/* roulang page: index */
:root{
  --brand-700:#12544F;--brand-600:#176B63;--brand-100:#E3F0ED;
  --accent-500:#F0813B;--accent-600:#D96A24;--accent-tint:#FFF1E4;
  --ink-900:#0B2B29;--paper:#F6F4EF;--surface:#FFFFFF;--line:#E5E0D6;
  --text:#23282A;--muted:#6C7674;
  --success:#2E7D5B;--warn:#C9761F;--danger:#C0433A;
  --r-sm:10px;--r-md:14px;--r-lg:18px;--r-xl:24px;--r-pill:999px;
  --sh-1:0 1px 2px rgba(11,43,41,.04);
  --sh-2:0 10px 24px -12px rgba(11,43,41,.18);
  --sh-3:0 24px 48px -24px rgba(11,43,41,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--paper);color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.85;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand-600);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--accent-600)}
h1,h2,h3,h4{color:var(--ink-900);margin:0;font-weight:700;letter-spacing:-.2px}
h1{font-size:clamp(30px,4.6vw,46px);line-height:1.25}
h2{font-size:clamp(24px,3vw,34px);line-height:1.35}
h3{font-size:20px;line-height:1.5;font-weight:600}
h4{font-size:17px;line-height:1.6;font-weight:600}
p{margin:0 0 1.15em}
p:last-child{margin-bottom:0}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;border-radius:4px}
.container{max-width:1200px;padding-left:28px;padding-right:28px;margin:0 auto}
@media(min-width:1400px){.container{max-width:1280px}}
.section{padding:96px 0}
.section-sm{padding:72px 0}
@media(max-width:991px){.section{padding:72px 0}.section-sm{padding:60px 0}}
@media(max-width:575px){.section{padding:56px 0}.section-sm{padding:48px 0}.container{padding-left:20px;padding-right:20px}}
.lead-text{font-size:17px;line-height:1.85;color:var(--text);max-width:800px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;height:68px;
  background:rgba(246,244,239,.88);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh-1);border-bottom-color:#D9D2C4}
.nav-inner{height:68px;display:flex;align-items:center;gap:24px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;white-space:nowrap}
.brand-mark{
  width:28px;height:28px;border-radius:9px;background:var(--brand-700);
  position:relative;display:inline-block;flex:0 0 28px;
}
.brand-mark::after{
  content:"";position:absolute;right:4px;top:4px;width:8px;height:8px;
  border-radius:50%;background:var(--accent-500);
}
.brand-text{font-size:17px;font-weight:700;color:var(--brand-700);letter-spacing:-.2px}
.brand:hover .brand-text{color:var(--brand-700)}
.nav-menu{display:flex;align-items:center;gap:28px;margin:0 auto;padding:0;list-style:none}
.nav-menu a{
  position:relative;display:inline-block;font-size:15px;font-weight:500;color:var(--ink-900);
  padding:6px 0;line-height:1.4;
}
.nav-menu a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--accent-500);transform:scaleX(0);transform-origin:left;
  transition:transform .22s var(--ease);
}
.nav-menu a:hover{color:var(--brand-700);transform:translateY(0)}
.nav-menu a:hover::after{transform:scaleX(1)}
.nav-menu a.is-active{color:var(--brand-700)}
.nav-menu a.is-active::after{transform:scaleX(1)}
.nav-tools{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.cmd-search{
  display:flex;align-items:center;gap:8px;width:240px;height:38px;padding:0 12px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-pill);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.cmd-search:focus-within{border-color:var(--brand-600);box-shadow:0 0 0 4px rgba(23,107,99,.10)}
.cmd-search svg{flex:0 0 16px;stroke:var(--muted)}
.cmd-search input{
  border:0;outline:0;background:transparent;font-size:14px;color:var(--text);
  width:100%;font-family:inherit;
}
.cmd-search input::placeholder{color:#9AA3A1}
.cmd-search kbd{
  font-family:"Inter",ui-sans-serif,sans-serif;font-size:11px;color:var(--muted);
  border:1px solid var(--line);border-radius:6px;padding:1px 5px;background:var(--paper);
  flex:0 0 auto;
}
.icon-btn{
  width:36px;height:36px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:var(--r-sm);background:var(--surface);
  color:var(--brand-700);transition:all .2s var(--ease);
}
.icon-btn:hover{background:var(--brand-100);border-color:var(--brand-600);color:var(--brand-700)}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:40px;padding:0 22px;border:0;border-radius:var(--r-sm);
  background:var(--accent-500);color:#fff;font-size:15px;font-weight:600;font-family:inherit;
  transition:all .2s var(--ease);cursor:pointer;
}
.btn-main:hover{background:var(--accent-600);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-main:active{transform:translateY(0)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:40px;padding:0 22px;border:1px solid var(--brand-700);border-radius:var(--r-sm);
  background:transparent;color:var(--brand-700);font-size:15px;font-weight:600;font-family:inherit;
  transition:all .2s var(--ease);cursor:pointer;
}
.btn-ghost:hover{background:var(--brand-100);color:var(--brand-700)}
.btn-link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand-700);
}
.btn-link-arrow svg{transition:transform .2s var(--ease)}
.btn-link-arrow:hover svg{transform:translateX(3px)}
.btn-lg{height:48px;padding:0 28px;font-size:16px}
.btn-block{width:100%}
.hamburger{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:var(--r-sm);background:var(--surface);
  color:var(--brand-700);cursor:pointer;
}
.offcanvas{background:var(--surface);width:320px}
.offcanvas-header{border-bottom:1px solid var(--line);padding:20px}
.offcanvas-body{padding:20px}
.mobile-nav{list-style:none;padding:0;margin:0 0 24px}
.mobile-nav li{border-bottom:1px solid var(--line)}
.mobile-nav a{display:block;padding:14px 2px;font-size:15px;font-weight:500;color:var(--ink-900)}
.mobile-nav a:hover{color:var(--brand-700)}
.mobile-nav a.is-active{color:var(--brand-700)}
.mobile-search{margin-bottom:20px}
.mobile-actions{display:grid;gap:12px}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:88px 0 96px}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(720px 420px at 84% 8%, rgba(240,129,59,.08), transparent 68%);
}
.hero-grid{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:20px}
.badge-pill{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:var(--r-pill);
  background:var(--brand-100);color:var(--brand-700);font-size:12.5px;font-weight:600;line-height:1.5;
}
.badge-pill.mono{font-family:"Inter",ui-sans-serif,sans-serif;letter-spacing:.02em}
.badge-pill.warm{background:var(--accent-tint);color:var(--accent-600)}
.hero h1{margin-bottom:18px}
.hero-sub{font-size:17px;line-height:1.85;color:var(--muted);max-width:560px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-bottom:26px}
.hero-points{display:flex;flex-wrap:wrap;gap:18px;list-style:none;padding:0;margin:0}
.hero-points li{
  display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);line-height:1.6;
}
.hero-points li svg{flex:0 0 20px;stroke:var(--accent-500)}
.hero-points li+li{padding-left:18px;border-left:1px solid var(--line)}
.hero-visual{position:relative}
.device-frame{
  border-radius:var(--r-xl);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--sh-3);background:var(--surface);
}
.device-frame img{width:100%;aspect-ratio:16/11;object-fit:cover}
.float-card{
  position:absolute;left:-18px;bottom:-24px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);padding:12px 16px;box-shadow:var(--sh-2);display:flex;align-items:center;gap:12px;
}
.float-card .num{font-size:20px;font-weight:700;color:var(--brand-700);font-family:"Inter",ui-sans-serif,sans-serif;line-height:1.2}
.float-card .lbl{font-size:12.5px;color:var(--muted);line-height:1.5}
@media(max-width:991px){
  .hero{padding:64px 0 80px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-visual{order:2}
  .float-card{left:12px;bottom:-20px}
}
@media(max-width:575px){
  .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%}
  .hero-points{gap:12px}
  .hero-points li+li{padding-left:0;border-left:0}
}

/* ---------- section head ---------- */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px}
.section-label{
  display:inline-flex;align-items:center;gap:10px;font-size:12px;letter-spacing:.12em;
  color:var(--muted);text-transform:uppercase;margin-bottom:12px;font-family:"Inter",ui-sans-serif,sans-serif;
}
.section-label::before{content:"";width:3px;height:18px;border-radius:2px;background:var(--accent-500)}
.section-title{display:flex;align-items:center;gap:12px}
.section-title::before{content:"";width:3px;height:24px;border-radius:2px;background:var(--accent-500);flex:0 0 3px}
.section-desc{font-size:15px;color:var(--muted);margin-top:12px;max-width:760px}
@media(max-width:767px){.section-head{flex-direction:column;align-items:flex-start;margin-bottom:32px}}

/* ---------- value ---------- */
.value-list{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1)}
.value-item{display:grid;grid-template-columns:96px 1fr;gap:24px;padding:32px 32px;border-bottom:1px solid var(--line)}
.value-item:last-child{border-bottom:0}
.value-num{
  font-family:"Inter",ui-sans-serif,sans-serif;font-size:32px;font-weight:700;line-height:1;
  color:transparent;-webkit-text-stroke:1px var(--brand-100);
}
.value-item:hover .value-num{-webkit-text-stroke:1px var(--accent-500)}
.value-body h3{margin-bottom:8px}
.value-body p{font-size:15px;color:var(--muted);margin-bottom:14px}
.check-list{list-style:none;padding:0;margin:0;display:grid;gap:8px}
.check-list li{display:flex;gap:10px;font-size:15px;color:var(--text);line-height:1.7}
.check-list li svg{flex:0 0 18px;margin-top:6px;stroke:var(--accent-500)}
@media(max-width:767px){
  .value-item{grid-template-columns:1fr;gap:12px;padding:24px 20px}
}

/* ---------- carousel ---------- */
.shots{background:var(--surface)}
.shot-wrap{position:relative;padding:0 60px}
.shot-frame{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);background:var(--paper)}
.shot-frame img{width:100%;aspect-ratio:16/10;object-fit:cover}
.shot-caption{font-size:14px;color:var(--muted);text-align:center;margin-top:16px}
.carousel-control-prev,.carousel-control-next{
  width:44px;height:44px;top:50%;transform:translateY(-50%);border-radius:50%;
  background:var(--surface);border:1px solid var(--line);color:var(--brand-700);
  display:flex;align-items:center;justify-content:center;opacity:1;transition:all .2s var(--ease);
}
.carousel-control-prev{left:0}
.carousel-control-next{right:0}
.carousel-control-prev:hover,.carousel-control-next:hover{background:var(--accent-500);border-color:var(--accent-500);color:#fff}
.carousel-control-prev svg,.carousel-control-next svg{stroke:currentColor}
.carousel-indicators{position:static;margin:24px 0 0;display:flex;justify-content:center;gap:8px}
.carousel-indicators [data-bs-target]{
  width:28px;height:4px;border-radius:2px;background:var(--line);border:0;opacity:1;margin:0;
  transition:background .2s var(--ease);
}
.carousel-indicators .active{background:var(--accent-500)}
@media(max-width:767px){
  .shot-wrap{padding:0}
  .carousel-control-prev,.carousel-control-next{display:none}
}

