/* roulang page: index */
:root{
  --bg-900:#060E18;
  --bg-800:#0A1626;
  --surface:#0F2237;
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.06);
  --brand:#2EC5FF;
  --brand-hover:#58D6FF;
  --lime:#C6FF4A;
  --amber:#FFB43A;
  --danger:#FF5C7A;
  --text-100:#F2F7FF;
  --text-300:#A9BCD2;
  --r-card:18px;
  --r-panel:20px;
  --r-img:14px;
  --r-input:12px;
  --r-pill:999px;
  --shadow-card:0 18px 48px rgba(4,12,24,.55);
  --shadow-glow:0 10px 28px rgba(46,197,255,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
  --nav-h:116px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--bg-900);
  color:var(--text-100);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--brand-hover);}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.28;letter-spacing:0;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:6px;}
::selection{background:rgba(46,197,255,.32);color:#fff;}

.container-xl{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media (min-width:992px){.container-xl{padding-left:32px;padding-right:32px;}}

.section{padding:64px 0;scroll-margin-top:130px;}
@media (min-width:992px){.section{padding:96px 0;}}
.section-head{margin-bottom:36px;max-width:720px;}
.section-head h2{font-size:clamp(24px,2.8vw,38px);line-height:1.28;margin-bottom:12px;}
.section-head p{color:var(--text-300);font-size:15.5px;}
.row-between{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;max-width:none;flex-wrap:wrap;}

/* ============ 品牌 ============ */
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text-100);flex:0 0 auto;}
.brand:hover{color:var(--text-100);}
.brand-mark{
  width:38px;height:38px;border-radius:11px;flex:0 0 auto;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(150deg,rgba(46,197,255,.22),rgba(198,255,74,.10));
  border:1.5px solid rgba(46,197,255,.72);
  box-shadow:0 0 18px rgba(46,197,255,.28);
}
.brand-mark svg{width:18px;height:18px;display:block;}
.brand-text{font-weight:700;letter-spacing:.5px;font-size:17px;line-height:1.2;display:inline-flex;align-items:baseline;gap:6px;}
.brand-sub{font-size:12px;font-weight:400;color:var(--text-300);letter-spacing:.5px;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(7,15,28,.82);
  -webkit-backdrop-filter:blur(16px) saturate(130%);
  backdrop-filter:blur(16px) saturate(130%);
  border-bottom:1px solid var(--line);
}
@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){
  .site-header{background:#0A1626;}
}
.topbar-inner{display:flex;align-items:center;gap:24px;height:68px;}
.search{position:relative;flex:1 1 auto;max-width:420px;}
.search-input{
  width:100%;height:42px;padding:0 44px 0 16px;
  background:rgba(6,14,24,.72);
  border:1px solid var(--line);
  border-radius:var(--r-input);
  color:var(--text-100);font-size:14px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.search-input::placeholder{color:rgba(169,188,210,.6);}
.search-input:focus{outline:none;border-color:var(--lime);box-shadow:0 0 0 3px rgba(198,255,74,.18);background:rgba(6,14,24,.95);}
.search-icon{position:absolute;right:14px;top:50%;transform:translateY(-50%);width:16px;height:16px;color:var(--text-300);pointer-events:none;}
.topbar-actions{display:flex;align-items:center;gap:12px;margin-left:auto;flex:0 0 auto;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  background:rgba(46,197,255,.08);border:1px solid var(--line);
  color:var(--text-100);align-items:center;justify-content:center;
  transition:background .2s var(--ease),border-color .2s var(--ease);
}
.nav-toggle:hover{background:rgba(46,197,255,.18);border-color:rgba(46,197,255,.45);}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

.channel-bar{border-top:1px solid var(--line-soft);position:relative;}
.channel-inner{
  display:flex;align-items:center;gap:10px;height:48px;
  overflow-x:auto;scroll-snap-type:x proximity;
  -ms-overflow-style:none;scrollbar-width:none;
}
.channel-inner::-webkit-scrollbar{display:none;}
.chan{
  flex:0 0 auto;scroll-snap-align:start;
  padding:6px 16px;border-radius:var(--r-pill);
  font-size:14px;color:var(--text-300);
  border:1px solid transparent;white-space:nowrap;
  transition:color .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);
}
.chan:hover{color:var(--text-100);background:rgba(46,197,255,.08);}
.chan.is-active{background:rgba(46,197,255,.16);color:var(--brand);border-color:rgba(46,197,255,.45);}

/* 移动端抽屉 */
.drawer{
  position:fixed;inset:0;z-index:1200;
  background:rgba(6,14,24,.96);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  padding:20px;
  display:flex;flex-direction:column;gap:10px;
  transform:translateY(-100%);opacity:0;visibility:hidden;
  transition:transform .32s var(--ease),opacity .28s var(--ease),visibility .28s;
  overflow-y:auto;
}
.drawer.is-open{transform:translateY(0);opacity:1;visibility:visible;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.drawer-close{width:42px;height:42px;border-radius:12px;background:rgba(46,197,255,.1);border:1px solid var(--line);color:var(--text-100);font-size:20px;line-height:1;}
.drawer-link{
  display:block;padding:15px 18px;border-radius:14px;
  background:rgba(15,34,55,.8);border:1px solid var(--line);
  color:var(--text-100);font-size:16px;
}
.drawer-link:hover{color:var(--brand);border-color:rgba(46,197,255,.45);}
.drawer .btn{margin-top:16px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:12px;font-weight:600;font-size:15px;
  padding:13px 26px;border:1px solid transparent;line-height:1.2;
  cursor:pointer;
  transition:transform .18s var(--ease),box-shadow .24s var(--ease),background .24s var(--ease),border-color .24s var(--ease),color .24s var(--ease);
}
.btn-main{
  background:linear-gradient(120deg,#2EC5FF 0%,#57D8DC 55%,#9BEBA8 100%);
  color:#04121C;
  border-color:rgba(255,255,255,.18);
  box-shadow:var(--shadow-glow);
}
.btn-main:hover{color:#04121C;transform:translateY(-2px);box-shadow:0 14px 36px rgba(46,197,255,.45);border-color:rgba(255,255,255,.42);}
.btn-main:active{transform:translateY(1px);box-shadow:0 6px 18px rgba(46,197,255,.32);}
.btn-ghost{
  background:transparent;color:var(--brand);
  border:1px solid rgba(46,197,255,.62);
}
.btn-ghost:hover{background:rgba(46,197,255,.12);color:var(--brand-hover);border-color:var(--brand);}
.btn-ghost:active{background:rgba(46,197,255,.2);}
.btn-sm{padding:9px 18px;font-size:14px;}
.text-link{color:var(--brand);font-size:14.5px;font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.text-link:hover{gap:10px;}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;padding:56px 0 72px;scroll-margin-top:130px;}
@media (min-width:992px){.hero{padding:76px 0 96px;}}
.hero-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;z-index:0;}
.hero-bg::after{content:"";position:absolute;inset:0;background:rgba(6,14,24,.72);}
.hero::before{
  content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:48px 48px;
}
.hero::after{
  content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background:radial-gradient(900px 420px at 18% -10%,rgba(46,197,255,.30),transparent 70%);
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1fr;gap:40px;align-items:center;}
@media (min-width:992px){.hero-inner{grid-template-columns:7fr 5fr;gap:48px;}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.08em;color:var(--brand);
  padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(46,197,255,.10);border:1px solid rgba(46,197,255,.32);
  margin-bottom:20px;
}
.hero h1{font-size:clamp(30px,4.4vw,52px);line-height:1.2;margin-bottom:18px;}
.hero-sub{color:var(--text-300);font-size:16.5px;margin-bottom:28px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;}
.hero-badges li{
  font-size:12px;letter-spacing:.04em;color:var(--text-300);
  padding:6px 14px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:rgba(15,34,55,.6);
}
.hero-visual{position:relative;display:none;}
@media (min-width:992px){.hero-visual{display:block;min-height:340px;}}
.hero-panel{
  position:absolute;border-radius:var(--r-panel);overflow:hidden;
  border:1px solid var(--line);
  box-shadow:0 24px 60px rgba(4,12,24,.6),0 0 44px rgba(46,197,255,.2);
}
.hero-panel img{border-radius:0;width:100%;height:100%;object-fit:cover;}
.hero-panel-a{top:0;left:0;width:80%;aspect-ratio:16/10;z-index:2;}
.hero-panel-b{
  right:0;bottom:0;width:56%;z-index:3;
  background:rgba(15,34,55,.94);
  padding:18px;display:grid;gap:12px;
}
.mini-stat{display:flex;align-items:baseline;gap:10px;}
.mini-num{font-size:24px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;}
.mini-label{font-size:12.5px;color:var(--text-300);}

/* ============ 痛点区 ============ */
.pain-grid{display:grid;grid-template-columns:1fr;gap:32px;}
@media (min-width:992px){.pain-grid{grid-template-columns:5fr 7fr;gap:56px;}}
.pain-list{border-top:1px solid var(--line);}
.pain-item{
  display:flex;gap:20px;padding:22px 12px;
  border-bottom:1px solid var(--line);
  transition:background .22s var(--ease);
}
.pain-item:hover{background:rgba(46,197,255,.05);}
.pain-num{
  font-size:28px;font-weight:700;color:var(--brand);
  font-variant-numeric:tabular-nums;line-height:1.1;flex:0 0 auto;width:52px;
}
.pain-item h3{font-size:18px;margin-bottom:6px;}
.pain-item p{color:var(--text-300);font-size:14.5px;}

/* ============ 解决方案 ============ */
.sol-block{display:grid;grid-template-columns:1fr;gap:32px;margin-bottom:56px;align-items:center;}
.sol-block:last-child{margin-bottom:0;}
@media (min-width:992px){
  .sol-block{grid-template-columns:1fr 1fr;gap:56px;margin-bottom:72px;}
  .sol-block.rev .sol-text{order:2;}
  .sol-block.rev .sol-media{order:1;}
}
.sol-tag{
  display:inline-block;font-size:12px;letter-spacing:.06em;
  color:var(--lime);padding:5px 13px;border-radius:var(--r-pill);
  background:rgba(198,255,74,.10);border:1px solid rgba(198,255,74,.32);
  margin-bottom:16px;
}
.sol-text h3{font-size:clamp(20px,2.2vw,26px);margin-bottom:14px;}
.sol-text p{color:var(--text-300);font-size:15.5px;margin-bottom:18px;}
.check-list{display:grid;gap:10px;}
.check-list li{position:relative;padding-left:26px;font-size:14.5px;color:var(--text-300);}
.check-list li::before{
  content:"";position:absolute;left:0;top:9px;width:14px;height:14px;
  border-radius:5px;background:rgba(46,197,255,.16);
  border:1px solid rgba(46,197,255,.6);
}
.check-list li::after{
  content:"";position:absolute;left:5px;top:12px;width:4px;height:7px;
  border:solid var(--brand);border-width:0 2px 2px 0;transform:rotate(45deg);
}
.sol-media{position:relative;}
.sol-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border:1px solid var(--line);border-radius:var(--r-img);
  transition:transform .24s var(--ease),border-color .24s var(--ease);
}
.sol-media::after{
  content:"";position:absolute;right:-6px;bottom:-6px;width:80px;height:80px;
  background:radial-gradient(circle,rgba(46,197,255,.45),transparent 70%);
  filter:blur(6px);pointer-events:none;
}

/* ============ 数据带 ============ */
.stats-band{
  background:rgba(15,34,55,.72);
  border:1px solid var(--line);
  border-radius:var(--r-panel);
  padding:34px 24px;
  box-shadow:var(--shadow-card);
  -webkit-backdrop-filter:blur(14px) saturate(130%);
  backdrop-filter:blur(14px) saturate(130%);
}
@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){
  .stats-band{background:#0F2237;}
}
.stats-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
@media (min-width:768px){.stats-grid{grid-template-columns:repeat(4,1fr);gap:28px;}}
.stat-num{font-size:clamp(30px,3.6vw,40px);font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.1;}
.stat-label{font-size:13px;color:var(--text-300);margin-top:6px;}
.stat-bar{height:6px;border-radius:99px;margin-top:28px;background:linear-gradient(90deg,#2EC5FF 0%,#7BE8B0 55%,#C6FF4A 100%);}

/* ============ 证言横滑 ============ */
.tst-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:24px;flex-wrap:wrap;}
.tst-arrows{display:none;gap:10px;}
@media (min-width:992px){.tst-arrows{display:flex;}}
.tst-arrow{
  width:42px;height:42px;border-radius:50%;
  background:rgba(15,34,55,.85);border:1px solid var(--line);
  color:var(--text-100);font-size:16px;line-height:1;
  display:inline-flex;align-items:center;justify-content:center;
  transition:border-color .2s var(--ease),background .2s var(--ease),color .2s var(--ease);
}
.tst-arrow:hover{border-color:rgba(46,197,255,.6);color:var(--brand);background:rgba(46,197,255,.12);}
.tst-track{
  display:flex;gap:20px;overflow-x:auto;
  scroll-snap-type:x mandatory;
  padding:4px 2px 12px;
  -ms-overflow-style:none;scrollbar-width:none;
}
.tst-track::-webkit-scrollbar{display:none;}
.tst-card{
  flex:0 0 320px;scroll-snap-align:start;
  position:relative;
  background:rgba(15,34,55,.78);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px 24px 22px;
  transition:border-color .24s var(--ease),transform .24s var(--ease);
}
@media (max-width:575px){.tst-card{flex:0 0 84%;}}
.tst-card:hover{border-color:rgba(46,197,255,.45);transform:translateY(-3px);}
.tst-card::before{
  content:"“";position:absolute;left:16px;top:-6px;
  font-size:56px;line-height:1;color:rgba(46,197,255,.22);font-family:Georgia,serif;
}
.tst-card p{color:var(--text-100);font-size:15px;margin:14px 0 20px;position:relative;z-index:1;}
.tst-user{display:flex;align-items:center;gap:12px;}
.tst-avatar{
  width:40px;height:40px;border-radius:50%;flex:0 0 auto;
  background:linear-gradient(140deg,rgba(46,197,255,.5),rgba(198,255,74,.35));
  border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;color:#04121C;
}
.tst-name{font-size:14px;font-weight:600;}
.tst-role{font-size:12px;color:var(--text-300);}

