:root{--bg-dark: #050508;--bg-card: rgba(12, 15, 25, .85);--bg-card-solid: #0c0f19;--bg-hover: rgba(6, 182, 212, .08);--accent: #06b6d4;--accent-secondary: #22d3ee;--accent-hover: #22d3ee;--accent-muted: rgba(6, 182, 212, .15);--accent-glow: rgba(6, 182, 212, .4);--text: #f0f9ff;--text-muted: #94a3b8;--border: rgba(6, 182, 212, .2);--border-subtle: rgba(148, 163, 184, .12);--bg-input: rgba(5, 5, 8, .6);--success: #10b981;--error: #f43f5e;--radius: 16px;--radius-sm: 10px;--font-sans: "DM Sans", "PingFang SC", "Microsoft YaHei", sans-serif;--shadow-glow: 0 0 40px rgba(6, 182, 212, .15);--transition: .25s cubic-bezier(.4, 0, .2, 1)}*{box-sizing:border-box;margin:0;padding:0}html{-webkit-text-size-adjust:100%}body{font-family:var(--font-sans);background:var(--bg-dark);color:var(--text);min-height:100vh;line-height:1.6;background-image:radial-gradient(ellipse 80% 50% at 50% -20%,rgba(6,182,212,.12),transparent),radial-gradient(ellipse 60% 40% at 100% 50%,rgba(6,182,212,.06),transparent),radial-gradient(ellipse 60% 40% at 0% 80%,rgba(34,211,238,.05),transparent)}a{color:var(--accent);text-decoration:none;transition:color var(--transition)}a:hover{color:var(--accent-hover)}.nav{display:flex;align-items:center;justify-content:space-between;padding:0 1.75rem;min-height:56px;height:56px;background:#080c14f2;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--border-subtle);position:sticky;top:0;z-index:400;isolation:isolate}.nav-lead{display:flex;align-items:center;gap:.5rem;min-width:0;flex:1 1 auto}@media(min-width:769px){.nav-menu-btn{display:none!important}.nav-lead{flex:0 1 auto}.nav-drawer-overlay-root{display:none!important;pointer-events:none!important;visibility:hidden!important}}.nav-brand{flex-shrink:0;font-size:1.15rem;font-weight:700;line-height:56px;color:var(--text);letter-spacing:-.02em;background:linear-gradient(135deg,#fff 0%,var(--accent-secondary) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.nav-right{display:flex;align-items:center;gap:2rem;margin-left:auto;height:100%}.nav-links{display:flex;align-items:center;gap:2rem;height:100%}.nav-links a{display:inline-flex;align-items:center;height:100%;padding:0;color:var(--text-muted);font-size:.9rem;font-weight:500;line-height:1;border-bottom:2px solid transparent;margin-bottom:-1px;box-sizing:border-box;cursor:pointer;transition:color var(--transition),border-color var(--transition)}.nav-links a:hover{color:var(--accent)}.nav-links a.active{color:var(--accent);font-weight:600;border-bottom-color:var(--accent)}.nav-links .nav-credits-first{border-bottom:none;margin-bottom:0;height:auto}.lang-dropdown{position:relative;flex-shrink:0}.nav-lang-slot.lang-dropdown{height:32px;display:flex;align-items:center}.lang-dropdown-trigger{display:inline-flex;align-items:center;justify-content:center;gap:4px;height:32px;min-width:36px;padding:0 8px;border:none;border-radius:8px;background:#94a3b814;color:var(--text-muted);cursor:pointer;transition:color var(--transition),background var(--transition)}.lang-dropdown-trigger:hover{color:var(--accent);background:#94a3b824}.lang-icon-globe{width:18px;height:18px;flex-shrink:0}.lang-icon-chevron{flex-shrink:0;opacity:.65;transition:transform .2s ease}.lang-icon-chevron-open{transform:rotate(180deg)}.lang-dropdown-panel{position:absolute;top:calc(100% + 6px);right:0;min-width:148px;padding:4px;border-radius:10px;background:var(--bg-card);border:1px solid