/* roulang page: index */
:root{
  --primary:#1F5AA6;
  --primary-dark:#164378;
  --primary-soft:#E7EFF9;
  --alt:#F6F9FC;
  --accent:#E8792B;
  --accent-soft:#FDF0E6;
  --trust:#2E8B72;
  --ink:#16202C;
  --muted:#4E5D6E;
  --weak:#8794A5;
  --line:#E2E9F1;
  --line-strong:#CFDAE6;
  --radius:14px;
  --radius-lg:18px;
  --radius-sm:10px;
  --shadow-1:0 1px 2px rgba(22,32,44,.04), 0 8px 24px -12px rgba(22,32,44,.12);
  --shadow-2:0 2px 4px rgba(22,32,44,.05), 0 18px 40px -18px rgba(31,90,166,.22);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:#FFFFFF;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--primary-dark);}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
p{margin:0 0 16px;}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;color:var(--ink);font-weight:600;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:2px;
}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
.grid-x.row-gap{margin-left:-12px;margin-right:-12px;}
.grid-x.row-gap > .cell{padding-left:12px;padding-right:12px;}

/* ===== Header ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-inner{
  display:flex;
  align-items:center;
  gap:20px;
  height:72px;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--ink);
}
.logo:hover{color:var(--ink);}
.logo-mark{
  width:10px;
  height:10px;
  border-radius:2px;
  background:var(--primary);
  box-shadow:0 0 0 3px var(--primary-soft);
}
.logo-text{
  font-size:18px;
  font-weight:700;
  letter-spacing:-.01em;
  white-space:nowrap;
}
.logo-text em{
  font-style:normal;
  font-weight:400;
  color:var(--primary);
}
.nav-links{
  display:flex;
  align-items:center;
  gap:26px;
  margin-left:auto;
}
.nav-links a{
  position:relative;
  display:inline-block;
  font-size:14.5px;
  font-weight:500;
  color:var(--muted);
  padding:8px 0;
  white-space:nowrap;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:2px;
  background:var(--primary);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .2s ease;
}
.nav-links a:hover{color:var(--ink);}
.nav-links a:hover::after,
.nav-links a.active::after{transform:scaleX(1);}
.nav-links a.active{color:var(--ink);font-weight:600;}
.nav-actions{
  display:flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
  margin-left:8px;
}
.nav-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:42px;
  padding:0 20px;
  border-radius:999px;
  background:var(--primary);
  color:#fff;
  font-size:14px;
  font-weight:600;
  transition:background .18s ease,transform .18s ease,box-shadow .18s ease;
}
.nav-cta:hover{
  background:var(--primary-dark);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:var(--shadow-2);
}
.nav-icon{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:42px;
  height:42px;
  border-radius:999px;
  border:1px solid var(--line-strong);
  color:var(--muted);
  font-size:15px;
  transition:border-color .18s ease,color .18s ease,background .18s ease;
}
.nav-icon:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-soft);}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  margin-left:auto;
  border:1px solid var(--line-strong);
  border-radius:10px;
  background:#fff;
  cursor:pointer;
  padding:0;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:4px;
}
.nav-toggle span{
  display:block;
  width:18px;
  height:1.5px;
  background:var(--ink);
  transition:transform .2s ease,opacity .2s ease;
}
.nav-toggle.open span:nth-child(1){transform:translateY(5.5px) rotate(45deg);}
.nav-toggle.open span:nth-child(2){opacity:0;}
.nav-toggle.open span:nth-child(3){transform:translateY(-5.5px) rotate(-45deg);}
.mobile-drawer{
  display:none;
  border-top:1px solid var(--line);
  background:#fff;
  padding:8px 24px 24px;
}
.mobile-drawer.open{display:block;}
.mobile-drawer a.drawer-link{
  display:block;
  font-size:17px;
  color:var(--muted);
  line-height:56px;
  border-bottom:1px solid var(--line);
}
.mobile-drawer a.drawer-link:hover,
.mobile-drawer a.drawer-link.active{color:var(--primary);}
.mobile-drawer .btn{margin-top:18px;width:100%;}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:13px 26px;
  border-radius:var(--radius-sm);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary{
  background:var(--primary);
  color:#fff;
  box-shadow:0 2px 0 var(--primary-dark);
}
.btn-primary:hover{
  background:var(--primary-dark);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:var(--shadow-2);
}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{
  background:#fff;
  color:var(--primary);
  border-color:var(--line-strong);
}
.btn-ghost:hover{
  border-color:var(--primary);
  background:var(--primary-soft);
  color:var(--primary-dark);
}
.btn-accent{
  background:var(--accent);
  color:#fff;
  box-shadow:0 2px 0 #c05f1c;
}
.btn-accent:hover{background:#d06a22;color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-block{width:100%;}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14.5px;
  font-weight:600;
  color:var(--primary);
  border-bottom:1.5px solid var(--primary);
  padding-bottom:2px;
  transition:color .18s ease,border-color .18s ease,transform .18s ease;
}
.link-arrow:hover{color:var(--accent);border-color:var(--accent);transform:translateX(2px);}

/* ===== Hero ===== */
.hero{
  position:relative;
  overflow:hidden;
  border-bottom:1px solid var(--line);
  background-image:
    linear-gradient(90deg,#ffffff 0%,rgba(255,255,255,.92) 45%,rgba(255,255,255,.35) 100%),
    url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center right;
  background-repeat:no-repeat;
}
.hero-inner{
  min-height:520px;
  display:flex;
  align-items:center;
  padding:76px 0;
}
.hero-copy{max-width:640px;}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:6px;
  border:1px solid #f0c9a8;
  background:var(--accent-soft);
  color:#a9531a;
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.04em;
  margin-bottom:20px;
}
.hero-badge::before{
  content:"";
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--accent);
}
.hero-title{
  font-size:38px;
  line-height:1.25;
  font-weight:700;
  margin:0 0 18px;
}
.hero-sub{
  font-size:16.5px;
  color:var(--muted);
  line-height:1.85;
  max-width:560px;
  margin:0 0 30px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.hero-points{
  display:flex;
  flex-wrap:wrap;
  border-top:1px solid var(--line-strong);
  padding-top:20px;
}
.hero-points li{
  position:relative;
  font-size:13.5px;
  color:var(--muted);
  padding:0 20px;
  line-height:1.7;
}
.hero-points li::before{
  content:"";
  position:absolute;
  left:0;
  top:9px;
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--trust);
}
.hero-points li:first-child{padding-left:0;}
.hero-points li:first-child::before{display:none;}
.hero-points li + li{border-left:1px dashed var(--line-strong);}

/* ===== Trust bar ===== */
.trustbar{
  background:var(--alt);
  border-bottom:1px solid var(--line);
}
.trust-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
}
.trust-item{
  padding:24px 26px;
  border-left:1px dashed var(--line-strong);
}
.trust-item:first-child{border-left:0;padding-left:0;}
.trust-num{
  font-size:22px;
  font-weight:700;
  color:var(--primary);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;
}
.trust-num small{font-size:13px;font-weight:600;margin-left:2px;}
.trust-label{
  font-size:13.5px;
  color:var(--muted);
  margin-top:2px;
}

/* ===== Sections ===== */
.section{padding:96px 0;}
.section-tight{padding:64px 0;}
.section-alt{background:var(--alt);}
.section-head{max-width:740px;margin-bottom:48px;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.18em;
  color:var(--primary);
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";
  width:18px;
  height:2px;
  background:var(--accent);
}
.section-head h2{
  font-size:26px;
  font-weight:600;
  margin:0 0 12px;
}
.section-head p{
  font-size:15px;
  color:var(--muted);
  margin:0;
  line-height:1.85;
}

/* ===== Category cards ===== */
.cat-card{
  display:flex;
  flex-direction:column;
  height:100%;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.cat-card:hover{
  transform:translateY(-3px);
  box-shadow:var(--shadow-2);
  border-color:var(--line-strong);
}
.cat-thumb{
  position:relative;
  aspect-ratio:4/3;
  background:var(--primary-soft);
  overflow:hidden;
}
.cat-thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .22s ease;
}
.cat-card:hover .cat-thumb img{transform:scale(1.03);}
.cat-index{
  position:absolute;
  left:14px;
  top:14px;
  font-size:12px;
  font-weight:700;
  letter-spacing:.08em;
  color:#fff;
  background:rgba(22,67,120,.86);
  padding:4px 10px;
  border-radius:6px;
  font-variant-numeric:tabular-nums;
}
.cat-body{
  padding:22px 22px 24px;
  display:flex;
  flex-direction:column;
  flex:1 1 auto;
}
.cat-body h3{
  font-size:18px;
  font-weight:600;
  margin:0 0 8px;
}
.cat-body p{
  font-size:14px;
  color:var(--muted);
  line-height:1.8;
  margin:0 0 18px;
}
.cat-body .link-arrow{margin-top:auto;align-self:flex-start;}

/* ===== Ladder ===== */
.ladder{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
}
.ladder-step{
  position:relative;
  display:flex;
  flex-direction:column;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px 22px 24px;
  box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.ladder-step::before{
  content:"";
  position:absolute;
  left:0;
  right:0;
  top:0;
  height:3px;
  background:var(--line);
  border-radius:var(--radius) var(--radius) 0 0;
}
.ladder-step.is-rec::before{background:var(--accent);}
.ladder-step.is-rec{
  transform:translateY(-6px);
  box-shadow:var(--shadow-2);
  border-color:var(--line-strong);
}
.ladder-step:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.ladder-step.is-rec:hover{transform:translateY(-8px);}
.step-num{
  font-size:12px;
  font-weight:700;
  letter-spacing:.14em;
  color:var(--weak);
  font-variant-numeric:tabular-nums;
}
.ladder-step.is-rec .step-num{color:var(--accent);}
.step-title{
  font-size:17px;
  font-weight:600;
  margin:10px 0 4px;
}
.step-threshold{
  font-size:13px;
  color:var(--weak);
  margin-bottom:16px;
}
.step-list{
  border-top:1px dashed var(--line-strong);
  padding-top:14px;
  margin-bottom:20px;
  flex:1 1 auto;
}
.step-list li{
  position:relative;
  padding-left:16px;
  font-size:13.5px;
  color:var(--muted);
  line-height:1.75;
  margin-bottom:6px;
}
.step-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:9px;
  width:5px;
  height:5px;
  border-radius:50%;
  background:var(--line-strong);
}
.ladder-step.is-rec .step-list li::before{background:var(--accent);}
.step-action{
  font-size:14px;
  font-weight:600;
  color:var(--primary);
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.step-action:hover{color:var(--primary-dark);}

/* ===== Compare table ===== */
.cmp-wrap{
  position:relative;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  overflow:hidden;
}
.cmp-scroll{
  overflow-x:auto;
  -webkit-overflow-scrolling:touch;
}
.cmp-table{
  width:100%;
  min-width:820px;
  border-collapse:collapse;
  font-size:14.5px;
  margin:0;
}
.cmp-table th,.cmp-table td{
  padding:16px 18px;
  border-bottom:1px solid var(--line);
  text-align:center;
  vertical-align:middle;
}
.cmp-table thead th{
  background:var(--primary-soft);
  color:var(--primary-dark);
  font-weight:600;
  font-size:14.5px;
  border-bottom:1px solid var(--line-strong);
}
.cmp-table thead th:first-child{
  text-align:left;
  color:var(--muted);
  font-weight:500;
}
.cmp-table tbody th{
  text-align:left;
  font-weight:500;
  color:var(--muted);
  background:#fff;
  white-space:nowrap;
}
.cmp-table tbody tr:nth-child(even) td{background:var(--alt);}
.cmp-table tbody tr:last-child th,
.cmp-table tbody tr:last-child td{border-bottom:0;}
.cmp-table tbody th:first-child,
.cmp-table thead th:first-child{
  position:sticky;
  left:0;
  z-index:2;
  background:#fff;
  border-right:1px solid var(--line);
}
.cmp-table thead th:first-child{background:var(--primary-soft);}
.cmp-col-rec{background:#fff;position:relative;}
.cmp-table thead th.cmp-col-rec{
  background:var(--primary);
  color:#fff;
}
.rec-tag{
  display:inline-block;
  margin-left:6px;
  font-size:11px;
  font-weight:700;
  letter-spacing:.06em;
  color:#a9531a;
  background:var(--accent-soft);
  border-radius:999px;
  padding:2px 8px;
  vertical-align:middle;
}
.cmp-price{
  font-size:22px;
  font-weight:700;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;
}
.cmp-price span{font-size:12.5px;font-weight:500;color:var(--weak);margin-left:2px;}
.cmp-yes{color:var(--trust);font-weight:600;}
.cmp-no{color:var(--weak);}
.cmp-fade{
  position:absolute;
  right:0;
  top:0;
  bottom:0;
  width:44px;
  pointer-events:none;
  background:linear-gradient(90deg,rgba(255,255,255,0),rgba(255,255,255,.95));
  border-radius:0 var(--radius-lg) var(--radius-lg) 0;
}

