/* roulang page: index */
:root{
  --primary:#2E2A5C;
  --primary-deep:#171430;
  --primary-soft:#4A4488;
  --amber:#DE8F33;
  --teal:#3E8E8A;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --contrast:#F1EEE7;
  --line:#E6E2D8;
  --divider:#ECE8DE;
  --text:#262336;
  --text-2:#6E6A7C;
  --ok:#2F8A6B;
  --err:#C4553F;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --shadow-1:0 1px 2px rgba(23,20,48,.06), 0 8px 24px rgba(23,20,48,.05);
  --shadow-2:0 12px 32px rgba(23,20,48,.10);
  --ease:cubic-bezier(.2,.6,.3,1);
  --font-sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-serif:"Noto Serif SC","Songti SC","Source Han Serif SC","SimSun",Georgia,serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.88;
  letter-spacing:.01em;
  text-align:left;
  -webkit-font-smoothing:antialiased;
}
@media (min-width:1024px){ body{font-size:17px;} }
img{max-width:100%;display:block;height:auto;}
a{color:var(--primary);text-decoration:none;transition:color .18s var(--ease);}
a:hover{color:var(--primary-soft);}
h1,h2,h3,h4{font-family:var(--font-serif);font-weight:600;line-height:1.25;margin:0;color:var(--primary-deep);letter-spacing:.005em;}
h1{font-size:clamp(28px,4.2vw,46px);}
h2{font-size:clamp(22px,3vw,34px);}
h3{font-size:clamp(18px,2vw,22px);}
p{margin:0 0 1.4em;color:var(--text-2);}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:none;background:none;}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
@media (max-width:1439px){ .container{max-width:1140px;} }
@media (max-width:1023px){ .container{padding:0 24px;} }
@media (max-width:519px){ .container{padding:0 20px;} }
.section{padding:96px 0;}
@media (max-width:1023px){ .section{padding:64px 0;} }
@media (max-width:519px){ .section{padding:48px 0;} }
.section-contrast{background:var(--contrast);}
.section-dark{background:var(--primary-deep);color:#fff;position:relative;overflow:hidden;}
.section-dark::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(circle, rgba(255,255,255,.08) 1px, transparent 1px);
  background-size:34px 34px;
}
.section-soft{background:linear-gradient(180deg,#EFEBF6 0%, #E8E4F1 100%);}
.section-head{max-width:760px;margin-bottom:48px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.08em;color:var(--teal);
  text-transform:uppercase;font-weight:500;margin-bottom:14px;
}
.section-head .eyebrow::before{content:"";width:22px;height:1px;background:var(--teal);opacity:.6;}
.section-head h2{margin-bottom:16px;}
.section-head .lead{font-size:17px;line-height:1.85;color:var(--text-2);}
.muted{color:var(--text-2);}
.num{font-variant-numeric:tabular-nums;}

/* ===== header ===== */
.site-header{
  position:sticky;top:0;z-index:200;
  background:var(--surface);
  border-bottom:1px solid transparent;
  transition:box-shadow .24s var(--ease), border-color .24s var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--divider);box-shadow:0 4px 18px rgba(23,20,48,.06);}
.header-inner{display:flex;align-items:center;gap:32px;height:72px;transition:height .24s var(--ease);}
.site-header.is-scrolled .header-inner{height:60px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--primary-deep);}
.brand:hover{color:var(--primary);}
.brand-mark{width:34px;height:34px;display:grid;place-items:center;border-radius:10px;background:linear-gradient(135deg,var(--primary) 0%,var(--primary-deep) 100%);}
.brand-mark svg{width:20px;height:20px;}
.brand-text{font-family:var(--font-serif);font-weight:700;font-size:19px;letter-spacing:.02em;white-space:nowrap;}
.nav-main{flex:1 1 auto;}
.nav-list{display:flex;align-items:center;gap:6px;}
.nav-item{position:relative;}
.nav-item > a{
  display:inline-flex;align-items:center;height:44px;padding:0 14px;
  font-size:15px;font-weight:500;color:var(--text);border-radius:8px;position:relative;
}
.nav-item > a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:6px;height:2px;
  background:var(--amber);transform:scaleX(0);transform-origin:left center;
  transition:transform .2s var(--ease);
}
.nav-item > a:hover{color:var(--primary);}
.nav-item > a:hover::after,.nav-item.is-active > a::after{transform:scaleX(1);}
.nav-item.is-active > a{color:var(--primary);font-weight:600;}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.icon-btn{
  width:44px;height:44px;border-radius:10px;display:grid;place-items:center;
  color:var(--text);transition:background .18s var(--ease),color .18s var(--ease);
}
.icon-btn:hover{background:var(--contrast);color:var(--primary);}
.icon-btn svg{width:20px;height:20px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:500;letter-spacing:.01em;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
  border:1px solid transparent;white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 18px rgba(46,42,92,.22);}
.btn-primary:hover{background:#3A3570;color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(46,42,92,.26);}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(46,42,92,.2);}
.btn-amber{background:var(--amber);color:#1B1206;}
.btn-amber:hover{background:#E79C45;color:#1B1206;transform:translateY(-1px);}
.btn-ghost{border-color:var(--line);color:var(--primary);background:var(--surface);}
.btn-ghost:hover{border-color:var(--primary-soft);background:#F4F2FB;color:var(--primary);}
.btn-text{min-height:auto;padding:0;color:var(--primary);gap:6px;}
.btn-text svg{width:16px;height:16px;transition:transform .18s var(--ease);}
.btn-text:hover svg{transform:translateX(4px);}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}

/* mega */
.has-mega .mega-panel{
  position:absolute;top:calc(100% + 12px);left:-12px;width:840px;max-width:88vw;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-2);padding:26px;
  display:grid;grid-template-columns:1.05fr .95fr;gap:26px;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .12s var(--ease),transform .12s var(--ease),visibility .12s linear;
}
.has-mega:hover .mega-panel,.has-mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0);transition-delay:0s;}
.mega-col-title{font-size:13px;letter-spacing:.08em;color:var(--text-2);font-weight:500;margin-bottom:12px;}
.mega-links li + li{border-top:1px solid var(--divider);}
.mega-links a{display:block;padding:12px 4px;border-radius:8px;}
.mega-links a:hover{background:#F6F4FB;}
.mega-links .mega-link-title{display:block;font-size:15px;font-weight:600;color:var(--primary-deep);line-height:1.5;}
.mega-links .mega-link-desc{display:block;font-size:13px;color:var(--text-2);line-height:1.6;margin-top:2px;}
.mega-cards{display:grid;gap:12px;}
.mega-card{display:flex;gap:12px;padding:10px;border:1px solid var(--line);border-radius:var(--r-card);background:var(--surface);transition:box-shadow .18s var(--ease),transform .18s var(--ease);}
.mega-card:hover{box-shadow:var(--shadow-1);transform:translateY(-2px);}
.mega-card img{width:76px;height:60px;object-fit:cover;border-radius:8px;flex:0 0 auto;background:linear-gradient(135deg,var(--primary),var(--teal));}
.mega-card .mega-card-title{font-size:14px;font-weight:500;color:var(--primary-deep);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.mega-card .mega-card-meta{font-size:12px;color:var(--text-2);margin-top:4px;}

/* search layer */
.search-layer{
  display:none;border-top:1px solid var(--divider);background:var(--surface);
}
.search-layer.is-open{display:block;}
.search-layer .container{padding-top:16px;padding-bottom:18px;}
.search-form{display:flex;gap:12px;max-width:640px;}
.search-form input{
  flex:1;height:46px;border:1px solid var(--line);border-radius:var(--r-btn);
  padding:0 14px;background:#FCFBF8;
}
.search-form input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(46,42,92,.15);}

/* mobile drawer */
.menu-toggle{display:none;}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(360px,88vw);z-index:300;
  background:var(--surface);box-shadow:-12px 0 40px rgba(23,20,48,.18);
  transform:translateX(102%);transition:transform .26s var(--ease);
  display:flex;flex-direction:column;padding:20px 22px 26px;overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-nav li{border-bottom:1px solid var(--divider);}
.drawer-nav a{display:flex;align-items:center;justify-content:space-between;min-height:52px;font-size:16px;font-weight:500;color:var(--text);}
.drawer-nav a:hover{color:var(--primary);}
.drawer-foot{margin-top:auto;padding-top:22px;}
.drawer-mask{
  position:fixed;inset:0;background:rgba(23,20,48,.42);z-index:290;
  opacity:0;visibility:hidden;transition:opacity .24s var(--ease),visibility .24s linear;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
@media (max-width:1023px){
  .nav-main{display:none;}
  .menu-toggle{display:grid;}
  .header-actions .btn-sm{display:none;}
}

/* ===== top notice ===== */
.notice-bar{background:var(--primary-deep);color:rgba(255,255,255,.86);font-size:13px;}
.notice-bar .container{display:flex;align-items:center;justify-content:center;gap:14px;min-height:36px;position:relative;}
.notice-bar strong{color:#fff;font-weight:600;}
.notice-bar button{color:rgba(255,255,255,.7);line-height:1;padding:6px;border-radius:6px;position:absolute;right:32px;}
.notice-bar button:hover{color:#fff;background:rgba(255,255,255,.1);}
@media (max-width:1023px){ .notice-bar button{right:24px;} }

