/* roulang page: index */
:root{
  --bs-primary-rgb:45,125,255;
  --bs-body-bg:#06182E;
  --bs-body-color:#E8EFF8;
  --bs-border-radius:16px;
  --bs-link-color:#2D7DFF;
  --bs-link-hover-color:#12D6C0;

  --bg:#06182E;
  --bg-deep:#04101F;
  --bg-card:#0B2137;
  --glass:rgba(255,255,255,.05);
  --glass-strong:rgba(255,255,255,.08);
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.06);
  --blue:#2D7DFF;
  --orange:#FF6A2B;
  --cyan:#12D6C0;
  --mist:#F4F7FB;
  --ink:#0E1A2B;
  --ink-2:#5A6B82;
  --r-card:16px;
  --r-btn:12px;
  --r-pill:999px;
  --sh-card:0 18px 44px rgba(0,0,0,.38);
  --sh-light:0 12px 30px rgba(16,34,64,.10);
  --sec-y:100px;
  --sec-y-m:60px;
  --ease:180ms ease-out;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:#E8EFF8;
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--blue);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--cyan);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px;}
::selection{background:rgba(45,125,255,.35);}

.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 22px;}
.wrap-wide{max-width:1320px;}
.sec{padding:var(--sec-y) 0;position:relative;}
.sec-mist{background:var(--mist);color:var(--ink);}
.sec-mist .sec-sub,.sec-mist .muted{color:var(--ink-2);}
.sec-deep{background:var(--bg-deep);}
.grid-lines::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  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:radial-gradient(ellipse at 50% 0%,#000 0%,transparent 78%);
}

.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;flex-wrap:wrap;}
.sec-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.14em;color:var(--cyan);
  background:rgba(18,214,192,.08);border:1px solid rgba(18,214,192,.22);
  padding:5px 14px;border-radius:var(--r-pill);margin-bottom:16px;
}
.sec-tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan);}
.sec-mist .sec-tag{color:#0A8E82;background:rgba(18,214,192,.12);border-color:rgba(18,214,192,.3);}
h2.sec-title{font-size:clamp(24px,2.6vw,32px);line-height:1.35;font-weight:700;letter-spacing:-.3px;}
.sec-sub{color:#9FB2C9;font-size:15.5px;max-width:640px;margin-top:12px;line-height:1.8;}
.sec-mist .sec-sub{color:var(--ink-2);}

/* ---------- buttons ---------- */
.btn-glow,.btn-line,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  min-height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15.5px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease);
  white-space:nowrap;
}
.btn-glow{background:var(--orange);color:#fff;box-shadow:0 10px 26px rgba(255,106,43,.28);}
.btn-glow:hover,.btn-glow:focus{color:#fff;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(255,106,43,.65),0 14px 34px rgba(255,106,43,.42);}
.btn-line{background:transparent;color:#DCE8F7;border-color:rgba(45,125,255,.65);}
.btn-line:hover,.btn-line:focus{color:#fff;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(45,125,255,.6),0 10px 30px rgba(45,125,255,.32);}
.btn-ghost{background:rgba(255,255,255,.04);color:#B9C9DE;border-color:var(--line);}
.btn-ghost:hover,.btn-ghost:focus{color:#fff;border-color:rgba(45,125,255,.5);}
.btn-sm{min-height:40px;padding:0 18px;font-size:14.5px;}
.sec-mist .btn-line{color:#12447F;border-color:rgba(45,125,255,.5);}
.sec-mist .btn-line:hover{color:#0B2A4F;}

/* ---------- badges ---------- */
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  font-size:12.5px;letter-spacing:.02em;
  color:var(--cyan);background:rgba(18,214,192,.08);border:1px solid rgba(18,214,192,.18);
}
.pill-blue{color:#8CB8FF;background:rgba(45,125,255,.10);border-color:rgba(45,125,255,.24);}
.pill-orange{color:#FFB48C;background:rgba(255,106,43,.10);border-color:rgba(255,106,43,.26);}
.sec-mist .pill{color:#0A8E82;background:rgba(18,214,192,.12);border-color:rgba(18,214,192,.28);}
.sec-mist .pill-blue{color:#1E5CC4;background:rgba(45,125,255,.10);border-color:rgba(45,125,255,.22);}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(6,24,46,.72);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background var(--ease),border-color var(--ease);
}
.site-header.is-stuck{background:rgba(6,24,46,.9);border-bottom-color:var(--line);}
.nav-split{display:flex;align-items:center;justify-content:space-between;gap:26px;height:70px;}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{
  width:40px;height:40px;border-radius:12px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(150deg,#2D7DFF,#0B4BC4);
  color:#fff;font-size:18px;box-shadow:0 8px 22px rgba(45,125,255,.34);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text b{font-size:17.5px;color:#fff;letter-spacing:.02em;font-weight:700;}
.brand-text span{font-size:11.5px;color:#7E95B0;letter-spacing:.2em;}
.nav-links{display:flex;align-items:center;gap:6px;flex:1;}
.nav-links a{
  display:inline-flex;align-items:center;height:38px;padding:0 14px;border-radius:10px;
  font-size:15px;color:#BACBDF;transition:color var(--ease),background var(--ease);
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.06);}
.nav-links a.active{color:#fff;background:rgba(45,125,255,.16);box-shadow:inset 0 0 0 1px rgba(45,125,255,.32);}
.nav-right{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.nav-search{
  width:40px;height:40px;border-radius:11px;border:1px solid var(--line);
  background:rgba(255,255,255,.04);color:#9FB2C9;
  display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all var(--ease);
}
.nav-search:hover{color:#fff;border-color:rgba(45,125,255,.5);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.05);color:#fff;align-items:center;justify-content:center;cursor:pointer;
}
.nav-drawer{
  display:none;border-top:1px solid var(--line-soft);
  background:rgba(4,16,31,.98);padding:14px 0 20px;
}
.nav-drawer.open{display:block;}
.nav-drawer a{
  display:block;padding:13px 22px;color:#C4D4E6;font-size:15.5px;border-bottom:1px solid var(--line-soft);
}
.nav-drawer a.active{color:#fff;background:rgba(45,125,255,.12);}
.nav-drawer .drawer-cta{padding:16px 22px 0;}

/* ---------- hero ---------- */
.hero{padding:72px 0 88px;position:relative;overflow:hidden;}
.hero::after{
  content:"";position:absolute;top:-220px;right:-160px;width:640px;height:640px;border-radius:50%;
  background:radial-gradient(circle,rgba(45,125,255,.20) 0%,rgba(45,125,255,0) 68%);pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;position:relative;z-index:2;}
.hero h1{font-size:clamp(30px,3.6vw,48px);line-height:1.24;font-weight:800;letter-spacing:-.6px;margin:18px 0 0;}
.hero h1 em{font-style:normal;color:var(--cyan);}
.hero-lead{margin-top:22px;font-size:17px;color:#A9BCD2;max-width:560px;line-height:1.9;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:36px;margin-top:38px;padding-top:24px;border-top:1px solid var(--line-soft);}
.hero-stats div b{display:block;font-size:26px;font-weight:800;color:#fff;font-variant-numeric:tabular-nums;letter-spacing:-.5px;}
.hero-stats div span{font-size:13px;color:#8098B4;}
.hero-stats div b i{font-style:normal;font-size:14px;color:var(--cyan);margin-left:4px;font-weight:600;}

.hero-visual{position:relative;border-radius:22px;overflow:hidden;box-shadow:var(--sh-card);}
.hero-visual img{width:100%;height:430px;object-fit:cover;background:var(--bg-card);}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,24,46,.20) 0%,rgba(6,24,46,.86) 100%);
}
.entry-card{
  position:absolute;left:22px;right:22px;bottom:22px;z-index:3;
  background:rgba(255,255,255,.07);border:1px solid var(--line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-radius:var(--r-card);padding:22px;
}
.entry-card h3{font-size:17px;color:#fff;font-weight:700;display:flex;align-items:center;gap:8px;}
.entry-card p{font-size:13px;color:#9FB2C9;margin-top:6px;}
.entry-field{margin-top:16px;}
.entry-field label{display:block;font-size:12.5px;color:#8FA6C0;margin-bottom:7px;}
.entry-field input{
  width:100%;height:46px;border-radius:var(--r-btn);
  background:rgba(6,24,46,.62);border:1px solid var(--line);
  padding:0 14px;color:#E8EFF8;font-size:14.5px;transition:border-color var(--ease),box-shadow var(--ease);
}
.entry-field input::placeholder{color:#63799A;}
.entry-field input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(18,214,192,.16);}
.entry-card .btn-glow{width:100%;margin-top:16px;}

