/* roulang page: index */
:root{
  --bg-0:#06101D;
  --bg-1:#0A1A2B;
  --bg-2:#0E2438;
  --glass:rgba(10,28,48,.58);
  --glass-2:rgba(14,36,56,.78);
  --line:rgba(120,230,255,.18);
  --line-strong:rgba(120,230,255,.42);
  --text:#EAF6FF;
  --muted:#9CB4C9;
  --mint:#2FE6C7;
  --blue:#2E7BFF;
  --amber:#FFB86B;
  --link:#7DE9FF;
  --r-card:18px;
  --r-btn:12px;
  --shadow:0 12px 40px rgba(0,0,0,.35);
  --shadow-hover:0 16px 50px rgba(0,0,0,.45), 0 0 24px rgba(47,230,199,.18);
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.78;
  color:var(--text);
  background-color:var(--bg-0);
  background-image:
    radial-gradient(1100px 520px at 12% -8%,rgba(46,123,255,.16),transparent 62%),
    radial-gradient(900px 460px at 92% 4%,rgba(47,230,199,.10),transparent 60%);
  background-repeat:no-repeat;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:14px;}
a{color:var(--link);text-decoration:none;transition:color .18s ease,opacity .18s ease;}
a:hover{color:var(--mint);}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.3;letter-spacing:.2px;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit;}
input,select,textarea{font-family:inherit;font-size:15px;}
:focus-visible{outline:2px solid var(--mint);outline-offset:3px;border-radius:6px;}

.container-x{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:32px;
  padding-right:32px;
}
@media (max-width:767px){
  .container-x{padding-left:16px;padding-right:16px;}
}

/* ---------- 通用组件 ---------- */
.glass{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.grid-bg{
  background-image:
    linear-gradient(rgba(120,230,255,.06) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,230,255,.06) 1px,transparent 1px);
  background-size:44px 44px;
}
.dot-bg{
  background-image:radial-gradient(rgba(120,230,255,.16) 1px,transparent 1px);
  background-size:18px 18px;
}
.section{padding-top:80px;padding-bottom:80px;}
@media (max-width:1023px){.section{padding-top:64px;padding-bottom:64px;}}
@media (max-width:767px){.section{padding-top:48px;padding-bottom:48px;}}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  font-size:13px;font-weight:600;letter-spacing:.4px;
  color:var(--mint);
  background:rgba(47,230,199,.08);
  border:1px solid rgba(47,230,199,.28);
}
.sec-title{font-size:30px;}
.sec-sub{color:var(--muted);font-size:15px;margin-top:12px;max-width:720px;}
@media (max-width:767px){.sec-title{font-size:24px;}}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease;
}
.btn-primary{
  color:#03121A;
  background:linear-gradient(100deg,#2FE6C7 0%,#2E7BFF 100%);
  box-shadow:0 8px 26px rgba(47,230,199,.28);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 34px rgba(47,230,199,.42);color:#03121A;}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 18px rgba(47,230,199,.26);}
.btn-ghost{
  color:var(--text);
  background:rgba(12,32,54,.56);
  border:1px solid var(--line-strong);
}
.btn-ghost:hover{color:var(--mint);border-color:var(--mint);background:rgba(47,230,199,.08);transform:translateY(-2px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:10px;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:14px;color:var(--mint);}
.link-arrow i{transition:transform .18s ease;}
.link-arrow:hover i{transform:translateX(4px);}

.badge{
  display:inline-flex;align-items:center;
  padding:3px 10px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.3px;
  color:var(--mint);background:rgba(47,230,199,.1);border:1px solid rgba(47,230,199,.3);
}
.badge-amber{color:var(--amber);background:rgba(255,184,107,.1);border-color:rgba(255,184,107,.34);}
.badge-blue{color:var(--link);background:rgba(46,123,255,.12);border-color:rgba(46,123,255,.34);}

.divider{height:1px;background:var(--line);border:none;margin:0;}

/* ---------- 页头 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(6,16,29,.78);
  border-bottom:1px solid rgba(120,230,255,.1);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  transition:background .22s ease,box-shadow .22s ease;
}
.site-header.scrolled{
  background:rgba(5,13,24,.94);
  box-shadow:0 10px 34px rgba(0,0,0,.45);
}
.topbar{
  font-size:12.5px;color:var(--muted);
  border-bottom:1px solid rgba(120,230,255,.08);
}
.topbar-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;height:36px;
}
.topbar-inner .dot-live{
  width:7px;height:7px;border-radius:50%;background:var(--mint);
  box-shadow:0 0 10px rgba(47,230,199,.85);display:inline-block;margin-right:7px;
}
.topbar-right{display:flex;align-items:center;gap:18px;}
@media (max-width:767px){.topbar-right{display:none;}}

.nav-main{
  display:flex;align-items:center;gap:20px;
  min-height:76px;padding-top:10px;padding-bottom:10px;
}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;color:var(--text);}
.brand:hover{color:var(--text);}
.brand-mark{
  width:42px;height:42px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:15px;letter-spacing:.5px;color:#03121A;
  background:linear-gradient(135deg,#2FE6C7,#2E7BFF);
  box-shadow:0 6px 20px rgba(47,230,199,.32);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:17px;font-weight:800;letter-spacing:.3px;}
.brand-sub{font-size:10.5px;letter-spacing:2.4px;color:var(--muted);font-weight:600;}

.nav-search{
  flex:1 1 auto;max-width:620px;min-width:220px;position:relative;
  display:flex;align-items:center;
  height:50px;border-radius:999px;
  background:rgba(10,28,48,.82);
  border:1px solid var(--line);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search:focus-within{border-color:var(--mint);box-shadow:0 0 0 4px rgba(47,230,199,.12);}
.nav-search i{font-size:15px;color:var(--muted);margin-left:20px;}
.nav-search input{
  flex:1;background:transparent;border:none;outline:none;
  color:var(--text);font-size:14.5px;padding:0 12px;height:100%;
}
.nav-search input::placeholder{color:#7389A0;}
.nav-search button{
  height:38px;margin-right:6px;padding:0 20px;border-radius:999px;
  font-size:14px;font-weight:700;color:#03121A;
  background:linear-gradient(100deg,#2FE6C7,#2E7BFF);
  transition:filter .18s ease,transform .18s ease;
}
.nav-search button:hover{filter:brightness(1.08);transform:translateY(-1px);}

.nav-cta{flex-shrink:0;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:rgba(10,28,48,.8);
  color:var(--text);font-size:17px;
}
.nav-toggle:hover{border-color:var(--mint);color:var(--mint);}

.nav-chips{
  display:flex;align-items:center;gap:10px;
  padding-bottom:12px;overflow-x:auto;scrollbar-width:none;
}
.nav-chips::-webkit-scrollbar{display:none;}
.chip{
  display:inline-flex;align-items:center;gap:7px;flex-shrink:0;
  height:34px;padding:0 15px;border-radius:999px;
  font-size:13px;font-weight:600;color:var(--muted);
  background:rgba(12,32,54,.6);
  border:1px solid rgba(120,230,255,.14);
  transition:all .18s ease;
}
.chip:hover{color:var(--mint);border-color:rgba(47,230,199,.45);background:rgba(47,230,199,.08);}
.chip.active{color:#03121A;background:linear-gradient(100deg,#2FE6C7,#2E7BFF);border-color:transparent;}

.mobile-drawer{
  display:none;
  border-top:1px solid var(--line);
  background:rgba(8,22,38,.98);
  padding:16px 0 20px;
}
.mobile-drawer.open{display:block;}
.mobile-drawer a{
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 4px;font-size:15px;color:var(--text);
  border-bottom:1px solid rgba(120,230,255,.1);
}
.mobile-drawer a:last-child{border-bottom:none;}
.mobile-drawer a:hover{color:var(--mint);}

@media (max-width:1023px){
  .nav-main{flex-wrap:wrap;gap:12px;padding-top:12px;}
  .nav-search{order:3;flex:1 1 100%;max-width:none;height:46px;}
  .nav-cta{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;margin-left:auto;}
}
@media (max-width:519px){
  .brand-name{font-size:15.5px;}
  .brand-sub{font-size:9.5px;letter-spacing:2px;}
  .nav-search button{padding:0 14px;font-size:13px;}
}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  padding-top:64px;padding-bottom:72px;
  border-bottom:1px solid rgba(120,230,255,.1);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(120,230,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,230,255,.05) 1px,transparent 1px);
  background-size:52px 52px;
  mask-image:radial-gradient(circle at 30% 20%,#000 40%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 30% 20%,#000 40%,transparent 78%);
}
.hero-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.05fr .95fr;
  gap:48px;align-items:center;
}
.hero h1{
  font-size:44px;margin-top:20px;letter-spacing:.4px;
}
.hero h1 .hl{
  background:linear-gradient(100deg,#2FE6C7,#7DE9FF 60%,#2E7BFF);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{
  margin-top:20px;color:var(--muted);font-size:16px;line-height:1.85;max-width:560px;
}
.hero-lead strong{color:var(--text);font-weight:700;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:14px;margin-top:38px;
  padding-top:26px;border-top:1px solid rgba(120,230,255,.12);
}
.hero-stats .num{
  font-family:var(--font-mono);font-size:24px;font-weight:700;color:var(--mint);
  text-shadow:0 0 18px rgba(47,230,199,.45);line-height:1.2;
}
.hero-stats .lbl{font-size:12.5px;color:var(--muted);margin-top:5px;}

.hero-visual{position:relative;}
.hero-visual .frame{
  position:relative;border-radius:24px;overflow:hidden;
  border:1px solid var(--line-strong);
  box-shadow:0 24px 60px rgba(0,0,0,.5);
}
.hero-visual .frame img{width:100%;height:410px;object-fit:cover;border-radius:0;}
.hero-visual .frame::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,16,29,.15) 0%,rgba(6,16,29,.72) 100%);
}
.float-card{
  position:absolute;z-index:3;
  padding:12px 16px;border-radius:14px;
  background:rgba(9,26,44,.82);
  border:1px solid var(--line-strong);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  box-shadow:0 14px 34px rgba(0,0,0,.45);
  font-size:12.5px;color:var(--muted);
}
.float-card .v{display:block;font-family:var(--font-mono);font-size:19px;font-weight:700;color:var(--text);line-height:1.25;}
.float-card .v.mint{color:var(--mint);}
.float-a{top:26px;left:-18px;}
.float-b{bottom:26px;right:-14px;}
@media (max-width:1023px){
  .hero{padding-top:44px;padding-bottom:56px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero h1{font-size:34px;}
  .hero-lead{font-size:15px;}
  .hero-visual{order:2;}
  .hero-visual .frame img{height:300px;}
  .float-a{top:14px;left:10px;}
  .float-b{bottom:14px;right:10px;}
}
@media (max-width:767px){
  .hero h1{font-size:28px;margin-top:16px;}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px 12px;}
  .hero-stats .num{font-size:21px;}
  .hero-actions .btn{flex:1 1 auto;}
  .hero-visual .frame img{height:240px;}
}

/* ---------- 优惠阶梯 ---------- */
.tier-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;margin-top:44px;
}
.tier-card{
  position:relative;padding:24px 22px 22px;
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  display:flex;flex-direction:column;
}
.tier-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong);}
.tier-card.recommend{
  border-color:rgba(47,230,199,.55);
  background:linear-gradient(180deg,rgba(47,230,199,.09),rgba(10,28,48,.62));
}
.tier-card.recommend::before{
  content:"推荐等级";position:absolute;top:-11px;left:20px;
  padding:2px 12px;border-radius:999px;
  font-size:11.5px;font-weight:700;color:#2A1704;
  background:linear-gradient(100deg,#FFB86B,#FFD79B);
  box-shadow:0 6px 16px rgba(255,184,107,.32);
}
.tier-step{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;
  font-family:var(--font-mono);font-size:14px;font-weight:700;
  color:var(--mint);background:rgba(47,230,199,.1);
  border:1px solid rgba(47,230,199,.32);
}
.tier-card h3{font-size:19px;margin-top:16px;}
.tier-threshold{font-size:13px;color:var(--amber);margin-top:8px;font-weight:600;}
.tier-list{margin-top:16px;display:flex;flex-direction:column;gap:9px;flex:1;}
.tier-list li{
  display:flex;gap:8px;font-size:14px;color:var(--muted);line-height:1.6;
}
.tier-list li i{color:var(--mint);font-size:12px;margin-top:6px;flex-shrink:0;}
.tier-card .link-arrow{margin-top:20px;}
@media (max-width:1023px){.tier-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (max-width:767px){.tier-grid{grid-template-columns:1fr;gap:16px;}}

/* ---------- 套餐对比 ---------- */
.plan-scroll{
  margin-top:40px;overflow-x:auto;border-radius:var(--r-card);
  border:1px solid var(--line);background:var(--glass);
  box-shadow:var(--shadow);
}
.plan-scroll::-webkit-scrollbar{height:8px;}
.plan-scroll::-webkit-scrollbar-thumb{background:rgba(120,230,255,.25);border-radius:999px;}
.plan-grid{
  display:grid;
  grid-template-columns:1.15fr 1fr 1fr 1fr;
  min-width:820px;
}
.plan-cell{
  padding:16px 20px;font-size:14px;
  border-bottom:1px solid rgba(120,230,255,.1);
  border-right:1px solid rgba(120,230,255,.1);
  display:flex;align-items:center;
}
.plan-cell:last-child{border-right:none;}
.plan-grid .plan-cell:nth-child(4n){border-right:none;}
.plan-label{
  color:var(--muted);font-weight:600;background:rgba(8,22,38,.5);
}
.plan-head{
  flex-direction:column;align-items:flex-start;gap:6px;
  padding-top:24px;padding-bottom:24px;
  background:rgba(12,32,54,.5);
}
.plan-head.mid{
  background:linear-gradient(180deg,rgba(47,230,199,.14),rgba(12,32,54,.5));
  border-top:2px solid var(--mint);
}
.plan-head .p-name{font-size:17px;font-weight:800;color:var(--text);}
.plan-head .p-price{
  font-family:var(--font-mono);font-size:21px;font-weight:700;color:var(--mint);
}
.plan-head .p-desc{font-size:12.5px;color:var(--muted);line-height:1.5;}
.plan-value{color:var(--text);font-size:14px;}
.plan-value .yes{color:var(--mint);margin-right:8px;font-size:12px;}
.plan-value .no{color:#6C7F94;margin-right:8px;font-size:12px;}
.plan-grid .plan-row-last{border-bottom:none;}
@media (max-width:767px){
  .plan-grid{grid-template-columns:150px repeat(3,210px);min-width:820px;}
  .plan-label{position:sticky;left:0;z-index:3;background:#0A1A2B;}
  .plan-head{padding:18px 16px;}
}

/* ---------- 限时入口 ---------- */
.limit-wrap{
  position:relative;overflow:hidden;
  border-radius:24px;
  border:1px solid var(--line-strong);
  background-image:linear-gradient(90deg,rgba(6,16,29,.94),rgba(6,16,29,.72)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  padding:44px;
  display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;
}
.limit-wrap::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(120,230,255,.06) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,230,255,.06) 1px,transparent 1px);
  background-size:40px 40px;
  opacity:.7;
}
.limit-inner{position:relative;z-index:2;}
.countdown{display:flex;gap:12px;margin-top:24px;flex-wrap:wrap;}
.cd-block{
  min-width:78px;padding:12px 10px;text-align:center;
  border-radius:14px;
  background:rgba(9,26,44,.86);
  border:1px solid rgba(255,184,107,.32);
  box-shadow:inset 0 0 24px rgba(255,184,107,.06);
}
.cd-block .n{
  font-family:var(--font-mono);font-size:30px;font-weight:700;color:var(--amber);
  line-height:1.1;text-shadow:0 0 16px rgba(255,184,107,.4);
}
.cd-block .t{font-size:11.5px;color:var(--muted);margin-top:4px;letter-spacing:1px;}
.limit-side{
  position:relative;z-index:2;
  padding:26px;border-radius:18px;
  background:rgba(9,26,44,.82);
  border:1px solid var(--line-strong);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
}
.limit-side h3{font-size:18px;}
.limit-side ul{margin-top:16px;display:flex;flex-direction:column;gap:10px;}
.limit-side li{font-size:13.5px;color:var(--muted);display:flex;gap:8px;}
.limit-side li i{color:var(--amber);font-size:11px;margin-top:6px;flex-shrink:0;}
.limit-side .btn{width:100%;margin-top:22px;}
@media (max-width:1023px){
  .limit-wrap{grid-template-columns:1fr;padding:32px;gap:28px;}
}
@media (max-width:767px){
  .limit-wrap{padding:24px;}
  .cd-block{min-width:66px;}
  .cd-block .n{font-size:24px;}
}