/* ===== hero ===== */
.hero{background:var(--bg);position:relative;padding:76px 0 0;}
.hero-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center;padding-bottom:76px;}
.hero h1{margin-bottom:20px;}
.hero .hero-sub{font-size:17px;line-height:1.85;color:var(--text-2);max-width:520px;margin-bottom:30px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.trust-row{display:flex;flex-wrap:wrap;gap:22px;}
.trust-item{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--text-2);}
.trust-item svg{width:18px;height:18px;color:var(--teal);flex:0 0 auto;}
.hero-visual{position:relative;}
.hero-figure{position:relative;border-radius:16px;overflow:hidden;box-shadow:var(--shadow-1);aspect-ratio:4/3;background:linear-gradient(135deg,var(--primary),var(--primary-soft));}
.hero-figure img{width:100%;height:100%;object-fit:cover;}
.hero-figure::after{content:"";position:absolute;inset:0;background:linear-gradient(160deg,rgba(46,42,92,.42),rgba(23,20,48,.24));}
.hero-float{
  position:absolute;left:-18px;bottom:26px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-2);
  padding:16px 20px;min-width:186px;
}
.hero-float .num{font-family:var(--font-serif);font-size:30px;font-weight:700;color:var(--primary-deep);line-height:1.2;display:block;}
.hero-float .lbl{font-size:13px;color:var(--text-2);}
.hero-slant{height:96px;background:var(--primary-deep);position:relative;overflow:hidden;}
.hero-slant::before{content:"";position:absolute;inset:0;background:var(--bg);clip-path:polygon(0 0,100% 0,0 100%);}
@media (max-width:1023px){
  .hero{padding-top:48px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;padding-bottom:56px;}
  .hero-float{left:12px;bottom:12px;}
  .hero-slant{height:64px;}
}

/* ===== stats ===== */
.stats{padding:72px 0 80px;position:relative;z-index:2;}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;}
.stat-item{padding:8px 28px;border-top:1px solid rgba(255,255,255,.12);border-bottom:1px solid rgba(255,255,255,.12);position:relative;}
.stat-item + .stat-item::before{content:"";position:absolute;left:0;top:14%;bottom:14%;width:1px;background:rgba(255,255,255,.12);}
.stat-item .stat-num{font-family:var(--font-serif);font-variant-numeric:tabular-nums;font-size:clamp(32px,4vw,52px);font-weight:700;line-height:1.1;color:#fff;display:block;}
.stat-item .stat-num em{font-style:normal;color:var(--amber);font-size:.5em;margin-left:4px;}
.stat-item .stat-lbl{margin-top:10px;font-size:14px;color:rgba(255,255,255,.72);}
@media (max-width:1023px){
  .stats{padding:48px 0 56px;}
  .stats-grid{grid-template-columns:repeat(2,1fr);row-gap:24px;}
  .stat-item{padding:6px 18px;}
  .stat-item:nth-child(odd)::before{display:none;}
}
@media (max-width:519px){
  .stat-item .stat-lbl{font-size:13px;}
}

/* ===== bento services ===== */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.bento-card{
  grid-column:span 3;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);padding:24px;
  transition:border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
  display:flex;flex-direction:column;gap:12px;
}
.bento-card:hover{border-color:rgba(46,42,92,.3);transform:translateY(-2px);box-shadow:var(--shadow-2);}
.bento-card .card-icon{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:#F3F1FA;color:var(--primary);
}
.bento-card .card-icon svg{width:22px;height:22px;}
.bento-card h3{font-size:18px;}
.bento-card p{font-size:14px;line-height:1.75;margin:0;}
.bento-card .btn-text{margin-top:auto;font-size:14px;}
.bento-main{
  grid-column:span 6;grid-row:span 2;
  padding:0;overflow:hidden;gap:0;
}
.bento-main .bento-main-media{aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,var(--primary),var(--teal));}
.bento-main .bento-main-media img{width:100%;height:100%;object-fit:cover;}
.bento-main .bento-main-body{padding:26px 26px 28px;display:flex;flex-direction:column;gap:14px;flex:1;}
.bento-main h3{font-size:clamp(20px,2.2vw,24px);}
.bento-main p{font-size:15px;line-height:1.8;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.tag{display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:var(--r-pill);font-size:12px;background:#F1EEF8;color:var(--primary);}
.tag-teal{background:#E7F1F0;color:var(--teal);}
.tag-amber{background:#FBF0DF;color:#9A5C10;}
@media (max-width:1199px){
  .bento-card{grid-column:span 6;}
  .bento-main{grid-column:span 12;grid-row:auto;}
}
@media (max-width:767px){
  .bento-card{grid-column:span 12;}
}

/* ===== compare ===== */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;position:relative;}
.compare-col{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:30px;box-shadow:var(--shadow-1);}
.compare-col.is-accent{border-color:rgba(46,42,92,.24);}
.compare-col h3{margin-bottom:8px;font-size:20px;}
.compare-col .compare-note{font-size:13px;color:var(--text-2);margin-bottom:20px;}
.compare-list li{display:flex;gap:12px;padding:12px 0;border-top:1px solid var(--divider);font-size:15px;line-height:1.75;color:var(--text);}
.compare-list li:first-child{border-top:none;}
.compare-list .mark{flex:0 0 auto;width:20px;height:20px;margin-top:5px;}
.compare-list .mark svg{width:20px;height:20px;}
.mark-cross{color:var(--err);}
.mark-check{color:var(--ok);}
.compare-badge{
  position:absolute;left:50%;top:52%;transform:translate(-50%,-50%);
  width:52px;height:52px;border-radius:50%;background:var(--surface);
  border:1px solid var(--line);box-shadow:var(--shadow-1);display:grid;place-items:center;color:var(--primary);
}
.compare-badge svg{width:22px;height:22px;}
.compare-badge::before{content:"";position:absolute;left:50%;top:-70px;bottom:70px;width:1px;background:repeating-linear-gradient(to bottom,var(--line) 0 6px,transparent 6px 12px);}
.bars{margin-top:52px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:30px;box-shadow:var(--shadow-1);}
.bars h3{font-size:18px;margin-bottom:22px;}
.bar-row{margin-bottom:20px;}
.bar-row:last-child{margin-bottom:0;}
.bar-meta{display:flex;justify-content:space-between;font-size:14px;color:var(--text-2);margin-bottom:8px;}
.bar-track{height:10px;border-radius:var(--r-pill);background:#EAE7DF;overflow:hidden;}
.bar-fill{height:100%;border-radius:var(--r-pill);background:var(--primary);width:0;transition:width .8s var(--ease);}
.bar-fill.is-gray{background:#C3BFB2;}
@media (max-width:767px){
  .compare-grid{grid-template-columns:1fr;gap:24px;}
  .compare-badge{position:static;transform:none;margin:0 auto;display:grid;}
  .compare-badge::before{display:none;}
}

/* ===== testimonial ===== */
.voice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.voice-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:28px;box-shadow:var(--shadow-1);display:flex;flex-direction:column;gap:18px;transition:transform .2s var(--ease),box-shadow .2s var(--ease);}
.voice-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.voice-card blockquote{margin:0;font-size:15px;line-height:1.85;color:var(--text);}
.voice-person{display:flex;align-items:center;gap:12px;border-top:1px solid var(--divider);padding-top:16px;}
.voice-avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--teal));display:grid;place-items:center;color:#fff;font-size:14px;font-weight:600;flex:0 0 auto;}
.voice-person .name{font-size:14px;font-weight:600;color:var(--primary-deep);}
.voice-person .role{font-size:13px;color:var(--text-2);}
@media (max-width:1023px){ .voice-grid{grid-template-columns:1fr 1fr;} }
@media (max-width:767px){ .voice-grid{grid-template-columns:1fr;} }

/* ===== news ===== */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap;}
.news-layout{display:grid;grid-template-columns:1.08fr 1fr;gap:32px;align-items:start;}
.news-feature{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-1);display:block;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.news-feature:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.news-feature .media{aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,var(--primary),var(--primary-soft));}
.news-feature .media img{width:100%;height:100%;object-fit:cover;}
.news-feature .body{padding:26px;}
.news-feature h3{font-size:clamp(19px,2vw,23px);margin:14px 0 12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-feature p{font-size:15px;line-height:1.8;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.news-feature .foot{display:flex;align-items:center;justify-content:space-between;margin-top:16px;font-size:13px;color:var(--text-2);}
.news-list{display:flex;flex-direction:column;gap:14px;}
.news-item{
  display:grid;grid-template-columns:96px 1fr;gap:16px;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:14px;box-shadow:var(--shadow-1);border-left:3px solid transparent;
  transition:border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.news-item:hover{border-left-color:var(--amber);transform:translateX(2px);box-shadow:var(--shadow-2);}
.news-item .thumb{width:96px;height:72px;border-radius:10px;overflow:hidden;background:linear-gradient(135deg,var(--primary),var(--teal));}
.news-item .thumb img{width:100%;height:100%;object-fit:cover;}
.news-item h4{font-family:var(--font-sans);font-size:15px;font-weight:500;line-height:1.6;color:var(--primary-deep);margin:8px 0 6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-item .meta{font-size:12px;color:var(--text-2);}
.news-item .excerpt{font-size:13px;color:var(--text-2);line-height:1.7;margin-top:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--r-card);min-height:220px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  background:var(--surface);text-align:center;padding:40px 24px;
}
.empty-state svg{width:34px;height:34px;color:var(--primary-soft);opacity:.7;}
.empty-state p{margin:0;font-size:15px;color:var(--text-2);}
@media (max-width:1023px){
  .news-layout{grid-template-columns:1fr;gap:24px;}
  .news-item{grid-template-columns:80px 1fr;}
  .news-item .thumb{width:80px;height:64px;}
}

/* ===== faq ===== */
.faq-layout{display:grid;grid-template-columns:340px 1fr;gap:56px;align-items:start;}
.faq-intro .lead{font-size:16px;line-height:1.85;}
.faq-list{border-top:1px solid var(--divider);}
.faq-item{border-bottom:1px solid var(--divider);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 4px;font-size:18px;line-height:1.6;color:var(--primary-deep);font-weight:500;
  transition:color .18s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--primary);}
.faq-icon{position:relative;width:18px;height:18px;flex:0 0 auto;}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--primary-soft);border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease);}
.faq-icon::before{left:0;right:0;top:8px;height:2px;}
.faq-icon::after{top:0;bottom:0;left:8px;width:2px;}
.faq-item[open] .faq-icon::after{transform:scaleY(0);opacity:0;}
.faq-body{padding:0 4px 26px;border-top:1px solid var(--divider);margin-top:-1px;}
.faq-body p{font-size:16px;line-height:1.85;padding-top:18px;}
@media (max-width:1023px){
  .faq-layout{grid-template-columns:1fr;gap:28px;}
}

