/* roulang page: index */
:root{
  --bg:#050B14;
  --bg-soft:#07111F;
  --glass:#0B1728;
  --cyan:#35E0D0;
  --amber:#FFB45A;
  --violet:#7C5CFF;
  --green:#3DDC97;
  --tx:#EAF4FF;
  --tx-2:#9FB3C8;
  --line:rgba(255,255,255,.08);
  --line-cyan:rgba(53,224,208,.18);
  --r-sm:12px;
  --r-md:18px;
  --r-lg:24px;
  --shadow:0 18px 60px rgba(0,0,0,.35);
  --glow:0 0 28px rgba(53,224,208,.35);
  --maxw:1320px;
  --sp:88px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--tx);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-2;
  background:
    radial-gradient(900px 520px at 10% -6%, rgba(53,224,208,.16), transparent 62%),
    radial-gradient(760px 460px at 92% 6%, rgba(124,92,255,.15), transparent 64%),
    radial-gradient(820px 620px at 50% 112%, rgba(255,180,90,.08), transparent 66%);
  pointer-events:none;
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  background-image:
    linear-gradient(rgba(255,255,255,.024) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.024) 1px, transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(circle at 50% 22%, #000 0%, transparent 76%);
  mask-image:radial-gradient(circle at 50% 22%, #000 0%, transparent 76%);
  pointer-events:none;
}
a{color:inherit;text-decoration:none;transition:color .22s ease, border-color .22s ease, background .22s ease;}
img{max-width:100%;display:block;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.28;letter-spacing:.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px;border-radius:6px;}
.container{max-width:var(--maxw);padding-inline:22px;margin-inline:auto;width:100%;}
.tnum{font-variant-numeric:tabular-nums;}

/* ===== 顶部信息条 ===== */
.topbar{
  background:rgba(7,17,31,.82);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  font-size:12.5px;
}
.topbar-inner{
  height:38px;
  display:flex;
  align-items:center;
  gap:18px;
  justify-content:space-between;
  color:var(--tx-2);
}
.topbar-domain{display:inline-flex;align-items:center;gap:8px;color:var(--tx);letter-spacing:.04em;}
.topbar-domain i{color:var(--cyan);font-size:12px;}
.topbar-note{flex:1;text-align:center;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;}
.topbar-cta{
  color:var(--cyan);
  border:1px solid var(--line-cyan);
  border-radius:999px;
  padding:2px 14px;
  font-size:12px;
  line-height:1.9;
}
.topbar-cta:hover{background:rgba(53,224,208,.1);color:#fff;}

/* ===== 主导航 ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(5,11,20,.72);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  transition:box-shadow .28s ease, background .28s ease;
}
.site-header.is-scrolled{
  background:rgba(5,11,20,.9);
  box-shadow:0 14px 40px rgba(0,0,0,.45);
}
.nav-wrap{
  height:70px;
  display:flex;
  align-items:center;
  gap:20px;
}
.brand{display:inline-flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{
  width:40px;height:40px;
  display:grid;place-items:center;
  border-radius:14px;
  background:linear-gradient(135deg, rgba(53,224,208,.9), rgba(124,92,255,.85));
  color:#04121A;
  font-size:17px;
  box-shadow:var(--glow);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text b{font-size:16.5px;font-weight:700;letter-spacing:.02em;}
.brand-text small{font-size:11px;color:var(--tx-2);letter-spacing:.08em;}
.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
  flex-wrap:nowrap;
}
.nav-links a{
  position:relative;
  padding:8px 13px;
  font-size:14.5px;
  color:var(--tx-2);
  border-radius:10px;
  white-space:nowrap;
}
.nav-links a:hover{color:var(--tx);background:rgba(255,255,255,.05);}
.nav-links a.active{color:var(--tx);}
.nav-links a.active::after{
  content:"";
  position:absolute;
  left:13px;right:13px;bottom:1px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--cyan),var(--violet));
  box-shadow:0 0 12px rgba(53,224,208,.7);
}
.nav-toggle{
  margin-left:auto;
  width:44px;height:44px;
  border-radius:14px;
  border:1px solid var(--line-cyan);
  background:rgba(11,23,40,.7);
  color:var(--tx);
  font-size:17px;
  display:grid;place-items:center;
}
.nav-cta{
  margin-left:14px;
  padding:10px 22px;
  font-size:14.5px;
  border-radius:999px;
  background:linear-gradient(120deg,var(--cyan),var(--violet));
  color:#04121A;
  font-weight:700;
  box-shadow:var(--glow);
  white-space:nowrap;
}
.nav-cta:hover{filter:brightness(1.08);transform:translateY(-1px);}

/* ===== 按钮 ===== */
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 30px;
  border-radius:999px;
  border:0;
  font-weight:700;
  font-size:15px;
  color:#04121A;
  background:linear-gradient(120deg,var(--cyan),var(--violet));
  box-shadow:var(--glow);
  transition:transform .2s ease, filter .2s ease, box-shadow .2s ease;
}
.btn-main:hover{transform:translateY(-2px);filter:brightness(1.09);color:#04121A;}
.btn-main:active{transform:translateY(1px);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 28px;
  border-radius:999px;
  border:1px solid rgba(53,224,208,.45);
  background:rgba(11,23,40,.55);
  color:var(--cyan);
  font-weight:600;
  font-size:15px;
  backdrop-filter:blur(10px);
  transition:transform .2s ease, background .2s ease, border-color .2s ease;
}
.btn-ghost:hover{transform:translateY(-2px);background:rgba(53,224,208,.12);border-color:var(--cyan);color:#fff;}
.btn-soft{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:9px 20px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  color:var(--tx-2);
  font-size:13.5px;
  transition:all .2s ease;
}
.btn-soft:hover{border-color:var(--line-cyan);color:var(--cyan);background:rgba(53,224,208,.08);}

/* ===== 通用板块 ===== */
.section{padding:var(--sp) 0;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head.center{margin-inline:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;
  letter-spacing:.16em;
  color:var(--cyan);
  text-transform:uppercase;
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--cyan);}
.section-title{font-size:clamp(1.5rem,2.6vw,2.3rem);}
.section-desc{margin-top:14px;color:var(--tx-2);font-size:15.5px;max-width:680px;}
.glass{
  background:rgba(11,23,40,.62);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow);
  transition:transform .26s ease, border-color .26s ease, box-shadow .26s ease;
}
.glass:hover{transform:translateY(-4px);border-color:var(--line-cyan);box-shadow:0 24px 70px rgba(0,0,0,.45), 0 0 0 1px rgba(53,224,208,.12);}
.badge-tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 12px;
  border-radius:999px;
  font-size:12px;
  border:1px solid var(--line-cyan);
  background:rgba(53,224,208,.08);
  color:var(--cyan);
}
.badge-tag.amber{border-color:rgba(255,180,90,.3);background:rgba(255,180,90,.1);color:var(--amber);}
.badge-tag.violet{border-color:rgba(124,92,255,.35);background:rgba(124,92,255,.12);color:#B9A8FF;}
.badge-tag.green{border-color:rgba(61,220,151,.3);background:rgba(61,220,151,.1);color:var(--green);}

/* ===== Hero ===== */
.hero{
  position:relative;
  padding:92px 0 96px;
  background-image:
    linear-gradient(180deg, rgba(5,11,20,.78) 0%, rgba(5,11,20,.9) 55%, rgba(5,11,20,.98) 100%),
    url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.hero::after{
  content:"";
  position:absolute;
  right:-160px;top:-160px;
  width:520px;height:520px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(53,224,208,.28), transparent 66%);
  filter:blur(28px);
  pointer-events:none;
}
.hero-tag{
  display:inline-flex;align-items:center;gap:9px;
  padding:6px 16px;
  border-radius:999px;
  border:1px solid var(--line-cyan);
  background:rgba(11,23,40,.7);
  color:var(--cyan);
  font-size:13px;
  margin-bottom:22px;
  backdrop-filter:blur(10px);
}
.hero h1{
  font-size:clamp(2rem,4vw,3.5rem);
  letter-spacing:-.01em;
  max-width:14em;
}
.hero-sub{
  margin-top:20px;
  font-size:clamp(1.05rem,1.5vw,1.28rem);
  color:var(--cyan);
  font-weight:600;
  letter-spacing:.02em;
}
.hero-desc{
  margin-top:14px;
  color:var(--tx-2);
  font-size:15.8px;
  max-width:620px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px;}
.hero-badges li{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13.5px;
  color:var(--tx-2);
  padding:7px 15px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.025);
}
.hero-badges i{color:var(--green);font-size:12px;}
.hero-card{padding:28px 26px;border-radius:var(--r-lg);}
.hero-card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:18px;border-bottom:1px dashed var(--line);}
.hero-card-head span{font-size:13px;color:var(--tx-2);}
.hero-card-head b{font-size:15px;}
.stat-row{display:flex;align-items:baseline;justify-content:space-between;gap:14px;padding:15px 0;border-bottom:1px solid rgba(255,255,255,.05);}
.stat-row:last-of-type{border-bottom:0;}
.stat-row .k{font-size:14px;color:var(--tx-2);}
.stat-row .v{font-size:20px;font-weight:700;color:var(--cyan);}
.stat-row .v.amber{color:var(--amber);}
.stat-row .v.violet{color:#B9A8FF;}
.hero-card-foot{margin-top:14px;display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--tx-2);}
.pulse-dot{width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 0 0 rgba(61,220,151,.6);animation:pulse 2.2s infinite;}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(61,220,151,.55);}
  70%{box-shadow:0 0 0 12px rgba(61,220,151,0);}
  100%{box-shadow:0 0 0 0 rgba(61,220,151,0);}
}

/* ===== 快速入口速览 ===== */
.entry-grid{display:grid;grid-template-columns:1.25fr .95fr;gap:20px;}
.entry-card{overflow:hidden;display:flex;flex-direction:column;}
.entry-thumb{position:relative;height:230px;overflow:hidden;}
.entry-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.entry-card:hover .entry-thumb img{transform:scale(1.05);}
.entry-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,11,20,.1),rgba(5,11,20,.88));}
.entry-body{padding:24px 26px 26px;display:flex;flex-direction:column;gap:12px;flex:1;}
.entry-body h3{font-size:1.22rem;}
.entry-body p{color:var(--tx-2);font-size:14.8px;}
.entry-side{display:grid;grid-template-rows:1fr 1fr;gap:20px;}
.entry-side .entry-thumb{height:150px;}
.entry-side .entry-body{padding:20px 22px 22px;}
.entry-side .entry-body h3{font-size:1.05rem;}
.entry-link{display:inline-flex;align-items:center;gap:7px;font-size:13.5px;color:var(--cyan);margin-top:auto;}
.entry-link:hover{gap:11px;color:#fff;}

/* ===== 优惠阶梯 ===== */
.ladder{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;position:relative;}
.ladder-item{position:relative;padding:26px 22px;border-radius:var(--r-md);}
.ladder-item::after{
  content:"";
  position:absolute;
  right:-18px;top:50%;
  width:18px;height:2px;
  background:linear-gradient(90deg,var(--line-cyan),transparent);
}
.ladder-item:last-child::after{display:none;}
.ladder-num{
  width:38px;height:38px;
  border-radius:12px;
  display:grid;place-items:center;
  font-weight:700;
  font-size:15px;
  background:rgba(53,224,208,.1);
  border:1px solid var(--line-cyan);
  color:var(--cyan);
  margin-bottom:16px;
}
.ladder-item.active{
  border-color:rgba(255,180,90,.45);
  box-shadow:0 24px 70px rgba(0,0,0,.45), 0 0 0 1px rgba(255,180,90,.2);
}
.ladder-item.active .ladder-num{background:rgba(255,180,90,.14);border-color:rgba(255,180,90,.4);color:var(--amber);}
.ladder-item h3{font-size:1.1rem;margin-bottom:8px;}
.ladder-item p{font-size:14px;color:var(--tx-2);min-height:48px;}
.ladder-tags{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0 20px;}

/* ===== 套餐对比 ===== */
.plan-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;border-radius:var(--r-lg);border:1px solid var(--line);background:rgba(11,23,40,.5);}
.plan-table{width:100%;min-width:880px;border-collapse:collapse;}
.plan-table th,.plan-table td{padding:16px 20px;text-align:left;border-bottom:1px solid rgba(255,255,255,.06);font-size:14.5px;vertical-align:middle;}
.plan-table thead th{
  position:sticky;top:0;
  background:rgba(7,17,31,.96);
  backdrop-filter:blur(12px);
  font-size:15px;
  color:var(--tx);
  border-bottom:1px solid var(--line-cyan);
  z-index:3;
}
.plan-table tbody th{color:var(--tx-2);font-weight:500;background:rgba(255,255,255,.015);width:170px;}
.plan-table tbody tr:hover{background:rgba(53,224,208,.03);}
.plan-table td{color:var(--tx);}
.plan-table .col-rec{background:rgba(53,224,208,.045);position:relative;}
.plan-table thead .col-rec{box-shadow:inset 0 3px 0 0 var(--cyan);}
.plan-price{font-size:19px;font-weight:700;color:var(--cyan);}
.plan-price small{display:block;font-size:12px;color:var(--tx-2);font-weight:400;margin-top:2px;}
.tick{color:var(--green);}
.dash{color:#4A5C72;}
.rec-tag{
  position:absolute;top:10px;right:14px;
  font-size:11px;padding:2px 10px;
  border-radius:999px;
  background:rgba(53,224,208,.16);
  border:1px solid var(--line-cyan);
  color:var(--cyan);
}

/* ===== 限时入口 ===== */
.limited{
  border-radius:var(--r-lg);
  padding:40px 38px;
  background-image:
    linear-gradient(120deg, rgba(5,11,20,.92), rgba(11,23,40,.82)),
    url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  border:1px solid var(--line-cyan);
  box-shadow:var(--shadow);
  display:grid;
  grid-template-columns:1.1fr 1fr;
  gap:36px;
  align-items:center;
}
.countdown{display:flex;gap:12px;align-items:center;}
.cd-block{
  min-width:82px;
  padding:14px 10px;
  border-radius:16px;
  text-align:center;
  background:rgba(5,11,20,.72);
  border:1px solid var(--line);
}
.cd-block b{display:block;font-size:28px;font-weight:700;color:var(--cyan);letter-spacing:.04em;}
.cd-block span{font-size:12px;color:var(--tx-2);}
.progress-track{height:10px;border-radius:999px;background:rgba(255,255,255,.07);overflow:hidden;margin-top:14px;}
.progress-fill{height:100%;width:78%;border-radius:999px;background:linear-gradient(90deg,var(--cyan),var(--amber));box-shadow:0 0 18px rgba(53,224,208,.5);}
.progress-meta{display:flex;justify-content:space-between;font-size:13px;color:var(--tx-2);margin-top:10px;}

/* ===== 咨询表单 ===== */
.consult-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:26px;align-items:stretch;}
.consult-aside{padding:34px 30px;display:flex;flex-direction:column;gap:22px;border-radius:var(--r-lg);}
.consult-aside h3{font-size:1.3rem;}
.consult-aside p{color:var(--tx-2);font-size:14.8px;}
.trust-list{display:flex;flex-direction:column;gap:14px;margin-top:auto;}
.trust-list li{display:flex;gap:12px;font-size:14px;color:var(--tx-2);}
.trust-list i{color:var(--cyan);margin-top:5px;font-size:13px;}
.consult-form{padding:34px 32px;border-radius:var(--r-lg);}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.form-field{margin-bottom:18px;display:flex;flex-direction:column;gap:8px;}
.form-field label{font-size:13.5px;color:var(--tx-2);}
.form-field .req{color:var(--amber);}
.form-field input,
.form-field select,
.form-field textarea{
  width:100%;
  padding:12px 15px;
  border-radius:var(--r-sm);
  border:1px solid var(--line);
  background:rgba(5,11,20,.66);
  color:var(--tx);
  font-size:14.5px;
  transition:border-color .22s ease, box-shadow .22s ease, background .22s ease;
}
.form-field textarea{min-height:106px;resize:vertical;}
.form-field input::placeholder,
.form-field textarea::placeholder{color:#5B6E84;}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus{
  outline:none;
  border-color:var(--cyan);
  background:rgba(5,11,20,.85);
  box-shadow:0 0 0 3px rgba(53,224,208,.14), 0 0 22px rgba(53,224,208,.16);
}
.form-field select option{background:#07111F;color:var(--tx);}
.check-line{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--tx-2);margin:4px 0 22px;}
.check-line input{width:16px;height:16px;margin-top:4px;accent-color:#35E0D0;}
.form-note{margin-top:14px;font-size:13px;color:var(--green);display:none;}
.form-note.show{display:block;}

