/* ZT 专题页 · 罗鹏飞程式肿瘤诊疗技术（Google Ads 落地页） */
:root{
  --brand:#0e5a63;
  --brand2:#12808c;
  --gold:#c9a227;
  --cta:#ff7a2f;
  --cta-dark:#e8641a;
  --ink:#1f2d3d;
  --muted:#6b7c8c;
  --line:#e6ecf1;
  --bg:#f7fafb;
  --wa:#25D366;
  --wx:#07C160;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  color:var(--ink);background:#fff;line-height:1.7;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{max-width:1100px;margin:0 auto;padding:0 20px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:15px 30px;border-radius:50px;
  font-size:16px;font-weight:600;border:0;cursor:pointer;transition:.2s;line-height:1.2}
.btn-cta{background:var(--cta);color:#fff;box-shadow:0 8px 22px rgba(255,122,47,.35)}
.btn-cta:hover{background:var(--cta-dark);transform:translateY(-1px)}
.btn-wa{background:var(--wa);color:#fff;box-shadow:0 8px 22px rgba(37,211,102,.28)}
.btn-wa:hover{filter:brightness(.95)}
.btn-ghost{background:#fff;color:var(--brand);border:2px solid #fff}
.btn-outline{background:transparent;color:#fff;border:2px solid rgba(255,255,255,.7)}
.btn-outline:hover{background:rgba(255,255,255,.12)}
.btn-sm{padding:10px 20px;font-size:14px}

/* 顶部条 */
.topbar{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);backdrop-filter:blur(6px);
  border-bottom:1px solid var(--line)}
.topbar .in{display:flex;align-items:center;justify-content:space-between;height:62px}
.brand{display:flex;align-items:center;gap:10px;min-width:0;flex:1 1 auto}
.brand .txt{min-width:0}
.brand .mark{width:38px;height:38px;border-radius:10px;background:linear-gradient(135deg,var(--brand),var(--brand2));
  color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;flex:0 0 auto}
.brand .txt b{display:block;font-size:15px;letter-spacing:.3px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand .txt span{display:block;font-size:11px;color:var(--muted);letter-spacing:.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar .acts{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.topbar .tel{font-size:13px;color:var(--muted);display:none}

/* 语言切换 */
.langbtn{display:inline-flex;align-items:center;gap:5px;background:#f2f6f8;border:1px solid var(--line);
  border-radius:20px;padding:7px 13px;cursor:pointer;font-size:13px;color:var(--muted)}
.langbtn:hover{border-color:var(--brand2);color:var(--brand)}
.langbtn .gl{font-size:13px}
.langbtn b{font-weight:600}
.langbtn i{font-style:normal;color:#c3ced8;margin:0 1px}
.langbtn b.on{color:var(--brand)}

/* Hero */
.hero{background:linear-gradient(135deg,#0b3b44 0%,#0e5a63 55%,#12798a 100%);color:#fff;padding:56px 0 64px;position:relative;overflow:hidden}
.hero:before{content:"";position:absolute;right:-120px;top:-80px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(201,162,39,.28),transparent 65%)}
.hero .grid{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center;position:relative;z-index:2}
.badge-patent{display:inline-flex;align-items:center;gap:8px;background:rgba(201,162,39,.18);border:1px solid rgba(201,162,39,.55);
  color:#f4dfa0;padding:6px 14px;border-radius:50px;font-size:13px;margin-bottom:18px}
.hero h1{font-size:40px;line-height:1.25;margin:0 0 16px;font-weight:800;letter-spacing:.5px}
.hero h1 em{font-style:normal;color:#ffd479}
.hero .lead{font-size:17px;color:rgba(255,255,255,.9);margin:0 0 12px}
.hero .lead b{color:#ffd479}
.hero .sub{font-size:15px;color:rgba(255,255,255,.78);margin:0 0 26px}
.hero .btns{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:22px}
.hero .note{font-size:13px;color:rgba(255,255,255,.7)}
.trust{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:34px;
  border-top:1px solid rgba(255,255,255,.18);padding-top:22px}
.trust div{text-align:center}
.trust b{display:block;font-size:22px;color:#ffd479}
.trust span{font-size:12px;color:rgba(255,255,255,.75)}

