/* roulang page: index */
:root{
  --bg:#070B14;
  --bg-2:#0B1020;
  --bg-3:#0E1526;
  --panel:#111A2E;
  --cyan:#2DE2E6;
  --orange:#FF8A3D;
  --coral:#FF6B57;
  --lime:#C6FF4A;
  --text:#F4F7FF;
  --muted:#A9B4C8;
  --faint:#6F7B91;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --glass:rgba(18,28,48,.62);
  --r-lg:16px;
  --r-md:12px;
  --r-sm:10px;
  --r-pill:999px;
  --shadow:0 10px 30px rgba(0,0,0,.35);
  --glow-cyan:0 0 24px rgba(45,226,230,.25);
  --glow-orange:0 0 24px rgba(255,138,61,.28);
  --container:1200px;
  --sec:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  background-image:
    radial-gradient(900px 420px at 12% -10%, rgba(45,226,230,.10), transparent 60%),
    radial-gradient(760px 380px at 92% 4%, rgba(255,138,61,.10), transparent 62%);
  background-repeat:no-repeat;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--cyan);text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:#7CF3F5;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{
  outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px;
}
h1,h2,h3,h4{color:var(--text);font-weight:800;line-height:1.3;margin:0;letter-spacing:.2px;}
p{margin:0 0 14px;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
::selection{background:rgba(45,226,230,.3);}

/* ---------- Foundation 覆盖 ---------- */
.grid-container{max-width:var(--container);padding-left:24px;padding-right:24px;margin:0 auto;}
.grid-container.full{max-width:100%;padding-left:0;padding-right:0;}
[class*="column"],[class*="cell"]{min-width:0;}
.button,button.button{
  background:linear-gradient(135deg,var(--orange),var(--coral));
  color:#fff;border:0;border-radius:var(--r-md);
  font-weight:700;padding:13px 26px;line-height:1.2;
  box-shadow:0 6px 18px rgba(255,107,87,.22);
  transition:transform .18s ease,box-shadow .2s ease,filter .2s ease;
}
.button:hover,button.button:hover{filter:brightness(1.08);box-shadow:var(--glow-orange);color:#fff;}
.button:active{transform:scale(.98);}
input,select,textarea{font-family:inherit;}
label{color:var(--muted);font-size:14px;font-weight:600;}

/* ---------- 顶部信息条 ---------- */
.topbar{
  background:rgba(6,10,20,.92);
  border-bottom:1px solid var(--line);
  font-size:13px;
  color:var(--muted);
}
.topbar-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;min-height:38px;padding-top:6px;padding-bottom:6px;
}
.topbar-left{display:flex;align-items:center;gap:10px;white-space:nowrap;overflow:hidden;}
.topbar-dot{width:7px;height:7px;border-radius:50%;background:var(--lime);box-shadow:0 0 10px rgba(198,255,74,.7);flex:0 0 auto;}
.topbar-left span{color:var(--faint);}
.topbar-right{display:flex;align-items:center;gap:18px;white-space:nowrap;}
.topbar-right a{color:var(--cyan);font-weight:600;}
.topbar-right a:hover{color:#8FF6F8;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--glass);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:border-color .25s ease,background .25s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--line-strong);background:rgba(9,14,26,.88);}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:70px;}
.brand{display:flex;align-items:center;gap:12px;color:var(--text);}
.brand:hover{color:var(--text);}
.brand-mark{
  width:38px;height:38px;border-radius:11px;flex:0 0 auto;position:relative;
  background:linear-gradient(140deg,rgba(45,226,230,.22),rgba(255,138,61,.22));
  border:1px solid rgba(45,226,230,.35);
  box-shadow:var(--glow-cyan);
  display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr);
  gap:3px;padding:8px;
}
.brand-mark i{background:var(--cyan);border-radius:2px;opacity:.9;}
.brand-mark i:nth-child(5){background:var(--orange);box-shadow:0 0 8px rgba(255,138,61,.8);}
.brand-mark i:nth-child(3),.brand-mark i:nth-child(7){background:var(--lime);}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:17px;font-weight:800;letter-spacing:.4px;}
.brand-sub{font-size:11px;color:var(--faint);letter-spacing:1.6px;text-transform:uppercase;}
.main-nav{display:flex;align-items:center;gap:6px;}
.nav-link{
  display:inline-block;padding:9px 14px;border-radius:var(--r-sm);
  color:var(--muted);font-size:15px;font-weight:600;position:relative;
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05);}
.nav-link.is-active{color:var(--cyan);}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--cyan),rgba(45,226,230,0));
  box-shadow:var(--glow-cyan);
}
.nav-cta{
  margin-left:10px;padding:10px 20px;border-radius:var(--r-md);
  background:linear-gradient(135deg,var(--orange),var(--coral));
  color:#fff;font-weight:700;font-size:15px;
  box-shadow:0 6px 16px rgba(255,107,87,.2);
}
.nav-cta:hover{color:#fff;filter:brightness(1.08);box-shadow:var(--glow-orange);}
.nav-toggle{
  display:none;background:transparent;border:1px solid var(--line-strong);color:var(--text);
  width:42px;height:38px;border-radius:var(--r-sm);cursor:pointer;font-size:16px;
}
.nav-toggle:hover{color:var(--cyan);}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sec) 0;}
.section.tight{padding:64px 0;}
.section.alt{background:linear-gradient(180deg,var(--bg-2),var(--bg));border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:14px;
  padding:5px 14px;border-radius:var(--r-pill);
  background:rgba(45,226,230,.10);border:1px solid rgba(45,226,230,.28);
  color:var(--cyan);font-size:13px;font-weight:700;letter-spacing:.6px;
}
.eyebrow.warm{background:rgba(255,138,61,.10);border-color:rgba(255,138,61,.30);color:var(--orange);}
.section-title{font-size:clamp(26px,3vw,40px);margin-bottom:14px;}
.section-desc{color:var(--muted);font-size:16px;margin:0;}
.divider-glow{height:1px;background:linear-gradient(90deg,transparent,rgba(45,226,230,.55),transparent);border:0;margin:0;}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:88px 0 72px;border-bottom:1px solid var(--line);}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.5;
}
.hero-overlay{
  position:absolute;inset:0;
  background:
    linear-gradient(100deg,rgba(7,11,20,.96) 0%,rgba(7,11,20,.82) 46%,rgba(7,11,20,.62) 100%),
    radial-gradient(700px 340px at 82% 24%, rgba(255,138,61,.18), transparent 62%);
}
.hero-grid-deco{
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.7),transparent 80%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.7),transparent 80%);
}
.hero .grid-container{position:relative;z-index:2;}
.hero-title{font-size:clamp(32px,4.5vw,56px);margin-bottom:18px;letter-spacing:.4px;}
.hero-title em{font-style:normal;color:var(--cyan);text-shadow:0 0 26px rgba(45,226,230,.35);}
.hero-sub{color:var(--muted);font-size:17px;max-width:600px;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.btn-primary,.btn-ghost,.btn-quiet{display:inline-flex;align-items:center;gap:9px;border-radius:var(--r-md);font-weight:700;font-size:16px;cursor:pointer;transition:all .2s ease;}
.btn-primary{
  padding:15px 30px;color:#fff;
  background:linear-gradient(135deg,var(--orange),var(--coral));
  box-shadow:0 8px 22px rgba(255,107,87,.24);
}
.btn-primary:hover{color:#fff;filter:brightness(1.08);box-shadow:var(--glow-orange);transform:translateY(-2px);}
.btn-ghost{
  padding:14px 28px;color:var(--cyan);background:transparent;
  border:1px solid rgba(45,226,230,.5);
}
.btn-ghost:hover{color:#fff;background:rgba(45,226,230,.12);box-shadow:var(--glow-cyan);transform:translateY(-2px);}
.btn-quiet{color:var(--muted);padding:12px 4px;border-bottom:1px dashed rgba(255,255,255,.2);border-radius:0;background:none;}
.btn-quiet:hover{color:var(--cyan);border-bottom-color:var(--cyan);}
.btn-primary:active,.btn-ghost:active{transform:scale(.98);}
.hero-points{display:flex;flex-wrap:wrap;gap:12px 26px;color:var(--muted);font-size:14px;}
.hero-points li{display:flex;align-items:center;gap:8px;}
.hero-points i{color:var(--lime);font-size:13px;}

.promo-card{
  position:relative;border-radius:var(--r-lg);padding:26px 24px 24px;
  background:var(--glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid rgba(255,138,61,.32);
  box-shadow:var(--shadow),0 0 34px rgba(255,138,61,.14);
}
.promo-tag{
  position:absolute;top:-13px;left:24px;
  padding:5px 14px;border-radius:var(--r-pill);font-size:12px;font-weight:800;letter-spacing:.6px;
  background:linear-gradient(135deg,var(--orange),var(--coral));color:#fff;
}
.promo-title{font-size:20px;margin:14px 0 6px;}
.promo-price{display:flex;align-items:baseline;gap:8px;margin-bottom:16px;}
.promo-price b{font-size:40px;font-weight:800;color:var(--orange);letter-spacing:-1px;line-height:1;}
.promo-price span{color:var(--faint);font-size:14px;}
.promo-list{display:grid;gap:10px;margin-bottom:18px;}
.promo-list li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--muted);}
.promo-list i{color:var(--cyan);margin-top:4px;font-size:12px;}
.promo-countdown{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  border-top:1px dashed var(--line-strong);padding-top:14px;margin-bottom:16px;
  font-size:13px;color:var(--faint);
}
.count-nums{display:flex;gap:6px;align-items:center;font-weight:700;color:var(--text);}
.count-nums b{
  display:inline-block;min-width:34px;text-align:center;padding:3px 6px;border-radius:8px;
  background:rgba(45,226,230,.12);border:1px solid rgba(45,226,230,.28);color:var(--cyan);
  font-variant-numeric:tabular-nums;
}
.promo-card .btn-primary{width:100%;justify-content:center;}

/* ---------- 信任指标条 ---------- */
.trust-bar{border-bottom:1px solid var(--line);background:var(--bg-2);}
.trust-inner{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:26px 0;}
.trust-item{display:flex;flex-direction:column;gap:2px;padding-left:16px;border-left:2px solid rgba(45,226,230,.35);}
.trust-item b{font-size:26px;font-weight:800;color:var(--text);font-variant-numeric:tabular-nums;}
.trust-item span{font-size:13px;color:var(--faint);}

