/* ============================================================
   登录页 F1-Current（handoff README 对照）
   两栏布局：460px 表单 + 右栏紫色渐变产品预览（3D 倾斜轮播）
   ============================================================ */

:root {
    --login-indigo: #4F46E5;
    --login-indigo-hover: #4338CA;
    --login-indigo-deep: #3730A3;
    --login-indigo-light: #818CF8;
    --login-indigo-bg: #EEF2FF;
    --login-indigo-bg2: #FAF5FF;
    --login-indigo-border: #E0E7FF;
    --login-indigo-wave: #C7D2FE;
    --login-indigo-shadow: rgba(79, 70, 229, .28);
    --login-slate-900: #0F172A;
    --login-slate-700: #334155;
    --login-slate-600: #475569;
    --login-slate-500: #64748B;
    --login-slate-400: #94A3B8;
    --login-slate-300: #CBD5E1;
    --login-slate-200: #E2E8F0;
    --login-slate-100: #F1F5F9;
    --login-slate-50: #F8FAFC;
    --login-danger: #EF4444;
    --login-danger-bg: #FEF2F2;
    --login-warn-bg: #FEF3C7;
    --login-warn-text: #92400E;
    --login-info-bg: #DBEAFE;
    --login-info-text: #1E40AF;
    --login-ok-bg: #DCFCE7;
    --login-ok-text: #166534;
    --login-font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    height: 100%;
    background: #fff;
    font-family: var(--login-font);
    color: var(--login-slate-900);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===================== 总体骨架 ===================== */

.login-shell {
    display: grid;
    grid-template-columns: 460px 1fr;
    min-height: 100vh;
    background: #fff;
}

/* ===================== 左栏：表单 ===================== */

.login-form-pane {
    padding: 56px 60px;
    border-right: 1px solid var(--login-slate-100);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.brand-mark {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 2px;
    color: var(--login-slate-900);
    text-decoration: none;
}

.brand-mark__square {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, #4F46E5 0%, #6366F1 55%, #7C6CEF 100%);
    border-radius: 9px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-shadow:
        0 6px 14px -4px rgba(79, 70, 229, .5),
        inset 0 1px 0 rgba(255, 255, 255, .25);
    position: relative;
    overflow: hidden;
}

/* Brand square 上的一点高光，模拟图标的立体感 */
.brand-mark__square::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 50%;
    background: linear-gradient(180deg, rgba(255, 255, 255, .18), transparent);
    pointer-events: none;
}

.brand-mark__text { letter-spacing: 2px; }

.login-form-body {
    margin-top: auto;
    margin-bottom: auto;
    padding: 40px 0;
}

.login-heading {
    font-size: 32px;
    font-weight: 600;
    color: var(--login-slate-900);
    margin: 0 0 10px;
    letter-spacing: 0;
}

.login-sub {
    font-size: 14px;
    color: var(--login-slate-500);
    margin: 0 0 28px;
}

/* 表单字段 */

.login-form {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.field { display: block; }

.field__label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--login-slate-700);
    margin-bottom: 6px;
}

.field__input {
    position: relative;
    display: block;
}

.field__icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--login-slate-400);
    display: inline-flex;
    pointer-events: none;
}

.field__control {
    width: 100%;
    padding: 12px 12px 12px 36px;
    border: 1px solid var(--login-slate-200);
    border-radius: 8px;
    font-size: 14px;
    background: #fff;
    color: var(--login-slate-900);
    outline: none;
    transition: border-color .15s, box-shadow .15s;
    font-family: inherit;
}

.field__control::placeholder { color: var(--login-slate-400); }

.field__control:focus {
    border-color: var(--login-indigo);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, .12);
}

.field__control--with-action { padding-right: 40px; }

.field__action {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    width: var(--tap-icon-sm);
    height: var(--tap-icon-sm);
    cursor: pointer;
    color: var(--login-slate-400);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    transition: color .15s, background .15s;
}

.field__action:hover {
    color: var(--login-slate-600);
    background: var(--login-slate-100);
}

/* 触屏：眼睛切换按钮放大到触控目标，输入框右侧让出空间 */
@media (pointer: coarse) {
    .field__control--with-action { padding-right: 52px; }
    .field__action { right: 2px; }
}

/* 选项行 */

.form-options {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 13px;
}

.remember-me {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: var(--tap-control-min-h);
    color: var(--login-slate-500);
    cursor: pointer;
    user-select: none;
}

.remember-me input[type="checkbox"] {
    width: 14px;
    height: 14px;
    accent-color: var(--login-indigo);
    margin: 0;
    cursor: pointer;
}

.forgot-link {
    color: var(--login-indigo);
    font-size: 12px;
    text-decoration: none;
    cursor: pointer;
}

.forgot-link:hover { text-decoration: underline; }

/* 错误态 */

.form-error {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--login-danger-bg);
    color: var(--login-danger);
    border: 1px solid rgba(239, 68, 68, .2);
    border-radius: 8px;
    padding: 10px 12px;
    font-size: 13px;
}

