/* roulang page: index */
:root{
  --ink:#14453B;
  --ink-light:#2A6B5B;
  --ink-soft:#E7EFEB;
  --accent:#C05B2E;
  --accent-dark:#A5471F;
  --paper:#F5F3EE;
  --paper-alt:#F0EDE6;
  --white:#FFFFFF;
  --deep:#10312A;
  --text:#15181B;
  --text-2:#4A4F52;
  --text-3:#8A8F8C;
  --on-deep:#EDEAE3;
  --line:#E4E0D7;
  --line-ink:rgba(20,69,59,.14);
  --ok:#2F7D5D;
  --warn:#B8863F;
  --err:#B23A2E;
  --info:#2E5E8C;
  --r-card:14px;
  --r-img:12px;
  --r-input:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,49,42,.06);
  --sh-2:0 18px 44px -16px rgba(20,49,42,.14);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --space-1:8px;--space-2:16px;--space-3:24px;--space-4:32px;--space-5:48px;--space-6:64px;--space-7:96px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--sans);
  font-size:1.0625rem;
  line-height:1.85;
  letter-spacing:.01em;
  font-weight:400;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
input,textarea,select{font-family:inherit;font-size:1rem;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
h1,h2{font-family:var(--serif);font-weight:700;}
h3{font-weight:600;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:32px;
  padding-right:32px;
}
.container--wide{max-width:1320px;}

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 28px;
  border-radius:var(--r-pill);
  border:1px solid transparent;
  font-size:.9375rem;
  font-weight:600;
  letter-spacing:.02em;
  cursor:pointer;
  transition:transform .25s ease,background-color .25s ease,border-color .25s ease,color .25s ease,box-shadow .25s ease;
  white-space:nowrap;
}
.btn .arrow{transition:transform .25s ease;display:inline-block;}
.btn:hover .arrow{transform:translateX(4px);}
.btn-primary{background:var(--accent);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--accent-dark);transform:translateY(-2px);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--ink);border:1.5px solid var(--ink);}
.btn-ghost:hover{background:rgba(20,69,59,.07);}
.btn-sm{height:40px;padding:0 20px;font-size:.875rem;}
.btn-block{width:100%;}
.btn-text{
  display:inline-block;
  color:var(--ink);
  font-size:.9375rem;
  font-weight:600;
  padding-bottom:2px;
  border-bottom:1px solid var(--ink);
  background-image:linear-gradient(var(--accent),var(--accent));
  background-repeat:no-repeat;
  background-size:0 1px;
  background-position:left bottom;
  transition:background-size .3s ease,color .25s ease;
}
.btn-text:hover{background-size:100% 1px;color:var(--accent-dark);}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible,textarea:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:2px;
  border-radius:6px;
}

/* ---------- 悬浮胶囊导航 ---------- */
.site-nav{
  position:fixed;
  top:18px;
  left:50%;
  transform:translateX(-50%);
  width:min(1120px,calc(100% - 36px));
  height:64px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:0 12px 0 22px;
  border-radius:var(--r-pill);
  background:rgba(252,251,248,.82);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid rgba(20,69,59,.10);
  box-shadow:var(--sh-1);
  z-index:200;
  transition:height .3s ease,background-color .3s ease,box-shadow .3s ease;
}
.site-nav.is-scrolled{
  height:58px;
  background:rgba(252,251,248,.94);
  box-shadow:0 12px 32px -20px rgba(16,49,42,.45);
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand__mark{
  font-family:var(--sans);
  font-weight:700;
  font-size:1.0625rem;
  letter-spacing:.02em;
  color:var(--ink);
  background:var(--ink-soft);
  border:1px solid var(--line-ink);
  border-radius:8px;
  padding:2px 9px 3px;
  line-height:1.4;
}
.brand__text{
  font-family:var(--serif);
  font-weight:700;
  font-size:1.0625rem;
  letter-spacing:.04em;
  color:var(--text);
}
.nav-links{display:flex;align-items:center;gap:34px;}
.nav-links a{
  position:relative;
  font-size:.9375rem;
  color:var(--text-2);
  padding:6px 0;
  transition:color .25s ease;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:0;height:1px;
  background:var(--ink);
  transition:width .3s ease;
}
.nav-links a:hover{color:var(--ink);}
.nav-links a:hover::after{width:100%;}
.nav-links a.is-active{color:var(--ink);font-weight:600;}
.nav-links a.is-active::after{width:100%;background:var(--accent);}
.nav-right{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:var(--r-pill);
  border:1px solid var(--line-ink);
  background:transparent;
  cursor:pointer;
  padding:0;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
}
.nav-toggle span{display:block;width:18px;height:1px;background:var(--ink);transition:transform .3s ease,opacity .3s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

.mobile-menu{
  position:fixed;
  top:88px;
  left:50%;
  transform:translateX(-50%) translateY(-12px);
  width:min(1120px,calc(100% - 36px));
  background:rgba(252,251,248,.97);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--line-ink);
  border-radius:22px;
  padding:12px;
  z-index:190;
  opacity:0;
  pointer-events:none;
  transition:opacity .28s ease,transform .28s ease;
  box-shadow:var(--sh-2);
}
.mobile-menu.is-open{opacity:1;pointer-events:auto;transform:translateX(-50%) translateY(0);}
.mobile-menu a.mm-link{
  display:flex;
  align-items:center;
  height:52px;
  padding:0 16px;
  border-radius:12px;
  font-size:1rem;
  color:var(--text);
  transition:background-color .2s ease,color .2s ease;
}
.mobile-menu a.mm-link:hover{background:var(--ink-soft);color:var(--ink);}
.mobile-menu .mm-cta{margin-top:8px;}
.mobile-menu .mm-cta .btn{width:100%;}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:170px 0 96px;
  min-height:88vh;
  display:flex;
  align-items:center;
  background:
    radial-gradient(1100px 520px at 88% -8%,rgba(20,69,59,.07),transparent 62%),
    var(--paper);
  overflow:hidden;
}
.hero__grid{
  display:grid;
  grid-template-columns:1.04fr .96fr;
  gap:64px;
  align-items:center;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:.8125rem;
  letter-spacing:.14em;
  color:var(--ink-light);
  border:1px solid var(--line-ink);
  background:var(--white);
  border-radius:var(--r-pill);
  padding:6px 14px;
  margin-bottom:24px;
}
.hero h1{
  font-size:clamp(2.6rem,5.2vw,4.4rem);
  line-height:1.12;
  letter-spacing:-.02em;
  color:var(--text);
  margin-bottom:22px;
}
.hero h1 em{font-style:normal;color:var(--ink);}
.hero__sub{
  font-size:1.125rem;
  color:var(--text-2);
  max-width:26em;
  margin-bottom:34px;
}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:38px;}
.trust-bar{
  display:flex;
  flex-wrap:wrap;
  gap:28px;
  padding-top:26px;
  border-top:1px solid var(--line);
}
.trust-bar li{display:flex;align-items:center;gap:9px;font-size:.875rem;color:var(--text-2);}
.trust-bar svg{flex:0 0 auto;color:var(--ink);}
.hero__visual{position:relative;}
.hero__visual img{
  width:100%;
  aspect-ratio:4/3.2;
  object-fit:cover;
  border-radius:var(--r-img);
  border:1px solid var(--line-ink);
  box-shadow:var(--sh-2);
}
.hero__tag{
  position:absolute;
  left:-14px;
  bottom:34px;
  background:var(--white);
  border:1px solid var(--line-ink);
  border-radius:12px;
  padding:14px 18px;
  box-shadow:var(--sh-2);
  max-width:230px;
}
.hero__tag strong{display:block;font-size:.9375rem;color:var(--ink);font-weight:700;}
.hero__tag span{font-size:.8125rem;color:var(--text-3);}

/* ---------- 板块通用 ---------- */
.section{padding:110px 0;}
.section--alt{background:var(--paper-alt);}
.section--white{background:var(--white);}
.section__head{max-width:760px;margin-bottom:56px;}
.section__head--wide{max-width:900px;}
.section-label{
  display:inline-block;
  font-size:.8125rem;
  letter-spacing:.18em;
  color:var(--accent);
  font-weight:600;
  margin-bottom:16px;
}
.section h2{
  font-size:clamp(1.4rem,2.1vw,1.9rem);
  line-height:1.3;
  color:var(--text);
}
.section h2::after{
  content:"";
  display:block;
  width:40px;
  height:3px;
  background:var(--accent);
  margin-top:14px;
  border-radius:2px;
}
.section__lead{margin-top:20px;color:var(--text-2);font-size:1.0625rem;max-width:44em;}
.section__more{margin-top:40px;}