/* ---------- 优惠阶梯 ---------- */
.ladder{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.ladder::before{
  content:"";position:absolute;top:16px;left:4%;right:4%;height:2px;
  background:linear-gradient(90deg,rgba(45,226,230,.5),rgba(255,138,61,.6),rgba(45,226,230,.2));
}
.tier{position:relative;padding-top:44px;}
.tier-node{
  position:absolute;top:8px;left:0;width:18px;height:18px;border-radius:50%;
  background:var(--bg);border:2px solid var(--cyan);box-shadow:var(--glow-cyan);
}
.tier-body{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px 20px;box-shadow:var(--shadow);height:100%;
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.tier-body:hover{transform:translateY(-4px);border-color:var(--line-strong);}
.tier.is-current .tier-node{background:var(--orange);border-color:var(--orange);box-shadow:var(--glow-orange);}
.tier.is-current .tier-body{border-color:rgba(255,138,61,.55);box-shadow:var(--shadow),var(--glow-orange);}
.tier-level{font-size:13px;color:var(--faint);letter-spacing:1px;font-weight:700;}
.tier-name{font-size:20px;margin:6px 0 10px;}
.tier-gate{font-size:14px;color:var(--orange);font-weight:700;margin-bottom:14px;}
.tier-list{display:grid;gap:8px;margin-bottom:18px;}
.tier-list li{font-size:14px;color:var(--muted);display:flex;gap:8px;}
.tier-list i{color:var(--cyan);font-size:11px;margin-top:6px;}
.tier .btn-ghost{width:100%;justify-content:center;padding:11px 18px;font-size:15px;}
.tier.is-current .btn-primary{width:100%;justify-content:center;padding:12px 18px;font-size:15px;}

/* ---------- 套餐对比 ---------- */
.compare-wrap{display:grid;grid-template-columns:330px 1fr;gap:28px;align-items:start;}
.plan-sticky{
  position:sticky;top:100px;
  background:var(--panel);border:1px solid rgba(255,138,61,.4);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--shadow),0 0 30px rgba(255,138,61,.12);
}
.plan-sticky .plan-cover{border-radius:14px;overflow:hidden;margin-bottom:18px;position:relative;}
.plan-cover img{width:100%;height:150px;object-fit:cover;}
.plan-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,11,20,.15),rgba(7,11,20,.75));}
.plan-cover span{
  position:absolute;left:12px;bottom:10px;z-index:2;
  padding:4px 12px;border-radius:var(--r-pill);font-size:12px;font-weight:800;
  background:rgba(255,138,61,.9);color:#04202a;
}
.plan-name{font-size:22px;margin-bottom:6px;}
.plan-price{font-size:15px;color:var(--muted);margin-bottom:16px;}
.plan-price b{font-size:32px;color:var(--orange);font-weight:800;font-variant-numeric:tabular-nums;}
.plan-sticky .btn-primary{width:100%;justify-content:center;}
.plan-note{font-size:13px;color:var(--faint);margin:12px 0 0;}

.matrix{background:var(--panel);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow);}
.matrix-head,.matrix-row{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;align-items:stretch;}
.matrix-head{background:var(--bg-3);border-bottom:1px solid var(--line);}
.matrix-head div{padding:16px 14px;font-size:14px;font-weight:800;color:var(--muted);border-left:1px solid var(--line);}
.matrix-head div:first-child{border-left:0;color:var(--text);}
.matrix-head div.is-hot{color:var(--orange);background:rgba(255,138,61,.08);}
.matrix-row{border-bottom:1px solid var(--line);}
.matrix-row:last-child{border-bottom:0;}
.matrix-row > div{padding:15px 14px;font-size:14px;color:var(--muted);border-left:1px solid var(--line);display:flex;align-items:center;gap:8px;}
.matrix-row > div:first-child{border-left:0;color:var(--text);font-weight:600;}
.matrix-row > div.is-hot{background:rgba(255,138,61,.05);color:#FFD9BC;}
.matrix-row i.fa-check{color:var(--lime);font-size:12px;}
.matrix-row i.fa-minus{color:var(--faint);font-size:12px;}
.chip{
  display:inline-block;padding:2px 10px;border-radius:var(--r-pill);font-size:12px;font-weight:700;
  background:rgba(45,226,230,.12);border:1px solid rgba(45,226,230,.28);color:var(--cyan);
}
.chip.warm{background:rgba(255,138,61,.12);border-color:rgba(255,138,61,.3);color:var(--orange);}
.matrix-scroll-hint{display:none;font-size:13px;color:var(--faint);margin-top:10px;}

/* ---------- 最新信息 ---------- */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:36px;}
.news-head .section-title{margin-bottom:8px;}
.news-more{font-weight:700;font-size:15px;display:inline-flex;align-items:center;gap:8px;white-space:nowrap;}
.news-card{
  height:100%;background:var(--panel);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.news-card:hover{transform:translateY(-4px);border-color:rgba(45,226,230,.38);box-shadow:var(--shadow),var(--glow-cyan);}
.news-cover{position:relative;display:block;overflow:hidden;}
.news-cover img{width:100%;height:190px;object-fit:cover;transition:transform .4s ease;}
.news-card.is-feature .news-cover img{height:280px;}
.news-card:hover .news-cover img{transform:scale(1.04);}
.news-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,11,20,.1),rgba(7,11,20,.72));}
.news-badge{
  position:absolute;top:12px;left:12px;z-index:2;
  padding:4px 12px;border-radius:var(--r-pill);font-size:12px;font-weight:700;
  background:rgba(45,226,230,.16);border:1px solid rgba(45,226,230,.4);color:var(--cyan);
  backdrop-filter:blur(6px);
}
.news-body{padding:18px 20px 22px;display:flex;flex-direction:column;flex:1;}
.news-title{font-size:18px;margin-bottom:10px;}
.news-card.is-feature .news-title{font-size:23px;}
.news-title a{color:var(--text);}
.news-title a:hover{color:var(--cyan);}
.news-summary{font-size:14px;color:var(--muted);margin-bottom:16px;flex:1;}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--faint);border-top:1px solid var(--line);padding-top:12px;}
.news-meta a{font-weight:700;}
.news-empty{
  border:1px dashed var(--line-strong);border-radius:var(--r-lg);
  padding:52px 24px;text-align:center;color:var(--faint);background:rgba(255,255,255,.02);
}
.news-empty i{font-size:26px;color:rgba(45,226,230,.5);display:block;margin-bottom:12px;}

/* ---------- 限时入口 ---------- */
.limit-bar{
  border-top:1px solid rgba(255,138,61,.35);
  border-bottom:1px solid rgba(255,138,61,.35);
  background:linear-gradient(100deg,rgba(255,138,61,.14),rgba(255,107,87,.06) 55%,rgba(45,226,230,.08));
}
.limit-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:22px 0;flex-wrap:wrap;}
.limit-left{display:flex;align-items:center;gap:18px;flex-wrap:wrap;}
.limit-flag{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(255,138,61,.18);border:1px solid rgba(255,138,61,.45);color:var(--orange);
  font-size:13px;font-weight:800;letter-spacing:.6px;
}
.limit-text b{color:var(--text);font-size:17px;display:block;}
.limit-text span{font-size:13px;color:var(--muted);}
.limit-nums{display:flex;gap:8px;align-items:center;font-weight:700;color:var(--text);font-size:14px;}
.limit-nums b{
  min-width:38px;text-align:center;padding:4px 8px;border-radius:8px;
  background:rgba(7,11,20,.7);border:1px solid rgba(255,138,61,.4);color:var(--orange);
  font-variant-numeric:tabular-nums;
}

/* ---------- 咨询表单 ---------- */
.consult-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:28px;align-items:start;}
.form-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:30px;box-shadow:var(--shadow);
}
.form-card h3{font-size:22px;margin-bottom:6px;}
.form-card > p{color:var(--muted);font-size:14px;margin-bottom:22px;}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{margin-bottom:16px;display:flex;flex-direction:column;gap:7px;}
.field label{font-size:14px;}
.field input,.field select,.field textarea{
  background:#0A1120;border:1px solid var(--line);border-radius:var(--r-sm);
  color:var(--text);padding:12px 14px;font-size:15px;width:100%;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:110px;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:#5C677C;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(45,226,230,.14),var(--glow-cyan);
}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,#7C879B 50%),linear-gradient(135deg,#7C879B 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat;}
.check-line{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--muted);margin:6px 0 20px;}
.check-line input{width:17px;height:17px;margin-top:3px;accent-color:var(--cyan);flex:0 0 auto;}
.form-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap;}
.form-actions .btn-primary{padding:14px 34px;}
.form-hint{font-size:13px;color:var(--faint);}
.form-msg{margin-top:16px;font-size:14px;border-radius:var(--r-sm);padding:0;transition:all .2s ease;}
.form-msg.is-ok{padding:12px 14px;background:rgba(198,255,74,.1);border:1px solid rgba(198,255,74,.35);color:var(--lime);}
.form-msg.is-err{padding:12px 14px;background:rgba(255,107,87,.1);border:1px solid rgba(255,107,87,.35);color:#FFB1A4;}

.trust-side{display:grid;gap:18px;}
.side-card{background:var(--bg-3);border:1px solid var(--line);border-radius:var(--r-lg);padding:22px;box-shadow:var(--shadow);}
.side-card h4{font-size:17px;margin-bottom:14px;display:flex;align-items:center;gap:10px;}
.side-card h4 i{color:var(--cyan);}
.step-list{display:grid;gap:14px;}
.step-list li{display:flex;gap:12px;font-size:14px;color:var(--muted);}
.step-num{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;display:grid;place-items:center;
  background:rgba(45,226,230,.12);border:1px solid rgba(45,226,230,.3);color:var(--cyan);
  font-size:13px;font-weight:800;
}
.contact-lines{display:grid;gap:10px;font-size:14px;color:var(--muted);}
.contact-lines div{display:flex;align-items:center;gap:10px;}
.contact-lines i{color:var(--orange);width:16px;text-align:center;}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;max-width:900px;margin:0 auto;}
.faq-item{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:rgba(45,226,230,.35);box-shadow:var(--glow-cyan);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 22px;font-size:16px;font-weight:700;
  display:flex;align-items:center;justify-content:space-between;gap:16px;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";font-size:22px;font-weight:400;color:var(--cyan);line-height:1;
  transition:transform .25s ease,color .25s ease;flex:0 0 auto;
}
.faq-item[open] summary::after{transform:rotate(45deg);color:var(--orange);}
.faq-item summary:hover{color:var(--cyan);}
.faq-answer{padding:0 22px 20px;color:var(--muted);font-size:15px;border-top:1px solid var(--line);margin-top:2px;padding-top:16px;}

