/* roulang page: index */
:root{
  --ink-900:#05121B;
  --ink-800:#0A1E2B;
  --surface:#0E2433;
  --surface-2:#13303F;
  --line:rgba(126,200,214,.16);
  --line-strong:rgba(46,230,200,.42);
  --glow:#2EE6C8;
  --glow-soft:rgba(46,230,200,.14);
  --glow-deep:#17B9A4;
  --amber:#FFB454;
  --amber-soft:rgba(255,180,84,.14);
  --text-1:#E8F4F8;
  --text-2:#9FB6C4;
  --text-3:#6E8898;
  --danger:#FF6B6B;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --ease:180ms cubic-bezier(.2,.7,.3,1);
  --shadow-card:0 12px 32px rgba(0,0,0,.38);
  --shadow-hover:0 20px 56px rgba(0,0,0,.5);
  --mono:"DIN Alternate","Inter",ui-monospace,SFMono-Regular,Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC",system-ui,-apple-system,"Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text-2);
  background-color:var(--ink-900);
  background-image:
    radial-gradient(900px 620px at 86% -8%, rgba(46,230,200,.09), transparent 70%),
    radial-gradient(760px 520px at 4% 22%, rgba(46,230,200,.05), transparent 72%),
    linear-gradient(rgba(126,200,214,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(126,200,214,.03) 1px, transparent 1px);
  background-size:auto,auto,48px 48px,48px 48px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--glow);text-decoration:none;transition:color var(--ease),background var(--ease),border-color var(--ease);}
a:hover{color:var(--text-1);}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--glow);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.container-wide{max-width:1320px;}

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;white-space:nowrap;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease),opacity var(--ease);
}
.btn-sm{height:38px;padding:0 18px;font-size:13.5px;}
.btn-block{width:100%;}
.btn-primary{
  background:linear-gradient(180deg,var(--glow),var(--glow-deep));
  color:#04222B;
  box-shadow:0 0 0 1px rgba(46,230,200,.35),0 10px 26px rgba(46,230,200,.22);
}
.btn-primary:hover{color:#04222B;filter:brightness(1.06);box-shadow:0 0 0 1px rgba(46,230,200,.5),0 14px 36px rgba(46,230,200,.34);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(46,230,200,.4),0 6px 16px rgba(46,230,200,.18);}
.btn-ghost{background:rgba(255,255,255,.03);border-color:var(--line);color:var(--text-1);}
.btn-ghost:hover{border-color:var(--line-strong);background:var(--glow-soft);color:var(--text-1);}
.btn-ghost:active{transform:translateY(1px);}
.btn-amber{
  background:linear-gradient(180deg,var(--amber),#E89434);
  color:#2A1705;
  box-shadow:0 0 0 1px rgba(255,180,84,.42),0 10px 26px rgba(255,180,84,.22);
}
.btn-amber:hover{color:#2A1705;filter:brightness(1.05);box-shadow:0 0 0 1px rgba(255,180,84,.6),0 14px 36px rgba(255,180,84,.32);}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;pointer-events:none;}
.btn .spinner{
  width:15px;height:15px;border-radius:50%;
  border:2px solid rgba(4,34,43,.28);border-top-color:#04222B;
  animation:spin .7s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg);}}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  font-size:12px;line-height:1.6;letter-spacing:.04em;
  border:1px solid var(--line);color:var(--text-2);
}
.badge-glow{border-color:var(--line-strong);color:var(--glow);background:var(--glow-soft);}
.badge-amber{border-color:rgba(255,180,84,.45);color:var(--amber);background:var(--amber-soft);}
.eyebrow{
  display:inline-block;font-size:12.5px;letter-spacing:.18em;
  color:var(--glow);margin-bottom:12px;
}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(5,18,27,.72);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  transition:background var(--ease),box-shadow var(--ease);
}
.site-header.scrolled{background:rgba(5,18,27,.95);box-shadow:0 12px 32px rgba(0,0,0,.45);}
.nav-wrap{display:flex;align-items:center;gap:24px;height:68px;}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(160deg,rgba(255,255,255,.09),rgba(255,255,255,.02));
  border:1px solid rgba(255,255,255,.13);
}
.brand-mark svg{width:20px;height:20px;stroke:var(--glow);stroke-width:1.5;fill:none;}
.brand-text{display:flex;flex-direction:column;line-height:1.16;}
.brand-text strong{font-size:18px;font-weight:700;color:var(--text-1);letter-spacing:.04em;}
.brand-text em{font-style:normal;font-size:11px;letter-spacing:.18em;color:var(--text-3);}
.nav-chips{display:flex;align-items:center;gap:8px;margin-right:auto;}
.chip{
  padding:8px 17px;border-radius:999px;font-size:14px;color:var(--text-2);
  border:1px solid transparent;white-space:nowrap;
  transition:background var(--ease),color var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.chip:hover{background:var(--glow-soft);color:var(--text-1);}
.chip.active{
  background:var(--glow);color:#04222B;font-weight:600;
  box-shadow:0 0 0 1px rgba(46,230,200,.35),0 10px 24px rgba(46,230,200,.22);
}
.chip.active:hover{color:#04222B;}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:11px;
  border:1px solid var(--line);background:rgba(255,255,255,.03);
  place-items:center;
}
.nav-toggle span{display:block;width:16px;height:1.5px;background:var(--text-1);position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:16px;height:1.5px;background:var(--text-1);
}
.nav-toggle span::before{top:-5px;}
.nav-toggle span::after{top:5px;}

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(3,10,16,.66);z-index:90;
  opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);
  backdrop-filter:blur(2px);
}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);z-index:100;
  background:var(--ink-800);border-left:1px solid var(--line);
  padding:26px 22px;display:flex;flex-direction:column;gap:22px;
  transform:translateX(102%);transition:transform 240ms cubic-bezier(.2,.7,.3,1);
  box-shadow:-20px 0 60px rgba(0,0,0,.5);
}
.drawer.open{transform:translateX(0);}
.drawer-close{
  align-self:flex-end;width:38px;height:38px;border-radius:11px;
  border:1px solid var(--line);color:var(--text-1);font-size:20px;line-height:1;
  display:grid;place-items:center;background:rgba(255,255,255,.03);
}
.drawer-nav{display:flex;flex-direction:column;gap:6px;}
.drawer-nav a{
  padding:12px 14px;border-radius:12px;color:var(--text-2);font-size:15px;
  border:1px solid transparent;
}
.drawer-nav a:hover{background:var(--glow-soft);color:var(--text-1);}
.drawer-nav a.active{background:var(--glow-soft);color:var(--glow);border-color:var(--line-strong);font-weight:600;}
.drawer-foot{margin-top:auto;font-size:12.5px;color:var(--text-3);line-height:1.8;}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:96px 0 88px;min-height:88vh;display:flex;align-items:center;}
.hero-bg{position:absolute;inset:0;z-index:0;}
.hero-bg img{width:100%;height:100%;object-fit:cover;}
.hero-overlay{
  position:absolute;inset:0;z-index:1;
  background:
    radial-gradient(700px 460px at 88% 8%, rgba(46,230,200,.16), transparent 68%),
    linear-gradient(180deg,rgba(5,18,27,.72),rgba(5,18,27,.95));
}
.hero::after{
  content:"";position:absolute;right:-140px;top:-60px;width:560px;height:560px;
  border-radius:50%;border:1px solid rgba(46,230,200,.12);z-index:1;pointer-events:none;
}
.hero::before{
  content:"";position:absolute;right:-40px;top:40px;width:400px;height:400px;
  border-radius:50%;border:1px solid rgba(46,230,200,.09);z-index:1;pointer-events:none;
}
.hero-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;
}
.hero-copy h1{
  font-size:clamp(2.25rem,4.4vw,3.5rem);
  line-height:1.22;letter-spacing:-.01em;font-weight:700;color:var(--text-1);
  margin-bottom:22px;
}
.hero-copy h1 .hl{
  display:block;
  background:linear-gradient(96deg,var(--glow),#9BE9DC 70%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{max-width:560px;font-size:16px;line-height:1.85;color:var(--text-2);margin-bottom:32px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:16px;margin-bottom:40px;}
.hero-metrics{display:flex;align-items:center;gap:26px;flex-wrap:wrap;}
.hero-metrics li{display:flex;flex-direction:column;gap:2px;padding-right:26px;border-right:1px solid var(--line);}
.hero-metrics li:last-child{padding-right:0;border-right:0;}
.hero-metrics b{
  font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:22px;font-weight:600;color:var(--text-1);letter-spacing:.02em;
}
.hero-metrics span{font-size:12.5px;color:var(--text-3);}

.glass{
  background:linear-gradient(160deg,rgba(255,255,255,.08),rgba(255,255,255,.02));
  border:1px solid rgba(255,255,255,.12);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-card);
}
.hero-card{position:relative;padding:30px 28px;overflow:hidden;}
.hero-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(46,230,200,.55),transparent);
}
.hero-card-title{font-size:13px;letter-spacing:.14em;color:var(--text-3);margin-bottom:18px;}
.hero-card-rows{display:flex;flex-direction:column;gap:16px;margin-bottom:22px;}
.hero-card-row{display:flex;align-items:baseline;justify-content:space-between;gap:16px;padding-bottom:14px;border-bottom:1px dashed rgba(126,200,214,.16);}
.hero-card-row:last-child{padding-bottom:0;border-bottom:0;}
.hero-card-row dt{font-size:13.5px;color:var(--text-2);}
.hero-card-row dd{
  margin:0;font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:19px;font-weight:600;color:var(--glow);letter-spacing:.02em;
}
.hero-card-foot{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:12.5px;color:var(--text-3);}

/* ---------- 信任条 ---------- */
.trust{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:rgba(10,30,43,.62);}
.trust-list{display:grid;grid-template-columns:repeat(4,1fr);}
.trust-list li{
  display:flex;align-items:center;gap:12px;padding:24px 26px;
  font-size:14px;color:var(--text-2);border-left:1px solid var(--line);
}
.trust-list li:first-child{border-left:0;}
.trust-list svg{width:24px;height:24px;flex-shrink:0;stroke:var(--glow);stroke-width:1.5;fill:none;}

