/* 实训计划 · 主题化登录页（学生 / 企业独立入口） */

.qc-login-body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    color: var(--qc-text);
    position: relative;
    overflow-x: hidden;
}

/* —— 实景背景 + 渐变遮罩 —— */
.qc-login-scene {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}

.qc-login-scene__photo {
    position: absolute;
    inset: -5%;
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center 35%;
    will-change: transform;
    animation: qc-login-kenburns 26s ease-in-out infinite alternate;
}

.qc-login-scene__mask {
    position: absolute;
    inset: 0;
}

@keyframes qc-login-kenburns {
    from { transform: scale(1); }
    to { transform: scale(1.05); }
}

@media (prefers-reduced-motion: reduce) {
    .qc-login-scene__photo {
        animation: none;
        inset: 0;
    }
}

.qc-login-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 32px 20px 48px;
    position: relative;
    z-index: 1;
}

/* —— 学生：成长路线实景 + 青绿遮罩 —— */
.qc-login-body--student {
    background: #9cc8d8;
}

.qc-login-body--student .qc-login-scene__photo {
    background-image: url('../img/hero-bg-roadmap.jpg');
}

.qc-login-body--student .qc-login-scene__mask {
    background:
        radial-gradient(ellipse 75% 55% at 72% 18%, rgba(0, 184, 148, 0.28) 0%, transparent 58%),
        radial-gradient(ellipse 55% 45% at 12% 88%, rgba(255, 107, 44, 0.2) 0%, transparent 52%),
        linear-gradient(165deg, rgba(82, 158, 138, 0.76) 0%, rgba(98, 168, 198, 0.68) 44%, rgba(175, 210, 222, 0.52) 100%),
        linear-gradient(180deg, rgba(255, 255, 255, 0.06) 0%, rgba(255, 255, 255, 0.18) 100%);
}

.qc-login-body--student .qc-login-scene::before,
.qc-login-body--student .qc-login-scene::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
    filter: blur(80px);
    z-index: 2;
}

.qc-login-body--student .qc-login-scene::before {
    width: 420px;
    height: 420px;
    top: -120px;
    right: -100px;
    background: rgba(0, 184, 148, 0.32);
}

.qc-login-body--student .qc-login-scene::after {
    width: 340px;
    height: 340px;
    bottom: -90px;
    left: -70px;
    background: rgba(255, 107, 44, 0.18);
}

.qc-login-body--student .qc-login-brand__panel {
    border-color: rgba(0, 184, 148, 0.18);
    box-shadow: 0 12px 40px rgba(26, 43, 74, 0.1), 0 0 0 1px rgba(0, 184, 148, 0.06);
}

.qc-login-body--student .qc-login-shell-badge--student {
    background: rgba(0, 184, 148, 0.12);
    color: #008f72;
    border: 1px solid rgba(0, 184, 148, 0.32);
}

.qc-login-body--student .qc-login-card {
    border: 1px solid rgba(255, 255, 255, 0.65);
    box-shadow: 0 20px 56px rgba(26, 43, 74, 0.12), 0 8px 24px rgba(0, 184, 148, 0.1);
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(14px);
}

.qc-login-body--student .qc-login-field input:focus {
    border-color: var(--qc-teal);
    box-shadow: 0 0 0 3px rgba(0, 184, 148, 0.16);
}

.qc-login-body--student .qc-login-back {
    color: var(--qc-teal-dark);
}

.qc-login-body--student .qc-login-back:hover {
    color: var(--qc-teal);
}

.qc-login-body--student .qc-login-footer {
    color: var(--qc-text-muted);
}

.qc-login-body--student .qc-login-alt a {
    color: var(--qc-teal-dark);
}

/* —— 企业：规模实景 + 暖橙遮罩 —— */
.qc-login-body--enterprise {
    background: #f3f6fb;
}

.qc-login-body--enterprise .qc-login-scene__photo {
    background-image: url('../img/hero-bg-scale.jpg');
    background-position: center 40%;
}

.qc-login-body--enterprise .qc-login-scene__mask {
    background:
        radial-gradient(ellipse 65% 50% at 50% 12%, rgba(255, 107, 44, 0.22) 0%, transparent 55%),
        linear-gradient(165deg, rgba(255, 248, 244, 0.86) 0%, rgba(248, 250, 252, 0.8) 52%, rgba(228, 236, 248, 0.72) 100%);
}

.qc-login-body--enterprise .qc-login-scene::before {
    content: '';
    position: absolute;
    width: 380px;
    height: 380px;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 50%;
    background: rgba(255, 107, 44, 0.14);
    filter: blur(80px);
    pointer-events: none;
    z-index: 2;
}

