }
.price-table { width: 100%; }
.price-table th {
  background: rgba(7, 18, 33, .8);
  color: var(--text);
  font-weight: 700;
  padding: 18px 16px;
  border-bottom: 1px solid var(--line);
  text-align: center;
  vertical-align: middle;
}
.price-table td {
  padding: 18px 16px;
  border-bottom: 1px solid rgba(255,255,255,.07);
  color: var(--muted);
  text-align: center;
}
.price-table tbody tr:hover td { background: rgba(255,255,255,.025); }
.price-table .rec-col {
  background: rgba(45,227,200,.05);
  border-left: 1px solid rgba(45,227,200,.2);
  border-right: 1px solid rgba(45,227,200,.2);
  position: relative;
}
.rec-badge {
  position: absolute;
  top: -1px;
  left: 12px;
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  color: #0B1B34;
  font-size: 12px;
  font-weight: 800;
  padding: 2px 12px;
  border-radius: 0 0 8px 8px;
}
.price-table .plan-name { color: var(--text); font-weight: 700; font-size: 1rem; }
.price-table .fa-check { color: var(--cyan); }
.price-table .fa-minus { color: rgba(255,255,255,.25); }

.cta-band {
  background-image: linear-gradient(180deg, rgba(10,21,38,.85), rgba(10,21,38,.94)), url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center;
  border-top: 1px solid rgba(255,255,255,.06);
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.contact-form-card {
  border-radius: 20px;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.13);
  padding: 32px;
  backdrop-filter: blur(16px);
}
.form-label { color: var(--text); font-weight: 500; margin-bottom: 6px; }
.form-control, .form-select {
  background: #0D1B30;
  border: 1px solid rgba(255,255,255,.13);
  color: var(--text);
  border-radius: 10px;
  min-height: 48px;
  padding: 10px 16px;
}
.form-control:focus, .form-select:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 4px rgba(45,227,200,.1);
  background: #0D1B30;
  color: var(--text);
}
.form-control::placeholder { color: #7185a8; }
textarea.form-control { min-height: 110px; resize: vertical; }

.faq-item { border: 1px solid var(--line); border-radius: 14px; background: rgba(255,255,255,.04); margin-bottom: 14px; overflow: hidden; }
.faq-item:last-child { margin-bottom: 0; }
.faq-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  background: transparent;
  border: 0;
  color: var(--text);
  font-weight: 600;
  padding: 18px 22px;
  font-size: 16px;
  text-align: left;
  min-height: 50px;
}
.faq-btn .fa-chevron-down { color: var(--cyan); transition: transform .25s ease; }
.faq-item.active .fa-chevron-down { transform: rotate(180deg); }
.faq-body { padding: 0 22px 20px; color: var(--muted); }

.post-card {
  padding: 22px 22px;
  border-radius: 14px;
  background: rgba(255,255,255,.04);
  border: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  height: 100%;
  transition: all .25s ease;
}
.post-card:hover { border-color: rgba(45,227,200,.3); transform: translateY(-3px); background: rgba(255,255,255,.06); }
.post-meta { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 8px; }
.post-cat {
  background: rgba(45,227,200,.12);
  border: 1px solid rgba(45,227,200,.2);
  color: var(--cyan);
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 13px;
}
.post-date { font-size: 13px; color: var(--muted); }
.post-title { font-size: 1.1rem; font-weight: 700; color: var(--text); line-height: 1.5; margin-bottom: 8px; }
.post-summary { color: var(--muted); font-size: 15px; margin-bottom: 14px; }
.post-link {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--cyan);
  font-weight: 600;
  font-size: 14px;
}

.empty-state { border: 1px dashed rgba(255,255,255,.15); border-radius: 14px; padding: 36px; text-align: center; color: var(--muted); background: rgba(255,255,255,.02); }
.empty-state i { font-size: 28px; color: var(--muted); margin-bottom: 12px; display: block; }

.footer {
  background: #07101B;
  border-top: 1px solid rgba(45,227,200,.25);
  padding-top: 70px;
  color: var(--muted);
  font-size: 15px;
}
.footer h5 { color: var(--text); font-weight: 700; font-size: 16px; margin-bottom: 18px; }
.footer a { color: var(--muted); display: inline-block; margin-bottom: 8px; }
.footer a:hover { color: var(--cyan); }
.footer-brand { font-size: 1.16rem; font-weight: 800; color: var(--text); display: inline-flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.footer-brand i { color: var(--cyan); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding: 20px 0; margin-top: 30px; font-size: 13px; }
.footer-bottom a { color: var(--muted); font-size: 13px; margin: 0 10px 0 0; }
.footer-links { display: flex; flex-direction: column; gap: 6px; }
.footer-row a { margin-bottom: 0; color: var(--muted); }
.footer-contact li { display: flex; gap: 10px; margin-bottom: 12px; color: var(--text); }
.footer-contact i { color: var(--cyan); width: 18px; text-align: center; margin-top: 3px; }

@media (max-width: 992px) {
  .section { padding: 80px 0; }
  .navbar-collapse { background: rgba(10, 21, 38, .97); padding: 16px; border-radius: 16px; border: 1px solid rgba(255,255,255,.08); margin-top: 10px; }
  .navbar .nav-link { padding: 12px 14px !important; }
  .nav-link.active::after { display: none; }
  .hero { padding: 100px 0 70px; min-height: auto; }
}
@media (max-width: 768px) {
  body { font-size: 15px; }
  .section { padding: 60px 0; }
  .card-body, .contact-form-card { padding: 24px 20px; }
  .price-wrap { overflow-x: auto; }
  .price-table { min-width: 720px; }
  .hero-glide { max-width: 100%; }
  .footer { padding-top: 50px; }
}
@media (max-width: 520px) {
  .hero-main-title { font-size: 1.7rem; }
  .hero-btn-group .btn { display: block; width: 100%; margin-bottom: 12px; }
  .section-title { font-size: 1.55rem; }
}

/* roulang page: category1 */
:root{
  --primary:#0B1B34;
  --accent:#2DE3C8;
  --accent-blue:#5B7FFF;
  --accent-blue-light:#849CFF;
  --glow:#8FF7E8;
  --bg:#0A1526;
  --bg-soft:#0F1D31;
  --panel:#121F33;
  --text:#EAF2FF;
  --muted:#A6B7D4;
  --line:rgba(255,255,255,.10);
  --glass-bg:rgba(255,255,255,.045);
  --glass-border:rgba(255,255,255,.12);
  --radius:1rem;
  --radius-sm:.65rem;
  --shadow:0 20px 60px rgba(0,25,60,.45);
  --font-stack:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-stack);
  background:var(--bg);
  color:var(--text);
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
ul,p{margin-bottom:0}
button,input,textarea{font-family:inherit}
.container{max-width:1280px}

.text-muted{color:#91A6C6!important}

.skip-link{
  position:fixed;top:-100px;left:24px;z-index:2000;
  background:var(--accent);color:#07131f;padding:10px 18px;
  border-radius:8px;font-weight:700;transition:top .2s;
}
.skip-link:focus{top:16px}

/* ===== Header / Nav ===== */
.site-header{
  position:sticky;top:0;z-index:1050;
  background:rgba(7,15,28,.82);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(255,255,255,.07);
}
.site-header .navbar{
  padding:.72rem 0;
}
.navbar-brand{
  display:inline-flex;align-items:center;gap:.6rem;
  font-size:1.3rem;font-weight:800;color:var(--text)!important;
  letter-spacing:.02em;
}
.navbar-brand i{
  width:38px;height:38px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--accent),var(--accent-blue));
  color:#06121f;font-size:1rem;box-shadow:0 0 24px rgba(45,227,200,.25);
}
.navbar .navbar-nav{
  gap:.15rem;
}
.navbar .nav-link{
  color:#C6D5EC!important;
  font-weight:600;
  font-size:1rem;
  padding:.55rem 1rem;
  border-radius:99px;
  transition:all .25s ease;
  position:relative;
}
.navbar .nav-link:hover{
  color:#fff!important;
  background:rgba(255,255,255,.06);
}
.navbar .nav-link.active{
  color:var(--glow)!important;
  background:rgba(45,227,200,.12);
  box-shadow:inset 0 0 0 1px rgba(45,227,200,.18);
}
.nav-cta{
  min-height:46px;
  padding:.65rem 1.35rem;
  border-radius:10px;
  font-weight:700;
  color:#06121f;
  background:linear-gradient(135deg,#41EED0,#5B7FFF);
  border:none;
  box-shadow:0 10px 34px rgba(45,120,255,.28);
  transition:all .25s ease;
}
.nav-cta:hover{
  color:#06121f;
  transform:translateY(-2px);
  box-shadow:0 14px 40px rgba(45,200,240,.38);
}
.navbar-toggler{
  border:1px solid rgba(255,255,255,.2);
  border-radius:10px;
  padding:.35rem .6rem;
}
.navbar-toggler:focus{
  box-shadow:0 0 0 0 transparent;
  border-color:var(--accent);
}
.navbar-toggler-icon{
  width:1.4em;
  height:1.4em;
  background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(234,242,255,.85)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* ===== Page Hero / Banner ===== */
.page-hero{
  position:relative;
  padding:5.2rem 0 4.8rem;
  background:linear-gradient(180deg,rgba(4,11,21,.62),rgba(10,21,38,.55)),url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:auto 0 -1px 0;
  height:160px;
  background:linear-gradient(180deg,transparent,var(--bg));
  pointer-events:none;
}
.hero-breadcrumb{
  display:inline-flex;
  align-items:center;
  gap:.5rem;
  font-size:.92rem;
  color:var(--muted);
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.1);
  backdrop-filter:blur(6px);
  padding:.38rem 1rem;
  border-radius:99px;
  margin-bottom:1.1rem;
}
.hero-breadcrumb i{
  color:var(--accent);
  font-size:.72rem;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:.45rem;
  color:var(--glow);
  font-weight:700;
  font-size:1rem;
  margin-bottom:.9rem;
}
.page-hero h1{
  font-size:clamp(2.2rem,5vw,3.6rem);
  font-weight:800;
  line-height:1.2;
  letter-spacing:.02em;
  margin:0 0 1.2rem;
}
.page-hero .hero-lead{
  max-width:720px;
  font-size:1.08rem;
  line-height:2;
  color:#D5E1F4;
  margin-bottom:2rem;
}
.btn-primary{
  --bs-btn-bg:transparent;
  --bs-btn-border-color:transparent;
  --bs-btn-hover-bg:transparent;
  --bs-btn-hover-border-color:transparent;
}
.btn-accent,.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.55rem;
  min-height:52px;
  padding:.72rem 1.85rem;
  border-radius:11px;
  font-weight:700;
  font-size:1rem;
  transition:all .28s ease;
}
.btn-accent{
  color:#071522;
  background:linear-gradient(135deg,#41EED0,#4E7CFF);
  border:none;
  box-shadow:0 0 0 1px rgba(45,227,200,.2),0 16px 44px rgba(30,190,220,.3);
}
.btn-accent:hover{
  color:#06121f;
  transform:translateY(-3px);
  box-shadow:0 20px 55px rgba(45,160,255,.38);
}
.btn-ghost{
  color:#E3EDFF;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.16);
  backdrop-filter:blur(6px);
}
.btn-ghost:hover{
  color:#fff;
  border-color:rgba(45,227,200,.55);
  background:rgba(45,227,200,.08);
  transform:translateY(-3px);
}

