/* ============ Base / Reset ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;tab-size:4}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",sans-serif;font-size:15px;line-height:1.65;color:#1f2937;background:#fff;-webkit-font-smoothing:antialiased}
img,svg{display:inline-block;vertical-align:middle;max-width:100%}
a{color:#4f46e5;text-decoration:none;transition:color .15s}
a:hover{color:#4338ca}
button{cursor:pointer;background:none;border:none;font:inherit;color:inherit}
ul,ol{margin:0;padding:0}
:root{
  --c-accent:#4f46e5;
  --c-accent-2:#ec4899;
  --c-accent-soft:#eef2ff;
  --c-text:#1f2937;
  --c-text-muted:#6b7280;
  --c-border:#e5e7eb;
  --c-border-light:#f3f4f6;
  --c-bg:#fff;
  --c-bg-alt:#fafafa;
  --c-bg-code:#0b1020;
  --c-bg-code-inline:#f3f4f6;
  --c-pink:#ec4899;
  --r-sm:6px;
  --r-md:10px;
  --r-lg:14px;
  --shadow-sm:0 1px 2px rgba(15,23,42,.04);
  --shadow-md:0 4px 14px rgba(15,23,42,.06);
}

/* ============ Topbar ============ */
.topbar{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.92);backdrop-filter:saturate(180%) blur(10px);-webkit-backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--c-border-light)}
.topbar-inner{display:flex;align-items:center;gap:16px;height:56px;padding:0 22px;max-width:1440px;margin:0 auto}
.brand{display:flex;align-items:center;gap:8px;text-decoration:none;color:var(--c-text);font-weight:600;font-size:15px}
.brand-name{letter-spacing:-.01em}
.brand-version{font-size:11px;color:var(--c-text-muted);background:var(--c-border-light);padding:2px 6px;border-radius:4px;font-weight:500}
.brand-mark{flex-shrink:0}
.topbar-search{position:relative;flex:1;max-width:380px;margin:0 auto 0 12px;display:flex;align-items:center}
.topbar-search input{width:100%;height:34px;padding:0 12px 0 38px;background:var(--c-border-light);border:1px solid transparent;border-radius:8px;font-size:13px;color:var(--c-text);transition:all .15s}
.topbar-search input:focus{outline:none;background:#fff;border-color:var(--c-accent);box-shadow:0 0 0 3px rgba(79,70,229,.12)}
.topbar-search::before{content:'';position:absolute;left:12px;top:50%;transform:translateY(-50%);width:14px;height:14px;background:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2'><circle cx='11' cy='11' r='8'/><line x1='21' y1='21' x2='16.65' y2='16.65'/></svg>") center/contain no-repeat}
.search-key{position:absolute;right:10px;top:50%;transform:translateY(-50%);font-size:11px;color:var(--c-text-muted);background:#fff;border:1px solid var(--c-border);border-radius:4px;padding:2px 6px;pointer-events:none}
.topbar-nav{display:flex;align-items:center;gap:18px;margin-left:auto}
.topbar-link{font-size:14px;color:var(--c-text);text-decoration:none;font-weight:500}
.topbar-link:hover{color:var(--c-accent)}
.topbar-sep{width:1px;height:18px;background:var(--c-border)}
.lang-switch{position:relative}
.lang-toggle{display:inline-flex;align-items:center;gap:5px;padding:6px 9px;background:transparent;border:1px solid var(--c-border-light);border-radius:6px;font-size:12.5px;color:var(--c-text);transition:all .15s;cursor:pointer}
.lang-toggle:hover{border-color:var(--c-border);background:var(--c-border-light)}
.lang-switch.open .lang-toggle{border-color:var(--c-accent);color:var(--c-accent);background:var(--c-accent-soft)}
.lang-current{font-weight:600;font-size:12px;letter-spacing:.02em}
.lang-dropdown{position:absolute;top:calc(100% + 6px);right:0;background:#fff;border:1px solid var(--c-border);border-radius:10px;box-shadow:var(--shadow-md);padding:6px;min-width:148px;z-index:50}
.lang-dropdown a{display:block;padding:7px 12px;font-size:13px;color:var(--c-text);text-decoration:none;border-radius:5px;transition:background .12s}
.lang-dropdown a:hover{background:var(--c-border-light);color:var(--c-text)}
.lang-dropdown a.active{background:var(--c-accent-soft);color:var(--c-accent);font-weight:500}
.topbar-cta{padding:6px 14px;background:linear-gradient(135deg,#4f46e5,#7c3aed);color:#fff!important;border-radius:6px;font-size:13px;font-weight:600;letter-spacing:.01em}
.topbar-cta:hover{background:linear-gradient(135deg,#4338ca,#6d28d9);color:#fff!important}
.mobile-menu-btn{display:none;width:36px;height:36px;align-items:center;justify-content:center;color:var(--c-text);border-radius:6px}
.mobile-menu-btn:hover{background:var(--c-border-light)}