/* ---------- specs ---------- */
.spec-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.spec-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--sh-1);
}
.spec-card-title{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:600;color:var(--ink-900);margin-bottom:20px}
.spec-card-title::before{content:"";width:3px;height:18px;border-radius:2px;background:var(--accent-500)}
.spec-group{padding:14px 0;border-top:1px solid var(--line)}
.spec-group:first-of-type{border-top:0;padding-top:0}
.spec-group h4{font-size:15px;color:var(--brand-700);margin-bottom:8px}
.spec-row{display:flex;gap:16px;font-size:14.5px;line-height:1.7;padding:4px 0}
.spec-row dt{flex:0 0 120px;color:var(--muted);font-weight:400;margin:0}
.spec-row dd{flex:1;margin:0;color:var(--brand-700);font-weight:600}
.self-check-note{font-size:14.5px;color:var(--muted);margin-bottom:16px}
.accordion-item.spec-acc-item{
  border:1px solid var(--line);border-radius:var(--r-md);margin-bottom:10px;overflow:hidden;background:var(--surface);
}
.spec-acc-item .accordion-button{
  background:var(--surface);font-size:15px;font-weight:600;color:var(--ink-900);
  padding:14px 16px;box-shadow:none;font-family:inherit;
}
.spec-acc-item .accordion-button:not(.collapsed){background:var(--accent-tint);color:var(--brand-700)}
.spec-acc-item .accordion-button::after{
  background-image:none !important;content:"+";font-size:20px;color:var(--brand-700);
  width:24px;height:24px;display:inline-flex;align-items:center;justify-content:center;
  flex:0 0 24px;transform:none;margin-left:auto;line-height:1;
}
.spec-acc-item .accordion-button:not(.collapsed)::after{content:"−";color:var(--accent-500)}
.spec-acc-item .accordion-body{font-size:14.5px;color:var(--muted);padding:14px 16px}
.status-badge{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:600;padding:2px 10px;border-radius:var(--r-pill)}
.status-ok{background:rgba(46,125,91,.12);color:var(--success)}
.status-warn{background:rgba(201,118,31,.14);color:var(--warn)}
@media(max-width:991px){.spec-grid{grid-template-columns:1fr}}

/* ---------- reviews ---------- */
.reviews{background:var(--surface)}
.review-wall{column-count:3;column-gap:24px}
.review-card{
  break-inside:avoid;background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;margin-bottom:24px;transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.review-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.quote-mark{
  width:34px;height:34px;border-radius:10px;background:var(--accent-tint);color:var(--accent-500);
  display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:700;line-height:1;
  margin-bottom:14px;font-family:Georgia,serif;
}
.review-card p{font-size:15px;line-height:1.8;color:var(--text);margin-bottom:18px}
.review-user{display:flex;align-items:center;gap:12px}
.avatar{
  width:40px;height:40px;border-radius:50%;overflow:hidden;flex:0 0 40px;border:1px solid var(--line);
}
.avatar img{width:100%;height:100%;object-fit:cover}
.review-name{font-size:14.5px;font-weight:600;color:var(--ink-900);line-height:1.4}
.review-role{font-size:12.5px;color:var(--muted)}
.stars{margin-left:auto;color:var(--accent-500);font-size:13px;letter-spacing:2px;white-space:nowrap}
@media(max-width:1199px){.review-wall{column-count:2}}
@media(max-width:767px){.review-wall{column-count:1}}

/* ---------- download cta ---------- */
.download-panel{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  background:linear-gradient(160deg,var(--brand-700),var(--ink-900));
  padding:56px;color:#fff;
}
.download-panel h2{color:#fff}
.download-panel::before,.download-panel::after{
  content:"";position:absolute;border-radius:50%;background:rgba(240,129,59,.16);pointer-events:none;
}
.download-panel::before{width:280px;height:280px;top:-120px;right:-60px}
.download-panel::after{width:200px;height:200px;bottom:-110px;left:12%}
.download-grid{position:relative;display:grid;grid-template-columns:1fr 160px;gap:40px;align-items:center}
.download-panel .desc{font-size:16px;color:rgba(255,255,255,.78);margin:14px 0 26px;max-width:560px}
.dl-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:22px}
.btn-light-outline{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 28px;
  border:1px solid rgba(255,255,255,.7);border-radius:var(--r-sm);background:transparent;color:#fff;
  font-size:16px;font-weight:600;font-family:inherit;transition:all .2s var(--ease);cursor:pointer;
}
.btn-light-outline:hover{background:rgba(255,255,255,.12);color:#fff}
.dl-meta{display:flex;flex-wrap:wrap;gap:20px;font-size:13px;color:rgba(255,255,255,.66)}
.qr-box{
  background:#fff;border-radius:var(--r-md);padding:12px;text-align:center;
}
.qr-box img{width:100%;border-radius:8px;aspect-ratio:1/1;object-fit:cover}
.qr-box span{display:block;font-size:12px;color:var(--muted);margin-top:8px;line-height:1.5}
@media(max-width:991px){
  .download-panel{padding:36px 24px}
  .download-grid{grid-template-columns:1fr;gap:28px}
  .qr-box{max-width:180px}
}
@media(max-width:575px){
  .dl-actions .btn-main,.dl-actions .btn-light-outline{width:100%}
}

/* ---------- news ---------- */
.news-card{
  display:flex;flex-direction:column;height:100%;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.news-cover{display:block;overflow:hidden;background:var(--paper)}
.news-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s var(--ease)}
.news-card:hover .news-cover img{transform:scale(1.02)}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;gap:10px}
.news-title{
  font-size:17px;font-weight:600;line-height:1.55;color:var(--ink-900);margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card:hover .news-title{color:var(--brand-700)}
.news-excerpt{
  font-size:14px;line-height:1.7;color:var(--muted);margin:0;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);
}
.news-foot .read{color:var(--brand-700);font-weight:600;display:inline-flex;align-items:center;gap:4px}
.empty-state{
  text-align:center;padding:56px 24px;background:var(--surface);border:1px dashed var(--line);
  border-radius:var(--r-lg);
}
.empty-art{
  width:96px;height:96px;margin:0 auto 18px;border-radius:var(--r-md);
  background:var(--brand-100);display:flex;align-items:center;justify-content:center;
}
.empty-art svg{stroke:var(--brand-600)}
.empty-state p{font-size:15px;color:var(--muted);margin-bottom:18px}
.load-more{display:flex;justify-content:center;margin-top:40px}

/* ---------- faq ---------- */
.faq-accordion .accordion-item{
  position:relative;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
  margin-bottom:12px;background:var(--surface);
}
.faq-accordion .accordion-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--accent-500);
  opacity:0;transition:opacity .2s var(--ease);z-index:2;
}
.faq-accordion .accordion-item:has(.accordion-button:not(.collapsed))::before{opacity:1}
.faq-accordion .accordion-button{
  background:var(--surface);color:var(--ink-900);font-size:16px;font-weight:600;font-family:inherit;
  padding:18px 24px;box-shadow:none;line-height:1.6;
}
.faq-accordion .accordion-button:not(.collapsed){background:var(--surface);color:var(--brand-700)}
.faq-accordion .accordion-button::after{
  background-image:none !important;content:"+";font-size:22px;font-weight:400;line-height:1;
  width:26px;height:26px;display:inline-flex;align-items:center;justify-content:center;
  flex:0 0 26px;margin-left:auto;transform:none;color:var(--brand-700);transition:color .2s var(--ease);
}
.faq-accordion .accordion-button:not(.collapsed)::after{content:"−";color:var(--accent-500)}
.faq-accordion .accordion-body{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--muted)}
.faq-accordion .accordion-body p{margin-bottom:1.1em}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.72);padding:64px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.12)}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-text{color:#fff}
.footer-brand .brand-mark{background:var(--brand-600)}
.footer-about{font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);max-width:300px;margin-bottom:16px}
.footer-col-title{
  font-size:13px;letter-spacing:.08em;color:rgba(255,255,255,.55);margin-bottom:16px;
  font-weight:600;background:none;border:0;padding:0;text-align:left;width:100%;font-family:inherit;
}
.footer-links{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72);text-decoration:none}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  padding-top:24px;font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.5);font-size:13px}
.footer-bottom a:hover{color:#fff}
@media(max-width:991px){
  .footer-grid{grid-template-columns:1fr;gap:0;padding-bottom:16px}
  .footer-col{padding:14px 0;border-bottom:1px solid rgba(255,255,255,.1)}
  .footer-col-title{margin-bottom:0;padding:6px 0;position:relative;cursor:pointer}
  .footer-col-title::after{content:"＋";position:absolute;right:0;top:4px;color:rgba(255,255,255,.5)}
  .footer-col-title[aria-expanded="true"]::after{content:"−"}
  .footer-links{padding-top:12px}
  .footer-about{max-width:100%}
}

/* roulang page: category1 */
:root{
  --brand-700:#12544F;
  --brand-600:#176B63;
  --brand-100:#E3F0ED;
  --accent-500:#F0813B;
  --accent-600:#D96A24;
  --accent-tint:#FFF1E4;
  --ink-900:#0B2B29;
  --paper:#F6F4EF;
  --surface:#FFFFFF;
  --line:#E5E0D6;
  --text:#23282A;
  --muted:#6C7674;
  --success:#2E7D5B;
  --warn:#C9761F;
  --danger:#C0433A;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:18px;
  --r-xl:24px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,43,41,.04);
  --sh-2:0 10px 24px -12px rgba(11,43,41,.18);
  --sh-3:0 24px 48px -24px rgba(11,43,41,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand-700);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--brand-600)}
h1,h2,h3,h4{color:var(--ink-900);margin:0;font-weight:700;letter-spacing:-.2px}
p{margin:0 0 1.15em}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:28px;
  padding-right:28px;
}
@media (min-width:1400px){
  .container{max-width:1280px}
}