/* ============ 最新信息 CMS ============ */
.news-grid{display:grid;grid-template-columns:1fr;gap:24px;}
@media (min-width:768px){.news-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:992px){.news-grid{grid-template-columns:repeat(3,1fr);}}
.news-card{
  display:flex;flex-direction:column;
  background:rgba(15,34,55,.72);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  transition:border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
}
.news-card:hover{border-color:rgba(46,197,255,.45);transform:translateY(-4px);box-shadow:var(--shadow-card);}
.news-thumb{display:block;overflow:hidden;aspect-ratio:16/9;background:var(--bg-800);}
.news-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .24s var(--ease);}
.news-card:hover .news-thumb img{transform:scale(1.04);}
.news-body{padding:20px;display:flex;flex-direction:column;flex:1 1 auto;}
.news-cat{
  align-self:flex-start;
  font-size:12px;letter-spacing:.04em;color:var(--brand);
  padding:3px 11px;border-radius:var(--r-pill);
  border:1px solid rgba(46,197,255,.45);
  margin-bottom:12px;
}
.news-body h3{font-size:17px;line-height:1.5;margin-bottom:10px;}
.news-body h3 a{color:var(--text-100);}
.news-body h3 a:hover{color:var(--brand);}
.news-sum{
  color:var(--text-300);font-size:14px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  margin-bottom:16px;
}
.news-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:12.5px;color:var(--text-300);
  padding-top:14px;border-top:1px solid var(--line-soft);
}
.news-meta a{font-weight:600;}
.empty-state{
  border:1px dashed rgba(255,255,255,.18);
  border-radius:var(--r-card);
  background:rgba(15,34,55,.4);
  padding:48px 24px;text-align:center;
}
.empty-state .empty-icon{
  width:52px;height:52px;border-radius:16px;margin:0 auto 16px;
  background:rgba(46,197,255,.12);border:1px solid rgba(46,197,255,.4);
  display:flex;align-items:center;justify-content:center;color:var(--brand);font-size:22px;font-weight:700;
}
.empty-state p{color:var(--text-300);font-size:14.5px;margin-bottom:16px;}

/* ============ 卡片通用 ============ */
.card-glass{
  background:rgba(15,34,55,.72);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  -webkit-backdrop-filter:blur(14px) saturate(130%);
  backdrop-filter:blur(14px) saturate(130%);
}
@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){
  .card-glass{background:#0F2237;}
}

/* ============ FAQ ============ */
.acc .accordion-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:14px;
  overflow:hidden;
  margin-bottom:12px;
}
.acc .accordion-item:last-child{margin-bottom:0;}
.acc .accordion-header{margin:0;}
.acc .accordion-button{
  background:transparent;
  color:var(--text-100);
  font-weight:600;font-size:16px;line-height:1.5;
  padding:18px 56px 18px 22px;
  box-shadow:none;
  border-left:3px solid transparent;
  border-radius:0;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.acc .accordion-button:not(.collapsed){
  background:rgba(46,197,255,.07);
  color:var(--brand);
  border-left-color:var(--brand);
  box-shadow:none;
}
.acc .accordion-button:focus{box-shadow:none;outline:2px solid var(--lime);outline-offset:-2px;}
.acc .accordion-button::after{display:none;}
.acc .accordion-button::before{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-size:22px;line-height:1;color:var(--brand);font-weight:400;
}
.acc .accordion-button:not(.collapsed)::before{content:"−";}
.acc .accordion-body{
  padding:0 22px 20px;
  color:var(--text-300);font-size:14.5px;line-height:1.8;
  border-left:3px solid var(--brand);
}

/* ============ CTA 表单 ============ */
.cta-wrap{
  position:relative;overflow:hidden;
  border-radius:var(--r-panel);
  border:1px solid var(--line);
  background:rgba(15,34,55,.78);
  padding:36px 24px;
  box-shadow:var(--shadow-card);
}
@media (min-width:768px){.cta-wrap{padding:52px 44px;}}
.cta-wrap::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(620px 300px at 88% -20%,rgba(198,255,74,.14),transparent 70%),
             radial-gradient(700px 340px at 0% 110%,rgba(46,197,255,.20),transparent 70%);
}
.cta-grid{position:relative;z-index:1;display:grid;grid-template-columns:1fr;gap:36px;}
@media (min-width:992px){.cta-grid{grid-template-columns:5fr 7fr;gap:52px;}}
.cta-copy h2{font-size:clamp(24px,2.8vw,34px);margin-bottom:14px;}
.cta-copy p{color:var(--text-300);font-size:15px;margin-bottom:22px;}
.cta-points{display:grid;gap:12px;}
.cta-points li{display:flex;gap:10px;font-size:14px;color:var(--text-300);}
.cta-points li b{color:var(--brand);font-weight:700;}
.form-label{display:block;font-size:13px;color:var(--text-300);margin-bottom:7px;}
.form-control,.form-select{
  width:100%;
  background:rgba(6,14,24,.72);
  border:1px solid var(--line);
  border-radius:var(--r-input);
  color:var(--text-100);
  font-size:14.5px;
  padding:12px 14px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.form-control::placeholder{color:rgba(169,188,210,.6);}
.form-control:focus,.form-select:focus{
  outline:none;border-color:var(--lime);
  box-shadow:0 0 0 3px rgba(198,255,74,.18);
  background:rgba(6,14,24,.95);
  color:var(--text-100);
}
.form-select option{background:#0A1626;color:var(--text-100);}
.form-control.is-invalid,.form-select.is-invalid{border-color:var(--danger);}
.form-error{font-size:12px;color:var(--danger);margin-top:6px;display:none;}
.form-group{margin-bottom:16px;}
.form-row{display:grid;grid-template-columns:1fr;gap:16px;}
@media (min-width:576px){.form-row{grid-template-columns:1fr 1fr;}}
.form-success{
  display:none;
  margin-top:16px;
  padding:12px 16px;
  border-radius:var(--r-input);
  background:rgba(198,255,74,.10);
  border:1px solid rgba(198,255,74,.42);
  color:var(--lime);
  font-size:14px;
}
.form-success.is-on{display:block;}

/* ============ 页脚 ============ */
.site-footer{
  border-top:1px solid var(--line);
  background:var(--bg-800);
  margin-top:8px;
}
.footer-grid{
  display:grid;grid-template-columns:1fr;gap:36px;
  padding-top:56px;padding-bottom:40px;
}
@media (min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;}}
.f-brand p{color:var(--text-300);font-size:14px;margin-top:16px;max-width:280px;}
.f-col h4{font-size:14px;color:var(--text-100);margin-bottom:16px;letter-spacing:.02em;}
.f-col ul{display:grid;gap:10px;}
.f-col a,.f-col li{color:var(--text-300);font-size:14px;}
.f-col a:hover{color:var(--brand);}
.footer-bottom{
  border-top:1px solid var(--line);
  padding-top:20px;padding-bottom:26px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:12px;color:var(--text-300);
}
.footer-bottom a{color:var(--text-300);}
.footer-bottom a:hover{color:var(--brand);}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
}

/* roulang page: article */
:root{
  --bg-900:#060E18;
  --bg-800:#0A1626;
  --surface:#0F2237;
  --surface-2:#122A44;
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.06);
  --brand:#2EC5FF;
  --brand-hover:#58D6FF;
  --lime:#C6FF4A;
  --amber:#FFB43A;
  --danger:#FF5C7A;
  --text-100:#F2F7FF;
  --text-300:#A9BCD2;
  --r-card:18px;
  --r-panel:20px;
  --r-img:14px;
  --r-input:12px;
  --shadow-card:0 18px 48px rgba(4,12,24,.55);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-900);
  color:var(--text-100);
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--brand-hover)}
button{font-family:inherit}
h1,h2,h3,h4,h5{margin:0;font-weight:700;letter-spacing:0}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:6px}

.container-xl{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(7,15,28,.82);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.topbar{height:68px;display:flex;align-items:center;gap:20px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text-100);flex:0 0 auto}
.brand:hover{color:var(--text-100)}
.brand-mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;flex:0 0 auto;
  background:linear-gradient(140deg,rgba(46,197,255,.26),rgba(198,255,74,.14));
  border:1px solid rgba(46,197,255,.45);
  box-shadow:0 0 0 4px rgba(46,197,255,.06);
}
.brand-mark svg{width:22px;height:22px}
.brand-text{display:flex;flex-direction:column;font-size:17px;font-weight:700;letter-spacing:.5px;line-height:1.15}
.brand-sub{font-size:12px;font-weight:400;color:var(--text-300);letter-spacing:.08em;margin-top:2px}
.nav-search{position:relative;flex:1 1 auto;max-width:360px;margin-left:auto}
.nav-search input{
  width:100%;height:42px;border-radius:999px;padding:0 44px 0 18px;font-size:14px;
  background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--text-100);
  outline:none;transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s;
}
.nav-search input::placeholder{color:rgba(169,188,210,.6)}
.nav-search input:focus{border-color:var(--lime);box-shadow:0 0 0 3px rgba(198,255,74,.16);background:rgba(255,255,255,.06)}
.nav-search .s-icon{position:absolute;right:16px;top:50%;transform:translateY(-50%);color:var(--text-300);pointer-events:none;display:flex}
.nav-cta{flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.05);flex-direction:column;align-items:center;justify-content:center;gap:5px;
  cursor:pointer;transition:.2s var(--ease);
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text-100);transition:.24s var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.btn-glow{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;border-radius:999px;border:1px solid rgba(255,255,255,.22);
  font-size:15px;font-weight:600;color:#04121C;cursor:pointer;
  background:linear-gradient(100deg,#2EC5FF 0%,#5FE0FF 55%,#B7F06B 100%);
  box-shadow:0 10px 28px rgba(46,197,255,.28);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.btn-glow:hover{transform:translateY(-2px);color:#04121C;box-shadow:0 16px 38px rgba(46,197,255,.45);border-color:rgba(198,255,74,.7)}
.btn-glow:active{transform:translateY(1px)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;border-radius:999px;font-size:15px;font-weight:600;
  border:1px solid rgba(46,197,255,.55);background:transparent;color:var(--brand);
  transition:.24s var(--ease);
}
.btn-ghost:hover{background:rgba(46,197,255,.12);color:var(--brand-hover);border-color:rgba(46,197,255,.8)}

/* 频道 Tabs */
.channel-bar{
  position:sticky;top:68px;z-index:1020;
  background:rgba(10,22,38,.92);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.channel-inner{
  height:48px;display:flex;align-items:center;gap:8px;
  overflow-x:auto;scroll-snap-type:x proximity;-webkit-overflow-scrolling:touch;
  scrollbar-width:none;
}
.channel-inner::-webkit-scrollbar{display:none}
.chan{
  flex:0 0 auto;scroll-snap-align:start;
  padding:6px 16px;border-radius:999px;font-size:14px;color:var(--text-300);
  border:1px solid transparent;transition:.2s var(--ease);white-space:nowrap;
}
.chan:hover{color:var(--text-100);background:rgba(255,255,255,.06)}
.chan.is-active{background:rgba(46,197,255,.16);color:var(--brand);border-color:rgba(46,197,255,.45)}

/* 移动端抽屉 */
.nav-drawer{
  position:fixed;left:0;right:0;top:116px;bottom:0;z-index:1015;display:none;
  background:rgba(6,14,24,.97);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  padding:24px 20px 48px;overflow-y:auto;
}
.nav-drawer.is-open{display:block}
.drawer-inner{max-width:520px;margin:0 auto;display:flex;flex-direction:column;gap:8px}
.drawer-inner .d-link{
  padding:14px 16px;border-radius:14px;border:1px solid var(--line);
  color:var(--text-100);font-size:15px;background:rgba(255,255,255,.03);
  transition:.2s var(--ease);
}
.drawer-inner .d-link:hover{border-color:rgba(46,197,255,.45);background:rgba(46,197,255,.10)}
.drawer-inner .d-cta{margin-top:10px}

/* ============ 文章头部 ============ */
.article-head{
  position:relative;overflow:hidden;
  padding:30px 0 42px;
  border-bottom:1px solid var(--line);
  background:
    linear-gradient(180deg,rgba(6,14,24,.80),rgba(6,14,24,.95)),
    url(/assets/images/backpic/back-2.png) center/cover no-repeat;
}
.article-head::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(760px 300px at 50% -12%,rgba(46,197,255,.22),transparent 68%);
}
.article-head::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:48px 48px;
  -webkit-mask-image:radial-gradient(620px 260px at 50% 0%,#000 0%,transparent 82%);
  mask-image:radial-gradient(620px 260px at 50% 0%,#000 0%,transparent 82%);
}
.head-inner{position:relative;z-index:1;text-align:center;max-width:880px;margin:0 auto}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:8px;
  font-size:13px;color:var(--text-300);margin-bottom:18px;
}
.crumb a{color:var(--text-300)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:rgba(169,188,210,.5)}
.crumb .current{color:var(--text-100)}
.cat-pill{
  display:inline-block;font-size:12px;letter-spacing:.04em;padding:5px 14px;border-radius:999px;
  color:var(--brand);border:1px solid rgba(46,197,255,.45);background:rgba(46,197,255,.10);
  margin-bottom:16px;
}
.article-head h1{
  font-size:clamp(26px,3.6vw,42px);line-height:1.3;font-weight:700;
  margin:0 auto;max-width:860px;letter-spacing:0;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:12px;
  margin-top:20px;font-size:13.5px;color:var(--text-300);
}
.meta-row .dot{color:rgba(169,188,210,.45)}

