/* 818Cloud Accounts · R5.1 alignment.
 * Tokens and layered-cloud composition follow lingxi-official/css/cloud-site.css.
 * Scoped to Accounts; no external font, asset service or build dependency.
 */
.accounts-r51{--cloud-blue:#1765ff;--cloud-ink:#202b3d;--cloud-muted:#667d9e;--cloud-line:#e1e8f3;--focus:#1765ff;margin:0;color:var(--cloud-ink);background:#fff;font:14px/1.7 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC","Segoe UI",sans-serif;color-scheme:light;-webkit-font-smoothing:antialiased}
.accounts-r51 *{box-sizing:border-box}.accounts-r51 [hidden]{display:none!important}.accounts-r51 h1,.accounts-r51 h2,.accounts-r51 h3,.accounts-r51 p{margin:0}.accounts-r51 a{color:inherit;text-decoration:none}.accounts-r51 button,.accounts-r51 input{font:inherit}.accounts-r51 button{cursor:pointer}.accounts-r51 button:disabled{cursor:not-allowed}.accounts-r51 button,.accounts-r51 a,.accounts-r51 input{-webkit-tap-highlight-color:transparent}.accounts-r51 :focus-visible{outline:3px solid var(--focus);outline-offset:4px}.accounts-r51 ::selection{background:#dce8ff}.accounts-r51 .icon{display:block;flex:none;width:20px;height:20px}.accounts-r51 .skip-link{position:fixed;top:-100px;left:20px;background:white;padding:12px;z-index:20}.accounts-r51 .skip-link:focus{top:8px}
.account-header{height:76px;background:#fff;border-bottom:1px solid #e7edf5;position:relative;z-index:2}.header-inner,.main-inner,.footer-inner{width:calc(100% - 112px);max-width:1248px;margin:0 auto}.header-inner{height:100%;display:flex;align-items:center}.brand{display:flex;align-items:center;gap:10px;white-space:nowrap}.brand-mark{width:32px;height:28px;color:var(--cloud-blue);display:block}.brand-word{font:400 24px/1 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;letter-spacing:-.6px}.brand-word b{color:var(--cloud-blue);font-weight:800}.header-divider{height:22px;width:1px;background:var(--cloud-line);margin:0 22px}.header-label{font-size:14px;color:#687c98}.header-links{display:flex;align-items:center;gap:30px;margin-left:auto}.header-links a,.header-links button{min-height:44px;display:flex;align-items:center;gap:7px;font-size:12px;color:#526782}.header-links button{padding:0;background:none;border:0}.header-links .icon{width:16px;height:16px}.header-links a:hover,.header-links button:hover{color:var(--cloud-blue)}
.account-main{position:relative;overflow:hidden;background:linear-gradient(110deg,#f7faff 0%,#f0f6ff 42%,#f5f9ff 70%,#fafcff 100%)}.account-main:after{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(ellipse at 33% 71%,#d6e7ff55,transparent 43%)}.main-inner{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1fr) 422px;gap:76px;align-items:center;min-height:calc(100svh - 142px);padding:58px 0 54px}.account-story{min-width:0}.eyebrow{display:flex;align-items:center;gap:10px;font-size:10px;font-weight:600;color:#647fa8;letter-spacing:2.1px}.eyebrow-line{width:20px;height:2px;background:#6b9dff}.account-story h1{font-size:49px;line-height:1.4;letter-spacing:-1.6px;font-weight:800;margin-top:19px}.account-story h1 em{font-style:normal;color:var(--cloud-blue);font-size:40px;letter-spacing:-1.2px;white-space:nowrap}.story-description{font-size:14px;line-height:2.05;color:var(--cloud-muted);margin-top:19px!important}.story-principles{display:flex;align-items:center;gap:26px;margin-top:16px;font-size:11px;color:#607998}.story-principles span{display:flex;align-items:center;gap:7px;white-space:nowrap}.story-principles .icon{width:15px;height:15px;color:#6995d2}
/* Same layered, isometric cloud language as the approved R5.1 homepage. */
