/* roulang page: index */
:root{
  --ink:#17403A;
  --ink-2:#2C6B5F;
  --mist:#7FA79B;
  --clay:#E0713C;
  --clay-dark:#C85F2E;
  --paper:#F7F5F0;
  --card:#FFFFFF;
  --deep:#12302C;
  --text:#1A2422;
  --text-2:#5A6A65;
  --text-3:#8B9993;
  --line:#E3E1DA;
  --r-card:16px;
  --r-img:14px;
  --r-deep:20px;
  --r-input:12px;
  --r-badge:6px;
  --sh-sm:0 1px 2px rgba(23,64,58,.06);
  --sh-md:0 8px 24px rgba(23,64,58,.08);
  --sh-lg:0 18px 48px rgba(23,64,58,.12);
  --bs-primary:#17403A;
  --bs-body-font-family:'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,transform .2s ease,border-color .2s ease;}
button,input{font-family:inherit;}
h1,h2,h3,h4{line-height:1.25;letter-spacing:-.02em;font-weight:800;color:var(--ink);margin:0;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(23,64,58,.22);border-radius:8px;}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
@media (min-width:1400px){.wrap{max-width:1260px;}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:500;color:var(--ink);
  background:rgba(127,167,155,.16);
  padding:6px 12px;border-radius:var(--r-badge);
  letter-spacing:.04em;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--clay);}
.sec{padding:96px 0;position:relative;}
.sec-head{margin-bottom:40px;}
.sec-head h2{font-size:32px;}
.sec-head p{margin-top:14px;color:var(--text-2);max-width:62ch;}
.sec-head.with-link{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}

/* 导航 */
.site-head{
  position:sticky;top:0;z-index:1040;
  background:rgba(247,245,240,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.head-inner{display:flex;align-items:center;gap:24px;height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:32px;height:32px;border-radius:10px;
  background:linear-gradient(140deg,var(--ink) 0%,var(--ink-2) 100%);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.brand-mark svg{width:18px;height:18px;}
.brand-text{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:-.01em;white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:28px;margin-left:12px;}
.main-nav a{
  font-size:15px;font-weight:500;color:var(--text-2);
  padding:6px 2px;position:relative;white-space:nowrap;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--clay);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .22s ease;
}
.main-nav a:hover{color:var(--ink);}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.active{color:var(--ink);font-weight:700;}
.main-nav a.active::after{transform:scaleX(1);background:var(--ink);}
.head-tools{display:flex;align-items:center;gap:14px;margin-left:auto;}
.cmd-search{
  display:flex;align-items:center;gap:8px;
  width:220px;height:40px;padding:0 10px 0 14px;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  transition:width .25s ease,border-color .2s ease,box-shadow .2s ease;
}
.cmd-search:hover{border-color:var(--mist);}
.cmd-search:focus-within{width:320px;border-color:var(--ink);box-shadow:0 0 0 3px rgba(23,64,58,.12);}
.cmd-search svg{width:16px;height:16px;flex-shrink:0;stroke:var(--text-3);}
.cmd-search input{
  border:0;background:transparent;outline:none;width:100%;
  font-size:13px;color:var(--text);
}
.cmd-search input::placeholder{color:var(--text-3);}
.cmd-search kbd{
  font-family:'Inter',system-ui,sans-serif;font-size:12px;
  color:var(--text-3);background:var(--paper);border:1px solid var(--line);
  border-radius:6px;padding:1px 6px;white-space:nowrap;
}
.ghost-link{font-size:14px;font-weight:500;color:var(--text-2);}
.ghost-link:hover{color:var(--ink);text-decoration:underline;text-underline-offset:4px;}
.btn-k{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:500;line-height:1;
  padding:12px 24px;border-radius:999px;border:1.5px solid transparent;
  cursor:pointer;transition:all .2s ease;white-space:nowrap;
}
.btn-sm-k{padding:10px 18px;font-size:14px;}
.btn-clay{background:var(--clay);color:#fff;box-shadow:var(--sh-sm);}
.btn-clay:hover{background:var(--clay-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-md);}
.btn-line{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-line:hover{background:rgba(23,64,58,.08);color:var(--ink);}
.btn-text{background:none;border:none;padding:0;color:var(--ink);font-weight:500;font-size:15px;display:inline-flex;align-items:center;gap:6px;}
.btn-text:hover{text-decoration:underline;text-underline-offset:4px;gap:10px;}
.btn-text::after{content:"›";font-size:18px;line-height:1;transition:transform .2s ease;}
.btn-text:hover::after{transform:translateX(2px);}
.burger{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:#fff;flex-direction:column;
  align-items:center;justify-content:center;gap:5px;cursor:pointer;
}
.burger span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;}

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(18,48,44,.45);
  opacity:0;visibility:hidden;transition:.3s ease;z-index:1070;
}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:85%;max-width:360px;
  background:var(--paper);z-index:1080;padding:22px;
  transform:translateX(100%);transition:transform .3s ease;
  display:flex;flex-direction:column;box-shadow:-12px 0 40px rgba(23,64,58,.16);
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);background:#fff;font-size:18px;color:var(--ink);cursor:pointer;line-height:1;}
.drawer nav{display:flex;flex-direction:column;}
.drawer nav a{
  font-size:18px;font-weight:500;color:var(--ink);
  padding:16px 4px;border-bottom:1px solid var(--line);
}
.drawer nav a.active{color:var(--clay);font-weight:700;}
.drawer-foot{margin-top:auto;padding-top:20px;}
.drawer-foot .btn-k{width:100%;}

/* Hero */
.hero{position:relative;padding:76px 0 96px;overflow:hidden;}
.hero::after{
  content:"";position:absolute;right:-150px;top:-150px;width:480px;height:480px;
  border-radius:52% 48% 60% 40%;background:rgba(23,64,58,.08);pointer-events:none;
}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;}
.hero h1{font-size:44px;margin:20px 0 18px;letter-spacing:-.02em;}
.hero .lede{font-size:17px;color:var(--text-2);max-width:34em;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:30px 0 28px;}
.trust-row{display:flex;flex-wrap:wrap;gap:26px;}
.trust-row li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-2);}
.trust-row svg{width:16px;height:16px;stroke:var(--ink);flex-shrink:0;}
.hero-visual{
  position:relative;height:460px;border-radius:var(--r-deep);overflow:hidden;
  background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  box-shadow:var(--sh-lg);
}
.hero-visual::before{content:"";position:absolute;inset:0;background:rgba(23,64,58,.6);}
.hero-visual .arc{
  position:absolute;right:-40px;bottom:-60px;width:300px;height:300px;
  opacity:.16;pointer-events:none;
}
.hero-note{
  position:absolute;left:24px;right:24px;bottom:24px;
  background:rgba(255,255,255,.94);border-radius:14px;padding:16px 18px;
  backdrop-filter:blur(6px);
}
.hero-note strong{display:block;font-size:15px;color:var(--ink);font-weight:700;}
.hero-note span{font-size:13px;color:var(--text-2);}

/* 品牌主张 */
.claim-grid{display:grid;grid-template-columns:5fr 7fr;gap:64px;align-items:start;}
.claim-left{position:sticky;top:104px;}
.claim-left h2{font-size:32px;margin-bottom:16px;}
.claim-left p{color:var(--text-2);}
.claim-list{border-top:1px solid var(--line);}
.claim-item{
  display:flex;gap:24px;padding:28px 0;border-bottom:1px solid var(--line);
  transition:transform .2s ease;
}
.claim-item:hover{transform:translateX(4px);}
.claim-num{
  font-family:'Inter',system-ui,sans-serif;font-size:20px;font-weight:600;
  color:var(--mist);line-height:1.4;flex-shrink:0;transition:color .2s ease;
}
.claim-item:hover .claim-num{color:var(--clay);}
.claim-item h3{font-size:19px;margin-bottom:8px;}
.claim-item p{color:var(--text-2);font-size:15px;}

/* 故事 */
.story{background:var(--deep);color:#E8EFEC;position:relative;overflow:hidden;}
.story::after{
  content:"";position:absolute;right:-120px;top:50%;width:360px;height:360px;
  border-radius:50%;border:1.5px solid rgba(255,255,255,.08);pointer-events:none;
}
.story-grid{display:grid;grid-template-columns:6fr 6fr;gap:56px;align-items:center;position:relative;z-index:1;}
.story h2{color:#fff;font-size:32px;margin-bottom:18px;}
.story p{color:rgba(232,239,236,.82);max-width:62ch;}
.story p + p{margin-top:16px;}
.story-img{border-radius:var(--r-deep);overflow:hidden;box-shadow:var(--sh-lg);}
.story-img img{width:100%;height:400px;object-fit:cover;border-radius:var(--r-deep);}
.story-points{display:flex;gap:32px;flex-wrap:wrap;margin-top:28px;}
.story-points li{font-size:14px;color:rgba(232,239,236,.72);}
.story-points b{display:block;font-family:'Inter',system-ui,sans-serif;font-size:24px;color:#fff;font-weight:600;line-height:1.4;}

/* 卡片 */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
.k-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-md);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease;
}
.k-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg);}
.k-card .thumb{aspect-ratio:16/10;overflow:hidden;}
.k-card .thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .25s ease;}
.k-card:hover .thumb img{transform:scale(1.04);}
.k-card .body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.badge-k{
  align-self:flex-start;font-size:12px;font-weight:500;color:var(--ink);
  background:rgba(127,167,155,.18);padding:3px 10px;border-radius:var(--r-badge);
}
.k-card h3{font-size:18px;line-height:1.5;}
.k-card .desc{font-size:14px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.k-card .foot{margin-top:auto;padding-top:6px;}

/* 最新信息 */
.news-panel{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-sm);}
.news-item{
  display:flex;align-items:center;gap:20px;padding:20px 26px;
  border-bottom:1px solid var(--line);transition:background-color .2s ease;
}
.news-item:last-child{border-bottom:0;}
.news-item:hover{background:var(--paper);}
.news-main{flex:1;min-width:0;}
.news-main .t{display:flex;align-items:center;gap:12px;flex-wrap:wrap;}
.news-main .t h3{font-size:17px;font-weight:700;}
.news-main .t h3 a:hover{color:var(--clay);}
.news-main .s{
  font-size:14px;color:var(--text-2);margin-top:6px;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.news-date{font-family:'Inter',system-ui,sans-serif;font-size:13px;color:var(--text-3);white-space:nowrap;}
.news-empty{padding:56px 24px;text-align:center;}
.news-empty svg{width:38px;height:38px;stroke:var(--mist);margin:0 auto 14px;}
.news-empty p{color:var(--text-2);font-size:15px;margin-bottom:18px;}