.search-results-pop{position:fixed;top:54px;left:50%;transform:translateX(-50%);width:380px;max-height:380px;overflow-y:auto;background:#fff;border:1px solid var(--c-border);border-radius:10px;box-shadow:var(--shadow-md);z-index:50;padding:6px}
.search-results-pop a{display:flex;align-items:center;justify-content:space-between;padding:10px 12px;border-radius:6px;color:var(--c-text);text-decoration:none;font-size:13px}
.search-results-pop a:hover{background:var(--c-border-light)}
.search-results-pop .r-c{font-size:11px;color:var(--c-text-muted);background:var(--c-accent-soft);padding:2px 6px;border-radius:4px;margin-left:8px;flex-shrink:0}

/* ============ Docs Shell (sidebar + main) ============ */
.docs-shell{display:flex;max-width:1440px;margin:0 auto;align-items:flex-start;min-height:calc(100vh - 56px)}
.docs-sidebar{width:260px;flex-shrink:0;border-right:1px solid var(--c-border-light);position:sticky;top:56px;align-self:flex-start;height:calc(100vh - 56px);overflow-y:auto;padding:24px 0 32px}
.docs-sidebar-inner{padding:0 18px}
.sb-block{margin-bottom:22px}
.sb-section-title{font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:#374151;margin:0 0 8px;padding:0 4px}
.sb-section-title a{color:inherit;text-decoration:none}
.sb-section-title a:hover{color:var(--c-accent)}
.sb-list{list-style:none}
.sb-link{display:block;padding:5px 8px;color:var(--c-text-muted);font-size:13px;line-height:1.45;border-radius:5px;text-decoration:none;border-left:2px solid transparent;margin-left:-2px}
.sb-link:hover{color:var(--c-text);background:var(--c-border-light)}
.sb-link.active{color:var(--c-accent);background:var(--c-accent-soft);border-left-color:var(--c-accent);font-weight:500}
.sb-link--more{color:var(--c-accent);font-weight:500;font-size:12px}

.docs-main{flex:1;min-width:0}
.docs-main-grid{display:grid;grid-template-columns:1fr 220px;gap:48px;padding:32px 40px 80px;max-width:1180px}
.docs-main-grid--full{grid-template-columns:1fr;max-width:920px}
.post-wrap{min-width:0}
.post-wrap--list{padding-bottom:40px}

/* ============ Breadcrumb ============ */
.docs-breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:6px;font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--c-text-muted);margin-bottom:14px;font-weight:500}
.docs-breadcrumb a{color:var(--c-text-muted);text-decoration:none}
.docs-breadcrumb a:hover{color:var(--c-accent)}
.bc-sep{color:#d1d5db}
.bc-current{color:var(--c-accent);font-weight:600}

/* ============ Post header ============ */
.post-eyebrow{margin-bottom:6px}
.eyebrow-cat{display:inline-block;background:linear-gradient(90deg,#eef2ff,#fce7f3);color:#4f46e5;font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;padding:4px 10px;border-radius:30px}
.post-title{font-size:36px;line-height:1.18;margin:0 0 14px;letter-spacing:-.02em;color:#0f172a;font-weight:700}
.post-meta{display:flex;flex-wrap:wrap;gap:18px;color:var(--c-text-muted);font-size:13px;margin-bottom:18px}
.meta-item{display:inline-flex;align-items:center;gap:6px}
.meta-item svg{opacity:.7}
.post-lead{font-size:16px;line-height:1.7;color:#374151;background:linear-gradient(90deg,#fafafa,#f9fafb);border-left:3px solid var(--c-accent);padding:14px 18px;border-radius:0 8px 8px 0;margin:0 0 26px}

