/* ============ 基础 ============ */
:root{
  --green:#0a8f5c;
  --green-dark:#077a4d;
  --green-soft:#e9f7f1;
  --green-line:#c9ead9;
  --red:#e0413b;
  --text:#171c1a;
  --text-2:#4a5450;
  --muted:#8b948f;
  --line:#eceeed;
  --bg:#f4f6f5;
  --card:#ffffff;
  --radius:16px;
  --shadow:0 2px 10px rgba(20,40,32,.05);
  --shadow-lg:0 10px 30px rgba(20,40,32,.10);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
[hidden]{display:none !important}
html,body{margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg);color:var(--text);font-size:15px;line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
button{font-family:inherit;cursor:pointer}
input,select{font-family:inherit}
h1,h2,h3{margin:0;font-weight:700}
.muted{color:var(--muted);font-size:13px;margin:6px 0 0}

/* ============ 顶栏 ============ */
.topbar{
  position:sticky;top:0;z-index:40;
  background:rgba(255,255,255,.92);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.topbar-inner{
  max-width:1160px;margin:0 auto;height:56px;padding:0 18px;
  display:flex;align-items:center;justify-content:space-between;
}
.brand{display:flex;align-items:center;gap:9px;font-weight:800;font-size:17px;letter-spacing:.3px}
.brand-dot{
  width:22px;height:22px;border-radius:7px;display:inline-block;
  background:linear-gradient(135deg,#12b877,#0a8f5c);
  box-shadow:0 3px 8px rgba(10,143,92,.35);position:relative;
}
.brand-dot::after{content:"";position:absolute;inset:6px;border-radius:50%;border:2px solid #fff}
.brand-name{color:var(--text)}
.topbar-link{color:var(--green);text-decoration:none;font-size:13.5px;font-weight:600;
  padding:7px 13px;border-radius:99px;background:var(--green-soft);border:1px solid var(--green-line)}
.topbar-link:hover{background:#dff2e9}

/* ============ 布局 ============ */
.page{
  max-width:1160px;margin:0 auto;padding:26px 18px 40px;
  display:grid;grid-template-columns:minmax(0,1fr) 500px;gap:44px;align-items:start;
}
.intro{padding-top:22px}
.intro-title{font-size:38px;line-height:1.28;letter-spacing:-.5px}
.intro-sub{color:var(--text-2);font-size:15.5px;margin:18px 0 24px;max-width:420px}
.intro-list{list-style:none;padding:0;margin:0 0 32px;display:grid;gap:12px}
.intro-list li{color:var(--text-2);font-size:14.5px;padding-left:26px;position:relative}
.intro-list li::before{
  content:"";position:absolute;left:0;top:6px;width:16px;height:16px;border-radius:50%;
  background:var(--green-soft);border:1.5px solid var(--green);
}
.intro-list li::after{
  content:"";position:absolute;left:5px;top:11px;width:6px;height:3px;
  border-left:1.5px solid var(--green);border-bottom:1.5px solid var(--green);transform:rotate(-45deg);
}
.intro-list b{color:var(--green-dark)}
.intro-steps{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.intro-steps .step{
  background:#fff;border:1px solid var(--line);border-radius:12px;padding:11px 14px;
  font-size:13.5px;color:var(--text-2);display:flex;align-items:center;gap:8px;box-shadow:var(--shadow)
}
.intro-steps .step i{
  font-style:normal;width:19px;height:19px;border-radius:50%;background:var(--green);color:#fff;
  font-size:11.5px;display:grid;place-items:center;font-weight:700
}
.step-arrow{width:14px;height:1.5px;background:#cdd6d1}

/* ============ 面板 / 卡片 ============ */
.panel{min-width:0}
.stepper{
  display:flex;gap:8px;background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:10px;margin-bottom:14px;box-shadow:var(--shadow)
}
.stepper-item{
  flex:1;text-align:center;font-size:13.5px;color:var(--muted);padding:7px 4px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;gap:7px;transition:.2s
}
.stepper-item span{
  width:19px;height:19px;border-radius:50%;background:#eef1f0;color:#9aa4a0;font-size:11.5px;
  display:grid;place-items:center;font-weight:700
}
.stepper-item.is-active{background:var(--green-soft);color:var(--green-dark);font-weight:700}
.stepper-item.is-active span{background:var(--green);color:#fff}

.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px;box-shadow:var(--shadow);animation:fadeUp .28s ease
}
@keyframes fadeUp{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.card+.card{margin-top:14px}
.card-head h2{font-size:18px}
.sec-title{font-size:14.5px;color:var(--text-2);margin:22px 0 10px;font-weight:700}
.sec-title:first-of-type{margin-top:18px}