.form-error.shake { animation: login-shake .4s ease-in-out; }

@keyframes login-shake {
    0%, 100% { transform: translateX(0); }
    20%, 60% { transform: translateX(-6px); }
    40%, 80% { transform: translateX(6px); }
}

/* 主按钮 / SSO 按钮 */

.btn-login {
    margin-top: 4px;
    padding: 12px 0;
    border: none;
    border-radius: 8px;
    background: var(--login-indigo);
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 2px;
    cursor: pointer;
    box-shadow: 0 10px 24px -10px rgba(79, 70, 229, .6);
    transition: background .15s, transform .15s, box-shadow .15s;
    font-family: inherit;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-login:hover:not(:disabled) {
    background: var(--login-indigo-hover);
    transform: translateY(-1px);
    box-shadow: 0 14px 28px -12px rgba(79, 70, 229, .65);
}

.btn-login:disabled { cursor: not-allowed; opacity: .75; }

.btn-loading { display: inline-flex; align-items: center; gap: 8px; }

.spinner { animation: login-spin .9s linear infinite; }

@keyframes login-spin {
    from { transform: rotate(0); }
    to { transform: rotate(360deg); }
}

.btn-sso {
    padding: 11px 0;
    border: 1px solid var(--login-indigo-border);
    border-radius: 8px;
    background: #fff;
    color: var(--login-slate-700);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: background .15s, border-color .15s;
    font-family: inherit;
}

.btn-sso svg { color: var(--login-indigo); stroke: var(--login-indigo); }

.btn-sso:hover {
    background: var(--login-indigo-bg);
    border-color: var(--login-indigo-light);
}

/* 版本 / 版权 */

.login-meta {
    margin-top: 28px;
    display: flex;
    justify-content: flex-end;
    font-size: 11px;
    color: var(--login-slate-400);
}

.login-copy {
    margin-top: auto;
    font-size: 11px;
    color: var(--login-slate-300);
}

/* ===================== 右栏：产品预览 ===================== */

.login-preview-pane {
    background: linear-gradient(135deg, var(--login-indigo-bg) 0%, var(--login-indigo-bg2) 100%);
    padding: 56px 64px 0 72px;
    position: relative;
    overflow: hidden;
    min-height: 100vh;
}

.preview-dots {
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle at 1px 1px, var(--login-indigo-wave) 1px, transparent 0);
    background-size: 24px 24px;
    opacity: .4;
    pointer-events: none;
    z-index: 1;
}

/* 环境光 - 柔和漂移的紫色光团 */
.preview-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(90px);
    pointer-events: none;
    z-index: 0;
    will-change: transform;
}

.preview-orb--violet {
    width: 440px;
    height: 440px;
    background: radial-gradient(circle, rgba(167, 139, 250, .55) 0%, rgba(167, 139, 250, 0) 70%);
    top: -140px;
    right: -80px;
    animation: login-orb-drift-a 22s cubic-bezier(.4, 0, .6, 1) infinite;
}

.preview-orb--indigo {
    width: 360px;
    height: 360px;
    background: radial-gradient(circle, rgba(129, 140, 248, .5) 0%, rgba(129, 140, 248, 0) 70%);
    bottom: -120px;
    left: 18%;
    animation: login-orb-drift-b 28s cubic-bezier(.4, 0, .6, 1) infinite;
}

@keyframes login-orb-drift-a {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(-70px, 50px) scale(1.08); }
}

@keyframes login-orb-drift-b {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(90px, -40px) scale(.92); }
}

/* 同心圆环 */
.preview-rings {
    position: absolute;
    width: 700px;
    height: 700px;
    right: -240px;
    top: 30%;
    pointer-events: none;
    z-index: 1;
    opacity: .7;
    animation: login-rings-rotate 60s linear infinite;
}

@keyframes login-rings-rotate {
    from { transform: rotate(0); }
    to { transform: rotate(360deg); }
}

.preview-headline { position: relative; z-index: 2; }

.preview-eyebrow {
    font-size: 12px;
    color: var(--login-indigo);
    font-weight: 700;
    letter-spacing: 3px;
    margin: 0 0 10px;
}

.preview-title {
    font-size: 32px;
    font-weight: 600;
    color: var(--login-slate-900);
    line-height: 1.25;
    letter-spacing: -0.5px;
    margin: 0 0 44px;
    max-width: 560px;
}

.preview-stage {
    position: relative;
    z-index: 2;
    padding-bottom: 80px;
}

