:root{--yellow:#fee500;--ink:#191919;--muted:#666;--line:#e7e7e7;--soft:#f7f7f5;--white:#fff;--max:1240px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);font:16px/1.72 Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",Arial,sans-serif;background:#fff}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}button,input,select,textarea{font:inherit}.kk-wrap,.container{width:min(var(--max),calc(100% - 40px));margin:auto}.kk-top{background:#191919;color:#ddd;font-size:13px}.kk-top .kk-wrap{height:34px;display:flex;align-items:center;justify-content:space-between}.kk-top a{color:#fee500}.kk-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}.kk-nav{height:74px;display:flex;align-items:center;gap:32px}.kk-logo{display:flex;align-items:center;gap:10px;font-size:21px;font-weight:900;white-space:nowrap}.kk-logo i{display:grid;place-items:center;width:42px;height:42px;border-radius:50%;background:var(--yellow);font-style:normal;font-size:16px}.kk-nav nav{display:flex;align-items:center;gap:26px;margin-left:auto}.kk-nav nav a{font-weight:700}.kk-nav nav a:hover{color:#a47c00}.kk-nav form{display:flex;width:230px;height:40px;border:1px solid #ccc;border-radius:4px;overflow:hidden}.kk-nav form input{min-width:0;flex:1;border:0;padding:0 12px;outline:0}.kk-nav form button{border:0;background:#202020;color:#fff;padding:0 14px}.kk-menu{display:none}.kk-hero{background:linear-gradient(135deg,#fee500 0%,#ffe94b 56%,#fff4a8 100%);overflow:hidden}.kk-hero-grid{min-height:600px;display:grid;grid-template-columns:1.12fr .88fr;align-items:center;gap:70px}.kk-eyebrow,.kk-heading>span{display:inline-block;margin-bottom:13px;font-size:13px;font-weight:900;letter-spacing:.14em;text-transform:uppercase}.kk-hero-copy h1{max-width:760px;margin:0;font-size:clamp(44px,5vw,76px);line-height:1.08;letter-spacing:-.055em}.kk-hero-copy>p{max-width:690px;margin:24px 0 30px;font-size:20px;line-height:1.75}.kk-actions{display:flex;gap:12px}.kk-btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 24px;border-radius:4px;font-weight:900}.kk-btn-dark{background:#191919;color:#fff}.kk-btn-light{background:#fff;border:1px solid rgba(0,0,0,.18)}.kk-trust{display:flex;flex-wrap:wrap;gap:20px;margin-top:27px;font-size:14px;font-weight:700}.kk-trust span:before{content:'✓';margin-right:7px}.kk-phone{position:relative;justify-self:center;width:330px;height:520px;padding:65px 24px 30px;border:10px solid #181818;border-radius:44px;background:#b8d8ea;box-shadow:0 28px 60px rgba(0,0,0,.24);transform:rotate(3deg)}.kk-phone-top{position:absolute;top:14px;left:50%;width:90px;height:22px;border-radius:20px;background:#181818;transform:translateX(-50%)}.kk-chat{max-width:245px;margin-bottom:18px;padding:16px 18px;border-radius:15px;box-shadow:0 5px 15px rgba(0,0,0,.08)}.kk-chat b,.kk-chat small{display:block}.kk-chat small{margin-top:5px;color:#666}.kk-chat.yellow{background:#fee500}.kk-chat.white{background:#fff}.kk-chat.right{margin-left:auto}.kk-section{padding:92px 0;border-bottom:1px solid var(--line)}.kk-heading{text-align:center;max-width:800px;margin:0 auto 38px}.kk-heading h2{margin:0 0 12px;font-size:clamp(32px,4vw,48px);line-height:1.18;letter-spacing:-.035em}.kk-heading p{margin:0;color:var(--muted);font-size:17px}.kk-heading-row{max-width:none;display:flex;align-items:end;justify-content:space-between;text-align:left}.kk-heading-row a{font-weight:800;text-decoration:underline}.kk-download-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.kk-download-card{padding:28px;border:1px solid