/* roulang page: index */
:root{
  --primary:#FF5A1F;
  --primary-dark:#D93F06;
  --primary-soft:#FFF0E8;
  --accent:#0FB5A6;
  --yellow:#FFC845;
  --ink:#171326;
  --title:#1C1728;
  --text:#3B3548;
  --muted:#7E7889;
  --border:#EDE9F2;
  --bg:#FFFFFF;
  --warm:#FFF8F4;
  --panel:#F5F6FA;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-card:0 1px 2px rgba(23,19,38,.06),0 10px 28px -14px rgba(28,23,40,.16);
  --shadow-hover:0 2px 6px rgba(23,19,38,.08),0 20px 38px -16px rgba(28,23,40,.28);
  --font-cn:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei',system-ui,sans-serif;
  --font-num:'Inter','Roboto',Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html,body{overflow-x:hidden;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--title);font-family:var(--font-cn);font-weight:700;}
p{margin:0;}
a{color:inherit;text-decoration:none;transition:color .18s ease;}
img{max-width:100%;display:block;}
ul{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.grid-container{max-width:1248px;padding-left:20px;padding-right:20px;margin-left:auto;margin-right:auto;}
@media screen and (min-width:992px){
  .grid-container{padding-left:24px;padding-right:24px;}
}
.section{padding:52px 0;}
@media screen and (min-width:768px){
  .section{padding:80px 0;}
}
@media screen and (min-width:1200px){
  .section{padding:92px 0;}
}
.section-title{
  position:relative;
  font-size:23px;
  font-weight:700;
  line-height:1.3;
  padding-left:14px;
  letter-spacing:-.2px;
}
.section-title::before{
  content:"";
  position:absolute;
  left:0;top:6px;
  width:4px;height:22px;
  border-radius:2px;
  background:var(--primary);
}
@media screen and (min-width:768px){
  .section-title{font-size:30px;padding-left:16px;}
  .section-title::before{height:28px;top:5px;}
}
.section-sub{margin-top:10px;color:var(--muted);font-size:15px;max-width:660px;}
.section-head{display:flex;flex-wrap:wrap;gap:16px;align-items:flex-end;justify-content:space-between;margin-bottom:28px;}
@media screen and (min-width:768px){.section-head{margin-bottom:40px;}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 26px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px -12px rgba(255,90,31,.9);}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--title);border-color:var(--border);}
.btn-ghost:hover{color:var(--primary);border-color:rgba(255,90,31,.45);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-block{width:100%;}
.text-link{
  position:relative;
  display:inline-block;
  font-size:14px;
  font-weight:600;
  color:var(--primary);
  padding-bottom:2px;
}
.text-link::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:0;height:2px;
  background:var(--primary);
  transition:width .25s ease;
}
.text-link:hover::after{width:100%;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(6px);
  border-bottom:1px solid var(--border);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 22px -14px rgba(28,23,40,.35);}
.nav-wrap{
  display:flex;
  flex-direction:column;
  gap:14px;
  padding:14px 0 12px;
  transition:padding .2s ease;
}
.site-header.is-scrolled .nav-wrap{padding:10px 0 8px;}
.nav-top{display:flex;align-items:center;gap:20px;}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:38px;height:38px;
  border-radius:11px;
  background:linear-gradient(135deg,var(--primary) 0%,#FF8A4C 100%);
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-weight:800;font-size:19px;
  font-family:var(--font-num);
  box-shadow:0 8px 18px -10px rgba(255,90,31,.95);
}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-text b{font-size:16px;color:var(--title);font-weight:800;letter-spacing:-.2px;}
.logo-text span{font-size:11.5px;color:var(--muted);letter-spacing:.5px;}
.search-form{
  position:relative;
  display:flex;
  align-items:center;
  flex:1;
  min-width:0;
  max-width:560px;
  height:46px;
  border:1px solid var(--border);
  border-radius:var(--radius-pill);
  background:var(--panel);
  padding:0 5px 0 42px;
  transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease;
}
.search-form:focus-within{
  background:#fff;
  border-color:var(--primary);
  box-shadow:0 0 0 4px rgba(255,90,31,.12);
}
.search-form svg{position:absolute;left:16px;top:50%;transform:translateY(-50%);width:17px;height:17px;fill:none;stroke:var(--muted);stroke-width:2;}
.search-form input{
  flex:1;min-width:0;
  height:100%;
  border:0;background:transparent;outline:none;
  font-size:14px;color:var(--title);
}
.search-form input::placeholder{color:#A49FB0;}
.search-form button{
  height:36px;
  padding:0 20px;
  border:0;
  border-radius:var(--radius-pill);
  background:var(--primary);
  color:#fff;
  font-size:14px;
  font-weight:600;
  cursor:pointer;
  transition:background-color .18s ease;
}
.search-form button:hover{background:var(--primary-dark);}
.nav-cats{
  display:flex;
  gap:10px;
  overflow-x:auto;
  padding-bottom:2px;
  scrollbar-width:none;
}
.nav-cats::-webkit-scrollbar{display:none;}
.nav-cats a{
  flex:0 0 auto;
  padding:7px 16px;
  border-radius:var(--radius-pill);
  background:var(--panel);
  border:1px solid transparent;
  font-size:13.5px;
  color:var(--text);
  white-space:nowrap;
  transition:all .18s ease;
}
.nav-cats a:hover{color:var(--primary);background:var(--primary-soft);border-color:rgba(255,90,31,.3);}
.nav-cats a.active{background:var(--primary);color:#fff;}
@media screen and (max-width:767px){
  .nav-top{flex-wrap:wrap;}
  .search-form{max-width:none;order:3;width:100%;flex-basis:100%;}
}
@media screen and (min-width:992px){
  .nav-wrap{flex-direction:row;align-items:center;gap:26px;padding:16px 0 14px;}
  .nav-top{gap:26px;}
  .nav-cats{padding-bottom:0;}
}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  background:linear-gradient(180deg,#FFF8F4 0%,#FFFFFF 100%);
  padding:44px 0 52px;
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;
  right:-120px;top:-140px;
  width:420px;height:420px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(255,90,31,.14) 0%,rgba(255,90,31,0) 70%);
}
@media screen and (min-width:768px){.hero{padding:70px 0 82px;}}
.hero-inner{position:relative;z-index:2;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 15px;
  border-radius:var(--radius-pill);
  background:var(--primary-soft);
  color:var(--primary-dark);
  font-size:13px;font-weight:600;
}
.hero-badge i{width:7px;height:7px;border-radius:50%;background:var(--accent);display:inline-block;}
.hero h1{
  margin-top:18px;
  font-size:clamp(27px,4.4vw,52px);
  font-weight:800;
  line-height:1.2;
  letter-spacing:-.5px;
}
.hero h1 em{font-style:normal;color:var(--primary);}
.hero-sub{
  margin-top:16px;
  font-size:16.5px;
  color:var(--text);
  max-width:520px;
}
@media screen and (min-width:768px){.hero-sub{font-size:18px;}}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.hero-badges span{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 14px;
  border-radius:var(--radius-pill);
  background:#fff;
  border:1px solid var(--border);
  font-size:13px;
  color:var(--text);
}
.hero-badges span::before{
  content:"";
  width:6px;height:6px;border-radius:50%;
  background:var(--primary);
}
.hero-visual{margin-top:34px;}
@media screen and (min-width:992px){.hero-visual{margin-top:0;}}
.hero-visual figure{
  position:relative;
  margin:0;
  border-radius:16px;
  overflow:hidden;
  border:1px solid rgba(255,90,31,.2);
  box-shadow:var(--shadow-card);
  background:var(--primary-soft);
  aspect-ratio:16/10;
}
.hero-visual img{width:100%;height:100%;object-fit:cover;}
.hero-float{
  position:absolute;
  left:16px;bottom:16px;
  background:rgba(23,19,38,.82);
  color:#fff;
  border-radius:12px;
  padding:12px 16px;
  font-size:13px;
  line-height:1.5;
  max-width:250px;
}
.hero-float b{color:var(--yellow);font-family:var(--font-num);font-variant-numeric:tabular-nums;}

/* ---------- 痛点疑问 ---------- */
.pain-section{background:var(--warm);}
.pain-grid{display:grid;gap:16px;grid-template-columns:1fr;}
@media screen and (min-width:768px){
  .pain-grid{grid-template-columns:repeat(2,1fr);gap:20px;}
}
.pain-card{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  padding:24px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.pain-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(255,90,31,.35);}
.pain-card .q{
  display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;border-radius:10px;
  background:var(--primary-soft);
  color:var(--primary);
  font-family:var(--font-num);
  font-weight:700;font-size:16px;
  margin-bottom:14px;
}
.pain-card h3{font-size:17px;font-weight:600;line-height:1.5;}
.pain-card p{margin-top:8px;font-size:14.5px;color:var(--muted);line-height:1.75;}
@media screen and (min-width:992px){
  .pain-grid{grid-template-columns:repeat(4,1fr);}
  .pain-card:nth-child(2){margin-top:26px;}
  .pain-card:nth-child(4){margin-top:26px;}
}

/* ---------- 方案 bento ---------- */
.bento{display:grid;gap:18px;grid-template-columns:1fr;}
@media screen and (min-width:768px){
  .bento{grid-template-columns:repeat(12,1fr);gap:22px;}
  .bento .b-large{grid-column:span 7;}
  .bento .b-small{grid-column:span 5;}
  .bento .b-half{grid-column:span 6;}
}
@media screen and (min-width:992px){
  .bento .b-large{grid-column:span 7;}
  .bento .b-small{grid-column:span 5;}
  .bento .b-half{grid-column:span 6;}
}
.bento-card{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  padding:26px;
  box-shadow:var(--shadow-card);
  display:flex;
  flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.bento-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(255,90,31,.35);}
.bento-card .icon{
  width:44px;height:44px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:var(--primary-soft);
  color:var(--primary);
  font-family:var(--font-num);
  font-weight:800;font-size:15px;
  margin-bottom:18px;
}
.bento-card h3{font-size:18px;font-weight:600;line-height:1.5;}
.bento-card p{margin-top:10px;font-size:15px;color:var(--text);line-height:1.8;}
.bento-card .text-link{margin-top:auto;padding-top:18px;}
.bento-card.alt{background:var(--panel);}
.bento-card.warm{background:var(--warm);border-color:rgba(255,90,31,.22);}
.bento-card.dark{background:var(--ink);border-color:transparent;color:#D9D5E4;}
.bento-card.dark h3{color:#fff;}
.bento-card.dark p{color:#B9B3C9;}
.bento-card.dark .icon{background:rgba(255,90,31,.18);color:var(--yellow);}
.bento-card.dark .text-link{color:var(--yellow);}

