/* roulang page: index */
:root{
  --ui-ink:#14161A;
  --ui-paper:#F7F5F0;
  --ui-surface:#FFFFFF;
  --ui-sand:#EDE7DA;
  --ui-line:#E4E0D7;
  --ui-text:#1A1C20;
  --ui-muted:#5C6068;
  --ui-accent:#C8F24D;
  --ui-aux:#2F6D5E;
  --ui-alert:#E8543A;
  --r-card:16px;
  --r-nav:18px;
  --r-img:14px;
  --r-btn:10px;
  --r-input:10px;
  --sh-card:0 1px 2px rgba(20,22,26,.04), 0 12px 32px -18px rgba(20,22,26,.18);
  --sh-card-hover:0 2px 4px rgba(20,22,26,.06), 0 22px 44px -20px rgba(20,22,26,.26);
  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px; --sp-5:24px; --sp-6:32px; --sp-7:48px; --sp-8:64px; --sp-9:88px; --sp-10:120px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --bs-body-font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --bs-body-bg:var(--ui-paper);
  --bs-body-color:var(--ui-text);
  --bs-border-color:var(--ui-line);
  --bs-border-radius:var(--r-card);
  --bs-link-color:var(--ui-ink);
  --bs-link-hover-color:var(--ui-aux);
  --bs-primary:var(--ui-aux);
  --bs-primary-rgb:47,109,94;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ui-paper);
  color:var(--ui-text);
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--ui-ink);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--ui-aux)}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--ui-ink);outline-offset:2px}
h1,h2,h3,h4,h5{margin:0;font-weight:700;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.mono{font-family:ui-monospace,"JetBrains Mono",monospace;font-variant-numeric:tabular-nums}
.container{max-width:1200px;padding-left:20px;padding-right:20px;margin:0 auto}
.sec{padding:var(--sp-9) 0}
.sec-tight{padding:var(--sp-7) 0}
.sec-head{margin-bottom:var(--sp-6);max-width:760px}
.sec-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--ui-muted);margin-bottom:10px;
}
.sec-kicker::before{content:"";width:18px;height:2px;background:var(--ui-accent)}
.sec-title{font-size:clamp(24px,3vw,34px);line-height:1.25}
.sec-desc{margin-top:10px;color:var(--ui-muted);font-size:15px;max-width:640px}
.bg-sand{background:var(--ui-sand)}
.section-divider{height:1px;background:var(--ui-line);border:0;margin:0}

/* ============ 导航 ============ */
.site-head{
  position:sticky;top:0;z-index:1030;
  padding:12px 0;
  transition:padding .22s var(--ease);
}
.site-head.scrolled{padding:7px 0}
.nav-card{
  display:flex;align-items:center;gap:16px;
  background:var(--ui-surface);
  border:1px solid var(--ui-line);
  border-radius:var(--r-nav);
  padding:9px 14px;
  box-shadow:0 1px 2px rgba(20,22,26,.04),0 10px 26px -20px rgba(20,22,26,.22);
  transition:box-shadow .22s var(--ease),min-height .22s var(--ease);
  min-height:76px;
}
.site-head.scrolled .nav-card{min-height:64px;box-shadow:0 2px 4px rgba(20,22,26,.06),0 16px 34px -18px rgba(20,22,26,.3)}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  background:var(--ui-ink);color:var(--ui-accent);
  display:grid;place-items:center;font-size:17px;
}
.brand-text{font-size:16px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.nav-mid{display:flex;align-items:center;gap:8px;flex:1 1 auto;min-width:0}
.nav-tile{
  display:flex;align-items:center;gap:8px;
  padding:8px 12px;border-radius:12px;
  border:1px solid transparent;
  font-size:14px;font-weight:600;color:var(--ui-text);
  white-space:nowrap;
  transition:transform .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease);
}
.nav-tile .nt-ico{color:var(--ui-aux);font-size:13px}
.nav-tile:hover{transform:translateY(-2px);border-color:var(--ui-accent);background:#FCFBF7;color:var(--ui-text)}
.nav-tile.active{background:var(--ui-paper);border-color:var(--ui-line);color:var(--ui-ink)}
.nav-tile.active .nt-ico{color:var(--ui-ink)}
.nav-tile.more{color:var(--ui-muted)}
.nav-cta{flex:0 0 auto}
.nav-toggle{
  margin-left:auto;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--ui-line);background:var(--ui-surface);
  display:grid;place-items:center;font-size:17px;
}
@media (min-width:992px){.nav-mid.collapse{display:flex!important}}
@media (max-width:1199px){
  .nav-tile{padding:8px 10px}
  .nav-tile .nt-txt{font-size:13px}
}
@media (max-width:991px){
  .nav-card{flex-wrap:wrap;min-height:64px}
  .nav-mid{flex-direction:column;align-items:stretch;gap:6px;padding:12px 2px 4px;flex-basis:100%}
  .nav-tile{justify-content:flex-start;padding:12px 12px}
  .nav-cta{order:2;margin-left:auto}
  .site-head.scrolled .nav-card{min-height:64px}
}

/* ============ 按钮 ============ */
.btn{min-height:44px;border-radius:var(--r-btn);font-weight:700;font-size:15px;padding:10px 20px;display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;transition:all .18s var(--ease)}
.btn-lime{background:var(--ui-accent);color:var(--ui-ink);border-color:var(--ui-accent)}
.btn-lime:hover,.btn-lime:focus-visible{background:var(--ui-ink);color:var(--ui-accent);border-color:var(--ui-ink)}
.btn-ink{background:var(--ui-ink);color:#fff;border-color:var(--ui-ink)}
.btn-ink:hover,.btn-ink:focus-visible{background:var(--ui-accent);color:var(--ui-ink);border-color:var(--ui-accent)}
.btn-outline-ink{background:transparent;color:var(--ui-ink);border:1px solid var(--ui-ink)}
.btn-outline-ink:hover,.btn-outline-ink:focus-visible{background:var(--ui-ink);color:#fff;border-color:var(--ui-ink)}
.btn-ghost{background:var(--ui-surface);border:1px solid var(--ui-line);color:var(--ui-ink)}
.btn-ghost:hover{border-color:var(--ui-ink);color:var(--ui-ink)}
.btn-sm{min-height:38px;font-size:14px;padding:7px 14px}

/* ============ Hero ============ */
.hero{padding:var(--sp-8) 0 var(--sp-7)}
.hero-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--ui-aux);
  background:var(--ui-surface);border:1px solid var(--ui-line);
  border-radius:999px;padding:6px 14px;margin-bottom:20px;
}
.hero-kicker i{font-size:11px}
.hero-title{
  font-size:clamp(30px,4.6vw,54px);font-weight:800;line-height:1.15;letter-spacing:-.02em;
  max-width:16em;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0 0}
.hero-tag{
  font-size:13px;font-weight:600;color:var(--ui-text);
  background:var(--ui-surface);border:1px solid var(--ui-line);
  border-radius:999px;padding:7px 14px;
  transition:border-color .18s var(--ease),transform .18s var(--ease);
}
.hero-tag:hover{border-color:var(--ui-accent);transform:translateY(-2px)}
.hero-sub{margin-top:20px;font-size:16px;color:var(--ui-muted);max-width:34em}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-visual{position:relative}
.hero-figure{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--ui-line);background:var(--ui-sand);
  box-shadow:var(--sh-card);
}
.hero-figure img{width:100%;aspect-ratio:16/10;object-fit:cover}
.hero-badge{
  position:absolute;left:14px;bottom:14px;
  display:flex;align-items:center;gap:8px;
  background:rgba(20,22,26,.86);color:#fff;
  border:1px solid rgba(255,255,255,.12);
  border-radius:12px;padding:8px 12px;font-size:12px;
  backdrop-filter:blur(2px);
}
.hero-badge .hb-dot{width:7px;height:7px;border-radius:50%;background:var(--ui-accent)}
.hero-badge .hb-t{font-weight:700}
.hero-badge .hb-s{color:#9AA0A8}
.hero-foot{
  margin-top:var(--sp-7);padding-top:var(--sp-5);
  border-top:1px solid var(--ui-line);
  display:grid;grid-template-columns:repeat(3,1fr);gap:var(--sp-5);
}
.hero-foot li{display:flex;align-items:center;gap:10px;font-size:14px;font-weight:600}
.hero-foot i{color:var(--ui-aux);font-size:14px}

@keyframes fadeUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.fade-up{animation:fadeUp .6s var(--ease) both}
.d1{animation-delay:.06s}.d2{animation-delay:.12s}.d3{animation-delay:.18s}.d4{animation-delay:.24s}

/* ============ 方案卡组 ============ */
.plan-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--ui-surface);border:1px solid var(--ui-line);
  border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-card);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.plan-card:hover{transform:translateY(-2px);box-shadow:var(--sh-card-hover);border-color:var(--ui-line)}
.plan-card:hover .plan-title::after{transform:scaleX(1)}
.plan-ico{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:var(--ui-paper);border:1px solid var(--ui-line);color:var(--ui-aux);font-size:17px;
  margin-bottom:16px;
}
.plan-card.big{
  flex-direction:row;align-items:center;gap:28px;
  background:var(--ui-surface);
}
.plan-card.big .plan-main{flex:1 1 auto;min-width:0}
.plan-card.big .plan-media{
  flex:0 0 42%;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--ui-line);
}
.plan-card.big .plan-media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.plan-title{font-size:19px;position:relative;display:inline-block}
.plan-title::after{
  content:"";position:absolute;left:0;bottom:-5px;height:2px;width:100%;
  background:var(--ui-accent);transform:scaleX(0);transform-origin:left;
  transition:transform .22s var(--ease);
}
.plan-text{margin-top:14px;color:var(--ui-muted);font-size:14.5px;line-height:1.8}
.plan-link{
  margin-top:auto;padding-top:18px;font-size:14px;font-weight:700;color:var(--ui-ink);
  display:inline-flex;align-items:center;gap:8px;
}
.plan-link i{transition:transform .18s var(--ease)}
.plan-card:hover .plan-link i{transform:translateX(4px)}

/* ============ 数据带 ============ */
.stats-band{background:var(--ui-ink);color:#fff;padding:var(--sp-9) 0}
.stats-band .sec-kicker{color:#9AA0A8}
.stats-band .sec-title{color:#fff}
.stats-band .sec-desc{color:#9AA0A8}
.stat-col{padding-top:18px;border-top:2px solid var(--ui-accent)}
.stat-num{
  font-family:ui-monospace,"JetBrains Mono",monospace;font-variant-numeric:tabular-nums;
  font-size:clamp(38px,4.4vw,54px);font-weight:700;line-height:1;color:var(--ui-accent);
}
.stat-num span{font-size:16px;font-weight:600;color:#9AA0A8;margin-left:6px}
.stat-label{margin-top:12px;font-size:12px;letter-spacing:.06em;color:#9AA0A8}

/* ============ 分类卡 ============ */
.cat-card{
  display:flex;flex-direction:column;height:100%;overflow:hidden;
  background:var(--ui-surface);border:1px solid var(--ui-line);
  border-radius:var(--r-card);box-shadow:var(--sh-card);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.cat-card:hover{transform:translateY(-2px);box-shadow:var(--sh-card-hover);border-color:var(--ui-accent)}
.cat-media{overflow:hidden}
.cat-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s var(--ease)}
.cat-card:hover .cat-media img{transform:scale(1.03)}
.cat-body{padding:22px;display:flex;flex-direction:column;flex:1 1 auto}
.cat-body h3{font-size:18px}
.cat-card:hover .cat-body h3{color:var(--ui-aux)}
.cat-body p{margin-top:10px;font-size:14px;color:var(--ui-muted)}
.cat-foot{margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ui-muted)}