.qc-login-body--enterprise .qc-login-brand__panel {
    border-color: rgba(255, 107, 44, 0.16);
    box-shadow: 0 12px 40px rgba(26, 43, 74, 0.1), 0 0 0 1px rgba(255, 107, 44, 0.06);
}

.qc-login-body--enterprise .qc-login-shell-badge--enterprise {
    background: rgba(255, 107, 44, 0.1);
    color: var(--qc-orange-dark);
    border: 1px solid rgba(255, 107, 44, 0.28);
}

.qc-login-body--enterprise .qc-login-card {
    border: 1px solid rgba(255, 255, 255, 0.7);
    box-shadow: 0 20px 56px rgba(26, 43, 74, 0.1), 0 8px 24px rgba(255, 107, 44, 0.08);
    background: rgba(255, 255, 255, 0.93);
    backdrop-filter: blur(14px);
}

.qc-login-body--enterprise .qc-login-field input:focus {
    border-color: var(--qc-orange);
    box-shadow: 0 0 0 3px rgba(255, 107, 44, 0.14);
}

.qc-login-body--enterprise .qc-login-back {
    color: var(--qc-orange-dark);
}

.qc-login-body--enterprise .qc-login-back:hover {
    color: var(--qc-orange);
}

.qc-login-body--enterprise .qc-login-footer {
    color: var(--qc-text-muted);
}

/* —— 运营：深青灰氛围 + 橙点缀；科创燃梦仍用统一 .qc-login-brand__name —— */
.qc-login-body--ops {
    background: #c5cdd8;
}

.qc-login-body--ops .qc-login-scene__photo {
    background-image: url('../img/hero-bg-scale.jpg');
    background-position: center 40%;
}

.qc-login-body--ops .qc-login-scene__mask {
    background:
        radial-gradient(ellipse 65% 50% at 50% 12%, rgba(255, 107, 44, 0.18) 0%, transparent 55%),
        radial-gradient(ellipse 70% 55% at 88% 82%, rgba(26, 43, 74, 0.35) 0%, transparent 58%),
        linear-gradient(165deg, rgba(26, 43, 74, 0.62) 0%, rgba(45, 67, 115, 0.48) 48%, rgba(210, 218, 228, 0.55) 100%);
}

.qc-login-body--ops .qc-login-scene::before {
    content: '';
    position: absolute;
    width: 380px;
    height: 380px;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 50%;
    background: rgba(26, 43, 74, 0.2);
    filter: blur(80px);
    pointer-events: none;
    z-index: 2;
}

.qc-login-body--ops .qc-login-brand__panel {
    border-color: rgba(26, 43, 74, 0.14);
    box-shadow: 0 12px 40px rgba(26, 43, 74, 0.12), 0 0 0 1px rgba(255, 107, 44, 0.08);
}

.qc-login-body--ops .qc-login-shell-badge--ops {
    background: rgba(255, 107, 44, 0.12);
    color: var(--qc-orange-dark);
    border: 1px solid rgba(255, 107, 44, 0.32);
}

.qc-login-body--ops .qc-login-card {
    border: 1px solid rgba(255, 255, 255, 0.7);
    box-shadow: 0 20px 56px rgba(26, 43, 74, 0.14), 0 8px 24px rgba(26, 43, 74, 0.08);
    background: rgba(255, 255, 255, 0.93);
    backdrop-filter: blur(14px);
}

.qc-login-body--ops .qc-login-card__eyebrow {
    color: var(--qc-navy);
}

.qc-login-body--ops .qc-login-field input:focus {
    border-color: var(--qc-orange);
    box-shadow: 0 0 0 3px rgba(255, 107, 44, 0.14);
}

.qc-login-body--ops .qc-login-back {
    color: var(--qc-navy);
}

.qc-login-body--ops .qc-login-back:hover {
    color: var(--qc-orange-dark);
}

.qc-login-body--ops .qc-login-alt a {
    color: var(--qc-navy);
}

.qc-login-body--ops .qc-login-alt a:hover {
    color: var(--qc-orange-dark);
}

/* —— 品牌区 —— */
.qc-login-brand {
    width: 100%;
    max-width: 420px;
    margin-bottom: 16px;
}

.qc-login-brand__panel {
    padding: 18px 20px;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.94);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.75);
    box-shadow: 0 12px 40px rgba(26, 43, 74, 0.1);
}

.qc-login-brand__row {
    display: flex;
    align-items: center;
    gap: 14px;
}

.qc-login-brand__logo {
    width: 52px;
    height: 52px;
    flex-shrink: 0;
    object-fit: contain;
}

