#brand{display:none;}
.appx .nav-link,.appx .plain,.appx .tool-btn{color:#333;}
.banner {
	color: #333;
	padding: 120px 0 100px;
	text-align: left;
	position: relative;
	overflow: hidden;
}

.banner_bt {
	width: 650px;
}

.banner h1 {
	font-size: 30px;
	font-weight: 700;
	margin-bottom: 24px;
	letter-spacing: 1px;
	line-height: 1.3;
}

.banner p {
	font-size: 15px;
	opacity: 0.92;
	max-width: 820px;
	line-height: 1.8;
	font-weight: 400;
	margin-bottom: 48px;
}

.banner-btn-wrap {
	display: flex;
	justify-content: flex-start;
	gap: 20px;
	flex-wrap: wrap;
}

.banner-btn-wrap a {
	display: inline-block;
	padding: 15px 42px;
	border-radius: 60px;
	text-decoration: none;
	font-weight: 600;
	font-size: 17px;
	transition: all 0.25s ease;
	letter-spacing: 0.3px;
}

.btn-white {
	background: #fff;
	color: #e50011;
}

.btn-white:hover {
	transform: translateY(-2px);
}

/* 标题块 */
.title-block {
	text-align: center;
	margin-bottom: 52px;
}

.title-block h2 {
	font-size: 32px;
	color: #2b0a0a;
	font-weight: 700;
	position: relative;
	display: inline-block;
	letter-spacing: 0.5px;
}

/* ===================== 按钮 ===================== */
.btn {
	display: inline-block;
	padding: 14px 36px;
	border-radius: 50px;
	font-weight: 600;
	font-size: 17px;
	cursor: pointer;
	text-align: center;
	transition: all 0.3s ease;
}

.btn-primary {
	background: #fff;
	color: #e50011;
}

.btn-primary:hover {
	background: #fff5f5;
	transform: translateY(-2px);
	box-shadow: 0 8px 20px rgba(229, 0, 17, 0.15);
}

.btn-outline {
	background: transparent;
	border: 2px solid #e50011;
	color: #e50011;
}

.btn-outline:hover {
	background: rgba(255, 255, 255, 0.15);
	transform: translateY(-2px);
}

.btn-cta {
	display: inline-block;
	background: #fff;
	color: #e50011;
	padding: 15px 42px;
	border-radius: 50px;
	font-size: 19px;
	font-weight: bold;
	transition: all 0.3s ease;
}

.btn-cta:hover {
	background: #fff5f5;
	transform: translateY(-2px);
	box-shadow: 0 10px 24px rgba(229, 0, 17, 0.2);
}

/* ===================== 区块通用 ===================== */
.section {
	padding: 60px 0;
}

.section-white {
	background: #f8f8f8;
}

.section-gray {
	background: #fff;
}

#section-gray{
    background: #eee;
}

.section-header {
	text-align: center;
	margin-bottom: 48px;
}

.section-title {
	font-size: 28px;
	color: #333;
	position: relative;
	display: inline-block;
	font-weight: 700;
}

.section-subtitle {
	color: #666;
	font-size: 16px;
	margin-top:10px;
}

.block-title {
	color: #e50011;
	font-size: 22px;
	margin-bottom: 24px;
	padding-left: 14px;
	border-left: 5px solid #e50011;
	font-weight: 700;
}

/* ===================== 卡片 ===================== */
.card {
	background: #ffffff;
	padding: 30px 28px;
	border-radius: 12px;
	box-shadow: 0 2px 12px rgba(229, 0, 17, 0.05);
	margin-bottom: 24px;
}

.card:last-child {
	margin-bottom: 0;
}

.card p {
	color: #555;
	font-size: 15px;
}

.card ul li {
	list-style: inside;
	margin-top: 20px;
	font-size: 15px;
	color: #555;
}

/* ===================== 配图容器 ===================== */
.img-box {
	width: 100%;
	border-radius: 10px;
	overflow: hidden;
	margin-bottom: 22px;
}

.img-box img{
    display:block;
    width:100%;
    height:100%;
}

.img-box svg {
	width: 100%;
	height: auto;
	display: block;
}

/* ===================== 提示框 ===================== */
.notice {
	padding: 16px 20px;
	margin-top: 20px;
	border-left: 5px solid #e50011;
}

.notice p {
	margin: 0;
	color: #555;
	font-size: 15px;
}

.notice strong {
	color: #e50011;
}

.notice-lg {
	padding: 24px 26px;
	margin-top: 30px;
	background: #fff;
}

.notice-lg ul {
	margin-top: 20px;
}

.notice-lg li {
	margin-bottom: 10px;
	color: #555;
	font-size: 15px;
}

.notice-lg li:last-child {
	margin-bottom: 0;
}

/* ===================== 网格布局 ===================== */
.grid-2 {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
	gap: 24px;
}

.grid-3 {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 24px;
}

.grid-4 {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 24px;
}

/* ===================== 优势卡片（带图标） ===================== */
.feature-card {
	background: #fff;
	padding: 30px 24px;
	transition: transform 0.3s ease, box-shadow 0.3s ease;
	border:1px solid #ffe0e2;
}