/* ============ Post content (markdown) ============ */
.post-content{font-size:15.5px;line-height:1.78;color:#1f2937}
.post-content > * + *{margin-top:1.05em}
.post-content h2{font-size:24px;font-weight:700;line-height:1.3;color:#0f172a;margin:48px 0 16px;padding-bottom:8px;border-bottom:1px solid var(--c-border-light);scroll-margin-top:80px;letter-spacing:-.01em;display:flex;align-items:baseline;gap:10px}
.post-content h2::before{content:'#';color:var(--c-accent);font-weight:700;opacity:.5;font-size:18px}
.post-content h3{font-size:19px;font-weight:600;color:#0f172a;margin:32px 0 12px;scroll-margin-top:80px}
.post-content h4{font-size:16px;font-weight:600;color:#0f172a;margin:24px 0 10px}
.post-content p{margin:0 0 1em}
.post-content a{color:var(--c-accent);text-decoration:underline;text-underline-offset:2px;text-decoration-thickness:1px;text-decoration-color:rgba(79,70,229,.4)}
.post-content a:hover{text-decoration-color:var(--c-accent);color:#4338ca}
.post-content strong{color:#0f172a;font-weight:600}
.post-content ul,.post-content ol{padding-left:24px;margin:1em 0}
.post-content ul li,.post-content ol li{margin:.4em 0}
.post-content ul{list-style:none;padding-left:0}
.post-content ul > li{position:relative;padding-left:22px}
.post-content ul > li::before{content:'';position:absolute;left:6px;top:.7em;width:6px;height:6px;background:var(--c-accent);border-radius:50%}
.post-content ol{counter-reset:olc}
.post-content ol > li{counter-increment:olc;position:relative;padding-left:32px;list-style:none}
.post-content ol > li::before{content:counter(olc);position:absolute;left:0;top:.1em;width:22px;height:22px;background:var(--c-accent-soft);color:var(--c-accent);font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;border-radius:50%}
.post-content blockquote{margin:1.5em 0;padding:14px 18px;border-left:3px solid var(--c-pink);background:#fdf2f8;border-radius:0 8px 8px 0;color:#4b5563;font-style:italic}
.post-content blockquote p{margin:0}
.post-content table{display:block;width:100%;overflow-x:auto;border-collapse:collapse;font-size:14px;margin:1.5em 0;border:1px solid var(--c-border);border-radius:8px}
.post-content table th{background:#fafafa;color:#0f172a;font-weight:600;text-align:left;padding:10px 14px;border-bottom:1px solid var(--c-border)}
.post-content table td{padding:10px 14px;border-top:1px solid var(--c-border-light)}
.post-content table tr:hover td{background:#fafafa}
.post-content code{background:var(--c-bg-code-inline);color:#be185d;padding:2px 6px;border-radius:4px;font-size:.9em;font-family:ui-monospace,"SF Mono",Menlo,Consolas,monospace}
.post-content pre{position:relative;background:var(--c-bg-code);color:#e0e7ff;padding:16px 18px;border-radius:10px;overflow-x:auto;font-size:13px;line-height:1.65;margin:1.4em 0;border:1px solid #1e1b4b}
.post-content pre code{background:none;color:inherit;padding:0;font-size:inherit;border-radius:0}
.copy-btn{position:absolute;top:8px;right:8px;background:rgba(255,255,255,.08);color:#cbd5e1;border:1px solid rgba(255,255,255,.12);padding:3px 9px;font-size:11px;border-radius:4px;cursor:pointer;transition:all .15s}
.copy-btn:hover{background:rgba(255,255,255,.15);color:#fff}
.post-content hr{border:none;border-top:1px solid var(--c-border);margin:2em 0}

/* ============ Right TOC ============ */
.docs-toc{position:sticky;top:80px;align-self:flex-start;max-height:calc(100vh - 100px);overflow-y:auto;padding:8px 0}
.docs-toc-inner{padding-left:20px;border-left:1px solid var(--c-border-light)}
.toc-title{font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:#374151;margin:0 0 10px}
.toc-list{list-style:none}
.toc-item{margin:0}
.toc-item--h3{padding-left:14px}
.toc-link{display:block;padding:4px 0;font-size:12.5px;color:var(--c-text-muted);text-decoration:none;line-height:1.45;border-left:2px solid transparent;margin-left:-22px;padding-left:20px;transition:all .15s}
.toc-link:hover{color:var(--c-text)}
.toc-link.active{color:var(--c-accent);border-left-color:var(--c-accent);font-weight:500}

