/* ============================================================
   售前演示页 专属组件样式（官网风格补充）
   仅补充官网没有的模块：模块导航 / 痛点卡 / 能力卡 /
   对话流演示 / 数据源卡 / 三步上手 / 行业适配 / 三条规矩
   ============================================================ */

/* ---------- 模块吸顶导航 ---------- */
.modnav {
  position: sticky; top: 64px; z-index: 40;
  background: #fff; border-bottom: 1px solid var(--c-line);
  box-shadow: var(--shadow-sm);
}
.modnav .wrap {
  max-width: var(--container); margin: 0 auto; padding: 0 16px;
  display: flex; gap: 4px; overflow-x: auto; scrollbar-width: none;
}
.modnav .wrap::-webkit-scrollbar { display: none; }
.modnav .mi {
  position: relative; flex: 0 0 auto; padding: 13px 15px; font-size: 14px; color: var(--c-text-2);
  white-space: nowrap; border-bottom: 3px solid transparent; transition: color .2s, border-color .2s;
}
.modnav .mi:hover { color: var(--c-primary); }
.modnav .mi.cur { color: var(--c-primary); font-weight: 700; border-bottom-color: var(--c-accent); }
.modnav .mi.cta { color: var(--c-accent); font-weight: 700; margin-left: auto; }

/* ---------- 痛点卡（左色条） ---------- */
.pain-card { position: relative; padding: 26px 26px 26px 30px; overflow: hidden; }
.pain-card::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 5px;
  background: linear-gradient(180deg, var(--c-accent), var(--c-primary-light));
}
.pain-card .badge {
  display: inline-block; font-size: 12px; font-weight: 700; color: var(--c-accent);
  background: var(--c-accent-soft); padding: 4px 12px; border-radius: 999px; margin-bottom: 14px;
}
.pain-card h3 { font-size: 19px; color: var(--c-primary-deep); margin-bottom: 10px; font-weight: 800; }
.pain-card p { color: var(--c-text-2); font-size: 15px; }
.pain-card .loss {
  margin-top: 16px; padding-top: 14px; border-top: 1px dashed var(--c-line);
  font-size: 14px; color: var(--c-text); font-weight: 600;
}
.pain-card .loss b { color: var(--c-emphasis); font-family: var(--font-num); }

/* ---------- 能力卡（编号） ---------- */
.ability-card { position: relative; padding: 30px 26px; }
.ability-card .idx {
  font-family: var(--font-num); font-size: 30px; font-weight: 700; line-height: 1;
  color: var(--c-accent); opacity: .35; margin-bottom: 14px;
}
.ability-card h3 { font-size: 18px; color: var(--c-primary-deep); margin-bottom: 10px; font-weight: 800; }
.ability-card p { color: var(--c-text-2); font-size: 14px; }
.ability-card .ico {
  position: absolute; top: 26px; right: 26px; width: 40px; height: 40px; border-radius: 10px;
  background: var(--c-accent-soft); display: grid; place-items: center; color: var(--c-primary); font-size: 20px;
}
.trust-anchor {
  margin-top: 28px; display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  background: var(--c-bg-alt); border: 1px solid var(--c-line); border-radius: var(--radius-lg);
  padding: 20px 24px;
}
.trust-anchor .badge { font-size: 13px; font-weight: 700; color: #fff; background: var(--c-primary); padding: 4px 12px; border-radius: 999px; }
.trust-anchor p { color: var(--c-text); font-size: 15px; }

/* ---------- 效果指标卡（B 型） ---------- */
.kpi-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.kpi {
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg);
  padding: 26px; box-shadow: var(--shadow-sm); text-align: center;
}
.kpi .label { font-size: 15px; color: var(--c-text-2); font-weight: 600; }
.kpi .vals { margin: 16px 0 8px; display: flex; align-items: baseline; justify-content: center; gap: 8px; flex-wrap: wrap; }
.kpi .from { font-family: var(--font-num); font-size: 20px; color: var(--c-text-2); text-decoration: line-through; }
.kpi .to { font-family: var(--font-num); font-size: 38px; font-weight: 800; color: var(--c-primary); }
.kpi .to .u { font-size: 15px; color: var(--c-text-2); margin-left: 2px; font-weight: 600; }
.kpi .note { font-size: 13px; color: var(--c-text-2); }
.kpi .tagok { display: inline-block; margin-top: 12px; font-size: 12px; font-weight: 700; color: var(--c-accent); background: var(--c-accent-soft); padding: 3px 10px; border-radius: 999px; }
.kpi .tagwarn { display: inline-block; margin-top: 12px; font-size: 12px; font-weight: 700; color: #B9760E; background: #FFF3DF; padding: 3px 10px; border-radius: 999px; }

