.sd-hero-clean,.sd-hero-clean *,.sd-modal,.sd-modal *{box-sizing:border-box}.sd-hero-clean{font-family:var(--sd-font);background:linear-gradient(135deg,#fffaf4 0%,#fff 55%,#f7f9ff 100%);color:#0b1633;padding:46px 20px}.sd-clean-wrap{max-width:1420px;margin:auto;text-align:center}.sd-badge{display:inline-flex;padding:9px 16px;border-radius:999px;background:#fff3e8;border:1px solid #ffd6b8;color:var(--sd-primary);font-size:14px;font-weight:700;margin-bottom:24px}.sd-clean-wrap h1{margin:0;font-size:clamp(42px,5.5vw,72px);line-height:.98;letter-spacing:-2px;font-weight:800}.sd-clean-wrap h1 span{color:var(--sd-primary)}.sd-clean-wrap p{max-width:880px;margin:22px auto 28px;font-size:21px;line-height:1.45;color:#53617a;font-weight:500}.sd-link-form{max-width:980px;margin:0 auto 22px;display:flex;gap:10px;background:#fff;border:1px solid #e1e7f0;border-radius:20px;padding:8px;box-shadow:0 18px 46px rgba(15,32,64,.08)}.sd-link-form input{flex:1;border:0;outline:none;padding:0 18px;font-family:inherit;font-size:17px;font-weight:600;color:#0b1633;background:transparent}.sd-link-form button,.sd-submit{border:0;border-radius:15px;background:var(--sd-primary);color:white;padding:18px 24px;font-family:inherit;font-size:16px;font-weight:800;cursor:pointer}.sd-link-form button:hover,.sd-submit:hover{filter:brightness(.96);transform:translateY(-1px)}.sd-error-input{outline:2px solid var(--sd-primary)!important;border-radius:14px}.sd-features{display:flex;justify-content:center;gap:10px;flex-wrap:wrap}.sd-features span{background:rgba(255,255,255,.9);border:1px solid #e8edf5;border-radius:999px;padding:10px 14px;font-size:15px;font-weight:700}.sd-brand-strip{max-width:1080px;margin:28px auto 0;overflow:hidden;background:rgba(255,255,255,.82);border:1px solid #e8edf5;border-radius:18px;padding:14px 0;box-shadow:0 10px 28px rgba(15,32,64,.04)}.sd-brand-title{font-size:13px;font-weight:800;color:#66728a;margin-bottom:10px}.sd-brand-track{display:flex;gap:28px;width:max-content;animation:sdmarquee 22s linear infinite}.sd-brand-track span{font-size:18px;font-weight:800;color:#0b1633;opacity:.78;white-space:nowrap}@keyframes sdmarquee{from{transform:translateX(0)}to{transform:translateX(-50%)}}.sd-modal{position:fixed;inset:0;background:rgba(11,22,51,.45);display:none;align-items:center;justify-content:center;z-index:99999;padding:20px;font-family:var(--sd-font)}.sd-modal.active{display:flex}.sd-modal-box{width:100%;max-width:1180px;max-height:92vh;overflow:auto;background:#fff;border-radius:28px;position:relative;box-shadow:0 30px 90px rgba(0,0,0,.22)}.sd-modal-wide{display:grid;grid-template-columns:.85fr 1.15fr}.sd-close{position:absolute;top:18px;right:20px;border:0;background:#f5f6f9;width:42px;height:42px;border-radius:50%;font-size:26px;cursor:pointer;color:#d6336c;z-index:2}.sd-preview-pane{background:linear-gradient(180deg,#fff9f2,#fff);padding:34px;border-right:1px solid #e8edf5}.sd-preview-badge{display:inline-flex;border:1px solid #ffd6b8;color:var(--sd-primary);background:#fff3e8;border-radius:999px;padding:9px 14px;font-weight:800;margin-bottom:18px}.sd-preview-image{height:260px;border:1px solid #e1e7f0;border-radius:22px;background:#fff;display:flex;align-items:center;justify-content:center;overflow:hidden}.sd-preview-image span{font-size:58px;background:#fff3e8;border-radius:24px;padding:30px}.sd-preview-image img{width:100%;height:100%;object-fit:contain}.sd-preview-domain{text-transform:uppercase;color:var(--sd-primary);font-size:14px;font-weight:800;margin-top:22px}.sd-preview-title{font-size:26px;font-weight:800;color:#0b1633;margin:8px 