/* ============================================================
   ChemGreen · 主样式
   依据 DESIGN.md：深林绿 #14532D / 叶青 #2E8B57 / 湖水 #A8D5BA
   雾白 #F5F8F4 / 炭墨 #1F2A24 / 琥珀 #C8902F（仅限 CTA）
   ============================================================ */

:root {
	--clr-pine:  #14532D;
	--clr-pine-2:#0E3D20;
	--clr-leaf:  #2E8B57;
	--clr-lake:  #A8D5BA;
	--clr-mist:  #F5F8F4;
	--clr-ink:   #1F2A24;
	--clr-amber: #C8902F;
	--clr-amber-2:#B07E22;
	--clr-line:  rgba(20, 83, 45, 0.10);
	--radius:    10px;
	--shadow:    0 10px 30px rgba(20, 83, 45, 0.08);
	--font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, "Segoe UI", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 96px; overflow-x: hidden; }

body {
	margin: 0;
	font-family: var(--font);
	color: var(--clr-ink);
	background: var(--clr-mist);
	line-height: 1.7;
	-webkit-font-smoothing: antialiased;
	overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--clr-leaf); text-decoration: none; transition: color .2s; }
a:hover { color: var(--clr-pine); }
h1, h2, h3, h4 { margin: 0 0 .5em; color: var(--clr-pine); font-weight: 800; letter-spacing: -0.01em; line-height: 1.25; }

.container { width: min(1200px, 92vw); margin: 0 auto; }

/* ---------- 按钮 ---------- */
.btn {
	display: inline-flex; align-items: center; justify-content: center; gap: 8px;
	padding: 10px 22px; border-radius: 999px; font-weight: 700; font-size: 15px;
	border: 2px solid transparent; cursor: pointer; transition: all .25s; white-space: nowrap;
}
.btn-amber { background: linear-gradient(135deg, var(--clr-amber), var(--clr-amber-2)); color: #fff; }
.btn-amber:hover { transform: translateY(-2px) scale(1.02); box-shadow: 0 8px 20px rgba(200, 144, 47, .35); color: #fff; }
.btn-outline { border-color: var(--clr-leaf); color: var(--clr-leaf); background: transparent; }
.btn-outline:hover { background: var(--clr-leaf); color: #fff; transform: translateY(-2px); }
.btn-ghost { border-color: rgba(255,255,255,.55); color: #fff; background: rgba(255,255,255,.08); backdrop-filter: blur(4px); }
.btn-ghost:hover { background: rgba(255,255,255,.2); color: #fff; }
.btn-lg { padding: 14px 32px; font-size: 17px; }
.btn-sm { padding: 6px 16px; font-size: 13px; }

/* Hero 主按钮（电话咨询）：更大更亮，金色质感 + 微光 */
.btn-hero-primary {
	padding: 17px 44px; font-size: 18px; letter-spacing: .02em;
	background: linear-gradient(135deg, #E3B95B 0%, var(--clr-amber) 55%, #A87E20 100%);
	color: #fff; border: 0;
	box-shadow: 0 10px 30px rgba(168, 126, 32, .5), inset 0 1px 0 rgba(255,255,255,.35);
}
.btn-hero-primary:hover {
	transform: translateY(-3px) scale(1.04);
	box-shadow: 0 16px 40px rgba(168, 126, 32, .6), inset 0 1px 0 rgba(255,255,255,.35);
	color: #fff;
}
.btn-hero-primary:active { transform: translateY(0) scale(.99); }

/* Hero 次按钮（浏览产品） */
.btn-hero-secondary {
	padding: 10px 26px; font-size: 15px;
	border: 2px solid rgba(255,255,255,.6); color: #fff; background: rgba(255,255,255,.06);
	backdrop-filter: blur(4px);
}
.btn-hero-secondary:hover {
	background: #fff; color: var(--clr-pine); border-color: #fff;
	transform: translateY(-2px);
}

/* ---------- 顶栏（精简：仅热线） ---------- */
.site-topbar { background: var(--clr-pine-2); color: rgba(255,255,255,.85); font-size: 14px; }
.topbar-inner { display: flex; justify-content: center; align-items: center; min-height: 40px; }
.topbar-tel { color: rgba(255,255,255,.9); font-weight: 600; letter-spacing: .03em; }
.topbar-tel:hover { color: #fff; }
.topbar-tel strong { color: #F3C96B; font-size: 15.5px; font-weight: 800; }

/* ---------- 导航 ---------- */
.site-header {
	position: sticky; top: 0; z-index: 100;
	background: rgba(245, 248, 244, .88); backdrop-filter: blur(10px);
	border-bottom: 1px solid var(--clr-line);
}
.header-inner { display: flex; align-items: center; gap: 28px; min-height: 72px; }
.site-brand { display: flex; align-items: center; }

/* 自定义 Logo：限制尺寸，自适应保持比例，不撑高页眉 */
.custom-logo-link { display: inline-flex; align-items: center; line-height: 0; }
.site-brand img.custom-logo {
	max-height: 56px;
	max-width: 240px;
	width: auto;
	height: auto;
}
.site-brand-name { display: inline-flex; align-items: center; gap: 10px; color: var(--clr-pine); font-weight: 800; font-size: 19px; }
.brand-mark { color: var(--clr-leaf); display: inline-flex; }
.site-nav { flex: 1; }
.nav-list { display: flex; gap: 6px; list-style: none; margin: 0; padding: 0; }
.nav-list a { display: block; padding: 8px 16px; color: var(--clr-ink); font-weight: 600; border-radius: 999px; }
.nav-list a:hover { color: var(--clr-pine); background: rgba(46, 139, 87, .08); }
.nav-list .current-menu-item a, .nav-list .current_page_item a { color: var(--clr-pine); background: rgba(46, 139, 87, .10); }
.header-actions { display: flex; align-items: center; gap: 14px; }

/* 语言切换：简洁文本样式（中文 | English） */
.lang-switch { display: flex; align-items: center; gap: 10px; font-size: 13.5px; }
.lang-switch a { color: #6a7b70; font-weight: 600; padding: 4px 2px; border-radius: 4px; }
.lang-switch a:hover { color: var(--clr-leaf); }
.lang-switch a.is-current { color: var(--clr-pine); font-weight: 800; }
.lang-switch .lang-sep { color: #b6c2ba; font-weight: 400; }

.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 6px; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--clr-pine); margin: 5px 0; border-radius: 2px; transition: .25s; }

/* ---------- Hero ---------- */
.hero { position: relative; min-height: min(82vh, 760px); display: flex; align-items: center; overflow: hidden; }

