/*
Theme Name: YUTANK 中文准备版（测试安装版）
Theme URI: https://www.yutank.com
Author: YUTANK
Author URI: https://www.yutank.com
Description: YUTANK 中文主题准备版，包含主要页面和模板中文化；15 个案例及 9 篇博客中文审核数据另存于主题目录外，尚未导入或上线。
Version: 1.0.15-cn-test
Requires at least: 6.0
Tested up to: 6.7
Requires PHP: 8.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: yutank
Tags: business, custom-menu, featured-images, translation-ready
*/

/* ==========================================================================
   1. Design Tokens（设计变量）
   ========================================================================== */
:root {
	/* Brand — 偏蓝·青色系（方案 B） */
	--brand-700: #0e7490;
	--brand-600: #0891b2;
	--brand-500: #06b6d4;
	--brand-50: #ecfeff;

	/* Ink — 工程深色 */
	--ink-900: #0a2a3a;
	--ink-700: #16444e;

	/* Neutral — 中性色 */
	--gray-900: #1f2937;
	--gray-600: #6b7280;
	--gray-200: #e5e7eb;
	--gray-50: #f8fafb;
	--white: #ffffff;

	/* Functional — 功能色 */
	--cta: #f59e0b;
	--cta-dark: #d97706;
	--success: #16a34a;
	--danger: #dc2626;

	/* Typography */
	--font-heading: 'Montserrat', 'Sora', 'Inter', -apple-system, sans-serif;
	--font-body: 'Noto Sans', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

	/* Layout */
	--container: 1280px;
	--radius-md: 8px;
	--radius-lg: 12px;
	--border: 0.5px solid var(--gray-200);
}

/* ==========================================================================
   2. Reset & Base
   ========================================================================== */
*,
*::before,
*::after {
	box-sizing: border-box;
}

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

body {
	margin: 0;
	font-family: var(--font-body);
	font-size: 16px;
	line-height: 1.6;
	color: var(--gray-900);
	background: var(--white);
	-webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
	font-family: var(--font-heading);
	font-weight: 500;
	line-height: 1.25;
	color: var(--ink-900);
	margin: 0 0 0.5em;
}

h1 { font-size: 2.25rem; }
h2 { font-size: 1.75rem; }
h3 { font-size: 1.25rem; }

p { margin: 0 0 1em; }

a {
	color: var(--brand-600);
	text-decoration: none;
}

a:hover {
	color: var(--brand-700);
	text-decoration: underline;
}

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

ul, ol {
	margin: 0 0 1em;
	padding-left: 1.25em;
}

/* ==========================================================================
   3. Layout
   ========================================================================== */
.container {
	max-width: var(--container);
	margin-left: auto;
	margin-right: auto;
	padding-left: 20px;
	padding-right: 20px;
}

.section {
	padding: 64px 0;
}

/* 与下方板块间距减半（去掉本板块底部 padding） */
.section--tight-bottom {
	padding-bottom: 0;
}

.section--gray {
	background: var(--gray-50);
}

.section__label {
	display: none;
	font-family: var(--font-heading);
	font-size: 1.25rem;
	font-weight: 500;
	letter-spacing: 0.02em;
	color: var(--brand-600);
	text-transform: uppercase;
	margin-bottom: 4px;
}

.section__title {
	font-size: 2rem;
	font-weight: 700;
	margin-bottom: 16px;
}

.section__title:has(+ .grid),
.section__title:has(+ .faq__list) {
	margin-bottom: 40px;
}

.section__lead {
	max-width: 760px;
	color: var(--gray-600);
	font-size: 1.05rem;
	margin-bottom: 32px;
}

/* ==========================================================================
   4. Buttons
   ========================================================================== */
.btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	padding: 12px 24px;
	border-radius: var(--radius-md);
	font-family: var(--font-heading);
	font-size: 0.95rem;
	font-weight: 500;
	line-height: 1;
	cursor: pointer;
	transition: background-color 0.2s, border-color 0.2s, color 0.2s;
	border: 0.5px solid transparent;
}

.btn--primary {
	background: var(--brand-600);
	color: var(--white);
}

.btn--primary:hover {
	background: var(--brand-700);
	color: var(--white);
	text-decoration: none;
}

.btn--outline {
	background: transparent;
	border: 0.5px solid var(--brand-600);
	color: var(--brand-600);
}

.btn--outline:hover {
	background: var(--brand-50);
	color: var(--brand-700);
	text-decoration: none;
}

.btn--cta {
	background: var(--cta);
	color: var(--white);
}

.btn--cta:hover {
	background: var(--cta-dark);
	color: var(--white);
	text-decoration: none;
}

.btn--lg {
	padding: 16px 32px;
	font-size: 1rem;
}

.btn--white {
	background: var(--white);
	color: var(--ink-900);
}

.btn--white:hover {
	background: #e2e8f0;
	color: var(--ink-900);
	text-decoration: none;
}

.btn--ghost {
	background: transparent;
	border: 0.5px solid rgba(255, 255, 255, 0.7);
	color: var(--white);
}

.btn--ghost:hover {
	background: rgba(255, 255, 255, 0.14);
	color: var(--white);
	text-decoration: none;
}

/* ==========================================================================
   5. Cards
   ========================================================================== */
.card {
	background: var(--white);
	border: var(--border);
	border-radius: var(--radius-lg);
	padding: 20px;
}

.card__media {
	background: var(--brand-50);
	margin-bottom: 14px;
	overflow: hidden;
}

img.card__media {
	display: block;
	width: 100%;
	height: 380px;
	object-fit: cover;
}

.card--plain {
	background: transparent;
	border: none;
	border-radius: 0;
	padding: 0;
}

.card--plain .card__media {
	margin-bottom: 16px;
}

/* 产品卡：无边框 + 列间竖线分隔（利乐 Dairy categories 风格） */
.card--product {
	background: transparent;
	border: none;
	border-radius: 0;
	padding: 0;
}

.card--product .card__media {
	aspect-ratio: 3 / 2;
	min-height: 0;
}

.card--product img.card__media {
	height: auto;
}

.card--product .card__media-link {
	display: block;
	line-height: 0;
}

/* 应用场景卡：无边框图文（图在上、文字在下，列间竖线分隔，利乐 Dairy categories 风格） */
.card--app .card__media {
	aspect-ratio: 3 / 2;
	min-height: 0;
}

.card--app img.card__media {
	height: auto;
}

/* 产品网格：上行 3 大图 + 下行 4 小卡（文字叠加在图片内） */
.prods {
	display: grid;
	grid-template-columns: repeat(12, 1fr);
	grid-template-rows: 280px 220px;
	grid-auto-flow: dense;
	gap: 16px;
}

.prod {
	position: relative;
	display: block;
	overflow: hidden;
	background: var(--brand-50);
	text-decoration: none;
}

.prod--lg { grid-column: span 4; grid-row: span 1; }
.prod--md { grid-column: span 3; grid-row: span 1; }
.prod--sm { grid-column: span 3; grid-row: span 1; }

.prod__media {
	position: absolute;
	inset: 0;
	min-height: 0;
}

img.prod__media {
	width: 100%;
	height: 100%;
	object-fit: cover;
	background: #ecfeff;
}

.prod::after {
	content: '';
	position: absolute;
	inset: 0;
	z-index: 1;
	border-radius: inherit;
	background: linear-gradient(to top, rgba(6, 30, 40, 0.60) 0%, rgba(6, 30, 40, 0.49) 5%, rgba(6, 30, 40, 0.37) 15%, rgba(6, 30, 40, 0.15) 33%, rgba(6, 30, 40, 0.05) 45%, transparent 100%);
}

.prod__caption {
	position: absolute;
	left: 0;
	right: 0;
	bottom: 0;
	z-index: 2;
	display: block;
	padding: 56px 20px 18px;
}

.prod__title {
	display: block;
	font-family: var(--font-heading);
	font-size: 1.15rem;
	font-weight: 600;
	color: var(--white);
	margin-bottom: 4px;
}

.prod__desc {
	display: block;
	font-size: 0.85rem;
	line-height: 1.5;
	color: rgba(255, 255, 255, 0.82);
	max-width: 92%;
}

/* 项目案例：9 张图文卡片网格（文字叠加在图片内 + 渐变蒙版） */
.projs {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 10px;
}

.proj {
	position: relative;
	display: block;
	overflow: hidden;
	min-height: 240px;
	text-decoration: none;
	transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.proj:hover {
	transform: translateY(-4px);
	box-shadow: 0 12px 24px rgba(10, 42, 58, 0.12);
}

.proj__media {
	position: absolute;
	inset: 0;
	width: 100%;
	height: 100%;
	object-fit: cover;
}

.proj__caption {
	position: absolute;
	left: 0;
	right: 0;
	bottom: 0;
	z-index: 2;
	display: flex;
	flex-direction: column;
	gap: 4px;
	padding: 42px 18px 16px;
	background: linear-gradient(to top, rgba(10, 42, 58, 0.92) 0%, rgba(10, 42, 58, 0.5) 55%, transparent 100%);
}

.proj__title {
	display: block;
	font-family: var(--font-heading);
	font-size: 1.02rem;
	font-weight: 600;
	color: var(--white);
}

.proj__desc {
	display: block;
	font-size: 0.82rem;
	line-height: 1.5;
	color: rgba(255, 255, 255, 0.85);
}

@media (max-width: 900px) {
	.projs { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
	.projs { grid-template-columns: 1fr; }
}

@media (max-width: 900px) {
	.prods { grid-template-columns: repeat(2, 1fr); grid-template-rows: none; grid-auto-rows: 220px; }
	.prod--lg, .prod--md, .prod--sm { grid-column: span 1; grid-row: span 1; }
}

@media (max-width: 560px) {
	.prods { grid-template-columns: 1fr; grid-auto-rows: 240px; }
	.prod--lg, .prod--md, .prod--sm { grid-column: span 1; grid-row: span 1; }
}

/* 灰色竖线分隔（利乐风格：竖线居中、各列等宽） */
/* 用 .grid.grid--divider 提高特异性，避免被后文 .grid 的 gap:20px 覆盖 */
.grid.grid--divider {
	column-gap: 48px;
	row-gap: 48px;
}

.grid--divider > * {
	position: relative;
}

/* 竖线用伪元素画在列间距正中间，不压缩列内容，保证各列图片等宽 */
.grid--divider > * + *::before {
	content: "";
	position: absolute;
	top: 0;
	bottom: 0;
	left: -24px;
	width: 1px;
	background: var(--gray-200);
}

/* 多列换行：每行首列不画竖线 */
.grid--divider.grid--3 > *:nth-child(3n+1)::before,
.grid--divider.grid--4 > *:nth-child(4n+1)::before,
.grid--divider.grid--5 > *:nth-child(5n+1)::before {
	display: none;
}

/* 等宽两列无竖线变体 */
.grid--divider--flat > * + *::before {
	display: none;
}

.card__title {
	font-size: 1.1rem;
	margin-bottom: 4px;
}

.card__title a {
	color: var(--ink-900);
}

.card__title a:hover {
	color: var(--brand-600);
}

.card__desc {
	font-size: 0.9rem;
	color: var(--gray-600);
	margin-bottom: 12px;
}

.card__link {
	font-size: 0.9rem;
	font-weight: 500;
}

/* ==========================================================================
   6. Utility
   ========================================================================== */
.sr-only {
	position: absolute;
	width: 1px;
	height: 1px;
	padding: 0;
	margin: -1px;
	overflow: hidden;
	clip: rect(0, 0, 0, 0);
	white-space: nowrap;
	border: 0;
}

.grid {
	display: grid;
	gap: 20px;
}

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

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

.grid--5 {
	grid-template-columns: repeat(5, 1fr);
}

@media (max-width: 1024px) {
	.grid--4, .grid--5 { grid-template-columns: repeat(2, 1fr); }
	.grid--3 { grid-template-columns: repeat(2, 1fr); }
	.grid--divider.grid--3 > *:nth-child(2n+1)::before,
	.grid--divider.grid--4 > *:nth-child(2n+1)::before,
	.grid--divider.grid--5 > *:nth-child(2n+1)::before {
		display: none;
	}
	.flow { flex-wrap: wrap; }
	.flow__step { flex: 1 1 30%; }
	.flow__arrow { display: none; }
}

@media (max-width: 640px) {
	.grid--4, .grid--3, .grid--5 { grid-template-columns: 1fr; }
	h1 { font-size: 1.75rem; }
	h2 { font-size: 1.4rem; }
	.section { padding: 48px 0; }
	.section.band { padding-top: 24px; }
	.band__panel--overlay { margin-bottom: 24px; }
	.flow__step { flex: 1 1 45%; }
	.grid--divider > * + *::before {
		display: none;
	}
	.grid--divider > * + * {
		border-top: 1px solid var(--gray-200);
		padding-top: 24px;
	}
}

/* ==========================================================================
   7. Header & Navigation
   ========================================================================== */
.site-header {
	position: sticky;
	top: 0;
	z-index: 100;
	background: var(--white);
	border-bottom: var(--border);
}

.site-header__inner {
	display: flex;
	align-items: center;
	gap: 24px;
	min-height: 68px;
}

.site-logo__text {
	color: var(--ink-900);
	font-family: var(--font-heading);
	font-weight: 500;
	font-size: 1.3rem;
}

.site-logo__text:hover {
	color: var(--brand-600);
	text-decoration: none;
}

.site-logo__img {
	display: block;
	height: 56px;
	width: auto;
}

.site-logo:hover {
	text-decoration: none;
}

.site-nav {
	margin-left: auto;
}

.site-nav__list {
	display: flex;
	align-items: center;
	gap: 34px;
	list-style: none;
	margin: 0;
	padding: 0;
}

.site-nav__item {
	position: relative;
}

.site-nav__item a {
	color: var(--gray-900);
	font-size: 1.05rem;
	font-weight: 700;
}

.site-nav__item a:hover {
	color: var(--brand-600);
	text-decoration: none;
}

/* 顶层导航链接 hover：文字下方显示横线（子菜单不受影响） */
.site-nav__item > a:hover {
	text-decoration: underline;
	text-underline-offset: 9px;
	text-decoration-thickness: 2px;
}

/* Products 下拉子菜单（同时兼容 WordPress 菜单 .sub-menu 与兜底 .site-nav__submenu） */
.site-nav__submenu,
.site-nav .sub-menu {
	position: absolute;
	top: 100%;
	left: 50%;
	transform: translateX(-50%);
	min-width: 230px;
	margin: 12px 0 0;
	padding: 8px 0;
	list-style: none;
	background: #fff;
	border: 1px solid var(--border, #e5e7eb);
	border-radius: 12px;
	box-shadow: 0 12px 32px rgba(15, 23, 42, 0.12);
	opacity: 0;
	visibility: hidden;
	transition: opacity 0.18s ease, visibility 0.18s ease, transform 0.18s ease;
	transform: translateX(-50%) translateY(-4px);
	z-index: 20;
}

.site-nav__item:hover .site-nav__submenu,
.site-nav__item:hover > .sub-menu,
.site-nav__item:focus-within .site-nav__submenu,
.site-nav__item:focus-within > .sub-menu {
	opacity: 1;
	visibility: visible;
	transform: translateX(-50%) translateY(0);
}

.site-nav__submenu li,
.site-nav .sub-menu li {
	margin: 0;
}

.site-nav__submenu a,
.site-nav .sub-menu a {
	display: block;
	padding: 10px 18px;
	font-size: 0.9rem;
	font-weight: 500;
	white-space: nowrap;
}

.site-nav__submenu a:hover,
.site-nav .sub-menu a:hover {
	background: var(--brand-50, #f0f6ff);
}

.site-header__cta {
	margin-left: 8px;
}

.menu-toggle {
	display: none;
	flex-direction: column;
	gap: 5px;
	background: none;
	border: none;
	cursor: pointer;
	padding: 8px;
}

.menu-toggle__bar {
	display: block;
	width: 22px;
	height: 2px;
	background: var(--ink-900);
	border-radius: 1px;
}

/* ==========================================================================
   8. Hero
   ========================================================================== */
.hero {
	position: relative;
	display: flex;
	align-items: center;
	min-height: 88vh;
	padding: 140px 0 96px;
	background:
		linear-gradient(to right, rgba(6, 22, 32, 0.92) 0%, rgba(6, 22, 32, 0.62) 40%, rgba(6, 22, 32, 0.25) 70%, transparent 100%),
		url(assets/img/0.homepage/banner1.webp) center / cover no-repeat;
}

.hero__inner {
	width: 100%;
}

.hero__content {
	max-width: 720px;
}

.hero--home .hero__content,
.hero--home .hero__title {
	max-width: 900px;
}

.hero__label {
	display: none;
	color: var(--brand-500);
	font-family: var(--font-heading);
	font-size: 1.25rem;
	font-weight: 500;
	text-transform: uppercase;
	letter-spacing: 0.04em;
	margin: 0 0 16px;
}

.hero__title {
	color: #ffffff;
	font-size: 3rem;
	font-weight: 700;
	line-height: 1.12;
	max-width: 680px;
	margin-bottom: 20px;
}

