.articlebody .bk-guide{max-width:900px;width:100%;margin:30px auto 46px;padding:25px 20px 20px;border:1px solid #e2e6ed;border-radius:24px;background:#f6f7f9;text-align:center;color:#252b34;font:14px/1.5 Arial,sans-serif;box-sizing:border-box}.bk-guide *{box-sizing:border-box}.articlebody .bk-guide h3{font:700 21px/1.3 Arial,sans-serif;letter-spacing:0;margin:0 0 10px;scroll-margin-top:115px}.articlebody .bk-intro{max-width:680px;font:14px/1.6 Arial,sans-serif;color:#758091;margin:0 auto 23px}.bk-machine{width:100%;margin:auto;max-width:860px}.bk-viewport{width:100%;position:relative;aspect-ratio:900/570;border:7px solid #252930;border-top-width:13px;border-bottom-width:10px;border-radius:14px 14px 3px 3px;overflow:hidden;background:#252930;box-shadow:0 10px 25px #26374a25}.bk-canvas{width:900px;height:570px;position:absolute;left:0;top:0;transform-origin:top left;background:radial-gradient(ellipse at 10% 100%,#8386b8,transparent 55%),linear-gradient(135deg,#69a5c1,#bbd0e1 58%,#d7bdc5);text-align:left;color:#2a3038;font:14px/1.4 Arial,sans-serif;overflow:hidden}.bk-canvas h4,.bk-canvas p{margin:0;font:inherit}.bk-menubar{height:23px;background:#f5f8fcaf;display:flex;align-items:center;gap:24px;padding:0 15px;font-size:11px}.bk-clock{margin-left:auto}.bk-desktop-label{position:absolute;top:40px;right:25px;color:#ffffffa8;font-size:12px}.bk-window{position:absolute;top:44px;left:35px;width:830px;height:452px;border:1px solid #c5cdd7;border-radius:10px;background:#fff;box-shadow:0 13px 30px #223e5c33;overflow:hidden;transition:opacity .25s,transform .3s}.bk-windowbar{height:39px;background:#f4f5f7;display:flex;align-items:center;gap:17px;padding:0 13px;border-bottom:1px solid #e1e5ea;font-size:13px}.bk-window-actions{margin-left:auto}.bk-traffic{display:flex;gap:6px}.bk-traffic i{width:11px;height:11px;border-radius:50%;background:#ff6258}.bk-traffic i:nth-child(2){background:#ffbd2e}.bk-traffic i:nth-child(3){background:#28c840}.bk-sidebar{position:absolute;top:39px;bottom:0;left:0;width:186px;background:#e9edf2d9;padding:12px 9px;border-right:1px solid #d9dfe8;font-size:12px}.bk-sidebar small{display:block;font-size:10px;color:#89919a;font-weight:700;margin:5px 7px 3px}.bk-sidebar>div{height:28px;display:flex;align-items:center;border-radius:6px;padding:0 9px;white-space:nowrap}.bk-sidebar>strong{display:block;margin:8px;font-size:13px}.bk-main{position:absolute;top:39px;bottom:0;left:186px;right:0;overflow:hidden}.bk-device-page{padding:14px 19px 11px;height:100%}.bk-device-heading{display:flex;align-items:center;gap:13px;height:59px}.bk-mini-phone{font-size:48px;color:#3297dc;line-height:1}.bk-device-heading h4{font-size:23px;font-weight:700}.bk-device-heading p{font-size:11px;color:#8a929c;margin-top:4px}.bk-tabs{display:flex;align-items:center;justify-content:space-between;height:35px;border-bottom:1px solid #e0e4e9;font-size:11px;color:#6e7681}.bk-tabs span{padding:4px 7px;border-radius:5px}.bk-tabs span:first-child{background:#e4e6e9;font-weight:700;color:#252b34}.bk-software{display:flex;gap:22px;padding:13px 8px;border-bottom:1px solid #e3e6eb;font-size:11px;min-height:86px}.bk-software>b{width:65px}.bk-software p{margin:5px 0 