/* 轮播容器 */
.hero-slider { position: absolute; inset: 0; }
.hero-slide { position: absolute; inset: 0; opacity: 0; transition: opacity 1.1s ease; }
.hero-slide.is-active { opacity: 1; }
.hero-slide img { width: 100%; height: 100%; object-fit: cover; }

.hero-overlay { position: absolute; inset: 0; background: linear-gradient(100deg, rgba(9, 40, 22, .86) 0%, rgba(14, 61, 32, .58) 45%, rgba(14, 61, 32, .18) 100%); }
.hero-content {
	position: relative; z-index: 2; padding: 100px 0 92px;
	max-width: 880px; margin: 0 auto; text-align: center;
}
.hero-eyebrow {
	color: #B7E0C8; letter-spacing: .24em; text-transform: uppercase; font-size: 13px; font-weight: 700;
	margin: 0 0 18px; text-shadow: 0 1px 8px rgba(0,0,0,.4);
}
.hero-title {
	color: #fff; font-size: clamp(2.6rem, 6.5vw, 4.4rem); font-weight: 800;
	letter-spacing: .01em; margin-bottom: 16px;
	text-shadow: 0 2px 6px rgba(0,0,0,.35), 0 6px 28px rgba(0,0,0,.28), 0 0 44px rgba(183,224,200,.18);
}
.hero-sub {
	color: rgba(255,255,255,.9); font-size: clamp(1.05rem, 2.2vw, 1.3rem);
	margin: 0 auto 38px; max-width: 640px;
	text-shadow: 0 1px 10px rgba(0,0,0,.35);
}
.hero-actions { display: flex; gap: 20px; flex-wrap: wrap; justify-content: center; align-items: center; }

/* 轮播指示点 */
.hero-dots { display: flex; gap: 10px; justify-content: center; margin-top: 34px; }
.hero-dots .dot {
	width: 10px; height: 10px; border-radius: 999px; border: 0; padding: 0; cursor: pointer;
	background: rgba(255,255,255,.4); transition: all .3s;
}
.hero-dots .dot.is-active { background: #fff; width: 26px; }
.hero-dots .dot:hover { background: rgba(255,255,255,.8); }

/* ---------- 波浪分隔（签名元素） ---------- */
.chem-wave { line-height: 0; margin-top: -1px; }
.chem-wave svg { display: block; width: 100%; height: 48px; }

/* ---------- Section 通用 ---------- */
.section { position: relative; padding: clamp(3.2rem, 8vw, 6rem) 0; overflow-x: clip; }
.section-head { margin-bottom: 2.2rem; }
.section-title { font-size: clamp(1.6rem, 3.4vw, 2.3rem); margin-bottom: 6px; }
.section-sub { color: #5a6b61; margin: 0; }
.eyebrow { color: var(--clr-leaf); font-size: 12px; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; margin: 0 0 10px; }

/* ---------- 公司背景 ---------- */
.about-grid { display: grid; grid-template-columns: 3fr 2fr; gap: clamp(2rem, 5vw, 4rem); align-items: center; }
.about-media img, .about-media { width: 100%; border-radius: var(--radius); }
.about-desc { color: #4a5a51; margin: 0 0 1.2rem; }
.about-points { list-style: none; padding: 0; margin: 0 0 1.6rem; }
.about-points li { padding: 6px 0 6px 28px; position: relative; color: #33423a; }
.about-points li::before {
	content: ""; position: absolute; left: 4px; top: 13px; width: 10px; height: 10px;
	border-radius: 50%; background: radial-gradient(circle at 35% 35%, #cdeedd, var(--clr-leaf));
}
/* 公司背景：数据指标条（右栏下方，填充留白） */
.about-stats {
	list-style: none; padding: 0; margin: 1.8rem 0 0;
	display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px 18px;
	border-top: 1px solid var(--clr-line); padding-top: 1.4rem;
}
.about-stats li { display: flex; align-items: baseline; gap: 10px; }
.about-stats strong {
	font-size: 26px; font-weight: 800; color: var(--clr-pine);
	font-variant-numeric: tabular-nums; letter-spacing: -0.02em;
}
.about-stats span { color: #6a7a70; font-size: 13.5px; font-weight: 600; }
/* 公司背景：底部分子链引导装饰 */
.about-guide {
	position: relative; width: min(1200px, 92vw); margin: clamp(1.6rem, 3vw, 2.4rem) auto 0;
}
.about-guide svg { width: 100%; height: auto; display: block; }
.about-guide-arrow {
	position: absolute; right: 0; bottom: 8px; color: var(--clr-leaf);
	animation: aboutGuidePulse 2.2s ease-in-out infinite;
}
@keyframes aboutGuidePulse {
	0%, 100% { transform: translateY(0); opacity: .55; }
	50% { transform: translateY(6px); opacity: 1; }
}
@media (prefers-reduced-motion: reduce) {
	.about-guide-arrow { animation: none; }
}

/* 区块分隔装饰：横向线条 + 六边形（填充区块间空白） */
.sec-divider {
	display: flex; align-items: center; justify-content: center; gap: 18px;
	width: min(1200px, 92vw); margin: 0 auto; padding: 6px 0 0;
}
.sec-divider-line { height: 1px; flex: 1; max-width: 220px; background: linear-gradient(90deg, transparent, rgba(46,139,87,.28)); }
.sec-divider-line:last-child { background: linear-gradient(90deg, rgba(46,139,87,.28), transparent); }
.sec-divider-hex { width: 46px; flex-shrink: 0; }

/* 产品网格两侧空白点缀（3+2 布局第二行两侧） */
.deco-grid-side { position: absolute; pointer-events: none; z-index: 0; line-height: 0; opacity: .8; }
.deco-grid-side svg { width: 100%; height: auto; display: block; }
.deco-grid-side-l { left: 0; bottom: 6%; width: clamp(140px, 16vw, 230px); transform: rotate(12deg); }
.deco-grid-side-r { right: 0; bottom: 4%; width: clamp(150px, 18vw, 250px); }

