/* ==========================================================================
   洁风科技 JieFeng Clean — 主样式
   钢铁灰 + 安全橙 · 切角硬朗 · 工业感
   ========================================================================== */

:root {
	--c-steel: #334155;
	--c-steel-deep: #1e293b;
	--c-orange: #ea580c;
	--c-orange-bright: #f97316;
	--c-ink: #21303f;
	--c-text: #5b6b7c;
	--c-line: #dde4ec;
	--c-tint: #f1f4f8;
	--cut: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 0 100%);
	--shadow: 0 12px 32px rgba(30, 41, 59, 0.10);
	--shadow-lg: 0 26px 62px rgba(30, 41, 59, 0.18);
	--font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", -apple-system, "Segoe UI", sans-serif;
}

/* ---------- 基础 ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
	margin: 0;
	font-family: var(--font);
	font-size: 16px;
	line-height: 1.78;
	color: var(--c-text);
	background: #fff;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--c-steel-deep); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--c-orange); }
h1, h2, h3, h4 { color: var(--c-ink); line-height: 1.28; margin: 0 0 .5em; font-weight: 800; }
p { margin: 0 0 1em; }
::selection { background: var(--c-orange); color: #fff; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

.screen-reader-text {
	position: absolute !important;
	width: 1px; height: 1px;
	overflow: hidden; clip: rect(0 0 0 0);
	white-space: nowrap;
}
.skip-link:focus {
	position: fixed; left: 16px; top: 16px; z-index: 999;
	width: auto; height: auto; clip: auto;
	background: var(--c-orange); color: #fff;
	padding: 10px 18px;
}
:focus-visible { outline: 2px solid var(--c-orange); outline-offset: 2px; }

/* ---------- 按钮 ---------- */
.btn {
	display: inline-flex; align-items: center; gap: 8px;
	padding: 13px 28px;
	clip-path: var(--cut);
	border: 0;
	font-size: 15px; font-weight: 700;
	cursor: pointer; white-space: nowrap;
	transition: transform .2s ease, filter .2s ease, background .2s ease, color .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn--orange { background: linear-gradient(110deg, var(--c-orange), var(--c-orange-bright)); color: #fff; }
.btn--orange:hover { color: #fff; filter: brightness(1.07); }
.btn--steel { background: var(--c-steel); color: #fff; }
.btn--steel:hover { background: var(--c-steel-deep); color: #fff; }
.btn--white { background: #fff; color: var(--c-steel-deep); }
.btn--white:hover { color: var(--c-orange); }
.btn--line { background: transparent; color: var(--c-steel-deep); box-shadow: inset 0 0 0 1.5px var(--c-steel); }
.btn--line:hover { background: var(--c-steel); color: #fff; }
.btn--lg { padding: 15px 34px; font-size: 16px; }
.btn--block { width: 100%; justify-content: center; }
.jf-icon { flex-shrink: 0; }

/* ---------- 页头 ---------- */
.site-header {
	position: sticky; top: 0; z-index: 100;
	background: var(--c-steel-deep);
	border-bottom: 3px solid var(--c-orange);
}
.site-header.is-scrolled { box-shadow: 0 10px 34px rgba(30, 41, 59, .4); }
.site-header__inner { display: flex; align-items: center; gap: 28px; min-height: 76px; }
.site-brand { margin-right: auto; }
.site-brand__link { display: flex; align-items: center; gap: 12px; }
.site-brand__mark {
	width: 46px; height: 46px;
	clip-path: var(--cut);
	display: grid; place-items: center; color: #fff;
	background: linear-gradient(135deg, var(--c-orange), var(--c-orange-bright));
}
.site-brand__name { display: block; font-size: 21px; font-weight: 800; color: #fff; }
.site-brand__slogan { display: block; font-size: 12px; color: rgba(255, 255, 255, .55); letter-spacing: .1em; }
.custom-logo { max-height: 50px; width: auto; }

.site-nav__list { list-style: none; display: flex; gap: 2px; margin: 0; padding: 0; }
.site-nav__list li { position: relative; }
.site-nav__list a {
	display: block; padding: 10px 15px;
	color: rgba(255, 255, 255, .85); font-weight: 600; font-size: 14.5px;
}
.site-nav__list a:hover { color: var(--c-orange-bright); }
.site-nav__list .sub-menu {
	position: absolute; top: 100%; left: 0; min-width: 190px;
	list-style: none; margin: 0; padding: 8px;
	background: var(--c-steel); border-top: 3px solid var(--c-orange);
	box-shadow: var(--shadow-lg);
	opacity: 0; visibility: hidden; transform: translateY(8px);
	transition: all .2s ease;
}
.site-nav__list li:hover > .sub-menu,
.site-nav__list li:focus-within > .sub-menu { opacity: 1; visibility: visible; transform: translateY(0); }