var(--border-subtle);box-shadow:var(--shadow-glow);z-index:300}.lang-dropdown-option{display:flex;align-items:center;gap:10px;width:100%;padding:10px 12px;border:none;border-radius:8px;background:transparent;color:var(--text);font-size:.9rem;font-weight:500;cursor:pointer;text-align:left;transition:background var(--transition),color var(--transition)}.lang-dropdown-option:hover{background:var(--bg-hover);color:var(--accent)}.lang-dropdown-option.active{color:var(--accent);background:#94a3b814}.lang-flag{display:flex;width:28px;height:18px;border-radius:2px;overflow:hidden;flex-shrink:0;box-shadow:0 0 0 1px #0000001f}.lang-flag svg{width:100%;height:100%;display:block}.login-lang-wrap{display:flex;justify-content:center;margin-top:1rem}.login-lang-wrap .lang-dropdown-panel{right:auto;left:50%;transform:translate(-50%)}.nav-user-pill{display:flex;align-items:center;flex-shrink:0;min-width:80px;height:36px;padding:0 6px;background:#141c2899;border:1px solid var(--border-subtle);border-radius:18px;box-sizing:border-box}.nav-user-pill:has(#userInfo[style*=flex]){min-width:0;padding:0 4px}.nav-login-btn{display:inline-flex;align-items:center;justify-content:center;height:28px;padding:0 14px;color:var(--accent);font-size:.875rem;font-weight:600;line-height:1;border-radius:14px;background:var(--accent-muted);transition:all var(--transition)}.nav-login-btn:hover{background:#06b6d440}.nav-avatar-dropdown{position:relative;display:flex;align-items:center}.nav-avatar-dropdown:hover .nav-avatar-menu,.nav-avatar-dropdown.nav-dropdown-open .nav-avatar-menu{opacity:1;visibility:visible}.nav-avatar-menu{position:absolute;top:100%;right:0;margin-top:4px;min-width:120px;padding:6px 0;background:#0c0f19fa;border:1px solid var(--border-subtle);border-radius:var(--radius-sm);box-shadow:0 10px 40px #00000080;opacity:0;visibility:hidden;transition:opacity .2s,visibility .2s;z-index:200}.nav-logout-item{display:block;padding:10px 16px;color:var(--text-muted);font-size:.9rem;font-weight:500;text-decoration:none;transition:all var(--transition);cursor:pointer}.nav-logout-item:hover{color:var(--error);background:#f43f5e1a}.nav-avatar-wrap{display:flex;align-items:center;justify-content:center;flex-shrink:0;width:32px;height:32px;padding:0;border-radius:50%;overflow:hidden;border:2px solid var(--border-subtle);box-sizing:border-box;transition:all var(--transition);background:#141c2880}.nav-avatar-wrap:hover{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-muted)}.nav-avatar-wrap.active{border-color:var(--accent)}.nav-avatar{width:100%;height:100%;object-fit:cover;display:block}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.65rem 1.35rem;border-radius:var(--radius-sm);font-size:.9rem;font-weight:600;cursor:pointer;border:none;transition:all var(--transition);letter-spacing:.01em}.btn-primary{background:linear-gradient(135deg,var(--accent) 0%,#0891b2 100%);color:#fff;box-shadow:0 4px 20px #06b6d459}.btn-primary:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 28px #06b6d473}.btn-secondary{background:var(--bg-hover);color:var(--text);border:1px solid var(--border)}.btn-secondary:hover:not(:disabled){border-color:var(--accent);color:var(--accent);box-shadow:0 0 20px var(--accent-muted)}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.card{background:var(--bg-card);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid var(--border-subtle);border-radius:var(--radius);padding:1.75rem;transition:border-color