/* ============ 正文 ============ */
.article-main{padding:0 0 90px}
.article-stage{padding-top:44px}
.cover-figure{
  max-width:860px;margin:0 auto;border-radius:var(--r-img);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-card);
}
.cover-figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
.cover-figure figcaption{font-size:13px;color:var(--text-300);text-align:center;padding:12px 14px;background:rgba(255,255,255,.03)}
.prose{
  max-width:780px;margin:0 auto;font-size:16px;line-height:1.9;color:rgba(242,247,255,.92);
}
.prose p{margin:0 0 20px}
.prose h2{
  font-size:clamp(21px,2.3vw,28px);line-height:1.4;margin:40px 0 16px;padding-left:16px;
  border-left:4px solid var(--brand);font-weight:700;color:var(--text-100);
}
.prose h3{font-size:20px;line-height:1.45;margin:30px 0 12px;color:var(--text-100)}
.prose h4{font-size:17px;line-height:1.5;margin:24px 0 10px;color:var(--text-100)}
.prose a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;text-decoration-color:rgba(46,197,255,.5)}
.prose a:hover{color:var(--brand-hover);text-decoration-color:var(--brand-hover)}
.prose ul,.prose ol{padding-left:22px;margin:0 0 20px}
.prose ul li{list-style:disc;margin-bottom:8px}
.prose ol li{list-style:decimal;margin-bottom:8px}
.prose blockquote{
  margin:28px 0;padding:18px 22px;border-left:3px solid var(--lime);
  background:rgba(255,255,255,.045);border-radius:0 14px 14px 0;color:var(--text-300);
}
.prose blockquote p:last-child{margin-bottom:0}
.prose img{border-radius:14px;border:1px solid var(--line);margin:26px auto;height:auto}
.prose figure{margin:26px 0}
.prose figcaption{font-size:13px;color:var(--text-300);text-align:center;margin-top:10px}
.prose table{
  width:100%;border-collapse:collapse;margin:26px 0;font-size:14.5px;
  border:1px solid var(--line);border-radius:12px;overflow:hidden;display:table;
}
.prose thead th{background:rgba(46,197,255,.14);color:var(--text-100);text-align:left;padding:12px 14px;font-weight:600}
.prose tbody td{padding:11px 14px;border-top:1px solid var(--line);color:var(--text-300)}
.prose tbody tr:nth-child(odd){background:rgba(255,255,255,.03)}
.prose code{background:rgba(46,197,255,.14);color:var(--brand);padding:2px 7px;border-radius:6px;font-size:.92em}
.prose hr{border:0;border-top:1px solid var(--line);margin:36px 0}

.empty-state{
  max-width:620px;margin:0 auto;text-align:center;padding:56px 28px;
  border:1px dashed rgba(255,255,255,.18);border-radius:var(--r-panel);
  background:rgba(15,34,55,.6);
}
.empty-state h2{font-size:22px;margin-bottom:10px}
.empty-state p{color:var(--text-300);font-size:14.5px;margin-bottom:22px}

/* 标签行 */
.tag-row{
  max-width:780px;margin:44px auto 0;display:flex;flex-wrap:wrap;gap:10px;justify-content:center;
}
.tag-pill{
  font-size:13px;padding:6px 15px;border-radius:999px;letter-spacing:.04em;
  border:1px solid rgba(46,197,255,.4);color:var(--brand);background:rgba(46,197,255,.08);
  transition:.2s var(--ease);
}
.tag-pill:hover{background:rgba(46,197,255,.18);color:var(--brand-hover);border-color:rgba(46,197,255,.7)}

/* 相关推荐 */
.rel-section{padding-top:76px}
.sec-head{max-width:780px;margin:0 auto 28px;text-align:center}
.sec-head h2{font-size:clamp(22px,2.4vw,30px);line-height:1.32}
.sec-head p{color:var(--text-300);font-size:14.5px;margin-top:10px}
.rel-grid{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;
  max-width:1040px;margin:0 auto;
}
.post-card{
  display:flex;flex-direction:column;height:100%;overflow:hidden;color:inherit;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.post-card:hover{
  transform:translateY(-4px);color:inherit;
  border-color:rgba(46,197,255,.45);box-shadow:var(--shadow-card);
}
.post-card .thumb{aspect-ratio:16/9;overflow:hidden;background:var(--surface-2)}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .24s var(--ease)}
.post-card:hover .thumb img{transform:scale(1.04)}
.post-card .pbody{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.post-card .pbadge{
  align-self:flex-start;font-size:12px;letter-spacing:.04em;padding:3px 11px;border-radius:999px;
  color:var(--brand);border:1px solid rgba(46,197,255,.45);background:rgba(46,197,255,.08);
}
.post-card h3{
  font-size:16.5px;line-height:1.5;font-weight:600;color:var(--text-100);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card p{
  font-size:14px;color:var(--text-300);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card .pmeta{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line-soft);
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:12.5px;color:var(--text-300);
}
.post-card .pmeta .go{color:var(--brand);display:inline-flex;align-items:center;gap:4px}
.post-card:hover .pmeta .go{color:var(--brand-hover)}

.back-band{max-width:780px;margin:56px auto 0;display:flex;justify-content:center}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:100px;border-top:1px solid var(--line);
  background:var(--bg-800);padding-top:64px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:52px}
.f-brand .brand{margin-bottom:16px}
.f-brand p{font-size:14px;color:var(--text-300);line-height:1.85;max-width:320px}
.f-col h4{font-size:14px;font-weight:600;color:var(--text-100);letter-spacing:.04em;margin-bottom:16px}
.f-col ul{display:flex;flex-direction:column;gap:10px}
.f-col li{font-size:13.5px;color:var(--text-300);line-height:1.6}
.f-col a{color:var(--text-300)}
.f-col a:hover{color:var(--brand)}
.footer-bottom{
  border-top:1px solid var(--line);padding-top:20px;padding-bottom:24px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:12px;color:rgba(169,188,210,.75);
}

@media (max-width:1199px){
  .rel-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media (max-width:991px){
  .nav-search{display:none}
  .nav-cta{display:none}
  .nav-toggle{display:flex;margin-left:auto}
  .topbar{gap:14px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .article-head{padding:24px 0 34px}
  .article-stage{padding-top:32px}
  .rel-section{padding-top:60px}
}
@media (min-width:992px){
  .nav-toggle{display:none}
  .nav-drawer{display:none !important}
  .container-xl{padding-left:32px;padding-right:32px}
}
@media (max-width:767px){
  .prose{font-size:15.5px;line-height:1.8}
  .prose h2{margin-top:34px;padding-left:12px;border-left-width:3px}
  .rel-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{margin-top:72px;padding-top:48px}
  .footer-bottom{flex-direction:column;gap:6px}
  .brand-text{font-size:16px}
  .meta-row{gap:8px;font-size:13px}
}
@media (max-width:575px){
  .topbar{height:62px}
  .channel-bar{top:62px}
  .nav-drawer{top:110px}
  .article-head h1{font-size:24px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important}
  .post-card:hover{transform:none}
  .post-card:hover .thumb img{transform:none}
  .btn-glow:hover{transform:none}
}

/* roulang page: category1 */
:root{
  --bg-900:#060E18;
  --bg-800:#0A1626;
  --surface:#0F2237;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(46,197,255,.45);
  --brand:#2EC5FF;
  --brand-hover:#58D6FF;
  --lime:#C6FF4A;
  --amber:#FFB43A;
  --text-100:#F2F7FF;
  --text-300:#A9BCD2;
  --danger:#FF5C7A;
  --r-card:18px;
  --r-glass:20px;
  --r-img:14px;
  --r-input:12px;
  --shadow:0 18px 48px rgba(4,12,24,.55);
  --ease:cubic-bezier(.2,.7,.3,1);
  --dur:240ms;
}

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

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

body{
  margin:0;
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text-100);
  background-color:var(--bg-900);
  background-image:radial-gradient(1200px 600px at 50% -240px,rgba(46,197,255,.10),transparent 70%);
  background-repeat:no-repeat;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

a{color:inherit;text-decoration:none;}
a:hover{color:var(--brand-hover);}
img{max-width:100%;display:block;border-radius:var(--r-img);}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}

:focus-visible{
  outline:2px solid var(--lime);
  outline-offset:3px;
  border-radius:6px;
}

.container-xl{
  width:100%;
  max-width:1200px !important;
  margin-left:auto;
  margin-right:auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:992px){
  .container-xl{padding-left:32px;padding-right:32px;}
}

/* ============ HEADER ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(7,15,28,.82);
  backdrop-filter:blur(16px) saturate(130%);
  -webkit-backdrop-filter:blur(16px) saturate(130%);
  border-bottom:1px solid var(--line);
}
@supports not ((backdrop-filter:blur(2px)) or (-webkit-backdrop-filter:blur(2px))){
  .site-header{background:#0A1626;}
}

.nav-main{
  display:flex;
  align-items:center;
  gap:20px;
  height:68px;
}

.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:700;
  letter-spacing:.5px;
  color:var(--text-100);
  white-space:nowrap;
  flex:0 0 auto;
}
.brand:hover{color:var(--text-100);}
.brand-mark{
  width:34px;
  height:34px;
  border-radius:10px;
  display:grid;
  place-items:center;
  border:1px solid rgba(46,197,255,.50);
  background:linear-gradient(150deg,rgba(46,197,255,.18),rgba(198,255,74,.08));
  box-shadow:0 0 18px rgba(46,197,255,.22);
  flex:0 0 auto;
}
.brand-mark svg{width:22px;height:22px;display:block;}
.brand-sub{
  font-size:12px;
  font-weight:400;
  color:var(--text-300);
  margin-left:6px;
  letter-spacing:0;
}

.nav-search{
  position:relative;
  flex:1 1 auto;
  max-width:380px;
  margin-left:auto;
}
.nav-search input{
  width:100%;
  height:40px;
  padding:0 44px 0 16px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(6,14,24,.72);
  color:var(--text-100);
  font-size:14px;
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.nav-search input::placeholder{color:rgba(169,188,210,.6);}
.nav-search input:focus{
  outline:none;
  border-color:var(--lime);
  box-shadow:0 0 0 3px rgba(198,255,74,.16);
}
.nav-search button{
  position:absolute;
  right:6px;
  top:50%;
  transform:translateY(-50%);
  width:32px;
  height:32px;
  display:grid;
  place-items:center;
  border-radius:50%;
  color:var(--text-300);
  transition:color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.nav-search button:hover{color:var(--brand);background:rgba(46,197,255,.12);}
.nav-search svg{width:17px;height:17px;}

.btn-glow{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 26px;
  border-radius:999px;
  border:1px solid transparent;
  background:linear-gradient(120deg,#2EC5FF 0%,#7DE8A8 68%,#C6FF4A 100%);
  color:#04121C;
  font-weight:600;
  font-size:15px;
  line-height:1.2;
  box-shadow:0 10px 28px rgba(46,197,255,.28);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),filter var(--dur) var(--ease);
}
.btn-glow:hover{
  color:#04121C;
  transform:translateY(-2px);
  box-shadow:0 14px 36px rgba(46,197,255,.45);
  filter:saturate(112%);
}
.btn-glow:active{transform:translateY(1px);box-shadow:0 6px 18px rgba(46,197,255,.32);}

.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 24px;
  border-radius:999px;
  border:1px solid rgba(46,197,255,.55);
  color:var(--brand);
  font-weight:600;
  font-size:15px;
  line-height:1.2;
  background:transparent;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.btn-ghost:hover{
  background:rgba(46,197,255,.12);
  color:var(--brand-hover);
  transform:translateY(-2px);
}
.btn-ghost:active{transform:translateY(1px);}

.nav-cta{flex:0 0 auto;padding:10px 20px;font-size:14px;}

.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  border-radius:12px;
  border:1px solid var(--line);
  place-items:center;
  color:var(--text-100);
  flex:0 0 auto;
  transition:border-color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.nav-toggle:hover{border-color:var(--line-strong);background:rgba(46,197,255,.10);}
.nav-toggle svg{width:20px;height:20px;}

/* channel bar */
.channel-bar{
  position:relative;
  border-top:1px solid var(--line);
  background:rgba(10,22,38,.72);
}
.channel-bar::after{
  content:"";
  position:absolute;
  top:0;
  right:0;
  width:64px;
  height:100%;
  background:linear-gradient(90deg,rgba(7,15,28,0),rgba(7,15,28,.95));
  pointer-events:none;
}
.channel-inner{
  display:flex;
  align-items:center;
  gap:8px;
  height:48px;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
  scroll-snap-type:x proximity;
  -webkit-overflow-scrolling:touch;
}
.channel-inner::-webkit-scrollbar{display:none;}
.chan{
  flex:0 0 auto;
  scroll-snap-align:start;
  padding:7px 16px;
  border-radius:999px;
  font-size:14px;
  color:var(--text-300);
  border:1px solid transparent;
  white-space:nowrap;
  transition:color var(--dur) var(--ease),background var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.chan:hover{color:var(--text-100);background:rgba(46,197,255,.08);}
.chan.is-active{
  color:var(--brand);
  background:rgba(46,197,255,.16);
  border-color:rgba(46,197,255,.45);
}

/* mobile drawer */
.mobile-drawer{
  position:fixed;
  inset:0;
  z-index:1045;
  display:none;
  flex-direction:column;
  gap:6px;
  padding:20px;
  background:rgba(6,14,24,.98);
  overflow-y:auto;
}
.mobile-drawer.open{display:flex;}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-bottom:16px;
  margin-bottom:8px;
  border-bottom:1px solid var(--line);
}
.drawer-close{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line);
  display:grid;place-items:center;color:var(--text-100);
}
.drawer-close svg{width:18px;height:18px;}
.drawer-link{
  display:block;
  padding:14px 4px;
  font-size:16px;
  color:var(--text-100);
  border-bottom:1px solid var(--line);
}
.drawer-link.is-active{color:var(--brand);}
.mobile-drawer .btn-glow{margin-top:20px;width:100%;}

