:root{--color-primary:#1a6bff;--color-primary-light:#4d8cff;--color-text:#1a1a2e;--color-text-secondary:#5a6a7e;--color-border:#e8ecf1;--header-height:88px;--max-width:1320px;--transition-fast:.2s ease;--gradient-primary:linear-gradient(135deg,#1a6bff,#6c5ce7)}
*{box-sizing:border-box}html{scroll-behavior:smooth;font-size:16px}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Helvetica,Arial,sans-serif;color:var(--color-text);background:#fff;-webkit-font-smoothing:antialiased;line-height:1.6;overflow-x:hidden}a{color:inherit;text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--color-primary)}button,input{font:inherit}button{cursor:pointer}
.container{max-width:var(--max-width);margin:0 auto;padding:0 20px}.header-wrapper{position:fixed;top:0;left:0;right:0;z-index:1000;background:#fff;border-bottom:1px solid var(--color-border);box-shadow:0 1px 2px #0000000a}.site-header{display:flex;align-items:center;height:var(--header-height);padding:0 32px;gap:10px}.logo{display:flex;align-items:center;gap:12px;margin-right:20px}.logo-icon{display:flex;align-items:center;justify-content:center;width:36px;height:36px}.logo-text{font-size:1.15rem;font-weight:700;color:var(--color-text);letter-spacing:.5px;white-space:nowrap}.nav-group{flex:1;display:flex;align-items:center;gap:5px;min-width:0}.nav-item{display:inline-flex;align-items:center;height:44px;line-height:44px;padding:0 16px;margin:0 2px;border-radius:8px;font-size:1.0625rem;color:var(--color-text-secondary);white-space:nowrap}.nav-item:hover,.nav-item.is-active{color:var(--color-primary)}.nav-arrow{font-size:15px;margin-left:3px;line-height:1;transform:translateY(-2px)}.header-contact{display:none;align-items:center;gap:64px;flex-shrink:0;margin-right:16px;height:100%}.header-contact__brand{height:100%;width:auto;display:block}.header-contact__hotline{display:flex;align-items:center;gap:8px;color:teal;font-size:1.125rem;font-weight:600;white-space:nowrap}.header-contact__hotline img{height:48px;width:auto}.mobile-toggle,.mobile-menu{display:none}
.nav-dropdown{position:relative;display:flex;align-items:center;height:100%}.nav-dropdown:hover>.nav-item{color:var(--color-primary)}.nav-dropdown .nav-arrow{transition:transform .2s ease}.nav-dropdown:hover .nav-arrow{transform:translateY(-2px) rotate(180deg)}.nav-panel{position:absolute;z-index:30;top:calc(100% - 1px);left:0;display:grid;grid-template-columns:repeat(3,minmax(170px,1fr));gap:22px;width:650px;padding:22px 24px;border:1px solid var(--color-border);border-top:2px solid var(--color-primary);background:#fff;box-shadow:0 12px 28px #1a1a2e24;visibility:hidden;opacity:0;transform:translateY(-5px);transition:opacity .16s ease,transform .16s ease,visibility .16s ease}.nav-dropdown:hover .nav-panel,.nav-dropdown:focus-within .nav-panel{visibility:visible;opacity:1;transform:translateY(0)}.nav-panel--news{width:390px;grid-template-columns:repeat(2,minmax(140px,1fr))}.nav-panel-column{min-width:0}.nav-panel-column h3{margin:0 0 10px;padding-bottom:8px;border-bottom:1px solid var(--color-border);color:var(--color-text);font-size:15px;line-height:1.3}.nav-panel-column a{display:block;padding:5px 0;color:var(--color-text-secondary);font-size:14px;font-weight:400;line-height:1.45}.nav-panel-column a:hover{color:var(--color-primary)}