8px;color:#616b78}.bk-ui-button{display:inline-block;min-width:78px;padding:4px 10px;border:1px solid #d9dde3;background:linear-gradient(#fff,#e9ebef);border-radius:5px;text-align:center;font-size:11px;white-space:nowrap;line-height:1.4;box-shadow:0 1px 1px #0000000a}.bk-backup-area{display:flex;gap:18px;padding:12px 8px 0;font-size:11px}.bk-backup-area>h4{font-size:11px;font-weight:700;min-width:69px;margin-top:4px}.bk-backup-options{flex:1;min-width:0}.bk-radio{display:flex;align-items:center;gap:7px;padding:4px 2px;min-height:25px;font-size:10.5px}.bk-radio i{width:12px;height:12px;border:1px solid #b7c0cb;border-radius:50%;background:#fff;flex-shrink:0}.bk-encrypt{display:flex;align-items:center;gap:7px;padding:4px 2px;margin-top:2px}.bk-encrypt i{width:12px;height:12px;border:1px solid #b7c0cb;border-radius:3px;background:#fff;font:10px/12px Arial;text-align:center;flex-shrink:0}.bk-encrypt-help{font-size:9px!important;color:#8a929e;margin:3px 0 8px!important}.bk-last-backup{padding:4px 0;font-size:10.5px}.bk-last-backup strong{font-weight:400;color:#8c95a2}.bk-backup-actions{display:flex;justify-content:space-between;gap:8px;margin-top:5px}.bk-storage{position:absolute;bottom:12px;left:22px;right:22px;height:14px;background:#eef0f4;border:1px solid #dde3eb;border-radius:4px;display:flex;overflow:hidden;font-size:8px;line-height:13px;color:#fff}.bk-storage span{padding:0 7px;background:#f93867}.bk-storage span:nth-child(2){background:#edc234}.bk-storage span:nth-child(3){background:#53b9e4;width:38%}.bk-dock{position:absolute;bottom:7px;left:50%;transform:translateX(-50%);height:56px;display:flex;align-items:center;gap:10px;padding:5px 10px;border:1px solid #ffffffa0;background:#f1f4fb69;border-radius:15px;box-shadow:0 3px 12px #40556b22}.bk-dock>span{height:40px;width:40px;display:grid;place-items:center;color:#496981;font-size:31px;background:linear-gradient(#fff,#dae1eb);border-radius:10px;position:relative}.bk-dock em{height:38px;width:1px;background:#9babbf66}.bk-dock .bk-finder-icon{background:transparent}.bk-finder-icon svg{width:40px;height:40px;display:block}.bk-finder-icon small{position:absolute;bottom:55px;background:#f5f7fb;border:1px solid #c4d0df;border-radius:6px;padding:4px 9px;font-size:12px;color:#2c3746;display:none}.bk-stage-finder .bk-finder-icon small{display:block}.bk-dock .bk-dock-safari{color:#258ce9}.bk-dock .bk-dock-mail{background:#409df5;color:#fff}.bk-dock .bk-dock-photos{color:#ee936c}.bk-pointer{position:absolute;left:0;top:0;width:25px;height:30px;z-index:30;pointer-events:none;opacity:0;transition:left .55s,top .55s,opacity .15s}.bk-pointer svg{width:25px;height:30px}.bk-pointer.is-visible{opacity:1}.bk-pointer.is-tapping{border-radius:50%;box-shadow:0 0 0 9px #c8102e24;background:#c8102e15}.bk-highlight{outline:2px solid #c8102e!important;outline-offset:2px;background-color:#fff1f4!important;border-radius:4px}.bk-dock .bk-highlight{background-color:transparent!important;border-radius:10px}.bk-allow-dialog,.bk-password-dialog{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:340px;padding:21px 24px;border:1px solid #ced5df;border-radius:13px;background:#f2f4f9;box-shadow:0 15px 50px #1b2e4e44;display:none;text-align:center;z-index:20}.bk-dialog-icon{font-size:43px;color:#329ade}.bk-allow-dialog