var(--line);background:#fff;transition:.2s}.kk-download-card:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(0,0,0,.08)}.kk-platform{display:grid;place-items:center;width:58px;height:58px;margin-bottom:26px;border-radius:50%;background:var(--yellow);font-size:13px;font-weight:900}.kk-download-card h3{margin:0 0 8px;font-size:21px}.kk-download-card p{min-height:55px;margin:0 0 22px;color:var(--muted)}.kk-download-card>a{font-weight:900;text-decoration:underline;text-underline-offset:4px}.kk-safe-note{margin-top:18px;padding:16px 20px;border-left:4px solid #d4af00;background:#fffbe5}.kk-feature-section{background:var(--soft);margin-left:calc(50% - 50vw);margin-right:calc(50% - 50vw);padding-left:max(20px,calc((100vw - var(--max))/2));padding-right:max(20px,calc((100vw - var(--max))/2))}.kk-feature-grid{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid #d9d9d4;border-left:1px solid #d9d9d4}.kk-feature-grid article{min-height:235px;padding:32px;border-right:1px solid #d9d9d4;border-bottom:1px solid #d9d9d4;background:#fff}.kk-feature-grid b{color:#b49700;font-size:13px}.kk-feature-grid h3{margin:20px 0 8px;font-size:23px}.kk-feature-grid p{margin:0;color:var(--muted)}.kk-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:26px}.kk-steps article{position:relative;padding-top:68px}.kk-steps i{position:absolute;top:0;left:0;display:grid;place-items:center;width:48px;height:48px;border-radius:50%;background:#191919;color:#fee500;font-style:normal;font-weight:900}.kk-steps article:not(:last-child):after{content:'';position:absolute;top:24px;left:62px;right:-15px;border-top:1px dashed #aaa}.kk-steps h3{font-size:21px;margin:0 0 7px}.kk-steps p{margin:0;color:var(--muted)}.kk-article-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.kk-article-grid article{display:flex;flex-direction:column;min-height:260px;padding:25px;border:1px solid var(--line)}.kk-article-grid article>span{font-size:13px;color:#8d7200;font-weight:900}.kk-article-grid h3{margin:14px 0 10px;font-size:20px;line-height:1.45}.kk-article-grid p{margin:0;color:var(--muted)}.kk-article-grid .read{margin-top:auto;padding-top:20px;font-weight:900;text-decoration:underline}.kk-security{display:grid;grid-template-columns:1.2fr .8fr;gap:60px;align-items:center;padding-left:58px;padding-right:58px;background:#252525;color:#fff;border:0}.kk-security h2{font-size:43px;line-height:1.2;margin:0 0 15px}.kk-security p,.kk-security li{color:#ddd}.kk-security aside{padding:35px;background:var(--yellow);color:#191919}.kk-security aside strong{font-size:25px}.kk-security aside p{color:#333}.kk-site-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:#ddd;border:1px solid #ddd}.kk-site-grid a{min-height:125px;padding:22px;background:#fff}.kk-site-grid strong,.kk-site-grid small{display:block}.kk-site-grid small{margin-top:7px;color:var(--muted)}.kk-faq{max-width:900px;margin:auto}.kk-faq details{border-top:1px solid var(--line);padding:20px 5px}.kk-faq details:last-child{border-bottom:1px solid var(--line)}.kk-faq summary{cursor:pointer;font-size:19px;font-weight:900}.kk-faq details p{color:var(--muted)}.kk-disclaimer{padding:44px;background:#fffbe7;border:1px solid #eee3aa}.kk-disclaimer h2{margin-top:0}.kk-footer{margin-top:80px;background:#161616;color:#eee}.kk-footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:70px;padding:65px 0}.footer-logo{color:#fff}.kk-footer-grid p{max-width:520px;color:#aaa}.kk-footer-grid>div:not(:first-child){display:flex;flex-direction:column;gap:9px}.kk-footer-grid strong{margin-bottom:8px}.kk-footer-grid a{color:#ccc}.kk-copy{display:flex;justify-content:space-between;gap:20px;padding:18px 0;border-top:1px solid #333;color:#888;font-size:13px}