.feature-card:hover {
	transform: translateY(-5px);
}

.feature-icon {
	width: 56px;
	height: 56px;
	border-radius: 14px;
	background: linear-gradient(135deg, #ffe8e8, #ffd0d0);
	display: flex;
	align-items: center;
	justify-content: center;
	margin-bottom: 18px;
	font-size: 24px;
	color: #e50011;
	transition: all 0.35s ease;
	flex-shrink: 0;
}

.feature-card:hover .feature-icon {
	background: linear-gradient(135deg, #e50011, #b3000d);
	color: #fff;
	transform: scale(1.06);
}

.feature-card h3 {
	color: #333;
	margin-bottom: 14px;
	font-size: 18px;
	line-height: 1.5;
}

.feature-card p {
	color: #555;
	font-size: 15px;
}

/* ===================== 场景/工艺卡片 ===================== */
.scene-card {
	background: #f8f8f8;
	overflow: hidden;
	transition: transform 0.3s ease, box-shadow 0.3s ease;
	display: flex;
	flex-direction: column;
	height: 100%;
}

.scene-card:hover {
	transform: translateY(-5px);
}

.scene-card .img-box {
	margin-bottom: 0;
	border-radius: 0;
}

.scene-card-body {
	padding: 20px 22px 24px;
}

.scene-card-body h4 {
	color: #333;
	font-size: 17px;
	margin-bottom: 10px;
	line-height: 1.5;
	font-weight:700;
}

.scene-card-body p {
	color: #666;
	font-size: 14px;
}

/* 产品板块 */
.product-section {
	padding: 80px 0;
	background: #fff;
}

.product-fafafa{background: #f8f8f8;}

.prod-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(330px, 1fr));
	gap: 30px;
}

.prod-card {
	border: 1px solid #f2e2e2;
	overflow: hidden;
	background: #fff;
	transition: all 0.3s ease;
}

.prod-card:hover {
	transform: translateY(-6px);
}

.prod-img {
	width: 100%;
	height: auto;
}

.prod-img img {
	display: block;
	width: 100%;
	height: 100%;
	object-fit: cover;
}

.prod-head {
	background: linear-gradient(90deg, #b3000d, #e50011);
	color: #fff;
	padding: 18px;
	font-size: 20px;
	font-weight: 700;
	text-align: center;
	letter-spacing: 0.5px;
	display: block;
}

.prod-body {
	padding:30px;
}

.prod-body p.tags{
    font-size:20px;
    color:#e50011;
    font-weight:700;
    margin-bottom:20px;
}

.prod-body ul {
	list-style: none;
	color: #4a2c2c;
	font-size: 14px;
}

.prod-body li {
	margin: 5px 0;
	padding-left: 20px;
	position: relative;
	line-height: 1.4;
}

.prod-body li::before {
	content: "?";
	color: #e50011;
	font-weight: 700;
	font-size: 20px;
	position: absolute;
	left: 0;
	top: -5px;
}

/* ===================== 产品分类板块 ===================== */
.category-section {
	margin-bottom: 48px;
	margin-top: 30px;
}

.category-section:last-of-type {
	margin-bottom: 0;
}

/* ---------- 供电方式卡片 ---------- */
.supply-card {
	background: #fff;
	border-radius: 14px;
	padding: 28px 26px;
	box-shadow: 0 2px 12px rgba(229, 0, 17, 0.06);
	border: 1px solid #f2e6e6;
	transition: transform 0.3s ease, box-shadow 0.3s ease;
	position: relative;
	overflow: hidden;
}

.supply-card::before {
	content: '';
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 4px;
}

.supply-card-a1::before {
	background: linear-gradient(90deg, #e50011, #ff5c6a);
}

.supply-card-a2::before {
	background: linear-gradient(90deg, #ff7a45, #ffb08a);
}

.supply-card:hover {
	transform: translateY(-4px);
	box-shadow: 0 12px 28px rgba(229, 0, 17, 0.12);
}

.supply-card-head {
	display: flex;
	align-items: center;
	gap: 12px;
	margin-bottom: 22px;
	flex-wrap: wrap;
}

.supply-card-head h4 {
	font-size: 19px;
	color: #e50011;
	font-weight: 700;
	line-height: 1.4;
}

.supply-badge {
	display: inline-block;
	padding: 5px 14px;
	border-radius: 20px;
	font-size: 13px;
	font-weight: 700;
	letter-spacing: 0.5px;
	flex-shrink: 0;
}

.supply-badge-a1 {
	background: #ffe8e8;
	color: #e50011;
}

.supply-badge-a2 {
	background: #fff0e8;
	color: #ff7a45;
}

/* 规格列表 */
.supply-specs {
	list-style: none;
	padding: 0;
	margin: 0 0 22px;
	border-top: 1px dashed #f0dede;
}

