/* roulang page: index */
:root{
  --bg-0:#05070F;
  --bg-1:#0A0F1E;
  --bg-2:#101830;
  --bg-3:#16213C;
  --primary:#17E0C0;
  --primary-deep:#0E9C87;
  --primary-soft:rgba(23,224,192,.12);
  --secondary:#1FA2FF;
  --accent:#FF9E2C;
  --tx-1:#EAF2FF;
  --tx-2:#A3B6D4;
  --tx-3:#6C7E9C;
  --line:rgba(120,200,255,.14);
  --glass-bg:rgba(16,24,48,.55);
  --glass-brd:rgba(150,210,255,.18);
  --r-card:18px;
  --r-img:14px;
  --r-btn:12px;
  --r-input:12px;
  --sh-1:0 2px 10px rgba(0,0,0,.35);
  --sh-2:0 14px 36px rgba(3,8,20,.55);
  --sh-glow:0 10px 30px rgba(23,224,192,.28);
  --ease:180ms cubic-bezier(.22,.61,.36,1);
  --gap:24px;
  --sec:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","PingFang SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--tx-2);
  background:var(--bg-1);
  padding-bottom:88px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none;transition:color var(--ease),border-color var(--ease),background var(--ease)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5,h6{margin:0;color:var(--tx-1);font-weight:700;letter-spacing:-.01em;line-height:1.35}
p{margin:0}
table{border-collapse:collapse;width:100%}
input,textarea{font:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}
::selection{background:rgba(23,224,192,.28);color:#fff}
.num{font-family:Inter,"Segoe UI",Arial,sans-serif;font-feature-settings:"tnum";letter-spacing:-.02em}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media(min-width:1440px){.container{max-width:1280px}}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease),opacity var(--ease);
}
.btn i{font-size:13px}
.btn-primary{
  background:linear-gradient(135deg,#17E0C0 0%,#12B9A8 100%);
  color:#04120F;
  box-shadow:var(--sh-glow);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 14px 36px rgba(23,224,192,.38)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 16px rgba(23,224,192,.24)}
.btn-ghost{
  background:var(--glass-bg);
  border:1px solid var(--glass-brd);
  color:var(--tx-1);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{border-color:rgba(23,224,192,.55);color:#fff;transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-accent{
  background:linear-gradient(135deg,#FF9E2C 0%,#F07C12 100%);
  color:#241100;box-shadow:0 10px 26px rgba(255,158,44,.3);
}
.btn-accent:hover{filter:brightness(1.06);transform:translateY(-1px)}
.btn-accent:active{transform:translateY(1px)}
.btn-sm{height:40px;padding:0 16px;font-size:14px;border-radius:10px}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;color:var(--primary);
  font-size:14px;font-weight:600;padding:4px 2px;
}
.btn-link:hover{color:#7CF5E2;gap:10px}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;pointer-events:none}
.icon-btn{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;border:1px solid var(--line);background:rgba(10,15,30,.4);
  color:var(--tx-2);transition:all var(--ease);
}
.icon-btn:hover{color:var(--primary);border-color:rgba(23,224,192,.5);background:var(--primary-soft)}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:90;
  height:72px;
  background:var(--glass-bg);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 18px rgba(0,0,0,.28);
  transition:height var(--ease),background var(--ease),box-shadow var(--ease),backdrop-filter var(--ease);
}
.site-header.is-stuck{
  height:64px;
  background:rgba(6,9,18,.92);
  backdrop-filter:blur(18px) saturate(150%);
  -webkit-backdrop-filter:blur(18px) saturate(150%);
  box-shadow:0 10px 30px rgba(0,0,0,.5);
}
.header-inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{
  width:40px;height:40px;border-radius:12px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(23,224,192,.22),rgba(31,162,255,.16));
  border:1px solid rgba(23,224,192,.42);
  color:var(--primary);font-weight:800;font-size:15px;letter-spacing:.02em;
  font-family:Inter,Arial,sans-serif;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{
  font-family:Inter,Arial,sans-serif;font-size:16px;font-weight:800;
  color:var(--tx-1);letter-spacing:.06em;
}
.brand-text em{
  font-style:normal;font-size:11px;color:var(--primary);letter-spacing:.22em;
}
.nav-desktop{display:flex;align-items:center;gap:6px;flex:1;justify-content:center}
.nav-link{
  position:relative;padding:10px 14px;border-radius:10px;
  font-size:15px;color:var(--tx-2);transition:all var(--ease);
}
.nav-link:hover{color:var(--tx-1);background:rgba(23,224,192,.08)}
.nav-link.is-active{color:var(--primary)}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  border-radius:2px;background:var(--primary);
}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.menu-toggle{display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);color:var(--tx-1);background:rgba(10,15,30,.5)}
.menu-toggle:hover{border-color:rgba(23,224,192,.5);color:var(--primary)}

.drawer{
  position:fixed;top:0;right:0;bottom:0;width:82%;max-width:360px;z-index:120;
  background:rgba(8,12,24,.98);
  backdrop-filter:blur(18px);
  border-left:1px solid var(--glass-brd);
  transform:translateX(102%);transition:transform 260ms cubic-bezier(.22,.61,.36,1);
  padding:24px 22px;display:flex;flex-direction:column;gap:8px;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid var(--line);color:var(--tx-1)}
.drawer a.d-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 6px;font-size:18px;color:var(--tx-1);
  border-bottom:1px solid rgba(120,200,255,.1);line-height:1.75;
}
.drawer a.d-link i{color:var(--tx-3);font-size:14px}
.drawer a.d-link.is-active{color:var(--primary)}
.drawer-cta{margin-top:18px}
.drawer-mask{
  position:fixed;inset:0;background:rgba(3,6,14,.66);z-index:110;
  opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);
}
.drawer-mask.is-open{opacity:1;visibility:visible}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  padding:150px 0 80px;
  background:
    linear-gradient(180deg,rgba(5,7,15,.82) 0%,rgba(5,7,15,.58) 42%,rgba(10,15,30,.96) 100%),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(120,200,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(120,200,255,.06) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 30% 20%,#000 0%,transparent 72%);
  -webkit-mask-image:radial-gradient(circle at 30% 20%,#000 0%,transparent 72%);
}
.hero-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  height:28px;padding:0 14px;border-radius:999px;
  background:var(--primary-soft);border:1px solid rgba(23,224,192,.35);
  color:var(--primary);font-size:12.5px;font-weight:600;letter-spacing:.02em;
}
.hero-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary)}
h1.hero-title{
  margin:22px 0 0;font-size:46px;line-height:1.22;letter-spacing:-.015em;color:#fff;
}
h1.hero-title span{color:var(--primary)}
.hero-sub{margin-top:20px;font-size:17px;max-width:620px;color:var(--tx-2)}
.hero-actions{margin-top:32px;display:flex;flex-wrap:wrap;gap:14px}
.hero-trust{margin-top:34px;display:flex;flex-wrap:wrap;gap:10px}
.trust-chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 14px;border-radius:999px;font-size:13px;
  background:rgba(16,24,48,.6);border:1px solid var(--line);color:var(--tx-2);
}
.trust-chip i{color:var(--primary);font-size:12px}

.glass-card{
  background:var(--glass-bg);
  border:1px solid var(--glass-brd);
  border-radius:var(--r-card);
  box-shadow:var(--sh-2);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
}
.entry-card{padding:28px}
.entry-card .ec-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:18px;border-bottom:1px solid var(--line)}
.entry-card .ec-head h2{font-size:17px}
.entry-card .ec-tag{font-size:12px;color:var(--primary);background:var(--primary-soft);border-radius:999px;padding:4px 12px}
.step-list{margin-top:8px}
.step-list li{display:flex;gap:14px;padding:16px 0;border-bottom:1px dashed rgba(120,200,255,.12)}
.step-list li:last-child{border-bottom:0;padding-bottom:4px}
.step-no{
  flex-shrink:0;width:30px;height:30px;border-radius:9px;
  display:flex;align-items:center;justify-content:center;
  font-family:Inter,Arial,sans-serif;font-size:13px;font-weight:700;
  color:var(--primary);background:var(--primary-soft);border:1px solid rgba(23,224,192,.3);
}
.step-body strong{display:block;color:var(--tx-1);font-size:15px;margin-bottom:4px}
.step-body p{font-size:13.5px;color:var(--tx-3);line-height:1.7}
.ec-foot{margin-top:16px;display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--tx-3)}

/* ============ 数据条 ============ */
.stat-band{
  position:relative;z-index:3;margin-top:-38px;
}
.stat-band .inner{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:linear-gradient(180deg,rgba(22,33,60,.9),rgba(16,24,48,.78));
  border:1px solid var(--glass-brd);border-radius:var(--r-card);
  box-shadow:var(--sh-2);overflow:hidden;
}
.stat-item{padding:24px 22px;border-right:1px solid var(--line)}
.stat-item:last-child{border-right:0}
.stat-item .sv{font-size:30px;font-weight:800;color:var(--tx-1);line-height:1.1}
.stat-item .sv.is-accent{color:var(--accent)}
.stat-item .sv small{font-size:14px;font-weight:600;color:var(--tx-2);margin-left:4px}
.stat-item .sl{margin-top:8px;font-size:13.5px;color:var(--tx-3)}

/* ============ 板块通用 ============ */
.section{padding:var(--sec) 0}
.section-alt{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{margin-bottom:44px;max-width:760px}
.sec-eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;
  letter-spacing:.18em;color:var(--primary);text-transform:uppercase;
  font-family:Inter,Arial,sans-serif;
}
.sec-head h2{font-size:30px;margin-top:14px}
.sec-head p{margin-top:14px;font-size:15.5px;color:var(--tx-2)}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}

/* ============ 卖点错位网格 ============ */
.value-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:var(--gap)}
.value-main{
  position:relative;padding:32px;border-radius:var(--r-card);
  background:linear-gradient(150deg,rgba(23,224,192,.1),rgba(16,24,48,.72) 55%);
  border:1px solid rgba(23,224,192,.28);
  box-shadow:var(--sh-2);overflow:hidden;
}
.value-main::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--primary),var(--secondary),transparent);
}
.value-main .vm-no{font-family:Inter,Arial,sans-serif;font-size:14px;font-weight:800;color:var(--primary);letter-spacing:.16em}
.value-main h3{font-size:22px;margin-top:16px}
.value-main p{margin-top:14px;font-size:15px;color:var(--tx-2);max-width:520px}
.value-main .vm-list{margin-top:22px;display:flex;flex-wrap:wrap;gap:10px}
.value-side{display:grid;gap:var(--gap)}
.value-item{
  padding:26px;border-radius:var(--r-card);
  background:var(--glass-bg);border:1px solid var(--line);
  box-shadow:var(--sh-1);transition:transform var(--ease),border-color var(--ease);
}
.value-item:hover{transform:translateY(-3px);border-color:rgba(23,224,192,.34)}
.value-item .vi-head{display:flex;align-items:center;gap:12px}
.value-item .vi-no{
  width:34px;height:34px;border-radius:10px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  font-family:Inter,Arial,sans-serif;font-size:13px;font-weight:800;
  color:var(--primary);background:var(--primary-soft);border:1px solid rgba(23,224,192,.28);
}
.value-item h3{font-size:18px}
.value-item p{margin-top:12px;font-size:14.5px;color:var(--tx-3)}

