/* ============================================================
   三禾软件 · 公司主站官网
   济南三禾软件有限公司 SANHE SOFTWARE
   设计体系：科技蓝 #1D5FD6 + 浅蓝白底 #F4F7FC + 青色高光 #38BDF8
   字体栈：Noto Sans SC（无外部依赖，系统回退）
   ============================================================ */

:root {
  --forest: #1d5fd6;         /* 主色 · 科技蓝 */
  --forest-deep: #1e56b8;    /* 亮深蓝 · 头部/页脚 */
  --forest-ink: #122a63;     /* 蓝墨 · 文字 */
  --paper: #f4f7fc;          /* 浅蓝白底 */
  --mist: #e9f0fa;           /* 浅蓝雾 */
  --sky: #edf4fe;            /* 浅蓝天 */
  --ink: #152740;            /* 正文蓝墨 */
  --accent: #2e86ff;         /* 亮蓝 · 强调 */
  --accent-deep: #1d5fd6;    /* 深强调 */
  --signal: #38bdf8;         /* 青色高光 */
  --muted: #5a6b85;          /* 弱化文字 */
  --line: rgba(29, 95, 214, 0.16);
  --white: #fff;
  --surface: #fbfcfe;
  --max: 1180px;
  --gutter: clamp(20px, 3vw, 40px);
  --header: 72px;
  --radius: 16px;
  --shadow: 0 18px 55px rgba(11, 46, 117, 0.12);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Source Han Sans SC", system-ui, -apple-system, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; }
ul { list-style: none; }

::selection { background: var(--forest); color: var(--signal); }

/* ---------- 通用 ---------- */

.eyebrow {
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-deep);
  font: 700 11px/1.2 Arial, "Helvetica Neue", sans-serif;
}

.icon {
  width: 1em;
  height: 1em;
  flex: none;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.section { padding: clamp(64px, 8vw, 104px) var(--gutter); }
.section--white { background: var(--surface); }
.section--mist { background: var(--mist); }
.section--sky { background: var(--sky); }
.section--forest { background: var(--forest); color: #fff; }
.section--forest .eyebrow { color: var(--signal); }

.section-heading {
  width: min(100%, var(--max));
  margin: 0 auto clamp(38px, 4.5vw, 56px);
}
.section-heading h2 {
  letter-spacing: -0.03em;
  max-width: 920px;
  margin: 0 0 16px;
  font-size: clamp(30px, 3.4vw, 44px);
  line-height: 1.16;
  font-weight: 800;
}
.section-heading p {
  max-width: 600px;
  color: var(--muted);
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
}
.section--forest .section-heading p { color: rgba(255, 255, 255, 0.72); }
.section-heading__title-line { display: inline; }
.section-heading__title--broken .section-heading__title-line { display: block; }
.section-heading--split {
  display: grid;
  grid-template-columns: minmax(145px, 0.32fr) minmax(0, 1fr);
  gap: clamp(24px, 3vw, 42px);
  align-items: start;
}
.section-heading--split p { max-width: 640px; }
.section-heading--center { text-align: center; }
.section-heading--center h2, .section-heading--center p { margin-left: auto; margin-right: auto; }

[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
[data-reveal].is-visible { opacity: 1; transform: none; }

/* ---------- 按钮 ---------- */

.button {
  border: 1px solid var(--ink);
  border-radius: 10px;
  min-height: 48px;
  padding: 0 22px;
  font-size: 14px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  white-space: nowrap;
  cursor: pointer;
  background: transparent;
  transition: background 0.25s, color 0.25s, transform 0.25s, box-shadow 0.25s, border-color 0.25s;
}
.button:hover { transform: translateY(-2px); }
.button:active { transform: translateY(0) scale(0.985); }
.button--primary { background: var(--forest); color: #fff; border-color: var(--forest); }
.button--primary:hover { background: var(--accent-deep); border-color: var(--accent-deep); }
.button--ghost { background: rgba(255, 255, 255, 0.06); color: var(--ink); border-color: var(--ink); }
.button--ghost:hover { background: var(--mist); }
.button--light { background: var(--forest); color: #fff; border-color: var(--forest); }
.button--light:hover { background: var(--accent-deep); border-color: var(--accent-deep); }
.button--gold { background: var(--signal); color: var(--forest-ink); border-color: var(--signal); }
.button--gold:hover { box-shadow: 0 12px 26px rgba(56, 189, 248, 0.32); }
.button span.arrow { color: var(--signal); }
.button--primary span.arrow, .button--light span.arrow { color: var(--signal); }
.button--gold span.arrow { color: var(--forest-ink); }