.site-header__actions { display: flex; align-items: center; gap: 14px; }
.site-header__phone { display: inline-flex; align-items: center; gap: 10px; color: #fff; }
.site-header__phone .jf-icon { color: var(--c-orange-bright); }
.site-header__phone span { display: flex; flex-direction: column; line-height: 1.3; }
.site-header__phone em { font-style: normal; font-size: 11px; color: rgba(255, 255, 255, .5); letter-spacing: .08em; }
.site-header__phone { font-size: 17px; font-weight: 800; }
.nav-toggle {
	display: none; flex-direction: column; justify-content: center; gap: 5px;
	width: 44px; height: 44px; padding: 10px;
	background: none; border: 1.5px solid rgba(255, 255, 255, .35); cursor: pointer;
}
.nav-toggle span { display: block; height: 2px; background: #fff; transition: transform .25s ease, opacity .2s ease; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- 首屏 ---------- */
.hero { position: relative; background: var(--c-tint); overflow: hidden; }
.hero::before {
	content: ""; position: absolute; right: -10%; top: -30%;
	width: 60%; height: 160%;
	background: linear-gradient(120deg, transparent 40%, rgba(51, 65, 85, .06) 40%);
}
.hero__inner {
	position: relative;
	display: grid; grid-template-columns: 1.06fr .94fr; gap: 48px; align-items: center;
	padding-top: 84px; padding-bottom: 96px;
}
.hero__eyebrow {
	display: inline-flex; align-items: center; gap: 8px;
	font-size: 13.5px; font-weight: 700; letter-spacing: .06em;
	color: var(--c-orange);
	background: #fff;
	box-shadow: inset 0 0 0 1.5px rgba(234, 88, 12, .4);
	padding: 7px 16px;
	clip-path: var(--cut);
}
.hero__title { font-size: clamp(34px, 4.6vw, 56px); font-weight: 900; margin: 24px 0 18px; line-height: 1.18; }
.hero__title em { font-style: normal; color: var(--c-orange); }
.hero__desc { font-size: 17px; max-width: 30em; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin: 30px 0 36px; }
.hero__stats { list-style: none; display: flex; flex-wrap: wrap; gap: 14px 40px; margin: 0; padding: 0; }
.hero__stats li { display: flex; flex-direction: column; }
.hero__stats strong { font-size: 30px; font-weight: 900; color: var(--c-steel-deep); font-variant-numeric: tabular-nums; }
.hero__stats span { font-size: 13px; }

.hero__panel { position: relative; }
.gauge-card {
	background: var(--c-steel-deep); color: rgba(255, 255, 255, .7);
	clip-path: polygon(0 0, calc(100% - 26px) 0, 100% 26px, 100% 100%, 26px 100%, 0 calc(100% - 26px));
	padding: 32px 34px;
	box-shadow: var(--shadow-lg);
}
.gauge-card__title { display: flex; align-items: center; gap: 9px; font-size: 13.5px; font-weight: 700; color: #fff; letter-spacing: .06em; margin-bottom: 20px; }
.gauge-card__title .jf-icon { color: var(--c-orange-bright); }
.gauge-card__main { display: flex; align-items: baseline; gap: 16px; margin-bottom: 20px; }
.gauge-card__main strong { font-size: 62px; font-weight: 900; color: #fff; line-height: 1; font-variant-numeric: tabular-nums; }
.gauge-card__main strong em { font-style: normal; font-size: 26px; color: var(--c-orange-bright); }
.gauge-card__main span { font-size: 13.5px; }
.gauge-card__rows { list-style: none; margin: 0; padding: 0; display: grid; gap: 9px; }
.gauge-card__rows li {
	display: grid; grid-template-columns: 1fr auto auto; gap: 12px; align-items: center;
	background: rgba(255, 255, 255, .06);
	padding: 10px 14px; font-size: 13px;
}
.gauge-card__rows b { color: #fff; font-variant-numeric: tabular-nums; }
.gauge-card__rows em { font-style: normal; font-size: 12px; }
.gauge-card__rows em.is-ok { color: #4ade80; }
.hero__tag {
	position: absolute;
	display: inline-flex; align-items: center; gap: 8px;
	background: #fff; color: var(--c-ink);
	font-size: 13.5px; font-weight: 700;
	padding: 11px 18px;
	clip-path: var(--cut);
	box-shadow: var(--shadow-lg);
}
.hero__tag .jf-icon { color: var(--c-orange); }
.hero__tag--1 { top: -18px; right: 6%; animation: jf-float 5s ease-in-out infinite; }
.hero__tag--2 { bottom: -18px; left: 4%; animation: jf-float 6s ease-in-out 1s infinite; }
@keyframes jf-float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }

.hero__stripe {
	position: absolute; left: 0; right: 0; bottom: 0; height: 12px;
	background: repeating-linear-gradient(-45deg, var(--c-orange) 0 16px, var(--c-steel-deep) 16px 32px);
}

/* ---------- 双业务线 ---------- */
.biz { padding: 88px 0 0; }
.biz__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.biz-card {
	background: var(--c-tint);
	clip-path: polygon(0 0, calc(100% - 24px) 0, 100% 24px, 100% 100%, 0 100%);
	padding: 40px 42px;
	transition: transform .25s ease;
}
.biz-card:hover { transform: translateY(-5px); }
.biz-card--steel { background: var(--c-steel-deep); color: rgba(255, 255, 255, .7); }
.biz-card--steel h2 { color: #fff; }
.biz-card__tag {
	display: inline-block;
	font-size: 12px; font-weight: 800; letter-spacing: .2em;
	color: #fff; background: var(--c-orange);
	padding: 4px 14px; margin-bottom: 18px;
	clip-path: var(--cut);
}
.biz-card h2 { font-size: 27px; margin-bottom: 10px; }
.biz-card__desc { font-size: 15px; margin-bottom: 20px; }
.biz-card ul { list-style: none; margin: 0 0 26px; padding: 0; display: grid; gap: 11px; }
.biz-card li { display: flex; gap: 9px; align-items: flex-start; font-size: 14.5px; }
.biz-card .jf-icon { color: var(--c-orange); margin-top: 4px; flex-shrink: 0; }

/* ---------- 通用版块 ---------- */
.section { padding: 92px 0; }
.section--pad { padding: 64px 0 92px; }
.section--tint { background: var(--c-tint); }
.section--steel {
	background:
		repeating-linear-gradient(-45deg, transparent 0 60px, rgba(255, 255, 255, .02) 60px 120px),
		var(--c-steel-deep);
	color: rgba(255, 255, 255, .65);
}
.section--steel .section-head__title { color: #fff; }
.section--steel .section-head__desc { color: rgba(255, 255, 255, .6); }
.section-head { max-width: 660px; margin: 0 auto 54px; text-align: center; }
.section-head__eyebrow { font-size: 13px; font-weight: 800; letter-spacing: .28em; color: var(--c-orange); margin-bottom: 10px; }
.section-head__title { font-size: clamp(26px, 3.2vw, 40px); margin-bottom: 14px; }
.section-head__desc { margin: 0; }
.section-foot { text-align: center; margin: 46px 0 0; }

/* ---------- 产品卡片 ---------- */
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.product-card {
	background: #fff; border: 1px solid var(--c-line);
	clip-path: var(--cut);
	display: flex; flex-direction: column;
	transition: transform .25s ease, box-shadow .25s ease;
}
.product-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.product-card__media {
	position: relative; display: block; aspect-ratio: 16 / 10;
	background:
		linear-gradient(120deg, transparent 60%, rgba(234, 88, 12, .14) 60%),
		linear-gradient(160deg, var(--c-steel-deep), var(--c-steel));
	overflow: hidden;
}
.product-card__media img { width: 100%; height: 100%; object-fit: cover; }
.product-card__ph { position: absolute; inset: 0; display: grid; place-items: center; color: var(--c-orange-bright); }
.product-card__spec {
	position: absolute; left: 0; bottom: 12px;
	font-size: 12px; font-weight: 700; color: #fff;
	background: var(--c-orange);
	padding: 4px 14px 4px 12px;
	clip-path: polygon(0 0, 100% 0, calc(100% - 8px) 100%, 0 100%);
}
.product-card__body { padding: 22px 24px 24px; display: flex; flex-direction: column; flex: 1; }
.product-card__title { font-size: 17.5px; margin-bottom: 8px; }
.product-card__title a { color: var(--c-ink); }
.product-card__title a:hover { color: var(--c-orange); }
.product-card__desc { font-size: 14px; flex: 1; margin-bottom: 14px; }
.product-card__more { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 700; color: var(--c-orange); transition: gap .2s ease; }
.product-card__more:hover { gap: 10px; }

