:root{--ink:#17304e;--muted:#52677f;--blue:#2457cc;--pale:#e9f1ff;--line:#ccd9e9;--paper:#f8fbff;--white:#fff}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:"Hiragino Sans","Yu Gothic",sans-serif;font-size:16px;line-height:1.9}a{color:#184bb3;text-underline-offset:4px}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #c47a00;outline-offset:5px}.draft{background:#fff1cc;color:#64460f;padding:10px 24px;font-size:13px;line-height:1.7}.wrap{max-width:1080px;margin:auto;padding:0 32px}header{padding:26px 0;border-bottom:1px solid var(--line)}.brand{font-size:19px;font-weight:700;text-decoration:none;color:var(--ink)}header .wrap{display:flex;justify-content:space-between;gap:18px;align-items:center}header small{color:var(--muted)}.hero{padding:70px 0 60px;display:grid;grid-template-columns:1.35fr 1fr;gap:52px;align-items:center}.disclosure{font-size:13px;color:var(--muted)}h1{font-size:clamp(30px,3.3vw,44px);line-height:1.5;letter-spacing:-.035em;margin:18px 0 22px;font-weight:700}h2{font-size:28px;line-height:1.55;margin:0 0 24px;letter-spacing:-.025em}h3{font-size:20px;line-height:1.6;margin:0 0 10px}p{margin:0 0 20px}.intro{color:var(--muted)}.btn{display:inline-block;padding:13px 22px;background:var(--blue);color:white;text-decoration:none;border:0;border-radius:5px;font:inherit;font-weight:600;line-height:1.5}.btn:disabled{background:#d5dfee;color:#52647b;cursor:not-allowed}.map{background:var(--pale);padding:30px 28px;border-radius:20px 4px 20px 4px}.map-label{font-size:14px;color:var(--muted);margin-bottom:20px}.map-row{padding:16px 0;border-top:1px solid #b9ccef;display:grid;grid-template-columns:1fr 30px 1.25fr;gap:8px;align-items:center}.map-row strong{font-size:19px}.map-row span{font-size:14px}.map small{display:block;margin-top:16px;color:var(--muted);font-size:12px}.content{max-width:760px;margin:auto}.content section{padding:48px 0;border-top:1px solid var(--line)}.contents{padding:26px 30px;background:white;border:1px solid var(--line);border-radius:8px;margin-bottom:48px}.contents p{font-weight:600;margin-bottom:8px}.contents ol{margin:0;padding-left:24px}.contents li{padding:4px 0}.section-label{color:var(--blue);font-size:14px;font-weight:700;margin-bottom:10px}.check{padding:22px 26px;background:white;border-left:4px solid var(--blue);margin:22px 0}.check p:last-child{margin-bottom:0}.check ul{margin:0;padding-left:20px}.example{font-size:15px;color:var(--muted);background:var(--pale);padding:22px 26px;border-radius:8px}.example strong{color:var(--ink)}.table-scroll{overflow-x:auto}table{width:100%;border-collapse:collapse;background:white;font-size:15px}th,td{text-align:left;padding:16px;border-bottom:1px solid var(--line);vertical-align:top}th{background:var(--pale)}.service{border:1px solid var(--line);background:white;padding:30px;border-radius:10px}.service ul{padding-left:22px}.notice{font-size:14px;color:var(--muted)}.cta{margin-top:28px;background:var(--pale);padding:26px;text-align:center;border-radius:8px}.cta h3{margin-bottom:14px}.cta .notice{margin:14px 0 0}.steps{padding-left:24px}.steps li{padding:6px 0 14px}details{border-bottom:1px solid var(--line);padding:20px 0}summary{font-weight:600;cursor:pointer}details p{margin:14px 0 0}footer{margin-top:48px;border-top:1px solid var(--line);padding:28px 0 44px;font-size:13px;color:var(--muted)}footer p{margin-bottom:10px}.review-main{padding:52px 0}.review-main h1{max-width:800px}.review-main section{padding:32px 0;border-top:1px solid var(--line)}.ad-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.ad-grid img{width:100%;height:auto;display:block;border-radius:5px}.ad-grid h3{margin-top:18px}.ad-grid p{font-size:14px}.status{display:inline-block;padding:3px 10px;background:var(--pale);border-radius:4px;font-size:13px}.review-links{display:flex;flex-wrap:wrap;gap:16px;margin:28px 0}.plain-list li{padding:7px 0}@media(max-width:700px){.wrap{padding:0 22px}header{padding:18px 0}header .wrap{align-items:flex-start;flex-direction:column;gap:0}header small{font-size:12px}.hero{padding:34px 0;display:block}.hero h1 br{display:none}.map{margin-top:28px;padding:22px}.map-row strong{font-size:17px}.content section{padding:34px 0}h2{font-size:24px}.contents{padding:20px}.service{padding:22px}.check,.example{padding:20px}.ad-grid{grid-template-columns:1fr}.ad-grid article{max-width:440px}.draft{padding:10px 22px}.review-main{padding-top:24px}.table-scroll table{min-width:520px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
/* v2: concrete service introduction informed by observed competitor ads */