/* 数据与证言 */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;padding-bottom:56px;border-bottom:1px solid var(--line);}
.stat b{display:block;font-family:'Inter',system-ui,sans-serif;font-size:40px;font-weight:600;color:var(--ink);line-height:1.2;}
.stat span{font-size:14px;color:var(--text-2);}
.quotes{display:grid;grid-template-columns:7fr 5fr;gap:28px;margin-top:56px;align-items:stretch;}
.quote{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sh-sm);display:flex;flex-direction:column;gap:16px;
}
.quote .mark{font-family:Georgia,serif;font-size:44px;line-height:1;color:var(--mist);}
.quote p{font-size:16px;color:var(--text);}
.quote .who{margin-top:auto;font-size:14px;color:var(--text-3);}
.quote.small p{font-size:15px;color:var(--text-2);}

/* FAQ */
.faq .accordion-item{
  background:#fff;border:1px solid var(--line);border-radius:12px;
  margin-bottom:12px;overflow:hidden;box-shadow:var(--sh-sm);
}
.faq .accordion-button{
  position:relative;background:#fff;border:0;box-shadow:none;
  font-size:17px;font-weight:600;color:var(--text);
  padding:20px 56px 20px 24px;text-align:left;width:100%;
}
.faq .accordion-button:not(.collapsed){color:var(--ink);background:#fff;box-shadow:none;}
.faq .accordion-button:not(.collapsed)::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--clay);
}
.faq .accordion-button::after{display:none;}
.faq .accordion-button:focus{box-shadow:0 0 0 3px rgba(23,64,58,.16);}
.plus{position:absolute;right:24px;top:50%;width:16px;height:16px;transform:translateY(-50%);}
.plus::before,.plus::after{content:"";position:absolute;background:var(--ink);border-radius:2px;transition:transform .25s ease,opacity .25s ease;}
.plus::before{left:0;top:7px;width:16px;height:2px;}
.plus::after{left:7px;top:0;width:2px;height:16px;}
.accordion-button:not(.collapsed) .plus::after{transform:scaleY(0);opacity:0;}
.faq .accordion-body{font-size:15px;line-height:1.8;color:var(--text-2);padding:0 24px 22px;}

/* CTA */
.cta-deep{
  background:var(--deep);border-radius:var(--r-deep);padding:56px;
  display:grid;grid-template-columns:6fr 6fr;gap:40px;align-items:center;
  position:relative;overflow:hidden;
}
.cta-deep::after{
  content:"";position:absolute;right:-90px;top:-90px;width:280px;height:280px;
  border-radius:50%;border:1.5px solid rgba(255,255,255,.09);pointer-events:none;
}
.cta-deep h2{color:#fff;font-size:30px;margin-bottom:14px;}
.cta-deep p{color:rgba(232,239,236,.8);font-size:15px;}
.cta-form{position:relative;z-index:1;}
.cta-inline{display:flex;gap:12px;background:#fff;border-radius:999px;padding:6px 6px 6px 20px;align-items:center;}
.cta-inline input{flex:1;border:0;outline:none;height:40px;font-size:15px;color:var(--text);background:transparent;min-width:0;}
.cta-inline input::placeholder{color:var(--text-3);}
.cta-inline:focus-within{box-shadow:0 0 0 4px rgba(224,113,60,.25);}
.cta-tip{font-size:13px;color:rgba(232,239,236,.6);margin-top:14px;}
.cta-msg{font-size:14px;color:#fff;margin-top:12px;min-height:22px;}

/* 页脚 */
.site-foot{background:var(--deep);color:rgba(232,239,236,.78);padding:72px 0 0;margin-top:96px;}
.foot-grid{display:grid;grid-template-columns:2.2fr 1fr 1fr 1.4fr;gap:40px;}
.site-foot h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px;}
.site-foot .brand-text{color:#fff;}
.site-foot .about{font-size:14px;line-height:1.8;margin:16px 0 20px;max-width:34ch;}
.foot-links li{margin-bottom:10px;}
.foot-links a{font-size:14px;color:rgba(232,239,236,.72);}
.foot-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}
.socials{display:flex;gap:12px;}
.socials a{
  width:36px;height:36px;border-radius:10px;border:1px solid rgba(255,255,255,.18);
  display:flex;align-items:center;justify-content:center;
}
.socials a:hover{border-color:rgba(255,255,255,.5);background:rgba(255,255,255,.06);}
.socials svg{width:16px;height:16px;stroke:rgba(232,239,236,.85);}
.foot-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 26px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(232,239,236,.55);
}
.foot-bottom a{color:rgba(232,239,236,.55);}
.foot-bottom a:hover{color:#fff;}

@media (max-width:1199px){
  .main-nav{gap:20px;}
  .cmd-search{width:44px;padding:0 0 0 13px;overflow:hidden;}
  .cmd-search input,.cmd-search kbd{display:none;}
  .ghost-link{display:none;}
  .hero h1{font-size:38px;}
}
@media (max-width:991px){
  .sec{padding:72px 0;}
  .main-nav{display:none;}
  .cmd-search{display:none;}
  .burger{display:flex;}
  .hero{padding:56px 0 72px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-visual{height:320px;}
  .claim-grid{grid-template-columns:1fr;gap:32px;}
  .claim-left{position:static;}
  .story-grid{grid-template-columns:1fr;gap:32px;}
  .story-img img{height:300px;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .stats{grid-template-columns:repeat(2,1fr);gap:24px;}
  .quotes{grid-template-columns:1fr;}
  .cta-deep{grid-template-columns:1fr;padding:40px;gap:26px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .wrap{padding:0 20px;}
  .sec{padding:56px 0;}
  .head-inner{height:56px;gap:12px;}
  .brand-text{font-size:15px;}
  .head-tools .btn-k{display:none;}
  .hero h1{font-size:30px;}
  .hero .lede{font-size:16px;}
  .sec-head h2,.claim-left h2,.story h2{font-size:24px;}
  .card-grid{grid-template-columns:1fr;}
  .news-item{flex-direction:column;align-items:flex-start;gap:8px;padding:18px 20px;}
  .news-main .s{white-space:normal;}
  .stats{grid-template-columns:1fr 1fr;}
  .stat b{font-size:32px;}
  .cta-deep{padding:28px 22px;}
  .cta-inline{flex-direction:column;align-items:stretch;border-radius:18px;padding:14px;}
  .cta-inline .btn-k{width:100%;}
  .foot-grid{grid-template-columns:1fr;gap:8px;}
  .foot-col{border-bottom:1px solid rgba(255,255,255,.12);}
  .foot-col h4{padding:16px 0;margin:0;cursor:pointer;display:flex;justify-content:space-between;align-items:center;}
  .foot-col h4::after{content:"+";font-size:16px;color:rgba(232,239,236,.6);}
  .foot-col.open h4::after{content:"–";}
  .foot-col .foot-body{display:none;padding-bottom:16px;}
  .foot-col.open .foot-body{display:block;}
  .site-foot{padding-top:36px;}
  .site-foot .about{margin-top:12px;}
}
@media (max-width:519px){
  .hero h1{font-size:26px;}
  .claim-item{gap:14px;}
  .stats{grid-template-columns:1fr;}
}

/* roulang page: article */
:root{
  --ink:#17403A;
  --ink-2:#2C6B5F;
  --mist:#7FA79B;
  --clay:#E0713C;
  --clay-dark:#C85E2D;
  --paper:#F7F5F0;
  --card:#FFFFFF;
  --deep:#12302C;
  --text:#1A2422;
  --text-2:#5A6A65;
  --text-3:#8B9993;
  --line:#E3E1DA;
  --r-card:16px;
  --r-img:14px;
  --r-block:20px;
  --r-input:12px;
  --r-badge:6px;
  --sh-sm:0 1px 2px rgba(23,64,58,.06);
  --sh-md:0 8px 24px rgba(23,64,58,.08);
  --sh-lg:0 18px 48px rgba(23,64,58,.12);

  --bs-primary:#17403A;
  --bs-primary-rgb:23,64,58;
  --bs-body-bg:#F7F5F0;
  --bs-body-color:#1A2422;
  --bs-border-color:#E3E1DA;
  --bs-link-color:#17403A;
  --bs-link-hover-color:#2C6B5F;
  --bs-border-radius:16px;
  --bs-font-sans-serif:'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--ink);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--ink-2)}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:-.02em;font-weight:700;color:var(--ink)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(23,64,58,.28);border-radius:8px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1400px){.wrap{max-width:1260px}}

/* ---------- 导航 ---------- */
.site-head{
  position:sticky;top:0;z-index:1030;
  background:rgba(247,245,240,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.head-inner{display:flex;align-items:center;gap:26px;height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none}
.brand-mark{
  width:32px;height:32px;border-radius:10px;background:var(--ink);
  display:inline-flex;align-items:center;justify-content:center;flex:none;
}
.brand-mark svg{width:19px;height:19px;stroke:#F7F5F0}
.brand-text{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:-.01em;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:22px;margin-left:6px}
.main-nav a{
  position:relative;font-size:15px;font-weight:500;color:var(--text-2);padding:6px 2px;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--ink);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.main-nav a:hover{color:var(--ink)}
.main-nav a:hover::after{transform:scaleX(1)}
.main-nav a.active{color:var(--ink);font-weight:700}
.main-nav a.active::after{transform:scaleX(1)}
.head-tools{margin-left:auto;display:flex;align-items:center;gap:14px}
.cmd-search{
  display:flex;align-items:center;gap:8px;
  height:40px;width:220px;padding:0 12px;
  border:1px solid var(--line);border-radius:999px;background:#fff;
  transition:width .28s ease,border-color .2s ease,box-shadow .2s ease;
}
.cmd-search svg{width:17px;height:17px;stroke:var(--text-3);flex:none}
.cmd-search input{
  border:0;background:transparent;outline:none;width:100%;
  font-size:14px;color:var(--text);
}
.cmd-search input::placeholder{color:var(--text-3)}
.cmd-search kbd{
  font-family:'Inter',system-ui,sans-serif;font-size:11px;color:var(--text-3);
  border:1px solid var(--line);border-radius:5px;padding:1px 5px;background:var(--paper);white-space:nowrap;
}
.cmd-search:focus-within{width:320px;border-color:var(--ink);box-shadow:0 0 0 3px rgba(23,64,58,.10)}
.ghost-link{font-size:14px;font-weight:500;color:var(--text-2);white-space:nowrap}
.ghost-link:hover{color:var(--ink)}
.btn-k{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1.5px solid transparent;border-radius:999px;cursor:pointer;
  font-size:15px;font-weight:600;padding:12px 24px;line-height:1;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
}
.btn-clay{background:var(--clay);color:#fff;box-shadow:var(--sh-sm)}
.btn-clay:hover{background:var(--clay-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-md)}
.btn-clay:active{transform:translateY(0);box-shadow:var(--sh-sm)}
.btn-line{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-line:hover{background:rgba(23,64,58,.08);color:var(--ink)}
.btn-sm-k{padding:10px 18px;font-size:14px}
.burger{
  display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:12px;
  background:#fff;padding:0;position:relative;
}
.burger span{
  position:absolute;left:11px;right:11px;height:1.8px;background:var(--ink);border-radius:2px;
  transition:.25s ease;
}
.burger span:nth-child(1){top:14px}
.burger span:nth-child(2){top:19px}
.burger span:nth-child(3){top:24px}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