/* ---------- 板块通用 ---------- */
.section{padding:96px 0;position:relative;}
.section-alt{background:var(--ink-800);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;}
.section-head h2{font-size:clamp(1.5rem,2.4vw,2.125rem);line-height:1.3;font-weight:700;color:var(--text-1);}
.section-head p{margin-top:12px;font-size:15px;color:var(--text-2);max-width:640px;}
.link-arrow{font-size:14px;color:var(--glow);display:inline-flex;align-items:center;gap:6px;white-space:nowrap;}
.link-arrow:hover{color:var(--text-1);gap:10px;}

/* ---------- 阶梯 ---------- */
.ladder-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:end;}
.ladder-card{
  position:relative;display:flex;flex-direction:column;
  padding:28px 26px;border-radius:var(--r-md);
  background:var(--surface);border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.ladder-card:nth-child(1){min-height:280px;}
.ladder-card:nth-child(2){min-height:320px;}
.ladder-card:nth-child(3){
  min-height:360px;
  border-color:rgba(255,180,84,.42);
  clip-path:polygon(0 0,calc(100% - 18px) 0,100% 18px,100% 100%,0 100%);
}
.ladder-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-hover);}
.ladder-card:not(:last-child)::before{
  content:"";position:absolute;left:100%;top:38px;width:24px;height:1px;
  background:var(--line);
}
.ladder-step{display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.ladder-num{
  font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:26px;font-weight:600;color:var(--glow);line-height:1;
}
.ladder-card:nth-child(3) .ladder-num{color:var(--amber);}
.ladder-label{font-size:12.5px;letter-spacing:.14em;color:var(--text-3);}
.ladder-card h3{font-size:18px;font-weight:600;color:var(--text-1);margin-bottom:16px;line-height:1.45;}
.ladder-list{display:flex;flex-direction:column;gap:11px;margin-bottom:20px;font-size:14px;line-height:1.7;color:var(--text-2);}
.ladder-list li{position:relative;padding-left:15px;}
.ladder-list li::before{
  content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:50%;
  background:var(--glow);box-shadow:0 0 8px rgba(46,230,200,.55);
}
.ladder-card:nth-child(3) .ladder-list li::before{background:var(--amber);box-shadow:0 0 8px rgba(255,180,84,.5);}
.ladder-note{margin-top:auto;font-size:12.5px;line-height:1.7;color:var(--text-3);margin-bottom:12px;}
.ladder-link{font-size:13.5px;font-weight:600;color:var(--glow);}
.ladder-link:hover{color:var(--text-1);}

/* ---------- 套餐对比 ---------- */
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:center;}
.plan-card{
  position:relative;display:flex;flex-direction:column;
  padding:32px 26px;border-radius:var(--r-md);
  background:linear-gradient(160deg,rgba(255,255,255,.08),rgba(255,255,255,.02));
  border:1px solid rgba(255,255,255,.12);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  clip-path:polygon(0 0,calc(100% - 18px) 0,100% 18px,100% 100%,0 100%);
  box-shadow:var(--shadow-card);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.plan-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong);}
.plan-card.featured{
  transform:scale(1.04);
  border-color:var(--line-strong);
  box-shadow:0 0 0 1px rgba(46,230,200,.35),0 10px 34px rgba(46,230,200,.18);
}
.plan-card.featured:hover{transform:scale(1.04) translateY(-4px);}
.plan-top-flag{
  position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,transparent,var(--glow),transparent);
}
.plan-flag{
  display:inline-flex;align-self:flex-start;margin-bottom:16px;
}
.plan-card h3{font-size:18px;font-weight:600;color:var(--text-1);margin-bottom:6px;}
.plan-desc{font-size:13px;color:var(--text-3);margin-bottom:20px;}
.plan-price{
  font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:32px;font-weight:600;color:var(--text-1);line-height:1.1;letter-spacing:.01em;
}
.plan-price small{font-family:"Noto Sans SC",sans-serif;font-size:12.5px;font-weight:400;color:var(--text-3);margin-left:6px;letter-spacing:0;}
.plan-hr{height:1px;background:var(--line);margin:22px 0;}
.plan-features{display:flex;flex-direction:column;gap:12px;font-size:14px;line-height:1.6;color:var(--text-2);margin-bottom:26px;}
.plan-features li{display:flex;align-items:flex-start;gap:9px;}
.plan-features .ok{color:var(--glow);font-weight:700;line-height:1.4;}
.plan-features .no{color:var(--text-3);font-weight:700;line-height:1.4;}
.plan-features li.off{color:var(--text-3);opacity:.7;}
.plan-card .btn{margin-top:auto;}

/* ---------- 限时条 ---------- */
.strip-wrap{padding:0 0 8px;}
.strip{
  display:flex;align-items:center;gap:28px;flex-wrap:wrap;
  padding:26px 32px;border-radius:999px;
  background:var(--amber-soft);
  background-image:radial-gradient(420px 200px at 0% 50%, rgba(255,180,84,.2), transparent 72%);
  border:1px solid rgba(255,180,84,.42);
  box-shadow:0 12px 32px rgba(0,0,0,.34);
}
.strip-text{flex:1;min-width:240px;}
.strip-text strong{display:block;font-size:17px;font-weight:600;color:var(--text-1);margin-bottom:4px;}
.strip-text span{font-size:13px;color:var(--text-2);line-height:1.7;}
.countdown{display:flex;align-items:center;gap:10px;}
.cd-block{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  min-width:56px;aspect-ratio:1/1.1;padding:6px 4px;border-radius:12px;
  background:var(--surface);border:1px solid rgba(255,180,84,.32);
}
.cd-block b{
  font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:20px;font-weight:600;color:var(--amber);line-height:1.1;
  transition:transform 120ms ease;
}
.cd-block b.tick{transform:translateY(-2px);}
.cd-block i{font-style:normal;font-size:11px;color:var(--text-3);margin-top:2px;}

/* ---------- 咨询表单 ---------- */
.consult-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start;}
.consult-info h2{font-size:clamp(1.5rem,2.4vw,2.125rem);line-height:1.32;font-weight:700;color:var(--text-1);margin-bottom:18px;}
.consult-info > p{font-size:15px;color:var(--text-2);margin-bottom:26px;max-width:460px;}
.point-list{display:flex;flex-direction:column;gap:14px;margin-bottom:30px;}
.point-list li{display:flex;gap:10px;font-size:14.5px;line-height:1.7;color:var(--text-2);}
.point-list svg{width:20px;height:20px;flex-shrink:0;margin-top:2px;stroke:var(--glow);stroke-width:1.8;fill:none;}
.contact-box{
  padding:18px 20px;border-radius:var(--r-md);
  background:var(--surface);border:1px solid var(--line);
  font-size:12.5px;line-height:1.9;color:var(--text-3);
}
.contact-box b{display:block;color:var(--text-1);font-size:13.5px;font-weight:600;margin-bottom:6px;}

.form-card{padding:32px;border-radius:var(--r-lg);}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13px;color:var(--text-3);margin-bottom:8px;letter-spacing:.02em;}
.field input,.field textarea{
  width:100%;padding:12px 14px;border-radius:12px;
  background:var(--surface-2);border:1px solid var(--line);
  color:var(--text-1);font-size:15px;line-height:1.6;
  transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.field textarea{resize:vertical;min-height:104px;}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3);}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--glow);box-shadow:0 0 0 4px var(--glow-soft);
  background:#16374a;
}
.field.error input,.field.error textarea{border-color:var(--danger);box-shadow:0 0 0 4px rgba(255,107,107,.12);}
.err-msg{display:none;font-size:12.5px;color:var(--danger);margin-top:6px;}
.field.error .err-msg{display:block;}
.type-chips{display:flex;flex-wrap:wrap;gap:10px;}
.type-chips label{position:relative;margin:0;}
.type-chips input{position:absolute;opacity:0;width:0;height:0;}
.type-chips span{
  display:inline-block;padding:8px 16px;border-radius:999px;font-size:13.5px;
  border:1px solid var(--line);color:var(--text-2);cursor:pointer;
  transition:background var(--ease),color var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.type-chips span:hover{background:var(--glow-soft);color:var(--text-1);}
.type-chips input:checked + span{
  background:var(--glow-soft);border-color:var(--line-strong);color:var(--glow);font-weight:600;
  box-shadow:0 0 0 1px rgba(46,230,200,.28);
}
.type-chips input:focus-visible + span{outline:2px solid var(--glow);outline-offset:2px;}
.form-note{margin-top:14px;font-size:12px;line-height:1.8;color:var(--text-3);}
.form-result{
  display:none;margin-top:14px;padding:12px 14px;border-radius:12px;
  font-size:13.5px;line-height:1.7;
  background:var(--glow-soft);border:1px solid var(--line-strong);color:var(--glow);
}
.form-result.show{display:block;}
.form-result.error{background:rgba(255,107,107,.1);border-color:rgba(255,107,107,.5);color:var(--danger);}

/* ---------- 最新信息 ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.post-card{
  border-radius:var(--r-md);background:var(--surface);border:1px solid var(--line);
  overflow:hidden;transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
  box-shadow:var(--shadow-card);
}
.post-card:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:var(--shadow-hover);}
.post-link{display:flex;flex-direction:column;height:100%;color:inherit;}
.post-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--surface-2);}
.post-cover img{width:100%;height:100%;object-fit:cover;transition:transform 260ms cubic-bezier(.2,.7,.3,1);}
.post-card:hover .post-cover img{transform:scale(1.04);}
.post-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-cat{
  align-self:flex-start;font-size:12px;padding:3px 11px;border-radius:999px;
  border:1px solid var(--line-strong);color:var(--glow);background:var(--glow-soft);
}
.post-title{
  font-size:17px;font-weight:600;line-height:1.5;color:var(--text-1);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-excerpt{
  font-size:14px;line-height:1.7;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.post-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  gap:12px;padding-top:12px;border-top:1px solid var(--line);
  font-size:12.5px;color:var(--text-3);
}
.post-foot .arrow{color:var(--glow);transition:transform var(--ease);}
.post-card:hover .post-foot .arrow{transform:translateX(4px);}
.empty-state{
  padding:64px 24px;text-align:center;border-radius:var(--r-lg);
  display:flex;flex-direction:column;align-items:center;gap:16px;
}
.empty-state p{font-size:14.5px;color:var(--text-2);}

