/* roulang page: index */
:root{
  --cyan:#23B5A7;
  --purple:#7B61FF;
  --pink:#FF8FB1;
  --gold:#F5C46B;
  --bg:#F7F5F2;
  --mist:#EFF3F1;
  --white:#FFFFFF;
  --ink:#171528;
  --text:#2C2A3A;
  --muted:#6B6879;
  --line:rgba(23,21,40,.08);
  --grad:linear-gradient(120deg,#23B5A7 0%,#7B61FF 100%);
  --r-lg:24px;
  --r-md:18px;
  --r-sm:14px;
  --sh-sm:0 6px 18px rgba(123,97,255,.10);
  --sh-md:0 12px 32px rgba(35,181,167,.12);
}
*{margin:0;padding:0;box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:15px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit;color:inherit}
:focus-visible{outline:3px solid rgba(123,97,255,.55);outline-offset:2px;border-radius:6px}

.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:96px 0}
.section--mist{background:var(--mist)}
.section--white{background:var(--white)}

/* ---------- 按钮 / 标签 / 徽章 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  height:48px;padding:0 28px;border-radius:999px;
  font-size:15px;font-weight:700;letter-spacing:.3px;
  transition:transform .25s ease,box-shadow .25s ease,background-color .25s ease,color .25s ease,border-color .25s ease;
}
.btn-sm{height:44px;padding:0 22px;font-size:14px}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(123,97,255,.22)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(123,97,255,.30)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--cyan);border:1.5px solid var(--cyan)}
.btn-ghost:hover{background:rgba(35,181,167,.08);transform:translateY(-2px)}
.btn-invert{background:#fff;color:var(--cyan);box-shadow:0 10px 24px rgba(23,21,40,.16)}
.btn-invert:hover{background:transparent;color:#fff;border:1.5px solid #fff;transform:translateY(-2px)}

.tag{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;
  border-radius:999px;background:rgba(23,21,40,.05);
  color:var(--muted);font-size:13px;font-weight:500;
}
a.tag{border:1px solid rgba(35,181,167,.30);background:#fff;color:var(--cyan);transition:.25s ease}
a.tag:hover{background:var(--grad);color:#fff;border-color:transparent}

.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:700;color:var(--cyan);
  padding-bottom:2px;border-bottom:2px solid rgba(35,181,167,.28);
  transition:.25s ease;
}
.text-link:hover{color:var(--purple);border-bottom-color:rgba(123,97,255,.5)}

/* ---------- 头部 ---------- */
.site-head{position:sticky;top:0;z-index:60;padding:16px 0 0}
.pill{
  display:flex;align-items:center;gap:20px;
  background:rgba(255,255,255,.96);
  border:1px solid rgba(35,181,167,.18);
  border-radius:999px;
  padding:10px 12px 10px 20px;
  box-shadow:0 6px 18px rgba(123,97,255,.08);
  transition:box-shadow .3s ease,background-color .3s ease;
}
.site-head.is-stuck .pill{
  background:rgba(255,255,255,.92);
  box-shadow:0 14px 34px rgba(23,21,40,.14);
}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:30px;height:30px;border-radius:10px;
  background:var(--grad);
  position:relative;
  box-shadow:inset 0 0 0 2px rgba(255,255,255,.55);
}
.logo-mark::after{
  content:"";position:absolute;inset:7px;
  border-radius:4px;
  background:rgba(255,255,255,.85);
  transform:rotate(45deg);
}
.logo-text{font-size:17px;font-weight:800;letter-spacing:.6px;white-space:nowrap}
.nav{display:flex;align-items:center;gap:24px;margin-left:auto}
.nav a{font-size:14.5px;font-weight:500;color:var(--text);position:relative;padding:6px 2px;transition:color .25s ease}
.nav a:hover{color:var(--cyan)}
.nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:999px;
  background:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
}
.nav a:hover::after{transform:scaleX(1)}
.head-act{display:flex;align-items:center;gap:12px;margin-left:8px}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:999px;color:var(--text);
  transition:.25s ease;
}
.icon-btn:hover{background:rgba(35,181,167,.10);color:var(--cyan)}
.burger{display:none;width:44px;height:44px;border-radius:999px;margin-left:auto;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.burger span{display:block;width:20px;height:2px;border-radius:2px;background:var(--text)}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(23,21,40,.42);z-index:80;opacity:0;pointer-events:none;transition:opacity .28s ease}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:90;
  width:min(86vw,340px);background:#fff;padding:24px;
  transform:translateX(100%);transition:transform .28s ease;
  box-shadow:-20px 0 44px rgba(23,21,40,.16);
  overflow-y:auto;
}
.drawer.is-open{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-title{font-size:16px;font-weight:800}
.drawer-close{width:44px;height:44px;border-radius:999px;font-size:18px;color:var(--muted)}
.drawer-search{margin-bottom:16px}
.drawer-search input{
  width:100%;height:48px;border-radius:var(--r-sm);
  border:1px solid rgba(23,21,40,.12);padding:0 16px;background:#fff;
  transition:.25s ease;font-size:15px;
}
.drawer-search input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(35,181,167,.16)}
.drawer-nav{border-top:1px solid var(--line)}
.drawer-nav a{display:block;font-size:16px;line-height:2.2;padding:10px 0;border-bottom:1px solid var(--line);font-weight:500}
.drawer-nav a:hover{color:var(--cyan)}
.drawer-cta{width:100%;margin-top:20px}
.drawer-note{margin-top:16px;font-size:13px;color:var(--muted);line-height:1.8}

