*{box-sizing:border-box}body{margin:0;background:#f5f7fb;color:#15243e;font-family:Inter,"Microsoft YaHei","PingFang SC",sans-serif;font-size:14px}button,input,textarea{font:inherit}a{color:inherit;text-decoration:none}header,footer{max-width:1240px;margin:auto;display:flex;justify-content:space-between;align-items:center;padding:27px 36px}.brand{display:flex;align-items:center;gap:12px}.brand img{width:38px;height:38px}.brand b{font-size:21px;letter-spacing:2px}.brand span{color:#748094;border-left:1px solid #d6dce5;padding-left:16px;margin-left:6px;font-size:12px}header>a:last-child{font-size:13px;color:#59677e}main{max-width:1168px;margin:38px auto 0;padding:0 20px}#input-page{display:grid;grid-template-columns:1fr 1fr;gap:42px 64px}.hero{padding:30px 0}.eyebrow{font-size:11px;letter-spacing:2.6px;color:#326cf6;font-weight:700}h1{font-size:55px;line-height:1.3;letter-spacing:-2px;margin:27px 0 22px;font-weight:800}h1 span{color:#3678ff}.hero>p{font-size:16px;line-height:1.9;color:#748094}.platforms{display:flex;flex-wrap:wrap;gap:9px;margin-top:30px}.platforms span{border:1px solid #dce2ec;background:#fff8;padding:9px 13px;border-radius:7px;font-size:12px}.hero-bottom{display:flex;align-items:center;gap:20px;margin-top:60px;color:#3678ff;font-weight:700}.hero-bottom i{font-size:12px;font-style:normal;color:#6d7990;font-weight:400;margin-left:7px}.line{width:40px;height:1px;background:#cbd6e8}.form-card{background:white;padding:30px 34px;border-radius:18px;box-shadow:0 16px 65px #263e7010;border:1px solid #e6ebf3}.card-top{font-size:11px;color:#66748c;display:flex;align-items:center;gap:7px}.dot{width:7px;height:7px;background:#3779ff;border-radius:50%}.step{margin-left:auto;font-size:10px;letter-spacing:1px;color:#9aa6b7}h2{font-size:24px;margin:28px 0 9px}.muted{font-size:12px;color:#8a95a7;margin-bottom:26px}label{display:block;font-size:12px;font-weight:600;margin:0 0 10px}em{font-size:10px;font-style:normal;color:#95a2b7;font-weight:400;margin-left:6px}textarea,input{width:100%;background:#fafbfe;border:1px solid #dce3ee;border-radius:8px;padding:13px;color:#243550;outline:none;resize:vertical}textarea:focus,input:focus{border-color:#3678ff;box-shadow:0 0 0 3px #3678ff10}textarea::placeholder{color:#a1acbb;font-size:12px;line-height:1.8}.chips{display:flex;gap:7px;flex-wrap:wrap;margin:11px 0 23px}.chips button{border:0;background:#f1f5fb;color:#6b7b94;border-radius:4px;padding:5px 8px;font-size:10px;cursor:pointer}.fields{display:grid;grid-template-columns:1fr 1fr;gap:15px}.primary{background:#2768ee;border:0;color:white;padding:16px 20px;border-radius:8px;cursor:pointer;font-weight:600}.primary:hover{background:#1756d4}.primary:disabled{opacity:.6;cursor:wait}#submit{display:flex;justify-content:space-between;width:100%;margin-top:25px}.hint{font-size:10px;line-height:1.8;color:#929db0;margin:15px 0 0}#status{color:#346be0;font-size:12px;line-height:1.6}.principles{grid-column:1/-1;display:grid;grid-template-columns:repeat(3,1fr);padding:25px 0 35px;border-top:1px solid #e0e6ef}.principles>div{display:flex;align-items:center;gap:22px}.principles b{font-size:28px;color:#2d6de7}.principles span{font-size:12px;line-height:1.9}.principles small{color:#929db0;font-size:10px}footer{border-top:1px solid #e0e6ef;color:#8d99aa;font-size:11px;margin-top:30px}.result-nav{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}.result-nav>button:first-child{border:0;background:none;color:#607089;cursor:pointer}#report{background:#fff;border:1px solid #e2e8f2;border-radius:16px;overflow:hidden}.report-head{padding:34px 36px;background:#152b51;color:white}.report-head .eyebrow{color:#93b7ff}.report-head h1{font-size:32px;letter-spacing:0;margin:16px 0}.report-head p{color:#b6c6dd;line-height:1.8}.meta{display:flex;gap:10px;flex-wrap:wrap;font-size:12px}.meta span{padding:8px 12px;background:#ffffff10;border-radius:5px}.report-body{padding:30px 36px}.notice{background:#fff7e8;color:#8a6326;padding:13px 17px;border-radius:7px;font-size:12px;line-height:1.8}.report-body h2{font-size:19px;margin:28px 0 16px}.table-wrap{overflow:auto}table{border-collapse:collapse;width:100%;min-width:650px;text-align:left}th{font-size:11px;color:#8b96a8;font-weight:400;padding:13px;background:#f6f8fc}td{padding:18px 13px;border-bottom:1px solid #e9edf4;font-size:12px;line-height:1.7}td:first-child{font-weight:700;width:130px}td strong{font-size:20px;color:#2866df;white-space:nowrap}td small{display:block;color:#8a96a8;font-weight:400;font-size:10px}.notes{display:grid;grid-template-columns:1fr 1fr;gap:26px}.notes li{line-height:1.9;color:#6c7890;font-size:12px;margin:8px 0}.notes ul{padding-left:18px}.report-foot{border-top:1px solid #e7ecf3;margin-top:22px;padding-top:18px;display:flex;align-items:center;gap:10px;color:#8a96a8;font-size:11px}.report-foot img{width:26px}#export-status{color:#607089;font-size:12px}[hidden]{display:none!important}@media(max-width:800px){header,footer{padding:20px}.brand span{display:none}main{margin-top:10px}#input-page{grid-template-columns:1fr;gap:20px}.hero{padding:10px 3px}h1{font-size:42px}.hero-bottom{margin-top:30px}.form-card{padding:25px 22px}.principles{gap:20px}.principles>div{display:block}.principles b{font-size:23px;display:block;margin-bottom:8px}.principles small{display:none}.report-head,.report-body{padding:24px 20px}.notes{grid-template-columns:1fr;gap:0}.report-head h1{font-size:26px}footer{gap:16px}}
/* Responsive refinement and branded report generation */
.hero h1{font-size:clamp(30px,3.6vw,49px);letter-spacing:-1.8px;line-height:1.4}.keep{white-space:nowrap;color:#15243e}#input-page{grid-template-columns:1.05fr 1fr;gap:36px}.hero>p{font-size:15px}.platforms{display:grid;grid-template-columns:repeat(3,max-content);gap:10px}.platforms span{display:flex;align-items:center;gap:8px;padding:10px 13px;background:#fff;border-radius:9px}.platforms img{height:22px;width:22px;object-fit:contain;border-radius:5px}.form-card{padding:28px}.region-field{border:0;padding:0;margin:0 0 22px;min-width:0}.region-field legend{font-size:12px;font-weight:600;margin-bottom:10px}.region-selects{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}select{width:100%;min-width:0;font:inherit;font-size:12px;background:#fafbfe;border:1px solid #dce3ee;border-radius:8px;padding:12px 6px;color:#243550}select:focus{outline:2px solid #3678ff;outline-offset:2px}select:disabled{color:#9ba7b9;background:#f4f6f9}.sr-only{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.platform-name{display:flex;align-items:center;gap:8px;white-space:nowrap}.platform-name img{height:24px;width:24px;object-fit:contain;border-radius:5px}#report:focus,#loading-title:focus{outline:none}.report-head h1{overflow-wrap:anywhere}.loading-brand{height:170px;width:170px;position:relative;margin:0 auto 35px;display:grid;place-items:center}.logo-core{width:100px;height:100px;border:1px solid #e0eaff;background:white;box-shadow:0 12px 40px #2469ed18;border-radius:28px;display:grid;place-items:center;animation:breathe 3s