:root{
--bg:#f5f8fc;--bg2:#eef1f6;--surface:#ffffff;--surface2:#f5f7fa;
--text:#1a2332;--text2:#3d4a5c;--muted:#6b7a8f;--line:#e5eaf1;
--brand:#3370ff;--brand2:#0b1728;--brand-light:rgba(51,112,255,.1);--brand-dark:#0b1728;
--success:#00b578;--warning:#ff8f1f;--danger:#ff4d4f;
--radius:10px;--radius-sm:6px;--radius-lg:12px;
--shadow:none;--shadow-md:0 4px 14px rgba(0,0,0,.04);--shadow-lg:0 8px 24px rgba(0,0,0,.06);
--ease:cubic-bezier(.4,0,.2,1);
--font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei","Helvetica Neue",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{background:var(--bg);color:var(--text);font-family:var(--font);line-height:1.65;font-size:14px;overflow-x:hidden;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}a[href]{-webkit-tap-highlight-color:transparent}
button,input,select,textarea{font:inherit;color:inherit}button{cursor:pointer;border:0;background:none}button:disabled{cursor:not-allowed}
input,select,textarea{border:0;outline:0;border-radius:0;appearance:none;-webkit-appearance:none}textarea{resize:vertical}select{cursor:pointer}
input[type="checkbox"],input[type="radio"]{appearance:auto;-webkit-appearance:auto;accent-color:var(--brand)}
img,svg,video,canvas{max-width:100%;display:block}img{height:auto}
table{border-collapse:collapse;border-spacing:0}th{text-align:inherit;font-weight:inherit}ul,ol{list-style:none}
summary{cursor:pointer;list-style:none}summary::-webkit-details-marker{display:none}
::selection{background:var(--brand);color:#fff}
.container{max-width:1200px;margin:auto;padding:0 24px}

/* ===== Header ===== */
.nav{position:sticky;top:0;z-index:100;height:60px;display:flex;align-items:center;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .2s}
.nav.scrolled{box-shadow:0 1px 12px rgba(0,0,0,.06)}
.nav-inner{display:flex;align-items:center;gap:20px;width:100%;max-width:1200px;margin:auto;padding:0 24px}
.brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:700;color:var(--text);margin-right:auto;flex-shrink:0}
.brand-ico{display:grid;place-items:center;width:32px;height:32px;overflow:hidden}
.brand-ico img{width:100%;height:100%;object-fit:contain;display:block}
.nav-links{display:flex;gap:2px;list-style:none}
.nav-links a{padding:6px 14px;border-radius:var(--radius-sm);font-size:14px;color:var(--text2);font-weight:500;transition:all .15s;white-space:nowrap;display:block}
.nav-links a:hover,.nav-links a.active{color:var(--brand);background:var(--brand-light);font-weight:700}
.nav-cta{background:var(--brand);color:#fff;padding:8px 20px;border-radius:var(--radius-sm);font-size:13px;font-weight:600;transition:all .15s;white-space:nowrap;box-shadow:0 2px 8px rgba(51,112,255,.25)}
.nav-cta:hover{background:var(--brand2);box-shadow:0 4px 12px rgba(51,112,255,.35)}
.navurger{display:none;flex-direction:column;gap:5px;padding:8px;background:none}
.navurger span{display:block;width:20px;height:2px;background:var(--text);border-radius:2px;transition:all .3s}
.navurger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.navurger.open span:nth-child(2){opacity:0}
.navurger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.skip-link{position:fixed;top:8px;left:8px;z-index:200;transform:translateY(-150%);padding:8px 12px;background:var(--brand);color:#fff;border-radius:var(--radius-sm);font-weight:700}.skip-link:focus{transform:translateY(0)}

.theme-toggle{display:grid;place-items:center;width:36px;height:36px;border:1px solid var(--line);background:var(--surface);color:var(--text);flex-shrink:0}.theme-toggle span{width:14px;height:14px;border:2px solid currentColor;border-radius:50%;box-shadow:7px -5px 0 -4px var(--surface)}
html[data-theme="dark"]{--bg:#11161d;--bg2:#151b23;--surface:#181f28;--surface2:#202833;--text:#edf2f7;--text2:#c4ceda;--muted:#91a0b2;--line:#303a47;--brand-light:rgba(51,112,255,.18);color-scheme:dark}
html[data-theme="dark"] body,html[data-theme="dark"] .section,html[data-theme="dark"] .nav,html[data-theme="dark"] .footer,html[data-theme="dark"] .panel,html[data-theme="dark"] .grid a,html[data-theme="dark"] .price-card,html[data-theme="dark"] .case-card,html[data-theme="dark"] .demo-card,html[data-theme="dark"] .docs-sidebar,html[data-theme="dark"] .docs-article,html[data-theme="dark"] .blog-card,html[data-theme="dark"] .product-preview{background:var(--surface);color:var(--text)}
html[data-theme="dark"] input,html[data-theme="dark"] textarea,html[data-theme="dark"] select,html[data-theme="dark"] .btn-ghost,html[data-theme="dark"] .copy-contact{background:var(--surface2);color:var(--text);border-color:var(--line)}
html[data-theme="dark"] .hero,html[data-theme="dark"] .section.alt,html[data-theme="dark"] .docs-hero,html[data-theme="dark"] .docs-workspace{background:var(--bg2)}
html[data-theme="dark"] .nav-links.mobile-open{background:var(--surface)}
@media(max-width:780px){.theme-toggle{margin-left:auto}.nav-cta{display:none}}

/* ===== Hero ===== */
.hero{position:relative;padding:80px 0 60px;background:var(--surface2);overflow:hidden}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;max-width:1200px;margin:auto;padding:0 24px;width:100%}
.eyebrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-size:12px;font-weight:600;margin-bottom:16px;padding:4px 14px;border-radius:100px;background:rgba(51,112,255,.08)}
.hero-left{grid-column:2}.hero-right{grid-column:1;grid-row:1}.hero-left h1{font-size:clamp(30px,4vw,48px);line-height:1.2;letter-spacing:-.02em;font-weight:800;color:var(--text);margin-bottom:16px}
.hero-left h1 strong{color:var(--brand)}
.hero-desc{max-width:520px;color:var(--muted);font-size:16px;line-height:1.8;margin-bottom:28px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.hero-secondary-cta{margin-top:14px}
.hero-secondary-cta .text-link{display:inline-flex;align-items:center;gap:4px;color:var(--brand);font-size:13px;font-weight:600}
.hero-right{display:grid;place-items:center;min-width:0}
.hero-visual-image{display:block;width:min(100%,460px);aspect-ratio:1;object-fit:contain;filter:drop-shadow(0 18px 26px rgba(21,63,168,.2))}
.hero-fallback{display:grid;place-items:center;width:min(100%,340px);aspect-ratio:1;border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--brand-light);color:var(--brand);font-size:42px;font-weight:800}

/* ===== 产品界面首屏展示 ===== */
.product-preview{position:relative;width:min(100%,560px);padding:18px 18px 52px;border:1px solid var(--line);border-radius:14px;background:#fff}
.product-preview figure{overflow:hidden;border:1px solid #d9e0e9;border-radius:9px;background:#fff}
.product-preview img{width:100%;height:auto;aspect-ratio:1280/853;object-fit:cover;object-position:top}
.product-preview figcaption{padding:7px 10px;border-top:1px solid var(--line);color:var(--muted);font-size:11px;font-weight:600;background:#fff}
.product-preview-main{width:82%}
.product-preview-side{position:absolute;right:0;bottom:36px;width:55%;box-shadow:0 12px 28px rgba(15,24,38,.14)}
.product-preview-note{position:absolute;left:18px;bottom:14px;display:flex;align-items:center;gap:10px;color:var(--muted);font-size:11px}
.product-preview-note b{color:var(--brand);font-size:12px}

