/* roulang page: index */
:root{
  --ink-900:#05070F;
  --ink-800:#0A0F1E;
  --ink-700:#101A33;
  --brand:#23E5D5;
  --brand-deep:#14B8C6;
  --accent:#7C5CFF;
  --warn:#FF7A45;
  --text:#EAF2FF;
  --text-2:#A9B7CE;
  --text-3:#6E7C96;
  --line:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.045);
  --glass-strong:rgba(255,255,255,.07);
  --radius:16px;
  --radius-lg:20px;
  --shadow:0 18px 48px rgba(0,0,0,.45);
  --shadow-soft:0 10px 30px rgba(0,0,0,.35);
  --container:1240px;
  --gutter:24px;
  --section:96px;
  --mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
  --font:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --grad-line:linear-gradient(135deg,rgba(35,229,213,.55),rgba(124,92,255,.12) 60%,transparent);
  --grad-brand:linear-gradient(120deg,#23E5D5,#14B8C6 55%,#7C5CFF);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(900px 520px at 82% -8%,rgba(124,92,255,.20),transparent 62%),
    radial-gradient(760px 480px at 6% 4%,rgba(35,229,213,.13),transparent 60%),
    linear-gradient(180deg,#05070F,#070C1A 45%,#05070F);
  z-index:-2;
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  background-image:linear-gradient(rgba(255,255,255,.022) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.022) 1px,transparent 1px);
  background-size:64px 64px;
  z-index:-1;
  pointer-events:none;
  mask-image:radial-gradient(circle at 50% 22%,#000 12%,transparent 78%);
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:#7BF3E8}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}

/* Foundation 默认样式覆盖 */
body,button,input,select,textarea{font-family:var(--font)}
a,button,.button{color:inherit}
.button,.button.primary,.button.secondary,.button.hollow{
  background:none;border:0;border-radius:0;padding:0;margin:0;color:inherit;font-size:inherit;
}
.tabs,.tabs-content,.accordion,.menu,.dropdown-pane{background:none;border:0}
.row{max-width:none;margin:0}
.row .row{margin:0}
[type=text],[type=email],[type=tel],textarea{background:none;border:0;box-shadow:none;margin:0;height:auto}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 var(--gutter);
}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .28s ease,border-color .28s ease,backdrop-filter .28s ease;
}
.site-header.is-scrolled{
  background:rgba(6,9,20,.78);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom-color:var(--line);
}
.nav-inner{
  height:64px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-weight:700;
  color:var(--text);
  flex:none;
}
.brand:hover{color:var(--text)}
.brand-mark{
  width:32px;height:32px;flex:none;
  border-radius:10px;
  background:var(--grad-brand);
  display:grid;place-items:center;
  box-shadow:0 0 22px rgba(35,229,213,.35);
  position:relative;
}
.brand-mark::before{
  content:"";
  width:12px;height:12px;
  border-radius:4px;
  border:2px solid rgba(5,7,15,.85);
  transform:rotate(45deg);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text b{font-size:16px;letter-spacing:.02em}
.brand-text span{font-size:11px;color:var(--text-3);letter-spacing:.14em}

.nav-links{display:flex;align-items:center;gap:32px;margin-left:8px}
.nav-links a{
  position:relative;
  color:var(--text-2);
  font-size:15px;
  padding:6px 0;
  white-space:nowrap;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-16px;
  height:2px;
  background:var(--brand);
  opacity:0;
  transform:scaleX(.4);
  transition:opacity .22s ease,transform .22s ease;
}
.nav-links a:hover{color:var(--text)}
.nav-links a:hover::after{opacity:.5;transform:scaleX(1)}
.nav-links a.is-active{color:var(--text);font-weight:600}
.nav-links a.is-active::after{opacity:1;transform:scaleX(1)}

.nav-right{display:flex;align-items:center;gap:14px;flex:none}
.nav-search{
  display:flex;align-items:center;gap:8px;
  height:38px;padding:0 14px;
  border-radius:999px;
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--text-3);
  font-size:13px;
}
.nav-search span{color:var(--text-3)}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  border:1px solid transparent;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,filter .2s ease;
  white-space:nowrap;
}
.btn-primary{
  padding:11px 22px;
  border-radius:999px;
  background:var(--grad-brand);
  color:#05121A;
  box-shadow:0 0 24px rgba(35,229,213,.35);
}
.btn-primary:hover{color:#05121A;transform:translateY(-2px);box-shadow:0 0 32px rgba(35,229,213,.5);filter:brightness(1.06)}
.btn-primary:active{transform:none;box-shadow:0 0 14px rgba(35,229,213,.3)}
.btn-ghost{
  padding:11px 22px;
  border-radius:12px;
  background:var(--glass);
  border-color:var(--line);
  color:var(--text);
}
.btn-ghost:hover{
  color:var(--text);
  border-color:rgba(35,229,213,.6);
  background:rgba(255,255,255,.085);
  transform:translateY(-2px);
}
.btn-ghost:active{transform:none}
.btn-sm{padding:8px 16px;font-size:13px;border-radius:999px}
.btn-block{width:100%}
.btn[disabled]{opacity:.65;cursor:not-allowed;transform:none}

.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:12px;
  border:1px solid var(--line);
  background:var(--glass);
  align-items:center;justify-content:center;
  cursor:pointer;
}
.nav-toggle i{
  display:block;width:18px;height:2px;background:var(--text);position:relative;border-radius:2px;
}
.nav-toggle i::before,.nav-toggle i::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px;
}
.nav-toggle i::before{top:-6px}
.nav-toggle i::after{top:6px}

.mobile-drawer{
  position:fixed;
  top:0;right:0;
  width:min(82vw,340px);
  height:100%;
  background:rgba(8,12,24,.96);
  backdrop-filter:blur(18px);
  border-left:1px solid var(--line);
  transform:translateX(102%);
  transition:transform .3s ease;
  z-index:80;
  padding:22px 20px;
  display:flex;flex-direction:column;gap:8px;
}
.mobile-drawer.is-open{transform:translateX(0)}
.mobile-drawer a{
  display:block;
  padding:14px 12px;
  border-radius:12px;
  color:var(--text-2);
  font-size:16px;
  border:1px solid transparent;
}
.mobile-drawer a:hover,.mobile-drawer a.is-active{
  color:var(--text);
  background:var(--glass);
  border-color:var(--line);
}
.drawer-close{
  align-self:flex-end;
  width:40px;height:40px;
  border-radius:12px;
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--text);
  cursor:pointer;
  font-size:18px;
  line-height:1;
}
.drawer-mask{
  position:fixed;inset:0;
  background:rgba(5,7,15,.72);
  opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;
  z-index:70;
}
.drawer-mask.is-open{opacity:1;visibility:visible}

/* ============ 通用板块 ============ */
main{display:block}
.section{padding:var(--section) 0}
.section-tight{padding:calc(var(--section) * .7) 0}
.section-head{margin-bottom:28px;display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap}
.section-head h2{
  position:relative;
  padding-left:16px;
  font-size:32px;
  line-height:1.35;
  font-weight:700;
  letter-spacing:.01em;
}
.section-head h2::before{
  content:"";
  position:absolute;
  left:0;top:.22em;bottom:.22em;
  width:4px;
  border-radius:4px;
  background:linear-gradient(180deg,var(--brand),var(--accent));
}
.section-head h3{font-size:18px;font-weight:600;color:var(--text-2)}
.section-desc{color:var(--text-2);font-size:15px;max-width:720px;margin-top:10px;padding-left:16px}
.link-more{
  font-size:14px;color:var(--brand);
  display:inline-flex;align-items:center;gap:6px;
  border-bottom:1px solid rgba(35,229,213,.35);
  padding-bottom:2px;
}
.link-more:hover{border-bottom-color:var(--brand)}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;
  letter-spacing:.16em;
  color:var(--brand);
  padding:6px 14px;
  border-radius:999px;
  border:1px solid rgba(35,229,213,.32);
  background:rgba(35,229,213,.07);
}
.badge{
  display:inline-flex;align-items:center;
  font-size:12px;line-height:1;
  padding:6px 10px;
  border-radius:999px;
  border:1px solid rgba(124,92,255,.4);
  background:rgba(124,92,255,.14);
  color:#CDBFFF;
  letter-spacing:.03em;
  white-space:nowrap;
}
.badge-cyan{border-color:rgba(35,229,213,.4);background:rgba(35,229,213,.12);color:#96F6EC}
.badge-warn{border-color:rgba(255,122,69,.45);background:rgba(255,122,69,.14);color:#FFB99B}
.num{font-family:var(--mono);font-variant-numeric:tabular-nums;letter-spacing:-.01em}

.glass{
  background:var(--glass);
  border:1px solid transparent;
  border-image:var(--grad-line) 1;
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  position:relative;
}
.glass::before{
  content:"";
  position:absolute;left:0;right:0;top:0;height:1px;
  background:rgba(255,255,255,.06);
  border-radius:var(--radius) var(--radius) 0 0;
}

/* ============ Hero ============ */
.hero{
  padding:calc(64px + 56px) 0 72px;
  position:relative;
}
.hero-grid{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:48px;
  align-items:center;
}
.hero h1{
  font-size:44px;
  line-height:1.25;
  font-weight:800;
  letter-spacing:.01em;
  margin:20px 0 18px;
}
.hero h1 em{
  font-style:normal;
  background:linear-gradient(100deg,#23E5D5,#7C5CFF 78%);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-sub{
  font-size:17px;
  color:var(--text-2);
  max-width:520px;
  margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:36px}
.metrics{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
  max-width:560px;
}
.metric{
  padding:14px 16px;
  border-radius:14px;
  background:rgba(255,255,255,.035);
  border:1px solid var(--line);
}
.metric b{
  display:block;
  font-size:22px;
  font-family:var(--mono);
  font-variant-numeric:tabular-nums;
  color:var(--text);
  line-height:1.3;
}
.metric span{font-size:13px;color:var(--text-3)}

.hero-visual{position:relative}
.hero-media{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  aspect-ratio:4/5;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  background:var(--ink-800);
}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media::after{
  content:"";
  position:absolute;inset:0;
  background:
    repeating-linear-gradient(180deg,rgba(35,229,213,.10) 0 1px,transparent 1px 5px),
    linear-gradient(180deg,rgba(5,7,15,.05),rgba(5,7,15,.72));
  opacity:.65;
  pointer-events:none;
}
.float-card{
  position:absolute;
  left:-16px;
  bottom:-24px;
  right:16px;
  max-width:320px;
  padding:18px 20px;
  border-radius:var(--radius);
  background:rgba(12,18,34,.72);
  border:1px solid rgba(35,229,213,.28);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
}
.float-card b{
  display:block;
  font-size:26px;
  font-family:var(--mono);
  font-variant-numeric:tabular-nums;
  color:var(--brand);
  line-height:1.2;
}
.float-card p{font-size:13px;color:var(--text-2);margin:6px 0 14px}

/* ============ 优惠阶梯 ============ */
.stairs{display:flex;flex-direction:column;gap:16px;margin-top:28px}
.stair{
  display:grid;
  grid-template-columns:auto 1fr auto;
  align-items:center;
  gap:20px;
  padding:20px 24px;
  border-radius:var(--radius);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow-soft);
  transition:transform .22s ease,border-color .22s ease;
}
.stair:hover{transform:translateY(-3px);border-color:rgba(35,229,213,.45)}
.stair-no{
  width:38px;height:38px;flex:none;
  border-radius:12px;
  display:grid;place-items:center;
  font-family:var(--mono);
  font-size:15px;
  font-weight:700;
  color:#05121A;
  background:var(--grad-brand);
}
.stair h3{font-size:19px;font-weight:700;margin-bottom:4px}
.stair p{font-size:14px;color:var(--text-2)}
.stair-meta{font-size:13px;color:var(--text-3);text-align:right;white-space:nowrap}
.stair:nth-child(1){width:100%}
.stair:nth-child(2){width:calc(100% - 24px);margin-left:24px}
.stair:nth-child(3){width:calc(100% - 48px);margin-left:48px}
.stair:nth-child(4){
  width:calc(100% - 72px);
  margin-left:72px;
  border-color:rgba(124,92,255,.5);
  background:linear-gradient(120deg,rgba(124,92,255,.16),rgba(35,229,213,.06));
}
.stair:nth-child(4) .stair-no{background:linear-gradient(120deg,#7C5CFF,#23E5D5);color:#0A0616}