/* ---------- 咨询表单 ---------- */
.consult-panel{
  display:grid;grid-template-columns:.85fr 1.15fr;gap:40px;
  padding:40px;border-radius:24px;
  background:var(--glass-2);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.consult-aside h3{font-size:22px;}
.consult-aside p{color:var(--muted);font-size:14.5px;margin-top:12px;}
.trust-list{margin-top:24px;display:flex;flex-direction:column;gap:14px;}
.trust-list li{display:flex;gap:11px;font-size:14px;color:var(--muted);line-height:1.6;}
.trust-list i{
  color:var(--mint);font-size:13px;margin-top:5px;flex-shrink:0;
}
.consult-aside img{margin-top:26px;border-radius:16px;height:150px;width:100%;object-fit:cover;border:1px solid var(--line);}

.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.form-field{display:flex;flex-direction:column;gap:7px;}
.form-field.full{grid-column:1 / -1;}
.form-field label{font-size:13.5px;font-weight:600;color:var(--text);}
.form-field label .req{color:var(--amber);margin-left:3px;}
.form-field input,
.form-field select,
.form-field textarea{
  width:100%;height:48px;padding:0 14px;
  color:var(--text);
  background:rgba(8,22,38,.86);
  border:1px solid rgba(120,230,255,.22);
  border-radius:12px;
  outline:none;
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.form-field textarea{height:auto;padding:12px 14px;min-height:104px;resize:vertical;line-height:1.7;}
.form-field select{appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath fill='%239CB4C9' d='M6 8 0 0h12z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 16px center;background-size:11px;padding-right:38px;}
.form-field input::placeholder,
.form-field textarea::placeholder{color:#6C8098;}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus{
  border-color:var(--mint);
  box-shadow:0 0 0 4px rgba(47,230,199,.12);
  background:rgba(10,28,48,.95);
}
.form-field.error input,
.form-field.error select,
.form-field.error textarea{border-color:#FF8A6B;box-shadow:0 0 0 3px rgba(255,138,107,.12);}
.form-error{font-size:12px;color:#FF9B7E;display:none;}
.form-field.error .form-error{display:block;}
.agree-row{
  grid-column:1 / -1;
  display:flex;align-items:flex-start;gap:10px;
  font-size:13px;color:var(--muted);line-height:1.6;
}
.agree-row input{width:16px;height:16px;margin-top:3px;accent-color:#2FE6C7;flex-shrink:0;}
.form-actions{grid-column:1 / -1;display:flex;align-items:center;gap:16px;flex-wrap:wrap;}
.form-actions .btn{min-width:170px;}
.form-note{font-size:12.5px;color:var(--muted);}
.form-ok{
  grid-column:1 / -1;display:none;
  padding:12px 16px;border-radius:12px;
  font-size:13.5px;color:var(--mint);
  background:rgba(47,230,199,.1);border:1px solid rgba(47,230,199,.34);
}
.form-ok.show{display:block;}
@media (max-width:1023px){
  .consult-panel{grid-template-columns:1fr;padding:28px;gap:30px;}
  .consult-aside img{display:none;}
}
@media (max-width:599px){
  .form-grid{grid-template-columns:1fr;}
  .consult-panel{padding:22px;}
  .form-actions .btn{width:100%;}
}

/* ---------- 最新信息 ---------- */
.news-grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:22px;margin-top:40px;
}
.news-card{
  display:grid;grid-template-columns:190px 1fr;gap:20px;
  padding:18px;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--line);
  box-shadow:var(--shadow);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong);}
.news-cover{
  position:relative;border-radius:14px;overflow:hidden;background:rgba(8,22,38,.9);
}
.news-cover img{width:100%;height:100%;min-height:130px;object-fit:cover;border-radius:14px;transition:transform .3s ease;}
.news-card:hover .news-cover img{transform:scale(1.05);}
.news-body{display:flex;flex-direction:column;min-width:0;}
.news-body h3{
  font-size:16.5px;margin-top:10px;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-body h3 a{color:var(--text);}
.news-body h3 a:hover{color:var(--mint);}
.news-body p{
  font-size:13.5px;color:var(--muted);margin-top:9px;line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  display:flex;align-items:center;gap:14px;
  margin-top:auto;padding-top:14px;font-size:12.5px;color:#7B90A6;
}
.news-meta .link-arrow{margin-left:auto;font-size:13px;}
.empty-state{
  grid-column:1 / -1;
  padding:52px 24px;text-align:center;
  border-radius:var(--r-card);
  background:var(--glass);border:1px dashed rgba(120,230,255,.28);
}
.empty-state i{font-size:30px;color:var(--mint);}
.empty-state p{color:var(--muted);font-size:14.5px;margin-top:14px;}
.empty-state .btn{margin-top:20px;}
@media (max-width:1023px){
  .news-grid{grid-template-columns:1fr;}
}
@media (max-width:599px){
  .news-card{grid-template-columns:1fr;gap:14px;}
  .news-cover img{height:170px;}
}

/* ---------- FAQ ---------- */
.faq-list{margin-top:36px;display:flex;flex-direction:column;gap:12px;max-width:920px;}
.faq-item{
  border-radius:14px;
  background:var(--glass);
  border:1px solid var(--line);
  overflow:hidden;
  transition:border-color .2s ease,background .2s ease;
}
.faq-item:hover{border-color:rgba(120,230,255,.34);}
.faq-item.open{border-color:rgba(47,230,199,.45);background:rgba(12,34,56,.7);}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;
  padding:18px 22px;text-align:left;
  font-size:16px;font-weight:700;color:var(--text);
  transition:color .18s ease;
}
.faq-q:hover{color:var(--mint);}
.faq-q .idx{
  font-family:var(--font-mono);font-size:12.5px;color:var(--mint);
  flex-shrink:0;opacity:.85;
}
.faq-q .ico{
  margin-left:auto;flex-shrink:0;font-size:13px;color:var(--muted);
  transition:transform .2s ease,color .2s ease;
}
.faq-item.open .faq-q .ico{transform:rotate(180deg);color:var(--mint);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .22s ease;
}
.faq-item.open .faq-a{max-height:280px;}
.faq-a p{
  padding:0 22px 20px 56px;
  font-size:14.5px;color:var(--muted);line-height:1.8;
}
@media (max-width:599px){
  .faq-q{font-size:15px;padding:16px 18px;}
  .faq-a p{padding:0 18px 18px 18px;}
}

/* ---------- CTA 条 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:24px;
  padding:44px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  background-image:linear-gradient(100deg,rgba(6,16,29,.95),rgba(11,38,64,.86)),url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
  border:1px solid var(--line-strong);
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(120,230,255,.14) 1px,transparent 1px);
  background-size:20px 20px;opacity:.5;pointer-events:none;
}
.cta-band .cta-txt{position:relative;z-index:2;max-width:640px;}
.cta-band h2{font-size:26px;}
.cta-band p{color:var(--muted);font-size:14.5px;margin-top:10px;}
.cta-band .cta-act{position:relative;z-index:2;display:flex;gap:14px;flex-wrap:wrap;}
@media (max-width:767px){
  .cta-band{padding:28px;gap:22px;}
  .cta-band h2{font-size:21px;}
}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:0;
  border-top:1px solid rgba(120,230,255,.12);
  background:rgba(5,13,24,.9);
  padding-top:64px;padding-bottom:26px;
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:13.5px;color:var(--muted);line-height:1.8;max-width:320px;}
.footer-contact{margin-top:18px;display:flex;flex-direction:column;gap:9px;font-size:13.5px;color:var(--muted);}
.footer-contact li{display:flex;gap:9px;align-items:center;}
.footer-contact i{color:var(--mint);font-size:12.5px;width:16px;}
.footer-title{font-size:14px;font-weight:800;color:var(--text);letter-spacing:.5px;margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:13.5px;color:var(--muted);}
.footer-links a:hover{color:var(--mint);}
.footer-note{font-size:13.5px;color:var(--muted);line-height:1.8;}
.footer-bottom{
  margin-top:44px;padding-top:22px;
  border-top:1px solid rgba(120,230,255,.1);
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:#7B90A6;
}
.footer-bottom .fl{display:flex;gap:18px;flex-wrap:wrap;}
.footer-bottom a{color:#7B90A6;}
.footer-bottom a:hover{color:var(--mint);}
@media (max-width:1023px){.footer-grid{grid-template-columns:1fr 1fr;gap:30px;}}
@media (max-width:767px){.footer-grid{grid-template-columns:1fr;gap:26px;}}

/* roulang page: category1 */
:root{
  --bg-0:#06101D;
  --bg-1:#0A1A2B;
  --bg-2:#0E2438;
  --glass:rgba(10,28,48,.58);
  --glass-2:rgba(12,34,56,.78);
  --line:rgba(120,230,255,.18);
  --line-strong:rgba(120,230,255,.36);
  --text:#EAF6FF;
  --muted:#9CB4C9;
  --teal:#2FE6C7;
  --blue:#2E7BFF;
  --amber:#FFB86B;
  --link:#7DE9FF;
  --radius-lg:18px;
  --radius-md:12px;
  --radius-sm:10px;
  --shadow-1:0 12px 40px rgba(0,0,0,.35);
  --shadow-2:0 16px 50px rgba(0,0,0,.45),0 0 24px rgba(47,230,199,.18);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  background:var(--bg-0);
  color:var(--text);
  font-size:15px;
  line-height:1.78;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--link);text-decoration:none;transition:color .18s ease,opacity .18s ease;}
a:hover{color:var(--teal);}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,select,textarea{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--teal);outline-offset:3px;border-radius:6px;}

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

/* ============ 顶部公告条 ============ */
.topbar{
  background:linear-gradient(90deg,rgba(47,230,199,.10),rgba(46,123,255,.10));
  border-bottom:1px solid var(--line);
  font-size:12.5px;
  color:var(--muted);
  letter-spacing:.2px;
}
.topbar .container-x{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:36px;flex-wrap:wrap;
}
.topbar strong{color:var(--teal);font-weight:600;}
.topbar .dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--teal);margin-right:8px;box-shadow:0 0 10px var(--teal);vertical-align:middle;}
.topbar-right{display:flex;align-items:center;gap:18px;}
.topbar-right span{white-space:nowrap;}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(6,16,29,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:background .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{background:rgba(6,16,29,.96);box-shadow:0 10px 30px rgba(0,0,0,.45);}
.header-inner{
  display:flex;align-items:center;gap:24px;
  min-height:78px;padding:12px 0;
}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;color:var(--text);}
.brand:hover{color:var(--text);}
.brand-mark{
  width:42px;height:42px;border-radius:12px;
  display:grid;place-items:center;
  font-weight:800;font-size:16px;letter-spacing:.5px;
  color:#04121F;
  background:linear-gradient(135deg,var(--teal),var(--blue));
  box-shadow:0 0 20px rgba(47,230,199,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-name{font-size:17px;font-weight:800;letter-spacing:.4px;color:var(--text);}
.brand-sub{font-size:10.5px;letter-spacing:2.4px;color:var(--muted);font-weight:600;}

.nav-search{flex:1 1 auto;max-width:620px;min-width:260px;}
.search-form{
  display:flex;align-items:center;gap:8px;
  background:rgba(9,26,44,.9);
  border:1px solid var(--line);
  border-radius:999px;
  padding:6px 6px 6px 18px;
  height:50px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-form:focus-within{border-color:var(--line-strong);box-shadow:0 0 0 3px rgba(47,230,199,.14);}
.search-form i{color:var(--muted);font-size:14px;}
.search-input{
  flex:1;background:transparent;border:0;outline:none;
  font-size:14px;color:var(--text);height:100%;
}
.search-input::placeholder{color:#6F8AA1;}
.search-btn{
  height:38px;padding:0 20px;border-radius:999px;
  font-size:14px;font-weight:600;color:#04121F;
  background:linear-gradient(135deg,var(--teal),var(--blue));
  transition:transform .18s ease,box-shadow .18s ease,filter .18s ease;
  white-space:nowrap;
}
.search-btn:hover{transform:translateY(-1px);box-shadow:0 0 18px rgba(47,230,199,.42);filter:brightness(1.05);}
.search-btn:active{transform:translateY(0);}

.header-cta{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:8px;
  height:44px;padding:0 20px;border-radius:12px;
  font-size:14px;font-weight:700;color:#04121F;
  background:linear-gradient(135deg,var(--teal),var(--blue));
  box-shadow:0 0 18px rgba(47,230,199,.24);
  transition:transform .18s ease,box-shadow .18s ease;
}
.header-cta:hover{color:#04121F;transform:translateY(-2px);box-shadow:0 0 26px rgba(47,230,199,.46);}
.header-cta:active{transform:translateY(0);}

.nav-chips{
  display:flex;align-items:center;gap:10px;
  padding:0 0 14px;
  overflow-x:auto;
  scrollbar-width:none;
}
.nav-chips::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto;
  display:inline-flex;align-items:center;
  height:34px;padding:0 16px;border-radius:999px;
  font-size:13.5px;font-weight:600;
  color:var(--muted);
  background:rgba(10,28,48,.6);
  border:1px solid var(--line);
  transition:all .18s ease;
  white-space:nowrap;
}
.chip:hover{color:var(--text);border-color:var(--line-strong);background:rgba(14,36,56,.9);}
.chip.active{
  color:#04121F;
  background:linear-gradient(135deg,var(--teal),var(--blue));
  border-color:transparent;
  box-shadow:0 0 18px rgba(47,230,199,.3);
}

/* ============ 页面 banner ============ */
.page-hero{
  position:relative;
  border-bottom:1px solid var(--line);
  background-color:var(--bg-1);
  background-image:
    linear-gradient(rgba(6,16,29,.90),rgba(6,16,29,.96)),
    url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute;inset:0;
  background-image:
    repeating-linear-gradient(0deg,rgba(120,230,255,.05) 0 1px,transparent 1px 64px),
    repeating-linear-gradient(90deg,rgba(120,230,255,.05) 0 1px,transparent 1px 64px);
  pointer-events:none;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent);
}
.page-hero .container-x{position:relative;z-index:2;padding-top:34px;padding-bottom:52px;}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);flex-wrap:wrap;}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--teal);}
.crumb i{font-size:9px;opacity:.6;}
.crumb .current{color:var(--text);font-weight:600;}

.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  margin-top:22px;
  padding:6px 14px;border-radius:999px;
  font-size:12.5px;font-weight:600;letter-spacing:.4px;
  color:var(--teal);
  background:rgba(47,230,199,.10);
  border:1px solid rgba(47,230,199,.28);
}
.page-hero h1{
  margin-top:16px;
  font-size:42px;line-height:1.24;font-weight:800;letter-spacing:.5px;
  max-width:900px;
}
.page-hero h1 em{font-style:normal;color:var(--teal);}
.hero-lead{
  margin-top:16px;max-width:760px;
  font-size:15.5px;color:var(--muted);line-height:1.85;
}
.hero-lead strong{color:var(--text);font-weight:600;}
.hero-stats{
  margin-top:26px;display:flex;flex-wrap:wrap;gap:12px;
}
.stat-pill{
  display:flex;align-items:baseline;gap:8px;
  padding:10px 16px;border-radius:12px;
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  font-size:12.5px;color:var(--muted);
}
.stat-pill b{font-size:19px;color:var(--teal);font-weight:800;letter-spacing:.5px;text-shadow:0 0 14px rgba(47,230,199,.4);}

/* ============ 工具条 ============ */
.toolbar{
  margin-top:30px;
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;
  padding:14px;
  border-radius:var(--radius-lg);
  background:var(--glass-2);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.toolbar-search{
  flex:1 1 320px;display:flex;align-items:center;gap:10px;
  height:46px;padding:0 16px;border-radius:var(--radius-md);
  background:rgba(6,16,29,.85);
  border:1px solid var(--line);
}
.toolbar-search i{color:var(--muted);font-size:14px;}
.toolbar-search input{flex:1;background:transparent;border:0;outline:none;font-size:14px;color:var(--text);}
.toolbar-search input::placeholder{color:#6F8AA1;}
.toolbar-select{
  position:relative;flex:0 0 auto;
}
.toolbar-select select{
  appearance:none;-webkit-appearance:none;
  height:46px;padding:0 42px 0 16px;
  border-radius:var(--radius-md);
  background:rgba(6,16,29,.85);
  border:1px solid var(--line);
  color:var(--text);font-size:14px;outline:none;
  transition:border-color .2s ease;
}
.toolbar-select select:hover{border-color:var(--line-strong);}
.toolbar-select::after{
  content:"\f078";
  font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;right:16px;top:50%;transform:translateY(-50%);
  font-size:10px;color:var(--muted);pointer-events:none;
}
.toolbar-btn{
  flex:0 0 auto;height:46px;padding:0 22px;border-radius:var(--radius-md);
  font-size:14px;font-weight:700;color:#04121F;
  background:linear-gradient(135deg,var(--teal),var(--blue));
  transition:transform .18s ease,box-shadow .18s ease;
}
.toolbar-btn:hover{transform:translateY(-2px);box-shadow:0 0 22px rgba(47,230,199,.42);}
.toolbar-btn:active{transform:translateY(0);}