/* ============ 场景演示 ============ */
.scene-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.scene-media{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--glass-brd);box-shadow:var(--sh-2)}
.scene-media img{width:100%;height:100%;aspect-ratio:16/11;object-fit:cover;border-radius:0}
.scene-media .media-overlay{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,7,15,.12) 0%,rgba(5,7,15,.78) 100%);
}
.scene-media .media-caption{
  position:absolute;left:22px;right:22px;bottom:20px;color:var(--tx-1);
  font-size:14px;line-height:1.6;
}
.scene-media .media-caption strong{color:var(--primary)}
.ordered-steps{margin-top:26px;counter-reset:s}
.ordered-steps li{
  counter-increment:s;position:relative;padding:0 0 0 52px;margin-bottom:20px;
}
.ordered-steps li::before{
  content:counter(s,decimal-leading-zero);
  position:absolute;left:0;top:2px;width:34px;height:34px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  font-family:Inter,Arial,sans-serif;font-size:13px;font-weight:800;
  color:var(--primary);background:var(--primary-soft);border:1px solid rgba(23,224,192,.28);
}
.ordered-steps li strong{display:block;color:var(--tx-1);font-size:16px}
.ordered-steps li p{font-size:14px;color:var(--tx-3);margin-top:4px}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:8px}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--primary-soft);color:var(--primary);font-size:12px;font-weight:600;
}
.tag-blue{background:rgba(31,162,255,.12);color:#7FC8FF}
.tag-mute{background:rgba(120,200,255,.08);color:var(--tx-2)}

/* ============ 最新信息 ============ */
.news-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:var(--gap)}
.card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--glass-bg);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-2);transition:transform var(--ease),border-color var(--ease);
}
.card:hover{transform:translateY(-3px);border-color:rgba(23,224,192,.34)}
.card-media{position:relative;overflow:hidden;border-radius:0}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;transition:transform 420ms cubic-bezier(.22,.61,.36,1)}
.card:hover .card-media img{transform:scale(1.04)}
.card-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:13px;color:var(--tx-3)}
.card-meta .b-time.is-accent{color:var(--accent)}
.card h3{font-size:18px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card h3 a:hover{color:var(--primary)}
.card p.desc{font-size:14.5px;color:var(--tx-3);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;padding-top:8px;border-top:1px solid rgba(120,200,255,.1);font-size:13px;color:var(--tx-3)}
.card-foot i{color:var(--primary);transition:transform var(--ease)}
.card:hover .card-foot i{transform:translateX(4px)}
.card-feature{flex-direction:row}
.card-feature .card-media{flex:0 0 46%;max-width:46%}
.card-feature .card-media img{aspect-ratio:4/3;height:100%}
.card-feature .card-body{padding:28px}
.card-feature h3{font-size:22px;-webkit-line-clamp:2}
.card-feature p.desc{-webkit-line-clamp:3}
.news-side{display:grid;gap:var(--gap);grid-template-rows:repeat(2,1fr)}
.empty-state{
  grid-column:1/-1;display:flex;flex-direction:column;align-items:center;gap:14px;
  padding:56px 24px;border-radius:var(--r-card);
  background:rgba(23,224,192,.08);border:1px dashed rgba(23,224,192,.3);text-align:center;
}
.empty-state .es-ico{
  width:56px;height:56px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:rgba(23,224,192,.14);color:var(--primary);font-size:20px;
}
.empty-state p{font-size:15px;color:var(--tx-2)}

/* ============ 社会认同 ============ */
.voice-grid{display:grid;grid-template-columns:1.2fr 1fr .9fr;gap:var(--gap);align-items:start}
.voice{
  padding:26px;border-radius:var(--r-card);background:var(--glass-bg);
  border:1px solid var(--line);box-shadow:var(--sh-1);
}
.voice:nth-child(2){margin-top:28px}
.voice:nth-child(3){margin-top:56px}
.voice .quote{font-size:15px;color:var(--tx-1);line-height:1.85}
.voice .who{margin-top:18px;display:flex;align-items:center;gap:12px;font-size:13px;color:var(--tx-3)}
.voice .avatar{
  width:38px;height:38px;border-radius:50%;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  background:var(--primary-soft);color:var(--primary);font-weight:700;font-size:14px;
}
.trust-panel{
  margin-top:var(--gap);padding:28px;border-radius:var(--r-card);
  background:linear-gradient(120deg,rgba(16,24,48,.85),rgba(22,33,60,.6));
  border:1px solid var(--glass-brd);box-shadow:var(--sh-2);
  display:grid;grid-template-columns:repeat(3,1fr);gap:26px;
}
.trust-panel .tp-item h4{font-size:16px;display:flex;align-items:center;gap:10px}
.trust-panel .tp-item i{color:var(--primary)}
.trust-panel .tp-item p{margin-top:10px;font-size:14px;color:var(--tx-3)}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;margin:0 auto;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:flex-start;gap:16px;text-align:left;
  padding:22px 4px;font-size:16px;font-weight:700;color:var(--tx-1);
  transition:color var(--ease);
}
.faq-q:hover{color:var(--primary)}
.faq-q .qn{
  font-family:Inter,Arial,sans-serif;font-size:13px;font-weight:800;color:var(--primary);
  flex-shrink:0;padding-top:3px;letter-spacing:.04em;
}
.faq-q .qt{flex:1}
.faq-q .qi{color:var(--tx-3);transition:transform 220ms cubic-bezier(.22,.61,.36,1);font-size:13px;padding-top:5px}
.faq-item.is-open .faq-q{color:var(--primary)}
.faq-item.is-open .qi{transform:rotate(180deg);color:var(--primary)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 220ms cubic-bezier(.22,.61,.36,1)}
.faq-a p{padding:0 4px 24px 42px;font-size:15px;color:var(--tx-2);line-height:1.8}
.faq-a p + p{margin-top:-10px}

/* ============ CTA ============ */
.cta-band{padding:0 0 var(--sec)}
.cta-box{
  position:relative;overflow:hidden;border-radius:24px;
  padding:52px 48px;
  background:
    linear-gradient(120deg,rgba(23,224,192,.16),rgba(31,162,255,.1) 55%,rgba(10,15,30,.9)),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  border:1px solid rgba(23,224,192,.3);box-shadow:var(--sh-2);
}
.cta-box::after{content:"";position:absolute;inset:0;background:rgba(5,7,15,.42);pointer-events:none}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-inner h2{font-size:28px;color:#fff;max-width:560px}
.cta-inner p{margin-top:12px;font-size:15px;color:var(--tx-2);max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-0);border-top:1px solid var(--line);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.footer-brand .brand-text strong{color:var(--tx-1)}
.footer-col h4{font-size:15px;color:var(--tx-1);margin-bottom:16px}
.footer-col p{font-size:14px;color:var(--tx-3);line-height:1.85}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{font-size:14px;color:var(--tx-3)}
.footer-col ul a:hover{color:var(--primary)}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:var(--tx-3);margin-bottom:12px}
.footer-contact i{color:var(--primary);padding-top:5px;font-size:13px}
.footer-bottom{
  margin-top:52px;padding:22px 0;border-top:1px solid rgba(120,200,255,.1);
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13px;color:var(--tx-3);
}
.footer-note{font-size:13px;color:var(--tx-3);line-height:1.8;padding-bottom:26px;max-width:900px}

/* ============ 吸底转化条 ============ */
.sticky-bar{
  position:fixed;left:50%;bottom:16px;transform:translate(-50%,140%);
  width:min(920px,calc(100% - 48px));min-height:64px;z-index:80;
  display:flex;align-items:center;gap:18px;
  padding:10px 12px 10px 22px;
  background:rgba(10,15,30,.9);
  border:1px solid var(--glass-brd);border-radius:16px;
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--sh-2);
  opacity:0;transition:transform 280ms cubic-bezier(.22,.61,.36,1),opacity 280ms;
}
.sticky-bar.is-show{transform:translate(-50%,0);opacity:1}
.sticky-bar .sb-text{flex:1;font-size:14.5px;color:var(--tx-1)}
.sticky-bar .sb-text span{display:block;font-size:12.5px;color:var(--tx-3);margin-top:2px}
.sb-close{width:34px;height:34px;border-radius:10px;color:var(--tx-3);flex-shrink:0}
.sb-close:hover{color:var(--tx-1);background:rgba(120,200,255,.1)}

/* ============ 响应式 ============ */
@media(max-width:1279px){
  .news-grid{grid-template-columns:1fr}
  .news-side{grid-template-columns:repeat(2,1fr);grid-template-rows:auto}
  .value-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
  .trust-panel{grid-template-columns:1fr}
}
@media(max-width:1023px){
  :root{--sec:68px}
  .nav-desktop{display:none}
  .menu-toggle{display:inline-flex;align-items:center;justify-content:center}
  .header-actions .btn{display:none}
  .hero{padding:126px 0 68px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  h1.hero-title{font-size:36px}
  .hero-sub{font-size:16px}
  .stat-band .inner{grid-template-columns:repeat(2,1fr)}
  .stat-item:nth-child(2){border-right:0}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-bottom:1px solid var(--line)}
  .scene-grid{grid-template-columns:1fr;gap:32px}
  .card-feature{flex-direction:column}
  .card-feature .card-media{flex:none;max-width:100%}
  .card-feature .card-media img{aspect-ratio:16/9}
  .voice-grid{grid-template-columns:1fr 1fr}
  .voice:nth-child(3){margin-top:0}
  .value-side{grid-template-columns:1fr 1fr}
  .cta-box{padding:40px 28px}
}
@media(max-width:767px){
  :root{--sec:48px;--gap:18px}
  body{font-size:15px}
  .container{padding:0 18px}
  .hero{padding:112px 0 56px}
  h1.hero-title{font-size:30px;line-height:1.3}
  .hero-actions .btn{flex:1 1 100%}
  .stat-band{margin-top:-26px}
  .stat-band .inner{grid-template-columns:1fr}
  .stat-item{border-right:0;border-bottom:1px solid var(--line);padding:20px 18px}
  .stat-item:last-child{border-bottom:0}
  .sec-head h2{font-size:24px}
  .value-side{grid-template-columns:1fr}
  .news-side{grid-template-columns:1fr}
  .voice-grid{grid-template-columns:1fr}
  .voice:nth-child(2),.voice:nth-child(3){margin-top:0}
  .trust-panel{padding:22px;gap:20px}
  .faq-a p{padding-left:4px}
  .cta-box{padding:32px 20px;border-radius:18px}
  .cta-inner h2{font-size:22px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .sticky-bar{
    left:0;right:0;bottom:0;transform:translateY(140%);
    width:100%;border-radius:0;min-height:68px;padding-left:16px;
  }
  .sticky-bar.is-show{transform:translateY(0)}
  .sticky-bar .sb-text{font-size:13.5px}
  .sticky-bar .sb-text span{display:none}
}
@media(max-width:480px){
  .hero::after{display:none}
  .brand-text strong{font-size:14px;letter-spacing:.04em}
  h1.hero-title{font-size:26px}
  .entry-card{padding:20px}
  .card-body{padding:18px}
  .card-feature .card-body{padding:20px}
  .card-media img{aspect-ratio:4/3}
  .scene-media img{aspect-ratio:4/3}
}

