.knowledge-ui{--primary:#e84b2c;--primary-light:#fff2ee;--primary-dark:#183787;--blue:#183787;--bg:#f7f8fc;--text:#3b3b3b;--text-secondary:#727a8e;--text-light:#9299aa;--border:#e9ebf2;--shadow:0 10px 32px rgba(24,55,135,.07);--shadow-hover:0 18px 46px rgba(24,55,135,.13);background:var(--bg);color:var(--text)}
.knowledge-ui .top-nav{height:64px;padding:0 24px}.knowledge-ui .nav-container,.knowledge-ui .nav-menu{height:64px}.knowledge-ui .nav-logo img{height:26px;max-width:168px}.knowledge-ui .nav-item{padding:0 14px;font-size:14px}.knowledge-ui .nav-item.active::after{left:14px;right:14px}.mobile-menu-toggle{display:none;width:40px;height:40px;padding:9px;border:0;background:transparent;cursor:pointer}.mobile-menu-toggle span{display:block;width:22px;height:2px;margin:4px 0;border-radius:2px;background:#183787;transition:.2s ease}
.knowledge-hero{position:relative;overflow:hidden;background:linear-gradient(135deg,#f7f9ff 0%,#f7f6ff 48%,#fff8f5 100%)}.knowledge-hero::before,.knowledge-hero::after{content:"";position:absolute;border-radius:50%;pointer-events:none}.knowledge-hero::before{width:520px;height:520px;right:-130px;top:-210px;background:radial-gradient(circle,rgba(121,103,255,.13),transparent 68%)}.knowledge-hero::after{width:440px;height:440px;left:-180px;bottom:-260px;background:radial-gradient(circle,rgba(232,75,44,.1),transparent 68%)}
.hero-inner{position:relative;z-index:1;max-width:1240px;min-height:570px;margin:0 auto;padding:100px 24px 80px;display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:68px}.hero-copy{text-align:center}.hero-kicker{display:inline-flex;align-items:center;gap:12px;color:#183787;font-size:16px;font-weight:600;white-space:nowrap}.hero-kicker span{width:30px;height:1px;background:linear-gradient(90deg,transparent,#e84b2c)}.hero-kicker span:last-child{transform:rotate(180deg)}.hero-copy h1{margin:22px 0 20px;font-size:48px;line-height:1.2;letter-spacing:-1.5px;color:#17254d}.hero-copy h1 em{color:#e84b2c;font-style:normal}.hero-copy>p{max-width:550px;margin:0 auto;color:#727a8e;font-size:16px;line-height:1.85}.hero-actions{display:flex;justify-content:center;gap:12px;margin-top:30px}.hero-actions .nav-tab{flex:none;padding:13px 23px;border-radius:9px;font-size:15px;box-shadow:none}.hero-primary{background:#e84b2c!important;color:#fff!important}.hero-primary:hover{background:#cf3f23!important;transform:translateY(-1px)}.hero-secondary{background:#fff!important;color:#183787!important;border:1px solid rgba(24,55,135,.16)!important}.hero-secondary:hover{border-color:#183787!important}.hero-sync{display:flex;justify-content:center;align-items:center;gap:7px;margin-top:22px;color:#9299aa;font-size:12px}.hero-sync i{width:7px;height:7px;border-radius:50%;background:#2fad78;box-shadow:0 0 0 5px rgba(47,173,120,.1)}.hero-sync strong{color:#596174;font-weight:600}