h4,.bk-password-dialog h4{font-weight:700;font-size:17px;margin:7px 0 8px}.bk-allow-dialog p,.bk-password-dialog p{font-size:12px;margin:0 0 18px}.bk-allow-dialog .bk-ui-button{margin:0 5px}.bk-cable-card{display:none;position:absolute;inset:95px 180px 140px;background:#e7eff8ed;border:1px solid #fff;border-radius:22px;text-align:center;padding-top:55px;box-shadow:0 10px 35px #425c7b33}.bk-cable-card>span{font-size:75px;vertical-align:middle;color:#3c6d91}.bk-cable-card>svg{width:130px;vertical-align:middle;margin:0 15px}.bk-cable-card>p{margin:23px 0;font-size:17px;font-weight:700}.bk-phone{display:none;position:absolute;right:33px;top:63px;width:220px;height:450px;background:#242a33;border:3px solid #afb6c1;border-radius:36px;padding:6px;box-shadow:0 15px 50px #1a283c66;z-index:21}.bk-phone-screen{height:100%;border-radius:27px;position:relative;overflow:hidden;background:linear-gradient(160deg,#94b7d2,#cfadca 65%,#6d84bd)}.bk-phone-time{position:absolute;top:10px;left:18px;font-size:9px;z-index:5}.bk-phone-island{position:absolute;top:8px;left:50%;transform:translateX(-50%);width:64px;height:19px;background:#11141a;border-radius:15px;z-index:5}.bk-phone-wallpaper{padding-top:58px;text-align:center}.bk-phone-wallpaper>span{display:block;font-size:43px;color:#fff}.bk-phone-wallpaper small{color:#f7f9ff;font-size:11px}.bk-phone-trust{position:absolute;left:12px;right:12px;top:155px;background:#f3f6fceF;border-radius:13px;overflow:hidden;text-align:center}.bk-phone-trust h4{font-size:14px;font-weight:700;padding:16px 9px 7px}.bk-phone-trust p{font-size:11px;padding:0 14px 16px}.bk-phone-trust>div{display:flex;border-top:1px solid #ced4dd;font-size:12px;color:#1674ce}.bk-phone-trust>div>span{width:50%;padding:12px 4px}.bk-phone-trust>div>span+span{border-left:1px solid #ced4dd}.bk-phone-home{position:absolute;bottom:7px;left:50%;transform:translateX(-50%);width:70px;height:4px;border-radius:4px;background:#202733}.bk-phone-code{display:none;position:absolute;inset:40px 0 0;background:#d4e3f5eA;text-align:center;padding:27px 15px}.bk-phone-code>span{font-size:25px}.bk-phone-code h4{font-size:17px;margin:11px 0}.bk-phone-code p{font-size:10px}.bk-code-dots{font-size:16px;letter-spacing:2px;margin:20px 5px}.bk-keypad{font-size:23px;line-height:1.9}.bk-phone-label{display:block;font-size:11px;color:#fff;text-align:center;margin-top:13px}.bk-password-field{display:flex;gap:10px;align-items:center;padding:8px 10px;border:1px solid #cbd3de;border-radius:5px;background:#fff;margin:9px 0;text-align:left;font-size:12px}.bk-password-field span{width:70px}.bk-password-field b{color:#3c495d;letter-spacing:2px}.bk-password-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:17px}.bk-lock{color:#7187a3;font-size:31px}.bk-backup-progress{display:none;margin-top:7px;font-size:10px}.bk-backup-progress>i{display:block;height:5px;background:#d9e0eb;border-radius:6px;margin-top:6px;overflow:hidden}.bk-backup-progress b{display:block;background:#3a93e1;width:65%;height:5px}.bk-spinner{display:none;margin-left:auto;width:12px;height:12px;border:2px solid #b7c3d0;border-top-color:#428fd6;border-radius:50%;animation:bk-spin 1s linear