/* roulang page: index */
:root{
  --ink:#0b1c2c;
  --ink-2:#26425e;
  --muted:#6c8299;
  --line:#e2ecf5;
  --line-2:#cfe0ef;
  --bg:#f3f7fb;
  --surface:#ffffff;
  --brand:#0f7bd6;
  --brand-dark:#0a5aa8;
  --teal:#12b8a6;
  --accent:#f6b93b;
  --grad:linear-gradient(135deg,#0f7bd6 0%,#12b8a6 100%);
  --grad-deep:linear-gradient(160deg,#071a2b 0%,#0b2942 46%,#0d3a52 100%);
  --r-sm:10px; --r:14px; --r-lg:22px; --r-xl:28px;
  --sh-1:0 2px 10px rgba(11,28,44,.05);
  --sh-2:0 10px 28px rgba(11,28,44,.09);
  --sh-3:0 20px 50px rgba(11,28,44,.16);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;padding:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  font-size:15.5px;line-height:1.78;color:var(--ink);background:var(--bg);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-dark);}
button{font-family:inherit;}
h1,h2,h3,h4,h5{margin:0;color:var(--ink);font-weight:800;letter-spacing:-.2px;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
.container{width:100%;max-width:1180px;margin:0 auto;padding-left:22px;padding-right:22px;}
:focus-visible{outline:3px solid rgba(15,123,214,.45);outline-offset:2px;border-radius:6px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-stuck{box-shadow:var(--sh-2);}
.navbar{min-height:66px;padding:0;}
.brand{display:flex;align-items:center;gap:10px;padding:0;margin-right:18px;}
.brand-mark{
  width:36px;height:36px;border-radius:11px;background:var(--grad);
  display:grid;place-items:center;color:#fff;
  box-shadow:0 8px 18px rgba(15,123,214,.30);flex:0 0 auto;
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{font-weight:800;font-size:17px;color:var(--ink);letter-spacing:.2px;white-space:nowrap;}
.nav-links{align-items:center;gap:4px;}
.nav-links .nav-link{
  position:relative;color:var(--ink-2);font-weight:600;font-size:15px;
  padding:8px 14px;border-radius:9px;transition:color .2s ease,background .2s ease;
}
.nav-links .nav-link:hover{color:var(--brand);background:rgba(15,123,214,.07);}
.nav-links .nav-link.active{color:var(--brand);}
.nav-links .nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:1px;height:2px;
  border-radius:2px;background:var(--grad);
}
.nav-right{display:flex;align-items:center;gap:14px;margin-left:auto;}
.nav-stage{
  display:inline-flex;align-items:center;gap:7px;font-size:12.5px;font-weight:700;
  color:#0a7a6d;background:rgba(18,184,166,.12);
  border:1px solid rgba(18,184,166,.30);
  padding:5px 12px;border-radius:999px;white-space:nowrap;
}
.nav-stage .dot{
  width:7px;height:7px;border-radius:50%;background:var(--teal);
  box-shadow:0 0 0 0 rgba(18,184,166,.6);animation:pulse 2.2s infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(18,184,166,.55);}
  70%{box-shadow:0 0 0 8px rgba(18,184,166,0);}
  100%{box-shadow:0 0 0 0 rgba(18,184,166,0);}
}
.navbar-toggler{border:1px solid var(--line-2);border-radius:10px;padding:6px 10px;}
.navbar-toggler:focus{box-shadow:0 0 0 3px rgba(15,123,214,.18);}
.navbar-toggler-icon{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3E%3Cpath stroke='%230b1c2c' stroke-linecap='round' stroke-width='2' d='M4 8h22M4 15h22M4 22h22'/%3E%3C/svg%3E");
}

/* ---------- buttons ---------- */
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--grad);color:#fff;border:none;font-weight:700;font-size:14.5px;
  padding:10px 22px;border-radius:10px;
  box-shadow:0 8px 20px rgba(15,123,214,.26);
  transition:transform .22s ease,box-shadow .22s ease,filter .22s ease;
}
.btn-brand:hover,.btn-brand:focus{color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(15,123,214,.34);filter:saturate(1.1);}
.btn-brand:active{transform:translateY(0);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:#fff;color:var(--ink);border:1px solid var(--line-2);font-weight:700;font-size:14.5px;
  padding:10px 22px;border-radius:10px;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease,color .22s ease;
}
.btn-ghost:hover,.btn-ghost:focus{color:var(--brand);border-color:var(--brand);transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-on-dark{
  background:rgba(255,255,255,.10);color:#e8f4ff;border:1px solid rgba(255,255,255,.26);
  font-weight:700;font-size:14.5px;padding:10px 22px;border-radius:10px;
  transition:.22s ease;display:inline-flex;align-items:center;gap:8px;
}
.btn-on-dark:hover{background:rgba(255,255,255,.18);color:#fff;transform:translateY(-2px);}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--grad-deep);color:#fff;padding:62px 0 74px;}
.hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:.15;filter:saturate(.85);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(900px 420px at 80% 10%,rgba(18,184,166,.30),transparent 62%),
    radial-gradient(700px 400px at 6% 90%,rgba(15,123,214,.34),transparent 60%);
}
.hero-inner{position:relative;z-index:2;}
.status-bar{
  display:inline-flex;align-items:center;gap:10px;font-size:13px;font-weight:600;
  color:#cbe4f8;background:rgba(255,255,255,.09);
  border:1px solid rgba(255,255,255,.17);
  padding:6px 15px;border-radius:999px;margin-bottom:24px;
}
.status-bar .bar-dot{width:7px;height:7px;border-radius:50%;background:var(--accent);flex:0 0 auto;}
.hero h1{
  font-size:clamp(27px,4.1vw,44px);line-height:1.28;font-weight:800;
  letter-spacing:-.6px;margin:0 0 18px;max-width:900px;color:#fff;
}
.hero-lead{font-size:16px;line-height:1.86;color:#c3daed;max-width:790px;margin:0 0 26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:34px;}
.hero-icons{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:12px;margin-bottom:28px;}
.hero-icon{
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.14);
  border-radius:14px;padding:16px 10px;text-align:center;
  transition:transform .24s ease,background .24s ease,border-color .24s ease;
}
.hero-icon:hover{background:rgba(255,255,255,.13);transform:translateY(-3px);border-color:rgba(18,184,166,.55);}
.hero-icon .ic{
  width:34px;height:34px;margin:0 auto 10px;border-radius:10px;
  background:var(--grad);display:grid;place-items:center;color:#fff;
  box-shadow:0 6px 14px rgba(15,123,214,.35);
}
.hero-icon .ic svg{width:18px;height:18px;}
.hero-icon .lb{display:block;font-size:12.5px;font-weight:700;color:#dcecfa;line-height:1.4;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;}
.tag-pill{
  font-size:13px;font-weight:600;color:#b9e6df;background:rgba(18,184,166,.14);
  border:1px solid rgba(18,184,166,.34);padding:6px 15px;border-radius:999px;
}

/* ---------- sections ---------- */
.section{padding:70px 0;}
.section--tint{background:linear-gradient(180deg,#eaf3fa 0%,#f4f8fc 100%);}
.section--deep{background:var(--grad-deep);color:#c9dfef;}
.section--deep h2,.section--deep h3{color:#fff;}
.section-head{max-width:790px;margin-bottom:40px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;font-size:12.5px;font-weight:800;
  letter-spacing:1.6px;color:var(--brand);margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:3px;border-radius:3px;background:var(--grad);}
.section-head.center .eyebrow::after{content:"";width:22px;height:3px;border-radius:3px;background:var(--grad);}
.section-head h2{font-size:clamp(22px,2.8vw,30px);line-height:1.35;margin-bottom:14px;}
.section-head p{color:var(--muted);font-size:15px;line-height:1.85;}
.section--deep .section-head p{color:#a9c4d8;}
.section--deep .eyebrow{color:#5fe0cd;}

/* ---------- cards ---------- */
.card-x{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px 24px;box-shadow:var(--sh-1);height:100%;
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.card-x:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:var(--line-2);}
.card-x h3{font-size:17px;line-height:1.5;margin-bottom:9px;}
.card-x p{font-size:14.3px;color:var(--muted);line-height:1.78;}
.icon-badge{
  width:44px;height:44px;border-radius:12px;background:var(--grad);color:#fff;
  display:grid;place-items:center;margin-bottom:16px;
  box-shadow:0 8px 18px rgba(15,123,214,.24);
}
.icon-badge svg{width:22px;height:22px;}
.icon-badge.soft{background:rgba(15,123,214,.10);color:var(--brand);box-shadow:none;}

.metric{
  position:relative;overflow:hidden;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);padding:28px 22px 24px;box-shadow:var(--sh-1);height:100%;
  transition:transform .24s ease,box-shadow .24s ease;
}
.metric:hover{transform:translateY(-4px);box-shadow:var(--sh-3);}
.metric::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--grad);}
.metric .num{
  font-size:38px;font-weight:800;letter-spacing:-1.2px;line-height:1.1;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.metric .num small{font-size:15px;font-weight:800;margin-left:5px;letter-spacing:0;}
.metric .label{font-size:14px;font-weight:700;color:var(--ink-2);margin-top:8px;}
.metric .desc{font-size:13.2px;color:var(--muted);margin-top:5px;line-height:1.65;}

.card-media{
  display:flex;flex-direction:column;height:100%;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;
}
.card-media:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:var(--line-2);}
.card-media .thumb{aspect-ratio:16/10;overflow:hidden;background:#e6eff8;}
.card-media .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .55s ease;}
.card-media:hover .thumb img{transform:scale(1.06);}
.card-media .body{padding:20px;display:flex;flex-direction:column;gap:9px;flex:1;}
.card-media h3{font-size:16.5px;line-height:1.5;}
.card-media p{font-size:14px;color:var(--muted);line-height:1.75;margin:0;}

.badge-soft{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;
  color:var(--brand);background:rgba(15,123,214,.09);
  border:1px solid rgba(15,123,214,.16);
  padding:4px 11px;border-radius:999px;
}
.badge-teal{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;
  color:#0a7a6d;background:rgba(18,184,166,.12);
  border:1px solid rgba(18,184,166,.28);
  padding:4px 11px;border-radius:999px;
}
.badge-amber{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;
  color:#8a6100;background:rgba(246,185,59,.16);
  border:1px solid rgba(246,185,59,.38);
  padding:4px 11px;border-radius:999px;
}

/* ---------- compare ---------- */
.compare-wrap{overflow-x:auto;border-radius:var(--r-lg);box-shadow:var(--sh-2);}
.compare-table{width:100%;min-width:640px;border-collapse:separate;border-spacing:0;background:#fff;}
.compare-table thead th{
  background:#f2f8fd;font-size:13.5px;font-weight:800;color:var(--ink-2);
  padding:16px 20px;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap;
}
.compare-table tbody td{
  padding:16px 20px;font-size:14.3px;color:var(--ink-2);
  border-bottom:1px solid var(--line);vertical-align:middle;
}
.compare-table tbody tr:last-child td{border-bottom:none;}
.compare-table tbody tr:hover td{background:#f8fbfe;}
.compare-table td.hl{color:var(--brand);font-weight:700;}

/* ---------- timeline ---------- */
.timeline{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;position:relative;}
.tl-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px 22px;box-shadow:var(--sh-1);position:relative;
  transition:transform .24s ease,box-shadow .24s ease;
}
.tl-item:hover{transform:translateY(-4px);box-shadow:var(--sh-3);}
.tl-item .tl-idx{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;background:rgba(15,123,214,.10);
  color:var(--brand);font-weight:800;font-size:14px;margin-bottom:14px;
}
.tl-item h3{font-size:16.5px;margin-bottom:8px;}
.tl-item p{font-size:14px;color:var(--muted);line-height:1.75;}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
.step{
  display:flex;gap:18px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);padding:24px 24px;box-shadow:var(--sh-1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:var(--line-2);}
.step-no{
  flex:0 0 auto;width:42px;height:42px;border-radius:12px;background:var(--grad);
  color:#fff;font-weight:800;font-size:16px;display:grid;place-items:center;
  box-shadow:0 8px 18px rgba(15,123,214,.24);
}
.step h3{font-size:16.5px;margin-bottom:7px;}
.step p{font-size:14.2px;color:var(--muted);line-height:1.75;}

