/* roulang page: index */
:root{
  --c-primary:#E8501E;
  --c-primary-dark:#C43D12;
  --c-primary-soft:#FDEDE6;
  --c-second:#0F7A5A;
  --c-second-soft:#E4F2EC;
  --c-accent:#FFC93C;
  --c-ink:#15171C;
  --c-text:#1F2229;
  --c-muted:#5B616E;
  --c-faint:#8D93A0;
  --c-bg:#FAF8F5;
  --c-alt:#F2EFE9;
  --c-line:#E6E1D8;
  --c-white:#FFFFFF;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --shadow-card:0 1px 2px rgba(21,23,28,.04), 0 8px 24px rgba(21,23,28,.06);
  --shadow-hover:0 12px 32px rgba(21,23,28,.10);
  --gap-section:56px;
}
@media (min-width:640px){:root{--gap-section:72px}}
@media (min-width:1024px){:root{--gap-section:96px}}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",sans-serif;
  background:var(--c-bg);
  color:var(--c-text);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  word-break:normal;
  overflow-wrap:break-word;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;letter-spacing:0;color:var(--c-ink)}
h1{font-size:clamp(28px,4.6vw,46px);font-weight:800;line-height:1.25}
h2{font-size:clamp(22px,3vw,32px);font-weight:800;line-height:1.3}
h3{font-size:18px;font-weight:700;line-height:1.4}
@media (min-width:640px){h3{font-size:19px}}
h4{font-size:16px;font-weight:700;line-height:1.45}
p{margin:0 0 1.15em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}

.container-x{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
@media (min-width:1024px){.container-x{padding-left:32px;padding-right:32px}}
.section{padding-top:var(--gap-section);padding-bottom:var(--gap-section)}
.section-alt{background:var(--c-alt)}
.section-ink{background:var(--c-ink)}
.num{font-weight:600;letter-spacing:.02em;font-variant-numeric:tabular-nums}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.04em;
  color:var(--c-primary);
  background:var(--c-primary-soft);
  border-radius:var(--r-pill);
  padding:6px 14px;
}
.eyebrow-second{color:var(--c-second);background:var(--c-second-soft)}
.title-line{display:flex;align-items:center;gap:12px}
.title-line::before{content:"";width:4px;height:22px;border-radius:2px;background:var(--c-primary);flex:none}
@media (min-width:640px){.title-line::before{height:28px}}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:20px}
.section-sub{color:var(--c-muted);font-size:15px;max-width:640px;margin-top:10px}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 24px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 1px 2px rgba(232,80,30,.24)}
.btn-primary:hover{background:var(--c-primary-dark);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-soft)}
.btn-ghost:active{transform:translateY(1px)}
.btn-highlight{background:var(--c-accent);color:var(--c-ink);font-weight:700}
.btn-highlight:hover{background:#F2B92A;transform:translateY(-1px)}
.btn-light{background:#fff;color:var(--c-ink);border-color:var(--c-line)}
.btn-light:hover{border-color:var(--c-primary);color:var(--c-primary)}
.btn-lg{padding:15px 30px;font-size:16px;border-radius:var(--r-pill)}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{
  outline:2px solid var(--c-primary);outline-offset:3px;
}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;line-height:1;
  padding:6px 12px;border-radius:var(--r-pill);
  background:var(--c-primary-soft);color:var(--c-primary);
}
.badge-second{background:var(--c-second-soft);color:var(--c-second)}
.badge-accent{background:#FFF4D6;color:#8A6100}
.tag{
  display:inline-block;font-size:12px;font-weight:600;
  padding:4px 10px;border-radius:6px;
  background:var(--c-alt);color:var(--c-muted);
}

.card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
  transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.card-hover:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px);border-color:#DED7CB}
.media{overflow:hidden;border-radius:var(--r-img);background:var(--c-alt)}
.ratio-16x10{aspect-ratio:16/10}
.ratio-16x9{aspect-ratio:16/9}
.ratio-4x3{aspect-ratio:4/3}
.media img{width:100%;height:100%;object-fit:cover}
.card-title{transition:color .18s ease}
.card-hover:hover .card-title{color:var(--c-primary)}
.clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.clamp-3{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.link-underline{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px}
.arrow-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary)}
.arrow-link:hover{color:var(--c-primary-dark)}
.arrow-link svg{transition:transform .18s ease}
.arrow-link:hover svg{transform:translateX(3px)}

.pain-item{
  display:flex;gap:14px;padding:18px 0;border-bottom:1px solid var(--c-line);
}
.pain-item:last-child{border-bottom:0}
.pain-index{
  flex:none;width:28px;height:28px;border-radius:8px;
  background:var(--c-primary-soft);color:var(--c-primary);
  font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;
}

.stat-cell{border-top:2px solid rgba(255,201,60,.5);padding-top:20px}
.stat-num{
  font-size:clamp(30px,4.6vw,42px);font-weight:800;line-height:1;color:var(--c-accent);
  letter-spacing:.02em;
}
.stat-unit{font-size:15px;font-weight:600;color:#fff;margin-left:6px}
.stat-desc{color:#A6ABB5;font-size:14px;margin-top:10px}

.quote-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--shadow-card);
}
.avatar{
  width:44px;height:44px;border-radius:var(--r-pill);flex:none;
  background:var(--c-primary-soft);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;
}
.stars{color:var(--c-accent);font-size:14px;letter-spacing:2px}

.faq-item{border-bottom:1px solid var(--c-line)}
.faq-q{
  width:100%;background:none;border:0;text-align:left;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0;font-size:16px;font-weight:600;color:var(--c-ink);
  transition:color .18s ease;
}
.faq-q:hover{color:var(--c-primary)}
.faq-icon{
  flex:none;width:24px;height:24px;position:relative;border-radius:6px;
  background:var(--c-primary-soft);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  background:var(--c-primary);border-radius:2px;transition:transform .18s ease,opacity .18s ease;
}
.faq-icon::before{width:12px;height:2px}
.faq-icon::after{width:2px;height:12px}
.faq-item.open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-a{display:none;padding:0 0 20px;font-size:15px;line-height:1.85;color:var(--c-muted);max-width:820px}
.faq-item.open .faq-a{display:block}

.form-label{display:block;font-size:13px;font-weight:600;color:var(--c-muted);margin-bottom:6px}
.input{
  width:100%;min-height:44px;padding:11px 14px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-btn);
  font-size:15px;color:var(--c-text);transition:border-color .18s ease,box-shadow .18s ease;
}
.input::placeholder{color:var(--c-faint)}
.input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px var(--c-primary-soft)}
textarea.input{min-height:120px;resize:vertical;line-height:1.7}
.form-note{font-size:12px;color:var(--c-faint);margin-top:10px;line-height:1.7}
.form-ok{
  display:none;margin-top:14px;padding:12px 14px;border-radius:var(--r-btn);
  background:var(--c-second-soft);color:var(--c-second);font-size:14px;font-weight:600;
}
.form-ok.show{display:block}

.empty-card{
  min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  background:#fff;border:1px dashed var(--c-line);border-radius:var(--r-card);
  color:var(--c-muted);text-align:center;padding:32px 20px;
}
.empty-icon{
  width:52px;height:52px;border-radius:var(--r-pill);background:var(--c-alt);
  display:flex;align-items:center;justify-content:center;color:var(--c-faint);
}
.skeleton{background:linear-gradient(90deg,#EFEBE4 25%,#F7F4EF 37%,#EFEBE4 63%);background-size:400% 100%;animation:sk 1.4s ease infinite;border-radius:8px}
@keyframes sk{0%{background-position:100% 50%}100%{background-position:0 50%}}

.footer-link{color:#A6ABB5;font-size:14px;transition:color .18s ease}
.footer-link:hover{color:var(--c-accent)}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px}
.social-dot{
  width:36px;height:36px;border-radius:var(--r-pill);background:#23262D;color:#A6ABB5;
  display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:600;
  transition:background-color .18s ease,color .18s ease;
}
.social-dot:hover{background:var(--c-primary);color:#fff}

