/* =============================================
   钛币 — Zendesk-faithful design
   Dark teal: #03363D   CTA green: #43B02A
   Header: #1B1B1B      Footer: #03363D
   ============================================= */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans SC",sans-serif;color:#2F3941;background:#fff;line-height:1.7;overflow-x:hidden}
body.nav-open{overflow:hidden}
a{color:#03363D;text-decoration:none;transition:color .2s}
a:hover{color:#43B02A}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
h1,h2,h3,h4{line-height:1.3;color:#2F3941}
.zk-wrap{max-width:1140px;margin:0 auto;padding:0 24px}

/* ============ Header (Zendesk: black bar) ============ */
.zk-header{position:sticky;top:0;z-index:100;background:#1B1B1B}
.zk-header-inner{display:flex;align-items:center;height:60px;max-width:1140px;margin:0 auto;padding:0 24px;gap:32px}
.zk-logo{display:flex;align-items:center;gap:8px;color:#fff;font-size:1.05rem;font-weight:700;white-space:nowrap;margin-right:auto}
.zk-logo img{border-radius:6px;width:28px;height:28px}
.zk-nav{display:flex;gap:4px}
.zk-nav a{color:rgba(255,255,255,.75);font-size:.875rem;padding:8px 14px;border-radius:999px;transition:all .2s;font-weight:500}
.zk-nav a:hover{color:#fff;background:rgba(255,255,255,.08)}
.zk-nav a.active{color:#fff}
.zk-header-actions{display:flex;align-items:center;gap:10px}

/* Language dropdown */
.zk-lang-switch{position:relative}
.zk-lang-btn{display:flex;align-items:center;gap:5px;background:none;border:none;color:rgba(255,255,255,.7);padding:6px 10px;border-radius:999px;cursor:pointer;font-size:.82rem;transition:all .2s}
.zk-lang-btn:hover{color:#fff;background:rgba(255,255,255,.08)}
.zk-lang-btn svg{opacity:.65;width:15px;height:15px}
.zk-lang-dropdown{display:none;position:absolute;top:calc(100% + 6px);right:0;background:#fff;border:1px solid #D8DCDE;border-radius:12px;min-width:150px;padding:6px 0;box-shadow:0 10px 30px rgba(0,0,0,.12);z-index:200}
.zk-lang-dropdown.show{display:block}
.zk-lang-dropdown a{display:block;padding:9px 18px;color:#2F3941;font-size:.85rem;transition:background .15s}
.zk-lang-dropdown a:hover{background:#F8F9F9}
.zk-lang-dropdown a.active{color:#43B02A;font-weight:600}

/* Header text link (login-style) */
.zk-header-link{color:rgba(255,255,255,.75);font-size:.875rem;font-weight:500;padding:8px 12px;transition:color .2s}
.zk-header-link:hover{color:#fff}

/* Header CTA (Zendesk green pill) */
.zk-btn-header{display:inline-flex;padding:8px 20px;background:#43B02A;color:#fff;border-radius:999px;font-size:.85rem;font-weight:600;transition:all .2s;white-space:nowrap}
.zk-btn-header:hover{background:#3A9A24;color:#fff;transform:translateY(-1px)}
.zk-mob-btn{display:none;background:none;border:none;color:#fff;cursor:pointer;padding:4px}

/* ============ Mobile Menu ============ */
.zk-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:150;backdrop-filter:blur(2px)}
.zk-overlay.open{display:block}
.zk-mob-menu{position:fixed;top:0;right:-300px;width:280px;height:100%;background:#fff;z-index:200;transition:right .3s ease;overflow-y:auto;padding:0}
.zk-mob-menu.open{right:0}
.zk-mob-head{display:flex;align-items:center;gap:10px;padding:16px 20px;border-bottom:1px solid #D8DCDE;font-weight:700;color:#2F3941}
.zk-mob-head img{border-radius:6px}
.zk-mob-head button{margin-left:auto;background:none;border:none;color:#68737D;cursor:pointer;padding:4px}
.zk-mob-nav{display:flex;flex-direction:column;padding:8px 12px}
.zk-mob-nav a{color:#2F3941;padding:12px 12px;border-radius:8px;font-size:.95rem;font-weight:500}
.zk-mob-nav a:hover{background:#F8F9F9}
.zk-mob-cats-title{color:#68737D;font-size:.72rem;text-transform:uppercase;letter-spacing:1.2px;padding:16px 12px 6px;margin-top:4px;border-top:1px solid #F0F0F0;font-weight:600}
.zk-mob-cats a{display:block;color:#68737D;padding:8px 12px;font-size:.88rem;border-radius:8px}
.zk-mob-cats a:hover{background:#F8F9F9;color:#2F3941}

