body {
      min-height: 100vh;
      background: linear-gradient(135deg, #FFF0F5 0%, #FFE4EE 30%, #F0E6FF 70%, #E6F7FF 100%);
      position: relative; overflow: hidden; margin: 0;
    }
    [data-theme="dark"] body {
      background: linear-gradient(135deg, #0F1218 0%, #161B26 35%, #182030 70%, #111722 100%);
    }

    .kawaii-star {
      position: fixed; pointer-events: none; font-size: 1.2rem;
      opacity: 0.5; animation: kawaiiFloat 6s ease-in-out infinite; z-index: 0;
    }
    .kawaii-star:nth-child(1) { top: 8%; left: 10%; animation-delay: 0s; font-size: 1.5rem; }
    .kawaii-star:nth-child(2) { top: 15%; right: 15%; animation-delay: 1s; }
    .kawaii-star:nth-child(3) { bottom: 20%; left: 8%; animation-delay: 2s; font-size: 1rem; }
    .kawaii-star:nth-child(4) { bottom: 10%; right: 12%; animation-delay: 0.5s; font-size: 1.8rem; }
    .kawaii-star:nth-child(5) { top: 45%; left: 5%; animation-delay: 1.5s; }
    .kawaii-star:nth-child(6) { top: 40%; right: 8%; animation-delay: 2.5s; font-size: 0.9rem; }
    .kawaii-star:nth-child(7) { top: 70%; left: 50%; animation-delay: 3s; font-size: 1.1rem; }
    @keyframes kawaiiFloat {
      0%, 100% { transform: translateY(0) rotate(0deg); opacity: 0.4; }
      50% { transform: translateY(-15px) rotate(15deg); opacity: 0.7; }
    }
    [data-theme="dark"] .kawaii-star { opacity: 0.25; }

    .login-orb {
      position: fixed; border-radius: 50%; filter: blur(100px);
      pointer-events: none; opacity: 0.3; z-index: 0;
    }
    .login-orb:nth-child(8) {
      width: 350px; height: 350px; background: #FFB6C1;
      top: -120px; right: -80px;
      animation: orbFloat1 12s ease-in-out infinite;
    }
    .login-orb:nth-child(9) {
      width: 280px; height: 280px; background: #DDA0DD;
      bottom: -100px; left: -60px;
      animation: orbFloat2 10s ease-in-out infinite;
    }
    .login-orb:nth-child(10) {
      width: 180px; height: 180px; background: #87CEEB;
      top: 30%; left: 55%;
      animation: orbFloat3 14s ease-in-out infinite;
    }
    [data-theme="dark"] .login-orb:nth-child(8) { background: #8B3A62; }
    [data-theme="dark"] .login-orb:nth-child(9) { background: #553C7B; }
    [data-theme="dark"] .login-orb:nth-child(10) { background: #2C5F7A; }
    @keyframes orbFloat1 {
      0%, 100% { transform: translate(0, 0) scale(1); }
      50% { transform: translate(30px, 25px) scale(1.08); }
    }
    @keyframes orbFloat2 {
      0%, 100% { transform: translate(0, 0) scale(1); }
      50% { transform: translate(-20px, -30px) scale(1.12); }
    }
    @keyframes orbFloat3 {
      0%, 100% { transform: translate(0, 0) scale(1); opacity: 0.25; }
      50% { transform: translate(15px, -15px) scale(1.15); opacity: 0.4; }
    }

    .login-page {
      min-height: 100vh; display: flex; align-items: center; justify-content: center;
      padding: 20px; position: relative; z-index: 1;
    }

    .login-card {
      width: 100%; max-width: 400px;
      background: rgba(255,255,255,0.85);
      backdrop-filter: blur(24px) saturate(180%);
      -webkit-backdrop-filter: blur(24px) saturate(180%);
      border: 1px solid rgba(255,255,255,0.4);
      border-radius: 28px; padding: 38px 34px;
      box-shadow: 0 20px 60px rgba(255,107,157,0.12), 0 0 0 1px rgba(255,255,255,0.5) inset;
      position: relative; z-index: 1;
      animation: cardIn 0.5s ease-out;
    }
    [data-theme="dark"] .login-card {
      background: rgba(30,20,40,0.85);
      border-color: rgba(255,255,255,0.08);
      box-shadow: 0 20px 60px rgba(0,0,0,0.3);
    }
    @keyframes cardIn {
      from { opacity: 0; transform: translateY(20px) scale(0.97); }
      to { opacity: 1; transform: translateY(0) scale(1); }
    }

