:root{color:#171619;font-synthesis:none;text-rendering:optimizelegibility;--page-bg:#e8e7e6;--surface:#fff;--ink:#171619;--muted:#69656a;--faint:#8a858a;--line:#dedbdd;--accent:#dc6f43;--accent-deep:#a94c2d;--danger:#a8372b;--button:#111019;--focus:#a94c2d;--radius-shell:16px;--radius-card:14px;--radius-control:8px;--z-dialog:20;background:#e8e7e6;font-family:-apple-system,BlinkMacSystemFont,SF Pro Display,PingFang SC,Microsoft YaHei,sans-serif}*{box-sizing:border-box}html{background:var(--page-bg);min-width:320px}body{background:var(--page-bg);min-width:320px;min-height:100dvh;margin:0}button,input,textarea{font:inherit}button{color:inherit}button,label,input[type=checkbox]{-webkit-tap-highlight-color:transparent}button:focus-visible,input:focus-visible{outline:3px solid color-mix(in srgb, var(--focus) 32%, transparent);outline-offset:2px}.page-shell{align-content:center;place-items:center;gap:18px;min-height:100dvh;padding:36px 32px 24px;display:grid;overflow:hidden}.auth-shell{border-radius:var(--radius-shell);background:var(--surface);grid-template-columns:minmax(0,1.03fr) minmax(430px,.97fr);width:min(1180px,100vw - 64px);min-height:min(750px,100dvh - 102px);display:grid;overflow:hidden;box-shadow:0 22px 52px #6f584f24}.page-footnote{color:#777277;letter-spacing:.01em;margin:0;font-size:12px}.brand-scene{--pointer-x:0;--pointer-y:0;isolation:isolate;color:#221612;background:#efbda9;min-height:680px;padding:34px 38px 40px;position:relative;overflow:hidden}.gradient-field{z-index:-2;contain:paint;transform:translate3d(calc(var(--pointer-x) * -7px), calc(var(--pointer-y) * -7px), 0);transition:transform .9s cubic-bezier(.16,1,.3,1);position:absolute;inset:-14%}.gradient-field:after{content:"";background:linear-gradient(#ffffff1f,#0000 36%,#d5502d14);position:absolute;inset:0}.glow{filter:none;opacity:.88;transform-origin:50%;will-change:transform, opacity;border-radius:0;display:block;position:absolute;inset:-16%}.glow--peach{background:radial-gradient(64% 58% at 27% 22%,#f9dad0fa 0%,#f9dad0b8 38%,#0000 72%);animation:8s linear infinite drift-peach}.glow--coral{background:radial-gradient(62% 64% at 23% 82%,#f47f51fa 0%,#f47f51bd 40%,#0000 72%);animation:7s linear infinite drift-coral}.glow--apricot{background:radial-gradient(62% 66% at 78% 76%,#ffd28f 0%,#ffd28fc7 42%,#0000 74%);animation:9s linear infinite drift-apricot}.glow--light{opacity:.74;background:radial-gradient(58% 54% at 74% 14%,#fff4ecf5 0%,#fff4ecad 40%,#0000 72%);animation:10s linear infinite drift-light}@keyframes drift-peach{0%,to{opacity:.84;transform:translate(-100px,-70px)scaleX(1.03)}35%{opacity:.94;transform:translate(150px,90px)scale(1.12,.96)}70%{opacity:.88;transform:translate(40px,150px)scaleY(1.1)}}@keyframes drift-coral{0%,to{opacity:.88;transform:translate(-120px,140px)scale(1.04,.98)}33%{opacity:.96;transform:translate(150px,50px)scale(1.12,1.04)}66%{opacity:.9;transform:translate(50px,-150px)scale(.98,1.12)}}@keyframes drift-apricot{0%,to{opacity:.86;transform:translate(130px,100px)scaleY(1.04)}33%{opacity:.96;transform:translate(-100px,150px)scale(1.1,.98)}66%{opacity:.9;transform:translate(-160px,-60px)scale(1.02,1.12)}}@keyframes