var(--transition),box-shadow var(--transition)}.card:hover{border-color:var(--border);box-shadow:var(--shadow-glow)}input,select,textarea{font-family:inherit;font-size:.95rem;padding:.65rem 1rem;border:1px solid var(--border-subtle);border-radius:var(--radius-sm);background:#05050899;color:var(--text);width:100%;transition:all var(--transition)}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-muted)}label{display:block;margin-bottom:.4rem;font-size:.9rem;color:var(--text-muted)}.form-group{margin-bottom:1rem}.toast{position:fixed;bottom:2rem;right:2rem;padding:.85rem 1.35rem;border-radius:var(--radius-sm);font-size:.9rem;font-weight:500;z-index:1000;animation:slideIn .35s cubic-bezier(.4,0,.2,1);box-shadow:0 10px 40px #0006}.toast.success{background:linear-gradient(135deg,var(--success) 0%,#059669 100%);color:#fff}.toast.error{background:linear-gradient(135deg,var(--error) 0%,#e11d48 100%);color:#fff}.toast.info{background:linear-gradient(135deg,var(--accent) 0%,#0891b2 100%);color:#fff}@keyframes slideIn{0%{transform:translate(100%);opacity:0}to{transform:translate(0);opacity:1}}.spinner{width:24px;height:24px;border:2px solid var(--border-subtle);border-top-color:var(--accent);border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.credits-badge{display:inline-flex;align-items:center;justify-content:center;gap:8px;flex-shrink:0;height:100%;padding:0 16px;color:var(--accent-secondary);background:#06b6d40f;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border:1px solid rgba(6,182,212,.2);border-radius:12px;font-size:.9rem;font-weight:600;letter-spacing:.02em;line-height:1;text-decoration:none;white-space:nowrap;box-sizing:border-box;transition:all var(--transition)}.credits-badge:before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 8px var(--accent)}.credits-badge:hover{background:#06b6d41f;border-color:#06b6d466}.nav-links .nav-credits-first.credits-badge{height:34px}.credits-badge.active{background:#06b6d41f;border-color:var(--accent)}html.nav-menu-open,body.nav-menu-open{overflow:hidden;overscroll-behavior:none}@media(max-width:768px){.nav.nav--drawer-open{z-index:6000}.nav{--nav-bar-inner: 52px;padding:0 .75rem;min-height:calc(var(--nav-bar-inner) + env(safe-area-inset-top,0px));height:auto;padding-left:max(.5rem,env(safe-area-inset-left));padding-right:max(.75rem,env(safe-area-inset-right));padding-top:env(safe-area-inset-top,0px);align-items:center;justify-content:flex-start;gap:.5rem;backdrop-filter:none;-webkit-backdrop-filter:none;background:#080c14fa}.nav-lead{flex:1 1 auto;min-width:0;max-width:calc(100% - 8.5rem)}.nav-menu-btn{display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;position:relative;z-index:2;width:44px;height:44px;margin:0;padding:0;border:none;border-radius:10px;background:#94a3b81f;color:var(--text);cursor:pointer;-webkit-tap-highlight-color:transparent;touch-action:manipulation}.nav-brand{flex:0 1 auto;min-width:0;margin-right:0;font-size:1rem;line-height:1.2;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.nav-menu-btn:active{background:#94a3b833}.nav-menu-icon{position:relative;display:block;width:20px;height:2px;background:currentColor;border-radius:1px;transition:background .2s ease}.nav-menu-icon:before,.nav-menu-icon:after{content:"";position:absolute;left:0;width:20px;height:2px;background:currentColor;border-radius:1px;transition:transform .2s ease,top .2s