/* roulang page: index */
:root{
  --bg-base:#060A14;
  --bg-end:#0A1222;
  --bg-elev-1:#0E1729;
  --bg-elev-2:#131E33;
  --brand-1:#23E6D0;
  --brand-2:#FF7A34;
  --brand-3:#2F6BFF;
  --text-1:#EAF2FF;
  --text-2:#9FB0CC;
  --text-3:#6B7C99;
  --line:rgba(150,190,255,.12);
  --line-brand:rgba(35,230,208,.20);
  --ok:#3DDC97;
  --warn:#FFC53D;
  --err:#FF5C6C;
  --r-card:14px;
  --r-btn:10px;
  --r-input:10px;
  --r-img:12px;
  --shadow-card:0 12px 32px -16px rgba(0,0,0,.7);
  --shadow-glow:0 0 0 1px rgba(35,230,208,.55),0 10px 26px -8px rgba(35,230,208,.45);
  --cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  --num:Inter,"DIN Alternate",Bahnschrift,system-ui,sans-serif;
  --c-w:1200px;
  --sp-sec:96px;
}
@media (max-width:1199px){:root{--sp-sec:72px}}
@media (max-width:639px){:root{--sp-sec:56px}}

/* ===== reset 补充 ===== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--cn);
  font-size:16px;
  line-height:1.8;
  color:var(--text-1);
  background:linear-gradient(180deg,#060A14 0%,#0A1222 100%);
  min-height:100%;
  overflow-x:hidden;
  position:relative;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:linear-gradient(rgba(150,190,255,.06) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(150,190,255,.06) 1px,transparent 1px);
  background-size:32px 32px;
}
body::after{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background:radial-gradient(680px 420px at 6% -8%,rgba(35,230,208,.13),transparent 70%),
             radial-gradient(760px 500px at 98% 96%,rgba(47,107,255,.16),transparent 70%);
}
img{max-width:100%;display:block;border:0}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font-family:inherit}
a{color:var(--brand-1);text-decoration:none;transition:color .2s ease-out}
a:hover{color:#63F5E4}
input,select,textarea{font-family:inherit;font-size:15px}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--brand-1);outline-offset:2px;border-radius:4px
}
.num{font-family:var(--num);font-variant-numeric:tabular-nums}

/* ===== 容器 ===== */
.container{
  width:100%;max-width:var(--c-w);margin:0 auto;
  padding-left:20px;padding-right:20px;position:relative;z-index:2;
}
@media (min-width:640px){.container{padding-left:24px;padding-right:24px}}
@media (min-width:1024px){.container{padding-left:32px;padding-right:32px}}
.grid-x{display:flex;flex-flow:row wrap}
.gx{margin-left:-12px;margin-right:-12px}
.gx>.cell{padding-left:12px;padding-right:12px}
@media (min-width:1024px){.gx{margin-left:-14px;margin-right:-14px}.gx>.cell{padding-left:14px;padding-right:14px}}
.gp>.cell{margin-bottom:24px}
@media (min-width:1024px){.gp>.cell{margin-bottom:28px}}

/* ===== 顶部命令栏 ===== */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(8,14,26,.72);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.nav-inner{display:flex;align-items:center;gap:18px;height:64px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--text-1)}
.logo:hover{color:var(--text-1)}
.logo-mark{color:var(--brand-1);display:flex;align-items:center;filter:drop-shadow(0 0 8px rgba(35,230,208,.35))}
.logo-txt{display:flex;flex-direction:column;line-height:1.15}
.logo-txt strong{font-size:17px;font-weight:700;letter-spacing:.02em}
.logo-txt em{font-style:normal;font-size:11px;color:var(--text-3);letter-spacing:.04em}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px}
.main-nav a{
  position:relative;display:block;padding:8px 12px;border-radius:8px;
  font-size:14.5px;color:var(--text-2);transition:all .2s ease-out;
}
.main-nav a:hover{color:var(--text-1);background:rgba(150,190,255,.07)}
.main-nav a.is-active{color:var(--text-1)}
.main-nav a.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:-2px;height:2px;
  background:var(--brand-1);border-radius:2px;box-shadow:0 0 10px rgba(35,230,208,.7);
}
.nav-right{display:flex;align-items:center;gap:10px;margin-left:auto}
.search-wrap{position:relative;width:262px}
.cmd-search{
  width:100%;height:40px;padding:0 40px 0 38px;border-radius:var(--r-input);
  background:var(--bg-elev-1);border:1px solid var(--line);color:var(--text-1);
  transition:all .2s ease-out;
}
.cmd-search::placeholder{color:var(--text-3);font-size:13.5px}
.cmd-search:focus{
  outline:none;border-color:var(--line-brand);
  box-shadow:0 0 0 1px var(--line-brand),0 0 18px -6px rgba(35,230,208,.5);
  background:#0B1526;
}
.search-ico{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--text-3);display:flex}
.search-kbd{
  position:absolute;right:9px;top:50%;transform:translateY(-50%);
  font-size:11px;color:var(--text-3);border:1px solid var(--line);
  border-radius:5px;padding:1px 6px;line-height:1.5;background:var(--bg-elev-2);
}
.search-panel{
  display:none;position:absolute;top:calc(100% + 10px);left:0;right:0;
  background:rgba(14,23,41,.94);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.08);border-radius:var(--r-card);
  box-shadow:0 20px 46px -22px rgba(0,0,0,.9);
  padding:14px;max-height:320px;overflow-y:auto;
}
.search-wrap:focus-within .search-panel{display:block}
.search-panel h5{font-size:11.5px;letter-spacing:.12em;color:var(--text-3);margin:0 0 8px;font-weight:600}
.search-panel h5+ul{margin-bottom:14px}
.search-panel ul li a{display:block;font-size:13.5px;color:var(--text-2);padding:6px 8px;border-radius:8px}
.search-panel ul li a:hover{background:rgba(35,230,208,.1);color:var(--brand-1)}
.icon-btn{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:var(--r-btn);background:var(--bg-elev-1);border:1px solid var(--line);
  color:var(--text-2);cursor:pointer;transition:all .2s ease-out;position:relative;
}
.icon-btn:hover{color:var(--brand-1);border-color:var(--line-brand);transform:translateY(-2px)}
.icon-btn::after{
  content:attr(data-tip);position:absolute;top:calc(100% + 8px);left:50%;transform:translateX(-50%);
  background:var(--bg-elev-2);color:var(--text-1);font-size:12px;white-space:nowrap;
  padding:4px 9px;border-radius:6px;border:1px solid var(--line);
  opacity:0;pointer-events:none;transition:opacity .18s ease-out;z-index:20;
}
.icon-btn:hover::after{opacity:1}
.nav-burger{display:none}

/* ===== 按钮体系 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:0;cursor:pointer;
  transition:all .2s ease-out;white-space:nowrap;
}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.btn-primary{
  background:var(--brand-1);color:#04140F;box-shadow:var(--shadow-glow);
  animation:breathe 6s ease-in-out infinite;
}
.btn-primary:hover{color:#04140F;transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(35,230,208,.85),0 16px 34px -8px rgba(35,230,208,.6)}
.btn-primary:active{transform:translateY(1px)}
.btn-line{
  background:transparent;color:var(--brand-1);
  box-shadow:inset 0 0 0 1px var(--brand-1);
}
.btn-line:hover{background:rgba(35,230,208,.12);color:var(--brand-1);transform:translateY(-2px)}
.btn-line:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:var(--text-2);padding:0 4px;height:auto}
.btn-ghost:hover{color:var(--brand-1)}
.btn-ghost .arw{transition:transform .2s ease-out}
.btn-ghost:hover .arw{transform:translateX(4px)}
@keyframes breathe{0%,100%{opacity:1}50%{opacity:.9}}

/* ===== 通用标签 / 徽章 ===== */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
  border-radius:999px;font-size:12.5px;letter-spacing:.04em;font-weight:500;
  background:rgba(35,230,208,.12);color:var(--brand-1);
}
.badge-orange{background:rgba(255,122,52,.13);color:var(--brand-2)}

/* ===== 板块 ===== */
.section{padding:var(--sp-sec) 0;position:relative;z-index:1}
.section-tint{background:linear-gradient(180deg,rgba(14,23,41,0) 0%,rgba(14,23,41,.6) 45%,rgba(14,23,41,0) 100%)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.sec-head h2{
  font-size:clamp(26px,3vw,36px);font-weight:600;line-height:1.3;letter-spacing:-.01em;
  padding-left:16px;position:relative;
}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;
  background:linear-gradient(180deg,var(--brand-1),var(--brand-3));border-radius:2px;
}
.sec-head p{color:var(--text-2);font-size:15px;margin-top:10px;padding-left:16px;max-width:38em}
.slash-sep{height:1px;background:linear-gradient(90deg,transparent,rgba(35,230,208,.35) 30%,rgba(47,107,255,.35) 70%,transparent);transform:skewY(-.4deg)}

/* ===== Hero ===== */
.hero{
  position:relative;overflow:hidden;padding:84px 0 72px;
  border-bottom:1px solid var(--line);
}
.hero::before{
  content:"";position:absolute;inset:0;z-index:1;
  background:radial-gradient(620px 380px at 12% 8%,rgba(35,230,208,.16),transparent 68%),
             radial-gradient(700px 460px at 92% 82%,rgba(47,107,255,.2),transparent 70%);
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:140px;z-index:1;
  background:linear-gradient(180deg,transparent,rgba(6,10,20,.95));
}
.hero .container{position:relative;z-index:3}
.hero-grid{display:flex;flex-wrap:wrap;align-items:center;margin-left:-14px;margin-right:-14px}
.hero-grid>[class*="cell"]{padding-left:14px;padding-right:14px}
.hero-copy{max-width:620px}
.hero h1{
  font-size:clamp(32px,4.6vw,54px);font-weight:700;line-height:1.18;
  letter-spacing:-.01em;margin:18px 0 16px;
}
.hero-sub{font-size:17px;color:var(--text-2);max-width:34em;line-height:1.8}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin:30px 0 26px}
.trust{display:flex;flex-wrap:wrap;gap:22px}
.trust li{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--text-2);letter-spacing:.04em}
.trust svg{color:var(--brand-1);flex:0 0 auto}
.hero-visual{position:relative;margin-top:44px}
.hero-img-wrap{
  border-radius:var(--r-card);overflow:hidden;position:relative;
  box-shadow:var(--shadow-card),inset 0 0 0 1px var(--line);
  background:linear-gradient(140deg,rgba(35,230,208,.16),rgba(47,107,255,.14));
}
.hero-img-wrap img{width:100%;aspect-ratio:16/11;object-fit:cover}
.hero-img-wrap::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,20,.1) 0%,rgba(6,10,20,.72) 100%);
}
.glass-float{
  position:absolute;z-index:4;padding:12px 16px;border-radius:12px;
  background:rgba(19,30,51,.66);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.08);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.12),0 16px 34px -18px rgba(0,0,0,.9);
  display:flex;flex-direction:column;gap:2px;min-width:118px;
}
.glass-float .gf-num{font-family:var(--num);font-variant-numeric:tabular-nums;font-size:28px;font-weight:700;color:var(--brand-1);line-height:1.1}
.glass-float .gf-label{font-size:12px;color:var(--text-2);letter-spacing:.05em}
.gf-1{left:-10px;bottom:56px}
.gf-2{right:-6px;top:34px}
.gf-2 .gf-num{color:var(--brand-2)}