.hero-visual{position:relative;min-height:390px;display:flex;align-items:center;justify-content:center}.visual-orbit{position:absolute;border:1px solid rgba(100,105,225,.12);border-radius:50%}.orbit-one{width:390px;height:390px}.orbit-two{width:300px;height:300px;border-style:dashed}.visual-panel{position:relative;z-index:2;width:min(100%,470px);padding:22px;border:1px solid rgba(255,255,255,.9);border-radius:22px;background:rgba(255,255,255,.88);box-shadow:0 28px 70px rgba(47,54,113,.18);backdrop-filter:blur(16px);transform:rotate(-1deg)}.visual-head{display:flex;justify-content:space-between;align-items:center;color:#17254d;font-weight:700}.visual-head b{display:flex;align-items:center;gap:6px;padding:5px 9px;border-radius:99px;background:#edf9f3;color:#27845e;font-size:11px;font-weight:600}.visual-head b i{width:6px;height:6px;border-radius:50%;background:#2fad78}.visual-search{margin:18px 0 14px;padding:12px 14px;border:1px solid #e8eaf2;border-radius:10px;color:#a0a6b5;font-size:12px;text-align:left}.visual-search span{float:right;padding:1px 6px;border:1px solid #e3e5ec;border-radius:4px}.visual-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.visual-stat{padding:16px;border-radius:13px;background:#f2f5ff;text-align:left}.visual-stat.accent{background:#fff2ee}.visual-stat small,.visual-stat span{display:block;color:#858da0;font-size:11px}.visual-stat strong{display:block;margin:2px 0;color:#183787;font-size:27px}.visual-stat.accent strong{color:#e84b2c}.visual-rule{display:flex;align-items:center;gap:11px;margin-top:12px;padding:11px 12px;border:1px solid #eceef4;border-radius:12px;background:#fff;text-align:left}.rule-logo{display:grid;place-items:center;width:36px;height:36px;border-radius:9px;background:#fff0ec;color:#e84b2c;font-style:normal;font-weight:700}.rule-logo.blue{background:#edf1ff;color:#183787}.visual-rule div{flex:1}.visual-rule strong,.visual-rule span{display:block}.visual-rule strong{color:#30364a;font-size:13px}.visual-rule span{color:#9299aa;font-size:10px}.visual-rule>b{color:#e84b2c;font-size:11px}
.knowledge-ui .main-container{max-width:1240px;padding:64px 24px 80px}.knowledge-ui .sub-nav{display:flex;justify-content:center;margin:-26px auto 58px}.knowledge-ui .sub-nav .nav-segmented{padding:6px;border:1px solid #e7e9f1;border-radius:14px;background:#fff;box-shadow:0 10px 26px rgba(24,55,135,.08)}.knowledge-ui .sub-nav .nav-tab{min-width:190px;padding:12px 20px;color:#727a8e}.knowledge-ui .sub-nav .nav-tab.active{background:#183787;color:#fff}.knowledge-ui .page-header{max-width:760px;margin:0 auto 34px;text-align:center}.knowledge-ui .page-title{color:#232c49;font-size:32px;line-height:1.35}.knowledge-ui .page-subtitle{color:#727a8e;font-size:16px;line-height:1.75}.knowledge-ui .ota-toolbar,.knowledge-ui .article-toolbar{max-width:900px;margin:0 auto 26px}.knowledge-ui .search-box,.knowledge-ui .category-filter{min-height:48px;padding:12px 16px;border-color:#e4e7ef;border-radius:10px;box-shadow:0 5px 18px rgba(24,55,135,.04)}.knowledge-ui .search-box:focus,.knowledge-ui .category-filter:focus{border-color:#183787;box-shadow:0 0 0 3px rgba(24,55,135,.08)}.knowledge-ui .stats-row{margin:0 0 56px;gap:14px}.knowledge-ui .stat-card{position:relative;overflow:hidden;padding:22px 18px;border:1px solid rgba(24,55,135,.07);box-shadow:0 8px 24px rgba(24,55,135,.05)}.knowledge-ui .stat-card::before{content:"";position:absolute;left:0;top:0;width:100%;height:3px;background:linear-gradient(90deg,#183787,#7a74e8);opacity:.7}.knowledge-ui .stat-number{color:#183787;font-size:30px}.knowledge-ui .region-label{color:#232c49;border-left-color:#e84b2c}.knowledge-ui .ota-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.knowledge-ui .ota-card{border-color:#e9ebf2;box-shadow:var(--shadow)}.knowledge-ui .ota-card:hover{border-color:rgba(232,75,44,.28);box-shadow:var(--shadow-hover);transform:translateY(-4px)}.knowledge-ui .ota-card-header{border-bottom-color:#eef0f5}.knowledge-ui .rule-tag{background:#f3f5fb;color:#626b7e}.knowledge-ui .official-link,.knowledge-ui .article-content a{color:#e84b2c}