/* ===== Section scaffolding ===== */
.section{
  position:relative;
  padding:5.5rem 0;
}
.bg-soft{
  background:linear-gradient(180deg,var(--bg),rgba(18,31,51,.42),var(--bg));
}
.sec-head{
  max-width:760px;
  margin:0 auto 3rem;
}
.sec-tag{
  display:inline-flex;
  align-items:center;
  gap:.45rem;
  font-size:.95rem;
  font-weight:700;
  color:var(--accent);
  margin-bottom:.5rem;
}
.sec-title{
  font-size:clamp(1.75rem,3.2vw,2.6rem);
  font-weight:800;
  line-height:1.3;
  margin-bottom:.8rem;
}
.sec-desc{
  color:var(--muted);
  font-size:1.02rem;
  line-height:1.9;
}

/* ===== Glass card ===== */
.glass-card{
  position:relative;
  height:100%;
  padding:1.8rem;
  border-radius:var(--radius);
  background:linear-gradient(145deg,rgba(255,255,255,.07),rgba(255,255,255,.025));
  border:1px solid rgba(255,255,255,.11);
  box-shadow:0 12px 40px rgba(2,12,32,.28);
  overflow:hidden;
  transition:all .3s ease;
}
.glass-card::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(100deg,rgba(255,255,255,.25),rgba(255,255,255,0));
}
.glass-card:hover{
  transform:translateY(-5px);
  border-color:rgba(45,227,200,.38);
  box-shadow:var(--shadow);
}
.glass-card .card-icon{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:46px;height:46px;
  border-radius:11px;
  font-size:1.2rem;
  color:#06121f;
  background:linear-gradient(135deg,var(--accent),var(--accent-blue));
  margin-bottom:1.15rem;
  box-shadow:0 8px 22px rgba(45,150,255,.25);
}
.glass-card h3{
  font-size:1.2rem;
  font-weight:700;
  margin-bottom:.55rem;
}
.glass-card p{
  color:var(--muted);
  line-height:1.9;
}

/* ===== Insight split ===== */
.insight-media{
  position:relative;
  border-radius:calc(var(--radius) + 4px);
  overflow:hidden;
  border:1px solid rgba(255,255,255,.12);
  box-shadow:0 26px 76px rgba(0,20,55,.55);
}
.insight-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  min-height:300px;
}
.insight-media::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:linear-gradient(200deg,rgba(10,21,38,.02) 10%,rgba(10,21,38,.45));
}
.float-note{
  position:absolute;
  right:1rem;
  bottom:1rem;
  z-index:2;
  display:flex;
  align-items:center;
  gap:.6rem;
  background:rgba(7,15,28,.72);
  backdrop-filter:blur(12px);
  border:1px solid rgba(255,255,255,.15);
  border-radius:.75rem;
  padding:.65rem 1rem;
  box-shadow:var(--shadow);
}
.float-note i{
  color:var(--accent);
  font-size:1.1rem;
}

/* ===== Checklist ===== */
.check-list{
  list-style:none;
  padding:0;
  margin:1.5rem 0 0;
  display:grid;
  gap:.65rem;
}
.check-list li{
  display:flex;
  gap:.7rem;
  align-items:flex-start;
  color:#DDE9FA;
  font-size:1rem;
}
.check-list i{
  color:var(--accent);
  margin-top:.35rem;
  font-size:.9rem;
}

/* ===== Process timeline ===== */
.timeline-section{
  background:linear-gradient(180deg,rgba(10,21,38,.9),rgba(18,31,51,.82)),url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  border-top:1px solid rgba(255,255,255,.05);
  border-bottom:1px solid rgba(255,255,255,.05);
}
.process-card{
  position:relative;
  padding:1.15rem 1.4rem 1.15rem 3.6rem;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.1);
  border-radius:.9rem;
  backdrop-filter:blur(12px);
  transition:all .3s ease;
}
.process-card:hover{
  border-color:rgba(45,227,200,.4);
  background:rgba(255,255,255,.08);
}
.step-no{
  position:absolute;
  left:1rem;
  top:1.25rem;
  width:34px;height:34px;
  border-radius:50%;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-weight:800;
  color:#05121f;
  background:linear-gradient(135deg,var(--accent),var(--accent-blue));
  box-shadow:0 0 0 5px rgba(45,227,200,.1),0 8px 24px rgba(0,0,0,.2);
}
.process-card h3{
  font-size:1.1rem;
  font-weight:700;
  margin-bottom:.4rem;
}
.process-card p{
  color:#B7CAE4;
  font-size:.95rem;
  line-height:1.85;
}

/* ===== Quote / info strip ===== */
.benefit-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:1rem;
  margin-top:1.6rem;
}
.benefit-pill{
  display:flex;
  gap:.65rem;
  align-items:center;
  background:rgba(255,255,255,.045);
  border:1px solid rgba(255,255,255,.1);
  padding:.95rem 1.1rem;
  border-radius:.9rem;
  color:#D7E4F8;
  transition:border-color .25s;
}
.benefit-pill:hover{
  border-color:rgba(45,227,200,.35);
}
.benefit-pill i{
  color:var(--accent);
  font-size:1rem;
}

/* ===== FAQ ===== */
.faq-panel{
  max-width:920px;
  margin:0 auto;
}
.faq-item{
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.11) !important;
  border-radius:.9rem !important;
  overflow:hidden;
  margin-bottom:.9rem;
}
.faq-item .accordion-button{
  background:rgba(255,255,255,.02);
  color:var(--text);
  font-size:1.05rem;
  font-weight:600;
  padding:1.15rem 1.35rem;
  border:none;
}
.faq-item .accordion-button:not(.collapsed){
  color:var(--glow);
  background:rgba(45,227,200,.06);
  box-shadow:none;
}
.faq-item .accordion-button:focus{
  box-shadow:inset 0 0 0 2px rgba(45,227,200,.2);
}
.faq-item .accordion-button::after{
  background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='rgba(234,242,255,.8)'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
  transition:transform .25s;
}
.faq-item .accordion-body{
  color:#C6D6EA;
  padding:1.05rem 1.35rem 1.35rem;
  border-top:1px solid rgba(255,255,255,.06);
  background:rgba(255,255,255,.02);
}
.faq-item .accordion-body p{
  color:var(--muted);
  line-height:1.95;
}

/* ===== Contact CTA ===== */
.cta-zone{
  position:relative;
  padding:5.5rem 0;
  background:linear-gradient(160deg,var(--panel),rgba(18,31,51,.55));
  border-top:1px solid rgba(255,255,255,.06);
}
.cta-zone .sec-title{
  margin-bottom:.8rem;
}
.contact-form{
  background:linear-gradient(140deg,rgba(255,255,255,.06),rgba(255,255,255,.025));
  border:1px solid rgba(255,255,255,.13);
  border-radius:calc(var(--radius) + 4px);
  padding:2rem;
  backdrop-filter:blur(18px);
  box-shadow:var(--shadow);
}
.contact-form .form-label{
  color:#E3ECFA;
  font-weight:600;
  font-size:.95rem;
}
.form-control,.form-select{
  background:#0D1B30 !important;
  border:1px solid rgba(255,255,255,.13) !important;
  color:var(--text) !important;
  border-radius:.7rem !important;
  padding:.75rem 1rem;
  font-size:1rem;
  transition:all .22s ease;
}
.form-control:focus,.form-select:focus{
  background:#0d1d33 !important;
  border-color:var(--accent) !important;
  box-shadow:0 0 0 4px rgba(45,227,200,.13) !important;
  outline:none;
}
.form-control::placeholder{
  color:#647C9F;
}
.contact-info-line{
  display:flex;
  gap:.85rem;
  align-items:center;
  background:rgba(255,255,255,.045);
  border:1px solid rgba(255,255,255,.09);
  border-radius:.85rem;
  padding:1rem 1.1rem;
  margin-bottom:.85rem;
  color:#D6E3FA;
}
.contact-info-line i{
  color:var(--accent);
  font-size:1.15rem;
  width:28px;
}
.form-status{
  color:var(--accent);
  font-weight:600;
  font-size:.98rem;
}

/* ===== Footer ===== */
.footer{
  background:#07111F;
  color:#C6D6EA;
  border-top:1px solid rgba(45,227,200,.35);
  padding:3.6rem 0 0;
}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:.6rem;
  font-size:1.25rem;
  font-weight:800;
  color:#fff;
  margin-bottom:.9rem;
}
.footer-brand i{
  width:34px;height:34px;
  border-radius:9px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:#06121f;
  background:linear-gradient(135deg,var(--accent),var(--accent-blue));
}
.footer p{
  color:#9CB0D0;
  line-height:1.8;
  padding-right:1.5rem;
}
.footer h5{
  font-size:1rem;
  font-weight:700;
  color:#EDF4FF;
  margin-bottom:1.1rem;
}
.footer-links{
  display:flex;
  flex-direction:column;
  gap:.6rem;
}
.footer-links a{
  color:#93A9C9;
  transition:color .22s;
}
.footer-links a:hover{
  color:var(--glow);
}
.footer-contact li{
  display:flex;
  align-items:center;
  gap:.8rem;
  color:#93A9C9;
  margin-bottom:.65rem;
}
.footer-contact i{
  width:20px;
  color:var(--accent);
}
.footer-bottom{
  padding:1.2rem 0;
  border-top:1px solid rgba(255,255,255,.07);
  color:#7189AB;
  font-size:.92rem;
}
.footer-bottom a{
  color:#7189AB;
  transition:color .2s;
}
.footer-bottom a:hover{
  color:var(--glow);
}

/* ===== Media queries ===== */
@media (max-width: 992px){
  .site-header .navbar-collapse{
    background:rgba(8,15,28,.97);
    padding:1rem 1.2rem 1.3rem;
    margin-top:.8rem;
    border-radius:1rem;
    border:1px solid rgba(255,255,255,.1);
  }
  .navbar .navbar-nav{
    gap:.2rem;
    margin-bottom:1rem!important;
  }
  .nav-cta{
    width:100%;
  }
  .section{
    padding:4rem 0;
  }
  .page-hero{
    padding:4.2rem 0 3.8rem;
  }
  .benefit-grid{
    grid-template-columns:1fr;
  }
}
@media (max-width:768px){
  .section{
    padding:3.3rem 0;
  }
  .page-hero h1{
    font-size:2.1rem;
  }
  .page-hero .hero-lead{
    font-size:.98rem;
  }
  .btn-accent,.btn-ghost{
    width:100%;
  }
  .btn-group-mobile .btn+.btn{
    margin-top:.75rem;
  }
  .contact-form{
    padding:1.35rem;
  }
  .hide-md{
    display:none!important;
  }
}
@media (max-width:520px){
  .section{
    padding:2.9rem 0;
  }
  .page-hero h1{
    font-size:1.85rem;
    line-height:1.3;
  }
  .eyebrow{
    font-size:.92rem;
  }
  .contact-info-line{
    align-items:flex-start;
  }
  .footer-bottom{
    flex-direction:column;
    gap:.5rem;
  }
}

/* roulang page: article */
:root {
  --bg: #0A1526;
  --bg-alt: #0D1B30;
  --bg-deep: #07111F;
  --navy: #0B1B34;
  --panel: rgba(255, 255, 255, 0.055);
  --panel-strong: rgba(255, 255, 255, 0.08);
  --border: rgba(255, 255, 255, 0.12);
  --border-light: rgba(255, 255, 255, 0.2);
  --aqua: #2DE3C8;
  --blue: #5B7FFF;
  --text: #EAF2FF;
  --muted: #A6B7D4;
  --muted-2: #7A8DB0;
  --orange: #FF8A5C;
  --dark-line: rgba(45, 227, 200, 0.18);
  --shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
  --shadow-lg: 0 20px 60px rgba(0, 25, 60, 0.45);
  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, "Segoe UI", sans-serif;
}

html, body { overflow-x: hidden; }
body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.8;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
* { box-sizing: border-box; }
img { max-width: 100%; }
a { text-decoration: none; color: inherit; transition: all .25s ease; }
a:hover { color: var(--aqua); }

