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cubic-bezier(.2,.76,.24,1)}@keyframes paywall-in{0%{opacity:0;transform:translateY(18px) scale(.96)}to{opacity:1;transform:translateY(0) scale(1)}}.paywall-modal__header{position:relative;overflow:hidden;padding:32px 24px 24px;background:linear-gradient(145deg,#185f5b1f,#2f867e0f);border-bottom:1px solid rgba(24,95,91,.1);text-align:center}.paywall-modal__header-glow{position:absolute;top:-40%;left:50%;transform:translate(-50%);width:180px;height:180px;background:radial-gradient(circle,rgba(24,95,91,.18),transparent 65%);pointer-events:none}.paywall-modal__icon{position:relative;display:inline-flex;align-items:center;justify-content:center;width:56px;height:56px;border-radius:18px;background:linear-gradient(135deg,#185f5b,#2f867e);color:#fff;margin-bottom:12px;box-shadow:0 6px 20px #185f5b4d}.paywall-modal__title{position:relative;font-family:Iowan Old Style,Palatino Linotype,Book Antiqua,"Source Han Serif 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button{background:linear-gradient(145deg,var(--glass-surface-hover),var(--color-bg));border-radius:18px;box-shadow:var(--neu-shadow-flat);background:var(--color-bg);color:var(--color-primary);border:1px solid var(--color-border);padding:10px 20px;font-size:14px;border-radius:var(--radius-sm);cursor:pointer;transition:all .15s}.chat-window__input button:hover:not(:disabled){box-shadow:4px 4px 8px #a3b1c680,-4px -4px 8px #ffffffb3;color:var(--color-primary-accent)}.chat-window__input button:active:not(:disabled){box-shadow:var(--neu-shadow-inset);transform:translateY(1px)}.chat-window__input button:disabled{opacity:.5;cursor:default}@keyframes chat-msg-fade{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}@keyframes modal-fade-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}[data-theme=dark] .app-modal{background:linear-gradient(160deg,#1c2a28f5,#121c1bfa);border-color:#b4dcd61a;box-shadow:0 32px 90px #00000080,inset 0 1px 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code{background:#00000040}[data-theme=dark] .gpt-chat__input-area{background:#162220d9;border-color:#b4dcd614}[data-theme=dark] .gpt-chat__send-btn{box-shadow:4px 4px 8px #00000040,-4px -4px 8px #ffffff08}[data-theme=dark] .gpt-chat__send-btn:hover{box-shadow:4px 4px 8px #0000004d,-4px -4px 8px #ffffff05}.fish-mode-modal{display:flex;flex-direction:column;gap:var(--space-4)}.fish-mode-modal__hero{display:flex;flex-direction:column;align-items:center;gap:var(--space-3);padding:var(--space-4) var(--space-4) var(--space-3);background:#20b2aa0a;border:1px solid rgba(32,178,170,.12);border-radius:var(--radius-md);text-align:center}.fish-mode-modal__hero-icon{font-size:2.2rem;line-height:1}.fish-mode-modal__hero-text{font-size:.88rem;color:var(--color-text-soft);line-height:1.6;max-width:28ch}.fish-mode-modal__desc{font-size:.88rem;color:var(--color-text-soft);line-height:1.6}.fish-mode-modal__field{display:flex;flex-direction:column;gap:var(--space-2)}.fish-mode-modal__label{font-size:.82rem;font-weight:600;color:var(--color-text)}.fish-mode-modal__interval-chips{display:flex;gap:var(--space-2);flex-wrap:wrap}.fish-mode-modal__chip{padding:6px 16px;border-radius:100px;border:1.5px solid rgba(32,178,170,.2);background:#20b2aa0a;color:var(--color-text-soft);font-size:.82rem;font-weight:600;cursor:pointer;transition:background var(--dur-fast) var(--ease-standard),border-color var(--dur-fast) var(--ease-standard),color