.knowledge-ui .article-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;align-items:start}.knowledge-ui .article-item{height:100%;border-color:#e8eaf1;border-radius:15px;box-shadow:var(--shadow)}.knowledge-ui .article-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}.knowledge-ui .article-item.expanded{grid-column:1/-1;height:auto;transform:none}.knowledge-ui .article-item-header{position:relative;min-height:250px;padding:112px 20px 20px;align-items:flex-start}.knowledge-ui .article-cover{position:absolute;inset:0 0 auto;height:94px;overflow:hidden;padding:17px 18px;background:linear-gradient(135deg,#183787,#596dc3);color:#fff}.knowledge-ui .article-cover::after{content:"";position:absolute;width:120px;height:120px;right:-30px;top:-45px;border:24px solid rgba(255,255,255,.1);border-radius:50%}.knowledge-ui .article-cover.category-why{background:linear-gradient(135deg,#5b4fc4,#8a7be8)}.knowledge-ui .article-cover.category-how{background:linear-gradient(135deg,#df4a2d,#f18258)}.knowledge-ui .article-cover small,.knowledge-ui .article-cover strong{position:relative;z-index:1;display:block}.knowledge-ui .article-cover small{opacity:.78;font-size:11px;letter-spacing:1px}.knowledge-ui .article-cover strong{margin-top:5px;font-size:16px}.knowledge-ui .article-number{width:32px;height:32px;background:#fff2ee;color:#e84b2c}.knowledge-ui .article-title{color:#2c3347;line-height:1.55}.knowledge-ui .article-category{background:#183787}.knowledge-ui .article-summary{display:-webkit-box;overflow:hidden;-webkit-box-orient:vertical;-webkit-line-clamp:2;line-height:1.65}.knowledge-ui .article-item-body{background:#fff}.knowledge-ui .article-item.expanded .article-item-header{min-height:auto;padding:28px 24px}.knowledge-ui .article-item.expanded .article-cover{display:none}.knowledge-ui .huake-footer{margin-top:0;padding-top:64px}.knowledge-ui .footer-phone{margin-top:14px;color:#fff;font-size:13px;font-weight:600}
@media(max-width:1120px){.knowledge-ui .nav-item{padding:0 8px;font-size:13px}.knowledge-ui .nav-item.active::after{left:8px;right:8px}.knowledge-ui .btn-login,.knowledge-ui .btn-trial{padding:8px 12px}.hero-inner{gap:34px}.knowledge-ui .ota-grid,.knowledge-ui .article-list{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:900px){.knowledge-ui .top-nav{height:64px}.knowledge-ui .nav-container{height:64px;flex-direction:row;padding:0}.mobile-menu-toggle{display:block;margin-left:auto}.knowledge-ui .nav-menu,.knowledge-ui .nav-actions{display:none;position:absolute;left:0;right:0;top:64px;height:auto;padding:14px 20px;background:rgba(255,255,255,.98);border-bottom:1px solid #e8eaf1}.knowledge-ui .nav-menu.open{display:block}.knowledge-ui .nav-actions.open{top:337px;display:flex;justify-content:center;padding:12px 20px 18px}.knowledge-ui .nav-item{justify-content:center;height:44px}.knowledge-ui .nav-item.active::after{display:none}.hero-inner{min-height:0;grid-template-columns:1fr;padding-top:80px}.hero-copy h1{font-size:40px}.hero-visual{min-height:350px}.knowledge-ui .article-item.expanded{grid-column:auto}}