/* ---------- 产品网格（淘宝式） ---------- */
.p-grid { display: grid; gap: 22px; }
.p-grid.cols-4 { grid-template-columns: repeat(4, 1fr); }
/* 3 列网格：5 个产品呈 3+2，第二行居中均匀分布 */
.p-grid.cols-3 { display: flex; flex-wrap: wrap; gap: 22px; justify-content: center; }
.p-grid.cols-3 .p-card { width: calc((100% - 44px) / 3); }
.p-card { background: #fff; border: 1px solid var(--clr-line); border-radius: var(--radius); overflow: hidden; transition: transform .25s, box-shadow .25s; display: flex; flex-direction: column; }
.p-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.p-card-media { position: relative; display: block; aspect-ratio: 1 / 1; overflow: hidden; background: #EDF3EE; }
.p-card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.p-card:hover .p-card-media img { transform: scale(1.04); }
.p-card-stock { display: inline-flex; align-items: center; padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 700; color: #fff; white-space: nowrap; }
.p-card-stock.is-stock { background: var(--clr-leaf); }
.p-card-stock.is-inquiry { background: #8B9B92; }
.p-card-body { padding: 14px 16px 16px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.p-card-title { font-size: 15.5px; margin: 0; }
.p-card-title a { color: var(--clr-ink); }
.p-card-title a:hover { color: var(--clr-pine); }
.p-card-meta { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; }
.p-card-price { color: var(--clr-amber); font-weight: 800; font-size: 16px; font-variant-numeric: tabular-nums; }
.p-card-spec { color: #7a8a80; font-size: 12.5px; }
.p-card-foot { margin-top: auto; display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.p-card-foot .btn { margin-top: 0; }

/* ---------- 产品属性导览：筛选 chips + 卡片徽章 ---------- */
.p-filter { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; margin: 0 0 28px; }
.p-filter-chip {
	border: 2px solid var(--clr-line); background: #fff; color: var(--clr-ink);
	padding: 10px 22px; border-radius: 999px; font-size: 15px; font-weight: 700;
	cursor: pointer; transition: background .18s, color .18s, border-color .18s, box-shadow .18s, transform .15s;
	line-height: 1.4; display: inline-flex; align-items: center; gap: 7px;
}
.p-filter-chip:hover { border-color: var(--clr-leaf); color: var(--clr-pine); transform: translateY(-1px); }
.p-filter-chip.is-active {
	background: var(--clr-pine); border-color: var(--clr-pine); color: #fff;
	box-shadow: 0 6px 16px rgba(20, 83, 45, .28);
}
.p-filter-chip .chip-dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.p-filter-chip[data-filter="heat"] .chip-dot { background: var(--clr-amber); }
.p-filter-chip[data-filter="water"] .chip-dot { background: #4DA6E0; }
.p-filter-chip[data-filter="film"] .chip-dot { background: #7A5CC4; }
.p-filter-chip[data-filter="all"] .chip-dot { background: var(--clr-leaf); }
.p-filter-chip.is-active .chip-dot { background: #fff; }
/* 无匹配提示 */
.p-filter-empty {
	display: none; text-align: center; color: #7a8a80; font-size: 14px;
	padding: 8px 0 4px; margin: 0;
}
.p-filter-empty.is-visible { display: block; }
/* 卡片属性徽章：实底醒目 */
.p-card-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 2px; }
.p-tag {
	display: inline-flex; align-items: center; gap: 5px; padding: 4px 11px; border-radius: 999px;
	font-size: 12px; font-weight: 700; letter-spacing: .02em; line-height: 1.4; white-space: nowrap;
	color: #fff;
}
.p-tag::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: rgba(255,255,255,.85); flex-shrink: 0; }
.p-tag--heat  { background: #C8902F; }
.p-tag--water { background: #2E8B57; }
.p-tag--film  { background: #14532D; }
/* 筛选时被隐藏的卡片 */
.p-card.is-filtered-out { display: none; }

/* ---------- 电话条（签名元素） ---------- */
.cta-phone {
	background: linear-gradient(120deg, #A87E20 0%, var(--clr-amber) 55%, #D9A94B 100%);
	padding: clamp(1.1rem, 2.4vw, 1.6rem) 0; color: #fff;
	position: relative; z-index: 2;
	box-shadow: 0 18px 44px rgba(28, 46, 18, .30); /* 悬浮在页脚之上 */
}
.cta-phone-inner {
	display: flex; flex-direction: column; align-items: center; text-align: center;
	gap: 12px;
}
.cta-phone-text h2 { color: #fff; font-size: clamp(1.2rem, 2.8vw, 1.7rem); margin-bottom: 4px; }
.cta-phone-text p { margin: 0; color: rgba(255,255,255,.88); font-size: 14px; }
.cta-phone-number {
	display: inline-flex; align-items: center; gap: 10px; padding: 12px 26px;
	background: #fff; color: #8A641C; border-radius: 999px; font-size: clamp(1.2rem, 2.8vw, 1.55rem);
	font-weight: 900; font-variant-numeric: tabular-nums; letter-spacing: .02em;
	box-shadow: 0 8px 22px rgba(90, 60, 10, .25); transition: transform .2s, box-shadow .2s;
}
.cta-phone-number:hover { transform: scale(1.03); color: #6E4E12; box-shadow: 0 10px 26px rgba(90, 60, 10, .32); }
/* CTA 电话条：白色分子链背景装饰 */
.cta-mol { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
.cta-mol svg { position: absolute; width: 100%; height: 100%; opacity: .5; }

/* ---------- 页面头（内页） ---------- */
.page-hero { background: linear-gradient(120deg, var(--clr-pine) 0%, var(--clr-pine-2) 100%); color: #fff; padding: clamp(3rem, 7vw, 5rem) 0 2.6rem; position: relative; overflow: hidden; }
.page-hero .page-title { color: #fff; font-size: clamp(1.8rem, 4vw, 2.6rem); margin-bottom: 8px; }
.page-hero .eyebrow { color: #B7E0C8; }
.page-intro { color: rgba(255,255,255,.85); max-width: 720px; }
/* 内页 page-hero：苯环分子装饰 */
.page-hero-mol { position: absolute; inset: 0; pointer-events: none; }
.page-hero-ring { position: absolute; right: 4%; top: 50%; transform: translateY(-50%); width: clamp(180px, 24vw, 300px); opacity: .7; }
.page-hero .container { position: relative; z-index: 1; }

/* ---------- 面包屑 ---------- */
.crumb { padding: 18px 0 0; font-size: 13.5px; color: #7a8a80; }
.crumb a { color: #7a8a80; }
.crumb a:hover { color: var(--clr-leaf); }
.crumb-sep { margin: 0 8px; color: #b6c2ba; }

