/* roulang page: index */
:root{
  --ink-purple:#171225;
  --ink-purple-2:#1E1830;
  --jade:#2E9E8F;
  --jade-deep:#237A6F;
  --amber:#D9823B;
  --moon:#F7F5F1;
  --cloud:#EFEBE3;
  --white:#FFFFFF;
  --text:#1E1B26;
  --text-weak:#6E6878;
  --line:#DED8CE;
  --error:#C24A3A;
  --success:#2E9E8F;
  --radius-card:16px;
  --radius-img:14px;
  --radius-btn:12px;
  --radius-input:10px;
  --shadow:0 12px 32px rgba(20,16,31,.08);
  --shadow-hover:0 18px 44px rgba(20,16,31,.14);
  --container:1200px;
  --nav-h:68px;
  --font-title:'Noto Serif SC','Songti SC',serif;
  --font-body:'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background:var(--moon);
  padding-bottom:0;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--jade);text-decoration:none;transition:color .2s ease,text-decoration-color .2s ease;}
a:hover{color:var(--jade-deep);text-decoration:underline;text-underline-offset:4px;}
button{font-family:inherit;font-size:inherit;color:inherit;border:0;background:none;cursor:pointer;}
input,select,textarea{font-family:inherit;font-size:16px;color:var(--text);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-family:var(--font-title);font-weight:700;letter-spacing:.015em;line-height:1.3;color:var(--text);}
p{margin:0;}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px;border-radius:4px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

/* ============ 顶部信息条 ============ */
.topbar{
  background:var(--ink-purple);
  color:#CFC9DA;
  font-size:12px;
  line-height:34px;
  height:34px;
}
.topbar .container{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.topbar-left{display:flex;align-items:center;gap:10px;min-width:0;}
.topbar-domain{color:#F1EDF7;letter-spacing:.02em;white-space:nowrap;}
.topbar-sep{width:1px;height:12px;background:rgba(255,255,255,.24);display:inline-block;}
.topbar-note{color:#A79FBA;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar-right{display:flex;align-items:center;gap:18px;}
.topbar-right a{color:#CFC9DA;font-size:12px;}
.topbar-right a:hover{color:var(--jade);text-decoration:none;}

/* ============ 主导航 ============ */
.site-header{position:sticky;top:0;z-index:80;}
.mainnav{
  background:var(--moon);
  border-bottom:1px solid var(--line);
  height:var(--nav-h);
  transition:height .25s ease,box-shadow .25s ease,background .25s ease;
}
.mainnav .container{height:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;}
.site-header.is-scrolled .mainnav{
  height:60px;
  box-shadow:0 6px 20px rgba(20,16,31,.08);
  background:rgba(247,245,241,.97);
}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink-purple);flex:0 0 auto;}
.brand:hover{text-decoration:none;color:var(--ink-purple);}
.brand-star{width:22px;height:22px;flex:0 0 auto;color:var(--jade);}
.brand-name{
  font-family:var(--font-title);font-weight:700;font-size:22px;line-height:1.1;
  letter-spacing:.02em;white-space:nowrap;
}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:auto;}
.nav-links a{
  position:relative;font-size:15px;font-weight:500;color:var(--text);padding:6px 0;
  transition:color .2s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;background:var(--jade);
  transform:scaleX(0);transform-origin:left center;transition:transform .22s ease;
}
.nav-links a:hover{color:var(--jade-deep);text-decoration:none;}
.nav-links a:hover::after,.nav-links a.is-active::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--ink-purple);font-weight:700;}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 18px;
  background:var(--jade);color:var(--white);border-radius:var(--radius-btn);
  font-size:14px;font-weight:500;white-space:nowrap;border:1px solid var(--jade);
  transition:background .2s ease,transform .2s ease,border-color .2s ease;
}
.nav-cta:hover{background:var(--jade-deep);border-color:var(--jade-deep);color:var(--white);text-decoration:none;transform:translateY(-1px);}
.nav-cta:active{transform:translateY(0);}
.nav-cta svg{width:15px;height:15px;}
.burger{
  display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  align-items:center;justify-content:center;background:var(--white);
}
.burger span{display:block;width:18px;height:2px;background:var(--ink-purple);position:relative;transition:background .2s ease;}
.burger span::before,.burger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink-purple);transition:transform .22s ease;
}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(20,16,31,.5);opacity:0;visibility:hidden;
  transition:opacity .26s ease,visibility .26s ease;z-index:120;
}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:82%;max-width:360px;background:var(--moon);
  z-index:130;transform:translateX(100%);transition:transform .28s ease;
  display:flex;flex-direction:column;padding:18px 20px 24px;overflow-y:auto;
}
body.drawer-open .drawer{transform:translateX(0);}
body.drawer-open .drawer-mask{opacity:1;visibility:visible;}
body.drawer-open{overflow:hidden;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line);}
.drawer-brand{display:flex;align-items:center;gap:8px;font-family:var(--font-title);font-weight:700;font-size:18px;color:var(--ink-purple);}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:var(--white);display:flex;align-items:center;justify-content:center;font-size:20px;color:var(--text-weak);}
.drawer-nav{display:flex;flex-direction:column;margin:12px 0 20px;}
.drawer-nav a{
  font-size:18px;font-weight:500;color:var(--text);height:56px;display:flex;align-items:center;
  border-bottom:1px solid var(--line);
}
.drawer-nav a.is-active{color:var(--jade-deep);font-weight:700;}
.drawer-nav a:hover{text-decoration:none;color:var(--jade-deep);}
.drawer-cta{display:flex;width:100%;justify-content:center;height:48px;align-items:center;background:var(--jade);color:#fff;border-radius:var(--radius-btn);font-weight:500;}
.drawer-cta:hover{background:var(--jade-deep);color:#fff;text-decoration:none;}
.drawer-meta{margin-top:auto;padding-top:20px;font-size:12px;color:var(--text-weak);line-height:1.9;}

/* ============ 锚点条 ============ */
.anchorbar-wrap{
  position:sticky;top:var(--nav-h);z-index:60;background:rgba(247,245,241,.94);
  border-bottom:1px solid var(--line);backdrop-filter:blur(4px);
}
.anchorbar{
  display:flex;align-items:center;gap:10px;height:48px;overflow-x:auto;scrollbar-width:none;
}
.anchorbar::-webkit-scrollbar{display:none;}
.anchorbar a{
  flex:0 0 auto;height:36px;padding:0 16px;display:inline-flex;align-items:center;
  border-radius:999px;border:1px solid var(--line);background:var(--white);
  font-size:14px;color:var(--text);white-space:nowrap;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.anchorbar a:hover{text-decoration:none;border-color:var(--jade);color:var(--jade-deep);}
.anchorbar a.is-active{background:var(--jade);border-color:var(--jade);color:#fff;}

/* ============ 通用板块 ============ */
.section{padding:96px 0;scroll-margin-top:calc(var(--nav-h) + 60px);}
.section--cloud{background:var(--cloud);}
.section--dark{background:var(--ink-purple);color:#E8E4F0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.section-title{font-size:34px;line-height:1.3;}
.section-title .mark{display:inline-block;width:5px;height:22px;background:var(--jade);border-radius:3px;margin-right:12px;vertical-align:middle;}
.section-sub{margin-top:12px;font-size:16px;color:var(--text-weak);max-width:640px;line-height:1.85;}
.section--dark .section-sub{color:#A79FBA;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:500;color:var(--jade-deep);white-space:nowrap;}
.text-link:hover{text-decoration:underline;text-underline-offset:4px;color:var(--jade);}
.text-link svg{width:15px;height:15px;transition:transform .2s ease;}
.text-link:hover svg{transform:translateX(3px);}
.section-foot{margin-top:36px;display:flex;justify-content:flex-start;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-btn);font-size:15px;font-weight:500;
  border:1px solid transparent;cursor:pointer;transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn:hover{text-decoration:none;transform:translateY(-1px);}
.btn:active{transform:translateY(0);}
.btn-primary{background:var(--jade);color:#fff;border-color:var(--jade);box-shadow:0 6px 16px rgba(46,158,143,.22);}
.btn-primary:hover{background:var(--jade-deep);border-color:var(--jade-deep);color:#fff;}
.btn-ghost{background:transparent;color:var(--ink-purple);border-color:var(--ink-purple);}
.btn-ghost:hover{background:var(--ink-purple);color:#fff;}
.btn-light{background:var(--white);color:var(--ink-purple);border-color:var(--line);}
.btn-light:hover{background:var(--cloud);color:var(--ink-purple);}
.btn-block{width:100%;}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;pointer-events:none;transform:none;}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(900px 420px at 88% -10%,rgba(46,158,143,.10),transparent 62%),
    radial-gradient(700px 360px at 8% 10%,rgba(217,130,59,.07),transparent 60%),
    var(--moon);
  padding:72px 0 84px;
}
.hero-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;align-items:center;}
.hero-copy{grid-column:span 7;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:500;
  color:var(--jade-deep);letter-spacing:.04em;
}
.eyebrow .dot{width:8px;height:8px;border-radius:50%;background:var(--jade);box-shadow:0 0 0 4px rgba(46,158,143,.14);}
.hero h1{
  margin:18px 0 0;font-size:52px;line-height:1.15;letter-spacing:.01em;color:var(--ink-purple);
}
.hero-sub{
  margin-top:20px;font-size:19px;line-height:1.8;color:var(--text-weak);max-width:560px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-facts{
  display:flex;flex-wrap:wrap;gap:28px;margin-top:36px;padding-top:24px;border-top:1px solid var(--line);
}
.hero-fact{display:flex;flex-direction:column;gap:2px;}
.hero-fact strong{font-size:15px;font-weight:700;color:var(--ink-purple);}
.hero-fact span{font-size:13px;color:var(--text-weak);}
.hero-visual{grid-column:span 5;position:relative;}
.hero-frame{
  position:relative;border-radius:18px;overflow:hidden;border:1px solid rgba(222,216,206,.85);
  box-shadow:var(--shadow);background:var(--ink-purple);aspect-ratio:4/3;
}
.hero-frame img{width:100%;height:100%;object-fit:cover;opacity:.92;}
.hero-frame::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(2px 2px at 18% 26%,rgba(255,255,255,.72),transparent 60%),
    radial-gradient(1.6px 1.6px at 62% 18%,rgba(255,255,255,.55),transparent 60%),
    radial-gradient(2px 2px at 78% 62%,rgba(255,255,255,.6),transparent 60%),
    radial-gradient(1.4px 1.4px at 34% 74%,rgba(255,255,255,.45),transparent 60%),
    linear-gradient(180deg,rgba(23,18,37,.05),rgba(23,18,37,.42));
  pointer-events:none;
}
.hero-frame-cap{
  position:absolute;left:16px;bottom:14px;z-index:2;font-size:12px;color:#EFEBF6;
  background:rgba(23,18,37,.6);border:1px solid rgba(255,255,255,.16);border-radius:999px;padding:5px 12px;
}

/* ============ 卖点 Bento ============ */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.bento-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow);display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.bento-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#D3CBBD;}
.bento-lg{grid-column:span 7;padding:32px;}
.bento-sm{grid-column:span 5;}
.bento-col{grid-column:span 5;display:grid;gap:24px;}
.bento-card h3{font-size:20px;margin-top:16px;line-height:1.5;}
.bento-card--feature h3{font-size:24px;margin-top:20px;}
.bento-card p{margin-top:10px;font-size:15px;line-height:1.85;color:var(--text-weak);max-width:34ch;}
.bento-link{margin-top:auto;padding-top:18px;}
.icon-line{width:44px;height:44px;border-radius:12px;background:rgba(46,158,143,.10);display:flex;align-items:center;justify-content:center;color:var(--jade-deep);}
.icon-line svg{width:24px;height:24px;stroke-width:1.5;fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;}
.bento-media{
  margin-top:22px;border-radius:var(--radius-img);overflow:hidden;aspect-ratio:16/9;background:var(--cloud);
}
.bento-media img{width:100%;height:100%;object-fit:cover;}

/* ============ 演示区 ============ */
.demo-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:32px;align-items:start;}
.demo-steps{grid-column:span 4;display:flex;flex-direction:column;gap:4px;}
.step{
  display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line);cursor:pointer;
  transition:background .2s ease;
}
.step:hover .step-title{color:var(--jade-deep);}
.step-no{
  flex:0 0 auto;width:30px;height:30px;border-radius:50%;border:1.5px solid var(--jade);
  display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;
  color:var(--jade-deep);background:var(--moon);
}
.step.is-active .step-no{background:var(--jade);color:#fff;border-color:var(--jade);}
.step-title{font-size:17px;font-weight:700;color:var(--ink-purple);transition:color .2s ease;}
.step-desc{font-size:14px;color:var(--text-weak);line-height:1.8;margin-top:4px;}
.demo-stage{grid-column:span 8;}
.demo-tabs{display:flex;gap:26px;border-bottom:1px solid var(--line);margin-bottom:20px;}
.demo-tab{
  position:relative;padding:8px 0 12px;font-size:15px;font-weight:500;color:var(--text-weak);
  transition:color .2s ease;
}
.demo-tab::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;background:var(--jade);
  transform:scaleX(0);transform-origin:left center;transition:transform .22s ease;
}
.demo-tab:hover{color:var(--ink-purple);}
.demo-tab.is-active{color:var(--ink-purple);font-weight:700;}
.demo-tab.is-active::after{transform:scaleX(1);}
.demo-panel{display:none;}
.demo-panel.is-active{display:block;}
.demo-figure{
  border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--line);background:var(--ink-purple);
  aspect-ratio:16/10;box-shadow:var(--shadow);
}
.demo-figure img{width:100%;height:100%;object-fit:cover;}
.demo-caption{margin-top:12px;font-size:13px;color:var(--text-weak);line-height:1.8;}