/* ---------- 页脚 ---------- */
.site-footer{background:#050810;border-top:1px solid var(--line);position:relative;padding-top:64px;}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(45,226,230,.6),rgba(255,138,61,.5),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-brand .brand-mark{width:34px;height:34px;padding:7px;}
.footer-brand b{font-size:17px;}
.footer-about{font-size:14px;color:var(--faint);max-width:320px;}
.footer-col h5{font-size:15px;color:var(--text);margin:0 0 16px;font-weight:800;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{color:var(--muted);font-size:14px;}
.footer-col a:hover{color:var(--cyan);}
.footer-col p{font-size:14px;color:var(--muted);margin:0 0 10px;}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--faint);
}
.footer-bottom a{color:var(--faint);}
.footer-bottom a:hover{color:var(--cyan);}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1024px){
  :root{--sec:64px;}
  .ladder{grid-template-columns:repeat(2,1fr);row-gap:26px;}
  .ladder::before{display:none;}
  .compare-wrap{grid-template-columns:1fr;}
  .plan-sticky{position:static;}
  .consult-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .news-card.is-feature .news-cover img{height:230px;}
}
@media screen and (max-width:768px){
  .grid-container{padding-left:16px;padding-right:16px;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .main-nav{
    display:none;position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:4px;
    background:rgba(9,14,26,.97);border-bottom:1px solid var(--line-strong);
    padding:14px 16px 20px;backdrop-filter:blur(14px);
  }
  .main-nav.is-open{display:flex;}
  .nav-link{padding:12px 10px;font-size:16px;}
  .nav-link.is-active::after{left:10px;right:auto;width:26px;}
  .nav-cta{margin:10px 0 0;text-align:center;justify-content:center;display:flex;}
  .hero{padding:56px 0 48px;}
  .hero-sub{font-size:16px;}
  .trust-inner{grid-template-columns:1fr 1fr;gap:18px;padding:22px 0;}
  .trust-item b{font-size:22px;}
  .topbar-right a.topbar-hide{display:none;}
  .news-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .matrix-head,.matrix-row{grid-template-columns:1.3fr 1fr 1fr 1fr;min-width:640px;}
  .matrix{overflow-x:auto;}
  .matrix-scroll-hint{display:block;}
  .limit-inner{flex-direction:column;align-items:flex-start;gap:16px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
}
@media screen and (max-width:520px){
  :root{--sec:48px;}
  body{font-size:15px;}
  .hero-title{font-size:30px;}
  .ladder{grid-template-columns:1fr;}
  .field-row{grid-template-columns:1fr;}
  .form-card{padding:22px 18px;}
  .promo-price b{font-size:34px;}
  .limit-nums{font-size:13px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: article */
:root{
  --bg:#070B14;
  --bg-soft:#0B1020;
  --panel:#0E1526;
  --card:#111A2E;
  --cyan:#2DE2E6;
  --orange:#FF8A3D;
  --coral:#FF6B5B;
  --lime:#C6FF4A;
  --text:#F4F7FF;
  --muted:#A9B4C8;
  --faint:#6F7B91;
  --border:rgba(255,255,255,.10);
  --border-strong:rgba(255,255,255,.20);
  --glass:rgba(18,28,48,.62);
  --r-card:16px;
  --r-btn:12px;
  --r-input:10px;
  --r-img:14px;
  --shadow:0 10px 30px rgba(0,0,0,.35);
  --shadow-lg:0 24px 60px rgba(0,0,0,.45);
  --glow-cyan:0 0 24px rgba(45,226,230,.25);
  --glow-orange:0 0 24px rgba(255,138,61,.28);
  --sect:96px;
  --font:"PingFang SC","Microsoft YaHei","HarmonyOS Sans SC","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  --font-num:"DIN Alternate","Barlow","Inter","Segoe UI",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(760px 420px at 12% -6%, rgba(45,226,230,.12), transparent 62%),
    radial-gradient(680px 380px at 92% 4%, rgba(255,138,61,.10), transparent 60%),
    linear-gradient(180deg,#070B14 0%,#080D18 40%,#070B14 100%);
  pointer-events:none;
  z-index:0;
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);
  background-size:64px 64px;
  pointer-events:none;
  z-index:0;
  mask-image:radial-gradient(900px 600px at 50% 0%,#000 0%,transparent 78%);
  -webkit-mask-image:radial-gradient(900px 600px at 50% 0%,#000 0%,transparent 78%);
}
h1,h2,h3,h4,h5,h6{font-family:var(--font);color:var(--text);margin:0;line-height:1.3;font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;height:auto;display:block;border-radius:var(--r-img)}
a{color:var(--cyan);text-decoration:none;transition:color .2s ease,opacity .2s ease}
a:hover{color:#7CF3F5}
button{font-family:inherit}
.grid-container{max-width:1240px;margin:0 auto;padding-left:24px;padding-right:24px;position:relative;z-index:2}
.grid-container.full{max-width:100%;padding-left:0;padding-right:0}
.section{padding:var(--sect) 0}
.section-sm{padding:64px 0}
.section-head{max-width:760px;margin-bottom:44px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--cyan);font-weight:600;font-family:var(--font-num);
  padding:6px 14px;border:1px solid rgba(45,226,230,.35);border-radius:999px;
  background:rgba(45,226,230,.07);margin-bottom:16px;
}
.eyebrow.is-orange{color:var(--orange);border-color:rgba(255,138,61,.38);background:rgba(255,138,61,.08)}
.section-head h2{font-size:clamp(26px,3vw,40px);font-weight:800;letter-spacing:-.01em}
.section-head p{margin-top:14px;color:var(--muted);font-size:16px}

/* 顶部信息条 */
.topbar{
  height:38px;background:rgba(7,11,20,.94);
  border-bottom:1px solid var(--border);
  font-size:13px;color:var(--muted);position:relative;z-index:70;
}
.topbar .grid-container{height:100%;display:flex;align-items:center;justify-content:space-between;gap:16px}
.topbar-left{display:flex;align-items:center;gap:10px;white-space:nowrap}
.topbar-dot{width:7px;height:7px;border-radius:50%;background:var(--lime);box-shadow:0 0 10px rgba(198,255,74,.7);flex:none}
.topbar-left b{color:#DCE4F5;font-weight:600}
.topbar-right{display:flex;align-items:center;gap:18px;white-space:nowrap}
.topbar-right a{color:var(--cyan);font-weight:600}
.topbar-right a:hover{color:#fff}
.topbar-sep{width:1px;height:14px;background:var(--border-strong)}

/* 主导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--glass);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
  transition:border-color .25s ease,box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{border-bottom-color:rgba(45,226,230,.28);box-shadow:0 12px 34px rgba(0,0,0,.45);background:rgba(9,14,26,.86)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:74px}
.brand{display:inline-flex;align-items:center;gap:12px;color:var(--text)}
.brand:hover{color:var(--text)}
.brand-mark{display:grid;grid-template-columns:repeat(3,5px);grid-template-rows:repeat(3,5px);gap:3px;flex:none}
.brand-mark i{display:block;width:5px;height:5px;border-radius:50%;background:rgba(45,226,230,.65)}
.brand-mark i:nth-child(1),.brand-mark i:nth-child(9){background:rgba(45,226,230,.95);box-shadow:0 0 8px rgba(45,226,230,.45)}
.brand-mark i:nth-child(5){background:var(--orange);box-shadow:0 0 12px rgba(255,138,61,.8)}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:17px;font-weight:800;letter-spacing:.01em}
.brand-sub{font-family:var(--font-num);font-size:9.5px;letter-spacing:.22em;color:var(--faint);margin-top:2px}
.main-nav{display:flex;align-items:center;gap:6px}
.nav-link{
  position:relative;padding:9px 14px;border-radius:10px;
  color:var(--muted);font-size:15px;font-weight:500;transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:#fff;background:rgba(45,226,230,.08)}
.nav-link.is-active{color:#fff;font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--cyan),var(--orange));box-shadow:var(--glow-cyan);
}
.nav-cta{
  margin-left:10px;padding:10px 20px;border-radius:var(--r-btn);
  background:linear-gradient(135deg,var(--orange),var(--coral));
  color:#fff;font-weight:700;font-size:14.5px;box-shadow:var(--glow-orange);
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
}
.nav-cta:hover{color:#fff;filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 0 30px rgba(255,138,61,.42)}
.nav-cta:active{transform:scale(.98)}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:11px;
  border:1px solid var(--border-strong);background:rgba(17,26,46,.8);
  color:var(--text);font-size:17px;cursor:pointer;
  align-items:center;justify-content:center;
}
.nav-toggle:hover{border-color:rgba(45,226,230,.5);color:var(--cyan)}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-btn);font-size:15px;font-weight:700;
  cursor:pointer;border:1px solid transparent;transition:all .22s ease;line-height:1.2;
}
.btn-primary{background:linear-gradient(135deg,var(--orange),var(--coral));color:#fff;box-shadow:var(--glow-orange)}
.btn-primary:hover{color:#fff;filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 0 32px rgba(255,138,61,.45)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{background:transparent;border-color:rgba(45,226,230,.55);color:var(--cyan)}
.btn-ghost:hover{color:#fff;background:rgba(45,226,230,.12);box-shadow:var(--glow-cyan);transform:translateY(-2px)}
.btn-ghost:active{transform:scale(.98)}
.btn-line{background:rgba(17,26,46,.7);border-color:var(--border-strong);color:var(--text)}
.btn-line:hover{color:#fff;border-color:rgba(45,226,230,.5)}
.btn:focus-visible,.nav-link:focus-visible,.nav-toggle:focus-visible,a:focus-visible{
  outline:2px solid var(--cyan);outline-offset:2px;border-radius:8px;
}

/* 面包屑 */
.crumb-bar{padding:22px 0 6px}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--faint)}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--cyan)}
.crumb i{font-size:10px;color:var(--faint)}
.crumb .current{color:var(--cyan)}

/* 文章头部 */
.article-hero{
  position:relative;margin:18px 0 0;border-radius:20px;overflow:hidden;
  border:1px solid var(--border);box-shadow:var(--shadow-lg);
  background:#0A1020;
}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.34;
}
.article-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,20,.62) 0%,rgba(7,11,20,.86) 58%,rgba(7,11,20,.96) 100%);
}
.article-hero-inner{position:relative;z-index:3;padding:48px 46px 44px}
.article-badges{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:18px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:999px;font-size:12.5px;font-weight:600;
  border:1px solid rgba(45,226,230,.35);background:rgba(45,226,230,.10);color:#9AF6F8;
}
.badge.is-orange{border-color:rgba(255,138,61,.4);background:rgba(255,138,61,.12);color:#FFC39A}
.badge.is-plain{border-color:var(--border-strong);background:rgba(255,255,255,.05);color:var(--muted)}
.article-hero h1{
  font-size:clamp(28px,3.6vw,44px);font-weight:800;letter-spacing:-.015em;line-height:1.28;max-width:900px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;
  margin-top:22px;font-size:13.5px;color:var(--muted);
}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta i{color:var(--cyan);font-size:12.5px}
.article-meta .num{font-family:var(--font-num);color:#DCE4F5;font-weight:600}
.article-cover{margin-top:34px;position:relative;border-radius:16px;overflow:hidden;border:1px solid var(--border-strong)}
.article-cover img{width:100%;height:clamp(200px,32vw,380px);object-fit:cover;border-radius:0}
.article-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(7,11,20,.6) 100%)}