/* ============ Prev / Next ============ */
.prev-next{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:48px;border-top:1px solid var(--c-border-light);padding-top:28px}
.pn-link{padding:14px 18px;border:1px solid var(--c-border);border-radius:10px;text-decoration:none;display:flex;flex-direction:column;gap:4px;background:#fff;transition:all .15s}
.pn-link:hover{border-color:var(--c-accent);background:var(--c-accent-soft);transform:translateY(-1px)}
.pn-prev{align-items:flex-start;text-align:left}
.pn-next{align-items:flex-end;text-align:right}
.pn-label{font-size:11px;color:var(--c-accent);font-weight:600;letter-spacing:.06em;text-transform:uppercase}
.pn-title{font-size:14px;color:var(--c-text);font-weight:500;line-height:1.4}

/* ============ Related ============ */
.related{margin-top:42px}
.related-h{font-size:18px;font-weight:600;margin:0 0 14px;color:#0f172a}
.related-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.related-item{display:block;padding:12px 14px;background:#fafafa;border:1px solid var(--c-border-light);border-radius:8px;text-decoration:none;transition:all .15s}
.related-item:hover{background:#fff;border-color:var(--c-accent);transform:translateY(-1px);box-shadow:var(--shadow-sm)}
.related-t{display:block;font-size:13.5px;color:var(--c-text);font-weight:500;line-height:1.45;margin-bottom:4px}
.related-d{font-size:11.5px;color:var(--c-text-muted)}

/* ============ Hero (home) ============ */
body.is-home .docs-shell{display:block;max-width:none;min-height:0}
.hero-doc{padding:64px 22px 48px;max-width:920px;margin:0 auto;text-align:center}
.hero-eyebrow{display:inline-block;background:linear-gradient(90deg,#eef2ff,#fce7f3);color:#4f46e5;padding:5px 14px;border-radius:30px;font-size:12px;font-weight:600;letter-spacing:.05em;text-transform:uppercase;margin:0 0 18px}
.hero-title{font-size:44px;line-height:1.15;font-weight:800;letter-spacing:-.025em;margin:0 0 16px;color:#0f172a;background:linear-gradient(120deg,#0f172a 30%,#4f46e5 70%,#ec4899);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero-desc{font-size:17px;line-height:1.7;color:var(--c-text-muted);max-width:660px;margin:0 auto 32px}
.hero-search{display:flex;align-items:center;background:#fff;border:1px solid var(--c-border);border-radius:12px;padding:6px 8px 6px 16px;max-width:560px;margin:0 auto;box-shadow:var(--shadow-md);transition:all .2s}
.hero-search:focus-within{border-color:var(--c-accent);box-shadow:0 0 0 4px rgba(79,70,229,.12)}
.hero-search-icon{color:var(--c-text-muted);display:inline-flex}
.hero-search input{flex:1;height:42px;border:none;outline:none;font-size:15px;background:transparent;padding:0 12px}
.hero-search-key{font-size:12px;color:var(--c-text-muted);background:var(--c-border-light);border:1px solid var(--c-border);padding:4px 9px;border-radius:6px;flex-shrink:0}
.hero-meta{display:flex;justify-content:center;gap:24px;margin-top:28px;flex-wrap:wrap}
.hero-meta-item{font-size:13px;color:var(--c-text-muted);font-weight:500}

