/* roulang page: index */
/* ================= 设计变量 ================= */
:root{
  --ink:#0E1214;
  --ink-2:#1B2124;
  --paper:#F7F5F1;
  --paper-2:#EFEBE4;
  --accent:#E4572E;
  --accent-dark:#C9481F;
  --accent-2:#2E6E63;
  --muted:#6E7679;
  --danger:#C0392B;
  --line:rgba(14,18,20,0.10);
  --line-strong:rgba(14,18,20,0.18);
  --shadow-1:0 1px 2px rgba(14,18,20,.05);
  --shadow-2:0 8px 24px rgba(14,18,20,.07);
  --shadow-3:0 20px 48px rgba(14,18,20,.12);
  --r-card:20px;
  --r-btn:999px;
  --r-input:12px;
  --r-img:14px;
  --r-block:24px;
  --container:1200px;
  --font:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,"Liberation Mono",monospace;
}

/* ================= reset / base ================= */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:17px;
  line-height:1.9;
  color:var(--ink);
  background:var(--paper);
  overflow-x:hidden;
}
body.drawer-open{overflow:hidden;}
h1,h2,h3,h4{margin:0;font-weight:700;}
p{margin:0;}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,textarea,select{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
::selection{background:rgba(228,87,46,.22);}
:focus-visible{outline:3px solid rgba(228,87,46,.55);outline-offset:2px;border-radius:6px;}

/* ================= 容器与排版 ================= */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 48px;}
.h1{font-size:clamp(38px,5.6vw,76px);font-weight:800;line-height:1.06;letter-spacing:-0.02em;}
.h2{font-size:clamp(26px,3vw,40px);font-weight:700;line-height:1.18;letter-spacing:-0.01em;}
.h3{font-size:19px;font-weight:600;line-height:1.4;}
.lead{font-size:18px;line-height:1.8;color:var(--muted);}
.body-text{font-size:17px;line-height:1.9;max-width:38em;}
.muted{color:var(--muted);}
.eyebrow{
  display:inline-block;
  font-size:12px;
  font-weight:600;
  letter-spacing:.16em;
  color:var(--accent);
  text-transform:uppercase;
}
.section{padding:112px 0;border-top:1px solid var(--line);}
.section--plain{border-top:0;}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:56px;}
.section-head .h2{max-width:22em;}
.sec-mark{display:flex;align-items:baseline;gap:20px;margin-bottom:18px;}
.sec-num{font-size:clamp(38px,5.4vw,78px);font-weight:800;line-height:1;color:var(--accent);opacity:.18;letter-spacing:-0.04em;}
.rule-flex{display:flex;align-items:center;gap:18px;}
.rule-flex .line{flex:1;height:1px;background:var(--line);}

/* ================= 按钮 ================= */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  min-height:48px;padding:0 26px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:600;
  letter-spacing:.02em;
  transition:transform .25s cubic-bezier(.22,.61,.36,1),box-shadow .25s,background-color .25s,color .25s,border-color .25s;
  white-space:nowrap;
}
.btn-primary{background:var(--accent);color:var(--paper);box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--accent-dark);transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{border:1px solid var(--ink);color:var(--ink);background:transparent;}
.btn-ghost:hover{background:var(--ink);color:var(--paper);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-light{border:1px solid rgba(247,245,241,.5);color:var(--paper);background:transparent;}
.btn-light:hover{background:var(--paper);color:var(--ink);}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn:disabled,.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}
.link-more{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:var(--ink);
  border-bottom:1px solid var(--line-strong);
  padding-bottom:2px;
  transition:color .25s,border-color .25s;
}
.link-more svg{transition:transform .25s;}
.link-more:hover{color:var(--accent);border-color:var(--accent);}
.link-more:hover svg{transform:translateX(4px);}

/* ================= 导航 Dock ================= */
.dock-wrap{position:sticky;top:24px;z-index:80;padding:0 24px;}
.dock{
  width:min(1160px,100%);
  margin:0 auto;
  height:64px;
  display:flex;align-items:center;gap:20px;
  padding:0 12px 0 26px;
  border-radius:var(--r-btn);
  background:rgba(247,245,241,.82);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--line);
  box-shadow:var(--shadow-2);
  transition:height .3s,background-color .3s,box-shadow .3s;
}
.dock.is-scrolled{height:56px;background:rgba(247,245,241,.94);box-shadow:var(--shadow-3);}
.dock-logo{font-size:18px;font-weight:800;letter-spacing:-0.01em;white-space:nowrap;}
.dock-logo em{font-style:normal;color:var(--accent);}
.dock-nav{display:flex;align-items:center;gap:6px;margin-left:14px;}
.dock-nav a{
  position:relative;
  padding:8px 14px;
  font-size:14.5px;font-weight:500;
  color:var(--muted);
  border-radius:var(--r-btn);
  transition:color .25s;
}
.dock-nav a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .3s cubic-bezier(.22,.61,.36,1);
  border-radius:2px;
}
.dock-nav a:hover{color:var(--ink);}
.dock-nav a:hover::after{transform:scaleX(1);}
.dock-nav a.is-active{color:var(--ink);font-weight:600;}
.dock-nav a.is-active::after{transform:scaleX(1);}
.dock-right{margin-left:auto;display:flex;align-items:center;gap:10px;}
.icon-btn{
  width:40px;height:40px;border-radius:var(--r-btn);
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--ink);background:transparent;
  transition:border-color .25s,background-color .25s,color .25s;
}
.icon-btn:hover{border-color:var(--ink);background:var(--ink);color:var(--paper);}
.dock-burger{display:none;}

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,18,20,.5);
  opacity:0;visibility:hidden;transition:opacity .3s,visibility .3s;z-index:90;
}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(340px,86vw);
  background:var(--paper);z-index:95;
  padding:28px 24px;
  transform:translateX(102%);
  transition:transform .36s cubic-bezier(.22,.61,.36,1);
  display:flex;flex-direction:column;gap:22px;
  box-shadow:var(--shadow-3);
}
body.drawer-open .drawer{transform:translateX(0);}
body.drawer-open .drawer-mask{opacity:1;visibility:visible;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-title{font-size:16px;font-weight:800;}
.drawer-nav{display:flex;flex-direction:column;gap:4px;}
.drawer-nav a{
  padding:14px 12px;border-radius:14px;font-size:16px;font-weight:500;color:var(--ink);
  border-bottom:1px solid var(--line);
}
.drawer-nav a.is-active{color:var(--accent);font-weight:700;}
.drawer-search{display:flex;gap:8px;}

/* ================= Hero ================= */
.hero{padding:76px 0 96px;}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:64px;align-items:center;}
.hero-eyebrow{display:flex;align-items:center;gap:14px;margin-bottom:26px;}
.hero-eyebrow .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);}
.hero-eyebrow .tag{font-size:12px;font-weight:600;letter-spacing:.16em;color:var(--muted);text-transform:uppercase;}
.hero .h1{margin-bottom:24px;}
.hero .h1 .hl{color:var(--accent);}
.hero-sub{font-size:17.5px;line-height:1.85;color:var(--muted);max-width:32em;margin-bottom:34px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:44px;}
.hero-metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;border-top:1px solid var(--line);padding-top:26px;}
.hero-metrics .m-num{font-family:var(--mono);font-size:30px;font-weight:700;line-height:1.1;letter-spacing:-0.02em;}
.hero-metrics .m-num span{font-size:16px;color:var(--accent);}
.hero-metrics .m-txt{font-size:13px;color:var(--muted);line-height:1.6;margin-top:6px;}
.hero-media{position:relative;}
.hero-media .frame{
  aspect-ratio:4/3;border-radius:var(--r-block);overflow:hidden;
  background:var(--paper-2);box-shadow:var(--shadow-2);
}
.hero-media .frame img{width:100%;height:100%;object-fit:cover;}
.float-card{
  position:absolute;left:-28px;bottom:34px;
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:18px;
  box-shadow:var(--shadow-3);
  padding:18px 22px;
  min-width:210px;
}
.float-card .fc-num{font-family:var(--mono);font-size:28px;font-weight:700;color:var(--accent);line-height:1.1;}
.float-card .fc-txt{font-size:13px;color:var(--muted);margin-top:4px;}

/* ================= 信任条 ================= */
.trust{padding:32px 0 56px;}
.trust-inner{display:flex;flex-wrap:wrap;gap:14px 40px;align-items:center;justify-content:space-between;}
.trust-inner span{
  font-size:12.5px;font-weight:600;letter-spacing:.22em;color:var(--muted);
  text-transform:uppercase;
}

/* ================= 痛点 02 ================= */
.pain-grid{display:grid;grid-template-columns:4fr 8fr;gap:64px;align-items:start;}
.pain-side{position:sticky;top:120px;}
.pain-side .h2{margin-bottom:18px;}
.pain-side p{font-size:16px;color:var(--muted);max-width:24em;}
.pain-list{border-top:1px solid var(--line);}
.pain-item{
  display:grid;grid-template-columns:64px 1fr;gap:24px;
  padding:30px 0;border-bottom:1px solid var(--line);
}
.pain-item .pi-num{
  font-family:var(--mono);font-size:14px;font-weight:700;color:var(--accent);
  padding-top:5px;letter-spacing:.04em;
}
.pain-item .h3{margin-bottom:10px;}
.pain-item p{font-size:15.5px;line-height:1.8;color:var(--muted);max-width:40em;}