/* ============ Buttons (Zendesk style) ============ */
.zk-btn-primary{display:inline-flex;align-items:center;justify-content:center;padding:14px 32px;background:#43B02A;color:#fff;border-radius:999px;font-size:.95rem;font-weight:600;transition:all .25s;border:none;cursor:pointer;letter-spacing:.01em}
.zk-btn-primary:hover{background:#3A9A24;color:#fff;transform:translateY(-1px);box-shadow:0 4px 14px rgba(67,176,42,.3)}
.zk-btn-secondary{display:inline-flex;align-items:center;justify-content:center;padding:14px 32px;background:#fff;color:#2F3941;border:1.5px solid #D8DCDE;border-radius:999px;font-size:.95rem;font-weight:600;transition:all .25s;cursor:pointer}
.zk-btn-secondary:hover{border-color:#2F3941;color:#2F3941;background:#F8F9F9}
.zk-btn-outline-light{display:inline-flex;align-items:center;justify-content:center;padding:14px 32px;background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.5);border-radius:999px;font-size:.95rem;font-weight:600;transition:all .25s;cursor:pointer}
.zk-btn-outline-light:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,.08)}
.zk-btn-text{color:#03363D;font-weight:600;font-size:.9rem;display:inline-flex;align-items:center;gap:6px;transition:all .2s}
.zk-btn-text:hover{color:#43B02A;gap:10px}
.zk-btn-text svg{width:16px;height:16px;transition:transform .2s}

/* ============ Hero (Zendesk: dark gradient) ============ */
.zk-hero{background:linear-gradient(160deg,#03363D 0%,#012B30 40%,#1B3A2A 100%);padding:80px 0 60px;position:relative;overflow:hidden}
.zk-hero::before{content:'';position:absolute;top:-40%;right:-20%;width:70%;height:180%;background:radial-gradient(circle,rgba(67,176,42,.08) 0%,transparent 65%);pointer-events:none}
.zk-hero-content{position:relative;z-index:1;max-width:680px}
.zk-hero h1{color:#fff;font-size:2.8rem;font-weight:800;margin-bottom:18px;letter-spacing:-.03em;line-height:1.15}
.zk-hero-desc{color:rgba(255,255,255,.65);font-size:1.05rem;line-height:1.75;margin-bottom:36px;max-width:560px}
.zk-hero-btns{display:flex;gap:14px;flex-wrap:wrap}

/* ============ Trust / Logo bar (Zendesk: client logos) ============ */
.zk-trust-bar{background:#F8F9F9;border-top:1px solid #E9EBED;border-bottom:1px solid #E9EBED;padding:20px 0}
.zk-trust-inner{display:flex;align-items:center;justify-content:center;gap:40px;flex-wrap:wrap}
.zk-trust-item{text-align:center}
.zk-trust-num{display:block;font-size:1.5rem;font-weight:800;color:#03363D}
.zk-trust-label{font-size:.78rem;color:#68737D;font-weight:500}

/* ============ Featured Card (Zendesk: event banner) ============ */
.zk-featured{padding:56px 0}
.zk-featured-card{background:#03363D;border-radius:16px;overflow:hidden;display:grid;grid-template-columns:1fr 1fr;min-height:280px}
.zk-featured-text{padding:40px 44px;display:flex;flex-direction:column;justify-content:center}
.zk-featured-label{display:inline-block;background:rgba(67,176,42,.2);color:#43B02A;font-size:.75rem;font-weight:700;padding:4px 12px;border-radius:999px;margin-bottom:16px;width:fit-content;letter-spacing:.5px}
.zk-featured-text h2{color:#fff;font-size:1.5rem;font-weight:700;margin-bottom:10px;line-height:1.3}
.zk-featured-text p{color:rgba(255,255,255,.6);font-size:.9rem;line-height:1.65;margin-bottom:20px}
.zk-featured-img{background:#012B30;overflow:hidden;display:flex;align-items:center;justify-content:center}
.zk-featured-img img{width:100%;height:100%;object-fit:cover;opacity:.85;transition:opacity .3s}
.zk-featured-card:hover .zk-featured-img img{opacity:1}

