/* roulang page: index */
:root{
  --ink:#241E4E;
  --ink-deep:#12122B;
  --teal:#169E90;
  --teal-soft:#E6F8F6;
  --teal-light:#21C7B4;
  --teal-dark:#12786E;
  --gold:#F2A93B;
  --bg:#F5F6FA;
  --card:#FFFFFF;
  --line:#E7E9F2;
  --text:#2A2C3D;
  --muted:#6B6F85;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --radius-badge:6px;
  --gutter:24px;
  --shadow-sm:0 2px 8px rgba(16,16,36,.06);
  --shadow-md:0 10px 24px rgba(16,16,36,.10);
  --section-gap:92px;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
body.nav-open{overflow:hidden;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--teal);}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-0.01em;color:var(--ink);line-height:1.3;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--teal-light);outline-offset:2px;border-radius:4px;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:var(--gutter);
  padding-right:var(--gutter);
}
@media (min-width:1400px){.container{max-width:1240px;}}

/* ---------- buttons ---------- */
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:0;
  border:1.5px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn-x.btn-primary{background:var(--teal);color:#fff;box-shadow:0 2px 8px rgba(22,158,144,.24);}
.btn-x.btn-primary:hover{background:var(--teal-dark);color:#fff;transform:translateY(-2px);box-shadow:0 10px 24px rgba(16,16,36,.14);}
.btn-x.btn-primary:active{transform:translateY(0);box-shadow:0 2px 6px rgba(16,16,36,.12);}
.btn-x.btn-secondary{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-x.btn-secondary:hover{color:var(--teal);border-color:var(--teal);transform:translateY(-2px);}
.btn-x.btn-secondary:active{transform:translateY(0);}
.btn-x.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-x.btn-block{width:100%;}
.ghost-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--teal-dark);
}
.ghost-link i{transition:transform .2s ease;font-size:12px;}
.ghost-link:hover i{transform:translateX(3px);}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.86);
  border-bottom:1px solid var(--line);
  backdrop-filter:saturate(150%) blur(6px);
  transition:height .25s ease,box-shadow .25s ease,background-color .25s ease;
}
.site-header.scrolled{background:#fff;box-shadow:0 6px 18px rgba(16,16,36,.08);}
.header-inner{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:16px;
  height:72px;
  transition:height .25s ease;
}
.site-header.scrolled .header-inner{height:60px;}
.nav-side{display:flex;align-items:center;gap:6px;}
.nav-left{justify-content:flex-end;}
.nav-right{justify-content:flex-start;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  height:38px;padding:0 12px;font-size:14.5px;font-weight:500;color:var(--text);
  border-radius:8px;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;
  background:var(--teal);transform:scaleX(0);transform-origin:left center;
  transition:transform .2s ease;border-radius:2px;
}
.nav-link:hover{color:var(--teal);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--ink);font-weight:700;}
.nav-link.active::after{transform:scaleX(1);}
.brand{display:inline-flex;align-items:center;gap:10px;justify-self:center;}
.brand-mark{
  width:36px;height:36px;border-radius:11px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(150deg,var(--ink) 0%,#3A3170 100%);
  color:#fff;font-size:16px;
  box-shadow:0 4px 12px rgba(36,30,78,.22);
}
.brand-text{display:inline-flex;flex-direction:column;line-height:1.15;font-weight:800;font-size:17px;color:var(--ink);letter-spacing:-0.01em;}
.brand-text span{font-size:11px;font-weight:600;color:var(--teal-dark);letter-spacing:.14em;}
.nav-cta{margin-left:6px;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:10px;
  align-items:center;justify-content:center;flex-direction:column;gap:4px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .25s ease,opacity .25s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.mobile-panel{
  display:none;background:#fff;border-top:1px solid var(--line);
  padding:14px var(--gutter) 22px;
}
.mobile-panel.open{display:block;}
.mobile-panel a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 4px;font-size:15.5px;font-weight:500;border-bottom:1px solid var(--line);
}
.mobile-panel a:last-of-type{border-bottom:none;}
.mobile-panel .btn-x{margin-top:16px;}
@media (max-width:991.98px){
  .header-inner{grid-template-columns:auto 1fr auto;height:64px;}
  .nav-side{display:none;}
  .nav-toggle{display:inline-flex;}
  .brand{justify-self:center;}
  .mobile-cta{display:inline-flex;}
}
@media (min-width:992px){.mobile-cta{display:none;}}
@media (max-width:575.98px){
  .brand-text{font-size:15.5px;}
  .brand-text span{font-size:10px;}
  .brand-mark{width:32px;height:32px;border-radius:10px;font-size:14px;}
}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#FFFFFF 0%,#F5F6FA 100%);
  padding:78px 0 84px;
  border-bottom:1px solid var(--line);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(36,30,78,.06) 1px,transparent 1px);
  background-size:20px 20px;
  opacity:.9;
}
.hero::after{
  content:"";position:absolute;right:-140px;top:-120px;width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle,rgba(33,199,180,.10),rgba(33,199,180,0) 68%);
  pointer-events:none;
}
.hero .container{position:relative;z-index:1;}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:.06em;color:var(--teal-dark);
  background:var(--teal-soft);border-radius:var(--radius-badge);
  padding:6px 12px;margin-bottom:20px;
}
.eyebrow i{font-size:11px;}
.hero h1{
  font-size:44px;line-height:1.22;margin-bottom:18px;letter-spacing:-0.02em;
}
.hero h1 em{font-style:normal;color:var(--teal-dark);}
.hero-sub{font-size:17px;color:var(--muted);max-width:520px;margin-bottom:30px;line-height:1.85;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:36px;}
.hero-trust{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;padding-top:26px;border-top:1px solid var(--line);}
.trust-item{display:flex;gap:10px;align-items:flex-start;}
.trust-icon{
  flex:0 0 34px;width:34px;height:34px;border-radius:10px;
  background:var(--teal-soft);color:var(--teal-dark);
  display:inline-flex;align-items:center;justify-content:center;font-size:14px;
}
.trust-title{font-size:14px;font-weight:700;color:var(--ink);line-height:1.4;}
.trust-desc{font-size:12.5px;color:var(--muted);line-height:1.55;margin-top:2px;}
.hero-visual{position:relative;}
.hero-figure{
  border-radius:18px;overflow:hidden;background:#fff;
  border:1px solid var(--line);
  box-shadow:0 18px 44px rgba(16,16,36,.14);
}
.hero-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.hero-caption{font-size:12px;color:var(--muted);margin-top:12px;text-align:right;}
.hero-badge{
  position:absolute;left:-18px;bottom:56px;
  background:#fff;border:1px solid var(--line);border-radius:12px;
  padding:12px 16px;box-shadow:var(--shadow-md);
  display:flex;align-items:center;gap:12px;
}
.hero-badge .num{font-size:22px;font-weight:800;color:var(--ink);font-variant-numeric:tabular-nums;line-height:1;}
.hero-badge .lbl{font-size:12px;color:var(--muted);line-height:1.4;}
@media (max-width:991.98px){
  .hero{padding:52px 0 60px;}
  .hero-grid{grid-template-columns:1fr;gap:38px;}
  .hero h1{font-size:32px;}
  .hero-sub{font-size:16px;}
  .hero-badge{position:static;margin-top:16px;left:auto;bottom:auto;display:inline-flex;}
  .hero-caption{text-align:left;}
}
@media (max-width:575.98px){
  .hero{padding:40px 0 48px;}
  .hero h1{font-size:28px;}
  .hero-trust{grid-template-columns:1fr;gap:14px;}
  .hero-actions .btn-x{flex:1 1 100%;}
}

/* ---------- generic section ---------- */
.section{padding:var(--section-gap) 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap;}
.section-head h2{font-size:32px;letter-spacing:-0.02em;}
.section-head p{font-size:15px;color:var(--muted);margin-top:10px;max-width:620px;}
.kicker{font-size:12.5px;font-weight:700;letter-spacing:.14em;color:var(--teal-dark);margin-bottom:10px;display:block;}
@media (max-width:991.98px){
  :root{--section-gap:64px;}
  .section-head h2{font-size:26px;}
}
@media (max-width:575.98px){
  :root{--section-gap:48px;}
  .section-head{margin-bottom:28px;}
  .section-head h2{font-size:23px;}
}

/* ---------- compare table ---------- */
.compare-wrap{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-sm);
}
.compare-scroll{overflow-x:auto;}
table.compare-table{width:100%;border-collapse:separate;border-spacing:0;min-width:720px;}
.compare-table thead th{
  background:var(--ink-deep);color:#fff;font-size:13px;font-weight:700;
  padding:18px 20px;text-align:left;white-space:nowrap;
}
.compare-table thead th:first-child{width:34%;}
.compare-table thead th.col-rec{background:#1B1B3D;position:relative;}
.compare-table thead th .rec-tag{
  display:inline-flex;align-items:center;gap:4px;
  background:var(--gold);color:#3A2600;font-size:11px;font-weight:800;
  border-radius:var(--radius-badge);padding:2px 8px;margin-left:8px;vertical-align:middle;
}
.compare-table tbody td{
  padding:0 20px;height:56px;font-size:14.5px;color:var(--text);
  border-bottom:1px solid var(--line);vertical-align:middle;
}
.compare-table tbody tr:nth-child(even) td{background:#F7F8FC;}
.compare-table tbody tr:last-child td{border-bottom:none;}
.compare-table tbody td:first-child{font-weight:600;color:var(--ink);}
.compare-table td.col-rec{background:#EEF9F7 !important;border-left:1px solid rgba(33,199,180,.28);border-right:1px solid rgba(33,199,180,.28);}
.compare-table thead th.col-rec::after{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--teal-light);}
.mark-yes{display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;border-radius:50%;background:var(--teal);color:#fff;font-size:11px;}
.mark-no{display:inline-block;width:14px;height:2px;background:#C9CCDB;border-radius:2px;vertical-align:middle;}
.cell-txt{font-size:14px;color:var(--text);}
.compare-foot{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;padding:22px 24px;background:#FBFCFF;border-top:1px solid var(--line);}
.compare-foot p{font-size:13.5px;color:var(--muted);}
.compare-cards{display:none;gap:16px;}
.level-mini{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:20px;box-shadow:var(--shadow-sm);}
.level-mini h3{font-size:18px;margin-bottom:4px;}
.level-mini .price-tip{font-size:13px;color:var(--muted);margin-bottom:14px;}
.level-mini ul li{display:flex;justify-content:space-between;gap:12px;padding:9px 0;border-bottom:1px dashed var(--line);font-size:14px;}
.level-mini ul li:last-child{border-bottom:none;}
.level-mini ul li span:first-child{color:var(--muted);}
.level-mini ul li span:last-child{font-weight:600;color:var(--ink);}
@media (max-width:767.98px){
  .compare-scroll{display:none;}
  .compare-cards{display:grid;grid-template-columns:1fr;}
}

/* ---------- level highlights ---------- */
.level-grid{display:grid;grid-template-columns:1.18fr 1fr;gap:24px;align-items:stretch;}
.level-feature{
  position:relative;background:var(--ink-deep);border-radius:18px;overflow:hidden;
  color:#fff;display:flex;flex-direction:column;
  box-shadow:0 18px 40px rgba(16,16,36,.16);
}
.level-feature img{width:100%;aspect-ratio:16/10;object-fit:cover;opacity:.92;}
.level-feature .lf-body{padding:28px 30px 30px;}
.lf-tag{display:inline-flex;align-items:center;gap:6px;background:rgba(33,199,180,.16);color:var(--teal-light);font-size:12px;font-weight:700;border-radius:var(--radius-badge);padding:5px 10px;margin-bottom:14px;}
.level-feature h3{color:#fff;font-size:24px;margin-bottom:10px;}
.level-feature p{color:rgba(255,255,255,.72);font-size:14.5px;line-height:1.8;margin-bottom:18px;}
.level-feature ul li{
  display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:rgba(255,255,255,.9);
  padding:7px 0;
}
.level-feature ul li i{color:var(--teal-light);font-size:12px;margin-top:7px;}
.level-feature .ghost-link{color:var(--teal-light);margin-top:18px;}
.level-side{display:grid;grid-template-rows:1fr 1fr;gap:24px;}
.level-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px 26px;box-shadow:var(--shadow-sm);
  display:flex;flex-direction:column;justify-content:center;
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.level-card:hover{border-color:rgba(33,199,180,.35);box-shadow:var(--shadow-md);transform:translateY(-4px);}
.level-card .lv-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:8px;}
.level-card h3{font-size:19px;}
.level-card .lv-badge{font-size:11.5px;font-weight:700;color:var(--teal-dark);background:var(--teal-soft);border-radius:var(--radius-badge);padding:3px 9px;}
.level-card .lv-badge.gold{color:#7A5200;background:#FDF1DC;}
.level-card ul{margin:10px 0 14px;}
.level-card ul li{font-size:14px;color:var(--muted);padding:4px 0 4px 16px;position:relative;}
.level-card ul li::before{content:"";position:absolute;left:0;top:13px;width:6px;height:6px;border-radius:50%;background:var(--teal-light);}
@media (max-width:991.98px){
  .level-grid{grid-template-columns:1fr;}
  .level-side{grid-template-rows:auto auto;}
}

/* ---------- preview ---------- */
.preview-filter{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:28px;}
.chip{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;
  border-radius:999px;border:1px solid var(--line);background:#fff;
  font-size:13.5px;font-weight:600;color:var(--muted);cursor:pointer;
  transition:all .2s ease;min-height:34px;
}
.chip:hover{color:var(--teal-dark);border-color:rgba(33,199,180,.5);}
.chip.active{background:var(--ink);border-color:var(--ink);color:#fff;}
.preview-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:24px;}
.preview-main{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-sm);display:flex;flex-direction:column;
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.preview-main:hover{border-color:rgba(33,199,180,.35);box-shadow:var(--shadow-md);transform:translateY(-4px);}
.preview-main img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.preview-main .pm-body{padding:24px 26px 28px;}
.preview-main h3{font-size:21px;margin:12px 0 10px;}
.preview-main p{font-size:14.5px;color:var(--muted);line-height:1.8;}
.preview-side{display:grid;grid-template-rows:1fr 1fr;gap:24px;}
.preview-mini{
  display:grid;grid-template-columns:120px 1fr;gap:16px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:14px;box-shadow:var(--shadow-sm);
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.preview-mini:hover{border-color:rgba(33,199,180,.35);box-shadow:var(--shadow-md);transform:translateY(-4px);}
.preview-mini img{width:120px;height:96px;object-fit:cover;border-radius:10px;}
.preview-mini h4{font-size:16px;line-height:1.45;margin-bottom:6px;}
.preview-mini .meta{font-size:12.5px;color:var(--muted);}
.badge-soft{
  display:inline-flex;align-items:center;font-size:12px;font-weight:600;
  color:var(--teal-dark);background:var(--teal-soft);border-radius:var(--radius-badge);
  padding:4px 10px;
}
@media (max-width:991.98px){
  .preview-grid{grid-template-columns:1fr;}
  .preview-side{grid-template-rows:auto auto;}
}
@media (max-width:575.98px){
  .preview-mini{grid-template-columns:1fr;}
  .preview-mini img{width:100%;height:160px;}
}