    .login-header { text-align: center; margin-bottom: 28px; }
    .login-header .login-emoji { font-size: 2.5rem; margin-bottom: 10px; display: block; }
    .login-title {
      font-size: 1.35rem; font-weight: 700;
      background: linear-gradient(135deg, #FF6B9D, #A78BFA);
      -webkit-background-clip: text; -webkit-text-fill-color: transparent;
      background-clip: text; margin: 0 0 4px;
    }
    [data-theme="dark"] .login-title {
      background: linear-gradient(135deg, #FF8FB1, #C4A5FF);
      -webkit-background-clip: text; -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    .login-subtitle { font-size: 0.82rem; color: #999; margin: 0; }
    [data-theme="dark"] .login-subtitle { color: rgba(255,255,255,0.4); }

    .form-group { margin-bottom: 14px; }
    .input-wrap {
      display: flex; align-items: center;
      border: 1.5px solid #F0E6FF; border-radius: 14px;
      background: rgba(255,255,255,0.7);
      transition: all 0.25s;
    }
    .input-wrap:focus-within {
      border-color: #D8B4FE;
      box-shadow: 0 0 0 3px rgba(216,180,254,0.15);
      background: #fff;
    }
    [data-theme="dark"] .input-wrap {
      background: rgba(255,255,255,0.06);
      border-color: rgba(255,255,255,0.1);
    }
    [data-theme="dark"] .input-wrap:focus-within {
      border-color: rgba(167,139,250,0.4);
      box-shadow: 0 0 0 3px rgba(167,139,250,0.1);
      background: rgba(255,255,255,0.1);
    }
    .input-wrap .input-icon {
      width: 40px; flex-shrink: 0; text-align: center;
      font-size: 1rem; opacity: 0.4; line-height: 1; user-select: none;
    }
    .form-input {
      flex: 1; padding: 13px 14px 13px 6px;
      border: none; background: transparent;
      font-size: 0.938rem; outline: none; font-family: inherit;
      color: #333;
    }
    .form-input::placeholder { color: #ccc; }
    [data-theme="dark"] .form-input { color: #eee; }
    [data-theme="dark"] .form-input::placeholder { color: rgba(255,255,255,0.25); }
    .form-input::placeholder { color: #ccc; }

    .login-captcha-group {
      display: none; gap: 10px; align-items: center; margin-bottom: 14px;
    }
    .login-captcha-group.show { display: flex; }
    .login-captcha-input { flex: 1; }
    .login-captcha-img {
      height: 44px; min-width: 100px; border-radius: 12px; cursor: pointer;
      border: 1.5px solid #F0E6FF; transition: border-color 0.3s;
    }
    .login-captcha-img:hover { border-color: #D8B4FE; }
    [data-theme="dark"] .login-captcha-img { border-color: rgba(255,255,255,0.1); }

    .login-remember {
      display: flex; align-items: center; gap: 8px;
      margin-bottom: 18px; font-size: 0.85rem;
      color: #aaa; cursor: pointer; user-select: none;
    }
    .login-remember input[type="checkbox"] { width: 16px; height: 16px; accent-color: #A78BFA; cursor: pointer; }
    [data-theme="dark"] .login-remember { color: rgba(255,255,255,0.4); }

    .login-error {
      display: none; padding: 10px 14px; margin-bottom: 14px;
      background: rgba(255,107,157,0.08);
      border: 1px solid rgba(255,107,157,0.15);
      border-radius: 12px; color: #FF6B9D; font-size: 0.85rem; text-align: center;
      white-space: pre-line;
    }
    .login-error.show { display: block; }
    [data-theme="dark"] .login-error {
      background: rgba(255,107,157,0.1); color: #FF8FB1;
    }

    .login-btn {
      width: 100%; padding: 14px; border-radius: 14px; border: none;
      background: linear-gradient(135deg, #FF9A9E, #FAD0C4, #A18CD1);
      background-size: 200% 200%; color: #fff; font-size: 1rem;
      font-weight: 600; cursor: pointer; transition: all 0.3s;
      font-family: inherit; letter-spacing: 1px; position: relative;
      overflow: hidden; min-height: 48px;
      animation: gradientShift 4s ease-in-out infinite;
    }
    @keyframes gradientShift {
      0%, 100% { background-position: 0% 50%; }
      50% { background-position: 100% 50%; }
    }
    .login-btn:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(161,140,209,0.35); }
    .login-btn:active { transform: translateY(0); }
    .login-btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; box-shadow: none; }
    .login-btn .spinner {
      display: none; width: 20px; height: 20px;
      border: 2px solid rgba(255,255,255,0.3);
      border-top-color: #fff; border-radius: 50%;
      animation: spin 0.6s linear infinite; margin: 0 auto;
    }
    .login-btn.loading .btn-text { display: none; }
    .login-btn.loading .spinner { display: block; }
    @keyframes spin { to { transform: rotate(360deg); } }