/* ===== News ===== */
.news-card{
  display:flex;
  flex-direction:column;
  height:100%;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.news-link{display:flex;flex-direction:column;height:100%;color:inherit;}
.news-link:hover{color:inherit;}
.news-thumb{
  position:relative;
  aspect-ratio:16/9;
  background:var(--primary-soft);
  overflow:hidden;
}
.news-thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .22s ease;
}
.news-card:hover .news-thumb img{transform:scale(1.03);}
.news-body{
  padding:18px 20px 20px;
  display:flex;
  flex-direction:column;
  flex:1 1 auto;
}
.news-meta{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:10px;
  font-size:12px;
  color:var(--weak);
}
.tag{
  display:inline-flex;
  align-items:center;
  padding:3px 9px;
  border-radius:6px;
  font-size:11.5px;
  font-weight:600;
  letter-spacing:.04em;
  color:var(--primary-dark);
  background:var(--primary-soft);
}
.news-body h3{
  font-size:16.5px;
  font-weight:600;
  line-height:1.6;
  margin:0 0 8px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-summary{
  font-size:13.5px;
  color:var(--muted);
  line-height:1.8;
  margin:0 0 16px;
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-foot{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  border-top:1px dashed var(--line-strong);
  padding-top:12px;
  font-size:12.5px;
  color:var(--weak);
}
.news-foot .arrow{color:var(--primary);font-size:14px;}
.news-empty{
  grid-column:1/-1;
  border:1px dashed var(--line-strong);
  border-radius:var(--radius);
  background:#fff;
  padding:44px 24px;
  text-align:center;
  color:var(--weak);
  font-size:14.5px;
}
.news-empty a{margin-top:10px;display:inline-block;}

/* ===== Countdown band ===== */
.band{
  background:var(--ink);
  color:#fff;
  border-top:1px solid #22303f;
  border-bottom:1px solid #22303f;
}
.band-inner{
  display:flex;
  align-items:center;
  gap:40px;
  padding:44px 0;
  flex-wrap:wrap;
}
.band-copy{flex:1 1 320px;min-width:260px;}
.band-copy h2{
  color:#fff;
  font-size:22px;
  font-weight:600;
  margin:0 0 8px;
}
.band-copy p{
  margin:0;
  font-size:14px;
  color:#b9c5d2;
  line-height:1.8;
}
.countdown{
  display:flex;
  align-items:center;
  gap:0;
}
.cd-cell{
  padding:0 20px;
  text-align:center;
  border-left:1px solid rgba(255,255,255,.16);
}
.cd-cell:first-child{border-left:0;}
.cd-num{
  font-size:34px;
  font-weight:700;
  line-height:1.1;
  color:#fff;
  font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;
}
.cd-label{font-size:12px;color:#93a3b4;letter-spacing:.06em;margin-top:4px;}
.band .btn-accent{flex:0 0 auto;}

/* ===== Form ===== */
.form-layout{
  display:grid;
  grid-template-columns:0.9fr 1.1fr;
  gap:48px;
  align-items:start;
}
.form-notes h2{font-size:26px;margin:0 0 14px;}
.form-notes > p{font-size:15px;color:var(--muted);line-height:1.85;}
.note-list{margin-top:26px;border-top:1px solid var(--line);}
.note-list li{
  padding:16px 0;
  border-bottom:1px solid var(--line);
  font-size:14px;
  color:var(--muted);
  line-height:1.8;
}
.note-list strong{color:var(--ink);display:block;font-size:15px;margin-bottom:2px;font-weight:600;}
.form-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  padding:32px;
}
.field{margin-bottom:18px;}
.field label{
  display:block;
  font-size:13px;
  color:var(--muted);
  margin-bottom:7px;
  font-weight:500;
}
.field .req{color:var(--primary);margin-left:2px;}
.field input[type="text"],
.field input[type="tel"],
.field select,
.field textarea{
  width:100%;
  min-height:48px;
  padding:12px 14px;
  font-size:15px;
  font-family:inherit;
  color:var(--ink);
  background:#fff;
  border:1px solid var(--line-strong);
  border-radius:var(--radius-sm);
  transition:border-color .18s ease,box-shadow .18s ease;
  box-shadow:none;
  margin:0;
}
.field textarea{min-height:112px;resize:vertical;line-height:1.75;}
.field input:focus,
.field select:focus,
.field textarea:focus{
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(31,90,166,.14);
  outline:none;
}
.field select{
  appearance:none;
  -webkit-appearance:none;
  background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%234E5D6E' d='M1.4 0 6 4.6 10.6 0 12 1.4 6 7.4 0 1.4z'/%3E%3C/svg%3E");
  background-repeat:no-repeat;
  background-position:right 14px center;
  padding-right:38px;
}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.check-line{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:13px;
  color:var(--muted);
  line-height:1.7;
  margin-bottom:20px;
}
.check-line input[type="checkbox"]{
  margin:4px 0 0;
  width:16px;
  height:16px;
  flex:0 0 auto;
  accent-color:var(--primary);
}
.form-hint{
  font-size:12.5px;
  color:var(--weak);
  margin-top:12px;
  line-height:1.7;
}
.form-alert{
  display:none;
  padding:12px 14px;
  border-radius:var(--radius-sm);
  font-size:13.5px;
  margin-bottom:16px;
  line-height:1.7;
}
.form-alert.is-ok{display:block;background:#eaf5f1;color:#1f6b56;border:1px solid #c8e5db;}
.form-alert.is-err{display:block;background:#fdf0e6;color:#a9531a;border:1px solid #f0c9a8;}

/* ===== FAQ ===== */
.faq-list{border-top:1px solid var(--line);max-width:900px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  text-align:left;
  background:none;
  border:0;
  padding:22px 0;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  cursor:pointer;
  line-height:1.6;
  min-height:44px;
  transition:color .18s ease;
}
.faq-q:hover{color:var(--primary);}
.faq-icon{
  position:relative;
  flex:0 0 auto;
  width:18px;
  height:18px;
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--primary);
  transition:transform .2s ease,opacity .2s ease;
}
.faq-icon::before{left:0;top:8px;width:18px;height:1.5px;}
.faq-icon::after{left:8.25px;top:0;width:1.5px;height:18px;}
.faq-item.open .faq-icon::after{transform:rotate(90deg);opacity:0;}
.faq-item.open .faq-icon::before{background:var(--accent);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .22s ease;
}
.faq-item.open .faq-a{max-height:340px;}
.faq-a p{
  font-size:15px;
  color:var(--muted);
  line-height:1.85;
  margin:0;
  padding:0 40px 22px 0;
}

/* ===== Footer ===== */
.site-footer{
  background:var(--alt);
  border-top:1px solid var(--line);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand .logo{margin-bottom:14px;}
.footer-brand p{
  font-size:13.5px;
  color:var(--muted);
  line-height:1.85;
  margin:0 0 8px;
  max-width:300px;
}
.footer-col h4{
  font-size:13px;
  font-weight:600;
  letter-spacing:.12em;
  color:var(--ink);
  margin:0 0 16px;
}
.footer-col li{margin-bottom:10px;}
.footer-col a,
.footer-col span{
  font-size:14px;
  color:var(--muted);
  line-height:1.7;
}
.footer-col a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:4px;}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:20px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--weak);
}
.to-top{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:13px;
  color:var(--muted);
  min-height:44px;
}
.to-top:hover{color:var(--primary);}

/* ===== Responsive ===== */
@media (max-width:1199px){
  .hero-title{font-size:34px;}
  .nav-links{gap:20px;}
  .hero-inner{min-height:480px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
  .footer-col:last-child{grid-column:1/-1;}
}
@media (max-width:1023px){
  .nav-links,.nav-actions .nav-icon{display:none;}
  .nav-toggle{display:flex;}
  .nav-actions{margin-left:auto;}
  .section{padding:72px 0;}
  .hero-inner{padding:60px 0;min-height:0;}
  .hero-copy{max-width:100%;}
  .ladder{grid-template-columns:repeat(2,1fr);}
  .ladder-step.is-rec{transform:none;}
  .ladder-step.is-rec:hover{transform:translateY(-4px);}
  .trust-grid{grid-template-columns:repeat(2,1fr);}
  .trust-item{padding:20px 22px;}
  .trust-item:nth-child(odd){border-left:0;padding-left:0;}
  .trust-item:nth-child(1),
  .trust-item:nth-child(2){border-bottom:1px dashed var(--line-strong);}
  .form-layout{grid-template-columns:1fr;gap:32px;}
  .band-inner{gap:24px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .section-tight{padding:44px 0;}
  .section-head{margin-bottom:32px;}
  .hero-title{font-size:27px;}
  .hero-sub{font-size:15px;}
  .hero-actions .btn{flex:1 1 100%;}
  .hero-points{flex-direction:column;gap:0;border-top:1px solid var(--line-strong);}
  .hero-points li{padding:10px 0 10px 16px;border-left:0;border-top:1px dashed var(--line-strong);}
  .hero-points li:first-child{border-top:0;}
  .hero-points li::before{top:19px;}
  .ladder{grid-template-columns:1fr;}
  .trust-grid{grid-template-columns:1fr;}
  .trust-item{border-left:0;padding-left:0;border-bottom:1px dashed var(--line-strong);}
  .trust-item:last-child{border-bottom:0;}
  .form-card{padding:24px 20px;}
  .field-row{grid-template-columns:1fr;gap:0;}
  .band-inner{padding:36px 0;}
  .cd-cell{padding:0 12px;}
  .cd-num{font-size:26px;}
  .band .btn-accent{width:100%;}
  .faq-q{font-size:15px;padding:18px 0;}
  .faq-a p{padding-right:0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-brand{grid-column:1/-1;}
  .footer-col:last-child{grid-column:1/-1;}
  .news-meta{flex-wrap:wrap;}
}
@media (max-width:480px){
  .hero-title{font-size:24px;}
  .logo-text{font-size:16px;}
  .section-head h2,.form-notes h2{font-size:21px;}
  .cmp-fade{display:none;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}

/* roulang page: article */
:root{
  --primary:#1F5AA6;
  --primary-dark:#164378;
  --primary-soft:#E7EFF9;
  --block-alt:#F6F9FC;
  --accent:#E8792B;
  --trust:#2E8B72;
  --ink:#16202C;
  --text-2:#4E5D6E;
  --text-3:#8794A5;
  --border:#E2E9F1;
  --border-strong:#CFDAE6;
  --white:#FFFFFF;
  --radius-sm:10px;
  --radius-md:14px;
  --radius-lg:18px;
  --shadow-1:0 1px 2px rgba(22,32,44,.04), 0 8px 24px -12px rgba(22,32,44,.12);
  --shadow-2:0 2px 4px rgba(22,32,44,.05), 0 18px 40px -18px rgba(31,90,166,.22);
  --space:8px;
  --ease:180ms ease;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--white);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border:0;}
a{color:var(--primary);text-decoration:none;transition:color var(--ease),border-color var(--ease),background-color var(--ease);}
a:hover{color:var(--primary-dark);}
ul,ol{margin:0 0 16px;padding-left:20px;}
p{margin:0 0 20px;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
.sr-only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;
  clip:rect(0,0,0,0);white-space:nowrap;border:0;
}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;height:72px;
}
.logo{
  display:inline-flex;align-items:center;gap:10px;
  font-size:20px;line-height:1;color:var(--ink);letter-spacing:-.01em;
  white-space:nowrap;
}
.logo:hover{color:var(--ink);}
.logo-mark{
  width:10px;height:10px;border-radius:3px;
  background:var(--primary);display:inline-block;flex:0 0 auto;
}
.logo-text{font-weight:700;}
.logo-text em{
  font-style:normal;font-weight:400;color:var(--primary);margin-left:2px;
}
.nav-links{
  display:flex;align-items:center;gap:28px;flex:1 1 auto;justify-content:center;
}
.nav-links a{
  position:relative;
  font-size:14.5px;font-weight:500;color:var(--text-2);
  padding:6px 0;
  white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:50%;right:50%;bottom:0;height:2px;
  background:var(--primary);border-radius:2px;
  transition:left var(--ease),right var(--ease);
}
.nav-links a:hover{color:var(--ink);}
.nav-links a:hover::after{left:0;right:0;}
.nav-links a.active{color:var(--ink);}
.nav-links a.active::after{left:0;right:0;}
.header-actions{display:flex;align-items:center;gap:12px;}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:var(--radius-sm);
  border:1px solid var(--border);background:#fff;color:var(--text-2);
  font-size:15px;cursor:pointer;transition:all var(--ease);
}
.icon-btn:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-soft);}
.nav-toggle{display:none;}
.mobile-drawer{
  display:none;
  border-top:1px solid var(--border);
  background:#fff;
  padding:8px 0 20px;
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer a{
  display:block;font-size:18px;color:var(--ink);
  padding:14px 0;border-bottom:1px solid var(--border);
}
.mobile-drawer a:hover{color:var(--primary);}
.mobile-drawer .btn{width:100%;margin-top:18px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;cursor:pointer;
  transition:transform var(--ease),box-shadow var(--ease),background-color var(--ease),border-color var(--ease),color var(--ease);
  text-align:center;
}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1);}
.btn-ghost{background:#fff;color:var(--primary);border-color:var(--border-strong);}
.btn-ghost:hover{background:var(--primary-soft);border-color:var(--primary);color:var(--primary);transform:translateY(-1px);}
.btn-sm{padding:11px 20px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.6;cursor:not-allowed;transform:none;box-shadow:none;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14.5px;font-weight:600;color:var(--primary);
  border-bottom:1.5px solid var(--primary);padding-bottom:2px;
}
.link-arrow:hover{color:var(--accent);border-color:var(--accent);transform:translateX(2px);}
.link-arrow i{font-size:12px;}

