:root{--color-primary: #6366f1;--color-accent: #a5b4fc;--color-bg: #0f0f0f;--color-surface: #191919;--color-surface2: #222222;--color-border: #2c2c2c;--color-text: #f0f0f0;--color-text-muted: #888888;--color-tag-bg: #1e1e1e;--color-tag-hover: #282828;--sidebar-width: 280px;--topbar-h: 56px;--transition: .2s ease;--radius: 10px;--font: "Segoe UI", system-ui, -apple-system, sans-serif}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body{height:100%}body{font-family:var(--font);background:var(--color-bg);color:var(--color-text);overflow:hidden}.layout{display:flex;height:100vh;width:100%}.sidebar{width:var(--sidebar-width);flex-shrink:0;background:var(--color-surface);border-right:1px solid var(--color-border);display:flex;flex-direction:column;overflow:hidden;z-index:200}.sidebar-header{display:flex;align-items:center;justify-content:space-between;padding:20px 20px 16px;border-bottom:1px solid var(--color-border)}.brand-logo{height:36px;max-width:160px;object-fit:contain}.sidebar-close{display:none;background:none;border:none;color:var(--color-text-muted);font-size:18px;cursor:pointer;padding:4px 8px;border-radius:6px;line-height:1}.sidebar-close:hover{background:var(--color-surface2);color:var(--color-text)}.sidebar-nav{flex:1;overflow-y:auto;padding:12px 0;scrollbar-width:thin;scrollbar-color:var(--color-border) transparent}.sidebar-nav::-webkit-scrollbar{width:4px}.sidebar-nav::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:2px}.nav-section{margin-bottom:4px}.nav-section-btn{width:100%;background:none;border:none;color:var(--color-text-muted);font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;padding:10px 20px 8px;text-align:left;cursor:pointer;display:flex;align-items:center;gap:8px;transition:color var(--transition)}.nav-section-btn:hover{color:var(--color-text)}.nav-arrow{display:inline-block;font-size:8px;transition:transform var(--transition)}.nav-arrow.open{transform:rotate(90deg)}.nav-list{list-style:none}.nav-list li a{display:block;padding:7px 20px 7px 36px;color:var(--color-text-muted);text-decoration:none;font-size:13.5px;border-left:2px solid transparent;transition:color var(--transition),background var(--transition),border-color var(--transition);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.nav-list li a:hover{color:var(--color-text);background:var(--color-surface2)}.nav-list li a.active{color:var(--color-primary);border-left-color:var(--color-primary);background:color-mix(in srgb,var(--color-primary) 8%,transparent)}.sidebar-footer{padding:14px 20px;border-top:1px solid var(--color-border);display:flex;flex-direction:column;gap:2px}.sidebar-footer span{font-size:11px;color:var(--color-text-muted);line-height:1.4}.brand-name{font-weight:700;color:var(--color-accent)!important}.main-wrapper{flex:1;display:flex;flex-direction:column;min-width:0}.topbar{height:var(--topbar-h);background:var(--color-surface);border-bottom:1px solid var(--color-border);display:flex;align-items:center;gap:14px;padding:0 24px;flex-shrink:0}.hamburger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:6px;border-radius:6px}.hamburger:hover{background:var(--color-surface2)}.hamburger span{display:block;width:20px;height:2px;background:var(--color-text);border-radius:1px}.content{flex:1;overflow:hidden;display:flex;flex-direction:column}.center-screen{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;text-align:center}.center-screen p{font-size:14px;color:var(--color-text-muted);max-width:400px}.center-screen h2{font-size:20px;color:var(--color-text)}.error-icon{font-size:48px;color:#f87171}.spinner{width:40px;height:40px;border:3px solid var(--color-border);border-top-color:var(--color-primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.welcome-screen{height:100%;display:flex;align-items:center;justify-content:center}.welcome-inner{text-align:center;max-width:480px}.welcome-logo{height:64px;max-width:240px;object-fit:contain;margin-bottom:32px;opacity:.9}.welcome-inner h1{font-size:24px;font-weight:700;color:var(--color-text);margin-bottom:12px}.welcome-inner p{font-size:15px;color:var(--color-text-muted);line-height:1.6}.card-two-col{display:grid;grid-template-columns:1fr clamp(340px,30vw,480px);height:100%;animation:fadeIn .2s ease}@keyframes fadeIn{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.card-spec{overflow-y:auto;padding:28px 32px;display:flex;flex-direction:column;gap:16px;scrollbar-width:thin;scrollbar-color:var(--color-border) transparent;border-right:1px solid var(--color-border)}.card-spec::-webkit-scrollbar{width:4px}.card-spec::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:2px}.card-preview{display:flex;flex-direction:column;align-items:center;padding:24px 