/* ---------- 搜索弹层 ---------- */
.search-modal{
  position:fixed;inset:0;z-index:95;display:flex;align-items:center;justify-content:center;
  background:rgba(23,21,40,.46);padding:24px;
  opacity:0;pointer-events:none;transition:opacity .25s ease;
}
.search-modal.is-open{opacity:1;pointer-events:auto}
.search-box{
  width:100%;max-width:480px;background:#fff;border-radius:var(--r-lg);
  padding:28px;box-shadow:0 24px 60px rgba(23,21,40,.24);position:relative;
}
.search-box h3{font-size:20px;font-weight:800;margin-bottom:16px}
.search-box input{
  width:100%;height:48px;border-radius:var(--r-sm);border:1px solid rgba(23,21,40,.12);
  padding:0 16px;font-size:15px;transition:.25s ease;margin-bottom:16px;
}
.search-box input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(35,181,167,.16)}
.search-close{
  position:absolute;top:14px;right:14px;width:44px;height:44px;border-radius:999px;
  font-size:18px;color:var(--muted);
}
.search-close:hover{background:rgba(23,21,40,.06)}

/* ---------- Hero ---------- */
.hero{padding:56px 0 96px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--cyan);
  background:rgba(35,181,167,.10);border-radius:999px;padding:6px 16px;margin-bottom:20px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--grad)}
.hero h1{
  font-size:48px;line-height:1.24;font-weight:800;letter-spacing:.5px;
  margin-bottom:20px;
}
.hero h1 em{
  font-style:normal;
  background:var(--grad);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.lede{font-size:16px;line-height:1.85;color:var(--muted);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.stat-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.stat-badge{
  display:inline-flex;align-items:baseline;gap:6px;
  padding:8px 18px;border-radius:999px;
  background-image:linear-gradient(#fff,#fff),var(--grad);
  background-origin:border-box;
  background-clip:padding-box,border-box;
  border:1.5px solid transparent;
}
.stat-badge strong{
  font-size:22px;font-weight:800;font-variant-numeric:tabular-nums;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat-badge span{font-size:12px;color:var(--muted);font-weight:500}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}

.hero-visual{position:relative;padding:12px 0}
.hero-figure{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-md)}
.hero-figure img{width:100%;aspect-ratio:16/10;object-fit:cover}
.hero-figure .corner{
  position:absolute;top:16px;left:16px;
  background:var(--grad);color:#fff;font-size:12px;font-weight:700;
  padding:5px 14px;border-radius:999px;letter-spacing:.4px;
}
.float-card{
  position:absolute;background:#fff;border-radius:var(--r-md);
  padding:12px 16px;box-shadow:0 12px 30px rgba(123,97,255,.18);
  display:flex;align-items:center;gap:10px;
}
.float-a{left:-26px;bottom:-20px;transform:rotate(-3deg)}
.float-b{right:-14px;top:-16px;transform:rotate(2deg)}
.float-a strong{font-size:20px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.float-a span{font-size:12px;color:var(--muted)}
.stars{color:var(--gold);font-size:14px;letter-spacing:1px}
.float-b em{font-style:normal;font-size:12px;color:var(--muted)}