.hero__lead {
	color: #cbd5e1;
	font-size: 1.15rem;
	max-width: 600px;
	margin-bottom: 32px;
}

.hero__actions {
	display: flex;
	gap: 12px;
	flex-wrap: wrap;
	margin-bottom: 36px;
}

.hero__facts {
	display: flex;
	flex-wrap: wrap;
	gap: 20px;
	list-style: none;
	margin: 0;
	padding: 0;
	color: #cbd5e1;
	font-size: 0.9rem;
}

.hero__facts li {
	display: flex;
	align-items: center;
	gap: 6px;
}

.hero__facts li::before {
	content: "✓";
	color: var(--brand-500);
	font-weight: 500;
}

/* ==========================================================================
   9. Footer
   ========================================================================== */
.site-footer { background: var(--ink-900); color: #94a3b8; }
.site-footer__inner { display: grid; grid-template-columns: minmax(0,1.6fr) minmax(0,.9fr) minmax(0,1.1fr) minmax(0,1.4fr); gap: 32px; padding-top: 48px; padding-bottom: 48px; }
.site-footer__inner > * { min-width: 0; }
.site-footer__logo { color: var(--white); font-family: var(--font-heading); font-weight: 600; font-size: 1.3rem; margin: 0 0 10px; }
.site-footer__tagline { font-size: .9rem; line-height: 1.6; max-width: 340px; margin: 0; }
.site-footer__title { color: var(--white); font-weight: 700; font-size: .85rem; line-height: 20px; text-transform: uppercase; letter-spacing: .02em; margin: 0 0 22px; }
.site-footer__list { list-style: none; display: grid; gap: 12px; margin: 0; padding: 0; }
.site-footer__list li { margin: 0; line-height: 20px; }
.site-footer__list a, .site-footer__email, .site-footer__legal a { color: #94a3b8; font-size: .9rem; line-height: 20px; }
.site-footer__list a { display: block; }
.site-footer__more { display: inline-flex; align-items: center; color: var(--cta); font-size: .9rem; font-weight: 600; line-height: 20px; margin-top: 12px; }
.site-footer__description { font-size: .9rem; line-height: 1.6; margin: 0 0 20px; max-width: 290px; }
.site-footer__cta { width: fit-content; max-width: 100%; min-height: 46px; padding: 12px 16px; font-size: .85rem; line-height: 1.4; text-align: left; }
.site-footer__email { display: block; width: fit-content; margin-top: 16px; }
.site-footer a:not(.site-footer__cta):hover { color: var(--white); text-decoration: none; }
.site-footer a:focus-visible { outline: 2px solid var(--cta); outline-offset: 4px; border-radius: 2px; }
.site-footer .site-footer__cta:focus-visible { outline-color: var(--white); }
.site-footer__bottom { border-top: .5px solid rgba(255,255,255,.12); font-size: .85rem; }
.site-footer__bottom-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 60px; padding-top: 12px; padding-bottom: 12px; }
.site-footer__bottom p { margin: 0; }
.site-footer__legal { display: flex; flex-wrap: wrap; gap: 20px; }
.site-footer__privacy { padding-inline-end: 48px; }
.site-footer__privacy a { display: inline; text-decoration: underline; }
@media (max-width: 1100px) {
  .site-footer__inner { grid-template-columns: minmax(0,1fr) minmax(0,1fr); gap: 36px 48px; }
  .site-footer__brand { order: 0; }
  .site-footer__contact { order: 1; }
  .site-footer__quick { order: 2; }
  .site-footer__equipment { order: 3; }
}
@media (max-width: 640px) {
  .site-footer__inner { grid-template-columns: minmax(0,1fr); padding-top: 36px; padding-bottom: 32px; gap: 30px; }
  .site-footer__title { margin-bottom: 14px; }
  .site-footer__list { gap: 0; }
  .site-footer__list a, .site-footer__more, .site-footer__email, .site-footer__legal a { display: flex; align-items: center; min-height: 44px; }
  .site-footer__more { margin-top: 4px; }
  .site-footer__email { margin-top: 8px; }
  .site-footer__bottom-inner { align-items: flex-start; flex-direction: column; gap: 4px; justify-content: center; padding-bottom: 76px; }
  .site-footer__legal { gap: 4px 20px; }
  .site-footer__privacy { padding-inline-end: 0; }
  .site-footer__legal .site-footer__privacy a { display: inline; min-height: 0; }
}

/* ==========================================================================
   10. Responsive
   ========================================================================== */
@media (max-width: 900px) {
	.menu-toggle {
		display: flex;
		margin-left: auto;
	}

	.site-nav {
		display: none;
		position: absolute;
		top: 68px;
		left: 0;
		right: 0;
		background: var(--white);
		border-bottom: var(--border);
	}

	.site-nav.is-open {
		display: block;
	}

	.site-nav__list {
		flex-direction: column;
		align-items: stretch;
		gap: 0;
		padding: 8px 20px 16px;
	}

	.site-nav__item a {
		display: block;
		padding: 12px 0;
		border-bottom: var(--border);
	}

	/* 移动端：下拉改为静态展开 */
	.site-nav__submenu,
	.site-nav .sub-menu {
		position: static;
		transform: none;
		opacity: 1;
		visibility: visible;
		min-width: 0;
		margin: 0 0 0 16px;
		padding: 0;
		border: 0;
		border-radius: 0;
		box-shadow: none;
		background: transparent;
	}

	.site-nav__submenu li,
	.site-nav .sub-menu li {
		border-bottom: var(--border);
	}

	.site-header__cta {
		display: none;
	}


	.hero {
		min-height: 0;
		padding: 96px 0 64px;
	}

	.hero__title {
		font-size: 2.2rem;
	}
}


/* ==========================================================================
   11. Homepage sections
   ========================================================================== */
.grid--2 {
	grid-template-columns: repeat(2, 1fr);
}

.media-ph {
	display: flex;
	align-items: center;
	justify-content: center;
	height: 180px;
	border-radius: var(--radius-md);
	background: var(--brand-50);
	border: var(--border);
	color: #94a3b8;
	font-size: 0.85rem;
}

.media-ph--sm {
	height: 90px;
}

/* ---- 照片质感占位图（模拟真实图片） ---- */
.ph {
	position: relative;
	display: flex;
	align-items: flex-end;
	justify-content: flex-start;
	padding: 18px;
	border-radius: var(--radius-md);
	min-height: 200px;
	overflow: hidden;
	background-size: cover;
	background-position: center;
}

.ph > span {
	position: relative;
	z-index: 2;
	font-family: var(--font-heading);
	font-size: 0.68rem;
	font-weight: 500;
	letter-spacing: 0.05em;
	text-transform: uppercase;
	color: rgba(255, 255, 255, 0.95);
	background: rgba(10, 42, 58, 0.38);
	padding: 5px 11px;
	border-radius: 999px;
}

.ph::before {
	content: "";
	position: absolute;
	right: -10%;
	top: 12%;
	width: 58%;
	aspect-ratio: 1;
	border-radius: 50%;
	border: 2px solid rgba(255, 255, 255, 0.28);
}

.ph::after {
	content: "";
	position: absolute;
	left: 0;
	right: 0;
	bottom: 0;
	height: 42%;
	background: repeating-linear-gradient(
		to bottom,
		rgba(255, 255, 255, 0.1) 0 2px,
		transparent 2px 9px
	);
}

.ph--sm {
	min-height: 96px;
}

.ph--hero {
	background:
		radial-gradient(circle at 72% 24%, rgba(255, 255, 255, 0.22), transparent 42%),
		linear-gradient(140deg, #06b6d4 0%, #0891b2 38%, #0e7490 72%, #0a2a3a 100%);
	min-height: 400px;
}

.ph--factory {
	background:
		radial-gradient(circle at 20% 18%, rgba(255, 255, 255, 0.14), transparent 45%),
		linear-gradient(150deg, #16444e 0%, #0a2a3a 80%, #06232f 100%);
}

.ph--product {
	background:
		radial-gradient(circle at 68% 28%, rgba(255, 255, 255, 0.7), transparent 50%),
		linear-gradient(150deg, #ecfeff 0%, #a5f3fc 55%, #67e8f9 100%);
	height: 380px;
}

.ph--product > span {
	color: var(--ink-700);
	background: rgba(255, 255, 255, 0.78);
}

.ph--product::before {
	border-color: rgba(8, 145, 178, 0.35);
}

/* 7 大设备模块配色 */
.ph--tank {
	background: linear-gradient(150deg, #06b6d4 0%, #0891b2 48%, #16444e 100%);
}
.ph--drum {
	background: linear-gradient(150deg, #0e7490 0%, #0a2a3a 100%);
}
.ph--skimmer {
	background: linear-gradient(150deg, #22d3ee 0%, #06b6d4 55%, #0e7490 100%);
}
.ph--degassing {
	background: linear-gradient(150deg, #67e8f9 0%, #0891b2 60%, #16444e 100%);
}
.ph--mbbr {
	background: linear-gradient(150deg, #2dd4bf 0%, #0e7490 60%, #0a2a3a 100%);
}
.ph--uv {
	background: linear-gradient(150deg, #38bdf8 0%, #0284c7 55%, #0c4a6e 100%);
}
.ph--uv-sterilizer {
	background: linear-gradient(150deg, #818cf8 0%, #6366f1 50%, #4338ca 100%);
}
.ph--oxygen {
	background: linear-gradient(150deg, #7dd3fc 0%, #0891b2 60%, #16444e 100%);
}

/* 认证证书占位图（浅色纸面质感） */
.ph--cert {
	background:
		radial-gradient(circle at 20% 20%, rgba(6, 182, 212, 0.12), transparent 45%),
		linear-gradient(160deg, #f8fafb 0%, #eef4f6 60%, #e2ecef 100%);
	border: var(--border);
}
.ph--cert > span {
	color: var(--ink-700);
	background: rgba(255, 255, 255, 0.85);
}
.ph--cert::before {
	border-color: rgba(8, 145, 178, 0.25);
}

/* 客户来访照片（各国） */
.ph--visit-photo {
	background-size: cover;
}
.ph--norway     { background: linear-gradient(150deg, #334155 0%, #0f172a 100%); }
.ph--saudi      { background: linear-gradient(150deg, #f59e0b 0%, #b45309 100%); }
.ph--vietnam    { background: linear-gradient(150deg, #16a34a 0%, #14532d 100%); }
.ph--egypt      { background: linear-gradient(150deg, #eab308 0%, #a16207 100%); }
.ph--india      { background: linear-gradient(150deg, #fb923c 0%, #c2410c 100%); }
.ph--indonesia  { background: linear-gradient(150deg, #14b8a6 0%, #115e59 100%); }
.ph--turkey     { background: linear-gradient(150deg, #ef4444 0%, #7f1d1d 100%); }
.ph--uae        { background: linear-gradient(150deg, #d97706 0%, #92400e 100%); }
.ph--chile      { background: linear-gradient(150deg, #0ea5e9 0%, #075985 100%); }
.ph--nigeria    { background: linear-gradient(150deg, #22c55e 0%, #166534 100%); }

/* 项目图片（各国项目现场） */
.ph--project-saudi   { background: linear-gradient(150deg, #f59e0b 0%, #0a2a3a 100%); }
.ph--project-vietnam { background: linear-gradient(150deg, #16a34a 0%, #0a2a3a 100%); }
.ph--project-china   { background: linear-gradient(150deg, #06b6d4 0%, #0a2a3a 100%); }
.ph--project-norway    { background: linear-gradient(150deg, #334155 0%, #0a2a3a 100%); }
.ph--project-egypt     { background: linear-gradient(150deg, #eab308 0%, #0a2a3a 100%); }
.ph--project-indonesia { background: linear-gradient(150deg, #14b8a6 0%, #0a2a3a 100%); }
.ph--project-turkey    { background: linear-gradient(150deg, #ef4444 0%, #0a2a3a 100%); }
.ph--project-uae       { background: linear-gradient(150deg, #d97706 0%, #0a2a3a 100%); }
.ph--project-nigeria   { background: linear-gradient(150deg, #22c55e 0%, #0a2a3a 100%); }

.ph--project {
	background:
		radial-gradient(circle at 28% 22%, rgba(255, 255, 255, 0.2), transparent 45%),
		linear-gradient(150deg, #06b6d4 0%, #0891b2 42%, #16444e 100%);
	height: 380px;
}

.ph--freshwater {
	background: linear-gradient(150deg, #06b6d4 0%, #0891b2 60%, #0e7490 100%);
}

.ph--marine {
	background: linear-gradient(150deg, #0e7490 0%, #0a2a3a 100%);
}

.ph--shrimp {
	background: linear-gradient(150deg, #f59e0b 0%, #d97706 60%, #b45309 100%);
}

.ph--hatchery {
	background: linear-gradient(150deg, #22c55e 0%, #0891b2 100%);
}

/* ---- 流程图模块占位图：居中序号 ---- */
.ph--flow {
	min-height: 0;
	padding: 0;
	align-items: center;
	justify-content: center;
}

.ph--flow::before,
.ph--flow::after {
	display: none;
}

.ph--fish-tank {
	background: linear-gradient(150deg, #06b6d4 0%, #0891b2 55%, #0e7490 100%);
}

.ph--drum-filter {
	background: linear-gradient(150deg, #22c55e 0%, #0891b2 100%);
}

.ph--disinfection {
	background: linear-gradient(150deg, #8b5cf6 0%, #0e7490 100%);
}

.ph--oxygenation {
	background: linear-gradient(150deg, #0e7490 0%, #0a2a3a 100%);
}

.ph--automation {
	background: linear-gradient(150deg, #334155 0%, #0f172a 100%);
}

.ph--modular {
	background: linear-gradient(150deg, #f59e0b 0%, #d97706 100%);
}

.ph--visit {
	background:
		radial-gradient(circle at 25% 25%, rgba(255, 255, 255, 0.16), transparent 45%),
		linear-gradient(150deg, #334155 0%, #0f172a 100%);
}

.ph--avatar {
	min-height: 0;
	width: 44px;
	height: 44px;
	border-radius: 50%;
	padding: 0;
	background: linear-gradient(150deg, #0891b2 0%, #0a2a3a 100%);
	flex: 0 0 auto;
}

.ph--avatar::before,
.ph--avatar::after {
	display: none;
}

.card--quote .ph--avatar {
	margin-bottom: 14px;
}

.card--quote .testimonial-avatar {
	display: block;
	width: 88px;
	height: 88px;
	object-fit: cover;
	border-radius: 50%;
	margin-bottom: 18px;
}

.testimonial-image-note {
	font-size: 0.75rem;
	color: var(--gray-600);
	margin: -4px 0 20px;
}

.card--large {
	padding: 24px;
}

.stats {
	border-bottom: var(--border);
}

.stats__grid {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 24px;
	padding: 40px 0;
}

.stat {
	text-align: center;
}

.stat__num {
	display: block;
	font-family: var(--font-heading);
	font-size: 2rem;
	font-weight: 500;
	color: var(--brand-600);
}

.stat__label {
	font-size: 0.9rem;
	color: var(--gray-600);
}

.flow {
	display: flex;
	align-items: flex-start;
	gap: 12px;
	margin-bottom: 20px;
}

.flow__step {
	flex: 1 1 160px;
	min-width: 0;
	display: flex;
	flex-direction: column;
}

.flow__img {
	position: relative;
	aspect-ratio: 4 / 3;
	min-height: 0;
	padding: 0;
	align-items: center;
	justify-content: center;
	border-radius: var(--radius-md);
	margin-bottom: 12px;
	overflow: hidden;
}

.flow__img .flow__icon {
	position: absolute;
	inset: 0;
	display: flex;
	align-items: center;
	justify-content: center;
	z-index: 2;
	font-family: var(--font-heading);
	font-size: 2rem;
	font-weight: 500;
	letter-spacing: 0;
	text-transform: none;
	color: rgba(255, 255, 255, 0.92);
	background: none;
	padding: 0;
	border-radius: 0;
}

.flow__name {
	font-family: var(--font-heading);
	font-size: 1rem;
	font-weight: 500;
	line-height: 1.3;
	color: var(--ink-900);
}

.flow__fn {
	font-size: 0.8rem;
	line-height: 1.5;
	color: var(--gray-600);
	margin-top: 4px;
}

.flow__arrow {
	flex: 0 0 auto;
	color: var(--brand-600);
	font-size: 1.3rem;
	line-height: 1;
	margin-top: 54px;
}

.flow__note {
	color: var(--gray-600);
	font-size: 0.85rem;
}

.factory {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 40px;
	align-items: center;
}

.factory__list {
	margin: 0 0 24px;
	padding-left: 1.25em;
	color: var(--gray-900);
}

.factory__photo {
	display: block;
	width: 100%;
	height: 260px;
	object-fit: cover;
}

.factory__visits {
	display: flex;
	gap: 12px;
	margin-top: 12px;
}

.factory__visits img {
	flex: 1;
	min-width: 0;
	height: 96px;
	object-fit: cover;
}

.factory__caption {
	font-size: 0.85rem;
	color: var(--gray-600);
	margin-top: 12px;
}

