/* roulang page: index */
:root{
  --primary:#C2189B;
  --primary-dark:#A4147F;
  --primary-soft:rgba(194,24,155,.10);
  --accent:#17C6D6;
  --accent-dark:#0E8F9B;
  --bg-dark:#0B0716;
  --bg-mid:#16122A;
  --bg-light:#F6F4FB;
  --text:#14101F;
  --text-muted:#6B6580;
  --line:rgba(20,16,31,.08);
  --line-strong:rgba(20,16,31,.14);
  --line-dark:rgba(255,255,255,.10);
  --positive:#1FD8A4;
  --negative:#FF6B5E;
  --warn:#FFC53D;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:20px;
  --shadow-1:0 1px 2px rgba(11,7,22,.06);
  --shadow-2:0 12px 28px rgba(11,7,22,.12);
  --mono:ui-monospace,"JetBrains Mono","SFMono-Regular",Menlo,Consolas,monospace;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:#fff;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0;padding:0}
h1,h2,h3,h4,h5,p,figure{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section--light{background:var(--bg-light)}
.section--dark{background:var(--bg-mid);color:#fff}
.section--dark .section-desc{color:rgba(255,255,255,.66)}
.section--dark .section-title{color:#fff}

/* ============ HEADER ============ */
.site-header{
  position:sticky;top:0;z-index:200;
  background:var(--bg-dark);
  color:#fff;
  border-bottom:1px solid var(--line-dark);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 26px rgba(11,7,22,.34)}
.topbar-inner{display:flex;align-items:center;gap:22px;height:64px}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{
  position:relative;width:30px;height:30px;border-radius:9px;flex:none;
  background:linear-gradient(135deg,var(--primary) 0%,var(--accent) 100%);
}
.brand-mark::after{content:"";position:absolute;inset:9px;border-radius:3px;background:var(--bg-dark)}
.brand-text{font-size:21px;font-weight:800;letter-spacing:.3px;white-space:nowrap;line-height:1}
.hotwords{display:flex;gap:8px;flex-wrap:wrap}
.hot-pill{
  font-size:12px;line-height:24px;height:24px;padding:0 12px;border-radius:999px;
  background:rgba(194,24,155,.22);color:#F0BFE6;white-space:nowrap;
  transition:background-color .18s ease,color .18s ease;
}
.hot-pill:hover{background:rgba(194,24,155,.45);color:#fff}
.topbar-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-wrap{display:flex;align-items:center;gap:8px}
.search-wrap .icon-btn{
  width:36px;height:36px;border-radius:999px;display:grid;place-items:center;
  color:rgba(255,255,255,.78);transition:background-color .18s,color .18s;
}
.search-wrap .icon-btn:hover{background:rgba(255,255,255,.10);color:#fff}
.search-input{
  width:0;height:36px;padding:0;border-radius:999px;
  border:1.5px solid transparent;background:rgba(255,255,255,.08);color:#fff;
  font-size:14px;opacity:0;
  transition:width .25s ease,padding .25s ease,opacity .2s ease,border-color .2s ease;
}
.search-input::placeholder{color:rgba(255,255,255,.45)}
.search-wrap.is-open .search-input{width:240px;padding:0 16px;opacity:1}
.search-wrap.is-open .search-input:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 3px rgba(194,24,155,.22)}
.burger{
  display:none;width:44px;height:44px;border-radius:12px;place-items:center;
  color:#fff;background:rgba(255,255,255,.08);
}
.burger span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;position:relative}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:#fff;border-radius:2px}
.burger span::before{top:-6px}
.burger span::after{top:6px}

.channelbar{border-top:1px solid rgba(255,255,255,.07)}
.channelbar-inner{display:flex;align-items:center;gap:30px;height:48px;overflow-x:auto;scrollbar-width:none}
.channelbar-inner::-webkit-scrollbar{display:none}
.channel{
  position:relative;font-size:15px;color:rgba(255,255,255,.72);
  padding:15px 0;white-space:nowrap;transition:color .18s ease;
}
.channel::after{
  content:"";position:absolute;left:0;right:0;bottom:6px;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;
  transition:transform .18s ease;
}
.channel:hover{color:#fff}
.channel:hover::after{transform:scaleX(1)}
.channel.is-active{color:#fff;font-weight:700}
.channel.is-active::after{transform:scaleX(1)}

/* ============ DRAWER ============ */
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,7,22,.6);z-index:250;
  opacity:0;pointer-events:none;transition:opacity .25s ease;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:82vw;max-width:340px;z-index:300;
  background:var(--bg-dark);color:#fff;padding:24px;overflow-y:auto;
  transform:translateX(100%);transition:transform .28s ease;
}
.drawer.is-open{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}
.drawer-close{width:44px;height:44px;border-radius:12px;background:rgba(255,255,255,.08);color:#fff;display:grid;place-items:center;font-size:20px}
.drawer-search{width:100%;height:44px;border-radius:999px;border:1.5px solid rgba(255,255,255,.16);background:rgba(255,255,255,.06);color:#fff;padding:0 18px;margin-bottom:22px}
.drawer-search::placeholder{color:rgba(255,255,255,.45)}
.drawer-search:focus{border-color:var(--primary);outline:none}
.drawer-nav a{display:block;padding:14px 0;font-size:16px;color:rgba(255,255,255,.82);border-bottom:1px solid var(--line-dark)}
.drawer-nav a.is-active{color:#fff;font-weight:700}
.drawer-tags{display:flex;flex-wrap:wrap;gap:8px;margin:22px 0}
.drawer-cta{margin-top:8px}

/* ============ BUTTONS ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:12px;border:1.5px solid transparent;
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px rgba(194,24,155,.28)}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(194,24,155,.24)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.32)}
.btn-ghost:hover{background:rgba(255,255,255,.10);border-color:#fff}
.btn-outline{background:transparent;color:var(--primary);border-color:var(--primary)}
.btn-outline:hover{background:var(--primary-soft)}
.btn-sm{height:38px;padding:0 18px;font-size:14px;border-radius:10px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.6;filter:saturate(.6);pointer-events:none}

/* ============ PILLS / LABELS ============ */
.pill{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:600;background:var(--primary-soft);color:var(--primary);
  white-space:nowrap;
}
.pill--accent{background:rgba(23,198,214,.14);color:var(--accent-dark)}
.pill--warn{background:rgba(255,197,61,.20);color:#8A6100}
.pill--dark{background:rgba(255,255,255,.10);color:rgba(255,255,255,.82)}

/* ============ HERO ============ */
.hero{position:relative;background:var(--bg-dark);color:#fff;overflow:hidden;isolation:isolate}
.hero-glow{
  position:absolute;width:760px;height:760px;top:-320px;left:-140px;border-radius:50%;
  background:radial-gradient(circle,rgba(194,24,155,.12) 0%,rgba(194,24,155,0) 70%);
  filter:blur(120px);pointer-events:none;z-index:0;
}
.hero::after{
  content:"";position:absolute;inset:0;z-index:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:52px 52px;
  -webkit-mask-image:radial-gradient(circle at 72% 28%,#000 0%,transparent 72%);
  mask-image:radial-gradient(circle at 72% 28%,#000 0%,transparent 72%);
}
.hero-inner{
  position:relative;z-index:2;display:grid;grid-template-columns:1.12fr .88fr;
  gap:56px;align-items:center;padding:76px 0 96px;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;
  color:#F0BFE6;background:rgba(194,24,155,.16);
  border:1px solid rgba(194,24,155,.38);border-radius:999px;padding:6px 14px;
}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--accent);display:block}
.hero h1{
  font-size:44px;line-height:1.26;font-weight:800;letter-spacing:-.6px;
  margin:22px 0 18px;
}
.hero h1 .hl{color:var(--accent)}
.hero-sub{font-size:17px;line-height:1.8;color:rgba(255,255,255,.72);max-width:560px}
.hero-cta{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap}
.hero-tags{display:flex;gap:10px;margin-top:28px;flex-wrap:wrap}
.hero-tag{
  font-size:13px;height:30px;line-height:28px;padding:0 14px;border-radius:999px;
  border:1px solid rgba(255,255,255,.18);color:rgba(255,255,255,.78);
  transition:border-color .18s,color .18s,background-color .18s;
}
.hero-tag:hover{border-color:var(--accent);color:#fff;background:rgba(23,198,214,.12)}

.hero-visual{position:relative}
.hero-figure{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  aspect-ratio:16/10;background:var(--bg-mid);
  border:1px solid rgba(255,255,255,.10);
}
.hero-figure img{width:100%;height:100%;object-fit:cover}
.hero-figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,7,22,0) 30%,rgba(11,7,22,.62) 100%);
}
.float-card{
  position:absolute;z-index:3;border-radius:14px;padding:14px 18px;
  background:rgba(22,18,42,.92);border:1px solid rgba(255,255,255,.12);
  box-shadow:0 16px 34px rgba(11,7,22,.42);
}
.float-card .num{
  font-family:var(--mono);font-size:22px;font-weight:700;color:#fff;
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;line-height:1.2;
}
.float-card .lbl{font-size:12px;color:rgba(255,255,255,.62);letter-spacing:.02em}
.float-card--1{left:-22px;bottom:30px}
.float-card--2{right:-16px;top:26px}

/* ============ METRICS ============ */
.metrics{background:var(--bg-light);padding:56px 0 24px}
.metrics-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow-1);overflow:hidden;
}
.metric{padding:30px 26px;border-right:1px solid var(--line)}
.metric:last-child{border-right:0}
.metric-num{
  font-family:var(--mono);font-size:46px;font-weight:700;line-height:1.1;
  letter-spacing:-.02em;font-variant-numeric:tabular-nums;color:var(--text);
}
.metric-num .unit{font-size:15px;font-weight:600;color:var(--text-muted);margin-left:4px;font-family:var(--sans)}
.metric-label{font-size:14px;color:var(--text-muted);margin-top:8px}
.metric-delta{
  display:inline-flex;align-items:center;gap:6px;margin-top:12px;
  font-size:12px;font-family:var(--mono);padding:3px 10px;border-radius:999px;
}
.metric-delta.up{color:#0E8F6B;background:rgba(31,216,164,.16)}
.metric-delta.down{color:#C2412F;background:rgba(255,107,94,.16)}
.metric-bar{height:2px;border-radius:2px;background:var(--primary);margin-top:18px}

/* ============ SECTION HEAD ============ */
.section-head{
  display:flex;justify-content:space-between;align-items:flex-end;gap:24px;
  margin-bottom:44px;flex-wrap:wrap;
}
.section-title{font-size:28px;font-weight:800;line-height:1.3;letter-spacing:-.3px}
.section-title::before{
  content:"";display:inline-block;width:4px;height:22px;border-radius:2px;
  background:var(--primary);margin-right:12px;vertical-align:-3px;
}
.section-desc{font-size:15px;color:var(--text-muted);margin-top:10px;max-width:640px}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);white-space:nowrap}
.link-more::after{content:"→";transition:transform .18s ease}
.link-more:hover::after{transform:translateX(4px)}

