@import"https://fonts.googleapis.com/css2?family=Noto+Sans+TC:wght@300;400;500;700&display=swap";:root{--bg-light: #ffffff;--bg-secondary: #f8fafc;--bg-card: rgba(255, 255, 255, .95);--bg-glass: rgba(255, 255, 255, .8);--primary: #f97316;--primary-hover: #ea580c;--secondary: #f59e0b;--accent: #d97706;--text-main: #0f172a;--text-muted: #64748b;--border: rgba(15, 23, 42, .08);--border-hover: rgba(249, 115, 22, .3);--shadow-sm: 0 1px 3px rgba(0, 0, 0, .1);--shadow-lg: 0 4px 20px rgba(0, 0, 0, .06), 0 2px 8px rgba(0, 0, 0, .04);--glass-border: 1px solid rgba(15, 23, 42, .08);--header-height: 70px}*{margin:0;padding:0;box-sizing:border-box}body{margin:0;background:linear-gradient(135deg,#fff,#faf5ff,#fdf2f8);background-attachment:fixed;color:var(--text-main);font-family:Noto Sans TC,system-ui,-apple-system,Microsoft JhengHei,sans-serif;-webkit-font-smoothing:antialiased;min-height:100vh}.app{display:flex;flex-direction:column;min-height:100vh}.header{height:var(--header-height);width:100%;background-color:var(--bg-glass);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);display:flex;justify-content:center;align-items:center;padding:0 24px;border-bottom:var(--glass-border);position:sticky;top:0;z-index:100;box-shadow:0 2px 8px #0000000a}.header .logo{height:40px;width:auto;transition:transform .3s ease;position:absolute;left:24px}.header .logo:hover{transform:scale(1.05)}.header h1{font-size:1.25rem;font-weight:600;color:var(--text-main);letter-spacing:-.02em}.homepage{width:100%;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;flex:1}.footer{width:100%;background-color:var(--bg-light);text-align:center;padding:24px;margin-top:auto;border-top:var(--border);color:var(--text-muted)}.footer h3{margin-top:8px;font-size:.9rem;font-weight:500;color:var(--primary)}.fade-in{animation:fadeInPage .6s cubic-bezier(.4,0,.2,1)}@keyframes fadeInPage{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.subject-detail{width:100%;padding:30px;display:flex;flex-direction:column;align-items:center;max-width:1200px;margin:0 auto}.subject-detail-header{width:100%;background:linear-gradient(135deg,var(--secondary),var(--primary));border-radius:16px;padding:40px 20px;margin-bottom:24px;display:flex;flex-direction:column;align-items:center;box-shadow:var(--shadow-lg);color:#fff}.subject-detail-header h1{font-size:2.5rem;font-weight:800;color:#fff;letter-spacing:-.02em;margin-bottom:.5rem;text-shadow:0 2px 4px rgba(0,0,0,.1)}.subject-detail-functions{width:100%;display:flex;flex-direction:row;justify-content:center;gap:32px}.subject-detail-left{width:35%;display:flex;flex-direction:column;gap:24px}.subject-detail-right{width:65%;display:flex;flex-direction:column;gap:24px}.card-style{background:#fff;border-radius:12px;padding:24px;box-shadow:var(--shadow-sm);border:1px solid var(--border)}button{background:#fff;color:var(--text-main);border:1px solid var(--border);border-radius:8px;padding:10px 20px;font-size:14px;font-weight:500;cursor:pointer;transition:all .2s ease;font-family:inherit}button:hover:not(:disabled){background:var(--bg-secondary);border-color:var(--border-hover);transform:translateY(-1px);box-shadow:0 4px 8px #0000000d}button:active:not(:disabled){transform:translateY(0)}button.primary{background:var(--primary);color:#fff;border:none;box-shadow:0 4px 12px #f9731640}button.primary:hover:not(:disabled){background:var(--primary-hover);box-shadow:0 6px 16px #f9731659}button:disabled{opacity:.6;cursor:not-allowed;transform:none}@media (max-width: 900px){.subject-detail-functions{flex-direction:column;align-items:center;gap:24px}.subject-detail-right{width:100%;order:1}.subject-detail-left{width:100%;order:2}.subject-detail{padding:20px}}@media (max-width: 600px){.header{padding:0 12px;justify-content:flex-start;gap:8px}.header .logo{height:32px;position:static;flex-shrink:0}.header h1{font-size:.9rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.subject-detail{padding:12px}.subject-detail-header{padding:20px 