:root{--itg-card-bg:var(--surface);--itg-card-border:rgba(68, 97, 242, 0.18);--itg-card-border-hover:rgba(68, 97, 242, 0.35);--itg-card-shadow:0 4px 20px -2px rgba(68, 97, 242, 0.08),0 2px 6px rgba(0, 0, 0, 0.03);--itg-card-shadow-hover:0 8px 30px -4px rgba(68, 97, 242, 0.14),0 4px 10px rgba(0, 0, 0, 0.04);--itg-text-main:var(--ink);--itg-text-sub:var(--ink-2);--itg-text-muted:var(--ink-3);--itg-header-bg:rgba(68, 97, 242, 0.03);--itg-divider:rgba(68, 97, 242, 0.08);--itg-btn-bg:var(--surface);--itg-btn-color:var(--ink-2);--itg-btn-border:rgba(68, 97, 242, 0.14);--itg-btn-hover-bg:var(--indigo-light);--itg-btn-hover-border:rgba(68, 97, 242, 0.35);--itg-btn-hover-color:var(--indigo);--itg-primary:#4461f2;--itg-primary-light:rgba(68, 97, 242, 0.1);--itg-orange:#f97316;--itg-green:#10b981;--itg-green-bg:rgba(16, 185, 129, 0.1);--itg-yellow-bg:rgba(245, 158, 11, 0.12);--itg-yellow-text:#d97706;--itg-rose:#f43f5e;--itg-radius:16px;--itg-radius-sm:10px;--itg-radius-xs:6px;--itg-transition:0.2s ease}[data-theme=dark]{--itg-card-bg:#171a23;--itg-card-border:rgba(99, 102, 241, 0.24);--itg-card-border-hover:rgba(129, 140, 248, 0.45);--itg-card-shadow:0 8px 32px rgba(0, 0, 0, 0.38);--itg-card-shadow-hover:0 12px 40px rgba(0, 0, 0, 0.5);--itg-text-main:#f8fafc;--itg-text-sub:#cbd5e1;--itg-text-muted:#94a3b8;--itg-header-bg:rgba(30, 35, 48, 0.6);--itg-divider:rgba(255, 255, 255, 0.07);--itg-btn-bg:#1c202d;--itg-btn-color:#cbd5e1;--itg-btn-border:rgba(255, 255, 255, 0.1);--itg-btn-hover-bg:rgba(68, 97, 242, 0.18);--itg-btn-hover-border:rgba(129, 140, 248, 0.4);--itg-btn-hover-color:#818cf8;--itg-primary-light:rgba(68, 97, 242, 0.2);--itg-green-bg:rgba(16, 185, 129, 0.18);--itg-yellow-bg:rgba(245, 158, 11, 0.18);--itg-yellow-text:#fbbf24}.itg-page-wrapper{background:var(--surface-2);min-height:calc(100vh - 80px);padding:80px 0 60px;transition:background .3s}.itg-header{text-align:center;max-width:720px;margin:0 auto 30px}.itg-header-icon{width:64px;height:64px;margin:0 auto 16px;border-radius:20px;background:var(--indigo-light);color:var(--indigo);display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-sm)}[data-theme=dark] .itg-header-icon{color:#818cf8}.itg-header h1{font-family:var(--font-display);font-size:clamp(28px, 4vw, 42px);font-weight:800;color:var(--itg-text-main);line-height:1.2;letter-spacing:-.025em;margin:0}.itg-subtitle{font-size:15.5px;color:var(--itg-text-sub);line-height:1.6;margin:0}.itg-workspace{display:flex;flex-direction:column;gap:22px;max-width:1200px;margin:0 auto}.itg-top-row{display:grid;grid-template-columns:1.55fr 1fr;gap:22px}.itg-card{background:var(--itg-card-bg);border:1.5px solid var(--itg-card-border);border-radius:var(--itg-radius);box-shadow:var(--itg-card-shadow);overflow:hidden;transition:border-color var(--itg-transition),box-shadow var(--itg-transition),background .3s ease}.itg-card:hover{border-color:var(--itg-card-border-hover);box-shadow:var(--itg-card-shadow-hover)}.itg-card--flat:hover{border-color:var(--itg-card-border);box-shadow:var(--itg-card-shadow)}.itg-card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 20px;background:var(--itg-header-bg);border-bottom:1.5px solid var(--itg-divider);flex-wrap:wrap}.itg-card-title{display:flex;align-items:center;gap:10px}.itg-card-title