/* KAIERMEI EN 主样式 —— 设计令牌来源：中文站 skin/css */

:root {
	--km-green: #0e4829;
	--km-green-light: #208740;
	--km-orange: #ff6414;
	--km-text: #333333;
	--km-text-gray: #606266;
	--km-text-light: #777777;
	--km-border: #dcdcdc;
	--km-border-light: #efefef;
	--km-bg-soft: #f9f9f9;
	--km-bg-gray: #f7f7f7;
	--km-white: #ffffff;
	--km-font: "Inter", "Helvetica Neue", Arial, sans-serif;
	--km-font-heading: "Oswald", "Inter", Arial, sans-serif;
	--km-radius: 7px;
	--km-radius-lg: 15px;
	--km-shadow: 5px 5px 15px rgba(0, 0, 0, .1);
	--km-header-h: 90px;
	--km-container: 1200px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
	margin: 0;
	font-family: var(--km-font);
	font-size: 16px;
	line-height: 1.7;
	color: var(--km-text);
	background: var(--km-white);
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--km-green); text-decoration: none; }
a:hover { color: var(--km-orange); }

h1, h2, h3, h4 {
	font-family: var(--km-font-heading);
	line-height: 1.3;
	margin: 0 0 .5em;
	color: #0b1b26;
	letter-spacing: .2px;
}

h1 { font-size: 40px; font-weight: 600; }
h2 { font-size: 28px; font-weight: 600; }
h3 { font-size: 20px; font-weight: 500; }

p { margin: 0 0 1em; }

.km-container {
	width: 100%;
	max-width: var(--km-container);
	margin: 0 auto;
	padding: 0 20px;
}

.km-skip {
	position: absolute;
	left: -9999px;
}

.km-skip:focus {
	left: 10px;
	top: 10px;
	z-index: 999;
	background: #fff;
	padding: 8px 14px;
	border: 1px solid var(--km-green);
}

/* ---------------- Header ---------------- */

.km-header {
	position: relative;
	z-index: 50;
	background: #fff;
	border-bottom: 1px solid var(--km-border-light);
}

.km-header-inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	min-height: var(--km-header-h);
	gap: 20px;
}

.km-logo img { max-height: 56px; width: auto; }

.km-logo-text {
	font-family: var(--km-font-heading);
	font-size: 26px;
	font-weight: 600;
	letter-spacing: 2px;
	color: var(--km-green);
}

.km-nav { flex: 1; }

.km-nav-list {
	display: flex;
	align-items: stretch;
	justify-content: flex-end;
	list-style: none;
	margin: 0;
	padding: 0;
	gap: 2px;
}

.km-nav-item {
	position: relative;
	min-width: 96px;
	display: flex;
	align-items: center;
	justify-content: center;
	height: var(--km-header-h);
	border-bottom: 4px solid transparent;
	transition: border-color .2s;
}

.km-nav-item:hover { border-bottom-color: var(--km-green); }

.km-nav-link {
	display: block;
	padding: 0 12px;
	font-size: 16px;
	color: #000;
	white-space: nowrap;
	text-align: center;
}

.km-nav-item:hover > .km-nav-link { color: var(--km-green); }

/* 下拉 */
.km-menu {
	position: absolute;
	top: var(--km-header-h);
	left: 50%;
	transform: translateX(-50%);
	width: 760px;
	max-width: 96vw;
	display: none;
	background: #fff;
	border: 1px solid var(--km-border);
	border-top: 3px solid var(--km-green);
	box-shadow: 0 12px 30px rgba(0, 0, 0, .08);
	z-index: 60;
}

.km-nav-item:hover .km-menu,
.km-nav-item:focus-within .km-menu { display: block; }

.km-menu-inner { padding: 24px; }

.km-menu-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 10px;
}

.km-menu-card {
	display: flex;
	flex-direction: column;
	gap: 4px;
	padding: 12px 14px;
	border: 1px solid var(--km-border-light);
	border-radius: var(--km-radius);
	background: #fff;
	transition: border-color .2s, background .2s;
}

.km-menu-card:hover {
	border-color: var(--km-green);
	background: #f6faf7;
}

.km-menu-card-title {
	font-size: 15px;
	font-weight: 500;
	color: var(--km-text);
}

.km-menu-card:hover .km-menu-card-title { color: var(--km-green); }

.km-menu-card-desc {
	font-size: 12px;
	color: var(--km-text-light);
}

.km-menu-empty {
	grid-column: 1 / -1;
	font-size: 14px;
	color: var(--km-text-light);
	padding: 8px 0;
}

