:root{--primary-color:#1abc9c;--primary-hover:#16a085;--bg-color:#f5f5f5;--card-bg:#ffffff;--text-color:#333333;--border-color:#e0e0e0;--shadow:0 2px 8px rgba(0, 0, 0, 0.1)}@media (prefers-color-scheme:dark){:root{--bg-color:#121212;--card-bg:#1e1e1e;--text-color:#e0e0e0;--border-color:#333333;--shadow:0 2px 8px rgba(0, 0, 0, 0.2)}}*{margin:0;padding:0;box-sizing:border-box}body,html{margin:0;padding:0;height:100%;overflow:hidden}body{font-family:'Noto Sans SC',sans-serif;background-color:var(--bg-color);color:var(--text-color);line-height:1.6;transition:background-color .3s ease}.container{margin:0 auto;padding:20px;height:calc(100vh - 60px);margin-top:60px;overflow-y:auto;box-sizing:border-box;padding-bottom:80px;scrollbar-width:thin;scrollbar-color:var(--primary-color) transparent}.header{text-align:center;margin-bottom:40px}.header h1{font-size:2.5em;margin-bottom:20px;color:var(--text-color)}.description{background-color:var(--card-bg);padding:20px;border-radius:12px;margin-bottom:30px;box-shadow:var(--shadow)}.description p{margin-bottom:10px}.stats{text-align:center;margin:30px 0;padding:20px;background-color:var(--card-bg);border-radius:12px;box-shadow:var(--shadow)}.stats div{font-size:1.1em}.category-nav{margin:30px 0;display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:15px;padding:0 10px}.category-nav a{display:flex;align-items:center;justify-content:center;padding:12px 20px;background-color:var(--card-bg);color:var(--text-color);text-decoration:none;border-radius:8px;transition:all .3s ease;border:1px solid var(--border-color);text-align:center;font-size:.95em}.category-nav a:hover{background-color:var(--primary-color);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow)}.coupon-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px;margin-top:30px;scroll-behavior:smooth}.category-card{background-color:var(--card-bg);border-radius:12px;padding:20px;box-shadow:var(--shadow);cursor:pointer;transition:all .3s ease}.category-card:hover{transform:translateY(-2px);box-shadow:0 4px 12px rgba(0,0,0,.15)}.category-card h2{color:var(--primary-color);margin-bottom:10px;font-size:1.3em}.category-card .brand-count{color:var(--text-color);font-size:.9em;opacity:.8}.category-content{display:none;margin-top:15px;padding-top:15px}.category-card.category_active .category-content{display:block}.category-header .toggle-icon{transition:transform .3s ease}.category-card.category_active .category-header .toggle-icon{transform:rotate(180deg)}.coupon-list{list-style:none}.coupon-item{padding:10px 0;border-bottom:1px solid var(--border-color)}.coupon-item:last-child{border-bottom:none}.coupon-item a{color:var(--text-color);text-decoration:none;display:block;transition:color .3s ease}.coupon-item a:hover{color:var(--primary-color)}.loading{text-align:center;padding:40px}.loading-spinner{width:50px;height:50px;border:5px solid var(--border-color);border-top:5px solid var(--primary-color);border-radius:50%;animation:spin 1s linear infinite;margin:0 auto 20px}@keyframes spin{0%{transform:rotate(0)}100%{transform:rotate(360deg)}}@media (max-width:768px){body{padding:10px}.topbar{padding:8px 12px}.topbar h1{font-size:1.1em}.topbar-right{gap:8px}.info-button{padding:6px 12px;font-size:.9em}.github-link{font-size:1.3em}.category-nav{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px;padding:0 5px}.category-nav a{padding:8px 15px;font-size:.9em}.stats{margin:15px 0;padding:15px;font-size:.9em}.stats div{margin:8px 0}.category-card{padding:15px}.category-card h2{font-size:1.1em}.coupon-item{padding:8px 0;font-size:.9em}.modal-content{padding:15px;width:95%}.modal-content h2{font-size:1.2em;margin-bottom:10px}.description