/* ============ 主体布局 ============ */
.page-main{padding:64px 0 0;}
.layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:28px;align-items:start;}

/* 筛选面板 */
.filter-panel{
  position:sticky;top:110px;
  border-radius:var(--radius-lg);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  padding:20px 18px;
}
.filter-head{
  display:flex;align-items:center;justify-content:space-between;
  padding-bottom:14px;border-bottom:1px solid var(--line);
}
.filter-head h2{font-size:14.5px;font-weight:700;letter-spacing:.4px;color:var(--text);}
.filter-head button{font-size:12px;color:var(--link);}
.filter-head button:hover{color:var(--teal);}
.filter-group{margin-top:18px;}
.filter-group h3{
  font-size:12px;font-weight:700;letter-spacing:1.4px;
  color:var(--muted);text-transform:uppercase;margin-bottom:12px;
}
.filter-item{
  display:flex;align-items:center;gap:10px;
  padding:8px 0;font-size:13.5px;color:var(--muted);
  cursor:pointer;transition:color .16s ease;
}
.filter-item:hover{color:var(--text);}
.filter-item input{
  appearance:none;-webkit-appearance:none;
  width:16px;height:16px;flex:0 0 auto;
  border-radius:5px;border:1px solid var(--line-strong);
  background:rgba(6,16,29,.9);
  position:relative;transition:all .16s ease;
}
.filter-item input:checked{background:linear-gradient(135deg,var(--teal),var(--blue));border-color:transparent;}
.filter-item input:checked::after{
  content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;inset:0;display:grid;place-items:center;
  font-size:9px;color:#04121F;
}
.filter-item span.count{margin-left:auto;font-size:11.5px;color:#6F8AA1;}
.filter-note{
  margin-top:20px;padding-top:16px;border-top:1px solid var(--line);
  font-size:12.5px;color:var(--muted);line-height:1.8;
}

/* 内容列表区 */
.list-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:16px;
  flex-wrap:wrap;margin-bottom:22px;
}
.list-head h2{font-size:27px;font-weight:800;letter-spacing:.4px;}
.list-head p{font-size:13.5px;color:var(--muted);margin-top:6px;}
.list-count{
  font-size:12.5px;color:var(--muted);
  padding:6px 14px;border-radius:999px;
  background:rgba(47,230,199,.08);
  border:1px solid rgba(47,230,199,.24);
}
.list-count b{color:var(--teal);}

.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.list-card{
  display:grid;grid-template-columns:138px minmax(0,1fr);
  gap:16px;
  padding:14px;
  border-radius:var(--radius-lg);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.list-card:hover{
  transform:translateY(-4px);
  border-color:var(--line-strong);
  box-shadow:var(--shadow-2);
}
.list-card .thumb{
  position:relative;border-radius:14px;overflow:hidden;
  aspect-ratio:4/3;background:var(--bg-2);
}
.list-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.list-card:hover .thumb img{transform:scale(1.05);}
.list-card .body{display:flex;flex-direction:column;min-width:0;}
.tag{
  display:inline-flex;align-items:center;
  align-self:flex-start;
  height:22px;padding:0 10px;border-radius:999px;
  font-size:11.5px;font-weight:600;letter-spacing:.3px;
  color:var(--teal);
  background:rgba(47,230,199,.10);
  border:1px solid rgba(47,230,199,.26);
}
.tag.amber{color:var(--amber);background:rgba(255,184,107,.10);border-color:rgba(255,184,107,.28);}
.list-card h3{
  margin-top:9px;
  font-size:16px;font-weight:700;line-height:1.5;color:var(--text);
}
.list-card h3 a{color:inherit;}
.list-card h3 a:hover{color:var(--teal);}
.list-card .desc{
  margin-top:7px;font-size:13px;color:var(--muted);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.list-card .meta{
  margin-top:auto;padding-top:10px;
  display:flex;align-items:center;gap:14px;
  font-size:11.5px;color:#6F8AA1;
}
.list-card .meta i{margin-right:5px;font-size:11px;}
.list-card .meta .go{margin-left:auto;color:var(--link);font-weight:600;transition:transform .18s ease,color .18s ease;}
.list-card:hover .meta .go{transform:translateX(4px);color:var(--teal);}

/* ============ 流程板块 ============ */
.section{padding:76px 0 0;}
.section-head{max-width:720px;margin-bottom:30px;}
.section-eyebrow{
  font-size:12.5px;font-weight:700;letter-spacing:2px;
  color:var(--teal);text-transform:uppercase;
}
.section-head h2{margin-top:10px;font-size:30px;font-weight:800;line-height:1.3;}
.section-head p{margin-top:12px;font-size:14.5px;color:var(--muted);line-height:1.85;}

.step-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.step-card{
  position:relative;
  padding:24px 22px;
  border-radius:var(--radius-lg);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:border-color .2s ease,transform .2s ease;
}
.step-card:hover{border-color:var(--line-strong);transform:translateY(-3px);}
.step-num{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:12px;font-weight:700;letter-spacing:2px;color:var(--teal);
  display:inline-flex;align-items:center;gap:8px;
}
.step-num::after{content:"";display:block;width:34px;height:1px;background:var(--line-strong);}
.step-card h3{margin-top:12px;font-size:18px;font-weight:700;}
.step-card p{margin-top:8px;font-size:13.5px;color:var(--muted);line-height:1.8;}
.step-card ul{margin-top:12px;display:flex;flex-direction:column;gap:6px;}
.step-card li{font-size:13px;color:var(--muted);padding-left:16px;position:relative;}
.step-card li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--teal);opacity:.8;}

/* ============ CTA ============ */
.cta-band{
  margin-top:76px;
  border-radius:24px;
  border:1px solid var(--line-strong);
  background:
    radial-gradient(120% 140% at 15% 0%,rgba(47,230,199,.14),transparent 55%),
    radial-gradient(120% 140% at 90% 100%,rgba(46,123,255,.16),transparent 60%),
    var(--bg-1);
  padding:44px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  flex-wrap:wrap;
  overflow:hidden;
  position:relative;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:
    repeating-linear-gradient(0deg,rgba(120,230,255,.06) 0 1px,transparent 1px 40px),
    repeating-linear-gradient(90deg,rgba(120,230,255,.06) 0 1px,transparent 1px 40px);
  pointer-events:none;
}
.cta-band > *{position:relative;z-index:2;}
.cta-band h2{font-size:27px;font-weight:800;line-height:1.35;max-width:560px;}
.cta-band p{margin-top:10px;font-size:14px;color:var(--muted);max-width:600px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
.btn-primary{
  display:inline-flex;align-items:center;gap:9px;
  height:50px;padding:0 28px;border-radius:12px;
  font-size:15px;font-weight:700;color:#04121F;
  background:linear-gradient(135deg,var(--teal),var(--blue));
  box-shadow:0 0 22px rgba(47,230,199,.32);
  transition:transform .18s ease,box-shadow .18s ease;
}
.btn-primary:hover{color:#04121F;transform:translateY(-2px);box-shadow:0 0 32px rgba(47,230,199,.55);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  display:inline-flex;align-items:center;gap:9px;
  height:50px;padding:0 26px;border-radius:12px;
  font-size:15px;font-weight:600;color:var(--text);
  background:rgba(10,28,48,.7);
  border:1px solid var(--line-strong);
  transition:all .18s ease;
}
.btn-ghost:hover{color:var(--teal);border-color:var(--teal);background:rgba(14,36,56,.9);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}

/* ============ FAQ ============ */
.faq-list{margin-top:8px;border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;
  padding:20px 4px;text-align:left;
  font-size:16px;font-weight:700;color:var(--text);
  transition:color .18s ease;
}
.faq-q:hover{color:var(--teal);}
.faq-q .idx{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:12px;color:var(--muted);flex:0 0 auto;
}
.faq-q .ico{
  margin-left:auto;flex:0 0 auto;
  width:26px;height:26px;border-radius:50%;
  display:grid;place-items:center;
  border:1px solid var(--line);
  color:var(--muted);font-size:11px;
  transition:transform .2s ease,color .2s ease,border-color .2s ease;
}
.faq-item.open .faq-q .ico{transform:rotate(180deg);color:var(--teal);border-color:var(--line-strong);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .22s ease;
}
.faq-item.open .faq-a{max-height:260px;}
.faq-a p{padding:0 4px 22px;font-size:14px;color:var(--muted);line-height:1.85;max-width:860px;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:88px;
  border-top:1px solid var(--line);
  background:var(--bg-1);
  padding:56px 0 0;
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;
  padding-bottom:40px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:13.5px;color:var(--muted);line-height:1.85;max-width:320px;}
.footer-contact{margin-top:16px;display:flex;flex-direction:column;gap:9px;}
.footer-contact li{font-size:13px;color:var(--muted);display:flex;align-items:center;gap:9px;}
.footer-contact i{color:var(--teal);font-size:12.5px;width:15px;text-align:center;}
.footer-title{font-size:13.5px;font-weight:700;color:var(--text);letter-spacing:.5px;margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:13.5px;color:var(--muted);}
.footer-links a:hover{color:var(--teal);}
.footer-note{font-size:13px;color:var(--muted);line-height:1.85;max-width:300px;}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:#6F8AA1;
}
.footer-bottom .fl{display:flex;gap:22px;flex-wrap:wrap;}

/* ============ 响应式 ============ */
@media (max-width:1180px){
  .card-grid{grid-template-columns:1fr;}
  .list-card{grid-template-columns:170px minmax(0,1fr);}
}
@media (max-width:1023px){
  .container-x{padding:0 24px;}
  .header-inner{flex-wrap:wrap;gap:14px;padding:14px 0 10px;}
  .nav-search{order:3;flex:1 1 100%;max-width:none;min-width:0;}
  .header-cta{margin-left:auto;}
  .page-hero h1{font-size:34px;}
  .page-main{padding-top:44px;}
  .layout{grid-template-columns:1fr;}
  .filter-panel{position:static;}
  .step-grid{grid-template-columns:1fr;}
  .cta-band{padding:34px 26px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  .topbar .container-x{min-height:auto;padding-top:8px;padding-bottom:8px;gap:6px;}
  .topbar-right{gap:12px;font-size:12px;}
  .page-hero .container-x{padding-top:24px;padding-bottom:38px;}
  .page-hero h1{font-size:28px;line-height:1.32;}
  .hero-lead{font-size:14.5px;}
  .toolbar{padding:12px;}
  .toolbar-search{flex:1 1 100%;}
  .toolbar-select{flex:1 1 100%;}
  .toolbar-select select{width:100%;}
  .toolbar-btn{flex:1 1 100%;}
  .list-card{grid-template-columns:1fr;gap:12px;}
  .list-card .thumb{aspect-ratio:16/9;}
  .section{padding-top:52px;}
  .section-head h2{font-size:24px;}
  .cta-band{margin-top:52px;padding:28px 20px;border-radius:18px;}
  .cta-band h2{font-size:22px;}
  .cta-actions{width:100%;}
  .btn-primary,.btn-ghost{flex:1 1 100%;justify-content:center;}
  .site-footer{margin-top:60px;padding-top:40px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .footer-note,.footer-brand p{max-width:none;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
}
@media (max-width:520px){
  .container-x{padding:0 16px;}
  .brand-name{font-size:15.5px;}
  .header-cta{padding:0 14px;height:40px;font-size:13px;}
  .page-hero h1{font-size:25px;}
  .footer-grid{grid-template-columns:1fr;}
  .hero-stats{gap:10px;}
  .stat-pill{flex:1 1 100%;}
}

/* roulang page: article */
:root{
    --bg-900:#06101D;
    --bg-800:#0A1A2B;
    --bg-700:#0E2438;
    --glass:rgba(10,28,48,.58);
    --glass-strong:rgba(10,28,48,.88);
    --line:rgba(120,230,255,.18);
    --line-soft:rgba(120,230,255,.10);
    --text:#EAF6FF;
    --text-soft:#D9E9F6;
    --muted:#9CB4C9;
    --cyan:#2FE6C7;
    --blue:#2E7BFF;
    --amber:#FFB86B;
    --link:#7DE9FF;
    --radius:18px;
    --radius-sm:12px;
    --shadow:0 12px 40px rgba(0,0,0,.35);
    --shadow-hover:0 16px 50px rgba(0,0,0,.45), 0 0 24px rgba(47,230,199,.18);
    --container:1200px;
  }

  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth;scroll-padding-top:110px}
  body{
    margin:0;
    font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
    background:var(--bg-900);
    color:var(--text);
    font-size:16px;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
    overflow-x:hidden;
  }
  body::before{
    content:"";
    position:fixed;
    inset:0;
    z-index:0;
    pointer-events:none;
    background-image:
      linear-gradient(rgba(120,230,255,.05) 1px,transparent 1px),
      linear-gradient(90deg,rgba(120,230,255,.05) 1px,transparent 1px);
    background-size:64px 64px;
    -webkit-mask-image:radial-gradient(ellipse at 50% 0%,#000 12%,transparent 72%);
    mask-image:radial-gradient(ellipse at 50% 0%,#000 12%,transparent 72%);
  }
  h1,h2,h3,h4,p,ul,ol,figure{margin:0}
  a{color:var(--link);text-decoration:none;transition:color .2s ease}
  a:hover{color:var(--cyan)}
  img{max-width:100%;display:block}
  button{font-family:inherit}
  ::selection{background:rgba(47,230,199,.28);color:#fff}

  .container-x{
    width:100%;
    max-width:var(--container);
    margin:0 auto;
    padding:0 32px;
    position:relative;
    z-index:1;
  }

  /* ---------- top bar ---------- */
  .topbar{
    position:relative;
    z-index:70;
    background:rgba(8,22,38,.92);
    border-bottom:1px solid var(--line-soft);
    font-size:13px;
    color:var(--muted);
  }
  .topbar-inner{
    display:flex;
    align-items:center;
    gap:10px;
    height:38px;
    white-space:nowrap;
    overflow:hidden;
  }
  .topbar-dot{
    width:7px;height:7px;border-radius:50%;
    background:var(--cyan);
    box-shadow:0 0 10px rgba(47,230,199,.9);
    flex:0 0 auto;
    animation:pulseDot 2.4s ease-in-out infinite;
  }
  @keyframes pulseDot{0%,100%{opacity:1}50%{opacity:.35}}
  .topbar-link{margin-left:auto;color:var(--link);font-weight:600}
  .topbar-link:hover{color:var(--cyan)}

  /* ---------- header nav ---------- */
  .site-header{
    position:sticky;
    top:0;
    z-index:60;
    background:rgba(6,16,29,.84);
    -webkit-backdrop-filter:blur(14px);
    backdrop-filter:blur(14px);
    border-bottom:1px solid var(--line-soft);
    transition:background .3s ease, box-shadow .3s ease;
  }
  .site-header.scrolled{
    background:rgba(6,16,29,.97);
    box-shadow:0 10px 30px rgba(0,0,0,.45);
  }
  .nav-main{
    display:flex;
    align-items:center;
    gap:24px;
    min-height:78px;
    padding:12px 0;
  }
  .brand{
    display:flex;
    align-items:center;
    gap:11px;
    flex:0 0 auto;
    color:var(--text);
  }
  .brand:hover{color:var(--text)}
  .brand-mark{
    width:42px;height:42px;
    display:grid;place-items:center;
    border-radius:12px;
    font-size:15px;font-weight:800;letter-spacing:.5px;
    color:#03121F;
    background:linear-gradient(140deg,var(--cyan),var(--blue));
    box-shadow:0 0 20px rgba(47,230,199,.35);
  }
  .brand-text{display:flex;flex-direction:column;line-height:1.15}
  .brand-name{font-size:17px;font-weight:800;letter-spacing:.3px}
  .brand-sub{font-size:10px;letter-spacing:2.4px;color:var(--muted);font-weight:600}

  .nav-search{
    position:relative;
    display:flex;
    align-items:center;
    gap:10px;
    flex:1 1 auto;
    max-width:620px;
    height:50px;
    padding:0 6px 0 18px;
    border-radius:999px;
    background:rgba(8,24,40,.85);
    border:1px solid var(--line);
    transition:border-color .25s ease, box-shadow .25s ease, background .25s ease;
  }
  .nav-search:focus-within{
    border-color:rgba(47,230,199,.62);
    box-shadow:0 0 0 4px rgba(47,230,199,.10);
    background:rgba(10,28,48,.95);
  }
  .nav-search > i{color:var(--muted);font-size:14px}
  .nav-search input{
    flex:1;
    min-width:0;
    height:100%;
    border:0;
    outline:none;
    background:transparent;
    color:var(--text);
    font-size:14px;
  }
  .nav-search input::placeholder{color:rgba(156,180,201,.75)}
  .nav-search button{
    flex:0 0 auto;
    height:38px;
    padding:0 20px;
    border:0;
    border-radius:999px;
    cursor:pointer;
    font-size:14px;
    font-weight:700;
    color:#03121F;
    background:linear-gradient(120deg,var(--cyan),var(--blue));
    transition:transform .2s ease, box-shadow .25s ease, filter .2s ease;
  }
  .nav-search button:hover{transform:translateY(-1px);box-shadow:0 8px 22px rgba(47,230,199,.35);filter:brightness(1.05)}
  .nav-search button:active{transform:translateY(0)}
  .nav-search button:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}