/* ===== 关键词直达条 ===== */
.cmd-bar{padding:0 0 8px;position:relative;z-index:2;margin-top:-30px}
.cmd-bar-inner{
  background:var(--bg-elev-1);border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px;box-shadow:var(--shadow-card);
}
.cmd-bar-row{display:flex;gap:12px;flex-wrap:wrap}
.cmd-bar-row .cmd-field{position:relative;flex:1 1 320px;min-width:0}
.cmd-field input{
  width:100%;height:48px;padding:0 14px 0 44px;border-radius:var(--r-input);
  background:#0A1424;border:1px solid var(--line);color:var(--text-1);
  transition:all .2s ease-out;
}
.cmd-field input::placeholder{color:var(--text-3)}
.cmd-field input:focus{outline:none;border-color:var(--line-brand);box-shadow:0 0 0 1px var(--line-brand),0 0 20px -8px rgba(35,230,208,.6)}
.cmd-field .search-ico{left:14px}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.chip{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;
  font-size:13px;color:var(--text-2);background:var(--bg-elev-2);
  border:1px solid var(--line);transition:all .2s ease-out;
}
.chip:hover{color:var(--brand-1);border-color:var(--line-brand);transform:translateY(-1px)}

/* ===== 面板 / 卡片 ===== */
.panel{
  background:var(--bg-elev-1);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);overflow:hidden;height:100%;
  transition:all .2s ease-out;display:flex;flex-direction:column;
}
.panel:hover{transform:translateY(-2px);box-shadow:var(--shadow-card),0 0 0 1px var(--line-brand)}
.panel img{width:100%;aspect-ratio:16/9;object-fit:cover}
.panel-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1}
.panel h3{font-size:21px;font-weight:600;line-height:1.45}
.panel p{color:var(--text-2);font-size:15px;max-width:36em}
.panel-sm{padding:22px}
.panel-sm .panel-body{padding:0}
.panel-stack{display:flex;flex-direction:column;gap:24px;height:100%}
@media (min-width:1024px){.panel-stack{gap:28px}}
.panel-stack .panel{flex:1}
.icon-badge{
  width:42px;height:42px;border-radius:11px;display:inline-flex;align-items:center;justify-content:center;
  background:rgba(35,230,208,.1);color:var(--brand-1);box-shadow:inset 0 0 0 1px var(--line-brand);
}
.icon-badge.orange{background:rgba(255,122,52,.1);color:var(--brand-2);box-shadow:inset 0 0 0 1px rgba(255,122,52,.24)}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--brand-1);margin-top:auto}
.link-arrow .arw{transition:transform .2s ease-out}
.link-arrow:hover .arw{transform:translateX(4px)}

/* ===== 场景演示 ===== */
.scene-grid{align-items:center}
.device-frame{
  border-radius:var(--r-card);overflow:hidden;background:var(--bg-elev-1);
  box-shadow:var(--shadow-card),inset 0 0 0 1px var(--line);
}
.device-frame img{width:100%;aspect-ratio:16/11;object-fit:cover}
.device-frame figcaption{padding:14px 18px;font-size:13px;color:var(--text-3);border-top:1px solid var(--line)}
.scene-tabs{border:0;background:transparent;display:flex;flex-wrap:wrap;gap:8px;margin:0 0 22px;padding:0}
.scene-tabs .tabs-title{margin:0;float:none}
.scene-tabs .tabs-title>a{
  display:block;padding:9px 16px;border-radius:999px;font-size:14px;color:var(--text-2);
  background:var(--bg-elev-1);box-shadow:inset 0 0 0 1px var(--line);transition:all .2s ease-out;
}
.scene-tabs .tabs-title>a:hover{color:var(--text-1);background:var(--bg-elev-2)}
.scene-tabs .tabs-title.is-active>a{
  background:rgba(35,230,208,.14);color:var(--brand-1);box-shadow:inset 0 0 0 1px var(--line-brand);
}
.scene-content{border:0;background:transparent}
.scene-content .tabs-panel{padding:0}
.scene-content h3{font-size:21px;font-weight:600;margin-bottom:10px}
.scene-content>div>p{color:var(--text-2);font-size:15px;margin-bottom:20px;max-width:36em}
.steps{display:flex;flex-direction:column;gap:16px}
.steps li{display:flex;align-items:flex-start;gap:14px;position:relative;padding-bottom:4px}
.steps li:not(:last-child)::after{
  content:"";position:absolute;left:17px;top:38px;bottom:-8px;width:1px;
  background:linear-gradient(180deg,rgba(255,122,52,.5),rgba(255,122,52,.05));
}
.step-n{
  font-family:var(--num);font-variant-numeric:tabular-nums;font-size:15px;font-weight:700;
  width:34px;height:34px;flex:0 0 34px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;background:rgba(255,122,52,.12);color:var(--brand-2);
  box-shadow:inset 0 0 0 1px rgba(255,122,52,.24);
}
.steps .step-txt{font-size:14.5px;color:var(--text-2);padding-top:5px}

/* ===== 最新信息 / CMS ===== */
.cms-news__item{
  background:var(--bg-elev-1);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);overflow:hidden;transition:all .2s ease-out;height:100%;
}
.cms-news__item:hover{transform:translateY(-2px);box-shadow:var(--shadow-card),0 0 0 1px var(--line-brand)}
.cms-news__link{display:block;color:inherit;height:100%}
.cms-news__link:hover{color:inherit}
.cms-news__thumb{position:relative;background:linear-gradient(140deg,rgba(35,230,208,.18),rgba(47,107,255,.16))}
.cms-news__thumb img{width:100%;aspect-ratio:16/9;object-fit:cover}
.cms-news__body{padding:24px;display:flex;flex-direction:column;gap:12px}
.cms-news__title{
  font-size:20px;font-weight:600;line-height:1.45;color:var(--text-1);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.cms-news__desc{
  color:var(--text-2);font-size:14.5px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.cms-news__meta{display:flex;align-items:center;gap:14px;font-size:13px;color:var(--text-3);letter-spacing:.04em;margin-top:auto}
.cms-side{display:flex;flex-direction:column;gap:16px}
.cms-news__item--mini .cms-news__link{display:flex;gap:12px;padding:16px 18px;align-items:flex-start}
.mini-dot{
  width:7px;height:7px;border-radius:50%;background:var(--brand-1);flex:0 0 7px;margin-top:9px;
  box-shadow:0 0 10px rgba(35,230,208,.8);
}
.mini-body{display:flex;flex-direction:column;gap:8px;min-width:0}
.cms-news__item--mini .cms-news__title{font-size:15px;line-height:1.55}
.cms-news__item--mini .cms-news__meta{margin-top:0;gap:12px}
.mini-cat{color:var(--brand-2)}
.cms-more{margin-top:32px;text-align:center}
.cms-empty{
  min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  background:var(--bg-elev-1);border:1px dashed var(--line);border-radius:var(--r-card);
  color:var(--text-2);text-align:center;padding:32px 20px;
}
.cms-empty svg{color:var(--brand-1);opacity:.7}
.cms-empty p{font-size:15px}

/* ===== 社会认同 ===== */
.metrics{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-bottom:44px}
@media (min-width:900px){.metrics{grid-template-columns:repeat(4,1fr);gap:24px}}
.metric{
  background:var(--bg-elev-1);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px 22px;box-shadow:var(--shadow-card);
}
.metric .m-num{font-family:var(--num);font-variant-numeric:tabular-nums;font-size:clamp(28px,3vw,36px);font-weight:700;color:var(--brand-1);line-height:1.1}
.metric:nth-child(even) .m-num{color:var(--brand-2)}
.metric .m-txt{font-size:13px;color:var(--text-2);margin-top:8px;letter-spacing:.03em}
.quotes{display:flex;gap:20px;overflow-x:auto;padding-bottom:8px;scroll-snap-type:x mandatory}
@media (min-width:900px){.quotes{overflow:visible;display:grid;grid-template-columns:repeat(3,1fr)}}
.quote{
  flex:0 0 84%;scroll-snap-align:start;background:var(--bg-elev-1);border:1px solid var(--line);
  border-radius:var(--r-card);padding:24px;box-shadow:var(--shadow-card);display:flex;flex-direction:column;gap:14px;
}
@media (min-width:900px){.quote{flex:1 1 auto}}
.quote-head{display:flex;align-items:center;gap:12px}
.avatar{
  width:40px;height:40px;border-radius:50%;flex:0 0 40px;display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,rgba(35,230,208,.28),rgba(47,107,255,.3));
  color:var(--text-1);font-size:15px;font-weight:600;
}
.quote-head .q-name{font-size:14.5px;font-weight:600}
.quote-head .q-src{font-size:12px;color:var(--text-3);letter-spacing:.05em}
.quote p{font-size:14.5px;color:var(--text-2);line-height:1.85}

/* ===== FAQ ===== */
.faq-acc{max-width:820px;margin:0 auto;border:0;background:transparent}
.faq-acc .accordion-item{border:0;border-bottom:1px solid var(--line);background:transparent;margin:0}
.faq-acc .accordion-title{
  border:0;background:transparent;color:var(--text-1);font-size:17px;font-weight:600;line-height:1.6;
  padding:22px 46px 22px 0;position:relative;transition:color .2s ease-out;
}
.faq-acc .accordion-title:hover,.faq-acc .accordion-title:focus{color:var(--brand-1);background:transparent}
.faq-acc .accordion-title::before{
  content:"";position:absolute;right:8px;top:31px;width:14px;height:2px;background:var(--brand-1);border-radius:2px;
}
.faq-acc .accordion-title::after{
  content:"";position:absolute;right:14px;top:25px;width:2px;height:14px;background:var(--brand-1);border-radius:2px;
  transition:transform .2s ease-out,opacity .2s ease-out;
}
.faq-acc .accordion-item.is-active .accordion-title::after{transform:rotate(90deg);opacity:0}
.faq-acc .accordion-content{
  border:0;background:transparent;color:var(--text-2);font-size:15px;line-height:1.85;padding:0 46px 24px 0;
}

/* ===== CTA 面板 ===== */
.cta-panel{
  position:relative;overflow:hidden;border-radius:18px;padding:48px 32px;text-align:center;
  background:linear-gradient(140deg,rgba(19,30,51,.94),rgba(10,18,34,.94));
  border:1px solid rgba(255,255,255,.08);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.1),0 30px 60px -30px rgba(0,0,0,.9);
}
.cta-panel::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(520px 260px at 20% 0%,rgba(35,230,208,.2),transparent 68%),
             radial-gradient(520px 300px at 88% 100%,rgba(47,107,255,.22),transparent 70%);
}
.cta-panel>*{position:relative;z-index:2}
.cta-panel h2{font-size:clamp(24px,3vw,34px);font-weight:600;line-height:1.35}
.cta-panel p{color:var(--text-2);font-size:15.5px;margin:14px auto 26px;max-width:32em}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}