/* ============ 面包屑 ============ */
.crumb-bar{
  border-bottom:1px solid var(--border);
  background:#fff;
}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:12.5px;color:var(--text-3);
  padding:14px 0;
}
.crumb a{color:var(--text-3);}
.crumb a:hover{color:var(--primary);}
.crumb .sep{color:var(--border-strong);}
.crumb .current{color:var(--ink);max-width:60%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ============ 文章头部 ============ */
.article-hero{
  position:relative;
  padding:56px 0 48px;
  background-image:
    linear-gradient(100deg,#FFFFFF 0%,rgba(255,255,255,.95) 46%,rgba(255,255,255,.62) 100%),
    url('/assets/images/backpic/back-3.webp');
  background-size:cover,cover;
  background-position:center right,center right;
  background-repeat:no-repeat,no-repeat;
  border-bottom:1px solid var(--border);
}
.article-hero-inner{max-width:860px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:6px;
  font-size:12px;letter-spacing:.08em;font-weight:600;
  background:var(--primary-soft);color:var(--primary-dark);
}
.badge-accent{background:#FDF0E6;color:#B85613;}
.article-hero h1{
  font-size:32px;line-height:1.35;font-weight:700;letter-spacing:-.01em;
  margin:18px 0 18px;color:var(--ink);
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;
  font-size:13.5px;color:var(--text-3);
}
.article-meta span{display:inline-flex;align-items:center;gap:6px;}
.article-meta i{font-size:12px;color:var(--text-3);}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--border-strong);}

/* ============ 文章主体 ============ */
.article-section{padding:56px 0 72px;}
.article-layout{row-gap:32px;}
.article-inner{max-width:800px;}
.article-body{font-size:16px;line-height:1.9;color:var(--ink);}
.article-body h2{
  position:relative;
  font-size:24px;font-weight:600;line-height:1.4;
  margin:40px 0 16px;padding-left:16px;letter-spacing:-.01em;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.28em;
  width:4px;height:18px;border-radius:2px;background:var(--primary);
}
.article-body h2:first-child{margin-top:0;}
.article-body h3{
  font-size:18px;font-weight:600;line-height:1.6;
  margin:32px 0 12px;color:var(--ink);
}
.article-body p{margin:0 0 20px;}
.article-body ul,.article-body ol{margin:0 0 22px;padding-left:22px;}
.article-body li{margin-bottom:10px;}
.article-body strong{font-weight:600;color:var(--ink);}
.article-body a{color:var(--primary);border-bottom:1px solid rgba(31,90,166,.35);}
.article-body a:hover{color:var(--accent);border-color:var(--accent);}
.article-body blockquote{
  margin:28px 0;padding:20px 24px;
  background:var(--primary-soft);
  border-left:3px solid var(--primary);
  border-radius:0 var(--radius-md) var(--radius-md) 0;
  color:var(--text-2);font-size:15.5px;line-height:1.85;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  border-radius:12px;margin:28px auto;box-shadow:var(--shadow-1);
}
.article-body figure{margin:28px 0;}
.article-body figcaption{
  font-size:13px;color:var(--text-3);text-align:center;margin-top:10px;
}
.article-body table{
  width:100%;border-collapse:collapse;margin:24px 0 28px;
  font-size:14.5px;background:#fff;
  border:1px solid var(--border);border-radius:var(--radius-sm);overflow:hidden;
}
.article-body thead th{
  background:var(--primary-soft);color:var(--primary-dark);
  font-weight:600;text-align:left;padding:12px 16px;
  border:0;border-bottom:1px solid var(--border);
}
.article-body tbody td{
  padding:12px 16px;border:0;border-bottom:1px solid var(--border);color:var(--text-2);
}
.article-body tbody tr:last-child td{border-bottom:0;}
.article-body tbody tr:nth-child(even){background:var(--block-alt);}
.article-body hr{border:0;border-top:1px solid var(--border);margin:36px 0;}
.article-body code{
  background:var(--block-alt);border:1px solid var(--border);
  border-radius:6px;padding:2px 6px;font-size:14px;
}

/* 无文提示 */
.article-empty{
  border:1px dashed var(--border-strong);border-radius:var(--radius-lg);
  padding:56px 32px;text-align:center;background:var(--block-alt);
}
.article-empty h2{font-size:20px;font-weight:600;margin:0 0 12px;padding:0;}
.article-empty h2::before{display:none;}
.article-empty p{color:var(--text-2);margin-bottom:24px;}

/* ============ 侧栏目录 ============ */
.article-side{position:relative;}
.toc-card{
  position:sticky;top:96px;
  background:#fff;border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:20px 20px 22px;
  box-shadow:var(--shadow-1);
}
.toc-head{
  display:flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--text-2);
  padding-bottom:12px;border-bottom:1px solid var(--border);margin-bottom:12px;
}
.toc-head i{color:var(--primary);font-size:12px;}
.toc-list{display:flex;flex-direction:column;max-height:46vh;overflow:auto;}
.toc-link{
  display:block;padding:8px 0 8px 14px;
  border-left:2px solid var(--border);
  font-size:14px;line-height:1.6;color:var(--text-2);
  transition:all var(--ease);
}
.toc-link:hover{color:var(--primary);border-color:var(--border-strong);padding-left:18px;}
.toc-link.is-active{color:var(--primary);border-color:var(--primary);font-weight:600;}
.toc-empty{display:none;font-size:13.5px;color:var(--text-3);line-height:1.8;}
.toc-cta{
  margin-top:18px;padding-top:16px;border-top:1px solid var(--border);
}
.toc-cta p{font-size:13.5px;color:var(--text-2);margin:0 0 12px;line-height:1.7;}

/* ============ 文末 CTA ============ */
.cta-strip{
  margin:48px 0 0;
  background:var(--primary-soft);
  border:1px solid #D3E2F4;
  border-radius:var(--radius-lg);
  padding:32px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
}
.cta-strip h2{
  font-size:22px;font-weight:600;margin:0 0 8px;letter-spacing:-.01em;color:var(--primary-dark);
}
.cta-strip p{margin:0;font-size:14.5px;color:var(--text-2);max-width:640px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ============ 相关推荐 ============ */
.related-section{
  padding:64px 0 72px;
  background:var(--block-alt);
  border-top:1px solid var(--border);
}
.section-head{margin-bottom:32px;max-width:720px;}
.section-head .eyebrow{
  font-size:12px;letter-spacing:.08em;font-weight:600;color:var(--primary);
  display:block;margin-bottom:10px;
}
.section-head h2{font-size:26px;font-weight:600;line-height:1.4;margin:0 0 10px;letter-spacing:-.01em;}
.section-head p{margin:0;color:var(--text-2);font-size:15px;}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.rec-card{
  display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-md);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.rec-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--border-strong);}
.rec-thumb{
  position:relative;aspect-ratio:16/9;background:var(--primary-soft);overflow:hidden;
}
.rec-thumb img{
  width:100%;height:100%;object-fit:cover;
  transition:transform 220ms ease;
}
.rec-card:hover .rec-thumb img{transform:scale(1.03);}
.rec-body{padding:20px;display:flex;flex-direction:column;flex:1 1 auto;}
.rec-body h3{
  font-size:17px;font-weight:600;line-height:1.55;margin:12px 0 10px;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rec-body p{
  font-size:14px;color:var(--text-2);line-height:1.8;margin:0 0 18px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.rec-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);
  padding-top:14px;border-top:1px solid var(--border);
}
.rec-foot i{color:var(--primary);font-size:12px;}
.back-link-row{padding:28px 0 0;}
.back-link-row .link-arrow{border-bottom-width:1.5px;}

/* ============ 页脚 ============ */
.site-footer{
  border-top:1px solid var(--border);
  background:var(--block-alt);
  padding:56px 0 0;
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:40px;
}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--text-2);line-height:1.85;margin:0 0 12px;max-width:340px;}
.footer-col h4{
  font-size:14px;font-weight:600;color:var(--ink);margin:0 0 16px;letter-spacing:.02em;
}
.footer-col ul{list-style:none;margin:0;padding:0;}
.footer-col li{margin-bottom:10px;}
.footer-col a,.footer-col span{font-size:14px;color:var(--text-2);line-height:1.7;}
.footer-col a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:4px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  border-top:1px solid var(--border-strong);
  padding:20px 0 24px;font-size:13px;color:var(--text-3);
}
.to-top{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--text-2);}
.to-top:hover{color:var(--primary);}
.to-top i{font-size:11px;}

/* ============ 响应式 ============ */
@media screen and (max-width:1199px){
  .container{padding-left:22px;padding-right:22px;}
  .nav-links{gap:20px;}
  .article-hero h1{font-size:30px;}
}
@media screen and (max-width:1023px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-actions .btn-sm{display:none;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .toc-card{position:static;}
  .article-hero{padding:44px 0 36px;}
  .article-hero h1{font-size:28px;}
}
@media screen and (max-width:767px){
  .header-inner{height:60px;}
  .logo{font-size:18px;}
  .article-hero{padding:32px 0 28px;}
  .article-hero h1{font-size:26px;margin:14px 0 14px;}
  .article-meta{gap:8px 16px;font-size:13px;}
  .article-section{padding:36px 0 48px;}
  .article-body{font-size:15.5px;line-height:1.9;}
  .article-body h2{font-size:21px;margin-top:34px;}
  .article-body h3{font-size:17px;}
  .cta-strip{padding:24px;flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .related-section{padding:44px 0 52px;}
  .section-head h2{font-size:22px;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px;padding-bottom:28px;}
  .site-footer{padding-top:40px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap;}
  .crumb .current{max-width:100%;white-space:normal;}
}
@media screen and (max-width:480px){
  .container{padding-left:18px;padding-right:18px;}
  .article-hero h1{font-size:23px;}
  .article-body h2{font-size:19px;}
  .btn{padding:13px 22px;font-size:14.5px;}
  .cta-strip h2{font-size:19px;}
  .rec-body{padding:16px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important;scroll-behavior:auto!important;}
}

/* roulang page: category1 */
:root{
  --primary:#1F5AA6;
  --primary-dark:#164378;
  --primary-soft:#E7EFF9;
  --accent:#E8792B;
  --accent-soft:#FBEDE1;
  --trust:#2E8B72;
  --ink:#16202C;
  --sub:#4E5D6E;
  --muted:#8794A5;
  --line:#E2E9F1;
  --line-strong:#CFDAE6;
  --paper:#FBF8F2;
  --paper-2:#F4EEE2;
  --card-line:#E6DECF;
  --white:#FFFFFF;
  --radius-sm:8px;
  --radius:14px;
  --radius-lg:18px;
  --shadow-1:0 1px 2px rgba(22,32,44,.04),0 8px 24px -12px rgba(22,32,44,.12);
  --shadow-2:0 2px 4px rgba(22,32,44,.05),0 18px 40px -18px rgba(31,90,166,.22);
  --ease:180ms ease;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--primary);text-decoration:none;transition:color var(--ease),border-color var(--ease),background var(--ease);}
a:hover{color:var(--primary-dark);}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:-.01em;line-height:1.32;}
h1{font-size:36px;font-weight:700;line-height:1.25;}
h2{font-size:26px;}
h3{font-size:19px;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.grid-x{display:flex;flex-wrap:wrap;margin-left:-12px;margin-right:-12px;}
.grid-x>.cell{padding-left:12px;padding-right:12px;min-width:0;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(251,248,242,.94);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line-strong);
  box-shadow:0 1px 0 rgba(255,255,255,.7) inset;
}
.header-inner{display:flex;align-items:center;gap:28px;height:72px;}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink);flex:0 0 auto;}
.logo:hover{color:var(--ink);}
.logo-mark{width:10px;height:10px;border-radius:2px;background:var(--accent);box-shadow:0 0 0 3px rgba(232,121,43,.16);}
.logo-text{font-size:19px;font-weight:700;letter-spacing:-.01em;white-space:nowrap;}
.logo-text em{font-style:normal;font-weight:400;color:var(--primary);margin-left:1px;}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:auto;}
.nav-links a{position:relative;display:inline-block;padding:8px 0;font-size:14.5px;font-weight:500;color:var(--sub);white-space:nowrap;}
.nav-links a::after{content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;background:var(--primary);transition:right var(--ease);}
.nav-links a:hover{color:var(--ink);}
.nav-links a:hover::after{right:0;}
.nav-links a.active{color:var(--ink);font-weight:600;}
.nav-links a.active::after{right:0;background:var(--accent);}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.icon-btn{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:10px;
  background:#fff;border:1px solid var(--card-line);color:var(--ink);
  cursor:pointer;transition:background var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.icon-btn:hover{background:var(--primary-soft);border-color:var(--line-strong);}
.mobile-drawer{display:none;border-top:1px solid var(--card-line);background:#fff;}
.mobile-drawer.is-open{display:block;}
.mobile-drawer .drawer-nav{display:flex;flex-direction:column;padding:6px 24px 18px;}
.mobile-drawer .drawer-nav a{
  font-size:18px;line-height:56px;color:var(--ink);
  border-bottom:1px solid #EFE9DC;
}
.mobile-drawer .drawer-nav a.active{color:var(--primary);font-weight:600;}
.mobile-drawer .drawer-cta{padding:0 24px 24px;}
.mobile-drawer .drawer-cta .btn{width:100%;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 26px;border-radius:10px;
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;cursor:pointer;
  transition:transform var(--ease),background var(--ease),border-color var(--ease),color var(--ease),box-shadow var(--ease);
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:none;box-shadow:var(--shadow-1);}
.btn-ghost{background:#fff;color:var(--primary);border-color:var(--line-strong);}
.btn-ghost:hover{background:var(--primary-soft);border-color:var(--primary);color:var(--primary-dark);}
.btn-light{background:#fff;color:var(--primary-dark);}
.btn-light:hover{background:#F3F7FC;color:var(--primary-dark);transform:translateY(-1px);}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.5);}
.btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;}
.btn-sm{padding:9px 18px;font-size:14px;border-radius:8px;min-height:40px;}
.btn-block{width:100%;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14.5px;font-weight:600;color:var(--primary);
  border-bottom:1.5px solid rgba(31,90,166,.4);padding-bottom:1px;
}
.text-link:hover{color:var(--accent);border-bottom-color:var(--accent);}
.text-link i{font-size:12px;transition:transform var(--ease);}
.text-link:hover i{transform:translateX(2px);}