/* ===== 最新信息 ===== */
.news-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.news-card{padding:0;overflow:hidden;display:flex;flex-direction:column;}
.news-card.is-feature{grid-column:1/-1;flex-direction:row;}
.news-thumb{position:relative;overflow:hidden;flex:0 0 320px;}
.news-thumb img{width:100%;height:100%;object-fit:cover;min-height:220px;transition:transform .5s ease;}
.news-card:hover .news-thumb img{transform:scale(1.05);}
.news-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(5,11,20,.2),rgba(5,11,20,.75));}
.news-body{padding:24px 26px 26px;display:flex;flex-direction:column;gap:12px;flex:1;}
.news-card.is-feature .news-body{padding:32px 34px;}
.news-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:12.5px;color:var(--tx-2);}
.news-body h3{font-size:1.1rem;line-height:1.5;}
.news-card.is-feature .news-body h3{font-size:1.42rem;}
.news-body h3 a:hover{color:var(--cyan);}
.news-body p{color:var(--tx-2);font-size:14.5px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.news-card.is-feature .news-body p{-webkit-line-clamp:4;font-size:15.2px;}
.news-more{display:inline-flex;align-items:center;gap:7px;font-size:13.5px;color:var(--cyan);margin-top:auto;}
.news-more:hover{gap:12px;color:#fff;}
.news-empty{
  padding:52px 26px;
  text-align:center;
  border:1px dashed var(--line-cyan);
  border-radius:var(--r-lg);
  background:rgba(11,23,40,.42);
  color:var(--tx-2);
  font-size:15px;
}

/* ===== FAQ ===== */
.faq-wrap{max-width:940px;margin-inline:auto;}
.accordion-item{
  background:rgba(11,23,40,.6);
  border:1px solid var(--line);
  border-radius:var(--r-md) !important;
  margin-bottom:14px;
  overflow:hidden;
  backdrop-filter:blur(14px);
  transition:border-color .24s ease, box-shadow .24s ease;
}
.accordion-item:hover{border-color:var(--line-cyan);}
.accordion-button{
  background:transparent;
  color:var(--tx);
  font-size:15.6px;
  font-weight:600;
  padding:20px 24px;
  box-shadow:none !important;
  border:0;
}
.accordion-button:not(.collapsed){color:var(--cyan);background:rgba(53,224,208,.05);}
.accordion-button::after{
  content:"\f067";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  background-image:none;
  width:30px;height:30px;
  display:grid;place-items:center;
  border-radius:50%;
  border:1px solid var(--line-cyan);
  color:var(--cyan);
  font-size:12px;
  transform:none;
  transition:transform .26s ease, background .26s ease;
}
.accordion-button:not(.collapsed)::after{transform:rotate(135deg);background:rgba(53,224,208,.14);}
.accordion-body{padding:4px 24px 24px;color:var(--tx-2);font-size:14.8px;line-height:1.85;}

/* ===== 底部 CTA ===== */
.cta-band{
  border-radius:var(--r-lg);
  padding:52px 44px;
  background-image:
    linear-gradient(110deg, rgba(5,11,20,.94), rgba(11,23,40,.8)),
    url('/assets/images/backpic/back-3.png');
  background-size:cover;
  background-position:center;
  border:1px solid var(--line-cyan);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:30px;
  flex-wrap:wrap;
  box-shadow:var(--shadow);
}
.cta-band h2{font-size:clamp(1.4rem,2.4vw,2rem);max-width:18em;}
.cta-band p{color:var(--tx-2);margin-top:12px;font-size:15px;max-width:34em;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ===== 页脚 ===== */
.site-footer{
  margin-top:var(--sp);
  border-top:1px solid var(--line);
  background:rgba(7,17,31,.7);
  padding:64px 0 0;
}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:34px;}
.foot-brand p{color:var(--tx-2);font-size:14.2px;margin-top:16px;max-width:32em;}
.foot-brand .brand{margin-bottom:4px;}
.foot-title{font-size:14.5px;font-weight:700;margin-bottom:18px;color:var(--tx);}
.foot-links li{margin-bottom:11px;}
.foot-links a{font-size:14px;color:var(--tx-2);}
.foot-links a:hover{color:var(--cyan);}
.foot-contact li{display:flex;gap:10px;font-size:14px;color:var(--tx-2);margin-bottom:12px;}
.foot-contact i{color:var(--cyan);margin-top:5px;font-size:13px;}
.foot-bottom{
  margin-top:52px;
  padding:22px 0;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--tx-2);
}
.foot-bottom a{color:var(--cyan);}
.foot-bottom a:hover{color:#fff;}

/* ===== 移动端抽屉 ===== */
.offcanvas.drawer{
  background:rgba(7,17,31,.98);
  color:var(--tx);
  border-right:1px solid var(--line-cyan);
  width:min(84vw,320px);
}
.drawer .offcanvas-header{border-bottom:1px solid var(--line);}
.drawer .btn-close{filter:invert(1) grayscale(1) brightness(1.6);}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:15px 6px;
  font-size:15px;
  color:var(--tx-2);
  border-bottom:1px solid rgba(255,255,255,.05);
}
.drawer-nav a:hover,.drawer-nav a.active{color:var(--cyan);}
.drawer-cta{margin-top:26px;display:block;text-align:center;}

/* ===== 响应式 ===== */
@media (max-width:1399.98px){
  :root{--maxw:1180px;}
}
@media (max-width:1199.98px){
  :root{--sp:78px;}
  .ladder{grid-template-columns:repeat(2,1fr);}
  .ladder-item:nth-child(2)::after{display:none;}
  .foot-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px;}
  .foot-contact{grid-column:1/-1;}
}
@media (max-width:991.98px){
  :root{--sp:64px;}
  .hero{padding:70px 0 72px;}
  .entry-grid{grid-template-columns:1fr;}
  .entry-side{grid-template-rows:auto;}
  .limited{grid-template-columns:1fr;gap:28px;padding:32px 26px;}
  .consult-grid{grid-template-columns:1fr;}
  .news-card.is-feature{flex-direction:column;}
  .news-thumb{flex:none;}
  .news-thumb img{min-height:190px;}
  .cta-band{padding:40px 28px;}
}
@media (max-width:767.98px){
  :root{--sp:56px;}
  .hero h1{font-size:clamp(1.8rem,7vw,2.4rem);}
  .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%;}
  .ladder{grid-template-columns:1fr;}
  .ladder-item::after{display:none;}
  .news-grid{grid-template-columns:1fr;}
  .news-card.is-feature .news-body{padding:24px 22px 26px;}
  .news-body{padding:22px 22px 24px;}
  .form-row{grid-template-columns:1fr;}
  .consult-form,.consult-aside{padding:26px 22px;}
  .cd-block{min-width:70px;}
  .cd-block b{font-size:23px;}
  .foot-grid{grid-template-columns:1fr 1fr;}
  .foot-brand{grid-column:1/-1;}
  .foot-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:575.98px){
  .container{padding-inline:16px;}
  .hero-badges{gap:9px;}
  .hero-badges li{font-size:12.5px;padding:6px 12px;}
  .topbar-note{display:none;}
  .foot-grid{grid-template-columns:1fr;}
  .countdown{gap:8px;}
  .cd-block{min-width:62px;padding:11px 6px;}
  .cd-block b{font-size:20px;}
  .cta-actions .btn-main,.cta-actions .btn-ghost{width:100%;}
}

/* roulang page: article */
:root{
  --bg:#050B14;
  --bg-2:#07111F;
  --panel:rgba(11,23,40,.62);
  --panel-solid:#0B1728;
  --primary:#35E0D0;
  --primary-dim:rgba(53,224,208,.18);
  --amber:#FFB45A;
  --violet:#7C5CFF;
  --success:#3DDC97;
  --text:#EAF4FF;
  --text-soft:#DCE9F7;
  --muted:#9FB3C8;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(53,224,208,.18);
  --radius-s:12px;
  --radius-m:18px;
  --radius-l:24px;
  --shadow:0 18px 60px rgba(0,0,0,.35);
  --glow:0 0 28px rgba(53,224,208,.35);
  --container:1320px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(680px 420px at 12% 4%, rgba(53,224,208,.13), transparent 65%),
    radial-gradient(620px 460px at 88% 12%, rgba(124,92,255,.13), transparent 68%),
    radial-gradient(700px 520px at 50% 108%, rgba(53,224,208,.07), transparent 70%);
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  opacity:.35;
  background-image:linear-gradient(rgba(255,255,255,.028) 1px, transparent 1px),linear-gradient(90deg, rgba(255,255,255,.028) 1px, transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 50% 20%, #000 20%, transparent 80%);
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0;padding:0}
ul,ol{list-style:none}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:8px}
.container{max-width:var(--container);padding-inline:20px;position:relative;z-index:1}
.section-space{padding:88px 0}
.num{font-variant-numeric:tabular-nums}

/* ---------- 顶部信息条 ---------- */
.site-header{position:sticky;top:0;z-index:1030}
.topbar{
  height:38px;
  display:flex;
  align-items:center;
  font-size:12.5px;
  color:var(--muted);
  background:rgba(5,11,20,.82);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%}
.topbar-domain{display:inline-flex;align-items:center;gap:7px;letter-spacing:.02em;color:#C3D3E4}
.topbar-domain i{color:var(--primary)}
.topbar-note{display:inline-flex;align-items:center;gap:7px}
.topbar-note i{color:var(--amber)}
.topbar-cta{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--primary)}
.topbar-cta:hover{color:#FFFFFF;text-shadow:0 0 14px rgba(53,224,208,.6)}

/* ---------- 主导航 ---------- */
.nav-wrap{
  background:rgba(7,17,31,.74);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  transition:box-shadow .28s ease,background-color .28s ease;
}
.site-header.scrolled .nav-wrap{background:rgba(7,17,31,.94);box-shadow:0 16px 44px rgba(0,0,0,.48)}
.nav-inner{display:flex;align-items:center;gap:18px;padding:12px 0}
.brand{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{
  width:40px;height:40px;border-radius:14px;display:grid;place-items:center;
  color:var(--primary);font-size:17px;
  background:linear-gradient(135deg,rgba(53,224,208,.22),rgba(124,92,255,.22));
  border:1px solid var(--line-strong);
  box-shadow:inset 0 0 18px rgba(53,224,208,.18);
}
.brand-text{display:flex;flex-direction:column;line-height:1.16}
.brand-text b{font-size:17px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.brand-text small{font-size:11.5px;color:var(--muted);letter-spacing:.08em}
.nav-links{gap:4px;align-items:center;margin-inline:auto}
.nav-links a{
  position:relative;
  padding:8px 12px;
  border-radius:10px;
  font-size:14.5px;
  color:#CBD9EA;
  white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--violet));
  transform:scaleX(0);transform-origin:left;transition:transform .26s ease;
}
.nav-links a:hover{color:#fff;background:rgba(53,224,208,.08)}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1)}
.nav-links a.active{color:#fff}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  width:44px;height:44px;border-radius:12px;font-size:18px;
  display:grid;place-items:center;
  color:var(--text);background:rgba(11,23,40,.66);border:1px solid var(--line);
}
.nav-toggle:hover{border-color:var(--line-strong);color:var(--primary)}

/* ---------- 按钮 ---------- */
.btn-glow{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border:0;border-radius:999px;
  font-size:14.5px;font-weight:600;color:#04121A;
  background:linear-gradient(120deg,var(--primary),#7CE7DE 46%,var(--violet));
  box-shadow:var(--glow);
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
}
.btn-glow:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 0 38px rgba(53,224,208,.5);color:#04121A}
.btn-glow:active{transform:translateY(0);filter:brightness(.97)}
.btn-glass{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:999px;font-size:14.5px;font-weight:600;
  color:var(--primary);background:rgba(11,23,40,.6);
  border:1px solid var(--line-strong);
  transition:transform .2s ease,border-color .2s ease,background-color .2s ease,color .2s ease;
}
.btn-glass:hover{transform:translateY(-2px);color:#fff;border-color:rgba(53,224,208,.45);background:rgba(53,224,208,.1)}
.btn-glass:active{transform:translateY(0)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 18px;border-radius:999px;font-size:14px;font-weight:500;
  color:var(--muted);background:transparent;border:1px solid var(--line);
}
.btn-ghost:hover{color:var(--text);border-color:var(--line-strong)}

/* ---------- 徽章 / 标签 ---------- */
.chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;border-radius:999px;
  font-size:12.5px;font-weight:600;letter-spacing:.04em;
  color:var(--primary);background:rgba(53,224,208,.1);
  border:1px solid var(--line-strong);
}
.chip-amber{color:var(--amber);background:rgba(255,180,90,.1);border-color:rgba(255,180,90,.24)}
.chip-violet{color:#C3B6FF;background:rgba(124,92,255,.14);border-color:rgba(124,92,255,.28)}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:8px;font-size:12.5px;color:#C7D7E8;
  background:rgba(255,255,255,.05);border:1px solid var(--line);
}

/* ---------- 文章首屏 ---------- */
.article-hero{
  position:relative;
  padding:48px 0 36px;
  border-bottom:1px solid var(--line);
  background-image:linear-gradient(180deg,rgba(5,11,20,.86),rgba(5,11,20,.96)),url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.article-hero::after{
  content:"";position:absolute;width:520px;height:520px;right:-140px;top:-220px;border-radius:50%;
  background:radial-gradient(circle,rgba(53,224,208,.18),transparent 68%);pointer-events:none;
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);margin-bottom:22px}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--primary)}
.crumb .sep{opacity:.45}
.crumb .current{color:var(--text-soft)}
.hero-head{max-width:900px}
.article-title{
  font-size:clamp(1.8rem,3.6vw,2.9rem);
  line-height:1.28;font-weight:700;letter-spacing:.01em;
  margin:16px 0 18px;
}
.post-meta{display:flex;flex-wrap:wrap;gap:10px 20px;font-size:13.5px;color:var(--muted)}
.meta-item{display:inline-flex;align-items:center;gap:7px}
.meta-item i{color:var(--primary);opacity:.9}
.article-cover{
  margin-top:30px;border-radius:var(--radius-l);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow);
  aspect-ratio:21/9;background:var(--panel-solid);
}
.article-cover img{width:100%;height:100%;object-fit:cover}

/* ---------- 正文布局 ---------- */
.article-section{padding:64px 0 76px}
.article-shell{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:44px;align-items:start}
.article-body{max-width:820px;color:var(--text-soft);font-size:16.5px;line-height:1.85}
.article-body p{margin:0 0 18px}
.article-body h2{
  font-size:clamp(1.35rem,2.1vw,1.65rem);
  font-weight:700;color:#fff;line-height:1.4;
  margin:38px 0 16px;padding-left:14px;position:relative;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--primary),var(--violet));
}
.article-body h3{font-size:1.2rem;font-weight:600;color:#fff;margin:28px 0 12px}
.article-body h4{font-size:1.05rem;font-weight:600;color:#fff;margin:22px 0 10px}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:22px}
.article-body ul li{margin-bottom:9px;position:relative}
.article-body ul li::before{
  content:"";position:absolute;left:-16px;top:.72em;width:6px;height:6px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 10px rgba(53,224,208,.7);
}
.article-body ol{list-style:decimal}
.article-body ol li{margin-bottom:9px}
.article-body a{color:var(--primary);border-bottom:1px solid rgba(53,224,208,.4)}
.article-body a:hover{color:#fff;border-color:#fff}
.article-body strong{color:#fff}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;border-left:3px solid var(--primary);
  background:rgba(11,23,40,.62);border-radius:0 var(--radius-m) var(--radius-m) 0;
  color:#CFE0F1;backdrop-filter:blur(12px);
}
.article-body img{border-radius:var(--radius-m);margin:22px 0;border:1px solid var(--line)}
.article-body hr{border:0;height:1px;background:var(--line);margin:34px 0}
.article-body table{
  width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;
  background:rgba(11,23,40,.5);border:1px solid var(--line);border-radius:var(--radius-s);overflow:hidden;
}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left}
.article-body th{background:rgba(53,224,208,.08);color:#fff;font-weight:600;white-space:nowrap}
.article-body tr:last-child td{border-bottom:0}
.article-body code{
  padding:2px 7px;border-radius:6px;font-size:.92em;
  background:rgba(124,92,255,.16);color:#CFC4FF;
}
.article-body pre{
  padding:16px 18px;border-radius:var(--radius-s);overflow:auto;margin:20px 0;
  background:rgba(4,10,18,.85);border:1px solid var(--line);color:#C8E8E4;font-size:14px;
}
.article-empty{
  max-width:820px;padding:46px 30px;text-align:center;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-l);
  backdrop-filter:blur(16px);box-shadow:var(--shadow);
}
.article-empty i{font-size:34px;color:var(--amber);margin-bottom:14px;display:block}
.article-empty .empty-title{font-size:1.3rem;font-weight:700;color:#fff;margin-bottom:10px}
.article-empty .empty-desc{color:var(--muted);font-size:14.5px;margin-bottom:22px}