/* ============ Home category cards ============ */
.cards-section{padding:32px 22px 48px;max-width:1180px;margin:0 auto}
.section-head{display:flex;justify-content:space-between;align-items:flex-end;margin:0 0 24px;flex-wrap:wrap;gap:12px}
.section-title{font-size:24px;font-weight:700;letter-spacing:-.01em;color:#0f172a;margin:0}
.section-sub{font-size:14px;color:var(--c-text-muted);margin:6px 0 0}
.section-link{font-size:13px;color:var(--c-accent);text-decoration:none;font-weight:600}
.section-link:hover{text-decoration:underline}
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.cat-card{display:block;padding:20px;background:#fff;border:1px solid var(--c-border);border-radius:14px;text-decoration:none;color:inherit;transition:all .2s;position:relative;overflow:hidden}
.cat-card::before{content:'';position:absolute;left:0;top:0;width:3px;height:0;background:linear-gradient(180deg,var(--c-accent),var(--c-pink));transition:height .25s}
.cat-card:hover{border-color:var(--c-accent);box-shadow:var(--shadow-md);transform:translateY(-2px)}
.cat-card:hover::before{height:100%}
.cat-card-icon{width:38px;height:38px;border-radius:10px;background:var(--c-accent-soft);color:var(--c-accent);display:flex;align-items:center;justify-content:center;margin-bottom:14px}
.cat-card--c2 .cat-card-icon{background:#fce7f3;color:#db2777}
.cat-card--c3 .cat-card-icon{background:#dcfce7;color:#16a34a}
.cat-card--c4 .cat-card-icon{background:#fef3c7;color:#d97706}
.cat-card--c5 .cat-card-icon{background:#dbeafe;color:#2563eb}
.cat-card--c6 .cat-card-icon{background:#ede9fe;color:#7c3aed}
.cat-card--c7 .cat-card-icon{background:#fee2e2;color:#dc2626}
.cat-card--c8 .cat-card-icon{background:#cffafe;color:#0891b2}
.cat-card-title{font-size:16px;font-weight:600;color:#0f172a;margin:0 0 6px}
.cat-card-desc{font-size:13px;color:var(--c-text-muted);line-height:1.55;margin:0 0 12px}
.cat-card-count{font-size:12px;color:var(--c-accent);font-weight:600;letter-spacing:.02em}

/* ============ Latest list ============ */
.latest-section{padding:32px 22px 48px;max-width:1180px;margin:0 auto}
.latest-list{display:flex;flex-direction:column;border:1px solid var(--c-border-light);border-radius:14px;overflow:hidden;background:#fff}
.latest-item{display:flex;align-items:center;gap:18px;padding:16px 20px;text-decoration:none;color:inherit;border-bottom:1px solid var(--c-border-light);transition:background .15s}
.latest-item:last-child{border-bottom:none}
.latest-item:hover{background:#fafafa}
.latest-item:hover .latest-arrow{color:var(--c-accent);transform:translateX(2px)}
.latest-num{width:34px;height:34px;flex-shrink:0;background:linear-gradient(135deg,#eef2ff,#fce7f3);color:var(--c-accent);font-size:12px;font-weight:700;border-radius:8px;display:flex;align-items:center;justify-content:center;font-family:ui-monospace,monospace}
.latest-body{flex:1;min-width:0}
.latest-title{font-size:15px;color:#0f172a;font-weight:500;line-height:1.45;margin:0 0 5px}
.latest-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12px;color:var(--c-text-muted)}
.latest-tag{background:var(--c-border-light);color:#374151;padding:2px 7px;border-radius:30px;font-weight:500}
.latest-arrow{color:var(--c-text-muted);font-size:18px;flex-shrink:0;transition:all .2s}

/* ============ FAQ ============ */
.faq-section{padding:32px 22px 56px;max-width:920px;margin:0 auto}
.faq-list{display:flex;flex-direction:column;gap:8px}
.faq-i{border:1px solid var(--c-border-light);border-radius:10px;background:#fff;overflow:hidden;transition:all .15s}
.faq-i.open{border-color:var(--c-accent);box-shadow:var(--shadow-sm)}
.faq-q{width:100%;display:flex;justify-content:space-between;align-items:center;padding:14px 18px;font-size:14.5px;font-weight:500;color:#0f172a;text-align:left}
.faq-chev{transition:transform .2s;color:var(--c-text-muted)}
.faq-i.open .faq-chev{transform:rotate(180deg);color:var(--c-accent)}
.faq-a{display:none;padding:0 18px 16px;font-size:14px;color:var(--c-text-muted);line-height:1.7}
.faq-i.open .faq-a{display:block}

/* ============ CTA section ============ */
.cta-section{padding:48px 22px;max-width:1180px;margin:0 auto 56px}
.cta-inner{background:linear-gradient(135deg,#4f46e5 0%,#7c3aed 50%,#ec4899 100%);border-radius:18px;padding:42px 36px;text-align:center;color:#fff;position:relative;overflow:hidden}
.cta-inner::before{content:'';position:absolute;inset:0;background:radial-gradient(circle at 30% 30%,rgba(255,255,255,.18),transparent 50%);pointer-events:none}
.cta-title{font-size:26px;font-weight:700;margin:0 0 10px;color:#fff}
.cta-desc{font-size:15px;color:rgba(255,255,255,.88);margin:0 0 22px}
.cta-btns{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;position:relative;z-index:1}
.cta-btn{padding:11px 24px;border-radius:8px;font-size:14px;font-weight:600;text-decoration:none;transition:all .15s;cursor:pointer;display:inline-flex;align-items:center;gap:6px}
.cta-btn--primary{background:#fff;color:#4f46e5}
.cta-btn--primary:hover{background:#f9fafb;color:#4338ca;transform:translateY(-1px)}
.cta-btn--ghost{background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.3)}
.cta-btn--ghost:hover{background:rgba(255,255,255,.2);color:#fff}