/* 布局 */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:44px;align-items:start}
.article-main{min-width:0}
.article-panel{
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);
  box-shadow:var(--shadow);padding:34px 36px;
}
.article-lead{
  padding:20px 22px;border-radius:14px;margin-bottom:32px;
  background:linear-gradient(135deg,rgba(45,226,230,.10),rgba(255,138,61,.07));
  border:1px solid rgba(45,226,230,.22);
  color:#DCE4F5;font-size:15.5px;line-height:1.85;
}
.article-lead b{color:#fff}

/* 正文排版 */
.prose{max-width:820px;font-size:16.5px;line-height:1.92;color:#DCE4F5}
.prose > * + *{margin-top:18px}
.prose h2{
  position:relative;padding-left:18px;margin-top:46px;
  font-size:clamp(22px,2.4vw,30px);font-weight:800;color:#fff;letter-spacing:-.01em;
}
.prose h2::before{
  content:"";position:absolute;left:0;top:7px;bottom:7px;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--cyan),var(--orange));box-shadow:var(--glow-cyan);
}
.prose h3{
  position:relative;padding-left:14px;margin-top:32px;
  font-size:20px;font-weight:700;color:#fff;
}
.prose h3::before{
  content:"";position:absolute;left:0;top:5px;bottom:5px;width:3px;border-radius:3px;background:var(--cyan);
}
.prose h4{font-size:17px;color:#fff;margin-top:26px}
.prose p{color:#D3DCF0}
.prose strong{color:#fff;font-weight:700}
.prose a{border-bottom:1px dashed rgba(45,226,230,.55)}
.prose ul{padding-left:2px}
.prose ul li{position:relative;padding-left:24px;margin:9px 0}
.prose ul li::before{
  content:"";position:absolute;left:5px;top:.72em;width:7px;height:7px;border-radius:2px;
  background:var(--cyan);transform:rotate(45deg);box-shadow:0 0 8px rgba(45,226,230,.5);
}
.prose ol{list-style:none;counter-reset:proseOl;padding-left:2px}
.prose ol li{position:relative;padding-left:34px;margin:10px 0;counter-increment:proseOl}
.prose ol li::before{
  content:counter(proseOl);position:absolute;left:0;top:.28em;
  width:22px;height:22px;border-radius:7px;display:flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-size:12px;font-weight:700;color:#04121A;
  background:linear-gradient(135deg,var(--cyan),#7CF3F5);
}
.prose blockquote{
  margin:28px 0;padding:16px 24px;border-left:4px solid var(--orange);
  background:rgba(255,138,61,.08);border-radius:0 12px 12px 0;color:#E9EFFB;font-size:15.5px;
}
.prose blockquote p{color:#E9EFFB}
.prose img{margin:26px 0;border-radius:14px;border:1px solid var(--border)}
.prose figure{margin:26px 0}
.prose figcaption{margin-top:10px;font-size:13px;color:var(--faint);text-align:center}
.prose table{width:100%;border-collapse:separate;border-spacing:0;margin:26px 0;font-size:14.5px;border:1px solid var(--border);border-radius:12px;overflow:hidden}
.prose thead th{background:rgba(45,226,230,.09);color:#fff;font-weight:700;text-align:left;padding:12px 16px;border-bottom:1px solid var(--border)}
.prose tbody td{padding:12px 16px;border-bottom:1px solid var(--border);color:var(--muted)}
.prose tbody tr:last-child td{border-bottom:none}
.prose tbody tr:hover td{background:rgba(255,255,255,.03);color:#DCE4F5}
.prose hr{border:none;height:1px;background:var(--border);margin:34px 0}
.prose code{font-family:var(--font-num);font-size:14px;padding:2px 7px;border-radius:6px;background:rgba(45,226,230,.10);color:#9AF6F8}

/* 空状态 */
.empty-state{
  text-align:center;padding:56px 24px;border-radius:var(--r-card);
  background:var(--card);border:1px dashed var(--border-strong);
}
.empty-state i{font-size:34px;color:var(--faint);margin-bottom:16px;display:block}
.empty-state h2{font-size:22px;margin-bottom:10px}
.empty-state p{color:var(--muted);margin-bottom:22px}

/* 侧栏 */
.article-side{position:sticky;top:100px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);
  box-shadow:var(--shadow);padding:22px;
}
.side-card h4{
  font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;
  display:flex;align-items:center;gap:9px;
}
.side-card h4::before{content:"";width:3px;height:15px;border-radius:3px;background:var(--cyan);box-shadow:var(--glow-cyan)}
.side-list li + li{margin-top:12px}
.side-list a{
  display:flex;gap:10px;align-items:flex-start;color:var(--muted);font-size:14.5px;line-height:1.6;
}
.side-list a:hover{color:var(--cyan)}
.side-list .idx{
  font-family:var(--font-num);font-size:12px;font-weight:700;color:var(--cyan);
  flex:none;margin-top:4px;opacity:.85;
}
.side-links li + li{margin-top:10px}
.side-links a{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:14.5px;color:var(--muted)}
.side-links a:hover{color:var(--cyan)}
.side-links a i{font-size:11px;color:var(--faint)}
.side-cta{
  background:linear-gradient(150deg,rgba(255,138,61,.16),rgba(17,26,46,.9));
  border-color:rgba(255,138,61,.32);
}
.side-cta p{color:var(--muted);font-size:14px;margin:8px 0 16px}
.side-cta .btn{width:100%}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;padding:6px 12px;border-radius:999px;font-size:12.5px;
  border:1px solid var(--border-strong);color:var(--muted);background:rgba(255,255,255,.04);
  transition:all .2s ease;
}
.tag:hover{color:var(--cyan);border-color:rgba(45,226,230,.5);background:rgba(45,226,230,.09)}

/* 上一篇 / 下一篇 */
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:40px}
.post-nav a{
  display:block;padding:18px 20px;border-radius:14px;
  background:var(--panel);border:1px solid var(--border);color:var(--muted);
  transition:all .22s ease;
}
.post-nav a:hover{border-color:rgba(45,226,230,.45);color:#fff;transform:translateY(-2px)}
.post-nav .k{display:block;font-size:12px;color:var(--faint);margin-bottom:6px;letter-spacing:.08em}
.post-nav .t{font-size:15px;font-weight:600;color:#E7EDFA;line-height:1.5}
.post-nav a:hover .t{color:#fff}
.post-nav .next{text-align:right}

/* 相关推荐 */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.post-card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--border);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.post-card:hover{transform:translateY(-5px);border-color:rgba(45,226,230,.4);box-shadow:0 20px 44px rgba(0,0,0,.5)}
.post-card .thumb{position:relative;overflow:hidden}
.post-card .thumb img{width:100%;height:180px;object-fit:cover;border-radius:0;transition:transform .4s ease}
.post-card:hover .thumb img{transform:scale(1.05)}
.post-card .thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 55%,rgba(7,11,20,.78) 100%)}
.post-card .body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1}
.post-card h3{font-size:17px;line-height:1.5;margin:12px 0 10px;color:#fff}
.post-card p{font-size:14px;color:var(--muted);line-height:1.7;flex:1}
.post-card .meta{margin-top:16px;font-size:12.5px;color:var(--faint);display:flex;align-items:center;gap:14px}
.post-card .meta i{color:var(--cyan);font-size:11.5px}

/* 咨询 CTA */
.cta-band{
  position:relative;border-radius:20px;overflow:hidden;border:1px solid rgba(45,226,230,.28);
  background:#0A1020;box-shadow:var(--shadow-lg);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;opacity:.26;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(7,11,20,.94),rgba(7,11,20,.72) 55%,rgba(255,138,61,.18));
}
.cta-inner{position:relative;z-index:3;padding:52px 48px;display:grid;grid-template-columns:1.35fr .85fr;gap:36px;align-items:center}
.cta-inner h2{font-size:clamp(24px,2.8vw,34px);font-weight:800}
.cta-inner p{color:var(--muted);margin-top:14px;font-size:15.5px;max-width:620px}
.cta-actions{display:flex;flex-direction:column;gap:12px}
.cta-actions .btn{width:100%}
.cta-note{font-size:12.5px;color:var(--faint);text-align:center}

/* 页脚 */
.site-footer{
  position:relative;margin-top:96px;padding-top:64px;
  background:linear-gradient(180deg,rgba(11,16,32,.6),rgba(7,11,20,.98));
  border-top:1px solid var(--border);
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(45,226,230,.75),rgba(255,138,61,.6),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.25fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand b{font-size:17px;font-weight:800}
.footer-about{color:var(--muted);font-size:14px;line-height:1.8;max-width:340px}
.footer-col h5{font-size:14px;color:#fff;margin-bottom:16px;font-weight:700;letter-spacing:.02em}
.footer-col ul li + li{margin-top:10px}
.footer-col ul a{color:var(--muted);font-size:14px}
.footer-col ul a:hover{color:var(--cyan)}
.footer-col p{color:var(--muted);font-size:14px;line-height:1.85}
.footer-col p + p{margin-top:6px}
.footer-bottom{
  margin-top:52px;padding:22px 0;border-top:1px solid var(--border);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--faint);
}
.footer-bottom a{color:var(--muted)}
.footer-bottom a:hover{color:var(--cyan)}

/* 响应式 */
@media (max-width:1024px){
  :root{--sect:64px}
  .grid-container{padding-left:20px;padding-right:20px}
  .nav-toggle{display:inline-flex}
  .main-nav{
    position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;gap:4px;
    padding:14px 20px 20px;background:rgba(9,14,26,.97);
    border-bottom:1px solid var(--border);box-shadow:0 24px 50px rgba(0,0,0,.55);
    display:none;
  }
  .main-nav.is-open{display:flex}
  .nav-link{padding:12px 14px;border-radius:10px}
  .nav-link.is-active::after{left:14px;right:auto;width:22px;bottom:8px}
  .nav-cta{margin-left:0;margin-top:8px;justify-content:center;text-align:center}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:36px}
  .article-side{position:static}
  .article-hero-inner{padding:38px 28px 34px}
  .article-panel{padding:26px 24px}
  .cta-inner{grid-template-columns:1fr;padding:40px 30px;gap:26px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:640px){
  :root{--sect:48px}
  .grid-container{padding-left:16px;padding-right:16px}
  body{font-size:15px}
  .topbar{height:34px;font-size:12px}
  .topbar .grid-container{padding-left:12px;padding-right:12px}
  .topbar-left b,.topbar-sep,.topbar-right .hide-s{display:none}
  .nav-wrap{height:64px}
  .brand-name{font-size:15.5px}
  .brand-sub{font-size:8.5px;letter-spacing:.16em}
  .brand-mark{grid-template-columns:repeat(3,4px);grid-template-rows:repeat(3,4px);gap:2.5px}
  .brand-mark i{width:4px;height:4px}
  .article-hero-inner{padding:28px 18px 26px}
  .article-hero h1{font-size:24px}
  .article-meta{gap:8px 16px;font-size:12.5px}
  .article-panel{padding:20px 16px}
  .article-lead{padding:16px 16px;font-size:14.5px}
  .prose{font-size:15.5px}
  .prose h2{margin-top:34px}
  .prose table{font-size:13px;display:block;overflow-x:auto;white-space:nowrap}
  .post-nav{grid-template-columns:1fr}
  .post-nav .next{text-align:left}
  .card-grid{grid-template-columns:1fr}
  .cta-inner{padding:32px 20px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start;text-align:left}
  .section-head{margin-bottom:30px}
}