p{font-size:.9em;margin-bottom:8px}.close-button{top:5px;right:5px}.loading-spinner{width:40px;height:40px;border-width:4px}.loading p{font-size:.9em}}@media (max-width:360px){.topbar h1{font-size:1em}.info-button{padding:4px 8px;font-size:.85em}.github-link{font-size:1.2em}}.topbar{position:fixed;top:0;left:0;right:0;height:60px;background-color:var(--card-bg);padding:0 20px;box-shadow:var(--shadow);display:flex;justify-content:space-between;align-items:center;z-index:1000;gap:15px}.topbar-right{display:flex;align-items:center;gap:15px}.github-link{color:var(--text-color);font-size:1.5em;transition:color .3s ease;display:flex;align-items:center;text-decoration:none}.github-link:hover{color:var(--primary-color);text-decoration:none}.info-button{background-color:var(--primary-color);color:#fff;border:none;padding:8px 16px;border-radius:20px;cursor:pointer;transition:all .3s ease}.info-button:hover{background-color:var(--primary-hover)}.modal{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background-color:rgba(0,0,0,.5);z-index:1001;align-items:center;justify-content:center;width:100vw;height:100vh}.modal-content{background-color:var(--card-bg);padding:20px;border-radius:12px;max-width:600px;width:90%;max-height:80vh;overflow-y:auto;position:relative;scroll-behavior:smooth;scrollbar-width:auto;scrollbar-color:var(--primary-color) var(--bg-color)}.close-button{position:absolute;top:10px;right:10px;background:0 0;border:none;font-size:2.5em;cursor:pointer;color:var(--text-color)}@media (max-width:768px){.close-button{font-size:2.5em;top:5px;right:5px}}@media (max-width:768px){.topbar-right{gap:10px}}@media (min-width:769px){*{scrollbar-width:thin;scrollbar-color:var(--primary-color) var(--bg-color)}::-webkit-scrollbar{width:12px;height:12px;-webkit-appearance:none}::-webkit-scrollbar-track{background:var(--bg-color);border-radius:6px;margin:2px}::-webkit-scrollbar-thumb{background:var(--primary-color);border-radius:6px;border:3px solid var(--bg-color);min-height:40px;-webkit-appearance:none}::-webkit-scrollbar-thumb:hover{background:var(--primary-hover);border:2px solid var(--bg-color)}}@media (max-width:768px){.container,.coupon-modal-body{scrollbar-width:none;-ms-overflow-style:none}.container::-webkit-scrollbar,.coupon-modal-body::-webkit-scrollbar{display:none}}.container{margin:0 auto;padding:20px;height:calc(100vh - 60px);margin-top:60px;overflow-y:auto;box-sizing:border-box;padding-bottom:80px;scrollbar-width:thin;scrollbar-color:var(--primary-color) transparent}@media (max-width:768px){.container{padding:15px;padding-bottom:90px;height:calc(100vh - 50px);margin-top:50px}.coupon-grid{margin-bottom:40px}}.back-to-top{position:fixed;bottom:20px;right:20px;background-color:var(--primary-color);color:#fff;width:50px;height:50px;border-radius:50%;display:none;justify-content:center;align-items:center;cursor:pointer;box-shadow:var(--shadow);transition:all .3s ease;border:none;z-index:999;opacity:.9}.back-to-top:hover{background-color:var(--primary-hover);transform:translateY(-3px)}@media (max-width:768px){.back-to-top{bottom:25px;right:15px;width:50px;height:50px}}.coupon-modal{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background-color:rgba(0,0,0,.5);z-index:1001;align-items:center;justify-content:center}.coupon-modal-content{background-color:var(--card-bg);padding:20px;border-radius:12px;max-width:600px;width:90%;max-height:80vh;overflow:hidden;position:relative;display:flex;flex-direction:column}.coupon-modal-body{overflow-y:auto;padding-right:5px;margin-right:-5px;flex:1;scrollbar-width:thin;scrollbar-color:var(--primary-color) transparent}.coupon-modal-body::-webkit-scrollbar{width:6px;height:6px}.coupon-modal-body::-webkit-scrollbar-track{background:0 