/* ---------- 产品信息页 ---------- */
.pd-top { padding-top: clamp(1.4rem, 4vw, 2.6rem); }
.pd-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 5vw, 3.6rem); align-items: start; }
.pd-main-img { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--clr-line); background: #EDF3EE; aspect-ratio: 1/1; }
.pd-main-img img { width: 100%; height: 100%; object-fit: cover; }
.pd-thumbs { display: flex; gap: 10px; margin-top: 12px; flex-wrap: wrap; }
.pd-thumb { width: 76px; height: 76px; border-radius: 8px; overflow: hidden; border: 2px solid transparent; padding: 0; cursor: pointer; background: #EDF3EE; }
.pd-thumb img { width: 100%; height: 100%; object-fit: cover; }
.pd-thumb.is-active { border-color: var(--clr-leaf); }
.pd-title { font-size: clamp(1.6rem, 3.4vw, 2.2rem); }
.pd-intro { color: #4a5a51; margin: 0 0 1.4rem; }
.info-table { width: 100%; border-collapse: collapse; margin-bottom: 1.6rem; }
.info-table th { text-align: left; width: 96px; color: #6a7b70; font-weight: 600; font-size: 14px; padding: 9px 0; vertical-align: top; }
.info-table td { padding: 9px 0; font-weight: 600; }
.info-table .pd-price { color: var(--clr-amber); font-weight: 800; font-size: 19px; }
.pd-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 12px; }
.pd-note { color: #8b9b92; font-size: 12.5px; margin: 0; }

/* 视频展位 */
.video-stage { border-radius: var(--radius); overflow: hidden; background: var(--clr-pine); }
.video-frame, .video-frame iframe, .video-frame video {
	width: 100%; aspect-ratio: 16/9; display: block; border: 0;
}
.video-frame video { object-fit: contain; background: #000; }
.video-placeholder { aspect-ratio: 16/9; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 14px; color: rgba(255,255,255,.85); text-align: center; padding: 20px; }
.video-play { width: 84px; height: 84px; border-radius: 50%; background: rgba(255,255,255,.14); display: flex; align-items: center; justify-content: center; color: #fff; }
.video-placeholder p { margin: 0; }
/* 多视频网格：主视频占满整行，附加视频 2 列等宽（竖屏视频展窗 9:16） */
.video-stage.has-more { margin-bottom: 16px; }
.video-stage.has-more .video-frame, .video-stage.has-more .video-frame iframe, .video-stage.has-more .video-frame video { aspect-ratio: 16/7.5; }
.video-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.video-grid-item { border-radius: var(--radius); overflow: hidden; background: var(--clr-pine); }
.video-grid-item iframe, .video-grid-item video { width: 100%; aspect-ratio: 9/16; display: block; border: 0; }
.video-grid-item video { object-fit: contain; background: #000; }
@media (max-width: 640px) { .video-grid { grid-template-columns: 1fr; } }

/* 参数表 */
.params-layout { display: grid; grid-template-columns: 3fr 2fr; gap: clamp(1.6rem, 4vw, 3rem); align-items: start; }
/* 防止表格 min-content 撑破 grid 列导致横向滚动条 */
.params-layout > * { min-width: 0; }
.params-table { width: 100%; min-width: 0; border-collapse: collapse; background: #fff; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--clr-line); }
.params-table th, .params-table td { padding: 12px 18px; font-size: 14.5px; text-align: left; }
.params-table th { color: var(--clr-pine); font-weight: 700; width: 40%; background: rgba(46, 139, 87, .06); }
.params-table td { border-left: 1px solid var(--clr-line); }
.params-table tr + tr { border-top: 1px solid var(--clr-line); }
.params-table .is-even th { background: rgba(46, 139, 87, .03); }
.params-figure img { width: 100%; border-radius: var(--radius); border: 1px solid var(--clr-line); aspect-ratio: 4/3; object-fit: cover; }

/* 场景图 */
.scene-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.scene-item { margin: 0; }
.scene-item img { width: 100%; aspect-ratio: 3/2; object-fit: cover; border-radius: var(--radius); border: 1px solid var(--clr-line); }

/* 文档 */
.doc-list { display: grid; gap: 10px; }
.doc-item { display: flex; align-items: center; gap: 14px; background: #fff; border: 1px solid var(--clr-line); border-radius: var(--radius); padding: 12px 18px; transition: box-shadow .2s, transform .2s; }
.doc-item:hover { box-shadow: var(--shadow); transform: translateX(3px); }
.doc-icon { color: var(--clr-leaf); display: inline-flex; }
.doc-name { flex: 1; color: var(--clr-ink); font-weight: 600; }
.doc-empty { color: #8b9b92; font-style: italic; }
.doc-group { margin-bottom: 2.6rem; }
.doc-group-head { display: flex; align-items: baseline; gap: 14px; margin-bottom: 12px; }
.doc-group-title { font-size: 1.25rem; margin: 0; }
.doc-group-title a { color: var(--clr-pine); }
.doc-group-count { color: #8b9b92; font-size: 13px; }

/* 应用页 */
.app-block { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(1.8rem, 5vw, 3.4rem); align-items: center; margin-bottom: clamp(2.6rem, 6vw, 4rem); }
.app-block.is-reverse .app-media { order: 2; }
.app-media img { width: 100%; aspect-ratio: 3/2; object-fit: cover; border-radius: var(--radius); border: 1px solid var(--clr-line); }
.app-title { font-size: 1.5rem; margin-bottom: 8px; }
.app-title a { color: var(--clr-pine); }
.app-desc { color: #4a5a51; margin: 0 0 1.2rem; }

/* ---------- 回到顶部（右下角悬浮，不占版面） ---------- */
.back-to-top {
	position: fixed; right: 24px; bottom: 24px; z-index: 90;
	width: 46px; height: 46px; border-radius: 50%; border: 1px solid rgba(255,255,255,.2); cursor: pointer;
	background: rgba(20, 83, 45, .86); backdrop-filter: blur(4px); color: #fff;
	display: flex; align-items: center; justify-content: center;
	box-shadow: 0 8px 24px rgba(0, 0, 0, .3);
	opacity: 0; visibility: hidden; transform: translateY(12px);
	transition: all .3s ease;
}
.back-to-top.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { background: var(--clr-leaf); transform: translateY(-3px); box-shadow: 0 12px 30px rgba(0, 0, 0, .35); }
.back-to-top:active { transform: translateY(0); }
@media (max-width: 768px) {
	.back-to-top { right: 14px; bottom: 16px; width: 40px; height: 40px; }
}