drift-light{0%,to{opacity:.66;transform:translate(100px,-140px)scaleX(1.04)}33%{opacity:.8;transform:translate(-150px,40px)scale(.98,1.1)}66%{opacity:.72;transform:translate(-50px,150px)scale(1.1,1.02)}}.brand-wordmark{z-index:2;align-items:center;gap:9px;font-weight:700;display:flex;position:relative}.brand-wordmark__cn{letter-spacing:.03em;font-size:18px}.brand-wordmark__en{color:#221612a6;letter-spacing:.12em;margin-left:2px;font-size:10px;font-weight:700}.scene-preview{z-index:1;width:min(440px,78%);transform:translate3d(calc(-50% + var(--pointer-x) * 10px), calc(var(--pointer-y) * 8px), 0);transition:transform .9s cubic-bezier(.16,1,.3,1);position:absolute;top:22%;left:50%}.strategy-card{border-radius:var(--radius-card);-webkit-backdrop-filter:blur(18px)saturate(115%);background:#ffffffd6;width:100%;padding:22px;animation:6.4s ease-in-out infinite float-card;box-shadow:0 16px 36px #7d3a232e}.strategy-card__topline{border-bottom:1px solid #4e2e241f;justify-content:space-between;align-items:flex-start;padding-bottom:16px;display:flex}.strategy-card__topline p{letter-spacing:-.02em;margin:0 0 5px;font-size:17px;font-weight:720}.strategy-card__topline span{color:#6b534c;font-size:12px}.strategy-card__topline svg{color:var(--accent)}.strategy-facts{grid-template-columns:1fr 1fr;gap:12px;padding:16px 0;display:grid}.strategy-fact{align-items:center;gap:9px;min-width:0;display:flex}.strategy-fact svg{color:#6e5046;flex:none}.strategy-fact span,.strategy-note>span{color:#766159;margin-bottom:3px;font-size:10px;display:block}.strategy-fact strong{text-overflow:ellipsis;white-space:nowrap;font-size:11px;font-weight:650;display:block;overflow:hidden}.strategy-note{background:#ed6f441a;border-radius:10px;padding:13px 14px}.strategy-note p{color:#402b25;margin:0;font-size:12px;line-height:1.55}.analysis-status{color:#5d443d;grid-template-columns:auto max-content 1fr;align-items:center;gap:8px;padding-top:16px;font-size:11px;display:grid}.analysis-status>span{animation:.36s cubic-bezier(.16,1,.3,1) status-enter}.status-dot{background:#d5633c;border-radius:50%;width:6px;height:6px;box-shadow:0 0 0 4px #d5633c1f}.status-line{background:#5d443d1a;height:2px;overflow:hidden}.status-line i{background:#d5633c;height:100%;transition:width .6s cubic-bezier(.16,1,.3,1);display:block}.floating-insight{-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#ffffffe6;border-radius:10px;min-width:130px;padding:11px 13px;position:absolute;box-shadow:0 10px 22px #7c3c2724}.floating-insight span{color:#80655d;margin-bottom:4px;font-size:9px;display:block}.floating-insight strong{font-size:11px;font-weight:680}.floating-insight--audience{animation:5.8s ease-in-out .4s infinite float-small;top:-32px;right:-34px}.floating-insight--hook{animation:6.2s ease-in-out .9s infinite float-small;bottom:-28px;left:-38px}@keyframes float-card{50%{transform:translateY(-7px)}}@keyframes float-small{50%{transform:translateY(-5px)}}@keyframes status-enter{0%{opacity:0;transform:translateY(4px)}}.brand-message{z-index:2;max-width:470px;position:absolute;bottom:44px;left:38px;right:38px}.brand-message p{color:#49312b;margin:0 0 10px;font-size:12px;font-weight:600}.brand-message h2{color:#211612;letter-spacing:-.035em;text-wrap:balance;max-width:13ch;margin:0;font-size:clamp(32px,3.05vw,43px);font-weight:720;line-height:1.12}.auth-surface{background:#fff;place-items:center;min-width:0;min-height:100%;padding:46px 56px;display:grid}.auth-panel{width:min(100%,382px);position:relative}.auth-panel__inner{width:100%}.auth-heading{margin-bottom:27px}.auth-heading h1{color:var(--ink);letter-spacing:-.035em;margin:0 0 9px;font-size:clamp(30px,2.4vw,36px);font-weight:730;line-height:1.08}.auth-heading