/* ============ KB list page ============ */
.filter-row{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0 28px}
.filter-pill{padding:6px 14px;border-radius:30px;background:#fafafa;border:1px solid var(--c-border-light);font-size:13px;color:var(--c-text);text-decoration:none;font-weight:500;transition:all .15s}
.filter-pill:hover{border-color:var(--c-accent);color:var(--c-accent)}
.filter-pill--active{background:linear-gradient(135deg,#4f46e5,#7c3aed);color:#fff;border-color:transparent}
.filter-pill--active:hover{color:#fff;background:linear-gradient(135deg,#4338ca,#6d28d9)}
.kb-list{display:flex;flex-direction:column;gap:0;border:1px solid var(--c-border-light);border-radius:12px;overflow:hidden;background:#fff}
.kb-row{display:flex;align-items:center;gap:18px;padding:16px 20px;text-decoration:none;color:inherit;border-bottom:1px solid var(--c-border-light);transition:background .15s}
.kb-row:last-child{border-bottom:none}
.kb-row:hover{background:#fafafa}
.kb-row:hover .kb-row-arrow{color:var(--c-accent);transform:translateX(2px)}
.kb-row-num{width:46px;flex-shrink:0;font-size:12px;color:var(--c-text-muted);font-family:ui-monospace,monospace;font-weight:600}
.kb-row-body{flex:1;min-width:0}
.kb-row-title{font-size:15.5px;color:#0f172a;font-weight:500;line-height:1.45;margin:0 0 5px}
.kb-row-desc{font-size:13px;color:var(--c-text-muted);line-height:1.5;margin:0 0 6px}
.kb-row-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12px;color:var(--c-text-muted)}
.kb-row-tag{background:var(--c-accent-soft);color:var(--c-accent);padding:2px 7px;border-radius:30px;font-weight:500}
.kb-row-arrow{color:var(--c-text-muted);font-size:18px;flex-shrink:0;transition:all .2s}

/* ============ Pagination ============ */
.pager{display:flex;justify-content:center;align-items:center;gap:6px;margin-top:36px;flex-wrap:wrap}
.pager-prev,.pager-next{padding:7px 14px;border:1px solid var(--c-border);border-radius:8px;color:var(--c-text);font-size:13px;text-decoration:none;font-weight:500;background:#fff}
.pager-prev:hover,.pager-next:hover{border-color:var(--c-accent);color:var(--c-accent)}
.pager-num{min-width:34px;height:34px;display:inline-flex;align-items:center;justify-content:center;border-radius:8px;font-size:13px;color:var(--c-text);text-decoration:none;border:1px solid transparent;font-weight:500}
.pager-num:hover{background:var(--c-border-light)}
.pager-num--active{background:linear-gradient(135deg,#4f46e5,#7c3aed);color:#fff;font-weight:600}
.pager-dots{padding:0 6px;color:var(--c-text-muted)}

/* ============ Empty state ============ */
.empty-state{padding:60px 20px;text-align:center;color:var(--c-text-muted);font-size:14px;background:#fafafa;border-radius:10px;border:1px dashed var(--c-border)}
.err-wrap{text-align:center;padding:80px 20px}
.err-code{font-size:96px;font-weight:800;letter-spacing:-.04em;background:linear-gradient(135deg,#4f46e5,#ec4899);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;line-height:1;margin:0 0 12px}