/* ===== 表单（页脚咨询位） ===== */
.inline-form{display:flex;gap:12px;flex-wrap:wrap}
.inline-form input{
  flex:1 1 240px;height:48px;padding:0 14px;border-radius:var(--r-input);
  background:#0A1424;border:1px solid var(--line);color:var(--text-1);transition:all .2s ease-out;
}
.inline-form input::placeholder{color:var(--text-3)}
.inline-form input:focus{outline:none;border-color:var(--line-brand);box-shadow:0 0 0 1px var(--line-brand),0 0 20px -8px rgba(35,230,208,.6)}
.form-hint{font-size:13px;color:var(--text-3);margin-top:10px}
.form-hint.is-err{color:var(--err)}
.form-hint.is-ok{color:var(--ok)}

/* ===== 页脚 ===== */
.site-footer{
  position:relative;z-index:2;margin-top:var(--sp-sec);
  background:linear-gradient(180deg,rgba(14,23,41,.7),rgba(6,10,20,.96));
  border-top:1px solid rgba(35,230,208,.26);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.05);
}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;padding:56px 0 36px}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:repeat(4,1fr);gap:28px}}
.f-col h4{font-size:13px;letter-spacing:.08em;color:var(--text-3);font-weight:600;margin-bottom:16px}
.f-col ul li a{display:inline-block;font-size:14.5px;color:var(--text-2);line-height:2.2;transition:all .2s ease-out}
.f-col ul li a:hover{color:var(--brand-1);transform:translateX(2px)}
.f-col p{font-size:14px;color:var(--text-3);line-height:1.9}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  padding:20px 0 28px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3);
}
.footer-bottom span{letter-spacing:.04em}

/* ===== 底部固定转化条 ===== */
.bottom-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:80;height:64px;
  transform:translateY(110%);transition:transform .3s ease-out;
  background:rgba(10,18,34,.74);
  -webkit-backdrop-filter:blur(14px) saturate(140%);backdrop-filter:blur(14px) saturate(140%);
  border-top:1px solid rgba(35,230,208,.3);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 -14px 34px -22px rgba(0,0,0,.95);
}
.bottom-cta.is-visible{transform:translateY(0)}
.bottom-cta .bc-inner{display:flex;align-items:center;gap:16px;height:64px}
.bc-text{font-size:14px;color:var(--text-2);min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.bc-text strong{color:var(--text-1);font-weight:600}
.bc-actions{display:flex;align-items:center;gap:14px;margin-left:auto}
.bc-close{
  width:34px;height:34px;border-radius:9px;background:transparent;border:1px solid var(--line);
  color:var(--text-3);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;transition:all .2s ease-out;
}
.bc-close:hover{color:var(--text-1);border-color:var(--line-brand)}
body.has-bottom-cta{padding-bottom:88px}

/* ===== 移动端导航抽屉 ===== */
.nav-overlay{
  display:none;position:fixed;inset:0;z-index:90;background:rgba(4,8,16,.66);
  -webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);
}
.nav-overlay.is-open{display:block}
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;width:84vw;max-width:360px;z-index:95;
  background:linear-gradient(180deg,#0B1526,#0A1222);
  border-left:1px solid var(--line);transform:translateX(102%);
  transition:transform .3s ease-out;padding:22px 20px 40px;overflow-y:auto;
}
.nav-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-title{font-size:13px;letter-spacing:.08em;color:var(--text-3)}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:22px}
.drawer-nav a{display:block;padding:12px 6px;font-size:15.5px;color:var(--text-2);border-bottom:1px solid var(--line)}
.drawer-nav a.is-active{color:var(--brand-1);box-shadow:inset 2px 0 0 var(--brand-1);padding-left:14px}
body.no-scroll{overflow:hidden}

/* ===== 响应式 ===== */
@media (max-width:1099px){
  .search-wrap{width:210px}
  .main-nav a{padding:8px 9px;font-size:14px}
}
@media (max-width:899px){
  .main-nav,.search-wrap,.nav-right .icon-btn{display:none}
  .nav-burger{display:inline-flex}
  .hero{padding:56px 0 48px}
  .hero-visual{margin-top:36px}
  .gf-1{left:6px;bottom:16px}
  .gf-2{right:6px;top:16px}
}
@media (max-width:639px){
  .nav-inner{height:58px}
  .logo-txt em{display:none}
  .hero h1{font-size:clamp(28px,7.6vw,34px)}
  .hero-sub{font-size:15.5px}
  .hero-cta .btn{flex:1 1 100%}
  .cmd-bar{margin-top:-16px}
  .cmd-bar-inner{padding:16px}
  .panel h3{font-size:19px}
  .cms-news__body{padding:20px}
  .cta-panel{padding:34px 20px}
  .cta-actions .btn{flex:1 1 100%}
  .bottom-cta{height:56px}
  .bottom-cta .bc-inner{height:56px;gap:10px}
  .bc-text{font-size:13px}
  .bc-actions .btn-ghost{display:none}
  .bc-actions{gap:8px}
  body.has-bottom-cta{padding-bottom:calc(72px + env(safe-area-inset-bottom))}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}

/* roulang page: article */
:root{
  --bg-base:#060A14;
  --bg-elev-1:#0E1729;
  --bg-elev-2:#131E33;
  --brand-1:#23E6D0;
  --brand-2:#FF7A34;
  --brand-3:#2F6BFF;
  --text-1:#EAF2FF;
  --text-2:#9FB0CC;
  --text-3:#6B7C99;
  --line:rgba(150,190,255,.12);
  --line-brand:rgba(35,230,208,.20);
  --ok:#3DDC97;
  --warn:#FFC53D;
  --err:#FF5C6C;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-card:0 12px 32px -16px rgba(0,0,0,.7);
  --shadow-glow:0 0 0 1px rgba(35,230,208,.55), 0 10px 26px -8px rgba(35,230,208,.45);
  --container:1200px;
  --ease:200ms ease-out;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  padding:0;
  background:linear-gradient(180deg,#060A14 0%,#0A1222 100%);
  background-attachment:fixed;
  color:var(--text-1);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:linear-gradient(rgba(150,190,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(150,190,255,.06) 1px,transparent 1px);
  background-size:32px 32px;
  mask-image:radial-gradient(circle at 20% 10%,rgba(0,0,0,.9),transparent 72%);
  -webkit-mask-image:radial-gradient(circle at 20% 10%,rgba(0,0,0,.9),transparent 72%);
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(680px 420px at 8% 0%,rgba(35,230,208,.13),transparent 70%),
    radial-gradient(760px 480px at 100% 22%,rgba(47,107,255,.16),transparent 72%);
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color var(--ease),border-color var(--ease),opacity var(--ease);}
a:hover{color:var(--brand-1);}
button,input{font-family:inherit;font-size:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,h5{margin:0;font-weight:600;letter-spacing:-.01em;}
p{margin:0 0 1em;}
:focus-visible{outline:2px solid var(--brand-1);outline-offset:2px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;position:relative;z-index:2;}
@media(min-width:640px){.container{padding:0 24px;}}
@media(min-width:1024px){.container{padding:0 32px;}}
.num{font-family:Inter,"DIN Alternate",Bahnschrift,system-ui,sans-serif;font-variant-numeric:tabular-nums;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform var(--ease),box-shadow var(--ease),background-color var(--ease),color var(--ease),border-color var(--ease);
}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--brand-1);color:#04121A;box-shadow:var(--shadow-glow);}
.btn-primary:hover{background:#4df0dd;color:#04121A;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(35,230,208,.7),0 14px 30px -8px rgba(35,230,208,.55);}
.btn-line{background:transparent;color:var(--brand-1);border-color:rgba(35,230,208,.45);}
.btn-line:hover{background:rgba(35,230,208,.12);color:var(--brand-1);transform:translateY(-2px);}
.btn-ghost{background:transparent;color:var(--text-2);padding:8px 0;min-height:auto;}
.btn-ghost:hover{color:var(--brand-1);}
.btn-ghost svg{transition:transform var(--ease);}
.btn-ghost:hover svg{transform:translateX(4px);}
.btn-sm{min-height:38px;padding:8px 16px;font-size:14px;}
.btn:focus-visible{outline:2px solid var(--brand-1);outline-offset:2px;}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  height:64px;
  background:rgba(8,13,24,.72);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.nav-inner{display:flex;align-items:center;gap:18px;height:64px;}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:10px;color:var(--brand-1);background:rgba(35,230,208,.10);border:1px solid var(--line-brand);}
.logo-txt{display:flex;flex-direction:column;line-height:1.15;}
.logo-txt strong{font-size:16px;font-weight:700;letter-spacing:.02em;color:var(--text-1);}
.logo-txt em{font-style:normal;font-size:13px;color:var(--text-3);letter-spacing:.06em;}
.logo:hover .logo-txt strong{color:var(--brand-1);}
.main-nav{display:none;align-items:center;gap:4px;margin-left:8px;flex:1 1 auto;}
.main-nav a{position:relative;display:inline-block;padding:8px 12px;font-size:14.5px;color:var(--text-2);border-radius:8px;white-space:nowrap;}
.main-nav a:hover{color:var(--text-1);background:rgba(150,190,255,.07);}
.main-nav a.is-active{color:var(--text-1);font-weight:600;}
.main-nav a.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;border-radius:2px;background:var(--brand-1);box-shadow:0 0 10px rgba(35,230,208,.7);}
.nav-right{display:flex;align-items:center;gap:10px;margin-left:auto;}
.search-wrap{position:relative;display:none;align-items:center;width:280px;}
.search-ico{position:absolute;left:12px;display:flex;color:var(--text-3);pointer-events:none;}
.cmd-search{
  width:100%;height:40px;padding:0 40px 0 36px;
  background:rgba(14,23,41,.85);color:var(--text-1);
  border:1px solid var(--line);border-radius:var(--radius-btn);
  font-size:14px;appearance:none;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.cmd-search::placeholder{color:var(--text-3);}
.cmd-search:focus{outline:none;border-color:rgba(35,230,208,.55);box-shadow:0 0 0 3px rgba(35,230,208,.14);}
.search-kbd{position:absolute;right:10px;display:flex;align-items:center;justify-content:center;width:20px;height:20px;border-radius:6px;font-size:11px;color:var(--text-3);border:1px solid var(--line);background:rgba(150,190,255,.06);}
.search-panel{
  position:absolute;top:48px;left:0;right:0;max-height:320px;overflow:auto;
  padding:14px;border-radius:var(--radius-card);
  background:rgba(12,20,36,.94);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.08);box-shadow:0 18px 40px -20px rgba(0,0,0,.85);
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity var(--ease),transform var(--ease),visibility var(--ease);
}
.search-wrap:focus-within .search-panel{opacity:1;visibility:visible;transform:translateY(0);}
.search-panel h5{margin:0 0 8px;font-size:12px;letter-spacing:.08em;color:var(--text-3);font-weight:600;}
.search-panel h5:not(:first-child){margin-top:14px;}
.search-panel li a{display:block;padding:7px 8px;border-radius:8px;font-size:14px;color:var(--text-2);}
.search-panel li a:hover{background:rgba(35,230,208,.10);color:var(--brand-1);}
.icon-btn{
  position:relative;display:none;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:var(--radius-btn);
  background:rgba(14,23,41,.85);border:1px solid var(--line);color:var(--text-2);cursor:pointer;
  transition:color var(--ease),border-color var(--ease),transform var(--ease);
}
.icon-btn:hover{color:var(--brand-1);border-color:var(--line-brand);transform:translateY(-2px);}
.icon-btn::after{
  content:attr(data-tip);position:absolute;top:46px;left:50%;transform:translateX(-50%);
  padding:4px 8px;border-radius:6px;font-size:12px;white-space:nowrap;color:var(--text-1);
  background:rgba(14,23,41,.96);border:1px solid var(--line);opacity:0;pointer-events:none;transition:opacity var(--ease);
}
.icon-btn:hover::after{opacity:1;}
.nav-cta{display:none;}
.burger{display:flex;}
@media(min-width:900px){
  .main-nav{display:flex;}
  .search-wrap{display:flex;}
  .icon-btn{display:flex;}
  .nav-cta{display:inline-flex;}
  .burger{display:none;}
}
.drawer-mask{position:fixed;inset:0;background:rgba(3,7,14,.6);opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);z-index:80;}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:84vw;max-width:360px;z-index:90;
  padding:22px 20px calc(28px + env(safe-area-inset-bottom));
  background:#0B1424;border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform 240ms ease-out;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-head strong{font-size:15px;letter-spacing:.04em;}
.drawer-nav{display:flex;flex-direction:column;gap:2px;margin-bottom:18px;}
.drawer-nav a{padding:12px 10px;border-radius:10px;font-size:15px;color:var(--text-2);border:1px solid transparent;}
.drawer-nav a:hover,.drawer-nav a.is-active{background:rgba(35,230,208,.09);border-color:var(--line-brand);color:var(--brand-1);}
.drawer .cmd-search{width:100%;margin-bottom:16px;position:static;}
body.no-scroll{overflow:hidden;}