/* ---------- 数据区 ---------- */
.stats{background:var(--ink);color:#fff;position:relative;overflow:hidden;}
.stats::before{
  content:"";
  position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:22px 22px;
  opacity:.7;
}
.stats .grid-container{position:relative;z-index:2;}
.stats h2{color:#fff;}
.stats .section-sub{color:#B9B3C9;}
.stat-grid{display:grid;gap:26px;grid-template-columns:repeat(2,1fr);margin-top:8px;}
@media screen and (min-width:768px){.stat-grid{grid-template-columns:repeat(4,1fr);gap:20px;}}
.stat-item{border-top:2px solid rgba(255,255,255,.12);padding-top:20px;}
.stat-num{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:clamp(34px,5vw,54px);
  font-weight:800;
  line-height:1;
  color:var(--yellow);
  letter-spacing:-1px;
}
.stat-num small{font-size:16px;font-weight:600;margin-left:4px;color:var(--accent);}
.stat-item p{margin-top:12px;font-size:14px;color:#C9C4D6;line-height:1.7;}

/* ---------- 资讯列表 ---------- */
.news-grid{margin-top:0;}
.news-card{
  display:flex;
  flex-direction:column;
  height:100%;
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(255,90,31,.35);}
.news-cover{position:relative;aspect-ratio:16/9;background:var(--panel);overflow:hidden;}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.news-card:hover .news-cover img{transform:scale(1.04);}
.news-body{padding:20px;display:flex;flex-direction:column;flex:1;}
.tag{
  display:inline-block;
  align-self:flex-start;
  padding:4px 12px;
  border-radius:var(--radius-pill);
  background:var(--primary-soft);
  color:var(--primary-dark);
  font-size:12px;
  font-weight:600;
}
.news-body h3{
  margin-top:12px;
  font-size:17px;
  font-weight:600;
  line-height:1.55;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-card:hover h3{color:var(--primary);}
.news-ex{
  margin-top:10px;
  font-size:14px;
  color:var(--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:16px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:var(--muted);
  font-variant-numeric:tabular-nums;
}
.news-meta .arrow{color:var(--primary);font-weight:600;}
.news-empty{
  padding:56px 24px;
  text-align:center;
  border:1px dashed var(--border);
  border-radius:var(--radius-card);
  background:var(--panel);
}
.news-empty svg{width:44px;height:44px;stroke:var(--muted);fill:none;stroke-width:1.6;margin:0 auto 16px;}
.news-empty b{display:block;font-size:16px;color:var(--title);}
.news-empty span{display:block;margin-top:8px;font-size:14px;color:var(--muted);}

/* ---------- FAQ ---------- */
.faq-section{background:var(--panel);}
.accordion.faq-acc{border:0;background:transparent;margin:0;}
.accordion.faq-acc .accordion-item{border:0;border-bottom:1px solid var(--border);background:transparent;}
.accordion.faq-acc .accordion-item:first-child{border-top:1px solid var(--border);}
.accordion.faq-acc .accordion-title{
  position:relative;
  border:0;
  background:transparent;
  color:var(--title);
  font-size:16px;
  font-weight:600;
  line-height:1.6;
  padding:20px 52px 20px 16px;
  transition:color .18s ease,background-color .18s ease;
}
.accordion.faq-acc .accordion-title::before{
  content:"+";
  position:absolute;
  right:16px;top:50%;
  transform:translateY(-50%);
  font-family:var(--font-num);
  font-size:22px;
  font-weight:400;
  color:var(--primary);
  transition:transform .2s ease;
}
.accordion.faq-acc .accordion-item.is-active .accordion-title::before{content:"−";}
.accordion.faq-acc .accordion-title:hover{color:var(--primary);background:rgba(255,240,232,.5);}
.accordion.faq-acc .accordion-item.is-active .accordion-title{font-weight:700;}
.accordion.faq-acc .accordion-content{
  border:0;
  background:transparent;
  padding:0 52px 22px 19px;
  font-size:15px;
  color:var(--text);
  line-height:1.85;
}
.accordion.faq-acc .accordion-item.is-active{box-shadow:inset 3px 0 0 var(--primary);}

/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(120deg,#1F1834 0%,#332043 60%,#4A2340 100%);
  color:#fff;
  border-radius:18px;
  padding:38px 26px;
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-60px;bottom:-80px;
  width:260px;height:260px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(255,90,31,.35) 0%,rgba(255,90,31,0) 70%);
}
.cta-band h2{color:#fff;font-size:24px;line-height:1.35;position:relative;z-index:2;}
.cta-band p{margin-top:12px;color:#CFC9DE;font-size:15px;max-width:620px;position:relative;z-index:2;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:24px;position:relative;z-index:2;}
@media screen and (min-width:768px){
  .cta-band{padding:52px 48px;}
  .cta-band h2{font-size:30px;}
}

/* ---------- 表单弹层 ---------- */
.reveal{
  border:0;
  border-radius:16px;
  padding:0;
  max-width:560px;
  width:calc(100% - 32px);
  max-height:90vh;
  overflow:auto;
  box-shadow:0 30px 60px -24px rgba(23,19,38,.5);
}
.reveal-overlay{background:rgba(23,19,38,.5);}
.reveal .modal-head{
  padding:24px 26px 18px;
  border-bottom:1px solid var(--border);
  position:relative;
}
.reveal .modal-head h2{font-size:20px;}
.reveal .modal-head p{margin-top:8px;font-size:13.5px;color:var(--muted);}
.reveal .close-button{
  top:14px;right:14px;
  width:44px;height:44px;
  display:flex;align-items:center;justify-content:center;
  font-size:26px;line-height:1;
  color:var(--muted);
  border-radius:12px;
  transition:background-color .18s ease,color .18s ease;
}
.reveal .close-button:hover{background:var(--panel);color:var(--primary);}
.reveal .modal-body{padding:22px 26px 26px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:14px;font-weight:600;color:var(--title);margin-bottom:8px;}
.field input,.field select,.field textarea{
  width:100%;
  border:1px solid var(--border);
  border-radius:var(--radius-btn);
  background:#fff;
  padding:0 14px;
  height:46px;
  outline:none;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field textarea{height:auto;padding:12px 14px;min-height:96px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--primary);
  box-shadow:0 0 0 4px rgba(255,90,31,.1);
}
.form-note{margin-top:14px;font-size:12.5px;color:var(--muted);line-height:1.7;}
.form-note a{color:var(--primary);text-decoration:underline;}
@media screen and (max-width:767px){
  .reveal{
    position:fixed;
    left:0;right:0;bottom:0;top:auto;
    width:100%;
    max-width:100%;
    margin:0;
    border-radius:16px 16px 0 0;
    transform:none;
    max-height:88vh;
  }
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#B9B3C9;padding:52px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px;}
@media screen and (min-width:768px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:28px;}}
.footer-brand .logo-text b{color:#fff;}
.footer-brand .logo-text span{color:#8E88A0;}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;max-width:300px;}
.footer-brand .contact{margin-top:16px;font-size:14px;}
.footer-brand .contact b{color:var(--yellow);font-family:var(--font-num);}
.site-footer h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;}
.site-footer li{margin-bottom:10px;font-size:14px;}
.site-footer a:hover{color:var(--primary);}
.footer-bottom{
  margin-top:44px;
  border-top:1px solid rgba(255,255,255,.09);
  padding:20px 0 26px;
  font-size:12px;
  color:#8E88A0;
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  justify-content:space-between;
}
.footer-bottom a{color:#8E88A0;}
.footer-bottom a:hover{color:var(--primary);}