/* ---------- 页脚 ---------- */
.site-footer {
	background-color: var(--clr-pine);
	background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='60' viewBox='0 0 240 60'%3E%3Cpath d='M0 30 Q 30 10 60 30 T 120 30 T 180 30 T 240 30' fill='none' stroke='rgba(255,255,255,0.045)' stroke-width='1.2'/%3E%3Cpath d='M0 42 Q 30 24 60 42 T 120 42 T 180 42 T 240 42' fill='none' stroke='rgba(255,255,255,0.028)' stroke-width='1'/%3E%3C/svg%3E");
	color: rgba(255,255,255,.82);
	border-top: 1px solid rgba(255,255,255,.14); /* 与黄色 CTA 区之间的半透明分割线 */
}
.site-footer .chem-wave svg { transform: rotate(180deg); }
.footer-inner { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 3rem; padding: clamp(1.3rem, 3vw, 2rem) 0; }
.footer-name { color: #fff; font-size: 1.35rem; margin-bottom: 6px; }
.footer-slogan { color: rgba(255,255,255,.65); margin: 0; }
.site-footer h4 { color: #B7E0C8; font-size: 14px; letter-spacing: .08em; margin-bottom: 18px; }
.footer-tel a { color: #F3C96B; font-size: 1.25rem; font-weight: 800; }
.footer-tel a:hover { color: #fff; }
.footer-addr {
	color: rgba(255,255,255,.72); font-size: 14.5px; font-weight: 500;
	line-height: 1.9; margin-top: 4px;
}
.footer-nav { list-style: none; margin: 0; padding: 0; }
.footer-nav li { margin-bottom: 9px; }
.footer-nav a { color: rgba(255,255,255,.78); font-size: 14px; }
.footer-nav a:hover { color: #F3C96B; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.18); padding: 20px 0; }
.footer-bottom p { margin: 0; font-size: 13.5px; color: rgba(255,255,255,.62); text-align: center; }
.footer-bottom .footer-icp { margin-top: 6px; font-size: 12.5px; }
.footer-bottom a { color: rgba(255,255,255,.62); text-decoration: none; }
.footer-bottom a:hover { color: #A8D5BA; text-decoration: underline; }

/* ---------- 通用内容排版 ---------- */
.entry-content h1, .entry-content h2, .entry-content h3 { margin-top: 1.4em; }
.entry-content > * { max-width: 760px; }
.empty-tip { color: #7a8a80; padding: 30px 0; }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
	.p-grid.cols-4 { grid-template-columns: repeat(3, 1fr); }
	.p-grid.cols-3 .p-card { width: calc((100% - 22px) / 2); }
	.params-layout { grid-template-columns: 1fr; }
	.scene-grid { grid-template-columns: repeat(2, 1fr); }
	.pd-grid { grid-template-columns: 1fr; }
	.about-grid { grid-template-columns: 1fr; }
	.app-block, .app-block.is-reverse .app-media { grid-template-columns: 1fr; }
	.app-block { grid-template-columns: 1fr; }
	.app-block.is-reverse .app-media { order: 0; }
}

@media (max-width: 768px) {
	.nav-toggle { display: block; }
	.site-brand img.custom-logo { max-height: 44px; max-width: 180px; }
	.site-nav { position: fixed; top: 108px; left: 0; right: 0; background: rgba(245,248,244,.97); backdrop-filter: blur(12px); border-bottom: 1px solid var(--clr-line); padding: 12px 4vw 20px; transform: translateY(-8px); opacity: 0; pointer-events: none; transition: .25s; }
	.site-nav.is-open { transform: none; opacity: 1; pointer-events: auto; }
	.nav-list { flex-direction: column; gap: 2px; }
	.nav-list a { padding: 12px 14px; }
	.p-grid.cols-4 { grid-template-columns: repeat(2, 1fr); }
	.p-grid.cols-3 .p-card { width: calc((100% - 22px) / 2); }
	.scene-grid { grid-template-columns: 1fr; }
	.cta-phone-inner { flex-direction: column; text-align: center; }
	.footer-inner { grid-template-columns: 1fr; gap: 1.8rem; }
	.header-actions .btn-phone span { display: none; }
	.site-brand-name { font-size: 16px; }
	.header-actions { gap: 8px; }
}

@media (max-width: 480px) {
	.p-grid.cols-4 { grid-template-columns: 1fr; }
	.p-grid.cols-3 .p-card { width: 100%; }
	.hero-actions .btn { width: 100%; }
}

/* 可访问性：键盘焦点可见 */
a:focus-visible, button:focus-visible { outline: 3px solid rgba(46, 139, 87, .5); outline-offset: 2px; }

/* 尊重系统减弱动效 */
@media (prefers-reduced-motion: reduce) {
	html { scroll-behavior: auto; }
	*, *::before, *::after { transition: none !important; animation: none !important; }
}

/* ============================================================
   装饰系统：环保绿色氛围（光晕 / 叶片纹理 / 角落叶片分子 / 漂浮粒子）
   ============================================================ */

/* 全局柔和绿光晕：填掉雾白底上的大块空白 */
body {
	background:
		radial-gradient(1100px 620px at 88% -6%, rgba(168, 213, 186, .30), transparent 62%),
		radial-gradient(860px 520px at -8% 28%, rgba(168, 213, 186, .22), transparent 60%),
		radial-gradient(980px 640px at 112% 68%, rgba(46, 139, 87, .10), transparent 55%),
		radial-gradient(760px 500px at 4% 92%, rgba(168, 213, 186, .18), transparent 60%),
		var(--clr-mist);
}

/* 内容区块：不再平铺叶片，改用分子结构不规则点缀（见下方 .deco-mol） */

/* 分子点缀：散布在区块空白处的化学结构线稿，极淡透明 */
.deco-mol { position: absolute; pointer-events: none; z-index: 0; line-height: 0; opacity: .8; }
.deco-mol svg { width: 100%; height: auto; display: block; }
.mol-ring  { width: 52px; }
.mol-chain { width: 68px; }
.mol-co2   { width: 60px; }
.mol-bond  { width: 42px; }

/* 角落装饰节点（absolute 定位，不参与交互） */
.deco { position: absolute; pointer-events: none; z-index: 0; line-height: 0; }
.deco svg { width: 100%; height: auto; display: block; }
.section > .container { position: relative; z-index: 1; }

.deco-leaf-tl { top: -28px; left: -38px; width: 230px; transform: rotate(-14deg); }
.deco-leaf-tr { top: -24px; right: -36px; width: 200px; transform: rotate(14deg); }
.deco-leaf-bl { bottom: -22px; left: -30px; width: 180px; transform: rotate(160deg); }
.deco-leaf-br { bottom: -26px; right: -36px; width: 210px; transform: rotate(165deg); }
.deco-mol-tr { top: 14px; right: -28px; width: 180px; }
.deco-mol-bl { bottom: 10px; left: -26px; width: 150px; }
.deco-mol-br { bottom: 12px; right: -24px; width: 170px; }