/* ---------- quick band ---------- */
.quick-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:20px;}
.qcard{
  position:relative;display:flex;flex-direction:column;justify-content:space-between;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;min-height:180px;transition:transform var(--ease),border-color var(--ease),background var(--ease);
}
.qcard:hover{transform:translateY(-4px);border-color:rgba(45,125,255,.45);background:var(--glass-strong);}
.qcard .qi{font-size:20px;color:var(--cyan);}
.qcard h3{font-size:18.5px;color:#fff;font-weight:700;margin-top:16px;}
.qcard p{font-size:14.5px;color:#9FB2C9;margin-top:8px;line-height:1.75;}
.qcard .qlink{margin-top:18px;font-size:14px;color:var(--blue);display:inline-flex;align-items:center;gap:7px;}
.qcard:nth-child(1){grid-column:span 5;}
.qcard:nth-child(2){grid-column:span 3;}
.qcard:nth-child(3){grid-column:span 4;}
.qcard:nth-child(4){grid-column:span 7;}
.qcard:nth-child(5){grid-column:span 5;}
@media(max-width:1199px){
  .qcard:nth-child(1){grid-column:span 6;}
  .qcard:nth-child(2){grid-column:span 6;}
  .qcard:nth-child(3){grid-column:span 6;}
  .qcard:nth-child(4){grid-column:span 6;}
  .qcard:nth-child(5){grid-column:span 12;}
}

/* ---------- advantage ---------- */
.adv-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start;}
.adv-list li{display:flex;gap:22px;padding:26px 0;border-bottom:1px solid var(--line-soft);}
.adv-list li:first-child{padding-top:0;}
.adv-num{
  font-size:34px;font-weight:800;line-height:1;color:transparent;
  -webkit-text-stroke:1px rgba(45,125,255,.7);font-variant-numeric:tabular-nums;flex-shrink:0;width:64px;
}
.adv-list h3{font-size:19px;color:#fff;font-weight:700;}
.adv-list p{font-size:15px;color:#93A8C1;margin-top:8px;line-height:1.8;}
.data-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.data-card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);padding:26px 24px;
}
.data-card b{
  display:block;font-size:clamp(34px,4vw,48px);font-weight:800;line-height:1;
  font-variant-numeric:tabular-nums;letter-spacing:-1px;color:var(--cyan);
}
.data-card b.blue{color:#7FB0FF;}
.data-card em{font-style:normal;font-size:15px;color:#7E95B0;margin-left:6px;font-weight:500;}
.data-card span{display:block;font-size:14.5px;color:#9FB2C9;margin-top:12px;}

/* ---------- matrix ---------- */
.matrix{display:grid;grid-template-columns:4fr 8fr;gap:52px;align-items:start;}
.matrix-side{position:sticky;top:104px;}
.matrix-side h2{font-size:clamp(24px,2.6vw,32px);font-weight:700;line-height:1.35;color:var(--ink);}
.matrix-side p{color:var(--ink-2);font-size:15.5px;margin-top:14px;}
.matrix-item{
  display:grid;grid-template-columns:52px 1fr 150px;gap:22px;align-items:center;
  background:#fff;border:1px solid rgba(16,34,64,.08);border-radius:var(--r-card);
  padding:22px;margin-bottom:16px;box-shadow:var(--sh-light);
  transition:transform var(--ease),box-shadow var(--ease);
}
.matrix-item:hover{transform:translateY(-3px);box-shadow:0 18px 40px rgba(16,34,64,.14);}
.matrix-item .mi-num{font-size:15px;font-weight:700;color:#1E5CC4;background:rgba(45,125,255,.10);border-radius:10px;height:38px;display:flex;align-items:center;justify-content:center;}
.matrix-item h3{font-size:18px;color:var(--ink);font-weight:700;}
.matrix-item p{font-size:14.5px;color:var(--ink-2);margin-top:6px;line-height:1.72;}
.matrix-item img{width:150px;height:96px;object-fit:cover;border-radius:12px;background:#DCE6F2;}

/* ---------- cases ---------- */
.case-scroll{display:flex;gap:20px;overflow-x:auto;padding:6px 4px 22px;scroll-snap-type:x mandatory;}
.case-scroll::-webkit-scrollbar{height:6px;}
.case-scroll::-webkit-scrollbar-thumb{background:rgba(255,255,255,.16);border-radius:99px;}
.case-card{
  flex:0 0 calc((100% - 40px)/3);scroll-snap-align:start;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  transition:transform var(--ease),border-color var(--ease);
}
.case-card:hover{transform:translateY(-4px);border-color:rgba(45,125,255,.42);}
.case-card img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--bg-card);}
.case-body{padding:22px;}
.case-body h3{font-size:18px;color:#fff;font-weight:700;margin-top:12px;}
.case-body p{font-size:14.5px;color:#9FB2C9;margin-top:10px;line-height:1.75;}
.case-body .qlink{margin-top:16px;font-size:14px;color:var(--blue);display:inline-flex;align-items:center;gap:7px;}

/* ---------- cms list ---------- */
.cms-layout{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:start;}
.cms-hero{
  display:block;background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;transition:transform var(--ease),border-color var(--ease);
}
.cms-hero:hover{transform:translateY(-4px);border-color:rgba(45,125,255,.42);}
.cms-hero img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--bg-card);}
.cms-hero-body{padding:26px;}
.cms-hero-body h3{font-size:21px;color:#fff;font-weight:700;line-height:1.5;margin-top:14px;}
.cms-hero-body p{font-size:15px;color:#9FB2C9;margin-top:12px;line-height:1.8;}
.cms-meta{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:16px;font-size:13px;color:#8098B4;}
.cms-side{display:flex;flex-direction:column;gap:14px;}
.cms-row{
  display:block;background:var(--glass);border:1px solid var(--line);border-radius:14px;padding:18px 20px;
  transition:transform var(--ease),border-color var(--ease),background var(--ease);
}
.cms-row:hover{transform:translateX(4px);border-color:rgba(45,125,255,.42);background:var(--glass-strong);}
.cms-row h4{font-size:16px;color:#fff;font-weight:600;line-height:1.6;}
.cms-row p{font-size:13.5px;color:#8FA6C0;margin-top:8px;line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.cms-row .cms-meta{margin-top:10px;}
.cms-empty{
  text-align:center;padding:60px 24px;background:var(--glass);border:1px dashed var(--line);
  border-radius:var(--r-card);
}
.cms-empty i{font-size:30px;color:#4E6party;}
.cms-empty i{font-size:30px;color:#4E6A90;}
.cms-empty h3{font-size:18px;color:#fff;margin-top:16px;font-weight:700;}
.cms-empty p{font-size:14.5px;color:#9FB2C9;margin-top:8px;}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px;margin:0 auto;}
.faq-item{
  background:#fff;border:1px solid rgba(16,34,64,.08);border-radius:14px;
  border-left:3px solid var(--blue);box-shadow:var(--sh-light);overflow:hidden;
}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:none;border:0;text-align:left;cursor:pointer;
  padding:22px 24px;font-size:17.5px;font-weight:600;color:var(--ink);line-height:1.6;
}
.faq-q i{color:var(--blue);transition:transform var(--ease);flex-shrink:0;font-size:15px;}
.faq-item.open .faq-q i{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms ease-out;}
.faq-a p{padding:0 24px 24px;font-size:15px;color:var(--ink-2);line-height:1.85;}
.faq-item.open .faq-a{max-height:420px;}

/* ---------- cta ---------- */
.cta-band{
  display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center;
  background:var(--glass);border:1px solid var(--line);border-radius:22px;padding:52px;
}
.cta-band h2{font-size:clamp(24px,2.6vw,32px);font-weight:700;color:#fff;line-height:1.35;}
.cta-band > div > p{color:#9FB2C9;font-size:15.5px;margin-top:16px;}
.cta-points{margin-top:22px;display:flex;flex-direction:column;gap:10px;}
.cta-points li{display:flex;gap:10px;align-items:center;font-size:14.5px;color:#B9C9DE;}
.cta-points li i{color:var(--cyan);font-size:13px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.form-field{display:flex;flex-direction:column;}
.form-field.full{grid-column:1/-1;}
.form-field label{font-size:13.5px;color:#9FB2C9;margin-bottom:8px;}
.form-field label em{color:var(--orange);font-style:normal;margin-left:4px;}
.form-field input,.form-field select,.form-field textarea{
  background:rgba(255,255,255,.05);border:1px solid var(--line);border-radius:var(--r-btn);
  padding:13px 15px;color:#E8EFF8;font-size:15px;transition:border-color var(--ease),box-shadow var(--ease);
}
.form-field textarea{min-height:110px;resize:vertical;}
.form-field input::placeholder,.form-field textarea::placeholder{color:#63799A;}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{
  outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(18,214,192,.16);
}
.form-note{font-size:13px;color:#8098B4;margin-top:14px;}

/* ---------- footer ---------- */
.site-footer{background:var(--bg-deep);border-top:1px solid var(--line);padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:44px;}
.footer-brand p{font-size:14.5px;color:#8FA6C0;margin-top:18px;line-height:1.8;max-width:330px;}
.footer-col h4{font-size:15px;color:#fff;font-weight:700;margin-bottom:18px;}
.footer-col ul li{margin-bottom:11px;}
.footer-col ul a{font-size:14.5px;color:#93A8C1;}
.footer-col ul a:hover{color:var(--cyan);}
.footer-col address{font-style:normal;font-size:14.5px;color:#93A8C1;line-height:1.9;}
.footer-bottom{
  margin-top:56px;border-top:1px solid var(--line-soft);padding:22px 0;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:#6E839D;
}
.footer-bottom a{color:#93A8C1;}
.footer-bottom a:hover{color:var(--cyan);}