/* ============ Badges / Awards (Zendesk: Top 50 shields) ============ */
.zk-badges{padding:56px 0;text-align:center}
.zk-badges h2{font-size:1.3rem;font-weight:700;margin-bottom:32px;color:#2F3941}
.zk-badge-row{display:flex;justify-content:center;gap:32px;flex-wrap:wrap}
.zk-badge{display:flex;flex-direction:column;align-items:center;gap:8px;padding:20px 28px;background:#fff;border:1px solid #E9EBED;border-radius:12px;min-width:140px}
.zk-badge-icon{width:56px;height:56px;background:linear-gradient(135deg,#C4A35A,#AD8B3A);border-radius:10px;display:flex;align-items:center;justify-content:center;color:#fff}
.zk-badge-icon svg{stroke:#fff;width:26px;height:26px}
.zk-badge span{font-size:.82rem;color:#68737D;font-weight:500}

/* ============ Two-column Feature Sections (Zendesk style) ============ */
.zk-feature-section{padding:64px 0;border-top:1px solid #E9EBED}
.zk-feature-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.zk-feature-row.reverse{direction:rtl}
.zk-feature-row.reverse > *{direction:ltr}
.zk-feature-text h2{font-size:1.6rem;font-weight:700;margin-bottom:14px;line-height:1.3}
.zk-feature-text p{color:#68737D;font-size:.95rem;line-height:1.7;margin-bottom:20px}
.zk-feature-visual{background:#F8F9F9;border-radius:16px;aspect-ratio:4/3;display:flex;align-items:center;justify-content:center;border:1px solid #E9EBED;overflow:hidden}
.zk-feature-visual img{width:100%;height:100%;object-fit:cover;border-radius:16px;transition:transform .4s}
.zk-feature-visual:hover img{transform:scale(1.03)}

/* ============ Resources / Latest Posts (Zendesk: card grid) ============ */
.zk-resources{padding:56px 0;border-top:1px solid #E9EBED}
.zk-resources-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:28px}
.zk-resources-head h2{font-size:1.3rem;font-weight:700}
.zk-post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.zk-post-card{background:#fff;border:1px solid #E9EBED;border-radius:12px;padding:0;overflow:hidden;transition:all .3s}
.zk-post-card:hover{box-shadow:0 8px 24px rgba(0,0,0,.08);transform:translateY(-3px)}
.zk-post-card-body{padding:22px 24px}
.zk-post-tags{margin-bottom:10px}
.zk-post-tags a{display:inline-block;background:#F0F7ED;color:#2D7F0E;font-size:.72rem;padding:3px 10px;border-radius:999px;margin-right:5px;font-weight:600;letter-spacing:.02em}
.zk-post-tags a:hover{background:#DBF0D3}
.zk-post-card h3{font-size:.95rem;font-weight:600;margin-bottom:8px;line-height:1.5}
.zk-post-card h3 a{color:#2F3941}
.zk-post-card h3 a:hover{color:#43B02A}
.zk-post-card-body > p{color:#68737D;font-size:.84rem;line-height:1.6;margin-bottom:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.zk-post-meta{display:flex;gap:12px;font-size:.76rem;color:#87929D}

/* ============ Dark CTA Banner (Zendesk: green-dark gradient) ============ */
.zk-cta-banner{background:linear-gradient(135deg,#03363D 0%,#012B30 50%,#1B3A2A 100%);padding:64px 0;text-align:center;position:relative;overflow:hidden}
.zk-cta-banner::before{content:'';position:absolute;top:0;right:0;width:50%;height:100%;background:radial-gradient(circle at 80% 50%,rgba(67,176,42,.1),transparent 60%);pointer-events:none}
.zk-cta-banner h2{color:#fff;font-size:1.6rem;font-weight:700;margin-bottom:12px;position:relative}
.zk-cta-banner p{color:rgba(255,255,255,.55);margin-bottom:30px;font-size:.95rem;position:relative}
.zk-cta-btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;position:relative}

/* ============ Stats Section (Zendesk: ROI numbers) ============ */
.zk-stats-section{padding:64px 0;background:#fff;border-top:1px solid #E9EBED}
.zk-stats-section h2{font-size:1.3rem;font-weight:700;text-align:center;margin-bottom:40px;color:#2F3941}
.zk-stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px}
.zk-stat-card{text-align:center;padding:20px}
.zk-stat-card .num{display:block;font-size:2.4rem;font-weight:800;color:#03363D;margin-bottom:6px;letter-spacing:-.02em}
.zk-stat-card .label{font-size:.85rem;color:#68737D;font-weight:500}

