/* roulang page: index */
:root{
  --primary:#F0562B;
  --primary-hover:#D9451F;
  --primary-press:#BF3A18;
  --tint:#FDEDE8;
  --tint-strong:#F7CFC2;
  --ink:#16191E;
  --cyan:#0FB5A6;
  --cyan-tint:#E3F8F5;
  --bg:#FBF8F4;
  --card:#FFFFFF;
  --sub-bg:#F4EFE8;
  --line:#E9E3DB;
  --txt:#1A1D21;
  --txt-2:#5A6069;
  --txt-3:#8A9099;
  --success:#16A34A;
  --warn:#D97706;
  --error:#DC2626;
  --radius-card:16px;
  --radius-lg:20px;
  --radius-btn:10px;
  --shadow-sm:0 1px 2px rgba(20,24,29,.06);
  --shadow-hover:0 12px 28px -12px rgba(20,24,29,.18);
  --shadow-nav:0 6px 18px -10px rgba(20,24,29,.22);
  --maxw:1200px;
  --ease:cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:132px;}
body{
  margin:0;padding:0;background:var(--bg);color:var(--txt);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;line-height:1.8;letter-spacing:0;overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,p,ul,ol,figure,dl,dd{margin:0;padding:0;}
ul,ol{list-style:none;}
img{display:block;max-width:100%;border:0;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input,select,textarea{font:inherit;color:inherit;}
table{border-collapse:collapse;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ===== 通用组件 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.02em;white-space:nowrap;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-lg{height:48px;padding:0 28px;font-size:16px;}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 16px -10px rgba(240,86,43,.9);}
.btn-primary:hover{background:var(--primary-hover);transform:translateY(-1px);}
.btn-primary:active{background:var(--primary-press);transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--txt);border:1px solid #D9D2C8;}
.btn-ghost:hover{color:var(--primary);border-color:var(--primary);transform:translateY(-1px);}
.btn-light{background:#fff;color:var(--ink);}
.btn-light:hover{background:var(--tint);color:var(--primary-press);transform:translateY(-1px);}
.btn-outline-white{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.4);}
.btn-outline-white:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.7);}
.btn-sm{height:36px;padding:0 16px;font-size:14px;border-radius:9px;}

.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
  border-radius:999px;font-size:12.5px;font-weight:600;letter-spacing:.02em;
  background:var(--tint);color:var(--primary-press);
}
.badge-cyan{background:var(--cyan-tint);color:#0A8579;}
.badge-line{background:transparent;border:1px solid var(--line);color:var(--txt-2);font-weight:500;}

.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);
  transition:color .2s var(--ease);
}
.link-arrow svg{transition:transform .2s var(--ease);}
.link-arrow:hover{color:var(--primary-press);}
.link-arrow:hover svg{transform:translateX(3px);}

.section{padding:80px 0;}
.section-tight{padding:56px 0;}
.section-sub{background:var(--sub-bg);}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head h2{font-size:clamp(24px,2.6vw,32px);line-height:1.3;font-weight:700;letter-spacing:.01em;color:var(--ink);}
.section-head p{margin-top:12px;font-size:15.5px;line-height:1.8;color:var(--txt-2);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:var(--primary);letter-spacing:.04em;margin-bottom:14px;
}
.eyebrow::before{content:"";width:20px;height:2px;background:var(--primary);border-radius:2px;}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:50;background:rgba(251,248,244,.95);
  border-bottom:1px solid transparent;backdrop-filter:blur(10px);
  transition:background-color .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.site-header.is-scrolled{background:#fff;border-bottom-color:var(--line);box-shadow:var(--shadow-nav);}
.header-top-inner{display:flex;align-items:center;gap:18px;height:64px;transition:height .2s var(--ease);}
.site-header.is-scrolled .header-top-inner{height:56px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex-shrink:0;
  background:var(--primary);color:#fff;display:grid;place-items:center;
  font-size:16px;font-weight:700;letter-spacing:.02em;
  box-shadow:0 6px 14px -8px rgba(240,86,43,.95);
}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.01em;color:var(--ink);white-space:nowrap;}
.header-search{
  flex:1;display:flex;align-items:center;gap:6px;height:40px;max-width:340px;
  padding:0 6px 0 14px;background:#fff;border:1px solid var(--line);border-radius:10px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.header-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px var(--tint);}
.header-search input{flex:1;min-width:0;border:0;outline:0;background:transparent;font-size:14px;}
.header-search input::placeholder{color:var(--txt-3);}
.header-search button{
  width:30px;height:30px;border-radius:8px;display:grid;place-items:center;
  background:var(--tint);color:var(--primary);transition:background-color .2s var(--ease);
}
.header-search button:hover{background:var(--tint-strong);}
.header-trends{display:flex;align-items:center;gap:8px;flex-shrink:0;}
.header-trends a{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;
  font-size:12.5px;color:var(--txt-2);border:1px solid var(--line);background:#fff;
  transition:color .2s var(--ease),border-color .2s var(--ease),background-color .2s var(--ease);
}
.header-trends a:hover{color:var(--primary-press);border-color:var(--tint-strong);background:var(--tint);}
.header-cta{flex-shrink:0;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;place-items:center;
  border:1px solid var(--line);background:#fff;color:var(--ink);
}
.nav-toggle:hover{border-color:var(--primary);color:var(--primary);}

.channel-bar{border-top:1px solid transparent;transition:border-color .2s var(--ease);}
.site-header.is-scrolled .channel-bar{border-top-color:var(--line);}
.channel-inner{display:flex;align-items:center;gap:28px;height:44px;overflow-x:auto;scrollbar-width:none;}
.channel-inner::-webkit-scrollbar{display:none;}
.site-header.is-scrolled .channel-inner{height:38px;}
.channel-link{
  position:relative;display:inline-flex;align-items:center;height:100%;flex-shrink:0;
  font-size:14.5px;color:var(--txt-2);letter-spacing:.01em;white-space:nowrap;
  transition:color .2s var(--ease);
}
.channel-link::after{
  content:"";position:absolute;left:0;bottom:6px;width:0;height:2px;border-radius:2px;
  background:var(--primary);transition:width .2s var(--ease);
}
.channel-link:hover{color:var(--txt);}
.channel-link:hover::after{width:100%;}
.channel-link.is-active{color:var(--primary);font-weight:600;}
.channel-link.is-active::after{width:100%;}

/* 移动端抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(22,25,30,.5);opacity:0;visibility:hidden;
  transition:opacity .22s var(--ease),visibility .22s var(--ease);z-index:60;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,340px);background:#fff;z-index:61;
  transform:translateX(100%);transition:transform .24s var(--ease);
  display:flex;flex-direction:column;padding:20px;overflow-y:auto;
  box-shadow:-12px 0 32px -18px rgba(20,24,29,.4);
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-title{font-size:15px;font-weight:700;color:var(--ink);}
.drawer-close{width:40px;height:40px;border-radius:10px;display:grid;place-items:center;border:1px solid var(--line);color:var(--txt-2);}
.drawer-close:hover{color:var(--primary);border-color:var(--primary);}
.drawer-search{display:flex;align-items:center;gap:6px;height:44px;padding:0 6px 0 14px;border:1px solid var(--line);border-radius:10px;background:var(--bg);margin-bottom:20px;}
.drawer-search input{flex:1;min-width:0;border:0;outline:0;background:transparent;font-size:14px;}
.drawer-search button{width:32px;height:32px;border-radius:8px;background:var(--tint);color:var(--primary);display:grid;place-items:center;}
.drawer-label{font-size:12.5px;color:var(--txt-3);letter-spacing:.06em;margin-bottom:10px;}
.drawer-nav{display:flex;flex-direction:column;gap:2px;margin-bottom:22px;}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  min-height:46px;padding:0 12px;border-radius:10px;font-size:15px;color:var(--txt);
  transition:background-color .2s var(--ease),color .2s var(--ease);
}
.drawer-nav a:hover{background:var(--tint);color:var(--primary-press);}
.drawer-nav a.is-active{background:var(--tint);color:var(--primary);font-weight:600;}
.drawer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:24px;}
.drawer-tags a{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;
  font-size:13px;border:1px solid var(--line);color:var(--txt-2);background:var(--bg);
}
.drawer-cta{margin-top:auto;}

/* ===== Hero ===== */
.hero{position:relative;overflow:hidden;padding:64px 0 76px;background:var(--bg);}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(22,25,30,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(22,25,30,.04) 1px,transparent 1px);
  background-size:8px 8px;
  -webkit-mask-image:radial-gradient(circle at 30% 20%,#000 0%,transparent 62%);
  mask-image:radial-gradient(circle at 30% 20%,#000 0%,transparent 62%);
}
.hero-inner{position:relative;display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;border-radius:999px;
  background:#fff;border:1px solid var(--line);font-size:13px;color:var(--txt-2);margin-bottom:20px;
}
.hero-tag i{width:7px;height:7px;border-radius:50%;background:var(--cyan);display:inline-block;}
.hero h1{
  font-size:clamp(28px,4vw,44px);line-height:1.25;font-weight:700;letter-spacing:.01em;color:var(--ink);
}
.hero h1 .hl{color:var(--primary);}
.hero-sub{margin-top:18px;font-size:17px;line-height:1.8;color:var(--txt-2);max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}
.hero-badges li{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:999px;
  background:#fff;border:1px solid var(--line);font-size:13px;color:var(--txt-2);
}
.hero-badges svg{color:var(--cyan);flex-shrink:0;}
.hero-media{position:relative;border-radius:var(--radius-lg);overflow:hidden;aspect-ratio:4/3;background:#E9E3DB;box-shadow:var(--shadow-hover);}
.hero-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.hero-media:hover img{transform:scale(1.03);}
.hero-corner{
  position:absolute;right:0;bottom:0;width:104px;height:104px;
  background:var(--primary);opacity:.92;
  clip-path:polygon(100% 0,100% 100%,0 100%);
  display:flex;align-items:flex-end;justify-content:flex-end;padding:12px;
}
.hero-corner span{font-size:12px;font-weight:600;color:#fff;letter-spacing:.08em;}

/* ===== 三步上手 ===== */
.steps-wrap{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;position:relative;}
.step-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 24px 24px;box-shadow:var(--shadow-sm);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--tint-strong);}
.step-num{
  display:block;font-size:48px;line-height:1;font-weight:700;color:var(--primary);
  letter-spacing:-.02em;font-variant-numeric:tabular-nums;margin-bottom:14px;
}
.step-card h3{font-size:20px;font-weight:600;color:var(--ink);line-height:1.45;}
.step-card p{margin-top:10px;font-size:15px;line-height:1.75;color:var(--txt-2);}
.step-line{
  position:absolute;top:52px;height:0;border-top:2px dashed var(--tint-strong);width:calc(100% / 3 - 60px);
  pointer-events:none;
}
.step-line::after{
  content:"";position:absolute;right:-5px;top:-6px;width:10px;height:10px;border-radius:50%;
  background:var(--cyan);
}

/* ===== 案例证明 ===== */
.case-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:24px;align-items:stretch;}
.case-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.case-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--tint-strong);}
.case-card-lg .case-figure{position:relative;aspect-ratio:16/10;background:#E9E3DB;overflow:hidden;}
.case-figure img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.case-card:hover .case-figure img{transform:scale(1.03);}
.case-figure .badge{position:absolute;left:16px;top:16px;background:#fff;color:var(--primary-press);box-shadow:var(--shadow-sm);}
.case-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.case-body h3{font-size:19px;font-weight:600;line-height:1.45;color:var(--ink);}
.case-body p{font-size:14.5px;line-height:1.75;color:var(--txt-2);}
.case-meta{display:flex;align-items:flex-end;gap:20px;margin-top:auto;padding-top:6px;flex-wrap:wrap;}
.case-stat strong{
  display:block;font-size:30px;line-height:1.1;font-weight:700;color:var(--cyan);
  font-variant-numeric:tabular-nums;letter-spacing:-.01em;
}
.case-stat span{font-size:12.5px;color:var(--txt-3);}
.case-side{display:grid;gap:24px;}
.case-card-sm{flex-direction:row;align-items:stretch;}
.case-card-sm .case-body{padding:22px;gap:10px;}
.case-card-sm .case-thumb{width:132px;flex-shrink:0;background:#E9E3DB;overflow:hidden;}
.case-card-sm .case-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.case-card-sm:hover .case-thumb img{transform:scale(1.04);}
.case-card-sm h3{font-size:16.5px;line-height:1.45;}
.case-card-sm p{font-size:13.5px;line-height:1.7;}

/* ===== 最新资讯 ===== */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;}
.news-head h2{font-size:clamp(24px,2.6vw,32px);font-weight:700;line-height:1.3;color:var(--ink);}
.news-head p{margin-top:10px;font-size:15px;color:var(--txt-2);}
.news-list{display:grid;grid-template-columns:1fr 1fr;gap:0 48px;}
.news-item{border-bottom:1px solid var(--line);}
.news-item a{
  display:grid;grid-template-columns:152px 1fr;gap:18px;padding:20px 12px 20px 12px;border-radius:12px;
  transition:background-color .2s var(--ease),transform .2s var(--ease);
}
.news-item a:hover{background:#FBF8F4;transform:translateX(2px);}
.news-thumb{
  width:152px;aspect-ratio:160/108;border-radius:12px;overflow:hidden;background:#E9E3DB;
  display:grid;place-items:center;
}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.news-item a:hover .news-thumb img{transform:scale(1.04);}
.news-thumb .ph{color:#B9AF9F;}
.news-text h3{
  font-size:17px;font-weight:600;line-height:1.5;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .2s var(--ease);
}
.news-item a:hover .news-text h3{color:var(--primary-press);}
.news-text p{
  margin-top:8px;font-size:14px;line-height:1.7;color:var(--txt-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{display:flex;align-items:center;gap:12px;margin-top:12px;flex-wrap:wrap;}
.news-foot .date{font-size:12.5px;color:var(--txt-3);font-variant-numeric:tabular-nums;}
.news-foot .go{margin-left:auto;color:var(--txt-3);transition:color .2s var(--ease),transform .2s var(--ease);}
.news-item a:hover .news-foot .go{color:var(--primary);transform:translateX(2px);}
.news-empty{
  min-height:320px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;
  border:2px dashed var(--line);border-radius:var(--radius-lg);background:#fff;text-align:center;padding:40px 24px;
}
.news-empty .ico{
  width:96px;height:96px;border-radius:22px;border:2px dashed var(--line);
  display:grid;place-items:center;color:var(--txt-3);background:var(--bg);
}
.news-empty p{font-size:14px;color:var(--txt-3);}

