/* roulang page: index */
:root{
  --bg-900:#060B14;
  --bg-800:#0A1220;
  --panel:rgba(255,255,255,.045);
  --panel-strong:rgba(255,255,255,.07);
  --brand:#2F6BFF;
  --brand-2:#1B4BD8;
  --glow:#3BE0F0;
  --silver:#C3CFE0;
  --text-1:#EAF1FA;
  --text-2:#A9B7CC;
  --text-3:#74839A;
  --accent:#FFB020;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --metal:linear-gradient(135deg,#E9F0FA 0%,#8FA0B8 55%,#D6E0EC 100%);
  --radius-lg:20px;
  --radius:16px;
  --radius-sm:12px;
  --shadow-card:0 20px 45px -25px rgba(0,0,0,.85);
  --ease:cubic-bezier(.2,.7,.3,1);
  --bs-body-bg:var(--bg-900);
  --bs-body-color:var(--text-1);
  --bs-border-color:var(--line);
  --bs-primary:var(--brand);
  --bs-link-color:var(--glow);
  --bs-link-hover-color:var(--glow);
  --bs-font-sans-serif:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--bg-900);
  color:var(--text-1);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  position:relative;
}
body::before,body::after{
  content:"";position:fixed;pointer-events:none;z-index:0;border-radius:50%;
}
body::before{
  width:720px;height:720px;top:-260px;right:-180px;
  background:radial-gradient(circle,rgba(59,224,240,.10) 0%,rgba(59,224,240,0) 68%);
  filter:blur(120px);
}
body::after{
  width:640px;height:640px;bottom:-240px;left:-200px;
  background:radial-gradient(circle,rgba(47,107,255,.10) 0%,rgba(47,107,255,0) 70%);
  filter:blur(120px);
}
img{max-width:100%;display:block}
a{color:var(--glow);text-decoration:none;transition:color .25s var(--ease)}
a:hover{color:#7CF0FA}
p{margin:0 0 1em}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:-0.01em}
ul{margin:0;padding:0;list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--glow);outline-offset:2px;border-radius:6px}
.container,.container-lg,.container-md,.container-sm,.container-xl{
  width:100%;max-width:1280px;margin:0 auto;padding-left:32px;padding-right:32px;
}
.num{font-variant-numeric:tabular-nums;font-weight:600;letter-spacing:.02em}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(6,11,20,.88);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.nav-top{display:flex;align-items:center;gap:22px;height:64px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  font-size:14px;font-weight:700;color:#0A1220;background:var(--metal);
  box-shadow:0 0 18px -6px rgba(59,224,240,.65);
}
.brand-text{
  font-size:17px;font-weight:700;letter-spacing:.02em;white-space:nowrap;
  background:var(--metal);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.nav-search{position:relative;flex:1;max-width:400px}
.nav-search i{position:absolute;left:15px;top:50%;transform:translateY(-50%);font-size:13px;color:var(--text-3);pointer-events:none}
.nav-search input{
  width:100%;height:40px;border-radius:999px;padding:0 16px 0 38px;
  background:var(--panel);border:1px solid var(--line);color:var(--text-1);
  font-size:14px;outline:none;transition:all .28s var(--ease);
}
.nav-search input::placeholder{color:var(--text-3)}
.nav-search input:focus{border-color:var(--glow);box-shadow:0 0 0 4px rgba(59,224,240,.12);background:var(--panel-strong)}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:12px;border:1px solid var(--line);
  background:var(--panel);color:var(--text-1);cursor:pointer;
}
.btn-glow{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:12px;border:none;cursor:pointer;
  font-size:15px;font-weight:600;color:#fff;white-space:nowrap;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  box-shadow:0 0 22px -6px rgba(47,107,255,.75);
  transition:all .28s var(--ease);
}
.btn-glow:hover{color:#fff;transform:translateY(-1px);box-shadow:0 0 32px -6px rgba(47,107,255,.9);filter:brightness(1.06)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:12px;cursor:pointer;
  font-size:15px;font-weight:600;color:var(--text-1);
  background:transparent;border:1px solid rgba(195,207,224,.45);
  transition:all .28s var(--ease);
}
.btn-ghost:hover{color:var(--text-1);border-color:var(--glow);background:rgba(59,224,240,.08)}
.btn-sm{height:40px;padding:0 20px;font-size:14px;border-radius:10px}
.nav-channels{
  display:flex;gap:8px;overflow-x:auto;padding:2px 0 10px;
  scrollbar-width:none;-ms-overflow-style:none;
  -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 20px,#000 calc(100% - 20px),transparent 100%);
  mask-image:linear-gradient(90deg,transparent 0,#000 20px,#000 calc(100% - 20px),transparent 100%);
}
.nav-channels::-webkit-scrollbar{display:none}
.channel{
  flex:0 0 auto;height:34px;display:inline-flex;align-items:center;padding:0 16px;
  border-radius:999px;font-size:14px;color:var(--text-2);
  border:1px solid transparent;transition:all .25s var(--ease);
}
.channel:hover{background:rgba(255,255,255,.06);color:var(--text-1)}
.channel.active{
  color:var(--glow);border-color:rgba(59,224,240,.55);
  background:rgba(59,224,240,.08);box-shadow:0 0 20px -8px rgba(59,224,240,.75);
}
.mobile-panel{display:none;padding:12px 0 18px;border-top:1px solid var(--line)}
.mobile-panel.open{display:block}
.mobile-panel a{display:block;padding:11px 4px;color:var(--text-2);border-bottom:1px solid rgba(255,255,255,.05);font-size:15px}
.mobile-panel a:hover{color:var(--glow)}

/* ---------- Hero ---------- */
.hero{padding:76px 0 88px;position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.hero-copy{max-width:620px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 13px;
  border-radius:999px;font-size:13px;color:var(--glow);
  background:rgba(59,224,240,.10);border:1px solid rgba(59,224,240,.28);margin-bottom:20px;
}
.hero h1{font-size:52px;line-height:1.24;margin-bottom:20px}
.hero h1 .hl{
  background:linear-gradient(135deg,#6BF0FF 0%,#3BE0F0 55%,#2F6BFF 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:17px;color:var(--text-2);max-width:560px;margin-bottom:30px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:40px}
.metrics{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  border-top:1px solid var(--line);padding-top:24px;
}
.metric{padding-right:20px;border-right:1px solid var(--line)}
.metric:last-child{border-right:none}
.metric .val{font-size:28px;color:var(--text-1);font-variant-numeric:tabular-nums;font-weight:600;letter-spacing:.02em;line-height:1.2}
.metric .val span{font-size:14px;color:var(--text-3);margin-left:2px}
.metric .cap{font-size:13px;color:var(--text-3);margin-top:6px}
.hero-visual{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:0 0 60px -22px rgba(59,224,240,.55),0 34px 70px -34px rgba(0,0,0,.95);
}
.hero-visual::after{
  content:"";position:absolute;inset:0;border-radius:var(--radius-lg);padding:1px;
  background:linear-gradient(135deg,rgba(233,240,250,.8) 0%,rgba(143,160,184,.15) 48%,rgba(59,224,240,.4) 100%);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none;
}
.hero-visual img{width:100%;aspect-ratio:16/10;object-fit:cover}
.hero-veil{position:absolute;inset:0;background:linear-gradient(315deg,rgba(6,11,20,.92) 0%,rgba(6,11,20,.35) 42%,rgba(6,11,20,0) 72%)}
.hero-float{
  position:absolute;left:20px;bottom:20px;z-index:2;
  display:inline-flex;align-items:center;gap:9px;height:38px;padding:0 16px;
  border-radius:999px;font-size:13px;color:var(--text-1);
  background:rgba(10,18,32,.72);border:1px solid var(--line-strong);backdrop-filter:blur(10px);
}
.hero-float i{color:var(--glow);font-size:12px}

/* ---------- 通用区块 ---------- */
.section{padding:96px 0;position:relative;z-index:1}
.section-alt{background:rgba(10,18,32,.55);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{margin-bottom:46px;display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.section-head h2{font-size:34px}
.section-head .desc{font-size:15px;color:var(--text-2);margin-top:12px;max-width:640px}
.link-more{font-size:14px;display:inline-flex;align-items:center;gap:7px;color:var(--glow);border-bottom:1px solid rgba(59,224,240,.4);padding-bottom:3px}
.link-more:hover{border-bottom-color:var(--glow)}

/* ---------- 卡片 ---------- */
.glass{
  position:relative;background:var(--panel);border:1px solid var(--line);
  border-radius:var(--radius);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card),0 1px 0 rgba(255,255,255,.06) inset;
  transition:transform .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.glass::before{
  content:"";position:absolute;top:0;left:14px;right:14px;height:1px;border-radius:2px;
  background:linear-gradient(90deg,rgba(233,240,250,0),rgba(233,240,250,.55),rgba(233,240,250,0));
}
.glass:hover{transform:translateY(-4px);border-color:rgba(59,224,240,.35);box-shadow:0 0 28px -6px rgba(59,224,240,.35),var(--shadow-card)}
.pad{padding:26px}

/* 卖点非对称 */
.value-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:24px}
.value-stack{display:grid;gap:24px}
.value-main{display:flex;flex-direction:column;justify-content:space-between;padding:32px}
.value-main h3{font-size:22px;margin-bottom:14px}
.value-main p{color:var(--text-2);font-size:15px;margin-bottom:26px}
.value-icon{
  width:48px;height:48px;border-radius:14px;display:grid;place-items:center;
  background:rgba(59,224,240,.10);border:1px solid rgba(59,224,240,.28);
  color:var(--glow);font-size:19px;margin-bottom:20px;
}
.value-list{display:grid;gap:11px;margin-top:8px}
.value-list li{display:flex;gap:10px;font-size:14px;color:var(--text-2)}
.value-list i{color:var(--glow);font-size:12px;margin-top:7px}
.value-small{padding:24px 26px;display:grid;grid-template-columns:auto 1fr;gap:18px;align-items:start}
.value-small .ico{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  background:rgba(47,107,255,.14);border:1px solid rgba(47,107,255,.35);color:#9DBBFF;font-size:16px;
}
.value-small h3{font-size:18px;margin-bottom:8px}
.value-small p{font-size:14px;color:var(--text-2);margin:0}

/* ---------- 场景步骤 ---------- */
.steps{display:grid;grid-template-columns:300px 1fr;gap:36px;align-items:start}
.step-nav{display:grid;gap:14px}
.step-btn{
  display:flex;align-items:center;gap:16px;padding:16px 18px;border-radius:var(--radius);
  background:transparent;border:1px solid var(--line);cursor:pointer;text-align:left;
  color:var(--text-2);transition:all .28s var(--ease);
}
.step-btn .idx{
  flex:0 0 auto;width:38px;height:38px;border-radius:50%;display:grid;place-items:center;
  font-size:14px;font-variant-numeric:tabular-nums;font-weight:600;
  border:1px solid rgba(195,207,224,.45);color:var(--silver);
  transition:all .28s var(--ease);
}
.step-btn strong{display:block;font-size:15px;color:var(--text-1);font-weight:600}
.step-btn span{font-size:13px;color:var(--text-3)}
.step-btn.active{border-color:rgba(59,224,240,.5);background:rgba(59,224,240,.07);box-shadow:0 0 26px -10px rgba(59,224,240,.8)}
.step-btn.active .idx{border-color:var(--glow);color:var(--glow);box-shadow:0 0 18px -4px rgba(59,224,240,.9)}
.step-panels{position:relative;min-height:380px}
.step-panel{display:none;padding:30px;animation:fadeUp .4s var(--ease)}
.step-panel.active{display:block}
@keyframes fadeUp{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
.step-panel h3{font-size:20px;margin-bottom:12px}
.step-panel > p{color:var(--text-2);font-size:15px;margin-bottom:22px}
.step-media{border-radius:var(--radius-sm);overflow:hidden;border:1px solid var(--line);margin-bottom:22px}
.step-media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.param-list{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.param{background:rgba(255,255,255,.03);border:1px solid var(--line);border-radius:var(--radius-sm);padding:13px 15px}
.param .k{font-size:12px;color:var(--text-3)}
.param .v{font-size:15px;color:var(--text-1);font-variant-numeric:tabular-nums;font-weight:600;margin-top:3px}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.news-card{overflow:hidden;display:flex;flex-direction:column}
.news-link{display:flex;gap:20px;padding:22px;color:inherit;height:100%}
.news-link:hover{color:inherit}
.news-thumb{flex:0 0 168px;border-radius:var(--radius-sm);overflow:hidden;border:1px solid var(--line);background:var(--bg-800)}
.news-thumb img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover}
.news-body{display:flex;flex-direction:column;min-width:0;flex:1}
.news-meta{display:flex;align-items:center;gap:10px;margin-bottom:10px;flex-wrap:wrap}
.pill{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;color:var(--glow);background:rgba(59,224,240,.10);border:1px solid rgba(59,224,240,.22);
}
.news-meta time{font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums}
.news-body h3{font-size:17px;margin-bottom:9px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-body p{
  font-size:14px;color:var(--text-2);margin-bottom:14px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-body .link-more{margin-top:auto;align-self:flex-start}
.empty-state{text-align:center;padding:70px 20px;border:1px dashed var(--line-strong);border-radius:var(--radius);background:rgba(255,255,255,.02)}
.empty-state .ring{
  width:60px;height:60px;border-radius:50%;margin:0 auto 18px;display:grid;place-items:center;
  border:1px solid rgba(195,207,224,.4);color:var(--text-3);font-size:20px;
}
.empty-state p{color:var(--text-2);font-size:15px;margin-bottom:10px}