/* ============ SERVICE MATRIX ============ */
.matrix{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.svc{
  display:flex;flex-direction:column;gap:12px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px;box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.svc:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(194,24,155,.24)}
.svc-index{
  font-family:var(--mono);font-size:12px;font-weight:700;letter-spacing:.1em;
  color:var(--primary);
}
.svc-title{font-size:18px;font-weight:700;line-height:1.45}
.svc-desc{font-size:14px;color:var(--text-muted);line-height:1.75}
.svc-points{display:flex;flex-direction:column;gap:8px;margin-top:2px}
.svc-points li{position:relative;padding-left:16px;font-size:13.5px;color:var(--text-muted);line-height:1.7}
.svc-points li::before{
  content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;
  background:var(--accent);
}
.svc-link{margin-top:auto;display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary)}
.svc-link::after{content:"→";transition:transform .18s ease}
.svc:hover .svc-link::after{transform:translateX(4px)}
.svc--main{grid-column:span 2;grid-row:span 2;padding:0;overflow:hidden;gap:0}
.svc--main .svc-media{aspect-ratio:16/9;overflow:hidden;background:var(--bg-light)}
.svc--main .svc-media img{width:100%;height:100%;object-fit:cover}
.svc--main .svc-main-body{padding:28px;display:flex;flex-direction:column;gap:12px;flex:1}
.svc--main .svc-title{font-size:22px}
.svc--main .svc-desc{font-size:15px}

/* ============ COMPARE ============ */
.cmp-list{display:flex;flex-direction:column;gap:28px;max-width:960px;margin:0 auto}
.cmp-item{
  background:rgba(255,255,255,.04);border:1px solid var(--line-dark);
  border-radius:var(--r-md);padding:24px 26px;
}
.cmp-head{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:18px}
.cmp-tag{font-size:15px;font-weight:700;color:#fff}
.cmp-diff{
  font-family:var(--mono);font-size:24px;font-weight:700;color:var(--primary);
  letter-spacing:-.02em;font-variant-numeric:tabular-nums;
}
.cmp-line{display:grid;grid-template-columns:64px 1fr 84px;align-items:center;gap:14px;margin-bottom:12px}
.cmp-line:last-child{margin-bottom:0}
.cmp-side{font-size:13px;color:rgba(255,255,255,.58)}
.cmp-track{height:8px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden}
.cmp-track i{display:block;height:100%;border-radius:999px;background:rgba(255,255,255,.28);transition:width .8s ease}
.cmp-track--after i{background:var(--primary)}
.cmp-num{
  font-family:var(--mono);font-size:14px;font-weight:700;color:rgba(255,255,255,.78);
  text-align:right;font-variant-numeric:tabular-nums;
}
.cmp-line--after .cmp-num{color:#fff}

/* ============ NEWS (CMS) ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.news-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--bg-light)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.news-card:hover .news-thumb img{transform:scale(1.04)}
.news-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-title{
  font-size:17px;font-weight:700;line-height:1.5;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-sum{
  font-size:14px;color:var(--text-muted);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;align-items:center;gap:12px;
  font-size:13px;color:var(--text-muted);
}
.empty-state{
  grid-column:1/-1;padding:64px 24px;text-align:center;background:#fff;
  border:1px dashed var(--line-strong);border-radius:var(--r-md);color:var(--text-muted);
}
.empty-state .empty-icon{
  width:56px;height:56px;margin:0 auto 16px;border-radius:16px;
  background:var(--primary-soft);display:grid;place-items:center;
  color:var(--primary);font-size:24px;font-weight:700;
}

/* ============ CATEGORY CARDS ============ */
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.cat-card{
  position:relative;display:flex;align-items:flex-end;min-height:300px;
  border-radius:var(--r-lg);overflow:hidden;color:#fff;box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.cat-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.cat-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.cat-card:hover img{transform:scale(1.05)}
.cat-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,7,22,.18) 0%,rgba(11,7,22,.88) 100%);
}
.cat-body{position:relative;z-index:2;padding:26px;width:100%}
.cat-body h3{font-size:19px;font-weight:700;margin:12px 0 8px}
.cat-body p{font-size:14px;color:rgba(255,255,255,.72);line-height:1.7}
.cat-more{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:13.5px;font-weight:600;color:var(--accent)}
.cat-more::after{content:"→";transition:transform .18s ease}
.cat-card:hover .cat-more::after{transform:translateX(4px)}

/* ============ FAQ ============ */
.faq-list{max-width:760px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;justify-content:space-between;align-items:center;gap:16px;
  text-align:left;padding:22px 0;font-size:16px;font-weight:600;line-height:1.5;
  color:var(--text);transition:color .18s ease;
}
.faq-q:hover{color:var(--primary)}
.faq-icon{position:relative;width:20px;height:20px;flex:none}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--primary);border-radius:2px;
  transition:transform .18s ease;
}
.faq-icon::before{left:0;right:0;top:9px;height:2px}
.faq-icon::after{top:0;bottom:0;left:9px;width:2px}
.faq-item.is-open .faq-icon::after{transform:scaleY(0)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-item.is-open .faq-a{max-height:420px}
.faq-a-inner{
  padding:0 0 24px 18px;font-size:15px;line-height:1.85;color:var(--text-muted);
  border-left:3px solid var(--primary);
}

/* ============ CONTACT ============ */
.contact-card{
  display:grid;grid-template-columns:1.18fr .82fr;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--shadow-1);
}
.contact-form{padding:44px}
.contact-form h2{font-size:24px;font-weight:800;margin-bottom:8px}
.contact-form .lead{font-size:14px;color:var(--text-muted);margin-bottom:28px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{margin-bottom:20px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px}
.field input,.field textarea,.field select{
  width:100%;height:44px;padding:0 14px;border-radius:var(--r-sm);
  border:1px solid var(--line-strong);background:#fff;font-size:15px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field textarea{height:auto;min-height:118px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input:focus,.field textarea:focus,.field select:focus{
  border-color:var(--primary);box-shadow:0 0 0 3px rgba(194,24,155,.16);outline:none;
}
.field .hint{font-size:12px;color:var(--text-muted);margin-top:6px}
.contact-aside{
  background:var(--bg-dark);color:#fff;padding:44px;
  display:flex;flex-direction:column;gap:26px;
}
.contact-aside h3{font-size:18px;font-weight:700}
.trust-item{display:flex;gap:14px;align-items:flex-start}
.trust-dot{
  width:34px;height:34px;flex:none;border-radius:10px;display:grid;place-items:center;
  background:rgba(194,24,155,.18);color:var(--accent);font-family:var(--mono);
  font-size:13px;font-weight:700;
}
.trust-item strong{display:block;font-size:15px;font-weight:700;margin-bottom:4px}
.trust-item span{font-size:13px;color:rgba(255,255,255,.62);line-height:1.7}
.contact-aside .aside-note{
  margin-top:auto;font-size:13px;color:rgba(255,255,255,.55);
  border-top:1px solid var(--line-dark);padding-top:20px;
}

/* ============ FOOTER ============ */
.site-footer{background:var(--bg-dark);color:rgba(255,255,255,.66);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:52px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.footer-brand .brand-text{color:#fff}
.footer-about{font-size:14px;line-height:1.8;max-width:340px}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;transition:color .18s ease}
.footer-col a:hover{color:var(--primary)}
.footer-contact li{font-size:14px;line-height:1.8;margin-bottom:10px}
.footer-contact .mark{
  font-family:var(--mono);font-size:12px;color:var(--accent);margin-right:8px;
}
.footer-bottom{
  border-top:1px solid var(--line-dark);padding:22px 0;
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  font-size:13px;
}
.footer-bottom .fb-left{display:flex;gap:18px;flex-wrap:wrap}
.to-top{
  width:40px;height:40px;border-radius:50%;display:grid;place-items:center;
  background:rgba(194,24,155,.16);color:var(--primary);font-size:16px;
  transition:background-color .18s ease,transform .18s ease;
}
.to-top:hover{background:rgba(194,24,155,.32);transform:translateY(-2px)}

/* ============ RESPONSIVE ============ */
@media (max-width:1279px){
  .container{padding:0 22px}
  .hero h1{font-size:40px}
}
@media (max-width:1023px){
  .section{padding:76px 0}
  .hero-inner{grid-template-columns:1fr;gap:44px;padding:60px 0 76px}
  .hero-sub{max-width:none}
  .hero-visual{max-width:620px}
  .metrics-grid{grid-template-columns:repeat(2,1fr)}
  .metric:nth-child(2){border-right:0}
  .metric:nth-child(1),.metric:nth-child(2){border-bottom:1px solid var(--line)}
  .matrix{grid-template-columns:repeat(2,1fr)}
  .svc--main{grid-column:span 2;grid-row:auto}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .cat-grid{grid-template-columns:repeat(2,1fr)}
  .contact-card{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-about{max-width:none}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .section{padding:56px 0}
  .hotwords{display:none}
  .channelbar{display:none}
  .burger{display:grid}
  .topbar-inner{height:58px;gap:14px}
  .brand-text{font-size:19px}
  .search-wrap{display:none}
  .hero h1{font-size:28px;letter-spacing:-.3px}
  .hero-sub{font-size:15px}
  .hero-cta .btn{flex:1 1 auto}
  .hero-figure{border-radius:16px}
  .float-card{padding:10px 14px}
  .float-card .num{font-size:17px}
  .float-card--1{left:10px;bottom:12px}
  .float-card--2{right:10px;top:12px}
  .section-title{font-size:22px}
  .section-head{margin-bottom:32px}
  .metrics{padding:40px 0 12px}
  .metrics-grid{
    display:flex;overflow-x:auto;scroll-snap-type:x mandatory;
    border-radius:16px;grid-template-columns:none;
  }
  .metric{flex:0 0 76%;scroll-snap-align:start;border-right:1px solid var(--line);border-bottom:0}
  .metric:nth-child(1),.metric:nth-child(2){border-bottom:0}
  .metric-num{font-size:34px}
  .matrix{grid-template-columns:1fr}
  .svc--main{grid-column:span 1}
  .news-grid{grid-template-columns:1fr}
  .cat-grid{grid-template-columns:1fr}
  .cat-card{min-height:240px}
  .cmp-item{padding:20px}
  .cmp-line{grid-template-columns:56px 1fr 70px;gap:10px}
  .cmp-diff{font-size:20px}
  .contact-form,.contact-aside{padding:26px}
  .form-row{grid-template-columns:1fr;gap:0}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px}
  .footer-bottom{justify-content:flex-start}
}
@media (max-width:520px){
  .hero-inner{padding:44px 0 60px;gap:34px}
  .hero h1{font-size:25px}
  .btn{height:44px;padding:0 18px;font-size:14px}
  .metric-num{font-size:30px}
  .metric{flex:0 0 84%}
}

/* roulang page: article */
:root{
  --brand:#C2189B;
  --brand-dark:#A5127F;
  --brand-soft:rgba(194,24,155,.10);
  --accent:#17C6D6;
  --ink:#0B0716;
  --ink-soft:#16122A;
  --paper:#F6F4FB;
  --white:#FFFFFF;
  --text:#14101F;
  --muted:#6B6580;
  --line:rgba(20,16,31,.08);
  --line-dark:rgba(255,255,255,.10);
  --ok:#1FD8A4;
  --danger:#FF6B5E;
  --warn:#FFC53D;
  --radius-sm:12px;
  --radius-md:16px;
  --radius-lg:20px;
  --shadow-1:0 1px 2px rgba(11,7,22,.06);
  --shadow-2:0 12px 28px rgba(11,7,22,.12);
  --mono:ui-monospace,"JetBrains Mono","SFMono-Regular",Menlo,Consolas,monospace;
  --max:1240px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
h1,h2,h3,h4{line-height:1.3;margin:0;font-weight:700;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-sm);
  border:1.5px solid transparent;font-size:15px;font-weight:600;
  cursor:pointer;transition:all .2s ease;white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(194,24,155,.22);}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:0 10px 22px rgba(194,24,155,.28);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:var(--brand-soft);transform:translateY(-1px);}
.btn-light{background:rgba(255,255,255,.10);color:#fff;border-color:rgba(255,255,255,.26);}
.btn-light:hover{background:rgba(255,255,255,.18);transform:translateY(-1px);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px;}
.btn-block{width:100%;}

