/* roulang page: index */
:root{
  --brand:#2E5A52;
  --brand-deep:#22453F;
  --brand-soft:#E8EFEB;
  --accent:#D9793F;
  --accent-soft:#F7E7DC;
  --paper:#F7F4EE;
  --paper-2:#FFFFFF;
  --ink:#171A18;
  --text:#2B2F2C;
  --muted:#6B706C;
  --line:#DED9CF;
  --success:#3F7A63;
  --danger:#B14A3A;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-badge:999px;
  --shadow-sm:0 8px 24px rgba(23,26,24,.05);
  --shadow-lg:0 16px 40px rgba(23,26,24,.10);
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --bs-primary:#2E5A52;
  --bs-body-bg:#F7F4EE;
  --bs-body-color:#2B2F2C;
  --bs-border-radius:16px;
  --bs-border-color:#DED9CF;
  --bs-font-sans-serif:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --bs-link-color:#2E5A52;
  --bs-link-hover-color:#D9793F;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{
  font-family:var(--font-serif);
  color:var(--ink);
  font-weight:700;
  line-height:1.28;
  letter-spacing:.01em;
  margin:0 0 .6em;
}
h1{font-size:clamp(2rem,5vw,4rem);line-height:1.16;}
h2{font-size:clamp(1.5rem,3vw,2.25rem);}
h3{font-size:1.25rem;}
p{margin:0 0 1.1em;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--accent);}
img{max-width:100%;height:auto;display:block;}
ul,ol{padding-left:1.2em;}
button,input,textarea,select{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
@media (min-width:1400px){ .container{max-width:1320px;} }

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(247,244,238,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.brand-bar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:74px;
  padding-top:10px;
  padding-bottom:10px;
}
.brand{
  display:flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
}
.brand__mark{
  width:42px;
  height:42px;
  border-radius:12px;
  background:linear-gradient(150deg,var(--brand),var(--brand-deep));
  display:grid;
  place-items:center;
  color:#F3EFE7;
  font-family:var(--font-serif);
  font-size:20px;
  font-weight:700;
  box-shadow:var(--shadow-sm);
}
.brand__text{display:flex;flex-direction:column;line-height:1.2;}
.brand__name{
  font-family:var(--font-serif);
  font-size:1.16rem;
  font-weight:700;
  color:var(--ink);
  letter-spacing:.02em;
}
.brand__name:hover{color:var(--brand);}
.brand__slogan{font-size:.75rem;color:var(--muted);letter-spacing:.14em;}
.brand-tools{
  display:flex;
  align-items:center;
  gap:14px;
  flex:1 1 auto;
  justify-content:flex-end;
}
.nav-search{
  position:relative;
  max-width:260px;
  width:100%;
}
.nav-search input{
  width:100%;
  height:44px;
  border-radius:var(--radius-btn);
  border:1px solid var(--line);
  background:#fff;
  padding:0 42px 0 16px;
  font-size:.92rem;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search input::placeholder{color:#9AA09B;}
.nav-search input:focus{
  outline:none;
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(46,90,82,.14);
}
.nav-search button{
  position:absolute;
  right:6px;
  top:50%;
  transform:translateY(-50%);
  width:34px;height:34px;
  border:0;border-radius:9px;
  background:var(--brand-soft);
  color:var(--brand);
  display:grid;place-items:center;
  transition:background .2s ease,color .2s ease;
}
.nav-search button:hover{background:var(--brand);color:#fff;}
.nav-phone{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:.92rem;
  color:var(--brand);
  font-weight:500;
  white-space:nowrap;
}
.nav-phone i{color:var(--accent);}

.btn{
  border-radius:var(--radius-btn);
  font-weight:500;
  letter-spacing:.02em;
  padding:.68rem 1.4rem;
  border:1px solid transparent;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-brand{
  background:var(--brand);
  color:#F8F5EF;
  box-shadow:var(--shadow-sm);
}
.btn-brand:hover{background:var(--brand-deep);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-lg);}
.btn-accent{
  background:var(--accent);
  color:#fff;
  box-shadow:0 8px 22px rgba(217,121,63,.24);
}
.btn-accent:hover{background:#C46A34;color:#fff;transform:translateY(-2px);box-shadow:0 16px 36px rgba(217,121,63,.30);}
.btn-ghost{
  background:#fff;
  border-color:var(--line);
  color:var(--ink);
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow-sm);}
.btn .bi{transition:transform .2s ease;}
.btn:hover .bi-arrow-right{transform:translateX(4px);}

/* 频道行 */
.channel-nav{
  border-top:1px solid var(--line);
  background:rgba(255,255,255,.55);
}
.channel-list{
  display:flex;
  align-items:center;
  gap:6px;
  list-style:none;
  margin:0;
  padding:0;
  overflow-x:auto;
  scroll-snap-type:x proximity;
  -ms-overflow-style:none;
  scrollbar-width:none;
}
.channel-list::-webkit-scrollbar{display:none;}
.channel-link{
  display:block;
  position:relative;
  white-space:nowrap;
  scroll-snap-align:start;
  padding:14px 16px 13px;
  font-size:.95rem;
  color:var(--text);
  font-weight:500;
  border-radius:8px 8px 0 0;
  transition:background .2s ease,color .2s ease;
}
.channel-link:hover{background:var(--brand-soft);color:var(--brand);}
.channel-link.active{color:var(--brand);}
.channel-link.active::after{
  content:"";
  position:absolute;
  left:16px;right:16px;bottom:0;
  height:2px;
  background:var(--brand);
  border-radius:2px;
}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  background:#fff;
  color:var(--ink);
  place-items:center;
  font-size:1.2rem;
}

/* offcanvas */
.offcanvas{background:var(--paper);}
.offcanvas-header{border-bottom:1px solid var(--line);}
.offcanvas-title{font-family:var(--font-serif);font-size:1.15rem;}
.drawer-list{list-style:none;margin:0;padding:0;}
.drawer-list li{border-bottom:1px solid var(--line);}
.drawer-list a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:52px;
  padding:10px 4px;
  color:var(--text);
  font-size:1rem;
}
.drawer-list a.active{color:var(--brand);font-weight:700;}

/* ============ Hero ============ */
.hero{
  position:relative;
  overflow:hidden;
  padding:76px 0 84px;
  background:
    linear-gradient(180deg,rgba(247,244,238,.95) 0%,rgba(247,244,238,.99) 62%,rgba(247,244,238,1) 100%),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
}
.hero::before{
  content:"";
  position:absolute;
  inset:auto -6% -18% auto;
  width:520px;height:520px;
  background:radial-gradient(circle at center,rgba(46,90,82,.07),transparent 68%);
  pointer-events:none;
}
.hero__eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:.82rem;
  letter-spacing:.16em;
  color:var(--brand);
  background:var(--brand-soft);
  border-radius:var(--radius-badge);
  padding:7px 16px;
  margin-bottom:22px;
  font-weight:500;
}
.hero__eyebrow span.dot{
  width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block;
}
.hero__title{
  color:var(--ink);
  margin-bottom:22px;
}
.hero__title .line{display:block;}
.hero__title .hl{
  color:var(--brand);
  position:relative;
  white-space:nowrap;
}
.hero__title .hl::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:.06em;
  height:.22em;
  background:rgba(217,121,63,.18);
  border-radius:4px;
  z-index:-1;
}
.hero__sub{
  font-size:1.06rem;
  color:var(--muted);
  max-width:600px;
  margin-bottom:30px;
}
.hero__actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-bottom:34px;
}
.hero__badges{
  display:flex;
  flex-wrap:wrap;
  gap:12px 34px;
  padding-top:26px;
  border-top:1px solid var(--line);
}
.hero__badge{display:flex;flex-direction:column;gap:2px;}
.hero__badge b{
  font-family:var(--font-serif);
  font-size:1.7rem;
  color:var(--brand);
  line-height:1.1;
}
.hero__badge small{font-size:.8rem;color:var(--muted);letter-spacing:.06em;}
.hero__media{
  position:relative;
  border-radius:22px;
  overflow:hidden;
  box-shadow:var(--shadow-lg);
  border:1px solid var(--line);
  background:#fff;
  aspect-ratio:4/3;
}
.hero__media img{width:100%;height:100%;object-fit:cover;}
.hero__media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(23,26,24,0) 55%,rgba(23,26,24,.42) 100%);
}
.hero__media-cap{
  position:absolute;
  left:20px;right:20px;bottom:18px;
  z-index:2;
  color:#F6F2EA;
  font-size:.86rem;
  letter-spacing:.04em;
}
.fade-up{opacity:0;transform:translateY(18px);animation:fadeUp .8s cubic-bezier(.22,.68,.32,1) forwards;}
.fade-up.d1{animation-delay:.08s;}
.fade-up.d2{animation-delay:.18s;}
.fade-up.d3{animation-delay:.28s;}
.fade-up.d4{animation-delay:.38s;}
@keyframes fadeUp{to{opacity:1;transform:translateY(0);}}

/* ============ 通用板块 ============ */
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section--paper2{background:var(--paper-2);}
.section--ink{background:var(--ink);color:#E8E4DA;}
.section--ink h2,.section--ink h3{color:#F6F2EA;}
.section--ink p{color:#B9B5AB;}
.section-head{max-width:760px;margin-bottom:52px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-label{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:.78rem;
  letter-spacing:.2em;
  color:var(--accent);
  font-weight:700;
  margin-bottom:14px;
}
.section-label::before{
  content:"";
  width:26px;height:2px;background:var(--accent);display:inline-block;border-radius:2px;
}
.section-head p{color:var(--muted);margin-bottom:0;font-size:1.02rem;}

/* 信任条 */
.trust-bar{
  background:var(--paper-2);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:34px 0;
}
.trust-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
}
.trust-item{display:flex;gap:14px;align-items:flex-start;}
.trust-item i{
  font-size:1.35rem;
  color:var(--brand);
  line-height:1;
  margin-top:4px;
}
.trust-item h3{font-size:1rem;font-family:var(--font-sans);font-weight:700;margin-bottom:4px;}
.trust-item p{font-size:.86rem;color:var(--muted);margin:0;line-height:1.6;}

/* 能力卡 */
.cap-grid{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:28px;
}
.cap-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:34px;
  box-shadow:var(--shadow-sm);
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
  height:100%;
}
.cap-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--brand);}
.cap-card h3{margin-bottom:12px;}
.cap-card p{color:var(--muted);font-size:.95rem;margin-bottom:18px;}
.cap-list{list-style:none;padding:0;margin:0;}
.cap-list li{
  display:flex;
  gap:10px;
  align-items:flex-start;
  font-size:.94rem;
  padding:9px 0;
  border-bottom:1px dashed var(--line);
}
.cap-list li:last-child{border-bottom:0;}
.cap-list i{color:var(--success);margin-top:6px;font-size:.85rem;}
.cap-num{
  font-family:var(--font-serif);
  font-size:2.4rem;
  color:var(--accent);
  line-height:1;
  margin-bottom:14px;
}

/* 三步上手 */
.steps{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:0;
  position:relative;
  margin-top:10px;
}
.steps::before{
  content:"";
  position:absolute;
  top:34px;left:8%;right:8%;
  height:1px;
  background:repeating-linear-gradient(90deg,var(--line) 0 8px,transparent 8px 16px);
}
.step{
  position:relative;
  padding:0 26px;
  background:transparent;
}
.step__num{
  width:68px;height:68px;
  border-radius:50%;
  background:#fff;
  border:1px solid var(--line);
  display:grid;place-items:center;
  font-family:var(--font-serif);
  font-size:1.5rem;
  color:var(--brand);
  margin-bottom:22px;
  position:relative;
  z-index:2;
  transition:background .28s ease,color .28s ease,border-color .28s ease;
}
.step:hover .step__num{background:var(--brand);color:#fff;border-color:var(--brand);}
.step h3{font-size:1.12rem;margin-bottom:10px;}
.step p{font-size:.94rem;color:var(--muted);margin-bottom:0;}

/* 案例 */
.case-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:30px;
}
.case-row + .case-row{margin-top:34px;}
.case{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
  display:flex;
  flex-direction:column;
}
.case:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--brand);}
.case__media{overflow:hidden;aspect-ratio:16/9;background:var(--brand-soft);}
.case__media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.case:hover .case__media img{transform:scale(1.03);}
.case__body{padding:26px 28px 28px;}
.case__tag{
  display:inline-block;
  font-size:.74rem;
  letter-spacing:.12em;
  color:var(--brand);
  background:var(--brand-soft);
  border-radius:var(--radius-badge);
  padding:4px 12px;
  margin-bottom:14px;
}
.case__body h3{font-size:1.16rem;margin-bottom:10px;}
.case__body p{font-size:.94rem;color:var(--muted);margin-bottom:18px;}
.case__metrics{
  display:flex;
  gap:28px;
  padding-top:18px;
  border-top:1px solid var(--line);
}
.case__metrics div strong{
  display:block;
  font-family:var(--font-serif);
  font-size:1.55rem;
  color:var(--accent);
  line-height:1.1;
}
.case__metrics div small{font-size:.78rem;color:var(--muted);}
.case--offset{margin-top:34px;}

/* 最新信息 */
.post-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.post-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  box-shadow:var(--shadow-sm);
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
  height:100%;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--brand);}
.post-card__media{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--brand-soft);}
.post-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.post-card:hover .post-card__media img{transform:scale(1.03);}
.post-card__body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1 1 auto;}
.post-card__meta{
  display:flex;
  align-items:center;
  gap:12px;
  font-size:.78rem;
  color:var(--muted);
  margin-bottom:12px;
}
.post-card__meta .tag{
  background:var(--accent-soft);
  color:#A8562A;
  border-radius:var(--radius-badge);
  padding:3px 11px;
  font-size:.74rem;
  letter-spacing:.04em;
}
.post-card__title{font-size:1.06rem;margin-bottom:10px;}
.post-card__title a{color:var(--ink);}
.post-card__title a:hover{color:var(--brand);}
.post-card__excerpt{font-size:.9rem;color:var(--muted);margin-bottom:18px;flex:1 1 auto;}
.post-card__more{
  font-size:.86rem;
  color:var(--brand);
  font-weight:500;
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.post-card__more .bi{transition:transform .2s ease;}
.post-card:hover .post-card__more .bi{transform:translateX(4px);}
.post-card--feature{
  grid-column:1/-1;
  flex-direction:row;
}
.post-card--feature .post-card__media{flex:0 0 46%;aspect-ratio:auto;min-height:280px;}
.post-card--feature .post-card__body{padding:34px 36px;}
.post-card--feature .post-card__title{font-size:1.5rem;}
.post-card--feature .post-card__excerpt{font-size:.96rem;}
.empty-state{
  border:1px dashed var(--line);
  border-radius:var(--radius-card);
  padding:56px 24px;
  text-align:center;
  color:var(--muted);
  background:#fff;
  font-size:.96rem;
}

/* FAQ */
.faq-wrap{max-width:880px;margin:0 auto;}
.accordion-item{
  border:0;
  border-top:1px solid var(--line);
  background:transparent;
}
.accordion-item:last-child{border-bottom:1px solid var(--line);}
.accordion-button{
  background:transparent;
  border-left:3px solid transparent;
  box-shadow:none;
  color:var(--ink);
  font-family:var(--font-serif);
  font-size:1.06rem;
  font-weight:700;
  padding:22px 52px 22px 18px;
  transition:background .24s ease,border-color .24s ease,color .24s ease;
}
.accordion-button:not(.collapsed){
  background:#fff;
  color:var(--ink);
  border-left-color:var(--accent);
  box-shadow:none;
}
.accordion-button:focus{box-shadow:0 0 0 3px rgba(46,90,82,.14);z-index:2;}
.accordion-button::after{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%232E5A52' stroke-width='1.7' stroke-linecap='round'%3E%3Cpath d='M8 2.5v11M2.5 8h11'/%3E%3C/svg%3E");
  width:16px;height:16px;background-size:16px;
}
.accordion-button:not(.collapsed)::after{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%23D9793F' stroke-width='1.7' stroke-linecap='round'%3E%3Cpath d='M2.5 8h11'/%3E%3C/svg%3E");
}
.accordion-body{
  padding:0 46px 26px 18px;
  color:var(--muted);
  font-size:.95rem;
  line-height:1.85;
}

