.iv{--iv-w:560px;--iv-gutter:20px;--iv-bottom-h:76px;background:var(--bg-deep);min-height:100dvh;color:var(--text-pri);font-family:var(--font-sans);padding-bottom:calc(var(--iv-bottom-h) + env(safe-area-inset-bottom,0px));position:relative}body.iv-locked{overflow:hidden}.iv-top{z-index:var(--z-nav);-webkit-backdrop-filter:saturate(160%)blur(14px);border-bottom:1px solid var(--border-sub);background:#000000b8;position:sticky;top:0}.iv-top-inner{justify-content:space-between;align-items:center;gap:var(--space-4);width:100%;height:56px;max-width:var(--iv-w);padding:0 var(--iv-gutter);margin:0 auto;display:flex}.iv-top-logo{transition:opacity .2s var(--ease-out);align-items:center;gap:8px;display:flex}.iv-top-logo:hover{opacity:.85}.iv-top-logo-icon{border-radius:6px;flex-shrink:0;width:40px;height:40px;display:block}.iv-top-logo-mark{flex-shrink:0;width:auto;height:22px;display:block}.iv-lang{position:relative}.iv-lang-btn{border:1px solid var(--border-sub);border-radius:var(--r-pill);height:34px;color:var(--text-sec);font:inherit;font-size:var(--fs-body-sm);cursor:pointer;background:#ffffff08;align-items:center;gap:6px;padding:0 12px;transition:color .18s,border-color .18s;display:inline-flex}.iv-lang-btn:hover{color:var(--text-pri);border-color:var(--border-hi)}.iv-lang-btn svg{flex:none;width:15px;height:15px}.iv-lang-menu{z-index:var(--z-nav);background:var(--bg-card);border:1px solid var(--border-sub);border-radius:var(--r-card);min-width:176px;max-height:60vh;box-shadow:var(--panel-shadow);opacity:0;visibility:hidden;margin:0;padding:6px;list-style:none;transition:opacity .18s,transform .18s,visibility .18s;position:absolute;top:calc(100% + 8px);right:0;overflow-y:auto;transform:translateY(-6px)}.iv-lang.is-open .iv-lang-menu{opacity:1;visibility:visible;transform:none}.iv-lang-item{border-radius:var(--r-sm);color:var(--text-sec);font-size:var(--fs-body-sm);white-space:nowrap;padding:9px 12px;text-decoration:none;display:block}.iv-lang-item:hover{color:var(--text-pri);background:#ffffff0d}.iv-lang-item.is-active{color:var(--brand)}.iv-main{width:100%;max-width:var(--iv-w);padding:0 var(--iv-gutter);margin:0 auto}.iv-h2{margin:0 0 var(--space-5);font-family:var(--font-display);font-size:clamp(24px,5vw,30px);font-weight:var(--fw-heading);letter-spacing:var(--ls-h2);text-align:center;line-height:1.2}.iv-hero{padding:var(--space-7) 0 var(--space-6);text-align:center;position:relative}.iv-hero:before{content:"";aspect-ratio:1;pointer-events:none;z-index:0;background:radial-gradient(circle,#b8e35129 0%,#b8e35100 62%);width:min(680px,130vw);position:absolute;top:-120px;left:50%;transform:translate(-50%)}.iv-hero>*{z-index:1;position:relative}.iv-badge{margin:0 0 var(--space-5);border:1px solid var(--border-hi);border-radius:var(--r-pill);color:var(--brand);font-size:var(--fs-caption);font-weight:var(--fw-strong);letter-spacing:.02em;background:#b8e35114;align-items:center;gap:8px;padding:7px 14px;display:inline-flex}.iv-badge b{font-family:var(--font-mono);letter-spacing:.06em;font-weight:500}.iv-badge-dot{border-radius:var(--r-circle);background:var(--brand);width:6px;height:6px;box-shadow:0 0 0 4px #b8e3512e}.iv-title{font-family:var(--font-display);font-size:clamp(34px,8vw,48px);font-weight:var(--fw-heading);letter-spacing:var(--ls-h1);margin:0;line-height:1.08}.iv-title-accent{color:var(--brand)}.iv-subtitle{margin:var(--space-4) auto 0;max-width:26em;color:var(--text-sec);font-size:var(--fs-body-lg);line-height:1.55}.iv-chips{margin:var(--space-5) 0 0;flex-wrap:wrap;justify-content:center;gap:8px;padding:0;list-style:none;display:flex}.iv-chips li{border:1px solid var(--border-sub);border-radius:var(--r-pill);color:var(--text-sec);font-size:var(--fs-body-sm);background:#ffffff08;padding:6px 13px}.iv-fees{margin:var(--space-3) 0 