/* ---------- cms list ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.post-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;display:flex;flex-direction:column;
  box-shadow:var(--shadow-sm);
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.post-card:hover{border-color:rgba(33,199,180,.35);box-shadow:var(--shadow-md);transform:translateY(-4px);}
.post-card:hover h3{color:var(--teal-dark);}
.post-cover{display:block;overflow:hidden;}
.post-cover img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .35s ease;}
.post-card:hover .post-cover img{transform:scale(1.04);}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.post-body h3{font-size:17px;line-height:1.5;margin:10px 0 8px;transition:color .2s ease;}
.post-body p{
  font-size:14px;color:var(--muted);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  margin-bottom:16px;
}
.post-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:12.5px;color:var(--muted);margin-top:auto;}
.empty-state{
  grid-column:1/-1;
  min-height:240px;border-radius:var(--radius-card);background:#F0F2F8;border:1px dashed #D7DAE7;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;text-align:center;padding:32px;
}
.empty-state i{font-size:28px;color:#A9AEC4;}
.empty-state p{font-size:14.5px;color:var(--muted);}
.empty-state a{font-size:14px;font-weight:600;color:var(--teal-dark);}
@media (max-width:991.98px){.post-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (max-width:575.98px){.post-grid{grid-template-columns:1fr;}}

/* ---------- faq ---------- */
.faq-layout{display:grid;grid-template-columns:.78fr 1.22fr;gap:48px;align-items:start;}
.faq-intro h2{font-size:32px;margin-bottom:14px;}
.faq-intro p{font-size:15px;color:var(--muted);line-height:1.85;margin-bottom:22px;}
.faq-intro .faq-note{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:18px 20px;font-size:13.5px;color:var(--muted);line-height:1.8;box-shadow:var(--shadow-sm);
}
.faq-intro .faq-note strong{color:var(--ink);display:block;margin-bottom:4px;font-size:14px;}
.accordion-x .accordion-item{
  background:#fff;border:1px solid var(--line);border-radius:12px !important;
  margin-bottom:12px;overflow:hidden;box-shadow:var(--shadow-sm);
}
.accordion-x .accordion-button{
  background:#fff;color:var(--ink);font-size:16px;font-weight:600;
  padding:16px 20px 16px 20px;border:none;box-shadow:none;
  display:flex;justify-content:space-between;align-items:center;gap:16px;width:100%;text-align:left;
}
.accordion-x .accordion-button:not(.collapsed){color:var(--teal-dark);background:#fff;}
.accordion-x .accordion-button:focus{box-shadow:none;outline:2px solid var(--teal-light);outline-offset:-3px;}
.accordion-x .accordion-button::after{
  content:"\002B";font-family:var(--font);font-size:20px;font-weight:400;color:var(--muted);
  background-image:none;width:auto;height:auto;transform:none;line-height:1;transition:color .2s ease;
}
.accordion-x .accordion-button:not(.collapsed)::after{content:"\2212";color:var(--teal-dark);}
.accordion-x .accordion-body{
  padding:0 20px 18px 23px;font-size:15px;line-height:1.85;color:var(--muted);
  border-left:3px solid transparent;
}
.accordion-x .accordion-item:has(.accordion-button:not(.collapsed)) .accordion-body{
  border-left-color:var(--teal-light);
}
@media (max-width:991.98px){
  .faq-layout{grid-template-columns:1fr;gap:32px;}
  .faq-intro h2{font-size:26px;}
}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;background:var(--ink-deep);color:#fff;padding:76px 0;
  overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:22px 22px;pointer-events:none;
}
.cta-grid{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start;}
.cta-copy h2{color:#fff;font-size:32px;margin-bottom:14px;letter-spacing:-0.02em;}
.cta-copy p{color:rgba(255,255,255,.72);font-size:15px;line-height:1.85;margin-bottom:24px;}
.cta-points li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:rgba(255,255,255,.88);padding:6px 0;}
.cta-points li i{color:var(--teal-light);font-size:12px;margin-top:7px;}
.lead-form{
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.12);
  border-radius:16px;padding:28px;
}
.form-row{margin-bottom:16px;}
.form-label-x{display:block;font-size:13px;font-weight:600;color:rgba(255,255,255,.86);margin-bottom:7px;}
.form-control-x,.form-select-x{
  width:100%;height:46px;padding:10px 14px;border-radius:10px;
  border:1.5px solid rgba(255,255,255,.18);background:rgba(255,255,255,.06);color:#fff;
  font-size:14.5px;transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
textarea.form-control-x{height:auto;min-height:96px;resize:vertical;line-height:1.7;}
.form-select-x option{color:#12122B;}
.form-control-x::placeholder{color:rgba(255,255,255,.42);}
.form-control-x:focus,.form-select-x:focus{
  outline:none;border-color:var(--teal-light);background:rgba(255,255,255,.10);
  box-shadow:0 0 0 4px rgba(33,199,180,.16);
}
.form-hint{font-size:12px;color:rgba(255,255,255,.5);margin-top:12px;text-align:center;line-height:1.7;}
@media (max-width:991.98px){
  .cta-band{padding:56px 0;}
  .cta-grid{grid-template-columns:1fr;gap:34px;}
  .cta-copy h2{font-size:26px;}
  .lead-form{padding:22px;}
}
@media (max-width:575.98px){
  .cta-band{padding:46px 0;}
  .cta-copy h2{font-size:23px;}
}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-deep);color:rgba(255,255,255,.72);padding:64px 0 0;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;padding-bottom:44px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.10);box-shadow:none;color:#fff;}
.footer-brand-text{font-size:17px;font-weight:800;color:#fff;line-height:1.2;}
.footer-brand-text span{display:block;font-size:11px;font-weight:600;color:var(--teal-light);letter-spacing:.14em;margin-top:2px;}
.footer-about{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.62);max-width:320px;margin-bottom:16px;}
.footer-contact{font-size:13px;color:rgba(255,255,255,.55);line-height:1.9;}
.footer-col h4{font-size:13.5px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer-col a,.footer-col p{display:block;font-size:13.5px;color:rgba(255,255,255,.64);padding:5px 0;transition:color .2s ease;}
.footer-col a:hover{color:var(--teal-light);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.10);padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:rgba(255,255,255,.45);
}
@media (max-width:991.98px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:575.98px){
  .site-footer{padding-top:48px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
/* reduced motion */
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* roulang page: article */
:root{
  --ink:#241E4E;
  --ink-deep:#12122B;
  --accent:#169E90;
  --accent-bright:#21C7B4;
  --accent-soft:#E6F8F6;
  --accent-deep:#12786E;
  --gold:#F2A93B;
  --bg:#F5F6FA;
  --card:#FFFFFF;
  --line:#E7E9F2;
  --text:#2A2C3D;
  --muted:#6B6F85;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-badge:6px;
  --sh-1:0 2px 8px rgba(16,16,36,.06);
  --sh-2:0 10px 24px rgba(16,16,36,.10);
  --gutter:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,p,ul,ol,figure{margin:0}
ul,ol{padding-left:1.2em}
a{color:inherit;text-decoration:none;transition:color .2s}
a:hover{color:var(--accent)}
img{max-width:100%;display:block;border-radius:var(--r-img)}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--accent-bright);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
@media (min-width:1400px){.container{max-width:1240px}}
@media (max-width:575.98px){.container{padding-left:16px;padding-right:16px}}
.section{padding:88px 0}
@media (max-width:991.98px){.section{padding:64px 0}}
@media (max-width:575.98px){.section{padding:48px 0}}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.94);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.scrolled{background:#fff;box-shadow:0 6px 18px rgba(16,16,36,.08)}
.header-inner{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:18px;
  height:72px;
  transition:height .25s ease;
}
.site-header.scrolled .header-inner{height:60px}
.nav-side{display:flex;align-items:center;gap:26px}
.nav-right-wrap{display:flex;align-items:center;gap:20px;justify-content:flex-end}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  font-size:15px;font-weight:500;color:var(--text);
  padding:6px 2px;white-space:nowrap;
  transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--accent);border-radius:2px;
  transform:scaleX(0);transform-origin:left center;
  transition:transform .2s ease;
}
.nav-link:hover{color:var(--accent)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--accent);font-weight:700}
.nav-link.is-active::after{transform:scaleX(1)}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:18px;font-weight:800;letter-spacing:-.01em;color:var(--ink);
  white-space:nowrap;justify-self:center;
}
.brand:hover{color:var(--ink)}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;
  background:var(--accent);color:#fff;font-size:15px;
  box-shadow:0 2px 8px rgba(22,158,144,.28);
}
.brand-text span{color:var(--accent)}
.nav-cta{white-space:nowrap}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line);border-radius:10px;
  background:#fff;cursor:pointer;
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .25s ease,opacity .25s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.mobile-menu{display:none}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1.5px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:#13907f;color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-secondary{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-secondary:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px)}
.btn-secondary:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--accent);padding:0 4px;height:auto}
.btn-ghost i{transition:transform .2s ease}
.btn-ghost:hover i{transform:translateX(3px)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-lg{height:48px;padding:0 26px;font-size:16px}
.btn-block{width:100%}

/* ---------- Badges / meta ---------- */
.badge-tag{
  display:inline-flex;align-items:center;
  padding:4px 10px;border-radius:var(--r-badge);
  background:var(--accent-soft);color:var(--accent-deep);
  font-size:12px;font-weight:600;line-height:1.6;
}
.badge-gold{
  display:inline-flex;align-items:center;gap:4px;
  padding:3px 9px;border-radius:var(--r-badge);
  background:#FEF3E2;color:#9A6412;font-size:12px;font-weight:600;
}
.meta-item{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13.5px;color:var(--muted);font-variant-numeric:tabular-nums;
}
.post-meta{display:flex;flex-wrap:wrap;align-items:center;gap:16px}

/* ---------- Page hero / breadcrumb ---------- */
.page-hero{
  background:#fff;
  border-bottom:1px solid var(--line);
  padding:28px 0 40px;
}
.breadcrumb-nav{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13.5px;color:var(--muted);
  margin-bottom:20px;
}
.breadcrumb-nav a{color:var(--muted)}
.breadcrumb-nav a:hover{color:var(--accent)}
.breadcrumb-nav .sep{color:#C2C6D6}
.breadcrumb-nav .current{color:var(--text);font-weight:500;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.page-hero h1{
  font-size:34px;line-height:1.35;font-weight:800;letter-spacing:-.01em;
  color:var(--ink);margin-bottom:18px;word-break:break-word;
}
@media (max-width:767.98px){.page-hero h1{font-size:25px}}

/* ---------- Article layout ---------- */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 300px;
  gap:44px;
  align-items:start;
}
@media (max-width:1199.98px){
  .article-layout{grid-template-columns:1fr;gap:36px}
}
.article-main{max-width:760px;min-width:0}
.article-panel{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:32px;
  box-shadow:var(--sh-1);
}
@media (max-width:575.98px){.article-panel{padding:20px 16px}}

.article-body{font-size:16.5px;line-height:1.85;color:var(--text);word-break:break-word}
.article-body > * + *{margin-top:1.1em}
.article-body h2{
  font-size:25px;font-weight:800;color:var(--ink);letter-spacing:-.01em;
  line-height:1.4;margin-top:2em;padding-left:14px;border-left:4px solid var(--accent);
}
.article-body h3{
  font-size:19px;font-weight:700;color:var(--ink);
  line-height:1.5;margin-top:1.8em;
}
.article-body h4{font-size:17px;font-weight:700;color:var(--ink);margin-top:1.6em}
.article-body p{margin:0}
.article-body ul,.article-body ol{padding-left:1.35em}
.article-body li + li{margin-top:.5em}
.article-body li::marker{color:var(--accent)}
.article-body blockquote{
  margin:1.6em 0;padding:18px 22px;
  background:var(--accent-soft);
  border-left:4px solid var(--accent);
  border-radius:10px;color:var(--accent-deep);font-size:16px;
}
.article-body blockquote p + p{margin-top:.8em}
.article-body a{color:var(--accent);border-bottom:1px solid rgba(22,158,144,.35)}
.article-body a:hover{color:var(--accent-deep);border-bottom-color:var(--accent-deep)}
.article-body img{border-radius:var(--r-img);margin:1.4em 0;height:auto}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:13px;color:var(--muted);margin-top:10px;text-align:center}
.article-body table{
  width:100%;border-collapse:separate;border-spacing:0;
  font-size:15px;border:1px solid var(--line);border-radius:12px;
  overflow:hidden;margin:1.6em 0;
}
.article-body thead th{
  background:var(--ink-deep);color:#fff;font-size:13.5px;font-weight:600;
  padding:12px 14px;text-align:left;
}
.article-body tbody td{padding:12px 14px;border-top:1px solid var(--line)}
.article-body tbody tr:nth-child(even){background:#F7F8FC}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0}
.article-body code{
  background:#F1F2F8;color:var(--accent-deep);
  padding:2px 6px;border-radius:5px;font-size:.92em;
}
.article-body .table-wrap{overflow-x:auto}

.article-end{
  margin-top:36px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
}
.article-end .end-note{font-size:13.5px;color:var(--muted)}

/* ---------- Sidebar ---------- */
.side-col{display:flex;flex-direction:column;gap:20px;position:sticky;top:92px}
@media (max-width:1199.98px){.side-col{position:static}}
.side-card{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-1);
}
.side-card h3{
  font-size:15px;font-weight:800;color:var(--ink);
  margin-bottom:14px;letter-spacing:-.01em;
}
.side-nav-list{display:flex;flex-direction:column;gap:2px}
.side-nav-list a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:44px;padding:8px 10px;border-radius:9px;
  font-size:14.5px;color:var(--text);transition:background .2s,color .2s;
}
.side-nav-list a i{font-size:12px;color:#C2C6D6;transition:color .2s,transform .2s}
.side-nav-list a:hover{background:var(--accent-soft);color:var(--accent-deep)}
.side-nav-list a:hover i{color:var(--accent);transform:translateX(2px)}
.side-cta{
  background:var(--ink-deep);border-color:var(--ink-deep);
  color:#D7DAE8;overflow:hidden;padding:0;
}
.side-cta .side-cta-img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0}
.side-cta .side-cta-body{padding:20px 22px 24px}
.side-cta h3{color:#fff;margin-bottom:10px}
.side-cta p{font-size:13.5px;line-height:1.75;color:#A7ABBF;margin-bottom:16px}
.side-cta .btn{width:100%}
.side-note{font-size:12px;color:#8E93AA;margin-top:12px;line-height:1.7}

/* ---------- Related ---------- */
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:16px;flex-wrap:wrap;margin-bottom:28px;
}
.section-head h2{
  font-size:28px;font-weight:800;letter-spacing:-.01em;color:var(--ink);line-height:1.35;
}
@media (max-width:767.98px){.section-head h2{font-size:23px}}
.section-head .sub{font-size:14px;color:var(--muted);margin-top:6px}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gutter)}
@media (max-width:991.98px){.related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:767.98px){.related-grid{grid-template-columns:1fr}}
.rel-card{
  display:flex;flex-direction:column;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(33,199,180,.35)}
.rel-card:hover .rel-title{color:var(--accent)}
.rel-cover{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0}
.rel-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-title{font-size:16.5px;font-weight:700;color:var(--ink);line-height:1.55;letter-spacing:-.01em;transition:color .2s}
.rel-desc{font-size:14px;color:var(--muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:auto;padding-top:6px}