/* 客户来访：无缝滚动画廊 */
.marquee {
	overflow: hidden;
	width: 100%;
	max-width: var(--container);
	margin: 8px auto 0;
	padding-left: 20px;
	padding-right: 20px;
}

.marquee__track {
	display: flex;
	width: max-content;
	animation: marquee-scroll 40s linear infinite;
}

.marquee:hover .marquee__track {
	animation-play-state: paused;
}

.marquee__item {
	flex: 0 0 auto;
	width: 360px;
	margin: 0 16px 0 0;
}

.marquee__item img {
	display: block;
	width: 100%;
	height: 270px;
	object-fit: cover;
}

@keyframes marquee-scroll {
	from { transform: translateX(0); }
	to { transform: translateX(-50%); }
}

.certifications {
	text-align: center;
}

.certifications__banner {
	max-width: 860px;
	height: 220px;
	margin: 0 auto 24px;
}

.certifications .btn {
	margin-top: 8px;
}

.card__meta {
	display: flex;
	gap: 16px;
	font-size: 0.85rem;
	color: var(--brand-600);
	margin-bottom: 12px;
}

.card__quote {
	font-size: 0.95rem;
	color: var(--gray-900);
	font-style: italic;
}

.card__author {
	font-size: 0.85rem;
	color: var(--gray-600);
	margin: 0;
}

.faq .section__label,
.faq .section__title {
	text-align: center;
}

.site-main section:has(.faq__list) > .container > .section__title { text-align: center; }
.site-main section:has(.faq__list) > .container > .section__label {
	display: block;
	margin-bottom: 12px;
	font-size: .78rem;
	line-height: 1.3;
	font-weight: 700;
	letter-spacing: .13em;
	text-align: center;
}

.faq__list {
	display: grid;
	grid-template-columns: minmax(0, 1fr);
	align-items: start;
	border-top: 1px solid var(--gray-200);
	counter-reset: faq;
}

.faq__col {
	display: contents;
}

.faq__item {
	border-bottom: 1px solid var(--gray-200);
	counter-increment: faq;
}

.faq__item summary {
	display: flex;
	align-items: center;
	gap: 12px;
	padding: 18px 0;
	cursor: pointer;
	list-style: none;
	font-family: var(--font-heading);
	font-size: 1rem;
	font-weight: 600;
	color: var(--ink-900);
}

.faq__item summary::-webkit-details-marker {
	display: none;
}

.faq__item summary::before {
	content: counter(faq, decimal-leading-zero);
	color: var(--brand-600);
	font-weight: 600;
	letter-spacing: 0.02em;
	flex: 0 0 24px;
	white-space: nowrap;
	font-variant-numeric: tabular-nums;
}

.faq__item summary::after {
	content: '';
	width: 18px;
	height: 18px;
	margin-left: auto;
	flex: 0 0 18px;
	background: var(--ink-700);
	-webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M16.7 3.3L10 10 3.3 3.4 0 6.7l10 10v-.1l10-9.9z'/%3E%3C/svg%3E") center / contain no-repeat;
	mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M16.7 3.3L10 10 3.3 3.4 0 6.7l10 10v-.1l10-9.9z'/%3E%3C/svg%3E") center / contain no-repeat;
	transition: transform 0.2s ease;
}

.faq__num,
.faq__arrow {
	display: none;
}

.faq__q,
.article-faq summary h3 {
	flex: 1;
}

.article-faq summary h3 {
	margin: 0;
	font: inherit;
	color: inherit;
}

.faq__item[open] summary::after {
	transform: rotate(180deg);
}

.faq__item summary:hover,
.faq__item summary:hover .faq__q {
	color: var(--brand-600);
}

.faq__item > p,
.faq__item > .faq__a {
	margin: 0;
	padding: 0 0 18px;
	color: var(--gray-600);
	line-height: 1.6;
}

.faq__item .faq__a p {
	padding: 0;
	margin: 0 0 12px;
}

.faq__item .faq__a p:last-child { margin-bottom: 0; }
.faq__item summary:focus-visible { outline: 2px solid var(--brand-600); outline-offset: 3px; }
.article-faq { margin: 28px 0 36px; }
.article-faq .faq__list { margin: 0; }
.article-faq .faq__item summary { font-size: 1rem; }
.article-faq .faq__item .faq__a { padding-bottom: 20px; }

@media (max-width: 640px) {
	.faq__item summary { align-items: flex-start; }
	.faq__item summary::after { margin-top: 3px; }
}

.hero__btn-outline {
	border-color: rgba(255, 255, 255, 0.6);
	color: #fff;
}

.hero__btn-outline:hover {
	background: rgba(255, 255, 255, 0.1);
	color: #fff;
}

.cta {
	background: transparent;
	color: var(--white);
	padding: 72px 0;
}

.cta__inner {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 40px;
	align-items: center;
	position: relative;
	background-size: cover;
	background-position: center;
	background-repeat: no-repeat;
	overflow: hidden;
	padding: 48px;
}

.cta__inner::before {
	content: "";
	position: absolute;
	inset: 0;
	background: rgba(5, 24, 33, 0.55);
	z-index: 0;
}
.cta__text {
	position: relative;
	z-index: 1;
}

.cta__title {
	font-size: 2rem;
	color: var(--white);
}

.cta__lead {
	color: #cbd5e1;
}


.form-row--full {
	grid-column: 1 / -1;
}


/* ==========================================================================
   12. Responsive (homepage)
   ========================================================================== */
@media (max-width: 900px) {
	.factory {
		grid-template-columns: 1fr;
	}

	.flow {
		flex-direction: column;
		align-items: stretch;
	}

	.flow__arrow {
		transform: rotate(90deg);
		text-align: center;
	}

	.cta__inner {
		grid-template-columns: 1fr;
		padding: 32px;
	}
}

@media (max-width: 640px) {


	.grid--2 {
		grid-template-columns: 1fr;
	}

	.grid--divider > * + * {
		border-left: none;
		border-top: 1px solid var(--gray-200);
		padding-left: 0;
		padding-top: 32px;
	}

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

	.ph--project,
	.ph--product,
	img.card__media {
		height: auto;
		aspect-ratio: 16 / 10;
	}

}

/* ==========================================================================
   13. Inner pages（内页样板）
   ========================================================================== */

/* 面包屑 */
.breadcrumb {
	padding: 20px;
	font-size: 0.85rem;
	color: var(--gray-600);
}

.breadcrumb a {
	color: var(--gray-600);
}

.breadcrumb a:hover {
	color: var(--brand-600);
}

.breadcrumb span[aria-hidden] {
	margin: 0 8px;
	color: var(--gray-200);
}

/* 产品 / 案例 Hero */
.p-hero {
	padding: 48px 0 64px;
	border-bottom: var(--border);
}

.p-hero__inner {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 40px;
	align-items: start;
}

.p-hero__ph {
	height: 320px;
}

.p-hero__thumbs {
	display: flex;
	gap: 12px;
	margin-top: 12px;
}

.p-hero__thumbs .media-ph--sm {
	flex: 1;
}

.p-hero__title {
	font-size: 2.2rem;
	margin-bottom: 16px;
}

.p-hero__lead {
	color: var(--gray-600);
	font-size: 1.05rem;
	margin-bottom: 20px;
}

.p-hero__facts {
	display: flex;
	flex-wrap: wrap;
	gap: 16px;
	list-style: none;
	margin: 0 0 24px;
	padding: 0;
	font-size: 0.9rem;
	color: var(--gray-900);
}

.p-hero__facts li {
	display: flex;
	align-items: center;
	gap: 6px;
}

.p-hero__facts li::before {
	content: "✓";
	color: var(--brand-600);
	font-weight: 500;
}

.p-hero__actions {
	display: flex;
	gap: 12px;
	flex-wrap: wrap;
}

/* 参数表 */
.spec-table {
	border: var(--border);
	border-radius: var(--radius-lg);
	overflow: hidden;
	margin-bottom: 20px;
	background: var(--white);
}

.spec-table__row {
	display: grid;
	grid-template-columns: 240px 1fr;
	border-bottom: var(--border);
}

.spec-table__row:last-child {
	border-bottom: none;
}

.spec-table__row--3 {
	grid-template-columns: 240px 1fr 1fr;
}

.spec-table__key {
	padding: 16px 20px;
	font-family: var(--font-heading);
	font-weight: 500;
	font-size: 0.9rem;
	color: var(--ink-900);
	background: var(--gray-50);
	border-right: var(--border);
}

.spec-table__val {
	padding: 16px 20px;
	font-size: 0.9rem;
	color: var(--gray-900);
}

/* 项目成果数据 */
.project__facts {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 20px;
	margin-bottom: 24px;
}

.project__facts .stat {
	text-align: left;
	border-left: 2px solid var(--brand-600);
	padding-left: 14px;
}

.project__facts .stat__num {
	font-size: 1.4rem;
}

/* 分类 chips */
.chips {
	display: flex;
	flex-wrap: wrap;
	gap: 10px;
}

.chip {
	display: inline-flex;
	align-items: center;
	padding: 8px 16px;
	border: var(--border);
	border-radius: 999px;
	font-size: 0.85rem;
	color: var(--gray-900);
	background: var(--white);
	cursor: pointer;
	transition: background-color 0.2s, color 0.2s, border-color 0.2s;
}

.chip:hover {
	border-color: var(--brand-600);
	color: var(--brand-600);
}

.chip--active {
	background: var(--brand-600);
	border-color: var(--brand-600);
	color: var(--white);
}

.chip--tag {
	padding: 3px 10px;
	font-size: 0.7rem;
	color: var(--brand-600);
	background: var(--brand-50);
	border-color: transparent;
	margin-bottom: 8px;
	cursor: default;
}

.chip--tag:hover {
	color: var(--brand-600);
	border-color: transparent;
}

/* 知识中心文章 */
.article-layout {
	display: grid;
	grid-template-columns: 1fr 300px;
	gap: 40px;
	padding-top: 8px;
	padding-bottom: 64px;
}

.article__title {
	font-size: 2rem;
	margin-bottom: 12px;
}

.article__meta {
	display: flex;
	gap: 16px;
	font-size: 0.85rem;
	color: var(--gray-600);
	margin-bottom: 20px;
}

.article__cover {
	height: 280px;
	margin-bottom: 24px;
}

.article__body h2 {
	margin-top: 1.5em;
	font-weight: 700;
}

/* 博客正文：通用表格 */
.article__body table {
	width: 100%;
	border-collapse: collapse;
	font-size: 0.9rem;
	margin: 1.25em 0;
	background: var(--white);
}

.article__body table thead th {
	background: var(--ink-900);
	color: var(--white);
	font-weight: 600;
	text-align: left;
	padding: 12px 14px;
	border: 1px solid var(--gray-200);
}

.article__body table tbody th {
	background: var(--brand-50);
	color: var(--gray-900);
	font-weight: 600;
	text-align: left;
	padding: 12px 14px;
	border: 1px solid var(--gray-200);
	white-space: nowrap;
}

.article__body table td {
	padding: 12px 14px;
	border: 1px solid var(--gray-200);
	text-align: left;
	vertical-align: top;
}

.article__body table tbody tr:nth-child(even) {
	background: var(--gray-50);
}

/* 博客正文：引用块 */
.article__body blockquote {
	margin: 1.25em 0;
	padding: 16px 20px;
	background: var(--brand-50);
	border-left: 4px solid var(--brand-500);
	border-radius: var(--radius-md);
	color: var(--gray-900);
}

.article__body blockquote p {
	margin: 0 0 0.5em;
}

.article__body blockquote p:last-child {
	margin-bottom: 0;
}

.article-sidebar {
	display: flex;
	flex-direction: column;
	gap: 20px;
}

.article-sidebar__link {
	display: block;
	padding: 10px 0;
	font-size: 0.9rem;
	border-bottom: var(--border);
}

.article-sidebar__link:last-child {
	border-bottom: none;
}

.card--cta-sidebar {
	background: var(--ink-900);
	color: var(--white);
	border-color: transparent;
}

.card--cta-sidebar .card__title {
	color: var(--white);
}

.card--cta-sidebar .card__desc {
	color: #94a3b8;
}

.card--cta-sidebar .btn {
	margin-top: 8px;
	padding-inline: 10px;
	font-size: 0.85rem;
	white-space: nowrap;
}

/* 博客：标签容器 */
.article__tags {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
	margin-bottom: 4px;
}
.article__tags .chip--tag {
	margin-bottom: 0;
}

/* 博客：封面图（含真实图片填充） */
.article__cover {
	overflow: hidden;
}
.article__cover-img {
	display: block;
	width: 100%;
	height: 100%;
	object-fit: cover;
}

/* 博客：文章目录 */
.article-toc {
	margin: 0 0 28px;
	padding: 20px 24px;
	background: var(--gray-50);
	border: 1px solid var(--border);
	border-radius: var(--radius-md);
}
.article-toc__title {
	margin: 0 0 8px;
	font-size: 0.9rem;
	font-weight: 600;
	color: var(--ink-900);
}
.article-toc__list {
	margin: 0;
	padding: 0;
	list-style: none;
}
.article-toc__item > a {
	display: block;
	padding: 1px 0;
	font-size: 0.9rem;
	color: var(--ink-900);
	font-weight: 500;
	text-decoration: none;
}
.article-toc__item > a:hover {
	color: var(--brand-600);
}
.article-toc__num {
	display: inline-block;
	min-width: 1.6em;
	color: var(--brand-600);
	font-weight: 600;
}
.article__body h2,
.article__body h3 {
	scroll-margin-top: 96px;
}

/* 博客：作者卡片 */
.author-card {
	display: flex;
	align-items: flex-start;
	gap: 16px;
	margin: 28px 0;
	padding: 20px 22px;
	background: var(--brand-50);
	border: 1px solid var(--border);
	border-radius: var(--radius-lg);
}
.author-card__avatar {
	flex: none;
	display: flex;
	align-items: center;
	justify-content: center;
	width: 56px;
	height: 56px;
	border-radius: 50%;
	background: var(--brand-600);
	color: #fff;
	font-family: var(--font-heading);
	font-size: 1rem;
	font-weight: 700;
	letter-spacing: .02em;
	text-decoration: none;
	overflow: hidden;
}
.author-card__avatar img {
	width: 100%;
	height: 100%;
	object-fit: cover;
}
.author-card__body {
	flex: 1;
	min-width: 0;
}
.author-card__bio {
	margin: 0 0 14px;
	font-size: .95rem;
	line-height: 1.65;
	color: var(--gray-600);
}
.author-card__bio strong {
	color: var(--ink-900);
	font-weight: 600;
}
.author-card__social {
	display: flex;
	gap: 8px;
	margin: 0;
	padding: 0;
	list-style: none;
}
.author-card__social a {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 34px;
	height: 34px;
	border-radius: 50%;
	background: var(--white);
	border: 1px solid var(--border);
	color: var(--gray-600);
	transition: color .2s, border-color .2s, transform .2s;
}
.author-card__social a:hover {
	color: var(--brand-600);
	border-color: var(--brand-600);
	transform: translateY(-1px);
}
.author-card__social svg {
	width: 16px;
	height: 16px;
	fill: currentColor;
}

/* 博客：上一篇 / 下一篇 */
.post-nav {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 20px;
	margin-top: 48px;
	padding-top: 24px;
	border-top: var(--border);
}
.post-nav > :only-child {
	grid-column: 1 / -1;
}
.post-nav a {
	display: block;
	padding: 16px 20px;
	border: var(--border);
	border-radius: var(--radius-lg);
	background: var(--white);
	transition: border-color .2s, box-shadow .2s;
}
.post-nav a:hover {
	border-color: var(--brand-600);
	box-shadow: 0 8px 24px rgba(15,23,42,.08);
	text-decoration: none;
}
.post-nav__label {
	display: block;
	font-family: var(--font-heading);
	font-size: .72rem;
	font-weight: 600;
	letter-spacing: .06em;
	text-transform: uppercase;
	color: var(--brand-600);
	margin-bottom: 6px;
}
.post-nav__title {
	display: block;
	font-weight: 600;
	color: var(--ink-900);
	line-height: 1.35;
}
.post-nav__item--next {
	text-align: right;
}

/* 博客：列表页筛选容器 */
.blog-filter {
	margin: 20px 0 32px;
}

/* 联系页 */
.contact-layout {
	display: grid;
	grid-template-columns: 1.2fr 1fr;
	gap: 40px;
	align-items: start;
}

.contact-form {
	padding: 32px;
}

.form-grid {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 12px;
}

.form-grid .form-row {
	display: block;
}

.form-grid input,
.form-grid select,
.form-grid textarea {
	width: 100%;
	padding: 12px;
	border-radius: var(--radius-md);
	border: var(--border);
	background: var(--white);
	color: var(--gray-900);
	font-family: var(--font-body);
	font-size: 0.9rem;
}

.form-grid textarea {
	min-height: 120px;
	resize: vertical;
}

.form-grid .btn {
	grid-column: 1 / -1;
	justify-self: start;
}

.contact-info {
	padding-top: 8px;
}

/* 页面内容 */
.page-content {
	max-width: 840px;
}

.page-content h2 {
	margin-top: 1.5em;
}

/* 响应式 */
@media (max-width: 900px) {
	.p-hero__inner,
	.article-layout,
	.contact-layout {
		grid-template-columns: 1fr;
	}

