/* ========================================
   注册页 - register.php 专用样式（PC端）
   设计系统 v4.0
   作用域：.auth-card 前缀，仅 PC 端生效
   ======================================== */

/* ===== 页面氛围背景 ===== */
body {
    background-color: var(--color-bg-body);
}

/* 注册页 - 标签左置布局 */
.auth-card {
    max-width: 480px;
    margin: 40px auto;
    padding: 40px 40px 36px;
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    box-sizing: border-box;
}

/* 情感化Logo */
.auth-logo {
    text-align: center;
    margin-bottom: 16px;
}
.auth-logo i {
    font-size: 42px;
    color: var(--color-primary);
    opacity: 0.8;
}

/* 情感化标题 */
.auth-title {
    text-align: center;
    margin-bottom: 8px;
    font-size: 22px;
    font-weight: 600;
    color: var(--color-text-primary);
    letter-spacing: 2px;
}
.auth-subtitle {
    text-align: center;
    margin-bottom: 32px;
    font-size: 14px;
    color: var(--color-text-muted);
}

/* 分组标题 */
.section-title {
    font-size: 12px; font-weight: 600; color: #aaa;
    letter-spacing: 1px; margin-bottom: 16px; padding-bottom: 8px;
    border-bottom: 1px solid #f0f0ee;
    text-transform: uppercase;
}

/* 表单行——标签左置 */
.form-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 16px;
    margin-bottom: 18px;
}
/* 提示信息独占一行，置于输入框下方 */
.form-row .form-control + div[id$="Hint"] {
    width: 100%;
    margin-left: 0;
    font-size: 11px !important;
}
.form-row .form-control + div[id$="Hint"] i {
    font-size: 11px;
}

/* 带图标的表单标签 */
.form-label-icon {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 0 0 90px;
    font-size: 13px;
    font-weight: 600;
    color: #444;
    text-align: right;
    line-height: 1.3;
}
.form-label-icon i {
    color: var(--color-primary);
    font-size: 14px;
    width: 16px;
    text-align: center;
}

.form-row .form-control {
    flex: 1;
    height: 48px;
    padding: 0 14px;
    border: 1px solid var(--color-border);
    font-size: 14px;
    border-radius: 8px;
    box-sizing: border-box;
    color: var(--color-text-primary);
    background: var(--color-bg-body);
    transition: all 0.3s ease;
    /* 聚焦动效——底部高光从中间展开 */
    background-image: linear-gradient(to right, var(--color-primary), var(--color-primary));
    background-size: 0% 2px;
    background-repeat: no-repeat;
    background-position: center bottom;
    background-origin: padding-box;
}
.form-row .form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    background-size: 100% 2px;
}
.form-row .form-control::placeholder {
    color: var(--color-text-placeholder);
    font-size: 13px;
}

/* 输入框行（含验证码发送按钮） */
.input-row {
    display: flex;
    gap: 10px;
    flex: 1;
}
.input-row .form-control {
    flex: 1;
}
.input-row .btn-send-code {
    flex: 0 0 110px;
    padding: 11px 0;
    background: transparent;
    border: 1.5px solid var(--color-primary);
    color: var(--color-primary);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    transition: all 0.3s ease;
    white-space: nowrap;
    text-align: center;
}
.input-row .btn-send-code:hover { background: var(--color-primary-light); }
.input-row .btn-send-code:disabled { opacity: 0.5; cursor: not-allowed; }

/* 图形验证码——Flex 完美对齐 */
.captcha-row {
    display: flex;
    gap: 12px;
    flex: 1;
    align-items: center;
}
.captcha-row .form-control {
    flex: 1;
    min-width: 120px;
}
.captcha-row img {
    height: 42px;
    width: auto;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    cursor: pointer;
    flex-shrink: 0;
}

/* 提交按钮 */
.btn-auth {
    position: relative;
    overflow: hidden;
    width: 100%; padding: 14px;
    background: var(--color-primary);
    color: #fff; border: none;
    border-radius: 8px;
    cursor: pointer; font-size: 15px; font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 102, 204, 0.25);
    letter-spacing: 1px;
}
.btn-auth:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 102, 204, 0.35);
    background: var(--color-primary-dark);
}
.btn-auth:active {
    transform: scale(0.98);
}
/* 按钮水波纹 */
.btn-auth .ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255,255,255,0.2);
    pointer-events: none;
    transform: scale(0);
    animation: btnRipple 0.5s ease-out forwards;
}
@keyframes btnRipple {
    to { transform: scale(4); opacity: 0; }
}

/* 超链接下划线动画 */
.auth-links { text-align: center; margin-top: 22px; font-size: 13px; }
.auth-links a {
    color: var(--color-primary);
    text-decoration: none;
    position: relative;
    padding-bottom: 1px;
}
.auth-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--color-primary);
    transition: width 0.3s ease;
}
.auth-links a:hover::after {
    width: 100%;
}

.auth-error {
    color: var(--color-danger); margin-bottom: 18px; padding: 12px 16px;
    background: #fef5f5; border-radius: var(--radius-md);
    border-left: 3px solid var(--color-danger); font-size: 13px; line-height: 1.6;
}
.auth-error p { margin-bottom: 0; }
.auth-error p + p { margin-top: 4px; }
.success-message {
    color: #2d7a4f; background: #eaf7ef; border-left: 3px solid #a8e6cf;
    padding: 16px 20px; border-radius: var(--radius-md); margin-bottom: 20px;
}
/* 前端动态成功提示（验证码发送等） */
.auth-success {
    color: #2d7a4f; margin-bottom: 18px; padding: 12px 16px;
    background: #eaf7ef; border-radius: var(--radius-md);
    border-left: 3px solid #a8e6cf; font-size: 13px; line-height: 1.6;
}
.auth-success p { margin-bottom: 0; }

/* 底部情感化文案 */
.auth-footer {
    text-align: center;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--color-border-light);
}
.auth-footer p {
    font-size: 13px;
    color: var(--color-text-muted);
    font-style: italic;
}