.nav-bar{
  position:sticky;top:0;z-index:50;
  background:rgba(250,248,245,.92);
  backdrop-filter:saturate(160%) blur(8px);
  border-bottom:1px solid transparent;
  transition:background-color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.nav-bar.scrolled{background:#fff;border-bottom-color:var(--c-line);box-shadow:0 4px 16px rgba(21,23,28,.06)}
.nav-logo-mark{
  width:24px;height:24px;border-radius:7px;flex:none;
  background:var(--c-primary);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:800;
}
.nav-link{
  position:relative;font-size:16px;font-weight:500;color:var(--c-text);
  padding:6px 0;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:3px;border-radius:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.nav-link:hover{color:var(--c-primary)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--c-primary);font-weight:600}
.nav-link.active::after{transform:scaleX(1)}
.nav-search{
  display:flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-pill);
  padding:7px 14px;width:210px;transition:border-color .18s ease,box-shadow .18s ease;
}
.nav-search:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 3px var(--c-primary-soft)}
.nav-search input{border:0;outline:none;background:transparent;font-size:14px;width:100%;min-height:26px}
.nav-search input::placeholder{color:var(--c-faint)}
.icon-btn{
  width:44px;height:44px;border-radius:var(--r-btn);border:1px solid var(--c-line);
  background:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;
  transition:border-color .18s ease,color .18s ease;
}
.icon-btn:hover{border-color:var(--c-primary);color:var(--c-primary)}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(340px,86vw);z-index:70;
  background:#fff;transform:translateX(100%);transition:transform .28s ease;
  padding:24px 22px 32px;overflow-y:auto;
}
.drawer.open{transform:translateX(0)}
.drawer-mask{
  position:fixed;inset:0;background:rgba(21,23,28,.45);z-index:60;opacity:0;pointer-events:none;
  transition:opacity .28s ease;
}
.drawer-mask.open{opacity:1;pointer-events:auto}
body.locked{overflow:hidden}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 4px;font-size:16px;font-weight:500;border-bottom:1px solid var(--c-line);
}
.drawer-link.active{color:var(--c-primary);font-weight:600}

.hero-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(115deg,rgba(232,80,30,.06) 0 12px,transparent 12px 26px);
  opacity:.5;pointer-events:none;
}
.grid-deco{
  position:absolute;inset:0;pointer-events:none;opacity:.06;
  background-image:linear-gradient(to right,#15171C 1px,transparent 1px),linear-gradient(to bottom,#15171C 1px,transparent 1px);
  background-size:44px 44px;
}
.solution-row{display:grid;gap:28px;align-items:center}
@media (min-width:1024px){
  .solution-row{grid-template-columns:1fr 1fr;gap:56px}
  .solution-row.reverse .solution-media{order:-1}
}
.prose-cn{max-width:760px;font-size:16px;line-height:1.9;color:var(--c-text)}
.prose-cn h2{font-size:clamp(20px,2.4vw,26px);margin-top:24px;margin-bottom:12px;padding-left:14px;border-left:4px solid var(--c-primary)}
.prose-cn blockquote{
  margin:20px 0;padding:16px 18px;background:var(--c-primary-soft);
  border-left:4px solid var(--c-primary);border-radius:0 var(--r-img) var(--r-img) 0;font-style:normal;color:var(--c-text);
}
.crumbs{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--c-muted);flex-wrap:wrap}
.crumbs li{display:flex;align-items:center;gap:8px}
.crumbs li::after{content:"/";color:var(--c-faint)}
.crumbs li:last-child::after{content:""}
.crumbs a:hover{color:var(--c-primary)}
.crumbs .current{color:var(--c-faint)}
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
table.data-table{width:100%;min-width:560px;border-collapse:collapse;font-size:15px;background:#fff;border-radius:var(--r-card);overflow:hidden}
table.data-table th,table.data-table td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--c-line)}
table.data-table th{background:var(--c-primary-soft);color:var(--c-ink);font-weight:700;font-size:14px}
table.data-table tbody tr:last-child td{border-bottom:0}
table.data-table tbody tr:hover{background:#FCFAF7}
.timeline{position:relative;padding-left:28px}
.timeline::before{content:"";position:absolute;left:9px;top:6px;bottom:6px;width:2px;background:var(--c-line)}
.timeline-item{position:relative;padding-bottom:26px}
.timeline-item:last-child{padding-bottom:0}
.timeline-item::before{
  content:"";position:absolute;left:-28px;top:6px;width:20px;height:20px;border-radius:var(--r-pill);
  background:#fff;border:2px solid var(--c-primary);
}
.timeline-num{
  position:absolute;left:-23px;top:9px;font-size:10px;font-weight:700;color:var(--c-primary);
}
@media (max-width:1023px){.mobile-stack-order{order:0}}

/* roulang page: article */
:root{
  --c-primary:#E8501E;
  --c-primary-dark:#C43D12;
  --c-primary-soft:#FDEDE6;
  --c-field:#0F7A5A;
  --c-field-soft:#E4F2EC;
  --c-volt:#FFC93C;
  --c-ink:#15171C;
  --c-text:#1F2229;
  --c-muted:#5B616E;
  --c-faint:#8D93A0;
  --c-bg:#FAF8F5;
  --c-bg-alt:#F2EFE9;
  --c-line:#E6E1D8;
  --c-white:#FFFFFF;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh-card:0 1px 2px rgba(21,23,28,.04), 0 8px 24px rgba(21,23,28,.06);
  --sh-hover:0 12px 32px rgba(21,23,28,.10);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
ul,ol{margin:0;padding:0}
h1,h2,h3,h4,p{margin:0}
body.no-scroll{overflow:hidden}

.container-x{max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
@media (min-width:1024px){.container-x{padding-left:32px;padding-right:32px}}

/* 导航 */
.nav-bar{
  position:sticky;top:0;z-index:60;
  background:rgba(250,248,245,.94);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid transparent;
  transition:background .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.nav-bar.is-scrolled{background:#fff;border-bottom-color:var(--c-line);box-shadow:0 4px 18px rgba(21,23,28,.06)}
.nav-logo-mark{
  width:32px;height:32px;border-radius:10px;
  background:linear-gradient(135deg,var(--c-primary),#F4794B);
  color:#fff;font-weight:800;font-size:16px;
  display:inline-flex;align-items:center;justify-content:center;
  flex:0 0 auto;
}
.nav-link{position:relative;font-size:16px;font-weight:500;color:var(--c-muted);padding:6px 0;transition:color .18s ease}
.nav-link:hover{color:var(--c-primary)}
.nav-link.active{color:var(--c-primary);font-weight:600}
.nav-link.active::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:3px;border-radius:2px;background:var(--c-primary)}
.nav-search{
  display:flex;align-items:center;gap:8px;height:40px;width:220px;
  padding:0 14px;border-radius:999px;background:#fff;
  border:1px solid var(--c-line);transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search input{border:0;outline:0;background:transparent;width:100%;font-size:14px}
.nav-search input::placeholder{color:var(--c-faint)}
.nav-search:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 3px var(--c-primary-soft)}
.icon-btn{
  width:44px;height:44px;border-radius:var(--r-btn);background:#fff;border:1px solid var(--c-line);
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;color:var(--c-ink);
  transition:border-color .18s ease,color .18s ease;
}
.icon-btn:hover{border-color:var(--c-primary);color:var(--c-primary)}
.icon-btn:focus-visible{outline:2px solid var(--c-primary);outline-offset:3px}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn:focus-visible{outline:2px solid var(--c-primary);outline-offset:3px}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-dark);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-soft)}
.btn-highlight{background:var(--c-volt);color:var(--c-ink);box-shadow:0 4px 14px rgba(255,201,60,.35)}
.btn-highlight:hover{background:#F5BC25;transform:translateY(-1px)}

/* 徽标与标签 */
.badge{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;font-size:12.5px;font-weight:600;line-height:1}
.badge-primary{background:var(--c-primary-soft);color:var(--c-primary)}
.badge-field{background:var(--c-field-soft);color:var(--c-field)}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  background:#fff;border:1px solid var(--c-line);font-size:13px;font-weight:600;color:var(--c-muted);
  transition:border-color .18s ease,color .18s ease,background .18s ease;
}
.tag:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-soft)}

/* 卡片 */
.card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-card);overflow:hidden;
  transition:box-shadow .22s ease,transform .22s ease,border-color .22s ease;
}
.card:hover{box-shadow:var(--sh-hover);transform:translateY(-3px);border-color:#DAD4C8}
.card:focus-visible{outline:2px solid var(--c-primary);outline-offset:3px}