/* ============ 上传 ============ */
.uploader{
  margin-top:16px;border:1.6px dashed #cfd8d3;border-radius:14px;background:#fbfcfb;
  min-height:210px;display:flex;align-items:center;justify-content:center;
  position:relative;overflow:hidden;transition:.2s;cursor:pointer
}
.uploader:hover{border-color:var(--green);background:#f7fdfa}
.uploader-inner{text-align:center;padding:28px}
.up-icon{width:58px;height:58px;border-radius:50%;background:var(--green-soft);color:var(--green);
  display:grid;place-items:center;margin:0 auto 12px}
.up-title{font-weight:700;font-size:15.5px}
.up-tip{color:var(--muted);font-size:12.5px;margin-top:5px}
.preview-img{max-height:280px;width:auto;border-radius:10px}
.uploader-actions{display:flex;gap:10px;margin-top:12px}
.uploader-actions .btn{flex:1}
.manual-box{display:flex;align-items:center;gap:10px;margin-top:14px}
.manual-label{font-size:13.5px;color:var(--muted);white-space:nowrap}

/* ============ 表单控件 ============ */
.select{
  width:100%;border:1px solid #e2e7e4;background:#fafbfa;border-radius:11px;
  padding:11px 12px;font-size:14.5px;color:var(--text);outline:none;transition:.18s;
  appearance:none;background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'><path d='M2 4l4 4 4-4' stroke='%239aa4a0' stroke-width='1.5' fill='none' stroke-linecap='round'/></svg>");
  background-repeat:no-repeat;background-position:right 12px center;
}
input.select{background-image:none}
input.select[type=date]{background-image:none}
.select:focus{border-color:var(--green);background:#fff;box-shadow:0 0 0 3px rgba(10,143,92,.10)}
.field{margin-top:14px}
.field-label{display:block;font-size:13.5px;color:var(--text-2);margin-bottom:8px;font-weight:600}
.field-label i{color:var(--red);font-style:normal}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.field-row.three{grid-template-columns:1fr 1fr 1fr}

.chips{display:flex;gap:9px;flex-wrap:wrap}
.chip{
  border:1px solid #e2e7e4;background:#fafbfa;border-radius:10px;padding:9px 16px;
  font-size:14px;color:var(--text-2);transition:.18s
}
.chip:hover{border-color:var(--green-line)}
.chip.is-on{background:var(--green-soft);border-color:var(--green);color:var(--green-dark);font-weight:700}

.switch-list{display:grid;gap:10px}
.switch-row{
  display:flex;align-items:center;justify-content:space-between;
  background:#fafbfa;border:1px solid #eef1ef;border-radius:11px;padding:9px 12px;font-size:14px
}
.seg{display:inline-flex;background:#eef1f0;border-radius:9px;padding:3px;gap:2px}
.seg button{
  border:0;background:transparent;padding:6px 16px;border-radius:7px;font-size:13.5px;color:var(--muted);transition:.18s
}
.seg button.is-on{background:#fff;color:var(--green-dark);font-weight:700;box-shadow:0 1px 4px rgba(0,0,0,.08)}

/* ============ 识别结果 ============ */
.watch-head{display:flex;gap:14px;align-items:center;padding-bottom:16px;border-bottom:1px solid var(--line)}
.watch-thumb{width:76px;height:76px;border-radius:12px;object-fit:cover;background:#f1f3f2;flex:none;border:1px solid var(--line)}
.watch-meta{min-width:0}
.watch-brand{font-size:17px;font-weight:800;letter-spacing:.2px}
.watch-series{color:var(--text-2);font-size:14px;margin-top:2px}
.watch-ref{color:var(--muted);font-size:13px;margin-top:4px}
.watch-ref b{color:var(--text)}
.badge{
  display:inline-block;margin-top:7px;font-size:11.5px;font-weight:700;
  background:var(--green-soft);color:var(--green-dark);padding:3px 9px;border-radius:99px;border:1px solid var(--green-line)
}
.badge.warn{background:#fff6e8;color:#b7791f;border-color:#f3e0bd}
.badge.src{background:#eef4ff;color:#1f6feb;border-color:#d6e4ff}
.watch-badges{display:flex;gap:6px;flex-wrap:wrap;margin-top:7px}
.watch-badges .badge{margin-top:0}

/* AI 识别到的腕表参数 */
.ai-params{margin-top:15px;display:flex;flex-wrap:wrap;gap:8px}
.param{
  background:#fafbfa;border:1px solid #eef1ef;border-radius:9px;padding:6px 11px;
  font-size:12.5px;color:var(--muted)
}
.param b{color:var(--text);font-weight:700;margin-left:4px}