/* ---------- CTA band ---------- */
.cta-band{
  background:var(--ink-deep);color:#D7DAE8;
  background-image:radial-gradient(rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:22px 22px;
  padding:64px 0;
}
.cta-inner{display:grid;grid-template-columns:1.3fr .9fr;gap:40px;align-items:center}
@media (max-width:991.98px){.cta-inner{grid-template-columns:1fr;gap:28px}}
.cta-band h2{font-size:29px;font-weight:800;color:#fff;letter-spacing:-.01em;line-height:1.4;margin-bottom:14px}
@media (max-width:767.98px){.cta-band h2{font-size:23px}}
.cta-band p{font-size:15px;color:#A7ABBF;line-height:1.85}
.cta-points{list-style:none;padding:0;margin:20px 0 0;display:flex;flex-direction:column;gap:10px}
.cta-points li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:#C9CCE0}
.cta-points li i{color:var(--accent-bright);font-size:13px;margin-top:6px}
.cta-actions{display:flex;flex-direction:column;gap:12px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:var(--r-card);padding:24px}
.cta-actions .btn-primary{width:100%}
.cta-actions .btn-secondary{border-color:rgba(255,255,255,.5);color:#fff;width:100%}
.cta-actions .btn-secondary:hover{border-color:var(--accent-bright);color:var(--accent-bright)}
.cta-actions .hint{font-size:12.5px;color:#8E93AA;text-align:center;margin-top:4px}

/* ---------- Empty state ---------- */
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:12px;min-height:240px;padding:40px 24px;text-align:center;
  background:#F2F3F8;border:1px dashed #D9DCE8;border-radius:var(--r-card);
}
.empty-state i{font-size:28px;color:#A9AEC4}
.empty-state p{font-size:15px;color:var(--muted);margin:0}
.empty-state a{color:var(--accent);font-weight:600}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink-deep);color:#C9CCE0;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding-bottom:40px}
@media (max-width:991.98px){.footer-grid{grid-template-columns:1fr 1fr;gap:28px}}
@media (max-width:575.98px){.footer-grid{grid-template-columns:1fr;padding-bottom:28px}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand-text{color:#fff;font-weight:800;font-size:17px;letter-spacing:-.01em}
.footer-brand-text span{color:var(--accent-bright)}
.footer-about{font-size:14px;line-height:1.85;color:#A7ABBF;margin:0 0 12px;max-width:340px}
.footer-contact{font-size:13px;line-height:1.9;color:#8E93AA;margin:0}
.footer-col h4{font-size:14px;color:#fff;font-weight:700;margin:0 0 12px}
.footer-col a{display:block;font-size:14px;color:#A7ABBF;padding:5px 0;transition:color .2s}
.footer-col a:hover{color:var(--accent-bright)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:18px 0;display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:#8E93AA;
}

/* ---------- Mobile nav ---------- */
@media (max-width:991.98px){
  .header-inner{grid-template-columns:44px 1fr auto;height:64px;gap:10px}
  .site-header.scrolled .header-inner{height:58px}
  .nav-toggle{display:flex}
  .nav-left,.nav-right-wrap .nav-right{display:none}
  .nav-right-wrap{gap:0}
  .brand{font-size:16px;justify-self:center}
  .brand-mark{width:30px;height:30px;font-size:13px;border-radius:9px}
  .nav-cta{height:36px;padding:0 14px;font-size:13px}
  .mobile-menu{
    display:block;overflow:hidden;max-height:0;
    background:#fff;border-top:0 solid var(--line);
    transition:max-height .32s ease,border-top-width .32s ease;
  }
  .mobile-menu.open{max-height:560px;border-top:1px solid var(--line)}
  .mobile-nav{display:flex;flex-direction:column;padding:14px 24px 24px;gap:2px}
  .mobile-link{
    display:flex;align-items:center;min-height:46px;
    font-size:15.5px;font-weight:500;color:var(--text);
    border-bottom:1px solid var(--line);
  }
  .mobile-link.is-active{color:var(--accent);font-weight:700}
  .mobile-nav .btn{margin-top:16px}
}
@media (max-width:575.98px){
  .mobile-nav{padding:12px 16px 20px}
}

/* roulang page: category1 */
:root{
  --ink:#241E4E;
  --ink-deep:#12122B;
  --teal:#169E90;
  --teal-bright:#21C7B4;
  --teal-soft:#E6F8F6;
  --teal-deep:#12786E;
  --gold:#F2A93B;
  --bg:#F5F6FA;
  --card:#FFFFFF;
  --line:#E7E9F2;
  --text:#2A2C3D;
  --muted:#6B6F85;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --radius-badge:6px;
  --shadow-sm:0 2px 8px rgba(16,16,36,.06);
  --shadow-md:0 10px 24px rgba(16,16,36,.10);
  --gutter:24px;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.78;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-img)}
a{color:var(--ink);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--teal)}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;letter-spacing:-.01em;line-height:1.28}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--teal-bright);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
@media (min-width:1400px){.container{max-width:1240px}}
@media (max-width:575px){.container{padding-left:16px;padding-right:16px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(16,16,36,.09);background:#fff}
.header-inner{
  display:grid;grid-template-columns:1fr auto 1fr;
  align-items:center;gap:18px;height:72px;
  transition:height .25s ease;
}
.site-header.is-scrolled .header-inner{height:60px}
.nav-side{display:flex;align-items:center;gap:26px}
.nav-left{justify-self:start}
.nav-right{justify-content:flex-end}
.nav-right-wrap{justify-self:end;display:flex;align-items:center;gap:22px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  min-height:44px;padding:4px 0;
  font-size:15px;font-weight:500;color:var(--text);
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:6px;height:2px;width:0;
  background:var(--teal);transition:width .2s ease;
}
.nav-link:hover{color:var(--teal)}
.nav-link:hover::after{width:100%}
.nav-link.active{color:var(--teal);font-weight:700}
.nav-link.active::after{width:100%}
.brand{justify-self:center;display:inline-flex;align-items:center;gap:10px;min-width:120px}
.brand-mark{
  width:36px;height:36px;border-radius:11px;background:var(--ink);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--teal-bright);font-size:15px;flex:0 0 auto;
}
.brand-text{font-size:19px;font-weight:800;color:var(--ink);letter-spacing:-.01em;white-space:nowrap}
.brand-text span{color:var(--teal)}
.btn-nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:40px;padding:0 18px;border-radius:var(--radius-btn);
  background:var(--teal);color:#fff;font-size:14px;font-weight:700;
  box-shadow:var(--shadow-sm);transition:transform .2s ease,background .2s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.btn-nav-cta:hover{background:#12897d;color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-md)}
.btn-nav-cta:active{transform:translateY(0)}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);
  border-radius:10px;background:#fff;color:var(--ink);
  align-items:center;justify-content:center;font-size:16px;cursor:pointer;
}
.nav-toggle:hover{border-color:rgba(33,199,180,.5);color:var(--teal)}
.mobile-panel{display:none}
.mobile-panel.open{display:block}
.mobile-panel{
  position:absolute;left:0;right:0;top:100%;
  background:#fff;border-bottom:1px solid var(--line);
  box-shadow:0 18px 36px rgba(16,16,36,.14);
  padding:14px 24px 26px;
  max-height:calc(100vh - 60px);overflow:auto;
}
.mobile-panel .m-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 4px;font-size:16px;font-weight:600;
  color:var(--text);border-bottom:1px solid var(--line);
}
.mobile-panel .m-link.active{color:var(--teal)}
.mobile-panel .m-link i{color:var(--muted);font-size:12px}
.mobile-panel .m-cta{
  margin-top:18px;display:flex;align-items:center;justify-content:center;
  min-height:48px;border-radius:var(--radius-btn);background:var(--teal);
  color:#fff;font-weight:700;
}
body.nav-open{overflow:hidden}
@media (max-width:991.98px){
  .header-inner{grid-template-columns:44px 1fr auto;height:64px;gap:10px}
  .site-header.is-scrolled .header-inner{height:58px}
  .nav-left,.nav-right{display:none}
  .nav-toggle{display:inline-flex;justify-self:start}
  .brand{justify-self:center}
  .brand-text{font-size:17px}
  .btn-nav-cta{min-height:38px;padding:0 14px;font-size:13px}
  .nav-right-wrap{gap:0}
}
@media (max-width:400px){
  .brand-text{font-size:15.5px}
  .brand-mark{width:30px;height:30px;border-radius:9px;font-size:13px}
}

/* ---------- buttons ---------- */
.btn-brand,.btn-outline-brand,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:700;line-height:1.2;cursor:pointer;
  border:1.5px solid transparent;
  transition:transform .2s ease,background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.btn-brand{background:var(--teal);color:#fff;box-shadow:var(--shadow-sm)}
.btn-brand:hover{background:#12897d;color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-md)}
.btn-brand:active{transform:translateY(0);box-shadow:var(--shadow-sm)}
.btn-brand.lg{min-height:48px;padding:0 28px;font-size:16px}
.btn-outline-brand{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-outline-brand:hover{color:var(--teal);border-color:var(--teal);transform:translateY(-2px)}
.btn-outline-brand:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--teal-deep);padding:0;min-height:0;font-weight:700}
.btn-ghost i{transition:transform .2s ease}
.btn-ghost:hover{color:var(--teal)}
.btn-ghost:hover i{transform:translateX(3px)}
.btn-brand:disabled,.btn-outline-brand:disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background-color:#F0F1F8;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(circle at 12% 26%,rgba(36,30,78,.055) 1.4px,transparent 1.5px) 0 0/22px 22px,
    linear-gradient(100deg,rgba(255,255,255,.97) 0%,rgba(255,255,255,.94) 46%,rgba(255,255,255,.74) 100%);
}
.page-hero .container{position:relative;z-index:2;padding-top:44px;padding-bottom:44px}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:16px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--teal)}
.breadcrumb .sep{color:#C3C7D6}
.breadcrumb .current{color:var(--ink);font-weight:600}
.page-hero h1{font-size:44px;max-width:860px}
.page-hero .page-lead{margin-top:16px;font-size:17px;color:var(--muted);max-width:680px}
.hero-tags{margin-top:22px;display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;color:var(--teal-deep);
  background:var(--teal-soft);border-radius:var(--radius-badge);
  padding:4px 10px;
}
@media (max-width:991.98px){
  .page-hero h1{font-size:34px}
  .page-hero .container{padding-top:36px;padding-bottom:36px}
}
@media (max-width:575px){
  .page-hero h1{font-size:27px;line-height:1.34}
  .page-hero .page-lead{font-size:15.5px}
}

/* ---------- sections ---------- */
.section{padding:88px 0}
.section.tight{padding:64px 0}
.section.alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:720px;margin-bottom:40px}
.eyebrow{
  display:inline-block;font-size:12px;font-weight:800;letter-spacing:.14em;
  color:var(--teal-deep);text-transform:uppercase;margin-bottom:12px;
}
.section-head h2{font-size:32px}
.section-head p{margin-top:14px;color:var(--muted);font-size:16px}
@media (max-width:991.98px){
  .section{padding:64px 0}
  .section-head h2{font-size:26px}
}
@media (max-width:575px){
  .section{padding:48px 0}
  .section.tight{padding:40px 0}
  .section-head{margin-bottom:28px}
  .section-head h2{font-size:23px}
}

/* ---------- steps ---------- */
.step-bar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gutter);
}
.step-item{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);padding:26px 24px;box-shadow:var(--shadow-sm)}
.step-item::after{
  content:"";position:absolute;top:47px;right:-25px;width:26px;border-top:2px dashed #CDD2E4;
}
.step-item:last-child::after{display:none}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;background:var(--teal-soft);
  color:var(--teal-deep);font-weight:800;font-size:16px;
  font-variant-numeric:tabular-nums;margin-bottom:16px;
}
.step-item h3{font-size:19px;margin-bottom:8px}
.step-item p{font-size:14.5px;color:var(--muted);line-height:1.75}
@media (max-width:1199.98px){
  .step-bar{grid-template-columns:repeat(2,1fr)}
  .step-item:nth-child(2)::after{display:none}
}
@media (max-width:575px){
  .step-bar{grid-template-columns:1fr;gap:16px}
  .step-item{padding:22px 20px}
  .step-item::after{display:none}
}

/* ---------- explain cards ---------- */
.explain-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--gutter)}
.explain-card{
  display:grid;grid-template-columns:1fr 168px;gap:22px;align-items:center;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px;box-shadow:var(--shadow-sm);
  transition:box-shadow .25s ease,border-color .25s ease;
}
.explain-card:hover{box-shadow:var(--shadow-md);border-color:rgba(33,199,180,.35)}
.explain-card h3{font-size:20px;margin-bottom:12px}
.explain-card p{font-size:15px;color:var(--muted);line-height:1.8}
.explain-card ul{margin-top:14px;display:grid;gap:8px}
.explain-card li{position:relative;padding-left:20px;font-size:14.5px;color:var(--text)}
.explain-card li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:50%;
  background:var(--teal);opacity:.75;
}
.explain-card img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-img)}
.explain-card figure{margin:0}
.explain-card figcaption{margin-top:8px;font-size:12px;color:var(--muted);line-height:1.6}
@media (max-width:1199.98px){
  .explain-grid{grid-template-columns:1fr}
}
@media (max-width:575px){
  .explain-card{grid-template-columns:1fr;padding:22px 20px;gap:18px}
  .explain-card img{aspect-ratio:16/10}
}

/* ---------- dark band checklist ---------- */
.dark-band{
  position:relative;overflow:hidden;background:var(--ink-deep);color:#E7E8F2;
  padding:80px 0;
}
.dark-band::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 82% 18%,rgba(33,199,180,.055) 1.6px,transparent 1.7px) 0 0/26px 26px;
  pointer-events:none;
}
.dark-band .container{position:relative;z-index:2}
.dark-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:56px;align-items:start}
.dark-grid h2{color:#fff;font-size:30px}
.dark-grid .dark-lead{margin-top:16px;color:#AFB2C8;font-size:15.5px;line-height:1.85;max-width:420px}
.dark-note{
  margin-top:24px;display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--teal-bright);font-weight:600;
}
.check-list{display:grid;gap:14px}
.check-item{
  display:grid;grid-template-columns:28px 1fr;gap:14px;align-items:start;
  background:rgba(255,255,255,.045);border:1px solid rgba(255,255,255,.10);
  border-radius:12px;padding:16px 18px;
  transition:background .2s ease,border-color .2s ease;
}
.check-item:hover{background:rgba(255,255,255,.075);border-color:rgba(33,199,180,.4)}
.check-item .ck{
  width:26px;height:26px;border-radius:50%;background:var(--teal);
  display:inline-flex;align-items:center;justify-content:center;
  color:#fff;font-size:11px;margin-top:2px;
}
.check-item h4{color:#fff;font-size:15.5px;font-weight:700;margin-bottom:2px}
.check-item p{font-size:13.5px;color:#A9ACC2;line-height:1.7}
@media (max-width:991.98px){
  .dark-band{padding:58px 0}
  .dark-grid{grid-template-columns:1fr;gap:32px}
  .dark-grid h2{font-size:25px}
}