/* roulang page: article */
:root{
  --bg-0:#05070F;--bg-1:#0A0F1E;--bg-2:#101830;--bg-3:#16213C;
  --primary:#17E0C0;--primary-deep:#0E9C87;--primary-soft:rgba(23,224,192,.12);
  --secondary:#1FA2FF;--accent:#FF9E2C;
  --tx-1:#EAF2FF;--tx-2:#A3B6D4;--tx-3:#6C7E9C;
  --line:rgba(120,200,255,.14);
  --glass-bg:rgba(16,24,48,.55);--glass-brd:rgba(150,210,255,.18);
  --r-card:18px;--r-img:14px;--r-btn:12px;--r-input:12px;--r-pill:999px;
  --sh-1:0 2px 10px rgba(0,0,0,.35);
  --sh-2:0 14px 36px rgba(3,8,20,.55);
  --sh-glow:0 10px 30px rgba(23,224,192,.28);
  --ease:cubic-bezier(.22,.61,.36,1);
  --container:1200px;
  --gap:24px;
}
@media (min-width:1440px){:root{--container:1280px}}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg-1);color:var(--tx-2);
  font-family:"HarmonyOS Sans SC","PingFang SC","Source Han Sans SC","Microsoft YaHei",Inter,sans-serif;
  font-size:16px;line-height:1.8;letter-spacing:0;
  padding-bottom:88px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.is-locked{overflow:hidden}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color 180ms var(--ease),opacity 180ms var(--ease)}
a:hover{color:#5BF0D8}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
h1,h2,h3,h4{margin:0;color:var(--tx-1);font-weight:700;letter-spacing:-.01em;line-height:1.35}
p{margin:0 0 18px}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.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:36px;flex-wrap:wrap}
.section-head h2{font-size:30px}
.section-head p{margin:8px 0 0;color:var(--tx-3);font-size:14.5px;max-width:620px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--primary);letter-spacing:.06em;text-transform:uppercase;margin-bottom:14px}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--primary)}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:var(--glass-bg);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
  box-shadow:0 8px 26px rgba(3,8,20,.35);
  transition:height 220ms var(--ease),background 220ms var(--ease),box-shadow 220ms var(--ease);
}
.header-inner{display:flex;align-items:center;gap:28px;height:72px;transition:height 220ms var(--ease)}
.site-header.is-stuck{background:rgba(6,9,18,.92);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);box-shadow:0 12px 34px rgba(2,6,16,.6)}
.site-header.is-stuck .header-inner{height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--tx-1)}
.brand:hover{color:var(--tx-1)}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--primary),var(--primary-deep));
  color:#04140F;font-weight:800;font-size:14px;letter-spacing:.04em;
  box-shadow:0 8px 20px rgba(23,224,192,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text strong{font-size:16px;letter-spacing:.08em;color:var(--tx-1)}
.brand-text em{font-style:normal;font-size:11px;color:var(--tx-3);letter-spacing:.22em;margin-top:3px}
.nav-desktop{display:flex;align-items:center;gap:6px;margin-left:12px}
.nav-link{
  position:relative;padding:10px 14px;border-radius:10px;font-size:15px;color:var(--tx-2);
  transition:background 180ms var(--ease),color 180ms var(--ease);
}
.nav-link:hover{color:var(--tx-1);background:rgba(150,210,255,.07)}
.nav-link.is-active{color:var(--tx-1);background:var(--primary-soft)}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),rgba(23,224,192,0));
}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.icon-btn{
  width:38px;height:38px;border-radius:10px;display:grid;place-items:center;
  color:var(--tx-2);border:1px solid var(--line);background:rgba(150,210,255,.05);
  transition:color 180ms var(--ease),border-color 180ms var(--ease),background 180ms var(--ease);
}
.icon-btn:hover{color:var(--primary);border-color:rgba(23,224,192,.4);background:var(--primary-soft)}
.menu-toggle{
  width:38px;height:38px;border-radius:10px;display:none;place-items:center;
  color:var(--tx-1);border:1px solid var(--line);background:rgba(150,210,255,.06);
}
.menu-toggle:hover{color:var(--primary)}
@media (max-width:1023px){
  .nav-desktop{display:none}
  .menu-toggle{display:grid}
  .header-actions .btn-sm{display:none}
}

/* ---------- buttons ---------- */
.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;white-space:nowrap;
  border:1px solid transparent;
  transition:transform 180ms var(--ease),box-shadow 180ms var(--ease),background 180ms var(--ease),color 180ms var(--ease),border-color 180ms var(--ease),opacity 180ms var(--ease);
}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px}
.btn-block{width:100%}
.btn-primary{
  background:linear-gradient(135deg,#17E0C0,#12B9A8);
  color:#04140F;box-shadow:var(--sh-glow);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 14px 38px rgba(23,224,192,.36);color:#04140F}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 18px rgba(23,224,192,.25)}
.btn-ghost{
  background:var(--glass-bg);color:var(--tx-1);border-color:var(--glass-brd);box-shadow:var(--sh-1);
}
.btn-ghost:hover{border-color:rgba(23,224,192,.45);color:var(--tx-1);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-accent{background:linear-gradient(135deg,#FF9E2C,#F0821A);color:#20130A;box-shadow:0 10px 26px rgba(255,158,44,.28)}
.btn-accent:hover{filter:brightness(1.05);transform:translateY(-1px);color:#20130A}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-size:14px;font-weight:600;padding:4px 2px;
}
.btn-text:hover{color:#5BF0D8;gap:10px}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;pointer-events:none}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--primary-soft);color:var(--primary);font-size:12px;font-weight:600;letter-spacing:.02em;
}
.badge-muted{background:rgba(150,210,255,.08);color:var(--tx-3)}

/* ---------- drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(3,6,14,.62);z-index:80;opacity:0;pointer-events:none;transition:opacity 220ms var(--ease);
}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:82%;max-width:360px;z-index:90;
  background:rgba(9,14,28,.96);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  border-left:1px solid var(--line);box-shadow:-20px 0 60px rgba(2,6,16,.6);
  transform:translateX(102%);transition:transform 260ms var(--ease);
  display:flex;flex-direction:column;padding:22px
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;gap:10px;padding-bottom:18px;border-bottom:1px solid var(--line)}
.drawer-close{width:36px;height:36px;border-radius:10px;margin-left:auto;display:grid;place-items:center;color:var(--tx-2);border:1px solid var(--line)}
.drawer-nav{display:flex;flex-direction:column;padding:14px 0;flex:1}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  font-size:18px;line-height:3.2;color:var(--tx-1);border-bottom:1px solid rgba(120,200,255,.08);
}
.drawer-nav a i{color:var(--tx-3);font-size:14px}
.drawer-nav a.is-active{color:var(--primary)}

/* ---------- article hero ---------- */
.article-hero{
  position:relative;padding:132px 0 56px;
  background-image:linear-gradient(180deg,rgba(5,7,15,.72),rgba(10,15,30,.96)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--tx-3);margin-bottom:22px}
.breadcrumb a{color:var(--tx-3)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb i{font-size:10px;color:var(--tx-3)}
.article-title{
  font-size:42px;line-height:1.24;max-width:900px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.meta-row{display:flex;align-items:center;flex-wrap:wrap;gap:14px;margin-top:22px;font-size:13px;color:var(--tx-3)}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:var(--tx-3);opacity:.6}
.meta-item{display:inline-flex;align-items:center;gap:6px}
.hero-lines{position:absolute;left:0;right:0;bottom:0;height:1px;background:linear-gradient(90deg,rgba(23,224,192,0),rgba(23,224,192,.5),rgba(23,224,192,0))}

/* ---------- article body ---------- */
.article-main{padding:64px 0 24px}
.article-body{
  max-width:780px;margin:0 auto;font-size:16px;line-height:1.85;color:var(--tx-2);
}
.article-body>*:first-child{margin-top:0}
.article-body h2{
  position:relative;font-size:27px;line-height:1.4;color:var(--tx-1);
  margin:46px 0 18px;padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.24em;bottom:.24em;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--primary),var(--primary-deep));
}
.article-body h3{font-size:20px;margin:34px 0 14px;color:var(--tx-1)}
.article-body p{margin:0 0 20px}
.article-body strong{color:var(--tx-1)}
.article-body a{color:var(--primary);border-bottom:1px solid rgba(23,224,192,.35)}
.article-body a:hover{border-bottom-color:var(--primary)}
.article-body ul,.article-body ol{margin:0 0 22px;padding-left:24px}
.article-body ul li{list-style:none;position:relative;margin-bottom:10px;line-height:1.8}
.article-body ul li::before{content:"";position:absolute;left:-18px;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--primary)}
.article-body ol{list-style:decimal}
.article-body ol li{margin-bottom:10px;line-height:1.8;padding-left:4px}
.article-body ol li::marker{color:var(--primary);font-weight:700}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;border-left:2px solid var(--primary);
  background:var(--glass-bg);border-radius:0 var(--r-img) var(--r-img) 0;color:var(--tx-1);font-size:15.5px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-img);margin:26px auto;box-shadow:var(--sh-2)}
.article-body figure{margin:26px 0}
.article-body figure img{margin:0 auto 10px}
.article-body figcaption{font-size:13px;color:var(--tx-3);text-align:center}
.article-body table{
  width:100%;margin:26px 0;font-size:14.5px;border-collapse:separate;border-spacing:0;
  border:1px solid var(--line);border-radius:var(--r-img);overflow:hidden;
}
.article-body th{background:rgba(150,210,255,.08);color:var(--tx-1);font-weight:600;text-align:left}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--line)}
.article-body tr:last-child td{border-bottom:0}
.article-body code{background:rgba(23,224,192,.1);color:var(--primary);padding:2px 7px;border-radius:6px;font-size:.9em}
.article-body hr{border:0;height:1px;background:var(--line);margin:36px 0}
.empty-state{
  max-width:780px;margin:0 auto;text-align:center;padding:56px 28px;
  background:var(--glass-bg);border:1px solid var(--glass-brd);border-radius:var(--r-card);box-shadow:var(--sh-2);
}
.empty-icon{
  width:64px;height:64px;border-radius:50%;margin:0 auto 18px;display:grid;place-items:center;
  background:var(--primary-soft);color:var(--primary);font-size:24px;
}
.empty-state h2{font-size:22px;margin-bottom:10px}
.empty-state p{color:var(--tx-3);margin-bottom:22px}

/* ---------- back links + related ---------- */
.back-links{display:flex;flex-wrap:wrap;gap:14px;margin-top:48px;padding-top:28px;border-top:1px solid var(--line)}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.card{
  position:relative;display:flex;flex-direction:column;overflow:hidden;
  background:var(--glass-bg);border:1px solid var(--glass-brd);border-radius:var(--r-card);
  box-shadow:var(--sh-2);
  transition:transform 180ms var(--ease),border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.card:hover{transform:translateY(-3px);border-color:rgba(23,224,192,.32);box-shadow:0 20px 44px rgba(3,8,20,.6)}
.card-media{aspect-ratio:16/9;overflow:hidden;background:rgba(23,224,192,.08)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform 420ms var(--ease)}
.card:hover .card-media img{transform:scale(1.04)}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.card-top{display:flex;align-items:center;gap:10px;margin-bottom:12px;font-size:13px;color:var(--tx-3)}
.card-title{font-size:17.5px;line-height:1.5;color:var(--tx-1);margin-bottom:8px}
.card-text{font-size:14.5px;color:var(--tx-2);line-height:1.75;margin:0 0 16px}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--tx-3)}
.card-foot i{color:var(--primary)}
.card-link{position:absolute;inset:0;z-index:2}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,rgba(16,24,48,.92),rgba(22,33,60,.7));
  border:1px solid var(--glass-brd);border-radius:var(--r-card);box-shadow:var(--sh-2);
  padding:48px;display:flex;align-items:center;gap:36px;flex-wrap:wrap;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-80px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(23,224,192,.18),transparent 68%);
}
.cta-copy{flex:1;min-width:280px;position:relative;z-index:1}
.cta-copy h2{font-size:28px;margin-bottom:12px}
.cta-copy p{margin:0;color:var(--tx-2);max-width:640px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:1}