/* ---------- guarantee ---------- */
.guarantee{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;}
.g-item{
  display:flex;align-items:center;gap:13px;background:#fff;border:1px solid var(--line);
  border-radius:14px;padding:17px 18px;box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease;
}
.g-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.g-item .gi{
  flex:0 0 auto;width:36px;height:36px;border-radius:10px;
  background:rgba(18,184,166,.13);color:#0a7a6d;display:grid;place-items:center;
}
.g-item .gi svg{width:18px;height:18px;}
.g-item .gt{font-size:14px;font-weight:700;color:var(--ink-2);line-height:1.5;}

/* ---------- deep trust ---------- */
.trust-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}
.trust-card{
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.15);
  border-radius:var(--r-lg);padding:26px 22px;backdrop-filter:blur(4px);
  transition:transform .24s ease,background .24s ease,border-color .24s ease;
}
.trust-card:hover{transform:translateY(-4px);background:rgba(255,255,255,.12);border-color:rgba(95,224,205,.5);}
.trust-card .ti{
  width:42px;height:42px;border-radius:12px;background:rgba(18,184,166,.22);
  color:#7ff0dd;display:grid;place-items:center;margin-bottom:16px;
}
.trust-card .ti svg{width:21px;height:21px;}
.trust-card h3{color:#fff;font-size:16.5px;margin-bottom:8px;}
.trust-card p{color:#a9c4d8;font-size:14px;line-height:1.75;}

/* ---------- news ---------- */
.news-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-2);padding:10px 6px;height:100%;
}
.news-item{
  display:flex;align-items:flex-start;gap:14px;padding:16px 18px;
  border-radius:12px;transition:background .2s ease,transform .2s ease;
}
.news-item:hover{background:#f4f9fe;transform:translateX(3px);}
.news-item .n-dot{
  flex:0 0 auto;width:8px;height:8px;border-radius:50%;background:var(--grad);margin-top:9px;
}
.news-item .n-main{flex:1;min-width:0;}
.news-item .n-title{
  display:block;font-size:15px;font-weight:700;color:var(--ink);line-height:1.6;
  margin-bottom:3px;word-break:break-word;
}
.news-item:hover .n-title{color:var(--brand);}
.news-item .n-sum{font-size:13.4px;color:var(--muted);line-height:1.7;margin:0;}
.news-item .n-date{
  flex:0 0 auto;font-size:12.5px;color:#93a9bd;font-weight:600;white-space:nowrap;padding-top:2px;
}
.news-empty{
  padding:26px 20px;font-size:14.5px;color:var(--muted);text-align:center;
  background:#fff;border:1px dashed var(--line-2);border-radius:var(--r);
}
.side-reco{
  background:linear-gradient(160deg,#f6fbff 0%,#eef6fd 100%);
  border:1px solid var(--line);border-radius:var(--r-lg);padding:24px 22px;
  box-shadow:var(--sh-1);height:100%;
}
.side-reco h3{font-size:16.5px;margin-bottom:14px;}
.reco-link{
  display:flex;align-items:center;gap:10px;padding:11px 12px;border-radius:10px;
  font-size:14px;font-weight:600;color:var(--ink-2);background:#fff;
  border:1px solid var(--line);margin-bottom:10px;
  transition:transform .2s ease,border-color .2s ease,color .2s ease,box-shadow .2s ease;
}
.reco-link:last-child{margin-bottom:0;}
.reco-link:hover{color:var(--brand);border-color:var(--brand);transform:translateX(3px);box-shadow:var(--sh-1);}
.reco-link .rn{
  flex:0 0 auto;width:22px;height:22px;border-radius:7px;background:rgba(15,123,214,.10);
  color:var(--brand);font-size:12px;font-weight:800;display:grid;place-items:center;
}

/* ---------- quick answers ---------- */
.qa-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px 22px;box-shadow:var(--sh-1);height:100%;
  transition:transform .24s ease,box-shadow .24s ease;
}
.qa-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);}
.qa-card h3{font-size:16px;margin-bottom:10px;line-height:1.55;}
.qa-card p{font-size:14.2px;color:var(--muted);line-height:1.8;}

/* ---------- accordion ---------- */
.accordion-item{
  border:1px solid var(--line) !important;border-radius:14px !important;
  margin-bottom:12px;overflow:hidden;background:#fff;box-shadow:var(--sh-1);
}
.accordion-button{
  font-size:15.5px;font-weight:700;color:var(--ink);background:#fff;
  padding:18px 22px;box-shadow:none !important;
}
.accordion-button:not(.collapsed){background:rgba(15,123,214,.06);color:var(--brand);}
.accordion-button:focus{box-shadow:0 0 0 3px rgba(15,123,214,.16) !important;}
.accordion-body{padding:4px 22px 20px;font-size:14.4px;color:var(--ink-2);line-height:1.85;}

/* ---------- form ---------- */
.form-shell{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);
  padding:36px 34px;box-shadow:var(--sh-2);
}
.form-shell h2{font-size:clamp(21px,2.6vw,27px);margin-bottom:12px;}
.form-shell .form-desc{color:var(--muted);font-size:14.6px;line-height:1.82;margin-bottom:24px;}
.form-label{font-size:13.8px;font-weight:700;color:var(--ink-2);margin-bottom:7px;}
.form-control,.form-select{
  border:1px solid var(--line-2);border-radius:10px;padding:11px 14px;
  font-size:14.4px;color:var(--ink);background:#fbfdff;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.form-control:focus,.form-select:focus{
  border-color:var(--brand);background:#fff;
  box-shadow:0 0 0 3px rgba(15,123,214,.14);
}
.form-note{font-size:12.8px;color:#93a9bd;margin-top:14px;line-height:1.7;}
.form-msg{
  display:none;margin-top:16px;padding:12px 16px;border-radius:10px;
  font-size:14px;font-weight:600;color:#0a7a6d;background:rgba(18,184,166,.12);
  border:1px solid rgba(18,184,166,.30);
}
.form-msg.show{display:block;}

/* ---------- footer ---------- */
.site-footer{background:#071a2b;color:#9fb6cb;padding:58px 0 0;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:34px;padding-bottom:38px;}
.site-footer h4{
  color:#ffffff;font-size:15px;font-weight:800;margin-bottom:16px;letter-spacing:.3px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{box-shadow:none;}
.footer-brand span{color:#fff;font-weight:800;font-size:16px;}
.footer-about{line-height:1.85;color:#8fa8bd;font-size:13.6px;}
.footer-list li{margin-bottom:10px;}
.footer-list a{color:#9fb6cb;font-size:14px;transition:color .2s ease,padding-left .2s ease;}
.footer-list a:hover{color:#5fe0cd;padding-left:4px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.10);
  padding:20px 0;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:#7b94aa;
}
.footer-bottom .fb-right{color:#6c8499;}

/* ---------- responsive ---------- */
@media (max-width:1100px){
  .hero-icons{grid-template-columns:repeat(3,minmax(0,1fr));}
  .trust-grid,.guarantee,.timeline{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:991px){
  .navbar-collapse{
    background:#fff;border:1px solid var(--line);border-radius:14px;
    margin-top:12px;padding:14px;box-shadow:var(--sh-2);
  }
  .nav-links{align-items:stretch;gap:2px;}
  .nav-links .nav-link{padding:11px 14px;border-radius:9px;}
  .nav-links .nav-link.active::after{display:none;}
  .nav-links .nav-link.active{background:rgba(15,123,214,.09);}
  .nav-right{margin:12px 0 4px;flex-wrap:wrap;justify-content:flex-start;}
  .section{padding:56px 0;}
  .hero{padding:52px 0 60px;}
  .steps{grid-template-columns:1fr;}
}
@media (max-width:767px){
  body{font-size:15px;}
  .hero-icons{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;}
  .hero-icon{padding:13px 8px;}
  .hero-icon .lb{font-size:11.6px;}
  .hero-lead{font-size:15px;}
  .section{padding:48px 0;}
  .section-head{margin-bottom:30px;}
  .form-shell{padding:26px 20px;}
  .trust-grid,.guarantee,.timeline{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .news-item .n-date{display:none;}
  .btn-brand,.btn-ghost,.btn-on-dark{min-height:44px;}
}
@media (max-width:520px){
  .container{padding-left:16px;padding-right:16px;}
  .hero-icons{grid-template-columns:repeat(2,minmax(0,1fr));}
  .hero h1{letter-spacing:-.3px;}
  .hero-actions .btn-brand,.hero-actions .btn-on-dark{flex:1 1 100%;}
  .metric .num{font-size:32px;}
  .brand-text{font-size:15.5px;}
}

/* roulang page: article */
:root{
  --ink:#0b1c2c;
  --ink-2:#26425e;
  --muted:#6c8299;
  --line:#e2ecf5;
  --line-2:#cfe0ef;
  --bg:#f3f7fb;
  --surface:#ffffff;
  --brand:#0f7bd6;
  --brand-dark:#0a5aa8;
  --teal:#12b8a6;
  --accent:#f6b93b;
  --grad:linear-gradient(135deg,#0f7bd6 0%,#12b8a6 100%);
  --grad-deep:linear-gradient(160deg,#071a2b 0%,#0b2942 46%,#0d3a52 100%);
  --r-sm:10px;
  --r:14px;
  --r-lg:22px;
  --r-xl:28px;
  --sh-1:0 2px 10px rgba(11,28,44,.05);
  --sh-2:0 10px 28px rgba(11,28,44,.09);
  --sh-3:0 20px 50px rgba(11,28,44,.16);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;padding:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  font-size:15.5px;line-height:1.78;color:var(--ink);background:var(--bg);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-dark);}
button{font-family:inherit;}
p{margin:0 0 16px;}
.container{width:100%;max-width:1180px;margin:0 auto;padding-left:22px;padding-right:22px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-stuck{box-shadow:var(--sh-2);}
.navbar{min-height:66px;padding:0;}
.brand{display:flex;align-items:center;gap:10px;padding:0;margin-right:18px;}
.brand-mark{
  width:36px;height:36px;border-radius:11px;background:var(--grad);
  display:grid;place-items:center;color:#fff;
  box-shadow:0 8px 18px rgba(15,123,214,.30);flex:0 0 auto;
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{font-weight:800;font-size:17px;color:var(--ink);letter-spacing:.2px;white-space:nowrap;}
.nav-links{align-items:center;gap:4px;}
.nav-links .nav-link{
  position:relative;color:var(--ink-2);font-weight:600;font-size:15px;
  padding:8px 14px;border-radius:9px;transition:color .2s ease,background .2s ease;
}
.nav-links .nav-link:hover{color:var(--brand);background:rgba(15,123,214,.07);}
.nav-links .nav-link.active{color:var(--brand);}
.nav-links .nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:1px;height:2px;
  border-radius:2px;background:var(--grad);
}
.nav-right{display:flex;align-items:center;gap:14px;margin-left:auto;}
.nav-stage{
  display:inline-flex;align-items:center;gap:7px;font-size:12.5px;font-weight:700;
  color:#0a7a6d;background:rgba(18,184,166,.12);
  border:1px solid rgba(18,184,166,.30);
  padding:5px 12px;border-radius:999px;white-space:nowrap;
}
.nav-stage .dot{
  width:7px;height:7px;border-radius:50%;background:var(--teal);
  box-shadow:0 0 0 0 rgba(18,184,166,.6);animation:pulse 2.2s infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(18,184,166,.55);}
  70%{box-shadow:0 0 0 8px rgba(18,184,166,0);}
  100%{box-shadow:0 0 0 0 rgba(18,184,166,0);}
}
.navbar-toggler{border:1px solid var(--line-2);border-radius:10px;padding:6px 10px;}
.navbar-toggler:focus{box-shadow:0 0 0 3px rgba(15,123,214,.18);}
.navbar-toggler-icon{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3E%3Cpath stroke='%230b1c2c' stroke-linecap='round' stroke-width='2' d='M4 8h22M4 15h22M4 22h22'/%3E%3C/svg%3E");
}

/* ---------- buttons ---------- */
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--grad);color:#fff;border:none;font-weight:700;font-size:14.5px;
  padding:10px 22px;border-radius:10px;
  box-shadow:0 8px 20px rgba(15,123,214,.26);
  transition:transform .22s ease,box-shadow .22s ease,filter .22s ease;
}
.btn-brand:hover,.btn-brand:focus{color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(15,123,214,.34);filter:saturate(1.1);}
.btn-brand:active{transform:translateY(0);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:#fff;color:var(--ink);border:1px solid var(--line-2);font-weight:700;font-size:14.5px;
  padding:10px 22px;border-radius:10px;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease,color .22s ease;
}
.btn-ghost:hover,.btn-ghost:focus{color:var(--brand);border-color:var(--brand);transform:translateY(-2px);box-shadow:var(--sh-2);}
a:focus-visible,button:focus-visible,.btn-brand:focus-visible,.btn-ghost:focus-visible{
  outline:3px solid rgba(15,123,214,.35);outline-offset:2px;
}

/* ---------- article head ---------- */
.article-head{
  position:relative;overflow:hidden;background:var(--grad-deep);color:#fff;
  padding:42px 0 58px;
}
.article-head .head-bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/捕鱼大咖2026下载.webp");
  background-size:cover;background-position:center;opacity:.14;
}
.article-head::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(900px 420px at 82% 6%,rgba(18,184,166,.28),transparent 62%),
    radial-gradient(700px 420px at 4% 92%,rgba(15,123,214,.30),transparent 60%);
}
.article-head .container{position:relative;z-index:2;}
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:#9fc0da;margin-bottom:20px;
}
.crumbs a{color:#bfd9ee;font-weight:600;}
.crumbs a:hover{color:#fff;}
.crumbs .sep{opacity:.55;}
.crumbs .now{color:#7fe6d8;font-weight:700;}
.head-grid{
  display:grid;grid-template-columns:1.32fr .88fr;
  gap:40px;align-items:start;
}
.article-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;color:#8ef0e1;
  background:rgba(18,184,166,.16);
  border:1px solid rgba(18,184,166,.38);
  padding:5px 14px;border-radius:999px;margin-bottom:16px;
}
.article-head h1{
  font-size:clamp(24px,3.4vw,38px);line-height:1.32;font-weight:800;
  letter-spacing:-.5px;margin:0 0 16px;color:#fff;
}
.article-lead{
  font-size:15.5px;line-height:1.9;color:#c3daed;margin:0 0 22px;
}
.head-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;
  font-size:13px;color:#9fc0da;
}
.head-meta .hm-item{display:inline-flex;align-items:center;gap:6px;}
.head-meta .hm-item strong{color:#dcecf9;font-weight:700;}
.hm-dot{width:4px;height:4px;border-radius:50%;background:rgba(159,192,218,.55);}
.head-card{
  background:rgba(255,255,255,.97);border-radius:var(--r-lg);
  padding:12px;box-shadow:var(--sh-3);color:var(--ink);
  transition:transform .28s ease,box-shadow .28s ease;
}
.head-card:hover{transform:translateY(-4px);box-shadow:0 26px 60px rgba(3,14,24,.34);}
.head-card img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:calc(var(--r-lg) - 8px);
}
.hc-body{padding:14px 8px 6px;}
.hc-title{font-size:15px;font-weight:800;margin:0 0 6px;color:var(--ink);}
.hc-desc{font-size:13px;line-height:1.72;color:var(--muted);margin:0;}

/* ---------- article body ---------- */
.article-main{padding:54px 0 10px;}
.article-prose{
  max-width:900px;margin:0 auto;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);box-shadow:var(--sh-1);
  padding:38px 44px;
  font-size:16px;line-height:1.86;color:var(--ink-2);
}
.article-prose h2{
  position:relative;font-size:22px;font-weight:800;color:var(--ink);
  margin:36px 0 14px;padding-left:16px;line-height:1.5;
}
.article-prose h2:first-child{margin-top:0;}
.article-prose h2::before{
  content:"";position:absolute;left:0;top:.32em;width:4px;height:1em;
  border-radius:3px;background:var(--grad);
}
.article-prose h3{
  font-size:18px;font-weight:800;color:var(--ink);margin:26px 0 10px;
}
.article-prose h4{font-size:16px;font-weight:800;color:var(--ink);margin:20px 0 8px;}
.article-prose ul,.article-prose ol{padding-left:1.25em;margin:0 0 18px;}
.article-prose li{margin-bottom:8px;}
.article-prose li::marker{color:var(--teal);}
.article-prose strong{color:var(--brand-dark);font-weight:800;}
.article-prose img{border-radius:var(--r);margin:20px auto;box-shadow:var(--sh-1);}
.article-prose blockquote{
  margin:20px 0;padding:14px 20px;border-left:4px solid var(--teal);
  background:#f2fbf9;border-radius:0 var(--r-sm) var(--r-sm) 0;color:var(--ink-2);
}
.article-prose blockquote p:last-child{margin-bottom:0;}
.article-prose a{color:var(--brand);font-weight:600;text-decoration:underline;text-decoration-color:rgba(15,123,214,.35);}
.article-prose a:hover{color:var(--brand-dark);}
.article-prose table{width:100%;border-collapse:collapse;margin:18px 0;font-size:14.5px;}
.article-prose th,.article-prose td{border:1px solid var(--line);padding:10px 12px;text-align:left;}
.article-prose th{background:#f4f9fe;color:var(--ink);font-weight:700;}
.article-prose hr{border:0;border-top:1px dashed var(--line-2);margin:28px 0;}
.article-empty{
  text-align:center;padding:26px 10px 34px;
}
.article-empty .ae-icon{
  width:64px;height:64px;margin:0 auto 18px;border-radius:18px;
  background:rgba(15,123,214,.10);color:var(--brand);
  display:grid;place-items:center;
}
.article-empty .ae-icon svg{width:30px;height:30px;}
.article-empty h2{
  font-size:22px;font-weight:800;color:var(--ink);margin:0 0 10px;padding:0;
}
.article-empty h2::before{display:none;}
.article-empty p{color:var(--muted);font-size:15px;max-width:460px;margin:0 auto 22px;}

/* ---------- sections ---------- */
.section{padding:56px 0;}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:30px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:800;letter-spacing:.6px;
  color:var(--brand);background:rgba(15,123,214,.09);
  border:1px solid rgba(15,123,214,.18);
  padding:4px 12px;border-radius:999px;margin-bottom:12px;
}
.eyebrow::before{content:"";width:14px;height:2px;border-radius:2px;background:var(--grad);}
.section-title{
  font-size:clamp(21px,2.6vw,28px);font-weight:800;color:var(--ink);
  letter-spacing:-.3px;margin:0 0 10px;line-height:1.42;
}
.section-sub{color:var(--muted);font-size:15px;margin:0;}

/* ---------- cards ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.card-x{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r);
  padding:24px 22px;box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  display:flex;flex-direction:column;
}
.card-x:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--line-2);}
.card-ic{
  width:42px;height:42px;border-radius:12px;background:var(--grad);
  display:grid;place-items:center;color:#fff;margin-bottom:16px;
  box-shadow:0 8px 18px rgba(15,123,214,.24);
}
.card-ic svg{width:21px;height:21px;}
.card-x h3{font-size:17px;font-weight:800;color:var(--ink);margin:0 0 8px;line-height:1.45;}
.card-x p{font-size:14.5px;line-height:1.76;color:var(--muted);margin:0 0 14px;}
.card-meta{
  margin-top:auto;display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;color:#0a7a6d;
  background:rgba(18,184,166,.12);border:1px solid rgba(18,184,166,.26);
  padding:4px 11px;border-radius:999px;align-self:flex-start;
}

/* ---------- dark band ---------- */
.band-dark{
  background:var(--grad-deep);color:#fff;position:relative;overflow:hidden;
}
.band-dark::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(760px 340px at 88% 0%,rgba(18,184,166,.24),transparent 62%),
    radial-gradient(620px 320px at 0% 100%,rgba(15,123,214,.26),transparent 60%);
}
.band-dark .container{position:relative;z-index:2;}
.band-dark .section-title{color:#fff;}
.band-dark .section-sub{color:#b6cfe3;}
.band-dark .eyebrow{color:#8ef0e1;background:rgba(18,184,166,.16);border-color:rgba(18,184,166,.36);}
.band-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.band-item{
  display:flex;gap:14px;align-items:flex-start;
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--r);padding:18px 20px;
  transition:background .22s ease,transform .22s ease,border-color .22s ease;
}
.band-item:hover{background:rgba(255,255,255,.13);border-color:rgba(18,184,166,.5);transform:translateY(-3px);}
.band-num{
  flex:0 0 auto;width:34px;height:34px;border-radius:10px;
  background:var(--grad);display:grid;place-items:center;
  font-weight:800;font-size:14px;color:#fff;
  box-shadow:0 6px 16px rgba(15,123,214,.35);
}
.band-item h3{font-size:15.5px;font-weight:800;color:#fff;margin:0 0 6px;}
.band-item p{font-size:14px;line-height:1.74;color:#b6cfe3;margin:0;}

/* ---------- channel matrix ---------- */
.channel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.channel-card{
  display:block;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:26px 24px;box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  color:var(--ink);
}
.channel-card:hover{
  transform:translateY(-4px);box-shadow:var(--sh-2);
  border-color:rgba(15,123,214,.38);color:var(--ink);
}
.channel-card h3{font-size:18px;font-weight:800;margin:0 0 8px;color:var(--ink);}
.channel-card p{font-size:14.5px;line-height:1.76;color:var(--muted);margin:0 0 16px;}
.channel-link{font-size:13.5px;font-weight:800;color:var(--brand);display:inline-flex;align-items:center;gap:6px;}
.channel-card:hover .channel-link{color:var(--brand-dark);}

/* ---------- faq ---------- */
.faq-wrap{max-width:900px;}
.faq-accordion .accordion-item{
  border:1px solid var(--line);border-radius:var(--r) !important;
  margin-bottom:12px;overflow:hidden;background:var(--surface);
  box-shadow:var(--sh-1);
}
.faq-accordion .accordion-button{
  font-size:15.5px;font-weight:700;color:var(--ink);
  background:var(--surface);padding:17px 20px;box-shadow:none;
}
.faq-accordion .accordion-button:not(.collapsed){
  color:var(--brand-dark);background:#f4f9fe;
}
.faq-accordion .accordion-button:focus{box-shadow:0 0 0 3px rgba(15,123,214,.16);}
.faq-accordion .accordion-button::after{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%230f7bd6'%3E%3Cpath d='M8 11.5 2.5 6l1.1-1.1L8 9.3l4.4-4.4L13.5 6z'/%3E%3C/svg%3E");
}
.faq-accordion .accordion-body{
  font-size:14.5px;line-height:1.8;color:var(--muted);padding:0 20px 18px;
  background:#f4f9fe;
}

/* ---------- cta ---------- */
.cta-box{
  position:relative;overflow:hidden;
  background:var(--grad);border-radius:var(--r-xl);
  padding:44px 46px;color:#fff;box-shadow:0 24px 56px rgba(15,123,214,.28);
}
.cta-box::after{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;
  border-radius:50%;background:rgba(255,255,255,.14);
}
.cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;gap:26px;justify-content:space-between;}
.cta-text{max-width:620px;}
.cta-text h2{font-size:clamp(21px,2.6vw,27px);font-weight:800;margin:0 0 10px;color:#fff;line-height:1.42;}
.cta-text p{margin:0;color:rgba(255,255,255,.9);font-size:15px;line-height:1.8;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
.btn-white{
  display:inline-flex;align-items:center;justify-content:center;
  background:#fff;color:var(--brand-dark);font-weight:800;font-size:14.5px;
  padding:11px 26px;border-radius:10px;border:none;
  box-shadow:0 10px 24px rgba(6,32,56,.18);
  transition:transform .22s ease,box-shadow .22s ease,color .22s ease;
}
.btn-white:hover,.btn-white:focus{color:var(--brand-dark);transform:translateY(-2px);box-shadow:0 16px 32px rgba(6,32,56,.24);}

/* ---------- footer ---------- */
.site-footer{background:#071725;color:#9db6cb;padding:52px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:34px;padding-bottom:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:16px;color:#fff;margin-bottom:14px;}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:10px;}
.footer-about{font-size:13.5px;line-height:1.82;color:#87a2b8;margin:0;}
.site-footer h4{font-size:14px;font-weight:800;color:#e6f1f9;margin:0 0 14px;letter-spacing:.3px;}
.footer-list{list-style:none;margin:0;padding:0;}
.footer-list li{margin-bottom:9px;}
.footer-list a{font-size:13.5px;color:#9db6cb;transition:color .2s ease,padding-left .2s ease;}
.footer-list a:hover{color:#5fe0cd;padding-left:3px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.10);
  padding:18px 0 22px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:12.8px;color:#7c96ab;
}
.footer-bottom .fb-right{color:#6f899e;}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .head-grid{grid-template-columns:1fr;gap:28px;}
  .head-card{max-width:520px;}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .channel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:991.98px){
  .navbar-collapse{
    background:#fff;border:1px solid var(--line);border-radius:14px;
    padding:14px;margin-top:10px;box-shadow:var(--sh-2);
  }
  .nav-links{gap:2px;margin-bottom:10px;}
  .nav-links .nav-link{padding:10px 12px;}
  .nav-links .nav-link.active::after{left:12px;right:12px;bottom:4px;}
  .nav-right{flex-wrap:wrap;gap:10px;margin-left:0;}
  .article-head{padding:32px 0 46px;}
  .article-prose{padding:28px 24px;font-size:15.5px;}
}
@media (max-width:767.98px){
  .grid-3,.channel-grid,.band-grid{grid-template-columns:1fr;}
  .section{padding:42px 0;}
  .article-main{padding:38px 0 6px;}
  .article-prose{padding:24px 18px;}
  .article-prose h2{font-size:19.5px;}
  .cta-box{padding:30px 24px;}
  .cta-inner{justify-content:flex-start;}
  .head-card{max-width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:24px;}
}
@media (max-width:520px){
  .container{padding-left:16px;padding-right:16px;}
  .brand-text{font-size:15px;}
  .article-head h1{font-size:22px;}
  .article-lead{font-size:14.5px;}
  .section-title{font-size:20px;}
  .btn-brand,.btn-ghost,.btn-white{width:100%;padding:12px 18px;min-height:44px;}
  .nav-right .btn-brand{width:auto;}
  .footer-bottom{flex-direction:column;gap:8px;}
}

/* roulang page: category1 */
:root{
 --ink:#0b1c2c;
 --ink-2:#26425e;
 --muted:#6c8299;
 --line:#e2ecf5;
 --line-2:#cfe0ef;
 --bg:#f3f7fb;
 --surface:#ffffff;
 --brand:#0f7bd6;
 --brand-dark:#0a5aa8;
 --teal:#12b8a6;
 --accent:#f6b93b;
 --grad:linear-gradient(135deg,#0f7bd6 0%,#12b8a6 100%);
 --grad-deep:linear-gradient(160deg,#071a2b 0%,#0b2942 46%,#0d3a52 100%);
 --r-sm:10px; --r:14px; --r-lg:22px; --r-xl:28px;
 --sh-1:0 2px 10px rgba(11,28,44,.05);
 --sh-2:0 10px 28px rgba(11,28,44,.09);
 --sh-3:0 20px 50px rgba(11,28,44,.16);
}
html{scroll-behavior:smooth;}
body{
 margin:0;padding:0;
 font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
 font-size:15.5px;line-height:1.78;color:var(--ink);background:var(--bg);
 -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-dark);}
button{font-family:inherit;}
.container{width:100%;max-width:1180px;margin:0 auto;padding-left:22px;padding-right:22px;}

/* ---------- header ---------- */
.site-header{
 position:sticky;top:0;z-index:1030;
 background:rgba(255,255,255,.94);
 backdrop-filter:blur(14px);
 -webkit-backdrop-filter:blur(14px);
 border-bottom:1px solid var(--line);
 transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-stuck{box-shadow:var(--sh-2);}
.navbar{min-height:66px;padding:0;}
.brand{display:flex;align-items:center;gap:10px;padding:0;margin-right:18px;}
.brand-mark{
 width:36px;height:36px;border-radius:11px;background:var(--grad);
 display:grid;place-items:center;color:#fff;
 box-shadow:0 8px 18px rgba(15,123,214,.30);flex:0 0 auto;
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{font-weight:800;font-size:17px;color:var(--ink);letter-spacing:.2px;white-space:nowrap;}
.nav-links{align-items:center;gap:4px;}
.nav-links .nav-link{
 position:relative;color:var(--ink-2);font-weight:600;font-size:15px;
 padding:8px 14px;border-radius:9px;transition:color .2s ease,background .2s ease;
}
.nav-links .nav-link:hover{color:var(--brand);background:rgba(15,123,214,.07);}
.nav-links .nav-link.active{color:var(--brand);}
.nav-links .nav-link.active::after{
 content:"";position:absolute;left:14px;right:14px;bottom:1px;height:2px;
 border-radius:2px;background:var(--grad);
}
.nav-right{display:flex;align-items:center;gap:14px;margin-left:auto;}
.nav-stage{
 display:inline-flex;align-items:center;gap:7px;font-size:12.5px;font-weight:700;
 color:#0a7a6d;background:rgba(18,184,166,.12);
 border:1px solid rgba(18,184,166,.30);
 padding:5px 12px;border-radius:999px;white-space:nowrap;
}
.nav-stage .dot{
 width:7px;height:7px;border-radius:50%;background:var(--teal);
 box-shadow:0 0 0 0 rgba(18,184,166,.6);animation:pulse 2.2s infinite;
}
@keyframes pulse{
 0%{box-shadow:0 0 0 0 rgba(18,184,166,.55);}
 70%{box-shadow:0 0 0 8px rgba(18,184,166,0);}
 100%{box-shadow:0 0 0 0 rgba(18,184,166,0);}
}
.navbar-toggler{border:1px solid var(--line-2);border-radius:10px;padding:6px 10px;}
.navbar-toggler:focus{box-shadow:0 0 0 3px rgba(15,123,214,.18);}
.navbar-toggler-icon{
 background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3E%3Cpath stroke='%230b1c2c' stroke-linecap='round' stroke-width='2' d='M4 8h22M4 15h22M4 22h22'/%3E%3C/svg%3E");
}

/* ---------- buttons ---------- */
.btn-brand{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 background:var(--grad);color:#fff;border:none;font-weight:700;font-size:14.5px;
 padding:11px 24px;border-radius:10px;
 box-shadow:0 8px 20px rgba(15,123,214,.26);
 transition:transform .22s ease,box-shadow .22s ease,filter .22s ease;
}
.btn-brand:hover,.btn-brand:focus{color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(15,123,214,.34);filter:saturate(1.1);}
.btn-brand:active{transform:translateY(0);}
.btn-ghost{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 background:#fff;color:var(--ink);border:1px solid var(--line-2);font-weight:700;font-size:14.5px;
 padding:11px 24px;border-radius:10px;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease,color .22s ease;
}
.btn-ghost:hover,.btn-ghost:focus{color:var(--brand);border-color:var(--brand);transform:translateY(-2px);box-shadow:var(--sh-2);}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
 outline:3px solid rgba(15,123,214,.32);outline-offset:2px;
}

/* ---------- hero (斜切色块) ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--grad-deep);color:#fff;padding:56px 0 118px;}
.page-hero .hero-bg{
 position:absolute;inset:0;background-size:cover;background-position:center;
 opacity:.16;filter:saturate(.82);
}
.page-hero .slant-block{
 position:absolute;right:-10%;top:-24%;width:62%;height:158%;
 background:var(--grad);opacity:.30;
 clip-path:polygon(40% 0,100% 0,100% 100%,0 100%);
 z-index:1;
}
.page-hero::after{
 content:"";position:absolute;inset:0;pointer-events:none;z-index:1;
 background:
 radial-gradient(880px 420px at 84% 6%,rgba(18,184,166,.30),transparent 62%),
 radial-gradient(700px 400px at 2% 96%,rgba(15,123,214,.34),transparent 60%);
}
.page-hero .slant-bottom{
 position:absolute;left:0;right:0;bottom:-1px;height:64px;background:var(--bg);
 clip-path:polygon(0 100%,100% 8%,100% 100%);z-index:2;
}
.page-hero .container{position:relative;z-index:3;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:#9fc0d8;margin-bottom:18px;}
.crumb a{color:#bcdcf2;font-weight:600;}
.crumb a:hover{color:#fff;}
.crumb span.sep{color:#5f8199;}
.crumb .crumb-cur{color:#7fe3d3;font-weight:700;}
.page-hero h1{
 font-size:clamp(26px,3.7vw,42px);line-height:1.3;font-weight:800;
 letter-spacing:-.5px;margin:0 0 16px;max-width:880px;color:#fff;
}
.page-hero-lead{font-size:15.5px;line-height:1.86;color:#c3daed;max-width:770px;margin:0 0 26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;}
.tag-pill{
 font-size:13px;font-weight:600;color:#b9e6df;background:rgba(18,184,166,.14);
 border:1px solid rgba(18,184,166,.36);
 padding:6px 14px;border-radius:999px;line-height:1.4;
 transition:background .2s ease,transform .2s ease;
}
.tag-pill:hover{background:rgba(18,184,166,.24);transform:translateY(-2px);}

/* ---------- sections ---------- */
.section{padding:66px 0;}
.section.tight{padding:52px 0;}
.section.on-white{background:var(--surface);}
.section.on-ink{background:var(--grad-deep);color:#e6f2fb;}
.section-head{max-width:790px;margin-bottom:34px;}
.eyebrow{
 display:inline-flex;align-items:center;gap:9px;font-size:12.5px;font-weight:800;
 letter-spacing:.10em;color:var(--brand);margin-bottom:12px;
}
.eyebrow::before{content:"";width:24px;height:3px;border-radius:2px;background:var(--grad);}
.section-head h2{
 font-size:clamp(22px,2.6vw,30px);font-weight:800;letter-spacing:-.4px;
 color:var(--ink);margin:0 0 12px;line-height:1.35;
}
.section-head p{color:var(--muted);margin:0;font-size:15px;line-height:1.82;}
.section.on-ink .section-head h2{color:#fff;}
.section.on-ink .section-head p{color:#a8c6dc;}
.section.on-ink .eyebrow{color:#7fe3d3;}

/* ---------- stat board ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;}
.stat-card{
 background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
 padding:24px 22px;box-shadow:var(--sh-1);
 transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--line-2);}
.stat-card .num{
 font-size:34px;font-weight:800;line-height:1.1;letter-spacing:-1px;
 background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
 display:block;margin-bottom:6px;
}
.stat-card .unit{font-size:14px;font-weight:700;color:var(--ink-2);display:block;margin-bottom:8px;}
.stat-card .desc{font-size:13.5px;color:var(--muted);line-height:1.72;margin:0;}

/* ---------- cards ---------- */
.card-soft{
 background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
 padding:26px 24px;box-shadow:var(--sh-1);height:100%;
 transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card-soft:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--line-2);}
.card-soft h3{font-size:17.5px;font-weight:800;color:var(--ink);margin:0 0 10px;letter-spacing:-.2px;}
.card-soft p{font-size:14.5px;color:var(--ink-2);line-height:1.8;margin:0 0 14px;}
.card-soft p:last-child{margin-bottom:0;}
.card-icon{
 width:42px;height:42px;border-radius:12px;background:rgba(15,123,214,.10);
 display:grid;place-items:center;color:var(--brand);margin-bottom:16px;
}
.card-icon svg{width:21px;height:21px;}
.card-media{
 border-radius:var(--r);overflow:hidden;aspect-ratio:16/10;margin-bottom:18px;
 background:#e9f2fa;
}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease;}
.card-soft:hover .card-media img{transform:scale(1.05);}
.badge-soft{
 display:inline-block;font-size:12px;font-weight:700;padding:3px 11px;
 border-radius:999px;background:rgba(15,123,214,.10);color:var(--brand-dark);
 line-height:1.6;
}
.badge-teal{background:rgba(18,184,166,.13);color:#0a7a6d;}
.badge-gold{background:rgba(246,185,59,.18);color:#8a6010;}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;}
.step{
 position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
 padding:26px 22px 24px;box-shadow:var(--sh-1);
 transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--line-2);}
.step .no{
 font-size:13px;font-weight:800;color:#fff;letter-spacing:.06em;
 width:30px;height:30px;border-radius:9px;display:grid;place-items:center;
 background:var(--grad);margin-bottom:14px;box-shadow:0 6px 14px rgba(15,123,214,.26);
}
.step h3{font-size:16.5px;font-weight:800;margin:0 0 9px;color:var(--ink);}
.step p{font-size:14px;color:var(--ink-2);line-height:1.78;margin:0;}
.step .step-meta{
 display:inline-block;margin-top:12px;font-size:12.5px;font-weight:700;color:var(--brand-dark);
 background:rgba(15,123,214,.08);border-radius:999px;padding:3px 11px;
}