/* ============ 套餐对比 ============ */
.compare-wrap{margin-top:28px;border-radius:var(--radius-lg);overflow:hidden}
.compare-table{
  width:100%;
  border-collapse:collapse;
  font-size:15px;
}
.compare-table th,.compare-table td{
  padding:16px 18px;
  text-align:left;
  border-bottom:1px solid var(--line);
}
.compare-table thead th{
  font-size:14px;
  color:var(--text-2);
  font-weight:600;
  background:rgba(255,255,255,.03);
}
.compare-table tbody tr:last-child th,.compare-table tbody tr:last-child td{border-bottom:0}
.compare-table tbody th{font-weight:500;color:var(--text-2);width:26%}
.compare-table td{color:var(--text)}
.col-main{
  background:rgba(124,92,255,.10);
  position:relative;
  box-shadow:inset 0 0 0 1px rgba(124,92,255,.35);
}
.compare-table thead th.col-main{color:#CFC3FF}
.col-main .pick{
  position:absolute;
  top:-1px;right:10px;
  font-size:11px;
  padding:4px 10px;
  border-radius:0 0 10px 10px;
  background:linear-gradient(120deg,#7C5CFF,#23E5D5);
  color:#0A0616;
  font-weight:700;
  letter-spacing:.06em;
}
.price-cell{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:19px}
.compare-cards{display:none}

/* ============ 限时入口 ============ */
.limited{
  border-radius:var(--radius-lg);
  border:1px solid rgba(255,122,69,.28);
  background:linear-gradient(120deg,rgba(255,122,69,.12),rgba(124,92,255,.08) 60%,rgba(35,229,213,.05));
  padding:26px;
  margin-top:28px;
}
.count-bar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
  padding:16px 20px;
  border-radius:14px;
  background:rgba(5,7,15,.5);
  border:1px solid var(--line);
}
.count-bar h3{font-size:18px;font-weight:700;display:flex;align-items:center;gap:10px}
.count-bar p{font-size:14px;color:var(--text-2);margin-top:4px}
.clock{display:flex;align-items:center;gap:8px}
.clock span{
  min-width:52px;
  text-align:center;
  font-family:var(--mono);
  font-variant-numeric:tabular-nums;
  font-size:22px;
  font-weight:700;
  color:#FFC7AE;
  padding:8px 10px;
  border-radius:10px;
  background:rgba(255,122,69,.12);
  border:1px solid rgba(255,122,69,.32);
}
.clock i{font-style:normal;color:rgba(255,199,174,.6)}

.coupons{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:22px}
.coupon{
  position:relative;
  border-radius:var(--radius);
  background:rgba(10,15,30,.72);
  border:1px solid var(--line);
  padding:20px 22px;
  box-shadow:var(--shadow-soft);
  transition:transform .22s ease,border-color .22s ease;
}
.coupon:hover{transform:translateY(-3px);border-color:rgba(255,122,69,.45)}
.coupon::before,.coupon::after{
  content:"";
  position:absolute;
  width:18px;height:18px;
  border-radius:50%;
  background:var(--ink-900);
  top:calc(50% - 9px);
}
.coupon::before{left:-10px}
.coupon::after{right:-10px}
.coupon h3{font-size:18px;font-weight:700;margin-bottom:6px}
.coupon p{font-size:14px;color:var(--text-2);padding-bottom:14px;border-bottom:1px dashed rgba(255,255,255,.16);margin-bottom:14px}
.coupon b{font-family:var(--mono);font-variant-numeric:tabular-nums;color:#FFB99B;font-size:20px}

/* ============ 表单 ============ */
.consult{display:grid;grid-template-columns:6fr 4fr;gap:32px;align-items:start;margin-top:28px}
.form-card{padding:28px;border-radius:var(--radius-lg);background:var(--glass);border:1px solid var(--line);box-shadow:var(--shadow)}
.field{margin-bottom:20px}
.field label{display:block;font-size:13px;color:var(--text-2);margin-bottom:8px;letter-spacing:.03em}
.field input,.field textarea,.field select{
  width:100%;
  padding:12px 14px;
  font-size:15px;
  color:var(--text);
  background:rgba(5,7,15,.5);
  border:1px solid var(--line);
  border-radius:12px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field textarea{min-height:120px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:#54627a}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;
  border-color:rgba(35,229,213,.75);
  box-shadow:0 0 0 3px rgba(35,229,213,.16),0 0 22px rgba(35,229,213,.22);
  background:rgba(5,7,15,.72);
}
.field.is-error input,.field.is-error textarea{border-color:rgba(255,122,69,.85);box-shadow:0 0 0 3px rgba(255,122,69,.12)}
.field-note{font-size:12.5px;color:#FFB99B;margin-top:6px;display:none}
.field.is-error .field-note{display:block}
.form-foot{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:6px}
.form-tip{font-size:13px;color:var(--text-3)}
.form-status{font-size:14px;color:var(--brand);display:none}
.form-status.is-on{display:block}

.info-panel{padding:26px;border-radius:var(--radius-lg);background:rgba(12,18,34,.6);border:1px solid var(--line);box-shadow:var(--shadow)}
.info-panel h3{font-size:19px;font-weight:700;margin-bottom:14px}
.info-list li{
  display:flex;gap:12px;
  padding:14px 0;
  border-bottom:1px solid var(--line);
  font-size:14px;
  color:var(--text-2);
}
.info-list li:last-child{border-bottom:0}
.info-list b{color:var(--text);font-weight:600;display:block;margin-bottom:2px;font-size:15px}
.dot{
  width:8px;height:8px;border-radius:50%;flex:none;margin-top:8px;
  background:var(--brand);box-shadow:0 0 12px rgba(35,229,213,.7);
}

/* ============ 资讯列表 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.news-card{
  display:flex;flex-direction:column;
  border-radius:var(--radius);
  overflow:hidden;
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow-soft);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.news-card:hover{transform:translateY(-3px);border-color:rgba(35,229,213,.55);box-shadow:var(--shadow)}
.news-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--ink-800)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .22s ease-out}
.news-card:hover .news-thumb img{transform:scale(1.04)}
.news-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1}
.news-body h3{
  font-size:19px;font-weight:700;line-height:1.5;margin:12px 0 10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-body h3 a{color:var(--text)}
.news-body h3 a:hover{color:var(--brand)}
.news-body p{
  font-size:14px;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  margin-bottom:16px;
}
.news-foot{
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.news-foot .arrow{color:var(--brand);font-size:16px;transition:transform .22s ease}
.news-card:hover .news-foot .arrow{transform:translateX(4px)}
.empty-state{
  padding:56px 28px;
  text-align:center;
  border-radius:var(--radius-lg);
  background:var(--glass);
  border:1px solid var(--line);
}
.empty-state svg{width:52px;height:52px;margin:0 auto 16px;display:block;stroke:var(--brand);opacity:.85}
.empty-state p{color:var(--text-2);margin-bottom:16px}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:14px;margin-top:28px}
.faq-item{
  border-radius:var(--radius);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow-soft);
  overflow:hidden;
  transition:border-color .22s ease;
}
.faq-item.is-open{border-color:rgba(35,229,213,.5)}
.faq-q{
  width:100%;
  display:flex;align-items:center;gap:14px;
  padding:20px 22px;
  background:none;border:0;
  color:var(--text);
  font-size:18px;
  font-weight:600;
  text-align:left;
  cursor:pointer;
}
.faq-q .plus{
  width:26px;height:26px;flex:none;
  border-radius:8px;
  display:grid;place-items:center;
  border:1px solid rgba(35,229,213,.4);
  color:var(--brand);
  font-size:16px;
  line-height:1;
  transition:transform .22s ease,background .22s ease;
}
.faq-item.is-open .plus{transform:rotate(45deg);background:rgba(35,229,213,.14)}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .28s ease,opacity .18s ease;
  opacity:0;
}
.faq-item.is-open .faq-a{opacity:1}
.faq-a-inner{padding:0 22px 22px 62px;color:var(--text-2);font-size:15px}

/* ============ CTA 条 ============ */
.cta-bar{
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  padding:32px 34px;
  border-radius:var(--radius-lg);
  background:linear-gradient(120deg,rgba(35,229,213,.14),rgba(124,92,255,.18));
  border:1px solid rgba(124,92,255,.34);
  box-shadow:var(--shadow);
}
.cta-bar h2{font-size:26px;font-weight:700;line-height:1.4}
.cta-bar p{color:var(--text-2);font-size:15px;margin-top:8px}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:var(--section);
  padding-top:56px;
  border-top:1px solid transparent;
  border-image:linear-gradient(90deg,rgba(35,229,213,.5),rgba(124,92,255,.3),transparent) 1;
  background:linear-gradient(180deg,rgba(10,15,30,.6),rgba(5,7,15,.95));
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-col p{font-size:14px;color:var(--text-2);max-width:320px}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:16px;color:var(--text)}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{font-size:14px;color:var(--text-2)}
.footer-col ul a:hover{color:var(--brand)}
.footer-contact li{font-size:14px;color:var(--text-2);margin-bottom:10px}
.footer-contact b{color:var(--text);font-weight:600}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-3)}
.footer-bottom a:hover{color:var(--text-2)}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .hero h1{font-size:38px}
  .section-head h2{font-size:28px}
}
@media (max-width:992px){
  :root{--gutter:20px;--section:72px}
  .nav-links{display:none}
  .nav-search{display:none}
  .nav-toggle{display:flex}
  .hero{padding:calc(64px + 40px) 0 56px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero h1{font-size:34px}
  .hero-media{aspect-ratio:16/10}
  .float-card{position:relative;left:0;right:0;bottom:0;margin-top:-24px;margin-left:16px;max-width:none}
  .consult{grid-template-columns:1fr}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .coupons{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .section-head h2{font-size:28px}
  .stair:nth-child(2),.stair:nth-child(3),.stair:nth-child(4){width:100%;margin-left:0}
}
@media (max-width:768px){
  :root{--section:56px;--gutter:16px}
  .hero h1{font-size:30px}
  .hero-sub{font-size:16px}
  .metrics{grid-template-columns:1fr;gap:12px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .section-head h2{font-size:23px}
  .news-grid{grid-template-columns:1fr}
  .compare-wrap{display:none}
  .compare-cards{display:grid;gap:18px;margin-top:24px}
  .compare-card{
    padding:22px;
    border-radius:var(--radius);
    background:var(--glass);
    border:1px solid var(--line);
    box-shadow:var(--shadow-soft);
    position:relative;
  }
  .compare-card.is-main{border-color:rgba(124,92,255,.5);background:linear-gradient(120deg,rgba(124,92,255,.14),rgba(35,229,213,.05))}
  .compare-card h3{font-size:19px;font-weight:700;margin-bottom:6px}
  .compare-card .price-cell{margin-bottom:14px}
  .compare-card ul li{
    display:flex;gap:10px;
    font-size:14px;color:var(--text-2);
    padding:9px 0;border-bottom:1px solid var(--line);
  }
  .compare-card ul li:last-child{border-bottom:0}
  .compare-card .tag{position:absolute;top:16px;right:16px}
  .faq-q{font-size:16px;padding:18px}
  .faq-a-inner{padding:0 18px 20px 54px}
  .cta-bar{padding:26px 22px;flex-direction:column;align-items:flex-start}
  .cta-bar h2{font-size:22px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .form-card,.info-panel{padding:22px}
  .limited{padding:18px}
  .clock span{min-width:44px;font-size:18px;padding:6px 8px}
}
@media (max-width:520px){
  .hero h1{font-size:27px}
  .brand-text b{font-size:15px}
  .brand-text span{display:none}
  .stair{grid-template-columns:auto 1fr;row-gap:12px}
  .stair-meta{grid-column:2;text-align:left}
  .section-head h2{font-size:21px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}