/* ---------- responsive ---------- */
@media(max-width:1199px){
  :root{--sec-y:86px;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero-visual img{height:380px;}
  .matrix{grid-template-columns:1fr;gap:34px;}
  .matrix-side{position:static;}
  .cms-layout{grid-template-columns:1fr;}
  .cta-band{grid-template-columns:1fr;padding:40px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media(max-width:991px){
  .nav-links,.nav-search,.nav-right .btn-glow{display:none;}
  .nav-toggle{display:flex;}
  .adv-grid{grid-template-columns:1fr;gap:38px;}
  .case-card{flex:0 0 78%;}
  .matrix-item{grid-template-columns:44px 1fr;}
  .matrix-item img{display:none;}
}
@media(max-width:767px){
  :root{--sec-y:var(--sec-y-m);}
  body{font-size:16px;}
  .hero{padding:44px 0 60px;}
  .hero-stats{gap:24px;}
  .hero-stats div b{font-size:22px;}
  .quick-grid{grid-template-columns:1fr;}
  .qcard:nth-child(n){grid-column:span 1;}
  .data-grid{grid-template-columns:1fr;}
  .form-grid{grid-template-columns:1fr;}
  .cta-band{padding:30px 22px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .case-card{flex:0 0 88%;}
  .sec-head{margin-bottom:30px;}
  .btn-glow,.btn-line,.btn-ghost{min-height:44px;}
}
@media(max-width:520px){
  .wrap{padding:0 16px;}
  .hero h1{font-size:30px;}
  .entry-card{left:12px;right:12px;bottom:12px;padding:18px;}
  .case-card{flex:0 0 92%;}
  .faq-q{font-size:16px;padding:18px;}
}

/* roulang page: category1 */
:root{
  --bs-primary-rgb:45,125,255;
  --bs-body-bg:#06182E;
  --bs-body-color:#E8EEF7;
  --bs-border-radius:16px;
  --bs-link-color:#12D6C0;
  --bs-link-hover-color:#2D7DFF;
  --deep:#06182E;
  --deep-2:#0B2137;
  --brand:#2D7DFF;
  --brand-soft:rgba(45,125,255,.14);
  --accent:#FF6A2B;
  --accent-soft:rgba(255,106,43,.14);
  --cyan:#12D6C0;
  --cyan-soft:rgba(18,214,192,.10);
  --mist:#F4F7FB;
  --mist-line:#E1E8F2;
  --ink:#0E1A2B;
  --ink-2:#5A6B82;
  --line:rgba(255,255,255,.10);
  --glass:rgba(255,255,255,.05);
  --r-card:16px;
  --r-btn:12px;
  --r-input:12px;
  --r-pill:999px;
  --sh-card:0 18px 44px rgba(0,0,0,.38);
  --sh-mist:0 12px 30px rgba(16,34,64,.10);
  --sp-sec:104px;
  --sp-sec-m:60px;
  --wrap:1200px;
  --wrap-wide:1320px;
  --t:180ms ease-out;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--deep);
  color:var(--bs-body-color);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC","Hiragino Sans GB",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--cyan);text-decoration:none;transition:color var(--t),opacity var(--t);}
a:hover{color:var(--brand);}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit;}
input,textarea,select{font-family:inherit;font-size:15px;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px;}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px;}
.wrap-wide{max-width:var(--wrap-wide);}
.tnum{font-variant-numeric:tabular-nums;}

/* ------- header / nav ------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:rgba(6,24,46,.72);
  border-bottom:1px solid transparent;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:background var(--t),border-color var(--t);
}
.site-header.is-scrolled{background:rgba(6,24,46,.9);border-bottom-color:var(--line);}
.nav-split{display:flex;align-items:center;gap:26px;height:70px;}
.brand{display:flex;align-items:center;gap:11px;color:#fff;}
.brand:hover{color:#fff;}
.brand-mark{
  width:40px;height:40px;border-radius:12px;flex:0 0 40px;
  display:grid;place-items:center;
  background:linear-gradient(150deg,rgba(45,125,255,.35),rgba(18,214,192,.18));
  border:1px solid rgba(120,180,255,.35);
  color:var(--cyan);font-size:17px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text b{font-size:17px;letter-spacing:.04em;letter-spacing:.04em;font-weight:700;}
.brand-text span{font-size:11.5px;color:rgba(232,238,247,.66);letter-spacing:.16em;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:14px;}
.nav-links a{
  position:relative;padding:9px 14px;border-radius:10px;
  font-size:15px;color:rgba(232,238,247,.78);
  transition:color var(--t),background var(--t);
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.06);}
.nav-links a.active{color:#fff;background:rgba(45,125,255,.18);}
.nav-links a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;
  background:var(--cyan);border-radius:2px;
}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px;}
.nav-search{
  width:40px;height:40px;border-radius:12px;
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  color:rgba(232,238,247,.8);display:grid;place-items:center;
  transition:var(--t);
}
.nav-search:hover{color:#fff;border-color:rgba(45,125,255,.55);background:rgba(45,125,255,.14);}
.btn-glow{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);
  background:var(--accent);color:#fff;font-size:15.5px;font-weight:600;
  box-shadow:0 8px 24px rgba(255,106,43,.28);
  transition:transform var(--t),box-shadow var(--t),background var(--t);
}
.btn-glow:hover{
  color:#fff;background:#FF7C43;transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(255,106,43,.6),0 12px 32px rgba(255,106,43,.42);
}
.btn-sm{height:40px;padding:0 18px;font-size:14.5px;}
.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);
  border:1px solid rgba(45,125,255,.7);color:#DCE8FA;
  background:rgba(45,125,255,.06);font-size:15.5px;font-weight:600;
  transition:transform var(--t),box-shadow var(--t),background var(--t),color var(--t);
}
.btn-line:hover{
  color:#fff;background:rgba(45,125,255,.18);transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(45,125,255,.6),0 10px 30px rgba(45,125,255,.35);
}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 18px;
  border-radius:var(--r-btn);border:1px solid var(--line);
  color:rgba(232,238,247,.85);background:transparent;font-size:15px;
  transition:var(--t);
}
.btn-ghost:hover{color:#fff;border-color:rgba(18,214,192,.6);background:rgba(18,214,192,.08);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  color:#fff;font-size:17px;place-items:center;
}
.nav-drawer{
  display:none;flex-direction:column;gap:6px;
  padding:14px 24px 22px;background:rgba(6,24,46,.98);
  border-bottom:1px solid var(--line);
}
.nav-drawer.open{display:flex;}
.nav-drawer a{
  padding:12px 14px;border-radius:12px;color:rgba(232,238,247,.85);font-size:15.5px;
  border:1px solid transparent;
}
.nav-drawer a.active{color:#fff;background:rgba(45,125,255,.16);border-color:rgba(45,125,255,.35);}
.drawer-cta{margin-top:10px;padding-top:14px;border-top:1px solid var(--line);}

/* ------- section rhythm ------- */
.sec-band{padding:var(--sp-sec) 0;}
.tier-glass{
  background:var(--glass);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.tier-mist{background:var(--mist);color:var(--ink);}
.tier-mist .sec-sub,.tier-mist p{color:var(--ink-2);}
.sec-head{max-width:800px;margin-bottom:46px;}
.sec-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:var(--cyan-soft);color:var(--cyan);
  font-size:13px;letter-spacing:.12em;margin-bottom:16px;
}
.tier-mist .sec-tag{background:rgba(45,125,255,.10);color:#1D63D2;}
.sec-head h2{font-size:32px;line-height:1.35;color:#fff;}
.tier-mist .sec-head h2{color:var(--ink);}
.sec-sub{margin-top:14px;font-size:16px;color:rgba(232,238,247,.7);max-width:760px;}
.dot{width:6px;height:6px;border-radius:50%;background:var(--cyan);display:inline-block;}