.cloud-art{height:318px;position:relative;max-width:610px;margin:5px 0 0 -12px;perspective:850px;isolation:isolate}.art-grid{position:absolute;inset:0 -20px 0 -32px;background-image:radial-gradient(#9cb9e34a .8px,transparent .8px);background-size:22px 22px;mask-image:radial-gradient(ellipse at center,black,transparent 70%)}.art-glow{position:absolute;inset:30px 30px -10px 70px;border-radius:50%;background:radial-gradient(ellipse,#c7dcff9c,transparent 66%);filter:blur(15px)}.art-stage{position:absolute;inset:0;transform-style:preserve-3d;animation:cloud-float 7s ease-in-out infinite}.cloud-stack{position:absolute;width:258px;height:258px;left:calc(50% - 104px);top:38px;transform-style:preserve-3d;transform:rotateX(56deg) rotateZ(-43deg)}.cloud-plate{position:absolute;width:100%;height:100%;border-radius:20px;background:#f8fbff;border:3px solid #fff;box-shadow:6px 8px 0 #c8dcfc;overflow:hidden}.cloud-plate.bottom{transform:translateZ(-38px);background:#cfe1ff;opacity:.72}.cloud-plate.middle{transform:translateZ(-19px);background:#e5efff;opacity:.92}.cloud-plate.top{transform:translateZ(1px);box-shadow:6px 8px 0 #c4d8fa,6px 9px 35px #1765ff15}.plate-lines{position:absolute;inset:0;background:repeating-linear-gradient(0deg,transparent 0 25px,#e2ecfd 26px,transparent 27px),repeating-linear-gradient(90deg,transparent 0 25px,#e2ecfd 26px,transparent 27px)}.ai-chip{position:absolute;inset:59px;background:linear-gradient(125deg,#548eff,#1765ff);border:3px solid #8db4ff;border-radius:13px;box-shadow:4px 6px 0 #0a4dde,0 0 26px #2070ff33;display:flex;flex-direction:column;align-items:center;justify-content:center;color:white;overflow:hidden}.ai-chip:after{content:"";position:absolute;inset:6px;border:1px solid #b0cdff77;border-radius:7px}.ai-chip b{font:650 48px/1.1 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;letter-spacing:0}.ai-chip span{font:500 7px/1.6 sans-serif;letter-spacing:2px;margin-top:7px}.chip-sheen{position:absolute;inset:-90px;transform:translateX(-130%);background:linear-gradient(110deg,transparent 35%,#fff3 49%,transparent 64%);animation:chip-sheen 8s ease-in-out infinite}.plate-dot{position:absolute;width:5px;height:5px;background:#9cc0ff;border-radius:50%}.dot-one{top:22px;left:22px}.dot-two{bottom:22px;right:22px}.orbit{position:absolute;border:1px solid #c6dbf8aa;border-radius:50%;pointer-events:none}.orbit-one{width:475px;height:195px;left:45px;top:59px;transform:rotate(-21deg)}.orbit-two{width:409px;height:229px;left:108px;top:42px;transform:rotate(18deg);border-style:dashed;opacity:.65}.art-label{position:absolute;min-height:59px;padding:12px 17px;display:flex;align-items:center;gap:12px;background:#ffffffed;border:1px solid #fff;border-radius:7px;box-shadow:0 8px 24px #527ecc0c;z-index:2}.art-label .icon{color:#6599ff;width:23px;height:23px}.art-label small{display:block;font:500 7px/1.8 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;letter-spacing:1.1px;color:#7591b8}.art-label strong{display:block;font-size:11px;font-weight:500;color:#49648c}.art-label i{width:4px;height:4px;margin-left:7px;align-self:flex-start;margin-top:6px;border-radius:50%;background:#6195ff;box-shadow:0 0 0 3px #e6efff}.label-products{right:1px;top:41px;animation:label-float 8s ease-in-out -2s infinite}.label-learning{left:0;top:156px;animation:label-float 9s ease-in-out -4s infinite}.label-workspace{right:9px;bottom:22px;animation:label-float 8s ease-in-out -1s infinite}.art-cube{position:absolute;width:11px;height:11px;border-radius:2px;background:linear-gradient(150deg,#eef5ff,#7aafff);transform:rotate(25deg);box-shadow:0 7px 12px #548dec1c}.cube-one{top:73px;left:110px}.cube-two{bottom:71px;right:190px;width:8px;height:8px}.art-caption{position:absolute;bottom:1px;left:114px;font:500 7px/1.8 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;letter-spacing:1.8px;color:#7395c2}
.account-panel{padding-top:12px}.login-card{background:#fff;border:1px solid #e2eaf5;border-radius:9px;box-shadow:0 20px 70px #3455890b,0 3px 12px #34558904;padding:29px 32px 0;min-height:562px}.login-card:focus{outline:none}.card-heading{display:flex;align-items:center;justify-content:space-between}.welcome{font-size:12px;color:#7186a1}.account-symbol{width:32px;height:32px;border-radius:7px;background:#f0f5ff;display:flex;align-items:center;justify-content:center;color:#568bdf}.account-symbol .icon{width:18px;height:18px}.login-card h2{font-size:27px;line-height:1.45;font-weight:750;letter-spacing:-.5px;margin-top:5px}.card-description{font-size:12px;color:#7487a0;margin-top:7px!important}.login-switch{display:flex;border-bottom:1px solid #e4ebf5;margin-top:23px}.login-switch button{position:relative;flex:1;min-height:47px;padding:0 5px;border:0;background:transparent;color:#71849e;font-size:13px;line-height:1.4}.login-switch