/* ================= 解决方案 03 ================= */
.solve-row{display:grid;grid-template-columns:6fr 6fr;gap:64px;align-items:center;}
.solve-row + .solve-row{margin-top:96px;}
.solve-row.is-reverse .solve-media{order:2;}
.solve-media .frame{
  aspect-ratio:16/11;border-radius:var(--r-block);overflow:hidden;background:var(--paper-2);box-shadow:var(--shadow-2);
}
.solve-media .frame img{width:100%;height:100%;object-fit:cover;}
.solve-body .h2{margin-bottom:18px;}
.solve-body > p{font-size:16.5px;color:var(--muted);margin-bottom:24px;max-width:32em;}
.check-list{display:flex;flex-direction:column;gap:14px;}
.check-list li{display:flex;gap:16px;align-items:flex-start;}
.check-list .idx{
  flex:0 0 24px;width:24px;height:24px;border-radius:6px;
  background:var(--accent);color:var(--paper);
  font-family:var(--mono);font-size:12px;font-weight:700;
  display:inline-flex;align-items:center;justify-content:center;margin-top:5px;
}
.check-list li span{font-size:15.5px;line-height:1.75;color:var(--ink);}
.check-list li span b{display:block;font-weight:600;margin-bottom:2px;}
.check-list li span i{font-style:normal;color:var(--muted);font-size:14.5px;}

/* ================= 成果 04（深色） ================= */
.result{position:relative;background:var(--ink);color:var(--paper);overflow:hidden;border-top:0;}
.result::before{
  content:"";position:absolute;inset:0;
  background:url(/assets/images/backpic/back-3.webp) center/cover no-repeat;
  opacity:.16;
}
.result::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(14,18,20,.72),rgba(14,18,20,.92));
}
.result .container{position:relative;z-index:2;}
.result .h2{color:var(--paper);max-width:26em;}
.result .result-sub{color:rgba(247,245,241,.72);font-size:16.5px;margin-top:16px;max-width:36em;}
.result-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:28px;margin-top:64px;
  border-top:1px solid rgba(247,245,241,.18);padding-top:44px;
}
.result-item .r-num{
  font-family:var(--mono);font-size:clamp(34px,4vw,52px);font-weight:700;line-height:1;
  color:var(--accent);letter-spacing:-0.02em;
}
.result-item .r-num small{font-size:18px;margin-left:4px;}
.result-item .r-txt{font-size:14.5px;line-height:1.7;color:rgba(247,245,241,.72);margin-top:12px;}
.result-link{margin-top:44px;}

/* ================= 资讯卡片（CMS 区域） ================= */
.news-list{display:grid;grid-template-columns:1fr;gap:20px;}
.news-card{
  display:grid;grid-template-columns:250px 1fr;gap:26px;
  padding:20px;
  background:rgba(255,255,255,.5);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-1);
  transition:transform .35s cubic-bezier(.22,.61,.36,1),box-shadow .35s,border-color .35s;
}
.news-card:hover{transform:translateX(4px) translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--accent);}
.news-thumb{aspect-ratio:16/10;border-radius:var(--r-img);overflow:hidden;background:var(--paper-2);}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s cubic-bezier(.22,.61,.36,1);}
.news-card:hover .news-thumb img{transform:scale(1.04);}
.news-body{display:flex;flex-direction:column;gap:10px;min-width:0;}
.badge{
  display:inline-flex;align-items:center;
  align-self:flex-start;
  padding:4px 12px;
  font-size:12px;font-weight:600;letter-spacing:.06em;
  color:var(--accent-2);
  border:1px solid var(--accent-2);
  background:rgba(46,110,99,.06);
  border-radius:var(--r-btn);
}
.news-title{
  font-size:19px;font-weight:600;line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-summary{
  font-size:14.5px;line-height:1.75;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:auto;padding-top:8px;border-top:1px solid var(--line);}
.news-date{font-family:var(--mono);font-size:12.5px;letter-spacing:.06em;color:var(--muted);}
.news-more{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;font-weight:600;color:var(--accent);}
.news-more svg{transition:transform .3s;}
.news-card:hover .news-more svg{transform:translateX(4px);}
.empty-state{
  border:1px dashed var(--line-strong);
  border-radius:var(--r-card);
  padding:56px 24px;
  text-align:center;
  color:var(--muted);
  font-size:14px;
}
.empty-state svg{display:block;margin:0 auto 14px;color:var(--muted);opacity:.7;}

/* ================= 证言 05 ================= */
.voice-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:start;}
.voice-card{
  background:rgba(255,255,255,.55);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-1);
  padding:34px 32px;
  transition:box-shadow .35s,transform .35s;
}
.voice-card:hover{box-shadow:var(--shadow-2);transform:translateY(-4px);}
.voice-grid > .voice-card:nth-child(2){margin-top:56px;}
.voice-quote{font-size:18px;line-height:1.8;color:var(--ink);margin-bottom:26px;}
.voice-quote::before{content:"“";color:var(--accent);font-size:30px;line-height:0;margin-right:4px;}
.voice-person{display:flex;align-items:center;gap:14px;border-top:1px solid var(--line);padding-top:20px;}
.voice-avatar{width:46px;height:46px;border-radius:50%;overflow:hidden;background:var(--paper-2);flex:0 0 46px;}
.voice-avatar img{width:100%;height:100%;object-fit:cover;}
.voice-name{font-size:15px;font-weight:600;}
.voice-role{font-size:13px;color:var(--muted);}

/* ================= FAQ ================= */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:first-child{border-top:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:24px;
  min-height:72px;padding:14px 0;text-align:left;
  font-size:18px;font-weight:600;color:var(--ink);
  transition:color .25s;
}
.faq-q:hover{color:var(--accent);}
.faq-icon{
  flex:0 0 28px;width:28px;height:28px;border-radius:50%;
  border:1px solid var(--line-strong);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:400;color:var(--ink);
  transition:transform .28s cubic-bezier(.22,.61,.36,1),background-color .28s,color .28s,border-color .28s;
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--accent);border-color:var(--accent);color:var(--paper);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;}
.faq-a p{padding:0 0 20px 24px;font-size:15.5px;line-height:1.85;color:var(--muted);max-width:46em;}

/* ================= 最终 CTA 06 ================= */
.cta{background:var(--ink);color:var(--paper);padding:104px 0;position:relative;overflow:hidden;}
.cta::before{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  border:1px solid rgba(247,245,241,.14);
}
.cta::after{
  content:"";position:absolute;right:-40px;top:-40px;width:260px;height:260px;border-radius:50%;
  border:1px solid rgba(228,87,46,.35);
}
.cta-grid{position:relative;z-index:2;display:grid;grid-template-columns:6fr 6fr;gap:64px;align-items:start;}
.cta .h2{color:var(--paper);margin-bottom:18px;}
.cta p.cta-sub{color:rgba(247,245,241,.72);font-size:16.5px;max-width:30em;}
.cta-notes{margin-top:34px;display:flex;flex-direction:column;gap:12px;}
.cta-notes li{font-size:14.5px;color:rgba(247,245,241,.66);display:flex;gap:12px;align-items:flex-start;}
.cta-notes li::before{content:"";flex:0 0 6px;width:6px;height:6px;border-radius:50%;background:var(--accent);margin-top:9px;}
.form-card{
  background:rgba(247,245,241,.06);
  border:1px solid rgba(247,245,241,.18);
  border-radius:var(--r-block);
  padding:32px;
}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13px;font-weight:600;letter-spacing:.04em;color:rgba(247,245,241,.86);margin-bottom:8px;}
.field input,.field textarea{
  width:100%;min-height:48px;padding:12px 16px;
  border-radius:var(--r-input);
  background:rgba(247,245,241,.94);
  border:1px solid transparent;
  color:var(--ink);
  font-size:15px;
  transition:border-color .25s,box-shadow .25s;
}
.field textarea{min-height:104px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:var(--muted);}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(228,87,46,.18);
}
.field.has-error input,.field.has-error textarea{border-color:var(--danger);}
.field .err{display:none;font-size:13px;color:#F0A79A;margin-top:6px;}
.field.has-error .err{display:block;}
.form-note{font-size:12.5px;color:rgba(247,245,241,.6);margin-top:14px;}
.form-ok{
  display:none;margin-top:16px;padding:12px 16px;border-radius:var(--r-input);
  background:rgba(46,110,99,.24);border:1px solid rgba(46,110,99,.5);
  color:#CFE7E0;font-size:14px;
}
.form-ok.is-show{display:block;}

/* ================= 页脚 ================= */
.footer{background:var(--ink);color:rgba(247,245,241,.72);padding:76px 0 28px;}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px;}
.footer h4{color:rgba(247,245,241,.95);font-size:14px;font-weight:700;letter-spacing:.06em;margin-bottom:18px;}
.footer-brand{font-size:19px;font-weight:800;color:rgba(247,245,241,.96);margin-bottom:14px;}
.footer-brand em{font-style:normal;color:var(--accent);}
.footer p.fdesc{font-size:14.5px;line-height:1.85;color:rgba(247,245,241,.6);max-width:26em;}
.footer-links{display:flex;flex-direction:column;gap:12px;}
.footer-links a{font-size:14.5px;color:rgba(247,245,241,.72);transition:color .25s,transform .25s;display:inline-block;}
.footer-links a:hover{color:var(--paper);transform:translateX(-2px);}
.footer-contact{font-size:14.5px;line-height:1.9;color:rgba(247,245,241,.72);}
.footer-contact b{color:rgba(247,245,241,.95);font-weight:600;}
.footer-bottom{
  margin-top:56px;padding-top:24px;
  border-top:1px solid rgba(247,245,241,.14);
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;
  font-size:13px;color:rgba(247,245,241,.55);
}
.footer-bottom span{font-family:var(--mono);letter-spacing:.02em;}