/* ------- category hero ------- */
.cat-hero{
  position:relative;
  padding:150px 0 70px;
  background:
    radial-gradient(900px 420px at 12% -10%,rgba(45,125,255,.20),transparent 65%),
    radial-gradient(700px 380px at 92% 0%,rgba(18,214,192,.10),transparent 70%),
    var(--deep);
  overflow:hidden;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  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 78%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.7),transparent 78%);
}
.cat-hero .wrap{position:relative;z-index:2;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--cyan);margin-bottom:20px;}
.crumb a{color:rgba(18,214,192,.86);}
.crumb a:hover{color:#fff;}
.crumb span.sep{color:rgba(232,238,247,.35);}
.cat-hero h1{font-size:46px;line-height:1.28;color:#fff;max-width:900px;letter-spacing:.01em;}
.cat-hero h1 em{font-style:normal;color:var(--brand);}
.hero-lead{margin-top:20px;font-size:17px;color:rgba(232,238,247,.74);max-width:780px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.meta-pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 15px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:rgba(255,255,255,.05);
  font-size:13.5px;color:rgba(232,238,247,.8);
}
.steps{
  margin-top:44px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
}
.step{
  position:relative;
  padding:22px 20px;
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:transform var(--t),border-color var(--t);
}
.step:hover{transform:translateY(-3px);border-color:rgba(45,125,255,.5);}
.step .num{font-size:22px;font-weight:700;color:var(--cyan);font-variant-numeric:tabular-nums;}
.step h3{font-size:16.5px;color:#fff;margin:10px 0 6px;}
.step p{font-size:14px;color:rgba(232,238,247,.66);line-height:1.7;}
.step::after{
  content:"";position:absolute;top:50%;right:-12px;width:7px;height:7px;
  border-radius:50%;background:rgba(18,214,192,.45);
}
.step:last-child::after{display:none;}

/* ------- flow layout ------- */
.flow-layout{display:grid;grid-template-columns:262px 1fr;gap:44px;align-items:start;}
.side-nav{
  position:sticky;top:96px;
  padding:22px;
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.side-nav h3{font-size:15px;color:#fff;letter-spacing:.06em;margin-bottom:14px;}
.side-nav ul{display:flex;flex-direction:column;gap:4px;}
.side-nav a{
  display:flex;align-items:center;gap:10px;
  padding:10px 12px;border-radius:10px;
  font-size:14.5px;color:rgba(232,238,247,.72);
  border-left:3px solid transparent;
  transition:var(--t);
}
.side-nav a:hover{color:#fff;background:rgba(255,255,255,.05);border-left-color:rgba(45,125,255,.6);}
.side-nav a b{color:var(--cyan);font-size:12.5px;font-variant-numeric:tabular-nums;}
.side-tip{
  margin-top:18px;padding-top:16px;border-top:1px solid var(--line);
  font-size:13.5px;color:rgba(232,238,247,.6);line-height:1.75;
}
.timeline{display:flex;flex-direction:column;gap:22px;}
.tl-item{
  position:relative;
  padding:26px 28px 26px 30px;
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-left:3px solid rgba(45,125,255,.65);
  transition:transform var(--t),border-color var(--t);
}
.tl-item:hover{transform:translateY(-2px);border-color:rgba(45,125,255,.42);border-left-color:var(--brand);}
.tl-head{display:flex;align-items:center;gap:14px;flex-wrap:wrap;}
.tl-num{
  font-size:30px;font-weight:700;color:var(--brand);
  font-variant-numeric:tabular-nums;line-height:1;
}
.tl-item h3{font-size:20px;color:#fff;}
.tl-item p{margin-top:12px;font-size:15.5px;color:rgba(232,238,247,.74);max-width:780px;}
.tl-item p + p{margin-top:8px;}
.tl-links{display:flex;flex-wrap:wrap;gap:14px;margin-top:16px;}
.tl-links a{
  display:inline-flex;align-items:center;gap:7px;
  font-size:14px;color:var(--cyan);
  border-bottom:1px solid rgba(18,214,192,.4);
  padding-bottom:2px;
}
.tl-links a:hover{color:#fff;border-bottom-color:#fff;}
.tl-links a i{font-size:12px;}

/* ------- wide figure ------- */
.figure-band{padding:0 0 var(--sp-sec);}
.figure-card{
  border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--line);background:var(--deep-2);
  box-shadow:var(--sh-card);
}
.figure-card img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.figure-cap{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:16px 22px;font-size:13.5px;color:rgba(232,238,247,.62);
  border-top:1px solid var(--line);
}

/* ------- FAQ ------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px;}
.faq-item{
  border-radius:14px;background:#fff;border:1px solid var(--mist-line);
  border-left:3px solid var(--brand);
  box-shadow:var(--sh-mist);overflow:hidden;
}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 22px;text-align:left;font-size:17.5px;font-weight:600;color:var(--ink);
  transition:background var(--t);
}
.faq-q:hover{background:rgba(45,125,255,.05);}
.faq-q .ico{
  width:30px;height:30px;flex:0 0 30px;border-radius:50%;
  display:grid;place-items:center;
  background:rgba(45,125,255,.12);color:var(--brand);font-size:13px;
  transition:transform var(--t),background var(--t);
}
.faq-item.open .faq-q .ico{transform:rotate(45deg);background:var(--accent-soft);color:var(--accent);}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms ease-out;}
.faq-a-inner{padding:0 22px 22px;font-size:15px;line-height:1.85;color:var(--ink-2);}

/* ------- CTA band ------- */
.cta-band{
  border-radius:20px;padding:44px 46px;
  background:
    radial-gradient(600px 260px at 88% 0%,rgba(255,106,43,.20),transparent 70%),
    radial-gradient(520px 260px at 6% 100%,rgba(45,125,255,.22),transparent 72%),
    var(--deep-2);
  border:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
}
.cta-band h2{font-size:29px;color:#fff;line-height:1.4;}
.cta-band p{margin-top:12px;font-size:15.5px;color:rgba(232,238,247,.7);max-width:620px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ------- related grid ------- */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.rel-card{
  display:block;padding:26px 24px;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:transform var(--t),border-color var(--t),background var(--t);
}
.rel-card:hover{transform:translateY(-4px);border-color:rgba(45,125,255,.5);background:rgba(45,125,255,.08);}
.rel-card .ico{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:var(--cyan-soft);color:var(--cyan);font-size:18px;margin-bottom:16px;
}
.rel-card h3{font-size:18.5px;color:#fff;margin-bottom:10px;}
.rel-card p{font-size:14.5px;color:rgba(232,238,247,.68);}
.rel-card .more{display:inline-flex;align-items:center;gap:7px;margin-top:16px;font-size:14px;color:var(--accent);}
.rel-card:hover .more{color:#FF8F5E;}

/* ------- footer ------- */
.site-footer{
  background:#04101F;border-top:1px solid var(--line);
  padding:64px 0 28px;margin-top:0;
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:34px;
  padding-bottom:36px;border-bottom:1px solid var(--line);
}
.footer-brand p{margin-top:16px;font-size:14px;color:rgba(232,238,247,.62);max-width:360px;line-height:1.8;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;letter-spacing:.05em;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:rgba(232,238,247,.68);}
.footer-col a:hover{color:var(--cyan);}
.footer-col address{font-style:normal;font-size:14px;line-height:2;color:rgba(232,238,247,.68);}
.footer-col address a{color:var(--cyan);border-bottom:1px solid rgba(18,214,192,.35);}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding-top:22px;font-size:13px;color:rgba(232,238,247,.5);
}

/* ------- responsive ------- */
@media (max-width:1200px){
  .flow-layout{gap:32px;}
  .cat-hero h1{font-size:40px;}
}
@media (max-width:991px){
  :root{--sp-sec:var(--sp-sec-m);}
  .nav-links,.nav-search{display:none;}
  .nav-toggle{display:grid;}
  .nav-right .btn-sm{display:none;}
  .nav-split{height:64px;}
  .cat-hero{padding:120px 0 56px;}
  .cat-hero h1{font-size:33px;}
  .hero-lead{font-size:16px;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .step::after{display:none;}
  .flow-layout{grid-template-columns:1fr;}
  .side-nav{position:static;}
  .rel-grid{grid-template-columns:1fr;}
  .cta-band{padding:34px 26px;}
  .cta-band h2{font-size:24px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:575px){
  body{font-size:16px;}
  .wrap{padding:0 18px;}
  .cat-hero h1{font-size:30px;}
  .sec-head h2{font-size:24px;}
  .steps{grid-template-columns:1fr;}
  .tl-item{padding:22px 20px;}
  .tl-num{font-size:24px;}
  .tl-item h3{font-size:18px;}
  .cta-band h2{font-size:21px;}
  .cta-actions{width:100%;}
  .cta-actions .btn-glow,.cta-actions .btn-line{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
}

/* roulang page: article */
:root{
  --bs-primary-rgb:45,125,255;
  --bs-body-bg:#06182E;
  --bs-body-color:#E8EFFA;
  --bs-border-radius:16px;
  --bs-link-color:#12D6C0;
  --bs-link-hover-color:#2D7DFF;