/* ---------- 社会认同 ---------- */
.logo-strip{
  display:flex;gap:16px;overflow-x:auto;padding:6px 2px 18px;scrollbar-width:none;
  -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 30px,#000 calc(100% - 30px),transparent 100%);
  mask-image:linear-gradient(90deg,transparent 0,#000 30px,#000 calc(100% - 30px),transparent 100%);
}
.logo-strip::-webkit-scrollbar{display:none}
.logo-chip{
  flex:0 0 auto;height:58px;padding:0 26px;border-radius:14px;display:flex;align-items:center;
  font-size:15px;color:var(--text-2);background:var(--panel);border:1px solid var(--line);
  transition:all .28s var(--ease);white-space:nowrap;
}
.logo-chip:hover{color:var(--text-1);border-color:rgba(59,224,240,.32)}
.quote-wrap{display:grid;grid-template-columns:1.5fr 1fr;gap:24px;margin-top:14px}
.quote-card{padding:36px;position:relative}
.quote-card .mark{font-size:52px;line-height:1;color:rgba(59,224,240,.35);font-family:Georgia,serif;margin-bottom:10px}
.quote-card blockquote{margin:0 0 22px;font-size:19px;line-height:1.8;color:var(--text-1)}
.quote-card cite{font-style:normal;font-size:14px;color:var(--text-3);display:block}
.quote-card cite strong{color:var(--text-2);font-weight:600}
.badges{display:grid;gap:16px;align-content:start}
.badge-card{padding:22px 24px;display:flex;align-items:center;gap:18px}
.badge-card .big{font-size:26px;color:var(--glow);font-variant-numeric:tabular-nums;font-weight:600;letter-spacing:.02em;min-width:96px}
.badge-card .txt{font-size:14px;color:var(--text-2)}

/* ---------- FAQ + 表单 ---------- */
.faq-form{display:grid;grid-template-columns:1.15fr 1fr;gap:32px;align-items:start}
.accordion-item{
  background:var(--panel);border:1px solid var(--line)!important;border-radius:14px!important;
  margin-bottom:12px;overflow:hidden;backdrop-filter:blur(14px);
}
.accordion-button{
  background:transparent!important;color:var(--text-1)!important;font-size:16px;font-weight:600;
  padding:20px 22px;box-shadow:none!important;border-left:3px solid transparent;
}
.accordion-button:not(.collapsed){color:var(--glow)!important;border-left-color:var(--glow);text-shadow:0 0 18px rgba(59,224,240,.35)}
.accordion-button::after{
  background-image:none;content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:13px;color:var(--glow);width:auto;height:auto;transform:none;transition:transform .28s var(--ease);
}
.accordion-button:not(.collapsed)::after{content:"\f068";transform:rotate(0)}
.accordion-body{padding:0 22px 22px;font-size:15px;line-height:1.8;color:var(--text-2)}
.form-card{padding:30px}
.form-card h3{font-size:20px;margin-bottom:8px}
.form-card .hint{font-size:14px;color:var(--text-2);margin-bottom:24px}
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;color:var(--text-2);margin-bottom:8px}
.field label .req{color:var(--accent);margin-left:3px}
.field input,.field select,.field textarea{
  width:100%;background:var(--panel);border:1px solid rgba(195,207,224,.28);
  border-radius:var(--radius-sm);color:var(--text-1);padding:0 15px;height:48px;
  outline:none;transition:all .25s var(--ease);
}
.field textarea{height:96px;padding:12px 15px;resize:vertical;line-height:1.7}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--text-3) 50%),linear-gradient(135deg,var(--text-3) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--glow);box-shadow:0 0 0 4px rgba(59,224,240,.12)}
.form-note{font-size:13px;color:var(--text-3);margin-top:14px}

/* ---------- 底部 CTA 条 ---------- */
.cta-band{
  border-radius:var(--radius-lg);padding:44px 46px;position:relative;overflow:hidden;
  background:linear-gradient(120deg,rgba(47,107,255,.16) 0%,rgba(10,18,32,.9) 45%,rgba(59,224,240,.12) 100%);
  border:1px solid var(--line-strong);
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band h2{font-size:28px;margin-bottom:10px}
.cta-band p{color:var(--text-2);font-size:15px;margin:0}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;z-index:1;background:rgba(6,11,20,.94);
  border-top:1px solid var(--line);padding:72px 0 120px;margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px}
.footer-grid h4{font-size:15px;color:var(--text-1);margin-bottom:18px}
.footer-grid p{font-size:14px;color:var(--text-3);line-height:1.85;max-width:320px}
.footer-links li{margin-bottom:11px}
.footer-links a{font-size:14px;color:var(--text-2)}
.footer-links a:hover{color:var(--glow)}
.footer-bottom{
  margin-top:52px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-3)}
.footer-bottom a:hover{color:var(--glow)}

/* ---------- 固定转化条 ---------- */
.dock{
  position:fixed;right:28px;bottom:28px;z-index:1040;
  display:flex;align-items:center;gap:14px;height:60px;padding:0 12px 0 24px;
  border-radius:999px;background:rgba(10,18,32,.92);border:1px solid var(--line-strong);
  backdrop-filter:blur(16px);box-shadow:0 20px 50px -20px rgba(0,0,0,.95);
  opacity:0;transform:translateY(16px);pointer-events:none;
  transition:opacity .35s var(--ease),transform .35s var(--ease);
}
.dock.show{opacity:1;transform:translateY(0);pointer-events:auto}
.dock .txt{font-size:14px;color:var(--text-2);white-space:nowrap}
.dock .icon-btn{
  width:40px;height:40px;border-radius:50%;display:grid;place-items:center;
  border:1px solid var(--line-strong);color:var(--text-1);background:var(--panel);transition:all .25s var(--ease);
}
.dock .icon-btn:hover{color:var(--glow);border-color:var(--glow);background:rgba(59,224,240,.08)}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .container,.container-lg,.container-md,.container-sm,.container-xl{padding-left:24px;padding-right:24px}
  .hero h1{font-size:44px}
  .section{padding:80px 0}
  .logo-strip{-webkit-mask-image:none;mask-image:none}
}
@media (max-width:991.98px){
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-copy{max-width:100%}
  .steps{grid-template-columns:1fr;gap:22px}
  .step-nav{display:flex;overflow-x:auto;gap:12px;padding-bottom:6px;scrollbar-width:none}
  .step-nav::-webkit-scrollbar{display:none}
  .step-btn{flex:0 0 auto;min-width:220px}
  .value-grid{grid-template-columns:1fr}
  .faq-form{grid-template-columns:1fr}
  .quote-wrap{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{padding:34px 28px}
  .cta-band h2{font-size:24px}
}
@media (max-width:767.98px){
  body{font-size:15px}
  .container,.container-lg,.container-md,.container-sm,.container-xl{padding-left:20px;padding-right:20px}
  .nav-search{display:none}
  .nav-toggle{display:grid;place-items:center}
  .nav-actions .btn-glow{display:none}
  .hero{padding:52px 0 60px}
  .hero h1{font-size:32px}
  .hero-sub{font-size:15px}
  .hero-cta{gap:12px}
  .hero-cta .btn-glow,.hero-cta .btn-ghost{flex:1 1 100%;height:46px}
  .metrics{grid-template-columns:repeat(2,1fr);gap:20px 0}
  .metric{padding-right:16px}
  .metric:nth-child(2){border-right:none}
  .section{padding:58px 0}
  .section-head h2{font-size:26px}
  .news-link{flex-direction:column;gap:14px}
  .news-thumb{flex:0 0 auto;width:100%}
  .param-list{grid-template-columns:1fr}
  .value-small{grid-template-columns:1fr;gap:14px}
  .glass,.accordion-item{backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
  .site-footer{padding:56px 0 132px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .dock{
    left:0;right:0;bottom:0;height:auto;min-height:64px;border-radius:0;
    justify-content:space-between;padding:10px 16px;gap:10px;
  }
  .dock .txt{font-size:13px;white-space:normal;line-height:1.3}
  .dock .btn-glow{height:42px;padding:0 18px;font-size:14px}
}
@media (max-width:575.98px){
  .hero h1{font-size:29px}
  .section-head h2{font-size:23px}
  .quote-card{padding:26px}
  .quote-card blockquote{font-size:17px}
}

/* roulang page: article */
:root{
  --bg-900:#060B14;
  --bg-800:#0A1220;
  --panel:rgba(255,255,255,.045);
  --panel-strong:rgba(255,255,255,.07);
  --brand:#2F6BFF;
  --glow:#3BE0F0;
  --silver:#C3CFE0;
  --text-1:#EAF1FA;
  --text-2:#A9B7CC;
  --text-3:#74839A;
  --accent:#FFB020;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(195,207,224,.45);
  --radius:16px;
  --radius-sm:12px;
  --metal:linear-gradient(135deg,#E9F0FA 0%,#8FA0B8 55%,#D6E0EC 100%);
  --shadow-card:0 20px 45px -25px rgba(0,0,0,.85);
  --ease:cubic-bezier(.2,.7,.3,1);
  --bs-primary:#2F6BFF;
  --bs-body-bg:#060B14;
  --bs-body-color:#EAF1FA;
  --bs-border-color:rgba(255,255,255,.08);
  --bs-border-radius:16px;
  --bs-font-sans-serif:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-900);
  color:var(--text-1);
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(560px 420px at 10% 4%, rgba(59,224,240,.10), transparent 70%),
    radial-gradient(680px 480px at 92% 14%, rgba(47,107,255,.12), transparent 70%);
  filter:blur(60px);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .25s var(--ease)}
a:hover{color:var(--glow)}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;color:var(--text-1)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input{font-family:inherit}
:focus-visible{outline:2px solid var(--glow);outline-offset:2px}
.container{width:100%;max-width:1280px;margin:0 auto;padding-left:32px;padding-right:32px}
.site-main{position:relative;z-index:1}

/* ===== 按钮 ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:12px;font-size:15px;font-weight:600;border:1px solid transparent;transition:all .28s var(--ease);text-decoration:none;cursor:pointer;white-space:nowrap}
.btn-glow{background:linear-gradient(135deg,#2F6BFF,#1B4BD8);color:#fff;box-shadow:0 0 22px -6px rgba(47,107,255,.75)}
.btn-glow:hover{color:#fff;filter:brightness(1.06);box-shadow:0 0 32px -6px rgba(47,107,255,.9);transform:translateY(-2px)}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--text-1)}
.btn-ghost:hover{border-color:var(--glow);background:rgba(59,224,240,.08);color:var(--text-1);transform:translateY(-2px)}
.btn-link-cyan{display:inline-flex;align-items:center;gap:6px;color:var(--glow);font-size:14px;font-weight:600;text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px}
.btn-link-cyan:hover{color:#7ff0fb}

/* ===== 导航 ===== */
.site-header{position:sticky;top:0;z-index:1030;background:rgba(6,11,20,.86);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav-top{height:64px;display:flex;align-items:center;gap:20px}
.brand{display:inline-flex;align-items:center;gap:12px}
.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:12px;font-size:15px;font-weight:700;letter-spacing:.06em;color:#0A1220;background:var(--metal);box-shadow:inset 0 0 0 1px rgba(255,255,255,.5),0 0 20px -8px rgba(195,207,224,.8)}
.brand-text{font-size:18px;font-weight:700;background:var(--metal);-webkit-background-clip:text;background-clip:text;color:transparent;letter-spacing:.02em}
.nav-search{flex:1;max-width:420px;margin:0 auto;display:flex;align-items:center;gap:10px;height:42px;padding:0 18px;border-radius:999px;background:var(--panel);border:1px solid var(--line);transition:all .25s var(--ease)}
.nav-search:focus-within{border-color:var(--glow);box-shadow:0 0 0 4px rgba(59,224,240,.12)}
.nav-search i{color:var(--text-3);font-size:14px}
.nav-search input{flex:1;background:transparent;border:0;color:var(--text-1);font-size:14px;outline:none}
.nav-search input::placeholder{color:var(--text-3)}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-toggle{width:44px;height:44px;border-radius:12px;background:var(--panel);border:1px solid var(--line);color:var(--text-1);display:inline-flex;align-items:center;justify-content:center;font-size:16px}
.nav-channels-wrap{border-top:1px solid var(--line);-webkit-mask-image:linear-gradient(90deg,transparent 0,#000 24px,#000 calc(100% - 24px),transparent 100%);mask-image:linear-gradient(90deg,transparent 0,#000 24px,#000 calc(100% - 24px),transparent 100%)}
.nav-channels{display:flex;align-items:center;gap:10px;height:48px;overflow-x:auto;scrollbar-width:none}
.nav-channels::-webkit-scrollbar{display:none}
.channel{flex:0 0 auto;padding:7px 16px;border-radius:999px;font-size:14px;color:var(--text-2);border:1px solid transparent;transition:all .25s var(--ease)}
.channel:hover{background:var(--panel-strong);color:var(--text-1)}
.channel.active{color:var(--glow);border-color:rgba(59,224,240,.55);background:rgba(59,224,240,.08);box-shadow:0 0 18px -8px rgba(59,224,240,.7)}
.mobile-panel{border-top:1px solid var(--line);padding:16px 0 20px}
.mobile-panel .nav-search{display:flex;max-width:none;margin:0 0 14px}

/* ===== 面包屑 ===== */
.crumb-bar{padding:26px 0 6px}
.crumbs{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-3);min-width:0}
.crumbs a{color:var(--text-3)}
.crumbs a:hover{color:var(--glow)}
.crumbs .sep{color:rgba(59,224,240,.65)}
.crumb-current{color:var(--text-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:420px}

/* ===== 文章头 ===== */
.article-head{padding:22px 0 34px}
.article-head h1{font-size:48px;line-height:1.24;letter-spacing:-.01em;max-width:960px;overflow-wrap:anywhere}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:22px}
.pill{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;font-size:13px;color:var(--glow);background:rgba(59,224,240,.10);border:1px solid rgba(59,224,240,.28)}
.meta-item{display:inline-flex;align-items:center;gap:7px;font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums}
.meta-item i{color:rgba(59,224,240,.7)}
.silver-line{height:1px;background:linear-gradient(90deg,rgba(195,207,224,.55),rgba(195,207,224,.06))}