/* ---------- 维保套餐 ---------- */
.plan-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.plan-card {
	background: #fff; color: var(--c-text);
	clip-path: var(--cut);
	padding: 34px 32px 30px;
	display: flex; flex-direction: column;
	position: relative;
	transition: transform .25s ease;
}
.plan-card:hover { transform: translateY(-6px); }
.plan-card--hot { background: linear-gradient(160deg, #fff7ed, #fff); box-shadow: 0 0 0 2.5px var(--c-orange) inset; }
.plan-card__flag {
	position: absolute; top: 0; right: 18px;
	font-size: 12px; font-weight: 800; letter-spacing: .1em;
	color: #fff; background: var(--c-orange);
	padding: 5px 14px;
	clip-path: polygon(0 0, 100% 0, 100% 100%, 50% calc(100% - 7px), 0 100%);
}
.plan-card h3 { font-size: 20px; margin-bottom: 12px; }
.plan-card__price { display: flex; align-items: baseline; gap: 10px; padding-bottom: 18px; margin-bottom: 18px; border-bottom: 1.5px dashed var(--c-line); }
.plan-card__price strong { font-size: 38px; font-weight: 900; color: var(--c-orange); font-variant-numeric: tabular-nums; }
.plan-card__price span { font-size: 13px; }
.plan-card ul { list-style: none; margin: 0 0 24px; padding: 0; display: grid; gap: 11px; flex: 1; }
.plan-card li { display: flex; gap: 9px; align-items: flex-start; font-size: 14px; }
.plan-card .jf-icon { color: var(--c-orange); margin-top: 4px; flex-shrink: 0; }

/* ---------- 场景 ---------- */
.scene-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.scene-card {
	background: #fff; border: 1px solid var(--c-line);
	border-left: 4px solid var(--c-orange);
	padding: 28px 26px 22px;
	transition: transform .25s ease, box-shadow .25s ease;
}
.scene-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.scene-card__icon {
	display: inline-grid; place-items: center;
	width: 54px; height: 54px;
	clip-path: var(--cut);
	color: #fff;
	background: var(--c-steel);
	margin-bottom: 16px;
}
.scene-card h3 { font-size: 17.5px; margin-bottom: 6px; }
.scene-card p { font-size: 14px; margin: 0; }

/* ---------- 案例 ---------- */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.case-card {
	position: relative;
	background: #fff; border: 1px solid var(--c-line);
	clip-path: var(--cut);
	padding: 30px 28px 26px;
	transition: transform .25s ease, box-shadow .25s ease;
}
.case-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.case-card__num {
	position: absolute; right: 20px; top: 10px;
	font-size: 60px; font-weight: 900;
	color: rgba(234, 88, 12, .1);
	font-variant-numeric: tabular-nums;
}
.case-card h3 { font-size: 18px; margin-bottom: 6px; position: relative; }
.case-card__meta { font-size: 13px; color: var(--c-orange); font-weight: 700; margin-bottom: 10px; }
.case-card__desc { font-size: 14px; margin: 0; }

/* ---------- 新闻 ---------- */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.news-card {
	background: #fff; border: 1px solid var(--c-line);
	padding: 28px 28px 24px;
	transition: transform .25s ease, box-shadow .25s ease;
}
.news-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.news-card__date { font-size: 13px; color: var(--c-orange); font-weight: 700; margin-bottom: 10px; }
.news-card h3 { font-size: 17px; margin-bottom: 10px; }
.news-card h3 a { color: var(--c-ink); }
.news-card h3 a:hover { color: var(--c-orange); }
.news-card__desc { font-size: 14px; }
.news-card__more { display: inline-flex; align-items: center; gap: 6px; font-size: 13.5px; font-weight: 700; color: var(--c-orange); }

/* ---------- 联系 ---------- */
.contact-steel {
	background:
		radial-gradient(700px 380px at 88% 8%, rgba(234, 88, 12, .16), transparent 55%),
		var(--c-steel-deep);
	color: rgba(255, 255, 255, .7);
}
.contact-steel__inner {
	display: grid; grid-template-columns: 1fr 1.05fr; gap: 60px; align-items: center;
	padding-top: 92px; padding-bottom: 92px;
}
.contact-steel__copy h2 { color: #fff; font-size: clamp(26px, 3.4vw, 40px); }
.contact-steel__copy > p { color: rgba(255, 255, 255, .68); max-width: 30em; }
.contact-steel__list { list-style: none; margin: 30px 0 0; padding: 0; display: grid; gap: 16px; }
.contact-steel__list li { display: flex; align-items: center; gap: 12px; font-size: 15.5px; }
.contact-steel__list .jf-icon { color: var(--c-orange-bright); }