p{max-width:36ch;color:var(--muted);text-wrap:pretty;margin:0;font-size:13px;line-height:1.55}.auth-form{gap:14px;display:grid}.auth-form label{color:#403b40;gap:7px;font-size:13px;font-weight:620;display:grid}.auth-form input{border:1px solid var(--line);border-radius:var(--radius-control);width:100%;min-height:46px;color:var(--ink);background:#fff;padding:0 12px}.auth-form input::placeholder{color:var(--faint)}.code-field{grid-template-columns:minmax(0,1fr) auto;align-items:end;gap:8px;display:grid}.code-field>label{min-width:0}.send-code-control .text-button{white-space:nowrap;min-height:38px}.primary-button,.text-button{border-radius:var(--radius-control);cursor:pointer;border:0}.primary-button{background:var(--button);color:#fff;min-height:46px;padding:0 16px;font-weight:680}.primary-button:disabled,.text-button:disabled{cursor:not-allowed;opacity:.55}.text-button{color:var(--accent-deep);background:0 0;padding:2px 0;font-size:13px;font-weight:650}.auth-links{justify-content:space-between;gap:16px;display:flex}.auth-switch{color:var(--muted);text-align:center;margin:2px 0 0;font-size:13px}.auth-switch .text-button{margin-left:5px}.form-message{min-height:18px;color:var(--danger);margin:-4px 0 0;font-size:12px;line-height:1.45}.session-loading,.admin-foundation{text-align:center;place-content:center;gap:14px;min-height:100dvh;padding:28px;display:grid}.session-loading span{border:3px solid #a94c2d38;border-top-color:var(--accent-deep);border-radius:50%;width:28px;height:28px;margin:auto;animation:.8s linear infinite auth-spin}.session-loading p,.admin-foundation p{color:var(--muted);margin:0}.admin-foundation section{border-radius:var(--radius-card);background:var(--surface);max-width:440px;padding:32px;box-shadow:0 18px 42px #6f584f1f}.admin-foundation h1{color:var(--ink);margin:4px 0 10px}.eyebrow{font-size:12px;font-weight:700;color:var(--accent-deep)!important}@keyframes auth-spin{to{transform:rotate(1turn)}}@media (width<=980px){.page-shell{padding-inline:24px}.auth-shell{grid-template-columns:minmax(0,.9fr) minmax(410px,1.1fr);width:min(940px,100vw - 48px)}.brand-scene{padding-inline:30px}.scene-preview{width:82%}.floating-insight--audience{right:-18px}.floating-insight--hook{left:-18px}.brand-message{left:30px;right:30px}.auth-surface{padding-inline:42px}}@media (width<=760px){.page-shell{padding:16px;display:block;overflow:visible}.auth-shell{grid-template-columns:1fr;width:100%;min-height:0;overflow:hidden}.auth-surface{grid-row:1;min-height:650px;padding:44px 28px 50px}.brand-scene{grid-row:2;min-height:520px;padding:28px 26px 34px}.scene-preview{width:min(420px,80%);top:25%}.brand-message{bottom:32px;left:26px;right:26px}.brand-message h2{max-width:14ch;font-size:clamp(29px,8vw,38px)}.page-footnote{text-align:center;margin:15px 0 3px}}@media (width<=460px){.page-shell{padding:0}.auth-shell{box-shadow:none;border-radius:0}.auth-surface{min-height:100dvh;padding:42px 22px 48px}.auth-heading{margin-bottom:24px}.auth-heading h1{font-size:31px}.brand-scene{min-height:500px;padding-inline:22px}.strategy-card{padding:17px}.strategy-facts{grid-template-columns:1fr}.floating-insight{display:none}.brand-message{left:22px;right:22px}.page-footnote{display:none}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}.gradient-field,.scene-preview{transform:none}}@media (prefers-reduced-transparency:reduce){.strategy-card,.floating-insight{-webkit-backdrop-filter:none;backdrop-filter:none;background:#fff}}