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding-bottom: 3px;
  border-bottom: 1px solid currentColor;
  font-size: 14px;
  font-weight: 600;
}

/* ---------- 头部导航 ---------- */

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  background: var(--signal);
  color: var(--forest-ink);
  padding: 10px 16px;
  border-radius: 0 0 8px 0;
  font-weight: 700;
}
.skip-link:focus { left: 0; }

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  height: var(--header);
  color: #fff;
  background: var(--forest-deep);
  box-shadow: 0 1px rgba(255, 255, 255, 0.08);
  transition: box-shadow 0.25s, background 0.25s;
}
.site-header.is-scrolled { box-shadow: 0 8px 30px rgba(11, 30, 69, 0.24); }

.header-inner {
  width: min(100%, 1320px);
  height: 100%;
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: flex;
  align-items: center;
  gap: clamp(16px, 2.2vw, 30px);
}

.brand { display: inline-flex; align-items: center; gap: 10px; }
.brand-logo { display: flex; align-items: center; gap: 10px; }
.brand-logo svg.brand-mark { width: 36px; height: 36px; flex: none; }
.brand-logo img.brand-img { width: 36px; height: 36px; flex: none; border-radius: 9px; object-fit: contain; background: #fff; padding: 2px; }
.brand-text { display: grid; line-height: 1.12; }
.brand-text strong { font-size: 17px; letter-spacing: 0.06em; font-weight: 900; color: #fff; }
.brand-text small { font-size: 9px; letter-spacing: 0.3em; color: rgba(255, 255, 255, 0.66); font-weight: 700; }

.desktop-nav {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: stretch;
  gap: clamp(14px, 1.5vw, 24px);
  height: 100%;
}
.nav-item { display: flex; align-items: center; height: 100%; }
.nav-item > a {
  display: flex;
  align-items: center;
  height: 100%;
  padding: 0 4px;
  font-size: 14px;
  font-weight: 500;
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s, color 0.2s;
}
.nav-item > a:hover, .nav-item > a[aria-current="page"] { border-color: var(--signal); color: var(--signal); }

.header-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 38px;
  padding: 0 14px;
  font-size: 12px;
  font-weight: 700;
  color: var(--forest-ink);
  background: var(--signal);
  border-radius: 9px;
  white-space: nowrap;
  transition: background 0.2s, transform 0.2s;
}
.header-cta:hover { background: #5FD4FF; transform: translateY(-1px); }