/* roulang page: category1 */
:root{
  --bg:#070B14;
  --bg-2:#0B1020;
  --bg-3:#0E1526;
  --panel:#111A2E;
  --panel-2:#16203A;
  --cyan:#2DE2E6;
  --orange:#FF8A3D;
  --orange-deep:#FF6B4A;
  --lime:#C6FF4A;
  --text:#F4F7FF;
  --muted:#A9B4C8;
  --dim:#6F7B91;
  --border:rgba(255,255,255,.10);
  --border-strong:rgba(255,255,255,.18);
  --glass:rgba(18,28,48,.62);
  --r-lg:16px;
  --r-md:12px;
  --r-sm:10px;
  --shadow:0 10px 30px rgba(0,0,0,.35);
  --shadow-soft:0 4px 16px rgba(0,0,0,.28);
  --glow-cyan:0 0 24px rgba(45,226,230,.25);
  --glow-orange:0 0 24px rgba(255,138,61,.28);
  --maxw:1240px;
  --pad-d:96px;
  --pad-t:64px;
  --pad-m:48px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  letter-spacing:.01em;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(900px 520px at 12% -8%, rgba(45,226,230,.10), transparent 62%),
    radial-gradient(760px 460px at 92% 4%, rgba(255,138,61,.10), transparent 60%),
    linear-gradient(180deg,#070B14 0%,#080D19 45%,#070B14 100%);
  z-index:-2;
  pointer-events:none;
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.028) 1px, transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(1000px 600px at 50% 0%, rgba(0,0,0,.55), transparent 78%);
  -webkit-mask-image:radial-gradient(1000px 600px at 50% 0%, rgba(0,0,0,.55), transparent 78%);
  z-index:-1;
  pointer-events:none;
}
h1,h2,h3,h4,h5{margin:0;font-weight:800;line-height:1.25;letter-spacing:.005em;}
p{margin:0;}
a{color:var(--cyan);text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:var(--orange);}
img{max-width:100%;display:block;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;}
strong{font-weight:700;color:#fff;}
::selection{background:rgba(45,226,230,.28);color:#fff;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px;}

/* ---------- 容器 ---------- */
.grid-container{
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
.section{padding:var(--pad-d) 0;position:relative;}
.section--tight{padding:64px 0;}
.section--alt{background:linear-gradient(180deg,rgba(11,16,32,.85),rgba(7,11,20,0));}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(9,14,26,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
  transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{
  background:rgba(7,11,20,.9);
  border-bottom-color:var(--border-strong);
  box-shadow:0 12px 32px rgba(0,0,0,.42);
}
.nav-wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:74px;
}
.brand{display:flex;align-items:center;gap:12px;color:var(--text);}
.brand:hover{color:var(--text);}
.brand-mark{
  display:grid;
  grid-template-columns:repeat(3,5px);
  grid-template-rows:repeat(3,5px);
  gap:3px;
  padding:7px;
  border-radius:10px;
  background:rgba(45,226,230,.07);
  border:1px solid rgba(45,226,230,.22);
  flex:0 0 auto;
}
.brand-mark i{display:block;border-radius:50%;background:rgba(45,226,230,.45);}
.brand-mark i:nth-child(1),.brand-mark i:nth-child(3),.brand-mark i:nth-child(7),.brand-mark i:nth-child(9){background:rgba(255,138,61,.75);}
.brand-mark i:nth-child(5){background:var(--lime);box-shadow:0 0 8px rgba(198,255,74,.5);}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:17px;font-weight:800;letter-spacing:.02em;}
.brand-sub{font-size:10px;letter-spacing:.22em;color:var(--dim);font-weight:600;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--border-strong);
  background:rgba(17,26,46,.7);
  color:var(--text);
  font-size:17px;
  transition:border-color .2s ease,color .2s ease;
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan);}
.main-nav{display:flex;align-items:center;gap:6px;}
.nav-link{
  position:relative;
  padding:10px 14px;
  border-radius:10px;
  color:var(--muted);
  font-size:15px;
  font-weight:600;
  white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--text);background:rgba(45,226,230,.08);}
.nav-link.is-active{color:var(--cyan);}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:2px;
  height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--cyan),rgba(45,226,230,.1));
  box-shadow:var(--glow-cyan);
}
.nav-cta{
  margin-left:10px;
  padding:11px 20px;
  border-radius:var(--r-md);
  font-size:15px;
  font-weight:700;
  color:#fff;
  background:linear-gradient(120deg,var(--orange),var(--orange-deep));
  box-shadow:var(--glow-orange);
  transition:transform .18s ease,filter .18s ease;
}
.nav-cta:hover{color:#fff;filter:brightness(1.08);transform:translateY(-1px);}
.nav-cta:active{transform:scale(.98);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 26px;
  border-radius:var(--r-md);
  border:1px solid transparent;
  font-size:15px;
  font-weight:700;
  line-height:1.2;
  cursor:pointer;
  transition:transform .18s ease,filter .18s ease,box-shadow .22s ease,border-color .2s ease,color .2s ease,background .2s ease;
}
.btn-primary{
  color:#fff;
  background:linear-gradient(120deg,var(--orange),var(--orange-deep));
  box-shadow:var(--glow-orange);
}
.btn-primary:hover{color:#fff;filter:brightness(1.08);transform:translateY(-2px);}
.btn-ghost{
  color:var(--cyan);
  background:rgba(45,226,230,.05);
  border-color:rgba(45,226,230,.45);
}
.btn-ghost:hover{color:#fff;background:rgba(45,226,230,.16);border-color:var(--cyan);box-shadow:var(--glow-cyan);}
.btn-quiet{color:var(--muted);padding:10px 4px;background:none;border:none;}
.btn-quiet:hover{color:var(--cyan);}
.btn-sm{padding:9px 18px;font-size:14px;border-radius:10px;}
.btn-block{width:100%;}
.btn:active{transform:scale(.98);}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;
  border-radius:999px;
  font-size:12.5px;font-weight:700;
  border:1px solid rgba(45,226,230,.35);
  background:rgba(45,226,230,.10);
  color:var(--cyan);
  white-space:nowrap;
}
.badge--orange{border-color:rgba(255,138,61,.4);background:rgba(255,138,61,.12);color:var(--orange);}
.badge--lime{border-color:rgba(198,255,74,.35);background:rgba(198,255,74,.10);color:var(--lime);}
.tag{
  display:inline-block;
  padding:4px 10px;
  border-radius:8px;
  font-size:12.5px;
  color:var(--muted);
  background:rgba(255,255,255,.05);
  border:1px solid var(--border);
}

/* ---------- 面包屑 ---------- */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--cyan);}
.crumb span.sep{color:var(--dim);}
.crumb .current{color:var(--cyan);font-weight:600;}

/* ---------- Banner ---------- */
.cat-banner{
  position:relative;
  padding:78px 0 74px;
  overflow:hidden;
  border-bottom:1px solid var(--border);
}
.cat-banner__bg{
  position:absolute;inset:0;
  background-image:linear-gradient(100deg,rgba(7,11,20,.94) 0%,rgba(7,11,20,.80) 46%,rgba(7,11,20,.58) 100%),
    url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  z-index:0;
}
.cat-banner__glow{
  position:absolute;
  width:520px;height:520px;
  right:-140px;top:-200px;
  background:radial-gradient(circle,rgba(255,138,61,.22),transparent 68%);
  filter:blur(10px);
  z-index:0;
}
.cat-banner .grid-container{position:relative;z-index:1;}
.cat-banner__inner{max-width:800px;display:flex;flex-direction:column;gap:20px;}
.cat-banner h1{
  font-size:clamp(32px,4.5vw,52px);
  line-height:1.16;
  letter-spacing:-.01em;
}
.cat-banner h1 .hl{
  background:linear-gradient(100deg,var(--cyan),#8ff5f7 60%);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.cat-banner__lead{color:var(--muted);font-size:16.5px;max-width:660px;}
.cat-banner__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:6px;}
.cat-banner__stats{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:14px;
  margin-top:34px;
  padding:20px 22px;
  border-radius:var(--r-lg);
  border:1px solid var(--border);
  background:var(--glass);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.stat b{display:block;font-size:23px;font-weight:700;color:#fff;letter-spacing:.01em;}
.stat b em{font-style:normal;font-size:14px;color:var(--cyan);margin-left:2px;}
.stat span{font-size:13px;color:var(--dim);}

/* ---------- 锚点导航 ---------- */
.anchor-bar{
  position:sticky;
  top:74px;
  z-index:60;
  background:rgba(9,14,26,.86);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
}
.anchor-bar__scroll{
  display:flex;
  align-items:center;
  gap:10px;
  padding:12px 0;
  overflow-x:auto;
  scrollbar-width:none;
}
.anchor-bar__scroll::-webkit-scrollbar{display:none;}
.anchor-link{
  padding:8px 16px;
  border-radius:999px;
  border:1px solid var(--border);
  background:rgba(255,255,255,.03);
  color:var(--muted);
  font-size:14px;
  font-weight:600;
  white-space:nowrap;
  transition:all .2s ease;
}
.anchor-link:hover{color:var(--cyan);border-color:rgba(45,226,230,.45);background:rgba(45,226,230,.08);}

/* ---------- 通用标题 ---------- */
.sec-head{max-width:720px;margin-bottom:44px;}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.sec-head h2{font-size:clamp(26px,3vw,38px);margin:14px 0 12px;}
.sec-head p{color:var(--muted);font-size:16px;}
.sec-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:.16em;
  color:var(--cyan);text-transform:uppercase;
}
.sec-head .eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--cyan);box-shadow:var(--glow-cyan);}

/* ---------- 套餐卡片 ---------- */
.plan-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:22px;
}
.plan-card{
  display:flex;
  flex-direction:column;
  border-radius:var(--r-lg);
  border:1px solid var(--border);
  background:var(--panel);
  box-shadow:var(--shadow);
  overflow:hidden;
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.plan-card:hover{transform:translateY(-4px);border-color:rgba(45,226,230,.38);box-shadow:0 16px 40px rgba(0,0,0,.45),var(--glow-cyan);}
.plan-card__media{position:relative;aspect-ratio:16/10;overflow:hidden;}
.plan-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.plan-card:hover .plan-card__media img{transform:scale(1.05);}
.plan-card__media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,20,.10) 0%,rgba(7,11,20,.82) 100%);
}
.plan-card__badge{position:absolute;left:14px;top:14px;z-index:2;}
.plan-card__body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.plan-card__body h3{font-size:19px;}
.plan-card__price{font-size:14px;color:var(--muted);}
.plan-card__price b{font-size:24px;color:#fff;font-weight:700;margin-right:4px;}
.plan-card__desc{font-size:14.5px;color:var(--muted);}
.check-list{display:flex;flex-direction:column;gap:9px;margin-top:2px;}
.check-list li{
  position:relative;
  padding-left:24px;
  font-size:14px;
  color:var(--muted);
}
.check-list li::before{
  content:"\f00c";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  position:absolute;
  left:0;top:1px;
  font-size:11px;
  color:var(--cyan);
}
.plan-card--rec{
  border-color:rgba(255,138,61,.55);
  background:linear-gradient(180deg,rgba(255,138,61,.10),rgba(17,26,46,.96) 42%);
  box-shadow:0 16px 44px rgba(0,0,0,.45),var(--glow-orange);
}
.plan-card--rec .check-list li::before{color:var(--orange);}