/* 预约卡（hero 右侧） */
.card-form{background:#fff;border-radius:16px;padding:26px 24px;color:var(--ink);box-shadow:0 24px 60px rgba(0,0,0,.25)}
.card-form h3{margin:0 0 4px;font-size:19px}
.card-form .tip{font-size:12.5px;color:var(--muted);margin-bottom:16px}
.field{margin-bottom:12px}
.field input,.field select,.field textarea{width:100%;padding:12px 14px;border:1px solid #dfe6ec;border-radius:9px;
  font-size:14px;font-family:inherit;outline:none;background:#fbfdfd}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--brand2);background:#fff}
.field textarea{height:74px;resize:none}
.card-form .btn{width:100%;padding:14px}
.form-note{font-size:11.5px;color:var(--muted);margin-top:10px;text-align:center}

/* 通用小节 */
section{padding:60px 0}
.sec-head{text-align:center;margin-bottom:38px}
.sec-tag{display:inline-block;font-size:12px;letter-spacing:2px;color:var(--brand2);font-weight:700;margin-bottom:8px}
.sec-head h2{font-size:29px;margin:0 0 10px;font-weight:800}
.sec-head p{margin:0;color:var(--muted);font-size:15px}
.bg-gray{background:var(--bg)}

/* 痛点 */
.pain{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.pain .p{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px 18px;text-align:center;
  box-shadow:0 4px 16px rgba(16,42,67,.05)}
.pain .p .ic{font-size:30px;margin-bottom:8px}
.pain .p b{display:block;font-size:16px;margin-bottom:6px}
.pain .p span{font-size:13.5px;color:var(--muted)}

/* 五步 */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;position:relative}
.step{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px 16px;position:relative;
  box-shadow:0 4px 16px rgba(16,42,67,.05)}
.step .num{width:34px;height:34px;border-radius:50%;background:var(--brand);color:#fff;display:flex;align-items:center;
  justify-content:center;font-weight:700;margin-bottom:12px}
.step.core{border-color:var(--gold);box-shadow:0 8px 26px rgba(201,162,39,.2)}
.step.core .num{background:var(--gold)}
.step h4{margin:0 0 8px;font-size:17px}
.step p{margin:0 0 10px;font-size:13.5px;color:var(--muted);min-height:72px}
.tags{display:flex;flex-wrap:wrap;gap:6px}
.tags span{font-size:11.5px;background:#eef6f6;color:var(--brand);padding:3px 9px;border-radius:20px}

/* 优势 */
.adv{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.adv .a{background:#fff;border-radius:14px;padding:24px 20px;border:1px solid var(--line)}
.adv .a .ic{font-size:28px}
.adv .a b{display:block;margin:8px 0 6px;font-size:17px}
.adv .a p{margin:0;font-size:13.5px;color:var(--muted)}

/* 适应症 */
.inds{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.ind{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px;display:flex;gap:12px;align-items:flex-start}
.ind .ic{font-size:24px;line-height:1}
.ind b{display:block;font-size:15px;margin-bottom:3px}
.ind span{font-size:13px;color:var(--muted)}
.fit{background:#fff;border:1px dashed var(--gold);border-radius:14px;padding:22px 26px;margin-top:26px}
.fit b{color:var(--brand)}
.fit ul{margin:10px 0 0;padding:0;list-style:none;display:grid;grid-template-columns:repeat(2,1fr);gap:8px 24px}
.fit li{font-size:14px;color:#40525f}
.fit li:before{content:"✓";color:var(--brand2);font-weight:700;margin-right:8px}