/* ---------- page head ---------- */
.page-wrap{position:relative;z-index:2;padding:34px 0 0;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;letter-spacing:.04em;color:var(--text-3);margin-bottom:22px;}
.crumb a{color:var(--text-3);}
.crumb a:hover{color:var(--brand-1);}
.crumb span.sep{opacity:.5;}
.crumb .cur{color:var(--text-2);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.section-tag{
  display:inline-flex;align-items:center;gap:8px;height:26px;padding:0 12px;border-radius:999px;
  font-size:13px;letter-spacing:.06em;color:var(--brand-1);background:rgba(35,230,208,.10);border:1px solid var(--line-brand);
}
.section-tag.warm{color:var(--brand-2);background:rgba(255,122,52,.10);border-color:rgba(255,122,52,.24);}

/* ---------- article head ---------- */
.article-head{padding-bottom:30px;border-bottom:1px solid var(--line);}
.article-head h1{font-size:clamp(28px,4.4vw,46px);font-weight:700;line-height:1.2;letter-spacing:-.01em;margin:16px 0 0;max-width:22ch;}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;margin-top:20px;font-size:13px;letter-spacing:.05em;color:var(--text-3);}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--text-3);opacity:.7;}
.article-cover{margin-top:28px;border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--line);aspect-ratio:16/7;background:linear-gradient(120deg,rgba(35,230,208,.14),rgba(47,107,255,.16));}
.article-cover img{width:100%;height:100%;object-fit:cover;opacity:.92;}

/* ---------- layout ---------- */
.layout{display:grid;grid-template-columns:1fr;gap:34px;padding:44px 0 0;}
@media(min-width:1024px){
  .layout{grid-template-columns:minmax(0,760px) 280px;gap:48px;justify-content:center;}
}
.article-body{max-width:760px;font-size:16.8px;line-height:1.9;color:var(--text-1);word-break:break-word;}
.article-body p{margin:0 0 1.25em;color:#D8E4F7;}
.article-body h2{
  position:relative;margin:2.2em 0 .9em;padding-left:16px;
  font-size:clamp(22px,2.6vw,29px);font-weight:600;line-height:1.35;color:var(--text-1);
}
.article-body h2::before{content:"";position:absolute;left:0;top:.28em;width:3px;height:1em;border-radius:2px;background:var(--brand-1);box-shadow:0 0 12px rgba(35,230,208,.7);}
.article-body h3{margin:1.8em 0 .7em;font-size:20px;font-weight:600;color:var(--text-1);}
.article-body h4{margin:1.6em 0 .6em;font-size:17px;font-weight:600;color:var(--text-2);}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:1.4em;}
.article-body ul{list-style:none;}
.article-body ul li{position:relative;padding-left:18px;margin-bottom:.55em;color:#D8E4F7;}
.article-body ul li::before{content:"";position:absolute;left:2px;top:.68em;width:6px;height:6px;border-radius:2px;background:var(--brand-2);}
.article-body ol{list-style:decimal;}
.article-body ol li{margin-bottom:.55em;color:#D8E4F7;}
.article-body ol li::marker{color:var(--brand-2);font-weight:700;}
.article-body blockquote{
  margin:1.6em 0;padding:16px 20px;border-left:3px solid var(--brand-1);
  background:var(--bg-elev-1);border-radius:0 var(--radius-card) var(--radius-card) 0;color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--radius-img);margin:1.6em 0 .6em;width:100%;}
.article-body figure{margin:1.8em 0;}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;letter-spacing:.04em;}
.article-body a{color:var(--brand-1);text-decoration:underline;text-underline-offset:3px;text-decoration-color:rgba(35,230,208,.5);}
.article-body a:hover{text-decoration-color:var(--brand-1);}
.article-body table{width:100%;border-collapse:collapse;margin:1.8em 0;font-size:15px;display:block;overflow-x:auto;}
.article-body table th,.article-body table td{padding:11px 14px;border:1px solid var(--line);text-align:left;}
.article-body table th{background:var(--bg-elev-2);color:var(--text-1);font-weight:600;white-space:nowrap;}
.article-body table tr:nth-child(even) td{background:rgba(19,30,51,.55);}
.article-body code{font-family:Inter,ui-monospace,monospace;font-size:.92em;padding:2px 6px;border-radius:6px;background:var(--bg-elev-2);color:var(--brand-1);}
.article-body hr{border:0;height:1px;background:var(--line);margin:2.4em 0;}

/* ---------- sidebar ---------- */
.side{display:none;}
@media(min-width:1024px){
  .side{display:block;position:sticky;top:88px;align-self:start;display:flex;flex-direction:column;gap:18px;}
}
.side-card{background:var(--bg-elev-1);border:1px solid var(--line);border-radius:var(--radius-card);padding:18px;box-shadow:var(--shadow-card);}
.side-card h4{font-size:13px;letter-spacing:.08em;color:var(--text-3);margin-bottom:12px;font-weight:600;}
.side-list li+li{margin-top:2px;}
.side-list a{display:flex;align-items:flex-start;gap:8px;padding:8px 10px;border-radius:8px;font-size:14px;color:var(--text-2);border-left:2px solid transparent;}
.side-list a:hover{background:rgba(35,230,208,.08);color:var(--brand-1);border-left-color:var(--brand-1);}
.side-list a span{color:var(--brand-2);font-size:12px;letter-spacing:.06em;padding-top:2px;}
.side-note{font-size:13.5px;color:var(--text-3);line-height:1.75;}

/* ---------- article foot ---------- */
.article-foot{margin-top:44px;padding-top:26px;border-top:1px solid var(--line);}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:26px;}
.chip{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;font-size:13px;letter-spacing:.04em;color:var(--brand-1);background:rgba(35,230,208,.09);border:1px solid var(--line-brand);}
.chip.warm{color:var(--brand-2);background:rgba(255,122,52,.10);border-color:rgba(255,122,52,.24);}
.pn-grid{display:grid;grid-template-columns:1fr;gap:14px;margin-bottom:26px;}
@media(min-width:640px){.pn-grid{grid-template-columns:1fr 1fr;}}
.pn-card{display:block;padding:16px 18px;border-radius:var(--radius-card);background:var(--bg-elev-1);border:1px solid var(--line);transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);}
.pn-card:hover{transform:translateY(-2px);border-color:var(--line-brand);box-shadow:var(--shadow-card);}
.pn-card small{display:block;font-size:12px;letter-spacing:.08em;color:var(--text-3);margin-bottom:6px;}
.pn-card strong{display:block;font-size:15.5px;font-weight:600;color:var(--text-1);line-height:1.5;}

/* ---------- related ---------- */
.related{padding:64px 0 0;}
.related-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:26px;}
.related-head h2{font-size:clamp(20px,2.2vw,26px);}
.card-grid{display:grid;grid-template-columns:1fr;gap:22px;}
@media(min-width:640px){.card-grid{grid-template-columns:1fr 1fr;}}
@media(min-width:1024px){.card-grid{grid-template-columns:repeat(3,1fr);}}
.card{display:flex;flex-direction:column;background:var(--bg-elev-1);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-card);transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);}
.card:hover{transform:translateY(-2px);border-color:var(--line-brand);}
.card-thumb{aspect-ratio:16/9;background:linear-gradient(120deg,rgba(35,230,208,.14),rgba(47,107,255,.16));overflow:hidden;}
.card-thumb img{width:100%;height:100%;object-fit:cover;}
.card-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:17px;line-height:1.5;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-body p{font-size:14.5px;color:var(--text-2);line-height:1.75;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:auto;font-size:13px;color:var(--text-3);}
.card:hover .card-body h3{color:var(--brand-1);}

/* ---------- empty state ---------- */
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  min-height:260px;padding:34px 22px;text-align:center;
  background:var(--bg-elev-1);border:1px solid var(--line);border-radius:var(--radius-card);
}
.empty-state svg{color:var(--brand-1);opacity:.9;}
.empty-state h3{font-size:19px;}
.empty-state p{max-width:44ch;color:var(--text-2);font-size:15px;margin:0;}

/* ---------- CTA ---------- */
.cta-panel{
  margin:72px 0 0;padding:40px 30px;border-radius:18px;text-align:center;
  background:linear-gradient(135deg,rgba(35,230,208,.10),rgba(47,107,255,.12));
  border:1px solid var(--line-brand);box-shadow:var(--shadow-card);
}
.cta-panel h2{font-size:clamp(22px,2.8vw,32px);margin-bottom:12px;}
.cta-panel p{max-width:52ch;margin:0 auto 24px;color:var(--text-2);font-size:15.5px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;}