h2{font-size:15px;font-weight:700;color:var(--itg-text-main);margin:0;letter-spacing:-.01em}.itg-card-icon{width:30px;height:30px;border-radius:9px;background:var(--indigo-light);color:var(--indigo);display:flex;align-items:center;justify-content:center;flex-shrink:0}[data-theme=dark] .itg-card-icon{color:#818cf8}.itg-mini-btn{display:inline-flex;align-items:center;gap:6px;padding:7px 14px;border-radius:var(--itg-radius-sm);font-size:13px;font-weight:600;color:var(--itg-btn-color);background:var(--itg-btn-bg);border:1.5px solid var(--itg-btn-border);font-family:var(--font-body);cursor:pointer;min-height:40px;transition:all var(--itg-transition)}.itg-mini-btn:hover{color:var(--itg-btn-hover-color);background:var(--itg-btn-hover-bg);border-color:var(--itg-btn-hover-border)}.itg-btn:focus-visible,.itg-copy-btn:focus-visible,.itg-mini-btn:focus-visible,.itg-textarea:focus-visible{outline:2px solid var(--indigo);outline-offset:2px}#itg-input:focus-visible{outline:0}.itg-textarea{width:100%;border:none;outline:0;background:0 0;font-family:var(--font-body);font-size:15.5px;line-height:1.7;color:var(--itg-text-main);padding:22px 22px 12px;resize:none;min-height:160px;box-sizing:border-box;display:block;transition:background .3s}.itg-textarea--sm{min-height:90px;padding:16px 18px}.itg-textarea::placeholder{color:var(--itg-text-muted);opacity:.65}.itg-textarea:focus{background:rgba(68,97,242,.015)}[data-theme=dark] .itg-textarea:focus{background:rgba(68,97,242,.03)}.itg-input-footer{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 20px;border-top:1.5px solid var(--itg-divider);background:var(--itg-header-bg);flex-wrap:wrap}.itg-counter{font-size:12.5px;color:var(--itg-text-muted);font-weight:500}.itg-counter span#itg-char-count{font-weight:700;color:var(--indigo)}[data-theme=dark] .itg-counter span#itg-char-count{color:#818cf8}.itg-charlimit{margin-left:4px;opacity:.7}.itg-actions{display:inline-flex;align-items:center;gap:8px;flex-wrap:wrap}.itg-btn{display:inline-flex;align-items:center;gap:6px;padding:9px 16px;border-radius:var(--itg-radius-sm);font-size:13.5px;font-weight:600;font-family:var(--font-body);border:1.5px solid transparent;cursor:pointer;min-height:44px;transition:all var(--itg-transition);white-space:nowrap}.itg-btn--primary{color:#fff;background:var(--itg-primary);border-color:var(--itg-primary);box-shadow:0 4px 14px rgba(68,97,242,.3)}.itg-btn--primary:hover:not(:disabled){background:#3651d6;border-color:#3651d6;transform:translateY(-1px);box-shadow:0 6px 18px rgba(68,97,242,.4)}.itg-btn--primary:active:not(:disabled){transform:translateY(0)}.itg-btn--outline{color:var(--itg-text-sub);background:var(--itg-btn-bg);border-color:var(--itg-btn-border)}.itg-btn--outline:hover:not(:disabled){color:var(--itg-btn-hover-color);background:var(--itg-btn-hover-bg);border-color:var(--itg-btn-hover-border)}.itg-profile-card{background:var(--itg-card-bg);border:1.5px solid var(--itg-card-border);border-radius:var(--itg-radius);box-shadow:var(--itg-card-shadow);padding:24px 24px 22px;transition:border-color var(--itg-transition),box-shadow var(--itg-transition),background .3s ease;display:flex;flex-direction:column}.itg-profile-card:hover{border-color:var(--itg-card-border-hover);box-shadow:var(--itg-card-shadow-hover)}.itg-profile-top{display:flex;align-items:center;gap:24px}.itg-profile-avatar{width:86px;height:86px;border-radius:50%;padding:3px;background:linear-gradient(45deg,#f9ce34,#ee2a7b,#6228d7);flex-shrink:0}.itg-profile-avatar-inner{width:100%;height:100%;border-radius:50%;border:3px solid var(--itg-card-bg);background:var(--itg-header-bg);display:flex;align-items:center;justify-content:center;font-family:var(--font-display);font-size:26px;font-weight:700;color:var(--itg-text-main)}[data-theme=dark] .itg-profile-avatar-inner{border-color:#171a23}.itg-profile-info{flex:1;min-width:0}.itg-profile-username{font-size:16px;font-weight:700;color:var(--itg-text-main);margin:0 0 12px;letter-spacing:-.01em}.itg-profile-stats{display:flex;align-items:center;gap:22px;margin:0}.itg-profile-stat{display:flex;flex-direction:column;align-items:center;text-align:center}.itg-profile-stat-value{font-size:15px;font-weight:700;color:var(--itg-text-main);line-height:1.2}.itg-profile-stat-label{font-size:12px;color:var(--itg-text-muted);margin-top:2px}.itg-profile-divider{height:1.5px;background:var(--itg-divider);margin:18px 0 14px}.itg-profile-display-name{font-size:14.5px;font-weight:700;color:var(--itg-text-main);margin:0 0 4px}.itg-profile-display-text{font-family:var(--font-body);font-size:14px;color:var(--itg-text-sub);line-height:1.5;margin:0;min-height:22px;word-break:break-word;white-space:pre-wrap}.itg-profile-actions{display:flex;gap:8px;margin-top:16px}.itg-profile-action{flex:1;padding:8px 12px;border-radius:8px;font-size:13px;font-weight:600;background:var(--indigo-light);color:var(--indigo);border:1px solid transparent;cursor:pointer;text-align:center;font-family:var(--font-body);transition:all var(--itg-transition)}.itg-profile-action:hover{background:rgba(68,97,242,.18)}[data-theme=dark] .itg-profile-action{background:rgba(68,97,242,.25);color:#c7d2fe}.itg-profile-active-style{margin-top:14px;font-size:12.5px;color:var(--itg-green);font-weight:600;display:flex;align-items:center;gap:6px}.itg-profile-active-style::before{content:"✓";color:var(--itg-green);font-weight:800}.itg-section-head{margin-bottom:22px;text-align:left}.itg-section-head h2{font-family:var(--font-display);font-size:clamp(20px, 2.6vw, 26px);font-weight:700;color:var(--itg-text-main);margin:0 0 6px;letter-spacing:-.02em}.itg-section-head p{font-size:14.5px;color:var(--itg-text-sub);line-height:1.6;margin:0}.itg-results-section{display:flex;flex-direction:column;gap:16px}.itg-results{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.itg-result-card{background:var(--itg-card-bg);border:1.5px solid var(--itg-card-border);border-radius:var(--itg-radius-sm);box-shadow:var(--itg-card-shadow);padding:14px 16px;display:flex;flex-direction:column;gap:10px;min-height:100px;transition:border-color var(--itg-transition),box-shadow var(--itg-transition),background .3s ease,transform .2s ease}.itg-result-card:hover{border-color:var(--itg-card-border-hover);box-shadow:var(--itg-card-shadow-hover);transform:translateY(-1px)}.itg-result-head{display:flex;align-items:center;justify-content:space-between;gap:8px}.itg-result-name{font-size:11.5px;font-weight:700;color:var(--itg-text-muted);letter-spacing:.04em;text-transform:uppercase}.itg-result-badge{font-size:9.5px;font-weight:700;color:var(--itg-green);background:var(--itg-green-bg);padding:3px 