/* ===== FAQ ===== */
.faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start;}
.faq-aside h2{font-size:clamp(24px,2.6vw,32px);font-weight:700;line-height:1.3;color:var(--ink);}
.faq-aside p{margin-top:14px;font-size:15px;line-height:1.8;color:var(--txt-2);}
.faq-aside .link-arrow{margin-top:20px;}
.faq-list{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;text-align:left;font-size:17px;font-weight:600;color:var(--ink);line-height:1.5;
  transition:color .2s var(--ease),background-color .2s var(--ease);
}
.faq-q:hover{color:var(--primary);background:#FDFCFA;}
.faq-item.is-open .faq-q{color:var(--primary);}
.faq-ico{
  flex-shrink:0;width:22px;height:22px;border-radius:50%;border:1.5px solid currentColor;
  display:grid;place-items:center;position:relative;color:var(--txt-3);transition:transform .22s var(--ease),color .2s var(--ease);
}
.faq-item.is-open .faq-ico{color:var(--primary);transform:rotate(45deg);}
.faq-ico::before,.faq-ico::after{content:"";position:absolute;background:currentColor;border-radius:2px;}
.faq-ico::before{width:10px;height:1.5px;}
.faq-ico::after{width:1.5px;height:10px;}
.faq-a{display:none;padding:0 24px 22px;font-size:15px;line-height:1.75;color:var(--txt-2);max-width:720px;}
.faq-item.is-open .faq-a{display:block;}

/* ===== CTA ===== */
.cta-band{
  background:var(--ink);border-radius:var(--radius-lg);padding:52px 56px;color:#F5F1EA;
  display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(240,86,43,.28),transparent 68%);pointer-events:none;
}
.cta-left{position:relative;z-index:1;}
.cta-left h2{font-size:clamp(24px,2.6vw,32px);font-weight:700;line-height:1.3;color:#fff;}
.cta-left p{margin-top:14px;font-size:15.5px;line-height:1.8;color:#A9B0B8;max-width:420px;}
.cta-points{margin-top:22px;display:grid;gap:10px;}
.cta-points li{display:flex;align-items:center;gap:10px;font-size:14.5px;color:#E7E2DA;}
.cta-points svg{color:var(--cyan);flex-shrink:0;}
.cta-form{
  position:relative;z-index:1;background:rgba(255,255,255,.045);border:1px solid rgba(255,255,255,.1);
  border-radius:16px;padding:26px;display:grid;gap:16px;
}
.field label{display:block;font-size:13.5px;color:#A9B0B8;margin-bottom:8px;}
.field input,.field select{
  width:100%;height:44px;padding:0 14px;border-radius:10px;background:#fff;color:var(--ink);
  border:1px solid transparent;outline:none;font-size:14.5px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field input:focus,.field select:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(240,86,43,.24);}
.cta-form .btn{width:100%;height:48px;}
.form-hint{font-size:12.5px;color:#8A9099;line-height:1.6;}

/* ===== 页脚 ===== */
.site-footer{background:var(--ink);color:#F5F1EA;margin-top:80px;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.footer-brand .brand-text{color:#fff;}
.footer-brand .brand-mark{box-shadow:none;}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:#A9B0B8;max-width:300px;}
.footer-license{margin-top:16px;font-size:12.5px;color:#8A9099;}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;letter-spacing:.04em;margin-bottom:16px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:#A9B0B8;transition:color .2s var(--ease);}
.footer-col a:hover{color:var(--primary);}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:#A9B0B8;line-height:1.7;}
.footer-contact li span:first-child{color:#6E757D;flex-shrink:0;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8A9099;
}
.footer-bottom a{color:#8A9099;}
.footer-bottom a:hover{color:var(--primary);}

/* 回到顶部 */
.back-top{
  position:fixed;right:24px;bottom:28px;width:44px;height:44px;border-radius:50%;
  display:grid;place-items:center;background:#fff;border:1px solid var(--primary);color:var(--primary);
  box-shadow:var(--shadow-hover);opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s var(--ease),background-color .2s var(--ease);
  z-index:40;
}
.back-top.is-show{opacity:1;visibility:visible;transform:translateY(0);}
.back-top:hover{background:var(--primary);color:#fff;}

/* ===== 响应式 ===== */
@media (max-width:1199px){
  .header-trends a:nth-child(n+3){display:none;}
}
@media (max-width:1023px){
  .header-search,.header-trends,.header-cta{display:none;}
  .nav-toggle{display:grid;}
  .header-top-inner{height:60px;gap:12px;}
  .hero{padding:44px 0 56px;}
  .hero-inner{grid-template-columns:1fr;gap:36px;}
  .hero-sub{font-size:16px;}
  .section{padding:64px 0;}
  .steps-wrap{grid-template-columns:1fr;gap:16px;}
  .step-line{display:none;}
  .step-card{padding-left:64px;}
  .step-num{position:absolute;left:24px;top:26px;font-size:34px;margin:0;}
  .case-grid{grid-template-columns:1fr;gap:20px;}
  .case-card-sm{flex-direction:row;}
  .news-list{grid-template-columns:1fr;gap:0;}
  .faq-grid{grid-template-columns:1fr;gap:28px;}
  .cta-band{grid-template-columns:1fr;gap:32px;padding:36px 28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:640px){
  .container{padding:0 20px;}
  .brand-text{font-size:15px;}
  .hero h1{font-size:28px;}
  .hero-actions{gap:12px;}
  .hero-actions .btn{flex:1;min-width:140px;}
  .section{padding:52px 0;}
  .news-item a{grid-template-columns:104px 1fr;gap:14px;padding:16px 8px;}
  .news-thumb{width:104px;border-radius:10px;}
  .news-text h3{font-size:15.5px;}
  .news-text p{font-size:13px;-webkit-line-clamp:2;}
  .case-body{padding:20px;}
  .case-card-sm .case-thumb{width:104px;}
  .faq-q{padding:18px 18px;font-size:16px;}
  .faq-a{padding:0 18px 18px;font-size:14.5px;}
  .cta-band{padding:28px 20px;border-radius:16px;}
  .cta-form{padding:20px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .site-footer{padding-top:48px;margin-top:56px;}
  .back-top{right:16px;bottom:18px;}
}

/* roulang page: category1 */
:root{
    --brand:#F0562B;
    --brand-hover:#D9451F;
    --brand-active:#BF3A18;
    --brand-tint:#FDEDE8;
    --ink:#16191E;
    --ink-2:#1A1D21;
    --text-2:#5A6069;
    --text-3:#8A9099;
    --paper:#FBF8F4;
    --card:#FFFFFF;
    --sub:#F4EFE8;
    --line:#E9E3DB;
    --cyan:#0FB5A6;
    --ok:#16A34A;
    --warn:#D97706;
    --err:#DC2626;
    --r-card:16px;
    --r-lg:20px;
    --r-btn:10px;
    --shadow-1:0 1px 2px rgba(20,24,29,.06);
    --shadow-2:0 12px 28px -12px rgba(20,24,29,.18);
    --shadow-3:0 6px 18px -10px rgba(20,24,29,.22);
    --ease:180ms ease-out;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
    background:var(--paper);
    color:var(--ink-2);
    font-size:16px;
    line-height:1.8;
  }
  img{display:block;max-width:100%;}
  a{color:inherit;text-decoration:none;}
  button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
  input,select,textarea{font:inherit;color:inherit;}
  h1,h2,h3,h4,p,ul,ol{margin:0;}
  ul{padding:0;list-style:none;}
  :focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
  @media (max-width:1023px){.container{padding:0 24px;}}
  @media (max-width:639px){.container{padding:0 20px;}}
  .num{font-variant-numeric:tabular-nums;}

  /* ---------- Header ---------- */
  .site-header{
    position:sticky;top:0;z-index:50;
    background:rgba(251,248,244,.97);
    border-bottom:1px solid transparent;
    transition:background var(--ease),box-shadow var(--ease),border-color var(--ease);
  }
  .site-header.is-condensed{background:#fff;border-bottom-color:var(--line);box-shadow:var(--shadow-3);}
  .topbar-inner{display:flex;align-items:center;gap:20px;min-height:64px;transition:min-height var(--ease);}
  .site-header.is-condensed .topbar-inner{min-height:56px;}
  .brand{display:inline-flex;align-items:center;gap:10px;flex:none;}
  .brand-mark{
    width:34px;height:34px;border-radius:10px;background:var(--brand);color:#fff;
    display:grid;place-items:center;font-weight:700;font-size:17px;line-height:1;
    box-shadow:0 4px 10px -6px rgba(240,86,43,.9);
  }
  .brand-text{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:.01em;white-space:nowrap;}
  .search-box{
    flex:1;max-width:340px;display:flex;align-items:center;gap:6px;
    background:#fff;border:1px solid var(--line);border-radius:var(--r-btn);
    height:40px;padding:0 5px 0 14px;transition:border-color var(--ease),box-shadow var(--ease);
  }
  .search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(240,86,43,.14);}
  .search-box input{flex:1;min-width:0;height:100%;border:0;background:none;outline:none;font-size:14px;color:var(--ink);}
  .search-box input::placeholder{color:var(--text-3);}
  .search-btn{
    width:32px;height:32px;border-radius:8px;background:var(--brand);color:#fff;
    display:grid;place-items:center;transition:background var(--ease);
  }
  .search-btn:hover{background:var(--brand-hover);}
  .hotwords{display:flex;gap:8px;margin-left:auto;}
  .hotword{
    font-size:13px;color:var(--text-2);background:#fff;border:1px solid var(--line);
    border-radius:999px;padding:5px 12px;white-space:nowrap;transition:all var(--ease);
  }
  .hotword:hover{color:var(--brand);border-color:#F7C9B9;background:var(--brand-tint);}
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:44px;padding:0 24px;border-radius:var(--r-btn);
    font-size:15px;font-weight:600;letter-spacing:.02em;
    transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
  }
  .btn-primary{background:var(--brand);color:#fff;}
  .btn-primary:hover{background:var(--brand-hover);transform:translateY(-1px);}
  .btn-primary:active{background:var(--brand-active);transform:translateY(0);}
  .btn-outline{background:#fff;color:var(--ink);border:1px solid #D9D2C8;}
  .btn-outline:hover{color:var(--brand);border-color:var(--brand);}
  .btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.4);}
  .btn-ghost:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.7);}
  .btn-sm{height:38px;padding:0 18px;font-size:14px;}
  .btn-block{width:100%;height:48px;}

  .channel-bar{border-top:1px solid var(--line);}
  .site-header.is-condensed .channel-bar{border-top-color:var(--line);}
  .channel-inner{display:flex;gap:28px;overflow-x:auto;scrollbar-width:none;}
  .channel-inner::-webkit-scrollbar{display:none;}
  .channel-link{
    position:relative;display:inline-flex;align-items:center;height:44px;
    font-size:15px;color:var(--text-2);white-space:nowrap;transition:color var(--ease);
  }
  .site-header.is-condensed .channel-link{height:38px;}
  .channel-link:hover{color:var(--ink);}
  .channel-link.is-active{color:var(--brand);font-weight:600;}
  .channel-link.is-active::after{
    content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
    background:var(--brand);border-radius:2px;
  }
  .nav-toggle{
    display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);
    background:#fff;color:var(--ink);place-items:center;margin-left:auto;
  }
  .nav-toggle:hover{color:var(--brand);border-color:#F7C9B9;}
  @media (max-width:1023px){
    .search-box,.hotwords,.topbar-cta{display:none;}
    .nav-toggle{display:grid;}
  }
  .drawer-mask{
    position:fixed;inset:0;background:rgba(22,25,30,.5);opacity:0;visibility:hidden;
    transition:opacity var(--ease),visibility var(--ease);z-index:60;
  }
  .drawer-mask.is-open{opacity:1;visibility:visible;}
  .drawer{
    position:fixed;top:0;right:0;bottom:0;width:300px;max-width:84vw;background:#fff;z-index:70;
    transform:translateX(100%);transition:transform 240ms ease-out;
    display:flex;flex-direction:column;padding:22px;overflow-y:auto;box-shadow:-12px 0 32px -18px rgba(20,24,29,.5);
  }
  .drawer.is-open{transform:translateX(0);}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
  .drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid var(--line);display:grid;place-items:center;color:var(--text-2);}
  .drawer-close:hover{color:var(--brand);border-color:#F7C9B9;}
  .drawer h4{font-size:13px;color:var(--text-3);letter-spacing:.06em;font-weight:600;margin:18px 0 10px;}
  .drawer-links a{display:block;padding:11px 0;font-size:15px;color:var(--text-2);border-bottom:1px solid var(--line);}
  .drawer-links a:hover,.drawer-links a.is-active{color:var(--brand);font-weight:600;}
  .drawer-tags{display:flex;flex-wrap:wrap;gap:8px;}

  /* ---------- Breadcrumb ---------- */
  .breadcrumb{padding:16px 0 0;font-size:13px;color:var(--text-3);}
  .breadcrumb a{transition:color var(--ease);}
  .breadcrumb a:hover{color:var(--brand);}
  .breadcrumb .sep{margin:0 8px;color:#C6BFB4;}
  .breadcrumb .current{color:var(--ink);}

  /* ---------- Page banner ---------- */
  .page-banner{background:var(--sub);border-bottom:1px solid var(--line);margin-top:14px;}
  .page-banner .container{
    display:flex;align-items:center;justify-content:space-between;gap:24px;
    flex-wrap:wrap;min-height:60px;padding-top:18px;padding-bottom:18px;
  }
  .page-banner h1{
    font-size:clamp(22px,2.4vw,30px);line-height:1.3;font-weight:700;
    color:var(--ink);letter-spacing:.01em;
  }
  .page-banner .lead{margin-top:4px;font-size:14px;color:var(--text-2);}
  .banner-count{font-size:13px;color:var(--text-3);}