/* ---------- 优惠阶梯 ---------- */
.tier-track{
  position:relative;
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
  padding-top:8px;
}
.tier-track::before{
  content:"";
  position:absolute;
  top:34px;left:6%;right:6%;
  height:2px;
  background:linear-gradient(90deg,rgba(45,226,230,.15),rgba(45,226,230,.65),rgba(255,138,61,.85));
  z-index:0;
}
.tier-step{
  position:relative;
  z-index:1;
  display:flex;
  flex-direction:column;
  gap:14px;
  padding:0 4px;
}
.tier-node{
  width:44px;height:44px;
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;
  color:var(--cyan);
  background:#0C1424;
  border:2px solid rgba(45,226,230,.5);
  box-shadow:var(--glow-cyan);
}
.tier-step.is-current .tier-node{
  color:#fff;
  background:linear-gradient(130deg,var(--orange),var(--orange-deep));
  border-color:rgba(255,138,61,.9);
  box-shadow:var(--glow-orange);
}
.tier-card{
  flex:1;
  padding:20px;
  border-radius:var(--r-lg);
  border:1px solid var(--border);
  background:var(--panel);
  box-shadow:var(--shadow-soft);
  display:flex;flex-direction:column;gap:10px;
  transition:border-color .22s ease,transform .22s ease;
}
.tier-card:hover{border-color:rgba(45,226,230,.35);transform:translateY(-3px);}
.tier-step.is-current .tier-card{
  border-color:rgba(255,138,61,.5);
  background:linear-gradient(180deg,rgba(255,138,61,.08),rgba(17,26,46,.95));
}
.tier-card h3{font-size:18px;}
.tier-card .tier-threshold{font-size:13px;color:var(--dim);}
.tier-card p{font-size:14.5px;color:var(--muted);}
.tier-card .tier-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:2px;}
.tier-card .btn{margin-top:auto;}

/* ---------- 对比矩阵 ---------- */
.compare-layout{
  display:grid;
  grid-template-columns:300px minmax(0,1fr);
  gap:28px;
  align-items:start;
}
.compare-aside{
  position:sticky;
  top:150px;
  padding:24px;
  border-radius:var(--r-lg);
  border:1px solid rgba(255,138,61,.45);
  background:linear-gradient(180deg,rgba(255,138,61,.12),rgba(17,26,46,.96) 55%);
  box-shadow:0 16px 40px rgba(0,0,0,.42),var(--glow-orange);
}
.compare-aside h3{font-size:21px;margin:12px 0 8px;}
.compare-aside p{font-size:14.5px;color:var(--muted);margin-bottom:16px;}
.compare-aside .aside-list{display:flex;flex-direction:column;gap:10px;margin-bottom:20px;}
.compare-aside .aside-list li{font-size:14px;color:var(--muted);padding-left:18px;position:relative;}
.compare-aside .aside-list li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:50%;
  background:var(--orange);box-shadow:0 0 10px rgba(255,138,61,.7);
}
.matrix-scroll{overflow-x:auto;border-radius:var(--r-lg);border:1px solid var(--border);background:var(--panel);box-shadow:var(--shadow);}
.matrix{min-width:720px;display:flex;flex-direction:column;}
.matrix-row{
  display:grid;
  grid-template-columns:1.5fr repeat(4,1fr);
  border-bottom:1px solid var(--border);
}
.matrix-row:last-child{border-bottom:none;}
.matrix-row > div{padding:16px 14px;font-size:14.5px;color:var(--muted);}
.matrix-row--head > div{
  font-size:15px;
  font-weight:700;
  color:#fff;
  background:rgba(255,255,255,.035);
}
.matrix-row--head > div:first-child{color:var(--dim);font-weight:600;}
.matrix-cell-label{color:#fff;font-weight:600;background:rgba(255,255,255,.02);}
.matrix-row .col-rec{
  background:rgba(255,138,61,.075);
  color:#F7E9DD;
}
.matrix-row--head .col-rec{
  color:var(--orange);
  background:rgba(255,138,61,.16);
  box-shadow:inset 0 2px 0 var(--orange);
}
.matrix-row .yes{color:var(--cyan);font-weight:700;}
.matrix-row .col-rec .yes{color:var(--orange);}
.matrix-row .no{color:var(--dim);}
.matrix-note{font-size:13px;color:var(--dim);margin-top:14px;}

/* ---------- 场景双栏 ---------- */
.scene-layout{
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:48px;
  align-items:center;
}
.scene-media{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--border);
  box-shadow:var(--shadow);
  aspect-ratio:4/3;
}
.scene-media img{width:100%;height:100%;object-fit:cover;}
.scene-media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,20,.05),rgba(7,11,20,.72));
}
.scene-media figcaption{
  position:absolute;
  left:20px;bottom:18px;right:20px;
  z-index:2;
  font-size:13.5px;
  color:var(--muted);
}
.scene-list{display:flex;flex-direction:column;gap:18px;margin-top:22px;}
.scene-item{
  display:flex;
  gap:16px;
  padding:18px 20px;
  border-radius:var(--r-md);
  border:1px solid var(--border);
  background:rgba(17,26,46,.7);
  transition:border-color .2s ease,transform .2s ease;
}
.scene-item:hover{border-color:rgba(45,226,230,.35);transform:translateX(4px);}
.scene-item__idx{
  flex:0 0 auto;
  width:34px;height:34px;
  border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;
  color:var(--cyan);
  background:rgba(45,226,230,.10);
  border:1px solid rgba(45,226,230,.3);
}
.scene-item h3{font-size:17px;margin-bottom:6px;}
.scene-item p{font-size:14.5px;color:var(--muted);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto;}
.accordion{border:1px solid var(--border);border-radius:var(--r-lg);overflow:hidden;background:var(--panel);box-shadow:var(--shadow);}
.accordion-item{border-bottom:1px solid var(--border);}
.accordion-item:last-child{border-bottom:none;}
.accordion-title{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 22px;
  font-size:16.5px;
  font-weight:700;
  color:var(--text);
  background:transparent;
  border:none;
  transition:color .2s ease,background .2s ease;
}
.accordion-title:hover{color:var(--cyan);background:rgba(45,226,230,.05);}
.accordion-title::before{
  content:"\2b";
  order:2;
  font-size:18px;
  font-weight:600;
  color:var(--cyan);
  transition:transform .25s ease,color .2s ease;
  margin-left:12px;
}
.accordion-item.is-active .accordion-title{color:var(--cyan);}
.accordion-item.is-active .accordion-title::before{transform:rotate(45deg);color:var(--orange);}
.accordion-content{padding:0 22px 22px;color:var(--muted);font-size:15px;background:transparent;border:none;}
.accordion-content p{margin:0;}

/* ---------- 咨询表单 / CTA ---------- */
.consult-section{
  position:relative;
  border-top:1px solid var(--border);
  background:linear-gradient(180deg,rgba(11,16,32,.9),rgba(7,11,20,.4));
}
.consult-layout{
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:40px;
  align-items:start;
}
.panel{
  padding:28px;
  border-radius:var(--r-lg);
  border:1px solid var(--border);
  background:var(--panel);
  box-shadow:var(--shadow);
}
.panel h3{font-size:21px;margin-bottom:8px;}
.panel .panel-sub{font-size:14.5px;color:var(--muted);margin-bottom:22px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13.5px;color:var(--muted);margin-bottom:7px;font-weight:600;}
.field input[type="text"],
.field input[type="tel"],
.field select,
.field textarea{
  width:100%;
  padding:12px 14px;
  border-radius:var(--r-sm);
  border:1px solid var(--border);
  background:#0B1222;
  color:var(--text);
  font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field textarea{min-height:104px;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:var(--dim);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-color:var(--cyan);
  box-shadow:0 0 0 3px rgba(45,226,230,.14);
  background:#0C1526;
}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);background-position:calc(100% - 20px) 20px,calc(100% - 14px) 20px;background-size:6px 6px,6px 6px;background-repeat:no-repeat;}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.checkbox-line{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--muted);margin:6px 0 18px;}
.checkbox-line input{width:16px;height:16px;margin-top:3px;accent-color:var(--cyan);flex:0 0 auto;}
.form-msg{
  display:none;
  margin-top:14px;
  padding:12px 14px;
  border-radius:var(--r-sm);
  font-size:14px;
  border:1px solid rgba(45,226,230,.4);
  background:rgba(45,226,230,.10);
  color:var(--cyan);
}
.form-msg.is-visible{display:block;}
.trust-list{display:flex;flex-direction:column;gap:16px;margin-top:22px;}
.trust-item{display:flex;gap:14px;align-items:flex-start;}
.trust-item i{
  flex:0 0 auto;
  width:38px;height:38px;
  border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  font-size:15px;
  color:var(--cyan);
  background:rgba(45,226,230,.10);
  border:1px solid rgba(45,226,230,.28);
}
.trust-item h4{font-size:16px;margin-bottom:4px;}
.trust-item p{font-size:14px;color:var(--muted);}
.trust-panel__media{
  margin-top:22px;
  border-radius:var(--r-md);
  overflow:hidden;
  border:1px solid var(--border);
  position:relative;
  aspect-ratio:16/9;
}
.trust-panel__media img{width:100%;height:100%;object-fit:cover;}
.trust-panel__media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,11,20,.15),rgba(7,11,20,.7));}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:0;
  padding:64px 0 28px;
  background:linear-gradient(180deg,rgba(7,11,20,.6),#05080F 70%);
  border-top:1px solid var(--border);
}
.site-footer::before{
  content:"";
  position:absolute;left:0;right:0;top:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(45,226,230,.75),rgba(255,138,61,.6),transparent);
  box-shadow:0 0 18px rgba(45,226,230,.35);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.3fr;
  gap:36px;
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-brand b{font-size:17px;font-weight:800;}
.footer-about{font-size:14px;color:var(--muted);max-width:340px;}
.footer-col h5{font-size:15px;margin-bottom:16px;color:#fff;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:var(--muted);}
.footer-col a:hover{color:var(--cyan);}
.footer-col p{font-size:14px;color:var(--muted);margin-bottom:10px;}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-top:44px;
  padding-top:22px;
  border-top:1px solid var(--border);
  font-size:13px;
  color:var(--dim);
}
.footer-bottom a{color:var(--dim);}
.footer-bottom a:hover{color:var(--cyan);}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1024px){
  :root{--pad-d:64px;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .main-nav{
    position:absolute;
    left:16px;right:16px;
    top:calc(100% + 10px);
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    padding:14px;
    border-radius:var(--r-lg);
    border:1px solid var(--border-strong);
    background:rgba(9,14,26,.96);
    backdrop-filter:blur(16px);
    -webkit-backdrop-filter:blur(16px);
    box-shadow:0 24px 50px rgba(0,0,0,.5);
    display:none;
  }
  .main-nav.is-open{display:flex;}
  .nav-link{padding:12px 14px;}
  .nav-link.is-active::after{left:14px;right:auto;width:26px;}
  .nav-cta{margin:8px 0 0;text-align:center;}
  .nav-wrap{position:relative;}
  .plan-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .tier-track{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px 20px;}
  .tier-track::before{display:none;}
  .compare-layout{grid-template-columns:1fr;}
  .compare-aside{position:static;}
  .scene-layout{grid-template-columns:1fr;gap:32px;}
  .consult-layout{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .anchor-bar{top:74px;}
  .cat-banner__stats{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media screen and (max-width:640px){
  :root{--pad-d:48px;}
  body{font-size:15px;}
  .grid-container{padding-left:16px;padding-right:16px;}
  .brand-sub{display:none;}
  .brand-name{font-size:16px;}
  .cat-banner{padding:52px 0 50px;}
  .cat-banner__actions .btn{width:100%;}
  .cat-banner__stats{grid-template-columns:1fr 1fr;padding:16px;gap:16px;}
  .plan-grid{grid-template-columns:1fr;}
  .tier-track{grid-template-columns:1fr;}
  .grid-2{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .anchor-bar{top:66px;}
  .panel{padding:22px 18px;}
  .sec-head{margin-bottom:30px;}
  .matrix{min-width:640px;}
  .matrix-row > div{padding:13px 12px;font-size:13.5px;}
}