.supply-specs li p {
	display: flex;
	justify-content: space-between;
	align-items: baseline;
	gap: 14px;
	padding: 12px 0;
	border-bottom: 1px dashed #f0dede;
	font-size: 14.5px;
}

.supply-specs li p:last-child {
	border-bottom: none;
}

.spec-label {
	color: #888;
	flex-shrink: 0;
}

.spec-value {
	color: #e50011;
	font-weight: 600;
	text-align: right;
	line-height: 1.6;
}

/* 代表型号 */
.supply-models {
	background: #fdf8f8;
	border-radius: 10px;
	padding: 16px 18px;
}

.models-label {
	font-size: 13px;
	color: #888;
	margin-bottom: 10px;
	font-weight: 600;
	letter-spacing: 0.5px;
}

.model-tags {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
}

.model-tag {
	display: inline-block;
	padding: 5px 12px;
	background: #fff;
	color: #e50011;
	border: 1px solid #f5c2c2;
	border-radius: 6px;
	font-size: 13px;
	font-weight: 600;
	transition: all 0.25s ease;
}

.model-tag:hover {
	background: #e50011;
	color: #fff;
	border-color: #e50011;
	transform: translateY(-2px);
}

/* ===================== 技术信息资料 ===================== */
.tech-section {
	padding: 70px 0;
	background: #f8f8f8;
}

.tech-section .section-header {
	margin-bottom: 52px;
}

.tech-list {
	list-style: none;
	padding: 0;
	margin: 0;
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 20px;
}

.tech-list li {
	display: flex;
	gap: 20px;
	padding: 26px 26px 24px;
	background: #fff;
	border: 1px solid #f2e6e6;
	transition: all 0.3s ease;
	position: relative;
	overflow: hidden;
}

.tech-list li:hover {
	transform: translateY(-4px);
}


.tech-list-icon {
	flex-shrink: 0;
	width: 48px;
	height: 48px;
	border-radius: 12px;
	background: linear-gradient(135deg, #ffe8e8, #ffd0d0);
	display: flex;
	align-items: center;
	justify-content: center;
	color: #e50011;
	font-size: 20px;
	transition: all 0.3s ease;
}

.tech-list li:hover .tech-list-icon {
	background: linear-gradient(135deg, #e50011, #b3000d);
	color: #fff;
	transform: scale(1.05);
	box-shadow: 0 6px 16px rgba(229, 0, 17, 0.3);
}

.tech-list-content {
	flex: 1;
	min-width: 0;
}

.tech-list-title {
	font-size: 16.5px;
	font-weight: 700;
	color: #333;
	margin-bottom: 8px;
	line-height: 1.5;
	display: flex;
	align-items: flex-start;
	gap: 8px;
	transition: color 0.25s ease;
}

.tech-list li:hover .tech-list-title {
	color: #e50011;
}

.tech-list-title i {
	color: #e50011;
	font-size: 15px;
	opacity: 0.8;
	margin-top: 4px;
	flex-shrink: 0;
}

.tech-list-desc {
	font-size: 14px;
	color: #888;
	line-height: 1.75;
	margin: 0 0 14px;
}

.tech-list-meta {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 12px;
	padding-top: 12px;
	border-top: 1px dashed #f0dede;
	flex-wrap: wrap;
}

.tech-list-date {
	font-size: 12.5px;
	color: #999;
	display: flex;
	align-items: center;
	gap: 6px;
	flex-shrink: 0;
}

.tech-list-date i {
	font-size: 12px;
	color: #999;
}

.tech-list-tag {
	display: flex;
	gap: 5px;
}

.tech-list-tag a {
	display: inline-block;
	font-size: 12px;
	color: #999;
	background: #f8f8f8;
	padding: 4px 12px;
	border-radius: 20px;
	font-weight: 600;
	line-height: 1.5;
	transition: all 0.25s ease;
	    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
}

.tech-list-tag a:hover {
	background: #e50011;
	color: #fff;
}

.tip-text {
	margin-top: 30px;
	color: #333;
	background: #f8f8f8;
	padding: 18px 24px;
	font-size: 15px;
	line-height: 1.7;
	border-left: 5px solid #e50011;
	display: flex;
	align-items: flex-start;
	gap: 12px;
}

#tip-text{background: #fff;}

.tip-text .tip-icon {
	font-size: 18px;
	flex-shrink: 0;
	line-height: 1.45;
	color: #e50011;
}

.dh3 div {
	font-size: 24px;
	margin-bottom: 20px;
	font-weight: 700;
}

.dh3 ul {
	margin-top: 20px;
}

.dh3 ul li {
	margin: 3px 0;
}
.dh3 ul li.li-h,.dh3 ul li.li-v{
    font-size: 17.5px;
    font-weight: 700;
    margin: 15px 0;
    display: flex;
    align-items: center;
    gap: 8px;
}
.dh3 ul li.li-h span,.dh3 ul li.li-v span{
    display: inline-block;
    font-size: 12.5px;
    font-weight: 600;
    padding: 2px 10px;
    border-radius: 20px;
    background:#e50011;
    color:#fff;
    letter-spacing: 0.4px;
}