/* inner pages */.page-wrap{padding:42px 0 70px}.breadcrumb{margin-bottom:24px;color:#777;font-size:14px}.breadcrumb span{margin:0 8px}.content-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:35px}.content-main{min-width:0}.page-heading{padding:34px;background:#fee500;margin-bottom:24px}.page-heading h1{margin:0;font-size:38px}.page-heading p{margin:8px 0 0}.article-list{display:grid;gap:14px}.article-row{display:grid;grid-template-columns:220px 1fr;gap:22px;padding:20px;border:1px solid var(--line)}.article-row img,.cover-placeholder{width:220px;height:145px;object-fit:cover;background:#fee500;display:grid;place-items:center;font-weight:900}.article-row h2{margin:5px 0;font-size:23px}.article-row p{margin:0;color:var(--muted)}.article-row span,.article-row small{color:#876d00;font-weight:700}.sidebar{border:1px solid var(--line);padding:20px;height:max-content}.sidebar h3{margin-top:0}.sidebar a{display:block;padding:9px 0;border-bottom:1px solid var(--line)}.article-detail{border:1px solid var(--line);padding:38px}.article-detail header>span{color:#8a7000;font-weight:900}.article-detail h1{font-size:42px;line-height:1.25;margin:10px 0}.article-meta{color:#888}.article-hero{margin:25px 0}.rich-content{font-size:17px}.rich-content h2{margin-top:36px;font-size:27px}.rich-content p,.rich-content li{color:#333}.rich-content a{text-decoration:underline}.website-grid,.tool-grid,.amazon-category-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.website-card,.tool-card,.amazon-category-grid article{padding:24px;border:1px solid var(--line)}.website-card h2,.tool-card h2{margin:0 0 7px}.website-card p,.tool-card p{color:var(--muted)}.btn,.text-button{display:inline-block;padding:10px 18px;background:#191919;color:#fff;border:0;border-radius:3px}.table-wrap{overflow:auto}.amazon-table{width:100%;border-collapse:collapse}.amazon-table th,.amazon-table td{padding:12px;border:1px solid #ddd;text-align:left}.field{margin-bottom:18px}.field label{display:block;font-weight:700;margin-bottom:6px}.field input,.field textarea,.field select{width:100%;padding:11px;border:1px solid #bbb}.alert{padding:12px;background:#ffe5e5;color:#9c1616}.back-top{position:fixed;right:18px;bottom:18px;display:none;width:44px;height:44px;border:0;background:#fee500;font-weight:900}.back-top.show{display:block}
@media(max-width:1000px){.kk-nav nav{display:none}.kk-nav form{margin-left:auto}.kk-hero-grid{grid-template-columns:1fr;min-height:auto;padding:75px 0}.kk-phone{display:none}.kk-download-grid,.kk-article-grid{grid-template-columns:repeat(2,1fr)}.kk-feature-grid{grid-template-columns:repeat(2,1fr)}.kk-steps{grid-template-columns:repeat(2,1fr)}.kk-steps article:after{display:none}.kk-site-grid{grid-template-columns:repeat(3,1fr)}.content-layout{grid-template-columns:1fr}.sidebar{display:none}}
@media(max-width:640px){.kk-wrap,.container{width:min(100% - 24px,var(--max))}.kk-top{display:none}.kk-nav{height:64px}.kk-logo span{font-size:17px}.kk-nav form{display:none}.kk-hero-grid{padding:55px 0}.kk-hero-copy h1{font-size:42px}.kk-hero-copy>p{font-size:17px}.kk-section{padding:62px 0}.kk-download-grid,.kk-feature-grid,.kk-article-grid,.kk-site-grid,.kk-steps{grid-template-columns:1fr}.kk-security{grid-template-columns:1fr;padding:42px 25px;gap:30px}.kk-security h2{font-size:34px}.kk-heading-row{align-items:start}.kk-footer-grid{grid-template-columns:1fr;gap:30px}.kk-copy{flex-direction:column}.article-row{grid-template-columns:1fr}.article-row img,.cover-placeholder{width:100%;height:190px}.article-detail{padding:22px}.article-detail h1{font-size:32px}}