/* CTA + 表单 */
.cta-band{
  background:var(--ink);
  color:#E8E4DA;
  border-radius:0;
  position:relative;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:-40% -10% auto auto;
  width:620px;height:620px;
  background:radial-gradient(circle at center,rgba(217,121,63,.16),transparent 62%);
  pointer-events:none;
}
.cta-band h2{color:#F7F3EB;}
.cta-band p{color:#B7B3A9;}
.cta-points{list-style:none;padding:0;margin:0 0 26px;}
.cta-points li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:.94rem;color:#C9C5BA;padding:7px 0;
}
.cta-points i{color:var(--accent);margin-top:6px;font-size:.85rem;}
.cta-form{
  background:#fff;
  border-radius:20px;
  padding:32px;
  box-shadow:0 24px 60px rgba(0,0,0,.28);
}
.cta-form h3{font-size:1.16rem;margin-bottom:6px;}
.cta-form .form-hint{font-size:.84rem;color:var(--muted);margin-bottom:22px;}
.form-label{font-size:.86rem;font-weight:500;color:var(--ink);margin-bottom:8px;}
.form-control,.form-select{
  min-height:48px;
  border-radius:var(--radius-btn);
  border:1px solid var(--line);
  background:#FDFCFA;
  font-size:.94rem;
  padding:10px 14px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
textarea.form-control{min-height:110px;resize:vertical;}
.form-control:focus,.form-select:focus{
  background:#fff;
  border-color:var(--brand);
  box-shadow:0 0 0 2px rgba(46,90,82,.18);
}
.form-control.is-invalid{border-color:var(--danger);}
.form-check-input{width:18px;height:18px;margin-top:4px;border-color:var(--line);}
.form-check-input:checked{background-color:var(--brand);border-color:var(--brand);}
.form-check-input:focus{box-shadow:0 0 0 3px rgba(46,90,82,.16);}
.form-check-label{font-size:.82rem;color:var(--muted);}
.form-note{font-size:.78rem;color:var(--muted);margin-top:12px;margin-bottom:0;}
.form-success{
  display:none;
  margin-top:16px;
  border:1px solid rgba(63,122,99,.35);
  background:rgba(63,122,99,.08);
  color:var(--success);
  border-radius:var(--radius-btn);
  padding:12px 16px;
  font-size:.9rem;
}
.form-success.show{display:block;}
.contact-strip{
  display:flex;
  flex-wrap:wrap;
  gap:22px 40px;
  margin-top:32px;
  padding-top:26px;
  border-top:1px solid rgba(255,255,255,.14);
}
.contact-strip div{display:flex;gap:10px;align-items:center;font-size:.9rem;color:#C9C5BA;}
.contact-strip i{color:var(--accent);}
.qr-box{
  width:104px;height:104px;
  border-radius:12px;
  background:#262B28;
  border:1px solid rgba(255,255,255,.14);
  display:grid;
  place-items:center;
  color:#8D8A81;
  font-size:.72rem;
  text-align:center;
  line-height:1.5;
}

/* 页脚 */
.site-footer{
  background:var(--ink);
  color:#B9B5AB;
  padding:72px 0 0;
  font-size:.9rem;
}
.site-footer h3{
  color:#F5F1E9;
  font-size:1rem;
  font-family:var(--font-sans);
  font-weight:700;
  margin-bottom:18px;
  letter-spacing:.02em;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:52px;
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-brand .brand__mark{background:linear-gradient(150deg,#3C6E64,#22453F);}
.footer-brand strong{
  color:#F5F1E9;
  font-family:var(--font-serif);
  font-size:1.08rem;
}
.site-footer p{color:#8F8B82;line-height:1.85;font-size:.86rem;}
.footer-links{list-style:none;padding:0;margin:0;}
.footer-links li{margin-bottom:11px;}
.footer-links a{color:#B9B5AB;font-size:.88rem;}
.footer-links a:hover{color:var(--accent);}
.footer-contact li{
  display:flex;
  gap:10px;
  align-items:flex-start;
  margin-bottom:12px;
  color:#B9B5AB;
  font-size:.88rem;
}
.footer-contact i{color:var(--accent);margin-top:4px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.10);
  padding:22px 0 26px;
  display:flex;
  flex-wrap:wrap;
  gap:10px 26px;
  align-items:center;
  justify-content:space-between;
  font-size:.8rem;
  color:#7E7A72;
}
.footer-bottom a{color:#9A968D;}
.footer-bottom a:hover{color:var(--accent);}

/* 返回顶部 */
.to-top{
  position:fixed;
  right:22px;bottom:26px;
  width:46px;height:46px;
  border-radius:14px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--brand);
  display:grid;place-items:center;
  box-shadow:var(--shadow-sm);
  opacity:0;visibility:hidden;
  transform:translateY(10px);
  transition:all .28s ease;
  z-index:1040;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--brand);color:#fff;border-color:var(--brand);}

/* 动效 */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s cubic-bezier(.22,.68,.32,1),transform .7s cubic-bezier(.22,.68,.32,1);}
.reveal.in{opacity:1;transform:none;}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
  .reveal{opacity:1;transform:none;}
  .fade-up{opacity:1;transform:none;}
}

/* 响应式 */
@media (max-width:1199.98px){
  .container{padding-left:20px;padding-right:20px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
  .footer-grid .footer-col-qr{grid-column:1/-1;}
}
@media (max-width:991.98px){
  body{font-size:16px;}
  .section{padding:72px 0;}
  .section--tight{padding:56px 0;}
  .nav-search{display:none;}
  .nav-toggle{display:grid;}
  .brand-tools .nav-phone{display:none;}
  .cap-grid{grid-template-columns:1fr;}
  .case-row{grid-template-columns:1fr;}
  .case--offset{margin-top:0;}
  .trust-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .post-list{grid-template-columns:repeat(2,minmax(0,1fr));}
  .post-card--feature{flex-direction:column;}
  .post-card--feature .post-card__media{flex:none;aspect-ratio:16/9;min-height:0;}
  .post-card--feature .post-card__body{padding:26px 26px 28px;}
  .post-card--feature .post-card__title{font-size:1.24rem;}
  .steps{grid-template-columns:1fr;gap:26px;}
  .steps::before{display:none;}
  .step{padding:0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .hero{padding:56px 0 66px;}
  .cta-form{padding:26px;}
}
@media (max-width:767.98px){
  h1{font-size:clamp(1.85rem,8vw,2.5rem);}
  .section{padding:48px 0;}
  .section--tight{padding:44px 0;}
  .section-head{margin-bottom:34px;}
  .hero__badges{gap:18px 26px;}
  .hero__badge b{font-size:1.4rem;}
  .post-list{grid-template-columns:1fr;}
  .trust-grid{grid-template-columns:1fr;gap:18px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .accordion-button{font-size:1rem;padding:18px 46px 18px 14px;}
  .accordion-body{padding:0 18px 22px 14px;}
  .cta-form{padding:22px;}
  .site-footer{padding-top:52px;}
}
@media (max-width:575.98px){
  .brand__slogan{display:none;}
  .brand__name{font-size:1.02rem;}
  .btn{padding:.62rem 1.1rem;font-size:.92rem;}
  .hero__actions .btn{width:100%;text-align:center;display:inline-flex;justify-content:center;}
  .case__metrics{gap:18px;}
  .contact-strip{gap:16px;}
}

/* roulang page: article */
:root{
  --primary:#2E5A52;
  --primary-dark:#22443E;
  --primary-soft:rgba(46,90,82,.08);
  --accent:#D9793F;
  --accent-dark:#C06A34;
  --paper:#F7F4EE;
  --ink:#171A18;
  --text:#2B2F2C;
  --muted:#6B706C;
  --line:#DED9CF;
  --ok:#3F7A63;
  --err:#B14A3A;
  --card:#FFFFFF;
  --radius-lg:16px;
  --radius-sm:10px;
  --shadow-1:0 8px 24px rgba(23,26,24,.05);
  --shadow-2:0 16px 40px rgba(23,26,24,.10);
  --bs-primary:#2E5A52;
  --bs-primary-rgb:46,90,82;
  --bs-body-bg:#F7F4EE;
  --bs-body-color:#2B2F2C;
  --bs-border-color:#DED9CF;
  --bs-border-radius:10px;
  --bs-link-color:#2E5A52;
  --bs-link-hover-color:#D9793F;
  --bs-font-sans-serif:"Inter","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --bs-body-font-family:"Inter","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--bs-body-font-family);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,border-color .2s ease}
a:hover{color:var(--accent)}
h1,h2,h3,h4{font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;color:var(--ink);line-height:1.25;margin:0;font-weight:700}
p{margin:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.container{width:100%;max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto}
@media(min-width:1400px){.container{max-width:1320px}}

/* ---------- 阅读进度条 ---------- */
.read-progress{position:fixed;top:0;left:0;height:3px;width:0;background:linear-gradient(90deg,var(--primary),var(--accent));z-index:1080;transition:width .12s linear}

/* ---------- 头部 ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:rgba(247,244,238,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.brand-row{padding:14px 0}
.brand-row__inner{display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink)}
.brand__mark{
  width:42px;height:42px;border-radius:13px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--primary) 0%,#3E7268 55%,var(--accent) 130%);
  color:#fff;font-family:"Inter",sans-serif;font-weight:700;font-size:19px;letter-spacing:.02em;
  box-shadow:0 6px 16px rgba(46,90,82,.24);
}
.brand__text{display:flex;flex-direction:column;line-height:1.2}
.brand__text strong{font-family:"Noto Serif SC",serif;font-size:18px;font-weight:700;color:var(--ink);letter-spacing:.01em}
.brand__text small{font-size:11.5px;color:var(--muted);letter-spacing:.14em;text-transform:uppercase}
.header-tools{display:flex;align-items:center;gap:14px}
.header-search{position:relative;display:flex;align-items:center}
.header-search i{position:absolute;left:14px;color:var(--muted);font-size:14px;pointer-events:none}
.header-search input{
  width:230px;height:44px;border:1px solid var(--line);border-radius:999px;background:#fff;
  padding:0 16px 0 38px;font-size:14px;color:var(--text);transition:border-color .2s,box-shadow .2s;
}
.header-search input::placeholder{color:#9A9E99}
.header-search input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(46,90,82,.14)}
.header-phone{display:inline-flex;align-items:center;gap:7px;height:44px;padding:0 16px;border:1px solid var(--line);border-radius:999px;font-size:14px;color:var(--ink);background:#fff}
.header-phone:hover{border-color:var(--primary);color:var(--primary)}
.btn-cta{
  display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 22px;border:0;border-radius:var(--radius-sm);
  background:var(--accent);color:#fff;font-size:15px;font-weight:500;cursor:pointer;white-space:nowrap;
  box-shadow:0 8px 20px rgba(217,121,63,.22);transition:background .2s,transform .2s,box-shadow .2s;
}
.btn-cta:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px);box-shadow:0 14px 28px rgba(217,121,63,.28)}
.btn-cta i{transition:transform .2s}
.btn-cta:hover i{transform:translateX(4px)}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;height:46px;padding:0 22px;border:1px solid var(--primary);
  border-radius:var(--radius-sm);background:transparent;color:var(--primary);font-size:15px;font-weight:500;transition:.2s;
}
.btn-ghost:hover{background:var(--primary);color:#fff;transform:translateY(-2px)}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff;color:var(--ink);font-size:20px;place-items:center}

/* ---------- 频道导航 ---------- */
.channel-nav{border-top:1px solid var(--line);background:rgba(255,255,255,.55)}
.channel-list{display:flex;align-items:center;gap:34px;list-style:none;margin:0;padding:0;overflow-x:auto;scrollbar-width:none}
.channel-list::-webkit-scrollbar{display:none}
.channel-link{
  display:block;position:relative;padding:14px 2px 13px;font-size:15px;color:var(--muted);white-space:nowrap;
  border-bottom:2px solid transparent;transition:color .2s,border-color .2s;
}
.channel-link:hover{color:var(--primary);border-bottom-color:rgba(46,90,82,.35)}
.channel-link.active{color:var(--primary);font-weight:700;border-bottom-color:var(--primary)}

/* ---------- 移动抽屉 ---------- */
.mobile-drawer{--bs-offcanvas-width:320px;background:var(--paper)}
.mobile-drawer .offcanvas-header{border-bottom:1px solid var(--line)}
.mobile-drawer .offcanvas-title{font-family:"Noto Serif SC",serif;font-size:17px;color:var(--ink)}
.drawer-list{list-style:none;padding:0;margin:0 0 24px}
.drawer-list li+li{border-top:1px solid var(--line)}
.drawer-list a{display:flex;align-items:center;justify-content:space-between;padding:16px 4px;font-size:16px;color:var(--ink);min-height:44px}
.drawer-list a:hover{color:var(--accent)}

/* ---------- 面包屑 ---------- */
.crumb{padding:22px 0 0}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;padding:0;margin:0;font-size:13.5px;color:var(--muted)}
.crumb li{display:flex;align-items:center;gap:8px;max-width:100%}
.crumb li+li::before{content:"/";color:#B7B2A8}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--primary)}
.crumb li[aria-current] span,.crumb li[aria-current]{color:var(--ink);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 文章头部 ---------- */
.article-hero{padding:18px 0 40px;border-bottom:1px solid var(--line);background:
  radial-gradient(900px 320px at 88% -40%, rgba(217,121,63,.10), transparent 70%),
  radial-gradient(700px 300px at 6% -30%, rgba(46,90,82,.10), transparent 70%);}
.article-hero__tagline{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:.12em;color:var(--primary);text-transform:uppercase;margin-bottom:16px}
.article-hero__tagline::before{content:"";width:26px;height:1px;background:var(--primary);display:block}
.article-title{font-size:clamp(1.7rem,3.4vw,2.6rem);letter-spacing:-.01em;max-width:960px;margin-bottom:22px}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;font-size:13.5px;color:var(--muted)}
.meta-item{display:inline-flex;align-items:center;gap:7px}
.meta-item i{color:var(--primary);font-size:14px}
.meta-item--cat a{color:var(--primary);font-weight:500}
.meta-pill{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;background:var(--primary-soft);color:var(--primary);font-size:13px;font-weight:500}

/* ---------- 阅读布局 ---------- */
.article-section{padding:56px 0 0}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 268px;gap:56px;align-items:start}
.article-main{max-width:820px;min-width:0}
.article-aside{position:sticky;top:118px}
.toc-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:22px 20px;box-shadow:var(--shadow-1)}
.toc-title{font-size:14px;letter-spacing:.1em;color:var(--muted);font-family:"Inter",sans-serif;font-weight:500;margin-bottom:14px}
.toc-list{list-style:none;margin:0;padding:0;counter-reset:toc}
.toc-item{margin-bottom:4px}
.toc-item a{display:block;padding:7px 10px;border-left:2px solid var(--line);font-size:14px;color:var(--muted);line-height:1.55;transition:.2s}
.toc-item a:hover{color:var(--primary);border-left-color:var(--primary);background:var(--primary-soft)}
.toc-item a.is-active{color:var(--primary);border-left-color:var(--accent);font-weight:500;background:var(--primary-soft)}
.toc-item--sub a{padding-left:22px;font-size:13px}