/* ---------- footer ---------- */
.site-footer{background:var(--bg-0);border-top:1px solid var(--line);padding:64px 0 28px;margin-top:96px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--tx-1)}
.footer-col p{font-size:13.5px;color:var(--tx-3);line-height:1.85;margin:0}
.footer-col ul li{margin-bottom:11px}
.footer-col ul a{font-size:14px;color:var(--tx-2)}
.footer-col ul a:hover{color:var(--primary)}
.footer-contact li{display:flex;gap:10px;font-size:13.5px;color:var(--tx-3);align-items:flex-start}
.footer-contact i{color:var(--primary);margin-top:5px;font-size:13px}
.footer-note{
  margin-top:40px;padding-top:24px;border-top:1px solid var(--line);
  font-size:13px;color:var(--tx-3);line-height:1.9;
}
.footer-bottom{
  margin-top:20px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--tx-3);
}
.footer-bottom a{color:var(--tx-3)}

/* ---------- sticky cta ---------- */
.sticky-cta{
  position:fixed;left:50%;bottom:16px;transform:translate(-50%,140%);
  width:min(920px,calc(100% - 48px));height:64px;z-index:70;
  display:flex;align-items:center;gap:16px;padding:0 16px 0 22px;
  background:rgba(12,18,36,.86);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border:1px solid var(--glass-brd);border-radius:16px;box-shadow:var(--sh-2);
  opacity:0;transition:transform 260ms var(--ease),opacity 260ms var(--ease);
}
.sticky-cta.is-visible{transform:translate(-50%,0);opacity:1}
.sticky-cta p{margin:0;font-size:14px;color:var(--tx-2);flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.sticky-cta p strong{color:var(--tx-1)}
.sticky-close{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;color:var(--tx-3);border:1px solid var(--line)}
.sticky-close:hover{color:var(--tx-1);border-color:rgba(23,224,192,.4)}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .article-title{font-size:38px}
}
@media (max-width:1023px){
  .section{padding:68px 0}
  .article-hero{padding:112px 0 44px}
  .article-title{font-size:33px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .related-grid{grid-template-columns:1fr 1fr}
  .cta-band{padding:36px}
}
@media (max-width:767px){
  body{font-size:15.5px;padding-bottom:96px}
  .container{padding:0 18px}
  .section{padding:48px 0}
  .section-head h2{font-size:24px}
  .header-inner{height:60px;gap:16px}
  .site-header.is-stuck .header-inner{height:56px}
  .article-hero{padding:96px 0 36px}
  .article-title{font-size:27px}
  .article-main{padding:44px 0 12px}
  .article-body h2{font-size:22px;margin-top:36px}
  .article-body h3{font-size:18.5px}
  .article-body{font-size:15.5px}
  .related-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .cta-band{padding:28px 22px;gap:22px}
  .cta-copy h2{font-size:22px}
  .sticky-cta{width:100%;left:0;transform:translate(0,140%);bottom:0;height:68px;border-radius:0;border-left:0;border-right:0;border-bottom:0}
  .sticky-cta.is-visible{transform:translate(0,0)}
  .sticky-cta p{font-size:13px}
}
@media (max-width:520px){
  .article-title{font-size:24px;-webkit-line-clamp:3}
  .brand-text em{display:none}
  .back-links{flex-direction:column;align-items:stretch}
  .back-links .btn{width:100%}
  .cta-actions .btn{width:100%}
}

/* roulang page: category1 */
:root{
  --bg-0:#05070F;
  --bg-1:#0A0F1E;
  --bg-2:#101830;
  --bg-3:#16213C;
  --primary:#17E0C0;
  --primary-deep:#0E9C87;
  --primary-soft:rgba(23,224,192,.12);
  --secondary:#1FA2FF;
  --accent:#FF9E2C;
  --tx-1:#EAF2FF;
  --tx-2:#A3B6D4;
  --tx-3:#6C7E9C;
  --line:rgba(120,200,255,.14);
  --glass-bg:rgba(16,24,48,.55);
  --glass-brd:rgba(150,210,255,.18);
  --r-card:18px;
  --r-img:14px;
  --r-btn:12px;
  --r-input:12px;
  --sh-1:0 2px 10px rgba(0,0,0,.35);
  --sh-2:0 14px 36px rgba(3,8,20,.55);
  --sh-glow:0 10px 30px rgba(23,224,192,.28);
  --gap:24px;
  --sec:96px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","PingFang SC","Source Han Sans SC","Microsoft YaHei",Inter,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--tx-2);
  background:var(--bg-1);
  padding-bottom:88px;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease),transform .18s var(--ease);}
button,input,textarea,select{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;color:var(--tx-1);font-weight:700;letter-spacing:-.01em;line-height:1.32;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
::selection{background:var(--primary-soft);color:var(--tx-1);}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:var(--sec) 0;}
.section-tight{padding:64px 0;}
.sec-head{margin-bottom:40px;max-width:760px;}
.sec-head h2{font-size:30px;margin-bottom:14px;}
.sec-head p{font-size:15.5px;color:var(--tx-2);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.08em;color:var(--primary);
  background:var(--primary-soft);border:1px solid rgba(23,224,192,.24);
  padding:5px 14px;border-radius:999px;margin-bottom:18px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary);}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:200;
  height:72px;
  background:var(--glass-bg);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
  box-shadow:var(--sh-1);
  transition:height .22s var(--ease),background .22s var(--ease),box-shadow .22s var(--ease);
}
.site-header.is-stuck{
  height:64px;
  background:rgba(6,9,18,.92);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  backdrop-filter:blur(18px) saturate(140%);
  box-shadow:0 10px 30px rgba(2,6,16,.6);
}
.header-inner{height:100%;display:flex;align-items:center;gap:28px;}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand-mark{
  width:40px;height:40px;border-radius:12px;
  display:grid;place-items:center;
  font-family:Inter,sans-serif;font-weight:700;font-size:15px;letter-spacing:.02em;
  color:#04140f;
  background:linear-gradient(135deg,#17E0C0,#12B9A8);
  box-shadow:var(--sh-glow);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-family:Inter,sans-serif;font-size:16px;letter-spacing:.06em;color:var(--tx-1);}
.brand-text em{font-style:normal;font-size:12px;color:var(--tx-3);letter-spacing:.14em;}
.nav-desktop{display:flex;align-items:center;gap:6px;margin-left:8px;}
.nav-link{
  position:relative;
  padding:10px 16px;border-radius:999px;
  font-size:15px;color:var(--tx-2);
}
.nav-link:hover{color:var(--tx-1);background:rgba(120,200,255,.08);}
.nav-link.is-active{color:var(--primary);background:var(--primary-soft);}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:18px;height:2px;border-radius:2px;background:var(--primary);
}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.icon-btn{
  width:40px;height:40px;border-radius:12px;
  display:grid;place-items:center;
  background:rgba(120,200,255,.06);
  border:1px solid var(--line);
  color:var(--tx-2);cursor:pointer;
  transition:all .18s var(--ease);
}
.icon-btn:hover{color:var(--primary);border-color:rgba(23,224,192,.4);background:var(--primary-soft);}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  background:rgba(120,200,255,.06);border:1px solid var(--line);
  color:var(--tx-1);cursor:pointer;
}
.nav-mask{
  position:fixed;inset:0;background:rgba(3,6,14,.66);
  -webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);
  opacity:0;visibility:hidden;transition:opacity .24s var(--ease),visibility .24s var(--ease);
  z-index:180;
}
.nav-mask.is-open{opacity:1;visibility:visible;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:all .18s var(--ease);
  white-space:nowrap;
}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-primary{
  color:#04140f;
  background:linear-gradient(135deg,#17E0C0,#12B9A8);
  box-shadow:var(--sh-glow);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 14px 36px rgba(23,224,192,.36);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 18px rgba(23,224,192,.24);}
.btn-ghost{
  color:var(--tx-1);
  background:rgba(150,210,255,.06);
  border-color:var(--glass-brd);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
}
.btn-ghost:hover{border-color:rgba(23,224,192,.5);color:var(--primary);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-text{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--primary);font-size:15px;font-weight:600;padding:6px 2px;
}
.btn-text:hover{gap:12px;color:#4bf0d6;}
.btn:disabled,.btn.is-disabled{opacity:.45;box-shadow:none;cursor:not-allowed;transform:none;}

/* ============ 首屏 ============ */
.page-hero{
  position:relative;
  padding:150px 0 84px;
  background-image:linear-gradient(180deg,rgba(5,8,17,.52) 0%,rgba(5,8,17,.82) 58%,var(--bg-1) 100%),url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";position:absolute;inset:auto 0 0 0;height:160px;
  background:linear-gradient(180deg,rgba(10,15,30,0) 0%,var(--bg-1) 100%);
  pointer-events:none;
}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.35fr 1fr;gap:56px;align-items:end;}
.breadcrumb{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  font-size:13px;color:var(--tx-3);margin-bottom:22px;
}
.breadcrumb a{color:var(--tx-3);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb i{font-size:10px;color:var(--tx-3);}
.page-hero h1{
  font-size:44px;line-height:1.22;letter-spacing:-.02em;
  max-width:760px;margin-bottom:20px;
}
.page-hero h1 .hl{
  color:var(--primary);
  background:linear-gradient(180deg,transparent 62%,rgba(23,224,192,.18) 62%);
}
.hero-lead{
  font-size:17px;color:var(--tx-2);max-width:640px;line-height:1.85;margin-bottom:30px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
.hero-side{display:flex;flex-direction:column;gap:16px;}
.hero-card{
  background:var(--glass-bg);
  border:1px solid var(--glass-brd);
  border-radius:var(--r-card);
  padding:24px;
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  box-shadow:var(--sh-2);
}
.hero-card h3{font-size:17px;margin-bottom:16px;display:flex;align-items:center;gap:10px;}
.hero-card h3 i{color:var(--primary);font-size:15px;}
.mini-steps{display:flex;flex-direction:column;gap:14px;}
.mini-step{display:flex;gap:12px;align-items:flex-start;font-size:14.5px;color:var(--tx-2);}
.mini-step span.num{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  display:grid;place-items:center;
  font-family:Inter,sans-serif;font-size:12px;font-weight:600;
  color:var(--primary);background:var(--primary-soft);border:1px solid rgba(23,224,192,.28);
}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:10px;
}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12.5px;color:var(--tx-2);
  background:rgba(120,200,255,.07);
  border:1px solid var(--line);
  border-radius:999px;padding:6px 14px;
}
.chip i{color:var(--primary);font-size:11px;}

/* ============ 导语 ============ */
.intro-band{
  padding:72px 0 8px;
}
.intro-inner{
  border-left:3px solid var(--primary);
  padding-left:26px;
  max-width:900px;
}
.intro-inner p{font-size:16.5px;line-height:1.9;margin-bottom:16px;}
.intro-inner p:last-child{margin-bottom:0;color:var(--tx-3);font-size:15px;}

/* ============ 图文两栏 ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.split-visual{position:relative;}
.split-visual img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border:1px solid var(--glass-brd);
  box-shadow:var(--sh-2);
}
.split-visual .tag-float{
  position:absolute;left:18px;bottom:18px;
  background:rgba(6,10,22,.82);
  border:1px solid var(--glass-brd);
  border-radius:12px;padding:10px 16px;
  font-size:13px;color:var(--tx-1);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  display:flex;align-items:center;gap:9px;
}
.split-visual .tag-float i{color:var(--primary);}
.split-body h2{font-size:30px;margin-bottom:18px;}
.split-body p{font-size:15.5px;margin-bottom:14px;}
.split-body .kv{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:26px;
}
.kv-item{
  background:var(--glass-bg);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:18px;
}
.kv-item strong{display:block;font-family:Inter,sans-serif;font-size:20px;color:var(--primary);margin-bottom:6px;}
.kv-item span{font-size:14px;color:var(--tx-2);}