/* roulang page: article */
:root{
  --brand:#FF5A1F;
  --brand-dark:#D93F06;
  --brand-light:#FFF0E8;
  --accent:#0FB5A6;
  --vital:#FFC845;
  --ink:#171326;
  --title:#1C1728;
  --text:#3B3548;
  --muted:#7E7889;
  --line:#EDE9F2;
  --bg:#FFFFFF;
  --warm:#FFF8F4;
  --panel:#F5F6FA;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-card:0 1px 2px rgba(23,19,38,.06), 0 10px 28px -14px rgba(28,23,40,.16);
  --sh-hover:0 2px 4px rgba(23,19,38,.08), 0 18px 40px -18px rgba(28,23,40,.28);
  --font-cn:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;
  --font-num:'Inter','Roboto',Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.1px;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-dark)}
button,input,select,textarea{font-family:inherit;font-size:15px}
h1,h2,h3,h4{color:var(--title);margin:0;font-weight:700;letter-spacing:-.2px}
p{margin:0 0 18px}
ul,ol{margin:0 0 18px;padding-left:22px}
li{margin-bottom:8px}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:992px){.container{padding:0 24px}}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(180%) blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,padding .25s ease;
}
.site-header.is-stuck{box-shadow:0 6px 24px -14px rgba(28,23,40,.35)}
.nav-wrap{padding:14px 0 10px}
.site-header.is-stuck .nav-wrap{padding:8px 0 6px}
.nav-top{display:flex;align-items:center;gap:24px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:40px;height:40px;border-radius:12px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--brand),#FF8A4C);
  color:#fff;font-weight:800;font-size:20px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 18px -10px rgba(255,90,31,.9);
}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text b{font-size:16px;color:var(--title);letter-spacing:-.3px}
.logo-text span{font-size:12px;color:var(--muted);letter-spacing:2px}
.search-form{
  flex:1 1 auto;max-width:560px;margin:0 auto;
  display:flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--line);
  border-radius:var(--r-pill);padding:4px 4px 4px 16px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-form svg{width:18px;height:18px;flex:0 0 auto;fill:none;stroke:var(--muted);stroke-width:2;stroke-linecap:round}
.search-form input{
  flex:1 1 auto;border:0;outline:0;background:transparent;
  height:38px;color:var(--text);min-width:0;
}
.search-form input::placeholder{color:#A9A4B4}
.search-form:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(255,90,31,.12)}
.search-form button{
  flex:0 0 auto;border:0;cursor:pointer;
  background:var(--brand);color:#fff;font-weight:600;
  height:38px;padding:0 20px;border-radius:var(--r-pill);
  transition:background .2s ease,transform .15s ease;
}
.search-form button:hover{background:var(--brand-dark);transform:translateY(-1px)}
.search-form button:active{transform:none}
.nav-cats{
  display:flex;gap:10px;margin-top:12px;overflow-x:auto;
  padding-bottom:2px;scrollbar-width:none;
}
.nav-cats::-webkit-scrollbar{display:none}
.nav-cats a{
  flex:0 0 auto;white-space:nowrap;
  font-size:14px;color:var(--text);
  padding:7px 16px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:#fff;
  transition:all .2s ease;
}
.nav-cats a:hover{border-color:rgba(255,90,31,.35);color:var(--brand);background:var(--brand-light)}
.nav-cats a.active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600}
@media (max-width:767px){
  .nav-top{flex-wrap:wrap;gap:12px}
  .logo{order:1}
  .search-form{order:3;flex:1 0 100%;max-width:none;margin:0}
  .logo-mark{width:36px;height:36px;font-size:18px}
}

/* ===== 面包屑 ===== */
.crumb-bar{background:var(--warm);border-bottom:1px solid var(--line)}
.crumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);padding:14px 0;
}
.crumb a{color:var(--brand);font-weight:500}
.crumb a:hover{color:var(--brand-dark);text-decoration:underline}
.crumb .sep{color:#C9C3D4}
.crumb .cur{color:var(--title);max-width:70%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ===== 文章头部 ===== */
.article-head{padding:44px 0 28px;border-bottom:1px solid var(--line)}
.head-inner{max-width:860px}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:600;color:var(--brand);
  background:var(--brand-light);border-radius:var(--r-pill);
  padding:6px 14px;
}
.article-head h1{
  font-size:clamp(26px,3.6vw,40px);
  font-weight:800;line-height:1.28;letter-spacing:-.5px;
  margin:16px 0 18px;
}
.meta-row{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:13px;color:var(--muted)}
.meta-row span{display:inline-flex;align-items:center;gap:6px}
.meta-row b{color:var(--title);font-weight:600}
.meta-dot{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block}

/* ===== 主体布局 ===== */
.shell{
  display:grid;grid-template-columns:minmax(0,1fr) 312px;
  gap:48px;padding:44px 0 72px;align-items:start;
}
@media (max-width:991px){
  .shell{grid-template-columns:1fr;gap:36px;padding:32px 0 56px}
}
.reader{max-width:820px}
.cover{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  border-radius:var(--r-card);border:1px solid rgba(255,90,31,.18);
  margin-bottom:30px;background:var(--panel);
}
.rich-content{font-size:16.5px;line-height:1.95;color:var(--text)}
.rich-content h2{
  font-size:24px;font-weight:700;margin:38px 0 16px;padding-left:14px;position:relative;
}
.rich-content h2::before{
  content:"";position:absolute;left:0;top:6px;width:4px;height:22px;
  border-radius:3px;background:var(--brand);
}
.rich-content h3{font-size:19px;font-weight:600;margin:28px 0 12px}
.rich-content p{margin:0 0 18px}
.rich-content ul,.rich-content ol{padding-left:24px;margin:0 0 20px}
.rich-content li{margin-bottom:10px}
.rich-content blockquote{
  margin:24px 0;padding:16px 20px;background:var(--warm);
  border-left:3px solid var(--brand);border-radius:0 var(--r-card) var(--r-card) 0;
  color:var(--title);
}
.rich-content img{margin:22px auto;border-radius:var(--r-img)}
.rich-content table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px}
.rich-content th,.rich-content td{border:1px solid var(--line);padding:10px 14px;text-align:left}
.rich-content th{background:var(--panel);color:var(--title)}
.rich-content a{text-decoration:underline}
.empty-state{
  background:var(--warm);border:1px dashed rgba(255,90,31,.4);
  border-radius:var(--r-card);padding:40px 28px;text-align:center;
}
.empty-state h2{font-size:20px;margin-bottom:10px}
.empty-state p{color:var(--muted);margin-bottom:20px}

/* ===== 标签 ===== */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin:36px 0 0;padding-top:26px;border-top:1px solid var(--line)}
.tag-row .tag{
  font-size:13px;color:var(--text);background:var(--panel);
  border:1px solid var(--line);border-radius:var(--r-pill);padding:6px 14px;
  transition:all .2s ease;
}
.tag-row .tag:hover{background:var(--brand-light);border-color:rgba(255,90,31,.35);color:var(--brand)}

/* ===== 上下篇 ===== */
.pager{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:26px}
@media (max-width:575px){.pager{grid-template-columns:1fr}}
.pager a{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:16px 20px;transition:all .2s ease;
}
.pager a:hover{border-color:rgba(255,90,31,.35);transform:translateY(-3px);box-shadow:var(--sh-card)}
.pager small{display:block;font-size:12px;color:var(--muted);margin-bottom:6px}
.pager b{font-size:15px;color:var(--title);font-weight:600}

/* ===== 侧栏 ===== */
.side{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
@media (max-width:991px){.side{position:static;order:2}}
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-card);
}
.side-card h3{
  font-size:16px;font-weight:700;margin-bottom:14px;padding-left:12px;position:relative;
}
.side-card h3::before{
  content:"";position:absolute;left:0;top:5px;width:4px;height:16px;border-radius:3px;background:var(--brand);
}
.toc{list-style:none;padding:0;margin:0}
.toc li{margin:0;border-bottom:1px dashed var(--line)}
.toc li:last-child{border-bottom:0}
.toc a{display:block;padding:9px 0;font-size:14px;color:var(--text)}
.toc a:hover{color:var(--brand);padding-left:4px;transition:padding .2s ease}
.hotlist{list-style:none;padding:0;margin:0}
.hotlist li{display:flex;gap:10px;align-items:flex-start;margin-bottom:14px;font-size:14px;line-height:1.6}
.hotlist li:last-child{margin-bottom:0}
.hotlist .num{
  flex:0 0 auto;width:22px;height:22px;border-radius:7px;background:var(--brand-light);
  color:var(--brand);font-family:var(--font-num);font-size:12px;font-weight:700;
  display:flex;align-items:center;justify-content:center;margin-top:2px;
}
.hotlist a{color:var(--text)}
.hotlist a:hover{color:var(--brand)}
.cta-card{background:var(--ink);border:0;color:#EDEAF5}
.cta-card h3{color:#fff}
.cta-card h3::before{background:var(--accent)}
.cta-card p{font-size:14px;color:#B9B3C9;margin-bottom:18px;line-height:1.8}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:0;cursor:pointer;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;padding:12px 24px;
  transition:background .2s ease,transform .15s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 12px 24px -14px rgba(255,90,31,.9)}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:none}
.btn-ghost{background:#fff;color:var(--title);border:1px solid var(--line)}
.btn-ghost:hover{border-color:rgba(255,90,31,.45);color:var(--brand);transform:translateY(-1px)}
.btn-block{width:100%}

/* ===== 相关推荐 ===== */
.related{padding:64px 0;background:var(--warm);border-top:1px solid var(--line)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px}
.sec-head h2{font-size:26px;font-weight:700;padding-left:14px;position:relative}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:6px;width:4px;height:22px;border-radius:3px;background:var(--brand);
}
.sec-head p{margin:6px 0 0;color:var(--muted);font-size:14px}
.sec-head .more{font-size:14px;font-weight:600;white-space:nowrap}
.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
@media (max-width:991px){.cards{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:575px){.cards{grid-template-columns:1fr}}
.card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-card);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:rgba(255,90,31,.35)}
.card .thumb{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;background:var(--panel)}
.card .body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1 1 auto}
.card .chip{
  align-self:flex-start;font-size:12px;font-weight:600;color:var(--accent);
  background:rgba(15,181,166,.1);border-radius:var(--r-pill);padding:4px 12px;margin-bottom:12px;
}
.card h3{font-size:17px;font-weight:600;line-height:1.5;margin-bottom:10px}
.card p{font-size:14px;color:var(--muted);margin:0 0 16px;flex:1 1 auto}
.card .go{font-size:13px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px}
.card:hover .go{gap:10px;transition:gap .2s ease}

/* ===== 返回栏目标题 ===== */
.back-band{padding:0 0 72px}
.back-band .inner{
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);padding:24px 28px;
}
.back-band h2{font-size:18px;font-weight:700}
.back-band p{margin:6px 0 0;font-size:14px;color:var(--muted)}

/* ===== 页脚 ===== */
.site-footer{background:var(--ink);color:#B9B3C9;padding:64px 0 0;margin-top:0}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;
  padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.08);
}
@media (max-width:991px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:575px){.footer-grid{grid-template-columns:1fr;gap:28px}}
.footer-brand p{font-size:14px;line-height:1.85;margin:16px 0 12px}
.footer-brand .contact{font-size:13px;color:#8E88A0}
.footer-brand .contact b{color:var(--vital);font-family:var(--font-num)}
.site-footer .logo-text b{color:#fff}
.site-footer .logo-text span{color:#8E88A0}
.site-footer h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin-bottom:10px}
.site-footer a{color:#B9B3C9;font-size:14px}
.site-footer a:hover{color:var(--brand)}
.footer-bottom{
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  padding:20px 0;font-size:12px;color:#8E88A0;
}