/* ===== consult ===== */
.consult-layout{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start;}
.consult-points li{display:flex;gap:12px;padding:14px 0;border-top:1px solid rgba(46,42,92,.14);font-size:16px;color:#312C63;line-height:1.75;}
.consult-points li:first-child{border-top:none;}
.consult-points svg{width:20px;height:20px;flex:0 0 auto;margin-top:5px;color:var(--amber);}
.form-card{background:var(--surface);border-radius:16px;padding:32px;box-shadow:var(--shadow-2);border:1px solid var(--line);}
.form-success{
  display:none;background:#E8F5EF;color:var(--ok);border:1px solid #BFE3D3;
  border-radius:10px;padding:12px 14px;font-size:14px;margin-bottom:18px;
}
.form-success.is-visible{display:block;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13px;color:var(--text-2);margin-bottom:8px;}
.field input[type="text"],.field input[type="tel"],.field select,.field textarea{
  width:100%;min-height:48px;border:1px solid var(--line);border-radius:var(--r-btn);
  padding:12px 14px;background:#FCFBF8;transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.field textarea{min-height:120px;resize:vertical;line-height:1.75;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(46,42,92,.15);background:#fff;
}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--err);}
.field .err-msg{display:none;font-size:14px;color:var(--err);margin-top:6px;}
.field.has-error .err-msg{display:block;}
.checkbox-row{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--text-2);margin-bottom:22px;line-height:1.7;}
.checkbox-row input{width:18px;height:18px;margin-top:3px;accent-color:var(--primary);}
@media (max-width:1023px){
  .consult-layout{grid-template-columns:1fr;gap:32px;}
}
@media (max-width:519px){
  .form-card{padding:24px;}
}

/* ===== footer ===== */
.site-footer{background:var(--primary-deep);color:rgba(255,255,255,.72);position:relative;overflow:hidden;}
.site-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(circle, rgba(255,255,255,.08) 1px, transparent 1px);
  background-size:30px 30px;
}
.footer-main{position:relative;display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding:72px 0 48px;}
.footer-brand .brand-text{color:#fff;}
.footer-brand p{color:rgba(255,255,255,.72);font-size:14px;line-height:1.85;margin:18px 0 20px;max-width:300px;}
.footer-contact li{font-size:14px;line-height:1.9;}
.footer-col h4{color:#fff;font-family:var(--font-sans);font-size:15px;font-weight:600;margin-bottom:18px;letter-spacing:.02em;}
.footer-col li{margin-bottom:12px;}
.footer-col a{color:rgba(255,255,255,.72);font-size:14px;}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  position:relative;border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:space-between;align-items:center;
  font-size:13px;color:rgba(255,255,255,.6);
}
.footer-bottom a{color:rgba(255,255,255,.72);}
.footer-bottom a:hover{color:#fff;}
@media (max-width:1023px){
  .footer-main{grid-template-columns:1fr 1fr;gap:32px;padding:52px 0 36px;}
}
@media (max-width:519px){
  .footer-main{grid-template-columns:1fr;}
}

/* roulang page: article */
:root{
  --brand:#2E2A5C;
  --brand-deep:#171430;
  --brand-light:#4A4488;
  --brand-soft:rgba(46,42,92,.08);
  --amber:#DE8F33;
  --cyan:#3E8E8A;
  --cyan-soft:rgba(62,142,138,.12);
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --contrast:#F1EEE7;
  --line:#E6E2D8;
  --divider:#ECE8DE;
  --text:#262336;
  --muted:#6E6A7C;
  --ok:#2F8A6B;
  --err:#C4553F;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(23,20,48,.06),0 8px 24px rgba(23,20,48,.05);
  --sh-2:0 12px 32px rgba(23,20,48,.10);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,"Times New Roman",serif;
  --sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",-apple-system,"Segoe UI",sans-serif;
  --mono:"JetBrains Mono","SFMono-Regular",Consolas,Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:var(--sans);font-size:17px;line-height:1.85;letter-spacing:.01em;
  text-align:left;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
h1,h2,h3,h4{font-family:var(--serif);font-weight:700;line-height:1.25;margin:0;letter-spacing:.01em;}
p{margin:0;}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;}
.container{
  width:100%;max-width:1200px;margin:0 auto;padding:0 32px;
}
@media (max-width:1200px){.container{max-width:1140px;}}
@media (max-width:1023px){.container{padding:0 24px;}}
@media (max-width:520px){.container{padding:0 20px;}}

/* ---------- 顶栏信息条 ---------- */
.topbar{background:var(--brand-deep);color:rgba(255,255,255,.86);font-size:13px;height:36px;display:flex;align-items:center;}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px;}
.topbar-text{display:flex;align-items:center;gap:8px;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;}
.topbar-dot{width:6px;height:6px;border-radius:50%;background:var(--amber);flex:0 0 auto;}
.topbar-close{color:rgba(255,255,255,.7);font-size:16px;line-height:1;padding:4px 6px;border-radius:6px;}
.topbar-close:hover{color:#fff;background:rgba(255,255,255,.1);}

/* ---------- 页头 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:var(--surface);
  border-bottom:1px solid transparent;transition:height .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 6px 20px rgba(23,20,48,.06);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;transition:height .2s ease;}
.site-header.is-scrolled .header-inner{height:60px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{width:30px;height:30px;display:inline-flex;align-items:center;justify-content:center;border-radius:9px;background:var(--brand-deep);flex:0 0 auto;}
.brand-mark svg{width:20px;height:20px;}
.brand-text{font-family:var(--serif);font-size:19px;font-weight:700;color:var(--brand);letter-spacing:.02em;white-space:nowrap;}

.nav-main{display:flex;align-items:center;}
.nav-list{display:flex;align-items:center;gap:6px;}
.nav-item{position:relative;}
.nav-item > a{
  position:relative;display:inline-flex;align-items:center;height:44px;padding:0 14px;
  font-size:15.5px;font-weight:500;color:var(--text);border-radius:8px;
}
.nav-item > a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;background:var(--amber);
  transform:scaleX(0);transform-origin:left center;transition:transform .2s ease;
}
.nav-item > a:hover{color:var(--brand);}
.nav-item > a:hover::after,.nav-item.is-active > a::after{transform:scaleX(1);}
.nav-item.is-active > a{color:var(--brand);font-weight:600;}

.mega-panel{
  position:absolute;top:calc(100% + 12px);left:50%;transform:translateX(-50%) translateY(-6px);
  width:min(780px,calc(100vw - 48px));background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-2);padding:22px;display:grid;
  grid-template-columns:1.05fr 1fr;gap:24px;
  opacity:0;visibility:hidden;pointer-events:none;transition:opacity .12s ease,transform .12s ease,visibility .12s;
}
.nav-item.has-mega:hover .mega-panel,.nav-item.has-mega:focus-within .mega-panel{
  opacity:1;visibility:visible;pointer-events:auto;transform:translateX(-50%) translateY(0);
}
.mega-panel::before{content:"";position:absolute;top:-14px;left:0;right:0;height:14px;}
.mega-col-title{font-size:12px;letter-spacing:.14em;color:var(--muted);margin-bottom:10px;}
.mega-links li + li{border-top:1px solid var(--divider);}
.mega-links a{display:block;padding:10px 8px;border-radius:8px;}
.mega-links a:hover{background:var(--brand-soft);}
.mega-link-title{display:block;font-size:14.5px;font-weight:500;color:var(--text);}
.mega-link-desc{display:block;font-size:12.5px;color:var(--muted);line-height:1.6;}
.mega-cards{display:grid;gap:12px;}
.mega-card{display:flex;gap:12px;padding:10px;border:1px solid var(--line);border-radius:var(--r-img);transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;}
.mega-card:hover{box-shadow:var(--sh-1);transform:translateY(-2px);border-color:rgba(46,42,92,.28);}
.mega-card img{width:76px;height:60px;object-fit:cover;border-radius:8px;flex:0 0 auto;}
.mega-card-title{display:block;font-size:13.5px;line-height:1.55;color:var(--text);margin-bottom:4px;}
.mega-card-meta{display:block;font-size:12px;color:var(--muted);}

.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.icon-btn{width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;border-radius:10px;color:var(--brand);}
.icon-btn:hover{background:var(--brand-soft);}
.icon-btn svg{width:19px;height:19px;}
.hamburger{width:44px;height:44px;display:none;flex-direction:column;align-items:center;justify-content:center;gap:5px;border-radius:10px;}
.hamburger span{display:block;width:20px;height:2px;background:var(--brand);border-radius:2px;}
.hamburger:hover{background:var(--brand-soft);}

.search-layer{
  border-top:1px solid var(--divider);background:var(--surface);display:none;padding:14px 0;
}
.search-layer.is-open{display:block;}
.search-form{display:flex;gap:10px;}
.search-form input{
  flex:1;height:48px;border:1px solid var(--line);border-radius:var(--r-btn);padding:0 16px;background:var(--bg);
  font-size:15px;transition:border-color .18s ease,box-shadow .18s ease;
}
.search-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(46,42,92,.15);}

.drawer-head,.drawer-foot{display:none;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);font-size:15px;font-weight:500;
  border:1px solid transparent;transition:transform .16s ease,box-shadow .16s ease,background-color .16s ease,color .16s ease,border-color .16s ease;
}
.btn svg{width:16px;height:16px;transition:transform .16s ease;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(23,20,48,.16);}
.btn-primary:hover{background:var(--brand-light);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);}
.btn-amber{background:var(--amber);color:#fff;}
.btn-amber:hover{background:#c97f28;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-ghost{border-color:var(--line);color:var(--brand);background:var(--surface);}
.btn-ghost:hover{background:var(--brand-soft);border-color:rgba(46,42,92,.3);}
.btn-sm{height:40px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}
.btn-text{color:var(--brand);display:inline-flex;align-items:center;gap:6px;font-size:14.5px;}
.btn-text:hover svg,.card:hover .card-arrow{transform:translateX(4px);}