/* ---------- FAQ ---------- */
.faq{max-width:860px;margin:0 auto;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:20px 0;font-size:17px;font-weight:600;color:var(--text-1);line-height:1.55;
  transition:color var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--glow);}
.faq-item summary::after{
  content:"+";font-size:22px;line-height:1;color:var(--glow);
  transition:transform var(--ease),color var(--ease);flex-shrink:0;
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-answer{padding:0 0 22px;font-size:15px;line-height:1.9;color:var(--text-2);max-width:760px;}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;background:#04101A;padding-top:1px;}
.site-footer::before{
  content:"";display:block;height:1px;
  background:linear-gradient(90deg,transparent,rgba(46,230,200,.55),transparent);
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;
  padding:64px 0 48px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:13.5px;line-height:1.9;color:var(--text-3);max-width:300px;}
.footer-col h4{
  font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:16px;
  display:flex;align-items:center;gap:8px;
}
.footer-col h4::before{
  content:"";width:6px;height:6px;border-radius:2px;background:var(--glow);flex-shrink:0;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a,.footer-col li{font-size:13.5px;color:var(--text-3);line-height:1.8;}
.footer-col a:hover{color:var(--text-1);padding-left:2px;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:18px 0 26px;border-top:1px solid var(--line);
  font-size:12.5px;color:var(--text-3);
}
.to-top{display:inline-flex;align-items:center;gap:6px;color:var(--text-3);font-size:12.5px;}
.to-top:hover{color:var(--glow);}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{max-width:1080px;}
  .hero-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:1023px){
  .nav-chips{display:none;}
  .nav-toggle{display:grid;}
  .nav-wrap{justify-content:space-between;}
  .hero{min-height:0;padding:72px 0 64px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero::before,.hero::after{display:none;}
  .hero-sub{max-width:none;}
  .section{padding:72px 0;}
  .trust-list{grid-template-columns:repeat(2,1fr);}
  .trust-list li:nth-child(3){border-left:0;}
  .trust-list li:nth-child(n+3){border-top:1px solid var(--line);}
  .ladder-grid{grid-template-columns:1fr;}
  .ladder-card{min-height:0 !important;}
  .ladder-card:not(:last-child)::before{display:none;}
  .plan-grid{grid-template-columns:1fr;gap:20px;}
  .plan-card.featured{transform:none;}
  .plan-card.featured:hover{transform:translateY(-4px);}
  .consult-grid{grid-template-columns:1fr;gap:32px;}
  .post-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 36px;}
}
@media (max-width:767px){
  .hero{padding:56px 0 52px;}
  .hero-cta{gap:12px;}
  .hero-cta .btn{flex:1 1 100%;}
  .hero-metrics{gap:18px;}
  .hero-metrics li{padding-right:18px;}
  .section{padding:56px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:32px;}
  .strip{border-radius:24px;padding:22px 20px;gap:18px;}
  .countdown{width:100%;}
  .cd-block{flex:1;min-width:0;aspect-ratio:1/1;}
  .strip .btn{width:100%;}
  .post-grid{grid-template-columns:1fr;}
  .plan-card{padding:26px 22px;}
  .form-card{padding:24px 20px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:479px){
  .container{padding:0 18px;}
  body{font-size:15px;}
  .hero-copy h1{font-size:32px;}
  .hero-metrics b{font-size:19px;}
  .brand-text strong{font-size:16px;}
  .brand-mark{width:34px;height:34px;}
  .btn{height:44px;padding:0 20px;font-size:14px;}
  .cd-block b{font-size:17px;}
  .faq-item summary{font-size:16px;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{transition-duration:1ms !important;animation-duration:1ms !important;}
}

/* roulang page: category1 */
:root{
  --ink-900:#05121B;
  --ink-800:#0A1E2B;
  --surface:#0E2433;
  --surface-2:#13303F;
  --line:rgba(126,200,214,.16);
  --line-strong:rgba(46,230,200,.42);
  --glow:#2EE6C8;
  --glow-soft:rgba(46,230,200,.14);
  --glow-deep:#17B9A4;
  --amber:#FFB454;
  --amber-soft:rgba(255,180,84,.14);
  --text-1:#E8F4F8;
  --text-2:#9FB6C4;
  --text-3:#6E8898;
  --danger:#FF6B6B;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --pill:999px;
  --shadow:0 12px 32px rgba(0,0,0,.38);
  --shadow-hover:0 20px 56px rgba(0,0,0,.5);
  --ring:0 0 0 1px rgba(46,230,200,.35),0 10px 34px rgba(46,230,200,.18);
  --ease:180ms cubic-bezier(.2,.7,.3,1);
  --font:"Noto Sans SC","Source Han Sans SC","PingFang SC",system-ui,-apple-system,sans-serif;
  --mono:"DIN Alternate","Inter",ui-monospace,"SFMono-Regular",monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text-2);
  background-color:var(--ink-900);
  background-image:
    radial-gradient(900px 520px at 84% -8%, rgba(46,230,200,.10), transparent 68%),
    linear-gradient(rgba(126,200,214,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(126,200,214,.03) 1px, transparent 1px);
  background-size:auto,48px 48px,48px 48px;
  background-attachment:fixed,fixed,fixed;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;}
a{color:var(--glow);text-decoration:none;transition:color var(--ease),opacity var(--ease);}
a:hover{color:#7BF3E1;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--glow);outline-offset:2px;border-radius:4px;}
::selection{background:rgba(46,230,200,.28);color:#fff;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-alt{background:var(--ink-800);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:40px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.18em;color:var(--glow);
  text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--glow);opacity:.7;}
h2{font-size:clamp(1.5rem,2.4vw,2.125rem);line-height:1.3;color:var(--text-1);font-weight:700;letter-spacing:-.01em;}
.section-head p{margin-top:14px;font-size:15px;color:var(--text-2);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--pill);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--glow),var(--glow-deep));
  color:#04212A;
  box-shadow:0 0 0 1px rgba(46,230,200,.35),0 10px 30px rgba(46,230,200,.22);
}
.btn-primary:hover{color:#04212A;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(46,230,200,.55),0 16px 42px rgba(46,230,200,.34);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(46,230,200,.4),0 6px 18px rgba(46,230,200,.18);}
.btn-ghost{
  background:rgba(255,255,255,.04);
  border-color:var(--line);
  color:var(--text-1);
}
.btn-ghost:hover{border-color:var(--line-strong);background:var(--glow-soft);color:var(--text-1);transform:translateY(-2px);}
.btn-amber{
  background:linear-gradient(135deg,#FFC978,#F09B2E);
  color:#2A1700;
  box-shadow:0 0 0 1px rgba(255,180,84,.4),0 10px 30px rgba(255,180,84,.22);
}
.btn-amber:hover{color:#2A1700;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(255,180,84,.6),0 16px 42px rgba(255,180,84,.32);}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;box-shadow:none;transform:none;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(5,18,27,.72);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  transition:background var(--ease),box-shadow var(--ease);
}
.site-header.scrolled{background:rgba(5,18,27,.94);box-shadow:0 14px 34px rgba(0,0,0,.46);}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:68px;}
.brand{display:inline-flex;align-items:center;gap:12px;color:var(--text-1);}
.brand:hover{color:var(--text-1);}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;display:grid;place-items:center;
  border-radius:var(--r-sm);
  background:linear-gradient(160deg,rgba(255,255,255,.10),rgba(255,255,255,.02));
  border:1px solid rgba(255,255,255,.14);
  box-shadow:inset 0 0 18px rgba(46,230,200,.14);
}
.brand-mark svg{width:22px;height:22px;fill:none;stroke:var(--glow);stroke-width:1.4;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:18px;font-weight:700;letter-spacing:.01em;}
.brand-text em{font-style:normal;font-size:11px;letter-spacing:.18em;color:var(--text-3);margin-top:3px;}
.nav-chips{display:flex;align-items:center;gap:6px;padding:5px;border-radius:var(--pill);background:rgba(255,255,255,.04);border:1px solid var(--line);}
.chip{
  display:inline-flex;align-items:center;justify-content:center;
  padding:8px 16px;border-radius:var(--pill);
  font-size:14px;color:var(--text-2);white-space:nowrap;
  transition:background var(--ease),color var(--ease),box-shadow var(--ease);
}
.chip:hover{background:var(--glow-soft);color:var(--text-1);}
.chip.active{background:var(--glow);color:#04212A;font-weight:600;box-shadow:0 0 0 1px rgba(46,230,200,.4),0 8px 22px rgba(46,230,200,.26);}
.chip.active:hover{color:#04212A;}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:var(--r-sm);
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  cursor:pointer;position:relative;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;left:50%;top:50%;width:18px;height:1.6px;background:var(--text-1);
  transform:translate(-50%,-50%);transition:transform var(--ease),opacity var(--ease);
  content:"";
}
.nav-toggle span::before{transform:translate(-50%,-7px);}
.nav-toggle span::after{transform:translate(-50%,7px);}
body.nav-open .nav-toggle span{background:transparent;}
body.nav-open .nav-toggle span::before{transform:translate(-50%,-50%) rotate(45deg);}
body.nav-open .nav-toggle span::after{transform:translate(-50%,-50%) rotate(-45deg);}