	.project__facts {
		grid-template-columns: 1fr;
	}

	.spec-table__row,
	.spec-table__row--3 {
		grid-template-columns: 1fr;
	}

	.spec-table__key {
		border-right: none;
		border-bottom: var(--border);
	}
}

@media (max-width: 640px) {
	.p-hero__title {
		font-size: 1.6rem;
	}

	.form-grid {
		grid-template-columns: 1fr;
	}
}

/* ==========================================================================
   14. Solutions page（RAS 解决方案页）
   ========================================================================== */

/* 图文分栏（利乐 feature split） */
.split {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 48px;
	align-items: center;
}

/* 顶部对齐（Overview 等首屏简介：标题紧贴 banner 下方，与 Solutions 一致） */
.split--top {
	align-items: start;
}

/* 右图与左侧正文顶底对齐：图片高度随正文自适应（RAS Integration 等） */
.split--fill {
	align-items: stretch;
}

.split--fill .split__media img {
	height: 100%;
}

.split__media img {
	display: block;
	width: 100%;
	height: 360px;
	object-fit: cover;
}

/* Why Choose YUTANK：右侧大图 + 底部两小图，整体与左侧文字顶底平齐 */
.split--why {
	column-gap: 48px;
	row-gap: 0;
	align-items: stretch;
}

.split--why .split__head {
	grid-column: 1 / -1;
}

.split__media--stack {
	display: flex;
	flex-direction: column;
	gap: 16px; /* 大图与小图间距 16px */
	height: 500px; /* 图片列整体高度 */
	align-self: center; /* 图片列垂直居中，与左侧文字中位对齐 */
}

.split__media--stack .split__media-main {
	flex: 1 1 0;
	min-height: 0;
	width: 100%;
	height: auto; /* 覆盖固定高度，由 flex 撑满剩余空间 */
	object-fit: cover;
	display: block;
}

.split__media-thumbs {
	display: flex;
	gap: 16px; /* 两小图间距 16px */
	flex: 0 0 auto;
}

.split__media--stack .split__media-thumb {
	flex: 1 1 0;
	min-width: 0;
	height: 170px;
	object-fit: cover;
	display: block;
}

@media (max-width: 900px) {
	.split__media--stack {
		height: auto;
	}
	.split__media--stack .split__media-main {
		flex: none;
		height: 320px;
	}
}

/* 文字区域加宽到板块宽度的 3/4（What Equipment Is Needed 板块，无配图） */
.split__text--wide {
	max-width: 75%;
}

/* ✓ 好处清单（两列） */
.checklist {
	display: grid;
	grid-template-columns: repeat(2, 1fr);
	gap: 10px 32px;
	list-style: none;
	margin: 20px 0 0;
	padding: 0;
}

#psa .checklist--oxygen-package { grid-template-columns: repeat(5, minmax(0, 1fr)); }

.checklist li {
	display: flex;
	align-items: flex-start;
	gap: 10px;
	font-size: 0.95rem;
	color: var(--gray-900);
}

.checklist li::before {
	content: "✓";
	color: var(--brand-600);
	font-weight: 600;
	flex: 0 0 auto;
}

/* 编号步骤卡（工作模块 / 工程流程） */
.steps {
	display: grid;
	grid-template-columns: repeat(2, 1fr);
	gap: 20px;
}

.steps--3 {
	grid-template-columns: repeat(3, 1fr);
}

.step {
	background: var(--white);
	border: var(--border);
	border-radius: var(--radius-lg);
	padding: 24px;
}

.step__num {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 32px;
	height: 32px;
	border-radius: 50%;
	background: var(--brand-600);
	color: var(--white);
	font-family: var(--font-heading);
	font-weight: 600;
	font-size: 0.9rem;
	margin-bottom: 14px;
}

.step__title {
	font-size: 1.05rem;
	margin-bottom: 8px;
}

.step__desc {
	font-size: 0.88rem;
	color: var(--gray-600);
	margin-bottom: 12px;
}

.step ul {
	margin: 0;
	padding-left: 1.1em;
	font-size: 0.85rem;
	color: var(--gray-900);
}

.step ul li {
	margin-bottom: 4px;
}

/* 流程图占位（宽幅，用户后续替换） */
.diagram {
	display: flex;
	align-items: center;
	justify-content: center;
	min-height: 260px;
	border-radius: var(--radius-lg);
	background: radial-gradient(circle at 30% 28%, rgba(255, 255, 255, 0.14), transparent 45%),
		linear-gradient(150deg, #0891b2 0%, #0e7490 55%, #0a2a3a 100%);
	margin-bottom: 24px;
}

.diagram__label {
	font-family: var(--font-heading);
	font-size: 0.75rem;
	font-weight: 500;
	letter-spacing: 0.05em;
	text-transform: uppercase;
	color: rgba(255, 255, 255, 0.95);
	background: rgba(10, 42, 58, 0.4);
	padding: 6px 14px;
	border-radius: 999px;
}

/* 容量选项卡（3 档，上图下字 + 竖线分隔，利乐风格） */
.capacity {
	row-gap: 0;
}

.capacity__card {
	display: flex;
	flex-direction: column;
	align-items: flex-start;
}

.capacity__media {
	width: 100%;
	aspect-ratio: 4 / 3;
	object-fit: cover;
	margin-bottom: 22px;
}

/* 博客沿用 Capacity 的图片比例与无边框排版，支持多行分隔。 */
.blog-card {
	min-width: 0;
}

.blog-card__image-link {
	display: block;
	width: 100%;
}

.blog-card .capacity__media {
	display: block;
	height: auto;
	border-radius: 0;
}

.blog-card .card__link {
	margin-top: auto;
}

@media (min-width: 641px) and (max-width: 1024px) {
	.blog-grid.grid--3 {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}
	.blog-grid.grid--divider > :nth-child(n)::before {
		display: none;
	}
	.blog-grid.grid--divider > :nth-child(2n)::before {
		display: block;
	}
}

@media (max-width: 640px) {
	.blog-grid.grid--3 {
		grid-template-columns: minmax(0, 1fr);
	}
	.blog-grid.grid--divider > :nth-child(n)::before {
		display: none;
	}
}

.capacity__num {
	display: inline-block;
	font-family: var(--font-heading);
	font-size: 1.1rem;
	font-weight: 600;
	color: var(--brand-600);
	margin-bottom: 6px;
}

.capacity__name {
	font-size: 1.05rem;
	margin-bottom: 14px;
}

.capacity__list {
	list-style: none;
	margin: 0;
	padding: 0;
	font-size: 0.88rem;
	color: var(--gray-600);
}

.capacity__list li {
	padding: 6px 0;
	border-bottom: 1px dashed var(--gray-200);
}

.capacity__list li:last-child {
	border-bottom: none;
}

.capacity__note {
	margin-top: 40px;
	font-size: 0.85rem;
	color: var(--gray-600);
}

/* 工程流程：11 卡，4-4-3，上图下字 + 竖线分隔（利乐 Food categories 风格） */
.process-grid {
	row-gap: 48px;
}

.process-grid .step {
	background: none;
	border: none;
	border-radius: 0;
	padding: 0;
	display: flex;
	flex-direction: column;
	align-items: flex-start;
}

.step__media {
	width: 100%;
	aspect-ratio: 4 / 3;
	object-fit: cover;
	margin-bottom: 16px;
}

.process-grid .step__title {
	font-size: 1.02rem;
	margin-bottom: 10px;
}

.process-grid .step ul {
	padding-left: 0;
	list-style: none;
}

.process-grid .step ul li {
	padding: 4px 0;
	margin-bottom: 0;
}

/* Why YUTANK：编号理由列表 */
.reasons {
	list-style: none;
	margin: 0;
	padding: 0;
}

.reasons__item {
	display: flex;
	gap: 16px;
	padding: 20px 0;
	border-bottom: 1px solid var(--gray-200);
}

.reasons__item:last-child {
	border-bottom: none;
}

.reasons__num {
	flex: 0 0 auto;
	width: 32px;
	height: 32px;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	border-radius: 50%;
	background: var(--brand-50);
	color: var(--brand-600);
	font-family: var(--font-heading);
	font-weight: 600;
	font-size: 0.9rem;
}

.reasons__title {
	font-size: 1rem;
	margin-bottom: 4px;
}

.reasons__desc {
	font-size: 0.88rem;
	color: var(--gray-600);
	margin: 0;
}

/* 项目详情卡（Featured Projects） */
.pcard {
	background: var(--white);
	border: var(--border);
	border-radius: var(--radius-lg);
	overflow: hidden;
}

.pcard__media {
	width: 100%;
	height: 200px;
	object-fit: cover;
}

.pcard__body {
	padding: 20px;
}

.pcard__title {
	font-size: 1.05rem;
	margin-bottom: 8px;
}

.pcard__meta {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
	margin-bottom: 12px;
}

.pcard__list {
	list-style: none;
	margin: 0;
	padding: 0;
	font-size: 0.85rem;
	color: var(--gray-600);
}

.pcard__list li {
	padding: 3px 0;
}

.pcard__list li::before {
	content: "•";
	color: var(--brand-600);
	margin-right: 8px;
}

/* CTA 左侧清单（深色） */
.cta__checklist {
	list-style: none;
	margin: 20px 0 0;
	padding: 0;
	display: flex;
	flex-direction: column;
	gap: 8px;
}

.cta__checklist li {
	position: relative;
	padding-left: 24px;
	color: #cbd5e1;
	font-size: 0.95rem;
}

.cta__checklist li::before {
	content: "✓";
	position: absolute;
	left: 0;
	color: var(--brand-500);
	font-weight: 600;
}

/* 响应式 */
@media (max-width: 1024px) {
	.steps--3 {
		grid-template-columns: repeat(2, 1fr);
	}
}

@media (max-width: 900px) {
	.split {
		grid-template-columns: 1fr;
	}

	.split--fill .split__media img {
		height: 320px;
	}

	.split__text--wide {
		max-width: 100%;
	}

	.steps {
		grid-template-columns: 1fr;
	}

	.capacity {
		grid-template-columns: 1fr;
	}
}

@media (max-width: 640px) {
	.checklist {
		grid-template-columns: 1fr;
	}
	#psa .checklist--oxygen-package { grid-template-columns: 1fr; }

	.steps--3 {
		grid-template-columns: 1fr;
	}
}

/* ==========================================================================
   内页 Banner 统一标准（除首页外，所有页面 banner 一律遵循）
   ──────────────────────────────────────────────────────────────────────────
   背景图尺寸：1920 × 540（宽扁比例 webp）
   高度规则：aspect-ratio: 1920 / 540（高度 = 宽度 × 0.28125，随宽度等比）
           → 保证所有内页 banner 高度一致
   内容对齐：align-items: center（上下居中），上下 padding 80px
   背景铺满：background-size: cover; background-position: center
   移动端（≤820px）：aspect-ratio: auto，padding 64px 0（内容自适应）
   例外：首页 front-page.php 的 hero 不使用本类（仍为 88vh 大图）
   用法：<section class="hero hero--page hero--xxx">，背景图 URL 写到
        各自的 hero--xxx 规则里，尺寸/对齐统一由本类提供。
   ========================================================================== */
.hero--page {
	min-height: 0;
	aspect-ratio: 1920 / 540;
	padding: 80px 0;
	align-items: center;
	background-size: cover;
	background-position: center;
}

/* 去除末尾元素的额外下边距，让可见内容整体上下居中。 */
.hero.hero--page .hero__content > :last-child {
	margin-bottom: 0;
}

@media (max-width: 820px) {
	.hero--page {
		aspect-ratio: auto;
		padding: 64px 0;
	}
}

/* ==========================================================================
   Solutions 页 Hero（遵循内页 Banner 统一标准 .hero--page）
   ========================================================================== */
.hero.hero--solutions {
	/* RAS Solutions 页面 banner 背景图 */
	align-items: center; /* 内容区上下居中 */
	background:
		linear-gradient(to right, rgba(6, 22, 32, 0.92) 0%, rgba(6, 22, 32, 0.62) 40%, rgba(6, 22, 32, 0.25) 70%, transparent 100%),
		url('assets/img/1.RAS%20Solutions/RAS-Solutions%20banner.webp');
}

.hero.hero--solutions .hero__content {
	max-width: 960px;
}

.hero.hero--solutions .hero__title {
	color: #ffffff;
	font-size: 2rem; /* 标题两行布局 */
	line-height: 1.15;
	max-width: 960px;
	margin-bottom: 16px;
}

.hero.hero--solutions .hero__lead {
	color: #cbd5e1;
	font-size: 1rem; /* 1.15rem → 小一号 */
	max-width: 620px;
	margin-bottom: 24px;
}

.hero.hero--solutions .hero__facts {
	color: #cbd5e1;
	font-size: 0.8rem; /* 0.9rem → 小一号 */
	gap: 14px;
	margin-bottom: 0;
}

/* CTA 按钮整体调小一号（覆盖 btn--lg） */
.hero.hero--solutions .hero__actions {
	gap: 10px;
	margin-bottom: 24px;
}

.hero.hero--solutions .hero__actions .btn--lg {
	padding: 12px 24px; /* 16px 32px → 小一号 */
	font-size: 0.9rem; /* 1rem → 小一号 */
}

.hero.hero--solutions .hero__facts li::before {
	color: var(--brand-500);
}


/* RAS 水处理流程示意图：固定加高到 360px */
.diagram {
	min-height: 360px;
}

/* Compare 板块：两张对比图并排，间隔 16px */
.diagram.diagram--compare {
	justify-content: stretch;
	gap: 16px;
	background: none;
	border-radius: 0;
	min-height: 0;
	padding: 0;
	margin-top: -16px;
	margin-bottom: 12px;
}
.diagram--compare .compare-item {
	position: relative;
	flex: 1 1 0;
	min-width: 0;
	margin: 0;
}
.diagram--compare .compare-item img {
	display: block;
	width: 100%;
	aspect-ratio: 3 / 2;
	object-fit: cover;
	border-radius: 0;
}
.diagram--compare figcaption {
	position: absolute;
	left: 0;
	right: 0;
	bottom: 0;
	padding: 44px 20px 16px;
	color: #fff;
	font-size: 0.95rem;
	line-height: 1.5;
	background: linear-gradient(to top, rgba(0, 0, 0, 0.88) 0%, rgba(0, 0, 0, 0.55) 45%, rgba(0, 0, 0, 0.18) 78%, transparent 100%);
}
.diagram--compare figcaption strong {
	display: block;
	font-weight: 700;
	font-size: 1.1rem;
}
.diagram--compare figcaption span {
	display: block;
}


/* ==========================================================================
   How It Works — 7 模块图文卡（tetrapak Food categories 风格：上 3 大图 + 下 4 卡）
   ========================================================================== */
.mod-grid__top,
.mod-grid__bottom {
	align-items: start;
}

/* 上下排卡片大小一致：统一 4 列宽，图片 3:2 */
.mod-grid__top .card__media,
.mod-grid__bottom .card__media {
	aspect-ratio: 3 / 2;
}

/* 下排与上排之间留出垂直间距 */
.mod-grid__bottom {
	margin-top: 48px;
}

/* 卡片要点列表 */
.mod-grid__list {
	margin: 0;
	padding-left: 1.1em;
	font-size: 0.85rem;
	color: var(--gray-900);
}

.mod-grid__list li {
	margin-bottom: 4px;
}

/* ⑦ RAS Equipment Package Solutions：1 大卡 + 右侧 2 小卡上下堆叠（均为字在图中） */
.pkg-grid {
	display: grid;
	grid-template-columns: 2fr 1fr;
	column-gap: 16px;
	row-gap: 48px;
}

.pkg-stack {
	display: flex;
	flex-direction: column;
	gap: 16px;
}

.pkg-card {
	position: relative;
	display: flex;
	align-items: flex-end;
	overflow: hidden;
	min-height: 240px;
}

.pkg-stack .pkg-card {
	flex: 1;
}

.pkg-card--lg {
	min-height: 360px;
}

.pkg-card__media {
	position: absolute;
	inset: 0;
	width: 100%;
	height: 100%;
	object-fit: cover;
}

.pkg-card::after {
	content: "";
	position: absolute;
	inset: 0;
	z-index: 1;
	background: linear-gradient(to top, rgba(6, 30, 40, 0.82) 0%, rgba(6, 30, 40, 0.40) 55%, transparent 100%);
}

.pkg-card__body {
	position: relative;
	z-index: 2;
	width: 100%;
	padding: 24px;
}

.pkg-card--lg .pkg-card__body {
	padding: 32px;
}

.pkg-card__title {
	font-family: var(--font-heading);
	font-size: 1.2rem;
	font-weight: 600;
	color: #fff;
	margin-bottom: 8px;
}

.pkg-card--lg .pkg-card__title {
	font-size: 1.4rem;
}

.pkg-card__desc {
	color: rgba(255, 255, 255, 0.88);
	margin-bottom: 8px;
}

.pkg-card__list {
	color: rgba(255, 255, 255, 0.9);
}

@media (max-width: 1024px) {
	.pkg-grid {
		grid-template-columns: 1fr;
	}
}

@media (max-width: 640px) {
	.pkg-stack {
		gap: 16px;
	}
	.pkg-card,
	.pkg-card--lg {
		min-height: 240px;
	}
}