/* ---------- 痛点区 ---------- */
.pain{
  display:grid;
  grid-template-columns:.78fr 1.22fr;
  gap:64px;
  align-items:start;
}
.pain__intro{position:sticky;top:120px;}
.pain__grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.pain-card{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:28px;
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.pain-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--line-ink);}
.pain-card .num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:40px;height:40px;
  border:1px solid var(--line-ink);
  border-radius:8px;
  font-size:.8125rem;
  font-weight:600;
  letter-spacing:.06em;
  color:var(--ink);
  margin-bottom:20px;
}
.pain-card h3{font-size:1.1875rem;line-height:1.5;margin-bottom:10px;color:var(--text);}
.pain-card p{font-size:.9375rem;color:var(--text-2);line-height:1.85;}

/* ---------- 解决方案交错图文 ---------- */
.solve-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:64px;
  align-items:center;
  padding:48px 0;
  border-top:1px solid var(--line);
}
.solve-row:first-of-type{border-top:0;padding-top:0;}
.solve-row:nth-child(even) .solve-row__media{order:2;}
.solve-row__num{
  display:inline-block;
  font-family:var(--serif);
  font-size:1.0625rem;
  color:var(--accent);
  letter-spacing:.14em;
  margin-bottom:14px;
}
.solve-row h3{
  font-family:var(--serif);
  font-size:clamp(1.25rem,1.7vw,1.5rem);
  line-height:1.4;
  margin-bottom:16px;
  color:var(--text);
}
.solve-row p{color:var(--text-2);font-size:1rem;margin-bottom:12px;}
.solve-row .btn-text{margin-top:14px;}
.solve-row__media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:var(--r-img);
  border:1px solid var(--line-ink);
  transition:transform .5s ease;
}
.solve-row__media{overflow:hidden;border-radius:var(--r-img);}
.solve-row__media:hover img{transform:scale(1.04);}

/* ---------- 成果区 ---------- */
.results{
  background:var(--deep);
  color:var(--on-deep);
  padding:104px 0;
}
.results h2{color:var(--on-deep);}
.results .section__lead{color:rgba(237,234,227,.72);}
.results__grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:32px;
  margin-top:56px;
}
.result-card{border-top:1px solid rgba(237,234,227,.18);padding-top:26px;}
.result-card .num{
  font-family:var(--sans);
  font-weight:700;
  font-size:clamp(2rem,3.4vw,2.75rem);
  line-height:1.1;
  color:var(--accent);
  letter-spacing:.02em;
  display:block;
  margin-bottom:12px;
}
.result-card p{font-size:.9375rem;color:rgba(237,234,227,.74);line-height:1.8;}
.results__note{
  margin-top:44px;
  padding-top:24px;
  border-top:1px solid rgba(237,234,227,.18);
  font-size:.875rem;
  color:rgba(237,234,227,.6);
}

/* ---------- 证言 ---------- */
.voices{display:grid;grid-template-columns:repeat(2,1fr);gap:28px;}
.voice-card{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:34px;
  transition:transform .3s ease,box-shadow .3s ease;
}
.voice-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.voice-card blockquote{margin:0 0 24px;font-size:1.0625rem;line-height:1.85;color:var(--text-2);}
.voice-card blockquote::before{content:"“";color:var(--ink);font-family:var(--serif);font-size:1.6rem;line-height:0;vertical-align:-6px;margin-right:2px;}
.voice-card blockquote::after{content:"”";color:var(--ink);font-family:var(--serif);font-size:1.6rem;line-height:0;vertical-align:-6px;margin-left:2px;}
.voice-meta{display:flex;align-items:center;gap:14px;}
.avatar{
  width:44px;height:44px;flex:0 0 44px;
  border-radius:50%;
  background:var(--ink-soft);
  color:var(--ink);
  display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:1rem;
  border:1px solid var(--line-ink);
}
.voice-meta strong{display:block;font-size:.9375rem;color:var(--text);font-weight:600;}
.voice-meta span{font-size:.8125rem;color:var(--text-3);}

/* ---------- 资讯列表（CMS） ---------- */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;flex-wrap:wrap;margin-bottom:48px;}
.news-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:28px;
}
.news-card{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--line-ink);}
.news-card__link{display:flex;flex-direction:column;height:100%;}
.news-card__media{overflow:hidden;aspect-ratio:16/10;border-bottom:1px solid var(--line);}
.news-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.news-card:hover .news-card__media img{transform:scale(1.04);}
.news-card__body{padding:24px;display:flex;flex-direction:column;flex:1 1 auto;}
.badge{
  display:inline-block;
  align-self:flex-start;
  background:var(--ink-soft);
  color:var(--ink);
  font-size:.75rem;
  font-weight:600;
  letter-spacing:.04em;
  border-radius:var(--r-pill);
  padding:3px 12px;
  margin-bottom:14px;
}
.news-card h3{
  font-size:1.0625rem;
  line-height:1.55;
  color:var(--text);
  margin-bottom:10px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-card p{
  font-size:.9375rem;
  color:var(--text-2);
  line-height:1.8;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin-bottom:20px;
}
.news-card__foot{
  margin-top:auto;
  padding-top:16px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:.8125rem;
  color:var(--text-3);
}
.news-card__foot time{font-variant-numeric:tabular-nums;letter-spacing:.02em;}
.news-card__foot .more{color:var(--ink);font-weight:600;}
.empty-state{
  border:1px dashed var(--line-ink);
  background:var(--ink-soft);
  border-radius:var(--r-card);
  padding:64px 32px;
  text-align:center;
}
.empty-state p{color:var(--ink);font-size:1rem;margin-bottom:20px;}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);max-width:900px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:64px;
  padding:18px 0;
  cursor:pointer;
  list-style:none;
  font-size:1.0625rem;
  font-weight:600;
  color:var(--text);
  transition:color .25s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--ink);}
.faq-icon{position:relative;width:18px;height:18px;flex:0 0 18px;}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--ink);transition:transform .3s ease,opacity .3s ease;}
.faq-icon::before{left:0;top:8.5px;width:18px;height:1px;}
.faq-icon::after{left:8.5px;top:0;width:1px;height:18px;}
.faq-item[open] .faq-icon::after{transform:rotate(90deg);opacity:0;}
.faq-answer{padding:0 0 26px;max-width:720px;color:var(--text-2);font-size:1rem;line-height:1.85;}

/* ---------- CTA 表单通栏 ---------- */
.cta-band{background:var(--deep);color:var(--on-deep);padding:96px 0;}
.cta-band__inner{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px;align-items:start;}
.cta-band h2{color:var(--on-deep);font-size:clamp(1.4rem,2.1vw,1.9rem);line-height:1.3;}
.cta-band h2::after{content:"";display:block;width:40px;height:3px;background:var(--accent);margin-top:14px;border-radius:2px;}
.cta-band__sub{margin-top:20px;color:rgba(237,234,227,.72);font-size:1rem;max-width:30em;}
.cta-form{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:start;}
.field{display:flex;flex-direction:column;}
.field input,.field textarea{
  width:100%;
  background:var(--white);
  border:1px solid var(--line-ink);
  border-radius:var(--r-input);
  padding:0 16px;
  height:48px;
  color:var(--text);
  font-size:.9375rem;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.field textarea{height:48px;padding-top:12px;resize:none;}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3);}
.field input:focus,.field textarea:focus{
  outline:none;
  border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(192,91,46,.14);
}
.field-error{font-size:.875rem;color:var(--err);min-height:20px;margin-top:6px;}
.cta-form .form-actions{grid-column:1 / -1;display:flex;align-items:center;gap:20px;flex-wrap:wrap;}
.form-hint{font-size:.8125rem;color:rgba(237,234,227,.6);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--deep);color:var(--on-deep);padding:80px 0 0;border-top:1px solid rgba(237,234,227,.12);}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:48px;
  padding-bottom:56px;
}
.footer-brand .brand__mark{background:rgba(237,234,227,.1);border-color:rgba(237,234,227,.2);color:var(--on-deep);}
.footer-brand .brand__text{color:var(--on-deep);}
.footer-brand p{margin-top:20px;font-size:.9375rem;color:rgba(237,234,227,.66);line-height:1.85;max-width:34em;}
.footer-col h3{font-size:.9375rem;font-weight:600;color:var(--on-deep);margin-bottom:20px;letter-spacing:.04em;}
.footer-col ul li{margin-bottom:12px;}
.footer-col ul a,.footer-col li span{font-size:.9375rem;color:rgba(237,234,227,.72);transition:color .25s ease;}
.footer-col ul a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:4px;}
.footer-bottom{
  border-top:1px solid rgba(237,234,227,.14);
  padding:24px 0 32px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
  font-size:.8125rem;
  color:rgba(237,234,227,.55);
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .48s cubic-bezier(.22,.61,.36,1),transform .48s cubic-bezier(.22,.61,.36,1);}
.reveal.is-visible{opacity:1;transform:translateY(0);}
.reveal[data-delay="1"]{transition-delay:.06s;}
.reveal[data-delay="2"]{transition-delay:.12s;}
.reveal[data-delay="3"]{transition-delay:.18s;}
.reveal[data-delay="4"]{transition-delay:.24s;}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  .reveal,.reveal.is-visible{opacity:1;transform:none;transition:none;}
  .btn,.news-card,.pain-card,.voice-card,.solve-row__media img{transition:none;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .hero__grid{gap:48px;}
  .nav-links{gap:24px;}
}
@media (max-width:1023px){
  .section{padding:80px 0;}
  .hero{padding:150px 0 80px;min-height:auto;}
  .hero__grid{grid-template-columns:1fr;gap:44px;}
  .hero__visual img{aspect-ratio:16/10;}
  .pain{grid-template-columns:1fr;gap:40px;}
  .pain__intro{position:static;}
  .solve-row{grid-template-columns:1fr;gap:32px;padding:40px 0;}
  .solve-row:nth-child(even) .solve-row__media{order:0;}
  .results__grid{grid-template-columns:repeat(2,1fr);gap:28px;}
  .voices{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .cta-band__inner{grid-template-columns:1fr;gap:36px;}
  .cta-form{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px;}
}
@media (max-width:767px){
  .container{padding-left:24px;padding-right:24px;}
  .nav-links,.nav-right .btn{display:none;}
  .nav-toggle{display:flex;}
  .site-nav{padding:0 10px 0 16px;height:60px;top:14px;}
  .site-nav.is-scrolled{height:56px;}
  .mobile-menu{top:80px;}
  .hero{padding:132px 0 68px;}
  .hero h1{font-size:clamp(2rem,8vw,2.6rem);}
  .hero__sub{font-size:1rem;}
  .hero__actions .btn{width:100%;}
  .hero__tag{left:12px;bottom:12px;max-width:calc(100% - 24px);}
  .trust-bar{gap:16px;}
  .section{padding:64px 0;}
  .pain__grid{grid-template-columns:1fr;}
  .results{padding:72px 0;}
  .results__grid{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .cta-form{grid-template-columns:1fr;}
  .cta-band{padding:68px 0;}
  .footer-grid{grid-template-columns:1fr;gap:34px;padding-bottom:40px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:479px){
  .container{padding-left:18px;padding-right:18px;}
  .hero h1{font-size:1.85rem;}
  .section h2{font-size:1.3rem;}
  .pain-card,.voice-card,.news-card__body{padding:22px;}
  .btn{height:46px;padding:0 22px;}
}