/* ============ 资讯卡 ============ */
.pill-bar{display:flex;gap:10px;overflow-x:auto;scroll-snap-type:x proximity;padding-bottom:6px;margin-bottom:var(--sp-5)}
.pill-bar::-webkit-scrollbar{height:0}
.pill{
  flex:0 0 auto;scroll-snap-align:start;
  font-size:13px;font-weight:600;color:var(--ui-muted);
  background:var(--ui-surface);border:1px solid var(--ui-line);
  border-radius:999px;padding:7px 16px;
}
.pill.is-active{background:var(--ui-ink);border-color:var(--ui-ink);color:#fff}
.pill:hover{border-color:var(--ui-ink);color:var(--ui-ink)}
.pill.is-active:hover{color:#fff}
.news-card{
  display:flex;flex-direction:column;height:100%;overflow:hidden;
  background:var(--ui-surface);border:1px solid var(--ui-line);
  border-radius:var(--r-card);box-shadow:var(--sh-card);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-card-hover);border-color:var(--ui-line);color:var(--ui-ink)}
.news-card:hover .news-title::after{transform:scaleX(1)}
.news-media{overflow:hidden}
.news-media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1 1 auto}
.news-title{
  font-size:18px;line-height:1.5;position:relative;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-title::after{
  content:"";position:absolute;left:0;bottom:-4px;height:2px;width:56px;
  background:var(--ui-accent);transform:scaleX(0);transform-origin:left;
  transition:transform .22s var(--ease);
}
.news-sum{
  margin-top:12px;font-size:14px;color:var(--ui-muted);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{margin-top:auto;padding-top:18px;display:flex;align-items:center;gap:12px;font-size:13px}
.badge-cat{
  background:var(--ui-aux);color:#fff;border-radius:999px;
  padding:4px 12px;font-size:12px;font-weight:600;
}
.news-time{font-family:ui-monospace,"JetBrains Mono",monospace;font-variant-numeric:tabular-nums;color:var(--ui-muted);font-size:13px}
.news-arrow{margin-left:auto;color:var(--ui-muted)}
.empty-card{
  height:180px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  background:var(--ui-surface);border:1px dashed var(--ui-line);border-radius:var(--r-card);
  color:var(--ui-muted);font-size:14px;text-align:center;padding:20px;
}
.empty-card i{font-size:22px;color:var(--ui-aux)}

/* ============ FAQ ============ */
.faq .accordion-item{
  background:var(--ui-surface);border:1px solid var(--ui-line)!important;
  border-radius:14px!important;margin-bottom:10px;overflow:hidden;
}
.faq .accordion-item:has(.accordion-button:not(.collapsed)){border-left:3px solid var(--ui-accent)!important}
.faq .accordion-button{
  background:var(--ui-surface);color:var(--ui-ink);font-weight:700;font-size:16px;
  padding:18px 20px;box-shadow:none!important;border-radius:14px!important;
}
.faq .accordion-button:not(.collapsed){color:var(--ui-ink);background:var(--ui-surface)}
.faq .accordion-button::after{
  content:"+";background-image:none!important;
  width:auto;height:auto;font-size:22px;line-height:1;color:var(--ui-muted);
  display:flex;align-items:center;justify-content:center;
  transition:transform .22s var(--ease),color .22s var(--ease);
}
.faq .accordion-button:not(.collapsed)::after{transform:rotate(45deg);color:var(--ui-ink)}
.faq .accordion-body{padding:0 20px 20px;color:var(--ui-muted);font-size:15px}

/* ============ 表单与弹层 ============ */
.form-label{font-size:13px;color:var(--ui-muted);font-weight:600;margin-bottom:6px}
.form-control,.form-select{
  min-height:46px;border-radius:var(--r-input);border:1px solid var(--ui-line);
  background:var(--ui-surface);font-size:15px;color:var(--ui-text);
  padding:10px 14px;box-shadow:none;
}
.form-control:focus,.form-select:focus{
  border-color:var(--ui-ink);
  box-shadow:0 0 0 3px rgba(200,242,77,.35);
}
.form-check-input{width:18px;height:18px;margin-top:4px;border-radius:5px;border-color:var(--ui-line)}
.form-check-input:checked{background-color:var(--ui-ink);border-color:var(--ui-ink)}
.form-check-input:focus{box-shadow:0 0 0 3px rgba(200,242,77,.35);border-color:var(--ui-ink)}
.form-check-label{font-size:13px;color:var(--ui-muted)}
.err-text{display:none;font-size:13px;color:var(--ui-alert);margin-top:6px}
.is-invalid-soft{border-color:var(--ui-alert)!important}
.form-panel{
  background:var(--ui-surface);border:1px solid var(--ui-line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sh-card);
}
.modal-content{border:0;border-radius:20px;overflow:hidden}
.modal-backdrop.show{background:rgba(20,22,26,.55);backdrop-filter:blur(3px);opacity:1}
.modal-close{
  position:absolute;right:14px;top:14px;width:34px;height:34px;border-radius:50%;
  border:1px solid var(--ui-line);background:var(--ui-surface);
  display:grid;place-items:center;font-size:13px;color:var(--ui-muted);z-index:5;
  transition:border-color .18s var(--ease),color .18s var(--ease);
}
.modal-close:hover{border-color:var(--ui-ink);color:var(--ui-ink)}
.modal-side{background:var(--ui-ink);color:#fff;padding:32px 28px}
.modal-side h4{color:#fff;font-size:20px;line-height:1.5}
.modal-side ul{margin-top:20px}
.modal-side li{display:flex;gap:10px;font-size:14px;color:#C9CDD4;margin-bottom:12px;line-height:1.7}
.modal-side li i{color:var(--ui-accent);margin-top:5px;font-size:12px}

/* ============ 隐私说明 ============ */
.note-box{
  background:var(--ui-sand);border:1px solid var(--ui-line);border-radius:var(--r-card);
  padding:24px 26px;
}
.note-box h3{font-size:16px;display:flex;align-items:center;gap:10px}
.note-box h3 i{color:var(--ui-aux)}
.note-box p{margin-top:12px;font-size:14.5px;color:var(--ui-muted)}

/* ============ 页脚 ============ */
.site-foot{background:var(--ui-ink);color:#9AA0A8;padding:var(--sp-9) 0 0}
.site-foot h4{font-size:14px;color:#fff;margin-bottom:18px;letter-spacing:.02em}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.foot-brand .brand-mark{background:var(--ui-accent);color:var(--ui-ink)}
.foot-brand span{color:#fff;font-weight:800;font-size:16px}
.foot-text{font-size:14px;line-height:1.9;max-width:30em}
.foot-links li{margin-bottom:11px}
.foot-links a{
  font-size:14px;color:#9AA0A8;display:inline-flex;align-items:center;position:relative;padding-left:0;
  transition:color .18s var(--ease),padding-left .18s var(--ease);
}
.foot-links a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:0;height:2px;background:var(--ui-accent);transition:width .18s var(--ease);
}
.foot-links a:hover{color:var(--ui-accent);padding-left:14px}
.foot-links a:hover::before{width:8px}
.foot-bottom{
  margin-top:var(--sp-8);border-top:1px solid rgba(255,255,255,.08);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:#7E848C;
}
.foot-bottom .mono{color:#7E848C}

/* ============ 响应式 ============ */
@media (max-width:991px){
  .sec{padding:64px 0}
  .hero{padding:40px 0 48px}
  .plan-card.big{flex-direction:column;align-items:stretch}
  .plan-card.big .plan-media{flex:0 0 auto}
  .hero-foot{grid-template-columns:1fr;gap:14px}
}
@media (max-width:767px){
  .sec{padding:56px 0}
  .hero-title{max-width:none}
  .nav-cta{font-size:14px;padding:9px 14px}
  .form-panel{padding:20px}
  .modal-side{padding:26px 20px}
}
@media (max-width:575px){
  .stat-col{margin-bottom:26px}
  .hero-cta .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .fade-up{opacity:1!important;transform:none!important}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
  --ui-ink:#14161A;
  --ui-paper:#F7F5F0;
  --ui-surface:#FFFFFF;
  --ui-sand:#EDE7DA;
  --ui-line:#E4E0D7;
  --ui-text:#1A1C20;
  --ui-muted:#5C6068;
  --ui-accent:#C8F24D;
  --ui-aux:#2F6D5E;
  --ui-alert:#E8543A;

  --r-card:16px;
  --r-nav:18px;
  --r-img:14px;
  --r-btn:10px;
  --r-input:10px;

  --sh-card:0 1px 2px rgba(20,22,26,.04), 0 12px 32px -18px rgba(20,22,26,.18);
  --sh-card-hover:0 2px 4px rgba(20,22,26,.05), 0 22px 46px -22px rgba(20,22,26,.26);
  --sh-nav:0 1px 2px rgba(20,22,26,.05), 0 18px 40px -26px rgba(20,22,26,.22);

  --mono:ui-monospace,"JetBrains Mono","SFMono-Regular",Menlo,monospace;
  --ease:cubic-bezier(.2,.7,.3,1);

  --bs-primary:#2F6D5E;
  --bs-primary-rgb:47,109,94;
  --bs-body-bg:#F7F5F0;
  --bs-body-color:#1A1C20;
  --bs-border-color:#E4E0D7;
  --bs-border-radius:10px;
  --bs-link-color:#1A1C20;
  --bs-link-hover-color:#2F6D5E;
  --bs-font-sans-serif:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ui-paper);
  color:var(--ui-text);
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--ui-text);text-decoration:none;transition:color 160ms var(--ease)}
a:hover{color:var(--ui-aux)}
h1,h2,h3,h4{margin:0;font-weight:800;color:var(--ui-ink)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;letter-spacing:-.01em}
::selection{background:var(--ui-accent);color:var(--ui-ink)}
:focus-visible{outline:2px solid var(--ui-ink);outline-offset:2px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1400px){.container{max-width:1200px}}

/* ---------- header / nav ---------- */
.site-head{
  position:sticky;top:0;z-index:1030;
  padding:12px 0;
  background:rgba(247,245,240,.9);
  backdrop-filter:blur(10px);
  transition:padding 200ms var(--ease);
}
.site-head.is-compact{padding:7px 0}
.nav-card{
  display:flex;align-items:center;gap:18px;
  background:var(--ui-surface);
  border:1px solid var(--ui-line);
  border-radius:var(--r-nav);
  box-shadow:var(--sh-nav);
  padding:12px 16px;
  min-height:76px;
  transition:min-height 200ms var(--ease),box-shadow 200ms var(--ease);
}
.site-head.is-compact .nav-card{min-height:64px;box-shadow:var(--sh-card-hover)}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:11px;
  background:var(--ui-ink);color:var(--ui-accent);
  display:flex;align-items:center;justify-content:center;font-size:15px;
}
.brand-text{font-weight:800;font-size:17px;letter-spacing:-.01em;white-space:nowrap}
.nav-mid{display:flex;align-items:center;gap:8px;margin-left:auto}
.nav-tile{
  display:flex;align-items:center;gap:8px;
  padding:9px 13px;border-radius:12px;
  border:1px solid var(--ui-line);
  background:#FCFBF8;
  font-size:14px;font-weight:600;color:var(--ui-text);
  transition:transform 180ms var(--ease),border-color 180ms var(--ease),box-shadow 180ms var(--ease),background 180ms var(--ease);
}
.nav-tile .nt-ico{color:var(--ui-aux);font-size:13px}
.nav-tile:hover{transform:translateY(-2px);border-color:var(--ui-accent);box-shadow:var(--sh-card);color:var(--ui-ink)}
.nav-tile.active{background:var(--ui-ink);border-color:var(--ui-ink);color:#fff}
.nav-tile.active .nt-ico{color:var(--ui-accent)}
.nav-toggle{
  margin-left:auto;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--ui-line);background:#FCFBF8;color:var(--ui-ink);font-size:16px;
}
.nav-cta{white-space:nowrap;flex:0 0 auto}
@media (max-width:1199.98px){
  .nav-tile{padding:8px 10px;font-size:13px}
  .nav-tile .nt-txt{white-space:nowrap}
}
@media (max-width:991.98px){
  .nav-card{flex-wrap:wrap;gap:12px}
  .nav-mid{order:3;width:100%;flex-direction:column;align-items:stretch;gap:8px;margin-left:0;padding-top:12px;border-top:1px solid var(--ui-line)}
  .nav-tile{justify-content:flex-start;padding:12px 14px}
  .nav-toggle{margin-left:auto;order:2}
  .nav-cta{order:1;margin-left:auto}
}
@media (min-width:992px){
  #navPanel.collapse{display:flex !important;visibility:visible !important}
}