/* ---------- 场景类型卡片 ---------- */
.scene-type-card {
	background: #fff;
	border-radius: 14px;
	padding: 26px 22px 22px;
	box-shadow: 0 2px 12px rgba(229, 0, 17, 0.06);
	border: 1px solid #f2e6e6;
	display: flex;
	flex-direction: column;
	transition: transform 0.3s ease, box-shadow 0.3s ease;
	position: relative;
	overflow: hidden;
}

.scene-type-card::after {
	content: '';
	position: absolute;
	bottom: 0;
	left: 0;
	width: 100%;
	height: 4px;
	opacity: 0;
	transition: opacity 0.3s ease;
}

.scene-type-card:hover {
	transform: translateY(-5px);
	box-shadow: 0 12px 28px rgba(229, 0, 17, 0.12);
}

.scene-type-card:hover::after {
	opacity: 1;
}

.scene-type-home::after {
	background: linear-gradient(90deg, #6bc7a0, #3ea87a);
}

.scene-type-medical::after {
	background: linear-gradient(90deg, #ff5c6a, #e50011);
}

.scene-type-industry::after {
	background: linear-gradient(90deg, #ffa06b, #ff7a45);
}

.scene-type-lab::after {
	background: linear-gradient(90deg, #a78bfa, #7c5ce0);
}

.scene-type-top {
	margin-bottom: 16px;
}

.scene-type-icon {
	display: block;
	width: 100%;
	height: 160px;
	background: #fdf2f2;
	overflow: hidden;
	margin-bottom: 20px;
	border-radius: 5px;
}

.scene-type-icon img {
	display: block;
	width: 100%;
	height: 100%;
	object-fit: cover;
}

.scene-type-top h4 {
	font-size: 17px;
	color: #e50011;
	font-weight: 700;
	line-height: 1.4;
}

.scene-type-desc {
	color: #666;
	font-size: 14px;
	line-height: 1.75;
	flex-grow: 1;
	margin-bottom: 18px;
}

.scene-type-footer {
	padding-top: 14px;
	border-top: 1px dashed #f0dede;
}

.scene-type-tag {
	display: inline-block;
	font-size: 12.5px;
	color: #e50011;
	background: #fdf2f2;
	padding: 5px 12px;
	border-radius: 20px;
	font-weight: 600;
	line-height: 1.5;
}

.scene-type-home .scene-type-tag {
	color: #1f8a5f;
	background: #e6f7f0;
}

.scene-type-industry .scene-type-tag {
	color: #c8421b;
	background: #fff0ec;
}

.scene-type-lab .scene-type-tag {
	color: #6d4dc4;
	background: #f0ecff;
}

/* ===================== 表格 ===================== */
.param-wrap {
	overflow-x: auto;
}

table {
	width: 100%;
	border-collapse: collapse;
	min-width: 760px;
}

thead th {
	padding: 16px 14px;
	text-align: center;
	background: #e50011;
	color: #fff;
	font-weight: 600;
	font-size: 15px;
	white-space: nowrap;
}

table td a h3 {
	font-size: 15px;
}

tbody td {
	padding: 15px 14px;
	text-align: center;
	font-size: 15px;
	color: #444;
	border-bottom: 1px solid #f5eaea;
}

tbody tr:nth-child(even) {
	background: #fdf8f8;
}

tbody tr:hover {
	background: #fff0f0;
}

tbody tr:last-child td {
	border-bottom: none;
}

tbody tr:hover a{color:#e50011;}

.table-note {
	margin-top:30px;
	color: #666;
	font-size: 14px;
	background: #fff;
	padding: 16px 20px;
	border: 1px solid #f2e2e2;
	border-left: 4px solid #e50011;
}

/* ============ 常见咨询问题 ============ */
#ask{background:var(--bg-soft);padding:80px 0;}
.ask-grid{
	display:grid;
	grid-template-columns:repeat(3,1fr);
	gap:22px;
}
.ask-card{
	background:#fff;
	padding:24px 22px;
	transition:all .28s;
}
.ask-card:hover{
	transform:translateY(-3px);
}
.ask-card h4{
	font-size:15px;
	color:var(--gray-1);
	font-weight:700;
	margin-bottom:8px;
	display:flex;
	align-items:center;
	gap:8px;
}
.ask-card h4 em{
	color:var(--red);
	font-size:14px;
	flex-shrink:0;
}
.ask-card p{
	font-size:13px;
	color:var(--gray-3);
	line-height:1.8;
}

/* ===================== CTA 区域 ===================== */
.cta-section {
	padding: 70px 0;
	background: linear-gradient(135deg, #b3000d 0%, #e50011 100%);
	color: #fff;
	text-align: center;
	position: relative;
	overflow: hidden;
}

.cta-section::before {
	content: '';
	position: absolute;
	bottom: -40%;
	left: -10%;
	width: 500px;
	height: 500px;
	background: rgba(255, 255, 255, 0.05);
	border-radius: 50%;
	pointer-events: none;
}