/* ============ 证据区 ============ */
.section--dark .section-title{color:#F3F0F9;}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-bottom:48px;}
.stat{padding:22px 0;border-top:1px solid rgba(255,255,255,.14);}
.stat-num{
  font-family:var(--font-title);font-size:44px;line-height:1.1;color:#F7F5F1;
  font-variant-numeric:tabular-nums;letter-spacing:.01em;
}
.stat-num small{font-size:16px;font-family:var(--font-body);color:#A79FBA;margin-left:6px;font-weight:400;}
.stat-label{margin-top:8px;font-size:14px;color:#A79FBA;}
.quotes{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-bottom:40px;}
.quote{
  background:rgba(247,245,241,.07);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius-card);
  padding:26px;
}
.quote p{font-family:var(--font-title);font-size:19px;line-height:1.75;color:#F1EEF8;}
.quote cite{display:block;margin-top:16px;font-style:normal;font-size:13px;color:#A79FBA;}
.badges{display:flex;flex-wrap:wrap;gap:14px;}
.badge-line{
  display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border-radius:999px;
  border:1px solid rgba(255,255,255,.22);font-size:13px;color:#D6D0E2;
}
.badge-line svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;color:var(--jade);}

/* ============ 方案条 ============ */
.plans{display:flex;flex-direction:column;gap:18px;}
.plan{
  position:relative;display:grid;grid-template-columns:1.1fr 1.5fr .9fr;gap:24px;align-items:center;
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 28px;box-shadow:var(--shadow);transition:box-shadow .22s ease,transform .22s ease;
}
.plan:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);}
.plan--reco{border-left:4px solid var(--jade);}
.plan-head h3{font-size:21px;line-height:1.4;}
.plan-audience{margin-top:6px;font-size:14px;color:var(--text-weak);}
.plan-badge{
  position:absolute;top:-1px;right:24px;transform:translateY(-50%);
  background:var(--jade);color:#fff;font-size:12px;padding:4px 12px;border-radius:999px;letter-spacing:.04em;
}
.plan-benefits{display:grid;grid-template-columns:1fr 1fr;gap:8px 20px;}
.plan-benefits li{display:flex;align-items:flex-start;gap:8px;font-size:14px;color:var(--text);line-height:1.7;}
.plan-benefits svg{width:16px;height:16px;flex:0 0 auto;margin-top:5px;stroke:var(--jade);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
.plan-action{display:flex;justify-content:flex-end;}
.plan-note{margin-top:18px;font-size:13px;color:var(--text-weak);}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:32px;align-items:start;}
.faq-side{grid-column:span 4;position:sticky;top:calc(var(--nav-h) + 72px);}
.faq-side h2{font-size:32px;line-height:1.3;}
.faq-side p{margin-top:14px;font-size:15px;color:var(--text-weak);line-height:1.85;}
.faq-card{
  margin-top:24px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px;box-shadow:var(--shadow);
}
.faq-card strong{display:block;font-size:16px;color:var(--ink-purple);}
.faq-card span{display:block;margin-top:6px;font-size:13px;color:var(--text-weak);line-height:1.8;}
.faq-card .text-link{margin-top:14px;}
.faq-list{grid-column:span 8;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:first-child{border-top:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;text-align:left;font-size:18px;font-weight:700;color:var(--ink-purple);
  line-height:1.6;transition:color .2s ease;
}
.faq-q:hover{color:var(--jade-deep);}
.faq-icon{
  flex:0 0 auto;position:relative;width:20px;height:20px;transition:transform .3s ease;color:var(--jade-deep);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:currentColor;border-radius:2px;
}
.faq-icon::before{left:0;top:9px;width:20px;height:2px;}
.faq-icon::after{left:9px;top:0;width:2px;height:20px;transition:transform .3s ease;}
.faq-item.is-open .faq-icon{transform:rotate(180deg);}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);}
.faq-a{overflow:hidden;max-height:0;transition:max-height .32s ease;}
.faq-a-inner{padding:0 44px 24px 0;font-size:16px;line-height:1.9;color:var(--text-weak);}
.faq-a-inner strong{color:var(--ink-purple);}

/* ============ 最新信息 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--shadow);
  transition:transform .22s ease,box-shadow .22s ease;color:inherit;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);text-decoration:none;color:inherit;}
.news-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--cloud);}
.news-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.news-card:hover .news-media img{transform:scale(1.03);}
.news-tag{
  position:absolute;left:12px;top:12px;background:rgba(23,18,37,.78);color:#F3F0F9;
  font-size:12px;padding:4px 10px;border-radius:999px;letter-spacing:.02em;
}
.news-body{padding:20px;display:flex;flex-direction:column;flex:1;}
.news-title{font-size:18px;line-height:1.55;font-family:var(--font-title);color:var(--ink-purple);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-desc{margin-top:10px;font-size:14px;line-height:1.8;color:var(--text-weak);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-foot{margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-weak);}
.news-foot svg{width:16px;height:16px;stroke:var(--jade-deep);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;transition:transform .2s ease;}
.news-card:hover .news-foot svg{transform:translateX(3px);}
.news-empty{
  grid-column:1/-1;min-height:240px;border:1px dashed #CFC7B8;border-radius:var(--radius-card);
  background:rgba(255,255,255,.6);display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:10px;text-align:center;padding:32px;
}
.news-empty svg{width:26px;height:26px;color:var(--jade);}
.news-empty strong{font-size:16px;color:var(--ink-purple);font-family:var(--font-title);}
.news-empty span{font-size:14px;color:var(--text-weak);}

/* ============ 咨询 CTA ============ */
.cta-band{background:var(--ink-purple);color:#E9E5F2;padding:88px 0;}
.cta-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:32px;align-items:start;}
.cta-copy{grid-column:span 5;}
.cta-copy h2{font-size:34px;line-height:1.3;color:#F5F2FA;}
.cta-copy p{margin-top:16px;font-size:16px;line-height:1.9;color:#B5ADC6;max-width:420px;}
.cta-contact{margin-top:26px;display:flex;flex-direction:column;gap:10px;font-size:14px;color:#D6D0E2;}
.cta-contact a{color:var(--jade);}
.cta-contact span strong{color:#F1EEF8;font-weight:500;}
.cta-form-card{
  grid-column:span 7;background:var(--moon);border-radius:18px;padding:28px;
  box-shadow:0 24px 60px rgba(10,7,20,.35);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.form-field{display:flex;flex-direction:column;gap:8px;margin-bottom:18px;}
.form-field label{font-size:14px;font-weight:500;color:var(--ink-purple);}
.form-field .req{color:var(--amber);}
.form-field input,.form-field select,.form-field textarea{
  height:44px;padding:0 14px;border:1px solid var(--line);border-radius:var(--radius-input);
  background:var(--white);transition:border-color .2s ease,box-shadow .2s ease;width:100%;
}
.form-field textarea{height:120px;padding:12px 14px;line-height:1.8;resize:vertical;}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{
  outline:none;border-color:var(--jade);box-shadow:0 0 0 3px rgba(46,158,143,.18);
}
.form-field.has-error input,.form-field.has-error select,.form-field.has-error textarea{
  border-color:var(--error);box-shadow:0 0 0 3px rgba(194,74,58,.12);
}
.form-hint{font-size:13px;color:var(--error);min-height:0;display:none;}
.form-field.has-error .form-hint{display:block;}
.form-note{font-size:13px;color:var(--text-weak);line-height:1.8;margin-top:12px;}
.form-status{margin-top:14px;font-size:14px;color:var(--success);font-weight:500;display:none;}
.form-status.is-visible{display:block;}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-purple);color:#B5ADC6;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:44px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#F3F0F9;}
.footer-brand .brand-star{color:var(--jade);}
.footer-brand-name{font-family:var(--font-title);font-weight:700;font-size:20px;letter-spacing:.02em;}
.footer-desc{margin-top:14px;font-size:14px;line-height:1.85;color:#9A93AC;max-width:280px;}
.footer-col h4{font-size:15px;color:#F3F0F9;font-family:var(--font-body);font-weight:700;margin-bottom:16px;letter-spacing:.02em;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a,.footer-col li{font-size:14px;color:#B5ADC6;line-height:1.7;}
.footer-col a:hover{color:var(--jade);text-decoration:none;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:18px 0;display:flex;align-items:center;
  justify-content:space-between;gap:16px;font-size:13px;color:#8E87A1;flex-wrap:wrap;
}
.footer-bottom a{color:#B5ADC6;}
.footer-bottom a:hover{color:var(--jade);text-decoration:none;}
.to-top{
  display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:999px;
  border:1px solid rgba(255,255,255,.2);color:#D6D0E2;font-size:13px;
}
.to-top:hover{border-color:var(--jade);color:var(--jade);text-decoration:none;}
.to-top svg{width:14px;height:14px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;right:24px;bottom:32px;z-index:70;
  display:inline-flex;align-items:center;gap:8px;height:48px;padding:0 22px;border-radius:999px;
  background:var(--jade);color:#fff;font-size:14px;font-weight:500;
  box-shadow:0 14px 34px rgba(35,122,111,.35);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .28s ease,transform .28s ease,visibility .28s ease,background .2s ease;
}
.float-cta:hover{background:var(--jade-deep);color:#fff;text-decoration:none;transform:translateY(-1px);}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.mobile-bar{display:none;}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  :root{--container:960px;}
  .hero h1{font-size:46px;}
  .nav-links{gap:20px;}
  .section{padding:80px 0;}
}
@media (max-width:991px){
  :root{--container:720px;--nav-h:64px;}
  .nav-links,.nav-cta{display:none;}
  .burger{display:flex;}
  .hero{padding:52px 0 64px;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-copy,.hero-visual{grid-column:span 12;}
  .hero h1{font-size:38px;}
  .hero-sub{font-size:17px;max-width:none;}
  .bento{grid-template-columns:repeat(6,1fr);}
  .bento-lg{grid-column:span 6;}
  .bento-sm,.bento-col{grid-column:span 6;}
  .demo-grid{grid-template-columns:1fr;gap:24px;}
  .demo-steps,.demo-stage{grid-column:span 12;}
  .stats{grid-template-columns:1fr 1fr;}
  .quotes{grid-template-columns:1fr;}
  .plan{grid-template-columns:1fr;gap:18px;padding:22px;}
  .plan-action{justify-content:flex-start;}
  .faq-grid{grid-template-columns:1fr;}
  .faq-side{grid-column:span 12;position:static;}
  .faq-list{grid-column:span 12;}
  .news-grid{grid-template-columns:1fr 1fr;}
  .cta-grid{grid-template-columns:1fr;}
  .cta-copy,.cta-form-card{grid-column:span 12;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .anchorbar-wrap{position:static;backdrop-filter:none;}
  .section{scroll-margin-top:80px;}
  .float-cta{right:16px;bottom:24px;}
}
@media (max-width:767px){
  :root{--container:100%;--nav-h:60px;}
  body{padding-bottom:72px;}
  .container{padding:0 20px;}
  .topbar-note{display:none;}
  .brand-name{font-size:20px;}
  .hero{padding:40px 0 52px;}
  .hero h1{font-size:34px;line-height:1.2;}
  .hero-sub{font-size:16px;}
  .hero-actions .btn{flex:1 1 100%;}
  .hero-facts{gap:18px 24px;}
  .section{padding:56px 0;}
  .section-title{font-size:26px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px;}
  .bento{grid-template-columns:1fr;}
  .bento-lg,.bento-sm,.bento-col{grid-column:span 1;}
  .bento-lg{padding:22px;}
  .bento-card{padding:20px;}
  .stats{grid-template-columns:1fr 1fr;gap:16px;}
  .stat-num{font-size:34px;}
  .news-grid{grid-template-columns:1fr;}
  .form-row{grid-template-columns:1fr;}
  .cta-band{padding:56px 0;}
  .cta-copy h2{font-size:27px;}
  .cta-form-card{padding:20px;}
  .plan-benefits{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:12px;}
  .float-cta{display:none;}
  .mobile-bar{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:75;height:56px;
    background:var(--white);border-top:1px solid var(--line);
    padding-bottom:env(safe-area-inset-bottom);
  }
  .mobile-bar a{
    display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:500;
  }
  .mobile-bar .bar-main{flex:0 0 60%;background:var(--jade);color:#fff;}
  .mobile-bar .bar-main:hover{background:var(--jade-deep);color:#fff;text-decoration:none;}
  .mobile-bar .bar-sub{flex:0 0 40%;color:var(--ink-purple);border-left:1px solid var(--line);}
  .mobile-bar .bar-sub:hover{color:var(--jade-deep);text-decoration:none;}
  .faq-q{font-size:17px;padding:18px 0;}
  .faq-a-inner{padding-right:28px;font-size:15px;}
  .drawer{width:86%;}
}
@media (max-width:479px){
  .hero h1{font-size:30px;}
  .section-title{font-size:24px;}
  .brand-name{font-size:18px;}
  .brand-star{width:19px;height:19px;}
  .topbar{font-size:11px;}
  .topbar-right{gap:12px;}
  .btn{height:46px;padding:0 18px;}
  .stat-num{font-size:30px;}
}

/* roulang page: article */
:root{
  --ink-purple:#171225;
  --ink-purple-2:#1E1830;
  --teal:#2E9E8F;
  --teal-dark:#237A6F;
  --orange:#D9823B;
  --moon:#F7F5F1;
  --cloud:#EFEBE3;
  --white:#FFFFFF;
  --text:#1E1B26;
  --muted:#6E6878;
  --line:#DED8CE;
  --error:#C24A3A;
  --success:#2E9E8F;
  --radius-card:16px;
  --radius-img:14px;
  --radius-btn:12px;
  --radius-input:10px;
  --shadow:0 12px 32px rgba(20,16,31,.08);
  --shadow-hover:0 18px 44px rgba(20,16,31,.14);
  --font-serif:"Noto Serif SC","Songti SC","STSong","SimSun",serif;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --container:1200px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background:var(--moon);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-img);}
a{color:var(--teal);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--teal-dark);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-family:var(--font-serif);color:var(--text);letter-spacing:.012em;font-weight:700;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--orange);outline-offset:3px;border-radius:4px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ---------- top bar ---------- */
.topbar{background:var(--ink-purple);color:#CFC9DC;height:34px;display:flex;align-items:center;font-size:12px;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;}
.topbar-left{display:flex;align-items:center;gap:10px;min-width:0;}
.topbar-domain{color:#F1EDE6;letter-spacing:.03em;font-variant-numeric:tabular-nums;}
.topbar-divider{width:1px;height:12px;background:rgba(255,255,255,.24);}
.topbar-note{color:#A9A2B8;white-space:nowrap;}
.topbar-right{display:flex;align-items:center;gap:18px;}
.topbar-right a{color:#CFC9DC;}
.topbar-right a:hover{color:var(--teal);}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,245,241,.96);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(20,16,31,.07);background:#FCFBF8;}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px;transition:height .25s ease;}
.site-header.is-scrolled .nav-inner{height:60px;}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink-purple);flex:0 0 auto;}
.brand:hover{color:var(--ink-purple);}
.brand-star{width:22px;height:22px;color:var(--teal);flex:0 0 auto;}
.brand-name{font-family:var(--font-serif);font-size:22px;font-weight:700;letter-spacing:.02em;white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:28px;margin-left:auto;}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--text);
  padding:6px 0;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--teal);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-link:hover{color:var(--teal-dark);}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--teal-dark);}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:500;line-height:1;border:1px solid transparent;
  cursor:pointer;transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--teal);color:#fff;}
.btn-primary:hover{background:var(--teal-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(46,158,143,.26);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:transparent;color:var(--ink-purple);border-color:var(--ink-purple);}
.btn-ghost:hover{background:var(--ink-purple);color:#fff;transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;
  background:var(--white);align-items:center;justify-content:center;cursor:pointer;padding:0;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink-purple);position:relative;transition:background .2s ease;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink-purple);transition:transform .2s ease;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* ---------- drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(20,16,31,.5);z-index:95;
  opacity:0;pointer-events:none;transition:opacity .28s ease;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:82%;max-width:360px;z-index:96;
  background:var(--moon);transform:translateX(102%);transition:transform .3s ease;
  display:flex;flex-direction:column;padding:20px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--line);}
.drawer-brand{display:flex;align-items:center;gap:8px;font-family:var(--font-serif);font-size:18px;font-weight:700;color:var(--ink-purple);}
.drawer-close{width:40px;height:40px;border:1px solid var(--line);border-radius:10px;background:var(--white);cursor:pointer;color:var(--ink-purple);font-size:20px;line-height:1;display:flex;align-items:center;justify-content:center;}
.drawer-nav{display:flex;flex-direction:column;padding:8px 0;}
.drawer-nav a{
  display:flex;align-items:center;height:56px;font-size:18px;color:var(--text);
  border-bottom:1px solid var(--line);
}
.drawer-nav a.is-active{color:var(--teal-dark);}
.drawer-cta{margin-top:20px;width:100%;}
.drawer-foot{margin-top:auto;padding-top:24px;font-size:12px;color:var(--muted);}

/* ---------- breadcrumb ---------- */
.crumb{background:var(--cloud);border-bottom:1px solid var(--line);}
.crumb-inner{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);padding:14px 0;flex-wrap:wrap;}
.crumb-inner a{color:var(--muted);}
.crumb-inner a:hover{color:var(--teal-dark);}
.crumb-sep{color:#B9B2A6;}
.crumb-current{color:var(--text);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- article head ---------- */
.article-head{padding:56px 0 40px;background:var(--moon);}
.article-head-inner{max-width:860px;}
.cat-badge{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;
  border-radius:999px;background:rgba(46,158,143,.1);color:var(--teal-dark);
  font-size:13px;font-weight:500;letter-spacing:.02em;
}
.article-title{
  margin-top:18px;font-size:38px;line-height:1.32;letter-spacing:.015em;color:var(--ink-purple);
}
.article-meta{
  margin-top:20px;display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;
}
.article-meta .dot{width:3px;height:3px;border-radius:50%;background:#B9B2A6;}
.article-cover{margin-top:36px;border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--line);background:var(--cloud);}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;}

/* ---------- body layout ---------- */
.article-section{padding:48px 0 88px;background:var(--moon);}
.article-layout{
  display:grid;grid-template-columns:minmax(0,800px) 220px;
  gap:56px;justify-content:center;align-items:start;
}
.article-main{min-width:0;}

.prose{font-size:17px;line-height:1.95;color:var(--text);}
.prose p{margin:0 0 1.2em;}
.prose h2{
  position:relative;font-size:28px;line-height:1.4;margin:2em 0 .8em;padding-left:16px;
}
.prose h2::before{
  content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:4px;border-radius:2px;background:var(--teal);
}
.prose h3{font-size:21px;line-height:1.55;margin:1.7em 0 .6em;color:var(--ink-purple);}
.prose h4{font-size:17px;margin:1.4em 0 .5em;font-family:var(--font-sans);font-weight:700;}
.prose a{color:var(--teal-dark);text-decoration:underline;text-underline-offset:4px;}
.prose a:hover{color:var(--teal);}
.prose strong{font-weight:700;color:var(--ink-purple);}
.prose ul,.prose ol{margin:0 0 1.2em;padding-left:1.3em;line-height:1.9;}
.prose ul{list-style:disc;}
.prose ol{list-style:decimal;}
.prose li{margin-bottom:.45em;}
.prose li::marker{color:var(--teal);}
.prose blockquote{
  margin:1.6em 0;padding:18px 22px;border-left:3px solid var(--teal);
  background:var(--white);border-radius:0 var(--radius-img) var(--radius-img) 0;color:#3A3446;
}
.prose blockquote p:last-child{margin-bottom:0;}
.prose img{margin:1.6em 0;border-radius:12px;}
.prose figure{margin:1.6em 0;}
.prose figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px;}
.prose table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;}
.prose th,.prose td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
.prose th{background:var(--cloud);font-weight:700;}
.prose hr{border:0;border-top:1px solid var(--line);margin:2.2em 0;}

/* ---------- empty state for article ---------- */
.empty-article{
  border:1px dashed #CFC7B9;border-radius:var(--radius-card);background:var(--white);
  padding:56px 32px;text-align:center;
}
.empty-article .empty-star{width:26px;height:26px;color:var(--teal);margin:0 auto 14px;}
.empty-article h2{font-size:24px;margin-bottom:10px;}
.empty-article p{color:var(--muted);font-size:15px;margin-bottom:22px;}

/* ---------- toc ---------- */
.toc{position:sticky;top:96px;font-size:14px;}
.toc-title{
  font-size:13px;letter-spacing:.14em;color:var(--muted);text-transform:uppercase;
  margin-bottom:14px;font-family:var(--font-sans);font-weight:700;
}
.toc-list{border-left:1px solid var(--line);display:flex;flex-direction:column;}
.toc-list a{
  display:block;padding:8px 0 8px 14px;margin-left:-1px;border-left:2px solid transparent;
  color:var(--muted);line-height:1.6;transition:color .2s ease,border-color .2s ease;
}
.toc-list a:hover{color:var(--teal-dark);}
.toc-list a.is-current{color:var(--teal-dark);border-left-color:var(--teal);font-weight:500;}

/* ---------- article foot ---------- */
.article-foot{margin-top:56px;padding-top:28px;border-top:1px solid var(--line);}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px;}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  background:var(--white);border:1px solid var(--line);font-size:13px;color:var(--muted);
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.tag:hover{border-color:var(--teal);color:var(--teal-dark);background:rgba(46,158,143,.06);}
.back-link{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:500;color:var(--teal-dark);}
.back-link svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.8;transition:transform .2s ease;}
.back-link:hover svg{transform:translateX(-3px);}

/* ---------- related ---------- */
.related{padding:0 0 88px;background:var(--moon);}
.related-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap;}
.related-head h2{font-size:30px;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:500;color:var(--teal-dark);}
.text-link svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:1.8;transition:transform .2s ease;}
.text-link:hover svg{transform:translateX(3px);}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap);}
.post-card{
  display:flex;flex-direction:column;background:var(--white);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow);
  transition:transform .25s ease,box-shadow .25s ease;
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.post-card .thumb{position:relative;overflow:hidden;background:var(--cloud);}
.post-card .thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;transition:transform .4s ease;}
.post-card:hover .thumb img{transform:scale(1.03);}
.post-card .thumb .badge{
  position:absolute;left:12px;top:12px;height:26px;padding:0 10px;border-radius:999px;
  background:rgba(23,18,37,.82);color:#F1EDE6;font-size:12px;display:inline-flex;align-items:center;
}
.post-card .body{padding:20px;display:flex;flex-direction:column;flex:1;}
.post-card h3{font-size:18px;line-height:1.55;margin-bottom:10px;}
.post-card h3 a{color:var(--ink-purple);}
.post-card h3 a:hover{color:var(--teal-dark);}
.post-card p{font-size:14px;line-height:1.75;color:var(--muted);margin-bottom:16px;}
.post-card .foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;}
.post-card .foot svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.8;transition:transform .2s ease;}
.post-card:hover .foot svg{transform:translateX(3px);}
.card-fallback{
  border:1px dashed #CFC7B9;border-radius:var(--radius-card);background:var(--white);
  padding:36px 28px;text-align:center;
}
.card-fallback h3{font-size:18px;margin-bottom:10px;}
.card-fallback p{font-size:14px;color:var(--muted);margin-bottom:18px;}

/* ---------- lite cta ---------- */
.cta-band{background:var(--ink-purple);color:#EDE9E2;padding:64px 0;position:relative;overflow:hidden;}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(46,158,143,.28) 0%,rgba(46,158,143,0) 70%);
  pointer-events:none;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;position:relative;z-index:1;flex-wrap:wrap;}
.cta-inner h2{font-size:28px;color:#F7F5F1;line-height:1.4;}
.cta-inner p{margin-top:10px;font-size:15px;line-height:1.8;color:#B7B0C4;max-width:520px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}
.btn-light{background:var(--teal);color:#fff;}
.btn-light:hover{background:var(--teal-dark);color:#fff;transform:translateY(-1px);}
.btn-outline-light{background:transparent;color:#EDE9E2;border-color:rgba(237,233,226,.4);}
.btn-outline-light:hover{background:#EDE9E2;color:var(--ink-purple);transform:translateY(-1px);}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-purple);color:#B7B0C4;padding:64px 0 0;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#F7F5F1;}
.brand-star{color:var(--teal);}
.footer-brand-name{font-family:var(--font-serif);font-size:20px;font-weight:700;letter-spacing:.02em;}
.footer-desc{margin-top:14px;line-height:1.85;max-width:280px;color:#A9A2B8;}
.footer-col h4{font-family:var(--font-sans);font-size:14px;color:#F7F5F1;margin-bottom:16px;letter-spacing:.04em;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{color:#B7B0C4;}
.footer-col a:hover{color:var(--teal);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:20px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12px;color:#8F889F;
}
.to-top{display:inline-flex;align-items:center;gap:6px;color:#B7B0C4;}
.to-top:hover{color:var(--teal);}
.to-top svg{width:14px;height:14px;stroke:currentColor;fill:none;stroke-width:1.8;}

/* ---------- floating cta ---------- */
.float-cta{
  position:fixed;right:24px;bottom:32px;z-index:70;height:48px;padding:0 22px;border-radius:999px;
  background:var(--teal);color:#fff;display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:500;box-shadow:0 14px 34px rgba(46,158,143,.32);
  opacity:0;transform:translateY(12px);pointer-events:none;
  transition:opacity .3s ease,transform .3s ease,background .2s ease;
}
.float-cta.is-visible{opacity:1;transform:translateY(0);pointer-events:auto;}
.float-cta:hover{background:var(--teal-dark);color:#fff;}
.float-cta svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2;}
.mobile-bar{display:none;}

@media (max-width:1199px){
  .container{padding:0 24px;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0;}
  .toc{display:none;}
}
@media (max-width:991px){
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-actions .btn-sm{display:none;}
  .article-title{font-size:32px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .float-cta{right:16px;bottom:24px;}
}
@media (max-width:767px){
  body{padding-bottom:72px;}
  .topbar-note{display:none;}
  .topbar-divider{display:none;}
  .article-head{padding:36px 0 28px;}
  .article-title{font-size:27px;line-height:1.4;}
  .article-section{padding:36px 0 64px;}
  .related{padding-bottom:64px;}
  .related-head h2{font-size:24px;}
  .prose{font-size:16px;line-height:1.9;}
  .prose h2{font-size:23px;}
  .prose h3{font-size:19px;}
  .card-grid{grid-template-columns:1fr;}
  .cta-inner h2{font-size:23px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .float-cta{display:none;}
  .mobile-bar{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:75;height:56px;
    background:var(--white);border-top:1px solid var(--line);
    padding-bottom:env(safe-area-inset-bottom);
  }
  .mobile-bar a{
    display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:500;
  }
  .mobile-bar .mb-primary{flex:0 0 60%;background:var(--teal);color:#fff;}
  .mobile-bar .mb-primary:hover{background:var(--teal-dark);color:#fff;}
  .mobile-bar .mb-secondary{flex:0 0 40%;color:var(--ink-purple);border-left:1px solid var(--line);}
}
@media (max-width:479px){
  .container{padding:0 20px;}
  .article-title{font-size:24px;}
  .brand-name{font-size:18px;}
  .brand-star{width:18px;height:18px;}
  .btn{width:auto;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
  .empty-article{padding:40px 20px;}
}

/* roulang page: category1 */
:root{
  --ink:#171225;
  --ink-deep:#1E1830;
  --teal:#2E9E8F;
  --teal-deep:#237A6F;
  --amber:#D9823B;
  --moon:#F7F5F1;
  --cloud:#EFEBE3;
  --white:#FFFFFF;
  --text:#1E1B26;
  --muted:#6E6878;
  --line:#DED8CE;
  --error:#C24A3A;
  --success:#2E9E8F;
  --radius-card:16px;
  --radius-img:14px;
  --radius-btn:12px;
  --shadow-sm:0 12px 32px rgba(20,16,31,.08);
  --shadow-md:0 18px 44px rgba(20,16,31,.14);
  --serif:"Noto Serif SC","Songti SC","Source Han Serif SC",Georgia,serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --container:1200px;
}
*,
*::before,
*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background:var(--moon);
  -webkit-font-smoothing:antialiased;
}
body.is-locked{overflow:hidden}
h1,h2,h3,h4{letter-spacing:.02em;color:var(--ink)}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
a{color:var(--teal-deep);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--teal)}
img{max-width:100%;display:block;border-style:none}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
svg{display:block}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px;border-radius:6px}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}

/* ---------- 顶部信息条 ---------- */
.topbar{
  background:var(--ink);
  color:rgba(247,245,241,.72);
  font-size:12px;
  line-height:1;
}
.topbar .container{
  height:34px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.topbar-left{display:flex;align-items:center;gap:10px;min-width:0}
.topbar-domain{color:rgba(247,245,241,.92);letter-spacing:.02em;white-space:nowrap}
.topbar-div{width:1px;height:11px;background:rgba(247,245,241,.28);flex:none}
.topbar-desc{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-right{display:flex;align-items:center;gap:18px;flex:none}
.topbar-right a{color:rgba(247,245,241,.72);white-space:nowrap}
.topbar-right a:hover{color:var(--teal)}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--moon);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 22px rgba(20,16,31,.09)}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:68px;
  transition:height .25s ease;
}
.site-header.is-scrolled .nav-inner{height:60px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);flex:none}
.brand:hover{color:var(--ink)}
.brand-star{width:22px;height:22px;color:var(--teal);flex:none}
.brand-name{
  font-family:var(--serif);
  font-size:23px;
  font-weight:700;
  letter-spacing:.02em;
  white-space:nowrap;
}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:6px 0;
  font-size:15px;
  font-weight:500;
  color:var(--text);
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-2px;
  height:2px;
  background:var(--teal);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .22s ease;
}
.nav-links a:hover{color:var(--teal-deep)}
.nav-links a:hover::after,
.nav-links a.is-active::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--ink);font-weight:700}
.nav-actions{display:flex;align-items:center;gap:14px;flex:none}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border:1px solid transparent;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  line-height:1;
  text-decoration:none;
  cursor:pointer;
  transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.btn-primary{background:var(--teal);color:#fff}
.btn-primary:hover{background:var(--teal-deep);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(46,158,143,.28)}
.btn-primary:active{transform:none;box-shadow:none}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--moon);transform:translateY(-1px)}
.btn-ghost:active{transform:none}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  padding:0;
  border:1px solid var(--line);
  border-radius:10px;
  background:transparent;
  cursor:pointer;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:4px;
  transition:border-color .2s ease;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px}
.nav-toggle:hover{border-color:var(--teal)}

/* ---------- 分类首屏 ---------- */
.cat-hero{
  position:relative;
  padding:56px 0 64px;
  background:var(--cloud);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.cat-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(23,18,37,.14) 1px,transparent 1px);
  background-size:26px 26px;
  opacity:.35;
  pointer-events:none;
}
.cat-hero .container{position:relative}
.cat-hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) 360px;
  gap:48px;
  align-items:center;
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--muted);
}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--teal-deep)}
.breadcrumb .sep{opacity:.5}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin:20px 0 14px;
  font-size:13px;
  letter-spacing:.05em;
  color:var(--teal-deep);
}
.eyebrow svg{width:14px;height:14px;fill:var(--teal);flex:none}
.cat-hero h1{
  margin:0 0 16px;
  font-family:var(--serif);
  font-size:42px;
  line-height:1.24;
  letter-spacing:.02em;
  color:var(--ink);
}
.cat-lead{
  max-width:540px;
  margin:0;
  font-size:19px;
  line-height:1.8;
  color:var(--muted);
}
.hero-figure{
  position:relative;
  aspect-ratio:4/3;
  border-radius:18px;
  overflow:hidden;
  border:1px solid rgba(23,18,37,.12);
  box-shadow:var(--shadow-sm);
  background:var(--ink);
}
.hero-figure img{width:100%;height:100%;object-fit:cover}
.hero-figure::after{
  content:"";
  position:absolute;
  inset:0;
  background:radial-gradient(circle at 78% 18%,rgba(217,130,59,.22),transparent 55%),
             linear-gradient(160deg,rgba(23,18,37,.34),rgba(23,18,37,.05) 60%);
  pointer-events:none;
}

/* ---------- 主区两栏 ---------- */
.cat-main{padding:96px 0}
.cat-layout{
  display:grid;
  grid-template-columns:minmax(0,2fr) minmax(0,1fr);
  gap:48px;
  align-items:start;
}
.list-head{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:16px;
  padding-bottom:16px;
  border-bottom:1px solid var(--line);
  margin-bottom:4px;
}
.list-head h2{
  margin:0;
  font-family:var(--serif);
  font-size:30px;
  line-height:1.3;
}
.list-note{font-size:13px;color:var(--muted);white-space:nowrap}

.news-list{display:flex;flex-direction:column}
.news-item{border-bottom:1px solid var(--line)}
.news-item:last-child{border-bottom:none}
.news-link{
  display:grid;
  grid-template-columns:200px minmax(0,1fr);
  gap:24px;
  padding:24px 18px;
  border-radius:var(--radius-card);
  color:inherit;
  transition:background .22s ease;
}
.news-link:hover{background:var(--cloud);color:inherit}
.news-thumb{
  aspect-ratio:16/9;
  border-radius:12px;
  overflow:hidden;
  background:var(--cloud);
}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.news-link:hover .news-thumb img{transform:scale(1.03)}
.news-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  margin-bottom:8px;
  font-size:13px;
  color:var(--muted);
  line-height:1.6;
}
.badge{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:999px;
  background:rgba(46,158,143,.13);
  color:var(--teal-deep);
  font-size:12px;
  font-weight:600;
  letter-spacing:.02em;
}
.badge-amber{background:rgba(217,130,59,.15);color:#9C5A22}
.news-title{
  margin:0 0 8px;
  font-size:19px;
  line-height:1.55;
  font-weight:700;
  color:var(--ink);
  transition:color .2s ease;
}
.news-link:hover .news-title{color:var(--teal-deep)}
.news-excerpt{
  margin:0;
  max-width:34em;
  font-size:14px;
  line-height:1.85;
  color:var(--muted);
}
.news-foot{
  margin-top:12px;
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:13px;
  font-weight:600;
  color:var(--teal-deep);
}
.news-foot svg{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform .2s ease}
.news-link:hover .news-foot svg{transform:translateX(3px)}

/* ---------- 侧栏 ---------- */
.side-col{
  position:sticky;
  top:96px;
  display:flex;
  flex-direction:column;
  gap:20px;
}
.side-card{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:24px;
  box-shadow:var(--shadow-sm);
}
.side-card h3{
  margin:0 0 14px;
  font-family:var(--serif);
  font-size:18px;
  line-height:1.4;
}
.side-nav a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:11px 0;
  border-bottom:1px dashed var(--line);
  font-size:15px;
  color:var(--text);
  transition:color .2s ease,padding-left .2s ease;
}
.side-nav li:last-child a{border-bottom:none;padding-bottom:0}
.side-nav li:first-child a{padding-top:0}
.side-nav a:hover{color:var(--teal-deep);padding-left:4px}
.side-nav .arrow{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;opacity:.55;flex:none}
.side-note{
  background:var(--moon);
  border:1px solid var(--line);
  border-left:3px solid var(--teal);
  border-radius:12px;
  padding:18px;
}
.side-note h3{margin:0 0 8px;font-size:16px;font-family:var(--sans);font-weight:700;color:var(--ink)}
.side-note p{font-size:14px;line-height:1.85;color:var(--muted);margin:0}
.side-note .note-link{
  display:inline-flex;
  align-items:center;
  gap:5px;
  margin-top:12px;
  font-size:14px;
  font-weight:600;
  color:var(--teal-deep);
}
.side-note .note-link svg{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.side-card.is-dark{
  background:var(--ink);
  border-color:var(--ink);
  color:rgba(247,245,241,.76);
  position:relative;
  overflow:hidden;
}
.side-card.is-dark h3{color:var(--moon)}
.side-card.is-dark p{font-size:14px;line-height:1.85;color:rgba(247,245,241,.68);margin:0 0 16px}
.side-card.is-dark .btn{width:100%}
.side-card.is-dark::after{
  content:"";
  position:absolute;
  right:-30px;top:-30px;
  width:120px;height:120px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(46,158,143,.28),transparent 68%);
  pointer-events:none;
}

/* ---------- 本栏关注 ---------- */
.focus-band{
  padding:96px 0;
  background:var(--cloud);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.focus-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,2fr);
  gap:56px;
  align-items:start;
}
.focus-intro h2{
  margin:0 0 14px;
  font-family:var(--serif);
  font-size:32px;
  line-height:1.35;
}
.focus-intro p{font-size:15px;line-height:1.9;color:var(--muted);margin:0 0 20px;max-width:24em}
.focus-list{display:flex;flex-direction:column}
.focus-item{
  display:grid;
  grid-template-columns:56px minmax(0,1fr);
  gap:18px;
  padding:22px 0;
  border-bottom:1px solid var(--line);
}
.focus-item:first-child{padding-top:0}
.focus-item:last-child{border-bottom:none;padding-bottom:0}
.focus-num{
  font-family:var(--serif);
  font-size:20px;
  line-height:1.4;
  color:var(--teal);
  letter-spacing:.04em;
  font-variant-numeric:tabular-nums;
}
.focus-item h3{margin:0 0 6px;font-size:18px;line-height:1.5;color:var(--ink)}
.focus-item p{margin:0;font-size:15px;line-height:1.85;color:var(--muted)}

/* ---------- 深色 CTA ---------- */
.cta-band{
  position:relative;
  padding:80px 0;
  background:var(--ink);
  color:rgba(247,245,241,.78);
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(247,245,241,.16) 1px,transparent 1px);
  background-size:30px 30px;
  opacity:.4;
  pointer-events:none;
}
.cta-grid{
  position:relative;
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  gap:40px;
  align-items:center;
}
.cta-band h2{
  margin:0 0 14px;
  font-family:var(--serif);
  font-size:34px;
  line-height:1.35;
  color:var(--moon);
}
.cta-band p{
  margin:0;
  max-width:46em;
  font-size:16px;
  line-height:1.9;
  color:rgba(247,245,241,.7);
}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.cta-actions .btn-ghost{border-color:rgba(247,245,241,.5);color:var(--moon)}
.cta-actions .btn-ghost:hover{background:var(--moon);color:var(--ink);border-color:var(--moon)}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink);
  color:rgba(247,245,241,.72);
  padding:72px 0 0;
  border-top:1px solid rgba(247,245,241,.1);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand-name{
  font-family:var(--serif);
  font-size:20px;
  font-weight:700;
  color:var(--moon);
  letter-spacing:.02em;
}
.footer-desc{
  margin:0;
  max-width:22em;
  font-size:14px;
  line-height:1.9;
  color:rgba(247,245,241,.6);
}
.footer-col h4{
  margin:0 0 16px;
  font-size:15px;
  font-weight:600;
  color:var(--moon);
  letter-spacing:.03em;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;font-size:14px;line-height:1.7}
.footer-col a{color:rgba(247,245,241,.66)}
.footer-col a:hover{color:var(--teal)}
.footer-col li{color:rgba(247,245,241,.6)}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:20px 0 24px;
  border-top:1px solid rgba(247,245,241,.12);
  font-size:13px;
  color:rgba(247,245,241,.5);
}
.to-top{display:inline-flex;align-items:center;gap:6px;color:rgba(247,245,241,.72)}
.to-top svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.to-top:hover{color:var(--teal)}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;
  right:24px;
  bottom:32px;
  z-index:70;
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:48px;
  padding:0 22px;
  border-radius:999px;
  background:var(--teal);
  color:#fff;
  font-size:15px;
  font-weight:600;
  box-shadow:0 12px 32px rgba(20,16,31,.2);
  opacity:0;
  visibility:hidden;
  transform:translateY(10px);
  transition:opacity .28s ease,transform .28s ease,visibility .28s ease,background .2s ease;
}
.float-cta svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.float-cta.is-visible{opacity:1;visibility:visible;transform:none}
.float-cta:hover{background:var(--teal-deep);color:#fff}
.float-cta.is-hidden{opacity:0;visibility:hidden;transform:translateY(10px)}

.mobile-bar{
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:80;
  display:none;
  background:#fff;
  border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
}
.mb-inner{display:flex;height:56px}
.mb-primary{
  flex:0 0 60%;
  display:flex;
  align-items:center;
  justify-content:center;
  background:var(--teal);
  color:#fff;
  font-size:15px;
  font-weight:600;
}
.mb-primary:hover{background:var(--teal-deep);color:#fff}
.mb-secondary{
  flex:1;
  display:flex;
  align-items:center;
  justify-content:center;
  border-left:1px solid var(--line);
  color:var(--ink);
  font-size:15px;
  font-weight:500;
}
.mb-secondary:hover{color:var(--teal-deep)}