/* ===== 正文布局 ===== */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:52px;align-items:start;padding:44px 0 0}
.article-inner{max-width:820px}
.article-body{color:var(--text-2);font-size:16px;line-height:1.9}
.article-body p{margin:0 0 1.2em}
.article-body h2{position:relative;font-size:26px;color:var(--text-1);margin:2.4em 0 .9em;padding-left:16px;scroll-margin-top:130px}
.article-body h2::before{content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:2px;background:linear-gradient(180deg,var(--glow),var(--brand))}
.article-body h3{font-size:20px;color:var(--text-1);margin:1.9em 0 .7em;scroll-margin-top:130px}
.article-body h4{font-size:17px;color:var(--text-1);margin:1.6em 0 .6em}
.article-body ul,.article-body ol{padding-left:1.4em;margin:0 0 1.2em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:.42em 0}
.article-body strong{color:var(--text-1)}
.article-body a{color:var(--glow);text-decoration:underline;text-underline-offset:3px}
.article-body blockquote{margin:1.7em 0;padding:16px 22px;border-left:2px solid var(--silver);border-radius:0 12px 12px 0;background:rgba(255,255,255,.055);color:var(--text-1)}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{max-width:100%;height:auto;margin:1.7em auto;border-radius:12px;border:1px solid var(--line)}
.article-body figure{margin:1.7em 0}
.article-body figcaption,.article-body .caption{font-size:13px;color:var(--text-3);text-align:center;margin-top:.6em}
.article-body table{width:100%;border-collapse:collapse;margin:1.7em 0;font-size:14.5px}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left}
.article-body thead th{background:rgba(255,255,255,.06);color:var(--text-1)}
.article-body tbody tr:nth-child(even){background:rgba(255,255,255,.03)}
.article-body pre{background:#050A12;border:1px solid var(--line);border-radius:12px;padding:16px 18px;overflow:auto;margin:1.6em 0}
.article-body code{font-size:14px;color:var(--glow)}
.article-body pre code{color:var(--text-1)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.2em 0}

/* ===== 侧栏 ===== */
.article-side{position:sticky;top:132px;display:grid;gap:20px}
.side-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-card);backdrop-filter:blur(14px);position:relative;overflow:hidden}
.side-card::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,rgba(233,240,250,.85),rgba(143,160,184,.15))}
.side-card h3{font-size:16px;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h3 i{color:var(--glow);font-size:14px}
.side-list li+li{margin-top:12px}
.side-list a{display:block;font-size:14px;color:var(--text-2);line-height:1.6}
.side-list a:hover{color:var(--glow)}
.side-list span{display:block;font-size:12px;color:var(--text-3);margin-top:4px}
.side-cta{font-size:14px;color:var(--text-2);margin-bottom:16px;line-height:1.7}
.side-cta .btn{width:100%;height:44px;font-size:14px}

/* ===== 相关推荐 ===== */
.related{padding:84px 0 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:26px}
.section-head h2{font-size:32px}
.section-head p{font-size:14px;color:var(--text-3);margin-top:8px}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card-item{display:flex;flex-direction:column;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-card);transition:all .28s var(--ease);position:relative;height:100%}
.card-item::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,rgba(233,240,250,.8),rgba(143,160,184,.12));z-index:2}
.card-item:hover{transform:translateY(-4px);border-color:rgba(59,224,240,.35);box-shadow:0 0 28px -6px rgba(59,224,240,.35),var(--shadow-card)}
.thumb{position:relative;width:100%;aspect-ratio:4/3;overflow:hidden;background:rgba(255,255,255,.04)}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.card-item:hover .thumb img{transform:scale(1.05)}
.card-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-meta{display:flex;align-items:center;gap:12px;font-size:12.5px;color:var(--text-3);font-variant-numeric:tabular-nums}
.card-item h3{font-size:18px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-item .excerpt{font-size:14px;color:var(--text-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-body .btn-link-cyan{margin-top:auto}

/* ===== 返回入口 / 空态 ===== */
.back-row{padding:56px 0 0;display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.empty-box{text-align:center;padding:64px 24px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);backdrop-filter:blur(10px)}
.empty-icon{width:64px;height:64px;margin:0 auto 18px;border-radius:50%;border:1px solid var(--line-strong);display:flex;align-items:center;justify-content:center;color:var(--glow);font-size:22px}
.empty-box p{color:var(--text-2);font-size:15px;margin-bottom:16px}

/* ===== CTA 条 ===== */
.cta-strip{margin-top:88px;padding:44px;border-radius:20px;border:1px solid var(--line);background:linear-gradient(135deg,rgba(47,107,255,.16),rgba(59,224,240,.06));display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;position:relative;overflow:hidden}
.cta-strip h2{font-size:28px;margin-bottom:10px}
.cta-strip p{color:var(--text-2);font-size:15px;max-width:620px}
.cta-strip .cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ===== 页脚 ===== */
.site-footer{margin-top:96px;border-top:1px solid var(--line);background:rgba(10,18,32,.65);padding:64px 0 24px;position:relative;z-index:1}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-grid h4{font-size:15px;margin-bottom:18px}
.footer-grid p{font-size:14px;color:var(--text-2);line-height:1.8;margin-top:18px;max-width:340px}
.footer-links li+li{margin-top:12px}
.footer-links a,.footer-links span{font-size:14px;color:var(--text-2)}
.footer-links a:hover{color:var(--glow)}
.footer-bottom{margin-top:44px;padding-top:20px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:var(--text-3)}

/* ===== 响应式 ===== */
@media (max-width:1199.98px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:40px}
  .article-side{position:static;grid-template-columns:repeat(2,minmax(0,1fr))}
  .article-inner{max-width:none}
}
@media (max-width:991.98px){
  .article-head h1{font-size:38px}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-strip{padding:32px}
  .cta-strip h2{font-size:24px}
}
@media (max-width:767.98px){
  .container{padding-left:20px;padding-right:20px}
  .article-head{padding:16px 0 26px}
  .article-head h1{font-size:30px}
  .crumb-current{max-width:200px}
  .article-layout{padding-top:30px}
  .article-body{font-size:15px}
  .article-body h2{font-size:22px;margin-top:2em}
  .article-body h3{font-size:18px}
  .related{padding-top:60px}
  .section-head h2{font-size:24px}
  .related-grid{grid-template-columns:minmax(0,1fr)}
  .article-side{grid-template-columns:minmax(0,1fr)}
  .cta-strip{margin-top:60px;padding:28px 22px}
  .cta-strip .cta-actions .btn{flex:1}
  .site-footer{padding-top:48px}
}
@media (max-width:575.98px){
  .brand-text{font-size:16px}
  .btn{height:44px;padding:0 20px;font-size:14px}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category1 */
:root{
  --bg-900:#060B14;
  --bg-800:#0A1220;
  --panel:rgba(255,255,255,.045);
  --panel-strong:rgba(255,255,255,.07);
  --brand:#2F6BFF;
  --glow:#3BE0F0;
  --silver:#C3CFE0;
  --text-1:#EAF1FA;
  --text-2:#A9B7CC;
  --text-3:#74839A;
  --accent:#FFB020;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --metal:linear-gradient(135deg,#E9F0FA 0%,#8FA0B8 55%,#D6E0EC 100%);
  --radius-lg:20px;
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 20px 45px -25px rgba(0,0,0,.85);
  --ease:cubic-bezier(.2,.7,.3,1);
}

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

html{scroll-behavior:smooth;scroll-padding-top:130px}

body{
  margin:0;
  background-color:var(--bg-900);
  color:var(--text-1);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  padding-bottom:64px;
}

body::before,
body::after{
  content:"";
  position:fixed;
  pointer-events:none;
  z-index:-1;
  border-radius:50%;
  filter:blur(120px);
}
body::before{
  width:560px;height:560px;top:-180px;right:-140px;
  background:radial-gradient(circle,rgba(59,224,240,.10),transparent 70%);
}
body::after{
  width:640px;height:640px;bottom:-260px;left:-200px;
  background:radial-gradient(circle,rgba(47,107,255,.10),transparent 70%);
}

img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none;transition:color .25s var(--ease)}
a:hover{color:var(--glow)}
button,input,textarea,select{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--glow);outline-offset:2px;border-radius:6px}

.container{
  width:100%;
  max-width:1280px;
  margin-inline:auto;
  padding-inline:32px;
}

/* ---------- 顶部双层导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(6,11,20,.88);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.nav-main-inner{
  display:flex;
  align-items:center;
  gap:24px;
  height:64px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:11px;
  font-size:15px;font-weight:700;letter-spacing:.06em;color:#fff;
  background:linear-gradient(135deg,rgba(47,107,255,.42),rgba(59,224,240,.20));
  border:1px solid rgba(195,207,224,.45);
  box-shadow:0 0 18px -6px rgba(59,224,240,.65);
}
.brand-text{
  font-size:17px;font-weight:700;letter-spacing:.02em;
  background:var(--metal);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
  white-space:nowrap;
}
.nav-search{position:relative;flex:1;max-width:420px}
.nav-search i{
  position:absolute;left:16px;top:50%;transform:translateY(-50%);
  color:var(--text-3);font-size:13px;
}
.nav-search input{
  width:100%;height:40px;
  padding:0 16px 0 42px;
  border-radius:999px;
  background:var(--panel);
  border:1px solid var(--line);
  color:var(--text-1);
  font-size:14px;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease);
}
.nav-search input::placeholder{color:var(--text-3)}
.nav-search input:focus{
  outline:none;
  background:var(--panel-strong);
  border-color:rgba(59,224,240,.6);
  box-shadow:0 0 0 4px rgba(59,224,240,.12);
}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;
  width:40px;height:40px;border-radius:12px;
  background:var(--panel);border:1px solid var(--line);
  color:var(--text-1);cursor:pointer;
  transition:.25s var(--ease);
}
.nav-toggle:hover{border-color:rgba(59,224,240,.5);color:var(--glow)}

.nav-channels{
  display:flex;
  align-items:center;
  gap:8px;
  height:48px;
  max-width:1280px;
  margin:0 auto;
  padding:0 32px;
  overflow-x:auto;
  scrollbar-width:none;
  border-top:1px solid rgba(255,255,255,.05);
  -webkit-overflow-scrolling:touch;
}
.nav-channels::-webkit-scrollbar{display:none}
.channel{
  flex:0 0 auto;
  padding:7px 16px;
  border-radius:999px;
  font-size:14px;
  color:var(--text-2);
  border:1px solid transparent;
  white-space:nowrap;
  transition:.25s var(--ease);
}
.channel:hover{color:var(--text-1);background:var(--panel)}
.channel.active{
  color:var(--glow);
  border-color:rgba(59,224,240,.5);
  background:rgba(59,224,240,.08);
  box-shadow:0 0 20px -8px rgba(59,224,240,.7);
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;
  border-radius:12px;
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),background .28s var(--ease),border-color .28s var(--ease),color .28s var(--ease);
  text-align:center;
}
.btn.btn-primary{
  background:linear-gradient(135deg,#2F6BFF,#1B4BD8);
  color:#fff;
  box-shadow:0 0 22px -6px rgba(47,107,255,.75);
  border-color:rgba(120,170,255,.35);
}
.btn.btn-primary:hover{
  filter:brightness(1.08);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 0 32px -6px rgba(47,107,255,.9);
}
.btn.btn-ghost{
  background:transparent;
  border:1px solid rgba(195,207,224,.45);
  color:var(--text-1);
}
.btn.btn-ghost:hover{
  border-color:rgba(59,224,240,.7);
  background:rgba(59,224,240,.08);
  color:var(--glow);
  transform:translateY(-2px);
}
.btn-sm{height:38px;padding:0 18px;font-size:14px;border-radius:10px}
.text-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;
  color:var(--glow);
  border-bottom:1px solid rgba(59,224,240,.35);
  padding-bottom:2px;
  transition:.25s var(--ease);
}
.text-link:hover{border-bottom-color:var(--glow);gap:12px}

/* ---------- 内页 Hero ---------- */
.page-hero{
  position:relative;
  padding:76px 0 68px;
  border-bottom:1px solid var(--line);
  background-image:
    linear-gradient(100deg,rgba(6,11,20,.97) 0%,rgba(6,11,20,.86) 42%,rgba(6,11,20,.46) 100%),
    url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center right;
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(195,207,224,.45),transparent);
}
.page-hero-inner{position:relative;z-index:2;max-width:760px}
.breadcrumb-nav{
  display:flex;align-items:center;gap:10px;
  font-size:13px;color:var(--text-3);
  margin-bottom:22px;
}
.breadcrumb-nav a{color:var(--text-3)}
.breadcrumb-nav a:hover{color:var(--glow)}
.breadcrumb-nav span{color:rgba(59,224,240,.6)}
.breadcrumb-nav em{font-style:normal;color:var(--text-2)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  font-size:13px;color:var(--glow);
  background:rgba(59,224,240,.10);
  border:1px solid rgba(59,224,240,.28);
  margin-bottom:20px;
}
.page-hero h1{
  font-size:clamp(30px,4.4vw,52px);
  line-height:1.22;
  font-weight:700;
  letter-spacing:-.01em;
  margin-bottom:18px;
}
.page-hero h1 .hl{
  background:var(--metal);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
}
.hero-lead{
  font-size:17px;
  color:var(--text-2);
  max-width:620px;
  margin-bottom:30px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:0;
  margin-top:44px;
  border-top:1px solid var(--line);
  padding-top:26px;
}
.hero-stats div{
  padding-right:34px;margin-right:34px;
  border-right:1px solid var(--line);
}
.hero-stats div:last-child{border-right:none;margin-right:0;padding-right:0}
.hero-stats strong{
  display:block;
  font-size:28px;font-weight:600;
  font-variant-numeric:tabular-nums;
  letter-spacing:.02em;
  color:var(--text-1);
}
.hero-stats span{font-size:13px;color:var(--text-3)}

