@charset "utf-8";
/* CSS Document */

 /* ==================== Reset & Theme ==================== */
  *, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
  :root {
    --bg-primary: #0a0a0f; --bg-secondary: #12121a; --bg-card: #1a1a2e;
    --text-primary: #e8e8f0; --text-secondary: #9999b0;
    --accent-1: #6c5ce7; --accent-2: #00cec9; --accent-3: #fd79a8;
    --gradient-main: linear-gradient(135deg, #6c5ce7, #00cec9);
    --radius: 16px; --shadow: 0 8px 32px rgba(0,0,0,0.3);
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --max-width: 1200px; --nav-height: 70px;
  }
  html { scroll-behavior: smooth; font-size: 16px; }
  body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", sans-serif; background: var(--bg-primary); color: var(--text-primary); line-height: 1.6; overflow-x: hidden; }
  a { text-decoration: none; color: inherit; } ul { list-style: none; }
  .container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

  /* Background Glow */
  .bg-glow { position: fixed; inset: 0; pointer-events: none; z-index: 0; overflow: hidden; }
  .bg-glow .orb { position: absolute; border-radius: 50%; filter: blur(100px); opacity: 0.12; animation: float 20s ease-in-out infinite; }
  .bg-glow .orb:nth-child(1) { width: 600px; height: 600px; background: var(--accent-1); top: -200px; left: -100px; }
  .bg-glow .orb:nth-child(2) { width: 500px; height: 500px; background: var(--accent-2); top: 40%; right: -150px; animation-delay: -7s; }
  .bg-glow .orb:nth-child(3) { width: 400px; height: 400px; background: var(--accent-3); bottom: -100px; left: 30%; animation-delay: -14s; }
  @keyframes float { 0%, 100% { transform: translate(0, 0) scale(1); } 33% { transform: translate(40px, -30px) scale(1.05); } 66% { transform: translate(-20px, 20px) scale(0.95); } }

  /* ==================== Navigation (公用) ==================== */
  .navbar { position: fixed; top: 0; left: 0; width: 100%; height: var(--nav-height); z-index: 1000; backdrop-filter: blur(20px); background: rgba(10,10,15,0.75); border-bottom: 1px solid rgba(255,255,255,0.06); transition: var(--transition); }
  .navbar .container { display: flex; align-items: center; justify-content: space-between; height: 100%; }
  .logo { display: flex; align-items: center; gap: 10px; font-size: 1.4rem; font-weight: 800; }
  .logo-icon { width: 38px; height: 38px; border-radius: 10px; background: var(--gradient-main); display: flex; align-items: center; justify-content: center; font-size: 1.1rem; }
  .nav-links { display: flex; gap: 4px; align-items: center; }
  .nav-item { position: relative; }
  .nav-link { display: flex; align-items: center; gap: 4px; padding: 10px 18px; border-radius: 10px; font-size: 0.92rem; font-weight: 500; color: var(--text-secondary); transition: var(--transition); cursor: pointer; background: none; border: none; font-family: inherit; }
  .nav-link:hover, .nav-link.active { color: var(--text-primary); background: rgba(255,255,255,0.06); }
  .nav-link .arrow { font-size: 0.7rem; transition: var(--transition); }
  .nav-item:hover .nav-link .arrow { transform: rotate(180deg); }
  .dropdown { position: absolute; top: calc(100% + 8px); left: 50%; transform: translateX(-50%) translateY(8px); min-width: 180px; background: rgba(26,26,46,0.98); backdrop-filter: blur(20px); border: 1px solid rgba(255,255,255,0.08); border-radius: 12px; padding: 8px; opacity: 0; visibility: hidden; transition: var(--transition); box-shadow: 0 16px 48px rgba(0,0,0,0.4); }
  .nav-item:hover .dropdown { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
  .dropdown a { display: block; padding: 10px 16px; border-radius: 8px; font-size: 0.88rem; color: var(--text-secondary); transition: var(--transition); white-space: nowrap; }
  .dropdown a:hover { background: rgba(108,92,231,0.15); color: var(--text-primary); }
  .nav-actions { display: flex; gap: 12px; align-items: center; }
  .btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 10px 22px; border-radius: 50px; font-size: 0.9rem; font-weight: 600; border: none; cursor: pointer; transition: var(--transition); white-space: nowrap; }
  .btn-ghost { background: transparent; color: var(--text-primary); border: 1px solid rgba(255,255,255,0.12); }
  .btn-ghost:hover { border-color: rgba(255,255,255,0.3); background: rgba(255,255,255,0.05); }
  .btn-primary { background: var(--gradient-main); color: #fff; box-shadow: 0 4px 20px rgba(108,92,231,0.4); }
  .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 28px rgba(108,92,231,0.5); }
  .btn-lg { padding: 14px 32px; font-size: 1rem; }
  .mobile-toggle { display: none; background: none; border: none; cursor: pointer; width: 32px; height: 32px; position: relative; }
  .mobile-toggle span { display: block; width: 22px; height: 2px; background: var(--text-primary); position: absolute; left: 5px; transition: var(--transition); }
  .mobile-toggle span:nth-child(1) { top: 9px; } .mobile-toggle span:nth-child(2) { top: 15px; } .mobile-toggle span:nth-child(3) { top: 21px; }
  .mobile-toggle.active span:nth-child(1) { transform: rotate(45deg); top: 15px; }
  .mobile-toggle.active span:nth-child(2) { opacity: 0; }
  .mobile-toggle.active span:nth-child(3) { transform: rotate(-45deg); top: 15px; }