var(--dur-fast) var(--ease-standard)}.fish-mode-modal__chip.is-active{background:#20b2aa1f;border-color:#20b2aa73;color:#1a9b94}.fish-mode-modal__chip:hover:not(.is-active){background:#20b2aa14;border-color:#20b2aa52;color:#1a9b94}.fish-mode-modal__card-count{font-size:.78rem;color:var(--color-text-soft);opacity:.75}.fish-mode-modal__active-banner{display:flex;align-items:center;gap:8px;padding:10px 14px;border-radius:var(--radius-sm);background:#20b2aa12;border:1px solid rgba(32,178,170,.18);color:#1a9b94;font-size:.88rem;font-weight:600}.fish-mode-modal__active-dot{width:8px;height:8px;border-radius:50%;background:#20b2aa;flex-shrink:0;box-shadow:0 0 #20b2aa66;animation:fish-mode-pulse 2s ease-in-out infinite}@keyframes fish-mode-pulse{0%,to{box-shadow:0 0 #20b2aa66}50%{box-shadow:0 0 0 6px #20b2aa00}}.fish-mode-modal__hint{font-size:.82rem;color:var(--color-text-soft);line-height:1.6}.fish-mode-modal__actions{display:flex;gap:var(--space-2)}.fish-mode-modal__btn{flex:1;min-height:44px;border-radius:var(--radius-sm);font-size:.92rem;font-weight:700;cursor:pointer;transition:background var(--dur-fast) var(--ease-standard),box-shadow var(--dur-fast) var(--ease-standard),transform var(--dur-fast) var(--ease-standard)}.fish-mode-modal__btn:active{transform:scale(.98)}.fish-mode-modal__btn:disabled{opacity:.35;cursor:not-allowed}.fish-mode-modal__btn--start{background:linear-gradient(135deg,#20b2aa,#20b2aad1);color:#fff;border:none;box-shadow:0 4px 18px #20b2aa52}.fish-mode-modal__btn--start:hover:not(:disabled){box-shadow:0 6px 24px #20b2aa6b;transform:translateY(-1px)}.fish-mode-modal__btn--stop{background:rgba(var(--color-accent-rgb),.08);color:var(--color-accent);border:1.5px solid rgba(var(--color-accent-rgb),.2)}.fish-mode-modal__btn--stop:hover{background:rgba(var(--color-accent-rgb),.14)}.fish-mode-modal__download-row{display:flex;gap:var(--space-2)}.fish-mode-modal__dl-btn{flex:1;display:inline-flex;align-items:center;justify-content:center;gap:7px;min-height:42px;border-radius:var(--radius-sm);font-size:.85rem;font-weight:600;text-decoration:none;transition:background var(--dur-fast) var(--ease-standard),box-shadow var(--dur-fast) var(--ease-standard)}.fish-mode-modal__dl-btn--primary{background:linear-gradient(135deg,#20b2aa,#20b2aad1);color:#fff;border:none;box-shadow:0 4px 18px #20b2aa4d}.fish-mode-modal__dl-btn--primary:hover{box-shadow:0 6px 24px #20b2aa66}.fish-mode-modal__dl-btn--secondary{background:#20b2aa12;color:#1a9b94;border:1.5px solid rgba(32,178,170,.22)}.fish-mode-modal__dl-btn--secondary:hover{background:#20b2aa21}.mobile-bottom-nav{position:fixed;bottom:0;left:0;right:0;z-index:50;display:flex;justify-content:space-around;align-items:stretch;background:var(--color-bg);border-top:1px solid var(--color-border-soft);backdrop-filter:blur(24px) saturate(1.15);-webkit-backdrop-filter:blur(24px) saturate(1.15);padding-bottom:env(safe-area-inset-bottom,0px);box-shadow:0 -4px 20px #5840280f}.mobile-bottom-nav__item{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;flex:1;padding:8px 4px;color:var(--color-text-dim);text-decoration:none;font-size:11px;font-weight:600;letter-spacing:.02em;transition:color .18s cubic-bezier(.2,0,0,1),transform .18s cubic-bezier(.2,0,0,1);-webkit-tap-highlight-color:transparent;background:none;border:none;cursor:pointer;font-family:inherit;width:100%}.mobile-bottom-nav__item:active{transform:scale(.92)}.mobile-bottom-nav__item.is-active{color:var(--color-primary)}.mobile-bottom-nav__item.is-active .mobile-bottom-nav__icon{background:rgba(var(--color-primary-rgb),.1);box-shadow:0 4px 12px rgba(var(--color-primary-rgb),.12)}.mobile-bottom-nav__icon{position:relative;display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:12px;overflow:visible;transition:background .18s cubic-bezier(.2,0,0,1),box-shadow .18s cubic-bezier(.2,0,0,1)}.mobile-bottom-nav__icon svg{width:20px;height:20px}.mobile-bottom-nav__badge{position:absolute;top:-5px;right:-7px}.mobile-bottom-nav__avatar{width:24px;height:24px;border-radius:50%;object-fit:cover}.mobile-bottom-nav__label{line-height:1}body.has-lyrics-bar .mobile-bottom-nav{display:none}@media (min-width: 769px){.mobile-bottom-nav{display:none}}.pwa-prompt{position:fixed;bottom:72px;left:50%;transform:translate(-50%);z-index:200;-webkit-user-select:none;user-select:none}.pwa-prompt__pill{display:flex;align-items:center;gap:7px;padding:9px 16px 9px 12px;background:#185f5b;color:#fff;border:none;border-radius:999px;box-shadow:0 4px 16px #185f5b59,0 1px 4px #0000001f;font-size:13px;font-weight:600;letter-spacing:.01em;cursor:pointer;transition:transform .15s,box-shadow .15s,background .15s;white-space:nowrap}.pwa-prompt__pill:active{transform:scale(.96)}.pwa-prompt__dot{width:7px;height:7px;border-radius:50%;background:#5eeac8;flex-shrink:0;box-shadow:0 0 #5eeac899;animation:pwa-pulse 2.4s ease-in-out infinite}.pwa-prompt__pill-text{white-space:nowrap}.pwa-prompt__chevron{opacity:.7;transition:transform .2s;margin-left:2px}.pwa-prompt--expanded .pwa-prompt__chevron{transform:rotate(180deg)}.pwa-prompt__card{position:absolute;bottom:calc(100% + 10px);left:50%;transform:translate(-50%);width:min(300px,100vw - 32px);background:var(--color-bg-soft);border:1px solid rgba(77,62,46,.12);border-radius:18px;box-shadow:0 16px 48px #00000024,0 4px 12px #00000014;padding:16px;display:flex;flex-direction:column;gap:12px;animation:pwa-slide-up .18s ease-out}.pwa-prompt__card-header{display:flex;align-items:center;justify-content:space-between}.pwa-prompt__card-title{font-size:14px;font-weight:700;color:var(--color-text)}.pwa-prompt__close{background:none;border:none;color:var(--color-text-soft);font-size:18px;line-height:1;cursor:pointer;padding:2px 5px;border-radius:6px;transition:color .12s,background .12s}.pwa-prompt__close:active{color:var(--color-text);background:#4d3e2e1f}.pwa-prompt__card-desc{font-size:12px;color:var(--color-text-dim);line-height:1.6;margin:0}.pwa-prompt__steps{display:flex;flex-direction:column;gap:10px;padding:0;margin:0;list-style:none}.pwa-prompt__step{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--color-text);line-height:1.5}.pwa-prompt__step-num{flex-shrink:0;width:20px;height:20px;border-radius:50%;background:#185f5b;color:#fff;font-size:11px;font-weight:700;display:flex;align-items:center;justify-content:center;margin-top:1px}.pwa-prompt__step-icon{flex-shrink:0;width:20px;height:20px;display:flex;align-items:center;justify-content:center;font-size:16px;margin-top:1px}.pwa-prompt__install-btn{display:flex;align-items:center;justify-content:center;gap:8px;padding:11px 14px;border:none;border-radius:12px;font-size:14px;font-weight:600;cursor:pointer;background:#185f5b;color:#fff;transition:transform .12s,box-shadow .12s}.pwa-prompt__install-btn:active{transform:scale(.97)}.pwa-prompt__dismiss-btn{background:none;border:none;color:var(--color-text-soft);font-size:12px;cursor:pointer;padding:4px 