/* ===== 海参横渡北极 H5 软文页 样式（中老年软文·扁平风） ===== */
* { margin: 0; padding: 0; box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html { font-size: 17px; }

body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: #222;
  background: #f5f6f7;
  line-height: 1.95;
  font-size: 19px;
  -webkit-font-smoothing: antialiased;
}

/* 文章列：白底扁平，无卡片阴影/圆角 */
.phone {
  max-width: 540px;
  margin: 0 auto;
  background: #fff;
  min-height: 100vh;
}

/* 署名/来源行（扁平，无边框卡片） */
.source-bar {
  padding: 10px 16px;
  font-size: 14px;
  color: #999;
  background: #fff;
}
.source-bar .dot { display: none; }
.source-bar .tag { color: #c8161d; margin-left: 8px; }

/* （hero 顶部促销横幅已移除） */

/* 导读灰框 */
.intro {
  margin: 14px 16px;
  background: #f5f5f5;
  padding: 12px 14px;
  font-size: 17px;
  line-height: 1.9;
  color: #444;
}
.intro b { color: #c8161d; }

/* 黄色数据高亮（软文重点数据） */
.mark {
  background: #fff200;
  color: #c8161d;
  font-weight: 800;
  padding: 0 3px;
  border-radius: 2px;
}

/* 阅读/评论量社交背书 */
.count {
  text-align: center;
  font-size: 14px;
  color: #999;
  padding: 10px 0;
  border-top: 1px solid #eee;
  margin-top: 8px;
}
.count span { color: #c8161d; font-weight: 700; }

/* 标题 */
.headline { padding: 18px 16px 8px; background: #fff; }
.headline h1 {
  font-size: 24px;
  font-weight: 800;
  line-height: 1.55;
  color: #111;
  letter-spacing: .3px;
}
.headline h1 .hl { color: #c8161d; }

/* 通用块 */
.block { margin: 0; padding: 16px; }
.block + .block { border-top: 1px solid #eee; }

/* 图片：通栏，蓝色说明 */
.pic { padding: 12px 0; text-align: center; }
.pic img { display: block; width: 100%; height: auto; background: #eee; }
.pic .caption {
  margin-top: 8px;
  font-size: 13px;
  color: #1a0dab;
  text-align: center;
}

/* 正文段落 */
p { font-size: 19px; color: #222; margin: 14px 0; text-align: justify; line-height: 1.95; }
.block p:first-child { margin-top: 0; }
.block p:last-child { margin-bottom: 0; }

/* 行内重点标红（软文满屏红字） */
.strong { color: #c8161d; font-weight: 800; }
.lead { font-size: 21px; font-weight: 800; color: #111; line-height: 1.7; }

/* 章节小标题：双色横幅（软文标志性） */
.sec-title {
  margin: 18px 0 14px;
  padding: 12px 14px;
  background: #c8161d;
  color: #fff;
  font-size: 20px;
  font-weight: 800;
  text-align: center;
  line-height: 1.5;
  border: 2px solid #8a0d12;
  border-radius: 4px;
}
.sec-title.alt {
  background: #3c56c7;
  border-color: #1a3aa0;
}

/* 引用/导语框（去卡片化） */
.quote {
  margin: 16px 0;
  padding: 12px 14px;
  background: #fbf3ee;
  border-left: 4px solid #c8161d;
  font-size: 18px;
  color: #4a3d33;
  line-height: 1.95;
}
.quote .who { display: block; margin-top: 8px; font-size: 14px; color: #b3a596; }

/* 适宜人群：平铺编号，去除卡片/圆圈 */
.list { margin: 14px 0; }
.list .item {
  display: flex;
  align-items: baseline;
  gap: 6px;
  padding: 0;
  margin: 0 0 16px;
  background: none;
  border: none;
  box-shadow: none;
}
.list .num {
  flex: none;
  font-size: 19px;
  font-weight: 800;
  color: #c8161d;
  background: none;
  width: auto;
  height: auto;
  line-height: inherit;
}
.list .item > div { flex: 1; min-width: 0; }
.list .item h4 {
  display: inline;
  font-size: 19px;
  color: #c8161d;
  font-weight: 800;
  margin: 0;
}
.list .item p { font-size: 17px; margin: 6px 0 0; color: #333; line-height: 1.9; }
.list .item .ref { display: block; margin-top: 6px; font-size: 13px; color: #b3a596; }

/* 案例阶段卡：去卡片化 */
.stage {
  margin: 16px 0;
  padding: 0;
  background: none;
  border: none;
  border-radius: 0;
  box-shadow: none;
}
.stage .stage-h {
  font-size: 20px;
  font-weight: 800;
  color: #c8161d;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.stage .stage-h .badge {
  font-size: 13px;
  color: #fff;
  background: #c8161d;
  border-radius: 4px;
  padding: 3px 10px;
  font-weight: 700;
}