/* ---------- 正文排版 ---------- */
.article-content{font-size:17.5px;line-height:1.9;color:var(--text)}
.article-content>*+*{margin-top:1.2em}
.article-content p{margin:0 0 1.2em}
.article-content h2{
  font-size:clamp(1.35rem,2.4vw,1.72rem);margin:2.1em 0 .75em;padding-left:15px;
  border-left:4px solid var(--primary);scroll-margin-top:130px;
}
.article-content h3{font-size:1.24rem;margin:1.7em 0 .6em;color:var(--ink);scroll-margin-top:130px}
.article-content h3::before{content:"";display:inline-block;width:7px;height:7px;border-radius:2px;background:var(--accent);margin-right:10px;transform:translateY(-2px)}
.article-content ul,.article-content ol{margin:0 0 1.2em;padding-left:1.45em}
.article-content li{margin-bottom:.5em}
.article-content li::marker{color:var(--primary)}
.article-content a{color:var(--primary);border-bottom:1px solid rgba(46,90,82,.35)}
.article-content a:hover{color:var(--accent);border-bottom-color:var(--accent)}
.article-content strong{color:var(--ink);font-weight:700}
.article-content blockquote{
  margin:1.6em 0;padding:18px 22px;border-left:3px solid var(--accent);background:#fff;
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:#41453F;font-size:16.5px;box-shadow:var(--shadow-1);
}
.article-content blockquote p:last-child{margin-bottom:0}
.article-content img{border-radius:var(--radius-lg);margin:1.6em auto;box-shadow:var(--shadow-1)}
.article-content figure{margin:1.6em 0}
.article-content figcaption{font-size:13.5px;color:var(--muted);text-align:center;margin-top:10px}
.article-content table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15.5px;background:#fff;border-radius:var(--radius-sm);overflow:hidden}
.article-content th,.article-content td{border:1px solid var(--line);padding:12px 14px;text-align:left}
.article-content th{background:#F1EDE4;color:var(--ink);font-weight:700}
.article-content tr:nth-child(even) td{background:#FBFAF7}
.article-content code{background:#EFEBE2;padding:2px 7px;border-radius:6px;font-size:14.5px;color:var(--primary-dark)}
.article-content pre{background:var(--ink);color:#E9E6DE;padding:20px;border-radius:var(--radius-lg);overflow-x:auto;font-size:14.5px;line-height:1.7}
.article-content pre code{background:none;color:inherit;padding:0}
.article-content hr{border:0;border-top:1px solid var(--line);margin:2.4em 0}

/* ---------- 空态 ---------- */
.article-empty{background:#fff;border:1px dashed var(--line);border-radius:var(--radius-lg);padding:64px 32px;text-align:center}
.article-empty i{font-size:38px;color:var(--accent)}
.article-empty h2{font-size:1.4rem;margin:18px 0 10px}
.article-empty p{color:var(--muted);margin-bottom:24px}

/* ---------- 标签 / 上下篇 ---------- */
.tag-block{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:44px;padding-top:26px;border-top:1px solid var(--line)}
.tag-block__label{font-size:13.5px;color:var(--muted);margin-right:4px}
.tag-pill{display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;border:1px solid var(--line);background:#fff;font-size:13.5px;color:var(--muted);transition:.2s}
.tag-pill:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-soft)}
.back-list{display:inline-flex;align-items:center;gap:8px;margin-top:22px;font-size:14.5px;color:var(--primary)}
.back-list:hover{gap:12px;color:var(--accent)}
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:34px}
.post-nav__item{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:20px 22px;transition:.25s}
.post-nav__item:hover{border-color:var(--primary);box-shadow:var(--shadow-2);transform:translateY(-3px)}
.post-nav__label{display:inline-flex;align-items:center;gap:7px;font-size:12.5px;letter-spacing:.08em;color:var(--muted);margin-bottom:8px}
.post-nav__item strong{display:block;font-family:"Noto Serif SC",serif;font-size:16.5px;color:var(--ink);font-weight:700;line-height:1.5}
.post-nav__item--next{text-align:right}
.post-nav__item--next .post-nav__label{justify-content:flex-end}

/* ---------- 相关推荐 ---------- */
.related{padding:72px 0 0}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:30px}
.section-head h2{font-size:clamp(1.4rem,2.6vw,1.9rem)}
.section-head .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:.14em;color:var(--accent);text-transform:uppercase;margin-bottom:10px}
.section-head .eyebrow::before{content:"";width:24px;height:1px;background:var(--accent)}
.section-head p{font-size:14.5px;color:var(--muted);max-width:520px}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.rec-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;transition:.28s;opacity:0;transform:translateY(16px)}
.rec-card.is-in{opacity:1;transform:none}
.rec-card:hover{border-color:var(--primary);box-shadow:var(--shadow-2);transform:translateY(-4px)}
.rec-card__link{display:block;color:inherit}
.rec-card__media{aspect-ratio:16/9;overflow:hidden;background:#EFEBE2}
.rec-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.rec-card:hover .rec-card__media img{transform:scale(1.03)}
.rec-card__body{padding:20px 22px 24px}
.rec-card__body h3{font-size:17.5px;line-height:1.5;margin:12px 0 10px}
.rec-card__body p{font-size:14.5px;color:var(--muted);line-height:1.7}
.rec-card__more{display:inline-flex;align-items:center;gap:7px;margin-top:14px;font-size:14px;color:var(--primary)}
.rec-card:hover .rec-card__more{gap:11px;color:var(--accent)}

/* ---------- CTA ---------- */
.cta-band{margin-top:88px;background:var(--ink) url('/assets/images/backpic/back-3.webp') center/cover no-repeat;position:relative;color:#EDEAE3}
.cta-band::before{content:"";position:absolute;inset:0;background:linear-gradient(105deg,rgba(23,26,24,.95) 0%,rgba(23,26,24,.86) 52%,rgba(34,68,62,.78) 100%)}
.cta-band__inner{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;padding:76px 0;align-items:center}
.cta-band h2{color:#fff;font-size:clamp(1.5rem,2.8vw,2.1rem);margin-bottom:16px}
.cta-band p{color:#B9B6AE;font-size:15.5px;max-width:520px}
.cta-points{list-style:none;padding:0;margin:26px 0 0;display:grid;gap:12px}
.cta-points li{display:flex;align-items:flex-start;gap:11px;font-size:14.5px;color:#D8D5CD}
.cta-points i{color:var(--accent);font-size:16px;margin-top:3px}
.cta-form{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius-lg);padding:28px;backdrop-filter:blur(6px)}
.cta-form__row{margin-bottom:18px}
.cta-form label{display:block;font-size:13.5px;color:#C9C6BE;margin-bottom:8px}
.cta-form input,.cta-form textarea,.cta-form select{
  width:100%;height:48px;border-radius:var(--radius-sm);border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.06);color:#fff;padding:0 14px;font-size:15px;transition:.2s;
}
.cta-form textarea{height:96px;padding:12px 14px;resize:vertical;line-height:1.6}
.cta-form select{appearance:none}
.cta-form input::placeholder,.cta-form textarea::placeholder{color:#8E8B84}
.cta-form input:focus,.cta-form textarea:focus,.cta-form select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(217,121,63,.22)}
.cta-form__submit{width:100%;justify-content:center;height:48px}
.cta-form__note{font-size:12.5px;color:#8E8B84;margin-top:14px;line-height:1.7}
.cta-form__ok{display:none;align-items:center;gap:10px;margin-top:16px;padding:12px 14px;border-radius:var(--radius-sm);background:rgba(63,122,99,.18);border:1px solid rgba(63,122,99,.5);color:#A9D8C2;font-size:14px}
.cta-form__ok.is-show{display:flex}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:0;background:var(--ink);color:#E8E5DE;padding-top:66px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.footer-brand .brand__mark{width:38px;height:38px;border-radius:12px;font-size:17px;box-shadow:none}
.footer-brand strong{font-family:"Noto Serif SC",serif;font-size:17px;color:#fff}
.site-footer h3{font-size:14px;letter-spacing:.1em;color:#fff;margin-bottom:18px;font-family:"Inter",sans-serif;font-weight:500}
.site-footer p{font-size:14px;color:#9E9B94;line-height:1.85;max-width:380px}
.footer-links{list-style:none;padding:0;margin:0;display:grid;gap:11px;font-size:14px}
.footer-links a{color:#AEABA4}
.footer-links a:hover{color:var(--accent)}
.footer-contact li{display:flex;align-items:center;gap:9px;color:#AEABA4;font-size:14px}
.footer-contact i{color:var(--accent);font-size:15px}
.footer-bottom{display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:space-between;align-items:center;border-top:1px solid rgba(255,255,255,.1);padding:20px 0 26px;font-size:13px;color:#8E8B84}
.footer-bottom a{color:#8E8B84}
.footer-bottom a:hover{color:var(--accent)}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:28px;width:46px;height:46px;border-radius:50%;border:1px solid var(--line);
  background:#fff;color:var(--primary);font-size:18px;display:grid;place-items:center;box-shadow:var(--shadow-1);
  opacity:0;visibility:hidden;transform:translateY(10px);transition:.25s;z-index:1040;cursor:pointer;
}
.to-top.is-show{opacity:1;visibility:visible;transform:none}
.to-top:hover{background:var(--primary);color:#fff;border-color:var(--primary)}

/* ---------- 动效 ---------- */
.fade-up{opacity:0;transform:translateY(18px);animation:fadeUp .7s ease forwards}
.fade-up.d1{animation-delay:.08s}
.fade-up.d2{animation-delay:.16s}
@keyframes fadeUp{to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .fade-up{opacity:1;transform:none}
  .rec-card{opacity:1;transform:none}
}

/* ---------- 响应式 ---------- */
@media(max-width:1200px){
  .article-layout{gap:40px;grid-template-columns:minmax(0,1fr) 240px}
}
@media(max-width:992px){
  .header-search,.header-phone{display:none}
  .nav-toggle{display:grid}
  .brand-row{padding:12px 0}
  .article-layout{grid-template-columns:1fr}
  .article-aside{position:static;order:-1;margin-bottom:34px}
  .toc-card{padding:18px}
  .toc-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:4px 12px}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-band__inner{grid-template-columns:1fr;gap:36px;padding:60px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .section-head p{max-width:none}
}
@media(max-width:768px){
  .container{padding-left:18px;padding-right:18px}
  .brand__text small{display:none}
  .brand__text strong{font-size:16px}
  .article-hero{padding:14px 0 30px}
  .article-section{padding:40px 0 0}
  .article-content{font-size:16.5px}
  .post-nav{grid-template-columns:1fr}
  .post-nav__item--next{text-align:left}
  .post-nav__item--next .post-nav__label{justify-content:flex-start}
  .related{padding:56px 0 0}
  .related-grid{grid-template-columns:1fr}
  .cta-band{margin-top:64px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .crumb li[aria-current]{max-width:180px}
}
@media(max-width:520px){
  .article-title{font-size:1.55rem}
  .channel-list{gap:24px}
  .cta-form{padding:22px}
  .to-top{right:16px;bottom:18px}
}

/* roulang page: category1 */
:root{
  --ms-primary:#2E5A52;
  --ms-primary-dark:#24463F;
  --ms-primary-soft:rgba(46,90,82,.08);
  --ms-accent:#D9793F;
  --ms-accent-dark:#C1652D;
  --ms-accent-soft:rgba(217,121,63,.10);
  --ms-bg:#F7F4EE;
  --ms-surface:#FFFFFF;
  --ms-ink:#171A18;
  --ms-text:#2B2F2C;
  --ms-muted:#6B706C;
  --ms-line:#DED9CF;
  --ms-success:#3F7A63;
  --ms-danger:#B14A3A;
  --radius-card:16px;
  --radius-btn:10px;
  --shadow-1:0 8px 24px rgba(23,26,24,.05);
  --shadow-2:0 16px 40px rgba(23,26,24,.10);
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-en:"Inter","Helvetica Neue",Arial,sans-serif;

  --bs-primary:#2E5A52;
  --bs-body-bg:#F7F4EE;
  --bs-body-color:#2B2F2C;
  --bs-border-color:#DED9CF;
  --bs-border-radius:16px;
  --bs-border-radius-sm:10px;
  --bs-link-color:#2E5A52;
  --bs-link-hover-color:#D9793F;
  --bs-font-sans-serif:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ms-bg);
  color:var(--ms-text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--ms-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--ms-accent);}
h1,h2,h3,h4{font-family:var(--font-serif);color:var(--ms-ink);font-weight:700;line-height:1.25;margin:0;}
p{margin:0 0 1em;}
ul{list-style:none;margin:0;padding:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--ms-accent);outline-offset:3px;border-radius:4px;}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px;}
@media (min-width:1400px){.container{max-width:1320px;}}

/* ============ HEADER ============ */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:rgba(247,244,238,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--ms-line);
}
.brand-bar{padding:14px 0 12px;border-bottom:1px solid var(--ms-line);}
.brand-bar__inner{display:flex;align-items:center;gap:24px;}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand__mark{
  width:42px;height:42px;border-radius:12px;flex-shrink:0;
  background:var(--ms-primary);color:#F7F4EE;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-en);font-weight:700;font-size:20px;letter-spacing:.02em;
  box-shadow:0 6px 18px rgba(46,90,82,.24);
}
.brand__text{display:flex;flex-direction:column;line-height:1.2;}
.brand__name{font-family:var(--font-serif);font-size:19px;font-weight:700;color:var(--ms-ink);letter-spacing:.01em;}
.brand__sub{font-size:12px;color:var(--ms-muted);letter-spacing:.14em;font-family:var(--font-en);}
.brand-tools{margin-left:auto;display:flex;align-items:center;gap:14px;}
.search-box{position:relative;display:flex;align-items:center;}
.search-box input{
  width:210px;height:42px;border:1px solid var(--ms-line);border-radius:var(--radius-btn);
  background:var(--ms-surface);padding:0 40px 0 14px;font-size:14px;color:var(--ms-text);
  transition:border-color .2s ease, box-shadow .2s ease;
}
.search-box input:focus{border-color:var(--ms-primary);box-shadow:0 0 0 2px rgba(46,90,82,.14);outline:none;}
.search-box i{position:absolute;right:14px;color:var(--ms-muted);font-size:15px;pointer-events:none;}
.hotline{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ms-text);font-family:var(--font-en);}
.hotline i{color:var(--ms-accent);}
.btn-cta{
  display:inline-flex;align-items:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-btn);
  background:var(--ms-accent);color:#FFF8F2;font-size:15px;font-weight:500;
  border:1px solid var(--ms-accent);cursor:pointer;
  transition:transform .2s ease, background .2s ease, box-shadow .2s ease;
  box-shadow:0 8px 20px rgba(217,121,63,.22);
}
.btn-cta:hover{background:var(--ms-accent-dark);color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(217,121,63,.28);}
.btn-cta i{transition:transform .2s ease;}
.btn-cta:hover i{transform:translateX(4px);}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:var(--radius-btn);
  border:1px solid var(--ms-line);background:var(--ms-surface);color:var(--ms-primary);
  font-size:20px;align-items:center;justify-content:center;
}

.channel-nav{background:transparent;}
.channel-list{display:flex;align-items:center;gap:6px;overflow-x:auto;scrollbar-width:none;}
.channel-list::-webkit-scrollbar{display:none;}
.channel-link{
  display:inline-flex;align-items:center;height:52px;padding:0 16px;
  font-size:15px;color:var(--ms-text);white-space:nowrap;
  border-bottom:2px solid transparent;
  transition:color .2s ease, border-color .2s ease, background .2s ease;
}
.channel-link:hover{color:var(--ms-primary);background:var(--ms-primary-soft);border-radius:8px 8px 0 0;}
.channel-link.active{color:var(--ms-primary);font-weight:500;border-bottom-color:var(--ms-primary);}

/* ============ HERO ============ */
.page-hero{
  position:relative;
  background:#221F1B url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  padding:34px 0 76px;
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(105deg, rgba(23,26,24,.90) 0%, rgba(23,26,24,.72) 46%, rgba(23,26,24,.36) 100%);
}
.page-hero::after{
  content:"";position:absolute;right:-120px;top:-120px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle, rgba(217,121,63,.22), transparent 68%);
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(247,244,238,.66);margin-bottom:34px;}
.breadcrumb-row a{color:rgba(247,244,238,.86);}
.breadcrumb-row a:hover{color:var(--ms-accent);}
.breadcrumb-row span.sep{opacity:.5;}