  --ink:#06182E;
  --ink-2:#0B2137;
  --ink-3:#081F38;
  --blue:#2D7DFF;
  --blue-soft:rgba(45,125,255,.16);
  --orange:#FF6A2B;
  --orange-soft:rgba(255,106,43,.15);
  --cyan:#12D6C0;
  --cyan-soft:rgba(18,214,192,.08);
  --mist:#F4F7FB;
  --title-light:#0E1A2B;
  --muted-light:#5A6B82;
  --text:#E8EFFA;
  --muted:#9DB0C9;
  --glass:rgba(255,255,255,.05);
  --glass-line:rgba(255,255,255,.10);
  --white:#FFFFFF;
  --r-card:16px;
  --r-btn:12px;
  --r-input:12px;
  --shadow-deep:0 18px 44px rgba(0,0,0,.38);
  --shadow-light:0 12px 30px rgba(16,34,64,.10);
  --ease:180ms ease-out;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--ink);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC","Hiragino Sans GB",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--cyan);text-decoration:none;transition:color var(--ease),opacity var(--ease);}
a:hover{color:var(--blue);}
button,input{font-family:inherit;}
button{border:0;background:none;cursor:pointer;color:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:700;letter-spacing:.2px;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px;}

.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
.wrap-wide{max-width:1320px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(6,24,46,.72);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background var(--ease),border-color var(--ease);
}
.site-header.is-scrolled{
  background:rgba(6,24,46,.92);
  border-bottom-color:var(--glass-line);
}
.nav-split{
  display:flex;align-items:center;gap:24px;
  min-height:70px;
}
.brand{display:flex;align-items:center;gap:12px;color:var(--text);flex-shrink:0;}
.brand:hover{color:var(--text);}
.brand-mark{
  width:42px;height:42px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(150deg,rgba(45,125,255,.9),rgba(18,214,192,.75));
  color:#04121F;font-size:19px;
  box-shadow:0 8px 22px rgba(45,125,255,.35);
}
.brand-text{display:flex;flex-direction:column;line-height:1.18;}
.brand-text b{font-size:17px;letter-spacing:.6px;}
.brand-text span{font-size:12px;color:var(--cyan);letter-spacing:2.4px;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:6px;}
.nav-links a{
  position:relative;
  padding:9px 14px;border-radius:999px;
  font-size:14.5px;color:var(--muted);
  transition:color var(--ease),background var(--ease);
}
.nav-links a:hover{color:var(--text);background:rgba(255,255,255,.06);}
.nav-links a.active{color:var(--text);background:rgba(45,125,255,.18);box-shadow:inset 0 0 0 1px rgba(45,125,255,.42);}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:10px;}
.nav-search{
  width:40px;height:40px;border-radius:12px;
  display:grid;place-items:center;
  background:var(--glass);border:1px solid var(--glass-line);
  color:var(--muted);transition:all var(--ease);
}
.nav-search:hover{color:var(--cyan);border-color:rgba(18,214,192,.5);}
.btn-glow{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);
  background:var(--orange);color:#fff;font-size:15px;font-weight:600;
  box-shadow:0 10px 26px rgba(255,106,43,.28);
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease);
}
.btn-glow:hover{
  color:#fff;transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(255,106,43,.6),0 14px 34px rgba(255,106,43,.42);
}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);
  border:1px solid rgba(45,125,255,.6);color:#CFE0FF;font-size:15px;font-weight:600;
  background:transparent;
  transition:transform var(--ease),box-shadow var(--ease),color var(--ease);
}
.btn-line:hover{
  color:#fff;transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(45,125,255,.6),0 10px 30px rgba(45,125,255,.35);
}
.btn-ghost{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;color:var(--muted);padding:8px 4px;
}
.btn-ghost:hover{color:var(--cyan);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  background:var(--glass);border:1px solid var(--glass-line);
  color:var(--text);place-items:center;
}
.nav-drawer{
  display:none;flex-direction:column;gap:6px;
  padding:10px 20px 20px;border-top:1px solid var(--glass-line);
  background:rgba(6,24,46,.98);
}
.nav-drawer.open{display:flex;}
.nav-drawer a{padding:12px 14px;border-radius:12px;color:var(--muted);font-size:15px;background:rgba(255,255,255,.03);}
.nav-drawer a.active{color:#fff;background:rgba(45,125,255,.2);}
.drawer-cta{padding-top:8px;}

/* ---------- article head ---------- */
.article-head{
  position:relative;overflow:hidden;
  padding:44px 0 52px;
  background:
    radial-gradient(900px 380px at 82% -12%,rgba(45,125,255,.22),transparent 62%),
    radial-gradient(600px 300px at 8% 108%,rgba(18,214,192,.12),transparent 66%),
    var(--ink);
}
.article-head::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:64px 64px;
}
.article-head .wrap{position:relative;z-index:2;}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--cyan);margin-bottom:18px;
}
.crumb a{color:var(--cyan);}
.crumb a:hover{color:var(--blue);}
.crumb .sep{color:rgba(255,255,255,.3);}
.crumb .cur{color:var(--muted);}
.article-head h1{
  font-size:44px;line-height:1.28;letter-spacing:.4px;
  max-width:900px;
}
.meta-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.meta-pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 15px;border-radius:999px;
  border:1px solid var(--glass-line);background:var(--glass);
  font-size:13px;color:var(--muted);
}
.meta-pill i{color:var(--cyan);font-size:12px;}

/* ---------- article layout ---------- */
.article-main{background:var(--mist);color:var(--title-light);padding:64px 0 72px;}
.article-shell{
  display:grid;
  grid-template-columns:238px minmax(0,1fr) 300px;
  gap:32px;align-items:start;
}
.toc-card{
  position:sticky;top:96px;
  background:#fff;border:1px solid rgba(16,34,64,.08);border-radius:var(--r-card);
  padding:20px;box-shadow:var(--shadow-light);
}
.toc-card h3{font-size:14px;letter-spacing:1px;color:var(--muted-light);text-transform:uppercase;margin-bottom:14px;}
.toc-card ul{display:flex;flex-direction:column;gap:2px;}
.toc-card a{
  display:block;padding:9px 12px;border-radius:10px;
  font-size:14px;color:#33465F;border-left:3px solid transparent;
  transition:all var(--ease);
}
.toc-card a:hover{background:rgba(45,125,255,.08);color:var(--blue);border-left-color:var(--blue);}
.toc-card a.on{background:rgba(45,125,255,.10);color:var(--blue);border-left-color:var(--blue);font-weight:600;}

.article-card{
  background:#fff;border:1px solid rgba(16,34,64,.08);border-radius:20px;
  padding:44px 48px;box-shadow:var(--shadow-light);
  max-width:800px;margin:0 auto;
}
.article-body{font-size:16.5px;line-height:1.9;color:#233348;word-break:break-word;}
.article-body p{margin:0 0 20px;}
.article-body h2{
  position:relative;
  font-size:28px;color:var(--title-light);
  margin:44px 0 18px;padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:3px;
  background:var(--blue);
}
.article-body h3{font-size:20px;color:var(--title-light);margin:30px 0 12px;font-weight:700;}
.article-body ul,.article-body ol{margin:0 0 22px;padding-left:4px;}
.article-body ul li,.article-body ol li{position:relative;padding-left:22px;margin-bottom:10px;list-style:none;}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:12px;width:7px;height:7px;
  background:var(--blue);border-radius:2px;
}
.article-body ol{counter-reset:olc;}
.article-body ol li::before{
  counter-increment:olc;content:counter(olc);
  position:absolute;left:0;top:2px;width:18px;height:18px;border-radius:999px;
  background:var(--blue-soft);color:var(--blue);font-size:12px;font-weight:700;
  display:grid;place-items:center;
}
.article-body blockquote{
  margin:26px 0;padding:20px 22px;
  background:var(--mist);border-left:3px solid var(--orange);border-radius:0 12px 12px 0;
  color:#3C4E66;font-size:16px;
}
.article-body img{border-radius:12px;margin:24px auto;box-shadow:var(--shadow-light);}
.article-body figure{margin:26px 0;}
.article-body figcaption{
  text-align:center;font-size:13px;color:var(--muted-light);margin-top:10px;
}
.article-body table{
  width:100%;border-collapse:collapse;margin:26px 0;font-size:15px;
  border-radius:12px;overflow:hidden;box-shadow:0 0 0 1px rgba(16,34,64,.08);
}
.article-body table th{
  background:var(--ink-2);color:#EAF2FF;text-align:left;padding:12px 14px;font-weight:600;
}
.article-body table td{padding:12px 14px;border-top:1px solid rgba(16,34,64,.08);}
.article-body table tbody tr:nth-child(even){background:#F7FAFE;}
.article-body a{color:#0E8F84;text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--blue);}
.article-body code{
  background:#F1F5FB;color:#1D4ED8;padding:2px 7px;border-radius:6px;font-size:14px;
}

.article-empty{
  background:#fff;border:1px solid rgba(16,34,64,.08);border-radius:20px;
  padding:56px 32px;text-align:center;box-shadow:var(--shadow-light);
}
.article-empty .ico{
  width:64px;height:64px;border-radius:18px;margin:0 auto 18px;
  display:grid;place-items:center;background:var(--blue-soft);color:var(--blue);font-size:26px;
}
.article-empty h2{font-size:24px;color:var(--title-light);margin-bottom:10px;}
.article-empty p{color:var(--muted-light);font-size:15px;margin-bottom:24px;}