.drawer{
  position:fixed;top:0;right:0;bottom:0;width:85%;max-width:360px;z-index:1060;
  background:var(--paper);border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .3s ease;
  display:flex;flex-direction:column;padding:22px 22px 26px;
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{
  width:38px;height:38px;border-radius:12px;border:1px solid var(--line);background:#fff;
  color:var(--ink);font-size:18px;line-height:1;cursor:pointer;
}
.drawer-nav{display:flex;flex-direction:column;margin-top:6px}
.drawer-nav a{
  font-size:18px;font-weight:500;color:var(--text);line-height:56px;
  border-bottom:1px solid var(--line);
}
.drawer-nav a:hover{color:var(--ink)}
.drawer-cta{margin-top:auto;width:100%}
.drawer-mask{
  position:fixed;inset:0;background:rgba(18,48,44,.42);z-index:1050;
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;
}
.drawer-mask.open{opacity:1;visibility:visible}

/* ---------- 面包屑 ---------- */
.crumb-bar{padding:22px 0 0}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--text-3)}
.crumb a{color:var(--text-2)}
.crumb a:hover{color:var(--ink)}
.crumb .sep{color:#C9C7BF}
.crumb .now{color:var(--text-2);max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 文章头 ---------- */
.article-hero{padding:26px 0 0}
.article-head{max-width:860px}
.badge-k{
  display:inline-block;font-size:12px;font-weight:600;color:var(--ink);
  background:rgba(127,167,155,.18);border-radius:var(--r-badge);
  padding:4px 10px;letter-spacing:.04em;
}
.article-head h1{
  font-size:44px;font-weight:800;margin:18px 0 16px;letter-spacing:-.02em;line-height:1.25;
  color:var(--ink);word-break:break-word;
}
.lede{
  font-size:17px;line-height:1.85;color:var(--text-2);max-width:62ch;
  padding-left:16px;border-left:3px solid var(--clay);
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:14px;color:var(--text-3);margin-top:20px;
  font-family:'Inter',system-ui,'Noto Sans SC',sans-serif;
}
.meta-row .dot{width:3px;height:3px;border-radius:50%;background:#C9C7BF;display:inline-block}
.meta-row .label{color:var(--text-2)}

/* ---------- 主区 ---------- */
.article-main{padding:34px 0 72px}
.article-stage{
  display:grid;grid-template-columns:minmax(0,760px);
  justify-content:center;gap:56px;
}
.cover-figure{margin:0 0 34px}
.cover-figure img{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  border-radius:var(--r-card);border:1px solid var(--line);
}
.cover-figure figcaption{font-size:13px;color:var(--text-3);margin-top:10px}

.article-body{
  font-size:17px;line-height:1.9;color:var(--text);max-width:760px;
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 20px}
.article-body h2{
  font-size:26px;margin:48px 0 16px;color:var(--ink);font-weight:700;letter-spacing:-.01em;
  padding-bottom:10px;border-bottom:1px solid var(--line);
}
.article-body h3{font-size:20px;margin:32px 0 12px;color:var(--ink)}
.article-body h4{font-size:18px;margin:26px 0 10px;color:var(--ink)}
.article-body ul,.article-body ol{margin:0 0 22px;padding-left:22px}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin-bottom:10px}
.article-body ul li::marker{color:var(--ink-2)}
.article-body ol li::marker{color:var(--clay);font-weight:600}
.article-body blockquote{
  margin:28px 0;padding:18px 22px;background:var(--paper);
  border-left:3px solid var(--clay);border-radius:0 var(--r-input) var(--r-input) 0;
  color:var(--text-2);font-size:16px;
}
.article-body img{border-radius:var(--r-img);margin:10px 0 24px}
.article-body a{color:var(--ink-2);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--ink)}
.article-body table{width:100%;border-collapse:collapse;margin:0 0 26px;font-size:15px}
.article-body th{
  background:#F0EEE8;text-align:left;padding:12px 14px;font-weight:600;color:var(--ink);
}
.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);color:var(--text-2)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0}
.article-body code{
  background:#F0EEE8;border-radius:6px;padding:2px 6px;font-size:15px;
  font-family:'Inter',ui-monospace,monospace;color:var(--ink-2);
}

.article-toc{display:none}
.article-toc h4{font-size:13px;letter-spacing:.08em;color:var(--text-3);font-weight:600;margin-bottom:14px;text-transform:uppercase}
.article-toc ul{display:flex;flex-direction:column;gap:10px;border-left:1px solid var(--line);padding-left:16px}
.article-toc a{font-size:14px;color:var(--text-3);display:block;line-height:1.5}
.article-toc a:hover{color:var(--ink)}
.article-toc a.current{color:var(--ink);font-weight:600}

.empty-state{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:52px 26px;text-align:center;box-shadow:var(--sh-sm);
}
.empty-state svg{width:42px;height:42px;stroke:var(--mist);margin-bottom:14px}
.empty-state h2{font-size:22px;margin-bottom:10px}
.empty-state p{color:var(--text-2);font-size:15px;margin-bottom:22px}

/* ---------- 文末 ---------- */
.article-foot{
  margin-top:48px;padding-top:26px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;
  max-width:760px;
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}
.tag-k{
  font-size:13px;color:var(--ink-2);background:rgba(127,167,155,.16);
  border-radius:999px;padding:6px 14px;transition:background-color .2s ease,color .2s ease;
}
.tag-k:hover{background:rgba(23,64,58,.12);color:var(--ink)}
.act-row{display:flex;flex-wrap:wrap;gap:10px}
.act-btn{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:500;color:var(--ink);
  border:1px solid var(--line);background:#fff;border-radius:999px;padding:9px 16px;cursor:pointer;
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.act-btn:hover{border-color:var(--ink);box-shadow:var(--sh-sm);transform:translateY(-1px)}
.act-btn svg{width:15px;height:15px;stroke:var(--ink-2)}

/* ---------- 相关推荐 ---------- */
.relate{padding:0 0 88px}
.relate-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:26px}
.relate-head h2{font-size:32px}
.relate-head .more{font-size:14px;font-weight:500;color:var(--ink-2);display:inline-flex;align-items:center;gap:6px}
.relate-head .more:hover{color:var(--ink);text-decoration:underline;text-underline-offset:3px}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card-k{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-sm);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card-k:hover{transform:translateY(-4px);box-shadow:var(--sh-lg);border-color:#D6D3CA}
.card-k .thumb{overflow:hidden;aspect-ratio:16/10;background:rgba(23,64,58,.08)}
.card-k .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.card-k:hover .thumb img{transform:scale(1.04)}
.card-k .body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-k h3{font-size:18px;font-weight:700;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-k h3 a{color:var(--ink)}
.card-k h3 a:hover{color:var(--ink-2)}
.card-k .desc{
  font-size:14px;color:var(--text-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-k .foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-3)}
.card-k .foot .go{color:var(--ink-2);font-weight:500}
.card-k:hover .foot .go{text-decoration:underline;text-underline-offset:3px}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;background:var(--deep);border-radius:var(--r-block);
  padding:56px 48px;margin:0 0 88px;overflow:hidden;
}
.cta-band .cloud{
  position:absolute;right:-30px;top:-20px;width:320px;opacity:.10;
}
.cta-inner{position:relative;display:flex;flex-wrap:wrap;gap:32px;align-items:center;justify-content:space-between}
.cta-inner h2{color:#F7F5F0;font-size:30px;max-width:22ch}
.cta-inner p{color:rgba(247,245,240,.72);font-size:15px;margin-top:12px;max-width:48ch}
.inline-form{display:flex;gap:10px;flex-wrap:wrap}
.inline-form input{
  height:48px;min-width:260px;flex:1;border-radius:var(--r-input);
  border:1px solid rgba(247,245,240,.28);background:rgba(247,245,240,.08);
  color:#F7F5F0;padding:0 16px;font-size:15px;outline:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.inline-form input::placeholder{color:rgba(247,245,240,.5)}
.inline-form input:focus{border-color:var(--clay);box-shadow:0 0 0 3px rgba(224,113,60,.22)}
.form-note{font-size:13px;color:rgba(247,245,240,.55);margin-top:14px;width:100%}
.form-msg{font-size:13px;color:#F3C6AC;margin-top:10px;min-height:18px;width:100%}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--deep);color:rgba(247,245,240,.72);padding:64px 0 26px;border-top:1px solid rgba(247,245,240,.08)}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
.site-foot .brand-text{color:#F7F5F0}
.site-foot .brand-mark{background:rgba(247,245,240,.12)}
.site-foot .about{font-size:14px;line-height:1.8;margin:16px 0 18px;color:rgba(247,245,240,.62);max-width:34ch}
.socials{display:flex;gap:10px}
.socials a{
  width:36px;height:36px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  background:rgba(247,245,240,.08);transition:background-color .2s ease;
}
.socials a:hover{background:rgba(224,113,60,.35)}
.socials svg{width:17px;height:17px;stroke:#F7F5F0}
.site-foot h4{color:#F7F5F0;font-size:15px;font-weight:600;margin-bottom:16px;letter-spacing:0}
.foot-links{display:flex;flex-direction:column;gap:11px}
.foot-links a{font-size:14px;color:rgba(247,245,240,.64)}
.foot-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.foot-body.collapsed{display:block}
.foot-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid rgba(247,245,240,.12);
  display:flex;flex-wrap:wrap;gap:10px 22px;justify-content:space-between;
  font-size:13px;color:rgba(247,245,240,.5);font-family:'Inter',system-ui,'Noto Sans SC',sans-serif;
}
.foot-bottom a{color:rgba(247,245,240,.6)}
.foot-bottom a:hover{color:#fff}