/* ---------- breadcrumb ---------- */
.breadcrumb{padding:20px 0 0;font-size:13px;color:var(--muted);}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{margin:0 8px;color:#C6CEDA;}
.breadcrumb .current{color:var(--ink);}

/* ---------- hero ---------- */
.cat-hero{position:relative;overflow:hidden;background:var(--paper-2);border-bottom:1px solid var(--card-line);}
.cat-hero-bg{position:absolute;inset:0;background-size:cover;background-position:center right;background-repeat:no-repeat;}
.cat-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#FBF8F2 0%,rgba(251,248,242,.95) 44%,rgba(251,248,242,.42) 100%);}
.cat-hero-inner{position:relative;z-index:2;padding:56px 0 64px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  margin-bottom:18px;padding:6px 12px;border-radius:6px;
  background:var(--accent-soft);color:#B85A15;
  font-size:12px;font-weight:600;letter-spacing:.08em;
  border:1px solid rgba(232,121,43,.22);
}
.cat-hero h1{max-width:16em;margin-bottom:18px;}
.cat-hero .lead{max-width:34em;font-size:16.5px;color:var(--sub);margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:28px;}
.hero-checks{display:flex;flex-wrap:wrap;gap:0;border-top:1px solid var(--line-strong);padding-top:18px;}
.hero-checks span{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13.5px;color:var(--sub);padding-right:22px;margin-right:22px;
  border-right:1px solid var(--line-strong);
}
.hero-checks span:last-child{border-right:0;margin-right:0;padding-right:0;}
.hero-checks span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--trust);flex:0 0 auto;}
.hero-figure{
  position:relative;padding:10px;background:#fff;
  border:1px solid var(--card-line);border-radius:var(--radius);
  box-shadow:var(--shadow-1);
}
.hero-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:calc(var(--radius) - 4px);background:var(--primary-soft);}
.hero-figure .fig-cap{
  display:block;padding:10px 4px 2px;font-size:12.5px;color:var(--muted);text-align:center;
}

/* ---------- anchor bar ---------- */
.anchor-wrap{position:relative;z-index:6;margin-top:-30px;}
.anchor-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 26px;
  padding:16px 22px;background:#fff;
  border:1px solid var(--card-line);border-radius:var(--radius);
  box-shadow:var(--shadow-1);
}
.anchor-bar .anchor-label{font-size:12px;letter-spacing:.1em;color:var(--muted);font-weight:600;}
.anchor-bar a{font-size:14px;font-weight:500;color:var(--sub);}
.anchor-bar a:hover{color:var(--primary);}

/* ---------- sections ---------- */
.section{padding:88px 0;}
.section-sm{padding:56px 0;}
.section-paper{background:var(--paper-2);border-top:1px solid var(--card-line);border-bottom:1px solid var(--card-line);}
.section[id]{scroll-margin-top:92px;}
.section-head{max-width:740px;margin-bottom:40px;}
.kicker{display:inline-block;margin-bottom:12px;font-size:12px;font-weight:600;letter-spacing:.12em;color:var(--primary);}
.section-head h2{margin-bottom:12px;}
.section-head p{color:var(--sub);}

/* ---------- path cards ---------- */
.path-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.path-card{
  display:grid;grid-template-columns:190px minmax(0,1fr);gap:20px;
  padding:18px;background:#fff;
  border:1px solid var(--card-line);border-radius:var(--radius);
  box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.path-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#D6CBBA;}
.path-figure{position:relative;border-radius:10px;overflow:hidden;background:var(--primary-soft);aspect-ratio:4/3;}
.path-figure img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease);}
.path-card:hover .path-figure img{transform:scale(1.03);}
.path-num{
  position:absolute;left:8px;top:8px;
  display:inline-flex;align-items:center;justify-content:center;
  min-width:30px;height:26px;padding:0 8px;border-radius:6px;
  background:rgba(255,255,255,.94);color:var(--primary-dark);
  font-size:12px;font-weight:700;letter-spacing:.06em;
  font-variant-numeric:tabular-nums;
}
.path-body{display:flex;flex-direction:column;}
.path-body h3{margin-bottom:8px;}
.path-body p{font-size:14.5px;color:var(--sub);margin-bottom:14px;}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px;}
.tag{
  display:inline-block;padding:4px 10px;border-radius:6px;
  font-size:12px;letter-spacing:.05em;
  background:var(--primary-soft);color:var(--primary-dark);
  border:1px solid #D5E2F2;
}
.tag.tag-accent{background:var(--accent-soft);color:#B85A15;border-color:rgba(232,121,43,.24);}
.tag.tag-plain{background:#F4F6F9;color:var(--sub);border-color:var(--line);}
.path-body .text-link{margin-top:auto;align-self:flex-start;}

/* ---------- checklist ---------- */
.check-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 48px;}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:16px 0;border-bottom:1px dashed #DED5C4;
  font-size:15px;color:var(--sub);
}
.check-list li:last-child{border-bottom:0;}
.check-ico{
  flex:0 0 24px;width:24px;height:24px;margin-top:3px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:7px;background:rgba(46,139,114,.12);color:var(--trust);
  font-size:11px;
}
.check-list strong{display:block;color:var(--ink);font-weight:600;margin-bottom:2px;}

/* ---------- dark block ---------- */
.section-dark{background:#1B2430;color:#E7E3DA;border-top:1px solid #2A3644;border-bottom:1px solid #2A3644;}
.section-dark .kicker{color:var(--accent);}
.section-dark h2{color:#fff;}
.section-dark .section-head p{color:#B4BEC9;}
.trouble-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0 36px;}
.trouble-item{padding-top:22px;border-top:1px solid #33404F;}
.trouble-item .t-num{
  display:block;margin-bottom:12px;
  font-size:12px;font-weight:700;letter-spacing:.16em;color:var(--accent);
  font-variant-numeric:tabular-nums;
}
.trouble-item h3{font-size:17px;color:#fff;margin-bottom:10px;}
.trouble-item p{font-size:14.5px;color:#AEB9C5;margin:0;}

/* ---------- faq ---------- */
.faq-list{border-top:1px solid var(--card-line);}
.faq-item{border-bottom:1px solid var(--card-line);}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  width:100%;padding:22px 0;background:none;border:0;text-align:left;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;
  transition:color var(--ease);
}
.faq-q:hover{color:var(--primary);}
.faq-ico{
  flex:0 0 26px;width:26px;height:26px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:50%;border:1px solid var(--line-strong);color:var(--primary);
  font-size:11px;transition:transform var(--ease),background var(--ease),border-color var(--ease);
}
.faq-item.is-open .faq-ico{transform:rotate(45deg);background:var(--primary-soft);border-color:var(--primary);}
.faq-a{max-height:0;overflow:hidden;transition:max-height 220ms ease;}
.faq-item.is-open .faq-a{max-height:520px;}
.faq-a p{padding:0 40px 22px 0;font-size:15px;color:var(--sub);margin:0;}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;overflow:hidden;
  display:grid;grid-template-columns:1.5fr 1fr;gap:40px;align-items:center;
  padding:48px 48px;border-radius:var(--radius-lg);
  background:var(--primary-dark);color:#fff;
  box-shadow:var(--shadow-2);
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.08) 1px,transparent 1px);
  background-size:18px 18px;
}
.cta-band>*{position:relative;z-index:2;}
.cta-band h2{color:#fff;margin-bottom:14px;}
.cta-band p{color:#C6D6E8;font-size:15px;margin-bottom:24px;max-width:34em;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
.cta-side{
  padding-left:32px;border-left:1px solid rgba(255,255,255,.18);
}
.cta-side dl{margin:0;display:grid;gap:14px;}
.cta-side dt{font-size:12px;letter-spacing:.1em;color:#93AEC9;margin-bottom:2px;}
.cta-side dd{margin:0;font-size:15px;color:#fff;font-weight:500;}

/* ---------- footer ---------- */
.site-footer{background:#1B2430;color:#B9C4CF;padding:64px 0 0;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px;}
.footer-brand .logo{color:#fff;margin-bottom:16px;}
.footer-brand .logo-text em{color:#8FB6E0;}
.footer-brand p{color:#94A2AF;font-size:13.5px;line-height:1.8;margin-bottom:12px;}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer-col ul li{margin-bottom:10px;}
.footer-col a,.footer-col span{color:#9AA8B5;font-size:14px;}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 0 24px;border-top:1px solid #2A3644;
  font-size:13px;color:#8493A1;
}
.to-top{color:#9AA8B5;font-size:13px;}
.to-top:hover{color:#fff;}
.to-top i{font-size:11px;margin-left:4px;}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .path-grid{gap:20px;}
  .path-card{grid-template-columns:160px minmax(0,1fr);}
  .check-list{gap:0 32px;}
}
@media (max-width:1023px){
  .nav-links{display:none;}
  .icon-btn{display:inline-flex;}
  .header-actions .btn{display:none;}
  .header-inner{height:64px;gap:16px;}
  .logo-text{font-size:18px;}
  .cat-hero-inner{padding:48px 0 56px;}
  h1{font-size:30px;}
  .path-card{grid-template-columns:150px minmax(0,1fr);gap:16px;}
  .trouble-grid{grid-template-columns:1fr;gap:24px;}
  .trouble-item{padding-top:18px;}
  .cta-band{grid-template-columns:1fr;gap:28px;padding:40px 32px;}
  .cta-side{padding-left:0;padding-top:24px;border-left:0;border-top:1px solid rgba(255,255,255,.18);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:64px 0;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  h1{font-size:26px;}
  h2{font-size:22px;}
  .cat-hero::after{background:linear-gradient(180deg,rgba(251,248,242,.97) 0%,rgba(251,248,242,.9) 100%);}
  .cat-hero-bg{background-position:center top;}
  .cat-hero-inner{padding:36px 0 48px;}
  .cat-hero .lead{font-size:15.5px;}
  .hero-figure{order:-1;margin-bottom:24px;}
  .hero-checks{flex-direction:column;gap:10px;}
  .hero-checks span{border-right:0;margin-right:0;padding-right:0;}
  .hero-actions .btn{flex:1 1 auto;}
  .anchor-wrap{margin-top:-24px;}
  .anchor-bar{padding:14px 16px;gap:8px 18px;}
  .path-grid{grid-template-columns:1fr;gap:18px;}
  .path-card{grid-template-columns:1fr;}
  .path-figure{aspect-ratio:16/9;}
  .check-list{grid-template-columns:1fr;}
  .faq-q{padding:18px 0;font-size:15.5px;}
  .faq-a p{padding-right:8px;}
  .cta-band{padding:32px 22px;border-radius:14px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
  .section{padding:52px 0;}
  .section-sm{padding:40px 0;}
}
@media (max-width:480px){
  h1{font-size:24px;}
  .logo-text{font-size:16.5px;}
  .eyebrow{font-size:11px;}
  .btn{padding:12px 20px;font-size:14.5px;}
  .cta-actions .btn{width:100%;}
}