0 10px}.sd-preview-link{color:#0b1633;font-weight:800;text-decoration:underline;text-decoration-color:var(--sd-primary);text-underline-offset:4px}.sd-preview-note{margin-top:18px;border:1px solid #e8edf5;border-radius:18px;padding:16px;color:#53617a;font-weight:700;line-height:1.4}.sd-form-pane{padding:34px}.sd-form-pane h2{margin:0 0 8px;font-size:36px;color:#0b1633}.sd-modal-sub{margin:0 0 22px;color:#647089;font-size:17px;line-height:1.4}.sd-modal label{display:block;margin:13px 0 7px;font-weight:800;color:#17233c}.sd-modal input,.sd-modal textarea,.sd-modal select{width:100%;border:1px solid #dfe5ef;border-radius:14px;padding:14px 16px;font-family:inherit;font-size:15px;outline:none}.sd-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.sd-submit{width:100%;margin-top:18px}.sd-submit:disabled{opacity:.65;cursor:wait}.sd-message{margin-top:14px;font-weight:800}.sd-message.success{color:#16803a}.sd-message.error{color:#c62828}@media(max-width:900px){.sd-modal-wide{grid-template-columns:1fr}.sd-preview-pane{border-right:0;border-bottom:1px solid #e8edf5}.sd-preview-image{height:190px}}@media(max-width:620px){.sd-hero-clean{padding:42px 16px}.sd-clean-wrap h1{font-size:38px;letter-spacing:-1.2px}.sd-clean-wrap p{font-size:17px}.sd-link-form{display:grid}.sd-link-form input{min-height:52px}.sd-grid{grid-template-columns:1fr}.sd-form-pane,.sd-preview-pane{padding:24px}.sd-form-pane h2{font-size:30px}}
.sd-toast{position:sticky;top:0;grid-column:1/-1;z-index:5;margin:0;padding:0;max-height:0;overflow:hidden;opacity:0;transition:all .25s ease}.sd-toast.active{max-height:90px;opacity:1;margin:0;padding:16px 22px;font-weight:800;font-size:17px;text-align:center;border-bottom:1px solid #d9f0df}.sd-toast.success{background:#effaf2;color:#16803a}.sd-toast.error{background:#fff1f1;color:#c62828;border-bottom-color:#ffd3d3}
@media(max-width:900px){.sd-toast.active{font-size:15px;padding:14px 18px}}

/* V2.3 design refinements */
.sd-hero-clean{min-height:auto;}
.sd-clean-wrap{width:min(1180px,94vw);}
.sd-clean-wrap h1{font-size:clamp(40px,5vw,68px);}
.sd-link-form{width:min(860px,100%);}
.sd-brand-strip{width:min(1080px,100%);padding:14px 0 16px;}
.sd-brand-track{align-items:center;gap:30px;animation:sdmarquee 28s linear infinite;}
.sd-brand-item{height:40px;min-width:112px;display:inline-flex;align-items:center;justify-content:center;padding:7px 16px;border-radius:14px;background:#fff;border:1px solid #eef2f7;box-shadow:0 6px 16px rgba(15,32,64,.035);}
.sd-brand-item img{max-width:110px;max-height:28px;object-fit:contain;filter:grayscale(1);opacity:.78;transition:.2s ease;}
.sd-brand-item strong{font-size:17px;font-weight:850;color:#0b1633;opacity:.75;}
.sd-brand-strip:hover .sd-brand-track{animation-play-state:paused;}
.sd-brand-item:hover img{filter:grayscale(0);opacity:1;}
@media(max-width:620px){.sd-hero-clean{padding:34px 14px}.sd-brand-item{min-width:96px;height:36px}.sd-brand-item img{max-width:92px;max-height:24px}}

/* V2.4 */
.sd-radio-row{display:flex;gap:12px;flex-wrap:wrap;margin:10px 0 4px}.sd-radio-row label{display:flex!important;align-items:center;gap:8px;background:#f6f8fc;border:1px solid #dfe5ef;border-radius:14px;padding:10px 14px;margin:0!important;font-weight:800}.sd-radio-row input{width:auto!important}.sd-product-grid{margin-top:8px}.sd-modal select{background:#fff}.sd-clean-wrap{width:min(1420px,96vw)}.sd-brand-strip{max-width:1180px}.sd-link-form{max-width:980px}