/* ============ PAGE BANNER ============ */
.page-banner{
  position:relative;
  overflow:hidden;
  padding:56px 0 52px;
  border-bottom:1px solid var(--line);
  background-image:
    radial-gradient(900px 380px at 16% -40%,rgba(46,197,255,.26),transparent 66%),
    linear-gradient(rgba(6,14,24,.74),rgba(6,14,24,.90)),
    url("/assets/images/backpic/back-2.png");
  background-size:cover,cover,cover;
  background-position:center,center,center;
  background-repeat:no-repeat;
}
.page-banner::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:48px 48px;
  pointer-events:none;
}
.page-banner > .container-xl{position:relative;z-index:2;}

.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-300);
  margin-bottom:18px;
}
.crumb a{transition:color var(--dur) var(--ease);}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:rgba(169,188,210,.5);}
.crumb .cur{color:var(--text-100);}

.banner-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 14px;
  margin-bottom:16px;
  border-radius:999px;
  border:1px solid rgba(46,197,255,.45);
  background:rgba(46,197,255,.12);
  color:var(--brand);
  font-size:12px;
  letter-spacing:.04em;
}
.banner-title{
  font-size:clamp(30px,4.4vw,52px);
  line-height:1.2;
  font-weight:700;
  letter-spacing:.5px;
  margin:0 0 16px;
}
.banner-lead{
  font-size:16px;
  line-height:1.8;
  color:var(--text-300);
  max-width:660px;
  margin:0;
}
.banner-badges{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:24px;
}
.mini-badge{
  padding:5px 13px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(15,34,55,.6);
  color:var(--text-300);
  font-size:12px;
  letter-spacing:.04em;
}

/* ============ LAYOUT ============ */
.cat-layout{
  display:grid;
  grid-template-columns:200px minmax(0,1fr);
  gap:56px;
  align-items:start;
  padding:72px 0 96px;
}

.anchor-nav{position:sticky;top:136px;}
.anchor-nav h2{
  font-size:12px;
  letter-spacing:.08em;
  color:var(--text-300);
  font-weight:600;
  margin:0 0 14px;
}
.anchor-nav ul{display:block;}
.anchor-nav a{
  display:block;
  padding:9px 0 9px 14px;
  font-size:14px;
  color:var(--text-300);
  border-left:2px solid transparent;
  transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.anchor-nav a:hover{color:var(--text-100);background:rgba(255,255,255,.03);}
.anchor-nav a.is-current{
  color:var(--brand);
  border-left-color:var(--brand);
  background:linear-gradient(90deg,rgba(46,197,255,.14),transparent);
}

.cat-section{
  margin-bottom:72px;
  scroll-margin-top:136px;
}
.cat-section:last-child{margin-bottom:0;}

.sec-title{
  font-size:clamp(22px,2.6vw,30px);
  line-height:1.32;
  font-weight:700;
  margin:0 0 18px;
  padding-left:16px;
  border-left:4px solid var(--brand);
}
.sec-sub{
  font-size:15px;
  color:var(--text-300);
  margin:0 0 26px;
  padding-left:20px;
}

.lead-flow p{color:var(--text-300);}
.lead-flow strong{color:var(--text-100);font-weight:600;}

/* steps */
.step-list{border-top:1px solid var(--line);}
.step-item{
  display:grid;
  grid-template-columns:72px minmax(0,1fr);
  gap:20px;
  padding:24px 12px 24px 0;
  border-bottom:1px solid var(--line);
  transition:background var(--dur) var(--ease);
}
.step-item:hover{background:rgba(46,197,255,.05);}
.step-num{
  font-size:28px;
  font-weight:700;
  line-height:1.2;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
  font-family:ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
  letter-spacing:.02em;
}
.step-body h3{
  font-size:20px;
  line-height:1.4;
  font-weight:600;
  margin:0 0 8px;
}
.step-body p{color:var(--text-300);font-size:15px;margin:0;}

/* table */
.table-scroll{
  overflow-x:auto;
  border-radius:var(--r-img);
  border:1px solid var(--line);
  -webkit-overflow-scrolling:touch;
}
.req-table{
  width:100%;
  min-width:640px;
  border-collapse:separate;
  border-spacing:0;
  font-size:14px;
}
.req-table thead th{
  background:rgba(46,197,255,.10);
  color:var(--text-100);
  font-weight:600;
  font-size:13px;
  letter-spacing:.02em;
  text-align:left;
  padding:14px 16px;
  white-space:nowrap;
  border-bottom:1px solid var(--line);
}
.req-table tbody td{
  padding:14px 16px;
  color:var(--text-300);
  border-bottom:1px solid rgba(255,255,255,.06);
  vertical-align:top;
}
.req-table tbody tr:last-child td{border-bottom:0;}
.req-table tbody tr:nth-child(even){background:rgba(255,255,255,.028);}
.req-table tbody tr:hover{background:rgba(46,197,255,.06);}
.req-table strong{color:var(--text-100);font-weight:600;}

.table-note{
  margin-top:14px;
  font-size:13px;
  color:var(--text-300);
}

/* media row */
.media-row{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:40px;
  align-items:center;
}
.media-row + .media-row{margin-top:56px;}
.media-text h3{
  font-size:21px;
  line-height:1.4;
  font-weight:600;
  margin:0 0 12px;
}
.media-text p{color:var(--text-300);font-size:15px;}
.media-figure{position:relative;}
.media-figure img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border:1px solid var(--line);
  border-radius:var(--r-img);
  box-shadow:var(--shadow);
}
.media-figure::after{
  content:"";
  position:absolute;
  right:-8px;
  bottom:-8px;
  width:120px;
  height:120px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(46,197,255,.35),transparent 70%);
  filter:blur(14px);
  pointer-events:none;
}
.media-row.flip .media-text{order:2;}
.media-row.flip .media-figure{order:1;}

.check-list{margin-top:18px;}
.check-list li{
  position:relative;
  padding-left:26px;
  margin-bottom:10px;
  font-size:15px;
  color:var(--text-300);
  line-height:1.75;
}
.check-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:9px;
  width:12px;
  height:7px;
  border-left:2px solid var(--lime);
  border-bottom:2px solid var(--lime);
  transform:rotate(-45deg);
}

/* issue list */
.issue-list{display:grid;gap:16px;}
.issue-item{
  display:grid;
  grid-template-columns:8px minmax(0,1fr);
  gap:18px;
  padding:20px 22px;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:rgba(15,34,55,.62);
  transition:border-color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.issue-item:hover{border-color:var(--line-strong);background:rgba(15,34,55,.86);}
.issue-mark{
  align-self:stretch;
  border-radius:999px;
  background:linear-gradient(180deg,var(--brand),rgba(198,255,74,.7));
}
.issue-item h3{
  font-size:17px;
  font-weight:600;
  line-height:1.5;
  margin:0 0 6px;
}
.issue-item p{color:var(--text-300);font-size:14.5px;margin:0;}

/* link pills */
.pill-group{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
}
.link-pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:10px 20px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(15,34,55,.6);
  color:var(--text-300);
  font-size:14px;
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease),background var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.link-pill:hover{
  color:var(--brand);
  border-color:var(--line-strong);
  background:rgba(46,197,255,.10);
  transform:translateY(-2px);
}
.link-pill .arrow{color:var(--brand);}

/* CTA strip */
.cta-strip{
  position:relative;
  overflow:hidden;
  border:1px solid rgba(46,197,255,.28);
  border-radius:var(--r-glass);
  padding:34px 36px;
  background:
    radial-gradient(600px 200px at 88% 10%,rgba(198,255,74,.14),transparent 70%),
    linear-gradient(120deg,rgba(46,197,255,.16),rgba(15,34,55,.92) 62%);
  box-shadow:var(--shadow);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
}
.cta-strip h2{
  font-size:clamp(19px,2.2vw,24px);
  line-height:1.4;
  font-weight:700;
  margin:0 0 8px;
}
.cta-strip p{
  margin:0;
  font-size:14.5px;
  color:var(--text-300);
  max-width:560px;
}

/* FAQ */
.faq-item{
  border:1px solid var(--line);
  border-radius:14px;
  background:rgba(15,34,55,.62);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.faq-item:hover{border-color:rgba(46,197,255,.30);}
.faq-item[open]{border-color:rgba(46,197,255,.55);background:rgba(15,34,55,.9);}
.faq-item summary{
  position:relative;
  list-style:none;
  cursor:pointer;
  padding:17px 52px 17px 46px;
  font-size:16px;
  font-weight:600;
  line-height:1.6;
  color:var(--text-100);
  transition:color var(--dur) var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";
  position:absolute;
  left:22px;
  top:22px;
  width:2px;
  height:16px;
  border-radius:2px;
  background:var(--brand);
}
.faq-item summary::after{
  content:"+";
  position:absolute;
  right:20px;
  top:50%;
  transform:translateY(-50%);
  font-size:22px;
  line-height:1;
  font-weight:400;
  color:var(--brand);
  transition:transform var(--dur) var(--ease),color var(--dur) var(--ease);
}
.faq-item[open] summary::after{
  content:"−";
  color:var(--lime);
  transform:translateY(-50%) rotate(180deg);
}
.faq-body{
  padding:0 46px 20px 46px;
  color:var(--text-300);
  font-size:15px;
  line-height:1.8;
}
.faq-body p{margin:0;}

/* ============ FOOTER ============ */
.site-footer{
  border-top:1px solid var(--line);
  background:var(--bg-800);
  padding-top:64px;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.7fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:48px;
}
.f-brand p{
  margin-top:16px;
  font-size:14px;
  color:var(--text-300);
  max-width:320px;
  line-height:1.85;
}
.f-col h4{
  font-size:14px;
  font-weight:600;
  color:var(--text-100);
  margin:0 0 16px;
  letter-spacing:.02em;
}
.f-col ul li{
  font-size:14px;
  color:var(--text-300);
  margin-bottom:10px;
  line-height:1.7;
}
.f-col a{transition:color var(--dur) var(--ease);}
.f-col a:hover{color:var(--brand);}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:20px 0 28px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
  flex-wrap:wrap;
  font-size:12px;
  color:var(--text-300);
  letter-spacing:.01em;
}

/* ============ RESPONSIVE ============ */
@media (max-width:1199px){
  .cat-layout{gap:40px;}
}

@media (max-width:991px){
  .nav-search{display:none;}
  .nav-cta{display:none;}
  .nav-toggle{display:grid;}
  .nav-main{justify-content:space-between;gap:12px;}

  .cat-layout{
    grid-template-columns:minmax(0,1fr);
    gap:28px;
    padding:48px 0 64px;
  }
  .anchor-nav{
    position:static;
    top:auto;
    margin-bottom:4px;
  }
  .anchor-nav h2{display:none;}
  .anchor-nav ul{
    display:flex;
    gap:10px;
    overflow-x:auto;
    scrollbar-width:none;
    -ms-overflow-style:none;
    padding-bottom:6px;
    scroll-snap-type:x proximity;
  }
  .anchor-nav ul::-webkit-scrollbar{display:none;}
  .anchor-nav a{
    white-space:nowrap;
    border:1px solid var(--line);
    border-left:1px solid var(--line);
    border-radius:999px;
    padding:7px 16px;
    font-size:13px;
    scroll-snap-align:start;
  }
  .anchor-nav a.is-current{
    background:rgba(46,197,255,.16);
    border-color:rgba(46,197,255,.45);
  }

  .page-banner{padding:44px 0 40px;}
  .cat-section{margin-bottom:56px;scroll-margin-top:100px;}

  .media-row{grid-template-columns:minmax(0,1fr);gap:24px;}
  .media-row.flip .media-text{order:1;}
  .media-row.flip .media-figure{order:2;}

  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-strip{padding:28px 24px;}
}

@media (max-width:767px){
  .step-item{grid-template-columns:56px minmax(0,1fr);gap:14px;padding:20px 0;}
  .step-num{font-size:24px;}
  .step-body h3{font-size:18px;}
  .sec-title{padding-left:12px;border-left-width:3px;}
  .sec-sub{padding-left:16px;}
  .faq-item summary{padding:15px 48px 15px 40px;font-size:15px;}
  .faq-body{padding:0 40px 18px 40px;}
  .issue-item{padding:16px 16px;gap:14px;}
}

@media (max-width:575px){
  body{font-size:15.5px;line-height:1.8;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .brand{font-size:16px;}
  .brand-sub{display:none;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .banner-badges{gap:8px;}
  .mini-badge{font-size:11.5px;padding:4px 11px;}
  .cta-strip{padding:24px 20px;}
  .cta-strip .btn-glow{width:100%;}
  .link-pill{font-size:13px;padding:9px 16px;}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation:none !important;
    transition:none !important;
  }
  .btn-glow:hover,.btn-ghost:hover,.link-pill:hover{transform:none;}
}

/* roulang page: category2 */
:root{
  --bg-900:#060E18;
  --bg-800:#0A1626;
  --surface:#0F2237;
  --line:rgba(255,255,255,.10);
  --brand:#2EC5FF;
  --brand-hover:#58D6FF;
  --lime:#C6FF4A;
  --amber:#FFB43A;
  --danger:#FF5C7A;
  --text-100:#F2F7FF;
  --text-300:#A9BCD2;
  --r-card:18px;
  --r-panel:20px;
  --r-img:14px;
  --r-input:12px;
  --shadow-card:0 18px 48px rgba(4,12,24,.55);
  --topbar-h:68px;
  --chan-h:48px;
  --sp-4:4px;--sp-8:8px;--sp-12:12px;--sp-16:16px;--sp-24:24px;--sp-32:32px;--sp-48:48px;--sp-64:64px;--sp-96:96px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-900);
  color:var(--text-100);
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--brand-hover);}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:6px;}
.container-xl{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:992px){.container-xl{padding:0 32px;}}