/* ---------- compare table ---------- */
.table-wrap{
 overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-lg);
 background:#fff;box-shadow:var(--sh-1);
}
.cmp-table{width:100%;border-collapse:collapse;min-width:680px;}
.cmp-table thead th{
 background:#f5fafd;color:var(--ink-2);font-weight:800;font-size:13.5px;
 padding:15px 20px;text-align:left;border-bottom:1px solid var(--line-2);
 white-space:nowrap;letter-spacing:.02em;
}
.cmp-table tbody td{
 padding:15px 20px;font-size:14.5px;color:var(--ink-2);
 border-bottom:1px solid var(--line);vertical-align:middle;
}
.cmp-table tbody tr:last-child td{border-bottom:none;}
.cmp-table tbody tr:hover{background:#f9fcff;}
.cmp-table td strong{color:var(--ink);font-weight:800;}
.risk{display:inline-block;font-size:12px;font-weight:800;padding:3px 10px;border-radius:999px;}
.risk-low{background:rgba(18,184,166,.14);color:#0a7a6d;}
.risk-mid{background:rgba(15,123,214,.12);color:var(--brand-dark);}
.risk-high{background:rgba(246,185,59,.20);color:#8a6010;}

/* ---------- quick bar ---------- */
.quickbar{
 display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;
 background:linear-gradient(135deg,rgba(15,123,214,.07),rgba(18,184,166,.08));
 border:1px solid var(--line-2);border-radius:var(--r-lg);padding:20px;
}
.quick-item{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:16px 18px;}
.quick-item .q{display:block;font-size:13px;font-weight:800;color:var(--brand-dark);margin-bottom:6px;}
.quick-item .a{display:block;font-size:14px;color:var(--ink-2);line-height:1.72;}

/* ---------- notes list ---------- */
.note-list{display:grid;gap:14px;}
.note-item{
 display:flex;gap:16px;align-items:flex-start;
 background:#fff;border:1px solid var(--line);border-radius:var(--r);
 padding:20px 22px;box-shadow:var(--sh-1);
 transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.note-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--line-2);}
.note-item .nidx{
 flex:0 0 auto;width:38px;height:38px;border-radius:11px;
 background:rgba(18,184,166,.12);color:#0a7a6d;
 display:grid;place-items:center;font-weight:800;font-size:14px;
}
.note-item h3{font-size:16px;font-weight:800;margin:0 0 6px;color:var(--ink);}
.note-item p{font-size:14.5px;color:var(--ink-2);line-height:1.78;margin:0;}

/* ---------- faq ---------- */
.faq-accordion .accordion-item{
 border:1px solid var(--line);border-radius:var(--r-lg) !important;overflow:hidden;
 margin-bottom:12px;background:#fff;box-shadow:var(--sh-1);
}
.faq-accordion .accordion-button{
 font-weight:800;font-size:15.5px;color:var(--ink);background:#fff;
 padding:18px 22px;box-shadow:none;letter-spacing:-.1px;
}
.faq-accordion .accordion-button:not(.collapsed){color:var(--brand-dark);background:#f4faff;}
.faq-accordion .accordion-button:focus{box-shadow:0 0 0 3px rgba(15,123,214,.16);}
.faq-accordion .accordion-button::after{
 background-size:14px;width:14px;height:14px;opacity:.7;
}
.faq-accordion .accordion-body{
 color:var(--ink-2);font-size:14.8px;line-height:1.82;padding:0 22px 20px;
}

/* ---------- contact ---------- */
.contact-card{
 background:var(--grad-deep);border-radius:var(--r-xl);padding:44px 40px;
 color:#e6f2fb;position:relative;overflow:hidden;
 box-shadow:var(--sh-3);
}
.contact-card::after{
 content:"";position:absolute;right:-14%;top:-40%;width:52%;height:190%;
 background:var(--grad);opacity:.22;
 clip-path:polygon(42% 0,100% 0,100% 100%,0 100%);
 pointer-events:none;
}
.contact-card > *{position:relative;z-index:2;}
.contact-card h2{font-size:clamp(22px,2.6vw,29px);font-weight:800;color:#fff;margin:0 0 12px;letter-spacing:-.3px;}
.contact-card .lead{color:#a8c6dc;font-size:15px;line-height:1.82;margin:0 0 26px;max-width:640px;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:16px;}
.field label{
 display:block;font-size:13px;font-weight:700;color:#b7d5ea;margin-bottom:7px;
}
.field input,.field select,.field textarea{
 width:100%;background:rgba(255,255,255,.07);
 border:1px solid rgba(255,255,255,.20);border-radius:var(--r-sm);
 color:#f2f9ff;font-size:14.5px;padding:11px 14px;
 transition:border-color .2s ease,background .2s ease,box-shadow .2s ease;
}
.field input::placeholder,.field textarea::placeholder{color:#7fa1b9;}
.field input:focus,.field select:focus,.field textarea:focus{
 border-color:rgba(18,184,166,.75);background:rgba(255,255,255,.12);
 box-shadow:0 0 0 3px rgba(18,184,166,.20);outline:none;
}
.field select option{color:#0b1c2c;}
.field textarea{min-height:112px;resize:vertical;}
.form-foot{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:20px;}
.form-tip{font-size:13px;color:#8fb1c8;margin:0;}
.form-msg{
 display:none;margin-top:16px;padding:12px 16px;border-radius:var(--r-sm);
 background:rgba(18,184,166,.16);border:1px solid rgba(18,184,166,.42);
 color:#bff2ea;font-size:14px;font-weight:700;
}
.form-msg.show{display:block;}

/* ---------- footer ---------- */
.site-footer{
 background:#071a2b;color:#9db8ce;padding:56px 0 0;margin-top:0;
 border-top:1px solid rgba(255,255,255,.06);
}
.footer-grid{
 display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:36px;
 padding-bottom:40px;
}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:16.5px;margin-bottom:14px;}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:10px;}
.footer-about{font-size:13.8px;line-height:1.82;color:#89a6bd;margin:0;}
.site-footer h4{font-size:14.5px;font-weight:800;color:#fff;margin:0 0 16px;letter-spacing:.02em;}
.footer-list{list-style:none;margin:0;padding:0;}
.footer-list li{margin-bottom:10px;}
.footer-list a{color:#9db8ce;font-size:14px;transition:color .2s ease,padding-left .2s ease;}
.footer-list a:hover{color:#5fe0cd;padding-left:3px;}
.footer-bottom{
 display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
 border-top:1px solid rgba(255,255,255,.08);
 padding:20px 0;font-size:13px;color:#6e8ba2;
}
.fb-right{color:#57748c;}

/* ---------- responsive ---------- */
@media (max-width:991.98px){
 .section{padding:54px 0;}
 .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
 .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
 .quickbar{grid-template-columns:1fr;}
 .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
 .navbar-collapse{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:14px 16px;margin-top:12px;box-shadow:var(--sh-2);
 }
 .nav-links{align-items:flex-start;gap:2px;margin:0 0 12px;}
 .nav-links .nav-link{padding:9px 12px;width:100%;}
 .nav-links .nav-link.active::after{left:12px;right:auto;width:22px;}
 .nav-right{margin:0;flex-wrap:wrap;justify-content:flex-start;gap:10px;}
 .page-hero{padding:40px 0 96px;}
 .page-hero .slant-block{width:76%;right:-22%;opacity:.22;}
 .contact-card{padding:34px 26px;}
 .form-row{grid-template-columns:1fr;}
}
@media (max-width:767.98px){
 .page-hero h1{font-size:26px;}
 .page-hero-lead{font-size:15px;}
 .stat-card .num{font-size:29px;}
 .section-head h2{font-size:22px;}
 .footer-grid{grid-template-columns:1fr;gap:26px;}
 .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px;}
}
@media (max-width:519.98px){
 .stat-grid{grid-template-columns:1fr;}
 .steps{grid-template-columns:1fr;}
 .card-soft{padding:22px 18px;}
 .hero-actions .btn-brand,.hero-actions .btn-ghost{width:100%;}
 .contact-card{padding:28px 20px;}
 .form-foot .btn-brand{width:100%;}
}

/* roulang page: category2 */
:root{
 --ink:#0b1c2c;
 --ink-2:#26425e;
 --muted:#6c8299;
 --line:#e2ecf5;
 --line-2:#cfe0ef;
 --bg:#f3f7fb;
 --surface:#ffffff;
 --brand:#0f7bd6;
 --brand-dark:#0a5aa8;
 --teal:#12b8a6;
 --accent:#f6b93b;
 --grad:linear-gradient(135deg,#0f7bd6 0%,#12b8a6 100%);
 --grad-deep:linear-gradient(160deg,#071a2b 0%,#0b2942 46%,#0d3a52 100%);
 --r-sm:10px; --r:14px; --r-lg:22px; --r-xl:28px;
 --sh-1:0 2px 10px rgba(11,28,44,.05);
 --sh-2:0 10px 28px rgba(11,28,44,.09);
 --sh-3:0 20px 50px rgba(11,28,44,.16);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
 margin:0;padding:0;
 font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
 font-size:15.5px;line-height:1.78;color:var(--ink);background:var(--bg);
 -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-dark);}
button{font-family:inherit;}
h1,h2,h3,h4,h5{margin:0;color:var(--ink);letter-spacing:-.2px;}
p{margin:0 0 14px;}
ul{margin:0;padding:0;list-style:none;}
.container{width:100%;max-width:1180px;margin:0 auto;padding-left:22px;padding-right:22px;}
:focus-visible{outline:3px solid rgba(15,123,214,.45);outline-offset:2px;border-radius:6px;}

/* ---------- header ---------- */
.site-header{
 position:sticky;top:0;z-index:1030;
 background:rgba(255,255,255,.94);
 backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
 border-bottom:1px solid var(--line);
 transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-stuck{box-shadow:var(--sh-2);}
.navbar{min-height:66px;padding:0;}
.brand{display:flex;align-items:center;gap:10px;padding:0;margin-right:18px;}
.brand-mark{
 width:36px;height:36px;border-radius:11px;background:var(--grad);
 display:grid;place-items:center;color:#fff;
 box-shadow:0 8px 18px rgba(15,123,214,.30);flex:0 0 auto;
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{font-weight:800;font-size:17px;color:var(--ink);letter-spacing:.2px;white-space:nowrap;}
.nav-links{align-items:center;gap:4px;}
.nav-links .nav-link{
 position:relative;color:var(--ink-2);font-weight:600;font-size:15px;
 padding:8px 14px;border-radius:9px;transition:color .2s ease,background .2s ease;
}
.nav-links .nav-link:hover{color:var(--brand);background:rgba(15,123,214,.07);}
.nav-links .nav-link.active{color:var(--brand);}
.nav-links .nav-link.active::after{
 content:"";position:absolute;left:14px;right:14px;bottom:1px;height:2px;
 border-radius:2px;background:var(--grad);
}
.nav-right{display:flex;align-items:center;gap:14px;margin-left:auto;}
.nav-stage{
 display:inline-flex;align-items:center;gap:7px;font-size:12.5px;font-weight:700;
 color:#0a7a6d;background:rgba(18,184,166,.12);
 border:1px solid rgba(18,184,166,.30);
 padding:5px 12px;border-radius:999px;white-space:nowrap;
}
.nav-stage .dot{
 width:7px;height:7px;border-radius:50%;background:var(--teal);
 box-shadow:0 0 0 0 rgba(18,184,166,.6);animation:pulse 2.2s infinite;
}
@keyframes pulse{
 0%{box-shadow:0 0 0 0 rgba(18,184,166,.55);}
 70%{box-shadow:0 0 0 9px rgba(18,184,166,0);}
 100%{box-shadow:0 0 0 0 rgba(18,184,166,0);}
}
.navbar-toggler{border:1px solid var(--line-2);border-radius:10px;padding:6px 10px;}
.navbar-toggler:focus{box-shadow:0 0 0 3px rgba(15,123,214,.18);}
.navbar-toggler-icon{
 background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3E%3Cpath stroke='%230b1c2c' stroke-linecap='round' stroke-width='2' d='M4 8h22M4 15h22M4 22h22'/%3E%3C/svg%3E");
}