/* ---------- buttons ---------- */
.btn-lime{
  background:var(--ui-accent);color:var(--ui-ink);
  border:1px solid var(--ui-accent);
  border-radius:var(--r-btn);font-weight:700;font-size:15px;
  min-height:44px;padding:0 18px;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  transition:background 180ms var(--ease),color 180ms var(--ease),border-color 180ms var(--ease),transform 180ms var(--ease);
}
.btn-lime:hover,.btn-lime:active{background:var(--ui-ink);color:var(--ui-accent);border-color:var(--ui-ink)}
.btn-ghost{
  background:transparent;color:var(--ui-ink);
  border:1px solid var(--ui-ink);
  border-radius:var(--r-btn);font-weight:700;font-size:15px;
  min-height:44px;padding:0 18px;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  transition:background 180ms var(--ease),color 180ms var(--ease);
}
.btn-ghost:hover,.btn-ghost:active{background:var(--ui-ink);color:#fff}
.btn-line{
  background:var(--ui-surface);color:var(--ui-ink);
  border:1px solid var(--ui-line);border-radius:var(--r-btn);
  font-weight:600;font-size:14px;min-height:44px;padding:0 16px;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  transition:border-color 180ms var(--ease),transform 180ms var(--ease),box-shadow 180ms var(--ease);
}
.btn-line:hover{border-color:var(--ui-accent);transform:translateY(-2px);box-shadow:var(--sh-card);color:var(--ui-ink)}

/* ---------- hero ---------- */
.page-hero{padding:44px 0 0}
.crumb{font-size:13px;color:var(--ui-muted);display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:22px}
.crumb a{color:var(--ui-muted)}
.crumb a:hover{color:var(--ui-ink)}
.crumb .sep{color:#B9B4A8}
.crumb .cur{color:#8C9098}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.02em;
  color:var(--ui-aux);background:#EAF1EE;
  border:1px solid #D6E3DE;border-radius:999px;padding:6px 12px;margin-bottom:18px;
}
.page-hero h1{
  font-size:clamp(30px,4.6vw,54px);line-height:1.15;
  letter-spacing:-.02em;font-weight:800;margin-bottom:20px;
}
.page-hero .lead-text{
  font-size:16px;line-height:1.9;color:var(--ui-muted);max-width:640px;
}
.hero-points{display:flex;flex-wrap:wrap;gap:20px;margin-top:24px}
.hero-points span{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ui-text);font-weight:600}
.hero-points i{color:var(--ui-aux);font-size:12px}
.hero-figure{
  position:relative;border-radius:var(--r-img);overflow:hidden;
  border:1px solid var(--ui-line);box-shadow:var(--sh-card);
  background:var(--ui-sand);
}
.hero-figure img{width:100%;height:100%;aspect-ratio:16/10;object-fit:cover}
.hero-figure figcaption{
  position:absolute;left:14px;bottom:14px;
  background:rgba(20,22,26,.9);color:#fff;
  font-size:12px;font-family:var(--mono);padding:7px 11px;border-radius:999px;
}
.hero-rule{height:1px;background:var(--ui-line);margin-top:40px}

/* ---------- anchor bar ---------- */
.anchor-wrap{position:sticky;top:96px;z-index:1020;padding:16px 0}
.site-head.is-compact ~ * .anchor-wrap{}
.anchor-bar{
  display:flex;gap:10px;overflow-x:auto;
  scroll-snap-type:x mandatory;
  background:rgba(247,245,240,.94);
  backdrop-filter:blur(8px);
  padding:10px 12px;border:1px solid var(--ui-line);
  border-radius:999px;box-shadow:0 1px 2px rgba(20,22,26,.04);
  scrollbar-width:none;
}
.anchor-bar::-webkit-scrollbar{display:none}
.anchor-bar a{
  scroll-snap-align:start;flex:0 0 auto;
  font-size:13px;font-weight:600;color:var(--ui-muted);
  border:1px solid var(--ui-line);background:var(--ui-surface);
  border-radius:999px;padding:7px 15px;
  transition:all 180ms var(--ease);
}
.anchor-bar a:hover{border-color:var(--ui-accent);color:var(--ui-ink);transform:translateY(-2px)}

/* ---------- section basics ---------- */
.section{padding:88px 0 0}
.section-head{max-width:720px;margin-bottom:36px}
.section-head h2{font-size:clamp(24px,3vw,34px);line-height:1.25;letter-spacing:-.01em;margin-bottom:12px}
.section-head p{font-size:15px;color:var(--ui-muted)}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--mono);font-size:12px;color:var(--ui-muted);
  letter-spacing:.06em;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--ui-accent);display:block}

/* ---------- layout: toc + steps ---------- */
.toc-card{
  position:sticky;top:172px;
  background:var(--ui-surface);border:1px solid var(--ui-line);
  border-radius:var(--r-card);box-shadow:var(--sh-card);padding:22px;
}
.toc-card h3{font-size:15px;margin-bottom:14px;letter-spacing:-.01em}
.toc-list li+li{margin-top:2px}
.toc-list a{
  display:flex;gap:12px;align-items:flex-start;
  padding:10px 12px;border-radius:10px;font-size:14px;color:var(--ui-muted);
  border-left:3px solid transparent;transition:all 180ms var(--ease);
}
.toc-list a .no{font-family:var(--mono);font-size:12px;color:#A9A49A;padding-top:2px}
.toc-list a:hover{background:#FAF8F4;color:var(--ui-ink);border-left-color:var(--ui-accent)}
.toc-foot{
  margin-top:18px;padding-top:16px;border-top:1px solid var(--ui-line);
  font-size:13px;color:var(--ui-muted);
}
.toc-foot a{color:var(--ui-aux);font-weight:600}

.step{
  display:grid;grid-template-columns:88px 1fr;gap:26px;
  padding:34px 0;border-top:1px solid var(--ui-line);
}
.step:first-child{border-top:0;padding-top:0}
.step-no{
  font-family:var(--mono);font-size:40px;line-height:1;
  font-weight:700;color:var(--ui-ink);letter-spacing:-.03em;
}
.step-no small{display:block;font-size:12px;color:var(--ui-muted);letter-spacing:.04em;margin-top:8px;font-weight:500}
.step-body h3{font-size:19px;margin-bottom:12px;letter-spacing:-.01em}
.step-body p{color:var(--ui-muted);font-size:15.5px;margin-bottom:14px}
.check-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:15px;color:var(--ui-text);padding:8px 0;
  border-bottom:1px dashed var(--ui-line);
}
.check-list li:last-child{border-bottom:0}
.check-list i{color:var(--ui-aux);font-size:12px;padding-top:7px}
.note-box{
  margin-top:16px;background:var(--ui-sand);border-left:3px solid var(--ui-ink);
  border-radius:0 12px 12px 0;padding:14px 18px;font-size:14.5px;color:var(--ui-text);
}
.note-box b{font-weight:800}
.step-figure{
  margin-top:18px;border:1px solid var(--ui-line);border-radius:var(--r-img);
  overflow:hidden;background:var(--ui-sand);
}
.step-figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
.step-figure figcaption{font-size:13px;color:var(--ui-muted);text-align:center;padding:10px 12px;background:var(--ui-surface)}

/* ---------- faq ---------- */
.faq-sec .accordion-item{
  background:var(--ui-surface);border:1px solid var(--ui-line);
  border-left:3px solid transparent;
  border-radius:14px;margin-bottom:10px;overflow:hidden;
}
.faq-sec .accordion-item:has(.accordion-button:not(.collapsed)){border-left-color:var(--ui-accent)}
.faq-sec .accordion-button{
  background:var(--ui-surface);color:var(--ui-ink);
  font-weight:700;font-size:16px;padding:20px 22px;box-shadow:none;gap:16px;
}
.faq-sec .accordion-button:not(.collapsed){background:var(--ui-surface);color:var(--ui-ink);box-shadow:none}
.faq-sec .accordion-button:focus{box-shadow:none;outline:2px solid var(--ui-ink);outline-offset:-4px}
.faq-sec .accordion-button::after{
  content:"+";background-image:none !important;
  width:auto;height:auto;margin-left:auto;
  font-family:var(--mono);font-size:22px;line-height:1;color:var(--ui-muted);
  transform:none;display:flex;align-items:center;
  transition:transform 180ms var(--ease),color 180ms var(--ease);
}
.faq-sec .accordion-button:not(.collapsed)::after{transform:rotate(45deg);color:var(--ui-ink)}
.faq-sec .accordion-body{padding:0 22px 22px;color:var(--ui-muted);font-size:15.5px}

/* ---------- cta band ---------- */
.cta-band{
  margin-top:96px;background:var(--ui-ink);color:#fff;
  border-radius:20px;padding:52px 44px;
  display:flex;flex-wrap:wrap;gap:28px;align-items:center;justify-content:space-between;
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,30px);letter-spacing:-.01em;margin-bottom:10px}
.cta-band p{color:#9AA0A8;font-size:15px;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.cta-band .btn-ghost{color:#fff;border-color:rgba(255,255,255,.35)}
.cta-band .btn-ghost:hover{background:#fff;border-color:#fff;color:var(--ui-ink)}

/* ---------- related ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.rel-card{
  background:var(--ui-surface);border:1px solid var(--ui-line);
  border-radius:var(--r-card);padding:22px;display:flex;flex-direction:column;gap:12px;
  transition:transform 180ms var(--ease),box-shadow 180ms var(--ease),border-color 180ms var(--ease);
}
.rel-card:hover{transform:translateY(-2px);box-shadow:var(--sh-card-hover);border-color:var(--ui-line)}
.rel-card .rc-top{display:flex;align-items:center;justify-content:space-between;gap:12px}
.badge-aux{
  background:var(--ui-aux);color:#fff;font-size:12px;font-weight:600;
  border-radius:999px;padding:5px 11px;display:inline-flex;align-items:center;
}
.badge-lime{
  background:var(--ui-accent);color:var(--ui-ink);font-size:12px;font-weight:700;
  border-radius:999px;padding:5px 11px;display:inline-flex;align-items:center;
}
.rel-card h3{font-size:18px;line-height:1.45}
.rel-card h3 a{display:inline}
.rel-card p{font-size:14px;color:var(--ui-muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-card .rc-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ui-muted)}
.rel-card .rc-foot .go{display:inline-flex;align-items:center;gap:6px;font-weight:700;color:var(--ui-ink)}
.rel-card:hover .rc-foot .go{color:var(--ui-aux)}
.rel-card.current{border-color:var(--ui-accent)}
.rel-card.current .rc-foot .go{color:var(--ui-muted);font-weight:600}

/* ---------- footer ---------- */
.site-foot{background:var(--ui-ink);color:#fff;margin-top:110px;padding:64px 0 0}
.foot-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;margin-bottom:16px}
.foot-brand .brand-mark{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12)}
.foot-text{color:#9AA0A8;font-size:14px;line-height:1.85}
.site-foot h4{color:#fff;font-size:14px;font-weight:700;margin-bottom:18px;letter-spacing:.01em}
.foot-links li+li{margin-top:10px}
.foot-links a{
  color:#9AA0A8;font-size:14px;display:inline-flex;align-items:center;gap:8px;
  transition:color 160ms var(--ease);
}
.foot-links a::before{
  content:"";width:0;height:1px;background:var(--ui-accent);
  transition:width 180ms var(--ease);
}
.foot-links a:hover{color:var(--ui-accent)}
.foot-links a:hover::before{width:6px}
.foot-bottom{
  margin-top:52px;padding:22px 0;border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  color:#7D838C;font-size:13px;
}
.foot-bottom .mono{color:#7D838C}