/* ---------- 板块通用 ---------- */
.section{padding:96px 0}
.section-alt{background:var(--bg-800);border-block:1px solid var(--line)}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:44px;
}
.section-head h2{
  font-size:clamp(24px,2.8vw,34px);
  font-weight:700;
  line-height:1.3;
  margin-bottom:10px;
}
.section-head p{
  color:var(--text-2);
  font-size:15px;
  max-width:640px;
}
.section-kicker{
  font-size:13px;
  letter-spacing:.14em;
  color:var(--glow);
  text-transform:uppercase;
  margin-bottom:12px;
}

/* ---------- 卡片 ---------- */
.card-grid{
  display:grid;
  gap:24px;
}
.card-grid.two-col{grid-template-columns:repeat(2,minmax(0,1fr))}

.svc-card{
  position:relative;
  display:flex;
  flex-direction:column;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow);
  overflow:hidden;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:transform .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.svc-card::before{
  content:"";
  position:absolute;top:0;left:0;right:0;height:1px;
  background:var(--metal);
  opacity:.75;
}
.svc-card:hover{
  transform:translateY(-4px);
  border-color:rgba(59,224,240,.35);
  box-shadow:var(--shadow),0 0 28px -6px rgba(59,224,240,.35);
}
.svc-cover{
  display:block;
  aspect-ratio:16/9;
  overflow:hidden;
  background:linear-gradient(140deg,#0B1526,#0A1220);
  border-bottom:1px solid var(--line);
}
.svc-cover img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .5s var(--ease);
}
.svc-card:hover .svc-cover img{transform:scale(1.04)}
.svc-body{padding:26px 28px 28px;display:flex;flex-direction:column;gap:14px;flex:1}
.svc-meta{display:flex;align-items:center;gap:12px}
.pill{
  display:inline-flex;align-items:center;
  height:26px;padding:0 12px;
  border-radius:999px;
  font-size:12px;
  color:var(--glow);
  background:rgba(59,224,240,.10);
  border:1px solid rgba(59,224,240,.22);
  white-space:nowrap;
}
.svc-date{font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums}
.svc-card h3{
  font-size:21px;
  font-weight:700;
  line-height:1.4;
}
.svc-card h3 a:hover{color:var(--glow)}
.svc-card p{
  font-size:15px;
  color:var(--text-2);
  line-height:1.8;
}
.svc-card .text-link{margin-top:auto}

/* ---------- 流程时间轴 ---------- */
.steps{
  position:relative;
  display:grid;
  gap:18px;
  padding-left:6px;
}
.steps::before{
  content:"";
  position:absolute;
  left:29px;top:20px;bottom:20px;
  width:1px;
  background:linear-gradient(180deg,rgba(59,224,240,.55),rgba(195,207,224,.18));
}
.step{
  position:relative;
  display:flex;
  gap:24px;
  padding:22px 26px;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
  transition:.28s var(--ease);
}
.step:hover{border-color:rgba(59,224,240,.32);background:var(--panel-strong)}
.step-no{
  flex:0 0 auto;
  display:inline-flex;align-items:center;justify-content:center;
  width:48px;height:48px;
  border-radius:50%;
  font-size:14px;font-weight:600;
  font-variant-numeric:tabular-nums;
  color:var(--glow);
  border:1px solid rgba(59,224,240,.45);
  background:rgba(6,11,20,.85);
  box-shadow:0 0 20px -8px rgba(59,224,240,.7);
  position:relative;z-index:2;
}
.step h3{font-size:19px;font-weight:700;margin-bottom:8px}
.step p{font-size:15px;color:var(--text-2);line-height:1.8}
.step-tag{
  display:inline-block;
  margin-top:12px;
  font-size:13px;
  color:var(--text-3);
}

/* ---------- 要点清单 / 标签 ---------- */
.split{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:48px;
  align-items:start;
}
.check-list{display:grid;gap:16px}
.check-list li{
  display:flex;gap:14px;
  padding:18px 22px;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  font-size:15px;
  color:var(--text-2);
  line-height:1.75;
  transition:.28s var(--ease);
}
.check-list li:hover{border-color:rgba(59,224,240,.3);background:var(--panel-strong)}
.check-list i{color:var(--glow);font-size:15px;margin-top:6px}
.check-list strong{color:var(--text-1);font-weight:600}

.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.tag{
  display:inline-flex;align-items:center;
  padding:8px 16px;
  border-radius:999px;
  font-size:14px;
  color:var(--text-2);
  background:var(--panel);
  border:1px solid var(--line);
  transition:.25s var(--ease);
}
.tag:hover{color:var(--glow);border-color:rgba(59,224,240,.4);background:rgba(59,224,240,.07)}

.note-box{
  padding:26px 28px;
  border-radius:var(--radius);
  background:var(--panel);
  border:1px solid var(--line);
  border-left:2px solid rgba(195,207,224,.6);
}
.note-box h3{font-size:19px;margin-bottom:12px}
.note-box p{font-size:15px;color:var(--text-2);line-height:1.85}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto}
.accordion-item{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:14px !important;
  margin-bottom:12px;
  overflow:hidden;
  transition:.28s var(--ease);
}
.accordion-item:has(.accordion-button:not(.collapsed)){
  border-color:rgba(59,224,240,.35);
  box-shadow:inset 3px 0 0 0 var(--glow),0 0 26px -12px rgba(59,224,240,.55);
}
.accordion-button{
  background:transparent;
  color:var(--text-1);
  font-size:16px;
  font-weight:600;
  padding:20px 24px;
  box-shadow:none !important;
}
.accordion-button:not(.collapsed){color:var(--glow);background:transparent}
.accordion-button::after{
  filter:invert(82%) sepia(28%) saturate(520%) hue-rotate(140deg);
  background-size:16px;
}
.accordion-body{
  padding:0 24px 22px;
  font-size:15px;
  color:var(--text-2);
  line-height:1.85;
}

/* ---------- 相关分类 ---------- */
.related-row{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:26px;
}
.related-pill{
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 22px;
  border-radius:999px;
  font-size:15px;
  background:var(--panel);
  border:1px solid var(--line);
  color:var(--text-1);
  transition:.28s var(--ease);
}
.related-pill i{color:var(--glow);font-size:13px}
.related-pill:hover{
  border-color:rgba(59,224,240,.45);
  background:rgba(59,224,240,.08);
  color:var(--glow);
  transform:translateY(-2px);
}

/* ---------- 表单 & CTA ---------- */
.cta-panel{
  position:relative;
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:48px;
  padding:48px;
  border-radius:24px;
  background:
    linear-gradient(120deg,rgba(47,107,255,.14),rgba(59,224,240,.06) 55%,transparent),
    var(--panel-strong);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  overflow:hidden;
}
.cta-panel::before{
  content:"";
  position:absolute;top:0;left:0;right:0;height:1px;
  background:var(--metal);
}
.cta-panel h2{
  font-size:clamp(24px,2.8vw,32px);
  font-weight:700;
  line-height:1.32;
  margin-bottom:14px;
}
.cta-panel > div > p{
  color:var(--text-2);
  font-size:15px;
  margin-bottom:24px;
}
.cta-list{display:grid;gap:12px;margin-top:8px}
.cta-list li{display:flex;gap:12px;font-size:15px;color:var(--text-2)}
.cta-list i{color:var(--glow);margin-top:6px;font-size:14px}

form.customer-form{display:grid;gap:16px}
.field{display:grid;gap:8px}
.field label{font-size:13px;color:var(--text-2)}
.field .req{color:var(--accent);margin-left:4px}
.field input,
.field textarea{
  width:100%;
  height:48px;
  padding:0 16px;
  border-radius:12px;
  background:var(--panel);
  border:1px solid var(--line);
  color:var(--text-1);
  font-size:15px;
  transition:.25s var(--ease);
}
.field textarea{height:110px;padding:14px 16px;resize:vertical;line-height:1.7}
.field input::placeholder,
.field textarea::placeholder{color:var(--text-3)}
.field input:focus,
.field textarea:focus{
  outline:none;
  border-color:rgba(59,224,240,.6);
  box-shadow:0 0 0 4px rgba(59,224,240,.12);
  background:var(--panel-strong);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-hint{font-size:13px;color:var(--text-3)}
.form-hint a{color:var(--glow)}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--bg-800);
  border-top:1px solid var(--line);
  padding:72px 0 32px;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:40px;
}
.footer-grid h4{
  font-size:15px;
  font-weight:700;
  color:var(--text-1);
  margin-bottom:18px;
}
.footer-grid p{
  font-size:14px;
  color:var(--text-2);
  line-height:1.85;
  max-width:340px;
}
.footer-links{display:grid;gap:11px}
.footer-links a{
  font-size:14px;
  color:var(--text-2);
}
.footer-links a:hover{color:var(--glow)}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  margin-top:52px;
  padding-top:24px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-3);
}

/* ---------- 底部固定转化条 ---------- */
.float-cta{
  position:fixed;
  right:32px;
  bottom:24px;
  z-index:1040;
  display:flex;
  align-items:center;
  gap:14px;
  padding:10px 14px 10px 22px;
  border-radius:999px;
  background:rgba(10,18,32,.92);
  border:1px solid rgba(195,207,224,.28);
  box-shadow:var(--shadow),0 0 30px -14px rgba(59,224,240,.6);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  opacity:0;
  transform:translateY(14px);
  pointer-events:none;
  transition:opacity .32s var(--ease),transform .32s var(--ease);
}
.float-cta.show{opacity:1;transform:translateY(0);pointer-events:auto}
.float-cta .float-text{font-size:14px;color:var(--text-2);white-space:nowrap}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:50%;
  background:var(--panel);border:1px solid var(--line);
  color:var(--text-1);font-size:14px;
  transition:.25s var(--ease);
}
.icon-btn:hover{border-color:rgba(59,224,240,.5);color:var(--glow)}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{padding-inline:26px}
  .nav-channels{padding-inline:26px}
  .section{padding:80px 0}
  .cta-panel{padding:40px;gap:36px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:991px){
  .nav-search{max-width:none}
  .split{grid-template-columns:1fr;gap:34px}
  .card-grid.two-col{grid-template-columns:1fr}
  .cta-panel{grid-template-columns:1fr}
  .page-hero{padding:60px 0 54px}
  .hero-stats div{padding-right:26px;margin-right:26px}
}
@media (max-width:767px){
  body{font-size:15px;padding-bottom:72px}
  .container{padding-inline:20px}
  .nav-main-inner{gap:14px;height:60px}
  .nav-search{
    position:absolute;
    left:20px;right:20px;top:64px;
    max-width:none;
    display:none;
    z-index:20;
  }
  .nav-search.open{display:block}
  .nav-search input{background:rgba(6,11,20,.98);height:44px}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .nav-actions .btn{height:40px;padding:0 16px;font-size:14px}
  .nav-channels{padding-inline:20px;height:46px}
  .section{padding:60px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:32px}
  .svc-body{padding:22px 20px 24px}
  .step{padding:20px;gap:16px}
  .step-no{width:42px;height:42px}
  .steps::before{left:41px}
  .cta-panel{padding:28px 22px;border-radius:20px}
  .form-row{grid-template-columns:1fr}
  .hero-stats{gap:20px 0;flex-wrap:wrap}
  .hero-stats div{
    flex:1 1 45%;
    border-right:none;
    padding-right:0;
    margin-right:0;
  }
  .hero-stats strong{font-size:24px}
  .float-cta{
    right:0;left:0;bottom:0;
    border-radius:0;
    padding:10px 16px;
    justify-content:space-between;
  }
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:575px){
  .page-hero h1{font-size:30px}
  .hero-lead{font-size:16px}
  .hero-actions .btn{width:100%}
  .float-cta .float-text{font-size:13px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
  --bg-900:#060B14;
  --bg-800:#0A1220;
  --panel:rgba(255,255,255,.045);
  --panel-strong:rgba(255,255,255,.07);
  --brand:#2F6BFF;
  --brand-deep:#1B4BD8;
  --glow:#3BE0F0;
  --silver:#C3CFE0;
  --text-1:#EAF1FA;
  --text-2:#A9B7CC;
  --text-3:#74839A;
  --accent:#FFB020;
  --line:rgba(255,255,255,.08);
  --radius-lg:20px;
  --radius:16px;
  --radius-sm:12px;
  --shadow-card:0 20px 45px -25px rgba(0,0,0,.85);
  --ease:cubic-bezier(.2,.7,.3,1);
  --metal:linear-gradient(135deg,#E9F0FA 0%,#8FA0B8 55%,#D6E0EC 100%);