/* roulang page: category1 */
:root{
  --primary:#FF5A1F;
  --primary-dark:#D93F06;
  --primary-soft:#FFF0E8;
  --accent:#0FB5A6;
  --accent-soft:#E6F7F5;
  --yellow:#FFC845;
  --dark:#171326;
  --heading:#1C1728;
  --body:#3B3548;
  --muted:#7E7889;
  --line:#EDE9F2;
  --page:#FFFFFF;
  --warm:#FFF8F4;
  --panel:#F5F6FA;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-card:0 1px 2px rgba(23,19,38,.06), 0 10px 28px -14px rgba(28,23,40,.16);
  --shadow-hover:0 2px 4px rgba(23,19,38,.08), 0 18px 38px -16px rgba(28,23,40,.24);
  --font-cn:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;
  --font-num:'Inter','Roboto',Arial,sans-serif;
  --section-pad:88px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--body);
  background:var(--page);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-img);}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:2px;
}
h1,h2,h3,h4{margin:0;color:var(--heading);font-weight:700;line-height:1.3;}
p{margin:0 0 16px;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;border:none;background:none;}
.grid-container{max-width:1200px;padding-left:20px;padding-right:20px;margin:0 auto;}
.grid-container-full{max-width:100%;}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
  backdrop-filter:saturate(160%) blur(8px);
  transition:box-shadow .25s ease,padding .25s ease;
}
.site-header.is-stuck{box-shadow:0 6px 22px -14px rgba(28,23,40,.35);}
.nav-wrap{padding:14px 0 10px;}
.site-header.is-stuck .nav-wrap{padding:8px 0 6px;}
.nav-top{display:flex;align-items:center;gap:28px;}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:40px;height:40px;border-radius:12px;flex-shrink:0;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--primary),#FF8A4C);
  color:#fff;font-weight:800;font-size:19px;
  box-shadow:0 8px 18px -10px rgba(255,90,31,.85);
}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-text b{font-size:17px;font-weight:800;color:var(--heading);letter-spacing:-.2px;}
.logo-text span{font-size:12px;color:var(--muted);letter-spacing:.5px;}
.search-form{
  flex:1;max-width:560px;position:relative;display:flex;align-items:center;
  height:48px;border:1px solid var(--line);border-radius:var(--radius-pill);
  background:var(--panel);padding:0 4px 0 16px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.site-header.is-stuck .search-form{height:42px;}
.search-form:focus-within{
  border-color:var(--primary);background:#fff;
  box-shadow:0 0 0 4px rgba(255,90,31,.12);
}
.search-form svg{
  width:19px;height:19px;flex-shrink:0;fill:none;
  stroke:var(--muted);stroke-width:2;stroke-linecap:round;
}
.search-form input{
  flex:1;border:none;background:transparent;height:100%;
  font-size:14.5px;color:var(--heading);padding:0 12px;font-family:inherit;
}
.search-form input::placeholder{color:var(--muted);}
.search-form input:focus{outline:none;}
.search-form button{
  height:38px;padding:0 22px;border-radius:var(--radius-pill);
  background:var(--primary);color:#fff;font-size:14px;font-weight:600;
  transition:background .2s ease,transform .2s ease;
}
.site-header.is-stuck .search-form button{height:34px;}
.search-form button:hover{background:var(--primary-dark);transform:translateY(-1px);}
.search-form button:active{transform:none;}
.nav-cats{
  display:flex;align-items:center;gap:8px;margin-top:12px;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;padding-bottom:2px;
}
.nav-cats::-webkit-scrollbar{display:none;}
.nav-cats a{
  flex:0 0 auto;font-size:14px;color:var(--body);
  padding:7px 16px;border-radius:var(--radius-pill);
  border:1px solid transparent;white-space:nowrap;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.nav-cats a:hover{background:var(--primary-soft);color:var(--primary-dark);}
.nav-cats a.active{
  background:var(--primary);color:#fff;font-weight:600;
  box-shadow:0 8px 18px -12px rgba(255,90,31,.9);
}

/* ---------- breadcrumb ---------- */
.crumb-bar{border-bottom:1px solid var(--line);background:#fff;}
.crumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:var(--muted);padding:14px 0;
}
.crumb a{color:var(--primary);}
.crumb a:hover{color:var(--primary-dark);text-decoration:underline;text-underline-offset:3px;}
.crumb span.sep{color:#C9C3D4;}
.crumb strong{color:var(--heading);font-weight:600;}

/* ---------- page banner ---------- */
.page-banner{
  background:
    radial-gradient(circle at 88% 12%, rgba(255,90,31,.10), transparent 46%),
    radial-gradient(circle at 6% 90%, rgba(15,181,166,.10), transparent 42%),
    var(--warm);
  padding:52px 0 56px;
  border-bottom:1px solid var(--line);
}
.banner-inner{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center;}
.banner-tag{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;border:1px solid #FFD9C6;color:var(--primary-dark);
  font-size:13px;font-weight:600;padding:6px 15px;border-radius:var(--radius-pill);
  margin-bottom:16px;
}
.banner-tag i{width:7px;height:7px;border-radius:50%;background:var(--primary);display:block;}
.page-banner h1{
  font-size:clamp(30px,4.2vw,46px);font-weight:800;line-height:1.2;
  letter-spacing:-.5px;margin-bottom:16px;
}
.page-banner h1 em{font-style:normal;color:var(--primary);}
.banner-lead{font-size:16.5px;color:var(--body);max-width:560px;margin-bottom:20px;}
.banner-meta{display:flex;flex-wrap:wrap;gap:10px;}
.meta-pill{
  display:inline-flex;align-items:center;gap:7px;background:#fff;
  border:1px solid var(--line);border-radius:var(--radius-pill);
  font-size:13px;color:var(--body);padding:6px 14px;
}
.meta-pill b{color:var(--heading);font-weight:600;}
.banner-media{position:relative;}
.banner-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:16px;border:1px solid rgba(255,90,31,.20);
  box-shadow:var(--shadow-card);
}
.banner-media::after{
  content:"";position:absolute;right:-14px;bottom:-14px;width:110px;height:110px;
  border-radius:22px;background:
    repeating-linear-gradient(45deg,rgba(255,90,31,.16) 0 2px,transparent 2px 9px);
  z-index:-1;
}

/* ---------- common section ---------- */
.section{padding:var(--section-pad) 0;}
.section-warm{background:var(--warm);}
.section-panel{background:var(--panel);}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head h2{
  font-size:clamp(24px,2.6vw,32px);font-weight:700;letter-spacing:-.3px;
  display:flex;align-items:center;gap:12px;margin-bottom:14px;
}
.section-head h2::before{
  content:"";width:4px;height:24px;border-radius:3px;background:var(--primary);flex-shrink:0;
}
.section-head p{color:var(--muted);font-size:15.5px;margin:0;}

/* ---------- intro two column ---------- */
.intro-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.intro-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:16px;
  border:1px solid var(--line);box-shadow:var(--shadow-card);
}
.intro-copy h2{font-size:clamp(23px,2.4vw,30px);margin-bottom:16px;letter-spacing:-.3px;}
.intro-copy p{font-size:15.5px;}
.intro-points{display:grid;gap:12px;margin-top:22px;}
.intro-points li{
  display:flex;gap:12px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:14px 18px;box-shadow:var(--shadow-card);
  transition:border-color .2s ease,transform .2s ease;
}
.intro-points li:hover{border-color:rgba(255,90,31,.35);transform:translateY(-3px);}
.intro-points .dot{
  width:26px;height:26px;border-radius:9px;flex-shrink:0;margin-top:3px;
  display:grid;place-items:center;background:var(--accent-soft);
  color:var(--accent);font-weight:700;font-size:13px;font-family:var(--font-num);
}
.intro-points b{display:block;color:var(--heading);font-size:15.5px;font-weight:600;}
.intro-points span{font-size:14px;color:var(--muted);}

/* ---------- numbered list ---------- */
.checklist{border-top:1px solid var(--line);}
.checklist-item{
  display:grid;grid-template-columns:88px 1fr auto;gap:24px;align-items:center;
  padding:28px 8px;border-bottom:1px solid var(--line);
  transition:background .25s ease,padding .25s ease;
}
.checklist-item:hover{background:#fff;padding-left:18px;padding-right:18px;}
.checklist-num{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:40px;font-weight:800;line-height:1;color:#F3D9CC;
  transition:color .25s ease;
}
.checklist-item:hover .checklist-num{color:var(--primary);}
.checklist-body h3{font-size:18.5px;font-weight:600;margin-bottom:8px;}
.checklist-body p{margin:0;color:var(--muted);font-size:14.8px;line-height:1.8;}
.checklist-arrow{
  width:40px;height:40px;border-radius:50%;flex-shrink:0;
  display:grid;place-items:center;border:1px solid var(--line);
  color:var(--primary);font-size:16px;background:#fff;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.checklist-item:hover .checklist-arrow{
  background:var(--primary);color:#fff;border-color:var(--primary);
}