@media(max-width:600px){.knowledge-ui .top-nav{padding:0 16px}.hero-inner{padding:72px 20px 80px;gap:40px}.hero-kicker{font-size:14px;white-space:normal}.hero-kicker span{width:18px}.hero-copy h1{font-size:34px}.hero-actions{flex-direction:column}.hero-sync{flex-wrap:wrap}.hero-visual{min-height:315px}.visual-panel{padding:16px}.knowledge-ui .main-container{padding:58px 16px 80px}.knowledge-ui .sub-nav{margin:-22px 0 48px}.knowledge-ui .sub-nav .nav-segmented{width:100%}.knowledge-ui .sub-nav .nav-tab{min-width:0;padding:11px 8px;font-size:13px}.knowledge-ui .page-title{font-size:28px}.knowledge-ui .ota-grid,.knowledge-ui .article-list{grid-template-columns:1fr}.knowledge-ui .stats-row{display:grid;grid-template-columns:1fr 1fr}}
@media(prefers-reduced-motion:reduce){.knowledge-ui *{scroll-behavior:auto!important;transition:none!important}}
.knowledge-ui .article-cover{display:block}

/* 官网同款全局导航与页脚（2026-09-16 从官网实测同步） */
.knowledge-ui{padding-top:72px;font-family:Inter,"Source Han Sans SC","Noto Sans CJK SC",思源黑体,"PingFang SC","Microsoft YaHei",sans-serif}
.vocust-header{position:fixed;z-index:1000;top:0;left:0;width:100%;height:72px;padding:0 40px;display:flex;align-items:center;gap:64px;background:rgba(255,255,255,.7);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);box-sizing:border-box;color:#3b3b3b}
.vocust-brand{display:block;width:128px;flex:0 0 128px}.vocust-brand img{display:block;width:128px;height:auto}
.vocust-menu{display:none;margin-left:auto;padding:8px;border:0;background:transparent}.vocust-menu i{display:block;width:24px;height:2px;margin:6px;background:#292b30}
.vocust-nav{height:72px;display:flex;align-items:center;justify-content:center;gap:38px;flex:1;font-size:14px;white-space:nowrap}
.vocust-nav a{position:relative;color:#292b30;text-decoration:none;font-weight:500}.vocust-nav>a.active,.vocust-nav summary>a.active{color:#e84b2c}
.vocust-nav details{position:relative}.vocust-nav summary{list-style:none;cursor:pointer}.vocust-nav summary::-webkit-details-marker{display:none}
.vocust-nav details summary>a::after{display:none}
.vocust-nav details ul{position:absolute;top:28px;left:50%;min-width:164px;margin:0;padding:10px 0;list-style:none;background:#fff;border-radius:7px;box-shadow:0 14px 32px rgba(20,27,45,.14);transform:translateX(-50%)}
.vocust-nav details li a{display:block;padding:9px 18px;font-size:13px}.vocust-nav details li a:hover{color:#e84b2c;background:#f7f8fb}
.vocust-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}.vocust-actions a{height:40px;padding:0 17px;display:flex;align-items:center;justify-content:center;border-radius:7px;color:#fff;text-decoration:none;font-size:14px;font-weight:500;box-sizing:border-box}.vocust-actions .login{background:#183787}.vocust-actions .trial{background:#e84b2c}
.vocust-footer{width:100%;margin:0;padding:70px 40px 24px;box-sizing:border-box;background:#0b0e15;color:#fff}
.vocust-footer-top{display:grid;grid-template-columns:1.7fr repeat(5,1fr);gap:30px}