/* ---------- 页头条带 ---------- */
.page-hero{
  position:relative;overflow:hidden;
  border-bottom:1px solid var(--line);
  background-image:linear-gradient(180deg,rgba(5,18,27,.76),rgba(5,18,27,.96)),url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
}
.page-hero::after{
  content:"";position:absolute;inset:auto -120px -160px auto;width:520px;height:520px;
  border-radius:50%;border:1px solid rgba(46,230,200,.12);
  box-shadow:0 0 0 60px rgba(46,230,200,.04),0 0 0 120px rgba(46,230,200,.025);
  pointer-events:none;
}
.page-hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.5fr .8fr;gap:48px;align-items:center;
  padding:72px 0 64px;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:20px;}
.breadcrumb a{color:var(--text-3);}
.breadcrumb a:hover{color:var(--glow);}
.breadcrumb span.sep{opacity:.6;}
.breadcrumb .current{color:var(--text-2);}
.page-hero h1{
  font-size:clamp(2.25rem,4.4vw,3.5rem);line-height:1.22;letter-spacing:-.01em;
  font-weight:700;color:var(--text-1);margin-bottom:18px;
}
.page-hero h1 .accent{
  background:linear-gradient(120deg,var(--glow),#9CF6E6);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.page-hero .lede{font-size:16px;max-width:600px;color:var(--text-2);}
.chip-switch{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}
.chip-switch .chip{border:1px solid var(--line);background:rgba(255,255,255,.04);}
.chip-switch .chip.active{background:var(--glow);border-color:transparent;color:#04212A;}
.glass-card{
  border-radius:var(--r-lg);
  background:linear-gradient(160deg,rgba(255,255,255,.08),rgba(255,255,255,.02));
  border:1px solid rgba(255,255,255,.12);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow);
  position:relative;overflow:hidden;
}
.data-card{padding:26px;}
.data-card::before{
  content:"";position:absolute;left:0;top:0;width:100%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(46,230,200,.75),transparent);
}
.data-card h2{font-size:15px;font-weight:600;color:var(--text-2);letter-spacing:.04em;margin-bottom:18px;}
.data-row{display:flex;align-items:baseline;justify-content:space-between;gap:14px;padding:13px 0;border-bottom:1px dashed var(--line);}
.data-row:last-of-type{border-bottom:0;}
.data-row dt{font-size:13.5px;color:var(--text-3);}
.data-row dd{margin:0;font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:20px;color:var(--text-1);font-weight:700;}
.data-row dd.small{font-size:15px;}
.badge-amber{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:18px;padding:6px 12px;border-radius:var(--pill);
  font-size:12.5px;color:var(--amber);
  background:var(--amber-soft);border:1px solid rgba(255,180,84,.38);
}
.badge-amber::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--amber);}

/* ---------- 卡片网格 ---------- */
.grid-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.info-card{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:26px 24px 24px;
  box-shadow:var(--shadow);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.info-card:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--shadow-hover);}
.card-index{
  font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:13px;color:var(--glow);opacity:.75;letter-spacing:.14em;
  display:block;margin-bottom:14px;
}
.info-card h3{font-size:18px;font-weight:600;color:var(--text-1);margin-bottom:10px;line-height:1.45;}
.info-card p{font-size:14px;line-height:1.7;color:var(--text-2);}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
.tag{
  font-size:12px;padding:4px 10px;border-radius:var(--pill);
  color:var(--glow);border:1px solid rgba(46,230,200,.32);background:rgba(46,230,200,.06);
}

/* ---------- 图文区块 ---------- */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.split-media{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);}
.split-media img{width:100%;aspect-ratio:16/11;object-fit:cover;transition:transform var(--ease);}
.split-media:hover img{transform:scale(1.04);}
.split-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,18,27,.10),rgba(5,18,27,.62));
  pointer-events:none;
}
.split-body h2{margin-bottom:16px;}
.check-list{margin-top:24px;display:grid;gap:16px;}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:14.5px;line-height:1.7;color:var(--text-2);}
.check-list .dot{
  flex:0 0 20px;width:20px;height:20px;margin-top:3px;border-radius:50%;
  display:grid;place-items:center;background:var(--glow-soft);border:1px solid rgba(46,230,200,.4);
}
.check-list .dot svg{width:11px;height:11px;stroke:var(--glow);stroke-width:2.4;fill:none;}
.check-list strong{color:var(--text-1);font-weight:600;}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative;}
.step{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px 22px;transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.step:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--shadow-hover);}
.step-idx{
  font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:15px;
  width:34px;height:34px;border-radius:50%;display:grid;place-items:center;
  color:var(--glow);border:1px solid rgba(46,230,200,.36);background:var(--glow-soft);
  margin-bottom:16px;font-weight:700;
}
.step h3{font-size:17px;font-weight:600;color:var(--text-1);margin-bottom:8px;}
.step p{font-size:13.5px;line-height:1.7;color:var(--text-2);}

/* ---------- 对照两栏 ---------- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.compare-col{
  border-radius:var(--r-md);padding:26px 24px;
  background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow);
}
.compare-col.warn{border-color:rgba(255,107,107,.3);background:linear-gradient(180deg,rgba(255,107,107,.05),transparent),var(--surface);}
.compare-col h3{font-size:17px;color:var(--text-1);margin-bottom:16px;display:flex;align-items:center;gap:10px;}
.compare-col h3 .sq{width:8px;height:8px;background:var(--glow);border-radius:2px;}
.compare-col.warn h3 .sq{background:var(--danger);}
.compare-col li{position:relative;padding-left:18px;font-size:14px;line-height:1.75;color:var(--text-2);margin-bottom:12px;}
.compare-col li:last-child{margin-bottom:0;}
.compare-col li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--glow);opacity:.7;}
.compare-col.warn li::before{background:var(--danger);opacity:.8;}

/* ---------- FAQ ---------- */
.faq{max-width:860px;margin:0 auto;}
.faq details{
  border-bottom:1px solid var(--line);
  padding:20px 0;
}
.faq details:first-child{border-top:1px solid var(--line);}
.faq summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:17px;font-weight:600;color:var(--text-1);line-height:1.5;
  transition:color var(--ease);
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary:hover{color:var(--glow);}
.faq summary .sign{
  flex:0 0 26px;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line-strong);position:relative;
  transition:transform var(--ease),border-color var(--ease),background var(--ease);
}
.faq summary .sign::before,.faq summary .sign::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--glow);border-radius:2px;
  transition:background var(--ease);
}
.faq summary .sign::before{width:11px;height:1.6px;transform:translate(-50%,-50%);}
.faq summary .sign::after{width:1.6px;height:11px;transform:translate(-50%,-50%);}
.faq details[open] summary{color:var(--glow);}
.faq details[open] summary .sign{transform:rotate(45deg);background:var(--glow-soft);}
.faq .answer{margin-top:12px;font-size:15px;line-height:1.9;color:var(--text-2);max-width:780px;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border:1px solid var(--line-strong);border-radius:var(--r-lg);
  padding:48px;
  background-image:linear-gradient(120deg,rgba(5,18,27,.92),rgba(10,30,43,.86)),url("/assets/images/backpic/back-3.webp");
  background-size:cover;background-position:center;
  box-shadow:var(--shadow);
  display:grid;grid-template-columns:1.4fr .6fr;gap:32px;align-items:center;
}
.cta-band h2{margin-bottom:12px;}
.cta-band p{font-size:15px;color:var(--text-2);max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;}

/* ---------- 相关分类互链 ---------- */
.cross-links{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:40px;}
.cross-card{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:24px;border-radius:var(--r-md);
  background:var(--surface);border:1px solid var(--line);
  color:var(--text-1);transition:transform var(--ease),border-color var(--ease),background var(--ease);
}
.cross-card:hover{transform:translateY(-2px);border-color:var(--line-strong);background:var(--surface-2);color:var(--text-1);}
.cross-card .cross-label{font-size:12.5px;color:var(--text-3);letter-spacing:.14em;}
.cross-card strong{display:block;font-size:17px;font-weight:600;margin-top:6px;}
.cross-card .arrow{font-size:20px;color:var(--glow);transition:transform var(--ease);}
.cross-card:hover .arrow{transform:translateX(4px);}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#04101A;position:relative;padding-top:72px;
  border-top:1px solid transparent;
}
.site-footer::before{
  content:"";position:absolute;left:0;top:0;width:100%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(46,230,200,.6),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:56px;}
.footer-brand p{margin-top:18px;font-size:13.5px;line-height:1.8;color:var(--text-3);max-width:340px;}
.footer-col h4{
  font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:18px;
  display:flex;align-items:center;gap:8px;
}
.footer-col h4::before{content:"";width:6px;height:6px;background:var(--glow);border-radius:1px;}
.footer-col li{margin-bottom:12px;font-size:13.5px;color:var(--text-3);line-height:1.7;}
.footer-col a{color:var(--text-2);font-size:13.5px;display:inline-block;transition:color var(--ease),transform var(--ease);}
.footer-col a:hover{color:var(--text-1);transform:translateX(2px);}
.footer-bottom{
  border-top:1px solid var(--line);padding:22px 0 28px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  font-size:12.5px;color:var(--text-3);
}
.to-top{color:var(--text-2);font-size:12.5px;}
.to-top:hover{color:var(--glow);}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .page-hero-inner{grid-template-columns:1.4fr .85fr;gap:36px;}
}
@media (max-width:1023px){
  .section{padding:72px 0;}
  .nav-chips{gap:4px;}
  .chip{padding:7px 12px;font-size:13px;}
  .page-hero-inner{grid-template-columns:1fr;gap:32px;padding:56px 0;}
  .grid-cards{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .split{grid-template-columns:1fr;gap:32px;}
  .split-media{order:-1;}
  .cta-band{grid-template-columns:1fr;padding:36px;}
  .cta-actions{justify-content:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .nav-chips{
    position:fixed;top:68px;right:0;bottom:0;width:min(78vw,320px);
    flex-direction:column;align-items:stretch;gap:8px;padding:24px 18px;
    border-radius:0;border-left:1px solid var(--line);border-top:1px solid var(--line);
    background:rgba(6,22,32,.98);
    backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
    transform:translateX(105%);transition:transform var(--ease);
    overflow-y:auto;z-index:70;
  }
  .nav-chips .chip{justify-content:flex-start;padding:13px 16px;font-size:15px;border-radius:var(--r-sm);}
  body.nav-open .nav-chips{transform:translateX(0);}
  .nav-toggle{display:inline-block;}
  .nav-actions .btn-sm{display:none;}
  .grid-cards{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .compare{grid-template-columns:1fr;}
  .cross-links{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:40px;}
  .page-hero h1{font-size:clamp(1.9rem,7vw,2.4rem);}
  .data-card{padding:22px;}
}
@media (max-width:479px){
  .container{padding:0 18px;}
  .section{padding:56px 0;}
  .btn{width:100%;}
  .nav-actions{gap:8px;}
  .cta-band{padding:26px 20px;}
  .info-card,.step,.compare-col{padding:22px 18px;}
  .breadcrumb{font-size:12.5px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}