/* ---------- 品牌 ---------- */
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text-100);text-decoration:none;}
.brand:hover{color:var(--text-100);}
.brand-mark{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(160deg,rgba(46,197,255,.20),rgba(198,255,74,.10));
  border:1px solid rgba(46,197,255,.45);box-shadow:0 0 18px rgba(46,197,255,.22);flex:0 0 auto;}
.brand-mark svg{width:22px;height:22px;}
.brand-text{font-weight:700;letter-spacing:.5px;font-size:17px;line-height:1.15;display:flex;flex-direction:column;}
.brand-sub{font-size:12px;font-weight:400;color:var(--text-300);letter-spacing:.08em;}

/* ---------- 顶部导航 ---------- */
.site-header{position:relative;z-index:1030;}
.topbar{position:sticky;top:0;z-index:1030;height:var(--topbar-h);
  background:rgba(7,15,28,.82);backdrop-filter:blur(16px) saturate(130%);
  -webkit-backdrop-filter:blur(16px) saturate(130%);border-bottom:1px solid var(--line);}
@supports not (backdrop-filter:blur(4px)){.topbar{background:#0A1626;}}
.topbar-inner{height:100%;display:flex;align-items:center;gap:18px;}
.nav-search{position:relative;flex:1 1 auto;max-width:420px;display:none;}
@media (min-width:768px){.nav-search{display:block;}}
.nav-search input{width:100%;height:40px;padding:0 44px 0 16px;border-radius:999px;
  background:#08182A;border:1px solid var(--line);color:var(--text-100);font-size:14px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);}
.nav-search input::placeholder{color:rgba(169,188,210,.6);}
.nav-search input:focus{outline:none;border-color:var(--lime);box-shadow:0 0 0 3px rgba(198,255,74,.16);}
.nav-search button{position:absolute;right:6px;top:50%;transform:translateY(-50%);width:32px;height:32px;
  border:0;background:transparent;color:var(--text-300);display:grid;place-items:center;border-radius:50%;cursor:pointer;transition:color .2s var(--ease);}
.nav-search button:hover{color:var(--brand);}
.topbar-actions{margin-left:auto;display:flex;align-items:center;gap:10px;}

.btn-glow{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 24px;border-radius:999px;border:1px solid rgba(198,255,74,.55);
  background:linear-gradient(100deg,var(--brand) 0%,#7EDFFF 52%,var(--lime) 100%);
  color:#04121C;font-weight:600;font-size:14.5px;letter-spacing:.2px;
  box-shadow:0 10px 28px rgba(46,197,255,.28);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease);}
.btn-glow:hover{color:#04121C;transform:translateY(-2px);box-shadow:0 14px 34px rgba(46,197,255,.45);}
.btn-glow:active{transform:translateY(1px);}
.btn-ghost{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 22px;border-radius:999px;border:1px solid rgba(46,197,255,.55);
  background:transparent;color:var(--brand);font-weight:600;font-size:14.5px;
  transition:background .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);}
.btn-ghost:hover{background:rgba(46,197,255,.12);color:var(--brand-hover);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}
.menu-toggle{display:inline-grid;place-items:center;width:42px;height:42px;border-radius:12px;
  background:rgba(46,197,255,.10);border:1px solid var(--line);color:var(--text-100);cursor:pointer;}
@media (min-width:992px){.menu-toggle{display:none;}}
.menu-toggle span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;position:relative;}
.menu-toggle span::before,.menu-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px;}
.menu-toggle span::before{top:-6px;}
.menu-toggle span::after{top:6px;}

.channel-bar{position:sticky;top:var(--topbar-h);z-index:1020;height:var(--chan-h);
  background:rgba(7,15,28,.82);backdrop-filter:blur(16px) saturate(130%);
  -webkit-backdrop-filter:blur(16px) saturate(130%);border-bottom:1px solid var(--line);}
@supports not (backdrop-filter:blur(4px)){.channel-bar{background:#0A1626;}}
.channel-inner{height:100%;display:flex;align-items:center;gap:8px;overflow-x:auto;scroll-snap-type:x proximity;
  -ms-overflow-style:none;scrollbar-width:none;
  -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 16px,#000 calc(100% - 16px),transparent 100%);
  mask-image:linear-gradient(90deg,transparent 0,#000 16px,#000 calc(100% - 16px),transparent 100%);}
.channel-inner::-webkit-scrollbar{display:none;}
.chan{flex:0 0 auto;scroll-snap-align:start;padding:6px 16px;border-radius:999px;font-size:14px;
  color:var(--text-300);border:1px solid transparent;white-space:nowrap;
  transition:color .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);}
.chan:hover{color:var(--text-100);background:rgba(255,255,255,.05);}
.chan.is-active{color:var(--brand);background:rgba(46,197,255,.16);border-color:rgba(46,197,255,.45);}

/* ---------- 移动抽屉 ---------- */
.mobile-drawer{position:fixed;inset:0;z-index:1200;background:rgba(6,14,24,.98);
  padding:24px 20px 40px;display:none;flex-direction:column;gap:20px;overflow-y:auto;}
.mobile-drawer.open{display:flex;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-close{width:42px;height:42px;border-radius:12px;background:rgba(255,255,255,.06);
  border:1px solid var(--line);color:var(--text-100);font-size:20px;line-height:1;cursor:pointer;}
.drawer-nav{display:flex;flex-direction:column;gap:4px;}
.drawer-nav a{padding:14px 16px;border-radius:14px;color:var(--text-100);font-size:16px;
  border:1px solid var(--line);background:rgba(15,34,55,.7);}
.drawer-nav a.is-active{color:var(--brand);border-color:rgba(46,197,255,.45);background:rgba(46,197,255,.12);}
.drawer-foot{margin-top:auto;display:grid;gap:12px;}
.drawer-foot .btn-glow{width:100%;}

/* ---------- 页面 Banner ---------- */
.page-banner{position:relative;overflow:hidden;border-bottom:1px solid var(--line);
  background-image:linear-gradient(rgba(6,14,24,.72),rgba(6,14,24,.86)),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;}
.page-banner::before{content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:48px 48px;mask-image:radial-gradient(120% 100% at 50% 0,#000 20%,transparent 78%);
  -webkit-mask-image:radial-gradient(120% 100% at 50% 0,#000 20%,transparent 78%);}
.page-banner::after{content:"";position:absolute;left:50%;top:-220px;width:760px;height:460px;transform:translateX(-50%);
  background:radial-gradient(closest-side,rgba(46,197,255,.30),transparent 72%);pointer-events:none;}
.banner-inner{position:relative;z-index:2;padding:56px 0 48px;}
@media (min-width:992px){.banner-inner{padding:76px 0 64px;}}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-300);margin-bottom:18px;}
.crumbs a{color:var(--text-300);}
.crumbs a:hover{color:var(--brand);}
.crumbs .sep{color:rgba(169,188,210,.5);}
.crumbs .cur{color:var(--text-100);}
.banner-tag{display:inline-flex;align-items:center;gap:8px;padding:5px 14px;border-radius:999px;
  font-size:12px;letter-spacing:.04em;color:var(--brand);border:1px solid rgba(46,197,255,.45);
  background:rgba(46,197,255,.10);margin-bottom:18px;}
.page-banner h1{font-size:clamp(30px,4.4vw,52px);line-height:1.2;font-weight:700;letter-spacing:-.4px;max-width:16em;}
.banner-lead{margin-top:16px;font-size:clamp(15px,1.5vw,17px);color:var(--text-300);max-width:44em;}

/* ---------- 内容布局 ---------- */
.layout{display:grid;grid-template-columns:1fr;gap:32px;padding:48px 0 72px;}
@media (min-width:992px){
  .layout{grid-template-columns:200px minmax(0,1fr);gap:48px;padding:64px 0 96px;}
}
.anchor-nav{align-self:start;}
@media (min-width:992px){.anchor-nav{position:sticky;top:calc(var(--topbar-h) + var(--chan-h) + 24px);}}
.anchor-nav h2{font-size:12px;letter-spacing:.12em;color:var(--text-300);font-weight:600;margin-bottom:12px;text-transform:none;}
.anchor-list{display:flex;gap:8px;overflow-x:auto;scroll-snap-type:x proximity;padding-bottom:6px;
  -ms-overflow-style:none;scrollbar-width:none;}
.anchor-list::-webkit-scrollbar{display:none;}
.anchor-list a{flex:0 0 auto;scroll-snap-align:start;display:block;padding:7px 14px;border-radius:999px;
  font-size:13.5px;color:var(--text-300);border:1px solid var(--line);background:rgba(15,34,55,.6);
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);}
.anchor-list a:hover{color:var(--brand);border-color:rgba(46,197,255,.45);}
@media (min-width:992px){
  .anchor-list{flex-direction:column;gap:2px;overflow:visible;padding-bottom:0;}
  .anchor-list a{border:1px solid transparent;background:transparent;border-radius:0 10px 10px 0;
    border-left:2px solid transparent;padding:9px 14px;}
  .anchor-list a:hover{background:rgba(46,197,255,.08);border-left-color:rgba(46,197,255,.55);}
}
.content-main{min-width:0;}
.sec{margin-bottom:64px;scroll-margin-top:calc(var(--topbar-h) + var(--chan-h) + 16px);}
.sec:last-child{margin-bottom:0;}
.sec-head{margin-bottom:26px;}
.sec-head h2{font-size:clamp(24px,2.8vw,34px);line-height:1.28;font-weight:700;letter-spacing:-.2px;}
.sec-head p{margin-top:10px;color:var(--text-300);font-size:15px;max-width:52em;}
.lead-copy p{color:var(--text-300);font-size:15.5px;line-height:1.9;margin-bottom:14px;}
.lead-copy p strong{color:var(--text-100);font-weight:600;}

/* ---------- 自查清单 ---------- */
.check-list{border-top:1px solid var(--line);}
.check-item{display:grid;grid-template-columns:auto 1fr;gap:18px;align-items:start;
  padding:20px 12px;border-bottom:1px solid var(--line);transition:background .22s var(--ease);}
.check-item:hover{background:rgba(46,197,255,.06);}
.check-num{font-size:22px;font-weight:700;color:var(--brand);line-height:1.4;font-variant-numeric:tabular-nums;min-width:34px;}
.check-item h3{font-size:17px;font-weight:600;margin-bottom:6px;}
.check-item p{color:var(--text-300);font-size:14.5px;line-height:1.8;}
.check-item .where{display:inline-block;margin-top:8px;font-size:12px;letter-spacing:.04em;
  color:var(--lime);border:1px solid rgba(198,255,74,.35);background:rgba(198,255,74,.08);
  padding:2px 10px;border-radius:999px;}

/* ---------- 图文块 ---------- */
.split{display:grid;grid-template-columns:1fr;gap:24px;align-items:center;}
@media (min-width:768px){.split{grid-template-columns:1.05fr .95fr;gap:32px;}}
.split-figure{position:relative;}
.split-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;border:1px solid var(--line);
  border-radius:var(--r-img);box-shadow:var(--shadow-card);}
.split-figure::after{content:"";position:absolute;right:-6px;bottom:-6px;width:90px;height:90px;
  background:radial-gradient(closest-side,rgba(46,197,255,.45),transparent 70%);filter:blur(6px);pointer-events:none;}
.step-list{display:grid;gap:14px;margin-top:18px;}
.step-list li{display:grid;grid-template-columns:auto 1fr;gap:12px;align-items:start;
  font-size:15px;color:var(--text-300);line-height:1.8;}
.step-list li::before{content:"";width:16px;height:16px;margin-top:7px;border-radius:50%;
  border:1px solid rgba(46,197,255,.6);background:radial-gradient(closest-side,var(--brand) 42%,transparent 46%);}
.step-list li b{color:var(--text-100);font-weight:600;}

/* ---------- 对比双列 ---------- */
.compare{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:768px){.compare{grid-template-columns:1fr 1fr;gap:24px;}}
.compare-col{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-panel);
  padding:24px 22px;box-shadow:var(--shadow-card);}
.compare-col.good{border-top:2px solid var(--lime);}
.compare-col.bad{border-top:2px solid var(--amber);}
.compare-col h3{font-size:17px;font-weight:600;display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.compare-col h3 .dot{width:10px;height:10px;border-radius:50%;flex:0 0 auto;}
.compare-col.good h3 .dot{background:var(--lime);box-shadow:0 0 12px rgba(198,255,74,.6);}
.compare-col.bad h3 .dot{background:var(--amber);box-shadow:0 0 12px rgba(255,180,58,.55);}
.compare-col ul{display:grid;gap:12px;}
.compare-col li{position:relative;padding-left:24px;font-size:14.5px;line-height:1.8;color:var(--text-300);}
.compare-col li::before{position:absolute;left:0;top:0;font-size:14px;font-weight:700;}
.compare-col.good li::before{content:"✓";color:var(--lime);}
.compare-col.bad li::before{content:"✕";color:var(--amber);}
.compare-col li b{color:var(--text-100);font-weight:600;}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;padding-left:28px;}
.timeline::before{content:"";position:absolute;left:7px;top:8px;bottom:8px;width:1px;
  background:linear-gradient(180deg,rgba(46,197,255,.7),rgba(198,255,74,.35),transparent);}
.timeline li{position:relative;padding-bottom:26px;}
.timeline li:last-child{padding-bottom:0;}
.timeline li::before{content:"";position:absolute;left:-28px;top:8px;width:15px;height:15px;border-radius:50%;
  background:var(--bg-900);border:2px solid var(--brand);box-shadow:0 0 12px rgba(46,197,255,.5);}
.timeline h3{font-size:16.5px;font-weight:600;margin-bottom:6px;}
.timeline p{font-size:14.5px;color:var(--text-300);line-height:1.8;}