  /* ---------- Index layout ---------- */
  .index-layout{display:grid;grid-template-columns:220px minmax(0,1fr);gap:32px;padding:48px 0 0;align-items:start;}
  @media (max-width:1023px){.index-layout{grid-template-columns:1fr;padding-top:32px;}}
  .filter-panel{
    position:sticky;top:124px;background:#fff;border:1px solid var(--line);
    border-radius:var(--r-card);padding:20px;box-shadow:var(--shadow-1);
  }
  @media (max-width:1023px){
    .filter-panel{position:static;padding:16px;}
    .filter-group{margin-top:12px;}
  }
  .filter-group+.filter-group{margin-top:20px;padding-top:18px;border-top:1px solid var(--line);}
  .filter-group h3{
    font-size:12.5px;color:var(--text-3);font-weight:600;letter-spacing:.08em;
    margin-bottom:10px;text-transform:uppercase;
  }
  @media (max-width:1023px){
    .filter-group ul{display:flex;flex-wrap:wrap;gap:6px;}
  }
  .filter-item{
    display:block;font-size:14px;color:var(--text-2);padding:7px 12px;
    border-left:2px solid transparent;border-radius:0 8px 8px 0;
    transition:background var(--ease),color var(--ease),border-color var(--ease);
  }
  .filter-item:hover{color:var(--ink);background:var(--paper);}
  .filter-item.is-current{color:var(--brand);font-weight:600;border-left-color:var(--brand);background:var(--brand-tint);}
  @media (max-width:1023px){
    .filter-item{border-left:0;border:1px solid var(--line);border-radius:999px;padding:6px 12px;}
    .filter-item.is-current{border-color:var(--brand);}
  }
  .tag-cloud{display:flex;flex-wrap:wrap;gap:8px;}
  .tag-cloud a{
    font-size:12.5px;padding:4px 10px;border-radius:999px;
    border:1px solid var(--line);color:var(--text-2);transition:all var(--ease);
  }
  .tag-cloud a:hover{color:var(--brand);border-color:#F7C9B9;background:var(--brand-tint);}

  .index-main{min-width:0;}
  .index-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:20px;flex-wrap:wrap;}
  .index-head h2{font-size:20px;font-weight:700;color:var(--ink);letter-spacing:.01em;}
  .index-head p{font-size:14px;color:var(--text-2);}

  .card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
  @media (max-width:1199px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
  @media (max-width:639px){.card-grid{grid-template-columns:1fr;gap:18px;}}
  .channel-card{
    display:flex;flex-direction:column;background:var(--card);
    border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
    box-shadow:var(--shadow-1);
    transition:transform 220ms ease-out,box-shadow 220ms ease-out,border-color 220ms ease-out;
  }
  .channel-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#F7C9B9;}
  .card-cover{position:relative;aspect-ratio:16/10;background:var(--line);overflow:hidden;}
  .card-cover img{width:100%;height:100%;object-fit:cover;transition:transform 220ms ease-out;}
  .channel-card:hover .card-cover img{transform:scale(1.03);}
  .card-cover .badge{position:absolute;left:12px;top:12px;background:#fff;}
  .badge{
    display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
    font-size:12.5px;font-weight:600;letter-spacing:.02em;
    background:var(--brand-tint);color:#C2431D;
  }
  .badge-cyan{background:rgba(15,181,166,.12);color:#0A8579;}
  .badge-ink{background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.3);}
  .card-body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:10px;flex:1;}
  .card-title{
    font-size:17px;font-weight:600;line-height:1.45;color:var(--ink);
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .card-desc{
    font-size:14px;color:var(--text-2);line-height:1.7;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .card-foot{
    margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
    padding-top:12px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3);
  }
  .card-link{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;font-size:13.5px;}
  .card-link span{transition:transform var(--ease);}
  .card-link:hover span{transform:translateX(2px);}

  .pager{display:flex;gap:8px;justify-content:center;margin-top:36px;flex-wrap:wrap;}
  .pager a{
    min-width:40px;height:40px;padding:0 10px;display:grid;place-items:center;
    border:1px solid var(--line);border-radius:10px;background:#fff;
    font-size:14px;color:var(--text-2);transition:all var(--ease);
  }
  .pager a:hover{color:var(--brand);border-color:#F7C9B9;}
  .pager a.is-current{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600;}

  /* ---------- Sections ---------- */
  .section{padding:72px 0;}
  .section-sub{background:var(--sub);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
  .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap;}
  .section-head h2{font-size:clamp(24px,2.6vw,32px);line-height:1.3;font-weight:700;color:var(--ink);letter-spacing:.01em;}
  .section-head p{margin-top:8px;font-size:15px;color:var(--text-2);max-width:600px;}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:600;
    letter-spacing:.08em;color:var(--brand);margin-bottom:12px;
  }
  .eyebrow::before{content:"";width:22px;height:2px;background:var(--brand);border-radius:2px;}
  .text-link{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--brand);}
  .text-link span{transition:transform var(--ease);}
  .text-link:hover span{transform:translateX(2px);}

  .insight-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
  @media (max-width:767px){.insight-grid{grid-template-columns:1fr;}}
  .insight{
    display:flex;gap:14px;background:#fff;border:1px solid var(--line);
    border-radius:var(--r-card);padding:22px;box-shadow:var(--shadow-1);
    transition:border-color var(--ease),box-shadow var(--ease);
  }
  .insight:hover{border-color:#F7C9B9;box-shadow:var(--shadow-2);}
  .tick{
    flex:none;width:26px;height:26px;border-radius:999px;background:rgba(15,181,166,.14);
    color:#0A8579;display:grid;place-items:center;font-size:13px;font-weight:700;margin-top:2px;
  }
  .insight h3{font-size:17px;font-weight:600;color:var(--ink);margin-bottom:4px;}
  .insight p{font-size:14.5px;color:var(--text-2);line-height:1.75;}

  .feature-dark{position:relative;border-radius:var(--r-lg);overflow:hidden;background:var(--ink);color:#F5F1EA;}
  .feature-dark::before{
    content:"";position:absolute;inset:0;
    background-image:url('/assets/images/backpic/back-2.png');
    background-size:cover;background-position:center;opacity:.32;
  }
  .feature-dark::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(100deg,rgba(22,25,30,.94) 20%,rgba(22,25,30,.55) 100%);
  }
  .feature-inner{position:relative;z-index:1;padding:56px;display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;}
  @media (max-width:1023px){.feature-inner{grid-template-columns:1fr;padding:40px 28px;gap:28px;}}
  .feature-inner h2{font-size:clamp(24px,2.6vw,32px);line-height:1.32;font-weight:700;color:#fff;}
  .feature-inner p{margin-top:14px;font-size:15.5px;line-height:1.8;color:#CFC9C0;max-width:520px;}
  .feature-list{margin-top:22px;display:grid;gap:12px;}
  .feature-list li{display:flex;gap:10px;font-size:14.5px;color:#E6E1D9;}
  .feature-list li i{color:var(--cyan);font-style:normal;font-weight:700;}
  .feature-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;}
  .stat{
    background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);
    border-radius:14px;padding:20px;backdrop-filter:blur(2px);
  }
  .stat b{display:block;font-size:30px;line-height:1.1;color:#fff;font-weight:700;}
  .stat span{display:block;margin-top:6px;font-size:13px;color:#B9B2A8;}
  .stat i{font-style:normal;font-size:13px;color:var(--cyan);margin-left:4px;}

  .flow-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
  @media (max-width:1023px){.flow-grid{grid-template-columns:1fr;}}
  .flow-card{
    position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
    padding:26px;box-shadow:var(--shadow-1);transition:border-color var(--ease),box-shadow var(--ease);
  }
  .flow-card:hover{border-color:#F7C9B9;box-shadow:var(--shadow-2);}
  .flow-num{font-size:44px;font-weight:700;line-height:1;color:var(--brand);letter-spacing:-.02em;}
  .flow-card h3{font-size:19px;font-weight:600;color:var(--ink);margin:14px 0 8px;}
  .flow-card p{font-size:14.5px;color:var(--text-2);line-height:1.75;}

  .faq-wrap{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start;}
  @media (max-width:1023px){.faq-wrap{grid-template-columns:1fr;gap:24px;}}
  .faq-item{border-bottom:1px solid var(--line);}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:18px 0;font-size:17px;font-weight:600;color:var(--ink);text-align:left;
    transition:color var(--ease);
  }
  .faq-q:hover{color:var(--brand);}
  .faq-icon{
    flex:none;width:26px;height:26px;border-radius:8px;border:1px solid var(--line);
    display:grid;place-items:center;font-size:15px;color:var(--text-2);
    transition:transform var(--ease),border-color var(--ease),color var(--ease);
  }
  .faq-item.is-open .faq-q{color:var(--brand);}
  .faq-item.is-open .faq-icon{transform:rotate(45deg);color:var(--brand);border-color:#F7C9B9;background:var(--brand-tint);}
  .faq-a{max-height:0;overflow:hidden;transition:max-height 260ms ease-out;}
  .faq-a p{padding:0 0 20px;font-size:15px;line-height:1.75;color:var(--text-2);}

  .cta-band{
    background:var(--ink);border-radius:var(--r-lg);color:#fff;
    padding:56px;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;
    box-shadow:0 24px 48px -32px rgba(20,24,29,.6);
  }
  @media (max-width:1023px){.cta-band{grid-template-columns:1fr;padding:36px 24px;gap:28px;}}
  .cta-band h2{font-size:clamp(24px,2.6vw,32px);line-height:1.3;font-weight:700;color:#fff;}
  .cta-band .sub{margin-top:12px;font-size:15px;color:#B9B2A8;line-height:1.8;max-width:460px;}
  .cta-points{margin-top:24px;display:grid;gap:12px;}
  .cta-points li{display:flex;gap:10px;font-size:14.5px;color:#E6E1D9;}
  .cta-points i{color:var(--cyan);font-style:normal;font-weight:700;}
  .form-row{display:grid;gap:6px;margin-bottom:14px;}
  .form-row label{font-size:14px;color:#A9B0B8;}
  .form-row input,.form-row select{
    height:44px;width:100%;border-radius:var(--r-btn);border:1px solid transparent;
    background:#fff;padding:0 14px;font-size:15px;color:var(--ink);
    transition:border-color var(--ease),box-shadow var(--ease);
  }
  .form-row input::placeholder{color:#A9B0B8;}
  .form-row input:focus,.form-row select:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(240,86,43,.24);}
  .form-hint{margin-top:10px;font-size:13px;color:#8A9099;}
  .form-note{min-height:20px;margin-top:8px;font-size:13.5px;color:var(--cyan);}

  /* ---------- Footer ---------- */
  .site-footer{background:var(--ink);color:#F5F1EA;margin-top:72px;padding:56px 0 0;}
  .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:40px;}
  @media (max-width:1023px){.footer-grid{grid-template-columns:1fr 1fr;gap:28px;}}
  @media (max-width:639px){.footer-grid{grid-template-columns:1fr;gap:24px;}}
  .footer-brand .brand-text{color:#fff;}
  .footer-brand p{margin-top:14px;font-size:14px;line-height:1.8;color:#A9B0B8;max-width:300px;}
  .footer-license{margin-top:10px;font-size:13px;color:#8A9099;}
  .footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px;letter-spacing:.02em;}
  .footer-col ul{display:grid;gap:10px;}
  .footer-col a{font-size:14px;color:#A9B0B8;transition:color var(--ease);}
  .footer-col a:hover{color:var(--brand);}
  .footer-contact li{display:flex;justify-content:space-between;gap:12px;font-size:13.5px;color:#A9B0B8;}
  .footer-contact li span:first-child{color:#8A9099;}
  .footer-bottom{
    display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
    padding:18px 0;border-top:1px solid rgba(255,255,255,.1);
    font-size:13px;color:#8A9099;
  }

  .to-top{
    position:fixed;right:24px;bottom:24px;width:44px;height:44px;border-radius:999px;
    border:1px solid var(--brand);background:#fff;color:var(--brand);
    display:grid;place-items:center;z-index:40;opacity:0;visibility:hidden;
    transition:opacity var(--ease),visibility var(--ease),background var(--ease),color var(--ease);
    box-shadow:var(--shadow-1);
  }
  .to-top.is-visible{opacity:1;visibility:visible;}
  .to-top:hover{background:var(--brand);color:#fff;}
  @media (max-width:639px){.to-top{right:16px;bottom:16px;}}

/* roulang page: article */
:root {
      --brand: #F0562B;
      --brand-hover: #D9451F;
      --brand-press: #BF3A18;
      --brand-tint: #FDEDE8;
      --ink: #16191E;
      --ink-2: #1A1D21;
      --muted: #5A6069;
      --weak: #8A9099;
      --bg: #FBF8F4;
      --surface: #FFFFFF;
      --surface-2: #F4EFE8;
      --line: #E9E3DB;
      --line-strong: #D9D2C8;
      --cyan: #0FB5A6;
      --success: #16A34A;
      --warning: #D97706;
      --danger: #DC2626;
      --radius: 16px;
      --radius-lg: 20px;
      --radius-sm: 10px;
      --shadow: 0 1px 2px rgba(20, 24, 29, .06);
      --shadow-hover: 0 12px 28px -12px rgba(20, 24, 29, .18);
      --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
      --mono: "Inter", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    }

    *,
    *::before,
    *::after {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: var(--font);
      background: var(--bg);
      color: var(--ink-2);
      font-size: 16px;
      line-height: 1.8;
      -webkit-font-smoothing: antialiased;
      text-rendering: optimizeLegibility;
    }

    body.menu-open {
      overflow: hidden;
    }

    h1,
    h2,
    h3,
    h4,
    p,
    figure,
    blockquote {
      margin: 0;
    }

    ul,
    ol {
      margin: 0;
      padding: 0;
      list-style: none;
    }

    a {
      color: inherit;
      text-decoration: none;
    }

    img {
      display: block;
      max-width: 100%;
    }

    button,
    input,
    select,
    textarea {
      font: inherit;
    }

    button {
      cursor: pointer;
    }

    ::selection {
      background: var(--brand-tint);
      color: var(--brand-press);
    }

    :focus-visible {
      outline: 2px solid var(--brand);
      outline-offset: 2px;
    }

    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 44px;
      padding: 0 22px;
      border: 1px solid transparent;
      border-radius: var(--radius-sm);
      font-size: 15px;
      font-weight: 600;
      line-height: 1;
      letter-spacing: .02em;
      transition: background-color .2s ease-out, color .2s ease-out, border-color .2s ease-out, transform .2s ease-out, box-shadow .2s ease-out;
    }

    .btn:hover {
      transform: translateY(-1px);
    }

    .btn:active {
      transform: translateY(0);
    }

    .btn-primary {
      background: var(--brand);
      color: #fff;
    }

    .btn-primary:hover {
      background: var(--brand-hover);
      box-shadow: 0 10px 20px -12px rgba(240, 86, 43, .7);
    }

    .btn-primary:active {
      background: var(--brand-press);
    }

    .btn-outline {
      background: var(--surface);
      border-color: var(--line-strong);
      color: var(--ink-2);
    }

    .btn-outline:hover {
      border-color: var(--brand);
      color: var(--brand);
      background: var(--brand-tint);
    }

    .btn-block {
      width: 100%;
      min-height: 48px;
    }

    .icon {
      width: 20px;
      height: 20px;
      flex-shrink: 0;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(251, 248, 244, .98);
      border-bottom: 1px solid transparent;
      transition: background-color .2s ease-out, border-color .2s ease-out, box-shadow .2s ease-out;
    }