ease}.nav-menu-icon:before{top:-7px}.nav-menu-icon:after{top:7px}.nav-menu-icon-open{background:transparent}.nav-menu-icon-open:before{top:0;transform:rotate(45deg)}.nav-menu-icon-open:after{top:0;transform:rotate(-45deg)}.nav-drawer-overlay-root{display:block;position:fixed;left:0;right:0;bottom:0;top:calc(var(--nav-bar-inner) + env(safe-area-inset-top,0px));background:#00000080;z-index:5000;animation:navOverlayIn .2s ease;touch-action:none;transform:translateZ(0);-webkit-transform:translateZ(0)}@keyframes navOverlayIn{0%{opacity:0}to{opacity:1}}.nav-right{gap:.5rem;flex-shrink:0;margin-left:auto}#nav-drawer-links{position:fixed;top:calc(var(--nav-bar-inner) + env(safe-area-inset-top,0px));left:0;width:min(88vw,340px);max-width:calc(100vw - 3rem);height:calc(100vh - var(--nav-bar-inner) - env(safe-area-inset-top,0px));height:calc(100dvh - var(--nav-bar-inner) - env(safe-area-inset-top,0px));box-sizing:border-box;display:flex;flex-direction:column;flex-wrap:nowrap;align-items:stretch;align-content:flex-start;justify-content:flex-start;gap:0;padding:.5rem 0 max(1rem,env(safe-area-inset-bottom));margin:0;background-color:#080c14;background:linear-gradient(180deg,#0a1018,#080c14);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-right:1px solid var(--border-subtle);box-shadow:8px 0 32px #00000073;z-index:5010;isolation:isolate;overflow-x:hidden;overflow-y:auto;-webkit-overflow-scrolling:touch;touch-action:pan-y;transform:translate3d(-105%,0,0);transition:transform .28s cubic-bezier(.4,0,.2,1);pointer-events:none;visibility:hidden}#nav-drawer-links.nav-links-open{transform:translateZ(0);pointer-events:auto;visibility:visible}#nav-drawer-links>a{display:flex;align-items:center;flex:0 0 auto;align-self:stretch;width:100%;max-width:100%;box-sizing:border-box;min-height:48px;height:auto;padding:.65rem 1.25rem;font-size:1rem;font-weight:500;white-space:normal;border-bottom:1px solid var(--border-subtle);border-left:3px solid transparent;line-height:1.3}#nav-drawer-links>a.active{border-left-color:var(--accent);border-bottom-color:var(--border-subtle);background:#06b6d40f}#nav-drawer-links .nav-credits-first.credits-badge{flex:0 0 auto;align-self:stretch;width:auto;margin:.35rem .75rem .5rem;height:auto;min-height:44px;padding:.6rem 1rem;font-size:.9rem;justify-content:center;border-radius:var(--radius-sm);border-bottom:none}.nav-lang-slot.lang-dropdown .lang-dropdown-trigger{min-width:44px;min-height:44px;height:44px}.nav-user-pill{flex-shrink:0;min-height:44px;height:auto;padding:4px 6px}.nav-login-btn{min-height:36px;padding:0 12px;font-size:.85rem}.nav-avatar-wrap{width:36px;height:36px}.nav-logout-item{min-height:48px;display:flex;align-items:center}.btn{min-height:44px;padding:.75rem 1.25rem;touch-action:manipulation}.toast{left:max(1rem,env(safe-area-inset-left));right:max(1rem,env(safe-area-inset-right));bottom:max(1.5rem,env(safe-area-inset-bottom));margin:0 auto;max-width:360px}.card{padding:1.25rem}input,select,textarea{font-size:16px;min-height:44px}body{overflow-x:hidden}.site-footer{padding:1rem;padding-bottom:max(1rem,env(safe-area-inset-bottom));text-align:center}}.site-footer{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:.5rem 1rem;padding:1.5rem;font-size:.8rem;color:var(--text-muted)}.site-footer a{color:var(--text-muted)}.site-footer a:hover{color:var(--accent)}a,button{-webkit-tap-highlight-color:transparent}@supports (padding: env(safe-area-inset-bottom)){body{padding-bottom:env(safe-area-inset-bottom)}}