/* ---------- 通用按钮 ---------- */
.btn-primary,
.btn-ghost,
.btn-text{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 22px;
  border-radius:var(--r-sm);
  font-size:15.5px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:background .22s var(--ease),color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.btn-primary{
  background:var(--accent-500);
  color:#fff;
  box-shadow:var(--sh-1);
}
.btn-primary:hover{
  background:var(--accent-600);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:var(--sh-2);
}
.btn-primary:active{transform:translateY(0);background:var(--accent-600)}
.btn-ghost{
  background:transparent;
  color:var(--brand-700);
  border-color:var(--brand-700);
}
.btn-ghost:hover{
  background:var(--brand-100);
  color:var(--brand-700);
  transform:translateY(-1px);
}
.btn-ghost-light{
  background:transparent;
  color:#fff;
  border-color:rgba(255,255,255,.65);
}
.btn-ghost-light:hover{
  background:rgba(255,255,255,.12);
  color:#fff;
  border-color:#fff;
}
.btn-text{
  height:auto;
  padding:0;
  background:transparent;
  color:var(--brand-700);
  border:0;
}
.btn-text .arrow{transition:transform .22s var(--ease)}
.btn-text:hover{color:var(--brand-600)}
.btn-text:hover .arrow{transform:translateX(3px)}
.btn-primary:disabled,.btn-ghost:disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- 顶部命令栏 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  height:68px;
  display:flex;
  align-items:center;
  background:rgba(246,244,239,.88);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.site-header.is-scrolled{
  box-shadow:var(--sh-1);
  border-bottom-color:#D8D2C5;
}
.header-inner{
  display:flex;
  align-items:center;
  gap:28px;
  width:100%;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:none;
  white-space:nowrap;
}
.brand-mark{
  width:28px;
  height:28px;
  border-radius:9px;
  background:var(--brand-700);
  position:relative;
  flex:none;
}
.brand-mark::after{
  content:"";
  position:absolute;
  right:4px;
  bottom:4px;
  width:8px;
  height:8px;
  border-radius:50%;
  background:var(--accent-500);
}
.brand-text{
  font-size:17px;
  font-weight:700;
  color:var(--brand-700);
  letter-spacing:-.2px;
}
.nav-menu{
  display:flex;
  align-items:center;
  gap:28px;
}
.nav-menu > li > a{
  position:relative;
  display:inline-block;
  padding:6px 0;
  font-size:15px;
  font-weight:500;
  color:var(--ink-900);
  white-space:nowrap;
}
.nav-menu > li > a::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:-6px;
  height:2px;
  border-radius:2px;
  background:var(--accent-500);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .22s var(--ease);
}
.nav-menu > li > a:hover{color:var(--brand-700)}
.nav-menu > li > a:hover::after{transform:scaleX(1)}
.nav-menu > li > a.is-active{color:var(--brand-700);font-weight:600}
.nav-menu > li > a.is-active::after{transform:scaleX(1)}

.header-actions{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:12px;
}
.command-search{
  display:flex;
  align-items:center;
  gap:8px;
  width:240px;
  height:38px;
  padding:0 12px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.command-search:focus-within{
  border-color:var(--brand-600);
  box-shadow:0 0 0 3px rgba(23,107,99,.12);
}
.command-search i{color:var(--muted);font-size:13px}
.command-search input{
  flex:1;
  min-width:0;
  border:0;
  outline:0;
  background:transparent;
  font-size:14px;
  color:var(--text);
}
.command-search input::placeholder{color:#9AA3A0}
.command-search kbd{
  font-family:"Inter",ui-sans-serif,sans-serif;
  font-size:11px;
  color:var(--muted);
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:6px;
  padding:2px 6px;
  line-height:1.2;
}
.icon-btn{
  width:36px;
  height:36px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:var(--r-sm);
  border:1px solid var(--line);
  background:var(--surface);
  color:var(--brand-700);
  font-size:15px;
  transition:border-color .2s var(--ease),background .2s var(--ease),transform .2s var(--ease);
}
.icon-btn:hover{border-color:var(--brand-600);background:var(--brand-100);transform:translateY(-1px)}
.header-cta{height:40px;padding:0 22px;font-size:15px}
.hamburger{
  width:40px;
  height:40px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:var(--r-sm);
  border:1px solid var(--line);
  background:var(--surface);
  color:var(--brand-700);
  font-size:16px;
}

/* 抽屉 */
.nav-drawer{width:320px;background:var(--paper)}
.nav-drawer .offcanvas-header{
  padding:18px 20px;
  border-bottom:1px solid var(--line);
}
.nav-drawer .offcanvas-body{padding:20px}
.drawer-menu li + li{border-top:1px solid var(--line)}
.drawer-menu a{
  display:block;
  padding:14px 2px;
  font-size:15.5px;
  font-weight:500;
  color:var(--ink-900);
}
.drawer-menu a.is-active{color:var(--brand-700);font-weight:700}
.drawer-cta{width:100%;margin-top:18px}

/* ---------- 分类 Hero ---------- */
.cat-hero{
  position:relative;
  overflow:hidden;
  background:var(--brand-100);
  padding:34px 0 64px;
}
.cat-hero::before{
  content:"";
  position:absolute;
  top:-160px;
  right:-120px;
  width:520px;
  height:520px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(240,129,59,.16),rgba(240,129,59,0) 68%);
  pointer-events:none;
}
.cat-hero-grid{
  position:relative;
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:48px;
  align-items:center;
}
.breadcrumb-line{
  font-size:13px;
  color:var(--muted);
  margin-bottom:18px;
}
.breadcrumb-line a{color:var(--brand-600)}
.breadcrumb-line span.sep{margin:0 8px;color:#A9B1AE}
.breadcrumb-line span.current{color:var(--muted)}
.cat-hero h1{
  font-size:clamp(30px,4.6vw,46px);
  line-height:1.25;
  font-weight:700;
  margin-bottom:16px;
}
.cat-hero .lede{
  font-size:17px;
  line-height:1.85;
  color:#3A4A48;
  max-width:620px;
  margin-bottom:26px;
}
.hero-btn-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.hero-points{
  display:flex;
  flex-wrap:wrap;
  gap:8px 18px;
  margin-top:22px;
  font-size:13.5px;
  color:var(--muted);
}
.hero-points span{display:inline-flex;align-items:center;gap:7px}
.hero-points i{color:var(--accent-500);font-size:13px}
.hero-visual{
  border-radius:var(--r-xl);
  overflow:hidden;
  border:1px solid #CFE2DE;
  box-shadow:var(--sh-3);
  background:var(--surface);
  aspect-ratio:4/3;
}
.hero-visual img{width:100%;height:100%;object-fit:cover}

/* ---------- 通用区块 ---------- */
.section{padding:88px 0}
.section-tight{padding:64px 0}
.section-head{
  max-width:760px;
  margin-bottom:40px;
}
.section-head .eyebrow{
  display:inline-block;
  font-size:12px;
  letter-spacing:.12em;
  color:var(--muted);
  text-transform:uppercase;
  margin-bottom:12px;
}
.section-head h2{
  position:relative;
  font-size:clamp(24px,3vw,34px);
  line-height:1.35;
  padding-left:16px;
  margin-bottom:14px;
}
.section-head h2::before{
  content:"";
  position:absolute;
  left:0;
  top:.28em;
  width:3px;
  height:24px;
  border-radius:2px;
  background:var(--accent-500);
}
.section-head p{
  color:var(--muted);
  font-size:16px;
  margin:0;
}

/* ---------- 要点卡 ---------- */
.point-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
}
.point-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:24px;
  box-shadow:var(--sh-1);
  transition:box-shadow .22s var(--ease),transform .22s var(--ease);
}
.point-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.point-card .num{
  font-family:"Inter",ui-sans-serif,sans-serif;
  font-size:13px;
  letter-spacing:.1em;
  color:var(--accent-500);
  font-weight:700;
}
.point-card h3{
  font-size:17px;
  line-height:1.6;
  font-weight:600;
  margin:10px 0 8px;
}
.point-card p{
  font-size:14.5px;
  line-height:1.8;
  color:var(--muted);
  margin:0;
}

/* ---------- 图文交替 ---------- */
.zigzag{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:center;
}
.zigzag + .zigzag{margin-top:72px}
.zigzag.reverse .zigzag-media{order:2}
.zigzag-media{
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
  background:var(--surface);
  aspect-ratio:16/10;
}
.zigzag-media img{width:100%;height:100%;object-fit:cover}
.zigzag-body h3{
  font-size:22px;
  line-height:1.5;
  font-weight:600;
  margin-bottom:14px;
}
.zigzag-body p{font-size:16px;line-height:1.85;color:#33393B}
.check-list{margin-top:18px}
.check-list li{
  display:flex;
  gap:10px;
  align-items:flex-start;
  padding:9px 0;
  font-size:15px;
  line-height:1.75;
  border-top:1px solid var(--line);
}
.check-list li:first-child{border-top:0;padding-top:0}
.check-list i{color:var(--accent-500);font-size:14px;margin-top:6px}

/* ---------- 时间线 ---------- */
.timeline{
  position:relative;
  max-width:820px;
  padding-left:8px;
}
.timeline-item{
  position:relative;
  padding:0 0 34px 66px;
}
.timeline-item::before{
  content:"";
  position:absolute;
  left:21px;
  top:44px;
  bottom:0;
  width:1px;
  background:var(--line);
}
.timeline-item:last-child{padding-bottom:0}
.timeline-item:last-child::before{display:none}
.timeline-dot{
  position:absolute;
  left:0;
  top:0;
  width:44px;
  height:44px;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  background:var(--surface);
  border:1px solid var(--line);
  font-family:"Inter",ui-sans-serif,sans-serif;
  font-size:14px;
  font-weight:700;
  color:var(--brand-700);
  box-shadow:var(--sh-1);
}
.timeline-item.is-final .timeline-dot{
  background:var(--accent-500);
  border-color:var(--accent-500);
  color:#fff;
  box-shadow:0 10px 24px -12px rgba(240,129,59,.6);
}
.timeline-item h3{
  font-size:18px;
  font-weight:600;
  line-height:1.6;
  margin-bottom:8px;
}
.timeline-item p{
  font-size:15.5px;
  line-height:1.85;
  color:var(--muted);
  margin:0;
}
.timeline-item .tag{
  display:inline-block;
  margin-left:10px;
  font-size:12px;
  font-weight:600;
  color:var(--accent-600);
  background:var(--accent-tint);
  border-radius:var(--r-pill);
  padding:2px 10px;
  vertical-align:2px;
}

/* ---------- FAQ ---------- */
.faq-list{max-width:880px}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  margin-bottom:12px;
  overflow:hidden;
  transition:box-shadow .22s var(--ease);
}
.faq-item:hover{box-shadow:var(--sh-1)}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 24px;
  background:transparent;
  border:0;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:var(--ink-900);
  cursor:pointer;
}
.faq-icon{
  position:relative;
  width:16px;
  height:16px;
  flex:none;
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--brand-700);
  border-radius:2px;
  transition:transform .22s var(--ease),background .22s var(--ease);
}
.faq-icon::before{left:0;right:0;top:7px;height:2px}
.faq-icon::after{top:0;bottom:0;left:7px;width:2px}
.faq-q[aria-expanded="true"] .faq-icon::after{transform:scaleY(0)}
.faq-q[aria-expanded="true"]{color:var(--brand-700)}
.faq-a-inner{
  padding:0 24px 20px 21px;
  border-left:3px solid var(--accent-500);
  margin-left:0;
  font-size:15px;
  line-height:1.85;
  color:var(--muted);
}
.faq-a-inner p:last-child{margin-bottom:0}

