/* 维力商城 - 登录页 · 电商后台风格 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e9f0 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

/* 装饰光晕 */
.bg-gradient {
    position: fixed;
    inset: 0;
    background:
        radial-gradient(circle at 15% 20%, rgba(255, 107, 0, 0.06) 0%, transparent 50%),
        radial-gradient(circle at 85% 80%, rgba(255, 160, 0, 0.05) 0%, transparent 50%);
    z-index: 0;
}

/* ========== 登录卡片 ========== */
.login-card {
    position: relative;
    z-index: 1;
    width: 400px;
    max-width: 92vw;
    background: #ffffff;
    border-radius: 16px;
    padding: 48px 40px 32px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06), 0 1px 4px rgba(0, 0, 0, 0.04);
}

/* 顶部 Logo 区 */
.card-header {
    text-align: center;
    margin-bottom: 36px;
}

.logo-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 16px;
    background: linear-gradient(135deg, #ff6b00, #ff9500);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    color: #fff;
    box-shadow: 0 6px 16px rgba(255, 107, 0, 0.25);
}

.logo-title {
    font-size: 24px;
    font-weight: 700;
    color: #1a1a2e;
    letter-spacing: 1px;
    margin-bottom: 4px;
}

.logo-sub {
    font-size: 13px;
    color: #999;
    letter-spacing: 3px;
    margin: 0;
}

/* ========== 表单 ========== */
.form-group {
    margin-bottom: 18px;
    position: relative;
}

.form-group .input-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: #b0b0b0;
    font-size: 15px;
    z-index: 2;
    pointer-events: none;
    transition: color 0.3s;
}

.login-card input[type="text"],
.login-card input[type="password"] {
    width: 100%;
    height: 46px;
    padding: 0 14px 0 42px;
    background: #f5f7fa;
    border: 1px solid #e8ecf1;
    border-radius: 10px;
    color: #333;
    font-size: 14px;
    outline: none;
    transition: all 0.3s ease;
}

.login-card input::placeholder {
    color: #b0b0b0;
}

.login-card input:focus {
    background: #fff;
    border-color: #ff6b00;
    box-shadow: 0 0 0 3px rgba(255, 107, 0, 0.10);
}

.login-card input:focus ~ .input-icon,
.form-group:focus-within .input-icon {
    color: #ff6b00;
}

/* 验证码行 */
.code-row {
    display: flex;
    gap: 12px;
    align-items: center;
}

.code-row input {
    flex: 1;
}

.code-row .imgcode {
    height: 46px;
    border-radius: 10px;
    cursor: pointer;
    width: 120px;
    object-fit: cover;
    border: 1px solid #e8ecf1;
}

/* 记住我 */
.checkbox-row {
    display: flex;
    align-items: center;
    margin-bottom: 24px;
}

.checkbox-row label {
    color: #888;
    font-size: 13px;
    cursor: pointer;
    display: flex;
    align-items: center;
    user-select: none;
}

.checkbox-row input[type="checkbox"] {
    appearance: none;
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    border: 1px solid #d0d0d0;
    border-radius: 4px;
    margin-right: 8px;
    cursor: pointer;
    background: #fff;
    position: relative;
    transition: all 0.2s;
    flex-shrink: 0;
}

.checkbox-row input[type="checkbox"]:checked {
    background: linear-gradient(135deg, #ff6b00, #ff9500);
    border-color: transparent;
}

.checkbox-row input[type="checkbox"]:checked::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #fff;
    font-size: 10px;
    font-weight: bold;
}

/* 登录按钮 */
.login-btn {
    width: 100%;
    height: 46px;
    border: none;
    border-radius: 10px;
    background: linear-gradient(135deg, #ff6b00 0%, #ff9500 100%);
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    letter-spacing: 2px;
    position: relative;
    overflow: hidden;
}

.login-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(255, 107, 0, 0.30);
}

.login-btn:active {
    transform: translateY(0);
}

.login-btn.loading {
    pointer-events: none;
    opacity: 0.75;
}

.login-btn.loading::after {
    content: '';
    position: absolute;
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
}

@keyframes spin {
    to { transform: translateY(-50%) rotate(360deg); }
}

/* 注册链接 */
.register-link {
    text-align: center;
    margin-top: 18px;
}

.register-link a {
    color: #b0b0b0;
    font-size: 13px;
    text-decoration: none;
    transition: color 0.2s;
}

.register-link a:hover {
    color: #ff6b00;
}

/* 底部版权 */
.card-footer {
    text-align: center;
    margin-top: 28px;
    padding-top: 20px;
    border-top: 1px solid #f0f0f0;
}

.card-footer p {
    color: #c0c0c0;
    font-size: 11px;
    letter-spacing: 0.5px;
    margin: 0;
}

/* 验证错误提示 */
label.error {
    position: inherit !important;
    color: #e53e3e !important;
    font-size: 12px !important;
    margin-top: 4px !important;
    padding-left: 4px !important;
}

/* ========== 响应式 ========== */
@media (max-width: 480px) {
    .login-card {
        padding: 36px 24px 24px;
        border-radius: 14px;
    }
    .logo-icon {
        width: 48px;
        height: 48px;
        font-size: 22px;
        border-radius: 12px;
    }
    .logo-title {
        font-size: 20px;
    }
}