.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.16em;color:#E9B58C;font-family:var(--font-en);
  text-transform:uppercase;margin-bottom:18px;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--ms-accent);display:block;}
.hero-title{
  font-size:clamp(2rem,4.4vw,3.35rem);
  color:#FBF8F2;line-height:1.2;margin-bottom:20px;
  letter-spacing:-.01em;
}
.hero-title em{font-style:normal;color:#E9B58C;}
.hero-lead{
  font-size:17px;line-height:1.9;color:rgba(247,244,238,.80);
  max-width:56ch;margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.btn-primary-ms{
  display:inline-flex;align-items:center;gap:8px;height:50px;padding:0 26px;
  border-radius:var(--radius-btn);background:var(--ms-accent);color:#FFF8F2;font-size:16px;font-weight:500;
  border:1px solid var(--ms-accent);box-shadow:0 12px 26px rgba(217,121,63,.24);
  transition:transform .2s ease, background .2s ease;
}
.btn-primary-ms:hover{background:var(--ms-accent-dark);color:#fff;transform:translateY(-3px);}
.btn-primary-ms i{transition:transform .2s ease;}
.btn-primary-ms:hover i{transform:translateX(4px);}
.btn-ghost-ms{
  display:inline-flex;align-items:center;gap:8px;height:50px;padding:0 24px;
  border-radius:var(--radius-btn);border:1px solid rgba(247,244,238,.38);
  color:#F7F4EE;font-size:16px;background:rgba(247,244,238,.06);
  transition:background .2s ease, border-color .2s ease, transform .2s ease;
}
.btn-ghost-ms:hover{background:rgba(247,244,238,.14);border-color:rgba(247,244,238,.7);color:#fff;transform:translateY(-3px);}
.hero-stats{display:flex;flex-wrap:wrap;gap:12px;}
.stat-badge{
  display:inline-flex;flex-direction:column;gap:2px;
  padding:12px 18px;border-radius:12px;
  border:1px solid rgba(247,244,238,.18);background:rgba(247,244,238,.07);
}
.stat-badge b{font-family:var(--font-en);font-size:22px;color:#E9B58C;line-height:1.1;}
.stat-badge span{font-size:12.5px;color:rgba(247,244,238,.74);}

.hero-media{position:relative;}
.hero-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:20px;border:1px solid rgba(247,244,238,.16);
  box-shadow:0 30px 60px rgba(0,0,0,.36);
}
.hero-media__tag{
  position:absolute;left:-14px;bottom:22px;
  background:var(--ms-surface);border-radius:14px;padding:14px 18px;
  box-shadow:var(--shadow-2);border:1px solid var(--ms-line);
  display:flex;align-items:center;gap:12px;
}
.hero-media__tag i{font-size:20px;color:var(--ms-primary);}
.hero-media__tag b{display:block;font-size:14px;color:var(--ms-ink);font-family:var(--font-serif);}
.hero-media__tag span{font-size:12.5px;color:var(--ms-muted);}

/* ============ SECTION ============ */
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section--paper{background:var(--ms-bg);}
.section--white{background:var(--ms-surface);border-top:1px solid var(--ms-line);border-bottom:1px solid var(--ms-line);}
.section--dark{background:var(--ms-ink);color:rgba(247,244,238,.82);}
.section-head{max-width:760px;margin-bottom:48px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-label{
  display:inline-block;font-size:13px;letter-spacing:.16em;color:var(--ms-accent);
  font-family:var(--font-en);text-transform:uppercase;margin-bottom:14px;
}
.section-title{font-size:clamp(1.5rem,2.6vw,2.15rem);margin-bottom:16px;}
.section-sub{font-size:16.5px;color:var(--ms-muted);line-height:1.9;margin:0;}
.section--dark .section-title{color:#F7F4EE;}
.section--dark .section-sub{color:rgba(247,244,238,.66);}

/* ============ FEATURE LAYOUT ============ */
.feature-layout{display:grid;grid-template-columns:330px 1fr;gap:64px;align-items:start;}
.feature-aside{position:sticky;top:132px;}
.feature-aside h2{font-size:clamp(1.6rem,2.6vw,2.1rem);margin-bottom:18px;}
.feature-aside p{font-size:15.5px;color:var(--ms-muted);line-height:1.9;}
.aside-note{
  margin-top:26px;padding:18px 20px;border-radius:14px;
  background:var(--ms-primary-soft);border:1px solid rgba(46,90,82,.16);
  font-size:14px;color:var(--ms-primary);line-height:1.8;
}
.feature-list{display:flex;flex-direction:column;gap:14px;}
.feature-item{
  display:grid;grid-template-columns:64px 1fr;gap:22px;
  padding:26px 28px;border-radius:var(--radius-card);
  background:var(--ms-surface);border:1px solid var(--ms-line);
  box-shadow:var(--shadow-1);
  transition:transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.feature-item:hover{transform:translateY(-4px);border-color:var(--ms-primary);box-shadow:var(--shadow-2);}
.feature-index{
  font-family:var(--font-en);font-size:26px;font-weight:700;color:var(--ms-accent);
  line-height:1;padding-top:4px;letter-spacing:.01em;
}
.feature-body h3{font-size:1.15rem;margin-bottom:8px;}
.feature-body p{font-size:15px;color:var(--ms-muted);margin-bottom:12px;line-height:1.85;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:999px;font-size:12.5px;letter-spacing:.02em;
  background:var(--ms-bg);border:1px solid var(--ms-line);color:var(--ms-muted);
}
.tag--accent{background:var(--ms-accent-soft);border-color:rgba(217,121,63,.28);color:var(--ms-accent-dark);}
.tag--primary{background:var(--ms-primary-soft);border-color:rgba(46,90,82,.2);color:var(--ms-primary);}

/* ============ TABLE ============ */
.table-wrap{
  border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--ms-line);
  background:var(--ms-surface);box-shadow:var(--shadow-1);
}
.compare-table{width:100%;border-collapse:collapse;font-size:15px;}
.compare-table thead th{
  background:var(--ms-primary);color:#F7F4EE;font-weight:500;font-size:14px;
  letter-spacing:.04em;padding:16px 20px;text-align:left;white-space:nowrap;
}
.compare-table tbody td{
  padding:18px 20px;border-top:1px solid var(--ms-line);vertical-align:top;color:var(--ms-text);
}
.compare-table tbody tr:hover{background:rgba(46,90,82,.04);}
.compare-table td strong{color:var(--ms-ink);font-weight:700;font-family:var(--font-serif);}
.table-scroll{overflow-x:auto;}
.badge-lite{
  display:inline-block;padding:3px 10px;border-radius:999px;font-size:12.5px;
  background:var(--ms-primary-soft);color:var(--ms-primary);border:1px solid rgba(46,90,82,.18);
}
.badge-lite.warn{background:var(--ms-accent-soft);color:var(--ms-accent-dark);border-color:rgba(217,121,63,.26);}

/* ============ METRICS DARK ============ */
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(247,244,238,.14);border-radius:var(--radius-card);overflow:hidden;}
.metric{background:var(--ms-ink);padding:38px 28px;text-align:left;}
.metric b{
  display:block;font-family:var(--font-en);font-size:clamp(2rem,3.6vw,2.9rem);
  color:#E9B58C;line-height:1;margin-bottom:12px;letter-spacing:-.02em;
}
.metric span{font-size:14px;color:rgba(247,244,238,.66);line-height:1.7;display:block;}

/* ============ STEPS ============ */
.step-line{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;position:relative;}
.step-card{
  position:relative;padding:32px 26px;border-radius:var(--radius-card);
  background:var(--ms-surface);border:1px solid var(--ms-line);box-shadow:var(--shadow-1);
  transition:transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.step-card:hover{transform:translateY(-4px);border-color:var(--ms-primary);box-shadow:var(--shadow-2);}
.step-num{
  font-family:var(--font-en);font-size:44px;font-weight:700;color:rgba(46,90,82,.16);
  line-height:1;margin-bottom:14px;letter-spacing:-.03em;
}
.step-card h3{font-size:1.12rem;margin-bottom:10px;}
.step-card p{font-size:14.8px;color:var(--ms-muted);margin:0;line-height:1.85;}

/* ============ FAQ ============ */
.faq-wrap{max-width:880px;margin:0 auto;}
.accordion-ms .accordion-item{
  background:transparent;border:none;border-bottom:1px solid var(--ms-line);
}
.accordion-ms .accordion-item:first-child{border-top:1px solid var(--ms-line);}
.accordion-ms .accordion-button{
  background:transparent;color:var(--ms-ink);font-family:var(--font-serif);
  font-size:1.05rem;font-weight:700;padding:24px 46px 24px 20px;
  border:none;box-shadow:none;border-left:3px solid transparent;
  transition:color .2s ease, border-color .2s ease, background .2s ease;
}
.accordion-ms .accordion-button:hover{color:var(--ms-primary);background:rgba(46,90,82,.03);}
.accordion-ms .accordion-button:not(.collapsed){
  color:var(--ms-primary);background:rgba(46,90,82,.04);border-left-color:var(--ms-accent);
}
.accordion-ms .accordion-button::after{
  content:"\F4FE";font-family:"bootstrap-icons";background-image:none;
  font-size:18px;color:var(--ms-accent);transform:none;
  position:absolute;right:18px;transition:transform .24s ease;
}
.accordion-ms .accordion-button:not(.collapsed)::after{content:"\F2EA";transform:rotate(180deg);}
.accordion-ms .accordion-body{
  padding:0 46px 26px 20px;font-size:15.5px;color:var(--ms-muted);line-height:1.9;
}

/* ============ CTA + FORM ============ */
.cta-block{
  border-radius:20px;overflow:hidden;border:1px solid var(--ms-line);
  background:var(--ms-surface);box-shadow:var(--shadow-1);
  display:grid;grid-template-columns:1.05fr .95fr;
}
.cta-copy{padding:56px 52px;background:linear-gradient(160deg, rgba(46,90,82,.06), rgba(217,121,63,.06));}
.cta-copy h2{font-size:clamp(1.5rem,2.6vw,2.05rem);margin-bottom:16px;}
.cta-copy p{color:var(--ms-muted);font-size:15.5px;line-height:1.9;}
.contact-list{margin-top:26px;display:flex;flex-direction:column;gap:14px;}
.contact-list li{display:flex;align-items:center;gap:12px;font-size:15px;color:var(--ms-text);}
.contact-list i{width:34px;height:34px;border-radius:10px;background:var(--ms-surface);border:1px solid var(--ms-line);
  color:var(--ms-accent);display:flex;align-items:center;justify-content:center;font-size:15px;flex-shrink:0;}
.form-panel{padding:52px 48px;}
.form-label-ms{font-size:14px;color:var(--ms-text);font-weight:500;margin-bottom:8px;display:block;}
.form-control-ms{
  width:100%;height:48px;border-radius:var(--radius-btn);border:1px solid var(--ms-line);
  background:var(--ms-bg);padding:0 16px;font-size:15px;color:var(--ms-text);
  transition:border-color .2s ease, box-shadow .2s ease, background .2s ease;
}
textarea.form-control-ms{height:auto;padding:12px 16px;line-height:1.7;resize:vertical;}
.form-control-ms:focus{outline:none;border-color:var(--ms-primary);background:#fff;box-shadow:0 0 0 2px rgba(46,90,82,.14);}
.form-control-ms.is-error{border-color:var(--ms-danger);box-shadow:0 0 0 2px rgba(177,74,58,.14);}
.form-field{margin-bottom:18px;}
.form-note{font-size:12.5px;color:var(--ms-muted);line-height:1.7;margin:14px 0 0;}
.btn-submit{
  width:100%;height:50px;border-radius:var(--radius-btn);border:1px solid var(--ms-accent);
  background:var(--ms-accent);color:#FFF8F2;font-size:16px;font-weight:500;cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  transition:background .2s ease, transform .2s ease, box-shadow .2s ease;
  box-shadow:0 10px 24px rgba(217,121,63,.22);
}
.btn-submit:hover{background:var(--ms-accent-dark);transform:translateY(-2px);}
.form-success{
  display:none;margin-top:16px;padding:14px 16px;border-radius:var(--radius-btn);
  background:rgba(63,122,99,.1);border:1px solid rgba(63,122,99,.28);
  color:var(--ms-success);font-size:14.5px;
}
.form-success.show{display:block;}

/* ============ FOOTER ============ */
.site-footer{background:var(--ms-ink);color:rgba(247,244,238,.72);padding:76px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:48px;padding-bottom:48px;border-bottom:1px solid rgba(247,244,238,.12);}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-brand .brand__mark{background:var(--ms-accent);box-shadow:none;}
.footer-brand strong{font-family:var(--font-serif);font-size:18px;color:#F7F4EE;}
.site-footer p{font-size:14.5px;line-height:1.9;color:rgba(247,244,238,.62);max-width:38ch;}
.site-footer h3{font-size:15px;color:#F7F4EE;margin-bottom:20px;font-family:var(--font-serif);letter-spacing:.02em;}
.footer-links{display:flex;flex-direction:column;gap:12px;}
.footer-links a{font-size:14.5px;color:rgba(247,244,238,.66);transition:color .2s ease, transform .2s ease;display:inline-block;}
.footer-links a:hover{color:var(--ms-accent);transform:translateX(3px);}
.footer-contact li{display:flex;align-items:center;gap:10px;font-size:14.5px;color:rgba(247,244,238,.66);}
.footer-contact i{color:var(--ms-accent);}
.footer-bottom{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;padding-top:24px;font-size:13px;color:rgba(247,244,238,.5);}
.footer-bottom a{color:rgba(247,244,238,.68);}
.footer-bottom a:hover{color:var(--ms-accent);}

/* ============ BACK TO TOP ============ */
.back-top{
  position:fixed;right:22px;bottom:26px;width:46px;height:46px;border-radius:50%;
  background:var(--ms-primary);color:#F7F4EE;border:none;font-size:18px;
  display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s ease, transform .25s ease, visibility .25s ease, background .2s ease;
  z-index:1030;box-shadow:var(--shadow-2);cursor:pointer;
}
.back-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.back-top:hover{background:var(--ms-accent);}

/* ============ OFFCANVAS ============ */
.offcanvas-ms{background:var(--ms-bg);}
.offcanvas-ms .offcanvas-header{border-bottom:1px solid var(--ms-line);}
.offcanvas-ms .offcanvas-title{font-family:var(--font-serif);font-size:17px;color:var(--ms-ink);}
.offcanvas-ms .nav-list{display:flex;flex-direction:column;padding:8px 0;}
.offcanvas-ms .nav-list a{
  display:flex;align-items:center;justify-content:space-between;
  padding:15px 4px;font-size:16px;color:var(--ms-text);border-bottom:1px solid var(--ms-line);
}
.offcanvas-ms .nav-list a:hover{color:var(--ms-primary);}
.offcanvas-ms .nav-list a.active{color:var(--ms-primary);font-weight:500;}

/* ============ ANIMATION ============ */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s ease, transform .6s ease;}
.reveal.is-visible{opacity:1;transform:translateY(0);}
.hero-copy > *{opacity:0;transform:translateY(18px);animation:heroUp .8s ease forwards;}
.hero-copy > *:nth-child(1){animation-delay:.05s;}
.hero-copy > *:nth-child(2){animation-delay:.16s;}
.hero-copy > *:nth-child(3){animation-delay:.27s;}
.hero-copy > *:nth-child(4){animation-delay:.38s;}
.hero-copy > *:nth-child(5){animation-delay:.49s;}
@keyframes heroUp{to{opacity:1;transform:translateY(0);}}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
  .hero-copy > *{opacity:1;transform:none;}
}