  .nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto;flex:0 0 auto}
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    height:46px;
    padding:0 22px;
    border-radius:12px;
    border:1px solid transparent;
    font-size:15px;
    font-weight:700;
    cursor:pointer;
    white-space:nowrap;
    transition:transform .2s ease, box-shadow .25s ease, background .25s ease, border-color .25s ease, color .2s ease;
  }
  .btn-primary{
    color:#03121F;
    background:linear-gradient(120deg,var(--cyan),var(--blue));
    box-shadow:0 0 0 1px rgba(47,230,199,.35), 0 10px 30px rgba(46,123,255,.22);
  }
  .btn-primary:hover{color:#03121F;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(47,230,199,.62), 0 14px 38px rgba(47,230,199,.28)}
  .btn-primary:active{transform:translateY(0)}
  .btn-ghost{
    color:var(--text);
    background:rgba(10,28,48,.62);
    border-color:var(--line);
  }
  .btn-ghost:hover{color:var(--text);border-color:rgba(120,230,255,.45);background:rgba(14,36,56,.9);transform:translateY(-2px)}
  .btn-ghost:active{transform:translateY(0)}
  .btn-sm{height:42px;padding:0 18px;font-size:14px;border-radius:11px}
  .btn:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}

  .menu-toggle{
    display:none;
    width:44px;height:44px;
    align-items:center;justify-content:center;
    border-radius:11px;
    background:rgba(10,28,48,.7);
    border:1px solid var(--line);
    color:var(--text);
    font-size:17px;
    cursor:pointer;
    transition:border-color .2s ease, background .2s ease;
  }
  .menu-toggle:hover{border-color:rgba(120,230,255,.45);background:rgba(14,36,56,.9)}
  .menu-toggle:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}

  .nav-chips{
    display:flex;
    align-items:center;
    gap:10px;
    padding:0 0 14px;
    overflow-x:auto;
    scrollbar-width:none;
  }
  .nav-chips::-webkit-scrollbar{display:none}
  .chip{
    flex:0 0 auto;
    display:inline-flex;
    align-items:center;
    height:34px;
    padding:0 16px;
    border-radius:999px;
    font-size:13px;
    font-weight:600;
    color:var(--muted);
    background:rgba(10,28,48,.55);
    border:1px solid var(--line-soft);
    transition:color .2s ease, border-color .2s ease, background .2s ease, transform .2s ease;
  }
  .chip:hover{color:var(--text);border-color:rgba(120,230,255,.4);background:rgba(14,36,56,.9);transform:translateY(-1px)}
  .chip.active{
    color:#03121F;
    background:linear-gradient(120deg,var(--cyan),var(--blue));
    border-color:transparent;
    box-shadow:0 6px 20px rgba(47,230,199,.25);
  }
  .chip:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}

  .mobile-drawer{
    display:none;
    border-top:1px solid var(--line-soft);
    padding:14px 0 18px;
    background:rgba(6,16,29,.98);
  }
  .mobile-drawer.open{display:block}
  .mobile-drawer .chip{height:40px;font-size:14px;width:100%;justify-content:flex-start}

  /* ---------- page body ---------- */
  main{position:relative;z-index:1;padding-bottom:20px}

  .crumb-bar{
    padding:26px 0 0;
  }
  .crumb{
    display:flex;
    align-items:center;
    flex-wrap:wrap;
    gap:8px;
    font-size:13px;
    color:var(--muted);
  }
  .crumb a{color:var(--muted)}
  .crumb a:hover{color:var(--cyan)}
  .crumb i{font-size:10px;opacity:.6}
  .crumb .current{color:var(--link);font-weight:600}

  .article-head{
    padding:22px 0 34px;
    border-bottom:1px solid var(--line-soft);
    margin-bottom:38px;
  }
  .badge{
    display:inline-flex;
    align-items:center;
    gap:6px;
    height:28px;
    padding:0 13px;
    border-radius:999px;
    font-size:12px;
    font-weight:700;
    letter-spacing:.4px;
    color:var(--cyan);
    background:rgba(47,230,199,.10);
    border:1px solid rgba(47,230,199,.32);
  }
  .badge-amber{
    color:var(--amber);
    background:rgba(255,184,107,.10);
    border-color:rgba(255,184,107,.32);
  }
  .article-title{
    margin:16px 0 18px;
    font-size:37px;
    line-height:1.36;
    font-weight:800;
    letter-spacing:-.3px;
    color:var(--text);
    max-width:920px;
  }
  .article-meta{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:10px 22px;
    font-size:13px;
    color:var(--muted);
  }
  .article-meta span{display:inline-flex;align-items:center;gap:7px}
  .article-meta i{font-size:12px;color:rgba(125,233,255,.8)}
  .article-lead{
    margin-top:18px;
    max-width:820px;
    font-size:16px;
    line-height:1.85;
    color:var(--muted);
  }

  .article-cover{
    margin-top:26px;
    border-radius:20px;
    overflow:hidden;
    border:1px solid var(--line);
    box-shadow:var(--shadow);
    position:relative;
  }
  .article-cover::after{
    content:"";
    position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(6,16,29,.05),rgba(6,16,29,.62));
    pointer-events:none;
  }
  .article-cover img{
    width:100%;
    height:clamp(180px,26vw,320px);
    object-fit:cover;
  }

  /* ---------- layout ---------- */
  .article-layout{
    display:grid;
    grid-template-columns:minmax(0,1fr) 240px;
    gap:46px;
    align-items:start;
  }

  .prose{
    max-width:820px;
    font-size:16px;
    line-height:1.85;
    color:var(--text-soft);
    word-break:break-word;
  }
  .prose h2{
    position:relative;
    margin:46px 0 18px;
    padding-left:15px;
    font-size:26px;
    line-height:1.42;
    font-weight:800;
    color:var(--text);
  }
  .prose h2::before{
    content:"";
    position:absolute;
    left:0;top:7px;bottom:7px;
    width:3px;
    border-radius:3px;
    background:linear-gradient(180deg,var(--cyan),var(--blue));
    box-shadow:0 0 12px rgba(47,230,199,.5);
  }
  .prose h3{
    margin:34px 0 13px;
    font-size:20px;
    line-height:1.5;
    font-weight:700;
    color:var(--text);
  }
  .prose h4{
    margin:26px 0 10px;
    font-size:17px;
    font-weight:700;
    color:var(--text);
  }
  .prose p{margin:0 0 18px}
  .prose strong{color:#FFFFFF;font-weight:700}
  .prose ul,.prose ol{margin:0 0 20px;padding-left:23px}
  .prose li{margin-bottom:10px}
  .prose li::marker{color:var(--cyan)}
  .prose blockquote{
    margin:26px 0;
    padding:16px 22px;
    border-left:3px solid var(--cyan);
    background:rgba(47,230,199,.06);
    border-radius:0 14px 14px 0;
    color:#CFE6F3;
  }
  .prose blockquote p:last-child{margin-bottom:0}
  .prose img{
    width:100%;
    height:auto;
    margin:24px 0;
    border-radius:14px;
    border:1px solid var(--line-soft);
  }
  .prose figure{margin:24px 0}
  .prose figure img{margin:0 0 10px}
  .prose figcaption{font-size:13px;color:var(--muted);text-align:center}
  .prose a{color:var(--link);border-bottom:1px solid rgba(125,233,255,.35)}
  .prose a:hover{color:var(--cyan);border-bottom-color:rgba(47,230,199,.7)}
  .prose table{
    display:block;
    width:100%;
    overflow-x:auto;
    border-collapse:collapse;
    margin:24px 0;
    font-size:14px;
    -webkit-overflow-scrolling:touch;
  }
  .prose thead th{
    background:rgba(14,36,56,.9);
    color:var(--text);
    font-weight:700;
    text-align:left;
  }
  .prose th,.prose td{
    padding:11px 15px;
    border:1px solid var(--line-soft);
    min-width:110px;
  }
  .prose tbody tr:nth-child(even){background:rgba(10,28,48,.42)}
  .prose code{
    padding:2px 7px;
    border-radius:6px;
    background:rgba(47,230,199,.12);
    color:var(--cyan);
    font-size:.92em;
    font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  }
  .prose pre{
    margin:22px 0;
    padding:18px 20px;
    border-radius:14px;
    overflow-x:auto;
    background:rgba(6,16,29,.9);
    border:1px solid var(--line-soft);
  }
  .prose pre code{background:transparent;color:#CFE6F3;padding:0}
  .prose hr{
    margin:34px 0;
    border:0;
    height:1px;
    background:linear-gradient(90deg,transparent,var(--line),transparent);
  }

  /* ---------- toc ---------- */
  .toc-card{
    position:sticky;
    top:100px;
    padding:18px 18px 16px;
    border-radius:var(--radius);
    background:var(--glass);
    border:1px solid var(--line);
    -webkit-backdrop-filter:blur(14px);
    backdrop-filter:blur(14px);
    box-shadow:var(--shadow);
  }
  .toc-title{
    display:flex;
    align-items:center;
    gap:8px;
    font-size:13px;
    font-weight:800;
    letter-spacing:1px;
    color:var(--muted);
    text-transform:uppercase;
    padding-bottom:12px;
    margin-bottom:12px;
    border-bottom:1px solid var(--line-soft);
  }
  .toc-title i{color:var(--cyan)}
  .toc-list{list-style:none;margin:0;padding:0;max-height:52vh;overflow-y:auto}
  .toc-list::-webkit-scrollbar{width:5px}
  .toc-list::-webkit-scrollbar-thumb{background:rgba(120,230,255,.22);border-radius:4px}
  .toc-list li{margin-bottom:4px}
  .toc-list a{
    display:block;
    padding:7px 10px;
    border-radius:9px;
    font-size:13px;
    line-height:1.5;
    color:var(--muted);
    border-left:2px solid transparent;
    transition:color .2s ease, background .2s ease, border-color .2s ease;
  }
  .toc-list a:hover{color:var(--text);background:rgba(47,230,199,.08);border-left-color:rgba(47,230,199,.5)}
  .toc-list a.lv3{padding-left:22px;font-size:12.5px;color:rgba(156,180,201,.85)}
  .toc-list a.active{color:var(--cyan);background:rgba(47,230,199,.1);border-left-color:var(--cyan)}
  .toc-tip{
    margin-top:14px;
    padding-top:13px;
    border-top:1px solid var(--line-soft);
    font-size:12px;
    line-height:1.7;
    color:rgba(156,180,201,.8);
  }

  .toc-mobile{display:none}

  /* ---------- empty state ---------- */
  .article-empty{
    max-width:820px;
    padding:60px 30px;
    text-align:center;
    border-radius:var(--radius);
    background:var(--glass);
    border:1px solid var(--line);
    box-shadow:var(--shadow);
  }
  .article-empty i{font-size:34px;color:rgba(125,233,255,.7);margin-bottom:16px;display:block}
  .article-empty h2{font-size:23px;font-weight:800;margin-bottom:10px}
  .article-empty p{color:var(--muted);font-size:15px;margin-bottom:22px}

  /* ---------- related ---------- */
  .section{padding:70px 0 0}
  .section-head{margin-bottom:30px;max-width:760px}
  .eyebrow{
    display:inline-flex;
    align-items:center;
    gap:8px;
    height:28px;
    padding:0 13px;
    border-radius:999px;
    font-size:12px;
    font-weight:700;
    letter-spacing:1.2px;
    color:var(--cyan);
    background:rgba(47,230,199,.08);
    border:1px solid rgba(47,230,199,.26);
    margin-bottom:14px;
  }
  .section-head h2{font-size:29px;line-height:1.4;font-weight:800;letter-spacing:-.2px}
  .section-head p{margin-top:10px;font-size:15px;color:var(--muted);line-height:1.8}

  .related-grid{
    display:grid;
    grid-template-columns:repeat(3,minmax(0,1fr));
    gap:22px;
  }
  .rel-card{
    display:flex;
    flex-direction:column;
    border-radius:var(--radius);
    background:var(--glass);
    border:1px solid var(--line);
    overflow:hidden;
    box-shadow:var(--shadow);
    transition:transform .28s ease, box-shadow .28s ease, border-color .28s ease;
  }
  .rel-card:hover{
    transform:translateY(-5px);
    border-color:rgba(120,230,255,.42);
    box-shadow:var(--shadow-hover);
  }
  .rel-card .thumb{position:relative;overflow:hidden}
  .rel-card .thumb img{width:100%;height:158px;object-fit:cover;transition:transform .5s ease}
  .rel-card:hover .thumb img{transform:scale(1.05)}
  .rel-card .body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:9px;flex:1}
  .rel-card h3{font-size:16px;line-height:1.55;font-weight:700;color:var(--text)}
  .rel-card p{font-size:13.5px;line-height:1.7;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
  .rel-card .more{
    margin-top:auto;
    display:inline-flex;
    align-items:center;
    gap:7px;
    font-size:13px;
    font-weight:700;
    color:var(--link);
  }
  .rel-card .more i{transition:transform .25s ease}
  .rel-card:hover .more i{transform:translateX(4px)}

  .back-row{
    display:flex;
    flex-wrap:wrap;
    gap:14px;
    margin-top:34px;
  }

  /* ---------- CTA ---------- */
  .article-cta{
    margin-top:70px;
    padding:38px 40px;
    border-radius:24px;
    background:
      radial-gradient(circle at 88% 12%,rgba(47,230,199,.14),transparent 52%),
      radial-gradient(circle at 4% 90%,rgba(46,123,255,.16),transparent 55%),
      rgba(10,28,48,.72);
    border:1px solid var(--line);
    box-shadow:var(--shadow);
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:26px;
    justify-content:space-between;
  }
  .article-cta h2{font-size:25px;font-weight:800;line-height:1.4;margin-bottom:10px}
  .article-cta p{font-size:14.5px;color:var(--muted);line-height:1.8;max-width:620px}
  .cta-actions{display:flex;flex-wrap:wrap;gap:12px}

  /* ---------- footer ---------- */
  .site-footer{
    position:relative;
    z-index:1;
    margin-top:84px;
    padding:56px 0 26px;
    background:rgba(6,16,29,.94);
    border-top:1px solid var(--line-soft);
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.5fr 1fr 1fr 1.3fr;
    gap:36px;
    padding-bottom:38px;
    border-bottom:1px solid var(--line-soft);
  }
  .footer-brand p{
    margin-top:16px;
    font-size:13.5px;
    line-height:1.85;
    color:var(--muted);
    max-width:330px;
  }
  .footer-contact{list-style:none;margin:18px 0 0;padding:0}
  .footer-contact li{
    display:flex;
    align-items:center;
    gap:9px;
    font-size:13px;
    color:var(--muted);
    margin-bottom:9px;
  }
  .footer-contact i{color:rgba(125,233,255,.75);width:15px;text-align:center}
  .footer-title{
    font-size:13px;
    font-weight:800;
    letter-spacing:1px;
    color:var(--text);
    margin-bottom:16px;
    text-transform:uppercase;
  }
  .footer-links{display:flex;flex-direction:column;gap:11px}
  .footer-links a{font-size:13.5px;color:var(--muted)}
  .footer-links a:hover{color:var(--cyan)}
  .footer-note{font-size:13px;line-height:1.85;color:var(--muted)}
  .footer-bottom{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    padding-top:22px;
    font-size:12.5px;
    color:rgba(156,180,201,.75);
  }
  .footer-bottom .fl{display:flex;flex-wrap:wrap;gap:20px}