.cta-section h2 {
	font-size: 30px;
	margin-bottom: 16px;
	position: relative;
	z-index: 1;
}

.cta-section p {
	margin: 0 auto 32px;
	font-size: 18px;
	opacity: 0.95;
	position: relative;
	z-index: 1;
}

.cta-section .btn-cta {
	position: relative;
	z-index: 1;
}

/* ===== 模态框 ===== */
.modal-overlay {
	display: none;
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background: rgba(0, 0, 0, 0.55);
	backdrop-filter: blur(6px);
	z-index: 9999;
	justify-content: center;
	align-items: center;
	animation: fadeIn 0.25s ease;
}

.modal-overlay.active {
	display: flex;
}

.modal-box {
	background: white;
	max-width: 520px;
	width: 94%;
	border-radius: 32px;
	padding: 40px 36px 36px;
	box-shadow: 0 30px 60px rgba(179, 0, 13, 0.25);
	position: relative;
	animation: slideUp 0.3s ease;
	max-height: 96vh;
	overflow-y: auto;
}

.modal-close {
	position: absolute;
	top: 16px;
	right: 20px;
	font-size: 28px;
	background: none;
	border: none;
	color: #d4a8a8;
	cursor: pointer;
	transition: 0.2s;
	padding: 4px 8px;
	line-height: 1;
}

.modal-close:hover {
	color: #e50011;
	transform: rotate(90deg);
}

.modal-box h3 {
	font-size: 24px;
	font-weight: 700;
	color: #2b0a0a;
	margin-bottom: 8px;
}

.modal-box h3 i {
	color: #e50011;
	margin-right: 8px;
}

.modal-box .sub {
	color: #8a6b6b;
	font-size: 15px;
	margin-bottom: 28px;
	border-bottom: 1px solid #f0dede;
	padding-bottom: 16px;
}

.modal-box label {
	display: block;
	font-weight: 600;
	font-size: 14px;
	color: #3a2020;
	margin-bottom: 6px;
}

.modal-box input,
.modal-box textarea {
	width: 100%;
	padding: 12px 0;
	border: 1.5px solid #f0dede;
	border-radius: 14px;
	font-size: 15px;
	transition: 0.2s;
	background: #fdf8f8;
	margin-bottom: 18px;
	font-family: inherit;
	text-indent: 10px;
}

.modal-box .szym {
	display: grid;
	gap: 40px;
	grid-template-columns: 1fr 0.5fr;
}

.modal-box .szym img {
	display: block;
	width: 100%;
	height:46px;
	border-radius: 10px;
}

.modal-box input:focus,
.modal-box textarea:focus {
	outline: none;
	border-color: #e50011;
	background: white;
	box-shadow: 0 0 0 4px rgba(229, 0, 17, 0.12);
}

.modal-box textarea {
	min-height: 90px;
	resize: vertical;
}

.modal-box .btn-submit {
	width: 100%;
	padding: 14px;
	background: #e50011;
	border: none;
	border-radius: 60px;
	font-weight: 700;
	font-size: 18px;
	color: #fff;
	cursor: pointer;
	transition: 0.2s;
	box-shadow: 0 6px 18px rgba(229, 0, 17, 0.3);
}

.modal-box .btn-submit:hover {
	background: #e50011;
	transform: translateY(-2px);
	box-shadow: 0 10px 28px rgba(229, 0, 17, 0.4);
}

.modal-box .btn-submit i {
	margin-right: 8px;
}

.modal-box .form-footer {
	text-align: center;
	font-size: 13px;
	color: #a98a8a;
	margin-top: 16px;
}

@keyframes fadeIn {
	from {
		opacity: 0;
	}

	to {
		opacity: 1;
	}
}

@keyframes slideUp {
	from {
		transform: translateY(40px);
		opacity: 0;
	}

	to {
		transform: translateY(0);
		opacity: 1;
	}
}

/* ============================================================
   响应式（全部集中到底部）
   顺序：1380 → 1280 → 992 → 900 → 768 → 640 → 480
   ============================================================ */

/* ===================== 1380px 大屏 ===================== */
@media (max-width: 1380px) {

	.banner {
		padding: 90px 0;
	}

	.banner_bt {
		width: 600px;
	}

	.banner h1 {
		font-size: 28px;
	}

	.banner p {
		font-size: 14.5px;
		max-width: 760px;
		margin-bottom: 42px;
	}

	.section {
		padding: 54px 0;
	}

	.product-section {
		padding: 66px 0;
	}

	.tech-section {
		padding: 62px 0;
	}

	.cta-section {
		padding: 62px 0;
	}

	.title-block h2 {
		font-size: 30px;
	}

	.grid-3,
	.grid-4 {
		gap: 20px;
	}

	.prod-grid {
		gap: 26px;
	}

	.tech-list {
		gap: 18px;
	}

	.tech-list li {
		padding: 24px 22px 22px;
	}

	.supply-card {
		padding: 26px 22px;
	}

	.scene-card-body {
		padding: 18px 20px 22px;
	}
}

/* ===================== 1280px 中屏 ===================== */
@media (max-width: 1280px) {