/* ---------- 响应式 ---------- */
@media (min-width:1200px){
  .article-stage{grid-template-columns:minmax(0,760px) 210px;justify-content:center}
  .article-toc{display:block;position:sticky;top:96px;align-self:start}
}
@media (max-width:1199.98px){
  .cmd-search{width:180px}
  .cmd-search:focus-within{width:240px}
  .article-head h1{font-size:38px}
  .cta-band{padding:48px 36px}
}
@media (max-width:991.98px){
  .main-nav{display:none}
  .ghost-link{display:none}
  .cmd-search{width:44px;padding:0 12px;justify-content:center}
  .cmd-search input{display:none}
  .cmd-search kbd{display:none}
  .cmd-search:focus-within{width:44px}
  .burger{display:block}
  .head-tools{gap:10px}
  .article-head h1{font-size:34px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .relate-head h2{font-size:26px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767.98px){
  .wrap{padding:0 20px}
  .brand-text{font-size:15px;max-width:56vw;overflow:hidden;text-overflow:ellipsis}
  .btn-sm-k{display:none}
  .article-hero{padding:20px 0 0}
  .article-head h1{font-size:27px;margin:14px 0 14px}
  .lede{font-size:16px;padding-left:13px}
  .article-main{padding:24px 0 52px}
  .article-body{font-size:17px;line-height:1.85}
  .article-body h2{font-size:22px;margin:36px 0 14px}
  .article-body h3{font-size:18px}
  .article-foot{flex-direction:column;align-items:flex-start}
  .card-grid{grid-template-columns:1fr}
  .relate{padding-bottom:60px}
  .cta-band{padding:36px 22px;border-radius:16px;margin-bottom:60px}
  .cta-inner h2{font-size:23px}
  .inline-form input{min-width:0;width:100%}
  .inline-form .btn-k{width:100%}
  .site-foot{padding:44px 0 20px}
  .foot-grid{grid-template-columns:1fr;gap:0}
  .foot-col{border-bottom:1px solid rgba(247,245,240,.12);padding:16px 0}
  .foot-col:first-child{border-bottom:1px solid rgba(247,245,240,.12);padding-bottom:22px}
  .site-foot h4{margin-bottom:0;cursor:pointer;display:flex;align-items:center;justify-content:space-between}
  .foot-body{display:none;padding-top:14px}
  .foot-col.open .foot-body{display:block}
  .foot-bottom{flex-direction:column;gap:8px}
}
@media (max-width:520px){
  .article-head h1{font-size:24px}
  .crumb .now{max-width:32ch}
  .empty-state{padding:38px 18px}
}

/* roulang page: category1 */
:root{
  --ink:#17403A;
  --ink-2:#2C6B5F;
  --mist:#7FA79B;
  --clay:#E0713C;
  --clay-dark:#CF6231;
  --bg:#F7F5F0;
  --card:#FFFFFF;
  --deep:#12302C;
  --text:#1A2422;
  --text-2:#5A6A65;
  --text-3:#8B9993;
  --line:#E3E1DA;
  --r-card:16px;
  --r-img:14px;
  --r-deep:20px;
  --r-input:12px;
  --r-badge:6px;
  --sh-sm:0 1px 2px rgba(23,64,58,.06);
  --sh-md:0 8px 24px rgba(23,64,58,.08);
  --sh-lg:0 18px 48px rgba(23,64,58,.12);
  --bs-primary:#17403A;
  --bs-body-bg:#F7F5F0;
  --bs-body-color:#1A2422;
  --bs-link-color:#17403A;
  --bs-link-hover-color:#2C6B5F;
  --bs-border-color:#E3E1DA;
  --bs-border-radius:16px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:'Noto Sans SC','PingFang SC','Microsoft YaHei','Inter',system-ui,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--ink);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--ink-2)}
h1,h2,h3,h4{line-height:1.25;letter-spacing:-.02em;margin:0;font-weight:800;color:var(--ink)}
p{margin:0 0 16px}
p:last-child{margin-bottom:0}
button{font-family:inherit}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(23,64,58,.3);border-radius:8px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
@media (min-width:1400px){.wrap{max-width:1260px}}
::selection{background:rgba(224,113,60,.22)}

/* ---------- 导航 ---------- */
.site-head{
  position:sticky;top:0;z-index:60;
  background:rgba(247,245,240,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.head-inner{display:flex;align-items:center;gap:24px;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;color:var(--ink);text-decoration:none;flex-shrink:0}
.brand:hover{color:var(--ink)}
.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--ink);display:grid;place-items:center;flex-shrink:0}
.brand-mark svg{width:20px;height:20px}
.brand-text{white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:6px}
.main-nav a{position:relative;font-size:15px;font-weight:500;color:var(--text-2);padding:6px 0;text-decoration:none;white-space:nowrap}
.main-nav a::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--ink);transition:width .22s ease}
.main-nav a:hover{color:var(--ink)}
.main-nav a:hover::after{width:18px}
.main-nav a.active{color:var(--ink);font-weight:700}
.main-nav a.active::after{width:18px}
.head-tools{margin-left:auto;display:flex;align-items:center;gap:14px}
.cmd-search{
  display:flex;align-items:center;gap:8px;height:40px;width:220px;padding:0 12px;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  transition:width .25s ease,border-color .2s ease,box-shadow .2s ease;
}
.cmd-search svg{width:16px;height:16px;stroke:var(--text-3);flex-shrink:0}
.cmd-search input{border:0;outline:0;background:transparent;font-size:14px;color:var(--text);flex:1;min-width:0}
.cmd-search input::placeholder{color:var(--text-3)}
.cmd-search kbd{
  font-family:'Inter',system-ui,sans-serif;font-size:12px;color:var(--text-3);
  border:1px solid var(--line);border-radius:4px;padding:1px 5px;background:var(--bg);
}
.cmd-search:focus-within{width:320px;border-color:var(--ink);box-shadow:0 0 0 3px rgba(23,64,58,.12)}
.ghost-link{font-size:14px;font-weight:500;color:var(--text-2);white-space:nowrap}
.ghost-link:hover{color:var(--ink);text-decoration:underline;text-underline-offset:4px}
.btn-k{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;font-weight:600;font-size:15px;padding:12px 24px;
  border:1.5px solid transparent;cursor:pointer;transition:all .2s ease;
  text-decoration:none;line-height:1.2;white-space:nowrap;
}
.btn-clay{background:var(--clay);color:#fff}
.btn-clay:hover{background:var(--clay-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-md)}
.btn-outline{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-outline:hover{background:rgba(23,64,58,.08);color:var(--ink)}
.btn-sm-k{padding:9px 18px;font-size:14px}
.btn-lg-k{padding:15px 32px;font-size:16px}
.burger{display:none;flex-direction:column;justify-content:center;gap:5px;width:42px;height:42px;border:1px solid var(--line);border-radius:12px;background:#fff;cursor:pointer}
.burger span{display:block;width:18px;height:1.8px;background:var(--ink);margin:0 auto;transition:.25s}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(6.8px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6.8px) rotate(-45deg)}

/* 抽屉 */
.drawer{
  position:fixed;top:0;right:0;height:100%;width:85%;max-width:360px;background:var(--bg);
  z-index:90;transform:translateX(100%);transition:transform .3s ease;
  display:flex;flex-direction:column;padding:28px 24px;box-shadow:var(--sh-lg);
}
.drawer.open{transform:translateX(0)}
.drawer-mask{position:fixed;inset:0;background:rgba(18,48,44,.45);opacity:0;visibility:hidden;transition:.25s ease;z-index:80}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--ink);font-size:18px;cursor:pointer}
.drawer nav{display:flex;flex-direction:column}
.drawer nav a{font-size:18px;line-height:56px;color:var(--text);border-bottom:1px solid var(--line);font-weight:500}
.drawer nav a.active{color:var(--ink);font-weight:700}
.drawer .drawer-cta{margin-top:auto;padding-top:20px}

/* ---------- 面包屑 ---------- */
.crumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:14px;color:rgba(247,245,240,.78)}
.crumb a{color:rgba(247,245,240,.88)}
.crumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.crumb .sep{opacity:.55}

/* ---------- Hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;color:#fff;
  background:linear-gradient(rgba(18,48,44,.70),rgba(23,64,58,.78)),url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  padding:56px 0 64px;
}
.cat-hero::after{
  content:"";position:absolute;right:-90px;bottom:-120px;width:420px;height:420px;border-radius:50%;
  border:1.5px solid rgba(247,245,240,.10);pointer-events:none;
}
.cat-hero .wrap{position:relative;z-index:2}
.hero-badge{
  display:inline-flex;align-items:center;gap:7px;font-size:12px;font-weight:600;
  padding:5px 12px;border-radius:var(--r-badge);background:rgba(127,167,155,.28);color:#EAF2EF;
  margin:22px 0 18px;letter-spacing:.04em;
}
.hero-badge i{font-size:11px}
.cat-hero h1{color:#fff;font-size:clamp(30px,4.2vw,44px);margin-bottom:18px;max-width:760px}
.cat-hero p.lead{font-size:17px;line-height:1.9;color:rgba(247,245,240,.86);max-width:680px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.btn-light-k{background:#F7F5F0;color:var(--ink)}
.btn-light-k:hover{background:#fff;color:var(--ink);transform:translateY(-1px);box-shadow:var(--sh-md)}
.btn-line-light{background:transparent;border-color:rgba(247,245,240,.55);color:#fff}
.btn-line-light:hover{background:rgba(247,245,240,.14);color:#fff}

/* ---------- 板块通用 ---------- */
.section{padding:96px 0}
.section.tight{padding:72px 0}
.section.on-white{background:#fff}
.sec-head{max-width:720px;margin-bottom:48px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--clay);
  text-transform:uppercase;margin-bottom:14px;
}
.sec-head h2{font-size:clamp(24px,3vw,32px);margin-bottom:16px}
.sec-head p{color:var(--text-2);font-size:16px;max-width:62ch}
.link-more{font-weight:600;font-size:15px;display:inline-flex;align-items:center;gap:6px}
.link-more:hover{gap:10px}

/* ---------- 核对区 非对称 ---------- */
.check-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.check-grid h2{font-size:clamp(24px,3vw,32px);margin-bottom:18px}
.check-grid .intro{color:var(--text-2);margin-bottom:26px}
.check-list{list-style:none;padding:0;margin:0}
.check-list li{
  display:flex;gap:14px;padding:18px 0;border-top:1px solid var(--line);
}
.check-list li:last-child{border-bottom:1px solid var(--line)}
.check-list .num{
  font-family:'Inter',system-ui,sans-serif;font-size:13px;font-weight:700;color:var(--clay);
  flex:0 0 26px;padding-top:3px;letter-spacing:.04em;
}
.check-list strong{display:block;font-size:16px;color:var(--ink);margin-bottom:4px}
.check-list span.desc{font-size:14px;color:var(--text-2);line-height:1.8}
.shot{border-radius:var(--r-deep);overflow:hidden;box-shadow:var(--sh-md);position:relative}
.shot img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/12}
.shot-tag{
  position:absolute;left:18px;bottom:18px;background:rgba(18,48,44,.86);color:#F7F5F0;
  font-size:12px;padding:6px 12px;border-radius:var(--r-badge);letter-spacing:.04em;
}