/* ---------- 移动抽屉 ---------- */
.drawer-overlay{
  position:fixed;
  inset:0;
  z-index:90;
  background:rgba(20,16,31,.5);
  opacity:0;
  visibility:hidden;
  transition:opacity .28s ease,visibility .28s ease;
}
.drawer-overlay.is-open{opacity:1;visibility:visible}
.mobile-drawer{
  position:fixed;
  top:0;right:0;bottom:0;
  z-index:95;
  width:82%;
  max-width:360px;
  display:flex;
  flex-direction:column;
  padding:20px;
  background:var(--moon);
  transform:translateX(100%);
  transition:transform .3s ease;
  overflow-y:auto;
}
.mobile-drawer.is-open{transform:none}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-bottom:18px;
  border-bottom:1px solid var(--line);
}
.drawer-head .brand-name{font-size:18px}
.drawer-close{
  width:40px;height:40px;
  flex:none;
  border:1px solid var(--line);
  border-radius:10px;
  background:#fff;
  color:var(--ink);
  font-size:20px;
  line-height:1;
  cursor:pointer;
  transition:border-color .2s ease,color .2s ease;
}
.drawer-close:hover{border-color:var(--teal);color:var(--teal-deep)}
.drawer-nav{display:flex;flex-direction:column;margin:14px 0 18px}
.drawer-nav a{
  display:flex;
  align-items:center;
  height:56px;
  border-bottom:1px solid var(--line);
  font-size:18px;
  color:var(--text);
}
.drawer-nav a.is-active{color:var(--teal-deep);font-weight:700}
.drawer-cta{width:100%;margin-top:auto}
.drawer-foot{
  margin-top:16px;
  padding-top:16px;
  border-top:1px solid var(--line);
  font-size:13px;
  line-height:1.8;
  color:var(--muted);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{padding:0 24px}
  .cat-hero-grid{grid-template-columns:minmax(0,1fr) 320px;gap:32px}
  .cat-hero h1{font-size:38px}
  .cat-layout{grid-template-columns:minmax(0,1fr) 300px;gap:32px}
  .news-link{grid-template-columns:170px minmax(0,1fr);gap:20px}
  .focus-grid{gap:40px}
}
@media (max-width:991px){
  .nav-links{display:none}
  .nav-cta{display:none}
  .nav-toggle{display:flex}
  .cat-hero{padding:44px 0 52px}
  .cat-hero-grid{grid-template-columns:minmax(0,1fr);gap:28px}
  .cat-hero h1{font-size:34px}
  .cat-lead{font-size:17px;max-width:100%}
  .hero-figure{max-width:520px;aspect-ratio:16/9}
  .cat-main{padding:72px 0}
  .cat-layout{grid-template-columns:minmax(0,1fr);gap:36px}
  .side-col{position:static;top:auto}
  .focus-band{padding:72px 0}
  .focus-grid{grid-template-columns:minmax(0,1fr);gap:28px}
  .cta-grid{grid-template-columns:minmax(0,1fr);gap:26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  body{padding-bottom:72px}
  .container{padding:0 20px}
  .topbar-desc{display:none}
  .topbar-div{display:none}
  .topbar-right a:first-child{display:none}
  .brand-name{font-size:20px}
  .brand-star{width:20px;height:20px}
  .cat-hero h1{font-size:30px}
  .list-head{flex-direction:column;align-items:flex-start;gap:6px}
  .list-head h2{font-size:24px}
  .news-link{grid-template-columns:minmax(0,1fr);gap:16px;padding:20px 14px}
  .news-thumb{aspect-ratio:16/9}
  .news-title{font-size:17px}
  .focus-intro h2{font-size:26px}
  .cta-band{padding:56px 0}
  .cta-band h2{font-size:26px}
  .cta-actions .btn{width:100%}
  .float-cta{display:none}
  .mobile-bar{display:block}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;padding-bottom:28px}
  .cat-main{padding:56px 0}
  .focus-band{padding:56px 0}
}
@media (max-width:480px){
  .cat-hero h1{font-size:27px}
  .cat-lead{font-size:16px}
  .side-card{padding:20px}
  .news-link{padding:18px 10px}
  .btn{width:100%}
  .nav-actions .btn{width:auto}
  .focus-item{grid-template-columns:40px minmax(0,1fr);gap:14px}
}

/* roulang page: category2 */
:root{
  --ink-purple:#171225;
  --ink-purple-2:#1E1830;
  --teal:#2E9E8F;
  --teal-dark:#237A6F;
  --amber:#D9823B;
  --moon:#F7F5F1;
  --cloud:#EFEBE3;
  --white:#FFFFFF;
  --text:#1E1B26;
  --muted:#6E6878;
  --line:#DED8CE;
  --error:#C24A3A;
  --success:#2E9E8F;
  --radius-card:16px;
  --radius-img:14px;
  --radius-btn:12px;
  --radius-input:10px;
  --shadow-sm:0 12px 32px rgba(20,16,31,.08);
  --shadow-lg:0 18px 44px rgba(20,16,31,.14);
  --font-title:"Noto Serif SC","Songti SC",serif;
  --font-body:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --container:1200px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--moon);
  color:var(--text);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--teal);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--teal-dark);}
button{font-family:inherit;}
h1,h2,h3,h4{font-family:var(--font-title);color:var(--text);margin:0;letter-spacing:.01em;font-weight:700;}
h1{font-size:42px;line-height:1.2;}
h2{font-size:34px;line-height:1.3;}
h3{font-size:20px;line-height:1.5;}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px;border-radius:4px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ============ 顶部信息条 ============ */
.topbar{
  background:var(--ink-purple);
  color:rgba(247,245,241,.78);
  font-size:12px;
  line-height:1;
  height:34px;
  display:flex;
  align-items:center;
}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px;}
.topbar-left{display:flex;align-items:center;gap:10px;min-width:0;letter-spacing:.02em;}
.topbar-left .dot-sep{color:rgba(247,245,241,.3);}
.topbar-left .hint{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar-right{display:flex;align-items:center;gap:18px;flex-shrink:0;}
.topbar-right a{color:rgba(247,245,241,.82);font-size:12px;}
.topbar-right a:hover{color:var(--teal);}

/* ============ 主导航 ============ */
.navbar{
  position:sticky;
  top:0;
  z-index:90;
  background:var(--moon);
  border-bottom:1px solid var(--line);
  height:68px;
  transition:height .25s ease,box-shadow .25s ease;
}
.navbar.is-shrink{height:60px;box-shadow:0 6px 20px rgba(20,16,31,.07);}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:100%;
  gap:24px;
}
.logo{display:flex;align-items:center;gap:10px;color:var(--text);flex-shrink:0;}
.logo:hover{color:var(--text);}
.logo .brand-star{width:22px;height:22px;color:var(--teal);flex-shrink:0;}
.logo-name{
  font-family:var(--font-title);
  font-size:23px;
  font-weight:700;
  letter-spacing:.02em;
  white-space:nowrap;
}
.nav-links{display:flex;align-items:center;gap:28px;}
.nav-links a{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--text);
  padding:6px 0;
  white-space:nowrap;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-2px;
  height:2px;
  background:var(--teal);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .22s ease;
}
.nav-links a:hover{color:var(--teal-dark);}
.nav-links a:hover::after,.nav-links a.is-active::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--teal-dark);}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:500;
  border:1px solid transparent;
  cursor:pointer;
  transition:background .2s ease,color .2s ease,transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--teal);color:#fff;border-color:var(--teal);}
.btn-primary:hover{background:var(--teal-dark);border-color:var(--teal-dark);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--text);}
.btn-ghost:hover{background:var(--ink-purple);border-color:var(--ink-purple);color:var(--moon);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-disabled,.btn[disabled]{opacity:.45;pointer-events:none;transform:none;}
.btn-block{width:100%;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line);
  background:var(--white);
  border-radius:10px;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  color:var(--text);
}
.nav-toggle svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;}

/* 移动抽屉 */
.drawer-mask{
  position:fixed;inset:0;
  background:rgba(20,16,31,.5);
  opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;
  z-index:98;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;
  top:0;right:0;
  width:82%;
  max-width:360px;
  height:100%;
  background:var(--moon);
  z-index:99;
  transform:translateX(100%);
  transition:transform .28s ease;
  display:flex;
  flex-direction:column;
  overflow-y:auto;
  padding:22px 22px 28px;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:18px;border-bottom:1px solid var(--line);}
.drawer-brand{display:flex;align-items:center;gap:9px;font-family:var(--font-title);font-size:19px;font-weight:700;color:var(--text);}
.drawer-brand svg{width:20px;height:20px;color:var(--teal);}
.drawer-close{
  width:40px;height:40px;border:1px solid var(--line);background:var(--white);
  border-radius:10px;display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--text);
}
.drawer-close svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;}
.drawer-nav{margin:10px 0 18px;}
.drawer-nav a{
  display:flex;align-items:center;height:56px;
  font-size:18px;color:var(--text);font-weight:500;
  border-bottom:1px solid var(--line);
}
.drawer-nav a.is-active{color:var(--teal-dark);}
.drawer-nav a:hover{color:var(--teal-dark);}
.drawer-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--line);}
.drawer-foot .mini{font-size:12px;color:var(--muted);line-height:1.7;margin-bottom:12px;}

/* ============ 分类 Hero ============ */
.cat-hero{
  background:var(--cloud);
  padding:56px 0 48px;
  position:relative;
  overflow:hidden;
}
.cat-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(23,18,37,.16) 1px,transparent 1px);
  background-size:26px 26px;
  opacity:.35;
  pointer-events:none;
}
.cat-hero .container{position:relative;z-index:1;}
.breadcrumb{
  display:flex;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);
  margin-bottom:20px;flex-wrap:wrap;
}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--teal-dark);}
.breadcrumb .sep{color:#BDB6AA;}
.breadcrumb .current{color:var(--text);}
.cat-hero-grid{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:48px;
  align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--teal-dark);
  background:rgba(46,158,143,.1);
  border:1px solid rgba(46,158,143,.24);
  border-radius:999px;
  padding:5px 14px;
  margin-bottom:18px;
  letter-spacing:.02em;
}
.eyebrow svg{width:12px;height:12px;color:var(--teal);}
.cat-hero h1{font-size:44px;line-height:1.22;margin-bottom:16px;}
.cat-hero h1 .accent{color:var(--teal-dark);}
.cat-lead{font-size:20px;line-height:1.8;color:#3C3648;max-width:560px;margin-bottom:26px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  height:34px;padding:0 14px;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:999px;
  font-size:13px;color:var(--text);
}
.chip svg{width:14px;height:14px;color:var(--teal);stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.cat-hero-media{position:relative;}
.cat-hero-media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:18px;
  border:1px solid rgba(255,255,255,.7);
  box-shadow:var(--shadow-sm);
}
.cat-hero-media .media-badge{
  position:absolute;
  left:16px;bottom:16px;
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(23,18,37,.86);
  color:#F2EFE9;
  font-size:12px;
  padding:8px 14px;
  border-radius:999px;
  letter-spacing:.02em;
}
.cat-hero-media .media-badge svg{width:13px;height:13px;color:var(--teal);}

/* ============ 锚点条 ============ */
.anchorbar{
  position:sticky;
  top:68px;
  z-index:70;
  background:var(--moon);
  border-bottom:1px solid var(--line);
  height:48px;
  display:flex;
  align-items:center;
  transition:top .25s ease;
}
.navbar.is-shrink + .anchorbar{top:60px;}
.anchorbar .container{display:flex;align-items:center;gap:10px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;}
.anchorbar .container::-webkit-scrollbar{display:none;}
.anchorbar a{
  display:inline-flex;align-items:center;
  height:32px;padding:0 16px;
  border-radius:999px;
  font-size:13px;
  color:var(--muted);
  border:1px solid transparent;
  white-space:nowrap;
  transition:all .2s ease;
}
.anchorbar a:hover{color:var(--teal-dark);background:rgba(46,158,143,.08);}
.anchorbar a.is-active{background:var(--teal);color:#fff;border-color:var(--teal);}

/* ============ 通用板块 ============ */
.section{padding:96px 0;}
.section-cloud{background:var(--cloud);}
.section-dark{background:var(--ink-purple);color:#EFEAE2;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--teal-dark);
  margin-bottom:12px;letter-spacing:.04em;
}
.section-kicker svg{width:12px;height:12px;color:var(--teal);}
.section-head h2{margin-bottom:14px;}
.section-head p{font-size:17px;color:var(--muted);line-height:1.9;margin:0;}
.section-dark .section-head p{color:rgba(239,234,226,.72);}
.section-dark .section-kicker{color:#69C6B9;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:500;color:var(--teal-dark);
}
.text-link svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;transition:transform .2s ease;}
.text-link:hover{color:var(--teal);text-decoration:underline;text-underline-offset:4px;}
.text-link:hover svg{transform:translateX(3px);}

/* ============ 大图预览 ============ */
.showcase{
  border-radius:18px;
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--white);
  box-shadow:var(--shadow-sm);
}
.showcase img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.showcase-caption{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 24px;
  border-top:1px solid var(--line);
  font-size:13px;color:var(--muted);
  flex-wrap:wrap;
}
.showcase-caption .tag{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(46,158,143,.1);
  color:var(--teal-dark);
  border-radius:999px;
  padding:4px 12px;
  font-size:12px;
}

/* ============ 功能矩阵 ============ */
.matrix{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
}
.matrix-item{
  display:flex;
  gap:18px;
  padding:26px;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.matrix-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:#CFC7BA;}
.matrix-icon{
  width:46px;height:46px;
  flex-shrink:0;
  border-radius:12px;
  background:rgba(46,158,143,.1);
  display:flex;align-items:center;justify-content:center;
  color:var(--teal-dark);
}
.matrix-icon svg{width:23px;height:23px;stroke:currentColor;fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;}
.matrix-body h3{font-size:19px;margin-bottom:8px;}
.matrix-body p{font-size:15px;line-height:1.8;color:var(--muted);margin:0 0 10px;}
.matrix-body .mini-link{font-size:13px;color:var(--teal-dark);font-weight:500;}

/* ============ 三步演示条 ============ */
.steps{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
  position:relative;
}
.step{
  background:rgba(255,255,255,.05);
  border:1px solid rgba(239,234,226,.14);
  border-radius:var(--radius-card);
  padding:28px 24px;
}
.step-num{
  width:44px;height:44px;
  border-radius:50%;
  border:1px solid rgba(105,198,185,.6);
  color:#69C6B9;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-title);
  font-size:18px;
  margin-bottom:18px;
  background:rgba(46,158,143,.1);
}
.step h3{font-size:19px;color:#F2EFE9;margin-bottom:10px;}
.step p{font-size:15px;line-height:1.85;color:rgba(239,234,226,.72);margin:0;}
.steps-foot{margin-top:32px;display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;}
.section-dark .text-link{color:#69C6B9;}
.section-dark .text-link:hover{color:#8FDCD1;}