:root{--ink:#142b48;--paper:#fff;--lime:#ddfb68}section[id]{scroll-margin-top:24px}.hero-band{background:var(--ink);color:white}.hero-band .hero{gap:64px;padding:62px 0 66px;grid-template-columns:1.3fr 1fr}.hero-band .disclosure{color:#d6e3f5}.eyebrow{display:inline-block;background:var(--lime);color:var(--ink);padding:2px 10px;font-weight:700;font-size:14px;margin:10px 0 0}.hero-band h1{font-family:"Hiragino Mincho ProN","Yu Mincho",serif;font-size:clamp(38px,4.3vw,58px);line-height:1.4;margin-top:24px}.hero-band h1 em{font-style:normal;text-decoration:underline;text-decoration-color:var(--lime);text-underline-offset:9px;text-decoration-thickness:4px}.hero-lead{color:#e6edf7;font-size:16px;max-width:520px}.btn.lime{background:var(--lime);color:var(--ink)}.hero-note{font-size:12px;color:#cfdbeb;margin:12px 0 0}.field-card{background:#f4f6f8;color:var(--ink);padding:36px 30px;box-shadow:12px 12px 0 #2b4f7d}.field-label{letter-spacing:.18em;font-size:11px;color:#54708f}.field-card h2{font-size:30px;margin:18px 0 25px}.field-row{display:flex;align-items:center;gap:20px;padding:15px 0;border-top:1px solid #cbd5e2}.field-row b{font-family:Georgia,"Yu Mincho",serif;font-size:38px;line-height:1.3;width:90px;color:#2457cc}.field-row span{font-size:14px}.field-card>p{font-size:11px;line-height:1.8;margin:16px 0 0;color:var(--muted)}.byline{font-size:12px;color:var(--muted);padding:26px 0;margin:0}.content .first-section{border:0;padding-top:26px}.support-list{margin:30px 0}.support-list>div{display:flex;gap:24px;padding:23px 0;border-top:1px solid var(--line)}.support-list>div>span{color:var(--blue);font:32px Georgia,serif}.support-list p{margin:0;color:var(--muted);font-size:15px}.support-list h3{margin-bottom:5px}.cta{background:#f0f4fa;border-radius:0;border-top:3px solid var(--blue);margin:28px 0}.cta .btn{max-width:100%}.cta .btn:disabled{background:var(--blue);color:white;opacity:.72}.citation{font-size:12px;margin-left:4px}.contents{margin-top:10px;background:#f6f8fb;border:0;border-radius:0}.jobs-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:28px 0 20px}.jobs-grid article{background:#f0f4fa;padding:18px 15px;border-top:4px solid var(--blue)}.job-type{font-size:11px;font-weight:700;color:var(--blue)}.jobs-grid h3{font-size:20px;margin:10px 0 4px}.jobs-grid p{font-size:12px;margin:0 0 18px}.jobs-grid strong{display:block;font-size:22px;white-space:nowrap;color:var(--blue);line-height:1.5;letter-spacing:-.04em}.jobs-grid strong span{font-size:12px;margin-left:4px}.jobs-grid .job-meta{font-size:10px;color:var(--muted);margin:5px 0 14px}.jobs-grid .job-condition{border-top:1px solid #cad6e7;padding-top:10px;font-size:11px;min-height:42px;margin:0}.experience-list{border-left:3px solid var(--blue);padding:0 0 0 24px;margin:26px 0}.experience-list>div{padding:10px 0}.experience-list h3{font-size:18px}.experience-list p{font-size:15px;color:var(--muted);margin:0}.pullquote{font-family:"Hiragino Mincho ProN","Yu Mincho",serif;font-size:23px;line-height:1.8;padding:28px 0 28px 24px;border-left:5px solid var(--lime);margin:30px 0}.source h2{font-size:18px}.source p{font-size:13px;color:var(--muted)}.ad-grid article{min-width:0}.ad-grid img{border-radius:0;border:1px solid var(--line)}.ad-copy{font-size:13px;color:var(--muted)}.reference-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.reference-grid h3{font-size:18px}.reference-grid p{font-size:14px}.review-main{padding-left:32px;padding-right:32px}.review-main .review-lead{max-width:780px}.review-main h1{font-size:clamp(30px,3.3vw,44px)}@media(max-width:700px){.hero-band .hero{padding:34px 22px 44px;display:block}.hero-band h1{font-size:40px}.hero-band .hero h1 br{display:initial}.field-card{margin-top:34px;padding:26px 22px;box-shadow:7px 7px 0 #2b4f7d}.field-card h2{font-size:25px}.field-row b{font-size:32px}.field-row{padding:10px 0}.jobs-grid{grid-template-columns:1fr}.jobs-grid article{padding:22px}.jobs-grid strong{font-size:30px}.jobs-grid h3{font-size:23px}.jobs-grid p{font-size:14px;margin-bottom:12px}.jobs-grid .job-condition{min-height:0;font-size:12px}.jobs-grid .job-meta{font-size:12px}.byline{font-size:11px}.pullquote{font-size:20px;padding-left:17px}.support-list>div{gap:16px}.review-main{padding-left:22px;padding-right:22px}.reference-grid{grid-template-columns:1fr;gap:14px}.cta{padding:24px 18px}.cta .btn{font-size:14px}.hero-lead{font-size:15px}}@media(max-width:350px){.hero-band h1{font-size:34px}.field-row{gap:8px}.field-row span{font-size:12px}}