.qc-login-brand__copy {
    flex: 1;
    min-width: 0;
    text-align: left;
}

.qc-login-brand__program {
    margin: 0 0 4px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.06em;
    color: var(--qc-text-muted);
    line-height: 1.45;
}

.qc-login-brand__name {
    margin: 0;
    font-family: 'Ma Shan Zheng', 'PingFang SC', cursive;
    font-size: clamp(30px, 7vw, 36px);
    font-weight: 400;
    line-height: 1.1;
    color: var(--qc-orange);
    letter-spacing: 0.04em;
}

.qc-login-brand__meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px 12px;
    margin-top: 14px;
    padding-top: 14px;
    border-top: 1px solid rgba(26, 43, 74, 0.08);
}

.qc-login-brand__tagline {
    margin: 0;
    flex: 1;
    min-width: 0;
    font-size: 13px;
    line-height: 1.5;
    color: var(--qc-text-muted);
    text-align: left;
}

.qc-login-shell-badge {
    display: inline-block;
    margin-top: 0;
    padding: 5px 12px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.04em;
    flex-shrink: 0;
}

.qc-login-card {
    width: 100%;
    max-width: 420px;
    background: rgba(255, 255, 255, 0.94);
    backdrop-filter: blur(8px);
    border-radius: var(--qc-radius-lg);
    padding: 28px 24px 24px;
}

.qc-login-card__eyebrow {
    margin: 0 0 6px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.06em;
    color: var(--qc-text-muted);
}

.qc-login-body--student .qc-login-card__eyebrow {
    color: #008f72;
}

.qc-login-body--enterprise .qc-login-card__eyebrow {
    color: var(--qc-orange-dark);
}

.qc-login-card h2 {
    font-size: 20px;
    font-weight: 700;
    color: var(--qc-navy);
    margin-bottom: 6px;
}

.qc-login-card .qc-login-card-lead {
    font-size: 13px;
    color: var(--qc-text-muted);
    margin-bottom: 20px;
    line-height: 1.5;
}

.qc-login-error {
    background: #fef2f2;
    color: #991b1b;
    border: 1px solid #fecaca;
    border-radius: 8px;
    padding: 10px 12px;
    font-size: 13px;
    margin-bottom: 16px;
}

.qc-login-field {
    margin-bottom: 16px;
}

.qc-login-field label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--qc-text);
    margin-bottom: 6px;
}

.qc-login-field input {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--qc-border);
    border-radius: 10px;
    font-size: 15px;
    background: #fff;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.qc-login-submit {
    width: 100%;
    padding: 14px;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    margin-top: 4px;
    transition: transform 0.15s, box-shadow 0.15s;
}

.qc-login-submit--student {
    background: linear-gradient(135deg, var(--qc-teal), var(--qc-teal-dark));
    color: #fff;
    box-shadow: 0 8px 20px rgba(0, 184, 148, 0.28);
}

.qc-login-submit--enterprise {
    background: linear-gradient(135deg, var(--qc-orange), var(--qc-orange-dark));
    color: #fff;
    box-shadow: 0 8px 20px rgba(255, 107, 44, 0.24);
}

.qc-login-submit:hover {
    transform: translateY(-1px);
}

.qc-login-submit--student:hover {
    box-shadow: 0 12px 28px rgba(0, 184, 148, 0.32);
}

.qc-login-submit--enterprise:hover {
    box-shadow: 0 12px 28px rgba(255, 107, 44, 0.3);
}

.qc-login-submit--ops {
    background: linear-gradient(135deg, var(--qc-navy), var(--qc-navy-light));
    color: #fff;
    box-shadow: 0 8px 20px rgba(26, 43, 74, 0.28);
}

.qc-login-submit--ops:hover {
    box-shadow: 0 12px 28px rgba(26, 43, 74, 0.36);
}

.qc-login-hint {
    font-size: 12px;
    color: var(--qc-text-muted);
    margin-top: 16px;
    line-height: 1.5;
}

.qc-login-hint code {
    background: var(--qc-bg);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 11px;
}

.qc-login-hint.is-online { color: #059669; }
.qc-login-hint.is-offline { color: #b45309; }

.qc-login-back {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 24px;
    font-size: 14px;
    font-weight: 500;
}

.qc-login-footer {
    text-align: center;
    padding: 20px;
    font-size: 12px;
    position: relative;
    z-index: 1;
}

.qc-login-alt {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--qc-border);
    font-size: 13px;
    color: var(--qc-text-muted);
    text-align: center;
}

.qc-login-alt a {
    color: var(--qc-orange-dark);
    font-weight: 600;
}