/* ---------- 板块标题 ---------- */
.sec-head{max-width:780px;margin-bottom:36px}
.sec-head h2{
  font-size:30px;font-weight:800;line-height:1.36;letter-spacing:.5px;
  padding-left:18px;position:relative;
}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:5px;height:28px;border-radius:999px;background:var(--grad);
}
.sec-head p{margin-top:10px;padding-left:18px;font-size:15px;color:var(--muted)}

/* ---------- 痛点 ---------- */
.pain-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.pain-card{
  background:#fff;border-radius:var(--r-lg);padding:32px;
  border:1px solid rgba(23,21,40,.06);
  box-shadow:var(--sh-sm);
  position:relative;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.pain-card:nth-child(2){margin-top:22px}
.pain-card:nth-child(4){margin-top:22px}
.pain-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:rgba(35,181,167,.45)}
.pain-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:999px;
  background:var(--grad);color:#fff;font-size:14px;font-weight:800;
  margin-bottom:16px;
}
.pain-card h3{font-size:19px;font-weight:700;margin-bottom:8px}
.pain-card p{font-size:14.5px;color:var(--muted);line-height:1.8}

/* ---------- 解决方案 ---------- */
.solution-grid{display:grid;grid-template-columns:8fr 4fr;gap:24px;align-items:start}
.solve-main{
  background:#fff;border-radius:var(--r-lg);padding:36px;
  box-shadow:var(--sh-sm);border:1px solid rgba(23,21,40,.06);
}
.icon-box{
  display:inline-flex;align-items:center;justify-content:center;
  width:56px;height:56px;border-radius:var(--r-md);
  background:rgba(35,181,167,.10);color:var(--cyan);margin-bottom:20px;
}
.solve-main h3{font-size:20px;font-weight:700;margin-bottom:20px}
.point-list li{
  position:relative;padding-left:18px;margin-bottom:14px;
  font-size:14.5px;color:var(--muted);line-height:1.8;
}
.point-list li::before{
  content:"";position:absolute;left:0;top:9px;
  width:3px;height:16px;border-radius:999px;background:var(--grad);
}
.solve-main .text-link{margin-top:8px}
.solve-side{display:grid;gap:24px}
.solve-mini{
  background:#fff;border-radius:var(--r-lg);padding:26px;
  box-shadow:var(--sh-sm);border:1px solid rgba(23,21,40,.06);
  transition:transform .25s ease,box-shadow .25s ease;
}
.solve-mini:hover{transform:translateY(-4px);box-shadow:var(--sh-md)}
.solve-mini h3{font-size:17px;font-weight:700;margin-bottom:10px}
.solve-mini p{font-size:14px;color:var(--muted);line-height:1.8;margin-bottom:14px}
.mini-badge{
  display:inline-flex;align-items:baseline;gap:5px;
  padding:6px 14px;border-radius:999px;
  background-image:linear-gradient(#fff,#fff),var(--grad);
  background-origin:border-box;background-clip:padding-box,border-box;
  border:1.5px solid transparent;
}
.mini-badge strong{font-size:18px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;font-variant-numeric:tabular-nums}
.mini-badge span{font-size:12px;color:var(--muted)}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative;padding-top:6px}
.steps::before{
  content:"";position:absolute;left:6%;right:6%;top:46px;
  border-top:2px dashed rgba(123,97,255,.22);
}
.step{
  position:relative;z-index:1;background:#fff;border-radius:var(--r-md);
  padding:24px;box-shadow:var(--sh-sm);border:1px solid rgba(23,21,40,.05);
  transition:transform .25s ease,box-shadow .25s ease;
}
.step:nth-child(even){transform:translateY(12px)}
.step:hover{box-shadow:var(--sh-md)}
.step-num{
  display:flex;align-items:center;justify-content:center;
  width:32px;height:32px;border-radius:50%;
  background:var(--grad);color:#fff;font-size:14px;font-weight:800;
  margin-bottom:14px;
}
.step h3{font-size:17px;font-weight:700;margin-bottom:8px}
.step p{font-size:14px;color:var(--muted);line-height:1.8}

/* ---------- KPI ---------- */
.kpi-row{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.kpi{
  background:#fff;border-radius:var(--r-lg);padding:28px;
  border:1px solid rgba(23,21,40,.06);box-shadow:var(--sh-sm);
  transition:transform .25s ease,box-shadow .25s ease;
  text-align:left;
}
.kpi:hover{transform:translateY(-2px);box-shadow:var(--sh-md)}
.kpi strong{
  display:block;font-size:40px;line-height:1.15;font-weight:800;
  font-variant-numeric:tabular-nums;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.kpi span{display:block;font-size:14px;font-weight:700;margin:6px 0 8px}
.kpi p{font-size:13px;color:var(--muted);line-height:1.75}
.kpi-note{margin-top:20px;font-size:13px;color:var(--muted)}