/* 专家 */
.experts{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.exp{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;display:flex;flex-direction:column}
.exp .hd{display:flex;gap:16px;padding:22px;align-items:center;background:linear-gradient(120deg,#0b3b44,#12798a);color:#fff}
.exp .av{width:74px;height:74px;border-radius:50%;background:rgba(255,255,255,.16);display:flex;align-items:center;
  justify-content:center;font-size:30px;font-weight:700;flex:0 0 auto;border:2px solid rgba(255,255,255,.35)}
.exp .hd b{font-size:20px}
.exp .hd .t{font-size:13px;color:#cfe9ec;display:block;margin-top:2px}
.exp ul{margin:0;padding:18px 22px 22px;list-style:none}
.exp li{font-size:14px;color:#40525f;padding-left:18px;position:relative;margin-bottom:7px}
.exp li:before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:50%;background:var(--brand2)}

/* 案例 */
.cases{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.case{background:#fff;border:1px solid var(--line);border-radius:14px;padding:0;overflow:hidden}
.case .th{background:linear-gradient(135deg,#0e5a63,#17a2b8);color:#fff;padding:16px 20px;font-weight:600;font-size:16px;
  display:flex;justify-content:space-between;align-items:center}
.case .th small{font-weight:400;font-size:12px;opacity:.85}
.case .bd{padding:18px 20px}
.case .bd dl{margin:0}
.case .bd dt{font-size:12px;color:var(--brand2);font-weight:700;margin-top:12px}
.case .bd dt:first-child{margin-top:0}
.case .bd dd{margin:2px 0 0;font-size:13.8px;color:#40525f}
.case .bd .res{background:#f0f9f6;border-left:3px solid var(--brand2);padding:10px 12px;border-radius:0 8px 8px 0;
  margin-top:14px;font-size:14px;color:#0e5a63;font-weight:600}

/* 荣誉时间线 */
.tl{max-width:820px;margin:0 auto;position:relative;padding-left:34px}
.tl:before{content:"";position:absolute;left:10px;top:6px;bottom:6px;width:2px;background:var(--line)}
.tl .it{position:relative;margin-bottom:26px}
.tl .it:before{content:"";position:absolute;left:-29px;top:6px;width:14px;height:14px;border-radius:50%;
  background:var(--gold);border:3px solid #fff;box-shadow:0 0 0 2px rgba(201,162,39,.35)}
.tl .it b{display:block;font-size:16px}
.tl .it .y{font-size:12px;color:var(--gold);font-weight:700;margin-bottom:2px}
.tl .it p{margin:4px 0 0;font-size:14px;color:var(--muted)}

/* FAQ */
.faq{max-width:820px;margin:0 auto}
.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:12px;padding:0 18px}
.faq summary{cursor:pointer;padding:16px 0;font-weight:600;font-size:16px;list-style:none;display:flex;justify-content:space-between;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"+";color:var(--brand2);font-size:22px;font-weight:400}
.faq details[open] summary:after{content:"–"}
.faq details p{margin:0 0 16px;font-size:14.5px;color:#4a5c6a}

/* 底部 CTA */
.final{background:linear-gradient(135deg,#0b3b44,#12798a);color:#fff;text-align:center;padding:64px 0}
.final h2{font-size:30px;margin:0 0 12px;font-weight:800}
.final p{color:rgba(255,255,255,.85);margin:0 0 26px}
.final .btns{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

footer{background:#0a2e35;color:#9fb3bb;padding:30px 0;font-size:13px}
footer .fx{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;align-items:center}
footer a{color:#cfe0e5}
.disc{background:#08262c;color:#7d939b;font-size:12px;padding:16px 0;line-height:1.8}