/* roulang page: category2 */
:root{
  --brand:#1F5AA6;
  --brand-dark:#164378;
  --brand-light:#E7EFF9;
  --alt:#F6F9FC;
  --accent:#E8792B;
  --accent-light:#FDF1E7;
  --accent-ink:#B4560F;
  --trust:#2E8B72;
  --ink:#16202C;
  --ink-2:#4E5D6E;
  --ink-3:#8794A5;
  --line:#E2E9F1;
  --line-strong:#CFDAE6;
  --white:#FFFFFF;
  --r-xs:6px;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:18px;
  --sh-1:0 1px 2px rgba(22,32,44,.04), 0 8px 24px -12px rgba(22,32,44,.12);
  --sh-2:0 2px 4px rgba(22,32,44,.05), 0 18px 40px -18px rgba(31,90,166,.22);
  --ease:180ms ease;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--white);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;}
a{color:var(--brand);text-decoration:none;transition:color var(--ease),border-color var(--ease),background-color var(--ease),transform var(--ease);}
a:hover{color:var(--brand-dark);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:600;line-height:1.3;letter-spacing:-.01em;color:var(--ink);}
h1{font-weight:700;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;
  cursor:pointer;text-decoration:none;
  appearance:none;-webkit-appearance:none;
  transition:background-color var(--ease),color var(--ease),border-color var(--ease),box-shadow var(--ease),transform var(--ease);
}
.btn i{font-size:13px;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px -14px rgba(31,90,166,.9);}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:none;box-shadow:none;}
.btn-ghost{background:#fff;border-color:var(--line-strong);color:var(--brand);}
.btn-ghost:hover{border-color:var(--brand);background:var(--brand-light);color:var(--brand-dark);}
.btn-light{background:#fff;color:var(--brand-dark);}
.btn-light:hover{background:var(--brand-light);color:var(--brand-dark);transform:translateY(-1px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:9px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.6;pointer-events:none;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:32px;height:72px;}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink);flex:0 0 auto;}
.logo:hover{color:var(--ink);}
.logo-mark{width:9px;height:9px;border-radius:2px;background:var(--brand);box-shadow:0 0 0 4px rgba(31,90,166,.12);}
.logo-text{font-size:19px;font-weight:700;letter-spacing:.01em;line-height:1;}
.logo-text em{font-style:normal;font-weight:400;color:var(--brand);margin-left:2px;}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:auto;}
.nav-links a{
  position:relative;font-size:14.5px;font-weight:500;color:var(--ink-2);
  padding:8px 0;line-height:1.2;
}
.nav-links a:hover{color:var(--ink);}
.nav-links a.active{color:var(--brand);font-weight:600;}
.nav-links a.active::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  border-radius:2px;background:var(--brand);
}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.icon-btn{
  width:44px;height:44px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--ink-2);background:#fff;
  transition:border-color var(--ease),color var(--ease),background-color var(--ease);
}
.icon-btn:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-light);}
.nav-toggle{display:none;}
.mobile-drawer{display:none;border-top:1px solid var(--line);background:#fff;}
.mobile-drawer.open{display:block;}
.mobile-drawer nav{display:block;}
.mobile-drawer nav a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:56px;padding:0 24px;font-size:18px;font-weight:500;color:var(--ink-2);
  border-bottom:1px solid var(--line);
}
.mobile-drawer nav a.active{color:var(--brand);font-weight:600;}
.mobile-drawer nav a i{font-size:12px;color:var(--line-strong);}
.drawer-cta{padding:20px 24px 24px;}

/* ---------- 面包屑 ---------- */
.breadcrumb{padding:22px 0 0;}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;font-size:13px;color:var(--ink-3);}
.breadcrumb li{display:inline-flex;align-items:center;}
.breadcrumb li:not(:first-child)::before{content:"/";margin:0 8px;color:var(--line-strong);}
.breadcrumb a{color:var(--ink-3);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .current{color:var(--ink);}

/* ---------- 首屏 ---------- */
.hero-wrap{padding:16px 0 0;}
.page-hero{
  position:relative;overflow:hidden;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:#E7EFF9 url("/assets/images/backpic/back-2.webp") center right / cover no-repeat;
  box-shadow:var(--sh-1);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,#fff 0%,rgba(255,255,255,.94) 46%,rgba(255,255,255,.38) 100%);
}
.page-hero-inner{position:relative;max-width:660px;padding:62px 52px;}
.badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 13px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.08em;
  background:var(--accent-light);color:var(--accent-ink);
  border:1px solid #F4D6BE;
}
.badge i{font-size:11px;}
.page-hero h1{font-size:36px;line-height:1.26;margin-top:18px;max-width:18em;}
.page-hero .hero-sub{margin-top:16px;font-size:16px;line-height:1.8;color:var(--ink-2);max-width:32em;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 28px;margin-top:32px;padding-top:24px;border-top:1px solid rgba(207,218,230,.7);}
.hero-points li{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:var(--ink-2);}
.hero-points i{color:var(--trust);font-size:12px;}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;}
.section--alt{
  background-color:var(--alt);
  background-image:radial-gradient(rgba(226,233,241,.75) 1px, transparent 1px);
  background-size:22px 22px;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.section-head{max-width:760px;margin-bottom:44px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;font-weight:600;letter-spacing:.16em;color:var(--brand);
  text-transform:uppercase;
}
.eyebrow::before{content:"";width:24px;height:1px;background:var(--brand);display:inline-block;}
.section-head h2{font-size:27px;margin-top:14px;line-height:1.34;}
.section-head .lead{margin-top:14px;font-size:15.5px;color:var(--ink-2);line-height:1.85;max-width:40em;}

/* ---------- 套餐清单 ---------- */
.plans-layout{display:flex;flex-wrap:wrap;align-items:flex-start;}
.plans-layout > .plan-main{flex:0 0 66.6667%;max-width:66.6667%;padding-right:32px;min-width:0;}
.plans-layout > .plan-aside{flex:0 0 33.3333%;max-width:33.3333%;min-width:0;}
.plan-list{position:relative;}
.plan-list::before{
  content:"";position:absolute;left:27px;top:18px;bottom:18px;width:1px;
  background:linear-gradient(180deg,var(--line-strong) 0%,rgba(207,218,230,.35) 100%);
}
.plan-item{position:relative;display:flex;gap:24px;padding-bottom:28px;}
.plan-item:last-child{padding-bottom:0;}
.plan-num{
  position:relative;z-index:1;flex:0 0 56px;width:56px;height:56px;
  display:grid;place-items:center;
  border-radius:50%;background:#fff;border:1px solid var(--line-strong);
  color:var(--brand);font-weight:700;font-size:15px;
  font-variant-numeric:tabular-nums;
  box-shadow:0 0 0 6px #fff;
}
.plan-card{
  flex:1 1 auto;min-width:0;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px 28px;box-shadow:var(--sh-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.plan-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--line-strong);}
.plan-card h3{font-size:19px;line-height:1.4;}
.plan-card h3 span{color:var(--ink-3);font-weight:400;font-size:14px;margin-left:8px;}
.plan-card p{margin-top:10px;font-size:15px;color:var(--ink-2);line-height:1.85;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.tag{
  display:inline-flex;align-items:center;
  padding:4px 10px;border-radius:var(--r-xs);
  font-size:12px;letter-spacing:.04em;
  background:var(--brand-light);color:var(--brand-dark);
  border:1px solid rgba(31,90,166,.1);
}
.tag--accent{background:var(--accent-light);color:var(--accent-ink);border-color:#F4D6BE;}
.tag--trust{background:#EAF5F0;color:#1F6B57;border-color:#CBE7DE;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:18px;font-size:14px;font-weight:600;color:var(--brand);
  border-bottom:1.5px solid currentColor;padding-bottom:2px;
}
.text-link i{font-size:11px;transition:transform var(--ease);}
.text-link:hover{color:var(--accent);}
.text-link:hover i{transform:translateX(3px);}

/* ---------- 侧边咨询卡 ---------- */
.plan-aside{position:sticky;top:96px;}
.consult-card{
  background:#fff;border:1px solid var(--line);border-top:3px solid var(--brand);
  border-radius:var(--r-lg);padding:28px 24px 26px;box-shadow:var(--sh-1);
}
.consult-card h3{font-size:18px;line-height:1.4;}
.consult-card .card-sub{margin-top:8px;font-size:13.5px;color:var(--ink-3);}
.consult-points{margin:18px 0 22px;}
.consult-points li{
  display:flex;gap:10px;align-items:flex-start;
  padding:11px 0;border-top:1px dashed var(--line);
  font-size:13.5px;color:var(--ink-2);line-height:1.7;
}
.consult-points li:first-child{border-top:0;padding-top:0;}
.consult-points i{color:var(--trust);font-size:12px;margin-top:6px;flex:0 0 auto;}
.mini-form .field{margin-bottom:14px;}
.mini-form label{display:block;font-size:13px;color:var(--ink-2);margin-bottom:7px;}
.mini-form label .req{color:var(--brand);margin-left:2px;}
.mini-form input[type="text"],
.mini-form input[type="tel"],
.mini-form select,
.mini-form textarea{
  width:100%;margin:0;height:48px;padding:0 14px;
  border:1px solid var(--line-strong);border-radius:var(--r-sm);
  background:#fff;color:var(--ink);font-size:15px;line-height:1.2;
  box-shadow:none;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.mini-form textarea{height:auto;padding:12px 14px;line-height:1.7;resize:vertical;}
.mini-form select{
  appearance:none;-webkit-appearance:none;
  background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%238794A5' d='M1.4 0 6 4.6 10.6 0 12 1.4 6 7.4 0 1.4z'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;
  padding-right:38px;
}
.mini-form input:focus,
.mini-form select:focus,
.mini-form textarea:focus{
  outline:none;border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(31,90,166,.13);
}
.form-note{margin-top:12px;font-size:12px;color:var(--ink-3);line-height:1.7;}
.form-feedback{
  display:none;margin-top:14px;padding:10px 13px;border-radius:8px;
  font-size:13px;line-height:1.7;
  background:#EAF5F0;color:#1F6B57;border:1px solid #CBE7DE;
}
.form-feedback.show{display:block;}

/* ---------- 图文说明 ---------- */
.split{display:flex;flex-wrap:wrap;align-items:center;gap:56px;}
.split-media{flex:0 0 44%;max-width:44%;}
.split-body{flex:1 1 0;min-width:0;}
.figure{
  position:relative;border-radius:var(--r-md);overflow:hidden;
  background:var(--brand-light);border:1px solid var(--line);box-shadow:var(--sh-1);
}
.figure img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform 220ms ease;}
.figure:hover img{transform:scale(1.03);}
.figure figcaption{font-size:13px;color:var(--ink-3);padding:12px 16px;background:#fff;border-top:1px solid var(--line);}
.check-list{margin-top:26px;}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:14px 0;border-top:1px solid var(--line);
  font-size:15px;color:var(--ink-2);line-height:1.8;
}
.check-list li:first-child{border-top:0;padding-top:0;}
.check-list i{color:var(--brand);font-size:13px;margin-top:7px;flex:0 0 auto;}

/* ---------- 优惠阶梯 ---------- */
.ladder{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.step{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);padding:26px 22px 24px;box-shadow:var(--sh-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.step:hover{box-shadow:var(--sh-2);border-color:var(--line-strong);}
.step--current{
  border-top:3px solid var(--accent);
  transform:translateY(-4px);
  box-shadow:var(--sh-2);
}
.step--current:hover{transform:translateY(-5px);}
.step-flag{
  position:absolute;top:-11px;right:18px;
  padding:3px 10px;border-radius:999px;
  font-size:11.5px;font-weight:600;letter-spacing:.08em;
  background:var(--accent);color:#fff;box-shadow:0 6px 14px -8px rgba(232,121,43,.9);
}
.step-num{font-size:12px;letter-spacing:.18em;color:var(--ink-3);font-variant-numeric:tabular-nums;}
.step h4{font-size:17px;margin-top:8px;}
.step-threshold{
  margin-top:12px;font-size:22px;font-weight:700;color:var(--accent);
  font-variant-numeric:tabular-nums;line-height:1.3;
}
.step-threshold small{display:block;font-size:12.5px;font-weight:400;color:var(--ink-3);margin-top:4px;letter-spacing:0;}
.step ul{margin-top:16px;padding-top:14px;border-top:1px dashed var(--line);}
.step ul li{position:relative;padding-left:15px;font-size:13.5px;color:var(--ink-2);line-height:1.75;}
.step ul li + li{margin-top:7px;}
.step ul li::before{
  content:"";position:absolute;left:0;top:.72em;width:5px;height:5px;
  border-radius:50%;background:var(--trust);
}
.step-link{display:inline-flex;align-items:center;gap:6px;margin-top:18px;font-size:13.5px;font-weight:600;color:var(--brand);}
.step-link:hover{color:var(--accent);}