ease-in-out infinite}.logo-core img{width:62px;height:62px}.orbit{position:absolute;border:1px solid #dce7ff;border-radius:50%;inset:0}.orbit:after{content:'';position:absolute;top:12px;left:25px;width:11px;height:11px;background:#3678ff;border:3px solid #edf3ff;border-radius:50%;box-shadow:0 0 16px #3678ff66}.orbit-one{animation:orbit 7s linear infinite}.orbit-two{inset:-18px;border-style:dashed;animation:orbit 15s linear infinite reverse;opacity:.55}.orbit-two:after{width:7px;height:7px;left:40px;top:15px}#loading-page{text-align:center;max-width:650px;margin:45px auto;min-height:580px;padding:35px 15px}#loading-page h2{font-size:27px;margin:20px 0 15px}#loading-detail{color:#75839b;min-height:24px}.loading-track{height:4px;max-width:330px;background:#e4ebf6;border-radius:5px;margin:30px auto 18px;overflow:hidden}.loading-track span{display:block;width:40%;height:100%;background:linear-gradient(90deg,#92bcff,#2768ee);border-radius:5px;animation:track 2.2s ease-in-out infinite}.loading-stages{display:flex;justify-content:center;gap:32px;font-size:12px;color:#a0adbf}.loading-stages .active{color:#2869ee}.loading-meta{color:#8f9bb0;font-size:11px;margin-top:28px}.report-nav{gap:12px}@keyframes orbit{to{transform:rotate(360deg)}}@keyframes breathe{50%{transform:scale(1.045)}}@keyframes track{from{transform:translateX(-100%)}to{transform:translateX(350%)}}@media(max-width:800px){#input-page{grid-template-columns:1fr;gap:20px}.hero h1{font-size:clamp(29px,7.2vw,48px);letter-spacing:-1px}.hero-bottom{margin:25px 0 8px}.hero{padding-bottom:5px}.platforms{grid-template-columns:repeat(3,minmax(0,1fr))}.platforms span{padding:10px 8px;justify-content:center;font-size:11px;gap:6px}.platforms img{width:21px;height:21px}.form-card{padding:24px 20px}.hero>p{font-size:14px}.principles{gap:10px}#loading-page{margin:20px auto;min-height:540px}.report-head h1{font-size:24px;letter-spacing:0}}@media(prefers-reduced-motion:reduce){.orbit,.logo-core,.loading-track span{animation:none}}

/* Mobile-first refinements: touch targets and platform cards */
html{width:100%;overflow-x:clip}body{min-width:280px}main,section,.hero,.form-card,.report-body{min-width:0}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button{touch-action:manipulation}input,select,textarea{max-width:100%}textarea{min-height:110px}button:focus-visible,a:focus-visible{outline:3px solid #94b8ff;outline-offset:3px}.result-nav{gap:12px}#report{scroll-margin-top:16px}
@media(max-width:800px){header{padding:16px 20px}.brand b{font-size:18px}.brand img{width:32px;height:32px}header>a:last-child{font-size:12px;min-height:44px;display:flex;align-items:center}main{padding:0 18px;margin-top:2px}.hero .eyebrow{font-size:9px;letter-spacing:2px}.hero h1{font-size:clamp(29px,7.2vw,46px);margin:18px 0 14px}.hero>p{margin:0;line-height:1.8}.platforms{margin-top:20px;gap:8px}.hero-bottom{margin:23px 0 2px}.form-card{border-radius:14px;padding:22px 18px;box-shadow:0 8px 35px #263e7009}.form-card h2{font-size:22px;margin-top:23px}.muted{line-height:1.8;margin-bottom:20px}input,select,textarea{font-size:16px;min-height:48px}textarea::placeholder{font-size:13px}.chips button{min-height:36px;padding:7px 10px;font-size:11px}.region-selects{grid-template-columns:1fr;gap:9px}.region-selects select{padding:12px;border-radius:8px}.region-field .hint{margin-top:9px}.region-field{margin-bottom:18px}#submit{min-height:52px;font-size:16px;margin-top:22px}.hint{font-size:11px}.principles{padding:20px 