/* ============ RESPONSIVE ============ */
@media (max-width:1199.98px){
  .hero-grid{gap:40px;}
  .feature-layout{grid-template-columns:290px 1fr;gap:44px;}
  .cta-copy{padding:44px 36px;}
  .form-panel{padding:44px 36px;}
}
@media (max-width:991.98px){
  .section{padding:72px 0;}
  .section--tight{padding:56px 0;}
  .search-box, .hotline{display:none;}
  .menu-toggle{display:inline-flex;}
  .brand-bar__inner{gap:16px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-media{order:-1;}
  .hero-media img{aspect-ratio:16/10;}
  .hero-media__tag{left:16px;bottom:16px;}
  .feature-layout{grid-template-columns:1fr;gap:32px;}
  .feature-aside{position:static;}
  .metric-grid{grid-template-columns:repeat(2,1fr);}
  .step-line{grid-template-columns:1fr;}
  .cta-block{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .channel-link{height:48px;padding:0 14px;font-size:14.5px;}
}
@media (max-width:767.98px){
  body{font-size:15.5px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:32px;}
  .page-hero{padding:24px 0 56px;}
  .hero-lead{font-size:16px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .btn-primary-ms, .btn-ghost-ms{justify-content:center;width:100%;}
  .stat-badge{flex:1 1 44%;}
  .feature-item{grid-template-columns:1fr;gap:12px;padding:22px 20px;}
  .feature-index{font-size:22px;}
  .metric-grid{grid-template-columns:1fr;}
  .metric{padding:28px 22px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:36px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .cta-copy, .form-panel{padding:32px 22px;}
  .accordion-ms .accordion-button{font-size:1rem;padding:20px 42px 20px 14px;}
  .accordion-ms .accordion-body{padding:0 30px 22px 14px;}
  .back-top{right:14px;bottom:16px;}
}
@media (max-width:575.98px){
  .container{padding:0 16px;}
  .brand__name{font-size:17px;}
  .btn-cta{height:42px;padding:0 16px;font-size:14px;}
  .table-scroll{border-radius:14px;}
  .compare-table{font-size:14px;}
  .compare-table thead th, .compare-table tbody td{padding:14px 14px;}
  .hero-media__tag{display:none;}
}

/* roulang page: category3 */
:root{
  --c-primary:#2E5A52;
  --c-primary-dark:#22443E;
  --c-primary-soft:#E7EFEC;
  --c-accent:#D9793F;
  --c-accent-soft:#FBEADE;
  --c-bg:#F7F4EE;
  --c-surface:#FFFFFF;
  --c-ink:#171A18;
  --c-body:#2B2F2C;
  --c-muted:#6B706C;
  --c-line:#DED9CF;
  --c-success:#3F7A63;
  --c-danger:#B14A3A;

  --radius-card:16px;
  --radius-btn:10px;
  --radius-pill:999px;

  --shadow-1:0 8px 24px rgba(23,26,24,.05);
  --shadow-2:0 16px 40px rgba(23,26,24,.10);

  --sp-1:8px; --sp-2:16px; --sp-3:24px; --sp-4:32px; --sp-5:48px; --sp-6:72px; --sp-7:96px;

  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-num:"Inter","Noto Sans SC",sans-serif;

  --bs-primary:#2E5A52;
  --bs-primary-rgb:46,90,82;
  --bs-body-bg:#F7F4EE;
  --bs-body-color:#2B2F2C;
  --bs-border-color:#DED9CF;
  --bs-border-radius:16px;
  --bs-font-sans-serif:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --bs-link-color:#2E5A52;
  --bs-link-hover-color:#D9793F;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-body);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .22s ease;}
a:hover{color:var(--c-accent);}
h1,h2,h3,h4{font-family:var(--font-serif);color:var(--c-ink);line-height:1.25;font-weight:700;margin:0 0 var(--sp-2);}
h1{font-size:clamp(2rem,5vw,3.4rem);line-height:1.18;letter-spacing:-.01em;}
h2{font-size:clamp(1.5rem,3vw,2.25rem);}
h3{font-size:1.25rem;line-height:1.4;}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:3px;border-radius:4px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:1400px){.container{max-width:1320px;}}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--c-line);
}
.brandbar__inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:var(--sp-3);min-height:72px;
}
.brand{display:inline-flex;align-items:center;gap:12px;color:var(--c-ink);}
.brand:hover{color:var(--c-ink);}
.brand__mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;
  background:linear-gradient(145deg,var(--c-primary),#3C6E64);
  color:#F7F4EE;font-family:var(--font-num);font-weight:700;font-size:1.15rem;
  display:grid;place-items:center;letter-spacing:0;
  box-shadow:0 6px 16px rgba(46,90,82,.28);
}
.brand__text{font-family:var(--font-serif);font-size:1.12rem;font-weight:700;letter-spacing:.02em;}
.brandbar__tools{display:flex;align-items:center;gap:var(--sp-2);}
.nav-search{
  display:flex;align-items:center;gap:8px;
  background:var(--c-bg);border:1px solid var(--c-line);border-radius:var(--radius-pill);
  padding:0 16px;height:44px;min-width:230px;transition:border-color .22s ease,box-shadow .22s ease;
}
.nav-search:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 2px rgba(46,90,82,.14);}
.nav-search i{color:var(--c-muted);font-size:.95rem;}
.nav-search input{
  border:0;background:transparent;outline:none;width:100%;font-size:.92rem;
}
.nav-phone{
  display:inline-flex;align-items:center;gap:8px;font-size:.92rem;color:var(--c-body);
  font-family:var(--font-num);white-space:nowrap;
}
.nav-phone i{color:var(--c-accent);}
.nav-phone:hover{color:var(--c-accent);}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-line);border-radius:var(--radius-btn);
  background:#fff;font-size:1.3rem;color:var(--c-ink);
}

.btn{font-weight:500;border-radius:var(--radius-btn);transition:all .24s ease;}
.btn-primary{
  --bs-btn-bg:var(--c-primary);--bs-btn-border-color:var(--c-primary);
  --bs-btn-hover-bg:var(--c-primary-dark);--bs-btn-hover-border-color:var(--c-primary-dark);
  --bs-btn-active-bg:var(--c-primary-dark);--bs-btn-active-border-color:var(--c-primary-dark);
  --bs-btn-color:#fff;--bs-btn-hover-color:#fff;--bs-btn-active-color:#fff;
  box-shadow:0 6px 18px rgba(46,90,82,.22);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(46,90,82,.28);}
.btn-accent{
  background:var(--c-accent);border:1px solid var(--c-accent);color:#fff;
  box-shadow:0 8px 20px rgba(217,121,63,.26);
}
.btn-accent:hover{background:#C46A33;border-color:#C46A33;color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(217,121,63,.32);}
.btn-ghost{
  background:transparent;border:1px solid var(--c-line);color:var(--c-ink);
}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);background:#fff;transform:translateY(-2px);}
.btn-lg{padding:14px 30px;font-size:1rem;}
.nav-cta{padding:10px 22px;font-size:.92rem;}

/* ---------- Channel nav ---------- */
.channel-nav{border-top:1px solid var(--c-line);background:#fff;}
.channel-list{
  display:flex;align-items:center;gap:6px;
  overflow-x:auto;scroll-snap-type:x proximity;
  -ms-overflow-style:none;scrollbar-width:none;
}
.channel-list::-webkit-scrollbar{display:none;}
.channel-link{
  display:inline-flex;align-items:center;height:52px;padding:0 16px;
  font-size:.95rem;color:var(--c-body);white-space:nowrap;scroll-snap-align:start;
  border-bottom:2px solid transparent;transition:all .22s ease;
}
.channel-link:hover{background:var(--c-primary-soft);color:var(--c-primary);}
.channel-link.active{color:var(--c-primary);border-bottom-color:var(--c-primary);font-weight:700;}

.offcanvas{--bs-offcanvas-width:300px;}
.offcanvas-header{border-bottom:1px solid var(--c-line);}
.offcanvas-title{font-family:var(--font-serif);font-size:1.05rem;}
.mobile-nav-list li a{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 4px;border-bottom:1px solid var(--c-line);color:var(--c-body);font-size:.98rem;
}
.mobile-nav-list li a.active{color:var(--c-primary);font-weight:700;}

/* ---------- Breadcrumb ---------- */
.breadcrumb-wrap{padding:20px 0 0;}
.breadcrumb{
  --bs-breadcrumb-divider:'›';background:transparent;padding:0;margin:0;font-size:.85rem;color:var(--c-muted);
}
.breadcrumb a{color:var(--c-muted);}
.breadcrumb a:hover{color:var(--c-accent);}
.breadcrumb-item.active{color:var(--c-ink);}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  padding:56px 0 72px;
  background-image:linear-gradient(120deg,rgba(247,244,238,.97) 0%,rgba(247,244,238,.88) 46%,rgba(247,244,238,.72) 100%),
                   url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
}
.hero::after{
  content:"";position:absolute;inset:auto -80px -120px auto;width:420px;height:420px;border-radius:50%;
  border:1px solid rgba(46,90,82,.14);opacity:.5;pointer-events:none;
}
.hero__eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  padding:6px 16px;border-radius:var(--radius-pill);
  background:var(--c-primary-soft);color:var(--c-primary);
  font-size:.8rem;letter-spacing:.08em;font-weight:500;margin-bottom:20px;
}
.hero__eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-accent);}
.hero h1{margin-bottom:20px;}
.hero h1 .hl{
  color:var(--c-primary);position:relative;white-space:nowrap;
}
.hero h1 .hl::after{
  content:"";position:absolute;left:0;right:0;bottom:6px;height:8px;
  background:rgba(217,121,63,.22);z-index:-1;border-radius:4px;
}
.hero__lead{font-size:1.05rem;color:var(--c-muted);max-width:560px;margin-bottom:28px;}
.hero__actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:32px;}
.hero__badges{display:flex;flex-wrap:wrap;gap:28px;}
.hero-badge strong{
  display:block;font-family:var(--font-num);font-size:1.6rem;color:var(--c-primary);line-height:1.2;
}
.hero-badge span{font-size:.8rem;color:var(--c-muted);}
.hero-figure{
  position:relative;border-radius:22px;overflow:hidden;
  border:1px solid var(--c-line);box-shadow:var(--shadow-2);background:#fff;
}
.hero-figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;}
.hero-figure__note{
  position:absolute;left:18px;bottom:18px;right:18px;
  background:rgba(23,26,24,.78);color:#F2EFE8;border-radius:12px;
  padding:12px 16px;font-size:.82rem;line-height:1.6;backdrop-filter:blur(4px);
}

/* ---------- Section base ---------- */
.section{padding:var(--sp-7) 0;}
.section--tight{padding:var(--sp-6) 0;}
.section-head{max-width:760px;margin-bottom:var(--sp-5);}
.section-head .kicker{
  display:inline-block;font-size:.78rem;letter-spacing:.16em;color:var(--c-accent);
  font-weight:700;margin-bottom:12px;
}
.section-head p{color:var(--c-muted);margin:0;}

/* ---------- Chips ---------- */
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:var(--sp-5);}
.chip{
  border:1px solid var(--c-line);background:#fff;color:var(--c-body);
  padding:9px 20px;border-radius:var(--radius-pill);font-size:.88rem;
  transition:all .22s ease;cursor:pointer;min-height:44px;display:inline-flex;align-items:center;
}
.chip:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-2px);}
.chip.is-active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;box-shadow:0 8px 18px rgba(46,90,82,.22);}

/* ---------- Case cards ---------- */
.case-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--sp-4) var(--sp-3);}
.case-col-2{padding-top:56px;}
.case-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
  height:100%;display:flex;flex-direction:column;
}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--c-primary);}
.case-card__media{position:relative;overflow:hidden;background:var(--c-primary-soft);}
.case-card__media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .5s ease;}
.case-card:hover .case-card__media img{transform:scale(1.03);}
.case-card__tag{
  position:absolute;left:14px;top:14px;
  background:rgba(23,26,24,.82);color:#F2EFE8;font-size:.76rem;letter-spacing:.08em;
  padding:5px 14px;border-radius:var(--radius-pill);backdrop-filter:blur(4px);
}
.case-card__body{padding:24px;display:flex;flex-direction:column;flex:1;}
.case-card__body h3{margin-bottom:10px;}
.case-card__body > p{color:var(--c-muted);font-size:.94rem;margin-bottom:18px;}
.case-metrics{
  display:flex;gap:28px;padding:16px 0;margin-bottom:16px;
  border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);
}
.case-metrics li strong{
  display:block;font-family:var(--font-num);font-size:1.45rem;color:var(--c-accent);line-height:1.2;
}
.case-metrics li span{font-size:.78rem;color:var(--c-muted);}
.case-quote{
  font-family:var(--font-serif);font-size:.94rem;color:var(--c-body);
  border-left:3px solid var(--c-primary);padding-left:14px;margin:0 0 20px;line-height:1.7;
}
.link-arrow{
  margin-top:auto;display:inline-flex;align-items:center;gap:8px;
  font-size:.9rem;font-weight:500;color:var(--c-primary);
}
.link-arrow i{transition:transform .24s ease;}
.link-arrow:hover i{transform:translateX(4px);}

/* ---------- Dark metrics ---------- */
.dark-block{
  position:relative;background:var(--c-ink);color:#E9E5DC;overflow:hidden;
  padding:var(--sp-7) 0;
}
.dark-block::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(23,26,24,.92),rgba(23,26,24,.96)),url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;opacity:.9;
}
.dark-block > .container{position:relative;z-index:1;}
.dark-block h2{color:#F5F2EB;}
.dark-block .section-head p{color:#A9AEA8;}
.metric-strip{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  border-top:1px solid rgba(222,217,207,.2);
}
.metric-cell{
  padding:32px 24px 8px;border-right:1px solid rgba(222,217,207,.14);
}
.metric-cell:last-child{border-right:0;}
.metric-cell strong{
  display:block;font-family:var(--font-num);font-weight:700;
  font-size:clamp(1.9rem,3.4vw,2.8rem);color:var(--c-accent);line-height:1.1;margin-bottom:10px;
}
.metric-cell span{font-size:.86rem;color:#A9AEA8;display:block;line-height:1.7;}

/* ---------- Voices ---------- */
.voice-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--sp-3);}
.voice-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-card);
  padding:28px;box-shadow:var(--shadow-1);transition:transform .28s ease,box-shadow .28s ease;
}
.voice-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.voice-card .role{font-size:.82rem;color:var(--c-muted);margin-bottom:14px;display:block;}
.voice-card blockquote{
  font-family:var(--font-serif);font-size:1rem;line-height:1.8;margin:0 0 18px;color:var(--c-body);
}
.voice-card .who{font-size:.86rem;color:var(--c-primary);font-weight:500;}

/* ---------- Steps rail ---------- */
.rail{position:relative;padding-left:0;}
.rail-line{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--sp-3);
  border-top:1px solid var(--c-line);padding-top:32px;
}
.rail-item .num{
  font-family:var(--font-num);font-size:1.5rem;font-weight:700;color:var(--c-accent);
  display:block;margin-bottom:12px;
}
.rail-item h3{font-size:1.08rem;margin-bottom:8px;}
.rail-item p{font-size:.9rem;color:var(--c-muted);margin:0;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto;}
.accordion{--bs-accordion-border-color:var(--c-line);--bs-accordion-active-bg:transparent;}
.accordion-item{
  border:0;border-bottom:1px solid var(--c-line);background:transparent;
}
.accordion-item:first-child{border-top:1px solid var(--c-line);}
.accordion-button{
  background:transparent;color:var(--c-ink);font-family:var(--font-serif);font-size:1.05rem;font-weight:700;
  padding:22px 48px 22px 18px;border-left:3px solid transparent;transition:all .24s ease;
}
.accordion-button:not(.collapsed){
  color:var(--c-primary);border-left-color:var(--c-accent);box-shadow:none;
}
.accordion-button:focus{box-shadow:none;border-color:var(--c-line);}
.accordion-button::after{
  background-image:none;content:"+";font-size:1.5rem;font-weight:400;color:var(--c-muted);
  width:auto;height:auto;transform:none;line-height:1;position:absolute;right:20px;top:50%;margin-top:-12px;
}
.accordion-button:not(.collapsed)::after{content:"–";color:var(--c-accent);transform:none;}
.accordion-body{padding:0 48px 24px 18px;color:var(--c-muted);font-size:.95rem;}
.accordion-collapse{transition:height .24s ease;}