/* ---------- 流程步骤 ---------- */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.flow-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--sh-sm);transition:transform .2s ease,box-shadow .2s ease;
}
.flow-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg)}
.flow-num{
  font-family:'Inter',system-ui,sans-serif;font-size:28px;font-weight:800;color:var(--ink);
  letter-spacing:-.02em;line-height:1;margin-bottom:16px;
}
.flow-card h3{font-size:18px;margin-bottom:10px}
.flow-card p{font-size:14px;color:var(--text-2);line-height:1.8;margin:0}

/* ---------- 数据条 ---------- */
.stats-sec{background:var(--deep);color:#F7F5F0;position:relative;overflow:hidden}
.stats-sec::after{
  content:"";position:absolute;left:-120px;top:-140px;width:380px;height:380px;border-radius:50%;
  border:1.5px solid rgba(247,245,240,.08);
}
.stats-sec .wrap{position:relative;z-index:2}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:32px}
.stat b{display:block;font-family:'Inter',system-ui,sans-serif;font-size:40px;font-weight:800;color:#fff;line-height:1.1;letter-spacing:-.02em}
.stat span{display:block;font-size:14px;color:rgba(247,245,240,.7);margin-top:8px}
.stat + .stat{border-left:1px solid rgba(247,245,240,.14);padding-left:32px}

/* ---------- 设备卡片 ---------- */
.cards-3{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.g-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-sm);display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease;
}
.g-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg)}
.g-card .thumb{overflow:hidden;aspect-ratio:16/10}
.g-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .25s ease}
.g-card:hover .thumb img{transform:scale(1.04)}
.g-card .body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1}
.badge-k{
  display:inline-block;font-size:12px;font-weight:600;color:var(--ink);background:rgba(127,167,155,.16);
  border-radius:var(--r-badge);padding:4px 9px;width:fit-content;letter-spacing:.03em;
}
.g-card h3{font-size:18px}
.g-card p{font-size:14px;color:var(--text-2);line-height:1.8;margin:0}
.g-card .foot{margin-top:auto;padding-top:6px;font-size:14px;font-weight:600;color:var(--ink)}

/* ---------- 行式列表 ---------- */
.rows{border-top:1px solid var(--line)}
.row-item{
  display:flex;align-items:center;gap:20px;padding:22px 20px;border-bottom:1px solid var(--line);
  transition:background .2s ease,padding-left .2s ease;
}
.row-item:hover{background:#fff;padding-left:26px}
.row-item .ic{
  flex:0 0 40px;width:40px;height:40px;border-radius:12px;background:rgba(23,64,58,.07);
  display:grid;place-items:center;color:var(--ink);font-size:15px;
}
.row-item .txt{flex:1;min-width:0}
.row-item h3{font-size:16px;margin-bottom:4px}
.row-item p{font-size:14px;color:var(--text-2);margin:0;line-height:1.75}
.row-item .tag{
  flex-shrink:0;font-size:12px;font-weight:600;color:var(--ink-2);
  background:rgba(127,167,155,.16);border-radius:var(--r-badge);padding:5px 10px;
}

/* ---------- FAQ ---------- */
.faq-list{max-width:860px;margin:0 auto}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:12px;
  overflow:hidden;transition:box-shadow .2s ease,border-color .2s ease;
}
.faq-item[open]{box-shadow:var(--sh-md);border-left:3px solid var(--clay)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 24px;font-size:17px;font-weight:600;color:var(--ink);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-plus{position:relative;flex:0 0 16px;width:16px;height:16px;transition:transform .25s ease}
.faq-plus::before,.faq-plus::after{
  content:"";position:absolute;background:var(--ink);border-radius:2px;
}
.faq-plus::before{left:0;top:7px;width:16px;height:1.5px}
.faq-plus::after{left:7px;top:0;width:1.5px;height:16px}
.faq-item[open] .faq-plus{transform:rotate(45deg)}
.faq-item[open] .faq-plus::before,.faq-item[open] .faq-plus::after{background:var(--clay)}
.faq-body{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--text-2);max-width:70ch}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--deep);color:#F7F5F0;border-radius:var(--r-deep);
  padding:56px;display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-90px;width:320px;height:320px;border-radius:50%;
  border:1.5px solid rgba(247,245,240,.09);
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,30px);margin-bottom:14px}
.cta-band p{color:rgba(247,245,240,.78);font-size:15px;margin:0}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;position:relative;z-index:2}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--deep);color:rgba(247,245,240,.72);padding:72px 0 0;margin-top:96px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:52px}
.site-foot .brand{color:#fff;margin-bottom:18px}
.site-foot .brand:hover{color:#fff}
.site-foot .about{font-size:14px;line-height:1.85;color:rgba(247,245,240,.62);max-width:34ch}
.socials{display:flex;gap:12px;margin-top:22px}
.socials a{
  width:36px;height:36px;border-radius:10px;border:1px solid rgba(247,245,240,.18);
  display:grid;place-items:center;color:rgba(247,245,240,.75);transition:.2s ease;
}
.socials a:hover{color:#fff;border-color:rgba(247,245,240,.55);background:rgba(247,245,240,.07)}
.socials svg{width:17px;height:17px;stroke:currentColor}
.foot-col h4{
  color:#fff;font-size:15px;font-weight:700;margin-bottom:20px;letter-spacing:.02em;
}
.foot-links{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:12px}
.foot-links a{font-size:14px;color:rgba(247,245,240,.68);text-decoration:none}
.foot-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.foot-note{font-size:13px;color:rgba(247,245,240,.48);line-height:1.8;margin-top:16px}
.foot-bar{
  border-top:1px solid rgba(247,245,240,.12);padding:22px 0 26px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  font-size:13px;color:rgba(247,245,240,.5);
}
.foot-bar p{margin:0}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .cmd-search{width:180px}
  .cmd-search:focus-within{width:220px}
  .main-nav{gap:20px}
  .section{padding:80px 0}
  .check-grid{gap:40px}
}
@media (max-width:991.98px){
  .main-nav{display:none}
  .cmd-search{display:none}
  .burger{display:flex}
  .head-inner{height:60px;gap:16px}
  .section{padding:72px 0}
  .check-grid{grid-template-columns:1fr;gap:36px}
  .flow{grid-template-columns:repeat(2,1fr)}
  .cards-3{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr);gap:28px}
  .stat + .stat{border-left:0;padding-left:0}
  .cta-band{grid-template-columns:1fr;padding:44px}
  .cta-actions{justify-content:flex-start}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767.98px){
  .wrap{padding:0 20px}
  .ghost-link{display:none}
  .brand-text{font-size:15px;max-width:9.5em;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .cat-hero{padding:38px 0 48px}
  .cat-hero h1{font-size:30px}
  .cat-hero p.lead{font-size:15px}
  .section{padding:56px 0}
  .section.tight{padding:52px 0}
  .sec-head{margin-bottom:32px}
  .flow{grid-template-columns:1fr}
  .cards-3{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr;gap:22px}
  .stat b{font-size:32px}
  .row-item{flex-wrap:wrap;gap:14px;padding:20px 0}
  .row-item:hover{padding-left:0;background:transparent}
  .row-item .tag{margin-left:54px}
  .cta-band{padding:32px 24px}
  .cta-actions{flex-direction:column;align-items:stretch}
  .cta-actions .btn-k{width:100%}
  .site-foot{padding-top:52px;margin-top:64px}
  .foot-grid{grid-template-columns:1fr;gap:8px;padding-bottom:32px}
  .foot-col{border-bottom:1px solid rgba(247,245,240,.12);padding:16px 0}
  .foot-col h4{margin-bottom:0;display:flex;justify-content:space-between;align-items:center;cursor:pointer}
  .foot-col h4::after{content:"+";font-weight:400;color:rgba(247,245,240,.5)}
  .foot-col.open h4::after{content:"–"}
  .foot-body{display:none;padding-top:16px}
  .foot-col.open .foot-body{display:block}
  .foot-col:first-child{border-bottom:1px solid rgba(247,245,240,.12)}
  .foot-col:first-child .about{display:block}
  .foot-bar{flex-direction:column;align-items:flex-start}
}

/* roulang page: category2 */
:root{
  --ink:#17403A;
  --ink-2:#2C6B5F;
  --mist:#7FA79B;
  --clay:#E0713C;
  --clay-d:#C85F2E;
  --bg:#F7F5F0;
  --card:#FFFFFF;
  --deep:#12302C;
  --tx:#1A2422;
  --tx-2:#5A6A65;
  --tx-3:#8B9993;
  --bd:#E3E1DA;
  --r-card:16px;
  --r-img:14px;
  --r-deep:20px;
  --r-input:12px;
  --r-badge:6px;
  --r-pill:999px;
  --sh-sm:0 1px 2px rgba(23,64,58,.06);
  --sh-md:0 8px 24px rgba(23,64,58,.08);
  --sh-lg:0 18px 48px rgba(23,64,58,.12);
  --font-cn:'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --font-num:'Inter',system-ui,-apple-system,sans-serif;
  --bs-primary:#17403A;
  --bs-body-font-family:'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --bs-body-color:#1A2422;
  --bs-body-bg:#F7F5F0;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--tx);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease}
p{margin:0 0 16px}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;letter-spacing:-.02em;color:var(--ink)}
ul{margin:0;padding:0;list-style:none}
button{font:inherit;cursor:pointer}
input,textarea{font:inherit}
:focus-visible{outline:none;box-shadow:0 0 0 4px rgba(23,64,58,.3);border-radius:6px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;padding:10px 16px;border-radius:0 0 10px 0;z-index:200}
.skip-link:focus{left:0}

.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1400px){.wrap{max-width:1260px}}

