/* ============ ai2up landing pages (capability) ============ */
/* 在 styles.css 设计系统之上扩展落地页专属布局 */

/* breadcrumb */
.breadcrumb{padding:90px 0 0}
.breadcrumb__inner{font-size:13.5px;color:var(--muted);display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.breadcrumb a:hover{color:var(--indigo)}
.breadcrumb span.sep{color:#cbd5e1}
.breadcrumb .cur{color:var(--ink-2);font-weight:600}

/* lp hero */
.lp-hero{position:relative;overflow:hidden;padding:30px 0 56px}
.lp-hero__bg{position:absolute;inset:0;background:
  radial-gradient(55% 60% at 85% 0%,rgba(6,182,212,.16),transparent 60%),
  radial-gradient(50% 55% at 8% 12%,rgba(99,102,241,.18),transparent 60%),
  var(--bg-alt)}
.lp-hero__inner{position:relative;text-align:center;max-width:900px;margin:0 auto}
.lp-hero__eyebrow{display:inline-block;font-size:13px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:#fff;background:var(--grad);padding:6px 16px;border-radius:999px;margin-bottom:20px}
.lp-hero__title{font-size:clamp(30px,5.2vw,52px);line-height:1.12;font-weight:900;letter-spacing:-.02em;margin-bottom:18px}
.lp-hero__sub{font-size:clamp(16px,2.2vw,19px);color:var(--ink-2);max-width:680px;margin:0 auto 30px}
.lp-hero__cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-bottom:34px}
.lp-hero__strip{display:flex;gap:28px;justify-content:center;flex-wrap:wrap;font-size:14px;color:var(--muted)}
.lp-hero__strip b{color:var(--indigo);font-size:16px}

/* generic two-column intro */
.lp-split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.lp-split__media{height:300px;border-radius:var(--radius);background:repeating-linear-gradient(45deg,#eef1f7,#eef1f7 12px,#e7ebf3 12px,#e7ebf3 24px);display:grid;place-items:center;color:var(--muted);font-size:14px;border:1px solid var(--line)}
.lp-split h2{font-size:clamp(24px,3.4vw,34px);font-weight:900;letter-spacing:-.02em;margin-bottom:14px;line-height:1.25}
.lp-split p{color:var(--muted);font-size:16px;margin-bottom:14px}
.lp-split .ticks{margin-top:6px}

/* pain points */
.pain-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.pain{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;border-top:4px solid var(--indigo)}
.pain__ico{font-size:28px;margin-bottom:10px}
.pain h3{font-size:18px;font-weight:800;margin-bottom:8px}
.pain p{color:var(--muted);font-size:14.5px}

/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;counter-reset:step}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;position:relative;transition:transform .2s,box-shadow .2s}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.step__no{width:42px;height:42px;display:grid;place-items:center;border-radius:12px;background:var(--grad-soft);color:var(--indigo);font-weight:900;font-size:18px;margin-bottom:14px}
.step h3{font-size:18px;font-weight:800;margin-bottom:8px}
.step p{color:var(--muted);font-size:14.5px}

/* module list */
.modules{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.module{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px 22px;display:flex;gap:14px;align-items:flex-start}
.module__ico{font-size:22px;flex:none;margin-top:2px}
.module h4{font-size:16px;font-weight:800;margin-bottom:4px}
.module p{color:var(--muted);font-size:14px;margin:0}

/* proof / quote band */
.proof{background:var(--grad);border-radius:28px;padding:46px;color:#fff;position:relative;overflow:hidden}
.proof::before{content:"";position:absolute;right:-50px;bottom:-50px;width:220px;height:220px;background:rgba(255,255,255,.12);border-radius:50%}
.proof__quote{font-size:clamp(18px,2.6vw,24px);font-weight:700;line-height:1.5;max-width:760px;position:relative}
.proof__by{margin-top:18px;font-size:15px;opacity:.9;position:relative}
.proof__stats{display:flex;gap:30px;flex-wrap:wrap;margin-top:26px;position:relative}
.proof__stats div{font-size:14px;opacity:.95}
.proof__stats b{display:block;font-size:26px;font-weight:900}