/* ---------- 文末要点与相关推荐 ---------- */
.key-box{
  max-width:820px;margin-top:38px;padding:22px 24px;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-m);
  backdrop-filter:blur(16px);
}
.key-box h3{font-size:1.05rem;font-weight:700;color:#fff;margin-bottom:14px;display:flex;align-items:center;gap:9px}
.key-box h3 i{color:var(--amber)}
.key-tags{display:flex;flex-wrap:wrap;gap:10px}
.rel-section{margin-top:56px}
.rel-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:26px;flex-wrap:wrap}
.rel-head h2{font-size:clamp(1.4rem,2.3vw,1.9rem);font-weight:700;color:#fff}
.rel-head p{font-size:14px;color:var(--muted)}
.rel-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.rel-card{
  display:block;overflow:hidden;border-radius:var(--radius-m);
  background:var(--panel);border:1px solid var(--line);
  backdrop-filter:blur(16px);box-shadow:var(--shadow);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.rel-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 22px 60px rgba(0,0,0,.45),0 0 0 1px rgba(53,224,208,.14)}
.rel-card.offset{margin-top:28px}
.rel-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--panel-solid)}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.rel-card:hover .rel-thumb img{transform:scale(1.05)}
.rel-body{padding:20px 22px 22px}
.rel-body h3{font-size:1.08rem;font-weight:600;color:#fff;line-height:1.5;margin:12px 0 10px}
.rel-body p{font-size:14px;color:var(--muted);line-height:1.7;margin-bottom:14px}
.rel-meta{display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--muted)}
.rel-meta span{display:inline-flex;align-items:center;gap:6px}
.rel-meta i{color:var(--primary)}

/* ---------- 侧栏 ---------- */
.article-side{position:sticky;top:110px;display:flex;flex-direction:column;gap:20px}
.side-card{
  padding:22px;border-radius:var(--radius-m);
  background:var(--panel);border:1px solid var(--line);
  backdrop-filter:blur(16px);box-shadow:var(--shadow);
}
.side-card.accent{
  border-color:var(--line-strong);
  background:linear-gradient(160deg,rgba(53,224,208,.12),rgba(124,92,255,.1));
}
.side-title{font-size:1rem;font-weight:700;color:#fff;display:flex;align-items:center;gap:9px;margin-bottom:14px}
.side-title i{color:var(--primary)}
.side-links li + li{margin-top:4px}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:9px 12px;border-radius:10px;font-size:14.5px;color:#CBD9EA;
}
.side-links a:hover{background:rgba(53,224,208,.09);color:#fff}
.side-links a i{font-size:11px;color:var(--muted)}
.side-card p{font-size:14px;color:var(--muted);line-height:1.75;margin-bottom:16px}

/* ---------- CTA ---------- */
.cta-panel{
  position:relative;overflow:hidden;
  padding:46px 40px;border-radius:var(--radius-l);
  background-image:linear-gradient(120deg,rgba(5,11,20,.9),rgba(11,23,40,.78)),url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow);
  display:flex;align-items:center;justify-content:space-between;gap:34px;flex-wrap:wrap;
}
.cta-panel::after{
  content:"";position:absolute;width:420px;height:420px;right:-120px;bottom:-220px;border-radius:50%;
  background:radial-gradient(circle,rgba(124,92,255,.24),transparent 70%);
}
.cta-copy{max-width:640px;position:relative;z-index:1}
.cta-copy h2{font-size:clamp(1.5rem,2.4vw,2rem);font-weight:700;color:#fff;margin-bottom:12px}
.cta-copy p{font-size:15px;color:#C8D8E8}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;position:relative;z-index:1}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:24px;padding:70px 0 0;
  background:linear-gradient(180deg,rgba(7,17,31,.4),rgba(4,10,18,.95));
  border-top:1px solid var(--line);
}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:38px}
.foot-brand .brand{margin-bottom:16px}
.foot-brand p{font-size:14px;color:var(--muted);line-height:1.8;max-width:340px}
.foot-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.foot-links li + li{margin-top:10px}
.foot-links a{font-size:14px;color:var(--muted)}
.foot-links a:hover{color:var(--primary)}
.foot-contact li{display:flex;gap:10px;font-size:14px;color:var(--muted);line-height:1.7}
.foot-contact li + li{margin-top:12px}
.foot-contact i{color:var(--primary);margin-top:5px}
.foot-bottom{
  margin-top:52px;padding:20px 0;
  border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);
}

/* ---------- 移动端抽屉 ---------- */
.nav-drawer{background:#07111F;border-left:1px solid var(--line);color:var(--text)}
.nav-drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px}
.drawer-title{font-weight:700;color:#fff;font-size:16px}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 16px;border-radius:12px;font-size:15px;color:#CBD9EA;
  border:1px solid transparent;
}
.drawer-link:hover,.drawer-link.active{color:#fff;background:rgba(53,224,208,.09);border-color:var(--line-strong)}
.drawer-link i{font-size:12px;color:var(--muted)}
.btn-close-white{filter:invert(1) grayscale(1) brightness(1.8)}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .article-shell{grid-template-columns:minmax(0,1fr) 270px;gap:32px}
  .foot-grid{grid-template-columns:1.4fr 1fr 1fr;gap:30px}
}
@media (max-width:991.98px){
  .section-space{padding:64px 0}
  .article-shell{grid-template-columns:minmax(0,1fr);gap:34px}
  .article-side{position:static;flex-direction:row;flex-wrap:wrap}
  .article-side .side-card{flex:1 1 280px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767.98px){
  .section-space{padding:56px 0}
  .topbar-note{display:none}
  .brand-text small{display:none}
  .article-hero{padding:34px 0 28px}
  .article-cover{aspect-ratio:16/9;border-radius:var(--radius-m)}
  .article-section{padding:48px 0 60px}
  .article-body{font-size:16px}
  .rel-grid{grid-template-columns:minmax(0,1fr);gap:18px}
  .rel-card.offset{margin-top:0}
  .cta-panel{padding:32px 24px;gap:22px}
  .cta-actions{width:100%}
  .cta-actions .btn-glow,.cta-actions .btn-glass{flex:1 1 160px}
  .foot-grid{grid-template-columns:1fr;gap:26px}
  .foot-bottom{flex-direction:column;align-items:flex-start;text-align:left}
}
@media (max-width:575.98px){
  .container{padding-inline:16px}
  .article-title{font-size:1.6rem}
  .post-meta{gap:8px 14px;font-size:13px}
  .key-box{padding:18px}
  .btn-glow,.btn-glass{padding:11px 18px;font-size:14px}
}

/* roulang page: category1 */
:root{
  --bg:#050B14;
  --bg-2:#07111F;
  --glass:rgba(11,23,40,.62);
  --glass-solid:#0B1728;
  --cyan:#35E0D0;
  --amber:#FFB45A;
  --violet:#7C5CFF;
  --ok:#3DDC97;
  --text:#EAF4FF;
  --muted:#9FB3C8;
  --line:rgba(255,255,255,.08);
  --line-cyan:rgba(53,224,208,.18);
  --r-sm:12px;
  --r-md:18px;
  --r-lg:24px;
  --shadow:0 18px 60px rgba(0,0,0,.35);
  --glow:0 0 28px rgba(53,224,208,.35);
  --space:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.75;font-weight:400;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:
    radial-gradient(680px 420px at 12% -6%, rgba(53,224,208,.16), transparent 62%),
    radial-gradient(720px 460px at 96% 8%, rgba(124,92,255,.14), transparent 64%),
    radial-gradient(600px 400px at 50% 108%, rgba(255,180,90,.08), transparent 66%),
    linear-gradient(180deg,#050B14 0%,#07111F 52%,#050B14 100%);
}
img{max-width:100%;display:block;border:0}
a{color:var(--cyan);text-decoration:none;transition:color .2s ease,opacity .2s ease}
a:hover{color:#7ef3e6}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5{margin:0;font-weight:700;line-height:1.28;letter-spacing:.2px}
p{margin:0}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:1320px;padding-left:22px;padding-right:22px;margin:0 auto}

/* ---------- 顶部信息条 ---------- */
.topbar{
  background:rgba(5,11,20,.82);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  font-size:12.5px;
  position:relative;
  z-index:1002;
}
.topbar-inner{
  min-height:38px;display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.topbar-domain{color:var(--muted);display:inline-flex;align-items:center;gap:8px;letter-spacing:.3px}
.topbar-domain i{color:var(--cyan)}
.topbar-note{color:var(--muted);display:inline-flex;align-items:center;gap:8px;flex:1;justify-content:center}
.topbar-note i{color:var(--amber)}
.topbar-cta{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 14px;border-radius:999px;
  border:1px solid var(--line-cyan);
  color:var(--cyan);font-size:12.5px;white-space:nowrap;
  transition:.22s ease;
}
.topbar-cta:hover{background:rgba(53,224,208,.12);box-shadow:0 0 18px rgba(53,224,208,.22);color:#8df5ea}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1001;
  background:rgba(5,11,20,.72);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-stuck{box-shadow:0 14px 40px rgba(0,0,0,.45);background:rgba(5,11,20,.9)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:22px;min-height:74px}
.brand{display:inline-flex;align-items:center;gap:12px;color:var(--text)}
.brand:hover{color:var(--text)}
.brand-mark{
  width:42px;height:42px;border-radius:13px;flex:0 0 auto;
  display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(53,224,208,.95),rgba(124,92,255,.92));
  color:#04121a;font-size:18px;
  box-shadow:0 0 26px rgba(53,224,208,.35);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text b{font-size:17px;font-weight:700;letter-spacing:.4px}
.brand-text small{font-size:11.5px;color:var(--muted);letter-spacing:1.4px}
.nav-links{
  display:flex;align-items:center;gap:6px;flex:1;justify-content:center;flex-wrap:nowrap;
}
.nav-links a{
  position:relative;
  color:var(--muted);font-size:14.5px;font-weight:500;
  padding:9px 13px;border-radius:10px;white-space:nowrap;
  transition:.22s ease;
}
.nav-links a:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-links a.active{color:var(--cyan)}
.nav-links a.active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--cyan),var(--violet));
  box-shadow:0 0 12px rgba(53,224,208,.6);
}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.btn-glow{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:999px;border:0;cursor:pointer;
  font-size:14.5px;font-weight:600;color:#04121a;
  background:linear-gradient(120deg,var(--cyan),#6ee0ff 45%,var(--violet));
  box-shadow:var(--glow);
  transition:transform .22s ease,box-shadow .22s ease,filter .22s ease;
}
.btn-glow:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 0 36px rgba(53,224,208,.5);color:#04121a}
.btn-glow:active{transform:translateY(1px)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 20px;border-radius:999px;cursor:pointer;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line-cyan);
  color:var(--text);font-size:14.5px;font-weight:500;
  transition:.22s ease;
}
.btn-ghost:hover{background:rgba(53,224,208,.1);border-color:rgba(53,224,208,.45);transform:translateY(-2px);color:var(--text)}
.btn-ghost:active{transform:translateY(1px)}
.btn-line{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 18px;border-radius:999px;
  border:1px dashed rgba(159,179,200,.35);
  color:var(--muted);font-size:13.5px;font-weight:500;
  transition:.22s ease;
}
.btn-line:hover{border-color:var(--cyan);color:var(--cyan)}
.burger{
  display:none;width:44px;height:44px;border-radius:12px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  color:var(--text);font-size:17px;align-items:center;justify-content:center;
}
.offcanvas{
  background:#07111F;color:var(--text);border-right:1px solid var(--line);
}
.offcanvas-header{border-bottom:1px solid var(--line)}
.offcanvas .nav-mobile a{
  display:flex;align-items:center;gap:10px;
  padding:14px 4px;color:var(--muted);font-size:15.5px;
  border-bottom:1px dashed var(--line);
}
.offcanvas .nav-mobile a.active{color:var(--cyan);font-weight:600}
.offcanvas .nav-mobile a i{width:18px;color:var(--cyan);font-size:13px}

/* ---------- 内页 banner ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:74px 0 66px;
  background:
    linear-gradient(115deg,rgba(5,11,20,.94) 0%,rgba(5,11,20,.78) 46%,rgba(7,17,31,.62) 100%),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";position:absolute;right:-120px;top:-80px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(53,224,208,.28),transparent 65%);
  pointer-events:none;
}
.crumb{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  font-size:13.5px;color:var(--muted);margin-bottom:20px;
}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--cyan)}
.crumb i{font-size:10px;opacity:.6}
.crumb span{color:var(--text)}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 15px;border-radius:999px;
  background:rgba(53,224,208,.1);
  border:1px solid var(--line-cyan);
  color:var(--cyan);font-size:13px;font-weight:500;
  margin-bottom:20px;
}
.page-hero h1{
  font-size:clamp(1.95rem,3.6vw,2.95rem);
  margin-bottom:16px;max-width:22em;
}
.page-hero .lead{
  color:var(--muted);font-size:16.5px;max-width:46em;margin-bottom:26px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;position:relative;z-index:2}
.tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 15px;border-radius:999px;
  background:rgba(11,23,40,.7);
  border:1px solid var(--line);
  font-size:13px;color:var(--muted);
}
.tag i{color:var(--cyan);font-size:12px}
.tag.warm{border-color:rgba(255,180,90,.3);color:#ffd7a5}
.tag.warm i{color:var(--amber)}
.tag.violet{border-color:rgba(124,92,255,.32);color:#cfc2ff}
.tag.violet i{color:var(--violet)}

/* ---------- 布局 ---------- */
.section-space{padding:var(--space) 0}
.section-head{margin-bottom:36px;max-width:60em}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--cyan);letter-spacing:1.6px;text-transform:uppercase;margin-bottom:12px;
}
.section-head h2{font-size:clamp(1.45rem,2.6vw,2.15rem);margin-bottom:12px}
.section-head p{color:var(--muted);font-size:15.5px}

.side-sticky{position:sticky;top:104px}

/* ---------- 入口矩阵 ---------- */
.entry-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.entry-card{
  position:relative;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:22px;
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow);
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
  display:flex;flex-direction:column;gap:12px;
}
.entry-card:hover{transform:translateY(-4px);border-color:var(--line-cyan);box-shadow:0 22px 60px rgba(0,0,0,.45),0 0 28px rgba(53,224,208,.16)}
.entry-card.wide{grid-column:span 2;flex-direction:row;align-items:center;gap:24px}
.entry-card.wide .entry-main{flex:1}
.entry-icon{
  width:46px;height:46px;border-radius:14px;flex:0 0 auto;
  display:grid;place-items:center;font-size:18px;
  background:linear-gradient(140deg,rgba(53,224,208,.2),rgba(124,92,255,.2));
  border:1px solid var(--line-cyan);color:var(--cyan);
}
.entry-card h3{font-size:1.15rem;margin-bottom:6px}
.entry-card p{color:var(--muted);font-size:14.5px}
.entry-meta{display:flex;flex-wrap:wrap;gap:8px;font-size:12.5px;color:var(--muted)}
.entry-meta span{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.04);padding:4px 10px;border-radius:999px;border:1px solid var(--line)}
.entry-head{display:flex;align-items:flex-start;justify-content:space-between;gap:14px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:999px;font-size:12px;font-weight:600;white-space:nowrap;
  border:1px solid transparent;
}
.badge-live{background:rgba(61,220,151,.12);border-color:rgba(61,220,151,.34);color:var(--ok)}
.badge-rec{background:rgba(53,224,208,.12);border-color:var(--line-cyan);color:var(--cyan)}
.badge-alt{background:rgba(255,180,90,.12);border-color:rgba(255,180,90,.34);color:var(--amber)}
.badge-info{background:rgba(124,92,255,.14);border-color:rgba(124,92,255,.34);color:#c3b4ff}