/* 倾斜预览卡（核心视觉） */
/* CSS 自定义属性由 JS 的 initParallax() 写入：
   --mx / --my  光标距中心的归一化偏移（-1 .. 1），驱动 3D 倾斜
   --sx / --sy  光标在卡片内的百分比位置，驱动镜面高光位置
   --lift       悬停时抬升系数（0 .. 1） */
.preview-card {
    --mx: 0;
    --my: 0;
    --sx: 50%;
    --sy: 50%;
    --lift: 0;
    position: relative;
    background: #fff;
    border: 1px solid #E5E7EB;
    border-radius: 14px;
    box-shadow:
        0 40px 100px -30px var(--login-indigo-shadow),
        0 4px 12px -6px rgba(0, 0, 0, .05);
    transform:
        perspective(1800px)
        rotateY(calc(-9deg + var(--mx) * 5deg))
        rotateX(calc(3deg + var(--my) * -5deg))
        translateY(calc(var(--lift) * -6px));
    transform-origin: left center;
    transform-style: preserve-3d;
    width: 780px;
    height: 420px;
    max-width: 100%;
    overflow: hidden;
    /* Apple 的缓动曲线：快起慢收，配合 JS 的 RAF 插值叠加出"追赶感" */
    transition:
        transform .9s cubic-bezier(.2, .8, .2, 1),
        box-shadow .9s cubic-bezier(.2, .8, .2, 1);
    will-change: transform;
}

.preview-card:hover {
    box-shadow:
        0 60px 140px -35px rgba(79, 70, 229, .45),
        0 12px 30px -10px rgba(15, 23, 42, .12);
}

/* 镜面高光：跟随光标的柔和白色光晕，用 overlay 混合更接近真实光照 */
.preview-shine {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 5;
    opacity: 0;
    background: radial-gradient(
        520px circle at var(--sx) var(--sy),
        rgba(255, 255, 255, .38) 0%,
        rgba(255, 255, 255, 0) 42%
    );
    mix-blend-mode: overlay;
    transition: opacity .45s cubic-bezier(.2, .8, .2, 1);
    border-radius: inherit;
}

.preview-card:hover .preview-shine { opacity: 1; }

/* 悬停时的渐变描边辉光（双层边框感） */
.preview-glow-border {
    position: absolute;
    inset: -1px;
    border-radius: 15px;
    pointer-events: none;
    z-index: 4;
    background: linear-gradient(
        135deg,
        rgba(129, 140, 248, .55),
        rgba(167, 139, 250, .15) 40%,
        rgba(129, 140, 248, 0) 60%,
        rgba(167, 139, 250, .5)
    );
    opacity: 0;
    transition: opacity .5s cubic-bezier(.2, .8, .2, 1);
    -webkit-mask:
        linear-gradient(#000 0 0) content-box,
        linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
            mask-composite: exclude;
    padding: 1px;
}

.preview-card:hover .preview-glow-border { opacity: 1; }

.slide {
    position: absolute;
    inset: 0;
    padding: 18px;
    font-size: 11px;
    opacity: 0;
    transform: translateY(10px) scale(.98);
    transition:
        opacity .55s cubic-bezier(.2, .8, .2, 1),
        transform .65s cubic-bezier(.2, .8, .2, 1);
    pointer-events: none;
    background: #fff;
    overflow: hidden;
}

.slide.active {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}

.mac-chrome {
    display: flex;
    gap: 6px;
    align-items: center;
    margin-bottom: 14px;
}

.mac-chrome i {
    width: 10px;
    height: 10px;
    border-radius: 999px;
    display: inline-block;
}

.mac-chrome i:nth-child(1) { background: #FCA5A5; }
.mac-chrome i:nth-child(2) { background: #FCD34D; }
.mac-chrome i:nth-child(3) { background: #86EFAC; }

.col-title {
    font-size: 10px;
    color: var(--login-slate-500);
    font-weight: 600;
    margin-bottom: 8px;
}

.col-title.indigo { color: var(--login-indigo); }

/* Slide: detail */
.slide-detail {
    display: grid;
    grid-template-columns: 1fr 1.5fr 1fr;
    gap: 12px;
}

.detail-col {
    background: var(--login-slate-50);
    border-radius: 8px;
    padding: 10px;
}

.detail-col--mid { background: transparent; padding: 0; }

.summary-item { margin-bottom: 9px; }

.summary-time {
    font-size: 9px;
    color: var(--login-slate-400);
    margin-bottom: 3px;
}

.bar {
    height: 5px;
    background: var(--login-slate-200);
    border-radius: 2px;
    margin-bottom: 3px;
}

.bubble {
    background: var(--login-indigo-bg);
    border-radius: 8px;
    padding: 10px;
    margin-bottom: 8px;
}

.bubble-name {
    font-size: 10px;
    color: var(--login-indigo);
    font-weight: 600;
    margin-bottom: 4px;
}

.bubble-zh {
    color: var(--login-slate-600);
    line-height: 1.6;
}

.bubble-en {
    margin-top: 6px;
    padding: 6px;
    background: #fff;
    border-radius: 6px;
    color: var(--login-slate-500);
    font-style: italic;
}

.audio-bar {
    background: #fff;
    border: 1px solid #E5E7EB;
    border-radius: 8px;
    padding: 10px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.audio-play {
    width: 18px;
    height: 18px;
    border-radius: 999px;
    background: var(--login-indigo);
    color: #fff;
    font-size: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.audio-wave {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 1.5px;
}

.audio-wave i {
    width: 2px;
    background: var(--login-indigo-wave);
    border-radius: 1px;
    display: inline-block;
}