/* ---------- sidebar ---------- */
.side{display:flex;flex-direction:column;gap:20px;position:sticky;top:96px;}
.side-card{
  background:#fff;border:1px solid rgba(16,34,64,.08);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--shadow-light);
}
.side-card h3{
  font-size:15px;color:var(--title-light);margin-bottom:14px;
  padding-left:11px;position:relative;
}
.side-card h3::before{
  content:"";position:absolute;left:0;top:5px;bottom:5px;width:3px;border-radius:3px;background:var(--blue);
}
.side-list{display:flex;flex-direction:column;}
.side-list a{
  display:flex;align-items:flex-start;gap:10px;
  padding:11px 0;border-bottom:1px dashed rgba(16,34,64,.10);
  font-size:14.5px;color:#33465F;line-height:1.6;
}
.side-list a:last-child{border-bottom:0;}
.side-list a:hover{color:var(--blue);}
.side-list .dot{width:6px;height:6px;border-radius:999px;background:var(--cyan);margin-top:9px;flex-shrink:0;}
.side-list .idx{
  width:22px;height:22px;border-radius:8px;flex-shrink:0;margin-top:2px;
  display:grid;place-items:center;background:var(--blue-soft);color:var(--blue);
  font-size:12px;font-weight:700;
}
.quick-card{
  background:linear-gradient(160deg,#0B2137,#0D2C4C);
  border:1px solid rgba(45,125,255,.32);border-radius:var(--r-card);
  padding:24px;color:#DCE8FA;box-shadow:var(--shadow-deep);
}
.quick-card h3{color:#fff;font-size:17px;margin-bottom:10px;}
.quick-card p{font-size:14px;color:#AEC2DC;line-height:1.8;margin-bottom:18px;}
.quick-card .btn-glow{width:100%;}

/* ---------- footer of article area ---------- */
.article-foot{padding-top:40px;margin-top:40px;border-top:1px solid rgba(16,34,64,.10);}
.source-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  padding:16px 18px;border-radius:14px;background:var(--mist);
  font-size:14px;color:var(--muted-light);
}
.source-bar i{color:var(--blue);}
.pager{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
.pager a{
  flex:1 1 240px;display:flex;flex-direction:column;gap:6px;
  padding:18px 20px;border-radius:14px;background:#fff;
  border:1px solid rgba(16,34,64,.10);box-shadow:var(--shadow-light);
  transition:transform var(--ease),box-shadow var(--ease);
}
.pager a:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(16,34,64,.14);}
.pager span{font-size:12px;color:var(--muted-light);letter-spacing:1px;}
.pager b{font-size:15px;color:var(--title-light);font-weight:600;line-height:1.6;}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;overflow:hidden;
  padding:76px 0;
  background:
    radial-gradient(700px 320px at 88% 0%,rgba(255,106,43,.20),transparent 60%),
    radial-gradient(620px 320px at 4% 100%,rgba(45,125,255,.22),transparent 62%),
    var(--ink);
}
.cta-inner{
  display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);
  gap:32px;align-items:center;
}
.cta-inner h2{font-size:32px;margin-bottom:14px;}
.cta-inner p{color:var(--muted);font-size:16px;max-width:640px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;}
.cta-facts{display:flex;flex-wrap:wrap;gap:26px;margin-top:26px;}
.cta-facts div{font-size:13px;color:var(--muted);}
.cta-facts b{
  display:block;font-size:34px;line-height:1.1;color:var(--cyan);
  font-variant-numeric:tabular-nums;font-weight:700;
}

/* ---------- related ---------- */
.related{background:var(--mist);color:var(--title-light);padding:72px 0 80px;}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:30px;}
.sec-head h2{font-size:30px;color:var(--title-light);}
.sec-head p{color:var(--muted-light);font-size:15px;margin-top:8px;}
.sec-head .more{font-size:14px;color:var(--blue);font-weight:600;}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.rel-card{
  display:flex;flex-direction:column;background:#fff;border-radius:var(--r-card);
  overflow:hidden;border:1px solid rgba(16,34,64,.08);box-shadow:var(--shadow-light);
  transition:transform var(--ease),box-shadow var(--ease);
}
.rel-card:hover{transform:translateY(-3px);box-shadow:0 20px 40px rgba(16,34,64,.16);}
.rel-thumb{aspect-ratio:16/9;background:var(--ink-2);overflow:hidden;}
.rel-thumb img{width:100%;height:100%;object-fit:cover;}
.rel-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.badge-tag{
  align-self:flex-start;
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  background:var(--cyan-soft);color:#0E8F84;font-size:12.5px;font-weight:600;
}
.rel-body h3{font-size:18px;color:var(--title-light);line-height:1.55;}
.rel-body h3 a{color:var(--title-light);}
.rel-body h3 a:hover{color:var(--blue);}
.rel-body .desc{font-size:14px;color:var(--muted-light);line-height:1.75;}
.rel-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:8px;}
.rel-foot time{font-size:12.5px;color:#8595AB;}

/* ---------- footer ---------- */
.site-footer{
  background:#04121F;border-top:1px solid var(--glass-line);
  padding:64px 0 26px;color:var(--muted);
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:34px;
}
.footer-brand p{font-size:14px;line-height:1.85;margin-top:16px;color:#8FA3BC;max-width:340px;}
.footer-col h4{font-size:15px;color:#E8EFFA;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:#9DB0C9;}
.footer-col a:hover{color:var(--cyan);}
.footer-col address{font-style:normal;font-size:14px;line-height:2;color:#9DB0C9;}
.footer-col address a{color:var(--cyan);}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:#7C8FA9;
}

/* ---------- responsive ---------- */
@media (max-width:1399.98px){
  .article-shell{grid-template-columns:220px minmax(0,1fr) 280px;gap:26px;}
  .article-head h1{font-size:40px;}
}
@media (max-width:1199.98px){
  .article-shell{grid-template-columns:minmax(0,1fr) 288px;}
  .toc-card{display:none;}
  .article-card{padding:36px 34px;}
}
@media (max-width:991.98px){
  .nav-links{display:none;}
  .nav-toggle{display:grid;}
  .article-shell{grid-template-columns:minmax(0,1fr);}
  .side{position:static;}
  .article-head{padding:34px 0 40px;}
  .article-head h1{font-size:33px;}
  .article-main{padding:48px 0 56px;}
  .cta-inner{grid-template-columns:minmax(0,1fr);}
  .cta-actions{justify-content:flex-start;}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:767.98px){
  .wrap{padding:0 16px;}
  .brand-text span{letter-spacing:1.6px;}
  .article-head h1{font-size:29px;}
  .meta-row{gap:8px;}
  .meta-pill{font-size:12.5px;padding:6px 12px;}
  .article-card{padding:26px 20px;border-radius:16px;}
  .article-body{font-size:16px;}
  .article-body h2{font-size:23px;margin-top:34px;}
  .article-body h3{font-size:18px;}
  .article-body table{font-size:14px;}
  .sec-head h2{font-size:25px;}
  .rel-grid{grid-template-columns:minmax(0,1fr);}
  .cta-inner h2{font-size:26px;}
  .cta-facts b{font-size:28px;}
}
@media (max-width:575.98px){
  .nav-right .btn-sm{display:none;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:26px;}
  .footer-bottom{flex-direction:column;}
  .pager a{flex:1 1 100%;}
}
@media (min-width:992px){
  .nav-drawer{display:none !important;}
}

/* roulang page: category2 */
:root{
  --ink:#06182E;
  --ink-2:#0B2137;
  --ink-3:#0E1A2B;
  --blue:#2D7DFF;
  --blue-soft:rgba(45,125,255,.14);
  --orange:#FF6A2B;
  --orange-soft:rgba(255,106,43,.14);
  --cyan:#12D6C0;
  --cyan-soft:rgba(18,214,192,.10);
  --mist:#F4F7FB;
  --text:#E8EFF8;
  --text-mute:#9BB0C9;
  --text-dark:#0E1A2B;
  --text-dark-mute:#5A6B82;
  --glass:rgba(255,255,255,.05);
  --glass-strong:rgba(255,255,255,.08);
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --radius-card:16px;
  --radius-btn:12px;
  --radius-pill:999px;
  --shadow-card:0 18px 44px rgba(0,0,0,.38);
  --shadow-mist:0 12px 30px rgba(16,34,64,.10);
  --sec-py:104px;
  --sec-py-sm:60px;
  --bs-primary-rgb:45,125,255;
  --bs-body-bg:#06182E;
  --bs-body-color:#E8EFF8;
  --bs-border-radius:12px;
  --bs-link-color:#12D6C0;
  --bs-link-hover-color:#2D7DFF;
}

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

html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}

body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC","Hiragino Sans GB",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--text);
  background-color:var(--ink);
  background-image:
    radial-gradient(900px 520px at 82% -8%, rgba(45,125,255,.16), transparent 62%),
    radial-gradient(720px 420px at 6% 12%, rgba(18,214,192,.08), transparent 66%),
    linear-gradient(rgba(255,255,255,.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.028) 1px, transparent 1px);
  background-size:auto, auto, 64px 64px, 64px 64px;
  background-position:center top, center top, center top, center top;
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%;display:block;}
a{color:var(--cyan);text-decoration:none;transition:color .18s ease-out,opacity .18s ease-out;}
a:hover{color:var(--blue);}
h1,h2,h3,h4{margin:0 0 .6em;font-weight:700;line-height:1.3;letter-spacing:.2px;}
p{margin:0 0 1.1em;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px;}