/* ---------- footer ---------- */
.site-footer{margin-top:88px;border-top:1px solid var(--line);background:#080E1B;position:relative;z-index:2;}
.site-footer::before{content:"";position:absolute;top:-1px;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(35,230,208,.55),transparent);}
.footer-grid{display:grid;grid-template-columns:1fr;gap:30px;padding:52px 0 34px;}
@media(min-width:640px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media(min-width:1024px){.footer-grid{grid-template-columns:repeat(4,1fr);gap:34px;}}
.f-col h4{font-size:13px;letter-spacing:.08em;color:var(--text-3);margin-bottom:14px;font-weight:600;}
.f-col ul li{margin-bottom:2px;}
.f-col ul a{display:inline-block;font-size:14.5px;color:var(--text-2);line-height:2.2;transition:color var(--ease),transform var(--ease);}
.f-col ul a:hover{color:var(--brand-1);transform:translateX(-2px);}
.f-col p{font-size:14px;color:var(--text-3);line-height:1.8;}
.inline-form{display:flex;gap:10px;flex-wrap:wrap;}
.inline-form input{
  flex:1 1 180px;height:44px;padding:0 14px;border-radius:var(--radius-btn);
  background:var(--bg-elev-1);border:1px solid var(--line);color:var(--text-1);font-size:14px;appearance:none;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.inline-form input::placeholder{color:var(--text-3);}
.inline-form input:focus{outline:none;border-color:rgba(35,230,208,.55);box-shadow:0 0 0 3px rgba(35,230,208,.14);}
.form-hint{font-size:13px;color:var(--text-3);margin-top:8px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px 20px;justify-content:space-between;align-items:center;
  padding:18px 0 26px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3);
}

/* ---------- sticky bar (article low-key) ---------- */
.sticky-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  display:flex;align-items:center;gap:14px;
  height:56px;padding:0 16px calc(0px + env(safe-area-inset-bottom));
  background:rgba(10,17,31,.86);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-top:1px solid rgba(35,230,208,.28);
  transform:translateY(110%);transition:transform 240ms ease-out;
}
.sticky-bar.is-show{transform:translateY(0);}
.sticky-bar span{font-size:13.5px;color:var(--text-2);flex:1 1 auto;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.sticky-bar .bar-close{background:transparent;border:1px solid var(--line);color:var(--text-3);width:34px;height:34px;border-radius:9px;cursor:pointer;display:flex;align-items:center;justify-content:center;}
.sticky-bar .bar-close:hover{color:var(--text-1);border-color:var(--line-brand);}
@media(min-width:640px){
  .sticky-bar{height:64px;padding:0 28px;}
  .sticky-bar span{font-size:14.5px;}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
}

/* roulang page: category1 */
:root{
  --bg-base:#060A14;
  --bg-grad-b:#0A1222;
  --bg-elev-1:#0E1729;
  --bg-elev-2:#131E33;
  --brand-1:#23E6D0;
  --brand-2:#FF7A34;
  --brand-3:#2F6BFF;
  --txt-1:#EAF2FF;
  --txt-2:#9FB0CC;
  --txt-3:#6B7C99;
  --line:rgba(150,190,255,.12);
  --line-brand:rgba(35,230,208,.20);
  --ok:#3DDC97;
  --warn:#FFC53D;
  --err:#FF5C6C;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh-card:0 12px 32px -16px rgba(0,0,0,.7);
  --sh-glow:0 0 0 1px rgba(35,230,208,.55), 0 10px 26px -8px rgba(35,230,208,.45);
  --tr:200ms ease-out;
  --cjk:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  --num:"Inter","DIN Alternate",Bahnschrift,system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--cjk);
  font-size:16px;
  line-height:1.8;
  color:var(--txt-1);
  background:linear-gradient(180deg,var(--bg-base) 0%,var(--bg-grad-b) 100%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:linear-gradient(rgba(150,190,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(150,190,255,.06) 1px,transparent 1px);
  background-size:32px 32px;
  opacity:.5;
}
body::after{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(560px 420px at 8% -6%,rgba(35,230,208,.10),transparent 70%),
    radial-gradient(620px 460px at 100% 108%,rgba(47,107,255,.14),transparent 72%);
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color var(--tr)}
a:hover{color:var(--brand-1)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5{margin:0;font-weight:600;line-height:1.3;color:var(--txt-1)}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
button,input{font-family:inherit;font-size:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--brand-1);outline-offset:2px;border-radius:6px}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}
.container{width:100%;max-width:1200px;margin:0 auto;padding-inline:20px;position:relative;z-index:1}
@media(min-width:640px){.container{padding-inline:24px}}
@media(min-width:1200px){.container{padding-inline:32px}}
.section{padding-block:56px;position:relative;z-index:1}
@media(min-width:640px){.section{padding-block:72px}}
@media(min-width:900px){.section{padding-block:96px}}

/* ---------- 按钮体系 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:transform var(--tr),box-shadow var(--tr),background var(--tr),border-color var(--tr),color var(--tr);
  white-space:nowrap;
}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px;border-radius:9px}
.btn-glow{
  background:var(--brand-1);color:#04120F;
  box-shadow:var(--sh-glow);
}
.btn-glow:hover{transform:translateY(-2px);color:#04120F;box-shadow:0 0 0 1px rgba(35,230,208,.8),0 14px 30px -8px rgba(35,230,208,.62)}
.btn-glow:active{transform:translateY(1px)}
.btn-line{
  background:transparent;color:var(--brand-1);border-color:rgba(35,230,208,.5);
}
.btn-line:hover{background:rgba(35,230,208,.12);color:var(--brand-1);transform:translateY(-2px)}
.btn-line:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:var(--txt-2);padding:0 6px;min-height:auto}
.btn-ghost:hover{color:var(--brand-1)}
.btn-ghost .arw{display:inline-block;transition:transform var(--tr)}
.btn-ghost:hover .arw{transform:translateX(4px)}
.icon-btn{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line);border-radius:10px;color:var(--txt-2);
  position:relative;transition:var(--tr);
}
.icon-btn:hover{color:var(--brand-1);border-color:var(--line-brand);background:rgba(35,230,208,.07)}
.icon-btn::after{
  content:attr(data-tip);position:absolute;top:calc(100% + 8px);left:50%;transform:translateX(-50%) translateY(-4px);
  background:#0B1424;border:1px solid var(--line);color:var(--txt-1);
  font-size:12px;line-height:1;padding:6px 9px;border-radius:6px;white-space:nowrap;
  opacity:0;pointer-events:none;transition:opacity var(--tr),transform var(--tr);
}
.icon-btn:hover::after{opacity:1;transform:translateX(-50%) translateY(0)}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(6,10,20,.74);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.nav-inner{display:flex;align-items:center;gap:20px;height:64px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{color:var(--brand-1);display:inline-flex;filter:drop-shadow(0 0 8px rgba(35,230,208,.45))}
.logo-txt{display:flex;flex-direction:column;line-height:1.15}
.logo-txt strong{font-size:17px;font-weight:700;letter-spacing:.02em;color:var(--txt-1)}
.logo-txt em{font-style:normal;font-size:12px;color:var(--txt-3);letter-spacing:.04em}
.logo:hover .logo-txt strong{color:var(--brand-1)}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px}
.main-nav a{
  position:relative;padding:8px 12px;font-size:14px;color:var(--txt-2);border-radius:8px;
  transition:color var(--tr),background var(--tr),transform var(--tr);
}
.main-nav a:hover{color:var(--txt-1);background:rgba(35,230,208,.07)}
.main-nav a.is-active{color:var(--txt-1);transform:translateY(-1px)}
.main-nav a.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;border-radius:2px;
  background:var(--brand-1);box-shadow:0 0 10px rgba(35,230,208,.6);
}
.nav-right{display:flex;align-items:center;gap:10px;margin-left:auto}
.nav-cta{display:inline-flex}
.search-wrap{position:relative;width:262px}
.search-ico{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--txt-3);display:flex;pointer-events:none}
.cmd-search{
  width:100%;height:40px;padding:0 36px 0 34px;
  background:var(--bg-elev-1);border:1px solid var(--line);border-radius:10px;
  color:var(--txt-1);font-size:14px;outline:none;transition:var(--tr);
  appearance:none;-webkit-appearance:none;
}
.cmd-search::placeholder{color:var(--txt-3)}
.cmd-search:focus{border-color:var(--line-brand);background:#101C31;box-shadow:0 0 0 3px rgba(35,230,208,.12)}
.search-kbd{
  position:absolute;right:10px;top:50%;transform:translateY(-50%);
  font-family:var(--num);font-size:12px;color:var(--txt-3);
  border:1px solid var(--line);border-radius:6px;padding:1px 6px;background:rgba(255,255,255,.02);
}
.search-panel{
  position:absolute;top:calc(100% + 10px);left:0;right:0;
  background:rgba(12,20,34,.92);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);border-radius:12px;box-shadow:var(--sh-card);
  padding:14px;max-height:320px;overflow-y:auto;
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity var(--tr),transform var(--tr),visibility var(--tr);
  z-index:70;
}
.search-wrap:focus-within .search-panel{opacity:1;visibility:visible;transform:translateY(0)}
.search-panel h5{font-size:12px;letter-spacing:.1em;color:var(--txt-3);margin:0 0 8px;text-transform:uppercase}
.search-panel ul{margin-bottom:12px}
.search-panel ul:last-child{margin-bottom:0}
.search-panel li a{display:block;padding:7px 8px;border-radius:8px;font-size:14px;color:var(--txt-2)}
.search-panel li a:hover{background:rgba(35,230,208,.08);color:var(--brand-1)}
.nav-burger{display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:10px;background:transparent;position:relative}
.nav-burger span{position:absolute;left:11px;right:11px;height:2px;background:var(--txt-2);border-radius:2px;transition:var(--tr)}
.nav-burger span:nth-child(1){top:14px}
.nav-burger span:nth-child(2){top:19px}
.nav-burger span:nth-child(3){top:24px}

/* ---------- 抽屉 ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(3,7,14,.66);opacity:0;visibility:hidden;transition:var(--tr);z-index:80}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:84vw;max-width:380px;z-index:90;
  background:#0A1222;border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform 260ms ease-out;
  padding:20px;overflow-y:auto;display:flex;flex-direction:column;gap:18px;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-nav{display:flex;flex-direction:column;gap:2px}
.drawer-nav a{padding:12px 10px;border-radius:10px;font-size:15px;color:var(--txt-2);border-left:2px solid transparent}
.drawer-nav a:hover{background:rgba(35,230,208,.08);color:var(--brand-1)}
.drawer-nav a.is-active{color:var(--brand-1);border-left-color:var(--brand-1);background:rgba(35,230,208,.08)}
.drawer-search{width:100%;height:44px;padding:0 14px;background:var(--bg-elev-1);border:1px solid var(--line);border-radius:10px;color:var(--txt-1);outline:none}
.drawer-search:focus{border-color:var(--line-brand)}