12px;border-radius:12px}.subject-detail-header h1{font-size:1.5rem}.subject-detail-right,.subject-detail-left{gap:12px}}.prompt-function input[type=checkbox],.prompt-function input[type=radio],.chapter-item input[type=checkbox]{accent-color:var(--primary);width:18px;height:18px;cursor:pointer;border-radius:4px;border:1px solid var(--border);transition:all .2s ease}.prompt{width:100%;margin-top:30px;padding:0 0 0 10px;display:flex;flex-direction:column;gap:24px}.volume{display:flex;flex-direction:column;gap:12px;width:100%}.chapter-item{background:transparent;padding:0;border-radius:0;border:none;box-shadow:none}.prompt-generator{width:100%;display:flex;flex-direction:column;gap:20px;margin:0 auto}.prompt-card{background:#fff;border-radius:16px;padding:40px;box-shadow:0 4px 20px #0000000d;border:1px solid rgba(0,0,0,.05);display:flex;flex-direction:column;gap:32px}.prompt-card .prompt-function{background:transparent;border-radius:0;padding:0;box-shadow:none;border:none;transition:none}.prompt-card .prompt-function:hover{transform:none;box-shadow:none}.prompt-row{display:flex;gap:40px;align-items:flex-start;width:100%;justify-content:space-between}.prompt-col{display:flex;flex-direction:column;gap:16px}.volume-col{flex:1;min-width:200px;max-width:45%}.chapter-col{flex:1}.prompt-card h3{margin:0 0 16px;font-size:1rem;font-weight:600;color:var(--text-main);display:flex;align-items:center;gap:8px}.chapter-label{margin-left:8px;font-weight:400;color:var(--text-main);font-size:1rem}.section-label{margin-left:6px;font-weight:400;color:var(--text-main);font-size:1rem}.point-label{margin-left:6px;color:var(--text-main)}.expand-btn{width:20px;height:20px;margin-right:4px;border:none;background:none;cursor:pointer;font-weight:700;font-size:16px;color:var(--primary);display:inline-flex;align-items:center;justify-content:center;padding:0;transition:transform .2s ease}.expand-btn:hover{transform:scale(1.1);background:transparent;box-shadow:none;border:none}.textarea-note,.textarea-result{width:100%;padding:16px;border-radius:12px;border:1px solid #e5e7eb;background-color:#f9fafb;font-size:1rem;line-height:1.6;color:#374151;resize:vertical;transition:all .2s ease;outline:none;min-height:120px}.textarea-result{min-height:400px;background-color:#fafafa}.textarea-note:focus,.textarea-result:focus{background-color:#fff;border-color:#f97316;box-shadow:0 0 0 3px #f973161a}.textarea-note::placeholder,.textarea-result::placeholder{color:#9ca3af}.button-container{display:flex;justify-content:center;padding:10px 0}.copy-toast{position:fixed;bottom:40px;left:50%;transform:translate(-50%) translateY(20px);background:#1f2937;color:#fff;padding:12px 24px;border-radius:50px;font-size:.95rem;font-weight:500;opacity:0;transition:all .3s cubic-bezier(.16,1,.3,1);z-index:1000;box-shadow:0 10px 30px #0003;pointer-events:none}.copy-toast.show{transform:translate(-50%) translateY(0);opacity:1}@media (max-width: 900px){.prompt-row{gap:24px}.volume-col{max-width:50%}}@media (max-width: 768px){.prompt-card{padding:24px;gap:24px}.prompt-row{flex-direction:column;gap:24px}.volume-col,.chapter-col{width:100%;max-width:100%;flex:auto}.prompt{padding:14px 10px}.custom-select{margin-left:0}}.prompt-title{text-align:center;margin-bottom:24px;display:flex;flex-direction:column;align-items:center;gap:8px}.title-icon{font-size:2.5rem;filter:drop-shadow(0 4px 6px rgba(0,0,0,.1));animation:float 3s ease-in-out infinite}.title-text{font-size:1.5rem;font-weight:700;color:var(--text-main);margin:0;display:flex;flex-direction:row;align-items:center;justify-content:center;gap:12px;flex-wrap:wrap}.title-text .highlight{background:linear-gradient(135deg,#f97316,#ec4899);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;font-weight:800;position:relative;display:inline-block}.title-text .sub-text{color:#4b5563;font-weight:600}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-6px)}}@media (max-width: 