/* ---------- 头部 / 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(11,7,22,.92);
  border-bottom:1px solid var(--line-dark);
  transition:background .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{background:rgba(11,7,22,.97);box-shadow:0 8px 24px rgba(11,7,22,.28);}
.topbar-inner{display:flex;align-items:center;gap:20px;height:60px;}
.brand{display:flex;align-items:center;gap:10px;flex:none;}
.brand-mark{
  width:30px;height:30px;border-radius:9px;flex:none;
  background:linear-gradient(135deg,var(--brand),var(--accent));
  position:relative;
}
.brand-mark::after{
  content:"";position:absolute;inset:9px 9px auto auto;width:9px;height:9px;
  border-radius:3px;background:#fff;opacity:.9;
}
.brand-text{font-size:21px;font-weight:800;color:#fff;letter-spacing:.4px;white-space:nowrap;}
.hotwords{display:flex;align-items:center;gap:8px;flex:1;min-width:0;overflow:hidden;}
.hot-pill{
  font-size:12px;line-height:24px;height:24px;padding:0 12px;border-radius:999px;
  background:var(--brand-soft);color:#F5C9EC;white-space:nowrap;transition:all .18s ease;
}
.hot-pill:hover{background:rgba(194,24,155,.26);color:#fff;}
.topbar-actions{display:flex;align-items:center;gap:12px;flex:none;}
.search-wrap{display:flex;align-items:center;gap:8px;}
.icon-btn{
  width:38px;height:38px;border-radius:999px;border:1px solid var(--line-dark);
  background:rgba(255,255,255,.04);color:#E7E3F2;cursor:pointer;
  display:flex;align-items:center;justify-content:center;transition:all .18s ease;
}
.icon-btn:hover{background:rgba(255,255,255,.12);color:#fff;}
.search-input{
  width:0;opacity:0;height:38px;border-radius:999px;padding:0;border:1.5px solid transparent;
  background:rgba(255,255,255,.06);color:#fff;transition:all .25s ease;
}
.search-wrap.is-open .search-input{width:240px;opacity:1;padding:0 16px;border-color:var(--brand);}
.search-input::placeholder{color:rgba(255,255,255,.45);}
.burger{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line-dark);background:rgba(255,255,255,.04);cursor:pointer;
  align-items:center;justify-content:center;
}
.burger span{display:block;width:18px;height:2px;background:#fff;position:relative;}
.burger span::before,.burger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:#fff;
}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}
.channelbar{border-top:1px solid rgba(255,255,255,.06);}
.channelbar-inner{display:flex;align-items:center;gap:26px;height:46px;overflow-x:auto;}
.channel{
  font-size:14px;color:rgba(255,255,255,.72);white-space:nowrap;
  padding:12px 0;border-bottom:2px solid transparent;transition:all .18s ease;
}
.channel:hover{color:#fff;border-bottom-color:rgba(194,24,155,.55);}
.channel.is-active{color:#fff;font-weight:700;border-bottom-color:var(--brand);}

/* ---------- 抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,7,22,.6);opacity:0;visibility:hidden;
  transition:all .25s ease;z-index:80;
}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:82vw;max-width:360px;
  background:var(--ink-soft);z-index:90;transform:translateX(100%);
  transition:transform .28s ease;padding:20px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line-dark);
  background:transparent;color:#fff;cursor:pointer;
}
.drawer h4{color:#fff;font-size:14px;margin:22px 0 10px;color:rgba(255,255,255,.5);font-weight:600;}
.drawer a{display:block;padding:12px 0;color:rgba(255,255,255,.85);font-size:15px;border-bottom:1px solid rgba(255,255,255,.06);}
.drawer a:hover{color:var(--brand);}
.drawer .drawer-search{width:100%;height:44px;border-radius:999px;padding:0 16px;background:rgba(255,255,255,.06);border:1px solid var(--line-dark);color:#fff;margin-top:8px;}
.drawer .btn{margin-top:18px;}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;color:#fff;
  background-color:var(--ink);
  background-image:radial-gradient(600px 300px at 12% 0%,rgba(194,24,155,.30),transparent 70%),
                   url("/assets/images/backpic/back-1.webp");
  background-size:cover,cover;
  background-position:center,center;
  padding:52px 0 64px;
}
.article-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,7,22,.86),rgba(11,7,22,.94));
}
.article-hero .container{position:relative;z-index:2;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.58);}
.breadcrumb a{color:rgba(255,255,255,.72);transition:color .18s ease;}
.breadcrumb a:hover{color:#fff;}
.breadcrumb .sep{opacity:.45;}
.breadcrumb .current{color:#fff;max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-hero h1{
  font-size:38px;font-weight:800;margin:20px 0 0;letter-spacing:-.2px;max-width:900px;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:22px;font-size:13px;color:rgba(255,255,255,.62);}
.pill{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:600;
}
.pill-brand{background:var(--brand-soft);color:#F7C7EE;border:1px solid rgba(194,24,155,.45);}
.pill-accent{background:rgba(23,198,214,.14);color:#9CEBF2;border:1px solid rgba(23,198,214,.36);}
.meta-dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.35);}

/* ---------- 正文布局 ---------- */
.section{padding:56px 0;}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:32px;align-items:start;}
.article-main{
  background:var(--white);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);padding:40px 44px 44px;
}
.article-body{max-width:800px;margin:0 auto;font-size:16px;line-height:1.85;color:var(--text);}
.article-body p{margin:0 0 1.2em;}
.article-body h2{
  font-size:26px;margin:2em 0 .8em;padding-left:14px;position:relative;font-weight:800;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;
  background:linear-gradient(180deg,var(--brand),var(--accent));
}
.article-body h3{font-size:19px;margin:1.7em 0 .6em;color:var(--brand);font-weight:600;}
.article-body blockquote{
  margin:1.4em 0;padding:16px 20px;border-left:3px solid var(--brand);
  background:rgba(194,24,155,.05);border-radius:0 12px 12px 0;color:#3B3550;
}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:24px;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin:.4em 0;}
.article-body ul li::marker{color:var(--brand);}
.article-body ol li::marker{color:var(--brand);font-weight:700;font-family:var(--mono);}
.article-body img{border-radius:12px;margin:1.4em 0;}
.article-body figure{margin:1.4em 0;}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:8px;}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(194,24,155,.35);}
.article-body a:hover{border-bottom-color:var(--brand);}
.article-body code{
  font-family:var(--mono);font-size:14px;background:rgba(20,16,31,.06);
  padding:2px 6px;border-radius:6px;
}
.article-body pre{
  background:var(--ink);color:#EDEBF5;border-radius:12px;padding:18px 20px;
  overflow-x:auto;margin:1.4em 0;font-family:var(--mono);font-size:14px;line-height:1.7;
}
.article-body pre code{background:none;padding:0;color:inherit;}
.article-body table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:14.5px;}
.article-body th{
  background:rgba(194,24,155,.08);text-align:left;font-weight:700;
  padding:12px 14px;border:1px solid var(--line);
}
.article-body td{padding:12px 14px;border:1px solid var(--line);}
.article-body tbody tr:nth-child(even){background:rgba(20,16,31,.025);}
.article-body hr{border:none;border-top:1px solid var(--line);margin:2em 0;}

.empty-state{
  text-align:center;padding:56px 20px;border:1px dashed var(--line);border-radius:var(--radius-md);
}
.empty-icon{
  width:56px;height:56px;border-radius:16px;margin:0 auto 18px;
  background:var(--brand-soft);display:flex;align-items:center;justify-content:center;
  font-size:24px;color:var(--brand);font-weight:700;
}
.empty-state h3{font-size:20px;margin-bottom:10px;}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:20px;}

/* ---------- 侧栏 ---------- */
.article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--white);border-radius:var(--radius-md);padding:22px;
  box-shadow:var(--shadow-1);
}
.side-card h3{font-size:16px;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-card h3::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--brand);}
.toc-list{border-left:1px solid var(--line);padding-left:14px;display:flex;flex-direction:column;gap:2px;}
.toc-list a{font-size:14px;color:var(--muted);padding:6px 0;transition:all .18s ease;}
.toc-list a:hover{color:var(--brand);padding-left:6px;}
.side-list li a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 0;font-size:14px;color:var(--text);border-bottom:1px solid var(--line);
  transition:all .18s ease;
}
.side-list li:last-child a{border-bottom:none;}
.side-list li a:hover{color:var(--brand);background:var(--paper);padding-left:8px;border-radius:8px;}
.side-list .arrow{color:var(--brand);font-size:13px;}
.side-cta{
  background:linear-gradient(140deg,var(--ink),#221A3D);color:#fff;border-radius:var(--radius-md);
  padding:24px;box-shadow:var(--shadow-1);
}
.side-cta h3{font-size:17px;color:#fff;margin-bottom:10px;}
.side-cta p{font-size:13.5px;color:rgba(255,255,255,.68);margin-bottom:16px;line-height:1.7;}

