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.72fr}.lg\:flex-row{flex-direction:row}.lg\:items-end{align-items:flex-end}.lg\:items-center{align-items:center}.lg\:gap-10{gap:2.5rem}.lg\:px-10{padding-left:2.5rem;padding-right:2.5rem}.lg\:px-11{padding-left:2.75rem;padding-right:2.75rem}.lg\:py-12{padding-top:3rem;padding-bottom:3rem}.lg\:pb-14{padding-bottom:3.5rem}.lg\:pl-\[276px\]{padding-left:276px}.lg\:pt-10{padding-top:2.5rem}.lg\:text-\[3\.35rem\]{font-size:3.35rem}}@media(min-width:1280px){.xl\:col-span-4{grid-column:span 4 / span 4}.xl\:col-span-8{grid-column:span 8 / span 8}.xl\:ml-auto{margin-left:auto}.xl\:grid-cols-12{grid-template-columns:repeat(12,minmax(0,1fr))}.xl\:grid-cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}.xl\:flex-row{flex-direction:row}.xl\:items-center{align-items:center}.xl\:gap-4{gap:1rem}.xl\:border-l{border-left-width:1px}.xl\:pl-4{padding-left:1rem}}:root{--auth-pine: #123229;--auth-pine-soft: #1b4035;--auth-gold: #dcb978;--auth-ink: #1b2922;--auth-muted: #7c837d;--auth-line: #e4ded1;--auth-paper: #f6f3ec;--auth-card: rgba(255, 255, 255, .92)}#app{position:fixed;inset:0;overflow:hidden;visibility:hidden;opacity:0}body.app-ready #app{position:relative;overflow:visible;visibility:visible;opacity:1;transition:opacity .26s ease}#auth-root[hidden]{display:none!important}body.app-ready #auth-root{display:none}body:not(.app-ready){overflow-x:hidden}.auth-page{position:relative;min-height:100vh;min-height:100dvh;overflow:hidden;background:radial-gradient(circle at 8% 4%,rgba(203,171,113,.18),transparent 28rem),radial-gradient(circle at 94% 86%,rgba(18,50,41,.09),transparent 34rem),var(--auth-paper)}.auth-page-lines{position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(rgba(27,41,34,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(27,41,34,.035) 1px,transparent 1px);background-size:52px 52px;mask-image:linear-gradient(120deg,rgba(0,0,0,.6),transparent 72%);-webkit-mask-image:linear-gradient(120deg,rgba(0,0,0,.6),transparent 72%)}.auth-shell{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1fr) minmax(380px,460px);gap:clamp(2rem,5vw,5rem);align-items:center;width:min(1240px,100%);min-height:100vh;min-height:100dvh;margin:0 auto;padding:32px clamp(20px,4vw,52px)}.auth-shell.is-compact{max-width:980px;grid-template-columns:minmax(0,1fr) minmax(320px,430px)}.auth-story{position:relative;display:flex;flex-direction:column;justify-content:space-between;min-height:min(820px,calc(100dvh - 64px));overflow:hidden;border-radius:34px;padding:42px clamp(28px,4vw,54px) 34px;color:#f8f4eb;background:radial-gradient(circle at 92% 5%,rgba(220,185,120,.16),transparent 24rem),linear-gradient(145deg,#173d32,#102d25 56%,#0a241d);box-shadow:0 34px 90px -56px #123229cc}.auth-story:before{content:"";position:absolute;right:-16%;top:8%;width:58%;aspect-ratio:1;border:1px solid rgba(255,255,255,.075);border-radius:999px;box-shadow:0 0 0 52px #ffffff05,0 0 0 104px #ffffff03;pointer-events:none}.auth-story:after{content:"知识有缝隙，复习有回响。";position:absolute;right:28px;bottom:42px;color:#ffffff0e;font-family:Songti SC,STSong,SimSun,serif;font-size:clamp(24px,3vw,38px);letter-spacing:.12em;writing-mode:vertical-rl;pointer-events:none}.auth-brand{position:relative;z-index:1;display:inline-flex;align-items:center;gap:12px;width:-moz-fit-content;width:fit-content}.auth-logo-mark{display:inline-flex;width:44px;height:44px;align-items:center;justify-content:center;flex:none;border-radius:14px;border:1px