/* ============ 要点清单 ============ */
.check-panel{
  background:linear-gradient(180deg,var(--bg-2),rgba(16,24,48,.4));
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:44px;
  box-shadow:var(--sh-2);
}
.check-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px 34px;margin-top:30px;}
.check-item{display:flex;gap:14px;align-items:flex-start;}
.check-item i{
  flex:0 0 auto;width:24px;height:24px;border-radius:50%;
  display:grid;place-items:center;font-size:11px;
  color:var(--primary);background:var(--primary-soft);border:1px solid rgba(23,224,192,.3);
  margin-top:4px;
}
.check-item strong{display:block;color:var(--tx-1);font-size:16px;margin-bottom:4px;}
.check-item p{font-size:14.5px;color:var(--tx-2);line-height:1.8;}

/* ============ 时间轴 ============ */
.timeline{position:relative;margin-top:44px;padding-left:34px;}
.timeline::before{
  content:"";position:absolute;left:11px;top:6px;bottom:6px;width:2px;
  background:linear-gradient(180deg,rgba(23,224,192,.6),rgba(31,162,255,.16));
}
.tl-item{position:relative;padding:0 0 34px 22px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:-30px;top:8px;
  width:12px;height:12px;border-radius:50%;
  background:var(--bg-1);border:2px solid var(--primary);
  box-shadow:0 0 0 4px rgba(23,224,192,.12);
}
.tl-item .tl-num{
  font-family:Inter,sans-serif;font-size:13px;font-weight:600;letter-spacing:.1em;
  color:var(--primary);display:block;margin-bottom:6px;
}
.tl-item h3{font-size:19px;margin-bottom:8px;}
.tl-item p{font-size:15px;max-width:720px;}

/* ============ 误区提示 ============ */
.warn-wrap{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;margin-top:36px;}
.warn-card{
  background:var(--glass-bg);
  border:1px solid var(--line);
  border-left:3px solid var(--accent);
  border-radius:var(--r-card);
  padding:24px;
  transition:transform .18s var(--ease),border-color .18s var(--ease);
}
.warn-card:hover{transform:translateY(-3px);border-color:rgba(255,158,44,.42);}
.warn-card i{color:var(--accent);font-size:18px;margin-bottom:14px;display:block;}
.warn-card h3{font-size:17px;margin-bottom:8px;}
.warn-card p{font-size:14.5px;line-height:1.8;}

/* ============ 相关入口 ============ */
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:38px;}
.rel-card{
  display:flex;flex-direction:column;
  background:var(--glass-bg);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px;
  box-shadow:var(--sh-2);
  transition:transform .18s var(--ease),border-color .18s var(--ease);
}
.rel-card:hover{transform:translateY(-3px);border-color:rgba(23,224,192,.32);}
.rel-card .badge{margin-bottom:14px;}
.rel-card h3{font-size:18px;margin-bottom:10px;}
.rel-card p{font-size:14.5px;flex:1;}
.rel-card .rel-link{margin-top:18px;font-size:14px;color:var(--primary);display:inline-flex;align-items:center;gap:8px;}
.rel-card:hover .rel-link{gap:12px;}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;color:var(--primary);
  background:var(--primary-soft);border:1px solid rgba(23,224,192,.22);
}

/* ============ 底部 CTA ============ */
.cta-band{
  background:linear-gradient(135deg,rgba(23,224,192,.1),rgba(31,162,255,.08));
  border:1px solid var(--glass-brd);
  border-radius:var(--r-card);
  padding:52px;
  display:grid;grid-template-columns:1.4fr auto;gap:36px;align-items:center;
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  box-shadow:var(--sh-2);
}
.cta-band h2{font-size:28px;margin-bottom:12px;}
.cta-band p{font-size:15.5px;max-width:640px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--bg-0);
  border-top:1px solid var(--line);
  padding:72px 0 32px;
  margin-top:96px;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-col h4{font-size:15px;margin-bottom:18px;color:var(--tx-1);}
.footer-col p{font-size:14px;color:var(--tx-3);line-height:1.85;max-width:340px;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col ul a{font-size:14px;color:var(--tx-2);}
.footer-col ul a:hover{color:var(--primary);}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--tx-3);line-height:1.7;}
.footer-contact i{color:var(--primary);font-size:13px;margin-top:6px;}
.footer-note{
  margin-top:44px;padding-top:26px;border-top:1px solid var(--line);
  font-size:13px;color:var(--tx-3);line-height:1.85;
}
.footer-bottom{
  margin-top:22px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--tx-3);
}

/* ============ 吸底转化条 ============ */
.sticky-cta{
  position:fixed;left:50%;bottom:18px;transform:translate(-50%,140%);
  width:min(920px,calc(100% - 48px));
  height:64px;border-radius:16px;
  background:rgba(10,16,34,.9);
  border:1px solid var(--glass-brd);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  box-shadow:var(--sh-2);
  display:flex;align-items:center;gap:16px;
  padding:0 14px 0 22px;
  opacity:0;visibility:hidden;
  transition:opacity .28s var(--ease),transform .28s var(--ease),visibility .28s var(--ease);
  z-index:190;
}
.sticky-cta.is-show{opacity:1;visibility:visible;transform:translate(-50%,0);}
.sticky-cta .sticky-text{display:flex;flex-direction:column;line-height:1.35;min-width:0;}
.sticky-cta .sticky-text strong{font-size:14.5px;color:var(--tx-1);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.sticky-cta .sticky-text span{font-size:12.5px;color:var(--tx-3);}
.sticky-cta .btn{margin-left:auto;}
.sticky-close{
  width:34px;height:34px;border-radius:10px;flex:0 0 auto;
  background:transparent;border:1px solid var(--line);color:var(--tx-3);cursor:pointer;
  transition:all .18s var(--ease);
}
.sticky-close:hover{color:var(--tx-1);border-color:var(--glass-brd);}

/* ============ 响应式 ============ */
@media (max-width:1439px){
  .container{max-width:1200px;}
}
@media (max-width:1279px){
  .page-hero h1{font-size:38px;}
  .hero-grid{gap:40px;}
}
@media (max-width:1023px){
  :root{--sec:68px;}
  .nav-desktop{
    position:fixed;top:0;right:0;height:100vh;width:82%;
    flex-direction:column;align-items:flex-start;gap:0;
    padding:96px 28px 40px;margin:0;
    background:rgba(8,13,28,.97);
    border-left:1px solid var(--glass-brd);
    transform:translateX(100%);
    transition:transform .28s var(--ease);
    z-index:190;
  }
  .nav-desktop.is-open{transform:translateX(0);}
  .nav-link{width:100%;font-size:18px;padding:18px 8px;border-radius:0;border-bottom:1px solid var(--line);}
  .nav-link.is-active::after{display:none;}
  .menu-toggle{display:grid;place-items:center;}
  .header-actions .btn-sm{display:none;}
  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .split{grid-template-columns:1fr;gap:34px;}
  .check-grid{grid-template-columns:1fr;}
  .warn-wrap{grid-template-columns:1fr;}
  .related-grid{grid-template-columns:1fr;}
  .cta-band{grid-template-columns:1fr;padding:38px;gap:26px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .page-hero{padding:128px 0 64px;}
}
@media (max-width:767px){
  :root{--sec:48px;}
  body{padding-bottom:96px;font-size:15.5px;}
  .container{padding:0 18px;}
  .page-hero{padding:112px 0 52px;}
  .page-hero h1{font-size:29px;}
  .hero-lead{font-size:15.5px;}
  .sec-head h2{font-size:23px;}
  .split-body h2{font-size:23px;}
  .check-panel{padding:26px 20px;}
  .cta-band{padding:28px 20px;}
  .cta-band h2{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .sticky-cta{
    left:0;bottom:0;transform:translate(0,140%);
    width:100%;height:68px;border-radius:0;
    border-left:0;border-right:0;border-bottom:0;
    padding:0 12px 0 16px;
  }
  .sticky-cta.is-show{transform:translate(0,0);}
  .sticky-cta .sticky-text span{display:none;}
  .timeline{padding-left:26px;}
}
@media (max-width:480px){
  .page-hero{border-bottom:0;}
  .kv{grid-template-columns:1fr;}
  .split-body .kv{grid-template-columns:1fr;}
  .hero-actions .btn{width:100%;}
  .sticky-cta .btn{padding:10px 14px;font-size:13.5px;}
  .brand-text strong{font-size:15px;}
}

/* roulang page: category2 */
:root{
  --bg-0:#05070F;
  --bg-1:#0A0F1E;
  --bg-2:#101830;
  --bg-3:#16213C;
  --primary:#17E0C0;
  --primary-deep:#0E9C87;
  --primary-soft:rgba(23,224,192,.12);
  --secondary:#1FA2FF;
  --accent:#FF9E2C;
  --tx-1:#EAF2FF;
  --tx-2:#A3B6D4;
  --tx-3:#6C7E9C;
  --line:rgba(120,200,255,.14);
  --glass-bg:rgba(16,24,48,.55);
  --glass-brd:rgba(150,210,255,.18);
  --r-card:18px;
  --r-img:14px;
  --r-btn:12px;
  --r-input:12px;
  --r-badge:999px;
  --sh-1:0 2px 10px rgba(0,0,0,.35);
  --sh-2:0 14px 36px rgba(3,8,20,.55);
  --sh-glow:0 10px 30px rgba(23,224,192,.28);
  --sp-section:96px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-cn:"HarmonyOS Sans SC","PingFang SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  --font-en:"Inter","HarmonyOS Sans SC","PingFang SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  padding-bottom:88px;
  background:var(--bg-1);
  color:var(--tx-2);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  overflow-x:hidden;
  background-image:
    radial-gradient(900px 420px at 12% -8%,rgba(23,224,192,.10),transparent 62%),
    radial-gradient(720px 380px at 92% 4%,rgba(31,162,255,.10),transparent 60%);
  background-repeat:no-repeat;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color 180ms var(--ease)}
a:hover{color:var(--primary)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--tx-1);font-weight:700;letter-spacing:-.01em;line-height:1.3}
p{margin:0}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,textarea{font-family:inherit;font-size:15px;color:var(--tx-1)}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:4px}
::selection{background:rgba(23,224,192,.3);color:#fff}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.section{padding-block:var(--sp-section)}
.section-alt{background:linear-gradient(180deg,rgba(16,24,48,.0),rgba(16,24,48,.72) 22%,rgba(16,24,48,.72) 78%,rgba(16,24,48,0));}

/* ============ 头部导航 ============ */
.site-header{
  position:absolute;
  top:0;left:0;right:0;
  z-index:60;
  height:72px;
  background:var(--glass-bg);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
  box-shadow:var(--sh-1);
  transition:height 220ms var(--ease),background 220ms var(--ease),box-shadow 220ms var(--ease);
}
.site-header.is-stuck{
  position:fixed;
  height:64px;
  background:rgba(6,9,18,.92);
  -webkit-backdrop-filter:blur(18px) saturate(150%);
  backdrop-filter:blur(18px) saturate(150%);
  box-shadow:0 10px 28px rgba(2,6,16,.6);
}
.header-inner{
  height:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;flex-shrink:0;
  display:grid;place-items:center;
  border-radius:11px;
  background:linear-gradient(140deg,var(--primary),var(--primary-deep));
  color:#04140F;
  font-family:var(--font-en);
  font-weight:800;
  font-size:15px;
  letter-spacing:.02em;
  box-shadow:var(--sh-glow);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-family:var(--font-en);font-size:15px;letter-spacing:.08em;color:var(--tx-1)}
.brand-text em{font-style:normal;font-size:11px;color:var(--primary);letter-spacing:.14em}
.nav-desktop{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 14px;
  border-radius:10px;
  font-size:15px;
  color:var(--tx-2);
  transition:color 180ms var(--ease),background 180ms var(--ease);
}
.nav-link:hover{color:var(--tx-1);background:rgba(23,224,192,.08)}
.nav-link.is-active{color:var(--primary);background:var(--primary-soft)}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  border-radius:2px;background:linear-gradient(90deg,var(--primary),var(--secondary));
}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.icon-btn{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:10px;
  border:1px solid var(--line);
  background:rgba(16,24,48,.5);
  color:var(--tx-2);
  transition:color 180ms var(--ease),border-color 180ms var(--ease),background 180ms var(--ease);
}
.icon-btn:hover{color:var(--primary);border-color:rgba(23,224,192,.4)}
.menu-toggle{
  display:none;
  width:38px;height:38px;
  place-items:center;
  border-radius:10px;
  border:1px solid var(--line);
  background:rgba(16,24,48,.5);
  color:var(--tx-1);
}
.menu-toggle:hover{color:var(--primary);border-color:rgba(23,224,192,.4)}

