:root{--blue:#1167ff;--blue2:#35b8ff;--ink:#0b1b38;--muted:#7a879e;--line:#edf2f8;--bg:#f5f8ff;--card:#fff;--shadow:0 18px 45px rgba(25,91,180,.12)}*{box-sizing:border-box}body{margin:0;background:linear-gradient(180deg,#eaf4ff 0,#f7f9fe 38%,#fff 100%);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink)}a{text-decoration:none;color:inherit}button,input,select{font:inherit}.phone-shell{max-width:430px;min-height:100vh;margin:0 auto;background:var(--bg);position:relative;overflow:hidden;box-shadow:0 0 0 1px rgba(17,103,255,.04)}.with-tab{padding-bottom:86px}.hero-page,.auth-page{min-height:100vh;padding:28px 20px;display:flex;flex-direction:column;justify-content:center}.brand-line{display:flex;align-items:center;gap:12px;margin-bottom:28px}.brand-line 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