/* ---------- CTA / form ---------- */
.cta-section{padding:var(--sp-7) 0;background:var(--c-primary-soft);}
.cta-panel{
  background:#fff;border:1px solid var(--c-line);border-radius:22px;
  box-shadow:var(--shadow-2);overflow:hidden;
}
.cta-panel__aside{
  background:linear-gradient(160deg,var(--c-primary),#264D46);color:#EFEDE6;padding:44px 36px;height:100%;
}
.cta-panel__aside h3{color:#fff;}
.cta-panel__aside p{color:#CFD8D4;font-size:.94rem;}
.cta-list li{
  display:flex;gap:12px;align-items:flex-start;font-size:.92rem;color:#E3E6E1;margin-bottom:14px;
}
.cta-list i{color:var(--c-accent);margin-top:4px;}
.cta-panel__form{padding:44px 36px;}
.form-label{font-size:.9rem;font-weight:500;color:var(--c-ink);margin-bottom:8px;}
.form-control,.form-select{
  border-radius:var(--radius-btn);border:1px solid var(--c-line);
  min-height:48px;font-size:.95rem;background:#fff;color:var(--c-body);
  transition:border-color .22s ease,box-shadow .22s ease;
}
.form-control:focus,.form-select:focus{
  border-color:var(--c-primary);box-shadow:0 0 0 2px rgba(46,90,82,.16);
}
textarea.form-control{min-height:110px;padding-top:12px;}
.form-hint{font-size:.78rem;color:var(--c-muted);margin-top:10px;}
.form-note{
  display:none;margin-top:16px;padding:12px 16px;border-radius:var(--radius-btn);
  background:rgba(63,122,99,.1);color:var(--c-success);font-size:.9rem;border:1px solid rgba(63,122,99,.28);
}
.form-note.is-visible{display:block;}

/* ---------- Footer ---------- */
.site-footer{background:var(--c-ink);color:#C9CEC8;padding:var(--sp-7) 0 0;font-size:.92rem;}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:var(--sp-5);
  padding-bottom:var(--sp-6);border-bottom:1px solid rgba(222,217,207,.14);
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-brand .brand__mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:11px;
  background:linear-gradient(145deg,var(--c-accent),#C46A33);
  color:#fff;display:grid;place-items:center;font-family:var(--font-num);font-weight:700;
  box-shadow:none;
}
.footer-brand strong{color:#F5F2EB;font-family:var(--font-serif);font-size:1.05rem;}
.site-footer h3{
  color:#F5F2EB;font-size:.95rem;font-family:var(--font-sans);font-weight:700;
  margin-bottom:18px;letter-spacing:.04em;
}
.site-footer p{color:#9DA29C;line-height:1.85;font-size:.9rem;}
.footer-links li{margin-bottom:12px;}
.footer-links a{color:#C9CEC8;font-size:.9rem;}
.footer-links a:hover{color:var(--c-accent);}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;color:#C9CEC8;font-size:.9rem;}
.footer-contact i{color:var(--c-accent);margin-top:5px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  padding:24px 0;font-size:.82rem;color:#8C9189;
}
.footer-bottom a{color:#8C9189;}
.footer-bottom a:hover{color:var(--c-accent);}

/* ---------- Back to top ---------- */
.to-top{
  position:fixed;right:22px;bottom:26px;z-index:1040;
  width:46px;height:46px;border-radius:50%;border:1px solid var(--c-line);
  background:#fff;color:var(--c-primary);box-shadow:var(--shadow-1);
  display:grid;place-items:center;font-size:1.1rem;
  opacity:0;visibility:hidden;transform:translateY(10px);transition:all .3s ease;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:none;}
.to-top:hover{background:var(--c-primary);color:#fff;border-color:var(--c-primary);}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s 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;}
}

/* ---------- Responsive ---------- */
@media (max-width:1199.98px){
  .metric-strip{grid-template-columns:repeat(2,minmax(0,1fr));}
  .metric-cell:nth-child(2){border-right:0;}
  .metric-cell:nth-child(1),.metric-cell:nth-child(2){border-bottom:1px solid rgba(222,217,207,.14);}
}
@media (max-width:991.98px){
  .nav-search{display:none;}
  .nav-toggle{display:grid;place-items:center;}
  .nav-phone{display:none;}
  .case-grid{grid-template-columns:1fr;}
  .case-col-2{padding-top:0;}
  .voice-grid{grid-template-columns:1fr;}
  .rail-line{grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--sp-3);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:var(--sp-4);}
  .section{padding:64px 0;}
  .cta-panel__aside{padding:34px 26px;}
  .cta-panel__form{padding:34px 26px;}
}
@media (max-width:767.98px){
  body{font-size:16px;}
  .section{padding:48px 0;}
  .dark-block{padding:56px 0;}
  .breadcrumb-wrap{padding-top:14px;}
  .hero{padding:36px 0 52px;}
  .hero__badges{gap:20px;}
  .metric-strip{grid-template-columns:1fr;}
  .metric-cell{border-right:0;border-bottom:1px solid rgba(222,217,207,.14);padding:24px 0 16px;}
  .metric-cell:last-child{border-bottom:0;}
  .rail-line{grid-template-columns:1fr;gap:24px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .hero-figure__note{position:static;border-radius:0;background:var(--c-ink);margin:0;}
  .accordion-button{font-size:.98rem;padding-right:42px;}
  .accordion-body{padding-right:16px;}
}

/* roulang page: category2 */
:root{
  --bs-primary:#2E5A52;
  --bs-primary-rgb:46,90,82;
  --bs-body-bg:#F7F4EE;
  --bs-body-color:#2B2F2C;
  --bs-border-color:#DED9CF;
  --bs-border-radius:16px;
  --bs-font-sans-serif:"Noto Sans SC","PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;

  --ink:#171A18;
  --ink-soft:#2B2F2C;
  --muted:#6B706C;
  --line:#DED9CF;
  --paper:#F7F4EE;
  --paper-2:#FFFDF9;
  --green:#2E5A52;
  --green-deep:#224039;
  --green-soft:rgba(46,90,82,.08);
  --orange:#D9793F;
  --orange-soft:rgba(217,121,63,.10);
  --success:#3F7A63;
  --danger:#B14A3A;

  --radius:16px;
  --radius-sm:10px;
  --shadow-sm:0 8px 24px rgba(23,26,24,.05);
  --shadow-md:0 16px 40px rgba(23,26,24,.10);

  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --num:"Inter","Noto Sans SC",sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:132px}
body{
  margin:0;background:var(--paper);color:var(--ink-soft);
  font-family:var(--sans);font-size:17px;line-height:1.85;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .22s ease,opacity .22s ease}
a:hover{color:var(--green)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--ink);font-family:var(--serif);font-weight:600;line-height:1.25}
p{margin:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--orange);outline-offset:3px;border-radius:6px}

.container{width:100%;max-width:1200px;padding-inline:24px;margin-inline:auto}
@media (min-width:1400px){.container{max-width:1320px}}

.section{padding:96px 0}
.section--tight{padding:72px 0}
.section--paper{background:var(--paper-2);border-block:1px solid var(--line)}
.section--ink{background:var(--ink);color:#E8E4DB}
@media (max-width:991.98px){.section{padding:72px 0}.section--tight{padding:56px 0}}
@media (max-width:767.98px){.section{padding:48px 0}.section--tight{padding:44px 0}}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.18em;color:var(--green);
  text-transform:uppercase;font-weight:500;font-family:var(--num);
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--green);opacity:.6}
.section-head{max-width:760px;margin-bottom:48px}
.section-head h2{font-size:clamp(1.5rem,3vw,2.25rem);margin:14px 0 16px}
.section-head h2::after{content:"";display:block;width:56px;height:3px;background:var(--green);margin-top:18px;border-radius:2px}
.section-head p{color:var(--muted);font-size:16px}
.section-head--center{margin-inline:auto;text-align:center}
.section-head--center h2::after{margin-inline:auto}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:rgba(247,244,238,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.brand-bar__inner{display:flex;align-items:center;gap:28px;min-height:76px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand__mark{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:var(--green);color:#F7F4EE;font-family:var(--num);font-weight:700;font-size:19px;
  box-shadow:0 6px 16px rgba(46,90,82,.28);position:relative;overflow:hidden;
}
.brand__mark::after{content:"";position:absolute;inset:auto -6px -10px auto;width:26px;height:14px;border:1px solid rgba(247,244,238,.4);border-radius:50%;opacity:.55}
.brand__text{display:flex;flex-direction:column;line-height:1.2}
.brand__text strong{font-family:var(--serif);font-size:19px;color:var(--ink);letter-spacing:.01em}
.brand__text em{font-style:normal;font-size:12px;color:var(--muted);letter-spacing:.04em}

.brand-search{
  flex:1;max-width:340px;display:flex;align-items:center;gap:10px;
  background:#fff;border:1px solid var(--line);border-radius:999px;padding:0 16px;height:44px;
  transition:border-color .2s,box-shadow .2s;
}
.brand-search i{color:var(--muted);font-size:15px}
.brand-search input{border:0;outline:0;background:transparent;width:100%;font-size:14px;color:var(--ink-soft)}
.brand-search:focus-within{border-color:var(--green);box-shadow:0 0 0 2px rgba(46,90,82,.16)}

.brand-actions{margin-left:auto;display:flex;align-items:center;gap:14px}
.link-quiet{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--muted);font-family:var(--num)}
.link-quiet i{color:var(--green)}
.link-quiet:hover{color:var(--green)}

.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--orange);color:#fff;border:1px solid var(--orange);
  height:44px;padding:0 22px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:500;transition:transform .22s,box-shadow .22s,background .22s;
}
.btn-brand:hover{background:#c86a33;color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(217,121,63,.28)}
.btn-brand i{transition:transform .22s}
.btn-brand:hover i{transform:translateX(4px)}

.btn-ink{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--green);color:#F7F4EE;border:1px solid var(--green);
  height:48px;padding:0 26px;border-radius:var(--radius-sm);font-size:15px;font-weight:500;
  transition:transform .22s,box-shadow .22s,background .22s;
}
.btn-ink:hover{background:var(--green-deep);color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(46,90,82,.24)}
.btn-ink i{transition:transform .22s}
.btn-ink:hover i{transform:translateX(4px)}

.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:transparent;color:var(--ink);border:1px solid var(--line);
  height:48px;padding:0 24px;border-radius:var(--radius-sm);font-size:15px;font-weight:500;
  transition:border-color .22s,color .22s,transform .22s,background .22s;
}
.btn-line:hover{border-color:var(--green);color:var(--green);background:#fff;transform:translateY(-2px)}

.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--ink);font-size:20px;align-items:center;justify-content:center;
}

.channel-nav{border-top:1px solid var(--line);background:rgba(255,253,249,.6)}
.channel-list{display:flex;align-items:center;gap:6px;overflow-x:auto;scroll-snap-type:x mandatory;-ms-overflow-style:none;scrollbar-width:none}
.channel-list::-webkit-scrollbar{display:none}
.channel-list li{scroll-snap-align:start;flex:0 0 auto}
.channel-link{
  display:inline-block;padding:14px 18px;font-size:15px;color:var(--muted);
  border-bottom:2px solid transparent;white-space:nowrap;transition:color .2s,background .2s,border-color .2s;
}
.channel-link:hover{color:var(--green);background:var(--green-soft)}
.channel-link.active{color:var(--ink);font-weight:500;border-bottom-color:var(--green)}

@media (max-width:1199.98px){
  .brand-search{max-width:220px}
}
@media (max-width:991.98px){
  .brand-search{display:none}
  .nav-toggle{display:inline-flex}
  .brand-bar__inner{min-height:66px;gap:16px}
  .brand__text em{display:none}
}
@media (max-width:575.98px){
  .link-quiet{display:none}
  .brand__text strong{font-size:16px}
  .btn-brand{height:42px;padding:0 16px;font-size:14px}
}

/* offcanvas */
.offcanvas.mobile-drawer{background:var(--paper);width:min(88vw,360px)}
.mobile-drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 22px}
.mobile-drawer .offcanvas-body{padding:20px 22px 32px}
.mobile-drawer .drawer-title{font-family:var(--serif);font-size:17px;color:var(--ink)}
.drawer-nav li+li{border-top:1px solid var(--line)}
.drawer-nav a{display:flex;align-items:center;justify-content:space-between;padding:16px 2px;font-size:16px;color:var(--ink-soft)}
.drawer-nav a.active{color:var(--green);font-weight:500}
.drawer-nav a i{color:var(--muted);font-size:13px}
.drawer-foot{margin-top:26px;display:grid;gap:10px;font-size:14px;color:var(--muted)}
.drawer-foot a{color:var(--green)}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(247,244,238,.97) 0%,rgba(247,244,238,.90) 46%,rgba(247,244,238,.58) 100%);
}
.hero__inner{position:relative;z-index:2;display:grid;grid-template-columns:1.04fr .96fr;gap:56px;align-items:center;padding:76px 0 84px}
.hero__tag{
  display:inline-flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--line);
  border-radius:999px;padding:7px 16px;font-size:13px;color:var(--muted);box-shadow:var(--shadow-sm);
}
.hero__tag b{color:var(--orange);font-family:var(--num);font-weight:600}
.hero h1{
  font-size:clamp(2rem,5vw,4rem);line-height:1.16;margin:22px 0 20px;letter-spacing:-.01em;
}
.hero h1 span{display:block;opacity:0;transform:translateY(18px);animation:riseIn .72s cubic-bezier(.22,.8,.3,1) forwards}
.hero h1 span:nth-child(1){animation-delay:.06s}
.hero h1 span:nth-child(2){animation-delay:.2s;color:var(--green)}
@keyframes riseIn{to{opacity:1;transform:translateY(0)}}
.hero__lead{font-size:17px;color:#4B514C;max-width:560px;line-height:1.9}
.hero__cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero__stats{display:flex;flex-wrap:wrap;gap:36px;margin-top:40px;padding-top:26px;border-top:1px solid var(--line)}
.hero__stat b{display:block;font-family:var(--num);font-size:30px;font-weight:700;color:var(--ink);line-height:1}
.hero__stat b i{font-style:normal;font-size:15px;color:var(--orange);margin-left:2px}
.hero__stat span{font-size:13px;color:var(--muted);letter-spacing:.02em}

.hero__media{position:relative}
.hero__media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:22px;
  box-shadow:var(--shadow-md);border:1px solid var(--line);
}
.hero__float{
  position:absolute;left:-18px;bottom:26px;background:#fff;border:1px solid var(--line);
  border-radius:14px;padding:16px 20px;box-shadow:var(--shadow-md);min-width:200px;
}
.hero__float strong{display:block;font-family:var(--num);font-size:22px;color:var(--green)}
.hero__float span{font-size:13px;color:var(--muted)}

@media (max-width:991.98px){
  .hero__inner{grid-template-columns:1fr;gap:36px;padding:52px 0 60px}
  .hero__media img{aspect-ratio:16/9}
  .hero__float{position:static;margin-top:16px;display:inline-block}
}
@media (max-width:575.98px){
  .hero__stats{gap:22px}
  .hero__stat b{font-size:24px}
}

/* breadcrumb */
.crumb{position:relative;z-index:3;padding-top:18px}
.breadcrumb{--bs-breadcrumb-divider:'/';margin:0;font-size:13px;color:var(--muted)}
.breadcrumb-item a{color:var(--muted)}
.breadcrumb-item a:hover{color:var(--green)}
.breadcrumb-item.active{color:var(--ink)}
.breadcrumb-item+.breadcrumb-item::before{color:#B9B3A7}

/* ---------- prep cards ---------- */
.prep-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.prep-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:30px 26px;box-shadow:var(--shadow-sm);transition:transform .28s,box-shadow .28s,border-color .28s;
}
.prep-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--green)}
.prep-card__num{font-family:var(--num);font-size:13px;letter-spacing:.16em;color:var(--orange);font-weight:600}
.prep-card h3{font-size:19px;margin:14px 0 10px}
.prep-card p{font-size:15px;color:var(--muted);line-height:1.8}
.prep-note{
  display:flex;gap:14px;align-items:flex-start;margin-top:28px;background:var(--green-soft);
  border-left:3px solid var(--green);border-radius:0 var(--radius-sm) var(--radius-sm) 0;padding:20px 24px;
}
.prep-note i{color:var(--green);font-size:20px;line-height:1.5}
.prep-note p{font-size:15px;color:#3C4A45}
@media (max-width:991.98px){.prep-grid{grid-template-columns:1fr}}