.publisher-disclosure{margin-top:28px;padding:20px 24px;border:1px solid var(--line);background:#f7f9fc;font-size:14px}.publisher-disclosure p{margin:6px 0 0}.hero-note{font-size:13px;line-height:1.9}

@media(max-width:700px){.hero-band h1.ai-career-title{font-size:35px}}@media(max-width:350px){.hero-band h1.ai-career-title{font-size:29px}}

/* v5: author experience and clearly separated service introduction */
.hero-band h1.story-title{font-size:clamp(32px,3.4vw,44px);line-height:1.55}.story-disclaimer{padding:15px 17px;border-left:3px solid var(--lime);background:#203e61;font-size:14px;line-height:1.9;margin:0 0 24px}.salary-step{border-top:1px solid var(--line);padding:16px 0}.salary-step>span{display:block;font-size:14px}.salary-step strong{display:block;font-size:64px;line-height:1.3;letter-spacing:-.04em}.salary-step strong small{font-size:25px;margin-left:5px}.salary-arrow{font-size:28px;text-align:center;color:var(--blue);line-height:1}.salary-step.after{background:var(--lime);border:0;padding:16px}.story-card>p{font-size:13px}.content .author-story{padding-top:16px;border:0}.career-intro{margin:28px 0 12px}.career-intro h2{font-size:25px}@media(max-width:700px){.hero-band h1.story-title{font-size:32px}.story-card h2{font-size:25px}.salary-step strong{font-size:60px}}@media(max-width:350px){.hero-band h1.story-title{font-size:27px}.salary-step>span{font-size:12px}}

/* v8: reader-facing landing page */
.live-lp .hero-band .hero{padding-top:50px;padding-bottom:54px}.live-lp .hero-note{max-width:500px;font-size:12px;line-height:1.8}.live-lp .hero-action{margin-top:24px}.live-lp .story-card h2{margin-top:0}.live-lp .career-intro{margin:0;border-top:0;padding-top:52px}.live-lp .career-intro h2{font-size:28px}.career-points{padding-left:22px;margin:24px 0}.career-points li{padding:5px 0}.story-separation{margin:30px 0 0;padding-top:20px;border-top:1px solid var(--line);font-size:13px}.live-lp .support-list{margin-bottom:20px}.live-lp .support-list>div{padding:20px 0}.live-lp .cta>p{margin-bottom:16px}.live-lp .closing-cta{margin-bottom:0;padding:32px 24px}.live-lp footer{background:#f6f8fb;margin-top:0}.live-lp .steps{margin-bottom:28px}.live-lp .jobs-grid h3{margin-top:0}@media(max-width:700px){.live-lp .hero-band .hero{padding-top:30px;padding-bottom:38px}.live-lp .career-intro{padding-top:36px}.live-lp .career-intro h2{font-size:24px}.live-lp .hero-action{font-size:15px;padding:14px 16px}.live-lp .closing-cta{padding:26px 18px}}

@media(max-width:700px){.live-lp .story-card{display:none}}