/* ===== 公共控件稳定层：防止无组件样式时回退为浏览器默认外观 ===== */
input[type="text"],input[type="email"],input[type="tel"],input[type="url"],input[type="search"],input[type="number"],textarea,select{min-height:42px;width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--surface);color:var(--text);line-height:1.45}
select{padding-right:34px;background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);background-position:calc(100% - 17px) 18px,calc(100% - 12px) 18px;background-size:5px 5px,5px 5px;background-repeat:no-repeat}
textarea{min-height:108px;line-height:1.65}input::placeholder,textarea::placeholder{color:#a6b1c0;opacity:1}
input:focus,select:focus,textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-light)}
input[type="number"]{-moz-appearance:textfield}input[type="number"]::-webkit-inner-spin-button,input[type="number"]::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}
fieldset{min-width:0;border:0}details{border:0}hr{border:0;border-top:1px solid var(--line)}

/* ===== 企业官网通用按钮：完整基础态、焦点态和禁用态 ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:10px 20px;border:1px solid transparent;border-radius:var(--radius-sm);background:var(--brand);color:#fff;font:inherit;font-weight:600;line-height:1.4;text-align:center;text-decoration:none}
.btn:focus-visible,a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--brand);outline-offset:3px}
.btn:disabled{opacity:.55;cursor:not-allowed}
.btn-sm{min-height:36px;padding:7px 14px;font-size:13px}
.btn-outline{background:#fff;color:var(--brand);border-color:var(--brand)}


.btn:hover{background:var(--brand2);box-shadow:0 4px 14px rgba(51,112,255,.35);transform:translateY(-1px)}
.btn-ghost{background:#fff;color:var(--brand);border:1px solid var(--brand);box-shadow:none}
.btn-ghost:hover{background:var(--brand-light);border-color:var(--brand2)}
.text-link{display:inline-flex;align-items:center;gap:4px;color:var(--brand);font-size:13px;font-weight:600}

/* ===== Stats ===== */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:0;padding:32px 24px;background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow);margin:-40px auto 0;position:relative;z-index:10;max-width:1100px;margin-left:auto;margin-right:auto}
.stat{padding:0 20px;text-align:center}
.stat:not(:last-child){border-right:1px solid var(--line)}
.stat b{display:block;font-size:28px;font-weight:800;color:var(--brand)}
.stat span{display:block;margin-top:4px;color:var(--muted);font-size:13px}

/* ===== Sections ===== */
.section{padding:64px 32px;background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow);margin-bottom:24px;max-width:1200px;margin-left:auto;margin-right:auto}
.section.alt{background:var(--surface2)}
.section-head{max-width:580px;margin-bottom:40px}
.section-head small{display:inline-flex;color:var(--brand);font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;margin-bottom:10px}
.section-head h1{font-size:clamp(24px,3vw,36px);line-height:1.25;letter-spacing:-.01em;font-weight:700;color:var(--text);margin-bottom:10px}
.section-head h2{font-size:clamp(24px,3vw,32px);line-height:1.25;letter-spacing:-.01em;font-weight:700;color:var(--text);margin-bottom:10px}
.section-head p{color:var(--muted);font-size:14px;line-height:1.8}

/* ===== Grid ===== */
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.grid a{display:block;padding:24px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;transition:all .15s}
.grid a:hover{border-color:var(--brand);box-shadow:0 4px 16px rgba(51,112,255,.08);transform:translateY(-2px)}
.ic-box{display:grid;place-items:center;width:44px;height:44px;border-radius:10px;color:#fff;font-size:20px;font-weight:700;margin-bottom:14px}
.ic-box.blue{background:var(--surface2)}
.ic-box.cyan{background:var(--surface2)}
.ic-box.indigo{background:var(--surface2)}
.ic-box.orange{background:var(--surface2)}
.ic-box.sky{background:var(--surface2)}
.ic-box.violet{background:var(--surface2)}
.grid b{display:block;font-size:15px;font-weight:700;color:var(--text);margin-bottom:4px}
.grid small{display:block;color:var(--muted);font-size:13px;line-height:1.6}

/* ===== Service/Step Grids ===== */
.service-grid,.grid-service,.step-grid,.grid-step{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.service-grid>div,.grid-service>div{padding:28px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;transition:all .15s}
.service-grid>div:hover,.grid-service>div:hover{border-color:var(--brand);box-shadow:0 4px 16px rgba(51,112,255,.08);transform:translateY(-2px)}
.service-grid .num,.grid-service .num{display:inline-flex;color:var(--brand);font-size:32px;font-weight:800;margin-bottom:12px;opacity:.15}
.service-grid h3,.grid-service h3{font-size:16px;font-weight:700;color:var(--text);margin-bottom:6px}
.service-grid p,.grid-service p{color:var(--muted);font-size:13px;line-height:1.7}
.step-grid>div,.grid-step>div{padding:24px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;transition:all .15s}
.step-grid>div:hover,.grid-step>div:hover{border-color:var(--brand);box-shadow:0 4px 16px rgba(51,112,255,.08)}
.step-grid b,.grid-step b{color:var(--brand);font-size:28px;font-weight:800;opacity:.15}
.step-grid h3,.grid-step h3{margin:10px 0 6px;font-size:16px;font-weight:700;color:var(--text)}
.step-grid p,.grid-step p{color:var(--muted);font-size:13px;line-height:1.7}
.scenic-section{position:relative;overflow:hidden;background:#fff url('feature-highlight.webp') right center/auto 100% no-repeat}
.scenic-section:after{content:'';position:absolute;inset:0;background:var(--surface2);pointer-events:none}
.scenic-section>*{position:relative;z-index:1}
.scenic-section .section-head,.scenic-section .step-grid{max-width:720px}
.scenic-section .step-grid>div{background:rgba(255,255,255,.9);border:1px solid rgba(229,234,241,.9);border-radius:10px;padding:18px}

/* ===== FAQ ===== */
.faq-list,.faq-grid{max-width:820px}
.faq-list details,.faq-grid details{padding:16px 0;border-bottom:1px solid var(--line);transition:all .15s}
.faq-list details:last-child,.faq-grid details:last-child{border-bottom:none}
.faq-list details[open],.faq-grid details[open]{padding:16px}
.faq-list summary,.faq-grid summary{display:flex;justify-content:space-between;align-items:center;cursor:pointer;list-style:none;font-size:15px;font-weight:600;color:var(--text);user-select:none;padding:4px 0}
.faq-list summary::-webkit-details-marker,.faq-grid summary::-webkit-details-marker{display:none}
.faq-list summary span,.faq-grid summary span{color:var(--brand);font-size:20px;font-weight:300;transition:transform .2s}
.faq-list details[open] summary span,.faq-grid details[open] summary span{transform:rotate(45deg)}
.faq-list p,.faq-grid p{margin-top:10px;color:var(--muted);font-size:14px;line-height:1.8}

/* ===== CTA ===== */
.cta,.cta-section{padding:48px 32px;margin:24px auto;text-align:center;background:var(--surface2);border-radius:var(--radius-lg);max-width:1200px;position:relative;overflow:hidden}
.cta::before,.cta-section::before{content:"";position:absolute;top:-40%;right:-20%;width:400px;height:400px;background:radial-gradient(circle,rgba(255,255,255,.08) 0%,transparent 70%);border-radius:50%}
.cta h2,.cta-section h2{color:#fff;font-size:26px;line-height:1.3;margin-bottom:10px;position:relative}
.cta p,.cta-section p{color:rgba(255,255,255,.8);font-size:14px;max-width:520px;margin:0 auto 24px;line-height:1.7;position:relative}
.cta .btn-ghost,.cta-section .btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.4)}