/* 悬浮咨询 dock */
.dock{position:fixed;right:18px;bottom:96px;z-index:80;display:flex;flex-direction:column;gap:12px}
.dock button,.dock a{width:54px;height:54px;border-radius:50%;border:0;cursor:pointer;color:#fff;display:flex;align-items:center;
  justify-content:center;box-shadow:0 8px 22px rgba(0,0,0,.2);position:relative;text-decoration:none;box-sizing:border-box}
.dock .wx{background:var(--wx)}
.dock .wa{background:var(--wa)}
.dock .chat{background:var(--cta);width:60px;height:60px}
.dock .chat.pulse:after{content:"";position:absolute;inset:-6px;border-radius:50%;border:2px solid rgba(255,122,47,.6);
  animation:pl 1.8s infinite}
@keyframes pl{0%{transform:scale(.9);opacity:.9}70%{transform:scale(1.25);opacity:0}100%{opacity:0}}
.dock svg{width:27px;height:27px;fill:#fff}
.dock .unread{position:absolute;top:-2px;right:-2px;background:#e74c3c;color:#fff;font-size:11px;min-width:19px;height:19px;
  border-radius:10px;display:none;align-items:center;justify-content:center;padding:0 5px;border:2px solid #fff}
.dock .unread.show{display:flex}
.dock .lb{position:absolute;right:64px;white-space:nowrap;background:#fff;color:var(--ink);font-size:12.5px;
  padding:5px 10px;border-radius:6px;box-shadow:0 4px 12px rgba(0,0,0,.12);opacity:0;pointer-events:none;transition:.2s}
.dock button:hover .lb,.dock a:hover .lb{opacity:1}

/* 聊天窗口 */
.cw{position:fixed;right:18px;bottom:96px;width:372px;max-width:calc(100vw - 28px);height:540px;max-height:calc(100vh - 130px);
  background:#fff;border-radius:16px;box-shadow:0 24px 60px rgba(0,0,0,.28);z-index:90;display:none;flex-direction:column;overflow:hidden}
.cw.open{display:flex}
.cw .ch{background:linear-gradient(120deg,#0b3b44,#12798a);color:#fff;padding:14px 16px;display:flex;justify-content:space-between;align-items:center}
.cw .ch b{font-size:15px;display:block}
.cw .ch span{font-size:11.5px;color:#bfe3e8}
.cw .ch .dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:#4ade80;margin-right:5px}
.cw .ch .dot.off{background:#cbd5e1}
.cw .ch button{background:transparent;border:0;color:#fff;font-size:22px;cursor:pointer;line-height:1}
.cw .cb{flex:1;overflow:auto;padding:16px;background:#f4f7f9}
.cw .row{display:flex;margin-bottom:12px}
.cw .row.me{justify-content:flex-end}
.cw .row.sys{justify-content:center}
.cw .bub{max-width:78%;padding:10px 13px;border-radius:12px;font-size:14px;line-height:1.65;white-space:pre-wrap;word-break:break-word}
.cw .row.you .bub{background:#fff;border:1px solid #e4eaef;border-bottom-left-radius:2px}
.cw .row.me .bub{background:var(--brand2);color:#fff;border-bottom-right-radius:2px}
.cw .row.sys .bub{background:#e9eff3;color:#7a8b9a;font-size:12px;text-align:center;max-width:92%}
.cw .mt{font-size:11px;color:#a4b0bc;margin:0 6px;align-self:flex-end}
.cw .start{padding:18px}
.cw .start .f{margin-bottom:10px}
.cw .start input,.cw .start textarea{width:100%;padding:11px 12px;border:1px solid #dfe6ec;border-radius:9px;font-size:14px;font-family:inherit;outline:none}
.cw .start textarea{height:66px;resize:none}
.cw .start .btn{width:100%;padding:12px;margin-top:4px}
.cw .cf{border-top:1px solid var(--line);padding:10px;display:flex;gap:8px;background:#fff}
.cw .cf textarea{flex:1;height:46px;resize:none;padding:10px 12px;border:1px solid #dfe6ec;border-radius:10px;
  font-size:14px;font-family:inherit;outline:none}
.cw .cf button{width:70px;background:var(--brand2);color:#fff;border:0;border-radius:10px;cursor:pointer;font-size:14px}
.cw .cf button:hover{background:var(--brand)}

/* 移动端底部条 */
.mbar{display:none;position:fixed;left:0;right:0;bottom:0;z-index:95;background:#fff;border-top:1px solid var(--line);
  padding:8px 10px;gap:8px;box-shadow:0 -4px 14px rgba(0,0,0,.06)}
.mbar a,.mbar button{flex:1;border:0;border-radius:10px;padding:12px 6px;font-size:14px;font-weight:600;cursor:pointer;
  display:flex;align-items:center;justify-content:center;gap:6px;color:#fff}
.mbar .m-chat{background:var(--cta)}
.mbar .m-wa{background:var(--wa)}
.mbar .m-wx{background:var(--wx)}

