* {
    box-sizing: border-box;
}

:root {
    --page-bg: #09111c;
    --text-main: #f6f8fb;
    --text-soft: rgba(236, 242, 248, 0.78);
    --text-faint: rgba(232, 238, 245, 0.58);
    --line: rgba(255, 255, 255, 0.14);
    --glass: rgba(12, 21, 33, 0.34);
    --glass-strong: rgba(18, 29, 44, 0.54);
    --accent: #d5b26b;
    --accent-strong: #f0cb88;
    --error: #ffb9b9;
    --success: #b7f0c4;
    --shadow: 0 32px 90px rgba(0, 0, 0, 0.34);
}

html,
body {
    min-height: 100%;
}

body {
    margin: 0;
    font-family: "Segoe UI", "Microsoft YaHei", "PingFang SC", sans-serif;
    color: var(--text-main);
    background: var(--page-bg);
}

.account-login-page {
    position: relative;
    min-height: 100vh;
    overflow: hidden;
    isolation: isolate;
}

.login-video-shell,
.login-video,
.video-overlay,
.video-grain {
    position: absolute;
    inset: 0;
}

.login-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    background:
        radial-gradient(circle at 20% 18%, rgba(43, 74, 107, 0.9), transparent 30%),
        linear-gradient(135deg, #132233 0%, #0a1420 100%);
}

.video-overlay {
    background:
        linear-gradient(120deg, rgba(4, 11, 19, 0.78) 10%, rgba(8, 17, 28, 0.46) 44%, rgba(6, 13, 22, 0.78) 100%),
        radial-gradient(circle at 50% 50%, rgba(213, 178, 107, 0.1), transparent 28%);
}

.video-grain {
    opacity: 0.16;
    mix-blend-mode: soft-light;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 22px 22px;
}

.login-stage {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
}

.glass-card {
    position: relative;
    width: min(500px, 100%);
    padding: 33px 26px 29px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 28px;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.025) 0%, rgba(255, 255, 255, 0.008) 100%);
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(10px) saturate(1);
    -webkit-backdrop-filter: blur(10px) saturate(1);
}

.glass-card::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background:
        linear-gradient(135deg, rgba(255, 255, 255, 0.045) 0%, rgba(255, 255, 255, 0) 34%),
        linear-gradient(180deg, rgba(255, 255, 255, 0.012) 0%, rgba(255, 255, 255, 0) 38%);
    pointer-events: none;
}

.card-copy {
    position: relative;
    margin-top: 0;
}

.card-copy h1 {
    margin: 0;
    font-size: clamp(24px, 3vw, 32px);
    line-height: 1.12;
    font-weight: 700;
    letter-spacing: 0.02em;
    color: #ffffff;
    text-shadow: 0 2px 14px rgba(255, 255, 255, 0.16);
    transform: translateY(-10px);
}

.login-form {
    position: relative;
    display: grid;
    gap: 14px;
    margin-top: 22px;
}

.field {
    display: grid;
    gap: 8px;
}

.field span {
    color: var(--text-main);
    font-size: 13px;
    font-weight: 600;
}

.field input {
    width: 100%;
    min-height: 48px;
    padding: 0 14px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    background: rgba(255, 255, 255, 0.02);
    color: var(--text-main);
    font: inherit;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
    transition: border-color 180ms ease, background-color 180ms ease, box-shadow 180ms ease;
}

.field input::placeholder {
    color: rgba(245, 248, 251, 0.34);
}

.field input:focus {
    outline: none;
    border-color: rgba(240, 203, 136, 0.9);
    background: rgba(255, 255, 255, 0.035);
    box-shadow:
        0 0 0 4px rgba(213, 178, 107, 0.08),
        inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.form-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.remember {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--text-soft);
    font-size: 13px;
}

.remember input {
    accent-color: var(--accent);
}

.field-hint {
    min-height: 18px;
    color: var(--text-soft);
    font-size: 13px;
}

.field-hint.is-error {
    color: var(--error);
}

.field-hint.is-success {
    color: var(--success);
}

.submit-button {
    min-height: 50px;
    margin-top: 4px;
    border: 0;
    border-radius: 15px;
    background: linear-gradient(135deg, var(--accent-strong) 0%, var(--accent) 100%);
    color: #101923;
    font: inherit;
    font-size: 15px;
    font-weight: 800;
    letter-spacing: 0.04em;
    cursor: pointer;
    box-shadow: 0 18px 34px rgba(0, 0, 0, 0.18);
    transition: transform 180ms ease, box-shadow 180ms ease, filter 180ms ease;
}

.submit-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 24px 40px rgba(0, 0, 0, 0.24);
    filter: saturate(1.05);
}

.submit-button:active {
    transform: translateY(0);
}

.submit-button:disabled {
    cursor: wait;
    opacity: 0.86;
}

@media (max-width: 640px) {
    .login-stage {
        padding: 18px;
    }

    .glass-card {
        width: min(500px, 100%);
        padding: 27px 18px;
        border-radius: 24px;
    }

    .form-row {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (prefers-reduced-motion: reduce) {
    .field input,
    .submit-button {
        transition: none !important;
    }
}