/* roulang page: article */
:root{
  --c-primary:#14453B;
  --c-primary-light:#2A6B5B;
  --c-primary-tint:#E7EFEB;
  --c-accent:#C05B2E;
  --c-accent-dark:#A5471F;
  --c-bg:#F5F3EE;
  --c-surface:#FFFFFF;
  --c-surface-alt:#F0EDE6;
  --c-deep:#10312A;
  --c-text:#15181B;
  --c-text-2:#4A4F52;
  --c-text-3:#8A8F8C;
  --c-on-deep:#EDEAE3;
  --c-line:#E4E0D7;
  --c-line-green:rgba(20,69,59,.14);
  --c-success:#2F7D5D;
  --c-warn:#B8863F;
  --c-error:#B23A2E;
  --c-info:#2E5E8C;
  --r-card:14px;
  --r-img:12px;
  --r-input:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,49,42,.06);
  --sh-2:0 18px 44px -16px rgba(20,49,42,.14);
  --container:1200px;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --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-sans);
  font-size:1.0625rem;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--c-text);
  background:var(--c-bg);
  background-image:radial-gradient(rgba(20,69,59,.035) 1px,transparent 1px);
  background-size:22px 22px;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{font:inherit;color:inherit;}
h1,h2,h3,h4,p,figure,ul,ol,dl{margin:0;}
ul,ol{padding:0;list-style:none;}
h1,h2,h3{font-weight:700;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;}

/* ---------- 导航 ---------- */
.site-nav{
  position:fixed;top:18px;left:50%;transform:translateX(-50%);
  width:min(1120px,calc(100% - 48px));
  height:64px;display:flex;align-items:center;gap:24px;
  padding:0 12px 0 20px;
  background:rgba(252,251,248,.82);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border:1px solid rgba(20,69,59,.10);
  border-radius:var(--r-pill);
  box-shadow:var(--sh-1);
  z-index:120;
  transition:background .3s var(--ease),box-shadow .3s var(--ease),height .3s var(--ease),top .3s var(--ease);
}
.site-nav.is-scrolled{background:rgba(252,251,248,.94);box-shadow:var(--sh-2);height:58px;top:12px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand__mark{
  font-family:var(--font-sans);font-weight:700;font-size:1.0625rem;line-height:1;letter-spacing:.02em;
  color:#fff;background:var(--c-primary);padding:8px 11px;border-radius:10px;
}
.brand__text{font-family:var(--font-serif);font-weight:700;font-size:1rem;letter-spacing:.02em;color:var(--c-text);white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:34px;margin-left:auto;}
.nav-links a{position:relative;font-size:.9375rem;color:var(--c-text-2);padding:8px 0;transition:color .25s var(--ease);}
.nav-links a::after{content:"";position:absolute;left:0;bottom:4px;width:0;height:1px;background:var(--c-primary);transition:width .28s var(--ease);}
.nav-links a:hover{color:var(--c-primary);}
.nav-links a:hover::after{width:100%;}
.nav-links a.is-active{color:var(--c-primary);font-weight:600;}
.nav-links a.is-active::after{width:100%;}
.nav-links__cta{display:none;}
.nav-right{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-line-green);background:transparent;
  border-radius:var(--r-pill);cursor:pointer;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:1.5px;background:var(--c-primary);border-radius:2px;transition:transform .28s var(--ease),opacity .2s var(--ease);}
body.nav-open .nav-toggle span:nth-child(1){transform:translateY(6.5px) rotate(45deg);}
body.nav-open .nav-toggle span:nth-child(2){opacity:0;}
body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-pill);
  font-size:.9375rem;font-weight:600;letter-spacing:.02em;cursor:pointer;border:1.5px solid transparent;
  transition:transform .25s var(--ease),background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
  white-space:nowrap;
}
.btn .arrow{transition:transform .25s var(--ease);}
.btn:hover .arrow{transform:translateX(4px);}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:0 10px 24px -14px rgba(192,91,46,.7);}
.btn-primary:hover{background:var(--c-accent-dark);transform:translateY(-2px);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;border-color:var(--c-primary);color:var(--c-primary);}
.btn-ghost:hover{background:rgba(20,69,59,.07);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{height:40px;padding:0 20px;font-size:.875rem;}
.btn-block{width:100%;}
.link-more{position:relative;display:inline-block;color:var(--c-primary);font-weight:600;font-size:.9375rem;padding-bottom:2px;border-bottom:1px solid var(--c-line-green);}
.link-more::after{content:"";position:absolute;left:0;bottom:-1px;width:0;height:1px;background:var(--c-accent);transition:width .3s var(--ease);}
.link-more:hover::after{width:100%;}

/* ---------- 页面主体 ---------- */
.page-main{padding-top:130px;padding-bottom:24px;}
.breadcrumb{font-size:.875rem;color:var(--c-text-3);display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:28px;}
.breadcrumb a{color:var(--c-text-3);transition:color .25s var(--ease);}
.breadcrumb a:hover{color:var(--c-accent);}
.breadcrumb .sep{color:var(--c-line);}
.breadcrumb .current{color:var(--c-text);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--c-primary-tint);color:var(--c-primary);font-size:.8125rem;font-weight:600;letter-spacing:.02em;
}
.badge-outline{background:transparent;border:1px solid var(--c-line-green);color:var(--c-text-2);font-weight:500;}

.article-head{max-width:840px;margin:0 auto 32px;text-align:left;}
.article-head h1{
  font-family:var(--font-serif);font-weight:700;
  font-size:clamp(1.75rem,3.2vw,2.2rem);line-height:1.28;letter-spacing:-.01em;
  margin:18px 0 20px;color:var(--c-text);
}
.article-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:.875rem;color:var(--c-text-3);}
.article-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--c-line);}
.article-meta time{font-variant-numeric:tabular-nums;letter-spacing:.02em;}

.article-cover{max-width:1000px;margin:0 auto 48px;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--c-line);background:var(--c-surface-alt);}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;}

.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:48px;max-width:1120px;margin:0 auto;}
.article-sheet{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:48px 52px;box-shadow:var(--sh-1);}