/* ============ 适用场景 ============ */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.scene-card{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  transition:transform .22s ease,box-shadow .22s ease;
}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);}
.scene-card img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .35s ease;}
.scene-card:hover img{transform:scale(1.03);}
.scene-body{padding:22px 24px 24px;}
.scene-body h3{font-size:19px;margin-bottom:8px;}
.scene-body p{font-size:15px;line-height:1.8;color:var(--muted);margin:0;}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start;}
.faq-aside{position:sticky;top:132px;}
.faq-aside h2{margin-bottom:14px;}
.faq-aside p{font-size:16px;color:var(--muted);line-height:1.9;}
.contact-card{
  margin-top:24px;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:22px;
}
.contact-card h3{font-size:17px;margin-bottom:10px;}
.contact-card p{font-size:14px;line-height:1.8;color:var(--muted);margin:0 0 14px;}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  background:none;
  border:none;
  padding:22px 4px;
  text-align:left;
  cursor:pointer;
  color:var(--text);
}
.faq-q span.qt{font-family:var(--font-title);font-size:18px;line-height:1.6;font-weight:700;}
.faq-q .ic{
  width:22px;height:22px;flex-shrink:0;
  position:relative;
  transition:transform .25s ease;
}
.faq-q .ic::before,.faq-q .ic::after{
  content:"";position:absolute;background:var(--teal-dark);border-radius:2px;
}
.faq-q .ic::before{left:0;top:10px;width:22px;height:2px;}
.faq-q .ic::after{left:10px;top:0;width:2px;height:22px;transition:opacity .25s ease;}
.faq-item.is-open .faq-q .ic::after{opacity:0;}
.faq-item.is-open .faq-q .ic{transform:rotate(180deg);}
.faq-q:hover span.qt{color:var(--teal-dark);}
.faq-a{
  overflow:hidden;
  max-height:0;
  transition:max-height .3s ease;
}
.faq-a p{
  font-size:16px;
  line-height:1.9;
  color:var(--muted);
  padding:0 4px 24px;
  margin:0;
  max-width:68ch;
}
.faq-item.is-open .faq-a{max-height:420px;}

/* ============ CTA 带 ============ */
.cta-band{background:var(--ink-purple);color:#EFEAE2;padding:76px 0;}
.cta-grid{display:grid;grid-template-columns:6fr 6fr;gap:48px;align-items:center;}
.cta-grid h2{color:#F5F2EC;font-size:34px;margin-bottom:16px;}
.cta-grid p{color:rgba(239,234,226,.74);font-size:17px;line-height:1.9;margin:0 0 24px;max-width:32em;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
.cta-actions .btn-ghost{border-color:rgba(239,234,226,.45);color:#F2EFE9;}
.cta-actions .btn-ghost:hover{background:#F2EFE9;color:var(--ink-purple);border-color:#F2EFE9;}
.cta-panel{
  background:var(--white);
  border-radius:var(--radius-card);
  padding:28px;
  color:var(--text);
}
.cta-panel h3{font-size:18px;margin-bottom:6px;}
.cta-panel > p{font-size:14px;color:var(--muted);margin-bottom:18px;line-height:1.8;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;color:var(--muted);margin-bottom:7px;}
.field input,.field select,.field textarea{
  width:100%;
  height:44px;
  border:1px solid var(--line);
  border-radius:var(--radius-input);
  background:var(--moon);
  padding:0 14px;
  font-size:15px;
  font-family:inherit;
  color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field textarea{height:104px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-color:var(--teal);
  background:var(--white);
  box-shadow:0 0 0 3px rgba(46,158,143,.18);
}
.field.error input,.field.error textarea,.field.error select{border-color:var(--error);}
.field .err-msg{display:none;font-size:13px;color:var(--error);margin-top:6px;}
.field.error .err-msg{display:block;}
.form-note{font-size:13px;color:var(--success);margin-top:12px;display:none;}
.form-note.is-visible{display:block;}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-purple);color:#EFEAE2;padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-star{color:var(--teal);}
.footer-brand-name{font-family:var(--font-title);font-size:21px;font-weight:700;color:#F5F2EC;letter-spacing:.02em;}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(239,234,226,.66);margin:0;max-width:24em;}
.footer-col h4{font-family:var(--font-body);font-size:14px;font-weight:700;color:#F5F2EC;margin-bottom:16px;letter-spacing:.04em;}
.footer-col ul li{font-size:14px;line-height:1.85;color:rgba(239,234,226,.66);margin-bottom:10px;}
.footer-col ul li a{color:rgba(239,234,226,.66);}
.footer-col ul li a:hover{color:var(--teal);}
.footer-bottom{
  margin-top:52px;
  border-top:1px solid rgba(239,234,226,.14);
  padding:20px 0 24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  font-size:13px;
  color:rgba(239,234,226,.52);
  flex-wrap:wrap;
}
.to-top{display:inline-flex;align-items:center;gap:6px;color:rgba(239,234,226,.72);font-size:13px;}
.to-top svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.to-top:hover{color:var(--teal);}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;
  right:24px;
  bottom:32px;
  height:48px;
  padding:0 22px;
  border-radius:999px;
  background:var(--teal);
  color:#fff;
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:15px;
  font-weight:500;
  box-shadow:0 14px 34px rgba(23,18,37,.24);
  z-index:80;
  opacity:0;
  visibility:hidden;
  transform:translateY(10px);
  transition:opacity .3s ease,transform .3s ease,visibility .3s ease,background .2s ease;
}
.float-cta svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{background:var(--teal-dark);color:#fff;}
.mobile-bar{display:none;}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .container{max-width:960px;}
  .nav-links{gap:20px;}
  .cat-hero h1{font-size:40px;}
  .faq-wrap{grid-template-columns:1fr;gap:32px;}
  .faq-aside{position:static;}
}
@media (max-width:991px){
  .container{max-width:720px;}
  .nav-links,.nav-actions .btn{display:none;}
  .nav-toggle{display:flex;}
  .cat-hero-grid{grid-template-columns:1fr;gap:32px;}
  .cat-hero-media{order:-1;}
  .cat-hero h1{font-size:34px;}
  .cat-lead{font-size:18px;max-width:none;}
  .section{padding:72px 0;}
  .matrix{grid-template-columns:1fr;}
  .scene-grid{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:1fr;}
  .cta-grid{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .anchorbar{position:static;height:48px;border-bottom:1px solid var(--line);}
  .float-cta{right:16px;bottom:24px;}
  h1{font-size:34px;}
  h2{font-size:28px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  body{font-size:16px;padding-bottom:72px;}
  .topbar-left .hint{display:none;}
  .topbar-left .dot-sep{display:none;}
  .topbar-right a:first-child{display:none;}
  .logo-name{font-size:20px;}
  .cat-hero{padding:36px 0 40px;}
  .cat-hero h1{font-size:30px;}
  .cat-lead{font-size:17px;}
  .section{padding:56px 0;}
  h2{font-size:26px;}
  .section-head{margin-bottom:32px;}
  .matrix-item{padding:20px;gap:14px;}
  .scene-grid{grid-template-columns:1fr;}
  .showcase-caption{padding:14px 18px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
  .float-cta{display:none;}
  .mobile-bar{
    display:flex;
    position:fixed;
    left:0;right:0;bottom:0;
    height:56px;
    background:var(--white);
    border-top:1px solid var(--line);
    z-index:85;
    padding-bottom:env(safe-area-inset-bottom);
  }
  .mobile-bar a{
    display:flex;align-items:center;justify-content:center;
    font-size:15px;font-weight:500;
  }
  .mobile-bar .mb-main{flex:0 0 60%;background:var(--teal);color:#fff;}
  .mobile-bar .mb-main:active{background:var(--teal-dark);}
  .mobile-bar .mb-sub{flex:0 0 40%;color:var(--text);border-left:1px solid var(--line);}
  .cta-panel{padding:22px;}
  .faq-q span.qt{font-size:17px;}
}
@media (max-width:479px){
  h1{font-size:28px;}
  .cat-hero h1{font-size:26px;}
  .btn{height:44px;padding:0 18px;font-size:15px;}
  .hero-meta{gap:8px;}
  .chip{height:32px;font-size:12px;}
  .section{padding:48px 0;}
  .matrix-item{flex-direction:column;}
}
.visually-hidden{
  position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;
  clip:rect(0,0,0,0);white-space:nowrap;border:0;
}

/* roulang page: category3 */
:root{
  --ink-night:#171225;
  --ink-deep:#1E1830;
  --orbit:#2E9E8F;
  --orbit-deep:#237A6F;
  --dust-orange:#D9823B;
  --moon:#F7F5F1;
  --cloud:#EFEBE3;
  --white:#FFFFFF;
  --text:#1E1B26;
  --text-weak:#6E6878;
  --line:#DED8CE;
  --danger:#C24A3A;
  --success:#2E9E8F;
  --radius-card:16px;
  --radius-img:14px;
  --radius-btn:12px;
  --radius-input:10px;
  --shadow-card:0 12px 32px rgba(20,16,31,.08);
  --shadow-hover:0 18px 44px rgba(20,16,31,.14);
  --container:1200px;
  --nav-h:68px;
  --font-title:"Noto Serif SC","Songti SC",serif;
  --font-body:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background:var(--moon);
  padding-bottom:0;
}
body.is-locked{overflow:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
h1,h2,h3,h4{margin:0;font-family:var(--font-title);font-weight:600;letter-spacing:.015em;color:var(--text)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--text)}
:focus-visible{outline:2px solid var(--dust-orange);outline-offset:3px;border-radius:4px}
::selection{background:rgba(46,158,143,.22)}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section--cloud{background:var(--cloud)}
.section--night{background:var(--ink-night);color:var(--moon)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.section-title{font-size:34px;line-height:1.3}
.section-sub{margin-top:12px;font-size:16px;color:var(--text-weak);max-width:640px}
.section--night .section-title{color:var(--moon)}
.section--night .section-sub{color:rgba(247,245,241,.72)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.06em;color:var(--orbit-deep);font-weight:500}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--orbit);box-shadow:0 0 0 4px rgba(46,158,143,.16)}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--orbit-deep);font-size:15px;font-weight:500;border-bottom:1px solid transparent;transition:border-color .2s,color .2s,gap .2s}
.text-link:hover{color:var(--orbit);border-bottom-color:var(--orbit);gap:10px}
.text-link svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--radius-btn);font-size:15px;font-weight:500;transition:background .2s,color .2s,transform .2s,box-shadow .2s,border-color .2s}
.btn svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.btn-primary{background:var(--orbit);color:#fff;box-shadow:0 8px 22px rgba(46,158,143,.24)}
.btn-primary:hover{background:var(--orbit-deep);transform:translateY(-1px);box-shadow:0 12px 28px rgba(46,158,143,.3)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--text);border:1px solid var(--text)}
.btn-ghost:hover{background:var(--text);color:var(--moon)}
.btn-light{background:var(--moon);color:var(--ink-night)}
.btn-light:hover{background:#fff;transform:translateY(-1px)}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;transform:none}

/* ---------- 顶部信息条 ---------- */
.site-header{position:relative;z-index:70}
.topbar{background:var(--ink-night);color:rgba(247,245,241,.82);font-size:12px;height:34px;display:flex;align-items:center}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px;height:100%}
.topbar-left{display:flex;align-items:center;gap:10px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-left .sep{opacity:.4}
.topbar-right{display:flex;align-items:center;gap:18px}
.topbar-right a{transition:color .2s}
.topbar-right a:hover{color:var(--orbit)}

/* ---------- 主导航 ---------- */
.nav-main{position:sticky;top:0;z-index:65;background:var(--moon);border-bottom:1px solid var(--line);height:var(--nav-h);transition:height .22s ease,box-shadow .22s ease}
.nav-main.is-scrolled{height:60px;box-shadow:0 8px 24px rgba(20,16,31,.09)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;height:100%}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-star{width:22px;height:22px;color:var(--orbit)}
.brand-name{font-family:var(--font-title);font-size:23px;font-weight:700;letter-spacing:.02em;color:var(--ink-night);line-height:1.2}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-links a{position:relative;font-size:15px;font-weight:500;color:var(--text);padding:22px 0;transition:color .2s}
.nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:14px;height:2px;background:var(--orbit);transform:scaleX(0);transform-origin:left;transition:transform .22s}
.nav-links a:hover{color:var(--orbit-deep)}
.nav-links a:hover::after,.nav-links a.is-active::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--orbit-deep)}
.nav-right{display:flex;align-items:center;gap:14px}
.nav-cta{height:42px;padding:0 22px;border-radius:var(--radius-btn);background:var(--orbit);color:#fff;font-size:14px;font-weight:500;display:inline-flex;align-items:center;gap:6px;transition:background .2s,transform .2s}
.nav-cta:hover{background:var(--orbit-deep);transform:translateY(-1px)}
.nav-cta svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.burger{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;align-items:center;justify-content:center;background:#fff}
.burger span{display:block;width:18px;height:2px;background:var(--ink-night);position:relative}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink-night)}
.burger span::before{top:-6px}
.burger span::after{top:6px}

/* ---------- 抽屉 ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(20,16,31,.5);opacity:0;visibility:hidden;transition:opacity .25s,visibility .25s;z-index:90}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;bottom:0;width:82%;max-width:360px;background:var(--moon);z-index:95;transform:translateX(100%);transition:transform .28s ease;display:flex;flex-direction:column;padding:22px 22px 28px;overflow-y:auto}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:18px;border-bottom:1px solid var(--line)}
.drawer-brand{font-family:var(--font-title);font-size:19px;font-weight:700;color:var(--ink-night)}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid var(--line);display:grid;place-items:center;font-size:22px;line-height:1;color:var(--text)}
.drawer-nav{display:flex;flex-direction:column;margin:10px 0 20px}
.drawer-nav a{display:flex;align-items:center;height:56px;font-size:18px;border-bottom:1px solid var(--line);color:var(--text);transition:color .2s,padding-left .2s}
.drawer-nav a:hover{color:var(--orbit-deep);padding-left:6px}
.drawer-nav a.is-active{color:var(--orbit-deep);font-weight:700}
.drawer-cta{width:100%;margin-top:auto}
.drawer-meta{margin-top:16px;font-size:12px;color:var(--text-weak);text-align:center}

/* ---------- 分类 Hero ---------- */
.page-hero{background:var(--cloud);border-bottom:1px solid var(--line);padding:56px 0 60px;position:relative;overflow:hidden}
.page-hero::after{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(23,18,37,.16) 1px,transparent 1px);background-size:26px 26px;opacity:.35;pointer-events:none}
.hero-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:56px;align-items:center;position:relative;z-index:2}
.breadcrumb{font-size:13px;color:var(--text-weak);display:flex;align-items:center;gap:8px;margin-bottom:18px}
.breadcrumb a:hover{color:var(--orbit-deep)}
.breadcrumb .slash{opacity:.5}
.page-hero h1{font-size:42px;line-height:1.24;letter-spacing:.02em;color:var(--ink-night)}
.hero-lead{margin-top:18px;font-size:18px;line-height:1.8;color:var(--text-weak);max-width:560px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.tag{display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 14px;border-radius:999px;background:rgba(255,255,255,.8);border:1px solid var(--line);font-size:13px;color:var(--text-weak)}
.tag .dot{width:5px;height:5px;border-radius:50%;background:var(--orbit)}
.hero-figure{position:relative;border-radius:18px;overflow:hidden;border:1px solid rgba(23,18,37,.12);box-shadow:var(--shadow-card);aspect-ratio:4/3}
.hero-figure img{width:100%;height:100%;object-fit:cover}
.hero-figure::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(23,18,37,.05),rgba(23,18,37,.42))}

/* ---------- 指引说明 ---------- */
.intro-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.intro-copy p{font-size:16.5px;line-height:1.95;color:var(--text-weak)}
.intro-copy p + p{margin-top:18px}
.intro-list{display:flex;flex-direction:column;gap:14px}
.intro-item{display:flex;gap:16px;padding:22px 24px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);transition:box-shadow .22s,transform .22s,border-color .22s}
.intro-item:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);border-color:rgba(46,158,143,.4)}
.intro-item .ico{flex-shrink:0;width:40px;height:40px;border-radius:12px;background:rgba(46,158,143,.1);display:grid;place-items:center;color:var(--orbit-deep)}
.intro-item .ico svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.intro-item h3{font-size:18px;line-height:1.5;margin-bottom:6px}
.intro-item p{font-size:15px;line-height:1.85;color:var(--text-weak)}

/* ---------- 时间线 ---------- */
.timeline{position:relative;margin-top:8px}
.step{display:grid;grid-template-columns:64px 1fr;gap:26px;padding-bottom:34px;position:relative}
.step:last-child{padding-bottom:0}
.step:not(:last-child)::before{content:"";position:absolute;left:31px;top:68px;bottom:6px;width:1px;background:linear-gradient(180deg,rgba(46,158,143,.5),rgba(46,158,143,.12))}
.step-num{width:64px;height:64px;border-radius:50%;background:#fff;border:1px solid var(--line);display:grid;place-items:center;position:relative;font-family:var(--font-title);font-size:22px;color:var(--orbit-deep);font-variant-numeric:tabular-nums}
.step-num::after{content:"";position:absolute;inset:6px;border-radius:50%;border:1px dashed rgba(46,158,143,.4)}
.step-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:24px 26px;transition:box-shadow .22s,transform .22s,border-color .22s}
.step-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);border-color:rgba(46,158,143,.4)}
.step-card h3{font-size:20px;line-height:1.5;margin-bottom:10px}
.step-card p{font-size:15.5px;line-height:1.9;color:var(--text-weak)}
.step-tip{margin-top:14px;padding-top:14px;border-top:1px dashed var(--line);display:flex;gap:8px;font-size:14px;line-height:1.8;color:var(--orbit-deep)}
.step-tip svg{width:16px;height:16px;flex-shrink:0;margin-top:4px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}

/* ---------- 检查清单 ---------- */
.check-wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:start}
.checklist{display:grid;grid-template-columns:1fr 1fr;gap:12px 24px}
.checklist li{display:flex;gap:12px;align-items:flex-start;padding:16px 18px;background:#fff;border:1px solid var(--line);border-radius:12px;font-size:15px;line-height:1.7;transition:border-color .2s,background .2s}
.checklist li:hover{border-color:rgba(46,158,143,.45);background:#fff}
.checklist .tick{flex-shrink:0;width:20px;height:20px;border-radius:50%;background:rgba(46,158,143,.12);display:grid;place-items:center;margin-top:3px}
.checklist .tick svg{width:12px;height:12px;stroke:var(--orbit-deep);fill:none;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round}
.check-figure{border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-card);aspect-ratio:16/11}
.check-figure img{width:100%;height:100%;object-fit:cover}
.check-note{margin-top:16px;font-size:13.5px;line-height:1.8;color:var(--text-weak)}

/* ---------- 警示 ---------- */
.warn-card{background:#FBF1E8;border-left:4px solid var(--dust-orange);border-radius:0 var(--radius-card) var(--radius-card) 0;padding:28px 30px}
.warn-card h3{font-size:20px;line-height:1.5;margin-bottom:14px;display:flex;align-items:center;gap:10px}
.warn-card h3 svg{width:22px;height:22px;stroke:var(--dust-orange);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.warn-list{display:grid;gap:10px}
.warn-list li{display:flex;gap:10px;font-size:15px;line-height:1.85;color:#4A3A2C}
.warn-list .dash{flex-shrink:0;color:var(--dust-orange);font-weight:700}
.warn-foot{margin-top:18px;font-size:14px;line-height:1.8;color:var(--text-weak)}
.warn-foot a{color:var(--orbit-deep);border-bottom:1px solid rgba(46,158,143,.5)}
.warn-foot a:hover{color:var(--orbit)}
.mini-list{display:flex;flex-direction:column;gap:6px;margin-top:8px}
.mini-list li{font-size:15px;line-height:1.9;color:var(--text-weak);padding-left:16px;position:relative}
.mini-list li::before{content:"";position:absolute;left:0;top:13px;width:6px;height:6px;border-radius:50%;background:var(--dust-orange);opacity:.8}

/* ---------- CTA ---------- */
.cta-band{background:var(--ink-night);color:var(--moon);position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(247,245,241,.22) 1px,transparent 1px);background-size:30px 30px;opacity:.25;pointer-events:none}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;position:relative;z-index:2}
.cta-grid h2{font-size:34px;line-height:1.32;color:var(--moon)}
.cta-grid .cta-desc{margin-top:16px;font-size:16px;line-height:1.9;color:rgba(247,245,241,.74);max-width:460px}
.contact-card{background:var(--moon);color:var(--text);border-radius:var(--radius-card);padding:28px;box-shadow:var(--shadow-card)}
.contact-card h3{font-size:19px;margin-bottom:16px}
.contact-rows{display:grid;gap:12px;margin-bottom:20px}
.contact-rows .row{display:flex;justify-content:space-between;gap:16px;font-size:14.5px;padding-bottom:12px;border-bottom:1px solid var(--line)}
.contact-rows .row span:first-child{color:var(--text-weak)}
.contact-rows .row span:last-child{font-weight:500}
.contact-actions{display:flex;gap:12px;flex-wrap:wrap}
.contact-actions .btn{flex:1 1 150px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-night);color:rgba(247,245,241,.78);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:48px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand-name{font-family:var(--font-title);font-size:20px;font-weight:700;color:var(--moon)}
.brand-star{color:var(--orbit)}
.footer-desc{font-size:14px;line-height:1.9;color:rgba(247,245,241,.62);max-width:280px}
.footer-col h4{font-size:15px;font-family:var(--font-body);font-weight:700;color:var(--moon);margin-bottom:16px;letter-spacing:.04em}
.footer-col ul{display:grid;gap:10px}
.footer-col li{font-size:14px;line-height:1.7;color:rgba(247,245,241,.66)}
.footer-col a{transition:color .2s}
.footer-col a:hover{color:var(--orbit)}
.footer-bottom{border-top:1px solid rgba(247,245,241,.14);padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(247,245,241,.56)}
.to-top{display:inline-flex;align-items:center;gap:6px;color:rgba(247,245,241,.8);transition:color .2s}
.to-top:hover{color:var(--orbit)}
.to-top svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

/* ---------- 浮动 CTA ---------- */
.float-cta{position:fixed;right:24px;bottom:32px;z-index:80;display:inline-flex;align-items:center;gap:8px;height:48px;padding:0 22px;border-radius:999px;background:var(--orbit);color:#fff;font-size:15px;font-weight:500;box-shadow:0 14px 34px rgba(46,158,143,.34);opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity .25s,visibility .25s,transform .25s,background .2s}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta:hover{background:var(--orbit-deep)}
.float-cta.is-hidden{opacity:0;visibility:hidden;transform:translateY(10px)}
.float-cta svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.mobile-bar{display:none}

@media (min-width:1200px){
  .container{padding:0 24px}
}
@media (max-width:1199px){
  .container{max-width:960px}
  .nav-links{gap:20px}
  .hero-grid{gap:40px}
  .page-hero h1{font-size:38px}
}
@media (max-width:991px){
  .container{max-width:720px}
  .nav-links,.nav-cta{display:none}
  .burger{display:flex}
  .section{padding:72px 0}
  .section-title{font-size:30px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .page-hero{padding:40px 0 48px}
  .page-hero h1{font-size:34px}
  .hero-figure{aspect-ratio:16/9}
  .intro-grid,.check-wrap,.cta-grid{grid-template-columns:1fr;gap:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-grid h2{font-size:30px}
}
@media (max-width:767px){
  .container{max-width:100%;padding:0 20px}
  body{padding-bottom:72px}
  .topbar-left .sep,.topbar-left .hide-sm,.topbar-right a:last-child{display:none}
  .section{padding:56px 0}
  .section-title{font-size:26px}
  .section-head{margin-bottom:28px}
  .page-hero h1{font-size:30px}
  .hero-lead{font-size:16.5px}
  .step{grid-template-columns:48px 1fr;gap:16px}
  .step-num{width:48px;height:48px;font-size:18px}
  .step:not(:last-child)::before{left:23px;top:52px}
  .step-card{padding:18px}
  .checklist{grid-template-columns:1fr}
  .warn-card{padding:22px 20px}
  .float-cta{display:none}
  .mobile-bar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:85;height:56px;padding-bottom:env(safe-area-inset-bottom);background:#fff;border-top:1px solid var(--line);box-shadow:0 -6px 20px rgba(20,16,31,.08)}
  .mobile-bar a{display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:500;height:56px}
  .mobile-bar .mb-main{flex:0 0 60%;background:var(--orbit);color:#fff}
  .mobile-bar .mb-sub{flex:0 0 40%;color:var(--orbit-deep);border-left:1px solid var(--line)}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
}
@media (max-width:479px){
  .page-hero h1{font-size:27px}
  .section-title{font-size:23px}
  .btn{height:46px;padding:0 20px;font-size:15px}
  .contact-actions{flex-direction:column}
  .contact-actions .btn{flex:1 1 auto;width:100%}
  .step-card h3{font-size:18px}
}

/* roulang page: category4 */
:root{
  --ink-900:#171225;
  --ink-800:#1E1830;
  --teal:#2E9E8F;
  --teal-dark:#237A6F;
  --orange:#D9823B;
  --moon:#F7F5F1;
  --cloud:#EFEBE3;
  --white:#FFFFFF;
  --text:#1E1B26;
  --muted:#6E6878;
  --line:#DED8CE;
  --error:#C24A3A;
  --success:#2E9E8F;
  --radius-card:16px;
  --radius-img:14px;
  --radius-btn:12px;
  --radius-input:10px;
  --shadow-sm:0 12px 32px rgba(20,16,31,.08);
  --shadow-md:0 18px 44px rgba(20,16,31,.14);
  --font-serif:"Noto Serif SC","Songti SC","STSong",serif;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --section-y:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background:var(--moon);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--teal);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--teal-dark)}
button{font-family:inherit;font-size:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-family:var(--font-serif);font-weight:700;letter-spacing:.015em;color:var(--ink-900);line-height:1.3}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--orange);outline-offset:3px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:var(--section-y) 0}
.section-head{margin-bottom:40px}
.section-head h2{font-size:34px;line-height:1.3}
.section-head p{margin-top:14px;color:var(--muted);font-size:16.5px;max-width:680px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.08em;color:var(--teal-dark);
  font-family:var(--font-sans);font-weight:600;
}
.star-dot{
  width:14px;height:14px;display:inline-block;color:var(--teal);
}
.star-dot svg{width:14px;height:14px;display:block}

/* ============ 顶部信息条 ============ */
.topbar{
  background:var(--ink-900);
  color:rgba(247,245,241,.78);
  font-size:12px;
  height:34px;
  display:flex;
  align-items:center;
}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%}
.topbar-left{display:flex;align-items:center;gap:10px;min-width:0}
.topbar-domain{color:#F7F5F1;font-weight:600;letter-spacing:.02em;font-variant-numeric:tabular-nums}
.topbar-sep{width:1px;height:12px;background:rgba(247,245,241,.28);display:inline-block}
.topbar-note{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-right{display:flex;align-items:center;gap:18px;flex:none}
.topbar-right a{color:rgba(247,245,241,.86);font-size:12px}
.topbar-right a:hover{color:var(--teal)}