/* ============ 按钮 ============ */
.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;
  white-space:nowrap;
  border:1px solid transparent;
  transition:transform 180ms var(--ease),box-shadow 180ms var(--ease),background 180ms var(--ease),border-color 180ms var(--ease),filter 180ms var(--ease);
}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-primary{
  background:linear-gradient(135deg,#17E0C0,#12B9A8);
  color:#04140F;
  box-shadow:var(--sh-glow);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 14px 34px rgba(23,224,192,.34);color:#04140F}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 18px rgba(23,224,192,.24)}
.btn-ghost{
  background:var(--glass-bg);
  border-color:var(--glass-brd);
  color:var(--tx-1);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{border-color:rgba(23,224,192,.5);transform:translateY(-1px);color:var(--tx-1)}
.btn-ghost:active{transform:translateY(1px)}
.btn-text{
  color:var(--primary);
  padding:0;
  height:auto;
  font-weight:600;
}
.btn-text:hover{color:var(--tx-1)}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;pointer-events:none}

/* ============ Hero ============ */
.page-hero{
  position:relative;
  padding:148px 0 84px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:linear-gradient(180deg,rgba(5,7,15,.62),rgba(10,15,30,.94) 72%,var(--bg-1)),
                   url("/assets/images/backpic/back-2.webp");
  background-size:cover,cover;
  background-position:center,center;
  z-index:-2;
}
.page-hero::after{
  content:"";
  position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(23,224,192,.5),transparent);
}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:48px;
  align-items:start;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:28px;
  padding:0 14px;
  border-radius:var(--r-badge);
  background:var(--primary-soft);
  border:1px solid rgba(23,224,192,.28);
  color:var(--primary);
  font-size:12.5px;
  letter-spacing:.06em;
}
.hero-title{
  margin:22px 0 18px;
  font-size:46px;
  line-height:1.22;
  letter-spacing:-.02em;
}
.hero-title span{color:var(--primary)}
.hero-sub{
  max-width:620px;
  font-size:17px;
  line-height:1.85;
  color:var(--tx-2);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-metrics{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:32px;
}
.metric-chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 14px;
  border-radius:var(--r-badge);
  border:1px solid var(--line);
  background:rgba(16,24,48,.5);
  font-size:13px;
  color:var(--tx-2);
}
.metric-chip i{color:var(--primary);font-size:12px}
.hero-panel{
  border-radius:var(--r-card);
  border:1px solid var(--glass-brd);
  background:var(--glass-bg);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--sh-2),0 0 0 1px rgba(23,224,192,.06);
  padding:24px;
}
.panel-figure{
  border-radius:var(--r-img);
  overflow:hidden;
  border:1px solid var(--line);
  aspect-ratio:16/9;
}
.panel-figure img{width:100%;height:100%;object-fit:cover}
.panel-title{
  display:flex;align-items:center;justify-content:space-between;
  margin:20px 0 14px;
}
.panel-title h2{font-size:17px}
.panel-title span{font-family:var(--font-en);font-size:12px;color:var(--tx-3);letter-spacing:.14em}
.panel-list li{
  display:flex;
  align-items:flex-start;
  gap:12px;
  padding:11px 0;
  border-top:1px dashed rgba(120,200,255,.14);
  font-size:14.5px;
}
.panel-list li:first-child{border-top:0}
.panel-list .num{
  font-family:var(--font-en);
  font-size:13px;
  font-weight:700;
  color:var(--primary);
  min-width:26px;
  padding-top:2px;
}

/* ============ 板块标题 ============ */
.section-head{margin-bottom:46px;max-width:760px}
.section-head .tag{
  display:inline-block;
  font-family:var(--font-en);
  font-size:12px;
  letter-spacing:.2em;
  color:var(--primary);
  margin-bottom:12px;
}
.section-head h2{font-size:30px;margin-bottom:14px}
.section-head p{font-size:16px;color:var(--tx-2)}

/* ============ 步骤长条 ============ */
.steps-strip{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:0;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.step-item{
  position:relative;
  padding:32px 26px 32px 0;
}
.step-item + .step-item{padding-left:26px}
.step-item + .step-item::before{
  content:"";
  position:absolute;left:0;top:24px;bottom:24px;width:1px;
  background:var(--line);
}
.step-num{
  font-family:var(--font-en);
  font-size:52px;
  font-weight:800;
  line-height:1;
  letter-spacing:-.04em;
  color:transparent;
  -webkit-text-stroke:1.4px rgba(23,224,192,.62);
  margin-bottom:16px;
}
.step-item:hover .step-num{-webkit-text-stroke:1.4px var(--primary)}
.step-item h3{font-size:18px;margin-bottom:8px}
.step-item p{font-size:14.5px;color:var(--tx-2)}
.step-note{
  margin-top:22px;
  display:flex;align-items:center;gap:10px;
  font-size:13.5px;color:var(--tx-3);
}
.step-note i{color:var(--primary)}

/* ============ 环境对照清单 ============ */
.env-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.env-card{
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(22,33,60,.62),rgba(10,15,30,.55));
  padding:24px;
  box-shadow:var(--sh-1);
  transition:border-color 180ms var(--ease),transform 180ms var(--ease);
}
.env-card:hover{border-color:rgba(23,224,192,.32);transform:translateY(-3px)}
.env-card h3{
  display:flex;align-items:center;gap:10px;
  font-size:18px;margin-bottom:6px;
}
.env-card h3 i{color:var(--primary);font-size:16px}
.env-card > p{font-size:14px;color:var(--tx-3);margin-bottom:16px}
.env-list dt{
  font-size:15px;
  font-weight:600;
  color:var(--tx-1);
  padding-top:14px;
  border-top:1px solid var(--line);
}
.env-list dt:first-of-type{border-top:0;padding-top:0}
.env-list dd{
  margin:6px 0 0;
  font-size:14.5px;
  color:var(--tx-2);
  padding-bottom:14px;
}

/* ============ 行卡（左编号右文案） ============ */
.row-cards{display:flex;flex-direction:column;gap:16px}
.row-card{
  display:flex;
  gap:26px;
  align-items:flex-start;
  padding:24px;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:var(--glass-bg);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  transition:border-color 180ms var(--ease),transform 180ms var(--ease),background 180ms var(--ease);
}
.row-card:hover{border-color:rgba(23,224,192,.34);transform:translateY(-3px);background:rgba(22,33,60,.6)}
.row-index{
  flex:0 0 74px;
  font-family:var(--font-en);
  font-size:34px;
  font-weight:800;
  line-height:1;
  letter-spacing:-.03em;
  color:var(--primary);
  padding-top:4px;
}
.row-body h3{font-size:18px;margin-bottom:8px}
.row-body p{font-size:15px;color:var(--tx-2)}
.row-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.tag-pill{
  display:inline-flex;align-items:center;
  height:26px;padding:0 12px;
  border-radius:var(--r-badge);
  background:var(--primary-soft);
  color:var(--primary);
  font-size:12px;
}

/* ============ 注意事项 ============ */
.caution-wrap{
  display:grid;
  grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);
  gap:48px;
  align-items:start;
}
.caution-intro h2{font-size:30px;margin-bottom:16px}
.caution-intro p{font-size:15.5px;margin-bottom:18px}
.caution-figure{
  margin-top:26px;
  border-radius:var(--r-img);
  overflow:hidden;
  border:1px solid var(--line);
}
.caution-figure img{width:100%;aspect-ratio:16/10;object-fit:cover}
.caution-list{display:flex;flex-direction:column;gap:0}
.caution-item{
  position:relative;
  padding:22px 0 22px 20px;
  border-top:1px solid var(--line);
}
.caution-item:first-child{border-top:0;padding-top:0}
.caution-item::before{
  content:"";
  position:absolute;left:0;top:24px;bottom:24px;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--primary),rgba(31,162,255,.5));
}
.caution-item:first-child::before{top:2px}
.caution-item h3{font-size:17px;margin-bottom:8px}
.caution-item p{font-size:14.5px;color:var(--tx-2)}
.caution-item .warn{
  display:inline-flex;align-items:center;gap:8px;
  margin-top:12px;
  font-size:13px;color:var(--tx-3);
}
.caution-item .warn i{color:var(--accent)}

/* ============ FAQ ============ */
.faq{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  gap:16px;
  padding:22px 0;
  font-size:16.5px;
  font-weight:700;
  color:var(--tx-1);
  transition:color 180ms var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--primary)}
.faq-num{
  font-family:var(--font-en);
  font-size:13px;
  font-weight:700;
  color:var(--primary);
  letter-spacing:.06em;
}
.faq-caret{margin-left:auto;color:var(--tx-3);font-size:13px;transition:transform 220ms var(--ease),color 220ms var(--ease)}
.faq-item[open] .faq-caret{transform:rotate(180deg);color:var(--primary)}
.faq-answer{
  padding:0 0 24px 44px;
  font-size:15px;
  line-height:1.85;
  color:var(--tx-2);
  animation:fadeIn 220ms var(--ease);
}
@keyframes fadeIn{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}

/* ============ CTA ============ */
.cta-band{
  border-radius:var(--r-card);
  border:1px solid var(--glass-brd);
  background:linear-gradient(135deg,rgba(23,224,192,.14),rgba(31,162,255,.08) 55%,rgba(16,24,48,.6));
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  box-shadow:var(--sh-2);
  padding:48px 44px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:28px;
}
.cta-band h2{font-size:28px;margin-bottom:12px}
.cta-band p{font-size:15.5px;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:var(--sp-section);
  background:var(--bg-0);
  border-top:1px solid var(--line);
  padding:64px 0 34px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:36px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-col p{font-size:14px;color:var(--tx-3);line-height:1.85}
.footer-col h4{
  font-size:15px;
  color:var(--tx-1);
  margin-bottom:16px;
}
.footer-col ul li{margin-bottom:10px;font-size:14px}
.footer-col ul li a{color:var(--tx-2)}
.footer-col ul li a:hover{color:var(--primary)}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:var(--tx-3)}
.footer-contact i{color:var(--primary);margin-top:5px;font-size:13px}
.footer-note{
  margin-top:42px;
  padding:20px 0 0;
  border-top:1px solid var(--line);
  font-size:13px;
  line-height:1.9;
  color:var(--tx-3);
}
.footer-bottom{
  margin-top:20px;
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  justify-content:space-between;
  font-size:13px;
  color:var(--tx-3);
}