/* ---------- 示例输出（脱敏深块） ---------- */
.sample {
  background: var(--c-primary-deep); border-radius: var(--radius-lg); padding: 30px 32px;
  color: #e9eef5; box-shadow: var(--shadow-md); position: relative; overflow: hidden;
}
.sample::before {
  content: "脱敏示例输出"; position: absolute; top: 14px; right: 18px; font-size: 12px;
  color: rgba(255,255,255,.45); letter-spacing: .08em;
}
.sample h4 { color: #fff; font-size: 16px; margin-bottom: 16px; font-weight: 700; }
.sample table { width: 100%; border-collapse: collapse; font-size: 14px; }
.sample th, .sample td { padding: 9px 12px; text-align: left; border-bottom: 1px solid rgba(255,255,255,.12); }
.sample th { color: var(--c-accent); font-weight: 700; }
.sample td.num, .sample th.num { text-align: right; font-family: var(--font-num); }
.sample .ok { color: #6ee7b7; font-weight: 700; }
.sample .warn { color: #fbbf24; font-weight: 700; }

/* ---------- 对话流演示 ---------- */
.chat-wrap {
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md); overflow: hidden; max-width: 920px; margin: 0 auto;
}
.chat-head {
  background: linear-gradient(135deg, var(--c-primary), var(--c-primary-light)); color: #fff;
  padding: 16px 22px; display: flex; align-items: center; gap: 12px;
}
.chat-head .dot { width: 10px; height: 10px; border-radius: 50%; background: #6ee7b7; box-shadow: 0 0 0 4px rgba(110,231,183,.25); }
.chat-head .title { font-weight: 700; font-size: 15px; }
.chat-head .meta { margin-left: auto; font-size: 12px; color: rgba(255,255,255,.75); }
.chat-body { padding: 24px 22px; background: var(--c-bg-alt); min-height: 360px; max-height: 520px; overflow-y: auto; }
.msg { display: flex; gap: 12px; margin-bottom: 18px; align-items: flex-start; }
.msg .avatar { flex: 0 0 auto; width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center; font-size: 13px; font-weight: 700; color: #fff; }
.msg.user .avatar { background: var(--c-emphasis); }
.msg.bot .avatar { background: linear-gradient(135deg, var(--c-accent), var(--c-primary-light)); }
.msg .bubble { background: #fff; border: 1px solid var(--c-line); border-radius: 12px; padding: 14px 16px; font-size: 15px; color: var(--c-text); line-height: 1.7; max-width: 78%; box-shadow: var(--shadow-sm); }
.msg.user { flex-direction: row-reverse; }
.msg.user .bubble { background: var(--c-primary); color: #fff; border-color: var(--c-primary); }
.msg .bubble h5 { font-size: 15px; color: var(--c-primary-deep); margin-bottom: 8px; }
.msg.bot .bubble h5 { color: var(--c-primary-deep); }
.msg.user .bubble h5 { color: #fff; }
.msg .bubble table { width: 100%; border-collapse: collapse; margin-top: 8px; font-size: 13.5px; }
.msg .bubble th, .msg .bubble td { padding: 7px 10px; border-bottom: 1px solid var(--c-line); text-align: left; }
.msg .bubble th { background: var(--c-bg-alt); color: var(--c-text-2); font-weight: 700; }
.msg .bubble td.num, .msg .bubble th.num { text-align: right; font-family: var(--font-num); }
.msg .bubble .pill { display: inline-block; font-size: 12px; padding: 2px 9px; border-radius: 999px; font-weight: 700; }
.msg .bubble .pill.ok { background: #e7f8ef; color: #0f9d58; }
.msg .bubble .pill.warn { background: #fef3da; color: #b45309; }
.msg .bubble .pill.info { background: var(--c-accent-soft); color: var(--c-primary); }
.msg .bubble ul { margin: 6px 0 0 18px; list-style: disc; }
.msg .bubble li { margin: 3px 0; }
.typing { display: inline-flex; gap: 4px; padding: 4px 0; }
.typing span { width: 7px; height: 7px; border-radius: 50%; background: var(--c-text-2); animation: blink 1.2s infinite; }
.typing span:nth-child(2){animation-delay:.2s} .typing span:nth-child(3){animation-delay:.4s}
@keyframes blink { 0%,60%,100%{opacity:.25} 30%{opacity:1} }
.chat-foot { padding: 16px 22px; background: #fff; border-top: 1px solid var(--c-line); display: flex; gap: 12px; align-items: center; justify-content: center; flex-wrap: wrap; }
.chat-foot .btn { min-width: 130px; }
.chat-foot .hint { font-size: 13px; color: var(--c-text-2); }