/* 提示框：浅底无重边框 */
.note {
  margin: 14px 0;
  padding: 12px 14px;
  background: #fff7ef;
  border: none;
  font-size: 17px;
  color: #6a5640;
  line-height: 1.95;
}
.note b { color: #c8161d; }

/* 微信获客卡片：复刻 kh-hsyj weixin-huoke 样式 */
.weixin-huoke { text-align: center; margin: 26px 0 8px; }
.wx-card { max-width: 100%; margin: 0 auto; padding: 18px 14px; border: 3px dashed #d41818; border-radius: 16px; background: #fff; text-indent: 0; }
.wx-card p { margin: 0 0 10px; font-size: 18px; line-height: 1.65; color: #444; text-indent: 0; text-align: center; }
.wx-card .wx-t1 { font-size: 22px; color: #d41818; font-weight: 700; }
.wx-red { color: #d41818; }
.wx-b { font-weight: 700; }
.wx-bigbtn { display: inline-block; background: radial-gradient(circle at 30% 25%, #f44336, #b71c1c); color: #fff; font-size: 18px; font-weight: 700; padding: 12px 20px; border-radius: 40px; box-shadow: 0 6px 16px rgb(183 28 28 / .4); text-decoration: none; letter-spacing: 1px; margin: 4px 0; }
.cta-tip { text-align: center; font-size: 17px; font-weight: 700; color: #fff; background: linear-gradient(90deg, #e63946, #f0743f); padding: 12px; border-radius: 10px; margin: 14px 0 24px; letter-spacing: 1px; }

/* 互动问答入口按钮（复刻 kh-hsyj） */
.qa-btn { display: block; width: 80%; max-width: 320px; margin: 16px auto; padding: 14px 0; font-size: 19px; font-weight: 700; letter-spacing: 1px; color: #fff; text-align: center; text-decoration: none; background: linear-gradient(135deg, #f44336, #b71c1c); border-radius: 40px; box-shadow: 0 6px 16px rgba(183, 28, 28, .35); -webkit-tap-highlight-color: transparent; }
.qa-btn:active { transform: translateY(1px); }

/* 互动问答弹层（复刻 kh-hsyj，红主题） */
.js-open-qa { cursor: pointer; -webkit-tap-highlight-color: transparent; }
#qaMask { position: fixed; inset: 0; z-index: 998; background: rgba(0, 0, 0, .45); opacity: 0; visibility: hidden; transition: opacity .25s ease, visibility .25s; }
#qaMask.qa-open { opacity: 1; visibility: visible; }
/* 注意：展开类名用 qa-open，不能用 show，会被覆盖掉 flex 布局 */
#qaPanel { position: fixed; inset: 0; z-index: 999; display: flex; flex-direction: column; width: 100%; height: 100%; height: 100dvh; background: #f5f6f7; overflow: hidden; transform: translateY(100%); transition: transform .3s ease; }
#qaPanel.qa-open { display: flex; transform: translateY(0); }
.qa-head { flex: none; display: flex; align-items: center; gap: 10px; padding: calc(12px + env(safe-area-inset-top, 0px)) 14px 12px; background: #fff; border-bottom: 1px solid #ececec; }
.qa-avatar { flex: none; width: 40px; height: 40px; font-size: 16px; font-weight: 700; line-height: 40px; text-align: center; color: #fff; background: linear-gradient(135deg, #f44336, #b71c1c); border-radius: 50%; }
.qa-name { font-size: 16px; font-weight: 700; color: #222; }
.qa-status { margin-top: 2px; font-size: 13px; color: #8a8f95; }
.qa-status i { display: inline-block; width: 6px; height: 6px; margin-right: 4px; background: #25d07a; border-radius: 50%; vertical-align: 1px; }
.qa-close { width: 30px; height: 30px; margin-left: auto; font-size: 22px; line-height: 28px; text-align: center; color: #9aa0a5; cursor: pointer; }
.qa-body { flex: 1 1 0%; min-height: 0; padding: 14px 14px calc(16px + env(safe-area-inset-bottom, 0px)); overflow-y: auto; -webkit-overflow-scrolling: touch; }
.qa-row { display: flex; align-items: flex-start; gap: 8px; margin-bottom: 12px; animation: qaIn .25s ease both; }
.qa-row.cs { justify-content: flex-start; }
.qa-row.me { flex-direction: row-reverse; justify-content: flex-start; }
.qa-ava { flex: none; width: 36px; height: 36px; font-size: 14px; font-weight: 700; line-height: 36px; text-align: center; color: #fff; border-radius: 50%; user-select: none; }
.qa-row.cs .qa-ava { background: linear-gradient(135deg, #f44336, #b71c1c); }
.qa-row.me .qa-ava { color: #b71c1c; background: #fdeaea; }
.qa-bubble { max-width: 80%; padding: 11px 14px; font-size: 16px; line-height: 1.7; word-break: break-word; text-align: left; }
.qa-row.cs .qa-bubble { color: #222; background: #fff; border-radius: 0 12px 12px 12px; box-shadow: 0 1px 2px rgba(0, 0, 0, .05); }
.qa-row.me .qa-bubble { color: #fff; background: linear-gradient(135deg, #f44336, #b71c1c); border-radius: 12px 0 12px 12px; }
@keyframes qaIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
.qa-typing .qa-bubble { display: flex; align-items: center; gap: 4px; padding: 13px; }
.qa-typing .qa-bubble i { width: 6px; height: 6px; background: #c2c8cc; border-radius: 50%; animation: qaDot 1s infinite; }
.qa-typing .qa-bubble i:nth-child(2) { animation-delay: .15s; }
.qa-typing .qa-bubble i:nth-child(3) { animation-delay: .3s; }
@keyframes qaDot { 0%, 60%, 100% { opacity: .35; transform: translateY(0); } 30% { opacity: 1; transform: translateY(-3px); } }
.qa-opts { display: flex; flex-wrap: wrap; gap: 8px; margin: -2px 0 14px 42px; animation: qaIn .25s ease both; }
.qa-opt { padding: 10px 16px; font-family: inherit; font-size: 15.5px; line-height: 1.3; color: #b71c1c; background: #fff; border: 1px solid #f44336; border-radius: 18px; box-shadow: 0 1px 2px rgba(0, 0, 0, .04); cursor: pointer; }
.qa-opt:active { background: #fdeaea; transform: translateY(1px); }
.qa-opt[disabled] { color: #b6bcc0; background: #f2f3f4; border-color: #e2e4e6; box-shadow: none; }
.qa-opt.is-picked[disabled] { color: #fff; background: linear-gradient(135deg, #f44336, #b71c1c); border-color: #b71c1c; }
.qa-cta-row { padding: 2px 0 10px; animation: qaIn .25s ease both; }
.qa-cta { display: block; width: 100%; padding: 14px 18px; font-family: inherit; font-size: 17px; font-weight: 700; letter-spacing: .5px; color: #fff; background: linear-gradient(135deg, #f44336, #b71c1c); border: 0; border-radius: 12px; box-shadow: 0 6px 16px rgba(183, 28, 28, .34); cursor: pointer; }
.qa-cta:active { transform: translateY(1px); }
@media (max-width: 360px) { .qa-bubble { font-size: 15px; } .qa-opt { padding: 9px 14px; font-size: 14.5px; } .qa-cta { font-size: 16px; } }