/* ===== Floating CTA ===== */
.float-cta{position:fixed;right:20px;bottom:20px;z-index:99;display:inline-flex;align-items:center;gap:6px;min-height:44px;padding:0 20px;border-radius:100px;background:var(--brand);color:#fff;font-size:13px;font-weight:600;box-shadow:0 4px 16px rgba(51,112,255,.3);transition:all .15s;text-decoration:none}
.float-cta:hover{background:var(--brand2);box-shadow:0 6px 20px rgba(51,112,255,.4)}

/* ===== Footer ===== */
.footer{background:#fff;color:var(--muted);padding:48px 0 24px;margin-top:48px;border-top:1px solid var(--line)}
.footer-inner{max-width:1200px;margin:auto;padding:0 24px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:24px}
.footer-brand strong{font-size:15px;font-weight:700;color:var(--text)}
.footer-brand p{margin:2px 0 0;color:var(--muted);font-size:12px}
.footer-links{display:flex;gap:24px;margin-bottom:24px;flex-wrap:wrap}
.footer-links a{color:var(--muted);font-size:13px;font-weight:500;transition:color .15s}
.footer-links a:hover{color:var(--brand)}
.footer-contact{display:flex;gap:18px;flex-wrap:wrap;margin:-8px 0 20px;color:var(--text2);font-size:12px}.footer-contact span{overflow-wrap:anywhere}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;padding-top:20px;border-top:1px solid var(--line);color:var(--muted);font-size:12px}
.success-title{color:var(--text);font-size:24px;margin-bottom:12px}

/* ===== Breadcrumb ===== */
.breadcrumb{padding:12px 0;max-width:1200px;margin:auto}
.breadcrumb ol{display:flex;gap:6px;list-style:none;padding:0;margin:0;font-size:13px;color:var(--muted)}
.breadcrumb li:not(:last-child)::after{content:'/';margin-left:6px;color:var(--line)}
.breadcrumb li:last-child{color:var(--text)}
.breadcrumb a{color:var(--muted);text-decoration:none;transition:color .15s}
.breadcrumb a:hover{color:var(--brand)}

/* ===== Articles ===== */
.latest-articles{background:var(--surface2)}
.article-list{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:20px}
.latest-articles .article-card,.article-card{display:flex;flex-direction:column;min-height:200px;padding:22px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);transition:all .15s;text-decoration:none}
.latest-articles .article-card:hover,.article-card:hover{border-color:var(--brand);box-shadow:0 4px 16px rgba(51,112,255,.08);transform:translateY(-2px)}
.article-card-meta{color:var(--brand);font-size:12px;margin-bottom:12px}
.latest-articles .article-card h3,.article-card h3{color:var(--text);font-size:15px;font-weight:700;line-height:1.5;margin-bottom:8px}
.latest-articles .article-card p,.article-card p{color:var(--muted);font-size:13px;line-height:1.7;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.article-card-link{margin-top:auto;padding-top:16px;color:var(--brand);font-size:12px;font-weight:600}
.article-empty{padding:24px;border:1px dashed var(--line);border-radius:var(--radius);color:var(--muted);grid-column:1/-1;text-align:center}
.article-empty h3{color:var(--text);margin-bottom:4px}

/* ===== Article Content ===== */
.article-content{color:var(--text2);font-size:15px;line-height:1.85}
.article-content h2{font-size:22px;font-weight:700;color:var(--text);margin:28px 0 12px}
.article-content h3{font-size:18px;font-weight:700;color:var(--text);margin:20px 0 10px}
.article-content p{margin-bottom:14px}
.article-content img,.article-content video,.article-content iframe{max-width:100%;height:auto;border-radius:var(--radius-sm)}
.article-content table{display:block;max-width:100%;overflow-x:auto;border-collapse:collapse}
.article-content pre{max-width:100%;overflow:auto;white-space:pre-wrap;word-break:break-word;background:var(--surface2);padding:16px;border-radius:var(--radius-sm)}
.article-nav{display:flex;gap:16px;margin-top:40px;padding-top:20px;border-top:1px solid var(--line);flex-wrap:wrap}
.article-nav-prev,.article-nav-next{flex:1;min-width:200px;padding:16px;background:var(--surface2);border:1px solid var(--line);border-radius:var(--radius);transition:all .15s}
.article-nav-prev:hover,.article-nav-next:hover{border-color:var(--brand)}
.article-nav-label{color:var(--muted);font-size:12px;display:block;margin-bottom:4px}
.article-nav-title{color:var(--text);font-size:14px;font-weight:600}
.related-section{max-width:800px;margin:40px auto 0}
.related-title{font-size:18px;font-weight:700;color:var(--text);margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid var(--line)}
.related-grid{grid-template-columns:repeat(3,1fr)}
.related-card{display:flex;flex-direction:column;padding:18px;background:var(--surface2);border:1px solid var(--line);border-radius:var(--radius);transition:all .15s}
.related-card:hover{border-color:var(--brand);transform:translateY(-2px)}
.related-card-title{color:var(--text);font-size:14px;font-weight:600;line-height:1.5;margin-bottom:6px}
.related-card-desc{color:var(--muted);font-size:12px;line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.related-card-link{margin-top:auto;padding-top:12px;color:var(--brand);font-size:12px;font-weight:600}
.back-link-wrap{margin-top:20px}
.tag{display:inline-block;padding:4px 12px;border-radius:100px;font-size:12px;border:1px solid var(--line);color:var(--muted);background:var(--surface2)}
.tag.active,.tag:hover{color:var(--brand);border-color:var(--brand);background:var(--brand-light)}