/* ================= 动效 ================= */
.reveal{opacity:1;transform:none;}
@media (prefers-reduced-motion: no-preference){
  .reveal{opacity:0;transform:translateY(12px);transition:opacity .5s cubic-bezier(.22,.61,.36,1),transform .5s cubic-bezier(.22,.61,.36,1);}
  .reveal.is-in{opacity:1;transform:none;}
}

/* ================= 断点 ================= */
@media (max-width:1279px){
  .container{padding:0 40px;}
  .hero-grid{gap:48px;}
}
@media (max-width:1023px){
  body{font-size:16.5px;}
  .container{padding:0 32px;}
  .section{padding:88px 0;}
  .hero{padding:56px 0 72px;}
  .hero-grid{grid-template-columns:1fr;gap:44px;}
  .hero-media .frame{aspect-ratio:16/10;}
  .float-card{left:16px;bottom:-24px;}
  .pain-grid{grid-template-columns:1fr;gap:36px;}
  .pain-side{position:static;}
  .solve-row{grid-template-columns:1fr;gap:34px;}
  .solve-row.is-reverse .solve-media{order:0;}
  .result-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .news-list{grid-template-columns:1fr 1fr;}
  .news-card{grid-template-columns:1fr;gap:16px;}
  .news-thumb{aspect-ratio:16/10;}
  .voice-grid{grid-template-columns:1fr;}
  .voice-grid > .voice-card:nth-child(2){margin-top:0;}
  .cta-grid{grid-template-columns:1fr;gap:40px;}
  .footer-top{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:767px){
  body{font-size:16px;padding-bottom:84px;}
  .container{padding:0 20px;}
  .section{padding:64px 0;}
  .section-head{margin-bottom:36px;}
  .dock-wrap{
    position:fixed;top:auto;bottom:0;left:0;right:0;
    padding:0 12px calc(12px + env(safe-area-inset-bottom,0px));
    z-index:88;
  }
  .dock{height:58px;padding:0 10px 0 18px;border-radius:20px;gap:8px;}
  .dock.is-scrolled{height:58px;}
  .dock-nav,.dock-search{display:none;}
  .dock-burger{display:inline-flex;}
  .dock-right{margin-left:auto;}
  .hero-grid{gap:36px;}
  .hero-actions .btn{width:100%;}
  .hero-metrics{grid-template-columns:1fr;gap:18px;padding-top:22px;}
  .hero-media .frame{aspect-ratio:4/3;}
  .float-card{position:static;margin-top:16px;min-width:0;box-shadow:var(--shadow-2);}
  .trust-inner{gap:12px 22px;}
  .trust-inner span{font-size:11.5px;letter-spacing:.16em;}
  .pain-item{grid-template-columns:1fr;gap:8px;padding:24px 0;}
  .news-list{grid-template-columns:1fr;}
  .news-card:hover{transform:translateY(-3px);}
  .result-grid{grid-template-columns:1fr 1fr;gap:26px;}
  .faq-q{font-size:16.5px;min-height:64px;}
  .faq-a p{padding-left:0;}
  .form-card{padding:24px 20px;}
  .footer{padding:56px 0 96px;}
  .footer-top{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
}
@media (max-width:479px){
  body{font-size:15px;}
  .h1{font-size:34px;line-height:1.14;}
  .h2{font-size:24px;}
  .result-grid{grid-template-columns:1fr;}
  .sec-num{font-size:34px;}
  .btn{min-height:48px;width:100%;}
  .btn-sm{width:auto;}
}

/* roulang page: article */
:root{
  --ink:#0E1214;
  --ink-2:#1B2124;
  --paper:#F7F5F1;
  --paper-2:#EFEBE4;
  --accent:#E4572E;
  --accent-hover:#C9481F;
  --accent-2:#2E6E63;
  --muted:#6E7679;
  --line:rgba(14,18,20,.10);
  --line-soft:rgba(247,245,241,.16);
  --shadow-1:0 1px 2px rgba(14,18,20,.05);
  --shadow-2:0 8px 24px rgba(14,18,20,.07);
  --shadow-3:0 20px 48px rgba(14,18,20,.12);
  --r-card:20px;
  --r-btn:12px;
  --r-img:14px;
  --r-badge:999px;
  --r-block:24px;
  --font:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:17px;
  line-height:1.9;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding-left:22px;}
:focus-visible{outline:3px solid rgba(228,87,46,.45);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 48px;}
.eyebrow{
  font-size:12.5px;font-weight:600;letter-spacing:.16em;
  color:var(--muted);text-transform:uppercase;
}
.eyebrow .num{color:var(--accent);margin-right:10px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  transition:transform .25s cubic-bezier(.22,.61,.36,1),background .25s,box-shadow .25s,color .25s,border-color .25s;
  white-space:nowrap;
}
.btn-primary{background:var(--accent);color:var(--paper);box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--accent-hover);transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(1px);box-shadow:none;}
.btn-ghost{border:1px solid var(--ink);color:var(--ink);background:transparent;}
.btn-ghost:hover{background:var(--ink);color:var(--paper);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-light{background:var(--paper);color:var(--ink);}
.btn-light:hover{background:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled]{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;
  color:var(--accent-2);border-bottom:1px solid rgba(46,110,99,.35);
  padding-bottom:2px;transition:.25s;
}
.link-arrow svg{transition:transform .25s;}
.link-arrow:hover{color:var(--accent);border-color:var(--accent);}
.link-arrow:hover svg{transform:translateX(3px);}

.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-badge);border:1px solid rgba(46,110,99,.4);
  background:rgba(46,110,99,.07);color:var(--accent-2);
  font-size:12.5px;font-weight:600;letter-spacing:.06em;
}
.badge-dark{border-color:var(--line-soft);background:rgba(247,245,241,.08);color:rgba(247,245,241,.9);}

/* ---------- Dock 导航 ---------- */
.site-header{
  position:sticky;top:24px;z-index:80;
  padding:0 24px;pointer-events:none;
}
.dock{
  pointer-events:auto;
  width:100%;max-width:1160px;margin:0 auto;height:64px;
  display:flex;align-items:center;gap:18px;
  padding:0 12px 0 24px;
  border-radius:999px;
  background:rgba(247,245,241,.82);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--line);
  box-shadow:var(--shadow-2);
  transition:height .3s,background .3s,box-shadow .3s;
}
.site-header.is-compact .dock{
  height:56px;background:rgba(247,245,241,.94);box-shadow:var(--shadow-3);
}
.dock-logo{
  font-size:19px;font-weight:800;letter-spacing:-.02em;color:var(--ink);
  display:flex;align-items:baseline;gap:2px;flex:0 0 auto;
}
.dock-logo em{font-style:normal;color:var(--accent);font-size:13px;font-weight:700;letter-spacing:.06em;}
.dock-nav{display:flex;align-items:center;gap:4px;margin:0 auto;}
.dock-nav a{
  position:relative;padding:8px 14px;font-size:14.5px;color:var(--ink);
  border-radius:999px;transition:color .25s;
}
.dock-nav a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .3s cubic-bezier(.22,.61,.36,1);
}
.dock-nav a:hover{color:var(--accent);}
.dock-nav a:hover::after,
.dock-nav a.is-active::after{transform:scaleX(1);}
.dock-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto;}
.icon-btn{
  width:40px;height:40px;border-radius:999px;display:inline-flex;
  align-items:center;justify-content:center;color:var(--ink);
  border:1px solid transparent;transition:.25s;
}
.icon-btn:hover{background:var(--paper-2);border-color:var(--line);color:var(--accent);}
.hamburger{display:none;width:40px;height:40px;border-radius:999px;align-items:center;justify-content:center;border:1px solid var(--line);}
.hamburger span{display:block;width:16px;height:1.5px;background:var(--ink);position:relative;}
.hamburger span::before,.hamburger span::after{
  content:"";position:absolute;left:0;width:16px;height:1.5px;background:var(--ink);
}
.hamburger span::before{top:-5px;}
.hamburger span::after{top:5px;}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,18,20,.5);
  opacity:0;visibility:hidden;transition:.3s;z-index:120;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(340px,86vw);z-index:130;
  background:var(--paper);border-left:1px solid var(--line);
  transform:translateX(100%);transition:transform .34s cubic-bezier(.22,.61,.36,1);
  padding:24px 22px;display:flex;flex-direction:column;gap:22px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-brand{font-size:18px;font-weight:800;}
.drawer-brand em{font-style:normal;color:var(--accent);font-size:13px;margin-left:2px;}
.drawer-close{width:36px;height:36px;border-radius:999px;border:1px solid var(--line);font-size:18px;line-height:1;color:var(--ink);}
.drawer-search{display:flex;gap:8px;}
.drawer-search input{
  flex:1;height:46px;border-radius:var(--r-btn);border:1px solid var(--line);
  background:var(--paper);padding:0 14px;font-size:15px;
}
.drawer-search input::placeholder{color:var(--muted);}
.drawer-search input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(228,87,46,.18);}
.drawer-search button{height:46px;padding:0 16px;border-radius:var(--r-btn);background:var(--ink);color:var(--paper);font-size:14px;font-weight:600;}
.drawer-nav{display:flex;flex-direction:column;gap:2px;}
.drawer-nav a{
  padding:14px 4px;font-size:16px;font-weight:600;border-bottom:1px solid var(--line);
  transition:.25s;
}
.drawer-nav a:hover{color:var(--accent);padding-left:8px;}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;margin-top:34px;overflow:hidden;
  background:var(--ink);color:var(--paper);
  border-radius:var(--r-block);
  padding:78px 0 66px;
}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(180deg,rgba(14,18,20,.86),rgba(14,18,20,.94)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.9;
}
.article-hero::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(var(--line-soft) 1px,transparent 1px),linear-gradient(90deg,var(--line-soft) 1px,transparent 1px);
  background-size:120px 120px;opacity:.22;
}
.article-hero .container{position:relative;z-index:2;}
.article-hero .eyebrow{color:rgba(247,245,241,.6);}
.article-hero h1{
  font-size:clamp(30px,4.2vw,54px);font-weight:800;line-height:1.16;
  letter-spacing:-.02em;margin:18px 0 0;max-width:920px;color:var(--paper);
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;
  margin-top:26px;font-size:13px;letter-spacing:.08em;color:rgba(247,245,241,.62);
}
.article-meta .sep{opacity:.5;}