/* ---------- 场景图文 ---------- */
.scene-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.scene-card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow);
  transition:transform .24s ease,border-color .24s ease;
}
.scene-card:hover{transform:translateY(-4px);border-color:var(--line-cyan)}
.scene-card figure{margin:0;position:relative;aspect-ratio:16/9;overflow:hidden}
.scene-card figure img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.scene-card:hover figure img{transform:scale(1.04)}
.scene-card figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,11,20,.05),rgba(5,11,20,.72));
}
.scene-body{padding:22px}
.scene-body h3{font-size:1.2rem;margin-bottom:10px}
.scene-body p{color:var(--muted);font-size:14.5px;margin-bottom:14px}
.scene-list li{display:flex;gap:10px;align-items:flex-start;color:var(--muted);font-size:14.5px;padding:5px 0}
.scene-list i{color:var(--cyan);font-size:12px;margin-top:8px}

/* ---------- 步骤条 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;position:relative}
.steps::before{
  content:"";position:absolute;left:6%;right:6%;top:26px;height:1px;
  background:linear-gradient(90deg,rgba(53,224,208,.5),rgba(124,92,255,.42),rgba(255,180,90,.35));
  z-index:0;
}
.step{
  position:relative;z-index:1;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px 20px;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  transition:transform .24s ease,border-color .24s ease,background .24s ease;
}
.step:hover{transform:translateY(-4px);border-color:var(--line-cyan);background:rgba(11,23,40,.82)}
.step-num{
  width:52px;height:52px;border-radius:16px;display:grid;place-items:center;
  font-size:19px;font-weight:700;font-variant-numeric:tabular-nums;
  background:linear-gradient(140deg,rgba(53,224,208,.18),rgba(124,92,255,.18));
  border:1px solid var(--line-cyan);color:var(--cyan);margin-bottom:16px;
}
.step h3{font-size:1.05rem;margin-bottom:8px}
.step p{color:var(--muted);font-size:14px}

/* ---------- 提示卡 ---------- */
.tips-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:20px}
.tip-card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow);
}
.tip-card h3{font-size:1.08rem;margin-bottom:14px;display:flex;align-items:center;gap:10px}
.tip-card h3 i{color:var(--amber)}
.tip-stack{display:grid;gap:20px}
.tip-card.mini{padding:20px;border-color:rgba(53,224,208,.16)}
.tip-card.mini h3 i{color:var(--cyan)}
.check-list li{display:flex;gap:12px;align-items:flex-start;padding:8px 0;color:var(--muted);font-size:14.5px;border-bottom:1px dashed var(--line)}
.check-list li:last-child{border-bottom:0}
.check-list i{color:var(--ok);font-size:13px;margin-top:8px}
.check-list b{color:var(--text);font-weight:600}

/* ---------- 表格 ---------- */
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;border-radius:var(--r-md);border:1px solid var(--line);background:rgba(11,23,40,.55)}
.spec-table{width:100%;min-width:660px;border-collapse:collapse;font-size:14.5px}
.spec-table thead th{
  position:sticky;top:0;
  background:rgba(7,17,31,.96);
  color:var(--text);font-weight:600;font-size:14px;text-align:left;
  padding:16px 18px;border-bottom:1px solid var(--line);white-space:nowrap;
}
.spec-table tbody td{padding:15px 18px;border-bottom:1px solid var(--line);color:var(--muted);vertical-align:middle}
.spec-table tbody tr:last-child td{border-bottom:0}
.spec-table tbody tr:hover td{background:rgba(53,224,208,.05);color:var(--text)}
.spec-table td strong{color:var(--text);font-weight:600}
.dot-ok{display:inline-flex;align-items:center;gap:7px;color:var(--ok)}
.dot-no{display:inline-flex;align-items:center;gap:7px;color:#7f8f9f}
.dot-warn{display:inline-flex;align-items:center;gap:7px;color:var(--amber)}

/* ---------- 侧栏 ---------- */
.side-card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow);margin-bottom:20px;
}
.side-card h3{font-size:1.02rem;margin-bottom:14px;display:flex;align-items:center;gap:9px}
.side-card h3 i{color:var(--cyan);font-size:14px}
.anchor-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 12px;border-radius:var(--r-sm);color:var(--muted);font-size:14.5px;
  border:1px solid transparent;transition:.2s ease;
}
.anchor-list a:hover{background:rgba(53,224,208,.08);border-color:var(--line-cyan);color:var(--text);transform:translateX(3px)}
.anchor-list a i{font-size:11px;color:var(--cyan);opacity:.7}
.side-note{font-size:14px;color:var(--muted)}
.side-note b{color:var(--cyan)}
.side-list li{display:flex;justify-content:space-between;gap:12px;padding:9px 0;border-bottom:1px dashed var(--line);font-size:14px;color:var(--muted)}
.side-list li:last-child{border-bottom:0}
.side-list span:last-child{color:var(--text);font-variant-numeric:tabular-nums}

/* ---------- FAQ ---------- */
.faq-acc .accordion-item{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-md);
  margin-bottom:14px;overflow:hidden;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
}
.faq-acc .accordion-button{
  background:transparent;color:var(--text);font-weight:600;font-size:15.5px;
  padding:19px 22px;box-shadow:none;gap:14px;
}
.faq-acc .accordion-button:not(.collapsed){color:var(--cyan);background:rgba(53,224,208,.06)}
.faq-acc .accordion-button:focus{box-shadow:none;border-color:transparent}
.faq-acc .accordion-button::after{
  font-family:"Font Awesome 6 Free";font-weight:900;content:"\f078";
  background-image:none;width:auto;height:auto;font-size:12px;color:var(--cyan);
  transition:transform .26s ease;
}
.faq-acc .accordion-button:not(.collapsed)::after{transform:rotate(180deg)}
.faq-acc .accordion-body{color:var(--muted);font-size:14.8px;padding:4px 22px 22px;line-height:1.85}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  border:1px solid var(--line-cyan);
  background:
    linear-gradient(115deg,rgba(7,17,31,.92),rgba(11,23,40,.72)),
    url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  padding:46px 42px;
  box-shadow:var(--shadow);
}
.cta-band::after{
  content:"";position:absolute;left:-90px;bottom:-140px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(124,92,255,.28),transparent 66%);pointer-events:none;
}
.cta-band h2{font-size:clamp(1.4rem,2.4vw,2rem);margin-bottom:12px}
.cta-band p{color:var(--muted);max-width:52em;margin-bottom:24px;position:relative;z-index:2}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:2}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:var(--space);
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(7,17,31,.7),rgba(5,11,20,.98));
  padding-top:62px;
}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:34px;padding-bottom:40px}
.foot-brand p{color:var(--muted);font-size:14px;margin-top:16px;max-width:34em}
.foot-title{font-size:15px;margin-bottom:16px;font-weight:600}
.foot-links li,.foot-contact li{padding:6px 0;font-size:14px;color:var(--muted)}
.foot-links a{color:var(--muted)}
.foot-links a:hover{color:var(--cyan);padding-left:3px}
.foot-contact i{color:var(--cyan);width:18px;font-size:13px;margin-right:4px}
.foot-bottom{
  border-top:1px solid var(--line);
  padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:var(--muted);
}

/* ---------- 响应式 ---------- */
@media (max-width:1399.98px){
  :root{--space:80px}
}
@media (max-width:1199.98px){
  .nav-links a{padding:9px 10px;font-size:14px}
  .foot-grid{grid-template-columns:1.4fr 1fr 1fr;gap:26px}
}
@media (max-width:991.98px){
  :root{--space:64px}
  .burger{display:inline-flex}
  .nav-actions .btn-glow{display:none}
  .entry-grid{grid-template-columns:1fr}
  .entry-card.wide{grid-column:span 1;flex-direction:column;align-items:flex-start;gap:14px}
  .scene-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,1fr)}
  .steps::before{display:none}
  .tips-grid{grid-template-columns:1fr}
  .side-sticky{position:static}
  .foot-grid{grid-template-columns:1fr 1fr;gap:26px}
  .page-hero{padding:56px 0 48px}
}
@media (max-width:767.98px){
  :root{--space:56px}
  .page-hero{padding:46px 0 40px}
  .page-hero .lead{font-size:15.5px}
  .cta-band{padding:32px 22px}
  .cta-actions .btn-glow,.cta-actions .btn-ghost{width:100%}
  .foot-grid{grid-template-columns:1fr;gap:24px}
  .foot-bottom{flex-direction:column;gap:6px}
  .container{padding-left:16px;padding-right:16px}
}
@media (max-width:575.98px){
  .steps{grid-template-columns:1fr}
  .entry-card{padding:18px}
  .hero-tags .tag{font-size:12.5px;padding:6px 12px}
  .brand-text small{letter-spacing:.6px}
  .section-head{margin-bottom:26px}
}

/* roulang page: category2 */
:root{
  --bg:#050B14;
  --bg-soft:#07111F;
  --panel:rgba(11,23,40,.62);
  --panel-solid:#0B1728;
  --cyan:#35E0D0;
  --amber:#FFB45A;
  --purple:#7C5CFF;
  --ok:#3DDC97;
  --text:#EAF4FF;
  --muted:#9FB3C8;
  --line:rgba(255,255,255,.08);
  --line-cyan:rgba(53,224,208,.18);
  --r-sm:12px;
  --r:18px;
  --r-lg:24px;
  --shadow:0 18px 60px rgba(0,0,0,.35);
  --glow:0 0 28px rgba(53,224,208,.35);
  --space:88px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(760px 420px at 12% -6%, rgba(53,224,208,.14), transparent 62%),
    radial-gradient(680px 380px at 92% 4%, rgba(124,92,255,.13), transparent 62%),
    radial-gradient(720px 480px at 50% 108%, rgba(255,180,90,.07), transparent 60%);
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--cyan);text-decoration:none;transition:color .2s ease,opacity .2s ease}
a:hover{color:#7ff3e8}
h1,h2,h3,h4{font-weight:700;line-height:1.3;margin:0;letter-spacing:.2px}
h1{font-size:clamp(2rem,4vw,3.5rem)}
h2{font-size:clamp(1.5rem,2.6vw,2.3rem)}
h3{font-size:1.28rem}
p{margin:0 0 16px}
ul{margin:0;padding:0;list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px;border-radius:8px}
.container{max-width:1320px;padding-left:20px;padding-right:20px;margin:0 auto;position:relative;z-index:1}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* 顶部信息条 */
.topbar{
  background:rgba(7,17,31,.88);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(12px);
  font-size:12.5px;
  color:var(--muted);
}
.topbar-inner{
  min-height:38px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:6px 20px;
}
.topbar .tb-domain{display:flex;align-items:center;gap:8px;color:#cfe4f5}
.topbar .tb-domain i{color:var(--cyan)}
.tb-tip{
  flex:1;
  text-align:center;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
  color:var(--muted);
}
.tb-tip b{color:var(--amber);font-weight:600}
.tb-action{
  color:var(--cyan);
  border:1px solid var(--line-cyan);
  border-radius:999px;
  padding:3px 14px;
  font-size:12.5px;
  white-space:nowrap;
}
.tb-action:hover{background:rgba(53,224,208,.1)}

/* 主导航 */
.site-header{
  position:sticky;
  top:0;
  z-index:1040;
  background:rgba(5,11,20,.72);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.scrolled{
  box-shadow:0 14px 40px rgba(0,0,0,.5);
  background:rgba(5,11,20,.92);
}
.nav-row{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:70px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  color:var(--text);
  flex-shrink:0;
}
.brand:hover{color:var(--text)}
.brand-mark{
  width:42px;height:42px;
  border-radius:14px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(53,224,208,.9),rgba(124,92,255,.85));
  color:#04121A;
  font-size:18px;
  box-shadow:var(--glow);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text b{font-size:18px;font-weight:700;letter-spacing:.4px}
.brand-text small{font-size:11.5px;color:var(--muted);letter-spacing:.6px}
.nav-links{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:auto;
}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:9px 14px;
  border-radius:999px;
  color:#C6D8E8;
  font-size:15px;
  white-space:nowrap;
}
.nav-links a:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-links a.active{color:var(--cyan)}
.nav-links a.active::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:2px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--cyan),var(--purple));
  box-shadow:0 0 12px rgba(53,224,208,.7);
}
.nav-cta{
  margin-left:12px;
  flex-shrink:0;
}
.nav-toggle{
  margin-left:auto;
  width:44px;height:44px;
  border-radius:14px;
  border:1px solid var(--line-cyan);
  background:rgba(11,23,40,.7);
  color:var(--cyan);
  display:none;
  place-items:center;
}

/* 按钮 */
.btn-glow,.btn-ghost,.btn-soft{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:999px;
  padding:12px 26px;
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
  line-height:1.4;
}
.btn-glow{
  background:linear-gradient(120deg,var(--cyan),#57c9ff 45%,var(--purple));
  color:#04121A;
  box-shadow:var(--glow);
}
.btn-glow:hover{transform:translateY(-2px);box-shadow:0 0 34px rgba(53,224,208,.5);color:#04121A}
.btn-glow:active{transform:translateY(0);box-shadow:0 0 18px rgba(53,224,208,.35)}
.btn-ghost{
  background:rgba(11,23,40,.5);
  border-color:var(--line-cyan);
  color:var(--cyan);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{background:rgba(53,224,208,.12);border-color:rgba(53,224,208,.42);transform:translateY(-2px);color:var(--cyan)}
.btn-soft{
  background:rgba(255,255,255,.05);
  border-color:var(--line);
  color:#D6E6F4;
  padding:10px 20px;
  font-size:14px;
}
.btn-soft:hover{background:rgba(255,255,255,.1);color:var(--text)}
.btn-glow.w-100,.btn-ghost.w-100{width:100%}

/* 通用板块 */
.section{padding:var(--space) 0;position:relative;z-index:1}
.section-tight{padding:calc(var(--space) * .62) 0}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12.5px;
  letter-spacing:2px;
  color:var(--cyan);
  text-transform:uppercase;
  border:1px solid var(--line-cyan);
  border-radius:999px;
  padding:5px 14px;
  background:rgba(53,224,208,.07);
  margin-bottom:18px;
}
.sec-head{max-width:760px;margin-bottom:44px}
.sec-head p{color:var(--muted);margin-top:14px;margin-bottom:0}
.text-muted-2{color:var(--muted)}

/* Hero */
.hero{
  position:relative;
  padding:86px 0 74px;
  overflow:hidden;
  background-image:linear-gradient(100deg,rgba(5,11,20,.95) 18%,rgba(5,11,20,.72) 58%,rgba(5,11,20,.9)),url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
}
.hero::after{
  content:"";
  position:absolute;
  right:-120px;top:-80px;
  width:520px;height:520px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(53,224,208,.22),transparent 66%);
  pointer-events:none;
}
.hero-grid{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:56px;
  align-items:center;
}
.hero h1 span.hl{
  background:linear-gradient(100deg,var(--cyan),#8ff3ff 40%,var(--amber));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-sub{
  font-size:17px;
  color:#C7DAEA;
  margin:20px 0 30px;
  max-width:560px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px}
.chip{
  display:inline-flex;
  align-items:center;
  gap:7px;
  font-size:13px;
  color:#CFE3F2;
  border:1px solid var(--line);
  background:rgba(11,23,40,.55);
  border-radius:999px;
  padding:6px 14px;
}
.chip i{color:var(--cyan)}

.glass-card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  backdrop-filter:blur(16px);
  box-shadow:var(--shadow);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.glass-card:hover{
  transform:translateY(-4px);
  border-color:rgba(53,224,208,.36);
  box-shadow:0 22px 70px rgba(0,0,0,.45),0 0 30px rgba(53,224,208,.12);
}
.hero-card{padding:26px}
.hero-card h3{font-size:1.1rem;margin-bottom:6px}
.hero-card .hc-label{font-size:12.5px;color:var(--muted);letter-spacing:1px}
.stat-row{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:12px;
  margin:18px 0 20px;
}
.stat-box{
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  padding:12px 14px;
  background:rgba(7,17,31,.6);
}
.stat-box b{display:block;font-size:22px;color:var(--cyan);letter-spacing:.5px}
.stat-box span{font-size:12.5px;color:var(--muted)}
.hero-card .divider{height:1px;background:var(--line);margin:16px 0}
.hc-line{display:flex;justify-content:space-between;font-size:13.5px;color:var(--muted);padding:5px 0}
.hc-line b{color:var(--text);font-weight:600}