/* ---------- 文末模块 ---------- */
.after-article{max-width:800px;margin:40px auto 0;}
.author-box{
  display:flex;align-items:center;gap:16px;padding:20px;border-radius:var(--radius-md);
  background:var(--paper);border:1px solid var(--line);
}
.author-avatar{
  width:48px;height:48px;border-radius:14px;flex:none;
  background:linear-gradient(135deg,var(--brand),var(--accent));
  display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:16px;
}
.author-box strong{display:block;font-size:15px;margin-bottom:2px;}
.author-box span{font-size:13px;color:var(--muted);}
.inline-cta{
  margin-top:24px;padding:28px;border-radius:var(--radius-md);color:#fff;
  background:linear-gradient(120deg,rgba(194,24,155,.92),rgba(23,198,214,.72));
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;
}
.inline-cta h3{font-size:19px;color:#fff;margin-bottom:6px;}
.inline-cta p{font-size:14px;color:rgba(255,255,255,.86);}
.section-head{margin-bottom:26px;}
.section-head h2{font-size:26px;}
.section-head p{color:var(--muted);font-size:15px;margin-top:8px;}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{
  background:var(--white);border-radius:var(--radius-md);overflow:hidden;
  box-shadow:var(--shadow-1);border:1px solid var(--line);
  transition:transform .2s ease,box-shadow .2s ease;display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.card-cover{position:relative;aspect-ratio:16/9;background:var(--paper);overflow:hidden;}
.card-cover img{width:100%;height:100%;object-fit:cover;}
.card-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-title{font-size:16px;font-weight:700;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card:hover .card-title{color:var(--brand);}
.card-desc{font-size:13.5px;color:var(--muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--muted);}
.back-row{margin-top:32px;display:flex;justify-content:center;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:760px;margin:0 auto;}
.faq-item{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-sm);
  margin-bottom:12px;overflow:hidden;transition:box-shadow .2s ease;
}
.faq-item.is-open{box-shadow:var(--shadow-1);border-left:3px solid var(--brand);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 20px;background:none;border:none;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;color:var(--text);
}
.faq-q:hover{color:var(--brand);}
.faq-icon{
  flex:none;width:22px;height:22px;border-radius:50%;background:var(--brand-soft);
  color:var(--brand);display:flex;align-items:center;justify-content:center;
  font-size:15px;line-height:1;transition:transform .18s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;}
.faq-a p{padding:0 20px 18px;font-size:15px;color:#413B55;line-height:1.8;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#fff;padding:64px 0 24px;margin-top:24px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-about{font-size:13.5px;color:rgba(255,255,255,.6);line-height:1.85;max-width:340px;}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:16px;font-weight:700;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col li{font-size:14px;color:rgba(255,255,255,.66);}
.footer-col li a{transition:color .18s ease;}
.footer-col li a:hover{color:var(--brand);}
.footer-contact .mark{
  display:inline-block;font-family:var(--mono);font-size:11px;letter-spacing:.06em;
  color:var(--accent);margin-right:8px;
}
.footer-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid var(--line-dark);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.fb-left{display:flex;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.5);}
.to-top{
  width:40px;height:40px;border-radius:50%;background:var(--brand-soft);color:#F7C7EE;
  display:flex;align-items:center;justify-content:center;font-size:16px;transition:all .2s ease;
}
.to-top:hover{background:var(--brand);color:#fff;transform:translateY(-2px);}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .article-hero h1{font-size:34px;}
}
@media (max-width:1023px){
  .hotwords{display:none;}
  .article-layout{grid-template-columns:minmax(0,1fr);}
  .article-side{position:static;}
  .article-main{padding:30px 26px 34px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .topbar-inner{height:56px;gap:12px;}
  .brand-text{font-size:19px;}
  .burger{display:flex;}
  .search-wrap{display:none;}
  .channelbar-inner{gap:20px;height:44px;}
  .btn-sm{display:none;}
  .article-hero{padding:34px 0 44px;}
  .article-hero h1{font-size:27px;margin-top:16px;}
  .breadcrumb .current{max-width:200px;}
  .section{padding:40px 0;}
  .article-body h2{font-size:22px;}
  .article-body h3{font-size:17px;}
  .related-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .inline-cta{flex-direction:column;align-items:flex-start;}
}
@media (max-width:519px){
  .article-hero h1{font-size:24px;}
  .article-main{padding:24px 18px 28px;}
  .author-box{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category1 */
:root{
  --brand:#C2189B;
  --brand-deep:#A5137F;
  --brand-soft:rgba(194,24,155,.10);
  --cyan:#17C6D6;
  --ink:#0B0716;
  --surface:#16122A;
  --paper:#F6F4FB;
  --text:#14101F;
  --muted:#6B6580;
  --line:rgba(20,16,31,.08);
  --line-strong:rgba(20,16,31,.14);
  --ok:#1FD8A4;
  --warn:#FFC53D;
  --white:#ffffff;
  --radius-xs:10px;
  --radius-sm:12px;
  --radius:16px;
  --radius-lg:20px;
  --shadow-1:0 1px 2px rgba(11,7,22,.06);
  --shadow-2:0 12px 28px rgba(11,7,22,.12);
  --gap:24px;
  --font:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:ui-monospace,"JetBrains Mono","SFMono-Regular",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0;padding:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-alt{background:var(--white)}
.section-dark{background:var(--ink);color:#EDEAF6}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.section-title{font-size:28px;font-weight:800;line-height:1.3;letter-spacing:-.01em;position:relative;padding-left:16px}
.section-title::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--brand)}
.section-sub{margin-top:12px;color:var(--muted);font-size:15px;max-width:720px;padding-left:16px}
.section-dark .section-sub{color:rgba(237,234,246,.68)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:700;white-space:nowrap;
  transition:transform .18s ease,background-color .18s ease,box-shadow .18s ease,color .18s ease;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(194,24,155,.24)}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0);box-shadow:0 2px 8px rgba(194,24,155,.2)}
.btn-ghost{border:1.5px solid var(--brand);color:var(--brand);background:transparent}
.btn-ghost:hover{background:var(--brand-soft);transform:translateY(-1px)}
.btn-light{border:1.5px solid rgba(255,255,255,.32);color:#fff}
.btn-light:hover{background:rgba(255,255,255,.1);transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:10px}
.btn:disabled,.btn.is-disabled{opacity:.6;filter:saturate(.6);cursor:not-allowed;transform:none}

/* ============ 徽章 / 胶囊 ============ */
.pill{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;
  border-radius:999px;font-size:12px;font-weight:600;line-height:1;
  background:var(--brand-soft);color:var(--brand);white-space:nowrap;
}
.pill-cyan{background:rgba(23,198,214,.12);color:#0E8E9B}
.pill-warn{background:rgba(255,197,61,.18);color:#8A6100}
.pill-ghost{background:rgba(255,255,255,.1);color:#fff}

/* ============ 头部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  background:transparent;
  transition:background-color .25s ease,box-shadow .25s ease,border-color .25s ease;
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:rgba(11,7,22,.96);
  border-bottom:1px solid rgba(255,255,255,.08);
  box-shadow:0 8px 24px rgba(11,7,22,.28);
}
.topbar-inner{display:flex;align-items:center;gap:24px;height:72px;transition:height .25s ease}
.site-header.is-scrolled .topbar-inner{height:56px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:30px;height:30px;border-radius:9px;flex-shrink:0;
  background:linear-gradient(135deg,var(--brand) 0%,#7A2BD0 100%);
  position:relative;transform:skewX(-8deg);
}
.brand-mark::after{content:"";position:absolute;inset:8px;border-radius:4px;background:rgba(255,255,255,.85)}
.brand-text{font-size:21px;font-weight:800;color:#fff;letter-spacing:-.01em;white-space:nowrap}
.hotwords{display:flex;align-items:center;gap:10px;flex:1;overflow:hidden}
.hot-pill{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:rgba(194,24,155,.16);color:#F0C6E6;font-size:12px;font-weight:600;white-space:nowrap;
  transition:background-color .18s ease,color .18s ease;
}
.hot-pill:hover{background:rgba(194,24,155,.34);color:#fff}
.site-header.is-scrolled .hotwords{display:none}
.topbar-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.search-wrap{position:relative;display:flex;align-items:center}
.icon-btn{
  width:40px;height:40px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;
  color:#fff;background:rgba(255,255,255,.08);transition:background-color .18s ease;
}
.icon-btn:hover{background:rgba(255,255,255,.18)}
.search-input{
  width:0;opacity:0;height:40px;padding:0;margin-left:0;
  border-radius:999px;border:1.5px solid transparent;background:rgba(255,255,255,.08);color:#fff;
  font-size:14px;transition:width .25s ease,opacity .2s ease,padding .25s ease,border-color .2s ease;
}
.search-input::placeholder{color:rgba(255,255,255,.5)}
.search-wrap.is-open .search-input{width:240px;opacity:1;padding:0 16px;margin-left:8px}
.search-wrap.is-open .search-input:focus{outline:none;border-color:var(--brand)}
.burger{
  display:none;width:44px;height:44px;border-radius:12px;background:rgba(255,255,255,.08);
  position:relative;
}
.burger span,.burger span::before,.burger span::after{
  position:absolute;left:50%;width:18px;height:2px;border-radius:2px;background:#fff;transform:translateX(-50%);
}
.burger span{top:21px}
.burger span::before{content:"";top:-6px;left:0;transform:none}
.burger span::after{content:"";top:6px;left:0;transform:none}
.channelbar{border-top:1px solid rgba(255,255,255,.07);transition:border-color .25s ease}
.channelbar-inner{display:flex;align-items:center;gap:28px;height:44px;overflow-x:auto;scrollbar-width:none}
.channelbar-inner::-webkit-scrollbar{display:none}
.channel{
  position:relative;font-size:14px;font-weight:500;color:rgba(255,255,255,.72);
  line-height:44px;white-space:nowrap;padding:0 2px;
}
.channel::after{content:"";position:absolute;left:0;right:0;bottom:6px;height:2px;border-radius:2px;background:var(--brand);transform:scaleX(0);transition:transform .18s ease}
.channel:hover{color:#fff}
.channel:hover::after{transform:scaleX(1)}
.channel.is-active{color:#fff;font-weight:700}
.channel.is-active::after{transform:scaleX(1)}

/* ============ 抽屉 ============ */
.drawer-overlay{position:fixed;inset:0;background:rgba(11,7,22,.6);opacity:0;visibility:hidden;transition:opacity .28s ease,visibility .28s ease;z-index:180}
.drawer-overlay.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:82vw;max-width:340px;z-index:190;
  background:var(--ink);color:#EDEAF6;padding:20px;
  transform:translateX(102%);transition:transform .28s ease;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-close{width:44px;height:44px;border-radius:12px;background:rgba(255,255,255,.08);color:#fff;font-size:20px;line-height:1}
.drawer-search{width:100%;height:44px;border-radius:999px;border:1.5px solid rgba(255,255,255,.16);background:rgba(255,255,255,.06);color:#fff;padding:0 18px;font-size:14px;margin-bottom:20px}
.drawer-search:focus{outline:none;border-color:var(--brand)}
.drawer-title{font-size:12px;letter-spacing:.14em;color:rgba(237,234,246,.5);margin:18px 0 10px;font-weight:700;font-family:var(--mono)}
.drawer-nav a{display:block;padding:12px 0;font-size:16px;font-weight:600;color:rgba(237,234,246,.86);border-bottom:1px solid rgba(255,255,255,.07)}
.drawer-nav a.is-active{color:#fff;box-shadow:inset 3px 0 0 var(--brand);padding-left:12px}
.drawer-hot{display:flex;flex-wrap:wrap;gap:10px;margin-top:6px}
.drawer-cta{display:block;width:100%;margin-top:26px}

/* ============ 内页首屏 ============ */
.page-hero{position:relative;background:var(--ink);color:#EDEAF6;overflow:hidden;padding:158px 0 78px}
.page-hero-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(180deg,rgba(11,7,22,.72) 0%,rgba(11,7,22,.94) 78%,var(--ink) 100%),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  opacity:.9;
}
.page-hero-glow{
  position:absolute;top:-120px;left:-80px;width:520px;height:520px;border-radius:50%;
  background:rgba(194,24,155,.12);filter:blur(120px);pointer-events:none;
}
.page-hero .container{position:relative;z-index:2}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(237,234,246,.6);margin-bottom:20px;flex-wrap:wrap}
.crumb a:hover{color:#fff}
.crumb .sep{opacity:.45}
.crumb .current{color:rgba(237,234,246,.92);font-weight:600}
.hero-badge{display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;border-radius:999px;background:rgba(23,198,214,.14);color:#7FE6EF;font-size:12px;font-weight:700;letter-spacing:.06em;margin-bottom:18px}
.page-hero h1{font-size:40px;line-height:1.3;font-weight:800;letter-spacing:-.015em;max-width:820px}
.hero-lead{margin-top:20px;max-width:760px;font-size:16px;line-height:1.9;color:rgba(237,234,246,.78)}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}

/* ============ 大卡网格 ============ */
.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--gap)}
.feature-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  display:flex;flex-direction:column;
}
.feature-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(194,24,155,.22)}
.card-cover{position:relative;aspect-ratio:16/9;background:var(--paper);overflow:hidden}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.feature-card:hover .card-cover img{transform:scale(1.03)}
.card-cover .cover-tag{position:absolute;left:14px;top:14px}
.card-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-title{font-size:20px;font-weight:700;line-height:1.35}
.card-desc{font-size:15px;color:var(--muted);line-height:1.8}
.card-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:8px}
.card-link{margin-top:14px;display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--brand)}
.card-link .arrow{transition:transform .18s ease}
.feature-card:hover .card-link .arrow{transform:translateX(4px)}
.more-row{display:flex;justify-content:center;margin-top:44px}