/* ---------- 面包屑 ---------- */
.crumb-bar{border-bottom:1px solid var(--line);}
.crumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  padding:18px 0;font-size:13px;color:var(--muted);letter-spacing:.04em;
}
.crumb a{color:var(--ink);transition:.25s;}
.crumb a:hover{color:var(--accent);}
.crumb .current{
  color:var(--muted);max-width:46ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}

/* ---------- 正文 ---------- */
.article-main{padding:64px 0 0;}
.article-body{max-width:760px;margin:0 auto;font-size:17.5px;line-height:1.9;color:#232A2D;}
.article-body p{margin:0 0 1.1em;}
.article-body h1,.article-body h2,.article-body h3,.article-body h4{color:var(--ink);letter-spacing:-.01em;}
.article-body h1{font-size:26px;font-weight:700;margin:48px 0 18px;line-height:1.35;}
.article-body h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;margin:56px 0 20px;line-height:1.3;}
.article-body h3{font-size:20px;font-weight:600;margin:36px 0 14px;line-height:1.4;}
.article-body h4{font-size:17px;font-weight:600;margin:28px 0 12px;}
.article-body img{border-radius:var(--r-img);margin:28px 0;width:100%;height:auto;}
.article-body figure{margin:28px 0;}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px;}
.article-body blockquote{
  margin:28px 0;padding:18px 22px;border-left:3px solid var(--accent);
  background:var(--paper-2);border-radius:0 var(--r-img) var(--r-img) 0;
  color:#2C3336;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:24px;}
.article-body li{margin:0 0 .55em;line-height:1.8;}
.article-body a{color:var(--accent-2);border-bottom:1px solid rgba(46,110,99,.35);transition:.25s;}
.article-body a:hover{color:var(--accent);border-color:var(--accent);}
.article-body table{
  width:100%;border-collapse:collapse;margin:28px 0;font-size:15.5px;
  border:1px solid var(--line);border-radius:var(--r-img);overflow:hidden;
}
.article-body th{background:var(--paper-2);font-weight:600;text-align:left;}
.article-body th,.article-body td{border:1px solid var(--line);padding:12px 14px;line-height:1.7;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:44px 0;}
.article-body code{
  background:var(--paper-2);padding:2px 6px;border-radius:6px;font-size:.92em;
}
.article-body>*:first-child{margin-top:0;}

.article-empty{
  border:1px dashed var(--line);border-radius:var(--r-card);
  padding:64px 28px;text-align:center;background:var(--paper);
}
.article-empty svg{width:34px;height:34px;color:var(--muted);margin:0 auto 16px;}
.article-empty h2{font-size:22px;font-weight:700;margin-bottom:10px;}
.article-empty p{font-size:15px;color:var(--muted);margin-bottom:22px;}

/* ---------- 标签与分享 ---------- */
.article-foot{
  max-width:760px;margin:56px auto 0;padding-top:26px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:18px;align-items:center;justify-content:space-between;
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;
  border-radius:var(--r-badge);border:1px solid var(--line);
  background:var(--paper-2);font-size:12.5px;color:#3A4245;letter-spacing:.04em;
}
.share-row{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);}
.share-row button{
  width:36px;height:36px;border-radius:999px;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;color:var(--ink);
  transition:.25s;background:var(--paper);
}
.share-row button:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px);}

/* ---------- 相关推荐 ---------- */
.related{padding:88px 0 0;}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  padding-bottom:22px;border-bottom:1px solid var(--line);margin-bottom:36px;
}
.section-head h2{font-size:clamp(22px,2.4vw,32px);font-weight:700;letter-spacing:-.01em;}
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.post-card{
  display:flex;flex-direction:column;
  border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--paper);box-shadow:var(--shadow-1);
  overflow:hidden;transition:transform .3s cubic-bezier(.22,.61,.36,1),box-shadow .3s,border-color .3s;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(228,87,46,.5);}
.post-thumb{display:block;aspect-ratio:16/10;overflow:hidden;background:var(--paper-2);}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s cubic-bezier(.22,.61,.36,1);}
.post-card:hover .post-thumb img{transform:scale(1.04);}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.post-title{font-size:18px;font-weight:600;line-height:1.45;letter-spacing:-.005em;}
.post-title a{transition:.25s;}
.post-card:hover .post-title a{color:var(--accent);}
.post-excerpt{
  font-size:15px;line-height:1.75;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{
  margin-top:auto;display:flex;align-items:center;gap:10px;
  font-size:12.5px;color:var(--muted);letter-spacing:.06em;padding-top:6px;
}
.back-row{margin-top:40px;text-align:center;}

/* ---------- 底部 CTA ---------- */
.cta-bar{
  margin-top:96px;background:var(--ink);color:var(--paper);
  border-radius:var(--r-block);padding:56px;position:relative;overflow:hidden;
}
.cta-bar::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(90deg,rgba(228,87,46,.18),transparent 60%);
}
.cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:28px;align-items:center;justify-content:space-between;}
.cta-inner h2{font-size:clamp(22px,2.6vw,34px);font-weight:700;letter-spacing:-.01em;max-width:22ch;}
.cta-inner p{margin-top:12px;font-size:15.5px;color:rgba(247,245,241,.66);max-width:44ch;line-height:1.8;}

/* ---------- 页脚 ---------- */
.footer{background:var(--ink);color:rgba(247,245,241,.72);padding:84px 0 0;margin-top:96px;}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{color:rgba(247,245,241,.95);font-size:22px;font-weight:800;letter-spacing:-.02em;}
.footer-brand em{font-style:normal;color:var(--accent);font-size:13px;font-weight:700;letter-spacing:.06em;margin-left:4px;}
.fdesc{margin-top:16px;font-size:14.5px;line-height:1.85;max-width:34ch;color:rgba(247,245,241,.62);}
.footer h4{
  color:rgba(247,245,241,.95);font-size:12.5px;font-weight:600;
  letter-spacing:.16em;margin-bottom:18px;
}
.footer-links{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:11px;}
.footer-links a{
  display:inline-block;font-size:14.5px;color:rgba(247,245,241,.72);
  transition:color .25s,transform .25s;
}
.footer-links a:hover{color:var(--paper);transform:translateX(2px);}
.footer-contact{font-size:14.5px;line-height:1.9;color:rgba(247,245,241,.62);}
.footer-contact b{color:rgba(247,245,241,.9);font-weight:600;}
.footer-bottom{
  border-top:1px solid var(--line-soft);margin-top:56px;padding:22px 0 30px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:rgba(247,245,241,.5);letter-spacing:.04em;
}

/* ---------- 动效 ---------- */
@media (prefers-reduced-motion: no-preference){
  .reveal{opacity:0;transform:translateY(12px);transition:opacity .5s cubic-bezier(.22,.61,.36,1),transform .5s cubic-bezier(.22,.61,.36,1);}
  .reveal.is-in{opacity:1;transform:none;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .post-grid{grid-template-columns:repeat(2,1fr);}
  .post-grid .post-card:nth-child(2n){transform:translateY(0);}
}
@media (max-width:1023px){
  .container{padding:0 32px;}
  .dock-nav{display:none;}
  .hamburger{display:inline-flex;}
  .footer-top{grid-template-columns:repeat(2,1fr);gap:32px;}
  .article-hero{padding:58px 0 50px;border-radius:20px;}
  .cta-bar{padding:42px;}
}
@media (max-width:859px){
  .dock-logo em{display:none;}
}
@media (max-width:767px){
  body{font-size:16px;padding-bottom:86px;}
  .container{padding:0 20px;}
  .site-header{
    position:fixed;top:auto;bottom:0;left:0;right:0;padding:0 12px 12px;
  }
  .dock{height:58px;border-radius:20px;padding:0 10px 0 18px;gap:10px;}
  .site-header.is-compact .dock{height:58px;}
  .dock-actions .btn-primary{display:none;}
  .article-hero{padding:44px 0 40px;border-radius:18px;margin-top:22px;}
  .article-hero h1{font-size:clamp(26px,7vw,34px);}
  .article-meta{font-size:12px;gap:8px 10px;}
  .article-main{padding:44px 0 0;}
  .article-body{font-size:17px;}
  .post-grid{grid-template-columns:1fr;}
  .post-thumb{aspect-ratio:16/10;}
  .article-foot{flex-direction:column;align-items:flex-start;}
  .cta-bar{padding:32px 24px;margin-top:64px;}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:20px;}
  .cta-inner .btn{width:100%;}
  .footer{padding-top:60px;margin-top:64px;}
  .footer-top{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;}
  .related{padding-top:64px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:8px;}
}
@media (max-width:479px){
  body{font-size:15px;}
  .article-hero h1{font-size:24px;line-height:1.3;}
  .dock-logo{font-size:17px;}
  .btn{height:46px;font-size:14.5px;}
  .post-body{padding:18px;}
}