.toc-mobile{display:block;margin-bottom:24px;}
.toc-mobile summary{
  cursor:pointer;list-style:none;font-size:.9375rem;font-weight:600;color:var(--c-primary);
  padding:14px 18px;background:var(--c-primary-tint);border-radius:var(--r-input);border:1px solid var(--c-line-green);
}
.toc-mobile summary::-webkit-details-marker{display:none;}
.toc-mobile[open] summary{border-radius:var(--r-input) var(--r-input) 0 0;}
.article-toc{display:none;}
.toc-block ol{counter-reset:toc;padding:14px 18px;}
.toc-mobile .toc-block ol{border:1px solid var(--c-line-green);border-top:none;border-radius:0 0 var(--r-input) var(--r-input);}
.toc-block li{counter-increment:toc;margin:0;}
.toc-block li a{
  display:block;padding:8px 0 8px 26px;position:relative;font-size:.875rem;line-height:1.5;
  color:var(--c-text-2);border-bottom:1px solid rgba(228,224,215,.7);transition:color .25s var(--ease),padding-left .25s var(--ease);
}
.toc-block li a::before{content:counter(toc,decimal-leading-zero);position:absolute;left:0;top:8px;font-size:.75rem;color:var(--c-text-3);font-variant-numeric:tabular-nums;}
.toc-block li a:hover{color:var(--c-accent);padding-left:30px;}

/* ---------- 正文 ---------- */
.article-body{font-size:1.125rem;line-height:1.9;color:var(--c-text-2);}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.45em;}
.article-body h2{
  font-family:var(--font-serif);font-size:clamp(1.35rem,2vw,1.6rem);font-weight:700;line-height:1.35;
  color:var(--c-text);margin:2.2em 0 .9em;padding-left:16px;border-left:3px solid var(--c-accent);
}
.article-body h3{font-family:var(--font-sans);font-size:1.1875rem;font-weight:600;line-height:1.5;color:var(--c-text);margin:1.9em 0 .7em;}
.article-body h4{font-family:var(--font-sans);font-size:1.0625rem;font-weight:600;color:var(--c-text);margin:1.6em 0 .6em;}
.article-body strong{color:var(--c-text);font-weight:600;}
.article-body a{color:var(--c-primary);border-bottom:1px solid var(--c-line-green);transition:border-color .25s var(--ease),color .25s var(--ease);}
.article-body a:hover{color:var(--c-accent);border-color:var(--c-accent);}
.article-body ul,.article-body ol{margin:0 0 1.45em;padding-left:1.4em;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin:.5em 0;}
.article-body li::marker{color:var(--c-primary-light);}
.article-body blockquote{
  margin:1.6em 0;padding:20px 24px;background:var(--c-primary-tint);
  border-left:3px solid var(--c-primary);border-radius:0 var(--r-input) var(--r-input) 0;color:var(--c-text-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{width:100%;height:auto;margin:1.8em auto;border:1px solid var(--c-line);}
.article-body figure{margin:1.8em 0;}
.article-body figcaption{font-size:.875rem;color:var(--c-text-3);text-align:center;margin-top:10px;}
.article-body table{width:100%;border-collapse:collapse;margin:1.8em 0;font-size:1rem;background:var(--c-surface);}
.article-body th,.article-body td{border:1px solid var(--c-line);padding:12px 16px;text-align:left;vertical-align:top;}
.article-body th{background:var(--c-primary-tint);color:var(--c-primary);font-weight:600;}
.article-body code{background:var(--c-surface-alt);padding:2px 7px;border-radius:6px;font-size:.94em;}
.article-body pre{
  background:var(--c-deep);color:var(--c-on-deep);padding:22px 24px;border-radius:var(--r-input);
  overflow-x:auto;margin:1.6em 0;font-size:.9375rem;line-height:1.7;
}
.article-body pre code{background:transparent;padding:0;color:inherit;}
.article-body hr{border:none;border-top:1px solid var(--c-line);margin:2.4em 0;}

.empty-state{
  border:1px dashed var(--c-line-green);background:var(--c-primary-tint);border-radius:var(--r-card);
  padding:56px 32px;text-align:center;
}
.empty-state h2{font-family:var(--font-serif);font-size:1.35rem;border:none;padding:0;margin:0 0 12px;color:var(--c-text);}
.empty-state p{color:var(--c-text-2);margin-bottom:24px;}

/* ---------- 文末 ---------- */
.article-foot{margin-top:44px;padding-top:32px;border-top:1px solid var(--c-line);}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px;}
.tag{
  display:inline-flex;align-items:center;height:32px;padding:0 16px;border-radius:var(--r-pill);
  background:var(--c-surface-alt);border:1px solid var(--c-line);font-size:.875rem;color:var(--c-text-2);
  transition:background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
}
.tag:hover{background:var(--c-primary-tint);color:var(--c-primary);border-color:var(--c-line-green);}
.foot-actions{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;}
.section--compact{padding:72px 0;}
.section-head{max-width:720px;margin-bottom:48px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:10px;font-size:.8125rem;font-weight:600;letter-spacing:.14em;
  color:var(--c-accent);margin-bottom:14px;text-transform:uppercase;
}
.section-head .eyebrow::before{content:"";width:26px;height:1px;background:var(--c-accent);}
.section-head h2{font-family:var(--font-serif);font-size:clamp(1.4rem,2.1vw,1.9rem);line-height:1.3;color:var(--c-text);position:relative;padding-bottom:16px;}
.section-head h2::after{content:"";position:absolute;left:0;bottom:0;width:40px;height:3px;background:var(--c-accent);border-radius:2px;}
.section-head p{margin-top:16px;color:var(--c-text-2);font-size:1rem;}
.section-head--row{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;max-width:none;}

/* ---------- 相关推荐卡片 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.post-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--c-line-green);}
.post-card__cover{overflow:hidden;background:var(--c-surface-alt);aspect-ratio:16/10;}
.post-card__cover img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .5s var(--ease);}
.post-card:hover .post-card__cover img{transform:scale(1.04);}
.post-card__body{padding:24px 24px 20px;display:flex;flex-direction:column;flex:1;}
.post-card__body h3{
  font-size:1.0625rem;font-weight:600;line-height:1.55;color:var(--c-text);margin:14px 0 10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card__body p{
  font-size:.9375rem;color:var(--c-text-2);line-height:1.75;margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card__foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:.8125rem;color:var(--c-text-3);padding-top:14px;border-top:1px solid var(--c-line);}
.post-card__foot time{font-variant-numeric:tabular-nums;letter-spacing:.04em;}

/* ---------- CTA ---------- */
.cta-band{background:var(--c-deep);color:var(--c-on-deep);padding:72px 0;}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;}
.cta-inner h2{font-family:var(--font-serif);font-size:clamp(1.4rem,2.1vw,1.8rem);color:#fff;line-height:1.3;}
.cta-inner p{color:rgba(237,234,227,.78);margin-top:10px;max-width:560px;font-size:1rem;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-deep);color:var(--c-on-deep);padding:72px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-col h3{font-size:1rem;font-weight:600;color:#fff;margin-bottom:18px;letter-spacing:.02em;}
.footer-col ul li{margin-bottom:12px;font-size:.9375rem;}
.footer-col ul li a,.footer-col ul li span{color:rgba(237,234,227,.76);transition:color .25s var(--ease);}
.footer-col ul li a:hover{color:var(--c-accent);text-decoration:underline;text-underline-offset:4px;}
.footer-brand .brand__mark{background:var(--c-accent);}
.footer-brand .brand__text{color:#fff;}
.footer-brand p{margin-top:18px;font-size:.9375rem;line-height:1.8;color:rgba(237,234,227,.72);max-width:340px;}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(237,234,227,.14);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:.8125rem;color:rgba(237,234,227,.6);
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .48s var(--ease),transform .48s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* ---------- 响应式 ---------- */
@media (min-width:1280px){
  .article-layout{grid-template-columns:200px minmax(0,780px);justify-content:center;}
  .article-toc{display:block;position:sticky;top:112px;align-self:start;border:1px solid var(--c-line);border-radius:var(--r-card);background:var(--c-surface);padding:18px 4px;}
  .article-toc .toc-title{font-size:.8125rem;font-weight:600;letter-spacing:.12em;color:var(--c-text-3);padding:0 18px 10px;border-bottom:1px solid var(--c-line);margin-bottom:8px;}
  .toc-mobile{display:none;}
}
@media (max-width:1180px){
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:900px){
  .container{padding:0 24px;}
  .site-nav{width:calc(100% - 32px);padding:0 10px 0 16px;gap:12px;height:60px;}
  .nav-toggle{display:flex;}
  .nav-links{
    position:fixed;top:96px;left:16px;right:16px;display:none;flex-direction:column;align-items:stretch;gap:0;
    background:rgba(252,251,248,.98);border:1px solid var(--c-line-green);border-radius:22px;
    box-shadow:var(--sh-2);padding:14px;margin-left:0;
  }
  body.nav-open .nav-links{display:flex;}
  .nav-links a{height:52px;display:flex;align-items:center;padding:0 16px;border-radius:12px;font-size:1rem;}
  .nav-links a::after{display:none;}
  .nav-links a:hover{background:var(--c-primary-tint);}
  .nav-links a.is-active{background:var(--c-primary-tint);}
  .nav-links__cta{
    display:flex;align-items:center;justify-content:center;height:48px;margin-top:10px;
    background:var(--c-accent);color:#fff !important;border-radius:var(--r-pill);font-weight:600;
  }
  .nav-right .btn-primary{display:none;}
  .page-main{padding-top:118px;}
  .section{padding:72px 0;}
  .section--compact{padding:56px 0;}
  .article-sheet{padding:32px 28px;}
  .article-body{font-size:1.0625rem;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  .card-grid{grid-template-columns:1fr;}
  .section-head--row{flex-direction:column;align-items:flex-start;}
}
@media (max-width:560px){
  .container{padding:0 18px;}
  .brand__text{font-size:.9375rem;}
  body{font-size:1rem;}
  h1{font-size:clamp(1.55rem,6vw,1.9rem);}
  .article-head h1{font-size:1.6rem;}
  .page-main{padding-top:108px;}
  .section{padding:60px 0;}
  .article-sheet{padding:26px 20px;border-radius:var(--r-card);}
  .article-body{font-size:1rem;line-height:1.85;}
  .article-body h2{font-size:1.25rem;}
  .btn{width:100%;padding:0 22px;}
  .foot-actions{flex-direction:column;align-items:stretch;}
  .foot-actions .btn{width:100%;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-inner .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .breadcrumb .current{max-width:180px;}
}