/* ---------- 数据细线栏 ---------- */
.facts{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-top:1px solid var(--line-strong);border-bottom:1px solid var(--line-strong);}
.fact-item{padding:30px 26px;border-left:1px solid var(--line);}
.fact-item:first-child{border-left:0;padding-left:0;}
.fact-item strong{display:block;font-size:15px;font-weight:600;color:var(--ink);letter-spacing:.01em;}
.fact-item span{display:block;margin-top:8px;font-size:14px;color:var(--ink-2);line-height:1.8;}
.fact-item em{font-style:normal;color:var(--accent);font-weight:600;font-variant-numeric:tabular-nums;}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line-strong);max-width:920px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;cursor:pointer;list-style:none;
  font-size:16px;font-weight:600;color:var(--ink);
  transition:color var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand);}
.faq-icon{
  flex:0 0 auto;width:30px;height:30px;border-radius:50%;
  display:grid;place-items:center;
  border:1px solid var(--line-strong);color:var(--brand);font-size:12px;
  transition:transform var(--ease),border-color var(--ease),background-color var(--ease);
}
.faq-item[open] .faq-icon{transform:rotate(45deg);border-color:var(--brand);background:var(--brand-light);}
.faq-a{padding:0 0 24px;font-size:15px;color:var(--ink-2);line-height:1.9;max-width:56em;}

/* ---------- CTA 条 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--r-lg);
  background:var(--brand-dark) url("/assets/images/backpic/back-3.webp") center right / cover no-repeat;
  box-shadow:var(--sh-2);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(22,67,120,.96) 0%,rgba(22,67,120,.9) 55%,rgba(22,67,120,.62) 100%);
}
.cta-inner{
  position:relative;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:32px;padding:52px 56px;
}
.cta-inner h2{color:#fff;font-size:26px;line-height:1.4;max-width:20em;}
.cta-inner p{color:rgba(255,255,255,.78);font-size:14.5px;margin-top:12px;max-width:34em;line-height:1.8;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.cta-actions .btn-ghost{background:transparent;border-color:rgba(255,255,255,.5);color:#fff;}
.cta-actions .btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--alt);border-top:1px solid var(--line);margin-top:96px;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:48px;
  padding:64px 0 48px;
}
.footer-brand .logo{margin-bottom:18px;}
.footer-brand p{font-size:14px;color:var(--ink-2);line-height:1.85;max-width:30em;}
.footer-brand p + p{margin-top:12px;color:var(--ink-3);font-size:13px;}
.footer-col h4{font-size:14px;font-weight:600;color:var(--ink);letter-spacing:.04em;margin-bottom:18px;}
.footer-col ul li{font-size:14px;color:var(--ink-2);line-height:1.9;}
.footer-col ul li + li{margin-top:8px;}
.footer-col ul li a{color:var(--ink-2);}
.footer-col ul li a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:4px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 0 28px;border-top:1px solid var(--line);
  font-size:13px;color:var(--ink-3);
}
.to-top{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-2);}
.to-top:hover{color:var(--brand);}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .page-hero-inner{padding:52px 40px;}
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr;gap:36px;}
  .footer-col:last-child{grid-column:1 / -1;}
}
@media (max-width:1023px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{height:72px;gap:16px;}
  .plans-layout > .plan-main{flex:0 0 100%;max-width:100%;padding-right:0;}
  .plans-layout > .plan-aside{flex:0 0 100%;max-width:100%;position:static;margin-top:32px;}
  .ladder{grid-template-columns:repeat(2,minmax(0,1fr));}
  .facts{grid-template-columns:repeat(2,minmax(0,1fr));}
  .fact-item:nth-child(odd){border-left:0;padding-left:0;}
  .fact-item:nth-child(n+3){border-top:1px solid var(--line);}
  .split{gap:36px;}
  .split-media{flex:0 0 100%;max-width:100%;}
  .cta-inner{padding:40px 36px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .header-inner{height:60px;}
  .header-actions .header-cta{display:none;}
  .logo-text{font-size:17px;}
  .page-hero-inner{padding:36px 22px;max-width:100%;}
  .page-hero h1{font-size:26px;line-height:1.32;}
  .page-hero .hero-sub{font-size:15px;}
  .hero-actions{gap:12px;}
  .hero-actions .btn{width:100%;}
  .hero-points{gap:10px 18px;}
  .section-head h2{font-size:22px;}
  .plan-item{gap:16px;padding-bottom:22px;}
  .plan-num{flex:0 0 44px;width:44px;height:44px;font-size:13px;box-shadow:0 0 0 4px #fff;}
  .plan-list::before{left:21px;}
  .plan-card{padding:20px 20px;}
  .plan-card h3{font-size:17px;}
  .ladder{grid-template-columns:1fr;gap:16px;}
  .step--current{transform:none;}
  .facts{grid-template-columns:1fr;}
  .fact-item{border-left:0;padding:22px 0;}
  .fact-item + .fact-item{border-top:1px solid var(--line);}
  .cta-inner{padding:32px 24px;gap:24px;}
  .cta-inner h2{font-size:21px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px 24px;padding:44px 0 32px;}
  .footer-brand{grid-column:1 / -1;}
  .footer-col:last-child{grid-column:1 / -1;}
  .site-footer{margin-top:56px;}
  .faq-item summary{font-size:15px;padding:18px 0;gap:14px;}
}
@media (max-width:480px){
  .page-hero h1{font-size:24px;}
  .section{padding:48px 0;}
  .footer-grid{grid-template-columns:1fr;}
  .breadcrumb{font-size:12px;}
  .btn{height:46px;padding:0 20px;font-size:14.5px;}
}

/* roulang page: category3 */
:root{
  --primary:#1F5AA6;
  --primary-dark:#164378;
  --primary-soft:#E7EFF9;
  --accent:#E8792B;
  --accent-soft:#FDF0E6;
  --trust:#2E8B72;
  --ink:#16202C;
  --muted:#4E5D6E;
  --faint:#8794A5;
  --line:#E2E9F1;
  --line-strong:#CFDAE6;
  --bg:#FFFFFF;
  --bg-alt:#F6F9FC;
  --radius-sm:10px;
  --radius:14px;
  --radius-lg:18px;
  --radius-badge:6px;
  --shadow-1:0 1px 2px rgba(22,32,44,.04),0 8px 24px -12px rgba(22,32,44,.12);
  --shadow-2:0 2px 4px rgba(22,32,44,.05),0 18px 40px -18px rgba(31,90,166,.22);
  --ease:cubic-bezier(.4,0,.2,1);
  --sp-1:8px; --sp-2:16px; --sp-3:24px; --sp-4:32px; --sp-5:48px; --sp-6:64px; --sp-7:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--primary);text-decoration:none;transition:color .18s var(--ease);}
a:hover{color:var(--primary-dark);}
p{margin:0 0 var(--sp-2);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:-.01em;line-height:1.32;color:var(--ink);}
h1{font-size:38px;font-weight:700;line-height:1.25;}
h2{font-size:26px;}
h3{font-size:19px;}
h4{font-size:16px;}
button{font-family:inherit;font-size:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;font-size:16px;color:var(--ink);}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%;}
.section{padding:96px 0;}
.section-alt{background:var(--bg-alt);}
.section-tight{padding:64px 0;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--radius-sm);
  font-size:15.5px;font-weight:600;line-height:1.2;
  border:1px solid transparent;background:none;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
  min-height:44px;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px -12px rgba(31,90,166,.6);}
.btn-primary:hover,.btn-primary:focus{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px -8px rgba(31,90,166,.5);}
.btn-ghost{background:#fff;color:var(--primary);border-color:var(--line-strong);}
.btn-ghost:hover,.btn-ghost:focus{background:var(--primary-soft);border-color:var(--primary);color:var(--primary-dark);}
.btn-accent{background:var(--accent);color:#fff;}
.btn-accent:hover,.btn-accent:focus{background:#d1671f;color:#fff;transform:translateY(-1px);}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled]{opacity:.6;cursor:not-allowed;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--primary);border-bottom:1.5px solid currentColor;padding-bottom:2px;transition:color .18s var(--ease),transform .18s var(--ease);}
.link-arrow:hover{color:var(--accent);transform:translateX(2px);}

/* ============ 标签 / 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--radius-badge);
  font-size:12px;font-weight:600;letter-spacing:.08em;
  background:var(--primary-soft);color:var(--primary-dark);
}
.badge-accent{background:var(--accent-soft);color:#a8521a;}
.badge-trust{background:#E4F1EC;color:#1f6b57;}
.stamp{
  display:inline-block;position:relative;
  padding:6px 16px;margin-bottom:var(--sp-3);
  font-size:12px;letter-spacing:.2em;font-weight:600;color:var(--primary-dark);
  background:#fff;border:1px solid var(--line-strong);
  border-radius:4px;transform:rotate(-1.6deg);
  box-shadow:2px 2px 0 rgba(31,90,166,.08);
}
.stamp::before,.stamp::after{content:"·";margin:0 6px;color:var(--accent);font-weight:700;}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:var(--sp-4);height:72px;}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:17px;letter-spacing:.01em;color:var(--ink);}
.logo-mark{width:8px;height:8px;border-radius:2px;background:var(--primary);box-shadow:0 0 0 3px rgba(31,90,166,.12);flex:none;}
.logo-text{font-weight:700;color:var(--ink);}
.logo-text em{font-style:normal;font-weight:400;color:var(--primary);}
.logo:hover .logo-text{color:var(--primary-dark);}
.nav-links{display:flex;align-items:center;gap:28px;}
.nav-links a{
  position:relative;font-size:14.5px;font-weight:500;color:var(--muted);
  padding:6px 0;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;
  transition:transform .2s var(--ease);
}
.nav-links a:hover{color:var(--ink);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:var(--primary-dark);font-weight:600;}
.nav-links a.active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;}
.icon-btn{
  width:44px;height:44px;display:none;align-items:center;justify-content:center;
  border:1px solid var(--line-strong);border-radius:var(--radius-sm);
  background:#fff;color:var(--primary);transition:background-color .18s var(--ease),border-color .18s var(--ease);
}
.icon-btn:hover{background:var(--primary-soft);border-color:var(--primary);}
.mobile-drawer{
  display:none;border-top:1px solid var(--line);background:#fff;
  padding:8px 0 20px;
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer a{
  display:block;padding:0 24px;line-height:56px;font-size:17px;color:var(--muted);
  border-bottom:1px solid var(--line);
}
.mobile-drawer a.active{color:var(--primary-dark);font-weight:600;}
.mobile-drawer .drawer-cta{padding:16px 24px 0;border-bottom:none;}
.mobile-drawer .drawer-cta .btn{width:100%;}

/* ============ 面包屑 ============ */
.breadcrumbs{
  padding:20px 0 0;font-size:13px;color:var(--faint);
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
}
.breadcrumbs a{color:var(--faint);}
.breadcrumbs a:hover{color:var(--primary);}
.breadcrumbs span.sep{color:var(--line-strong);}
.breadcrumbs .current{color:var(--ink);font-weight:500;}

/* ============ 页面主视觉 ============ */
.page-hero{
  position:relative;overflow:hidden;
  padding:56px 0 76px;
  background:var(--bg-alt);
  border-bottom:1px solid var(--line);
}
.page-hero-bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-3.webp");
  background-size:cover;background-position:center right;background-repeat:no-repeat;
  opacity:.9;
}
.page-hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,#F6F9FC 0%,rgba(246,249,252,.94) 46%,rgba(246,249,252,.42) 100%);
}
.page-hero .container{position:relative;z-index:2;}
.page-hero h1{margin-bottom:var(--sp-2);max-width:15em;}
.page-hero .lead{font-size:16.5px;color:var(--muted);max-width:34em;margin-bottom:var(--sp-3);}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:var(--sp-4);}
.hero-facts{
  display:flex;flex-wrap:wrap;gap:0 28px;
  border-top:1px solid var(--line-strong);padding-top:var(--sp-2);max-width:38em;
}
.hero-facts li{
  position:relative;font-size:13.5px;color:var(--muted);padding-left:16px;line-height:2;
}
.hero-facts li::before{
  content:"";position:absolute;left:0;top:14px;width:6px;height:6px;border-radius:50%;
  background:var(--trust);
}
.hero-figure{
  margin:0;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line-strong);
  box-shadow:0 2px 4px rgba(22,32,44,.05),0 24px 48px -24px rgba(31,90,166,.3);
  background:var(--primary-soft);
}
.hero-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;}

/* ============ 板块标题 ============ */
.section-head{max-width:44em;margin-bottom:var(--sp-5);}
.section-head .kicker{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.18em;font-weight:600;color:var(--primary);
  text-transform:uppercase;margin-bottom:12px;
}
.section-head .kicker::before{
  content:"";width:7px;height:7px;background:var(--accent);transform:rotate(45deg);display:inline-block;
}
.section-head h2{margin-bottom:12px;}
.section-head p{color:var(--muted);font-size:15.5px;margin:0;}