/* 弹窗 */
.mask{position:fixed;inset:0;background:rgba(8,25,32,.66);z-index:100;display:none;align-items:center;justify-content:center;padding:20px}
.mask.show{display:flex}
.modal{background:#fff;border-radius:16px;padding:26px;max-width:380px;width:100%;text-align:center;position:relative}
.modal h4{margin:0 0 14px;font-size:18px}
.modal img{width:100%;max-width:252px;height:auto;margin:0 auto 12px;border-radius:10px}
.modal .code{font-size:22px;font-weight:700;color:var(--wx);letter-spacing:1px;margin-bottom:6px}
.modal p{font-size:13px;color:var(--muted);margin:0 0 14px}
.modal .btn{width:100%;padding:12px}
.modal .x{position:absolute;right:12px;top:8px;border:0;background:transparent;font-size:24px;cursor:pointer;color:#9aa7b4}
.modal.long{max-width:640px;text-align:left;max-height:80vh;overflow:auto}
.modal.long h4{margin-bottom:10px}
.modal.long p{font-size:13.5px;color:#4a5c6a;line-height:1.8}

/* 响应式 */
@media (max-width:1000px){
  .hero .grid{grid-template-columns:1fr;gap:28px}
  .steps{grid-template-columns:repeat(2,1fr)}
  .adv,.inds,.pain{grid-template-columns:repeat(2,1fr)}
  .cases,.experts{grid-template-columns:1fr}
}
@media (max-width:900px){
  .brand .mark{width:34px;height:34px;font-size:14px}
  .brand .txt b{font-size:14px}
  .brand .txt span{display:none}
  .topbar .acts{gap:7px}
  .topbar .acts .btn-sm{padding:9px 12px;font-size:13px}
  .langbtn{padding:6px 10px;font-size:12px;gap:4px}
}
@media (max-width:640px){
  .topbar .in{height:56px}
  .brand .txt b{font-size:12.5px}
  .topbar .acts{gap:5px}
  .langbtn{padding:5px 8px;font-size:11.5px}
  .topbar .acts .btn-sm{padding:8px 9px;font-size:11.5px}
  .hero{padding:38px 0 44px}
  .hero h1{font-size:27px}
  .hero .lead{font-size:15.5px}
  .trust{grid-template-columns:repeat(2,1fr);gap:16px}
  section{padding:44px 0}
  .sec-head h2{font-size:23px}
  .pain,.adv,.inds{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .step p{min-height:0}
  .topbar .acts .btn-sm{padding:9px 14px;font-size:13px}
  .topbar .tel{display:none}
  .mbar{display:flex}
  .dock{bottom:74px;right:12px;gap:10px}
  .dock button{width:48px;height:48px}
  .dock .chat{width:54px;height:54px}
  .cw{right:8px;left:8px;bottom:74px;width:auto;height:70vh}
  body{padding-bottom:64px}
  .final h2{font-size:23px}
  .fit ul{grid-template-columns:1fr}
}

/* ===== 聊天图片 & 上传按钮 ===== */
.cw .bub img.cimg{max-width:78%;max-height:260px;border-radius:10px;display:block;margin:2px 0 4px;cursor:zoom-in;background:#f2f5f7}
.cw .row.me .bub img.cimg{background:rgba(255,255,255,.2)}
.cw .cf .upbtn{width:46px;min-width:46px;height:46px;background:#f1f5f8;border:1px solid #dfe6ec !important;color:#5a6b7c;
  border-radius:10px;display:flex;align-items:center;justify-content:center;cursor:pointer;padding:0}
.cw .cf .upbtn:hover{background:#e6f4f0;border-color:var(--brand2) !important;color:var(--brand2)}
.cw .cf .upbtn svg{pointer-events:none}