    .site-header.is-scrolled {
      background: #fff;
      border-bottom-color: var(--line);
      box-shadow: 0 6px 18px -10px rgba(20, 24, 29, .22);
    }

    .topbar {
      height: 64px;
      display: flex;
      align-items: center;
      transition: height .2s ease-out;
    }

    .site-header.is-scrolled .topbar {
      height: 56px;
    }

    .topbar-inner {
      width: 100%;
      display: flex;
      align-items: center;
      gap: 20px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }

    .brand-mark {
      width: 36px;
      height: 36px;
      border-radius: 10px;
      display: grid;
      place-items: center;
      background: var(--brand);
      color: #fff;
      font-weight: 800;
      font-size: 18px;
      line-height: 1;
      letter-spacing: 0;
      box-shadow: 0 6px 14px -10px rgba(240, 86, 43, .8);
      transition: transform .2s ease-out;
    }

    .brand:hover .brand-mark {
      transform: translateY(-1px);
    }

    .brand-text {
      color: var(--ink);
      font-size: 16px;
      font-weight: 700;
      letter-spacing: .01em;
      white-space: nowrap;
    }

    .search-form {
      position: relative;
      flex: 1;
      max-width: 420px;
      min-width: 190px;
    }

    .search-input {
      width: 100%;
      height: 40px;
      padding: 0 46px 0 14px;
      border: 1px solid var(--line);
      border-radius: var(--radius-sm);
      background: #fff;
      color: var(--ink-2);
      font-size: 14px;
      transition: border-color .2s ease-out, box-shadow .2s ease-out;
    }

    .search-input::placeholder {
      color: #A7A19A;
    }

    .search-input:focus {
      border-color: var(--brand);
      box-shadow: 0 0 0 3px var(--brand-tint);
      outline: none;
    }

    .search-btn {
      position: absolute;
      right: 4px;
      top: 4px;
      width: 32px;
      height: 32px;
      border: 0;
      border-radius: 8px;
      background: transparent;
      color: var(--weak);
      display: grid;
      place-items: center;
      transition: color .2s ease-out, background-color .2s ease-out;
    }

    .search-btn:hover {
      color: var(--brand);
      background: var(--brand-tint);
    }

    .hot-tags {
      display: flex;
      align-items: center;
      gap: 8px;
      margin-left: auto;
    }

    .hot-tag {
      display: inline-flex;
      align-items: center;
      height: 30px;
      padding: 0 12px;
      border: 1px solid var(--line);
      border-radius: 999px;
      background: #fff;
      color: var(--muted);
      font-size: 12px;
      white-space: nowrap;
      transition: color .2s ease-out, background-color .2s ease-out, border-color .2s ease-out;
    }

    .hot-tag:hover {
      color: var(--brand);
      background: var(--brand-tint);
      border-color: var(--brand-tint);
    }

    .header-cta {
      min-height: 38px;
      padding: 0 16px;
      font-size: 14px;
      flex-shrink: 0;
    }

    .icon-btn {
      width: 42px;
      height: 42px;
      padding: 0;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border: 1px solid var(--line);
      border-radius: var(--radius-sm);
      background: #fff;
      color: var(--ink);
      transition: color .2s ease-out, border-color .2s ease-out, background-color .2s ease-out;
    }

    .icon-btn:hover {
      color: var(--brand);
      border-color: var(--brand);
      background: var(--brand-tint);
    }

    .mobile-search-btn,
    .menu-toggle {
      display: none;
    }

    .channel-bar {
      border-top: 1px solid transparent;
    }

    .channel-inner {
      display: flex;
      align-items: center;
      gap: 8px;
      height: 44px;
      overflow-x: auto;
      scrollbar-width: none;
      transition: height .2s ease-out;
    }

    .channel-inner::-webkit-scrollbar {
      display: none;
    }

    .channel-link {
      position: relative;
      display: inline-flex;
      align-items: center;
      height: 44px;
      padding: 0 14px;
      color: var(--muted);
      font-size: 14px;
      white-space: nowrap;
      transition: color .2s ease-out, height .2s ease-out;
    }

    .channel-link::after {
      content: "";
      position: absolute;
      left: 14px;
      right: 14px;
      bottom: 0;
      height: 2px;
      border-radius: 2px;
      background: var(--brand);
      transform: scaleX(0);
      transform-origin: left;
      transition: transform .2s ease-out;
    }

    .channel-link:hover {
      color: var(--ink);
    }

    .channel-link.is-active {
      color: var(--brand);
      font-weight: 600;
    }

    .channel-link.is-active::after {
      transform: scaleX(1);
    }

    .site-header.is-scrolled .channel-inner,
    .site-header.is-scrolled .channel-link {
      height: 38px;
    }

    .drawer-overlay {
      position: fixed;
      inset: 0;
      z-index: 70;
      background: rgba(22, 25, 30, .5);
      opacity: 0;
      visibility: hidden;
      transition: opacity .2s ease-out, visibility .2s ease-out;
    }

    .drawer-overlay.is-open {
      opacity: 1;
      visibility: visible;
    }

    .drawer {
      position: fixed;
      top: 0;
      right: 0;
      z-index: 80;
      width: min(340px, 88vw);
      height: 100vh;
      padding: 20px;
      display: flex;
      flex-direction: column;
      overflow-y: auto;
      background: #fff;
      box-shadow: -16px 0 40px -24px rgba(20, 24, 29, .4);
      transform: translateX(100%);
      transition: transform .24s ease-out;
    }

    .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-title {
      font-size: 14px;
      font-weight: 700;
      color: var(--ink);
    }

    .drawer-search {
      margin-top: 18px;
      position: relative;
    }

    .drawer-nav {
      margin-top: 20px;
      display: flex;
      flex-direction: column;
      gap: 2px;
    }

    .drawer-nav a {
      display: flex;
      align-items: center;
      justify-content: space-between;
      min-height: 46px;
      padding: 0 12px;
      border-radius: 10px;
      color: var(--ink-2);
      font-size: 15px;
      transition: color .2s ease-out, background-color .2s ease-out;
    }

    .drawer-nav a:hover,
    .drawer-nav a.is-active {
      color: var(--brand);
      background: var(--brand-tint);
    }

    .drawer-hot {
      margin-top: 22px;
    }

    .drawer-hot-title {
      font-size: 13px;
      color: var(--weak);
      margin-bottom: 10px;
    }

    .drawer-hot-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .drawer-foot {
      margin-top: auto;
      padding-top: 24px;
    }

    .article-hero {
      padding: 34px 0 0;
    }

    .breadcrumb {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 8px;
      color: var(--weak);
      font-size: 13px;
      line-height: 1.6;
    }

    .breadcrumb a {
      color: var(--muted);
      transition: color .2s ease-out;
    }

    .breadcrumb a:hover {
      color: var(--brand);
    }

    .breadcrumb .sep {
      color: #C9C1B6;
    }

    .breadcrumb .current {
      max-width: min(640px, 72vw);
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
      color: var(--ink-2);
      font-weight: 500;
    }

    .article-layout {
      display: grid;
      grid-template-columns: minmax(0, 760px) 300px;
      gap: 56px;
      align-items: start;
      max-width: 1120px;
      margin: 0 auto;
      padding: 30px 24px 72px;
    }

    .article-main {
      min-width: 0;
    }

    .article-header {
      padding: 8px 0 24px;
    }

    .article-kicker {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 10px;
      margin-bottom: 18px;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      height: 26px;
      padding: 0 12px;
      border-radius: 999px;
      background: var(--brand-tint);
      color: var(--brand-press);
      font-size: 12px;
      font-weight: 600;
      letter-spacing: .02em;
      white-space: nowrap;
    }

    .badge-light {
      background: #fff;
      border: 1px solid var(--line);
      color: var(--muted);
      font-weight: 500;
    }

    .article-header h1 {
      max-width: 760px;
      color: var(--ink);
      font-size: clamp(26px, 3vw, 36px);
      font-weight: 700;
      line-height: 1.3;
      letter-spacing: .01em;
      overflow-wrap: break-word;
    }

    .article-meta {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 8px 18px;
      margin-top: 18px;
      color: var(--weak);
      font-size: 14px;
    }

    .meta-item {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      min-height: 24px;
    }

    .meta-dot {
      width: 4px;
      height: 4px;
      border-radius: 50%;
      background: #C9C1B6;
    }

    .article-divider {
      height: 1px;
      margin-bottom: 30px;
      background: var(--line);
    }

    .article-content {
      min-height: 360px;
      max-width: 760px;
      color: var(--ink-2);
      font-size: 16px;
      line-height: 1.8;
      overflow-wrap: break-word;
    }

    .article-content > * + * {
      margin-top: 1em;
    }

    .article-content p {
      margin: 0 0 1em;
    }

    .article-content h2 {
      position: relative;
      margin-top: 2em;
      margin-bottom: .7em;
      padding-left: 14px;
      color: var(--ink);
      font-size: clamp(22px, 2.4vw, 26px);
      font-weight: 700;
      line-height: 1.4;
      letter-spacing: .01em;
    }

    .article-content h2::before {
      content: "";
      position: absolute;
      left: 0;
      top: .18em;
      bottom: .18em;
      width: 4px;
      border-radius: 2px;
      background: var(--brand);
    }

    .article-content h3 {
      margin-top: 1.7em;
      margin-bottom: .6em;
      color: var(--ink);
      font-size: 20px;
      font-weight: 600;
      line-height: 1.5;
    }

    .article-content h4 {
      margin-top: 1.4em;
      margin-bottom: .5em;
      color: var(--ink);
      font-size: 17px;
      font-weight: 600;
    }

    .article-content a {
      color: var(--brand-press);
      text-decoration: underline;
      text-underline-offset: 3px;
      transition: color .2s ease-out;
    }

    .article-content a:hover {
      color: var(--brand);
    }

    .article-content ul,
    .article-content ol {
      margin: 1em 0;
      padding-left: 1.4em;
    }

    .article-content ul {
      list-style: disc;
    }

    .article-content ol {
      list-style: decimal;
    }

    .article-content li {
      margin: .4em 0;
      padding-left: .2em;
    }

    .article-content li::marker {
      color: var(--brand);
    }

    .article-content blockquote {
      margin: 1.4em 0;
      padding: 16px 20px;
      border-left: 3px solid var(--brand);
      border-radius: 0 10px 10px 0;
      background: var(--surface-2);
      color: var(--muted);
      font-size: 15px;
      line-height: 1.8;
    }

    .article-content blockquote p:last-child {
      margin-bottom: 0;
    }

    .article-content table {
      display: block;
      width: 100%;
      margin: 1.4em 0;
      overflow-x: auto;
      border-collapse: collapse;
      border-spacing: 0;
      font-size: 15px;
    }

    .article-content th,
    .article-content td {
      padding: 10px 12px;
      border: 1px solid var(--line);
      text-align: left;
      vertical-align: top;
    }

    .article-content th {
      background: var(--surface-2);
      color: var(--ink);
      font-weight: 600;
    }

    .article-content tr:nth-child(even) td {
      background: #FCFAF7;
    }

    .article-content img {
      width: auto;
      max-width: 100%;
      height: auto;
      margin: 1.4em auto;
      border-radius: 12px;
      background: var(--line);
    }

    .article-content figure {
      margin: 1.4em 0;
    }

    .article-content figcaption {
      margin-top: 8px;
      color: var(--weak);
      font-size: 13px;
      line-height: 1.6;
      text-align: center;
    }

    .article-content hr {
      margin: 2em 0;
      border: 0;
      border-top: 1px solid var(--line);
    }

    .empty-state {
      padding: 56px 24px;
      border: 1px dashed var(--line-strong);
      border-radius: var(--radius);
      background: #fff;
      text-align: center;
    }

    .empty-state h2 {
      margin: 0 0 20px;
      color: var(--ink);
      font-size: 24px;
      font-weight: 700;
    }

    .article-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 36px;
      padding-top: 24px;
      border-top: 1px solid var(--line);
    }

    .tag {
      display: inline-flex;
      align-items: center;
      height: 28px;
      padding: 0 12px;
      border: 1px solid var(--line-strong);
      border-radius: 999px;
      background: #fff;
      color: var(--muted);
      font-size: 12px;
      transition: color .2s ease-out, background-color .2s ease-out, border-color .2s ease-out;
    }

    .tag:hover {
      color: var(--brand);
      background: var(--brand-tint);
      border-color: var(--brand);
    }

    .article-actions {
      margin-top: 24px;
    }

    .article-sidebar {
      position: sticky;
      top: 96px;
      display: flex;
      flex-direction: column;
      gap: 20px;
      min-width: 0;
    }

    .side-card {
      padding: 20px;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: #fff;
      box-shadow: var(--shadow);
    }

    .side-title {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      margin-bottom: 14px;
      color: var(--ink);
      font-size: 14px;
      font-weight: 700;
      letter-spacing: .02em;
    }

    .side-title span {
      color: var(--weak);
      font-size: 12px;
      font-weight: 400;
    }

    .toc {
      display: flex;
      flex-direction: column;
      gap: 2px;
    }

    .toc-link {
      position: relative;
      display: block;
      padding: 9px 10px 9px 14px;
      border-radius: 8px;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.6;
      transition: color .2s ease-out, background-color .2s ease-out;
    }

    .toc-link::before {
      content: "";
      position: absolute;
      left: 0;
      top: 10px;
      bottom: 10px;
      width: 3px;
      border-radius: 2px;
      background: transparent;
      transition: background-color .2s ease-out;
    }

    .toc-link:hover {
      color: var(--ink);
      background: var(--bg);
    }

    .toc-link.is-active {
      color: var(--brand);
      background: var(--brand-tint);
      font-weight: 600;
    }

    .toc-link.is-active::before {
      background: var(--brand);
    }

    .hot-list {
      display: flex;
      flex-direction: column;
    }

    .hot-list li + li {
      border-top: 1px dashed var(--line);
    }

    .hot-list a {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      padding: 12px 0;
      color: var(--ink-2);
      font-size: 14px;
      line-height: 1.6;
      transition: color .2s ease-out, transform .2s ease-out;
    }

    .hot-list a:hover {
      color: var(--brand);
      transform: translateX(2px);
    }

    .hot-index {
      color: var(--brand);
      font-family: var(--mono);
      font-size: 12px;
      font-weight: 600;
      line-height: 1.8;
      font-variant-numeric: tabular-nums;
    }

    .article-side-note {
      color: var(--weak);
      font-size: 13px;
      line-height: 1.7;
    }

    .recommend-section {
      padding: 0 0 72px;
    }

    .section-head {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 20px;
      margin-bottom: 24px;
    }

    .section-head h2 {
      color: var(--ink);
      font-size: clamp(24px, 2.6vw, 32px);
      font-weight: 700;
      line-height: 1.3;
      letter-spacing: .01em;
    }