/* ---------- modal ---------- */
.modal-backdrop.show{opacity:.55;backdrop-filter:blur(3px)}
#askModal .modal-dialog{max-width:520px;margin:1.25rem auto}
@media (min-width:992px){#askModal .modal-dialog{max-width:760px}}
#askModal .modal-content{
  background:var(--ui-surface);border:1px solid var(--ui-line);
  border-radius:20px;padding:26px;position:relative;box-shadow:0 30px 70px -30px rgba(20,22,26,.5);
}
#askModal .modal-x{
  position:absolute;right:14px;top:14px;width:36px;height:36px;border-radius:50%;
  border:1px solid var(--ui-line);background:var(--ui-surface);color:var(--ui-muted);
  display:flex;align-items:center;justify-content:center;font-size:15px;line-height:1;
  transition:all 180ms var(--ease);
}
#askModal .modal-x:hover{border-color:var(--ui-ink);color:var(--ui-ink)}
.modal-side h3{font-size:20px;margin-bottom:12px;letter-spacing:-.01em}
.modal-side p{font-size:14px;color:var(--ui-muted);margin-bottom:16px}
.modal-side li{display:flex;gap:10px;font-size:14px;color:var(--ui-text);padding:7px 0}
.modal-side li i{color:var(--ui-aux);font-size:12px;padding-top:6px}
.form-label{font-size:13px;color:var(--ui-muted);font-weight:600;margin-bottom:6px}
.form-control,.form-select{
  height:46px;border-radius:var(--r-input);border:1px solid var(--ui-line);
  background:var(--ui-surface);color:var(--ui-text);font-size:15px;padding:0 14px;
  box-shadow:none;
}
.form-select{padding-right:34px}
.form-control:focus,.form-select:focus{
  border-color:var(--ui-ink);box-shadow:0 0 0 3px rgba(200,242,77,.35);
}
.form-check-input{width:18px;height:18px;border-radius:6px;border:1px solid var(--ui-line);margin-top:3px}
.form-check-input:checked{background-color:var(--ui-ink);border-color:var(--ui-ink)}
.form-check-label{font-size:13px;color:var(--ui-muted)}
.err-text{font-size:13px;color:var(--ui-alert);display:none;margin-top:6px}
.is-invalid-soft{border-color:var(--ui-alert) !important}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .toc-card{top:150px}
}
@media (max-width:991.98px){
  .section{padding:64px 0 0}
  .page-hero{padding:28px 0 0}
  .anchor-wrap{top:88px}
  .toc-card{position:static;top:auto}
  .related-grid{grid-template-columns:1fr 1fr}
  .step{grid-template-columns:1fr;gap:12px;padding:28px 0}
  .step-no{font-size:32px}
  .step-no small{margin-top:4px}
  .cta-band{padding:38px 26px;margin-top:72px}
  .site-foot{margin-top:80px;padding-top:48px}
}
@media (max-width:767.98px){
  .related-grid{grid-template-columns:1fr}
  .hero-points{gap:12px}
}
@media (max-width:575.98px){
  .container{padding:0 16px}
  .nav-card{padding:10px 12px}
  .brand-text{font-size:15px}
  .step-no{font-size:28px}
  .cta-band{padding:30px 20px;border-radius:16px}
  #askModal .modal-content{padding:20px}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}

/* roulang page: article */
:root{
  --ui-ink:#14161A;
  --ui-paper:#F7F5F0;
  --ui-surface:#FFFFFF;
  --ui-sand:#EDE7DA;
  --ui-line:#E4E0D7;
  --ui-text:#1A1C20;
  --ui-muted:#5C6068;
  --ui-accent:#C8F24D;
  --ui-aux:#2F6D5E;
  --ui-alert:#E8543A;
  --r-card:16px;
  --r-nav:18px;
  --r-img:14px;
  --r-btn:10px;
  --sd-1:0 1px 2px rgba(20,22,26,.04), 0 12px 32px -18px rgba(20,22,26,.18);
  --sd-2:0 2px 6px rgba(20,22,26,.06), 0 22px 46px -20px rgba(20,22,26,.26);
  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px; --sp-5:24px; --sp-6:32px; --sp-7:48px; --sp-8:64px; --sp-9:88px;
  --mono:ui-monospace, "JetBrains Mono", "SFMono-Regular", Menlo, Consolas, monospace;
  --bs-primary:#14161A;
  --bs-body-bg:#F7F5F0;
  --bs-body-color:#1A1C20;
  --bs-border-color:#E4E0D7;
  --bs-border-radius:12px;
  --bs-link-color:#1A1C20;
  --bs-link-hover-color:#2F6D5E;
  --bs-font-sans-serif:system-ui, -apple-system, "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:system-ui, -apple-system, "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ui-text);
  background:var(--ui-paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--ui-text);text-decoration:none;transition:color .18s cubic-bezier(.2,.7,.3,1)}
a:hover{color:var(--ui-aux)}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--ui-ink);outline-offset:2px}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
@media (min-width:1400px){.container{max-width:1200px}}

/* ---------- 导航 ---------- */
.site-head{
  position:sticky;top:0;z-index:1030;
  background:var(--ui-paper);
  padding:14px 0 10px;
}
.nav-card{
  display:flex;align-items:center;gap:14px;
  background:var(--ui-surface);
  border:1px solid var(--ui-line);
  border-radius:var(--r-nav);
  box-shadow:var(--sd-1);
  padding:10px 14px;
  min-height:76px;
  transition:min-height .22s cubic-bezier(.2,.7,.3,1), box-shadow .22s cubic-bezier(.2,.7,.3,1);
}
.site-head.is-shrink .nav-card{min-height:64px;box-shadow:var(--sd-2)}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  background:var(--ui-ink);color:var(--ui-accent);
  display:flex;align-items:center;justify-content:center;font-size:15px;
  flex:0 0 auto;
}
.brand-text{font-weight:800;font-size:16px;letter-spacing:-.01em;white-space:nowrap}
.nav-mid{display:flex;align-items:center;gap:8px;flex:1 1 auto;justify-content:center}
.nav-tile{
  display:inline-flex;align-items:center;gap:7px;
  border:1px solid var(--ui-line);
  border-radius:12px;
  padding:8px 12px;
  font-size:14px;
  color:var(--ui-text);
  background:transparent;
  white-space:nowrap;
  transition:transform .18s cubic-bezier(.2,.7,.3,1), border-color .18s, box-shadow .18s, background .18s;
}
.nav-tile .nt-ico{color:var(--ui-aux);font-size:13px}
.nav-tile:hover{transform:translateY(-2px);border-color:var(--ui-accent);box-shadow:var(--sd-1)}
.nav-tile.active{background:var(--ui-sand);border-color:var(--ui-ink);font-weight:700}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-btn);
  border:1px solid var(--ui-line);background:var(--ui-surface);
  align-items:center;justify-content:center;
}
.nav-cta{margin-left:auto;flex:0 0 auto;font-size:14px}
.btn{
  border-radius:var(--r-btn);
  min-height:44px;
  display:inline-flex;align-items:center;justify-content:center;
  gap:8px;padding:10px 18px;font-weight:700;border:1px solid transparent;
  transition:background .18s cubic-bezier(.2,.7,.3,1), color .18s, border-color .18s, transform .18s;
}
.btn-lime{background:var(--ui-accent);border-color:var(--ui-accent);color:var(--ui-ink)}
.btn-lime:hover,.btn-lime:focus{background:var(--ui-ink);border-color:var(--ui-ink);color:var(--ui-accent)}
.btn-line{background:transparent;border-color:var(--ui-ink);color:var(--ui-ink)}
.btn-line:hover,.btn-line:focus{background:var(--ui-ink);border-color:var(--ui-ink);color:#fff}
.btn-w{width:100%}
@media (max-width:1199.98px){
  .nav-tile{padding:7px 10px;font-size:13px}
  .brand-text{font-size:15px}
}
@media (max-width:991.98px){
  .nav-card{flex-wrap:wrap;gap:10px}
  .nav-toggle{display:inline-flex;order:2;margin-left:auto}
  .nav-cta{order:3;margin-left:0;padding:10px 14px;font-size:13px}
  .nav-mid{order:4;flex:1 0 100%;flex-direction:column;align-items:stretch;justify-content:flex-start;gap:8px}
  .nav-tile{width:100%;justify-content:flex-start;padding:11px 12px;font-size:14px}
}
@media (min-width:992px){
  .nav-mid.collapse{display:flex !important;height:auto !important;visibility:visible !important}
}

/* ---------- 页面主区 ---------- */
.page-main{padding:32px 0 88px}
.crumb{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--ui-muted);margin-bottom:22px;align-items:center}
.crumb a{color:var(--ui-muted)}
.crumb a:hover{color:var(--ui-ink);text-decoration:underline;text-underline-offset:3px}
.crumb .sep{color:#B9B3A6}
.crumb .cur{color:#9A9AA0;max-width:320px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

.art-head{padding-bottom:24px;border-bottom:1px solid var(--ui-line);margin-bottom:32px}
.badge-cat{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--ui-aux);color:#fff;font-size:12px;letter-spacing:.02em;
  padding:5px 13px;border-radius:999px;font-weight:600;
}
.art-title{
  font-size:clamp(26px,3.6vw,42px);
  font-weight:800;line-height:1.18;letter-spacing:-.02em;
  margin:16px 0 14px;max-width:900px;
}
.art-meta{display:flex;flex-wrap:wrap;gap:20px;font-size:13px;color:var(--ui-muted)}
.art-meta span{display:inline-flex;align-items:center;gap:7px}
.art-meta i{color:var(--ui-aux);font-size:12px}
.art-meta .t{font-family:var(--mono);font-variant-numeric:tabular-nums}

.article-body{max-width:760px;font-size:17px;line-height:1.9;color:var(--ui-text)}
.article-body>p:first-child{font-size:17px;color:#33373D}
.article-body p{margin:0 0 20px}
.article-body h2{
  font-size:22px;font-weight:700;line-height:1.35;
  margin:40px 0 16px;padding-left:14px;
  border-left:4px solid var(--ui-accent);
}
.article-body h3{font-size:18px;font-weight:700;margin:28px 0 12px}
.article-body h4{font-size:16px;font-weight:700;margin:22px 0 10px}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:1.4em}
.article-body li{margin-bottom:8px}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;
  background:var(--ui-sand);
  border-left:3px solid var(--ui-ink);
  border-radius:0 12px 12px 0;
  color:#3B3F45;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:12px;margin:10px 0}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--ui-muted);text-align:center;margin-top:8px}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--ui-line);padding:10px 12px;text-align:left}
.article-body th{background:var(--ui-sand);font-weight:700}
.article-body a{color:var(--ui-aux);text-decoration:underline;text-underline-offset:3px}
.article-body code{
  font-family:var(--mono);font-size:14px;background:var(--ui-sand);
  padding:2px 6px;border-radius:6px;
}
.article-body hr{border:0;border-top:1px solid var(--ui-line);margin:32px 0}

.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin:44px 0 0;padding-top:24px;border-top:1px solid var(--ui-line)}
.tag{
  border:1px solid var(--ui-line);border-radius:999px;
  padding:6px 14px;font-size:13px;color:var(--ui-muted);background:var(--ui-surface);
}
.tag:hover{border-color:var(--ui-ink);color:var(--ui-ink)}

.art-empty{
  background:var(--ui-surface);border:1px solid var(--ui-line);
  border-radius:var(--r-card);box-shadow:var(--sd-1);
  padding:48px 28px;text-align:center;max-width:760px;
}
.art-empty .ico{
  width:56px;height:56px;border-radius:50%;background:var(--ui-sand);
  color:var(--ui-aux);display:flex;align-items:center;justify-content:center;
  margin:0 auto 16px;font-size:20px;
}
.art-empty h2{font-size:20px;font-weight:700;margin-bottom:8px}
.art-empty p{color:var(--ui-muted);font-size:14px;margin-bottom:20px}