.vocust-footer-top>div:not(.vocust-footer-brand){display:flex;flex-direction:column;gap:10px}.vocust-footer a{color:#858b98;text-decoration:none;font-size:12px;line-height:1.7}.vocust-footer a:hover{color:#fff}.vocust-footer b{margin:0 0 7px;color:#fff;font-size:13px}.vocust-footer-brand img{display:block;width:180px;height:auto}.vocust-footer-brand p{margin:12px 0;color:#858b98;font-size:12px;line-height:1.7}.vocust-socials{display:flex;gap:9px;margin:18px 0 0}.vocust-socials span{display:grid;place-items:center;width:44px;height:44px;border:1px solid #575757;border-radius:50%;color:#bbb;font-size:9px;box-sizing:border-box}.vocust-footer-bottom{height:37px;margin:55px 0 0;padding:20px 0 0;border-top:1px solid #252935;display:flex;align-items:center;justify-content:space-between;gap:20px;color:#646b78;font-size:11px;box-sizing:border-box}.vocust-footer-bottom a{color:#646b78;font-size:11px}
@media(max-width:1120px){.vocust-header{gap:24px;padding:0 24px}.vocust-nav{gap:22px}}
@media(max-width:900px){.knowledge-ui{padding-top:64px}.vocust-header{height:64px;padding:0 20px}.vocust-brand,.vocust-brand img{width:128px}.vocust-menu{display:block}.vocust-nav,.vocust-actions{display:none}.vocust-menu-open .vocust-nav{position:absolute;display:flex;top:64px;left:0;right:0;height:auto;padding:14px 20px;flex-direction:column;align-items:stretch;gap:0;background:#fff;box-shadow:0 18px 30px rgba(24,55,135,.1)}.vocust-menu-open .vocust-nav>a,.vocust-menu-open .vocust-nav summary>a{display:block;padding:11px;text-align:center}.vocust-nav details ul{position:static;transform:none;box-shadow:none;text-align:center}.vocust-menu-open .vocust-actions{position:absolute;display:flex;top:393px;left:0;right:0;justify-content:center;padding:14px;background:#fff}.vocust-footer{padding:50px 24px 24px}.vocust-footer-top{grid-template-columns:repeat(3,1fr)}.vocust-footer-brand{grid-column:1/-1}}
@media(max-width:560px){.vocust-footer-top{grid-template-columns:repeat(2,1fr)}.vocust-footer-bottom{height:auto;flex-wrap:wrap}}

/* 保留客户浏览版原有首屏结构，仅做官网视觉升级。 */
.knowledge-ui .main-container{padding-top:80px}
.knowledge-ui .sub-nav{margin:0 auto 56px}

/* 官网顶部导航：64px 高、1240px 内容宽、玻璃白底。 */
.knowledge-ui .top-nav{position:sticky;top:0;height:64px;padding:0 24px;background:rgba(255,255,255,.9);border-bottom:1px solid rgba(24,55,135,.08);box-shadow:0 2px 10px rgba(24,55,135,.04);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px)}
.knowledge-ui .nav-container{width:100%;max-width:1240px;height:64px;margin:0 auto;gap:18px}
.knowledge-ui .nav-logo{width:158px;min-width:158px}
.knowledge-ui .nav-logo img{display:block;width:auto;max-width:158px;height:28px;object-fit:contain}
.knowledge-ui .nav-menu{height:64px;gap:0;white-space:nowrap}
.knowledge-ui .nav-item{height:64px;padding:0 12px;font-size:14px}
.knowledge-ui .nav-actions{gap:8px}
.knowledge-ui .btn-login,.knowledge-ui .btn-trial{display:inline-flex;align-items:center;justify-content:center;height:38px;padding:0 15px;border-radius:8px;color:#fff;white-space:nowrap}
.knowledge-ui .btn-login:hover,.knowledge-ui .btn-trial:hover{color:#fff}

/* 后台内容图文卡：统一封面比例、圆角和信息密度。 */
.knowledge-ui .article-item-header{min-height:332px;padding:200px 20px 20px}
.knowledge-ui .article-cover{height:180px}
.knowledge-ui .article-cover small{font-size:12px}
.knowledge-ui .article-cover strong{margin-top:10px;font-size:18px}

/* 六栏页脚内的二维码采用紧凑 2×2 排布，避免挤压导航列。 */
.knowledge-ui .footer-qr-row{display:grid;grid-template-columns:repeat(2,58px);gap:12px;margin-top:18px}
.knowledge-ui .footer-qr-row .qr-img{width:58px;height:58px;padding:4px}