/* 区块 */
.section{padding-top:56px;padding-bottom:56px}
@media (min-width:640px){.section{padding-top:72px;padding-bottom:72px}}
@media (min-width:1024px){.section{padding-top:96px;padding-bottom:96px}}
.section-ink{background:var(--c-ink);color:#fff}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:20px}
.section-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:600;color:var(--c-primary);letter-spacing:.02em}
.section-eyebrow::before{content:"";width:4px;height:14px;border-radius:2px;background:var(--c-primary);display:inline-block}
.section-title{font-size:clamp(22px,3vw,32px);font-weight:800;line-height:1.3;color:var(--c-ink);margin-top:8px}

/* 文章头部 */
.article-hero{padding-top:24px;padding-bottom:4px}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;list-style:none;font-size:14px;color:var(--c-faint)}
.breadcrumb li{display:flex;align-items:center}
.breadcrumb li+li::before{content:"/";margin:0 8px;color:#C9C3B8}
.breadcrumb a{color:var(--c-muted)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb li[aria-current="page"]{color:var(--c-muted);max-width:min(560px,72vw);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-title{
  font-size:clamp(26px,3.6vw,40px);font-weight:800;line-height:1.3;
  color:var(--c-ink);letter-spacing:0;margin:14px 0 16px;max-width:860px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;font-size:14px;color:var(--c-faint)}
.article-meta .meta-divider{width:1px;height:14px;background:var(--c-line);display:inline-block}
.meta-share{display:inline-flex;align-items:center;gap:8px}
.meta-share .share-dot{
  width:32px;height:32px;border-radius:999px;border:1px solid var(--c-line);background:#fff;
  display:inline-flex;align-items:center;justify-content:center;color:var(--c-muted);
  transition:border-color .18s ease,color .18s ease;
}
.meta-share .share-dot:hover{border-color:var(--c-primary);color:var(--c-primary)}
.cover-16x9{
  position:relative;width:100%;aspect-ratio:16/9;border-radius:var(--r-img);
  overflow:hidden;background:var(--c-bg-alt);border:1px solid var(--c-line);margin-top:26px;
}
.cover-16x9 img{width:100%;height:100%;object-fit:cover}
.cover-fallback{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  font-size:64px;font-weight:800;color:rgba(232,80,30,.16);letter-spacing:.1em;
}

/* 文章主体布局 */
.article-layout{display:grid;gap:40px}
@media (min-width:1024px){
  .article-layout{grid-template-columns:minmax(0,760px) 260px;gap:48px;justify-content:center}
}
.article-side{display:flex;flex-direction:column;gap:20px}
@media (min-width:1024px){
  .article-side{position:sticky;top:92px;align-self:start}
}
.side-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:18px 18px 16px;box-shadow:var(--sh-card)}
.side-title{font-size:14px;font-weight:700;color:var(--c-ink);margin-bottom:12px;display:flex;align-items:center;gap:8px}
.side-title::before{content:"";width:4px;height:14px;border-radius:2px;background:var(--c-primary)}
.toc-list{list-style:none;display:flex;flex-direction:column;gap:8px}
.toc-list a{
  display:block;font-size:14px;line-height:1.6;color:var(--c-muted);
  padding-left:12px;border-left:2px solid var(--c-line);
  transition:color .18s ease,border-color .18s ease;
}
.toc-list a:hover,.toc-list a.is-active{color:var(--c-primary);border-left-color:var(--c-primary)}
.toc-empty{font-size:13px;color:var(--c-faint);line-height:1.7;display:none}
.side-links{list-style:none;display:flex;flex-direction:column;gap:10px}
.side-links a{font-size:14px;color:var(--c-muted);display:inline-flex;align-items:center;gap:8px;transition:color .18s ease}
.side-links a::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--c-field-soft)}
.side-links a:hover{color:var(--c-primary)}

/* 正文排版 */
.prose-cn{font-size:16.5px;line-height:1.9;color:var(--c-text);max-width:760px;text-align:left;word-break:normal}
.prose-cn p{margin:0 0 1.15em}
.prose-cn h2{
  position:relative;font-size:clamp(20px,2.4vw,26px);font-weight:800;line-height:1.35;
  color:var(--c-ink);margin:34px 0 14px;padding-left:14px;letter-spacing:0;
}
.prose-cn h2::before{content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;border-radius:2px;background:var(--c-primary)}
.prose-cn h3{font-size:18px;font-weight:700;line-height:1.45;color:var(--c-ink);margin:24px 0 10px}
.prose-cn h4{font-size:16px;font-weight:700;color:var(--c-ink);margin:20px 0 8px}
.prose-cn h2:first-child,.prose-cn h3:first-child,.prose-cn h4:first-child{margin-top:0}
.prose-cn ul,.prose-cn ol{margin:0 0 1.15em;padding-left:1.4em}
.prose-cn li{margin-bottom:.5em}
.prose-cn blockquote{
  margin:0 0 1.15em;padding:16px 20px;background:var(--c-primary-soft);
  border-left:4px solid var(--c-primary);border-radius:0 10px 10px 0;
  font-style:normal;color:var(--c-text);
}
.prose-cn blockquote p:last-child{margin-bottom:0}
.prose-cn a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px}
.prose-cn a:hover{color:var(--c-primary-dark)}
.prose-cn img{border-radius:var(--r-img);margin:1.2em 0;height:auto}
.prose-cn table{
  display:block;width:100%;max-width:100%;overflow-x:auto;
  border-collapse:collapse;margin:0 0 1.2em;font-size:15px;
}
.prose-cn th,.prose-cn td{border:1px solid var(--c-line);padding:10px 14px;text-align:left;white-space:nowrap}
.prose-cn th{background:var(--c-primary-soft);font-weight:700;color:var(--c-ink)}
.prose-cn tbody tr:nth-child(even) td{background:#FBF9F6}
.prose-cn code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:14.5px;background:var(--c-bg-alt);padding:2px 6px;border-radius:6px;
}
.prose-cn pre{
  background:var(--c-ink);color:#EDEEF1;padding:16px 18px;border-radius:12px;
  overflow-x:auto;margin:0 0 1.2em;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:14px;line-height:1.7;
}
.prose-cn pre code{background:transparent;padding:0;color:inherit;font-size:14px}
.prose-cn hr{border:0;border-top:1px solid var(--c-line);margin:28px 0}
.prose-cn strong{font-weight:700}

/* 文末 */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:36px;padding-top:22px;border-top:1px solid var(--c-line)}
.related-block{margin-top:40px}
.block-title{font-size:20px;font-weight:800;color:var(--c-ink);margin-bottom:16px}
.related-grid{display:grid;gap:20px}
@media (min-width:640px){.related-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.mini-card{
  display:block;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-card);
  transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.mini-card:hover{box-shadow:var(--sh-hover);transform:translateY(-3px);border-color:#DAD4C8}
.mini-card:focus-visible{outline:2px solid var(--c-primary);outline-offset:3px}
.mini-cover{position:relative;aspect-ratio:16/10;background:var(--c-bg-alt);overflow:hidden}
.mini-cover img{width:100%;height:100%;object-fit:cover}
.mini-body{padding:14px}
.mini-body h3{font-size:15px;font-weight:700;line-height:1.5;color:var(--c-ink);margin-bottom:6px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.mini-card:hover .mini-body h3{color:var(--c-primary)}
.mini-body span{font-size:12.5px;color:var(--c-faint)}
.back-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px}

/* 空态 */
.empty-card{
  background:#fff;border:1px dashed #D8D2C6;border-radius:var(--r-card);
  padding:52px 24px;text-align:center;box-shadow:var(--sh-card);
}
.empty-icon{
  width:56px;height:56px;border-radius:16px;background:var(--c-primary-soft);color:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.empty-card h2{font-size:20px;font-weight:800;color:var(--c-ink);margin-bottom:10px}
.empty-card p{font-size:15px;color:var(--c-muted);max-width:420px;margin:0 auto 20px}