  /* ---------- responsive ---------- */
  @media (max-width:1024px){
    .container-x{padding:0 24px}
    .nav-main{flex-wrap:wrap;gap:14px;padding:12px 0 0}
    .brand{order:1}
    .nav-actions{order:2}
    .nav-search{order:3;flex:1 1 100%;max-width:100%;height:48px}
    .menu-toggle{display:inline-flex}
    .nav-chips{display:none}
    .mobile-drawer .nav-chips{display:flex;flex-direction:column;gap:9px;padding:0;overflow:visible}
    .article-layout{grid-template-columns:minmax(0,1fr);gap:30px}
    .toc-card{display:none}
    .toc-mobile{
      display:block;
      margin-bottom:26px;
      border-radius:16px;
      background:var(--glass);
      border:1px solid var(--line);
      overflow:hidden;
    }
    .toc-mobile summary{
      list-style:none;
      cursor:pointer;
      padding:14px 18px;
      font-size:14px;
      font-weight:700;
      color:var(--text);
      display:flex;
      align-items:center;
      justify-content:space-between;
    }
    .toc-mobile summary::-webkit-details-marker{display:none}
    .toc-mobile summary i{color:var(--cyan);transition:transform .22s ease}
    .toc-mobile[open] summary i{transform:rotate(180deg)}
    .toc-mobile .toc-list{max-height:none;padding:0 8px 14px}
    .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px}
  }
  @media (max-width:768px){
    .container-x{padding:0 18px}
    .topbar-inner{font-size:12px}
    .topbar-link{display:none}
    .article-title{font-size:28px;line-height:1.42}
    .article-head{padding:18px 0 26px;margin-bottom:28px}
    .article-lead{font-size:15px}
    .prose{font-size:15.5px;line-height:1.82}
    .prose h2{font-size:22px;margin-top:36px}
    .prose h3{font-size:18px;margin-top:28px}
    .section-head h2{font-size:24px}
    .related-grid{grid-template-columns:minmax(0,1fr)}
    .article-cta{padding:28px 22px;border-radius:20px}
    .article-cta h2{font-size:21px}
    .cta-actions .btn{flex:1 1 auto}
    .section{padding-top:52px}
    .site-footer{margin-top:60px;padding-top:44px}
    .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    .footer-bottom{flex-direction:column;align-items:flex-start}
  }
  @media (max-width:520px){
    .brand-name{font-size:15.5px}
    .brand-mark{width:38px;height:38px;font-size:13px}
    .btn-sm{height:40px;padding:0 14px;font-size:13px}
    .nav-search{height:46px;padding-left:14px}
    .nav-search button{height:34px;padding:0 15px;font-size:13px}
    .article-title{font-size:24px}
    .article-meta{gap:8px 16px;font-size:12.5px}
    .footer-grid{grid-template-columns:minmax(0,1fr)}
    .back-row .btn{width:100%}
  }

/* roulang page: category2 */
:root{
    --bg-0:#06101D;
    --bg-1:#0A1A2B;
    --bg-2:#0E2438;
    --glass:rgba(10,28,48,0.58);
    --glass-strong:rgba(12,34,56,0.82);
    --line:rgba(120,230,255,0.18);
    --line-soft:rgba(120,230,255,0.10);
    --text:#EAF6FF;
    --text-2:#9CB4C9;
    --text-3:#6F879C;
    --teal:#2FE6C7;
    --blue:#2E7BFF;
    --amber:#FFB86B;
    --link:#7DE9FF;
    --radius-card:18px;
    --radius-btn:12px;
    --radius-img:16px;
    --shadow-card:0 12px 40px rgba(0,0,0,.35);
    --shadow-card-hover:0 16px 50px rgba(0,0,0,.45),0 0 24px rgba(47,230,199,.18);
    --container:1200px;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
    background:var(--bg-0);
    color:var(--text);
    font-size:16px;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;border-radius:var(--radius-img);}
  a{color:var(--link);text-decoration:none;transition:color .2s ease;}
  a:hover{color:var(--teal);}
  button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
  h1,h2,h3,h4,p,ul,ol{margin:0;}
  ul,ol{padding-left:0;list-style:none;}
  :focus-visible{outline:2px solid var(--teal);outline-offset:3px;border-radius:6px;}

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

  /* ---------- 顶部公告条 ---------- */
  .topbar{
    background:linear-gradient(90deg,rgba(46,123,255,.16),rgba(47,230,199,.10) 55%,rgba(255,184,107,.10));
    border-bottom:1px solid var(--line-soft);
    font-size:13px;
    color:var(--text-2);
  }
  .topbar-inner{
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    min-height:38px;flex-wrap:wrap;
  }
  .topbar-inner strong{color:var(--teal);font-weight:600;}
  .topbar-right{display:flex;align-items:center;gap:18px;}
  .topbar-right span{display:inline-flex;align-items:center;gap:6px;white-space:nowrap;}

  /* ---------- 主导航 ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(6,16,29,.72);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border-bottom:1px solid var(--line-soft);
    transition:background .25s ease,box-shadow .25s ease;
  }
  .site-header.scrolled{
    background:rgba(5,13,24,.94);
    box-shadow:0 10px 30px rgba(0,0,0,.45);
  }
  .nav-main{
    display:flex;align-items:center;gap:22px;
    min-height:78px;
  }
  .brand{display:flex;align-items:center;gap:11px;flex-shrink:0;}
  .brand-mark{
    width:42px;height:42px;border-radius:13px;
    display:grid;place-items:center;
    background:linear-gradient(135deg,var(--teal),var(--blue));
    color:#04121F;font-weight:800;font-size:16px;letter-spacing:.5px;
    box-shadow:0 0 18px rgba(47,230,199,.35);
  }
  .brand-text{display:flex;flex-direction:column;line-height:1.15;}
  .brand-name{font-size:17px;font-weight:800;color:var(--text);letter-spacing:.5px;}
  .brand-sub{font-size:10px;letter-spacing:2.4px;color:var(--text-3);font-weight:600;}

  .nav-search{
    flex:1 1 auto;max-width:620px;
    display:flex;align-items:center;
    background:rgba(10,28,48,.72);
    border:1px solid var(--line);
    border-radius:999px;
    padding:5px 5px 5px 18px;
    height:50px;
    transition:border-color .2s ease,box-shadow .2s ease;
  }
  .nav-search:focus-within{
    border-color:rgba(47,230,199,.55);
    box-shadow:0 0 0 3px rgba(47,230,199,.12);
  }
  .nav-search i{color:var(--text-3);font-size:14px;}
  .nav-search input{
    flex:1;background:transparent;border:0;outline:none;
    color:var(--text);font-size:14px;padding:0 12px;
  }
  .nav-search input::placeholder{color:#5F7891;}
  .nav-search button{
    height:40px;padding:0 20px;border-radius:999px;
    background:linear-gradient(135deg,var(--teal),var(--blue));
    color:#04121F;font-weight:700;font-size:13.5px;white-space:nowrap;
    box-shadow:0 6px 18px rgba(47,230,199,.22);
    transition:transform .18s ease,box-shadow .18s ease,filter .18s ease;
  }
  .nav-search button:hover{filter:brightness(1.06);box-shadow:0 10px 26px rgba(47,230,199,.32);transform:translateY(-1px);}
  .nav-search button:active{transform:translateY(1px);box-shadow:0 4px 12px rgba(47,230,199,.2);}

  .nav-cta{
    flex-shrink:0;
    height:46px;padding:0 22px;border-radius:var(--radius-btn);
    display:inline-flex;align-items:center;gap:8px;
    background:linear-gradient(135deg,var(--teal),var(--blue));
    color:#04121F;font-weight:700;font-size:14px;
    box-shadow:0 10px 26px rgba(46,123,255,.28);
    transition:transform .18s ease,box-shadow .18s ease;
  }
  .nav-cta:hover{transform:translateY(-2px);box-shadow:0 14px 34px rgba(47,230,199,.34);color:#04121F;}
  .nav-cta:active{transform:translateY(0);}

  .nav-toggle{
    display:none;
    width:44px;height:44px;border-radius:12px;
    border:1px solid var(--line);
    background:rgba(10,28,48,.7);
    color:var(--text);font-size:16px;
    align-items:center;justify-content:center;
  }

  .nav-chips{
    display:flex;align-items:center;gap:10px;flex-wrap:wrap;
    padding-bottom:14px;
  }
  .chip{
    display:inline-flex;align-items:center;
    padding:7px 16px;border-radius:999px;
    font-size:13.5px;color:var(--text-2);
    border:1px solid var(--line-soft);
    background:rgba(10,28,48,.45);
    transition:all .2s ease;
    white-space:nowrap;
  }
  .chip:hover{
    color:var(--teal);border-color:rgba(47,230,199,.45);
    background:rgba(47,230,199,.08);
  }
  .chip.active{
    color:#04121F;font-weight:700;
    background:linear-gradient(135deg,var(--teal),var(--blue));
    border-color:transparent;
    box-shadow:0 8px 20px rgba(47,230,199,.22);
  }

  /* ---------- 移动抽屉 ---------- */
  .mobile-drawer{
    position:fixed;inset:0;z-index:90;
    background:rgba(4,10,18,.72);
    backdrop-filter:blur(6px);
    display:none;
  }
  .mobile-drawer.open{display:block;}
  .drawer-panel{
    position:absolute;top:0;right:0;
    width:min(340px,86vw);height:100%;
    background:var(--glass-strong);
    border-left:1px solid var(--line);
    padding:24px 22px;
    overflow-y:auto;
  }
  .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
  .drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid var(--line);color:var(--text);}
  .drawer-links{display:flex;flex-direction:column;gap:8px;}
  .drawer-links a{
    padding:12px 14px;border-radius:12px;
    border:1px solid var(--line-soft);
    color:var(--text-2);font-size:14.5px;
  }
  .drawer-links a:hover,.drawer-links a.active{
    color:var(--text);border-color:rgba(47,230,199,.45);background:rgba(47,230,199,.08);
  }

  /* ---------- Hero ---------- */
  .hero{
    position:relative;
    border-bottom:1px solid var(--line-soft);
    background:
      linear-gradient(rgba(120,230,255,.045) 1px,transparent 1px) 0 0/100% 44px,
      linear-gradient(90deg,rgba(120,230,255,.045) 1px,transparent 1px) 0 0/44px 100%,
      radial-gradient(900px 420px at 78% -10%,rgba(46,123,255,.22),transparent 70%),
      radial-gradient(700px 380px at 8% 10%,rgba(47,230,199,.10),transparent 70%),
      var(--bg-0);
    overflow:hidden;
  }
  .hero::after{
    content:"";position:absolute;inset:0;
    background-image:url('/assets/images/backpic/back-2.webp');
    background-size:cover;background-position:center;
    opacity:.16;pointer-events:none;
  }
  .hero-inner{position:relative;z-index:2;padding:34px 0 56px;}
  .breadcrumb{
    display:flex;align-items:center;gap:8px;flex-wrap:wrap;
    font-size:13px;color:var(--text-3);margin-bottom:22px;
  }
  .breadcrumb a{color:var(--text-2);}
  .breadcrumb a:hover{color:var(--teal);}
  .breadcrumb .sep{color:#3D566D;}
  .breadcrumb .current{color:var(--teal);}

  .hero-grid{
    display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center;
  }
  .eyebrow{
    display:inline-flex;align-items:center;gap:9px;
    padding:6px 14px;border-radius:999px;
    font-size:12.5px;letter-spacing:.6px;color:var(--teal);
    border:1px solid rgba(47,230,199,.32);
    background:rgba(47,230,199,.08);
    margin-bottom:18px;
  }
  .eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--teal);box-shadow:0 0 10px var(--teal);}
  .hero h1{
    font-size:42px;line-height:1.22;font-weight:800;letter-spacing:.5px;
    margin-bottom:16px;
  }
  .hero h1 .hl{
    background:linear-gradient(120deg,var(--teal),var(--blue));
    -webkit-background-clip:text;background-clip:text;color:transparent;
  }
  .hero-lead{
    color:var(--text-2);font-size:15.5px;line-height:1.9;max-width:620px;
  }
  .hero-lead strong{color:var(--text);font-weight:600;}

  .hero-search{
    margin-top:26px;
    display:flex;align-items:center;gap:10px;
    background:var(--glass-strong);
    border:1px solid var(--line);
    border-radius:16px;
    padding:10px 10px 10px 20px;
    max-width:640px;
    box-shadow:var(--shadow-card);
    transition:border-color .2s ease,box-shadow .2s ease;
  }
  .hero-search:focus-within{
    border-color:rgba(47,230,199,.55);
    box-shadow:0 16px 44px rgba(0,0,0,.45),0 0 0 3px rgba(47,230,199,.10);
  }
  .hero-search i{color:var(--text-3);font-size:15px;}
  .hero-search input{
    flex:1;min-width:0;background:transparent;border:0;outline:none;
    color:var(--text);font-size:15px;padding:0 12px;
  }
  .hero-search input::placeholder{color:#5F7891;}
  .hero-search button{
    height:44px;padding:0 24px;border-radius:12px;
    background:linear-gradient(135deg,var(--teal),var(--blue));
    color:#04121F;font-weight:700;font-size:14px;white-space:nowrap;
    transition:transform .18s ease,filter .18s ease;
  }
  .hero-search button:hover{filter:brightness(1.06);transform:translateY(-1px);}
  .hero-search button:active{transform:translateY(1px);}

  .hero-filters{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px;}
  .filter-pill{
    display:inline-flex;align-items:center;gap:7px;
    padding:7px 14px;border-radius:999px;
    font-size:12.8px;color:var(--text-2);
    border:1px solid var(--line-soft);background:rgba(10,28,48,.5);
    transition:all .2s ease;
  }
  .filter-pill:hover{color:var(--teal);border-color:rgba(47,230,199,.45);}
  .filter-pill.on{
    color:var(--teal);border-color:rgba(47,230,199,.5);background:rgba(47,230,199,.1);
  }

  .hero-visual{position:relative;}
  .hero-visual img{
    border-radius:22px;
    border:1px solid var(--line);
    box-shadow:var(--shadow-card);
    aspect-ratio:4/3;object-fit:cover;
  }
  .hero-badge{
    position:absolute;left:-18px;bottom:22px;
    background:var(--glass-strong);
    border:1px solid var(--line);
    border-radius:14px;
    padding:12px 16px;
    backdrop-filter:blur(14px);
    box-shadow:var(--shadow-card);
    min-width:160px;
  }
  .hero-badge .num{
    font-family:"SFMono-Regular",Consolas,monospace;
    font-size:22px;font-weight:800;color:var(--teal);
    text-shadow:0 0 18px rgba(47,230,199,.45);
    line-height:1.2;
  }
  .hero-badge .lbl{font-size:11.5px;color:var(--text-3);letter-spacing:.5px;}

  /* ---------- 数据带 ---------- */
  .stat-strip{border-bottom:1px solid var(--line-soft);background:var(--bg-1);}
  .stat-grid{
    display:grid;grid-template-columns:repeat(4,1fr);
    gap:1px;background:var(--line-soft);
  }
  .stat-cell{
    background:var(--bg-1);
    padding:26px 22px;
    transition:background .2s ease;
  }
  .stat-cell:hover{background:var(--bg-2);}
  .stat-cell .num{
    font-family:"SFMono-Regular",Consolas,monospace;
    font-size:26px;font-weight:800;color:var(--text);
    line-height:1.2;margin-bottom:6px;
  }
  .stat-cell .num em{font-style:normal;color:var(--teal);font-size:14px;margin-left:2px;}
  .stat-cell .lbl{font-size:13px;color:var(--text-2);}
  .stat-cell .sub{font-size:11.5px;color:var(--text-3);margin-top:4px;}

  /* ---------- 通用板块 ---------- */
  .section{padding:76px 0;}
  .section.alt{background:var(--bg-1);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);}
  .section-head{margin-bottom:36px;max-width:760px;}
  .section-tag{
    display:inline-flex;align-items:center;gap:8px;
    font-size:12.5px;color:var(--teal);letter-spacing:1.2px;
    margin-bottom:12px;
  }
  .section-tag::before{
    content:"";width:22px;height:1px;background:var(--teal);display:block;
  }
  .section-head h2{font-size:30px;line-height:1.32;font-weight:800;letter-spacing:.4px;margin-bottom:12px;}
  .section-head p{color:var(--text-2);font-size:15px;}

  /* ---------- 三列玻璃卡 ---------- */
  .card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
  .glass-card{
    position:relative;
    background:var(--glass);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    box-shadow:var(--shadow-card);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    padding:24px 22px 20px;
    display:flex;flex-direction:column;
    transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
    overflow:hidden;
  }
  .glass-card::before{
    content:"";position:absolute;top:0;left:0;right:0;height:1px;
    background:linear-gradient(90deg,transparent,rgba(47,230,199,.55),transparent);
    opacity:0;transition:opacity .22s ease;
  }
  .glass-card:hover{
    transform:translateY(-4px);
    border-color:rgba(47,230,199,.42);
    box-shadow:var(--shadow-card-hover);
  }
  .glass-card:hover::before{opacity:1;}
  .card-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px;}
  .card-no{
    font-family:"SFMono-Regular",Consolas,monospace;
    font-size:13px;font-weight:700;color:var(--teal);
    letter-spacing:1.5px;
    border:1px dashed rgba(47,230,199,.4);
    border-radius:9px;padding:3px 9px;
  }
  .tag{
    font-size:11.5px;padding:3px 10px;border-radius:999px;
    color:var(--text-2);border:1px solid var(--line-soft);
    background:rgba(10,28,48,.6);
    white-space:nowrap;
  }
  .tag.teal{color:var(--teal);border-color:rgba(47,230,199,.35);background:rgba(47,230,199,.08);}
  .tag.amber{color:var(--amber);border-color:rgba(255,184,107,.35);background:rgba(255,184,107,.08);}
  .glass-card h3{font-size:17.5px;font-weight:700;line-height:1.5;margin-bottom:10px;color:var(--text);}
  .glass-card p{font-size:14px;color:var(--text-2);line-height:1.8;flex:1;}
  .card-foot{
    display:flex;align-items:center;justify-content:space-between;
    margin-top:18px;padding-top:14px;border-top:1px solid var(--line-soft);
    font-size:13px;color:var(--text-3);
  }
  .card-link{display:inline-flex;align-items:center;gap:7px;color:var(--teal);font-weight:600;font-size:13.5px;}
  .card-link i{transition:transform .2s ease;}
  .glass-card:hover .card-link i{transform:translateX(4px);}