.km-header-right {
	display: flex;
	align-items: center;
	gap: 14px;
	white-space: nowrap;
}

.km-header-phone { display: flex; flex-direction: column; line-height: 1.2; }
.km-header-phone-label { font-size: 12px; color: var(--km-text-light); }
.km-header-phone-num { font-size: 16px; font-weight: 600; color: var(--km-green); }

.km-burger {
	display: none;
	flex-direction: column;
	justify-content: center;
	gap: 5px;
	width: 40px;
	height: 40px;
	padding: 0;
	border: 1px solid var(--km-border);
	background: #fff;
	border-radius: var(--km-radius);
	cursor: pointer;
}

.km-burger span {
	display: block;
	width: 20px;
	height: 2px;
	margin: 0 auto;
	background: var(--km-green);
}

/* ---------------- 移动端抽屉 ---------------- */

.km-mobile {
	position: fixed;
	top: 0;
	left: 0;
	bottom: 0;
	width: 82vw;
	max-width: 340px;
	background: #fff;
	z-index: 200;
	overflow-y: auto;
	transform: translateX(-100%);
	transition: transform .28s ease;
	box-shadow: 4px 0 24px rgba(0, 0, 0, .12);
}

.km-mobile.is-open { transform: translateX(0); }

.km-mobile-head {
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 16px 20px;
	border-bottom: 1px solid var(--km-border-light);
}

.km-mobile-title { font-family: var(--km-font-heading); font-size: 20px; color: var(--km-green); }

.km-mobile-close {
	border: 0;
	background: none;
	font-size: 26px;
	line-height: 1;
	cursor: pointer;
	color: var(--km-text-gray);
}

.km-mobile-list { list-style: none; margin: 0; padding: 8px 0; }
.km-mobile-list > li { border-bottom: 1px solid var(--km-border-light); }

.km-mobile-list a,
.km-mobile-toggle {
	display: flex;
	align-items: center;
	justify-content: space-between;
	width: 100%;
	padding: 14px 20px;
	font-size: 16px;
	color: var(--km-text);
	background: none;
	border: 0;
	text-align: left;
	font-family: inherit;
	cursor: pointer;
}

.km-caret {
	width: 8px;
	height: 8px;
	border-right: 2px solid var(--km-text-light);
	border-bottom: 2px solid var(--km-text-light);
	transform: rotate(45deg);
	transition: transform .2s;
}

.km-mobile-toggle[aria-expanded="true"] .km-caret { transform: rotate(-135deg); }

.km-mobile-sub {
	display: none;
	list-style: none;
	margin: 0;
	padding: 0 0 8px;
	background: var(--km-bg-soft);
}

.km-mobile-sub.is-open { display: block; }
.km-mobile-sub a { padding: 10px 20px 10px 34px; font-size: 14px; color: var(--km-text-gray); }

.km-mobile-foot {
	padding: 18px 20px 30px;
	border-top: 1px solid var(--km-border-light);
	display: flex;
	flex-direction: column;
	gap: 8px;
	font-size: 14px;
}

.km-mobile-mask {
	position: fixed;
	inset: 0;
	background: rgba(0, 0, 0, .45);
	z-index: 150;
}

/* ---------------- Footer ---------------- */

.km-footer {
	background: var(--km-green);
	color: #fff;
	padding: 56px 0 0;
	margin-top: 80px;
}

.km-footer-grid {
	display: grid;
	grid-template-columns: 1fr 1.4fr 1fr 1fr 1fr 1.2fr;
	gap: 10px;
	padding-bottom: 40px;
}

.km-footer-col h3 {
	color: #fff;
	font-size: 16px;
	margin-bottom: 16px;
}

.km-footer-col ul { list-style: none; margin: 0; padding: 0; }

.km-footer-col li { margin-bottom: 10px; }

.km-footer-col a { color: #fff; font-size: 14px; }
.km-footer-col a:hover { color: #ffd9a0; text-decoration: underline; }

.km-footer-line { font-size: 14px; margin: 0 0 8px; color: #fff; }
.km-footer-line span { opacity: .7; margin-right: 6px; }
.km-footer-line a { color: #fff; }
.km-footer-addr { line-height: 1.6; opacity: .9; }

.km-footer-bottom {
	border-top: 1px solid rgba(255, 255, 255, .25);
	padding: 16px 0;
}