/* ============ 吸底转化条 ============ */
.sticky-cta{
  position:fixed;
  left:50%;
  bottom:18px;
  transform:translate(-50%,140%);
  width:min(920px,calc(100% - 48px));
  height:64px;
  z-index:70;
  display:flex;
  align-items:center;
  gap:18px;
  padding:0 18px 0 24px;
  border-radius:16px;
  border:1px solid var(--glass-brd);
  background:rgba(8,12,26,.86);
  -webkit-backdrop-filter:blur(16px) saturate(150%);
  backdrop-filter:blur(16px) saturate(150%);
  box-shadow:var(--sh-2);
  opacity:0;
  pointer-events:none;
  transition:transform 240ms var(--ease),opacity 240ms var(--ease);
}
.sticky-cta.is-visible{transform:translate(-50%,0);opacity:1;pointer-events:auto}
.sticky-text{font-size:14.5px;color:var(--tx-2);flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.sticky-text strong{color:var(--tx-1);font-weight:600}
.btn-accent{
  background:linear-gradient(135deg,#FFB25C,#FF9E2C);
  color:#2A1503;
  box-shadow:0 10px 26px rgba(255,158,44,.26);
}
.btn-accent:hover{filter:brightness(1.05);transform:translateY(-1px);color:#2A1503}
.btn-accent:active{transform:translateY(1px)}
.sticky-close{
  width:32px;height:32px;flex-shrink:0;
  display:grid;place-items:center;
  border-radius:9px;
  border:1px solid var(--line);
  color:var(--tx-3);
  transition:color 180ms var(--ease),border-color 180ms var(--ease);
}
.sticky-close:hover{color:var(--tx-1);border-color:rgba(23,224,192,.4)}

/* ============ 移动端抽屉 ============ */
.drawer-mask{
  position:fixed;inset:0;
  background:rgba(3,6,14,.66);
  -webkit-backdrop-filter:blur(3px);
  backdrop-filter:blur(3px);
  opacity:0;visibility:hidden;
  transition:opacity 220ms var(--ease),visibility 220ms var(--ease);
  z-index:80;
}
.drawer-mask.is-open{opacity:1;visibility:visible}

/* ============ 响应式 ============ */
@media (min-width:1440px){
  .container{max-width:1280px}
}
@media (max-width:1279px){
  .hero-title{font-size:42px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:30px}
}
@media (max-width:1023px){
  :root{--sp-section:68px}
  .nav-desktop{
    position:fixed;
    top:0;right:0;
    width:82%;
    max-width:360px;
    height:100dvh;
    z-index:90;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    padding:96px 24px 32px;
    margin:0;
    background:rgba(8,12,26,.97);
    border-left:1px solid var(--glass-brd);
    box-shadow:-20px 0 50px rgba(2,6,16,.6);
    transform:translateX(105%);
    transition:transform 260ms var(--ease);
    overflow-y:auto;
  }
  .nav-desktop.is-open{transform:translateX(0)}
  .nav-link{
    height:auto;
    padding:18px 12px;
    font-size:18px;
    line-height:1.5;
    border-radius:12px;
    border-bottom:1px solid var(--line);
  }
  .nav-link.is-active::after{display:none}
  .menu-toggle{display:grid}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .hero-title{font-size:36px}
  .steps-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .step-item{padding:26px 20px}
  .step-item:nth-child(odd){padding-left:0}
  .step-item:nth-child(even)::before{display:none}
  .step-item:nth-child(3),.step-item:nth-child(4){border-top:1px solid var(--line)}
  .step-item:nth-child(3){padding-left:0}
  .step-num{font-size:44px}
  .caution-wrap{grid-template-columns:1fr;gap:34px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-band{padding:36px 28px}
}
@media (max-width:767px){
  :root{--sp-section:48px}
  body{font-size:15px;padding-bottom:104px}
  .container{padding:0 18px}
  .site-header{height:60px}
  .site-header.is-stuck{height:60px}
  .brand-mark{width:34px;height:34px;font-size:13px}
  .header-actions .btn{display:none}
  .page-hero{padding:118px 0 56px}
  .hero-title{font-size:28px}
  .hero-sub{font-size:15.5px}
  .hero-actions .btn{flex:1 1 100%}
  .section-head h2,.caution-intro h2{font-size:23px}
  .cta-band h2{font-size:22px}
  .steps-strip{grid-template-columns:1fr}
  .step-item,.step-item + .step-item{padding:24px 0;border-top:1px solid var(--line)}
  .step-item:first-child{border-top:0}
  .step-item + .step-item::before{display:none}
  .step-num{font-size:38px;margin-bottom:10px}
  .env-grid{grid-template-columns:1fr}
  .row-card{flex-direction:column;gap:12px;padding:20px}
  .row-index{font-size:28px;flex:none}
  .faq-answer{padding-left:0}
  .cta-band{padding:28px 20px;flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 100%}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .sticky-cta{
    left:0;right:0;bottom:0;
    width:100%;
    transform:translateY(140%);
    border-radius:16px 16px 0 0;
    height:68px;
    padding:0 14px 0 18px;
    gap:12px;
  }
  .sticky-cta.is-visible{transform:translateY(0)}
  .sticky-text{font-size:13px}
}
@media (max-width:480px){
  .page-hero::before{background-image:linear-gradient(180deg,rgba(5,7,15,.7),rgba(10,15,30,.96) 74%,var(--bg-1)),url("/assets/images/backpic/back-2.webp")}
  .hero-title{font-size:26px}
  .panel-figure img{aspect-ratio:4/3}
  .caution-figure img{aspect-ratio:4/3}
  .sticky-text span.long{display:none}
}

/* roulang page: category3 */
:root{
  --bg-0:#05070F;
  --bg-1:#0A0F1E;
  --bg-2:#101830;
  --bg-3:#16213C;
  --primary:#17E0C0;
  --primary-deep:#0E9C87;
  --primary-soft:rgba(23,224,192,.12);
  --secondary:#1FA2FF;
  --accent:#FF9E2C;
  --tx-1:#EAF2FF;
  --tx-2:#A3B6D4;
  --tx-3:#6C7E9C;
  --line:rgba(120,200,255,.14);
  --glass-bg:rgba(16,24,48,.55);
  --glass-brd:rgba(150,210,255,.18);
  --r-card:18px;
  --r-img:14px;
  --r-btn:12px;
  --r-badge:999px;
  --sh-1:0 2px 10px rgba(0,0,0,.35);
  --sh-2:0 14px 36px rgba(3,8,20,.55);
  --sh-glow:0 10px 30px rgba(23,224,192,.28);
  --ease:cubic-bezier(.22,.61,.36,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding-bottom:88px;
  background:var(--bg-1);
  color:var(--tx-2);
  font-family:"HarmonyOS Sans SC","PingFang SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;color:var(--tx-1);font-weight:700;letter-spacing:-0.01em;line-height:1.35;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
::selection{background:var(--primary);color:#04211C;}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;line-height:1;
  transition:all 180ms var(--ease);white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,#17E0C0 0%,#12B9A8 100%);
  color:#04211C;box-shadow:var(--sh-glow);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 14px 34px rgba(23,224,192,.38);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 14px rgba(23,224,192,.24);}
.btn-ghost{
  background:rgba(150,210,255,.06);border-color:var(--glass-brd);color:var(--tx-1);
}
.btn-ghost:hover{background:rgba(150,210,255,.12);border-color:rgba(23,224,192,.45);transform:translateY(-1px);}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn:focus-visible,.icon-btn:focus-visible,.menu-toggle:focus-visible,.faq-q:focus-visible,.tag-pill:focus-visible{
  outline:2px solid var(--primary);outline-offset:2px;
}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;cursor:not-allowed;transform:none;}

/* ===== 导航 ===== */
.site-header{
  position:absolute;top:0;left:0;right:0;z-index:60;height:72px;
  background:var(--glass-bg);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
  box-shadow:var(--sh-1);
  transition:background 240ms var(--ease),height 240ms var(--ease),box-shadow 240ms var(--ease);
}
.site-header.is-stuck{
  position:fixed;height:64px;background:rgba(6,9,18,.92);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  backdrop-filter:blur(18px) saturate(140%);
  box-shadow:0 10px 30px rgba(0,0,0,.45);
}
.header-inner{height:100%;display:flex;align-items:center;gap:24px;}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;border-radius:11px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,rgba(23,224,192,.9),rgba(31,162,255,.75));
  color:#04211C;font-weight:800;font-size:15px;letter-spacing:.02em;
  font-family:Inter,"HarmonyOS Sans SC",sans-serif;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-family:Inter,"HarmonyOS Sans SC",sans-serif;font-size:15px;letter-spacing:.08em;color:var(--tx-1);}
.brand-text em{font-style:normal;font-size:11px;color:var(--primary);letter-spacing:.18em;}
.nav-desktop{display:flex;align-items:center;gap:6px;margin-left:18px;}
.nav-link{
  position:relative;padding:9px 15px;border-radius:10px;font-size:15px;color:var(--tx-2);
  transition:color 180ms var(--ease),background 180ms var(--ease);
}
.nav-link:hover{color:var(--tx-1);background:rgba(150,210,255,.08);}
.nav-link.is-active{color:var(--primary);background:var(--primary-soft);}
.nav-link.is-active::after{
  content:"";position:absolute;left:15px;right:15px;bottom:3px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),rgba(31,162,255,.6));
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px;}
.icon-btn{
  width:40px;height:40px;border-radius:11px;border:1px solid var(--line);
  background:rgba(150,210,255,.06);color:var(--tx-2);cursor:pointer;
  display:flex;align-items:center;justify-content:center;transition:all 180ms var(--ease);
}
.icon-btn:hover{color:var(--primary);border-color:rgba(23,224,192,.45);background:var(--primary-soft);}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:11px;border:1px solid var(--line);
  background:rgba(150,210,255,.06);color:var(--tx-1);cursor:pointer;
  align-items:center;justify-content:center;
}
.drawer-mask{
  position:fixed;inset:0;background:rgba(3,6,14,.7);z-index:80;opacity:0;visibility:hidden;
  transition:opacity 220ms var(--ease),visibility 220ms var(--ease);
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:82%;max-width:340px;z-index:90;
  background:rgba(9,13,26,.97);border-left:1px solid var(--line);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  transform:translateX(102%);transition:transform 260ms var(--ease);
  padding:22px;display:flex;flex-direction:column;gap:6px;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.drawer a.drawer-link{
  font-size:18px;line-height:3.2;color:var(--tx-2);border-bottom:1px solid rgba(120,200,255,.08);
}
.drawer a.drawer-link.is-active{color:var(--primary);}
.drawer a.drawer-link:hover{color:var(--tx-1);}

/* ===== 内页 Banner ===== */
.page-hero{
  position:relative;padding:150px 0 72px;
  background-color:var(--bg-0);
  background-image:linear-gradient(100deg,rgba(5,7,15,.94) 0%,rgba(6,10,22,.82) 48%,rgba(6,10,22,.62) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:120px;
  background:linear-gradient(180deg,rgba(10,15,30,0) 0%,var(--bg-1) 100%);
}
.page-hero .container{position:relative;z-index:2;}
.crumb{
  display:flex;align-items:center;gap:8px;font-size:13px;color:var(--tx-3);margin-bottom:20px;flex-wrap:wrap;
}
.crumb a{color:var(--tx-2);transition:color 180ms var(--ease);}
.crumb a:hover{color:var(--primary);}
.crumb i{font-size:10px;color:var(--tx-3);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;border-radius:var(--r-badge);
  background:var(--primary-soft);border:1px solid rgba(23,224,192,.28);color:var(--primary);
  font-size:12.5px;letter-spacing:.06em;margin-bottom:18px;
}
.page-hero h1{
  font-size:44px;max-width:860px;margin-bottom:18px;
}
.page-hero h1 span{color:var(--primary);}
.hero-lead{
  max-width:680px;font-size:17px;color:var(--tx-2);line-height:1.9;margin-bottom:26px;
}
.hero-facts{display:flex;flex-wrap:wrap;gap:12px;}
.fact-chip{
  display:inline-flex;align-items:center;gap:8px;padding:8px 15px;border-radius:var(--r-badge);
  background:rgba(16,24,48,.6);border:1px solid var(--glass-brd);font-size:13px;color:var(--tx-2);
}
.fact-chip i{color:var(--primary);font-size:12px;}