/* ============ 图文交替 ============ */
.zig-row{display:flex;align-items:center;gap:var(--sp-5);margin-bottom:var(--sp-6);}
.zig-row:last-child{margin-bottom:0;}
.zig-row.reverse{flex-direction:row-reverse;}
.zig-media{
  flex:0 0 46%;margin:0;position:relative;
  border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line-strong);
  background:var(--primary-soft);
  box-shadow:var(--shadow-1);
}
.zig-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .22s var(--ease);}
.zig-row:hover .zig-media img{transform:scale(1.02);}
.zig-media::after{
  content:"";position:absolute;inset:10px;border:1px dashed rgba(255,255,255,.55);
  border-radius:10px;pointer-events:none;
}
.zig-body{flex:1 1 auto;min-width:0;}
.zig-body .step-no{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:50%;
  border:1px solid var(--line-strong);background:#fff;
  color:var(--primary);font-weight:700;font-size:15px;margin-bottom:14px;
  box-shadow:2px 2px 0 rgba(31,90,166,.08);
}
.zig-body h3{margin-bottom:12px;font-size:21px;}
.zig-body p{color:var(--muted);font-size:15.5px;}
.check-list li{
  position:relative;padding:8px 0 8px 28px;color:var(--muted);font-size:15px;
  border-bottom:1px dashed var(--line);
}
.check-list li:last-child{border-bottom:none;}
.check-list li::before{
  content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;left:0;top:9px;font-size:12px;color:var(--trust);
}

/* ============ 对比表 ============ */
.compare-wrap{position:relative;}
.table-scroll{
  overflow-x:auto;border:1px solid var(--line-strong);border-radius:var(--radius);
  background:#fff;box-shadow:var(--shadow-1);
}
table.cmp{width:100%;border-collapse:collapse;min-width:760px;}
table.cmp th,table.cmp td{
  padding:16px 18px;text-align:left;font-size:14.5px;
  border-bottom:1px solid var(--line);vertical-align:top;
}
table.cmp thead th{
  background:var(--primary-soft);color:var(--primary-dark);
  font-weight:600;font-size:14px;letter-spacing:.02em;
  border-bottom:1px solid var(--line-strong);white-space:nowrap;
}
table.cmp thead th.col-pick{background:var(--primary);color:#fff;}
table.cmp tbody th{
  font-weight:600;color:var(--ink);background:#fff;width:150px;white-space:nowrap;
  border-right:1px solid var(--line);
}
table.cmp tbody tr:nth-child(even) td{background:var(--bg-alt);}
table.cmp tbody tr:nth-child(even) th{background:#FAFCFE;}
table.cmp tbody tr:last-child th,table.cmp tbody tr:last-child td{border-bottom:none;}
table.cmp td{color:var(--muted);}
table.cmp td.pick{background:#F1F6FD;color:var(--ink);}
table.cmp tbody tr:nth-child(even) td.pick{background:#E9F1FA;}
.cmp-note{
  display:flex;flex-wrap:wrap;gap:10px 24px;margin-top:var(--sp-3);
  font-size:13px;color:var(--faint);
}
.cmp-note span{display:inline-flex;align-items:center;gap:6px;}
.cmp-note i{color:var(--trust);font-size:11px;}
.scroll-hint{display:none;font-size:12.5px;color:var(--faint);margin-top:10px;text-align:right;}

/* ============ FAQ ============ */
.faq-list{border-top:1px solid var(--line-strong);}
.faq-item{border-bottom:1px solid var(--line-strong);}
.faq-q{
  width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:18px;
  padding:22px 4px;background:none;border:none;text-align:left;
  font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;
  transition:color .18s var(--ease);
}
.faq-q:hover{color:var(--primary);}
.faq-q .icon{
  flex:none;width:22px;height:22px;margin-top:2px;position:relative;
  transition:transform .2s var(--ease);color:var(--primary);
}
.faq-q .icon::before,.faq-q .icon::after{
  content:"";position:absolute;background:currentColor;border-radius:2px;
}
.faq-q .icon::before{left:0;right:0;top:10px;height:2px;}
.faq-q .icon::after{top:0;bottom:0;left:10px;width:2px;transition:opacity .2s var(--ease);}
.faq-item.is-open .faq-q .icon{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s var(--ease);}
.faq-a-inner{padding:0 4px 24px;font-size:15px;color:var(--muted);max-width:56em;}
.faq-a-inner p:last-child{margin-bottom:0;}
.faq-item.is-open .faq-a{max-height:340px;}

/* ============ 行动区 ============ */
.cta-band{
  background:var(--primary-dark);
  color:#fff;position:relative;overflow:hidden;
  padding:0;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;opacity:.16;
}
.cta-band-inner{
  position:relative;z-index:2;padding:72px 0;
  display:flex;align-items:center;justify-content:space-between;gap:var(--sp-5);flex-wrap:wrap;
}
.cta-band h2{color:#fff;margin-bottom:10px;font-size:26px;}
.cta-band p{color:rgba(255,255,255,.82);font-size:15px;margin-bottom:0;max-width:38em;}
.cta-form{display:flex;gap:12px;flex-wrap:wrap;align-items:center;}
.cta-form input[type="tel"]{
  width:230px;height:48px;padding:0 16px;border-radius:var(--radius-sm);
  border:1px solid rgba(255,255,255,.35);background:rgba(255,255,255,.1);
  color:#fff;
}
.cta-form input[type="tel"]::placeholder{color:rgba(255,255,255,.6);}
.cta-form input[type="tel"]:focus{
  outline:none;border-color:#fff;background:rgba(255,255,255,.16);
  box-shadow:0 0 0 3px rgba(255,255,255,.16);
}
.cta-form .btn-primary{background:#fff;color:var(--primary-dark);}
.cta-form .btn-primary:hover{background:var(--accent);color:#fff;}
.cta-tip{
  position:relative;z-index:2;padding-bottom:56px;margin-top:-16px;
  font-size:13px;color:rgba(255,255,255,.62);
}

/* ============ 页脚 ============ */
.site-footer{background:#fff;border-top:1px solid var(--line);padding-top:72px;}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:var(--sp-5);
  padding-bottom:var(--sp-6);
}
.footer-brand .logo{margin-bottom:var(--sp-2);}
.footer-brand p{font-size:14px;color:var(--muted);max-width:26em;margin-bottom:12px;}
.footer-col h4{font-size:14px;letter-spacing:.06em;color:var(--ink);margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a,.footer-col ul li span{font-size:14px;color:var(--muted);line-height:1.7;}
.footer-col ul li a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:4px;}
.footer-bottom{
  border-top:1px solid var(--line);padding:22px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--faint);
}
.to-top{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);}
.to-top:hover{color:var(--primary);}

/* ============ 响应式 ============ */
@media screen and (max-width:1199px){
  .container{padding:0 22px;}
  .nav-links{gap:20px;}
  h1{font-size:32px;}
}
@media screen and (max-width:1023px){
  .nav-links{display:none;}
  .icon-btn{display:inline-flex;}
  .section{padding:72px 0;}
  .page-hero{padding:40px 0 64px;}
  .page-hero h1{font-size:30px;}
  .zig-row,.zig-row.reverse{flex-direction:column;gap:var(--sp-3);}
  .zig-media{flex:0 0 auto;width:100%;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:var(--sp-4);}
  .header-actions .btn{display:none;}
  .cta-band-inner{padding:56px 0;}
  .cta-form input[type="tel"]{width:100%;}
  .cta-form{width:100%;}
  .cta-form .btn{width:100%;}
}
@media screen and (max-width:767px){
  .section{padding:56px 0;}
  h1{font-size:27px;}
  .page-hero h1{font-size:26px;}
  h2{font-size:22px;}
  .page-hero .lead{font-size:15px;}
  .hero-actions{gap:10px;}
  .hero-actions .btn{width:100%;}
  .hero-facts{flex-direction:column;gap:0;padding-top:12px;}
  .hero-facts li{padding-left:16px;}
  .scroll-hint{display:block;}
  .faq-q{font-size:15.5px;padding:18px 2px;}
  .footer-grid{grid-template-columns:1fr;gap:var(--sp-3);}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media screen and (max-width:480px){
  .container{padding:0 18px;}
  .section{padding:48px 0;}
  .page-hero{padding:32px 0 48px;}
  .header-inner{height:60px;}
  .logo{font-size:15.5px;}
  .badge{font-size:11px;padding:4px 10px;}
  .cta-band h2{font-size:21px;}
  .stamp{font-size:11px;padding:5px 12px;}
}

/* roulang page: category4 */
:root{
  --primary:#1F5AA6;
  --primary-dark:#164378;
  --primary-light:#E7EFF9;
  --alt:#F6F9FC;
  --accent:#E8792B;
  --teal:#2E8B72;
  --ink:#16202C;
  --ink-2:#4E5D6E;
  --ink-3:#8794A5;
  --line:#E2E9F1;
  --line-strong:#CFDAE6;
  --white:#FFFFFF;
  --radius:14px;
  --radius-lg:18px;
  --radius-sm:10px;
  --shadow-1:0 1px 2px rgba(22,32,44,.04), 0 8px 24px -12px rgba(22,32,44,.12);
  --shadow-2:0 2px 4px rgba(22,32,44,.05), 0 18px 40px -18px rgba(31,90,166,.22);
  --ease:180ms ease;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  padding:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--white);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-sm);}
a{color:var(--primary);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--primary-dark);}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:2px;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
button{font-family:inherit;}

/* ---------- 布局容器与栅格 ---------- */
.container{
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.grid-x{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:24px;
  margin-left:0 !important;
  margin-right:0 !important;
}
.grid-x > .cell{
  width:auto !important;
  max-width:none !important;
  flex:none !important;
  min-width:0;
  padding:0 !important;
  float:none !important;
}
.cell-12{grid-column:span 12;}
.cell-8{grid-column:span 8;}
.cell-6{grid-column:span 6;}
.cell-4{grid-column:span 4;}
.cell-3{grid-column:span 3;}

.section{padding:88px 0;}
.section-alt{background:var(--alt);}
.section-head{max-width:720px;margin-bottom:40px;}
.section-head h2{
  font-size:26px;
  font-weight:600;
  line-height:1.35;
  letter-spacing:-0.01em;
  color:var(--ink);
}
.section-head p{
  margin-top:12px;
  font-size:15.5px;
  color:var(--ink-2);
  line-height:1.85;
}
.eyebrow{
  display:inline-block;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--primary);
  background:var(--primary-light);
  border-radius:6px;
  padding:4px 10px;
  margin-bottom:14px;
  font-weight:600;
}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:72px;
  gap:24px;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.logo-mark{
  width:10px;
  height:10px;
  border-radius:3px;
  background:var(--primary);
  display:inline-block;
}
.logo-text{
  font-size:19px;
  font-weight:700;
  color:var(--ink);
  letter-spacing:-0.01em;
  line-height:1.2;
}
.logo-text em{
  font-style:normal;
  font-weight:400;
  color:var(--primary);
}
.nav-links{
  display:flex;
  align-items:center;
  gap:30px;
  flex:1;
  justify-content:center;
}
.nav-links a{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:44px;
  font-size:14.5px;
  font-weight:500;
  color:var(--ink-2);
  letter-spacing:0;
  transition:color var(--ease);
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;
  bottom:6px;
  height:2px;
  width:0;
  background:var(--primary);
  border-radius:2px;
  transition:width var(--ease);
}
.nav-links a:hover{color:var(--ink);}
.nav-links a:hover::after{width:100%;}
.nav-links a.active{color:var(--ink);font-weight:600;}
.nav-links a.active::after{width:100%;}
.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.nav-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:11px 22px;
  min-height:44px;
  border-radius:999px;
  background:var(--primary);
  color:#fff !important;
  font-size:14px;
  font-weight:600;
  transition:background var(--ease),transform var(--ease),box-shadow var(--ease);
}
.nav-cta:hover{
  background:var(--primary-dark);
  transform:translateY(-1px);
  box-shadow:var(--shadow-2);
  color:#fff !important;
}
.nav-cta:active{transform:none;box-shadow:none;}
.nav-icon{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:44px;
  height:44px;
  border-radius:50%;
  border:1px solid var(--line-strong);
  color:var(--ink-2);
  background:#fff;
  transition:border-color var(--ease),color var(--ease),background var(--ease);
}
.nav-icon:hover{
  border-color:var(--primary);
  color:var(--primary);
  background:var(--primary-light);
}
.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:44px;
  height:44px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line-strong);
  background:#fff;
  color:var(--ink);
  cursor:pointer;
  font-size:16px;
}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(22,32,44,.36);
  opacity:0;
  visibility:hidden;
  transition:opacity var(--ease),visibility var(--ease);
  z-index:70;
}
.drawer-mask.open{opacity:1;visibility:visible;}
.mobile-drawer{
  position:fixed;
  top:0;
  right:0;
  width:min(340px,86vw);
  height:100%;
  background:#fff;
  z-index:71;
  transform:translateX(100%);
  transition:transform 220ms ease;
  display:flex;
  flex-direction:column;
  padding:18px 22px 28px;
  box-shadow:-20px 0 40px -24px rgba(22,32,44,.28);
}
.mobile-drawer.open{transform:translateX(0);}
.drawer-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:44px;
  margin-bottom:10px;
}
.drawer-close{
  width:44px;
  height:44px;
  border:1px solid var(--line);
  background:#fff;
  border-radius:var(--radius-sm);
  color:var(--ink-2);
  font-size:16px;
  cursor:pointer;
}
.drawer-links{flex:1;margin-top:8px;}
.drawer-links a{
  display:flex;
  align-items:center;
  height:56px;
  font-size:18px;
  font-weight:500;
  color:var(--ink-2);
  border-bottom:1px solid var(--line);
}
.drawer-links a.active{color:var(--primary);font-weight:600;}
.drawer-cta{
  display:flex;
  align-items:center;
  justify-content:center;
  width:100%;
  min-height:48px;
  border-radius:var(--radius-sm);
  background:var(--primary);
  color:#fff !important;
  font-weight:600;
  font-size:15px;
  margin-top:22px;
}
.drawer-cta:hover{background:var(--primary-dark);color:#fff !important;}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  padding:18px 0 0;
  font-size:13px;
  color:var(--ink-3);
}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.breadcrumb li{display:flex;align-items:center;gap:8px;}
.breadcrumb li + li::before{
  content:"/";
  color:var(--line-strong);
  font-size:12px;
}
.breadcrumb a{color:var(--ink-3);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .current{color:var(--ink);}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:56px 0 64px;
  background-image:
    linear-gradient(90deg,#FFFFFF 0%,rgba(255,255,255,.92) 45%,rgba(255,255,255,.35) 100%),
    url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center right;
  background-repeat:no-repeat;
  border-bottom:1px solid var(--line);
}
.hero-inner{max-width:660px;}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:999px;
  background:rgba(232,121,43,.1);
  color:var(--accent);
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.04em;
  margin-bottom:20px;
}
.hero h1{
  font-size:36px;
  font-weight:700;
  line-height:1.28;
  letter-spacing:-0.01em;
  color:var(--ink);
}
.hero-sub{
  margin-top:18px;
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink-2);
  max-width:600px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:30px;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:14px 28px;
  border-radius:var(--radius-sm);
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  border:1px solid transparent;
  cursor:pointer;
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn-primary{
  background:var(--primary);
  color:#fff;
}
.btn-primary:hover{
  background:var(--primary-dark);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:var(--shadow-2);
}
.btn-primary:active{transform:none;box-shadow:none;}
.btn-ghost{
  background:#fff;
  color:var(--primary);
  border-color:var(--line-strong);
}
.btn-ghost:hover{
  border-color:var(--primary);
  background:var(--primary-light);
  color:var(--primary-dark);
}
.btn-ghost:active{transform:none;}
.btn-block{width:100%;}
.btn-text{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:600;
  color:var(--primary);
  border-bottom:1.5px solid var(--primary);
  padding-bottom:2px;
  transition:color var(--ease),transform var(--ease),border-color var(--ease);
}
.btn-text:hover{
  color:var(--accent);
  border-color:var(--accent);
  transform:translateX(2px);
}