/* ==================== ✨Auth Modal (公用) ==================== */
  .auth-overlay {
    position: fixed; inset: 0; background: rgba(5, 5, 10, 0.75); backdrop-filter: blur(12px);
    z-index: 2000; display: flex; align-items: center; justify-content: center;
    opacity: 0; visibility: hidden; transition: opacity 0.3s ease, visibility 0.3s;
  }
  .auth-overlay.open { opacity: 1; visibility: visible; }
  .auth-modal {
    width: 100%; max-width: 420px; background: var(--bg-card); border: 1px solid rgba(255,255,255,0.08);
    border-radius: 20px; box-shadow: 0 24px 64px rgba(0,0,0,0.5); position: relative;
    transform: translateY(20px) scale(0.95); transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1); overflow: hidden;
  }
  .auth-overlay.open .auth-modal { transform: translateY(0) scale(1); }
  .auth-close {
    position: absolute; top: 16px; right: 16px; width: 32px; height: 32px; border-radius: 50%;
    background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1); color: var(--text-secondary);
    font-size: 1.2rem; cursor: pointer; display: flex; align-items: center; justify-content: center;
    transition: var(--transition); z-index: 10;
  }
  .auth-close:hover { background: rgba(253,121,168,0.2); color: var(--accent-3); border-color: var(--accent-3); }
  .auth-container { display: flex; width: 200%; transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1); }
  .auth-container.show-register { transform: translateX(-50%); }
  .auth-view { width: 50%; flex-shrink: 0; padding: 40px 32px; }
  .auth-view h2 { font-size: 1.6rem; font-weight: 800; margin-bottom: 6px; background: var(--gradient-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
  .auth-subtitle { font-size: 0.88rem; color: var(--text-secondary); margin-bottom: 28px; }
  .form-group { margin-bottom: 18px; }
  .form-group label { display: block; font-size: 0.82rem; font-weight: 600; color: var(--text-secondary); margin-bottom: 6px; }
  .input-wrapper { position: relative; }
  .form-group input {
    width: 100%; padding: 12px 16px; background: rgba(0,0,0,0.2); border: 1px solid rgba(255,255,255,0.08);
    border-radius: 10px; color: var(--text-primary); font-size: 0.92rem; outline: none;
    transition: border-color 0.2s, box-shadow 0.2s; font-family: inherit;
  }
  .form-group input::placeholder { color: rgba(255,255,255,0.2); }
  .form-group input:focus { border-color: var(--accent-1); box-shadow: 0 0 0 3px rgba(108,92,231,0.15); }
  .form-group input.error { border-color: var(--accent-3); box-shadow: 0 0 0 3px rgba(253,121,168,0.15); }
  .pwd-toggle { position: absolute; right: 12px; top: 50%; transform: translateY(-50%); background: none; border: none; color: var(--text-secondary); cursor: pointer; font-size: 1rem; padding: 4px; transition: color 0.2s; }
  .pwd-toggle:hover { color: var(--text-primary); }
  .captcha-row { display: flex; gap: 10px; }
  .captcha-row input { flex: 1; }
  .captcha-btn {
    flex-shrink: 0; padding: 0 16px; background: rgba(108,92,231,0.15); border: 1px solid rgba(108,92,231,0.3);
    border-radius: 10px; color: #a29bfe; font-size: 0.82rem; font-weight: 600; cursor: pointer;
    transition: var(--transition); white-space: nowrap; font-family: inherit;
  }
  .captcha-btn:hover:not(:disabled) { background: rgba(108,92,231,0.25); }
  .captcha-btn:disabled { opacity: 0.5; cursor: not-allowed; }
  .captcha-canvas { flex-shrink: 0; width: 100px; height: 44px; border-radius: 8px; cursor: pointer; border: 1px solid rgba(255,255,255,0.1); background: #0d0d1a; }
  .auth-submit { width: 100%; margin-top: 8px; margin-bottom: 20px; padding: 14px; font-size: 1rem; border-radius: 12px; }
  .auth-switch { text-align: center; font-size: 0.88rem; color: var(--text-secondary); }
  .auth-switch a { color: var(--accent-2); font-weight: 600; cursor: pointer; margin-left: 4px; transition: color 0.2s; }
  .auth-switch a:hover { color: #55efc4; text-decoration: underline; }
  .form-error-msg { font-size: 0.75rem; color: var(--accent-3); margin-top: 4px; display: none; }
  .form-group.has-error .form-error-msg { display: block; }