/* ---------- 胶囊链接组 ---------- */
.pill-links{display:flex;flex-wrap:wrap;gap:10px;}
.pill-links a{display:inline-flex;align-items:center;gap:8px;padding:9px 18px;border-radius:999px;
  font-size:14px;color:var(--text-100);border:1px solid var(--line);background:rgba(15,34,55,.72);
  transition:border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);}
.pill-links a:hover{color:var(--brand);border-color:rgba(46,197,255,.45);transform:translateY(-2px);}
.pill-links a::after{content:"→";color:var(--brand);font-size:13px;}

/* ---------- CTA 条 ---------- */
.cta-strip{position:relative;overflow:hidden;border-radius:var(--r-panel);
  border:1px solid rgba(46,197,255,.28);padding:32px 26px;
  background:linear-gradient(115deg,rgba(46,197,255,.16),rgba(10,22,38,.92) 58%,rgba(198,255,74,.10));
  box-shadow:var(--shadow-card);}
@media (min-width:768px){.cta-strip{display:flex;align-items:center;justify-content:space-between;gap:32px;padding:38px 36px;}}
.cta-strip h2{font-size:clamp(21px,2.4vw,27px);line-height:1.3;font-weight:700;}
.cta-strip p{margin-top:10px;color:var(--text-300);font-size:14.5px;max-width:40em;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px;flex:0 0 auto;}
@media (min-width:768px){.cta-actions{margin-top:0;}}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:14px;overflow:hidden;
  transition:border-color .2s var(--ease);}
.faq-item[open]{border-color:rgba(46,197,255,.55);}
.faq-item summary{list-style:none;cursor:pointer;padding:18px 52px 18px 24px;font-size:16px;font-weight:600;
  color:var(--text-100);position:relative;line-height:1.6;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{content:"";position:absolute;left:8px;top:22px;bottom:22px;width:2px;
  background:rgba(46,197,255,.55);border-radius:2px;}
.faq-item summary::after{content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);
  font-size:20px;font-weight:400;color:var(--brand);transition:transform .24s var(--ease);}
.faq-item[open] summary::after{content:"−";transform:translateY(-50%) rotate(180deg);}
.faq-body{padding:0 24px 20px 24px;color:var(--text-300);font-size:14.5px;line-height:1.85;}

/* ---------- 表单 ---------- */
.feedback-form{margin-top:28px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-panel);padding:26px 24px;box-shadow:var(--shadow-card);}
.form-grid{display:grid;grid-template-columns:1fr;gap:16px;}
@media (min-width:768px){.form-grid{grid-template-columns:1fr 1fr;}}
.field label{display:block;font-size:13px;color:var(--text-300);margin-bottom:6px;}
.field input,.field textarea{width:100%;padding:12px 14px;border-radius:var(--r-input);
  background:#08182A;border:1px solid var(--line);color:var(--text-100);font-size:14.5px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);}
.field textarea{min-height:110px;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:rgba(169,188,210,.6);}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--lime);box-shadow:0 0 0 3px rgba(198,255,74,.16);}
.field.full{grid-column:1 / -1;}
.form-foot{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:20px;}
.form-note{font-size:13px;color:var(--text-300);}
.form-success{display:none;margin-top:16px;padding:12px 16px;border-radius:12px;font-size:14px;
  color:var(--lime);border:1px solid rgba(198,255,74,.4);background:rgba(198,255,74,.08);}
.form-success.show{display:block;}

/* ---------- 页脚 ---------- */
.site-footer{border-top:1px solid var(--line);background:var(--bg-800);padding:56px 0 0;margin-top:24px;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:36px;padding-bottom:40px;}
@media (min-width:576px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media (min-width:992px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;}}
.f-brand p{margin-top:16px;color:var(--text-300);font-size:14px;line-height:1.8;max-width:26em;}
.f-col h4{font-size:14px;font-weight:600;color:var(--text-100);margin-bottom:14px;letter-spacing:.04em;}
.f-col ul{display:grid;gap:9px;}
.f-col li{font-size:14px;color:var(--text-300);line-height:1.7;}
.f-col a{color:var(--text-300);}
.f-col a:hover{color:var(--brand);}
.footer-bottom{border-top:1px solid var(--line);padding:18px 0 24px;display:flex;flex-wrap:wrap;
  gap:8px 24px;justify-content:space-between;font-size:12px;color:rgba(169,188,210,.72);}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important;}
}

/* roulang page: category3 */
:root{
  --bg-900:#060E18;
  --bg-800:#0A1626;
  --surface:#0F2237;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --brand:#2EC5FF;
  --brand-hover:#58D6FF;
  --lime:#C6FF4A;
  --amber:#FFB43A;
  --text-100:#F2F7FF;
  --text-300:#A9BCD2;
  --r-card:18px;
  --r-glass:20px;
  --r-img:14px;
  --r-input:12px;
  --shadow:0 18px 48px rgba(4,12,24,.55);
  --sp-1:4px;--sp-2:8px;--sp-3:12px;--sp-4:16px;--sp-5:24px;--sp-6:32px;--sp-7:48px;--sp-8:64px;--sp-9:96px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-900);
  color:var(--text-100);
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--brand-hover)}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--lime);
  outline-offset:3px;
  border-radius:6px;
}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.28;color:var(--text-100)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
.container-xl{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:992px){.container-xl{padding:0 32px}}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:1000}
.nav-top{
  background:rgba(7,15,28,.82);
  backdrop-filter:blur(16px) saturate(130%);
  -webkit-backdrop-filter:blur(16px) saturate(130%);
  border-bottom:1px solid var(--line);
}
.nav-top-inner{display:flex;align-items:center;gap:var(--sp-4);height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text-100);font-weight:700;letter-spacing:.5px;font-size:17px;flex:0 0 auto}
.brand:hover{color:var(--text-100)}
.brand-mark{width:30px;height:30px;border-radius:9px;display:inline-flex;align-items:center;justify-content:center;background:rgba(46,197,255,.12);border:1px solid rgba(46,197,255,.45);box-shadow:0 0 18px rgba(46,197,255,.25)}
.brand-mark svg{width:20px;height:20px}
.brand-sub{display:block;font-size:12px;font-weight:400;color:var(--text-300);letter-spacing:.04em;line-height:1.2}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.nav-search{position:relative;flex:1 1 auto;max-width:340px;margin-left:auto}
.nav-search input{
  width:100%;height:40px;padding:0 42px 0 16px;
  background:rgba(6,14,24,.75);
  border:1px solid var(--line);
  border-radius:999px;
  color:var(--text-100);
  font-size:14px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-search input::placeholder{color:rgba(169,188,210,.6)}
.nav-search input:focus{outline:none;border-color:var(--lime);box-shadow:0 0 0 3px rgba(198,255,74,.15)}
.nav-search button{
  position:absolute;right:6px;top:6px;width:28px;height:28px;
  display:flex;align-items:center;justify-content:center;
  background:transparent;border:0;color:var(--text-300);cursor:pointer;border-radius:50%;
}
.nav-search button:hover{color:var(--brand)}
.btn-glow{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 24px;border-radius:999px;border:1px solid rgba(255,255,255,.16);
  background:linear-gradient(100deg,var(--brand) 0%,#7FE3FF 55%,var(--lime) 100%);
  color:#04121C;font-weight:600;font-size:14px;letter-spacing:.2px;
  box-shadow:0 10px 28px rgba(46,197,255,.28);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-glow:hover{color:#04121C;transform:translateY(-2px);box-shadow:0 14px 34px rgba(46,197,255,.45)}
.btn-glow:active{transform:translateY(1px)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 22px;border-radius:999px;
  border:1px solid rgba(46,197,255,.55);background:transparent;
  color:var(--brand);font-weight:600;font-size:14px;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.btn-ghost:hover{background:rgba(46,197,255,.12);color:var(--brand-hover);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}
.nav-cta{flex:0 0 auto}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:rgba(46,197,255,.08);
  color:var(--text-100);align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle:hover{border-color:rgba(46,197,255,.5)}

/* 频道 Tabs */
.channel-bar{
  background:rgba(10,22,38,.92);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.channel-inner{
  display:flex;align-items:center;gap:10px;height:48px;
  overflow-x:auto;scroll-snap-type:x proximity;
  -ms-overflow-style:none;scrollbar-width:none;
}
.channel-inner::-webkit-scrollbar{display:none}
.chan{
  flex:0 0 auto;scroll-snap-align:start;
  padding:6px 16px;border-radius:999px;font-size:14px;
  color:var(--text-300);border:1px solid transparent;
  transition:all .2s var(--ease);white-space:nowrap;
}
.chan:hover{color:var(--text-100);background:rgba(46,197,255,.08)}
.chan.is-active{
  color:var(--brand);background:rgba(46,197,255,.16);
  border-color:rgba(46,197,255,.45);
}

/* 移动端抽屉 */
.drawer{
  position:fixed;inset:0;z-index:2000;background:rgba(6,14,24,.98);
  display:flex;flex-direction:column;padding:20px;
  transform:translateY(-8px);opacity:0;pointer-events:none;
  transition:opacity .24s var(--ease),transform .24s var(--ease);
  backdrop-filter:blur(10px);
}
.drawer.is-open{opacity:1;transform:translateY(0);pointer-events:auto}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}
.drawer-close{width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:transparent;color:var(--text-100);font-size:20px;cursor:pointer}
.drawer-list{display:flex;flex-direction:column;gap:8px}
.drawer-list a{
  padding:14px 16px;border-radius:14px;border:1px solid var(--line);
  color:var(--text-100);font-size:16px;background:rgba(15,34,55,.6);
}
.drawer-list a.is-active{border-color:rgba(46,197,255,.5);color:var(--brand)}
.drawer-cta{margin-top:24px}

/* ---------- Banner ---------- */
.page-banner{
  position:relative;overflow:hidden;
  background-image:
    radial-gradient(900px 420px at 18% -20%,rgba(46,197,255,.30),transparent 70%),
    linear-gradient(rgba(6,14,24,.72),rgba(6,14,24,.86)),
    url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
  padding:72px 0 64px;
}
.page-banner::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:48px 48px;
  mask-image:radial-gradient(circle at 30% 20%,#000 20%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 30% 20%,#000 20%,transparent 78%);
}
.page-banner .inner{position:relative;z-index:2;max-width:820px}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-300);margin-bottom:18px}
.crumb a{color:var(--text-300)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{opacity:.5}
.crumb .current{color:var(--text-100)}
.page-banner h1{
  font-size:clamp(30px,4.4vw,52px);line-height:1.2;letter-spacing:-.5px;
  margin-bottom:16px;
}
.page-banner .lede{font-size:17px;color:var(--text-300);max-width:640px}
.banner-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}
.pill-badge{
  font-size:12px;letter-spacing:.04em;color:var(--text-100);
  border:1px solid var(--line-strong);border-radius:999px;
  padding:5px 12px;background:rgba(15,34,55,.6);
}
.pill-badge.brand{color:var(--brand);border-color:rgba(46,197,255,.45);background:rgba(46,197,255,.10)}

/* ---------- 布局 ---------- */
.layout{display:block;padding:64px 0 80px}
@media(min-width:992px){
  .layout{display:grid;grid-template-columns:200px minmax(0,1fr);gap:48px;padding:80px 0 96px}
}
.anchor-nav{display:none}
@media(min-width:992px){
  .anchor-nav{display:block;position:sticky;top:132px;align-self:start}
}
.anchor-nav h2{font-size:13px;letter-spacing:.08em;color:var(--text-300);font-weight:600;margin-bottom:14px}
.anchor-nav ul{display:flex;flex-direction:column;gap:2px}
.anchor-nav a{
  display:block;padding:8px 0 8px 14px;font-size:14px;color:var(--text-300);
  border-left:1px solid var(--line);
  transition:all .2s var(--ease);
}
.anchor-nav a:hover{color:var(--text-100);border-left-color:rgba(46,197,255,.6)}
.anchor-nav a.is-current{color:var(--brand);border-left:2px solid var(--brand);padding-left:13px}
.anchor-pills{display:flex;gap:8px;overflow-x:auto;scroll-snap-type:x proximity;padding-bottom:6px;margin-bottom:32px;-ms-overflow-style:none;scrollbar-width:none}
.anchor-pills::-webkit-scrollbar{display:none}
.anchor-pills a{
  flex:0 0 auto;scroll-snap-align:start;font-size:13px;color:var(--text-300);
  border:1px solid var(--line);border-radius:999px;padding:6px 14px;background:rgba(15,34,55,.6);
}
.anchor-pills a:hover{color:var(--brand);border-color:rgba(46,197,255,.45)}
@media(min-width:992px){.anchor-pills{display:none}}

section[id]{scroll-margin-top:96px}

/* 正文块 */
.prose p{color:var(--text-300);margin-bottom:16px}
.prose p strong{color:var(--text-100);font-weight:600}
.block{margin-bottom:80px}
.block-head{margin-bottom:28px}
.block-head .eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.08em;color:var(--lime);
  border:1px solid rgba(198,255,74,.35);border-radius:999px;padding:4px 12px;margin-bottom:14px;
}
.block-head h2{font-size:clamp(24px,2.8vw,34px);line-height:1.28;margin-bottom:10px}
.block-head p{color:var(--text-300);font-size:15px;max-width:620px}
.sub-head{
  display:flex;align-items:center;gap:12px;margin:36px 0 18px;
  font-size:19px;font-weight:600;color:var(--text-100);
}
.sub-head::before{content:"";width:4px;height:20px;border-radius:2px;background:linear-gradient(180deg,var(--brand),var(--lime))}
.sub-head .count{font-size:12px;color:var(--text-300);font-weight:400;letter-spacing:.04em}