/* 候选表款 */
.candidates{margin-top:15px;background:#f8fafc;border:1px solid #e7edf3;border-radius:12px;padding:12px 13px}
.cand-title{font-size:12.5px;color:var(--muted);margin-bottom:9px}
.cand-list{display:flex;flex-direction:column;gap:7px}
.cand-item{
  display:flex;align-items:center;justify-content:space-between;gap:10px;width:100%;
  background:#fff;border:1px solid #e7edf3;border-radius:9px;padding:9px 11px;
  font-size:13px;text-align:left;color:var(--text);transition:.16s
}
.cand-item:hover{border-color:var(--green);background:#f7fdfa}
.cand-item.is-on{border-color:var(--green);background:var(--green-soft)}
.cand-item .ci-name{font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.cand-item .ci-price{color:var(--green-dark);font-weight:800;flex:none}

/* 行情涨跌（国内习惯：涨红跌绿） */
.price-trend{margin-top:10px;font-size:12.5px;color:var(--muted);display:flex;align-items:center;gap:6px}
.price-trend .up{color:var(--red);font-weight:700}
.price-trend .down{color:var(--green-dark);font-weight:700}

.alert{
  margin-top:14px;background:#fff7ed;border:1px solid #f6dfc2;color:#9a6212;
  border-radius:11px;padding:11px 13px;font-size:13px;line-height:1.5
}

.price-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.price-item{
  background:#fafbfa;border:1px solid #eef1ef;border-radius:12px;padding:12px 13px
}
.price-item .pi-label{font-size:12.5px;color:var(--muted);display:flex;align-items:center;gap:5px}
.price-item .pi-value{font-size:17px;font-weight:800;margin-top:5px;letter-spacing:-.2px}
.price-item.hl{background:var(--green-soft);border-color:var(--green-line)}
.price-item.hl .pi-value{color:var(--green-dark)}
.price-item.full{grid-column:1 / -1}
.pi-tag{font-size:10.5px;background:#fdece9;color:var(--red);padding:2px 6px;border-radius:5px;font-weight:700}

/* ============ 报价卡 ============ */
.quote-card{
  margin-top:22px;border-radius:15px;padding:18px;color:#fff;
  background:linear-gradient(135deg,#0fa968,#077a4d);
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  box-shadow:0 10px 24px rgba(10,143,92,.28)
}
.quote-label{font-size:13px;opacity:.9}
.quote-value{font-size:34px;font-weight:800;letter-spacing:-1px;line-height:1.1;margin-top:2px}
.quote-value small{font-size:17px;font-weight:700;margin-right:2px}
.quote-sub{font-size:12px;opacity:.9;margin-top:3px}
.quote-right{text-align:right;flex:none;border-left:1px solid rgba(255,255,255,.25);padding-left:14px}
.quote-peer-label{font-size:12px;opacity:.85}
.quote-peer{font-size:17px;font-weight:800;margin-top:4px}
.quote-detail{margin-top:12px;display:grid;gap:6px}
.qd-row{display:flex;justify-content:space-between;font-size:13px;color:var(--text-2);
  padding:7px 11px;background:#fafbfa;border:1px solid #eef1ef;border-radius:9px}
.qd-row b{color:var(--text)}
.qd-row .up{color:var(--green-dark)}
.qd-row .down{color:var(--red)}

/* ============ 按钮 ============ */
.btn{
  border:0;border-radius:12px;padding:13px 20px;font-size:15.5px;font-weight:700;
  transition:.18s;display:inline-flex;align-items:center;justify-content:center;gap:7px
}
.btn-primary{background:var(--green);color:#fff;box-shadow:0 6px 16px rgba(10,143,92,.28)}
.btn-primary:hover{background:var(--green-dark)}
.btn-primary:active{transform:translateY(1px)}
.btn-primary:disabled{background:#b9c9c2;box-shadow:none;cursor:not-allowed}
.btn-ghost{background:#fff;color:var(--text-2);border:1px solid #e2e7e4}
.btn-ghost:hover{border-color:var(--green-line);color:var(--green-dark)}
.btn-block{width:100%;margin-top:16px}
.btn-sm{padding:8px 14px;font-size:13.5px;border-radius:9px}
.btn-row{display:flex;gap:12px;margin-top:16px}
.btn-row .btn{flex:1}

/* ============ 订单 ============ */
.order-summary{
  margin-top:16px;background:var(--green-soft);border:1px solid var(--green-line);
  border-radius:12px;padding:13px 15px;font-size:14px;color:var(--green-dark)
}
.order-summary .os-price{font-size:20px;font-weight:800;color:var(--green-dark)}
.agree{display:flex;gap:9px;align-items:flex-start;margin-top:16px;font-size:12.8px;color:var(--muted)}
.agree input{margin-top:2px;accent-color:var(--green);width:16px;height:16px}