/* ---------- 侧栏 ---------- */
.side-wrap{display:flex;flex-direction:column;gap:20px}
@media (min-width:992px){.side-wrap{position:sticky;top:104px}}
.side-card{
  background:var(--ui-surface);border:1px solid var(--ui-line);
  border-radius:var(--r-card);box-shadow:var(--sd-1);padding:20px 20px 16px;
}
.side-card h3{
  font-size:15px;font-weight:700;margin:0 0 12px;
  display:flex;align-items:center;gap:8px;
}
.side-card h3 i{color:var(--ui-aux);font-size:13px}
.hot-list{list-style:none;margin:0;padding:0}
.hot-list li a{
  display:flex;gap:10px;align-items:flex-start;
  padding:11px 0;border-bottom:1px solid var(--ui-line);
  font-size:14px;line-height:1.6;
}
.hot-list li:last-child a{border-bottom:0;padding-bottom:0}
.hot-list li:first-child a{padding-top:0}
.hot-list .num{font-family:var(--mono);font-size:12px;color:var(--ui-muted);line-height:1.8;flex:0 0 auto}
.hot-list a:hover{color:var(--ui-aux)}
.cat-links{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}
.cat-links a{
  display:flex;align-items:center;justify-content:space-between;
  border:1px solid var(--ui-line);border-radius:12px;
  padding:11px 13px;font-size:14px;
  transition:transform .18s cubic-bezier(.2,.7,.3,1), border-color .18s, box-shadow .18s;
}
.cat-links a:hover{transform:translateY(-2px);border-color:var(--ui-accent);box-shadow:var(--sd-1);color:var(--ui-text)}
.cat-links i{color:var(--ui-aux);font-size:12px}
.cta-card{
  background:var(--ui-ink);border:1px solid rgba(255,255,255,.08);
  border-radius:var(--r-card);padding:22px 20px;color:#fff;
}
.cta-card h3{font-size:16px;font-weight:700;color:#fff;margin:0 0 8px}
.cta-card p{font-size:13px;line-height:1.75;color:#B9BEC6;margin:0 0 16px}
.cta-card .btn-lime{width:100%}

/* ---------- 相关推荐 ---------- */
.rel-sec{margin-top:72px}
.sec-head{margin-bottom:26px}
.sec-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;color:var(--ui-aux);
  font-family:var(--mono);text-transform:uppercase;margin-bottom:10px;
}
.sec-kicker::before{content:"";width:22px;height:2px;background:var(--ui-accent);display:inline-block}
.sec-head h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;margin:0 0 8px;letter-spacing:-.01em}
.sec-head p{color:var(--ui-muted);font-size:14px;margin:0}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.rel-card{
  display:flex;flex-direction:column;
  background:var(--ui-surface);border:1px solid var(--ui-line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sd-1);
  color:var(--ui-text);
  transition:transform .18s cubic-bezier(.2,.7,.3,1), box-shadow .18s, border-color .18s;
}
.rel-card:hover{transform:translateY(-2px);box-shadow:var(--sd-2);border-color:#D6D0C4;color:var(--ui-text)}
.rel-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.rel-body{padding:18px 18px 20px;display:flex;flex-direction:column;flex:1 1 auto}
.rel-title{
  font-size:17px;font-weight:700;line-height:1.45;margin:0 0 8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rel-desc{
  font-size:14px;color:var(--ui-muted);line-height:1.7;margin:0 0 14px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rel-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;font-size:12px;color:var(--ui-muted)}
.pill-cat{background:var(--ui-aux);color:#fff;border-radius:999px;padding:3px 11px;font-size:12px;font-weight:600}
.rel-foot .t{font-family:var(--mono);font-variant-numeric:tabular-nums}
.rel-empty{font-size:14px;color:var(--ui-muted);padding:16px 0}
.back-row{margin-top:36px;display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 页脚 ---------- */
.site-foot{
  background:var(--ui-ink);color:#fff;
  padding:64px 0 28px;margin-top:88px;
}
.foot-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:16px;margin-bottom:16px}
.foot-brand .brand-mark{background:rgba(255,255,255,.06);color:var(--ui-accent)}
.foot-text{color:#9AA0A8;font-size:14px;line-height:1.85;margin:0;max-width:340px}
.site-foot h4{font-size:14px;font-weight:700;color:#fff;margin:0 0 16px}
.foot-links{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:11px}
.foot-links a{color:#9AA0A8;font-size:14px;position:relative;padding-left:0;transition:color .18s, padding-left .18s}
.foot-links a::before{
  content:"";position:absolute;left:-12px;top:50%;transform:translateY(-50%);
  width:6px;height:1px;background:var(--ui-accent);opacity:0;transition:opacity .18s;
}
.foot-links a:hover{color:var(--ui-accent);padding-left:10px}
.foot-links a:hover::before{opacity:1;left:0}
.foot-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:#7E848D;
}
.foot-bottom .mono{font-family:var(--mono)}

/* ---------- 表单与弹层 ---------- */
.form-label{font-size:13px;color:var(--ui-muted);margin-bottom:6px;display:block}
.form-control,.form-select{
  height:46px;border-radius:var(--r-btn);border:1px solid var(--ui-line);
  background:var(--ui-surface);font-size:14px;padding:10px 13px;
  box-shadow:none;
}
textarea.form-control{height:auto;min-height:96px;line-height:1.7}
.form-control:focus,.form-select:focus{
  border-color:var(--ui-ink);box-shadow:0 0 0 3px rgba(200,242,77,.35);
}
.form-control.is-err,.form-select.is-err{border-color:var(--ui-alert)}
.err-text{font-size:13px;color:var(--ui-alert);margin-top:6px;display:none}
.err-text.show{display:block}
.form-check-input{width:18px;height:18px;border:1px solid var(--ui-line);border-radius:5px;margin-top:5px}
.form-check-input:checked{background-color:var(--ui-ink);border-color:var(--ui-ink)}
.form-check-label{font-size:13px;color:var(--ui-muted);line-height:1.7}
.form-note{font-size:13px;color:var(--ui-muted);margin-top:14px}
.modal-backdrop{background-color:#14161A;--bs-backdrop-opacity:.55;backdrop-filter:blur(3px)}
#askModal .modal-dialog{max-width:780px}
#askModal .modal-content{
  position:relative;border:0;border-radius:20px;overflow:hidden;
  box-shadow:var(--sd-2);background:var(--ui-surface);
}
#askModal .btn-close{
  position:absolute;top:14px;right:14px;z-index:5;
  width:34px;height:34px;border-radius:50%;border:1px solid var(--ui-line);
  background-size:11px;opacity:1;background-color:#fff;
}
#askModal .btn-close:hover{border-color:var(--ui-ink)}
.modal-split{display:grid;grid-template-columns:1fr}
.modal-aside{background:var(--ui-ink);color:#fff;padding:30px 26px}
.modal-aside h3{font-size:19px;font-weight:700;margin:0 0 10px;color:#fff}
.modal-aside p{font-size:13px;color:#B9BEC6;line-height:1.8;margin:0 0 18px}
.modal-aside ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.modal-aside li{font-size:13px;color:#D6DAE0;display:flex;gap:9px;align-items:flex-start}
.modal-aside li i{color:var(--ui-accent);font-size:12px;margin-top:5px}
.modal-form{padding:30px 26px}
.modal-form h3{font-size:17px;font-weight:700;margin:0 0 18px}
@media (min-width:992px){
  .modal-split{grid-template-columns:0.85fr 1fr}
}

@media (max-width:991.98px){
  .art-title{max-width:none}
  .side-wrap{margin-top:8px}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .site-foot{padding:48px 0 24px;margin-top:64px}
  .page-main{padding:24px 0 64px}
}
@media (max-width:575.98px){
  .container{padding-left:16px;padding-right:16px}
  .rel-grid{grid-template-columns:1fr}
  .art-meta{gap:14px}
  .foot-bottom{flex-direction:column}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none !important;animation:none !important}
  .nav-tile:hover,.rel-card:hover,.cat-links a:hover{transform:none}
}

/* roulang page: category2 */
:root{
  --ui-ink:#14161A;
  --ui-paper:#F7F5F0;
  --ui-surface:#FFFFFF;
  --ui-sand:#EDE7DA;
  --ui-line:#E4E0D7;
  --ui-text:#1A1C20;
  --ui-muted:#5C6068;
  --ui-accent:#C8F24D;
  --ui-aux:#2F6D5E;
  --ui-alert:#E8543A;

  --r-card:16px;
  --r-nav:18px;
  --r-img:14px;
  --r-btn:10px;

  --sh-soft:0 1px 2px rgba(20,22,26,.04),0 12px 32px -18px rgba(20,22,26,.18);
  --sh-hover:0 2px 6px rgba(20,22,26,.06),0 22px 44px -20px rgba(20,22,26,.28);

  --sp-4:4px; --sp-8:8px; --sp-12:12px; --sp-16:16px;
  --sp-24:24px; --sp-32:32px; --sp-48:48px; --sp-64:64px;
  --sp-88:88px; --sp-120:120px;

  --ease:cubic-bezier(.2,.7,.3,1);

  --bs-body-bg:#F7F5F0;
  --bs-body-color:#1A1C20;
  --bs-border-color:#E4E0D7;
  --bs-border-radius:10px;
  --bs-border-radius-lg:16px;
  --bs-primary:#2F6D5E;
  --bs-primary-rgb:47,109,94;
  --bs-link-color:#1A1C20;
  --bs-link-hover-color:#2F6D5E;
  --bs-font-sans-serif:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --bs-body-font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ui-paper);
  color:var(--ui-text);
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--ui-text);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--ui-aux)}
h1,h2,h3,h4{margin:0;color:var(--ui-text);font-weight:700;line-height:1.25}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.mono{font-family:ui-monospace,"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--ui-ink);outline-offset:2px;border-radius:6px}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:clamp(16px,4vw,28px);
  padding-right:clamp(16px,4vw,28px);
}
@media (min-width:1400px){.container{max-width:1200px}}

/* ---------- 导航 ---------- */
.site-head{
  position:sticky;top:0;z-index:1030;
  padding:12px 0 0;
  background:linear-gradient(180deg,var(--ui-paper) 62%,rgba(247,245,240,0));
}
.nav-card{
  background:var(--ui-surface);
  border:1px solid var(--ui-line);
  border-radius:var(--r-nav);
  box-shadow:var(--sh-soft);
  display:flex;align-items:center;gap:16px;
  padding:10px 16px;
  min-height:76px;
  transition:min-height .2s var(--ease),box-shadow .2s var(--ease);
}
.site-head.is-scrolled .nav-card{min-height:64px;box-shadow:var(--sh-hover)}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:11px;
  background:var(--ui-ink);color:var(--ui-accent);
  display:flex;align-items:center;justify-content:center;
  font-size:15px;flex:0 0 auto;
}
.brand-text{font-weight:800;font-size:16px;letter-spacing:-.01em;white-space:nowrap}
.nav-toggle{
  margin-left:auto;
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--ui-line);background:#FBFAF7;color:var(--ui-ink);
  display:flex;align-items:center;justify-content:center;font-size:16px;
  transition:border-color .18s var(--ease),transform .18s var(--ease);
}
.nav-toggle:hover{border-color:var(--ui-accent);transform:translateY(-2px)}
.nav-mid{display:flex;gap:8px;align-items:center;margin-left:auto}
.nav-tile{
  display:flex;align-items:center;gap:8px;
  padding:9px 13px;
  border:1px solid var(--ui-line);
  border-radius:12px;
  background:#FBFAF7;
  font-size:14px;color:var(--ui-text);
  white-space:nowrap;
  transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease);
}
.nav-tile .nt-ico{color:var(--ui-aux);font-size:14px}
.nav-tile:hover{transform:translateY(-2px);border-color:var(--ui-accent);box-shadow:var(--sh-soft);color:var(--ui-ink)}
.nav-tile.active{background:var(--ui-ink);border-color:var(--ui-ink);color:#fff}
.nav-tile.active .nt-ico{color:var(--ui-accent)}
.btn-lime{
  background:var(--ui-accent);color:var(--ui-ink);
  border:1px solid var(--ui-accent);
  border-radius:var(--r-btn);
  font-weight:700;font-size:14px;
  min-height:44px;padding:11px 18px;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
.btn-lime:hover{background:var(--ui-ink);color:var(--ui-accent);border-color:var(--ui-ink);transform:translateY(-2px)}
.btn-ghost{
  background:transparent;color:var(--ui-ink);
  border:1px solid var(--ui-ink);
  border-radius:var(--r-btn);
  font-weight:700;font-size:14px;
  min-height:44px;padding:11px 18px;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  transition:background .18s var(--ease),color .18s var(--ease),transform .18s var(--ease);
}
.btn-ghost:hover{background:var(--ui-ink);color:var(--ui-accent);transform:translateY(-2px)}
.nav-cta{flex:0 0 auto;white-space:nowrap}
@media (max-width:1199.98px){
  .nav-tile .nt-txt{font-size:13px}
  .nav-tile{padding:9px 11px}
}
@media (max-width:991.98px){
  .nav-card{flex-wrap:wrap}
  .nav-mid{
    order:3;width:100%;flex-direction:column;align-items:stretch;
    gap:8px;margin:10px 0 4px;
    border-top:1px dashed var(--ui-line);padding-top:12px;
  }
  .nav-cta{margin-left:auto}
}
@media (min-width:992px){
  .nav-mid.collapse{display:flex}
}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sp-88) 0}
.section-tight{padding:var(--sp-64) 0}
.section-sand{background:var(--ui-sand)}
.sec-head{max-width:760px;margin-bottom:var(--sp-32)}
.sec-title{font-size:clamp(24px,3vw,34px);font-weight:700;letter-spacing:-.015em}
.sec-sub{margin-top:10px;color:var(--ui-muted);font-size:15px;max-width:640px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.06em;
  color:var(--ui-aux);
  background:rgba(47,109,94,.08);
  border:1px solid rgba(47,109,94,.18);
  border-radius:999px;padding:5px 12px;
  margin-bottom:14px;
}
@media (max-width:767.98px){
  .section{padding:56px 0}
  .section-tight{padding:48px 0}
}