/* roulang page: category1 */
:root{
  --ink:#0E1214;
  --ink-2:#1B2124;
  --paper:#F7F5F1;
  --paper-2:#EFEBE4;
  --accent:#E4572E;
  --accent-2:#2E6E63;
  --muted:#6E7679;
  --line:rgba(14,18,20,0.10);
  --line-strong:rgba(14,18,20,0.18);
  --paper-72:rgba(247,245,241,0.72);
  --paper-95:rgba(247,245,241,0.95);
  --paper-12:rgba(247,245,241,0.12);
  --overlay:rgba(14,18,20,0.5);
  --accent-ring:rgba(228,87,46,0.18);
  --danger:#C0392B;
  --hover-accent:#C9481F;
  --shadow-1:0 1px 2px rgba(14,18,20,.05);
  --shadow-2:0 8px 24px rgba(14,18,20,.07);
  --shadow-3:0 20px 48px rgba(14,18,20,.12);
  --r-card:18px;
  --r-btn:999px;
  --r-input:12px;
  --r-img:14px;
  --r-block:24px;
  --r-tag:999px;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-num:"SF Mono",ui-monospace,"Menlo","Consolas","PingFang SC",monospace;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:17px;
  line-height:1.9;
  color:var(--ink);
  background:var(--paper);
  overflow-x:hidden;
  padding-bottom:0;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{font:inherit;color:inherit;}
button{background:none;border:none;cursor:pointer;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 48px;
}

/* ---------- 浮动 Dock 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  padding:24px 0 0;
  pointer-events:none;
}
.dock-wrap{
  width:min(1160px,calc(100% - 48px));
  margin:0 auto;
  pointer-events:auto;
}
.dock{
  display:flex;
  align-items:center;
  gap:20px;
  height:64px;
  padding:0 12px 0 26px;
  border-radius:var(--r-btn);
  background:rgba(247,245,241,.82);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--line);
  box-shadow:var(--shadow-2);
  transition:height .3s var(--ease),background-color .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header.is-scrolled .dock{
  height:56px;
  background:rgba(247,245,241,.94);
  box-shadow:var(--shadow-3);
}
.logo{
  font-size:18px;
  font-weight:800;
  letter-spacing:-.01em;
  white-space:nowrap;
  flex-shrink:0;
}
.logo em{
  font-style:normal;
  color:var(--accent);
  font-weight:800;
}
.dock-nav{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:auto;
}
.dock-nav a{
  position:relative;
  display:inline-block;
  padding:9px 14px;
  font-size:15px;
  font-weight:500;
  color:var(--ink);
  border-radius:var(--r-btn);
  transition:color .25s var(--ease),background-color .25s var(--ease);
  white-space:nowrap;
}
.dock-nav a::after{
  content:"";
  position:absolute;
  left:14px;
  right:14px;
  bottom:4px;
  height:2px;
  background:var(--accent);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .3s var(--ease);
}
.dock-nav a:hover{background:var(--paper-2);}
.dock-nav a:hover::after,.dock-nav a.is-active::after{transform:scaleX(1);}
.dock-nav a.is-active{font-weight:700;}
.dock-actions{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.icon-btn{
  width:40px;
  height:40px;
  border-radius:50%;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border:1px solid var(--line);
  color:var(--ink);
  transition:border-color .25s var(--ease),color .25s var(--ease),background-color .25s var(--ease);
}
.icon-btn:hover{border-color:var(--accent);color:var(--accent);background:var(--paper-2);}
.menu-btn{display:none;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:0 26px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  letter-spacing:.02em;
  border:1px solid transparent;
  transition:background-color .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease),transform .25s var(--ease),box-shadow .25s var(--ease);
}
.btn-primary{background:var(--accent);color:var(--paper);}
.btn-primary:hover{background:var(--hover-accent);transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(1px);box-shadow:var(--shadow-1);}
.btn-ghost{border-color:var(--ink);background:transparent;color:var(--ink);}
.btn-ghost:hover{background:var(--ink);color:var(--paper);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{min-height:40px;padding:0 20px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}
.btn-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:600;
  color:var(--ink);
  border-bottom:1px solid var(--line-strong);
  padding-bottom:2px;
  transition:color .25s var(--ease),border-color .25s var(--ease);
}
.btn-link:hover{color:var(--accent);border-color:var(--accent);}
.btn-link svg{transition:transform .25s var(--ease);}
.btn-link:hover svg{transform:translateX(3px);}

/* ---------- 通用版式 ---------- */
main{display:block;}
.section{padding:104px 0;}
.section + .section{border-top:1px solid var(--line);}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.16em;
  color:var(--muted);
  text-transform:uppercase;
}
.eyebrow .num{
  font-family:var(--font-num);
  color:var(--accent);
  font-size:13px;
  letter-spacing:.08em;
}
.eyebrow .tick{
  width:24px;
  height:1px;
  background:var(--line-strong);
  display:inline-block;
}
h1{
  font-size:clamp(38px,5.6vw,76px);
  font-weight:800;
  line-height:1.06;
  letter-spacing:-.02em;
}
h2{
  font-size:clamp(26px,3vw,40px);
  font-weight:700;
  line-height:1.18;
  letter-spacing:-.01em;
  margin-top:16px;
}
h3{
  font-size:20px;
  font-weight:600;
  line-height:1.4;
}
.lede{
  font-size:18px;
  line-height:1.8;
  color:var(--muted);
  max-width:780px;
}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.06em;
  color:var(--accent-2);
  border:1px solid var(--accent-2);
  border-radius:var(--r-tag);
  background:rgba(46,110,99,.06);
}

/* ---------- Hero ---------- */
.cat-hero{padding:72px 0 0;}
.cat-hero .inner{max-width:900px;}
.cat-hero h1{margin-top:22px;}
.cat-hero .lede{margin-top:22px;}
.hero-media{
  margin-top:56px;
  position:relative;
  border-radius:var(--r-block);
  overflow:hidden;
  background:var(--paper-2);
  aspect-ratio:16/6;
}
.hero-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .6s var(--ease);
}
.hero-media:hover img{transform:scale(1.03);}
.hero-media .float-card{
  position:absolute;
  right:28px;
  bottom:28px;
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:18px 22px;
  box-shadow:var(--shadow-2);
  max-width:260px;
}
.hero-media .float-card b{
  display:block;
  font-family:var(--font-num);
  font-size:28px;
  color:var(--accent);
  line-height:1.2;
}
.hero-media .float-card span{
  display:block;
  font-size:14px;
  color:var(--muted);
  margin-top:6px;
}

/* ---------- 双列文本块 ---------- */
.duo{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
}
.duo .col-block{
  padding-top:24px;
  border-top:2px solid var(--ink);
}
.duo .col-block p{
  margin-top:18px;
  font-size:17px;
  line-height:1.9;
  color:var(--ink);
  max-width:42ch;
}
.duo .col-block p.sub{color:var(--muted);font-size:16px;}

/* ---------- 信任指标条 ---------- */
.metrics{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:32px;
  padding:40px 0;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.metric b{
  display:block;
  font-family:var(--font-num);
  font-size:clamp(30px,3.4vw,42px);
  font-weight:700;
  color:var(--accent);
  line-height:1.1;
}
.metric span{
  display:block;
  margin-top:8px;
  font-size:14px;
  color:var(--muted);
  letter-spacing:.02em;
}

/* ---------- 要点卡片列表 ---------- */
.card-list{
  display:flex;
  flex-direction:column;
  gap:20px;
  margin-top:48px;
}
.card{
  display:flex;
  gap:24px;
  align-items:stretch;
  padding:20px;
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-1);
  transition:box-shadow .3s var(--ease),transform .3s var(--ease),border-color .3s var(--ease);
}
.card:hover{
  box-shadow:var(--shadow-2);
  transform:translateX(4px);
  border-color:var(--accent);
}
.card-thumb{
  flex:0 0 240px;
  border-radius:var(--r-img);
  overflow:hidden;
  background:var(--paper-2);
  aspect-ratio:16/10;
  position:relative;
}
.card-thumb::before{
  content:"";
  position:absolute;
  inset:0;
  background:var(--paper-2);
}
.card-thumb img{
  position:relative;
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .4s var(--ease);
}
.card:hover .card-thumb img{transform:scale(1.04);}
.card-body{
  display:flex;
  flex-direction:column;
  gap:10px;
  padding:6px 4px 6px 0;
  min-width:0;
}
.card-body h3{margin-top:2px;}
.card-body p{
  font-size:15px;
  line-height:1.75;
  color:var(--muted);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.card-foot{
  margin-top:auto;
  display:flex;
  align-items:center;
  gap:16px;
  font-size:13px;
  color:var(--muted);
  letter-spacing:.04em;
}
.card-foot .arrow{
  margin-left:auto;
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-weight:600;
  color:var(--ink);
}
.card-foot .arrow svg{transition:transform .25s var(--ease);}
.card:hover .card-foot .arrow svg{transform:translateX(4px);}

/* ---------- 步骤清单 ---------- */
.step-list{
  display:flex;
  flex-direction:column;
  gap:26px;
  margin-top:44px;
}
.step{
  display:grid;
  grid-template-columns:34px 1fr;
  gap:20px;
  align-items:start;
  padding-bottom:26px;
  border-bottom:1px solid var(--line);
}
.step:last-child{border-bottom:none;padding-bottom:0;}
.step .sq{
  width:34px;
  height:34px;
  border-radius:6px;
  background:var(--accent);
  color:var(--paper);
  font-family:var(--font-num);
  font-size:14px;
  font-weight:600;
  display:flex;
  align-items:center;
  justify-content:center;
}
.step h3{margin-bottom:8px;}
.step p{font-size:16px;color:var(--muted);line-height:1.85;max-width:64ch;}