    .text-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--brand);
      font-size: 14px;
      font-weight: 600;
      white-space: nowrap;
    }

    .text-link::after {
      content: "→";
      transition: transform .2s ease-out;
    }

    .text-link:hover::after {
      transform: translateX(2px);
    }

    .recommend-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 20px;
    }

    .recommend-card {
      display: flex;
      flex-direction: column;
      overflow: hidden;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: #fff;
      box-shadow: var(--shadow);
      transition: transform .2s ease-out, box-shadow .2s ease-out, border-color .2s ease-out;
    }

    .recommend-card:hover {
      transform: translateY(-2px);
      border-color: var(--brand-tint);
      box-shadow: var(--shadow-hover);
    }

    .recommend-thumb {
      aspect-ratio: 4 / 3;
      overflow: hidden;
      background: var(--surface-2);
    }

    .recommend-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform .24s ease-out;
    }

    .recommend-card:hover .recommend-thumb img {
      transform: scale(1.03);
    }

    .recommend-body {
      display: flex;
      flex: 1;
      flex-direction: column;
      gap: 8px;
      padding: 16px 18px 18px;
    }

    .recommend-body h3 {
      display: -webkit-box;
      overflow: hidden;
      color: var(--ink);
      font-size: 17px;
      font-weight: 600;
      line-height: 1.5;
      -webkit-box-orient: vertical;
      -webkit-line-clamp: 2;
    }

    .recommend-date {
      margin-top: auto;
      color: var(--weak);
      font-size: 13px;
    }

    .recommend-link {
      display: inline-flex;
      align-items: center;
      gap: 4px;
      color: var(--brand);
      font-size: 13px;
      font-weight: 600;
    }

    .recommend-link::after {
      content: "→";
      transition: transform .2s ease-out;
    }

    .recommend-card:hover .recommend-link::after {
      transform: translateX(2px);
    }

    .cta-section {
      padding: 0 0 80px;
    }

    .cta-panel {
      position: relative;
      display: grid;
      grid-template-columns: 1.05fr .95fr;
      gap: 48px;
      align-items: center;
      overflow: hidden;
      padding: clamp(28px, 4vw, 56px);
      border-radius: var(--radius-lg);
      background: var(--ink);
      color: #F5F1EA;
    }

    .cta-panel::after {
      content: "";
      position: absolute;
      right: -80px;
      bottom: -120px;
      width: 300px;
      height: 300px;
      border: 1px solid rgba(255, 255, 255, .08);
      border-radius: 50%;
      pointer-events: none;
    }

    .cta-copy {
      position: relative;
      z-index: 1;
    }

    .cta-copy h2 {
      color: #fff;
      font-size: clamp(24px, 2.8vw, 32px);
      font-weight: 700;
      line-height: 1.35;
      letter-spacing: .01em;
    }

    .cta-copy p {
      margin-top: 12px;
      color: #A9B0B8;
      font-size: 15px;
      line-height: 1.8;
    }

    .cta-points {
      display: flex;
      flex-direction: column;
      gap: 10px;
      margin-top: 22px;
    }

    .cta-points li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      color: #D7DBE0;
      font-size: 14px;
      line-height: 1.7;
    }

    .cta-points .check {
      color: var(--cyan);
      font-weight: 700;
      line-height: 1.7;
    }

    .cta-form {
      position: relative;
      z-index: 1;
      display: grid;
      gap: 12px;
    }

    .form-field {
      display: grid;
      gap: 6px;
    }

    .form-field label {
      color: #A9B0B8;
      font-size: 13px;
      line-height: 1.6;
    }

    .form-field input,
    .form-field select {
      width: 100%;
      height: 46px;
      padding: 0 12px;
      border: 1px solid rgba(255, 255, 255, .16);
      border-radius: var(--radius-sm);
      background: #fff;
      color: var(--ink-2);
      font-size: 14px;
      transition: border-color .2s ease-out, box-shadow .2s ease-out;
    }

    .form-field input:focus,
    .form-field select:focus {
      border-color: var(--brand);
      box-shadow: 0 0 0 3px rgba(240, 86, 43, .24);
      outline: none;
    }

    .form-note {
      color: #8A9099;
      font-size: 12px;
      line-height: 1.7;
    }

    .site-footer {
      padding: 64px 0 28px;
      background: var(--ink);
      color: #F5F1EA;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr .8fr .8fr 1fr;
      gap: 36px;
      padding-bottom: 40px;
      border-bottom: 1px solid rgba(255, 255, 255, .1);
    }

    .footer-brand .brand-text {
      color: #fff;
    }

    .footer-brand .brand-mark {
      background: var(--brand);
    }

    .footer-brand p {
      max-width: 320px;
      margin-top: 14px;
      color: #A9B0B8;
      font-size: 14px;
      line-height: 1.8;
    }

    .footer-brand .footer-license {
      margin-top: 12px;
      color: #8A9099;
      font-size: 12px;
    }

    .footer-col h4 {
      margin-bottom: 16px;
      color: #fff;
      font-size: 14px;
      font-weight: 600;
    }

    .footer-col ul {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .footer-col a {
      color: #A9B0B8;
      font-size: 14px;
      transition: color .2s ease-out;
    }

    .footer-col a:hover {
      color: #fff;
    }

    .footer-contact li {
      display: flex;
      justify-content: space-between;
      gap: 16px;
      color: #A9B0B8;
      font-size: 13px;
      line-height: 1.7;
    }

    .footer-contact li span:first-child {
      color: #8A9099;
      flex-shrink: 0;
    }

    .footer-bottom {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      flex-wrap: wrap;
      padding-top: 22px;
      color: #8A9099;
      font-size: 13px;
      line-height: 1.7;
    }

    @media (max-width: 1023px) {
      .search-form,
      .hot-tags,
      .header-cta {
        display: none;
      }

      .mobile-search-btn,
      .menu-toggle {
        display: inline-flex;
      }

      .menu-toggle {
        margin-left: 8px;
      }

      .channel-bar {
        display: none;
      }

      .topbar {
        height: 60px;
      }

      .article-layout {
        grid-template-columns: 1fr;
        gap: 36px;
        padding-top: 20px;
      }

      .article-sidebar {
        position: static;
      }

      .cta-panel {
        grid-template-columns: 1fr;
        gap: 28px;
      }

      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 767px) {
      .container {
        padding: 0 18px;
      }

      .article-layout {
        padding-left: 18px;
        padding-right: 18px;
        padding-bottom: 52px;
      }

      .article-header h1 {
        font-size: 26px;
      }

      .recommend-grid {
        grid-template-columns: 1fr;
      }

      .section-head {
        align-items: flex-start;
        flex-direction: column;
        gap: 10px;
      }

      .cta-panel {
        padding: 24px;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
      }

      .footer-bottom {
        align-items: flex-start;
        flex-direction: column;
      }
    }

    @media (max-width: 520px) {
      .brand-text {
        font-size: 14px;
      }

      .brand-mark {
        width: 32px;
        height: 32px;
        font-size: 16px;
      }

      .topbar {
        height: 58px;
      }

      .article-hero {
        padding-top: 20px;
      }

      .article-meta {
        gap: 8px 12px;
        font-size: 13px;
      }

      .article-content {
        font-size: 16px;
      }

      .article-tags {
        margin-top: 28px;
      }

      .recommend-section {
        padding-bottom: 48px;
      }

      .cta-section {
        padding-bottom: 56px;
      }

      .site-footer {
        padding-top: 48px;
      }
    }

/* roulang page: category2 */
:root{
    --primary:#F0562B;
    --primary-hover:#D9451F;
    --primary-active:#BF3A18;
    --primary-tint:#FDEDE8;
    --ink:#16191E;
    --ink-2:#1A1D21;
    --text:#1A1D21;
    --text-2:#5A6069;
    --text-3:#8A9099;
    --cyan:#0FB5A6;
    --bg:#FBF8F4;
    --bg-alt:#F4EFE8;
    --card:#FFFFFF;
    --line:#E9E3DB;
    --line-strong:#D9D2C8;
    --radius-card:16px;
    --radius-lg:20px;
    --radius-btn:10px;
    --shadow-sm:0 1px 2px rgba(20,24,29,.06);
    --shadow-card:0 12px 28px -12px rgba(20,24,29,.18);
    --shadow-nav:0 6px 18px -10px rgba(20,24,29,.22);
    --ease:cubic-bezier(.3,.7,.4,1);
    --container:1200px;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--bg);
    color:var(--text);
    font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;border:0;}
  a{color:inherit;text-decoration:none;transition:color .2s var(--ease);}
  button,input,select,textarea{font:inherit;color:inherit;}
  h1,h2,h3,h4,p,ul,ol{margin:0;}
  ul,ol{padding:0;list-style:none;}
  .container{
    width:100%;
    max-width:var(--container);
    margin:0 auto;
    padding:0 24px;
  }
  :focus-visible{
    outline:2px solid var(--primary);
    outline-offset:2px;
    border-radius:6px;
  }
  .num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

  /* ---------- 顶部导航 ---------- */
  .site-header{
    position:sticky;
    top:0;
    z-index:50;
    background:var(--bg);
    border-bottom:1px solid transparent;
    transition:background .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  }
  .site-header.is-stuck{
    background:#fff;
    border-bottom-color:var(--line);
    box-shadow:var(--shadow-nav);
  }
  .topbar{
    height:64px;
    display:flex;
    align-items:center;
    gap:20px;
    transition:height .2s var(--ease);
  }
  .site-header.is-stuck .topbar{height:56px;}
  .brand{
    display:inline-flex;
    align-items:center;
    gap:10px;
    flex:0 0 auto;
  }
  .brand-mark{
    width:34px;height:34px;
    display:grid;place-items:center;
    border-radius:10px;
    background:var(--primary);
    color:#fff;
    font-weight:700;
    font-size:17px;
    letter-spacing:.02em;
    box-shadow:0 6px 14px -8px rgba(240,86,43,.9);
  }
  .brand-text{
    font-size:17px;
    font-weight:700;
    color:var(--ink);
    letter-spacing:.01em;
    white-space:nowrap;
  }
  .nav-search{
    flex:1 1 auto;
    max-width:360px;
    display:flex;
    align-items:center;
    background:#fff;
    border:1px solid var(--line);
    border-radius:10px;
    overflow:hidden;
    transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
  }
  .nav-search:focus-within{
    border-color:var(--primary);
    box-shadow:0 0 0 3px rgba(240,86,43,.12);
  }
  .nav-search input{
    flex:1 1 auto;
    height:40px;
    padding:0 14px;
    border:0;
    background:transparent;
    font-size:14px;
    outline:none;
    min-width:0;
  }
  .nav-search input::placeholder{color:var(--text-3);}
  .nav-search button{
    width:44px;height:40px;
    border:0;
    background:transparent;
    color:var(--text-2);
    display:grid;place-items:center;
    cursor:pointer;
    transition:color .2s var(--ease),background .2s var(--ease);
  }
  .nav-search button:hover{color:var(--primary);background:var(--primary-tint);}
  .hot-links{
    display:flex;
    align-items:center;
    gap:8px;
    flex:0 0 auto;
  }
  .hot-link{
    padding:5px 12px;
    border-radius:999px;
    font-size:13px;
    color:var(--text-2);
    background:#F4EFE8;
    white-space:nowrap;
    transition:background .2s var(--ease),color .2s var(--ease);
  }
  .hot-link:hover{background:var(--primary-tint);color:var(--primary);}
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    height:44px;
    padding:0 24px;
    border-radius:var(--radius-btn);
    font-size:15px;
    font-weight:600;
    letter-spacing:.02em;
    border:1px solid transparent;
    cursor:pointer;
    white-space:nowrap;
    transition:transform .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
  }
  .btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 18px -12px rgba(240,86,43,.9);}
  .btn-primary:hover{background:var(--primary-hover);transform:translateY(-1px);}
  .btn-primary:active{background:var(--primary-active);transform:translateY(0);}
  .btn-ghost{background:transparent;color:var(--ink);border-color:var(--line-strong);}
  .btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-1px);}
  .btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.45);}
  .btn-outline-light:hover{border-color:#fff;background:rgba(255,255,255,.1);}
  .btn-sm{height:38px;padding:0 16px;font-size:14px;}
  .btn-lg{height:48px;padding:0 28px;font-size:16px;}
  .btn-block{width:100%;}

  .channel-bar{
    border-top:1px solid var(--line);
    background:var(--bg);
  }
  .site-header.is-stuck .channel-bar{background:#fff;}
  .channel-inner{
    display:flex;
    align-items:center;
    gap:26px;
    height:44px;
    overflow-x:auto;
    scrollbar-width:none;
  }
  .channel-inner::-webkit-scrollbar{display:none;}
  .channel-link{
    position:relative;
    flex:0 0 auto;
    font-size:14.5px;
    color:var(--text-2);
    line-height:44px;
    white-space:nowrap;
  }
  .channel-link::after{
    content:"";
    position:absolute;
    left:0;right:0;bottom:8px;
    height:2px;
    background:var(--primary);
    transform:scaleX(0);
    transform-origin:left center;
    transition:transform .22s var(--ease);
  }
  .channel-link:hover{color:var(--ink);}
  .channel-link:hover::after{transform:scaleX(1);}
  .channel-link.is-active{color:var(--primary);font-weight:600;}
  .channel-link.is-active::after{transform:scaleX(1);}
  .nav-toggle{
    display:none;
    width:44px;height:44px;
    border:1px solid var(--line);
    border-radius:10px;
    background:#fff;
    cursor:pointer;
    align-items:center;justify-content:center;
    flex:0 0 auto;
  }
  .nav-toggle span{
    display:block;width:18px;height:2px;background:var(--ink);
    position:relative;
  }
  .nav-toggle span::before,
  .nav-toggle span::after{
    content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);
  }
  .nav-toggle span::before{top:-6px;}
  .nav-toggle span::after{top:6px;}

  .drawer-mask{
    position:fixed;inset:0;
    background:rgba(22,25,30,.5);
    opacity:0;visibility:hidden;
    transition:opacity .2s var(--ease),visibility .2s var(--ease);
    z-index:90;
  }
  .drawer-mask.is-open{opacity:1;visibility:visible;}
  .drawer{
    position:fixed;top:0;right:0;bottom:0;
    width:min(84vw,340px);
    background:#fff;
    z-index:100;
    transform:translateX(100%);
    transition:transform .24s var(--ease);
    padding:22px 20px 32px;
    overflow-y:auto;
    display:flex;flex-direction:column;gap:18px;
  }
  .drawer.is-open{transform:translateX(0);}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;}
  .drawer-close{
    width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
    background:#fff;cursor:pointer;font-size:18px;line-height:1;color:var(--text-2);
  }
  .drawer-title{font-size:13px;color:var(--text-3);letter-spacing:.08em;}
  .drawer-list{display:flex;flex-direction:column;}
  .drawer-list a{
    padding:13px 4px;
    border-bottom:1px solid var(--line);
    font-size:15px;
    color:var(--ink);
  }
  .drawer-list a.is-active{color:var(--primary);font-weight:600;}
  .drawer-hot{display:flex;flex-wrap:wrap;gap:8px;}