/* Hero 漂浮粒子（叶片 + 光点缓慢上浮） */
.hero-fx { position: absolute; inset: 0; pointer-events: none; z-index: 1; overflow: hidden; }
.hero-fx i { position: absolute; bottom: -70px; display: block; }
.hero-fx .p-leaf {
	width: 34px; height: 34px;
	background: linear-gradient(135deg, rgba(183, 224, 200, .55), rgba(168, 213, 186, .22));
	border-radius: 0 50% 50% 50%;
	box-shadow: inset -4px -4px 8px rgba(20, 83, 45, .12);
	animation: floatUp 16s linear infinite;
}
.hero-fx .p-dot {
	width: 9px; height: 9px; border-radius: 50%;
	background: rgba(255, 255, 255, .30);
	box-shadow: 0 0 12px rgba(255, 255, 255, .30);
	animation: floatUp 20s linear infinite;
}
@keyframes floatUp {
	0%   { transform: translateY(0) rotate(0deg) scale(1); opacity: 0; }
	12%  { opacity: .85; }
	80%  { opacity: .45; }
	100% { transform: translateY(-115vh) rotate(320deg) scale(1.2); opacity: 0; }
}

/* 页脚深色叶片（白色低透明） */
.site-footer { position: relative; overflow: hidden; }
.footer-deco-leaf { position: absolute; top: -30px; right: -40px; width: 240px; pointer-events: none; line-height: 0; z-index: 0; }
.footer-deco-leaf svg { width: 100%; height: auto; display: block; }
.footer-deco-mol { position: absolute; bottom: 40px; left: -20px; width: 220px; pointer-events: none; line-height: 0; z-index: 0; opacity: .7; }
.footer-deco-mol svg { width: 100%; height: auto; display: block; }
.footer-inner { position: relative; z-index: 1; }

/* 移动端：装饰弱化防拥挤 */
@media (max-width: 640px) {
	.deco-leaf-tl, .deco-leaf-tr, .deco-leaf-bl, .deco-leaf-br { width: 120px; }
	.deco-mol-tr, .deco-mol-bl, .deco-mol-br { width: 90px; }
	.hero-fx { opacity: .55; }
}

/* ============================================================
   产品详情页增强：亮点标签 / 特点卡片 / 信任条 / FAQ
   ============================================================ */

/* 信息卡服务亮点标签 */
.pd-badges { list-style: none; margin: 0 0 14px; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.pd-badges li {
	font-size: 12px; font-weight: 700; color: var(--clr-pine);
	background: rgba(46, 139, 87, .08); border: 1px solid rgba(46, 139, 87, .22);
	border-radius: 999px; padding: 4px 12px;
}

/* 产品特点卡片：3 列（5 个卡片呈 3+2 两行，第二行居中均匀分布） */
.feature-grid { display: flex; flex-wrap: wrap; gap: 18px; justify-content: center; }
.feature-col { width: calc((100% - 36px) / 3); }
.feature-card {
	background: #fff; border: 1px solid var(--clr-line); border-radius: var(--radius);
	padding: 22px 18px; display: flex; flex-direction: column; gap: 12px; align-items: flex-start;
	transition: transform .25s, box-shadow .25s;
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.feature-icon {
	width: 48px; height: 48px; border-radius: 14px; display: inline-flex; align-items: center; justify-content: center;
	color: var(--clr-leaf); background: linear-gradient(135deg, rgba(168, 213, 186, .35), rgba(46, 139, 87, .12));
}
.feature-text { font-size: 15px; font-weight: 600; color: var(--clr-ink); line-height: 1.5; }

/* 资质信任条 */
.pd-trust { padding-top: 0; }
.trust-strip {
	display: flex; justify-content: space-between; flex-wrap: wrap; gap: 14px;
	background: #fff; border: 1px solid var(--clr-line); border-radius: var(--radius);
	padding: 18px 26px;
}
.trust-item { display: flex; align-items: center; gap: 10px; color: #4a5a51; font-weight: 600; font-size: 14px; }
.trust-item svg { color: var(--clr-leaf); flex-shrink: 0; }

/* FAQ 手风琴 */
.faq-wrap { max-width: 860px; }
.faq-item {
	background: #fff; border: 1px solid var(--clr-line); border-radius: var(--radius);
	margin-bottom: 12px; overflow: hidden;
}
.faq-item summary {
	cursor: pointer; list-style: none; padding: 16px 22px;
	font-weight: 700; color: var(--clr-pine); font-size: 15.5px;
	display: flex; justify-content: space-between; align-items: center; gap: 12px;
	transition: background .2s;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
	content: "+"; font-size: 20px; font-weight: 400; color: var(--clr-leaf); transition: transform .25s; line-height: 1;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item summary:hover { background: rgba(46, 139, 87, .05); }
.faq-item p { margin: 0; padding: 0 22px 18px; color: #4a5a51; }
.faq-item a { font-weight: 700; }

@media (max-width: 900px) {
	.feature-col { width: calc((100% - 18px) / 2); }
}
@media (max-width: 640px) {
	.feature-col { width: 100%; }
	.trust-strip { flex-direction: column; align-items: flex-start; }
}

/* 特点卡片下方图片位（每列一个，与卡片等宽） */
.feature-col { display: flex; flex-direction: column; gap: 12px; }
.feature-col .feature-card { flex: 1; }
.feature-img { margin: 0; border-radius: var(--radius); overflow: hidden; background: #EDF3EE; aspect-ratio: 4 / 3; }
.feature-img img { width: 100%; height: 100%; object-fit: cover; display: block; }
.feature-img.is-empty {
	border: 1.5px dashed rgba(46, 139, 87, .35); background: rgba(46, 139, 87, .04);
	display: flex; align-items: center; justify-content: center;
}
.feature-img-placeholder { color: #9aab9f; font-size: 13px; letter-spacing: .06em; }

/* ============================================================
   使用指南：说明项 + S 型步骤流程
   ============================================================ */

/* 说明项（喷涂厚度 / 干燥时间 / 稀释比例等）：auto-fit 自动均分撑满整行 */
.guide-notes {
	display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px;
	margin-bottom: 34px;
}
.guide-note {
	background: #fff; border: 1px solid var(--clr-line); border-radius: var(--radius);
	padding: 16px 20px; display: flex; flex-direction: column; gap: 4px;
}
.guide-note-key { font-size: 12.5px; color: #7a8a80; letter-spacing: .04em; }
.guide-note-val { font-size: 16.5px; font-weight: 800; color: var(--clr-pine); }

/* 步骤流程：自动换行网格（无箭头，干净简洁） */
.guide-steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 16px; }
.guide-step {
	position: relative;
	background: #fff; border: 1px solid var(--clr-line); border-radius: var(--radius);
	padding: 14px; display: flex; flex-direction: column; gap: 10px;
}