/* ---------- 面包屑 ---------- */
.breadcrumb{padding:20px 0 0;font-size:13px;color:var(--muted);}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.breadcrumb li{display:flex;align-items:center;gap:8px;}
.breadcrumb li + li::before{content:"/";color:#c3bfb2;}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb [aria-current]{color:var(--text);}

/* ---------- 文章布局 ---------- */
.article-wrap{padding:28px 0 96px;}
.article-grid{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:52px;align-items:start;}
.article-main{min-width:0;}
.article-head{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:32px 36px;margin-bottom:28px;}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;font-size:12px;font-weight:500;background:var(--cyan-soft);color:var(--cyan);letter-spacing:.02em;}
.article-head h1{font-size:clamp(26px,3.4vw,38px);margin:16px 0 14px;color:var(--brand-deep);}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13.5px;color:var(--muted);}
.article-meta span{display:inline-flex;align-items:center;gap:6px;}
.article-meta .sep{width:3px;height:3px;border-radius:50%;background:#c9c4b8;display:inline-block;}

.article-body-wrap{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:38px 36px;}
.article-body{max-width:760px;margin:0 auto;font-size:17px;line-height:1.9;color:var(--text);}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.4em;}
.article-body h2{
  font-size:clamp(22px,2.6vw,28px);line-height:1.35;margin:2.2em 0 .8em;color:var(--brand-deep);
  padding-left:14px;border-left:3px solid var(--brand);
}
.article-body h3{font-size:19px;line-height:1.45;margin:1.8em 0 .7em;color:var(--brand-deep);}
.article-body h4{font-size:17px;margin:1.6em 0 .6em;}
.article-body ul,.article-body ol{padding-left:1.35em;margin:0 0 1.4em;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin:.5em 0;line-height:1.85;}
.article-body blockquote{
  margin:1.6em 0;padding:16px 22px;border-left:3px solid var(--amber);background:var(--contrast);
  border-radius:0 var(--r-img) var(--r-img) 0;color:#3b3752;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{max-width:100%;height:auto;border-radius:var(--r-img);margin:1.8em auto;}
.article-body figure{margin:1.8em 0;}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px;}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:1.6em 0;display:block;overflow-x:auto;}
.article-body th,.article-body td{border:1px solid var(--divider);padding:10px 14px;text-align:left;line-height:1.7;}
.article-body th{background:var(--contrast);font-weight:600;color:var(--brand-deep);}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--brand-light);}
.article-body hr{border:0;border-top:1px solid var(--divider);margin:2.4em 0;}
.article-body code{font-family:var(--mono);font-size:14px;background:var(--contrast);padding:2px 6px;border-radius:6px;}

.empty-state{
  border:1px dashed var(--line);border-radius:var(--r-img);padding:56px 24px;text-align:center;background:var(--bg);
}
.empty-state svg{width:34px;height:34px;margin:0 auto 14px;}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:18px;}

/* ---------- 标签 ---------- */
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:30px;padding-top:24px;border-top:1px solid var(--divider);}
.tag-row .tag-label{font-size:13px;color:var(--muted);margin-right:2px;}
.chip{
  display:inline-flex;align-items:center;height:26px;padding:0 13px;border-radius:999px;
  font-size:12.5px;background:var(--brand-soft);color:var(--brand);border:1px solid transparent;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.chip:hover{background:rgba(46,42,92,.14);}
.chip-cyan{background:var(--cyan-soft);color:var(--cyan);}
.chip-cyan:hover{background:rgba(62,142,138,.2);}

/* ---------- 上下篇 ---------- */
.postnav{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:34px;}
.postnav a{
  display:flex;flex-direction:column;gap:8px;padding:20px 22px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.postnav a:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(46,42,92,.28);}
.postnav .pn-label{font-size:12.5px;color:var(--muted);letter-spacing:.06em;}
.postnav .pn-title{font-size:15.5px;font-weight:500;line-height:1.6;color:var(--brand-deep);}
.postnav .next{align-items:flex-end;text-align:right;}

/* ---------- 相关推荐 & 相关板块 ---------- */
.section{padding:72px 0;}
.section-contrast{background:var(--contrast);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;}
.section-head h2{font-size:clamp(22px,3vw,34px);color:var(--brand-deep);}
.section-head p{font-size:15px;color:var(--muted);margin-top:10px;line-height:1.75;}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}

.card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(46,42,92,.28);}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,var(--brand),var(--amber));}
.card-media img{width:100%;height:100%;object-fit:cover;}
.card-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.card-title{font-size:17px;line-height:1.55;color:var(--brand-deep);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-desc{font-size:14px;line-height:1.7;color:var(--muted);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.card-foot{display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--muted);margin-top:auto;}
.card-arrow{width:16px;height:16px;transition:transform .16s ease;}

/* ---------- 侧栏 ---------- */
.article-aside{position:sticky;top:96px;display:grid;gap:20px;}
.aside-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:22px;}
.aside-card h3{font-size:15px;color:var(--brand-deep);margin-bottom:14px;letter-spacing:.02em;}
.toc-list li + li{border-top:1px solid var(--divider);}
.toc-list a{display:flex;gap:10px;padding:11px 0;font-size:14px;color:var(--muted);line-height:1.6;}
.toc-list a:hover{color:var(--brand);}
.toc-list .num{font-family:var(--mono);font-size:12.5px;color:var(--amber);flex:0 0 auto;font-variant-numeric:tabular-nums;}
.aside-list li + li{border-top:1px solid var(--divider);}
.aside-list a{display:block;padding:12px 0;font-size:14px;line-height:1.65;color:var(--text);}
.aside-list a:hover{color:var(--brand);}
.aside-list .meta{display:block;font-size:12.5px;color:var(--muted);margin-top:5px;}
.aside-cta{background:var(--brand-deep);color:#fff;border-radius:var(--r-card);padding:24px;position:relative;overflow:hidden;}
.aside-cta::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.16) 1px,transparent 1px);
  background-size:22px 22px;opacity:.5;
}
.aside-cta h3{color:#fff;font-size:17px;margin-bottom:10px;position:relative;z-index:1;}
.aside-cta p{font-size:13.5px;line-height:1.75;color:rgba(255,255,255,.72);margin-bottom:16px;position:relative;z-index:1;}
.aside-cta .btn{position:relative;z-index:1;width:100%;}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:.8fr 1.4fr;gap:48px;align-items:start;}
.faq-list{display:grid;gap:12px;}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;font-size:17px;line-height:1.6;color:var(--brand-deep);font-weight:500;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{position:relative;width:18px;height:18px;flex:0 0 auto;}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--amber);border-radius:2px;transition:transform .2s ease;}
.faq-icon::before{left:0;top:8px;width:18px;height:2px;}
.faq-icon::after{left:8px;top:0;width:2px;height:18px;}
.faq-item[open] .faq-icon::after{transform:scaleY(0);}
.faq-answer{padding:0 22px 22px;border-top:1px solid var(--divider);margin-top:0;padding-top:18px;font-size:15px;line-height:1.85;color:var(--muted);}

/* ---------- CTA ---------- */
.cta-band{background:var(--brand);color:#fff;border-radius:18px;padding:40px 44px;display:flex;align-items:center;justify-content:space-between;gap:28px;position:relative;overflow:hidden;}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.14) 1px,transparent 1px);background-size:24px 24px;opacity:.55;
}
.cta-band h2{font-size:clamp(20px,2.4vw,26px);color:#fff;position:relative;z-index:1;}
.cta-band p{font-size:14.5px;color:rgba(255,255,255,.78);margin-top:8px;position:relative;z-index:1;}
.cta-band .btn{position:relative;z-index:1;flex:0 0 auto;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-deep);color:rgba(255,255,255,.72);position:relative;overflow:hidden;margin-top:0;}
.site-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.14) 1px,transparent 1px);
  background-size:26px 26px;opacity:.5;
}
.footer-main{position:relative;z-index:1;display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-top:64px;padding-bottom:44px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand .brand-text{color:#fff;}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.7);max-width:330px;}
.footer-contact{margin-top:18px;display:grid;gap:8px;font-size:13.5px;color:rgba(255,255,255,.68);}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-family:var(--sans);font-weight:600;letter-spacing:.02em;}
.footer-col li + li{margin-top:10px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-col a:hover{color:var(--amber);}
.footer-bottom{
  position:relative;z-index:1;border-top:1px solid rgba(255,255,255,.12);padding-top:20px;padding-bottom:26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .article-grid{grid-template-columns:minmax(0,1fr);gap:36px;}
  .article-aside{display:none;}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:1023px){
  .nav-main{
    position:fixed;top:0;right:0;bottom:0;width:min(340px,86vw);background:var(--surface);
    flex-direction:column;align-items:stretch;padding:20px;gap:8px;overflow-y:auto;
    transform:translateX(100%);transition:transform .24s ease;box-shadow:-10px 0 40px rgba(23,20,48,.16);z-index:80;
  }
  .nav-main.is-open{transform:translateX(0);}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--divider);margin-bottom:8px;}
  .drawer-close{width:40px;height:40px;border-radius:10px;font-size:22px;color:var(--muted);line-height:1;}
  .drawer-close:hover{background:var(--brand-soft);color:var(--brand);}
  .drawer-foot{display:block;margin-top:18px;padding-top:18px;border-top:1px solid var(--divider);}
  .drawer-foot .btn{width:100%;}
  .nav-list{flex-direction:column;align-items:stretch;gap:2px;}
  .nav-item > a{height:48px;padding:0 10px;width:100%;border-radius:10px;font-size:16px;}
  .nav-item > a::after{display:none;}
  .nav-item > a:hover{background:var(--brand-soft);}
  .mega-panel{
    position:static;transform:none;width:100%;opacity:1;visibility:visible;pointer-events:auto;
    box-shadow:none;border:0;background:transparent;padding:0 0 10px 10px;display:none;grid-template-columns:1fr;
  }
  .mega-panel::before{display:none;}
  .nav-item.has-mega.is-open .mega-panel{display:grid;}
  .hamburger{display:flex;}
  .header-actions .btn-sm{display:none;}
  .article-head{padding:26px 24px;}
  .article-body-wrap{padding:28px 24px;}
  .faq-grid{grid-template-columns:1fr;gap:28px;}
  .footer-main{grid-template-columns:1fr 1fr;gap:32px;padding-top:48px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 28px;}
  .section{padding:64px 0;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .grid-3{grid-template-columns:1fr;}
  .postnav{grid-template-columns:1fr;}
  .postnav .next{align-items:flex-start;text-align:left;}
  .topbar-text span.topbar-long{display:none;}
  .footer-main{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .section{padding:48px 0;}
  .article-body{font-size:16px;}
}
@media (max-width:479px){
  body{font-size:15.5px;}
  .brand-text{font-size:17px;}
  .cta-band{padding:26px 20px;border-radius:14px;}
}