.container { max-width: 1280px; }
.text-muted { color: var(--muted) !important; }
.small { font-size: 14px; }

::selection { background: rgba(45, 227, 200, .35); color: #fff; }

.btn {
  border-radius: 10px;
  padding: 12px 26px;
  font-weight: 700;
  border: 1px solid transparent;
  transition: all .25s ease;
  font-size: 15px;
}
.btn-main {
  background: linear-gradient(135deg, var(--aqua), #3EA2FF);
  color: #04101F;
  border: none;
  box-shadow: 0 0 18px rgba(45, 227, 200, 0.28), 0 8px 24px rgba(11, 27, 52, 0.35);
}
.btn-main:hover {
  color: #04101F;
  transform: translateY(-2px);
  box-shadow: 0 0 28px rgba(45, 227, 200, 0.5), 0 12px 28px rgba(11, 27, 52, 0.4);
}
.btn-ghost {
  background: rgba(255,255,255,0.04);
  color: var(--text);
  border: 1px solid rgba(255,255,255,0.22);
  backdrop-filter: blur(6px);
}
.btn-ghost:hover {
  border-color: rgba(45,227,200,.7);
  color: var(--aqua);
  background: rgba(45,227,200,.08);
}
.btn:focus-visible, .nav-cta:focus-visible {
  outline: 2px solid var(--aqua);
  outline-offset: 3px;
}
.btn:active {
  transform: translateY(1px);
}

/* ===== header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1040;
  background: rgba(8, 18, 33, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(45, 227, 200, 0.14);
}
.site-header::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(45,227,200,.5), transparent);
}
.navbar { min-height: 78px; padding: 10px 0; }
.navbar-brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: #fff;
  font-size: 1.28rem;
  font-weight: 900;
  letter-spacing: .02em;
}
.navbar-brand:hover { color: #fff; }
.navbar-brand i {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 11px;
  background: linear-gradient(135deg, var(--aqua), var(--blue));
  color: #07142A;
  font-size: 1rem;
  box-shadow: 0 0 18px rgba(45,227,200,.4);
}
.navbar-nav { gap: 4px; }
.navbar .nav-link {
  color: var(--muted);
  font-weight: 500;
  font-size: 15px;
  padding: 9px 18px !important;
  border-radius: 999px;
  position: relative;
  letter-spacing: .02em;
}
.navbar .nav-link:hover { color: #fff; background: rgba(255,255,255,.06); }
.navbar .nav-link.active {
  color: #fff;
  background: rgba(45,227,200,.1);
  box-shadow: inset 0 0 0 1px rgba(45,227,200,.25);
}
.navbar .nav-link.active::after {
  content: "";
  position: absolute;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--aqua);
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  box-shadow: 0 0 10px var(--aqua);
}
.nav-cta {
  background: linear-gradient(135deg, rgba(45,227,200,.15), rgba(91,127,255,.18));
  border: 1px solid rgba(45,227,200,.55);
  color: var(--aqua);
  border-radius: 999px;
  padding: 10px 22px;
  font-weight: 700;
  font-size: 15px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  backdrop-filter: blur(6px);
  box-shadow: 0 0 16px rgba(45,227,200,.1);
}
.nav-cta:hover {
  background: linear-gradient(135deg, var(--aqua), #4F91FF);
  color: #061528;
  border-color: rgba(45,227,200,.9);
  box-shadow: 0 0 24px rgba(45,227,200,.35);
  transform: translateY(-1px);
}

.navbar-toggler {
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 10px;
  padding: 6px 10px;
  transition: all .25s ease;
}
.navbar-toggler:focus { box-shadow: 0 0 0 3px rgba(45,227,200,.25); }
.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(234,242,255,.85)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* ===== 文章头部横幅 ===== */
.article-banner {
  position: relative;
  padding: 74px 0 140px;
  background-size: cover;
  background-position: center 25%;
  overflow: hidden;
}
.article-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 80% 20%, rgba(45,227,200,.16), transparent 45%),
    linear-gradient(180deg, rgba(7,17,32,.86), rgba(10,21,38,.42) 45%, rgba(10,21,38,.98));
  z-index: 1;
}
.article-banner .container { position: relative; z-index: 2; }

.breadcrumb-list {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 20px;
}
.breadcrumb-list .bc-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #C4D4EC;
}
.breadcrumb-list .bc-link:hover { color: var(--aqua); }
.breadcrumb-list .bc-sep { color: rgba(255,255,255,.32); font-size: 12px; }
.breadcrumb-list .bc-current { color: var(--aqua); }
.breadcrumb-list i { font-size: 12px; color: var(--aqua); }

.article-title {
  font-size: clamp(2rem, 4.5vw, 3.4rem);
  font-weight: 900;
  line-height: 1.25;
  color: #fff;
  max-width: 900px;
  margin-bottom: 22px;
  letter-spacing: .02em;
  text-shadow: 0 4px 30px rgba(0,0,0,.3);
}

.article-meta-line {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  align-items: center;
  color: #C7DAF2;
}
.article-meta-line .meta-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 999px;
  padding: 6px 15px;
  font-size: 13px;
  backdrop-filter: blur(5px);
}
.article-meta-line .meta-item i { color: var(--aqua); font-size: 13px; }
.article-meta-line .meta-cat {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border-radius: 999px;
  background: linear-gradient(135deg, rgba(91,127,255,.24), rgba(45,227,200,.2));
  border: 1px solid rgba(91,127,255,.45);
  padding: 6px 16px;
  font-weight: 600;
  color: #D7E8FF;
}
.article-meta-line .meta-cat i { color: #B7C8FF; }

/* ===== 正文阅读区 ===== */
.article-read-section { position: relative; padding: 0 0 80px; }
.article-read-card {
  position: relative;
  z-index: 5;
  margin-top: -72px;
  background: rgba(13, 27, 48, 0.86);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 22px;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(10px);
  padding: clamp(1.6rem, 4vw, 3.8rem);
}
.article-read-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 8%;
  right: 8%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(45,227,200,.7), transparent);
}

.article-content {
  max-width: 820px;
  margin: 0 auto;
  font-size: 17px;
  line-height: 2;
  color: #D8E5F7;
  word-break: break-word;
}
.article-content > *:first-child { margin-top: 0; }
.article-content p { margin: 0 0 1.7em; }
.article-content h2 {
  font-size: 1.65rem;
  font-weight: 800;
  color: #fff;
  margin: 2.2em 0 .9em;
  padding-left: 16px;
  border-left: 4px solid var(--aqua);
  line-height: 1.4;
}
.article-content h3 {
  font-size: 1.28rem;
  font-weight: 700;
  color: #F2FAFF;
  margin: 1.8em 0 .7em;
}
.article-content a { color: var(--aqua); border-bottom: 1px solid rgba(45,227,200,.3); }
.article-content a:hover { color: #7FF0DF; border-color: var(--aqua); }
.article-content blockquote {
  margin: 2em 0;
  padding: 20px 26px;
  background: rgba(45,227,200,.06);
  border-left: 3px solid var(--aqua);
  border-radius: 0 12px 12px 0;
  color: #C6EAF2;
  font-size: 16px;
}
.article-content ul, .article-content ol { padding-left: 1.3em; margin: 0 0 1.7em; }
.article-content li { margin-bottom: .45em; }
.article-content ul li::marker { color: var(--aqua); }
.article-content img {
  width: auto;
  max-width: 100%;
  height: auto;
  border-radius: 14px;
  margin: 2em auto;
  display: block;
  border: 1px solid rgba(255,255,255,.12);
  box-shadow: 0 20px 45px rgba(0,0,0,.3);
}
.article-content figure { margin: 2em 0; text-align: center; }
.article-content figcaption { color: var(--muted); font-size: 13px; margin-top: 10px; }
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.8em 0;
  background: rgba(255,255,255,.05);
  border-radius: 12px;
  overflow: hidden;
}
.article-content table th, .article-content table td {
  padding: 14px 16px;
  border-bottom: 1px solid rgba(255,255,255,.1);
  text-align: left;
  vertical-align: middle;
}
.article-content table th { background: rgba(91,127,255,.13); color: #fff; font-weight: 600; }
.article-content table tr:last-child td { border-bottom: none; }

/* 文章信息落款 */
.article-end-meta {
  max-width: 820px;
  margin: 40px auto 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 24px;
  padding-top: 26px;
  border-top: 1px solid rgba(255,255,255,.1);
}
.article-end-meta .end-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,.06);
  border-radius: 999px;
  padding: 5px 13px;
  font-size: 13px;
  color: var(--muted);
}
.article-end-meta .end-tag i { color: var(--aqua); }

/* 返回栏目 */
.article-back-row {
  max-width: 820px;
  margin: 22px auto 0;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: space-between;
}
.btn-back {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 10px;
  padding: 10px 20px;
  font-weight: 600;
  color: #C7DBF5;
}
.btn-back:hover {
  background: rgba(45,227,200,.1);
  border-color: rgba(45,227,200,.5);
  color: var(--aqua);
}

/* 未找到 */
.missing-box {
  text-align: center;
  padding: 90px 20px 110px;
}
.missing-box i {
  font-size: 3.6rem;
  color: rgba(45,227,200,.6);
  display: block;
  margin-bottom: 20px;
}
.missing-box h2 {
  font-size: 1.8rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 14px;
}
.missing-box p { color: var(--muted); max-width: 460px; margin: 0 auto 26px; }

/* ===== 文章后栏目入口 ===== */
.section-cat-guide { padding: 70px 0 80px; }
.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--aqua);
  background: rgba(45,227,200,.1);
  border: 1px solid rgba(45,227,200,.2);
  padding: 5px 14px;
  border-radius: 999px;
  margin-bottom: 16px;
}
.section-title {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 800;
  color: #fff;
  line-height: 1.3;
  margin-bottom: 14px;
}
.section-desc { color: var(--muted); font-size: 16px; line-height: 1.8; max-width: 640px; }

.article-cat-card {
  height: 100%;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 18px;
  overflow: hidden;
  transition: all .3s ease;
  display: flex;
  flex-direction: column;
}
.article-cat-card:hover {
  transform: translateY(-5px);
  background: rgba(255,255,255,.09);
  border-color: rgba(45,227,200,.45);
  box-shadow: 0 18px 45px rgba(0,0,0,.35);
}
.article-cat-card .cover {
  aspect-ratio: 16/9;
  overflow: hidden;
  position: relative;
  background: var(--bg-alt);
}
.article-cat-card .cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .6s ease;
}
.article-cat-card:hover .cover img { transform: scale(1.05); }
.article-cat-card .cat-card-body { padding: 22px 22px 24px; flex: 1; display: flex; flex-direction: column; }
.article-cat-card .cat-label {
  display: inline-flex;
  align-items: center;
  width: max-content;
  gap: 6px;
  font-size: 13px;
  color: var(--aqua);
  background: rgba(45,227,200,.1);
  border-radius: 999px;
  padding: 4px 12px;
  margin-bottom: 12px;
}
.article-cat-card h3 { font-size: 1.25rem; font-weight: 700; color: #fff; margin-bottom: 8px; }
.article-cat-card p { font-size: 14px; color: var(--muted); line-height: 1.8; flex: 1; }
.article-cat-card .btn-go {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-weight: 600;
  font-size: 14px;
  color: #fff;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.15);
  border-radius: 8px;
  padding: 7px 16px;
  margin-top: 14px;
}
.article-cat-card .btn-go i { color: var(--aqua); transition: transform .25s ease; }
.article-cat-card .btn-go:hover {
  background: linear-gradient(135deg, var(--aqua), #5B7FFF);
  color: #07111F;
  border-color: transparent;
}
.article-cat-card .btn-go:hover i { color: #07111F; transform: translateX(3px); }