  /* ---------- 步骤 ---------- */
  .step-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
  .step-card{
    position:relative;
    padding:26px 24px;
    border-radius:var(--radius-card);
    border:1px solid var(--line-soft);
    background:linear-gradient(180deg,rgba(14,36,56,.72),rgba(10,26,43,.5));
    transition:border-color .2s ease,transform .2s ease;
  }
  .step-card:hover{border-color:rgba(47,230,199,.4);transform:translateY(-3px);}
  .step-num{
    font-family:"SFMono-Regular",Consolas,monospace;
    font-size:34px;font-weight:800;color:rgba(47,230,199,.22);
    line-height:1;margin-bottom:12px;
  }
  .step-card h3{font-size:17px;font-weight:700;margin-bottom:8px;}
  .step-card p{font-size:13.8px;color:var(--text-2);}
  .step-line{
    position:absolute;top:42px;right:-13px;width:26px;height:1px;
    background:linear-gradient(90deg,rgba(47,230,199,.6),transparent);
  }

  .split{
    display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;
  }
  .split img{
    border-radius:20px;border:1px solid var(--line);
    box-shadow:var(--shadow-card);
    aspect-ratio:16/11;object-fit:cover;
  }
  .check-list{display:flex;flex-direction:column;gap:14px;margin-top:22px;}
  .check-item{display:flex;gap:12px;align-items:flex-start;}
  .check-item i{
    color:var(--teal);font-size:14px;margin-top:5px;
    width:22px;height:22px;border-radius:7px;
    display:grid;place-items:center;flex-shrink:0;
    background:rgba(47,230,199,.1);border:1px solid rgba(47,230,199,.28);
  }
  .check-item span{font-size:14.3px;color:var(--text-2);line-height:1.75;}
  .check-item span strong{color:var(--text);font-weight:600;}

  /* ---------- FAQ ---------- */
  .faq-wrap{max-width:860px;}
  .faq-item{
    border:1px solid var(--line-soft);
    border-radius:14px;
    background:rgba(10,28,48,.42);
    margin-bottom:12px;
    overflow:hidden;
    transition:border-color .2s ease,background .2s ease;
  }
  .faq-item:hover{border-color:rgba(47,230,199,.32);background:rgba(14,36,56,.6);}
  .faq-item.open{border-color:rgba(47,230,199,.42);background:rgba(14,36,56,.7);}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:18px 22px;text-align:left;
    font-size:16px;font-weight:700;color:var(--text);
  }
  .faq-q i{color:var(--teal);font-size:13px;transition:transform .2s ease;flex-shrink:0;}
  .faq-item.open .faq-q i{transform:rotate(180deg);}
  .faq-a{
    max-height:0;overflow:hidden;
    transition:max-height .22s ease;
  }
  .faq-a p{
    padding:0 22px 20px;font-size:14.3px;color:var(--text-2);line-height:1.85;
  }

  /* ---------- CTA ---------- */
  .cta-band{
    position:relative;
    padding:60px 0;
    background:
      linear-gradient(rgba(120,230,255,.05) 1px,transparent 1px) 0 0/100% 38px,
      linear-gradient(90deg,rgba(120,230,255,.05) 1px,transparent 1px) 0 0/38px 100%,
      radial-gradient(700px 320px at 20% 0%,rgba(47,230,199,.14),transparent 70%),
      var(--bg-2);
    border-top:1px solid var(--line-soft);
  }
  .cta-inner{
    display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
    background:var(--glass);
    border:1px solid var(--line);
    border-radius:22px;
    padding:34px 36px;
    backdrop-filter:blur(14px);
    box-shadow:var(--shadow-card);
  }
  .cta-inner h2{font-size:26px;font-weight:800;margin-bottom:10px;letter-spacing:.4px;}
  .cta-inner p{color:var(--text-2);font-size:14.5px;max-width:620px;}
  .cta-actions{display:flex;gap:12px;flex-wrap:wrap;}
  .btn-primary{
    display:inline-flex;align-items:center;gap:9px;
    height:50px;padding:0 26px;border-radius:var(--radius-btn);
    background:linear-gradient(135deg,var(--teal),var(--blue));
    color:#04121F;font-weight:700;font-size:15px;
    box-shadow:0 12px 30px rgba(47,230,199,.26);
    transition:transform .18s ease,box-shadow .18s ease,filter .18s ease;
  }
  .btn-primary:hover{color:#04121F;transform:translateY(-2px);box-shadow:0 16px 38px rgba(47,230,199,.36);filter:brightness(1.05);}
  .btn-primary:active{transform:translateY(0);}
  .btn-ghost{
    display:inline-flex;align-items:center;gap:9px;
    height:50px;padding:0 24px;border-radius:var(--radius-btn);
    background:rgba(10,28,48,.6);
    border:1px solid rgba(125,233,255,.34);
    color:var(--text);font-weight:600;font-size:15px;
    transition:all .18s ease;
  }
  .btn-ghost:hover{color:var(--teal);border-color:rgba(47,230,199,.6);background:rgba(47,230,199,.08);transform:translateY(-2px);}
  .btn-ghost:active{transform:translateY(0);}

  /* ---------- 页脚 ---------- */
  .site-footer{
    background:#040C16;
    border-top:1px solid var(--line-soft);
    padding:56px 0 26px;
  }
  .footer-grid{
    display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;
    padding-bottom:36px;
  }
  .footer-brand p{
    font-size:13.5px;color:var(--text-3);line-height:1.85;margin-top:16px;max-width:320px;
  }
  .footer-contact{margin-top:18px;display:flex;flex-direction:column;gap:9px;}
  .footer-contact li{
    display:flex;align-items:center;gap:9px;
    font-size:13px;color:var(--text-2);
  }
  .footer-contact i{color:var(--teal);font-size:12.5px;width:16px;text-align:center;}
  .footer-title{
    font-size:13px;font-weight:700;color:var(--text);
    letter-spacing:1.4px;margin-bottom:16px;
  }
  .footer-links{display:flex;flex-direction:column;gap:10px;}
  .footer-links a{font-size:13.5px;color:var(--text-2);}
  .footer-links a:hover{color:var(--teal);}
  .footer-note{font-size:13px;color:var(--text-3);line-height:1.9;}
  .footer-bottom{
    border-top:1px solid var(--line-soft);
    padding-top:22px;
    display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
    font-size:12.5px;color:var(--text-3);
  }
  .footer-bottom .fl{display:flex;gap:20px;flex-wrap:wrap;}

  /* ---------- 响应式 ---------- */
  @media (max-width:1024px){
    .container-x{padding-left:24px;padding-right:24px;}
    .nav-main{flex-wrap:wrap;gap:14px;padding:14px 0 4px;min-height:auto;}
    .nav-search{order:3;flex:1 1 100%;max-width:none;margin-bottom:12px;}
    .nav-cta{display:none;}
    .nav-toggle{display:inline-flex;margin-left:auto;}
    .hero-grid{grid-template-columns:1fr;gap:32px;}
    .hero h1{font-size:34px;}
    .hero-visual{max-width:520px;}
    .hero-badge{left:auto;right:14px;bottom:14px;}
    .stat-grid{grid-template-columns:repeat(2,1fr);}
    .card-grid{grid-template-columns:repeat(2,1fr);}
    .step-grid{grid-template-columns:1fr;}
    .step-line{display:none;}
    .split{grid-template-columns:1fr;gap:28px;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
    .section{padding:60px 0;}
    .section-head h2{font-size:26px;}
  }
  @media (max-width:768px){
    .topbar-right{display:none;}
    .topbar-inner{justify-content:center;text-align:center;}
    .card-grid{grid-template-columns:1fr;}
    .hero h1{font-size:30px;}
    .hero-inner{padding:26px 0 44px;}
    .hero-search{flex-wrap:wrap;padding:12px 14px;border-radius:16px;}
    .hero-search input{width:100%;flex:1 1 100%;padding:0 6px 10px;}
    .hero-search button{width:100%;}
    .cta-inner{padding:26px 22px;}
    .cta-actions{width:100%;}
    .btn-primary,.btn-ghost{flex:1;justify-content:center;}
    .footer-bottom{flex-direction:column;align-items:flex-start;}
  }
  @media (max-width:520px){
    .container-x{padding-left:16px;padding-right:16px;}
    .hero h1{font-size:27px;}
    .stat-grid{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr;}
    .nav-search{height:46px;padding-left:14px;}
    .nav-search button{padding:0 14px;font-size:12.5px;}
    .section{padding:46px 0;}
    .section-head h2{font-size:23px;}
    .glass-card{padding:20px 18px;}
    .cta-inner h2{font-size:22px;}
  }

/* roulang page: category3 */
:root{
  --bg-0:#06101D;
  --bg-1:#0A1A2B;
  --bg-2:#0E2438;
  --glass:rgba(10,28,48,.58);
  --glass-strong:rgba(9,25,44,.86);
  --line:rgba(120,230,255,.18);
  --line-soft:rgba(120,230,255,.10);
  --text:#EAF6FF;
  --text-2:#9CB4C9;
  --text-3:#6E879C;
  --teal:#2FE6C7;
  --blue:#2E7BFF;
  --amber:#FFB86B;
  --link:#7DE9FF;
  --r-card:18px;
  --r-btn:12px;
  --r-img:16px;
  --shadow:0 12px 40px rgba(0,0,0,.35);
  --shadow-hover:0 16px 50px rgba(0,0,0,.45),0 0 24px rgba(47,230,199,.18);
  --container:1200px;
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  --mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.78;
  color:var(--text);
  background:var(--bg-0);
  background-image:
    linear-gradient(rgba(47,230,199,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(47,230,199,.035) 1px,transparent 1px),
    radial-gradient(900px 480px at 82% -6%,rgba(46,123,255,.20),transparent 62%),
    radial-gradient(720px 420px at 4% 6%,rgba(47,230,199,.12),transparent 60%);
  background-size:64px 64px,64px 64px,auto,auto;
  background-repeat:repeat,repeat,no-repeat,no-repeat;
  background-attachment:fixed,fixed,scroll,scroll;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--link);text-decoration:none;transition:color .18s ease,opacity .18s ease}
a:hover{color:var(--teal)}
p{margin:0 0 14px}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.28;font-weight:800;letter-spacing:.2px}
button{font-family:inherit;cursor:pointer}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--text)}
::selection{background:rgba(47,230,199,.28);color:#fff}
:focus-visible{outline:2px solid var(--teal);outline-offset:3px;border-radius:6px}

.container-x{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
.section{padding:76px 0}
.section-tight{padding:52px 0}
.section-head{max-width:760px;margin-bottom:34px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--teal);font-weight:700;
  padding:6px 12px;border-radius:999px;
  border:1px solid var(--line);
  background:rgba(47,230,199,.07);
}
.h2{font-size:clamp(23px,2.6vw,32px);margin:14px 0 12px}
.h2 .hl{color:var(--teal)}
.lead{color:var(--text-2);font-size:15.5px;line-height:1.85}
.muted{color:var(--text-2)}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}

/* ============ 顶部公告 ============ */
.topbar{
  background:linear-gradient(90deg,rgba(46,123,255,.16),rgba(47,230,199,.10));
  border-bottom:1px solid var(--line-soft);
  font-size:12.5px;color:var(--text-2);
}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:38px}
.topbar-inner .tb-left{display:flex;align-items:center;gap:10px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-inner .dot{width:6px;height:6px;border-radius:50%;background:var(--teal);box-shadow:0 0 10px rgba(47,230,199,.9)}
.topbar-inner .tb-right{display:flex;align-items:center;gap:18px;white-space:nowrap}
.topbar-inner .tb-right i{color:var(--teal);margin-right:6px}

/* ============ 页头 / 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(6,16,29,.72);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line-soft);
  transition:background .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.site-header.is-solid{background:rgba(6,16,29,.94);box-shadow:0 10px 30px rgba(0,0,0,.42);border-bottom-color:var(--line)}
.header-inner{display:flex;align-items:center;gap:22px;min-height:78px;padding:10px 0}
.brand{display:inline-flex;align-items:center;gap:11px;flex:none}
.brand-mark{
  width:42px;height:42px;border-radius:13px;flex:none;
  display:grid;place-items:center;
  font-weight:800;font-size:15px;letter-spacing:.5px;color:#04121F;
  background:linear-gradient(140deg,var(--teal),#57C9FF 65%,var(--blue));
  box-shadow:0 6px 20px rgba(47,230,199,.30),inset 0 0 0 1px rgba(255,255,255,.22);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:17.5px;font-weight:800;color:var(--text);letter-spacing:.4px}
.brand-sub{font-size:10.5px;letter-spacing:.28em;color:var(--text-3);margin-top:3px}
.brand:hover .brand-name{color:var(--teal)}

.search-shell{flex:1 1 auto;max-width:620px;position:relative}
.search-shell form{display:flex;align-items:center;gap:8px;
  background:rgba(12,32,54,.85);
  border:1px solid var(--line);border-radius:999px;
  padding:7px 8px 7px 18px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.search-shell form:focus-within{border-color:rgba(47,230,199,.7);box-shadow:0 0 0 4px rgba(47,230,199,.12);background:rgba(12,36,60,.95)}
.search-shell i.fa-magnifying-glass{color:var(--text-3);font-size:14px}
.search-shell input{
  flex:1;background:transparent;border:0;outline:none;
  color:var(--text);font-size:14.5px;height:34px;
}
.search-shell input::placeholder{color:var(--text-3)}
.search-shell button{
  border:0;border-radius:999px;padding:9px 20px;font-size:13.5px;font-weight:700;color:#04121F;
  background:linear-gradient(135deg,var(--teal),#5ED2FF);
  transition:transform .18s ease,box-shadow .18s ease,filter .18s ease;
}
.search-shell button:hover{transform:translateY(-1px);box-shadow:0 8px 22px rgba(47,230,199,.32);filter:brightness(1.05)}
.search-shell button:active{transform:translateY(0)}

.nav-right{display:flex;align-items:center;gap:12px;flex:none;margin-left:auto}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);font-size:14.5px;font-weight:700;
  padding:11px 20px;border:1px solid transparent;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,color .18s ease;
  white-space:nowrap;
}
.btn-primary{
  color:#04121F;
  background:linear-gradient(135deg,var(--teal) 0%,#4DC8FF 58%,var(--blue) 120%);
  box-shadow:0 8px 26px rgba(47,230,199,.26),inset 0 0 0 1px rgba(255,255,255,.18);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 34px rgba(47,230,199,.42);color:#04121F}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 14px rgba(47,230,199,.3)}
.btn-ghost{
  color:var(--text);background:rgba(14,36,56,.55);border-color:var(--line);
}
.btn-ghost:hover{border-color:rgba(47,230,199,.65);color:var(--teal);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{padding:9px 16px;font-size:13.5px}

.nav-chips{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 15px;border-radius:999px;font-size:13.5px;font-weight:600;
  color:var(--text-2);border:1px solid var(--line-soft);background:rgba(12,32,52,.6);
  transition:color .18s ease,border-color .18s ease,background .18s ease,transform .18s ease;
}
.chip:hover{color:var(--text);border-color:rgba(47,230,199,.45);transform:translateY(-1px)}
.chip.active{
  color:#04121F;border-color:transparent;
  background:linear-gradient(135deg,var(--teal),#63D6FF);
  box-shadow:0 6px 18px rgba(47,230,199,.28);
}
.chip.active:hover{color:#04121F}
.chip-bar{border-top:1px solid var(--line-soft);padding:10px 0 12px;display:flex;align-items:center;gap:12px}
.chip-bar .chip-label{font-size:12px;letter-spacing:.14em;color:var(--text-3);text-transform:uppercase;white-space:nowrap}
.chip-scroll{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;padding-bottom:2px}
.chip-scroll::-webkit-scrollbar{display:none}