  --bs-primary:#2F6BFF;
  --bs-body-bg:#060B14;
  --bs-body-color:#EAF1FA;
  --bs-border-color:rgba(255,255,255,.08);
  --bs-link-color:#3BE0F0;
  --bs-link-hover-color:#7DF0FB;
  --bs-font-sans-serif:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-900);
  color:var(--text-1);
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  overflow-x:hidden;
}
body::before,body::after{
  content:"";
  position:fixed;
  width:720px;height:720px;
  border-radius:50%;
  filter:blur(120px);
  pointer-events:none;
  z-index:0;
}
body::before{background:rgba(59,224,240,.10);top:-260px;right:-180px}
body::after{background:rgba(47,107,255,.10);bottom:-320px;left:-220px}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .25s var(--ease)}
a:hover{color:var(--glow)}
button,input,textarea,select{font-family:inherit;font-size:inherit}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--glow);outline-offset:2px}
.container{
  width:100%;
  max-width:1280px;
  padding-left:32px;
  padding-right:32px;
  margin:0 auto;
  position:relative;
  z-index:1;
}
.section{padding:96px 0}
.section-sm{padding:64px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.section-head h2{font-size:32px}
.section-head p{color:var(--text-2);font-size:15px;margin-top:10px;max-width:640px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.14em;color:var(--glow);
  text-transform:uppercase;margin-bottom:14px;font-weight:600;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--metal)}
.lead{color:var(--text-2);font-size:17px}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(6,11,20,.82);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.nav-top{
  height:64px;
  display:flex;align-items:center;gap:24px;
}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:11px;
  display:grid;place-items:center;
  font-weight:800;font-size:15px;letter-spacing:.04em;
  color:#061019;
  background:var(--metal);
  box-shadow:0 0 22px -8px rgba(195,207,224,.7);
}
.brand-text{
  font-size:18px;font-weight:700;letter-spacing:.02em;
  background:var(--metal);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;
}
.nav-search{
  flex:1;max-width:420px;position:relative;
}
.nav-search input{
  width:100%;height:40px;border-radius:999px;
  background:var(--panel);
  border:1px solid var(--line);
  color:var(--text-1);
  padding:0 18px 0 42px;
  font-size:14px;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.nav-search input::placeholder{color:var(--text-3)}
.nav-search input:focus{
  outline:none;border-color:rgba(59,224,240,.6);
  box-shadow:0 0 0 4px rgba(59,224,240,.12);
}
.nav-search i{
  position:absolute;left:16px;top:50%;transform:translateY(-50%);
  color:var(--text-3);font-size:14px;
}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:14px}
.nav-toggle{
  display:none;background:var(--panel);border:1px solid var(--line);
  color:var(--text-1);width:40px;height:40px;border-radius:11px;
}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--radius-sm);
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  color:#fff;font-weight:600;font-size:15px;border:none;
  box-shadow:0 0 22px -6px rgba(47,107,255,.75);
  transition:box-shadow .3s var(--ease),filter .3s var(--ease),transform .3s var(--ease);
  white-space:nowrap;
}
.btn-main:hover{color:#fff;filter:brightness(1.06);box-shadow:0 0 32px -6px rgba(47,107,255,.9);transform:translateY(-1px)}
.btn-main.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-sm);
  background:transparent;border:1px solid rgba(195,207,224,.45);
  color:var(--text-1);font-weight:600;font-size:15px;
  transition:border-color .28s var(--ease),background .28s var(--ease),color .28s var(--ease);
  white-space:nowrap;
}
.btn-ghost:hover{border-color:var(--glow);background:rgba(59,224,240,.08);color:var(--text-1)}
.link-cyan{
  color:var(--glow);font-size:14px;font-weight:600;
  text-decoration:underline;text-underline-offset:5px;
  text-decoration-color:rgba(59,224,240,.4);
}
.link-cyan:hover{text-decoration-color:var(--glow)}
.nav-channels{
  display:flex;align-items:center;gap:10px;
  height:48px;overflow-x:auto;scrollbar-width:none;
  -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 18px,#000 calc(100% - 18px),transparent 100%);
  mask-image:linear-gradient(90deg,transparent 0,#000 18px,#000 calc(100% - 18px),transparent 100%);
  border-top:1px solid rgba(255,255,255,.05);
}
.nav-channels::-webkit-scrollbar{display:none}
.channel{
  flex:0 0 auto;
  display:inline-flex;align-items:center;
  height:32px;padding:0 16px;border-radius:999px;
  font-size:14px;color:var(--text-2);
  border:1px solid transparent;
  transition:background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
}
.channel:hover{background:rgba(255,255,255,.05);color:var(--text-1)}
.channel.active{
  color:var(--glow);
  border-color:rgba(59,224,240,.5);
  background:rgba(59,224,240,.10);
}
.mobile-menu{
  display:none;
  border-top:1px solid var(--line);
  background:rgba(10,18,32,.98);
  padding:12px 0 18px;
}
.mobile-menu.open{display:block}
.mobile-menu a{
  display:block;padding:12px 4px;font-size:15px;color:var(--text-2);
  border-bottom:1px solid rgba(255,255,255,.05);
}
.mobile-menu a.active{color:var(--glow)}

/* ============ Hero ============ */
.hero{padding:72px 0 84px;position:relative}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center}
.hero h1{font-size:50px;line-height:1.22;max-width:620px}
.hero h1 .hl{
  background:linear-gradient(135deg,#3BE0F0,#2F6BFF);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;
}
.hero .lead{margin-top:22px;max-width:600px;font-size:17px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-metrics{
  display:grid;grid-template-columns:repeat(4,1fr);
  margin-top:48px;border-top:1px solid var(--line);padding-top:26px;gap:12px;
}
.metric{position:relative;padding-right:16px}
.metric+.metric{border-left:1px solid var(--line);padding-left:20px}
.metric b{
  display:block;font-size:28px;font-weight:600;
  font-variant-numeric:tabular-nums;letter-spacing:.02em;
  background:var(--metal);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.metric span{font-size:13px;color:var(--text-3)}
.hero-media{position:relative;border-radius:var(--radius-lg);overflow:hidden;border:1px solid rgba(195,207,224,.28);box-shadow:0 0 45px -14px rgba(59,224,240,.35)}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(315deg,rgba(6,11,20,.86) 4%,rgba(6,11,20,.15) 58%,rgba(6,11,20,0) 100%);
}
.hero-badge{
  position:absolute;left:22px;bottom:22px;z-index:2;
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:999px;
  background:rgba(6,11,20,.72);border:1px solid rgba(59,224,240,.35);
  font-size:13px;color:var(--text-1);backdrop-filter:blur(8px);
}

/* ============ 票券信息条 ============ */
.ticket-strip{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--panel);border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;
}
.ticket{
  padding:24px 26px;position:relative;
  border-right:1px dashed rgba(255,255,255,.14);
}
.ticket:last-child{border-right:none}
.ticket i{color:var(--glow);font-size:18px;margin-bottom:12px;display:block}
.ticket strong{display:block;font-size:15px;margin-bottom:6px}
.ticket span{font-size:13.5px;color:var(--text-2);line-height:1.7}

/* ============ 卡片 ============ */
.glass-card{
  position:relative;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-card),0 1px 0 rgba(255,255,255,.06) inset;
  backdrop-filter:blur(14px);
  transition:transform .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
  overflow:hidden;
}
.glass-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:var(--metal);opacity:.55;
}
.glass-card:hover{
  transform:translateY(-4px);
  border-color:rgba(59,224,240,.35);
  box-shadow:var(--shadow-card),0 0 28px -6px rgba(59,224,240,.35);
}
.card-body{padding:24px 26px 28px}
.card-media{position:relative;overflow:hidden}
.card-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .5s var(--ease)}
.glass-card:hover .card-media img{transform:scale(1.04)}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:999px;font-size:12.5px;
  background:rgba(59,224,240,.10);color:var(--glow);
  border:1px solid rgba(59,224,240,.22);
}
.tag.silver{background:rgba(195,207,224,.10);color:var(--silver);border-color:rgba(195,207,224,.22)}
.card-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--text-3);margin-bottom:14px}
.card-title{font-size:20px;margin-bottom:10px;line-height:1.45}
.card-title a:hover{color:var(--glow)}
.card-desc{font-size:14.5px;color:var(--text-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{margin-top:18px;display:flex;align-items:center;justify-content:space-between;font-size:13.5px;color:var(--text-3)}

/* 目录卡网格 */
.catalog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}

/* 参数速查表 */
.spec-wrap{
  background:var(--panel);border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;
}
.spec-table{width:100%;border-collapse:collapse;font-size:14.5px}
.spec-table thead th{
  text-align:left;padding:18px 22px;font-size:13px;letter-spacing:.06em;
  color:var(--text-3);font-weight:600;background:rgba(255,255,255,.03);
  border-bottom:1px solid var(--line);white-space:nowrap;
}
.spec-table tbody td{padding:18px 22px;border-bottom:1px solid rgba(255,255,255,.05);color:var(--text-2)}
.spec-table tbody tr:nth-child(odd){background:rgba(255,255,255,.03)}
.spec-table tbody tr:hover{background:rgba(59,224,240,.06)}
.spec-table tbody td:first-child{color:var(--text-1);font-weight:600}
.spec-table .num{font-variant-numeric:tabular-nums;color:var(--text-1)}

/* 步骤时间轴 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.step{
  position:relative;padding:26px 24px;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  transition:border-color .28s var(--ease),transform .28s var(--ease);
}
.step:hover{border-color:rgba(59,224,240,.35);transform:translateY(-4px)}
.step-num{
  width:44px;height:44px;border-radius:50%;
  display:grid;place-items:center;margin-bottom:18px;
  border:1px solid rgba(59,224,240,.5);color:var(--glow);
  font-size:15px;font-weight:600;font-variant-numeric:tabular-nums;
  box-shadow:0 0 20px -6px rgba(59,224,240,.6);
}
.step h3{font-size:18px;margin-bottom:10px}
.step p{font-size:14.5px;color:var(--text-2)}

/* 要点清单 */
.points{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.point{
  display:flex;gap:14px;padding:20px 22px;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-sm);
}
.point i{color:var(--glow);font-size:16px;margin-top:4px}
.point strong{display:block;font-size:15.5px;margin-bottom:6px}
.point span{font-size:14px;color:var(--text-2)}

/* FAQ */
.faq-list{display:grid;gap:12px}
.faq-item{
  background:var(--panel);border:1px solid var(--line);border-radius:14px;
  overflow:hidden;transition:border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.faq-item.open{border-color:rgba(59,224,240,.4);box-shadow:0 0 26px -10px rgba(59,224,240,.5)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:transparent;border:none;color:var(--text-1);
  padding:20px 24px;font-size:16px;font-weight:600;text-align:left;cursor:pointer;
}
.faq-q i{color:var(--glow);font-size:14px;transition:transform .28s var(--ease);flex-shrink:0}
.faq-item.open .faq-q i{transform:rotate(45deg)}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .35s var(--ease);
  padding:0 24px;
}
.faq-item.open .faq-a{padding-bottom:22px}
.faq-a p{font-size:14.5px;color:var(--text-2);line-height:1.8;border-left:3px solid rgba(59,224,240,.5);padding-left:16px}

/* 相关分类 pill */
.rel-pills{display:flex;flex-wrap:wrap;gap:12px}
.rel-pill{
  display:inline-flex;align-items:center;gap:10px;
  padding:12px 20px;border-radius:999px;
  background:var(--panel);border:1px solid var(--line);
  font-size:14.5px;color:var(--text-2);
  transition:all .28s var(--ease);
}
.rel-pill:hover{border-color:rgba(59,224,240,.45);color:var(--text-1);background:var(--panel-strong)}
.rel-pill i{color:var(--glow);font-size:13px}

/* CTA 表单 */
.cta-panel{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid rgba(195,207,224,.22);
  background:linear-gradient(140deg,rgba(10,18,32,.96),rgba(6,11,20,.96));
}
.cta-panel::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 82% 12%,rgba(59,224,240,.16),transparent 58%);
}
.cta-inner{position:relative;padding:56px;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.cta-inner h2{font-size:34px;margin-bottom:16px}
.cta-inner p{color:var(--text-2);font-size:15.5px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-field{display:flex;flex-direction:column;gap:8px}
.form-field.full{grid-column:1/-1}
.form-field label{font-size:13px;color:var(--text-2)}
.form-field label .req{color:var(--accent)}
.form-field input,.form-field textarea{
  width:100%;height:48px;border-radius:var(--radius-sm);
  background:var(--panel);border:1px solid rgba(195,207,224,.28);
  color:var(--text-1);padding:0 16px;font-size:14.5px;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.form-field textarea{height:96px;padding:12px 16px;resize:vertical;line-height:1.7}
.form-field input::placeholder,.form-field textarea::placeholder{color:var(--text-3)}
.form-field input:focus,.form-field textarea:focus{
  outline:none;border-color:var(--glow);box-shadow:0 0 0 4px rgba(59,224,240,.14);
}
.form-tip{font-size:13px;color:var(--text-3);grid-column:1/-1}

/* 页脚 */
.site-footer{
  position:relative;z-index:1;
  border-top:1px solid var(--line);
  background:rgba(10,18,32,.7);
  padding:72px 0 32px;
  margin-bottom:60px;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.footer-grid h4{font-size:15px;margin-bottom:20px;color:var(--text-1)}
.footer-grid p{font-size:14px;color:var(--text-2);max-width:320px}
.footer-links li{margin-bottom:12px}
.footer-links a,.footer-links span{font-size:14px;color:var(--text-2)}
.footer-links a:hover{color:var(--glow)}
.footer-bottom{
  margin-top:48px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}

/* 底部固定转化条 */
.sticky-cta{
  position:fixed;right:24px;bottom:24px;z-index:1040;
  display:flex;align-items:center;gap:14px;
  padding:12px 16px 12px 22px;border-radius:999px;
  background:rgba(10,18,32,.94);
  border:1px solid rgba(59,224,240,.35);
  box-shadow:0 20px 45px -22px rgba(0,0,0,.95),0 0 26px -10px rgba(59,224,240,.5);
  backdrop-filter:blur(14px);
  opacity:0;transform:translateY(18px);pointer-events:none;
  transition:opacity .35s var(--ease),transform .35s var(--ease);
}
.sticky-cta.show{opacity:1;transform:translateY(0);pointer-events:auto}
.sticky-cta span.txt{font-size:13.5px;color:var(--text-2)}
.sticky-cta .icon-btn{
  width:38px;height:38px;border-radius:50%;
  display:grid;place-items:center;
  background:var(--panel);border:1px solid var(--line);
  color:var(--text-1);font-size:14px;
}
.sticky-cta .icon-btn:hover{border-color:var(--glow);color:var(--glow)}