7px;border-radius:99px;letter-spacing:.04em;text-transform:uppercase;line-height:1}.itg-result-badge--partial{color:var(--itg-yellow-text);background:var(--itg-yellow-bg)}.itg-result-body{display:flex;align-items:center;justify-content:space-between;gap:10px;flex:1}.itg-result-text{flex:1;font-size:17px;color:var(--itg-text-main);line-height:1.4;word-break:break-all;overflow-wrap:anywhere;white-space:pre-wrap;min-height:24px;font-family:var(--font-body)}.itg-copy-btn{display:inline-flex;align-items:center;gap:5px;padding:6px 12px;border-radius:var(--itg-radius-xs);font-size:12.5px;font-weight:600;color:var(--indigo);background:rgba(68,97,242,.07);border:1.5px solid rgba(68,97,242,.2);cursor:pointer;font-family:var(--font-body);transition:all var(--itg-transition);white-space:nowrap;flex-shrink:0}.itg-copy-btn:hover{background:var(--indigo);color:#fff;border-color:var(--indigo);box-shadow:0 3px 12px rgba(68,97,242,.3);transform:translateY(-1px)}.itg-copy-btn:active{transform:translateY(0)}.itg-copy-btn.copied{background:var(--itg-green);color:#fff;border-color:var(--itg-green);box-shadow:0 2px 10px rgba(16,185,129,.3)}.itg-copy-btn:focus-visible{outline:2px solid var(--itg-rose);outline-offset:2px}[data-theme=dark] .itg-copy-btn{color:#818cf8;background:rgba(68,97,242,.15);border-color:rgba(129,140,248,.3)}[data-theme=dark] .itg-copy-btn:hover{background:var(--indigo);color:#fff;border-color:var(--indigo)}.itg-section{margin-top:48px;max-width:1200px;margin-left:auto;margin-right:auto}.itg-popular-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:12px}.itg-popular-card{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:16px 18px;background:var(--itg-card-bg);border:1.5px solid var(--itg-card-border);border-radius:var(--itg-radius-sm);box-shadow:var(--itg-card-shadow);transition:border-color var(--itg-transition),box-shadow var(--itg-transition),background .3s ease}.itg-popular-card:hover{border-color:var(--itg-card-border-hover);box-shadow:var(--itg-card-shadow-hover)}.itg-popular-meta{flex:1;min-width:0;display:flex;flex-direction:column;gap:4px}.itg-popular-name{font-size:10.5px;font-weight:700;color:var(--itg-text-muted);letter-spacing:.05em;text-transform:uppercase}.itg-popular-text{font-size:19px;color:var(--itg-text-main);line-height:1.3;word-break:break-all;overflow-wrap:anywhere;font-family:var(--font-body)}.itg-note{font-size:13px;color:var(--itg-text-muted);margin-top:12px;line-height:1.6}.itg-mini-copy{display:inline-flex;align-items:center;gap:4px;padding:5px 11px;border-radius:var(--itg-radius-xs);font-size:12px;font-weight:600;color:var(--indigo);background:var(--indigo-light);border:1px solid rgba(68,97,242,.2);cursor:pointer;font-family:var(--font-body);transition:all var(--itg-transition);white-space:nowrap;flex-shrink:0}.itg-mini-copy:hover{background:var(--itg-primary);color:#fff;border-color:var(--itg-primary)}.itg-mini-copy.copied{background:var(--itg-green);color:#fff;border-color:var(--itg-green)}.itg-mini-copy:focus-visible{outline:2px solid