/* 内容卡 */
.card-grid{display:grid;gap:24px;grid-template-columns:1fr}
@media(min-width:768px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:992px){.card-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.zone-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--shadow);
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.zone-card:hover{transform:translateY(-4px);border-color:rgba(46,197,255,.45);box-shadow:0 22px 54px rgba(4,12,24,.65)}
.zone-card .thumb{position:relative;aspect-ratio:16/9;overflow:hidden;border-bottom:1px solid var(--line);background:var(--bg-800)}
.zone-card .thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .24s var(--ease)}
.zone-card:hover .thumb img{transform:scale(1.04)}
.zone-card .thumb .tag{
  position:absolute;left:12px;top:12px;
  font-size:12px;letter-spacing:.04em;color:var(--brand);
  background:rgba(6,14,24,.82);border:1px solid rgba(46,197,255,.5);
  border-radius:999px;padding:3px 10px;backdrop-filter:blur(6px);
}
.zone-card .body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.zone-card h3{font-size:19px;line-height:1.4}
.zone-card p{font-size:14px;color:var(--text-300);line-height:1.8}
.zone-card .meta{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:12.5px;color:var(--text-300);
}
.zone-card .meta a{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-size:13px}
.zone-card .meta a:hover{color:var(--brand-hover)}

/* 速览票券条 */
.ticket-list{display:flex;flex-direction:column;gap:14px}
.ticket{
  display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:18px;
  padding:18px 20px;border-radius:14px;
  background:linear-gradient(90deg,rgba(46,197,255,.10),rgba(15,34,55,.85) 45%);
  border:1px solid var(--line);
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.ticket:hover{border-color:rgba(46,197,255,.45)}
.ticket .num{
  font-size:22px;font-weight:700;color:var(--brand);min-width:44px;
  font-variant-numeric:tabular-nums;letter-spacing:.02em;
}
.ticket .txt strong{display:block;font-size:15.5px;color:var(--text-100);margin-bottom:2px;font-weight:600}
.ticket .txt span{font-size:13.5px;color:var(--text-300)}
.ticket .state{
  font-size:12px;letter-spacing:.04em;padding:4px 12px;border-radius:999px;
  border:1px dashed rgba(198,255,74,.45);color:var(--lime);white-space:nowrap;
}
@media(max-width:575px){
  .ticket{grid-template-columns:auto 1fr;gap:12px;padding:16px}
  .ticket .state{grid-column:2;justify-self:start;margin-top:6px}
}

/* 时间轴 */
.timeline{position:relative;padding-left:28px}
.timeline::before{content:"";position:absolute;left:7px;top:6px;bottom:6px;width:2px;background:linear-gradient(180deg,rgba(46,197,255,.7),rgba(198,255,74,.35),transparent)}
.tl-item{position:relative;padding-bottom:28px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-28px;top:6px;width:16px;height:16px;border-radius:50%;
  background:var(--bg-900);border:2px solid var(--brand);box-shadow:0 0 14px rgba(46,197,255,.4);
}
.tl-item h3{font-size:17px;margin-bottom:6px}
.tl-item p{font-size:14.5px;color:var(--text-300)}
.tl-item .step{font-size:12px;letter-spacing:.08em;color:var(--lime);display:block;margin-bottom:4px}

/* 相关链接胶囊 */
.link-capsules{display:flex;flex-wrap:wrap;gap:10px;margin-top:8px}
.link-capsules a{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 18px;border-radius:999px;font-size:14px;
  border:1px solid var(--line);color:var(--text-100);background:rgba(15,34,55,.7);
  transition:all .2s var(--ease);
}
.link-capsules a:hover{border-color:rgba(46,197,255,.55);color:var(--brand);background:rgba(46,197,255,.10);transform:translateY(-2px)}
.link-capsules a .dot{width:6px;height:6px;border-radius:50%;background:var(--lime)}

/* CTA 条 */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--r-glass);border:1px solid rgba(46,197,255,.28);
  background:
    radial-gradient(560px 220px at 12% 0%,rgba(46,197,255,.24),transparent 70%),
    linear-gradient(120deg,rgba(15,34,55,.96),rgba(10,22,38,.96));
  padding:36px 28px;
  display:grid;gap:20px;
  box-shadow:var(--shadow);
}
@media(min-width:768px){.cta-band{grid-template-columns:1fr auto;align-items:center;padding:40px 40px}}
.cta-band h2{font-size:clamp(22px,2.4vw,28px);margin-bottom:8px}
.cta-band p{color:var(--text-300);font-size:14.5px;max-width:520px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  border:1px solid var(--line);border-radius:14px;background:rgba(15,34,55,.72);
  overflow:hidden;transition:border-color .2s var(--ease);
}
.faq-item[open]{border-color:rgba(46,197,255,.5)}
.faq-item summary{
  cursor:pointer;list-style:none;position:relative;
  padding:16px 52px 16px 24px;font-size:15.5px;font-weight:600;color:var(--text-100);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"";position:absolute;left:11px;top:18px;bottom:18px;width:2px;border-radius:2px;
  background:rgba(46,197,255,.55);transition:background .2s var(--ease);
}
.faq-item[open] summary::before{background:var(--lime)}
.faq-item summary::after{
  content:"+";position:absolute;right:18px;top:50%;transform:translateY(-50%);
  font-size:20px;font-weight:400;color:var(--brand);line-height:1;
  transition:transform .24s var(--ease);
}
.faq-item[open] summary::after{content:"−";color:var(--lime)}
.faq-body{padding:0 24px 18px 24px;color:var(--text-300);font-size:14.5px;line-height:1.8}
.faq-body a{text-decoration:underline;text-underline-offset:3px}

/* 页脚 */
.site-footer{border-top:1px solid var(--line);background:var(--bg-800);padding:56px 0 0;margin-top:0}
.footer-grid{display:grid;gap:36px;grid-template-columns:1fr;padding-bottom:40px}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:992px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr}}
.f-brand p{color:var(--text-300);font-size:14px;margin-top:14px;max-width:300px}
.f-col h4{font-size:14px;letter-spacing:.04em;color:var(--text-100);margin-bottom:14px;font-weight:600}
.f-col ul{display:flex;flex-direction:column;gap:10px}
.f-col li,.f-col a{font-size:14px;color:var(--text-300)}
.f-col a:hover{color:var(--brand)}
.footer-bottom{
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  padding:18px 20px 22px;font-size:12px;color:var(--text-300);
}
@media(min-width:992px){.footer-bottom{padding:18px 32px 22px}}

@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .zone-card:hover,.btn-glow:hover,.btn-ghost:hover,.link-capsules a:hover{transform:none}
}

@media(min-width:768px){.nav-toggle{display:none!important}}
@media(max-width:767px){.nav-search{display:none}.nav-cta{display:none}}

/* roulang page: category4 */
:root{
  --bg-900:#060E18;
  --bg-800:#0A1626;
  --surface:#0F2237;
  --surface-2:#122A44;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(46,197,255,.45);
  --brand:#2EC5FF;
  --brand-hover:#58D6FF;
  --lime:#C6FF4A;
  --amber:#FFB43A;
  --danger:#FF5C7A;
  --text-100:#F2F7FF;
  --text-300:#A9BCD2;
  --r-card:18px;
  --r-glass:20px;
  --r-img:14px;
  --r-input:12px;
  --shadow:0 18px 48px rgba(4,12,24,.55);
  --ease:cubic-bezier(.2,.7,.3,1);
  --header-h:117px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg-900);
  color:var(--text-100);
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease);}
a:hover{color:var(--brand);}
button,input,select,textarea{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.2px;}
p{margin:0 0 16px;}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:6px;}

.container-xl{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:992px){
  .container-xl{padding-left:32px;padding-right:32px;}
}

/* ============ header ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1000;
  background:rgba(7,15,28,.82);
  -webkit-backdrop-filter:blur(16px) saturate(130%);
  backdrop-filter:blur(16px) saturate(130%);
  border-bottom:1px solid var(--line);
}
.nav-top-inner{
  display:flex;
  align-items:center;
  gap:20px;
  height:68px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:700;
  letter-spacing:.5px;
  color:var(--text-100);
  flex:0 0 auto;
}
.brand:hover{color:var(--text-100);}
.brand-mark{
  width:34px;height:34px;
  display:grid;place-items:center;
  border-radius:10px;
  background:rgba(46,197,255,.10);
  border:1px solid rgba(46,197,255,.45);
  box-shadow:0 0 16px rgba(46,197,255,.22);
}
.brand-mark svg{width:21px;height:21px;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-sub{font-size:12px;font-weight:400;letter-spacing:.4px;color:var(--text-300);}
.nav-search{
  position:relative;
  flex:1 1 auto;
  max-width:420px;
  margin-left:auto;
  display:flex;
  align-items:center;
}
.nav-search input{
  width:100%;
  height:40px;
  padding:0 44px 0 16px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(6,14,24,.72);
  color:var(--text-100);
  font-size:14px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-search input::placeholder{color:rgba(169,188,210,.6);}
.nav-search input:focus{
  outline:none;
  border-color:var(--lime);
  box-shadow:0 0 0 3px rgba(198,255,74,.16);
}
.nav-search button{
  position:absolute;
  right:6px;
  top:50%;
  transform:translateY(-50%);
  width:30px;height:30px;
  display:grid;place-items:center;
  border:0;border-radius:50%;
  background:transparent;
  color:var(--text-300);
  cursor:pointer;
}
.nav-search button:hover{color:var(--brand);background:rgba(46,197,255,.12);}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-toggle{
  display:none;
  width:40px;height:40px;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(15,34,55,.8);
  color:var(--text-100);
  cursor:pointer;
  align-items:center;
  justify-content:center;
}
.nav-toggle span{
  display:block;width:18px;height:2px;border-radius:2px;background:currentColor;position:relative;
}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:currentColor;transition:transform .22s var(--ease);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

.channel-bar{
  background:rgba(7,15,28,.86);
  border-bottom:1px solid var(--line);
}
.channel-inner{
  display:flex;
  align-items:center;
  gap:8px;
  height:48px;
  overflow-x:auto;
  scroll-snap-type:x proximity;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.channel-inner::-webkit-scrollbar{display:none;}
.chan{
  flex:0 0 auto;
  scroll-snap-align:start;
  padding:6px 16px;
  border-radius:999px;
  border:1px solid transparent;
  font-size:14px;
  color:var(--text-300);
  white-space:nowrap;
}
.chan:hover{color:var(--text-100);background:rgba(46,197,255,.08);}
.chan.is-active{
  background:rgba(46,197,255,.16);
  border-color:rgba(46,197,255,.45);
  color:var(--brand);
  font-weight:600;
}

/* mobile drawer */
.mobile-drawer{
  position:fixed;
  inset:0;
  z-index:1200;
  display:flex;
  flex-direction:column;
  padding:24px 20px 32px;
  background:rgba(6,14,24,.98);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  transform:translateY(-102%);
  opacity:0;
  visibility:hidden;
  transition:transform .3s var(--ease),opacity .25s var(--ease),visibility .3s;
}
.mobile-drawer.is-open{transform:translateY(0);opacity:1;visibility:visible;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;}
.drawer-close{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line);
  background:transparent;color:var(--text-100);cursor:pointer;font-size:20px;line-height:1;
}
.drawer-link{
  display:block;
  padding:14px 16px;
  border-radius:14px;
  border:1px solid var(--line);
  margin-bottom:10px;
  color:var(--text-100);
  font-size:16px;
  background:rgba(15,34,55,.6);
}
.drawer-link.is-active{border-color:rgba(46,197,255,.45);color:var(--brand);background:rgba(46,197,255,.12);}
.drawer-cta{margin-top:18px;}

/* ============ buttons ============ */
.btn-glow,.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 26px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  cursor:pointer;
  border:1px solid transparent;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.btn-glow{
  background:linear-gradient(100deg,#2EC5FF 0%,#7BE3C6 62%,#C6FF4A 100%);
  color:#04121C;
  box-shadow:0 10px 28px rgba(46,197,255,.28);
  border-color:rgba(255,255,255,.22);
}
.btn-glow:hover{
  color:#04121C;
  transform:translateY(-2px);
  box-shadow:0 14px 36px rgba(46,197,255,.45);
}
.btn-glow:active{transform:translateY(1px);}
.btn-ghost{
  background:transparent;
  border-color:rgba(46,197,255,.55);
  color:var(--brand);
}
.btn-ghost:hover{background:rgba(46,197,255,.12);color:var(--brand-hover);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}

/* ============ banner ============ */
.page-banner{
  position:relative;
  overflow:hidden;
  padding:56px 0 52px;
  border-bottom:1px solid var(--line);
  background-image:linear-gradient(180deg,rgba(6,14,24,.74),rgba(6,14,24,.92)),url('/assets/images/backpic/back-3.png');
  background-size:cover;
  background-position:center;
  background-repeat:no-repeat;
}
.page-banner::before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:
    radial-gradient(720px 260px at 10% -20%,rgba(46,197,255,.30),transparent 70%),
    linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:auto,48px 48px,48px 48px;
}
.banner-inner{position:relative;z-index:1;}
.crumbs{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-300);
  margin-bottom:18px;
}
.crumbs a{color:var(--text-300);}
.crumbs a:hover{color:var(--brand);}
.crumbs .sep{color:rgba(169,188,210,.55);}
.crumbs .cur{color:var(--text-100);}
.page-banner h1{
  font-size:clamp(30px,4.4vw,46px);
  line-height:1.22;
  max-width:820px;
  margin-bottom:16px;
}
.banner-lead{
  max-width:640px;
  font-size:16.5px;
  color:var(--text-300);
  margin-bottom:22px;
}
.banner-tags{display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  display:inline-flex;
  align-items:center;
  padding:5px 14px;
  border-radius:999px;
  border:1px solid rgba(46,197,255,.35);
  background:rgba(46,197,255,.10);
  color:var(--brand);
  font-size:12px;
  letter-spacing:.04em;
}
.tag.lime{border-color:rgba(198,255,74,.4);background:rgba(198,255,74,.10);color:var(--lime);}