.menu-toggle { display: none; }

.mobile-menu { display: none; }

/* ---------- 首页 Hero ---------- */

.hero {
  position: relative;
  min-height: min(760px, 92svh);
  padding: calc(var(--header) + 48px) var(--gutter) 96px;
  display: grid;
  overflow: hidden;
  color: #fff;
  background: linear-gradient(128deg, #0a1e4b 0%, #122a63 46%, #1e56b8 100%);
}
/* ---------- 首页 Banner 轮播 ---------- */
.hero-slides { display: contents; }
.hero-slide {
  position: absolute;
  inset: 0;
  display: grid;
  align-items: center;
  padding: calc(var(--header) + 48px) var(--gutter) 96px;
  opacity: 0;
  visibility: hidden;
  z-index: 0;
  pointer-events: none;
  transition: opacity 0.7s var(--ease), visibility 0s linear 0.7s;
}
.hero-slide.is-active {
  opacity: 1;
  visibility: visible;
  z-index: 1;
  pointer-events: auto;
  transition: opacity 0.7s var(--ease);
}
.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  z-index: 0;
}
/* 背景图上的深色遮罩：左侧深、右侧浅，保证文字可读且保留右侧视觉 */
.hero-shade {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(90deg, rgba(6, 19, 50, 0.9) 0%, rgba(6, 19, 50, 0.66) 42%, rgba(6, 19, 50, 0.24) 74%, rgba(6, 19, 50, 0.06) 100%);
}
.hero-grid {
  width: min(100%, var(--max));
  margin: 0 auto;
  position: relative;
  z-index: 2;
}
/* 轮播导航（箭头 + 圆点指示器） */
.hero-nav {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 28px;
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
}
.hero-arrow {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.35);
  background: rgba(6, 19, 50, 0.35);
  color: #fff;
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: background 0.25s, border-color 0.25s;
}
.hero-arrow:hover { background: rgba(56, 189, 248, 0.35); border-color: var(--signal); }
.hero-dots { display: flex; gap: 10px; }
.hero-dot {
  width: 34px;
  height: 4px;
  border-radius: 999px;
  border: 0;
  padding: 0;
  cursor: pointer;
  background: rgba(255, 255, 255, 0.32);
  transition: background 0.25s;
}
.hero-dot:hover { background: rgba(255, 255, 255, 0.55); }
.hero-dot.is-active { background: var(--signal); }
.hero-copy { max-width: 660px; }
.hero-kicker { display: flex; align-items: center; gap: 16px; margin-bottom: 22px; }
.hero-kicker::before { content: ""; width: 46px; height: 1px; background: var(--signal); }
.hero .eyebrow, .hero .hero-kicker-en { color: var(--signal); }
.hero h1 {
  font-size: clamp(40px, 4.6vw, 60px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.04em;
  max-width: 640px;
  margin: 0 0 22px;
  color: #fff;
}
.hero h1 em { color: var(--signal); font-style: normal; }
.hero-copy > p {
  color: rgba(255, 255, 255, 0.78);
  max-width: 560px;
  font-size: clamp(15px, 1.1vw, 17px);
  margin: 0 0 34px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero .button--ghost {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.42);
}
.hero .button--ghost:hover { background: rgba(255, 255, 255, 0.16); border-color: #fff; }
.hero .button--ghost span.arrow { color: var(--signal); }

.hero-enter { opacity: 0; animation: heroIn 0.8s var(--ease) 0.12s forwards; }
.hero-enter--2 { animation-delay: 0.24s; }
.hero-enter--3 { animation-delay: 0.38s; }
.hero-enter--4 { animation-delay: 0.52s; }
@keyframes heroIn {
  from { opacity: 0; transform: translateY(26px); }
  to { opacity: 1; transform: none; }
}

/* 指标数据带 */
.stats {
  width: min(100%, var(--max));
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.stat {
  position: relative;
  background: #fff;
  border: 1px solid rgba(29, 95, 214, 0.08);
  border-radius: 15px;
  padding: 30px 26px;
  box-shadow: 0 12px 32px rgba(11, 46, 117, 0.07);
  display: grid;
  gap: 6px;
}
.stat b {
  font-size: clamp(30px, 3vw, 42px);
  line-height: 1;
  color: var(--forest);
  font-weight: 800;
  letter-spacing: -0.02em;
}
.stat b small { font-size: 16px; font-weight: 700; color: var(--accent); margin-left: 2px; }
.stat span { color: var(--muted); font-size: 13px; }

/* 图标徽章 */
.icon-badge {
  display: grid;
  place-items: center;
  width: 46px; height: 46px;
  border-radius: 12px;
  background: var(--forest);
  color: var(--signal);
}
.icon-badge svg { width: 22px; height: 22px; }
.icon-badge--soft { background: var(--mist); color: var(--accent-deep); }