/* roulang page: category1 */
:root{
  --primary:#2E2A5C;
  --primary-dark:#171430;
  --primary-light:#4A4488;
  --amber:#DE8F33;
  --teal:#3E8E8A;
  --bg:#F7F5F0;
  --bg-alt:#F1EEE7;
  --surface:#FFFFFF;
  --line:#E6E2D8;
  --line-soft:#ECE8DE;
  --text:#262336;
  --text-2:#6E6A7C;
  --ok:#2F8A6B;
  --err:#C4553F;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(23,20,48,.06),0 8px 24px rgba(23,20,48,.05);
  --sh-2:0 12px 32px rgba(23,20,48,.10);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:88px}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-align:left;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--primary);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--primary-light)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-family:var(--serif);font-weight:600;line-height:1.3;color:var(--text)}
p{margin:0}
button,input,select,textarea{font:inherit;color:inherit}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:var(--surface);
  border-bottom:1px solid transparent;
  transition:box-shadow .2s ease,border-color .2s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 2px 14px rgba(23,20,48,.06)}
.header-inner{display:flex;align-items:center;gap:28px;height:72px;transition:height .2s ease}
.site-header.is-scrolled .header-inner{height:60px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{display:inline-flex;width:28px;height:28px}
.brand-mark svg{width:100%;height:100%}
.brand-text{font-family:var(--serif);font-weight:700;font-size:19px;letter-spacing:.02em;color:var(--primary-dark);white-space:nowrap}
.nav-main{flex:1 1 auto}
.nav-list{display:flex;align-items:center;gap:4px}
.nav-item{position:relative}
.nav-item > a{position:relative;display:block;padding:10px 14px;font-size:15.5px;color:var(--text);border-radius:8px}
.nav-item > a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:5px;height:2px;background:var(--amber);
  transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.nav-item > a:hover,.nav-item.is-active > a{color:var(--primary)}
.nav-item > a:hover::after,.nav-item.is-active > a::after{transform:scaleX(1)}
.mega-panel{
  position:absolute;top:calc(100% + 12px);left:-20px;width:780px;
  display:grid;grid-template-columns:1fr 1fr;gap:26px;
  padding:24px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-2);
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .16s ease,transform .16s ease,visibility .16s ease;
}
.nav-item.has-mega:hover .mega-panel,.nav-item.has-mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col-title{font-size:12.5px;letter-spacing:.08em;color:var(--text-2);margin-bottom:10px}
.mega-links li a{display:block;padding:10px 12px;border-radius:10px;transition:background .16s ease}
.mega-links li a:hover{background:var(--bg)}
.mega-link-title{display:block;font-size:14.5px;font-weight:500;color:var(--text)}
.mega-link-desc{display:block;font-size:12.5px;color:var(--text-2);line-height:1.6;margin-top:2px}
.mega-cards{display:grid;gap:10px}
.mega-card{display:flex;gap:12px;padding:10px;border:1px solid var(--line-soft);border-radius:12px;transition:border-color .16s ease,box-shadow .16s ease}
.mega-card:hover{border-color:rgba(46,42,92,.3);box-shadow:var(--sh-1)}
.mega-card img{width:76px;height:60px;object-fit:cover;border-radius:8px;flex:0 0 auto}
.mega-card-title{display:block;font-size:13.6px;line-height:1.55;color:var(--text);font-weight:500}
.mega-card-meta{display:block;font-size:12px;color:var(--text-2);margin-top:6px}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto;position:relative}
.icon-btn{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);background:var(--surface);border-radius:var(--r-btn);
  color:var(--primary);cursor:pointer;transition:background .16s ease,border-color .16s ease;
}
.icon-btn:hover{background:var(--bg);border-color:rgba(46,42,92,.3)}
.icon-btn svg{width:18px;height:18px}
.burger{display:none}
.search-pop{
  position:absolute;top:calc(100% + 10px);right:0;width:340px;display:none;gap:8px;
  padding:12px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-2);
}
.search-pop.is-open{display:flex}
.search-pop input{
  flex:1;height:44px;padding:0 14px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:var(--surface);font-size:14px;
}
.search-pop input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(46,42,92,.15)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:500;cursor:pointer;white-space:nowrap;
  transition:background .18s ease,color .18s ease,box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--primary-light);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-amber{background:var(--amber);color:#1F1B33}
.btn-amber:hover{background:#e79b41;color:#1F1B33;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-ghost{background:transparent;border-color:rgba(46,42,92,.35);color:var(--primary)}
.btn-ghost:hover{background:rgba(46,42,92,.06);color:var(--primary)}
.btn-light{background:#fff;color:var(--primary);box-shadow:var(--sh-1)}
.btn-light:hover{background:#fff;color:var(--primary-light);transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.btn .arw{display:inline-block;transition:transform .18s ease}
.btn:hover .arw{transform:translateX(4px)}

/* ---------- 分类页头部 ---------- */
.page-band{
  position:relative;overflow:hidden;color:#fff;
  padding:62px 0 54px;
  background:linear-gradient(118deg,rgba(23,20,48,.93) 0%,rgba(46,42,92,.86) 62%,rgba(62,142,138,.72) 100%),
             url('/assets/images/backpic/back-2.png') center/cover no-repeat;
}
.page-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.08) 1px,transparent 1px);
  background-size:26px 26px;opacity:.6;
}
.page-band .container{position:relative;z-index:1}
.breadcrumb{margin-bottom:22px}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.66)}
.breadcrumb li + li::before{content:"/";margin-right:8px;color:rgba(255,255,255,.4)}
.breadcrumb a{color:rgba(255,255,255,.85)}
.breadcrumb a:hover{color:var(--amber)}
.breadcrumb span{color:rgba(255,255,255,.72)}
.page-band h1{
  font-size:clamp(28px,4.2vw,46px);line-height:1.25;color:#fff;max-width:860px;margin-top:18px;
}
.band-lead{max-width:660px;margin-top:18px;font-size:17px;line-height:1.85;color:rgba(255,255,255,.82)}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}
.chip{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.28);color:rgba(255,255,255,.9);font-size:13.5px;
  transition:background .18s ease,border-color .18s ease,color .18s ease;
}
.chip:hover{background:rgba(255,255,255,.14);color:#fff}
.chip.is-on{background:var(--amber);border-color:var(--amber);color:#1F1B33;font-weight:500}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section-alt{background:var(--bg-alt)}
.section-head{max-width:740px;margin-bottom:42px}
.section-head h2{font-size:clamp(22px,3vw,34px)}
.section-lead{margin-top:16px;font-size:16.5px;color:var(--text-2);line-height:1.85}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:var(--r-pill);
  font-size:12px;letter-spacing:.02em;background:rgba(62,142,138,.13);color:#2B6763;
}
.badge-amber{background:rgba(222,143,51,.16);color:#9E5F14}
.badge-plain{background:rgba(46,42,92,.08);color:var(--primary)}

/* ---------- 指标看板 ---------- */
.metrics{
  background:var(--primary-dark);color:#fff;padding:52px 0;
  background-image:radial-gradient(rgba(255,255,255,.07) 1px,transparent 1px);
  background-size:24px 24px;
}
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.metric{padding:6px 26px;border-left:1px solid rgba(255,255,255,.12)}
.metric:first-child{border-left:0;padding-left:0}
.metric-num{font-family:var(--serif);font-size:clamp(32px,4vw,46px);line-height:1.1;color:#fff;font-variant-numeric:tabular-nums}
.metric-unit{font-size:14.5px;color:var(--amber);margin-left:6px;font-family:var(--sans)}
.metric-desc{margin-top:10px;font-size:13.5px;line-height:1.7;color:rgba(255,255,255,.7)}

/* ---------- 能力网格 ---------- */
.cap-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.cap-card{
  display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;
  transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.cap-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:rgba(46,42,92,.3)}
.cap-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,var(--primary),var(--amber))}
.cap-thumb img{width:100%;height:100%;object-fit:cover}
.cap-body{display:flex;flex-direction:column;gap:14px;flex:1;padding:22px}
.cap-title{font-size:19px;line-height:1.4}
.cap-desc{font-size:14.8px;line-height:1.75;color:var(--text-2)}
.cap-meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;padding-top:16px;border-top:1px solid var(--line-soft);
  font-size:12.8px;color:var(--text-2);
}
.cap-more{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;font-weight:500;color:var(--primary)}
.cap-more .arw{transition:transform .18s ease}
.cap-card:hover .cap-more .arw{transform:translateX(4px)}

/* ---------- 交付流程 ---------- */
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.flow-step{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 22px;box-shadow:var(--sh-1);transition:box-shadow .2s ease,transform .2s ease;
}
.flow-step:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.flow-num{
  display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:var(--r-pill);
  background:var(--primary-dark);color:#fff;font-family:var(--serif);font-size:15px;font-variant-numeric:tabular-nums;
}
.flow-step h3{margin-top:18px;font-size:17.5px;line-height:1.45}
.flow-step p{margin-top:10px;font-size:14.6px;line-height:1.8;color:var(--text-2)}