/* ---------- timeline ---------- */
.timeline{position:relative;max-width:1000px;margin:0 auto;padding-left:0}
.timeline::before{
  content:"";position:absolute;left:33px;top:12px;bottom:40px;width:2px;
  background:linear-gradient(180deg,var(--green) 0%,rgba(46,90,82,.25) 70%,rgba(46,90,82,0) 100%);
}
.step{position:relative;padding-left:98px;padding-bottom:44px}
.step:last-child{padding-bottom:0}
.step__num{
  position:absolute;left:0;top:0;width:68px;height:68px;border-radius:20px;
  background:var(--green);color:#F7F4EE;display:grid;place-items:center;
  font-family:var(--num);font-size:22px;font-weight:700;letter-spacing:.02em;
  box-shadow:0 10px 24px rgba(46,90,82,.22);border:3px solid var(--paper);
}
.step__body{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px 30px;
  box-shadow:var(--shadow-sm);transition:transform .28s,box-shadow .28s,border-color .28s;
}
.step:hover .step__body{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#C9D2CE}
.step__body h3{font-size:20px;margin-bottom:10px}
.step__body h3 em{font-style:normal;font-family:var(--num);font-size:13px;color:var(--orange);letter-spacing:.14em;display:block;margin-bottom:8px;font-weight:600}
.step__body p{font-size:15.5px;color:#4B514C}
.step__list{margin-top:16px;display:grid;gap:10px}
.step__list li{position:relative;padding-left:22px;font-size:15px;color:var(--muted)}
.step__list li::before{content:"";position:absolute;left:0;top:12px;width:7px;height:7px;border-radius:50%;background:var(--orange);opacity:.75}
.step__figure{margin-top:20px;border-radius:14px;overflow:hidden;border:1px solid var(--line)}
.step__figure img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s ease}
.step:hover .step__figure img{transform:scale(1.03)}
.step__figure figcaption{font-size:13px;color:var(--muted);padding:10px 14px;background:var(--paper-2);border-top:1px solid var(--line)}
@media (max-width:767.98px){
  .timeline::before{left:23px}
  .step{padding-left:64px;padding-bottom:32px}
  .step__num{width:48px;height:48px;border-radius:14px;font-size:17px}
  .step__body{padding:22px 20px}
}

/* ---------- quick table ---------- */
.table-wrap{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);
}
.data-table{width:100%;border-collapse:collapse;font-size:15px}
.data-table thead th{
  background:var(--green);color:#F3F0E9;font-weight:500;font-size:14px;letter-spacing:.04em;
  text-align:left;padding:16px 22px;white-space:nowrap;
}
.data-table tbody td{padding:16px 22px;border-top:1px solid var(--line);color:#4B514C;vertical-align:top}
.data-table tbody tr{transition:background .2s}
.data-table tbody tr:hover{background:#FBFAF6}
.data-table tbody td:first-child{color:var(--ink);font-weight:500;white-space:nowrap}
.data-table .tag{
  display:inline-block;font-size:12px;padding:3px 10px;border-radius:999px;
  background:var(--orange-soft);color:#A7531F;font-family:var(--num);letter-spacing:.02em;
}
.table-scroll{overflow-x:auto}
.table-scroll .data-table{min-width:720px}
@media (max-width:767.98px){.data-table thead th,.data-table tbody td{padding:14px 16px}}

/* ---------- trouble ---------- */
.trouble{display:grid;grid-template-columns:.95fr 1.05fr;gap:48px;align-items:center}
.trouble__media{border-radius:20px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-sm)}
.trouble__media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.trouble__list{display:grid;gap:18px;margin-top:6px}
.trouble__item{
  background:#fff;border:1px solid var(--line);border-left:3px solid var(--orange);
  border-radius:0 var(--radius) var(--radius) 0;padding:20px 24px;box-shadow:var(--shadow-sm);
  transition:transform .26s,box-shadow .26s;
}
.trouble__item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.trouble__item h3{font-size:17px;margin-bottom:8px}
.trouble__item p{font-size:15px;color:var(--muted)}
@media (max-width:991.98px){.trouble{grid-template-columns:1fr;gap:32px}}

/* ---------- faq ---------- */
.faq{max-width:880px;margin:0 auto}
.faq .accordion-item{background:transparent;border:0;border-top:1px solid var(--line);border-radius:0}
.faq .accordion-item:last-child{border-bottom:1px solid var(--line)}
.faq .accordion-button{
  background:transparent;color:var(--ink);font-family:var(--serif);font-size:17.5px;font-weight:500;
  padding:24px 56px 24px 20px;border-radius:0!important;box-shadow:none;position:relative;line-height:1.6;
}
.faq .accordion-button:not(.collapsed){
  color:var(--green);background:linear-gradient(90deg,rgba(217,121,63,.07),rgba(217,121,63,0) 62%);
  box-shadow:inset 3px 0 0 0 var(--orange);
}
.faq .accordion-button:focus{box-shadow:none;outline:none}
.faq .accordion-button::after{display:none}
.faq .accordion-button::before{
  content:"+";position:absolute;right:14px;top:50%;transform:translateY(-50%);
  font-family:var(--num);font-size:24px;font-weight:400;color:var(--green);line-height:1;
  transition:color .2s,transform .24s;
}
.faq .accordion-button:not(.collapsed)::before{content:"−";color:var(--orange);transform:translateY(-50%) rotate(180deg)}
.faq .accordion-body{padding:0 56px 26px 20px;font-size:15.5px;color:var(--muted);line-height:1.9}
.faq .accordion-collapse{transition:height .24s ease}

/* ---------- cta ---------- */
.cta-block{
  background:var(--ink);color:#E8E4DB;border-radius:24px;padding:56px;
  display:grid;grid-template-columns:1fr 1fr;gap:56px;position:relative;overflow:hidden;
}
.cta-block::before{
  content:"";position:absolute;right:-80px;top:-80px;width:300px;height:300px;border-radius:50%;
  border:1px solid rgba(217,121,63,.28);
}
.cta-block::after{
  content:"";position:absolute;right:20px;bottom:-120px;width:260px;height:260px;border-radius:50%;
  border:1px solid rgba(247,244,238,.10);
}
.cta-block h2{color:#F7F4EE;font-size:clamp(1.5rem,2.6vw,2.1rem);margin-bottom:18px}
.cta-block p{color:#B9B6AD;font-size:15.5px}
.cta-points{display:grid;gap:12px;margin-top:28px}
.cta-points li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:#CFCBC2}
.cta-points i{color:var(--orange);font-size:16px;line-height:1.9}
.cta-form{position:relative;z-index:2;background:#20241F;border:1px solid #333830;border-radius:18px;padding:30px}
.cta-form h3{color:#F7F4EE;font-size:18px;margin-bottom:6px}
.cta-form .hint{font-size:13px;color:#8F948B;margin-bottom:20px}
.form-label{font-size:14px;color:#B9B6AD;margin-bottom:8px}
.cta-form .form-control,.cta-form .form-select{
  background:#171A18;border:1px solid #3A4038;color:#EDEAE3;height:48px;border-radius:10px;font-size:15px;
}
.cta-form textarea.form-control{height:auto;min-height:104px;padding:12px 14px;line-height:1.7}
.cta-form .form-control::placeholder{color:#7C8179}
.cta-form .form-control:focus,.cta-form .form-select:focus{
  background:#171A18;border-color:var(--orange);color:#fff;box-shadow:0 0 0 2px rgba(217,121,63,.28);
}
.btn-submit{
  width:100%;height:50px;border:0;border-radius:10px;background:var(--orange);color:#fff;
  font-size:15.5px;font-weight:500;display:inline-flex;align-items:center;justify-content:center;gap:8px;
  transition:background .22s,transform .22s,box-shadow .22s;
}
.btn-submit:hover{background:#c86a33;transform:translateY(-2px);box-shadow:0 14px 30px rgba(217,121,63,.3)}
.btn-submit i{transition:transform .22s}
.btn-submit:hover i{transform:translateX(4px)}
.form-privacy{font-size:12.5px;color:#7C8179;margin-top:14px;line-height:1.7}
.form-alert{
  display:none;margin-top:16px;border-radius:10px;padding:12px 16px;font-size:14px;
  background:rgba(63,122,99,.16);border:1px solid rgba(63,122,99,.5);color:#8FD0B4;
}
.form-alert.show{display:block}
@media (max-width:991.98px){
  .cta-block{grid-template-columns:1fr;padding:36px 26px;gap:32px}
}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#C9C5BC;padding:72px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.footer-brand .brand__mark{background:#F7F4EE;color:var(--ink);width:38px;height:38px;border-radius:10px;font-size:17px;box-shadow:none}
.footer-brand strong{font-family:var(--serif);font-size:18px;color:#F7F4EE}
.site-footer p{font-size:14.5px;color:#989D94;line-height:1.9;max-width:340px}
.site-footer h3{font-family:var(--sans);font-size:14px;color:#F7F4EE;letter-spacing:.06em;margin-bottom:18px;font-weight:500}
.footer-links{display:grid;gap:11px}
.footer-links a{font-size:14.5px;color:#A6ABA2;transition:color .2s,padding-left .2s}
.footer-links a:hover{color:var(--orange);padding-left:4px}
.footer-contact li{display:flex;align-items:center;gap:10px;font-size:14.5px;color:#A6ABA2}
.footer-contact i{color:var(--orange);font-size:15px}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:14px 28px;justify-content:space-between;align-items:center;
  border-top:1px solid #2B302A;margin-top:56px;padding-top:24px;font-size:13px;color:#83887F;
}
.footer-bottom a{color:#A6ABA2}
.footer-bottom a:hover{color:var(--orange)}
@media (max-width:991.98px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:575.98px){.footer-grid{grid-template-columns:1fr;gap:32px}.site-footer{padding:52px 0 24px}}

/* ---------- utils ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s cubic-bezier(.22,.8,.3,1)}
.reveal.is-visible{opacity:1;transform:none}
.to-top{
  position:fixed;right:22px;bottom:26px;width:46px;height:46px;border-radius:14px;border:1px solid var(--line);
  background:#fff;color:var(--green);display:grid;place-items:center;box-shadow:var(--shadow-sm);
  opacity:0;visibility:hidden;transition:opacity .3s,transform .3s;z-index:1020;
}
.to-top.show{opacity:1;visibility:visible}
.to-top:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category4 */
:root{
  --brand:#2E5A52;
  --brand-dark:#24463F;
  --brand-soft:#E8EFEC;
  --copper:#D9793F;
  --copper-dark:#BC6430;
  --paper:#F7F4EE;
  --paper-2:#FDFBF7;
  --ink:#171A18;
  --ink-2:#222623;
  --body:#2B2F2C;
  --muted:#6B706C;
  --line:#DED9CF;
  --line-soft:#EDE9E1;
  --ok:#3F7A63;
  --err:#B14A3A;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-sm:0 8px 24px rgba(23,26,24,.05);
  --shadow-lg:0 16px 40px rgba(23,26,24,.10);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,serif;
  --sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --num:"Inter","Noto Sans SC",system-ui,sans-serif;
  --bs-primary:#2E5A52;
  --bs-primary-rgb:46,90,82;
  --bs-body-bg:#F7F4EE;
  --bs-body-color:#2B2F2C;
  --bs-border-color:#DED9CF;
  --bs-border-radius:16px;
  --bs-font-sans-serif:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--body);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:var(--copper);}
button,input,textarea,select{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{font-family:var(--serif);color:var(--ink);font-weight:700;margin:0;}
p{margin:0 0 1em;}
:focus-visible{outline:2px solid var(--copper);outline-offset:3px;border-radius:4px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media (min-width:1400px){.container{max-width:1320px;}}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:rgba(247,244,238,.96);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:76px;}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand__mark{
  width:42px;height:42px;flex:0 0 42px;display:grid;place-items:center;border-radius:12px;
  background:var(--brand);color:#F4F1EA;font-family:var(--num);font-weight:700;font-size:20px;letter-spacing:.5px;
  box-shadow:0 6px 18px rgba(46,90,82,.28);
}
.brand__text{display:flex;flex-direction:column;line-height:1.25;}
.brand__text strong{font-family:var(--serif);font-size:20px;font-weight:700;letter-spacing:.2px;}
.brand__text em{font-style:normal;font-size:12.5px;color:var(--muted);letter-spacing:.4px;}
.topbar__tools{display:flex;align-items:center;gap:14px;}
.nav-search{position:relative;display:flex;align-items:center;}
.nav-search input{
  width:220px;height:44px;padding:0 42px 0 16px;border:1px solid var(--line);border-radius:var(--radius-pill);
  background:var(--paper-2);color:var(--body);font-size:14.5px;transition:border-color .2s,box-shadow .2s,width .25s ease;
}
.nav-search input::placeholder{color:#9AA09B;}
.nav-search input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(46,90,82,.14);width:250px;}
.nav-search i{position:absolute;right:16px;color:var(--muted);pointer-events:none;}
.topbar__phone{display:inline-flex;align-items:center;gap:8px;font-family:var(--num);font-size:14.5px;font-weight:600;color:var(--brand);white-space:nowrap;}
.topbar__phone i{font-size:15px;}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;
  border:none;border-radius:var(--radius-btn);background:var(--copper);color:#fff;font-weight:600;font-size:15px;
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;white-space:nowrap;
}
.btn-brand:hover{background:var(--copper-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(217,121,63,.28);}
.btn-brand i{transition:transform .2s ease;}
.btn-brand:hover i{transform:translateX(4px);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;
  border:1px solid var(--line);border-radius:var(--radius-btn);background:transparent;color:var(--ink);font-weight:600;font-size:15px;
  transition:border-color .2s,background .2s,transform .2s,color .2s;
}
.btn-ghost:hover{border-color:var(--brand);background:var(--brand-soft);color:var(--brand-dark);transform:translateY(-2px);}
.btn-ghost i{transition:transform .2s ease;}
.btn-ghost:hover i{transform:translateX(4px);}
.nav-toggle{
  display:none;align-items:center;justify-content:center;width:44px;height:44px;border:1px solid var(--line);
  border-radius:var(--radius-btn);background:var(--paper-2);color:var(--ink);font-size:20px;
}
.channel-nav{border-top:1px solid var(--line-soft);background:rgba(253,251,247,.7);}
.channel-list{display:flex;align-items:center;gap:6px;list-style:none;margin:0;padding:0;overflow-x:auto;scrollbar-width:none;}
.channel-list::-webkit-scrollbar{display:none;}
.channel-link{
  display:inline-flex;align-items:center;height:52px;padding:0 16px;white-space:nowrap;
  color:var(--body);font-size:15px;font-weight:500;border-bottom:2px solid transparent;transition:color .2s,border-color .2s,background .2s;
}
.channel-link:hover{color:var(--brand-dark);background:var(--brand-soft);border-bottom-color:rgba(46,90,82,.35);}
.channel-link.active{color:var(--brand-dark);font-weight:700;border-bottom-color:var(--brand);}

/* ---------- breadcrumb ---------- */
.crumb-bar{padding:22px 0 0;}
.breadcrumb{--bs-breadcrumb-divider:">";margin:0;font-size:13.5px;color:var(--muted);}
.breadcrumb-item+.breadcrumb-item::before{color:#B4B9B4;padding:0 8px;}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--copper);}
.breadcrumb-item.active{color:var(--brand-dark);font-weight:600;}

