:root{--gmat-ink-50: #f8f9fa;--gmat-ink-100: #e9ecef;--gmat-ink-200: #dee2e6;--gmat-ink-300: #ced4da;--gmat-ink-400: #adb5bd;--gmat-ink-500: #6c757d;--gmat-ink-600: #495057;--gmat-ink-700: #343a40;--gmat-ink-800: #212529;--gmat-ink-900: #0a0c0e;--gmat-mark-400: #9aab8e;--gmat-mark-500: #6b7c5e;--gmat-paper-50: #ffffff;--gmat-paper-100: #fafafa;--gmat-paper-200: #f5f5f5;--gmat-paper-300: #eeeeee;--gmat-paper-400: #e0e0e0;--gmat-error-50: #fff5f5;--gmat-error-500: #ff6b6b;--gmat-error-700: #c92a2a;--gmat-font-sans: "IBM Plex Sans", "Noto Sans TC", system-ui, sans-serif;--gmat-font-serif: "Playfair Display", "Noto Serif TC", Georgia, serif;--gmat-font-mono: "IBM Plex Mono", "Courier New", monospace;--gmat-shadow-panel: 0 4px 24px rgba(0, 0, 0, .12)}@keyframes gmat-fadeIn{0%{opacity:0}to{opacity:1}}@keyframes gmat-slideUp{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}@keyframes gmat-slideInRight{0%{transform:translate(100%)}to{transform:translate(0)}}@keyframes gmat-slideOutRight{0%{transform:translate(0)}to{transform:translate(100%)}}@keyframes gmat-slideInUp{0%{transform:translateY(100%)}to{transform:translateY(0)}}@keyframes gmat-bounce{0%,80%,to{transform:scale(0)}40%{transform:scale(1)}}@keyframes gmat-fadeInUp{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.gmat-trigger-btn{position:fixed;bottom:24px;right:24px;z-index:9998;display:flex;align-items:center;gap:10px;padding:12px 20px;background:var(--gmat-ink-900);color:var(--gmat-paper-50);border:2px solid var(--gmat-ink-900);border-radius:0;cursor:pointer;font-family:var(--gmat-font-sans);font-size:13px;font-weight:600;letter-spacing:1.5px;text-transform:uppercase;transition:all .2s ease;box-shadow:0 2px 12px #00000026}.gmat-trigger-btn:hover{background:var(--gmat-ink-800);box-shadow:0 4px 20px #0003}.gmat-trigger-btn svg{width:20px;height:20px;flex-shrink:0}.gmat-trigger-btn.gmat-hidden{display:none}.gmat-panel{position:fixed;top:0;right:0;bottom:0;width:400px;z-index:9999;background:var(--gmat-paper-50);border-left:2px solid var(--gmat-ink-900);box-shadow:var(--gmat-shadow-panel);display:flex;flex-direction:column;animation:gmat-slideInRight .3s ease-out;font-family:var(--gmat-font-sans);box-sizing:border-box}.gmat-panel.gmat-closing{animation:gmat-slideOutRight .25s ease-in forwards}.gmat-panel *,.gmat-panel *:before,.gmat-panel *:after{box-sizing:border-box}.gmat-overlay{position:fixed;inset:0;z-index:9998;background:#0006;animation:gmat-fadeIn .2s ease-out}.gmat-header{border-bottom:2px solid var(--gmat-ink-900);padding:20px 24px;background:var(--gmat-ink-900);color:var(--gmat-paper-50);flex-shrink:0}.gmat-header-top{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:12px}.gmat-header-label{font-size:10px;font-weight:700;letter-spacing:2px;text-transform:uppercase;color:var(--gmat-mark-400);margin-bottom:6px}.gmat-header-title{font-family:var(--gmat-font-serif);font-weight:900;font-size:28px;line-height:1.15;letter-spacing:-.5px;margin:0}.gmat-header-actions{display:flex;align-items:center;gap:8px;flex-shrink:0}.gmat-btn-icon{background:none;border:none;color:var(--gmat-paper-50);cursor:pointer;padding:4px;display:flex;align-items:center;justify-content:center;transition:color .15s;opacity:.8}.gmat-btn-icon:hover{color:var(--gmat-mark-400);opacity:1}.gmat-btn-icon svg{width:22px;height:22px}.gmat-header-counter{display:flex;align-items:baseline;gap:8px}.gmat-counter-number{font-family:var(--gmat-font-serif);font-weight:900;font-size:40px;line-height:1}.gmat-counter-label{font-size:13px;font-weight:500;letter-spacing:.5px;opacity:.8}.gmat-consult-btn{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;background:var(--gmat-paper-50);color:var(--gmat-ink-900);border:1.5px