/* ---------- 导航 ---------- */
.site-head{
  position:sticky;top:0;z-index:60;
  background:rgba(247,245,240,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--bd);
}
.head-inner{display:flex;align-items:center;gap:20px;height:64px;position:relative}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:17px;color:var(--ink);letter-spacing:-.01em}
.brand-mark{
  width:34px;height:34px;flex:0 0 auto;border-radius:11px;background:var(--ink);
  display:grid;place-items:center;box-shadow:var(--sh-sm);
}
.brand-mark svg{width:18px;height:18px;stroke:#F7F5F0;fill:none}
.brand-text{white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:6px}
.main-nav a{
  position:relative;padding:8px 12px;font-size:15px;font-weight:500;color:var(--tx-2);border-radius:8px;
}
.main-nav a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;background:var(--clay);
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.main-nav a:hover{color:var(--ink)}
.main-nav a:hover::after{transform:scaleX(1)}
.main-nav a.active{color:var(--ink);font-weight:700}
.main-nav a.active::after{transform:scaleX(1)}
.head-tools{margin-left:auto;display:flex;align-items:center;gap:12px}
.cmd-search{
  display:flex;align-items:center;gap:8px;width:220px;height:40px;padding:0 12px;
  background:#fff;border:1px solid var(--bd);border-radius:var(--r-pill);cursor:text;
  transition:width .25s ease,border-color .2s ease,box-shadow .2s ease;
}
.cmd-search svg{width:16px;height:16px;flex:0 0 auto;stroke:var(--tx-3);fill:none}
.cmd-search input{
  flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:14px;color:var(--tx);
}
.cmd-search input::placeholder{color:var(--tx-3)}
.cmd-search kbd{
  font-family:var(--font-num);font-size:12px;color:var(--tx-3);
  border:1px solid var(--bd);border-radius:4px;padding:1px 5px;background:var(--bg);
}
.cmd-search:focus-within{width:320px;border-color:var(--ink);box-shadow:0 0 0 4px rgba(23,64,58,.1)}
.ghost-link{font-size:15px;font-weight:500;color:var(--tx-2)}
.ghost-link:hover{color:var(--ink);text-decoration:underline;text-underline-offset:4px}
.btn-k{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1.5px solid transparent;border-radius:var(--r-pill);
  padding:12px 24px;font-size:15px;font-weight:600;line-height:1.2;
  transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn-clay{background:var(--clay);color:#fff;box-shadow:var(--sh-sm)}
.btn-clay:hover{background:var(--clay-d);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-md)}
.btn-clay:active{transform:translateY(0)}
.btn-outline{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-outline:hover{background:rgba(23,64,58,.08);color:var(--ink)}
.btn-ghost{background:transparent;border-color:transparent;color:var(--ink);padding-left:6px;padding-right:6px}
.btn-ghost:hover{text-decoration:underline;text-underline-offset:4px}
.btn-sm-k{padding:9px 18px;font-size:14px}
.btn-on-deep{background:var(--clay);color:#fff}
.btn-on-deep:hover{background:var(--clay-d);color:#fff}
.burger{
  display:none;width:40px;height:40px;border:1px solid var(--bd);background:#fff;border-radius:12px;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.burger span{display:block;width:18px;height:1.8px;background:var(--ink);border-radius:2px;transition:transform .22s ease,opacity .22s ease}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(6.8px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6.8px) rotate(-45deg)}

.mask{
  position:fixed;inset:0;background:rgba(18,48,44,.45);z-index:80;
  opacity:0;pointer-events:none;transition:opacity .25s ease;
}
.mask.open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;z-index:90;height:100%;width:85%;max-width:360px;
  background:#fff;box-shadow:var(--sh-lg);padding:22px 22px 28px;
  transform:translateX(102%);transition:transform .28s ease;
  display:none;flex-direction:column;
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;padding-bottom:14px;border-bottom:1px solid var(--bd)}
.drawer-close{width:36px;height:36px;border:1px solid var(--bd);background:#fff;border-radius:10px;color:var(--ink);font-size:18px;line-height:1}
.drawer nav{display:flex;flex-direction:column}
.drawer nav a{
  display:flex;align-items:center;height:56px;font-size:18px;color:var(--ink);border-bottom:1px solid var(--bd);
}
.drawer nav a.active{color:var(--clay);font-weight:700}
.drawer-foot{margin-top:auto;padding-top:18px}
.drawer-foot .btn-k{width:100%}

/* ---------- 分类 Hero ---------- */
.cat-hero{position:relative;overflow:hidden;border-radius:0 0 var(--r-deep) var(--r-deep);isolation:isolate}
.cat-hero-bg{
  position:absolute;inset:0;z-index:-2;
  background-image:url(/assets/images/backpic/back-2.webp);
  background-size:cover;background-position:center;
}
.cat-hero-veil{
  position:absolute;inset:0;z-index:-1;
  background:linear-gradient(100deg,rgba(18,48,44,.93) 0%,rgba(23,64,58,.86) 48%,rgba(23,64,58,.66) 100%);
}
.cat-hero-inner{position:relative;padding:56px 0 60px;min-height:320px;display:flex;flex-direction:column;justify-content:center}
.cloud-arc{position:absolute;right:-40px;bottom:-50px;width:420px;height:300px;opacity:.1;pointer-events:none}
.crumb{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(247,245,240,.72);margin-bottom:18px;flex-wrap:wrap}
.crumb a{color:rgba(247,245,240,.72)}
.crumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.crumb span{opacity:.6}
.cat-hero h1{
  color:#F7F5F0;font-size:44px;font-weight:800;letter-spacing:-.02em;max-width:19em;
}
.cat-hero h1 em{font-style:normal;color:#F2C9AE;display:block;font-size:20px;font-weight:500;letter-spacing:0;margin-top:12px}
.hero-lead{color:rgba(247,245,240,.86);font-size:17px;max-width:640px;margin:16px 0 0}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.cat-hero .btn-outline{border-color:rgba(247,245,240,.55);color:#F7F5F0}
.cat-hero .btn-outline:hover{background:rgba(247,245,240,.14);color:#fff}

/* ---------- 板块 ---------- */
.sec{padding:96px 0}
.sec-alt{background:#fff}
.sec-head{max-width:720px;margin-bottom:44px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.kicker{
  display:inline-block;font-size:12px;font-weight:600;letter-spacing:.08em;
  color:var(--ink);background:rgba(127,167,155,.24);border-radius:var(--r-badge);
  padding:4px 9px;margin-bottom:14px;
}
.sec-title{font-size:32px;font-weight:800}
.sec-desc{color:var(--tx-2);font-size:16px;margin-top:14px;max-width:62ch}

/* ---------- 卡片 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.card-k{
  background:var(--card);border:1px solid var(--bd);border-radius:var(--r-card);
  box-shadow:var(--sh-md);padding:26px;display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card-k:hover{transform:translateY(-4px);box-shadow:var(--sh-lg);border-color:rgba(23,64,58,.2)}
.card-k .badge-k{margin-bottom:14px}
.card-title{font-size:18px;font-weight:700;margin-bottom:10px}
.card-text{color:var(--tx-2);font-size:15px;line-height:1.8;margin:0}
.card-foot{margin-top:18px;font-size:14px;font-weight:600;color:var(--ink)}
.card-foot:hover{color:var(--clay)}
.card-icon{
  width:42px;height:42px;border-radius:12px;background:rgba(23,64,58,.07);
  display:grid;place-items:center;margin-bottom:16px;
}
.card-icon svg{width:21px;height:21px;fill:none;stroke:var(--ink);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.badge-k{
  display:inline-block;font-size:12px;font-weight:600;line-height:1.6;
  color:var(--ink);background:rgba(127,167,155,.24);
  border-radius:var(--r-badge);padding:3px 9px;
}
.media{overflow:hidden;border-radius:var(--r-img);border:1px solid var(--bd);background:rgba(23,64,58,.06)}
.media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0;transition:transform .35s ease}
.media:hover img{transform:scale(1.04)}

/* ---------- 图文分栏 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split.narrow-left{grid-template-columns:5fr 7fr}
.split h2{font-size:32px;margin-bottom:16px}
.split p{color:var(--tx-2)}
.check-list{margin-top:22px;display:flex;flex-direction:column;gap:14px}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--tx)}
.check-list li::before{
  content:"";flex:0 0 auto;width:18px;height:18px;margin-top:5px;border-radius:50%;
  background:rgba(224,113,60,.16);
  box-shadow:inset 0 0 0 1.5px var(--clay);
}
.split-media{position:relative}
.split-media .tag{
  position:absolute;left:18px;bottom:18px;background:#fff;border-radius:var(--r-pill);
  padding:8px 16px;font-size:13px;font-weight:600;color:var(--ink);box-shadow:var(--sh-md);
}

/* ---------- 步骤流程图 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.step-card{
  background:#fff;border:1px solid var(--bd);border-radius:var(--r-card);padding:24px;
  box-shadow:var(--sh-sm);transition:transform .2s ease,box-shadow .2s ease;
}
.step-card:hover{transform:translateY(-4px) translateX(4px);box-shadow:var(--sh-md)}
.step-num{
  font-family:var(--font-num);font-size:26px;font-weight:700;color:var(--clay);
  letter-spacing:-.02em;display:block;margin-bottom:10px;
}
.step-card h3{font-size:18px;margin-bottom:8px}
.step-card p{font-size:15px;color:var(--tx-2);margin:0}

/* ---------- 常见情况 ---------- */
.cases{display:grid;grid-template-columns:repeat(2,1fr);gap:0 40px}
.case-item{
  display:flex;gap:16px;padding:22px 0;border-bottom:1px solid var(--bd);
  transition:transform .2s ease;
}
.case-item:hover{transform:translateX(4px)}
.case-item:hover .case-idx{color:var(--clay)}
.case-idx{font-family:var(--font-num);font-size:13px;font-weight:600;color:var(--tx-3);padding-top:3px;flex:0 0 auto}
.case-item h3{font-size:17px;margin-bottom:6px}
.case-item p{font-size:15px;color:var(--tx-2);margin:0}

/* ---------- 数据条 ---------- */
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  background:#fff;border:1px solid var(--bd);border-radius:var(--r-deep);
  padding:36px 32px;box-shadow:var(--sh-md);
}
.stat-num{font-family:var(--font-num);font-size:40px;font-weight:700;color:var(--ink);line-height:1.1;letter-spacing:-.02em}
.stat-num span{font-size:16px;font-weight:500;color:var(--tx-2);margin-left:4px}
.stat-label{font-size:14px;color:var(--tx-2);margin-top:8px}

/* ---------- FAQ ---------- */
.faq{max-width:880px;margin:0 auto}
.faq-item{
  background:#fff;border:1px solid var(--bd);border-radius:12px;box-shadow:var(--sh-sm);
  margin-bottom:12px;padding:6px 20px;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{box-shadow:var(--sh-md)}
.faq-item[open]{border-left:3px solid var(--clay)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:16px 0;font-size:17px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.plus{position:relative;flex:0 0 auto;width:16px;height:16px}
.plus::before,.plus::after{
  content:"";position:absolute;background:var(--ink);border-radius:2px;transition:transform .25s ease;
}
.plus::before{left:0;top:7.2px;width:16px;height:1.6px}
.plus::after{top:0;left:7.2px;width:1.6px;height:16px}
.faq-item[open] .plus::after{transform:rotate(90deg);opacity:0}
.faq-answer{padding:0 0 18px;font-size:15px;line-height:1.8;color:var(--tx-2);max-width:66ch}