/* ---------- compare mini strip ---------- */
.quick-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gutter)}
.quick-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px;box-shadow:var(--shadow-sm);
}
.quick-card .q-icon{
  width:42px;height:42px;border-radius:12px;background:var(--teal-soft);
  color:var(--teal-deep);display:inline-flex;align-items:center;justify-content:center;
  font-size:16px;margin-bottom:16px;
}
.quick-card h3{font-size:18px;margin-bottom:8px}
.quick-card p{font-size:14.5px;color:var(--muted);line-height:1.78}
.quick-card .btn-ghost{margin-top:16px;font-size:14px}
@media (max-width:991.98px){.quick-grid{grid-template-columns:1fr 1fr}}
@media (max-width:575px){.quick-grid{grid-template-columns:1fr}}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:920px;margin:0 auto}
.accordion-item{
  background:#fff;border:1px solid var(--line);border-radius:12px;
  margin-bottom:12px;overflow:hidden;box-shadow:var(--shadow-sm);
}
.accordion-item:last-child{margin-bottom:0}
.accordion-button{
  width:100%;text-align:left;background:#fff;border:0;
  padding:18px 20px;font-size:16px;font-weight:600;color:var(--text);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  box-shadow:none;transition:background .2s ease,color .2s ease;
}
.accordion-button:hover{color:var(--teal-deep);background:#FBFCFE}
.accordion-button:not(.collapsed){
  color:var(--teal-deep);background:#F3FBFA;
  box-shadow:inset 3px 0 0 var(--teal);
}
.accordion-button:focus{box-shadow:none;outline:none}
.accordion-button:focus-visible{outline:2px solid var(--teal-bright);outline-offset:-2px}
.accordion-button::after{
  content:"+";background-image:none;transform:none;
  width:24px;height:24px;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  font-size:20px;font-weight:500;line-height:1;color:var(--teal);
}
.accordion-button:not(.collapsed)::after{content:"−";color:var(--teal-deep)}
.accordion-body{padding:4px 20px 20px;font-size:15px;line-height:1.82;color:var(--muted)}
.accordion-body strong{color:var(--ink)}

/* ---------- CTA band ---------- */
.cta-band{
  background:var(--ink-deep);border-radius:20px;padding:48px;
  display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;
  position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 18% 78%,rgba(33,199,180,.06) 1.5px,transparent 1.6px) 0 0/24px 24px;
  pointer-events:none;
}
.cta-band > *{position:relative;z-index:2}
.cta-band h2{color:#fff;font-size:30px}
.cta-band .cta-lead{margin-top:14px;color:#AFB2C8;font-size:15.5px;line-height:1.8}
.cta-points{margin-top:22px;display:grid;gap:10px}
.cta-points li{display:flex;align-items:flex-start;gap:10px;color:#DCDEEB;font-size:14.5px}
.cta-points i{color:var(--teal-bright);font-size:13px;margin-top:6px}
.form-card{background:#fff;border-radius:16px;padding:28px;box-shadow:var(--shadow-md)}
.form-card h3{font-size:19px;margin-bottom:6px}
.form-card .form-tip{font-size:13px;color:var(--muted);margin-bottom:18px}
.form-row{margin-bottom:14px}
.form-row label{display:block;font-size:13px;font-weight:600;color:var(--ink);margin-bottom:6px}
.form-control,.form-select{
  width:100%;min-height:44px;padding:10px 14px;
  border:1.5px solid #E1E4EF;border-radius:10px;background:#fff;
  font-size:14.5px;color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease;
}
textarea.form-control{min-height:88px;resize:vertical;line-height:1.7}
.form-control:focus,.form-select:focus{
  border-color:var(--teal);box-shadow:0 0 0 4px rgba(33,199,180,.16);outline:none;
}
.form-control::placeholder{color:#A7ABBF}
.form-card .btn-brand{width:100%;margin-top:6px}
.form-note{font-size:12px;color:var(--muted);margin-top:12px;line-height:1.7}
.form-feedback{display:none;margin-top:12px;font-size:13px;color:var(--teal-deep);font-weight:600}
.form-feedback.show{display:block}
@media (max-width:991.98px){
  .cta-band{grid-template-columns:1fr;padding:32px;gap:28px}
  .cta-band h2{font-size:25px}
}
@media (max-width:575px){
  .cta-band{padding:24px 20px;border-radius:16px}
  .form-card{padding:22px 18px}
}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-deep);color:#C9CBDC;padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand-text{font-size:18px;font-weight:800;color:#fff;letter-spacing:-.01em}
.footer-brand-text span{color:var(--teal-bright)}
.footer-about{font-size:14px;line-height:1.8;color:#A9ACC2;max-width:320px}
.footer-contact{margin-top:14px;font-size:13px;line-height:1.8;color:#8F93AC}
.footer-col h4{color:#fff;font-size:14px;font-weight:700;margin-bottom:14px;letter-spacing:.02em}
.footer-col a{display:block;font-size:14px;color:#A9ACC2;padding:6px 0;transition:color .2s ease}
.footer-col a:hover{color:var(--teal-bright)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0;display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:13px;color:#8F93AC;
}
@media (max-width:991.98px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .site-footer{padding-top:48px}
}
@media (max-width:575px){
  .footer-grid{grid-template-columns:1fr}
}

/* roulang page: category3 */
:root{
  --ink:#241E4E;
  --ink-deep:#12122B;
  --accent:#169E90;
  --accent-bright:#21C7B4;
  --accent-soft:#E6F8F6;
  --accent-deep:#12786E;
  --gold:#F2A93B;
  --bg:#F5F6FA;
  --card:#FFFFFF;
  --line:#E7E9F2;
  --text:#2A2C3D;
  --muted:#6B6F85;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-badge:6px;
  --shadow:0 2px 8px rgba(16,16,36,.06);
  --shadow-hover:0 10px 24px rgba(16,16,36,.10);
  --gutter:24px;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;padding:0;}
ul,ol{list-style:none;}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;}
:focus-visible{outline:2px solid var(--accent-bright);outline-offset:2px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1400px){
  .container{max-width:1240px;}
}
@media (max-width:575.98px){
  .container{padding:0 16px;}
}

/* ============ HEADER / NAV ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(255,255,255,.9);
  border-bottom:1px solid var(--line);
  transition:background .25s ease,box-shadow .25s ease;
}
.site-header.scrolled{
  background:#fff;
  box-shadow:0 6px 18px rgba(16,16,36,.08);
}
.nav-grid{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:16px;
  height:72px;
  transition:height .25s ease;
}
.site-header.scrolled .nav-grid{height:60px;}
.nav-side{
  display:flex;
  align-items:center;
  gap:22px;
  min-width:0;
}
.nav-left{justify-content:flex-start;}
.nav-right{justify-content:flex-end;}
.nav-link{
  position:relative;
  display:inline-block;
  padding:6px 2px;
  font-size:15px;
  font-weight:500;
  color:var(--text);
  white-space:nowrap;
  transition:color .2s ease;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  width:0;
  height:2px;
  background:var(--accent);
  transition:width .2s ease;
}
.nav-link:hover{color:var(--accent);}
.nav-link:hover::after{width:100%;}
.nav-link.active{color:var(--accent);font-weight:600;}
.nav-link.active::after{width:100%;}

.brand{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:4px 6px;
  min-width:120px;
  transition:transform .2s ease;
}
.brand:hover{transform:translateY(-1px);}
.brand-mark{
  width:36px;
  height:36px;
  border-radius:10px;
  background:var(--ink);
  color:#fff;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:15px;
  flex:0 0 auto;
}
.brand-text{
  font-size:19px;
  font-weight:800;
  letter-spacing:-.01em;
  color:var(--ink);
  line-height:1.2;
}
.brand-text span{color:var(--accent);}

.btn-star{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border:0;
  border-radius:var(--r-btn);
  background:var(--accent);
  color:#fff;
  font-size:15px;
  font-weight:600;
  white-space:nowrap;
  transition:transform .2s ease,background .2s ease,box-shadow .2s ease;
}
.btn-star:hover{
  background:#138A7E;
  transform:translateY(-2px);
  box-shadow:0 10px 20px rgba(22,158,144,.24);
  color:#fff;
}
.btn-star:active{transform:translateY(0);box-shadow:none;}
.btn-star:focus-visible{outline:2px solid var(--accent-bright);outline-offset:2px;}
.btn-star.btn-lg{height:48px;padding:0 26px;font-size:16px;}
.btn-star.btn-block{width:100%;}

.btn-line{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border:1.5px solid var(--ink);
  border-radius:var(--r-btn);
  background:transparent;
  color:var(--ink);
  font-size:15px;
  font-weight:600;
  transition:color .2s ease,border-color .2s ease,transform .2s ease;
}
.btn-line:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px);}
.btn-line:active{transform:translateY(0);}

.btn-ghost{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--accent-deep);
  font-size:14px;
  font-weight:600;
  transition:color .2s ease;
}
.btn-ghost i{transition:transform .2s ease;}
.btn-ghost:hover{color:var(--accent);}
.btn-ghost:hover i{transform:translateX(3px);}

/* mobile nav */
.mobile-bar{display:none;}
.mobile-panel{display:none;}
@media (max-width:991.98px){
  .nav-grid{display:none;}
  .mobile-bar{
    display:grid;
    grid-template-columns:44px 1fr auto;
    align-items:center;
    gap:8px;
    height:60px;
  }
  .burger{
    width:44px;
    height:44px;
    border:1px solid var(--line);
    border-radius:10px;
    background:#fff;
    color:var(--ink);
    display:inline-flex;
    align-items:center;
    justify-content:center;
    font-size:17px;
    transition:border-color .2s ease,color .2s ease;
  }
  .burger:hover{border-color:var(--accent);color:var(--accent);}
  .brand--mobile{justify-self:center;min-width:0;}
  .brand--mobile .brand-mark{width:30px;height:30px;font-size:13px;border-radius:8px;}
  .brand--mobile .brand-text{font-size:16px;}
  .mobile-bar .btn-star{height:40px;padding:0 14px;font-size:14px;}

  .mobile-panel{
    display:none;
    position:fixed;
    left:0;
    right:0;
    top:60px;
    background:#fff;
    border-top:1px solid var(--line);
    box-shadow:0 18px 30px rgba(16,16,36,.12);
    padding:12px 24px 28px;
    max-height:calc(100vh - 60px);
    overflow-y:auto;
    z-index:1031;
  }
  .mobile-panel.open{display:block;}
  .mobile-panel .nav-link{
    display:block;
    padding:14px 4px;
    font-size:16px;
    border-bottom:1px solid var(--line);
  }
  .mobile-panel .nav-link::after{display:none;}
  .mobile-panel .nav-link.active{color:var(--accent);}
  .mobile-panel .btn-star{margin-top:20px;width:100%;height:48px;}
  body.nav-lock{overflow:hidden;}
}

/* ============ PAGE HERO ============ */
.page-hero{
  position:relative;
  overflow:hidden;
  background:#fff;
  border-bottom:1px solid var(--line);
  padding:22px 0 58px;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(circle,rgba(36,30,78,.9) 1px,transparent 1px);
  background-size:22px 22px;
  opacity:.05;
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:1;}

.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--muted);
  margin-bottom:26px;
}
.crumbs a{transition:color .2s ease;}
.crumbs a:hover{color:var(--accent);}
.crumbs .sep{color:#C3C7D6;}
.crumbs .current{color:var(--text);font-weight:500;}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:4px 10px;
  border-radius:var(--r-badge);
  background:var(--accent-soft);
  color:var(--accent-deep);
  font-size:12px;
  font-weight:600;
  letter-spacing:.02em;
}
.eyebrow i{font-size:11px;}

.hero-title{
  font-size:44px;
  line-height:1.25;
  font-weight:800;
  letter-spacing:-.01em;
  color:var(--ink);
  margin-top:16px;
}
.hero-lead{
  margin-top:16px;
  max-width:760px;
  font-size:17px;
  line-height:1.85;
  color:var(--muted);
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:30px;
}
@media (max-width:767.98px){
  .page-hero{padding:18px 0 44px;}
  .hero-title{font-size:28px;}
  .hero-lead{font-size:15.5px;}
  .hero-actions .btn-star,.hero-actions .btn-line{width:100%;}
}

/* ============ SECTION ============ */
.section{padding:88px 0;}
.section--tight{padding:64px 0 88px;}
.section--paper{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{margin-bottom:36px;}
.section-head .kicker{
  display:inline-block;
  font-size:13px;
  font-weight:600;
  color:var(--accent-deep);
  letter-spacing:.04em;
  margin-bottom:10px;
}
.section-title{
  font-size:32px;
  line-height:1.35;
  font-weight:800;
  letter-spacing:-.01em;
  color:var(--ink);
}
.section-sub{
  margin-top:12px;
  max-width:720px;
  font-size:15.5px;
  line-height:1.85;
  color:var(--muted);
}
@media (max-width:991.98px){
  .section{padding:64px 0;}
  .section--tight{padding:48px 0 64px;}
  .section-title{font-size:24px;}
}
@media (max-width:575.98px){
  .section{padding:48px 0;}
  .section--tight{padding:36px 0 48px;}
}

/* ============ COMPARE TABLE ============ */
.table-wrap{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow);
  overflow-x:auto;
  -webkit-overflow-scrolling:touch;
}
.compare-table{
  width:100%;
  min-width:660px;
  border-collapse:collapse;
  font-variant-numeric:tabular-nums;
}
.compare-table thead th{
  position:relative;
  background:var(--ink-deep);
  color:#fff;
  font-size:13px;
  font-weight:600;
  padding:16px 18px;
  text-align:center;
  white-space:nowrap;
}
.compare-table thead th:first-child{text-align:left;}
.compare-table thead th.col-reco::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:3px;
  background:var(--accent);
}
.compare-table thead th.col-reco .reco-badge{
  display:inline-block;
  margin-left:8px;
  padding:2px 8px;
  border-radius:var(--r-badge);
  background:var(--gold);
  color:#2B1B00;
  font-size:11px;
  font-weight:700;
  vertical-align:middle;
}
.compare-table tbody td{
  height:56px;
  padding:10px 18px;
  border-top:1px solid var(--line);
  font-size:15px;
  text-align:center;
  color:var(--text);
  vertical-align:middle;
}
.compare-table tbody td:first-child{
  text-align:left;
  font-weight:600;
  color:var(--ink);
  white-space:nowrap;
  background:#fff;
}
.compare-table tbody tr:nth-child(even) td{background:#F7F8FC;}
.compare-table tbody tr:nth-child(even) td:first-child{background:#F7F8FC;}
.compare-table tbody td.col-reco{background:var(--accent-soft);}
.compare-table tbody tr:nth-child(even) td.col-reco{background:#DDF4F1;}
.mark-yes{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:20px;
  height:20px;
  border-radius:50%;
  background:var(--accent);
  color:#fff;
  font-size:10px;
}
.mark-no{color:#C3C7D6;font-weight:600;}
.compare-table tbody tr:hover td{background:#F1F3FA;}
.compare-table tbody tr:hover td.col-reco{background:#D6F1ED;}
.table-foot{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  margin-top:24px;
}
.table-note{
  font-size:13px;
  color:var(--muted);
  max-width:640px;
}
@media (max-width:767.98px){
  .compare-table thead th:first-child,
  .compare-table tbody td:first-child{
    position:sticky;
    left:0;
    z-index:2;
    box-shadow:1px 0 0 var(--line);
  }
  .compare-table thead th:first-child{z-index:3;}
  .table-foot .btn-star{width:100%;}
}

/* ============ GRADE CARDS ============ */
.grade-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:var(--gutter);
}
.grade-card{
  display:flex;
  flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow);
  overflow:hidden;
  transition:box-shadow .25s ease,transform .25s ease,border-color .25s ease;
}
.grade-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
  border-color:rgba(33,199,180,.35);
}
.grade-media{
  position:relative;
  aspect-ratio:16/10;
  overflow:hidden;
}
.grade-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  border-radius:0;
}
.grade-tag{
  position:absolute;
  top:14px;
  left:14px;
  padding:4px 10px;
  border-radius:var(--r-badge);
  background:rgba(18,18,43,.82);
  color:#fff;
  font-size:12px;
  font-weight:600;
}
.grade-tag.is-gold{background:var(--gold);color:#2B1B00;}
.grade-body{
  padding:24px 26px 26px;
  display:flex;
  flex-direction:column;
  flex:1 1 auto;
}
.grade-name{
  font-size:20px;
  font-weight:700;
  color:var(--ink);
  letter-spacing:-.01em;
}
.grade-desc{
  margin-top:8px;
  font-size:14.5px;
  color:var(--muted);
  line-height:1.8;
}
.grade-points{
  margin-top:16px;
  display:flex;
  flex-direction:column;
  gap:10px;
}
.grade-points li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:14.5px;
  color:var(--text);
}
.grade-points i{
  color:var(--accent);
  font-size:12px;
  margin-top:6px;
  flex:0 0 auto;
}
.grade-link{
  margin-top:auto;
  padding-top:20px;
}
@media (max-width:991.98px){
  .grade-grid{grid-template-columns:1fr;}
}

/* ============ CHECK STEPS ============ */
.step-panel{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow);
  padding:8px 26px;
}
.step-row{
  display:grid;
  grid-template-columns:64px 1fr;
  gap:20px;
  padding:24px 0;
  border-bottom:1px solid var(--line);
  align-items:start;
}
.step-row:last-child{border-bottom:0;}
.step-num{
  font-size:26px;
  font-weight:800;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  line-height:1.3;
  letter-spacing:-.02em;
}
.step-title{
  font-size:18px;
  font-weight:700;
  color:var(--ink);
}
.step-text{
  margin-top:6px;
  font-size:15px;
  color:var(--muted);
  line-height:1.85;
  max-width:820px;
}
@media (max-width:767.98px){
  .step-panel{padding:4px 18px;}
  .step-row{grid-template-columns:44px 1fr;gap:14px;padding:20px 0;}
  .step-num{font-size:21px;}
  .step-title{font-size:16.5px;}
  .step-text{font-size:14.5px;}
}

/* ============ FAQ ============ */
.faq-list{
  display:flex;
  flex-direction:column;
  gap:12px;
  max-width:900px;
}
.faq-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:12px;
  box-shadow:var(--shadow);
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:rgba(33,199,180,.35);}
.faq-item summary{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:16px 20px;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  cursor:pointer;
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";
  font-size:20px;
  font-weight:500;
  color:var(--accent);
  line-height:1;
  transition:transform .2s ease;
}
.faq-item[open]{
  border-color:rgba(33,199,180,.5);
  box-shadow:inset 3px 0 0 var(--accent),var(--shadow);
}
.faq-item[open] summary{color:var(--accent-deep);}
.faq-item[open] summary::after{content:"−";}
.faq-body{
  padding:0 20px 18px;
  font-size:15px;
  line-height:1.8;
  color:var(--muted);
  border-top:1px solid var(--line);
  padding-top:14px;
  margin-top:0;
}

/* ============ CTA BAND ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  background:var(--ink-deep);
  border-radius:20px;
  padding:52px 48px;
  color:#fff;
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(circle,rgba(255,255,255,.9) 1px,transparent 1px);
  background-size:24px 24px;
  opacity:.06;
  pointer-events:none;
}
.cta-grid{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  align-items:start;
}
.cta-title{
  font-size:30px;
  line-height:1.35;
  font-weight:800;
  letter-spacing:-.01em;
  color:#fff;
}
.cta-sub{
  margin-top:14px;
  font-size:15px;
  line-height:1.85;
  color:rgba(255,255,255,.72);
  max-width:420px;
}
.cta-points{
  margin-top:26px;
  display:flex;
  flex-direction:column;
  gap:12px;
}
.cta-points li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:14.5px;
  color:rgba(255,255,255,.86);
}
.cta-points i{color:var(--accent-bright);font-size:12px;margin-top:6px;}

.lead-form{
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r-card);
  padding:26px;
}
.form-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
}
.form-field{margin-bottom:16px;}
.form-field:last-of-type{margin-bottom:20px;}
.form-label{
  display:block;
  font-size:13px;
  font-weight:500;
  color:rgba(255,255,255,.86);
  margin-bottom:6px;
}
.form-control,
.form-select{
  width:100%;
  height:44px;
  padding:0 14px;
  border:1.5px solid #E1E4EF;
  border-radius:10px;
  background:#fff;
  color:var(--ink);
  font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
textarea.form-control{
  height:auto;
  padding:12px 14px;
  line-height:1.7;
  resize:vertical;
  min-height:96px;
}
.form-control::placeholder{color:#9AA0B5;}
.form-control:focus,
.form-select:focus{
  outline:none;
  border-color:var(--accent);
  box-shadow:0 0 0 4px rgba(33,199,180,.16);
}
.form-hint{
  margin-top:10px;
  font-size:12px;
  color:rgba(255,255,255,.6);
}
.form-msg{
  margin-top:12px;
  font-size:13px;
  color:var(--accent-bright);
  display:none;
}
.form-msg.show{display:block;}

@media (max-width:991.98px){
  .cta-band{padding:36px 24px;}
  .cta-grid{grid-template-columns:1fr;gap:32px;}
  .cta-title{font-size:24px;}
}
@media (max-width:575.98px){
  .form-row{grid-template-columns:1fr;gap:0;}
  .lead-form{padding:20px;}
}

/* ============ FOOTER ============ */
.site-footer{
  background:var(--ink-deep);
  color:rgba(255,255,255,.72);
  padding:64px 0 0;
  margin-top:88px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:32px;
  padding-bottom:44px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:16px;
}
.footer-brand .brand-mark{background:var(--accent);}
.footer-brand-text{
  font-size:18px;
  font-weight:800;
  color:#fff;
  letter-spacing:-.01em;
}
.footer-brand-text span{color:var(--accent-bright);}
.footer-about{
  font-size:14px;
  line-height:1.85;
  color:rgba(255,255,255,.62);
  max-width:360px;
}
.footer-contact{
  margin-top:16px;
  font-size:13px;
  line-height:1.9;
  color:rgba(255,255,255,.5);
}
.footer-col h4{
  font-size:14px;
  font-weight:700;
  color:#fff;
  margin-bottom:16px;
  letter-spacing:.02em;
}
.footer-col a{
  display:block;
  font-size:14px;
  line-height:1.8;
  padding:5px 0;
  color:rgba(255,255,255,.64);
  transition:color .2s ease,transform .2s ease;
}
.footer-col a:hover{color:var(--accent-bright);transform:translateX(3px);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:space-between;
  align-items:center;
  font-size:13px;
  color:rgba(255,255,255,.48);
}
@media (max-width:991.98px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .site-footer{padding-top:48px;margin-top:64px;}
}
@media (max-width:575.98px){
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category2 */
:root{
  --ink:#241E4E;
  --ink-deep:#12122B;
  --accent:#169E90;
  --accent-lite:#21C7B4;
  --accent-soft:#E6F8F6;
  --accent-deep:#12786E;
  --gold:#F2A93B;
  --bg:#F5F6FA;
  --card:#FFFFFF;
  --line:#E7E9F2;
  --text:#2A2C3D;
  --muted:#6B6F85;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-1:0 2px 8px rgba(16,16,36,.06);
  --shadow-2:0 10px 24px rgba(16,16,36,.10);
  --gutter:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.78;
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
button{font-family:inherit;}
ul{list-style:none;margin:0;padding:0;}
h1,h2,h3,h4{margin:0;letter-spacing:-0.01em;color:var(--ink);}
p{margin:0;}
:focus-visible{outline:2px solid var(--accent-lite);outline-offset:2px;border-radius:4px;}
.container{
  width:100%;
  max-width:1200px;
  margin-left:auto;
  margin-right:auto;
  padding-left:24px;
  padding-right:24px;
}
@media (min-width:1400px){ .container{max-width:1240px;} }

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(255,255,255,.93);
  border-bottom:1px solid var(--line);
  transition:background .25s ease,box-shadow .25s ease;
}
.site-header.is-stuck{background:#fff;box-shadow:0 4px 18px rgba(16,16,36,.09);}
.nav-wrap{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:18px;
  height:72px;
  transition:height .25s ease;
}
.site-header.is-stuck .nav-wrap{height:60px;}
.nav-left{justify-self:start;}
.nav-right{justify-self:end;}
.nav-side{display:flex;align-items:center;gap:26px;}
.nav-right{gap:20px;}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:0;
  font-size:15px;
  font-weight:500;
  color:var(--text);
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;
  bottom:6px;
  width:0;
  height:2px;
  border-radius:2px;
  background:var(--accent);
  transition:width .2s ease;
}
.nav-link:hover{color:var(--accent);}
.nav-link:hover::after{width:100%;}
.nav-link.active{color:var(--accent);font-weight:600;}
.nav-link.active::after{width:100%;}
.brand{display:inline-flex;align-items:center;gap:10px;justify-self:center;min-height:44px;}
.brand-mark{
  display:grid;
  place-items:center;
  width:34px;height:34px;
  border-radius:10px;
  background:var(--ink);
  color:var(--gold);
  font-size:14px;
  flex:none;
}
.brand-text{
  font-size:17px;
  font-weight:700;
  color:var(--ink);
  letter-spacing:-0.01em;
  white-space:nowrap;
}
.brand-text span{color:var(--accent);}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:40px;
  padding:0 20px;
  border:1.5px solid transparent;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  line-height:1;
  cursor:pointer;
  transition:transform .18s ease,background .18s ease,color .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 2px 8px rgba(22,158,144,.24);}
.btn-primary:hover{background:#12897d;color:#fff;transform:translateY(-2px);box-shadow:0 10px 22px rgba(22,158,144,.28);}
.btn-primary:active{transform:translateY(0);box-shadow:0 2px 8px rgba(22,158,144,.24);}
.btn-secondary{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-secondary:hover{color:var(--accent);border-color:var(--accent);transform:translateY(-2px);}
.btn-secondary:active{transform:translateY(0);}
.btn-sm{height:36px;padding:0 16px;font-size:14px;}
.btn-lg{height:48px;padding:0 28px;font-size:16px;}
.btn-block{width:100%;}
.btn:disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none;}

.nav-toggle{
  display:none;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:4px;
  width:44px;height:44px;
  padding:0;
  border:1px solid var(--line);
  border-radius:10px;
  background:#fff;
  justify-self:start;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform .2s ease,opacity .2s ease;}
.nav-toggle.is-active span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle.is-active span:nth-child(2){opacity:0;}
.nav-toggle.is-active span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

.mobile-panel{
  position:fixed;
  top:64px;left:0;right:0;bottom:0;
  background:#fff;
  padding:16px 24px 40px;
  overflow-y:auto;
  opacity:0;
  visibility:hidden;
  transform:translateY(-10px);
  transition:opacity .22s ease,transform .22s ease,visibility .22s ease;
  border-top:1px solid var(--line);
}
.mobile-panel.is-open{opacity:1;visibility:visible;transform:none;}
.mobile-panel a{
  display:flex;
  align-items:center;
  min-height:52px;
  font-size:16px;
  font-weight:500;
  color:var(--text);
  border-bottom:1px solid var(--line);
}
.mobile-panel a.active{color:var(--accent);font-weight:600;}
.mobile-panel .btn{margin-top:20px;border-bottom:none;}
body.nav-open{overflow:hidden;}

@media (max-width:991.98px){
  .nav-side{display:none;}
  .nav-toggle{display:flex;}
  .nav-wrap{grid-template-columns:44px 1fr 44px;height:64px;gap:10px;}
  .nav-right .nav-link{display:none;}
  .nav-right .btn{height:36px;padding:0 14px;font-size:14px;}
  .brand-text{font-size:15px;}
  .brand-mark{width:30px;height:30px;font-size:12px;}
}

/* ---------- 页面头部 ---------- */
.page-hero{
  position:relative;
  padding:60px 0 64px;
  background:var(--ink-deep);
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(100deg,rgba(18,18,43,.96) 0%,rgba(18,18,43,.82) 55%,rgba(18,18,43,.66) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(255,255,255,.55) 1px,transparent 1px);
  background-size:26px 26px;
  opacity:.05;
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2;}
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:rgba(255,255,255,.6);
  margin-bottom:22px;
}
.crumb a{color:rgba(255,255,255,.74);}
.crumb a:hover{color:#fff;}
.crumb .sep{opacity:.45;}
.crumb .current{color:#fff;}
.page-hero h1{
  font-size:44px;
  line-height:1.26;
  font-weight:800;
  color:#fff;
  max-width:22ch;
  margin-bottom:18px;
}
.page-hero .lead{
  font-size:17px;
  line-height:1.8;
  color:rgba(255,255,255,.78);
  max-width:660px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.hero-tags span{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:6px 12px;
  border-radius:6px;
  font-size:13px;
  color:rgba(255,255,255,.86);
  background:rgba(255,255,255,.09);
  border:1px solid rgba(255,255,255,.14);
}
.hero-tags i{color:var(--accent-lite);font-size:12px;}

@media (max-width:991.98px){
  .page-hero{padding:44px 0 48px;}
  .page-hero h1{font-size:34px;}
  .page-hero .lead{font-size:16px;}
}
@media (max-width:575.98px){
  .page-hero{padding:34px 0 38px;}
  .page-hero h1{font-size:27px;}
  .container{padding-left:16px;padding-right:16px;}
}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0;}
.section--tight{padding:72px 0;}
.section--paper{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:720px;margin-bottom:42px;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 12px;
  margin-bottom:14px;
  border-radius:6px;
  background:var(--accent-soft);
  color:var(--accent-deep);
  font-size:13px;
  font-weight:600;
}
.section-head h2{font-size:32px;font-weight:700;line-height:1.32;margin-bottom:12px;}
.section-head p{color:var(--muted);font-size:16px;line-height:1.8;}
@media (max-width:991.98px){
  .section{padding:64px 0;}
  .section--tight{padding:56px 0;}
  .section-head{margin-bottom:32px;}
  .section-head h2{font-size:26px;}
}
@media (max-width:767.98px){
  .section{padding:48px 0;}
  .section--tight{padding:44px 0;}
  .section-head h2{font-size:23px;}
}

/* ---------- Bento 栅格 ---------- */
.bento{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  grid-auto-rows:minmax(212px,auto);
  gap:20px;
}
.bento-card{
  position:relative;
  display:flex;
  flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:26px;
  box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.bento-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-2);
  border-color:rgba(33,199,180,.35);
}
.bento-card:hover h3{color:var(--accent-deep);}
.bento-card h3{font-size:17px;font-weight:700;margin-bottom:10px;transition:color .2s ease;}
.bento-card p{font-size:14.5px;line-height:1.72;color:var(--muted);}
.bento-icon{
  display:grid;
  place-items:center;
  width:44px;height:44px;
  margin-bottom:18px;
  border-radius:12px;
  background:var(--accent-soft);
  color:var(--accent-deep);
  font-size:18px;
  flex:none;
}
.bento-card--xl{
  grid-column:span 2;
  grid-row:span 2;
  background:var(--ink-deep);
  border-color:var(--ink-deep);
  color:#fff;
  padding:32px;
}
.bento-card--xl:hover{border-color:rgba(33,199,180,.45);}
.bento-card--xl h3{color:#fff;font-size:23px;margin-bottom:12px;}
.bento-card--xl:hover h3{color:#fff;}
.bento-card--xl p{color:rgba(255,255,255,.74);font-size:15px;line-height:1.78;max-width:42ch;}
.bento-card--xl .bento-icon{background:rgba(255,255,255,.1);color:var(--accent-lite);}
.bento-xl-img{margin-top:auto;padding-top:26px;}
.bento-xl-img img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  border-radius:var(--radius-img);
}
.bento-xl-img figcaption{
  margin-top:10px;
  font-size:12px;
  color:rgba(255,255,255,.5);
}
.link-more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:20px;
  font-size:14px;
  font-weight:600;
  color:var(--accent);
  transition:gap .2s ease,color .2s ease;
}
.link-more:hover{gap:10px;color:var(--accent-deep);}
.bento-card--xl .link-more{color:var(--accent-lite);}
.bento-card--xl .link-more:hover{color:#fff;}