/* ---------- CTA ---------- */
.cta-block{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-xl);
  background:linear-gradient(135deg,var(--brand-700) 0%,var(--ink-900) 100%);
  padding:56px;
  color:#fff;
  display:grid;
  grid-template-columns:1.4fr 1fr;
  gap:48px;
  align-items:center;
}
.cta-block::before,
.cta-block::after{
  content:"";
  position:absolute;
  border-radius:50%;
  background:rgba(240,129,59,.18);
  pointer-events:none;
}
.cta-block::before{width:220px;height:220px;top:-90px;right:120px}
.cta-block::after{width:140px;height:140px;bottom:-70px;right:-30px;background:rgba(240,129,59,.12)}
.cta-block h2{
  color:#fff;
  font-size:clamp(22px,2.6vw,30px);
  line-height:1.4;
  margin-bottom:12px;
}
.cta-block p{
  color:rgba(255,255,255,.78);
  font-size:16px;
  line-height:1.85;
  margin-bottom:24px;
}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:20px}
.cta-meta{
  display:flex;
  flex-wrap:wrap;
  gap:8px 22px;
  font-size:13px;
  color:rgba(255,255,255,.6);
}
.cta-aside{
  position:relative;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.16);
  border-radius:var(--r-lg);
  padding:24px;
}
.cta-aside h3{
  color:#fff;
  font-size:16px;
  font-weight:600;
  margin-bottom:14px;
}
.cta-aside ul li{
  display:flex;
  gap:10px;
  align-items:flex-start;
  font-size:14.5px;
  line-height:1.75;
  color:rgba(255,255,255,.8);
  padding:8px 0;
}
.cta-aside ul li + li{border-top:1px solid rgba(255,255,255,.12)}
.cta-aside i{color:var(--accent-500);font-size:13px;margin-top:6px}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink-900);
  color:rgba(255,255,255,.72);
  padding:64px 0 28px;
  margin-top:24px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:40px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:16px;
}
.footer-brand .brand-mark{background:var(--brand-600)}
.footer-brand .brand-text{color:#fff}
.footer-about{
  font-size:14px;
  line-height:1.8;
  color:rgba(255,255,255,.62);
  max-width:360px;
  margin:0;
}
.footer-col-title{
  display:block;
  width:100%;
  text-align:left;
  background:transparent;
  border:0;
  padding:0;
  font-size:13px;
  letter-spacing:.08em;
  font-weight:600;
  color:rgba(255,255,255,.55);
  margin-bottom:16px;
}
.footer-links li{margin-bottom:10px}
.footer-links a{
  font-size:14px;
  color:rgba(255,255,255,.72);
}
.footer-links a:hover{
  color:#fff;
  text-decoration:underline;
  text-underline-offset:4px;
}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:12px 24px;
  justify-content:space-between;
  padding-top:24px;
  font-size:13px;
  color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.7)}
.footer-bottom a:hover{color:#fff}
@media (max-width:991px){
  .footer-col-title{margin-bottom:0;padding:14px 0}
  .footer-col{border-bottom:1px solid rgba(255,255,255,.12);padding-bottom:6px}
  .footer-col:last-child{border-bottom:0}
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .command-search{display:none}
  .point-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:991px){
  .site-header{height:60px}
  .container{padding-left:20px;padding-right:20px}
  .section{padding:72px 0}
  .cat-hero{padding:26px 0 48px}
  .cat-hero-grid{grid-template-columns:1fr;gap:32px}
  .cat-hero .hero-visual{order:2;aspect-ratio:16/10}
  .zigzag{grid-template-columns:1fr;gap:28px}
  .zigzag.reverse .zigzag-media{order:0}
  .cta-block{grid-template-columns:1fr;padding:36px 26px;gap:28px}
  .footer-grid{grid-template-columns:1fr;gap:8px}
}
@media (max-width:767px){
  body{font-size:16px}
  .section{padding:56px 0}
  .point-grid{grid-template-columns:1fr}
  .hero-btn-row .btn-primary,
  .hero-btn-row .btn-ghost{width:100%}
  .cta-actions .btn-primary,
  .cta-actions .btn-ghost-light{width:100%}
  .faq-q{padding:16px 18px;font-size:15.5px}
  .faq-a-inner{padding:0 18px 18px 15px}
  .timeline-item{padding-left:58px}
  .timeline-dot{width:40px;height:40px;font-size:13px}
  .timeline-item::before{left:19px}
}
@media (max-width:520px){
  .brand-text{font-size:16px}
  .section-head h2{padding-left:14px}
  .cat-hero h1{letter-spacing:0}
}

/* roulang page: article */
:root{
  --brand-700:#12544F;
  --brand-600:#176B63;
  --brand-100:#E3F0ED;
  --accent-500:#F0813B;
  --accent-600:#D96A24;
  --accent-tint:#FFF1E4;
  --ink-900:#0B2B29;
  --paper:#F6F4EF;
  --surface:#FFFFFF;
  --line:#E5E0D6;
  --text:#23282A;
  --muted:#6C7674;
  --success:#2E7D5B;
  --warn:#C9761F;
  --danger:#C0433A;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:18px;
  --r-xl:24px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,43,41,.04);
  --sh-2:0 10px 24px -12px rgba(11,43,41,.18);
  --sh-3:0 24px 48px -24px rgba(11,43,41,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"Inter",ui-sans-serif,system-ui,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand-600);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--accent-600);}
button{font-family:inherit;}
h1,h2,h3,h4,h5{margin:0;color:var(--ink-900);letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;border-radius:4px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
}
@media (min-width:768px){.container{padding:0 28px;}}
@media (min-width:1400px){.container{max-width:1280px;}}

/* ---------- 顶部命令栏 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  height:68px;
  display:flex;
  align-items:center;
  background:rgba(246,244,239,.88);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.site-header.is-scrolled{
  box-shadow:var(--sh-1);
  border-bottom-color:#D8D2C5;
}
.header-inner{
  display:flex;
  align-items:center;
  gap:28px;
  width:100%;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--brand-700);
  font-size:17px;
  font-weight:700;
  letter-spacing:-.2px;
  white-space:nowrap;
}
.brand:hover{color:var(--brand-700);}
.brand-mark{
  width:28px;height:28px;
  border-radius:9px;
  background:var(--brand-700);
  position:relative;
  flex:0 0 28px;
}
.brand-mark::after{
  content:"";
  position:absolute;
  right:4px;bottom:4px;
  width:9px;height:9px;
  border-radius:50%;
  background:var(--accent-500);
}
.nav-menu{
  display:flex;
  align-items:center;
  gap:28px;
}
.nav-menu > li > a{
  position:relative;
  display:inline-block;
  padding:6px 0;
  font-size:15px;
  font-weight:500;
  color:var(--ink-900);
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.nav-menu > li > a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-8px;
  height:2px;
  background:var(--accent-500);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .22s var(--ease);
}
.nav-menu > li > a:hover{transform:translateY(-1px);}
.nav-menu > li > a:hover::after{transform:scaleX(1);}
.nav-menu > li > a.is-active{color:var(--brand-700);font-weight:600;}
.nav-menu > li > a.is-active::after{transform:scaleX(1);}

.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  margin-left:auto;
}
.command-search{
  position:relative;
  display:flex;
  align-items:center;
  width:240px;
  height:38px;
  padding:0 10px 0 34px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.command-search:focus-within{
  border-color:var(--brand-600);
  box-shadow:0 0 0 4px rgba(23,107,99,.10);
}
.command-search i{
  position:absolute;
  left:13px;
  font-size:13px;
  color:var(--muted);
}
.command-search input{
  flex:1;
  min-width:0;
  height:100%;
  border:0;
  outline:0;
  background:transparent;
  font-size:14px;
  color:var(--text);
}
.command-search input::placeholder{color:var(--muted);}
.command-search kbd{
  font-family:var(--font-num);
  font-size:11px;
  color:var(--muted);
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:6px;
  padding:1px 6px;
}
.icon-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:36px;height:36px;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  background:var(--surface);
  color:var(--brand-700);
  font-size:14px;
  transition:border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease);
}
.icon-btn:hover{
  border-color:var(--brand-600);
  background:var(--brand-100);
  color:var(--brand-700);
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border:1px solid transparent;
  border-radius:var(--r-sm);
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:transform .22s var(--ease),background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.btn-primary-cta{
  background:var(--accent-500);
  color:#fff;
}
.btn-primary-cta:hover{
  background:var(--accent-600);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:var(--sh-2);
}
.btn-outline-cta{
  background:transparent;
  border-color:var(--brand-700);
  color:var(--brand-700);
}
.btn-outline-cta:hover{
  background:var(--brand-100);
  color:var(--brand-700);
}
.btn-ghost{
  background:transparent;
  border-color:var(--line);
  color:var(--brand-700);
}
.btn-ghost:hover{background:var(--brand-100);}
.btn-sm-cta{height:40px;padding:0 22px;font-size:14px;}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:600;
  color:var(--brand-700);
}
.link-arrow i{transition:transform .22s var(--ease);}
.link-arrow:hover i{transform:translateX(3px);}
.menu-toggle{
  margin-left:auto;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:40px;height:40px;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  background:var(--surface);
  color:var(--brand-700);
  font-size:16px;
}
.offcanvas.mobile-drawer{
  width:320px;
  background:var(--paper);
  border-left:1px solid var(--line);
}
.mobile-drawer .offcanvas-header{
  border-bottom:1px solid var(--line);
  padding:18px 20px;
}
.mobile-search{
  display:flex;
  align-items:center;
  gap:10px;
  height:44px;
  padding:0 14px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  margin:18px 0 10px;
}
.mobile-search input{
  flex:1;min-width:0;border:0;outline:0;background:transparent;font-size:15px;
}
.mobile-nav{display:flex;flex-direction:column;}
.mobile-nav a{
  padding:14px 0;
  font-size:16px;
  font-weight:500;
  color:var(--ink-900);
  border-bottom:1px solid var(--line);
}
.mobile-nav a.is-active{color:var(--brand-700);font-weight:600;}
.mobile-cta{margin-top:22px;display:flex;flex-direction:column;gap:12px;}
.mobile-cta .btn{width:100%;}

/* ---------- 阅读进度条 ---------- */
.reading-progress{
  position:fixed;
  top:0;left:0;
  height:2px;
  width:0;
  background:var(--accent-500);
  z-index:1040;
  transition:width .1s linear;
}

/* ---------- 文章版式 ---------- */
.article-wrap{
  padding:32px 0 88px;
}
.breadcrumb-bar{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:var(--muted);
  margin-bottom:22px;
}
.breadcrumb-bar a{color:var(--muted);}
.breadcrumb-bar a:hover{color:var(--brand-700);}
.breadcrumb-bar .sep{color:#BFB9AC;}
.breadcrumb-bar .current{
  color:var(--muted);
  max-width:340px;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.article-layout{
  display:grid;
  grid-template-columns:1fr;
  gap:48px;
}
@media (min-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr) 220px;}
}
.article-main{min-width:0;}

.article-head{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-xl);
  box-shadow:var(--sh-1);
  padding:28px 24px;
  margin-bottom:28px;
}
@media (min-width:768px){
  .article-head{padding:36px 36px 30px;}
}
.badge-pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  border-radius:var(--r-pill);
  background:var(--brand-100);
  color:var(--brand-700);
  font-size:12.5px;
  font-weight:600;
  line-height:1.7;
}
.article-title{
  font-size:clamp(26px,3.4vw,34px);
  line-height:1.3;
  font-weight:700;
  margin:16px 0 14px;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--muted);
}
.article-meta .dot{color:#C7C1B4;}
.article-divider{
  height:1px;
  background:var(--line);
  border:0;
  margin:22px 0 0;
}