@media (max-width: 1024px) {
	.mod-grid__bottom {
		margin-top: 40px;
	}
}

@media (max-width: 640px) {
	.mod-grid__bottom {
		margin-top: 32px;
	}
}

/* ==========================================================================
  Components — 左：9 个小标题列表（紧凑）；右：大图（利乐风格）
  ========================================================================== */
.comp-split {
	display: grid;
	grid-template-columns: 1.1fr 1fr;
	align-items: flex-start;
	gap: 56px;
}

.comp-split__list {
	display: flex;
	flex-direction: column;
}

.comp-split__item {
	display: flex;
	align-items: baseline;
	gap: 10px;
	padding: 9px 0;
	border-bottom: 1px solid var(--gray-200);
}

.comp-split__item:last-child {
	border-bottom: none;
}

.comp-split__item::before {
	content: "→";
	flex: 0 0 auto;
	color: var(--brand-500);
	font-size: 0.85rem;
	line-height: 1.6;
}

.comp-split__cat {
	display: inline-block;
	width: 190px;
	font-family: var(--font-heading);
	font-weight: 700;
	font-size: 1rem;
	color: var(--ink-900);
}

.comp-split__sep {
	color: var(--brand-500);
	margin: 0 4px;
}

.comp-split__val {
	font-size: 0.92rem;
	color: var(--gray-600);
}

.comp-split__media img {
	width: 100%;
	height: 392px;
	object-fit: cover;
}

@media (max-width: 900px) {
	.comp-split {
		grid-template-columns: 1fr;
		gap: 32px;
	}
	.comp-split__media img {
		height: 320px;
	}
}

/* ==========================================================================
   Aquaculture Tank 产品详情页（讲解型）
   ========================================================================== */

/* Hero：产品图 banner（遵循内页 Banner 统一标准 .hero--page） */
.hero.hero--tank {
	background:
		linear-gradient(to right, rgba(6, 22, 32, 0.92) 0%, rgba(6, 22, 32, 0.62) 40%, rgba(6, 22, 32, 0.25) 70%, transparent 100%),
		url('assets/img/2-1.Aquaculture%20Tank/aquaculture%20Tank.webp');
}

.hero.hero--tank .hero__content { max-width: 760px; }
.hero.hero--tank .hero__title { font-size: 2.25rem; line-height: 1.15; margin-bottom: 16px; }
.hero.hero--tank .hero__lead { font-size: 1rem; max-width: 620px; margin-bottom: 24px; }
.hero.hero--tank .hero__actions { gap: 10px; margin-bottom: 24px; }
.hero.hero--tank .hero__actions .btn--lg { padding: 12px 24px; font-size: 0.9rem; }
.hero.hero--tank .hero__facts { font-size: 0.8rem; gap: 14px; }

/* Hero：Drum Filter（转鼓过滤器）内页 Banner（遵循 .hero--page 统一标准）
   遮罩与 Aquaculture Tank 页一致，背景为正式 banner 图 */
.hero.hero--aquaculture-drum {
	background:
		linear-gradient(to right, rgba(6, 22, 32, 0.92) 0%, rgba(6, 22, 32, 0.62) 40%, rgba(6, 22, 32, 0.25) 70%, transparent 100%),
		url('assets/img/2-2.Drum%20Filter/banner-drum-filter2.webp');
}

.hero.hero--aquaculture-drum .hero__content { max-width: 760px; }
.hero.hero--aquaculture-drum .hero__title { font-size: 2.25rem; line-height: 1.15; margin-bottom: 16px; }
.hero.hero--aquaculture-drum .hero__lead { font-size: 1rem; max-width: 620px; margin-bottom: 24px; }
.hero.hero--aquaculture-drum .hero__actions { gap: 10px; margin-bottom: 24px; }
.hero.hero--aquaculture-drum .hero__actions .btn--lg { padding: 12px 24px; font-size: 0.9rem; }
.hero.hero--aquaculture-drum .hero__facts { font-size: 0.8rem; gap: 14px; }

/* RAS Equipment 集合页 banner 背景图 */
.hero.hero--products {
	background-image:
		linear-gradient(to right, rgba(6, 22, 32, 0.92) 0%, rgba(6, 22, 32, 0.62) 40%, rgba(6, 22, 32, 0.25) 70%, transparent 100%),
		url('assets/img/2.Produncts/Complete%20RAS%20Equipment%20for%20Commercial%20Aquaculture.webp');
	background-size: auto, cover;
	background-position: center;
	background-repeat: no-repeat;
}

.hero.hero--products .hero__content { max-width: 760px; }
.hero.hero--products .hero__title { font-size: 2.25rem; line-height: 1.15; margin-bottom: 16px; }
.hero.hero--products .hero__lead { font-size: 1rem; max-width: 620px; margin-bottom: 24px; }
.hero.hero--products .hero__actions { gap: 10px; margin-bottom: 24px; }
.hero.hero--products .hero__actions .btn--lg { padding: 12px 24px; font-size: 0.9rem; }
.hero.hero--products .hero__facts { font-size: 0.8rem; gap: 14px; }

/* ==========================================================================
   RAS Equipment 集合页：大图背景引言板块（完整 RAS 组合 + YUTANK 支持）
   ========================================================================== */
.band__panel {
	position: relative;
	display: flex;
	align-items: center;
	min-height: 480px;
	background-size: cover;
	background-position: center;
	background-repeat: no-repeat;
	overflow: hidden;
}

.band__content {
	position: relative;
	max-width: 680px;
	margin: 48px;
	padding: 36px 44px;
	background: rgba(248, 250, 251, 0.75); /* 灰白色半透明矩形，仅覆盖文字区域 */
	border-radius: 10px;
}

.band__text {
	margin: 0;
	font-size: 1rem;
	line-height: 1.6;
	color: var(--ink-900);
}

.band__text + .band__text {
	margin-top: 16px;
}

/* Solutions ④：banner 所在板块顶部间距减半（默认 .section 为 64px） */
.section.band {
	padding-top: 32px;
}

/* Solutions ④：黑色渐变遮罩 banner（整图覆盖，文字靠左，高 400px） */
.band__panel--overlay {
	height: 400px;
	min-height: 0;
	margin-bottom: 32px; /* 与板块顶部 padding 一致，上下对称（间距减半） */
}

.band__panel--overlay::before {
	content: "";
	position: absolute;
	inset: 0;
	z-index: 1;
	background: linear-gradient(to right,
		rgba(6, 22, 32, 0.68) 0%,
		rgba(6, 22, 32, 0.62) 34%,
		rgba(6, 22, 32, 0.24) 48%,
		rgba(6, 22, 32, 0) 60%);
	pointer-events: none;
}

.band__content--left {
	position: relative;
	z-index: 2;
	max-width: 40%;
	margin: 48px;
	padding: 0;
	background: none;
	text-align: left;
}

.band__content--left .section__title {
	color: #ffffff;
}

.band__content--left .band__text {
	color: rgba(255, 255, 255, 0.92);
}

@media (max-width: 900px) {
	.band__panel {
		min-height: 0;
	}

	.band__content {
		margin: 24px;
		padding: 24px 20px;
	}

	.band__panel--overlay {
		height: auto;
		min-height: 300px;
	}

	.band__content--left {
		max-width: none;
		margin: 24px;
		padding: 0;
	}
}

/* Solutions ⑧：Customized RAS System Design 背景图（container 内，20% 黑色遮罩） */
.section--customize {
	padding: 0; /* 图片占满整个板块高度，去除上下留白 */
}

.section--customize .customize__bg {
	background-size: cover;
	background-position: center;
	background-repeat: no-repeat;
	border-radius: 0;
	padding: 56px 48px;
}

.section--customize .section__title {
	color: #ffffff;
	text-shadow: 0 1px 3px rgba(6, 22, 32, 0.55);
}

.section--customize .section__lead {
	color: #ffffff;
	text-shadow: 0 1px 2px rgba(6, 22, 32, 0.5);
	margin-bottom: 12px;
}

.section--customize .card--plain .card__title {
	color: #ffffff;
	text-shadow: 0 1px 2px rgba(6, 22, 32, 0.55);
}

.section--customize .card--plain .card__desc {
	color: #ffffff;
	text-shadow: 0 1px 2px rgba(6, 22, 32, 0.5);
}

.section--customize .customize__text,
.section--customize .checklist li {
	color: #ffffff;
	text-shadow: 0 1px 2px rgba(6, 22, 32, 0.5);
}

.section--customize .customize__text {
	line-height: 1.45;
	margin-bottom: 12px;
}

.section--customize .checklist {
	grid-template-columns: 1fr;
}

.section--customize .checklist li::before {
	color: #ffffff;
}

.section--customize .grid--divider > * + *::before {
	background: rgba(255, 255, 255, 0.28);
}

.section--customize .customize__text,
.section--customize .grid.customize__grid {
	max-width: 60%;
}

.section--customize .grid.customize__grid {
	column-gap: 24px;
}

.section--customize .grid.customize__grid > * + *::before {
	left: -12px;
}

@media (max-width: 900px) {
	.section--customize .customize__bg {
		padding: 32px 24px;
	}
	.section--customize .customize__text,
	.section--customize .grid.customize__grid {
		max-width: 100%;
	}
}

/* 深色背景板块内的说明文字与链接变白（如 RAS Equipment and Complete RAS Solutions） */
.section--customize .section-note {
	color: rgba(255, 255, 255, 0.92);
	text-shadow: 0 1px 2px rgba(6, 22, 32, 0.5);
}

.section--customize .section-note a {
	color: #4da6ff;
	font-weight: 700;
	text-decoration: underline;
}

/* RAS Equipment and Complete RAS Solutions：7 步两行紧凑排列 */
.section--customize .steps-grid {
	column-gap: 16px;
	row-gap: 20px;
}

.section--customize .steps-grid > * + *::before {
	left: -8px;
}

/* Hero：Protein Skimmer 内页 Banner 背景图 */
.hero.hero--aquaculture-protein-skimmer {
	background-image:
		linear-gradient(to right, rgba(6, 22, 32, 0.92) 0%, rgba(6, 22, 32, 0.62) 40%, rgba(6, 22, 32, 0.25) 70%, transparent 100%),
		url('assets/img/2-3.Protein%20Skimmer/Aquaculture%20Protein%20Skimmers%20for%20Commercial%20RAS%20Systems.webp');
	background-size: auto, cover;
	background-position: center;
	background-repeat: no-repeat;
}

.hero.hero--aquaculture-protein-skimmer .hero__content { max-width: 760px; }
.hero.hero--aquaculture-protein-skimmer .hero__title { font-size: 2.25rem; line-height: 1.15; margin-bottom: 16px; }
.hero.hero--aquaculture-protein-skimmer .hero__lead { font-size: 1rem; max-width: 620px; margin-bottom: 24px; }
.hero.hero--aquaculture-protein-skimmer .hero__actions { gap: 10px; margin-bottom: 24px; }
.hero.hero--aquaculture-protein-skimmer .hero__actions .btn--lg { padding: 12px 24px; font-size: 0.9rem; }
.hero.hero--aquaculture-protein-skimmer .hero__facts { font-size: 0.8rem; gap: 14px; }

/* TODO: Hero banner 背景图待替换（占位渐变） */
.hero.hero--aquaculture-degassing {
	background-image:
		linear-gradient(to right, rgba(6, 22, 32, 0.92) 0%, rgba(6, 22, 32, 0.62) 40%, rgba(6, 22, 32, 0.25) 70%, transparent 100%),
		url('assets/img/2-4.Degassing%20Tower/Aquaculture%20Degassing%20Towers%20for%20RAS%20CO%E2%82%82%20Removal.webp');
	background-size: auto, cover;
	background-position: center;
	background-repeat: no-repeat;
}

.hero.hero--aquaculture-degassing .hero__content { max-width: 760px; }
.hero.hero--aquaculture-degassing .hero__title { font-size: 2.25rem; line-height: 1.15; margin-bottom: 16px; }
.hero.hero--aquaculture-degassing .hero__lead { font-size: 1rem; max-width: 620px; margin-bottom: 24px; }
.hero.hero--aquaculture-degassing .hero__actions { gap: 10px; margin-bottom: 24px; }
.hero.hero--aquaculture-degassing .hero__actions .btn--lg { padding: 12px 24px; font-size: 0.9rem; }
.hero.hero--aquaculture-degassing .hero__facts { font-size: 0.8rem; gap: 14px; }

/* MBBR Biofilter Tank（移动床生物滤池）——banner 背景图 */
.hero.hero--aquaculture-mbbr {
	background-image:
		linear-gradient(to right, rgba(6, 22, 32, 0.92) 0%, rgba(6, 22, 32, 0.62) 40%, rgba(6, 22, 32, 0.25) 70%, transparent 100%),
		url('assets/img/2-5.MBBR%20Biofilter%20Tank/MBBR%20Biofilter%20Tank%20for%20Commercial%20Aquaculture%20RAS.webp');
	background-size: auto, cover;
	background-position: center;
	background-repeat: no-repeat;
}
.hero.hero--aquaculture-mbbr .hero__content { max-width: 760px; }
.hero.hero--aquaculture-mbbr .hero__title { font-size: 2.25rem; line-height: 1.15; margin-bottom: 16px; }
.hero.hero--aquaculture-mbbr .hero__lead { font-size: 1rem; max-width: 620px; margin-bottom: 24px; }
.hero.hero--aquaculture-mbbr .hero__actions { gap: 10px; margin-bottom: 24px; }
.hero.hero--aquaculture-mbbr .hero__actions .btn--lg { padding: 12px 24px; font-size: 0.9rem; }
.hero.hero--aquaculture-mbbr .hero__facts { font-size: 0.8rem; gap: 14px; }

/* UV Sterilizer（紫外线杀菌器）——banner 背景图 */
.hero.hero--aquaculture-uv {
	background-image:
		linear-gradient(to right, rgba(6, 22, 32, 0.92) 0%, rgba(6, 22, 32, 0.62) 40%, rgba(6, 22, 32, 0.25) 70%, transparent 100%),
		url('assets/img/2-6.UV%20Sterilizer/Aquaculture%20UV%20Sterilizer%20for%20Recirculating%20Aquaculture%20Systems.webp');
	background-size: auto, cover;
	background-position: center;
	background-repeat: no-repeat;
}
.hero.hero--aquaculture-uv .hero__content { max-width: 760px; }
.hero.hero--aquaculture-uv .hero__title { font-size: 2.25rem; line-height: 1.15; margin-bottom: 16px; }
.hero.hero--aquaculture-uv .hero__lead { font-size: 1rem; max-width: 620px; margin-bottom: 24px; }
.hero.hero--aquaculture-uv .hero__actions { gap: 10px; margin-bottom: 24px; }
.hero.hero--aquaculture-uv .hero__actions .btn--lg { padding: 12px 24px; font-size: 0.9rem; }
.hero.hero--aquaculture-uv .hero__facts { font-size: 0.8rem; gap: 14px; }

/* Oxygenation System（增氧系统）——banner 背景图 */
.hero.hero--oxygenation {
	background-image:
		linear-gradient(to right, rgba(6, 22, 32, 0.92) 0%, rgba(6, 22, 32, 0.62) 40%, rgba(6, 22, 32, 0.25) 70%, transparent 100%),
		url('assets/img/2-7.Oxygenation%20System/Aquaculture%20Oxygenation%20System%20for%20RAS.webp');
	background-size: auto, cover;
	background-position: center;
	background-repeat: no-repeat;
}
.hero.hero--oxygenation .hero__content { max-width: 760px; }
.hero.hero--oxygenation .hero__title { font-size: 2.25rem; line-height: 1.15; margin-bottom: 16px; }
.hero.hero--oxygenation .hero__lead { font-size: 1rem; max-width: 620px; margin-bottom: 24px; }
.hero.hero--oxygenation .hero__actions { gap: 10px; margin-bottom: 24px; }
.hero.hero--oxygenation .hero__actions .btn--lg { padding: 12px 24px; font-size: 0.9rem; }
.hero.hero--oxygenation .hero__facts { font-size: 0.8rem; gap: 14px; }

/* 占位图在各容器中的高度适配 */
.card__media .ph { height: 100%; min-height: 0; border-radius: 0; }
.split__media .ph { height: 360px; min-height: 0; border-radius: 0; }
.pcard > .ph { height: 200px; min-height: 0; border-radius: 0; }

/* Types 卡片要点列表 */
.card-points {
	list-style: none;
	margin: 0;
	padding: 0;
	font-size: 0.85rem;
	color: var(--gray-600);
	border-top: 1px solid var(--gray-200);
}

.card-points li {
	padding: 7px 0;
	border-bottom: 1px dashed var(--gray-200);
}

.card-points li:last-child { border-bottom: none; }
.card-points strong { color: var(--gray-900); }

/* 项目卡描述 */
.pcard__desc {
	margin: 0 0 12px;
	font-size: 0.88rem;
	color: var(--gray-600);
}