/* ---------- 分类页头 ---------- */
.cat-hero{
  position:relative;overflow:hidden;
  border-bottom:1px solid var(--line);
  background-image:
    linear-gradient(90deg,rgba(6,10,20,.94) 0%,rgba(6,10,20,.78) 48%,rgba(6,10,20,.92) 100%),
    url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.cat-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:120px;
  background:linear-gradient(180deg,transparent,rgba(6,10,20,.9));
  pointer-events:none;
}
.cat-hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.6fr .9fr;gap:32px;align-items:center;
  padding-block:60px;
}
@media(min-width:900px){.cat-hero-inner{padding-block:76px}}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--txt-3);letter-spacing:.04em;margin-bottom:14px}
.crumb a{color:var(--txt-2)}
.crumb span.sep{color:var(--txt-3);opacity:.6}
.crumb .now{color:var(--brand-1)}
.cat-hero h1{font-size:clamp(28px,4.4vw,46px);font-weight:700;line-height:1.18;letter-spacing:-.01em}
.cat-hero .lead{margin-top:16px;max-width:600px;color:var(--txt-2);font-size:16px}
.hero-side{
  background:var(--bg-elev-1);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-card);
}
.hero-side h3{font-size:17px;margin-bottom:10px}
.hero-side p{font-size:14px;color:var(--txt-2);margin-bottom:16px}
.hero-stats{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:18px}
.hero-stats b{display:block;font-family:var(--num);font-size:26px;font-variant-numeric:tabular-nums;color:var(--brand-1);line-height:1.1}
.hero-stats em{font-style:normal;font-size:13px;color:var(--txt-3)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:13px;
  background:rgba(35,230,208,.10);color:var(--brand-1);border:1px solid rgba(35,230,208,.22);
}
.chip--orange{background:rgba(255,122,52,.12);color:var(--brand-2);border-color:rgba(255,122,52,.26)}

/* ---------- 主体布局 ---------- */
.cat-layout{display:grid;grid-template-columns:240px 1fr;gap:34px;align-items:start}
.side-nav{position:sticky;top:88px;background:var(--bg-elev-1);border:1px solid var(--line);border-radius:var(--r-card);padding:18px;box-shadow:var(--sh-card)}
.side-nav h3{font-size:12px;letter-spacing:.14em;color:var(--txt-3);margin:0 0 10px;font-weight:600}
.side-group + .side-group{margin-top:20px}
.side-nav a{display:block;padding:8px 12px;font-size:14px;color:var(--txt-2);border-left:2px solid transparent;border-radius:0 8px 8px 0;transition:var(--tr)}
.side-nav a:hover{color:var(--txt-1);background:rgba(35,230,208,.06)}
.side-nav a.is-current{color:var(--brand-1);border-left-color:var(--brand-1);background:rgba(35,230,208,.08)}
.side-tip{margin-top:20px;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--txt-3);line-height:1.7}

.group-block{margin-bottom:44px;scroll-margin-top:88px}
.group-block:last-child{margin-bottom:0}
.group-head{display:flex;align-items:flex-start;gap:14px;margin-bottom:22px}
.group-head .bar{width:3px;align-self:stretch;min-height:34px;border-radius:2px;background:linear-gradient(180deg,var(--brand-1),rgba(35,230,208,.15))}
.group-head h2{font-size:clamp(22px,2.6vw,30px);font-weight:600;letter-spacing:-.005em}
.group-head p{font-size:14px;color:var(--txt-3);margin-top:6px}

.entry-list{display:flex;flex-direction:column;gap:12px}
.entry-row{
  display:grid;grid-template-columns:56px 1fr auto;gap:18px;align-items:center;
  padding:18px 22px;background:var(--bg-elev-1);
  border:1px solid var(--line);border-radius:var(--r-card);
  transition:transform var(--tr),border-color var(--tr),background var(--tr);
}
.entry-row:hover{transform:translateY(-2px);border-color:var(--line-brand);background:var(--bg-elev-2)}
.entry-num{
  font-family:var(--num);font-size:20px;font-variant-numeric:tabular-nums;
  color:var(--brand-2);letter-spacing:.02em;
}
.entry-body h3{font-size:17px;margin-bottom:4px}
.entry-body p{font-size:14px;color:var(--txt-2);margin:0}
.entry-link{font-size:14px;color:var(--brand-1);white-space:nowrap}
.entry-link .arw{display:inline-block;transition:transform var(--tr)}
.entry-row:hover .entry-link .arw{transform:translateX(4px)}
.divider-skew{
  height:1px;border:0;margin:0;
  background:linear-gradient(90deg,transparent,rgba(35,230,208,.45),rgba(47,107,255,.35),transparent);
  transform:skewY(-1.2deg);
}
.figure-block{margin:34px 0}
.figure-block img{border-radius:var(--r-img);border:1px solid var(--line);width:100%;aspect-ratio:16/9;object-fit:cover;background:linear-gradient(135deg,rgba(35,230,208,.16),rgba(47,107,255,.12))}
.figure-block figcaption{font-size:13px;color:var(--txt-3);margin-top:10px}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-acc{border:0;background:transparent;margin:0}
.faq-acc .accordion-item{
  border:1px solid var(--line);background:var(--bg-elev-1);
  border-radius:var(--r-card);margin-bottom:12px;overflow:hidden;
  transition:border-color var(--tr),background var(--tr);
}
.faq-acc .accordion-item:hover{border-color:var(--line-brand)}
.faq-acc .accordion-item.is-active{background:var(--bg-elev-2);border-color:var(--line-brand)}
.faq-acc .accordion-title{
  position:relative;display:block;padding:18px 54px 18px 22px;
  font-size:17px;font-weight:600;color:var(--txt-1);
  background:transparent;border:0;line-height:1.5;
}
.faq-acc .accordion-title:hover{background:transparent;color:var(--txt-1)}
.faq-acc .accordion-title::before{
  content:"";position:absolute;right:27px;top:50%;width:2px;height:14px;margin-top:-7px;
  background:var(--brand-1);border-radius:2px;transition:transform var(--tr),opacity var(--tr);
}
.faq-acc .accordion-title::after{
  content:"";position:absolute;right:21px;top:50%;width:14px;height:2px;margin-top:-1px;
  background:var(--brand-1);border-radius:2px;
}
.faq-acc .accordion-item.is-active .accordion-title::before{transform:rotate(90deg);opacity:0}
.faq-acc .accordion-content{
  padding:0 22px 20px;border:0;background:transparent;
  color:var(--txt-2);font-size:15px;line-height:1.8;
}
.faq-acc .accordion-content p{margin-bottom:.6em}

/* ---------- CTA 面板 ---------- */
.cta-panel{
  background:linear-gradient(135deg,var(--bg-elev-2) 0%,var(--bg-elev-1) 100%);
  border:1px solid var(--line-brand);border-radius:18px;
  padding:36px;display:grid;grid-template-columns:1.5fr 1fr;gap:28px;align-items:center;
  box-shadow:var(--sh-card);position:relative;overflow:hidden;
}
.cta-panel::before{
  content:"";position:absolute;right:-70px;top:-70px;width:240px;height:240px;border-radius:50%;
  background:radial-gradient(circle,rgba(35,230,208,.16),transparent 70%);
}
.cta-panel h2{font-size:clamp(22px,2.8vw,32px);margin-bottom:12px}
.cta-panel p{color:var(--txt-2);font-size:15px;max-width:640px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;justify-content:flex-end}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:40px;position:relative;z-index:1;
  background:#080E1B;border-top:1px solid var(--line);
  box-shadow:0 -1px 0 rgba(35,230,208,.22);
  padding-block:56px 24px;
}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;padding-bottom:34px;border-bottom:1px solid var(--line)}
.f-col h4{font-size:13px;letter-spacing:.08em;color:var(--txt-1);margin-bottom:14px;font-weight:600}
.f-col ul li{margin-bottom:10px}
.f-col ul li a{font-size:14px;color:var(--txt-2);display:inline-block;transition:var(--tr)}
.f-col ul li a:hover{color:var(--brand-1);transform:translateX(2px)}
.f-col p{font-size:14px;color:var(--txt-3);line-height:1.75}
.inline-form{display:flex;gap:8px}
.inline-form input{
  flex:1;min-width:0;height:44px;padding:0 14px;background:var(--bg-elev-1);
  border:1px solid var(--line);border-radius:var(--r-btn);color:var(--txt-1);outline:none;
  transition:var(--tr);font-size:14px;appearance:none;-webkit-appearance:none;
}
.inline-form input::placeholder{color:var(--txt-3)}
.inline-form input:focus{border-color:var(--line-brand);box-shadow:0 0 0 3px rgba(35,230,208,.12)}
.form-hint{font-size:13px;color:var(--txt-3);margin-top:8px}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;
  padding-top:20px;font-size:13px;color:var(--txt-3);
}

/* ---------- 底部固定转化条 ---------- */
.float-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:rgba(10,17,30,.84);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-top:1px solid rgba(35,230,208,.30);
  box-shadow:0 -10px 30px -18px rgba(0,0,0,.9);
  transform:translateY(102%);transition:transform 260ms ease-out;
  padding-bottom:env(safe-area-inset-bottom);
}
.float-bar.is-visible{transform:translateY(0)}
.float-inner{display:flex;align-items:center;gap:18px;min-height:64px;padding-block:10px}
.float-txt{font-size:14px;color:var(--txt-2);margin:0;flex:1}
.float-txt strong{color:var(--txt-1);font-weight:600}
.float-actions{display:flex;align-items:center;gap:14px}
.float-link{font-size:14px;color:var(--txt-2)}
.float-link:hover{color:var(--brand-1)}
.float-close{
  width:32px;height:32px;border-radius:8px;border:1px solid var(--line);background:transparent;
  color:var(--txt-3);font-size:18px;line-height:1;display:inline-flex;align-items:center;justify-content:center;
  transition:var(--tr);
}
.float-close:hover{color:var(--txt-1);border-color:var(--line-brand)}
body.has-float{padding-bottom:64px}

/* ---------- 响应式 ---------- */
@media(max-width:1199px){
  .search-wrap{width:220px}
}
@media(max-width:1023px){
  .main-nav{display:none}
  .nav-burger{display:inline-flex}
  .nav-cta{display:none}
  .cat-hero-inner{grid-template-columns:1fr;gap:24px}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:26px}
}
@media(max-width:899px){
  .cat-layout{grid-template-columns:1fr;gap:26px}
  .side-nav{position:static;padding:16px}
  .side-nav h3{margin-top:6px}
  .side-nav a{
    display:inline-block;border-left:0;border:1px solid var(--line);
    border-radius:999px;padding:7px 14px;margin:0 8px 8px 0;white-space:nowrap;
  }
  .side-nav a.is-current{border-color:var(--brand-1);background:rgba(35,230,208,.10)}
  .entry-row{grid-template-columns:44px 1fr;gap:14px;padding:16px 18px}
  .entry-row .entry-link{grid-column:2;text-align:left}
  .cta-panel{grid-template-columns:1fr;padding:26px}
  .cta-actions{justify-content:flex-start}
  .float-link{display:none}
}
@media(max-width:639px){
  .nav-inner{height:60px;gap:12px}
  .search-wrap{display:none}
  .logo-txt em{display:none}
  .cat-hero-inner{padding-block:44px}
  .cat-hero .lead{font-size:15.5px}
  .hero-stats{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr;gap:22px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .float-inner{gap:12px;min-height:56px}
  .float-txt{font-size:13px}
  .float-actions{flex:0 0 42%}
  .float-actions .btn{width:100%}
}

