.bt-page{color:var(--ink)}
.bt-hero{position:relative;overflow:hidden;display:grid;grid-template-columns:minmax(0,1.5fr) minmax(210px,.7fr);align-items:end;gap:30px;min-height:430px;padding:clamp(30px,5vw,70px);border-radius:0 0 24px 24px;background:radial-gradient(circle at 82% 22%,#d6f3fd 0,transparent 37%),linear-gradient(125deg,#f5fbff,#e9f5fb)}
.bt-hero-copy{position:relative;z-index:1}.bt-hero h1{max-width:790px;margin:20px 0;font-size:clamp(2.25rem,4.2vw,4.4rem);font-weight:700;line-height:1.13;letter-spacing:-.045em}.bt-hero h1 em{font-style:normal;color:var(--violet)}.bt-hero-copy>p{max-width:650px;margin:0;color:#3f5364;font-size:1rem;line-height:1.75}.bt-hero-actions,.bt-bottom-actions{display:flex;flex-wrap:wrap;gap:11px;margin-top:28px}.bt-hero-actions .biz-button,.bt-hero-actions .biz-button-quiet,.bt-bottom-actions .biz-button,.bt-bottom-actions .biz-button-quiet{min-height:46px;font-size:.82rem}
.bt-hero-visual{position:relative;display:grid;grid-template-columns:repeat(2,1fr);align-items:center;gap:14px;max-width:300px;margin:0 0 5px auto;transform:rotate(-8deg)}.bt-visual-line{position:absolute;top:20%;bottom:20%;left:20%;right:20%;border:2px dashed #1a9ad0;border-radius:50%;transform:rotate(25deg);opacity:.55}.bt-visual-stop{position:relative;display:flex;flex-direction:column;justify-content:space-between;aspect-ratio:1/1;max-width:142px;padding:17px;border:1px solid #d4e7ef;border-radius:17px;background:#fff;color:#304d5e;font-size:.88rem;box-shadow:0 14px 25px #25597c17}.bt-visual-stop:nth-child(3){margin-top:30px}.bt-visual-stop:nth-child(4){margin-top:-30px}.bt-visual-stop b{color:var(--violet);font-size:1.35rem}
.bt-section{padding:clamp(55px,7vw,95px) clamp(18px,4vw,60px)}.bt-section-heading{max-width:690px}.bt-section h2,.bt-bottom h2{margin:10px 0 16px;font-size:clamp(1.85rem,3vw,3rem);font-weight:700;line-height:1.2;letter-spacing:-.035em}.bt-section-heading p{margin:0;color:#536577;line-height:1.7}.bt-intro{display:grid;grid-template-columns:1fr 1fr;gap:clamp(25px,5vw,75px);align-items:start}.bt-intro-copy p{margin:0 0 17px;color:#42586a;font-size:.98rem;line-height:1.8}
.bt-journey{background:#f6fafc}.bt-journey-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-top:34px}.bt-journey-grid article{padding:24px 20px;border:1px solid #dfeaf0;border-radius:14px;background:#fff}.bt-journey-grid article>span{display:inline-block;margin-bottom:35px;color:#0785bd;font-size:.74rem;letter-spacing:.04em}.bt-journey-grid h3{margin:0 0 12px;font-size:1.1rem;line-height:1.3}.bt-journey-grid p{margin:0;color:#516475;font-size:.86rem;line-height:1.65}
.bt-practice{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(270px,.8fr);gap:clamp(25px,5vw,70px);align-items:center}.bt-practice-copy>p{max-width:720px;color:#42586a;line-height:1.8}.bt-practice ul{margin:24px 0 0;padding:0;list-style:none}.bt-practice li{position:relative;margin:0;padding:11px 0 11px 25px;border-top:1px solid #e4ebef;color:#334b5e;line-height:1.5}.bt-practice li::before{content:'✓';position:absolute;left:0;color:var(--violet);font-weight:700}.bt-practice-note{padding:clamp(24px,3vw,38px);border-radius:18px;background:#0f3146;color:#fff;box-shadow:0 23px 45px #0f314629}.bt-note-mark{display:grid;place-items:center;width:48px;height:48px;margin-bottom:30px;border-radius:12px;background:#2ba9d2;color:#fff;font-size:27px}.bt-practice-note strong{display:block;font-size:1.3rem;line-height:1.3}.bt-practice-note p{color:#d4e6ef;line-height:1.75}.bt-practice-note a{display:inline-flex;gap:9px;margin-top:9px;color:#9be3ff;font-weight:700;text-decoration:underline;text-underline-offset:4px}
.bt-faq{background:#f6fafc}.bt-faq-list{display:grid;gap:10px;margin-top:28px}.bt-faq details{border:1px solid #deebf1;border-radius:11px;background:#fff}.bt-faq summary{position:relative;cursor:pointer;padding:18px 52px 18px 20px;color:#15374c;font-size:1rem;line-height:1.45;list-style:none}.bt-faq summary::-webkit-details-marker{display:none}.bt-faq summary::after{content:'+';position:absolute;top:13px;right:20px;color:var(--violet);font-size:25px}.bt-faq details[open] summary::after{content:'−'}.bt-faq details p{max-width:790px;margin:0;padding:0 20px 20px;color:#4b6172;line-height:1.7}.bt-faq summary:focus-visible,.bt-page a:focus-visible{outline:3px solid #078fca;outline-offset:3px}
.bt-bottom{margin:26px clamp(18px,4vw,60px);padding:45px clamp(25px,5vw,65px);border-radius:18px;background:linear-gradient(110deg,#e3f5fc,#f6fbfd)}.bt-bottom p{max-width:660px;color:#506678;line-height:1.65}.bt-source{margin:34px clamp(18px,4vw,60px) 60px;color:#6c7d89;font-size:.75rem;line-height:1.5}.bt-source a{color:#087fb3;text-decoration:underline;text-underline-offset:3px}
@media(max-width:1050px){.bt-journey-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.bt-hero{grid-template-columns:minmax(0,1fr) 220px}.bt-hero-visual{gap:8px}.bt-visual-stop{padding:13px}}
@media(max-width:700px){.bt-hero{display:block;min-height:0;padding:45px 22px 35px}.bt-hero-visual{display:none}.bt-hero h1{font-size:clamp(2.1rem,8vw,3rem)}.bt-hero-copy>p{font-size:.92rem}.bt-intro,.bt-practice{grid-template-columns:1fr}.bt-section{padding:56px 20px}.bt-practice-note{margin-top:3px}.bt-bottom{margin:15px 12px;padding:35px 23px}.bt-source{margin:28px 20px 45px}}
@media(max-width:480px){.bt-hero-actions,.bt-bottom-actions{display:grid}.bt-hero-actions a,.bt-bottom-actions a{width:100%;justify-content:center}.bt-journey-grid{grid-template-columns:1fr}.bt-journey-grid article>span{margin-bottom:18px}.bt-faq summary{font-size:.92rem}.bt-section h2,.bt-bottom h2{font-size:1.9rem}}