/* 底部转化条 */
.cta-soft{background:var(--c-primary-soft);border-top:1px solid #F6DCD0;padding-top:44px;padding-bottom:44px}
.cta-soft h2{font-size:clamp(20px,2.6vw,26px);font-weight:800;color:var(--c-ink);margin-bottom:8px}
.cta-soft p{font-size:15px;color:var(--c-muted);max-width:520px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* 页脚 */
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-link{font-size:14px;color:#A6ABB5;transition:color .18s ease}
.footer-link:hover{color:var(--c-volt)}
.social-dot{
  width:34px;height:34px;border-radius:10px;background:#22252C;color:#A6ABB5;
  display:inline-flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;
  transition:background .18s ease,color .18s ease;
}
.social-dot:hover{background:var(--c-volt);color:var(--c-ink)}

/* 移动抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(21,23,28,.45);z-index:80;
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;
}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:84%;max-width:340px;background:#fff;z-index:90;
  transform:translateX(102%);transition:transform .28s ease;padding:20px;overflow-y:auto;
  box-shadow:-12px 0 40px rgba(21,23,28,.18);
}
.drawer.open{transform:translateX(0)}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-top:20px}
.drawer-nav a{
  display:flex;align-items:center;min-height:48px;padding:0 12px;border-radius:10px;
  font-size:16px;font-weight:600;color:var(--c-ink);transition:background .18s ease,color .18s ease;
}
.drawer-nav a:hover{background:var(--c-primary-soft);color:var(--c-primary)}
.drawer-nav a.active{color:var(--c-primary);background:var(--c-primary-soft)}
.drawer-actions{display:flex;flex-direction:column;gap:12px;margin-top:22px;padding-top:20px;border-top:1px solid var(--c-line)}

.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* roulang page: category1 */
:root{
  --c-primary:#E8501E;
  --c-primary-dark:#C43D12;
  --c-primary-soft:#FDEDE6;
  --c-second:#0F7A5A;
  --c-second-soft:#E4F2EC;
  --c-accent:#FFC93C;
  --c-ink:#15171C;
  --c-body:#1F2229;
  --c-muted:#5B616E;
  --c-faint:#8D93A0;
  --c-bg:#FAF8F5;
  --c-alt:#F2EFE9;
  --c-line:#E6E1D8;
  --c-white:#FFFFFF;

  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;

  --sh-card:0 1px 2px rgba(21,23,28,.04), 0 8px 24px rgba(21,23,28,.06);
  --sh-card-hover:0 12px 32px rgba(21,23,28,.10);
  --sh-nav:0 2px 12px rgba(21,23,28,.06);

  --sec-pad:56px;
}
@media (min-width:640px){ :root{ --sec-pad:72px; } }
@media (min-width:1024px){ :root{ --sec-pad:96px; } }

*,*::before,*::after{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; scroll-padding-top:88px; }
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-body);
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.drawer-open{ overflow:hidden; }
img{ display:block; max-width:100%; height:auto; border-radius:var(--r-img); }
a{ color:inherit; text-decoration:none; }
button,input,textarea,select{ font:inherit; color:inherit; }
ul,ol{ margin:0; padding:0; }
h1,h2,h3,h4{ margin:0; color:var(--c-ink); letter-spacing:0; }
p{ margin:0 0 1.15em; }
p:last-child{ margin-bottom:0; }
strong{ font-weight:700; }

.container-x{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:1024px){
  .container-x{ padding-left:32px; padding-right:32px; }
}
.section{ padding-top:var(--sec-pad); padding-bottom:var(--sec-pad); }
.section-alt{ background:var(--c-alt); }
.section-ink{ background:var(--c-ink); color:#fff; }

/* ---------- 导航 ---------- */
.nav-bar{
  position:sticky; top:0; z-index:50;
  background:rgba(250,248,245,.94);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background-color .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.nav-bar.is-scrolled{
  background:#fff;
  border-bottom-color:var(--c-line);
  box-shadow:var(--sh-nav);
}
.nav-logo-mark{
  width:34px; height:34px; flex:none;
  border-radius:9px;
  background:var(--c-primary);
  color:#fff;
  display:inline-flex; align-items:center; justify-content:center;
  font-size:16px; font-weight:800; line-height:1;
}
.nav-link{
  position:relative;
  display:inline-flex; align-items:center;
  min-height:44px;
  font-size:16px; font-weight:500;
  color:var(--c-body);
  transition:color .18s ease;
}
.nav-link:hover{ color:var(--c-primary); }
.nav-link:focus-visible{ outline:2px solid var(--c-primary); outline-offset:3px; border-radius:6px; }
.nav-link.active{ color:var(--c-primary); }
.nav-link.active::after{
  content:""; position:absolute; left:0; right:0; bottom:8px;
  height:3px; border-radius:2px; background:var(--c-primary);
}
.nav-search{
  display:flex; align-items:center; gap:8px;
  height:40px; width:220px; padding:0 14px;
  background:#fff; border:1px solid var(--c-line); border-radius:999px;
  transition:border-color .18s ease, box-shadow .18s ease;
}
.nav-search:focus-within{ border-color:var(--c-primary); box-shadow:0 0 0 3px var(--c-primary-soft); }
.nav-search input{
  flex:1; min-width:0; height:100%;
  border:0; outline:0; background:transparent;
  font-size:14px; color:var(--c-body);
}
.nav-search input::placeholder{ color:var(--c-faint); }
.icon-btn{
  width:44px; height:44px; flex:none;
  display:inline-flex; align-items:center; justify-content:center;
  border:1px solid var(--c-line); border-radius:var(--r-btn);
  background:#fff; color:var(--c-ink); cursor:pointer;
  transition:border-color .18s ease, color .18s ease, background-color .18s ease;
}
.icon-btn:hover{ border-color:var(--c-primary); color:var(--c-primary); }
.icon-btn:focus-visible{ outline:2px solid var(--c-primary); outline-offset:2px; }

/* 移动抽屉 */
.drawer-mask{
  position:fixed; inset:0; z-index:60;
  background:rgba(21,23,28,.45);
  opacity:0; pointer-events:none;
  transition:opacity .22s ease;
}
.drawer-mask.show{ opacity:1; pointer-events:auto; }
.drawer{
  position:fixed; top:0; right:0; z-index:70;
  width:min(88vw,360px); height:100%;
  padding:20px;
  background:#fff;
  display:flex; flex-direction:column; gap:18px;
  overflow-y:auto;
  transform:translateX(100%);
  transition:transform .26s ease;
  box-shadow:-12px 0 32px rgba(21,23,28,.12);
}
.drawer.show{ transform:translateX(0); }
@media (min-width:1024px){
  .drawer, .drawer-mask{ display:none !important; }
}
.drawer-link{
  display:flex; align-items:center;
  min-height:48px; padding:0 4px;
  font-size:16px; font-weight:500; color:var(--c-body);
  border-bottom:1px solid var(--c-line);
  transition:color .18s ease;
}
.drawer-link:hover, .drawer-link.active{ color:var(--c-primary); }

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  min-height:48px; padding:12px 24px;
  border:1px solid transparent; border-radius:var(--r-btn);
  font-size:16px; font-weight:700; line-height:1;
  cursor:pointer; text-align:center;
  transition:background-color .18s ease, color .18s ease, border-color .18s ease, transform .18s ease, box-shadow .18s ease;
}
.btn:focus-visible{ outline:2px solid var(--c-primary); outline-offset:3px; }
.btn-primary{ background:var(--c-primary); color:#fff; }
.btn-primary:hover{ background:var(--c-primary-dark); transform:translateY(-1px); box-shadow:0 10px 22px rgba(232,80,30,.22); }
.btn-primary:active{ transform:translateY(0); box-shadow:none; }
.btn-ghost{ background:#fff; color:var(--c-primary); border-color:var(--c-primary); }
.btn-ghost:hover{ background:var(--c-primary-soft); transform:translateY(-1px); }
.btn-ghost:active{ transform:translateY(0); }
.btn-highlight{ background:var(--c-accent); color:var(--c-ink); }
.btn-highlight:hover{ background:#F2B921; transform:translateY(-1px); }
.btn-highlight:active{ transform:translateY(0); }
.btn-sm{ min-height:40px; padding:8px 16px; font-size:14px; }

/* ---------- 标签 / 徽标 ---------- */
.tag{
  display:inline-flex; align-items:center; gap:6px;
  padding:5px 12px; border-radius:999px;
  font-size:12.5px; font-weight:600; line-height:1.5;
}
.tag-primary{ background:var(--c-primary-soft); color:var(--c-primary); }
.tag-second{ background:var(--c-second-soft); color:var(--c-second); }
.tag-line{ background:#fff; color:var(--c-muted); border:1px solid var(--c-line); }