.audio-time {
    font-size: 9px;
    color: var(--login-slate-500);
}

.ai-item {
    padding: 8px;
    background: #fff;
    border-radius: 6px;
    margin-bottom: 6px;
    font-size: 10px;
    color: var(--login-slate-700);
    display: flex;
    align-items: center;
    gap: 6px;
}

.ai-item .dot {
    width: 4px;
    height: 4px;
    background: var(--login-indigo);
    border-radius: 999px;
    display: inline-block;
}

/* Slide: live */
.live-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.rec-dot {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    color: var(--login-danger);
    font-weight: 600;
    letter-spacing: 1px;
}

.rec-dot i {
    width: 7px;
    height: 7px;
    background: var(--login-danger);
    border-radius: 999px;
    box-shadow: 0 0 0 3px rgba(239, 68, 68, .2);
    display: inline-block;
}

.live-title { color: var(--login-slate-500); font-size: 11px; }

.live-wave {
    background: #fff;
    border: 1px solid #E5E7EB;
    border-radius: 10px;
    height: 82px;
    margin-bottom: 10px;
    position: relative;
    overflow: hidden;
    background-image: repeating-linear-gradient(
        to right,
        var(--login-indigo) 0 2px,
        transparent 2px 5px
    );
    background-size: 67% 50%;
    background-position: 14px center;
    background-repeat: no-repeat;
}

.live-wave::before {
    content: "";
    position: absolute;
    inset: 14px;
    background: repeating-linear-gradient(
        to right,
        var(--login-indigo) 0 2px,
        transparent 2px 5px
    );
    clip-path: polygon(0 50%, 3% 30%, 6% 60%, 9% 20%, 12% 70%, 15% 35%, 18% 55%, 21% 15%, 24% 65%, 27% 40%, 30% 60%, 33% 25%, 36% 70%, 39% 45%, 42% 55%, 45% 20%, 48% 65%, 51% 40%, 54% 60%, 57% 30%, 60% 55%, 63% 40%, 66% 60%, 100% 50%, 100% 50%, 0 50%);
    opacity: 0;
}

.live-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 10px;
}

.live-transcript {
    background: var(--login-indigo-bg);
    border-radius: 8px;
    padding: 12px;
}

.live-transcript p {
    margin: 0;
    color: var(--login-slate-700);
    line-height: 1.7;
}

.cursor {
    color: var(--login-indigo);
    animation: login-blink 1s infinite;
}

@keyframes login-blink { 50% { opacity: 0; } }

.live-extract {
    background: #fff;
    border: 1px solid #E5E7EB;
    border-radius: 8px;
    padding: 12px;
}

.pill-row {
    font-size: 10px;
    margin-bottom: 6px;
    color: var(--login-slate-600);
}

.pill {
    background: var(--login-indigo-bg);
    padding: 1px 6px;
    border-radius: 3px;
    color: var(--login-indigo);
    font-weight: 600;
    font-size: 9px;
    margin-right: 6px;
}

/* Slide: list */
.list-filters {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
}

.chip {
    background: #fff;
    border: 1px solid #E5E7EB;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 10px;
    color: var(--login-slate-500);
}

.chip--primary {
    background: var(--login-indigo);
    color: #fff;
    font-weight: 600;
    border-color: var(--login-indigo);
    padding: 5px 12px;
}

.list-row {
    background: #fff;
    border: 1px solid #E5E7EB;
    border-radius: 8px;
    padding: 10px;
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 10px;
}

.list-main { flex: 1; }

.list-title {
    color: var(--login-slate-900);
    font-weight: 600;
    margin-bottom: 2px;
}

.list-time {
    color: var(--login-slate-400);
    font-size: 9px;
}

.tag {
    background: var(--login-slate-100);
    padding: 1px 6px;
    border-radius: 3px;
    color: var(--login-slate-600);
    font-size: 9px;
}

.score {
    color: var(--login-indigo);
    font-weight: 600;
}

.dot-mute {
    width: 6px;
    height: 6px;
    background: var(--login-slate-300);
    border-radius: 999px;
    display: inline-block;
}

/* Slide: todo */
.todo-board {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 10px;
}

.todo-col-title {
    font-size: 10px;
    font-weight: 600;
    color: var(--login-slate-700);
    margin-bottom: 8px;
}

.todo-badge {
    padding: 0 6px;
    border-radius: 3px;
    font-size: 9px;
    margin-left: 4px;
}

.todo-badge--warn { background: var(--login-warn-bg); color: var(--login-warn-text); }
.todo-badge--info { background: var(--login-info-bg); color: var(--login-info-text); }
.todo-badge--ok   { background: var(--login-ok-bg);   color: var(--login-ok-text); }

.todo-card {
    background: #fff;
    border: 1px solid #E5E7EB;
    border-radius: 6px;
    padding: 8px;
    margin-bottom: 6px;
}

.todo-text {
    color: var(--login-slate-900);
    font-size: 10px;
    margin-bottom: 4px;
}

.todo-src {
    font-size: 9px;
    color: var(--login-slate-400);
}

/* 指示条 */
.preview-indicator {
    margin-top: 24px;
    display: flex;
    gap: 14px;
    align-items: center;
    transform: perspective(1800px) rotateY(-9deg);
    transform-origin: left center;
}