768px){.title-text{flex-direction:column;gap:4px;font-size:1.25rem}.title-icon{font-size:2rem}}.item-selector{width:100%;max-width:800px;background:#fff;margin:0 auto;border-radius:999px;border:1px solid var(--border);box-shadow:var(--shadow-sm);padding:6px;overflow:visible}.item-selector-cards{display:flex;justify-content:space-between;align-items:center;position:relative;width:100%;flex-wrap:nowrap;overflow:visible}.item-selector-highlight{position:absolute;top:0;left:0;height:100%;border-radius:999px;background:linear-gradient(135deg,var(--secondary),var(--primary));box-shadow:0 4px 12px #f973164d;transition:all .3s cubic-bezier(.4,0,.2,1);z-index:0;pointer-events:none}.item-selector-card{flex:1;padding:10px;border-radius:999px;display:flex;justify-content:center;align-items:center;text-align:center;cursor:pointer;transition:all .3s ease;position:relative;z-index:1;color:var(--text-muted);color:#4b5563}.item-selector-card:hover{color:var(--text-main)}.item-selector-card.active{color:#fff;font-weight:700}.item-selector-card-title{font-size:17px;font-weight:600;margin:0}@media (max-width: 900px){.item-selector{max-width:100%}.item-selector-card-title{font-size:15px}.item-selector-card{padding:8px 6px}}@media (max-width: 600px){.item-selector{width:100%;border-radius:20px;padding:10px}.item-selector-cards{flex-direction:column;align-items:center;gap:8px;flex-wrap:wrap}.item-selector-card{width:100%;margin:0;padding:12px;border-radius:12px}.item-selector-highlight{width:100%!important;left:0!important;border-radius:12px}.item-selector-card-title{font-size:16px}}.item-template{width:100%;margin:20px auto;padding:10px;display:grid;grid-template-columns:repeat(2,1fr);gap:20px;align-items:start}.item-template-card{background:#fff;border-radius:16px;border:1px solid var(--border);box-shadow:0 4px 12px #0000000d;padding:20px;display:flex;flex-direction:column;transition:all .2s ease}.item-template-card:hover{box-shadow:0 8px 16px #0000001a;transform:translateY(-2px)}.card-header{display:flex;justify-content:space-between;align-items:center}.card-title-group{display:flex;align-items:center;gap:12px}.card-icon{display:flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:10px;background:var(--bg-secondary);color:var(--primary);background:#fff3e0}.item-template h3{margin:0;font-size:1.1rem;color:var(--text-main);font-weight:700}.toggle-switch{position:relative;display:inline-block;width:44px;height:24px}.toggle-switch input{opacity:0;width:0;height:0}.slider{position:absolute;cursor:pointer;inset:0;background-color:#e2e8f0;transition:.4s;border-radius:34px}.slider:before{position:absolute;content:"";height:18px;width:18px;left:3px;bottom:3px;background-color:#fff;transition:.4s;border-radius:50%;box-shadow:0 2px 4px #0003}input:checked+.slider{background-color:var(--primary)}input:checked+.slider:before{transform:translate(20px)}.card-content{transition:max-height .3s ease-in-out,opacity .3s ease-in-out,margin-top .3s ease-in-out;max-height:500px;opacity:1;margin-top:16px;overflow:hidden}.card-content.disabled{max-height:0;opacity:0;margin-top:0;pointer-events:none}.item-textarea,.input-box{width:100%;min-height:80px;padding:10px;border-radius:8px;border:1px solid var(--border);font-size:.95rem;resize:none;line-height:1.6;font-family:inherit}.subject-scores{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;width:100%;margin-top:8px}.subject-score-item{display:flex;align-items:center;gap:10px;cursor:pointer}.subject-score-label{font-size:1rem;font-weight:600;color:var(--text-main);white-space:nowrap;width:3rem;text-align:right}.subject-score-input{flex:1;min-width:0;width:100%;padding:10px;border-radius:8px;border:1px solid var(--border);font-size:1rem;font-family:inherit;transition:all .2s ease;background:#fff;text-align:center}.subject-score-input:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 3px #f973161a}.subject-score-input:disabled{background-color:#f9fafb;cursor:not-allowed;color:#9ca3af}@media (max-width: 