button.is-on{color:var(--cloud-blue);font-weight:650}.login-switch button.is-on:after{content:"";position:absolute;left:24px;right:24px;bottom:-1px;height:2px;background:var(--cloud-blue)}.login-switch button:hover{color:var(--cloud-blue)}.tab-pane{min-height:332px;padding-top:21px}.wx-instruction{display:flex;align-items:center;justify-content:center;gap:7px;color:#586f8d;font-size:12px}.wx-instruction .icon{color:#12a575;width:18px;height:18px}.wx-dock{text-align:center}.qr-frame{width:198px;height:198px;position:relative;margin:18px auto 0;padding:5px;border:1px solid #edf1f8;border-radius:4px;background:#fff;display:grid;place-items:center}.qr-frame img{width:186px;height:186px;display:block;object-fit:contain;image-rendering:pixelated}.qr-overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:14px;background:#f9fbff;color:#6b81a0;font-size:12px;text-align:center;padding:20px}.qr-spinner{width:25px;height:25px;border-radius:50%;border:2px solid #dde8fa;border-top-color:var(--cloud-blue);animation:spin 1s linear infinite}.qr-frame[data-state="error"] .qr-overlay,.qr-frame[data-state="expired"] .qr-overlay{color:#785639}.qr-corner{position:absolute;width:13px;height:13px;pointer-events:none;border-color:#92b7f7;border-style:solid;border-width:0}.corner-tl{left:-1px;top:-1px;border-top-width:2px;border-left-width:2px;border-top-left-radius:3px}.corner-tr{right:-1px;top:-1px;border-top-width:2px;border-right-width:2px;border-top-right-radius:3px}.corner-bl{left:-1px;bottom:-1px;border-bottom-width:2px;border-left-width:2px;border-bottom-left-radius:3px}.corner-br{right:-1px;bottom:-1px;border-bottom-width:2px;border-right-width:2px;border-bottom-right-radius:3px}.hint{font-size:11px;line-height:1.6;color:#7589a4;margin:13px auto 0!important;min-height:18px;max-width:320px;overflow-wrap:anywhere}.refresh{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:0;background:transparent;color:#4c81d2;font-size:11px;min-height:39px;padding:0 10px;margin-top:0}.refresh .icon{width:13px;height:13px}.refresh:hover{color:#0a51df}.refresh:disabled{opacity:.55}.card-bottom{min-height:53px;border-top:1px solid #edf1f7;display:flex;align-items:center;justify-content:center;gap:6px;color:#70839d;font-size:10px}.card-bottom .icon{width:12px;height:12px;color:#8397b3}.panel-note{text-align:center;font-size:11px;letter-spacing:.25px;color:#7b91ae;margin-top:20px!important}.wechat-authorize{min-height:215px;display:flex;align-items:center;justify-content:center;gap:24px;flex-direction:column}.wechat-authorize>.icon{width:50px;height:50px;color:#12a575}.wechat-authorize a{width:100%}.phone-instruction{font-size:12px;color:#7487a0;margin:1px 0 19px!important}.phone-form label{display:block;font-size:12px;color:#425b7b;font-weight:500;margin-bottom:8px}.input-wrap{display:flex;align-items:center;width:100%;height:47px;border:1px solid #dce5f2;border-radius:4px;background:white;transition:border-color .15s,box-shadow .15s;margin-bottom:18px;overflow:visible}.input-wrap:focus-within{border-color:var(--cloud-blue);box-shadow:0 0 0 3px #1765ff0a}.dial-code{font-size:12px;color:#6f82a0;padding:0 14px;border-right:1px solid #e4ebf5;line-height:18px}.input-wrap input{height:100%;padding:0 13px;border:0;background:transparent;color:#253851;width:100%;min-width:0;outline:none!important;font-size:13px;border-radius:4px}.input-wrap input::placeholder{color:#8b9bb1}.input-wrap:has(input[aria-invalid="true"]){border-color:#c34141}.code-row{margin-bottom:0}.code-row input{width:0;flex:1}.send{height:30px;white-space:nowrap;padding:0 13px;border:0;border-left:1px solid #e4ebf5;color:var(--cloud-blue);background:transparent;font-size:11px}.send:disabled{color:#8798b0}.form-message{min-height:40px;padding:6px 0;display:flex;align-items:center;font-size:11px;line-height:1.5;color:#557aab;overflow-wrap:anywhere}.form-message[data-kind="error"]{color:#bb3636}.submit{min-height:45px;width:100%;border:1px solid var(--cloud-blue);border-radius:4px;display:flex;align-items:center;justify-content:center;gap:10px;background:var(--cloud-blue);color:#fff!important;font-size:13px;font-weight:550;transition:background .15s}.submit:hover{background:#0a51df}.submit:disabled{background:#88adf6;border-color:#88adf6}.submit .icon{width:16px;height:16px}.account-footer{background:#fff;border-top:1px solid #e8eef7;color:#7a8ca6;font-size:10px;min-height:66px}.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:65px}.footer-note{letter-spacing:.5px}