/* ============ FAQ (Zendesk: clean accordion) ============ */
.zk-faq{padding:56px 0;background:#F8F9F9;border-top:1px solid #E9EBED}
.zk-faq .zk-section-title{font-size:1.3rem;font-weight:700;text-align:center;margin-bottom:32px}
.zk-faq-list{max-width:720px;margin:0 auto}
.zk-faq-item{background:#fff;border:1px solid #E9EBED;border-radius:10px;margin-bottom:8px;overflow:hidden}
.zk-faq-q{display:flex;width:100%;justify-content:space-between;align-items:center;padding:18px 22px;background:none;border:none;cursor:pointer;font-size:.95rem;font-weight:600;color:#2F3941;text-align:left;line-height:1.5}
.zk-faq-q svg{flex-shrink:0;margin-left:14px;transition:transform .25s;color:#87929D;width:16px;height:16px}
.zk-faq-item.open .zk-faq-q svg{transform:rotate(180deg)}
.zk-faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease,padding .35s ease;color:#68737D;font-size:.9rem;line-height:1.7;padding:0 22px}
.zk-faq-item.open .zk-faq-a{max-height:300px;padding:0 22px 18px}

/* ============ Footer (Zendesk: dark with large brand) ============ */
.zk-footer{background:#03363D;color:rgba(255,255,255,.7);font-size:.88rem}
.zk-footer-top{padding:48px 0 40px;border-bottom:1px solid rgba(255,255,255,.1)}
.zk-footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:36px}
.zk-footer-col h4{color:rgba(255,255,255,.4);font-size:.72rem;font-weight:700;margin-bottom:16px;text-transform:uppercase;letter-spacing:1.5px}
.zk-footer-col a{display:block;color:rgba(255,255,255,.65);padding:4px 0;font-size:.84rem;transition:color .15s}
.zk-footer-col a:hover{color:#fff}
.zk-footer-col a.active{color:#43B02A}

/* Large brand name (Zendesk style) */
.zk-footer-brand-large{text-align:center;padding:48px 0 20px}
.zk-footer-brand-large .zk-brand-name{display:flex;align-items:center;justify-content:center;gap:14px;color:#fff;font-size:2.2rem;font-weight:800;letter-spacing:-.03em;opacity:.9}
.zk-footer-brand-large .zk-brand-name img{width:44px;height:44px;border-radius:10px}

/* Footer social + lang row */
.zk-footer-social{display:flex;align-items:center;justify-content:center;gap:16px;padding:20px 0;border-bottom:1px solid rgba(255,255,255,.08)}
.zk-footer-social a{color:rgba(255,255,255,.45);font-size:.82rem;transition:color .15s}
.zk-footer-social a:hover{color:#fff}

.zk-footer-risk{padding:16px 0;border-top:1px solid rgba(255,255,255,.06);font-size:.76rem;color:rgba(255,255,255,.3);line-height:1.65;text-align:center}
.zk-footer-copy{padding:14px 0;border-top:1px solid rgba(255,255,255,.06);font-size:.76rem;color:rgba(255,255,255,.25);text-align:center}

/* ============ Breadcrumb ============ */
.zk-breadcrumb{padding:18px 0;font-size:.82rem;color:#87929D;display:flex;align-items:center;flex-wrap:wrap;gap:6px}
.zk-breadcrumb a{color:#68737D}
.zk-breadcrumb a:hover{color:#43B02A}
.zk-breadcrumb span{color:#D8DCDE}
.zk-breadcrumb .current{color:#2F3941}

/* ============ Page Header ============ */
.zk-page-header{padding:12px 0 28px}
.zk-page-header h1{font-size:1.7rem;font-weight:700;margin-bottom:6px}
.zk-page-header p{color:#68737D;font-size:.92rem}