/* ===== CTA块 ===== */
.article-cta-section { padding: 40px 0 90px; }
.cta-box {
  position: relative;
  background: linear-gradient(135deg, rgba(91,127,255,.14), rgba(45,227,200,.11));
  border: 1px solid rgba(45,227,200,.4);
  border-radius: 22px;
  padding: clamp(2rem, 5vw, 4rem);
  text-align: center;
  overflow: hidden;
}
.cta-box::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 75% 0%, rgba(91,127,255,.2), transparent 45%),
    radial-gradient(circle at 15% 100%, rgba(45,227,200,.15), transparent 40%);
  pointer-events: none;
}
.cta-box h2 { position: relative; font-size: clamp(1.7rem, 3.4vw, 2.6rem); font-weight: 900; color: #fff; }
.cta-box p { position: relative; color: #C2D6EE; max-width: 650px; margin: 16px auto 30px; }
.cta-box .cta-btn-grp { position: relative; }
.cta-box .btn-main { min-width: 160px; }

/* ===== FAQ ===== */
.faq-section { padding: 0 0 90px; }
.faq-card {
  max-width: 860px;
  margin: 0 auto;
  background: rgba(255,255,255,.045);
  border: 1px solid rgba(255,255,255,.11);
  border-radius: 14px;
  overflow: hidden;
  transition: background .25s ease, border-color .25s ease;
}
.faq-card + .faq-card { margin-top: 14px; }
.faq-card:hover { border-color: rgba(45,227,200,.4); }
.faq-card .accordion-button {
  background: transparent;
  color: #ffffff;
  font-weight: 600;
  font-size: 16px;
  line-height: 1.6;
  box-shadow: none;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  gap: 14px;
}
.faq-card .accordion-button::after { display: none; }
.faq-card .accordion-button:not(.collapsed) {
  color: #fff;
  background: rgba(45,227,200,.07);
  box-shadow: none;
}
.faq-icon {
  flex: 0 0 38px;
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: rgba(45,227,200,.13);
  color: var(--aqua);
  font-size: 14px;
  border: 1px solid rgba(45,227,200,.3);
}
.faq-card .accordion-button:not(.collapsed) .faq-icon {
  background: rgba(45,227,200,.25);
}
.faq-card .accordion-button .faq-toggle {
  margin-left: auto;
  color: var(--aqua);
  font-size: 14px;
  transition: transform .35s ease;
}
.faq-card .accordion-button.collapsed .faq-toggle { transform: rotate(0deg); }
.faq-card .accordion-button:not(.collapsed) .faq-toggle { transform: rotate(45deg); }
.faq-body { background: transparent; color: var(--muted); }
.faq-body .accordion-body { padding: 0 26px 24px 66px; color: #C3D3E9; line-height: 1.95; }

/* ===== footer ===== */
.footer {
  background: #060D19;
  border-top: 1px solid rgba(45,227,200,.3);
  padding: 66px 0 0;
  position: relative;
}
.footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 620px;
  max-width: 80%;
  height: 1px;
  background: radial-gradient(ellipse at center, rgba(45,227,200,.7), transparent 70%);
}
.footer h5 {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 18px;
  letter-spacing: .05em;
}
.footer p, .footer .text-muted { color: #7D91AF !important; }
.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-size: 18px;
  font-weight: 800;
  margin-bottom: 14px;
}
.footer-brand i {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--aqua), var(--blue));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #060D19;
  font-size: 15px;
  box-shadow: 0 0 16px rgba(45,227,200,.35);
}
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { color: #9FB2CF; font-size: 14.5px; display: inline-flex; align-items: center; gap: 7px; }
.footer-links a::before {
  content: "";
  width: 4px;
  height: 4px;
  background: rgba(45,227,200,.7);
  border-radius: 50%;
  flex: 0 0 auto;
  transition: all .25s ease;
}
.footer-links a:hover { color: var(--aqua); transform: translateX(3px); }
.footer-links a:hover::before { box-shadow: 0 0 10px var(--aqua); }
.footer-contact li { display: flex; align-items: flex-start; gap: 12px; margin-bottom: 13px; color: #9FB2CF; font-size: 14.5px; }
.footer-contact li i { color: var(--aqua); font-size: 14px; margin-top: 4px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  margin-top: 20px;
  padding: 18px 0;
  color: #637995;
  font-size: 13px;
}
.footer-bottom a { color: #637995; }
.footer-bottom a:hover { color: var(--aqua); }

/* reveal */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .7s ease, transform .7s ease; }
.reveal.show { opacity: 1; transform: none; }

/* bootstrap custom overrides */
.accordion { --bs-accordion-btn-focus-border-color: transparent; --bs-accordion-btn-focus-box-shadow: none; }

/* ===== 响应式 ===== */
@media (max-width: 991.98px) {
  .navbar-collapse {
    position: absolute;
    left: 12px;
    right: 12px;
    top: 100%;
    background: rgba(8,18,33,.97);
    border: 1px solid rgba(45,227,200,.25);
    border-radius: 16px;
    padding: 18px 16px;
    margin-top: 6px;
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(16px);
    z-index: 1050;
  }
  .navbar-nav { flex-direction: column; gap: 6px; }
  .navbar-nav .nav-link { width: 100%; border-radius: 10px; }
  .navbar .nav-item { width: 100%; }
  .nav-cta { margin-top: 12px; justify-content: center; width: 100%; }
  .article-banner { padding: 60px 0 130px; }
  .article-title { font-size: clamp(1.7rem, 6vw, 2.6rem); }
  .article-meta-line .meta-item { padding: 5px 12px; }
  .article-read-card { margin-top: -60px; }
  .article-cat-card { margin-bottom: 8px; }
  .section-cat-guide, .article-cta-section, .faq-section { padding-top: 48px; padding-bottom: 60px; }
  .footer { padding-top: 46px; }
}

@media (max-width: 767px) {
  .navbar { min-height: 68px; }
  .navbar-brand { font-size: 1.05rem; }
  .navbar-brand span { max-width: 180px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .navbar-brand i { width: 34px; height: 34px; font-size: 14px; }
  .article-banner { padding: 48px 0 120px; }
  .article-title { font-size: 1.65rem; line-height: 1.4; }
  .breadcrumb-list { margin-bottom: 14px; }
  .article-meta-line { gap: 8px 10px; }
  .article-meta-line .meta-item { padding: 4px 10px; font-size: 12px; }
  .article-meta-line .meta-cat { padding: 4px 12px; }
  .article-read-section { padding-bottom: 40px; }
  .article-read-card {
    margin-top: -42px;
    border-radius: 16px;
    padding: 1.35rem 1.15rem 1.7rem;
  }
  .article-content {
    font-size: 16px;
    line-height: 1.95;
  }
  .article-content h2 { font-size: 1.36rem; padding-left: 13px; }
  .article-content h3 { font-size: 1.14rem; }
  .article-content blockquote { padding: 16px 18px; }
  .article-end-meta { margin-top: 24px; flex-direction: column; align-items: flex-start; }
  .article-back-row { flex-direction: column; gap: 10px; }
  .btn-back { width: 100%; justify-content: center; text-align: center; }
  .cta-box { padding: 2.2rem 1.3rem; }
  .cta-box .btn-main { width: 100%; }
  .faq-card .accordion-button { padding: 18px 14px; font-size: 15px; }
  .faq-body .accordion-body { padding: 0 16px 20px 16px; }
  .article-cat-card .cat-card-body { padding: 18px; }
  .footer h5 { margin-bottom: 12px; }
  .footer-links { margin-bottom: 22px; }
}

@media (max-width: 520px) {
  .article-title { font-size: 1.42rem; }
  .navbar-brand span { max-width: 135px; }
  .article-meta-line .meta-cat { font-size: 13px; }
  .section-title { font-size: 1.45rem; }
  .article-cat-card h3 { font-size: 1.1rem; }
}

/* roulang page: category2 */
:root {
        --main-bg: #0A1526;
        --navy: #0B1B34;
        --navy-deep: #081221;
        --teal: #2DE3C8;
        --blue: #5B7FFF;
        --light-blue: #B9EBFF;
        --orange: #FF8A5C;
        --text-main: #EAF2FF;
        --text-muted: #A6B7D4;
        --line: rgba(255, 255, 255, .12);
        --line-soft: rgba(255, 255, 255, .08);
        --glass-bg: rgba(255, 255, 255, .055);
        --glass-bg-2: rgba(255, 255, 255, .035);
        --radius-lg: 16px;
        --radius-md: 10px;
        --shadow-card: 0 20px 60px rgba(0, 25, 60, .45);
        --shadow-glow: 0 0 0 1px rgba(45, 227, 200, .45), 0 12px 40px rgba(45, 227, 200, .25);
        --space-section: clamp(72px, 8vw, 120px);
        --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, "Segoe UI", sans-serif;
    }

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

    html {
        scroll-behavior: smooth;
    }

    body {
        margin: 0;
        font-family: var(--font-sans);
        background: var(--main-bg);
        color: var(--text-main);
        line-height: 1.8;
        font-size: 16px;
        -webkit-font-smoothing: antialiased;
        overflow-x: hidden;
    }

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

    a {
        color: inherit;
        text-decoration: none;
        transition: color .25s ease;
    }

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

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

    ::selection {
        background: rgba(45, 227, 200, .25);
        color: #fff;
    }

    .container {
        max-width: 1280px;
    }

    .site-header {
        position: sticky;
        top: 0;
        z-index: 1040;
        background: rgba(11, 27, 52, .78);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        border-bottom: 1px solid rgba(255, 255, 255, .08);
    }

    .navbar {
        padding: 0 0;
        min-height: 76px;
    }

    .navbar-brand {
        display: inline-flex;
        align-items: center;
        gap: 12px;
        max-width: 100%;
        padding: 0;
        font-size: 1.18rem;
        font-weight: 800;
        color: var(--text-main);
        letter-spacing: .01em;
    }

    .navbar-brand i {
        width: 38px;
        height: 38px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        border-radius: 10px;
        background: linear-gradient(135deg, var(--teal), var(--blue));
        color: #07111F;
        font-size: 1.05rem;
        box-shadow: 0 8px 24px rgba(45, 227, 200, .3);
        flex: none;
    }

    .navbar-brand span {
        line-height: 1.2;
        background: linear-gradient(120deg, #fff, #B9EBFF);
        -webkit-background-clip: text;
        background-clip: text;
        -webkit-text-fill-color: transparent;
    }

    .navbar .container {
        align-items: center;
    }

    .navbar-nav {
        gap: 2px;
        align-items: center;
    }

    .site-header .nav-link {
        position: relative;
        display: inline-flex;
        align-items: center;
        padding: .5rem .8rem !important;
        font-size: .96rem;
        font-weight: 500;
        color: var(--text-muted);
        border-radius: 8px;
        transition: background .25s ease, color .25s ease;
    }

    .site-header .nav-link:hover,
    .site-header .nav-link:focus-visible {
        color: #fff;
        background: rgba(255, 255, 255, .05);
        outline: none;
    }

    .site-header .nav-link.active {
        color: var(--teal);
        background: rgba(45, 227, 200, .1);
        box-shadow: inset 0 0 0 1px rgba(45, 227, 200, .25);
    }

    .nav-cta.btn {
        position: relative;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        height: 46px;
        min-width: 138px;
        padding: 0 1.2rem;
        border: none;
        border-radius: 10px;
        background: linear-gradient(135deg, rgba(45, 227, 200, .18), rgba(91, 127, 255, .18));
        color: #fff;
        font-weight: 700;
        font-size: .96rem;
        box-shadow: inset 0 0 0 1px rgba(91, 127, 255, .5), 0 6px 20px rgba(45, 227, 200, .18);
        transition: transform .25s ease, box-shadow .25s ease, background .25s ease;
    }

    .nav-cta.btn:hover,
    .nav-cta.btn:focus-visible,
    .nav-cta.btn:focus {
        color: #fff;
        background: linear-gradient(135deg, rgba(45, 227, 200, .28), rgba(91, 127, 255, .28));
        box-shadow: inset 0 0 0 1px rgba(45, 227, 200, .7), 0 8px 30px rgba(45, 227, 200, .35);
        transform: translateY(-2px);
        outline: none;
    }

    .nav-cta.btn:active {
        transform: translateY(0);
        box-shadow: inset 0 0 0 1px rgba(45, 227, 200, .7), 0 2px 10px rgba(45, 227, 200, .2);
    }

    .navbar-toggler {
        border: 1px solid rgba(255, 255, 255, .18);
        border-radius: 8px;
        width: 46px;
        height: 40px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }

    .navbar-toggler:focus {
        box-shadow: 0 0 0 3px rgba(45, 227, 200, .4);
    }

    .navbar-toggler-icon {
        width: 1.4em;
        height: 1.4em;
        background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3E%3Cpath stroke='rgba(234,242,255,0.92)' stroke-linecap='round' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E");
    }

    .page-hero {
        position: relative;
        padding: 84px 0 78px;
        background:
            linear-gradient(105deg, rgba(8, 18, 33, .96) 8%, rgba(11, 27, 52, .82) 48%, rgba(10, 21, 38, .68) 100%),
            url('/assets/images/backpic/back-2.webp') no-repeat center center / cover;
        border-bottom: 1px solid rgba(91, 127, 255, .2);
    }

    .page-hero::after {
        content: "";
        position: absolute;
        inset: auto 0 0 0;
        height: 120px;
        background: linear-gradient(to bottom, transparent, var(--main-bg));
        pointer-events: none;
    }

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

    .breadcrumb-nav {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        gap: 6px;
        font-size: .9rem;
        color: var(--text-muted);
        border-radius: 6px;
        margin-bottom: 26px;
    }

    .breadcrumb-nav a {
        color: var(--text-muted);
    }

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

    .breadcrumb-nav i {
        color: rgba(255, 255, 255, .35);
    }

    .eyebrow {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 4px 12px;
        background: rgba(45, 227, 200, .1);
        border: 1px solid rgba(45, 227, 200, .22);
        color: var(--teal);
        font-size: .86rem;
        font-weight: 600;
        border-radius: 30px;
        margin-bottom: 20px;
    }

    .page-hero h1 {
        margin: 0 0 9px;
        max-width: 780px;
        font-size: clamp(2rem, 4.2vw, 3.3rem);
        font-weight: 900;
        color: #fff;
        line-height: 1.25;
        letter-spacing: .02em;
    }

    .page-hero .lead {
        max-width: 680px;
        font-size: 1.05rem;
        line-height: 1.95;
        color: rgba(234, 242, 255, .82);
        margin: 14px 0 0;
    }

    .hero-actions {
        display: flex;
        flex-wrap: wrap;
        gap: 12px;
        margin-top: 30px;
    }

    .btn-glow {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        min-height: 48px;
        padding: .55rem 1.55rem;
        background: linear-gradient(135deg, var(--teal), var(--blue));
        color: #07111F;
        border: none;
        border-radius: 10px;
        font-weight: 700;
        box-shadow: 0 10px 30px rgba(45, 227, 200, .22);
        transition: transform .25s ease, box-shadow .25s ease, filter .25s ease;
    }

    .btn-glow:hover,
    .btn-glow:focus-visible,
    .btn-glow:focus {
        color: #07111F;
        box-shadow: 0 12px 40px rgba(45, 227, 200, .4);
        transform: translateY(-2px);
        outline: none;
    }

    .btn-glow:active {
        transform: translateY(0);
        box-shadow: 0 4px 15px rgba(45, 227, 200, .25);
    }

    .btn-ghost {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        min-height: 48px;
        padding: .55rem 1.4rem;
        background: rgba(255, 255, 255, .06);
        color: var(--text-main);
        border: 1px solid var(--line);
        border-radius: 10px;
        font-weight: 600;
        transition: border-color .25s ease, background .25s ease, transform .25s ease, box-shadow .25s ease;
    }

    .btn-ghost:hover,
    .btn-ghost:focus-visible,
    .btn-ghost:focus {
        color: var(--teal);
        border-color: rgba(45, 227, 200, .6);
        background: rgba(45, 227, 200, .08);
        box-shadow: 0 0 0 3px rgba(45, 227, 200, .16);
        outline: none;
        transform: translateY(-2px);
    }

    .btn-ghost:active {
        transform: translateY(0);
    }

    .hero-panel {
        position: relative;
        background: linear-gradient(150deg, rgba(255, 255, 255, .1), rgba(255, 255, 255, .03));
        border: 1px solid rgba(255, 255, 255, .16);
        border-radius: 18px;
        padding: 26px;
        color: var(--text-main);
        box-shadow: var(--shadow-card);
        backdrop-filter: blur(10px);
        overflow: hidden;
    }

    .hero-panel::before {
        content: "";
        position: absolute;
        top: 0;
        left: 20px;
        right: 20px;
        height: 1px;
        background: linear-gradient(90deg, transparent, rgba(255, 255, 255, .6), transparent);
    }

    .hero-panel .status-line {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
        font-size: .94rem;
        color: var(--text-muted);
        margin-bottom: 16px;
    }

    .hero-panel .dot-online {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        color: var(--teal);
        font-weight: 600;
        font-size: .86rem;
    }

    .hero-panel .dot-online i {
        font-size: .55rem;
        color: var(--teal);
        filter: drop-shadow(0 0 6px rgba(45, 227, 200, .8));
    }

    .hero-panel h3 {
        font-size: 1.05rem;
        font-weight: 700;
        margin: 0 0 13px;
    }

    .hero-panel ul {
        list-style: none;
        margin: 0;
        padding: 0;
        display: grid;
        gap: 12px;
    }

    .hero-panel li {
        display: flex;
        align-items: center;
        gap: 12px;
        padding: 11px 14px;
        background: rgba(255, 255, 255, .045);
        border: 1px solid rgba(255, 255, 255, .08);
        border-radius: 10px;
        font-size: .92rem;
        line-height: 1.6;
    }

    .hero-panel li i {
        width: 34px;
        height: 34px;
        flex: none;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        border-radius: 8px;
        background: rgba(45, 227, 200, .12);
        color: var(--teal);
    }

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

    .section-tight {
        padding-bottom: 0;
    }

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

    .section-head h2 {
        font-size: clamp(1.7rem, 3vw, 2.35rem);
        font-weight: 800;
        color: #fff;
        margin: 0 0 10px;
        line-height: 1.35;
    }

    .section-head h2 span {
        color: var(--teal);
    }

    .section-head p {
        color: var(--text-muted);
        max-width: 780px;
        font-size: 1rem;
    }

    .text-white {
        color: #fff;
    }

    .badge-accent {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 5px 12px;
        background: rgba(91, 127, 255, .12);
        border: 1px solid rgba(91, 127, 255, .35);
        color: var(--light-blue);
        border-radius: 30px;
        font-size: .84rem;
        font-weight: 600;
        margin-bottom: 12px;
    }

    .service-grid .card {
        background: linear-gradient(150deg, rgba(255, 255, 255, .07), rgba(255, 255, 255, .025));
        border: 1px solid rgba(255, 255, 255, .1);
        border-radius: var(--radius-lg);
        padding: 26px 22px;
        height: 100%;
        color: var(--text-main);
        transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
        position: relative;
        overflow: hidden;
    }

    .service-grid .card::before {
        content: "";
        position: absolute;
        left: 0;
        top: 20px;
        bottom: 20px;
        width: 3px;
        border-radius: 0 3px 3px 0;
        background: linear-gradient(to bottom, var(--teal), var(--blue));
        opacity: .8;
    }

    .service-grid .card:hover,
    .service-grid .card:focus-within {
        border-color: rgba(91, 127, 255, .45);
        transform: translateY(-6px);
        box-shadow: 0 18px 50px rgba(0, 25, 60, .4);
    }

    .service-grid .icon-box {
        width: 48px;
        height: 48px;
        border-radius: 12px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        font-size: 1.2rem;
        background: linear-gradient(135deg, rgba(45, 227, 200, .2), rgba(91, 127, 255, .2));
        color: var(--teal);
        margin-bottom: 18px;
        box-shadow: inset 0 0 0 1px rgba(45, 227, 200, .25);
    }

    .service-grid .card h3 {
        font-size: 1.16rem;
        font-weight: 700;
        color: #fff;
        margin-bottom: 8px;
    }

    .service-grid .card p {
        color: var(--text-muted);
        font-size: .94rem;
        margin: 0;
        line-height: 1.85;
    }

    .process-section {
        background: linear-gradient(180deg, transparent, rgba(11, 27, 52, .45), transparent);
        border-top: 1px solid rgba(255, 255, 255, .04);
        border-bottom: 1px solid rgba(255, 255, 255, .04);
    }

    .process-list {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 20px;
        counter-reset: step;
        margin-top: 30px;
    }

    .process-item {
        position: relative;
        counter-increment: step;
        background: rgba(255, 255, 255, .045);
        border: 1px solid rgba(255, 255, 255, .1);
        border-radius: 16px;
        padding: 28px 24px 24px;
        min-height: 230px;
        backdrop-filter: blur(6px);
    }

    .process-item .step-no {
        position: absolute;
        top: -15px;
        left: 20px;
        width: 34px;
        height: 34px;
        border-radius: 10px;
        background: linear-gradient(135deg, var(--teal), var(--blue));
        color: #07111F;
        font-weight: 800;
        font-size: 1rem;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        box-shadow: 0 6px 18px rgba(45, 227, 200, .4);
    }

    .process-item::before {
        content: "";
        position: absolute;
        top: 29px;
        right: -14px;
        width: 26px;
        height: 2px;
        background: linear-gradient(90deg, rgba(45, 227, 200, .35), transparent);
    }

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

    .process-item i {
        font-size: 1.6rem;
        color: var(--teal);
        margin: 18px 0 8px;
    }

    .process-item h3 {
        font-size: 1.08rem;
        color: #fff;
        font-weight: 700;
        margin: 0 0 7px;
    }

    .process-item p {
        color: var(--text-muted);
        font-size: .94rem;
        margin: 0;
        line-height: 1.8;
    }

    .split-block {
        display: grid;
        grid-template-columns: 1.05fr .95fr;
        gap: 52px;
        align-items: center;
    }

    .media-frame {
        position: relative;
        border-radius: 18px;
        overflow: hidden;
        border: 1px solid rgba(255, 255, 255, .16);
        box-shadow: var(--shadow-card);
        aspect-ratio: 16 / 11;
        background: #111d30;
    }

    .media-frame img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        display: block;
    }

    .media-frame::after {
        content: "";
        position: absolute;
        inset: 0;
        background: linear-gradient(180deg, rgba(8, 18, 33, 0), rgba(8, 18, 33, .42));
        pointer-events: none;
    }

    .media-link {
        position: absolute;
        left: 50%;
        bottom: 16px;
        transform: translateX(-50%);
        z-index: 2;
        display: inline-flex;
        align-items: center;
        gap: 8px;
        min-height: 40px;
        padding: .3rem 1rem;
        background: rgba(8, 18, 33, .75);
        color: #fff;
        backdrop-filter: blur(8px);
        border: 1px solid rgba(255, 255, 255, .2);
        border-radius: 30px;
        font-size: .88rem;
        text-decoration: none;
        box-shadow: 0 8px 22px rgba(0, 0, 0, .3);
    }