/* ---------- 面包屑 ---------- */
.crumb{font-size:13px;color:var(--ui-muted);display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:20px}
.crumb a{color:var(--ui-muted)}
.crumb a:hover{color:var(--ui-aux)}
.crumb .sep{opacity:.5}
.crumb .cur{color:#8C9099}

/* ---------- 小 Hero ---------- */
.page-hero{padding:28px 0 0}
.hero-grid{
  display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:40px;align-items:center;
  padding-bottom:36px;border-bottom:1px solid var(--ui-line);
  position:relative;
}
.hero-grid::after{
  content:"版本说明";position:absolute;right:0;bottom:-14px;
  font-size:96px;font-weight:800;letter-spacing:-.04em;
  color:rgba(20,22,26,.04);pointer-events:none;user-select:none;line-height:1;
}
.page-hero h1{
  font-size:clamp(28px,3.6vw,44px);
  font-weight:800;line-height:1.16;letter-spacing:-.02em;
  max-width:16em;
}
.hero-lead{margin-top:16px;color:var(--ui-muted);font-size:16px;max-width:620px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.hero-points span{
  display:inline-flex;align-items:center;gap:7px;
  font-size:13px;color:var(--ui-text);
  border:1px solid var(--ui-line);background:var(--ui-surface);
  border-radius:999px;padding:7px 13px;
}
.hero-points i{color:var(--ui-aux);font-size:12px}
.hero-figure{
  margin:0;border-radius:var(--r-img);overflow:hidden;
  border:1px solid var(--ui-line);box-shadow:var(--sh-soft);
  background:var(--ui-surface);position:relative;
}
.hero-figure img{width:100%;aspect-ratio:16/10;object-fit:cover}
.hero-figure figcaption{
  font-size:12px;color:var(--ui-muted);
  padding:9px 14px;border-top:1px solid var(--ui-line);
  background:#FBFAF7;
}
@media (max-width:991.98px){
  .hero-grid{grid-template-columns:1fr;gap:28px}
  .hero-grid::after{display:none}
}

/* ---------- 锚点 pill ---------- */
.anchor-wrap{padding:22px 0 0;position:sticky;top:84px;z-index:1020;background:linear-gradient(180deg,var(--ui-paper) 70%,rgba(247,245,240,.75))}
.anchor-bar{
  display:flex;gap:10px;overflow-x:auto;padding:6px 2px 10px;
  scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;
}
.anchor-bar::-webkit-scrollbar{height:4px}
.anchor-bar::-webkit-scrollbar-thumb{background:var(--ui-line);border-radius:99px}
.pill{
  flex:0 0 auto;scroll-snap-align:start;
  font-size:13px;font-weight:700;color:var(--ui-muted);
  border:1px solid var(--ui-line);background:var(--ui-surface);
  border-radius:999px;padding:9px 16px;min-height:38px;
  display:inline-flex;align-items:center;gap:8px;
  transition:color .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease),transform .18s var(--ease);
}
.pill:hover{color:var(--ui-ink);border-color:var(--ui-accent);transform:translateY(-2px)}
.pill.active{background:var(--ui-ink);color:#fff;border-color:var(--ui-ink)}
@media (max-width:991.98px){.anchor-wrap{top:76px}}

/* ---------- 时间轴 ---------- */
.tl{position:relative;margin-top:12px}
.tl::before{content:"";position:absolute;top:12px;bottom:12px;left:182px;width:1px;background:var(--ui-line)}
.tl-item{
  display:grid;grid-template-columns:170px 24px minmax(0,1fr);
  padding:28px 0;border-bottom:1px solid var(--ui-line);
}
.tl-item:last-child{border-bottom:0;padding-bottom:6px}
.tl-meta{grid-column:1;text-align:right;padding-right:18px}
.tl-ver{
  font-family:ui-monospace,"JetBrains Mono",monospace;font-variant-numeric:tabular-nums;
  font-size:14px;font-weight:700;color:var(--ui-text);
  display:inline-block;background:var(--ui-sand);border-radius:8px;padding:3px 9px;
}
.tl-date{display:block;margin-top:8px;font-size:13px;color:var(--ui-muted)}
.tl-dot{grid-column:2;position:relative}
.tl-dot i{
  display:block;width:8px;height:8px;border-radius:50%;
  background:var(--ui-accent);margin:8px 0 0 8px;
  box-shadow:0 0 0 4px rgba(200,242,77,.22);
}
.tl-body{grid-column:3;padding-left:26px}
.tl-body h3{font-size:19px;font-weight:700}
.tl-body p{margin-top:10px;color:var(--ui-muted);font-size:15px;max-width:640px}
.bullets{margin-top:14px;display:grid;gap:8px}
.bullets li{
  position:relative;padding-left:18px;font-size:14px;color:var(--ui-text);
}
.bullets li::before{
  content:"";position:absolute;left:0;top:11px;
  width:6px;height:6px;border-radius:2px;background:var(--ui-aux);opacity:.65;
}
@media (max-width:767.98px){
  .tl::before{left:12px}
  .tl-item{grid-template-columns:22px minmax(0,1fr);padding:22px 0}
  .tl-meta{grid-column:2;grid-row:1;text-align:left;padding:0 0 8px}
  .tl-dot{grid-column:1;grid-row:1}
  .tl-dot i{margin:8px 0 0 8px}
  .tl-body{grid-column:2;grid-row:2;padding-left:0}
  .tl-date{display:inline-block;margin:0 0 0 10px}
}

/* ---------- 深色数据带 ---------- */
.band-dark{background:var(--ui-ink);color:#fff;padding:var(--sp-64) 0}
.band-dark .sec-title{color:#fff}
.band-dark .sec-sub{color:#9AA0A8}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;margin-top:8px}
.stat{padding-top:18px;position:relative}
.stat::before{content:"";position:absolute;top:0;left:0;width:26px;height:2px;background:var(--ui-accent)}
.stat-num{
  font-family:ui-monospace,"JetBrains Mono",ui-monospace,monospace;
  font-variant-numeric:tabular-nums;
  font-size:clamp(38px,4.4vw,52px);font-weight:700;color:var(--ui-accent);line-height:1.1;
}
.stat-num small{font-size:16px;font-weight:700;margin-left:4px;color:var(--ui-accent)}
.stat-txt{margin-top:8px;font-size:12px;color:#9AA0A8;letter-spacing:.02em}
.reveal{opacity:0;transform:translateY(14px)}
.reveal.in{opacity:1;transform:none;transition:opacity .5s var(--ease),transform .5s var(--ease)}
@media (max-width:767.98px){
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:22px}
}

/* ---------- 对照表 ---------- */
.table-wrap{
  border:1px solid var(--ui-line);border-radius:var(--r-card);
  background:var(--ui-surface);box-shadow:var(--sh-soft);overflow:hidden;
}
.table-scroll{overflow-x:auto}
.cmp-table{width:100%;border-collapse:collapse;min-width:720px}
.cmp-table th{
  background:var(--ui-sand);color:var(--ui-text);
  font-size:13px;font-weight:700;text-align:left;
  padding:14px 16px;border-bottom:1px solid var(--ui-line);white-space:nowrap;
}
.cmp-table td{
  padding:16px;border-bottom:1px solid var(--ui-line);
  font-size:14px;color:var(--ui-muted);vertical-align:top;
}
.cmp-table tbody tr:last-child td{border-bottom:0}
.cmp-table tbody tr:hover{background:#FBFAF7}
.cmp-table td strong{display:block;color:var(--ui-text);font-weight:700;font-size:15px}
.cmp-note{display:flex;gap:12px;align-items:flex-start;margin-top:18px;font-size:13px;color:var(--ui-muted)}
.cmp-note i{color:var(--ui-aux);margin-top:5px}

/* ---------- 核对方式 ---------- */
.check-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:32px;align-items:start}
.check-figure{margin:0;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--ui-line);box-shadow:var(--sh-soft);background:var(--ui-surface)}
.check-figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
.check-figure figcaption{font-size:12px;color:var(--ui-muted);padding:9px 14px;border-top:1px solid var(--ui-line);background:#FBFAF7}
.tip-row{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--ui-surface);border:1px solid var(--ui-line);border-radius:var(--r-card);
  padding:18px 20px;margin-bottom:12px;box-shadow:var(--sh-soft);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.tip-row:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);border-color:var(--ui-accent)}
.tip-ico{
  width:34px;height:34px;flex:0 0 auto;border-radius:10px;
  background:rgba(47,109,94,.1);color:var(--ui-aux);
  display:flex;align-items:center;justify-content:center;font-size:14px;
}
.tip-row h3{font-size:16px}
.tip-row p{margin-top:6px;font-size:14px;color:var(--ui-muted)}
@media (max-width:991.98px){.check-grid{grid-template-columns:1fr;gap:24px}}

/* ---------- FAQ ---------- */
.acc .accordion-item{
  background:var(--ui-surface);border:1px solid var(--ui-line);
  border-radius:14px;overflow:hidden;margin-bottom:10px;
}
.acc .accordion-button{
  background:transparent;color:var(--ui-text);
  font-size:16px;font-weight:700;padding:17px 20px;
  box-shadow:none;border:0;line-height:1.5;
}
.acc .accordion-button:not(.collapsed){
  background:#FBFAF7;color:var(--ui-text);
  box-shadow:inset 3px 0 0 var(--ui-accent);
}
.acc .accordion-button::after{
  content:"+";background-image:none;
  font-family:ui-monospace,"JetBrains Mono",monospace;
  font-size:18px;line-height:1;width:auto;height:auto;
  display:flex;align-items:center;justify-content:center;
  color:var(--ui-muted);transform:none;
  transition:transform .18s var(--ease),color .18s var(--ease);
}
.acc .accordion-button:not(.collapsed)::after{transform:rotate(45deg);color:var(--ui-aux)}
.acc .accordion-button:focus{box-shadow:inset 3px 0 0 var(--ui-accent)}
.acc .accordion-body{padding:0 20px 20px;color:var(--ui-muted);font-size:15px}
.acc .accordion-body strong{color:var(--ui-text)}