/* ===== Business Pages ===== */
.page-intro{padding-top:32px}
.page-intro h1{font-size:clamp(24px,3vw,36px);line-height:1.2;color:var(--text);margin-bottom:10px}
.pricing-grid,.demo-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.case-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.price-card{display:flex;flex-direction:column;padding:28px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);min-height:380px;transition:all .15s}
.price-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}
.price-card.featured{border:2px solid var(--brand);position:relative}
.price-card.featured::before{content:'推荐';position:absolute;top:-12px;right:20px;padding:4px 14px;border-radius:100px;background:var(--brand);color:#fff;font-size:12px;font-weight:600}
.price-label,.demo-kicker{color:var(--brand);font-size:12px;font-weight:700}
.price-card h2{color:var(--text);font-size:22px;margin:10px 0 6px;font-weight:700}
.price-card>p{color:var(--muted);font-size:13px;line-height:1.7}
.price-card ul{list-style:none;margin:20px 0;display:grid;gap:8px;color:var(--text2);font-size:13px;padding:0}
.price-card li{display:flex;align-items:center;gap:8px}
.price-card li::before{content:'✓';color:var(--success);font-weight:700;flex-shrink:0}
.price-card .btn{margin-top:auto}
.demo-panel{min-width:0}
.case-card{overflow:hidden;border:1px solid var(--line);border-radius:var(--radius);background:#fff;transition:transform .15s,box-shadow .15s}
.case-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.case-card>img{display:block;width:100%;aspect-ratio:16/10;object-fit:cover;background:var(--surface2)}
.case-content{padding:18px}
.case-content h3{margin:0 0 7px;color:var(--text);font-size:16px}
.case-content p{margin:0;color:var(--muted);font-size:13px;line-height:1.7}
.demo-window{position:relative;overflow:hidden;min-height:260px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface2)}
.demo-window>img{display:block;width:100%;height:260px;object-fit:cover;object-position:top}
.demo-window .demo-content{position:absolute;inset:auto 0 0;padding:18px;background:var(--surface2);color:#fff}
.demo-window .demo-content h2,.demo-window .demo-content p{color:#fff}
.demo-window .demo-kicker{color:#b9d0ff}
.demo-panel h3{color:var(--text);font-size:16px;font-weight:700;margin:14px 0 4px}
.demo-panel>p{color:var(--muted);font-size:13px}
.demo-window{min-height:220px;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--surface2)}
.admin-window{background:var(--surface2)}
.demo-top{display:flex;gap:6px;padding:10px 14px;background:rgba(0,0,0,.03)}
.demo-top i{width:8px;height:8px;border-radius:50%;background:#ccc}
.demo-content{padding:28px 24px}
.demo-content h2{color:var(--text);font-size:22px;font-weight:700;line-height:1.3;margin:10px 0}
.demo-content p{color:var(--muted);font-size:13px;line-height:1.7;margin-bottom:20px}
.business-card{padding:24px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;min-height:140px;transition:all .15s}
.business-card:hover{border-color:var(--brand);box-shadow:0 4px 16px rgba(51,112,255,.08)}
.business-card h3{color:var(--text);margin-bottom:6px;font-size:15px;font-weight:700}
.business-card p{color:var(--muted);line-height:1.7;font-size:13px}
.doc-list{display:grid;gap:10px;max-width:800px}
.doc-list a{display:flex;align-items:flex-start;gap:16px;padding:18px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;transition:all .15s}
.doc-list a:hover{border-color:var(--brand);box-shadow:0 2px 12px rgba(51,112,255,.06)}
.doc-list b{color:var(--brand);font-size:20px;font-weight:800;opacity:.3}
.doc-list span{display:grid;gap:3px}
.doc-list strong{color:var(--text);font-size:15px;font-weight:600}
.doc-list small{color:var(--muted);font-size:13px;line-height:1.6}

/* ===== Server Table ===== */
.server-table{width:100%;border-collapse:collapse;margin-top:16px;background:#fff;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line)}
.server-table th,.server-table td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--line);font-size:13px;color:var(--text2)}
.server-table th{background:var(--surface2);color:var(--muted);font-weight:600;font-size:12px;text-transform:uppercase}
.server-table tr:last-child td{border-bottom:none}

/* ===== Brand visuals ===== */
.brand-showcase,.brand-strip,.pricing-visual{display:flex;align-items:center;gap:20px;margin:0 0 24px;padding:18px 22px;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
.brand-showcase img,.brand-strip img{width:160px;height:68px;object-fit:contain}
.pricing-visual img{width:140px;height:90px;object-fit:contain}
.brand-showcase strong,.pricing-visual strong{color:var(--text);font-size:16px;font-weight:700}
.brand-showcase span,.pricing-visual span{color:var(--muted);font-size:13px}
.contact-visual{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:20px 24px;margin-bottom:20px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface2)}
.contact-visual p{color:var(--muted);font-size:14px}
.contact-visual img{width:130px;height:110px;object-fit:contain}

/* ===== Contact ===== */
.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;max-width:1000px;margin:auto}
.contact-item{display:flex;gap:12px;align-items:center;padding:14px;background:var(--surface2);border-radius:var(--radius-sm);border:1px solid var(--line)}
.contact-item span{color:var(--brand);font-size:18px;flex-shrink:0}
.contact-item b{color:var(--text);font-size:13px;display:block}
.contact-item p{color:var(--text2);font-size:13px;margin-top:2px}

.panel-subtitle{font-size:16px;font-weight:700;color:var(--text);margin-bottom:16px;padding-bottom:10px;border-bottom:1px solid var(--line)}

.copy-contact{margin-left:auto;padding:6px 10px;border:1px solid var(--line);color:var(--brand);font-size:12px;font-weight:650;background:#fff}.copy-contact:hover{border-color:var(--brand);background:var(--brand-light)}.wechat-qr{display:grid;justify-items:center;padding:18px;margin-top:16px;background:var(--surface2);border:1px solid var(--line)}.wechat-qr img{width:160px;height:160px;object-fit:contain;background:#fff}.wechat-qr p{margin-top:8px;color:var(--muted);font-size:12px}

/* ===== Demo notice ===== */
.demo-notice{display:flex;gap:12px;align-items:flex-start;padding:14px 18px;margin:0 0 20px;border:1px solid rgba(255,143,31,.3);border-radius:var(--radius);background:rgba(255,143,31,.06)}
.demo-notice strong{color:var(--warning);font-size:13px;white-space:nowrap}
.demo-notice p{color:var(--muted);font-size:13px;line-height:1.7}

/* ===== Loading/toast ===== */
.btn.loading{pointer-events:none;opacity:.6}
.btn.loading::after{content:'';display:inline-block;width:14px;height:14px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .6s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.toast{position:fixed;top:20px;left:50%;transform:translateX(-50%);z-index:999;padding:12px 24px;border-radius:var(--radius);font-size:14px;font-weight:600;color:#fff;background:var(--success);box-shadow:var(--shadow-lg);animation:toastIn .25s;pointer-events:none}
.toast.err{background:var(--danger)}
@keyframes toastIn{from{opacity:0;transform:translateX(-50%) translateY(-10px)}to{opacity:1;transform:translateX(-50%) translateY(0)}}

/* ===== Form fields ===== */
.contact-form{padding:24px}
.contact-form .field{margin-bottom:16px}
.contact-form .field label{display:block;font-size:13px;color:var(--text2);font-weight:600;margin-bottom:6px}
.contact-form .field input:not([type=hidden]),.contact-form .field select,.contact-form .field textarea{width:100%;padding:10px 14px;border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff;color:var(--text);font:inherit;font-size:14px;box-sizing:border-box;transition:border-color .15s,box-shadow .15s;appearance:none}
.contact-form .field select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236b7a8f' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;padding-right:36px}
.contact-form .field textarea{min-height:100px;resize:vertical}
.contact-form .field input::placeholder,.contact-form .field textarea::placeholder{color:#b0bcc9}
.contact-form .field input:focus,.contact-form .field select:focus,.contact-form .field textarea:focus{border-color:var(--brand);outline:none;box-shadow:0 0 0 3px rgba(51,112,255,.1)}
.contact-form .btn[type=submit]{width:100%;margin-top:4px}
.msg{padding:12px 16px;border-radius:var(--radius-sm);margin-bottom:16px;font-size:13px}
.msg.err{background:rgba(255,77,79,.06);color:var(--danger);border:1px solid rgba(255,77,79,.2)}

/* ===== Focus/Print ===== */
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
[id]{scroll-margin-top:76px}
@media print{.nav,.footer,.float-cta,.breadcrumb,.cta,.cta-section,.hero-actions,.stats{display:none!important}body{background:#fff}.article-content{color:#000}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;scroll-behavior:auto!important;transition-duration:.01ms!important}}