  /* ==================== Mobile Menu (公用) ==================== */
  .mobile-menu { position: fixed; top: var(--nav-height); left: 0; width: 100%; height: calc(100vh - var(--nav-height)); background: rgba(10,10,15,0.98); backdrop-filter: blur(24px); z-index: 999; overflow-y: auto; transform: translateX(100%); opacity: 0; visibility: hidden; transition: transform 0.35s ease, opacity 0.35s ease, visibility 0.35s; padding: 16px 0 40px; }
  .mobile-menu.open { transform: translateX(0); opacity: 1; visibility: visible; }
  .mm-group { border-bottom: 1px solid rgba(255,255,255,0.04); }
  .mm-trigger { display: flex; align-items: center; justify-content: space-between; width: 100%; padding: 18px 24px; font-size: 1rem; font-weight: 600; color: var(--text-primary); background: none; border: none; cursor: pointer; font-family: inherit; }
  .mm-trigger .mm-arrow { font-size: 0.75rem; color: var(--text-secondary); transition: var(--transition); }
  .mm-trigger.expanded .mm-arrow { transform: rotate(180deg); color: var(--accent-1); }
  .mm-trigger.expanded { color: var(--accent-1); }
  .mm-submenu { max-height: 0; overflow: hidden; transition: max-height 0.35s ease; background: rgba(0,0,0,0.15); }
  .mm-submenu.open { max-height: 400px; }
  .mm-submenu a { display: flex; align-items: center; gap: 10px; padding: 14px 24px 14px 40px; font-size: 0.92rem; color: var(--text-secondary); border-left: 3px solid transparent; }
  .mm-submenu a:hover { color: var(--text-primary); background: rgba(108,92,231,0.08); border-left-color: var(--accent-1); }
  .mm-submenu a::before { content: ''; width: 5px; height: 5px; border-radius: 50%; background: rgba(255,255,255,0.15); }
  .mm-single { display: flex; align-items: center; width: 100%; padding: 18px 24px; font-size: 1rem; font-weight: 600; color: var(--text-primary); }
  .mm-actions { padding: 24px; display: flex; flex-direction: column; gap: 12px; margin-top: 8px; }
  .mm-actions .btn { width: 100%; justify-content: center; }
  body.menu-open { overflow: hidden; }

  /* ==================== Footer (公用) ==================== */
  .footer { border-top: 1px solid rgba(255,255,255,0.06); padding: 60px 0 32px; position: relative; z-index: 1; }
  .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
  .footer-brand p { font-size: 0.9rem; color: var(--text-secondary); margin-top: 14px; line-height: 1.7; }
  .footer-social { display: flex; gap: 12px; margin-top: 20px; }
  .footer-social a { width: 38px; height: 38px; border-radius: 10px; background: rgba(255,255,255,0.06); display: flex; align-items: center; justify-content: center; font-size: 1rem; transition: var(--transition); }
  .footer-social a:hover { background: var(--accent-1); transform: translateY(-2px); }
  .footer-col h4 { font-size: 0.92rem; font-weight: 700; margin-bottom: 18px; }
  .footer-col a { display: block; font-size: 0.88rem; color: var(--text-secondary); margin-bottom: 10px; }
  .footer-col a:hover { color: var(--text-primary); }
  .footer-bottom { border-top: 1px solid rgba(255,255,255,0.06); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; font-size: 0.82rem; color: var(--text-secondary); }
  .scroll-top { position: fixed; bottom: 30px; right: 30px; width: 46px; height: 46px; border-radius: 50%; background: var(--gradient-main); color: #fff; border: none; cursor: pointer; font-size: 1.2rem; z-index: 999; display: flex; align-items: center; justify-content: center; opacity: 0; visibility: hidden; transform: translateY(10px); transition: var(--transition); box-shadow: 0 4px 20px rgba(108,92,231,0.4); }
  .scroll-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }