:root{--primary: #19c8b9;--primary-hover: #3dd4c6;--primary-active: #11a89b;--primary-bg: #e6f9f6;--teal-dark: #0e9489;--text: #794f27;--text-body: #725d42;--text-secondary: #9f927d;--text-muted: #8a7b66;--bg: #f8f8f0;--bg-content: #f7f3df;--bg-disabled: #ece8dc;--border: #c4b89e;--border-hover: #a89878;--border-strong: #9f927d;--success: #6fba2c;--warning: #f5c31c;--error: #e05a5a;--error-active: #c94444;--focus-yellow: #ffcc00;--orange: #f97316;--orange-active: #ea580c;--shadow-btn: #bdaea0;--shadow-input: #d4c9b4;--r-sm: 12px;--r-base: 18px;--r-lg: 24px;--r-pill: 50px;--ease: cubic-bezier(.4, 0, .2, 1)}*{box-sizing:border-box}html,body{margin:0;padding:0;background:var(--bg)}body{font-family:Nunito,Noto Sans SC,-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;font-weight:500;letter-spacing:.01em;color:var(--text-body);-webkit-font-smoothing:antialiased}button{font-family:inherit}.muted{opacity:.55}.btn{font-size:14px;font-weight:700;letter-spacing:.02em;border-radius:var(--r-pill);padding:12px 22px;border:2px solid transparent;cursor:pointer;transition:transform .15s var(--ease),box-shadow .15s var(--ease),opacity .15s var(--ease)}.btn:active:not(:disabled){transform:translateY(2px)}.btn:disabled{opacity:.55;cursor:not-allowed;box-shadow:none}.btn.primary{background:var(--primary);color:#fff;border-color:var(--primary);box-shadow:0 5px 0 0 var(--teal-dark)}.btn.primary:active:not(:disabled){box-shadow:0 1px 0 0 var(--teal-dark)}.btn.orange{background:var(--orange);color:#fff;border-color:var(--orange);box-shadow:0 4px 0 0 var(--orange-active)}.btn.orange:active:not(:disabled){box-shadow:0 1px 0 0 var(--orange-active)}.btn.default{background:var(--bg-content);color:var(--text-body);border-color:var(--border-strong)}.btn.danger{background:#fdeceb;color:var(--error);border-color:var(--error)}.input{width:100%;padding:12px 14px;font-size:14px;color:var(--text);background:#fffdf5;border:1.5px solid var(--border);border-radius:var(--r-sm);outline:none;transition:border-color .2s var(--ease)}.input:focus{border-color:var(--primary)}.input::placeholder{color:var(--text-muted);opacity:.7}.card-surface{background:var(--bg-content);border:1.5px solid var(--border);border-radius:var(--r-base)}.page-shell{min-height:100vh;padding:12px 12px 120px;background:var(--bg)}.headline-row{display:flex;align-items:center;gap:12px;font-size:28px;font-weight:900;letter-spacing:.02em;color:var(--text)}.headline-ai{background:linear-gradient(120deg,#0e9489,#19c8b9 60%,#f5c31c);-webkit-background-clip:text;background-clip:text;color:transparent}.headline-under{position:relative}.headline-under:after{content:"";position:absolute;left:0;right:2px;bottom:3px;height:8px;background:linear-gradient(90deg,rgba(25,200,185,.32),rgba(249,115,22,.22),transparent);border-radius:6px;z-index:-1}.sub-row{display:flex;align-items:center;gap:9px;margin-top:10px;padding-left:2px;color:var(--text-secondary);font-size:13px;letter-spacing:.05em}.sub-dot{width:6px;height:6px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--focus-yellow));box-shadow:0 0 0 3px #19c8b924;flex-shrink:0}