0;color:var(--text-mute);font-size:var(--fs-caption);letter-spacing:.02em}.iv-card{margin-top:var(--space-6);padding:var(--space-6) var(--space-5) var(--space-5);background:var(--card-bg);border:var(--card-border);border-radius:var(--r-panel);box-shadow:var(--card-shadow);scroll-margin-top:72px}.iv-form{flex-direction:column;display:flex}.iv-form>*+*{margin-top:var(--space-4)}.iv-field{flex-direction:column;gap:7px;display:flex}.iv-label{justify-content:space-between;align-items:baseline;gap:var(--space-3);color:var(--text-sec);font-size:var(--fs-body-sm);font-weight:var(--fw-medium);display:flex}.iv-label-hint{color:var(--text-mute);font-size:var(--fs-caption);font-weight:var(--fw-body);text-align:right}.iv-input{border-radius:var(--r-md);width:100%;height:48px;color:var(--text-pri);font-family:inherit;font-size:var(--fs-body);-webkit-appearance:none;appearance:none;background:#ffffff06;border:1px solid #ffffff14;padding:0 14px;transition:border-color .18s,box-shadow .18s,background .18s}.iv-input::placeholder{color:var(--text-disabled)}.iv-input:focus{border-color:var(--brand);background:#ffffff0a;outline:none;box-shadow:0 0 0 3px #b8e3511f}.iv-input.is-locked{color:var(--brand);font-family:var(--font-mono);letter-spacing:.1em;border-color:var(--border-hi);cursor:default;background:#b8e3510f}.iv-collapse{opacity:0;transition:grid-template-rows .32s var(--ease-out), opacity .28s, margin-top .32s var(--ease-out);grid-template-rows:0fr;display:grid}.iv-collapse>*{min-height:0;overflow:hidden}.iv-collapse:not(.is-open){margin-top:0}.iv-collapse.is-open{opacity:1;grid-template-rows:1fr}.iv-collapse.is-open>*{overflow:visible}.iv-code-row,.iv-pwd-row,.iv-invite-row{align-items:center;gap:var(--space-2);display:flex}.iv-pwd-row{position:relative}.iv-pwd-row .iv-input{padding-right:46px}.iv-eye{border-radius:var(--r-sm);width:34px;height:34px;color:var(--text-mute);cursor:pointer;background:0 0;border:0;place-items:center;padding:0;transition:color .18s;display:grid;position:absolute;top:50%;right:6px;transform:translateY(-50%)}.iv-eye:hover{color:var(--text-sec)}.iv-eye svg{width:19px;height:19px}.iv-eye.is-on .iv-eye-slash{display:none}.iv-send-btn,.iv-copy{border:1px solid var(--border-hi);border-radius:var(--r-md);height:48px;color:var(--brand);font-family:inherit;font-size:var(--fs-body-sm);font-weight:var(--fw-strong);white-space:nowrap;cursor:pointer;background:#b8e35114;flex:none;padding:0 16px;transition:background .18s,color .18s,border-color .18s}.iv-send-btn:hover:not(:disabled),.iv-copy:hover:not(:disabled){background:#b8e35129}.iv-copy:disabled{border-color:var(--border-sub);color:var(--text-mute);cursor:default;background:#ffffff08}.iv-send-btn:disabled{border-color:var(--border-sub);color:var(--text-mute);cursor:default;font-family:var(--font-mono);font-variant-numeric:tabular-nums;background:#ffffff08}.iv-copy{height:48px}.iv-msg{font-size:var(--fs-caption);margin:0;line-height:1.45;display:none}.iv-msg.is-show{display:block}.iv-msg.is-error{color:#ff6b6b}.iv-msg.is-success{color:var(--brand);word-break:break-all}.iv-submit{height:52px;margin-top:var(--space-2);border-radius:var(--r-md);background:var(--brand);color:var(--brand-ink);font-family:inherit;font-size:var(--fs-body-lg);font-weight:var(--fw-strong);cursor:pointer;transition:background .18s, transform .18s var(--card-ease), opacity .18s;border:0}.iv-submit:hover{background:var(--brand-hi)}.iv-submit:active{transform:scale(.99)}.iv-submit:disabled,.iv-submit.is-busy{opacity:.55;cursor:progress}.iv-usernum{justify-content:center;align-items:center;gap:var(--space-3);margin:var(--space-5) 0 0;color:var(--text-mute);font-size:var(--fs-caption);display:flex}.iv-avatars{display:inline-flex}.iv-avatars i{border:2px solid var(--bg-card);border-radius:var(--r-circle);background:linear-gradient(135deg, var(--brand) 0%, var(--brand-lo) 100%);width:18px;height:18px}.iv-avatars i+i{opacity:.72;margin-left:-7px}.iv-avatars i+i+i{opacity:.45}.iv-trust{margin:var(--space-6) 0 0;padding:var(--space-4) 