0;gap:12px;margin-top:6px}.principles>div{display:flex;gap:8px;align-items:flex-start}.principles b{font-size:19px;margin:0}.principles span{font-size:10px;line-height:1.8}.principles small{display:none}footer{font-size:10px;padding:18px;gap:14px;margin-top:15px}.result-nav{margin:12px 0 18px}.result-nav>button{min-height:46px;font-size:12px}.result-nav>button:first-child{padding-left:0}.report-head{padding:25px 20px}.report-head .eyebrow{font-size:9px;letter-spacing:1.6px}.report-head h1{font-size:24px;line-height:1.5}.report-head p{font-size:13px}.meta{gap:7px}.meta span{font-size:11px;padding:7px 9px}.report-body{padding:20px 16px}.notice{padding:11px 12px;font-size:11px}.report-body h2{font-size:18px;line-height:1.6}.notes{gap:0}.notes li{font-size:13px;line-height:1.9}.report-foot{flex-wrap:wrap;font-size:11px}.report-foot span{flex-basis:100%;padding-left:36px}.loading-brand{margin-top:10px}#loading-page{min-height:520px;padding:28px 4px;margin-top:20px}#loading-page h2{font-size:23px}.loading-stages{gap:25px}.loading-meta{font-size:11px}}
@media(max-width:640px){.table-wrap{overflow:visible}#report table{min-width:0;width:100%;display:block}#report thead{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}#report tbody{display:grid;gap:14px}#report tr{display:grid;grid-template-columns:1fr 1fr;border:1px solid #e1e8f3;border-radius:12px;background:#fff;overflow:hidden}#report td{display:block;padding:14px 12px;border:0;min-width:0;font-size:13px}#report td:first-child{grid-column:1/-1;width:auto;background:#f4f7fc;padding:13px 14px}#report .platform-name{font-size:16px}#report td:first-child>small{font-size:11px;margin-top:5px;margin-left:32px}#report td:nth-child(2)::before{content:'预计线索单价';display:block;color:#8290a6;font-size:11px;margin-bottom:7px;font-weight:400}#report td:nth-child(3)::before{content:'预计月线索量';display:block;color:#8290a6;font-size:11px;margin-bottom:7px}#report td:nth-child(3){font-weight:600;font-size:16px}#report td:nth-child(2) strong{font-size:20px;white-space:normal;overflow-wrap:anywhere}#report td:nth-child(4){grid-column:1/-1;border-top:1px solid #eef1f7;padding-top:12px;line-height:1.9;color:#53657e}#report td:nth-child(4) small{font-size:11px;line-height:1.8;margin-top:6px}#report td small{line-height:1.7}.report-head h1{font-size:22px}}
@media(max-width:350px){main{padding:0 12px}.brand{gap:7px}.brand b{font-size:16px}.platforms span{font-size:10px;padding:9px 5px}.platforms img{width:19px;height:19px}.form-card{padding:20px 15px}.card-top{font-size:10px}.step{font-size:9px}.hero h1{font-size:28px}.hero-bottom{gap:10px}.principles>div{display:block}.principles b{display:block;margin-bottom:5px}}


.report-disclaimer{font-size:11px;line-height:1.8;color:#929baa;margin-top:18px;font-weight:400;background:transparent;padding:0;}

.hero-bottom{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px 20px;max-width:420px}.hero-bottom>span{display:flex;align-items:center;gap:8px;white-space:nowrap}.hero-bottom i{margin-left:0}.hero-bottom>span:not(:last-child) i::after{content:'→';font-style:normal;color:#b0bfd8;margin-left:12px}.hero-bottom i{font-size:12px}@media(max-width:800px){.hero-bottom{gap:14px 18px;max-width:420px;margin-top:22px}.hero-bottom i{font-size:12px}}@media(max-width:350px){.hero-bottom{gap:13px 10px}.hero-bottom>span{gap:6px}.hero-bottom i{font-size:11px}.hero-bottom>span:not(:last-child) i::after{margin-left:6px}}

#report td small a{color:#3678ee;text-decoration:underline}#report td small{overflow-wrap:anywhere}