/* ==========================================================================
   Huatai Theme · Forms
   询盘表单 / 侧栏表单 / 搜索表单 / 复选框 / 校验反馈
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. 表单容器
   -------------------------------------------------------------------------- */
.contact-form-wrapper,
.inquiry-form-wrapper,
.contact-form-box-2,
.contact-form-box {
    padding: clamp(1.25rem, 1rem + 1.5vw, 2.5rem);
    background: var(--h-bg-surface);
    border: 1px solid var(--h-border-subtle);
    border-radius: var(--h-radius-lg);
    box-shadow: var(--h-shadow-sm);
}

/* htForm 单独出现（详情 / 列表页底部）时直接具备卡片外观：
   背景 + 边框 + 内边距；当它已处于卡片容器内（联系页 .contact-form-wrapper、
   旧版 .contact-form-box-*）则消除内层表单自带卡片，避免嵌套双卡片。 */
.contact-form {
    padding: clamp(1.25rem, 1rem + 1.5vw, 2.5rem);
    background: var(--h-bg-surface);
    border: 1px solid var(--h-border-subtle);
    border-radius: var(--h-radius-lg);
    box-shadow: var(--h-shadow-sm);
}

.contact-form-wrapper > .contact-form,
.contact-form-box-2 .contact-form,
.contact-form-box .contact-form {
    padding: 0;
    border: 0;
    background: transparent;
    box-shadow: none;
    border-radius: 0;
}

.inquiry-form-wrapper h3,
.contact-form-wrapper .section-subtitle {
    margin-block-end: var(--h-space-2xs);
    font-size: var(--h-fs-600);
    text-align: start;
}

.form-desc {
    max-width: 60ch;
    margin-block-end: var(--h-space-md);
    font-size: var(--h-fs-200);
    line-height: var(--h-lh-relaxed);
    color: var(--h-text-muted);
}

/* --------------------------------------------------------------------------
   2. 表单组
   -------------------------------------------------------------------------- */
.form-group {
    display: grid;
    gap: var(--h-space-3xs);
    margin-block-end: var(--h-space-sm);
    min-width: 0;
}

.form-group label,
.contact-form label,
.sidebar-form label {
    font-size: var(--h-fs-200);
    font-weight: var(--h-fw-semibold);
    line-height: 1.4;
    color: var(--h-text-strong);
}

.required {
    color: var(--h-color-brand);
    font-weight: var(--h-fw-bold);
}

/* --------------------------------------------------------------------------
   3. 输入控件
   -------------------------------------------------------------------------- */
.form-control,
.contact-form input[type="text"],
.contact-form input[type="email"],
.contact-form input[type="tel"],
.contact-form input[type="url"],
.contact-form select,
.contact-form textarea,
.sidebar-form input[type="text"],
.sidebar-form input[type="email"],
.sidebar-form input[type="tel"],
.sidebar-form select,
.sidebar-form textarea {
    width: 100%;
    min-width: 0;
    padding: 0.7em 0.9em;
    border: 1px solid var(--h-border-default);
    border-radius: var(--h-radius-sm);
    background: var(--h-bg-surface);
    color: var(--h-text-strong);
    font-size: var(--h-fs-300);
    line-height: 1.5;
    transition: border-color var(--h-dur-base) var(--h-ease-standard),
                box-shadow var(--h-dur-base) var(--h-ease-standard);
    /* iOS 上字号小于 16px 会触发自动缩放，这里字号已 >=15px 且加入兜底 */
    -webkit-appearance: none;
    appearance: none;
}

textarea.form-control,
.contact-form textarea,
.sidebar-form textarea {
    min-height: 9rem;
    resize: vertical;
}

.form-control::placeholder,
.contact-form input::placeholder,
.contact-form textarea::placeholder {
    color: var(--h-text-muted);
    opacity: 0.75;
}

.form-control:hover,
.contact-form input:hover,
.contact-form textarea:hover,
.contact-form select:hover {
    border-color: var(--h-border-strong);
}