	.banner {
		padding: 90px 0;
	}

	.banner_bt {
		width: 560px;
	}

	.banner h1 {
		font-size: 26px;
		margin-bottom: 20px;
	}

	.banner p {
		font-size: 14px;
		line-height: 1.75;
		margin-bottom: 36px;
	}

	.banner-btn-wrap a {
		padding: 14px 36px;
		font-size: 16px;
	}

	.section {
		padding: 48px 0;
	}

	.product-section {
		padding: 58px 0;
	}

	.tech-section {
		padding: 56px 0;
	}

	.cta-section {
		padding: 58px 0;
	}

	.title-block {
		margin-bottom: 42px;
	}

	.title-block h2 {
		font-size: 28px;
	}

	.section-header {
		margin-bottom: 38px;
	}

	.grid-4 {
		grid-template-columns: repeat(2, 1fr);
	}

	.tech-list {
		grid-template-columns: repeat(2, 1fr);
	}

	.prod-grid {
		grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
		gap: 22px;
	}

	.card {
		padding: 26px 24px;
	}

	.feature-card {
		padding: 26px 22px;
	}

	.supply-card {
		padding: 24px 20px;
	}

	.supply-card-head h4 {
		font-size: 18px;
	}

	.tech-list li {
		padding: 22px 20px;
	}

	.tech-list-title {
		font-size: 16px;
	}

	.cta-section h2 {
		font-size: 27px;
	}

	.cta-section p {
		font-size: 16px;
	}

	.ask-grid {
		gap: 20px;
	}

	.ask-card {
		padding: 22px 20px;
	}
}

/* ===================== 992px ===================== */
@media (max-width: 992px) {
	.hero h1 {
		font-size: 32px;
	}
	.ask-grid {
		grid-template-columns: repeat(2, 1fr);
	}
}

/* ===================== 900px 手机端 ===================== */
@media (max-width: 900px) {
	/* 原有 900 规则 */
	.banner {
		background: url(/template/pc/skin/css/../images/piston_phone.jpg) no-repeat bottom!important;
		background-size: cover!important;;
	}
	.banner h1 {
		font-size: 32px;
	}
	.banner p {
		font-size: 16px;
	}
	.title-block h2 {
		font-size: 26px;
	}
	.convert-section h2 {
		font-size: 28px;
	}
	.compare-table th,
	.compare-table td {
		padding: 12px;
		font-size: 13px;
	}
	.scene-grid {
		grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
		gap: 20px;
	}
	.adv-grid {
		grid-template-columns: repeat(2, 1fr);
		gap: 10px;
	}
	.title-block {
		margin-bottom: 20px;
	}
	.tech-list-desc {
		font-size: 12px;
		line-height: 1.55;
	}

	/* 新增 900 规则（覆盖在上方之后） */

	.banner {
		padding: 100px 0 58px;
	}

	.banner_bt {
		width: auto;
		max-width: 100%;
	}

	.banner h1 {
		font-size: 28px;
		margin-bottom: 18px;
	}

	.banner p {
		font-size: 14px;
		line-height: 1.75;
		margin-bottom: 30px;
	}

	.banner-btn-wrap {
		display: grid;
		grid-template-columns: repeat(2, 1fr);
		gap: 14px;
	}

	.banner-btn-wrap a {
		display: block;
		width: auto;
		padding: 14px 12px;
		font-size: 14px;
		text-align: center;
	}

	.section {
		padding: 44px 0;
	}

	.product-section {
		padding: 50px 0;
	}

	.tech-section {
		padding: 50px 0;
	}

	.cta-section {
		padding: 48px 0;
	}

	.title-block {
		margin-bottom: 30px;
	}

	.title-block h2 {
		font-size: 25px;
	}

	.grid-2,
	.grid-3,
	.grid-4 {
		grid-template-columns: repeat(2, 1fr);
		gap: 16px;
	}