var(--indigo);outline-offset:2px}[data-theme=dark] .itg-mini-copy{background:rgba(68,97,242,.18);color:#c7d2fe;border-color:rgba(129,140,248,.3)}.itg-symbol-groups{display:flex;flex-direction:column;gap:18px}.itg-symbol-group{background:var(--itg-card-bg);border:1.5px solid var(--itg-card-border);border-radius:var(--itg-radius-sm);padding:16px 18px;box-shadow:var(--itg-card-shadow);transition:border-color var(--itg-transition),box-shadow var(--itg-transition)}.itg-symbol-group:hover{border-color:var(--itg-card-border-hover)}.itg-symbol-group-name{font-size:13.5px;font-weight:700;color:var(--itg-text-main);margin:0 0 12px;letter-spacing:-.01em}.itg-symbol-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(44px,1fr));gap:6px}.itg-symbol-pick{width:100%;aspect-ratio:1;min-height:40px;display:inline-flex;align-items:center;justify-content:center;font-size:18px;color:var(--itg-text-main);background:var(--surface-2);border:1.5px solid var(--itg-divider);border-radius:8px;cursor:pointer;font-family:var(--font-body);padding:0;transition:all var(--itg-transition)}.itg-symbol-pick:hover{color:var(--indigo);border-color:rgba(68,97,242,.35);transform:translateY(-1px);box-shadow:0 4px 10px rgba(68,97,242,.12)}.itg-symbol-pick:focus-visible{outline:2px solid var(--indigo);outline-offset:2px}.itg-symbol-pick.copied{background:var(--itg-green-bg);color:var(--itg-green);border-color:var(--itg-green)}.itg-how-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.itg-how-card{background:var(--itg-card-bg);border:1.5px solid var(--itg-card-border);border-radius:var(--itg-radius);padding:24px 22px;box-shadow:var(--itg-card-shadow);position:relative;transition:border-color var(--itg-transition),box-shadow var(--itg-transition)}.itg-how-card:hover{border-color:var(--itg-card-border-hover);box-shadow:var(--itg-card-shadow-hover)}.itg-how-num{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;background:var(--grad);color:#fff;font-size:15px;font-weight:800;margin-bottom:12px;box-shadow:0 4px 12px rgba(68,97,242,.3)}.itg-how-card h3{font-family:var(--font-display);font-size:16.5px;font-weight:700;color:var(--itg-text-main);margin:0 0 6px}.itg-how-card p{font-size:14px;color:var(--itg-text-sub);line-height:1.6;margin:0}.itg-seo{margin-top:48px;max-width:1040px;margin-left:auto;margin-right:auto;display:flex;flex-direction:column;gap:22px}.itg-content-card{background:var(--itg-card-bg);border:1.5px solid var(--itg-card-border);border-radius:var(--itg-radius);padding:28px 32px;box-shadow:var(--itg-card-shadow);transition:border-color var(--itg-transition),box-shadow var(--itg-transition)}.itg-content-card:hover{border-color:var(--itg-card-border-hover)}.itg-content-card h2{font-family:var(--font-display);font-size:clamp(19px, 2.4vw, 24px);font-weight:700;color:var(--itg-text-main);line-height:1.25;margin:0 0 14px}.itg-content-card h2:not(:first-child){margin-top:30px;padding-top:26px;border-top:1px solid var(--itg-divider)}.itg-cta{text-align:center;padding-top:30px;margin-top:30px;border-top:1px solid var(--itg-divider)}.itg-cta h2{color:var(--indigo)}[data-theme=dark] .itg-cta h2{color:#818cf8}.itg-cta p{font-size:15.5px}.itg-content-card p{font-size:15px;color:var(--itg-text-sub);line-height:1.75;margin:0 0 12px}.itg-content-card p:last-child{margin-bottom:0}.itg-content-card strong{color:var(--itg-text-main);font-weight:600}.itg-why-list{list-style:none;padding:0;margin:6px 