    .media-link:hover {
        color: var(--teal);
        border-color: rgba(45, 227, 200, .6);
    }

    .split-block .content-list {
        list-style: none;
        margin: 0;
        padding: 0;
        display: grid;
        gap: 15px;
    }

    .content-list li {
        display: flex;
        gap: 13px;
        align-items: flex-start;
    }

    .content-list li > i {
        width: 32px;
        height: 32px;
        flex: none;
        font-size: .86rem;
        margin-top: 3px;
        color: var(--teal);
        border-radius: 8px;
        background: rgba(45, 227, 200, .1);
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }

    .content-list li strong {
        display: block;
        color: #fff;
        font-weight: 600;
        font-size: 1rem;
    }

    .content-list li span {
        color: var(--text-muted);
        font-size: .95rem;
        display: block;
        line-height: 1.85;
    }

    .channel-table-wrapper {
        position: relative;
        overflow: hidden;
        background: linear-gradient(150deg, rgba(255, 255, 255, .06), rgba(255, 255, 255, .02));
        border: 1px solid rgba(255, 255, 255, .1);
        border-radius: 18px;
        box-shadow: var(--shadow-card);
        backdrop-filter: blur(6px);
        padding: 0;
        overflow-x: auto;
    }

    .channel-table {
        width: 100%;
        min-width: 850px;
        border-collapse: collapse;
        font-size: .94rem;
    }

    .channel-table th {
        padding: 18px 20px;
        text-align: left;
        background: rgba(8, 18, 33, .45);
        color: var(--light-blue);
        font-size: .94rem;
        font-weight: 700;
        border-bottom: 1px solid rgba(255, 255, 255, .12);
    }

    .channel-table td {
        padding: 18px 20px;
        border-bottom: 1px solid rgba(255, 255, 255, .07);
        color: var(--text-muted);
        line-height: 1.75;
        vertical-align: middle;
    }

    .channel-table tr:last-child td {
        border-bottom: none;
    }

    .channel-table tr {
        transition: background .2s ease;
    }

    .channel-table tbody tr:hover {
        background: rgba(45, 227, 200, .04);
    }

    .channel-table td:first-child {
        font-weight: 600;
        color: #fff;
    }

    .table-note {
        font-size: .85rem;
        margin-top: 14px;
        color: var(--text-muted);
    }

    .form-panel {
        background:
            radial-gradient(circle at 85% 10%, rgba(91, 127, 255, .12), transparent 38%),
            linear-gradient(145deg, rgba(255, 255, 255, .08), rgba(255, 255, 255, .02));
        border: 1px solid rgba(255, 255, 255, .14);
        border-radius: 22px;
        box-shadow: var(--shadow-card);
        overflow: hidden;
        backdrop-filter: blur(8px);
    }

    .form-panel .form-main {
        padding: clamp(28px, 5vw, 54px);
    }

    .form-panel h2 {
        font-size: clamp(1.55rem, 2.6vw, 2.1rem);
        font-weight: 800;
        margin: 0 0 8px;
    }

    .form-panel .form-sub {
        color: var(--text-muted);
        margin-bottom: 32px;
        font-size: .98rem;
    }

    .loginForm .form-label {
        font-size: .9rem;
        color: var(--text-main);
        font-weight: 500;
        margin-bottom: 6px;
    }

    .loginForm .form-control,
    .loginForm .form-select {
        background-color: rgba(13, 27, 48, .85);
        border: 1px solid rgba(255, 255, 255, .12);
        color: #fff;
        min-height: 48px;
        border-radius: 10px;
        padding: .65rem 1rem;
        transition: border-color .25s ease, box-shadow .25s ease;
    }

    .loginForm .form-control:focus,
    .loginForm .form-select:focus {
        background-color: rgba(13, 27, 48, .95);
        border-color: var(--teal);
        box-shadow: 0 0 0 4px rgba(45, 227, 200, .16);
        color: #fff;
    }

    .loginForm .form-control::placeholder {
        color: rgba(166, 183, 212, .55);
    }

    .loginForm .form-select option {
        background: #0B1B34;
        color: #fff;
    }

    .loginForm textarea.form-control {
        min-height: 136px;
        resize: vertical;
    }

    .form-info {
        display: flex;
        gap: 14px;
        align-items: flex-start;
        background: rgba(255, 255, 255, .04);
        border: 1px solid rgba(255, 255, 255, .08);
        border-radius: 12px;
        padding: 16px;
        margin: 18px 0 22px;
        color: var(--text-muted);
        font-size: .9rem;
        line-height: 1.8;
    }

    .form-info i {
        color: var(--orange);
        margin-top: 5px;
    }

    .form-submit-btn {
        width: 100%;
        min-height: 52px;
        border-radius: 10px;
        border: none;
        background: linear-gradient(135deg, var(--teal), var(--blue));
        color: #07111F;
        font-weight: 700;
        font-size: 1.02rem;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 10px;
        box-shadow: 0 12px 34px rgba(45, 227, 200, .2);
        transition: transform .25s ease, box-shadow .25s ease;
    }

    .form-submit-btn:hover,
    .form-submit-btn:focus-visible,
    .form-submit-btn:focus {
        box-shadow: 0 14px 42px rgba(45, 227, 200, .4);
        transform: translateY(-2px);
        outline: none;
        color: #07111F;
    }

    .form-submit-btn:active {
        transform: translateY(0);
    }

    .faq-section {
        background: linear-gradient(180deg, transparent, rgba(11, 27, 52, .5), transparent);
    }

    .faq-accordion .accordion-item {
        background: transparent;
        border: none;
        margin-bottom: 14px;
    }

    .faq-accordion .accordion-button {
        background: linear-gradient(145deg, rgba(255, 255, 255, .065), rgba(255, 255, 255, .025));
        border: 1px solid rgba(255, 255, 255, .1);
        color: #fff;
        font-size: .98rem;
        font-weight: 600;
        line-height: 1.65;
        padding: 18px 22px;
        border-radius: 12px !important;
        box-shadow: none;
        transition: border-color .25s ease, background .25s ease;
    }

    .faq-accordion .accordion-button:hover,
    .faq-accordion .accordion-button:focus,
    .faq-accordion .accordion-button:not(.collapsed) {
        border-color: rgba(45, 227, 200, .34);
        background: linear-gradient(145deg, rgba(45, 227, 200, .08), rgba(255, 255, 255, .03));
        color: #fff;
        box-shadow: none;
    }

    .faq-accordion .accordion-button:focus-visible {
        box-shadow: 0 0 0 4px rgba(45, 227, 200, .2);
    }

    .faq-accordion .accordion-button:after {
        background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%232DE3C8'%3E%3Cpath d='M8 1a1 1 0 0 1 1 1v5h5a1 1 0 1 1 0 2H9v5a1 1 0 1 1-2 0V9H2a1 1 0 0 1 0-2h5V2a1 1 0 0 1 1-1z'/%3E%3C/svg%3E");
        transition: transform .25s ease;
    }

    .faq-accordion .accordion-button:not(.collapsed):after {
        background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23fff'%3E%3Cpath d='M2 8a1 1 0 0 1 1-1h10a1 1 0 1 1 0 2H3a1 1 0 0 1-1-1z'/%3E%3C/svg%3E");
    }

    .faq-accordion .accordion-body {
        padding: 16px 22px 22px;
        background: rgba(255, 255, 255, .045);
        border: 1px solid rgba(255, 255, 255, .1);
        border-top: 0;
        border-radius: 0 0 12px 12px;
        color: var(--text-muted);
        line-height: 1.95;
        font-size: .95rem;
    }

    .bottom-cta {
        padding-top: 60px;
        padding-bottom: 90px;
    }

    .bottom-cta .cta-card {
        position: relative;
        border-radius: 22px;
        padding: clamp(30px, 5vw, 60px);
        background:
            linear-gradient(135deg, rgba(11, 27, 52, .92), rgba(8, 18, 33, .86)),
            url('/assets/images/backpic/back-1.webp') no-repeat center center / cover;
        border: 1px solid rgba(91, 127, 255, .35);
        overflow: hidden;
        display: flex;
        align-items: center;
        gap: 28px;
        justify-content: space-between;
        flex-wrap: wrap;
        box-shadow: var(--shadow-card);
    }

    .bottom-cta .cta-card::before {
        content: "";
        position: absolute;
        right: 10%;
        top: -55%;
        width: 420px;
        height: 420px;
        background: radial-gradient(circle, rgba(45, 227, 200, .12), transparent 62%);
        pointer-events: none;
    }

    .bottom-cta h2 {
        font-size: clamp(1.6rem, 3vw, 2.4rem);
        font-weight: 800;
        margin: 0 0 8px;
    }

    .bottom-cta p {
        color: var(--text-muted);
        max-width: 600px;
        margin: 0;
    }

    .bottom-cta .btn-glow {
        min-width: 190px;
    }

    .footer {
        background: #081221;
        border-top: 1px solid rgba(45, 227, 200, .28);
        padding: 66px 0 0;
    }

    .footer-brand {
        display: flex;
        gap: 12px;
        align-items: center;
        font-size: 1.2rem;
        font-weight: 800;
        color: #fff;
        margin-bottom: 12px;
    }

    .footer-brand i {
        width: 38px;
        height: 38px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        border-radius: 10px;
        background: linear-gradient(135deg, var(--teal), var(--blue));
        color: #07111F;
        font-size: 1.1rem;
        box-shadow: 0 8px 24px rgba(45, 227, 200, .28);
    }

    .footer h5 {
        font-size: 1rem;
        font-weight: 700;
        color: #fff;
        margin-bottom: 18px;
    }

    .footer-links {
        display: grid;
        gap: 10px;
    }

    .footer-links a {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        color: var(--text-muted);
        font-size: .92rem;
        line-height: 1.8;
    }

    .footer-links a::before {
        content: "";
        width: 6px;
        height: 6px;
        background: var(--line-soft);
        border-radius: 50%;
        flex: none;
        transition: background .25s ease, box-shadow .25s ease;
    }

    .footer-links a:hover {
        color: var(--teal);
    }

    .footer-links a:hover::before {
        background: var(--teal);
        box-shadow: 0 0 8px rgba(45, 227, 200, .7);
    }

    .footer-contact {
        display: grid;
        gap: 13px;
        color: var(--text-muted);
        font-size: .92rem;
    }

    .footer-contact li {
        display: flex;
        align-items: center;
        gap: 11px;
    }

    .footer-contact i {
        color: var(--teal);
        min-width: 18px;
        text-align: center;
    }

    .footer-bottom {
        margin-top: 40px;
        border-top: 1px solid rgba(255, 255, 255, .06);
        padding: 18px 0 16px;
        font-size: .88rem;
        color: rgba(234, 242, 255, .6);
    }

    .footer-bottom a {
        color: rgba(234, 242, 255, .6);
    }

    .footer-bottom a:hover {
        color: var(--teal);
    }

    @media (max-width: 991.98px) {
        .navbar .container {
            padding-top: 10px;
            padding-bottom: 10px;
        }

        .navbar-collapse {
            padding-bottom: 14px;
        }

        .navbar-nav {
            align-items: stretch;
            gap: 2px;
            margin: 18px 0 14px;
        }

        .site-header .nav-link {
            justify-content: flex-start;
            padding: .65rem 1rem !important;
            border-radius: 8px;
        }

        .nav-cta.btn {
            width: 100%;
            margin: 4px 0 8px;
        }

        .page-hero {
            padding: 62px 0 50px;
        }

        .process-list {
            grid-template-columns: repeat(2, 1fr);
        }

        .process-item::before {
            display: none;
        }

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

        .bottom-cta .cta-card {
            gap: 22px;
        }
    }

    @media (max-width: 767.98px) {
        body {
            font-size: 15px;
        }