/* 四大能力板块 */
.cap-grid {
  width: min(100%, var(--max));
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.cap-card {
  background: var(--surface);
  border: 1px solid rgba(29, 95, 214, 0.1);
  border-radius: 15px;
  overflow: hidden;
  box-shadow: 0 14px 36px rgba(11, 46, 117, 0.08);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
  display: grid;
  grid-template-rows: 176px 1fr;
}
.cap-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.cap-card__media { position: relative; overflow: hidden; }
.cap-card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s var(--ease); }
.cap-card:hover .cap-card__media img { transform: scale(1.05); }
.cap-card__media::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 45%, rgba(13, 32, 78, 0.32));
}
.cap-card__body { padding: 22px 24px 26px; }
.cap-card__body .icon-badge { position: relative; margin-top: -52px; box-shadow: 0 10px 22px rgba(11, 46, 117, 0.26); margin-bottom: 12px; }
.cap-card__body h3 { font-size: 20px; margin: 4px 0 8px; }
.cap-card__body p { color: var(--muted); font-size: 13.5px; margin: 0 0 14px; }
.cap-card__body ul { display: grid; gap: 6px; }
.cap-card__body li { display: flex; gap: 8px; align-items: start; font-size: 12.5px; color: var(--accent-deep); }
.cap-card__body li svg { margin-top: 3px; color: var(--accent); }

/* 产品矩阵 */
.product-grid {
  width: min(100%, var(--max));
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.product-card {
  background: var(--surface);
  border: 1px solid rgba(29, 95, 214, 0.09);
  border-radius: 15px;
  overflow: hidden;
  display: grid;
  grid-template-rows: 220px 1fr;
  box-shadow: 0 12px 32px rgba(11, 46, 117, 0.07);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.product-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.product-card__media { position: relative; overflow: hidden; background: var(--mist); display: grid; place-items: center; }
.product-card__media img { width: 100%; height: 100%; object-fit: contain; padding: 14px; transition: transform 0.6s var(--ease); background: #F7FAFF; }
.product-card:hover .product-card__media img { transform: scale(1.05); }
.product-card__media .tag {
  position: absolute;
  top: 13px; left: 13px; z-index: 2;
  color: #fff;
  background: rgba(13, 32, 78, 0.78);
  backdrop-filter: blur(6px);
  border-radius: 999px;
  padding: 5px 10px;
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.04em;
}
.product-card__body { padding: 22px 24px 24px; }
.product-card__body h3 { font-size: 20px; margin: 0 0 7px; }
.product-card__body p { color: var(--muted); font-size: 13px; margin: 0 0 14px; }
.product-card__body .text-link { font-size: 13px; }

/* 智慧食安引流板块 */
.shian {
  width: min(100%, var(--max));
  margin: 0 auto;
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  color: #fff;
  background: var(--forest-deep);
  isolation: isolate;
  min-height: 300px;
  display: grid;
  align-items: center;
}
.shian::before { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(100deg, rgba(12, 30, 74, 0.92), rgba(18, 62, 140, 0.55) 62%, rgba(18, 62, 140, 0.18)); }
.shian img.shian-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -2; }
.shian-inner { padding: clamp(34px, 5vw, 60px); display: grid; gap: 22px; }
.shian-inner .eyebrow { color: var(--signal); }
.shian-inner h2 { color: #fff; font-size: clamp(28px, 3vw, 40px); letter-spacing: -0.02em; line-height: 1.15; }
.shian-stats { display: flex; flex-wrap: wrap; gap: 12px; }
.shian-stat {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 12px;
  padding: 14px 18px;
  backdrop-filter: blur(4px);
}
.shian-stat b { display: block; font-size: 22px; color: var(--signal); }
.shian-stat span { font-size: 12px; color: rgba(255, 255, 255, 0.72); }
.shian-actions { display: flex; flex-wrap: wrap; gap: 12px; }