/* ===== Article Share / Progress / Back to Top ===== */
.article-share{display:flex;align-items:center;gap:8px;margin:16px 0 24px;font-size:13px;color:var(--muted)}
.share-btn{display:inline-block;padding:5px 14px;border-radius:100px;border:1px solid var(--line);color:var(--text2);font-size:12px;font-weight:500;transition:all .15s;background:#fff}
.share-btn:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-light)}
.article-progress-wrap{position:fixed;top:0;left:0;right:0;z-index:101;height:3px;background:transparent;pointer-events:none}
.article-progress{height:100%;background:var(--brand);width:0;transition:width .1s linear}
.back-to-top{position:fixed;right:20px;bottom:80px;z-index:98;display:none;align-items:center;justify-content:center;width:44px;height:44px;border-radius:50%;background:var(--brand);color:#fff;font-size:18px;box-shadow:0 4px 16px rgba(51,112,255,.3);transition:all .15s;text-decoration:none}
.back-to-top:hover{background:var(--brand2);transform:translateY(-2px)}
.price-range{display:flex;align-items:baseline;gap:6px;margin:8px 0 6px;color:var(--brand)}
.price-range b{font-size:25px;font-weight:800;line-height:1.2}
.price-range small{font-size:12px;color:var(--muted);font-weight:600}
.pricing-editor{display:grid;gap:16px}
.pricing-edit-item{min-width:0;padding:18px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface2)}
.pricing-edit-item{position:relative}
.pricing-edit-item legend{padding:0 8px;color:var(--brand);font-size:13px;font-weight:700}
.pricing-remove{position:absolute;top:14px;right:16px;padding:5px 9px;border:1px solid #f0b7b7;border-radius:7px;background:#fff;color:#c53b3b;font-size:12px;cursor:pointer}
.pricing-remove:hover{background:#fff3f3}
.empty-ico{position:relative;width:34px;height:34px;margin:0 auto 10px;color:var(--muted)}
.empty-ico-folder:before{content:'';position:absolute;inset:8px 3px 5px;border:2px solid currentColor;border-radius:4px}
.empty-ico-folder:after{content:'';position:absolute;left:6px;top:4px;width:12px;height:7px;border:2px solid currentColor;border-bottom:0;border-radius:4px 4px 0 0}
.empty-ico-tag:before{content:'';position:absolute;inset:5px 3px 7px;border:2px solid currentColor;border-radius:5px;transform:rotate(-45deg)}
.empty-ico-clipboard:before{content:'';position:absolute;inset:5px 6px 3px;border:2px solid currentColor;border-radius:4px}
.empty-ico-clipboard:after{content:'';position:absolute;left:11px;top:2px;width:10px;height:7px;border:2px solid currentColor;border-radius:4px}
.check-field{display:flex;align-items:center;gap:8px;color:var(--text2);font-size:13px;font-weight:600}
.check-field input{accent-color:var(--brand)}
.business-card{padding:24px;border:1px solid var(--line);border-radius:10px;background:var(--surface)}
.business-card h3{margin-bottom:8px;color:var(--text);font-size:16px}
.business-card p{color:var(--muted);line-height:1.8;font-size:13px}
.docs-workspace{display:grid;grid-template-columns:260px minmax(0,1fr);gap:24px;max-width:1180px;margin:32px auto 48px;padding:0 24px}
.docs-sidebar{position:sticky;top:84px;align-self:start;padding:18px;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
.docs-sidebar-title{font-size:15px;font-weight:800;color:var(--text);margin-bottom:14px}
.docs-search{display:block;margin-bottom:14px;color:var(--muted);font-size:12px;font-weight:600}
.docs-search input{display:block;width:100%;margin-top:7px;padding:9px 10px;border:1px solid var(--line);border-radius:8px;color:var(--text);background:var(--surface2);outline:none}
.docs-search input:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-light)}
.docs-nav{display:grid;gap:4px}
.docs-nav-item{display:flex;align-items:center;gap:9px;padding:10px;border-radius:8px;color:var(--muted);font-size:13px;line-height:1.4}
.docs-nav-item:hover,.docs-nav-item.active{background:var(--brand-light);color:var(--brand);font-weight:700}
.docs-nav-icon{display:grid;place-items:center;width:22px;height:22px;flex:none}
.docs-nav-icon svg{width:20px;height:20px}
.docs-content{min-width:0}
.docs-content-head{display:flex;align-items:end;justify-content:space-between;gap:20px;padding-bottom:22px;border-bottom:1px solid var(--line)}
.docs-content-head small{color:var(--brand);font-weight:800;font-size:11px;letter-spacing:.08em}
.docs-content-head h2{margin:8px 0;color:var(--text);font-size:28px}
.docs-content-head p{color:var(--muted);font-size:14px}
.docs-articles{display:grid;gap:12px;padding-top:18px}
.docs-article{display:flex;gap:18px;padding:22px;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
.docs-article-icon{display:grid;place-items:center;flex:none;width:48px;height:48px;border-radius:10px;background:var(--brand-light);color:var(--brand)}
.docs-article-icon svg{width:25px;height:25px}
.docs-article h3{margin:0 0 6px;color:var(--text);font-size:17px}
.docs-article p{margin:0 0 10px;color:var(--muted);font-size:13px;line-height:1.7}
.docs-article .text-link{font-size:13px}

/* ===== API docs ===== */
.api-example{display:grid;grid-template-columns:minmax(0,.8fr) minmax(420px,1.2fr);gap:32px;align-items:start}.api-example h3{font-size:18px;margin-bottom:8px}.api-example p,.api-example li{color:var(--muted);font-size:14px;line-height:1.8}.api-example ul{padding-left:18px;margin-top:16px}.api-example pre{overflow:auto;padding:22px;background:#111820;color:#d9e4f0;border-radius:var(--radius);font:13px/1.75 ui-monospace,SFMono-Regular,Menlo,monospace}.api-example code{white-space:pre}
@media(max-width:780px){.api-example{grid-template-columns:1fr;gap:18px}.api-example pre{padding:16px;font-size:12px}}

/* ===== Docs Page ===== */
.docs-hero{padding:72px 24px 56px;text-align:center;background:var(--surface2)}
.docs-hero-eyebrow{color:var(--brand);font-size:13px;font-weight:600;margin-bottom:12px}
.docs-hero h1{font-size:clamp(28px,4vw,42px);font-weight:800;color:var(--text);letter-spacing:-.02em;margin-bottom:0}
.docs-hero h1 b{color:var(--brand);margin:0 8px;font-weight:800}
.docs-hero h1 em{font-style:normal;color:var(--brand)}
.docs-hero-divider{width:56px;height:3px;background:var(--brand);border-radius:2px;margin:20px auto}
.docs-hero-desc{color:var(--muted);font-size:15px;line-height:1.8;max-width:520px;margin:0 auto 28px}
.docs-hero-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.docs-section{margin-top:-24px;position:relative;z-index:2}
.doc-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.doc-card{display:flex;align-items:center;gap:18px;padding:22px 24px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;transition:all .15s;text-decoration:none}
.doc-card:hover{border-color:var(--brand);box-shadow:0 4px 16px rgba(51,112,255,.1);transform:translateY(-2px)}
.doc-card-icon{display:grid;place-items:center;width:52px;height:52px;border-radius:12px;background:var(--brand-light);font-size:24px;flex-shrink:0}
.doc-card-content{flex:1;min-width:0}
.doc-card-content strong{display:block;color:var(--text);font-size:15px;font-weight:700;margin-bottom:4px}
.doc-card-content span{display:block;color:var(--muted);font-size:13px;line-height:1.6}
.doc-card-arrow{color:var(--line);font-size:18px;flex-shrink:0;transition:color .15s,transform .15s}
.doc-card:hover .doc-card-arrow{color:var(--brand);transform:translateX(3px)}
.docs-updates{max-width:1200px;margin:0 auto 24px;padding:0 24px}
.docs-updates-inner{display:flex;align-items:center;gap:16px;padding:14px 20px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;flex-wrap:wrap}
.docs-updates-label{display:flex;align-items:center;gap:6px;flex-shrink:0}
.docs-updates-label strong{color:var(--text);font-size:13px}
.docs-updates-list{flex:1;display:flex;gap:20px;overflow:hidden;flex-wrap:wrap}
.docs-updates-list a{color:var(--muted);font-size:13px;white-space:nowrap;transition:color .15s}
.docs-updates-list a:hover{color:var(--brand)}
.docs-updates-more{color:var(--brand);font-size:13px;font-weight:600;white-space:nowrap;flex-shrink:0}
/* ===== Scroll reveal ===== */
.reveal{opacity:0;transform:translateY(20px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

