:root{--se-primary:#6f55c6;--se-yellow:#f4cf49;--se-ink:#30253b;--se-muted:#756c7e;--se-line:#e7e0ee;--se-soft:#f8f5ff}
.se-hero{padding:76px 0 54px;background:linear-gradient(135deg,#fffaf0,#f7f2ff)}
.se-hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:50px;align-items:center}
.stamp-showcase{display:grid;place-items:center;min-height:330px}
.stamp-visual{position:relative;width:230px;height:230px;display:grid;place-items:center}
.stamp-handle{position:absolute;top:0;width:112px;height:110px;border-radius:32px 32px 20px 20px;background:linear-gradient(145deg,#d8a86b,#a66c34);box-shadow:0 18px 35px rgba(71,42,21,.22)}
.stamp-base{position:absolute;bottom:20px;width:210px;height:72px;border-radius:18px;background:linear-gradient(145deg,#c88d4e,#8d5528);box-shadow:0 20px 40px rgba(71,42,21,.25)}
.stamp-mark{position:absolute;bottom:-5px;width:185px;height:50px;border:7px solid #7e5acb;border-radius:50%;display:grid;place-items:center;color:#7e5acb;font-weight:800;letter-spacing:.08em;background:#fff}
.se-section{padding:70px 0}.se-layout{display:grid;grid-template-columns:minmax(0,1fr) 370px;gap:36px;align-items:start}
.se-card{padding:27px;border:1px solid var(--se-line);border-radius:26px;background:#fff;box-shadow:0 18px 45px rgba(60,40,90,.08)}
.se-spec-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:22px}.se-spec{padding:16px;border:1px solid var(--se-line);border-radius:16px;background:var(--se-soft)}.se-spec span{display:block;color:var(--se-muted);font-size:.78rem}.se-spec strong{display:block;margin-top:5px}
.se-upload-note{display:flex;gap:12px;margin-top:22px;padding:16px;border:1px dashed rgba(111,85,198,.35);border-radius:16px;background:#faf8ff}.se-upload-note span{font-size:22px}.se-upload-note p{margin:4px 0 0;color:var(--se-muted);font-size:.88rem;line-height:1.5}
.se-summary{position:sticky;top:104px;padding:27px;border:1px solid var(--se-line);border-radius:26px;background:#fff;box-shadow:0 20px 48px rgba(48,37,91,.1)}.se-summary h2{margin:4px 0 20px}.se-summary dl{margin:0;padding-bottom:18px;border-bottom:1px solid var(--se-line)}.se-summary dl div{display:flex;justify-content:space-between;gap:18px;padding:9px 0}.se-summary dt{color:var(--se-muted)}.se-summary dd{margin:0;text-align:right;font-weight:600}.se-price{display:flex;justify-content:space-between;align-items:end;margin:18px 0}.se-price span{color:var(--se-muted)}.se-price strong{font-size:2rem;color:var(--se-primary)}
@media(max-width:900px){.se-hero-grid,.se-layout{grid-template-columns:1fr}.se-summary{position:static}.stamp-showcase{min-height:280px}}@media(max-width:560px){.se-spec-grid{grid-template-columns:1fr}}