.ind-item {
    display: flex;
    align-items: center;
    gap: 6px;
}

.ind-bar {
    width: 8px;
    height: 3px;
    border-radius: 2px;
    background: var(--login-slate-300);
    transition: width .3s ease, background .3s ease;
    display: inline-block;
}

.ind-label {
    font-size: 11px;
    color: var(--login-slate-400);
    font-weight: 500;
    display: none;
}

.ind-item.active .ind-bar {
    width: 28px;
    background: var(--login-indigo);
}

.ind-item.active .ind-label {
    color: var(--login-indigo);
    font-weight: 600;
    display: inline;
}

/* ============ 浮动统计卡片 ============
   双层结构：
   - 外层 .stat-chip-wrap  负责绝对定位 + 自动浮动动画（始终运行）
   - 内层 .stat-chip       负责玻璃卡片的视觉 + 光标驱动的漂移 + hover 反馈
   这样 keyframe 的 transform 和 hover/parallax 的 transform 不会互相覆盖。
   每张卡使用不同的 keyframe + duration + 负 delay，打散节奏避免机械感。 */

.stat-chip-wrap {
    position: absolute;
    z-index: 6;
    animation-timing-function: ease-in-out;
    animation-iteration-count: infinite;
    will-change: transform;
    pointer-events: auto;
}

.stat-chip {
    --mx: 0px;
    --my: 0px;
    --sc: 1;
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, .92);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, .8);
    border-radius: 12px;
    padding: 10px 14px;
    box-shadow:
        0 20px 50px -20px rgba(79, 70, 229, .25),
        0 4px 12px -6px rgba(15, 23, 42, .08);
    font-size: 12px;
    transform: translate3d(var(--mx), var(--my), 0) scale(var(--sc));
    transition:
        transform .5s cubic-bezier(.2, .8, .2, 1),
        box-shadow .4s cubic-bezier(.2, .8, .2, 1);
    will-change: transform;
}

.stat-chip:hover {
    --sc: 1.05;
    box-shadow:
        0 30px 70px -20px rgba(79, 70, 229, .42),
        0 8px 18px -8px rgba(15, 23, 42, .15);
}

.stat-chip__num {
    width: 34px;
    height: 34px;
    border-radius: 9px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 13px;
    flex-shrink: 0;
}

.stat-chip__num--indigo {
    background: var(--login-indigo-bg);
    color: var(--login-indigo);
}

.stat-chip__num--warm {
    background: var(--login-warn-bg);
    color: var(--login-warn-text);
    font-size: 12px;
}

.stat-chip__body { line-height: 1.35; }

.stat-chip__title {
    font-weight: 600;
    color: var(--login-slate-900);
    font-size: 12px;
}

.stat-chip__sub {
    font-size: 11px;
    color: var(--login-slate-400);
    display: inline-flex;
    gap: 6px;
    align-items: center;
    margin-top: 2px;
}

.trend-up {
    color: #16a34a;
    font-weight: 600;
}

.stat-chip__hero {
    display: inline-flex;
    gap: 10px;
    align-items: center;
    margin-top: 2px;
}

.stat-chip__big {
    font-size: 22px;
    font-weight: 700;
    color: var(--login-indigo);
    letter-spacing: -.5px;
    line-height: 1;
}

.sparkline {
    display: inline-flex;
    gap: 2.5px;
    align-items: flex-end;
    height: 16px;
}

.sparkline i {
    width: 3px;
    background: var(--login-indigo);
    border-radius: 1.5px;
    display: inline-block;
    opacity: .85;
}

.live-pulse {
    position: relative;
    width: 10px;
    height: 10px;
    flex-shrink: 0;
}

.live-pulse i {
    position: absolute;
    inset: 0;
    background: var(--login-danger);
    border-radius: 999px;
    animation: login-pulse-ring 1.6s cubic-bezier(.2, .8, .2, 1) infinite;
}

.live-pulse::before,
.live-pulse::after {
    content: "";
    position: absolute;
    inset: 0;
    border: 2px solid var(--login-danger);
    border-radius: 999px;
    animation: login-pulse-ring 1.6s cubic-bezier(.2, .8, .2, 1) infinite;
}

.live-pulse::after { animation-delay: .7s; }

@keyframes login-pulse-ring {
    0% { transform: scale(1); opacity: .9; }
    80%, 100% { transform: scale(2.4); opacity: 0; }
}

/* 四张卡片的位置（外层 wrap） + 个性化 keyframes
   —— 每张 keyframe 幅度 ~20-28px 的 Y 方向，X 向 ±10px，并带轻微旋转。
   —— 负 animation-delay 让页面一打开就已经"在半空中"，不是所有卡同时从 0 起步。 */

.stat-chip-wrap--top {
    top: -30px;
    left: 420px;
    animation-name: chip-float-a;
    animation-duration: 7.5s;
    animation-delay: -0.3s;
}

.stat-chip-wrap--accuracy {
    top: 130px;
    right: -16px;
    animation-name: chip-float-b;
    animation-duration: 8.8s;
    animation-delay: -2.1s;
}