/* 结尾信 */
.letter { padding: 16px 16px 28px; }
.letter p { font-size: 18px; color: #4a3d33; }
.letter .sign { text-align: right; margin-top: 14px; color: #8a7c6c; font-size: 16px; }

/* 评论区 */
.comments { background: #fff; border-top: 8px solid #f5f6f7; }
.cmt-title {
  font-size: 21px; font-weight: 800; color: #111;
  padding: 6px 0 14px;
  border-bottom: 1px solid #eee;
  margin-bottom: 4px;
}
.cmt-title span { color: #c8161d; font-size: 16px; font-weight: 700; }
.cmt-item { display: flex; gap: 14px; padding: 16px 0; border-bottom: 1px solid #f4ede1; }
.cmt-avatar {
  flex: 0 0 46px;
  width: 46px; height: 46px;
  border-radius: 50%;
  color: #fff;
  font-size: 20px;
  font-weight: 800;
  text-align: center;
  line-height: 46px;
}
.cmt-body { flex: 1; min-width: 0; }
.cmt-name { font-size: 17px; font-weight: 800; color: #4a3d33; }
.cmt-tag {
  margin-left: 8px;
  font-size: 12px; font-weight: 700;
  color: #c8161d;
  border: 1px solid #f0c2c4;
  border-radius: 4px;
  padding: 1px 6px;
}
.cmt-text { font-size: 18px; color: #222; margin: 6px 0 10px; line-height: 1.95; }
.cmt-meta { display: flex; justify-content: space-between; font-size: 14px; color: #b3a596; }
.cmt-like { color: #c8161d; }
.cmt-foot { text-align: center; font-size: 14px; color: #b3a596; padding: 16px 0 4px; }
.cmt-input { display: flex; align-items: center; gap: 10px; margin-top: 8px; padding: 12px 0 calc(14px + env(safe-area-inset-bottom)); }
.cmt-input input {
  flex: 1;
  border: 1px solid #ece2d3;
  background: #faf6ef;
  border-radius: 22px;
  padding: 11px 16px;
  font-size: 16px;
  color: #8c7f70;
  outline: none;
}
.cmt-send {
  flex: 0 0 auto;
  background: linear-gradient(90deg, #c8161d, #e23b2f);
  color: #fff;
  font-size: 16px;
  font-weight: 800;
  padding: 11px 20px;
  border-radius: 22px;
}

/* 分割线箭头 */
.divider { text-align: center; color: #c8161d; font-size: 20px; padding: 8px 0; letter-spacing: 4px; }