0;border-top:1px solid var(--border-sub);border-bottom:1px solid var(--border-sub);color:var(--text-mute);font-size:var(--fs-caption);letter-spacing:.04em;text-align:center;text-transform:uppercase}.iv-steps{padding:var(--space-8) 0 0}.iv-step{align-items:center;column-gap:var(--space-3);padding:var(--space-5);background:var(--card-bg);border:var(--card-border);border-radius:var(--r-card);grid-template-columns:auto 1fr;display:grid}.iv-step-body{display:contents}.iv-stores,.iv-step-card,.iv-openacc{margin-top:var(--space-4);grid-column:1/-1}.iv-step+.iv-step{margin-top:var(--space-4)}.iv-step-no{border-radius:var(--r-circle);background:var(--brand);width:30px;height:30px;color:var(--brand-ink);font-family:var(--font-mono);font-size:var(--fs-body-sm);flex:none;place-items:center;font-weight:600;display:grid}.iv-step-body h3{min-width:0;font-size:var(--fs-h4);font-weight:var(--fw-heading);letter-spacing:var(--ls-h3);margin:0}.iv-stores{gap:var(--space-3);flex-wrap:wrap;display:flex}.iv-store{border:1px solid var(--border-sub);border-radius:var(--r-md);color:var(--text-pri);background:#ffffff08;flex:150px;align-items:center;gap:10px;padding:10px 14px;text-decoration:none;transition:border-color .18s,background .18s;display:inline-flex}.iv-store:hover{border-color:var(--border-hi);background:#ffffff0f}.iv-store svg{flex:none;width:22px;height:22px}.iv-store span{font-size:var(--fs-body-sm);font-weight:var(--fw-strong);flex-direction:column;line-height:1.25;display:flex}.iv-store small{color:var(--text-mute);font-size:10px;font-weight:var(--fw-body);letter-spacing:.06em;text-transform:uppercase}.iv-step-card{border-radius:var(--r-md);width:100%;height:auto;display:block}.iv-openacc{border-radius:var(--r-md);border:1px solid var(--border-hi);width:100%;height:46px;color:var(--brand);font-size:var(--fs-body);font-weight:var(--fw-strong);background:#b8e3511a;justify-content:center;align-items:center;text-decoration:none;transition:background .18s;display:inline-flex}.iv-openacc:hover{background:#b8e3512e}.iv-feats{padding:var(--space-8) 0 var(--space-8)}.iv-feat-grid{gap:var(--space-3);grid-template-columns:repeat(2,minmax(0,1fr));display:grid}.iv-feat{padding:var(--space-5) var(--space-4);background:var(--card-bg);border:var(--card-border);border-radius:var(--r-card);text-align:center}.iv-feat svg{width:26px;height:26px;margin-bottom:var(--space-3);color:var(--brand)}.iv-feat p{color:var(--text-sec);font-size:var(--fs-body-sm);margin:0;line-height:1.5}.iv-bottom{z-index:var(--z-nav);-webkit-backdrop-filter:saturate(160%)blur(14px);border-top:1px solid var(--border-sub);background:#000000d1;position:fixed;bottom:0;left:0;right:0}.iv-bottom-inner{gap:var(--space-3);width:100%;max-width:var(--iv-w);padding:12px var(--iv-gutter) calc(12px + env(safe-area-inset-bottom,0px));margin:0 auto;display:flex}.iv-bottom-login,.iv-bottom-reg{border-radius:var(--r-md);height:46px;font-family:inherit;font-size:var(--fs-body);font-weight:var(--fw-strong);cursor:pointer;justify-content:center;align-items:center;text-decoration:none;display:inline-flex}.iv-bottom-login{border:1px solid var(--border-sub);color:var(--text-pri);background:#ffffff0a;flex:0 0 34%}.iv-bottom-login:hover{border-color:var(--border-hi)}.iv-bottom-reg{background:var(--brand);color:var(--brand-ink);border:0;flex:1}.iv-bottom-reg:hover{background:var(--brand-hi)}body:has(.iv) .sc-bot-pop-up-container{bottom:calc(var(--iv-bottom-h,76px) + 12px + env(safe-area-inset-bottom,0px))!important}.iv-mask{z-index:10000;padding:var(--iv-gutter);-webkit-backdrop-filter:blur(6px);background:#000000bd;place-items:center;display:grid;position:fixed;inset:0}.iv-mask[hidden]{display:none}.iv-captcha-box{background:var(--bg-card);border:1px solid var(--border-sub);border-radius:var(--r-panel);box-shadow:var(--panel-shadow);padding:16px}.iv-modal{width:100%;max-width:340px;padding:var(--space-6) var(--space-5) var(--space-5);background:var(--bg-card);border:1px