.tc-products{background:#fff;padding-top:var(--header-height)}.tc-scroll-progress{position:fixed;top:0;left:0;width:100%;height:2px;background:#1a1a1a;transform-origin:left;transform:scaleX(0);z-index:9999;pointer-events:none}.tc-hero{background:#fff url('/site-assets/hero-bg.jpg') center 30%/cover no-repeat;padding:56px 0 0;position:relative;overflow:hidden;min-height:320px}.tc-hero:before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,#ffffff8c,#ffffff4d 60%,#fff0);pointer-events:none;z-index:0}.tc-hero:after{content:"";position:absolute;left:0;right:0;bottom:0;height:18%;background:linear-gradient(180deg,#fff0,#ffffffb3 60%,#fff);pointer-events:none;z-index:0}.tc-hero-inner,.tc-search-wrap{position:relative;z-index:1}.tc-hero-inner{display:flex;align-items:center;justify-content:space-between;min-height:160px}.tc-hero-text{flex:1}.tc-hero-title{font-size:2.2rem;font-weight:700;color:#1a1a1a;margin:0 0 8px;line-height:1.2;letter-spacing:-.02em}.tc-hero-sub{font-size:1rem;color:#888;margin:0;line-height:1.6}.tc-hero-visual{flex-shrink:0;width:220px;margin-left:40px;aspect-ratio:4/3;display:flex;align-items:center;justify-content:center}.tc-hero-visual img{width:100%;height:100%;object-fit:contain;animation:heroImgFadeInUp .8s ease-out both}@keyframes heroImgFadeInUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}.tc-search-wrap{padding:28px 0 32px}.tc-search-box{display:flex;align-items:center;width:100%;max-width:600px;height:46px;background:#f9f9f9;border:1px solid #e8e8e8;border-radius:8px;padding:0 16px;transition:border-color .25s,box-shadow .25s}.tc-search-box:focus-within{background:#fff;border-color:#c0c0c0;box-shadow:0 0 0 3px #0000000a,0 0 20px #00000005}.tc-search-icon{font-size:24px;color:#bbb;margin-right:10px;line-height:1;transform:rotate(-20deg)}.tc-search-input{flex:1;border:0;outline:0;font-size:.95rem;color:#1a1a1a;background:transparent;height:100%;min-width:0}.tc-search-input::placeholder{color:#c0c0c0}.tc-quick-links{display:flex;align-items:center;gap:8px;margin-top:10px;max-width:600px;flex-wrap:wrap}.tc-ql-label{font-size:.82rem;color:#bbb;white-space:nowrap}.tc-ql-item{font-size:.82rem;color:#888;padding:2px 10px;border-radius:4px;background:transparent;border:1px solid #eee;transition:all .2s}.tc-ql-item:hover{color:#1a1a1a;border-color:#ccc;box-shadow:0 0 12px #0000000f}
.tc-category-section{background:#fff;padding:48px 0 56px}.tc-section-title{text-align:center;font-size:1.6rem;font-weight:700;color:#1a1a1a;margin:0 0 28px;letter-spacing:-.02em}.tc-cat-layout{display:flex;gap:32px;align-items:flex-start}.tc-cat-sidebar{width:200px;flex-shrink:0}.tc-cat-sidebar-inner{background:#fff;border:1px solid #f0f0f0;border-radius:10px;position:sticky;top:92px;height:calc(var(--product-list-height,340px) + 58px);min-height:398px;max-height:none}.tc-cat-sidebar-header{padding:14px 18px;font-size:.95rem;font-weight:600;color:#1a1a1a;border-bottom:1px solid #f0f0f0}.tc-cat-list-scroll{height:var(--product-list-height,340px);min-height:340px;max-height:none;overflow-y:auto;overscroll-behavior:contain}.tc-cat-list-scroll::-webkit-scrollbar{width:4px}.tc-cat-list-scroll::-webkit-scrollbar-thumb{background:#ddd;border-radius:4px}.tc-cat-tree{padding:4px 0}.ptn-row{display:flex;align-items:center;width:100%;padding:6px 0 6px 12px;border:0;border-left:3px solid transparent;background:transparent;text-align:left;cursor:pointer;color:#1a1a1a;transition:background-color .15s ease,color .15s ease,border-color .15s ease}.ptn-row:hover{background:#f5f7fa;color:#1a6bff}.ptn-row.active{color:#1a6bff;border-left-color:#1a6bff;background:#1a6bff0f;font-weight:600}.ptn-arrow{display:inline-flex;align-items:center;justify-content:center;width:16px;height:16px;margin-right:4px;flex-shrink:0;color:#b0b0b0;font-size:22px;line-height:12px}.ptn-row.active .ptn-arrow{color:#1a6bff}.ptn-name{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;line-height:1.4}.ptn-row[data-level="1"] .ptn-name{font-size:15px;font-weight:500}.ptn-row[data-level="2"]{padding-left:28px}.ptn-row[data-level="3"]{padding-left:44px}.ptn-row[data-level="4"]{padding-left:60px}.ptn-row.active .ptn-name{font-weight:600}.ptn-divider{padding:14px 14px 4px;color:#bbb;font-size:11px}.tc-cat-main{flex:1;min-width:0}.tc-product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;min-height:200px}.tc-product-card{display:flex;flex-direction:column;min-width:0;background:#fff;border:1px solid #eef0f4;border-radius:10px;overflow:hidden;cursor:pointer;transition:box-shadow .2s,transform .2s}.tc-product-card:hover{box-shadow:0 8px 24px #00000014;transform:translateY(-2px)}.tc-product-card[hidden]{display:none}.tc-product-card__cover{position:relative;aspect-ratio:4/3;background:#f5f7fa;display:flex;align-items:center;justify-content:center;overflow:hidden;color:#c0c4cc}.tc-product-card__cover img{width:100%;height:100%;object-fit:cover}.tc-product-card__body{display:flex;flex-direction:column;gap:6px;padding:12px 14px 14px;min-width:0}.tc-product-card__name{font-size:.98rem;font-weight:600;color:#1a1a1a;line-height:1.4;min-height:2.8em;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.tc-product-card:hover .tc-product-card__name{color:#002fa7}.tc-product-card__model{font-size:.8rem;color:#888;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.tc-product-card__specs{display:flex;flex-direction:column;gap:3px;margin:0}.tc-product-card__specs>div{display:flex;gap:8px;font-size:.8rem;line-height:1.5;color:#555;height:19.2px}.tc-product-card__specs dt{flex-shrink:0;width:76px;color:#999;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.tc-product-card__specs dd{flex:1;min-width:0;margin:0;color:#444;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.tc-product-card__specs .tc-product-card__spec--empty{visibility:hidden}.tc-product-card__scenario{margin-top:2px;font-size:.8rem;line-height:1.5;color:#555;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.tc-product-card__scenario span{font-weight:600;color:#666}.tc-empty{text-align:center;padding:48px;color:#8c9db5}.tc-pagination{text-align:center;margin-top:24px}.tc-pagination button{min-width:32px;height:32px;margin:0 3px;border:0;border-radius:4px;background:#f5f7fa;color:#5a6a7e}.tc-pagination button.is-current{background:#1a6bff;color:#fff}
.site-footer{background:#f5f5f5;color:#333}.footer-main{padding:60px 30px 40px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.5fr;gap:40px;align-items:flex-start}.footer-logo{display:flex;align-items:center;gap:10px;font-size:1.2rem;font-weight:600;margin-bottom:16px}.footer-logo img{width:28px;height:28px}.footer-desc{color:#666;margin:0 0 20px;line-height:1.7;font-size:.9rem}.footer-contact-item{display:flex;align-items:center;gap:10px;margin:0 0 12px;color:#666;font-size:.9rem}.footer-col h4{font-size:1rem;font-weight:600;margin:0 0 20px;color:#1a1a2e}.footer-col a{display:block;color:#555;margin-bottom:12px;font-size:.9rem}.footer-cta-text{color:#666;font-size:.9rem;margin:0 0 16px}.footer-cta-btn{display:inline-flex!important;align-items:center;gap:6px;padding:10px 24px;background:var(--gradient-primary);border-radius:6px;color:#fff!important;font-weight:500;font-size:.95rem}.footer-bottom{background:#ececec;border-top:1px solid #d8d8d8;padding:20px 0}.footer-bottom-inner{display:flex;justify-content:center;align-items:center;flex-wrap:wrap;gap:8px;color:#666;font-size:.85rem;text-align:center}.footer-bottom-inner a{color:inherit}