.knowledge-ui .footer-qr-row .qr-label{font-size:10px;line-height:1.35;text-align:center}

/* 六栏导航在空间不足前提前收起，避免菜单和按钮互相挤压。 */
@media(max-width:1180px){
  .knowledge-ui .nav-container{height:64px;flex-direction:row;padding:0}
  .mobile-menu-toggle{display:block;margin-left:auto}
  .knowledge-ui .nav-menu,.knowledge-ui .nav-actions{display:none;position:absolute;left:0;right:0;height:auto;background:rgba(255,255,255,.98);border-bottom:1px solid #e8eaf1;box-shadow:0 18px 30px rgba(24,55,135,.08)}
  .knowledge-ui .nav-menu{top:64px;padding:12px 20px}
  .knowledge-ui .nav-menu.open{display:block}
  .knowledge-ui .nav-actions.open{top:340px;display:flex;justify-content:center;padding:14px 20px 18px}
  .knowledge-ui .nav-item{justify-content:center;height:44px;padding:0 12px}
  .knowledge-ui .nav-item.active::after{display:none}
}
@media(max-width:600px){
  .knowledge-ui .main-container{padding-top:56px}
  .knowledge-ui .sub-nav{margin:0 0 42px}
  .knowledge-ui .article-item-header{min-height:310px;padding-top:190px}
  .knowledge-ui .article-cover{height:170px}
}

/* 真实酒旅场景图替代纯色占位封面，文字通过底部渐变保持清晰。 */
.knowledge-ui .article-cover{padding:0;background:#183787}
.knowledge-ui .article-cover::before{content:"";position:absolute;z-index:1;inset:0;background:linear-gradient(180deg,rgba(9,17,38,.08) 0%,rgba(9,17,38,.18) 38%,rgba(9,17,38,.88) 100%)}
.knowledge-ui .article-cover::after{display:none}
.knowledge-ui .article-cover-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center;transition:transform .45s ease,filter .3s ease}
.knowledge-ui .article-cover-copy{position:absolute;z-index:2;left:18px;right:18px;bottom:16px;color:#fff;text-shadow:0 2px 12px rgba(0,0,0,.36)}
.knowledge-ui .article-cover-copy small,.knowledge-ui .article-cover-copy strong{display:block}
.knowledge-ui .article-cover-copy small{font-size:11px;letter-spacing:1.15px;opacity:.84}
.knowledge-ui .article-cover-copy strong{margin-top:5px;font-size:17px;line-height:1.35}
.knowledge-ui .article-item:hover .article-cover-img{transform:scale(1.045);filter:saturate(1.06)}
@media(prefers-reduced-motion:reduce){.knowledge-ui .article-cover-img{transition:none}.knowledge-ui .article-item:hover .article-cover-img{transform:none}}

/* 酒店经营任务分类色：保持华客蓝为主色，只用轻微色相区分检索场景 */
.knowledge-ui .article-cover.category-rules{background:linear-gradient(135deg,#183787,#596dc3)}
.knowledge-ui .article-cover.category-recovery{background:linear-gradient(135deg,#8f2f36,#d75c53)}
.knowledge-ui .article-cover.category-growth{background:linear-gradient(135deg,#b65a20,#ef8b45)}
.knowledge-ui .article-cover.category-operations{background:linear-gradient(135deg,#44388f,#7867c9)}
.knowledge-ui .article-cover.category-experience{background:linear-gradient(135deg,#176c70,#36a0a0)}

.knowledge-ui .audit-badge{display:inline-flex;align-items:center;width:max-content;margin-top:5px;padding:3px 8px;border-radius:999px;font-size:11px;font-weight:700;line-height:1.4}
.knowledge-ui .audit-badge.pending{background:#fff1ed;color:#c43f24;border:1px solid #ffd1c6}
.knowledge-ui .audit-badge.verified{background:#edf8f3;color:#187a55;border:1px solid #c8eadc}
.knowledge-ui .audit-note{margin:10px 0 2px;padding:9px 11px;border-left:3px solid #e84b2c;border-radius:4px;background:#fff7f4;color:#8b4436;font-size:12px;line-height:1.6}
.knowledge-ui .audit-note-detail{margin:18px 0;font-size:14px}