/* ---------- 数据源卡 ---------- */
.data-card { display: grid; grid-template-columns: 1.1fr 1fr; gap: 0; overflow: hidden; }
.data-card .left { padding: 34px; background: var(--c-primary-deep); color: #fff; }
.data-card .left h3 { font-size: 22px; margin-bottom: 12px; }
.data-card .left p { color: rgba(255,255,255,.8); font-size: 14px; margin-bottom: 20px; }
.data-card .left .meta-row { display: flex; gap: 18px; margin: 18px 0 24px; flex-wrap: wrap; }
.data-card .left .meta-row .m .n { font-family: var(--font-num); font-size: 28px; font-weight: 700; }
.data-card .left .meta-row .m .k { font-size: 12px; color: rgba(255,255,255,.7); }
.data-card .right { padding: 34px; background: #fff; }
.data-card .right h4 { font-size: 16px; color: var(--c-primary-deep); margin-bottom: 14px; }
.data-card .right ul { margin-left: 18px; list-style: disc; color: var(--c-text-2); font-size: 14px; }
.data-card .right ul li { margin: 7px 0; }
.dl-btn {
  display: inline-flex; align-items: center; gap: 10px; margin-top: 18px;
  background: var(--c-accent); color: #fff; padding: 14px 26px; border-radius: 999px;
  font-weight: 700; transition: transform .2s, box-shadow .2s;
}
.dl-btn:hover { transform: translateY(-1px); box-shadow: var(--shadow-md); }
.dl-btn svg { width: 18px; height: 18px; }

/* ---------- 三步上手 ---------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; counter-reset: s; }
.step { position: relative; padding: 30px 26px; background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); }
.step .no { font-family: var(--font-num); font-size: 46px; font-weight: 800; color: var(--c-accent-soft); line-height: 1; }
.step h3 { font-size: 17px; color: var(--c-primary-deep); margin: 8px 0 8px; font-weight: 800; }
.step p { color: var(--c-text-2); font-size: 14px; }

/* ---------- 行业适配卡 ---------- */
.indus { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.indus .ic { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm); transition: transform .25s var(--ease), box-shadow .25s var(--ease); }
.indus .ic:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.indus .ic .ph { height: 168px; position: relative; overflow: hidden; }
.indus .ic .ph img, .indus .ic .ph svg { width: 100%; height: 100%; object-fit: cover; }
.indus .ic .body { padding: 22px; }
.indus .ic .badge { display: inline-block; font-size: 12px; font-weight: 700; color: var(--c-accent); background: var(--c-accent-soft); padding: 4px 12px; border-radius: 999px; margin-bottom: 12px; }
.indus .ic h3 { font-size: 17px; color: var(--c-primary-deep); margin-bottom: 8px; font-weight: 800; }
.indus .ic .scene { font-size: 14px; color: var(--c-text); margin-bottom: 10px; }
.indus .ic .gain { font-size: 13.5px; color: var(--c-text-2); }

/* ---------- 三条规矩 ---------- */
.rules { display: grid; grid-template-columns: repeat(3,1fr); gap: 22px; margin-top: 8px; }
.rule { background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.16); border-radius: var(--radius-lg); padding: 26px; color: #fff; }
.rule .n { font-family: var(--font-num); font-size: 26px; font-weight: 800; color: var(--c-emphasis); }
.rule h3 { font-size: 17px; margin: 8px 0 10px; font-weight: 800; }
.rule p { font-size: 14px; color: rgba(255,255,255,.78); }

/* ---------- CTA 区 ---------- */
.cta-band { background: linear-gradient(135deg, var(--c-primary-deep), var(--c-primary)); color: #fff; border-radius: var(--radius-lg); padding: 56px 40px; text-align: center; box-shadow: var(--shadow-lg); }
.cta-band h2 { font-size: 30px; font-weight: 800; margin-bottom: 14px; }
.cta-band p { color: rgba(255,255,255,.85); font-size: 16px; margin-bottom: 28px; }
.cta-band .promise { margin-top: 22px; font-size: 14px; color: rgba(255,255,255,.7); }

.note-pill { display: inline-block; margin: 18px auto 0; font-size: 12.5px; color: var(--c-text-2); background: var(--c-bg-alt); border: 1px dashed var(--c-line); padding: 8px 16px; border-radius: 999px; }
.center { text-align: center; }

@media (max-width: 1024px) {
  .kpi-grid, .indus, .rules, .steps { grid-template-columns: 1fr 1fr; }
  .data-card { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .kpi-grid, .indus, .rules, .steps { grid-template-columns: 1fr; }
  .cta-band { padding: 40px 22px; }
  .cta-band h2 { font-size: 24px; }
}