20px;overflow-y:auto;background:color-mix(in srgb,var(--color-surface) 60%,var(--color-bg));scrollbar-width:thin;scrollbar-color:var(--color-border) transparent}.card-preview::-webkit-scrollbar{width:4px}.card-preview::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:2px}.preview-empty{flex:1;display:flex;align-items:center;justify-content:center;text-align:center}.preview-empty 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14px;background:var(--color-tag-bg);border:1px solid var(--color-border);border-radius:20px;font-size:13px;color:var(--color-text);text-decoration:none;cursor:pointer;transition:background var(--transition),border-color var(--transition),color var(--transition)}.tag:hover{background:var(--color-tag-hover);border-color:var(--color-primary);color:var(--color-accent)}.no-data{font-size:13px;color:var(--color-text-muted);font-style:italic}.mechanism-desc{font-size:14.5px;color:var(--color-text);line-height:1.7}.spec-section-text{font-size:14px;color:var(--color-text-muted);line-height:1.7;white-space:pre-line}.spec-list-bullets{list-style:none;display:flex;flex-direction:column;gap:7px}.spec-list-bullets li{font-size:14px;color:var(--color-text);line-height:1.5;padding-left:16px;position:relative}.spec-list-bullets li:before{content:"";position:absolute;left:0;top:8px;width:5px;height:5px;border-radius:50%;background:var(--color-primary)}.spec-section--warning{border-color:color-mix(in srgb,#f59e0b 40%,transparent);background:color-mix(in srgb,#f59e0b 5%,var(--color-surface))}.spec-section--warning .section-title{color:#f59e0b}.preview-select-wrap{width:100%;display:flex;align-items:center;gap:10px;margin-bottom:16px}.preview-count{flex-shrink:0;font-size:11px;font-weight:700;color:var(--color-text-muted);background:var(--color-surface2);border:1px solid var(--color-border);border-radius:20px;padding:3px 9px;white-space:nowrap}.preview-select{flex:1;margin-bottom:0;padding:8px 36px 8px 12px;background:var(--color-surface2);border:1px solid var(--color-border);border-radius:var(--radius);color:var(--color-text);font-size:13px;font-family:var(--font);cursor:pointer;-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23888' d='M6 8L1 3h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;transition:border-color var(--transition)}.preview-select:hover{border-color:var(--color-primary)}.preview-select:focus{outline:none;border-color:var(--color-primary)}.preview-select option{background:#1e1e1e}.preview-open-btn{display:flex;align-items:center;justify-content:center;gap:7px;margin-top:14px;padding:9px 16px;width:100%;background:none;border:1px solid var(--color-border);border-radius:var(--radius);color:var(--color-text-muted);font-size:13px;font-family:var(--font);text-decoration:none;cursor:pointer;transition:border-color var(--transition),color var(--transition),background var(--transition)}.preview-open-btn svg{width:14px;height:14px;flex-shrink:0}.preview-open-btn:hover{border-color:var(--color-primary);color:var(--color-text);background:color-mix(in srgb,var(--color-primary) 6%,transparent)}.mockup-phone{height:min(calc(100vh - 160px),100%);max-width:100%;aspect-ratio:9 / 20;border-radius:36px;border:10px solid #1a1a1a;box-shadow:0 0 0 2px #444,0 20px 50px 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iframe{width:100%;height:100%;border:none;display:block}.mockup-image{width:100%;max-width:320px;border-radius:var(--radius);overflow:hidden;border:1px solid var(--color-border)}.mockup-image img{width:100%;height:auto;display:block}.instruction-page{max-width:760px;margin:0 auto;padding:28px 32px;overflow-y:auto;height:100%;scrollbar-width:thin;scrollbar-color:var(--color-border) transparent;animation:fadeIn .2s ease}.instruction-page::-webkit-scrollbar{width:4px}.instruction-page::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:2px}.instruction-header{margin-bottom:32px}.instruction-header h1{font-size:26px;font-weight:700;color:var(--color-text);line-height:1.3}.instruction-header .instruction-subtitle{margin-top:8px;font-size:14px;color:var(--color-text-muted);line-height:1.6}.instruction-blocks{display:flex;flex-direction:column;gap:24px}.instruction-block-heading h2{font-size:18px;font-weight:700;color:var(--color-text);padding-bottom:10px;border-bottom:1px solid var(--color-border)}.instruction-block-heading h3{font-size:15px;font-weight:700;color:var(--color-primary);margin-bottom:4px}.instruction-block-text p{font-size:14px;color:var(--color-text);line-height:1.8;white-space:pre-line}.instruction-block-image figure{margin:0;border-radius:var(--radius);overflow:hidden;border:1px solid var(--color-border);background:var(--color-surface)}.instruction-block-image