/* 优惠阶梯 */
.ladder{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
  position:relative;
}
.ladder::before{
  content:"";
  position:absolute;
  top:46px;left:6%;right:6%;
  height:2px;
  background:linear-gradient(90deg,rgba(53,224,208,.5),rgba(124,92,255,.5),rgba(255,180,90,.5));
  opacity:.6;
  z-index:0;
}
.step-card{
  position:relative;
  z-index:1;
  padding:24px 20px;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r);
  backdrop-filter:blur(14px);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
  display:flex;
  flex-direction:column;
}
.step-card:hover{transform:translateY(-4px);border-color:rgba(53,224,208,.4);box-shadow:0 0 30px rgba(53,224,208,.14)}
.step-card.current{
  border-color:rgba(53,224,208,.55);
  box-shadow:0 0 34px rgba(53,224,208,.2);
}
.step-no{
  width:42px;height:42px;
  border-radius:14px;
  display:grid;place-items:center;
  background:rgba(53,224,208,.14);
  border:1px solid var(--line-cyan);
  color:var(--cyan);
  font-weight:700;
  margin-bottom:16px;
}
.step-card h3{font-size:1.1rem;margin-bottom:8px}
.step-card p{font-size:14px;color:var(--muted);margin-bottom:14px}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.tag{
  font-size:12px;
  padding:4px 11px;
  border-radius:999px;
  border:1px solid var(--line);
  color:#C9DCEC;
  background:rgba(255,255,255,.04);
}
.tag.cyan{color:var(--cyan);border-color:var(--line-cyan);background:rgba(53,224,208,.09)}
.tag.amber{color:var(--amber);border-color:rgba(255,180,90,.3);background:rgba(255,180,90,.09)}
.tag.purple{color:#B8A7FF;border-color:rgba(124,92,255,.32);background:rgba(124,92,255,.1)}
.step-card .btn-soft{margin-top:auto}

/* 限时入口 */
.countdown-wrap{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:36px;
  align-items:center;
  padding:34px;
  border-radius:var(--r-lg);
  background:
    radial-gradient(520px 260px at 100% 0%, rgba(124,92,255,.18), transparent 62%),
    rgba(11,23,40,.66);
  border:1px solid var(--line);
  backdrop-filter:blur(16px);
  box-shadow:var(--shadow);
}
.countdown{
  display:flex;
  gap:12px;
  margin:22px 0 24px;
}
.cd-block{
  min-width:78px;
  padding:12px 8px;
  text-align:center;
  border-radius:var(--r-sm);
  background:rgba(7,17,31,.8);
  border:1px solid var(--line-cyan);
}
.cd-block b{display:block;font-size:28px;color:var(--cyan);font-variant-numeric:tabular-nums;letter-spacing:1px}
.cd-block span{font-size:12px;color:var(--muted)}
.progress-line{
  height:10px;
  border-radius:999px;
  background:rgba(255,255,255,.07);
  overflow:hidden;
  border:1px solid var(--line);
}
.progress-line > i{
  display:block;
  height:100%;
  width:72%;
  border-radius:999px;
  background:linear-gradient(90deg,var(--cyan),var(--amber));
  box-shadow:0 0 16px rgba(53,224,208,.45);
}
.progress-meta{display:flex;justify-content:space-between;font-size:13px;color:var(--muted);margin:10px 0 20px}
.progress-meta b{color:var(--text)}
.rule-list li{
  display:flex;
  gap:10px;
  font-size:14.5px;
  color:#C6D8E8;
  padding:9px 0;
  border-bottom:1px dashed var(--line);
}
.rule-list li:last-child{border-bottom:0}
.rule-list i{color:var(--cyan);margin-top:5px}

/* 图文权益 */
.split{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:46px;
  align-items:center;
}
.split-media{
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  position:relative;
}
.split-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.split-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,transparent 45%,rgba(5,11,20,.72));
}
.media-caption{
  position:absolute;
  left:20px;bottom:16px;
  z-index:2;
  font-size:13.5px;
  color:#D6E8F6;
}
.feat-list{display:grid;gap:16px;margin-top:26px}
.feat-item{
  display:flex;
  gap:14px;
  padding:16px 18px;
  border-radius:var(--r);
  border:1px solid var(--line);
  background:rgba(11,23,40,.5);
  transition:border-color .2s ease,transform .2s ease;
}
.feat-item:hover{border-color:rgba(53,224,208,.34);transform:translateY(-3px)}
.feat-item .fi-icon{
  width:38px;height:38px;flex-shrink:0;
  border-radius:12px;
  display:grid;place-items:center;
  background:rgba(53,224,208,.12);
  color:var(--cyan);
}
.feat-item h4{font-size:1rem;margin-bottom:4px}
.feat-item p{font-size:13.8px;color:var(--muted);margin:0}

/* 流程 */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.flow-item{
  padding:22px 20px;
  border-radius:var(--r);
  border:1px solid var(--line);
  background:rgba(11,23,40,.5);
  position:relative;
}
.flow-item .fi-no{
  font-size:13px;
  color:var(--amber);
  letter-spacing:1px;
  margin-bottom:10px;
  display:block;
}
.flow-item h3{font-size:1.05rem;margin-bottom:8px}
.flow-item p{font-size:13.8px;color:var(--muted);margin:0}

/* 手风琴 */
.acc-glass .accordion-item{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r) !important;
  margin-bottom:14px;
  overflow:hidden;
  backdrop-filter:blur(14px);
}
.acc-glass .accordion-button{
  background:transparent;
  color:var(--text);
  font-weight:600;
  font-size:16px;
  padding:20px 22px;
  box-shadow:none;
  border:0;
}
.acc-glass .accordion-button:not(.collapsed){color:var(--cyan);background:rgba(53,224,208,.07)}
.acc-glass .accordion-button:focus{box-shadow:none;border-color:transparent}
.acc-glass .accordion-button::after{
  filter:invert(84%) sepia(28%) saturate(1240%) hue-rotate(120deg);
  transition:transform .24s ease;
}
.acc-glass .accordion-body{
  color:#C6D8E8;
  font-size:14.6px;
  padding:6px 22px 22px;
  line-height:1.8;
}
.acc-glass .accordion-body ul li{
  display:flex;
  gap:9px;
  padding:5px 0;
}
.acc-glass .accordion-body i{color:var(--cyan);margin-top:6px}

/* 表单 */
.form-shell{
  display:grid;
  grid-template-columns:.9fr 1.1fr;
  gap:44px;
  padding:40px;
  border-radius:var(--r-lg);
  background:rgba(11,23,40,.62);
  border:1px solid var(--line);
  backdrop-filter:blur(16px);
  box-shadow:var(--shadow);
}
.trust-list li{
  display:flex;
  gap:10px;
  font-size:14.5px;
  color:#C6D8E8;
  padding:8px 0;
}
.trust-list i{color:var(--ok);margin-top:5px}
.form-label-sm{
  display:block;
  font-size:13.5px;
  color:#C6D8E8;
  margin-bottom:7px;
}
.form-control,.form-select{
  background:rgba(7,17,31,.78);
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  color:var(--text);
  padding:12px 14px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.form-control::placeholder{color:#6D8199}
.form-control:focus,.form-select:focus{
  background:rgba(7,17,31,.95);
  border-color:rgba(53,224,208,.6);
  box-shadow:0 0 0 3px rgba(53,224,208,.14);
  color:var(--text);
}
.form-select option{background:#0B1728;color:var(--text)}
.form-check-input{
  background-color:rgba(7,17,31,.8);
  border-color:var(--line);
}
.form-check-input:checked{background-color:var(--cyan);border-color:var(--cyan)}
.form-check-label{font-size:13.5px;color:var(--muted)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}

/* CTA 条 */
.cta-band{
  padding:46px 40px;
  border-radius:var(--r-lg);
  text-align:center;
  background:
    radial-gradient(560px 260px at 50% 0%, rgba(53,224,208,.2), transparent 66%),
    rgba(11,23,40,.7);
  border:1px solid var(--line-cyan);
  backdrop-filter:blur(16px);
  box-shadow:var(--shadow);
}
.cta-band h2{margin-bottom:14px}
.cta-band p{color:var(--muted);max-width:640px;margin:0 auto 26px}
.cta-actions{display:flex;justify-content:center;gap:14px;flex-wrap:wrap}

/* 页脚 */
.site-footer{
  margin-top:20px;
  padding:64px 0 26px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(7,17,31,.4),rgba(5,11,20,.95));
  position:relative;
  z-index:1;
}
.foot-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.3fr;
  gap:38px;
  padding-bottom:38px;
  border-bottom:1px solid var(--line);
}
.foot-brand p{color:var(--muted);font-size:14px;margin-top:16px;max-width:340px}
.foot-title{font-size:15px;margin-bottom:16px;color:#D9E9F6}
.foot-links li,.foot-contact li{padding:6px 0;font-size:14px;color:var(--muted)}
.foot-links a{color:var(--muted)}
.foot-links a:hover{color:var(--cyan)}
.foot-contact i{color:var(--cyan);width:18px}
.foot-bottom{
  display:flex;
  justify-content:space-between;
  gap:14px;
  flex-wrap:wrap;
  padding-top:22px;
  font-size:13px;
  color:#7C90A6;
}

/* 响应式 */
@media (max-width:1399.98px){
  :root{--space:80px}
}
@media (max-width:1199.98px){
  .hero-grid{grid-template-columns:1fr 1fr;gap:34px}
  .ladder{grid-template-columns:repeat(2,1fr)}
  .ladder::before{display:none}
  .flow{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:991.98px){
  .nav-links,.nav-cta{display:none !important}
  .nav-toggle{display:grid}
  .hero{padding:64px 0 56px}
  .hero-grid{grid-template-columns:1fr}
  .countdown-wrap{grid-template-columns:1fr;padding:26px}
  .split{grid-template-columns:1fr;gap:28px}
  .form-shell{grid-template-columns:1fr;padding:28px;gap:28px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767.98px){
  :root{--space:56px}
  .topbar .tb-tip{display:none}
  .tb-action{padding:3px 12px}
  .hero-actions .btn-glow,.hero-actions .btn-ghost{width:100%}
  .ladder{grid-template-columns:1fr}
  .flow{grid-template-columns:1fr}
  .stat-row{grid-template-columns:1fr 1fr}
  .form-row{grid-template-columns:1fr}
  .cta-band{padding:34px 22px}
  .brand-text b{font-size:16px}
  .countdown{gap:8px}
  .cd-block{min-width:64px}
  .cd-block b{font-size:22px}
}
@media (max-width:575.98px){
  .container{padding-left:16px;padding-right:16px}
  .foot-grid{grid-template-columns:1fr}
  .foot-bottom{flex-direction:column;gap:6px}
  .hero-card{padding:20px}
  .sec-head{margin-bottom:32px}
}
.offcanvas{
  background:#07111F;
  color:var(--text);
  border-right:1px solid var(--line);
}
.offcanvas .oc-link{
  display:block;
  padding:14px 6px;
  border-bottom:1px solid var(--line);
  color:#C6D8E8;
  font-size:15.5px;
}
.offcanvas .oc-link.active{color:var(--cyan)}
.offcanvas .oc-link:hover{color:var(--cyan)}

/* roulang page: category3 */
:root{
  --bg:#050B14;
  --bg-2:#07111F;
  --glass:#0B1728;
  --primary:#35E0D0;
  --amber:#FFB45A;
  --purple:#7C5CFF;
  --success:#3DDC97;
  --text:#EAF4FF;
  --muted:#9FB3C8;
  --line:rgba(255,255,255,.08);
  --line-primary:rgba(53,224,208,.18);
  --radius-s:12px;
  --radius-m:18px;
  --radius-l:24px;
  --shadow-glass:0 18px 60px rgba(0,0,0,.35);
  --shadow-glow:0 0 28px rgba(53,224,208,.35);
  --section:88px;
  --container:1320px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(900px 520px at 12% -6%, rgba(53,224,208,.16), transparent 62%),
    radial-gradient(760px 460px at 92% 4%, rgba(124,92,255,.16), transparent 60%),
    radial-gradient(700px 500px at 50% 110%, rgba(255,180,90,.08), transparent 65%),
    linear-gradient(180deg,#050B14 0%,#07111F 100%);
  z-index:-2;
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.028) 1px, transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 50% 20%, #000 20%, transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 20%, #000 20%, transparent 78%);
  z-index:-1;
  pointer-events:none;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:var(--primary);}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{font-weight:700;line-height:1.28;margin:0;letter-spacing:.2px;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px;border-radius:6px;}
.container{max-width:var(--container);width:100%;padding-left:20px;padding-right:20px;margin:0 auto;}
.section{padding:var(--section) 0;position:relative;}
.section-head{max-width:760px;margin-bottom:44px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--primary);border:1px solid var(--line-primary);
  background:rgba(53,224,208,.07);border-radius:999px;padding:6px 14px;margin-bottom:16px;
}
.h1{font-size:clamp(2rem,4vw,3.5rem);}
.h2{font-size:clamp(1.5rem,2.6vw,2.3rem);}
.h3{font-size:1.28rem;}
.lead{color:var(--muted);font-size:1.02rem;max-width:720px;}
.muted{color:var(--muted);}
.tnum{font-variant-numeric:tabular-nums;}

/* ============ 顶部信息条 ============ */
.topbar{
  background:rgba(6,14,26,.82);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  font-size:12.5px;
}
.topbar-inner{
  min-height:36px;display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.topbar-left,.topbar-mid,.topbar-right{display:flex;align-items:center;gap:8px;color:var(--muted);}
.topbar-left i{color:var(--primary);}
.topbar-cta{
  color:var(--bg);
  background:linear-gradient(120deg,var(--primary),#5fd8ff);
  border-radius:999px;padding:4px 14px;font-weight:600;
}
.topbar-cta:hover{color:var(--bg);filter:brightness(1.08);}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:1030;}
.navbar-wrap{
  background:rgba(7,17,31,.72);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s ease,background .3s ease;
}
.site-header.scrolled .navbar-wrap{
  background:rgba(6,14,26,.94);
  box-shadow:0 14px 40px rgba(0,0,0,.45);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:72px;}
.brand{display:inline-flex;align-items:center;gap:12px;}
.brand-mark{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(53,224,208,.22),rgba(124,92,255,.28));
  border:1px solid var(--line-primary);color:var(--primary);font-size:16px;
  box-shadow:0 0 22px rgba(53,224,208,.22);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text b{font-size:17px;font-weight:700;letter-spacing:.3px;}
.brand-text small{font-size:11.5px;color:var(--muted);letter-spacing:.08em;}
.nav-links{gap:6px;align-items:center;}
.nav-links a{
  position:relative;padding:9px 14px;border-radius:999px;font-size:14.5px;color:var(--muted);
  white-space:nowrap;transition:all .22s ease;
}
.nav-links a:hover{color:var(--text);background:rgba(255,255,255,.045);}
.nav-links a.active{color:var(--text);background:rgba(53,224,208,.1);border:1px solid var(--line-primary);}
.nav-links a.active::after{
  content:"";position:absolute;left:50%;bottom:-2px;transform:translateX(-50%);
  width:22px;height:2px;border-radius:2px;background:var(--primary);box-shadow:var(--shadow-glow);
}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  width:42px;height:42px;border-radius:12px;background:rgba(255,255,255,.05);
  border:1px solid var(--line);color:var(--text);
}
.mobile-drawer{
  display:none;background:rgba(6,14,26,.98);border-bottom:1px solid var(--line);
  padding:10px 20px 20px;
}
.mobile-drawer.open{display:block;}
.mobile-drawer a{
  display:block;padding:12px 6px;border-bottom:1px solid rgba(255,255,255,.05);
  color:var(--muted);font-size:15px;
}
.mobile-drawer a.active{color:var(--primary);}
.mobile-drawer a:last-child{border-bottom:0;}