0 0;display:grid;grid-template-columns:1fr 1fr;gap:8px}.itg-why-list li{position:relative;padding:10px 12px 10px 32px;background:var(--surface-2);border:1px solid var(--itg-divider);border-radius:var(--itg-radius-sm);font-size:14px;color:var(--itg-text-sub);line-height:1.5}.itg-why-list li::before{content:"";position:absolute;left:12px;top:50%;transform:translateY(-50%);width:8px;height:8px;border-radius:50%;background:var(--grad)}.itg-content-card h3{font-size:15.5px;font-weight:700;color:var(--itg-text-main);margin:0 0 6px;letter-spacing:-.01em}.itg-subsection{padding:6px 0}.itg-subsection p{margin-bottom:6px}.itg-why-list strong{color:var(--itg-text-main);font-weight:700}.itg-style-sep{color:var(--itg-text-muted)}.itg-sample{font-family:var(--font-display);font-size:22px;font-weight:800;letter-spacing:.02em;color:var(--itg-text-main);background:var(--itg-primary-light);border:1.5px dashed var(--itg-card-border);border-radius:var(--itg-radius-sm);padding:12px 18px;display:inline-block;margin:4px 0 12px}.itg-cpy-steps{font-family:var(--font-display);font-size:17px;font-weight:700;color:var(--indigo);letter-spacing:.02em;background:var(--itg-primary-light);border-radius:var(--itg-radius-sm);padding:10px 16px;display:inline-block}[data-theme=dark] .itg-cpy-steps{color:#818cf8}.itg-toast{position:fixed;bottom:28px;right:28px;display:flex;align-items:center;gap:10px;padding:12px 18px;border-radius:12px;background:var(--itg-card-bg);border:1.5px solid var(--itg-card-border);box-shadow:0 10px 35px rgba(0,0,0,.18);font-size:13.5px;font-weight:600;color:var(--itg-text-main);z-index:9999;transform:translateY(80px);opacity:0;transition:.3s cubic-bezier(.16, 1, .3, 1);pointer-events:none;max-width:340px}.itg-toast.show{transform:translateY(0);opacity:1}.itg-toast-icon{width:26px;height:26px;border-radius:7px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.itg-toast--success .itg-toast-icon{background:var(--itg-green-bg);color:var(--itg-green)}.itg-toast--error .itg-toast-icon{background:rgba(244,63,94,.12);color:var(--itg-rose)}@media (max-width:960px){.itg-top-row{grid-template-columns:1fr}.itg-results{grid-template-columns:repeat(2,1fr)}}@media (max-width:768px){.itg-page-wrapper{padding:70px 0 50px}.itg-page-wrapper .reveal{opacity:1;transform:none;transition:none}.itg-how-grid,.itg-results,.itg-why-list{grid-template-columns:1fr}.itg-content-card{padding:22px 20px}.itg-textarea{min-height:130px;padding:18px 16px 10px;font-size:15px}.itg-input-footer{flex-direction:column;align-items:stretch;gap:10px}.itg-actions{justify-content:stretch}.itg-actions .itg-btn{flex:1;justify-content:center}}@media (max-width:600px){.itg-header h1{font-size:clamp(24px, 6.5vw, 34px)}.itg-profile-top{gap:16px}.itg-profile-avatar{width:70px;height:70px}.itg-profile-avatar-inner{font-size:22px}.itg-profile-stats{gap:14px}.itg-profile-stat-value{font-size:14px}.itg-toast{bottom:16px;right:16px;left:16px;max-width:calc(100% - 32px)}.itg-card-head{padding:12px 16px}.itg-mini-btn{padding:6px 10px;font-size:12.5px}.itg-input-footer{padding:10px 16px}.itg-result-card{padding:12px 14px}.itg-result-text{font-size:15.5px}.itg-symbol-group{padding:14px}.itg-mini-copy{align-self:flex-end}}