/* related pages (internal links) */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.related{display:block;background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px 22px;transition:transform .2s,box-shadow .2s,border-color .2s}
.related:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--indigo)}
.related__tag{font-size:11.5px;font-weight:800;color:var(--indigo);letter-spacing:.06em;text-transform:uppercase}
.related h4{font-size:16px;font-weight:800;margin:6px 0 6px}
.related p{color:var(--muted);font-size:13.5px;margin:0}
.related__go{color:var(--indigo);font-weight:700;font-size:13.5px;margin-top:10px;display:inline-block}

/* ---- 长文内容块（提升页面正文厚度，服务长尾排名） ---- */
.lp-prose{max-width:760px;margin:0 auto}
.lp-prose h3{font-size:21px;font-weight:800;margin:30px 0 12px;letter-spacing:-.01em}
.lp-prose h3:first-child{margin-top:0}
.lp-prose p{font-size:16px;line-height:1.85;color:var(--ink-2);margin-bottom:14px}
.lp-prose ul{margin:0 0 16px;padding-left:20px}
.lp-prose li{font-size:15.5px;line-height:1.8;color:var(--ink-2);margin-bottom:8px}
.lp-prose li::marker{color:var(--indigo)}
.lp-prose strong{font-weight:800;color:var(--ink)}
.lp-callout{background:var(--bg-alt);border-left:4px solid var(--indigo);border-radius:0 12px 12px 0;padding:18px 22px;margin:22px 0}
.lp-callout p:last-child{margin-bottom:0}

/* 对比表 */
.lp-table{width:100%;border-collapse:collapse;margin:22px 0;background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;font-size:15px}
.lp-table caption{caption-side:top;text-align:left;font-size:13.5px;color:var(--muted);padding:0 0 10px}
.lp-table th,.lp-table td{padding:14px 18px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
.lp-table thead th{background:var(--bg-alt);font-weight:800;font-size:14px;color:var(--ink)}
.lp-table tbody tr:last-child td{border-bottom:none}
.lp-table td:first-child{font-weight:700;white-space:nowrap}
.lp-table .yes{color:var(--green);font-weight:700}
.lp-table .no{color:#94a3b8}

/* subscribe on landing pages */
.lp-subscribe{padding:0 0 90px}
.lp-subscribe__inner{background:var(--bg-alt);border:1px solid var(--line);border-radius:28px;padding:48px;display:grid;grid-template-columns:1.1fr 1fr;gap:40px;align-items:center}
.lp-subscribe__inner h2{font-size:clamp(24px,3.2vw,34px);font-weight:900;margin-bottom:12px}
.lp-subscribe__inner p{color:var(--muted);font-size:16px;margin-bottom:18px}
.lp-subscribe__form{background:#fff;border-radius:18px;padding:24px;box-shadow:var(--shadow)}
.lp-subscribe__form input{width:100%;padding:14px 16px;border:1px solid var(--line);border-radius:12px;font-size:15px;font-family:inherit;margin-bottom:12px;outline:none}
.lp-subscribe__form input:focus{border-color:var(--indigo)}

/* responsive */
@media(max-width:980px){
  .lp-split{grid-template-columns:1fr;gap:28px}
  .lp-split__media{height:220px}
  .pain-grid,.steps,.related-grid{grid-template-columns:repeat(2,1fr)}
  .lp-subscribe__inner{grid-template-columns:1fr;padding:36px}
}
@media(max-width:680px){
  .breadcrumb{padding:80px 0 0}
  .pain-grid,.steps,.modules,.related-grid{grid-template-columns:1fr}
  .proof{padding:32px}
  .lp-subscribe__inner{padding:28px}
  .lp-prose h3{font-size:19px}
  .lp-prose p{font-size:15.5px}
  .lp-table{font-size:14px}
  .lp-table th,.lp-table td{padding:11px 13px}
  .lp-table td:first-child{white-space:normal}
}