/* ============================================================
   Contact Form — Section 02
   Figma 828:1780
   居中标题 Anton 48px + 864px 宽表单
   输入框：白底 border-radius 20px border #9cbae0
   PDF 上传区：虚线边框 #edf5ff 背景
   提交按钮：全宽 #054fbd 蓝底
   设计基准 1280px
   ============================================================ */

.sparta-contact-form {
	background: #ffffff;
	padding: 72px 0 96px;
}

/* ── 内容容器 ── */
.sparta-contact-form__inner {
	max-width: 1280px;
	margin: 0 auto;
	padding: 0 39px;
	display: flex;
	flex-direction: column;
	align-items: center;
}

/* ── 标题：Anton 48px #012f73，居中 ── */
.sparta-contact-form__title {
	font-family: 'Anton', sans-serif;
	font-size: 48px;
	font-weight: 400;
	line-height: 60px;
	color: #012f73;
	text-align: center;
	margin: 0 0 56px 0;
	width: 450px;
}

/* ── 表单 ── */
.sparta-contact-form__form {
	width: 864px;
}

/* 双列行 */
.sparta-contact-form__row {
	display: flex;
	gap: 16px;
	margin-bottom: 24px;
}

.sparta-contact-form__row .sparta-contact-form__field {
	flex: 1;
}

/* 单个字段组 */
.sparta-contact-form__field {
	margin-bottom: 24px;
}

.sparta-contact-form__field:last-child {
	margin-bottom: 0;
}

/* Label：Montserrat SemiBold 18px #012f73 */
.sparta-contact-form__label {
	display: block;
	font-family: 'Montserrat', sans-serif;
	font-size: 18px;
	font-weight: 600;
	line-height: normal;
	color: #012f73;
	margin-bottom: 10px;
}

/* 文本输入框 */
.sparta-contact-form__input,
.sparta-contact-form__textarea {
	width: 100%;
	height: 60px;
	background: #ffffff;
	border: 2px solid #9cbae0;
	border-radius: 20px;
	padding: 16px 24px;
	font-family: 'Montserrat', sans-serif;
	font-size: 16px;
	font-weight: 400;
	color: #333333;
	letter-spacing: -0.3125px;
	box-sizing: border-box;
	outline: none;
	transition: border-color 0.2s;
	-webkit-appearance: none;
}

.sparta-contact-form__input::placeholder,
.sparta-contact-form__textarea::placeholder {
	color: #9cbae0;
}

.sparta-contact-form__input:focus,
.sparta-contact-form__textarea:focus {
	border-color: #054fbd;
}

/* Textarea (Message) */
.sparta-contact-form__textarea {
	height: 270px;
	resize: vertical;
	min-height: 120px;
}

/* ── PDF 上传区 ── */
.sparta-contact-form__upload {
	width: 100%;
	height: 272px;
	background: #edf5ff;
	border: 1px dashed #9cbae0;
	border-radius: 20px;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	gap: 20px;
	cursor: pointer;
	transition: background 0.2s, border-color 0.2s;
	margin-bottom: 24px;
	position: relative;
	box-sizing: border-box;
}

.sparta-contact-form__upload:hover {
	background: #dceeff;
	border-color: #054fbd;
}

.sparta-contact-form__upload.is-drag-over {
	background: #d0e4ff;
	border-color: #054fbd;
}

/* 隐藏原生 file input */
.sparta-contact-form__upload-input {
	position: absolute;
	inset: 0;
	opacity: 0;
	cursor: pointer;
	width: 100%;
	height: 100%;
}

.sparta-contact-form__upload-icon {
	width: 48px;
	height: 34px;
	fill: #012f73;
	flex-shrink: 0;
}

.sparta-contact-form__upload-text {
	font-family: 'Montserrat', sans-serif;
	font-size: 20px;
	font-weight: 600;
	line-height: 30px;
	color: #012f73;
	text-align: center;
}

.sparta-contact-form__upload-hint {
	font-family: 'Montserrat', sans-serif;
	font-size: 13px;
	font-weight: 400;
	color: #6b8ab8;
	text-align: center;
	margin-top: -12px;
}

.sparta-contact-form__upload-filename {
	font-family: 'Montserrat', sans-serif;
	font-size: 14px;
	font-weight: 500;
	color: #054fbd;
	margin-top: -8px;
	word-break: break-all;
	text-align: center;
	padding: 0 20px;
}

/* ── 提交按钮 ── */
.sparta-contact-form__submit {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 100%;
	height: 60px;
	background: #054fbd;
	color: #ffffff;
	font-family: 'Montserrat', sans-serif;
	font-size: 20px;
	font-weight: 600;
	line-height: 20px;
	border: none;
	border-radius: 10px;
	cursor: pointer;
	transition: background 0.2s;
	padding: 7px 23px;
	box-sizing: border-box;
}

.sparta-contact-form__submit:hover {
	background: #0342a0;
}

.sparta-contact-form__submit:disabled {
	background: #9cbae0;
	cursor: not-allowed;
}

/* ── 提示信息 ── */
.sparta-contact-form__notice {
	margin-top: 16px;
	padding: 14px 20px;
	border-radius: 10px;
	font-family: 'Montserrat', sans-serif;
	font-size: 15px;
	font-weight: 500;
	text-align: center;
	display: none;
}

.sparta-contact-form__notice.is-success {
	background: #edf7ed;
	color: #1a6e1a;
	border: 1px solid #a3d9a3;
	display: block;
}

.sparta-contact-form__notice.is-error {
	background: #fdecea;
	color: #b71c1c;
	border: 1px solid #f4b8b8;
	display: block;
}

/* ── 响应式 ── */
@media ( min-width: 1800px ) {
	.sparta-contact-form {
		padding: 96px 0 120px;
	}
	.sparta-contact-form__inner {
		max-width: 1600px;
		padding: 0 60px;
	}
	.sparta-contact-form__form {
		width: 1000px;
	}
}

@media ( min-width: 768px ) and ( max-width: 1279px ) {
	.sparta-contact-form {
		padding: 56px 0 72px;
	}
	.sparta-contact-form__inner {
		padding: 0 32px;
	}
	.sparta-contact-form__title {
		font-size: 38px;
		line-height: 48px;
		width: auto;
	}
	.sparta-contact-form__form {
		width: 100%;
	}
}

@media ( max-width: 767px ) {
	.sparta-contact-form {
		padding: 48px 0 64px;
	}
	.sparta-contact-form__inner {
		padding: 0 16px;
	}
	.sparta-contact-form__title {
		font-size: 32px;
		line-height: 40px;
		width: auto;
		margin-bottom: 36px;
	}
	.sparta-contact-form__form {
		width: 100%;
	}
	.sparta-contact-form__row {
		flex-direction: column;
		gap: 0;
	}
	.sparta-contact-form__label {
		font-size: 16px;
	}
	.sparta-contact-form__input,
	.sparta-contact-form__textarea {
		font-size: 15px;
	}
	.sparta-contact-form__upload {
		height: 180px;
	}
	.sparta-contact-form__upload-text {
		font-size: 16px;
	}
	.sparta-contact-form__submit {
		font-size: 18px;
	}
}