@media (min-width:1400px){.header-contact{display:flex}}@media (max-width:1399px){.site-header{padding:0 24px}.nav-item{padding:0 10px}}@media (max-width:992px){:root{--header-height:64px}.site-header{padding:0 16px}.nav-group,.header-contact{display:none}.mobile-toggle{display:flex;flex-direction:column;justify-content:center;gap:4px;margin-left:auto;width:36px;height:36px;border:0;background:transparent}.mobile-toggle span{display:block;width:20px;height:2px;background:#1a1a2e;border-radius:2px;transition:transform .25s,opacity .25s}.mobile-toggle.open span:nth-child(1){transform:translateY(6px) rotate(45deg)}.mobile-toggle.open span:nth-child(2){opacity:0}.mobile-toggle.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}.mobile-menu{position:fixed;display:flex;flex-direction:column;top:var(--header-height);left:0;right:0;background:#fff;border-top:1px solid #eee;box-shadow:0 4px 12px #0000001a;z-index:1001}.mobile-menu[hidden]{display:none}.mobile-menu a{padding:16px 24px;border-bottom:1px solid #f5f5f5;color:#333}.tc-hero{min-height:260px;padding:40px 0 0;background-position:center bottom}.tc-hero-inner{flex-direction:column;text-align:center}.tc-hero-visual{margin-left:0;margin-top:24px;width:200px;opacity:.85}.tc-hero-title{font-size:1.8rem}.tc-search-box{max-width:100%}.tc-cat-layout{flex-direction:column;align-items:stretch}.tc-cat-sidebar{width:100%}.tc-cat-sidebar-inner{position:static;min-height:0}.tc-cat-list-scroll{min-height:0;max-height:none}.tc-cat-tree{display:flex;flex-wrap:wrap;padding:8px}.ptn-row{width:auto;border-left:0;border-bottom:2px solid transparent;padding:8px 14px}.ptn-row.active{border-left:0;border-bottom-color:#1a1a1a}.tc-product-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.footer-grid{grid-template-columns:1fr 1fr;gap:30px}.brand-col{grid-column:1/-1}}@media (max-width:640px){.tc-product-grid{grid-template-columns:minmax(0,1fr)}.tc-hero{min-height:200px;padding:28px 0 0;background-position:center 30%}.tc-hero-title{font-size:1.5rem}.tc-hero-visual{width:160px}.tc-section-title{font-size:1.3rem}.footer-grid{grid-template-columns:1fr}.brand-col{grid-column:auto}}
/* Static nav arrow: use the same small stroke chevron as the Vue header. */
.nav-item .nav-arrow{display:inline-block;width:12px;height:12px;margin-left:4px;fill:currentColor;line-height:1;transform:translateY(1px);transition:transform .2s ease}
.nav-dropdown:hover .nav-item .nav-arrow{transform:translateY(1px) rotate(180deg)}
/* 静态官网导航：保持与线上 pcm-menu 相同的三级悬浮布局。 */
.nav-dropdown > .nav-panel.static-mega-menu { position: fixed; top: calc(var(--header-height) + 6px); left: 16px; display: none; width: 920px; max-width: calc(100vw - 32px); height: 460px; padding: 0; border: 0; border-radius: 12px; background: transparent; box-shadow: 0 12px 32px #0f172a24, 0 2px 8px #0f172a14; opacity: 1; visibility: visible; transform: none; overflow: visible; z-index: 1100; }
.nav-dropdown.is-open > .nav-panel.static-mega-menu, .nav-dropdown:hover > .nav-panel.static-mega-menu, .nav-dropdown:focus-within > .nav-panel.static-mega-menu { display: block; }
.pcm-inner { display: flex; width: 100%; height: 460px; overflow: hidden; border-radius: 12px; background: #fff; }
.pcm-side, .pcm-middle { flex: 0 0 auto; overflow-y: auto; padding: 14px 0; }
.pcm-side { width: 200px; background: #fbfcfe; }
.pcm-middle { width: 230px; border-left: 1px solid #eef1f6; border-right: 1px solid #eef1f6; }
.pcm-level3-column[hidden] { display: none; }
.pcm-level3-column { background: #fff; }
.nav-dropdown > .nav-panel.static-mega-menu.has-level3 { width: 1100px; }