/* ---------- buttons ---------- */
.btn-brand{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 background:var(--grad);color:#fff;border:none;font-weight:700;font-size:14.5px;
 padding:10px 22px;border-radius:10px;min-height:42px;
 box-shadow:0 8px 20px rgba(15,123,214,.26);
 transition:transform .22s ease,box-shadow .22s ease,filter .22s ease;
}
.btn-brand:hover,.btn-brand:focus{color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(15,123,214,.34);filter:saturate(1.1);}
.btn-brand:active{transform:translateY(0);}
.btn-ghost{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 background:#fff;color:var(--ink);border:1px solid var(--line-2);font-weight:700;font-size:14.5px;
 padding:10px 22px;border-radius:10px;min-height:42px;
 transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease,color .22s ease;
}
.btn-ghost:hover,.btn-ghost:focus{color:var(--brand);border-color:var(--brand);transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-on-dark{
 background:rgba(255,255,255,.10);color:#e8f4ff;border:1px solid rgba(255,255,255,.26);
 font-weight:700;font-size:14.5px;padding:10px 22px;border-radius:10px;
 transition:.22s ease;display:inline-flex;align-items:center;gap:8px;min-height:42px;
}
.btn-on-dark:hover{background:rgba(255,255,255,.18);color:#fff;transform:translateY(-2px);}

/* ---------- hero (clipped slab) ---------- */
.hero{position:relative;overflow:hidden;background:var(--grad-deep);color:#fff;padding:58px 0 92px;}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.16;filter:saturate(.85);}
.hero::before{
 content:"";position:absolute;inset:0;pointer-events:none;
 background:
 radial-gradient(900px 420px at 84% 8%,rgba(18,184,166,.30),transparent 62%),
 radial-gradient(720px 420px at 4% 92%,rgba(15,123,214,.36),transparent 60%);
}
.hero::after{
 content:"";position:absolute;left:0;right:0;bottom:-1px;height:74px;background:var(--bg);
 clip-path:polygon(0 100%,100% 0,100% 100%);
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.28fr .72fr;gap:40px;align-items:center;}
.hero-kicker{
 display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;letter-spacing:.4px;
 color:#9fe6dc;background:rgba(18,184,166,.14);border:1px solid rgba(18,184,166,.34);
 padding:6px 13px;border-radius:999px;margin-bottom:18px;
}
.hero h1{
 font-size:clamp(27px,4.1vw,43px);line-height:1.26;font-weight:800;
 color:#fff;margin:0 0 18px;max-width:720px;
}
.hero h1 .hlg{background:linear-gradient(100deg,#7fe9d8,#bfe2ff);-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero-lead{font-size:15.5px;line-height:1.86;color:#c3daed;max-width:640px;margin:0 0 24px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;}
.tag-pill{
 font-size:13px;font-weight:600;color:#b9e6df;background:rgba(18,184,166,.14);
 border:1px solid rgba(18,184,166,.34);padding:6px 13px;border-radius:999px;
}
.hero-panel{
 background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);
 border-radius:var(--r-lg);padding:22px;backdrop-filter:blur(6px);
 box-shadow:0 18px 40px rgba(3,12,22,.28);
}
.hero-panel h2{font-size:15px;color:#dff1ff;font-weight:800;margin:0 0 14px;letter-spacing:.3px;}
.hp-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px dashed rgba(255,255,255,.16);}
.hp-row:last-child{border-bottom:0;padding-bottom:0;}
.hp-row .k{font-size:13.5px;color:#a9c6de;font-weight:600;}
.hp-row .v{font-size:16px;font-weight:800;color:#fff;}
.hp-row .v small{font-size:12px;color:#9fe6dc;font-weight:700;margin-left:3px;}

/* ---------- section system ---------- */
main{display:block;}
.section{padding:66px 0;}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-dark{background:var(--grad-deep);color:#e8f4ff;}
.section-dark h2,.section-dark h3{color:#fff;}
.section-head{margin-bottom:32px;max-width:800px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:800;letter-spacing:.6px;
 color:var(--brand);text-transform:uppercase;margin-bottom:10px;
}
.eyebrow::before{content:"";width:22px;height:3px;border-radius:2px;background:var(--grad);}
.section-dark .eyebrow{color:#7fe9d8;}
.section-title{font-size:clamp(22px,2.7vw,29px);font-weight:800;line-height:1.36;margin:0 0 12px;}
.section-sub{font-size:15px;color:var(--muted);line-height:1.82;margin:0;}
.section-dark .section-sub{color:#a9c6de;}

/* ---------- metric board ---------- */
.metric-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}
.metric{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--r);
 padding:20px 18px;box-shadow:var(--sh-1);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.metric:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--line-2);}
.metric .num{font-size:30px;font-weight:800;line-height:1.1;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.metric .num small{font-size:14px;font-weight:800;margin-left:2px;}
.metric .lb{font-size:13.5px;color:var(--muted);font-weight:600;margin-top:6px;}
.metric .note{font-size:12.5px;color:#8aa1b8;margin-top:4px;}
.section-dark .metric{background:rgba(255,255,255,.07);border-color:rgba(255,255,255,.16);box-shadow:none;}
.section-dark .metric .lb{color:#c3daed;}
.section-dark .metric .note{color:#8fb0c9;}

/* ---------- cannon cards ---------- */
.cannon-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.cannon-card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
 padding:22px;box-shadow:var(--sh-1);height:100%;
 display:flex;flex-direction:column;gap:12px;
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.cannon-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(15,123,214,.34);}
.cc-top{display:flex;align-items:center;gap:12px;}
.cc-ic{
 width:44px;height:44px;border-radius:13px;background:var(--grad);color:#fff;
 display:grid;place-items:center;flex:0 0 auto;box-shadow:0 8px 18px rgba(15,123,214,.24);
}
.cc-ic svg{width:22px;height:22px;}
.cc-name{font-size:16.5px;font-weight:800;color:var(--ink);line-height:1.35;}
.cc-power{font-size:12.5px;color:var(--teal);font-weight:800;}
.cannon-card p{font-size:14px;color:var(--ink-2);line-height:1.78;margin:0;}
.cc-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:6px;}
.chip{
 font-size:12px;font-weight:700;color:var(--brand);background:rgba(15,123,214,.09);
 border:1px solid rgba(15,123,214,.20);padding:4px 10px;border-radius:999px;
}
.chip-teal{color:#0a7a6d;background:rgba(18,184,166,.11);border-color:rgba(18,184,166,.26);}
.chip-gold{color:#8a5b00;background:rgba(246,185,59,.16);border-color:rgba(246,185,59,.36);}

/* ---------- compare table ---------- */
.compare-wrap{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
 box-shadow:var(--sh-1);overflow:hidden;
}
.table-scroll{width:100%;overflow-x:auto;}
table.compare{width:100%;border-collapse:collapse;min-width:720px;font-size:14px;}
table.compare thead th{
 background:linear-gradient(180deg,#f7fbff,#eef5fc);color:var(--ink);
 font-weight:800;font-size:13.5px;text-align:left;padding:14px 18px;
 border-bottom:1px solid var(--line);white-space:nowrap;
}
table.compare tbody td{padding:14px 18px;border-bottom:1px solid var(--line);color:var(--ink-2);vertical-align:middle;}
table.compare tbody tr:last-child td{border-bottom:0;}
table.compare tbody tr{transition:background .18s ease;}
table.compare tbody tr:hover{background:#f7fbff;}
td .tname{font-weight:800;color:var(--ink);}
td .tv{font-weight:800;color:var(--brand);}
.bar{position:relative;height:8px;border-radius:6px;background:#eaf2fa;overflow:hidden;min-width:96px;}
.bar span{position:absolute;left:0;top:0;bottom:0;border-radius:6px;background:var(--grad);}
.bar.teal span{background:linear-gradient(135deg,#12b8a6,#7fe9d8);}
.bar.gold span{background:linear-gradient(135deg,#f6b93b,#ffd982);}

/* ---------- milestone timeline ---------- */
.timeline{position:relative;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.step-card{
 background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);
 border-radius:var(--r);padding:20px;transition:transform .2s ease,border-color .2s ease,background .2s ease;
}
.step-card:hover{transform:translateY(-4px);border-color:rgba(18,184,166,.5);background:rgba(255,255,255,.11);}
.step-lv{
 display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:800;
 color:#071a2b;background:linear-gradient(135deg,#7fe9d8,#bfe2ff);
 padding:3px 10px;border-radius:999px;margin-bottom:10px;
}
.step-card h3{font-size:15.5px;font-weight:800;color:#fff;margin:0 0 8px;}
.step-card p{font-size:13.8px;color:#b6d0e4;line-height:1.76;margin:0;}

/* ---------- feature / image block ---------- */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:38px;align-items:center;}
.split-media{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);border:1px solid var(--line);}
.split-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/10;}
.split-media .media-tag{
 position:absolute;left:14px;bottom:14px;background:rgba(7,26,43,.78);color:#e8f4ff;
 font-size:12.5px;font-weight:700;padding:6px 12px;border-radius:999px;border:1px solid rgba(255,255,255,.18);
 backdrop-filter:blur(4px);
}
.check-list{display:grid;gap:14px;margin:0;}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:14.5px;color:var(--ink-2);line-height:1.78;}
.check-list .tick{
 width:24px;height:24px;border-radius:8px;flex:0 0 auto;margin-top:2px;
 background:rgba(18,184,166,.14);color:#0a7a6d;display:grid;place-items:center;
 border:1px solid rgba(18,184,166,.3);
}
.check-list .tick svg{width:14px;height:14px;}
.check-list strong{color:var(--ink);font-weight:800;}

/* ---------- assurance ---------- */
.assure-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.assure{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--r);
 padding:22px;box-shadow:var(--sh-1);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.assure:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(15,123,214,.3);}
.assure .ai{
 width:40px;height:40px;border-radius:12px;background:rgba(15,123,214,.10);color:var(--brand);
 display:grid;place-items:center;margin-bottom:12px;border:1px solid rgba(15,123,214,.18);
}
.assure .ai svg{width:20px;height:20px;}
.assure h3{font-size:15.5px;font-weight:800;margin:0 0 8px;}
.assure p{font-size:13.8px;color:var(--muted);line-height:1.76;margin:0;}

/* ---------- quick answers ---------- */
.qa-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.qa-card{
 background:linear-gradient(160deg,#ffffff,#f6fbff);border:1px solid var(--line);
 border-radius:var(--r-lg);padding:22px;box-shadow:var(--sh-1);height:100%;
 transition:transform .2s ease,box-shadow .2s ease;
}
.qa-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.qa-card .qn{font-size:12.5px;font-weight:800;color:var(--teal);letter-spacing:.6px;margin-bottom:8px;}
.qa-card h3{font-size:16px;font-weight:800;margin:0 0 10px;line-height:1.5;}
.qa-card p{font-size:14px;color:var(--ink-2);line-height:1.8;margin:0;}

/* ---------- faq ---------- */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-item{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--r);
 margin-bottom:12px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:var(--line-2);box-shadow:var(--sh-1);}
.faq-q{
 width:100%;text-align:left;background:none;border:0;padding:17px 20px;
 font-size:15.5px;font-weight:800;color:var(--ink);cursor:pointer;
 display:flex;align-items:center;justify-content:space-between;gap:14px;
}
.faq-q::after{
 content:"";width:11px;height:11px;flex:0 0 auto;
 border-right:2.4px solid var(--brand);border-bottom:2.4px solid var(--brand);
 transform:rotate(45deg);transition:transform .25s ease;margin-top:-4px;
}
.faq-q[aria-expanded="true"]::after{transform:rotate(-135deg);margin-top:4px;}
.faq-a{display:none;padding:0 20px 18px;font-size:14.5px;color:var(--ink-2);line-height:1.82;}
.faq-a.open{display:block;}
.faq-a p{margin:0;}

/* ---------- form ---------- */
.contact-panel{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--r-xl);
 box-shadow:var(--sh-2);padding:30px;
 display:grid;grid-template-columns:.9fr 1.1fr;gap:34px;align-items:start;
}
.contact-panel h2{font-size:clamp(21px,2.5vw,27px);font-weight:800;margin:0 0 12px;line-height:1.4;}
.contact-panel .cp-lead{font-size:14.8px;color:var(--muted);line-height:1.84;margin:0 0 18px;}
.cp-points{display:grid;gap:10px;margin:0;}
.cp-points li{display:flex;gap:10px;font-size:14px;color:var(--ink-2);}
.cp-points .dot-s{width:8px;height:8px;border-radius:50%;background:var(--grad);flex:0 0 auto;margin-top:9px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.field{display:flex;flex-direction:column;gap:6px;}
.field.full{grid-column:1 / -1;}
.field label{font-size:13.5px;font-weight:800;color:var(--ink-2);}
.field input,.field select,.field textarea{
 width:100%;border:1px solid var(--line-2);border-radius:10px;background:#fbfdff;
 padding:11px 13px;font-size:14.5px;color:var(--ink);font-family:inherit;
 transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;min-height:44px;
}
.field textarea{min-height:104px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
 outline:none;border-color:var(--brand);background:#fff;box-shadow:0 0 0 4px rgba(15,123,214,.13);
}
.form-note{font-size:12.8px;color:var(--muted);margin:10px 0 0;}
.form-tip{
 display:none;margin-top:12px;font-size:13.5px;font-weight:700;color:#0a7a6d;
 background:rgba(18,184,166,.12);border:1px solid rgba(18,184,166,.3);
 border-radius:10px;padding:10px 13px;
}
.form-tip.show{display:block;}