/* roulang page: article */
:root{
  --ink-900:#05070F;
  --ink-800:#0A0F1E;
  --ink-700:#101A33;
  --brand:#23E5D5;
  --brand-deep:#14B8C6;
  --accent:#7C5CFF;
  --warn:#FF7A45;
  --text:#EAF2FF;
  --text-2:#A9B7CE;
  --text-3:#6E7C96;
  --line:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.045);
  --glass-strong:rgba(255,255,255,.075);
  --radius:16px;
  --radius-lg:20px;
  --radius-sm:12px;
  --shadow:0 18px 48px rgba(0,0,0,.45);
  --shadow-soft:0 10px 28px rgba(0,0,0,.3);
  --container:1240px;
  --gap:24px;
  --section:96px;
  --header-h:64px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  min-height:100vh;
  font-family:"HarmonyOS Sans","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:
    radial-gradient(1100px 560px at 12% -12%,rgba(124,92,255,.20),transparent 62%),
    radial-gradient(900px 480px at 92% -6%,rgba(35,229,213,.13),transparent 58%),
    var(--ink-900);
  overflow-x:hidden;
}
body.nav-open{overflow:hidden}
img{display:block;max-width:100%;height:auto}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--brand);outline-offset:3px}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:700;letter-spacing:.2px}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.num{font-variant-numeric:tabular-nums;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:var(--section) 0}
.glass{
  background:
    linear-gradient(var(--glass),var(--glass)) padding-box,
    linear-gradient(135deg,rgba(35,229,213,.55),rgba(124,92,255,.14) 60%,rgba(255,255,255,.02)) border-box;
  border:1px solid transparent;
}
.reading-progress{
  position:fixed;top:0;left:0;height:2px;width:0;z-index:70;
  background:linear-gradient(90deg,var(--brand),var(--accent));
  box-shadow:0 0 12px rgba(35,229,213,.6);
  transition:width .12s linear;
}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;height:var(--header-h);
  display:flex;align-items:center;
  border-bottom:1px solid transparent;
  transition:background .3s ease,border-color .3s ease,backdrop-filter .3s ease;
}
.site-header.is-scrolled{
  background:rgba(5,7,15,.84);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border-bottom-color:var(--line);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:var(--header-h)}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  position:relative;width:34px;height:34px;border-radius:11px;flex:0 0 34px;
  background:linear-gradient(135deg,var(--brand),var(--accent));
  box-shadow:0 0 22px rgba(35,229,213,.38);
}
.brand-mark::after{content:"";position:absolute;inset:9px;border-radius:6px;background:rgba(5,7,15,.86)}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text b{font-size:16px;font-weight:700;color:var(--text);letter-spacing:.4px}
.brand-text span{font-size:10px;color:var(--text-3);letter-spacing:.16em}
.nav-links{display:flex;align-items:center;gap:32px}
.nav-links a{position:relative;color:var(--text-2);font-size:15px;padding:6px 0}
.nav-links a:hover{color:var(--text)}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--accent));
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-links a:hover::after,.nav-links a.is-active::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--text)}
.nav-right{display:flex;align-items:center;gap:14px}
.nav-search{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:999px;border:1px solid var(--line);background:var(--glass);
  color:var(--text-3);font-size:13px;white-space:nowrap;
}
.nav-search span:first-child{color:var(--brand);font-size:15px}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:var(--glass);cursor:pointer;
  align-items:center;justify-content:center;padding:0;
}
.nav-toggle i{position:relative;display:block;width:18px;height:2px;border-radius:2px;background:var(--text)}
.nav-toggle i::before,.nav-toggle i::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--text);
}
.nav-toggle i::before{top:-6px}
.nav-toggle i::after{top:6px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border:0;border-radius:var(--radius-sm);cursor:pointer;
  font-family:inherit;font-size:15px;font-weight:600;line-height:1.2;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,filter .22s ease;
}
.btn-primary{
  border-radius:999px;color:#04212A;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  box-shadow:0 0 24px rgba(35,229,213,.35);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 32px rgba(35,229,213,.52);filter:brightness(1.06);color:#04212A}
.btn-primary:active{transform:none;box-shadow:0 0 18px rgba(35,229,213,.3)}
.btn-ghost{
  border-radius:var(--radius-sm);color:var(--text);
  background:var(--glass);border:1px solid var(--line);
}
.btn-ghost:hover{border-color:rgba(35,229,213,.55);background:rgba(255,255,255,.08);transform:translateY(-2px)}
.btn-ghost:active{transform:none;background:rgba(255,255,255,.05)}
.btn-sm{padding:9px 18px;font-size:14px}

/* ---------- 文章头部 ---------- */
.article-top{padding:calc(var(--header-h) + 44px) 0 0}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:26px}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:var(--text-3);opacity:.6}
.breadcrumb .current{color:var(--brand)}
.article-head{max-width:860px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.4px;
  color:#8FF6EC;background:rgba(35,229,213,.10);border:1px solid rgba(35,229,213,.32);
}
.article-head h1{margin:18px 0 20px;font-size:44px;line-height:1.25}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:14px;color:var(--text-3)}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:var(--text-3);opacity:.55}
.meta-row .meta-strong{color:var(--text-2)}

/* ---------- 正文 ---------- */
.article-main{padding:36px 0 8px}
.article-body{max-width:820px;margin:0 auto}
.prose{font-size:17px;line-height:1.9;color:var(--text-2)}
.prose>*:first-child{margin-top:0}
.prose p{margin:0 0 1.2em}
.prose h2{
  position:relative;margin:2em 0 .9em;padding-left:16px;
  font-size:24px;line-height:1.4;color:var(--text);
}
.prose h2::before{
  content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:5px;border-radius:3px;
  background:linear-gradient(180deg,var(--brand),var(--accent));
}
.prose h3{margin:1.6em 0 .7em;font-size:19px;line-height:1.5;color:var(--text)}
.prose h4{margin:1.4em 0 .6em;font-size:17px;color:var(--text)}
.prose ul,.prose ol{margin:0 0 1.2em;padding-left:1.35em}
.prose ul{list-style:disc}
.prose ol{list-style:decimal}
.prose li{margin:.4em 0}
.prose strong{color:var(--text)}
.prose a{color:var(--brand);border-bottom:1px dashed rgba(35,229,213,.45)}
.prose a:hover{color:#7FF3E8;border-bottom-color:#7FF3E8}
.prose blockquote{
  margin:1.5em 0;padding:16px 22px;border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  background:rgba(255,255,255,.035);
  border-left:3px solid var(--brand);
  border-image:linear-gradient(180deg,var(--brand),var(--accent)) 1;
  color:var(--text-2);
}
.prose img{margin:1.4em auto;border-radius:12px;box-shadow:var(--shadow-soft)}
.prose figure{margin:1.4em 0}
.prose figcaption{margin-top:10px;font-size:13px;color:var(--text-3);text-align:center}
.prose table{
  width:100%;margin:1.5em 0;border-collapse:separate;border-spacing:0;
  border:1px solid var(--line);border-radius:var(--radius-sm);overflow:hidden;font-size:15px;
}
.prose th,.prose td{padding:12px 15px;border-bottom:1px solid var(--line);text-align:left;color:var(--text-2)}
.prose th{background:rgba(255,255,255,.05);color:var(--text);font-weight:600}
.prose tbody tr:nth-child(even){background:rgba(255,255,255,.022)}
.prose tr:last-child td{border-bottom:0}
.prose hr{margin:2.2em 0;border:0;height:1px;background:linear-gradient(90deg,rgba(35,229,213,.45),rgba(124,92,255,.2),transparent)}
.article-end{max-width:820px;margin:56px auto 0;height:1px;background:linear-gradient(90deg,rgba(35,229,213,.5),rgba(124,92,255,.22),transparent)}

/* ---------- 空态 ---------- */
.empty-panel{
  display:flex;flex-direction:column;align-items:flex-start;gap:16px;
  padding:40px 36px;border-radius:var(--radius-lg);box-shadow:var(--shadow);
}
.empty-panel .empty-title{font-size:20px;font-weight:700;color:var(--text)}
.empty-panel p{margin:0;color:var(--text-2)}

/* ---------- 板块标题 ---------- */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px}
.section-head h2{position:relative;padding-left:16px;font-size:32px;line-height:1.3}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.14em;bottom:.14em;width:5px;border-radius:3px;
  background:linear-gradient(180deg,var(--brand),var(--accent));
}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);white-space:nowrap}
.text-link:hover{color:#7FF3E8}

/* ---------- 相关推荐 ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.related-card{
  position:relative;display:flex;align-items:flex-start;gap:16px;
  padding:20px;border-radius:var(--radius);box-shadow:var(--shadow);
  transition:transform .22s ease,box-shadow .22s ease;
}
.related-card::after{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  border:1px solid rgba(35,229,213,.62);opacity:0;transition:opacity .22s ease;
}
.related-card:hover{transform:translateY(-3px);box-shadow:0 22px 52px rgba(0,0,0,.5)}
.related-card:hover::after{opacity:1}
.related-card:hover h3{color:#8FF6EC}
.thumb{
  position:relative;flex:0 0 72px;width:72px;height:72px;border-radius:var(--radius-sm);
  overflow:hidden;background:var(--ink-700);
}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.related-card:hover .thumb img{transform:scale(1.04)}
.related-content{display:flex;flex-direction:column;gap:6px;min-width:0}
.related-content .idx{
  display:inline-flex;width:26px;height:20px;align-items:center;justify-content:center;
  border-radius:999px;font-size:11px;font-weight:700;color:#04212A;background:linear-gradient(135deg,var(--brand),var(--brand-deep));
}
.related-content h3{font-size:17px;line-height:1.5;color:var(--text);transition:color .2s ease}
.related-content p{font-size:13px;line-height:1.7;color:var(--text-3);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.related-arrow{margin-left:auto;align-self:center;color:var(--brand);font-size:18px;flex:0 0 auto}

/* ---------- 上下篇 ---------- */
.pn-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.pn-card{
  display:flex;flex-direction:column;gap:8px;padding:22px 24px;
  border-radius:var(--radius);box-shadow:var(--shadow-soft);
  transition:transform .22s ease,border-color .22s ease,background .22s ease;
}
.pn-card:hover{transform:translateY(-3px);background:rgba(255,255,255,.075)}
.pn-card .pn-label{font-size:12px;letter-spacing:.6px;color:var(--brand)}
.pn-card .pn-title{font-size:16px;color:var(--text);font-weight:600;line-height:1.6}
.pn-card.next{text-align:right;align-items:flex-end}
.back-row{display:flex;justify-content:center;margin-top:32px}

/* ---------- CTA ---------- */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:40px 44px;border-radius:var(--radius-lg);box-shadow:var(--shadow);
  position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;right:-60px;top:-80px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(124,92,255,.32),transparent 68%);
}
.cta-band h2{font-size:28px;line-height:1.4;margin-bottom:10px}
.cta-band p{color:var(--text-2);font-size:15px;max-width:560px}
.cta-band .btn{position:relative;z-index:1;flex:0 0 auto}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:var(--section);
  padding:72px 0 28px;
  border-top:1px solid transparent;
  background:
    linear-gradient(180deg,rgba(255,255,255,.02),transparent 40%) padding-box,
    linear-gradient(90deg,rgba(35,229,213,.42),rgba(124,92,255,.28) 55%,transparent) top left/100% 1px no-repeat;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px}
.footer-col h4{
  font-size:14px;letter-spacing:.6px;color:var(--text);margin-bottom:18px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand strong{font-size:16px;color:var(--text)}
.footer-col p{font-size:14px;line-height:1.9;color:var(--text-3);max-width:340px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{font-size:14px;color:var(--text-2)}
.footer-col ul a:hover{color:var(--brand)}
.footer-contact li{font-size:14px;color:var(--text-3)}
.footer-contact b{color:var(--text-2);font-weight:600}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  margin-top:56px;padding-top:22px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  :root{--section:80px}
  .article-head h1{font-size:38px}
}
@media (max-width:992px){
  :root{--section:72px}
  .container{padding:0 20px}
  .nav-links{gap:22px}
  .article-head h1{font-size:34px}
  .section-head h2{font-size:28px}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:28px}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .related-grid .related-card:last-child{grid-column:1 / -1}
}
@media (max-width:768px){
  :root{--section:56px;--header-h:56px}
  .container{padding:0 16px}
  .nav-toggle{display:inline-flex}
  .nav-search{display:none}
  .nav-links{
    position:fixed;top:0;right:0;bottom:0;z-index:65;
    width:min(300px,82vw);flex-direction:column;align-items:stretch;gap:0;
    padding:84px 24px 32px;overflow-y:auto;
    background:rgba(10,15,30,.97);
    -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
    border-left:1px solid var(--line);
    transform:translateX(105%);transition:transform .3s ease;
  }
  body.nav-open .nav-links{transform:translateX(0)}
  body.nav-open::after{
    content:"";position:fixed;inset:0;z-index:64;background:rgba(5,7,15,.72);
  }
  .nav-links a{padding:14px 0;font-size:16px;border-bottom:1px solid var(--line)}
  .nav-links a::after{display:none}
  .article-head h1{font-size:27px;margin:16px 0 18px}
  .prose{font-size:16px}
  .prose h2{font-size:21px}
  .related-grid,.pn-grid{grid-template-columns:1fr}
  .related-grid .related-card:last-child{grid-column:auto}
  .pn-card.next{text-align:left;align-items:flex-start}
  .cta-band{flex-direction:column;align-items:flex-start;padding:30px 24px;gap:22px}
  .cta-band h2{font-size:23px}
  .footer-grid{grid-template-columns:1fr}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px}
  .section-head h2{font-size:23px}
}
@media (max-width:520px){
  .article-top{padding:calc(var(--header-h) + 28px) 0 0}
  .related-card{flex-direction:row;gap:12px;padding:16px}
  .thumb{flex:0 0 58px;width:58px;height:58px}
  .empty-panel{padding:28px 20px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}