/* ---------- CTA ---------- */
.cta-band{background:var(--deep);position:relative;overflow:hidden;margin-top:0}
.cta-inner{
  display:grid;grid-template-columns:1.15fr 1fr;gap:48px;align-items:center;
  padding:72px 0;position:relative;z-index:1;
}
.cta-band h2{color:#F7F5F0;font-size:30px;margin-bottom:14px}
.cta-band p{color:rgba(247,245,240,.78);margin:0}
.cta-form{display:flex;gap:10px;flex-wrap:wrap}
.cta-form input{
  flex:1 1 220px;height:48px;min-width:0;padding:0 16px;border-radius:var(--r-pill);
  border:1px solid rgba(247,245,240,.28);background:rgba(247,245,240,.08);color:#F7F5F0;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.cta-form input::placeholder{color:rgba(247,245,240,.55)}
.cta-form input:focus{outline:none;border-color:#F7F5F0;background:rgba(247,245,240,.14);box-shadow:0 0 0 4px rgba(247,245,240,.16)}
.form-note{font-size:14px;color:rgba(247,245,240,.62);margin-top:14px}
.form-status{font-size:14px;color:#F2C9AE;margin-top:12px;min-height:20px}
.cta-arc{position:absolute;right:-60px;top:-40px;width:460px;height:360px;opacity:.12;pointer-events:none}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--deep);color:rgba(247,245,240,.78);padding:72px 0 0}
.site-foot .brand{color:#F7F5F0}
.site-foot .brand-mark{background:rgba(247,245,240,.12)}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px}
.foot-col h4{font-size:15px;color:#F7F5F0;margin-bottom:18px;letter-spacing:0}
.foot-col .about{font-size:14px;line-height:1.85;color:rgba(247,245,240,.68);margin:18px 0 0;max-width:34ch}
.socials{display:flex;gap:10px;margin-top:20px}
.socials a{
  width:36px;height:36px;border-radius:10px;border:1px solid rgba(247,245,240,.2);
  display:grid;place-items:center;transition:background .2s ease,border-color .2s ease;
}
.socials a:hover{background:rgba(247,245,240,.12);border-color:rgba(247,245,240,.4)}
.socials svg{width:17px;height:17px;fill:none;stroke:rgba(247,245,240,.8);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.foot-links li{margin-bottom:11px}
.foot-links a{font-size:14px;color:rgba(247,245,240,.72)}
.foot-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.foot-note{font-size:14px;color:rgba(247,245,240,.6);margin-top:16px;line-height:1.9}
.foot-bar{
  margin-top:56px;padding:22px 0 30px;border-top:1px solid rgba(247,245,240,.14);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.foot-bar p{font-size:13px;color:rgba(247,245,240,.55);margin:0}
.foot-bar a{color:rgba(247,245,240,.72)}
.foot-bar a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .cat-hero h1{font-size:38px}
  .grid-3{grid-template-columns:repeat(3,1fr)}
  .split{gap:40px}
}
@media (max-width:991px){
  .main-nav{display:none}
  .ghost-link{display:none}
  .burger{display:flex}
  .drawer{display:flex}
  .cmd-search{width:40px;height:40px;padding:0;justify-content:center}
  .cmd-search input,.cmd-search kbd{display:none}
  .cmd-search.open{
    position:absolute;left:0;right:0;top:10px;width:auto;height:44px;z-index:70;
    justify-content:flex-start;padding:0 14px;background:#fff;box-shadow:var(--sh-md);
    transform:translateX(0);margin-left:0;
  }
  .cmd-search.open input{display:block}
  .sec{padding:72px 0}
  .cat-hero h1{font-size:34px}
  .sec-title,.split h2{font-size:27px}
  .split{grid-template-columns:1fr;gap:32px}
  .split.narrow-left{grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr);padding:28px 24px}
  .stat-num{font-size:34px}
  .cta-inner{grid-template-columns:1fr;gap:28px;padding:56px 0}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  body{font-size:16px}
  .wrap{padding:0 20px}
  .sec{padding:56px 0}
  .cat-hero-inner{padding:40px 0 44px;min-height:280px}
  .cat-hero h1{font-size:29px}
  .cat-hero h1 em{font-size:16px}
  .hero-lead{font-size:15px}
  .sec-title,.split h2{font-size:24px}
  .grid-3,.grid-2,.steps,.cases{grid-template-columns:1fr}
  .case-item{padding:18px 0}
  .stats{grid-template-columns:1fr 1fr;gap:16px}
  .cta-band h2{font-size:23px}
  .cta-form{flex-direction:column}
  .cta-form .btn-k{width:100%}
  .foot-grid{grid-template-columns:1fr;gap:0}
  .foot-col{border-bottom:1px solid rgba(247,245,240,.14);padding:16px 0}
  .foot-col h4{margin:0;display:flex;align-items:center;justify-content:space-between;cursor:pointer}
  .foot-col h4::after{content:"+";font-size:18px;color:rgba(247,245,240,.6);transition:transform .2s ease}
  .foot-col.open h4::after{transform:rotate(45deg)}
  .foot-body{max-height:0;overflow:hidden;transition:max-height .3s ease}
  .foot-col.open .foot-body{max-height:520px}
  .foot-col .about{margin-top:16px}
  .foot-bar{margin-top:36px;flex-direction:column;gap:10px}
}

/* roulang page: category3 */
:root{
  --ink:#17403A;
  --ink-soft:#2C6B5F;
  --mist:#7FA79B;
  --clay:#E0713C;
  --clay-dark:#C75F2E;
  --paper:#F7F5F0;
  --card:#FFFFFF;
  --deep:#12302C;
  --text:#1A2422;
  --text-2:#5A6A65;
  --text-3:#8B9993;
  --line:#E3E1DA;
  --r-card:16px;
  --r-img:14px;
  --r-block:20px;
  --r-input:12px;
  --r-badge:6px;
  --sh-sm:0 1px 2px rgba(23,64,58,.06);
  --sh-md:0 8px 24px rgba(23,64,58,.08);
  --sh-lg:0 18px 48px rgba(23,64,58,.12);
  --bs-primary:#17403A;
  --bs-body-color:#1A2422;
  --bs-body-bg:#F7F5F0;
  --bs-border-color:#E3E1DA;
  --bs-link-color:#17403A;
  --bs-link-hover-color:#2C6B5F;
  --bs-font-sans-serif:'Noto Sans SC','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:'Noto Sans SC','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--ink);text-decoration:none;transition:color .2s ease,border-color .2s ease}
a:hover{color:var(--ink-soft)}
button{font-family:inherit}
h1,h2,h3,h4{color:var(--ink);line-height:1.25;letter-spacing:-.02em;font-weight:700;margin:0}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(23,64,58,.28);border-radius:8px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1400px){.wrap{max-width:1260px}}

/* ---------- 头部 ---------- */
.site-head{
  position:sticky;top:0;z-index:60;
  background:rgba(247,245,240,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.head-inner{display:flex;align-items:center;gap:28px;height:64px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:32px;height:32px;flex:0 0 32px;border-radius:10px;
  background:var(--ink);display:grid;place-items:center;
}
.brand-mark svg{width:18px;height:18px}
.brand-text{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:-.01em;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:8px}
.main-nav a{
  position:relative;font-size:15px;font-weight:500;color:var(--text-2);
  padding:6px 0;white-space:nowrap;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--clay);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .22s ease;
}
.main-nav a:hover{color:var(--ink)}
.main-nav a:hover::after{transform:scaleX(1)}
.main-nav a.active{color:var(--ink);font-weight:700}
.main-nav a.active::after{transform:scaleX(1)}
.head-tools{display:flex;align-items:center;gap:14px;margin-left:auto}
.cmd-search{
  display:flex;align-items:center;gap:8px;
  width:220px;height:40px;padding:0 12px;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  transition:width .25s ease,border-color .2s ease,box-shadow .2s ease;
  cursor:text;margin:0;
}
.cmd-search svg{width:16px;height:16px;stroke:var(--text-3);flex:0 0 16px;fill:none}
.cmd-search input{
  border:0;outline:none;background:transparent;font-size:14px;width:100%;
  color:var(--text);min-width:0;
}
.cmd-search input::placeholder{color:var(--text-3)}
.cmd-search kbd{
  font-size:12px;font-family:'Inter',system-ui,sans-serif;color:var(--text-3);
  background:var(--paper);border:1px solid var(--line);border-radius:6px;
  padding:1px 6px;white-space:nowrap;
}
.cmd-search:focus-within{width:320px;border-color:var(--ink);box-shadow:0 0 0 3px rgba(23,64,58,.10)}
.ghost-link{font-size:15px;font-weight:500;color:var(--text-2)}
.ghost-link:hover{color:var(--ink);text-decoration:underline;text-underline-offset:4px}

/* ---------- 按钮 ---------- */
.btn-k{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  border-radius:999px;font-size:15px;font-weight:600;
  padding:12px 24px;border:1.5px solid transparent;cursor:pointer;
  transition:transform .2s ease,background-color .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;
}
.btn-clay{background:var(--clay);color:#fff}
.btn-clay:hover{background:var(--clay-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-md)}
.btn-outline-k{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-outline-k:hover{background:rgba(23,64,58,.08);color:var(--ink)}
.btn-sm-k{padding:9px 18px;font-size:14px}
.burger{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line);
  background:#fff;cursor:pointer;
}
.burger span{display:block;height:1.8px;width:18px;margin:0 auto;background:var(--ink);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(6.8px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6.8px) rotate(-45deg)}
.burger:hover{border-color:var(--ink)}

/* ---------- 移动抽屉 ---------- */
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:85%;max-width:360px;
  background:var(--paper);z-index:90;transform:translateX(102%);
  transition:transform .28s ease;display:flex;flex-direction:column;
  padding:22px 24px 28px;box-shadow:var(--sh-lg);overflow-y:auto;
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-head .brand-text{font-size:16px}
.drawer-close{
  width:38px;height:38px;border-radius:12px;border:1px solid var(--line);
  background:#fff;font-size:20px;line-height:1;color:var(--ink);cursor:pointer;
}
.drawer-close:hover{border-color:var(--ink)}
.drawer-nav{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.drawer-nav a{
  font-size:18px;font-weight:500;color:var(--text);padding:16px 2px;
  border-bottom:1px solid var(--line);
}
.drawer-nav a.active{color:var(--ink);font-weight:700}
.drawer-nav a:hover{color:var(--ink-soft)}
.drawer .drawer-cta{margin-top:auto;width:100%;padding:14px 20px}
.drawer-mask{
  position:fixed;inset:0;background:rgba(18,48,44,.42);z-index:80;
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;
}
.drawer-mask.open{opacity:1;visibility:visible}