.pcm-side ul, .pcm-middle ul { padding: 0; margin: 0; list-style: none; }
.pcm-level1-item, .pcm-level2-item { display: flex; align-items: center; justify-content: space-between; margin: 2px 0; padding: 10px 20px; color: #1a1a2e; font-size: 14px; line-height: 22.4px; cursor: pointer; }
.pcm-level1-item { font-weight: 500; }
.pcm-level1-item:hover, .pcm-level1-item.active, .pcm-level2-item:hover, .pcm-level2-item.active { background: #1a6bff0f; color: #1a6bff; }
.pcm-level1-arrow, .pcm-level2-arrow { font-size: 20px; font-style: normal; font-weight: 400; line-height: 1; }
.pcm-middle-header { margin: 0 0 6px; padding: 0 20px 10px; border-bottom: 1px dashed #f0f0f0; }
.pcm-col-title { display: block; color: #1a1a2e; font-size: 13px; font-weight: 600; line-height: 20.8px; }
.pcm-level2-item { padding: 10px 20px; }
.pcm-right { display: flex; flex: 1 1 0; min-width: 0; flex-direction: column; padding: 20px; background: #fff; }
.pcm-right-header { flex: 0 0 auto; padding: 0 0 16px; border-bottom: 1px dashed #f0f0f0; }
.pcm-right-title, .pcm-right-sub { display: block; }
.pcm-right-title { color: #1a1a2e; font-size: 14px; font-weight: 600; line-height: 22.4px; }
.pcm-right-sub { margin-top: 2px; color: #8c9db5; font-size: 12px; line-height: 19.2px; }
.pcm-right-body { display: flex; flex: 1 1 0; min-height: 0; padding-top: 12px; }
.pcm-level4 { display: grid; flex: 1 1 0; grid-template-columns: repeat(2, minmax(0, 1fr)); align-content: start; gap: 8px 16px; overflow-y: auto; }
.pcm-product-card { display: flex; min-width: 0; gap: 12px; padding: 10px; border-radius: 6px; color: inherit !important; text-decoration: none !important; }
.pcm-product-card:hover { background: #f5f7fa; }
.pcm-product-thumb { display: flex; flex: 0 0 48px; align-items: center; justify-content: center; width: 48px; height: 48px; overflow: hidden; border: 1px solid #f0f0f0; border-radius: 6px; background: #fff; color: #c0c4cc; }
.pcm-product-thumb img { width: 100%; height: 100%; object-fit: contain; }
.pcm-product-info { flex: 1 1 0; min-width: 0; }
.pcm-product-name { overflow: hidden; margin-bottom: 4px; color: #1a1a2e; font-size: 13px; font-weight: 500; line-height: 20.8px; text-overflow: ellipsis; white-space: nowrap; }
.pcm-product-brief { display: -webkit-box; overflow: hidden; color: #8c9db5; font-size: 12px; line-height: 18px; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
.pcm-loading, .pcm-load-more-end { grid-column: 1 / -1; padding: 26px 0; color: #b0b8c9; font-size: 12px; text-align: center; }
@media (max-width: 992px) { .nav-dropdown > .nav-panel.static-mega-menu { display: none !important; } }
.nav-dropdown > .nav-panel.static-news-menu { position: fixed; top: calc(var(--header-height) + 6px); left: 16px; display: none; width: 680px; max-width: calc(100vw - 32px); height: 460px; padding: 0; border: 0; border-radius: 12px; background: transparent; box-shadow: 0 12px 32px #0f172a24, 0 2px 8px #0f172a14; opacity: 1; visibility: visible; transform: none; overflow: visible; z-index: 1100; }
.nav-dropdown.is-open > .nav-panel.static-news-menu, .nav-dropdown:hover > .nav-panel.static-news-menu, .nav-dropdown:focus-within > .nav-panel.static-news-menu { display: block; }
.static-news-menu .mega-menu-inner { display: flex; width: 100%; height: 460px; overflow: hidden; border-radius: 12px; background: #fff; }
.static-news-menu .mega-side { width: 200px; flex: 0 0 auto; overflow-y: auto; padding: 20px 0; background: #fbfcfe; }