/* ===== 锚点跳转条 ===== */
.anchor-bar{
  position:sticky;top:64px;z-index:40;background:rgba(8,12,24,.9);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.anchor-scroll{
  display:flex;gap:10px;overflow-x:auto;padding:14px 0;scrollbar-width:none;
}
.anchor-scroll::-webkit-scrollbar{display:none;}
.tag-pill{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:7px;padding:8px 16px;border-radius:var(--r-badge);
  background:rgba(150,210,255,.07);border:1px solid var(--line);color:var(--tx-2);
  font-size:13.5px;white-space:nowrap;transition:all 180ms var(--ease);
}
.tag-pill:hover{color:var(--tx-1);border-color:rgba(23,224,192,.45);background:var(--primary-soft);}
.tag-pill i{color:var(--primary);font-size:11px;}

/* ===== 通用板块 ===== */
.section{padding:96px 0;}
.section.tight{padding:72px 0;}
.section.alt{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.sec-head{max-width:720px;margin-bottom:44px;}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.sec-tag{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:.14em;
  color:var(--primary);text-transform:uppercase;margin-bottom:14px;font-family:Inter,sans-serif;
}
.sec-tag::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--primary);}
.sec-head h2{font-size:30px;margin-bottom:14px;}
.sec-head p{color:var(--tx-2);font-size:15.5px;}

/* ===== FAQ 手风琴 ===== */
.faq-group{margin-bottom:44px;}
.faq-group:last-child{margin-bottom:0;}
.group-title{
  display:flex;align-items:center;gap:12px;font-size:20px;margin-bottom:8px;scroll-margin-top:140px;
}
.group-title .dot{
  width:9px;height:9px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 5px var(--primary-soft);
}
.group-desc{font-size:14px;color:var(--tx-3);margin-bottom:14px;padding-left:21px;}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:flex-start;gap:16px;text-align:left;background:transparent;
  border:0;padding:22px 4px;cursor:pointer;color:var(--tx-1);font-size:16px;font-weight:700;
  transition:color 180ms var(--ease);
}
.faq-q:hover{color:var(--primary);}
.faq-num{
  font-family:Inter,sans-serif;font-size:13px;font-weight:700;color:var(--primary);
  letter-spacing:.04em;padding-top:3px;flex:0 0 auto;
}
.faq-q .qtext{flex:1;}
.faq-ico{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--tx-3);font-size:11px;
  transition:all 220ms var(--ease);margin-top:2px;
}
.faq-item.is-open .faq-q{color:var(--primary);}
.faq-item.is-open .faq-ico{
  transform:rotate(45deg);color:var(--primary);border-color:rgba(23,224,192,.5);background:var(--primary-soft);
}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height 240ms var(--ease);
}
.faq-a-inner{padding:0 4px 24px 45px;font-size:15px;line-height:1.85;color:var(--tx-2);}

/* ===== 安全提示卡 ===== */
.safety-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.safety-card{
  position:relative;padding:26px;border-radius:var(--r-card);
  background:var(--glass-bg);border:1px solid var(--glass-brd);box-shadow:var(--sh-2);
  transition:transform 200ms var(--ease),border-color 200ms var(--ease);
}
.safety-card:hover{transform:translateY(-3px);border-color:rgba(23,224,192,.35);}
.safety-card.wide{grid-column:1 / -1;}
.safety-ico{
  width:48px;height:48px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:var(--primary-soft);border:1px solid rgba(23,224,192,.28);color:var(--primary);
  font-size:18px;margin-bottom:16px;
}
.safety-card h3{font-size:18px;margin-bottom:10px;}
.safety-card p{font-size:14.8px;color:var(--tx-2);}
.safety-list{margin-top:14px;display:grid;gap:8px;}
.safety-list li{
  display:flex;gap:10px;font-size:14.5px;color:var(--tx-2);
}
.safety-list i{color:var(--primary);font-size:12px;padding-top:6px;}

/* ===== 联系表单 ===== */
.contact-wrap{
  display:grid;grid-template-columns:1fr 1.05fr;gap:42px;align-items:start;
}
.contact-copy h2{font-size:28px;margin-bottom:16px;}
.contact-copy p{font-size:15.5px;margin-bottom:22px;}
.contact-points{display:grid;gap:14px;}
.contact-points li{
  display:flex;gap:12px;padding:15px 18px;border-radius:14px;
  background:rgba(16,24,48,.5);border:1px solid var(--line);
  font-size:14.5px;color:var(--tx-2);
}
.contact-points i{color:var(--primary);padding-top:5px;font-size:13px;}
.form-card{
  padding:28px;border-radius:var(--r-card);
  background:var(--glass-bg);border:1px solid var(--glass-brd);box-shadow:var(--sh-2);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13.5px;color:var(--tx-2);margin-bottom:8px;}
.field label .req{color:var(--accent);margin-left:4px;}
.field input,.field textarea,.field select{
  width:100%;padding:12px 14px;border-radius:var(--r-btn);
  background:rgba(10,15,30,.7);border:1px solid var(--line);color:var(--tx-1);
  font-size:14.5px;transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.field textarea{resize:vertical;min-height:118px;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:#4E5F7C;}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(23,224,192,.2);
}
.field.has-error input,.field.has-error textarea{border-color:#FF6B5E;}
.field .err-tip{display:none;font-size:13px;color:#FF8A7E;margin-top:6px;}
.field.has-error .err-tip{display:block;}
.form-note{font-size:13px;color:var(--tx-3);margin-top:14px;line-height:1.75;}
.form-actions{margin-top:6px;display:flex;align-items:center;gap:14px;flex-wrap:wrap;}

/* ===== 底部 CTA ===== */
.cta-banner{
  position:relative;overflow:hidden;border-radius:22px;padding:56px 48px;
  background:linear-gradient(120deg,rgba(23,224,192,.14) 0%,rgba(16,24,48,.85) 42%,rgba(31,162,255,.16) 100%);
  border:1px solid var(--glass-brd);box-shadow:var(--sh-2);
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-banner::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(120,200,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(120,200,255,.06) 1px,transparent 1px);
  background-size:44px 44px;opacity:.5;pointer-events:none;
}
.cta-banner > *{position:relative;z-index:2;}
.cta-banner h2{font-size:28px;margin-bottom:12px;}
.cta-banner p{font-size:15.5px;color:var(--tx-2);max-width:560px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ===== 页脚 ===== */
.site-footer{
  background:var(--bg-0);border-top:1px solid var(--line);padding:72px 0 30px;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:36px;margin-bottom:44px;
}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px;}
.footer-col h4{font-size:15.5px;margin-bottom:18px;color:var(--tx-1);}
.footer-col p{font-size:14px;color:var(--tx-3);line-height:1.85;}
.footer-col ul li{margin-bottom:11px;}
.footer-col ul li a{font-size:14.2px;color:var(--tx-2);transition:color 180ms var(--ease),padding-left 180ms var(--ease);}
.footer-col ul li a:hover{color:var(--primary);padding-left:4px;}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:var(--tx-3);line-height:1.7;}
.footer-contact i{color:var(--primary);font-size:13px;padding-top:6px;}
.footer-note{
  font-size:13px;color:var(--tx-3);line-height:1.85;padding:20px 0;
  border-top:1px solid rgba(120,200,255,.1);border-bottom:1px solid rgba(120,200,255,.1);
}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding-top:22px;font-size:13px;color:var(--tx-3);
}

/* ===== 吸底转化条 ===== */
.sticky-bar{
  position:fixed;left:50%;bottom:16px;transform:translate(-50%,140%);
  width:min(920px,calc(100% - 48px));height:64px;z-index:70;
  display:flex;align-items:center;gap:16px;padding:0 14px 0 22px;
  background:rgba(12,18,36,.86);
  -webkit-backdrop-filter:blur(16px) saturate(140%);backdrop-filter:blur(16px) saturate(140%);
  border:1px solid var(--glass-brd);border-radius:16px;box-shadow:var(--sh-2);
  opacity:0;visibility:hidden;
  transition:transform 300ms var(--ease),opacity 300ms var(--ease),visibility 300ms var(--ease);
}
.sticky-bar.is-show{transform:translate(-50%,0);opacity:1;visibility:visible;}
.sticky-bar .sb-text{flex:1;min-width:0;}
.sticky-bar .sb-text strong{display:block;font-size:14.5px;color:var(--tx-1);}
.sticky-bar .sb-text span{display:block;font-size:12.5px;color:var(--tx-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.sb-close{
  width:34px;height:34px;flex:0 0 auto;border-radius:10px;border:1px solid var(--line);
  background:transparent;color:var(--tx-3);cursor:pointer;display:flex;align-items:center;justify-content:center;
  transition:all 180ms var(--ease);
}
.sb-close:hover{color:var(--tx-1);border-color:var(--glass-brd);background:rgba(150,210,255,.08);}

/* ===== 响应式 ===== */
@media (min-width:1440px){
  :root{--container:1280px;}
}
@media (max-width:1279px){
  .nav-desktop{margin-left:8px;}
  .nav-link{padding:9px 11px;font-size:14.5px;}
}
@media (max-width:1023px){
  .nav-desktop{display:none;}
  .menu-toggle{display:flex;}
  .header-actions .btn-sm{display:none;}
  .page-hero{padding:130px 0 60px;}
  .page-hero h1{font-size:36px;}
  .section{padding:68px 0;}
  .safety-grid{grid-template-columns:1fr;}
  .contact-wrap{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .cta-banner{padding:44px 36px;}
}
@media (max-width:767px){
  body{padding-bottom:96px;}
  .container{padding:0 18px;}
  .site-header,.site-header.is-stuck{height:60px;}
  .brand-mark{width:34px;height:34px;font-size:13px;}
  .page-hero{padding:112px 0 52px;background-image:linear-gradient(160deg,rgba(5,7,15,.95) 0%,rgba(6,10,22,.84) 60%,rgba(6,10,22,.72) 100%),url("/assets/images/backpic/back-2.webp");}
  .page-hero h1{font-size:29px;}
  .hero-lead{font-size:15.5px;}
  .section{padding:48px 0;}
  .sec-head h2{font-size:24px;}
  .sec-head{margin-bottom:30px;}
  .faq-q{font-size:15.5px;padding:18px 2px;gap:12px;}
  .faq-a-inner{padding:0 2px 20px 34px;font-size:14.5px;}
  .anchor-bar{top:60px;}
  .safety-card{padding:20px;}
  .form-card{padding:20px;}
  .form-row{grid-template-columns:1fr;gap:0;}
  .cta-banner{padding:32px 22px;border-radius:18px;}
  .cta-banner h2{font-size:22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .sticky-bar{width:100%;left:0;bottom:0;transform:translate(0,140%);border-radius:14px 14px 0 0;height:68px;padding:0 12px 0 16px;}
  .sticky-bar.is-show{transform:translate(0,0);}
  .sticky-bar .btn{padding:10px 14px;font-size:13.5px;}
}
@media (max-width:480px){
  .page-hero{padding:100px 0 44px;}
  .page-hero h1{font-size:25px;}
  .hero-facts{gap:8px;}
  .fact-chip{font-size:12px;padding:6px 12px;}
  .group-title{font-size:17.5px;}
  .safety-card h3{font-size:16.5px;}
  .sticky-bar .sb-text span{display:none;}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:0.01ms !important;animation-duration:0.01ms !important;scroll-behavior:auto !important;}
}