/* ============ 按钮 ============ */
.btn-main,.btn-ghost,.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;font-weight:600;font-size:15px;padding:12px 26px;
  transition:transform .2s ease,box-shadow .25s ease,filter .25s ease,background .25s ease;
  border:1px solid transparent;cursor:pointer;
}
.btn-main{
  background:linear-gradient(120deg,var(--primary),var(--purple));
  color:#04121A;box-shadow:var(--shadow-glow);
}
.btn-main:hover{transform:translateY(-2px);filter:brightness(1.08);color:#04121A;}
.btn-ghost{
  background:rgba(255,255,255,.05);border-color:var(--line-primary);color:var(--text);
}
.btn-ghost:hover{transform:translateY(-2px);border-color:var(--primary);color:var(--text);}
.btn-line{
  background:transparent;border-color:var(--line);color:var(--muted);font-size:14px;padding:9px 18px;
}
.btn-line:hover{color:var(--text);border-color:var(--primary);}
.btn-main:active,.btn-ghost:active,.btn-line:active{transform:translateY(1px);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-block{width:100%;}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  padding:96px 0 84px;
  background-image:linear-gradient(90deg,rgba(5,11,20,.94) 0%,rgba(5,11,20,.72) 48%,rgba(7,17,31,.58) 100%),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.hero::after{
  content:"";position:absolute;right:-120px;top:-120px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(53,224,208,.24),transparent 66%);filter:blur(10px);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:52px;align-items:center;}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:18px;flex-wrap:wrap;}
.crumb a{color:var(--muted);}
.crumb span{opacity:.5;}
.hero .lead{margin:18px 0 28px;font-size:1.06rem;color:#C6D6E6;max-width:620px;}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;}
.hero-badges{display:flex;gap:10px;flex-wrap:wrap;margin-top:30px;}
.badge-soft{
  display:inline-flex;align-items:center;gap:7px;font-size:13px;color:var(--muted);
  background:rgba(255,255,255,.05);border:1px solid var(--line);border-radius:999px;padding:6px 14px;
}
.badge-soft i{color:var(--primary);font-size:12px;}
.hero-panel{
  background:rgba(11,23,40,.68);border:1px solid var(--line);border-radius:var(--radius-l);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow-glass);padding:26px;
}
.hero-panel h3{font-size:1.05rem;margin-bottom:4px;}
.hero-panel p{font-size:13.5px;color:var(--muted);margin-bottom:18px;}
.mini-row{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 0;border-bottom:1px dashed rgba(255,255,255,.09);
}
.mini-row:last-of-type{border-bottom:0;}
.mini-row b{font-size:15px;}
.mini-row .tag{font-size:12px;padding:3px 10px;border-radius:999px;}

/* ============ 指标条 ============ */
.metrics{
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
  margin-top:-40px;position:relative;z-index:5;
}
.metric{
  background:rgba(11,23,40,.72);border:1px solid var(--line);border-radius:var(--radius-m);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  padding:22px 20px;box-shadow:var(--shadow-glass);transition:transform .25s ease,border-color .25s ease;
}
.metric:hover{transform:translateY(-4px);border-color:var(--line-primary);}
.metric b{display:block;font-size:1.85rem;color:var(--primary);line-height:1.1;}
.metric span{font-size:13.5px;color:var(--muted);}

/* ============ 通用卡片 ============ */
.glass{
  background:rgba(11,23,40,.62);border:1px solid var(--line);border-radius:var(--radius-m);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow-glass);
}
/* ============ 对比表 ============ */
.table-scroll{
  overflow-x:auto;border-radius:var(--radius-l);border:1px solid var(--line);
  background:rgba(9,19,33,.7);
  box-shadow:var(--shadow-glass);
}
table.compare{
  width:100%;min-width:920px;border-collapse:separate;border-spacing:0;font-size:14.5px;
}
table.compare th,table.compare td{
  padding:16px 18px;text-align:left;border-bottom:1px solid rgba(255,255,255,.06);
  vertical-align:middle;
}
table.compare thead th{
  position:sticky;top:0;z-index:3;
  background:rgba(8,18,32,.97);
  font-size:14px;letter-spacing:.04em;color:var(--text);
  border-bottom:1px solid var(--line-primary);
}
table.compare tbody th{
  font-weight:500;color:var(--muted);width:190px;background:rgba(7,15,27,.6);
  position:sticky;left:0;z-index:2;
}
table.compare tbody tr:hover td{background:rgba(53,224,208,.045);}
table.compare td{color:#D8E6F4;}
.col-hot{background:rgba(53,224,208,.07)!important;position:relative;}
thead th.col-hot{
  box-shadow:inset 0 3px 0 var(--primary);
}
.hot-title{display:flex;align-items:center;gap:8px;font-weight:700;color:var(--text);}
.hot-flag{
  font-size:11px;padding:2px 9px;border-radius:999px;color:#04121A;
  background:linear-gradient(120deg,var(--primary),var(--amber));font-weight:700;
}
.plan-name{font-weight:700;font-size:15.5px;color:var(--text);display:block;}
.plan-sub{font-size:12.5px;color:var(--muted);}
.ico-yes{color:var(--success);}
.ico-no{color:rgba(159,179,200,.5);}
.price-ask{color:var(--amber);font-weight:600;font-size:14px;}

/* ============ 徽章 ============ */
.tag{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;border-radius:8px;padding:4px 11px;border:1px solid transparent;}
.tag-cyan{background:rgba(53,224,208,.12);color:var(--primary);border-color:rgba(53,224,208,.28);}
.tag-amber{background:rgba(255,180,90,.12);color:var(--amber);border-color:rgba(255,180,90,.28);}
.tag-purple{background:rgba(124,92,255,.14);color:#B4A3FF;border-color:rgba(124,92,255,.3);}
.tag-green{background:rgba(61,220,151,.12);color:var(--success);border-color:rgba(61,220,151,.26);}
.tag-plain{background:rgba(255,255,255,.05);color:var(--muted);border-color:var(--line);}

/* ============ 推荐卡 ============ */
.rec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.rec-card{
  background:rgba(11,23,40,.62);border:1px solid var(--line);border-radius:var(--radius-l);
  overflow:hidden;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  display:flex;flex-direction:column;transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.rec-card:hover{transform:translateY(-6px);border-color:var(--line-primary);box-shadow:0 22px 60px rgba(53,224,208,.14);}
.rec-figure{position:relative;aspect-ratio:16/9;overflow:hidden;}
.rec-figure img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.rec-card:hover .rec-figure img{transform:scale(1.05);}
.rec-figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,11,20,.1),rgba(5,11,20,.82));
}
.rec-figure .fig-tag{position:absolute;left:16px;top:16px;z-index:2;}
.rec-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.rec-body h3{font-size:1.16rem;}
.rec-body p{color:var(--muted);font-size:14.2px;}
.rec-list li{display:flex;align-items:flex-start;gap:9px;font-size:14px;color:#D6E4F2;padding:5px 0;}
.rec-list i{color:var(--primary);font-size:12px;margin-top:6px;}
.rec-foot{margin-top:auto;padding-top:12px;display:flex;align-items:center;justify-content:space-between;gap:10px;}

/* ============ 权益 + 场景 ============ */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:28px;}
.panel{padding:28px;border-radius:var(--radius-l);}
.panel h3{margin-bottom:14px;font-size:1.22rem;}
.chip-wrap{display:flex;flex-wrap:wrap;gap:10px;margin-top:6px;}
.scene{border-left:2px solid var(--line-primary);padding:14px 0 14px 18px;margin-bottom:6px;}
.scene:last-child{margin-bottom:0;}
.scene b{display:block;font-size:15px;margin-bottom:4px;}
.scene span{color:var(--muted);font-size:14px;}

/* ============ 流程时间线 ============ */
.timeline{position:relative;display:grid;gap:18px;}
.timeline::before{
  content:"";position:absolute;left:23px;top:12px;bottom:12px;width:2px;
  background:linear-gradient(180deg,var(--primary),rgba(124,92,255,.5),transparent);
}
.step{
  position:relative;display:flex;gap:18px;padding:20px 22px;
  background:rgba(11,23,40,.6);border:1px solid var(--line);border-radius:var(--radius-m);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:transform .25s ease,border-color .25s ease;
}
.step:hover{transform:translateX(6px);border-color:var(--line-primary);}
.step-no{
  flex:0 0 48px;height:48px;border-radius:14px;display:grid;place-items:center;
  font-weight:700;font-size:16px;color:#04121A;
  background:linear-gradient(135deg,var(--primary),#63d8ff);
  box-shadow:0 0 20px rgba(53,224,208,.3);
}
.step-body h3{font-size:1.06rem;margin-bottom:4px;}
.step-body p{color:var(--muted);font-size:14.2px;}

/* ============ FAQ ============ */
.accordion-item{
  background:rgba(11,23,40,.6);border:1px solid var(--line)!important;border-radius:var(--radius-m)!important;
  margin-bottom:14px;overflow:hidden;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.accordion-button{
  background:transparent;color:var(--text);font-weight:600;font-size:15.5px;
  padding:20px 22px;box-shadow:none!important;
}
.accordion-button:not(.collapsed){color:var(--primary);background:rgba(53,224,208,.06);}
.accordion-button::after{
  background-image:none;content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  width:26px;height:26px;display:grid;place-items:center;font-size:12px;
  border:1px solid var(--line-primary);border-radius:8px;color:var(--primary);
  transition:transform .26s ease;
}
.accordion-button:not(.collapsed)::after{transform:rotate(45deg);}
.accordion-body{color:var(--muted);font-size:14.6px;padding:0 22px 22px;line-height:1.8;}

/* ============ 表单 ============ */
.consult-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:34px;align-items:start;}
.trust-list li{display:flex;gap:10px;align-items:flex-start;font-size:14.4px;color:#D6E4F2;padding:7px 0;}
.trust-list i{color:var(--primary);margin-top:6px;font-size:12px;}
.form-card{padding:28px;border-radius:var(--radius-l);}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13.5px;color:var(--muted);margin-bottom:7px;}
.field input,.field select,.field textarea{
  width:100%;padding:12px 15px;border-radius:var(--radius-s);
  background:rgba(5,12,22,.7);border:1px solid var(--line);color:var(--text);
  transition:border-color .22s ease,box-shadow .22s ease,background .22s ease;
}
.field input::placeholder,.field textarea::placeholder{color:rgba(159,179,200,.6);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);background:rgba(5,18,30,.9);
  box-shadow:0 0 0 3px rgba(53,224,208,.14),0 0 22px rgba(53,224,208,.2);
}
.field textarea{min-height:110px;resize:vertical;}
.check{display:flex;gap:10px;align-items:flex-start;font-size:13.4px;color:var(--muted);}
.check input{width:17px;height:17px;margin-top:4px;accent-color:#35E0D0;}

/* ============ CTA 区块 ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-l);
  border:1px solid var(--line-primary);
  background-image:linear-gradient(100deg,rgba(5,11,20,.94),rgba(11,23,40,.8)),url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
  padding:56px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:34px;flex-wrap:wrap;
  box-shadow:var(--shadow-glass);
}
.cta-band h2{font-size:clamp(1.4rem,2.4vw,2rem);margin-bottom:10px;}
.cta-band p{color:var(--muted);max-width:560px;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:var(--section);border-top:1px solid var(--line);
  background:rgba(6,13,24,.86);padding:64px 0 26px;
}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:34px;}
.foot-brand p{color:var(--muted);font-size:14px;margin-top:16px;max-width:340px;}
.foot-title{font-size:15px;margin-bottom:16px;}
.foot-links li,.foot-contact li{margin-bottom:10px;font-size:14px;color:var(--muted);}
.foot-links a{color:var(--muted);}
.foot-links a:hover{color:var(--primary);}
.foot-contact i{color:var(--primary);width:18px;}
.foot-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);
}

/* ============ 响应式 ============ */
@media (max-width:1399px){
  :root{--container:1200px;}
}
@media (max-width:1199px){
  .hero-inner{grid-template-columns:1fr;gap:34px;}
  .metrics{grid-template-columns:repeat(2,1fr);}
  .two-col{grid-template-columns:1fr;}
  .rec-grid{grid-template-columns:repeat(2,1fr);}
  .consult-grid{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:991px){
  :root{--section:64px;}
  .hero{padding:70px 0 60px;}
  .timeline::before{left:20px;}
  .step{padding:18px;}
  .step-no{flex:0 0 40px;height:40px;border-radius:12px;font-size:14px;}
}
@media (max-width:767px){
  :root{--section:56px;}
  .topbar-mid{display:none!important;}
  .metrics{grid-template-columns:1fr 1fr;gap:14px;margin-top:-26px;}
  .rec-grid{grid-template-columns:1fr;}
  .hero-cta .btn-main,.hero-cta .btn-ghost{width:100%;}
  .form-row{grid-template-columns:1fr;}
  .cta-band{padding:36px 24px;}
  .foot-grid{grid-template-columns:1fr;}
  .foot-bottom{flex-direction:column;gap:8px;}
  .brand-text small{display:none;}
}
@media (max-width:575px){
  .container{padding-left:16px;padding-right:16px;}
  .metrics{grid-template-columns:1fr;}
  .hero h1{font-size:1.85rem;}
  .accordion-button{font-size:14.6px;padding:16px 16px;}
  .accordion-body{padding:0 16px 18px;}
}

/* roulang page: category4 */
:root{
  --bg:#050B14;
  --bg-2:#07111F;
  --glass:rgba(11,23,40,.62);
  --panel:#0B1728;
  --primary:#35E0D0;
  --amber:#FFB45A;
  --purple:#7C5CFF;
  --success:#3DDC97;
  --text:#EAF4FF;
  --muted:#9FB3C8;
  --border:rgba(255,255,255,.08);
  --ring:rgba(53,224,208,.18);
  --radius-s:12px;
  --radius:18px;
  --radius-l:24px;
  --shadow:0 18px 60px rgba(0,0,0,.35);
  --glow:0 0 28px rgba(53,224,208,.35);
  --section:88px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background:
    radial-gradient(920px 520px at 10% -8%, rgba(53,224,208,.16), transparent 62%),
    radial-gradient(780px 460px at 94% 4%, rgba(124,92,255,.14), transparent 60%),
    radial-gradient(720px 520px at 50% 112%, rgba(255,180,90,.08), transparent 66%);
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  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;
  -webkit-mask-image:radial-gradient(1200px 700px at 50% 0%, #000 10%, transparent 78%);
  mask-image:radial-gradient(1200px 700px at 50% 0%, #000 10%, transparent 78%);
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .22s ease,opacity .22s ease}
a:hover{color:var(--primary)}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{font-weight:700;line-height:1.28;margin:0}
p{margin:0}
::selection{background:rgba(53,224,208,.28)}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px;border-radius:6px}

.container{max-width:1320px;padding-inline:20px;position:relative}
.section-space{padding-block:var(--section);position:relative}
main{position:relative;z-index:1}
.site-header,.topbar,.site-footer{position:relative;z-index:5}
.d-none{display:none!important}
.d-lg-flex{display:flex!important}
@media (max-width:991.98px){.d-lg-flex{display:none!important}}

/* 顶部信息条 */
.topbar{
  background:rgba(5,11,20,.92);
  border-bottom:1px solid var(--border);
  backdrop-filter:blur(12px);
  font-size:12.5px;
  color:var(--muted);
}
.topbar-inner{
  min-height:38px;
  display:flex;
  align-items:center;
  gap:18px;
  justify-content:space-between;
}
.topbar-domain{display:inline-flex;align-items:center;gap:8px;letter-spacing:.4px;color:#c9dcef}
.topbar-domain i{color:var(--primary)}
.topbar-tip{flex:1;text-align:center;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.topbar-cta{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--amber);font-weight:600;
  padding:4px 12px;border-radius:999px;
  border:1px solid rgba(255,180,90,.28);
  background:rgba(255,180,90,.08);
}
.topbar-cta:hover{color:#fff;background:rgba(255,180,90,.16)}