/* ============ Article List (posts / tag) ============ */
.zk-list-feed{display:flex;flex-direction:column}
.zk-list-item{padding:22px 0;border-bottom:1px solid #E9EBED}
.zk-list-item:first-child{padding-top:0}
.zk-list-item h3{font-size:1.02rem;font-weight:600;margin-bottom:6px}
.zk-list-item h3 a{color:#2F3941}
.zk-list-item h3 a:hover{color:#43B02A}
.zk-list-item > p{color:#68737D;font-size:.88rem;line-height:1.6;margin-bottom:8px}
.zk-list-meta{display:flex;gap:12px;font-size:.78rem;color:#87929D;align-items:center;flex-wrap:wrap}
.zk-list-meta a{color:#2D7F0E;background:#F0F7ED;padding:2px 9px;border-radius:999px;font-size:.73rem;font-weight:600}
.zk-list-meta a:hover{background:#DBF0D3}

/* ============ Tag Grid ============ */
.zk-tag-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;padding-bottom:48px}
.zk-tag-card{display:flex;flex-direction:column;align-items:center;text-align:center;padding:32px 20px;background:#fff;border:1px solid #E9EBED;border-radius:12px;transition:all .3s;color:#2F3941}
.zk-tag-card:hover{border-color:#43B02A;box-shadow:0 6px 20px rgba(67,176,42,.08);transform:translateY(-2px);color:#2F3941}
.zk-tag-icon{margin-bottom:12px;width:52px;height:52px;display:flex;align-items:center;justify-content:center;background:#F0F7ED;border-radius:12px;color:#2D7F0E}
.zk-tag-icon svg{stroke:#2D7F0E;width:24px;height:24px}
.zk-tag-card:hover .zk-tag-icon{background:#DBF0D3}
.zk-tag-card h3{font-size:.95rem;font-weight:600;margin-bottom:8px}
.zk-tag-card span{color:#43B02A;font-size:.82rem;font-weight:500}

/* ============ Pagination ============ */
.zk-pagination{display:flex;justify-content:center;gap:6px;padding:32px 0 48px}
.zk-pagination a,.zk-pagination span{display:inline-flex;align-items:center;justify-content:center;min-width:38px;height:38px;padding:0 12px;border-radius:8px;font-size:.88rem;border:1px solid #D8DCDE;color:#2F3941;transition:all .2s;font-weight:500}
.zk-pagination a:hover{border-color:#43B02A;color:#43B02A}
.zk-pagination .active{background:#03363D;color:#fff;border-color:#03363D}
.zk-pagination .disabled{color:#D8DCDE;border-color:#E9EBED;cursor:default}

/* ============ Article Detail ============ */
.zk-detail-layout{display:grid;grid-template-columns:1fr 280px;gap:48px;padding-bottom:56px}
.zk-article-title{font-size:1.75rem;font-weight:700;margin-bottom:14px;line-height:1.35}
.zk-article-meta{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:.82rem;color:#68737D;margin-bottom:28px;padding-bottom:18px;border-bottom:1px solid #E9EBED}
.zk-dot{color:#D8DCDE}
.zk-article-tag{color:#2D7F0E;background:#F0F7ED;padding:2px 10px;border-radius:999px;font-size:.76rem;font-weight:600}
.zk-article-tag:hover{background:#DBF0D3}

/* Article Body */
.zk-article-body{font-size:1rem;line-height:1.85;color:#2F3941}
.zk-article-body h2{font-size:1.35rem;font-weight:700;margin:40px 0 14px;padding-bottom:10px;border-bottom:2px solid #E9EBED;color:#2F3941}
.zk-article-body h3{font-size:1.1rem;font-weight:600;margin:32px 0 10px;color:#2F3941}
.zk-article-body p{margin-bottom:16px}
.zk-article-body ul,.zk-article-body ol{padding-left:24px;margin-bottom:16px}
.zk-article-body ul{list-style:disc}
.zk-article-body ol{list-style:decimal}
.zk-article-body li{margin-bottom:6px}
.zk-article-body a{color:#03363D;font-weight:500;text-decoration:underline;text-underline-offset:2px}
.zk-article-body a:hover{color:#43B02A}
.zk-article-body blockquote{border-left:4px solid #43B02A;padding:16px 22px;margin:20px 0;background:#F8F9F9;border-radius:0 8px 8px 0;color:#2F3941}
.zk-article-body code{background:#F0F0F0;padding:2px 6px;border-radius:4px;font-size:.88em;color:#2F3941}
.zk-article-body pre{background:#03363D;color:#E9EBED;padding:20px 24px;border-radius:12px;overflow-x:auto;margin:20px 0;font-size:.88rem;line-height:1.6}
.zk-article-body pre code{background:none;padding:0;color:inherit}
.zk-article-body table{width:100%;border-collapse:collapse;margin:20px 0}
.zk-article-body th,.zk-article-body td{padding:10px 14px;text-align:left;border-bottom:1px solid #E9EBED;font-size:.9rem}
.zk-article-body th{background:#F8F9F9;font-weight:600}
.zk-article-body strong{color:#2F3941;font-weight:600}