/* ============ 指标条 ============ */
.stat-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;border-top:1px solid rgba(255,255,255,.1);border-bottom:1px solid rgba(255,255,255,.1)}
.stat-item{padding:34px 26px;border-right:1px solid rgba(255,255,255,.1)}
.stat-item:last-child{border-right:0}
.stat-num{font-family:var(--mono);font-size:44px;font-weight:700;letter-spacing:-.02em;font-variant-numeric:tabular-nums;line-height:1.1;color:#fff}
.stat-num .unit{font-size:15px;font-weight:600;margin-left:6px;color:rgba(237,234,246,.7)}
.stat-label{margin-top:12px;font-size:14px;color:rgba(237,234,246,.72)}
.stat-bar{margin-top:16px;height:2px;border-radius:2px;background:rgba(255,255,255,.12);overflow:hidden}
.stat-bar span{display:block;height:100%;border-radius:2px;background:var(--brand)}
.stat-bar.cyan span{background:var(--cyan)}
.stat-bar.ok span{background:var(--ok)}

/* ============ 步骤 ============ */
.step-list{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--gap)}
.step-item{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:28px 24px;box-shadow:var(--shadow-1);transition:transform .2s ease,box-shadow .2s ease}
.step-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.step-num{
  width:40px;height:40px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-size:15px;font-weight:700;color:#fff;
  background:linear-gradient(135deg,var(--brand) 0%,#7A2BD0 100%);margin-bottom:18px;
}
.step-item h3{font-size:18px;font-weight:700;margin-bottom:10px}
.step-item p{font-size:14.5px;color:var(--muted);line-height:1.8}

/* ============ FAQ ============ */
.faq-wrap{max-width:760px;margin:0 auto}
.faq-item{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);margin-bottom:12px;overflow:hidden;box-shadow:var(--shadow-1)}
.faq-item[open]{border-color:rgba(194,24,155,.24);box-shadow:var(--shadow-2)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 22px;font-size:16px;font-weight:700;cursor:pointer;list-style:none;
  transition:background-color .18s ease,box-shadow .18s ease;
}
.faq-q::-webkit-details-marker{display:none}
.faq-q::after{content:"+";font-size:22px;font-weight:400;color:var(--brand);transition:transform .18s ease;line-height:1}
.faq-item[open] .faq-q{box-shadow:inset 3px 0 0 var(--brand);background:rgba(194,24,155,.04)}
.faq-item[open] .faq-q::after{transform:rotate(45deg)}
.faq-a{padding:0 22px 22px 22px;font-size:15.5px;line-height:1.85;color:var(--muted)}

/* ============ CTA 与表单 ============ */
.cta-band{background:var(--ink);color:#EDEAF6;position:relative;overflow:hidden}
.cta-band::before{
  content:"";position:absolute;right:-140px;top:-140px;width:460px;height:460px;border-radius:50%;
  background:rgba(194,24,155,.14);filter:blur(120px);
}
.cta-grid{display:grid;grid-template-columns:5fr 4fr;gap:56px;align-items:start;position:relative;z-index:2}
.cta-copy h2{font-size:28px;font-weight:800;line-height:1.35}
.cta-copy p{margin-top:16px;font-size:15.5px;line-height:1.9;color:rgba(237,234,246,.76);max-width:520px}
.trust-list{margin-top:32px;display:flex;flex-direction:column;gap:14px}
.trust-list li{display:flex;align-items:center;gap:12px;font-size:15px;color:rgba(237,234,246,.86)}
.trust-dot{width:26px;height:26px;border-radius:8px;background:rgba(23,198,214,.16);color:#7FE6EF;display:inline-flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;flex-shrink:0}
.contact-card{background:var(--white);border-radius:var(--radius-lg);padding:32px;box-shadow:0 24px 48px rgba(11,7,22,.3)}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:var(--text)}
.field input,.field textarea,.field select{
  width:100%;border:1px solid var(--line-strong);border-radius:var(--radius-xs);
  background:#FDFCFF;padding:0 14px;font-size:15px;transition:border-color .18s ease,box-shadow .18s ease;
}
.field input,.field select{height:44px}
.field textarea{padding:12px 14px;min-height:104px;resize:vertical;line-height:1.7}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(194,24,155,.14);
}
.form-note{font-size:12.5px;color:var(--muted);margin-top:12px}
.form-msg{margin-top:14px;font-size:14px;font-weight:600;color:var(--brand);display:none}
.form-msg.is-show{display:block}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:rgba(237,234,246,.72);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.footer-brand .brand-text{font-size:19px}
.footer-about{font-size:14px;line-height:1.9;color:rgba(237,234,246,.62);max-width:340px}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.footer-col ul li{margin-bottom:10px;font-size:14px}
.footer-col ul li a{color:rgba(237,234,246,.72)}
.footer-col ul li a:hover{color:var(--brand)}
.footer-contact li{display:flex;align-items:flex-start;gap:10px}
.footer-contact .mark{font-family:var(--mono);font-size:11px;font-weight:700;color:var(--cyan);letter-spacing:.08em;padding-top:4px;flex-shrink:0}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.fb-left{display:flex;gap:18px;flex-wrap:wrap;font-size:13.5px;color:rgba(237,234,246,.55)}
.to-top{
  width:40px;height:40px;border-radius:50%;background:rgba(194,24,155,.16);color:#F0C6E6;
  display:inline-flex;align-items:center;justify-content:center;font-size:16px;
  transition:background-color .18s ease,color .18s ease,transform .18s ease;
}
.to-top:hover{background:var(--brand);color:#fff;transform:translateY(-2px)}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .page-hero h1{font-size:36px}
}
@media (max-width:1023px){
  .section{padding:72px 0}
  .hotwords{display:none}
  .cta-grid{grid-template-columns:1fr;gap:40px}
  .step-list{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat-item:nth-child(2){border-right:0}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-bottom:1px solid rgba(255,255,255,.1)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .section{padding:56px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:28px}
  .section-title{font-size:22px}
  .burger{display:inline-flex;align-items:center;justify-content:center}
  .topbar-actions .btn-sm{display:none}
  .search-wrap{display:none}
  .channelbar-inner{gap:20px;height:42px}
  .channel{line-height:42px;font-size:13.5px}
  .page-hero{padding:130px 0 56px}
  .page-hero h1{font-size:28px}
  .hero-lead{font-size:15px}
  .card-grid{grid-template-columns:minmax(0,1fr)}
  .card-body{padding:20px}
  .card-title{font-size:18px}
  .stat-num{font-size:34px}
  .stat-item{padding:26px 18px}
  .step-list{grid-template-columns:minmax(0,1fr)}
  .contact-card{padding:24px}
  .cta-copy h2{font-size:22px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px}
  .footer-about{max-width:none}
}
@media (max-width:519px){
  .page-hero h1{font-size:26px}
  .hero-actions .btn{width:100%}
  .stat-strip{grid-template-columns:minmax(0,1fr)}
  .stat-item{border-right:0;border-bottom:1px solid rgba(255,255,255,.1)}
  .stat-item:last-child{border-bottom:0}
}

/* roulang page: category3 */
:root{
  --brand:#C2189B;
  --brand-deep:#A5127F;
  --brand-10:rgba(194,24,155,.10);
  --brand-08:rgba(194,24,155,.08);
  --cyan:#17C6D6;
  --ink:#14101F;
  --muted:#6B6580;
  --line:rgba(20,16,31,.08);
  --line-strong:rgba(20,16,31,.16);
  --dark:#0B0716;
  --dark-2:#16122A;
  --light:#F6F4FB;
  --white:#ffffff;
  --pos:#1FD8A4;
  --neg:#FF6B5E;
  --warn:#FFC53D;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,7,22,.06);
  --sh-2:0 12px 28px rgba(11,7,22,.12);
  --sp-section:96px;
  --maxw:1240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--white);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease;}
a:hover{color:var(--brand);}
button,input,select,textarea{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:800;letter-spacing:-.01em;}
p{margin:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.mono{font-family:ui-monospace,"JetBrains Mono","SFMono-Regular",Menlo,Consolas,monospace;font-variant-numeric:tabular-nums;}

/* ---------- 通用按钮 / 徽章 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border:0;border-radius:12px;
  font-size:15px;font-weight:700;cursor:pointer;white-space:nowrap;
  transition:transform .18s ease,background-color .18s ease,box-shadow .18s ease,color .18s ease;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(194,24,155,.24);}
.btn-primary:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(194,24,155,.3);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--brand);border:1.5px solid var(--brand);}
.btn-ghost:hover{background:var(--brand-08);color:var(--brand-deep);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px;}
.btn:disabled,.btn[disabled]{opacity:.6;filter:saturate(.6);cursor:not-allowed;}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);font-size:12px;font-weight:600;line-height:1;}
.badge-brand{background:var(--brand-10);color:var(--brand);}
.badge-cyan{background:rgba(23,198,214,.12);color:#0E96A4;}
.badge-pos{background:rgba(31,216,164,.14);color:#0B8C69;}
.badge-warn{background:rgba(255,197,61,.2);color:#8A6100;}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:120;background:var(--dark);transition:box-shadow .25s ease,background-color .25s ease;}
.site-header::after{content:"";display:block;height:1px;background:rgba(255,255,255,.08);}
.site-header.is-stuck{background:rgba(11,7,22,.96);box-shadow:0 8px 24px rgba(11,7,22,.28);}
.topbar-inner{display:flex;align-items:center;gap:20px;height:64px;transition:height .25s ease;}
.site-header.is-stuck .topbar-inner{height:56px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none;}
.brand-mark{
  width:26px;height:26px;border-radius:8px;flex:none;
  background:linear-gradient(135deg,var(--brand) 0%,#8A12A8 55%,var(--cyan) 100%);
  transform:rotate(-8deg);
  box-shadow:0 4px 12px rgba(194,24,155,.35);
}
.brand-text{font-size:21px;font-weight:800;color:#fff;letter-spacing:0;white-space:nowrap;}
.brand:hover .brand-text{color:#fff;}
.hotwords{display:flex;align-items:center;gap:8px;flex:1;min-width:0;overflow:hidden;transition:opacity .25s ease,height .25s ease;}
.site-header.is-stuck .hotwords{opacity:0;height:0;pointer-events:none;}
.hot-pill{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;color:#F2C9E6;background:rgba(194,24,155,.18);white-space:nowrap;
}
.hot-pill:hover{background:rgba(194,24,155,.34);color:#fff;}
.topbar-actions{display:flex;align-items:center;gap:10px;flex:none;margin-left:auto;}
.search-wrap{display:flex;align-items:center;gap:6px;}
.icon-btn{
  width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(255,255,255,.16);border-radius:var(--r-pill);
  background:transparent;color:#D9D4E6;cursor:pointer;transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.icon-btn:hover{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.3);}
.search-input{
  width:0;opacity:0;height:38px;padding:0;border-radius:var(--r-pill);
  border:1.5px solid transparent;background:rgba(255,255,255,.08);color:#fff;
  transition:width .22s ease,opacity .22s ease,padding .22s ease,border-color .18s ease;
}
.search-input::placeholder{color:rgba(255,255,255,.45);}
.search-wrap.open .search-input{width:240px;opacity:1;padding:0 16px;border-color:rgba(255,255,255,.2);}
.search-wrap.open .search-input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 2px rgba(194,24,155,.35);}
.burger{
  display:none;width:44px;height:44px;border:0;background:transparent;cursor:pointer;position:relative;
}
.burger span,.burger span::before,.burger span::after{
  position:absolute;left:11px;width:22px;height:2px;background:#fff;border-radius:2px;transition:transform .2s ease,opacity .2s ease;
}
.burger span{top:21px;}
.burger span::before{content:"";top:-7px;left:0;}
.burger span::after{content:"";top:7px;left:0;}
.burger.active span{transform:rotate(45deg);}
.burger.active span::before{transform:translateY(7px) rotate(-90deg);}
.burger.active span::after{opacity:0;}

