/* ===== 登录/注册页面样式 ===== */

/* 页面容器 */
.auth-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px 48px;
    overflow: auto;
}

.auth-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    width: 100%;
    max-width: 480px;
}

/* 卡片 */
.auth-card {
    width: 100%;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 32px 36px;
}

/* 头部 */
.auth-header {
    text-align: center;
    margin-bottom: 24px;
}

.auth-logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--primary);
    margin-bottom: 12px;
}

.auth-logo svg {
    width: 36px;
    height: 36px;
}

.auth-logo span {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-1);
}

.auth-subtitle {
    font-size: 14px;
    color: var(--text-3);
}

/* 表单 */
.auth-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-2);
}

.form-label svg {
    width: 16px;
    height: 16px;
    color: var(--primary);
}

.label-optional {
    font-size: 12px;
    color: var(--text-3);
    font-weight: 400;
}

.form-input {
    padding: 10px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-1);
    font-size: 14px;
    transition: border-color 0.15s, box-shadow 0.15s;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.1);
}

.form-input::placeholder {
    color: var(--text-3);
}

/* 优惠码提示 */
.promo-tip {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 12px;
    background: rgba(251, 191, 36, 0.08);
    border: 1px solid rgba(251, 191, 36, 0.2);
    border-radius: var(--radius);
    font-size: 12px;
    color: var(--text-2);
}

.promo-tip svg {
    width: 18px;
    height: 18px;
    color: #0088cc;
    flex-shrink: 0;
}

.promo-tip a {
    color: #0088cc;
    font-weight: 500;
}

.promo-tip a:hover {
    text-decoration: underline;
}

.promo-tip strong {
    color: var(--warning);
}

/* 提交按钮 */
.btn-block {
    width: 100%;
    padding: 12px 24px;
    font-size: 15px;
    font-weight: 600;
    margin-top: 4px;
}

.btn-block svg {
    width: 18px;
    height: 18px;
}

/* 底部链接 */
.auth-footer {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
}

.auth-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--primary);
    transition: opacity 0.15s;
}

.auth-link:hover {
    opacity: 0.8;
}

.auth-link.muted {
    color: var(--text-3);
}

.auth-link.muted svg {
    width: 14px;
    height: 14px;
}

.auth-link.muted:hover {
    color: var(--text-2);
}

/* 返回首页 */
.back-home {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--text-3);
    transition: color 0.15s;
}

.back-home svg {
    width: 16px;
    height: 16px;
}

.back-home:hover {
    color: var(--primary);
}

/* 响应式 */
@media (max-width: 480px) {
    .auth-card {
        padding: 32px 24px;
    }
    
    .auth-logo svg {
        width: 30px;
        height: 30px;
    }
    
    .auth-logo span {
        font-size: 18px;
    }
}


/* ===== 2026 动态视觉升级：只增加视觉动效，不改变业务逻辑 ===== */
.fx-aurora{position:fixed;inset:-20%;z-index:-3;pointer-events:none;background:conic-gradient(from 90deg at 50% 50%,transparent,rgba(22,224,208,.11),transparent 28%,rgba(255,139,50,.06),transparent 62%);filter:blur(55px);animation:fxAurora 22s linear infinite}
.fx-scan{position:fixed;left:0;right:0;top:-12vh;height:12vh;z-index:9998;pointer-events:none;background:linear-gradient(180deg,transparent,rgba(22,224,208,.035),rgba(22,224,208,.12),transparent);mix-blend-mode:screen;animation:fxScan 8s linear infinite}
.fx-particles{position:fixed;inset:0;z-index:-1;pointer-events:none;overflow:hidden}.fx-particles i{position:absolute;left:var(--x);top:var(--y);width:var(--s);height:var(--s);border-radius:50%;background:#66fff1;box-shadow:0 0 10px #16e0d0;opacity:.35;animation:fxFloat var(--d) ease-in-out var(--delay) infinite alternate}
.fx-reveal{opacity:0;transform:translateY(18px) scale(.985);filter:blur(7px);transition:opacity .75s ease var(--fx-delay),transform .75s cubic-bezier(.2,.8,.2,1) var(--fx-delay),filter .75s ease var(--fx-delay)}.fx-show .fx-reveal{opacity:1;transform:none;filter:none}
.intro{transform:translate3d(var(--px,0),var(--py,0),0);transition:transform .25s ease,border-color .35s ease,box-shadow .35s ease}.intro:hover{border-color:rgba(80,255,241,.5);box-shadow:0 0 0 1px rgba(22,224,208,.08),0 28px 70px rgba(0,0,0,.34),inset 0 0 50px rgba(22,224,208,.05)}
.intro h1{background:linear-gradient(90deg,#fff,#72fff4,#fff);background-size:220% auto;color:transparent;background-clip:text;-webkit-background-clip:text;animation:fxTitle 5s linear infinite}
.panel{transition:transform .32s cubic-bezier(.2,.8,.2,1),border-color .32s ease,box-shadow .32s ease}.panel:hover{transform:translateY(-4px);border-color:rgba(22,224,208,.48);box-shadow:inset 0 0 45px rgba(0,255,230,.045),0 24px 70px rgba(0,0,0,.42),0 0 28px rgba(22,224,208,.08)}
.panel-header:after{content:"";position:absolute;left:0;bottom:-1px;width:28%;height:1px;background:linear-gradient(90deg,transparent,#16e0d0,transparent);animation:fxLine 4s ease-in-out infinite}
.btn-start,button,.nav-link{transform:translate(var(--mx,0),var(--my,0));will-change:transform;overflow:hidden}.btn-start:after{content:"";position:absolute;inset:-40% auto -40% -30%;width:20%;transform:skewX(-20deg);background:linear-gradient(90deg,transparent,rgba(255,255,255,.65),transparent);animation:fxShine 3.6s ease-in-out infinite}
.task-circle{animation:fxCore 3.2s ease-in-out infinite}.task-circle svg,.task-circle .progress-ring{filter:drop-shadow(0 0 7px rgba(22,224,208,.65))}
.fx-clock{margin-left:auto;padding:6px 10px;border:1px solid rgba(22,224,208,.2);background:rgba(0,0,0,.22);font:11px/1 Consolas,monospace;letter-spacing:1px;color:#6ffff4;clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px)}
.fx-ripple{position:absolute;border-radius:50%;pointer-events:none;background:rgba(255,255,255,.35);transform:scale(0);animation:fxRipple .65s ease-out}
.input-box textarea:focus,input:focus,select:focus{box-shadow:0 0 0 1px rgba(22,224,208,.35),0 0 25px rgba(22,224,208,.12)!important}
@keyframes fxAurora{to{transform:rotate(360deg)}}@keyframes fxScan{to{transform:translateY(124vh)}}@keyframes fxFloat{to{transform:translate3d(28px,-45px,0);opacity:.75}}@keyframes fxTitle{to{background-position:220% center}}@keyframes fxLine{0%,100%{transform:translateX(-20%);opacity:.35}50%{transform:translateX(290%);opacity:1}}@keyframes fxShine{0%,55%{left:-35%;opacity:0}70%{opacity:1}100%{left:125%;opacity:0}}@keyframes fxCore{50%{filter:drop-shadow(0 0 22px rgba(22,224,208,.38));transform:scale(1.018)}}@keyframes fxRipple{to{transform:scale(2.5);opacity:0}}
@media(prefers-reduced-motion:reduce){.fx-aurora,.fx-scan,.fx-particles,.intro h1,.task-circle,.btn-start:after,.panel-header:after{animation:none!important}.fx-reveal{opacity:1!important;transform:none!important;filter:none!important}}