/* Article bottom CTA */
.zk-article-cta{margin-top:40px;padding:28px 32px;background:#03363D;border-radius:12px;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.zk-article-cta span{font-weight:600;color:#fff;margin-right:auto;font-size:.95rem}
.zk-article-cta .zk-btn-primary{padding:10px 24px;font-size:.88rem}
.zk-article-cta .zk-btn-secondary{padding:10px 24px;font-size:.88rem;background:transparent;color:#fff;border-color:rgba(255,255,255,.35)}
.zk-article-cta .zk-btn-secondary:hover{border-color:#fff;background:rgba(255,255,255,.08)}

/* ============ Sidebar ============ */
.zk-sidebar{display:flex;flex-direction:column;gap:18px}
.zk-widget{background:#fff;border:1px solid #E9EBED;border-radius:10px;padding:20px}
.zk-sidebar .zk-widget:first-child{position:static}
.zk-widget-title{font-size:.82rem;font-weight:700;color:#2F3941;margin-bottom:14px;padding-bottom:10px;border-bottom:1px solid #E9EBED;text-transform:uppercase;letter-spacing:.5px}
.zk-toc{display:flex;flex-direction:column;gap:2px}
.zk-toc li a{color:#68737D;font-size:.82rem;display:block;padding:5px 0;transition:color .15s;line-height:1.4}
.zk-toc li a:hover{color:#43B02A}
.zk-toc li.indent{padding-left:16px}
.zk-widget-list li{margin-bottom:4px}
.zk-widget-list li a{color:#68737D;font-size:.84rem}
.zk-widget-list li a:hover{color:#43B02A}
.zk-hot-list{counter-reset:hot}
.zk-hot-list li{counter-increment:hot;position:relative;padding-left:28px;margin-bottom:10px}
.zk-hot-list li::before{content:counter(hot);position:absolute;left:0;top:2px;width:20px;height:20px;background:#E9EBED;color:#68737D;font-size:.7rem;font-weight:700;display:flex;align-items:center;justify-content:center;border-radius:5px}
.zk-hot-list li:nth-child(-n+3)::before{background:#03363D;color:#fff}
.zk-hot-list li a{color:#68737D;font-size:.82rem;line-height:1.45}
.zk-hot-list li a:hover{color:#43B02A}
.zk-widget-cta{background:#03363D;border-color:transparent;text-align:center;padding:28px 22px;border-radius:12px}
.zk-cta-text{color:#fff;font-weight:600;margin-bottom:14px;font-size:.92rem;line-height:1.45}
.zk-widget-cta .zk-btn-primary{width:100%;justify-content:center;padding:11px 0;font-size:.85rem}

/* ============ Download Page ============ */
.zk-dl-hero{background:linear-gradient(160deg,#03363D 0%,#012B30 40%,#1B3A2A 100%);padding:52px 0 44px;text-align:center}
.zk-dl-hero h1{color:#fff;font-size:2rem;font-weight:700;margin-bottom:10px}
.zk-dl-hero-desc{color:rgba(255,255,255,.6);font-size:1rem;max-width:560px;margin:0 auto}
.zk-dl-cards-section{padding:40px 0 48px;background:#F8F9F9;border-bottom:1px solid #E9EBED}
.zk-dl-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.zk-dl-card{background:#fff;border:1px solid #E9EBED;border-radius:14px;padding:32px 28px;text-align:center;transition:all .3s}
.zk-dl-card:hover{border-color:#43B02A;box-shadow:0 8px 24px rgba(67,176,42,.1);transform:translateY(-3px)}
.zk-dl-card-icon{margin:0 auto 16px;width:60px;height:60px;background:#F0F7ED;border-radius:14px;display:flex;align-items:center;justify-content:center;color:#2D7F0E}
.zk-dl-card-icon svg{stroke:#2D7F0E;width:32px;height:32px}
.zk-dl-card h2{font-size:1.1rem;margin-bottom:10px;font-weight:700}
.zk-dl-card > p{color:#68737D;font-size:.88rem;margin-bottom:18px;line-height:1.6}
.zk-dl-specs{display:flex;flex-direction:column;gap:8px;margin-bottom:22px;text-align:left;padding:0 8px}
.zk-dl-specs li{display:flex;align-items:center;gap:8px;font-size:.84rem;color:#2F3941;list-style:none}
.zk-dl-specs li svg{stroke:#43B02A;flex-shrink:0;width:14px;height:14px}
.zk-dl-card .zk-btn-primary,.zk-dl-card .zk-btn-secondary{width:100%;justify-content:center;padding:12px 0;font-size:.9rem;gap:8px}
.zk-dl-card .zk-btn-primary svg{stroke:#fff;width:16px;height:16px}
@media(max-width:768px){.zk-dl-grid{grid-template-columns:1fr}}