/* ---------- CTA 条 ---------- */
.cta-band{
  background:var(--ui-ink);border-radius:20px;color:#fff;
  padding:clamp(26px,4vw,44px);
  display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between;
  border:1px solid rgba(255,255,255,.08);
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,30px);letter-spacing:-.015em}
.cta-band p{margin-top:10px;color:#9AA0A8;font-size:15px;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.cta-actions .btn-ghost{color:#fff;border-color:rgba(255,255,255,.35)}
.cta-actions .btn-ghost:hover{background:var(--ui-accent);border-color:var(--ui-accent);color:var(--ui-ink)}

/* ---------- 相关分类 ---------- */
.link-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.link-card{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--ui-surface);border:1px solid var(--ui-line);
  border-radius:var(--r-card);padding:20px;box-shadow:var(--sh-soft);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.link-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);border-color:var(--ui-accent)}
.link-card .lc-ico{
  width:36px;height:36px;flex:0 0 auto;border-radius:10px;
  background:var(--ui-ink);color:var(--ui-accent);
  display:flex;align-items:center;justify-content:center;font-size:14px;
}
.link-card h3{font-size:16px;position:relative;display:inline-block}
.link-card:hover h3::after{width:100%}
.link-card h3::after{
  content:"";position:absolute;left:0;bottom:-3px;height:2px;width:0;
  background:var(--ui-accent);transition:width .22s var(--ease);
}
.link-card p{margin-top:8px;font-size:13px;color:var(--ui-muted)}
.link-card .lc-arrow{margin-left:auto;color:var(--ui-muted);font-size:13px;align-self:center}
.link-card.cur{border-color:var(--ui-ink);background:#FBFAF7}
@media (max-width:991.98px){.link-cards{grid-template-columns:1fr}}

/* ---------- 表单与弹层 ---------- */
.form-label{font-size:13px;color:var(--ui-muted);margin-bottom:6px}
.form-control,.form-select{
  min-height:46px;border:1px solid var(--ui-line);border-radius:10px;
  background:var(--ui-surface);font-size:15px;color:var(--ui-text);
}
.form-control:focus,.form-select:focus{
  border-color:var(--ui-ink);
  box-shadow:0 0 0 3px rgba(200,242,77,.35);
}
.form-control::placeholder{color:#A3A7AE}
.form-check-input{border-color:var(--ui-line);width:18px;height:18px;margin-top:4px}
.form-check-input:checked{background-color:var(--ui-ink);border-color:var(--ui-ink)}
.form-check-input:focus{box-shadow:0 0 0 3px rgba(200,242,77,.35);border-color:var(--ui-ink)}
.form-check-label{font-size:13px;color:var(--ui-muted);line-height:1.7}
.err-txt{display:none;font-size:13px;color:var(--ui-alert);margin-top:6px}
.is-invalid-soft{border-color:var(--ui-alert)!important}

.modal-content{
  border:1px solid var(--ui-line);border-radius:20px;
  background:var(--ui-surface);overflow:hidden;
  box-shadow:0 30px 70px -30px rgba(20,22,26,.55);
}
.modal-backdrop.show{opacity:.55;backdrop-filter:blur(3px)}
.modal-dialog{max-width:520px}
@media (min-width:992px){#askModal .modal-dialog{max-width:780px}}
.modal-body{padding:clamp(22px,3vw,32px)}
.modal-x{
  position:absolute;top:14px;right:14px;z-index:5;
  width:38px;height:38px;border-radius:50%;
  border:1px solid var(--ui-line);background:var(--ui-surface);color:var(--ui-muted);
  display:flex;align-items:center;justify-content:center;
  transition:border-color .18s var(--ease),color .18s var(--ease),transform .18s var(--ease);
}
.modal-x:hover{border-color:var(--ui-ink);color:var(--ui-ink);transform:rotate(90deg)}
.ask-aside h3{font-size:20px;line-height:1.4}
.ask-aside ul{margin-top:16px;display:grid;gap:10px}
.ask-aside li{display:flex;gap:10px;font-size:14px;color:var(--ui-muted)}
.ask-aside i{color:var(--ui-aux);margin-top:6px;font-size:12px}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--ui-ink);color:#9AA0A8;padding:64px 0 22px;margin-top:var(--sp-88)}
.foot-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:16px;margin-bottom:14px}
.foot-text{font-size:14px;color:#9AA0A8;max-width:360px}
.site-foot h4{color:#fff;font-size:14px;font-weight:700;margin-bottom:16px}
.foot-links li{margin-bottom:10px}
.foot-links a{
  position:relative;font-size:14px;color:#9AA0A8;padding-left:0;
  transition:color .18s var(--ease),padding-left .18s var(--ease);
}
.foot-links a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:0;height:2px;background:var(--ui-accent);transition:width .18s var(--ease);
}
.foot-links a:hover{color:var(--ui-accent);padding-left:12px}
.foot-links a:hover::before{width:6px}
.foot-bottom{
  margin-top:44px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:#7C828A;
}
@media (max-width:767.98px){
  .site-foot{padding-top:48px}
  .foot-text{max-width:none}
}

/* ---------- 动效可访问性 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none!important;animation:none!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category3 */
:root{
  --ui-ink:#14161A;
  --ui-paper:#F7F5F0;
  --ui-surface:#FFFFFF;
  --ui-sand:#EDE7DA;
  --ui-line:#E4E0D7;
  --ui-text:#1A1C20;
  --ui-muted:#5C6068;
  --ui-accent:#C8F24D;
  --ui-aux:#2F6D5E;
  --ui-alert:#E8543A;

  --r-card:16px;
  --r-nav:18px;
  --r-img:14px;
  --r-btn:10px;
  --r-input:10px;

  --sh-soft:0 1px 2px rgba(20,22,26,.04), 0 12px 32px -18px rgba(20,22,26,.18);
  --sh-lift:0 2px 4px rgba(20,22,26,.06), 0 20px 44px -20px rgba(20,22,26,.26);

  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px; --sp-5:24px; --sp-6:32px; --sp-7:48px; --sp-8:64px; --sp-9:88px; --sp-10:120px;

  --ease:cubic-bezier(.2,.7,.3,1);

  --bs-primary:#2F6D5E;
  --bs-body-bg:#F7F5F0;
  --bs-body-color:#1A1C20;
  --bs-border-color:#E4E0D7;
  --bs-border-radius:10px;
  --bs-font-sans-serif:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--ui-paper);
  color:var(--ui-text);
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--ui-aux);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--ui-ink)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--ui-text);letter-spacing:-.01em}
p{margin:0 0 var(--sp-4)}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--ui-ink);outline-offset:2px;border-radius:6px}

.mono{font-family:ui-monospace,"JetBrains Mono",monospace;font-variant-numeric:tabular-nums;letter-spacing:0}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1400px){.container{padding:0 5vw}}

/* ============ 导航 ============ */
.site-head{
  position:sticky;top:0;z-index:1035;
  padding:14px 0;
  background:linear-gradient(180deg,rgba(247,245,240,.96),rgba(247,245,240,.82));
  backdrop-filter:saturate(1.2) blur(6px);
  transition:padding .22s var(--ease);
}
.site-head.scrolled{padding:8px 0}
.nav-card{
  display:flex;align-items:center;gap:18px;
  min-height:76px;padding:10px 16px;
  background:var(--ui-surface);
  border:1px solid var(--ui-line);
  border-radius:var(--r-nav);
  box-shadow:var(--sh-soft);
  transition:min-height .22s var(--ease),box-shadow .22s var(--ease);
}
.site-head.scrolled .nav-card{min-height:64px;box-shadow:var(--sh-lift)}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ui-ink)}
.brand:hover{color:var(--ui-ink)}
.brand-mark{
  width:38px;height:38px;border-radius:11px;
  display:grid;place-items:center;
  background:var(--ui-ink);color:var(--ui-accent);
  font-size:15px;flex:0 0 auto;
}
.brand-text{font-weight:800;font-size:17px;letter-spacing:-.02em;white-space:nowrap}
.nav-mid{display:flex;align-items:center;gap:8px;margin-left:auto;margin-right:auto}
.nav-tile{
  display:flex;align-items:center;gap:8px;
  padding:8px 12px;border-radius:12px;
  border:1px solid transparent;
  color:var(--ui-muted);font-size:14px;font-weight:600;
  transition:transform .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease),background .18s var(--ease);
}
.nav-tile .nt-ico{font-size:13px;color:var(--ui-aux)}
.nav-tile:hover{transform:translateY(-2px);border-color:var(--ui-accent);color:var(--ui-ink);background:#FCFDF7}
.nav-tile.active{background:var(--ui-sand);color:var(--ui-ink);border-color:var(--ui-line)}
.nav-tile.active .nt-ico{color:var(--ui-ink)}
.nav-toggle{
  margin-left:auto;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--ui-line);background:var(--ui-surface);color:var(--ui-ink);
}
.nav-cta{flex:0 0 auto;white-space:nowrap}
.btn-lime{
  background:var(--ui-accent);border:1px solid var(--ui-accent);color:var(--ui-ink);
  font-weight:700;font-size:14px;min-height:44px;
  padding:10px 18px;border-radius:var(--r-btn);
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
.btn-lime:hover,.btn-lime:focus{background:var(--ui-ink);border-color:var(--ui-ink);color:var(--ui-accent);transform:translateY(-1px)}
.btn-ghost{
  background:transparent;border:1px solid var(--ui-ink);color:var(--ui-ink);
  font-weight:700;font-size:14px;min-height:44px;
  padding:10px 18px;border-radius:var(--r-btn);
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  transition:background .18s var(--ease),color .18s var(--ease);
}
.btn-ghost:hover{background:var(--ui-ink);color:var(--ui-accent)}
.btn-ghost-light{
  background:transparent;border:1px solid rgba(255,255,255,.34);color:#fff;
  font-weight:700;font-size:14px;min-height:44px;padding:10px 18px;border-radius:var(--r-btn);
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn-ghost-light:hover{background:var(--ui-accent);border-color:var(--ui-accent);color:var(--ui-ink)}

@media (max-width:1199.98px){
  .nav-mid{gap:4px}
  .nav-tile{padding:8px 10px;font-size:13px}
}
@media (min-width:992px){
  .nav-mid{display:flex!important}
}
@media (max-width:991.98px){
  .nav-card{flex-wrap:wrap}
  .nav-mid{
    width:100%;flex-direction:column;align-items:stretch;
    margin:8px 0 4px;padding-top:10px;border-top:1px solid var(--ui-line);
  }
  .nav-tile{justify-content:flex-start;padding:12px}
  .nav-cta{order:3}
  .nav-toggle{order:2}
}

/* ============ 内页 Hero ============ */
.sub-hero{padding:44px 0 0}
.crumb{font-size:13px;color:var(--ui-muted);display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:18px}
.crumb a{color:var(--ui-muted)}
.crumb a:hover{color:var(--ui-ink)}
.crumb .sep{opacity:.5}
.crumb .cur{color:#9AA0A8}
.sub-hero-grid{display:grid;grid-template-columns:1.55fr 1fr;gap:40px;align-items:center}
.sub-hero h1{font-size:clamp(30px,4.2vw,48px);font-weight:800;line-height:1.15;letter-spacing:-.02em;margin-bottom:16px}
.sub-hero .lead{font-size:16px;color:var(--ui-muted);max-width:640px}
.hero-tagrow{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 18px}
.tag-pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 12px;border-radius:999px;font-size:12.5px;
  background:var(--ui-surface);border:1px solid var(--ui-line);color:var(--ui-muted);
}
.tag-pill i{color:var(--ui-aux);font-size:11px}
.hero-figure{
  border-radius:var(--r-card);overflow:hidden;border:1px solid var(--ui-line);
  box-shadow:var(--sh-soft);aspect-ratio:16/10;
}
.hero-figure img{width:100%;height:100%;object-fit:cover}
@media (max-width:991.98px){
  .sub-hero-grid{grid-template-columns:1fr;gap:24px}
  .sub-hero{padding-top:28px}
}