solid rgba(220,185,120,.26);color:var(--auth-gold);background:#ffffff0e;box-shadow:0 12px 30px -20px #000000e6}.auth-logo-mark>span{font-family:Songti SC,STSong,SimSun,serif;font-size:23px;line-height:1;font-weight:600}.auth-brand strong{display:block;color:#fcf9f2;font-family:Songti SC,STSong,SimSun,serif;font-size:22px;font-weight:600;letter-spacing:.08em;line-height:1}.auth-brand small{display:block;margin-top:7px;color:#ffffff5c;font-size:8px;font-weight:650;letter-spacing:.21em;line-height:1}.auth-story-copy{position:relative;z-index:1;margin:clamp(46px,8vh,100px) 0 auto;max-width:620px}.auth-story-kicker,.auth-kicker{color:#dcb978b3;font-size:9px;font-weight:700;letter-spacing:.23em;line-height:1.4;text-transform:uppercase}.auth-story h1{margin:22px 0 0;color:#f8f4eb;font-family:Songti SC,STSong,SimSun,"Noto Serif SC",serif;font-size:clamp(38px,4.7vw,60px);font-weight:600;line-height:1.28;letter-spacing:-.035em}.auth-story h1 em{color:var(--auth-gold);font-style:normal}.auth-story-lead{max-width:460px;margin-top:22px;color:#ffffff6e;font-size:12px;line-height:2}.auth-feature-list{display:grid;gap:14px;max-width:470px;margin:34px 0 0;padding:0;list-style:none}.auth-feature-list li{display:flex;align-items:flex-start;gap:12px}.auth-feature-list li>span{margin-top:1px;color:#dcb97873;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:9px;font-weight:700;letter-spacing:.1em}.auth-feature-list strong{display:block;color:#ffffffb8;font-size:11px;font-weight:650}.auth-feature-list small{display:block;margin-top:3px;color:#ffffff4a;font-size:9.5px;line-height:1.6}.auth-quote{position:relative;z-index:1;max-width:420px;margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.08)}.auth-quote p{color:#fff6;font-family:Songti SC,STSong,SimSun,serif;font-size:12px;letter-spacing:.1em;line-height:1.85}.auth-quote span{display:block;margin-top:6px;color:#ffffff2b;font-size:8.5px;letter-spacing:.16em}.auth-panel{min-width:0}.auth-card{position:relative;width:100%;overflow:hidden;border:1px solid rgba(228,222,209,.9);border-radius:28px;background:var(--auth-card);padding:clamp(24px,3.3vw,38px);box-shadow:0 40px 90px -62px #1232298c,0 1px #fffc inset;animation:auth-card-in .42s cubic-bezier(.22,.8,.32,1) both}@keyframes auth-card-in{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.auth-card-centered{text-align:center;padding-top:52px;padding-bottom:52px}.auth-mobile-brand{display:none;align-items:center;gap:10px;margin-bottom:28px;color:var(--auth-pine);font-family:Songti SC,STSong,SimSun,serif;font-size:20px;font-weight:600}.auth-mobile-brand .auth-logo-mark{width:36px;height:36px;border:0;border-radius:11px;background:var(--auth-pine);color:var(--auth-gold)}.auth-mobile-brand .auth-logo-mark>span{font-size:18px}.auth-mobile-brand small{margin-left:4px;color:#1b292257;font-family:inherit;font-size:7px;letter-spacing:.16em;vertical-align:2px}.auth-heading{margin:12px 0 0;color:var(--auth-ink);font-family:Songti SC,STSong,SimSun,"Noto Serif SC",serif;font-size:clamp(27px,3vw,34px);font-weight:600;letter-spacing:-.03em;line-height:1.2}.auth-card-centered .auth-heading{font-size:22px}.auth-subheading{margin-top:10px;color:#1b29226e;font-size:11px;line-height:1.9}.auth-message{display:none;margin-top:16px;border:1px solid rgba(228,222,209,.9);border-radius:12px;background:#f6f3ecb3;padding:10px 12px;color:#1b29228c;font-size:10.5px;line-height:1.7}.auth-message:not(:empty){display:block}.auth-message.is-error{border-color:#ecd8cf;background:#f8ece7;color:#98503c}.auth-message.is-success{border-color:#d7e6dc;background:#edf4ef;color:#2b624f}.auth-form{margin-top:22px}.auth-label{display:block;margin:13px 0 7px;color:#1b29229e;font-size:10.5px;font-weight:650;letter-spacing:.03em}.auth-form label:first-of-type{margin-top:0}.auth-phone-field,.auth-code-row{display:flex;align-items:stretch;overflow:hidden;border:1px solid #ddd6c8;border-radius:13px;background:#fff;transition:border-color .16s ease,box-shadow .16s ease}.auth-phone-field:focus-within,.auth-code-row:focus-within{border-color:#8caf9f;box-shadow:0 0 0 3px #214b3e13}.auth-prefix{display:flex;align-items:center;flex:none;border-right:1px solid #ece6db;padding:0 13px;color:#1b29226e;font-size:12px;font-variant-numeric:tabular-nums}.auth-phone-field input,.auth-code-input{width:100%;min-width:0;border:0;outline:0;background:transparent;padding:13px 14px;color:var(--auth-ink);font-size:16px;line-height:1.4}.auth-phone-field input::-moz-placeholder,.auth-code-input::-moz-placeholder{color:#1b292247}.auth-phone-field input::placeholder,.auth-code-input::placeholder{color:#1b292247}.auth-code-button{flex:none;margin:4px;border:1px solid #e2ddd2;border-radius:10px;background:#f8f6f0;padding:0 13px;color:#2c5e4d;font-size:10.5px;font-weight:650;white-space:nowrap;transition:background-color .15s ease,border-color .15s ease}.auth-code-button:hover:not(:disabled){border-color:#bcd2c5;background:#edf3ef}.auth-code-button:disabled{color:#1b29224d;cursor:not-allowed}.auth-primary-button{display:flex;width:100%;min-height:48px;align-items:center;justify-content:center;gap:9px;margin-top:20px;border:1px solid #123229;border-radius:13px;background:#123229;padding:0 18px;color:#fcf9f1;font-size:12px;font-weight:650;transition:background-color .16s ease,transform .16s ease,opacity .16s ease}.auth-primary-button svg{width:16px;height:16px}.auth-primary-button:hover:not(:disabled){background:#1b4338}.auth-primary-button:active:not(:disabled){transform:scale(.99)}.auth-primary-button:disabled{opacity:.64;cursor:not-allowed}.auth-primary-button.is-loading:before{content:"";width:14px;height:14px;flex:none;border:2px solid rgba(255,255,255,.28);border-top-color:#fff;border-radius:999px;animation:auth-spin .85s linear infinite}.auth-helper{margin-top:9px;color:#1b29224d;font-size:9px;line-height:1.7}.auth-divider{display:flex;align-items:center;gap:12px;margin:24px 0 17px;color:#1b292245;font-size:9px;white-space:nowrap}.auth-divider:before,.auth-divider:after{content:"";width:100%;height:1px;background:#ece7dd}.auth-oauth-grid{display:grid;grid-template-columns:1fr 1fr;gap:9px}.auth-oauth-button{display:flex;min-height:44px;align-items:center;justify-content:center;gap:8px;border:1px solid #e1dbcf;border-radius:12px;background:#fff;padding:0 10px;color:#1b2922b3;font-size:11px;font-weight:600;transition:border-color .15s ease,background-color .15s ease,transform .15s