.contact-steel__form {
	background: #fff;
	clip-path: polygon(0 0, calc(100% - 26px) 0, 100% 26px, 100% 100%, 26px 100%, 0 calc(100% - 26px));
	padding: 38px;
}
.contact-form h3 { font-size: 20px; margin-bottom: 20px; }
.contact-form p { margin-bottom: 16px; }
.contact-form label { display: block; font-size: 14px; font-weight: 700; color: var(--c-ink); margin-bottom: 6px; }
.contact-form input[type="text"],
.contact-form input[type="tel"],
.contact-form textarea {
	width: 100%; padding: 13px 15px;
	border: 1.5px solid var(--c-line);
	font-family: inherit; font-size: 15px; color: var(--c-ink);
	background: var(--c-tint);
	transition: border-color .2s ease, background .2s ease;
}
.contact-form input:focus, .contact-form textarea:focus {
	outline: none; border-color: var(--c-orange); background: #fff;
}
.contact-form__tip { font-size: 12.5px; color: #93a2b3; text-align: center; margin: 12px 0 0; }
.hp-field { position: absolute !important; left: -9999px; }
.form-notice {
	background: #fff7ed; border: 1.5px solid #fed7aa; color: #9a3412;
	padding: 14px 18px; margin-bottom: 18px; font-size: 14.5px;
}

/* ---------- 内页头部 ---------- */
.page-hero {
	background:
		radial-gradient(500px 260px at 85% 0%, rgba(234, 88, 12, .18), transparent 60%),
		var(--c-steel-deep);
	color: #fff; padding: 64px 0;
	border-bottom: 3px solid var(--c-orange);
}
.page-hero__title { color: #fff; font-size: clamp(28px, 3.6vw, 42px); margin: 0; }
.page-hero__sub { color: rgba(255, 255, 255, .62); margin: 10px 0 0; }
.page-hero__meta { color: var(--c-orange-bright); font-size: 14px; margin: 0 0 10px; }
.page-hero__meta a { color: var(--c-orange-bright); }

/* ---------- 博客列表 ---------- */
.post-list { display: grid; gap: 24px; max-width: 860px; margin: 0 auto; }
.post-card {
	display: grid; grid-template-columns: 280px 1fr;
	background: #fff; border: 1px solid var(--c-line);
	overflow: hidden; transition: transform .25s ease, box-shadow .25s ease;
}
.post-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.post-card__thumb img { width: 100%; height: 100%; object-fit: cover; }
.post-card:not(:has(.post-card__thumb)) { grid-template-columns: 1fr; }
.post-card__body { padding: 24px 28px; }
.post-card__meta { font-size: 13px; color: var(--c-orange); font-weight: 700; margin-bottom: 8px; }
.post-card__meta a { color: inherit; }
.post-card__title { font-size: 20px; margin-bottom: 8px; }
.post-card__title a { color: var(--c-ink); }
.post-card__title a:hover { color: var(--c-orange); }
.post-card__desc { font-size: 14.5px; margin-bottom: 12px; }
.post-card__more { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 700; color: var(--c-orange); }
.no-results { text-align: center; padding: 60px 0; }

.navigation.pagination { margin: 48px 0 0; text-align: center; }
.nav-links { display: flex; justify-content: center; gap: 8px; flex-wrap: wrap; }
.nav-links .page-numbers {
	display: inline-block; min-width: 42px; padding: 9px 14px;
	border: 1.5px solid var(--c-line);
	color: var(--c-ink); font-weight: 700; font-size: 14px;
	clip-path: var(--cut);
	background: #fff;
}
.nav-links .page-numbers.current,
.nav-links .page-numbers:hover { background: var(--c-orange); border-color: var(--c-orange); color: #fff; }

/* ---------- 文章内容 ---------- */
.entry-wrap { max-width: 860px; padding-top: 48px; padding-bottom: 92px; }
.entry__thumb { margin: 0 0 32px; overflow: hidden; }
.entry__content { font-size: 16.5px; }
.entry__content h2 { font-size: 26px; margin-top: 1.6em; }
.entry__content h3 { font-size: 21px; margin-top: 1.4em; }
.entry__content blockquote {
	margin: 1.5em 0; padding: 16px 24px;
	border-left: 4px solid var(--c-orange);
	background: var(--c-tint);
}
.entry__content table { width: 100%; border-collapse: collapse; margin: 1.5em 0; }
.entry__content th, .entry__content td { border: 1px solid var(--c-line); padding: 10px 14px; text-align: left; }
.entry__content th { background: var(--c-tint); }
.entry__tags { margin-top: 28px; font-size: 14px; }
.page-links { margin: 24px 0; }