        .container {
            padding-left: 20px;
            padding-right: 20px;
        }

        .page-hero {
            padding: 46px 0 38px;
        }

        .page-hero h1 {
            font-size: clamp(1.6rem, 5.4vw, 2.2rem);
        }

        .page-hero .lead {
            font-size: .96rem;
        }

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

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

        .hero-panel {
            margin-top: 26px;
            padding: 22px;
        }

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

        .service-grid .card {
            min-height: 0;
        }

        .process-list {
            grid-template-columns: 1fr;
            margin-top: 26px;
        }

        .process-item {
            min-height: auto;
            padding-bottom: 22px;
        }

        .process-item > i {
            margin-top: 14px;
        }

        .channel-table th,
        .channel-table td {
            padding: 14px 15px;
        }

        .form-panel .form-main {
            padding: 26px 20px;
        }

        .bottom-cta {
            padding-top: 42px;
            padding-bottom: 64px;
        }

        .bottom-cta .cta-card {
            padding: 28px 20px;
            display: block;
        }

        .bottom-cta .btn-glow {
            margin-top: 20px;
            width: 100%;
        }

        .footer {
            padding-top: 48px;
        }

        .footer-bottom {
            gap: 6px;
        }
    }

    @media (max-width: 575.98px) {
        .navbar-brand {
            font-size: 1.05rem;
        }

        .navbar-brand i {
            width: 34px;
            height: 34px;
        }

        .footer-contact span {
            line-height: 1.6;
        }
    }

/* roulang page: category3 */
:root {
  --bg-deep:#081624;
  --bg-main:#0A1526;
  --bg-card:#121F33;
  --primary:#0B1B34;
  --accent:#2DE3C8;
  --electric:#5B7FFF;
  --aqua:#B9EBFF;
  --warm:#FF8A5C;
  --text-hi:#EAF2FF;
  --text-mid:#A6B7D4;
  --text-low:#6C82A2;
  --line:rgba(255,255,255,.12);
  --line-strong:rgba(255,255,255,.22);
  --glass-bg:rgba(255,255,255,.045);
  --glass-strong:rgba(255,255,255,.08);
  --radius-s:8px;
  --radius-m:14px;
  --radius-l:22px;
  --shadow-card:0 16px 40px -18px rgba(0,10,30,.65), inset 0 1px 0 rgba(255,255,255,.08);
  --shadow-glow:0 10px 34px -10px rgba(45,227,200,.42);
  --shadow-blue:0 12px 36px -12px rgba(91,127,255,.36);
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --container-max:1280px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-sans);
  background:var(--bg-main);
  color:var(--text-hi);
  line-height:1.8;
  font-size:16px;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--accent);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--aqua);text-decoration:none}
p{margin-bottom:0;line-height:1.8}
h1,h2,h3,h4,h5,h6{font-weight:800;line-height:1.25;color:var(--text-hi)}
.container{max-width:var(--container-max);padding-left:24px;padding-right:24px}
@media (max-width:576px){.container{padding-left:16px;padding-right:16px}}

/* 区块 */
.section{padding:96px 0;position:relative}
.section-sm{padding:64px 0}
.section-alt{background:rgba(255,255,255,.018)}
.section-head{margin-bottom:48px}
.section-head .eyebrow{margin-bottom:14px}
.section-title{font-size:clamp(1.6rem,3vw,2.4rem);margin-bottom:14px}
.section-desc{color:var(--text-mid);max-width:720px;font-size:16px}
.split-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:800;
  color:var(--accent);border:1px solid rgba(45,227,200,.28);
  background:rgba(45,227,200,.08);border-radius:999px;
  padding:6px 14px;letter-spacing:.08em;text-transform:uppercase;
}
.eyebrow i{font-size:12px}
.text-gradient{
  background:linear-gradient(115deg,var(--aqua) 10%,var(--accent) 45%,var(--electric) 90%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.text-accent{color:var(--accent)}
.text-mid{color:var(--text-mid)}
.text-warm{color:var(--warm)}

/* 按钮 */
.btn{
  --bs-btn-font-weight:700;
  border-radius:10px;
  padding:.72rem 1.45rem;
  font-size:15px;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;
  transition:all .25s ease;
}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.btn:active{transform:translateY(1px)}
.btn-accent{
  background:linear-gradient(120deg,#2DE3C8 0%,#1C9FEF 60%,#5B7FFF 100%);
  color:#001426;border:none;
  box-shadow:var(--shadow-glow);
}
.btn-accent:hover{color:#001426;filter:brightness(1.15);transform:translateY(-2px);box-shadow:0 16px 40px -12px rgba(45,227,200,.6)}
.btn-ghost{
  background:rgba(255,255,255,.06);border:1px solid var(--line-strong);color:var(--text-hi);
  backdrop-filter:blur(8px);
}
.btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(45,227,200,.6)}
.btn-warm{
  background:linear-gradient(115deg,#FF8A5C,#F8634D);color:#2A0F0A;border:none;
  box-shadow:0 10px 30px -8px rgba(255,138,92,.45);
}
.btn-warm:hover{color:#2A0F0A;transform:translateY(-2px);filter:brightness(1.08)}
.btn-xl{padding:1rem 1.9rem;font-size:16px;border-radius:12px}
.btn-block{width:100%}
.btn-sm{padding:.42rem .9rem;font-size:13px}
.icon-circle{
  width:36px;height:36px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;
  background:linear-gradient(135deg,rgba(45,227,200,.2),rgba(91,127,255,.12));
  border:1px solid rgba(45,227,200,.3);color:var(--accent);
  flex-shrink:0;
}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:1080;
  background:rgba(8,20,38,.78);backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.site-header .navbar{padding:.75rem 0}
.navbar-brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:18px;font-weight:900;color:var(--text-hi);letter-spacing:.01em;
}
.navbar-brand i{
  color:var(--accent);font-size:20px;
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:9px;
  background:linear-gradient(135deg,rgba(45,227,200,.25),rgba(91,127,255,.18));
  border:1px solid rgba(45,227,200,.35);
  box-shadow:0 0 16px rgba(45,227,200,.28);
}
.navbar-brand span{white-space:nowrap}
.navbar .nav-link{
  color:var(--text-mid);font-weight:600;font-size:15px;
  margin:0 6px;padding:.55rem 1rem;border-radius:8px;
  position:relative;transition:all .2s;
}
.navbar .nav-link:hover{color:var(--text-hi);background:rgba(255,255,255,.06)}
.navbar .nav-link.active{color:var(--accent);background:rgba(45,227,200,.1)}
.navbar .nav-link.active::after{
  content:"";position:absolute;left:50%;bottom:3px;
  width:20px;height:2px;border-radius:2px;
  transform:translateX(-50%);
  background:var(--accent);box-shadow:0 0 8px var(--accent);
}
.nav-cta{
  background:linear-gradient(120deg,rgba(45,227,200,.16),rgba(91,127,255,.14));
  border:1px solid rgba(45,227,200,.45);
  color:var(--accent);font-weight:800;
  padding:.62rem 1.4rem;border-radius:9px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
  transition:all .25s;
}
.nav-cta:hover{background:rgba(45,227,200,.2);border-color:var(--accent);transform:translateY(-1px);box-shadow:var(--shadow-glow)}
.nav-cta i{font-size:13px}
.site-header .navbar-toggler{
  border:1px solid rgba(255,255,255,.18);border-radius:8px;
  background:rgba(255,255,255,.04);
}
.site-header .navbar-toggler-icon{
  background-image:url("data:image/svg+xml;charset=utf8,%3Csvg viewBox='0 0 30 30' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath stroke='%23EAF2FF' stroke-width='2' stroke-linecap='round' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E");
}

/* 分类页首屏 Hero */
.cat-hero{
  position:relative;padding:120px 0 88px;overflow:hidden;
  background:var(--bg-deep);
}
.cat-hero-bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center 30%;
  background-color:#070d1f;opacity:.42;
}
.cat-hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(1000px 540px at 15% 20%,rgba(91,127,255,.14),transparent 60%),
    radial-gradient(700px 420px at 85% 10%,rgba(45,227,200,.14),transparent 55%),
    linear-gradient(180deg,rgba(4,12,24,.79) 0%,rgba(6,16,31,.92) 60%,var(--bg-main) 100%);
}
.cat-hero .container{position:relative;z-index:2}
.breadcrumb-cat{
  display:flex;flex-wrap:wrap;align-items:center;gap:6px;
  font-size:12px;color:var(--text-mid);margin-bottom:32px;
}
.breadcrumb-cat a{color:var(--text-mid)}
.breadcrumb-cat a:hover{color:var(--accent)}
.breadcrumb-cat i{font-size:10px;opacity:.6}
.cat-hero h1{
  font-size:clamp(2rem,4.5vw,3.4rem);
  font-weight:900;line-height:1.2;letter-spacing:-.01em;
  margin:18px 0 20px;
}
.cat-hero .lead{color:var(--text-mid);font-size:16px;max-width:620px;line-height:2}
.cat-hero .hero-bar{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.status-card{
  background:rgba(255,255,255,.055);border:1px solid rgba(255,255,255,.14);
  border-radius:var(--radius-l);padding:24px;
  backdrop-filter:blur(18px);
  box-shadow:var(--shadow-card);
  position:relative;overflow:hidden;
}
.status-card::before{
  content:"";position:absolute;top:0;left:20px;right:20px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(45,227,200,.8),transparent);
}
.status-card .sc-title{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:800;color:var(--aqua);margin-bottom:16px}
.status-card .sc-title i{color:var(--accent)}
.status-item{display:flex;gap:12px;align-items:flex-start;margin-bottom:12px;font-size:14px;color:var(--text-mid)}
.status-item .dot{width:8px;height:8px;border-radius:50%;margin-top:8px;flex-shrink:0}
.dot-online{background:#4BF3C0;box-shadow:0 0 10px #4BF3C0}
.dot-warn{background:#FFB35C;box-shadow:0 0 10px rgba(255,179,92,.7)}
.status-card hr{background:rgba(255,255,255,.12);opacity:1;margin:16px 0}
.status-meta{font-size:12px;color:var(--text-mid);display:flex;align-items:center;gap:8px}
.status-meta i{color:var(--accent)}
.notice-strip{
  margin-top:56px;display:inline-flex;align-items:center;gap:12px;
  border:1px solid rgba(45,227,200,.24);
  background:rgba(45,227,200,.06);border-radius:999px;
  padding:6px 12px;font-size:13px;color:var(--text-hi);
}
.notice-strip i{color:var(--warm)}

/* 卡片 */
.glass-card{
  background:var(--glass-bg);
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(8px);
  padding:26px;
  height:100%;
  transition:transform .25s ease,border-color .25s ease,background .25s ease;
  position:relative;overflow:hidden;
}
.glass-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.25),transparent);
}
.glass-card:hover{transform:translateY(-5px);border-color:rgba(45,227,200,.45);background:rgba(255,255,255,.065)}
.glass-card .icon-chip{
  width:52px;height:52px;border-radius:14px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(45,227,200,.2),rgba(91,127,255,.16));
  color:var(--accent);font-size:21px;
  border:1px solid rgba(45,227,200,.3);
  margin-bottom:22px;
}
.glass-card h3{font-size:1.2rem;font-weight:800;margin-bottom:12px}
.glass-card p{color:var(--text-mid);font-size:14px;line-height:1.9}
.glass-card .card-link{font-size:13px;font-weight:700;color:var(--accent);display:inline-flex;align-items:center;gap:6px}
.glass-card .card-link i{transition:transform .2s}
.glass-card:hover .card-link i{transform:translateX(4px)}
.feature-card{border-left:3px solid transparent}
.feature-card:hover{border-left-color:var(--accent)}