/* roulang page: category1 */
:root{
  --ink-900:#05070F;
  --ink-800:#0A0F1E;
  --ink-700:#101A33;
  --brand:#23E5D5;
  --brand-deep:#14B8C6;
  --accent:#7C5CFF;
  --warn:#FF7A45;
  --text:#EAF2FF;
  --muted:#A9B7CE;
  --dim:#6E7C96;
  --line:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.045);
  --glass-strong:rgba(255,255,255,.08);
  --grad-edge:linear-gradient(135deg, rgba(35,229,213,.55), rgba(124,92,255,.12) 60%, transparent);
  --grad-brand:linear-gradient(120deg, #23E5D5 0%, #14B8C6 55%, #7C5CFF 140%);
  --radius-s:12px;
  --radius:16px;
  --radius-l:20px;
  --radius-pill:999px;
  --shadow:0 18px 48px rgba(0,0,0,.45);
  --shadow-soft:0 10px 28px rgba(0,0,0,.32);
  --glow:0 0 24px rgba(35,229,213,.35);
  --glow-strong:0 0 32px rgba(35,229,213,.5);
  --space-section:96px;
  --mono:ui-monospace, "SFMono-Regular", Menlo, Consolas, "Liberation Mono", monospace;
  --font-cn:"HarmonyOS Sans", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:
    radial-gradient(1100px 620px at 12% -8%, rgba(35,229,213,.10), transparent 62%),
    radial-gradient(900px 560px at 92% 4%, rgba(124,92,255,.13), transparent 60%),
    linear-gradient(180deg, var(--ink-900) 0%, var(--ink-800) 45%, var(--ink-900) 100%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .22s ease, opacity .22s ease;}
a:hover{color:var(--brand);}
ul{list-style:none;margin:0;padding:0;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.2px;}
p{margin:0;}
::selection{background:rgba(35,229,213,.28);}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}

.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 24px;
}

/* ============ 顶栏 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .28s ease, border-color .28s ease, backdrop-filter .28s ease;
}
.site-header.is-scrolled{
  background:rgba(5,7,15,.78);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-inner{
  display:flex;
  align-items:center;
  gap:28px;
  height:64px;
}
.brand{
  display:flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
}
.brand-mark{
  width:32px;height:32px;border-radius:11px;
  background:var(--grad-brand);
  box-shadow:0 0 18px rgba(35,229,213,.42);
  position:relative;
  transform:rotate(8deg);
  flex:0 0 auto;
}
.brand-mark::after{
  content:"";
  position:absolute;inset:8px;
  border-radius:6px;
  background:rgba(5,7,15,.72);
  transform:rotate(-8deg);
}
.brand-text b{
  display:block;
  font-size:17px;
  line-height:1.2;
  letter-spacing:.4px;
}
.brand-text span{
  display:block;
  font-size:11px;
  color:var(--dim);
  letter-spacing:1.2px;
  line-height:1.4;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:32px;
  flex:1 1 auto;
}
.nav-links a{
  position:relative;
  font-size:15px;
  color:var(--muted);
  padding:6px 0;
  white-space:nowrap;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-4px;
  height:2px;
  border-radius:2px;
  background:var(--grad-brand);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .24s ease;
}
.nav-links a:hover{color:var(--text);}
.nav-links a:hover::after,
.nav-links a.is-active::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--brand);}
.nav-right{
  display:flex;
  align-items:center;
  gap:14px;
  flex:0 0 auto;
}
.nav-search{
  display:flex;
  align-items:center;
  gap:8px;
  height:36px;
  padding:0 14px;
  border-radius:var(--radius-pill);
  background:var(--glass);
  border:1px solid var(--line);
  color:var(--dim);
  font-size:13px;
  cursor:pointer;
  transition:border-color .22s ease, color .22s ease, background .22s ease;
}
.nav-search:hover{border-color:rgba(35,229,213,.5);color:var(--muted);background:var(--glass-strong);}
.nav-toggle{
  display:none;
  width:40px;height:40px;
  border-radius:12px;
  background:var(--glass);
  border:1px solid var(--line);
  cursor:pointer;
  position:relative;
}
.nav-toggle i,
.nav-toggle i::before,
.nav-toggle i::after{
  position:absolute;
  left:50%;top:50%;
  width:18px;height:2px;
  border-radius:2px;
  background:var(--text);
  transform:translate(-50%,-50%);
  transition:transform .24s ease, opacity .24s ease;
  content:"";
}
.nav-toggle i::before{transform:translate(-50%,-7px);}
.nav-toggle i::after{transform:translate(-50%,5px);}
.nav-toggle.is-open i{background:transparent;}
.nav-toggle.is-open i::before{transform:translate(-50%,-50%) rotate(45deg);}
.nav-toggle.is-open i::after{transform:translate(-50%,-50%) rotate(-45deg);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border:none;
  cursor:pointer;
  font-size:15px;
  font-weight:600;
  letter-spacing:.3px;
  padding:13px 26px;
  border-radius:var(--radius-pill);
  transition:transform .22s ease, box-shadow .22s ease, background .22s ease, border-color .22s ease, filter .22s ease;
}
.btn-primary{
  background:var(--grad-brand);
  color:#04120F;
  box-shadow:var(--glow);
}
.btn-primary:hover{
  transform:translateY(-2px);
  box-shadow:var(--glow-strong);
  filter:brightness(1.06);
  color:#04120F;
}
.btn-primary:active{transform:none;box-shadow:0 0 14px rgba(35,229,213,.3);}
.btn-ghost{
  background:var(--glass);
  color:var(--text);
  border:1px solid var(--line);
  border-radius:var(--radius-s);
}
.btn-ghost:hover{
  border-color:rgba(35,229,213,.6);
  background:var(--glass-strong);
  color:var(--text);
}
.btn-sm{padding:9px 18px;font-size:14px;}

/* ============ 面包屑 ============ */
.crumb{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  color:var(--dim);
  padding:18px 0 0;
  flex-wrap:wrap;
}
.crumb a{color:var(--dim);}
.crumb a:hover{color:var(--brand);}
.crumb span.sep{opacity:.5;}

/* ============ 内页横幅 ============ */
.page-banner{
  position:relative;
  margin-top:22px;
  min-height:260px;
  border-radius:var(--radius-l);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  display:flex;
  align-items:center;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
}
.page-banner::before{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(100deg, rgba(5,7,15,.90) 0%, rgba(5,7,15,.72) 48%, rgba(10,15,30,.60) 100%);
}
.page-banner::after{
  content:"";
  position:absolute;inset:0;
  background:repeating-linear-gradient(180deg, rgba(255,255,255,.045) 0 1px, transparent 1px 4px);
  opacity:.5;
  pointer-events:none;
}
.banner-inner{
  position:relative;
  z-index:2;
  padding:38px 40px;
  max-width:760px;
}
.banner-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:1px;
  color:var(--brand);
  background:rgba(35,229,213,.10);
  border:1px solid rgba(35,229,213,.28);
  border-radius:var(--radius-pill);
  padding:5px 14px;
  margin-bottom:16px;
}
.page-banner h1{
  font-size:44px;
  line-height:1.25;
  margin-bottom:14px;
}
.page-banner h1 em{
  font-style:normal;
  background:var(--grad-brand);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.banner-lead{
  color:var(--muted);
  font-size:16px;
  max-width:620px;
}

/* ============ 板块 ============ */
.section{
  padding-top:var(--space-section);
}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:28px;
  flex-wrap:wrap;
}
.section-head h2{
  font-size:32px;
  line-height:1.3;
  padding-left:16px;
  position:relative;
}
.section-head h2::before{
  content:"";
  position:absolute;
  left:0;top:6px;bottom:6px;
  width:4px;
  border-radius:4px;
  background:linear-gradient(180deg, var(--brand), var(--accent));
}
.section-head .head-note{
  color:var(--dim);
  font-size:14px;
  max-width:520px;
}

/* ============ 数据条 ============ */
.stat-strip{
  margin-top:32px;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  padding:24px 28px;
  border-radius:var(--radius-l);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow-soft);
}
.stat-item b{
  display:block;
  font-family:var(--mono);
  font-size:26px;
  color:var(--brand);
  letter-spacing:.5px;
  line-height:1.3;
}
.stat-item span{
  font-size:13px;
  color:var(--dim);
}

/* ============ 左图右文条目列表 ============ */
.entry-list{
  display:flex;
  flex-direction:column;
  gap:22px;
}
.entry{
  display:grid;
  grid-template-columns:320px 1fr;
  gap:26px;
  padding:20px;
  border-radius:var(--radius-l);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow-soft);
  position:relative;
  overflow:hidden;
  transition:transform .24s ease, border-color .24s ease, box-shadow .24s ease;
}
.entry::before{
  content:"";
  position:absolute;inset:0;
  border-radius:var(--radius-l);
  padding:1px;
  background:var(--grad-edge);
  -webkit-mask:linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;
  mask-composite:exclude;
  opacity:0;
  transition:opacity .24s ease;
  pointer-events:none;
}
.entry:hover{transform:translateY(-3px);box-shadow:var(--shadow);}
.entry:hover::before{opacity:1;}
.entry-figure{
  position:relative;
  border-radius:var(--radius);
  overflow:hidden;
  aspect-ratio:16/10;
  background:var(--ink-700);
}
.entry-figure img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .32s ease;
}
.entry:hover .entry-figure img{transform:scale(1.04);}
.entry-rank{
  position:absolute;
  top:12px;left:12px;
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.5px;
  padding:4px 11px;
  border-radius:var(--radius-pill);
  background:rgba(5,7,15,.72);
  border:1px solid rgba(35,229,213,.4);
  color:var(--brand);
  backdrop-filter:blur(6px);
}
.entry-body{
  display:flex;
  flex-direction:column;
  gap:12px;
  padding:6px 4px 6px 0;
}
.entry-meta{
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12px;
  padding:4px 12px;
  border-radius:var(--radius-pill);
  background:rgba(35,229,213,.10);
  border:1px solid rgba(35,229,213,.26);
  color:var(--brand);
  white-space:nowrap;
}
.badge.violet{
  background:rgba(124,92,255,.14);
  border-color:rgba(124,92,255,.34);
  color:#C3B6FF;
}
.badge.gray{
  background:var(--glass);
  border-color:var(--line);
  color:var(--dim);
}
.entry h3{
  font-size:20px;
  line-height:1.45;
}
.entry:hover h3{color:var(--brand);}
.entry p{
  color:var(--muted);
  font-size:15px;
}
.entry-foot{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding-top:12px;
  border-top:1px dashed rgba(255,255,255,.12);
  font-size:13px;
  color:var(--dim);
  flex-wrap:wrap;
}
.entry-foot .num{font-family:var(--mono);}
.entry-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--brand);
  font-size:14px;
  font-weight:600;
}
.entry-link i{transition:transform .22s ease;}
.entry-link:hover i{transform:translateX(4px);}