/* ---------- 面包屑 ---------- */
.breadcrumb ol{
  display:flex; flex-wrap:wrap; align-items:center;
  list-style:none; padding:0; margin:0 0 20px;
  font-size:14px; color:var(--c-muted);
}
.breadcrumb li{ display:inline-flex; align-items:center; }
.breadcrumb li + li::before{
  content:"/"; margin:0 8px; color:var(--c-faint);
}
.breadcrumb a{ transition:color .18s ease; }
.breadcrumb a:hover{ color:var(--c-primary); }
.breadcrumb .current{ color:var(--c-muted); }

/* ---------- 窄幅 Hero ---------- */
.hero-narrow{
  position:relative;
  padding:28px 0 48px;
  background:linear-gradient(180deg,#FFFFFF 0%, var(--c-bg) 100%);
  overflow:hidden;
}
.hero-narrow::before{
  content:"";
  position:absolute; inset:0;
  background-image:repeating-linear-gradient(115deg, rgba(232,80,30,.9) 0 1px, transparent 1px 22px);
  opacity:.05;
  pointer-events:none;
}
.hero-narrow > .container-x{ position:relative; z-index:1; }
.hero-grid{ display:grid; gap:32px; }
@media (min-width:1024px){
  .hero-grid{ grid-template-columns:55fr 45fr; gap:48px; align-items:center; }
}
.hero-media{ margin:0; }
.hero-media img{
  width:100%; aspect-ratio:16/9; object-fit:cover;
  border-radius:var(--r-card);
  box-shadow:var(--sh-card);
}
@media (max-width:1023px){
  .hero-media{ order:-1; }
}
.hero-title{
  font-size:clamp(28px,4.6vw,46px);
  font-weight:800; line-height:1.25;
  margin:14px 0 14px;
}
.hero-sub{
  font-size:clamp(15px,1.6vw,17px);
  line-height:1.8; color:var(--c-muted);
  max-width:560px; margin-bottom:24px;
}
.trust-row{
  display:flex; flex-wrap:wrap; gap:10px 22px;
  margin-top:24px; padding-top:20px;
  border-top:1px solid var(--c-line);
}
.trust-item{
  display:inline-flex; align-items:center; gap:8px;
  font-size:14px; font-weight:600; color:var(--c-muted);
}
.trust-dot{
  width:8px; height:8px; border-radius:3px; background:var(--c-second); flex:none;
}

/* ---------- 目录 + 正文 ---------- */
.layout-toc{ display:grid; gap:28px; }
@media (min-width:1024px){
  .layout-toc{ grid-template-columns:240px minmax(0,1fr); gap:48px; }
}
.toc-card{
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-card);
  padding:18px;
}
@media (min-width:1024px){
  .toc{ position:sticky; top:96px; align-self:start; }
}
.toc-title{
  font-size:13px; font-weight:700; color:var(--c-faint);
  letter-spacing:.04em; margin-bottom:12px;
}
.toc-link{
  display:block;
  padding:9px 0 9px 14px;
  border-left:2px solid var(--c-line);
  font-size:14.5px; color:var(--c-muted);
  transition:color .18s ease, border-color .18s ease, background-color .18s ease;
}
.toc-link:hover{ color:var(--c-primary); border-left-color:var(--c-primary); }
.toc-link.active{ color:var(--c-primary); border-left-color:var(--c-primary); font-weight:600; }
@media (max-width:1023px){
  .toc-card{ display:flex; gap:8px; overflow-x:auto; padding:12px; -webkit-overflow-scrolling:touch; }
  .toc-title{ display:none; }
  .toc-link{
    white-space:nowrap; flex:none;
    border-left:0; border:1px solid var(--c-line);
    border-radius:999px; padding:8px 14px;
    background:var(--c-bg); min-height:40px; display:inline-flex; align-items:center;
  }
  .toc-link.active{ background:var(--c-primary-soft); border-color:var(--c-primary-soft); }
}

.prose-cn{ max-width:820px; }
.prose-cn h2{
  position:relative;
  font-size:clamp(22px,3vw,30px);
  font-weight:800; line-height:1.3;
  padding-left:15px;
  margin:0 0 18px;
}
.prose-cn h2::before{
  content:""; position:absolute; left:0; top:.2em; bottom:.2em;
  width:4px; border-radius:2px; background:var(--c-primary);
}
.prose-cn h3{
  font-size:18px; font-weight:700; line-height:1.4;
  margin:0 0 10px;
}
.prose-cn p{ line-height:1.9; color:var(--c-body); }
.content-block + .content-block{ margin-top:52px; }
@media (min-width:1024px){
  .content-block + .content-block{ margin-top:64px; }
}

.step-list{ list-style:none; padding:0; margin:22px 0 0; }
.step-item{
  display:flex; gap:16px;
  padding:18px 0;
  border-bottom:1px solid var(--c-line);
}
.step-item:first-child{ padding-top:0; }
.step-item:last-child{ border-bottom:0; padding-bottom:0; }
.step-num{
  flex:none; width:34px; height:34px;
  border-radius:9px; background:var(--c-primary-soft); color:var(--c-primary);
  display:inline-flex; align-items:center; justify-content:center;
  font-size:15px; font-weight:700;
  font-variant-numeric:tabular-nums;
}
.step-body h3{ margin-bottom:6px; }
.step-body p{ font-size:15px; color:var(--c-muted); margin:0; line-height:1.8; }

.check-list{ list-style:none; padding:0; margin:20px 0 0; display:grid; gap:12px; }
.check-list li{
  display:flex; gap:12px; align-items:flex-start;
  background:#fff; border:1px solid var(--c-line); border-radius:var(--r-card);
  padding:16px 18px;
  box-shadow:var(--sh-card);
}
.check-mark{
  flex:none; width:22px; height:22px; margin-top:3px;
  border-radius:7px; background:var(--c-second-soft); color:var(--c-second);
  display:inline-flex; align-items:center; justify-content:center;
  font-size:12px; font-weight:800;
}
.check-list strong{ display:block; font-size:15.5px; color:var(--c-ink); margin-bottom:2px; }
.check-list span.txt{ font-size:14.5px; color:var(--c-muted); line-height:1.75; }

/* 表格 */
.table-scroll{
  overflow-x:auto; -webkit-overflow-scrolling:touch;
  background:#fff; border:1px solid var(--c-line); border-radius:var(--r-card);
  box-shadow:var(--sh-card);
}
table.cmp{ width:100%; min-width:660px; border-collapse:collapse; font-size:15px; }
table.cmp th{
  background:var(--c-primary-soft); color:var(--c-ink);
  font-weight:700; text-align:left; white-space:nowrap;
  padding:14px 18px; border-bottom:1px solid var(--c-line);
}
table.cmp td{
  padding:14px 18px; border-bottom:1px solid var(--c-line);
  vertical-align:top; line-height:1.75; color:var(--c-body);
}
table.cmp tbody tr:last-child td{ border-bottom:0; }
table.cmp tbody tr{ transition:background-color .18s ease; }
table.cmp tbody tr:hover{ background:#FCFAF7; }

.tip-box{
  margin-top:24px;
  background:var(--c-primary-soft);
  border-left:4px solid var(--c-primary);
  border-radius:0 var(--r-card) var(--r-card) 0;
  padding:18px 20px;
  font-size:15px; line-height:1.85; color:var(--c-body);
}

/* FAQ */
.faq-list{ margin-top:20px; border-top:1px solid var(--c-line); }
.faq-item{ border-bottom:1px solid var(--c-line); }
.faq-q{
  width:100%; min-height:56px;
  display:flex; align-items:center; justify-content:space-between; gap:16px;
  padding:16px 2px;
  background:none; border:0; text-align:left; cursor:pointer;
  font-size:16px; font-weight:600; color:var(--c-ink);
  transition:color .18s ease;
}
.faq-q:hover{ color:var(--c-primary); }
.faq-q:focus-visible{ outline:2px solid var(--c-primary); outline-offset:2px; border-radius:6px; }
.faq-icon{ flex:none; width:20px; height:20px; color:var(--c-primary); transition:transform .18s ease; }
.faq-item.open .faq-icon{ transform:rotate(45deg); }
.faq-a{ max-height:0; overflow:hidden; transition:max-height .22s ease; }
.faq-a-inner{ padding:0 2px 18px; font-size:15px; line-height:1.85; color:var(--c-muted); }

/* CTA 通栏 */
.cta-band{
  background:var(--c-ink);
  border-radius:18px;
  padding:32px;
  display:flex; flex-wrap:wrap; align-items:center; justify-content:space-between; gap:24px;
}
@media (min-width:1024px){ .cta-band{ padding:44px 48px; } }
.cta-band h2{ color:#fff; font-size:clamp(20px,2.6vw,28px); font-weight:800; margin-bottom:10px; }
.cta-band p{ color:#A6ABB5; font-size:15px; margin:0; max-width:520px; }
.cta-band .btn-ghost{ background:transparent; color:#fff; border-color:rgba(255,255,255,.4); }
.cta-band .btn-ghost:hover{ background:rgba(255,255,255,.12); }

/* ---------- 页脚 ---------- */
.footer-title{ font-size:14px; font-weight:700; color:#fff; margin-bottom:18px; }
.footer-link{ font-size:14px; color:#A6ABB5; transition:color .18s ease; }
.footer-link:hover{ color:var(--c-accent); }
.footer-link:focus-visible{ outline:2px solid var(--c-accent); outline-offset:3px; border-radius:4px; }
.social-dot{
  width:36px; height:36px; border-radius:9px;
  background:#22252C; color:#A6ABB5;
  display:inline-flex; align-items:center; justify-content:center;
  font-size:13px; font-weight:600;
  transition:background-color .18s ease, color .18s ease, transform .18s ease;
}
.social-dot:hover{ background:var(--c-primary); color:#fff; transform:translateY(-2px); }

@media (max-width:1023px){
  .hero-title{ margin-top:12px; }
}
@media (max-width:639px){
  .cta-band{ padding:24px; }
  .cta-band .btn{ width:100%; }
  .trust-row{ gap:10px 16px; }
}

/* roulang page: category2 */
:root{
  --c-brand:#E8501E; --c-brand-deep:#C43D12; --c-brand-soft:#FDEDE6;
  --c-jade:#0F7A5A; --c-jade-soft:#E4F2EC;
  --c-volt:#FFC93C;
  --c-ink:#15171C; --c-body:#1F2229; --c-muted:#5B616E; --c-faint:#8D93A0;
  --c-paper:#FAF8F5; --c-alt:#F2EFE9; --c-line:#E6E1D8; --c-white:#FFFFFF;
  --r-card:14px; --r-btn:10px; --r-img:12px; --r-pill:999px;
  --sh-card:0 1px 2px rgba(21,23,28,.04), 0 8px 24px rgba(21,23,28,.06);
  --sh-hover:0 12px 32px rgba(21,23,28,.10);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--c-paper);color:var(--c-body);
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.85;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;letter-spacing:0;color:var(--c-ink);line-height:1.3;font-weight:800}
h1{font-size:clamp(26px,4.4vw,44px);line-height:1.25}
h2{font-size:clamp(22px,3vw,32px)}
h3{font-size:18px;font-weight:700;line-height:1.4}
h4{font-size:16px;font-weight:700}
p{margin:0 0 1.15em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:3px;border-radius:4px}
.num{font-weight:600;letter-spacing:.02em}

.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:640px){.container-x{padding:0 24px}}
@media (min-width:1024px){.container-x{padding:0 32px}}

.section{padding:56px 0}
@media (min-width:768px){.section{padding:72px 0}}
@media (min-width:1024px){.section{padding:96px 0}}
.section-alt{background:var(--c-alt)}
.section-ink{background:var(--c-ink);color:#fff}
.section-ink h2,.section-ink h3{color:#fff}

/* ===== 导航 ===== */
.nav-bar{
  position:sticky;top:0;z-index:50;
  background:rgba(250,248,245,.94);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background .22s,box-shadow .22s,border-color .22s;
}
.nav-bar.scrolled{background:#fff;border-bottom-color:var(--c-line);box-shadow:0 2px 14px rgba(21,23,28,.06)}
.nav-logo-mark{
  width:24px;height:24px;border-radius:7px;background:var(--c-brand);color:#fff;
  font-size:13px;font-weight:800;display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.nav-link{position:relative;display:inline-block;padding:22px 0;font-size:16px;font-weight:500;color:var(--c-muted);transition:color .18s}
.nav-link:hover{color:var(--c-brand)}
.nav-link.active{color:var(--c-brand)}
.nav-link.active::after{content:"";position:absolute;left:0;right:0;bottom:14px;height:3px;border-radius:2px;background:var(--c-brand)}
.nav-search{
  display:flex;align-items:center;gap:8px;height:40px;width:230px;padding:0 14px;
  background:var(--c-alt);border:1px solid var(--c-line);border-radius:var(--r-pill);
  transition:border-color .18s,background .18s,box-shadow .18s;
}
.nav-search input{border:0;background:transparent;outline:none;width:100%;font-size:14px;line-height:1}
.nav-search:focus-within{border-color:var(--c-brand);background:#fff;box-shadow:0 0 0 3px var(--c-brand-soft)}
.icon-btn{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:var(--r-btn);border:1px solid var(--c-line);background:#fff;color:var(--c-ink);
  cursor:pointer;transition:border-color .18s,color .18s,background .18s;
}
.icon-btn:hover{border-color:var(--c-brand);color:var(--c-brand)}

.overlay{position:fixed;inset:0;background:rgba(21,23,28,.45);z-index:60;opacity:0;visibility:hidden;transition:opacity .25s,visibility .25s}
.overlay.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(88vw,340px);z-index:70;background:#fff;
  padding:20px;overflow-y:auto;transform:translateX(100%);transition:transform .28s ease;
  box-shadow:-12px 0 32px rgba(21,23,28,.16);
}
.drawer.is-open{transform:translateX(0)}
body.menu-open{overflow:hidden;}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;border:1px solid transparent;cursor:pointer;
  transition:background-color .18s,color .18s,border-color .18s,transform .18s,box-shadow .18s;
}
.btn-primary{background:var(--c-brand);color:#fff}
.btn-primary:hover{background:var(--c-brand-deep);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--c-brand);color:var(--c-brand)}
.btn-ghost:hover{background:var(--c-brand-soft)}
.btn-highlight{background:var(--c-volt);color:var(--c-ink);border-color:#E7B323}
.btn-highlight:hover{background:#FFD75F;transform:translateY(-1px)}
.btn-white{background:#fff;color:var(--c-ink);border-color:var(--c-line)}
.btn-white:hover{border-color:var(--c-brand);color:var(--c-brand)}
.link-arrow{display:inline-flex;align-items:center;gap:4px;font-size:13px;font-weight:600;color:var(--c-brand);transition:color .18s}
.link-arrow:hover{color:var(--c-brand-deep)}

/* ===== 徽标与卡片 ===== */
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:var(--r-pill);font-size:12px;font-weight:600;line-height:1.6}
.badge-brand{background:var(--c-brand-soft);color:var(--c-brand-deep)}
.badge-jade{background:var(--c-jade-soft);color:var(--c-jade)}
.badge-volt{background:#FFF3D6;color:#8A6100}
.card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-card);
  transition:box-shadow .22s,transform .22s,border-color .22s;
}
.card:hover{box-shadow:var(--sh-hover);transform:translateY(-3px);border-color:#DED7CB}
.thumb{aspect-ratio:16/10;overflow:hidden;background:var(--c-alt);border-radius:var(--r-card) var(--r-card) 0 0}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.card:hover .thumb img{transform:scale(1.03)}
.item-card.is-hidden{display:none}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--c-brand-deep);background:var(--c-brand-soft);padding:5px 12px;border-radius:var(--r-pill)}
.title-rule{position:relative;padding-left:14px}
.title-rule::before{content:"";position:absolute;left:0;top:.35em;bottom:.35em;width:4px;border-radius:2px;background:var(--c-brand)}

/* ===== 面包屑 ===== */
.crumb{font-size:14px;color:var(--c-faint)}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumb li{display:inline-flex;align-items:center;gap:8px}
.crumb li+li::before{content:"/";color:var(--c-line)}
.crumb a{color:var(--c-muted);transition:color .18s}
.crumb a:hover{color:var(--c-brand)}
.crumb .current{color:var(--c-muted)}