0;border-radius:3px}.coupon-modal-body::-webkit-scrollbar-thumb{background-color:var(--primary-color);border-radius:3px;border:none}.coupon-modal-body::-webkit-scrollbar-thumb:hover{background-color:var(--primary-hover)}.coupon-modal .coupon-list{margin:0;padding:0}.coupon-modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;padding-bottom:10px;border-bottom:1px solid var(--border-color)}.coupon-modal-header h2{margin:0;color:var(--primary-color)}.coupon-modal-close{background:0 0;border:none;font-size:1.5em;cursor:pointer;color:var(--text-color)}.category-card{background-color:var(--card-bg);border-radius:12px;padding:20px;box-shadow:var(--shadow);cursor:pointer;transition:all .3s ease}.category-card:hover{transform:translateY(-2px);box-shadow:0 4px 12px rgba(0,0,0,.15)}.category-card h2{color:var(--primary-color);margin-bottom:10px;font-size:1.3em}.category-card .brand-count{color:var(--text-color);font-size:.9em;opacity:.8}.container{scrollbar-width:thin;scrollbar-color:var(--primary-color) transparent}.container::-webkit-scrollbar{width:6px}.container::-webkit-scrollbar-track{background:0 0}.container::-webkit-scrollbar-thumb{background-color:var(--primary-color);border-radius:3px}.container::-webkit-scrollbar-thumb:hover{background-color:var(--primary-hover)}.container::-webkit-scrollbar-button{display:none}.coupon-modal-body::-webkit-scrollbar{width:6px}.coupon-modal-body::-webkit-scrollbar-track{background:0 0}.coupon-modal-body::-webkit-scrollbar-thumb{background-color:var(--primary-color);border-radius:3px}.coupon-modal-body::-webkit-scrollbar-thumb:hover{background-color:var(--primary-hover)}.coupon-modal-body::-webkit-scrollbar-button{display:none}.search-container{position:fixed;top:0;left:0;right:0;padding:10px 20px;background-color:var(--card-bg);box-shadow:var(--shadow);z-index:1002;display:none;transform:translateY(-100%);transition:transform .3s ease}.search-container.active_search{display:flex;align-items:center;gap:10px;transform:translateY(0)}.search-box{flex:1;padding:8px 15px;border:1px solid var(--border-color);border-radius:20px;background-color:var(--card-bg);color:var(--text-color);font-size:.9em;outline:0}.search-close{color:var(--text-color);font-size:1.5em;cursor:pointer;padding:5px}.search-close:hover{color:var(--primary-color)}@media (max-width:768px){.search-container{padding:8px 15px}}.category-container{margin:30px 0;background-color:var(--card-bg);border-radius:12px;box-shadow:var(--shadow);overflow:hidden}.category-header{padding:15px 20px;background-color:var(--card-bg);border-bottom:1px solid var(--border-color);cursor:pointer;display:flex;justify-content:space-between;align-items:center;user-select:none}.category-header h2{margin:0;color:var(--primary-color);font-size:1.2em;display:flex;align-items:center;gap:10px}.category-header .count{color:var(--text-color);font-size:.9em;opacity:.8}.category-content{padding:20px;display:none}.category-container.category_active .category-content{display:block}.category-header .toggle-icon{transition:transform .3s ease}.category-container.category_active .category-header .toggle-icon{transform:rotate(180deg)}@keyframes highlight{0%,100%{background-color:var(--card-bg)}50%{background-color:var(--primary-color);color:#fff}}.category-card.highlight{animation:highlight .6s ease-in-out;animation-iteration-count:3}.category-card.highlight h2{color:inherit}.coupon-grid{scroll-behavior:smooth}.search-icon:hover{color:var(--primary-color)}.search-close,.search-toggle{background:0 0;border:none;color:var(--text-color);font-size:1.5em;cursor:pointer;padding:5px;display:flex;align-items:center;justify-content:center;transition:color .3s ease}.search-toggle:hover{color:var(--primary-color)}