.help-dialog{width:460px;max-width:calc(100vw - 32px);padding:0;border:1px solid #dbe6f4;border-radius:10px;color:var(--cloud-ink);background:white;box-shadow:0 20px 90px #132d5933}.help-dialog::backdrop{background:#1c35574d;backdrop-filter:blur(3px)}.help-content{padding:32px;position:relative}.dialog-close{position:absolute;right:15px;top:15px;width:36px;height:36px;display:grid;place-items:center;border:0;background:transparent;color:#667d9e}.dialog-close:hover{background:#f0f5ff;border-radius:4px}.dialog-kicker{font-size:9px;letter-spacing:1.8px;color:var(--cloud-blue)}.help-content h2{font-size:23px;margin:7px 0 23px}.help-content h3{font-size:13px;margin-top:19px}.help-content p{font-size:12px;line-height:1.9;color:#667d9e;margin-top:7px}.help-done{margin-top:26px}.noscript-message{font-size:12px;color:#b43636;padding:12px 0}
@keyframes cloud-float{0%,100%{transform:translateY(0)}50%{transform:translateY(-9px)}}@keyframes label-float{0%,100%{transform:translateY(0)}50%{transform:translateY(-5px)}}@keyframes chip-sheen{0%,55%{transform:translateX(-130%)}80%,100%{transform:translateX(130%)}}@keyframes spin{to{transform:rotate(360deg)}}.accounts-r51.is-background *{animation-play-state:paused!important}
@media(min-width:1600px){.main-inner{gap:122px;padding-top:72px;padding-bottom:72px}.account-story h1{font-size:54px}.account-story h1 em{font-size:43px}.cloud-art{height:340px;margin-top:18px}.cloud-stack{top:49px}.label-workspace{bottom:34px}}
@media(max-width:1199px){.header-inner,.main-inner,.footer-inner{width:calc(100% - 72px)}.main-inner{grid-template-columns:minmax(0,1fr) 392px;gap:35px}.login-card{padding-left:27px;padding-right:27px}.account-story h1{font-size:42px}.account-story h1 em{font-size:32px}.cloud-art{transform:scale(.87);transform-origin:center left;width:540px;margin-bottom:-10px}.story-principles{gap:15px;font-size:10px}.story-principles .icon{width:13px;height:13px}.label-products{right:22px}.label-workspace{right:25px}}
@media(max-width:1000px){.main-inner{gap:30px;grid-template-columns:minmax(0,1fr) 365px}.account-story h1{font-size:37px}.account-story h1 em{font-size:27px}.story-description{font-size:12px}.cloud-art{transform:scale(.72);transform-origin:top left;width:540px;height:318px;margin:24px 0 -85px -24px}.story-principles{flex-wrap:wrap;gap:10px 16px}.story-principles span:last-child{display:none}.login-card{padding-left:25px;padding-right:25px}.login-card h2{font-size:25px}}
@media(max-width:800px){.account-header{height:68px}.header-inner,.main-inner,.footer-inner{width:calc(100% - 40px)}.main-inner{grid-template-columns:1fr;gap:0;max-width:460px;min-height:calc(100svh - 138px);padding:32px 0 25px}.account-story{display:none}.account-panel{padding:0}.login-card{min-height:562px;padding:29px 29px 0}.header-divider{margin:0 15px}.header-label{font-size:12px}.header-links{gap:16px}.header-links .home-link{display:none}.brand-word{font-size:20px}.brand-mark{width:27px;height:25px}.panel-note{margin-top:18px!important}.footer-inner{min-height:69px;flex-direction:column;justify-content:center;gap:3px;text-align:center}.account-footer{min-height:70px}.footer-note{font-size:9px}.account-main{background:linear-gradient(140deg,#eef5ff,#f8fbff)}.header-links button{font-size:11px}}
@media(max-width:374px){.header-inner,.main-inner,.footer-inner{width:calc(100% - 28px)}.header-label{display:none}.header-divider{margin:0 10px}.login-card{padding:25px 21px 0}.login-card h2{font-size:25px}.login-switch button{font-size:12px}.card-bottom{font-size:9px}.help-content{padding:27px 23px}}
@media(prefers-reduced-motion:reduce){.accounts-r51 *,.accounts-r51 *:before,.accounts-r51 *:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
@media(forced-colors:active){.login-card,.qr-frame,.input-wrap{border:1px solid CanvasText}.submit{border:1px solid ButtonText}.login-switch button.is-on{border-bottom:2px solid Highlight}.art-stage,.cloud-art{display:none}.icon{forced-color-adjust:auto}}