	.tech-list {
		grid-template-columns: repeat(1, 1fr);
		gap: 16px;
	}

	.ask-grid {
		grid-template-columns: repeat(2, 1fr);
		gap: 18px;
	}

	.prod-grid {
		grid-template-columns: 1fr;
		gap: 20px;
	}

	.card {
		padding: 22px 18px;
	}

	.feature-card {
		padding: 20px 18px;
	}

	.supply-card {
		padding: 22px 18px;
	}

	.supply-card-head h4 {
		font-size: 17px;
	}

	.tech-list li {
		padding: 18px;
	}

	.tech-list-desc {
		font-size: 12.5px;
		line-height: 1.6;
	}

	.scene-card-body {
		padding: 16px 18px 20px;
	}

	.scene-type-card {
		padding: 20px 16px 18px;
	}

	.scene-type-icon {
		height: 120px;
	}

	.cta-section h2 {
		font-size: 22px;
	}

	.cta-section p {
		font-size: 15px;
	}

	.tip-text {
		padding: 16px 18px;
		font-size: 14px;
	}

	thead th {
		padding: 12px 10px;
		font-size: 14px;
	}

	tbody td {
		padding: 12px 10px;
		font-size: 14px;
	}

	.modal-box {
		padding: 32px 24px 28px;
		border-radius: 24px;
	}

	.modal-box h3 {
		font-size: 21px;
	}

	.modal-box .szym {
		grid-template-columns: 1fr 0.6fr;
		gap: 24px;
	}
}

/* ===================== 768px ===================== */
@media (max-width: 768px) {
	/* 原有 768 第一段 */
	.ask-grid {
		grid-template-columns: 1fr;
	}
	.ask-card {
		padding: 20px 18px;
	}
	.section {
		padding: 44px 0;
	}
	.hero {
		padding: 56px 0;
	}
	.hero h1 {
		font-size: 26px;
	}
	.hero p {
		font-size: 16px;
	}
	.section-title {
		font-size: 23px;
	}
	.block-title {
		font-size: 19px;
	}
	.btn {
		padding: 12px 28px;
		font-size: 15px;
	}
	.dh3 ul li.li-h,
	.dh3 ul li.li-v {
		font-size: 15px;
	}
	.dh3 ul li {
		font-size: 13px;
	}
	.dh3 ul li.li-h span,
	.dh3 ul li.li-v span {
		font-size: 12px;
	}
	.prod-body p.tags {
		font-size: 15px;
		margin-bottom: 15px;
	}
	.btn-cta {
		padding: 13px 32px;
		font-size: 17px;
	}
	.cta-section h2 {
		font-size: 18px;
	}
	.cta-section p {
		font-size: 13px;
	}
	.card {
		padding: 24px 20px;
	}
	.cta-section {
		padding: 40px 0;
	}
	.grid-2,
	.grid-3,
	.grid-4 {
		gap: 18px;
	}
	.category-head {
		gap: 12px;
		margin-bottom: 22px;
		padding-bottom: 16px;
	}
	.category-icon {
		width: 40px;
		height: 40px;
		font-size: 19px;
		border-radius: 10px;
	}
	.category-head-title {
		font-size: 19px;
	}
	.category-head-desc {
		font-size: 13px;
	}
	.supply-card {
		padding: 24px 20px;
	}
	.supply-card-head h4 {
		font-size: 17px;
	}
	.supply-specs li {
		font-size: 14px;
		padding: 10px 0;
	}
	.tech-list {
		grid-template-columns: repeat(1, 1fr);
	}
	.tech-list li {
		padding: 15px;
	}
	.tech-list-title {
		font-size: 15px;
	}
	.scene-type-card {
		padding: 10px;
	}
	.scene-type-top h4 {
		font-size: 16px;
	}
	.scene-type-icon {
		width: 100%;
		height: 100px;
	}
	.category-section {
		margin-bottom: 38px;
	}
	.intro-strip {
		padding: 20px 22px;
		gap: 18px;
		margin-bottom: 34px;
	}
	.intro-strip-icon {
		width: 44px;
		height: 44px;
		font-size: 22px;
	}
	.intro-strip-title {
		font-size: 16px;
	}
	.intro-strip-desc {
		font-size: 13px;
	}
	.intro-tag {
		font-size: 12px;
		padding: 5px 11px;
	}
	.faq-question {
		padding: 18px 20px;
	}
	.faq-question h4 {
		font-size: 15px;
	}
	.faq-toggle {
		width: 28px;
		height: 28px;
	}
	.faq-toggle::before {
		width: 12px;
	}
	.faq-toggle::after {
		height: 12px;
	}
	.faq-item.active .faq-answer {
		padding: 0 20px 22px 20px;
	}
	.faq-answer p {
		font-size: 14px;
	}
	.feature-icon {
		width: 50px;
		height: 50px;
		font-size: 21px;
		border-radius: 12px;
	}
	.card p {
		font-size: 13px;
	}
	.card ul li {
		font-size: 13px;
		margin-top: 10px;
	}
	.section-header {
		margin-bottom: 20px;
	}
	.grid-3,
	.grid-4 {
		grid-template-columns: repeat(2, 1fr);
	}
	.feature-card {
		padding: 15px;
	}
	.supply-specs li p {
		padding: 0;
	}
	.scene-card-body {
		padding: 15px;
	}