/* ---------- 专题卡片 ---------- */
.topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.topic-card{
  background:#fff;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid rgba(23,21,40,.06);box-shadow:var(--sh-sm);
  display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease;
}
.topic-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md)}
.topic-card--wide{grid-column:span 2}
.topic-thumb{position:relative;overflow:hidden}
.topic-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .3s ease}
.topic-card:hover .topic-thumb img{transform:scale(1.03)}
.topic-thumb .pill-tag{
  position:absolute;top:14px;left:14px;
  background:var(--grad);color:#fff;font-size:12px;font-weight:700;
  padding:5px 14px;border-radius:999px;
}
.topic-body{padding:24px;display:flex;flex-direction:column;flex:1}
.topic-body h3{font-size:19px;font-weight:700;margin-bottom:8px}
.topic-body p{font-size:14px;color:var(--muted);line-height:1.8;margin-bottom:16px;flex:1}
.topic-meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}

/* ---------- 证言 ---------- */
.quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.quote{
  background:#fff;border-radius:var(--r-lg);padding:30px;
  border:1px solid rgba(23,21,40,.06);box-shadow:var(--sh-sm);
  position:relative;
}
.quote:nth-child(2){margin-top:44px}
.quote:nth-child(3){margin-top:18px}
.qmark{
  display:block;font-size:56px;line-height:1;font-weight:800;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;
  color:transparent;opacity:.24;margin-bottom:6px;
}
.quote blockquote{font-size:15px;line-height:1.85;color:var(--text);margin-bottom:20px}
.quote figcaption{display:flex;align-items:center;gap:12px}
.avatar{
  width:40px;height:40px;border-radius:50%;flex:0 0 40px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(35,181,167,.14);color:var(--cyan);
  font-size:15px;font-weight:800;
}
.quote figcaption strong{display:block;font-size:14px;font-weight:700}
.quote figcaption em{font-style:normal;font-size:12.5px;color:var(--muted)}

/* ---------- 适用人群 ---------- */
.who-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.who-card{
  display:flex;align-items:center;gap:18px;
  background:#fff;border-radius:var(--r-lg);padding:24px 26px;
  border:1px solid rgba(23,21,40,.06);box-shadow:var(--sh-sm);
  min-height:96px;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.who-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:rgba(123,97,255,.35)}
.who-icon{
  flex:0 0 40px;width:40px;height:40px;border-radius:var(--r-sm);
  display:flex;align-items:center;justify-content:center;
  background:rgba(123,97,255,.12);color:var(--purple);
}
.who-card h3{font-size:17px;font-weight:700;margin-bottom:4px}
.who-card p{font-size:13.5px;color:var(--muted);line-height:1.7}

/* ---------- 更新 ---------- */
.update-grid{display:grid;grid-template-columns:8fr 4fr;gap:24px;align-items:start}
.update-list{background:#fff;border-radius:var(--r-lg);padding:8px 28px;box-shadow:var(--sh-sm);border:1px solid rgba(23,21,40,.06)}
.update-item{
  display:flex;gap:18px;padding:20px 0;
  border-bottom:1px solid var(--line);
}
.update-item:last-child{border-bottom:0}
.date-badge{
  flex:0 0 62px;height:44px;border-radius:var(--r-sm);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:800;font-variant-numeric:tabular-nums;
  color:var(--cyan);
  background-image:linear-gradient(#fff,#fff),var(--grad);
  background-origin:border-box;background-clip:padding-box,border-box;
  border:1.5px solid transparent;
}
.update-item h3{font-size:16px;font-weight:700;margin-bottom:4px;transition:.25s ease}
.update-item a:hover h3{color:var(--cyan);transform:translateX(2px)}
.update-item p{font-size:13.5px;color:var(--muted);line-height:1.75;margin-bottom:8px}
.update-side{
  background:#fff;border-radius:var(--r-lg);padding:28px;
  box-shadow:var(--sh-sm);border:1px solid rgba(23,21,40,.06);
}
.update-side h3{font-size:17px;font-weight:700;margin-bottom:16px}
.bar-wrap{margin-bottom:18px}
.bar-track{height:8px;border-radius:999px;background:var(--mist);overflow:hidden}
.bar-fill{display:block;height:100%;border-radius:999px;background:var(--grad);width:78%}
.bar-label{display:flex;justify-content:space-between;font-size:13px;margin-bottom:8px;color:var(--muted)}
.bar-label b{color:var(--text);font-variant-numeric:tabular-nums}
.update-side ul li{
  font-size:13.5px;color:var(--muted);line-height:1.8;
  padding-left:16px;position:relative;margin-bottom:8px;
}
.update-side ul li::before{
  content:"";position:absolute;left:0;top:9px;
  width:6px;height:6px;border-radius:50%;background:rgba(35,181,167,.6);
}