.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
.wrap-wide{max-width:1320px;}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(6,24,46,.72);
  border-bottom:1px solid transparent;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:background .18s ease-out,border-color .18s ease-out;
}
.site-header.is-scrolled{
  background:rgba(6,24,46,.9);
  border-bottom-color:var(--line);
}
.nav-split{
  height:68px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.brand{display:flex;align-items:center;gap:12px;color:var(--text);text-decoration:none;}
.brand:hover{color:var(--text);}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;
  display:flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:linear-gradient(135deg,rgba(45,125,255,.34),rgba(18,214,192,.22));
  border:1px solid var(--line-strong);
  color:var(--cyan);
  font-size:17px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text b{font-size:16.5px;letter-spacing:.6px;}
.brand-text span{font-size:11.5px;color:var(--text-mute);letter-spacing:2px;}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-links a{
  position:relative;
  padding:9px 14px;
  border-radius:var(--radius-pill);
  font-size:14.5px;
  color:var(--text-mute);
  white-space:nowrap;
}
.nav-links a:hover{color:var(--text);background:var(--glass);}
.nav-links a.active{
  color:var(--text);
  background:var(--blue-soft);
  border:1px solid rgba(45,125,255,.38);
}
.nav-right{display:flex;align-items:center;gap:12px;}
.nav-search{
  width:40px;height:40px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--text-mute);
  cursor:pointer;
  transition:all .18s ease-out;
}
.nav-search:hover{color:var(--cyan);border-color:rgba(18,214,192,.5);}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:12px;
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--text);
  font-size:17px;
  cursor:pointer;
}
.nav-drawer{display:none;}

/* ---------- buttons ---------- */
.btn-glow,
.btn-outline,
.btn-ghost,
.btn-sm{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;
  padding:13px 24px;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background .18s ease-out,color .18s ease-out,border-color .18s ease-out;
  text-decoration:none;
}
.btn-glow{
  background:var(--orange);
  color:#fff;
  box-shadow:0 0 0 1px rgba(255,106,43,.45),0 10px 26px rgba(255,106,43,.28);
}
.btn-glow:hover{
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(255,106,43,.7),0 14px 34px rgba(255,106,43,.42);
}
.btn-outline{
  background:transparent;
  color:var(--text);
  border-color:rgba(45,125,255,.55);
}
.btn-outline:hover{
  color:#fff;
  border-color:var(--blue);
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(45,125,255,.6),0 10px 30px rgba(45,125,255,.35);
}
.btn-ghost{
  background:transparent;
  color:var(--text-mute);
  border-color:var(--line);
  padding:10px 18px;
  font-size:14px;
}
.btn-ghost:hover{color:var(--text);border-color:var(--line-strong);}
.btn-sm{padding:10px 18px;font-size:14px;}

/* ---------- shared bits ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:1.6px;
  color:var(--cyan);
  text-transform:uppercase;
  margin-bottom:14px;
}
.dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--cyan);
  box-shadow:0 0 0 4px rgba(18,214,192,.16);
  display:inline-block;
}
.tag{
  display:inline-flex;align-items:center;
  padding:5px 13px;
  font-size:12.5px;
  border-radius:var(--radius-pill);
  color:var(--cyan);
  background:var(--cyan-soft);
  border:1px solid rgba(18,214,192,.24);
  white-space:nowrap;
}
.tag-orange{color:#FFB08A;background:var(--orange-soft);border-color:rgba(255,106,43,.28);}
.tag-blue{color:#9CC2FF;background:var(--blue-soft);border-color:rgba(45,125,255,.3);}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px;}
.sec-head{max-width:780px;margin-bottom:44px;}
.sec-head h2{font-size:32px;}
.sec-head p{color:var(--text-mute);font-size:16px;margin-bottom:0;}
.lead{font-size:17px;color:var(--text-mute);}
.mist .lead{color:var(--text-dark-mute);}
.sec-band{
  padding:var(--sec-py) 0;
  position:relative;
}
.sec-mist{
  background:var(--mist);
  color:var(--text-dark);
  box-shadow:var(--shadow-mist);
}
.sec-mist h1,
.sec-mist h2,
.sec-mist h3,
.sec-mist h4{color:var(--ink-3);}
.sec-mist .sec-head p,
.sec-mist .lead{color:var(--text-dark-mute);}
.sec-deep{
  background:var(--ink);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}

/* ---------- hero ---------- */
.cat-hero{
  padding:72px 0 88px;
  position:relative;
  overflow:hidden;
}
.cat-hero::after{
  content:"";
  position:absolute;
  right:-160px;top:-120px;
  width:520px;height:520px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(45,125,255,.20), transparent 68%);
  pointer-events:none;
}
.cat-hero-grid{
  display:grid;
  grid-template-columns:1.35fr .95fr;
  gap:52px;
  align-items:center;
}
.cat-hero h1{
  font-size:46px;
  line-height:1.24;
  margin-bottom:18px;
}
.cat-hero h1 em{
  font-style:normal;
  color:var(--cyan);
}
.cat-hero .lead{max-width:620px;font-size:16.5px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-mini{
  display:flex;flex-wrap:wrap;gap:26px;
  margin-top:34px;
  padding-top:26px;
  border-top:1px solid var(--line);
}
.hero-mini div{min-width:120px;}
.hero-mini b{
  display:block;
  font-size:26px;
  color:var(--cyan);
  font-variant-numeric:tabular-nums;
  line-height:1.2;
}
.hero-mini span{font-size:13.5px;color:var(--text-mute);}

.cat-visual{
  position:relative;
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:var(--ink-2);
  overflow:hidden;
  box-shadow:var(--shadow-card);
}
.cat-visual img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  opacity:.92;
}
.cat-visual-badge{
  position:absolute;
  left:18px;bottom:18px;
  display:flex;align-items:center;gap:10px;
  padding:11px 16px;
  border-radius:var(--radius-pill);
  background:rgba(6,24,46,.72);
  border:1px solid var(--line-strong);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  font-size:13.5px;
  color:var(--text);
}

/* ---------- key point cards 2x2 ---------- */
.grid-2x2{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:22px;
}
.card-glass{
  padding:28px 26px;
  border-radius:var(--radius-card);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:transform .18s ease-out,border-color .18s ease-out,background .18s ease-out;
}
.card-glass:hover{
  transform:translateY(-3px);
  border-color:rgba(45,125,255,.4);
  background:var(--glass-strong);
}
.card-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;
  border-radius:12px;
  border:1px solid rgba(45,125,255,.4);
  background:var(--blue-soft);
  color:#9CC2FF;
  font-size:14px;
  font-weight:700;
  margin-bottom:16px;
  font-variant-numeric:tabular-nums;
}
.card-glass h3{font-size:19.5px;margin-bottom:10px;}
.card-glass p{font-size:14.8px;color:var(--text-mute);margin-bottom:0;}
.card-list{margin-top:16px;}
.card-list li{
  position:relative;
  padding-left:18px;
  font-size:14.5px;
  color:var(--text-mute);
  margin-bottom:8px;
}
.card-list li::before{
  content:"";
  position:absolute;left:0;top:11px;
  width:7px;height:7px;
  border-radius:2px;
  background:var(--cyan);
  opacity:.85;
}

/* ---------- compare table ---------- */
.table-shell{
  overflow:hidden;
  border-radius:var(--radius-card);
  border:1px solid rgba(16,34,64,.10);
  background:#fff;
  box-shadow:var(--shadow-mist);
}
table.compare{
  width:100%;
  border-collapse:collapse;
  font-size:15px;
  color:var(--text-dark);
}
table.compare thead th{
  background:var(--ink);
  color:#fff;
  text-align:left;
  padding:18px 22px;
  font-size:14.5px;
  font-weight:600;
  letter-spacing:.4px;
  white-space:nowrap;
}
table.compare tbody td{
  padding:18px 22px;
  border-top:1px solid rgba(16,34,64,.08);
  vertical-align:top;
  line-height:1.75;
}
table.compare tbody tr:nth-child(even){background:#F4F7FB;}
table.compare tbody th{
  padding:18px 22px;
  border-top:1px solid rgba(16,34,64,.08);
  text-align:left;
  font-weight:700;
  color:var(--ink-3);
  font-size:15px;
  white-space:nowrap;
}
table.compare tbody tr:nth-child(even) th{background:#F4F7FB;}
.badge-state{
  display:inline-flex;align-items:center;gap:7px;
  padding:4px 12px;
  border-radius:var(--radius-pill);
  font-size:12.5px;
  white-space:nowrap;
}
.state-ok{background:rgba(18,214,192,.14);color:#0A7F72;}
.state-warn{background:rgba(255,106,43,.14);color:#B24A15;}