/* ---------- FAQ ---------- */
.faq{max-width:860px;margin:48px auto 0;}
.faq-item{border-top:1px solid var(--line);}
.faq-item:last-child{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;
  min-height:72px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  text-align:left;
  font-size:18px;
  font-weight:600;
  padding:14px 0;
  transition:color .25s var(--ease);
}
.faq-q:hover{color:var(--accent);}
.faq-q .plus{
  flex:0 0 22px;
  width:22px;
  height:22px;
  position:relative;
  transition:transform .28s var(--ease);
}
.faq-q .plus::before,.faq-q .plus::after{
  content:"";
  position:absolute;
  background:var(--accent);
  border-radius:1px;
}
.faq-q .plus::before{left:0;top:10px;width:22px;height:2px;}
.faq-q .plus::after{left:10px;top:0;width:2px;height:22px;}
.faq-item.is-open .faq-q .plus{transform:rotate(45deg);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .28s var(--ease);
}
.faq-a p{
  padding:0 0 20px 24px;
  font-size:16px;
  line-height:1.85;
  color:var(--muted);
  max-width:66ch;
}

/* ---------- CTA 区块 ---------- */
.cta{
  background:var(--ink);
  color:var(--paper);
  border-radius:var(--r-block);
  padding:64px 56px;
  display:grid;
  grid-template-columns:1.1fr 1fr;
  gap:56px;
  border:1px solid var(--paper-12);
}
.cta h2{color:var(--paper-95);margin-top:16px;}
.cta p{color:var(--paper-72);margin-top:16px;max-width:40ch;}
.cta .eyebrow{color:var(--paper-72);}
.cta-form{display:flex;flex-direction:column;gap:16px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field label{font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--paper-95);}
.field input,.field textarea{
  width:100%;
  min-height:48px;
  padding:12px 16px;
  border-radius:var(--r-input);
  background:var(--paper);
  border:1px solid var(--line);
  font-size:15px;
  color:var(--ink);
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.field textarea{min-height:96px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:var(--muted);}
.field input:focus,.field textarea:focus{
  outline:none;
  border-color:var(--accent);
  box-shadow:0 0 0 3px var(--accent-ring);
}
.field.has-error input,.field.has-error textarea{border-color:var(--danger);}
.field .err{font-size:13px;color:var(--danger);display:none;}
.field.has-error .err{display:block;}

/* ---------- 页脚 ---------- */
.footer{
  background:var(--ink);
  color:var(--paper-72);
  margin-top:104px;
  padding:72px 0 32px;
}
.footer-top{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:40px;
}
.footer-brand{
  font-size:20px;
  font-weight:800;
  color:var(--paper-95);
  letter-spacing:-.01em;
}
.footer-brand em{font-style:normal;color:var(--accent);}
.fdesc{
  margin-top:16px;
  font-size:15px;
  line-height:1.85;
  max-width:34ch;
}
.footer h4{
  font-size:13px;
  font-weight:600;
  letter-spacing:.16em;
  color:var(--paper-95);
  margin-bottom:18px;
}
.footer-links{display:flex;flex-direction:column;gap:12px;}
.footer-links a{
  font-size:15px;
  display:inline-block;
  transition:color .25s var(--ease),transform .25s var(--ease);
}
.footer-links a:hover{color:var(--paper);transform:translateX(2px);}
.footer-contact{font-size:15px;line-height:1.9;}
.footer-contact b{color:var(--paper-95);font-weight:600;}
.footer-bottom{
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding-top:24px;
  border-top:1px solid var(--paper-12);
  font-size:13px;
  letter-spacing:.04em;
}

/* ---------- 移动抽屉 ---------- */
.drawer{
  position:fixed;
  inset:0 0 0 auto;
  width:min(340px,86vw);
  background:var(--paper);
  z-index:120;
  transform:translateX(102%);
  transition:transform .34s var(--ease);
  padding:28px 24px calc(28px + env(safe-area-inset-bottom));
  display:flex;
  flex-direction:column;
  gap:18px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer nav{display:flex;flex-direction:column;gap:4px;margin-top:8px;}
.drawer nav a{
  padding:14px 10px;
  border-radius:var(--r-input);
  font-size:16px;
  border-bottom:1px solid var(--line);
}
.drawer nav a.is-active{color:var(--accent);font-weight:700;}
.drawer .search-input{
  min-height:48px;
  border-radius:var(--r-input);
  border:1px solid var(--line);
  background:var(--paper-2);
  padding:0 16px;
  font-size:15px;
}
.overlay{
  position:fixed;
  inset:0;
  background:var(--overlay);
  opacity:0;
  pointer-events:none;
  transition:opacity .3s var(--ease);
  z-index:110;
}
.overlay.is-open{opacity:1;pointer-events:auto;}

/* ---------- 动效 ---------- */
@media (prefers-reduced-motion: no-preference){
  .fade-up{
    opacity:0;
    transform:translateY(12px);
    transition:opacity .5s var(--ease),transform .5s var(--ease);
  }
  .fade-up.is-in{opacity:1;transform:none;}
}

/* ---------- 断点 ---------- */
@media (max-width:1279px){
  .container{padding:0 40px;}
}
@media (max-width:1023px){
  .container{padding:0 32px;}
  .dock-nav{display:none;}
  .menu-btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    width:40px;
    height:40px;
    border-radius:50%;
    border:1px solid var(--line);
  }
  .duo{grid-template-columns:1fr;gap:36px;}
  .cta{grid-template-columns:1fr;padding:48px 36px;gap:36px;}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px;}
  .card{flex-direction:row;}
  .card-thumb{flex:0 0 200px;}
  .hero-media{aspect-ratio:16/8;}
}
@media (max-width:767px){
  body{font-size:16px;padding-bottom:78px;}
  .container{padding:0 20px;}
  .section{padding:72px 0;}
  .site-header{
    position:fixed;
    top:auto;
    bottom:0;
    left:0;
    right:0;
    padding:0 0 calc(12px + env(safe-area-inset-bottom));
  }
  .dock-wrap{width:calc(100% - 24px);}
  .dock{
    height:58px;
    border-radius:20px;
    padding:0 10px 0 18px;
    gap:10px;
  }
  .site-header.is-scrolled .dock{height:58px;}
  .logo{font-size:16px;}
  .dock-actions .btn-sm{display:none;}
  .hero-media{aspect-ratio:16/10;margin-top:36px;}
  .hero-media .float-card{right:14px;bottom:14px;padding:14px 16px;max-width:200px;}
  .hero-media .float-card b{font-size:22px;}
  .cat-hero{padding-top:44px;}
  .metrics{grid-template-columns:1fr;gap:24px;}
  .card{flex-direction:column;}
  .card-thumb{flex:none;width:100%;}
  .card:hover{transform:none;}
  .faq-q{font-size:16px;min-height:64px;}
  .footer{padding:56px 0 28px;margin-top:72px;}
  .footer-top{grid-template-columns:1fr;gap:28px;}
  .cta{padding:36px 22px;border-radius:20px;}
  .btn{min-height:44px;}
}
@media (max-width:479px){
  body{font-size:15px;}
  h1{font-size:32px;}
  h2{font-size:24px;}
  .lede{font-size:16px;}
  .btn{width:100%;}
  .btn-link{width:auto;}
  .dock-actions{gap:8px;}
}

/* roulang page: category2 */
:root{
    --ink:#0E1214;
    --ink-2:#1B2124;
    --paper:#F7F5F1;
    --paper-2:#EFEBE4;
    --accent:#E4572E;
    --accent-hover:#C9481F;
    --accent-2:#2E6E63;
    --muted:#6E7679;
    --line:rgba(14,18,20,0.10);
    --danger:#C0392B;
    --shadow-1:0 1px 2px rgba(14,18,20,.05);
    --shadow-2:0 8px 24px rgba(14,18,20,.07);
    --shadow-3:0 20px 48px rgba(14,18,20,.12);
    --r-card:20px;
    --r-btn:12px;
    --r-img:14px;
    --r-badge:999px;
    --r-block:24px;
    --container:1200px;
    --font:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
    --mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
  }

  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;
    background:var(--paper);
    color:var(--ink);
    font-family:var(--font);
    font-size:17px;
    line-height:1.9;
    font-weight:400;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
    overflow-x:hidden;
  }
  img{display:block;max-width:100%;height:auto}
  a{color:inherit;text-decoration:none}
  button,input,textarea,select{font:inherit;color:inherit}
  button{cursor:pointer;background:none;border:0;padding:0}
  ul,ol{margin:0;padding:0}
  h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.18}
  p{margin:0}
  :focus-visible{outline:3px solid rgba(228,87,46,.34);outline-offset:2px;border-radius:6px}