/* ============ 索引网格 ============ */
.index-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:18px;
}
.tile{
  display:flex;
  align-items:center;
  gap:14px;
  padding:18px 20px;
  border-radius:var(--radius);
  background:linear-gradient(135deg, rgba(255,255,255,.06), rgba(255,255,255,.02));
  border:1px solid var(--line);
  transition:transform .22s ease, border-color .22s ease, background .22s ease;
}
.tile:hover{
  transform:translateY(-3px);
  border-color:rgba(35,229,213,.45);
  background:linear-gradient(135deg, rgba(35,229,213,.10), rgba(124,92,255,.06));
  color:var(--text);
}
.tile-icon{
  width:40px;height:40px;
  flex:0 0 auto;
  border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(35,229,213,.10);
  border:1px solid rgba(35,229,213,.24);
  color:var(--brand);
  font-size:16px;
}
.tile-text b{display:block;font-size:15px;}
.tile-text span{font-size:13px;color:var(--dim);}

/* ============ 亮点分栏 ============ */
.feature-split{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:24px;
}
.feature-main{
  padding:32px;
  border-radius:var(--radius-l);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow-soft);
  position:relative;
  overflow:hidden;
}
.feature-main::after{
  content:"";
  position:absolute;
  right:-60px;top:-60px;
  width:220px;height:220px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(124,92,255,.28), transparent 68%);
}
.feature-main h3{font-size:22px;margin-bottom:12px;}
.feature-main p{color:var(--muted);font-size:15px;margin-bottom:20px;}
.feature-list{display:flex;flex-direction:column;gap:14px;}
.feature-list li{
  display:flex;
  gap:12px;
  font-size:15px;
  color:var(--muted);
}
.feature-list i{
  color:var(--brand);
  font-size:14px;
  margin-top:6px;
}
.feature-stack{
  display:flex;
  flex-direction:column;
  gap:18px;
}
.feature-card{
  padding:22px 24px;
  border-radius:var(--radius);
  background:var(--glass);
  border:1px solid var(--line);
  transition:border-color .22s ease, transform .22s ease;
}
.feature-card:hover{border-color:rgba(35,229,213,.42);transform:translateY(-3px);}
.feature-card b{
  display:block;
  font-size:16px;
  margin-bottom:6px;
}
.feature-card span{font-size:14px;color:var(--dim);}
.feature-card .dot{
  width:8px;height:8px;
  border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 12px rgba(35,229,213,.7);
  display:inline-block;
  margin-right:10px;
}

/* ============ 流程 ============ */
.flow{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
  position:relative;
}
.flow::before{
  content:"";
  position:absolute;
  left:6%;right:6%;top:26px;
  height:1px;
  background:linear-gradient(90deg, rgba(35,229,213,.5), rgba(124,92,255,.35), transparent);
}
.flow-step{
  position:relative;
  padding-top:64px;
}
.flow-num{
  position:absolute;
  top:0;left:0;
  width:52px;height:52px;
  border-radius:16px;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);
  font-size:17px;
  color:var(--brand);
  background:var(--ink-800);
  border:1px solid rgba(35,229,213,.34);
  box-shadow:0 0 20px rgba(35,229,213,.18);
}
.flow-step h3{font-size:18px;margin-bottom:8px;}
.flow-step p{font-size:14px;color:var(--dim);}

/* ============ 场景 ============ */
.scene-row{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}
.scene-card{
  padding:26px;
  border-radius:var(--radius-l);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow-soft);
  transition:transform .24s ease, border-color .24s ease;
}
.scene-card:hover{transform:translateY(-4px);border-color:rgba(124,92,255,.4);}
.scene-card .badge{margin-bottom:14px;}
.scene-card h3{font-size:18px;margin-bottom:10px;}
.scene-card p{font-size:14px;color:var(--muted);}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:14px;}
.faq-item{
  border-radius:var(--radius);
  background:var(--glass);
  border:1px solid var(--line);
  overflow:hidden;
  transition:border-color .22s ease, background .22s ease;
}
.faq-item.is-open{
  border-color:rgba(35,229,213,.45);
  background:rgba(35,229,213,.05);
}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  gap:14px;
  text-align:left;
  background:none;
  border:none;
  color:var(--text);
  font-size:17px;
  font-weight:600;
  padding:20px 22px;
  cursor:pointer;
}
.faq-q .plus{
  margin-left:auto;
  width:26px;height:26px;
  flex:0 0 auto;
  border-radius:9px;
  background:rgba(35,229,213,.12);
  border:1px solid rgba(35,229,213,.3);
  color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;
  transition:transform .24s ease;
}
.faq-item.is-open .plus{transform:rotate(45deg);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s ease;
}
.faq-a p{
  padding:0 22px 22px 22px;
  color:var(--muted);
  font-size:15px;
}
.faq-item.is-open .faq-a p{animation:fadeIn .18s ease;}
@keyframes fadeIn{from{opacity:0;transform:translateY(-4px);}to{opacity:1;transform:none;}}

/* ============ 咨询面板 ============ */
.consult-wrap{
  display:grid;
  grid-template-columns:1.2fr .8fr;
  gap:24px;
}
.consult-form,
.consult-side{
  padding:30px;
  border-radius:var(--radius-l);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow-soft);
}
.field{margin-bottom:20px;}
.field label{
  display:block;
  font-size:14px;
  color:var(--muted);
  margin-bottom:8px;
}
.field input,
.field select,
.field textarea{
  width:100%;
  padding:12px 2px;
  background:transparent;
  border:none;
  border-bottom:1px solid var(--line);
  color:var(--text);
  font-size:15px;
  font-family:inherit;
  transition:border-color .22s ease, box-shadow .22s ease;
}
.field textarea{resize:vertical;min-height:96px;}
.field input:focus,
.field select:focus,
.field textarea:focus{
  outline:none;
  border-bottom-color:var(--brand);
  box-shadow:0 12px 20px -18px rgba(35,229,213,.9);
}
.field select option{background:var(--ink-800);color:var(--text);}
.consult-side h3{font-size:19px;margin-bottom:14px;}
.consult-side p{font-size:14px;color:var(--muted);margin-bottom:18px;}
.side-list{display:flex;flex-direction:column;gap:12px;}
.side-list li{
  display:flex;
  gap:10px;
  font-size:14px;
  color:var(--muted);
}
.side-list i{color:var(--brand);margin-top:6px;font-size:12px;}

/* ============ CTA 条 ============ */
.cta-bar{
  margin-top:var(--space-section);
  padding:34px 36px;
  border-radius:var(--radius-l);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
  background:linear-gradient(120deg, rgba(35,229,213,.14), rgba(124,92,255,.16));
  border:1px solid rgba(35,229,213,.28);
  box-shadow:var(--shadow);
}
.cta-bar h2{
  font-size:24px;
  margin-bottom:8px;
  padding-left:0;
}
.cta-bar h2::before{display:none;}
.cta-bar p{font-size:14px;color:var(--muted);}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:var(--space-section);
  border-top:1px solid transparent;
  background:linear-gradient(180deg, rgba(255,255,255,.02), rgba(5,7,15,.6));
  position:relative;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg, transparent, rgba(35,229,213,.55), rgba(124,92,255,.35), transparent);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:32px;
  padding:60px 0 40px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:16px;
}
.footer-brand strong{font-size:17px;}
.footer-col h4{
  font-size:15px;
  margin-bottom:16px;
  color:var(--text);
}
.footer-col p{
  font-size:14px;
  color:var(--dim);
  max-width:320px;
}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col ul a,
.footer-contact li{
  font-size:14px;
  color:var(--dim);
}
.footer-col ul a:hover{color:var(--brand);}
.footer-contact li b{color:var(--muted);font-weight:600;}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding:20px 0 28px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--dim);
}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .index-grid{grid-template-columns:repeat(2,1fr);}
  .entry{grid-template-columns:280px 1fr;}
}
@media (max-width:992px){
  :root{--space-section:72px;}
  .page-banner h1{font-size:34px;}
  .section-head h2{font-size:28px;}
  .stat-strip{grid-template-columns:repeat(2,1fr);}
  .feature-split{grid-template-columns:1fr;}
  .scene-row{grid-template-columns:1fr;}
  .flow{grid-template-columns:repeat(2,1fr);}
  .flow::before{display:none;}
  .consult-wrap{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .nav-inner{height:56px;}
  .nav-links{
    position:fixed;
    top:56px;left:0;right:0;
    flex-direction:column;
    align-items:flex-start;
    gap:4px;
    padding:18px 20px 26px;
    background:rgba(5,7,15,.96);
    backdrop-filter:blur(16px);
    border-bottom:1px solid var(--line);
    transform:translateY(-12px);
    opacity:0;
    pointer-events:none;
    transition:opacity .24s ease, transform .24s ease;
  }
  body.nav-open .nav-links{opacity:1;transform:none;pointer-events:auto;}
  body.nav-open::after{
    content:"";
    position:fixed;
    inset:56px 0 0 0;
    background:rgba(5,7,15,.72);
    z-index:40;
  }
  .nav-links a{width:100%;padding:12px 0;font-size:16px;border-bottom:1px solid var(--line);}
  .nav-links a::after{display:none;}
  .nav-search{display:none;}
  .nav-toggle{display:block;position:relative;z-index:70;}
  .entry{grid-template-columns:1fr;padding:16px;}
  .entry-figure{aspect-ratio:16/9;}
  .banner-inner{padding:28px 22px;}
  .cta-bar{padding:26px 22px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding:44px 0 30px;}
}
@media (max-width:576px){
  :root{--space-section:56px;}
  .page-banner{min-height:220px;}
  .page-banner h1{font-size:27px;}
  .banner-lead{font-size:14px;}
  .section-head h2{font-size:23px;}
  .section-head{gap:14px;margin-bottom:20px;}
  .stat-strip{grid-template-columns:1fr 1fr;padding:20px;gap:18px;}
  .stat-item b{font-size:22px;}
  .index-grid{grid-template-columns:1fr;}
  .flow{grid-template-columns:1fr;}
  .entry h3{font-size:18px;}
  .consult-form,.consult-side{padding:22px;}
  .cta-bar h2{font-size:20px;}
  .btn{width:100%;}
  .cta-bar .btn{width:auto;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --ink-900:#05070F;
  --ink-800:#0A0F1E;
  --ink-700:#101A33;
  --card-bg:#0C1428;
  --brand:#23E5D5;
  --brand-deep:#14B8C6;
  --accent:#7C5CFF;
  --warn:#FF7A45;
  --text:#EAF2FF;
  --text-2:#A9B7CE;
  --text-3:#6E7C96;
  --line:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.045);
  --edge:linear-gradient(135deg,rgba(35,229,213,.55),rgba(124,92,255,.14) 60%,rgba(255,255,255,.02));
  --edge-hover:linear-gradient(135deg,rgba(35,229,213,.95),rgba(124,92,255,.45) 62%,rgba(35,229,213,.25));
  --radius-sm:12px;
  --radius:16px;
  --radius-lg:20px;
  --shadow:0 18px 48px rgba(0,0,0,.45);
  --shadow-soft:0 10px 30px rgba(0,0,0,.35);
  --container:1240px;
  --nav-h:64px;
  --font:"HarmonyOS Sans","PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --mono:"SFMono-Regular",ui-monospace,Menlo,Consolas,"Liberation Mono",monospace;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(900px 520px at 82% -8%,rgba(124,92,255,.16),transparent 62%),
    radial-gradient(760px 480px at 6% 12%,rgba(35,229,213,.10),transparent 60%),
    linear-gradient(180deg,#05070F 0%,#070B17 48%,#05070F 100%);
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;background:transparent;}
button,input,textarea,select{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,li,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}
::selection{background:rgba(35,229,213,.3);color:#fff;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:1;
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:999px;
  padding:13px 26px;
  font-size:15px;
  font-weight:600;
  letter-spacing:.02em;
  transition:transform .22s ease-out,box-shadow .22s ease-out,background-color .22s ease-out,border-color .22s ease-out,filter .22s ease-out;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  color:#04121A;
  box-shadow:0 0 24px rgba(35,229,213,.35);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 32px rgba(35,229,213,.5);filter:brightness(1.06);}
.btn-primary:active{transform:none;box-shadow:0 0 14px rgba(35,229,213,.3);}
.btn-ghost{
  background:var(--glass);
  border:1px solid var(--line);
  color:var(--text);
  border-radius:var(--radius-sm);
}
.btn-ghost:hover{border-color:rgba(35,229,213,.6);background:rgba(255,255,255,.085);transform:translateY(-2px);}
.btn-ghost:active{transform:none;}
.btn-sm{padding:9px 18px;font-size:14px;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  height:var(--nav-h);
  display:flex;
  align-items:center;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background-color .25s ease,backdrop-filter .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{
  background:rgba(6,9,19,.78);
  backdrop-filter:blur(14px) saturate(150%);
  -webkit-backdrop-filter:blur(14px) saturate(150%);
  border-bottom-color:var(--line);
}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  width:100%;
}
.brand{display:inline-flex;align-items:center;gap:11px;}
.brand-mark{
  width:30px;height:30px;flex:0 0 30px;border-radius:9px;
  background:conic-gradient(from 210deg,var(--brand),var(--accent),var(--brand-deep),var(--brand));
  box-shadow:0 0 18px rgba(35,229,213,.4);
  position:relative;
}
.brand-mark::after{
  content:"";
  position:absolute;inset:8px;border-radius:3px;
  background:var(--ink-900);
  transform:rotate(45deg);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text b{font-size:17px;font-weight:700;letter-spacing:.02em;}
.brand-text span{font-size:10px;letter-spacing:.22em;color:var(--text-3);}
.nav-links{display:flex;align-items:center;gap:32px;}
.nav-links a{
  position:relative;
  font-size:15px;
  color:var(--text-2);
  padding:6px 0;
  transition:color .2s ease;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-2px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--accent));
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .22s ease-out;
}
.nav-links a:hover{color:var(--text);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--brand);}
.nav-links a.is-active::after{transform:scaleX(1);}
.nav-right{display:flex;align-items:center;gap:14px;}
.nav-search{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;
  border-radius:999px;
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--text-3);
  font-size:13px;
  transition:border-color .2s ease,color .2s ease;
}
.nav-search:hover{border-color:rgba(35,229,213,.5);color:var(--text-2);}
.nav-search span:first-child{font-size:15px;color:var(--brand);}
.nav-toggle{
  display:none;
  width:40px;height:40px;
  border-radius:10px;
  border:1px solid var(--line);
  background:var(--glass);
  align-items:center;
  justify-content:center;
}
.nav-toggle i{
  display:block;width:16px;height:2px;background:var(--text);border-radius:2px;position:relative;
}
.nav-toggle i::before,.nav-toggle i::after{
  content:"";position:absolute;left:0;width:16px;height:2px;background:var(--text);border-radius:2px;
  transition:transform .22s ease,opacity .22s ease;
}
.nav-toggle i::before{top:-5px;}
.nav-toggle i::after{top:5px;}