/* ---------- 适用场景 ---------- */
.scene-wrap{display:grid;grid-template-columns:1.05fr 1fr;gap:52px;align-items:center}
.scene-list li{
  display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line-soft);
  font-size:15.5px;line-height:1.8;
}
.scene-list li:first-child{padding-top:0}
.scene-dot{
  flex:0 0 auto;width:22px;height:22px;margin-top:6px;border-radius:var(--r-pill);
  background:rgba(62,142,138,.14);color:#2B6763;display:inline-flex;align-items:center;justify-content:center;
  font-size:12px;font-family:var(--serif);
}
.scene-figure{position:relative;border-radius:16px;overflow:hidden;box-shadow:var(--sh-1);background:linear-gradient(135deg,var(--primary),var(--teal))}
.scene-figure img{width:100%;aspect-ratio:4/3;object-fit:cover}
.scene-note{
  position:absolute;left:20px;bottom:20px;right:20px;
  background:rgba(23,20,48,.82);color:#fff;border-radius:var(--r-img);padding:14px 16px;
  font-size:13.5px;line-height:1.7;
}
.scene-note strong{color:var(--amber);font-family:var(--serif);font-size:16px;font-variant-numeric:tabular-nums}

/* ---------- 对照 ---------- */
.compare{display:grid;grid-template-columns:1fr 44px 1fr;gap:28px;align-items:stretch}
.compare-col{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:28px 26px;box-shadow:var(--sh-1)}
.compare-col.is-good{border-color:rgba(46,42,92,.32);box-shadow:var(--sh-2)}
.compare-col h3{font-size:18px;display:flex;align-items:center;gap:10px}
.compare-col ul{margin-top:18px;display:grid;gap:14px}
.compare-col li{display:flex;gap:12px;font-size:14.8px;line-height:1.75;color:var(--text-2)}
.mark{flex:0 0 auto;width:20px;height:20px;margin-top:5px;border-radius:var(--r-pill);display:inline-flex;align-items:center;justify-content:center;font-size:12px;font-weight:600}
.mark-x{background:rgba(196,85,63,.12);color:var(--err)}
.mark-y{background:rgba(47,138,107,.14);color:var(--ok)}
.compare-mid{position:relative;width:1px;margin:0 auto;background:linear-gradient(180deg,transparent,var(--line),transparent)}
.compare-mid::after{
  content:"→";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:40px;height:40px;border-radius:var(--r-pill);background:var(--surface);border:1px solid var(--line);
  color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:15px;
}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:320px 1fr;gap:52px;align-items:start}
.faq-list{border-top:1px solid var(--line-soft)}
.faq-list details{border-bottom:1px solid var(--line-soft)}
.faq-list summary{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 0;font-size:17px;line-height:1.6;cursor:pointer;list-style:none;color:var(--text);
}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary::after{
  content:"+";flex:0 0 auto;width:26px;height:26px;border-radius:var(--r-pill);
  border:1px solid var(--line);color:var(--primary);display:inline-flex;align-items:center;justify-content:center;
  font-size:15px;line-height:1;transition:transform .18s ease,background .18s ease;
}
.faq-list details[open] summary::after{content:"−";background:rgba(46,42,92,.06)}
.faq-list details[open] summary{color:var(--primary)}
.faq-answer{padding:0 0 22px;font-size:15.4px;line-height:1.85;color:var(--text-2);border-top:1px solid var(--line-soft);padding-top:16px}

/* ---------- 转化条 ---------- */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  padding:36px 40px;border-radius:18px;color:#fff;
  background:linear-gradient(118deg,var(--primary-dark) 0%,var(--primary) 70%,var(--primary-light) 100%);
  box-shadow:var(--sh-2);position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.09) 1px,transparent 1px);background-size:24px 24px;
}
.cta-copy{position:relative;z-index:1}
.cta-copy h2{color:#fff;font-size:clamp(20px,2.4vw,28px)}
.cta-copy p{margin-top:12px;font-size:15px;color:rgba(255,255,255,.78);max-width:560px}
.cta-actions{position:relative;z-index:1;display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:0;padding:64px 0 0;color:#fff;background:var(--primary-dark);
  background-image:radial-gradient(rgba(255,255,255,.06) 1px,transparent 1px);background-size:24px 24px;
}
.footer-main{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:52px}
.site-footer .brand-text{color:#fff}
.footer-brand p{margin-top:18px;max-width:330px;font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.72)}
.footer-contact{margin-top:18px}
.footer-contact li{font-size:13.4px;line-height:1.95;color:rgba(255,255,255,.72)}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.footer-col li a{display:inline-block;font-size:14px;line-height:2.1;color:rgba(255,255,255,.72)}
.footer-col li a:hover{color:var(--amber)}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;
  padding:20px 0 26px;border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(23,20,48,.42);opacity:0;visibility:hidden;transition:opacity .24s ease,visibility .24s ease;z-index:70}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,360px);padding:20px;
  background:var(--surface);z-index:80;overflow-y:auto;
  transform:translateX(100%);transition:transform .26s ease;box-shadow:-8px 0 32px rgba(23,20,48,.14);
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-bottom:18px;border-bottom:1px solid var(--line-soft)}
.drawer-list{margin-top:14px;display:grid;gap:4px}
.drawer-list a{display:block;padding:13px 12px;border-radius:10px;font-size:15.5px;color:var(--text)}
.drawer-list a:hover{background:var(--bg)}
.drawer-list a.is-active{color:var(--primary);font-weight:500;background:rgba(46,42,92,.06)}
.drawer-group{margin-top:14px;border-top:1px solid var(--line-soft);padding-top:14px}
.drawer-group summary{
  display:flex;align-items:center;justify-content:space-between;cursor:pointer;list-style:none;
  font-size:14px;color:var(--text-2);padding:8px 0;
}
.drawer-group summary::-webkit-details-marker{display:none}
.drawer-group summary::after{content:"+";color:var(--primary)}
.drawer-group[open] summary::after{content:"−"}
.drawer-group ul{margin-top:6px;display:grid;gap:2px}
.drawer-group ul a{display:block;padding:10px 12px;font-size:14px;color:var(--text);border-radius:8px}
.drawer-group ul a:hover{background:var(--bg)}
.drawer-cta{width:100%;margin-top:24px}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{max-width:1140px}
  .cap-grid{grid-template-columns:repeat(2,1fr)}
  .flow-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .nav-main{display:none}
  .burger{display:inline-flex}
  .header-actions .btn{display:none}
  .mega-panel{display:none}
  .section{padding:64px 0}
  .metrics{padding:44px 0}
  .metrics-grid{grid-template-columns:repeat(2,1fr);gap:28px 0}
  .metric{padding:6px 22px}
  .metric:nth-child(odd){border-left:0;padding-left:0}
  .scene-wrap{grid-template-columns:1fr;gap:32px}
  .faq-wrap{grid-template-columns:1fr;gap:28px}
  .footer-main{grid-template-columns:1fr 1fr;gap:32px}
  .compare{grid-template-columns:1fr;gap:20px}
  .compare-mid{display:none}
}
@media (max-width:767px){
  body{font-size:16px}
  .section{padding:48px 0}
  .page-band{padding:44px 0 40px}
  .cap-grid,.flow-grid{grid-template-columns:1fr}
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px 24px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 100%}
  .footer-main{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
  .search-pop{width:min(84vw,320px)}
}
@media (max-width:520px){
  .container{padding:0 20px}
  .brand-text{font-size:17px}
  .band-lead{font-size:15.5px}
  .cap-body{padding:18px}
  .compare-col{padding:22px 18px}
}