.article-body{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-xl);
  box-shadow:var(--sh-1);
  padding:28px 24px 32px;
  font-size:17px;
  line-height:1.9;
  max-width:840px;
}
@media (min-width:768px){
  .article-body{padding:40px;font-size:17px;}
}
.article-body > * + *{margin-top:1.15em;}
.article-body h2{
  position:relative;
  font-size:24px;
  font-weight:700;
  line-height:1.45;
  padding-left:16px;
  margin-top:2.2em;
  margin-bottom:.8em;
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;top:.28em;
  width:4px;height:20px;
  border-radius:2px;
  background:var(--accent-500);
}
.article-body h3{
  font-size:19px;
  font-weight:600;
  line-height:1.6;
  margin-top:1.7em;
  margin-bottom:.6em;
  color:var(--brand-700);
}
.article-body h4{
  font-size:17px;
  font-weight:600;
  margin-top:1.4em;
  margin-bottom:.5em;
}
.article-body p{margin:0;color:var(--text);}
.article-body a{
  color:var(--brand-600);
  border-bottom:1px solid rgba(23,107,99,.35);
}
.article-body strong{color:var(--ink-900);font-weight:700;}
.article-body blockquote{
  background:var(--brand-100);
  border-left:4px solid var(--brand-600);
  border-radius:var(--r-md);
  padding:16px 20px;
  color:var(--ink-900);
  font-size:16px;
  line-height:1.85;
}
.article-body blockquote p{margin:0;}
.article-body ul,
.article-body ol{
  padding-left:1.3em;
  margin:0;
}
.article-body ul{list-style:none;padding-left:0;}
.article-body ul li{
  position:relative;
  padding-left:20px;
  margin:.6em 0;
}
.article-body ul li::before{
  content:"";
  position:absolute;
  left:2px;top:.72em;
  width:7px;height:7px;
  border-radius:50%;
  background:var(--accent-500);
}
.article-body ol{
  list-style:decimal;
  padding-left:1.4em;
}
.article-body ol li{
  margin:.6em 0;
  padding-left:4px;
}
.article-body ol li::marker{
  color:var(--brand-700);
  font-weight:700;
  font-family:var(--font-num);
}
.article-body code{
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace;
  font-size:14px;
  background:#F1EEE7;
  border-radius:var(--r-sm);
  padding:2px 6px;
  color:var(--brand-700);
}
.article-body pre{
  background:#F1EEE7;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:16px 18px;
  overflow-x:auto;
  font-size:14px;
  line-height:1.7;
}
.article-body pre code{background:transparent;padding:0;}
.article-body img{
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  width:100%;
}
.article-body figure{margin:1.4em 0;}
.article-body figcaption{
  font-size:13px;
  color:var(--muted);
  text-align:center;
  margin-top:10px;
}
.article-body .table-scroll{
  overflow-x:auto;
  border:1px solid var(--line);
  border-radius:var(--r-md);
}
.article-body table{
  width:100%;
  border-collapse:collapse;
  font-size:15px;
  min-width:520px;
}
.article-body table th{
  background:var(--ink-900);
  color:#fff;
  font-weight:600;
  text-align:left;
  padding:12px 16px;
  white-space:nowrap;
}
.article-body table td{
  padding:12px 16px;
  border-top:1px solid var(--line);
  color:var(--text);
}
.article-body table tbody tr:nth-child(odd){background:var(--brand-100);}
.article-body table tbody tr:nth-child(even){background:var(--surface);}

.empty-state{
  text-align:center;
  padding:48px 20px;
}
.empty-state .empty-illu{
  width:96px;height:96px;
  margin:0 auto 20px;
  border-radius:var(--r-lg);
  background:var(--brand-100);
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--brand-600);
  font-size:34px;
}
.empty-state p{font-size:15px;color:var(--muted);margin-bottom:20px;}

/* ---------- 文末区 ---------- */
.article-foot{max-width:840px;}
.tag-block{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  margin-top:28px;
}
.tag-block .label{
  font-size:13px;
  color:var(--muted);
  letter-spacing:.08em;
}
.tag{
  display:inline-flex;
  align-items:center;
  padding:5px 14px;
  border-radius:var(--r-pill);
  background:var(--surface);
  border:1px solid var(--line);
  font-size:13px;
  color:var(--brand-700);
  transition:background .2s var(--ease),border-color .2s var(--ease);
}
.tag:hover{background:var(--brand-100);border-color:var(--brand-100);color:var(--brand-700);}

.adjacent-nav{
  display:grid;
  grid-template-columns:1fr;
  gap:16px;
  margin-top:36px;
}
@media (min-width:768px){
  .adjacent-nav{grid-template-columns:1fr 1fr;}
}
.adjacent-card{
  display:block;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:18px 20px;
  box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.adjacent-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--sh-2);
  border-color:#D8D2C5;
}
.adjacent-card .dir{
  font-size:12.5px;
  color:var(--muted);
  letter-spacing:.08em;
  display:block;
  margin-bottom:6px;
}
.adjacent-card .title{
  display:block;
  font-size:16px;
  font-weight:600;
  color:var(--ink-900);
  line-height:1.6;
  overflow:hidden;
  text-overflow:ellipsis;
  display:-webkit-box;
  -webkit-line-clamp:1;
  -webkit-box-orient:vertical;
}
.adjacent-card:hover .title{color:var(--brand-700);}

.related-block{margin-top:56px;max-width:840px;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:24px;
}
.section-head h2{
  position:relative;
  font-size:clamp(22px,2.6vw,28px);
  line-height:1.4;
  padding-left:14px;
}
.section-head h2::before{
  content:"";
  position:absolute;
  left:0;top:.3em;
  width:3px;height:18px;
  border-radius:2px;
  background:var(--accent-500);
}
.section-head .eyebrow{
  display:block;
  font-size:12px;
  letter-spacing:.12em;
  color:var(--muted);
  margin-bottom:8px;
}
.related-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:18px;
}
@media (min-width:576px){.related-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:992px){.related-grid{grid-template-columns:repeat(3,1fr);}}
.post-card{
  display:flex;
  flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.post-card .cover{
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--brand-100);
}
.post-card .cover img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .4s var(--ease);
}
.post-card:hover .cover img{transform:scale(1.03);}
.post-card .body{
  padding:18px;
  display:flex;
  flex-direction:column;
  gap:10px;
  flex:1;
}
.post-card .title{
  font-size:17px;
  font-weight:600;
  line-height:1.6;
  color:var(--ink-900);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-card:hover .title{color:var(--brand-700);}
.post-card .excerpt{
  font-size:14px;
  line-height:1.7;
  color:var(--muted);
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-card .foot{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:var(--muted);
  padding-top:12px;
  border-top:1px solid var(--line);
}
.back-cate{
  margin-top:40px;
  max-width:840px;
}

/* ---------- 侧栏目录 ---------- */
.article-aside{
  display:none;
}
@media (min-width:1200px){
  .article-aside{display:block;}
}
.toc-card{
  position:sticky;
  top:96px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  padding:20px;
}
.toc-card h3{
  font-size:13px;
  letter-spacing:.1em;
  color:var(--muted);
  font-weight:600;
  margin-bottom:14px;
}
.toc-card a{
  display:block;
  font-size:14px;
  line-height:1.6;
  color:var(--muted);
  padding:6px 0 6px 12px;
  border-left:2px solid transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.toc-card a:hover{color:var(--brand-700);}
.toc-card a.is-current{
  color:var(--brand-700);
  font-weight:600;
  border-left-color:var(--accent-500);
}
.toc-empty{font-size:13px;color:var(--muted);}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink-900);
  color:rgba(255,255,255,.72);
  padding:64px 0 28px;
  margin-top:24px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:32px;
}
@media (min-width:768px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:28px;}
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:14px;
}
.footer-brand .brand-mark{background:var(--accent-500);}
.footer-brand .brand-mark::after{background:#fff;}
.footer-brand .brand-text{
  color:#fff;
  font-size:17px;
  font-weight:700;
  white-space:nowrap;
}
.footer-about{
  font-size:14px;
  line-height:1.8;
  color:rgba(255,255,255,.6);
  max-width:340px;
}
.footer-col-title{
  font-size:13px;
  font-weight:600;
  letter-spacing:.08em;
  color:rgba(255,255,255,.55);
  margin-bottom:14px;
}
button.footer-col-title{
  display:block;
  width:100%;
  text-align:left;
  background:transparent;
  border:0;
  padding:0;
  cursor:pointer;
}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{
  font-size:14px;
  color:rgba(255,255,255,.72);
}
.footer-links a:hover{
  color:#fff;
  text-decoration:underline;
  text-underline-offset:4px;
}
.footer-bottom{
  margin-top:44px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;
  flex-wrap:wrap;
  gap:10px 20px;
  justify-content:space-between;
  font-size:13px;
  color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.7);}
.footer-bottom a:hover{color:#fff;}

@media (max-width:575.98px){
  .article-body{font-size:16px;}
  .btn{width:100%;}
  .adjacent-nav{gap:12px;}
}

/* roulang page: category2 */
:root{
  --brand-700:#12544F;
  --brand-600:#176B63;
  --brand-100:#E3F0ED;
  --accent-500:#F0813B;
  --accent-600:#D96A24;
  --accent-tint:#FFF1E4;
  --ink-900:#0B2B29;
  --paper:#F6F4EF;
  --surface:#FFFFFF;
  --line:#E5E0D6;
  --text:#23282A;
  --muted:#6C7674;
  --success:#2E7D5B;
  --warn:#C9761F;
  --danger:#C0433A;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:18px;
  --r-xl:24px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,43,41,.04);
  --sh-2:0 10px 24px -12px rgba(11,43,41,.18);
  --sh-3:0 24px 48px -24px rgba(11,43,41,.28);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:"Inter",ui-sans-serif,system-ui,sans-serif;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{margin:0;color:var(--ink-900);font-weight:700;letter-spacing:-.01em;}
h1{font-size:clamp(30px,4.6vw,46px);line-height:1.25;font-weight:700;}
h2{font-size:clamp(24px,3vw,34px);line-height:1.35;font-weight:700;}
h3{font-size:20px;line-height:1.5;font-weight:600;}
h4{font-size:17px;line-height:1.6;font-weight:600;}
p{margin:0 0 1.15em;}
p:last-child{margin-bottom:0;}
a{color:var(--brand-600);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--brand-700);}
img{max-width:100%;display:block;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;border-radius:4px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:992px){ .container{padding-left:28px;padding-right:28px;} }
@media (min-width:1400px){ .container{max-width:1280px;} }

.section{padding:56px 0;}
@media (min-width:768px){ .section{padding:72px 0;} }
@media (min-width:992px){ .section{padding:96px 0;} }