/* ============ 面包屑 ============ */
.crumb-bar{padding:22px 0 4px;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:9px;font-size:13px;color:var(--text-3);}
.breadcrumb a{color:var(--text-2);transition:color .2s ease;}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:var(--text-3);opacity:.6;}
.breadcrumb .now{color:var(--brand);}

/* ============ 内页横幅 ============ */
.page-banner{
  position:relative;
  margin-top:16px;
  border-radius:var(--radius-lg);
  overflow:hidden;
  min-height:236px;
  display:flex;
  align-items:center;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.page-banner .banner-bg{
  position:absolute;inset:0;
  background-size:cover;
  background-position:center;
  transform:scale(1.04);
}
.page-banner .banner-bg::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(5,7,15,.94) 8%,rgba(5,7,15,.72) 52%,rgba(5,7,15,.58) 100%);
}
.page-banner .banner-lines{
  position:absolute;inset:0;
  background-image:repeating-linear-gradient(180deg,rgba(255,255,255,.045) 0 1px,transparent 1px 5px);
  opacity:.55;
  pointer-events:none;
}
.banner-inner{position:relative;z-index:2;padding:42px 8px;max-width:820px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.06em;
  color:var(--brand);
  background:rgba(35,229,213,.1);
  border:1px solid rgba(35,229,213,.32);
}
.badge-purple{color:#C7BCFF;background:rgba(124,92,255,.14);border-color:rgba(124,92,255,.4);}
.badge-warn{color:#FFB795;background:rgba(255,122,69,.13);border-color:rgba(255,122,69,.38);}
.page-banner h1{
  font-size:44px;
  line-height:1.25;
  font-weight:700;
  letter-spacing:.01em;
  margin:16px 0 12px;
}
.page-banner .banner-sub{font-size:16px;color:var(--text-2);max-width:660px;}

/* ============ 通用板块 ============ */
.section{padding-top:96px;}
.section-head{margin-bottom:28px;max-width:760px;}
.section-head h2{
  position:relative;
  font-size:32px;
  line-height:1.35;
  font-weight:700;
  padding-left:16px;
}
.section-head h2::before{
  content:"";
  position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:3px;
  background:linear-gradient(180deg,var(--brand),var(--accent));
}
.section-head p{margin-top:14px;color:var(--text-2);font-size:15.5px;}
.head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}
.text-link{
  font-size:14px;color:var(--brand);
  display:inline-flex;align-items:center;gap:6px;
  border-bottom:1px solid rgba(35,229,213,.35);
  padding-bottom:2px;
  transition:border-color .2s ease,color .2s ease;
}
.text-link:hover{border-color:var(--brand);color:#7CF3E8;}

/* ============ 错落卡片 ============ */
.stagger-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
  align-items:start;
}
.stagger-card{
  position:relative;
  border:1px solid transparent;
  border-radius:var(--radius-lg);
  background:
    linear-gradient(var(--card-bg),var(--card-bg)) padding-box,
    var(--edge) border-box;
  box-shadow:var(--shadow);
  overflow:hidden;
  transition:transform .22s ease-out,box-shadow .22s ease-out,background .22s ease-out;
}
.stagger-card::after{
  content:"";
  position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.35),transparent);
  opacity:.6;
}
.stagger-card:nth-child(even){margin-top:24px;}
.stagger-card:hover{
  transform:translateY(-3px);
  background:
    linear-gradient(var(--card-bg),var(--card-bg)) padding-box,
    var(--edge-hover) border-box;
  box-shadow:0 22px 56px rgba(0,0,0,.55),0 0 0 1px rgba(35,229,213,.12);
}
.stagger-card .thumb{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.stagger-card .thumb img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .35s ease-out;
  filter:saturate(1.05);
}
.stagger-card:hover .thumb img{transform:scale(1.04);}
.stagger-card .thumb::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,7,15,.12),rgba(5,7,15,.68));
}
.thumb-badge{
  position:absolute;left:14px;top:14px;z-index:2;
}
.card-body{padding:20px 22px 22px;}
.card-body h3{
  font-size:20px;
  line-height:1.4;
  font-weight:700;
  margin-bottom:10px;
}
.card-body p{color:var(--text-2);font-size:15px;line-height:1.8;}
.card-meta{
  display:flex;align-items:center;justify-content:space-between;
  gap:12px;
  margin-top:16px;padding-top:14px;
  border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.card-meta .num{font-family:var(--mono);letter-spacing:.02em;color:var(--text-2);}
.card-meta .go{color:var(--brand);transition:transform .2s ease;}
.stagger-card:hover .card-meta .go{transform:translateX(4px);}

/* ============ 步骤流 ============ */
.flow{position:relative;padding-left:34px;}
.flow::before{
  content:"";position:absolute;left:9px;top:8px;bottom:8px;width:2px;
  background:linear-gradient(180deg,var(--brand),rgba(124,92,255,.5),transparent);
  border-radius:2px;
}
.flow-item{position:relative;padding-bottom:22px;}
.flow-item:last-child{padding-bottom:0;}
.flow-item::before{
  content:"";position:absolute;left:-33px;top:10px;
  width:14px;height:14px;border-radius:50%;
  background:var(--ink-900);
  border:2px solid var(--brand);
  box-shadow:0 0 12px rgba(35,229,213,.5);
}
.flow-panel{
  border:1px solid transparent;
  border-radius:var(--radius);
  background:
    linear-gradient(rgba(12,20,40,.86),rgba(12,20,40,.86)) padding-box,
    var(--edge) border-box;
  box-shadow:var(--shadow-soft);
  padding:18px 20px;
  transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.flow-panel:hover{transform:translateX(4px);box-shadow:var(--shadow);}
.flow-panel h3{font-size:18px;font-weight:700;margin-bottom:6px;}
.flow-panel p{font-size:15px;color:var(--text-2);}
.flow-step{
  font-family:var(--mono);font-size:12px;color:var(--brand);letter-spacing:.12em;
  display:block;margin-bottom:4px;
}

/* ============ 数据条 ============ */
.stats{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  background:var(--glass);
  padding:28px 24px;
}
.stat{position:relative;padding-left:18px;}
.stat::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:2px;border-radius:2px;
  background:linear-gradient(180deg,var(--brand),rgba(124,92,255,.35));
}
.stat b{display:block;font-family:var(--mono);font-size:28px;line-height:1.2;color:var(--text);}
.stat span{font-size:13.5px;color:var(--text-3);}

/* ============ 双列对比 ============ */
.compare{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;}
.compare-card{
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  padding:26px;
  box-shadow:var(--shadow-soft);
  transition:border-color .22s ease,transform .22s ease;
}
.compare-card:hover{border-color:rgba(35,229,213,.4);transform:translateY(-2px);}
.compare-card.highlight{
  border-color:transparent;
  background:
    linear-gradient(rgba(12,20,40,.92),rgba(12,20,40,.92)) padding-box,
    linear-gradient(135deg,rgba(124,92,255,.75),rgba(35,229,213,.35)) border-box;
}
.compare-card h3{font-size:20px;font-weight:700;margin:12px 0 8px;}
.compare-card p{color:var(--text-2);font-size:15px;}
.tick-list{margin-top:16px;display:flex;flex-direction:column;gap:10px;}
.tick-list li{
  position:relative;
  padding-left:24px;
  font-size:14.5px;
  color:var(--text-2);
}
.tick-list li::before{
  content:"";
  position:absolute;left:0;top:9px;
  width:12px;height:7px;
  border-left:2px solid var(--brand);
  border-bottom:2px solid var(--brand);
  transform:rotate(-45deg);
}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px;}
.faq-item{
  border:1px solid transparent;
  border-radius:var(--radius);
  background:
    linear-gradient(rgba(12,20,40,.82),rgba(12,20,40,.82)) padding-box,
    var(--edge) border-box;
  box-shadow:var(--shadow-soft);
  overflow:hidden;
}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  text-align:left;
  padding:18px 22px;
  font-size:17px;
  font-weight:600;
  color:var(--text);
  transition:color .2s ease;
}
.faq-q:hover{color:var(--brand);}
.faq-q .plus{
  flex:0 0 22px;
  width:22px;height:22px;
  position:relative;
  transition:transform .25s ease;
}
.faq-q .plus::before,.faq-q .plus::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
}
.faq-q .plus::before{left:10px;top:2px;width:2px;height:18px;}
.faq-q .plus::after{top:10px;left:2px;height:2px;width:18px;}
.faq-item.is-open .faq-q .plus{transform:rotate(45deg);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s ease;
}
.faq-item.is-open .faq-a{max-height:420px;}
.faq-a p{
  padding:0 22px 20px;
  color:var(--text-2);
  font-size:15px;
  opacity:0;
  animation:none;
}
.faq-item.is-open .faq-a p{opacity:1;transition:opacity .18s ease .06s;}

/* ============ CTA 条 ============ */
.cta-bar{
  margin-top:96px;
  border:1px solid transparent;
  border-radius:var(--radius-lg);
  background:
    linear-gradient(120deg,rgba(16,26,51,.95),rgba(10,15,30,.95)) padding-box,
    linear-gradient(135deg,rgba(35,229,213,.6),rgba(124,92,255,.45)) border-box;
  box-shadow:var(--shadow);
  padding:34px 32px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:26px;
  flex-wrap:wrap;
  position:relative;
  overflow:hidden;
}
.cta-bar::before{
  content:"";
  position:absolute;right:-70px;top:-70px;
  width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(35,229,213,.22),transparent 68%);
}
.cta-bar h2{font-size:24px;font-weight:700;position:relative;}
.cta-bar p{color:var(--text-2);font-size:15px;margin-top:8px;position:relative;}
.cta-bar .cta-form{display:flex;gap:12px;flex-wrap:wrap;position:relative;}

