.str-wrapper{max-width:920px;margin:0 auto;padding:0 16px 48px;display:flex;flex-direction:column;gap:16px}.str-page-header{max-width:920px;margin:0 auto;padding:24px 16px 8px;text-align:center}.str-presets{display:flex;flex-wrap:wrap;gap:8px}.str-preset-btn{min-height:44px;padding:8px 14px;border-radius:8px;border:1px solid var(--swp-border, #e5e7eb);background:var(--swp-surface, #fff);font-size:13px;cursor:pointer;color:var(--swp-ink);transition:background .15s,border-color .15s}.str-preset-btn:hover{background:var(--swp-bg, #f9fafb);border-color:var(--color-primary, #0d9488)}.str-layout{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start}.str-section{background:var(--swp-surface, #fff);border:1px solid var(--swp-border, #e5e7eb);border-radius:12px;padding:14px;display:flex;flex-direction:column;gap:10px;margin-bottom:12px}.str-section:last-child{margin-bottom:0}.str-section-title{font-size:13px;font-weight:800;color:var(--swp-ink);margin:0;display:flex;align-items:center;gap:8px}.str-input{width:100%;font-family:Courier New,Courier,monospace;font-size:15px;padding:10px 14px;border:2px solid var(--swp-border, #e5e7eb);border-radius:8px;color:var(--swp-ink);background:var(--swp-bg, #f9fafb);box-sizing:border-box;transition:border-color .15s,background .15s}.str-input:focus{outline:none;border-color:var(--color-primary, #0d9488)}.str-char-count{font-size:11px;color:var(--swp-ink-muted);margin:0;text-align:right}.str-method-select{width:100%;min-height:44px;padding:8px 12px;border:2px solid var(--swp-border, #e5e7eb);border-radius:8px;font-size:14px;color:var(--swp-ink);background:var(--swp-bg, #f9fafb);cursor:pointer;transition:border-color .15s,background .15s}.str-method-select:focus{outline:none;border-color:var(--color-primary, #0d9488)}.str-arg-group{display:flex;flex-direction:column;gap:4px}.str-arg-label{font-size:12px;font-weight:700;color:var(--swp-ink-muted)}.str-arg-input{width:100%;padding:8px 12px;border:2px solid var(--swp-border, #e5e7eb);border-radius:8px;min-height:44px;font-size:14px;color:var(--swp-ink);background:var(--swp-bg, #f9fafb);box-sizing:border-box;font-family:Courier New,Courier,monospace;transition:border-color .15s,background .15s}.str-arg-input:focus{outline:none;border-color:var(--color-primary, #0d9488)}.str-action-row{display:flex;gap:8px;flex-wrap:wrap}.str-action-btn{min-height:44px;padding:10px 20px;border-radius:8px;border:1px solid var(--swp-border, #e5e7eb);background:var(--swp-surface, #fff);font-size:13px;font-weight:700;cursor:pointer;color:var(--swp-ink);transition:background .15s,opacity .15s,border-color .15s}.str-action-btn:hover:not(:disabled){background:var(--swp-bg, #f9fafb)}.str-action-btn:disabled{opacity:.4;cursor:not-allowed}.str-action-btn--copied{background:#d1fae5;border-color:#059669;color:#065f46}.str-action-btn--reset{color:var(--swp-ink-muted)}.str-call-expr{font-family:Courier New,Courier,monospace;font-size:13px;background:var(--swp-bg, #f9fafb);padding:12px 16px;border-radius:8px;border-left:4px solid var(--color-primary, #0d9488);word-break:break-all;margin:0;color:var(--swp-ink)}.str-result-box{padding:16px;border-radius:12px;min-height:64px;display:flex;flex-direction:column;gap:8px}.str-result-box--string{background:#ebf8ff;border:1px solid #bee3f8}.str-result-box--number,.str-result-box--boolean-true{background:#f0fff4;border:1px solid #9ae6b4}.str-result-box--boolean-false{background:#fff5f5;border:1px solid #feb2b2}.str-result-box--error{background:#fff5f5;border:2px solid #e53e3e}.str-result-string-value{font-family:Courier New,Courier,monospace;font-size:14px;color:#1a365d;word-break:break-all}.str-result-number-value{font-family:Courier New,Courier,monospace;font-size:28px;font-weight:700;color:#276749}.str-result-boolean-value{font-size:18px;font-weight:700}.str-result-error{font-size:13px;color:#c53030;margin:0}.str-result-meta{font-size:11px;color:var(--swp-ink-muted);margin:0}.str-result-array{display:flex;flex-wrap:wrap;gap:6px}.str-result-array-item{background:#e2e8f0;border-radius:999px;padding:4px 12px;font-family:Courier New,Courier,monospace;font-size:13px;color:#2d3748}.str-desc-return-type{display:inline-block;padding:2px 8px;border-radius:20px;background:var(--swp-bg, #f9fafb);border:1px solid var(--swp-border, #e5e7eb);font-size:11px;font-weight:700;color:var(--color-primary, #0d9488);font-family:Courier New,Courier,monospace}.str-desc-text{font-size:14px;line-height:1.7;color:var(--swp-ink);margin:0}.str-desc-example{font-family:Courier New,Courier,monospace;font-size:13px;background:#1a202c;color:#e2e8f0;padding:12px;border-radius:8px;margin:0;word-break:break-all;white-space:pre-wrap}.str-how-to{max-width:920px;margin:48px auto 0;padding:0 16px}.str-section-heading{font-size:20px;font-weight:800;color:var(--swp-ink);margin:0 0 16px}.str-steps{padding-left:20px;display:flex;flex-direction:column;gap:8px;font-size:15px;line-height:1.7;color:var(--swp-ink)}.str-related-section{max-width:920px;margin:32px auto 0;padding:0 16px}.str-related-tools{display:flex;flex-direction:column;gap:8px}.str-related-link{color:var(--color-primary, #0d9488);text-decoration:none;font-size:15px}.str-related-link:hover{text-decoration:underline}@media(max-width:639px){.str-layout{display:flex;flex-direction:column;gap:16px}.str-control-col{order:1}.str-result-col{order:2}.str-input{font-size:14px}}