/* ===== 页头区 ===== */
.page-head{
  position:relative;
  background-image:linear-gradient(rgba(250,248,245,.94),rgba(250,248,245,.98)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--c-line);
}
.head-stat{display:flex;flex-wrap:wrap;gap:28px 40px;margin-top:28px}
.head-stat .val{font-size:24px;font-weight:800;color:var(--c-brand-deep);line-height:1.2}
.head-stat .lab{font-size:13px;color:var(--c-muted);margin-top:2px}

/* ===== 筛选条 ===== */
.filter-bar{display:flex;gap:10px;overflow-x:auto;padding:4px 0 12px;scrollbar-width:none;-webkit-overflow-scrolling:touch}
.filter-bar::-webkit-scrollbar{display:none}
.filter-chip{
  flex:0 0 auto;min-height:44px;padding:8px 18px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);background:#fff;color:var(--c-muted);
  font-size:14px;font-weight:600;cursor:pointer;
  transition:background .18s,color .18s,border-color .18s,transform .18s;
}
.filter-chip:hover{border-color:var(--c-brand);color:var(--c-brand)}
.filter-chip.is-active{background:var(--c-brand);border-color:var(--c-brand);color:#fff}
.filter-chip:active{transform:scale(.98)}

/* ===== 时间轴 ===== */
.timeline{border-top:1px solid var(--c-line)}
.tl-item{display:grid;grid-template-columns:56px 1fr;gap:18px;padding:22px 0;border-bottom:1px dashed var(--c-line)}
@media (min-width:768px){.tl-item{grid-template-columns:72px 1fr;gap:26px;padding:26px 0}}
.tl-num{
  width:44px;height:44px;border-radius:var(--r-btn);background:var(--c-brand-soft);color:var(--c-brand-deep);
  display:inline-flex;align-items:center;justify-content:center;font-size:15px;font-weight:800;letter-spacing:.02em;
}
.tl-item p{color:var(--c-muted);font-size:15px;margin-top:8px}

/* ===== 图文区 ===== */
.split{display:grid;gap:32px;align-items:center}
@media (min-width:1024px){.split{grid-template-columns:1fr 1fr;gap:56px}}
.split-img{border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh-card);aspect-ratio:16/11;background:var(--c-alt)}
.split-img img{width:100%;height:100%;object-fit:cover}
.tick-list li{display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed var(--c-line);font-size:15px;color:var(--c-muted)}
.tick-list li:last-child{border-bottom:0}
.tick-list .tick{flex:0 0 auto;width:22px;height:22px;border-radius:50%;background:var(--c-jade-soft);color:var(--c-jade);display:inline-flex;align-items:center;justify-content:center;font-size:12px;font-weight:800;margin-top:3px}

/* ===== CTA ===== */
.cta-panel{
  background:var(--c-brand-soft);border:1px solid #F6D8CA;border-radius:var(--r-card);
  padding:32px 24px;
}
@media (min-width:768px){.cta-panel{padding:48px 44px}}
.trust-row{display:flex;flex-wrap:wrap;gap:20px 32px;margin-top:8px}
.trust-row .t{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--c-muted);font-weight:600}
.trust-dot{width:24px;height:24px;border-radius:50%;background:#fff;color:var(--c-brand);display:inline-flex;align-items:center;justify-content:center;font-size:12px;font-weight:800}

/* ===== 页脚 ===== */
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-link{font-size:14px;color:#A6ABB5;transition:color .18s}
.footer-link:hover{color:var(--c-volt)}
.social-dot{
  width:36px;height:36px;border-radius:10px;background:#22252C;color:#C9CDD6;
  display:inline-flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;
  transition:background .18s,color .18s,transform .18s;
}
.social-dot:hover{background:var(--c-brand);color:#fff;transform:translateY(-2px)}

/* ===== 表单 ===== */
.field-label{display:block;font-size:13px;color:var(--c-muted);margin-bottom:6px;font-weight:600}
.field{
  width:100%;min-height:44px;padding:10px 14px;border-radius:var(--r-btn);
  border:1px solid var(--c-line);background:#fff;font-size:15px;line-height:1.6;
  transition:border-color .18s,box-shadow .18s;
}
.field:focus{outline:none;border-color:var(--c-brand);box-shadow:0 0 0 3px var(--c-brand-soft)}

@media (max-width:519px){
  .btn{width:100%}
  .btn.inline-auto{width:auto}
  .head-stat{gap:20px 28px}
}

/* roulang page: category3 */
:root{
    --c-primary:#E8501E;
    --c-primary-dark:#C43D12;
    --c-primary-soft:#FDEDE6;
    --c-accent2:#0F7A5A;
    --c-accent2-soft:#E4F2EC;
    --c-highlight:#FFC93C;
    --c-ink:#15171C;
    --c-body:#1F2229;
    --c-muted:#5B616E;
    --c-faint:#8D93A0;
    --c-bg:#FAF8F5;
    --c-bg-alt:#F2EFE9;
    --c-line:#E6E1D8;
    --c-white:#FFFFFF;
    --r-card:14px;
    --r-btn:10px;
    --r-img:12px;
    --shadow-card:0 1px 2px rgba(21,23,28,.04), 0 8px 24px rgba(21,23,28,.06);
    --shadow-card-hover:0 12px 32px rgba(21,23,28,.10);
  }

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

  html{scroll-behavior:smooth;}

  body{
    margin:0;
    background:var(--c-bg);
    color:var(--c-body);
    font-family:system-ui,"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",sans-serif;
    font-size:16px;
    line-height:1.85;
    letter-spacing:0;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
    overflow-x:hidden;
  }

  img{max-width:100%;display:block;border-style:none;}
  a{color:inherit;text-decoration:none;}
  button,input,textarea,select{font:inherit;color:inherit;}
  h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
  ul,ol{padding:0;list-style:none;}

  h1{font-size:clamp(28px,4.6vw,46px);font-weight:800;line-height:1.25;letter-spacing:0;color:#fff;}
  h2{font-size:clamp(22px,3vw,32px);font-weight:800;line-height:1.3;letter-spacing:0;color:var(--c-ink);}
  h3{font-size:19px;font-weight:700;line-height:1.4;color:var(--c-ink);}
  h4{font-size:16px;font-weight:700;line-height:1.5;color:var(--c-ink);}

  .container-x{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
  @media (min-width:1024px){ .container-x{padding-left:32px;padding-right:32px;} }

  .section{padding-top:56px;padding-bottom:56px;}
  @media (min-width:768px){ .section{padding-top:72px;padding-bottom:72px;} }
  @media (min-width:1024px){ .section{padding-top:96px;padding-bottom:96px;} }

  .section-alt{background:var(--c-bg-alt);}
  .section-ink{background:var(--c-ink);color:#fff;}
  .section-ink h2{color:#fff;}

  .prose-cn p{margin-bottom:1.15em;line-height:1.9;text-align:left;}
  .prose-cn p:last-child{margin-bottom:0;}

  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:13px;font-weight:600;color:var(--c-primary);margin-bottom:8px;
  }
  .eyebrow::before{content:"";width:4px;height:14px;border-radius:2px;background:var(--c-primary);}

  /* ---------- 导航 ---------- */
  .nav-bar{
    position:sticky;top:0;z-index:60;
    background:rgba(250,248,245,.92);
    backdrop-filter:blur(10px);
    border-bottom:1px solid transparent;
    transition:background .25s, border-color .25s, box-shadow .25s;
  }
  .nav-bar.is-scrolled{
    background:#fff;
    border-bottom-color:var(--c-line);
    box-shadow:0 1px 2px rgba(21,23,28,.04), 0 6px 18px rgba(21,23,28,.05);
  }
  .nav-logo-mark{
    width:24px;height:24px;flex:0 0 24px;border-radius:7px;
    background:var(--c-primary);color:#fff;
    display:grid;place-items:center;
    font-size:13px;font-weight:800;line-height:1;
  }
  .nav-link{
    position:relative;display:inline-flex;align-items:center;
    padding:22px 0;
    font-size:16px;font-weight:500;color:var(--c-muted);
    text-decoration:none;transition:color .2s;
  }
  .nav-link:hover{color:var(--c-primary);}
  .nav-link.active{color:var(--c-primary);font-weight:600;}
  .nav-link.active::after{
    content:"";position:absolute;left:0;right:0;bottom:0;
    height:3px;border-radius:2px;background:var(--c-primary);
  }
  .nav-link:focus-visible{outline:2px solid var(--c-primary);outline-offset:3px;border-radius:4px;}