.channelbar{background:rgba(255,255,255,.03);}
.channelbar-inner{display:flex;align-items:center;gap:26px;height:46px;overflow-x:auto;scrollbar-width:none;}
.channelbar-inner::-webkit-scrollbar{display:none;}
.channel{
  position:relative;flex:none;font-size:15px;color:#BDB6CC;font-weight:500;padding:0 2px;line-height:46px;white-space:nowrap;
}
.channel::after{
  content:"";position:absolute;left:0;right:0;bottom:6px;height:2px;background:var(--brand);
  transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.channel:hover{color:#fff;}
.channel:hover::after{transform:scaleX(1);}
.channel.is-active{color:#fff;font-weight:700;}
.channel.is-active::after{transform:scaleX(1);}

/* ---------- 移动抽屉 ---------- */
.mask{position:fixed;inset:0;background:rgba(11,7,22,.6);opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:130;}
.mask.open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:82vw;max-width:360px;background:var(--dark);
  transform:translateX(100%);transition:transform .28s cubic-bezier(.4,0,.2,1);z-index:140;
  padding:22px;overflow-y:auto;
}
.drawer.open{transform:translateX(0);}
.drawer h5{margin:20px 0 10px;font-size:12px;letter-spacing:.12em;color:rgba(255,255,255,.42);font-weight:700;text-transform:uppercase;}
.drawer .d-link{display:block;padding:12px 0;font-size:16px;color:#E6E2F0;border-bottom:1px solid rgba(255,255,255,.07);}
.drawer .d-link.is-active{color:var(--brand);font-weight:700;}
.drawer .d-search{width:100%;height:44px;margin-top:12px;padding:0 16px;border-radius:var(--r-pill);border:1.5px solid rgba(255,255,255,.16);background:rgba(255,255,255,.06);color:#fff;}
.drawer .d-search:focus{outline:none;border-color:var(--brand);}
.drawer .d-cta{width:100%;margin-top:18px;}
.drawer .d-close{position:absolute;top:16px;right:16px;width:40px;height:40px;border-radius:50%;border:1px solid rgba(255,255,255,.16);background:transparent;color:#fff;cursor:pointer;font-size:18px;}

/* ---------- 面包屑 / Hero ---------- */
.crumb{font-size:13px;color:var(--muted);padding:18px 0 0;display:flex;gap:8px;flex-wrap:wrap;}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:var(--line-strong);}
.crumb .cur{color:var(--ink);font-weight:600;}

.hero{position:relative;background:var(--light);padding:36px 0 72px;overflow:hidden;}
.hero::before{
  content:"";position:absolute;top:-180px;right:-120px;width:620px;height:620px;border-radius:50%;
  background:radial-gradient(circle,rgba(194,24,155,.12) 0%,rgba(194,24,155,0) 62%);
  filter:blur(120px);pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 12px;border-radius:var(--r-pill);background:var(--white);border:1px solid var(--line);font-size:12px;font-weight:700;color:var(--brand);margin-bottom:18px;}
.hero h1{font-size:40px;line-height:1.25;margin-bottom:18px;}
.hero h1 em{font-style:normal;color:var(--brand);}
.hero-lead{font-size:17px;color:#453F58;max-width:560px;margin-bottom:26px;}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:26px;}
.hero-facts{display:flex;gap:10px;flex-wrap:wrap;}
.hero-media{position:relative;}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--sh-2);background:var(--white);}
.float-card{
  position:absolute;background:var(--white);border-radius:var(--r-md);box-shadow:var(--sh-2);
  padding:14px 18px;border:1px solid var(--line);
}
.float-card .fc-num{font-size:26px;font-weight:800;line-height:1.1;}
.float-card .fc-num span{font-size:13px;font-weight:600;color:var(--muted);margin-left:2px;}
.float-card .fc-label{font-size:12px;color:var(--muted);margin-top:2px;}
.fc-1{left:-16px;bottom:34px;}
.fc-2{right:-12px;top:28px;}
.fc-2 .fc-num{color:var(--cyan);}
.fc-1 .fc-num{color:var(--brand);}

/* ---------- 板块基础 ---------- */
.section{padding:var(--sp-section) 0;}
.section.alt{background:var(--light);}
.section.dark{background:var(--dark);color:#fff;}
.sec-head{max-width:760px;margin-bottom:44px;}
.sec-head .kicker{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.1em;color:var(--brand);margin-bottom:10px;}
.sec-head h2{font-size:28px;margin-bottom:12px;}
.sec-head p{color:var(--muted);font-size:16px;}
.section.dark .sec-head p{color:#A79FBA;}
.section.dark .sec-head h2{color:#fff;}

/* ---------- 指标条 ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--white);}
.stat{padding:28px 24px;border-right:1px solid var(--line);}
.stat:last-child{border-right:0;}
.stat .s-num{font-size:42px;font-weight:800;line-height:1.1;letter-spacing:-.02em;}
.stat .s-num small{font-size:14px;font-weight:600;color:var(--muted);margin-left:3px;}
.stat .s-label{font-size:14px;color:var(--ink);font-weight:600;margin-top:8px;}
.stat .s-sub{font-size:13px;color:var(--muted);margin-top:2px;}
.stat .s-bar{height:2px;background:var(--line);border-radius:2px;margin-top:14px;overflow:hidden;}
.stat .s-bar i{display:block;height:100%;background:var(--brand);border-radius:2px;}
.stat:nth-child(2) .s-bar i{background:var(--cyan);}
.stat:nth-child(3) .s-bar i{background:var(--pos);}
.stat:nth-child(4) .s-bar i{background:#FFC53D;}

/* ---------- 编号时间轴 ---------- */
.timeline{border-top:1px solid var(--line);}
.tl-item{display:grid;grid-template-columns:76px 1fr;gap:20px;padding:26px 0;border-bottom:1px solid var(--line);transition:background-color .2s ease;}
.tl-item:hover{background:rgba(246,244,251,.75);}
.tl-num{
  width:52px;height:52px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:var(--brand-10);color:var(--brand);font-weight:800;font-size:16px;
  font-family:ui-monospace,"JetBrains Mono",monospace;
}
.tl-body h3{font-size:20px;margin-bottom:8px;}
.tl-body p{color:var(--muted);font-size:15.5px;max-width:840px;}
.tl-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px;}

/* ---------- 双列对照 ---------- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.cmp-col{background:var(--white);border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease;}
.cmp-col:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.cmp-col.hot{border-color:rgba(194,24,155,.32);box-shadow:0 10px 26px rgba(194,24,155,.12);}
.cmp-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:8px;}
.cmp-head h3{font-size:20px;}
.cmp-note{font-size:14px;color:var(--muted);margin-bottom:22px;}
.cmp-row{margin-bottom:18px;}
.cmp-row:last-child{margin-bottom:0;}
.cmp-row .cr-top{display:flex;align-items:baseline;justify-content:space-between;font-size:14px;margin-bottom:8px;}
.cmp-row .cr-top b{font-size:20px;font-weight:800;}
.bar{height:8px;border-radius:6px;background:var(--light);overflow:hidden;}
.bar i{display:block;height:100%;border-radius:6px;background:var(--brand);}
.cmp-col.alt .bar i{background:var(--cyan);}
.diff-strip{
  margin-top:26px;display:flex;align-items:center;gap:18px;flex-wrap:wrap;
  background:var(--dark);color:#fff;border-radius:var(--r-md);padding:18px 24px;
}
.diff-strip .d-num{font-size:34px;font-weight:800;color:#fff;font-family:ui-monospace,"JetBrains Mono",monospace;}
.diff-strip .d-txt{font-size:14px;color:#A79FBA;}

/* ---------- 适用场景 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.scene-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-md);padding:24px;
  box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(194,24,155,.24);}
.scene-card .sc-idx{font-size:12px;font-weight:700;color:var(--cyan);letter-spacing:.08em;font-family:ui-monospace,monospace;}
.scene-card h3{font-size:18px;margin:10px 0 8px;}
.scene-card p{font-size:14.5px;color:var(--muted);}

/* ---------- 支持范围条 ---------- */
.scope{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;}
.scope img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--sh-2);}
.scope h2{font-size:28px;margin-bottom:14px;}
.scope p{color:var(--muted);margin-bottom:20px;}
.chip-list{display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:var(--r-pill);
  background:var(--light);border:1px solid var(--line);font-size:14px;color:#413A55;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.chip:hover{background:var(--brand-10);color:var(--brand);border-color:rgba(194,24,155,.28);}

/* ---------- FAQ ---------- */
.faq{max-width:800px;margin:0 auto;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:first-child{border-top:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0 20px 0;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:700;color:var(--ink);transition:color .18s ease,border-color .18s ease;
}
.faq-q:hover{color:var(--brand);}
.faq-q .pm{position:relative;flex:none;width:18px;height:18px;}
.faq-q .pm::before,.faq-q .pm::after{content:"";position:absolute;background:var(--brand);border-radius:2px;transition:transform .18s ease;}
.faq-q .pm::before{top:8px;left:0;width:18px;height:2px;}
.faq-q .pm::after{top:0;left:8px;width:2px;height:18px;}
.faq-item.open .faq-q{color:var(--brand);}
.faq-item.open .pm::after{transform:rotate(90deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease;}
.faq-a p{padding:0 0 22px;border-left:3px solid var(--brand);padding-left:16px;color:var(--muted);font-size:15.5px;}