/* ---------- hero ---------- */
.page-hero{position:relative;padding:56px 0 72px;overflow:hidden;}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
  opacity:.10;pointer-events:none;
}
.page-hero::after{
  content:"";position:absolute;right:-160px;top:-120px;width:620px;height:620px;border-radius:50%;
  border:1px solid rgba(46,90,82,.16);pointer-events:none;
}
.page-hero .container{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:var(--radius-pill);
  background:var(--brand-soft);color:var(--brand-dark);font-size:13px;font-weight:600;letter-spacing:.4px;margin-bottom:22px;
}
.eyebrow i{color:var(--copper);}
h1{
  font-size:clamp(2rem,5vw,3.4rem);
  line-height:1.2;letter-spacing:.2px;margin-bottom:20px;
}
h1 .hl{color:var(--brand);border-bottom:3px solid var(--copper);padding-bottom:2px;}
.hero-lead{font-size:17.5px;line-height:1.9;color:var(--body);max-width:620px;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.hero-metrics{display:flex;flex-wrap:wrap;gap:14px;}
.metric-chip{
  flex:1 1 150px;min-width:150px;background:var(--paper-2);border:1px solid var(--line);border-radius:14px;padding:16px 18px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.metric-chip:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:var(--brand);}
.metric-chip .num{font-family:var(--num);font-size:26px;font-weight:700;color:var(--brand);line-height:1.1;display:block;}
.metric-chip .num em{font-style:normal;font-size:15px;font-weight:600;color:var(--copper);margin-left:2px;}
.metric-chip span{display:block;font-size:13px;color:var(--muted);margin-top:6px;}
.hero-visual{position:relative;}
.hero-visual img{border-radius:var(--radius-card);box-shadow:var(--shadow-lg);width:100%;aspect-ratio:4/3;object-fit:cover;}
.hero-visual .float-card{
  position:absolute;left:-22px;bottom:26px;background:var(--paper-2);border:1px solid var(--line);
  border-radius:14px;padding:16px 20px;box-shadow:var(--shadow-lg);max-width:250px;
}
.hero-visual .float-card strong{display:block;font-family:var(--num);font-size:20px;color:var(--copper);}
.hero-visual .float-card span{font-size:13px;color:var(--muted);}

/* ---------- section ---------- */
.section{padding:88px 0;}
.section--tight{padding:64px 0;}
.section--paper{background:var(--paper-2);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head .kicker{
  display:inline-block;font-family:var(--num);font-size:12.5px;font-weight:700;letter-spacing:2px;
  color:var(--copper);text-transform:uppercase;margin-bottom:14px;
}
h2{font-size:clamp(1.5rem,3vw,2.25rem);line-height:1.3;margin-bottom:16px;}
.section-head p{color:var(--muted);font-size:16px;margin:0;}
h3{font-size:1.25rem;line-height:1.45;margin-bottom:10px;}

/* ---------- 自助排查卡 ---------- */
.triage-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.triage-card{
  position:relative;background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px 24px 26px;box-shadow:var(--shadow-sm);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  display:flex;flex-direction:column;
}
.triage-card::before{
  content:attr(data-index);position:absolute;top:20px;right:22px;font-family:var(--num);font-size:13px;font-weight:700;
  color:var(--brand);border:1px solid var(--line);border-radius:var(--radius-pill);padding:2px 10px;background:var(--brand-soft);
}
.triage-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--brand);}
.triage-card i.triage-icon{font-size:24px;color:var(--copper);margin-bottom:16px;display:block;}
.triage-card p{font-size:14.5px;color:var(--muted);margin-bottom:14px;line-height:1.8;}
.triage-card ul{list-style:none;margin:0 0 18px;padding:0;}
.triage-card ul li{position:relative;padding-left:18px;font-size:14px;color:var(--body);line-height:1.8;}
.triage-card ul li::before{content:"";position:absolute;left:0;top:12px;width:6px;height:6px;border-radius:50%;background:var(--brand);}
.triage-card .card-link{margin-top:auto;font-size:14px;font-weight:600;color:var(--brand-dark);display:inline-flex;align-items:center;gap:6px;}
.triage-card .card-link i{transition:transform .2s ease;font-size:13px;}
.triage-card:hover .card-link i{transform:translateX(4px);}

/* ---------- FAQ 筛选 + 手风琴 ---------- */
.faq-toolbar{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-bottom:26px;}
.faq-search{position:relative;flex:1 1 320px;max-width:460px;}
.faq-search input{
  width:100%;height:48px;padding:0 44px 0 18px;border:1px solid var(--line);border-radius:var(--radius-btn);
  background:var(--paper-2);color:var(--body);font-size:15px;transition:border-color .2s,box-shadow .2s;
}
.faq-search input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(46,90,82,.14);}
.faq-search i{position:absolute;right:18px;top:50%;transform:translateY(-50%);color:var(--muted);}
.faq-tags{display:flex;flex-wrap:wrap;gap:8px;}
.faq-tag{
  border:1px solid var(--line);background:var(--paper-2);border-radius:var(--radius-pill);
  padding:8px 16px;font-size:13.5px;color:var(--body);cursor:pointer;transition:all .2s ease;min-height:38px;
}
.faq-tag:hover{border-color:var(--brand);color:var(--brand-dark);}
.faq-tag.active{background:var(--brand);border-color:var(--brand);color:#F4F1EA;font-weight:600;}
.faq-wrap{max-width:880px;}
.faq-empty{display:none;padding:28px;border:1px dashed var(--line);border-radius:var(--radius-card);color:var(--muted);font-size:15px;background:var(--paper-2);}
.accordion{--bs-accordion-border-color:var(--line);--bs-accordion-border-radius:0;--bs-accordion-inner-border-radius:0;}
.accordion-item{border:none;border-bottom:1px solid var(--line);background:transparent;}
.accordion-item:first-child{border-top:1px solid var(--line);}
.accordion-button{
  background:transparent;color:var(--ink);font-family:var(--serif);font-size:17.5px;font-weight:700;line-height:1.6;
  padding:22px 46px 22px 18px;border-radius:0;box-shadow:none;transition:background .24s ease,color .24s ease;
}
.accordion-button:not(.collapsed){color:var(--brand-dark);background:var(--brand-soft);box-shadow:none;}
.accordion-button:focus{box-shadow:none;outline:none;border-color:var(--line);}
.accordion-button::after{
  background-image:none;content:"\F4FE";font-family:"bootstrap-icons";font-size:16px;color:var(--brand);
  width:auto;height:auto;transform:none;transition:transform .24s ease;position:absolute;right:18px;
}
.accordion-button:not(.collapsed)::after{content:"\F2EA";transform:none;color:var(--copper);}
.accordion-item:has(.accordion-button:not(.collapsed)){border-left:3px solid var(--copper);padding-left:0;}
.accordion-body{padding:6px 18px 26px 18px;font-size:15.5px;line-height:1.9;color:var(--body);background:var(--brand-soft);}
.accordion-body p:last-child{margin-bottom:0;}
.accordion-body .hint{
  display:block;margin-top:14px;padding:12px 16px;border-left:3px solid var(--brand);background:rgba(255,255,255,.7);
  border-radius:0 10px 10px 0;font-size:14px;color:var(--brand-dark);
}

/* ---------- 深色指标区 ---------- */
.dark-band{background:var(--ink);color:#E9E5DC;padding:76px 0;position:relative;overflow:hidden;}
.dark-band::before{
  content:"";position:absolute;left:-120px;bottom:-160px;width:520px;height:520px;border-radius:50%;
  border:1px solid rgba(217,121,63,.28);pointer-events:none;
}
.dark-band .container{position:relative;z-index:2;}
.dark-band .kicker{color:var(--copper);font-family:var(--num);font-size:12.5px;font-weight:700;letter-spacing:2px;text-transform:uppercase;display:inline-block;margin-bottom:14px;}
.dark-band h2{color:#F4F1EA;}
.dark-band p{color:#B7B2A8;}
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:44px;}
.stat-item{border-top:2px solid rgba(217,121,63,.5);padding-top:22px;}
.stat-item .num{font-family:var(--num);font-size:clamp(2rem,4vw,2.75rem);font-weight:700;color:#F4F1EA;line-height:1.1;}
.stat-item .num em{font-style:normal;color:var(--copper);font-size:1.4rem;margin-left:2px;}
.stat-item span{display:block;margin-top:10px;font-size:14px;color:#A9A49A;line-height:1.7;}

/* ---------- 支持渠道表 ---------- */
.table-shell{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-sm);overflow:hidden;}
.table-shell table{margin:0;width:100%;border-collapse:collapse;}
.table-shell thead th{
  background:var(--brand);color:#F4F1EA;font-family:var(--serif);font-weight:700;font-size:15px;
  padding:16px 22px;text-align:left;white-space:nowrap;
}
.table-shell tbody td{padding:18px 22px;border-top:1px solid var(--line-soft);font-size:15px;color:var(--body);vertical-align:top;}
.table-shell tbody tr:hover td{background:var(--brand-soft);}
.table-shell tbody td strong{color:var(--ink);font-family:var(--serif);}
.pill{
  display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:var(--radius-pill);
  font-size:12.5px;font-weight:600;
}
.pill--ok{background:rgba(63,122,99,.12);color:var(--ok);}
.pill--warn{background:rgba(217,121,63,.14);color:var(--copper-dark);}
.pill--ink{background:rgba(23,26,24,.08);color:var(--ink);}

/* ---------- 文档卡 ---------- */
.doc-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:32px;align-items:stretch;}
.doc-media{position:relative;border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-sm);min-height:320px;}
.doc-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.doc-media:hover img{transform:scale(1.03);}
.doc-media .media-tag{
  position:absolute;left:20px;bottom:20px;background:rgba(23,26,24,.82);color:#F4F1EA;border-radius:var(--radius-pill);
  padding:8px 18px;font-size:13.5px;font-weight:600;
}
.doc-list{display:grid;gap:14px;align-content:start;}
.doc-item{
  display:flex;gap:16px;align-items:flex-start;background:var(--paper-2);border:1px solid var(--line);
  border-radius:14px;padding:20px 22px;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.doc-item:hover{transform:translateY(-3px);border-color:var(--brand);box-shadow:var(--shadow-sm);}
.doc-item i{font-size:20px;color:var(--copper);margin-top:3px;}
.doc-item h3{font-size:1.05rem;margin-bottom:6px;}
.doc-item p{font-size:14.5px;color:var(--muted);margin:0;}
.doc-item .go{margin-left:auto;color:var(--muted);font-size:14px;transition:transform .2s ease;align-self:center;}
.doc-item:hover .go{transform:translateX(4px);color:var(--copper);}

/* ---------- CTA 表单 ---------- */
.cta-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:48px;align-items:start;}
.cta-side .contact-line{display:flex;align-items:center;gap:12px;font-size:15px;color:var(--body);margin-bottom:14px;font-family:var(--num);}
.cta-side .contact-line i{color:var(--copper);font-size:17px;}
.cta-qr{
  margin-top:26px;border:1px solid var(--line);border-radius:var(--radius-card);padding:22px;background:var(--paper-2);
  display:flex;gap:18px;align-items:center;box-shadow:var(--shadow-sm);
}
.cta-qr .qr-box{width:96px;height:96px;flex:0 0 96px;border-radius:12px;background:var(--brand-soft);display:grid;place-items:center;color:var(--brand);font-size:32px;}
.cta-qr strong{display:block;font-family:var(--serif);font-size:16px;color:var(--ink);margin-bottom:4px;}
.cta-qr span{font-size:13.5px;color:var(--muted);line-height:1.7;}
.form-card{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-card);padding:34px;box-shadow:var(--shadow-sm);}
.form-label{font-size:14px;font-weight:600;color:var(--ink);margin-bottom:8px;}
.form-control,.form-select{
  height:48px;border-radius:var(--radius-btn);border:1px solid var(--line);background:#fff;color:var(--body);
  font-size:15px;padding:0 16px;transition:border-color .2s,box-shadow .2s;
}
textarea.form-control{height:auto;min-height:120px;padding:14px 16px;line-height:1.8;}
.form-control:focus,.form-select:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(46,90,82,.14);}
.form-control.is-invalid{border-color:var(--err);}
.invalid-tip{display:none;color:var(--err);font-size:13px;margin-top:6px;}
.form-note{font-size:12.5px;color:var(--muted);margin-top:14px;line-height:1.7;}
.form-success{
  display:none;margin-top:18px;padding:14px 18px;border-radius:var(--radius-btn);
  background:rgba(63,122,99,.12);color:var(--ok);font-size:14.5px;border-left:3px solid var(--ok);
}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#C9C4BA;padding:72px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-brand .brand__mark{width:38px;height:38px;flex:0 0 38px;font-size:18px;border-radius:10px;background:var(--copper);box-shadow:none;}
.footer-brand strong{font-family:var(--serif);font-size:19px;color:#F4F1EA;}
.site-footer h3{font-family:var(--serif);font-size:15.5px;color:#F4F1EA;margin-bottom:18px;letter-spacing:.4px;}
.site-footer p{font-size:14px;line-height:1.85;color:#A9A49A;margin:0;}
.footer-links{list-style:none;margin:0;padding:0;}
.footer-links li{margin-bottom:12px;}
.footer-links a{color:#C9C4BA;font-size:14.5px;}
.footer-links a:hover{color:var(--copper);}
.footer-contact li{display:flex;align-items:center;gap:10px;font-size:14px;color:#A9A49A;font-family:var(--num);}
.footer-contact i{color:var(--copper);font-size:15px;}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.1);padding:24px 0 30px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;font-size:13px;color:#8E8A81;
}
.footer-bottom a{color:#C9C4BA;}
.footer-bottom a:hover{color:var(--copper);}

/* ---------- back to top ---------- */
.to-top{
  position:fixed;right:24px;bottom:28px;width:46px;height:46px;border-radius:50%;border:none;
  background:var(--brand);color:#F4F1EA;display:grid;place-items:center;font-size:18px;
  box-shadow:0 12px 28px rgba(23,26,24,.24);opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s ease,transform .25s ease,background .2s ease;z-index:1040;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--copper);}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease;}
.reveal.in{opacity:1;transform:translateY(0);}
.hero-anim{opacity:0;transform:translateY(16px);animation:fadeUp .7s ease forwards;}
.hero-anim.d1{animation-delay:.08s;}
.hero-anim.d2{animation-delay:.18s;}
.hero-anim.d3{animation-delay:.28s;}
.hero-anim.d4{animation-delay:.38s;}
@keyframes fadeUp{to{opacity:1;transform:translateY(0);}}

/* offcanvas */
.offcanvas{background:var(--paper);}
.offcanvas-header{border-bottom:1px solid var(--line);padding:20px 22px;}
.offcanvas-title{font-family:var(--serif);font-size:18px;color:var(--ink);}
.offcanvas-body{padding:18px 22px 32px;}
.mobile-nav{list-style:none;margin:0 0 24px;padding:0;}
.mobile-nav li{border-bottom:1px solid var(--line-soft);}
.mobile-nav a{display:flex;align-items:center;justify-content:space-between;padding:16px 4px;font-size:15.5px;color:var(--body);min-height:44px;}
.mobile-nav a.active{color:var(--brand-dark);font-weight:700;}
.mobile-nav a i{color:var(--muted);}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .triage-grid{grid-template-columns:repeat(2,1fr);}
  .stat-row{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:38px;}
  .hero-visual{order:-1;}
  .hero-visual .float-card{left:16px;bottom:16px;}
  .doc-grid{grid-template-columns:1fr;}
  .cta-grid{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .nav-search{display:none;}
  .section{padding:72px 0;}
}
@media (max-width:991px){
  .topbar__phone{display:none;}
  .nav-toggle{display:inline-flex;}
  .channel-nav{overflow:hidden;}
  .channel-list{scroll-snap-type:x mandatory;padding:0 8px;}
  .channel-link{scroll-snap-align:start;height:48px;font-size:14.5px;padding:0 14px;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .section{padding:56px 0;}
  .section--tight{padding:48px 0;}
  .triage-grid{grid-template-columns:1fr;}
  .stat-row{grid-template-columns:1fr;gap:0;}
  .stat-item{padding-top:18px;margin-bottom:26px;}
  .table-shell{overflow-x:auto;}
  .table-shell table{min-width:640px;}
  .accordion-button{font-size:16px;padding:18px 42px 18px 14px;}
  .accordion-body{padding:4px 14px 22px 14px;}
  .form-card{padding:24px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .hero-actions .btn-brand,.hero-actions .btn-ghost{flex:1 1 auto;}
}
@media (max-width:520px){
  .container{padding:0 18px;}
  .brand__text strong{font-size:17px;}
  .brand__text em{font-size:11.5px;}
  .brand__mark{width:38px;height:38px;flex:0 0 38px;font-size:18px;}
  .topbar__inner{min-height:66px;}
  .metric-chip{flex:1 1 100%;}
  .cta-qr{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
  .reveal{opacity:1;transform:none;}
  .hero-anim{opacity:1;transform:none;}
}