  .container{width:100%;max-width:var(--container);margin:0 auto;padding:0 48px}

  /* ---------- Dock 导航 ---------- */
  .dock{
    position:sticky;
    top:24px;
    z-index:90;
    width:min(1160px,calc(100% - 48px));
    height:64px;
    margin:24px auto 0;
    border-radius:var(--r-badge);
    background:rgba(247,245,241,.82);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border:1px solid var(--line);
    box-shadow:var(--shadow-2);
    transition:height .3s ease,background .3s ease,box-shadow .3s ease;
  }
  .dock.is-scrolled{height:56px;background:rgba(247,245,241,.94);box-shadow:var(--shadow-3)}
  .dock-inner{height:100%;display:flex;align-items:center;gap:20px;padding:0 10px 0 26px}
  .dock-logo{font-size:17px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
  .dock-logo em{font-style:normal;font-size:12px;font-weight:600;letter-spacing:.14em;color:var(--accent);margin-left:6px}
  .dock-nav{display:flex;align-items:center;gap:2px;margin:0 auto}
  .dock-nav a{
    position:relative;
    padding:8px 14px;
    font-size:14.5px;
    font-weight:500;
    color:var(--ink-2);
    white-space:nowrap;
    transition:color .25s ease;
  }
  .dock-nav a::after{
    content:"";
    position:absolute;
    left:14px;right:14px;bottom:0;
    height:2px;
    background:var(--accent);
    transform:scaleX(0);
    transform-origin:left center;
    transition:transform .32s cubic-bezier(.22,.61,.36,1);
  }
  .dock-nav a:hover{color:var(--ink)}
  .dock-nav a:hover::after{transform:scaleX(1)}
  .dock-nav a.is-active{font-weight:700;color:var(--ink)}
  .dock-nav a.is-active::after{transform:scaleX(1)}
  .dock-actions{display:flex;align-items:center;gap:10px;margin-left:auto}

  .icon-btn{
    width:38px;height:38px;
    display:grid;place-items:center;
    border:1px solid var(--line);
    border-radius:var(--r-badge);
    background:transparent;
    transition:border-color .25s ease,transform .25s ease,color .25s ease;
  }
  .icon-btn:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px)}
  .icon-btn svg{width:17px;height:17px}

  .hamburger{
    display:none;
    width:40px;height:40px;
    border:1px solid var(--line);
    border-radius:var(--r-badge);
    place-items:center;
  }
  .hamburger span{display:block;width:16px;height:1.6px;background:var(--ink);margin:3px auto;transition:transform .3s ease,opacity .3s ease}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    height:48px;
    padding:0 24px;
    border-radius:var(--r-btn);
    font-size:15px;
    font-weight:600;
    letter-spacing:.02em;
    border:1px solid transparent;
    transition:background .25s ease,color .25s ease,transform .2s ease,box-shadow .25s ease,border-color .25s ease;
  }
  .btn-sm{height:38px;padding:0 18px;font-size:14px}
  .btn-primary{background:var(--accent);color:var(--paper);box-shadow:var(--shadow-1)}
  .btn-primary:hover{background:var(--accent-hover);transform:translateY(-2px);box-shadow:var(--shadow-2)}
  .btn-primary:active{transform:translateY(1px)}
  .btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
  .btn-ghost:hover{background:var(--ink);color:var(--paper);transform:translateY(-2px)}
  .btn-ghost:active{transform:translateY(1px)}
  .btn[disabled]{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}

  .link-text{
    display:inline-flex;align-items:center;gap:8px;
    font-size:15px;font-weight:600;
    border-bottom:1px solid var(--line);
    padding-bottom:4px;
    transition:color .25s ease,border-color .25s ease;
  }
  .link-text:hover{color:var(--accent);border-color:var(--accent)}
  .link-text svg{width:15px;height:15px;transition:transform .25s ease}
  .link-text:hover svg{transform:translateX(3px)}

  .badge{
    display:inline-flex;align-items:center;
    gap:6px;
    padding:4px 12px;
    border-radius:var(--r-badge);
    border:1px solid var(--accent-2);
    color:var(--accent-2);
    background:rgba(46,110,99,.06);
    font-size:12px;
    font-weight:600;
    letter-spacing:.1em;
  }

  /* ---------- Hero ---------- */
  .hero{padding:80px 0 0}
  .eyebrow{
    display:flex;align-items:center;gap:14px;
    font-size:12.5px;font-weight:600;letter-spacing:.16em;
    color:var(--muted);
    text-transform:uppercase;
  }
  .eyebrow .num{font-family:var(--mono);color:var(--accent);font-weight:700}
  .eyebrow::after{content:"";flex:1;height:1px;background:var(--line);max-width:120px}
  .hero h1{
    margin-top:26px;
    max-width:900px;
    font-size:clamp(34px,4.4vw,58px);
    font-weight:800;
    line-height:1.08;
    letter-spacing:-.02em;
  }
  .hero h1 i{font-style:normal;color:var(--accent)}
  .hero-lead{
    margin-top:26px;
    max-width:720px;
    font-size:18px;
    line-height:1.85;
    color:#3A4144;
  }
  .hero-meta{
    margin-top:28px;
    display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;
    font-size:13px;letter-spacing:.06em;color:var(--muted);
  }
  .hero-meta span{display:inline-flex;align-items:center;gap:8px}
  .hero-meta span::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--accent-2)}
  .hero-actions{margin-top:36px;display:flex;flex-wrap:wrap;gap:14px}

  /* ---------- 主体栅格 ---------- */
  .content-grid{
    display:grid;
    grid-template-columns:250px minmax(0,1fr);
    gap:64px;
    align-items:start;
    padding:88px 0 0;
  }
  .toc{position:sticky;top:120px}
  .toc-title{font-size:12px;font-weight:600;letter-spacing:.16em;color:var(--muted)}
  .toc ol{list-style:none;margin-top:18px;border-top:1px solid var(--line)}
  .toc a{
    display:flex;gap:12px;align-items:baseline;
    padding:13px 0;
    border-bottom:1px solid var(--line);
    font-size:15px;
    color:var(--muted);
    transition:color .25s ease,padding-left .25s ease;
  }
  .toc a .n{font-family:var(--mono);font-weight:700;color:var(--accent);font-size:13px}
  .toc a:hover{color:var(--ink);padding-left:4px}
  .toc a.is-current{color:var(--ink);font-weight:600}

  .toc-mobile{display:none;border:1px solid var(--line);border-radius:var(--r-card);background:var(--paper-2);padding:4px 20px}
  .toc-mobile summary{
    list-style:none;
    display:flex;align-items:center;justify-content:space-between;
    height:56px;font-size:15px;font-weight:600;cursor:pointer;
  }
  .toc-mobile summary::-webkit-details-marker{display:none}
  .toc-mobile summary::after{content:"＋";color:var(--accent);font-weight:700}
  .toc-mobile[open] summary::after{content:"－"}
  .toc-mobile ol{list-style:none;padding-bottom:14px;border-top:1px solid var(--line)}
  .toc-mobile a{display:block;padding:11px 0;font-size:15px;color:var(--muted);border-bottom:1px solid var(--line)}
  .toc-mobile a:last-child{border-bottom:0}

  .article-flow{max-width:780px}
  .section{padding-top:56px;margin-top:56px;border-top:1px solid var(--line)}
  .section:first-child{padding-top:0;margin-top:0;border-top:0}
  .section h2{
    font-size:clamp(26px,3vw,40px);
    font-weight:700;
    letter-spacing:-.01em;
    line-height:1.2;
    max-width:640px;
  }
  .section h3{margin-top:34px;font-size:20px;font-weight:600;line-height:1.4}
  .section p{margin-top:20px;font-size:17.5px;line-height:1.9;color:#2B3134;max-width:42ch}
  .section p.wide{max-width:none}
  .section p + p{margin-top:1.1em}

  .steps{list-style:none;margin-top:26px;display:grid;gap:18px}
  .steps li{display:grid;grid-template-columns:24px minmax(0,1fr);gap:16px;align-items:start}
  .sq{
    width:24px;height:24px;
    display:grid;place-items:center;
    border-radius:6px;
    background:var(--accent);
    color:var(--paper);
    font-size:13px;font-weight:700;
    margin-top:6px;
  }
  .steps b{display:block;font-size:16.5px;font-weight:600;line-height:1.7}
  .steps span{display:block;margin-top:4px;font-size:15.5px;line-height:1.8;color:var(--muted)}

  .checklist{list-style:none;margin-top:26px;border-top:1px solid var(--line)}
  .checklist li{
    display:grid;grid-template-columns:24px minmax(0,1fr);
    gap:16px;
    padding:16px 0;
    border-bottom:1px solid var(--line);
    font-size:16px;
    line-height:1.8;
  }
  .checklist li em{font-style:normal;color:var(--accent-2);font-weight:700;font-family:var(--mono);font-size:13px;margin-top:6px}

  figure{margin:36px 0 0}
  figure img{
    width:100%;
    aspect-ratio:16/10;
    object-fit:cover;
    border-radius:var(--r-img);
    background:var(--paper-2);
  }
  figcaption{margin-top:12px;font-size:13px;color:var(--muted);text-align:center;letter-spacing:.04em}

  .inline-cta{
    margin-top:44px;
    padding:32px;
    border:1px solid var(--line);
    border-radius:var(--r-block);
    background:var(--paper-2);
    display:flex;align-items:center;justify-content:space-between;
    gap:24px;flex-wrap:wrap;
  }
  .inline-cta strong{display:block;font-size:19px;font-weight:700;line-height:1.4}
  .inline-cta span{display:block;margin-top:8px;font-size:15px;color:var(--muted)}