/* roulang page: article */
:root{
  --ink-900:#05121B;
  --ink-800:#0A1E2B;
  --surface:#0E2433;
  --surface-2:#13303F;
  --line:rgba(126,200,214,.16);
  --line-strong:rgba(46,230,200,.42);
  --glow:#2EE6C8;
  --glow-soft:rgba(46,230,200,.14);
  --glow-deep:#17B9A4;
  --amber:#FFB454;
  --amber-soft:rgba(255,180,84,.14);
  --text-1:#E8F4F8;
  --text-2:#9FB6C4;
  --text-3:#6E8898;
  --danger:#FF6B6B;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --shadow:0 12px 32px rgba(0,0,0,.38);
  --shadow-hover:0 20px 56px rgba(0,0,0,.5);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"DIN Alternate","Inter",ui-monospace,SFMono-Regular,Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--text-2);
  background-color:var(--ink-900);
  background-image:
    radial-gradient(900px 520px at 82% -8%, rgba(46,230,200,.10), transparent 62%),
    radial-gradient(720px 460px at 4% 32%, rgba(23,185,164,.07), transparent 66%),
    linear-gradient(180deg,var(--ink-900) 0%,#061520 46%,var(--ink-900) 100%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    linear-gradient(to right, rgba(126,200,214,.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(126,200,214,.05) 1px, transparent 1px);
  background-size:48px 48px;
  opacity:.4;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--glow);text-decoration:none;transition:color 180ms var(--ease),background 180ms var(--ease),border-color 180ms var(--ease),transform 180ms var(--ease)}
a:hover{color:var(--text-1)}
button{font-family:inherit}
h1,h2,h3,h4{color:var(--text-1);margin:0;line-height:1.3;font-weight:700;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0}
:focus-visible{outline:2px solid var(--glow);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;position:relative;z-index:1}

/* ---------- 顶部阅读进度 ---------- */
.read-bar{position:fixed;top:0;left:0;height:2px;width:0;background:linear-gradient(90deg,var(--glow),var(--glow-deep));box-shadow:0 0 12px rgba(46,230,200,.7);z-index:90;transition:width 120ms linear}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(5,18,27,.74);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid var(--line);
  transition:background 240ms var(--ease),box-shadow 240ms var(--ease);
}
.site-header.scrolled{background:rgba(5,18,27,.94);box-shadow:0 14px 36px rgba(0,0,0,.46)}
.nav-wrap{display:flex;align-items:center;gap:24px;height:68px}
.brand{display:flex;align-items:center;gap:10px;color:inherit;flex-shrink:0}
.brand:hover{color:inherit}
.brand-mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(160deg,rgba(255,255,255,.10),rgba(255,255,255,.02));
  border:1px solid rgba(255,255,255,.12);
  box-shadow:inset 0 0 0 1px rgba(46,230,200,.18);
}
.brand-mark svg{width:19px;height:19px;fill:var(--glow)}
.brand-text{display:flex;flex-direction:column;line-height:1.16}
.brand-text strong{font-size:18px;font-weight:700;color:var(--text-1);letter-spacing:.02em}
.brand-text em{font-style:normal;font-size:11px;color:var(--text-3);letter-spacing:.18em}
.nav-chips{display:flex;align-items:center;gap:8px;flex:1;justify-content:center}
.chip{
  display:inline-flex;align-items:center;justify-content:center;
  padding:8px 16px;border-radius:var(--r-pill);
  font-size:14px;color:var(--text-2);
  background:rgba(255,255,255,.04);
  border:1px solid transparent;
  white-space:nowrap;
  transition:color 180ms var(--ease),background 180ms var(--ease),border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.chip:hover{background:var(--glow-soft);color:var(--text-1);border-color:rgba(46,230,200,.28)}
.chip.active{
  background:var(--glow);color:#04212A;font-weight:600;
  box-shadow:0 0 0 1px rgba(46,230,200,.35),0 10px 26px rgba(46,230,200,.24);
}
.chip.active:hover{color:#04212A;background:var(--glow)}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;cursor:pointer;
  transition:transform 180ms var(--ease),box-shadow 180ms var(--ease),background 180ms var(--ease),color 180ms var(--ease),opacity 180ms var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,var(--glow),var(--glow-deep));
  color:#04212A;
  box-shadow:0 10px 26px rgba(46,230,200,.24);
}
.btn-primary:hover{color:#04212A;transform:translateY(-1px);box-shadow:0 0 0 1px rgba(46,230,200,.4),0 16px 38px rgba(46,230,200,.34)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(46,230,200,.3),0 6px 16px rgba(46,230,200,.18)}
.btn-ghost{
  background:rgba(255,255,255,.04);color:var(--text-1);
  border-color:var(--line);
}
.btn-ghost:hover{background:var(--glow-soft);border-color:var(--line-strong);color:var(--text-1);transform:translateY(-1px)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;cursor:not-allowed;transform:none}
.btn .spinner{width:14px;height:14px;border-radius:50%;border:2px solid rgba(4,33,42,.35);border-top-color:#04212A;animation:spin 700ms linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:12px;
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle span{position:relative;display:block;width:18px;height:2px;border-radius:2px;background:var(--text-1);transition:background 180ms var(--ease)}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--text-1);
  transition:transform 200ms var(--ease),top 200ms var(--ease);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{top:0;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg)}

/* ---------- 文章页头 ---------- */
.article-hero{
  position:relative;overflow:hidden;
  padding:40px 0 56px;
  background-image:linear-gradient(180deg,rgba(5,18,27,.82),rgba(5,18,27,.96)),url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.article-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(680px 340px at 78% 0%,rgba(46,230,200,.16),transparent 68%);
}
.article-hero::after{
  content:"";position:absolute;right:-160px;top:-200px;width:560px;height:560px;border-radius:50%;
  border:1px solid rgba(46,230,200,.12);
  box-shadow:0 0 0 60px rgba(46,230,200,.03),0 0 0 130px rgba(46,230,200,.02);
  pointer-events:none;
}
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);margin-bottom:28px;position:relative;z-index:1;
}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--glow)}
.breadcrumb .sep{color:var(--text-3);opacity:.7}
.breadcrumb .current{
  color:var(--text-2);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.article-head{position:relative;z-index:1;max-width:860px}
.head-chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 14px;border-radius:var(--r-pill);
  font-size:12.5px;color:var(--glow);
  background:var(--glow-soft);border:1px solid rgba(46,230,200,.3);
  margin-bottom:18px;
}
.article-head h1{
  font-size:clamp(1.9rem,3.6vw,2.9rem);
  line-height:1.24;letter-spacing:-.015em;
  margin-bottom:18px;
}
.article-lead{
  font-size:16.5px;line-height:1.85;color:var(--text-2);
  max-width:760px;margin-bottom:22px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px 18px;font-size:12.5px;color:var(--text-3)}
.article-meta span{display:inline-flex;align-items:center;gap:6px}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--text-3);opacity:.7}
.article-meta .num{font-family:var(--font-num);font-variant-numeric:tabular-nums;letter-spacing:.02em}

/* ---------- 文章主体布局 ---------- */
.article-shell{padding:56px 0 24px}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,760px) 260px;
  gap:48px;
  justify-content:center;
  align-items:start;
}
.article-main{min-width:0}
.article-cover{
  border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  margin-bottom:36px;
  aspect-ratio:16/9;background:var(--surface);
}
.article-cover img{width:100%;height:100%;object-fit:cover;transition:transform 400ms var(--ease)}
.article-cover:hover img{transform:scale(1.03)}
.article-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow);
  padding:36px 40px 40px;
}
.article-body{font-size:17px;line-height:1.95;color:#D8E7EE;overflow-wrap:break-word}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 20px;color:#D8E7EE}
.article-body h2{
  position:relative;
  font-size:24px;line-height:1.4;color:var(--text-1);
  margin:48px 0 18px;padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:4px;border-radius:2px;
  background:var(--glow);box-shadow:0 0 14px rgba(46,230,200,.7);
}
.article-body h3{font-size:19px;line-height:1.5;color:var(--text-1);margin:32px 0 14px}
.article-body h4{font-size:17px;color:var(--text-1);margin:24px 0 12px}
.article-body a{color:var(--glow);border-bottom:1px solid rgba(46,230,200,.35)}
.article-body a:hover{color:#7DF7E2;border-bottom-color:#7DF7E2}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px}
.article-body li{margin:8px 0;line-height:1.95}
.article-body ul li{list-style:none;position:relative;padding-left:18px}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:.78em;width:6px;height:6px;border-radius:50%;
  background:var(--glow);box-shadow:0 0 8px rgba(46,230,200,.7);
}
.article-body ol li{list-style:decimal;color:#D8E7EE}
.article-body blockquote{
  margin:28px 0;padding:20px 24px;
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  border:1px solid rgba(255,255,255,.10);
  border-left:3px solid var(--glow);
  border-radius:var(--r-md);
  color:var(--text-1);
  font-size:16.5px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-md);border:1px solid var(--line);margin:24px 0}
.article-body figure{margin:24px 0}
.article-body figcaption{text-align:center;font-size:12.5px;color:var(--text-3);margin-top:10px}
.article-body code{
  font-family:var(--font-num);font-size:14px;
  background:var(--surface-2);border:1px solid var(--line);
  border-radius:4px;padding:2px 6px;color:#B9F5EA;
}
.article-body pre{
  background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-md);
  padding:18px 20px;overflow-x:auto;margin:24px 0;
}
.article-body pre code{background:none;border:0;padding:0;font-size:13.5px;line-height:1.8}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:14.5px}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left}
.article-body th{background:var(--surface-2);color:var(--text-1);font-weight:600}
.article-body tr:hover td{background:rgba(46,230,200,.04)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0}
.empty-state{
  display:grid;place-items:center;gap:16px;text-align:center;
  padding:64px 24px;border-radius:var(--r-md);
  background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  border:1px solid rgba(255,255,255,.10);
}
.empty-state p{font-size:16px;color:var(--text-2)}