0;align-self:flex-start}.pwa-prompt__dismiss-btn:active{color:var(--color-text)}.pwa-wechat-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:9999;background:#000000b8;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;padding:0 20px 100px;animation:pwa-overlay-fade .2s ease-out;-webkit-tap-highlight-color:transparent}.pwa-wechat-overlay__card{width:min(320px,100%);background:var(--color-bg-soft);border:1px solid rgba(77,62,46,.12);border-radius:18px;box-shadow:0 16px 48px #0003,0 4px 12px #0000001a;padding:18px 16px;display:flex;flex-direction:column;gap:12px;animation:pwa-slide-up .22s ease-out}.pwa-wechat-overlay__header{display:flex;align-items:center;justify-content:space-between}.pwa-wechat-overlay__title{font-size:15px;font-weight:700;color:var(--color-text)}.pwa-wechat-overlay__desc{font-size:13px;color:var(--color-text-dim);line-height:1.6;margin:0}.pwa-wechat-overlay__arrow{position:fixed;top:12px;right:16px;animation:pwa-arrow-bounce 1.5s ease-in-out infinite}@keyframes pwa-pulse{0%,to{box-shadow:0 0 #5eeac899}50%{box-shadow:0 0 0 5px #5eeac800}}@keyframes pwa-slide-up{0%{opacity:0;transform:translate(-50%) translateY(8px)}to{opacity:1;transform:translate(-50%) translateY(0)}}@keyframes pwa-overlay-fade{0%{opacity:0}to{opacity:1}}@keyframes pwa-arrow-bounce{0%,to{transform:translateY(0)}50%{transform:translateY(6px)}}html,body,#root{height:100%}body{font-smooth:always;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;line-height:var(--line-normal);background:var(--color-bg);background-attachment:fixed;position:relative;overflow-x:hidden}body:before,body:after{content:"";position:fixed;inset:auto;border-radius:999px;pointer-events:none;z-index:-2;filter:blur(80px)}body:before{top:-80px;left:-120px;width:420px;height:420px;background:rgba(var(--color-primary-rgb),.12)}body:after{right:-140px;bottom:-120px;width:460px;height:460px;background:rgba(var(--color-accent-rgb),.12)}.app-shell{min-height:100%;position:relative;isolation:isolate;display:flex;flex-direction:column}main.container{flex:1;width:100%;padding-top:var(--space-0);padding-bottom:var(--space-0)}.app-shell:before{content:"";position:fixed;top:0;right:0;bottom:0;left:0;z-index:-1;background:var(--shell-gradient)}.app-shell:has(.home-page.minimal){height:100vh;height:100dvh;overflow:hidden}main.container:has(.home-page.minimal){height:calc(100vh - 56px);height:calc(100dvh - 56px);overflow:hidden;display:flex;flex-direction:column;align-items:stretch;max-width:none}.app-shell:has(.profile-page){height:100vh;height:100dvh;overflow:hidden}.app-shell:has(.profile-page) .app-footer{display:none}main.container:has(.profile-page){overflow:hidden;display:flex;flex-direction:column;align-items:stretch;padding-inline:0}.study-shell{height:100vh;height:100dvh;overflow:hidden;display:flex;flex-direction:column}@media (max-width: 960px){.study-shell{height:100vh;height:100dvh;overflow:hidden}}.app-shell.is-mobile .app-footer{display:none}.app-shell.is-mobile main.container{padding-left:0;padding-right:0}*{scrollbar-width:thin;scrollbar-color:var(--color-border) transparent}::-webkit-scrollbar{width:10px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:linear-gradient(180deg,rgba(var(--color-primary-rgb),.35),rgba(var(--color-accent-rgb),.28));border-radius:12px}::-webkit-scrollbar-thumb:hover{background:var(--color-primary-accent)}