/* ---------- 深色指标 ---------- */
.section--dark{background:var(--ink);color:#fff}
.dark-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:center}
.dark-grid h2{font-size:30px;font-weight:800;line-height:1.36;letter-spacing:.5px;margin-bottom:12px}
.dark-grid .dark-sub{font-size:14.5px;color:rgba(255,255,255,.68);line-height:1.8}
.metric{margin-bottom:26px}
.metric:last-child{margin-bottom:0}
.metric-top{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:10px}
.metric-top span{font-size:14px;color:rgba(255,255,255,.78)}
.metric-top b{font-size:22px;font-weight:800;font-variant-numeric:tabular-nums;
  background:linear-gradient(120deg,#4FE0D0 0%,#A08CFF 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.metric-track{height:8px;border-radius:999px;background:rgba(255,255,255,.12);overflow:hidden}
.metric-track i{display:block;height:100%;border-radius:999px;background:var(--grad)}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start}
.faq-side h2{font-size:30px;font-weight:800;line-height:1.36;letter-spacing:.5px;margin-bottom:12px}
.faq-side p{font-size:14.5px;color:var(--muted);line-height:1.85}
.faq-item{
  background:#fff;border-radius:16px;padding:0 22px;margin-bottom:12px;
  border:1px solid rgba(23,21,40,.06);position:relative;overflow:hidden;
  transition:box-shadow .25s ease;
}
.faq-item[open]{box-shadow:var(--sh-md)}
.faq-item[open]::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;
  width:3px;border-radius:999px;background:var(--grad);
}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 34px 18px 0;
  font-size:16px;font-weight:700;position:relative;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";position:absolute;right:0;top:50%;transform:translateY(-50%);
  font-size:20px;font-weight:700;color:var(--cyan);line-height:1;
}
.faq-item[open] summary::after{content:"−"}
.faq-item p{padding-bottom:18px;font-size:14.5px;color:var(--muted);line-height:1.85}

/* ---------- 分类胶囊 ---------- */
.cat-wrap{text-align:center}
.cat-tags{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
.cat-tags a{
  display:inline-flex;align-items:center;height:40px;padding:0 20px;
  border-radius:999px;font-size:14px;font-weight:600;color:var(--purple);
  background-image:linear-gradient(#fff,#fff),var(--grad);
  background-origin:border-box;background-clip:padding-box,border-box;
  border:1.5px solid transparent;
  transition:.25s ease;
}
.cat-tags a:hover{background:var(--grad);color:#fff;border-color:transparent;transform:translateY(-2px)}
.cat-note{margin-top:18px;font-size:13px;color:var(--muted)}