.menu-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:rgba(12,32,52,.7);color:var(--text);
  align-items:center;justify-content:center;font-size:16px;
}
.menu-toggle:hover{color:var(--teal);border-color:rgba(47,230,199,.6)}
.mobile-drawer{
  display:none;border-top:1px solid var(--line-soft);
  background:rgba(7,20,35,.97);backdrop-filter:blur(14px);
  padding:16px 0 22px;
}
.mobile-drawer.open{display:block}
.mobile-drawer .m-search{margin-bottom:14px}
.mobile-drawer .m-links{display:flex;flex-direction:column;gap:8px}
.mobile-drawer .m-links a{
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 14px;border-radius:12px;font-size:14.5px;font-weight:600;
  color:var(--text-2);border:1px solid var(--line-soft);background:rgba(12,32,52,.6);
}
.mobile-drawer .m-links a.active{color:#04121F;background:linear-gradient(135deg,var(--teal),#63D6FF);border-color:transparent}
.mobile-drawer .m-cta{margin-top:14px;display:flex}

/* ============ 页头大图 ============ */
.page-hero{
  position:relative;overflow:hidden;
  border-bottom:1px solid var(--line-soft);
  background:linear-gradient(180deg,rgba(10,26,43,.2),rgba(6,16,29,.85));
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center right;
  opacity:.30;filter:saturate(.85);
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(90deg,rgba(6,16,29,.96) 0%,rgba(6,16,29,.86) 46%,rgba(6,16,29,.55) 100%),
    repeating-linear-gradient(0deg,rgba(120,230,255,.05) 0 1px,transparent 1px 3px);
  pointer-events:none;
}
.page-hero .inner{position:relative;z-index:2;padding:44px 0 52px;max-width:820px}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:20px;flex-wrap:wrap}
.crumbs a{color:var(--text-2)}
.crumbs a:hover{color:var(--teal)}
.crumbs i{font-size:10px;color:var(--text-3)}
.crumbs .cur{color:var(--teal);font-weight:600}
.page-hero h1{font-size:clamp(28px,4vw,44px);letter-spacing:.5px;margin:16px 0 16px}
.page-hero h1 span{color:var(--teal)}
.page-hero .sub{color:var(--text-2);font-size:15.5px;line-height:1.9;max-width:700px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.hero-tags .tag{
  font-size:12.5px;padding:6px 13px;border-radius:999px;
  border:1px solid var(--line);background:rgba(12,32,52,.66);color:var(--text-2);
}
.hero-tags .tag i{color:var(--teal);margin-right:6px;font-size:11px}

/* ============ 工具条 ============ */
.toolbar{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  padding:16px 18px;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px);box-shadow:var(--shadow);
  margin-top:-34px;position:relative;z-index:5;
}
.toolbar .t-search{position:relative;flex:1 1 260px;min-width:200px}
.toolbar .t-search i{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--text-3);font-size:13px}
.toolbar .t-search input{
  width:100%;height:46px;border-radius:var(--r-btn);padding:0 14px 0 38px;
  background:rgba(8,24,40,.92);border:1px solid var(--line);outline:none;color:var(--text);
}
.toolbar .t-search input::placeholder{color:var(--text-3)}
.toolbar .t-search input:focus{border-color:rgba(47,230,199,.7);box-shadow:0 0 0 4px rgba(47,230,199,.12)}
.toolbar select{
  height:46px;border-radius:var(--r-btn);padding:0 38px 0 14px;
  background:rgba(8,24,40,.92);border:1px solid var(--line);color:var(--text-2);
  appearance:none;-webkit-appearance:none;outline:none;
  background-image:linear-gradient(45deg,transparent 50%,var(--text-2) 50%),linear-gradient(135deg,var(--text-2) 50%,transparent 50%);
  background-position:calc(100% - 20px) 20px,calc(100% - 14px) 20px;
  background-size:6px 6px,6px 6px;background-repeat:no-repeat;
}
.toolbar select:focus{border-color:rgba(47,230,199,.7);box-shadow:0 0 0 4px rgba(47,230,199,.12)}
.toolbar .t-count{font-size:13px;color:var(--text-3);white-space:nowrap}
.toolbar .t-count b{color:var(--teal);font-family:var(--mono)}

/* ============ 阶梯概览 ============ */
.ladder{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.ladder-card{
  position:relative;padding:22px;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.ladder-card:hover{transform:translateY(-3px);border-color:rgba(47,230,199,.45);box-shadow:var(--shadow-hover)}
.ladder-card .lv{font-family:var(--mono);font-size:12px;letter-spacing:.16em;color:var(--text-3)}
.ladder-card h3{font-size:17px;margin:9px 0 6px}
.ladder-card .gate{font-size:13px;color:var(--amber);margin-bottom:12px}
.ladder-card ul{display:flex;flex-direction:column;gap:7px}
.ladder-card li{font-size:13.5px;color:var(--text-2);display:flex;gap:8px;align-items:flex-start;line-height:1.65}
.ladder-card li::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--teal);margin-top:8px;flex:none}
.ladder-card.is-top{border-color:rgba(47,230,199,.55);box-shadow:0 0 0 1px rgba(47,230,199,.16),var(--shadow)}
.ladder-card .crown{
  position:absolute;top:-11px;right:16px;font-size:11px;font-weight:700;
  padding:3px 10px;border-radius:999px;color:#3B2508;
  background:linear-gradient(135deg,var(--amber),#FFD9A8);
}

/* ============ 时间轴 ============ */
.timeline{position:relative;margin-top:8px}
.timeline::before{
  content:"";position:absolute;left:27px;top:8px;bottom:8px;width:2px;
  background:linear-gradient(180deg,rgba(47,230,199,.55),rgba(46,123,255,.35),rgba(120,230,255,.05));
}
.tl-item{position:relative;padding-left:76px;padding-bottom:26px}
.tl-node{
  position:absolute;left:0;top:2px;width:56px;height:56px;border-radius:16px;
  display:grid;place-items:center;
  font-family:var(--mono);font-size:17px;font-weight:700;color:var(--teal);
  background:linear-gradient(160deg,rgba(14,40,64,.95),rgba(8,24,40,.95));
  border:1px solid rgba(47,230,199,.36);
  box-shadow:0 0 0 6px rgba(6,16,29,.9),0 10px 26px rgba(0,0,0,.4);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.tl-item:hover .tl-node{transform:translateY(-2px);border-color:rgba(47,230,199,.8);box-shadow:0 0 0 6px rgba(6,16,29,.9),0 0 22px rgba(47,230,199,.28)}
.tl-body{
  border-radius:var(--r-card);border:1px solid var(--line);
  background:var(--glass);backdrop-filter:blur(14px);
  padding:22px 24px;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.tl-item:hover .tl-body{transform:translateY(-2px);border-color:rgba(120,230,255,.36);box-shadow:var(--shadow-hover);background:rgba(12,34,56,.72)}
.tl-top{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:10px}
.tl-body h3{font-size:18.5px;margin:0}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:700;padding:4px 11px;border-radius:999px;
  border:1px solid rgba(47,230,199,.35);color:var(--teal);background:rgba(47,230,199,.10);
}
.badge.amber{color:var(--amber);border-color:rgba(255,184,107,.38);background:rgba(255,184,107,.10)}
.badge.blue{color:#8FC0FF;border-color:rgba(46,123,255,.42);background:rgba(46,123,255,.14)}
.tl-body p{color:var(--text-2);font-size:14.5px;line-height:1.85;margin:0 0 12px}
.tl-list{display:flex;flex-direction:column;gap:7px;margin:0 0 14px}
.tl-list li{font-size:13.8px;color:var(--text-2);display:flex;gap:9px;line-height:1.7}
.tl-list li i{color:var(--teal);font-size:11px;margin-top:7px;flex:none}
.tl-meta{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  border-top:1px solid var(--line-soft);padding-top:13px;margin-top:2px}
.tl-meta .meta-line{display:flex;align-items:center;gap:16px;font-size:12.5px;color:var(--text-3);flex-wrap:wrap}
.tl-meta .meta-line i{margin-right:5px}
.tl-link{display:inline-flex;align-items:center;gap:7px;font-size:13.5px;font-weight:700;color:var(--link)}
.tl-link i{transition:transform .2s ease}
.tl-link:hover{color:var(--teal)}
.tl-link:hover i{transform:translateX(4px)}

/* ============ 适用区块 ============ */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.info-card{
  border-radius:var(--r-card);border:1px solid var(--line);
  background:var(--glass);backdrop-filter:blur(14px);
  padding:24px;box-shadow:var(--shadow);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.info-card:hover{transform:translateY(-3px);border-color:rgba(47,230,199,.42);box-shadow:var(--shadow-hover)}
.info-card .ico{
  width:46px;height:46px;border-radius:13px;display:grid;place-items:center;
  font-size:17px;color:var(--teal);
  background:rgba(47,230,199,.10);border:1px solid rgba(47,230,199,.28);
  margin-bottom:16px;
}
.info-card h3{font-size:17.5px;margin-bottom:9px}
.info-card p{color:var(--text-2);font-size:14.3px;line-height:1.82;margin:0}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:340px 1fr;gap:34px;align-items:start}
.faq-aside .note{
  margin-top:18px;padding:18px 20px;border-radius:var(--r-card);
  border:1px solid var(--line);background:rgba(12,32,52,.6);
  font-size:13.5px;color:var(--text-2);line-height:1.8;
}
.faq-aside .note strong{color:var(--teal)}
.faq-list{display:flex;flex-direction:column;gap:0;border-top:1px solid var(--line-soft)}
.faq-item{border-bottom:1px solid var(--line-soft)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 4px;background:transparent;border:0;text-align:left;
  color:var(--text);font-size:16px;font-weight:700;line-height:1.6;
  transition:color .18s ease,background .18s ease;
}
.faq-q:hover{color:var(--teal);background:rgba(47,230,199,.04)}
.faq-q .fi{
  width:28px;height:28px;flex:none;border-radius:50%;
  display:grid;place-items:center;font-size:11px;
  border:1px solid var(--line);color:var(--teal);
  transition:transform .2s ease,border-color .2s ease,background .2s ease;
}
.faq-item.open .faq-q{color:var(--teal)}
.faq-item.open .faq-q .fi{transform:rotate(180deg);background:rgba(47,230,199,.14);border-color:rgba(47,230,199,.6)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease}
.faq-a-inner{padding:0 4px 22px;color:var(--text-2);font-size:14.5px;line-height:1.85}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:22px;border:1px solid rgba(47,230,199,.28);
  background:
    radial-gradient(680px 260px at 88% 0%,rgba(46,123,255,.26),transparent 66%),
    radial-gradient(520px 240px at 6% 110%,rgba(47,230,199,.20),transparent 70%),
    rgba(10,28,48,.82);
  box-shadow:var(--shadow);
  padding:44px 42px;
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(120,230,255,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(120,230,255,.07) 1px,transparent 1px);
  background-size:48px 48px;opacity:.5;
  mask-image:linear-gradient(90deg,transparent,#000 40%,#000 100%);
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 40%,#000 100%);
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-inner h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:10px}
.cta-inner p{margin:0;color:var(--text-2);font-size:14.5px;max-width:560px;line-height:1.85}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ============ 图片区块 ============ */
.figure-block{
  display:grid;grid-template-columns:1.05fr .95fr;gap:34px;align-items:center;
  border-radius:22px;border:1px solid var(--line);
  background:var(--glass);backdrop-filter:blur(14px);
  padding:26px;box-shadow:var(--shadow);
}
.figure-block img{width:100%;border-radius:var(--r-img);object-fit:cover;aspect-ratio:16/10;border:1px solid var(--line-soft)}
.figure-block h3{font-size:21px;margin-bottom:12px}
.figure-block p{color:var(--text-2);font-size:14.5px;line-height:1.85}
.mini-list{display:flex;flex-direction:column;gap:9px;margin-top:6px}
.mini-list li{display:flex;gap:9px;font-size:14px;color:var(--text-2);line-height:1.7}
.mini-list li i{color:var(--teal);font-size:12px;margin-top:6px;flex:none}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:20px;
  border-top:1px solid var(--line-soft);
  background:linear-gradient(180deg,rgba(6,16,29,.4),rgba(4,11,20,.96));
  padding:58px 0 26px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:34px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{color:var(--text-2);font-size:13.8px;line-height:1.85;margin:0 0 16px;max-width:330px}
.footer-contact{display:flex;flex-direction:column;gap:9px}
.footer-contact li{font-size:13.2px;color:var(--text-2);display:flex;align-items:center;gap:9px}
.footer-contact li i{color:var(--teal);font-size:12px;width:14px}
.footer-title{font-size:13px;font-weight:800;letter-spacing:.12em;color:var(--text);margin-bottom:16px;text-transform:uppercase}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:13.8px;color:var(--text-2)}
.footer-links a:hover{color:var(--teal)}
.footer-note{font-size:13.2px;color:var(--text-3);line-height:1.85;margin:0}
.footer-bottom{
  margin-top:38px;padding-top:20px;border-top:1px solid var(--line-soft);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:var(--text-3);
}
.footer-bottom .fl{display:flex;gap:20px;flex-wrap:wrap}

/* ============ 响应式 ============ */
@media (max-width:1100px){
  .ladder{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:26px}
  .footer-grid > div:last-child{grid-column:1/-1}
}
@media (max-width:1023px){
  .container-x{padding:0 24px}
  .header-inner{flex-wrap:wrap;min-height:auto;padding:12px 0}
  .search-shell{order:3;max-width:none;flex:1 1 100%;margin-top:10px}
  .menu-toggle{display:inline-flex}
  .nav-right .btn-ghost{display:none}
  .faq-wrap{grid-template-columns:1fr;gap:24px}
  .figure-block{grid-template-columns:1fr;gap:22px}
  .section{padding:56px 0}
}
@media (max-width:760px){
  .grid-3{grid-template-columns:1fr}
  .ladder{grid-template-columns:1fr}
  .topbar-inner{height:auto;padding:8px 0;flex-direction:column;align-items:flex-start;gap:4px}
  .topbar-inner .tb-right{display:none}
  .timeline::before{left:21px}
  .tl-item{padding-left:58px}
  .tl-node{width:44px;height:44px;border-radius:13px;font-size:14px}
  .tl-body{padding:18px}
  .cta-band{padding:30px 22px}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1/-1}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .toolbar{margin-top:-24px}
}
@media (max-width:520px){
  .container-x{padding:0 16px}
  .footer-grid{grid-template-columns:1fr}
  .brand-name{font-size:16px}
  .page-hero .inner{padding:34px 0 42px}
  .search-shell button{padding:9px 14px}
  .cta-actions .btn{width:100%}
  .tl-item{padding-left:52px;padding-bottom:20px}
  .tl-node{width:38px;height:38px;font-size:12.5px;border-radius:11px}
  .timeline::before{left:18px}
  .hero-tags .tag{font-size:11.8px}
}

/* roulang page: category4 */
:root{
  --bg-0:#06101D;
  --bg-1:#0A1A2B;
  --bg-2:#0E2438;
  --glass:rgba(10,28,48,0.58);
  --glass-strong:rgba(12,34,56,0.82);
  --line:rgba(120,230,255,0.18);
  --line-strong:rgba(120,230,255,0.38);
  --text:#EAF6FF;
  --muted:#9CB4C9;
  --mint:#2FE6C7;
  --blue:#2E7BFF;
  --amber:#FFB86B;
  --link:#7DE9FF;
  --r-card:18px;
  --r-btn:12px;
  --shadow:0 12px 40px rgba(0,0,0,0.35);
  --shadow-hover:0 16px 50px rgba(0,0,0,0.45), 0 0 24px rgba(47,230,199,0.18);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:15px;
  line-height:1.78;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--link);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--mint)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:.2px}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
::selection{background:rgba(47,230,199,.28);color:#fff}
:focus-visible{outline:2px solid var(--mint);outline-offset:3px;border-radius:6px}

/* 背景网格 */
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:
    repeating-linear-gradient(0deg, rgba(120,230,255,.045) 0 1px, transparent 1px 64px),
    repeating-linear-gradient(90deg, rgba(120,230,255,.045) 0 1px, transparent 1px 64px);
  pointer-events:none;
  z-index:0;
  opacity:.7;
}
.page-shell{position:relative;z-index:1}