  .nav-search{
    display:flex;align-items:center;gap:8px;
    width:224px;height:40px;padding:0 14px;
    background:#fff;border:1px solid var(--c-line);border-radius:999px;
    transition:border-color .2s, box-shadow .2s;
  }
  .nav-search:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 3px var(--c-primary-soft);}
  .nav-search input{
    width:100%;border:none;outline:none;background:transparent;
    font-size:14px;color:var(--c-body);
  }
  .nav-search input::placeholder{color:var(--c-faint);}

  .icon-btn{
    width:44px;height:44px;display:grid;place-items:center;
    border-radius:var(--r-btn);border:1px solid var(--c-line);background:#fff;
    color:var(--c-ink);cursor:pointer;transition:.2s;
  }
  .icon-btn:hover{border-color:var(--c-primary);color:var(--c-primary);}
  .icon-btn:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:46px;padding:12px 24px;
    border-radius:var(--r-btn);border:1px solid transparent;
    font-size:15px;font-weight:600;line-height:1.2;
    cursor:pointer;text-decoration:none;white-space:nowrap;
    transition:background .2s, color .2s, border-color .2s, transform .16s, box-shadow .2s;
  }
  .btn-primary{background:var(--c-primary);color:#fff;}
  .btn-primary:hover{background:var(--c-primary-dark);transform:translateY(-1px);}
  .btn-primary:active{transform:translateY(0);}
  .btn-ghost{background:#fff;border-color:var(--c-primary);color:var(--c-primary);}
  .btn-ghost:hover{background:var(--c-primary-soft);transform:translateY(-1px);}
  .btn-ghost:active{transform:translateY(0);}
  .btn-highlight{background:var(--c-highlight);color:var(--c-ink);font-weight:700;}
  .btn-highlight:hover{background:#F0B72A;transform:translateY(-1px);}
  .btn-highlight:active{transform:translateY(0);}
  .btn:focus-visible{outline:2px solid var(--c-primary);outline-offset:3px;}

  /* ---------- 标签 ---------- */
  .badge{
    display:inline-flex;align-items:center;gap:6px;
    padding:5px 12px;border-radius:999px;
    font-size:12px;font-weight:600;line-height:1.5;
    background:var(--c-primary-soft);color:var(--c-primary);
  }
  .badge-jade{background:var(--c-accent2-soft);color:var(--c-accent2);}
  .badge-ghost{background:rgba(255,255,255,.12);color:#fff;}
  .badge-volt{background:rgba(255,201,60,.16);color:var(--c-highlight);}

  /* ---------- 卡片 ---------- */
  .card{
    background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
    box-shadow:var(--shadow-card);
    transition:box-shadow .25s, transform .25s, border-color .25s;
  }
  .card:hover{box-shadow:var(--shadow-card-hover);transform:translateY(-2px);}
  .card-static{transition:none;}
  .card-static:hover{transform:none;box-shadow:var(--shadow-card);}

  .img-frame{
    border-radius:var(--r-img);overflow:hidden;
    background:linear-gradient(135deg,#F6F1EA 0%, #EFE9E0 100%);
  }
  .img-frame img{width:100%;height:100%;object-fit:cover;}

  /* ---------- 清单项 ---------- */
  .check-item{
    display:flex;gap:14px;align-items:flex-start;
    padding:18px 20px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
    transition:border-color .2s, box-shadow .2s, transform .2s;
  }
  .check-item:hover{border-color:#E0D6C9;box-shadow:var(--shadow-card);transform:translateY(-2px);}
  .check-icon{
    flex:0 0 26px;width:26px;height:26px;border-radius:8px;
    background:var(--c-accent2-soft);color:var(--c-accent2);
    display:grid;place-items:center;margin-top:2px;
  }

  /* ---------- 数据条 ---------- */
  .stat-cell{
    padding:24px 22px;border-radius:var(--r-card);
    background:rgba(255,255,255,.04);
    border:1px solid rgba(255,255,255,.10);
  }
  .stat-num{
    font-size:clamp(30px,4.2vw,42px);font-weight:800;line-height:1.1;
    color:var(--c-highlight);letter-spacing:.02em;
    display:flex;align-items:baseline;gap:6px;
  }
  .stat-unit{font-size:15px;font-weight:700;color:#B9BEC7;}
  .stat-desc{font-size:13px;color:#A6ABB5;margin-top:10px;line-height:1.7;}

  /* ---------- 问答 ---------- */
  .qa-item{
    padding:22px 24px;border-radius:var(--r-card);
    background:#fff;border:1px solid var(--c-line);
    transition:border-color .2s, box-shadow .2s;
  }
  .qa-item:hover{border-color:#E0D6C9;box-shadow:var(--shadow-card);}
  .qa-q{
    display:flex;gap:10px;align-items:flex-start;
    font-size:16px;font-weight:700;color:var(--c-ink);line-height:1.55;
    margin-bottom:10px;
  }
  .qa-mark{
    flex:0 0 auto;width:22px;height:22px;border-radius:6px;margin-top:3px;
    background:var(--c-primary-soft);color:var(--c-primary);
    display:grid;place-items:center;font-size:12px;font-weight:800;
  }
  .qa-a{font-size:15px;color:var(--c-muted);line-height:1.85;padding-left:32px;}

  /* ---------- 表单 ---------- */
  .form-field label{
    display:block;font-size:13px;font-weight:600;color:var(--c-muted);margin-bottom:6px;
  }
  .form-field input,
  .form-field textarea{
    width:100%;background:#fff;color:var(--c-body);
    border:1px solid var(--c-line);border-radius:var(--r-btn);
    padding:0 14px;height:44px;outline:none;
    transition:border-color .2s, box-shadow .2s;
  }
  .form-field textarea{height:auto;min-height:120px;padding:12px 14px;line-height:1.7;resize:vertical;}
  .form-field input:focus,
  .form-field textarea:focus{
    border-color:var(--c-primary);
    box-shadow:0 0 0 3px var(--c-primary-soft);
  }
  .form-field input::placeholder,
  .form-field textarea::placeholder{color:var(--c-faint);}

  /* ---------- 页脚 ---------- */
  .footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;}
  .footer-link{font-size:14px;color:#A6ABB5;text-decoration:none;transition:color .2s;}
  .footer-link:hover{color:var(--c-highlight);}
  .social-dot{
    width:34px;height:34px;border-radius:10px;
    background:#22252C;color:#A6ABB5;
    display:grid;place-items:center;
    font-size:13px;font-weight:600;transition:background .2s, color .2s;
  }
  .social-dot:hover{background:var(--c-primary);color:#fff;}

  /* ---------- 移动端抽屉 ---------- */
  .drawer-mask{
    position:fixed;inset:0;z-index:80;
    background:rgba(21,23,28,.45);
    opacity:0;pointer-events:none;transition:opacity .25s;
  }
  .drawer-mask.show{opacity:1;pointer-events:auto;}
  .drawer{
    position:fixed;top:0;right:0;z-index:90;
    width:min(88vw,360px);height:100%;
    background:#fff;padding:20px;
    display:flex;flex-direction:column;gap:6px;
    transform:translateX(100%);transition:transform .3s ease;
    overflow-y:auto;
    box-shadow:-12px 0 40px rgba(21,23,28,.16);
  }
  .drawer.show{transform:translateX(0);}
  .drawer-link{
    display:flex;align-items:center;justify-content:space-between;
    min-height:48px;padding:0 14px;border-radius:var(--r-btn);
    font-size:16px;font-weight:500;color:var(--c-ink);
    transition:background .2s, color .2s;
  }
  .drawer-link:hover{background:var(--c-bg-alt);}
  .drawer-link.active{background:var(--c-primary-soft);color:var(--c-primary);font-weight:700;}

  body.no-scroll{overflow:hidden;}

  ::selection{background:var(--c-primary-soft);color:var(--c-primary-dark);}