solid var(--gmat-paper-50);border-radius:0;font-family:var(--gmat-font-sans);font-size:11px;font-weight:700;text-decoration:none;cursor:pointer;transition:all .15s;letter-spacing:1px;text-transform:uppercase}.gmat-consult-btn:hover{background:transparent;color:var(--gmat-paper-50);border-color:var(--gmat-paper-50);text-decoration:none}.gmat-actions-bar{padding:10px 24px;border-bottom:1px solid var(--gmat-paper-400);background:var(--gmat-paper-100);flex-shrink:0}.gmat-btn-text{background:none;border:none;font-family:var(--gmat-font-sans);font-size:12px;font-weight:600;color:var(--gmat-ink-600);text-transform:uppercase;letter-spacing:.8px;cursor:pointer;padding:2px 0;transition:color .15s}.gmat-btn-text:hover{color:var(--gmat-ink-900)}.gmat-error{padding:12px 24px;background:var(--gmat-error-50);border-bottom:2px solid var(--gmat-error-500);color:var(--gmat-error-700);font-size:13px;font-family:var(--gmat-font-sans);flex-shrink:0}.gmat-messages{flex:1;overflow-y:auto;padding:16px;background:var(--gmat-paper-50);scroll-behavior:smooth}.gmat-messages::-webkit-scrollbar{width:4px}.gmat-messages::-webkit-scrollbar-track{background:transparent}.gmat-messages::-webkit-scrollbar-thumb{background:var(--gmat-ink-300);border-radius:2px}.gmat-empty{height:100%;padding:24px;display:flex;flex-direction:column;justify-content:center;overflow-y:auto}.gmat-feature-cards{display:flex;flex-direction:column;gap:16px}.gmat-feature-card{background:var(--gmat-paper-100);border:1px solid var(--gmat-paper-400);padding:16px 20px;animation:gmat-fadeInUp .4s ease-out both}.gmat-feature-card:nth-child(1){animation-delay:0s}.gmat-feature-card:nth-child(2){animation-delay:.1s}.gmat-feature-card:nth-child(3){animation-delay:.2s}.gmat-feature-card-title{font-family:var(--gmat-font-serif);font-weight:700;font-size:17px;color:var(--gmat-ink-900);margin:0 0 6px}.gmat-feature-card-desc{font-size:13px;color:var(--gmat-ink-600);line-height:1.6;margin:0}.gmat-suggestions-section{margin-top:28px}.gmat-suggestions-label{font-size:10px;font-weight:700;letter-spacing:2px;text-transform:uppercase;color:var(--gmat-ink-500);margin-bottom:12px}.gmat-suggestions-list{display:flex;flex-direction:column;gap:8px}.gmat-suggestion-btn{display:block;width:100%;text-align:left;font-family:var(--gmat-font-sans);font-size:13px;color:var(--gmat-ink-700);background:var(--gmat-paper-50);border:1px solid var(--gmat-paper-400);padding:10px 14px;cursor:pointer;transition:all .15s;line-height:1.5}.gmat-suggestion-btn:hover{background:var(--gmat-paper-200);border-color:var(--gmat-mark-500);color:var(--gmat-ink-900)}.gmat-message-row{display:flex;margin-bottom:12px;animation:gmat-fadeInUp .3s ease-out}.gmat-message-row.gmat-user{justify-content:flex-end}.gmat-message-row.gmat-assistant{justify-content:flex-start}.gmat-message-bubble{max-width:82%;padding:10px 14px;border-radius:12px;font-size:14px;line-height:1.6;word-break:break-word}.gmat-user .gmat-message-bubble{background:var(--gmat-ink-800);color:var(--gmat-paper-50);border-bottom-right-radius:4px}.gmat-assistant .gmat-message-bubble{background:var(--gmat-paper-200);color:var(--gmat-ink-800);border-bottom-left-radius:4px}.gmat-assistant .gmat-message-bubble p{margin:0 0 8px}.gmat-assistant .gmat-message-bubble p:last-child{margin-bottom:0}.gmat-assistant .gmat-message-bubble h1,.gmat-assistant .gmat-message-bubble h2,.gmat-assistant .gmat-message-bubble h3,.gmat-assistant .gmat-message-bubble h4{font-family:var(--gmat-font-serif);margin:12px 0 6px;font-weight:700;line-height:1.3}.gmat-assistant .gmat-message-bubble h1{font-size:18px}.gmat-assistant .gmat-message-bubble h2{font-size:16px}.gmat-assistant .gmat-message-bubble h3{font-size:15px}.gmat-assistant .gmat-message-bubble ul,.gmat-assistant .gmat-message-bubble ol{margin:6px 0;padding-left:20px}.gmat-assistant .gmat-message-bubble li{margin-bottom:4px}.gmat-assistant .gmat-message-bubble code{font-family:var(--gmat-font-mono);background:var(--gmat-paper-300);padding:1px 5px;border-radius:3px;font-size:.9em}.gmat-assistant .gmat-message-bubble pre{background:var(--gmat-ink-800);color:var(--gmat-paper-100);padding:12px;border-radius:6px;overflow-x:auto;margin:8px 0}.gmat-assistant .gmat-message-bubble pre code{background:none;padding:0;color:inherit}.gmat-assistant .gmat-message-bubble blockquote{border-left:3px solid var(--gmat-mark-500);margin:8px 0;padding:4px 12px;color:var(--gmat-ink-600)}.gmat-assistant .gmat-message-bubble strong{font-weight:700;color:var(--gmat-ink-900)}.gmat-assistant .gmat-message-bubble a{color:var(--gmat-mark-500);text-decoration:underline}.gmat-assistant .gmat-message-bubble table{border-collapse:collapse;margin:8px 0;width:100%;font-size:13px}.gmat-assistant .gmat-message-bubble th,.gmat-assistant .gmat-message-bubble td{border:1px solid var(--gmat-paper-400);padding:6px 10px;text-align:left}.gmat-assistant .gmat-message-bubble th{background:var(--gmat-paper-300);font-weight:600}.gmat-loading-row{display:flex;justify-content:flex-start;margin-bottom:12px}.gmat-loading-bubble{background:var(--gmat-paper-200);border-radius:12px 12px 12px 4px;padding:14px 18px;display:flex;gap:6px}.gmat-loading-dot{width:8px;height:8px;background:var(--gmat-ink-400);border-radius:50%;animation:gmat-bounce 1.4s infinite ease-in-out both}.gmat-loading-dot:nth-child(1){animation-delay:-.32s}.gmat-loading-dot:nth-child(2){animation-delay:-.16s}.gmat-loading-dot:nth-child(3){animation-delay:0s}.gmat-input-area{border-top:2px solid var(--gmat-ink-900);background:var(--gmat-paper-50);padding:16px;flex-shrink:0}.gmat-input-row{display:flex;align-items:flex-end;gap:10px}.gmat-input-wrapper{flex:1}.gmat-textarea{width:100%;padding:10px 14px;border:1px solid var(--gmat-ink-200);border-radius:8px;resize:none;font-family:var(--gmat-font-sans);font-size:14px;line-height:1.5;color:var(--gmat-ink-800);background:var(--gmat-paper-50);outline:none;transition:border-color .15s}.gmat-textarea:focus{border-color:var(--gmat-ink-600)}.gmat-textarea:disabled{background:var(--gmat-paper-200);cursor:not-allowed;color:var(--gmat-ink-400)}.gmat-textarea::placeholder{color:var(--gmat-ink-400)}.gmat-input-meta{display:flex;justify-content:space-between;margin-top:6px;font-size:11px;color:var(--gmat-ink-500)}.gmat-send-btn{padding:10px 18px;background:var(--gmat-ink-900);color:var(--gmat-paper-50);border:none;border-radius:8px;font-family:var(--gmat-font-sans);font-size:14px;font-weight:600;cursor:pointer;transition:background .15s;height:42px;flex-shrink:0}.gmat-send-btn:hover{background:var(--gmat-ink-800)}.gmat-send-btn:disabled{background:var(--gmat-ink-300);cursor:not-allowed}@media(max-width:767px){.gmat-trigger-btn{bottom:16px;right:16px;padding:10px 16px;font-size:12px}.gmat-panel{inset:auto 0 0;width:100%;height:85vh;max-height:85vh;border-left:none;border-top:2px solid var(--gmat-ink-900);border-radius:16px 16px 0 0;animation:gmat-slideInUp .3s ease-out}.gmat-panel.gmat-closing{animation:gmat-slideOutRight .25s ease-in forwards}.gmat-header{padding:16px 20px;border-radius:14px 14px 0 0}.gmat-header-title{font-size:22px}.gmat-counter-number{font-size:32px}.gmat-messages{padding:12px}.gmat-empty{padding:16px}.gmat-input-area{padding:12px}.gmat-message-bubble{max-width:88%}}.gmat-hidden{display:none!important}