.km-footer-bottom-inner {
	display: flex;
	justify-content: space-between;
	flex-wrap: wrap;
	gap: 8px;
	font-size: 13px;
	opacity: .85;
}

/* ---------------- 通用组件 ---------------- */

.km-main { min-height: 40vh; }

.km-section { padding: 64px 0; }
.km-section--soft { background: var(--km-bg-soft); }

.km-section-head { margin-bottom: 36px; }
.km-section-head h2 { margin-bottom: 8px; }
.km-section-sub { color: var(--km-text-gray); font-size: 16px; }

.km-btn {
	display: inline-block;
	padding: 12px 26px;
	background: var(--km-green);
	color: #fff;
	border-radius: var(--km-radius);
	font-size: 15px;
	transition: background .2s;
}

.km-btn:hover { background: var(--km-green-light); color: #fff; }
.km-btn--ghost { background: transparent; color: var(--km-green); border: 1px solid var(--km-green); }
.km-btn--ghost:hover { background: var(--km-green); color: #fff; }

.km-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.km-grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

.km-card {
	background: #fff;
	border: 1px solid var(--km-border-light);
	border-radius: var(--km-radius);
	overflow: hidden;
	transition: box-shadow .2s, transform .2s;
}

.km-card:hover { box-shadow: var(--km-shadow); transform: translateY(-2px); }

.km-card-thumb { aspect-ratio: 3 / 2; background: var(--km-bg-gray); overflow: hidden; }
.km-card-thumb img { width: 100%; height: 100%; object-fit: cover; }

.km-card-body { padding: 18px 20px 22px; }
.km-card-body h3 { font-size: 18px; margin-bottom: 6px; }
.km-card-body p { font-size: 14px; color: var(--km-text-gray); margin: 0; }

/* 面包屑 */
.km-breadcrumb {
	font-size: 13px;
	color: var(--km-text-light);
	padding: 18px 0;
	border-bottom: 1px solid var(--km-border-light);
}

.km-breadcrumb a { color: var(--km-text-light); }
.km-breadcrumb a:hover { color: var(--km-green); }
.km-breadcrumb span { margin: 0 8px; opacity: .5; }

/* 页面标题区 */
.km-page-head {
	background: var(--km-bg-soft);
	padding: 44px 0;
	border-bottom: 1px solid var(--km-border-light);
}

.km-page-head h1 { margin: 0 0 8px; font-size: 34px; }
.km-page-head p { margin: 0; color: var(--km-text-gray); max-width: 780px; }

/* 参数表（GEO 核心：表格化） */
.km-spec-table {
	width: 100%;
	border-collapse: collapse;
	font-size: 15px;
	background: #fff;
	border: 1px solid var(--km-border);
}

.km-spec-table caption {
	caption-side: top;
	text-align: left;
	font-weight: 600;
	padding: 0 0 12px;
	color: #0b1b26;
}

.km-spec-table th,
.km-spec-table td {
	padding: 12px 16px;
	border-bottom: 1px solid var(--km-border-light);
	text-align: left;
	vertical-align: top;
}

.km-spec-table th {
	width: 38%;
	background: var(--km-bg-soft);
	font-weight: 500;
	color: var(--km-text-gray);
}

/* FAQ */
.km-faq { border-top: 1px solid var(--km-border-light); }

.km-faq-item {
	border-bottom: 1px solid var(--km-border-light);
	padding: 20px 0;
}

.km-faq-q {
	font-size: 17px;
	font-weight: 600;
	color: #0b1b26;
	margin: 0 0 8px;
}

.km-faq-a { margin: 0; color: var(--km-text-gray); }

/* 表单 */
.km-form { display: grid; gap: 16px; max-width: 720px; }
.km-form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.km-form label { display: block; font-size: 14px; margin-bottom: 6px; color: var(--km-text-gray); }
.km-form input,
.km-form textarea {
	width: 100%;
	padding: 11px 14px;
	border: 1px solid var(--km-border);
	border-radius: var(--km-radius);
	font-family: inherit;
	font-size: 15px;
	background: #fff;
}

.km-form textarea { min-height: 140px; resize: vertical; }

/* ---------------- 首页 Hero ---------------- */

.km-hero {
	background: linear-gradient(135deg, #0e4829 0%, #14603a 55%, #0e4829 100%);
	color: #fff;
	padding: 76px 0 64px;
}

.km-hero h1 {
	color: #fff;
	font-size: 44px;
	max-width: 900px;
	margin-bottom: 18px;
}