/* ============ 表单 ============ */
.field{margin-bottom:18px;display:flex;flex-direction:column;gap:8px;}
.field label{font-size:14px;color:var(--text-2);}
.field input,.field select{
  width:100%;
  padding:12px 14px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line);
  background:rgba(255,255,255,.035);
  color:var(--text);
  font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.field input:hover,.field select:hover{border-color:rgba(255,255,255,.18);}
.field input:focus,.field select:focus{
  outline:none;
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(35,229,213,.18),0 0 18px rgba(35,229,213,.22);
  background:rgba(255,255,255,.055);
}
.consult-wrap{display:grid;grid-template-columns:1.2fr .8fr;gap:26px;}
.panel{
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  background:var(--glass);
  box-shadow:var(--shadow-soft);
  padding:26px;
}
.panel h3{font-size:20px;font-weight:700;margin-bottom:10px;}
.panel p{color:var(--text-2);font-size:15px;}
.panel ul{margin-top:16px;display:flex;flex-direction:column;gap:12px;}
.panel ul li{
  display:flex;justify-content:space-between;gap:14px;
  padding-bottom:12px;
  border-bottom:1px dashed var(--line);
  font-size:14px;color:var(--text-2);
}
.panel ul li:last-child{border-bottom:0;padding-bottom:0;}
.panel ul li b{color:var(--text);font-weight:600;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:96px;
  padding-top:56px;
  position:relative;
  border-top:1px solid transparent;
  background:linear-gradient(180deg,rgba(10,15,30,.4),rgba(5,7,15,.95));
}
.site-footer::before{
  content:"";
  position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(35,229,213,.55),rgba(124,92,255,.5),transparent);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:32px;
  padding-bottom:40px;
}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:16px;color:var(--text);}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:14px;}
.footer-brand strong{font-size:17px;}
.footer-col p{font-size:14px;color:var(--text-3);line-height:1.85;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col ul a{font-size:14px;color:var(--text-2);transition:color .2s ease,padding-left .2s ease;}
.footer-col ul a:hover{color:var(--brand);padding-left:4px;}
.footer-contact li{font-size:14px;color:var(--text-3);line-height:1.7;}
.footer-contact b{color:var(--text-2);font-weight:600;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:18px 0 26px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-3);
}

/* ============ 响应式 ============ */
@media screen and (max-width:1200px){
  .page-banner h1{font-size:38px;}
  .section-head h2{font-size:28px;}
}
@media screen and (max-width:992px){
  :root{--nav-h:56px;}
  .container{padding:0 20px;}
  .nav-links{
    position:fixed;
    top:var(--nav-h);right:0;
    width:min(320px,86vw);
    height:calc(100vh - var(--nav-h));
    flex-direction:column;
    align-items:flex-start;
    gap:6px;
    padding:24px 22px;
    background:rgba(8,12,24,.97);
    backdrop-filter:blur(16px);
    -webkit-backdrop-filter:blur(16px);
    border-left:1px solid var(--line);
    transform:translateX(104%);
    transition:transform .28s ease;
    z-index:70;
  }
  .nav-links.is-open{transform:translateX(0);box-shadow:-24px 0 60px rgba(5,7,15,.72);}
  .nav-links a{width:100%;padding:13px 4px;font-size:16px;border-bottom:1px solid var(--line);}
  .nav-links a::after{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-search{display:none;}
  .body-nav-open::after{
    content:"";
    position:fixed;inset:0;
    background:rgba(5,7,15,.72);
    z-index:55;
  }
  .section{padding-top:72px;}
  .cta-bar{margin-top:72px;}
  .site-footer{margin-top:72px;}
  .stats{grid-template-columns:repeat(2,minmax(0,1fr));}
  .consult-wrap{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .page-banner h1{font-size:34px;}
  .section-head h2{font-size:28px;}
}
@media screen and (max-width:768px){
  .stagger-grid{grid-template-columns:1fr;gap:20px;}
  .stagger-card:nth-child(even){margin-top:0;}
  .compare{grid-template-columns:1fr;}
  .stats{grid-template-columns:1fr;gap:16px;}
  .page-banner{min-height:210px;border-radius:var(--radius);}
  .banner-inner{padding:30px 4px;}
  .page-banner h1{font-size:29px;margin:12px 0 10px;}
  .page-banner .banner-sub{font-size:15px;}
  .section{padding-top:56px;}
  .section-head{margin-bottom:20px;}
  .section-head h2{font-size:23px;}
  .section-head p{font-size:15px;}
  .cta-bar{margin-top:56px;padding:26px 22px;flex-direction:column;align-items:flex-start;}
  .site-footer{margin-top:56px;padding-top:44px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:28px;}
  .card-body{padding:18px;}
  .card-body h3{font-size:18px;}
}
@media screen and (max-width:520px){
  .container{padding:0 16px;}
  .brand-text b{font-size:15px;}
  .brand-text span{display:none;}
  .page-banner h1{font-size:26px;}
  .stat b{font-size:24px;}
  .cta-bar .cta-form{width:100%;}
  .cta-bar .cta-form .btn{width:100%;}
  .faq-q{font-size:16px;padding:16px 18px;}
  .faq-a p{padding:0 18px 18px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;}
  .stagger-card:hover,.flow-panel:hover,.compare-card:hover{transform:none;}
}

/* roulang page: category3 */
:root{
  --ink-900:#05070F;
  --ink-800:#0A0F1E;
  --ink-700:#101A33;
  --brand:#23E5D5;
  --brand-deep:#14B8C6;
  --accent:#7C5CFF;
  --warn:#FF7A45;
  --text:#EAF2FF;
  --text-2:#A9B7CE;
  --text-3:#6E7C96;
  --line:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.045);
  --glass-strong:rgba(255,255,255,.07);
  --r-xs:8px;
  --r-sm:12px;
  --r:16px;
  --r-lg:20px;
  --shadow:0 18px 48px rgba(0,0,0,.45);
  --shadow-soft:0 10px 30px rgba(0,0,0,.32);
  --glow:0 0 24px rgba(35,229,213,.35);
  --glow-lg:0 0 32px rgba(35,229,213,.5);
  --container:1240px;
  --gap:24px;
  --section:96px;
  --font:"HarmonyOS Sans","PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,sans-serif;
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(900px 520px at 82% -8%, rgba(124,92,255,.20), transparent 62%),
    radial-gradient(760px 460px at 6% 4%, rgba(35,229,213,.14), transparent 60%),
    linear-gradient(180deg,#05070F 0%,#080C19 46%,#05070F 100%);
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  opacity:.5;
  background-image:
    linear-gradient(rgba(255,255,255,.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.022) 1px, transparent 1px);
  background-size:64px 64px;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:var(--brand);}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,select,textarea{font-family:inherit;font-size:15px;}
h1,h2,h3,h4,p,ul,ol,li,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}
::selection{background:rgba(35,229,213,.28);color:#fff;}

/* ---------- layout ---------- */
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:2;
}
main{position:relative;z-index:2;}
.section{padding:var(--section) 0;}
.section-sm{padding:64px 0;}
.sec-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:28px;
  flex-wrap:wrap;
}
.sec-title{
  position:relative;
  padding-left:18px;
  font-size:32px;
  line-height:1.35;
  font-weight:700;
  letter-spacing:.01em;
}
.sec-title::before{
  content:"";
  position:absolute;
  left:0;
  top:50%;
  transform:translateY(-50%);
  width:6px;
  height:28px;
  border-radius:4px;
  background:linear-gradient(180deg,var(--brand),var(--accent));
}
.sec-sub{
  color:var(--text-2);
  font-size:15px;
  max-width:620px;
  margin-top:14px;
}
.sec-head .sec-sub{margin-top:0;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.14em;
  color:var(--brand);
  border:1px solid rgba(35,229,213,.35);
  background:rgba(35,229,213,.08);
  border-radius:999px;
  padding:5px 12px;
  margin-bottom:16px;
}
.mono{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";letter-spacing:.02em;}
.divider{height:1px;background:var(--line);border:0;margin:0;}

/* ---------- header / nav ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  height:64px;
  z-index:120;
  transition:background .3s ease,backdrop-filter .3s ease,border-color .3s ease;
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:rgba(5,7,15,.78);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border-bottom-color:var(--line);
}
.nav-inner{
  height:64px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:11px;
  flex-shrink:0;
}
.brand-mark{
  width:32px;height:32px;
  border-radius:10px;
  display:inline-block;
  background:linear-gradient(135deg,var(--brand),var(--accent));
  box-shadow:var(--glow);
  position:relative;
  flex-shrink:0;
}
.brand-mark::after{
  content:"";
  position:absolute;
  inset:8px;
  border-radius:4px;
  background:var(--ink-900);
  transform:rotate(45deg);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text b{font-size:16px;font-weight:700;letter-spacing:.02em;}
.brand-text span{font-size:10px;letter-spacing:.2em;color:var(--text-3);}
.nav-links{
  display:flex;
  align-items:center;
  gap:32px;
  margin-left:auto;
}
.nav-links a{
  position:relative;
  font-size:15px;
  color:var(--text-2);
  padding:6px 0;
  white-space:nowrap;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--accent));
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .25s ease;
}
.nav-links a:hover{color:var(--text);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--brand);}
.nav-links a.is-active::after{transform:scaleX(1);}
.nav-right{display:flex;align-items:center;gap:14px;}
.nav-search{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:38px;
  padding:0 14px;
  border-radius:999px;
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--text-3);
  font-size:13px;
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.nav-search:hover{border-color:rgba(35,229,213,.5);color:var(--text-2);background:var(--glass-strong);}
.nav-toggle{
  display:none;
  width:40px;height:40px;
  border-radius:10px;
  border:1px solid var(--line);
  background:var(--glass);
  position:relative;
}
.nav-toggle i,
.nav-toggle i::before,
.nav-toggle i::after{
  content:"";
  position:absolute;
  left:50%;
  width:18px;height:2px;
  border-radius:2px;
  background:var(--text);
  transform:translateX(-50%);
  transition:transform .25s ease,opacity .2s ease;
}
.nav-toggle i{top:50%;margin-top:-1px;}
.nav-toggle i::before{top:-6px;}
.nav-toggle i::after{top:6px;}
.nav-toggle[aria-expanded="true"] i{background:transparent;}
.nav-toggle[aria-expanded="true"] i::before{transform:translateX(-50%) translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] i::after{transform:translateX(-50%) translateY(-6px) rotate(-45deg);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-size:15px;
  font-weight:600;
  line-height:1;
  padding:14px 26px;
  border-radius:999px;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease,filter .2s ease;
  white-space:nowrap;
}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn-primary{
  color:#031014;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  box-shadow:var(--glow);
}
.btn-primary:hover{
  transform:translateY(-2px);
  box-shadow:var(--glow-lg);
  filter:brightness(1.06);
  color:#031014;
}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 16px rgba(35,229,213,.3);}
.btn-ghost{
  color:var(--text);
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:12px;
  backdrop-filter:blur(8px);
}
.btn-ghost:hover{
  border-color:rgba(35,229,213,.6);
  background:var(--glass-strong);
  color:var(--text);
  transform:translateY(-2px);
}
.btn-ghost:active{transform:translateY(0);}
.link-more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  color:var(--brand);
  font-weight:600;
}
.link-more:hover{gap:10px;}

/* ---------- banner ---------- */
.cat-banner{
  position:relative;
  margin-top:64px;
  min-height:248px;
  display:flex;
  align-items:flex-end;
  padding:44px 0 40px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.cat-banner__bg{
  position:absolute;
  inset:0;
  background-image:url("/assets/images/backpic/back-3.webp");
  background-size:cover;
  background-position:center 40%;
  filter:saturate(115%);
}
.cat-banner__bg::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(5,7,15,.86),rgba(5,7,15,.72) 55%,rgba(5,7,15,.94));
}
.cat-banner__scan{
  position:absolute;
  inset:0;
  background:repeating-linear-gradient(180deg,rgba(255,255,255,.035) 0 1px,transparent 1px 4px);
  opacity:.55;
  pointer-events:none;
}
.cat-banner .container{width:100%;}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
  margin-bottom:16px;
  flex-wrap:wrap;
}
.breadcrumb a{color:var(--text-2);}
.breadcrumb span.sep{color:var(--text-3);}
.cat-banner h1{
  font-size:42px;
  line-height:1.25;
  font-weight:750;
  letter-spacing:.01em;
  max-width:880px;
}
.cat-banner .lead{
  margin-top:14px;
  font-size:16px;
  color:var(--text-2);
  max-width:720px;
}
.banner-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px;}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12px;
  padding:6px 12px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.05);
  color:var(--text-2);
  backdrop-filter:blur(6px);
}
.tag.is-brand{border-color:rgba(35,229,213,.45);color:var(--brand);background:rgba(35,229,213,.09);}
.tag.is-accent{border-color:rgba(124,92,255,.45);color:#C4B6FF;background:rgba(124,92,255,.12);}