/* roulang page: category2 */
/* ============ 设计变量 ============ */
:root{
  --ink:#262336;
  --ink-2:#6E6A7C;
  --ink-3:#8C8798;
  --line:#E6E2D8;
  --line-2:#ECE8DE;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --surface-2:#F1EEE7;
  --purple:#2E2A5C;
  --purple-deep:#171430;
  --purple-light:#4A4488;
  --amber:#DE8F33;
  --teal:#3E8E8A;
  --ok:#2F8A6B;
  --err:#C4553F;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(23,20,48,.06),0 8px 24px rgba(23,20,48,.05);
  --shadow-2:0 12px 32px rgba(23,20,48,.10);
  --shadow-3:0 18px 42px rgba(23,20,48,.14);
  --ease:cubic-bezier(.4,0,.2,1);
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --font-sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
/* ============ reset / base ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--ink);
  background:var(--bg);
  overflow-x:clip;
}
@media (min-width:1024px){body{font-size:17px}}
h1,h2,h3,h4,h5{font-family:var(--font-serif);font-weight:700;line-height:1.25;margin:0;color:var(--ink);letter-spacing:.005em}
p{margin:0 0 1.4em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:var(--purple);text-decoration:none;transition:color .18s var(--ease),opacity .18s var(--ease)}
a:hover{color:var(--purple-light)}
img{max-width:100%;display:block;border-radius:var(--radius-img)}
button{font-family:inherit;font-size:inherit;cursor:pointer}
input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
.num{font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:6px}
/* ============ 容器 ============ */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
@media (max-width:1439px){.container{max-width:1140px}}
@media (max-width:1023px){.container{padding:0 24px}}
@media (max-width:519px){.container{padding:0 20px}}
/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;
  border-radius:var(--radius-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--purple);color:#fff;box-shadow:0 1px 2px rgba(23,20,48,.10),0 8px 18px rgba(46,42,92,.18)}
.btn-primary:hover{background:var(--purple-light);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(0);box-shadow:0 1px 2px rgba(23,20,48,.12)}
.btn-amber{background:var(--amber);color:#fff;box-shadow:0 1px 2px rgba(23,20,48,.10),0 8px 18px rgba(222,143,51,.22)}
.btn-amber:hover{background:#e89b41;color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-amber:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--purple)}
.btn-ghost:hover{background:#fff;border-color:var(--purple-light);color:var(--purple);transform:translateY(-1px);box-shadow:var(--shadow-1)}
.btn-ghost-light{background:transparent;border-color:rgba(255,255,255,.42);color:#fff}
.btn-ghost-light:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--purple);font-weight:600;font-size:15px}
.btn-text .arw{transition:transform .2s var(--ease)}
.btn-text:hover .arw{transform:translateX(4px)}
/* ============ 徽章 / chips ============ */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 11px;
  border-radius:var(--radius-pill);font-size:12px;font-weight:600;letter-spacing:.02em;
}
.badge-teal{background:rgba(62,142,138,.12);color:#2F6F6B}
.badge-purple{background:rgba(46,42,92,.10);color:var(--purple)}
.badge-amber{background:rgba(222,143,51,.14);color:#A9651A}
.chip-row{display:flex;flex-wrap:wrap;gap:10px}
.chip{
  display:inline-flex;align-items:center;min-height:34px;padding:0 15px;
  border-radius:var(--radius-pill);border:1px solid rgba(255,255,255,.30);
  background:rgba(255,255,255,.10);color:#fff;font-size:13.5px;font-weight:500;
  transition:background-color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
  cursor:pointer;
}
.chip:hover{background:rgba(255,255,255,.20);border-color:rgba(255,255,255,.55);transform:translateY(-1px)}
.chip.is-on{background:var(--amber);border-color:var(--amber);color:#fff}
.chip-light{background:#fff;border-color:var(--line);color:var(--ink-2)}
.chip-light:hover{background:#fff;border-color:var(--purple-light);color:var(--purple)}
.chip-light.is-on{background:var(--purple);border-color:var(--purple);color:#fff}
/* ============ 页头 / 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;background:#fff;
  border-bottom:1px solid transparent;
  transition:box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 2px 14px rgba(23,20,48,.07);border-bottom-color:var(--line-2)}
.header-inner{display:flex;align-items:center;gap:20px;height:72px;transition:height .22s var(--ease)}
.site-header.is-scrolled .header-inner{height:60px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none}
.brand-mark{display:inline-flex;width:30px;height:30px}
.brand-mark svg{width:100%;height:100%}
.brand-text{font-family:var(--font-serif);font-size:19px;font-weight:700;color:var(--purple);letter-spacing:.02em;white-space:nowrap}
.nav-main{margin-left:6px}
.nav-list{display:flex;align-items:center;gap:2px}
.nav-item{position:relative}
.nav-item > a{
  position:relative;display:inline-flex;align-items:center;height:44px;padding:0 14px;
  font-size:15px;font-weight:500;color:var(--ink);border-radius:8px;
  transition:color .18s var(--ease);
}
.nav-item > a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:5px;height:2px;
  background:var(--amber);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .22s var(--ease);
}
.nav-item:hover > a{color:var(--purple)}
.nav-item:hover > a::after,.nav-item.is-active > a::after{transform:scaleX(1)}
.nav-item.is-active > a{color:var(--purple);font-weight:600}
/* Mega 面板 */
.mega-panel{
  position:absolute;top:calc(100% + 12px);left:50%;
  width:760px;max-width:min(760px,calc(100vw - 64px));
  transform:translate(-50%,6px);
  background:#fff;border:1px solid var(--line);border-radius:14px;
  box-shadow:var(--shadow-3);padding:24px;
  display:grid;grid-template-columns:1.05fr 1fr;gap:24px;
  opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity .14s var(--ease),transform .14s var(--ease),visibility .14s var(--ease);
}
.nav-item.has-mega:hover .mega-panel,
.nav-item.has-mega:focus-within .mega-panel{opacity:1;visibility:visible;pointer-events:auto;transform:translate(-50%,0)}
.mega-col-title{
  font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--ink-2);
  padding-bottom:10px;margin-bottom:12px;border-bottom:1px solid var(--line-2);
}
.mega-links li + li{margin-top:2px}
.mega-links a{display:block;padding:9px 10px;border-radius:10px;transition:background-color .18s var(--ease)}
.mega-links a:hover{background:var(--bg)}
.mega-link-title{display:block;font-size:14.5px;font-weight:600;color:var(--ink)}
.mega-link-desc{display:block;font-size:12.5px;color:var(--ink-2);line-height:1.6;margin-top:2px}
.mega-cards{display:flex;flex-direction:column;gap:10px}
.mega-card{display:flex;gap:12px;align-items:flex-start;padding:10px;border:1px solid var(--line-2);border-radius:12px;background:#fff;transition:border-color .18s var(--ease),box-shadow .18s var(--ease),transform .18s var(--ease)}
.mega-card:hover{border-color:rgba(46,42,92,.30);box-shadow:var(--shadow-1);transform:translateY(-1px)}
.mega-card img{width:76px;height:60px;object-fit:cover;flex:none;border-radius:8px}
.mega-card-title{display:block;font-size:13.5px;font-weight:600;color:var(--ink);line-height:1.55;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.mega-card-meta{display:block;font-size:12px;color:var(--ink-2);margin-top:4px}
/* 头部右侧动作 */
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px;flex:none}
.icon-btn{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line);border-radius:var(--radius-btn);color:var(--ink);
  transition:background-color .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
}
.icon-btn:hover{background:var(--bg);border-color:var(--purple-light);color:var(--purple)}
.icon-btn svg{width:19px;height:19px}
.nav-toggle{display:none}
/* 搜索浮层 */
.search-pop{
  position:absolute;right:32px;top:calc(100% + 10px);width:340px;
  background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow-3);
  padding:16px;opacity:0;visibility:hidden;transform:translateY(6px);pointer-events:none;
  transition:opacity .16s var(--ease),transform .16s var(--ease),visibility .16s var(--ease);
}
.search-pop.is-open{opacity:1;visibility:visible;transform:translateY(0);pointer-events:auto}
.search-pop label{display:block;font-size:12.5px;font-weight:600;color:var(--ink-2);margin-bottom:8px}
.search-field{display:flex;gap:8px}
.search-field input{
  flex:1;min-height:46px;padding:0 14px;border:1px solid var(--line);border-radius:var(--radius-btn);background:#fff;
}
.search-field input:focus{outline:none;border-color:var(--purple);box-shadow:0 0 0 3px rgba(46,42,92,.15)}
.search-hint{font-size:12.5px;color:var(--ink-3);margin-top:10px;line-height:1.7}
/* ============ 移动端抽屉 ============ */
.mobile-drawer{
  position:fixed;inset:0 0 0 auto;width:min(400px,88vw);z-index:120;
  background:#fff;box-shadow:-14px 0 40px rgba(23,20,48,.18);
  transform:translateX(102%);transition:transform .26s var(--ease);
  display:flex;flex-direction:column;
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-mask{
  position:fixed;inset:0;background:rgba(23,20,48,.45);z-index:110;
  opacity:0;visibility:hidden;transition:opacity .26s var(--ease),visibility .26s var(--ease);
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer-top{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--line-2)}
.drawer-body{flex:1;overflow-y:auto;padding:12px 12px 20px}
.drawer-link,.drawer-group > button{
  display:flex;align-items:center;justify-content:space-between;width:100%;
  min-height:50px;padding:0 14px;border-radius:10px;background:transparent;border:0;
  font-size:15.5px;font-weight:600;color:var(--ink);text-align:left;
  transition:background-color .18s var(--ease),color .18s var(--ease);
}
.drawer-link:hover,.drawer-group > button:hover{background:var(--bg);color:var(--purple)}
.drawer-link.is-active{color:var(--purple)}
.drawer-sub{max-height:0;overflow:hidden;transition:max-height .28s var(--ease)}
.drawer-group.is-open .drawer-sub{max-height:340px}
.drawer-group > button .chev{transition:transform .24s var(--ease)}
.drawer-group.is-open > button .chev{transform:rotate(180deg)}
.drawer-sub a{display:block;padding:10px 14px 10px 28px;font-size:14px;color:var(--ink-2);border-radius:8px}
.drawer-sub a:hover{background:var(--bg);color:var(--purple)}
.drawer-foot{padding:16px 20px;border-top:1px solid var(--line-2)}
.no-scroll{overflow:hidden}
/* ============ 页头横幅 ============ */
.page-band{
  position:relative;overflow:hidden;color:#fff;
  background-image:linear-gradient(102deg,rgba(23,20,48,.94) 0%,rgba(46,42,92,.86) 58%,rgba(46,42,92,.68) 100%),url(/assets/images/backpic/back-2.png);
  background-size:cover;background-position:center;
}
.page-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.10) 1px,transparent 1px);
  background-size:34px 34px;opacity:.55;
}
.page-band-inner{position:relative;z-index:2;padding:56px 0 54px;min-height:300px;display:flex;flex-direction:column;justify-content:center}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:18px}
.breadcrumb a{color:rgba(255,255,255,.72)}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{color:rgba(255,255,255,.42)}
.breadcrumb .cur{color:#fff;font-weight:600}
.page-band h1{color:#fff;font-size:clamp(28px,4.2vw,46px);max-width:720px;margin-bottom:16px}
.page-band-sub{max-width:620px;font-size:16px;line-height:1.85;color:rgba(255,255,255,.80);margin-bottom:26px}
.page-band .chip-row{max-width:760px}
/* ============ 通用板块 ============ */
.section{padding:88px 0}
.section-tight{padding:64px 0}