/* ===== Blog page ===== */
.blog-hero{padding:48px 0 32px;text-align:center}
.blog-hero h1{font-size:clamp(24px,3vw,36px);font-weight:800;color:var(--text)}
.blog-hero p{color:var(--muted);font-size:14px;margin-top:6px}
.blog-filter{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:24px;justify-content:center}
.blog-filter .tag{cursor:pointer;padding:6px 16px;font-size:13px}
.blog-card{display:flex;flex-direction:column;padding:24px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);transition:all .15s;text-decoration:none;margin-bottom:14px}
.blog-card:hover{border-color:var(--brand);box-shadow:0 4px 16px rgba(51,112,255,.08);transform:translateY(-2px)}
.blog-card h2{color:var(--text);font-size:17px;font-weight:700;margin-bottom:8px;line-height:1.5}
.blog-card p{color:var(--muted);font-size:13px;line-height:1.7;margin-bottom:12px}
.blog-card-meta{display:flex;gap:16px;color:var(--muted);font-size:12px;flex-wrap:wrap}

/* ===== Blog and article editorial layouts ===== */
.blog-page{padding:0 20px 48px}.blog-page>.breadcrumb{padding-left:0;padding-right:0}.blog-page>.section{margin-bottom:0}
.blog-search{display:flex;gap:10px;align-items:center;padding:18px;background:var(--surface2);border:1px solid var(--line);margin-bottom:22px}.blog-search input{flex:1;min-width:0;height:44px;padding:0 14px;border:1px solid var(--line);background:#fff;color:var(--text);font:inherit}.blog-search input:focus{outline:2px solid var(--brand);outline-offset:1px}
.blog-taxonomy{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;padding:20px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-bottom:22px}.blog-taxonomy strong{display:block;color:var(--text);font-size:13px;margin-bottom:10px}.blog-taxonomy>div>div{display:flex;gap:7px;flex-wrap:wrap}.tag{display:inline-flex;align-items:center;gap:4px;padding:6px 10px;border:1px solid var(--line);background:#fff;color:var(--muted);font-size:12px}.tag:hover,.tag.active{border-color:var(--brand);color:var(--brand);background:var(--brand-light)}.tag span{opacity:.7}
.blog-current{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 14px;margin-bottom:18px;background:var(--brand-light);color:var(--text2);font-size:13px}.blog-current a{color:var(--brand);font-weight:650}
.blog-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.blog-card{margin:0;padding:0}.blog-card>a{display:flex;flex-direction:column;height:100%;padding:24px}.blog-card h2{font-size:19px}.blog-card p{flex:1;font-size:14px}.blog-card .text-link{margin-top:8px}.pagination{display:flex;align-items:center;justify-content:center;gap:14px;margin-top:28px}.pagination span{color:var(--muted);font-size:13px}
.article-page{max-width:860px}.article-title{font-size:clamp(28px,4vw,42px);line-height:1.25;letter-spacing:-.02em}.article-meta{padding-bottom:18px;border-bottom:1px solid var(--line)}.article-content{font-size:16px;line-height:1.95}.article-content h2{font-size:25px;margin-top:38px}.article-content h3{font-size:20px;margin-top:30px}.article-content blockquote{padding:16px 20px;margin:20px 0;border-left:3px solid var(--brand);background:var(--surface2);color:var(--text2)}.article-content ul,.article-content ol{padding-left:24px;margin:0 0 18px}.article-content a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}.related-section{margin-top:48px}.related-title{font-size:21px;margin-bottom:16px}
@media(max-width:780px){.blog-page{padding:0 12px 28px}.blog-search{align-items:stretch;flex-direction:column;padding:14px}.blog-search .btn{width:100%}.blog-taxonomy,.blog-list{grid-template-columns:1fr}.blog-taxonomy{gap:14px}.blog-card>a{padding:18px}.pagination{justify-content:space-between}.pagination span{font-size:12px}.article-content{font-size:15px;line-height:1.85}.article-title{font-size:28px}}

/* ===== Scroll offset ===== */
h2[id],h3[id]{scroll-margin-top:76px}

/* ===== Smooth links ===== */
a{transition:color .15s var(--ease)}

.faq-toggle{color:var(--brand);font-size:20px;font-weight:300;transition:transform .2s;position:relative;width:20px;height:20px;display:inline-block}
.faq-toggle::before,.faq-toggle::after{content:'';position:absolute;background:currentColor;top:50%;left:50%}
.faq-toggle::before{width:14px;height:2px;transform:translate(-50%,-50%)}
.faq-toggle::after{width:2px;height:14px;transform:translate(-50%,-50%)}
details[open] .faq-toggle::after{opacity:0}
details[open] .faq-toggle{transform:rotate(180deg)}

/* ===== Admin utilities ===== */
.editor-table{width:100%;border-collapse:collapse}
.editor-td{border:1px solid #ddd;padding:8px}