/* 主导航 */
.site-header{
  position:sticky;top:0;
  background:rgba(5,11,20,.78);
  backdrop-filter:blur(18px);
  border-bottom:1px solid var(--border);
  transition:box-shadow .28s ease,background .28s ease;
}
.site-header.is-scrolled{box-shadow:0 14px 40px rgba(0,0,0,.45);background:rgba(5,11,20,.94)}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:22px;min-height:74px;
}
.brand{display:inline-flex;align-items:center;gap:12px}
.brand-mark{
  width:42px;height:42px;border-radius:14px;
  display:grid;place-items:center;
  background:linear-gradient(145deg, rgba(53,224,208,.22), rgba(124,92,255,.2));
  border:1px solid var(--ring);
  color:var(--primary);
  box-shadow:0 0 22px rgba(53,224,208,.2);
  font-size:18px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text b{font-size:17px;letter-spacing:.4px}
.brand-text small{font-size:11.5px;color:var(--muted);letter-spacing:.6px}
.nav-links{align-items:center;gap:6px}
.nav-links a{
  position:relative;
  padding:9px 14px;border-radius:12px;
  font-size:14.5px;color:#c3d5e7;
  transition:color .22s ease,background .22s ease;
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.05)}
.nav-links a.active{color:#fff}
.nav-links a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--purple));
  box-shadow:0 0 12px rgba(53,224,208,.7);
}
.header-actions{display:flex;align-items:center;gap:10px}
.nav-toggler{
  width:44px;height:44px;border-radius:14px;
  border:1px solid var(--border);
  background:rgba(11,23,40,.7);
  color:var(--text);
  display:grid;place-items:center;
}
.nav-toggler:hover{border-color:var(--ring);color:var(--primary)}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  border-radius:999px;
  padding:12px 24px;
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .24s ease,background .24s ease,color .24s ease,border-color .24s ease;
}
.btn:active{transform:translateY(1px)}
.btn-primary-glow{
  background:linear-gradient(120deg,var(--primary),var(--purple));
  color:#04121a;
  box-shadow:var(--glow);
}
.btn-primary-glow:hover{color:#04121a;transform:translateY(-2px);box-shadow:0 0 38px rgba(53,224,208,.5)}
.btn-glass{
  background:rgba(11,23,40,.66);
  border-color:var(--ring);
  color:var(--text);
  backdrop-filter:blur(12px);
}
.btn-glass:hover{border-color:var(--primary);color:#fff;transform:translateY(-2px)}
.btn-ghost{background:transparent;border-color:var(--border);color:var(--muted)}
.btn-ghost:hover{color:#fff;border-color:var(--ring)}
.btn-amber{
  background:rgba(255,180,90,.14);
  border-color:rgba(255,180,90,.4);
  color:var(--amber);
}
.btn-amber:hover{background:rgba(255,180,90,.24);color:#fff;transform:translateY(-2px)}
.btn-block{width:100%}

/* 玻璃卡片 */
.glass-card{
  background:var(--glass);
  border:1px solid var(--border);
  border-radius:var(--radius-l);
  backdrop-filter:blur(16px);
  box-shadow:var(--shadow);
  transition:transform .26s ease,border-color .26s ease,box-shadow .26s ease;
}
.glass-card:hover{transform:translateY(-4px);border-color:var(--ring);box-shadow:0 22px 64px rgba(0,0,0,.42),0 0 26px rgba(53,224,208,.14)}

/* Hero */
.page-hero{
  position:relative;
  padding-block:76px 68px;
  background-image:linear-gradient(120deg, rgba(5,11,20,.92) 12%, rgba(5,11,20,.68) 58%, rgba(5,11,20,.86)), url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--border);
}
.crumb{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);margin-bottom:22px;
}
.crumb i{font-size:10px;color:rgba(159,179,200,.6)}
.crumb span{color:#cfe0f0}
.pill{
  display:inline-flex;align-items:center;gap:9px;
  padding:7px 16px;border-radius:999px;
  font-size:13px;color:var(--primary);
  background:rgba(53,224,208,.1);
  border:1px solid var(--ring);
  letter-spacing:.3px;
}
.page-hero h1{
  margin:18px 0 16px;
  font-size:clamp(2rem,4vw,3.4rem);
  letter-spacing:.4px;
}
.page-hero h1 em{
  font-style:normal;
  background:linear-gradient(100deg,var(--primary),var(--amber));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:17px;color:#c2d5e6;max-width:620px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.trust-badges{
  display:flex;flex-wrap:wrap;gap:12px 26px;
  margin-top:30px;padding-top:24px;border-top:1px dashed var(--border);
  font-size:13.5px;color:var(--muted);
}
.trust-badges li{display:inline-flex;align-items:center;gap:9px}
.trust-badges i{color:var(--success)}

.hero-panel{padding:26px;border-radius:var(--radius-l)}
.hero-panel h3{font-size:17px;margin-bottom:6px}
.hero-panel>.lead-note{font-size:13.5px;color:var(--muted);margin-bottom:20px}
.metric-row{display:flex;gap:14px;margin-bottom:22px}
.metric{
  flex:1;padding:14px 16px;border-radius:var(--radius);
  background:rgba(255,255,255,.03);
  border:1px solid var(--border);
  text-align:center;
}
.metric b{
  display:block;font-size:26px;line-height:1.1;
  font-variant-numeric:tabular-nums;
  color:var(--primary);
}
.metric span{font-size:12.5px;color:var(--muted)}
.overview-list li{
  display:flex;align-items:flex-start;gap:11px;
  padding:9px 0;font-size:14px;color:#c9dcef;
  border-bottom:1px solid rgba(255,255,255,.05);
}
.overview-list li:last-child{border-bottom:0}
.overview-list i{color:var(--primary);margin-top:5px;font-size:12px}
.mini-bar{margin-top:18px}
.mini-bar span{display:flex;justify-content:space-between;font-size:12.5px;color:var(--muted);margin-bottom:8px}
.bar-track{height:8px;border-radius:999px;background:rgba(255,255,255,.07);overflow:hidden}
.bar-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,var(--primary),var(--amber))}

/* 板块标题 */
.section-head{max-width:780px;margin-bottom:44px}
.eyebrow{
  display:inline-block;font-size:12.5px;letter-spacing:2px;
  color:var(--primary);text-transform:uppercase;margin-bottom:12px;
}
.section-head h2{font-size:clamp(1.5rem,2.6vw,2.3rem);margin-bottom:14px}
.section-head p{color:var(--muted);font-size:15.5px}
.section-head.center{margin-inline:auto;text-align:center}

/* 时间线 */
.step-timeline{position:relative;padding-left:0}
.step-timeline::before{
  content:"";position:absolute;left:31px;top:16px;bottom:36px;width:2px;
  background:linear-gradient(180deg,rgba(53,224,208,.6),rgba(124,92,255,.3),transparent);
}
.step-item{position:relative;display:flex;gap:24px;padding-bottom:24px}
.step-num{
  flex:0 0 64px;width:64px;height:64px;border-radius:20px;
  display:grid;place-items:center;
  font-size:18px;font-weight:700;font-variant-numeric:tabular-nums;
  color:var(--primary);
  background:linear-gradient(145deg,rgba(53,224,208,.18),rgba(124,92,255,.16));
  border:1px solid var(--ring);
  box-shadow:0 0 24px rgba(53,224,208,.16);
  position:relative;z-index:1;
}
.step-body{
  flex:1;padding:22px 24px;border-radius:var(--radius);
  background:var(--glass);border:1px solid var(--border);
  backdrop-filter:blur(14px);
  transition:border-color .24s ease,transform .24s ease;
}
.step-body:hover{border-color:var(--ring);transform:translateY(-3px)}
.step-body h3{font-size:18px;margin-bottom:8px}
.step-body p{font-size:14.5px;color:var(--muted)}
.step-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:14px}
.tag{
  font-size:12px;padding:4px 12px;border-radius:999px;
  background:rgba(53,224,208,.1);border:1px solid var(--ring);color:var(--primary);
}
.tag.amber{background:rgba(255,180,90,.1);border-color:rgba(255,180,90,.3);color:var(--amber)}
.tag.purple{background:rgba(124,92,255,.12);border-color:rgba(124,92,255,.32);color:#b9a8ff}

/* 截图与清单 */
.shot-wrap{
  border-radius:var(--radius-l);overflow:hidden;border:1px solid var(--border);
  box-shadow:var(--shadow);position:relative;
}
.shot-wrap img{width:100%;aspect-ratio:16/10;object-fit:cover}
.shot-wrap::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 45%,rgba(5,11,20,.72));
  pointer-events:none;
}
.shot-caption{
  position:absolute;left:20px;right:20px;bottom:18px;
  font-size:13.5px;color:#d7e6f4;z-index:2;
}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:12px 0;font-size:14.5px;color:#c9dcef;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.check-list li:last-child{border-bottom:0}
.check-list i{color:var(--success);margin-top:5px;font-size:13px}
.note-card{
  margin-top:22px;padding:18px 20px;border-radius:var(--radius);
  background:rgba(255,180,90,.08);
  border:1px solid rgba(255,180,90,.26);
  font-size:14px;color:#f0dcbd;
}
.note-card i{color:var(--amber);margin-right:8px}

/* 注意事项卡片 */
.alert-card{
  padding:26px 24px;border-radius:var(--radius-l);
  background:var(--glass);border:1px solid var(--border);
  backdrop-filter:blur(14px);height:100%;
  transition:transform .26s ease,border-color .26s ease;
}
.alert-card:hover{transform:translateY(-4px);border-color:var(--ring)}
.alert-icon{
  width:46px;height:46px;border-radius:16px;display:grid;place-items:center;
  margin-bottom:16px;font-size:17px;
  background:rgba(124,92,255,.14);color:#b9a8ff;border:1px solid rgba(124,92,255,.3);
}
.alert-card.tone-amber .alert-icon{background:rgba(255,180,90,.14);color:var(--amber);border-color:rgba(255,180,90,.32)}
.alert-card.tone-cyan .alert-icon{background:rgba(53,224,208,.14);color:var(--primary);border-color:var(--ring)}
.alert-card.tone-green .alert-icon{background:rgba(61,220,151,.14);color:var(--success);border-color:rgba(61,220,151,.3)}
.alert-card h3{font-size:17px;margin-bottom:8px}
.alert-card p{font-size:14.5px;color:var(--muted)}

/* 速查 */
.lookup{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.lookup-item{
  display:flex;gap:16px;padding:18px 20px;border-radius:var(--radius);
  background:rgba(255,255,255,.028);border:1px solid var(--border);
}
.lookup-item span{
  flex:0 0 44px;height:44px;border-radius:14px;display:grid;place-items:center;
  background:rgba(53,224,208,.1);color:var(--primary);border:1px solid var(--ring);
}
.lookup-item h4{font-size:15.5px;margin-bottom:5px}
.lookup-item p{font-size:13.8px;color:var(--muted)}

/* FAQ */
.faq-accordion .accordion-item{
  background:var(--glass);
  border:1px solid var(--border);
  border-radius:var(--radius);
  margin-bottom:14px;
  overflow:hidden;
  backdrop-filter:blur(16px);
}
.faq-accordion .accordion-button{
  background:transparent;
  color:var(--text);
  font-weight:600;
  font-size:16px;
  padding:20px 22px;
  box-shadow:none;
  gap:16px;
}
.faq-accordion .accordion-button:not(.collapsed){
  color:var(--primary);
  background:rgba(53,224,208,.06);
}
.faq-accordion .accordion-button::after{
  background-image:none;
  content:"\f067";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  font-size:12px;
  width:30px;height:30px;flex:0 0 30px;
  display:grid;place-items:center;
  border-radius:50%;
  background:rgba(53,224,208,.12);
  color:var(--primary);
  transition:transform .24s ease,background .24s ease,color .24s ease;
}
.faq-accordion .accordion-button:not(.collapsed)::after{
  transform:rotate(45deg);
  background:var(--primary);
  color:#04121a;
}
.faq-accordion .accordion-button:focus{box-shadow:none;border-color:var(--ring)}
.faq-accordion .accordion-body{
  padding:6px 22px 22px;
  color:var(--muted);
  font-size:14.5px;
}

/* 咨询 */
.consult-wrap{
  padding:44px;border-radius:28px;
  background:linear-gradient(150deg,rgba(11,23,40,.86),rgba(7,17,31,.9));
  border:1px solid var(--border);
  box-shadow:var(--shadow);
  position:relative;overflow:hidden;
}
.consult-wrap::before{
  content:"";position:absolute;width:420px;height:420px;border-radius:50%;
  right:-140px;top:-160px;
  background:radial-gradient(circle,rgba(53,224,208,.18),transparent 66%);
  pointer-events:none;
}
.trust-stack li{
  display:flex;gap:13px;align-items:flex-start;
  padding:13px 0;font-size:14.5px;color:#c9dcef;
}
.trust-stack i{color:var(--primary);margin-top:5px;font-size:13px}
.form-field{margin-bottom:18px}
.form-field label{
  display:block;font-size:13.5px;color:#c3d5e7;margin-bottom:8px;font-weight:500;
}
.form-field .req{color:var(--amber)}
.form-control,.form-select{
  width:100%;
  background:rgba(5,11,20,.72);
  border:1px solid var(--border);
  border-radius:14px;
  padding:13px 16px;
  font-size:14.5px;
  color:var(--text);
  transition:border-color .22s ease,box-shadow .22s ease,background .22s ease;
}
.form-control::placeholder{color:rgba(159,179,200,.6)}
.form-control:focus,.form-select:focus{
  outline:none;
  border-color:var(--primary);
  box-shadow:0 0 0 4px rgba(53,224,208,.16);
  background:rgba(5,11,20,.9);
  color:var(--text);
}
.form-select option{background:#0B1728;color:var(--text)}
.checkbox-row{display:flex;align-items:flex-start;gap:11px;font-size:13.5px;color:var(--muted)}
.checkbox-row input{width:17px;height:17px;margin-top:4px;accent-color:#35E0D0}
.form-hint{
  margin-top:14px;font-size:13.5px;color:var(--success);
  display:none;
}
.form-hint.show{display:block}

/* 页脚 */
.site-footer{
  margin-top:20px;
  border-top:1px solid var(--border);
  background:rgba(5,11,20,.9);
  backdrop-filter:blur(14px);
  padding-block:64px 28px;
}
.foot-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:38px;
}
.foot-brand p{margin-top:18px;font-size:14px;color:var(--muted);max-width:360px}
.foot-title{font-size:15px;margin-bottom:18px;color:#fff}
.foot-links li,.foot-contact li{margin-bottom:11px;font-size:14px;color:var(--muted)}
.foot-links a:hover{color:var(--primary)}
.foot-contact i{color:var(--primary);margin-right:9px;font-size:13px}
.foot-bottom{
  margin-top:44px;padding-top:22px;
  border-top:1px solid var(--border);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(159,179,200,.8);
}

/* 移动端导航 */
.offcanvas.offcanvas-end{
  background:#07111F;
  border-left:1px solid var(--border);
  color:var(--text);
  width:min(320px,86vw);
}
.offcanvas-header{border-bottom:1px solid var(--border)}
.offcanvas-body{padding:20px}
.mobile-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 16px;border-radius:14px;
  border:1px solid var(--border);
  margin-bottom:11px;font-size:15px;color:#cfe0f0;
  background:rgba(11,23,40,.6);
}
.mobile-nav a.active,.mobile-nav a:hover{border-color:var(--ring);color:#fff}

@media (max-width:1399.98px){
  :root{--section:80px}
}
@media (max-width:1199.98px){
  .foot-grid{grid-template-columns:1.4fr 1fr 1fr;gap:30px}
}
@media (max-width:991.98px){
  :root{--section:68px}
  .header-inner{min-height:66px}
  .lookup{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  .consult-wrap{padding:30px}
  .page-hero{padding-block:56px 50px}
}
@media (max-width:767.98px){
  :root{--section:56px}
  .hero-cta .btn{width:100%}
  .step-timeline::before{left:23px}
  .step-item{gap:16px}
  .step-num{flex:0 0 48px;width:48px;height:48px;border-radius:16px;font-size:15px}
  .step-body{padding:18px}
  .metric-row{flex-direction:column}
  .foot-grid{grid-template-columns:1fr;gap:26px}
  .foot-bottom{flex-direction:column;gap:8px}
  .topbar-tip{display:none}
}
@media (max-width:575.98px){
  .page-hero h1{font-size:1.85rem}
  .hero-sub{font-size:15.5px}
  .glass-card{border-radius:var(--radius)}
  .consult-wrap{padding:22px}
}

/* roulang page: category5 */
:root{
  --bg:#050B14;
  --bg-2:#07111F;
  --panel:rgba(11,23,40,.62);
  --panel-solid:#0B1728;
  --cyan:#35E0D0;
  --amber:#FFB45A;
  --purple:#7C5CFF;
  --ok:#3DDC97;
  --text:#EAF4FF;
  --muted:#9FB3C8;
  --border:rgba(255,255,255,.08);
  --border-cyan:rgba(53,224,208,.18);
  --r-sm:12px;
  --r-md:18px;
  --r-lg:24px;
  --shadow:0 18px 60px rgba(0,0,0,.35);
  --glow:0 0 28px rgba(53,224,208,.35);
  --space:88px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(680px 420px at 12% -6%,rgba(53,224,208,.14),transparent 62%),
    radial-gradient(560px 380px at 92% 8%,rgba(124,92,255,.13),transparent 66%),
    radial-gradient(700px 460px at 50% 108%,rgba(53,224,208,.08),transparent 70%),
    linear-gradient(180deg,#050B14 0%,#07111F 55%,#050B14 100%);
  pointer-events:none;
  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;
  pointer-events:none;
  z-index:-1;
  mask-image:radial-gradient(circle at 50% 20%,rgba(0,0,0,.9),transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 20%,rgba(0,0,0,.9),transparent 78%);
}
a{color:var(--cyan);text-decoration:none;transition:color .22s ease,opacity .22s ease}
a:hover{color:#7df3e8}
img{max-width:100%;height:auto;display:block}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;letter-spacing:.2px}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px;border-radius:6px}
.container{max-width:1320px;padding-left:20px;padding-right:20px}
.section{padding:var(--space) 0}
.section-tight{padding:56px 0}
.section-head{max-width:760px;margin-bottom:44px}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:1.6px;text-transform:uppercase;
  color:var(--cyan);background:rgba(53,224,208,.08);
  border:1px solid var(--border-cyan);border-radius:999px;
  padding:6px 14px;margin-bottom:16px;
}
.section-head h2{font-size:clamp(1.5rem,2.6vw,2.3rem);margin-bottom:14px}
.section-head p{color:var(--muted);font-size:15.5px}
.text-cyan{color:var(--cyan)}
.text-amber{color:var(--amber)}
.tabnum{font-variant-numeric:tabular-nums}