@media (max-width:991.98px){
  .bento{grid-template-columns:repeat(2,1fr);}
  .bento-card--xl{grid-column:span 2;grid-row:span 1;padding:26px;}
  .bento-card--xl h3{font-size:20px;}
}
@media (max-width:575.98px){
  .bento{grid-template-columns:1fr;grid-auto-rows:auto;}
  .bento-card{padding:22px;}
  .bento-card--xl{grid-column:span 1;}
}

/* ---------- 图文分栏 ---------- */
.split{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:center;
}
.split + .split{margin-top:80px;}
.split-media{position:relative;}
.split-media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:var(--radius-img);
  box-shadow:var(--shadow-1);
}
.split-media figcaption{margin-top:12px;font-size:12px;color:var(--muted);}
.split.reverse .split-media{order:2;}
.split-body h3{
  font-size:24px;
  font-weight:700;
  line-height:1.4;
  margin-bottom:14px;
}
.split-body p{color:var(--muted);font-size:16px;line-height:1.82;}
.check-list{margin-top:22px;display:grid;gap:12px;}
.check-list li{
  position:relative;
  padding-left:30px;
  font-size:15.5px;
  color:var(--text);
  line-height:1.72;
}
.check-list li i{
  position:absolute;
  left:0;
  top:5px;
  color:var(--accent);
  font-size:14px;
}
@media (max-width:991.98px){
  .split{grid-template-columns:1fr;gap:28px;}
  .split + .split{margin-top:56px;}
  .split.reverse .split-media{order:0;}
  .split-body h3{font-size:21px;}
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto;}
.faq-accordion .accordion-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:12px;
  margin-bottom:12px;
  overflow:hidden;
  box-shadow:var(--shadow-1);
}
.faq-accordion .accordion-item:last-child{margin-bottom:0;}
.faq-accordion .accordion-button{
  display:flex;
  align-items:center;
  gap:12px;
  width:100%;
  padding:18px 20px;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  background:#fff;
  border:0;
  border-left:3px solid transparent;
  border-radius:0;
  box-shadow:none;
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.faq-accordion .accordion-button:not(.collapsed){
  color:var(--accent-deep);
  border-left-color:var(--accent);
  background:#fff;
  box-shadow:none;
}
.faq-accordion .accordion-button:focus{box-shadow:none;}
.faq-accordion .accordion-button::after{
  content:"+";
  margin-left:auto;
  width:auto;height:auto;
  font-size:20px;
  line-height:1;
  color:var(--accent-deep);
  background-image:none !important;
  transform:none;
  transition:transform .2s ease;
}
.faq-accordion .accordion-button:not(.collapsed)::after{content:"−";transform:none;}
.faq-accordion .accordion-body{
  padding:0 20px 20px;
  font-size:15px;
  line-height:1.82;
  color:var(--muted);
  border-left:3px solid transparent;
}
@media (max-width:575.98px){
  .faq-accordion .accordion-button{font-size:15px;padding:16px;}
  .faq-accordion .accordion-body{padding:0 16px 18px;font-size:14.5px;}
}

/* ---------- 意向登记 CTA ---------- */
.cta-band{
  position:relative;
  background:var(--ink-deep);
  padding:88px 0;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(255,255,255,.5) 1px,transparent 1px);
  background-size:28px 28px;
  opacity:.05;
  pointer-events:none;
}
.cta-band .container{position:relative;z-index:2;}
.cta-inner{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:56px;
  align-items:start;
}
.cta-copy h2{color:#fff;font-size:32px;line-height:1.34;margin-bottom:16px;}
.cta-copy p{color:rgba(255,255,255,.72);font-size:16px;line-height:1.8;max-width:44ch;}
.cta-points{margin-top:26px;display:grid;gap:14px;}
.cta-points li{
  position:relative;
  padding-left:30px;
  color:rgba(255,255,255,.86);
  font-size:15px;
  line-height:1.7;
}
.cta-points li i{position:absolute;left:0;top:4px;color:var(--accent-lite);font-size:14px;}

.lead-form{
  background:#fff;
  border-radius:var(--radius-card);
  padding:28px;
  box-shadow:0 16px 40px rgba(6,6,20,.28);
}
.form-field{margin-bottom:16px;}
.form-field label{
  display:block;
  font-size:13px;
  font-weight:500;
  color:var(--ink);
  margin-bottom:7px;
}
.form-field .req{color:#D9534F;margin-left:3px;}
.form-control,
.form-select{
  width:100%;
  height:44px;
  padding:10px 14px;
  font-size:15px;
  color:var(--text);
  background:#fff;
  border:1.5px solid #E1E4EF;
  border-radius:var(--radius-btn);
  transition:border-color .18s ease,box-shadow .18s ease;
}
textarea.form-control{height:auto;min-height:96px;resize:vertical;line-height:1.7;}
.form-control:focus,
.form-select:focus{
  outline:none;
  border-color:var(--accent);
  box-shadow:0 0 0 4px rgba(33,199,180,.16);
}
.form-hint{
  margin-top:14px;
  font-size:12.5px;
  color:var(--muted);
  line-height:1.7;
}
.form-note{
  display:none;
  margin-top:14px;
  padding:10px 14px;
  border-radius:10px;
  background:var(--accent-soft);
  color:var(--accent-deep);
  font-size:13.5px;
  line-height:1.7;
}
.form-note.is-show{display:block;}
@media (max-width:991.98px){
  .cta-band{padding:64px 0;}
  .cta-inner{grid-template-columns:1fr;gap:32px;}
  .cta-copy h2{font-size:26px;}
}
@media (max-width:575.98px){
  .cta-band{padding:48px 0;}
  .lead-form{padding:22px;}
  .cta-copy h2{font-size:23px;}
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-deep);color:rgba(255,255,255,.72);padding:64px 0 0;}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:32px;
  padding-bottom:44px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.1);color:var(--gold);}
.footer-brand-text{font-size:17px;font-weight:700;color:#fff;letter-spacing:-0.01em;}
.footer-brand-text span{color:var(--accent-lite);}
.footer-about{font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);max-width:34ch;margin-bottom:14px;}
.footer-contact{font-size:13.5px;line-height:1.9;color:rgba(255,255,255,.5);}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer-col a{
  display:flex;
  align-items:center;
  min-height:36px;
  font-size:14px;
  color:rgba(255,255,255,.66);
}
.footer-col a:hover{color:var(--accent-lite);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  padding:20px 0;
  border-top:1px solid rgba(255,255,255,.1);
  font-size:13px;
  color:rgba(255,255,255,.46);
}
@media (max-width:991.98px){
  .site-footer{padding-top:52px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:575.98px){
  .footer-grid{grid-template-columns:1fr;gap:24px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}

/* roulang page: category4 */
:root{
    --ink:#241E4E;
    --ink-deep:#12122B;
    --teal:#169E90;
    --teal-bright:#21C7B4;
    --teal-soft:#E6F8F6;
    --teal-text:#12786E;
    --gold:#F2A93B;
    --bg:#F5F6FA;
    --card:#FFFFFF;
    --line:#E7E9F2;
    --text:#2A2C3D;
    --muted:#6B6F85;
    --radius-card:14px;
    --radius-img:12px;
    --radius-btn:10px;
    --radius-badge:6px;
    --shadow-sm:0 2px 8px rgba(16,16,36,.06);
    --shadow-md:0 10px 24px rgba(16,16,36,.10);
    --gutter:24px;
    --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;}
  body{
    margin:0;
    font-family:var(--font);
    font-size:16px;
    line-height:1.78;
    color:var(--text);
    background:var(--bg);
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{color:var(--teal-text);text-decoration:none;transition:color .2s ease, opacity .2s ease;}
  a:hover{color:var(--teal);}
  h1,h2,h3,h4,h5{margin:0;color:var(--ink);font-weight:800;letter-spacing:-0.01em;line-height:1.3;}
  p{margin:0 0 1.1em;}
  p:last-child{margin-bottom:0;}
  ul,ol{margin:0;padding:0;list-style:none;}
  button{font-family:inherit;}
  :focus-visible{outline:2px solid var(--teal-bright);outline-offset:2px;border-radius:4px;}

  .container{
    width:100%;
    max-width:1200px;
    margin:0 auto;
    padding-left:24px;
    padding-right:24px;
  }
  @media (min-width:1400px){
    .container{max-width:1240px;}
  }
  @media (max-width:575px){
    .container{padding-left:16px;padding-right:16px;}
  }

  /* ---------- 顶部导航 ---------- */
  .site-header{
    position:sticky;
    top:0;
    z-index:1000;
    background:rgba(255,255,255,.86);
    backdrop-filter:saturate(160%) blur(6px);
    border-bottom:1px solid var(--line);
    transition:background .25s ease, box-shadow .25s ease, border-color .25s ease;
  }
  .site-header.is-stuck{
    background:#fff;
    box-shadow:0 6px 20px rgba(16,16,36,.08);
    border-bottom-color:transparent;
  }
  .nav-grid{
    display:grid;
    grid-template-columns:1fr auto 1fr;
    align-items:center;
    gap:16px;
    height:72px;
    transition:height .25s ease;
  }
  .site-header.is-stuck .nav-grid{height:60px;}
  .nav-side{
    display:flex;
    align-items:center;
    gap:8px;
  }
  .nav-left{justify-content:flex-start;}
  .nav-right{justify-content:flex-end;}
  .nav-link{
    position:relative;
    display:inline-flex;
    align-items:center;
    min-height:44px;
    padding:0 12px;
    font-size:15px;
    font-weight:600;
    color:var(--ink);
    border-radius:8px;
    white-space:nowrap;
  }
  .nav-link::after{
    content:"";
    position:absolute;
    left:12px;
    right:12px;
    bottom:8px;
    height:2px;
    background:var(--teal);
    transform:scaleX(0);
    transform-origin:left center;
    transition:transform .2s ease;
    border-radius:2px;
  }
  .nav-link:hover{color:var(--teal);}
  .nav-link:hover::after{transform:scaleX(1);}
  .nav-link.active{color:var(--teal-text);}
  .nav-link.active::after{transform:scaleX(1);}

  .brand{
    display:inline-flex;
    align-items:center;
    gap:10px;
    min-width:120px;
    justify-content:center;
    padding:6px 8px;
  }
  .brand-mark{
    width:34px;height:34px;
    display:inline-flex;align-items:center;justify-content:center;
    border-radius:10px;
    background:linear-gradient(150deg,var(--ink) 0%, #3A3170 100%);
    color:#fff;
    font-size:15px;
    box-shadow:var(--shadow-sm);
    flex:0 0 auto;
  }
  .brand-text{
    font-size:19px;
    font-weight:800;
    color:var(--ink);
    letter-spacing:-0.01em;
    white-space:nowrap;
  }
  .brand-text span{color:var(--teal);}

  .btn-main{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    min-height:44px;
    padding:0 22px;
    font-size:15px;
    font-weight:700;
    color:#fff;
    background:var(--teal);
    border:1px solid var(--teal);
    border-radius:var(--radius-btn);
    transition:transform .2s ease, background .2s ease, box-shadow .2s ease;
    white-space:nowrap;
  }
  .btn-main:hover{color:#fff;background:#128a7e;transform:translateY(-2px);box-shadow:var(--shadow-md);}
  .btn-main:active{transform:translateY(0);box-shadow:var(--shadow-sm);}

  .nav-toggle{
    display:none;
    width:44px;height:44px;
    align-items:center;justify-content:center;
    background:#fff;
    border:1px solid var(--line);
    border-radius:10px;
    color:var(--ink);
    font-size:17px;
    cursor:pointer;
  }
  .mobile-panel{
    display:none;
    border-top:1px solid var(--line);
    background:#fff;
    padding:12px 0 20px;
  }
  .mobile-panel.open{display:block;}
  .mobile-panel .m-link{
    display:flex;
    align-items:center;
    justify-content:space-between;
    min-height:48px;
    padding:0 4px;
    font-size:16px;
    font-weight:600;
    color:var(--ink);
    border-bottom:1px solid var(--line);
  }
  .mobile-panel .m-link.active{color:var(--teal-text);}
  .mobile-panel .btn-main{width:100%;margin-top:16px;}
  body.no-scroll{overflow:hidden;}

  @media (max-width:991px){
    .nav-side{display:none;}
    .nav-grid{grid-template-columns:auto 1fr auto;height:64px;}
    .site-header.is-stuck .nav-grid{height:58px;}
    .nav-toggle{display:inline-flex;}
    .brand{justify-content:center;}
    .nav-right .btn-main{min-height:40px;padding:0 14px;font-size:13.5px;}
  }
  @media (max-width:400px){
    .brand-text{font-size:17px;}
    .nav-right .btn-main{padding:0 12px;}
  }

  /* ---------- 页面头部 ---------- */
  .page-head{
    position:relative;
    overflow:hidden;
    padding:44px 0 52px;
    background:#fff;
    border-bottom:1px solid var(--line);
  }
  .page-head::before{
    content:"";
    position:absolute;
    inset:0;
    background-image:
      radial-gradient(circle at 18% 22%, rgba(36,30,78,.06) 0 1px, transparent 1px),
      radial-gradient(circle at 62% 68%, rgba(36,30,78,.05) 0 1px, transparent 1px),
      radial-gradient(circle at 88% 18%, rgba(33,199,180,.06) 0 1px, transparent 1px);
    background-size:26px 26px, 34px 34px, 30px 30px;
    pointer-events:none;
  }
  .page-head .container{position:relative;z-index:1;}
  .breadcrumb-line{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:8px;
    font-size:13.5px;
    color:var(--muted);
    margin-bottom:18px;
  }
  .breadcrumb-line a{color:var(--muted);}
  .breadcrumb-line a:hover{color:var(--teal);}
  .breadcrumb-line .sep{opacity:.5;}
  .breadcrumb-line .current{color:var(--ink);font-weight:600;}

  .eyebrow{
    display:inline-flex;
    align-items:center;
    gap:8px;
    padding:5px 12px;
    border-radius:999px;
    background:var(--teal-soft);
    color:var(--teal-text);
    font-size:12.5px;
    font-weight:700;
    letter-spacing:.02em;
    margin-bottom:16px;
  }
  .page-head h1{
    font-size:44px;
    line-height:1.22;
    margin-bottom:14px;
    max-width:820px;
  }
  .page-head h1 em{
    font-style:normal;
    color:var(--teal);
  }
  .page-lead{
    font-size:16.5px;
    color:var(--muted);
    max-width:720px;
    margin:0;
  }
  .head-meta{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
    margin-top:24px;
  }
  .meta-chip{
    display:inline-flex;
    align-items:center;
    gap:7px;
    padding:7px 14px;
    background:var(--bg);
    border:1px solid var(--line);
    border-radius:999px;
    font-size:13px;
    color:var(--muted);
    font-weight:600;
  }
  .meta-chip i{color:var(--teal);font-size:12px;}

  @media (max-width:767px){
    .page-head{padding:30px 0 36px;}
    .page-head h1{font-size:28px;}
    .page-lead{font-size:15.5px;}
  }

  /* ---------- 通用板块 ---------- */
  .section{padding:88px 0;}
  .section.tight{padding:64px 0;}
  @media (max-width:991px){ .section{padding:64px 0;} .section.tight{padding:48px 0;} }
  @media (max-width:575px){ .section{padding:48px 0;} .section.tight{padding:40px 0;} }

  .section-head{
    display:flex;
    align-items:flex-end;
    justify-content:space-between;
    gap:24px;
    margin-bottom:36px;
    flex-wrap:wrap;
  }
  .section-head h2{font-size:32px;}
  .section-head .sub{
    margin:10px 0 0;
    color:var(--muted);
    font-size:15.5px;
    max-width:640px;
  }
  @media (max-width:767px){
    .section-head h2{font-size:24px;}
    .section-head{margin-bottom:26px;}
  }
  .link-more{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:14.5px;
    font-weight:700;
    color:var(--teal-text);
    white-space:nowrap;
  }
  .link-more i{transition:transform .2s ease;font-size:12px;}
  .link-more:hover i{transform:translateX(3px);}

  /* ---------- 快捷自助卡 ---------- */
  .quick-grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:var(--gutter);
  }
  @media (max-width:1199px){ .quick-grid{grid-template-columns:repeat(2,1fr);} }
  @media (max-width:575px){ .quick-grid{grid-template-columns:1fr;} }

  .quick-card{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    padding:26px 24px;
    box-shadow:var(--shadow-sm);
    transition:border-color .2s ease, transform .2s ease, box-shadow .2s ease;
    height:100%;
  }
  .quick-card:hover{
    border-color:rgba(33,199,180,.35);
    transform:translateY(-4px);
    box-shadow:var(--shadow-md);
  }
  .quick-card .q-icon{
    width:44px;height:44px;
    display:inline-flex;align-items:center;justify-content:center;
    border-radius:12px;
    background:var(--teal-soft);
    color:var(--teal-text);
    font-size:17px;
    margin-bottom:16px;
  }
  .quick-card h3{font-size:17.5px;margin-bottom:8px;}
  .quick-card p{font-size:14.5px;color:var(--muted);line-height:1.75;margin:0;}

  /* ---------- 帮助主体：目录 + FAQ ---------- */
  .help-wrap{
    display:grid;
    grid-template-columns:260px minmax(0,1fr);
    gap:40px;
    align-items:start;
  }
  @media (max-width:991px){
    .help-wrap{grid-template-columns:1fr;gap:24px;}
  }

  .toc-card{
    position:sticky;
    top:92px;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    padding:22px 18px;
    box-shadow:var(--shadow-sm);
  }
  .toc-card h3{
    font-size:14px;
    color:var(--muted);
    font-weight:700;
    letter-spacing:.04em;
    margin-bottom:14px;
    padding-left:6px;
  }
  .toc-list{display:flex;flex-direction:column;gap:4px;}
  .toc-list a{
    display:flex;
    align-items:center;
    gap:10px;
    min-height:44px;
    padding:8px 12px;
    border-radius:10px;
    font-size:14.5px;
    font-weight:600;
    color:var(--text);
    border-left:3px solid transparent;
    transition:background .2s ease,color .2s ease,border-color .2s ease;
  }
  .toc-list a i{
    font-size:12px;
    color:var(--teal);
    width:14px;
    text-align:center;
  }
  .toc-list a:hover{background:var(--bg);color:var(--teal-text);}
  .toc-list a.active{
    background:var(--teal-soft);
    color:var(--teal-text);
    border-left-color:var(--teal);
  }
  .toc-tip{
    margin-top:18px;
    padding-top:16px;
    border-top:1px dashed var(--line);
    font-size:13px;
    color:var(--muted);
    line-height:1.7;
  }

  @media (max-width:991px){
    .toc-card{
      position:static;
      padding:12px;
    }
    .toc-card h3{display:none;}
    .toc-list{
      flex-direction:row;
      gap:8px;
      overflow-x:auto;
      padding-bottom:4px;
      -webkit-overflow-scrolling:touch;
    }
    .toc-list a{
      flex:0 0 auto;
      border-left:none;
      border:1px solid var(--line);
      border-radius:999px;
      padding:0 16px;
      font-size:14px;
      white-space:nowrap;
    }
    .toc-list a.active{border-color:var(--teal);}
    .toc-tip{display:none;}
  }

  .faq-group{margin-bottom:44px;}
  .faq-group:last-child{margin-bottom:0;}
  .group-head{
    display:flex;
    align-items:center;
    gap:12px;
    margin-bottom:18px;
    scroll-margin-top:96px;
  }
  .group-num{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    width:34px;height:34px;
    border-radius:10px;
    background:var(--ink);
    color:#fff;
    font-size:13px;
    font-weight:800;
    font-variant-numeric:tabular-nums;
    flex:0 0 auto;
  }
  .group-head h2{font-size:22px;}
  .group-desc{
    font-size:14.5px;
    color:var(--muted);
    margin-bottom:18px;
  }

  .acc-item{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:12px;
    margin-bottom:12px;
    overflow:hidden;
    transition:border-color .2s ease, box-shadow .2s ease;
  }
  .acc-item:hover{border-color:rgba(33,199,180,.35);}
  .acc-item.open{
    border-color:rgba(33,199,180,.45);
    box-shadow:var(--shadow-sm);
    border-left:3px solid var(--teal);
  }
  .acc-btn{
    width:100%;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    min-height:56px;
    padding:16px 20px;
    background:transparent;
    border:0;
    text-align:left;
    font-size:16px;
    font-weight:600;
    color:var(--ink);
    cursor:pointer;
    transition:color .2s ease;
  }
  .acc-btn:hover{color:var(--teal-text);}
  .acc-item.open .acc-btn{color:var(--teal-text);}
  .acc-sign{
    position:relative;
    width:22px;height:22px;
    flex:0 0 auto;
    border-radius:50%;
    background:var(--bg);
    transition:background .2s ease, transform .2s ease;
  }
  .acc-sign::before,
  .acc-sign::after{
    content:"";
    position:absolute;
    top:50%;left:50%;
    background:var(--ink);
    border-radius:2px;
    transform:translate(-50%,-50%);
    transition:transform .25s ease, background .2s ease, opacity .25s ease;
  }
  .acc-sign::before{width:11px;height:2px;}
  .acc-sign::after{width:2px;height:11px;}
  .acc-item.open .acc-sign{background:var(--teal-soft);}
  .acc-item.open .acc-sign::before,
  .acc-item.open .acc-sign::after{background:var(--teal-text);}
  .acc-item.open .acc-sign::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}

  .acc-panel{
    max-height:0;
    overflow:hidden;
    transition:max-height .32s ease;
  }
  .acc-body{
    padding:0 20px 20px;
    font-size:15px;
    line-height:1.8;
    color:var(--text);
  }
  .acc-body ol{
    counter-reset:step;
    display:flex;
    flex-direction:column;
    gap:8px;
    margin:12px 0 0;
  }
  .acc-body ol li{
    position:relative;
    padding-left:28px;
    counter-increment:step;
    font-size:14.5px;
    color:var(--text);
  }
  .acc-body ol li::before{
    content:counter(step);
    position:absolute;
    left:0;top:2px;
    width:19px;height:19px;
    border-radius:50%;
    background:var(--teal-soft);
    color:var(--teal-text);
    font-size:11.5px;
    font-weight:800;
    display:flex;align-items:center;justify-content:center;
    font-variant-numeric:tabular-nums;
  }
  .acc-note{
    margin-top:14px;
    padding:12px 14px;
    background:var(--bg);
    border-left:3px solid var(--teal-bright);
    border-radius:8px;
    font-size:13.5px;
    color:var(--muted);
    line-height:1.7;
  }

  /* ---------- 图文说明 ---------- */
  .guide-grid{
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:var(--gutter);
  }
  @media (max-width:991px){ .guide-grid{grid-template-columns:1fr;} }

  .guide-card{
    display:grid;
    grid-template-columns:1fr 1fr;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    overflow:hidden;
    box-shadow:var(--shadow-sm);
  }
  .guide-card .g-text{padding:28px 24px;}
  .guide-card h3{font-size:19px;margin-bottom:10px;}
  .guide-card p{font-size:14.5px;color:var(--muted);line-height:1.78;margin:0 0 14px;}
  .guide-card ul{display:flex;flex-direction:column;gap:8px;}
  .guide-card ul li{
    position:relative;
    padding-left:20px;
    font-size:14px;
    color:var(--text);
  }
  .guide-card ul li::before{
    content:"";
    position:absolute;
    left:0;top:9px;
    width:7px;height:7px;
    border-radius:50%;
    background:var(--teal-bright);
  }
  .guide-card .g-img{
    position:relative;
    min-height:100%;
    background:#EAECF4;
  }
  .guide-card .g-img img{
    width:100%;height:100%;
    min-height:220px;
    object-fit:cover;
    aspect-ratio:4 / 5;
  }
  @media (max-width:1199px){
    .guide-card{grid-template-columns:1fr;}
    .guide-card .g-img{order:-1;}
    .guide-card .g-img img{aspect-ratio:16 / 9;min-height:0;}
  }

  /* ---------- CTA 表单带 ---------- */
  .cta-band{
    position:relative;
    overflow:hidden;
    background:var(--ink-deep);
    color:#EDEEF6;
    padding:76px 0;
  }
  .cta-band::before{
    content:"";
    position:absolute;
    inset:0;
    background-image:
      radial-gradient(circle at 12% 20%, rgba(255,255,255,.06) 0 1px, transparent 1px),
      radial-gradient(circle at 70% 62%, rgba(33,199,180,.10) 0 1px, transparent 1px);
    background-size:28px 28px, 38px 38px;
    pointer-events:none;
  }
  .cta-band .container{position:relative;z-index:1;}
  .cta-grid{
    display:grid;
    grid-template-columns:1fr 480px;
    gap:56px;
    align-items:start;
  }
  @media (max-width:1199px){
    .cta-grid{grid-template-columns:1fr;gap:36px;}
  }
  .cta-band h2{color:#fff;font-size:32px;margin-bottom:14px;}
  .cta-band .cta-sub{color:#A9ACC6;font-size:15.5px;margin-bottom:26px;max-width:520px;}
  .cta-points{display:flex;flex-direction:column;gap:14px;}
  .cta-points li{
    display:flex;
    align-items:flex-start;
    gap:12px;
    font-size:15px;
    color:#D6D8E8;
  }
  .cta-points i{
    color:var(--teal-bright);
    font-size:13px;
    margin-top:6px;
  }
  @media (max-width:767px){
    .cta-band{padding:52px 0;}
    .cta-band h2{font-size:24px;}
  }

  .lead-form{
    background:#fff;
    border-radius:16px;
    padding:28px 26px;
    box-shadow:0 18px 40px rgba(0,0,0,.22);
  }
  .lead-form h3{font-size:18px;margin-bottom:6px;}
  .lead-form .form-tip{
    font-size:13px;
    color:var(--muted);
    margin-bottom:18px;
  }
  .field{margin-bottom:16px;}
  .field label{
    display:block;
    font-size:13px;
    font-weight:600;
    color:var(--ink);
    margin-bottom:6px;
  }
  .field label .req{color:#D9534F;}
  .field input,
  .field select,
  .field textarea{
    width:100%;
    min-height:44px;
    padding:11px 14px;
    font-size:15px;
    font-family:inherit;
    color:var(--text);
    background:#fff;
    border:1.5px solid #E1E4EF;
    border-radius:10px;
    transition:border-color .2s ease, box-shadow .2s ease;
    appearance:none;
  }
  .field textarea{min-height:88px;resize:vertical;line-height:1.7;}
  .field select{
    background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath fill='%236B6F85' d='M6 8 0 0h12z'/%3E%3C/svg%3E");
    background-repeat:no-repeat;
    background-position:right 14px center;
    padding-right:34px;
  }
  .field input:focus,
  .field select:focus,
  .field textarea:focus{
    outline:none;
    border-color:var(--teal);
    box-shadow:0 0 0 4px rgba(33,199,180,.16);
  }
  .field.error input,
  .field.error select{border-color:#D9534F;}
  .err-msg{display:none;font-size:12px;color:#D9534F;margin-top:5px;}
  .field.error .err-msg{display:block;}
  .btn-submit{
    width:100%;
    min-height:48px;
    font-size:15.5px;
    font-weight:700;
    color:#fff;
    background:var(--teal);
    border:0;
    border-radius:var(--radius-btn);
    cursor:pointer;
    transition:background .2s ease, transform .2s ease, box-shadow .2s ease;
  }
  .btn-submit:hover{background:#128a7e;transform:translateY(-2px);box-shadow:0 10px 22px rgba(18,138,126,.35);}
  .btn-submit:active{transform:translateY(0);box-shadow:none;}
  .form-note{
    margin-top:12px;
    font-size:12.5px;
    color:var(--muted);
    line-height:1.7;
  }
  .form-ok{
    display:none;
    margin-top:14px;
    padding:12px 14px;
    border-radius:10px;
    background:var(--teal-soft);
    color:var(--teal-text);
    font-size:13.5px;
    font-weight:600;
  }
  .form-ok.show{display:block;}

  /* ---------- 页脚 ---------- */
  .site-footer{
    background:var(--ink-deep);
    color:#B9BCD1;
    padding:64px 0 0;
    font-size:14px;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.6fr 1fr 1fr 1fr;
    gap:32px;
    padding-bottom:44px;
  }
  @media (max-width:991px){
    .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  }
  @media (max-width:575px){
    .footer-grid{grid-template-columns:1fr;}
  }
  .footer-brand{
    display:flex;
    align-items:center;
    gap:10px;
    margin-bottom:16px;
  }
  .footer-brand .brand-mark{
    width:32px;height:32px;
    border-radius:9px;
    background:rgba(255,255,255,.10);
    color:var(--teal-bright);
  }
  .footer-brand-text{
    font-size:18px;
    font-weight:800;
    color:#fff;
    letter-spacing:-0.01em;
  }
  .footer-brand-text span{color:var(--teal-bright);}
  .footer-about{
    color:#9EA1BA;
    line-height:1.8;
    font-size:13.5px;
    margin-bottom:14px;
    max-width:360px;
  }
  .footer-contact{
    color:#7E819C;
    font-size:13px;
    line-height:1.8;
    margin:0;
  }
  .footer-col h4{
    color:#fff;
    font-size:14px;
    font-weight:700;
    margin-bottom:16px;
    letter-spacing:.02em;
  }
  .footer-col a{
    display:block;
    padding:7px 0;
    color:#9EA1BA;
    font-size:13.5px;
    transition:color .2s ease, transform .2s ease;
  }
  .footer-col a:hover{color:var(--teal-bright);transform:translateX(3px);}
  .footer-bottom{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    flex-wrap:wrap;
    padding:20px 0 24px;
    border-top:1px solid rgba(255,255,255,.10);
    font-size:13px;
    color:#7E819C;
  }
  @media (max-width:575px){
    .site-footer{padding-top:44px;}
    .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  }