/* ============ 主导航 ============ */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(247,245,241,.96);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 28px rgba(20,16,31,.09)}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  height:68px;transition:height .22s ease;
}
.site-header.is-scrolled .nav-inner{height:60px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink-900);flex:none}
.brand:hover{color:var(--ink-900)}
.brand-star{width:22px;height:22px;color:var(--teal);flex:none}
.brand-name{font-family:var(--font-serif);font-weight:700;font-size:23px;letter-spacing:.02em;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:28px;margin-left:auto}
.main-nav a{
  position:relative;
  font-size:15px;font-weight:500;color:var(--text);
  padding:6px 0;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--teal);transform:scaleX(0);transform-origin:left center;
  transition:transform .22s ease;
}
.main-nav a:hover{color:var(--teal-dark)}
.main-nav a:hover::after{transform:scaleX(1)}
.main-nav a.is-active{color:var(--ink-900);font-weight:600}
.main-nav a.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:12px;flex:none}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;
  padding:12px 22px;
  border:1px solid transparent;
  cursor:pointer;
  transition:background-color .2s ease,color .2s ease,transform .2s ease,border-color .2s ease,box-shadow .2s ease;
  text-align:center;
  line-height:1.4;
}
.btn-primary{background:var(--teal);color:#fff;border-color:var(--teal)}
.btn-primary:hover{background:var(--teal-dark);border-color:var(--teal-dark);color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--ink-900);border-color:var(--ink-900)}
.btn-ghost:hover{background:var(--ink-900);color:#fff;transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-ghost-light{background:transparent;color:#F7F5F1;border-color:rgba(247,245,241,.45)}
.btn-ghost-light:hover{background:#F7F5F1;color:var(--ink-900);border-color:#F7F5F1;transform:translateY(-1px)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}
.hamburger{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line);background:var(--white);
  align-items:center;justify-content:center;cursor:pointer;
  transition:border-color .2s ease,background-color .2s ease;
}
.hamburger:hover{border-color:var(--teal);background:#fff}
.hamburger span{
  display:block;width:18px;height:2px;background:var(--ink-900);border-radius:2px;position:relative;
}
.hamburger span::before,.hamburger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink-900);border-radius:2px;
}
.hamburger span::before{top:-6px}
.hamburger span::after{top:6px}

/* ============ 移动抽屉 ============ */
.drawer-overlay{
  position:fixed;inset:0;background:rgba(20,16,31,.5);
  opacity:0;visibility:hidden;transition:opacity .26s ease,visibility .26s ease;z-index:90;
}
.drawer-overlay.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:82%;max-width:360px;
  background:var(--moon);z-index:100;
  transform:translateX(100%);transition:transform .28s ease;
  display:flex;flex-direction:column;padding:22px 22px 28px;
  overflow-y:auto;
  box-shadow:-18px 0 44px rgba(20,16,31,.18);
}
.drawer.is-open{transform:translateX(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:18px;border-bottom:1px solid var(--line)}
.drawer-brand{display:inline-flex;align-items:center;gap:9px;font-family:var(--font-serif);font-weight:700;font-size:19px;color:var(--ink-900)}
.drawer-close{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:#fff;
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
}
.drawer-close:hover{border-color:var(--teal)}
.drawer-nav{margin:12px 0 0;display:flex;flex-direction:column}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  height:56px;font-size:18px;color:var(--text);font-weight:500;
  border-bottom:1px solid var(--line);
}
.drawer-nav a.is-active{color:var(--teal-dark);font-weight:600}
.drawer-nav a:hover{color:var(--teal-dark)}
.drawer-meta{margin-top:auto;padding-top:22px}
.drawer-meta p{font-size:13px;color:var(--muted);line-height:1.8}
.drawer-meta .meta-domain{color:var(--ink-900);font-weight:600;font-variant-numeric:tabular-nums}

/* ============ 分类 Hero ============ */
.cat-hero{
  background:var(--cloud);
  border-bottom:1px solid var(--line);
  padding:46px 0 60px;
  position:relative;
  overflow:hidden;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(23,18,37,.16) 1px,transparent 1px);
  background-size:26px 26px;opacity:.35;pointer-events:none;
}
.cat-hero-grid{
  position:relative;display:grid;grid-template-columns:1.4fr .6fr;gap:48px;align-items:center;
}
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:var(--muted);margin-bottom:18px;
}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--teal-dark)}
.breadcrumb .sep{color:#b9b2a6}
.breadcrumb .current{color:var(--ink-900);font-weight:600}
.cat-hero h1{
  font-size:42px;line-height:1.22;margin-bottom:18px;
  color:var(--ink-900);
}
.cat-hero .lead{
  font-size:19px;line-height:1.85;color:#4a4457;max-width:600px;
}
.cat-hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:999px;
  background:rgba(255,255,255,.8);
  border:1px solid var(--line);
  font-size:13px;color:#4a4457;font-weight:500;
}
.tag .dot{width:6px;height:6px;border-radius:50%;background:var(--teal);display:inline-block}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--radius-img);
  border:1px solid rgba(23,18,37,.12);
  box-shadow:var(--shadow-sm);
}
.hero-visual::after{
  content:"";position:absolute;right:-14px;bottom:-14px;width:88px;height:88px;
  border-right:2px solid var(--teal);border-bottom:2px solid var(--teal);
  border-radius:0 0 14px 0;opacity:.55;pointer-events:none;
}

/* ============ FAQ 布局 ============ */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start}
.faq-aside{position:sticky;top:104px}
.faq-aside h2{font-size:32px;line-height:1.3;margin-bottom:16px}
.faq-aside > p{color:var(--muted);font-size:15.5px;line-height:1.9;max-width:320px}
.aside-card{
  margin-top:28px;background:var(--white);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:22px;box-shadow:var(--shadow-sm);
}
.aside-card h3{font-size:17px;margin-bottom:10px}
.aside-card p{font-size:14px;color:var(--muted);line-height:1.85}
.aside-card .aside-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;margin-top:14px}
.aside-card .aside-link svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;transition:transform .2s ease}
.aside-card .aside-link:hover svg{transform:translateX(3px)}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-h{margin:0}
.faq-q{
  width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:20px;
  padding:22px 4px 22px 0;background:none;border:0;cursor:pointer;text-align:left;
  font-size:17.5px;font-weight:600;color:var(--ink-900);line-height:1.6;
  font-family:var(--font-sans);
  transition:color .2s ease;
}
.faq-q:hover{color:var(--teal-dark)}
.faq-icon{
  position:relative;width:22px;height:22px;flex:none;margin-top:4px;
  border-radius:50%;border:1px solid var(--line);background:#fff;
  transition:background-color .22s ease,border-color .22s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--teal-dark);
  transform:translate(-50%,-50%);transition:transform .22s ease,opacity .22s ease;
}
.faq-icon::before{width:10px;height:1.6px}
.faq-icon::after{width:1.6px;height:10px}
.faq-item.is-open .faq-icon{background:var(--teal);border-color:var(--teal)}
.faq-item.is-open .faq-icon::before,.faq-item.is-open .faq-icon::after{background:#fff}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) scaleY(0);opacity:0}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .3s ease,padding .3s ease;
  padding:0;
}
.faq-item.is-open .faq-a{max-height:520px;padding-bottom:22px}
.faq-a p{font-size:15.5px;line-height:1.95;color:#4a4457;max-width:640px;padding-right:32px}
.faq-a p + p{margin-top:12px}

/* ============ 联系与路径 ============ */
.contact-section{background:var(--cloud);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.contact-visual{border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow-sm)}
.contact-visual img{width:100%;aspect-ratio:16/10;object-fit:cover}
.contact-body{padding:24px}
.contact-body h3{font-size:20px;margin-bottom:10px}
.contact-body p{font-size:14.5px;color:var(--muted);line-height:1.9}
.contact-facts{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:18px}
.fact{
  border:1px solid var(--line);border-radius:12px;padding:14px 16px;background:var(--moon);
}
.fact dt{font-size:12.5px;color:var(--muted);letter-spacing:.03em}
.fact dd{margin:6px 0 0;font-size:14.5px;font-weight:600;color:var(--ink-900)}
.path-panel{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);padding:28px;box-shadow:var(--shadow-sm)}
.path-panel h3{font-size:22px;margin-bottom:10px}
.path-panel > p{font-size:15px;color:var(--muted);line-height:1.9;margin-bottom:22px}
.path-list{display:flex;flex-direction:column;gap:12px;margin-bottom:24px}
.path-link{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:15px 18px;border-radius:12px;border:1px solid var(--line);
  background:var(--moon);color:var(--ink-900);font-weight:600;font-size:15.5px;
  transition:border-color .2s ease,background-color .2s ease,transform .2s ease;
}
.path-link small{display:block;font-weight:400;font-size:13px;color:var(--muted);margin-top:2px}
.path-link svg{width:16px;height:16px;fill:none;stroke:var(--teal);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex:none;transition:transform .2s ease}
.path-link:hover{border-color:var(--teal);background:#fff;transform:translateY(-1px);color:var(--ink-900)}
.path-link:hover svg{transform:translateX(3px)}
.path-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ============ 深色 CTA 带 ============ */
.cta-band{
  background:var(--ink-900);
  color:#F7F5F1;
  padding:72px 0;
  position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 82% 18%,rgba(46,158,143,.22),transparent 55%),
             radial-gradient(circle at 12% 82%,rgba(217,130,59,.14),transparent 50%);
  pointer-events:none;
}
.cta-inner{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center}
.cta-inner h2{color:#F7F5F1;font-size:34px;line-height:1.3;margin-bottom:14px}
.cta-inner p{color:rgba(247,245,241,.76);font-size:16px;line-height:1.9;max-width:520px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;right:24px;bottom:32px;z-index:80;
  display:inline-flex;align-items:center;gap:8px;
  height:48px;padding:0 24px;border-radius:999px;
  background:var(--teal);color:#fff;font-size:15px;font-weight:600;
  box-shadow:0 14px 32px rgba(46,158,143,.34);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .28s ease,transform .28s ease,visibility .28s ease,background-color .2s ease;
}
.float-cta svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.float-cta:hover{background:var(--teal-dark);color:#fff;transform:translateY(-2px)}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta.is-hidden{opacity:0;visibility:hidden;transform:translateY(10px)}

.mobile-cta{display:none}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-900);color:rgba(247,245,241,.72);padding:64px 0 0;position:relative;z-index:5}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-brand{display:flex;align-items:center;gap:9px;margin-bottom:16px}
.brand-star{color:var(--teal)}
.footer-brand-name{font-family:var(--font-serif);font-size:20px;font-weight:700;color:#F7F5F1;letter-spacing:.02em}
.footer-desc{font-size:14px;line-height:1.9;color:rgba(247,245,241,.62);max-width:280px}
.footer-col h4{font-size:15px;color:#F7F5F1;margin-bottom:16px;font-family:var(--font-sans);font-weight:600;letter-spacing:.04em}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col li{font-size:14px;line-height:1.7;color:rgba(247,245,241,.62)}
.footer-col a{color:rgba(247,245,241,.72);font-size:14px}
.footer-col a:hover{color:var(--teal)}
.footer-bottom{
  border-top:1px solid rgba(247,245,241,.14);
  padding:22px 0 26px;
  display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:14px;
  font-size:13px;color:rgba(247,245,241,.55);
}
.to-top{display:inline-flex;align-items:center;gap:6px;color:rgba(247,245,241,.75);font-size:13px}
.to-top svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;transition:transform .2s ease}
.to-top:hover{color:var(--teal)}
.to-top:hover svg{transform:translateY(-3px)}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  :root{--section-y:80px}
  .container{max-width:960px}
  .cat-hero h1{font-size:38px}
  .faq-layout{gap:40px}
  .float-cta{right:16px;bottom:24px}
}
@media (max-width:991px){
  :root{--section-y:72px}
  .container{max-width:720px}
  .main-nav{display:none}
  .nav-actions .btn-sm{display:none}
  .hamburger{display:inline-flex}
  .cat-hero-grid{grid-template-columns:1fr;gap:32px}
  .cat-hero h1{font-size:34px}
  .hero-visual{order:-1;max-width:440px}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .faq-aside{position:static}
  .faq-aside > p{max-width:none}
  .contact-grid{grid-template-columns:1fr;gap:28px}
  .cta-inner{grid-template-columns:1fr;gap:26px}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  :root{--section-y:56px}
  .container{max-width:100%;padding:0 20px}
  body{font-size:16px;padding-bottom:72px}
  .topbar-note,.topbar-sep{display:none}
  .topbar-right a:last-child{display:none}
  .cat-hero{padding:34px 0 44px}
  .cat-hero h1{font-size:30px}
  .cat-hero .lead{font-size:17px}
  .section-head h2{font-size:26px}
  .faq-aside h2{font-size:26px}
  .faq-q{font-size:16px;padding:18px 0}
  .faq-a p{padding-right:8px;font-size:15px}
  .cta-inner h2{font-size:26px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .float-cta{display:none}
  .mobile-cta{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:85;
    height:calc(56px + env(safe-area-inset-bottom));
    padding-bottom:env(safe-area-inset-bottom);
    background:#fff;border-top:1px solid var(--line);
    box-shadow:0 -8px 24px rgba(20,16,31,.08);
  }
  .mobile-cta a{
    display:inline-flex;align-items:center;justify-content:center;
    font-size:15px;font-weight:600;
  }
  .mobile-cta .m-primary{flex:0 0 60%;background:var(--teal);color:#fff}
  .mobile-cta .m-primary:hover{background:var(--teal-dark);color:#fff}
  .mobile-cta .m-secondary{flex:0 0 40%;color:var(--ink-900)}
}
@media (max-width:519px){
  .cat-hero h1{font-size:26px}
  .brand-name{font-size:19px}
  .brand-star{width:18px;height:18px}
  .contact-facts{grid-template-columns:1fr}
  .faq-aside h2{font-size:24px}
  .path-panel{padding:22px}
  .btn{width:100%}
  .cta-actions{width:100%}
  .path-actions .btn{width:100%}
}