.form-inline{display:flex;gap:8px;align-items:center}
.form-search{display:flex;gap:8px;margin-bottom:16px;flex-wrap:wrap}
.form-search input[type=text]{flex:1;min-width:150px;padding:8px 12px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--text);font-size:13px}
.form-search select{padding:8px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--text);font-size:13px}
.form-textarea{width:100%;padding:12px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--text);font:13px/1.6 monospace;resize:vertical}
.form-color{width:100%;height:38px;border:1px solid var(--line);border-radius:8px;cursor:pointer;padding:2px}
.form-upload .upload{color:var(--muted)}
.form-input{flex:1;min-width:150px;padding:8px 12px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--text);font-size:13px}
.form-search-select{padding:8px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--text);font-size:13px}
.form-narrow{max-width:360px;width:100%}
.form-flex{flex:1}
.form-mini{max-width:60px}
.form-full{width:100%}
.ml-auto{margin-left:auto}
.text-center{text-align:center}
.full{min-height:100vh}
.place{display:grid;place-items:center}
.code{background:var(--surface2);border:1px solid var(--line);border-radius:8px;padding:16px;font:13px/1.6 monospace;white-space:pre-wrap;word-break:break}
.theme-swatch{width:100%;height:40px;border-radius:8px;margin-bottom:8px}
.theme-swatch.default{background:var(--surface2)}
.theme-swatch.dark{background:var(--surface2)}
.theme-swatch.green{background:var(--surface2)}
.theme-swatch.purple{background:var(--surface2)}
.img-responsive{max-width:100%;height:auto}
@media(max-width:1024px){
.nav-inner{gap:12px}.nav-links a{padding:6px 9px;font-size:13px}.nav-cta{padding:8px 14px}
.hero{padding:56px 0 48px}.hero-inner{grid-template-columns:1fr 1fr;gap:28px}.hero-left h1{font-size:36px}
.product-preview{padding:13px 13px 46px}.product-preview-main{width:88%}.product-preview-side{width:58%;bottom:34px}
.grid{grid-template-columns:repeat(2,minmax(0,1fr))}.pricing-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.pricing-grid .price-card:last-child{grid-column:1/-1;max-width:560px;width:100%;justify-self:center}
.section{padding:52px 28px}.docs-workspace{grid-template-columns:220px minmax(0,1fr);padding:0 20px}
}
@media(max-width:780px){.docs-hero{padding:48px 16px 40px}.docs-hero h1{font-size:26px}.docs-hero-desc{font-size:14px}.docs-hero-actions{gap:8px}.docs-hero-actions .btn{min-height:42px;padding:8px 14px}.doc-cards{grid-template-columns:1fr}.doc-card{padding:16px;gap:14px}.doc-card-icon{width:44px;height:44px;font-size:20px}.docs-updates-inner{flex-direction:column;align-items:flex-start}.docs-updates-list{flex-direction:column;gap:8px}.docs-workspace{grid-template-columns:1fr;gap:16px;margin:16px auto 32px;padding:0 12px}.docs-sidebar{position:static;padding:16px}.docs-content{min-width:0}.docs-content-head{align-items:flex-start;flex-direction:column;gap:12px;padding:6px 4px 18px}.docs-content-head h2{font-size:25px;line-height:1.35}.docs-content-head p{font-size:14px;line-height:1.7}.docs-content-head .btn{width:100%;justify-content:center}.docs-articles{padding-top:12px}.docs-article{gap:12px;padding:16px}.docs-article-icon{width:42px;height:42px}.docs-article h3{font-size:16px;word-break:break-word}.docs-article p{font-size:13px;word-break:break-word}.docs-nav-item{padding:10px 8px}.docs-search input{font-size:16px}}
@media(max-width:780px){
.nav-inner{padding:0 16px}
.nav-links,.nav-cta{display:none}
.navurger{display:flex}
.nav-links.mobile-open{display:flex!important;position:fixed;top:60px;left:0;right:0;z-index:101;flex-direction:column;background:#fff;border-bottom:1px solid var(--line);padding:8px 16px 16px;gap:2px;max-height:calc(100vh - 60px);overflow-y:auto;box-shadow:0 8px 32px rgba(0,0,0,.08)}
.nav-menu-backdrop{display:none}
.nav-menu-backdrop.open{display:block;position:fixed;inset:60px 0 0;z-index:90;background:rgba(15,24,38,.22)}
body.nav-open{overflow:hidden}
.nav-links.mobile-open a{display:flex;align-items:center;padding:14px 16px;border-radius:var(--radius-sm);font-size:15px;font-weight:600;color:var(--text);min-height:48px}
.nav-links.mobile-open a:hover{color:var(--brand);background:var(--brand-light)}
.nav-links.mobile-open li:last-child{margin-top:8px;border-top:1px solid var(--line);padding-top:8px}
.nav-links.mobile-open li:last-child a{justify-content:center;background:var(--brand);color:#fff;font-weight:700}
.hero{padding:40px 0 32px}
.hero-inner{grid-template-columns:1fr;gap:24px;padding:0 16px}
.hero-left h1{font-size:28px}
.hero-visual-image{max-height:240px;margin:0 auto}
.scenic-section{background-size:auto 100%;background-position:right center}
.hero-right{order:2;grid-column:1;grid-row:auto}
.hero-left{order:1;grid-column:1}
.hero-desc{font-size:14px}
.stats{grid-template-columns:repeat(2,1fr);gap:0;padding:16px;margin-top:-24px}
.stat{padding:8px 12px}
.stat:not(:last-child){border-right:none}
.stat:nth-child(odd){border-right:1px solid var(--line)}
.stat b{font-size:22px}
.stat span{font-size:11px}
.section{padding:32px 20px;margin:0 12px 16px}
.section-head h1{font-size:24px}
.section-head h2{font-size:22px}

.grid a{padding:18px}
.ic-box{width:40px;height:40px;font-size:18px}
.service-grid,.grid-service,.step-grid,.grid-step,.article-list,.pricing-grid,.demo-grid,.case-grid,.contact-grid,.related-grid{grid-template-columns:1fr;gap:10px}
.price-card{min-height:0;padding:22px}
.page-intro{padding-top:16px}
.page-intro h1{font-size:24px}
.demo-content{padding:20px 16px}
.doc-list a{padding:14px}
.cta,.cta-section{padding:36px 20px;margin:16px 12px}
.cta h2,.cta-section h2{font-size:22px}
.footer{padding:32px 0 20px}
.footer-links{flex-wrap:wrap;gap:14px}
.footer-bottom{display:block;line-height:1.8}
.float-cta{right:14px;bottom:14px;min-height:44px;padding:0 18px;font-size:13px}
.contact-visual{align-items:flex-start;flex-direction:column;padding:18px}
.contact-visual img{width:100%;height:160px}
.brand-showcase,.brand-strip,.pricing-visual{align-items:flex-start;gap:10px;padding:14px;flex-direction:column}
.brand-showcase img,.brand-strip img,.pricing-visual img{width:100%;height:130px;object-fit:contain}
.server-table{display:block;overflow-x:auto}
.contact-grid{margin-top:8px}
.contact-form{padding:18px}
.contact-form .btn[type=submit]{min-height:46px}
.contact-item{padding:12px}
.panel{padding:18px}
.related-grid{grid-template-columns:1fr}
.article-nav-prev,.article-nav-next{min-width:0;width:100%}
}

@media(max-width:360px){
.hero-left h1{font-size:26px}
.stats{grid-template-columns:1fr}
.stat:not(:last-child){border-right:none}
.stat{border-bottom:1px solid var(--line);padding:10px 0}
.stat:last-child{border-bottom:none}
.grid{grid-template-columns:1fr}
}

@media(prefers-reduced-motion:reduce){
html{scroll-behavior:auto}
.btn,.grid a,.price-card,.article-card{transition:none}
}

/* 图片基础约束 */
.brand-ico img[src*=".svg"],.brand-ico img[src*=".png"],.brand-ico img[src*=".webp"]{min-width:24px;min-height:24px}

/* 移动菜单位于遮罩上方；移除建立固定定位包含块的模糊滤镜。 */
.nav-menu-backdrop{display:none}
@media(max-width:780px){.nav{backdrop-filter:none;background:#fff}.nav-menu-backdrop.open{display:block}}

/* ===== 企业风统一排版与阅读布局 ===== */
.hero,.docs-hero{background:#f4f6f8}
.hero-visual-image{filter:none}
.eyebrow{padding:0;background:none;border-radius:0;letter-spacing:.06em}
.section{border-radius:0;box-shadow:none}
.cta,.cta-section{background:#202b3b;border-radius:var(--radius)}
.cta::before,.cta-section::before{display:none}
.cta .btn,.cta-section .btn{margin:4px}
.btn:hover,.nav-cta:hover,.price-card:hover,.case-card:hover,.grid a:hover,.blog-card:hover{transform:none;box-shadow:none}
.nav-cta,.float-cta{box-shadow:none}
.demo-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
.demo-window{background:#fff;min-height:0}
.demo-window>img{width:100%;height:auto;aspect-ratio:1280/853;object-fit:contain}
.demo-window .demo-content{position:static;background:#fff;color:var(--text);padding:24px}
.demo-window .demo-content h2{color:var(--text)}
.demo-window .demo-content p{color:var(--muted)}
.demo-window .demo-kicker{color:var(--brand)}
.docs-article>div:last-child{min-width:0;overflow-wrap:anywhere}
.docs-article{scroll-margin-top:80px}
.docs-nav-item[hidden],.docs-article[hidden]{display:none}
.docs-search-empty{padding:24px;color:var(--muted)}
@media(max-width:780px){.demo-grid{grid-template-columns:1fr}.hero,.docs-hero{padding-top:36px}.section{padding:28px 16px}.demo-window .demo-content{padding:18px}.brand{min-width:0;flex-shrink:1}.brand>span:last-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.navurger{flex-shrink:0}}