/* ============ Error Page ============ */
.zk-error-box{text-align:center;padding:80px 0}
.zk-error-num{font-size:5rem;font-weight:900;color:#E9EBED;margin-bottom:10px;letter-spacing:-.05em}
.zk-error-box h1{font-size:1.5rem;margin-bottom:10px}
.zk-error-box p{color:#68737D;margin-bottom:28px}

/* ============ Back to Top ============ */
.zk-backtop{position:fixed;bottom:28px;right:28px;width:42px;height:42px;background:#03363D;color:#fff;border:none;border-radius:50%;cursor:pointer;opacity:0;visibility:hidden;transition:all .3s;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 14px rgba(0,0,0,.15);z-index:90}
.zk-backtop.show{opacity:1;visibility:visible}
.zk-backtop:hover{background:#43B02A;transform:translateY(-2px)}

/* ============ View All link ============ */
.zk-view-all{color:#03363D;font-size:.88rem;font-weight:600;display:inline-flex;align-items:center;gap:4px}
.zk-view-all:hover{color:#43B02A;gap:8px}

/* ============ Section title ============ */
.zk-section-title{font-size:1.3rem;font-weight:700;color:#2F3941}

/* ============ Responsive ============ */
@media(max-width:1024px){
  .zk-post-grid{grid-template-columns:repeat(2,1fr)}
  .zk-feature-row{grid-template-columns:1fr;gap:32px}
  .zk-feature-row.reverse{direction:ltr}
  .zk-featured-card{grid-template-columns:1fr}
  .zk-featured-img{min-height:200px}
  .zk-detail-layout{grid-template-columns:1fr;gap:32px}
  .zk-sidebar{position:static}
  .zk-sidebar .zk-widget:first-child{position:static}
  .zk-footer-grid{grid-template-columns:repeat(2,1fr)}
  .zk-stats-grid{grid-template-columns:repeat(2,1fr)}
  .zk-download-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .zk-nav{display:none}
  .zk-mob-btn{display:block}
  .zk-header-link{display:none}
  .zk-hero{padding:48px 0 40px}
  .zk-hero h1{font-size:1.8rem}
  .zk-hero-desc{font-size:.9rem;margin-bottom:28px}
  .zk-trust-inner{gap:20px}
  .zk-trust-num{font-size:1.2rem}
  .zk-post-grid{grid-template-columns:1fr}
  .zk-tag-grid{grid-template-columns:repeat(2,1fr)}
  .zk-download-grid{grid-template-columns:1fr}
  .zk-footer-grid{grid-template-columns:1fr;gap:24px}
  .zk-stats-grid{grid-template-columns:repeat(2,1fr);gap:16px}
  .zk-stat-card .num{font-size:1.8rem}
  .zk-footer-brand-large .zk-brand-name{font-size:1.6rem}
  .zk-footer-brand-large .zk-brand-name img{width:36px;height:36px}
  .zk-footer-brand-large{padding:36px 0 16px}
  .zk-article-title{font-size:1.35rem}
  .zk-article-meta{font-size:.78rem;gap:6px}
  .zk-article-body h2{font-size:1.15rem;margin:28px 0 10px}
  .zk-article-body h3{font-size:1rem;margin:22px 0 8px}
  .zk-article-body{font-size:.95rem}
  .zk-article-body blockquote{padding:12px 16px;margin:16px 0}
  .zk-article-body pre{padding:14px 16px;font-size:.82rem}
  .zk-article-body table{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch}
  .zk-article-cta{flex-direction:column;align-items:stretch;padding:22px 20px;gap:12px}
  .zk-article-cta span{margin-right:0;margin-bottom:4px}
  .zk-article-cta .zk-btn-primary,.zk-article-cta .zk-btn-secondary{width:100%;justify-content:center}