/* roulang page: category1 */
:root{
  --green:#14453B;
  --green-light:#2A6B5B;
  --green-soft:#E7EFEB;
  --orange:#C05B2E;
  --orange-dark:#A5471F;
  --paper:#F5F3EE;
  --paper-alt:#F0EDE6;
  --white:#FFFFFF;
  --ink-dark:#10312A;
  --text:#15181B;
  --text-2:#4A4F52;
  --text-3:#8A8F8C;
  --on-dark:#EDEAE3;
  --line:#E4E0D7;
  --line-green:rgba(20,69,59,.14);
  --ok:#2F7D5D;
  --warn:#B8863F;
  --err:#B23A2E;
  --info:#2E5E8C;
  --r-card:14px;
  --r-img:12px;
  --r-input:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,49,42,.06);
  --sh-2:0 18px 44px -16px rgba(20,49,42,.14);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --nav-h:64px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  font-size:1.0625rem;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--orange);outline-offset:2px;border-radius:6px}

.container{width:min(1200px,100% - 64px);margin:0 auto}

/* ---------- 导航 ---------- */
.site-nav{
  position:fixed;
  top:18px;
  left:50%;
  transform:translateX(-50%);
  width:min(1120px,calc(100% - 36px));
  height:var(--nav-h);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  padding:0 12px 0 22px;
  border-radius:var(--r-pill);
  background:rgba(252,251,248,.82);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid rgba(20,69,59,.10);
  box-shadow:var(--sh-1);
  z-index:120;
  transition:height .3s ease,background .3s ease,box-shadow .3s ease;
}
.site-nav.is-scrolled{
  height:58px;
  background:rgba(252,251,248,.94);
  box-shadow:var(--sh-2);
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand__mark{
  font-family:var(--sans);
  font-weight:700;
  font-size:.9375rem;
  letter-spacing:.02em;
  line-height:1;
  color:#fff;
  background:var(--green);
  padding:8px 11px;
  border-radius:10px;
}
.brand__text{
  font-family:var(--serif);
  font-weight:700;
  font-size:1rem;
  letter-spacing:.04em;
  color:var(--text);
  white-space:nowrap;
}
.nav-links{display:flex;align-items:center;gap:34px;flex:1 1 auto;justify-content:center}
.nav-links a{
  position:relative;
  font-size:.9375rem;
  color:var(--text-2);
  padding:6px 0;
  transition:color .25s ease;
  white-space:nowrap;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:1px;
  background:var(--green);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .3s ease;
}
.nav-links a:hover{color:var(--green)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--green);font-weight:600}
.nav-links a.is-active::after{transform:scaleX(1)}
.nav-right{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-cta-mobile{display:none}

.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line-green);
  border-radius:var(--r-pill);
  background:transparent;
  cursor:pointer;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:4px;
  transition:background .25s ease;
}
.nav-toggle span{
  display:block;
  width:18px;height:1.5px;
  background:var(--green);
  border-radius:2px;
  transition:transform .3s ease,opacity .3s ease;
}
.nav-toggle:hover{background:rgba(20,69,59,.07)}
.nav-toggle.is-open span:nth-child(1){transform:translateY(5.5px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-5.5px) rotate(-45deg)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 28px;
  border-radius:var(--r-pill);
  font-size:.9375rem;
  font-weight:600;
  letter-spacing:.02em;
  cursor:pointer;
  border:1.5px solid transparent;
  transition:background .25s ease,color .25s ease,transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.btn-primary{background:var(--orange);color:#fff}
.btn-primary:hover{background:var(--orange-dark);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0)}
.btn-primary .arrow{transition:transform .25s ease}
.btn-primary:hover .arrow{transform:translateX(4px)}
.btn-ghost{background:transparent;border-color:var(--green);color:var(--green)}
.btn-ghost:hover{background:rgba(20,69,59,.07);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{height:40px;padding:0 20px;font-size:.875rem}
.btn-block{width:100%}

.text-link{
  position:relative;
  display:inline-block;
  font-size:.9375rem;
  font-weight:600;
  color:var(--green);
  padding-bottom:3px;
}
.text-link::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:100%;height:1px;
  background:var(--green);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .3s ease;
}
.text-link:hover::after{transform:scaleX(1)}

/* ---------- 板块通用 ---------- */
.section{padding:104px 0}
.section--tight{padding:80px 0}
.section--alt{background:var(--paper-alt)}
.section--white{background:var(--white)}
.sec-head{max-width:760px;margin-bottom:52px}
.sec-head--center{margin-left:auto;margin-right:auto;text-align:center}
.sec-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:34px;height:34px;
  border:1px solid var(--green-light);
  border-radius:6px;
  font-size:.8125rem;
  font-weight:600;
  letter-spacing:.06em;
  color:var(--green);
  margin-bottom:18px;
}
h2.sec-title{
  font-family:var(--serif);
  font-weight:700;
  font-size:clamp(1.4rem,2.1vw,1.9rem);
  line-height:1.3;
  letter-spacing:-.01em;
  color:var(--ink-dark);
}
h2.sec-title::after{
  content:"";
  display:block;
  width:40px;height:3px;
  margin-top:12px;
  background:var(--orange);
  border-radius:2px;
}
.sec-head--center h2.sec-title::after{margin-left:auto;margin-right:auto}
.sec-sub{margin-top:18px;color:var(--text-2);font-size:1.0625rem;max-width:680px}
.sec-head--center .sec-sub{margin-left:auto;margin-right:auto}

.eyebrow{
  display:inline-block;
  font-size:.8125rem;
  letter-spacing:.18em;
  color:var(--green-light);
  text-transform:uppercase;
  margin-bottom:14px;
}
.tag{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:var(--r-pill);
  background:var(--green-soft);
  color:var(--green);
  font-size:.8125rem;
  font-weight:600;
  letter-spacing:.02em;
}

/* ---------- 分类页 Hero ---------- */
.cat-hero{
  position:relative;
  padding:150px 0 68px;
  min-height:42vh;
  display:flex;
  align-items:flex-end;
  color:var(--on-dark);
  background-image:linear-gradient(180deg,rgba(16,49,42,.80),rgba(16,49,42,.80)),url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.cat-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(237,234,227,.05) 1px,transparent 1px);
  background-size:26px 26px;
  opacity:.5;
  pointer-events:none;
}
.cat-hero .container{position:relative;z-index:2}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:.875rem;
  color:rgba(237,234,227,.72);
  margin-bottom:22px;
}
.breadcrumb a{color:rgba(237,234,227,.72);transition:color .25s ease}
.breadcrumb a:hover{color:var(--orange)}
.breadcrumb .sep{color:rgba(237,234,227,.42)}
.breadcrumb .current{color:#fff}
.cat-hero h1{
  font-family:var(--serif);
  font-weight:700;
  font-size:clamp(1.9rem,3.4vw,2.9rem);
  line-height:1.2;
  letter-spacing:-.02em;
  color:#fff;
  max-width:900px;
}
.cat-hero .lead{
  margin-top:18px;
  max-width:620px;
  font-size:1.0625rem;
  color:rgba(237,234,227,.82);
}
.cat-hero .hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.cat-hero .hero-tags .tag{
  background:rgba(237,234,227,.14);
  color:var(--on-dark);
  border:1px solid rgba(237,234,227,.22);
}