/* ===== About / Cases / Demo / FAQ enterprise layouts ===== */
.about-lead{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(280px,.9fr);gap:44px;align-items:center;padding-top:8px}
.about-lead img{width:100%;max-height:380px;object-fit:contain;background:var(--surface2);border-radius:var(--radius);border:1px solid var(--line)}
.about-copy h2{font-size:28px;line-height:1.3;margin-bottom:16px;color:var(--text)}
.about-copy p{color:var(--text2);font-size:15px;line-height:1.9;margin-bottom:12px}
.about-copy .hero-actions{margin-top:24px}
.about-advantages{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
.about-advantages article{padding:22px;border-top:2px solid var(--brand);background:#fff}
.about-advantages span{display:block;color:var(--brand);font-size:12px;font-weight:800;margin-bottom:18px}
.about-advantages h3{font-size:16px;margin-bottom:8px;color:var(--text)}
.about-advantages p{font-size:13px;line-height:1.75;color:var(--muted)}
.about-contact{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border:1px solid var(--line);background:#fff}
.about-contact>div{padding:22px}.about-contact>div+div{border-left:1px solid var(--line)}
.about-contact span{display:block;color:var(--muted);font-size:12px;margin-bottom:6px}.about-contact strong{display:block;color:var(--text);font-size:15px;overflow-wrap:anywhere}
.case-summary{display:grid;grid-template-columns:240px minmax(0,1fr);gap:34px;align-items:center;padding:24px;margin-bottom:24px;background:var(--surface2);border:1px solid var(--line)}
.case-summary img{width:240px;height:180px;object-fit:contain}.case-summary span{color:var(--brand);font-size:11px;font-weight:800;letter-spacing:.08em}.case-summary h2{font-size:25px;margin:9px 0;color:var(--text)}.case-summary p{max-width:650px;color:var(--muted);line-height:1.8}
.case-card{display:flex;flex-direction:column}.case-card>img{aspect-ratio:16/9}.case-content{display:flex;flex-direction:column;flex:1;padding:20px}.case-content>span{color:var(--brand);font-size:11px;font-weight:800;margin-bottom:10px}.case-content h3{font-size:18px}.case-content p{font-size:14px}
.demo-page{padding-bottom:48px}.demo-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.demo-card{overflow:hidden;border:1px solid var(--line);background:#fff}.demo-image{position:relative;background:var(--surface2);border-bottom:1px solid var(--line)}.demo-image img{width:100%;aspect-ratio:1280/853;object-fit:cover;object-position:top}.demo-image span{position:absolute;left:14px;bottom:14px;padding:5px 9px;background:#fff;color:var(--brand);font-size:10px;font-weight:800;letter-spacing:.08em;border:1px solid var(--line)}
.demo-card .demo-content{display:flex;flex-direction:column;padding:24px}.demo-credentials{display:grid;grid-template-columns:1fr auto;gap:7px 12px;padding:12px;margin:0 0 18px;background:var(--surface2);color:var(--text2);font-size:12px}.demo-credentials button{color:var(--brand);font-size:11px;font-weight:700}.demo-credentials b{color:var(--text)}.demo-card .demo-content h2{font-size:21px;margin:0 0 8px}.demo-card .demo-content p{min-height:44px;margin-bottom:16px}.demo-card ul{display:grid;gap:8px;list-style:none;margin:0 0 22px;color:var(--text2);font-size:13px}.demo-card li:before{content:'✓';margin-right:8px;color:var(--success);font-weight:700}.demo-card .btn{align-self:flex-start}
.faq-page .faq-grid{max-width:none;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 28px}.faq-page details{border-top:1px solid var(--line);border-bottom:0}.faq-question{display:grid;gap:4px}.faq-question small{color:var(--brand);font-size:10px;font-weight:700;letter-spacing:.04em}.content-empty{padding:48px 24px;text-align:center;background:var(--surface2);border:1px solid var(--line)}.content-empty h2{font-size:20px;margin-bottom:8px}.content-empty p{color:var(--muted);margin-bottom:20px}
@media(max-width:1024px){.about-advantages{grid-template-columns:repeat(2,minmax(0,1fr))}.case-summary{grid-template-columns:190px 1fr}.case-summary img{width:190px;height:150px}}
@media(max-width:780px){.about-lead{grid-template-columns:1fr;gap:24px}.about-lead img{max-height:260px}.about-copy h2{font-size:23px}.about-advantages,.about-contact,.faq-page .faq-grid{grid-template-columns:1fr}.about-contact>div+div{border-left:0;border-top:1px solid var(--line)}.case-summary{grid-template-columns:1fr;padding:18px;gap:16px}.case-summary img{width:100%;height:180px}.case-summary h2{font-size:21px}.demo-grid{grid-template-columns:1fr}.demo-card .demo-content{padding:18px}.demo-card .btn{width:100%}}

/* ===== Legal page ===== */
.legal-page{max-width:960px}.legal-content{max-width:760px}.legal-content h2{font-size:20px;margin:30px 0 8px;color:var(--text)}.legal-content h2:first-child{margin-top:0}.legal-content p{font-size:15px;line-height:1.9;color:var(--text2)}.legal-content a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}

/* ===== Error page ===== */
.error-page{display:grid;grid-template-columns:260px minmax(0,1fr);gap:48px;align-items:center;min-height:460px}.error-code{font-size:clamp(88px,13vw,170px);font-weight:850;line-height:.9;letter-spacing:-.08em;color:var(--brand)}.error-page small{color:var(--brand);font-size:11px;font-weight:800;letter-spacing:.1em}.error-page h1{font-size:clamp(28px,4vw,42px);margin:10px 0}.error-page p{max-width:580px;color:var(--muted);font-size:15px;line-height:1.8}.error-page .hero-actions{margin-top:24px}
@media(max-width:780px){.error-page{grid-template-columns:1fr;gap:22px;min-height:420px}.error-code{font-size:96px}.error-page .btn{flex:1}}

/* ===== HTML 站点地图 ===== */
.sitemap-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;max-width:1100px;margin:0 auto}
.sitemap-grid h2{font-size:18px;color:var(--text);margin:0 0 14px}
.sitemap-links{list-style:none;border-top:1px solid var(--line)}
.sitemap-links li{border-bottom:1px solid var(--line)}
.sitemap-links a{display:block;padding:13px 2px}
.sitemap-links a:hover strong{color:var(--brand)}
.sitemap-links strong{display:block;color:var(--text);font-size:14px;font-weight:650}
.sitemap-links span{display:block;margin-top:3px;color:var(--muted);font-size:12px;line-height:1.55}
@media(max-width:780px){.sitemap-grid{grid-template-columns:1fr;gap:24px}}

/* ===== 运营页面细节收口 ===== */
.media-delete{position:absolute;inset:0;margin:0}
.media-delete .del-overlay{border:0}
.demo-window .demo-content .btn{margin-top:4px}
.case-card>img{border-bottom:1px solid var(--line)}
.contact-item p{overflow-wrap:anywhere}
.server-table td:first-child{font-weight:600;color:var(--text)}
@media(max-width:780px){.server-table th,.server-table td{min-width:130px;padding:11px 12px}.case-content{padding:16px}.contact-item{align-items:flex-start}}