	/* 原有 768 第二段（banner 等） */
	.banner {
		padding: 80px 0 65%;
	}
	.banner_bt {
		width: auto;
	}
	.banner h1 {
		font-size: 26px;
	}
	.banner p {
		font-size: 13px;
		padding: 0;
		margin-bottom: 30px;
	}
	.banner-btn-wrap a {
		display: block;
		width: auto;
		max-width: initial;
		margin: 0;
		padding: 15px;
		font-size: 13px;
		text-align: center;
	}
	.banner-btn-wrap {
		flex-direction: column;
		align-items: center;
		display: grid;
		grid-template-columns: repeat(2, 1fr);
	}
	.pain-section,
	.advantage-section,
	.product-section,
	.compare-section,
	.scene-section,
	.faq-section,
	.convert-section {
		padding: 30px 0;
	}
	.title-block h2 {
		font-size: 24px;
	}
	.prod-grid {
		grid-template-columns: 1fr;
	}
	.convert-section h2 {
		font-size: 15px;
	}
	.convert-section p {
		font-size: 12px;
		padding: 0 10px;
	}
	.convert-btn {
		padding: 16px 40px;
		font-size: 15px;
	}
	.adv-icon {
		width: 54px;
		height: 54px;
	}
	.adv-icon svg {
		width: 28px;
		height: 28px;
	}
	.scene-subtitle {
		font-size: 18px;
		margin-bottom: 20px;
	}
	.scene-grid {
		grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
		gap: 16px;
		margin-bottom: 44px;
	}
	.scene-img {
		height: 120px;
		font-size: 38px;
	}
	.scene-icon {
		font-size: 42px;
	}
	.scene-content {
		padding: 18px 16px 20px;
	}
	.scene-content h4 {
		font-size: 16px;
	}
	.scene-content p {
		font-size: 13.5px;
	}
	.scene-tip {
		font-size: 14px;
		padding: 16px 18px;
	}
}

/* ===================== 640px ===================== */
@media (max-width: 640px) {
	.grid-3,
	.grid-4,
	.ask-grid {
		grid-template-columns: 1fr;
	}

	.modal-box .szym {
		grid-template-columns: 1fr;
		gap: 14px;
	}
}

/* ===================== 480px ===================== */
@media (max-width: 480px) {
	/* 原有 480 第一段 */
	.hero h1 {
		font-size: 15px;
	}
	.hero p {
		font-size: 12px;
	}
	.hero-btns {
		flex-direction: column;
	}
	.btn {
		display: block;
		width: 100%;
	}
	.section-title {
		font-size: 20px;
	}

	.section-subtitle {
		font-size: 13px;
	}
	.dh3 div {
		font-size: 18px;
	}
	.dh3 p {
		font-size: 12px;
	}
	.dh3 ul li {
		margin: 10px 0;
	}
	tbody td {
		font-size: 12px;
		padding: 10px;
	}
	thead th {
		padding: 10px;
	}
	.notice-lg {
		padding: 15px;
	}
	.notice-lg p {
		font-size: 12px;
	}
	.scene-type-icon {
		margin-bottom: 15px;
	}
	.scene-type-desc {
		font-size: 12px;
		line-height: 1.55;
	}
	.scene-type-tag {
		font-size: 12px;
	}
	.feature-card p {
		font-size: 12px;
	}
	.feature-card h3 {
		font-size: 16px;
	}
	.scene-card-body h4 {
		font-size: 16px;
	}
	.supply-card-head {
		gap: 8px;
	}
	.supply-badge {
		padding: 4px 10px;
		font-size: 12px;
	}
	.supply-specs li {
		flex-direction: column;
		align-items: flex-start;
		gap: 4px;
	}
	.spec-value {
		text-align: left;
	}
	.model-tags {
		gap: 6px;
	}
	.model-tag {
		font-size: 12px;
		padding: 4px 10px;
	}
	.intro-strip {
		flex-direction: column;
		align-items: flex-start;
	}
	.intro-strip-tags {
		width: 100%;
	}
	.feature-icon {
		width: 46px;
		height: 46px;
		font-size: 19px;
		border-radius: 11px;
		margin-bottom: 14px;
	}

	/* 原有 480 模态框 */
	.modal-box {
		padding: 28px 20px 28px;
	}
	.modal-box h3 {
		font-size: 20px;
	}

	/* 原有 480 第二段（banner 等） */
	.banner h1 {
		font-size: 15px;
	}
	.title-block h2 {
		font-size: 21px;
	}
	.adv-card h3 {
		font-size: 15px;
	}
	.prod-head {
		font-size: 15px;
		padding: 15px;
	}
	.param-table th {
		font-size: 13px;
	}
	.param-table td a h3 {
		font-size: 12px;
	}
	.param-table th,
	.param-table td {
		font-size: 12px;
		padding: 12px;
	}
	.adv-card {
		padding: 15px;
	}
	.adv-card p {
		font-size: 12px;
		line-height: 1.4;
	}
	.pain-item {
		padding: 15px;
	}
	.pain-item h3 {
		font-size: 15px;
		margin-bottom: 10px;
	}
	.pain-item p {
		font-size: 12px;
		line-height: 1.4;
	}
	.prod-body {
		padding: 15px;
	}
	.prod-body ul {
		font-size: 12px;
	}
	.scene-grid {
		grid-template-columns: 1fr 1fr;
		gap: 12px;
	}
	.scene-img {
		height: 100px;
		font-size: 32px;
	}
	.scene-icon {
		font-size: 36px;
	}
	.scene-content {
		padding: 14px 12px 16px;
	}
	.scene-content h4 {
		font-size: 14px;
		margin-bottom: 6px;
	}
	.scene-content p {
		font-size: 12px;
		line-height: 1.55;
	}
}