infinite}.bk-base{width:105%;margin-left:-2.5%;height:11px;border:1px solid #a7afb9;border-radius:2px 2px 45% 45%;background:linear-gradient(#dfe3ea,#9ba3af);box-shadow:0 7px 13px #32445e22}.bk-base:before{content:"";display:block;margin:auto;width:15%;height:3px;background:#959eaa;border-radius:0 0 8px 8px}.articlebody .bk-caption{font:600 15px/1.6 Arial,sans-serif;min-height:48px;margin:24px auto 7px;max-width:710px}.articlebody .bk-note{font:12px/1.5 Arial,sans-serif;color:#748195;min-height:36px;margin:0 auto 14px;max-width:700px}.bk-controls{display:flex;gap:7px;flex-wrap:wrap;justify-content:center}.articlebody .bk-controls button{font:600 12px/1.4 Arial,sans-serif;padding:9px 12px;border:1px solid #dbe1e9;border-radius:9px;background:#fff;color:#3b4656;cursor:pointer;min-height:36px}.articlebody .bk-controls [data-bk-play]{background:#fff1f4;color:#c8102e;border-color:#e6b3bf}.bk-controls button:disabled{opacity:.5;cursor:default}.bk-controls button:focus-visible{outline:3px solid #c8102e;outline-offset:3px}.bk-counter{font-size:11px;color:#7d8a9b;margin:10px 0}.articlebody .bk-disclaimer{font:10px/1.5 Arial,sans-serif;color:#8c96a6;margin:0}.bk-expanded{position:fixed!important;inset:12px!important;z-index:10000!important;max-width:none!important;width:auto!important;margin:0!important;overflow:auto!important;padding:18px!important}.bk-expanded .bk-machine{max-width:min(860px,110vh)}.bk-expanded .bk-intro{margin-bottom:12px}.bk-expanded .bk-caption{margin-top:14px;min-height:24px}.bk-expanded .bk-note{min-height:18px}.bk-expanded .bk-disclaimer{display:none}
/* Scenes retain the real Dock/sidebar/phone locations; only the illustrated state changes. */
.bk-empty,.bk-files{display:none}.bk-stage-cable .bk-cable-card{display:block}.bk-stage-cable .bk-window,.bk-stage-finder .bk-window,.bk-stage-start .bk-window,.bk-stage-search .bk-window,.bk-stage-open-app .bk-window{opacity:0;transform:scale(.97);pointer-events:none}.bk-stage-allow .bk-allow-dialog{display:block}.bk-stage-device .bk-files{display:block;padding:25px}.bk-stage-device .bk-device-page{display:none}.bk-files h4{font-size:23px;font-weight:700}.bk-file-grid{display:flex;gap:30px;margin:45px 0;text-align:center;color:#6e9fc2}.bk-file-grid>span{font-size:55px}.bk-file-grid small{display:block;font-size:12px;color:#667385}.bk-stage-trust-mac .bk-empty{display:block;padding:45px;text-align:center}.bk-empty svg{width:60px;height:80px}.bk-empty h4{font-size:23px;font-weight:700;margin:13px 0}.bk-empty p{font-size:12px;margin:10px 0 20px}.bk-stage-trust-mac .bk-device-page{display:none}.bk-stage-trust-phone .bk-phone,.bk-stage-passcode .bk-phone,.bk-stage-backup-passcode .bk-phone{display:block}.bk-stage-passcode .bk-phone-code,.bk-stage-backup-passcode .bk-phone-code{display:block}.bk-stage-passcode .bk-phone-trust,.bk-stage-backup-passcode .bk-phone-trust{display:none}.bk-stage-password .bk-password-dialog,.bk-stage-verify .bk-password-dialog,.bk-stage-set-password .bk-password-dialog{display:block}.bk-encryption-on .bk-encrypt i{background:#1681de;border-color:#1681de}.bk-encryption-on .bk-encrypt i:after{content:"✓";color:#fff}.bk-local-on .bk-local i{background:#1681de;border-color:#1681de;box-shadow:inset 0 0 0 3px #fff}.bk-complete .bk-last-backup strong{font-weight:700;color:#2379b9}.bk-stage-progress .bk-backup-progress,.bk-stage-progress .bk-spinner{display:block}.bk-stage-progress .bk-backup-progress b{animation:bk-progress 3s linear both}.bk-stage-progress .bk-backup-actions{display:none}.bk-device-selected .bk-iphone-location{background:#d2d9e4}.bk-windows .bk-canvas{background:radial-gradient(ellipse at 65% 60%,#6bb3ef,transparent 50%),linear-gradient(135deg,#2d75bb,#b0cfe9)}.bk-windows .bk-menubar{display:none}.bk-windows .bk-window{top:25px;height:490px;left:32px;width:836px;border-radius:6px}.bk-windows .bk-windowbar{height:33px;background:#f2f3f5}.bk-itunes-mark{font-size:21px;color:#e46698}.bk-itunes-toolbar{height:34px;display:flex;align-items:center;gap:24px;font-size:11px;padding:0 15px;border-bottom:1px solid #d6dce4;background:#fafbfd}.bk-music{margin-left:35px}.bk-device-icon{display:inline-grid;place-items:center;width:28px;height:25px;font-size:24px;color:#677c95}.bk-windows .bk-sidebar,.bk-windows .bk-main{top:67px}.bk-windows .bk-sidebar{background:#f1f3f6}.bk-windows .bk-sidebar>div{height:33px}.bk-windows .bk-device-page{padding-top:8px}.bk-windows .bk-sidebar>div:first-of-type{background:#d7e8fa}.bk-taskbar{position:absolute;bottom:0;left:0;right:0;height:42px;background:#e9f2ffeb;display:flex;justify-content:center;align-items:center;gap:24px;color:#3683c1}.bk-taskbar>span{font-size:27px;line-height:32px;width:34px;text-align:center}.bk-task-itunes{color:#e36d9c}.bk-start-menu{display:none;position:absolute;bottom:55px;left:170px;right:170px;height:340px;background:#eff5ffed;box-shadow:0 15px 35px #214b7b44;border:1px solid #dde8f7;border-radius:12px;padding:30px;z-index:18}.bk-search{height:38px;border:1px solid #b9cbe1;border-bottom:2px solid #3188ce;border-radius:7px;background:#fff;padding:9px 12px;font-size:14px}.bk-start-menu>small{display:block;color:#738398;font-size:11px;margin:24px 0 10px}.bk-search-result{display:flex;align-items:center;gap:16px;background:#fff;border-radius:8px;padding:16px;font-size:17px}.bk-search-result>b{font-size:39px;color:#e36d9c}.bk-search-result small{display:block;font-size:11px;color:#7b8797}.bk-search-result strong{font-size:12px;color:#397cae;margin-left:auto}.bk-stage-search .bk-start-menu,.bk-stage-open-app .bk-start-menu{display:block}.bk-windows .bk-stage-start{background:none}@keyframes bk-spin{to{transform:rotate(360deg)}}@keyframes bk-progress{from{width:5%}to{width:95%}}
@media(max-width:650px){.articlebody .bk-guide{padding:20px 10px 16px;border-radius:18px}.articlebody .bk-guide h3{font-size:18px}.articlebody .bk-intro{font-size:12px;margin-bottom:16px}.bk-viewport{border-width:4px;border-top-width:8px;border-bottom-width:6px;border-radius:9px 9px 3px 3px}.articlebody .bk-caption{font-size:13px;min-height:62px}.articlebody .bk-note{font-size:11px}.articlebody .bk-controls button{padding:8px 10px;font-size:11px}.bk-base{height:7px}.bk-expanded .bk-machine{min-width:650px}.bk-expanded{overflow:auto!important}}
@media(prefers-reduced-motion:reduce){.bk-guide *{animation:none!important;transition:none!important}}

.bk-windows.bk-stage-device .bk-files{display:none}.bk-windows.bk-stage-device .bk-device-page{display:block}