/* ---------- 介绍块 ---------- */
.intro-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:64px;
  align-items:center;
}
.intro-copy p + p{margin-top:20px}
.intro-copy p{color:var(--text-2)}
.intro-media{
  position:relative;
  border-radius:var(--r-img);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
  aspect-ratio:16/11;
  background:var(--paper-alt);
}
.intro-media img{width:100%;height:100%;object-fit:cover;border-radius:0}
.intro-media .float-card{
  position:absolute;
  left:20px;bottom:20px;
  background:rgba(252,251,248,.94);
  border:1px solid var(--line-green);
  border-radius:12px;
  padding:14px 18px;
  box-shadow:var(--sh-2);
  max-width:230px;
}
.intro-media .float-card strong{
  display:block;
  font-family:var(--serif);
  font-size:1.5rem;
  color:var(--green);
  line-height:1.2;
}
.intro-media .float-card span{font-size:.8125rem;color:var(--text-2);line-height:1.6;display:block;margin-top:4px}

/* ---------- 双栏长版式 ---------- */
.split{display:grid;grid-template-columns:320px 1fr;gap:64px;align-items:start}
.split__side{position:sticky;top:120px}
.split__side .side-note{
  margin-top:18px;
  font-size:.9375rem;
  color:var(--text-2);
}
.split__side .text-link{margin-top:24px}
.checklist{border-top:1px solid var(--line)}
.checklist__item{
  display:grid;
  grid-template-columns:64px 1fr;
  gap:24px;
  padding:30px 0;
  border-bottom:1px solid var(--line);
  transition:transform .3s ease,background .3s ease;
}
.checklist__item:hover{transform:translateX(4px)}
.checklist__no{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:44px;height:44px;
  border:1px solid var(--green-light);
  border-radius:8px;
  font-size:.875rem;
  font-weight:600;
  letter-spacing:.04em;
  color:var(--green);
  background:var(--white);
}
.checklist__item h3{
  font-size:1.1875rem;
  font-weight:600;
  line-height:1.5;
  color:var(--ink-dark);
}
.checklist__item p{
  margin-top:8px;
  font-size:1rem;
  color:var(--text-2);
  max-width:640px;
}

/* ---------- 卡片 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--line-green)}
.card__media{
  aspect-ratio:16/10;
  overflow:hidden;
  border-bottom:1px solid var(--line);
  background:var(--paper-alt);
}
.card__media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .5s ease}
.card:hover .card__media img{transform:scale(1.04)}
.card__body{padding:26px 26px 28px;display:flex;flex-direction:column;gap:12px;flex:1}
.card__body h3{font-size:1.1875rem;font-weight:600;line-height:1.5;color:var(--ink-dark)}
.card__body p{font-size:1rem;color:var(--text-2);line-height:1.8}
.card__foot{
  margin-top:auto;
  padding-top:16px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:.875rem;
  color:var(--text-3);
}

/* ---------- 数据带 ---------- */
.stats{background:var(--ink-dark);color:var(--on-dark)}
.stats .sec-title{color:#fff}
.stats .sec-sub{color:rgba(237,234,227,.76)}
.stats-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:32px;
  margin-top:8px;
}
.stat{
  padding:28px 0 0;
  border-top:1px solid rgba(237,234,227,.22);
}
.stat strong{
  display:block;
  font-family:var(--sans);
  font-weight:700;
  font-size:clamp(2rem,3vw,2.6rem);
  line-height:1.1;
  letter-spacing:-.01em;
  color:var(--orange);
}
.stat span{display:block;margin-top:10px;font-size:.9375rem;color:rgba(237,234,227,.78);line-height:1.7}

/* ---------- FAQ ---------- */
.faq{max-width:880px;margin:0 auto;border-top:1px solid var(--line)}
.faq__item{border-bottom:1px solid var(--line)}
.faq__q{
  width:100%;
  min-height:64px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  padding:18px 4px;
  background:transparent;
  border:0;
  text-align:left;
  cursor:pointer;
  font-size:1.0625rem;
  font-weight:600;
  color:var(--ink-dark);
  transition:color .25s ease;
}
.faq__q:hover{color:var(--green)}
.faq__icon{
  position:relative;
  flex:0 0 auto;
  width:18px;height:18px;
  transition:transform .35s ease;
}
.faq__icon::before,
.faq__icon::after{
  content:"";
  position:absolute;
  left:50%;top:50%;
  background:var(--green);
  border-radius:2px;
}
.faq__icon::before{width:14px;height:1.5px;transform:translate(-50%,-50%)}
.faq__icon::after{width:1.5px;height:14px;transform:translate(-50%,-50%)}
.faq__item.is-open .faq__icon{transform:rotate(90deg)}
.faq__item.is-open .faq__icon::after{opacity:0}
.faq__a{
  display:grid;
  grid-template-rows:0fr;
  transition:grid-template-rows .35s ease;
}
.faq__item.is-open .faq__a{grid-template-rows:1fr}
.faq__a > div{overflow:hidden}
.faq__a p{
  max-width:720px;
  padding:0 4px 26px;
  color:var(--text-2);
  font-size:1rem;
  line-height:1.85;
}

/* ---------- CTA ---------- */
.cta{
  background:var(--ink-dark);
  color:var(--on-dark);
  padding:88px 0;
}
.cta-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:48px;
  flex-wrap:wrap;
}
.cta h2{
  font-family:var(--serif);
  font-weight:700;
  font-size:clamp(1.4rem,2.1vw,1.9rem);
  line-height:1.3;
  color:#fff;
}
.cta p{margin-top:14px;color:rgba(237,234,227,.78);max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-dark);color:var(--on-dark);padding:72px 0 28px}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:44px;
  border-bottom:1px solid rgba(237,234,227,.16);
}
.footer-col h3{
  font-size:.875rem;
  font-weight:600;
  letter-spacing:.1em;
  color:rgba(237,234,227,.6);
  margin-bottom:18px;
}
.footer-col ul li{margin-bottom:12px}
.footer-col ul li a,
.footer-col ul li span{
  font-size:.9375rem;
  color:var(--on-dark);
  transition:color .25s ease;
}
.footer-col ul li a:hover{color:var(--orange);text-decoration:underline;text-underline-offset:4px}
.footer-brand .brand{margin-bottom:18px}
.footer-brand .brand__mark{background:rgba(237,234,227,.14);border:1px solid rgba(237,234,227,.24)}
.footer-brand .brand__text{color:#fff}
.footer-brand p{font-size:.9375rem;color:rgba(237,234,227,.72);max-width:340px;line-height:1.85}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-top:24px;
  font-size:.875rem;
  color:rgba(237,234,227,.6);
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .48s cubic-bezier(.22,.61,.36,1),transform .48s cubic-bezier(.22,.61,.36,1)}
.reveal.is-visible{opacity:1;transform:translateY(0)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{width:min(1200px,100% - 56px)}
  .split{grid-template-columns:280px 1fr;gap:48px}
}
@media (max-width:1023px){
  .container{width:min(1200px,100% - 48px)}
  .section{padding:72px 0}
  .section--tight{padding:64px 0}
  .intro-grid{grid-template-columns:1fr;gap:40px}
  .split{grid-template-columns:1fr;gap:36px}
  .split__side{position:static}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:900px){
  .nav-links{
    position:absolute;
    top:calc(100% + 12px);
    left:0;right:0;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:10px;
    border-radius:24px;
    background:rgba(252,251,248,.98);
    border:1px solid var(--line-green);
    box-shadow:var(--sh-2);
  }
  .nav-links.is-open{display:flex}
  .nav-links a{
    height:52px;
    display:flex;
    align-items:center;
    justify-content:center;
    border-radius:16px;
    font-size:1rem;
    padding:0;
  }
  .nav-links a::after{display:none}
  .nav-links a:hover{background:rgba(20,69,59,.06)}
  .nav-links a.is-active{background:var(--green-soft)}
  .nav-cta-mobile{
    display:inline-flex;
    margin-top:6px;
    width:100%;
    height:48px;
    align-items:center;
    justify-content:center;
    border-radius:16px;
    background:var(--orange);
    color:#fff;
    font-weight:600;
  }
  .nav-cta-mobile:hover{background:var(--orange-dark) !important}
  .nav-toggle{display:flex}
  .nav-right .btn{display:none}
}
@media (max-width:767px){
  .container{width:calc(100% - 36px)}
  body{font-size:1rem}
  .cat-hero{padding:132px 0 56px;min-height:38vh}
  .section{padding:64px 0}
  .card-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr;gap:20px}
  .checklist__item{grid-template-columns:1fr;gap:14px}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:28px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:479px){
  .brand__text{font-size:.9375rem}
  .cat-hero h1{font-size:1.6rem}
  h2.sec-title{font-size:1.3rem}
  .card__body{padding:22px 20px 24px}
  .btn{height:46px;padding:0 22px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category2 */
:root{
  --green:#14453B;
  --green-2:#2A6B5B;
  --green-pale:#E7EFEB;
  --orange:#C05B2E;
  --orange-2:#A5471F;
  --paper:#F5F3EE;
  --white:#FFFFFF;
  --alt:#F0EDE6;
  --dark:#10312A;
  --ink:#15181B;
  --ink-2:#4A4F52;
  --ink-3:#8A8F8C;
  --line:#E4E0D7;
  --line-green:rgba(20,69,59,.14);
  --ok:#2F7D5D;
  --warn:#B8863F;
  --err:#B23A2E;
  --info:#2E5E8C;
  --r-card:14px;
  --r-img:12px;
  --r-input:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,49,42,.06);
  --sh-2:0 18px 44px -16px rgba(20,49,42,.14);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,"Times New Roman",serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --sp:8px;
  --nav-h:64px;
}
*,*::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(--sans);
  font-size:1.0625rem;
  line-height:1.85;
  letter-spacing:.01em;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:solid;border-width:1px;border-color:var(--line-green);border-radius:var(--r-img)}
a{color:inherit;text-decoration:none}
button,input,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--orange);outline-offset:2px}
section[id]{scroll-margin-top:112px}
::selection{background:var(--green-pale);color:var(--green)}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.container--wide{max-width:1320px}