/* ============ 锚点 pill 条 ============ */
.anchor-bar{
  position:sticky;top:88px;z-index:1020;
  margin:32px 0 0;padding:10px;
  background:rgba(255,255,255,.94);
  border:1px solid var(--ui-line);border-radius:999px;
  box-shadow:var(--sh-soft);
  display:flex;gap:8px;overflow-x:auto;
  scroll-snap-type:x proximity;
  -webkit-overflow-scrolling:touch;
}
.anchor-bar::-webkit-scrollbar{height:5px}
.anchor-bar::-webkit-scrollbar-thumb{background:var(--ui-line);border-radius:999px}
.anchor-bar a{
  scroll-snap-align:start;flex:0 0 auto;
  padding:8px 16px;border-radius:999px;font-size:13.5px;font-weight:600;
  color:var(--ui-muted);border:1px solid transparent;white-space:nowrap;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.anchor-bar a:hover{background:var(--ui-sand);color:var(--ui-ink);border-color:var(--ui-line)}
.anchor-bar a.on{background:var(--ui-ink);color:var(--ui-accent);border-color:var(--ui-ink)}

/* ============ 主内容区 ============ */
.main-wrap{padding:64px 0 0}
.sec-head{margin-bottom:28px;max-width:760px}
.sec-head h2{font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.25;margin-bottom:8px}
.sec-head p{color:var(--ui-muted);font-size:15px;margin:0}
.sec-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:.04em;color:var(--ui-aux);
  margin-bottom:10px;
}
.sec-kicker::before{content:"";width:22px;height:2px;background:var(--ui-accent)}

.qa-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.qa-card{
  background:var(--ui-surface);border:1px solid var(--ui-line);
  border-radius:var(--r-card);padding:24px;
  box-shadow:var(--sh-soft);
  scroll-margin-top:150px;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.qa-card:hover{transform:translateY(-2px);box-shadow:var(--sh-lift);border-color:#DCD6C9}
.qa-top{display:flex;align-items:flex-start;gap:12px;margin-bottom:12px}
.qa-ico{
  width:40px;height:40px;border-radius:12px;flex:0 0 auto;
  display:grid;place-items:center;
  background:var(--ui-sand);color:var(--ui-aux);font-size:15px;
}
.qa-card h3{font-size:18px;font-weight:700;line-height:1.4}
.qa-card p{font-size:14.5px;color:var(--ui-muted);margin:0 0 14px}
.qa-steps{margin:0 0 14px}
.qa-steps li{
  position:relative;padding-left:26px;font-size:14px;color:var(--ui-text);
  margin-bottom:8px;line-height:1.7;
}
.qa-steps li::before{
  counter-increment:qstep;content:counter(qstep);
  position:absolute;left:0;top:2px;
  width:18px;height:18px;border-radius:6px;
  background:var(--ui-ink);color:var(--ui-accent);
  font-size:11px;font-weight:700;display:grid;place-items:center;
  font-family:ui-monospace,"JetBrains Mono",monospace;
}
.qa-steps{counter-reset:qstep}
.qa-badges{display:flex;flex-wrap:wrap;gap:8px}
.badge-cat{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--ui-aux);color:#fff;font-size:12px;font-weight:600;
  padding:5px 11px;border-radius:999px;
}
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--ui-sand);color:var(--ui-muted);font-size:12px;font-weight:600;
  padding:5px 11px;border-radius:999px;
}
.badge-alert{
  display:inline-flex;align-items:center;gap:6px;
  background:#FCEBE7;color:#B8381F;font-size:12px;font-weight:600;
  padding:5px 11px;border-radius:999px;
}

/* ============ 速查侧栏 ============ */
.rail{position:sticky;top:88px}
.rail-card{
  background:var(--ui-surface);border:1px solid var(--ui-line);
  border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-soft);
  margin-bottom:20px;
}
.rail-card h3{font-size:16px;font-weight:700;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.rail-card h3 i{color:var(--ui-aux);font-size:14px}
.rail-list li{
  font-size:14px;color:var(--ui-muted);padding:10px 0;
  border-bottom:1px dashed var(--ui-line);display:flex;gap:10px;align-items:flex-start;
}
.rail-list li:last-child{border-bottom:none;padding-bottom:0}
.rail-list li i{color:var(--ui-aux);font-size:12px;margin-top:6px;flex:0 0 auto}
.rail-list b{color:var(--ui-text);font-weight:700}
.rail-figure{border-radius:var(--r-img);overflow:hidden;border:1px solid var(--ui-line);margin-bottom:16px}
.rail-figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
.rail-cta{
  background:var(--ui-ink);border-color:rgba(255,255,255,.08);
  color:#fff;
}
.rail-cta h3{color:#fff}
.rail-cta p{color:#9AA0A8;font-size:14px;margin-bottom:16px}
.rail-cta .btn-lime{width:100%}
.rail-note{font-size:12.5px;color:#7C828B;margin:12px 0 0}

/* ============ FAQ ============ */
.faq-wrap{padding:88px 0 0}
.accordion-item{
  background:var(--ui-surface);
  border:1px solid var(--ui-line)!important;
  border-radius:14px!important;
  margin-bottom:10px;overflow:hidden;
}
.accordion-button{
  background:var(--ui-surface);color:var(--ui-text);
  font-weight:700;font-size:16px;padding:18px 20px;
  border-radius:14px!important;box-shadow:none!important;
  transition:background .18s var(--ease),color .18s var(--ease);
}
.accordion-button::after{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  background-image:none!important;width:18px;height:18px;
  display:grid;place-items:center;font-size:13px;color:var(--ui-muted);
  transition:transform .22s var(--ease),color .22s var(--ease);
}
.accordion-button:not(.collapsed)::after{transform:rotate(45deg);color:var(--ui-ink)}
.accordion-button:not(.collapsed){background:var(--ui-surface);color:var(--ui-ink)}
.accordion-button:hover{background:#FCFCF8}
.accordion-body{
  font-size:15px;color:var(--ui-muted);
  padding:0 20px 20px;border-left:3px solid transparent;
  transition:border-color .22s var(--ease);
}
.accordion-item:has(.accordion-button:not(.collapsed)){box-shadow:var(--sh-soft)}
.accordion-item:has(.accordion-button:not(.collapsed)) .accordion-body{border-left-color:var(--ui-accent);padding-left:20px}

/* ============ CTA 条 ============ */
.cta-band{
  margin-top:88px;
  background:var(--ui-ink);border-radius:22px;
  padding:48px;color:#fff;
  display:grid;grid-template-columns:1.4fr 1fr;gap:32px;align-items:center;
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,30px);font-weight:700;margin-bottom:10px}
.cta-band p{color:#9AA0A8;font-size:15px;margin:0}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}
@media (max-width:767.98px){
  .cta-band{grid-template-columns:1fr;padding:32px 24px}
  .cta-actions{justify-content:flex-start}
}

/* ============ 相关分类 ============ */
.rel-wrap{padding:88px 0 0}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.rel-card{
  display:flex;flex-direction:column;
  background:var(--ui-surface);border:1px solid var(--ui-line);
  border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-soft);color:var(--ui-text);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.rel-card:hover{transform:translateY(-2px);box-shadow:var(--sh-lift);border-color:var(--ui-accent);color:var(--ui-text)}
.rel-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.rel-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-body h3{font-size:17px;font-weight:700}
.rel-body p{font-size:14px;color:var(--ui-muted);margin:0}
.rel-more{
  margin-top:auto;font-size:13.5px;font-weight:700;color:var(--ui-aux);
  display:inline-flex;align-items:center;gap:8px;
}
.rel-card:hover .rel-more{color:var(--ui-ink)}
.rel-more i{transition:transform .18s var(--ease)}
.rel-card:hover .rel-more i{transform:translateX(4px)}

/* ============ 页脚 ============ */
.site-foot{
  margin-top:104px;background:var(--ui-ink);color:#fff;
  padding:64px 0 0;
}
.foot-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;color:#fff;margin-bottom:16px}
.foot-brand .brand-mark{background:rgba(255,255,255,.08);color:var(--ui-accent)}
.site-foot h4{font-size:14px;color:#fff;font-weight:700;margin-bottom:16px}
.foot-text{color:#9AA0A8;font-size:14px;line-height:1.8;margin:0}
.foot-links li{margin-bottom:10px}
.foot-links a{
  color:#9AA0A8;font-size:14px;position:relative;padding-left:0;
  transition:color .18s var(--ease),padding-left .18s var(--ease);
}
.foot-links a::before{
  content:"";position:absolute;left:0;top:50%;width:0;height:1px;
  background:var(--ui-accent);transform:translateY(-50%);
  transition:width .18s var(--ease);
}
.foot-links a:hover{color:var(--ui-accent);padding-left:12px}
.foot-links a:hover::before{width:6px}
.foot-bottom{
  margin-top:48px;padding:20px 0;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:#7C828B;
}

/* ============ 弹层 ============ */
.modal-backdrop.show{background:rgba(20,22,26,.55);backdrop-filter:blur(3px)}
#askModal .modal-dialog{max-width:520px}
@media (min-width:992px){#askModal .modal-dialog{max-width:760px}}
#askModal .modal-content{
  border:none;border-radius:20px;overflow:hidden;
  background:var(--ui-surface);box-shadow:0 32px 80px -24px rgba(20,22,26,.42);
}
.modal-x{
  position:absolute;top:14px;right:14px;z-index:5;
  width:34px;height:34px;border-radius:999px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);
  color:#fff;display:grid;place-items:center;font-size:13px;
  transition:background .18s var(--ease),color .18s var(--ease);
}
@media (max-width:991.98px){
  .modal-x{background:var(--ui-surface);border-color:var(--ui-line);color:var(--ui-ink)}
}
.modal-x:hover{background:var(--ui-accent);color:var(--ui-ink);border-color:var(--ui-accent)}
.modal-aside{
  background:var(--ui-ink);color:#fff;padding:36px 28px;
}
.modal-aside h3{color:#fff;font-size:20px;font-weight:700;margin-bottom:14px;line-height:1.4}
.modal-aside p{color:#9AA0A8;font-size:14px;margin-bottom:18px}
.modal-aside ul li{color:#C9CDD3;font-size:14px;display:flex;gap:10px;margin-bottom:10px}
.modal-aside ul li i{color:var(--ui-accent);font-size:12px;margin-top:6px}
.modal-form{padding:36px 28px}
@media (max-width:991.98px){
  .modal-aside{padding:28px 24px}
  .modal-form{padding:24px}
}
.form-label{font-size:13px;color:var(--ui-muted);font-weight:600;margin-bottom:6px}
.form-control,.form-select{
  height:46px;border-radius:var(--r-input);
  border:1px solid var(--ui-line);background:var(--ui-surface);
  font-size:14.5px;color:var(--ui-text);box-shadow:none;
}
textarea.form-control{height:auto;min-height:96px;padding-top:12px}
.form-control:focus,.form-select:focus{
  border-color:var(--ui-ink);
  box-shadow:0 0 0 3px rgba(200,242,77,.35);
}
.form-check-input{border-color:var(--ui-line);width:18px;height:18px;margin-top:3px}
.form-check-input:checked{background-color:var(--ui-aux);border-color:var(--ui-aux)}
.form-check-input:focus{box-shadow:0 0 0 3px rgba(200,242,77,.35);border-color:var(--ui-ink)}
.form-check-label{font-size:13px;color:var(--ui-muted)}
.err-text{font-size:13px;color:var(--ui-alert);margin-top:6px;display:none}
.is-invalid-c{border-color:var(--ui-alert)!important}
.is-invalid-c + .err-text{display:block}

/* ============ 动效与可达性 ============ */
.fade-up{opacity:0;transform:translateY(14px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.fade-up.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  .fade-up{opacity:1;transform:none}
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:991.98px){
  .qa-grid{grid-template-columns:1fr}
  .rail{position:static;margin-top:32px}
  .main-wrap{padding-top:48px}
  .faq-wrap,.rel-wrap{padding-top:64px}
  .cta-band{margin-top:64px}
  .site-foot{margin-top:72px}
  .anchor-bar{top:78px}
}
@media (max-width:767.98px){
  .rel-grid{grid-template-columns:1fr}
  .sub-hero h1{font-size:clamp(26px,7vw,34px)}
  .container{padding:0 16px}
  .qa-card{padding:20px}
  .site-foot{padding-top:48px}
}