/* ---------- 信任条 ---------- */
.trust-bar{
  display:flex;
  flex-wrap:wrap;
  gap:0;
  margin-top:42px;
  padding-top:20px;
  border-top:1px solid var(--line-strong);
  max-width:720px;
}
.trust-item{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--ink-2);
  padding:4px 22px;
  border-left:1px solid var(--line);
}
.trust-item:first-child{padding-left:0;border-left:0;}
.trust-item i{color:var(--teal);font-size:13px;}

/* ---------- 四步流程 ---------- */
.steps{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
  margin-top:8px;
}
.step{
  position:relative;
  padding-top:26px;
  border-top:2px solid var(--line-strong);
}
.step::before{
  content:"";
  position:absolute;
  top:-2px;
  left:0;
  width:38px;
  height:2px;
  background:var(--primary);
}
.step-num{
  font-size:13px;
  font-weight:700;
  color:var(--primary);
  letter-spacing:.1em;
  font-variant-numeric:tabular-nums;
  display:block;
  margin-bottom:10px;
}
.step h3{
  font-size:18px;
  font-weight:600;
  color:var(--ink);
  margin-bottom:10px;
}
.step p{
  font-size:14.5px;
  line-height:1.8;
  color:var(--ink-2);
}
.step .step-meta{
  display:inline-block;
  margin-top:12px;
  font-size:12.5px;
  color:var(--ink-3);
  border:1px solid var(--line);
  border-radius:6px;
  padding:3px 9px;
}

/* ---------- 图文区块 ---------- */
.prep-grid{
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:48px;
  align-items:center;
}
.prep-figure{
  position:relative;
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  background:var(--primary-light);
}
.prep-figure img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:0;
  transition:transform 220ms ease;
}
.prep-figure:hover img{transform:scale(1.03);}
.prep-list{
  margin-top:26px;
  border-top:1px solid var(--line);
}
.prep-list li{
  display:flex;
  gap:14px;
  padding:16px 0;
  border-bottom:1px solid var(--line);
  font-size:15px;
  color:var(--ink-2);
  line-height:1.75;
}
.prep-list li i{
  color:var(--teal);
  font-size:13px;
  margin-top:7px;
  flex-shrink:0;
}
.prep-list strong{color:var(--ink);font-weight:600;}

/* ---------- 表单区 ---------- */
.consult-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:34px;
  box-shadow:var(--shadow-1);
}
.consult-card h2{
  font-size:23px;
  font-weight:600;
  color:var(--ink);
  line-height:1.4;
}
.consult-card .card-sub{
  margin-top:10px;
  font-size:14.5px;
  color:var(--ink-2);
  line-height:1.8;
}
.consult-form{margin-top:26px;}
.field{margin-bottom:20px;}
.field label{
  display:block;
  font-size:13px;
  color:var(--ink-2);
  margin-bottom:8px;
  font-weight:500;
  letter-spacing:.01em;
}
.field label .req{color:var(--primary);margin-left:3px;}
.field input[type="text"],
.field input[type="tel"],
.field select,
.field textarea{
  width:100%;
  margin-bottom:0;
  height:48px;
  padding:0 14px;
  font-size:15px;
  font-family:inherit;
  color:var(--ink);
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  box-shadow:none;
  transition:border-color var(--ease),box-shadow var(--ease);
  appearance:none;
  -webkit-appearance:none;
}
.field select{
  background-image:linear-gradient(45deg,transparent 50%,var(--ink-3) 50%),linear-gradient(135deg,var(--ink-3) 50%,transparent 50%);
  background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;
  background-size:6px 6px,6px 6px;
  background-repeat:no-repeat;
  padding-right:40px;
}
.field textarea{
  height:auto;
  min-height:118px;
  padding:12px 14px;
  line-height:1.7;
  resize:vertical;
}
.field input:focus,
.field select:focus,
.field textarea:focus{
  outline:none;
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(31,90,166,.14);
}
.field input::placeholder,
.field textarea::placeholder{color:var(--ink-3);}
.check-line{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:13.5px;
  color:var(--ink-2);
  line-height:1.7;
  margin-bottom:20px;
}
.check-line input[type="checkbox"]{
  width:18px;
  height:18px;
  margin:3px 0 0;
  accent-color:var(--primary);
  flex-shrink:0;
}
.form-note{
  display:none;
  margin-top:16px;
  padding:12px 14px;
  border-radius:var(--radius-sm);
  font-size:14px;
  line-height:1.7;
}
.form-note.is-success{
  display:block;
  background:rgba(46,139,114,.08);
  border:1px solid rgba(46,139,114,.28);
  color:#1f6b56;
}
.form-note.is-error{
  display:block;
  background:rgba(232,121,43,.08);
  border:1px solid rgba(232,121,43,.3);
  color:#a4511a;
}
.contact-card{
  background:var(--alt);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:30px;
  height:100%;
}
.contact-card h3{
  font-size:18px;
  font-weight:600;
  color:var(--ink);
  margin-bottom:6px;
}
.contact-card .contact-lead{
  font-size:14px;
  color:var(--ink-2);
  line-height:1.8;
  margin-bottom:20px;
}
.contact-list{border-top:1px solid var(--line-strong);}
.contact-list li{
  display:flex;
  justify-content:space-between;
  gap:16px;
  padding:14px 0;
  border-bottom:1px solid var(--line);
  font-size:14px;
  color:var(--ink-2);
}
.contact-list li span:first-child{
  color:var(--ink-3);
  flex-shrink:0;
}
.contact-list li span:last-child{
  color:var(--ink);
  text-align:right;
  font-variant-numeric:tabular-nums;
}
.contact-foot{
  margin-top:20px;
  font-size:13px;
  color:var(--ink-3);
  line-height:1.8;
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:840px;}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  width:100%;
  padding:20px 0;
  background:none;
  border:0;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  cursor:pointer;
  line-height:1.6;
  transition:color var(--ease);
}
.faq-q:hover{color:var(--primary);}
.faq-q i{
  color:var(--primary);
  font-size:14px;
  flex-shrink:0;
  transition:transform 200ms ease;
}
.faq-item.open .faq-q i{transform:rotate(45deg);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height 220ms ease;
}
.faq-item.open .faq-a{max-height:340px;}
.faq-a p{
  padding:0 0 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--ink-2);
}

/* ---------- CTA 条 ---------- */
.cta-band{
  background:var(--primary-light);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:56px 0;
}
.cta-band-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
}
.cta-band h2{
  font-size:24px;
  font-weight:600;
  color:var(--ink);
  line-height:1.4;
}
.cta-band p{
  margin-top:10px;
  font-size:15px;
  color:var(--ink-2);
  max-width:560px;
  line-height:1.8;
}
.cta-band-actions{
  display:flex;
  align-items:center;
  gap:20px;
  flex-wrap:wrap;
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--alt);
  border-top:1px solid var(--line);
  padding:64px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.1fr;
  gap:40px;
}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand p{
  font-size:14px;
  color:var(--ink-2);
  line-height:1.85;
  margin-bottom:10px;
  max-width:320px;
}
.footer-col h4{
  font-size:14px;
  font-weight:600;
  color:var(--ink);
  letter-spacing:.04em;
  margin-bottom:16px;
}
.footer-col ul li{
  margin-bottom:11px;
  font-size:14px;
  color:var(--ink-2);
  line-height:1.7;
}
.footer-col ul li a{
  font-size:14px;
  color:var(--ink-2);
}
.footer-col ul li a:hover{
  color:var(--primary);
  text-decoration:underline;
  text-underline-offset:3px;
}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
  margin-top:48px;
  padding-top:22px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--ink-3);
}
.to-top{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--ink-2);
}
.to-top:hover{color:var(--primary);}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{padding:0 22px;}
  .nav-links{gap:22px;}
  .hero h1{font-size:32px;}
  .grid-x{gap:20px;}
}
@media (max-width:1023px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-actions .nav-cta{display:none;}
  .section{padding:64px 0;}
  .hero{padding:44px 0 52px;}
  .hero h1{font-size:29px;}
  .cell-8{grid-column:span 12;}
  .cell-4{grid-column:span 12;}
  .cell-6{grid-column:span 6;}
  .cell-3{grid-column:span 6;}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
  .prep-grid{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .trust-item{padding:4px 16px;font-size:13.5px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .grid-x{gap:16px;}
  .cell-6,.cell-3{grid-column:span 12;}
  .section{padding:52px 0;}
  .hero{padding:36px 0 44px;background-image:linear-gradient(180deg,#FFFFFF 0%,rgba(255,255,255,.94) 60%,rgba(255,255,255,.72) 100%),url('/assets/images/backpic/back-1.webp');background-position:center top;}
  .hero h1{font-size:26px;line-height:1.32;}
  .hero-sub{font-size:15.5px;}
  .hero-actions .btn{width:100%;}
  .trust-bar{margin-top:30px;}
  .trust-item{
    width:100%;
    padding:9px 0;
    border-left:0;
    border-bottom:1px solid var(--line);
  }
  .trust-item:last-child{border-bottom:0;}
  .steps{grid-template-columns:1fr;gap:0;}
  .step{
    border-top:0;
    border-left:2px solid var(--line-strong);
    padding:0 0 26px 22px;
  }
  .step::before{
    top:0;
    left:-2px;
    width:2px;
    height:34px;
  }
  .step:last-child{padding-bottom:0;}
  .consult-card{padding:24px;}
  .contact-card{padding:24px;}
  .cta-band{padding:44px 0;}
  .cta-band h2{font-size:21px;}
  .cta-band-actions{width:100%;}
  .cta-band-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:12px;}
  .breadcrumb{font-size:12.5px;}
}
@media (max-width:480px){
  .hero h1{font-size:24px;}
  .section-head h2{font-size:21px;}
  .consult-card h2{font-size:20px;}
  .faq-q{font-size:15px;padding:18px 0;}
  .contact-list li{flex-direction:column;gap:4px;}
  .contact-list li span:last-child{text-align:left;}
}