/* ============ Footer ============ */
.docs-footer{border-top:1px solid var(--c-border-light);background:#fafafa;padding:48px 22px 28px;margin-top:auto}
.docs-footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:36px;max-width:1180px;margin:0 auto}
.docs-footer-col--brand{max-width:340px}
.brand--footer{font-size:16px;margin-bottom:10px}
.footer-desc{font-size:13px;color:var(--c-text-muted);line-height:1.65;margin:0}
.footer-h{font-size:13px;font-weight:600;letter-spacing:.04em;color:#0f172a;margin:0 0 12px;text-transform:uppercase}
.docs-footer ul{list-style:none}
.docs-footer ul li{margin:6px 0}
.docs-footer ul a{font-size:13.5px;color:var(--c-text-muted);text-decoration:none}
.docs-footer ul a:hover{color:var(--c-accent)}
.docs-footer ul a.active{color:var(--c-accent);font-weight:600}
.docs-footer-bottom{max-width:1180px;margin:32px auto 0;padding-top:20px;border-top:1px solid var(--c-border-light);display:flex;flex-direction:column;gap:8px;align-items:center;text-align:center}
.risk-note{font-size:12px;color:var(--c-text-muted);margin:0;line-height:1.6;max-width:780px}
.copyright{font-size:12px;color:var(--c-text-muted);margin:0}

/* ============ Download / Static pages ============ */
.dl-hero{padding:48px 22px 24px;text-align:center}
.dl-hero h1{font-size:36px;font-weight:800;letter-spacing:-.02em;color:#0f172a;margin:0 0 12px;background:linear-gradient(120deg,#0f172a 30%,#4f46e5 70%,#ec4899);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.dl-hero p{font-size:16px;color:var(--c-text-muted);max-width:660px;margin:0 auto;line-height:1.7}
.dl-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;padding:0 22px;max-width:1100px;margin:32px auto 24px}
.dl-card{background:#fff;border:1px solid var(--c-border);border-radius:14px;padding:24px;display:flex;flex-direction:column;align-items:flex-start;transition:all .2s}
.dl-card:hover{border-color:var(--c-accent);box-shadow:var(--shadow-md);transform:translateY(-2px)}
.dl-card-icon{width:46px;height:46px;border-radius:12px;background:var(--c-accent-soft);color:var(--c-accent);display:flex;align-items:center;justify-content:center;margin-bottom:14px}
.dl-card--ios .dl-card-icon{background:#f3f4f6;color:#0f172a}
.dl-card--web .dl-card-icon{background:#cffafe;color:#0891b2}
.dl-card-title{font-size:18px;font-weight:600;color:#0f172a;margin:0 0 4px}
.dl-card-sub{font-size:13px;color:var(--c-text-muted);margin:0 0 14px}
.dl-card ul{font-size:13.5px;color:#374151;line-height:1.7;margin:0 0 18px;padding-left:0;list-style:none;width:100%}
.dl-card ul li{padding-left:18px;position:relative;margin:4px 0}
.dl-card ul li::before{content:'✓';position:absolute;left:0;top:0;color:var(--c-accent);font-weight:700}
.dl-btn{margin-top:auto;width:100%;text-align:center;padding:10px 16px;border-radius:8px;background:linear-gradient(135deg,#4f46e5,#7c3aed);color:#fff!important;font-size:14px;font-weight:600;text-decoration:none;display:inline-block}
.dl-btn:hover{background:linear-gradient(135deg,#4338ca,#6d28d9);color:#fff!important}
.dl-btn--ghost{background:#fff;color:var(--c-accent)!important;border:1px solid var(--c-accent)}
.dl-btn--ghost:hover{background:var(--c-accent-soft);color:var(--c-accent)!important}