  /* 回到顶部 */
  .to-top{
    position:fixed;
    right:20px;
    bottom:24px;
    width:46px;height:46px;
    display:none;
    align-items:center;
    justify-content:center;
    border:1px solid var(--line);
    border-radius:50%;
    background:#fff;
    color:var(--ink);
    box-shadow:var(--shadow-md);
    cursor:pointer;
    z-index:900;
    transition:transform .2s ease, color .2s ease;
  }
  .to-top:hover{color:var(--teal);transform:translateY(-3px);}
  .to-top.show{display:flex;}

/* roulang page: category5 */
:root{
  --ink:#241E4E;
  --ink-deep:#12122B;
  --teal:#169E90;
  --teal-bright:#21C7B4;
  --teal-soft:#E6F8F6;
  --teal-deep:#12786E;
  --gold:#F2A93B;
  --bg:#F5F6FA;
  --card:#FFFFFF;
  --line:#E7E9F2;
  --text:#2A2C3D;
  --muted:#6B6F85;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --radius-badge:6px;
  --shadow-sm:0 2px 8px rgba(16,16,36,.06);
  --shadow-md:0 10px 24px rgba(16,16,36,.10);
  --gutter:24px;
  --sec-pad:92px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.78;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--teal-deep);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--teal);}
button{font-family:inherit;}
h1,h2,h3,h4{color:var(--ink);font-weight:700;letter-spacing:-.01em;margin:0;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding-left:1.15em;}
.num{font-variant-numeric:tabular-nums;}

.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media (min-width:1400px){.wrap{max-width:1240px;}}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.94);
  border-bottom:1px solid var(--line);
  transition:background .25s ease,box-shadow .25s ease;
}
.site-header.scrolled{background:#fff;box-shadow:0 6px 18px rgba(16,16,36,.09);}
.header-inner{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:18px;
  height:72px;
  transition:height .25s ease;
}
.site-header.scrolled .header-inner{height:60px;}
.nav-side{display:flex;align-items:center;gap:26px;}
.nav-left{justify-content:flex-start;}
.nav-right{justify-content:flex-end;}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  min-height:44px;
  padding:0 2px;
  font-size:15px;
  color:var(--text);
  white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:8px;
  width:0;height:2px;background:var(--teal);
  transition:width .2s ease;
}
.nav-link:hover,.nav-link:focus-visible{color:var(--teal);}
.nav-link:hover::after,.nav-link:focus-visible::after{width:100%;}
.nav-link.active{color:var(--ink);font-weight:600;}
.nav-link.active::after{width:100%;}
.brand{display:inline-flex;align-items:center;gap:10px;justify-self:center;}
.brand-mark{
  width:36px;height:36px;flex:0 0 36px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--ink);color:#fff;border-radius:10px;font-size:15px;
}
.brand-text{font-size:19px;font-weight:800;color:var(--ink);letter-spacing:-.01em;line-height:1.1;}
.brand-text span{color:var(--teal);}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:40px;padding:0 22px;
  background:var(--teal);color:#fff;
  border:0;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;
  transition:transform .18s ease,background .18s ease,box-shadow .18s ease;
}
.btn-brand:hover{background:#137f74;color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-md);}
.btn-brand:active{transform:translateY(0);box-shadow:var(--shadow-sm);}
.btn-brand:focus-visible,.btn-line:focus-visible,.btn-ghost:focus-visible{outline:2px solid var(--teal-bright);outline-offset:2px;}
.btn-brand.lg{height:48px;padding:0 28px;font-size:16px;}
.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;
  background:transparent;color:var(--ink);
  border:1.5px solid var(--ink);border-radius:var(--radius-btn);
  font-size:16px;font-weight:600;line-height:1;
  transition:color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-line:hover{color:var(--teal);border-color:var(--teal);transform:translateY(-2px);box-shadow:var(--shadow-sm);}
.btn-ghost{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--ink);font-weight:600;font-size:15px;background:none;border:0;padding:0;
}
.btn-ghost i{transition:transform .2s ease;}
.btn-ghost:hover{color:var(--teal);}
.btn-ghost:hover i{transform:translateX(3px);}

.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  background:#fff;border:1px solid var(--line);border-radius:10px;
  color:var(--ink);font-size:16px;
}
.nav-toggle:focus-visible{outline:2px solid var(--teal-bright);outline-offset:2px;}
.mobile-cta{display:none;}
.mobile-panel{
  display:none;
  border-top:1px solid var(--line);
  background:#fff;
  padding:12px 0 22px;
}
.mobile-panel.open{display:block;}
.mobile-panel a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 4px;
  border-bottom:1px solid var(--line);
  color:var(--text);font-size:15px;
}
.mobile-panel a.active{color:var(--teal);font-weight:600;}
.mobile-panel .btn-brand{width:100%;margin-top:18px;height:48px;font-size:16px;}
body.nav-open{overflow:hidden;}
@media (max-width:991.98px){
  .header-inner{grid-template-columns:44px 1fr auto;height:64px;}
  .site-header.scrolled .header-inner{height:58px;}
  .nav-left,.nav-right{display:none;}
  .nav-toggle{display:inline-flex;}
  .brand{justify-self:center;}
  .brand-text{font-size:17px;}
  .mobile-cta{display:inline-flex;height:38px;padding:0 14px;font-size:14px;}
}

/* ---------- 页面 Hero ---------- */
.page-hero{
  position:relative;
  background:var(--ink-deep);
  color:#fff;
  padding:52px 0 68px;
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity:.3;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.55) 1px,transparent 1px);
  background-size:28px 28px;opacity:.06;
}
.page-hero .wrap{position:relative;z-index:2;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.62);margin-bottom:22px;}
.crumb a{color:rgba(255,255,255,.78);}
.crumb a:hover{color:#fff;}
.crumb .sep{opacity:.5;}
.crumb .current{color:rgba(255,255,255,.95);}
.page-hero h1{
  color:#fff;
  font-size:44px;
  line-height:1.24;
  font-weight:800;
  max-width:760px;
  margin-bottom:16px;
}
.page-hero .hero-sub{
  font-size:17px;
  color:rgba(255,255,255,.82);
  max-width:620px;
  margin-bottom:26px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;}
.hero-tags span{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.18);
  border-radius:999px;
  font-size:13px;color:rgba(255,255,255,.9);
}
.hero-tags i{color:var(--teal-bright);font-size:12px;}
@media (max-width:767.98px){
  .page-hero{padding:34px 0 48px;}
  .page-hero h1{font-size:28px;line-height:1.35;}
  .page-hero .hero-sub{font-size:15.5px;}
}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sec-pad) 0;}
.section.tight{padding:64px 0;}
.sec-head{margin-bottom:38px;max-width:720px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--teal-deep);
  background:var(--teal-soft);
  padding:5px 12px;border-radius:var(--radius-badge);
  margin-bottom:14px;
}
.sec-head h2{font-size:32px;line-height:1.32;margin-bottom:12px;}
.sec-head .sec-desc{color:var(--muted);font-size:16px;margin:0;}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:38px;}
.sec-head-row .sec-head{margin-bottom:0;}

/* ---------- 更新节奏流程条 ---------- */
.flow-band{background:#fff;border:1px solid var(--line);border-radius:18px;padding:38px 34px;box-shadow:var(--shadow-sm);}
.flow-track{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:26px;position:relative;
}
.flow-track::before{
  content:"";position:absolute;top:22px;left:6%;right:6%;
  border-top:2px dashed #D9DCEA;z-index:0;
}
.flow-step{position:relative;z-index:1;}
.flow-num{
  width:44px;height:44px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--teal-soft);color:var(--teal-deep);
  font-weight:800;font-size:15px;margin-bottom:16px;
  font-variant-numeric:tabular-nums;
  border:1px solid rgba(22,158,144,.22);
}
.flow-step h3{font-size:17px;margin-bottom:8px;}
.flow-step p{font-size:14.5px;color:var(--muted);line-height:1.75;margin:0;}
@media (max-width:991.98px){
  .flow-track{grid-template-columns:repeat(2,1fr);gap:24px;}
  .flow-track::before{display:none;}
  .flow-band{padding:28px 22px;}
}
@media (max-width:575.98px){
  .flow-track{grid-template-columns:1fr;}
}

/* ---------- 栏目速览（1 大 + 2 小） ---------- */
.channel-grid{
  display:grid;
  grid-template-columns:1.12fr .88fr;
  gap:var(--gutter);
  align-items:stretch;
}
.channel-main{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;display:flex;flex-direction:column;
  box-shadow:var(--shadow-sm);
}
.channel-main img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.channel-main .channel-body{padding:26px 28px 28px;}
.channel-main h3{font-size:21px;margin-bottom:10px;}
.channel-main p{font-size:15px;color:var(--muted);margin-bottom:16px;}
.channel-side{display:grid;grid-template-rows:1fr 1fr;gap:var(--gutter);}
.channel-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px 24px;display:flex;gap:18px;align-items:flex-start;
  box-shadow:var(--shadow-sm);
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.channel-item:hover{border-color:rgba(33,199,180,.35);box-shadow:var(--shadow-md);transform:translateY(-3px);}
.channel-ico{
  flex:0 0 44px;width:44px;height:44px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--teal-soft);color:var(--teal-deep);font-size:17px;
}
.channel-item h3{font-size:17px;margin-bottom:6px;}
.channel-item p{font-size:14.5px;color:var(--muted);margin:0 0 8px;}
.channel-item a{font-size:14px;font-weight:600;color:var(--teal-deep);}
.channel-item:hover h3{color:var(--teal);}
@media (max-width:991.98px){
  .channel-grid{grid-template-columns:1fr;}
  .channel-side{grid-template-rows:auto auto;}
}

/* ---------- 内容卡片 ---------- */
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:var(--gutter);
}
.news-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  display:flex;flex-direction:column;
  box-shadow:var(--shadow-sm);
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.news-card:hover{border-color:rgba(33,199,180,.35);box-shadow:var(--shadow-md);transform:translateY(-4px);}
.news-card .thumb{overflow:hidden;}
.news-card .thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .35s ease;}
.news-card:hover .thumb img{transform:scale(1.03);}
.news-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1 1 auto;}
.badge-cat{
  display:inline-flex;align-items:center;
  padding:4px 10px;border-radius:var(--radius-badge);
  background:var(--teal-soft);color:var(--teal-deep);
  font-size:12px;font-weight:600;
  margin-bottom:12px;align-self:flex-start;
}
.news-body h3{font-size:18px;line-height:1.5;margin-bottom:10px;transition:color .2s ease;}
.news-card:hover .news-body h3{color:var(--teal);}
.news-body p{
  font-size:14.5px;color:var(--muted);line-height:1.75;
  margin:0 0 16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--muted);
}
.news-foot i{color:var(--teal);margin-right:5px;}
.news-card a.stretched{position:absolute;inset:0;}
.news-card{position:relative;}
@media (max-width:991.98px){.card-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:767.98px){.card-grid{grid-template-columns:1fr;}}

/* ---------- 订阅 / CTA 深色带 ---------- */
.cta-band{
  position:relative;
  background:var(--ink-deep);
  color:#fff;
  padding:74px 0;
  overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.5) 1px,transparent 1px);
  background-size:30px 30px;opacity:.05;pointer-events:none;
}
.cta-band .wrap{position:relative;z-index:2;}
.cta-grid{display:grid;grid-template-columns:1fr .92fr;gap:52px;align-items:center;}
.cta-band h2{color:#fff;font-size:30px;line-height:1.35;margin-bottom:14px;}
.cta-band .cta-sub{color:rgba(255,255,255,.76);font-size:15.5px;margin-bottom:22px;max-width:440px;}
.cta-points{list-style:none;padding:0;margin:0;display:grid;gap:12px;}
.cta-points li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:rgba(255,255,255,.86);}
.cta-points i{color:var(--teal-bright);margin-top:5px;font-size:13px;}
.lead-card{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.14);
  border-radius:16px;
  padding:28px 26px;
}
.lead-card h3{color:#fff;font-size:18px;margin-bottom:6px;}
.lead-card .lead-note{color:rgba(255,255,255,.62);font-size:13px;margin-bottom:18px;}
.form-row{margin-bottom:14px;}
.form-row label{display:block;font-size:13px;font-weight:500;color:rgba(255,255,255,.8);margin-bottom:6px;}
.form-row input,.form-row select,.form-row textarea{
  width:100%;height:44px;padding:10px 14px;
  border:1.5px solid rgba(255,255,255,.22);
  border-radius:10px;
  background:rgba(255,255,255,.06);
  color:#fff;font-size:15px;font-family:inherit;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.form-row textarea{height:auto;min-height:82px;resize:vertical;line-height:1.7;}
.form-row input::placeholder,.form-row textarea::placeholder{color:rgba(255,255,255,.42);}
.form-row input:focus,.form-row select:focus,.form-row textarea:focus{
  outline:none;border-color:var(--teal-bright);
  box-shadow:0 0 0 4px rgba(33,199,180,.16);
}
.form-row select option{color:#2A2C3D;}
.lead-card .btn-brand{width:100%;margin-top:6px;}
.form-note{margin-top:12px;font-size:13px;color:var(--teal-bright);min-height:18px;}
@media (max-width:991.98px){
  .cta-grid{grid-template-columns:1fr;gap:34px;}
  .cta-band{padding:56px 0;}
  .cta-band h2{font-size:24px;}
}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:880px;}
.faq-item{
  background:var(--card);border:1px solid var(--line);
  border-radius:12px;overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:rgba(33,199,180,.3);box-shadow:var(--shadow-sm);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;
  background:none;border:0;text-align:left;
  font-size:16px;font-weight:600;color:var(--ink);
  min-height:44px;
  border-left:3px solid transparent;
  transition:color .2s ease,border-color .2s ease;
}
.faq-q i{color:var(--teal);font-size:14px;transition:transform .25s ease;flex:0 0 auto;}
.faq-q[aria-expanded="true"]{color:var(--teal-deep);border-left-color:var(--teal);}
.faq-q[aria-expanded="true"] i{transform:rotate(45deg);}
.faq-q:focus-visible{outline:2px solid var(--teal-bright);outline-offset:-2px;}
.faq-a{padding:0 20px 20px 23px;font-size:15px;line-height:1.82;color:var(--muted);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-deep);color:rgba(255,255,255,.66);padding:66px 0 0;font-size:14.5px;}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:32px;
  padding-bottom:46px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.1);}
.footer-brand-text{font-size:19px;font-weight:800;color:#fff;}
.footer-brand-text span{color:var(--teal-bright);}
.footer-about{color:rgba(255,255,255,.6);font-size:14px;line-height:1.8;margin-bottom:16px;max-width:340px;}
.footer-contact{color:rgba(255,255,255,.5);font-size:13px;line-height:1.9;margin:0;}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;}
.footer-col a{display:block;color:rgba(255,255,255,.62);font-size:14px;padding:6px 0;transition:color .2s ease;}
.footer-col a:hover{color:var(--teal-bright);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.42);
}
@media (max-width:991.98px){.footer-grid{grid-template-columns:1fr 1fr;gap:28px;}}
@media (max-width:575.98px){
  .footer-grid{grid-template-columns:1fr;}
  .site-footer{padding-top:48px;}
}

/* ---------- 板块间距响应 ---------- */
@media (max-width:991.98px){
  :root{--sec-pad:64px;}
  .sec-head h2{font-size:26px;}
}
@media (max-width:575.98px){
  :root{--sec-pad:48px;}
  .wrap{padding:0 16px;}
  .sec-head h2{font-size:23px;}
  .sec-head .sec-desc{font-size:15px;}
}