/* roulang page: category2 */
/* ============ 1. 设计变量 ============ */
:root{
  --bg-base:#060A14;
  --bg-elev-1:#0E1729;
  --bg-elev-2:#131E33;
  --brand-1:#23E6D0;
  --brand-2:#FF7A34;
  --brand-3:#2F6BFF;
  --txt:#EAF2FF;
  --txt-2:#9FB0CC;
  --txt-3:#6B7C99;
  --line:rgba(150,190,255,.12);
  --line-brand:rgba(35,230,208,.20);
  --ok:#3DDC97;
  --warn:#FFC53D;
  --err:#FF5C6C;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh-card:0 12px 32px -16px rgba(0,0,0,.7);
  --sh-glow:0 0 0 1px rgba(35,230,208,.55),0 10px 26px -8px rgba(35,230,208,.45);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  --font-num:Inter,"DIN Alternate",Bahnschrift,system-ui,sans-serif;
  --pad:32px;
  --sec:96px;
}

/* ============ 2. 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--txt);
  background:linear-gradient(180deg,#060A14 0%,#0A1222 100%) fixed;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:linear-gradient(rgba(150,190,255,.06) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(150,190,255,.06) 1px,transparent 1px);
  background-size:32px 32px;
  -webkit-mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 78%);
  mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 78%);
}
body::after{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(560px 380px at 8% -6%,rgba(35,230,208,.10),transparent 62%),
    radial-gradient(620px 420px at 96% 8%,rgba(47,107,255,.14),transparent 65%);
}
h1,h2,h3,h4,h5,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
a{color:inherit;text-decoration:none;transition:color .2s ease-out,background .2s ease-out,transform .2s ease-out}
img{max-width:100%;height:auto;display:block;border:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand-1);outline-offset:2px;border-radius:4px}
::selection{background:rgba(35,230,208,.28);color:#04121A}
main,.site-header,.site-footer,.sticky-bar{position:relative;z-index:1}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 var(--pad)}
.sec{padding:var(--sec) 0}
.txt-2{color:var(--txt-2)}

/* ============ 3. 顶部命令栏 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(8,14,26,.78);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.16),transparent);
}
.nav-inner{display:flex;align-items:center;gap:18px;height:64px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:38px;height:38px;border-radius:10px;display:grid;place-items:center;
  color:var(--brand-1);
  background:linear-gradient(135deg,rgba(35,230,208,.16),rgba(47,107,255,.14));
  border:1px solid var(--line-brand);
  transition:box-shadow .2s ease-out;
}
.logo:hover .logo-mark{box-shadow:0 0 0 1px var(--line-brand),0 8px 22px -12px rgba(35,230,208,.7)}
.logo-txt{display:flex;flex-direction:column;line-height:1.2}
.logo-txt strong{font-size:17px;font-weight:700;letter-spacing:.04em;color:var(--txt)}
.logo-txt em{font-style:normal;font-size:12px;color:var(--txt-3);letter-spacing:.03em;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:6px}
.main-nav a{
  position:relative;padding:8px 12px;font-size:14.5px;color:var(--txt-2);border-radius:8px;
}
.main-nav a:hover{color:var(--txt);background:rgba(150,190,255,.07)}
.main-nav a.is-active{color:var(--txt)}
.main-nav a.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;border-radius:2px;
  background:var(--brand-1);box-shadow:0 0 12px rgba(35,230,208,.7);
}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:10px}
.search-wrap{position:relative;width:268px}
.cmd-search{
  width:100%;height:38px;padding:0 44px 0 34px;
  background:rgba(10,18,34,.72);
  border:1px solid var(--line);border-radius:10px;
  color:var(--txt);font-size:13.5px;font-family:inherit;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
  -webkit-appearance:none;appearance:none;
}
.cmd-search::placeholder{color:var(--txt-3)}
.cmd-search:focus{outline:none;border-color:var(--line-brand);box-shadow:0 0 0 3px rgba(35,230,208,.14)}
.search-ico{position:absolute;left:11px;top:50%;transform:translateY(-50%);color:var(--txt-3);display:grid;place-items:center}
.search-kbd{
  position:absolute;right:8px;top:50%;transform:translateY(-50%);
  font-size:11px;line-height:1;color:var(--txt-3);border:1px solid var(--line);
  padding:4px 6px;border-radius:6px;background:rgba(19,30,51,.9);
}
.search-panel{
  position:absolute;top:calc(100% + 8px);left:0;right:0;z-index:70;
  background:#0E1729;border:1px solid var(--line);border-radius:12px;
  padding:14px 16px;max-height:320px;overflow:auto;
  box-shadow:var(--sh-card);
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .2s ease-out,transform .2s ease-out,visibility .2s;
}
.search-wrap:focus-within .search-panel{opacity:1;visibility:visible;transform:none}
.search-panel h5{font-size:12px;letter-spacing:.08em;color:var(--txt-3);font-weight:500;margin:4px 0 8px}
.search-panel ul{margin-bottom:10px}
.search-panel li a{display:block;padding:7px 8px;border-radius:8px;font-size:14px;color:var(--txt-2)}
.search-panel li a:hover{background:rgba(35,230,208,.10);color:var(--brand-1)}
.icon-btn{
  position:relative;width:38px;height:38px;border-radius:10px;cursor:pointer;
  border:1px solid var(--line);background:transparent;color:var(--txt-2);
  display:grid;place-items:center;transition:color .2s,border-color .2s,transform .2s;
}
.icon-btn:hover{color:var(--brand-1);border-color:var(--line-brand);transform:translateY(-2px)}
.icon-btn[data-tip]::after{
  content:attr(data-tip);position:absolute;top:calc(100% + 8px);left:50%;transform:translateX(-50%) translateY(-4px);
  background:#0E1729;border:1px solid var(--line);color:var(--txt-2);
  font-size:12px;padding:5px 9px;border-radius:8px;white-space:nowrap;
  opacity:0;visibility:hidden;transition:.18s ease-out;pointer-events:none;
}
.icon-btn[data-tip]:hover::after{opacity:1;visibility:visible;transform:translateX(-50%)}
.menu-toggle{display:none}

/* ============ 4. 按钮体系 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background .2s ease-out,color .2s ease-out,border-color .2s ease-out;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--brand-1);color:#04121A;box-shadow:var(--sh-glow)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(35,230,208,.75),0 16px 34px -10px rgba(35,230,208,.62);color:#04121A}
.btn-line{background:transparent;border-color:var(--line-brand);color:var(--brand-1)}
.btn-line:hover{background:rgba(35,230,208,.12);transform:translateY(-2px);color:var(--brand-1)}
.btn-ghost{background:transparent;border:none;padding:0;height:auto;color:var(--txt-2);font-size:14.5px}
.btn-ghost svg{transition:transform .2s ease-out}
.btn-ghost:hover{color:var(--brand-1)}
.btn-ghost:hover svg{transform:translateX(4px)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.nav-cta{height:38px;padding:0 18px;font-size:14px}

/* ============ 5. 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;font-size:13px;letter-spacing:.06em;
  background:rgba(35,230,208,.12);color:var(--brand-1);border:1px solid var(--line-brand);
}
.badge--orange{background:rgba(255,122,52,.12);color:var(--brand-2);border-color:rgba(255,122,52,.28)}

/* ============ 6. 分类页横幅 ============ */
.cat-hero{
  position:relative;overflow:hidden;isolation:isolate;
  padding:84px 0 72px;
  background:url("/assets/images/backpic/back-2.png") center/cover no-repeat;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(100deg,rgba(6,10,20,.97) 0%,rgba(6,10,20,.86) 46%,rgba(6,10,20,.56) 100%);
}
.cat-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;z-index:-1;
  background:linear-gradient(90deg,transparent,var(--line-brand),transparent);
}
.hero-slash{
  position:absolute;top:-40px;right:-6%;width:52%;height:150%;z-index:-1;
  transform:skewX(-16deg);
  background:linear-gradient(90deg,rgba(35,230,208,.20),rgba(47,107,255,.10) 52%,transparent 88%);
  pointer-events:none;
}
.cat-hero__grid{
  display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,.85fr);
  gap:48px;align-items:end;
}
.cat-hero h1{
  font-size:clamp(32px,4.6vw,52px);font-weight:700;line-height:1.18;letter-spacing:-.01em;
  margin:18px 0 16px;max-width:16em;
}
.hero-sub{font-size:17px;color:var(--txt-2);max-width:34em;line-height:1.8}
.hero-act{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-float{
  position:relative;padding:22px;border-radius:var(--r-card);
  background:rgba(14,23,41,.62);
  border:1px solid rgba(255,255,255,.08);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:0 18px 44px -22px rgba(0,0,0,.9);
}
.hero-float::before{
  content:"";position:absolute;left:14px;right:14px;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.22),transparent);
}
.hero-float h2{font-size:14px;font-weight:600;color:var(--txt-2);letter-spacing:.06em}
.hero-float dl{display:grid;grid-template-columns:1fr 1fr;gap:14px 12px;margin:16px 0 18px}
.hero-float dt{font-family:var(--font-num);font-size:26px;font-weight:600;color:var(--brand-1);font-variant-numeric:tabular-nums;line-height:1.2}
.hero-float dd{margin:2px 0 0;font-size:13px;color:var(--txt-3);line-height:1.6}
.hero-float .btn{width:100%}

/* ============ 7. 图文交替流 ============ */
.flow{padding:var(--sec) 0}
.flow-row{
  position:relative;
  display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center;
  padding:56px 0;
}
.flow-row + .flow-row::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--line),transparent);
  transform:skewY(-1.2deg);
}
.flow-media{margin:0}
.flow-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-img);border:1px solid var(--line);
  box-shadow:var(--sh-card);
}
.flow-body{max-width:560px}
.flow-index{
  font-family:var(--font-num);font-size:13px;letter-spacing:.18em;
  color:var(--brand-2);font-variant-numeric:tabular-nums;
}
.flow-body h2{font-size:clamp(24px,3vw,32px);font-weight:600;line-height:1.32;margin:12px 0 14px}
.flow-body p{color:var(--txt-2);font-size:16px;line-height:1.85;margin-bottom:20px}
.tick-list li{
  position:relative;padding-left:22px;margin-bottom:10px;font-size:15.5px;color:var(--txt);
}
.tick-list li::before{
  content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:2px;
  background:var(--brand-1);box-shadow:0 0 10px rgba(35,230,208,.7);
}
.flow-body .btn-ghost{margin-top:22px}
.flow-row > .flow-media{order:2}
.flow-row:nth-child(even) > .flow-media{order:1}
.flow-row:nth-child(even) > .flow-body{order:2}