ease}.auth-oauth-button:hover:not(:disabled){background:#fbfaf6;transform:translateY(-1px)}.auth-oauth-button:disabled{opacity:.5;cursor:not-allowed}.auth-oauth-button-wechat:hover:not(:disabled){border-color:#07c1605c}.auth-oauth-button-qq:hover:not(:disabled){border-color:#12b7f557}.auth-oauth-glyph{display:flex;width:22px;height:22px;align-items:center;justify-content:center;border-radius:7px;flex:none}.auth-oauth-glyph svg{width:19px;height:19px}.auth-oauth-glyph-wechat{color:#0fa968;background:#07c16014}.auth-oauth-glyph-qq{color:#1d9bd1;background:#12b7f514}.auth-legal{margin-top:20px;padding-top:15px;border-top:1px solid #efebe2;color:#1b292245;font-size:8.5px;line-height:1.75}.auth-page-foot{margin-top:16px;color:#1b292247;font-size:9px;text-align:center;letter-spacing:.04em}.auth-spinner{width:34px;height:34px;margin:0 auto 24px;border:2px solid rgba(33,75,62,.12);border-top-color:#2c5e4d;border-radius:999px;animation:auth-spin .85s linear infinite}@keyframes auth-spin{to{transform:rotate(360deg)}}.auth-sync-mark{position:relative;display:flex;width:52px;height:52px;align-items:center;justify-content:center;margin:0 auto 24px;border:1px solid #dce7df;border-radius:18px;color:#2c5e4d;background:#f0f5f2}.auth-sync-mark>span{position:absolute;inset:-5px;border:1px solid rgba(197,162,92,.35);border-radius:22px;animation:auth-pulse-ring 1.8s ease-out infinite}.auth-sync-mark svg{width:23px;height:23px}@keyframes auth-pulse-ring{0%{opacity:.5;transform:scale(.96)}80%,to{opacity:0;transform:scale(1.08)}}.auth-progress{width:100%;height:4px;margin-top:24px;overflow:hidden;border-radius:999px;background:#efeae0}.auth-progress>span{display:block;width:38%;height:100%;border-radius:inherit;background:linear-gradient(90deg,#cdb376,#a88442);animation:auth-progress-move 1.5s ease-in-out infinite}@keyframes auth-progress-move{0%{transform:translate(-110%)}60%,to{transform:translate(270%)}}.auth-codebox{margin-top:20px;border:1px solid #e8e1d5;border-radius:14px;background:#f8f5ee;padding:14px;color:#1b292285;font-size:10.5px;line-height:1.8;text-align:left}.auth-codebox p{margin:0}.auth-codebox p+p{margin-top:9px}.auth-codebox code,.auth-fineprint code{border-radius:4px;background:#1232290e;padding:1px 4px;color:#2c5e4d;font-size:.95em}.auth-codebox pre{overflow-x:auto;margin:10px 0;border-radius:9px;background:#102d25;padding:12px;color:#e8d4ab;font-size:10px;line-height:1.7;white-space:pre-wrap}.auth-fineprint{margin-top:16px;color:#1b29224d;font-size:9px;line-height:1.8;text-align:left}@media(max-width:1023px){.auth-shell,.auth-shell.is-compact{grid-template-columns:minmax(0,520px);justify-content:center;align-items:center;min-height:100vh;min-height:100dvh;padding:28px 20px}.auth-story{display:none}.auth-mobile-brand{display:flex}.auth-panel{width:100%}}@media(max-width:480px){.auth-shell{padding:0;align-items:stretch;min-height:100vh;min-height:100dvh}.auth-panel{display:flex;flex-direction:column;justify-content:center;min-height:100vh;min-height:100dvh;padding:max(20px,env(safe-area-inset-top)) 16px max(20px,env(safe-area-inset-bottom))}.auth-card{border-radius:24px;padding:24px 20px}.auth-card-centered{padding-top:38px;padding-bottom:38px}.auth-heading{font-size:27px}.auth-page-foot{margin-top:12px}.auth-story h1{font-size:34px}}@media(prefers-reduced-motion:reduce){.auth-card,.auth-spinner,.auth-sync-mark>span,.auth-progress>span,.auth-primary-button.is-loading:before{animation:none!important}}