.km-hero-sub {
	color: rgba(255, 255, 255, .88);
	font-size: 17px;
	max-width: 820px;
	margin-bottom: 28px;
}

.km-hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

.km-hero .km-btn { background: var(--km-orange); }
.km-hero .km-btn:hover { background: #e8570d; }
.km-hero .km-btn--ghost {
	background: transparent;
	border-color: rgba(255, 255, 255, .7);
	color: #fff;
}
.km-hero .km-btn--ghost:hover { background: rgba(255, 255, 255, .12); border-color: #fff; }

.km-hero-facts {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: 24px;
	list-style: none;
	margin: 44px 0 0;
	padding: 26px 0 0;
	border-top: 1px solid rgba(255, 255, 255, .22);
}

.km-hero-facts strong {
	display: block;
	font-size: 13px;
	text-transform: uppercase;
	letter-spacing: 1.2px;
	opacity: .65;
	margin-bottom: 6px;
	font-weight: 500;
}

.km-hero-facts span { font-size: 16px; }

/* ---------------- 详情与联系 ---------------- */

.km-single { max-width: 900px; }

.km-content h2 { margin-top: 36px; }
.km-content h3 { margin-top: 26px; }
.km-content table { width: 100%; border-collapse: collapse; margin: 20px 0; }
.km-content th, .km-content td { border: 1px solid var(--km-border); padding: 10px 14px; text-align: left; }
.km-content img { border-radius: var(--km-radius); }

.km-cta-box {
	margin-top: 56px;
	padding: 36px;
	background: var(--km-bg-soft);
	border-left: 4px solid var(--km-green);
	border-radius: var(--km-radius);
}

.km-cta-box h2 { margin-top: 0; font-size: 22px; }

.km-cta-section p { max-width: 720px; margin: 0 auto 24px; color: var(--km-text-gray); }

.km-note {
	color: var(--km-text-light);
	font-size: 15px;
	background: var(--km-bg-soft);
	padding: 16px 18px;
	border-radius: var(--km-radius);
	border-left: 3px solid var(--km-border);
}

.km-contact-grid {
	display: grid;
	grid-template-columns: 1.2fr 1fr;
	gap: 40px;
	align-items: start;
}

.km-contact-form {
	background: #fff;
	border: 1px solid var(--km-border-light);
	border-radius: var(--km-radius);
	padding: 28px;
}

.km-grid-2 {
	display: grid;
	grid-template-columns: 1.15fr 1fr;
	gap: 40px;
	align-items: start;
}

.km-cat-block { margin-bottom: 56px; }
.km-cat-block:last-child { margin-bottom: 0; }

.km-filter-bar {
	display: flex;
	flex-wrap: wrap;
	gap: 10px;
	margin-bottom: 32px;
}

.km-filter-item {
	padding: 8px 16px;
	border: 1px solid var(--km-border);
	border-radius: 30px;
	font-size: 14px;
	color: var(--km-text-gray);
	background: #fff;
}

.km-filter-item:hover {
	border-color: var(--km-green);
	color: var(--km-green);
	background: #f6faf7;
}

.km-card-facts {
	font-size: 13px !important;
	color: var(--km-green) !important;
	margin-top: 6px !important;
}

.km-pagination { margin-top: 40px; text-align: center; }
.km-pagination .nav-links { display: inline-flex; gap: 8px; }
.km-pagination a, .km-pagination span {
	padding: 8px 14px;
	border: 1px solid var(--km-border);
	border-radius: var(--km-radius);
	font-size: 14px;
}

/* ---------------- 响应式 ---------------- */

@media (max-width: 1200px) {
	.km-nav-item { min-width: 84px; }
	.km-nav-link { padding: 0 8px; font-size: 15px; }
}

@media (max-width: 991px) {
	.km-nav { display: none; }
	.km-burger { display: flex; }
	.km-header-phone { display: none; }
	.km-grid-3, .km-grid-4 { grid-template-columns: repeat(2, 1fr); }
	.km-footer-grid { grid-template-columns: repeat(3, 1fr); gap: 24px; }
	.km-section { padding: 44px 0; }
	h1 { font-size: 30px; }
}

@media (max-width: 576px) {
	.km-grid-3, .km-grid-4 { grid-template-columns: 1fr; }
	.km-footer-grid { grid-template-columns: repeat(2, 1fr); }
	.km-form-row { grid-template-columns: 1fr; }
	.km-page-head h1 { font-size: 26px; }
	.km-footer-bottom-inner { flex-direction: column; }
}