/* ---------- 分类 Hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;
  min-height:320px;display:flex;align-items:center;
  padding:76px 0 68px;
  background:linear-gradient(120deg,rgba(18,48,44,.90) 8%,rgba(23,64,58,.74) 62%,rgba(23,64,58,.66) 100%),
             url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  color:#F7F5F0;
}
.cat-hero::after{
  content:"";position:absolute;right:-60px;top:-70px;width:340px;height:340px;
  border:1.5px solid rgba(247,245,240,.14);border-radius:50%;
  pointer-events:none;
}
.crumb{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(247,245,240,.72);margin-bottom:18px;position:relative;z-index:1}
.crumb a{color:rgba(247,245,240,.72)}
.crumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.crumb .cur{color:#fff}
.cat-hero h1{
  color:#F7F5F0;font-size:42px;font-weight:800;max-width:820px;
  position:relative;z-index:1;
}
.hero-sub{
  margin-top:16px;font-size:17px;line-height:1.8;color:rgba(247,245,240,.84);
  max-width:640px;position:relative;z-index:1;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;position:relative;z-index:1}
.hero-tags span{
  font-size:13px;color:rgba(247,245,240,.9);
  border:1px solid rgba(247,245,240,.28);border-radius:999px;padding:5px 14px;
  background:rgba(247,245,240,.06);
}

/* ---------- 板块 ---------- */
.sec{padding:96px 0}
.sec-alt{background:#FBF9F5;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:780px;margin-bottom:44px}
.kicker{
  display:inline-block;font-size:12px;font-weight:600;letter-spacing:.08em;
  color:var(--ink);background:rgba(127,167,155,.16);
  border-radius:var(--r-badge);padding:4px 10px;margin-bottom:14px;
}
.sec-head h2{font-size:32px;font-weight:800}
.sec-head .lead{margin-top:14px;font-size:16px;color:var(--text-2);line-height:1.85;max-width:660px}

/* ---------- 对照表 ---------- */
.table-sheet{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-md);overflow:hidden;
}
.table-scroll{overflow-x:auto}
.cmp-table{width:100%;border-collapse:collapse;min-width:640px}
.cmp-table thead th{
  background:var(--paper);font-size:13px;font-weight:600;letter-spacing:.06em;
  color:var(--text-2);text-align:left;padding:16px 26px;
  border-bottom:1px solid var(--line);
}
.cmp-table td{
  padding:20px 26px;border-bottom:1px solid var(--line);
  font-size:15.5px;color:var(--text-2);line-height:1.8;vertical-align:top;
}
.cmp-table tbody tr:last-child td{border-bottom:0}
.cmp-table tbody tr{transition:background-color .2s ease}
.cmp-table tbody tr:hover{background:#FBFAF7}
.cmp-table td:first-child{color:var(--text);font-weight:600;width:34%}
.table-tip{margin-top:14px;font-size:13.5px;color:var(--text-3)}

/* ---------- 场景卡片 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.p-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-sm);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease;
}
.p-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg)}
.p-card .thumb{aspect-ratio:16/10;overflow:hidden;background:rgba(23,64,58,.08)}
.p-card .thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .3s ease}
.p-card:hover .thumb img{transform:scale(1.04)}
.p-card .body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.badge-k{
  align-self:flex-start;font-size:12px;font-weight:600;color:var(--ink);
  background:rgba(127,167,155,.16);border-radius:var(--r-badge);padding:3px 9px;
}
.p-card h3{font-size:18px;font-weight:700}
.p-card p{font-size:14.5px;color:var(--text-2);line-height:1.8}
.card-link{
  margin-top:auto;font-size:14px;font-weight:600;color:var(--ink);
  display:inline-flex;align-items:center;gap:6px;
}
.card-link::after{content:"→";transition:transform .2s ease}
.card-link:hover::after{transform:translateX(4px)}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);padding:26px 24px;box-shadow:var(--sh-sm);
  transition:transform .2s ease,box-shadow .2s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-md)}
.step .num{
  font-family:'Inter',system-ui,sans-serif;font-size:26px;font-weight:700;
  color:var(--clay);letter-spacing:-.02em;display:block;margin-bottom:12px;
}
.step h3{font-size:18px;margin-bottom:8px}
.step p{font-size:14.5px;color:var(--text-2);line-height:1.8}

/* ---------- 图文区 ---------- */
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center}
.split .figure{
  border-radius:var(--r-block);overflow:hidden;box-shadow:var(--sh-lg);
  background:rgba(23,64,58,.08);
}
.split .figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.split h2{font-size:32px;font-weight:800;margin-bottom:16px}
.split .intro{font-size:16px;color:var(--text-2);line-height:1.9;max-width:560px}
.check-list{margin-top:26px;display:grid;gap:14px}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;
  font-size:15.5px;color:var(--text);line-height:1.75;
}
.check-list li::before{
  content:"";flex:0 0 18px;width:18px;height:18px;margin-top:5px;border-radius:50%;
  background:rgba(224,113,60,.14);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23E0713C' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12.6l4.2 4.2L19 7.2'/%3E%3C/svg%3E");
  background-size:12px 12px;background-position:center;background-repeat:no-repeat;
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px}
.faq-list .accordion-item{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:12px;margin-bottom:12px;overflow:hidden;box-shadow:var(--sh-sm);
  transition:box-shadow .2s ease;
}
.faq-list .accordion-item.is-open{box-shadow:var(--sh-md)}
.faq-list .accordion-item.is-open::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--clay);z-index:2;
}
.faq-list .accordion-button{
  font-size:17px;font-weight:600;color:var(--text);background:#fff;
  padding:20px 24px;line-height:1.6;box-shadow:none;
}
.faq-list .accordion-button:not(.collapsed){color:var(--ink);background:#fff;box-shadow:none}
.faq-list .accordion-button:hover{color:var(--ink)}
.faq-list .accordion-button:focus{box-shadow:0 0 0 3px rgba(23,64,58,.16);z-index:3}
.faq-list .accordion-button::after{
  width:20px;height:20px;background-size:20px;flex:0 0 20px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2317403A' stroke-width='1.6' stroke-linecap='round'%3E%3Cpath d='M12 5v14M5 12h14'/%3E%3C/svg%3E");
  transition:transform .2s ease;
}
.faq-list .accordion-button:not(.collapsed)::after{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23E0713C' stroke-width='1.8' stroke-linecap='round'%3E%3Cpath d='M5 12h14'/%3E%3C/svg%3E");
  transform:rotate(180deg);
}
.faq-list .accordion-body{
  padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--text-2);
}
.faq-list .accordion-body strong{color:var(--ink);font-weight:600}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;background:var(--deep);color:#F7F5F0;
  border-radius:var(--r-block);padding:54px 56px;
  display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;bottom:-100px;width:300px;height:300px;
  border:1.5px solid rgba(247,245,240,.14);border-radius:50%;
}
.cta-band h2{color:#F7F5F0;font-size:30px;font-weight:800}
.cta-band p{margin-top:12px;font-size:15.5px;color:rgba(247,245,240,.78);line-height:1.8;max-width:460px}
.cta-form{display:flex;gap:12px;position:relative;z-index:1}
.cta-form input{
  flex:1;height:48px;border-radius:var(--r-input);border:1px solid rgba(247,245,240,.24);
  background:rgba(247,245,240,.08);color:#F7F5F0;padding:0 16px;font-size:15px;outline:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.cta-form input::placeholder{color:rgba(247,245,240,.5)}
.cta-form input:focus{border-color:var(--clay);box-shadow:0 0 0 3px rgba(224,113,60,.24)}
.cta-note{margin-top:14px;font-size:13px;color:rgba(247,245,240,.55);grid-column:1/-1}
.cta-msg{margin-top:10px;font-size:13.5px;color:var(--mist);display:none}
.cta-msg.show{display:block}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--deep);color:#F7F5F0;padding:72px 0 0;margin-top:96px}
.site-foot .brand-text{color:#F7F5F0}
.site-foot .brand-mark{background:rgba(247,245,240,.14)}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:44px}
.foot-col h4{color:#F7F5F0;font-size:15px;font-weight:700;margin-bottom:18px;letter-spacing:0}
.foot-col .about{margin-top:16px;font-size:14px;color:rgba(247,245,240,.62);line-height:1.85;max-width:300px}
.foot-links{display:grid;gap:11px}
.foot-links a{font-size:14px;color:rgba(247,245,240,.66)}
.foot-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.foot-note{margin-top:14px;font-size:13px;color:rgba(247,245,240,.5);line-height:1.8}
.socials{display:flex;gap:12px;margin-top:22px}
.socials a{
  width:36px;height:36px;border-radius:50%;display:grid;place-items:center;
  border:1px solid rgba(247,245,240,.2);transition:border-color .2s ease,background-color .2s ease;
}
.socials a svg{width:17px;height:17px;stroke:rgba(247,245,240,.7);fill:none}
.socials a:hover{border-color:#fff;background:rgba(247,245,240,.08)}
.socials a:hover svg{stroke:#fff}
.foot-bar{
  margin-top:56px;padding:22px 0;border-top:1px solid rgba(247,245,240,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(247,245,240,.5);
}
.foot-bar a{color:rgba(247,245,240,.6)}
.foot-bar a:hover{color:#fff}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .cmd-search{width:180px}
  .cmd-search:focus-within{width:230px}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .sec-head h2,.split h2{font-size:28px}
  .cat-hero h1{font-size:36px}
}
@media (max-width:991.98px){
  .main-nav{gap:18px}
  .main-nav a{font-size:14px}
  .ghost-link{display:none}
  .cmd-search{display:none}
  .sec{padding:72px 0}
  .steps{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:32px}
  .cta-band{grid-template-columns:1fr;padding:44px 40px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:767.98px){
  .head-inner{height:56px;gap:16px}
  .brand-text{font-size:15px}
  .main-nav{display:none}
  .burger{display:flex}
  .cat-hero{min-height:280px;padding:60px 0 52px}
  .cat-hero h1{font-size:30px}
  .hero-sub{font-size:15.5px}
  .sec{padding:56px 0}
  .sec-head h2,.split h2,.cta-band h2{font-size:24px}
  .card-grid{grid-template-columns:1fr;gap:20px}
  .steps{grid-template-columns:1fr;gap:16px}
  .cta-band{padding:34px 24px;border-radius:16px}
  .cta-form{flex-direction:column}
  .cta-form input{width:100%}
  .cta-form .btn-k{width:100%}
  .site-foot{padding-top:52px;margin-top:64px}
  .foot-grid{grid-template-columns:1fr;gap:0}
  .foot-col h4{
    cursor:pointer;display:flex;align-items:center;justify-content:space-between;
    margin:0;padding:16px 0;border-bottom:1px solid rgba(247,245,240,.12);
  }
  .foot-col h4::after{content:"+";font-size:18px;color:var(--mist);font-weight:400}
  .foot-col.open h4::after{content:"–"}
  .foot-body{max-height:0;overflow:hidden;transition:max-height .3s ease}
  .foot-col.open .foot-body{max-height:520px}
  .foot-col.brand-col .foot-body{max-height:none}
  .foot-col.brand-col{padding-bottom:22px;border-bottom:1px solid rgba(247,245,240,.12)}
  .foot-col:last-child{padding-bottom:8px}
  .foot-bar{margin-top:34px}
}