.stat-chip-wrap--live {
    top: 340px;
    left: -28px;
    animation-name: chip-float-c;
    animation-duration: 6.8s;
    animation-delay: -3.7s;
}

.stat-chip-wrap--duration {
    bottom: -20px;
    right: 140px;
    animation-name: chip-float-d;
    animation-duration: 9.2s;
    animation-delay: -1.5s;
}

.stat-chip-wrap--accuracy .stat-chip { padding: 12px 16px; }

/* 四个不同的漂浮轨迹 */
@keyframes chip-float-a {
    0%   { transform: translate(0, 0) rotate(0deg); }
    25%  { transform: translate(5px, -14px) rotate(.9deg); }
    50%  { transform: translate(-4px, -26px) rotate(-.5deg); }
    75%  { transform: translate(-9px, -10px) rotate(-1deg); }
    100% { transform: translate(0, 0) rotate(0deg); }
}

@keyframes chip-float-b {
    0%   { transform: translate(0, 0) rotate(0deg); }
    30%  { transform: translate(-7px, 14px) rotate(-.8deg); }
    55%  { transform: translate(10px, 22px) rotate(1deg); }
    80%  { transform: translate(4px, 6px) rotate(.4deg); }
    100% { transform: translate(0, 0) rotate(0deg); }
}

@keyframes chip-float-c {
    0%   { transform: translate(0, 0) rotate(0deg); }
    20%  { transform: translate(12px, -12px) rotate(1.2deg); }
    45%  { transform: translate(-6px, -20px) rotate(-.6deg); }
    70%  { transform: translate(-11px, 8px) rotate(-.4deg); }
    100% { transform: translate(0, 0) rotate(0deg); }
}

@keyframes chip-float-d {
    0%   { transform: translate(0, 0) rotate(0deg); }
    25%  { transform: translate(-7px, -22px) rotate(-1deg); }
    50%  { transform: translate(8px, -14px) rotate(.8deg); }
    75%  { transform: translate(5px, 18px) rotate(.5deg); }
    100% { transform: translate(0, 0) rotate(0deg); }
}

/* prefers-reduced-motion：关闭所有装饰性运动 */
@media (prefers-reduced-motion: reduce) {
    .preview-orb,
    .preview-rings,
    .stat-chip-wrap,
    .live-pulse i,
    .live-pulse::before,
    .live-pulse::after,
    .cursor,
    .mini-cursor {
        animation: none !important;
    }

    .preview-card,
    .slide,
    .stat-chip,
    .preview-shine,
    .preview-glow-border,
    .mobile-preview__track,
    .mobile-ind {
        transition: none !important;
    }
}

/* ===================== Toast ===================== */

.toast {
    position: fixed;
    bottom: 48px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: var(--login-slate-900);
    color: #fff;
    padding: 10px 18px;
    border-radius: 999px;
    font-size: 13px;
    box-shadow: 0 10px 30px -10px rgba(0, 0, 0, .35);
    opacity: 0;
    transition: opacity .25s ease, transform .25s ease;
    z-index: 9999;
    pointer-events: none;
}

.toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* ============================================================
   响应式：≤1024 移动端 M2-C 布局
   - 单列 + 柔和光晕 + 水平滑动预览条（4 张迷你切片）
   - 标题/副标题共用一份 DOM，移动端仅调整尺寸与间距
   ============================================================ */

/* 默认（桌面）：隐藏 mobile-only 元素 */
.mobile-preview {
    display: none;
}

@media (max-width: 1024px) {
    body {
        background: linear-gradient(180deg, #fff 0%, #fafaff 100%);
    }

    .login-shell {
        grid-template-columns: 1fr;
        min-height: 100vh;
    }

    /* 桌面右栏完全隐藏 */
    .login-preview-pane { display: none; }

    /* 左栏转 mobile 单列布局，带光晕 */
    .login-form-pane {
        max-width: none;
        margin: 0;
        border-right: none;
        width: 100%;
        padding: 60px 24px 24px;
        position: relative;
        overflow: hidden;
    }

    /* 两坨柔和光晕：右上偏紫、左中偏 indigo */
    .login-form-pane::before,
    .login-form-pane::after {
        content: "";
        position: absolute;
        border-radius: 50%;
        filter: blur(50px);
        pointer-events: none;
        z-index: 0;
        opacity: .65;
    }
    .login-form-pane::before {
        width: 300px; height: 300px;
        top: -100px; right: -120px;
        background: var(--login-indigo-bg2);
    }
    .login-form-pane::after {
        width: 240px; height: 240px;
        top: 160px; left: -100px;
        background: var(--login-indigo-bg);
    }

    /* 光晕不遮主内容 */
    .brand-mark,
    .login-form-body,
    .login-copy {
        position: relative;
        z-index: 1;
    }

    /* Logo 方块稍大，里面的 W 也稍大 */
    .brand-mark__square {
        width: 34px;
        height: 34px;
        border-radius: 9px;
    }
    .brand-mark__square svg {
        width: 20px;
        height: 20px;
    }