/* ============ 成功 ============ */
.success{text-align:center;padding:36px 22px}
.success-icon{width:72px;height:72px;border-radius:50%;background:var(--green-soft);color:var(--green);
  display:grid;place-items:center;margin:0 auto 16px}
.success h2{font-size:20px}
.success .btn-block{margin-top:22px}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:26px;padding:24px 0 8px;text-align:center;border-top:1px solid var(--line)
}
.footer-logo{height:34px;width:auto;margin:0 auto 10px;opacity:.92}
.footer-text{font-size:12.5px;color:var(--muted)}
.footer-copy{font-size:11.5px;color:#b3bbb7;margin-top:4px}

/* ============ loading / toast ============ */
.loading-mask{
  position:fixed;inset:0;z-index:60;background:rgba(246,248,247,.86);backdrop-filter:blur(4px);
  display:grid;place-items:center
}
.loading-box{background:#fff;border-radius:18px;padding:30px 34px;text-align:center;box-shadow:var(--shadow-lg);min-width:250px}
.spinner{
  width:44px;height:44px;border-radius:50%;margin:0 auto 16px;
  border:3.5px solid var(--green-soft);border-top-color:var(--green);animation:spin .8s linear infinite
}
@keyframes spin{to{transform:rotate(360deg)}}
.loading-text{font-weight:700;font-size:15px}
.loading-sub{color:var(--muted);font-size:12.5px;margin-top:5px}

/* ============ 反馈弹窗 ============ */
.btn-feedback{flex:0 0 auto !important;padding-left:20px;padding-right:20px}

.fb-mask{
  position:fixed;inset:0;z-index:70;background:rgba(18,28,24,.5);
  display:flex;align-items:center;justify-content:center;padding:18px
}
.fb-box{
  background:#fff;border-radius:18px;width:100%;max-width:430px;max-height:88vh;
  display:flex;flex-direction:column;box-shadow:var(--shadow-lg);animation:fadeUp .18s ease
}
.fb-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;
  padding:18px 20px 12px;border-bottom:1px solid var(--line)}
.fb-head h3{margin:0;font-size:16.5px}
.fb-sub{margin:5px 0 0;font-size:12.5px;color:var(--muted);line-height:1.55}
.fb-close{border:0;background:none;font-size:24px;line-height:1;color:var(--muted);cursor:pointer;
  padding:0 2px;flex:none}
.fb-close:hover{color:var(--text)}
.fb-current{margin:12px 20px 0;background:#f6faf8;border:1px solid var(--green-line);
  border-radius:11px;padding:10px 12px;font-size:13px;color:var(--text-2);line-height:1.6}
.fb-current b{color:var(--green-dark)}
.fb-body{padding:14px 20px 4px;overflow:auto}
.fb-label{display:block;font-size:12.5px;color:var(--muted);font-weight:700;margin:12px 0 7px}
.fb-body .fb-label:first-child{margin-top:0}
.fb-chips{display:flex;gap:8px;flex-wrap:wrap}
.fb-chip{
  border:1px solid var(--line);background:#fff;border-radius:99px;padding:7px 14px;
  font-size:13px;color:var(--text-2);cursor:pointer;font-family:inherit
}
.fb-chip.is-on{background:var(--green-soft);border-color:var(--green);color:var(--green-dark);font-weight:700}
.fb-field[hidden]{display:none !important}
.fb-two-col{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.fb-two-col .fb-label{margin-top:12px}
.fb-two-col .fb-input{padding:10px 11px;font-size:13.5px}
.fb-input,.fb-textarea{
  width:100%;border:1px solid #e2e7e4;background:#fafbfa;border-radius:11px;
  padding:11px 12px;font-size:14px;font-family:inherit;outline:none;color:var(--text)
}
.fb-input:focus,.fb-textarea:focus{border-color:var(--green);background:#fff}
.fb-textarea{resize:vertical;min-height:74px;line-height:1.6}
.fb-actions{display:flex;gap:10px;padding:14px 20px 18px;border-top:1px solid var(--line)}
.fb-actions .btn{flex:1}

.toast{
  position:fixed;left:50%;bottom:44px;transform:translateX(-50%);z-index:80;
  background:#1d2622;color:#fff;padding:11px 20px;border-radius:11px;font-size:14px;
  box-shadow:var(--shadow-lg);animation:fadeUp .2s ease;max-width:86vw;text-align:center
}

/* ============ 响应式 ============ */
@media (max-width:980px){
  .page{grid-template-columns:1fr;gap:0;padding:16px 14px 32px}
  .intro{display:none}
  .panel{max-width:560px;margin:0 auto;width:100%}
}
@media (max-width:420px){
  .card{padding:17px 15px}
  .price-grid{gap:8px}
  .price-item .pi-value{font-size:16px}
  .quote-value{font-size:30px}
  .field-row.three{grid-template-columns:1fr 1fr}
  .field-row.three .field:last-child{grid-column:1 / -1}
  .topbar-inner{padding:0 14px}
}