/* ---------- CTA / 表单 ---------- */
.cta-wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;background:var(--white);border:1px solid var(--line);border-radius:var(--r-lg);padding:40px;box-shadow:var(--sh-2);}
.cta-wrap h2{font-size:28px;margin-bottom:12px;}
.cta-wrap .cta-sub{color:var(--muted);margin-bottom:24px;font-size:15.5px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field.full{grid-column:1 / -1;}
.field label{font-size:14px;font-weight:600;color:#413A55;}
.field input,.field select,.field textarea{
  width:100%;height:44px;padding:0 14px;border-radius:var(--r-sm);
  border:1px solid var(--line-strong);background:var(--white);transition:border-color .18s ease,box-shadow .18s ease;
}
.field textarea{height:112px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 2px rgba(194,24,155,.18);
}
.field .hint{font-size:12px;color:var(--muted);}
.form-actions{grid-column:1 / -1;display:flex;align-items:center;gap:16px;flex-wrap:wrap;}
.trust{border-left:1px solid var(--line);padding-left:32px;}
.trust h3{font-size:18px;margin-bottom:18px;}
.trust-item{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line);}
.trust-item:last-child{border-bottom:0;}
.trust-item .t-dot{
  flex:none;width:34px;height:34px;border-radius:10px;background:var(--brand-10);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:14px;
  font-family:ui-monospace,monospace;
}
.trust-item b{display:block;font-size:15px;margin-bottom:2px;}
.trust-item span{font-size:13.5px;color:var(--muted);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:#A79FBA;padding:72px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-text{font-size:20px;}
.footer-about{font-size:14px;line-height:1.9;color:#8E87A3;max-width:320px;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{font-size:14px;color:#A79FBA;}
.footer-col ul li a:hover{color:var(--brand);}
.footer-contact li{display:flex;align-items:center;gap:10px;font-size:14px;}
.footer-contact .mark{
  font-size:11px;font-weight:700;letter-spacing:.08em;color:#8E87A3;
  border:1px solid rgba(255,255,255,.16);border-radius:6px;padding:2px 6px;font-family:ui-monospace,monospace;
}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  border-top:1px solid rgba(255,255,255,.08);padding:22px 0;flex-wrap:wrap;
}
.fb-left{display:flex;gap:18px;font-size:13px;color:#7E7793;flex-wrap:wrap;}
.to-top{
  width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:rgba(194,24,155,.16);color:#fff;font-size:16px;
}
.to-top:hover{background:var(--brand);color:#fff;}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  :root{--sp-section:64px;}
  .hotwords{display:none;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero h1{font-size:32px;}
  .stats{grid-template-columns:repeat(2,1fr);}
  .stat:nth-child(2){border-right:0;}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--line);}
  .compare{grid-template-columns:1fr;}
  .scene-grid{grid-template-columns:repeat(2,1fr);}
  .scope{grid-template-columns:1fr;gap:28px;}
  .cta-wrap{grid-template-columns:1fr;padding:28px;}
  .trust{border-left:0;padding-left:0;border-top:1px solid var(--line);padding-top:24px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .burger{display:inline-flex;}
  .topbar-actions .btn-sm{display:none;}
  .channelbar-inner{gap:20px;}
  .hero{padding:20px 0 48px;}
  .hero h1{font-size:28px;}
  .hero-lead{font-size:15.5px;}
  .fc-1{left:8px;bottom:12px;}
  .fc-2{right:8px;top:12px;}
  .float-card{padding:10px 14px;}
  .float-card .fc-num{font-size:20px;}
  .sec-head h2{font-size:22px;}
  .stat{padding:22px 16px;}
  .stat .s-num{font-size:32px;}
  .tl-item{grid-template-columns:1fr;gap:14px;}
  .tl-num{width:44px;height:44px;font-size:14px;}
  .tl-body h3{font-size:18px;}
  .scene-grid{grid-template-columns:1fr;}
  .form-grid{grid-template-columns:1fr;}
  .cta-wrap{padding:22px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .site-footer{padding-top:52px;}
}
@media (max-width:519px){
  .search-wrap{display:none;}
  .brand-text{font-size:19px;}
  .hero-actions .btn{width:100%;}
  .diff-strip{flex-direction:column;align-items:flex-start;gap:6px;}
}

/* roulang page: category2 */
:root{
  --brand:#C2189B;
  --brand-dark:#a6137f;
  --brand-soft:rgba(194,24,155,.10);
  --cyan:#17C6D6;
  --ink:#0B0716;
  --panel:#16122A;
  --light:#F6F4FB;
  --text:#14101F;
  --muted:#6B6580;
  --line:rgba(20,16,31,.08);
  --ok:#1FD8A4;
  --warn:#FFC53D;
  --risk:#FF6B5E;
  --r-sm:12px;
  --r-md:16px;
  --r-lg:20px;
  --sh-1:0 1px 2px rgba(11,7,22,.06);
  --sh-2:0 12px 28px rgba(11,7,22,.12);
  --max:1240px;
  --mono:ui-monospace,"JetBrains Mono","SFMono-Regular",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--light);
  font-weight:400;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.container{max-width:var(--max);margin:0 auto;padding:0 24px}
.num{font-family:var(--mono);font-weight:700;font-variant-numeric:tabular-nums;letter-spacing:-.02em}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:90;
  background:rgba(11,7,22,.94);
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:background .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{
  background:rgba(11,7,22,.96);
  box-shadow:0 6px 20px rgba(11,7,22,.35);
}
.topbar-inner{
  display:flex;
  align-items:center;
  gap:20px;
  height:64px;
  transition:height .25s ease;
}
.site-header.is-scrolled .topbar-inner{height:56px}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-weight:800;
  font-size:21px;
  letter-spacing:.02em;
  white-space:nowrap;
  flex:none;
}
.brand-mark{
  width:26px;height:26px;border-radius:8px;flex:none;
  background:linear-gradient(135deg,var(--brand),var(--cyan));
  position:relative;
}
.brand-mark::after{
  content:"";
  position:absolute;
  inset:9px 8px 9px 15px;
  border-radius:2px;
  background:rgba(255,255,255,.92);
}
.brand-text{line-height:1}
.hotwords{
  display:flex;
  align-items:center;
  gap:10px;
  flex:1;
  justify-content:center;
  transition:opacity .2s ease;
}
.site-header.is-scrolled .hotwords{display:none}
.hot-pill{
  font-size:12px;
  line-height:1;
  padding:7px 12px;
  border-radius:999px;
  background:rgba(194,24,155,.22);
  color:#fff;
  white-space:nowrap;
  transition:background .2s ease,color .2s ease;
}
.hot-pill:hover{background:rgba(194,24,155,.42)}
.topbar-actions{
  display:flex;
  align-items:center;
  gap:12px;
  margin-left:auto;
  flex:none;
}
.search-wrap{
  display:flex;
  align-items:center;
  gap:8px;
  border-radius:999px;
  transition:background .2s ease;
}
.search-wrap.is-open{background:rgba(255,255,255,.06)}
.icon-btn{
  width:40px;height:40px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;
  color:rgba(255,255,255,.82);
  transition:background .2s ease,color .2s ease;
}
.icon-btn:hover{background:rgba(255,255,255,.1);color:#fff}
.search-input{
  width:0;
  opacity:0;
  padding:0;
  height:36px;
  border:1.5px solid transparent;
  border-radius:999px;
  background:rgba(255,255,255,.06);
  color:#fff;
  font-size:14px;
  transition:width .25s ease,opacity .2s ease,border-color .2s ease;
}
.search-input::placeholder{color:rgba(255,255,255,.45)}
.search-wrap.is-open .search-input{
  width:240px;
  opacity:1;
  padding:0 16px;
  margin-right:8px;
}
.search-input:focus{outline:none;border-color:var(--brand)}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--r-sm);
  font-weight:700;
  font-size:15px;
  white-space:nowrap;
  transition:background .2s ease,transform .16s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.4)}
.btn-ghost:hover{border-color:var(--brand);color:#fff;background:rgba(194,24,155,.16)}
.btn-outline{background:transparent;color:var(--brand);border:1.5px solid var(--brand)}
.btn-outline:hover{background:var(--brand-soft)}
.btn-sm{height:38px;padding:0 18px;font-size:14px;border-radius:10px}
.burger{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  position:relative;
  background:rgba(255,255,255,.08);
}
.burger span,
.burger span::before,
.burger span::after{
  position:absolute;
  left:12px;
  width:20px;height:2px;
  background:#fff;
  border-radius:2px;
  content:"";
}
.burger span{top:21px}
.burger span::before{top:-6px;left:0}
.burger span::after{top:6px;left:0}
.channelbar{
  background:rgba(255,255,255,.03);
  border-top:1px solid rgba(255,255,255,.06);
}
.channelbar-inner{
  display:flex;
  align-items:center;
  gap:28px;
  height:44px;
  overflow-x:auto;
  scrollbar-width:none;
}
.channelbar-inner::-webkit-scrollbar{display:none}
.channel{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:44px;
  font-size:14px;
  color:rgba(255,255,255,.72);
  white-space:nowrap;
  transition:color .18s ease;
}
.channel::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  background:var(--brand);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .18s ease;
}
.channel:hover{color:#fff}
.channel:hover::after{transform:scaleX(1)}
.channel.is-active{color:#fff;font-weight:700}
.channel.is-active::after{transform:scaleX(1)}

/* 移动抽屉 */
.mobile-drawer{
  position:fixed;
  top:0;right:0;
  height:100%;
  width:82vw;
  max-width:360px;
  background:var(--panel);
  z-index:120;
  padding:24px;
  overflow-y:auto;
  transform:translateX(102%);
  transition:transform .28s ease;
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(11,7,22,.6);
  z-index:110;
  opacity:0;
  visibility:hidden;
  transition:opacity .24s ease,visibility .24s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer-title{color:#fff;font-size:13px;letter-spacing:.14em;text-transform:uppercase;opacity:.6;margin:20px 0 10px}
.drawer-link{
  display:block;
  color:rgba(255,255,255,.82);
  padding:12px 0;
  border-bottom:1px solid rgba(255,255,255,.08);
  font-size:15px;
}
.drawer-link:hover{color:#fff}
.drawer-link.is-active{color:#fff;font-weight:700}
.drawer-cta{margin-top:24px;width:100%}

/* ============ Hero ============ */
.page-hero{
  position:relative;
  background:var(--ink);
  color:#fff;
  overflow:hidden;
  padding:56px 0 76px;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:radial-gradient(circle at 24% 12%,rgba(194,24,155,.12),transparent 62%),radial-gradient(circle at 88% 82%,rgba(23,198,214,.08),transparent 58%);
  pointer-events:none;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:64px 64px;
  opacity:.5;
  pointer-events:none;
}
.hero-inner{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:48px;
  align-items:center;
}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:rgba(255,255,255,.58);
  margin-bottom:20px;
}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{opacity:.5}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:24px;
  padding:0 12px;
  border-radius:999px;
  background:rgba(23,198,214,.16);
  color:#8CE9F2;
  font-size:12px;
  margin-bottom:18px;
}
.page-hero h1{
  font-size:clamp(28px,3.4vw,40px);
  line-height:1.3;
  font-weight:800;
  letter-spacing:-.01em;
}
.hero-sub{
  margin-top:18px;
  font-size:17px;
  line-height:1.85;
  color:rgba(255,255,255,.78);
  max-width:620px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-pills span{
  font-size:12px;
  padding:6px 12px;
  border-radius:999px;
  background:rgba(255,255,255,.08);
  color:rgba(255,255,255,.82);
}
.hero-figure{position:relative}
.hero-figure img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:var(--r-lg);
  border:1px solid rgba(255,255,255,.12);
}
.float-card{
  position:absolute;
  background:rgba(22,18,42,.94);
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--r-md);
  padding:14px 18px;
  backdrop-filter:blur(6px);
}
.float-card .fc-num{
  font-family:var(--mono);
  font-variant-numeric:tabular-nums;
  font-weight:700;
  font-size:24px;
  color:#fff;
  line-height:1.2;
}
.float-card .fc-label{font-size:12px;color:rgba(255,255,255,.66);margin-top:2px}
.float-a{left:-18px;bottom:26px}
.float-b{right:-12px;top:22px}
.float-b .fc-num{color:var(--ok)}

/* ============ 通用板块 ============ */
.section{padding:96px 0}
.section-alt{background:#fff}
.section-head{max-width:760px;margin-bottom:44px}
.section-head .eyebrow{
  display:inline-block;
  font-size:12px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--brand);
  font-weight:700;
  margin-bottom:12px;
}
.section-head h2{
  font-size:clamp(22px,2.4vw,28px);
  line-height:1.35;
  font-weight:800;
  padding-left:14px;
  border-left:4px solid var(--brand);
}
.section-head p{
  margin-top:14px;
  color:var(--muted);
  font-size:15px;
  line-height:1.85;
}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head.center h2{padding-left:0;border-left:0}