solid var(--border-sub);border-radius:var(--r-panel);box-shadow:var(--panel-shadow);text-align:center}.iv-modal-icon{width:52px;height:52px;margin:0 auto var(--space-4);border-radius:var(--r-circle);color:var(--brand);background:#b8e3511f;place-items:center;display:grid}.iv-modal-icon svg{width:26px;height:26px}.iv-modal-icon.is-error{color:#ff6b6b;background:#ff6b6b1f}.iv-modal-icon.is-error svg{transform:rotate(45deg)scale(.9)}.iv-modal-text{margin:0 0 var(--space-5);font-size:var(--fs-body-lg);font-weight:var(--fw-medium);line-height:1.45}.iv-modal-btn{border-radius:var(--r-md);background:var(--brand);width:100%;height:46px;color:var(--brand-ink);font-family:inherit;font-size:var(--fs-body);font-weight:var(--fw-strong);cursor:pointer;border:0}.iv-modal-btn:hover{background:var(--brand-hi)}.iv-toast{left:50%;bottom:calc(var(--iv-bottom-h) + 24px + env(safe-area-inset-bottom,0px));z-index:10001;border:1px solid var(--border-sub);border-radius:var(--r-pill);color:var(--text-pri);font-size:var(--fs-body-sm);white-space:nowrap;opacity:0;pointer-events:none;background:#141418f5;padding:10px 18px;transition:opacity .2s,transform .2s;position:fixed;transform:translate(-50%,8px)}.iv-toast.is-show{opacity:1;transform:translate(-50%)}@media (width<=480px){.iv{--iv-gutter:16px}.iv-card{padding:var(--space-5) var(--space-4) var(--space-4)}.iv-feat-grid{gap:var(--space-2)}}@media (prefers-reduced-motion:reduce){.iv-collapse,.iv-toast,.iv-submit{transition-duration:.01ms}}#iv-captcha #tianai-captcha,#iv-captcha .tianai-captcha{box-shadow:none;background:0 0}#iv-captcha #tac-loading{background:#ffffff08;border-color:var(--border-sub)!important;color:var(--text-mute)!important;border-radius:var(--r-md)!important}#iv-captcha .tianai-captcha-slider-tip,#iv-captcha .slider-tip{font-family:var(--font-sans)}#iv-captcha .tianai-captcha-bg-img,#iv-captcha #tianai-captcha-slider-bg-img{border-radius:var(--r-md)}#iv-captcha #tianai-captcha-parent>.slider-bottom{z-index:1000;transform:none;background:0 0!important;flex-direction:row-reverse!important;gap:4px!important;width:auto!important;height:auto!important;margin:0!important;padding:0!important;display:flex!important;position:absolute!important;top:8px!important;right:8px!important}#iv-captcha #tianai-captcha-parent>.slider-bottom .logo{display:none!important}#iv-captcha #tianai-captcha-parent{height:276px!important}#iv-captcha #tianai-captcha{transition:none!important}#iv-captcha #tianai-captcha .slider-move{height:36px!important;margin:10px 0!important}#iv-captcha #tianai-captcha .slider-move-track{color:#0000!important;background:#f5f5f5!important;border:none!important;border-radius:999px!important;height:36px!important;font-size:0!important;line-height:36px!important;position:relative!important;overflow:hidden!important;box-shadow:0 2px 6px #00000014!important}#iv-captcha #tianai-captcha .slider-move-track:after{content:attr(data-track-label);z-index:2;color:#88949d;white-space:nowrap;pointer-events:none;justify-content:center;align-items:center;display:flex;position:absolute;inset:0;font-size:14px!important}#iv-captcha #tianai-captcha-slider-move-track-mask{display:none!important}#iv-captcha .tac-custom-fill{z-index:1;box-sizing:content-box;pointer-events:none;background-color:#f7b645;height:100%;position:absolute;top:0;left:0}#iv-captcha #tianai-captcha .slider-move .slider-move-btn{box-shadow:none!important;background-color:#0000!important;background-image:none!important;top:0!important}#iv-captcha .tac-circle-handle{z-index:10;letter-spacing:-2px;color:#5b9bd5;pointer-events:none;will-change:transform;background-color:#fff;border-radius:50%;justify-content:center;align-items:center;width:36px;height:36px;font-size:12px;font-weight:700;display:flex;position:absolute;top:50%;left:0;transform:translateY(-50%);box-shadow:0 2px 8px #00000026}