  /* ---------- 面包屑 ---------- */
  .crumb-wrap{padding:22px 0 0;}
  .breadcrumb{
    display:flex;align-items:center;gap:8px;flex-wrap:wrap;
    font-size:13.5px;color:var(--text-3);
  }
  .breadcrumb a{color:var(--text-2);}
  .breadcrumb a:hover{color:var(--primary);}
  .breadcrumb .sep{color:var(--line-strong);}
  .breadcrumb .current{color:var(--text);font-weight:500;}

  /* ---------- Hero Banner ---------- */
  .hero-banner{
    position:relative;
    margin-top:20px;
    border-radius:var(--radius-lg);
    overflow:hidden;
    background:#E9E3DB;
    aspect-ratio:21/9;
    min-height:280px;
    box-shadow:var(--shadow-sm);
  }
  .hero-banner img{
    position:absolute;inset:0;
    width:100%;height:100%;
    object-fit:cover;
  }
  .hero-banner::after{
    content:"";
    position:absolute;inset:0;
    background:linear-gradient(100deg,rgba(22,25,30,.84) 0%,rgba(22,25,30,.62) 46%,rgba(22,25,30,.16) 100%);
  }
  .hero-content{
    position:relative;
    z-index:2;
    max-width:640px;
    padding:44px 48px;
    display:flex;
    flex-direction:column;
    justify-content:center;
    height:100%;
  }
  .hero-eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    width:fit-content;
    padding:5px 13px;
    border-radius:999px;
    font-size:12.5px;
    color:#fff;
    background:rgba(240,86,43,.92);
    letter-spacing:.04em;
    margin-bottom:16px;
  }
  .hero-banner h1{
    color:#fff;
    font-size:clamp(26px,3.4vw,42px);
    line-height:1.25;
    font-weight:700;
    letter-spacing:.01em;
  }
  .hero-sub{
    color:#E7E3DC;
    font-size:clamp(15px,1.5vw,18px);
    line-height:1.7;
    margin-top:14px;
    max-width:520px;
  }
  .hero-actions{
    display:flex;flex-wrap:wrap;gap:12px;
    margin-top:26px;
  }
  .hero-meta{
    display:flex;flex-wrap:wrap;gap:20px;
    margin-top:26px;
    color:#C9CDD3;
    font-size:13.5px;
  }
  .hero-meta strong{
    color:var(--cyan);
    font-size:20px;
    font-weight:700;
    margin-right:6px;
  }

  /* ---------- 通用板块 ---------- */
  .section{padding:76px 0 0;}
  .section-head{
    display:flex;
    align-items:flex-end;
    justify-content:space-between;
    gap:24px;
    margin-bottom:32px;
  }
  .section-head h2{
    font-size:clamp(23px,2.5vw,31px);
    font-weight:700;
    color:var(--ink);
    line-height:1.3;
    letter-spacing:.01em;
  }
  .section-desc{
    margin-top:10px;
    color:var(--text-2);
    font-size:15px;
    max-width:640px;
  }
  .text-link{
    display:inline-flex;
    align-items:center;
    gap:6px;
    font-size:14.5px;
    font-weight:600;
    color:var(--primary);
    position:relative;
    white-space:nowrap;
  }
  .text-link::after{
    content:"";
    position:absolute;left:0;right:22px;bottom:-3px;
    height:2px;background:currentColor;
    transform:scaleX(0);transform-origin:left center;
    transition:transform .22s var(--ease);
  }
  .text-link:hover::after{transform:scaleX(1);}
  .text-link .arrow{transition:transform .2s var(--ease);}
  .text-link:hover .arrow{transform:translateX(2px);}
  .tag{
    display:inline-flex;align-items:center;
    height:26px;padding:0 11px;
    border-radius:999px;
    font-size:12.5px;
    font-weight:600;
    letter-spacing:.02em;
  }
  .tag-primary{background:var(--primary-tint);color:#B8421D;}
  .tag-cyan{background:rgba(15,181,166,.12);color:#0A7C72;}
  .tag-line{border:1px solid var(--line-strong);color:var(--text-2);background:#fff;}

  /* ---------- 精选：1 大 2 小 ---------- */
  .featured-grid{
    display:grid;
    grid-template-columns:1.35fr 1fr;
    gap:24px;
    align-items:stretch;
  }
  .feature-main{
    position:relative;
    display:flex;
    flex-direction:column;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    overflow:hidden;
    box-shadow:var(--shadow-sm);
    transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
  }
  .feature-main:hover{
    transform:translateY(-2px);
    box-shadow:var(--shadow-card);
    border-color:#F7C9B8;
  }
  .feature-main .thumb{
    position:relative;
    aspect-ratio:16/10;
    background:#E9E3DB;
    overflow:hidden;
  }
  .feature-main .thumb img{
    width:100%;height:100%;object-fit:cover;
    transition:transform .3s var(--ease);
  }
  .feature-main:hover .thumb img{transform:scale(1.03);}
  .thumb-badge{
    position:absolute;left:16px;top:16px;
    background:rgba(255,255,255,.94);
    color:#B8421D;
    font-size:12.5px;font-weight:600;
    padding:5px 12px;border-radius:999px;
  }
  .feature-main .body{
    padding:24px;
    display:flex;flex-direction:column;gap:12px;
    flex:1 1 auto;
  }
  .feature-main h3{
    font-size:clamp(19px,2vw,23px);
    font-weight:700;
    color:var(--ink);
    line-height:1.45;
  }
  .feature-main p{
    color:var(--text-2);
    font-size:15px;
    line-height:1.75;
  }
  .feature-side{
    display:grid;
    grid-template-rows:1fr 1fr;
    gap:24px;
  }
  .side-card{
    display:grid;
    grid-template-columns:1fr 148px;
    gap:18px;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    padding:20px;
    box-shadow:var(--shadow-sm);
    transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
  }
  .side-card:hover{
    transform:translateY(-2px);
    box-shadow:var(--shadow-card);
    border-color:#F7C9B8;
  }
  .side-card .body{display:flex;flex-direction:column;gap:10px;}
  .side-card h3{
    font-size:17px;font-weight:600;color:var(--ink);line-height:1.5;
  }
  .side-card p{
    font-size:14px;color:var(--text-2);line-height:1.7;
    display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
  }
  .side-card .thumb{
    border-radius:12px;
    overflow:hidden;
    background:#E9E3DB;
    aspect-ratio:4/3;
  }
  .side-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
  .side-card:hover .thumb img{transform:scale(1.03);}

  /* ---------- 流程要点带 ---------- */
  .flow-band{
    margin-top:76px;
    background:var(--bg-alt);
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
    padding:64px 0;
  }
  .flow-grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:0;
    margin-top:36px;
    position:relative;
  }
  .flow-item{
    padding:0 22px;
    position:relative;
  }
  .flow-item + .flow-item{border-left:1px dashed var(--line-strong);}
  .flow-num{
    font-size:36px;
    font-weight:700;
    color:var(--primary);
    line-height:1;
    letter-spacing:.01em;
  }
  .flow-item h3{
    margin-top:14px;
    font-size:17px;
    font-weight:600;
    color:var(--ink);
  }
  .flow-item p{
    margin-top:8px;
    font-size:14px;
    color:var(--text-2);
    line-height:1.75;
  }
  .flow-dot{
    position:absolute;
    top:17px;left:-5px;
    width:9px;height:9px;
    border-radius:50%;
    background:var(--cyan);
    border:2px solid var(--bg-alt);
    display:none;
  }

  /* ---------- 时间线 ---------- */
  .timeline{
    margin-top:8px;
    position:relative;
    padding-left:96px;
  }
  .timeline::before{
    content:"";
    position:absolute;
    left:31px;top:12px;bottom:26px;
    width:0;
    border-left:1px dashed var(--line-strong);
  }
  .timeline-item{
    position:relative;
    padding:22px 0 22px 0;
    border-bottom:1px solid var(--line);
  }
  .timeline-item:last-child{border-bottom:0;}
  .timeline-date{
    position:absolute;
    left:-96px;top:22px;
    width:64px;
    text-align:center;
    background:#fff;
    border:1px solid var(--line);
    border-radius:12px;
    padding:6px 0 8px;
    box-shadow:var(--shadow-sm);
  }
  .timeline-date .m{
    display:block;font-size:11.5px;color:var(--text-3);letter-spacing:.06em;line-height:1.6;
  }
  .timeline-date .d{
    display:block;font-size:20px;font-weight:700;color:var(--primary);line-height:1.25;
  }
  .timeline-item h3{
    font-size:18px;
    font-weight:600;
    color:var(--ink);
    line-height:1.5;
  }
  .timeline-item h3 a:hover{color:var(--primary);}
  .timeline-item p{
    margin-top:8px;
    font-size:14.5px;
    color:var(--text-2);
    line-height:1.75;
    max-width:760px;
  }
  .timeline-foot{
    display:flex;align-items:center;gap:14px;flex-wrap:wrap;
    margin-top:12px;
  }
  .timeline-foot .stage{
    font-size:12.5px;
    color:#0A7C72;
    background:rgba(15,181,166,.12);
    border-radius:999px;
    padding:3px 11px;
  }
  .timeline-foot .time{font-size:12.5px;color:var(--text-3);}

  /* ---------- FAQ ---------- */
  .faq-section{padding-top:76px;}
  .faq-grid{
    display:grid;
    grid-template-columns:4fr 8fr;
    gap:48px;
    align-items:start;
  }
  .faq-intro h2{
    font-size:clamp(23px,2.5vw,31px);
    font-weight:700;
    color:var(--ink);
    line-height:1.32;
  }
  .faq-intro p{
    margin-top:14px;
    font-size:15px;
    color:var(--text-2);
    line-height:1.8;
  }
  .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;
    padding:20px 2px;
    background:transparent;
    border:0;
    text-align:left;
    cursor:pointer;
    font-size:17px;
    font-weight:600;
    color:var(--ink);
    line-height:1.5;
    transition:color .2s var(--ease);
  }
  .faq-q:hover{color:var(--primary);}
  .faq-item.is-open .faq-q{color:var(--primary);}
  .faq-icon{
    flex:0 0 auto;
    width:20px;height:20px;
    position:relative;
  }
  .faq-icon::before,
  .faq-icon::after{
    content:"";
    position:absolute;
    background:currentColor;
    border-radius:2px;
    transition:transform .22s var(--ease),opacity .22s var(--ease);
  }
  .faq-icon::before{left:0;top:9px;width:20px;height:2px;}
  .faq-icon::after{left:9px;top:0;width:2px;height:20px;}
  .faq-item.is-open .faq-icon::after{transform:rotate(90deg);opacity:0;}
  .faq-a{
    max-height:0;
    overflow:hidden;
    transition:max-height .26s var(--ease);
  }
  .faq-a p{
    padding:0 2px 20px;
    font-size:15px;
    line-height:1.75;
    color:var(--text-2);
    max-width:720px;
  }

  /* ---------- CTA ---------- */
  .cta-band{
    margin-top:76px;
    background:var(--ink);
    border-radius:var(--radius-lg);
    padding:52px;
    display:grid;
    grid-template-columns:1.05fr .95fr;
    gap:48px;
    align-items:center;
    position:relative;
    overflow:hidden;
  }
  .cta-band::after{
    content:"";
    position:absolute;
    right:-60px;bottom:-80px;
    width:280px;height:280px;
    border-radius:50%;
    background:radial-gradient(circle,rgba(240,86,43,.26),transparent 68%);
    pointer-events:none;
  }
  .cta-band h2{
    color:#fff;
    font-size:clamp(24px,2.6vw,32px);
    font-weight:700;
    line-height:1.3;
  }
  .cta-band .lead{
    margin-top:14px;
    color:#A9B0B8;
    font-size:15px;
    line-height:1.8;
    max-width:440px;
  }
  .cta-points{
    margin-top:24px;
    display:flex;flex-direction:column;gap:10px;
  }
  .cta-points li{
    display:flex;align-items:center;gap:10px;
    color:#E7E3DC;
    font-size:14.5px;
  }
  .check{
    width:18px;height:18px;
    flex:0 0 auto;
    border-radius:50%;
    background:rgba(15,181,166,.18);
    color:var(--cyan);
    display:grid;place-items:center;
    font-size:11px;
    font-weight:700;
  }
  .cta-form{
    position:relative;
    z-index:2;
    background:rgba(255,255,255,.04);
    border:1px solid rgba(255,255,255,.12);
    border-radius:16px;
    padding:24px;
    display:grid;
    gap:16px;
  }
  .field{display:flex;flex-direction:column;gap:7px;}
  .field label{
    font-size:13.5px;
    color:#A9B0B8;
    letter-spacing:.02em;
  }
  .field input,
  .field select{
    height:44px;
    border-radius:10px;
    border:1px solid rgba(255,255,255,.16);
    background:#fff;
    color:var(--ink);
    padding:0 14px;
    font-size:14.5px;
    outline:none;
    transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
  }
  .field input::placeholder{color:#B4B9BF;}
  .field input:focus,
  .field select:focus{
    border-color:var(--primary);
    box-shadow:0 0 0 3px rgba(240,86,43,.22);
  }
  .form-note{
    font-size:12.5px;
    color:#8A9099;
    line-height:1.6;
  }
  .form-tip{
    display:none;
    font-size:13px;
    color:var(--cyan);
  }
  .form-tip.is-visible{display:block;}

  /* ---------- 页脚 ---------- */
  .site-footer{
    margin-top:88px;
    background:var(--ink);
    color:#A9B0B8;
    padding:64px 0 28px;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.5fr 1fr 1fr 1.2fr;
    gap:40px;
  }
  .footer-brand .brand{margin-bottom:16px;}
  .footer-brand .brand-text{color:#fff;}
  .footer-brand p{
    font-size:14px;
    line-height:1.8;
    color:#A9B0B8;
    max-width:320px;
  }
  .footer-license{
    margin-top:14px;
    font-size:13px;
    color:#8A9099;
  }
  .footer-col h4{
    color:#fff;
    font-size:15px;
    font-weight:600;
    margin-bottom:16px;
    letter-spacing:.02em;
  }
  .footer-col ul{display:flex;flex-direction:column;gap:10px;}
  .footer-col a{
    font-size:14px;
    color:#A9B0B8;
    transition:color .2s var(--ease);
  }
  .footer-col a:hover{color:#fff;}
  .footer-contact li{
    display:flex;
    justify-content:space-between;
    gap:16px;
    font-size:13.5px;
    color:#A9B0B8;
    border-bottom:1px dashed rgba(255,255,255,.1);
    padding-bottom:9px;
  }
  .footer-contact li span:first-child{color:#7F868F;}
  .footer-bottom{
    margin-top:44px;
    padding-top:22px;
    border-top:1px solid rgba(255,255,255,.1);
    display:flex;
    justify-content:space-between;
    gap:20px;
    flex-wrap:wrap;
    font-size:13px;
    color:#8A9099;
  }

  .to-top{
    position:fixed;
    right:24px;bottom:24px;
    width:44px;height:44px;
    border-radius:50%;
    background:#fff;
    border:1px solid var(--primary);
    color:var(--primary);
    display:grid;place-items:center;
    cursor:pointer;
    opacity:0;visibility:hidden;
    transform:translateY(8px);
    transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s var(--ease),background .2s var(--ease);
    z-index:60;
    box-shadow:var(--shadow-sm);
  }
  .to-top.is-show{opacity:1;visibility:visible;transform:translateY(0);}
  .to-top:hover{background:var(--primary-tint);}

  /* ---------- 响应式 ---------- */
  @media (max-width:1100px){
    .hot-links{display:none;}
    .featured-grid{grid-template-columns:1fr;}
    .feature-side{grid-template-rows:auto;grid-template-columns:1fr 1fr;}
    .flow-grid{grid-template-columns:1fr 1fr;row-gap:32px;}
    .flow-item:nth-child(odd){border-left:0;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
    .cta-band{grid-template-columns:1fr;gap:32px;padding:40px;}
  }
  @media (max-width:1023px){
    .nav-toggle{display:inline-flex;}
    .nav-search{display:none;}
    .topbar{gap:12px;}
    .brand{margin-right:auto;}
    .topbar .btn-primary{height:38px;padding:0 16px;font-size:14px;}
  }
  @media (max-width:860px){
    .faq-grid{grid-template-columns:1fr;gap:24px;}
    .hero-banner{aspect-ratio:16/10;}
    .hero-content{padding:32px 26px;max-width:100%;}
    .feature-side{grid-template-columns:1fr;}
    .side-card{grid-template-columns:1fr 120px;}
  }
  @media (max-width:640px){
    .container{padding:0 20px;}
    .topbar .btn-primary{display:none;}
    .section{padding-top:52px;}
    .section-head{flex-direction:column;align-items:flex-start;gap:14px;}
    .flow-band{margin-top:52px;padding:44px 0;}
    .flow-grid{grid-template-columns:1fr;row-gap:26px;}
    .flow-item{padding:0 0 0 18px;border-left:1px dashed var(--line-strong);}
    .flow-item + .flow-item{border-left:1px dashed var(--line-strong);}
    .flow-num{font-size:30px;}
    .timeline{padding-left:0;}
    .timeline::before{display:none;}
    .timeline-item{padding:18px 0;}
    .timeline-date{
      position:static;
      display:inline-flex;
      align-items:center;
      gap:8px;
      width:auto;
      padding:4px 12px;
      border-radius:999px;
      margin-bottom:10px;
    }
    .timeline-date .m{display:inline;font-size:12px;}
    .timeline-date .d{display:inline;font-size:13px;}
    .faq-section{padding-top:52px;}
    .cta-band{margin-top:52px;padding:28px 22px;border-radius:16px;}
    .cta-form{padding:18px;}
    .footer-grid{grid-template-columns:1fr;gap:28px;}
    .site-footer{margin-top:56px;padding:44px 0 24px;}
    .footer-bottom{flex-direction:column;gap:8px;}
    .hero-meta{gap:16px;}
    .side-card{grid-template-columns:1fr;gap:14px;}
    .side-card .thumb{order:-1;aspect-ratio:16/9;}
  }

/* roulang page: category3 */
:root{
    --brand:#F0562B;
    --brand-hover:#D9451F;
    --brand-press:#BF3A18;
    --brand-tint:#FDEDE8;
    --ink:#16191E;
    --ink-2:#1A1D21;
    --muted:#5A6069;
    --weak:#8A9099;
    --bg:#FBF8F4;
    --card:#FFFFFF;
    --alt:#F4EFE8;
    --line:#E9E3DB;
    --line-strong:#D9D2C8;
    --teal:#0FB5A6;
    --dark-text:#F5F1EA;
    --dark-sub:#A9B0B8;
    --r-card:16px;
    --r-card-lg:20px;
    --r-btn:10px;
    --r-pill:999px;
    --shadow-1:0 1px 2px rgba(20,24,29,.06);
    --shadow-2:0 12px 28px -12px rgba(20,24,29,.18);
    --dur:200ms;
    --header-h:109px;
    --header-h-sm:95px;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
    background:var(--bg);
    color:var(--ink-2);
    font-size:16px;
    line-height:1.8;
    letter-spacing:0;
  }
  img{max-width:100%;display:block;border-style:none;}
  a{color:inherit;text-decoration:none;}
  button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
  button{cursor:pointer;}
  ul,ol{margin:0;padding:0;list-style:none;}
  h1,h2,h3,h4,p{margin:0;}
  a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
    outline:2px solid var(--brand);
    outline-offset:2px;
    border-radius:6px;
  }

  body .container{
    width:100%;
    max-width:1200px;
    margin-left:auto;
    margin-right:auto;
    padding-left:24px;
    padding-right:24px;
  }

  /* ---------- 顶部导航 ---------- */
  .site-header{
    position:sticky;
    top:0;
    z-index:60;
    background:var(--bg);
    border-bottom:1px solid var(--line);
    transition:background var(--dur) ease-out, box-shadow var(--dur) ease-out;
  }
  .site-header.is-condensed{
    background:#FFFFFF;
    box-shadow:0 6px 18px -10px rgba(20,24,29,.22);
  }
  .topbar-inner{
    display:flex;
    align-items:center;
    gap:18px;
    height:64px;
    transition:height var(--dur) ease-out;
  }
  .site-header.is-condensed .topbar-inner{height:56px;}

  .brand{
    display:inline-flex;
    align-items:center;
    gap:10px;
    flex:none;
    min-height:44px;
  }
  .brand-mark{
    width:34px;height:34px;
    border-radius:10px;
    background:var(--brand);
    color:#fff;
    display:grid;
    place-items:center;
    font-weight:800;
    font-size:16px;
    letter-spacing:.02em;
    box-shadow:var(--shadow-1);
  }
  .brand-text{
    font-size:17px;
    font-weight:800;
    color:var(--ink);
    letter-spacing:.01em;
    white-space:nowrap;
  }

  .nav-search{
    flex:1 1 auto;
    max-width:400px;
    display:flex;
    align-items:center;
    height:40px;
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--r-btn);
    padding-left:14px;
    transition:border-color var(--dur) ease-out, box-shadow var(--dur) ease-out;
  }
  .nav-search:focus-within{
    border-color:var(--brand);
    box-shadow:0 0 0 3px rgba(240,86,43,.12);
  }
  .nav-search input{
    flex:1;
    min-width:0;
    height:100%;
    border:0;
    outline:none;
    background:transparent;
    font-size:14px;
    color:var(--ink-2);
  }
  .nav-search input::placeholder{color:var(--weak);}
  .nav-search button{
    width:44px;height:100%;
    border:0;
    background:transparent;
    color:var(--muted);
    display:grid;
    place-items:center;
    border-radius:0 var(--r-btn) var(--r-btn) 0;
    transition:color var(--dur) ease-out, background var(--dur) ease-out;
  }
  .nav-search button:hover{color:var(--brand);background:var(--brand-tint);}

  .topbar-right{
    margin-left:auto;
    display:flex;
    align-items:center;
    gap:10px;
  }
  .hot-tag{
    font-size:13px;
    line-height:1;
    padding:7px 12px;
    border-radius:var(--r-pill);
    background:#fff;
    border:1px solid var(--line);
    color:var(--muted);
    white-space:nowrap;
    transition:all var(--dur) ease-out;
  }
  .hot-tag:hover{
    background:var(--brand-tint);
    border-color:rgba(240,86,43,.35);
    color:var(--brand);
  }

  .nav-toggle{
    display:none;
    width:44px;height:44px;
    align-items:center;
    justify-content:center;
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--r-btn);
    color:var(--ink);
  }
  .nav-toggle:hover{border-color:var(--brand);color:var(--brand);}

  .channel-bar{
    border-top:1px solid var(--line);
    background:transparent;
  }
  .channel-inner{
    display:flex;
    align-items:center;
    gap:28px;
    height:44px;
    overflow-x:auto;
    scrollbar-width:none;
    transition:height var(--dur) ease-out;
  }
  .channel-inner::-webkit-scrollbar{display:none;}
  .site-header.is-condensed .channel-inner{height:38px;}
  .channel-link{
    position:relative;
    display:inline-flex;
    align-items:center;
    height:44px;
    font-size:15px;
    color:var(--muted);
    white-space:nowrap;
    border-bottom:2px solid transparent;
    transition:color var(--dur) ease-out, border-color var(--dur) ease-out;
  }
  .site-header.is-condensed .channel-link{height:38px;}
  .channel-link:hover{color:var(--ink);}
  .channel-link.is-active{
    color:var(--brand);
    font-weight:600;
    border-bottom-color:var(--brand);
  }

  /* ---------- 抽屉 ---------- */
  .drawer-mask{
    position:fixed;
    inset:0;
    background:rgba(22,25,30,.5);
    z-index:80;
    opacity:0;
    pointer-events:none;
    transition:opacity var(--dur) ease-out;
  }
  .drawer-mask.is-open{opacity:1;pointer-events:auto;}
  .drawer{
    position:fixed;
    top:0;right:0;bottom:0;
    width:min(320px,86vw);
    background:#fff;
    z-index:90;
    transform:translateX(100%);
    transition:transform 240ms ease-out;
    padding:22px;
    overflow-y:auto;
    box-shadow:-12px 0 30px -12px rgba(20,24,29,.3);
    display:flex;
    flex-direction:column;
    gap:22px;
  }
  .drawer.is-open{transform:translateX(0);}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;}
  .drawer-close{
    width:44px;height:44px;
    display:grid;place-items:center;
    border:1px solid var(--line);
    border-radius:var(--r-btn);
    background:#fff;
    color:var(--muted);
  }
  .drawer-close:hover{border-color:var(--brand);color:var(--brand);}
  .drawer-title{font-size:13px;font-weight:600;color:var(--weak);letter-spacing:.04em;}
  .drawer-nav{display:flex;flex-direction:column;}
  .drawer-nav a{
    display:flex;
    align-items:center;
    min-height:48px;
    padding:0 12px;
    border-radius:10px;
    font-size:16px;
    color:var(--ink-2);
    border-bottom:1px solid var(--line);
  }
  .drawer-nav a:last-child{border-bottom:0;}
  .drawer-nav a:hover,.drawer-nav a.is-active{background:var(--brand-tint);color:var(--brand);}
  .drawer-hot{display:flex;flex-wrap:wrap;gap:8px;}

  /* ---------- 通用 ---------- */
  .breadcrumb{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:8px;
    padding:22px 0 0;
    font-size:14px;
    color:var(--weak);
  }
  .breadcrumb a{color:var(--muted);transition:color var(--dur) ease-out;}
  .breadcrumb a:hover{color:var(--brand);}
  .breadcrumb .sep{color:var(--line-strong);}
  .breadcrumb .current{color:var(--ink-2);font-weight:600;}

  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    min-height:44px;
    padding:0 24px;
    border-radius:var(--r-btn);
    font-size:15px;
    font-weight:600;
    letter-spacing:.02em;
    border:1px solid transparent;
    transition:background var(--dur) ease-out, color var(--dur) ease-out, border-color var(--dur) ease-out, transform var(--dur) ease-out, box-shadow var(--dur) ease-out;
  }
  .btn-primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-1);}
  .btn-primary:hover{background:var(--brand-hover);transform:translateY(-1px);box-shadow:var(--shadow-2);}
  .btn-primary:active{background:var(--brand-press);transform:translateY(0);}
  .btn-outline{background:#fff;border-color:var(--line-strong);color:var(--ink);}
  .btn-outline:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);}
  .btn-ghost{background:transparent;border-color:rgba(255,255,255,.42);color:#fff;}
  .btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.08);}
  .btn-sm{min-height:38px;padding:0 18px;font-size:14px;}

  .badge{
    display:inline-flex;
    align-items:center;
    gap:6px;
    height:26px;
    padding:0 12px;
    border-radius:var(--r-pill);
    font-size:12.5px;
    font-weight:600;
    background:var(--brand-tint);
    color:var(--brand);
    border:1px solid rgba(240,86,43,.2);
  }
  .badge-teal{background:rgba(15,181,166,.1);color:#0B8E82;border-color:rgba(15,181,166,.28);}

  .section{padding:72px 0;}
  .section-alt{background:var(--alt);}
  .section-head{max-width:720px;margin-bottom:32px;}
  .section-title{
    font-size:clamp(24px,2.6vw,32px);
    font-weight:700;
    line-height:1.3;
    letter-spacing:.01em;
    color:var(--ink);
  }
  .section-desc{margin-top:12px;font-size:16px;color:var(--muted);line-height:1.8;max-width:720px;}

  /* ---------- Hero ---------- */
  .hero{
    position:relative;
    overflow:hidden;
    padding:56px 0 44px;
    border-bottom:1px solid var(--line);
  }
  .hero::before{
    content:"";
    position:absolute;
    inset:0;
    background-image:url('/assets/images/backpic/back-1.png');
    background-size:cover;
    background-position:center;
    opacity:.12;
    pointer-events:none;
  }
  .hero::after{
    content:"";
    position:absolute;
    inset:0;
    background-image:linear-gradient(rgba(22,25,30,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(22,25,30,.045) 1px,transparent 1px);
    background-size:32px 32px;
    opacity:.5;
    pointer-events:none;
  }
  .hero-inner{position:relative;text-align:center;max-width:860px;margin:0 auto;}
  .hero-title{
    font-size:clamp(28px,4vw,44px);
    font-weight:700;
    line-height:1.25;
    letter-spacing:.01em;
    color:var(--ink);
  }
  .hero-title .accent{color:var(--brand);}
  .hero-sub{
    margin-top:16px;
    font-size:20px;
    line-height:1.7;
    color:var(--muted);
  }
  .hero-meta{
    margin-top:18px;
    font-size:14px;
    color:var(--weak);
    font-variant-numeric:tabular-nums;
  }
  .kb-search{
    display:flex;
    align-items:center;
    gap:8px;
    max-width:640px;
    margin:28px auto 0;
    height:56px;
    background:#fff;
    border:1px solid var(--line);
    border-radius:12px;
    padding-left:18px;
    box-shadow:var(--shadow-1);
    transition:border-color var(--dur) ease-out, box-shadow var(--dur) ease-out;
  }
  .kb-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(240,86,43,.12);}
  .kb-search input{flex:1;min-width:0;height:100%;border:0;outline:none;background:transparent;font-size:16px;}
  .kb-search input::placeholder{color:var(--weak);}
  .kb-search .btn{margin-right:6px;min-height:44px;}
  .hero-tags{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-top:22px;}
  .hero-tags a{
    font-size:13.5px;
    padding:7px 14px;
    border-radius:var(--r-pill);
    background:#fff;
    border:1px solid var(--line);
    color:var(--muted);
    transition:all var(--dur) ease-out;
  }
  .hero-tags a:hover{color:var(--brand);border-color:rgba(240,86,43,.35);background:var(--brand-tint);}