.section-head{margin-bottom:36px;}
.section-head .eyebrow{
  display:block;
  font-size:12px;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--muted);
  margin-bottom:10px;
  font-family:var(--font-num);
}
.section-head h2{
  position:relative;
  padding-left:14px;
}
.section-head h2::before{
  content:"";
  position:absolute;
  left:0;top:.32em;
  width:3px;height:18px;
  background:var(--accent-500);
  border-radius:2px;
}
.section-head .lead{
  margin-top:12px;
  max-width:780px;
  color:var(--muted);
  font-size:16px;
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 24px;
  border-radius:var(--r-sm);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:all .22s var(--ease);
  text-align:center;
  white-space:nowrap;
}
.btn-accent{background:var(--accent-500);color:#fff;box-shadow:var(--sh-1);}
.btn-accent:hover{background:var(--accent-600);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-accent:active{transform:translateY(0);}
.btn-outline{background:transparent;color:var(--brand-700);border-color:var(--brand-700);}
.btn-outline:hover{background:var(--brand-100);color:var(--brand-700);}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.7);}
.btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand-700);font-weight:600;font-size:15px;
  padding:0;
}
.btn-text i{transition:transform .22s var(--ease);font-size:13px;}
.btn-text:hover i{transform:translateX(3px);}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}

/* ---------- Badges / tags ---------- */
.badge-pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;
  border-radius:var(--r-pill);
  background:var(--brand-100);
  color:var(--brand-700);
  font-size:12.5px;
  font-weight:600;
  line-height:1.6;
}
.badge-pill.is-accent{background:var(--accent-tint);color:var(--accent-600);}
.badge-pill.is-mono{font-family:var(--font-num);letter-spacing:.02em;}
.badge-status{font-size:12px;padding:3px 10px;border-radius:var(--r-pill);font-weight:600;}
.badge-status.ok{background:rgba(46,125,91,.12);color:var(--success);}
.badge-status.warn{background:rgba(201,118,31,.14);color:var(--warn);}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(246,244,239,.88);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.site-header.is-scrolled{
  box-shadow:var(--sh-1);
  border-bottom-color:#D8D2C6;
}
.header-inner{
  display:flex;align-items:center;gap:24px;
  height:68px;
}
@media (max-width:991px){ .header-inner{height:60px;} }
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;white-space:nowrap;}
.brand-mark{
  width:28px;height:28px;border-radius:9px;
  background:var(--brand-700);
  position:relative;flex:0 0 auto;
}
.brand-mark::after{
  content:"";position:absolute;right:5px;top:5px;
  width:8px;height:8px;border-radius:50%;background:var(--accent-500);
}
.brand-text{
  font-size:17px;font-weight:700;color:var(--brand-700);
  letter-spacing:-.2px;white-space:nowrap;
}
.nav-menu{display:flex;align-items:center;gap:28px;}
.nav-menu li a{
  position:relative;
  display:inline-block;
  font-size:15px;font-weight:500;
  color:var(--ink-900);
  padding:6px 0;
  transition:color .2s var(--ease);
}
.nav-menu li a::after{
  content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;
  background:var(--accent-500);
  transform:scaleX(0);transform-origin:left;
  transition:transform .22s var(--ease);
}
.nav-menu li a:hover{color:var(--brand-700);}
.nav-menu li a:hover::after{transform:scaleX(1);}
.nav-menu li a.is-active{color:var(--brand-700);font-weight:600;}
.nav-menu li a.is-active::after{transform:scaleX(1);}
.header-tools{display:flex;align-items:center;gap:10px;margin-left:auto;}
.command-search{
  position:relative;display:flex;align-items:center;
  width:240px;height:38px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  padding:0 12px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.command-search:focus-within{border-color:var(--brand-600);box-shadow:0 0 0 4px rgba(23,107,99,.10);}
.command-search i{color:var(--muted);font-size:13px;}
.command-search input{
  flex:1;border:0;background:transparent;outline:none;
  font-size:13.5px;color:var(--text);padding:0 8px;min-width:0;
}
.command-search input::placeholder{color:#9AA3A1;}
.kbd-key{
  font-family:var(--font-num);font-size:11px;color:var(--muted);
  border:1px solid var(--line);border-radius:6px;padding:1px 6px;background:#FBFAF7;
}
.icon-btn{
  width:36px;height:36px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:var(--r-sm);
  background:var(--surface);color:var(--brand-700);
  transition:all .2s var(--ease);
}
.icon-btn:hover{border-color:var(--brand-600);background:var(--brand-100);color:var(--brand-700);}
.header-cta{height:40px;padding:0 22px;border-radius:var(--r-sm);font-size:14.5px;}
.hamburger{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:var(--r-sm);
  background:var(--surface);color:var(--brand-700);
}
.hamburger:hover{background:var(--brand-100);border-color:var(--brand-600);}
.offcanvas{width:320px;}
.offcanvas-body .nav-menu{flex-direction:column;align-items:stretch;gap:0;}
.offcanvas-body .nav-menu li a{
  display:block;padding:14px 4px;font-size:16px;
  border-bottom:1px solid var(--line);
}
.offcanvas-body .nav-menu li a::after{display:none;}
.offcanvas-body .nav-menu li a.is-active{color:var(--accent-600);}

/* ---------- Hero (category) ---------- */
.cat-hero{
  background:linear-gradient(180deg,#EDF5F3 0%,var(--brand-100) 100%);
  border-bottom:1px solid var(--line);
  padding:36px 0 52px;
}
@media (min-width:992px){ .cat-hero{padding:44px 0 72px;} }
.breadcrumb-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);margin-bottom:22px;
}
.breadcrumb-row a{color:var(--muted);}
.breadcrumb-row a:hover{color:var(--brand-700);}
.breadcrumb-row .sep{color:#BFC6C4;}
.breadcrumb-row .current{color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:280px;}
.hero-grid{display:grid;grid-template-columns:1fr;gap:36px;align-items:center;}
@media (min-width:992px){ .hero-grid{grid-template-columns:1.15fr .85fr;gap:48px;} }
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:20px;}
.cat-hero h1{margin-bottom:16px;}
.cat-hero .hero-lead{
  font-size:17px;color:#3B4A48;max-width:600px;margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;}
.hero-figure{
  border-radius:var(--r-xl);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--sh-3);
  background:var(--surface);
}
.hero-figure img{width:100%;aspect-ratio:16/11;object-fit:cover;}
.hero-figure figcaption{
  padding:12px 18px;font-size:13px;color:var(--muted);background:var(--surface);
  border-top:1px solid var(--line);
}

/* ---------- Point cards ---------- */
.point-grid{
  display:grid;gap:20px;
  grid-template-columns:1fr;
}
@media (min-width:576px){ .point-grid{grid-template-columns:repeat(2,1fr);} }
@media (min-width:992px){ .point-grid{grid-template-columns:repeat(4,1fr);} }
.point-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:24px;
  box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.point-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.point-card .idx{
  font-family:var(--font-num);font-size:13px;letter-spacing:.1em;
  color:var(--accent-500);font-weight:600;display:block;margin-bottom:12px;
}
.point-card h3{font-size:17px;margin-bottom:8px;}
.point-card p{font-size:14.5px;color:var(--muted);line-height:1.75;margin:0;}

/* ---------- Article body ---------- */
.article-body{max-width:820px;}
.article-body h2{margin-bottom:16px;}
.article-body h3{margin:28px 0 12px;}
.article-body p{font-size:16.5px;line-height:1.9;}
.article-body ul.check-list{margin:16px 0 24px;}
.article-body ul.check-list li{
  position:relative;padding-left:26px;margin-bottom:10px;
  font-size:15.5px;line-height:1.8;color:#33403E;
}
.article-body ul.check-list li::before{
  content:"\f00c";
  font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;left:0;top:2px;color:var(--accent-500);font-size:13px;
}
.quote-block{
  background:var(--brand-100);
  border-left:4px solid var(--brand-600);
  border-radius:0 var(--r-md) var(--r-md) 0;
  padding:16px 20px;
  margin:24px 0;
  color:#2B3A38;
  font-size:15.5px;
}
.two-col{display:grid;grid-template-columns:1fr;gap:32px;align-items:start;}
@media (min-width:992px){ .two-col{grid-template-columns:1.05fr .95fr;gap:48px;} }
.figure-card{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  background:var(--surface);box-shadow:var(--sh-1);
}
.figure-card img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.figure-card figcaption{padding:12px 18px;font-size:13px;color:var(--muted);border-top:1px solid var(--line);}

/* ---------- Device card grid (2x3) ---------- */
.device-grid{
  display:grid;gap:20px;
  grid-template-columns:1fr;
}
@media (min-width:576px){ .device-grid{grid-template-columns:repeat(2,1fr);} }
@media (min-width:1200px){ .device-grid{grid-template-columns:repeat(3,1fr);} }
.device-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-1);
  display:flex;flex-direction:column;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.device-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.device-card:hover h3{color:var(--brand-700);}
.device-card .thumb{overflow:hidden;background:var(--brand-100);}
.device-card .thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.device-card .body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.device-card h3{font-size:18px;transition:color .2s var(--ease);}
.device-card p{font-size:14.5px;color:var(--muted);line-height:1.75;margin:0;}
.device-card .meta{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:8px;align-items:center;
  font-size:13px;color:var(--muted);
}

/* ---------- Compare table ---------- */
.compare-wrap{
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:var(--surface);
  box-shadow:var(--sh-1);
  overflow:hidden;
}
.compare-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;}
table.compare-table{
  width:100%;min-width:720px;border-collapse:collapse;font-size:14.5px;
}
table.compare-table thead th{
  background:var(--ink-900);
  color:#fff;
  font-size:13.5px;
  font-weight:600;
  letter-spacing:.02em;
  padding:16px 20px;
  text-align:left;
  white-space:nowrap;
}
table.compare-table tbody td{
  padding:15px 20px;
  border-bottom:1px solid var(--line);
  color:#33403E;
  vertical-align:middle;
}
table.compare-table tbody tr:nth-child(odd){background:var(--brand-100);}
table.compare-table tbody tr:nth-child(even){background:var(--surface);}
table.compare-table tbody tr:last-child td{border-bottom:0;}
table.compare-table tbody td:first-child{
  color:var(--brand-700);
  font-weight:600;
  white-space:nowrap;
}
table.compare-table tbody tr:hover{background:var(--accent-tint);}
.table-hint{font-size:13px;color:var(--muted);margin-top:12px;}

/* ---------- Stat bar ---------- */
.stat-bar{
  display:grid;gap:16px;grid-template-columns:1fr;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:24px;box-shadow:var(--sh-1);
}
@media (min-width:768px){ .stat-bar{grid-template-columns:repeat(4,1fr);gap:0;} }
.stat-item{padding:8px 0;}
@media (min-width:768px){
  .stat-item{padding:4px 24px;border-left:1px solid var(--line);}
  .stat-item:first-child{border-left:0;padding-left:4px;}
}
.stat-item .num{
  font-family:var(--font-num);font-size:28px;font-weight:700;color:var(--brand-700);
  line-height:1.2;
}
.stat-item .label{font-size:13.5px;color:var(--muted);margin-top:4px;}