/* ---------- stat strip ---------- */
.stat-row{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:var(--gap);
  margin-top:8px;
}
.stat{
  border-radius:var(--r);
  border:1px solid var(--line);
  background:var(--glass);
  padding:22px 20px;
  position:relative;
  overflow:hidden;
  transition:border-color .25s ease,transform .25s ease;
}
.stat::before{
  content:"";
  position:absolute;
  left:0;right:0;top:0;
  height:1px;
  background:linear-gradient(90deg,rgba(35,229,213,.6),rgba(124,92,255,.25),transparent);
}
.stat:hover{border-color:rgba(35,229,213,.45);transform:translateY(-3px);}
.stat b{
  display:block;
  font-size:30px;
  line-height:1.2;
  font-weight:750;
  background:linear-gradient(120deg,var(--brand),#B9AEFF);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.stat span{display:block;font-size:13px;color:var(--text-3);margin-top:6px;}

/* ---------- timeline ---------- */
.timeline{
  position:relative;
  margin-top:12px;
  padding-left:56px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:19px;
  top:10px;
  bottom:10px;
  width:2px;
  border-radius:2px;
  background:linear-gradient(180deg,rgba(35,229,213,.85),rgba(124,92,255,.65) 70%,rgba(124,92,255,0));
}
.tl-item{position:relative;padding-bottom:32px;}
.tl-item:last-child{padding-bottom:0;}
.tl-dot{
  position:absolute;
  left:-56px;
  top:22px;
  width:40px;height:40px;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:14px;
  font-weight:700;
  color:var(--brand);
  background:linear-gradient(180deg,rgba(16,26,51,.95),rgba(10,15,30,.95));
  border:1px solid rgba(35,229,213,.5);
  box-shadow:0 0 0 4px rgba(35,229,213,.08),0 0 18px rgba(35,229,213,.22);
  font-variant-numeric:tabular-nums;
}
.tl-item:nth-child(even) .tl-dot{
  color:#C4B6FF;
  border-color:rgba(124,92,255,.55);
  box-shadow:0 0 0 4px rgba(124,92,255,.1),0 0 18px rgba(124,92,255,.25);
}
.tl-card{
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(10px);
  box-shadow:var(--shadow);
  padding:26px 28px;
  position:relative;
  transition:border-color .25s ease,transform .25s ease,background .25s ease;
}
.tl-card::before{
  content:"";
  position:absolute;
  left:0;right:0;top:0;
  height:1px;
  border-radius:var(--r-lg) var(--r-lg) 0 0;
  background:linear-gradient(90deg,rgba(35,229,213,.55),rgba(124,92,255,.2),transparent 72%);
}
.tl-card:hover{border-color:rgba(35,229,213,.42);transform:translateY(-3px);background:var(--glass-strong);}
.tl-card h3{
  font-size:20px;
  font-weight:700;
  line-height:1.45;
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
}
.tl-card p{margin-top:12px;color:var(--text-2);font-size:15.5px;line-height:1.85;}
.tl-meta{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  margin-top:16px;
  padding-top:16px;
  border-top:1px dashed rgba(255,255,255,.1);
}
.tl-meta span{
  font-size:12.5px;
  color:var(--text-3);
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.tl-meta span::before{
  content:"";
  width:5px;height:5px;
  border-radius:50%;
  background:var(--brand);
  opacity:.8;
}

/* ---------- scene list (left image right text) ---------- */
.scene-list{display:flex;flex-direction:column;gap:18px;}
.scene-item{
  display:grid;
  grid-template-columns:220px 1fr;
  gap:24px;
  align-items:center;
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:var(--glass);
  padding:18px;
  transition:border-color .25s ease,transform .25s ease,background .25s ease;
}
.scene-item:hover{border-color:rgba(35,229,213,.4);transform:translateY(-3px);background:var(--glass-strong);}
.scene-thumb{
  border-radius:var(--r-sm);
  overflow:hidden;
  aspect-ratio:16/10;
  background:linear-gradient(135deg,rgba(35,229,213,.14),rgba(124,92,255,.18));
  border:1px solid var(--line);
}
.scene-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.scene-item:hover .scene-thumb img{transform:scale(1.05);}
.scene-body h3{font-size:19px;font-weight:700;line-height:1.5;}
.scene-body p{margin-top:8px;color:var(--text-2);font-size:15px;}
.scene-body .chips{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px;}
.chip{
  font-size:12px;
  padding:4px 10px;
  border-radius:8px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  color:var(--text-3);
}

/* ---------- feature split ---------- */
.split{
  display:grid;
  grid-template-columns:1.05fr 1fr;
  gap:40px;
  align-items:center;
}
.split-media{
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  aspect-ratio:16/11;
  background:linear-gradient(135deg,rgba(35,229,213,.12),rgba(124,92,255,.2));
  position:relative;
}
.split-media img{width:100%;height:100%;object-fit:cover;}
.split-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,transparent 45%,rgba(5,7,15,.72));
}
.split-media .float-card{
  position:absolute;
  left:20px;
  right:20px;
  bottom:20px;
  z-index:2;
  border-radius:var(--r-sm);
  border:1px solid rgba(255,255,255,.14);
  background:rgba(10,15,30,.72);
  backdrop-filter:blur(12px);
  padding:16px 18px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.float-card b{
  display:block;
  font-size:22px;
  font-weight:750;
  color:var(--brand);
  line-height:1.2;
}
.float-card span{font-size:12.5px;color:var(--text-3);}
.check-list{margin-top:22px;display:flex;flex-direction:column;gap:14px;}
.check-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  font-size:15.5px;
  color:var(--text-2);
}
.check-list li i{
  flex-shrink:0;
  width:22px;height:22px;
  border-radius:8px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-style:normal;
  font-size:12px;
  color:var(--brand);
  background:rgba(35,229,213,.12);
  border:1px solid rgba(35,229,213,.35);
  margin-top:5px;
}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px;}
.faq-item{
  border-radius:var(--r);
  border:1px solid var(--line);
  background:var(--glass);
  overflow:hidden;
  transition:border-color .25s ease,background .25s ease;
}
.faq-item.is-open{border-color:rgba(35,229,213,.45);background:var(--glass-strong);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  text-align:left;
  padding:20px 22px;
  font-size:17px;
  font-weight:650;
  color:var(--text);
}
.faq-q:hover{color:var(--brand);}
.faq-icon{
  flex-shrink:0;
  width:26px;height:26px;
  border-radius:8px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border:1px solid var(--line);
  background:rgba(255,255,255,.05);
  color:var(--brand);
  font-size:16px;
  line-height:1;
  transition:transform .25s ease,background .25s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:rgba(35,229,213,.14);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s ease,opacity .18s ease;
  opacity:0;
}
.faq-item.is-open .faq-a{opacity:1;}
.faq-a p{
  padding:0 22px 22px;
  color:var(--text-2);
  font-size:15.5px;
  line-height:1.85;
}

/* ---------- cta bar ---------- */
.cta-bar{
  border-radius:var(--r-lg);
  border:1px solid rgba(35,229,213,.32);
  background:linear-gradient(120deg,rgba(35,229,213,.12),rgba(124,92,255,.16) 60%,rgba(255,255,255,.03));
  padding:34px 36px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  flex-wrap:wrap;
  box-shadow:var(--shadow);
  position:relative;
  overflow:hidden;
}
.cta-bar::before{
  content:"";
  position:absolute;
  right:-60px;top:-60px;
  width:220px;height:220px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(35,229,213,.28),transparent 68%);
}
.cta-bar h2{font-size:24px;font-weight:700;line-height:1.45;}
.cta-bar p{margin-top:8px;color:var(--text-2);font-size:15px;}

/* ---------- footer ---------- */
.site-footer{
  margin-top:96px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(10,15,30,.6),rgba(5,7,15,.96));
  position:relative;
  z-index:2;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(35,229,213,.6),rgba(124,92,255,.4),transparent);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  padding:64px 0 44px;
}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px;}
.footer-brand strong{font-size:16px;font-weight:700;}
.footer-col p{color:var(--text-3);font-size:14px;line-height:1.85;max-width:340px;}
.footer-col h4{
  font-size:14px;
  font-weight:700;
  color:var(--text);
  margin-bottom:18px;
  letter-spacing:.04em;
}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col ul a{font-size:14px;color:var(--text-2);}
.footer-col ul a:hover{color:var(--brand);}
.footer-contact li{font-size:14px;color:var(--text-2);}
.footer-contact b{color:var(--text-3);font-weight:500;}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:20px 0 30px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--text-3);
}

/* ---------- responsive ---------- */
@media screen and (max-width:1200px){
  :root{--section:84px;}
  .cat-banner h1{font-size:38px;}
  .footer-grid{gap:32px;}
}
@media screen and (max-width:992px){
  :root{--section:72px;--gap:20px;}
  .nav-links{gap:20px;}
  .nav-search{display:none;}
  .cat-banner{margin-top:64px;min-height:230px;}
  .cat-banner h1{font-size:34px;}
  .stat-row{grid-template-columns:repeat(2,1fr);}
  .split{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:52px 0 36px;}
  .scene-item{grid-template-columns:180px 1fr;gap:20px;}
}
@media screen and (max-width:768px){
  :root{--section:56px;--gap:16px;}
  .container{padding:0 20px;}
  .site-header{height:56px;}
  .nav-inner{height:56px;}
  .nav-toggle{display:inline-flex;}
  .nav-links{
    position:fixed;
    top:56px;
    right:0;
    width:min(320px,86vw);
    height:calc(100vh - 56px);
    flex-direction:column;
    align-items:flex-start;
    gap:6px;
    padding:24px 22px;
    background:rgba(8,12,25,.97);
    -webkit-backdrop-filter:blur(18px);
    backdrop-filter:blur(18px);
    border-left:1px solid var(--line);
    transform:translateX(105%);
    transition:transform .28s ease;
    margin-left:0;
    z-index:130;
  }
  .nav-links a{
    width:100%;
    padding:13px 0;
    font-size:16px;
    border-bottom:1px solid var(--line);
  }
  .nav-links a::after{display:none;}
  body.nav-open .nav-links{transform:translateX(0);}
  body.nav-open::after{z-index:110;}
  .cat-banner{margin-top:56px;min-height:212px;padding:32px 0 30px;}
  .cat-banner h1{font-size:28px;}
  .cat-banner .lead{font-size:15px;}
  .sec-title{font-size:23px;padding-left:14px;}
  .sec-title::before{height:22px;width:5px;}
  .stat-row{grid-template-columns:1fr;}
  .timeline{padding-left:46px;}
  .timeline::before{left:15px;}
  .tl-dot{left:-46px;width:32px;height:32px;font-size:12px;top:18px;}
  .tl-card{padding:20px;}
  .tl-card h3{font-size:18px;}
  .scene-item{grid-template-columns:1fr;gap:16px;padding:16px;}
  .scene-thumb{aspect-ratio:16/9;}
  .cta-bar{padding:26px 22px;}
  .cta-bar h2{font-size:20px;}
  .footer-grid{grid-template-columns:1fr;padding:44px 0 30px;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .split-media .float-card{left:14px;right:14px;bottom:14px;padding:12px 14px;}
}
@media screen and (max-width:520px){
  .cat-banner h1{font-size:25px;}
  .brand-text span{display:none;}
  .brand-text b{font-size:15px;}
  .btn{padding:12px 20px;font-size:14px;}
  .faq-q{font-size:16px;padding:17px 18px;}
  .faq-a p{padding:0 18px 18px;}
  .tl-card h3{font-size:17px;}
  .banner-tags{gap:8px;}
}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
}