.static-news-menu .mega-side-all { display: flex; align-items: center; justify-content: space-between; margin: 0 12px 12px; padding: 8px 20px; border-radius: 6px; color: #1a1a2e !important; font-size: 14px; font-weight: 500; text-decoration: none !important; }
.static-news-menu .mega-side-all:hover, .static-news-menu .mega-cat-item:hover, .static-news-menu .mega-cat-item.active { background: #f5f7fa; color: #1a6bff; }
.static-news-menu .mega-cat-list { margin: 0; padding: 0; list-style: none; }
.static-news-menu .mega-cat-item { padding: 10px 20px; margin: 2px 0; color: #495770; font-size: 14px; cursor: pointer; }
.static-news-menu .mega-main { display: flex; flex: 1; min-width: 0; flex-direction: column; padding: 20px 24px; }
.static-news-menu .mega-section-header { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-bottom: 12px; }
.static-news-menu .mega-section-title { margin: 0; color: #1a1a2e; font-size: 14px; font-weight: 600; }
.static-news-menu .mega-section-sub { color: #b0b8c9; font-size: 12px; white-space: nowrap; }
.static-news-menu .mega-nm-list { display: flex; flex: 1; min-height: 0; flex-direction: column; gap: 4px; overflow-y: auto; }
.static-news-menu .mega-nm-item { display: flex; align-items: center; gap: 12px; padding: 10px; border-radius: 6px; color: inherit !important; text-decoration: none !important; }
.static-news-menu .mega-nm-item:hover { background: #f5f7fa; }
.static-news-menu .mega-nm-info { flex: 1; min-width: 0; }
.static-news-menu .mega-nm-title { overflow: hidden; margin-bottom: 4px; color: #1a1a2e; font-size: 14px; font-weight: 500; line-height: 1.5; text-overflow: ellipsis; white-space: nowrap; }
.static-news-menu .mega-nm-meta { display: flex; align-items: center; gap: 8px; font-size: 12px; color: #8c9db5; }
.static-news-menu .mega-nm-cat-tag { padding: 1px 6px; border-radius: 2px; background: #1a6bff14; color: #1a6bff; font-size: 11px; }
.static-news-menu .mega-nm-empty { padding: 40px 0; color: #8c9db5; font-size: 13px; text-align: center; }
@media (max-width: 992px) { .nav-dropdown > .nav-panel.static-news-menu { display: none !important; } }
.ptn-children{display:none}.ptn-children.is-open{display:block}.ptn-row[data-level="2"]{padding-left:28px}.ptn-row[data-level="3"]{padding-left:44px}.ptn-row[data-level="4"]{padding-left:60px}

/* Product page sidebar matches the public site's light blue active state. */
.ptn-row:hover{background:#f5f7fa;color:#1a6bff}
.ptn-row.active{color:#1a6bff;border-left-color:#1a6bff;background:#1a6bff0f;font-weight:600}
.ptn-row.active .ptn-arrow{color:#1a6bff}
.tc-product-card__badge{position:absolute;top:10px;right:10px;padding:2px 8px;border-radius:3px;background:#1a6bff;color:#fff;font-size:12px}
.tc-pagination button:disabled{cursor:default}
@media (max-width:992px){.tc-cat-sidebar-inner{position:static;height:auto;min-height:0}.tc-cat-list-scroll{height:auto;min-height:0;max-height:none;overflow-y:visible}}
/* Keep the static tree identical to ProductTagTreeNode.vue. */
.ptn-row:hover:not(.disabled){background:#f5f5f5;color:#1a1a1a}
.ptn-row.active,.ptn-row.active:hover{color:#fff;border-left-color:#4fc3f7;background:#4fc3f7;font-weight:600}
.ptn-row.active .ptn-name{color:#fff}
.ptn-row[data-level="2"] .ptn-name{font-size:14px}
.ptn-row[data-level="3"] .ptn-name{font-size:13px;color:#555}
.ptn-row[data-level="4"] .ptn-name{font-size:13px;color:#777}
.ptn-arrow{transition:transform .2s ease,color .15s ease}
.ptn-arrow.is-expanded{transform:rotate(90deg);color:#666}
.ptn-row[data-level="1"] .ptn-arrow{color:#9a9a9a}
.ptn-row:hover:not(.disabled) .ptn-arrow{color:#333}
.ptn-row.active .ptn-arrow,.ptn-row.active .ptn-arrow.is-expanded{color:#fff}