/* ---------- faq ---------- */
.faq-wrap{max-width:880px;margin:0 auto;}
.accordion{border:none;background:transparent;}
.accordion .accordion-item{border:none;border-bottom:1px solid var(--line);background:transparent;}
.accordion .accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 14px 20px 18px;font-size:16.5px;font-weight:600;color:var(--heading);
  background:transparent;border:none;position:relative;
  transition:color .2s ease,padding .2s ease;
}
.accordion .accordion-title::before{display:none;}
.accordion .accordion-title::after{
  content:"+";font-size:22px;font-weight:400;color:var(--primary);
  line-height:1;flex-shrink:0;transition:transform .25s ease;
}
.accordion .accordion-item.is-active .accordion-title::after{content:"−";transform:rotate(180deg);}
.accordion .accordion-item.is-active .accordion-title{padding-left:24px;color:var(--primary-dark);}
.accordion .accordion-item.is-active .accordion-title:before{
  content:"";display:block;position:absolute;left:0;top:22px;bottom:22px;
  width:3px;border-radius:2px;background:var(--primary);
}
.accordion .accordion-title:hover{color:var(--primary-dark);}
.accordion .accordion-content{
  padding:0 18px 22px 24px;background:transparent;border:none;
  color:var(--body);font-size:15px;line-height:1.85;
}
.accordion .accordion-content p:last-child{margin-bottom:0;}

/* ---------- cta ---------- */
.cta-band{
  background:
    radial-gradient(circle at 82% 18%, rgba(255,90,31,.20), transparent 48%),
    radial-gradient(circle at 12% 86%, rgba(15,181,166,.18), transparent 46%),
    var(--dark);
  color:#fff;border-radius:20px;
  padding:52px 48px;display:grid;grid-template-columns:1.25fr .75fr;
  gap:36px;align-items:center;
}
.cta-band h2{color:#fff;font-size:clamp(23px,2.5vw,30px);margin-bottom:14px;letter-spacing:-.3px;}
.cta-band p{color:rgba(255,255,255,.76);font-size:15.5px;margin-bottom:0;max-width:520px;}
.cta-actions{display:flex;flex-direction:column;gap:12px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 28px;border-radius:var(--radius-btn);
  font-size:15.5px;font-weight:600;white-space:nowrap;
  transition:background .2s ease,color .2s ease,transform .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);color:#fff;}
.btn-primary:active{transform:none;}
.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.45);}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff;transform:translateY(-1px);}
.btn-outline{background:#fff;color:var(--primary-dark);border:1px solid #FFC9B2;}
.btn-outline:hover{background:var(--primary-soft);transform:translateY(-1px);}
.cta-note{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px;}
.cta-note span{
  font-size:13px;color:rgba(255,255,255,.7);
  border:1px solid rgba(255,255,255,.18);border-radius:var(--radius-pill);
  padding:5px 13px;
}

/* ---------- reveal / form ---------- */
.reveal-overlay{background:rgba(23,19,38,.5);}
.reveal{
  border:none;border-radius:16px;padding:0;max-width:560px;
  box-shadow:0 30px 70px -30px rgba(23,19,38,.6);overflow:hidden;
}
.reveal .close-button{
  top:14px;right:14px;width:44px;height:44px;border-radius:50%;
  display:grid;place-items:center;color:var(--muted);font-size:24px;
  background:rgba(245,246,250,.9);transition:background .2s ease,color .2s ease;
}
.reveal .close-button:hover{background:var(--primary-soft);color:var(--primary-dark);}
.modal-head{padding:28px 30px 18px;border-bottom:1px solid var(--line);}
.modal-head h3{font-size:21px;margin-bottom:8px;}
.modal-head p{margin:0;font-size:14px;color:var(--muted);}
.modal-body{padding:24px 30px 30px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--heading);margin-bottom:7px;}
.field input,.field select,.field textarea{
  width:100%;height:46px;border:1px solid var(--line);border-radius:var(--radius-btn);
  background:#fff;padding:0 14px;font-size:14.5px;color:var(--heading);
  font-family:inherit;transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:auto;min-height:96px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(255,90,31,.12);
}
.field input::placeholder,.field textarea::placeholder{color:#A9A3B5;}
.chip-row{display:flex;flex-wrap:wrap;gap:8px;}
.chip-row label{
  margin:0;font-weight:500;font-size:13.5px;color:var(--body);
  border:1px solid var(--line);border-radius:var(--radius-pill);
  padding:7px 16px;cursor:pointer;background:#fff;
  transition:border-color .2s ease,background .2s ease,color .2s ease;
}
.chip-row input{position:absolute;opacity:0;width:0;height:0;}
.chip-row input:checked + label{
  background:var(--primary-soft);border-color:var(--primary);color:var(--primary-dark);font-weight:600;
}
.field .btn{width:100%;}
.privacy{font-size:12.5px;color:var(--muted);margin:14px 0 0;text-align:center;}
.privacy a{color:var(--primary);text-decoration:underline;text-underline-offset:3px;}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px;}
.site-footer .logo-text b{color:#fff;}
.site-footer .logo-text span{color:rgba(255,255,255,.55);}
.footer-brand p{font-size:14px;line-height:1.85;margin:16px 0 0;max-width:340px;}
.footer-brand .contact{font-size:13.5px;color:rgba(255,255,255,.6);}
.footer-brand .contact b{color:var(--accent);font-weight:600;font-family:var(--font-num);}
.site-footer h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;}
.site-footer ul li{margin-bottom:10px;}
.site-footer ul a{font-size:14px;color:rgba(255,255,255,.72);position:relative;}
.site-footer ul a::after{
  content:"";position:absolute;left:0;bottom:-2px;width:0;height:1px;background:var(--primary);
  transition:width .25s ease;
}
.site-footer ul a:hover{color:var(--primary);}
.site-footer ul a:hover::after{width:100%;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  padding:18px 0 24px;font-size:12px;color:rgba(255,255,255,.45);
}

/* ---------- responsive ---------- */
@media screen and (max-width:1199px){
  :root{--section-pad:80px;}
}
@media screen and (max-width:991px){
  :root{--section-pad:64px;}
  .nav-top{flex-wrap:wrap;gap:14px;}
  .search-form{max-width:100%;order:3;flex:1 0 100%;}
  .banner-inner{grid-template-columns:1fr;gap:32px;}
  .intro-grid{grid-template-columns:1fr;gap:32px;}
  .cta-band{grid-template-columns:1fr;padding:40px 30px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media screen and (max-width:767px){
  body{font-size:15px;}
  :root{--section-pad:52px;}
  .nav-wrap{padding:12px 0 8px;}
  .nav-cats{margin-top:10px;}
  .page-banner{padding:36px 0 40px;}
  .banner-lead{font-size:15.5px;}
  .checklist-item{grid-template-columns:54px 1fr;gap:16px;padding:22px 4px;}
  .checklist-num{font-size:28px;}
  .checklist-arrow{display:none;}
  .checklist-body h3{font-size:17px;}
  .accordion .accordion-title{font-size:15.5px;padding:18px 10px 18px 14px;}
  .accordion .accordion-item.is-active .accordion-title{padding-left:20px;}
  .accordion .accordion-content{padding:0 14px 20px 20px;font-size:14.5px;}
  .cta-band{padding:34px 22px;border-radius:16px;}
  .cta-actions{flex-direction:column;}
  .btn{width:100%;}
  .modal-head,.modal-body{padding-left:20px;padding-right:20px;}
  .reveal{border-radius:16px 16px 0 0;bottom:0;top:auto;position:fixed;max-height:90vh;overflow-y:auto;width:100%;max-width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:6px;}
}
@media screen and (max-width:520px){
  .logo-text b{font-size:15.5px;}
  .search-form{height:44px;padding-left:12px;}
  .search-form button{padding:0 16px;font-size:13.5px;}
  .search-form input{font-size:13.5px;}
  .page-banner h1{font-size:27px;}
}

/* roulang page: category3 */
:root{
  --brand:#FF5A1F;
  --brand-dark:#D93F06;
  --brand-soft:#FFF0E8;
  --accent:#0FB5A6;
  --accent-soft:#E4F7F5;
  --yellow:#FFC845;
  --ink:#1C1728;
  --dark:#171326;
  --text:#3B3548;
  --muted:#7E7889;
  --line:#EDE9F2;
  --page:#FFFFFF;
  --warm:#FFF8F4;
  --panel:#F5F6FA;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --shadow:0 1px 2px rgba(23,19,38,.06),0 10px 28px -14px rgba(28,23,40,.16);
  --shadow-hover:0 2px 4px rgba(23,19,38,.08),0 18px 36px -16px rgba(28,23,40,.24);
  --font-cn:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei',system-ui,sans-serif;
  --font-num:'Inter','Roboto',Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--page);
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--ink);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand)}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.grid-container{max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
.grid-container.full{max-width:100%;padding:0}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,padding .25s ease;
}
.site-header.is-stuck{box-shadow:0 6px 20px -14px rgba(28,23,40,.35)}
.nav-wrap{padding:14px 0 0}
.nav-top{display:flex;align-items:center;gap:24px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:42px;height:42px;border-radius:12px;
  background:linear-gradient(135deg,var(--brand),var(--brand-dark));
  color:#fff;font-weight:800;font-size:20px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 18px -10px rgba(255,90,31,.85);
}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text b{font-size:17px;font-weight:800;color:var(--ink);letter-spacing:-.2px}
.logo-text span{font-size:12px;color:var(--muted);letter-spacing:2px}
.search-form{
  flex:1 1 auto;max-width:560px;margin:0 auto;
  display:flex;align-items:center;gap:6px;
  background:#fff;border:1px solid var(--line);
  border-radius:var(--r-pill);
  padding:5px 5px 5px 16px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-form:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(255,90,31,.12)}
.search-form svg{width:19px;height:19px;flex:0 0 auto;stroke:var(--muted);stroke-width:2;fill:none;stroke-linecap:round}
.search-form input{
  flex:1 1 auto;min-width:0;border:0;background:transparent;
  height:38px;color:var(--ink);outline:none;
}
.search-form input::placeholder{color:var(--muted)}
.search-form button{
  flex:0 0 auto;border:0;background:var(--brand);color:#fff;
  height:38px;padding:0 22px;border-radius:var(--r-pill);
  font-weight:600;letter-spacing:.5px;
  transition:background .2s ease,transform .15s ease;
}
.search-form button:hover{background:var(--brand-dark);transform:translateY(-1px)}
.search-form button:active{transform:none}
.nav-cats{
  display:flex;gap:10px;padding:12px 0 12px;
  overflow-x:auto;scrollbar-width:none;
}
.nav-cats::-webkit-scrollbar{display:none}
.nav-cats a{
  flex:0 0 auto;font-size:14px;font-weight:600;color:var(--text);
  padding:7px 16px;border-radius:var(--r-pill);
  background:var(--panel);
  border:1px solid transparent;
  white-space:nowrap;
  transition:all .2s ease;
}
.nav-cats a:hover{background:var(--brand-soft);color:var(--brand)}
.nav-cats a.active{background:var(--brand);color:#fff;box-shadow:0 8px 16px -10px rgba(255,90,31,.9)}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section.warm{background:var(--warm)}
.section.panel{background:var(--panel)}
.section-head{max-width:760px;margin-bottom:44px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:1px;color:var(--brand);
  background:var(--brand-soft);border-radius:var(--r-pill);padding:5px 14px;margin-bottom:14px;
}
h2.title{
  font-size:clamp(23px,2.6vw,33px);font-weight:700;color:var(--ink);
  line-height:1.3;letter-spacing:-.3px;display:flex;align-items:flex-start;gap:12px;
}
h2.title::before{
  content:"";flex:0 0 auto;width:4px;height:22px;margin-top:8px;border-radius:3px;background:var(--brand);
}
.section-head p{margin-top:14px;color:var(--muted);font-size:15.5px}
h3.card-title{font-size:18px;font-weight:600;color:var(--ink);line-height:1.5}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);
  font-weight:600;letter-spacing:.4px;border:1px solid transparent;
  transition:all .2s ease;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 22px -14px rgba(255,90,31,.95)}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:none}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}
.btn-ghost:active{transform:none}
.badge{
  display:inline-flex;align-items:center;gap:7px;
  font-size:13px;color:var(--text);background:#fff;
  border:1px solid var(--line);border-radius:var(--r-pill);padding:6px 14px;
}
.badge i{width:7px;height:7px;border-radius:50%;background:var(--accent);display:inline-block}