/* 响应式 */
@media (max-width:1199px){
  .hero h1{font-size:42px}
  .hero-metrics{grid-template-columns:repeat(2,1fr);row-gap:22px}
  .metric:nth-child(3){border-left:none;padding-left:0}
  .catalog-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .ticket-strip{grid-template-columns:repeat(2,1fr)}
  .ticket:nth-child(2){border-right:none}
  .ticket:nth-child(1),.ticket:nth-child(2){border-bottom:1px dashed rgba(255,255,255,.14)}
}
@media (max-width:991px){
  .nav-search{display:none}
  .nav-toggle{display:grid;place-items:center}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero{padding:56px 0 64px}
  .hero-media{order:-1}
  .cta-inner{grid-template-columns:1fr;padding:40px 32px;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .section{padding:72px 0}
}
@media (max-width:767px){
  .container{padding-left:20px;padding-right:20px}
  .hero h1{font-size:32px}
  .hero .lead{font-size:15.5px}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:28px}
  .section-head h2{font-size:26px}
  .catalog-grid,.points,.skills,.spec-table-stack{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .ticket-strip{grid-template-columns:1fr}
  .ticket{border-right:none;border-bottom:1px dashed rgba(255,255,255,.14)}
  .ticket:last-child{border-bottom:none}
  .points{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .sticky-cta{
    left:0;right:0;bottom:0;border-radius:0;
    padding:10px 16px;justify-content:space-between;
    opacity:1;transform:none;pointer-events:auto;
  }
  .site-footer{margin-bottom:64px}
  .spec-table{font-size:13.5px}
  .spec-table thead th,.spec-table tbody td{padding:14px 14px}
}
@media (max-width:520px){
  .hero h1{font-size:28px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%}
  .hero-metrics{grid-template-columns:1fr;gap:18px}
  .metric+.metric{border-left:none;padding-left:0;border-top:1px solid var(--line);padding-top:16px}
  .brand-text{font-size:16px}
  .cta-inner{padding:32px 22px}
}
.section-anchor{scroll-margin-top:130px}

/* roulang page: category3 */
:root{
  --bg-900:#060B14;
  --bg-800:#0A1220;
  --panel:rgba(255,255,255,.045);
  --panel-strong:rgba(255,255,255,.07);
  --brand:#2F6BFF;
  --brand-deep:#1B4BD8;
  --glow:#3BE0F0;
  --silver:#C3CFE0;
  --text-1:#EAF1FA;
  --text-2:#A9B7CC;
  --text-3:#74839A;
  --accent:#FFB020;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --metal:linear-gradient(135deg,#E9F0FA 0%,#8FA0B8 55%,#D6E0EC 100%);
  --radius-xl:20px;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-pill:999px;
  --shadow-card:0 20px 45px -25px rgba(0,0,0,.85);
  --ease:cubic-bezier(.2,.7,.3,1);
  --bs-body-bg:var(--bg-900);
  --bs-body-color:var(--text-1);
  --bs-border-color:rgba(255,255,255,.08);
  --bs-primary:#2F6BFF;
  --bs-link-color:var(--glow);
  --bs-link-hover-color:#8FF2FA;
  --bs-font-sans-serif:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-900);
  color:var(--text-1);
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  padding-bottom:84px;
  position:relative;
}
body::before,body::after{
  content:"";
  position:fixed;
  width:760px;height:760px;
  border-radius:50%;
  filter:blur(120px);
  opacity:.10;
  pointer-events:none;
  z-index:0;
}
body::before{background:radial-gradient(circle,#3BE0F0 0%,transparent 70%);top:-320px;right:-220px}
body::after{background:radial-gradient(circle,#2F6BFF 0%,transparent 70%);bottom:-360px;left:-260px;opacity:.09}
img{max-width:100%;display:block}
a{color:var(--glow);text-decoration:none;transition:color .24s var(--ease)}
a:hover{color:#8FF2FA}
ul{list-style:none;margin:0;padding:0}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:.01em}
p{margin:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--glow);outline-offset:2px;border-radius:6px}
.container{max-width:1280px;padding-left:32px;padding-right:32px;position:relative;z-index:2}
.narrow{max-width:820px}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(6,11,20,.86);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.nav-top{
  display:flex;align-items:center;gap:24px;
  height:64px;
}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:11px;
  display:inline-flex;align-items:center;justify-content:center;
  font-weight:700;font-size:15px;letter-spacing:.04em;
  color:#08111f;
  background:var(--metal);
  box-shadow:0 0 18px -6px rgba(59,224,240,.55),inset 0 1px 0 rgba(255,255,255,.7);
}
.brand-text{
  font-size:17px;font-weight:700;letter-spacing:.02em;
  background:var(--metal);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;
  white-space:nowrap;
}
.nav-search{
  flex:1;max-width:420px;position:relative;
}
.nav-search i{
  position:absolute;left:16px;top:50%;transform:translateY(-50%);
  color:var(--text-3);font-size:14px;
}
.nav-search input{
  width:100%;height:40px;border-radius:var(--radius-pill);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  color:var(--text-1);
  padding:0 18px 0 42px;
  font-size:14px;
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.nav-search input::placeholder{color:var(--text-3)}
.nav-search input:focus{
  outline:none;border-color:rgba(59,224,240,.6);
  box-shadow:0 0 0 4px rgba(59,224,240,.12);
}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.btn-primary-solid{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border:none;border-radius:var(--radius-md);
  font-size:15px;font-weight:600;color:#fff;
  background:linear-gradient(135deg,#2F6BFF,#1B4BD8);
  box-shadow:0 0 22px -6px rgba(47,107,255,.75);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),filter .28s var(--ease);
  cursor:pointer;white-space:nowrap;
}
.btn-primary-solid:hover{color:#fff;filter:brightness(1.06);box-shadow:0 0 32px -6px rgba(47,107,255,.9);transform:translateY(-1px)}
.btn-primary-solid:active{transform:translateY(0)}
.btn-primary-solid.sm{height:40px;padding:0 20px;font-size:14px}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-md);
  background:transparent;border:1px solid var(--silver);
  color:var(--text-1);font-size:15px;font-weight:600;
  transition:border-color .28s var(--ease),background .28s var(--ease),color .28s var(--ease);
}
.btn-ghost:hover{border-color:var(--glow);background:rgba(59,224,240,.08);color:var(--text-1)}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--glow);font-size:14px;font-weight:600;
  border-bottom:1px solid rgba(59,224,240,.4);
  padding-bottom:2px;
}
.btn-text:hover{border-bottom-color:var(--glow)}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:var(--radius-md);
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  color:var(--text-1);align-items:center;justify-content:center;
}
.nav-channels{
  display:flex;align-items:center;gap:8px;
  height:48px;overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
  border-top:1px solid rgba(255,255,255,.05);
}
.nav-channels::-webkit-scrollbar{display:none}
.channel{
  flex:0 0 auto;
  display:inline-flex;align-items:center;
  height:32px;padding:0 16px;border-radius:var(--radius-pill);
  font-size:14px;color:var(--text-2);
  border:1px solid transparent;
  transition:all .24s var(--ease);
  white-space:nowrap;
}
.channel:hover{color:var(--text-1);background:rgba(255,255,255,.05)}
.channel.active{
  color:var(--glow);
  border-color:rgba(59,224,240,.5);
  background:rgba(59,224,240,.08);
  box-shadow:0 0 18px -8px rgba(59,224,240,.6);
}

/* ============ 面包屑 ============ */
.crumbs{
  padding:26px 0 0;
  font-size:13px;color:var(--text-3);
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
}
.crumbs a{color:var(--text-3)}
.crumbs a:hover{color:var(--glow)}
.crumbs span.sep{color:rgba(59,224,240,.6)}
.crumbs .now{color:var(--text-2)}

/* ============ 内页 Hero ============ */
.page-hero{padding:38px 0 72px;position:relative}
.hero-grid{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,520px);
  gap:56px;align-items:center;
}
.hero-kicker{
  display:inline-flex;align-items:center;gap:8px;
  height:28px;padding:0 14px;border-radius:var(--radius-pill);
  font-size:13px;color:var(--glow);
  background:rgba(59,224,240,.10);
  border:1px solid rgba(59,224,240,.24);
  margin-bottom:20px;
}
.page-hero h1{
  font-size:50px;line-height:1.22;font-weight:700;
  margin-bottom:18px;
}
.page-hero h1 .hl{
  background:linear-gradient(135deg,#8FF2FA,#3BE0F0 45%,#2F6BFF);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;
}
.hero-sub{font-size:17px;color:var(--text-2);max-width:560px;margin-bottom:28px}
.hero-meta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px}
.meta-chip{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--text-2);
  padding:8px 14px;border-radius:var(--radius-md);
  background:var(--panel);border:1px solid var(--line);
}
.meta-chip i{color:var(--glow);font-size:12px}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px}
.hero-media{
  position:relative;border-radius:var(--radius-xl);overflow:hidden;
  aspect-ratio:16/10;
  border:1px solid rgba(195,207,224,.35);
  box-shadow:0 0 60px -22px rgba(59,224,240,.55),var(--shadow-card);
}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(200deg,rgba(6,11,20,.05) 30%,rgba(6,11,20,.88) 100%);
}
.hero-media .media-tag{
  position:absolute;left:20px;bottom:20px;z-index:2;
  display:inline-flex;align-items:center;gap:8px;
  height:30px;padding:0 14px;border-radius:var(--radius-pill);
  background:rgba(6,11,20,.65);border:1px solid rgba(195,207,224,.3);
  font-size:13px;color:var(--text-1);backdrop-filter:blur(8px);
}

/* ============ 数据条 ============ */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--panel);
  border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  position:relative;
}
.stat-strip::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:var(--metal);opacity:.6;
}
.stat-item{
  padding:28px 24px;text-align:left;
  border-right:1px solid rgba(255,255,255,.06);
}
.stat-item:last-child{border-right:none}
.stat-num{
  font-size:34px;font-weight:600;letter-spacing:.02em;
  font-variant-numeric:tabular-nums;
  background:var(--metal);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;
  display:block;line-height:1.2;
}
.stat-num .unit{font-size:15px;margin-left:4px;letter-spacing:0}
.stat-label{font-size:13px;color:var(--text-2);margin-top:6px}

/* ============ 通用板块 ============ */
.section{padding:96px 0;position:relative}
.section.alt{background:var(--bg-800);border-top:1px solid rgba(255,255,255,.04);border-bottom:1px solid rgba(255,255,255,.04)}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:44px;
}
.section-head h2{font-size:34px;margin-bottom:12px}
.section-head p{color:var(--text-2);font-size:15.5px;max-width:640px}
.section-head .head-right{flex-shrink:0}

/* ============ 案例横条列表 ============ */
.case-list{display:flex;flex-direction:column;gap:24px}
.case-row{
  display:grid;grid-template-columns:340px minmax(0,1fr);
  gap:32px;align-items:stretch;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:24px;
  position:relative;
  overflow:hidden;
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.case-row::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:var(--metal);opacity:.45;
}
.case-row:hover{
  transform:translateY(-4px);
  border-color:rgba(59,224,240,.35);
  box-shadow:0 0 28px -6px rgba(59,224,240,.35),var(--shadow-card);
}
.case-thumb{
  border-radius:var(--radius-md);overflow:hidden;
  aspect-ratio:4/3;background:rgba(255,255,255,.04);
  border:1px solid rgba(195,207,224,.18);
}
.case-thumb img{width:100%;height:100%;object-fit:cover}
.case-body{display:flex;flex-direction:column;min-width:0}
.case-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:14px}
.pill{
  display:inline-flex;align-items:center;
  height:26px;padding:0 12px;border-radius:var(--radius-pill);
  font-size:12.5px;color:var(--glow);
  background:rgba(59,224,240,.10);
  border:1px solid rgba(59,224,240,.2);
}
.case-date{font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums}
.case-body h3{font-size:21px;margin-bottom:12px}
.case-body h3 a{color:var(--text-1)}
.case-body h3 a:hover{color:var(--glow)}
.case-desc{color:var(--text-2);font-size:15px;margin-bottom:18px}
.case-facts{
  display:flex;flex-wrap:wrap;gap:10px 26px;
  padding-top:16px;margin-top:auto;
  border-top:1px solid rgba(255,255,255,.07);
}
.fact{font-size:13.5px;color:var(--text-3)}
.fact b{
  color:var(--text-1);font-weight:600;
  font-variant-numeric:tabular-nums;letter-spacing:.02em;
  margin-left:6px;
}
.case-more{margin-top:16px}

/* ============ 落地要点清单 ============ */
.point-grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;
}
.point-card{
  background:var(--panel);border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:26px;
  display:flex;gap:18px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.05);
  transition:border-color .28s var(--ease),background .28s var(--ease);
}
.point-card:hover{border-color:rgba(59,224,240,.3);background:var(--panel-strong)}
.point-no{
  flex:0 0 auto;width:44px;height:44px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:600;letter-spacing:.02em;
  color:var(--glow);
  border:1px solid rgba(59,224,240,.4);
  box-shadow:0 0 20px -10px rgba(59,224,240,.9);
  font-variant-numeric:tabular-nums;
}
.point-card h3{font-size:19px;margin-bottom:8px}
.point-card p{color:var(--text-2);font-size:14.8px}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px}
.accordion-item{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:14px !important;
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.accordion-item:last-child{margin-bottom:0}
.accordion-item:has(.accordion-button:not(.collapsed)){
  border-left:3px solid var(--glow);
  box-shadow:0 0 24px -14px rgba(59,224,240,.9);
}
.accordion-button{
  background:transparent;color:var(--text-1);
  font-size:16.5px;font-weight:600;
  padding:20px 22px;box-shadow:none;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.accordion-button:not(.collapsed){background:transparent;color:var(--text-1);box-shadow:none}
.accordion-button::after{display:none}
.accordion-button .faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(59,224,240,.35);
  color:var(--glow);font-size:12px;
  transition:transform .28s var(--ease);
}
.accordion-button:not(.collapsed) .faq-icon{transform:rotate(45deg)}
.accordion-button:focus{box-shadow:none;outline:none;border-color:transparent}
.accordion-button:focus-visible{outline:2px solid var(--glow);outline-offset:-4px}
.accordion-body{
  padding:0 22px 22px;color:var(--text-2);font-size:15px;line-height:1.8;
}