/* 板块底部注释 / 链接 */
.section-note {
	margin-top: 32px;
	font-size: 0.9rem;
	color: var(--gray-600);
}

.section-note a {
	color: var(--brand-700);
	font-weight: 600;
	text-decoration: none;
}

.section-note a:hover { text-decoration: underline; }

/* 表格横向滚动容器 */
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }

/* 对比表 */
.compare-table {
	width: 100%;
	border-collapse: collapse;
	font-size: 0.9rem;
	background: var(--white);
}

.compare-table th,
.compare-table td {
	padding: 14px 16px;
	border: 1px solid var(--gray-200);
	text-align: left;
	vertical-align: top;
}

.compare-table thead th {
	background: var(--ink-900);
	color: var(--white);
	font-weight: 600;
}

.compare-table thead th:first-child { background: var(--gray-900); }

.compare-table tbody th {
	background: var(--brand-50);
	color: var(--gray-900);
	font-weight: 600;
	white-space: nowrap;
}

.compare-table tbody tr:nth-child(even) td { background: var(--gray-50); }

/* 规格数据表 */
.data-table {
	width: 100%;
	border-collapse: collapse;
	font-size: 0.9rem;
	background: var(--white);
}

.data-table th,
.data-table td {
	padding: 12px 16px;
	border: 1px solid var(--gray-200);
	text-align: left;
}

.data-table thead th {
	background: var(--ink-900);
	color: var(--white);
	font-weight: 600;
}

.data-table tbody tr:nth-child(even) { background: var(--gray-50); }

/* Tab 切换（纯 CSS radio + label） */
.tabs { position: relative; }
.tabs__input { position: absolute; opacity: 0; pointer-events: none; }

.tabs__nav {
	display: flex;
	flex-wrap: wrap;
	gap: 4px;
	border-bottom: 2px solid var(--gray-200);
	margin-bottom: 28px;
}

.tabs__label {
	padding: 10px 18px;
	font-family: var(--font-heading);
	font-size: 0.95rem;
	font-weight: 600;
	color: var(--gray-600);
	cursor: pointer;
	border-bottom: 2px solid transparent;
	margin-bottom: -2px;
	transition: color 0.15s, border-color 0.15s;
}

.tabs__label:hover { color: var(--brand-600); }
.tabs__panel { display: none; }

#tab-pp:checked ~ .tabs__nav label[for="tab-pp"],
#tab-modular:checked ~ .tabs__nav label[for="tab-modular"],
#tab-galv:checked ~ .tabs__nav label[for="tab-galv"] {
	color: var(--brand-600);
	border-bottom-color: var(--brand-500);
}

#tab-pp:checked ~ #panel-pp,
#tab-modular:checked ~ #panel-modular,
#tab-galv:checked ~ #panel-galv { display: block; }

/* Drum Filter 双 Tab（Box Type PP / Sinking Type SS） */
#tab-df-pp:checked ~ .tabs__nav label[for="tab-df-pp"],
#tab-df-ss:checked ~ .tabs__nav label[for="tab-df-ss"] {
	color: var(--brand-600);
	border-bottom-color: var(--brand-500);
}

#tab-df-pp:checked ~ #panel-df-pp,
#tab-df-ss:checked ~ #panel-df-ss { display: block; }

/* 选型流程 5 步 */
.choose {
	list-style: none;
	margin: 0;
	padding: 0;
	display: grid;
	grid-template-columns: repeat(5, 1fr);
	column-gap: 48px;
	row-gap: 24px;
}

.choose__step {
	position: relative;
}

.choose__num {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 32px;
	height: 32px;
	border-radius: 50%;
	background: var(--brand-600);
	color: var(--white);
	font-weight: 700;
	font-family: var(--font-heading);
	margin-bottom: 12px;
}

.choose__title { font-size: 1rem; margin-bottom: 6px; }
.choose__desc { font-size: 0.85rem; color: var(--gray-600); margin: 0; }

.choose__step + .choose__step::before {
	content: "";
	position: absolute;
	top: 0;
	bottom: 0;
	left: -24px;
	width: 1px;
	background: var(--gray-200);
}

@media (max-width: 900px) {
	.choose { grid-template-columns: 1fr; }
	.choose__step + .choose__step::before { display: none; }
}

/* ==========================================================================
   Projects 页（案例集合页）
   ========================================================================== */
/* Banner 高度沿用产品页共用的 .hero--page 标准。 */
.hero.hero--projects .hero__content {
	max-width: 760px;
}
.hero.hero--projects .hero__title {
	color: #ffffff;
	font-size: 2.25rem;
	line-height: 1.15;
	margin-bottom: 16px;
}
.hero.hero--projects .hero__lead {
	color: #cbd5e1;
	font-size: 1rem;
	max-width: 620px;
}

/* Selected Projects —— 2 列卡片（无边框，中间竖线分隔） */
.projects-grid {
	display: grid;
	grid-template-columns: repeat(2, 1fr);
	gap: 56px;
	position: relative;
}
/* 每行左列卡片右侧的竖线：顶部对齐图片顶部、底部对齐「View Case Study」底部 */
.project-card {
	display: flex;
	flex-direction: column;
	text-decoration: none;
	color: inherit;
	transition: transform 0.25s ease;
	position: relative;
}
.project-card:nth-child(odd):not(:last-child)::after {
	content: '';
	position: absolute;
	top: 0;
	bottom: 0;
	right: -28px; /* gap(56px) 的一半，竖线落在两列正中间 */
	width: 1px;
	background: var(--gray-200);
}
.project-card:hover {
	transform: translateY(-4px);
}

.project-card__media {
	display: block;
	width: 100%;
	aspect-ratio: 16 / 9;
	object-fit: cover;
}

.project-card__body {
	display: flex;
	flex-direction: column;
	flex: 1;
	padding: 20px 0 0;
}

.project-card__tags {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
	margin-bottom: 14px;
}
.project-card__tag {
	font-family: var(--font-heading);
	font-size: 0.72rem;
	font-weight: 600;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	padding: 4px 10px;
	border-radius: 4px;
	background: var(--brand-50);
	color: var(--brand-700);
}

.project-card__title {
	margin: 0 0 6px;
	font-size: 1.55rem;
	font-weight: 700;
	line-height: 1.25;
	color: var(--ink-900);
}

.project-card__location {
	margin: 0 0 18px;
	font-size: 0.95rem;
	color: var(--gray-600);
}

.project-card__params {
	display: flex;
	flex-direction: column;
	gap: 10px;
	margin: 0 0 22px;
	padding: 14px 0 0;
	border-top: 1px solid var(--gray-200);
	list-style: none;
}
.project-card__params li {
	display: flex;
	align-items: baseline;
	justify-content: space-between;
	gap: 16px;
}
.project-card__param-label {
	font-size: 0.9rem;
	color: var(--gray-600);
}
.project-card__param-value {
	font-family: var(--font-heading);
	font-size: 0.95rem;
	font-weight: 600;
	color: var(--ink-900);
	text-align: right;
	white-space: nowrap;
}

.project-card__facts {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: 16px;
	margin: 0 0 22px;
	padding: 18px 0 0;
	border-top: 1px solid var(--gray-200);
	list-style: none;
}
.project-card__facts li {
	display: flex;
	flex-direction: column;
	gap: 3px;
}
.project-card__fact-value {
	font-family: var(--font-heading);
	font-size: 1.15rem;
	font-weight: 600;
	line-height: 1.1;
	color: var(--ink-900);
}
.project-card__fact-label {
	font-size: 0.78rem;
	color: var(--gray-600);
	letter-spacing: 0.02em;
}

.project-card__link {
	margin-top: auto;
	font-weight: 600;
	font-size: 0.95rem;
	color: var(--brand-600);
}
.project-card:hover .project-card__link {
	color: var(--brand-700);
}

/* Aquaculture Applications —— 4 列轻量项（无厚重卡片） */
.apps-grid {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 32px;
}
.app-item {
	display: flex;
	flex-direction: column;
	align-items: flex-start;
}
.app-item__icon {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 48px;
	height: 48px;
	margin-bottom: 16px;
	border-radius: var(--radius-md);
	background: var(--brand-50);
	color: var(--brand-600);
}
.app-item__icon svg {
	width: 24px;
	height: 24px;
}
.app-item__title {
	margin: 0 0 8px;
	font-size: 1.1rem;
	font-weight: 600;
}
.app-item__desc {
	margin: 0;
	font-size: 0.9rem;
	line-height: 1.6;
	color: var(--gray-600);
}
.app-item__link {
	display: inline-block;
	margin-top: 14px;
	font-size: 0.9rem;
	font-weight: 600;
	color: var(--brand-600);
	text-decoration: none;
}
.app-item__link:hover {
	color: var(--brand-700);
}

/* Project Scope —— 横向流程 */
.scope-flow {
	display: flex;
	margin: 0;
	padding: 0;
	list-style: none;
}
.scope-flow__step {
	position: relative;
	flex: 1;
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 12px;
	padding: 8px 16px;
	text-align: center;
}
.scope-flow__step:not(:last-child)::after {
	content: "→";
	position: absolute;
	top: 16px;
	right: -6px;
	font-size: 1.05rem;
	line-height: 1;
	color: #94a3b8;
}
.scope-flow__index {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 38px;
	height: 38px;
	border-radius: 50%;
	background: var(--brand-50);
	color: var(--brand-700);
	font-family: var(--font-heading);
	font-size: 0.85rem;
	font-weight: 600;
	position: relative;
	z-index: 1;
}
.scope-flow__name {
	font-weight: 600;
	font-size: 0.95rem;
	line-height: 1.3;
	color: var(--ink-900);
}

/* CTA 按钮组 */
.cta__actions {
	display: flex;
	flex-wrap: wrap;
	gap: 14px;
	margin-top: 28px;
}

/* CTA 转化区强化 */
.cta--projects .cta__inner {
	grid-template-columns: 1fr;
	text-align: center;
	padding: 72px 48px;
}
.cta--projects .cta__title {
	font-size: 2.5rem;
}
.cta--projects .cta__lead {
	max-width: 640px;
	margin: 16px auto 0;
	font-size: 1.05rem;
}
.cta--projects .cta__actions {
	justify-content: center;
	margin-top: 32px;
}

/* 案例详情页 Hero 图片 */
.p-hero__img {
	display: block;
	width: 100%;
	height: 320px;
	object-fit: cover;
}

/* 响应式 */
@media (max-width: 900px) {
	.apps-grid { grid-template-columns: repeat(2, 1fr); }
	.scope-flow {
		display: grid;
		grid-template-columns: repeat(3, 1fr);
		gap: 20px;
	}
	.scope-flow__step { padding: 0; }
	.scope-flow__step::after { display: none; }
}

@media (max-width: 640px) {
	.projects-grid { grid-template-columns: 1fr; }
	.project-card:nth-child(odd):not(:last-child)::after { display: none; }
	.apps-grid { grid-template-columns: 1fr; }
	.scope-flow { grid-template-columns: 1fr; gap: 14px; }
	.scope-flow__step {
		flex-direction: row;
		align-items: center;
		justify-content: flex-start;
		gap: 14px;
		text-align: left;
	}
	.cta--projects .cta__inner { padding: 48px 24px; }
}

/* =========================================================
   Homepage v4 — Solution-oriented homepage
   Scoped to .home-v4 to avoid changing shared site components.
   ========================================================= */
.home-v4 {
  --home-border: rgba(15, 23, 42, .12);
  --home-muted: #64748b;
  --home-surface: #f8fafc;
  --home-dark: #0f172a;
  --home-accent: #0b5f73;
}

.home-v4 .home-eyebrow {
  margin: 0 0 12px;
  font-size: .78rem;
  line-height: 1.3;
  font-weight: 700;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: var(--home-accent);
}

.home-v4 .home-hero {
  padding: clamp(72px, 8vw, 124px) 0 clamp(56px, 7vw, 96px);
  background: linear-gradient(180deg, #f8fbfc 0%, #fff 100%);
  border-bottom: 1px solid var(--home-border);
}

.home-v4 .home-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(420px, .95fr);
  gap: clamp(40px, 6vw, 88px);
  align-items: center;
}

.home-v4 .home-hero__title {
  margin: 0;
  max-width: 840px;
  font-size: clamp(2.6rem, 5vw, 5.2rem);
  line-height: .98;
  letter-spacing: -.045em;
  color: var(--home-dark);
}

.home-v4 .home-hero__lead {
  max-width: 720px;
  margin: 26px 0 0;
  font-size: clamp(1.05rem, 1.45vw, 1.28rem);
  line-height: 1.7;
  color: #475569;
}

.home-v4 .home-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.home-v4 .home-placeholder {
  min-height: 220px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 28px;
  text-align: center;
  border: 1px dashed rgba(15, 23, 42, .28);
  background:
    linear-gradient(135deg, rgba(11, 95, 115, .045) 25%, transparent 25%) -18px 0/36px 36px,
    linear-gradient(225deg, rgba(11, 95, 115, .045) 25%, transparent 25%) -18px 0/36px 36px,
    linear-gradient(315deg, rgba(11, 95, 115, .045) 25%, transparent 25%) 0 0/36px 36px,
    linear-gradient(45deg, rgba(11, 95, 115, .045) 25%, #fff 25%) 0 0/36px 36px;
  color: #475569;
}

.home-v4 .home-placeholder strong {
  font-size: .78rem;
  letter-spacing: .08em;
  color: var(--home-dark);
}

.home-v4 .home-placeholder span {
  font-size: 1rem;
  font-weight: 600;
}

.home-v4 .home-placeholder small {
  max-width: 320px;
  line-height: 1.45;
  color: var(--home-muted);
}

.home-v4 .home-placeholder--hero {
  min-height: 440px;
  aspect-ratio: 4 / 3;
}

.home-v4 .home-proof {
  border-bottom: 1px solid var(--home-border);
  background: #fff;
}

.home-v4 .home-proof__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.home-v4 .home-proof__item {
  min-height: 106px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  padding: 22px 28px;
  border-right: 1px solid var(--home-border);
}

.home-v4 .home-proof__item:first-child { border-left: 1px solid var(--home-border); }
.home-v4 .home-proof__item strong { color: var(--home-dark); font-size: .96rem; }
.home-v4 .home-proof__item span { color: var(--home-muted); font-size: .86rem; line-height: 1.4; }

.home-v4 .home-requirements__diagram {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) auto minmax(210px, .72fr) auto minmax(230px, .9fr);
  gap: 20px;
  align-items: center;
  margin-top: 44px;
}

.home-v4 .home-requirements__inputs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.home-v4 .home-input,
.home-v4 .home-design-core,
.home-v4 .home-design-output {
  border: 1px solid var(--home-border);
  background: #fff;
}

.home-v4 .home-input { padding: 18px; }
.home-v4 .home-input strong { display: block; margin-bottom: 5px; color: var(--home-dark); }
.home-v4 .home-input span { display: block; color: var(--home-muted); font-size: .88rem; line-height: 1.45; }

.home-v4 .home-design-core {
  padding: 34px 24px;
  text-align: center;
  background: var(--home-dark);
  color: #fff;
}
.home-v4 .home-design-core span { display: block; margin-bottom: 8px; font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; opacity: .7; }
.home-v4 .home-design-core strong { display: block; font-size: 1.22rem; }
.home-v4 .home-design-core small { display: block; margin-top: 10px; line-height: 1.5; opacity: .72; }

.home-v4 .home-design-output { padding: 25px; }
.home-v4 .home-design-output strong { display: block; margin-bottom: 13px; color: var(--home-dark); }
.home-v4 .home-design-output ul { margin: 0; padding-left: 18px; color: var(--home-muted); line-height: 1.8; }
.home-v4 .home-flow-arrow { font-size: 1.8rem; color: #94a3b8; }

.home-v4 .home-process__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
  margin-top: 42px;
}
.home-v4 .home-process__step { position: relative; }
.home-v4 .home-placeholder--process { min-height: 190px; }
.home-v4 .home-process__num { display: inline-block; margin-top: 20px; font-size: .75rem; letter-spacing: .08em; color: var(--home-accent); font-weight: 700; }
.home-v4 .home-process__step h3 { margin: 8px 0 8px; color: var(--home-dark); font-size: 1.18rem; }
.home-v4 .home-process__step p { margin: 0; color: var(--home-muted); line-height: 1.65; }

.home-v4 .home-system__flow {
  display: flex;
  align-items: stretch;
  gap: 10px;
  margin-top: 42px;
  overflow-x: auto;
  padding: 4px 2px 18px;
}
.home-v4 .home-system__stage {
  min-width: 175px;
  padding: 22px 18px;
  border: 1px solid var(--home-border);
  background: #fff;
}
.home-v4 .home-system__stage span { display: block; margin-bottom: 8px; font-size: .71rem; text-transform: uppercase; letter-spacing: .08em; color: var(--home-accent); font-weight: 700; }
.home-v4 .home-system__stage strong { display: block; color: var(--home-dark); font-size: 1rem; }
.home-v4 .home-system__stage small { display: block; margin-top: 8px; color: var(--home-muted); line-height: 1.45; }
.home-v4 .home-system__stage--culture { background: var(--home-dark); }
.home-v4 .home-system__stage--culture strong { color: #fff; }
.home-v4 .home-system__stage--culture small, .home-v4 .home-system__stage--culture span { color: rgba(255,255,255,.72); }
.home-v4 .home-system__arrow { align-self: center; flex: 0 0 auto; font-size: 1.25rem; color: #94a3b8; }
.home-v4 .home-system__note { margin: 12px 0 0; color: var(--home-muted); font-size: .82rem; }