/* ---------- 通用排版 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:.8125rem;letter-spacing:.16em;color:var(--green-2);
  text-transform:uppercase;font-weight:600;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--orange)}
h1,h2{font-family:var(--serif);font-weight:700;letter-spacing:-.01em;color:var(--ink)}
h2{font-size:clamp(1.4rem,2.1vw,1.9rem);line-height:1.3}
h3{font-size:1.1875rem;line-height:1.5;font-weight:600}
.sec-title{max-width:760px}
.sec-title h2{margin-bottom:14px}
.sec-title h2::after{content:"";display:block;width:40px;height:3px;background:var(--orange);margin-top:12px}
.sec-lead{color:var(--ink-2);max-width:720px;margin-top:8px}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:48px}

.section{padding:110px 0}
.section--tight{padding:88px 0}
.section--alt{background:var(--white)}
.section--paper{background:var(--alt)}

/* ---------- 悬浮胶囊导航 ---------- */
.site-nav{
  position:fixed;top:18px;left:50%;transform:translateX(-50%);
  width:calc(100% - 36px);max-width:1120px;height:var(--nav-h);
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:0 14px 0 22px;
  background:rgba(252,251,248,.82);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border:1px solid rgba(20,69,59,.10);
  border-radius:var(--r-pill);
  box-shadow:var(--sh-1);
  z-index:90;
  transition:height .28s ease,background .28s ease,box-shadow .28s ease,top .28s ease;
}
.site-nav.is-scrolled{
  height:58px;top:12px;
  background:rgba(252,251,248,.94);
  box-shadow:var(--sh-2);
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand__mark{
  display:inline-grid;place-items:center;
  width:36px;height:36px;border-radius:12px;
  background:var(--green);color:#F2EFE8;
  font-family:var(--sans);font-weight:600;font-size:.9375rem;letter-spacing:.02em;
}
.brand__text{
  font-family:var(--serif);font-weight:700;font-size:1.0625rem;letter-spacing:.02em;color:var(--ink);
  white-space:nowrap;
}
.nav-links{display:flex;align-items:center;gap:34px}
.nav-links a{
  position:relative;font-size:.9375rem;color:var(--ink-2);padding:6px 0;white-space:nowrap;
  transition:color .22s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:1px;background:var(--green);
  transition:width .28s cubic-bezier(.22,.61,.36,1);
}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after{width:100%}
.nav-links a.is-active{color:var(--green);font-weight:600}
.nav-links a.is-active::after{width:100%;background:var(--green)}
.nav-right{display:flex;align-items:center;gap:10px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-pill);
  background:transparent;border:1px solid var(--line-green);cursor:pointer;
  padding:0;flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:1.5px;background:var(--ink);transition:transform .25s ease,opacity .25s ease}
.site-nav.is-open .nav-toggle span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
.site-nav.is-open .nav-toggle span:nth-child(2){opacity:0}
.site-nav.is-open .nav-toggle span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:48px;padding:0 28px;border-radius:var(--r-pill);
  font-size:.9375rem;font-weight:600;letter-spacing:.01em;cursor:pointer;
  border:1.5px solid transparent;background:transparent;
  transition:transform .22s ease,background .22s ease,border-color .22s ease,color .22s ease,box-shadow .22s ease;
}
.btn .btn__arrow{transition:transform .22s ease}
.btn-primary{background:var(--orange);color:#fff;border-color:var(--orange)}
.btn-primary:hover{background:var(--orange-2);border-color:var(--orange-2);transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-primary:hover .btn__arrow{transform:translateX(4px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{border-color:var(--green);color:var(--green)}
.btn-ghost:hover{background:rgba(20,69,59,.07);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-light{border-color:rgba(237,234,227,.55);color:#EDEAE3}
.btn-light:hover{background:rgba(237,234,227,.12);transform:translateY(-2px)}
.btn-sm{height:40px;padding:0 20px;font-size:.9375rem}
.btn-block{width:100%}
.btn-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.9375rem;font-weight:600;color:var(--green);
  padding-bottom:4px;position:relative;
}
.btn-link::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:100%;background:var(--green);
  transform:scaleX(.35);transform-origin:left;transition:transform .3s cubic-bezier(.22,.61,.36,1);
}
.btn-link:hover::after{transform:scaleX(1)}
.btn-link:hover{color:var(--orange-2)}
.btn-link:hover::after{background:var(--orange-2)}

/* ---------- Hero（分类页压缩通栏） ---------- */
.hero-cat{
  position:relative;
  min-height:420px;
  display:flex;align-items:center;
  padding:150px 0 72px;
  background-image:linear-gradient(100deg,rgba(16,49,42,.86) 0%,rgba(20,69,59,.74) 52%,rgba(20,69,59,.56) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  color:#EDEAE3;
  overflow:hidden;
}
.hero-cat::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:22px 22px;opacity:.5;pointer-events:none;
}
.hero-cat .container{position:relative;z-index:2}
.crumb{display:flex;align-items:center;gap:10px;font-size:.875rem;color:rgba(237,234,227,.72);margin-bottom:22px}
.crumb a{color:rgba(237,234,227,.72)}
.crumb a:hover{color:#EDEAE3;text-decoration:underline}
.crumb span.sep{opacity:.55}
.crumb strong{color:#EDEAE3;font-weight:600}
.hero-cat h1{
  font-family:var(--serif);font-weight:700;
  font-size:clamp(1.9rem,3.2vw,2.9rem);line-height:1.2;letter-spacing:-.01em;
  color:#F7F4ED;max-width:860px;
}
.hero-cat .hero-sub{margin-top:18px;font-size:1.0625rem;color:rgba(237,234,227,.84);max-width:620px}
.hero-cat .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-meta{display:flex;flex-wrap:wrap;gap:26px;margin-top:34px;padding-top:22px;border-top:1px solid rgba(237,234,227,.22);font-size:.875rem;color:rgba(237,234,227,.78)}
.hero-meta span{display:inline-flex;align-items:center;gap:8px}
.hero-meta b{font-family:var(--sans);font-weight:600;color:#F0A97C;letter-spacing:.02em}

/* ---------- 介绍块（左文右图） ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.split__text p{color:var(--ink-2);margin-top:18px}
.split__text p:first-of-type{margin-top:26px}
.split__media{position:relative}
.split__media img{width:100%;aspect-ratio:16/11;object-fit:cover;box-shadow:var(--sh-1)}
.split__badge{
  position:absolute;right:-16px;bottom:-20px;
  background:var(--white);border:1px solid var(--line-green);border-radius:var(--r-card);
  padding:16px 20px;box-shadow:var(--sh-2);max-width:230px;
}
.split__badge b{display:block;font-family:var(--sans);font-weight:700;font-size:1.5rem;color:var(--orange);line-height:1.2;letter-spacing:.02em}
.split__badge span{display:block;font-size:.875rem;color:var(--ink-2);margin-top:4px}
.quick-jump{display:flex;flex-wrap:wrap;gap:24px;margin-top:30px;padding-top:24px;border-top:1px solid var(--line)}
.vertical-tag{
  position:absolute;right:6px;top:0;
  writing-mode:vertical-rl;letter-spacing:.42em;
  font-family:var(--serif);font-size:.8125rem;color:var(--green-2);
  opacity:.72;user-select:none;
}