.post-nav {
	display: flex; justify-content: space-between; gap: 20px;
	margin: 44px 0; padding-top: 28px; border-top: 1px solid var(--c-line);
	font-size: 14.5px;
}
.post-nav__next { text-align: right; }

/* ---------- 评论 ---------- */
.comments-area { margin-top: 48px; }
.comments-title, .comment-reply-title { font-size: 22px; }
.comment-list { list-style: none; margin: 0 0 30px; padding: 0; }
.comment-list .comment { border-bottom: 1px solid var(--c-line); padding: 20px 0; }
.comment-list .children { list-style: none; padding-left: 40px; }
.comment-author { display: flex; align-items: center; gap: 10px; font-weight: 700; color: var(--c-ink); }
.comment-metadata { font-size: 12.5px; }
.comment-content { font-size: 15px; }
.reply { font-size: 13.5px; }
.comment-form input[type="text"], .comment-form input[type="email"], .comment-form input[type="url"], .comment-form textarea {
	width: 100%; padding: 11px 14px;
	border: 1.5px solid var(--c-line);
	font-family: inherit; font-size: 15px; background: var(--c-tint);
}
.comment-form input:focus, .comment-form textarea:focus { outline: none; border-color: var(--c-orange); background: #fff; }
.form-submit .submit {
	background: linear-gradient(110deg, var(--c-orange), var(--c-orange-bright));
	color: #fff; border: 0; padding: 12px 30px;
	font-size: 15px; font-weight: 700; cursor: pointer;
	clip-path: var(--cut);
}

/* ---------- 搜索 / 404 ---------- */
.search-form { display: flex; gap: 10px; max-width: 480px; }
.search-form__input {
	flex: 1; padding: 12px 16px;
	border: 1.5px solid var(--c-line);
	font-family: inherit; font-size: 15px; background: #fff;
}
.search-form__input:focus { outline: none; border-color: var(--c-orange); }
.error-404 { text-align: center; padding: 40px 0; }
.error-404__code {
	font-size: clamp(90px, 16vw, 160px); font-weight: 900; line-height: 1;
	background: linear-gradient(110deg, var(--c-steel), var(--c-orange));
	-webkit-background-clip: text; background-clip: text; color: transparent;
	margin: 0 0 10px;
}
.error-404 .search-form { margin: 24px auto 28px; justify-content: center; }

/* ---------- 产品详情 / 归档 ---------- */
.product-single { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; padding-top: 56px; padding-bottom: 40px; align-items: start; }
.product-single__media {
	position: relative; overflow: hidden;
	aspect-ratio: 4 / 3;
	background:
		linear-gradient(120deg, transparent 60%, rgba(234, 88, 12, .14) 60%),
		linear-gradient(160deg, var(--c-steel-deep), var(--c-steel));
	clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 22px 100%, 0 calc(100% - 22px));
}
.product-single__media img { width: 100%; height: 100%; object-fit: cover; }
.product-single__ph { position: absolute; inset: 0; display: grid; place-items: center; color: var(--c-orange-bright); }
.product-single__summary {
	background: var(--c-tint); border-left: 4px solid var(--c-orange);
	padding: 16px 20px; margin-bottom: 24px;
	font-size: 15px; color: var(--c-ink);
}
.product-single__summary p { margin: 0; }
.product-single__cta {
	margin-top: 32px; padding: 28px 30px;
	background: var(--c-steel-deep); color: rgba(255, 255, 255, .7);
	clip-path: var(--cut);
}
.product-single__cta h3 { font-size: 17px; color: #fff; margin-bottom: 6px; }
.product-single__cta p { font-size: 14px; margin-bottom: 16px; }
.product-single__cta-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.product-single__cta .btn--line { color: #fff; box-shadow: inset 0 0 0 1.5px rgba(255, 255, 255, .5); }
.product-single__cta .btn--line:hover { background: #fff; color: var(--c-steel-deep); }
.related-title { font-size: 24px; margin-bottom: 28px; }
.archive-cta {
	margin-top: 64px; text-align: center;
	background: var(--c-tint);
	clip-path: var(--cut);
	padding: 50px 32px;
}
.archive-cta h2 { font-size: 24px; }
.archive-cta p { margin-bottom: 20px; }