  /* ---------- 锚点条 ---------- */
  .anchor-strip{
    position:sticky;
    top:var(--header-h);
    z-index:40;
    background:rgba(251,248,244,.97);
    border-bottom:1px solid var(--line);
    transition:top var(--dur) ease-out;
  }
  body.is-condensed .anchor-strip{top:var(--header-h-sm);}
  .anchor-inner{
    display:flex;
    align-items:center;
    gap:10px;
    padding:12px 0;
    overflow-x:auto;
    scrollbar-width:none;
  }
  .anchor-inner::-webkit-scrollbar{display:none;}
  .anchor-pill{
    flex:none;
    font-size:14px;
    padding:8px 16px;
    border-radius:var(--r-pill);
    background:#fff;
    border:1px solid var(--line);
    color:var(--muted);
    transition:all var(--dur) ease-out;
  }
  .anchor-pill:hover{color:var(--brand);border-color:var(--brand);}
  .anchor-pill.is-active{background:var(--brand);border-color:var(--brand);color:#fff;}

  /* ---------- 知识库双栏 ---------- */
  .kb-board{
    display:grid;
    grid-template-columns:1fr 1fr;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--r-card-lg);
    box-shadow:var(--shadow-1);
    overflow:hidden;
  }
  .kb-group{padding:28px 32px 12px;}
  .kb-group:nth-child(2n){border-left:1px solid var(--line);}
  .kb-group:nth-child(n+3){border-top:1px solid var(--line);}
  .kb-group-head{display:flex;align-items:center;gap:10px;margin-bottom:8px;}
  .kb-group-title{
    font-size:20px;
    font-weight:600;
    line-height:1.45;
    color:var(--ink);
    scroll-margin-top:160px;
  }
  .kb-group-note{font-size:13.5px;color:var(--weak);margin-bottom:6px;}
  .kb-item{
    display:flex;
    align-items:flex-start;
    gap:12px;
    padding:15px 8px;
    border-bottom:1px solid var(--line);
    transition:background var(--dur) ease-out, transform var(--dur) ease-out;
  }
  .kb-group .kb-item:last-child{border-bottom:0;}
  .kb-item:hover{background:var(--bg);transform:translateX(2px);}
  .kb-num{
    flex:none;
    width:26px;
    font-size:13px;
    font-weight:700;
    color:var(--brand);
    font-variant-numeric:tabular-nums;
    line-height:1.85;
  }
  .kb-body{flex:1;min-width:0;}
  .kb-q{display:block;font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;}
  .kb-d{display:block;margin-top:4px;font-size:14px;color:var(--muted);line-height:1.7;}
  .kb-arrow{
    flex:none;
    color:var(--weak);
    font-size:15px;
    line-height:1.9;
    transition:color var(--dur) ease-out, transform var(--dur) ease-out;
  }
  .kb-item:hover .kb-arrow{color:var(--brand);transform:translateX(2px);}

  /* ---------- 场景卡 ---------- */
  .scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
  .scene-card{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    padding:24px;
    box-shadow:var(--shadow-1);
    transition:transform var(--dur) ease-out, box-shadow var(--dur) ease-out, border-color var(--dur) ease-out;
  }
  .scene-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(240,86,43,.35);}
  .scene-icon{
    width:44px;height:44px;
    border-radius:12px;
    display:grid;place-items:center;
    background:var(--brand-tint);
    color:var(--brand);
    font-weight:700;
    font-size:16px;
    margin-bottom:14px;
    font-variant-numeric:tabular-nums;
  }
  .scene-card h3{font-size:19px;font-weight:600;color:var(--ink);line-height:1.45;}
  .scene-card p{margin-top:10px;font-size:15px;color:var(--muted);line-height:1.75;}
  .scene-card .scene-link{
    display:inline-flex;
    align-items:center;
    gap:6px;
    margin-top:16px;
    font-size:14px;
    font-weight:600;
    color:var(--brand);
  }
  .scene-card .scene-link::after{content:"→";transition:transform var(--dur) ease-out;}
  .scene-card:hover .scene-link::after{transform:translateX(2px);}

  /* ---------- 流程 ---------- */
  .flow-wrap{display:grid;grid-template-columns:0.95fr 1.05fr;gap:48px;align-items:center;}
  .flow-figure{
    border-radius:var(--r-card-lg);
    overflow:hidden;
    background:var(--line);
    border:1px solid var(--line);
    box-shadow:var(--shadow-1);
    aspect-ratio:4/3;
  }
  .flow-figure img{width:100%;height:100%;object-fit:cover;transition:transform 240ms ease-out;}
  .flow-figure:hover img{transform:scale(1.03);}
  .flow-steps{position:relative;padding-left:26px;}
  .flow-steps::before{
    content:"";
    position:absolute;
    left:9px;top:12px;bottom:12px;
    width:0;
    border-left:2px dashed rgba(15,181,166,.55);
  }
  .flow-step{position:relative;padding:0 0 26px 0;}
  .flow-step:last-child{padding-bottom:0;}
  .flow-step::before{
    content:"";
    position:absolute;
    left:-26px;top:8px;
    width:12px;height:12px;
    border-radius:50%;
    background:#fff;
    border:2px solid var(--teal);
  }
  .flow-step h3{font-size:18px;font-weight:600;color:var(--ink);line-height:1.5;}
  .flow-step h3 span{
    font-size:13px;
    font-weight:700;
    color:var(--teal);
    margin-right:8px;
    font-variant-numeric:tabular-nums;
  }
  .flow-step p{margin-top:6px;font-size:15px;color:var(--muted);line-height:1.75;}

  /* ---------- FAQ ---------- */
  .faq-wrap{display:grid;grid-template-columns:4fr 8fr;gap:48px;}
  .faq-aside h2{font-size:clamp(24px,2.6vw,32px);font-weight:700;line-height:1.3;color:var(--ink);}
  .faq-aside p{margin-top:12px;font-size:15px;color:var(--muted);line-height:1.8;}
  .faq-aside .aside-link{
    display:inline-flex;align-items:center;gap:6px;
    margin-top:18px;font-size:15px;font-weight:600;color:var(--brand);
  }
  .faq-aside .aside-link::after{content:"→";transition:transform var(--dur) ease-out;}
  .faq-aside .aside-link:hover::after{transform:translateX(2px);}
  .faq-list{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:6px 24px;box-shadow:var(--shadow-1);}
  .faq-item{border-bottom:1px solid var(--line);}
  .faq-item:last-child{border-bottom:0;}
  .faq-q{
    width:100%;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    padding:20px 0;
    background:transparent;
    border:0;
    text-align:left;
    font-size:17px;
    font-weight:600;
    line-height:1.5;
    color:var(--ink);
    transition:color var(--dur) ease-out;
  }
  .faq-q:hover{color:var(--brand);}
  .faq-item.is-open .faq-q{color:var(--brand);}
  .faq-icon{
    flex:none;
    width:22px;height:22px;
    display:grid;place-items:center;
    font-size:20px;
    line-height:1;
    color:var(--muted);
    transition:transform var(--dur) ease-out, color var(--dur) ease-out;
  }
  .faq-item.is-open .faq-icon{transform:rotate(45deg);color:var(--brand);}
  .faq-a{max-height:0;overflow:hidden;transition:max-height 240ms ease-out;}
  .faq-a p{padding:0 0 20px;font-size:15px;color:var(--muted);line-height:1.75;max-width:640px;}

  /* ---------- CTA ---------- */
  .cta-band{
    background:var(--ink);
    border-radius:var(--r-card-lg);
    padding:56px;
    display:grid;
    grid-template-columns:1.05fr 0.95fr;
    gap:44px;
    color:var(--dark-text);
    position:relative;
    overflow:hidden;
  }
  .cta-band::after{
    content:"";
    position:absolute;
    right:-60px;bottom:-60px;
    width:220px;height:220px;
    background:rgba(240,86,43,.16);
    transform:rotate(24deg);
    border-radius:36px;
    pointer-events:none;
  }
  .cta-band h2{font-size:clamp(24px,2.6vw,32px);font-weight:700;line-height:1.3;color:#fff;position:relative;}
  .cta-band .cta-desc{margin-top:14px;font-size:16px;color:var(--dark-sub);line-height:1.8;max-width:420px;position:relative;}
  .cta-points{margin-top:22px;display:flex;flex-direction:column;gap:12px;position:relative;}
  .cta-points li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:#E7E2D9;}
  .cta-points .tick{
    flex:none;width:20px;height:20px;border-radius:50%;
    background:rgba(15,181,166,.16);
    color:var(--teal);
    display:grid;place-items:center;
    font-size:12px;font-weight:700;
    margin-top:2px;
  }
  .cta-form{position:relative;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.12);border-radius:var(--r-card);padding:24px;}
  .form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
  .form-field{margin-bottom:16px;}
  .form-field label{display:block;font-size:14px;color:var(--dark-sub);margin-bottom:6px;}
  .form-field input,.form-field select{
    width:100%;
    height:44px;
    padding:0 14px;
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--r-btn);
    color:var(--ink-2);
    font-size:15px;
    transition:border-color var(--dur) ease-out, box-shadow var(--dur) ease-out;
  }
  .form-field input::placeholder{color:var(--weak);}
  .form-field input:focus,.form-field select:focus{
    outline:none;
    border-color:var(--brand);
    box-shadow:0 0 0 3px rgba(240,86,43,.18);
  }
  .select-wrap{position:relative;}
  .select-wrap select{appearance:none;-webkit-appearance:none;padding-right:38px;}
  .select-wrap::after{
    content:"▾";
    position:absolute;
    right:14px;top:50%;
    transform:translateY(-50%);
    color:var(--muted);
    font-size:13px;
    pointer-events:none;
  }
  .cta-form .btn{width:100%;min-height:48px;}
  .form-tip{margin-top:12px;font-size:13px;color:var(--dark-sub);line-height:1.6;}
  .form-msg{
    margin-top:12px;
    font-size:14px;
    color:var(--teal);
    min-height:20px;
  }

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--ink);color:var(--dark-text);padding:64px 0 28px;margin-top:72px;}
  .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
  .footer-brand .brand{margin-bottom:14px;}
  .site-footer .brand-text{color:#fff;}
  .footer-brand p{font-size:14px;color:var(--dark-sub);line-height:1.8;max-width:320px;}
  .footer-license{margin-top:12px;font-size:13px;color:var(--weak);}
  .footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px;}
  .footer-col ul{display:flex;flex-direction:column;gap:10px;}
  .footer-col a{font-size:14px;color:var(--dark-sub);transition:color var(--dur) ease-out;}
  .footer-col a:hover{color:var(--brand);}
  .footer-contact li{display:flex;gap:12px;font-size:14px;color:var(--dark-sub);}
  .footer-contact li span:first-child{color:var(--weak);flex:none;}
  .footer-bottom{
    margin-top:40px;
    padding-top:20px;
    border-top:1px solid rgba(255,255,255,.12);
    display:flex;
    flex-wrap:wrap;
    justify-content:space-between;
    gap:12px;
    font-size:13px;
    color:var(--weak);
  }

  .back-top{
    position:fixed;
    right:22px;bottom:22px;
    width:44px;height:44px;
    border-radius:50%;
    background:#fff;
    border:1px solid var(--brand);
    color:var(--brand);
    display:grid;place-items:center;
    z-index:50;
    opacity:0;
    pointer-events:none;
    transform:translateY(6px);
    transition:opacity var(--dur) ease-out, transform var(--dur) ease-out, background var(--dur) ease-out;
    box-shadow:var(--shadow-1);
  }
  .back-top.is-visible{opacity:1;pointer-events:auto;transform:translateY(0);}
  .back-top:hover{background:var(--brand);color:#fff;}

  /* ---------- 响应式 ---------- */
  @media (max-width:1023px){
    body .container{padding-left:20px;padding-right:20px;}
    .nav-search,.hot-tag{display:none;}
    .nav-toggle{display:inline-flex;}
    .topbar-right{gap:8px;}
    .section{padding:56px 0;}
    .kb-board{grid-template-columns:1fr;}
    .kb-group{padding:24px 22px 10px;}
    .kb-group:nth-child(2n){border-left:0;}
    .kb-group:nth-child(n+2){border-top:1px solid var(--line);}
    .scene-grid{grid-template-columns:1fr 1fr;}
    .flow-wrap{grid-template-columns:1fr;gap:32px;}
    .faq-wrap{grid-template-columns:1fr;gap:28px;}
    .cta-band{grid-template-columns:1fr;padding:36px;gap:28px;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
    .site-footer{margin-top:56px;padding-top:48px;}
  }
  @media (max-width:767px){
    :root{--header-h:105px;--header-h-sm:93px;}
    .hero{padding:40px 0 34px;}
    .hero-sub{font-size:17px;}
    .kb-search{height:52px;padding-left:14px;}
    .kb-search input{font-size:15px;}
    .scene-grid{grid-template-columns:1fr;}
    .form-row{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr;}
    .footer-bottom{flex-direction:column;}
    .cta-band{padding:26px;}
    .cta-form{padding:18px;}
    .faq-list{padding:4px 18px;}
  }
  @media (max-width:520px){
    .brand-text{font-size:15px;}
    .brand-mark{width:30px;height:30px;font-size:14px;}
    .channel-inner{gap:20px;}
    .channel-link{font-size:14px;}
    .kb-search .btn{padding:0 16px;font-size:14px;}
    .section{padding:44px 0;}
    .kb-q{font-size:15px;}
    .kb-d{font-size:13.5px;}
    .hero-tags a{font-size:13px;padding:6px 12px;}
  }