/* 能力横向列表 */
.cap-list{border-top:1px solid var(--line)}
.cap-row{
  display:grid;
  grid-template-columns:200px 1fr auto;
  gap:28px;
  align-items:center;
  min-height:132px;
  padding:18px 12px;
  border-bottom:1px solid var(--line);
  border-radius:var(--r-md);
  transition:background .2s ease,box-shadow .2s ease,transform .2s ease;
}
.cap-row:hover{background:#fff;box-shadow:var(--sh-1);transform:translateY(-2px)}
.cap-thumb{
  border-radius:14px;
  overflow:hidden;
  aspect-ratio:16/10;
  background:var(--light);
}
.cap-thumb img{width:100%;height:100%;object-fit:cover}
.cap-body{min-width:0}
.cap-index{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:28px;height:28px;
  border-radius:50%;
  background:var(--brand-soft);
  color:var(--brand);
  font-family:var(--mono);
  font-size:12px;
  font-weight:700;
  margin-right:10px;
}
.cap-title{
  display:inline-flex;
  align-items:center;
  font-size:20px;
  font-weight:700;
  line-height:1.4;
}
.cap-desc{
  margin-top:8px;
  color:var(--muted);
  font-size:14.5px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.cap-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.tag{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 12px;
  border-radius:999px;
  font-size:12px;
  background:var(--brand-soft);
  color:var(--brand);
}
.tag.cyan{background:rgba(23,198,214,.14);color:#0d8b98}
.tag.warm{background:rgba(255,197,61,.18);color:#8a6205}
.cap-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:700;
  color:var(--brand);
  white-space:nowrap;
  transition:transform .2s ease;
}
.cap-row:hover .cap-arrow{transform:translateX(4px)}

/* 适用场景 */
.scene-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.scene-card{
  background:#fff;
  border-radius:var(--r-md);
  padding:26px 22px;
  box-shadow:var(--sh-1);
  transition:box-shadow .2s ease,transform .2s ease;
}
.scene-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.scene-card .sc-icon{
  width:40px;height:40px;
  border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-soft);
  color:var(--brand);
  font-weight:800;
  font-family:var(--mono);
  font-size:14px;
  margin-bottom:16px;
}
.scene-card h3{font-size:17px;font-weight:700;line-height:1.5}
.scene-card p{margin-top:10px;font-size:14px;color:var(--muted);line-height:1.8}

/* 流程 */
.flow{
  display:grid;
  grid-template-columns:repeat(5,1fr);
  gap:20px;
  counter-reset:flow;
}
.flow-item{
  position:relative;
  background:#fff;
  border-radius:var(--r-md);
  padding:26px 20px;
  box-shadow:var(--sh-1);
}
.flow-item::before{
  counter-increment:flow;
  content:counter(flow,decimal-leading-zero);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;height:38px;
  border-radius:50%;
  background:var(--ink);
  color:#fff;
  font-family:var(--mono);
  font-size:13px;
  font-weight:700;
  margin-bottom:16px;
}
.flow-item h3{font-size:16px;font-weight:700}
.flow-item p{margin-top:8px;font-size:13.5px;color:var(--muted);line-height:1.8}

/* 指标 */
.metrics{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0;
  background:#fff;
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  overflow:hidden;
}
.metric{
  padding:30px 24px;
  border-right:1px solid var(--line);
}
.metric:last-child{border-right:0}
.metric .m-num{
  font-family:var(--mono);
  font-variant-numeric:tabular-nums;
  font-weight:700;
  font-size:44px;
  line-height:1.1;
  letter-spacing:-.02em;
  color:var(--text);
}
.metric .m-num small{font-size:16px;margin-left:4px;color:var(--muted);font-weight:600}
.metric .m-label{margin-top:8px;font-size:14px;color:var(--muted)}
.metric .m-track{margin-top:16px;height:2px;background:var(--line);border-radius:2px;overflow:hidden}
.metric .m-track i{display:block;height:100%;background:var(--brand);border-radius:2px}
.metric .m-badge{
  display:inline-block;
  margin-top:14px;
  font-size:12px;
  color:var(--ok);
  background:rgba(31,216,164,.12);
  border-radius:999px;
  padding:3px 10px;
}

/* 对照 */
.compare-wrap{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:24px;
}
.cmp-col{
  background:#fff;
  border-radius:var(--r-lg);
  padding:30px 26px;
  box-shadow:var(--sh-1);
}
.cmp-col.after{border:1.5px solid rgba(194,24,155,.35)}
.cmp-col h3{
  font-size:18px;
  font-weight:800;
  margin-bottom:22px;
  display:flex;
  align-items:center;
  gap:10px;
}
.cmp-col h3 .dot{width:8px;height:8px;border-radius:50%;background:var(--muted)}
.cmp-col.after h3 .dot{background:var(--brand)}
.cmp-item{padding:14px 0;border-bottom:1px dashed var(--line)}
.cmp-item:last-child{border-bottom:0}
.cmp-item .ci-head{display:flex;justify-content:space-between;font-size:13.5px;color:var(--muted)}
.cmp-item .ci-head em{font-style:normal;font-weight:700;color:var(--text)}
.cmp-track{height:6px;border-radius:6px;background:var(--light);margin-top:10px;overflow:hidden}
.cmp-track i{display:block;height:100%;border-radius:6px;background:rgba(107,101,128,.5)}
.cmp-col.after .cmp-track i{background:linear-gradient(90deg,var(--brand),var(--cyan))}
.delta{
  margin-top:28px;
  text-align:center;
  font-size:15px;
  color:var(--muted);
}
.delta strong{
  font-family:var(--mono);
  font-size:34px;
  color:var(--brand);
  font-weight:700;
  margin-right:8px;
  letter-spacing:-.02em;
}

/* FAQ */
.faq-list{max-width:760px;margin:0 auto}
.faq-item{
  background:#fff;
  border-radius:var(--r-md);
  margin-bottom:14px;
  box-shadow:var(--sh-1);
  border-left:3px solid transparent;
  transition:border-color .2s ease,box-shadow .2s ease;
  overflow:hidden;
}
.faq-item.is-open{border-left-color:var(--brand);box-shadow:var(--sh-2)}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:56px;
  padding:14px 22px;
  text-align:left;
  font-size:16px;
  font-weight:700;
  color:var(--text);
}
.faq-q .sign{
  flex:none;
  width:22px;height:22px;
  position:relative;
  transition:transform .18s ease;
}
.faq-q .sign::before,
.faq-q .sign::after{
  content:"";
  position:absolute;
  background:var(--brand);
  border-radius:2px;
}
.faq-q .sign::before{left:0;top:10px;width:22px;height:2px}
.faq-q .sign::after{top:0;left:10px;width:2px;height:22px}
.faq-item.is-open .sign{transform:rotate(180deg)}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .28s ease;
}
.faq-item.is-open .faq-a{max-height:340px}
.faq-a p{
  padding:0 22px 22px;
  font-size:15px;
  line-height:1.8;
  color:var(--muted);
}

/* CTA */
.cta-section{
  background:var(--ink);
  color:#fff;
  border-radius:0;
  position:relative;
  overflow:hidden;
}
.cta-section::before{
  content:"";
  position:absolute;
  inset:0;
  background:radial-gradient(circle at 82% 18%,rgba(194,24,155,.16),transparent 60%);
  pointer-events:none;
}
.cta-grid{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:56px;
  align-items:start;
}
.cta-copy h2{
  font-size:clamp(22px,2.4vw,28px);
  font-weight:800;
  line-height:1.35;
}
.cta-copy p{margin-top:16px;color:rgba(255,255,255,.74);font-size:15px;max-width:520px}
.trust-list{margin-top:30px;display:grid;gap:14px}
.trust-list li{
  display:flex;
  align-items:center;
  gap:12px;
  font-size:14.5px;
  color:rgba(255,255,255,.86);
}
.trust-list .tick{
  width:22px;height:22px;flex:none;
  border-radius:50%;
  background:rgba(31,216,164,.16);
  color:var(--ok);
  display:flex;align-items:center;justify-content:center;
  font-size:12px;
  font-weight:700;
}
.form-card{
  background:#fff;
  color:var(--text);
  border-radius:var(--r-lg);
  padding:30px 26px;
  box-shadow:var(--sh-2);
}
.form-card h3{font-size:19px;font-weight:800}
.form-card .form-note{margin-top:8px;font-size:13.5px;color:var(--muted)}
.field{margin-top:18px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px}
.field input,
.field textarea{
  width:100%;
  border:1px solid var(--line);
  border-radius:10px;
  background:#fff;
  padding:0 14px;
  height:44px;
  font-size:14.5px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field textarea{height:96px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input:focus,
.field textarea:focus{
  outline:none;
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(194,24,155,.14);
}
.form-submit{margin-top:22px;width:100%}
.form-tip{margin-top:14px;font-size:13.5px;color:var(--ok);min-height:20px}

/* 页脚 */
.site-footer{
  background:var(--ink);
  color:rgba(255,255,255,.72);
  padding:64px 0 0;
  font-size:14px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:44px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-weight:800;
  font-size:20px;
  margin-bottom:16px;
}
.footer-about{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);max-width:340px}
.footer-col h4{
  color:#fff;
  font-size:14px;
  font-weight:700;
  margin-bottom:16px;
  letter-spacing:.04em;
}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{color:rgba(255,255,255,.68);transition:color .18s ease}
.footer-col ul li a:hover{color:var(--brand)}
.footer-contact li{display:flex;gap:10px;align-items:baseline;color:rgba(255,255,255,.68)}
.footer-contact .mark{
  font-family:var(--mono);
  font-size:11px;
  color:var(--cyan);
  flex:none;
}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 0 26px;
  font-size:13px;
  color:rgba(255,255,255,.5);
}
.fb-left{display:flex;flex-wrap:wrap;gap:16px}
.to-top{
  width:40px;height:40px;
  border-radius:50%;
  background:rgba(194,24,155,.16);
  color:#fff;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:16px;
  transition:background .2s ease,transform .2s ease;
}
.to-top:hover{background:rgba(194,24,155,.36);transform:translateY(-2px)}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .flow{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:1023px){
  .hotwords{display:none}
  .hero-inner{grid-template-columns:1fr;gap:40px}
  .hero-figure{max-width:640px}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .metric{border-bottom:1px solid var(--line)}
  .metric:nth-child(2n){border-right:0}
  .metric:nth-child(n+3){border-bottom:0}
  .compare-wrap{grid-template-columns:1fr}
  .cta-grid{grid-template-columns:1fr;gap:40px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .section{padding:56px 0}
  .burger{display:inline-flex;align-items:center;justify-content:center}
  .topbar-actions .btn-sm{display:none}
  .search-wrap.is-open .search-input{width:150px}
  .channelbar-inner{gap:20px}
  .cap-row{grid-template-columns:132px 1fr;gap:16px;min-height:auto;padding:16px 8px}
  .cap-arrow{display:none}
  .cap-title{font-size:17px}
  .cap-desc{-webkit-line-clamp:2}
  .flow{grid-template-columns:1fr}
  .float-a{left:8px;bottom:12px}
  .float-b{right:8px;top:12px}
  .float-card{padding:10px 14px}
  .float-card .fc-num{font-size:20px}
}
@media (max-width:639px){
  .scene-grid{grid-template-columns:1fr}
  .metrics{grid-template-columns:1fr}
  .metric{border-right:0;border-bottom:1px solid var(--line)}
  .metric:last-child{border-bottom:0}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .hero-actions .btn{width:100%}
  .page-hero{padding:40px 0 56px}
}