.form-control:focus,
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus,
.sidebar-form input:focus,
.sidebar-form select:focus,
.sidebar-form textarea:focus {
    outline: none;
    border-color: var(--h-color-brand);
    box-shadow: var(--h-shadow-focus);
}

/* select 的下拉箭头（因为 appearance:none 被去掉了） */
.contact-form select.form-control,
.sidebar-form select.form-control,
select.form-control {
    padding-inline-end: 2.4em;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2385796F' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.8em center;
    background-size: 16px 16px;
}

select.form-control option { padding: 0.3em 0.5em; }

/* 原生校验反馈 */
.form-control:user-invalid,
.contact-form input:user-invalid,
.contact-form textarea:user-invalid {
    border-color: var(--h-state-danger);
}

.form-control:user-valid,
.contact-form input:user-valid {
    border-color: var(--h-state-success);
}

/* --------------------------------------------------------------------------
   4. 复选框
   -------------------------------------------------------------------------- */
.form-check {
    display: flex;
    align-items: flex-start;
    gap: var(--h-space-2xs);
    margin-block-end: var(--h-space-md);
}

.form-check-input {
    flex: none;
    width: 1.1em;
    height: 1.1em;
    margin-block-start: 0.22em;
    accent-color: var(--h-color-brand);
}

.form-check-label {
    font-size: var(--h-fs-200);
    line-height: 1.5;
    color: var(--h-text-body);
}

.form-check-label a { text-decoration: underline; }
.form-check-label a:hover { color: var(--h-color-brand-strong); }

/* --------------------------------------------------------------------------
   5. 提交区
   -------------------------------------------------------------------------- */
.form-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--h-space-sm);
    margin-block-start: var(--h-space-md);
}

.form-actions .btn-primary {
    padding-inline: var(--h-space-lg);
}

.form-actions .btn-primary i {
    transition: translate var(--h-dur-base) var(--h-ease-out);
}

.form-actions .btn-primary:hover i { translate: 3px -3px; }

.form-note,
.form-security-note {
    font-size: var(--h-fs-100);
    color: var(--h-text-muted);
}

.form-security-note {
    display: flex;
    align-items: flex-start;
    gap: var(--h-space-2xs);
    margin-block: var(--h-space-md) 0;
    border-inline-start-color: var(--h-color-gold);
}

.form-security-note i {
    flex: none;
    margin-block-start: 0.2em;
    color: var(--h-color-gold-strong);
}

/* --------------------------------------------------------------------------
   6. 侧栏表单（紧凑版）
   -------------------------------------------------------------------------- */
.sidebar-form {
    padding: var(--h-space-md);
    border-radius: var(--h-radius-lg);
    background: var(--h-bg-surface);
    border: 1px solid var(--h-border-subtle);
}

.sidebar-form .form-group { margin-block-end: var(--h-space-2xs); }
.sidebar-form label { font-size: var(--h-fs-100); }
.sidebar-form .form-control { padding: 0.55em 0.75em; font-size: var(--h-fs-200); }
.sidebar-form textarea.form-control { min-height: 6rem; }

.sidebar-form .btn-block {
    margin-block-start: var(--h-space-2xs);
    width: 100%;
}

.sidebar-form .btn-block:hover { box-shadow: var(--h-shadow-md); }

/* --------------------------------------------------------------------------
   7. 表单内嵌的行 => 列（沿用全局 .row 栅格，这里只做断点收窄）
   -------------------------------------------------------------------------- */
.contact-form .row,
.contact-form-wrapper .row {
    column-gap: var(--h-gutter);
    row-gap: 0;
}

.contact-form .row > * { margin-block-end: var(--h-space-sm); }

/* --------------------------------------------------------------------------
   8. 旧注释块内的 <p><input> 结构兼容性
   -------------------------------------------------------------------------- */
.contact-form p { margin-block-end: var(--h-space-sm); }
.contact-form p:last-child { margin-block-end: 0; }
.contact-form .btn-wrapper > p { margin: 0; }