  /* ---------- FAQ ---------- */
  .faq-block{padding:96px 0 0;margin-top:96px;border-top:1px solid var(--line)}
  .faq-head{max-width:860px;margin:0 auto 36px}
  .faq-head h2{font-size:clamp(26px,3vw,40px)}
  .faq-head p{margin-top:16px;font-size:16px;color:var(--muted)}
  .faq{max-width:860px;margin:0 auto}
  .faq-item{border-bottom:1px solid var(--line)}
  .faq-item:first-child{border-top:1px solid var(--line)}
  .faq-q{
    width:100%;
    min-height:72px;
    display:flex;align-items:center;justify-content:space-between;gap:24px;
    text-align:left;
    font-size:18px;font-weight:600;
    padding:16px 0;
    transition:color .25s ease;
  }
  .faq-q:hover{color:var(--accent)}
  .faq-q .plus{
    flex:0 0 auto;
    width:26px;height:26px;
    display:grid;place-items:center;
    color:var(--accent);
    font-size:22px;font-weight:400;line-height:1;
    transition:transform .28s ease;
  }
  .faq-item.is-open .plus{transform:rotate(45deg)}
  .faq-a{overflow:hidden;max-height:0;transition:max-height .28s ease}
  .faq-a p{padding:0 24px 20px;font-size:16.5px;line-height:1.85;color:#3A4144;max-width:44ch}

  /* ---------- 最终 CTA ---------- */
  .final-cta{
    margin-top:112px;
    background:var(--ink);
    border:1px solid rgba(247,245,241,.14);
    border-radius:var(--r-block);
    padding:64px;
    display:grid;
    grid-template-columns:1.05fr .95fr;
    gap:56px;
    align-items:start;
  }
  .final-cta .eyebrow{color:rgba(247,245,241,.6)}
  .final-cta h2{
    margin-top:22px;
    font-size:clamp(26px,3vw,40px);
    color:rgba(247,245,241,.96);
    max-width:18ch;
  }
  .final-cta h2 i{font-style:normal;color:var(--accent)}
  .final-cta p{margin-top:20px;font-size:16.5px;line-height:1.85;color:rgba(247,245,241,.72);max-width:38ch}
  .final-cta .btn-primary{margin-top:32px}

  .form-card{
    background:rgba(247,245,241,.05);
    border:1px solid rgba(247,245,241,.16);
    border-radius:var(--r-card);
    padding:28px;
  }
  .field{margin-bottom:18px}
  .field:last-of-type{margin-bottom:24px}
  .field label{display:block;font-size:13px;font-weight:600;letter-spacing:.06em;color:rgba(247,245,241,.86);margin-bottom:8px}
  .field input,.field textarea{
    width:100%;
    height:48px;
    padding:0 14px;
    border-radius:var(--r-btn);
    border:1px solid rgba(247,245,241,.22);
    background:rgba(247,245,241,.06);
    color:var(--paper);
    font-size:15px;
    transition:border-color .25s ease,box-shadow .25s ease;
  }
  .field textarea{height:88px;padding:12px 14px;line-height:1.7;resize:vertical}
  .field input::placeholder,.field textarea::placeholder{color:rgba(247,245,241,.42)}
  .field input:focus,.field textarea:focus{
    outline:none;
    border-color:var(--accent);
    box-shadow:0 0 0 3px rgba(228,87,46,.18);
  }
  .field.has-error input,.field.has-error textarea{border-color:var(--danger)}
  .field .tip{display:none;margin-top:8px;font-size:13px;color:#F09C8B}
  .field.has-error .tip{display:block}
  .form-note{margin-top:14px;font-size:13px;color:rgba(247,245,241,.55)}
  .form-ok{display:none;margin-top:14px;font-size:14px;color:#8FD3C4}
  .form-ok.is-on{display:block}

  /* ---------- 页脚 ---------- */
  .footer{margin-top:112px;background:var(--ink);color:rgba(247,245,241,.72)}
  .footer-top{
    display:grid;
    grid-template-columns:1.4fr 1fr 1fr 1.2fr;
    gap:48px;
    padding:72px 0 48px;
  }
  .footer-brand{font-size:19px;font-weight:800;color:rgba(247,245,241,.96)}
  .footer-brand em{font-style:normal;font-size:12px;font-weight:600;letter-spacing:.14em;color:var(--accent);margin-left:6px}
  .fdesc{margin-top:16px;font-size:15px;line-height:1.8;max-width:34ch;color:rgba(247,245,241,.66)}
  .footer h4{font-size:14px;font-weight:600;letter-spacing:.08em;color:rgba(247,245,241,.95);margin-bottom:16px}
  .footer-links{list-style:none;display:grid;gap:10px}
  .footer-links a{font-size:15px;color:rgba(247,245,241,.72);transition:color .25s ease,transform .25s ease;display:inline-block}
  .footer-links a:hover{color:var(--paper);transform:translateX(2px)}
  .footer-contact{font-size:15px;line-height:1.85}
  .footer-contact b{color:rgba(247,245,241,.95);font-weight:600}
  .footer-bottom{
    display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
    padding:22px 0 32px;
    border-top:1px solid rgba(247,245,241,.14);
    font-size:13px;
    color:rgba(247,245,241,.55);
  }

  /* ---------- 抽屉 ---------- */
  .mask{
    position:fixed;inset:0;z-index:110;
    background:rgba(14,18,20,.5);
    opacity:0;visibility:hidden;
    transition:opacity .3s ease,visibility .3s ease;
  }
  .mask.is-open{opacity:1;visibility:visible}
  .drawer{
    position:fixed;top:0;right:0;bottom:0;z-index:120;
    width:min(360px,86vw);
    background:var(--paper);
    box-shadow:var(--shadow-3);
    transform:translateX(101%);
    transition:transform .35s cubic-bezier(.22,.61,.36,1);
    padding:26px 24px 40px;
    overflow-y:auto;
  }
  .drawer.is-open{transform:none}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;gap:16px}
  .drawer-head strong{font-size:17px;font-weight:800}
  .drawer-close{width:36px;height:36px;border:1px solid var(--line);border-radius:var(--r-badge);display:grid;place-items:center;font-size:18px;line-height:1}
  .drawer-close:hover{border-color:var(--accent);color:var(--accent)}
  .drawer-search{margin-top:24px;position:relative}
  .drawer-search input{
    width:100%;height:48px;padding:0 14px 0 42px;
    border-radius:var(--r-btn);
    border:1px solid var(--line);
    background:var(--paper);
    font-size:15px;
  }
  .drawer-search input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(228,87,46,.18)}
  .drawer-search svg{position:absolute;left:14px;top:50%;transform:translateY(-50%);width:16px;height:16px;color:var(--muted)}
  .drawer-nav{margin-top:26px;display:grid;border-top:1px solid var(--line)}
  .drawer-nav a{
    padding:15px 0;
    border-bottom:1px solid var(--line);
    font-size:16px;
    color:var(--ink-2);
    transition:color .25s ease,padding-left .25s ease;
  }
  .drawer-nav a:hover{color:var(--accent);padding-left:4px}
  .drawer-nav a.is-active{color:var(--accent);font-weight:700}
  .drawer .btn{width:100%;margin-top:26px}

  /* ---------- 动效 ---------- */
  @media (prefers-reduced-motion: no-preference){
    .fx{
      opacity:0;
      transform:translateY(12px);
      transition:opacity .5s cubic-bezier(.22,.61,.36,1),transform .5s cubic-bezier(.22,.61,.36,1);
      transition-delay:var(--d,0ms);
    }
    .fx.in{opacity:1;transform:none}
  }

  /* ---------- 断点 ---------- */
  @media (max-width:1279px){
    .container{padding:0 32px}
    .content-grid{grid-template-columns:220px minmax(0,1fr);gap:48px}
    .footer-top{grid-template-columns:1.4fr 1fr 1fr;gap:36px}
    .final-cta{padding:52px}
  }
  @media (max-width:1023px){
    body{font-size:16.5px}
    .dock-nav a{padding:8px 10px;font-size:14px}
    .content-grid{grid-template-columns:minmax(0,1fr);gap:40px;padding-top:64px}
    .toc{display:none}
    .toc-mobile{display:block}
    .article-flow{max-width:none}
    .footer-top{grid-template-columns:1fr 1fr;gap:32px}
    .final-cta{grid-template-columns:1fr;gap:36px;padding:44px}
    .final-cta h2,.final-cta p{max-width:none}
  }
  @media (max-width:767px){
    body{padding-bottom:96px}
    .container{padding:0 20px}
    .dock{
      position:fixed;
      left:12px;right:12px;bottom:12px;top:auto;
      width:auto;height:58px;margin:0;
      border-radius:20px;
      padding-bottom:env(safe-area-inset-bottom);
    }
    .dock.is-scrolled{height:58px}
    .dock-inner{padding:0 10px 0 18px;gap:10px}
    .dock-nav{display:none}
    .dock-actions .icon-btn{display:none}
    .hamburger{display:grid}
    .hero{padding:44px 0 0}
    .hero h1{font-size:clamp(28px,8vw,38px)}
    .hero-lead{font-size:16.5px;max-width:none}
    .hero-actions{gap:12px}
    .hero-actions .btn{flex:1 1 100%}
    .section h2{font-size:clamp(24px,6.4vw,30px)}
    .section p{font-size:16.5px;max-width:none}
    .inline-cta{padding:24px}
    .inline-cta .btn{width:100%}
    .faq-block{padding-top:64px;margin-top:64px}
    .faq-q{font-size:16.5px;min-height:64px;gap:16px}
    .faq-a p{padding:0 0 18px;max-width:none}
    .final-cta{margin-top:72px;padding:28px;border-radius:var(--r-card)}
    .form-card{padding:22px}
    .footer{margin-top:72px}
    .footer-top{grid-template-columns:1fr;gap:28px;padding:52px 0 36px}
    .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  }
  @media (max-width:479px){
    body{font-size:15.5px}
    .hero h1{font-size:clamp(26px,8.4vw,32px)}
    .section h2{font-size:23px}
    .steps b{font-size:15.5px}
    .steps span,.checklist li{font-size:15px}
    .btn{height:46px;font-size:14.5px}
    .final-cta h2{font-size:24px}
  }