img{width:100%;height:auto;display:block}.instruction-block-image figcaption{padding:8px 14px;font-size:12px;color:var(--color-text-muted);border-top:1px solid var(--color-border)}.sidebar-overlay{display:none;position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;z-index:150}.sidebar-overlay.visible{display:block}.search-trigger{display:flex;align-items:center;gap:7px;padding:5px 12px 5px 8px;background:var(--color-surface2);border:1px solid var(--color-border);border-radius:8px;color:var(--color-text-muted);font-size:13px;font-family:var(--font);cursor:pointer;transition:border-color var(--transition),color var(--transition);flex-shrink:0;margin-left:auto}.search-trigger svg{width:15px;height:15px}.search-trigger:hover{border-color:var(--color-primary);color:var(--color-text)}.search-trigger kbd{margin-left:4px;padding:1px 5px;background:var(--color-border);border-radius:4px;font-size:11px;font-family:var(--font);color:var(--color-text-muted)}@media (max-width: 600px){.search-trigger span,.search-trigger kbd{display:none}.search-trigger{padding:6px}}.search-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;z-index:1000;display:flex;align-items:flex-start;justify-content:center;padding-top:80px;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.search-box{width:100%;max-width:560px;background:var(--color-surface);border:1px solid var(--color-border);border-radius:14px;overflow:hidden;box-shadow:0 24px 60px #00000080;margin:0 16px}.search-input-wrap{display:flex;align-items:center;gap:10px;padding:14px 16px;border-bottom:1px solid var(--color-border)}.search-icon{width:18px;height:18px;color:var(--color-text-muted);flex-shrink:0}.search-input{flex:1;background:none;border:none;outline:none;font-size:15px;font-family:var(--font);color:var(--color-text)}.search-input::placeholder{color:var(--color-text-muted)}.search-esc{padding:2px 7px;background:var(--color-surface2);border:1px solid var(--color-border);border-radius:5px;font-size:11px;color:var(--color-text-muted);cursor:pointer;font-family:var(--font);flex-shrink:0}.search-results{list-style:none;max-height:360px;overflow-y:auto;padding:6px;scrollbar-width:thin;scrollbar-color:var(--color-border) transparent}.search-result{display:flex;align-items:flex-start;gap:10px;padding:9px 12px;border-radius:8px;cursor:pointer;transition:background var(--transition)}.search-result.active{background:var(--color-surface2)}.search-result .card-badge{flex-shrink:0;margin-top:2px}.search-result-body{display:flex;flex-direction:column;gap:3px;min-width:0}.search-result-name{font-size:14px;color:var(--color-text)}.search-result-context{font-size:12px;color:var(--color-text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.search-result-field{color:var(--color-text-muted);font-weight:600}.search-mark{background:color-mix(in srgb,var(--color-primary) 30%,transparent);color:var(--color-accent);border-radius:2px;padding:0 1px}.search-empty{padding:20px;text-align:center;font-size:13px;color:var(--color-text-muted)}.mobile-tabs{display:none}@media (max-width: 1024px){.mobile-tabs{display:flex;border-bottom:1px solid var(--color-border);background:var(--color-surface);flex-shrink:0;grid-column:1 / -1}.mobile-tab{flex:1;padding:12px 16px;background:none;border:none;border-bottom:2px solid transparent;color:var(--color-text-muted);font-size:13px;font-weight:600;cursor:pointer;transition:color var(--transition),border-color var(--transition);margin-bottom:-1px}.mobile-tab.active{color:var(--color-primary);border-bottom-color:var(--color-primary)}.mobile-tab:hover:not(.active){color:var(--color-text)}}@media (max-width: 1024px){.card-two-col{grid-template-columns:1fr;grid-template-rows:auto 1fr;height:100%;overflow:hidden}.card-spec{border-right:none;overflow-y:auto}.card-preview{overflow-y:auto}.mobile-hidden{display:none!important}.content{overflow:hidden}}@media (max-width: 768px){.sidebar{position:fixed;inset:0 auto 0 0;transform:translate(-100%);box-shadow:4px 0 24px #0006;transition:transform var(--transition)}.sidebar.open{transform:translate(0)}.sidebar-close{display:block}.hamburger{display:flex}.card-spec{padding:20px 16px}.card-title{font-size:22px}}@media (max-width: 480px){.spec-row{grid-template-columns:1fr;gap:2px}}@media print{.sidebar,.topbar,.hamburger,.card-preview{display:none!important}body{overflow:visible;background:#fff;color:#111}.main-wrapper{height:auto}.content{overflow:visible}.card-two-col{grid-template-columns:1fr;height:auto}.card-spec{border:none;padding:0;overflow:visible}.spec-section{border:1px solid #ccc;break-inside:avoid}.tag{border:1px solid #ccc;color:#333}.card-title{color:#111}.section-title{color:var(--color-primary)}}