/* ---------- FAQ ---------- */
.faq-accordion .accordion-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .22s var(--ease);
}
.faq-accordion .accordion-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--accent-500);opacity:0;transition:opacity .22s var(--ease);
}
.faq-accordion .accordion-item{position:relative;}
.faq-accordion .accordion-item:has(.accordion-button:not(.collapsed))::before{opacity:1;}
.faq-accordion .accordion-button{
  background:transparent;
  color:var(--ink-900);
  font-size:16px;font-weight:600;
  padding:18px 24px;
  box-shadow:none;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-accordion .accordion-button:not(.collapsed){color:var(--brand-700);background:transparent;}
.faq-accordion .accordion-button:focus{box-shadow:none;outline:2px solid var(--accent-500);outline-offset:-2px;}
.faq-accordion .accordion-button::after{display:none;}
.faq-accordion .accordion-button .faq-icon{
  flex:0 0 auto;width:22px;height:22px;position:relative;
  transition:transform .25s var(--ease);
}
.faq-accordion .accordion-button .faq-icon::before,
.faq-accordion .accordion-button .faq-icon::after{
  content:"";position:absolute;background:var(--accent-500);border-radius:2px;
}
.faq-accordion .accordion-button .faq-icon::before{left:0;top:10px;width:22px;height:2px;}
.faq-accordion .accordion-button .faq-icon::after{left:10px;top:0;width:2px;height:22px;transition:opacity .25s var(--ease);}
.faq-accordion .accordion-button:not(.collapsed) .faq-icon::after{opacity:0;}
.faq-accordion .accordion-body{
  padding:0 24px 20px;
  font-size:15px;line-height:1.85;color:var(--muted);
}
.faq-accordion .accordion-body p{margin-bottom:1.1em;}

/* ---------- CTA ---------- */
.cta-block{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,var(--brand-700) 0%,var(--ink-900) 100%);
  border-radius:var(--r-xl);
  padding:40px 28px;
  color:#fff;
}
@media (min-width:992px){ .cta-block{padding:56px;} }
.cta-block::before,
.cta-block::after{
  content:"";position:absolute;border-radius:50%;
  background:rgba(240,129,59,.14);pointer-events:none;
}
.cta-block::before{width:280px;height:280px;top:-120px;right:-60px;}
.cta-block::after{width:200px;height:200px;bottom:-110px;left:-40px;background:rgba(240,129,59,.09);}
.cta-grid{position:relative;z-index:2;display:grid;grid-template-columns:1fr;gap:32px;align-items:center;}
@media (min-width:992px){ .cta-grid{grid-template-columns:1fr 140px;gap:48px;} }
.cta-block h2{color:#fff;margin-bottom:14px;}
.cta-block p{color:rgba(255,255,255,.78);font-size:15.5px;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:8px;}
.cta-meta{
  display:flex;flex-wrap:wrap;gap:20px;margin-top:22px;
  font-size:13px;color:rgba(255,255,255,.65);font-family:var(--font-num);
}
.qr-box{
  background:#fff;border-radius:var(--r-md);padding:10px;
  width:140px;text-align:center;
}
.qr-box img{width:100%;height:auto;border-radius:8px;}
.qr-box span{display:block;font-size:12px;color:var(--muted);margin-top:6px;font-family:var(--font-cn);}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--ink-900);
  color:rgba(255,255,255,.72);
  padding:56px 0 0;
  margin-top:0;
}
.footer-grid{
  display:grid;grid-template-columns:1fr;gap:28px;
  padding-bottom:40px;
}
@media (min-width:768px){ .footer-grid{grid-template-columns:repeat(2,1fr);} }
@media (min-width:992px){ .footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;} }
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{background:var(--brand-600);}
.footer-brand .brand-text{color:#fff;font-size:17px;font-weight:700;}
.footer-about{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);max-width:340px;margin:0;}
.footer-col-title{
  display:block;
  font-size:13px;
  letter-spacing:.08em;
  color:rgba(255,255,255,.55);
  font-weight:600;
  margin:0 0 16px;
  background:none;border:0;padding:0;text-align:left;width:100%;
}
.footer-col-title.d-lg-none{cursor:pointer;}
.footer-links li{margin-bottom:10px;}
.footer-links a{
  font-size:14px;color:rgba(255,255,255,.72);
  text-decoration:none;
  transition:color .2s var(--ease);
}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 28px;
  display:flex;flex-wrap:wrap;gap:12px;
  justify-content:space-between;align-items:center;
  font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.65);}
.footer-bottom a:hover{color:#fff;}

/* ---------- Utility ---------- */
.mt-8{margin-top:8px;}
.mt-24{margin-top:24px;}
.mt-40{margin-top:40px;}
.bg-white-block{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
@media (max-width:575px){
  .hero-actions .btn{width:100%;}
  .cta-actions .btn{width:100%;}
  .faq-accordion .accordion-button{padding:16px 18px;font-size:15px;}
  .faq-accordion .accordion-body{padding:0 18px 18px;}
  .point-card{padding:18px;}
  .device-card .body{padding:18px;}
}

/* roulang page: category3 */
:root{
  --brand-700:#12544F;
  --brand-600:#176B63;
  --brand-100:#E3F0ED;
  --accent-500:#F0813B;
  --accent-600:#D96A24;
  --accent-tint:#FFF1E4;
  --ink-900:#0B2B29;
  --paper:#F6F4EF;
  --surface:#FFFFFF;
  --line:#E5E0D6;
  --text:#23282A;
  --muted:#6C7674;
  --success:#2E7D5B;
  --warn:#C9761F;
  --danger:#C0433A;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:18px;
  --r-xl:24px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,43,41,.04);
  --sh-2:0 10px 24px -12px rgba(11,43,41,.18);
  --sh-3:0 24px 48px -24px rgba(11,43,41,.28);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Inter",ui-sans-serif,system-ui,sans-serif;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.85;
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;letter-spacing:-.2px;}
p{margin:0 0 1.15em;}
a{color:var(--brand-600);text-decoration:none;}
a:hover{color:var(--accent-600);}
img{max-width:100%;display:block;}
button{font-family:inherit;}
ul{list-style:none;}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media (min-width:992px){.container{padding-left:28px;padding-right:28px;}}
@media (min-width:1400px){.container{max-width:1280px;}}
.section{padding:88px 0;}
.section-tight{padding:72px 0;}
@media (max-width:991px){.section{padding:72px 0;}.section-tight{padding:64px 0;}}
@media (max-width:575px){.section{padding:56px 0;}.section-tight{padding:52px 0;}}

/* 顶部命令栏 */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(246,244,239,.88);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh-1);border-bottom-color:#D6D0C3;}
.header-inner{display:flex;align-items:center;gap:24px;height:68px;}
@media (max-width:991px){.header-inner{height:60px;}}
.brand{display:inline-flex;align-items:center;gap:10px;white-space:nowrap;text-decoration:none;}
.brand-mark{position:relative;width:28px;height:28px;border-radius:9px;background:var(--brand-700);flex:none;}
.brand-mark::after{content:"";position:absolute;right:-2px;bottom:-2px;width:10px;height:10px;border-radius:50%;background:var(--accent-500);border:2px solid var(--paper);}
.brand-text{font-size:17px;font-weight:700;color:var(--brand-700);letter-spacing:-.2px;}
.nav-menu{display:flex;align-items:center;gap:28px;margin:0;padding:0;}
.nav-menu a{position:relative;font-size:15px;font-weight:500;color:var(--ink-900);padding-bottom:4px;transition:color .18s var(--ease);}
.nav-menu a::after{content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;background:var(--accent-500);border-radius:2px;transform:scaleX(0);transform-origin:left center;transition:transform .22s var(--ease);}
.nav-menu a:hover{color:var(--brand-700);}
.nav-menu a:hover::after{transform:scaleX(1);}
.nav-menu a.is-active{color:var(--brand-700);font-weight:600;}
.nav-menu a.is-active::after{transform:scaleX(1);}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.command-search{position:relative;width:240px;}
.command-search input{
  width:100%;height:38px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:var(--surface);
  padding:0 46px 0 38px;font-size:14px;color:var(--text);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.command-search input::placeholder{color:#9AA3A1;}
.command-search input:focus{outline:none;border-color:var(--brand-600);box-shadow:0 0 0 4px rgba(23,107,99,.10);}
.command-search .search-ico{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--muted);display:flex;}
.command-search kbd{
  position:absolute;right:10px;top:50%;transform:translateY(-50%);
  font-family:var(--font-num);font-size:11px;color:var(--muted);
  background:var(--paper);border:1px solid var(--line);border-radius:6px;padding:1px 6px;
}
.icon-btn{
  width:36px;height:36px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:transparent;color:var(--brand-700);
  display:inline-flex;align-items:center;justify-content:center;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.icon-btn:hover{background:var(--brand-100);border-color:var(--brand-100);color:var(--brand-700);}
.hamburger{
  margin-left:auto;width:40px;height:40px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:transparent;color:var(--brand-700);
  display:inline-flex;align-items:center;justify-content:center;
}
.hamburger:hover{background:var(--brand-100);}
/* 移动端抽屉 */
.offcanvas.mobile-nav{width:320px;background:var(--paper);border-left:1px solid var(--line);}
.mobile-nav .offcanvas-header{padding:16px 20px;border-bottom:1px solid var(--line);}
.mobile-nav .offcanvas-body{padding:20px;display:flex;flex-direction:column;gap:22px;}
.mobile-menu{display:flex;flex-direction:column;gap:4px;margin:0;padding:0;}
.mobile-menu a{display:block;padding:12px 6px;font-size:16px;font-weight:500;color:var(--ink-900);border-radius:var(--r-sm);}
.mobile-menu a:hover{background:var(--brand-100);color:var(--brand-700);}
.mobile-menu a.is-active{color:var(--brand-700);font-weight:600;background:var(--brand-100);}
.mobile-nav .btn-close{filter:grayscale(1) brightness(.6);opacity:.7;}

/* 按钮 */
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-sm);border:1px solid transparent;
  background:var(--accent-500);color:#fff;font-size:16px;font-weight:600;
  cursor:pointer;transition:background .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.btn-main:hover{background:var(--accent-600);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-main:active{transform:translateY(0);box-shadow:none;background:var(--accent-600);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;
  height:48px;padding:0 24px;border-radius:var(--r-sm);
  border:1px solid var(--brand-700);background:transparent;color:var(--brand-700);
  font-size:16px;font-weight:600;transition:background .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);
}
.btn-ghost:hover{background:var(--brand-100);color:var(--brand-700);transform:translateY(-1px);}
.btn-outline-light{
  display:inline-flex;align-items:center;justify-content:center;
  height:48px;padding:0 24px;border-radius:var(--r-sm);
  border:1px solid rgba(255,255,255,.62);background:transparent;color:#fff;
  font-size:16px;font-weight:600;transition:background .22s var(--ease),transform .22s var(--ease);
}
.btn-outline-light:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-1px);}
.btn-sm-main{height:40px;padding:0 22px;font-size:15px;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand-700);font-weight:600;font-size:15px;}
.link-arrow .arrow{transition:transform .2s var(--ease);}
.link-arrow:hover{color:var(--accent-600);}
.link-arrow:hover .arrow{transform:translateX(3px);}

/* 徽章 */
.pill{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;
  border-radius:var(--r-pill);background:var(--brand-100);color:var(--brand-700);
  font-size:13px;font-weight:600;white-space:nowrap;
}
.pill-soft{background:var(--accent-tint);color:var(--accent-600);}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;}