.container-x{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}

/* ============ 顶部条 ============ */
.topline{
  background:linear-gradient(90deg,rgba(46,123,255,.16),rgba(47,230,199,.12));
  border-bottom:1px solid var(--line);
  font-size:12.5px;
  color:var(--muted);
}
.topline .container-x{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:38px;
  flex-wrap:wrap;
}
.topline .dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--mint);
  display:inline-block;
  margin-right:8px;
  box-shadow:0 0 10px rgba(47,230,199,.9);
}
.topline-right{display:flex;align-items:center;gap:18px}
.topline-right i{color:var(--mint);margin-right:6px}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(6,16,29,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:background .25s ease, box-shadow .25s ease;
}
.site-header.scrolled{
  background:rgba(5,13,24,.94);
  box-shadow:0 10px 34px rgba(0,0,0,.5);
}
.header-main{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:78px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
  color:var(--text);
}
.brand:hover{color:var(--text)}
.brand-mark{
  width:44px;height:44px;
  border-radius:13px;
  display:grid;place-items:center;
  font-weight:800;
  font-size:16px;
  letter-spacing:.5px;
  color:#04121C;
  background:linear-gradient(135deg,var(--mint),var(--blue));
  box-shadow:0 0 22px rgba(47,230,199,.35);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:17px;font-weight:800;letter-spacing:.3px}
.brand-sub{font-size:10.5px;color:var(--muted);letter-spacing:2.6px;font-weight:600}

.search-form{
  flex:1;
  max-width:620px;
  display:flex;
  align-items:center;
  gap:8px;
  height:50px;
  padding:0 6px 0 18px;
  background:rgba(8,24,40,.85);
  border:1px solid var(--line);
  border-radius:999px;
  transition:border-color .2s ease, box-shadow .2s ease;
}
.search-form:focus-within{
  border-color:var(--line-strong);
  box-shadow:0 0 0 3px rgba(47,230,199,.12);
}
.search-form i{color:var(--muted);font-size:15px}
.search-form input{
  flex:1;
  min-width:0;
  height:100%;
  background:transparent;
  border:0;
  outline:none;
  color:var(--text);
  font-size:14.5px;
}
.search-form input::placeholder{color:#6E8AA3}
.search-form button{
  height:38px;
  padding:0 20px;
  border:0;
  border-radius:999px;
  font-size:14px;
  font-weight:700;
  color:#04121C;
  background:linear-gradient(135deg,var(--mint),var(--blue));
  cursor:pointer;
  transition:transform .16s ease, box-shadow .2s ease, filter .2s ease;
}
.search-form button:hover{transform:translateY(-1px);box-shadow:0 0 18px rgba(47,230,199,.45);filter:brightness(1.05)}
.search-form button:active{transform:translateY(0)}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}

.btn-primary{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 24px;
  border-radius:var(--r-btn);
  border:0;
  font-size:15px;
  font-weight:700;
  color:#04121C;
  background:linear-gradient(135deg,var(--mint),var(--blue));
  box-shadow:0 8px 24px rgba(46,123,255,.28),0 0 18px rgba(47,230,199,.22);
  cursor:pointer;
  transition:transform .18s ease, box-shadow .22s ease, filter .2s ease;
}
.btn-primary:hover{color:#04121C;transform:translateY(-2px);box-shadow:0 14px 34px rgba(46,123,255,.4),0 0 28px rgba(47,230,199,.42);filter:brightness(1.04)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 18px rgba(46,123,255,.3)}
.btn-primary.sm{height:42px;padding:0 20px;font-size:14px}

.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 22px;
  border-radius:var(--r-btn);
  border:1px solid var(--line-strong);
  background:rgba(12,34,56,.55);
  color:var(--text);
  font-size:15px;
  font-weight:600;
  transition:border-color .2s ease, background .2s ease, transform .18s ease, color .2s ease;
}
.btn-ghost:hover{
  color:var(--text);
  border-color:var(--mint);
  background:rgba(16,44,70,.78);
  transform:translateY(-2px);
}
.btn-ghost:active{transform:translateY(0)}

.menu-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:11px;
  border:1px solid var(--line);
  background:rgba(12,34,56,.6);
  color:var(--text);
  cursor:pointer;
  font-size:16px;
}

.nav-wrap{padding-bottom:14px}
.nav-chips{
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
}
.chip{
  display:inline-flex;
  align-items:center;
  gap:7px;
  height:34px;
  padding:0 16px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(10,28,48,.6);
  color:#C4DBEC;
  font-size:13.5px;
  font-weight:600;
  white-space:nowrap;
  transition:all .18s ease;
}
.chip:hover{
  color:var(--text);
  border-color:var(--line-strong);
  background:rgba(16,44,70,.8);
  transform:translateY(-1px);
}
.chip.active{
  color:#04121C;
  background:linear-gradient(135deg,var(--mint),var(--blue));
  border-color:transparent;
  box-shadow:0 0 18px rgba(47,230,199,.32);
}

.mobile-panel{
  display:none;
  border-top:1px solid var(--line);
  background:var(--glass-strong);
  backdrop-filter:blur(14px);
  padding:16px 0 20px;
}
.mobile-panel.open{display:block}
.mobile-panel .chip{width:100%;justify-content:flex-start;height:42px;border-radius:12px}
.mobile-panel .m-search{display:flex;margin-bottom:14px}

/* ============ 面包屑 ============ */
.crumb-bar{
  padding:26px 0 0;
  font-size:13px;
  color:var(--muted);
}
.crumb-bar ol{display:flex;flex-wrap:wrap;align-items:center;gap:9px}
.crumb-bar a{color:var(--muted)}
.crumb-bar a:hover{color:var(--mint)}
.crumb-bar li.current{color:var(--mint);font-weight:600}
.crumb-bar .sep{color:#46617A}

/* ============ 页头 Hero ============ */
.page-hero{
  position:relative;
  overflow:hidden;
  border-bottom:1px solid var(--line);
  margin-top:22px;
}
.page-hero-bg{
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  opacity:.28;
  filter:saturate(.9);
}
.page-hero-mask{
  position:absolute;
  inset:0;
  background:
    radial-gradient(900px 420px at 18% 20%, rgba(46,123,255,.22), transparent 70%),
    linear-gradient(180deg, rgba(6,16,29,.72), rgba(6,16,29,.96));
}
.page-hero-inner{
  position:relative;
  padding:56px 0 52px;
  max-width:900px;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:30px;
  padding:0 14px;
  border-radius:999px;
  border:1px solid var(--line-strong);
  background:rgba(47,230,199,.1);
  color:var(--mint);
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.6px;
  margin-bottom:20px;
}
.page-hero h1{
  font-size:clamp(28px,4vw,44px);
  font-weight:800;
  letter-spacing:.5px;
  margin-bottom:18px;
}
.page-hero h1 em{
  font-style:normal;
  background:linear-gradient(120deg,var(--mint),var(--link));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.page-hero .lead{
  color:#CBDFEF;
  font-size:15.5px;
  max-width:720px;
  margin-bottom:8px;
}
.page-hero .lead + .lead{color:var(--muted);font-size:14.5px}

/* 静态筛选条 */
.filter-bar{
  position:relative;
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  align-items:center;
  margin-top:28px;
  padding:14px;
  border-radius:16px;
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
}
.filter-bar .f-search{
  display:flex;
  align-items:center;
  gap:8px;
  flex:1 1 260px;
  height:44px;
  padding:0 14px;
  border-radius:11px;
  background:rgba(6,18,32,.82);
  border:1px solid var(--line);
  transition:border-color .2s ease, box-shadow .2s ease;
}
.filter-bar .f-search:focus-within{border-color:var(--line-strong);box-shadow:0 0 0 3px rgba(47,230,199,.1)}
.filter-bar .f-search i{color:var(--muted)}
.filter-bar .f-search input{
  flex:1;min-width:0;background:transparent;border:0;outline:none;
  color:var(--text);font-size:14px;
}
.filter-bar .f-search input::placeholder{color:#6E8AA3}
.filter-bar select{
  height:44px;
  min-width:150px;
  padding:0 38px 0 14px;
  border-radius:11px;
  border:1px solid var(--line);
  background-color:rgba(6,18,32,.82);
  color:var(--text);
  font-size:14px;
  appearance:none;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%239CB4C9' stroke-width='2'><path d='M6 9l6 6 6-6'/></svg>");
  background-repeat:no-repeat;
  background-position:right 14px center;
  cursor:pointer;
  transition:border-color .2s ease;
}
.filter-bar select:hover{border-color:var(--line-strong)}
.filter-bar .f-btn{
  height:44px;
  padding:0 22px;
  border-radius:11px;
  border:1px solid var(--line-strong);
  background:rgba(12,34,56,.7);
  color:var(--text);
  font-size:14px;
  font-weight:600;
  cursor:pointer;
  transition:all .18s ease;
}
.filter-bar .f-btn:hover{border-color:var(--mint);background:rgba(16,44,70,.9);transform:translateY(-1px)}

/* ============ 区块通用 ============ */
.section{padding:76px 0}
.section.alt{padding-top:0}
.section-head{max-width:720px;margin-bottom:36px}
.section-head h2{
  font-size:clamp(24px,3vw,32px);
  font-weight:800;
  margin-bottom:12px;
}
.section-head p{color:var(--muted);font-size:15px}
.section-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:.8px;
  color:var(--mint);
  margin-bottom:12px;
}
.section-tag::before{
  content:"";width:22px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--mint),rgba(47,230,199,0));
}

/* ============ FAQ ============ */
.faq-panel{
  border-radius:22px;
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
  padding:8px 26px;
}
.faq-item{border-bottom:1px solid rgba(120,230,255,.12)}
.faq-item:last-child{border-bottom:0}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:20px 2px;
  background:none;
  border:0;
  color:var(--text);
  text-align:left;
  cursor:pointer;
  transition:background .18s ease;
}
.faq-q h3{
  font-size:17px;
  font-weight:700;
  line-height:1.5;
}
.faq-q:hover{background:rgba(47,230,199,.04)}
.faq-icon{
  flex-shrink:0;
  width:28px;height:28px;
  display:grid;place-items:center;
  border-radius:50%;
  border:1px solid var(--line);
  color:var(--link);
  font-size:12px;
  transition:transform .2s ease, color .2s ease, border-color .2s ease;
}
.faq-item.open .faq-icon{
  transform:rotate(180deg);
  color:var(--mint);
  border-color:rgba(47,230,199,.55);
}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease}
.faq-a p{
  padding:0 2px 22px;
  color:var(--muted);
  font-size:14.5px;
  line-height:1.8;
  max-width:820px;
}

/* ============ 图文交替列表 ============ */
.alt-list{display:flex;flex-direction:column;gap:26px}
.alt-row{
  display:grid;
  grid-template-columns:minmax(0,0.86fr) minmax(0,1.14fr);
  gap:0;
  border-radius:22px;
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(14px);
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:border-color .22s ease, transform .22s ease, box-shadow .22s ease;
}
.alt-row:hover{
  border-color:var(--line-strong);
  transform:translateY(-3px);
  box-shadow:var(--shadow-hover);
}
.alt-media{
  position:relative;
  min-height:250px;
  overflow:hidden;
}
.alt-media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.alt-row:hover .alt-media img{transform:scale(1.04)}
.alt-media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(6,16,29,.55),rgba(6,16,29,.06) 65%);
}
.alt-num{
  position:absolute;
  left:18px;top:18px;
  z-index:2;
  display:inline-flex;align-items:center;gap:6px;
  height:28px;
  padding:0 12px;
  border-radius:999px;
  background:rgba(6,18,32,.78);
  border:1px solid rgba(47,230,199,.4);
  color:var(--mint);
  font-size:12px;
  font-weight:700;
  letter-spacing:.6px;
  font-variant-numeric:tabular-nums;
}
.alt-body{
  padding:26px 28px;
  display:flex;
  flex-direction:column;
  gap:14px;
}
.alt-row.reverse{grid-template-columns:minmax(0,1.14fr) minmax(0,0.86fr)}
.alt-row.reverse .alt-media{order:2}
.alt-row.reverse .alt-body{order:1}
.alt-badges{display:flex;flex-wrap:wrap;gap:8px}
.badge{
  display:inline-flex;align-items:center;
  height:24px;padding:0 11px;
  border-radius:999px;
  font-size:12px;
  font-weight:700;
  border:1px solid rgba(47,230,199,.3);
  background:rgba(47,230,199,.1);
  color:var(--mint);
}
.badge.amber{
  border-color:rgba(255,184,107,.34);
  background:rgba(255,184,107,.1);
  color:var(--amber);
}
.badge.blue{
  border-color:rgba(46,123,255,.38);
  background:rgba(46,123,255,.12);
  color:var(--link);
}
.alt-body h3{font-size:20px;font-weight:700;line-height:1.45}
.alt-body > p{color:var(--muted);font-size:14.5px;line-height:1.8}
.alt-points{display:flex;flex-direction:column;gap:9px;margin-top:2px}
.alt-points li{
  display:flex;
  gap:10px;
  align-items:flex-start;
  color:#C4DBEC;
  font-size:14px;
  line-height:1.75;
}
.alt-points i{
  color:var(--mint);
  font-size:12px;
  margin-top:6px;
  flex-shrink:0;
}
.alt-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:700;
  color:var(--link);
  margin-top:2px;
  align-self:flex-start;
}
.alt-link i{transition:transform .2s ease}
.alt-link:hover{color:var(--mint)}
.alt-link:hover i{transform:translateX(4px)}

/* ============ CTA ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:24px;
  border:1px solid var(--line-strong);
  background:
    radial-gradient(700px 300px at 15% 20%, rgba(46,123,255,.24), transparent 70%),
    radial-gradient(600px 320px at 85% 80%, rgba(47,230,199,.16), transparent 70%),
    var(--bg-1);
  padding:44px 42px;
  box-shadow:var(--shadow);
}
.cta-band::before{
  content:"";
  position:absolute;inset:0;
  background-image:
    repeating-linear-gradient(0deg, rgba(120,230,255,.06) 0 1px, transparent 1px 42px),
    repeating-linear-gradient(90deg, rgba(120,230,255,.06) 0 1px, transparent 1px 42px);
  pointer-events:none;
}
.cta-inner{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
}
.cta-inner h2{font-size:clamp(22px,2.6vw,30px);font-weight:800;margin-bottom:10px}
.cta-inner p{color:var(--muted);font-size:14.5px;max-width:600px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.back-home{
  margin-top:26px;
  display:flex;
  justify-content:center;
}
.back-home a{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;color:var(--muted);font-weight:600;
}
.back-home a:hover{color:var(--mint)}
.back-home a i{transition:transform .2s ease}
.back-home a:hover i{transform:translateX(-4px)}

/* ============ 页脚 ============ */
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg, rgba(6,16,29,.4), rgba(4,11,20,.96));
  padding:56px 0 26px;
  margin-top:20px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:36px;
}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{color:var(--muted);font-size:13.5px;line-height:1.8;max-width:320px}
.footer-contact{margin-top:18px;display:flex;flex-direction:column;gap:9px}
.footer-contact li{
  color:#B6CCDE;
  font-size:13px;
  display:flex;align-items:center;gap:9px;
}
.footer-contact i{color:var(--mint);width:15px;text-align:center}
.footer-title{
  font-size:14px;
  font-weight:800;
  letter-spacing:.6px;
  margin-bottom:16px;
  color:var(--text);
}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{
  color:var(--muted);
  font-size:13.5px;
  transition:color .18s ease, transform .18s ease;
  width:fit-content;
}
.footer-links a:hover{color:var(--mint);transform:translateX(3px)}
.footer-note{color:var(--muted);font-size:13px;line-height:1.8}
.footer-bottom{
  margin-top:38px;
  padding-top:20px;
  border-top:1px solid rgba(120,230,255,.1);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  flex-wrap:wrap;
  font-size:12.5px;
  color:#7F98AD;
}
.footer-bottom .fl{display:flex;gap:20px;flex-wrap:wrap}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .header-main{flex-wrap:wrap;padding-top:14px;padding-bottom:14px;gap:14px}
  .search-form{order:3;max-width:100%;flex-basis:100%}
  .header-actions{margin-left:auto}
  .menu-toggle{display:inline-flex;align-items:center;justify-content:center}
  .nav-wrap{display:none}
  .page-hero-inner{padding:44px 0 40px}
  .alt-row,
  .alt-row.reverse{grid-template-columns:1fr}
  .alt-row.reverse .alt-media{order:0}
  .alt-row.reverse .alt-body{order:1}
  .alt-media{min-height:210px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:768px){
  .container-x{padding:0 16px}
  .section{padding:52px 0}
  .section.alt{padding-top:0}
  .brand-name{font-size:15.5px}
  .brand-mark{width:40px;height:40px;font-size:14px}
  .page-hero .lead{font-size:14.5px}
  .filter-bar{padding:12px}
  .filter-bar select,
  .filter-bar .f-btn{flex:1 1 140px}
  .faq-panel{padding:6px 16px}
  .faq-q h3{font-size:16px}
  .alt-body{padding:20px}
  .alt-body h3{font-size:18px}
  .cta-band{padding:30px 22px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .footer-grid{grid-template-columns:1fr}
  .topline-right{display:none}
  .cta-actions{width:100%}
  .cta-actions .btn-primary,
  .cta-actions .btn-ghost{flex:1 1 100%}
  .brand-sub{letter-spacing:2px}
  .search-form{height:46px;padding-left:14px}
  .search-form button{padding:0 14px;font-size:13px}
}