    /* mobile 标题尺寸 */
    .login-heading {
        font-size: 26px;
        font-weight: 700;
        color: var(--login-slate-900);
        letter-spacing: 0;
        line-height: 1.25;
        margin: 22px 0 6px;
    }
    .login-sub {
        font-size: 13px;
        color: var(--login-slate-500);
        line-height: 1.6;
        margin: 0 0 18px;
    }

    /* login-form-body 不再垂直居中，让内容从上往下堆叠 */
    .login-form-body {
        margin-top: 0;
        margin-bottom: 0;
        padding: 0;
        flex: 1;
    }

    /* ========== 移动预览条 ========== */

    .mobile-preview {
        display: block;
        margin-bottom: 18px;
    }

    .mobile-preview__label {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 18px;
        margin-bottom: 8px;
    }

    .mobile-preview__eyebrow {
        font-size: 11px;
        color: var(--login-slate-500);
        letter-spacing: 1px;
        text-transform: uppercase;
        font-weight: 600;
    }

    .mobile-preview__chip {
        display: inline-flex;
        align-items: center;
        gap: 5px;
        background: rgba(79, 70, 229, .08);
        color: var(--login-indigo);
        padding: 3px 9px;
        border-radius: 999px;
        font-size: 10.5px;
        font-weight: 600;
    }

    .mobile-preview__chip-dot {
        width: 5px;
        height: 5px;
        border-radius: 50%;
        background: var(--login-indigo);
        display: inline-block;
    }

    .mobile-preview__strip {
        height: 150px;
        border-radius: 10px;
        overflow: hidden;
        border: 1px solid var(--login-slate-100);
        background: #fff;
        box-shadow: 0 16px 36px -20px var(--login-indigo-shadow);
        margin-bottom: 10px;
    }

    .mobile-preview__track {
        display: flex;
        width: 400%;
        height: 100%;
        transition: transform .6s cubic-bezier(.4, 0, .2, 1);
    }

    .mini-slide {
        width: 25%;
        height: 100%;
        padding: 14px;
        box-sizing: border-box;
        background: #fff;
        font-size: 9px;
        color: var(--login-slate-900);
        overflow: hidden;
    }

    /* Mac 三点 chrome */
    .mini-chrome {
        display: flex;
        gap: 4px;
        margin-bottom: 8px;
    }
    .mini-chrome i {
        width: 7px; height: 7px;
        border-radius: 50%;
        display: inline-block;
    }
    .mini-chrome i:nth-child(1) { background: #fca5a5; }
    .mini-chrome i:nth-child(2) { background: #fcd34d; }
    .mini-chrome i:nth-child(3) { background: #86efac; }

    /* mini-detail：3 列网格 */
    .mini-detail {
        display: grid;
        grid-template-columns: 1fr 1.4fr 1fr;
        gap: 8px;
    }
    .mini-col {
        background: var(--login-slate-50);
        border-radius: 6px;
        padding: 7px;
    }
    .mini-col--mid {
        background: transparent;
        padding: 0;
    }
    .mini-col-title {
        font-size: 8px;
        color: var(--login-slate-500);
        font-weight: 700;
        margin-bottom: 5px;
    }
    .mini-bar {
        height: 3px;
        background: var(--login-slate-200);
        border-radius: 2px;
        margin-bottom: 4px;
    }
    .mini-bar--short { width: 70%; }

    .mini-bubble {
        background: var(--login-indigo-bg);
        border-radius: 6px;
        padding: 7px;
        margin-bottom: 6px;
    }
    .mini-bubble-name {
        font-size: 7px;
        color: var(--login-indigo);
        font-weight: 700;
        margin-bottom: 3px;
    }
    .mini-bubble-text {
        font-size: 7.5px;
        color: var(--login-slate-500);
        line-height: 1.5;
    }

    .mini-audio {
        background: #fff;
        border: 1px solid var(--login-slate-100);
        border-radius: 5px;
        padding: 6px;
        display: flex;
        align-items: center;
        gap: 4px;
    }
    .mini-audio-play {
        width: 12px;
        height: 12px;
        border-radius: 50%;
        background: var(--login-indigo);
        flex-shrink: 0;
    }
    .mini-audio-wave {
        flex: 1;
        display: flex;
        align-items: center;
        gap: 1px;
    }
    .mini-audio-wave i {
        display: inline-block;
        width: 1.5px;
        background: var(--login-indigo-wave);
        border-radius: 1px;
    }

    .mini-ai {
        padding: 5px;
        background: #fff;
        border-radius: 4px;
        margin-bottom: 4px;
        font-size: 7.5px;
        color: var(--login-slate-700);
    }

    /* mini-live */
    .mini-live-head {
        display: flex;
        align-items: center;
        gap: 6px;
        margin-bottom: 8px;
    }
    .mini-live-sub {
        font-size: 8px;
        color: var(--login-slate-500);
    }
    .mini-live-wave {
        background: #fff;
        border: 1px solid var(--login-slate-100);
        border-radius: 6px;
        padding: 8px;
        margin-bottom: 7px;
        display: flex;
        align-items: center;
        gap: 1.5px;
        height: 40px;
    }
    .mini-live-wave i {
        display: inline-block;
        width: 2px;
        background: var(--login-indigo);
        border-radius: 1px;
    }
    .mini-live-wave__mute { background: var(--login-slate-200) !important; }