/* ============ layout ============ */
.page-layout{
  padding-top:48px;
  padding-bottom:72px;
}
@media (min-width:992px){
  .page-layout{
    display:grid;
    grid-template-columns:200px minmax(0,1fr);
    gap:48px;
    padding-top:64px;
    padding-bottom:88px;
  }
}
.anchor-nav{margin-bottom:28px;}
@media (min-width:992px){
  .anchor-nav{
    position:sticky;
    top:calc(var(--header-h) + 20px);
    align-self:start;
    margin-bottom:0;
  }
}
.anchor-title{
  font-size:12px;
  letter-spacing:.08em;
  color:rgba(169,188,210,.8);
  margin-bottom:10px;
  padding-left:12px;
}
.anchor-nav ul{
  display:flex;
  gap:8px;
  overflow-x:auto;
  scrollbar-width:none;
  padding-bottom:4px;
}
.anchor-nav ul::-webkit-scrollbar{display:none;}
@media (min-width:992px){
  .anchor-nav ul{display:grid;gap:2px;overflow:visible;}
}
.anchor-nav a{
  display:block;
  white-space:nowrap;
  padding:7px 14px;
  border-radius:999px;
  border:1px solid var(--line);
  font-size:14px;
  color:var(--text-300);
}
.anchor-nav a:hover{color:var(--text-100);border-color:rgba(46,197,255,.35);}
@media (min-width:992px){
  .anchor-nav a{
    border:0;
    border-left:2px solid transparent;
    border-radius:0;
    padding:9px 12px;
    font-size:14.5px;
  }
  .anchor-nav a:hover{background:rgba(46,197,255,.06);}
  .anchor-nav a.is-active{
    color:var(--brand);
    border-left-color:var(--brand);
    background:rgba(46,197,255,.10);
  }
}
@media (max-width:991px){
  .anchor-nav a.is-active{
    color:var(--brand);
    border-color:rgba(46,197,255,.45);
    background:rgba(46,197,255,.14);
  }
}

/* ============ blocks ============ */
.block{
  margin-bottom:64px;
  scroll-margin-top:calc(var(--header-h) + 18px);
}
.block:last-child{margin-bottom:0;}
.block-head{margin-bottom:22px;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--brand);
  margin-bottom:10px;
}
.eyebrow::before{
  content:"";
  width:22px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--lime));
}
.block h2{
  font-size:clamp(24px,2.8vw,32px);
  line-height:1.3;
  margin-bottom:10px;
}
.block h3{
  font-size:20px;
  line-height:1.4;
  margin-bottom:12px;
}
.lead-text{color:var(--text-300);font-size:16px;max-width:760px;}
.body-text{color:var(--text-300);font-size:15.8px;}
.body-text strong{color:var(--text-100);font-weight:600;}

/* type grid */
.type-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:14px;
  margin-top:24px;
}
@media (min-width:768px){
  .type-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
.type-card{
  padding:18px 20px;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:rgba(15,34,55,.72);
  transition:border-color .24s var(--ease),background-color .24s var(--ease);
}
.type-card:hover{border-color:var(--line-strong);background:rgba(18,42,68,.85);}
.type-card h3{font-size:16.5px;margin-bottom:6px;}
.type-card p{font-size:14.5px;color:var(--text-300);margin:0;}
.type-card .num{
  display:inline-block;
  font-size:12px;
  color:var(--brand);
  letter-spacing:.08em;
  font-variant-numeric:tabular-nums;
  margin-bottom:6px;
}

/* faq */
.faq-group{margin-bottom:30px;}
.faq-group h3{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:17.5px;
  margin-bottom:14px;
}
.faq-group h3::before{
  content:"";
  width:4px;height:18px;border-radius:2px;
  background:linear-gradient(180deg,var(--brand),var(--lime));
}
.faq-item{
  border:1px solid var(--line);
  border-radius:14px;
  background:rgba(15,34,55,.68);
  margin-bottom:10px;
  overflow:hidden;
  transition:border-color .22s var(--ease),background-color .22s var(--ease);
}
.faq-item:hover{border-color:rgba(46,197,255,.3);}
.faq-item[open]{border-color:rgba(46,197,255,.45);background:rgba(18,42,68,.8);}
.faq-item summary{
  display:flex;
  align-items:center;
  gap:12px;
  padding:15px 18px;
  cursor:pointer;
  font-size:15.5px;
  font-weight:600;
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::marker{content:"";}
.faq-item .sign{
  position:relative;
  flex:0 0 20px;
  width:20px;height:20px;
  margin-left:auto;
  border-radius:6px;
  border:1px solid rgba(46,197,255,.4);
  background:rgba(46,197,255,.10);
}
.faq-item .sign::before,
.faq-item .sign::after{
  content:"";
  position:absolute;
  background:var(--brand);
  border-radius:2px;
  transition:transform .24s var(--ease),opacity .2s var(--ease);
}
.faq-item .sign::before{left:4px;right:4px;top:8.5px;height:2px;}
.faq-item .sign::after{top:4px;bottom:4px;left:8.5px;width:2px;}
.faq-item[open] .sign::after{transform:rotate(90deg);opacity:0;}
.faq-item .answer{
  padding:0 18px 18px;
  color:var(--text-300);
  font-size:15px;
  line-height:1.85;
  margin:0;
}

/* table */
.table-wrap{
  overflow-x:auto;
  border:1px solid var(--line);
  border-radius:14px;
  background:rgba(15,34,55,.6);
  margin-top:20px;
}
table.codes{
  width:100%;
  min-width:560px;
  border-collapse:collapse;
  font-size:15px;
}
.codes thead th{
  text-align:left;
  padding:14px 18px;
  font-size:13px;
  letter-spacing:.04em;
  color:var(--text-100);
  background:rgba(46,197,255,.10);
  font-weight:600;
  white-space:nowrap;
}
.codes td{
  padding:14px 18px;
  border-top:1px solid var(--line);
  color:var(--text-300);
  vertical-align:top;
}
.codes tbody tr:nth-child(even){background:rgba(255,255,255,.03);}
.codes tbody tr:hover{background:rgba(46,197,255,.07);}
.codes code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:14px;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
  letter-spacing:.03em;
}
.table-note{
  font-size:13.5px;
  color:rgba(169,188,210,.85);
  margin:12px 0 0;
}

/* timeline */
.timeline{margin-top:24px;}
.timeline li{
  position:relative;
  padding:0 0 26px 56px;
}
.timeline li:last-child{padding-bottom:0;}
.timeline li::before{
  content:"";
  position:absolute;
  left:17px;
  top:38px;
  bottom:2px;
  width:2px;
  background:linear-gradient(180deg,rgba(46,197,255,.7),rgba(46,197,255,.08));
}
.timeline li:last-child::before{display:none;}
.timeline .dot{
  position:absolute;
  left:0;top:0;
  width:36px;height:36px;
  display:grid;place-items:center;
  border-radius:12px;
  border:1px solid rgba(46,197,255,.4);
  background:rgba(46,197,255,.12);
  color:var(--brand);
  font-size:13px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
}
.timeline h3{font-size:16.5px;margin-bottom:6px;}
.timeline p{margin:0;font-size:15px;color:var(--text-300);}

/* split */
.split{
  display:grid;
  grid-template-columns:1fr;
  gap:26px;
  align-items:center;
}
@media (min-width:768px){
  .split{grid-template-columns:1fr 1fr;gap:36px;}
}
.split figure{margin:0;position:relative;}
.split img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:var(--r-img);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.split figcaption{
  font-size:12.5px;
  color:rgba(169,188,210,.8);
  text-align:center;
  margin-top:10px;
}
.check-list{display:grid;gap:12px;margin-top:18px;}
.check-list li{
  position:relative;
  padding-left:32px;
  color:var(--text-300);
  font-size:15.2px;
}
.check-list li::before{
  content:"";
  position:absolute;
  left:0;top:7px;
  width:18px;height:18px;
  border-radius:50%;
  background:rgba(198,255,74,.14);
  border:1px solid rgba(198,255,74,.55);
}
.check-list li::after{
  content:"";
  position:absolute;
  left:6px;top:12px;
  width:6px;height:3px;
  border-left:2px solid var(--lime);
  border-bottom:2px solid var(--lime);
  transform:rotate(-45deg);
}

/* ask grid */
.ask-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:20px;
}
@media (min-width:992px){
  .ask-grid{grid-template-columns:1.35fr 1fr;gap:24px;}
}
.panel{
  background:rgba(15,34,55,.9);
  border:1px solid var(--line);
  border-radius:var(--r-glass);
  padding:24px;
  box-shadow:var(--shadow);
}
@supports ((-webkit-backdrop-filter:blur(2px)) or (backdrop-filter:blur(2px))){
  .panel{
    background:rgba(15,34,55,.72);
    -webkit-backdrop-filter:blur(14px) saturate(130%);
    backdrop-filter:blur(14px) saturate(130%);
  }
}
.panel h3{font-size:18px;margin-bottom:6px;}
.panel .panel-sub{font-size:14px;color:var(--text-300);margin-bottom:18px;}
.field{margin-bottom:16px;}
.field label{
  display:block;
  font-size:13px;
  color:var(--text-300);
  margin-bottom:6px;
  letter-spacing:.02em;
}
.field .form-control,
.field .form-select{
  width:100%;
  background:rgba(6,14,24,.72);
  border:1px solid var(--line);
  border-radius:var(--r-input);
  color:var(--text-100);
  padding:11px 14px;
  font-size:15px;
  line-height:1.6;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field textarea.form-control{min-height:104px;resize:vertical;}
.field .form-control::placeholder{color:rgba(169,188,210,.6);}
.field .form-control:focus,
.field .form-select:focus{
  outline:none;
  border-color:var(--lime);
  box-shadow:0 0 0 3px rgba(198,255,74,.18);
}
.field .form-select{
  appearance:none;
  background-image:linear-gradient(45deg,transparent 50%,var(--text-300) 50%),linear-gradient(135deg,var(--text-300) 50%,transparent 50%);
  background-position:calc(100% - 20px) 20px,calc(100% - 14px) 20px;
  background-size:6px 6px,6px 6px;
  background-repeat:no-repeat;
}
.form-success{
  display:none;
  margin-top:14px;
  padding:12px 16px;
  border-radius:12px;
  border:1px solid rgba(198,255,74,.5);
  background:rgba(198,255,74,.10);
  color:var(--lime);
  font-size:14px;
}
.form-success.is-visible{display:block;}
.info-list{display:grid;gap:14px;}
.info-list li{
  padding-bottom:14px;
  border-bottom:1px dashed rgba(255,255,255,.10);
  font-size:14.6px;
  color:var(--text-300);
}
.info-list li:last-child{border-bottom:0;padding-bottom:0;}
.info-list strong{display:block;color:var(--text-100);font-size:14.6px;margin-bottom:2px;font-weight:600;}
.badge-soft{
  display:inline-flex;
  align-items:center;
  padding:3px 10px;
  border-radius:999px;
  font-size:12px;
  letter-spacing:.04em;
  border:1px solid rgba(255,180,58,.45);
  background:rgba(255,180,58,.12);
  color:var(--amber);
  margin-left:8px;
  vertical-align:middle;
}

/* pills + cta */
.pill-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:6px;}
.pill-link{
  padding:8px 18px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(15,34,55,.6);
  color:var(--text-300);
  font-size:14px;
}
.pill-link:hover{
  color:var(--brand);
  border-color:rgba(46,197,255,.45);
  background:rgba(46,197,255,.10);
}
.cta-band{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  margin-top:24px;
  padding:26px 28px;
  border-radius:var(--r-glass);
  border:1px solid rgba(46,197,255,.3);
  background-image:linear-gradient(110deg,rgba(46,197,255,.16),rgba(198,255,74,.08));
  background-color:var(--surface);
}
.cta-band h3{font-size:19px;margin-bottom:6px;}
.cta-band p{margin:0;color:var(--text-300);font-size:14.6px;}
.cta-band .cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* footer */
.site-footer{
  border-top:1px solid var(--line);
  background:var(--bg-800);
  padding-top:52px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:30px;
  padding-bottom:40px;
}
@media (min-width:576px){
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (min-width:992px){
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;}
}
.f-brand p{
  color:var(--text-300);
  font-size:14px;
  margin:14px 0 0;
  max-width:320px;
  line-height:1.8;
}
.f-col h4{
  font-size:14px;
  margin-bottom:14px;
  color:var(--text-100);
  letter-spacing:.04em;
}
.f-col ul{display:grid;gap:10px;}
.f-col li,
.f-col a{font-size:14px;color:var(--text-300);}
.f-col a:hover{color:var(--brand);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  align-items:center;
  border-top:1px solid var(--line);
  padding:18px 0 22px;
  font-size:12px;
  color:rgba(169,188,210,.8);
}
.footer-bottom span{line-height:1.7;}

@media (max-width:991px){
  .nav-search{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-actions .btn-glow{display:none;}
}
@media (max-width:575px){
  .page-banner{padding:40px 0 38px;}
  .block{margin-bottom:52px;}
  .cta-band{padding:22px 20px;}
  .panel{padding:20px;}
  .btn-glow,.btn-ghost{width:100%;}
  .cta-band .cta-actions{width:100%;}
  .brand{font-size:16px;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    box-shadow:none !important;
  }
  .btn-glow:hover,.btn-ghost:hover{transform:none;}
}