/* ---------- 标签行 ---------- */
.article-tags{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:32px;padding-top:26px;border-top:1px solid var(--line)}
.article-tags .tags-label{font-size:13px;color:var(--text-3);margin-right:2px}
.tag{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:var(--r-pill);
  font-size:12.5px;color:var(--text-2);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
}
.tag:hover{color:var(--glow);border-color:var(--line-strong);background:var(--glow-soft)}
.back-wrap{margin-top:40px}

/* ---------- 侧栏 ---------- */
.article-side{position:sticky;top:92px;display:grid;gap:20px}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px;box-shadow:var(--shadow);
}
.side-title{
  font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--text-3);
  display:flex;align-items:center;gap:8px;margin-bottom:14px;text-transform:none;
}
.side-title::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--glow);box-shadow:0 0 10px rgba(46,230,200,.8)}
.side-links{list-style:none;display:grid;gap:2px}
.side-links a{
  display:flex;align-items:center;gap:8px;
  padding:9px 10px;border-radius:var(--r-sm);
  font-size:13.5px;color:var(--text-2);
}
.side-links a::before{content:"›";color:var(--glow);opacity:.7;font-size:14px}
.side-links a:hover{background:var(--glow-soft);color:var(--text-1);transform:translateX(2px)}
.side-note{
  font-size:12.5px;line-height:1.8;color:var(--text-3);
  padding-top:14px;margin-top:14px;border-top:1px solid var(--line);
}

/* ---------- 相关推荐 ---------- */
.related{padding:72px 0 8px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.section-head h2{font-size:clamp(1.4rem,2.2vw,1.9rem)}
.section-head .more{font-size:14px;color:var(--text-2);display:inline-flex;align-items:center;gap:6px}
.section-head .more:hover{color:var(--glow);gap:10px}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.rel-card{
  display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;color:inherit;box-shadow:var(--shadow);
  transition:transform 180ms var(--ease),border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.rel-card:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:var(--shadow-hover);color:inherit}
.rel-cover{aspect-ratio:16/9;overflow:hidden;background:var(--surface-2)}
.rel-cover img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease)}
.rel-card:hover .rel-cover img{transform:scale(1.04)}
.rel-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-chip{
  align-self:flex-start;font-size:12px;color:var(--glow);
  padding:3px 10px;border-radius:var(--r-pill);
  border:1px solid rgba(46,230,200,.3);background:var(--glow-soft);
}
.rel-body h3{font-size:17px;line-height:1.5;color:var(--text-1)}
.rel-body p{font-size:13.5px;line-height:1.75;color:var(--text-2)}
.rel-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--text-3);padding-top:12px}
.rel-foot .arrow{color:var(--glow);transition:transform 180ms var(--ease)}
.rel-card:hover .rel-foot .arrow{transform:translateX(4px)}

/* ---------- CTA ---------- */
.cta-band{padding:64px 0 88px}
.cta-box{
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  padding:36px 40px;border-radius:var(--r-lg);
  background:
    radial-gradient(520px 220px at 6% 50%,rgba(255,180,84,.14),transparent 66%),
    linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  border:1px solid rgba(255,180,84,.28);
  box-shadow:var(--shadow);
}
.cta-box h2{font-size:clamp(1.3rem,2vw,1.7rem);margin-bottom:10px}
.cta-box p{font-size:14.5px;color:var(--text-2);max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.btn-amber{
  background:linear-gradient(135deg,var(--amber),#E79A33);
  color:#2A1600;
  box-shadow:0 10px 28px rgba(255,180,84,.24);
}
.btn-amber:hover{color:#2A1600;transform:translateY(-1px);box-shadow:0 0 0 1px rgba(255,180,84,.45),0 16px 38px rgba(255,180,84,.34)}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#04101A;border-top:1px solid var(--line);
  padding:64px 0 26px;position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(46,230,200,.55),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand p{font-size:13.5px;line-height:1.85;color:var(--text-3);max-width:330px;margin-top:16px}
.footer-col h4{
  font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:16px;
  display:flex;align-items:center;gap:8px;
}
.footer-col h4::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--glow);box-shadow:0 0 10px rgba(46,230,200,.8)}
.footer-col ul{list-style:none;display:grid;gap:10px;font-size:13.5px;color:var(--text-3)}
.footer-col a{color:var(--text-2);display:inline-block}
.footer-col a:hover{color:var(--text-1);transform:translateX(2px)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:48px;padding-top:20px;border-top:1px solid var(--line);
  font-size:12.5px;color:var(--text-3);
}
.to-top{color:var(--text-2)}
.to-top:hover{color:var(--glow)}

/* ---------- 断点 ---------- */
@media (max-width:1279px){
  .container{max-width:1080px}
  .article-layout{grid-template-columns:minmax(0,1fr) 250px;gap:36px}
}
@media (max-width:1024px){
  .nav-chips{
    position:fixed;top:68px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:6px;
    padding:16px 20px 22px;
    background:rgba(5,18,27,.97);
    -webkit-backdrop-filter:blur(16px);
    backdrop-filter:blur(16px);
    border-bottom:1px solid var(--line);
    box-shadow:0 24px 48px rgba(0,0,0,.5);
    transform:translateY(-14px);opacity:0;pointer-events:none;
    transition:transform 220ms var(--ease),opacity 220ms var(--ease);
  }
  .nav-chips.open{transform:translateY(0);opacity:1;pointer-events:auto}
  .chip{border-radius:12px;padding:12px 16px;background:rgba(255,255,255,.03)}
  .nav-toggle{display:inline-flex}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:40px}
  .article-side{position:static;grid-template-columns:repeat(2,minmax(0,1fr))}
  .related-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .article-hero{padding:28px 0 40px}
  .article-shell{padding:40px 0 16px}
  .article-card{padding:26px 22px 30px}
  .article-body{font-size:16px;line-height:1.9}
  .article-body h2{font-size:21px;margin-top:38px}
  .article-body h3{font-size:18px}
  .related{padding:56px 0 8px}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-box{padding:28px 24px}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px}
}
@media (max-width:520px){
  .container{padding:0 18px}
  .nav-wrap{height:64px;gap:12px}
  .nav-chips{top:64px}
  .brand-text strong{font-size:16px}
  .brand-text em{font-size:10px;letter-spacing:.16em}
  .nav-actions .btn-sm{padding:8px 14px;font-size:13px}
  .article-head h1{font-size:1.75rem}
  .article-lead{font-size:15px}
  .article-card{padding:22px 18px 26px;border-radius:var(--r-md)}
  .article-body{font-size:15.5px}
  .article-side{grid-template-columns:minmax(0,1fr)}
  .related-grid{grid-template-columns:minmax(0,1fr)}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
  .breadcrumb .current{max-width:210px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
}

/* roulang page: category2 */
:root{
  --ink-900:#05121B;
  --ink-800:#0A1E2B;
  --surface:#0E2433;
  --surface-2:#13303F;
  --line:rgba(126,200,214,.16);
  --line-strong:rgba(46,230,200,.42);
  --glow:#2EE6C8;
  --glow-soft:rgba(46,230,200,.14);
  --glow-deep:#17B9A4;
  --amber:#FFB454;
  --amber-soft:rgba(255,180,84,.14);
  --text-1:#E8F4F8;
  --text-2:#9FB6C4;
  --text-3:#6E8898;
  --danger:#FF6B6B;
  --glass:linear-gradient(160deg,rgba(255,255,255,.08),rgba(255,255,255,.02));
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --shadow:0 12px 32px rgba(0,0,0,.38);
  --shadow-lg:0 20px 56px rgba(0,0,0,.5);
  --ease:180ms cubic-bezier(.2,.7,.3,1);
  --font:"Noto Sans SC","Source Han Sans SC","PingFang SC",system-ui,-apple-system,sans-serif;
  --mono:"DIN Alternate","Inter",ui-monospace,SFMono-Regular,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text-2);
  background:var(--ink-900);
  -webkit-font-smoothing:antialiased;
  position:relative;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background:
    radial-gradient(56% 38% at 82% 0%, rgba(46,230,200,.09), transparent 70%),
    radial-gradient(48% 32% at 6% 18%, rgba(46,230,200,.05), transparent 72%),
    radial-gradient(40% 28% at 50% 100%, rgba(255,180,84,.04), transparent 75%);
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(126,200,214,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(126,200,214,.03) 1px, transparent 1px);
  background-size:48px 48px;
}
img{max-width:100%;display:block}
a{color:var(--glow);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--text-1)}
button{font-family:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--text-1);font-weight:700;line-height:1.3}
p{margin:0}
::selection{background:rgba(46,230,200,.28);color:#fff}
:focus-visible{outline:2px solid var(--glow);outline-offset:2px;border-radius:4px}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:1;
}
.container-wide{max-width:1320px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 24px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  border:1px solid transparent;
  cursor:pointer;
  white-space:nowrap;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),filter var(--ease);
}
.btn:active{transform:translateY(1px)}
.btn-primary{
  background:linear-gradient(135deg,var(--glow),var(--glow-deep));
  color:#04141a;
  box-shadow:0 10px 28px rgba(46,230,200,.22);
}
.btn-primary:hover{
  color:#04141a;
  filter:brightness(1.07);
  box-shadow:0 0 0 1px rgba(46,230,200,.45),0 14px 40px rgba(46,230,200,.32);
}
.btn-ghost{
  background:rgba(255,255,255,.03);
  border-color:var(--line);
  color:var(--text-1);
}
.btn-ghost:hover{
  background:var(--glow-soft);
  border-color:var(--line-strong);
  color:var(--text-1);
}
.btn-amber{
  background:linear-gradient(135deg,#FFD08A,var(--amber));
  color:#2A1A06;
  box-shadow:0 10px 28px rgba(255,180,84,.22);
}
.btn-amber:hover{
  color:#2A1A06;
  filter:brightness(1.05);
  box-shadow:0 0 0 1px rgba(255,180,84,.45),0 14px 40px rgba(255,180,84,.3);
}
.btn-sm{padding:9px 18px;font-size:13.5px}
.btn-block{width:100%}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  height:68px;
  display:flex;
  align-items:center;
  background:rgba(5,18,27,.72);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  transition:background var(--ease),box-shadow var(--ease);
}
.site-header.scrolled{
  background:rgba(5,18,27,.94);
  box-shadow:0 12px 32px rgba(0,0,0,.42);
}
.nav-wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  width:100%;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--text-1);
  text-decoration:none;
  flex:0 0 auto;
}
.brand:hover{color:var(--text-1)}
.brand-mark{
  width:38px;
  height:38px;
  display:grid;
  place-items:center;
  border-radius:11px;
  background:var(--glass);
  border:1px solid rgba(255,255,255,.12);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.brand-mark svg{width:20px;height:20px;fill:var(--glow);opacity:.92}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text strong{font-size:18px;font-weight:700;letter-spacing:.01em}
.brand-text em{
  font-style:normal;
  font-size:11px;
  color:var(--text-3);
  letter-spacing:.18em;
  margin-top:3px;
}
.nav-chips{
  display:flex;
  align-items:center;
  gap:6px;
  padding:5px;
  border-radius:999px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.chip{
  display:inline-flex;
  align-items:center;
  padding:8px 16px;
  border-radius:999px;
  font-size:14px;
  color:var(--text-2);
  white-space:nowrap;
  transition:background var(--ease),color var(--ease),box-shadow var(--ease);
}
.chip:hover{background:var(--glow-soft);color:var(--text-1)}
.chip.active{
  background:var(--glow);
  color:#04141a;
  font-weight:600;
  box-shadow:0 0 0 1px rgba(46,230,200,.35),0 8px 22px rgba(46,230,200,.25);
}
.chip.active:hover{color:#04141a}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  align-items:center;
  justify-content:center;
  border-radius:12px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  cursor:pointer;
  padding:0;
}
.nav-toggle span{
  display:block;
  width:18px;
  height:2px;
  background:var(--text-1);
  border-radius:2px;
  position:relative;
  transition:background var(--ease);
}
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";
  position:absolute;
  left:0;
  width:18px;
  height:2px;
  background:var(--text-1);
  border-radius:2px;
  transition:transform var(--ease),top var(--ease);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{top:0;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg)}