900px){.item-template{grid-template-columns:1fr;gap:16px}.subject-scores{grid-template-columns:repeat(2,1fr)}}@media (max-width: 600px){.item-template{grid-template-columns:1fr;padding:5px}.subject-scores{grid-template-columns:1fr;gap:12px}.item-template-card{padding:16px}}.custom-select{position:relative;width:100%;cursor:pointer;-webkit-user-select:none;user-select:none;font-size:medium}.custom-select-trigger{padding:9px 13px;border:1px solid var(--border);border-radius:8px;background:#fff;color:var(--text-muted);display:flex;align-items:center;justify-content:space-between;gap:8px;transition:all .2s ease;min-height:42px}.custom-select-trigger.multi{padding:6px 10px;align-items:flex-start;flex-wrap:wrap}.custom-select-content{flex:1;min-width:0;display:flex;align-items:center}.custom-select-placeholder{color:var(--text-muted)}.custom-select-tags{display:flex;flex-wrap:wrap;gap:6px;max-width:100%}.custom-select-tag{display:inline-flex;align-items:center;gap:4px;padding:4px 8px;background:linear-gradient(135deg,#fff7ed,#ffedd5);border:1px solid #fed7aa;border-radius:6px;font-size:13px;color:#c2410c;font-weight:500;max-width:150px;animation:tagAppear .2s ease}@keyframes tagAppear{0%{opacity:0;transform:scale(.8)}to{opacity:1;transform:scale(1)}}.custom-select-tag-remove{display:flex;align-items:center;justify-content:center;width:16px;height:16px;padding:0;margin-left:2px;border:none;background:transparent;color:#ea580c;font-size:14px;font-weight:700;cursor:pointer;border-radius:50%;transition:all .15s ease;line-height:1}.custom-select-tag-remove:hover{background:#ea580c;color:#fff}.custom-select-actions{display:flex;align-items:center;gap:4px;flex-shrink:0;margin-left:8px}.custom-select-clear{display:flex;align-items:center;justify-content:center;width:20px;height:20px;padding:0;border:none;background:#f3f4f6;color:#6b7280;font-size:14px;font-weight:700;cursor:pointer;border-radius:50%;transition:all .15s ease;line-height:1}.custom-select-clear:hover{background:#ef4444;color:#fff}.custom-select-label{flex:1}.custom-select-arrow{font-size:.75em;color:var(--text-muted);transition:transform .2s,color .2s;pointer-events:none}.custom-select-arrow.open{transform:rotate(180deg);color:var(--primary)}.custom-select-trigger.has-value{background:#fff;color:var(--text-main);border-color:var(--border-hover)}.custom-select-trigger:hover{background:var(--bg-secondary);border-color:var(--primary);color:var(--text-main);box-shadow:0 4px 12px #0000000d}.custom-select-trigger.open{background:#fff;border-color:var(--primary);color:var(--text-main);box-shadow:0 4px 16px #f9731626}.custom-options{position:absolute;top:calc(100% + 4px);left:0;right:0;background:#fff;border:1px solid var(--border);border-radius:8px;box-shadow:0 4px 20px #0000001a;z-index:1050;padding:4px 0;list-style:none;margin:0;max-height:0;opacity:0;overflow:hidden;transition:max-height .25s cubic-bezier(.4,0,.2,1),opacity .25s ease}.custom-options.open{max-height:280px;opacity:1;overflow-y:auto;border-color:var(--primary)}.custom-option{padding:10px 12px;color:var(--text-main);cursor:pointer;transition:background .15s,color .15s;display:flex;align-items:center;gap:10px}.custom-option:hover{background:#fff7ed;color:var(--primary)}.custom-options.multi .custom-option.selected{background:#fff7ed;color:#c2410c}.custom-options.multi .custom-option.selected:hover{background:#ffedd5}.custom-options:not(.multi) .custom-option.selected{background:var(--primary);color:#fff}.custom-option-checkbox{display:flex;align-items:center;justify-content:center;width:18px;height:18px;border:2px solid #d1d5db;border-radius:4px;background:#fff;transition:all .15s ease;flex-shrink:0}.custom-option-checkbox.checked{background:var(--primary);border-color:var(--primary)}.custom-option-checkbox .checkmark{color:#fff;font-size:12px;font-weight:700;line-height:1}.custom-option:hover .custom-option-checkbox:not(.checked){border-color:var(--primary)}.custom-option-label{flex:1}.custom-select.disabled{opacity:.6;cursor:not-allowed;pointer-events:none}.custom-select.disabled .custom-select-trigger{background:#f3f4f6;border-color:#e5e7eb;color:#9ca3af}.custom-option.other-option{border-top:1px dashed #e5e7eb;margin-top:4px;padding-top:12px}.custom-option.other-option .custom-option-label{font-style:italic;color:#6b7280}.custom-option.other-option.selected .custom-option-label{color:#c2410c;font-style:normal}.custom-option-other-input{display:block;padding:8px 12px;background:#fefce8;border-top:1px solid #fde68a;cursor:default;user-select:auto!important;-webkit-user-select:auto!important;list-style:none}.custom-other-input{display:block;width:100%;padding:8px 12px;border:2px solid #fbbf24;border-radius:6px;font-size:14px;color:#333;background:#fff;transition:border-color .2s ease,box-shadow .2s ease;outline:none;cursor:text!important;-webkit-user-select:text!important;user-select:text!important;pointer-events:auto!important;-webkit-appearance:none;appearance:none;-moz-appearance:textfield}.custom-other-input:focus{border-color:var(--primary);box-shadow:0 0 0 3px #f9731626}.custom-other-input::placeholder{color:#9ca3af;font-style:italic}.custom-select-tag.custom-tag{background:linear-gradient(135deg,#e0f2fe,#bae6fd);border-color:#7dd3fc;color:#0369a1}.custom-select-tag.custom-tag .custom-select-tag-remove{color:#0284c7}.custom-select-tag.custom-tag .custom-select-tag-remove:hover{background:#0284c7;color:#fff}.custom-option-tag-input{display:block;padding:10px 12px;background:linear-gradient(135deg,#f0fdf4,#dcfce7);border-top:1px dashed #86efac;list-style:none;margin-top:4px}.custom-tag-input-wrapper{display:flex;gap:8px;align-items:center}.custom-tag-input{flex:1;padding:8px 12px;border:2px solid #86efac;border-radius:6px;font-size:14px;color:#333;background:#fff;transition:border-color .2s ease,box-shadow .2s ease;outline:none;cursor:text!important;-webkit-user-select:text!important;user-select:text!important;pointer-events:auto!important}.custom-tag-input:focus{border-color:#22c55e;box-shadow:0 0 0 3px #22c55e26}.custom-tag-input::placeholder{color:#9ca3af;font-style:italic}.custom-tag-add-btn{padding:8px 16px;background:linear-gradient(135deg,#22c55e,#16a34a);color:#fff;border:none;border-radius:6px;font-size:14px;font-weight:500;cursor:pointer;transition:all .2s ease;white-space:nowrap}.custom-tag-add-btn:hover:not(:disabled){background:linear-gradient(135deg,#16a34a,#15803d);transform:translateY(-1px);box-shadow:0 2px 8px #22c55e4d}.custom-tag-add-btn:disabled{background:#d1d5db;cursor:not-allowed;transform:none;box-shadow:none}.bubble-button-container{position:relative;display:inline-block}.button{background-color:var(--button-color);border:none;color:var(--text-color);font-size:16px;font-weight:600;text-decoration:none;-webkit-user-select:none;user-select:none;letter-spacing:1px;width:100%;height:100%;border-radius:8px;box-shadow:0 4px 6px #0000001a;display:inline-flex;align-items:center;justify-content:center;transition:all .1s ease-out;cursor:pointer}.button:active{transform:scale(.95)}.button--bubble{position:relative;z-index:2}.button.button:hover,.button.button--bubble:hover{background-color:var(--button-color);filter:brightness(1.1)}.button--bubble__container{position:relative;display:inline-block;width:100%;height:100%}.button--bubble__effect-container{position:absolute;display:block;width:200%;height:400%;top:-150%;left:-50%;pointer-events:none}.circle{position:absolute;width:25px;height:25px;border-radius:50%;background-color:var(--button-color);transition:background .1s ease-out}.circle.top-left{top:40%;left:27%}.circle.bottom-right{bottom:40%;right:27%}.effect-button{position:absolute;width:50%;height:25%;top:50%;left:25%;z-index:1;transform:translateY(-50%);background-color:var(--button-color);transition:background .1s ease-out}.goo{position:absolute;visibility:hidden;width:1px;height:1px}.academic-system{width:100%;max-width:1200px;background-color:ivory;margin:30px auto;border-radius:999px;border:1px solid