/* roulang page: category2 */
:root{
  --bg:#070B14;
  --bg-soft:#0B1020;
  --bg-alt:#0E1526;
  --panel:#111A2E;
  --cyan:#2DE2E6;
  --orange:#FF8A3D;
  --coral:#FF6B57;
  --lime:#C6FF4A;
  --text:#F4F7FF;
  --muted:#A9B4C8;
  --dim:#6F7B91;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.20);
  --glass:rgba(18,28,48,.62);
  --r-card:16px;
  --r-btn:12px;
  --r-pill:999px;
  --r-input:10px;
  --r-img:14px;
  --sh:0 10px 30px rgba(0,0,0,.35);
  --sh-soft:0 6px 18px rgba(0,0,0,.25);
  --glow-cyan:0 0 24px rgba(45,226,230,.25);
  --glow-orange:0 0 24px rgba(255,138,61,.28);
  --max:1240px;
}

*,*::before,*::after{box-sizing:border-box;}

html{scroll-behavior:smooth;}

body{
  margin:0;
  padding:0;
  background-color:var(--bg);
  background-image:
    radial-gradient(900px 500px at 12% -8%, rgba(45,226,230,.10), transparent 62%),
    radial-gradient(760px 460px at 92% 4%, rgba(255,138,61,.10), transparent 60%),
    linear-gradient(180deg,#070B14 0%,#080D18 100%);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}

img{max-width:100%;height:auto;display:block;border-radius:var(--r-img);}

a{color:var(--cyan);text-decoration:none;transition:color .22s ease,opacity .22s ease;}
a:hover{color:#7DF0F2;}
a:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px;}

h1,h2,h3,h4,h5{
  margin:0 0 .6em;
  color:var(--text);
  font-weight:800;
  line-height:1.28;
  letter-spacing:.01em;
}
h1{font-size:clamp(30px,4.2vw,50px);font-weight:800;}
h2{font-size:clamp(24px,2.9vw,38px);}
h3{font-size:20px;}
h4{font-size:17px;}
p{margin:0 0 1em;color:var(--muted);}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;}
li{list-style:none;}
button{font-family:inherit;}

.grid-container{max-width:var(--max);margin:0 auto;padding-left:24px;padding-right:24px;width:100%;}

.section{padding:96px 0;position:relative;}
.section--alt{background:linear-gradient(180deg,rgba(14,21,38,.72),rgba(7,11,20,.35));border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{margin-bottom:44px;max-width:760px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--cyan);font-weight:600;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:linear-gradient(90deg,var(--cyan),transparent);border-radius:2px;}
.section-head p{font-size:16.5px;color:var(--muted);}

/* 顶部信息条 */
.topbar{
  background:rgba(9,14,26,.92);
  border-bottom:1px solid var(--line);
  font-size:13.5px;
  color:var(--muted);
  position:relative;
  z-index:60;
}
.topbar-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;min-height:38px;flex-wrap:nowrap;
}
.topbar-note{display:inline-flex;align-items:center;gap:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar-note i{color:var(--cyan);font-size:12px;}
.topbar-links{display:flex;align-items:center;gap:18px;white-space:nowrap;}
.topbar-links a{color:var(--muted);font-size:13.5px;}
.topbar-links a:hover{color:var(--cyan);}
.topbar-links a.topbar-cta{color:var(--orange);font-weight:600;}

/* 主导航 */
.site-header{
  position:sticky;top:0;z-index:80;
  background:var(--glass);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:border-color .25s ease,background .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--line-strong);box-shadow:0 10px 30px rgba(0,0,0,.42);}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:72px;}

.brand{display:inline-flex;align-items:center;gap:12px;color:var(--text);}
.brand:hover{color:var(--text);}
.brand-mark{
  width:36px;height:36px;flex:0 0 36px;
  display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr);
  gap:3px;padding:5px;border-radius:11px;
  background:linear-gradient(145deg,rgba(45,226,230,.18),rgba(255,138,61,.14));
  border:1px solid var(--line-strong);
  box-shadow:var(--glow-cyan);
}
.brand-mark i{display:block;border-radius:2px;background:var(--cyan);opacity:.85;}
.brand-mark i:nth-child(2),
.brand-mark i:nth-child(4),
.brand-mark i:nth-child(9){background:var(--orange);opacity:.95;}
.brand-mark i:nth-child(5){background:var(--lime);}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:17px;font-weight:800;letter-spacing:.02em;}
.brand-sub{font-size:9.5px;letter-spacing:.22em;color:var(--dim);font-weight:600;}

.nav-toggle{
  display:none;width:44px;height:40px;border-radius:var(--r-btn);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  color:var(--text);font-size:17px;cursor:pointer;align-items:center;justify-content:center;
}
.nav-toggle:active{transform:scale(.97);}

.main-nav{display:flex;align-items:center;gap:6px;}
.nav-link{
  position:relative;padding:9px 14px;border-radius:var(--r-btn);
  color:var(--muted);font-size:15px;font-weight:500;white-space:nowrap;
  transition:color .22s ease,background .22s ease;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05);}
.nav-link.is-active{color:var(--cyan);}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  border-radius:2px;background:linear-gradient(90deg,var(--cyan),rgba(45,226,230,.15));
  box-shadow:var(--glow-cyan);
}
.nav-cta{
  margin-left:10px;padding:9px 20px;border-radius:var(--r-btn);
  background:linear-gradient(135deg,var(--orange),var(--coral));
  color:#fff;font-size:14.5px;font-weight:700;white-space:nowrap;
  box-shadow:0 6px 18px rgba(255,107,87,.24);
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
}
.nav-cta:hover{color:#fff;filter:brightness(1.08);box-shadow:var(--glow-orange);transform:translateY(-1px);}
.nav-cta:active{transform:scale(.98);}

/* 面包屑 */
.breadcrumb{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  font-size:13.5px;color:var(--dim);padding-top:22px;
}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--cyan);}
.breadcrumb span.sep{color:var(--dim);opacity:.6;}
.breadcrumb .current{color:var(--cyan);font-weight:600;}

/* 窄 Banner */
.cat-hero{
  position:relative;
  padding:0 0 66px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(100deg,rgba(7,11,20,.96) 0%,rgba(7,11,20,.82) 46%,rgba(7,11,20,.58) 100%),
                   url("/assets/images/coverpic/cover-3.webp");
  background-size:cover;
  background-position:center;
  z-index:0;
}
.cat-hero::after{
  content:"";position:absolute;inset:auto 0 0 0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(45,226,230,.5),transparent);
  z-index:1;
}
.cat-hero .grid-container{position:relative;z-index:2;}
.cat-hero-body{max-width:780px;padding-top:40px;}
.cat-hero h1{margin-bottom:18px;}
.cat-hero h1 em{font-style:normal;color:var(--cyan);}
.cat-hero .lead{font-size:17px;color:var(--muted);max-width:660px;}

.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 14px;border-radius:var(--r-pill);
  background:rgba(45,226,230,.08);
  border:1px solid rgba(45,226,230,.28);
  color:#CFFBFC;font-size:13px;font-weight:500;
}
.tag--orange{background:rgba(255,138,61,.09);border-color:rgba(255,138,61,.30);color:#FFD2B2;}
.tag i{font-size:11px;}

/* 锚点导航 */
.anchor-bar{
  position:sticky;top:72px;z-index:50;
  background:rgba(11,16,32,.86);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.anchor-scroll{display:flex;gap:10px;overflow-x:auto;padding:12px 0;scrollbar-width:none;}
.anchor-scroll::-webkit-scrollbar{display:none;}
.anchor-scroll a{
  flex:0 0 auto;
  padding:8px 16px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  color:var(--muted);font-size:14px;white-space:nowrap;
  transition:all .22s ease;
}
.anchor-scroll a:hover{color:var(--cyan);border-color:rgba(45,226,230,.45);background:rgba(45,226,230,.08);}

/* 通用卡片 */
.card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh);
  overflow:hidden;
  transition:transform .26s ease,border-color .26s ease,box-shadow .26s ease;
}
.card:hover{transform:translateY(-4px);border-color:rgba(45,226,230,.32);box-shadow:0 16px 40px rgba(0,0,0,.46);}

.topic-card{display:flex;flex-direction:column;height:100%;}
.topic-card .topic-media{position:relative;aspect-ratio:16/9;overflow:hidden;}
.topic-card .topic-media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .5s ease;}
.topic-card:hover .topic-media img{transform:scale(1.05);}
.topic-card .topic-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,20,.06),rgba(17,26,46,.86));
}
.badge{
  position:absolute;left:14px;top:14px;z-index:2;
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;
  background:rgba(45,226,230,.16);
  border:1px solid rgba(45,226,230,.42);
  color:#D9FDFE;
  backdrop-filter:blur(6px);
}
.badge--orange{background:rgba(255,138,61,.16);border-color:rgba(255,138,61,.44);color:#FFD8BC;}
.badge--lime{background:rgba(198,255,74,.14);border-color:rgba(198,255,74,.40);color:#E6FFB0;}
.topic-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1;}
.topic-body h3{font-size:18px;margin-bottom:10px;}
.topic-body p{font-size:14.8px;color:var(--muted);margin-bottom:18px;}
.topic-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  gap:12px;font-size:13px;color:var(--dim);
  border-top:1px solid var(--line);padding-top:14px;
}
.topic-meta .link{color:var(--cyan);font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.topic-card:hover .topic-meta .link i{transform:translateX(3px);}
.topic-meta .link i{transition:transform .22s ease;font-size:11px;}