/* ---------- 页头 ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  padding:64px 0 56px;
  border-bottom:1px solid var(--line);
  isolation:isolate;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  z-index:-2;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center;
  opacity:.3;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  z-index:-1;
  background:linear-gradient(180deg,rgba(5,18,27,.78),rgba(5,18,27,.96));
}
.wave-deco{
  position:absolute;
  right:-40px;
  top:30px;
  width:520px;
  height:220px;
  opacity:.12;
  z-index:-1;
  pointer-events:none;
}
.wave-deco path{stroke:var(--glow);stroke-width:1;fill:none}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
  margin-bottom:22px;
  flex-wrap:wrap;
}
.breadcrumb a{color:var(--text-3)}
.breadcrumb a:hover{color:var(--glow)}
.breadcrumb .sep{color:rgba(110,136,152,.6)}
.breadcrumb .current{color:var(--text-2)}
.hero-top{
  display:flex;
  align-items:flex-start;
  gap:18px;
  flex-wrap:wrap;
}
h1{
  font-size:clamp(2rem,4.2vw,3.1rem);
  font-weight:700;
  line-height:1.22;
  letter-spacing:-.01em;
  max-width:20ch;
}
.count-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 14px;
  border-radius:999px;
  background:var(--amber-soft);
  border:1px solid rgba(255,180,84,.38);
  color:var(--amber);
  font-size:12.5px;
  font-weight:600;
  margin-top:10px;
  font-family:var(--mono);
  font-variant-numeric:tabular-nums;
}
.hero-lead{
  margin-top:18px;
  max-width:640px;
  font-size:16px;
  line-height:1.85;
  color:var(--text-2);
}
.chip-switch{
  display:flex;
  align-items:center;
  gap:10px;
  margin-top:28px;
  flex-wrap:wrap;
}
.switch-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 18px;
  border-radius:999px;
  font-size:13.5px;
  color:var(--text-2);
  background:rgba(255,255,255,.03);
  border:1px solid var(--line);
  transition:all var(--ease);
}
.switch-link:hover{
  color:var(--text-1);
  border-color:var(--line-strong);
  background:var(--glow-soft);
}
.switch-link.is-current{
  color:var(--glow);
  border-color:var(--line-strong);
  background:var(--glow-soft);
}

/* ---------- 板块通用 ---------- */
.section{padding:96px 0;position:relative}
.section-alt{background:var(--ink-800);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:40px}
.section-head h2{
  font-size:clamp(1.5rem,2.4vw,2.125rem);
  font-weight:700;
  line-height:1.3;
}
.section-head p{margin-top:14px;font-size:15px;line-height:1.85;color:var(--text-2)}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12.5px;
  letter-spacing:.16em;
  color:var(--glow);
  margin-bottom:14px;
  font-weight:600;
}
.eyebrow::before{
  content:"";
  width:18px;
  height:1px;
  background:var(--glow);
  display:inline-block;
}

/* ---------- 索引 + 行列表 ---------- */
.index-layout{
  display:grid;
  grid-template-columns:260px minmax(0,1fr);
  gap:48px;
  align-items:start;
}
.index-aside{
  position:sticky;
  top:96px;
  padding:22px;
  border-radius:var(--r-md);
  background:var(--surface);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.index-aside h3{
  font-size:14px;
  font-weight:600;
  color:var(--text-1);
  padding-left:12px;
  position:relative;
  margin-bottom:16px;
}
.index-aside h3::before{
  content:"";
  position:absolute;
  left:0;
  top:3px;
  width:6px;
  height:14px;
  border-radius:2px;
  background:var(--glow);
}
.index-aside ul{display:flex;flex-direction:column;gap:2px}
.index-aside a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:9px 10px;
  border-radius:var(--r-sm);
  font-size:13.5px;
  color:var(--text-2);
  transition:all var(--ease);
}
.index-aside a::after{
  content:"›";
  color:var(--text-3);
  font-size:15px;
  transition:transform var(--ease),color var(--ease);
}
.index-aside a:hover{
  background:var(--glow-soft);
  color:var(--text-1);
  transform:translateX(2px);
}
.index-aside a:hover::after{color:var(--glow);transform:translateX(3px)}
.aside-note{
  margin-top:18px;
  padding-top:16px;
  border-top:1px solid var(--line);
  font-size:12.5px;
  line-height:1.7;
  color:var(--text-3);
}
.row-list{
  border-radius:var(--r-md);
  background:var(--surface);
  border:1px solid var(--line);
  overflow:hidden;
  box-shadow:var(--shadow);
}
.index-row{
  display:grid;
  grid-template-columns:56px minmax(0,1fr) 20px;
  align-items:center;
  gap:20px;
  min-height:88px;
  padding:20px 24px;
  border-bottom:1px solid var(--line);
  text-decoration:none;
  transition:background var(--ease),transform var(--ease);
}
.index-row:last-child{border-bottom:none}
.index-row:hover{background:var(--glow-soft)}
.index-row .num{
  font-family:var(--mono);
  font-variant-numeric:tabular-nums;
  font-size:20px;
  color:var(--glow);
  opacity:.6;
  letter-spacing:.04em;
}
.index-row:hover .num{opacity:1}
.index-row .row-body{min-width:0}
.index-row h3{
  font-size:18px;
  font-weight:600;
  color:var(--text-1);
  transition:color var(--ease);
}
.index-row p{
  margin-top:6px;
  font-size:14px;
  line-height:1.7;
  color:var(--text-2);
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.index-row .arrow{
  font-size:20px;
  color:var(--text-3);
  justify-self:end;
  transition:transform var(--ease),color var(--ease);
}
.index-row:hover .arrow{transform:translateX(4px);color:var(--glow)}
.row-foot{
  display:flex;
  justify-content:flex-end;
  margin-top:20px;
}
.to-top-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:10px 20px;
  border-radius:999px;
  font-size:13.5px;
  color:var(--text-2);
  background:rgba(255,255,255,.03);
  border:1px solid var(--line);
  transition:all var(--ease);
}
.to-top-link:hover{color:var(--text-1);border-color:var(--line-strong);background:var(--glow-soft)}

/* ---------- 要点卡 ---------- */
.assure-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
}
.assure-card{
  position:relative;
  padding:26px 22px;
  border-radius:var(--r-md);
  background:var(--surface);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
  overflow:hidden;
}
.assure-card::after{
  content:"";
  position:absolute;
  right:0;
  top:0;
  width:18px;
  height:18px;
  background:linear-gradient(225deg,rgba(46,230,200,.5),transparent 62%);
  clip-path:polygon(100% 0,100% 100%,0 0);
  opacity:.55;
}
.assure-card:hover{
  transform:translateY(-2px);
  border-color:var(--line-strong);
  box-shadow:var(--shadow-lg);
}
.assure-icon{
  width:40px;
  height:40px;
  border-radius:11px;
  display:grid;
  place-items:center;
  background:var(--glow-soft);
  border:1px solid rgba(46,230,200,.3);
  margin-bottom:16px;
}
.assure-icon svg{width:20px;height:20px;stroke:var(--glow);stroke-width:1.5;fill:none}
.assure-card h3{font-size:17px;font-weight:600;margin-bottom:10px}
.assure-card p{font-size:14px;line-height:1.75;color:var(--text-2)}
.assure-tag{
  display:inline-flex;
  margin-top:14px;
  padding:4px 10px;
  border-radius:999px;
  font-size:12px;
  color:var(--glow);
  background:var(--glow-soft);
  border:1px solid rgba(46,230,200,.26);
}