/* ============ 相关分类 pill ============ */
.related-pills{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.related-pill{
  display:inline-flex;align-items:center;gap:10px;
  height:46px;padding:0 22px;border-radius:var(--radius-pill);
  background:var(--panel);border:1px solid var(--line);
  color:var(--text-1);font-size:14.5px;font-weight:600;
  transition:all .28s var(--ease);
}
.related-pill i{color:var(--glow);font-size:12px}
.related-pill:hover{
  border-color:rgba(59,224,240,.45);
  background:rgba(59,224,240,.07);
  color:var(--text-1);transform:translateY(-2px);
}

/* ============ CTA + 表单 ============ */
.cta-band{
  background:var(--bg-800);
  border-top:1px solid rgba(255,255,255,.05);
  border-bottom:1px solid rgba(255,255,255,.05);
  padding:84px 0;
  position:relative;
  overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;width:620px;height:620px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,107,255,.28),transparent 70%);
  filter:blur(110px);top:-260px;right:-160px;pointer-events:none;
}
.cta-inner{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,480px);
  gap:56px;align-items:start;position:relative;z-index:2;
}
.cta-inner h2{font-size:32px;margin-bottom:16px}
.cta-inner .lead{color:var(--text-2);font-size:15.5px;margin-bottom:26px;max-width:520px}
.cta-points{display:flex;flex-direction:column;gap:14px}
.cta-points li{display:flex;gap:12px;align-items:flex-start;color:var(--text-2);font-size:15px}
.cta-points i{color:var(--glow);margin-top:5px;font-size:13px}
.form-card{
  background:rgba(255,255,255,.055);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:30px;
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.07);
  position:relative;
}
.form-card::before{
  content:"";position:absolute;top:0;left:24px;right:24px;height:1px;
  background:var(--metal);opacity:.55;
}
.form-card h3{font-size:20px;margin-bottom:8px}
.form-card .form-note{font-size:13.5px;color:var(--text-3);margin-bottom:22px}
.field{margin-bottom:16px}
.field label{
  display:block;font-size:13px;color:var(--text-2);margin-bottom:7px;
}
.field label .req{color:var(--accent);margin-left:2px}
.field input,.field select,.field textarea{
  width:100%;background:var(--panel);
  border:1px solid rgba(195,207,224,.22);
  border-radius:var(--radius-md);
  color:var(--text-1);font-size:14.5px;
  padding:0 16px;height:48px;
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.field textarea{height:auto;min-height:92px;padding:13px 16px;line-height:1.7;resize:vertical}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,#74839A 50%),linear-gradient(135deg,#74839A 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:rgba(59,224,240,.7);
  box-shadow:0 0 0 4px rgba(59,224,240,.12);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-card .btn-primary-solid{width:100%;margin-top:8px}
.form-tip{font-size:12.5px;color:var(--text-3);margin-top:14px;text-align:center}

/* ============ 页脚 ============ */
.site-footer{
  background:rgba(6,11,20,.95);
  border-top:1px solid var(--line);
  padding:72px 0 0;
  position:relative;z-index:2;
}
.footer-grid{
  display:grid;grid-template-columns:minmax(0,1.4fr) repeat(3,minmax(0,1fr));
  gap:44px;
}
.site-footer .brand{margin-bottom:18px}
.site-footer p{color:var(--text-2);font-size:14.5px;max-width:340px}
.site-footer h4{font-size:15px;margin-bottom:18px;color:var(--text-1)}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a,.footer-links span{font-size:14px;color:var(--text-2)}
.footer-links a:hover{color:var(--glow)}
.footer-bottom{
  margin-top:56px;
  border-top:1px solid var(--line);
  padding:22px 0 28px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}

/* ============ 底部固定转化条 ============ */
.sticky-cta{
  position:fixed;right:28px;bottom:24px;z-index:1040;
  display:inline-flex;align-items:center;gap:14px;
  padding:10px 12px 10px 20px;
  border-radius:var(--radius-pill);
  background:rgba(10,18,32,.92);
  border:1px solid rgba(195,207,224,.28);
  backdrop-filter:blur(14px);
  box-shadow:0 0 34px -14px rgba(59,224,240,.7),0 18px 40px -22px rgba(0,0,0,.95);
  opacity:0;transform:translateY(16px);
  pointer-events:none;
  transition:opacity .35s var(--ease),transform .35s var(--ease);
}
.sticky-cta.show{opacity:1;transform:translateY(0);pointer-events:auto}
.sticky-cta__text{font-size:13.5px;color:var(--text-2);white-space:nowrap}
.icon-btn{
  width:40px;height:40px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.06);border:1px solid var(--line);
  color:var(--text-1);
}
.icon-btn:hover{border-color:var(--glow);color:var(--glow)}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .page-hero h1{font-size:42px}
  .hero-grid{gap:40px}
  .case-row{grid-template-columns:280px minmax(0,1fr);gap:26px}
  .cta-inner{gap:40px}
}
@media (max-width:991.98px){
  .hero-grid{grid-template-columns:1fr}
  .page-hero{padding:30px 0 56px}
  .page-hero h1{font-size:36px}
  .hero-media{max-width:620px}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .stat-item:nth-child(2){border-right:none}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-bottom:1px solid rgba(255,255,255,.06)}
  .case-row{grid-template-columns:1fr}
  .case-thumb{max-width:100%}
  .point-grid{grid-template-columns:1fr}
  .cta-inner{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:36px}
  .section{padding:76px 0}
  .section-head h2{font-size:28px}
}
@media (max-width:767.98px){
  body{font-size:15px;padding-bottom:96px}
  .container{padding-left:20px;padding-right:20px}
  .nav-search{display:none}
  .nav-actions .btn-primary-solid{display:none}
  .nav-toggle{display:inline-flex}
  .nav-top{height:60px;gap:14px}
  .page-hero h1{font-size:30px}
  .hero-sub{font-size:15.5px}
  .section{padding:56px 0}
  .section-head{flex-direction:column;align-items:flex-start;margin-bottom:30px}
  .section-head h2{font-size:24px}
  .stat-item{padding:22px 18px}
  .stat-num{font-size:28px}
  .case-body h3{font-size:19px}
  .case-facts{gap:10px 18px}
  .form-row{grid-template-columns:1fr}
  .form-card{padding:24px 20px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .sticky-cta{
    left:0;right:0;bottom:0;border-radius:0;
    padding:10px 16px;justify-content:space-between;
    border-left:none;border-right:none;border-bottom:none;
  }
  .sticky-cta__text{display:none}
  .sticky-cta .btn-primary-solid.sm{flex:1;justify-content:center}
}
@media (max-width:575.98px){
  .page-hero h1{font-size:27px}
  .hero-btns .btn-primary-solid,.hero-btns .btn-ghost{width:100%}
  .cta-band{padding:60px 0}
  .cta-inner h2{font-size:24px}
  .footer-bottom{flex-direction:column;gap:8px}
}

/* roulang page: category4 */
:root{
  --bg-900:#060B14;
  --bg-800:#0A1220;
  --panel:rgba(255,255,255,.045);
  --panel-strong:rgba(255,255,255,.07);
  --brand:#2F6BFF;
  --glow:#3BE0F0;
  --silver:#C3CFE0;
  --text-1:#EAF1FA;
  --text-2:#A9B7CC;
  --text-3:#74839A;
  --accent:#FFB020;
  --line:rgba(255,255,255,.08);
  --line-silver:rgba(195,207,224,.35);
  --metal:linear-gradient(135deg,#E9F0FA 0%,#8FA0B8 55%,#D6E0EC 100%);
  --radius-lg:20px;
  --radius:16px;
  --radius-sm:12px;
  --shadow-card:0 20px 45px -25px rgba(0,0,0,.85);
  --ease:cubic-bezier(.2,.7,.3,1);

  --bs-body-bg:var(--bg-900);
  --bs-body-color:var(--text-1);
  --bs-border-color:var(--line);
  --bs-primary:var(--brand);
  --bs-link-color:var(--glow);
  --bs-link-hover-color:#8CF2FF;
  --bs-font-sans-serif:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --bs-body-font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-900);
  color:var(--text-1);
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  position:relative;
  overflow-x:hidden;
  padding-bottom:0;
}
body::before,body::after{
  content:"";
  position:fixed;
  z-index:0;
  pointer-events:none;
  border-radius:50%;
  filter:blur(120px);
}
body::before{
  width:620px;height:620px;top:-180px;right:-160px;
  background:radial-gradient(circle,rgba(59,224,240,.10),transparent 70%);
}
body::after{
  width:680px;height:680px;bottom:-240px;left:-200px;
  background:radial-gradient(circle,rgba(47,107,255,.10),transparent 70%);
}
header,main,footer{position:relative;z-index:1;}

h1,h2,h3,h4{line-height:1.3;font-weight:700;letter-spacing:-.01em;color:var(--text-1);}
p{margin:0 0 1em;}
a{color:var(--glow);text-decoration:none;transition:color .25s var(--ease);}
a:hover{color:#8CF2FF;}
img{max-width:100%;display:block;}
ul{list-style:none;margin:0;padding:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--glow);outline-offset:2px;}

.container{
  width:100%;
  max-width:1280px;
  margin:0 auto;
  padding-left:32px;
  padding-right:32px;
}
@media (max-width:991.98px){
  .container{padding-left:24px;padding-right:24px;}
}
@media (max-width:575.98px){
  .container{padding-left:20px;padding-right:20px;}
}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(6,11,20,.86);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.nav-top-inner{
  display:flex;
  align-items:center;
  gap:24px;
  height:64px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:40px;height:40px;
  border-radius:12px;
  background:var(--metal);
  color:#0B1424;
  font-weight:800;
  font-size:15px;
  letter-spacing:.02em;
  box-shadow:0 0 22px -10px rgba(59,224,240,.9);
}
.brand-text{
  font-size:17px;
  font-weight:700;
  background:var(--metal);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  white-space:nowrap;
}
.search-box{
  flex:1 1 auto;
  max-width:420px;
  display:flex;
  align-items:center;
  gap:10px;
  height:40px;
  padding:0 18px;
  border-radius:999px;
  background:rgba(255,255,255,.045);
  border:1px solid var(--line);
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.search-box i{color:var(--text-3);font-size:14px;}
.search-box input{
  flex:1;
  background:transparent;
  border:0;
  outline:none;
  color:var(--text-1);
  font-size:14px;
}
.search-box input::placeholder{color:var(--text-3);}
.search-box:focus-within{
  border-color:rgba(59,224,240,.55);
  box-shadow:0 0 0 4px rgba(59,224,240,.10);
}
.nav-top-actions{
  margin-left:auto;
  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-silver);
  background:transparent;
  color:var(--text-1);
  font-size:16px;
}
.nav-toggle:hover{border-color:rgba(59,224,240,.5);}

.nav-channels-wrap{
  border-top:1px solid rgba(255,255,255,.05);
  position:relative;
}
.nav-channels{
  display:flex;
  align-items:center;
  gap:8px;
  padding:8px 0;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.nav-channels::-webkit-scrollbar{display:none;}
.channel{
  flex:0 0 auto;
  padding:8px 16px;
  border-radius:999px;
  font-size:14.5px;
  color:var(--text-2);
  border:1px solid transparent;
  white-space:nowrap;
  transition:background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
}
.channel:hover{
  color:var(--text-1);
  background:rgba(255,255,255,.05);
}
.channel.active{
  color:#EAFBFF;
  border-color:rgba(59,224,240,.45);
  background:rgba(59,224,240,.10);
  box-shadow:0 0 20px -8px rgba(59,224,240,.65);
}

/* ---------- 按钮 ---------- */
.btn-glow{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 26px;
  border-radius:12px;
  border:0;
  font-size:15px;
  font-weight:600;
  color:#F3F8FF;
  background:linear-gradient(135deg,#2F6BFF,#1B4BD8);
  box-shadow:0 0 22px -6px rgba(47,107,255,.75);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),filter .25s var(--ease);
}
.btn-glow:hover{
  color:#fff;
  filter:brightness(1.06);
  box-shadow:0 0 32px -6px rgba(47,107,255,.9);
  transform:translateY(-1px);
}
.btn-glow.btn-sm{
  height:40px;
  padding:0 20px;
  font-size:14px;
}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:12px;
  background:transparent;
  border:1px solid var(--line-silver);
  color:var(--text-1);
  font-size:15px;
  font-weight:600;
  transition:border-color .25s var(--ease),background .25s var(--ease),color .25s var(--ease);
}
.btn-ghost:hover{
  color:#EAFBFF;
  border-color:rgba(59,224,240,.6);
  background:rgba(59,224,240,.08);
}
.link-more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  color:var(--glow);
  text-decoration:underline;
  text-underline-offset:4px;
  text-decoration-thickness:1px;
}
.link-more:hover{color:#8CF2FF;}

/* ---------- 通用板块 ---------- */
.section{padding:92px 0;}
.section-sm{padding:64px 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:44px;
}
.section-head h2{
  font-size:32px;
  margin:0 0 10px;
}
.section-head p{
  margin:0;
  color:var(--text-2);
  font-size:15px;
  max-width:640px;
}
@media (max-width:767.98px){
  .section{padding:60px 0;}
  .section-sm{padding:44px 0;}
  .section-head{flex-direction:column;align-items:flex-start;margin-bottom:30px;}
  .section-head h2{font-size:26px;}
}