var(--border);box-shadow:var(--shadow-sm);padding:8px;background:#fff}.academic-system-cards{display:flex;justify-content:space-between;align-items:center;width:100%;margin:0 auto;position:relative}.academic-system-card{flex:1;border-radius:999px;display:flex;justify-content:center;align-items:center;text-align:center;padding:12px 20px;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);position:relative;z-index:1;color:var(--text-muted)}.academic-system-card:hover{color:var(--text-main)}.tab-indicator{position:absolute;left:0;top:0;height:100%;background:linear-gradient(135deg,var(--secondary),var(--primary));border-radius:999px;box-shadow:0 4px 12px #f973164d;transition:width .3s cubic-bezier(.4,0,.2,1),transform .3s cubic-bezier(.4,0,.2,1);z-index:0}.academic-system-card.active{color:#fff;font-weight:600}.card-title{font-size:16px;font-weight:500;text-align:left;position:relative;z-index:1}@media (max-width: 900px){.academic-system{max-width:100%;margin:20px auto}.card-title{font-size:14px}.academic-system-card{padding:10px 12px}}@media (max-width: 600px){.academic-system{border-radius:20px;padding:16px;width:90%}.academic-system-cards{flex-direction:column;align-items:center;gap:8px}.academic-system-card{width:100%;margin:0;padding:12px;border-radius:12px}.tab-indicator{height:100%;border-radius:12px}}.introduce{width:100%;max-width:1200px;margin:30px auto;padding:0 20px;display:flex;flex-direction:column;gap:32px}.introduce-header{width:100%;display:flex;align-items:center;gap:24px;padding:32px;background:#fff;border-radius:16px;box-shadow:var(--shadow-sm);border:1px solid var(--border)}.introduce-icon{width:64px;height:64px;object-fit:contain}.introduce-title{font-size:1.75rem;font-weight:700;color:var(--text-main);margin-bottom:8px;text-align:left}.introduce-desc{font-size:1.1rem;color:var(--text-muted)}.introduce-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px}.introduce-card{background:#fff;border-radius:16px;padding:24px;border:1px solid var(--border);transition:all .2s ease;display:flex;flex-direction:column;gap:16px}.introduce-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--primary)}.introduce-card-header{display:flex;align-items:center;gap:16px}.introduce-card-header .introduce-icon{width:48px;height:48px}.card-icon{font-size:30px;margin-bottom:10px}.card-title{font-size:1.25rem;font-weight:600;color:var(--text-main);margin-bottom:4px}.card-desc{font-size:.9rem;color:var(--text-muted)}.card-intro{font-size:1rem;color:var(--text-muted);line-height:1.6;text-align:left}@media (max-width: 900px){.introduce{padding:0 16px}.introduce-header{padding:24px;gap:16px}.introduce-cards{grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}}@media (max-width: 600px){.introduce-header{flex-direction:column;text-align:center;padding:20px}.introduce-title{font-size:1.5rem}.introduce-desc{font-size:1rem}.introduce-cards{grid-template-columns:1fr;gap:16px}.introduce-card{padding:20px}}.subject{width:100%;display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:24px;padding:20px;max-width:1200px;margin:0 auto 80px}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.subject-card{background:#fff;padding:16px 32px;border-radius:12px;border:1px solid var(--border);box-shadow:var(--shadow-sm);cursor:pointer;transition:all .2s cubic-bezier(.4,0,.2,1);display:flex;align-items:center;justify-content:center;min-width:160px}.subject-card h3{margin:0;font-size:1.1rem;font-weight:500;color:var(--text-main);transition:color .2s}.subject-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--primary)}.subject-card:hover h3{color:var(--primary)}@media (max-width: 900px){.subject{grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:16px;padding:16px}.subject-card{padding:14px 24px}.subject-card h3{font-size:1rem}}@media (max-width: 600px){.subject{margin-bottom:40px;gap:12px;padding:12px;grid-template-columns:repeat(2,1fr)}.subject-card{padding:12px 16px;min-width:auto}.subject-card h3{font-size:.95rem}}