.home-v4 .home-solutions__grid,
.home-v4 .home-projects__grid,
.home-v4 .home-capabilities__grid,
.home-v4 .home-facilities {
  display: grid;
  gap: 24px;
  margin-top: 42px;
}
.home-v4 .home-solutions__grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.home-v4 .home-solution-card { overflow: hidden; background: #fff; border: 1px solid var(--home-border); }
.home-v4 .home-solution-card img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; display: block; }
.home-v4 .home-solution-card__body { padding: 22px; }
.home-v4 .home-solution-card h3 { margin: 0 0 8px; color: var(--home-dark); font-size: 1.12rem; }
.home-v4 .home-solution-card p { margin: 0 0 14px; color: var(--home-muted); line-height: 1.55; }
.home-v4 .home-solution-card a { font-weight: 700; text-decoration: none; color: var(--home-accent); }

.home-v4 .home-section-action { margin-top: 32px; }
.home-v4 .home-projects__grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.home-v4 .home-placeholder--project { min-height: 285px; }
.home-v4 .home-project-card { border: 1px solid var(--home-border); background: #fff; }
.home-v4 .home-project-card__body { padding: 24px; }
.home-v4 .home-project-card__type { margin: 0 0 7px; font-size: .72rem; text-transform: uppercase; letter-spacing: .09em; font-weight: 700; color: var(--home-accent); }
.home-v4 .home-project-card h3 { margin: 0 0 6px; color: var(--home-dark); }
.home-v4 .home-project-card__body > p:not(.home-v4 .home-project-card__type) { margin: 0; color: var(--home-muted); }
.home-v4 .home-project-card__meta { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 20px; padding-top: 18px; border-top: 1px solid var(--home-border); }
.home-v4 .home-project-card__meta span { font-size: .76rem; line-height: 1.4; color: var(--home-muted); }
.home-v4 .home-project-card__meta strong { display: block; margin-bottom: 4px; color: var(--home-dark); font-size: .7rem; text-transform: uppercase; letter-spacing: .04em; }

.home-v4 .home-capabilities__grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.home-v4 .home-placeholder--capability { min-height: 220px; }
.home-v4 .home-capability-card h3 { margin: 18px 0 8px; color: var(--home-dark); }
.home-v4 .home-capability-card p { margin: 0; color: var(--home-muted); line-height: 1.6; }
.home-v4 .home-equipment-links { display: grid; grid-template-columns: auto 1fr auto; gap: 24px; align-items: center; margin-top: 42px; padding: 24px 0; border-top: 1px solid var(--home-border); border-bottom: 1px solid var(--home-border); }
.home-v4 .home-equipment-links strong { color: var(--home-dark); }
.home-v4 .home-equipment-links span { color: var(--home-muted); line-height: 1.5; }
.home-v4 .home-equipment-links a { white-space: nowrap; color: var(--home-accent); font-weight: 700; text-decoration: none; }
.home-v4 .home-facilities { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.home-v4 .home-placeholder--facility { min-height: 260px; }
.home-v4 .home-facilities h3 { margin: 18px 0 8px; color: var(--home-dark); }
.home-v4 .home-facilities p { margin: 0; color: var(--home-muted); line-height: 1.6; }

.home-v4 .home-faq__list { margin-top: 34px; border-top: 1px solid var(--home-border); }
.home-v4 .home-faq__list .faq__item { border-bottom: 1px solid var(--home-border); }


@media (max-width: 1100px) {
  .home-v4 .home-hero__grid { grid-template-columns: 1fr; }
  .home-v4 .home-placeholder--hero { min-height: 360px; aspect-ratio: 16 / 8; }
  .home-v4 .home-proof__grid { grid-template-columns: repeat(2, 1fr); }
  .home-v4 .home-requirements__diagram { grid-template-columns: 1fr; }
  .home-v4 .home-flow-arrow { transform: rotate(90deg); justify-self: center; }
  .home-v4 .home-process__grid, .home-v4 .home-solutions__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .home-v4 .home-capabilities__grid { grid-template-columns: 1fr; }
  .home-v4 .home-equipment-links { grid-template-columns: 1fr; gap: 10px; }
}

@media (max-width: 760px) {
  .home-v4 .home-hero { padding-top: 54px; }
  .home-v4 .home-hero__title { font-size: clamp(2.35rem, 12vw, 3.5rem); }
  .home-v4 .home-hero__actions { flex-direction: column; align-items: stretch; }
  .home-v4 .home-proof__grid, .home-v4 .home-process__grid, .home-v4 .home-solutions__grid, .home-v4 .home-projects__grid, .home-v4 .home-facilities { grid-template-columns: 1fr; }
  .home-v4 .home-proof__item, .home-v4 .home-proof__item:first-child { border-left: 0; border-right: 0; border-bottom: 1px solid var(--home-border); }
  .home-v4 .home-requirements__inputs { grid-template-columns: 1fr; }
  .home-v4 .home-system__flow { scroll-snap-type: x proximity; }
  .home-v4 .home-system__stage { scroll-snap-align: start; }
  .home-v4 .home-project-card__meta { grid-template-columns: 1fr; }


}

/* Current-theme integration: function-first flow, narrow viewports and form layout. */
.home-v4 .home-placeholder { overflow-wrap: anywhere; min-width: 0; }
.home-v4 .home-system__flow { gap: 8px; overflow: visible; }
.home-v4 .home-system__stage { min-width: 0; flex: 1 1 0; padding: 18px 10px; overflow-wrap: anywhere; }
.home-v4 .home-system__stage strong { font-size: .95rem; line-height: 1.4; margin-bottom: 10px; }
.home-v4 .home-system__stage span { font-size: .78rem; font-weight: 400; line-height: 1.5; letter-spacing: 0; text-transform: none; margin: 0; }


@media (max-width: 1100px) {
  .home-v4 .home-system__flow { flex-direction: column; }
  .home-v4 .home-system__arrow { transform: rotate(90deg); }
  .home-v4 .home-system__stage { padding: 20px; }

}
@media (max-width: 760px) {
  .home-v4 .home-placeholder--hero { min-height: 250px; aspect-ratio: auto; }
  .home-v4 .home-hero__actions .btn { white-space: normal; text-align: center; }
}

/* Homepage visual alignment: existing Banner, Capacity and blog conventions. */
.home-v4 {
  --home-border: var(--gray-200);
  --home-muted: var(--gray-600);
  --home-dark: var(--ink-900);
  --home-accent: var(--brand-600);
}
.home-v4 .home-hero {
  position: relative;
  isolation: isolate;
  display: flex;
  width: 100%;
  align-items: center;
  min-height: 0;
  aspect-ratio: 1920 / 765;
  padding: 80px 0;
  background: var(--ink-900);
  border: 0;
}
.home-v4 .home-hero__grid { display: block; width: 100%; }
.home-v4 .home-hero__content { position: relative; z-index: 1; max-width: 840px; }
.home-v4 .home-hero__title { max-width: 840px; font-size: 2.25rem; line-height: 1.15; letter-spacing: normal; font-weight: 700; color: #fff; }
.home-v4 .home-hero__lead { max-width: 680px; margin: 16px 0 0; font-size: 1rem; line-height: 1.7; color: #cbd5e1; }
.home-v4 .home-hero .home-eyebrow { color: #cbd5e1; }
.home-v4 .home-hero__actions { margin-top: 24px; }
.home-v4 .home-hero__actions .btn { padding: 12px 24px; font-size: .9rem; }
.home-v4 .home-hero__media { position: absolute; z-index: -1; inset: 0; }
.home-v4 .home-hero__media img { display: block; width: 100%; height: 100%; object-fit: cover; }
.home-v4 .home-hero__media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(6,22,32,.85) 0%, rgba(6,22,32,.55) 40%, rgba(6,22,32,.10) 75%, transparent 100%), linear-gradient(270deg, rgba(6,22,32,.45), transparent 40%);
}
.home-v4 .home-proof__item,
.home-v4 .home-proof__item:first-child { position: relative; border-left: 0; border-right: 0; }
.home-v4 .home-proof__item + .home-proof__item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 60px;
  background: var(--gray-200);
}
@media (min-width: 761px) and (max-width: 1100px) {
  .home-v4 .home-proof__item:nth-child(odd)::before { display: none; }
}
@media (max-width: 760px) {
  .home-v4 .home-proof__item::before { display: none; }
}
.home-v4 .home-columns { gap: 48px; margin-top: 40px; }
.home-v4 .home-columns--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.home-v4 .home-columns--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.home-v4 .home-columns--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.home-v4 .home-columns > article { position: relative; min-width: 0; border: 0; border-radius: 0; box-shadow: none; background: none; overflow: visible; }
.home-v4 .home-columns > article::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: -24px;
  width: 1px;
  background: var(--gray-200);
}
.home-v4 .home-columns--4 > :nth-child(4n+1)::before,
.home-v4 .home-columns--3 > :nth-child(3n+1)::before,
.home-v4 .home-columns--2 > :nth-child(2n+1)::before { display: none; }
.home-v4 .home-columns .home-placeholder,
.home-v4 .home-process .home-process__image,
.home-v4 .home-capabilities .home-capabilities__image,
.home-v4 .home-projects .home-projects__image,
.home-v4 .home-columns .home-solution-card img {
  width: 100%;
  height: auto;
  min-height: 0;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 0;
  border-radius: 0;
}
.home-v4 .home-columns .home-placeholder { padding: 20px; }
.home-v4 .home-facilities .home-facilities__media { width: 100%; aspect-ratio: 16 / 9; overflow: hidden; }
.home-v4 .home-facilities .home-facilities__media img { display: block; width: 100%; height: 100%; aspect-ratio: auto; object-fit: cover; }
.home-v4 .home-solution-card__body,
.home-v4 .home-project-card__body { padding: 20px 0 0; }
.home-v4 .home-columns h3 { font-size: 1.1rem; line-height: 1.4; font-weight: 700; margin: 20px 0 8px; }
.home-v4 .home-solution-card__body h3 { margin-top: 0; }
.home-v4 .home-process__step h3 { margin-top: 8px; }
.home-v4 .home-columns p { font-size: .95rem; line-height: 1.65; }
.home-v4 .home-project-card__body span { display: block; color: var(--ink-900); font-size: 1.1rem; font-weight: 700; line-height: 1.4; }
.home-v4 .home-project-card__body small { display: block; margin-top: 8px; color: var(--gray-600); }
.home-v4 .home-solution-card a,
.home-v4 .home-equipment-links a { font-size: .9rem; font-weight: 500; color: var(--brand-600); }

@media (max-width: 820px) {
  .home-v4 .home-hero { aspect-ratio: auto; padding: 64px 0; }
  .home-v4 .home-hero__media::after { background: linear-gradient(90deg, rgba(6,22,32,.88), rgba(6,22,32,.66)); }
}
@media (min-width: 641px) and (max-width: 1024px) {
  .home-v4 .home-columns { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .home-v4 .home-columns > :nth-child(n)::before { display: none; }
  .home-v4 .home-columns > :nth-child(2n)::before { display: block; }
}
@media (max-width: 640px) {
  .home-v4 .home-hero { min-height: 0; padding: 64px 0; }
  .home-v4 .home-hero__title { font-size: 1.75rem; }
  .home-v4 .home-placeholder--hero { padding: 24px 20px; align-items: flex-start; }
  .home-v4 .home-placeholder--hero > * { max-width: 100%; text-align: left; }
  .home-v4 .home-columns { grid-template-columns: minmax(0, 1fr); gap: 40px; margin-top: 32px; }
  .home-v4 .home-columns > :nth-child(n)::before { display: none; }
}

/* Requirements-only engineering module; HOME-REQUIREMENTS-BG is replaceable in the template. */
.home-v4 .home-requirements .home-requirements__diagram {
  position: relative;
  isolation: isolate;
  padding: 48px 32px;
  grid-template-columns: minmax(0, 1.45fr) 40px minmax(0, .88fr) 40px minmax(0, 1fr);
  gap: 16px;
  border: 1px solid var(--gray-200);
}
.home-v4 .home-requirements .home-requirements__backdrop { position: absolute; inset: 0; z-index: -1; overflow: hidden; }
.home-v4 .home-requirements .home-requirements__backdrop img { display: block; width: 100%; height: 100%; object-fit: cover; object-position: center; }
.home-v4 .home-requirements .home-input,
.home-v4 .home-requirements .home-design-output {
  background: rgba(255,255,255,.9);
  border-color: #d4e0e4;
  box-shadow: 0 4px 16px rgba(10,42,58,.06);
}
.home-v4 .home-requirements .home-design-core { background: rgba(10,42,58,.9); border-color: var(--ink-900); box-shadow: 0 8px 24px rgba(10,42,58,.18); padding: 34px 20px; }
.home-v4 .home-requirements .home-design-core small { opacity: 1; color: #dce8ed; }
.home-v4 .home-requirements .home-flow-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  font-size: 2.25rem;
  line-height: 1;
  font-weight: 900;
  -webkit-text-stroke: 1px currentColor;
  color: var(--brand-700);
  background: transparent;
  border: 0;
}
@media (max-width: 1100px) {
  .home-v4 .home-requirements .home-requirements__diagram { grid-template-columns: minmax(0, 1fr); gap: 20px; padding: 32px; }
  .home-v4 .home-requirements .home-design-core,
  .home-v4 .home-requirements .home-design-output { width: 100%; max-width: 560px; justify-self: center; }
}
@media (max-width: 760px) {
  .home-v4 .home-requirements .home-requirements__diagram { padding: 24px 16px; }
}

/* Capability submodule: native visit gallery, no global gallery styles. */
.home-v4 .home-capabilities .home-visits { position: relative; margin-top: 44px; padding-top: 32px; border-top: 1px solid var(--gray-200); }
.home-v4 .home-capabilities .home-visits__title { margin: 0 0 10px; color: var(--ink-900); font-size: 1.5rem; line-height: 1.35; }
.home-v4 .home-capabilities .home-visits__lead { max-width: 760px; margin: 0 0 22px; color: var(--gray-600); font-size: .95rem; line-height: 1.65; }
.home-v4 .home-capabilities .home-visits__pause { display: block; margin: -8px 0 12px auto; padding: 4px 0; border: 0; background: none; color: var(--brand-700); font: inherit; font-size: .8rem; cursor: pointer; text-decoration: underline; text-underline-offset: 3px; }
.home-v4 .home-capabilities .home-visits__pause[hidden] { display: none; }
.home-v4 .home-capabilities .home-visits__frame { position: relative; }
.home-v4 .home-capabilities .home-visits__frame::after { content: ''; position: absolute; inset: 0 0 8px auto; width: 28px; background: linear-gradient(to right, transparent, #f7f9fb); pointer-events: none; }
.home-v4 .home-capabilities .home-visits__viewport { overflow-x: auto; overflow-y: hidden; padding-bottom: 8px; scrollbar-width: thin; scrollbar-color: #c6d2d8 transparent; cursor: grab; overscroll-behavior-x: contain; }
.home-v4 .home-capabilities .home-visits__viewport.is-dragging { cursor: grabbing; user-select: none; }
.home-v4 .home-capabilities .home-visits__viewport:focus-visible,
.home-v4 .home-capabilities .home-visits__pause:focus-visible { outline: 2px solid var(--brand-700); outline-offset: 3px; }
.home-v4 .home-capabilities .home-visits__track { display: flex; gap: 16px; }
.home-v4 .home-capabilities .home-visits__item { flex: 0 0 calc((100% - 56px) / 4.5); min-width: 0; margin: 0; }
.home-v4 .home-capabilities .home-visits__media { width: 100%; aspect-ratio: 3 / 2; overflow: hidden; background: #e8eff2; }
.home-v4 .home-capabilities .home-visits__media img { display: block; width: 100%; height: 100%; object-fit: cover; }
.home-v4 .home-capabilities .home-visits__placeholder { display: flex; align-items: center; justify-content: center; width: 100%; height: 100%; color: #526b76; font-size: .75rem; background: linear-gradient(135deg, #e8eff2, #f5f8fa); }
.home-v4 .home-capabilities .home-visits__item figcaption { margin-top: 9px; color: var(--gray-600); font-size: .8rem; line-height: 1.5; }
@media (max-width: 1100px) {
  .home-v4 .home-capabilities .home-visits__item { flex-basis: calc((100% - 24px) / 2.5); }
}
@media (max-width: 640px) {
  .home-v4 .home-capabilities .home-visits { margin-top: 32px; padding-top: 28px; }
  .home-v4 .home-capabilities .home-visits__title { font-size: 1.3rem; }
  .home-v4 .home-capabilities .home-visits__item { flex-basis: calc((100% - 4.8px) / 1.3); }
}