.breadcrumb-line{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:13.5px;
  color:var(--text-3);
  padding-top:22px;
}
.breadcrumb-line a{color:var(--text-3);}
.breadcrumb-line a:hover{color:var(--glow);}
.breadcrumb-line .sep{color:rgba(59,224,240,.7);}

/* ---------- 内页 Hero ---------- */
.page-hero{
  padding:44px 0 84px;
  position:relative;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:auto 0 0 0;
  height:1px;
  background:linear-gradient(90deg,rgba(195,207,224,0),rgba(195,207,224,.35),rgba(195,207,224,0));
}
.hero-grid{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:56px;
  align-items:center;
}
.hero-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:26px;
  padding:0 14px;
  border-radius:999px;
  background:rgba(59,224,240,.10);
  color:var(--glow);
  font-size:13px;
  margin-bottom:20px;
}
.page-hero h1{
  font-size:50px;
  margin:0 0 20px;
  max-width:620px;
}
.page-hero h1 .hl{
  color:var(--glow);
}
.hero-sub{
  font-size:17px;
  color:var(--text-2);
  max-width:560px;
  margin-bottom:30px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-bottom:38px;
}
.hero-metrics{
  display:flex;
  align-items:stretch;
  gap:0;
  border-top:1px solid var(--line);
  padding-top:24px;
  max-width:620px;
}
.metric{
  flex:1 1 0;
  padding:0 18px;
  border-left:1px solid var(--line);
}
.metric:first-child{border-left:0;padding-left:0;}
.metric .num{
  display:block;
  font-size:26px;
  font-weight:600;
  letter-spacing:.02em;
  font-variant-numeric:tabular-nums;
  color:#F0F6FF;
}
.metric .num small{font-size:13px;color:var(--text-3);margin-left:3px;font-weight:400;}
.metric .lbl{
  display:block;
  font-size:13px;
  color:var(--text-3);
  margin-top:2px;
}
.hero-media{
  position:relative;
  aspect-ratio:16/10;
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--line-silver);
  box-shadow:0 0 60px -18px rgba(59,224,240,.45),var(--shadow-card);
}
.hero-media img{
  width:100%;height:100%;
  object-fit:cover;
  object-position:center 35%;
}
.hero-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(320deg,rgba(6,11,20,.88) 0%,rgba(6,11,20,.22) 58%,rgba(6,11,20,0) 100%);
}
.hero-media .media-badge{
  position:absolute;
  left:20px;bottom:20px;
  z-index:2;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 16px;
  border-radius:999px;
  background:rgba(10,18,32,.72);
  border:1px solid var(--line-silver);
  font-size:13px;
  color:var(--text-1);
  backdrop-filter:blur(8px);
}
@media (max-width:1199.98px){
  .page-hero h1{font-size:42px;}
  .hero-grid{gap:40px;}
}
@media (max-width:991.98px){
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .page-hero{padding:30px 0 62px;}
  .page-hero h1{font-size:36px;}
  .hero-media{aspect-ratio:16/9;}
  .hero-metrics{display:grid;grid-template-columns:1fr 1fr;gap:18px 0;}
  .metric:nth-child(3){border-left:0;padding-left:0;}
}
@media (max-width:575.98px){
  .page-hero h1{font-size:31px;}
  .hero-sub{font-size:15.5px;}
  .hero-actions .btn-glow,.hero-actions .btn-ghost{width:100%;}
  .metric .num{font-size:22px;}
}

/* ---------- 玻璃卡片 ---------- */
.glass-card{
  position:relative;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card),0 1px 0 rgba(255,255,255,.06) inset;
  transition:transform .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.glass-card::before{
  content:"";
  position:absolute;
  left:16px;right:16px;top:0;
  height:1px;
  background:linear-gradient(90deg,rgba(233,240,250,0),rgba(233,240,250,.7),rgba(233,240,250,0));
  opacity:.75;
  pointer-events:none;
}
.glass-card:hover{
  transform:translateY(-4px);
  border-color:rgba(59,224,240,.35);
  box-shadow:0 0 28px -6px rgba(59,224,240,.35),var(--shadow-card);
}

/* ---------- 时间轴 ---------- */
.timeline{
  position:relative;
  padding-left:58px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:19px;top:14px;bottom:14px;
  width:1px;
  background:linear-gradient(180deg,rgba(59,224,240,.6),rgba(255,255,255,.06));
}
.tl-item{
  position:relative;
  margin-bottom:26px;
}
.tl-item:last-child{margin-bottom:0;}
.tl-node{
  position:absolute;
  left:-58px;
  top:26px;
  width:40px;height:40px;
  border-radius:50%;
  border:1px solid var(--line-silver);
  background:#0A1220;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:14px;
  font-weight:600;
  font-variant-numeric:tabular-nums;
  color:var(--glow);
  box-shadow:0 0 22px -6px rgba(59,224,240,.7);
  z-index:2;
}
.tl-card{
  display:flex;
  gap:24px;
  padding:24px;
}
.tl-thumb{
  flex:0 0 224px;
  aspect-ratio:4/3;
  border-radius:var(--radius-sm);
  overflow:hidden;
  border:1px solid var(--line);
  background:#0A1220;
}
.tl-thumb img{
  width:100%;height:100%;
  object-fit:cover;
}
.tl-body{flex:1 1 auto;min-width:0;}
.tl-body h3{
  font-size:20px;
  margin:14px 0 10px;
}
.tl-body p{
  color:var(--text-2);
  font-size:15px;
  margin:0 0 16px;
}
.tl-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  font-size:13px;
  color:var(--text-3);
}
.tl-meta .time-tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:999px;
  background:rgba(47,107,255,.12);
  border:1px solid rgba(47,107,255,.35);
  color:#BFD2FF;
  font-variant-numeric:tabular-nums;
}
.pill{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:999px;
  background:rgba(59,224,240,.10);
  color:var(--glow);
  font-size:12.5px;
  line-height:1;
}
@media (max-width:767.98px){
  .timeline{padding-left:44px;}
  .timeline::before{left:15px;}
  .tl-node{left:-44px;top:20px;width:32px;height:32px;font-size:12.5px;}
  .tl-card{flex-direction:column;gap:16px;padding:20px;}
  .tl-thumb{flex:0 0 auto;width:100%;aspect-ratio:16/9;}
}

/* ---------- 要点清单 ---------- */
.point-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}
.point-card{
  padding:26px 24px;
}
.point-card .ico{
  width:44px;height:44px;
  border-radius:12px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:rgba(59,224,240,.10);
  border:1px solid rgba(59,224,240,.28);
  color:var(--glow);
  font-size:17px;
  margin-bottom:18px;
}
.point-card h3{font-size:18px;margin:0 0 10px;}
.point-card p{color:var(--text-2);font-size:14.5px;margin:0;}
@media (max-width:991.98px){
  .point-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:575.98px){
  .point-grid{grid-template-columns:1fr;}
}

/* ---------- FAQ ---------- */
.faq-accordion .accordion-item{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:14px;
  margin-bottom:12px;
  overflow:hidden;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.faq-accordion .accordion-item:last-child{margin-bottom:0;}
.faq-accordion .accordion-button{
  background:transparent;
  color:var(--text-1);
  font-size:16.5px;
  font-weight:600;
  padding:20px 22px;
  box-shadow:none;
  border-radius:14px !important;
}
.faq-accordion .accordion-button:not(.collapsed){
  color:#DFFBFF;
  background:rgba(59,224,240,.06);
}
.faq-accordion .accordion-button:focus{
  box-shadow:0 0 0 4px rgba(59,224,240,.12);
  border-color:rgba(59,224,240,.5);
}
.faq-accordion .accordion-button::after{
  content:"+";
  background-image:none;
  width:28px;height:28px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:20px;
  color:var(--glow);
  transform:none;
  transition:transform .25s var(--ease);
}
.faq-accordion .accordion-button:not(.collapsed)::after{
  content:"−";
  transform:none;
}
.faq-accordion .accordion-body{
  color:var(--text-2);
  font-size:15px;
  line-height:1.85;
  padding:2px 22px 22px;
  border-left:3px solid rgba(59,224,240,.55);
  margin-left:0;
}

/* ---------- 相关分类 pill ---------- */
.cat-pills{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
}
.cat-pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:42px;
  padding:0 20px;
  border-radius:999px;
  border:1px solid var(--line-silver);
  background:rgba(255,255,255,.03);
  color:var(--text-1);
  font-size:14.5px;
  transition:border-color .25s var(--ease),background .25s var(--ease),color .25s var(--ease),transform .25s var(--ease);
}
.cat-pill i{color:var(--glow);font-size:13px;}
.cat-pill:hover{
  color:#EAFBFF;
  border-color:rgba(59,224,240,.55);
  background:rgba(59,224,240,.08);
  transform:translateY(-2px);
}

/* ---------- CTA 与表单 ---------- */
.cta-band{
  position:relative;
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:linear-gradient(150deg,rgba(47,107,255,.14),rgba(10,18,32,.9) 55%,rgba(59,224,240,.10));
  overflow:hidden;
  padding:48px;
}
.cta-band::before{
  content:"";
  position:absolute;
  left:24px;right:24px;top:0;
  height:1px;
  background:linear-gradient(90deg,rgba(233,240,250,0),rgba(233,240,250,.75),rgba(233,240,250,0));
}
.cta-grid{
  display:grid;
  grid-template-columns:.9fr 1.1fr;
  gap:48px;
  align-items:start;
}
.cta-copy h2{font-size:30px;margin:0 0 14px;}
.cta-copy p{color:var(--text-2);font-size:15px;margin:0 0 22px;}
.cta-list li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  color:var(--text-2);
  font-size:14.5px;
  margin-bottom:12px;
}
.cta-list i{color:var(--glow);margin-top:5px;font-size:13px;}
.form-card{
  padding:30px 28px;
}
.form-label{
  font-size:13px;
  color:var(--text-2);
  margin-bottom:7px;
  display:block;
}
.form-label .req{color:var(--accent);margin-left:2px;}
.form-control,.form-select{
  background:var(--panel);
  border:1px solid var(--line-silver);
  border-radius:12px;
  height:48px;
  color:var(--text-1);
  font-size:14.5px;
  padding:0 16px;
  box-shadow:none;
}
textarea.form-control{
  height:auto;
  min-height:104px;
  padding:12px 16px;
  resize:vertical;
}
.form-control::placeholder{color:var(--text-3);}
.form-control:focus,.form-select:focus{
  background:var(--panel-strong);
  border-color:rgba(59,224,240,.65);
  box-shadow:0 0 0 4px rgba(59,224,240,.12);
  color:var(--text-1);
}
.form-select option{background:#0A1220;color:var(--text-1);}
.form-hint{
  font-size:13px;
  color:var(--text-3);
  margin:14px 0 0;
}
.form-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
  margin-bottom:16px;
}
@media (max-width:991.98px){
  .cta-band{padding:34px 24px;}
  .cta-grid{grid-template-columns:1fr;gap:32px;}
}
@media (max-width:575.98px){
  .form-row{grid-template-columns:1fr;}
  .cta-copy h2{font-size:24px;}
}

/* ---------- 页脚 ---------- */
.site-footer{
  border-top:1px solid var(--line);
  background:rgba(10,18,32,.6);
  padding:64px 0 30px;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:40px;
}
.site-footer .brand{margin-bottom:18px;}
.site-footer p{
  color:var(--text-2);
  font-size:14px;
  max-width:340px;
  margin:0;
}
.site-footer h4{
  font-size:15px;
  margin:0 0 18px;
  color:var(--text-1);
}
.footer-links li{margin-bottom:11px;}
.footer-links a,.footer-links span{
  color:var(--text-2);
  font-size:14px;
}
.footer-links a:hover{color:var(--glow);}
.footer-bottom{
  border-top:1px solid var(--line);
  padding-top:22px;
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  font-size:13px;
  color:var(--text-3);
}
@media (max-width:991.98px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:575.98px){
  .footer-grid{grid-template-columns:1fr;}
  .site-footer{padding:46px 0 26px;}
}

/* ---------- 底部固定转化条 ---------- */
.sticky-cta{
  position:fixed;
  right:24px;
  bottom:24px;
  z-index:1040;
  display:flex;
  align-items:center;
  gap:14px;
  padding:12px 14px 12px 22px;
  border-radius:999px;
  background:rgba(10,18,32,.92);
  border:1px solid var(--line-silver);
  box-shadow:0 22px 45px -22px rgba(0,0,0,.95);
  backdrop-filter:blur(14px);
  opacity:0;
  transform:translateY(14px);
  pointer-events:none;
  transition:opacity .3s var(--ease),transform .3s var(--ease);
}
.sticky-cta.show{
  opacity:1;
  transform:translateY(0);
  pointer-events:auto;
}
.sticky-cta .txt{
  font-size:14px;
  color:var(--text-1);
  white-space:nowrap;
}
.sticky-cta .icon-btn{
  width:40px;height:40px;
  border-radius:50%;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border:1px solid var(--line-silver);
  color:var(--text-1);
  background:transparent;
  font-size:15px;
}
.sticky-cta .icon-btn:hover{
  border-color:rgba(59,224,240,.6);
  color:var(--glow);
  background:rgba(59,224,240,.08);
}
@media (max-width:767.98px){
  body{padding-bottom:64px;}
  .sticky-cta{
    left:0;right:0;bottom:0;
    border-radius:0;
    border-left:0;border-right:0;border-bottom:0;
    padding:10px 16px;
    justify-content:space-between;
    height:60px;
  }
  .sticky-cta .txt{font-size:13.5px;}
  .sticky-cta .icon-btn{width:36px;height:36px;}
}

/* ---------- 移动端导航 ---------- */
@media (max-width:767.98px){
  .search-box{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  body.nav-open .nav-channels{flex-wrap:wrap;overflow:visible;padding-bottom:14px;}
  .nav-top-inner{height:60px;gap:14px;}
  .brand-text{font-size:16px;}
}