.guide-step-no {
	position: absolute; top: -11px; left: 14px; z-index: 2;
	width: 24px; height: 24px; border-radius: 50%;
	background: var(--clr-pine); color: #fff; font-size: 13px; font-weight: 800;
	display: inline-flex; align-items: center; justify-content: center;
	box-shadow: 0 2px 6px rgba(20, 83, 45, .35);
}
.guide-step-img { margin: 0; border-radius: 8px; overflow: hidden; background: #EDF3EE; aspect-ratio: 4 / 3; }
.guide-step-img img { width: 100%; height: 100%; object-fit: cover; display: block; }
.guide-step-img.is-empty {
	border: 1.5px dashed rgba(46, 139, 87, .35); background: rgba(46, 139, 87, .04);
	display: flex; align-items: center; justify-content: center; min-height: 96px;
}
.guide-step-placeholder { color: #9aab9f; font-size: 12.5px; letter-spacing: .06em; }
.guide-step-title { margin: 0; font-size: 16px; }
.guide-step-desc { margin: 0; font-size: 13px; color: #5a6b61; line-height: 1.6; }


/* ============================================================
   产品详情页 v2：技术资料风格
   （页内导航 / 章节编号 / 层级强化 / 装饰收敛）
   ============================================================ */

/* --- 页内锚点导航（sticky 胶囊） --- */
.pd-subnav {
	position: sticky; top: 72px; z-index: 40;
	background: rgba(245, 248, 244, .92);
	backdrop-filter: blur(10px);
	border-bottom: 1px solid var(--clr-line);
	padding: 10px 0;
}
.pd-subnav-inner {
	display: flex; gap: 8px;
	overflow-x: auto; scrollbar-width: none;
}
.pd-subnav-inner::-webkit-scrollbar { display: none; }
.pd-subnav a {
	flex-shrink: 0; padding: 7px 18px; border-radius: 999px;
	font-size: 13.5px; font-weight: 700; color: #4a5a51;
	border: 1px solid transparent; white-space: nowrap;
	transition: color .2s, background .2s;
}
.pd-subnav a:hover { color: var(--clr-pine); background: rgba(46, 139, 87, .08); }
.pd-subnav a.is-active { color: #fff; background: var(--clr-pine); }

/* --- 章节编号：技术文档风大号编号 --- */
/* 编号由 PHP 模板直接输出 <span class="sec-no">01</span>（不用 CSS counter，
   Chrome 对伪元素 + counter 的组合在部分场景不可靠，PHP 端递增最稳） */
.pd-sec .section-head {
	display: grid; grid-template-columns: auto 1fr;
	column-gap: 16px; align-items: center;
}
.pd-sec .sec-no {
	grid-row: 1 / 3;
	font-size: clamp(2.1rem, 4.5vw, 3rem);
	font-weight: 800; line-height: 1;
	letter-spacing: -0.02em;
	color: rgba(46, 139, 87, .16);
	font-variant-numeric: tabular-nums;
}
.pd-sec .section-head .eyebrow { margin: 0; }
.pd-sec .section-head .section-title { margin: 0 0 4px; }
.pd-sec .section-head .section-sub { margin: 0; }

/* --- 产品页装饰：恢复化学分子点缀，隐藏叶片（正式页用化学图案） --- */
body.single-product .deco-leaf-tl,
body.single-product .deco-leaf-tr,
body.single-product .deco-leaf-bl,
body.single-product .deco-leaf-br { display: none; }
body.single-product .deco-mol { opacity: .55; }

/* --- 模块间分隔：渐变细线 + 中央六边形（化学符号） --- */
.pd-sec + .pd-sec::before,
.pd-sec + .pd-more::before {
	content: "";
	position: absolute; top: 0; left: 50%; transform: translateX(-50%);
	width: min(880px, 82vw); height: 1px;
	background: linear-gradient(90deg, transparent, rgba(46, 139, 87, .42), transparent);
}
.pd-sec + .pd-sec::after,
.pd-sec + .pd-more::after {
	content: "";
	position: absolute; top: -7px; left: 50%; transform: translateX(-50%);
	width: 14px; height: 14px;
	background: var(--clr-mist);
	clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
	box-shadow: inset 0 0 0 1.5px rgba(46, 139, 87, .55);
}

/* --- 参数区 / 指南区：菱形晶格淡底纹（化学晶格感） --- */
.pd-params, .pd-guide {
	background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='44' height='44' viewBox='0 0 44 44'%3E%3Cpath d='M22 0L44 22L22 44L0 22Z' fill='none' stroke='%232E8B57' stroke-opacity='0.055' stroke-width='1.2'/%3E%3C/svg%3E");
}

/* --- 空白角落化学线稿：指南区苯环 / FAQ 区锥形瓶 --- */
.pd-guide .container::after {
	content: "";
	position: absolute; right: 3%; bottom: 8%; width: 64px; height: 64px;
	background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 60 60'%3E%3Cpath d='M30 6L52 18V42L30 54L8 42V18Z' fill='none' stroke='%232E8B57' stroke-opacity='.16' stroke-width='2'/%3E%3Ccircle cx='30' cy='30' r='9' fill='none' stroke='%232E8B57' stroke-opacity='.13' stroke-width='1.5'/%3E%3C/svg%3E") no-repeat center / contain;
	pointer-events: none;
}
.pd-faq .container::after {
	content: "";
	position: absolute; left: 2%; top: 28%; width: 56px; height: 56px;
	background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 60 60'%3E%3Cpath d='M24 8h12M26 8v18L10 50a4 4 0 0 0 4 6h32a4 4 0 0 0 4-6L34 26V8' fill='none' stroke='%232E8B57' stroke-opacity='.16' stroke-width='2' stroke-linejoin='round'/%3E%3Cpath d='M14 44h32' stroke='%232E8B57' stroke-opacity='.10' stroke-width='1.5'/%3E%3C/svg%3E") no-repeat center / contain;
	pointer-events: none;
}