/* ---------- 页头横幅 ---------- */
.page-hero{
  background:linear-gradient(180deg,var(--warm),#fff);
  border-bottom:1px solid var(--line);
  padding:44px 0 64px;
  position:relative;
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;inset:auto 0 0 0;height:120px;
  background-image:radial-gradient(rgba(255,90,31,.16) 1px,transparent 1px);
  background-size:18px 18px;opacity:.6;pointer-events:none;
}
.breadcrumb{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--muted);margin-bottom:22px;position:relative;z-index:1}
.breadcrumb a{color:var(--brand);font-weight:600}
.breadcrumb span.sep{color:var(--line)}
.breadcrumb span.now{color:var(--ink);font-weight:600}
.page-hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;position:relative;z-index:1}
.page-hero h1{
  font-size:clamp(27px,3.6vw,44px);font-weight:800;color:var(--ink);
  line-height:1.24;letter-spacing:-.5px;
}
.page-hero h1 em{font-style:normal;color:var(--brand)}
.lead{margin-top:18px;font-size:16.5px;color:var(--text);max-width:620px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-figure{
  border-radius:16px;overflow:hidden;border:1px solid rgba(255,90,31,.2);
  box-shadow:0 20px 40px -26px rgba(28,23,40,.55);
  aspect-ratio:16/11;background:var(--brand-soft);
}
.hero-figure img{width:100%;height:100%;object-fit:cover}

/* ---------- 双栏对照 ---------- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.compare-col{
  border-radius:var(--r-card);padding:30px 28px;border:1px solid var(--line);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.compare-col:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(255,90,31,.35)}
.compare-col.cool{background:var(--panel)}
.compare-col.soft-warm{background:var(--brand-soft);border-color:rgba(255,90,31,.24)}
.compare-col h3{font-size:20px;font-weight:700;color:var(--ink);display:flex;align-items:center;gap:10px}
.compare-col h3 .dot{width:10px;height:10px;border-radius:50%;background:var(--accent);display:inline-block}
.compare-col.soft-warm h3 .dot{background:var(--brand)}
.compare-col .col-note{font-size:14px;color:var(--muted);margin-top:8px}
.compare-list{margin-top:22px;display:flex;flex-direction:column;gap:14px}
.compare-list li{
  display:flex;gap:12px;font-size:15px;color:var(--text);line-height:1.75;
  padding-bottom:14px;border-bottom:1px dashed var(--line);
}
.compare-list li:last-child{border-bottom:0;padding-bottom:0}
.compare-list li b{flex:0 0 auto;color:var(--brand);font-weight:800;font-family:var(--font-num);font-size:14px;padding-top:3px}

/* ---------- 横向卡带 ---------- */
.band-wrap{position:relative}
.band{
  display:flex;gap:20px;overflow-x:auto;padding:6px 4px 22px;
  scroll-snap-type:x mandatory;scrollbar-width:none;
}
.band::-webkit-scrollbar{display:none}
.band-card{
  flex:0 0 300px;scroll-snap-align:start;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px 22px;box-shadow:var(--shadow);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.band-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(255,90,31,.35)}
.band-card .idx{
  font-family:var(--font-num);font-size:13px;font-weight:800;letter-spacing:1px;color:var(--brand);
}
.band-card h3{margin-top:12px;font-size:17.5px;font-weight:600;color:var(--ink)}
.band-card p{margin-top:10px;font-size:14.5px;color:var(--muted);line-height:1.8}
.band-card .tag{
  display:inline-block;margin-top:16px;font-size:12.5px;font-weight:600;
  color:var(--accent);background:var(--accent-soft);border-radius:var(--r-pill);padding:4px 12px;
}
.band-hint{font-size:13px;color:var(--muted);margin-top:2px}

/* ---------- FAQ 两列网格 ---------- */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.faq-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;position:relative;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.faq-card::before{
  content:"";position:absolute;left:0;top:26px;width:3px;height:26px;border-radius:0 3px 3px 0;background:var(--brand);
}
.faq-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(255,90,31,.35)}
.faq-card h3{font-size:17px;font-weight:700;color:var(--ink);padding-left:14px}
.faq-card p{margin-top:12px;padding-left:14px;font-size:15px;color:var(--text);line-height:1.85}
.faq-card .mini{
  display:inline-block;margin:14px 0 0 14px;font-size:12.5px;font-weight:600;color:var(--brand);
  background:var(--brand-soft);border-radius:var(--r-pill);padding:3px 11px;
}

/* ---------- 清单 ---------- */
.check-flex{display:grid;grid-template-columns:.9fr 1.1fr;gap:44px;align-items:center}
.check-figure{
  border-radius:var(--r-card);overflow:hidden;border:1px solid rgba(255,90,31,.2);
  aspect-ratio:4/3;background:var(--panel);
}
.check-figure img{width:100%;height:100%;object-fit:cover}
.check-list{display:flex;flex-direction:column;gap:0;margin-top:8px}
.check-list li{
  display:flex;gap:14px;padding:18px 0;border-bottom:1px solid var(--line);font-size:15.5px;color:var(--text);
}
.check-list li:first-child{border-top:1px solid var(--line)}
.check-list li .tick{
  flex:0 0 auto;width:24px;height:24px;border-radius:50%;
  background:var(--accent-soft);color:var(--accent);font-weight:800;font-size:13px;
  display:flex;align-items:center;justify-content:center;margin-top:4px;
}
.check-list li b{display:block;color:var(--ink);font-weight:600;margin-bottom:2px}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--dark);border-radius:18px;padding:52px 48px;
  display:grid;grid-template-columns:1.3fr .7fr;gap:36px;align-items:center;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(15,181,166,.4),transparent 65%);
}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;color:#fff;line-height:1.35}
.cta-band p{margin-top:14px;color:#C9C3D6;font-size:15.5px;max-width:560px}
.cta-actions{display:flex;flex-direction:column;gap:12px;position:relative;z-index:1}
.cta-actions .btn{width:100%}
.btn-soft{background:#fff;color:var(--ink)}
.btn-soft:hover{background:var(--brand-soft);color:var(--brand-dark)}
.cta-note{font-size:12.5px;color:#8F89A0;text-align:center}