/* 平台导览 */
.guide-card{
  display:flex;gap:16px;align-items:flex-start;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  padding:20px;
  transition:all .25s;
  height:100%;
}
.guide-card:hover{border-color:rgba(45,227,200,.4);background:rgba(255,255,255,.08);transform:translateY(-3px)}
.guide-card .guide-body h4{font-size:16px;margin-bottom:6px}
.guide-card .guide-body p{color:var(--text-mid);font-size:13px}
.tag{
  display:inline-flex;align-items:center;gap:4px;
  background:rgba(45,227,200,.12);border:1px solid rgba(45,227,200,.26);
  color:var(--accent);font-size:11px;font-weight:700;
  padding:3px 9px;border-radius:999px;
}
.tag-warm{background:rgba(255,138,92,.12);border-color:rgba(255,138,92,.32);color:#FFB08A}
.tag-blue{background:rgba(91,127,255,.12);border-color:rgba(91,127,255,.35);color:#93A9FF}

/* 状态数据区 */
.stats-band{
  background:linear-gradient(120deg,rgba(16,33,54,.9),rgba(24,48,82,.8));
  border-top:1px solid rgba(255,255,255,.08);
  border-bottom:1px solid rgba(255,255,255,.08);
  position:relative;overflow:hidden;
}
.stats-band::before{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:linear-gradient(90deg,transparent,rgba(45,227,200,.7),transparent);
}
.stat-block{padding:56px 0}
.stat-item{text-align:center;padding:8px 12px}
.stat-item .num{
  font-size:clamp(1.6rem,3vw,2.5rem);
  font-weight:900;line-height:1.1;
  background:linear-gradient(115deg,#EAF2FF,#2DE3C8);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat-item .lbl{color:var(--text-mind);font-size:13px;margin-top:8px;color:var(--text-mid)}
.stat-item + .stat-item{border-left:1px solid rgba(255,255,255,.08)}
@media (max-width:767px){.stat-item + .stat-item{border-left:0;border-top:1px solid rgba(255,255,255,.07);padding-top:24px}}

/* 活动卡片 */
.activity-card{
  background:rgba(255,255,255,.045);
  border:1px solid var(--line);
  border-radius:var(--radius-l);
  overflow:hidden;
  transition:all .3s ease;
  height:100%;
  display:flex;flex-direction:column;
  box-shadow:var(--shadow-card);
}
.activity-card:hover{transform:translateY(-6px);border-color:rgba(45,227,200,.35)}
.activity-card .ac-cover{aspect-ratio:16/10;display:block;overflow:hidden;background:#0C1A2E;position:relative}
.activity-card .ac-cover img{width:100%;height:100%;object-fit:cover;transition:transform .45s}
.activity-card:hover .ac-cover img{transform:scale(1.05)}
.activity-card .ac-cover::before{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(180deg,rgba(5,12,24,.1),rgba(5,12,24,.45));
}
.activity-card .ac-badge{
  position:absolute;top:14px;left:14px;z-index:2;font-size:11px;
  padding:4px 12px;border-radius:999px;background:rgba(5,15,30,.72);
  border:1px solid rgba(255,255,255,.2);color:var(--text-hi);
  backdrop-filter:blur(6px);
}
.activity-card .ac-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1}
.activity-card .ac-body h3{font-size:1.1rem;font-weight:800;margin-bottom:8px;line-height:1.45}
.activity-card .ac-body p{color:var(--text-mid);font-size:13.5px;flex:1;margin-bottom:18px}
.ac-meta{font-size:12px;color:var(--text-low);display:flex;flex-wrap:wrap;gap:12px;border-top:1px solid rgba(255,255,255,.08);padding-top:16px}
.ac-meta i{color:var(--accent);margin-right:4px}

/* 时间线 */
.timeline{position:relative;padding-left:32px}
.timeline::before{
  content:"";position:absolute;left:10px;top:4px;bottom:4px;width:2px;
  background:linear-gradient(180deg,var(--accent),var(--electric),rgba(45,227,200,.08));
  border-radius:2px;
}
.tl-item{position:relative;padding-bottom:34px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-30px;top:8px;width:14px;height:14px;border-radius:50%;
  background:var(--bg-main);border:3px solid var(--accent);
  box-shadow:0 0 0 4px rgba(45,227,200,.15),0 0 14px rgba(45,227,200,.5);
}
.tl-item .time-label{font-size:12px;color:var(--accent);font-weight:800;letter-spacing:.06em;margin-bottom:4px}
.tl-item h4{font-size:17px;font-weight:800;margin-bottom:6px}
.tl-item p{color:var(--text-mid);font-size:14px;max-width:560px}

/* 表单区块 */
.cta-panel{
  background:linear-gradient(135deg,rgba(12,27,48,.95),rgba(9,20,38,.9));
  border:1px solid rgba(91,127,255,.35);
  border-radius:var(--radius-l);
  box-shadow:0 22px 70px rgba(0,15,40,.5), inset 0 1px 0 rgba(255,255,255,.1);
  padding:clamp(28px,5vw,60px);
  position:relative;overflow:hidden;
}
.cta-panel::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(600px 300px at 80% 0%,rgba(45,227,200,.16),transparent 65%),
             radial-gradient(500px 300px at 0% 100%,rgba(91,127,255,.18),transparent 60%);
  pointer-events:none;
}
.cta-panel > .container{position:relative;z-index:1}
.form-custom .form-label{font-size:13px;font-weight:700;color:var(--aqua);margin-bottom:6px}
.form-custom .form-control,.form-custom .form-select{
  background:#0D1B30;border:1px solid rgba(255,255,255,.14);
  color:var(--text-hi);border-radius:9px;min-height:50px;
  padding:.65rem .95rem;font-size:15px;transition:all .2s;
}
.form-custom .form-control::placeholder{color:#5D7290}
.form-custom .form-control:focus,.form-custom .form-select:focus{
  background:#0E1C33;border-color:var(--accent);
  box-shadow:0 0 0 .2rem rgba(45,227,200,.16);
  color:#fff;
}
.form-custom .form-select{background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath fill='none' stroke='%23A6C4E8' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m2 5 6 6 6-6'/%3E%3C/svg%3E");background-size:16px}
.form-hint{font-size:12px;color:var(--text-mid);margin-top:12px;display:flex;gap:6px;align-items:center}
.form-hint i{color:var(--warn)}

/* FAQ */
.accordion-item{
  background:rgba(255,255,255,.03);
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--radius-m)!important;
  margin-bottom:16px;
  overflow:hidden;
  box-shadow:var(--shadow-card);
}
.accordion-button{
  background:transparent!important;color:var(--text-hi);
  font-weight:700;font-size:15px;padding:1rem 1.2rem;
  box-shadow:none!important;border:none;
  border-radius:var(--radius-m)!important;
  outline:none;
}
.accordion-button::after{
  content:"";background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%232DE3C8'%3E%3Cpath fill-rule='evenodd' d='M8 2a.75.75 0 0 1 .75.75v4.5h4.5a.75.75 0 0 1 0 1.5h-4.5v4.5a.75.75 0 0 1-1.5 0v-4.5h-4.5a.75.75 0 0 1 0-1.5h4.5v-4.5A.75.75 0 0 1 8 2Z'/%3E%3C/svg%3E");
  transition:all .25s;
}
.accordion-button:not(.collapsed)::after{
  transform:rotate(45deg);background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%232DE3C8'%3E%3Cpath fill-rule='evenodd' d='M8 2a.75.75 0 0 1 .75.75v4.5h4.5a.75.75 0 0 1 0 1.5h-4.5v4.5a.75.75 0 0 1-1.5 0v-4.5h-4.5a.75.75 0 0 1 0-1.5h4.5v-4.5A.75.75 0 0 1 8 2Z'/%3E%3C/svg%3E");
}
.accordion-button:focus-visible{outline:2px solid var(--accent);outline-offset:-2px}
.accordion-body{color:var(--text-mid);font-size:14px;padding:0 1.2rem 1.2rem}
.accordion-body p{margin-bottom:8px}

/* 活动流程步骤 */
.step-card{
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  padding:24px;
  height:100%;
  position:relative;
  transition:all .25s;
}
.step-card:hover{border-color:rgba(91,127,255,.4);background:rgba(255,255,255,.075);transform:translateY(-4px)}
.step-num{
  width:48px;height:48px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-weight:900;font-size:18px;margin-bottom:20px;
  background:linear-gradient(135deg,rgba(91,127,255,.25),rgba(45,227,200,.18));
  border:1px solid rgba(45,227,200,.4);color:var(--accent);
  box-shadow:0 0 18px rgba(45,227,200,.2);
}
.step-card h4{font-size:1rem;font-weight:800;margin-bottom:8px}
.step-card p{color:var(--text-mid);font-size:13.5px}

/* 页脚 */
.footer{
  background:#050D1A;border-top:1px solid rgba(45,227,200,.3);
  position:relative;
}
.footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:2px;
  background:linear-gradient(90deg,transparent,rgba(45,227,200,.55),transparent);
}
.footer .container{padding-top:56px;padding-bottom:22px}
.footer-brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:17px;font-weight:900;color:var(--text-hi);margin-bottom:14px;
}
.footer-brand i{
  width:34px;height:34px;border-radius:9px;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--accent);font-size:17px;
  background:rgba(45,227,200,.15);border:1px solid rgba(45,227,200,.35);
}
.footer h5{font-size:15px;font-weight:800;margin-bottom:18px;color:var(--aqua)}
.footer-links a{
  display:flex;align-items:center;gap:8px;
  color:var(--text-mid);font-size:14px;padding:5px 0;transition:all .2s;
}
.footer-links a:before{content:"\f0da";font-family:"Font Awesome 6 Free";font-weight:900;font-size:11px;color:var(--accent)}
.footer-links a:hover{color:var(--accent);padding-left:5px}
.footer-contact li{display:flex;gap:10px;color:var(--text-mid);font-size:14px;margin-bottom:12px}
.footer-contact i{color:var(--accent);font-size:13px;margin-top:6px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding-top:20px;margin-top:26px;font-size:13px;color:var(--text-low)}
.footer-bottom a{color:var(--text-low)}
.footer-bottom a:hover{color:var(--accent)}

/* 响应式 */
@media (max-width:1199px){
  .cat-hero{padding:90px 0 70px}
}
@media (max-width:991px){
  .site-header .navbar-collapse{
    background:rgba(8,18,34,.96);
    border:1px solid var(--line);
    border-radius:16px;
    padding:16px 12px;
    margin-top:10px;
    backdrop-filter:blur(20px);
    box-shadow:0 20px 50px rgba(0,5,18,.65);
  }
  .navbar .nav-link{padding:.6rem .85rem;margin:2px 0}
  .nav-cta{margin-top:10px;justify-content:center}
  .section{padding:74px 0}
  .cat-hero{padding:70px 0 50px}
}
@media (max-width:767px){
  .section{padding:60px 0}
  .glass-card{padding:22px}
  .cat-hero h1{font-size:clamp(1.8rem,9vw,2.6rem)}
  .breadcrumb-cat{margin-bottom:22px}
  .section-head{margin-bottom:28px}
  .split-head{flex-direction:column;align-items:flex-start;gap:12px}
}
@media (max-width:520px){
  .container{padding-left:16px;padding-right:16px}
  .btn-xl{padding:.9rem 1.1rem;font-size:15px}
  .status-card{padding:18px}
  .hero-bar .btn{flex:1}
  .cta-panel{padding:24px}
  .activity-card .ac-body{padding:20px}
}