/* ---------- 流程 ---------- */
.flow-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
  counter-reset:step;
}
.flow-item{
  position:relative;
  padding:26px 22px 24px;
  border-radius:var(--r-md);
  background:var(--surface-2);
  border:1px solid var(--line);
  transition:border-color var(--ease),transform var(--ease);
}
.flow-item:hover{border-color:var(--line-strong);transform:translateY(-2px)}
.flow-item .step{
  font-family:var(--mono);
  font-variant-numeric:tabular-nums;
  font-size:13px;
  letter-spacing:.14em;
  color:var(--amber);
  margin-bottom:14px;
  display:inline-flex;
  align-items:center;
  gap:8px;
}
.flow-item .step::before{
  content:"";
  width:20px;
  height:1px;
  background:rgba(255,180,84,.6);
}
.flow-item h3{font-size:17px;font-weight:600;margin-bottom:10px}
.flow-item p{font-size:14px;line-height:1.75;color:var(--text-2)}
.flow-item ul{margin-top:14px;display:flex;flex-direction:column;gap:7px}
.flow-item li{
  font-size:13px;
  color:var(--text-2);
  padding-left:14px;
  position:relative;
  line-height:1.65;
}
.flow-item li::before{
  content:"";
  position:absolute;
  left:0;
  top:8px;
  width:5px;
  height:5px;
  border-radius:50%;
  background:var(--glow);
}

/* ---------- 图文区 ---------- */
.split-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:56px;
  align-items:center;
}
.split-media{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-lg);
  aspect-ratio:16/11;
}
.split-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform 420ms cubic-bezier(.2,.7,.3,1);
}
.split-media:hover img{transform:scale(1.04)}
.split-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(5,18,27,.1),rgba(5,18,27,.62));
  pointer-events:none;
}
.check-list{display:flex;flex-direction:column;gap:18px;margin-top:26px}
.check-list li{display:grid;grid-template-columns:26px minmax(0,1fr);gap:14px}
.check-list .tick{
  width:26px;
  height:26px;
  border-radius:50%;
  display:grid;
  place-items:center;
  background:var(--glow-soft);
  border:1px solid rgba(46,230,200,.35);
  margin-top:2px;
}
.check-list .tick svg{width:13px;height:13px;stroke:var(--glow);stroke-width:2.2;fill:none}
.check-list strong{display:block;font-size:15.5px;color:var(--text-1);font-weight:600;margin-bottom:4px}
.check-list span{font-size:14px;line-height:1.75;color:var(--text-2)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:20px 0;
  font-size:17px;
  font-weight:600;
  color:var(--text-1);
  cursor:pointer;
  list-style:none;
  transition:color var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--glow)}
.faq-icon{
  flex:0 0 auto;
  width:22px;
  height:22px;
  position:relative;
  transition:transform var(--ease),color var(--ease);
  color:var(--text-3);
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  background:currentColor;
  border-radius:2px;
}
.faq-icon::before{left:0;top:10px;width:22px;height:2px}
.faq-icon::after{left:10px;top:0;width:2px;height:22px;transition:opacity var(--ease)}
.faq-item[open] .faq-icon{transform:rotate(45deg);color:var(--glow)}
.faq-item[open] summary{color:var(--glow)}
.faq-answer{
  padding:0 0 22px;
  font-size:15px;
  line-height:1.9;
  color:var(--text-2);
  max-width:720px;
}
.faq-answer a{color:var(--glow);border-bottom:1px solid rgba(46,230,200,.35)}

/* ---------- 咨询 ---------- */
.consult-layout{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:56px;
  align-items:start;
}
.consult-info h2{font-size:clamp(1.5rem,2.4vw,2.05rem)}
.consult-info > p{margin-top:16px;font-size:15px;line-height:1.85;color:var(--text-2)}
.consult-points{display:flex;flex-direction:column;gap:16px;margin-top:28px}
.consult-points li{display:grid;grid-template-columns:24px minmax(0,1fr);gap:12px;font-size:14.5px;line-height:1.75}
.consult-points .tick{
  width:24px;height:24px;border-radius:50%;
  display:grid;place-items:center;
  background:var(--glow-soft);
  border:1px solid rgba(46,230,200,.35);
  margin-top:1px;
}
.consult-points .tick svg{width:12px;height:12px;stroke:var(--glow);stroke-width:2.2;fill:none}
.meta-block{
  margin-top:32px;
  padding:20px;
  border-radius:var(--r-md);
  background:var(--surface-2);
  border:1px solid var(--line);
  font-size:12.5px;
  line-height:1.9;
  color:var(--text-3);
}
.meta-block strong{color:var(--text-2);font-weight:600}
.form-card{
  padding:32px;
  border-radius:var(--r-lg);
  background:var(--glass);
  border:1px solid rgba(255,255,255,.12);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow-lg);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:18px}
.field label{font-size:13.5px;color:var(--text-2);font-weight:500}
.field input,
.field textarea{
  width:100%;
  padding:12px 14px;
  font-family:inherit;
  font-size:14.5px;
  color:var(--text-1);
  background:var(--surface-2);
  border:1px solid var(--line);
  border-radius:12px;
  transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.field input::placeholder,
.field textarea::placeholder{color:rgba(110,136,152,.75)}
.field input:focus,
.field textarea:focus{
  outline:none;
  border-color:var(--glow);
  box-shadow:0 0 0 4px var(--glow-soft);
  background:#0F2836;
}
.field textarea{resize:vertical;min-height:104px;line-height:1.7}
.field.error input,
.field.error textarea{border-color:var(--danger);box-shadow:0 0 0 4px rgba(255,107,107,.12)}
.field .err-text{font-size:12.5px;color:var(--danger);display:none}
.field.error .err-text{display:block}
.type-chips{display:flex;flex-wrap:wrap;gap:10px}
.type-chip{
  position:relative;
  display:inline-flex;
  align-items:center;
  padding:9px 16px;
  border-radius:999px;
  font-size:13.5px;
  color:var(--text-2);
  background:rgba(255,255,255,.03);
  border:1px solid var(--line);
  cursor:pointer;
  transition:all var(--ease);
  user-select:none;
}
.type-chip input{position:absolute;opacity:0;pointer-events:none}
.type-chip:hover{border-color:var(--line-strong);color:var(--text-1)}
.type-chip:has(input:checked),
.type-chip.is-checked{
  background:var(--glow-soft);
  border-color:var(--line-strong);
  color:var(--glow);
  font-weight:600;
}
.type-chip:has(input:focus-visible){
  outline:2px solid var(--glow);
  outline-offset:2px;
}
.form-note{
  margin-top:14px;
  font-size:12px;
  line-height:1.7;
  color:var(--text-3);
}
.form-status{
  display:none;
  margin-top:14px;
  padding:12px 14px;
  border-radius:var(--r-sm);
  font-size:13.5px;
  background:var(--glow-soft);
  border:1px solid rgba(46,230,200,.35);
  color:var(--glow);
}
.form-status.show{display:block}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#04101A;
  border-top:1px solid transparent;
  position:relative;
  padding-top:64px;
  z-index:1;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(46,230,200,.55),transparent);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.1fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand .brand{margin-bottom:18px}
.footer-brand p{font-size:13.5px;line-height:1.85;color:var(--text-3);max-width:320px}
.footer-col h4{
  font-size:14px;
  font-weight:600;
  color:var(--text-1);
  padding-left:12px;
  position:relative;
  margin-bottom:18px;
}
.footer-col h4::before{
  content:"";
  position:absolute;
  left:0;top:3px;
  width:6px;height:14px;
  border-radius:2px;
  background:var(--glow);
}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col li{font-size:13.5px;color:var(--text-3);line-height:1.7}
.footer-col a{color:var(--text-3);display:inline-block;transition:color var(--ease),transform var(--ease)}
.footer-col a:hover{color:var(--text-1);transform:translateX(2px)}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 0 26px;
  border-top:1px solid var(--line);
  font-size:12.5px;
  color:var(--text-3);
  flex-wrap:wrap;
}
.to-top{color:var(--text-3)}
.to-top:hover{color:var(--glow)}

/* ---------- 断点 ---------- */
@media (max-width:1279px){
  .container{max-width:1080px}
  .assure-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .flow-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:1023px){
  .nav-chips{
    position:fixed;
    top:0;
    right:0;
    height:100vh;
    width:min(80vw,320px);
    flex-direction:column;
    align-items:stretch;
    gap:8px;
    padding:88px 20px 28px;
    border-radius:0;
    border:1px solid var(--line);
    background:rgba(8,23,33,.98);
    transform:translateX(100%);
    transition:transform var(--ease);
    z-index:90;
    box-shadow:-20px 0 60px rgba(0,0,0,.5);
  }
  .nav-chips.open{transform:translateX(0)}
  .nav-chips .chip{padding:12px 16px;font-size:15px;text-align:left}
  .nav-toggle{display:inline-flex}
  .section{padding:72px 0}
  .index-layout{grid-template-columns:1fr;gap:28px}
  .index-aside{position:static;padding:18px}
  .index-aside ul{flex-direction:row;flex-wrap:wrap;gap:8px}
  .index-aside a{padding:8px 12px;background:rgba(255,255,255,.03);border:1px solid var(--line);border-radius:999px}
  .index-aside a::after{display:none}
  .aside-note{border-top:none;padding-top:12px;margin-top:12px}
  .split-layout{grid-template-columns:1fr;gap:32px}
  .consult-layout{grid-template-columns:1fr;gap:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .section{padding:56px 0}
  .page-hero{padding:44px 0 40px}
  h1{font-size:clamp(1.85rem,7vw,2.4rem);max-width:none}
  .hero-lead{font-size:15px}
  .assure-grid{grid-template-columns:1fr}
  .flow-grid{grid-template-columns:1fr}
  .form-card{padding:22px}
  .form-row{grid-template-columns:1fr;gap:0}
  .index-row{grid-template-columns:40px minmax(0,1fr) 16px;gap:12px;padding:16px 16px;min-height:auto}
  .index-row .num{font-size:16px}
  .index-row h3{font-size:16px}
  .index-row p{white-space:normal;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
  .nav-actions .btn-sm{padding:8px 14px;font-size:13px}
  .brand-text strong{font-size:16px}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding-bottom:36px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:479px){
  .container{padding:0 18px}
  .brand-mark{width:34px;height:34px}
  .nav-actions .btn-primary{display:none}
  .chip{padding:7px 13px;font-size:13px}
  .count-badge{font-size:11.5px;padding:6px 12px}
  .switch-link{font-size:12.5px;padding:8px 14px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
}