/* Integrated RAS only: image-led, function-first process columns. */
.home-v4 .home-system .home-system__flow {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
  padding: 0;
  margin-top: 40px;
  overflow: visible;
  counter-reset: home-ras;
}
.home-v4 .home-system .home-system__stage {
  position: relative;
  min-width: 0;
  padding: 0;
  border: 0;
  background: none;
  overflow-wrap: normal;
  counter-increment: home-ras;
}
.home-v4 .home-system .home-system__stage + .home-system__stage::before {
  content: '';
  position: absolute;
  left: -12px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--gray-200);
}
.home-v4 .home-system .home-system__visual {
  position: relative;
  width: 100%;
  min-height: 0;
  aspect-ratio: 4 / 3;
  border: 0;
  padding: 24px 8px 8px;
}
.home-v4 .home-system .home-system__visual::before { content: counter(home-ras, decimal-leading-zero); position: absolute; top: 5px; left: 8px; font-size: .65rem; color: var(--brand-700); font-weight: 700; }
.home-v4 .home-system .home-system__visual img { display: block; width: 100%; height: 100%; object-fit: cover; }
.home-v4 .home-system .home-system__visual:has(img) { padding: 0; }
.home-v4 .home-system .home-system__placeholder { margin: 0; font-size: .62rem; font-weight: 500; line-height: 1.5; letter-spacing: .02em; text-transform: none; color: var(--gray-600); overflow-wrap: anywhere; }
.home-v4 .home-system .home-system__content { padding-top: 18px; }
.home-v4 .home-system .home-system__function { display: flex; align-items: center; min-height: 2.8em; margin: 0 0 12px; font-size: 1.1rem; line-height: 1.4; font-weight: 700; color: var(--ink-900); }
.home-v4 .home-system .home-system__equipment { display: block; margin: 0; font-size: .95rem; line-height: 1.5; font-weight: 500; letter-spacing: normal; text-transform: none; color: var(--brand-700); }
.home-v4 .home-system .home-system__description { display: block; margin: 8px 0 0; font-size: .95rem; line-height: 1.6; color: var(--gray-600); }
.home-v4 .home-system .home-system__stage--culture .home-system__function { padding: 0; background: none; color: var(--ink-900); }
.home-v4 .home-system .home-system__arrow { position: absolute; top: 0; right: -20px; margin-top: 37.5%; transform: translateY(-50%); width: 16px; font-size: .85rem; line-height: 20px; text-align: center; background: #fff; color: #71858e; z-index: 1; }
.home-v4 .home-system .home-system__note { margin-top: 24px; font-size: .95rem; line-height: 1.65; }
.home-v4 .home-system .home-system__stage:nth-child(4) .home-system__arrow { display: none; }
@media (min-width: 641px) {
  .home-v4 .home-system .home-system__flow { grid-template-columns: repeat(4, minmax(0, 1fr)); row-gap: 56px; }
  .home-v4 .home-system .home-system__stage:nth-child(4n+1)::before { display: none; }
}
@media (max-width: 640px) {
  .home-v4 .home-system .home-system__flow { grid-template-columns: minmax(0, 1fr); gap: 48px; }
  .home-v4 .home-system .home-system__stage + .home-system__stage::before { left: 0; right: 0; top: -24px; bottom: auto; width: auto; height: 1px; }
  .home-v4 .home-system .home-system__arrow { top: auto; bottom: -34px; left: 50%; right: auto; margin: 0; transform: translateX(-50%) rotate(90deg); }
  .home-v4 .home-system .home-system__placeholder { font-size: .8rem; }
  .home-v4 .home-system .home-system__function { min-height: 0; }
}

/* Global floating contact shortcuts. */
.floating-contact {
 position: fixed;
 right: max(24px, env(safe-area-inset-right));
 bottom: max(24px, env(safe-area-inset-bottom));
 z-index: 90;
 display: flex;
 flex-direction: column;
 gap: 10px;
}
.floating-contact__item {
 display: flex;
 align-items: center;
 justify-content: center;
 width: 48px;
 height: 48px;
 padding: 0;
 border: 1px solid #d7e3e7;
 border-radius: 6px;
 background: #fff;
 color: var(--brand-700);
 box-shadow: 0 2px 8px rgb(0 30 45 / 12%);
 cursor: pointer;
 text-decoration: none;
 transition: background-color .15s, color .15s;
}
.floating-contact__item svg { width: 24px; height: 24px; }
.floating-contact__item:hover { background: var(--brand-700); color: #fff; }
.floating-contact__item:focus-visible { outline: 3px solid var(--brand-500); outline-offset: 3px; }
.floating-contact__wechat { position: relative; }
.floating-contact__item--wechat { list-style: none; border-color: var(--brand-700); box-shadow: none; }
.floating-contact__item--wechat::-webkit-details-marker { display: none; }
.floating-contact__item--wechat:hover, .floating-contact__wechat[open] .floating-contact__item--wechat { background: #fff; color: var(--brand-700); }
.wechat-contact-panel { position: absolute; right: calc(100% + 12px); bottom: 0; width: min(260px, calc(100vw - 80px)); box-sizing: border-box; padding: 18px; border: 1px solid var(--brand-700); border-radius: 6px; background: #fff; color: var(--brand-700); font-size: .875rem; }
.wechat-contact-panel p { margin: 10px 0; }
.wechat-contact-number { user-select: all; white-space: nowrap; }
.wechat-copy-button { padding: 8px 12px; border: 1px solid var(--brand-700); border-radius: 4px; background: #fff; color: var(--brand-700); font: inherit; cursor: pointer; }
.wechat-copy-button:focus-visible { outline: 2px solid var(--brand-500); outline-offset: 3px; }
.wechat-contact-panel .wechat-contact-hint { margin-bottom: 0; font-size: .75rem; line-height: 1.6; }
@media (max-width: 600px) {
 .floating-contact { right: max(12px, env(safe-area-inset-right)); bottom: max(12px, env(safe-area-inset-bottom)); gap: 8px; }
 .floating-contact__item { width: 44px; height: 44px; }
}
@media (prefers-reduced-motion: reduce) { .floating-contact__item { transition: none; } }
@media print { .floating-contact { display: none; } }

/* Native project references on solution and equipment pages. */
.project-showcase__grid { display: grid; grid-template-columns: repeat(var(--showcase-columns), minmax(0, 1fr)); gap: 28px; margin-top: 28px; }
.project-showcase__card { min-width: 0; }
.project-showcase__figure { margin: 0; }
.project-showcase__figure > a { display: block; }
.project-showcase .pcard__media { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: contain; background: #edf2f4; }
.project-showcase figcaption { font-size: 12px; line-height: 1.5; color: var(--text-muted, #617580); padding: 8px 16px 0; }
.project-showcase .pcard__body { display: flex; flex-direction: column; align-items: flex-start; }
.project-showcase .pcard__title a { color: inherit; text-decoration: none; }
.project-showcase .pcard__title a:hover { color: var(--brand-700); }
.project-showcase__location { color: #617580; margin: 8px 0 16px; font-size: 14px; }
.project-showcase__facts { width: 100%; margin: 0; font-size: 14px; }
.project-showcase__facts > div { display: flex; justify-content: space-between; gap: 16px; padding: 7px 0; border-bottom: 1px solid #e2e8ec; }
.project-showcase__facts dt { color: #617580; }
.project-showcase__facts dd { margin: 0; text-align: right; max-width: 60%; }
.project-showcase__equipment-label { font-weight: 600; font-size: 13px; margin: 18px 0 6px; }
.project-showcase__link { display: inline-block; font-weight: 600; margin-top: 18px; }
.project-showcase__grid--spotlight .project-showcase__card { display: grid; grid-template-columns: 1fr 1fr; align-items: start; }
@media (max-width: 1024px) { .project-showcase__grid { gap: 20px; } }
@media (max-width: 768px) { .project-showcase__grid, .project-showcase__grid--spotlight .project-showcase__card { grid-template-columns: 1fr; } }

/* Architecture: compact navigation; retain existing page layouts. */
.architecture-breadcrumb { padding-top: 16px; padding-bottom: 16px; margin-top: 0; margin-bottom: 0; flex-wrap: wrap; overflow-wrap: anywhere; }
.architecture-reading { display: flex; flex-wrap: wrap; gap: 12px 28px; padding-top: 24px; padding-bottom: 24px; }
.architecture-reading a { max-width: 100%; overflow-wrap: anywhere; }

/* Keep article tables and long technical links inside the mobile reading column. */
.article-layout > .article, .article-layout > .article-sidebar { min-width: 0; }
.article__body { overflow-wrap: anywhere; }
@media (max-width: 767px) { .article__body table { display: block; max-width: 100%; overflow-x: auto; } }

/* Reuse the original geometric fish and wordmark in white only in the footer. */
.site-footer__logo .site-logo { display: inline-block; }
.site-footer__logo .site-logo__img { width: 180px; max-width: 100%; height: auto; filter: brightness(0) invert(1); }

.home-v4 .home-system__link { display: block; color: inherit; text-decoration: none; }
.home-v4 .home-system__link:hover .home-system__equipment { text-decoration: underline; }

/* Homepage: native, linked project carousel. */
.home-v4 .home-projects__track { display: grid; grid-auto-flow: column; grid-auto-columns: calc((100% - 48px) / 3); gap: 24px; overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none; padding: 4px 0 12px; margin-top: 36px; }
.home-v4 .home-projects__slide { min-width: 0; scroll-snap-align: start; }
.home-v4 .home-projects__link { display: block; color: var(--ink-900); text-decoration: none; }
.home-v4 .home-projects__link h3 { margin: 16px 0 0; font-size: 1rem; line-height: 1.45; }
.home-v4 .home-projects__link:hover h3 { color: var(--brand-700); text-decoration: underline; }
.home-v4 .home-projects__link:focus-visible { outline-offset: -3px; }
.home-v4 .home-projects__actions { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; margin-top: 20px; }
@media (max-width: 1000px) { .home-v4 .home-projects__track { grid-auto-columns: calc((100% - 24px) / 2); } }
@media (max-width: 640px) { .home-v4 .home-projects__track { grid-auto-columns: 100%; } }

/* Large side arrows keep the project images and links unobstructed. */
.home-v4 .home-projects__frame { position: relative; margin-top: 36px; }
.home-v4 .home-projects__frame .home-projects__track { margin-top: 0; }
.home-v4 .home-projects__arrow { position: absolute; z-index: 2; top: var(--project-arrow-top, 40%); transform: translateY(-50%); display: grid; place-items: center; width: 64px; height: 72px; border: 0; border-radius: 0; padding: 0; background: transparent; color: var(--brand-700); line-height: 1; box-shadow: none; cursor: pointer; }
.home-v4 .home-projects__arrow--prev { left: 8px; }
.home-v4 .home-projects__arrow--next { right: 8px; }
.home-v4 .home-projects__arrow:disabled { opacity: .45; cursor: default; }
.home-v4 .home-projects__arrow[hidden] { display: none; }
@media (max-width: 640px) { .home-v4 .home-projects__arrow { width: 56px; height: 72px; } }

.home-v4 .home-projects__arrow svg { display: block; width: 42px; height: 63px; fill: currentColor; stroke: #fff; stroke-width: 1.2; stroke-linejoin: round; }
.home-v4 .home-projects__arrow--next svg { transform: rotate(180deg); }

.home-v4 .home-projects__track::-webkit-scrollbar { display: none; }

.home-v4 .home-capabilities__about-link { display: block; }

/* Keep homepage introductions from leaving isolated words on desktop. */
.home-v4 .home-requirements > .container > .section__lead,
.home-v4 .home-solutions > .container > .section__lead,
.home-v4 .home-capabilities .home-visits__lead { max-width: 960px; }

.home-v4 .home-equipment-links__row { display: block; }
.home-v4 .home-equipment-links__row + .home-equipment-links__row { margin-top: 1em; }

/* Inner-page banners share the same non-tiling image behavior. */
.hero.hero--page { background-size: cover; background-position: center; background-repeat: no-repeat; }

/* One breadcrumb type scale and alignment across archives and detail pages. */
.site-main .container.breadcrumb {
  display: flex; flex-wrap: wrap; align-items: baseline; gap: 8px;
  font-family: var(--font-body); font-size: .85rem; font-weight: 400; line-height: 1.6;
  padding: 16px 20px 8px; margin-top: 0; margin-bottom: 0;
  color: var(--gray-600); overflow-wrap: anywhere;
}
.site-main .breadcrumb > * { font: inherit; min-width: 0; }
.site-main .breadcrumb span[aria-hidden] { margin: 0; }
/* Halve each page's former breadcrumb-to-content spacing. */
.site-main .breadcrumb + .section { padding-top: 32px; }
.site-main.project-pages .breadcrumb + #selected-projects { padding-top: 32px; }
.site-main .breadcrumb + .container.section { padding-top: 34px; }
.site-main .breadcrumb + .blog-home__intro { padding-top: 14px; }
.site-main .breadcrumb + .article-layout { padding-top: 6px; }
.site-main .breadcrumb + .project-detail-hero { padding-top: 10px; }
.site-main .breadcrumb + .p-hero { padding-top: 26px; }
@media (max-width: 640px) {
  .site-main .breadcrumb + .section { padding-top: 24px; }
  .site-main.project-pages .breadcrumb + #selected-projects { padding-top: 24px; }
  .site-main .breadcrumb + .container.section { padding-top: 26px; }
  .site-main .breadcrumb + .blog-home__intro { padding-top: 10px; }
}

.mod-grid .mod-grid__product-link { display: block; color: inherit; text-decoration: none; }
.mod-grid .mod-grid__product-link:hover .card__title { color: var(--brand-600); text-decoration: underline; }
.mod-grid .mod-grid__product-link:focus-visible { outline: 2px solid var(--brand-600); outline-offset: 4px; }

.capacity .capacity__project-link { color: inherit; text-decoration: none; }
.capacity .capacity__project-link:hover .capacity__name { color: var(--brand-600); text-decoration: underline; }
.capacity .capacity__project-link:focus-visible { outline: 2px solid var(--brand-600); outline-offset: 4px; }

/* Featured project references: open cards with separators between columns. */
.project-showcase__card {
  position: relative; border: 0; border-radius: 0; box-shadow: none; overflow: visible;
}
.project-showcase__card + .project-showcase__card::before {
  content: ""; position: absolute; top: 0; bottom: 0; left: -14px;
  width: 1px; background: var(--gray-200); pointer-events: none;
}
@media (max-width: 1024px) {
  .project-showcase__card + .project-showcase__card::before { left: -10px; }
}
@media (max-width: 768px) {
  .project-showcase__card + .project-showcase__card::before { display: none; }
}

.project-showcase__card { background: transparent; }

.contact-page .contact-map.contact-map--google { display: block; min-width: 0; padding: 0; border: 0; background: transparent; text-align: left; }
.contact-map--google iframe { display: block; width: 100%; max-width: 100%; height: 340px; border: 0; }
.contact-page .contact-map--google .contact-map__note { font-size: 12px; margin: 12px 0 8px; }

/* Home facilities: full original photos with readable copy below. */
.home-v4 .home-facilities > article { display: flex; flex-direction: column; }
.home-v4 .home-facilities .home-facilities__media { aspect-ratio: 16 / 9; flex-shrink: 0; padding: 0; background: transparent; }
.home-v4 .home-facilities .home-facilities__media img { display: block; width: 100%; height: 100%; object-fit: contain; }
.home-v4 .home-facilities .home-facilities__body { padding: 20px 0 0; }
.home-v4 .home-facilities .home-facilities__body h3 { margin: 0 0 8px; color: var(--home-dark); font-family: var(--font-heading); font-size: 1.2rem; line-height: 1.4; font-weight: 600; }
.home-v4 .home-facilities .home-facilities__body p { margin: 0; color: var(--home-muted); font-size: .95rem; line-height: 1.65; }
@media (max-width: 900px) {
  .home-v4 .home-facilities { grid-template-columns: 1fr; }
  .home-v4 .home-facilities .home-facilities__body h3 { font-size: 1.1rem; }
}

/* Chinese typography: retain original sizes and layout. */
:root{--font-heading:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;--font-body:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;}

/* Keep long Chinese hero copy readable over bright photos on phones. */
@media (max-width: 640px) {
    .hero--page:not(.hero--projects)::before {
        content: "";
        position: absolute;
        inset: 0;
        background: rgba(6, 22, 32, 0.55);
        pointer-events: none;
    }
    .hero--page .hero__inner { position: relative; z-index: 1; }
    .hero--page .hero__lead { color: #fff; }
}

/* Blog mobile contact shortcuts: keep reading space clear. */
@media screen and (max-width: 900px) {
  .single-post .floating-contact {
    position: static;
    width: fit-content;
    margin: 20px auto;
    flex-direction: row;
  }
  .single-post .floating-contact .wechat-contact-panel {
    right: auto;
    left: 50%;
    bottom: calc(100% + 12px);
    transform: translateX(-50%);
  }
}

/* Hide the empty Blog cover fallback; keep real cover images unchanged. */
.single-post .article__cover.media-ph { display: none; }