/* 分区标题 */
.sec-head{margin-bottom:40px;}
.sec-kicker{font-size:12px;letter-spacing:.12em;color:var(--muted);margin:0 0 10px 16px;}
.sec-title{position:relative;padding-left:16px;font-size:clamp(24px,3vw,34px);line-height:1.35;color:var(--brand-700);}
.sec-title::before{content:"";position:absolute;left:0;top:.38em;width:3px;height:18px;border-radius:2px;background:var(--accent-500);}
.sec-sub{margin:12px 0 0 16px;font-size:15px;color:var(--muted);max-width:780px;}

/* 分类 Hero */
.cat-hero{
  position:relative;background:var(--brand-100);padding:56px 0 64px;overflow:hidden;
}
.cat-hero::before{
  content:"";position:absolute;right:-120px;top:-140px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(240,129,59,.16),rgba(240,129,59,0) 68%);
}
.breadcrumb-line{position:relative;display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:28px;}
.breadcrumb-line a{color:var(--muted);}
.breadcrumb-line a:hover{color:var(--brand-600);}
.breadcrumb-line .sep{color:#BFB9AC;}
.breadcrumb-line .current{color:var(--muted);max-width:280px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.hero-grid{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;}
.hero-copy h1{font-size:clamp(30px,4.6vw,46px);line-height:1.25;color:var(--ink-900);margin:18px 0 14px;}
.hero-lead{font-size:17px;line-height:1.8;color:#3C4A48;margin:0 0 26px;max-width:520px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:24px;}
.hero-points{display:flex;flex-wrap:wrap;gap:8px 18px;padding:0;margin:0;font-size:14px;color:var(--brand-700);}
.hero-points li{position:relative;padding-left:16px;}
.hero-points li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--accent-500);}
.hero-figure{position:relative;}
.hero-figure img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-xl);border:1px solid var(--line);box-shadow:var(--sh-3);background:var(--surface);
}
.hero-float{
  position:absolute;left:-16px;bottom:22px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);box-shadow:var(--sh-2);padding:12px 16px;display:flex;flex-direction:column;
}
.hero-float strong{font-family:var(--font-num);font-size:19px;color:var(--brand-700);letter-spacing:-.2px;}
.hero-float span{font-size:12px;color:var(--muted);}

/* 要点卡 */
.point-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.point-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.point-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.point-num{font-family:var(--font-num);font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--accent-600);}
.point-ico{
  width:42px;height:42px;border-radius:var(--r-sm);background:var(--brand-100);color:var(--brand-700);
  display:flex;align-items:center;justify-content:center;margin:14px 0 16px;
}
.point-card h3{font-size:18px;margin-bottom:8px;color:var(--ink-900);}
.point-card p{margin:0;font-size:14px;line-height:1.75;color:var(--muted);}

/* 主体内容 */
.body-grid{display:grid;grid-template-columns:300px 1fr;gap:56px;align-items:start;}
.body-main{max-width:800px;}
.body-main p{font-size:17px;line-height:1.9;margin-bottom:1.15em;color:var(--text);}
.note-bar{
  margin-top:8px;background:var(--accent-tint);border-left:3px solid var(--accent-500);
  border-radius:var(--r-md);padding:18px 22px;font-size:15px;line-height:1.85;color:#4C4A44;
}
.note-bar strong{color:var(--accent-600);}

/* 场景列表 */
.scene-list{border-top:1px solid var(--line);margin-top:8px;}
.scene-row{
  display:grid;grid-template-columns:230px 1fr;gap:24px;align-items:start;
  padding:22px 16px;border-bottom:1px solid var(--line);
  transition:background .2s var(--ease);
}
.scene-row:hover{background:var(--brand-100);}
.scene-row:hover .pill{background:var(--surface);}
.scene-desc{display:flex;gap:14px;align-items:flex-start;}
.scene-ico{flex:none;color:var(--brand-600);margin-top:4px;display:flex;}
.scene-desc p{margin:0;font-size:15px;line-height:1.8;color:var(--muted);}

/* 评价条 */
.quote-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.quote-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px;box-shadow:var(--sh-1);transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.quote-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.quote-mark{
  width:36px;height:36px;border-radius:10px;background:var(--accent-tint);color:var(--accent-500);
  display:flex;align-items:center;justify-content:center;font-family:var(--font-num);font-size:22px;
  font-weight:700;line-height:1;margin-bottom:14px;
}
.quote-card p{font-size:16px;line-height:1.85;color:var(--text);margin:0;}
.quote-foot{display:flex;align-items:center;gap:12px;margin-top:18px;}
.quote-avatar{width:40px;height:40px;border-radius:50%;overflow:hidden;flex:none;background:var(--brand-100);}
.quote-avatar img{width:100%;height:100%;object-fit:cover;}
.quote-name{font-size:14px;font-weight:600;color:var(--ink-900);}
.quote-role{font-size:12px;color:var(--muted);}

/* 表单 */
.form-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:32px;box-shadow:var(--sh-1);max-width:820px;
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.form-row{margin-bottom:20px;}
.form-row label{display:block;font-size:14px;font-weight:600;color:var(--ink-900);margin-bottom:8px;}
.req{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--accent-500);margin-left:6px;vertical-align:middle;}
.form-row input,.form-row textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--r-sm);
  background:var(--surface);color:var(--text);font-size:15px;font-family:inherit;
  padding:0 14px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.form-row input{height:44px;}
.form-row textarea{padding:12px 14px;line-height:1.75;resize:vertical;}
.form-row input::placeholder,.form-row textarea::placeholder{color:#9AA3A1;}
.form-row input:focus,.form-row textarea:focus{outline:none;border-color:var(--brand-600);box-shadow:0 0 0 4px rgba(23,107,99,.12);}
.form-row.is-invalid input,.form-row.is-invalid textarea{border-color:var(--danger);box-shadow:0 0 0 4px rgba(192,67,58,.10);}
.err-msg{display:block;margin-top:6px;font-size:13px;color:var(--danger);}
.form-check{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--muted);margin-bottom:22px;}
.form-foot{display:flex;align-items:center;gap:18px;flex-wrap:wrap;}
.form-tip{margin:0;font-size:13px;color:var(--muted);}

/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:920px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-left:3px solid transparent;
  border-radius:var(--r-md);transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item:hover{box-shadow:var(--sh-1);}
.faq-item:has(.faq-toggle[aria-expanded="true"]){border-left-color:var(--accent-500);box-shadow:var(--sh-1);}
.faq-q{margin:0;font-size:16px;}
.faq-toggle{
  display:flex;align-items:center;gap:16px;width:100%;padding:18px 24px;
  background:none;border:0;text-align:left;font-size:16px;font-weight:600;
  color:var(--ink-900);cursor:pointer;line-height:1.6;
}
.faq-toggle span:first-child{flex:1;}
.faq-icon{position:relative;width:20px;height:20px;flex:none;}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand-700);border-radius:2px;transition:transform .22s var(--ease),background .22s var(--ease);}
.faq-icon::before{left:2px;right:2px;top:9px;height:2px;}
.faq-icon::after{top:2px;bottom:2px;left:9px;width:2px;}
.faq-toggle[aria-expanded="true"] .faq-icon::after{transform:scaleY(0);}
.faq-toggle[aria-expanded="true"] .faq-icon::before{background:var(--accent-500);}
.faq-a{padding:0 24px 20px 24px;font-size:15px;line-height:1.85;color:var(--muted);}
.faq-a p{margin:0 0 1.1em;}
.faq-a p:last-child{margin-bottom:0;}

/* CTA */
.cta-panel{
  position:relative;overflow:hidden;color:#fff;
  background:linear-gradient(135deg,var(--brand-700),var(--ink-900));
  border-radius:var(--r-xl);padding:56px;box-shadow:var(--sh-3);
  display:grid;grid-template-columns:1fr 160px;gap:40px;align-items:center;
}
.cta-panel::before,.cta-panel::after{
  content:"";position:absolute;border-radius:50%;background:rgba(240,129,59,.14);pointer-events:none;
}
.cta-panel::before{width:220px;height:220px;right:120px;top:-110px;}
.cta-panel::after{width:150px;height:150px;left:-60px;bottom:-70px;background:rgba(240,129,59,.10);}
.cta-main{position:relative;z-index:1;}
.cta-panel h2{color:#fff;font-size:clamp(22px,2.6vw,30px);line-height:1.35;margin-bottom:12px;}
.cta-panel p{color:rgba(255,255,255,.78);font-size:15px;margin-bottom:26px;max-width:520px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.cta-meta{display:flex;flex-wrap:wrap;gap:22px;padding:0;margin:24px 0 0;font-size:13px;font-family:var(--font-num);color:rgba(255,255,255,.62);}
.cta-qr{position:relative;z-index:1;background:#fff;border-radius:var(--r-md);padding:12px;text-align:center;width:144px;}
.cta-qr img{width:120px;height:120px;object-fit:cover;border-radius:8px;}
.cta-qr span{display:block;margin-top:8px;font-size:12px;color:var(--muted);line-height:1.5;}

/* 页脚 */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.72);padding:72px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:var(--accent-500);}
.footer-brand .brand-mark::after{background:#fff;border-color:var(--ink-900);}
.footer-brand .brand-text{color:#fff;}
.footer-about{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);margin:0;max-width:340px;}
.footer-col-title{
  font-size:13px;font-weight:600;letter-spacing:.08em;color:rgba(255,255,255,.55);
  margin:0 0 16px;background:none;border:0;padding:0;text-align:left;
}
.footer-links{display:flex;flex-direction:column;gap:12px;padding:0;margin:0;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.12);padding:20px 0 28px;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.6);}
.footer-bottom a:hover{color:#fff;}

/* 响应式 */
@media (max-width:1199px){
  .point-grid{grid-template-columns:repeat(2,1fr);}
  .body-grid{grid-template-columns:1fr;gap:28px;}
}
@media (max-width:991px){
  .nav-menu{gap:20px;}
  .command-search{width:200px;}
  .cta-panel{padding:40px;grid-template-columns:1fr;}
  .cta-qr{margin-top:8px;}
}
@media (max-width:768px){
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-figure{order:2;}
  .hero-float{left:auto;right:14px;bottom:14px;}
  .scene-row{grid-template-columns:1fr;gap:10px;}
  .quote-grid{grid-template-columns:1fr;}
  .form-grid{grid-template-columns:1fr;}
  .form-card{padding:22px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-col-title{width:100%;border-bottom:1px solid rgba(255,255,255,.12);padding-bottom:12px;}
}
@media (max-width:575px){
  .point-grid{grid-template-columns:1fr;}
  .hero-actions .btn-main,.hero-actions .btn-ghost,
  .cta-actions .btn-main,.cta-actions .btn-outline-light{width:100%;}
  .faq-toggle{padding:16px 18px;font-size:15px;}
  .faq-a{padding:0 18px 18px 18px;}
  .cta-panel{padding:28px;}
  .cta-qr{width:100%;max-width:180px;}
}