/* ---------- CTA ---------- */
.cta-card{
  position:relative;border-radius:32px;overflow:hidden;
  background:var(--grad);
  color:#fff;padding:56px;
}
.cta-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.22;mix-blend-mode:luminosity}
.cta-inner{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.cta-inner h2{font-size:32px;font-weight:800;line-height:1.32;letter-spacing:.5px;margin-bottom:12px}
.cta-inner p{font-size:15px;color:rgba(255,255,255,.88);line-height:1.8}
.cta-form label{display:block;font-size:13px;font-weight:600;margin-bottom:8px;color:rgba(255,255,255,.9)}
.field{display:flex;gap:12px}
.field input{
  flex:1;height:48px;border-radius:var(--r-sm);border:1.5px solid rgba(255,255,255,.5);
  background:rgba(255,255,255,.96);padding:0 16px;font-size:15px;color:var(--text);
  transition:.25s ease;min-width:0;
}
.field input::placeholder{color:#9A97A8}
.field input:focus{outline:none;border-color:#fff;box-shadow:0 0 0 3px rgba(255,255,255,.35)}
.privacy{margin-top:12px;font-size:12px;color:rgba(255,255,255,.78);line-height:1.7}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--mist);padding:64px 0 24px;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.foot-brand .logo-mark{width:28px;height:28px;border-radius:9px}
.foot-brand .logo-text{font-size:16px}
.foot-desc{font-size:13.5px;color:var(--muted);line-height:1.85;margin-bottom:16px;max-width:280px}
.foot-sub{display:flex;gap:10px}
.foot-sub input{
  flex:1;min-width:0;height:44px;border-radius:var(--r-sm);
  border:1px solid rgba(23,21,40,.12);background:#fff;padding:0 14px;font-size:14px;
  transition:.25s ease;
}
.foot-sub input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(35,181,167,.16)}
.foot-sub button{
  flex:0 0 auto;height:44px;padding:0 18px;border-radius:var(--r-sm);
  background:var(--grad);color:#fff;font-size:14px;font-weight:700;
  transition:.25s ease;
}
.foot-sub button:hover{transform:translateY(-2px);box-shadow:0 10px 22px rgba(123,97,255,.24)}
.foot-col h4{font-size:14px;font-weight:800;margin-bottom:14px}
.foot-col li{margin-bottom:10px}
.foot-col a{font-size:13.5px;color:var(--muted);transition:.25s ease}
.foot-col a:hover{color:var(--cyan)}
.foot-note{font-size:13px;color:var(--muted);line-height:1.85}
.foot-note strong{color:var(--text);font-weight:700}
.foot-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(23,21,40,.08);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:12.5px;color:var(--muted);
}

/* ---------- 响应式 ---------- */
@media(max-width:1024px){
  .wrap{padding:0 24px}
  .section{padding:72px 0}
  .nav{display:none}
  .head-act{display:none}
  .burger{display:flex}
  .hero{padding:40px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero h1{font-size:38px}
  .hero-visual{max-width:600px}
  .solution-grid{grid-template-columns:1fr}
  .solve-side{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .steps::before{display:none}
  .step:nth-child(even){transform:none}
  .kpi-row{grid-template-columns:repeat(2,1fr)}
  .topic-grid{grid-template-columns:repeat(2,1fr)}
  .topic-card--wide{grid-column:span 2}
  .quotes{grid-template-columns:1fr 1fr}
  .quote:nth-child(2){margin-top:0}
  .quote:nth-child(3){margin-top:0}
  .update-grid{grid-template-columns:1fr}
  .dark-grid{grid-template-columns:1fr;gap:32px}
  .faq-grid{grid-template-columns:1fr;gap:28px}
  .cta-inner{grid-template-columns:1fr;gap:32px}
  .cta-card{padding:40px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media(max-width:768px){
  .section{padding:56px 0}
  .hero{padding:32px 0 56px}
  .hero h1{font-size:32px}
  .sec-head h2,.faq-side h2,.dark-grid h2{font-size:24px}
  .sec-head h2::before{height:22px}
  .pain-grid{grid-template-columns:1fr}
  .pain-card:nth-child(2),.pain-card:nth-child(4){margin-top:0}
  .solve-side{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .kpi-row{grid-template-columns:1fr}
  .topic-grid{grid-template-columns:1fr}
  .topic-card--wide{grid-column:span 1}
  .quotes{grid-template-columns:1fr}
  .who-grid{grid-template-columns:1fr}
  .float-a{left:-8px;bottom:-16px}
  .float-b{right:-6px;top:-14px}
  .cta-card{padding:28px;border-radius:24px}
  .cta-inner h2{font-size:24px}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .update-list{padding:8px 20px}
  .pain-card,.solve-main,.solve-mini,.kpi,.quote,.who-card,.update-side{padding:22px}
  .topic-body{padding:20px}
}
@media(max-width:520px){
  .wrap{padding:0 16px}
  .hero h1{font-size:28px}
  .hero-actions .btn{width:100%}
  .stat-row{gap:8px}
  .stat-badge{padding:6px 14px}
  .stat-badge strong{font-size:19px}
  .sec-head h2,.faq-side h2,.dark-grid h2{font-size:22px}
  .update-item{flex-direction:column;gap:10px}
  .date-badge{flex:0 0 auto;width:64px}
  .field{flex-direction:column}
  .field button{width:100%}
  .cta-card{padding:22px}
  .fail-safe{display:none}
}