/* AI 搜索营销 /seo（SEO + GEO） */
.so-hero{padding:calc(var(--nav-h) + 44px) 0 22px;text-align:center}
.so-kicker{display:inline-block;font-size:12px;font-weight:800;letter-spacing:.16em;color:var(--primary);background:rgba(61,90,254,.08);border-radius:999px;padding:6px 14px}
.so-hero h1{font-size:30px;margin:14px 0 8px}
.so-hero h1 em{font-style:normal;background:var(--grad-text);-webkit-background-clip:text;background-clip:text;color:transparent}
.so-hero p{color:#6A6F8F;font-size:14.5px}

.so-tabs{display:flex;gap:12px;justify-content:center;margin:26px auto 0;max-width:560px}
.so-tabs button{flex:1;display:flex;align-items:center;gap:12px;text-align:left;background:#fff;border:1.5px solid #E8EAF3;border-radius:16px;padding:14px 18px;transition:all var(--dur-mid)}
.so-tabs button.cur{border-color:transparent;background:linear-gradient(135deg,#3D5AFE,#7C4DFF);box-shadow:var(--glow-l)}
.so-tabs button .so-tab-ic{font-size:22px}
.so-tabs button .so-tab-ic svg{width:22px;height:22px}
.so-tabs button span:last-child{display:flex;flex-direction:column}
.so-tabs button b{font-size:15px;color:#252B40}
.so-tabs button small{font-size:11.5px;color:#9AA1B5;margin-top:1px}
.so-tabs button.cur b,.so-tabs button.cur small{color:#fff}

.so-layout{display:grid;grid-template-columns:1fr 300px;gap:24px;align-items:start;padding-bottom:44px}
@media(max-width:900px){.so-layout{grid-template-columns:1fr}}
@media(max-width:520px){
  .so-hero{padding:calc(var(--nav-h) + 28px) 0 16px}
  .so-hero h1{font-size:24px;margin:10px 0 6px}
  .so-hero p{font-size:13px}
  .so-tabs{gap:8px;margin:18px auto 0}
  .so-tabs button{padding:11px 12px;gap:8px}
  .so-layout{padding-bottom:36px;gap:16px}
  .so-card{padding:18px 16px}
}
.so-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:24px;margin-bottom:18px}
.so-card-head{margin-bottom:20px}
.so-card-head h2{font-size:20px;margin:0}
.so-card-head p{font-size:13px;color:var(--ink-3);margin:6px 0 0}

.so-form{display:flex;flex-direction:column;gap:16px}
.so-field label{display:block;font-size:13px;font-weight:600;color:var(--ink-2);margin-bottom:7px}
.so-field label .req{color:var(--err)}
.so-field input,.so-field textarea{width:100%;box-sizing:border-box;border:1.5px solid #E3E6EF;background:#fff;border-radius:12px;padding:12px 14px;font-size:14px;transition:border-color var(--dur-mid),box-shadow var(--dur-mid);resize:vertical}
.so-field input:focus,.so-field textarea:focus{border-color:var(--primary);box-shadow:0 0 0 4px rgba(61,90,254,.08)}
.so-form-act{display:flex;align-items:center;justify-content:space-between;gap:12px}
.so-form-act .so-tip{font-size:12px;color:var(--ink-3)}
@media(max-width:520px){.so-form-act{flex-direction:column;align-items:stretch}.so-form-act .btn{width:100%}}

.so-report{margin-top:22px;border-top:1px dashed #E8EAF3;padding-top:20px}
.so-report-head{display:flex;align-items:center;gap:14px;margin-bottom:16px}
.so-score{width:56px;height:56px;border-radius:14px;background:linear-gradient(135deg,#3D5AFE,#7C4DFF);color:#fff;display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:800;flex:none}
.so-report-head b{font-size:16px}
.so-report-head small{display:block;font-size:12px;color:var(--ink-3);margin-top:2px}
.so-report-body{font-size:14px;line-height:1.85;color:#3A4157}
.so-report-body h1,.so-report-body h2,.so-report-body h3{margin:16px 0 8px;font-size:16px}
.so-report-body p{margin:8px 0}
.so-report-body ul,.so-report-body ol{padding-left:1.4em;margin:8px 0}
.so-report-body li{margin:4px 0}
.so-report-body code{display:inline-block;background:#F3F5FB;border:1px solid #E5E8F2;border-radius:6px;padding:1px 7px;font-size:12.5px;color:#D63384;font-family:var(--mono);word-break:break-all}
.so-report-body blockquote{border-left:3px solid var(--primary);background:rgba(61,90,254,.05);padding:8px 14px;border-radius:0 10px 10px 0;color:var(--ink-2);margin:10px 0}
.so-report-body input[type=checkbox]{margin-right:6px}

.so-side-card h3{font-size:15px;margin:0 0 10px}
.so-side-p{font-size:13px;color:var(--ink-2);line-height:1.8}
.so-side-list{display:flex;flex-direction:column;gap:8px}
.so-side-list li{font-size:13px;color:var(--ink-2);line-height:1.7;padding-left:14px;position:relative}
.so-side-list li::before{content:'';position:absolute;left:0;top:8px;width:6px;height:6px;border-radius:50%;background:var(--primary)}
.so-hist-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border:1px solid #EDEFF6;border-radius:12px;margin-bottom:8px;transition:all var(--dur-mid)}
.so-hist-item:hover{border-color:rgba(61,90,254,.4)}
.so-hist-item .so-hist-mode{font-size:12px;font-weight:700;color:#fff;background:linear-gradient(135deg,#3D5AFE,#7C4DFF);border-radius:6px;padding:2px 7px;flex:none}
.so-hist-item .so-hist-mode.geo{background:linear-gradient(135deg,#0FB37B,#00B4FF)}
.so-hist-item .so-hist-t{flex:1;min-width:0}
.so-hist-item .so-hist-t b{display:block;font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.so-hist-item .so-hist-t small{font-size:11.5px;color:#9AA1B5}
.so-hist-item .so-hist-score{font-size:15px;font-weight:800;color:var(--primary);flex:none}
.so-muted{font-size:13px;color:#9AA1B5}

/* v1.70.10 移动端底部留白收敛 */
@media(max-width:640px){.so-layout{padding-bottom:16px}}