/* ---------- 表单 / Reveal ---------- */
.reveal-overlay{background:rgba(23,19,38,.5)}
.reveal{
  border:0;border-radius:16px;padding:30px 28px;max-height:90vh;overflow:auto;
  box-shadow:0 30px 60px -30px rgba(23,19,38,.6);
}
.reveal h3{font-size:20px;font-weight:700;color:var(--ink)}
.reveal .sub{margin-top:8px;font-size:14px;color:var(--muted)}
.form-grid{display:grid;gap:16px;margin-top:22px}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--ink);margin-bottom:7px}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--r-btn);
  padding:0 14px;height:46px;background:#fff;color:var(--ink);outline:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:auto;padding:12px 14px;line-height:1.7;resize:vertical;min-height:96px}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--brand);box-shadow:0 0 0 4px rgba(255,90,31,.12)}
.pill-group{display:flex;flex-wrap:wrap;gap:10px}
.pill-group label{
  display:inline-flex;align-items:center;gap:6px;margin:0;
  font-size:13.5px;font-weight:500;color:var(--text);
  border:1px solid var(--line);border-radius:var(--r-pill);padding:8px 16px;cursor:pointer;
  transition:all .2s ease;
}
.pill-group input{width:auto;height:auto;margin:0;accent-color:var(--brand)}
.pill-group label:hover{border-color:var(--brand);color:var(--brand)}
.form-submit{
  width:100%;height:48px;border:0;border-radius:var(--r-btn);
  background:var(--brand);color:#fff;font-weight:600;letter-spacing:.4px;
  transition:background .2s ease,transform .15s ease;
}
.form-submit:hover{background:var(--brand-dark);transform:translateY(-1px)}
.form-submit:active{transform:none}
.form-privacy{font-size:12.5px;color:var(--muted);margin-top:2px}
.form-privacy a{color:var(--brand);font-weight:600;border-bottom:1px solid rgba(255,90,31,.4)}
.close-button{width:44px;height:44px;border-radius:50%;top:14px;right:14px;color:var(--muted)}
.close-button:hover{background:var(--brand-soft);color:var(--brand)}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:#B8B2C6;padding:66px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:38px;padding-bottom:44px}
.site-footer .logo-text b{color:#fff}
.site-footer .logo-text span{color:#8F89A0}
.footer-brand p{margin-top:16px;font-size:14.5px;line-height:1.9;color:#A9A3B8;max-width:340px}
.footer-brand .contact{margin-top:14px;font-size:13.5px;color:#8F89A0}
.footer-brand .contact b{color:var(--accent)}
.site-footer h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.site-footer ul li{margin-bottom:11px}
.site-footer ul a{font-size:14px;color:#B8B2C6}
.site-footer ul a:hover{color:var(--brand)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:12px;color:#7E7889;
}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  .section{padding:64px 0}
  .page-hero-grid{grid-template-columns:1fr;gap:32px}
  .cta-band{grid-template-columns:1fr;padding:40px 30px}
  .check-flex{grid-template-columns:1fr;gap:30px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media screen and (max-width:767px){
  .grid-container{padding-left:20px;padding-right:20px}
  .nav-top{flex-wrap:wrap;gap:14px}
  .search-form{order:3;flex:1 1 100%;max-width:100%;margin:0}
  .logo-text b{font-size:16px}
  .section{padding:52px 0}
  .page-hero{padding:30px 0 48px}
  .compare{grid-template-columns:1fr}
  .faq-grid{grid-template-columns:1fr}
  .compare-col,.faq-card,.band-card{padding:22px 20px}
  .band-card{flex:0 0 82%}
  .cta-band{padding:34px 24px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;gap:6px}
  h2.title{font-size:22px}
  h2.title::before{height:19px;margin-top:6px}
}
@media screen and (max-width:519px){
  body{font-size:15px}
  .page-hero h1{font-size:26px}
  .lead{font-size:15px}
  .btn{width:100%}
  .hero-tags .badge{font-size:12.5px}
  .band-card{flex:0 0 88%}
}

/* roulang page: category2 */
:root{
  --primary:#FF5A1F;
  --primary-dark:#D93F06;
  --primary-light:#FFF0E8;
  --accent:#0FB5A6;
  --yellow:#FFC845;
  --ink:#171326;
  --title:#1C1728;
  --text:#3B3548;
  --muted:#7E7889;
  --line:#EDE9F2;
  --bg:#FFFFFF;
  --warm:#FFF8F4;
  --panel:#F5F6FA;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-card:0 1px 2px rgba(23,19,38,.06), 0 10px 28px -14px rgba(28,23,40,.16);
  --shadow-hover:0 2px 4px rgba(23,19,38,.07), 0 18px 38px -16px rgba(28,23,40,.24);
  --font-cn:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;
  --font-num:'Inter','Roboto',Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;padding:0;
  font-family:var(--font-cn);
  font-size:16px;line-height:1.85;color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;border-radius:var(--radius-img);}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;padding:0;}
ul,ol{list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}
.num,.stat{font-family:var(--font-num);font-variant-numeric:tabular-nums;}

.grid-container{max-width:1200px;padding-left:20px;padding-right:20px;margin:0 auto;}
@media screen and (min-width:992px){
  .grid-container{padding-left:24px;padding-right:24px;}
}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-stuck{box-shadow:0 8px 24px -18px rgba(28,23,40,.45);}
.nav-wrap{padding:14px 0 10px;transition:padding .25s ease;}
.site-header.is-stuck .nav-wrap{padding:8px 0 6px;}
.nav-top{display:flex;align-items:center;gap:20px;flex-wrap:nowrap;}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:42px;height:42px;border-radius:13px;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,#FF7A45,#FF5A1F 45%,#D93F06);
  color:#fff;font-size:20px;font-weight:800;letter-spacing:-1px;
  box-shadow:0 8px 18px -10px rgba(217,63,6,.85);
}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-text b{font-size:16px;font-weight:800;color:var(--title);letter-spacing:-.2px;}
.logo-text span{font-size:12px;color:var(--muted);letter-spacing:.6px;}
.search-form{
  position:relative;flex:1 1 auto;max-width:560px;
  display:flex;align-items:center;
  height:46px;border-radius:var(--radius-pill);
  background:var(--panel);border:1px solid var(--line);
  padding-left:42px;padding-right:4px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.search-form:focus-within{
  border-color:var(--primary);background:#fff;
  box-shadow:0 0 0 4px rgba(255,90,31,.12);
}
.search-form svg{
  position:absolute;left:16px;top:50%;transform:translateY(-50%);
  width:18px;height:18px;stroke:var(--muted);stroke-width:2;fill:none;
  stroke-linecap:round;stroke-linejoin:round;
}
.search-form input[type="search"]{
  flex:1 1 auto;min-width:0;height:44px;border:0;background:transparent;
  font-size:14px;outline:none;padding:0 8px 0 0;
}
.search-form input[type="search"]::placeholder{color:#A9A3B4;}
.search-form button{
  flex:0 0 auto;height:38px;padding:0 20px;border:0;cursor:pointer;
  border-radius:var(--radius-pill);background:var(--primary);color:#fff;
  font-size:14px;font-weight:600;transition:background .2s ease,transform .15s ease;
}
.search-form button:hover{background:var(--primary-dark);}
.search-form button:active{transform:scale(.98);}
.nav-cats{
  display:flex;align-items:center;gap:8px;margin-top:12px;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;padding-bottom:2px;
}
.nav-cats::-webkit-scrollbar{display:none;}
.nav-cats a{
  flex:0 0 auto;padding:7px 16px;border-radius:var(--radius-pill);
  font-size:14px;color:var(--text);border:1px solid transparent;white-space:nowrap;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.nav-cats a:hover{background:var(--primary-light);color:var(--primary);}
.nav-cats a.active{background:var(--primary);color:#fff;border-color:var(--primary);}

/* ============ 页头横幅 ============ */
.banner{
  position:relative;background:var(--warm);border-bottom:1px solid var(--line);
  padding:56px 0 48px;overflow:hidden;
}
.banner::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,90,31,.18) 1px,transparent 1px);
  background-size:22px 22px;opacity:.5;pointer-events:none;
}
.banner::after{
  content:"";position:absolute;right:-120px;top:-80px;width:340px;height:340px;
  background:linear-gradient(140deg,rgba(15,181,166,.16),rgba(255,90,31,.12));
  transform:rotate(28deg);border-radius:64px;pointer-events:none;
}
.banner .grid-container{position:relative;z-index:2;}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:18px;flex-wrap:wrap;}
.crumb a{color:var(--primary);font-weight:600;}
.crumb a:hover{text-decoration:underline;}
.crumb span.sep{color:#C8C2D2;}
.banner-grid{display:grid;grid-template-columns:1fr;gap:32px;align-items:center;}
.banner h1{
  font-size:clamp(28px,4.4vw,50px);font-weight:800;line-height:1.2;
  letter-spacing:-.5px;color:var(--title);
}
.banner h1 em{font-style:normal;color:var(--primary);}
.lede{font-size:16px;color:var(--text);margin-top:16px;max-width:640px;}
.banner-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:var(--radius-pill);
  background:#fff;border:1px solid var(--line);
  font-size:13px;color:var(--text);
}
.tag i{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block;}
.banner-figure{margin:0;}
.banner-figure img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:16px;
  border:1px solid rgba(255,90,31,.2);
  box-shadow:var(--shadow-card);
  background:linear-gradient(135deg,#FFE7DA,#FFF6F1);
}

/* ============ 通用板块 ============ */
.section{padding:80px 0;}
.section.warm{background:var(--warm);}
.section.cool{background:var(--panel);}
.section-head{margin-bottom:40px;max-width:760px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-num);font-size:13px;font-weight:600;letter-spacing:1.4px;
  color:var(--primary);text-transform:uppercase;margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--primary);border-radius:2px;}
h2.block-title{
  position:relative;padding-left:16px;
  font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.35;
  color:var(--title);letter-spacing:-.3px;
}
h2.block-title::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
  border-radius:3px;background:var(--primary);
}
.block-sub{margin-top:14px;font-size:15.5px;color:var(--muted);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .15s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 12px 24px -14px rgba(217,63,6,.9);}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);color:#fff;}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--title);border-color:var(--line);}
.btn-ghost:hover{border-color:rgba(255,90,31,.35);color:var(--primary);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-block{width:100%;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);
  position:relative;
}
.text-link::after{
  content:"";position:absolute;left:0;bottom:-3px;height:1.5px;width:100%;
  background:var(--primary);transform:scaleX(0);transform-origin:left;
  transition:transform .28s ease;
}
.text-link:hover::after{transform:scaleX(1);}

/* ============ 步骤条 ============ */
.steps-list{position:relative;margin-top:8px;}
.steps-list::before{
  content:"";position:absolute;left:21px;top:12px;bottom:12px;width:2px;
  background:linear-gradient(180deg,rgba(255,90,31,.55),rgba(15,181,166,.35));
  border-radius:2px;
}
.step{
  position:relative;display:grid;grid-template-columns:44px 1fr;gap:20px;
  padding:0 0 32px 0;
}
.step:last-child{padding-bottom:0;}
.step-node{
  position:relative;z-index:2;width:44px;height:44px;border-radius:50%;
  background:#fff;border:2px solid var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-weight:700;color:var(--primary);
  box-shadow:0 0 0 6px rgba(255,90,31,.1);
}
.step-body{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px 24px;box-shadow:var(--shadow-card);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.step:hover .step-body{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(255,90,31,.35);}
.step-body h3{font-size:18px;font-weight:600;color:var(--title);margin-bottom:8px;}
.step-body p{font-size:15px;color:var(--text);}
.step-meta{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--accent);font-weight:600;margin-top:12px;}