/* ---------- footer ---------- */
.site-footer{background:#071a2b;color:#b6cadd;padding:52px 0 24px;border-top:1px solid rgba(255,255,255,.08);}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:16.5px;color:#fff;margin-bottom:14px;}
.footer-about{font-size:13.6px;line-height:1.82;color:#93aec6;margin:0;}
.site-footer h4{font-size:14.5px;color:#fff;font-weight:800;margin:0 0 14px;}
.footer-list li{margin-bottom:9px;}
.footer-list a{color:#93aec6;font-size:13.8px;transition:color .2s ease,padding-left .2s ease;}
.footer-list a:hover{color:#7fe9d8;padding-left:3px;}
.footer-bottom{
 margin-top:36px;padding-top:18px;border-top:1px solid rgba(255,255,255,.10);
 display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
 font-size:13px;color:#7e97ad;
}
.fb-right{color:#7e97ad;word-break:break-all;}

/* ---------- responsive ---------- */
@media (max-width:1024px){
 .hero-inner{grid-template-columns:1fr;gap:30px;}
 .hero-panel{max-width:520px;}
 .metric-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
 .cannon-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
 .assure-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
 .qa-grid{grid-template-columns:1fr;}
 .timeline{grid-template-columns:repeat(2,minmax(0,1fr));}
 .split{grid-template-columns:1fr;gap:26px;}
 .contact-panel{grid-template-columns:1fr;gap:24px;}
 .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
}
@media (max-width:768px){
 .section{padding:48px 0;}
 .hero{padding:44px 0 78px;}
 .hero::after{height:52px;}
 .nav-right{margin-left:0;margin-top:12px;width:100%;justify-content:space-between;}
 .navbar-collapse{padding:12px 0 16px;}
 .nav-links{gap:2px;margin:0 0 4px;}
 .nav-links .nav-link{padding:10px 12px;min-height:42px;}
 .cannon-grid{grid-template-columns:1fr;}
 .form-grid{grid-template-columns:1fr;}
 .metric .num{font-size:26px;}
}
@media (max-width:520px){
 .container{padding-left:16px;padding-right:16px;}
 .metric-grid{grid-template-columns:1fr;}
 .timeline{grid-template-columns:1fr;}
 .assure-grid{grid-template-columns:1fr;}
 .footer-grid{grid-template-columns:1fr;}
 .contact-panel{padding:20px;}
 .brand-text{font-size:15.5px;}
 .hero h1{font-size:26px;}
}

/* roulang page: category3 */
:root{
 --ink:#0b1c2c;
 --ink-2:#26425e;
 --muted:#6c8299;
 --line:#e2ecf5;
 --line-2:#cfe0ef;
 --bg:#f3f7fb;
 --surface:#ffffff;
 --brand:#0f7bd6;
 --brand-dark:#0a5aa8;
 --teal:#12b8a6;
 --accent:#f6b93b;
 --grad:linear-gradient(135deg,#0f7bd6 0%,#12b8a6 100%);
 --grad-deep:linear-gradient(160deg,#071a2b 0%,#0b2942 46%,#0d3a52 100%);
 --r-sm:10px; --r:14px; --r-lg:22px; --r-xl:28px;
 --sh-1:0 2px 10px rgba(11,28,44,.05);
 --sh-2:0 10px 28px rgba(11,28,44,.09);
 --sh-3:0 20px 50px rgba(11,28,44,.16);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
 margin:0;padding:0;
 font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
 font-size:15.5px;line-height:1.78;color:var(--ink);background:var(--bg);
 -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-dark);}
button,input,textarea,select{font-family:inherit;font-size:100%;}
:focus-visible{outline:3px solid rgba(15,123,214,.35);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1180px;margin:0 auto;padding-left:22px;padding-right:22px;}

/* ---------- header ---------- */
.site-header{
 position:sticky;top:0;z-index:1030;
 background:rgba(255,255,255,.94);
 backdrop-filter:blur(14px);
 -webkit-backdrop-filter:blur(14px);
 border-bottom:1px solid var(--line);
 transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-stuck{box-shadow:var(--sh-2);}
.navbar{min-height:66px;padding:0;}
.brand{display:flex;align-items:center;gap:10px;padding:0;margin-right:18px;}
.brand-mark{
 width:36px;height:36px;border-radius:11px;background:var(--grad);
 display:grid;place-items:center;color:#fff;
 box-shadow:0 8px 18px rgba(15,123,214,.30);flex:0 0 auto;
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{font-weight:800;font-size:17px;color:var(--ink);letter-spacing:.2px;white-space:nowrap;}
.nav-links{align-items:center;gap:4px;}
.nav-links .nav-link{
 position:relative;color:var(--ink-2);font-weight:600;font-size:15px;
 padding:8px 14px;border-radius:9px;transition:color .2s ease,background .2s ease;
}
.nav-links .nav-link:hover{color:var(--brand);background:rgba(15,123,214,.07);}
.nav-links .nav-link.active{color:var(--brand);}
.nav-links .nav-link.active::after{
 content:"";position:absolute;left:14px;right:14px;bottom:1px;height:2px;
 border-radius:2px;background:var(--grad);
}
.nav-right{display:flex;align-items:center;gap:14px;margin-left:auto;}
.nav-stage{
 display:inline-flex;align-items:center;gap:7px;font-size:12.5px;font-weight:700;
 color:#0a7a6d;background:rgba(18,184,166,.12);
 border:1px solid rgba(18,184,166,.30);
 padding:5px 12px;border-radius:999px;white-space:nowrap;
}
.nav-stage .dot{
 width:7px;height:7px;border-radius:50%;background:var(--teal);
 box-shadow:0 0 0 0 rgba(18,184,166,.6);animation:pulse 2.2s infinite;
}
@keyframes pulse{
 0%{box-shadow:0 0 0 0 rgba(18,184,166,.55);}
 70%{box-shadow:0 0 0 8px rgba(18,184,166,0);}
 100%{box-shadow:0 0 0 0 rgba(18,184,166,0);}
}
.navbar-toggler{border:1px solid var(--line-2);border-radius:10px;padding:6px 10px;}
.navbar-toggler:focus{box-shadow:0 0 0 3px rgba(15,123,214,.18);}
.navbar-toggler-icon{
 background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3E%3Cpath stroke='%230b1c2c' stroke-linecap='round' stroke-width='2' d='M4 8h22M4 15h22M4 22h22'/%3E%3C/svg%3E");
}

/* ---------- buttons ---------- */
.btn-brand{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 background:var(--grad);color:#fff;border:none;font-weight:700;font-size:14.5px;
 padding:11px 24px;border-radius:10px;
 box-shadow:0 8px 20px rgba(15,123,214,.26);
 transition:transform .22s ease,box-shadow .22s ease,filter .22s ease;
}
.btn-brand:hover,.btn-brand:focus{color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(15,123,214,.34);filter:saturate(1.1);}
.btn-brand:active{transform:translateY(0);}
.btn-ghost{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 background:#fff;color:var(--ink);border:1px solid var(--line-2);font-weight:700;font-size:14.5px;
 padding:11px 24px;border-radius:10px;
 transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease,color .22s ease;
}
.btn-ghost:hover,.btn-ghost:focus{color:var(--brand);border-color:var(--brand);transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-on-dark{
 background:rgba(255,255,255,.10);color:#e8f4ff;border:1px solid rgba(255,255,255,.26);
 font-weight:700;font-size:14.5px;padding:11px 24px;border-radius:10px;
 transition:.22s ease;display:inline-flex;align-items:center;gap:8px;
}
.btn-on-dark:hover{background:rgba(255,255,255,.18);color:#fff;transform:translateY(-2px);}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--grad-deep);color:#fff;padding:56px 0 64px;}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.16;filter:saturate(.85);}
.hero::after{
 content:"";position:absolute;inset:0;pointer-events:none;
 background:
 radial-gradient(900px 420px at 84% 8%,rgba(18,184,166,.30),transparent 62%),
 radial-gradient(700px 400px at 4% 92%,rgba(15,123,214,.34),transparent 60%);
}
.hero-inner{position:relative;z-index:2;}
.hero-kicker{
 display:inline-flex;align-items:center;gap:8px;
 font-size:12.5px;font-weight:800;letter-spacing:1.4px;
 color:#8ff0e2;background:rgba(18,184,166,.14);
 border:1px solid rgba(18,184,166,.34);
 padding:6px 14px;border-radius:999px;margin-bottom:18px;
}
.hero h1{
 font-size:clamp(26px,3.9vw,42px);line-height:1.3;font-weight:800;
 letter-spacing:-.6px;margin:0 0 16px;color:#fff;
}
.hero-lead{font-size:15.8px;line-height:1.86;color:#c3daed;margin:0 0 24px;max-width:640px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:24px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;}
.tag-pill{
 font-size:12.8px;font-weight:600;color:#b9e6df;background:rgba(18,184,166,.14);
 border:1px solid rgba(18,184,166,.36);
 padding:6px 14px;border-radius:999px;
}
.hero-panel{
 position:relative;border-radius:var(--r-xl);overflow:hidden;
 border:1px solid rgba(255,255,255,.20);
 box-shadow:0 26px 60px rgba(3,12,22,.48);
 background:#0a2135;
}
.hero-panel img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/5;opacity:.94;}
.panel-badge{
 position:absolute;top:14px;left:14px;
 background:rgba(7,22,36,.76);border:1px solid rgba(255,255,255,.22);
 backdrop-filter:blur(8px);border-radius:12px;padding:8px 14px;
 display:flex;flex-direction:column;line-height:1.24;
}
.panel-badge .pb-num{font-size:17px;font-weight:800;color:#7ce9da;letter-spacing:.4px;}
.panel-badge .pb-lb{font-size:11.5px;color:#a9c6dd;font-weight:600;}
.panel-row{
 position:absolute;left:12px;right:12px;bottom:12px;
 display:grid;grid-template-columns:repeat(3,1fr);gap:8px;
}
.panel-row div{
 background:rgba(7,22,36,.74);border:1px solid rgba(255,255,255,.18);
 backdrop-filter:blur(8px);border-radius:12px;padding:9px 6px;text-align:center;
}
.panel-row strong{display:block;font-size:15px;font-weight:800;color:#ffffff;}
.panel-row span{display:block;font-size:11px;color:#a9c6dd;font-weight:600;margin-top:2px;}

/* ---------- sections ---------- */
.sec{padding:64px 0;}
.sec-white{background:var(--surface);}
.sec-alt{background:linear-gradient(180deg,#eaf2fa 0%,#f3f7fb 100%);}
.sec-head{max-width:780px;margin-bottom:34px;}
.sec-kicker{
 display:inline-flex;align-items:center;gap:9px;
 font-size:12.8px;font-weight:800;letter-spacing:1px;color:var(--brand);
 margin-bottom:10px;
}
.sec-kicker::before{content:"";width:24px;height:3px;border-radius:3px;background:var(--grad);display:inline-block;}
.sec-title{font-size:clamp(21px,2.6vw,29px);font-weight:800;letter-spacing:-.3px;margin:0 0 10px;color:var(--ink);line-height:1.36;}
.sec-desc{color:var(--muted);font-size:15px;line-height:1.82;margin:0;max-width:720px;}

/* ---------- metric cards ---------- */
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
.metric-card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
 padding:22px 20px;box-shadow:var(--sh-1);
 transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
 position:relative;overflow:hidden;
}
.metric-card::before{
 content:"";position:absolute;left:0;top:0;height:4px;width:100%;background:var(--grad);opacity:.85;
}
.metric-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--line-2);}
.metric-num{font-size:29px;font-weight:800;letter-spacing:-.8px;color:var(--ink);line-height:1.2;}
.metric-num small{font-size:14px;font-weight:700;color:var(--teal);margin-left:3px;}
.metric-lb{font-size:14px;font-weight:700;color:var(--ink-2);margin-top:6px;}
.metric-tx{font-size:13px;color:var(--muted);line-height:1.7;margin-top:6px;}