/* ---------- 页脚 ---------- */
.site-footer { background: #17202c; color: rgba(255, 255, 255, .62); }
.site-footer__stripe { height: 8px; background: repeating-linear-gradient(-45deg, var(--c-orange) 0 14px, #17202c 14px 28px); }
.site-footer__grid {
	display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 44px;
	padding-top: 60px; padding-bottom: 48px;
}
.site-footer__logo { display: flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 800; color: #fff; margin-bottom: 14px; }
.site-footer__logo .jf-icon { color: var(--c-orange-bright); }
.site-footer__about { font-size: 14px; line-height: 1.85; }
.site-footer__phone { display: flex; align-items: center; gap: 10px; font-size: 22px; font-weight: 800; color: var(--c-orange-bright); margin-top: 18px; }
.site-footer__title { color: #fff; font-size: 16px; margin-bottom: 18px; }
.site-footer__menu { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.site-footer__menu a { color: rgba(255, 255, 255, .62); font-size: 14px; }
.site-footer__menu a:hover { color: var(--c-orange-bright); }
.site-footer__contact { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; font-size: 14px; }
.site-footer__contact li { display: flex; gap: 9px; align-items: flex-start; }
.site-footer__contact .jf-icon { color: var(--c-orange-bright); margin-top: 4px; }
.site-footer__bottom { border-top: 1px solid rgba(255, 255, 255, .08); }
.site-footer__bottom-inner {
	display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
	padding-top: 20px; padding-bottom: 20px; font-size: 13px;
}
.site-footer__bottom p { margin: 0; }

/* ---------- 返回顶部 ---------- */
.back-to-top {
	position: fixed; right: 26px; bottom: 26px; z-index: 90;
	width: 46px; height: 46px; border: 0;
	clip-path: var(--cut);
	display: grid; place-items: center; cursor: pointer;
	background: linear-gradient(110deg, var(--c-orange), var(--c-orange-bright));
	color: #fff;
	opacity: 0; visibility: hidden; transform: translateY(12px);
	transition: all .25s ease;
}
.back-to-top .jf-icon { transform: rotate(-90deg); }
.back-to-top.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }

/* ---------- 入场动画 ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .6s ease, transform .6s ease; }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
	html { scroll-behavior: auto; }
	.reveal { opacity: 1; transform: none; transition: none; }
	.hero__tag--1, .hero__tag--2 { animation: none; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
	.hero__inner { grid-template-columns: 1fr; }
	.biz__grid { grid-template-columns: 1fr; }
	.product-grid, .scene-grid, .case-grid, .news-grid, .plan-grid { grid-template-columns: repeat(2, 1fr); }
	.contact-steel__inner { grid-template-columns: 1fr; gap: 44px; }
	.site-footer__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 820px) {
	.nav-toggle { display: flex; }
	.site-header__phone { display: none; }
	.site-nav {
		position: fixed; top: 0; right: 0; bottom: 0; z-index: 200;
		width: min(320px, 84vw);
		background: var(--c-steel-deep); box-shadow: -20px 0 60px rgba(0, 0, 0, .5);
		padding: 84px 28px 28px;
		transform: translateX(100%); transition: transform .3s ease;
		overflow-y: auto;
	}
	.site-nav.is-open { transform: translateX(0); }
	.site-nav__list { flex-direction: column; gap: 4px; }
	.site-nav__list a { padding: 13px 14px; font-size: 16px; }
	.site-nav__list .sub-menu {
		position: static; opacity: 1; visibility: visible; transform: none;
		box-shadow: none; border: 0; padding: 0 0 0 18px; margin: 0; background: transparent;
	}
	.nav-toggle { position: relative; z-index: 210; }
	body.nav-open { overflow: hidden; }
}

@media (max-width: 620px) {
	.section { padding: 64px 0; }
	.product-grid, .scene-grid, .case-grid, .news-grid, .plan-grid { grid-template-columns: 1fr; }
	.post-card { grid-template-columns: 1fr; }
	.post-card__thumb { aspect-ratio: 16 / 9; overflow: hidden; }
	.product-single { grid-template-columns: 1fr; }
	.site-footer__grid { grid-template-columns: 1fr; gap: 32px; }
	.contact-steel__form { padding: 26px 22px; }
	.biz-card { padding: 30px 26px; }
	.gauge-card { padding: 26px 24px; }
	.gauge-card__main strong { font-size: 48px; }
}