/* 顶部信息条 */
.topbar{
  background:rgba(6,14,26,.78);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
  font-size:12.5px;
  color:var(--muted);
}
.topbar-inner{
  height:38px;display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.topbar-domain{display:inline-flex;align-items:center;gap:8px;color:var(--muted);letter-spacing:.4px}
.topbar-domain i{color:var(--cyan)}
.topbar-tip{display:inline-flex;align-items:center;gap:8px;color:var(--muted)}
.topbar-tip::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--ok);box-shadow:0 0 10px var(--ok)}
.topbar-cta{color:var(--cyan);font-weight:600;white-space:nowrap}
.topbar-cta:hover{color:#7df3e8}

/* 主导航 */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:rgba(5,11,20,.72);
  backdrop-filter:blur(18px);
  border-bottom:1px solid var(--border);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.scrolled{box-shadow:0 14px 40px rgba(0,0,0,.5);background:rgba(5,11,20,.9)}
.header-inner{height:74px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:inline-flex;align-items:center;gap:12px}
.brand-mark{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(53,224,208,.22),rgba(124,92,255,.28));
  border:1px solid var(--border-cyan);color:var(--cyan);font-size:17px;
  box-shadow:0 0 22px rgba(53,224,208,.22);
}
.brand-text b{display:block;color:#fff;font-size:17px;letter-spacing:.4px}
.brand-text small{display:block;color:var(--muted);font-size:11.5px;letter-spacing:1px}
.nav-links{align-items:center;gap:6px}
.nav-links a{
  position:relative;
  color:var(--muted);font-size:14.5px;font-weight:500;
  padding:9px 13px;border-radius:10px;white-space:nowrap;
}
.nav-links a:hover{color:#fff;background:rgba(53,224,208,.08)}
.nav-links a.active{color:#fff;background:rgba(53,224,208,.12)}
.nav-links a.active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:3px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--cyan),var(--purple));box-shadow:0 0 12px rgba(53,224,208,.7);
}
.header-actions{display:flex;align-items:center;gap:12px}
.btn-glow{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 20px;border-radius:999px;border:0;
  font-size:14px;font-weight:600;color:#04141a;
  background:linear-gradient(135deg,var(--cyan),#7cf0e6 55%,var(--purple));
  box-shadow:var(--glow);transition:transform .22s ease,box-shadow .22s ease,filter .22s ease;
}
.btn-glow:hover{color:#04141a;transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 0 34px rgba(53,224,208,.5)}
.btn-glow:active{transform:translateY(1px)}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 20px;border-radius:999px;
  border:1px solid var(--border-cyan);background:rgba(11,23,40,.55);
  color:var(--text);font-size:14px;font-weight:600;transition:all .22s ease;
}
.btn-ghost:hover{color:#fff;border-color:rgba(53,224,208,.5);background:rgba(53,224,208,.1);transform:translateY(-2px)}
.btn-line{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 18px;border-radius:999px;border:1px solid var(--border);
  background:transparent;color:var(--muted);font-size:14px;transition:all .22s ease;
}
.btn-line:hover{color:#fff;border-color:var(--border-cyan)}
.nav-toggle{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:rgba(11,23,40,.7);border:1px solid var(--border-cyan);color:var(--cyan);font-size:16px;
}
.offcanvas{background:#07111F;color:var(--text);border-right:1px solid var(--border)}
.offcanvas-header{border-bottom:1px solid var(--border)}
.offcanvas-title{font-size:16px;color:#fff}
.offcanvas .m-nav{display:flex;flex-direction:column;gap:6px;padding:18px 0}
.offcanvas .m-nav a{
  color:var(--muted);padding:12px 14px;border-radius:12px;font-size:15px;
  border:1px solid transparent;
}
.offcanvas .m-nav a:hover,.offcanvas .m-nav a.active{
  color:#fff;background:rgba(53,224,208,.1);border-color:var(--border-cyan);
}
.btn-close{filter:invert(1) grayscale(1) brightness(2)}

/* Hero */
.hero{
  position:relative;
  padding:96px 0 80px;
  background-image:linear-gradient(120deg,rgba(5,11,20,.94) 0%,rgba(5,11,20,.78) 52%,rgba(5,11,20,.92) 100%),url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--border);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(520px 320px at 78% 22%,rgba(53,224,208,.18),transparent 68%),
             radial-gradient(420px 280px at 14% 84%,rgba(124,92,255,.16),transparent 70%);
}
.hero .container{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.hero-badge{
  display:inline-flex;align-items:center;gap:9px;
  padding:7px 15px;border-radius:999px;font-size:13px;color:var(--cyan);
  background:rgba(53,224,208,.09);border:1px solid var(--border-cyan);margin-bottom:22px;
}
.hero h1{
  font-size:clamp(2rem,4vw,3.4rem);
  margin-bottom:20px;
  background:linear-gradient(120deg,#fff 24%,#bdf7f1 62%,#9fe9ff 100%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.hero .sub{font-size:17px;color:var(--muted);max-width:560px;margin-bottom:30px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-cloud{display:flex;flex-wrap:wrap;gap:10px}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 13px;border-radius:999px;font-size:12.5px;color:var(--muted);
  background:rgba(11,23,40,.6);border:1px solid var(--border);
}
.chip i{color:var(--cyan);font-size:11px}
.hero-panel{
  background:var(--panel);backdrop-filter:blur(16px);
  border:1px solid var(--border);border-radius:var(--r-lg);
  box-shadow:var(--shadow);padding:26px;
}
.hero-panel .panel-title{
  display:flex;align-items:center;justify-content:space-between;
  font-size:14px;color:var(--muted);margin-bottom:18px;
}
.hero-panel .panel-title b{color:#fff;font-size:15px}
.anchor-list{display:flex;flex-direction:column;gap:8px}
.anchor-list a{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:13px 15px;border-radius:14px;color:var(--text);font-size:14.5px;
  background:rgba(7,17,31,.7);border:1px solid var(--border);transition:all .22s ease;
}
.anchor-list a span{display:inline-flex;align-items:center;gap:10px}
.anchor-list a i{color:var(--cyan);font-size:13px}
.anchor-list a em{font-style:normal;font-size:12px;color:var(--muted)}
.anchor-list a:hover{border-color:rgba(53,224,208,.45);transform:translateX(3px);background:rgba(53,224,208,.08)}
.panel-foot{
  margin-top:18px;padding-top:16px;border-top:1px dashed var(--border);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:12.5px;color:var(--muted);
}

/* 帮助指标条 */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.metric{
  background:var(--panel);backdrop-filter:blur(14px);
  border:1px solid var(--border);border-radius:var(--r-md);
  padding:22px;transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.metric:hover{transform:translateY(-4px);border-color:rgba(53,224,208,.4);box-shadow:var(--shadow)}
.metric b{display:block;font-size:28px;color:#fff;line-height:1.2}
.metric span{display:block;font-size:13px;color:var(--muted);margin-top:6px}
.metric i{color:var(--cyan);font-size:16px;margin-bottom:12px;display:block}

/* 问答主区 */
.faq-layout{display:grid;grid-template-columns:288px 1fr;gap:36px;align-items:start}
.side-nav{
  position:sticky;top:104px;
  background:var(--panel);backdrop-filter:blur(16px);
  border:1px solid var(--border);border-radius:var(--r-lg);
  padding:22px;box-shadow:var(--shadow);
}
.side-nav h3{font-size:15px;margin-bottom:6px}
.side-nav p{font-size:13px;color:var(--muted);margin-bottom:16px}
.side-nav ul{display:flex;flex-direction:column;gap:6px}
.side-nav ul a{
  display:flex;align-items:center;gap:10px;
  padding:11px 13px;border-radius:12px;font-size:14px;color:var(--muted);
  border:1px solid transparent;transition:all .2s ease;
}
.side-nav ul a i{color:var(--cyan);font-size:12px;width:14px}
.side-nav ul a:hover{color:#fff;background:rgba(53,224,208,.09);border-color:var(--border-cyan)}
.side-nav .side-help{margin-top:18px;padding-top:16px;border-top:1px dashed var(--border);font-size:12.5px;color:var(--muted)}
.side-nav .side-help a{display:inline-flex;align-items:center;gap:6px;margin-top:10px;font-weight:600}

.faq-group{margin-bottom:40px;scroll-margin-top:110px}
.faq-group:last-child{margin-bottom:0}
.group-head{display:flex;align-items:center;gap:14px;margin-bottom:20px}
.group-head .num{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  font-size:14px;font-weight:700;color:var(--cyan);
  background:rgba(53,224,208,.1);border:1px solid var(--border-cyan);
}
.group-head h2{font-size:clamp(1.25rem,2vw,1.6rem)}
.group-head p{font-size:13.5px;color:var(--muted);margin-top:3px}

.accordion-item{
  background:var(--panel);backdrop-filter:blur(14px);
  border:1px solid var(--border);border-radius:var(--r-md) !important;
  margin-bottom:14px;overflow:hidden;transition:border-color .24s ease,box-shadow .24s ease;
}
.accordion-item:hover{border-color:rgba(53,224,208,.32)}
.accordion-button{
  background:transparent;color:var(--text);font-weight:600;font-size:15.5px;
  padding:20px 22px;box-shadow:none !important;gap:14px;
}
.accordion-button:not(.collapsed){color:var(--cyan);background:rgba(53,224,208,.06)}
.accordion-button::after{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--border-cyan);background-color:rgba(53,224,208,.08);
  background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M8 3v10M3 8h10' stroke='%2335E0D0' stroke-width='1.6' stroke-linecap='round'/%3E%3C/svg%3E");
  background-size:14px 14px;background-position:center;background-repeat:no-repeat;
  transition:transform .26s ease,border-color .26s ease;
}
.accordion-button:not(.collapsed)::after{transform:rotate(135deg);border-color:rgba(255,180,90,.5)}
.accordion-body{padding:2px 22px 22px;color:var(--muted);font-size:14.6px;line-height:1.85}
.accordion-body strong{color:#fff}
.accordion-body .tips{
  margin-top:14px;padding:12px 14px;border-radius:12px;font-size:13.5px;
  background:rgba(255,180,90,.08);border:1px solid rgba(255,180,90,.25);color:#ffd9a6;
}

/* 图文双栏 */
.split{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.split img{border-radius:var(--r-lg);border:1px solid var(--border);box-shadow:var(--shadow)}
.flow-list{display:flex;flex-direction:column;gap:16px;margin-top:26px}
.flow-item{
  display:flex;gap:14px;padding:16px 18px;border-radius:var(--r-md);
  background:var(--panel);border:1px solid var(--border);transition:all .22s ease;
}
.flow-item:hover{transform:translateX(4px);border-color:rgba(53,224,208,.42)}
.flow-item .idx{
  width:30px;height:30px;flex-shrink:0;border-radius:9px;display:grid;place-items:center;
  font-size:13px;font-weight:700;color:#04141a;background:linear-gradient(135deg,var(--cyan),var(--purple));
}
.flow-item h4{font-size:15px;margin-bottom:4px}
.flow-item p{font-size:13.5px;color:var(--muted)}

/* 表单 */
.consult-wrap{
  display:grid;grid-template-columns:.95fr 1.05fr;gap:40px;
  background:var(--panel);backdrop-filter:blur(16px);
  border:1px solid var(--border);border-radius:var(--r-lg);
  box-shadow:var(--shadow);padding:40px;
}
.consult-info h2{font-size:clamp(1.4rem,2.4vw,2rem);margin-bottom:14px}
.consult-info p{color:var(--muted);font-size:15px}
.trust-list{display:flex;flex-direction:column;gap:12px;margin-top:24px}
.trust-list li{display:flex;align-items:flex-start;gap:11px;font-size:14px;color:var(--muted)}
.trust-list i{color:var(--cyan);margin-top:5px;font-size:12px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1 / -1}
.field label{font-size:13.5px;color:var(--muted)}
.field label .req{color:var(--amber)}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border-radius:var(--r-sm);
  background:rgba(7,17,31,.85);border:1px solid var(--border);
  color:var(--text);font-size:14.5px;font-family:inherit;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field textarea{resize:vertical;min-height:104px}
.field select option{background:#07111F;color:var(--text)}
.field input::placeholder,.field textarea::placeholder{color:#6c7f95}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:rgba(53,224,208,.6);
  box-shadow:0 0 0 4px rgba(53,224,208,.14);background:rgba(7,17,31,1);
}
.agree{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--muted);grid-column:1 / -1}
.agree input{width:16px;height:16px;margin-top:4px;accent-color:#35E0D0}
.form-actions{grid-column:1 / -1;display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:4px}
.form-actions .btn-glow{padding:12px 30px}
.form-note{font-size:12.5px;color:var(--muted)}

/* CTA 区 */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--r-lg);border:1px solid var(--border-cyan);
  background-image:linear-gradient(115deg,rgba(5,11,20,.92),rgba(7,17,31,.72)),url("/assets/images/backpic/back-3.png");
  background-size:cover;background-position:center;
  padding:56px 48px;box-shadow:var(--shadow);
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(420px 240px at 84% 18%,rgba(124,92,255,.24),transparent 70%);
  pointer-events:none;
}
.cta-band .inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-band h2{font-size:clamp(1.4rem,2.4vw,2rem);margin-bottom:10px}
.cta-band p{color:var(--muted);font-size:15px;max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* 页脚 */
.site-footer{border-top:1px solid var(--border);background:rgba(5,11,20,.86);margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding:64px 0 40px}
.foot-brand .brand{margin-bottom:16px}
.foot-brand p{font-size:13.6px;color:var(--muted);max-width:340px}
.foot-title{font-size:14.5px;color:#fff;margin-bottom:16px}
.foot-links,.foot-contact{display:flex;flex-direction:column;gap:10px}
.foot-links a{color:var(--muted);font-size:14px}
.foot-links a:hover{color:var(--cyan)}
.foot-contact li{display:flex;gap:10px;font-size:13.6px;color:var(--muted);align-items:flex-start}
.foot-contact i{color:var(--cyan);margin-top:5px;font-size:12px}
.foot-bottom{
  border-top:1px solid var(--border);padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:12.8px;color:var(--muted);
}

@media (max-width:1200px){
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .faq-layout{grid-template-columns:1fr}
  .side-nav{position:static}
  .side-nav ul{flex-direction:row;flex-wrap:wrap}
  .side-nav ul li{flex:1 1 calc(50% - 6px)}
  .foot-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:992px){
  :root{--space:64px}
  .hero{padding:72px 0 60px}
  .split{grid-template-columns:1fr;gap:30px}
  .consult-wrap{grid-template-columns:1fr;padding:30px}
  .cta-band{padding:44px 30px}
  .topbar-tip{display:none}
}
@media (max-width:768px){
  :root{--space:56px}
  .header-inner{height:66px}
  .brand-text small{display:none}
  .hero{padding:60px 0 52px}
  .hero .sub{font-size:16px}
  .hero-cta .btn-glow,.hero-cta .btn-ghost{width:100%;justify-content:center}
  .metrics{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .side-nav ul li{flex:1 1 100%}
  .foot-grid{grid-template-columns:1fr;padding:48px 0 32px}
  .group-head{align-items:flex-start}
}
@media (max-width:520px){
  .container{padding-left:16px;padding-right:16px}
  .topbar-inner{height:36px}
  .topbar-domain{font-size:12px}
  .accordion-button{font-size:14.6px;padding:17px 16px}
  .accordion-body{padding:2px 16px 18px}
  .consult-wrap{padding:22px}
}