.section-alt{background:var(--surface-2)}
.section-white{background:#fff}
.sec-head{max-width:760px;margin-bottom:44px}
.sec-head h2{font-size:clamp(22px,3vw,34px);margin-bottom:14px}
.sec-head p{color:var(--ink-2);font-size:16px;line-height:1.85;margin:0}
.sec-eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;
  letter-spacing:.16em;color:var(--teal);text-transform:uppercase;margin-bottom:14px;
}
.sec-eyebrow::before{content:"";width:22px;height:2px;background:var(--amber);border-radius:2px}
/* ============ 方案模块：侧栏 + 两列大卡 ============ */
.plan-layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:36px;align-items:start;margin-top:8px}
.plan-aside{position:sticky;top:96px}
.aside-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);padding:22px 20px}
.aside-card + .aside-card{margin-top:18px}
.aside-card h3{font-size:15px;margin-bottom:14px}
.aside-nav li + li{margin-top:2px}
.aside-nav a{
  display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:9px;
  font-size:14.5px;color:var(--ink-2);font-weight:500;
  transition:background-color .18s var(--ease),color .18s var(--ease),padding-left .18s var(--ease);
}
.aside-nav a::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--line);flex:none;transition:background-color .18s var(--ease)}
.aside-nav a:hover{background:var(--bg);color:var(--purple);padding-left:14px}
.aside-nav a:hover::before{background:var(--amber)}
.aside-note{font-size:13.5px;line-height:1.8;color:var(--ink-2);margin-bottom:16px}
.aside-meta{display:flex;justify-content:space-between;font-size:13px;color:var(--ink-2);padding:9px 0;border-top:1px solid var(--line-2)}
.aside-meta strong{color:var(--purple);font-variant-numeric:tabular-nums;font-weight:700}
.plan-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.plan-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-1);overflow:hidden;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.plan-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(46,42,92,.28)}
.plan-media{display:block;position:relative;overflow:hidden;background:linear-gradient(135deg,var(--purple) 0%,var(--purple-light) 100%)}
.plan-media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;transition:transform .35s var(--ease)}
.plan-card:hover .plan-media img{transform:scale(1.03)}
.plan-body{padding:22px 22px 20px;display:flex;flex-direction:column;flex:1}
.plan-body .badge{align-self:flex-start;margin-bottom:12px}
.plan-body h3{font-size:clamp(18px,2vw,21px);line-height:1.45;margin-bottom:10px}
.plan-body h3 a{color:var(--ink)}
.plan-body h3 a:hover{color:var(--purple)}
.plan-body > p{
  font-size:14.5px;line-height:1.75;color:var(--ink-2);margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.plan-points{margin-bottom:18px}
.plan-points li{position:relative;padding-left:18px;font-size:14px;line-height:1.75;color:var(--ink-2)}
.plan-points li + li{margin-top:6px}
.plan-points li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:2px;border-radius:2px;background:var(--teal)}
.plan-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line-2);
  display:flex;align-items:center;justify-content:space-between;font-size:13.5px;color:var(--ink-2);
}
.plan-foot .arw{color:var(--amber);font-weight:700;transition:transform .2s var(--ease)}
.plan-card:hover .plan-foot .arw{transform:translateX(4px)}
/* ============ 适用场景 ============ */
.scene-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.scene-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);padding:24px 22px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(46,42,92,.28)}
.scene-ico{
  width:44px;height:44px;border-radius:12px;background:rgba(46,42,92,.08);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.scene-ico svg{width:22px;height:22px}
.scene-card h3{font-size:18px;margin-bottom:10px}
.scene-card p{font-size:14px;line-height:1.75;color:var(--ink-2);margin:0}
/* ============ 实施流程 ============ */
.flow-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;counter-reset:step}
.flow-item{position:relative;padding-top:26px}
.flow-item::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:var(--line)}
.flow-item::after{
  content:"";position:absolute;top:-3px;left:0;width:46px;height:7px;border-radius:4px;background:var(--amber);opacity:.85;
}
.flow-no{
  display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:10px;
  background:var(--purple);color:#fff;font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;margin-bottom:14px;
}
.flow-item h3{font-size:18px;margin-bottom:10px}
.flow-item p{font-size:14px;line-height:1.78;color:var(--ink-2);margin:0}
/* ============ 效果对照 ============ */
.compare-wrap{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:0;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);overflow:hidden}
.compare-col{padding:30px 28px}
.compare-col + .compare-col{border-left:1px dashed var(--line)}
.compare-col h3{font-size:18px;margin-bottom:18px;display:flex;align-items:center;gap:10px}
.dot-mark{width:10px;height:10px;border-radius:50%;flex:none}
.dot-grey{background:#B9B4C2}
.dot-purple{background:var(--teal)}
.compare-list li{position:relative;padding-left:30px;font-size:14.5px;line-height:1.8;color:var(--ink-2)}
.compare-list li + li{margin-top:12px}
.compare-list li .mark{position:absolute;left:0;top:2px;width:19px;height:19px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;line-height:1}
.mark-no{background:rgba(196,85,63,.12);color:var(--err)}
.mark-yes{background:rgba(47,138,107,.14);color:var(--ok)}
.compare-mid{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:46px;height:46px;border-radius:50%;background:#fff;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-1);color:var(--amber);z-index:3;
}
.compare-mid svg{width:20px;height:20px}
.bar-block{margin-top:36px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);padding:28px}
.bar-row + .bar-row{margin-top:22px}
.bar-head{display:flex;justify-content:space-between;align-items:baseline;font-size:14px;color:var(--ink-2);margin-bottom:10px}
.bar-head strong{font-family:var(--font-serif);font-size:22px;color:var(--purple);font-variant-numeric:tabular-nums}
.bar-track{height:10px;border-radius:6px;background:var(--surface-2);overflow:hidden}
.bar-fill{height:100%;border-radius:6px;background:linear-gradient(90deg,var(--purple) 0%,var(--purple-light) 100%)}
.bar-fill.amber{background:linear-gradient(90deg,var(--amber) 0%,#E9A85E 100%)}
.bar-foot{font-size:12.5px;color:var(--ink-3);margin-top:8px}
/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:minmax(0,300px) minmax(0,1fr);gap:40px;align-items:start}
.faq-side h2{font-size:clamp(22px,3vw,32px);margin-bottom:14px}
.faq-side p{color:var(--ink-2);font-size:15px;line-height:1.85}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:flex-start;justify-content:space-between;gap:20px;
  padding:20px 0;font-size:18px;font-weight:600;color:var(--ink);line-height:1.6;
  font-family:var(--font-serif);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .sign{
  flex:none;width:26px;height:26px;border-radius:50%;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;position:relative;margin-top:2px;
  transition:background-color .2s var(--ease),border-color .2s var(--ease);
}
.faq-item summary .sign::before,
.faq-item summary .sign::after{content:"";position:absolute;background:var(--purple);border-radius:2px;transition:transform .2s var(--ease),background-color .2s var(--ease)}
.faq-item summary .sign::before{width:11px;height:1.6px}
.faq-item summary .sign::after{width:1.6px;height:11px}
.faq-item[open] summary .sign{background:var(--purple);border-color:var(--purple)}
.faq-item[open] summary .sign::before,
.faq-item[open] summary .sign::after{background:#fff}
.faq-item[open] summary .sign::after{transform:scaleY(0)}
.faq-item summary:hover{color:var(--purple)}
.faq-answer{padding:0 60px 22px 0;border-top:1px solid var(--line-2);padding-top:16px}
.faq-answer p{font-size:15px;line-height:1.85;color:var(--ink-2);margin:0}
/* ============ CTA 条 ============ */
.cta-band{
  position:relative;overflow:hidden;color:#fff;
  background:linear-gradient(100deg,var(--purple-deep) 0%,var(--purple) 70%,#3A3470 100%);
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.09) 1px,transparent 1px);
  background-size:30px 30px;opacity:.6;
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;padding:44px 0;flex-wrap:wrap}
.cta-inner h2{color:#fff;font-size:clamp(20px,2.6vw,28px);margin-bottom:8px}
.cta-inner p{color:rgba(255,255,255,.76);font-size:15px;margin:0}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
/* ============ 页脚 ============ */
.site-footer{
  position:relative;overflow:hidden;background:var(--purple-deep);color:#fff;padding-top:68px;
}
.site-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.08) 1px,transparent 1px);
  background-size:36px 36px;opacity:.7;
}
.footer-main{position:relative;z-index:2;display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:52px}
.footer-brand .brand-text{color:#fff}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.72);margin:18px 0 16px;max-width:340px}
.footer-contact li{font-size:13.5px;color:rgba(255,255,255,.72);line-height:1.9}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.02em}
.footer-col li + li{margin-top:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.72)}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  position:relative;z-index:2;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 32px 26px;border-top:1px solid rgba(255,255,255,.14);
  font-size:13px;color:rgba(255,255,255,.72);
}
@media (max-width:1023px){.footer-bottom{padding:20px 24px 26px}}
@media (max-width:519px){.footer-bottom{padding:20px 20px 26px}}
/* ============ 响应式 ============ */
@media (max-width:1199px){
  .plan-layout{grid-template-columns:210px minmax(0,1fr);gap:26px}
  .scene-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .flow-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
  .footer-main{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
}
@media (max-width:1023px){
  .nav-main{display:none}
  .nav-toggle{display:inline-flex}
  .header-actions .btn-primary{display:none}
  .section{padding:64px 0}
  .section-tight{padding:52px 0}
  .page-band-inner{padding:48px 0 46px;min-height:280px}
  .plan-layout{grid-template-columns:minmax(0,1fr)}
  .plan-aside{position:static}
  .aside-card{display:none}
  .aside-card.aside-visible{display:block}
  .faq-grid{grid-template-columns:minmax(0,1fr);gap:24px}
  .footer-main{grid-template-columns:1fr 1fr;gap:32px}
  .footer-brand{grid-column:1/-1}
}
@media (max-width:767px){
  .section{padding:48px 0}
  .section-tight{padding:44px 0}
  .plan-grid{grid-template-columns:minmax(0,1fr)}
  .scene-grid{grid-template-columns:minmax(0,1fr)}
  .flow-grid{grid-template-columns:minmax(0,1fr);gap:24px}
  .compare-wrap{grid-template-columns:minmax(0,1fr)}
  .compare-col + .compare-col{border-left:0;border-top:1px dashed var(--line)}
  .compare-mid{left:auto;right:20px;top:50%;transform:translateY(-50%) rotate(90deg)}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:38px 0}
  .footer-main{grid-template-columns:1fr;gap:28px}
}
@media (max-width:519px){
  body{font-size:16px}
  .header-inner{height:64px;gap:12px}
  .brand-text{font-size:17px}
  .page-band h1{font-size:clamp(26px,7vw,34px)}
  .page-band-sub{font-size:15px}
  .plan-body{padding:18px 18px 16px}
  .bar-block{padding:22px 18px}
  .search-pop{right:16px;width:calc(100vw - 32px)}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
}