/* ============ 8. 板块标题 ============ */
.sec-head{max-width:760px;margin-bottom:44px}
.sec-head h2{
  position:relative;padding-left:16px;
  font-size:clamp(26px,3vw,36px);font-weight:600;line-height:1.3;letter-spacing:-.005em;
}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;border-radius:3px;
  background:var(--brand-1);box-shadow:0 0 14px rgba(35,230,208,.7);
}
.sec-head p{margin-top:14px;color:var(--txt-2);font-size:16px;max-width:40em}

/* ============ 9. 三步流程 ============ */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.step{
  position:relative;padding:28px 24px;border-radius:var(--r-card);
  background:var(--bg-elev-1);border:1px solid var(--line);
  box-shadow:var(--sh-card);transition:border-color .2s ease-out,transform .2s ease-out;
}
.step:hover{border-color:var(--line-brand);transform:translateY(-2px)}
.step-num{font-family:var(--font-num);font-size:28px;font-weight:600;color:var(--brand-2);font-variant-numeric:tabular-nums;line-height:1}
.step h3{font-size:19px;font-weight:600;margin:12px 0 8px}
.step p{font-size:15px;color:var(--txt-2);line-height:1.75}
.step::after{
  content:"";position:absolute;top:46px;right:-24px;width:24px;height:1px;
  background:linear-gradient(90deg,rgba(255,122,52,.6),rgba(255,122,52,.06));
}
.step:last-child::after{display:none}

/* ============ 10. 数据指标横条 ============ */
.metrics{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  margin-top:56px;padding:32px;border-radius:16px;
  background:var(--bg-elev-1);border:1px solid var(--line);
}
.metric{position:relative;padding-left:18px}
.metric::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:2px;border-radius:2px;
  background:linear-gradient(180deg,var(--brand-1),rgba(47,107,255,.35));
}
.metric-num{
  font-family:var(--font-num);font-size:clamp(28px,3.4vw,36px);font-weight:600;
  color:var(--txt);font-variant-numeric:tabular-nums;line-height:1.1;
}
.metric-num span{font-size:15px;color:var(--brand-1);margin-left:4px;font-family:var(--font-cn)}
.metric p{margin-top:8px;font-size:13.5px;color:var(--txt-3);line-height:1.7}

/* ============ 11. FAQ ============ */
.faq-wrap{max-width:820px;margin:0 auto}
.accordion.faq-acc{background:transparent;border:none;margin:0}
.faq-acc .accordion-item{border:none;border-bottom:1px solid var(--line);background:transparent}
.faq-acc .accordion-item:first-child{border-top:1px solid var(--line)}
.faq-acc .accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 2px;font-size:17px;font-weight:600;color:var(--txt);
  background:transparent;border:none;line-height:1.5;
  transition:color .2s ease-out;
}
.faq-acc .accordion-title::before{content:none;display:none}
.faq-acc .accordion-title:hover{color:var(--brand-1);background:transparent}
.faq-acc .accordion-title::after{
  content:"";flex:0 0 auto;width:14px;height:14px;
  background:
    linear-gradient(var(--brand-1),var(--brand-1)) center/14px 2px no-repeat,
    linear-gradient(var(--brand-1),var(--brand-1)) center/2px 14px no-repeat;
  transition:transform .2s ease-out;
}
.faq-acc .accordion-item.is-active .accordion-title::after{transform:rotate(45deg)}
.faq-acc .accordion-content{
  display:none;padding:0 2px 22px;border:none;background:transparent;
  color:var(--txt-2);font-size:15px;line-height:1.8;
}
.faq-acc .accordion-content.is-open{display:block}

/* ============ 12. CTA 面板 ============ */
.cta-panel{
  position:relative;overflow:hidden;text-align:center;
  padding:64px 40px;border-radius:18px;
  background:
    radial-gradient(560px 260px at 18% 0%,rgba(35,230,208,.13),transparent 62%),
    radial-gradient(520px 280px at 88% 100%,rgba(47,107,255,.14),transparent 62%),
    var(--bg-elev-1);
  border:1px solid var(--line-brand);
}
.cta-panel h2{font-size:clamp(24px,3vw,34px);font-weight:600;line-height:1.32}
.cta-panel p{margin:16px auto 30px;max-width:34em;color:var(--txt-2);font-size:16px}
.cta-panel .btn-row{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}

/* ============ 13. 页脚 ============ */
.site-footer{
  margin-top:var(--sec);
  background:#080D18;
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";display:block;height:1px;
  background:linear-gradient(90deg,transparent,var(--line-brand),transparent);
}
.footer-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:36px;
  padding:64px 0 40px;
}
.f-col h4{
  font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--txt-3);
  margin-bottom:18px;
}
.f-col ul li{margin-bottom:2px}
.f-col a{display:inline-block;font-size:14.5px;line-height:2.2;color:var(--txt-2)}
.f-col a:hover{color:var(--brand-1);transform:translateX(-2px)}
.f-col p{font-size:14px;color:var(--txt-2);line-height:1.8}
.inline-form{display:flex;gap:10px}
.inline-form input{
  flex:1 1 auto;min-width:0;height:38px;padding:0 14px;
  background:rgba(10,18,34,.8);border:1px solid var(--line);border-radius:var(--r-btn);
  color:var(--txt);font-size:14px;font-family:inherit;-webkit-appearance:none;appearance:none;
}
.inline-form input::placeholder{color:var(--txt-3)}
.inline-form input:focus{outline:none;border-color:var(--line-brand);box-shadow:0 0 0 3px rgba(35,230,208,.14)}
.form-hint{margin-top:10px;font-size:13px;color:var(--txt-3)}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:22px 0 30px;border-top:1px solid var(--line);
  font-size:13px;color:var(--txt-3);
}

/* ============ 14. 底部固定转化条 ============ */
.sticky-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:80;
  height:64px;
  background:rgba(10,16,30,.86);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-top:1px solid var(--line-brand);
  box-shadow:0 -12px 34px -22px rgba(35,230,208,.6);
  transform:translateY(120%);
  transition:transform .3s ease-out;
}
.sticky-bar.is-show{transform:none}
.sticky-inner{display:flex;align-items:center;gap:20px;height:64px}
.sticky-tip{font-size:14.5px;color:var(--txt-2)}
.sticky-tip strong{color:var(--txt);font-weight:600}
.sticky-act{margin-left:auto;display:flex;align-items:center;gap:16px}
.sticky-link{font-size:14px;color:var(--txt-2);text-decoration:underline;text-underline-offset:4px}
.sticky-link:hover{color:var(--brand-1)}
.sticky-close{
  width:34px;height:34px;border-radius:9px;cursor:pointer;
  border:1px solid var(--line);background:transparent;color:var(--txt-2);
  font-size:18px;line-height:1;display:grid;place-items:center;
}
.sticky-close:hover{color:var(--brand-1);border-color:var(--line-brand)}

/* ============ 15. 移动抽屉 ============ */
.drawer-mask{
  position:fixed;inset:0;z-index:90;background:rgba(3,6,12,.68);
  opacity:0;visibility:hidden;transition:opacity .25s ease-out,visibility .25s;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;z-index:95;
  width:84vw;max-width:360px;height:100%;
  padding:20px 22px calc(28px + env(safe-area-inset-bottom));
  background:#0A1222;border-left:1px solid var(--line);
  transform:translateX(100%);transition:transform .28s ease-out;
  overflow-y:auto;
}
.drawer.is-open{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-head span{font-size:13px;letter-spacing:.08em;color:var(--txt-3)}
.drawer-nav{display:flex;flex-direction:column;margin-bottom:20px}
.drawer-nav a{
  padding:13px 12px;border-radius:10px;font-size:15.5px;color:var(--txt-2);
  border:1px solid transparent;
}
.drawer-nav a:hover{background:rgba(150,190,255,.07);color:var(--txt)}
.drawer-nav a.is-active{color:var(--brand-1);border-color:var(--line-brand);background:rgba(35,230,208,.08)}
.drawer input{
  width:100%;height:44px;padding:0 14px;margin-bottom:16px;
  background:rgba(10,18,34,.85);border:1px solid var(--line);border-radius:var(--r-btn);
  color:var(--txt);font-size:14px;font-family:inherit;-webkit-appearance:none;appearance:none;
}
.drawer input::placeholder{color:var(--txt-3)}
.drawer input:focus{outline:none;border-color:var(--line-brand)}
.drawer-cta{width:100%}

/* ============ 16. 动效与无障碍 ============ */
@keyframes breathe{0%,100%{opacity:1}50%{opacity:.92}}
.btn-primary{animation:breathe 6s ease-in-out infinite}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}

/* ============ 17. 响应式 ============ */
@media (max-width:1199px){
  :root{--pad:28px;--sec:84px}
  .search-wrap{width:220px}
}
@media (max-width:1023px){
  :root{--sec:72px}
  .main-nav{display:none}
  .menu-toggle{display:grid}
  .cat-hero__grid{grid-template-columns:1fr;gap:36px;align-items:start}
  .hero-float{max-width:460px}
  .flow-row{gap:36px;padding:44px 0}
  .metrics{grid-template-columns:repeat(2,1fr);gap:20px 24px;padding:28px}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px}
}
@media (max-width:899px){
  .search-wrap{display:none}
  .steps{grid-template-columns:1fr;gap:16px}
  .step::after{display:none}
  .flow-row{grid-template-columns:1fr;gap:24px}
  .flow-row > .flow-media,
  .flow-row:nth-child(even) > .flow-media,
  .flow-row > .flow-body,
  .flow-row:nth-child(even) > .flow-body{order:0}
  .flow-body{max-width:none}
}
@media (max-width:767px){
  :root{--pad:20px;--sec:56px}
  .cat-hero{padding:56px 0 48px}
  .cat-hero h1{font-size:clamp(28px,7.4vw,36px)}
  .hero-sub{font-size:15.5px}
  .hero-act .btn{flex:1 1 100%}
  .sticky-inner{height:56px;gap:12px}
  .sticky-bar{height:56px;padding-bottom:env(safe-area-inset-bottom)}
  .sticky-tip{font-size:13.5px;flex:1 1 auto;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .sticky-link{display:none}
  .sticky-act .btn{flex:1 1 auto}
  .cta-panel{padding:44px 22px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:48px 0 32px}
  .metrics{grid-template-columns:repeat(2,1fr);padding:24px 20px;gap:18px}
  .metric-num{font-size:28px}
  .faq-acc .accordion-title{font-size:16px;padding:18px 2px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:519px){
  .nav-inner{height:58px;gap:12px}
  .logo-txt em{display:none}
  .icon-btn{width:36px;height:36px}
  .nav-cta{display:none}
  .metrics{grid-template-columns:1fr}
  .inline-form{flex-direction:column}
  .inline-form .btn{width:100%}
}