    .login-footer { text-align: center; margin-top: 18px; }
    .login-footer a {
      font-size: 0.82rem; color: #ccc; text-decoration: none; transition: color 0.2s;
    }
    .login-footer a:hover { color: #FF6B9D; }

    .login-links { text-align: center; margin-top: 16px; display: flex; justify-content: center; gap: 16px; }
    .login-links a { font-size: 0.82rem; color: #ccc; text-decoration: none; transition: color 0.2s; }
    .login-links a:hover { color: #FF6B9D; }

    @media (max-width: 480px) {
      .login-card { padding: 28px 22px; border-radius: 24px; }
      .login-header .login-emoji { font-size: 2rem; }
      .login-title { font-size: 1.15rem; }
      .login-btn { padding: 12px; font-size: 0.95rem; min-height: 44px; }
      .login-captcha-img { min-width: 80px; height: 40px; }
    }

    html,
    body {
      width: 100%;
      min-width: 0;
      max-width: 100%;
      overflow-x: hidden;
      overflow-x: clip;
    }

    body.login-page-shell {
      min-height: 100svh;
    }

    body.login-page-shell .login-page {
      box-sizing: border-box;
      min-height: 100svh;
      padding: calc(var(--navbar-height, 64px) + 20px) 16px 32px;
    }

    body.login-page-shell .login-card {
      box-sizing: border-box;
      width: min(100%, 420px);
      min-width: 0;
    }

    body.login-page-shell .input-wrap,
    body.login-page-shell .login-error,
    body.login-page-shell .login-remember,
    body.login-page-shell .login-links,
    body.login-page-shell .login-footer {
      min-width: 0;
    }

    body.login-page-shell .form-input,
    body.login-page-shell .login-captcha-input {
      min-width: 0;
      width: 100%;
      box-sizing: border-box;
    }

    body.login-page-shell .login-captcha-group.show {
      display: grid;
      grid-template-columns: minmax(0, 1fr) minmax(82px, 100px);
      align-items: center;
    }

    body.login-page-shell .login-captcha-img {
      display: block;
      width: 100%;
      min-width: 0;
      max-width: 100px;
      object-fit: cover;
      box-sizing: border-box;
    }

    body.login-page-shell .login-error {
      overflow-wrap: anywhere;
      word-break: break-word;
    }

    body.login-page-shell .login-btn,
    body.login-page-shell .login-links a,
    body.login-page-shell .login-footer a {
      max-width: 100%;
    }

    @media (max-width: 480px) {
      body.login-page-shell .login-page {
        align-items: flex-start;
        padding: calc(var(--navbar-height, 58px) + 14px) 12px 28px;
      }

      body.login-page-shell .login-card {
        padding: 26px 18px;
        border-radius: 22px;
      }

      body.login-page-shell .login-header {
        margin-bottom: 22px;
      }

      body.login-page-shell .login-captcha-group.show {
        grid-template-columns: minmax(0, 1fr) 84px;
        gap: 8px;
      }

      body.login-page-shell .login-captcha-img {
        height: 42px;
      }

      body.login-page-shell .login-links {
        gap: 12px;
      }
    }

    @media (max-width: 360px) {
      body.login-page-shell .login-card {
        padding-left: 14px;
        padding-right: 14px;
      }

      body.login-page-shell .login-captcha-group.show {
        grid-template-columns: minmax(0, 1fr) 78px;
      }
    }

    @media (prefers-reduced-motion: reduce) {
      body.login-page-shell *,
      body.login-page-shell *::before,
      body.login-page-shell *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
      }
    }

    html,
    body { width: 100%; min-width: 0; max-width: 100%; }

    body.login-page-shell {
      min-height: 100svh;
      overflow-x: hidden;
      overflow-y: auto;
    }

    body.login-page-shell .login-page {
      box-sizing: border-box;
      min-height: calc(100svh - var(--navbar-height, 64px));
      padding: calc(var(--navbar-height, 64px) + 30px) 24px 48px;
      align-items: center;
    }

    body.login-page-shell .login-layout {
      width: min(100%, 1000px);
      display: grid;
      grid-template-columns: minmax(280px, .82fr) minmax(0, 420px);
      gap: clamp(28px, 6vw, 88px);
      align-items: center;
    }