    .mini-live-quote {
        background: var(--login-indigo-bg);
        border-radius: 6px;
        padding: 8px;
    }
    .mini-live-speaker {
        font-size: 7px;
        color: var(--login-indigo);
        font-weight: 700;
        margin-bottom: 4px;
    }
    .mini-live-text {
        font-size: 8px;
        color: var(--login-slate-500);
        line-height: 1.6;
    }
    .mini-cursor {
        color: var(--login-indigo);
        animation: login-blink 1s infinite;
    }

    /* REC marker（mini 场景） */
    .mini-rec {
        display: inline-flex;
        align-items: center;
        gap: 4px;
        font-size: 8px;
        color: var(--login-danger);
        font-weight: 700;
        letter-spacing: 0.5px;
    }
    .mini-rec i {
        width: 5px;
        height: 5px;
        border-radius: 50%;
        background: var(--login-danger);
        box-shadow: 0 0 0 2px rgba(239, 68, 68, .2);
        display: inline-block;
    }

    /* mini-list */
    .mini-list-filters {
        display: flex;
        gap: 5px;
        margin-bottom: 8px;
    }
    .mini-chip {
        background: #fff;
        border: 1px solid var(--login-slate-100);
        padding: 3px 8px;
        border-radius: 4px;
        font-size: 8px;
        color: var(--login-slate-500);
    }
    .mini-chip--primary {
        background: var(--login-indigo);
        color: #fff;
        font-weight: 700;
        border-color: var(--login-indigo);
    }
    .mini-row {
        background: #fff;
        border: 1px solid var(--login-slate-100);
        border-radius: 5px;
        padding: 7px;
        margin-bottom: 4px;
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .mini-row-main { flex: 1; }
    .mini-row-title {
        font-size: 8.5px;
        color: var(--login-slate-900);
        font-weight: 700;
    }
    .mini-row-time {
        font-size: 7.5px;
        color: var(--login-slate-500);
        margin-top: 1px;
    }
    .mini-score {
        font-size: 8px;
        color: var(--login-indigo);
        font-weight: 700;
    }
    .mini-dot {
        width: 5px;
        height: 5px;
        border-radius: 50%;
        background: var(--login-slate-200);
        display: inline-block;
    }

    /* mini-kanban */
    .mini-kanban {
        display: grid;
        grid-template-columns: 1fr 1fr 1fr;
        gap: 7px;
    }
    .mini-kanban-title {
        font-size: 8px;
        font-weight: 700;
        color: var(--login-slate-900);
        margin-bottom: 6px;
    }
    .mini-badge {
        padding: 0 4px;
        border-radius: 2px;
        font-size: 7px;
        margin-left: 2px;
    }
    .mini-badge--warn { background: var(--login-warn-bg); color: var(--login-warn-text); }
    .mini-badge--info { background: var(--login-info-bg); color: var(--login-info-text); }
    .mini-badge--ok   { background: var(--login-ok-bg);   color: var(--login-ok-text); }
    .mini-kanban-card {
        background: #fff;
        border: 1px solid var(--login-slate-100);
        border-radius: 4px;
        padding: 5px;
        margin-bottom: 4px;
    }
    .mini-kanban-text {
        font-size: 7.5px;
        color: var(--login-slate-900);
    }
    .mini-kanban-src {
        font-size: 6.5px;
        color: var(--login-slate-500);
        margin-top: 2px;
    }

    /* mobile indicator dots（与桌面 ind-item 同步） */
    .mobile-preview__indicator {
        display: flex;
        gap: 6px;
        align-items: center;
        justify-content: center;
        margin-bottom: 18px;
    }
    .mobile-ind {
        width: 6px;
        height: 3px;
        border-radius: 2px;
        background: var(--login-slate-300);
        transition: width .4s cubic-bezier(.4, 0, .2, 1),
                    background .4s cubic-bezier(.4, 0, .2, 1);
        display: inline-block;
    }
    .mobile-ind.active {
        width: 22px;
        background: var(--login-indigo);
    }

    /* 表单控件 radius 与按钮稍作柔化（跟设计 10px 对齐） */
    .field__control {
        border-radius: 10px;
    }
    .btn-login {
        border-radius: 10px;
        padding: 14px 0;
    }
    .btn-sso {
        border-radius: 10px;
        padding: 12px 0;
    }

    /* 版本号挪到底部居中 */
    .login-meta {
        margin-top: 18px;
        justify-content: center;
    }
    .login-copy {
        text-align: center;
        margin-top: 14px;
    }
}

/* ============= 更小屏（iPhone 390 等）微调 ============= */
@media (max-width: 480px) {
    .login-form-pane {
        padding: 48px 20px 20px;
    }
    .login-heading {
        font-size: 24px;
    }
    .mobile-preview__strip {
        height: 140px;
    }
}