/* 优化 · 全局尊重系统"减少动态效果"（覆盖装饰性 keyframes 动画） */
@media (prefers-reduced-motion: reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important;}}

/* ==========================================================================
   美化优化 v1.1 · 2026-07 — 钢铁安全橙工业风精修
   ========================================================================== */
/* 通用 UX */
html { scroll-padding-top: 90px; }
h1, h2, h3 { text-wrap: balance; }
p { text-wrap: pretty; }
.btn:active { transform: translateY(0) scale(.98); transition-duration: .08s; }

/* 橙色按钮:渐变缓移 */
.btn--orange { background-size: 170% 100%; transition: transform .2s ease, filter .2s ease, background-position .45s ease, color .2s ease; }
.btn--orange:hover { background-position: 80% 0; filter: none; }

/* 首屏警示斜纹:缓慢滚动(工业签名动效) */
.hero__stripe { animation: jf-hazard 3.2s linear infinite; }
@keyframes jf-hazard { to { background-position: 45.25px 0; } }

/* 导航:斜角短下划线滑入 */
.site-nav__list > li > a { position: relative; }
.site-nav__list > li > a::after {
	content: ""; position: absolute; left: 15px; right: 15px; bottom: 5px; height: 2px;
	background: var(--c-orange-bright);
	transform: skewX(-20deg) scaleX(0); transform-origin: left; transition: transform .25s ease;
}
.site-nav__list > li > a:hover::after,
.site-nav__list > li.current-menu-item > a::after { transform: skewX(-20deg) scaleX(1); }

/* 仪表卡:行悬停增亮 + 主读数悬停橙显 */
.gauge-card__rows li { transition: background .25s ease; }
.gauge-card__rows li:hover { background: rgba(255, 255, 255, .12); }
.gauge-card__main strong { transition: color .3s ease; }
.gauge-card:hover .gauge-card__main strong em { color: #fdba74; }

/* 双业务线:标签字距展开 + 钢色卡橙内沿 */
.biz-card__tag { transition: letter-spacing .3s ease; }
.biz-card:hover .biz-card__tag { letter-spacing: .3em; }
.biz-card--steel { transition: transform .25s ease, box-shadow .3s ease; }
.biz-card--steel:hover { box-shadow: inset 0 0 0 2px rgba(249, 115, 22, .5); }

/* 产品卡:图区微缩放 + 规格签滑出 */
.product-card__media img, .product-card__ph { transition: transform .45s ease; }
.product-card:hover .product-card__media img,
.product-card:hover .product-card__ph { transform: scale(1.05); }
.product-card__spec { transition: transform .3s ease, background .25s ease; }
.product-card:hover .product-card__spec { transform: translateX(5px); background: var(--c-orange-bright); }

/* 维保套餐:价格点亮 + 主推内框加深 */
.plan-card__price strong { transition: color .25s ease; }
.plan-card:hover .plan-card__price strong { color: var(--c-orange-bright); }
.plan-card--hot { transition: transform .25s ease, box-shadow .3s ease; }
.plan-card--hot:hover { box-shadow: 0 0 0 3px var(--c-orange) inset; }

/* 场景卡:左橙条增粗 + 图标翻橙 */
.scene-card { transition: transform .25s ease, box-shadow .25s ease, border-left-color .25s ease; }
.scene-card:hover { border-left-color: var(--c-orange-bright); }
.scene-card__icon { transition: background .3s ease, transform .3s ease; }
.scene-card:hover .scene-card__icon { background: linear-gradient(135deg, var(--c-orange), var(--c-orange-bright)); transform: scale(1.06); }

/* 案例:水印编号显影 */
.case-card__num { transition: color .3s ease; }
.case-card:hover .case-card__num { color: rgba(234, 88, 12, .2); }

/* 表单:焦点橙环 */
.contact-form input:focus, .contact-form textarea:focus { box-shadow: 0 0 0 4px rgba(234, 88, 12, .16); }

/* 页脚:顶部橙钢发丝线 + 链接滑入 */
.site-footer { position: relative; }
.site-footer::before {
	content: ""; position: absolute; top: 0; left: 0; right: 0; height: 2px; opacity: .8;
	background: linear-gradient(90deg, transparent, var(--c-orange) 35%, var(--c-orange-bright) 65%, transparent);
}
.site-footer__menu a { transition: color .2s ease, padding-left .2s ease; }
.site-footer__menu a:hover { padding-left: 6px; }

/* 减动效 */
@media (prefers-reduced-motion: reduce) {
	.hero__stripe { animation: none; }
}