  .zk-badge-row{gap:12px}
  .zk-badge{min-width:0;padding:16px 20px;flex:1 1 calc(50% - 12px)}
  .zk-badge-icon{width:44px;height:44px}
  .zk-badge-icon svg{width:22px;height:22px}
  .zk-featured{padding:36px 0}
  .zk-featured-text{padding:28px 24px}
  .zk-featured-text h2{font-size:1.2rem}
  .zk-featured-img{min-height:180px}
  .zk-feature-section{padding:40px 0}
  .zk-feature-text h2{font-size:1.25rem}
  .zk-feature-text p{font-size:.88rem}
  .zk-resources{padding:40px 0}
  .zk-cta-banner{padding:44px 0}
  .zk-cta-banner h2{font-size:1.3rem}
  .zk-stats-section{padding:44px 0}
  .zk-faq{padding:40px 0}
  .zk-faq-q{padding:14px 16px;font-size:.9rem}
  .zk-faq-a{padding:0 16px;font-size:.85rem}
  .zk-faq-item.open .zk-faq-a{padding:0 16px 14px}
  .zk-page-header h1{font-size:1.35rem}
  .zk-breadcrumb{font-size:.78rem;gap:4px}
  .zk-list-item h3{font-size:.95rem}
  .zk-list-item > p{font-size:.84rem}
  .zk-pagination a,.zk-pagination span{min-width:34px;height:34px;font-size:.82rem}
  .zk-dl-hero{padding:40px 0 32px}
  .zk-dl-hero h1{font-size:1.5rem}
  .zk-dl-hero-desc{font-size:.88rem}
  .zk-dl-card{padding:24px 20px}
  .zk-dl-card h2{font-size:1rem}
  .zk-error-box{padding:60px 0}
  .zk-error-num{font-size:3.5rem}
  .zk-widget{padding:16px}
}
@media(max-width:480px){
  .zk-wrap{padding:0 14px}
  .zk-header-inner{padding:0 14px;gap:16px}
  .zk-logo{font-size:.95rem}
  .zk-lang-btn{padding:5px 8px;font-size:.78rem}
  .zk-hero{padding:36px 0 32px}
  .zk-hero h1{font-size:1.45rem}
  .zk-hero-desc{font-size:.85rem;margin-bottom:24px}
  .zk-hero-btns{flex-direction:column;width:100%}
  .zk-btn-primary,.zk-btn-outline-light,.zk-btn-secondary{width:100%;justify-content:center;padding:12px 24px;font-size:.9rem}
  .zk-trust-bar{padding:16px 0}
  .zk-trust-inner{gap:16px}
  .zk-trust-num{font-size:1.1rem}
  .zk-trust-label{font-size:.72rem}
  .zk-cta-btns{flex-direction:column;width:100%}
  .zk-cta-btns .zk-btn-primary,.zk-cta-btns .zk-btn-outline-light{width:100%}
  .zk-tag-grid{grid-template-columns:1fr}
  .zk-stats-grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .zk-stat-card{padding:12px}
  .zk-stat-card .num{font-size:1.5rem}
  .zk-featured-text{padding:22px 18px}
  .zk-featured-text h2{font-size:1.1rem}
  .zk-featured-label{font-size:.7rem;padding:3px 10px}
  .zk-badge{flex:1 1 100%;padding:14px 16px}
  .zk-badge-icon{width:40px;height:40px}
  .zk-feature-visual{aspect-ratio:16/10}
  .zk-post-card-body{padding:18px 16px}
  .zk-post-card h3{font-size:.9rem}
  .zk-article-title{font-size:1.2rem}
  .zk-article-body ul,.zk-article-body ol{padding-left:18px}
  .zk-footer-top{padding:32px 0 28px}
  .zk-footer-col h4{margin-bottom:10px}
  .zk-dl-cards-section{padding:28px 0 36px}
  .zk-dl-card{padding:20px 16px}
  .zk-dl-card-icon{width:48px;height:48px}
  .zk-dl-specs{padding:0 4px}
  .zk-dl-specs li{font-size:.8rem}
}

/* Print */
@media print{
  .zk-header,.zk-footer,.zk-backtop,.zk-sidebar,.zk-article-cta,.zk-cta-banner,.zk-mob-menu,.zk-overlay,.zk-trust-bar{display:none !important}
  .zk-detail-layout{display:block}
}