/* ---------- mistakes list ---------- */
.mistake-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:22px;
}
.mistake-col{
  padding:30px 28px;
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:var(--glass);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.mistake-col h3{
  display:flex;align-items:center;gap:10px;
  font-size:19px;
  margin-bottom:18px;
}
.mistake-col.bad h3 i{color:var(--orange);}
.mistake-col.good h3 i{color:var(--cyan);}
.mistake-col li{
  display:flex;gap:12px;
  font-size:14.8px;
  color:var(--text-mute);
  padding:12px 0;
  border-top:1px solid rgba(255,255,255,.07);
}
.mistake-col li:first-child{border-top:none;}
.mistake-col li i{margin-top:6px;flex:0 0 auto;font-size:13px;}
.mistake-col.bad li i{color:var(--orange);}
.mistake-col.good li i{color:var(--cyan);}

/* ---------- mid link band ---------- */
.link-band{
  display:grid;
  grid-template-columns:1fr auto;
  gap:26px;
  align-items:center;
  padding:30px 34px;
  border-radius:var(--radius-card);
  border:1px solid rgba(45,125,255,.32);
  background:linear-gradient(120deg,rgba(45,125,255,.12),rgba(18,214,192,.06));
}
.link-band h3{font-size:20px;margin-bottom:8px;}
.link-band p{margin:0;font-size:15px;color:var(--text-mute);}

/* ---------- faq ---------- */
.faq-list{max-width:900px;}
.faq-item{
  border-radius:var(--radius-card);
  background:#fff;
  border:1px solid rgba(16,34,64,.10);
  box-shadow:var(--shadow-mist);
  margin-bottom:16px;
  overflow:hidden;
  position:relative;
}
.faq-item::before{
  content:"";
  position:absolute;left:0;top:0;bottom:0;
  width:3px;
  background:var(--blue);
  opacity:.85;
}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 26px 22px 30px;
  background:transparent;
  border:0;
  text-align:left;
  font-size:17.5px;
  font-weight:700;
  color:var(--ink-3);
  cursor:pointer;
}
.faq-q i{
  flex:0 0 auto;
  color:var(--blue);
  font-size:15px;
  transition:transform .18s ease-out;
}
.faq-item.open .faq-q i{transform:rotate(45deg);}
.faq-a{
  display:none;
  padding:0 26px 24px 30px;
  font-size:15px;
  line-height:1.85;
  color:var(--text-dark-mute);
}
.faq-item.open .faq-a{display:block;}

/* ---------- cta ---------- */
.cta-band{
  padding:64px 0 76px;
}
.cta-panel{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:44px;
  padding:48px 46px;
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:rgba(255,255,255,.05);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
}
.cta-panel h2{font-size:30px;margin-bottom:14px;}
.cta-panel p{color:var(--text-mute);font-size:15.5px;}
.field-row{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:16px;
  margin-bottom:16px;
}
.field{display:flex;flex-direction:column;gap:8px;}
.field label{font-size:13.5px;color:var(--text-mute);}
.field label em{color:var(--orange);font-style:normal;margin-left:4px;}
.field input,
.field select,
.field textarea{
  width:100%;
  padding:12px 14px;
  font-size:15px;
  font-family:inherit;
  color:var(--text);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  transition:border-color .18s ease-out,box-shadow .18s ease-out,background .18s ease-out;
}
.field textarea{resize:vertical;min-height:96px;}
.field input:focus,
.field select:focus,
.field textarea:focus{
  outline:none;
  border-color:var(--cyan);
  box-shadow:0 0 0 3px rgba(18,214,192,.18);
  background:rgba(255,255,255,.07);
}
.field select option{color:#0E1A2B;}
.form-note{font-size:13px;color:var(--text-mute);margin-top:12px;}

/* ---------- entry tiles ---------- */
.tile-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:22px;
}
.tile{
  display:block;
  padding:28px 26px;
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--text);
  text-decoration:none;
  transition:transform .18s ease-out,border-color .18s ease-out,background .18s ease-out;
}
.tile:hover{
  transform:translateY(-3px);
  color:var(--text);
  border-color:rgba(18,214,192,.42);
  background:var(--glass-strong);
}
.tile i.tile-ico{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;
  border-radius:12px;
  background:var(--cyan-soft);
  border:1px solid rgba(18,214,192,.26);
  color:var(--cyan);
  font-size:16px;
  margin-bottom:16px;
}
.tile h3{font-size:18px;margin-bottom:8px;}
.tile p{font-size:14.5px;color:var(--text-mute);margin-bottom:14px;}
.tile .more{font-size:13.5px;color:var(--cyan);display:inline-flex;align-items:center;gap:7px;}

/* ---------- wide figure ---------- */
.wide-figure{
  border-radius:var(--radius-card);
  overflow:hidden;
  border:1px solid rgba(16,34,64,.10);
  box-shadow:var(--shadow-mist);
  background:var(--ink-2);
}
.wide-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.wide-figure figcaption{
  padding:14px 20px;
  font-size:13.5px;
  color:var(--text-dark-mute);
  background:#fff;
}

/* ---------- footer ---------- */
.site-footer{
  background:#04101F;
  border-top:1px solid var(--line);
  padding:64px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:36px;
  padding-bottom:40px;
  border-bottom:1px solid var(--line);
}
.footer-brand p{
  font-size:14.5px;
  color:var(--text-mute);
  margin-top:18px;
  max-width:340px;
}
.footer-col h4{
  font-size:15px;
  margin-bottom:16px;
  color:var(--text);
  letter-spacing:.6px;
}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{font-size:14.5px;color:var(--text-mute);}
.footer-col ul a:hover{color:var(--cyan);}
.footer-col address{
  font-style:normal;
  font-size:14.5px;
  color:var(--text-mute);
  line-height:1.9;
}
.footer-col address a{color:var(--cyan);}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  padding-top:24px;
  font-size:13.5px;
  color:var(--text-mute);
}

/* ---------- responsive ---------- */
@media (max-width:1200px){
  .cat-hero h1{font-size:42px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;}
}
@media (max-width:992px){
  :root{--sec-py:72px;}
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .nav-right .btn-glow{display:none;}
  .nav-drawer{
    display:none;
    padding:14px 20px 22px;
    background:rgba(6,24,46,.97);
    border-top:1px solid var(--line);
  }
  .nav-drawer.open{display:block;}
  .nav-drawer a{
    display:block;
    padding:13px 14px;
    border-radius:var(--radius-btn);
    font-size:15px;
    color:var(--text-mute);
  }
  .nav-drawer a.active{color:var(--text);background:var(--blue-soft);}
  .drawer-cta{margin-top:14px;}
  .cat-hero{padding:52px 0 64px;}
  .cat-hero-grid{grid-template-columns:1fr;gap:36px;}
  .cat-hero h1{font-size:34px;}
  .cat-hero .lead{font-size:16px;}
  .cat-visual{order:2;}
  .grid-2x2{grid-template-columns:1fr;}
  .mistake-grid{grid-template-columns:1fr;}
  .tile-grid{grid-template-columns:1fr;}
  .cta-panel{grid-template-columns:1fr;padding:34px 26px;}
  .link-band{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .sec-head h2{font-size:26px;}
  .cta-panel h2{font-size:24px;}
}
@media (max-width:768px){
  .field-row{grid-template-columns:1fr;}
  table.compare{font-size:14.5px;}
  table.compare thead{display:none;}
  table.compare tbody tr{
    display:block;
    padding:16px 18px;
    border-top:1px solid rgba(16,34,64,.10);
  }
  table.compare tbody tr:nth-child(even){background:#F4F7FB;}
  table.compare tbody th,
  table.compare tbody td{
    display:flex;
    gap:14px;
    padding:8px 0;
    border:0;
    white-space:normal;
  }
  table.compare tbody tr:nth-child(even) th{background:transparent;}
  table.compare tbody td::before,
  table.compare tbody th::before{
    content:attr(data-label);
    flex:0 0 96px;
    color:var(--text-dark-mute);
    font-weight:600;
    font-size:13.5px;
  }
}
@media (max-width:576px){
  :root{--sec-py:56px;}
  body{font-size:16px;}
  .wrap{padding:0 16px;}
  .cat-hero h1{font-size:30px;}
  .brand-text b{font-size:15px;}
  .brand-text span{font-size:10.5px;letter-spacing:1.4px;}
  .hero-mini{gap:18px;}
  .hero-mini b{font-size:22px;}
  .hero-actions .btn-glow,
  .hero-actions .btn-outline{width:100%;min-height:48px;}
  .card-glass{padding:22px 20px;}
  .mistake-col{padding:24px 20px;}
  .faq-q{font-size:16px;padding:18px 18px 18px 22px;}
  .faq-a{padding:0 18px 20px 22px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .link-band{padding:24px 20px;}
  table.compare tbody td::before,
  table.compare tbody th::before{flex:0 0 84px;}
}