.dl-step-block{max-width:1100px;margin:0 auto;padding:24px 22px}
.dl-step-card{background:#fff;border:1px solid var(--c-border);border-radius:14px;padding:28px}
.dl-step-card h2{font-size:22px;font-weight:700;color:#0f172a;margin:0 0 18px;padding-bottom:10px;border-bottom:1px solid var(--c-border-light);display:flex;align-items:center;gap:10px}
.dl-step{display:flex;gap:14px;margin:14px 0;padding:14px;background:#fafafa;border-radius:10px;border-left:3px solid var(--c-accent)}
.dl-step-num{width:30px;height:30px;flex-shrink:0;background:linear-gradient(135deg,#4f46e5,#7c3aed);color:#fff;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700}
.dl-step strong{display:block;color:#0f172a;font-weight:600;margin-bottom:4px}
.dl-step p{margin:0;color:var(--c-text-muted);font-size:13.5px;line-height:1.6}
.dl-tip{background:#fef3c7;border:1px solid #fcd34d;border-radius:8px;padding:12px 14px;font-size:13px;color:#78350f;line-height:1.6;margin:18px 0}
.dl-tip strong{color:#78350f;font-weight:600}
.dl-warn{background:#fef2f2;border:1px solid #fca5a5;border-radius:8px;padding:12px 14px;font-size:13px;color:#7f1d1d;line-height:1.6;margin:18px 0}
.dl-warn strong{color:#7f1d1d;font-weight:600}
.dl-info{background:var(--c-accent-soft);border:1px solid #c7d2fe;border-radius:8px;padding:12px 14px;font-size:13px;color:#3730a3;line-height:1.6;margin:18px 0}
.dl-info strong{color:#3730a3;font-weight:600}
.dl-answer{font-size:14.5px;color:#0f172a;line-height:1.7;margin:0 0 16px;padding:14px 16px;background:linear-gradient(90deg,#fafafa,#f9fafb);border-left:3px solid var(--c-accent);border-radius:0 8px 8px 0}
.dl-answer strong{color:#0f172a;font-weight:600}
.dl-table-wrap{overflow-x:auto;margin:16px 0}
.dl-table{width:100%;border-collapse:collapse;font-size:13.5px;border:1px solid var(--c-border);border-radius:8px;overflow:hidden}
.dl-table th{background:#f5f3ff;color:#0f172a;font-weight:600;text-align:left;padding:10px 14px;border-bottom:1px solid var(--c-border);font-size:13px}
.dl-table td{padding:10px 14px;border-top:1px solid var(--c-border-light);color:#374151;line-height:1.6}
.dl-table tr:hover td{background:#fafafa}
.dl-table .ok{color:#16a34a;font-weight:600}
.dl-table .warn{color:#d97706;font-weight:600}
.dl-table .err{color:#dc2626;font-weight:600}
.dl-step-card p{margin:0 0 .8em;font-size:14.5px;color:#374151;line-height:1.7}
.dl-step-card ul{margin:0 0 1em;padding-left:0;list-style:none}
.dl-step-card ul li{position:relative;padding-left:22px;margin:.4em 0;font-size:14px;color:#374151;line-height:1.6}
.dl-step-card ul li::before{content:'';position:absolute;left:6px;top:.7em;width:6px;height:6px;background:var(--c-accent);border-radius:50%}
.dl-step-card h3{font-size:17px;font-weight:600;color:#0f172a;margin:24px 0 10px;padding-bottom:6px;border-bottom:1px solid var(--c-border-light)}
.dl-step-card code{background:#f3f4f6;color:#be185d;padding:2px 6px;border-radius:4px;font-size:.88em;font-family:ui-monospace,Menlo,Consolas,monospace}

/* ============ Responsive ============ */
@media (max-width:1080px){
  .docs-main-grid{grid-template-columns:1fr;gap:0}
  .docs-toc{display:none}
  .cat-grid{grid-template-columns:repeat(2,1fr)}
  .dl-cards{grid-template-columns:1fr}
  .docs-footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .topbar-search{max-width:none;margin:0;flex:1}
  .topbar-search input{height:32px;padding-left:34px;font-size:13px}
  .topbar-search::before{left:10px}
  .search-key{display:none}
  .topbar-nav{display:none}
  .mobile-menu-btn{display:inline-flex}
  .lang-current{display:none}
  .lang-toggle{padding:6px 7px}
  .docs-sidebar{position:fixed;left:-280px;top:56px;width:280px;height:calc(100vh - 56px);background:#fff;z-index:40;border-right:1px solid var(--c-border);transition:left .25s;box-shadow:0 8px 24px rgba(0,0,0,.08)}
  .docs-sidebar.open{left:0}
  .mobile-overlay{display:none;position:fixed;inset:56px 0 0 0;background:rgba(15,23,42,.5);z-index:35}
  .mobile-overlay.open{display:block}
  .docs-main{padding:0}
  .docs-main-grid{padding:24px 18px 60px}
  .post-title{font-size:28px}
  .hero-title{font-size:32px}
  .hero-doc{padding:40px 18px 32px}
  .related-grid{grid-template-columns:1fr}
  .prev-next{grid-template-columns:1fr}
  .cat-grid{grid-template-columns:1fr}
  .docs-footer-grid{grid-template-columns:1fr}
  .kb-row-num{display:none}
  .kb-row{padding:14px 16px}
  .latest-num{width:28px;height:28px;font-size:11px}
}