/* ---------- 错位卡片网格 ---------- */
.stagger-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.tile{
  background:var(--white);
  border:1px solid var(--line-green);
  border-radius:var(--r-card);
  overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .3s cubic-bezier(.22,.61,.36,1),box-shadow .3s ease,border-color .3s ease;
}
.tile:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(20,69,59,.24)}
.tile__media{overflow:hidden;background:var(--alt)}
.tile__media img{width:100%;aspect-ratio:16/10;object-fit:cover;border:0;border-radius:0;transition:transform .5s cubic-bezier(.22,.61,.36,1)}
.tile:hover .tile__media img{transform:scale(1.04)}
.tile__body{padding:26px 26px 30px;display:flex;flex-direction:column;gap:12px;flex:1}
.tile__body h3{color:var(--ink)}
.tile__body p{color:var(--ink-2);font-size:.9375rem;line-height:1.8}
.tile__foot{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);font-size:.875rem;color:var(--ink-3);display:flex;align-items:center;justify-content:space-between;gap:12px}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--green-pale);color:var(--green);font-size:.8125rem;font-weight:600;letter-spacing:.02em;
}
.badge--orange{background:rgba(192,91,46,.12);color:var(--orange-2)}

/* ---------- 时间线步骤条 ---------- */
.steps{position:relative;display:grid;grid-template-columns:repeat(5,1fr);gap:26px}
.steps::before{content:"";position:absolute;top:26px;left:12px;right:12px;height:1px;background:var(--line)}
.step{position:relative;padding-top:76px}
.step__num{
  position:absolute;top:0;left:0;width:52px;height:52px;border-radius:50%;
  display:grid;place-items:center;background:var(--paper);
  border:1px solid var(--line-green);
  font-family:var(--sans);font-weight:600;font-size:.9375rem;color:var(--green);letter-spacing:.02em;
}
.step:nth-child(3) .step__num{color:var(--orange);border-color:rgba(192,91,46,.35)}
.step h3{margin-bottom:10px}
.step p{color:var(--ink-2);font-size:.9375rem}

/* ---------- 要点清单 ---------- */
.checklist{display:grid;grid-template-columns:1fr 1fr;gap:0 56px;border-top:1px solid var(--line)}
.checklist li{
  display:flex;gap:18px;
  padding:24px 0;border-bottom:1px solid var(--line);
}
.checklist .num{
  flex:0 0 auto;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line-green);background:var(--white);
  display:grid;place-items:center;font-weight:600;font-size:.875rem;color:var(--green);letter-spacing:.02em;
}
.checklist h3{font-size:1.0625rem;margin-bottom:6px}
.checklist p{color:var(--ink-2);font-size:.9375rem}

/* ---------- 数据带 ---------- */
.stat-band{background:var(--dark);color:#EDEAE3;position:relative;overflow:hidden}
.stat-band .sec-title h2{color:#F7F4ED}
.stat-band .sec-lead{color:rgba(237,234,227,.78)}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;margin-top:8px}
.stat{
  border:1px solid rgba(237,234,227,.16);
  border-radius:var(--r-card);
  padding:30px 26px;
  background:rgba(255,255,255,.03);
}
.stat b{display:block;font-family:var(--sans);font-weight:700;font-size:2.4rem;line-height:1.1;letter-spacing:.02em;color:#E89B6C}
.stat span{display:block;margin-top:10px;font-size:.9375rem;color:rgba(237,234,227,.8)}
.stat-band .band-note{margin-top:30px;font-size:.875rem;color:rgba(237,234,227,.62);max-width:760px}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);max-width:900px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;min-height:64px;display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:18px 4px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-family:var(--sans);font-size:1.0625rem;font-weight:600;color:var(--ink);
  transition:color .22s ease;
}
.faq-q:hover{color:var(--green-2)}
.faq-icon{position:relative;flex:0 0 auto;width:18px;height:18px}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--green);border-radius:2px;
  transition:transform .3s cubic-bezier(.22,.61,.36,1),opacity .3s ease;
}
.faq-icon::before{left:0;top:8px;width:18px;height:1px}
.faq-icon::after{left:8px;top:0;width:1px;height:18px}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .38s cubic-bezier(.22,.61,.36,1)}
.faq-a__inner{max-width:720px;padding:0 4px 26px;color:var(--ink-2);font-size.9375rem}
.faq-a__inner{font-size:.9375rem}

/* ---------- CTA ---------- */
.cta-band{background:var(--dark);color:#EDEAE3}
.cta-inner{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.cta-inner h2{color:#F7F4ED;max-width:520px}
.cta-inner h2::after{content:"";display:block;width:40px;height:3px;background:var(--orange);margin-top:12px}
.cta-inner p{color:rgba(237,234,227,.78);margin-top:18px;max-width:520px}
.cta-actions{display:flex;flex-wrap:wrap;gap:16px;justify-content:flex-end}
.cta-points{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:26px;font-size:.875rem;color:rgba(237,234,227,.72)}
.cta-points span{display:inline-flex;align-items:center;gap:8px}
.cta-points span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--orange)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:#EDEAE3;padding:88px 0 34px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:44px}
.footer-col h3{font-family:var(--sans);font-size:.9375rem;font-weight:600;letter-spacing:.06em;color:#F7F4ED;margin-bottom:18px}
.footer-col ul li{margin-bottom:12px}
.footer-col a,.footer-col span{font-size:.9375rem;color:rgba(237,234,227,.76);transition:color .22s ease}
.footer-col a:hover{color:#E89B6C;text-decoration:underline}
.footer-brand .brand__text{color:#F7F4ED}
.footer-brand .brand__mark{background:rgba(237,234,227,.12);color:#F7F4ED}
.footer-brand p{margin-top:20px;font-size:.9375rem;color:rgba(237,234,227,.7);max-width:360px}
.footer-bottom{
  margin-top:56px;padding-top:26px;border-top:1px solid rgba(237,234,227,.16);
  display:flex;flex-wrap:wrap;gap:12px 32px;justify-content:space-between;
  font-size:.875rem;color:rgba(237,234,227,.62);
}

/* ---------- 动效 ---------- */
.js .reveal{opacity:0;transform:translateY(16px);transition:opacity .48s cubic-bezier(.22,.61,.36,1),transform .48s cubic-bezier(.22,.61,.36,1)}
.js .reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .js .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  *{transition:none !important;animation:none !important}
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{padding:0 24px}
  .section{padding:88px 0}
  .split{gap:44px}
}
@media (max-width:1023px){
  .nav-links{display:none}
  .nav-toggle{display:flex}
  .site-nav.is-open{border-radius:24px}
  .site-nav.is-open .nav-links{
    display:flex;flex-direction:column;align-items:stretch;gap:0;
    position:absolute;top:calc(100% + 12px);left:0;right:0;
    background:rgba(252,251,248,.98);
    -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
    border:1px solid var(--line-green);border-radius:20px;
    padding:10px;box-shadow:var(--sh-2);
  }
  .site-nav.is-open .nav-links a{
    height:52px;display:flex;align-items:center;padding:0 16px;border-radius:12px;font-size:1rem;
  }
  .site-nav.is-open .nav-links a::after{display:none}
  .site-nav.is-open .nav-links a:hover,.site-nav.is-open .nav-links a.is-active{background:var(--green-pale)}
  .site-nav.is-open .nav-right{width:100%}
  .hero-cat{padding:140px 0 64px;min-height:380px}
  .split{grid-template-columns:1fr;gap:36px}
  .split__badge{right:16px;bottom:-18px}
  .stagger-grid{grid-template-columns:repeat(2,1fr)}
  .stagger-grid > .tile:nth-child(3n+2){margin-top:0}
  .steps{grid-template-columns:repeat(2,1fr);gap:30px}
  .steps::before{display:none}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .checklist{grid-template-columns:1fr;gap:0}
  .cta-inner{grid-template-columns:1fr;gap:32px}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .vertical-tag{display:none}
}
@media (max-width:767px){
  body{font-size:1rem;line-height:1.8}
  .container{padding:0 18px}
  .section,.section--tight{padding:64px 0}
  .site-nav{width:calc(100% - 24px);padding:0 10px 0 16px;top:14px}
  .site-nav.is-scrolled{top:10px}
  .brand__text{font-size:1rem}
  .nav-right .btn{display:none}
  .hero-cat{padding:124px 0 56px;min-height:340px}
  .hero-cat .hero-actions .btn{width:100%}
  .hero-meta{gap:14px 22px}
  .sec-head{margin-bottom:32px}
  .stagger-grid{grid-template-columns:1fr;gap:22px}
  .steps{grid-template-columns:1fr;gap:26px}
  .step{padding-top:0;padding-left:68px;min-height:52px}
  .step__num{top:0;left:0}
  .stat-grid{grid-template-columns:1fr}
  .tile__body{padding:22px}
  .faq-q{font-size:1rem}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;gap:10px}
}
@media (max-width:479px){
  .hero-cat h1{font-size:1.7rem}
  .brand__text{font-size:.9375rem}
  .brand__mark{width:32px;height:32px;font-size:.875rem}
  .split__badge{position:static;margin-top:18px;max-width:none}
  .stat b{font-size:2rem}
}