/* 流程步骤 */
.steps{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.step{
  position:relative;
  background:linear-gradient(160deg,rgba(17,26,46,.94),rgba(11,16,32,.94));
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:28px 22px 26px;
  box-shadow:var(--sh-soft);
  transition:border-color .26s ease,transform .26s ease,box-shadow .26s ease;
}
.step:hover{transform:translateY(-4px);border-color:rgba(45,226,230,.34);box-shadow:0 14px 34px rgba(0,0,0,.42);}
.step-no{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:12px;
  font-size:15px;font-weight:700;color:#04121A;
  background:linear-gradient(140deg,var(--cyan),#8BF3F5);
  box-shadow:var(--glow-cyan);
  margin-bottom:16px;
}
.step.is-current .step-no{background:linear-gradient(140deg,var(--orange),var(--coral));color:#fff;box-shadow:var(--glow-orange);}
.step h3{font-size:17px;margin-bottom:8px;}
.step p{font-size:14.6px;color:var(--muted);}
.step-line{
  position:absolute;top:48px;left:0;right:0;height:2px;
  background:linear-gradient(90deg,rgba(45,226,230,.45),rgba(255,138,61,.35));
  opacity:.35;z-index:0;pointer-events:none;
}

/* 帮助主题网格 */
.topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}

/* FAQ */
.faq-list{border-top:1px solid var(--line);}
.faq-list .accordion-item{
  background:transparent !important;
  border-bottom:1px solid var(--line);
}
.faq-list .accordion-title{
  display:flex !important;align-items:center;justify-content:space-between;gap:16px;
  background:transparent !important;
  border:0 !important;
  color:var(--text) !important;
  font-size:17px;font-weight:600;
  padding:22px 4px !important;
  transition:color .22s ease;
}
.faq-list .accordion-title:hover{color:var(--cyan) !important;}
.faq-list .accordion-title::before{
  content:"\f067";
  font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:12px;color:var(--cyan);
  order:2;
  display:inline-flex;align-items:center;justify-content:center;
  width:28px;height:28px;border-radius:50%;
  background:rgba(45,226,230,.09);
  border:1px solid rgba(45,226,230,.30);
  transition:transform .28s ease,background .28s ease;
  flex:0 0 28px;
}
.faq-list .accordion-item.is-active .accordion-title::before{transform:rotate(45deg);background:rgba(255,138,61,.14);border-color:rgba(255,138,61,.42);color:var(--orange);}
.faq-list .accordion-content{
  background:transparent !important;
  border:0 !important;
  padding:0 4px 24px !important;
  color:var(--muted) !important;
  font-size:15.4px;
}
.faq-list .accordion-content p{color:var(--muted);margin-bottom:0;}

/* CTA */
.cta-panel{
  position:relative;overflow:hidden;
  border-radius:22px;
  border:1px solid var(--line-strong);
  background-image:linear-gradient(110deg,rgba(11,16,32,.94),rgba(14,21,38,.80)),
                   url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  padding:56px 48px;
  box-shadow:var(--sh);
}
.cta-panel::before{
  content:"";position:absolute;top:-120px;right:-90px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,138,61,.26),transparent 68%);
}
.cta-panel .cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:start;}
.cta-copy h2{margin-bottom:14px;}
.cta-copy p{color:var(--muted);max-width:520px;}
.cta-points{margin-top:24px;display:grid;gap:12px;}
.cta-points li{display:flex;gap:12px;align-items:flex-start;color:var(--muted);font-size:15px;}
.cta-points i{color:var(--cyan);margin-top:5px;font-size:13px;}

/* 表单 */
.form-card{
  background:rgba(17,26,46,.92);
  border:1px solid var(--line-strong);
  border-radius:var(--r-card);
  padding:30px 26px;
  box-shadow:var(--sh);
}
.form-card h3{font-size:19px;margin-bottom:6px;}
.form-card .form-hint{font-size:13.5px;color:var(--dim);margin-bottom:20px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13.5px;color:var(--muted);margin-bottom:7px;font-weight:500;}
.field label .req{color:var(--orange);}
.field input[type="text"],
.field input[type="tel"],
.field select,
.field textarea{
  width:100%;
  background:rgba(7,11,20,.86);
  border:1px solid var(--line);
  border-radius:var(--r-input);
  color:var(--text);
  font-size:15px;
  padding:12px 14px;
  font-family:inherit;
  transition:border-color .22s ease,box-shadow .22s ease,background .22s ease;
}
.field textarea{min-height:104px;resize:vertical;}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);background-position:calc(100% - 20px) 20px,calc(100% - 14px) 20px;background-size:6px 6px,6px 6px;background-repeat:no-repeat;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--cyan);background:rgba(7,11,20,.95);
  box-shadow:0 0 0 3px rgba(45,226,230,.14),var(--glow-cyan);
}
.field input::placeholder,.field textarea::placeholder{color:var(--dim);}
.check-row{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--muted);margin-bottom:20px;}
.check-row input{margin-top:5px;accent-color:var(--cyan);width:15px;height:15px;}
.form-msg{display:none;margin-top:16px;padding:12px 14px;border-radius:var(--r-input);font-size:14px;}
.form-msg.is-ok{display:block;background:rgba(45,226,230,.10);border:1px solid rgba(45,226,230,.36);color:#CFFBFC;}
.form-msg.is-err{display:block;background:rgba(255,138,61,.10);border:1px solid rgba(255,138,61,.38);color:#FFD8BC;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;cursor:pointer;border:1px solid transparent;
  transition:transform .2s ease,box-shadow .22s ease,filter .22s ease,background .22s ease,color .22s ease;
  text-align:center;line-height:1.3;
}
.btn-primary{
  background:linear-gradient(135deg,var(--orange),var(--coral));
  color:#fff;box-shadow:0 8px 22px rgba(255,107,87,.26);
}
.btn-primary:hover{color:#fff;filter:brightness(1.07);box-shadow:var(--glow-orange);transform:translateY(-2px);}
.btn-ghost{
  background:transparent;color:var(--cyan);
  border-color:rgba(45,226,230,.52);
}
.btn-ghost:hover{color:#CFFBFC;background:rgba(45,226,230,.10);box-shadow:var(--glow-cyan);transform:translateY(-2px);}
.btn-text{background:transparent;color:var(--cyan);padding:8px 4px;font-weight:600;}
.btn-text:hover{color:#7DF0F2;}
.btn:active{transform:scale(.98);}
.btn:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;}
.btn-block{width:100%;}
.btn-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}

/* 信任数据条 */
.stat-strip{
  margin-top:38px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
  border-top:1px solid var(--line);padding-top:26px;
}
.stat-strip .stat b{display:block;font-size:26px;font-weight:700;color:var(--cyan);letter-spacing:.01em;}
.stat-strip .stat span{font-size:13.5px;color:var(--dim);}
.stat-strip .stat b.orange{color:var(--orange);}

/* 支持信息列 */
.support-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:8px;}
.support-item{
  background:rgba(17,26,46,.72);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px 22px;
}
.support-item i{color:var(--cyan);font-size:18px;margin-bottom:12px;display:block;}
.support-item h4{font-size:16.5px;margin-bottom:8px;}
.support-item p{font-size:14.6px;color:var(--muted);}

/* 页脚 */
.site-footer{
  position:relative;
  background:linear-gradient(180deg,#080D18,#05080F);
  border-top:1px solid var(--line);
  padding:72px 0 30px;
  margin-top:0;
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(45,226,230,.55),rgba(255,138,61,.4),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:38px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-brand b{font-size:17px;font-weight:800;}
.footer-about{font-size:14.5px;color:var(--muted);max-width:340px;}
.footer-col h5{font-size:15px;margin-bottom:16px;color:var(--text);font-weight:700;}
.footer-col ul{display:grid;gap:10px;}
.footer-col li a{color:var(--muted);font-size:14.5px;}
.footer-col li a:hover{color:var(--cyan);}
.footer-col p{font-size:14.5px;color:var(--muted);margin-bottom:9px;}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:var(--dim);
}
.footer-bottom a{color:var(--dim);}
.footer-bottom a:hover{color:var(--cyan);}

/* 响应式 */
@media screen and (max-width:1024px){
  .section{padding:64px 0;}
  .topic-grid{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);gap:18px;}
  .step-line{display:none;}
  .cta-panel{padding:44px 30px;}
  .cta-panel .cta-inner{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .support-grid{grid-template-columns:1fr;}
  .stat-strip{grid-template-columns:repeat(2,1fr);}
  .anchor-bar{top:64px;}
  .nav-wrap{min-height:64px;}
}

@media screen and (max-width:860px){
  .nav-toggle{display:inline-flex;}
  .main-nav{
    position:absolute;left:0;right:0;top:100%;
    flex-direction:column;align-items:stretch;gap:4px;
    background:rgba(9,14,26,.98);
    border-bottom:1px solid var(--line-strong);
    padding:14px 20px 22px;
    display:none;
  }
  .main-nav.is-open{display:flex;}
  .nav-link{padding:12px 12px;}
  .nav-link.is-active::after{left:12px;right:auto;width:26px;bottom:8px;}
  .nav-cta{margin:10px 0 0;justify-content:center;text-align:center;}
}

@media screen and (max-width:640px){
  .grid-container{padding-left:16px;padding-right:16px;}
  body{font-size:15.5px;}
  .section{padding:48px 0;}
  .topbar-inner{justify-content:flex-start;gap:14px;overflow-x:auto;scrollbar-width:none;min-height:36px;}
  .topbar-inner::-webkit-scrollbar{display:none;}
  .topbar-note{font-size:13px;}
  .topbar-links a:not(.topbar-cta){display:none;}
  .brand-name{font-size:15.5px;}
  .brand-sub{display:none;}
  .cat-hero{padding-bottom:48px;}
  .cat-hero-body{padding-top:26px;}
  .cat-hero .lead{font-size:15.5px;}
  .anchor-bar{top:60px;}
  .topic-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .cta-panel{padding:32px 20px;border-radius:18px;}
  .form-card{padding:24px 18px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .btn{width:100%;}
  .btn-row{gap:12px;}
  .stat-strip{grid-template-columns:1fr 1fr;gap:14px;}
  .stat-strip .stat b{font-size:22px;}
  .faq-list .accordion-title{font-size:15.8px;}
}