/* ---------- package matrix ---------- */
.matrix-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;}
.pack-card{
 display:flex;gap:18px;align-items:flex-start;
 background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
 padding:20px;box-shadow:var(--sh-1);
 transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.pack-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--line-2);}
.pack-thumb{
 width:104px;flex:0 0 104px;border-radius:var(--r);overflow:hidden;background:#dfeaf4;
}
.pack-thumb img{width:100%;height:104px;object-fit:cover;transition:transform .3s ease;}
.pack-card:hover .pack-thumb img{transform:scale(1.06);}
.pack-body h3{font-size:17px;font-weight:800;margin:0 0 6px;color:var(--ink);}
.pack-body p{font-size:13.8px;color:var(--muted);line-height:1.76;margin:0 0 10px;}
.pack-meta{display:flex;flex-wrap:wrap;gap:8px;}
.chip{
 display:inline-flex;align-items:center;gap:5px;
 font-size:12px;font-weight:700;color:var(--brand-dark);
 background:rgba(15,123,214,.09);border:1px solid rgba(15,123,214,.20);
 padding:3px 10px;border-radius:999px;
}
.chip-teal{color:#0a7a6d;background:rgba(18,184,166,.11);border-color:rgba(18,184,166,.28);}
.chip-gold{color:#946500;background:rgba(246,185,59,.16);border-color:rgba(246,185,59,.42);}

/* ---------- compare table ---------- */
.table-wrap{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
 overflow:hidden;box-shadow:var(--sh-1);
}
.cmp-table{width:100%;border-collapse:separate;border-spacing:0;min-width:620px;}
.cmp-table thead th{
 background:linear-gradient(180deg,#0b2942 0%,#0d3a52 100%);
 color:#e9f5ff;font-size:13.5px;font-weight:800;letter-spacing:.4px;
 padding:14px 18px;text-align:left;border:none;white-space:nowrap;
}
.cmp-table thead th:first-child{color:#9fc2dd;}
.cmp-table tbody td{
 padding:14px 18px;font-size:14px;color:var(--ink-2);
 border-bottom:1px solid var(--line);vertical-align:top;
}
.cmp-table tbody tr:last-child td{border-bottom:none;}
.cmp-table tbody tr:nth-child(even){background:#f7fbfe;}
.cmp-table tbody tr:hover{background:#eef7ff;}
.cmp-table td:first-child{font-weight:700;color:var(--ink);}
.cmp-yes{color:#0a7a6d;font-weight:700;}
.cmp-no{color:#8a9bad;font-weight:600;}
.cmp-note{
 font-size:13px;color:var(--muted);margin-top:14px;line-height:1.76;
}

/* ---------- timeline ---------- */
.timeline{position:relative;padding-left:26px;}
.timeline::before{
 content:"";position:absolute;left:7px;top:6px;bottom:6px;width:2px;
 background:linear-gradient(180deg,rgba(15,123,214,.55),rgba(18,184,166,.28));
 border-radius:2px;
}
.tl-item{position:relative;padding:0 0 26px 0;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
 content:"";position:absolute;left:-26px;top:6px;width:14px;height:14px;border-radius:50%;
 background:#fff;border:3px solid var(--brand);box-shadow:0 0 0 4px rgba(15,123,214,.10);
}
.tl-item.done::before{border-color:var(--teal);box-shadow:0 0 0 4px rgba(18,184,166,.13);}
.tl-ver{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:5px;}
.tl-ver strong{font-size:16px;font-weight:800;color:var(--ink);}
.tl-ver .tl-date{font-size:12.5px;color:var(--muted);font-weight:600;}
.tl-item p{font-size:14px;color:var(--muted);line-height:1.78;margin:0;max-width:760px;}

/* ---------- news list ---------- */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;}
.news-card{
 display:flex;gap:16px;background:var(--surface);border:1px solid var(--line);
 border-radius:var(--r-lg);padding:16px;box-shadow:var(--sh-1);
 transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--line-2);}
.news-thumb{width:120px;flex:0 0 120px;border-radius:var(--r);overflow:hidden;background:#dfeaf4;}
.news-thumb img{width:100%;height:100%;min-height:96px;object-fit:cover;transition:transform .3s ease;}
.news-card:hover .news-thumb img{transform:scale(1.06);}
.news-body{min-width:0;}
.news-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12px;color:var(--muted);margin-bottom:6px;font-weight:600;}
.news-body h3{font-size:15.5px;font-weight:800;line-height:1.5;margin:0 0 6px;}
.news-body h3 a{color:var(--ink);}
.news-body h3 a:hover{color:var(--brand);}
.news-body p{font-size:13.4px;color:var(--muted);line-height:1.72;margin:0;}
.list-empty{
 background:var(--surface);border:1px dashed var(--line-2);border-radius:var(--r-lg);
 padding:34px 22px;text-align:center;color:var(--muted);font-size:14.5px;
}

/* ---------- guard ---------- */
.guard-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;}
.guard-item{
 display:flex;gap:14px;background:var(--surface);border:1px solid var(--line);
 border-radius:var(--r);padding:18px;box-shadow:var(--sh-1);
 transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.guard-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--line-2);}
.guard-ic{
 width:42px;height:42px;flex:0 0 42px;border-radius:12px;display:grid;place-items:center;
 background:rgba(15,123,214,.10);border:1px solid rgba(15,123,214,.20);color:var(--brand);
}
.guard-ic svg{width:20px;height:20px;}
.guard-item h3{font-size:15.5px;font-weight:800;margin:0 0 5px;color:var(--ink);}
.guard-item p{font-size:13.6px;color:var(--muted);line-height:1.74;margin:0;}

/* ---------- steps ---------- */
.step-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.step-card{
 position:relative;background:var(--surface);border:1px solid var(--line);
 border-radius:var(--r-lg);padding:26px 22px 22px;box-shadow:var(--sh-1);
 transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--line-2);}
.step-no{
 position:absolute;top:-16px;left:22px;width:34px;height:34px;border-radius:11px;
 background:var(--grad);color:#fff;display:grid;place-items:center;
 font-size:15px;font-weight:800;box-shadow:0 8px 18px rgba(15,123,214,.30);
}
.step-card h3{font-size:16.5px;font-weight:800;margin:12px 0 8px;color:var(--ink);}
.step-card p{font-size:13.8px;color:var(--muted);line-height:1.78;margin:0;}

/* ---------- faq ---------- */
.faq-wrap{max-width:900px;}
.faq-item{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--r);
 margin-bottom:12px;overflow:hidden;box-shadow:var(--sh-1);
 transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:var(--line-2);box-shadow:var(--sh-2);}
.faq-q{
 width:100%;display:flex;align-items:center;justify-content:space-between;gap:14px;
 background:none;border:none;text-align:left;cursor:pointer;
 padding:17px 20px;font-size:15.5px;font-weight:700;color:var(--ink);
 transition:color .2s ease;
}
.faq-q:hover{color:var(--brand);}
.faq-q .fq-ic{
 width:24px;height:24px;flex:0 0 24px;border-radius:8px;display:grid;place-items:center;
 background:rgba(15,123,214,.10);color:var(--brand);font-size:16px;font-weight:800;line-height:1;
 transition:transform .25s ease;
}
.faq-item.open .faq-q .fq-ic{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease;}
.faq-item.open .faq-a{max-height:360px;}
.faq-a p{margin:0;padding:0 20px 18px;font-size:14px;color:var(--muted);line-height:1.82;}

/* ---------- contact ---------- */
.contact-shell{
 background:var(--grad-deep);border-radius:var(--r-xl);padding:44px 40px;color:#fff;
 position:relative;overflow:hidden;box-shadow:var(--sh-3);
}
.contact-shell::after{
 content:"";position:absolute;inset:0;pointer-events:none;
 background:
 radial-gradient(620px 320px at 88% 4%,rgba(18,184,166,.28),transparent 64%),
 radial-gradient(520px 300px at 2% 96%,rgba(15,123,214,.32),transparent 62%);
}
.contact-inner{position:relative;z-index:2;}
.contact-shell h2{font-size:clamp(21px,2.6vw,28px);font-weight:800;margin:0 0 10px;color:#fff;letter-spacing:-.3px;}
.contact-shell p.lead-tx{color:#c3daed;font-size:15px;line-height:1.82;margin:0 0 26px;max-width:640px;}
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;}
.form-field{display:flex;flex-direction:column;gap:7px;}
.form-field.full{grid-column:1 / -1;}
.form-field label{font-size:13px;font-weight:700;color:#a9c6dd;letter-spacing:.3px;}
.form-field input,.form-field textarea{
 width:100%;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.22);
 border-radius:10px;padding:11px 14px;color:#ffffff;font-size:14.5px;
 transition:border-color .2s ease,background .2s ease,box-shadow .2s ease;
}
.form-field input::placeholder,.form-field textarea::placeholder{color:#88a8c1;}
.form-field input:focus,.form-field textarea:focus{
 outline:none;border-color:rgba(18,184,166,.85);background:rgba(255,255,255,.13);
 box-shadow:0 0 0 3px rgba(18,184,166,.20);
}
.form-field textarea{min-height:104px;resize:vertical;}
.form-foot{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:20px;}
.form-tip{font-size:13px;color:#a9c6dd;line-height:1.7;}
.form-msg{font-size:13.5px;font-weight:700;color:#7ce9da;margin-top:12px;display:none;}
.form-msg.show{display:block;}

/* ---------- footer ---------- */
.site-footer{background:#071a2b;color:#a9c6dd;padding:54px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:34px;padding-bottom:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:16.5px;margin-bottom:14px;}
.footer-about{font-size:13.5px;line-height:1.82;color:#8ba9c2;margin:0;}
.site-footer h4{font-size:14px;font-weight:800;color:#ffffff;margin:0 0 14px;letter-spacing:.4px;}
.footer-list{list-style:none;margin:0;padding:0;}
.footer-list li{margin-bottom:9px;}
.footer-list a{color:#8ba9c2;font-size:13.5px;transition:color .2s ease,padding-left .2s ease;}
.footer-list a:hover{color:#5fe0cd;padding-left:4px;}
.footer-bottom{
 border-top:1px solid rgba(255,255,255,.10);padding:18px 0;
 display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
 font-size:12.8px;color:#7d9bb4;
}
.fb-right{letter-spacing:.3px;}

/* ---------- responsive ---------- */
@media (max-width:1024px){
 .metric-grid{grid-template-columns:repeat(2,1fr);}
 .matrix-grid{grid-template-columns:1fr;}
 .news-grid{grid-template-columns:1fr;}
 .step-grid{grid-template-columns:1fr;}
 .guard-grid{grid-template-columns:1fr;}
 .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:991px){
 .navbar-collapse{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:14px;margin-top:10px;box-shadow:var(--sh-2);
 }
 .nav-links{align-items:flex-start;}
 .nav-links .nav-link{width:100%;padding:10px 12px;}
 .nav-links .nav-link.active::after{display:none;}
 .nav-links .nav-link.active{background:rgba(15,123,214,.10);}
 .nav-right{flex-direction:column;align-items:stretch;margin-left:0;gap:12px;margin-top:12px;}
 .nav-stage{justify-content:center;}
 .hero{padding:44px 0 52px;}
 .hero-panel{margin-top:6px;max-width:420px;}
 .hero-panel img{aspect-ratio:5/4;}
 .contact-shell{padding:32px 22px;}
 .form-grid{grid-template-columns:1fr;}
}
@media (max-width:768px){
 .sec{padding:48px 0;}
 .metric-grid{grid-template-columns:1fr 1fr;gap:12px;}
 .pack-card{flex-direction:column;}
 .pack-thumb{width:100%;flex:none;}
 .pack-thumb img{height:150px;}
 .news-card{flex-direction:column;}
 .news-thumb{width:100%;flex:none;}
 .news-thumb img{height:160px;}
 .footer-grid{grid-template-columns:1fr;}
 .brand-text{font-size:15.5px;}
}
@media (max-width:520px){
 .metric-grid{grid-template-columns:1fr;}
 .hero-actions .btn-brand,.hero-actions .btn-ghost{width:100%;}
 .hero h1{font-size:25px;}
 .panel-row strong{font-size:13.5px;}
 .panel-row span{font-size:10.5px;}
 .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}