/* ============ 图文交替 ============ */
.split{display:grid;grid-template-columns:1fr;gap:32px;align-items:center;padding:36px 0;}
.split + .split{border-top:1px solid var(--line);}
.split figure{margin:0;}
.split figure img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:16px;border:1px solid rgba(255,90,31,.2);
  background:linear-gradient(135deg,#FFE7DA,#FFF6F1);
  box-shadow:var(--shadow-card);
}
.split h3{font-size:22px;font-weight:700;color:var(--title);margin-bottom:12px;letter-spacing:-.2px;}
.split p{font-size:15.5px;}
.split p + p{margin-top:14px;}
.check-list{margin-top:18px;display:grid;gap:10px;}
.check-list li{display:flex;gap:10px;font-size:15px;align-items:flex-start;}
.check-list li::before{
  content:"";flex:0 0 auto;width:8px;height:8px;margin-top:9px;border-radius:2px;
  background:var(--accent);transform:rotate(45deg);
}

/* ============ 条件卡组 ============ */
.cond-grid{display:grid;grid-template-columns:1fr;gap:24px;align-items:start;}
.cond-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px;box-shadow:var(--shadow-card);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.cond-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(255,90,31,.35);}
.cond-card.accent{background:var(--warm);border-color:rgba(255,90,31,.22);}
.cond-card h3{font-size:19px;font-weight:600;color:var(--title);margin-bottom:6px;}
.cond-card .cond-desc{font-size:14px;color:var(--muted);margin-bottom:18px;}
.cond-rows{display:grid;gap:14px;}
.cond-rows li{
  display:grid;grid-template-columns:96px 1fr;gap:14px;
  padding-bottom:14px;border-bottom:1px dashed var(--line);
  font-size:14.5px;
}
.cond-rows li:last-child{border-bottom:0;padding-bottom:0;}
.cond-rows b{color:var(--title);font-weight:600;}
.badge-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px;}
.badge{
  font-size:12.5px;padding:5px 12px;border-radius:var(--radius-pill);
  background:var(--primary-light);color:var(--primary-dark);font-weight:600;
}
.badge.teal{background:rgba(15,181,166,.12);color:#0A8F83;}
.badge.yellow{background:rgba(255,200,69,.24);color:#8A6100;}

/* ============ 数据条 ============ */
.data-band{
  background:var(--ink);color:#fff;border-radius:20px;
  padding:44px 32px;display:grid;grid-template-columns:1fr;gap:28px;
}
.data-item .stat{
  font-size:clamp(34px,5vw,54px);font-weight:800;line-height:1;color:#fff;
  letter-spacing:-1px;
}
.data-item .stat span{color:var(--accent);font-size:22px;margin-left:2px;}
.data-item p{margin-top:12px;font-size:14px;color:#B9B3C6;}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;}
.accordion{border:0;background:transparent;margin:0;}
.accordion .accordion-item{
  border:0;border-bottom:1px solid var(--line);background:transparent;
}
.accordion .accordion-title{
  display:flex;align-items:center;gap:14px;
  padding:22px 48px 22px 18px;font-size:16.5px;font-weight:600;color:var(--title);
  border:0;background:transparent;position:relative;
  transition:color .2s ease,background .2s ease;
}
.accordion .accordion-title::before{
  content:"";position:absolute;left:0;top:22px;bottom:22px;width:3px;border-radius:3px;
  background:var(--primary);opacity:0;transition:opacity .2s ease;
}
.accordion .accordion-title::after{
  content:"+";position:absolute;right:16px;top:50%;transform:translateY(-50%);
  width:28px;height:28px;border-radius:50%;background:var(--primary-light);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:600;
  transition:transform .25s ease,background .2s ease,color .2s ease;
}
.accordion .accordion-title[aria-expanded="true"]::after{
  content:"−";transform:translateY(-50%) rotate(180deg);background:var(--primary);color:#fff;
}
.accordion .accordion-title[aria-expanded="true"]{color:var(--primary-dark);}
.accordion .accordion-title[aria-expanded="true"]::before{opacity:1;}
.accordion .accordion-title:hover{color:var(--primary);}
.accordion .accordion-content{
  padding:0 48px 24px 18px;border:0;background:transparent;
  font-size:15.5px;color:var(--text);
}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,#1E1833,#171326 55%,#241A3A);
  border-radius:24px;padding:52px 32px;color:#fff;
}
.cta-band::before{
  content:"";position:absolute;width:300px;height:300px;right:-80px;bottom:-140px;
  background:radial-gradient(circle,rgba(255,90,31,.35),transparent 68%);
}
.cta-band::after{
  content:"";position:absolute;width:220px;height:220px;left:-70px;top:-100px;
  background:radial-gradient(circle,rgba(15,181,166,.28),transparent 70%);
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1fr;gap:26px;align-items:center;}
.cta-band h2{font-size:clamp(22px,3vw,32px);font-weight:800;color:#fff;line-height:1.3;letter-spacing:-.4px;}
.cta-band p{margin-top:14px;font-size:15.5px;color:#C6C0D4;max-width:640px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.btn-light{background:#fff;color:var(--title);}
.btn-light:hover{background:var(--primary-light);color:var(--primary-dark);transform:translateY(-1px);}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.4);}
.btn-outline-light:hover{border-color:#fff;background:rgba(255,255,255,.09);color:#fff;transform:translateY(-1px);}

/* ============ 弹层表单 ============ */
.reveal-overlay{background:rgba(23,19,38,.55);}
.reveal.modal-card{
  border:0;border-radius:16px;width:560px;max-width:92vw;padding:0;
  box-shadow:0 30px 70px -30px rgba(10,8,20,.7);
}
.modal-head{
  padding:26px 28px 0;position:relative;
}
.modal-head h3{font-size:20px;font-weight:700;color:var(--title);}
.modal-head p{font-size:14px;color:var(--muted);margin-top:8px;}
.reveal .close-button{
  position:absolute;top:14px;right:14px;width:44px;height:44px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;color:var(--muted);font-size:24px;line-height:1;
  transition:background .2s ease,color .2s ease;
}
.reveal .close-button:hover{background:var(--primary-light);color:var(--primary);}
.modal-body{padding:22px 28px 28px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;font-weight:600;color:var(--title);margin-bottom:8px;}
.field input,.field select,.field textarea{
  width:100%;height:46px;border-radius:var(--radius-btn);
  border:1px solid var(--line);background:#fff;padding:0 14px;
  font-size:14.5px;outline:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:auto;padding:12px 14px;min-height:96px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--primary);box-shadow:0 0 0 4px rgba(255,90,31,.12);
}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  position:relative;display:inline-flex;align-items:center;
  padding:8px 16px;border-radius:var(--radius-pill);
  border:1px solid var(--line);font-size:14px;color:var(--text);cursor:pointer;
  transition:all .2s ease;background:#fff;
}
.chip input{position:absolute;opacity:0;pointer-events:none;}
.chip:hover{border-color:rgba(255,90,31,.4);color:var(--primary);}
.chip:has(input:checked){background:var(--primary-light);border-color:var(--primary);color:var(--primary-dark);font-weight:600;}
.privacy-note{font-size:12.5px;color:var(--muted);margin-top:14px;line-height:1.7;}
.privacy-note a{color:var(--primary);}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:#B9B3C6;padding:64px 0 0;margin-top:8px;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:36px;}
.site-footer .logo-text b{color:#fff;}
.site-footer .logo-text span{color:#8E88A0;}
.footer-brand p{font-size:14px;margin-top:18px;max-width:340px;line-height:1.85;}
.footer-brand .contact{margin-top:16px;font-size:13.5px;color:#8E88A0;}
.footer-brand .contact b{color:var(--accent);font-family:var(--font-num);}
.site-footer h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:18px;letter-spacing:.2px;}
.site-footer ul{display:grid;gap:11px;}
.site-footer ul a{font-size:14px;color:#B9B3C6;}
.site-footer ul a:hover{color:var(--primary);}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.09);
  padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:12px;color:#7A7489;
}

/* ============ 响应式 ============ */
@media screen and (max-width:991px){
  .section{padding:64px 0;}
  .banner{padding:44px 0 40px;}
}
@media screen and (min-width:768px){
  .banner-grid{grid-template-columns:7fr 5fr;gap:40px;}
  .split{grid-template-columns:1fr 1fr;gap:48px;}
  .split.reverse .split-text{order:2;}
  .split.reverse figure{order:1;}
  .cond-grid{grid-template-columns:1fr 1fr;}
  .data-band{grid-template-columns:repeat(3,1fr);padding:48px 40px;}
  .cta-inner{grid-template-columns:1.4fr 1fr;gap:32px;}
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;}
  .cta-band{padding:60px 56px;}
}
@media screen and (max-width:767px){
  .nav-top{flex-wrap:wrap;gap:12px;}
  .search-form{order:3;flex:1 1 100%;max-width:none;}
  .logo-text b{font-size:15px;}
  .step{grid-template-columns:36px 1fr;gap:14px;}
  .step-node{width:36px;height:36px;font-size:14px;}
  .steps-list::before{left:17px;}
  .step-body{padding:18px 18px;}
  .cond-card{padding:22px;}
  .cond-rows li{grid-template-columns:1fr;gap:4px;}
  .accordion .accordion-title{padding:18px 44px 18px 14px;font-size:15.5px;}
  .accordion .accordion-content{padding:0 16px 20px 14px;font-size:15px;}
  .cta-band{padding:36px 22px;border-radius:18px;}
  .data-band{padding:34px 22px;border-radius:16px;}
  .footer-grid{gap:28px;}
}
@media screen and (max-width:519px){
  .banner h1{font-size:26px;}
  h2.block-title{font-size:22px;}
  .btn{width:100%;}
  .cta-actions{flex-direction:column;}
}