    body.login-page-shell .auth-side {
      box-sizing: border-box;
      padding: clamp(22px, 4vw, 42px);
      color: #57466f;
      border: 1px solid rgba(255,255,255,.64);
      border-radius: 30px;
      background: linear-gradient(145deg, rgba(255,255,255,.48), rgba(255,255,255,.16));
      box-shadow: 0 24px 70px rgba(129,93,170,.10), inset 0 1px 0 rgba(255,255,255,.72);
      backdrop-filter: blur(18px);
      -webkit-backdrop-filter: blur(18px);
    }
    body.login-page-shell .auth-side-kicker { display: block; margin-bottom: 22px; color: #b27ca9; font-size: .68rem; font-weight: 800; letter-spacing: .2em; }
    body.login-page-shell .auth-side-icon { display: grid; place-items: center; width: 60px; height: 60px; margin-bottom: 22px; border-radius: 20px; background: linear-gradient(135deg, rgba(255,255,255,.9), rgba(255,228,238,.7)); box-shadow: 0 10px 24px rgba(255,107,157,.15); font-size: 1.8rem; }
    body.login-page-shell .auth-side h2 { margin: 0 0 16px; color: #49375f; font-size: clamp(1.65rem, 3vw, 2.45rem); line-height: 1.25; letter-spacing: -.03em; }
    body.login-page-shell .auth-side p { max-width: 34em; margin: 0; color: #8a789c; font-size: .92rem; line-height: 1.8; }
    body.login-page-shell .auth-side-points { display: grid; gap: 12px; margin-top: 28px; }
    body.login-page-shell .auth-side-points div { display: flex; align-items: center; gap: 12px; color: #6b597e; font-size: .88rem; }
    body.login-page-shell .auth-side-points div > span:first-child { display: grid; place-items: center; width: 30px; height: 30px; flex: 0 0 30px; border-radius: 10px; background: rgba(255,255,255,.68); }
    body.login-page-shell .auth-side-note { margin-top: 30px; padding-top: 16px; border-top: 1px solid rgba(156,119,180,.14); color: #a08eae; font-size: .75rem; }
    [data-theme="dark"] body.login-page-shell .auth-side { color: #eadcf6; border-color: rgba(255,255,255,.1); background: linear-gradient(145deg, rgba(52,35,65,.72), rgba(28,22,42,.52)); box-shadow: 0 24px 70px rgba(0,0,0,.18), inset 0 1px 0 rgba(255,255,255,.06); }
    [data-theme="dark"] body.login-page-shell .auth-side h2 { color: #f7eefe; }
    [data-theme="dark"] body.login-page-shell .auth-side p { color: rgba(255,255,255,.55); }
    [data-theme="dark"] body.login-page-shell .auth-side-points div { color: rgba(255,255,255,.72); }
    [data-theme="dark"] body.login-page-shell .auth-side-note { color: rgba(255,255,255,.42); border-color: rgba(255,255,255,.1); }

    body.login-page-shell .login-card { width: 100%; max-width: none; box-sizing: border-box; }
    body.login-page-shell .login-captcha-group.show { display: grid; grid-template-columns: minmax(0, 1fr) 100px; align-items: center; }
    body.login-page-shell .login-captcha-img { width: 100%; min-width: 0; max-width: 100px; object-fit: cover; box-sizing: border-box; }

    @media (max-width: 900px) and (min-width: 769px) {
      body.login-page-shell .login-page { padding-left: 18px; padding-right: 18px; }
      body.login-page-shell .login-layout { gap: 24px; grid-template-columns: minmax(240px, .75fr) minmax(0, 400px); }
      body.login-page-shell .auth-side { padding: 28px; }
    }

    @media (max-width: 768px) {
      body.login-page-shell .login-page { display: block; min-height: 0; padding: calc(var(--navbar-height, 58px) + 14px) 12px 32px; }
      body.login-page-shell .login-layout { display: flex; flex-direction: column; gap: 14px; width: 100%; }
      body.login-page-shell .login-card { order: 1; }
      body.login-page-shell .auth-side { order: 2; padding: 24px 20px; border-radius: 22px; }
      body.login-page-shell .auth-side-kicker { margin-bottom: 15px; }
      body.login-page-shell .auth-side-icon { width: 48px; height: 48px; margin-bottom: 16px; border-radius: 16px; font-size: 1.45rem; }
      body.login-page-shell .auth-side h2 { font-size: 1.45rem; }
      body.login-page-shell .auth-side p { font-size: .84rem; }
      body.login-page-shell .auth-side-points { gap: 9px; margin-top: 20px; }
      body.login-page-shell .auth-side-note { margin-top: 20px; }
      body.login-page-shell .login-captcha-group.show { grid-template-columns: minmax(0, 1fr) 84px; gap: 8px; }
      body.login-page-shell .login-captcha-img { height: 42px; }
    }

    @media (max-width: 380px) {
      body.login-page-shell .auth-side { padding: 20px 16px; }
      body.login-page-shell .login-captcha-group.show { grid-template-columns: minmax(0, 1fr) 78px; }
    }