/* --- 化学线稿：统一沿页面两侧散落（左列 ::before / 右列 ::after） --- */
/* 错落摆放：top 各不相同、尺寸大小不一、苯环与 PEG 链交替，绝不压内容 */
/* 苯环 */
.pd-top .container::before,
.pd-features .container::before,
.pd-params .container::before,
.pd-guide .container::before,
.pd-scenes .container::before,
.pd-more .container::before,
.pd-top .container::after,
.pd-video .container::after,
.pd-guide .container::after,
.pd-scenes .container::after,
.pd-docs .container::after,
.pd-more .container::after,
.pd-trust .container::after,
.pd-faq .faq-wrap::before,
.pd-faq .faq-wrap::after {
	content: "";
	position: absolute; pointer-events: none;
	background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 60 60'%3E%3Cpath d='M30 6L52 18V42L30 54L8 42V18Z' fill='none' stroke='%232E8B57' stroke-opacity='.15' stroke-width='2'/%3E%3Ccircle cx='30' cy='30' r='9' fill='none' stroke='%232E8B57' stroke-opacity='.12' stroke-width='1.5'/%3E%3C/svg%3E") no-repeat center / contain;
}
/* PEG 聚乙二醇链（乙氧基重复单元，顶点圆点为氧） */
.pd-video .container::before,
.pd-docs .container::before,
.pd-features .container::after,
.pd-params .container::after {
	content: "";
	position: absolute; pointer-events: none;
	background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 150 54'%3E%3Cpath d='M10 44L24 12L38 44L52 12L66 44L80 12L94 44L108 12L122 44L136 12' fill='none' stroke='%232E8B57' stroke-opacity='.15' stroke-width='2' stroke-linejoin='round'/%3E%3Ccircle cx='24' cy='12' r='4' fill='none' stroke='%232E8B57' stroke-opacity='.22' stroke-width='2'/%3E%3Ccircle cx='52' cy='12' r='4' fill='none' stroke='%232E8B57' stroke-opacity='.22' stroke-width='2'/%3E%3Ccircle cx='80' cy='12' r='4' fill='none' stroke='%232E8B57' stroke-opacity='.22' stroke-width='2'/%3E%3Ccircle cx='108' cy='12' r='4' fill='none' stroke='%232E8B57' stroke-opacity='.22' stroke-width='2'/%3E%3Ccircle cx='136' cy='12' r='4' fill='none' stroke='%232E8B57' stroke-opacity='.22' stroke-width='2'/%3E%3Ccircle cx='10' cy='44' r='3.5' fill='none' stroke='%232E8B57' stroke-opacity='.22' stroke-width='2'/%3E%3C/svg%3E") no-repeat center / contain;
}
/* FAQ 两侧（faq-wrap 限宽 860px 居中，两侧真空白） */
.pd-faq .faq-wrap { position: relative; }
.pd-faq .faq-wrap::after { left: -64px; top: 22%; width: 44px; height: 38px; }
.pd-faq .faq-wrap::before { right: -64px; top: 55%; width: 50px; height: 44px; }
/* 左列（容器左缘外，错落） */
.pd-top .container::before      { left: -110px; top: 58%; width: 44px; height: 38px; }
.pd-features .container::before { left: -110px; top: 15%; width: 56px; height: 49px; }
.pd-video .container::before    { left: -110px; top: 40%; width: 100px; height: 34px; }
.pd-params .container::before   { left: -110px; top: 55%; width: 48px; height: 42px; }
.pd-guide .container::before    { left: -110px; top: 22%; width: 60px; height: 52px; }
.pd-scenes .container::before   { left: -110px; top: 60%; width: 42px; height: 37px; }
.pd-docs .container::before     { left: -110px; top: 28%; width: 92px; height: 30px; }
.pd-more .container::before     { left: -110px; top: 48%; width: 52px; height: 45px; }
/* 右列（容器右缘外，错落） */
.pd-top .container::after       { right: -110px; top: 22%; width: 52px; height: 45px; }
.pd-features .container::after  { right: -110px; top: 68%; width: 110px; height: 36px; }
.pd-video .container::after     { right: -110px; top: 12%; width: 44px; height: 38px; }
.pd-params .container::after    { right: -110px; top: 30%; width: 96px; height: 32px; }
.pd-guide .container::after     { right: -110px; top: 60%; width: 46px; height: 40px; }
.pd-scenes .container::after    { right: -110px; top: 18%; width: 56px; height: 49px; }
.pd-docs .container::after      { right: -110px; top: 55%; width: 40px; height: 35px; }
.pd-more .container::after      { right: -110px; top: 15%; width: 48px; height: 42px; }
.pd-trust .container::after     { right: -110px; top: 30%; width: 42px; height: 37px; }

/* 模板内联分子中与内容重叠的隐藏（边缘安全的保留） */
body.single-product .pd-params .deco-mol.mol-chain,
body.single-product .pd-docs .deco-mol.mol-ring { display: none; }

/* 移动端：两侧化学图案全部隐藏防拥挤，分隔线保留 */
@media (max-width: 640px) {
	body.single-product .deco-mol,
	.pd-faq .faq-wrap::after,
	.pd-faq .faq-wrap::before,
	:is(.pd-top, .pd-features, .pd-video, .pd-params, .pd-guide, .pd-scenes, .pd-docs, .pd-more, .pd-trust) .container::before,
	:is(.pd-top, .pd-features, .pd-video, .pd-params, .pd-guide, .pd-scenes, .pd-docs, .pd-more, .pd-trust) .container::after { display: none; }
	.pd-sec + .pd-sec::before,
	.pd-sec + .pd-more::before { width: 70%; }
}

/* --- 首屏：主图 1:1（保持方形原图不裁剪）+ 信息卡分层 --- */
.pd-main-img { aspect-ratio: 1 / 1; }
.info-table th { color: #8b9b92; font-weight: 600; font-size: 13px; padding: 8px 0; }
.info-table td { padding: 8px 0; font-weight: 600; font-size: 15px; }
.info-table tr + tr { border-top: 1px dashed rgba(20, 83, 45, .09); }
.info-table .pd-price { color: var(--clr-amber); font-weight: 800; font-size: 27px; letter-spacing: -0.01em; line-height: 1.3; }
.pd-cta { margin-top: 6px; }

/* --- 参数表：关键参数突出 --- */
.params-table th { background: rgba(46, 139, 87, .10); }
.params-table .is-even th { background: rgba(46, 139, 87, .05); }
.params-table .is-key td { color: var(--clr-pine); font-weight: 800; }
.params-figure { margin: 0; }
.params-figure figcaption { margin-top: 8px; font-size: 12.5px; color: #7a8a80; text-align: center; }

/* --- 场景图：图注 --- */
.scene-item figcaption { margin-top: 8px; font-size: 13px; color: #5a6b61; text-align: center; }

/* --- 使用指南说明项：左侧强调条 --- */
.guide-note { border-left: 3px solid rgba(46, 139, 87, .35); }

/* --- 移动端适配 --- */
@media (max-width: 768px) {
	.pd-subnav { top: 58px; }
	.pd-sec .section-head { grid-template-columns: 1fr; column-gap: 0; row-gap: 6px; }
	.pd-sec .sec-no { grid-row: auto; font-size: 1.6rem; }
	.info-table .pd-price { font-size: 24px; }
}