/* 案例卡片 */
.case-grid {
  width: min(100%, var(--max));
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.case-card {
  background: var(--surface);
  border: 1px solid rgba(29, 95, 214, 0.09);
  border-radius: 15px;
  overflow: hidden;
  display: grid;
  grid-template-rows: 220px 1fr;
  box-shadow: 0 12px 32px rgba(11, 46, 117, 0.07);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.case-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.case-card__media { position: relative; overflow: hidden; background: #EEF4FE; }
.case-card__media img { width: 100%; height: 100%; object-fit: contain; padding: 12px; transition: transform 0.6s var(--ease); }
.case-card:hover .case-card__media img { transform: scale(1.04); }
.case-card__body { padding: 20px 24px 24px; }
.case-card__body small { color: var(--accent-deep); letter-spacing: 0.1em; font: 700 10px/1.4 Arial, sans-serif; }
.case-card__body h3 { font-size: 19px; margin: 6px 0 8px; }
.case-card__body p { color: var(--muted); font-size: 13px; margin: 0; }

/* ---------- 子页 Hero ---------- */

.breadcrumbs {
  display: flex; flex-wrap: wrap; gap: 8px;
  align-items: center;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 18px;
}
.breadcrumbs a { color: var(--accent-deep); }
.breadcrumbs a:hover { text-decoration: underline; }
.breadcrumbs span { color: var(--muted); opacity: 0.7; }

.page-hero {
  min-height: 400px;
  padding: calc(var(--header) + 42px) var(--gutter) 44px;
  background: linear-gradient(135deg, var(--mist), var(--paper) 58%, var(--sky));
  display: grid;
  align-items: center;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute;
  top: -24vw; right: -18vw;
  width: 48vw;
  aspect-ratio: 1;
  border: 1px solid rgba(46, 134, 255, 0.14);
  border-radius: 50%;
  box-shadow: 0 0 0 8vw rgba(46, 134, 255, 0.035), 0 0 0 16vw rgba(46, 134, 255, 0.02);
}
.page-hero-grid {
  width: min(100%, var(--max));
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(340px, 0.62fr);
  align-items: center;
  gap: clamp(40px, 7vw, 92px);
  position: relative;
  z-index: 1;
}
.page-hero-copy { max-width: 720px; }
.page-hero-copy > .eyebrow { color: var(--accent); margin-bottom: 14px; display: block; }
.page-hero h1 {
  font-size: clamp(38px, 4.2vw, 56px);
  line-height: 1.1;
  letter-spacing: -0.035em;
  margin: 0 0 18px;
  max-width: 780px;
}
.page-hero p { max-width: 620px; color: var(--muted); font-size: 16px; margin: 0; }
.page-hero-audience { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.page-hero-audience span {
  color: var(--accent-deep);
  background: rgba(251, 252, 254, 0.72);
  border: 1px solid rgba(29, 95, 214, 0.12);
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 11px;
  font-weight: 700;
}
.page-hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.page-hero-media { position: relative; align-self: center; }
.page-hero-media img {
  position: relative;
  z-index: 1;
  width: 100%;
  max-height: 320px;
  object-fit: cover;
  border-radius: 16px;
  box-shadow: 0 24px 50px rgba(11, 46, 117, 0.18);
}

/* ---------- 通用内容卡片 ---------- */

.card-grid { width: min(100%, var(--max)); margin: 0 auto; display: grid; gap: 18px; }
.card-grid--2 { grid-template-columns: repeat(2, 1fr); }
.card-grid--3 { grid-template-columns: repeat(3, 1fr); }
.card-grid--4 { grid-template-columns: repeat(4, 1fr); }

.tile {
  background: var(--surface);
  border: 1px solid rgba(29, 95, 214, 0.09);
  border-radius: 15px;
  padding: 26px;
  box-shadow: 0 12px 32px rgba(11, 46, 117, 0.07);
  transition: transform 0.28s var(--ease), box-shadow 0.28s var(--ease);
}
.tile:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.tile .icon-badge { margin-bottom: 15px; }
.tile h3 { font-size: 18px; margin: 0 0 8px; }
.tile p { color: var(--muted); font-size: 13.5px; margin: 0; }

.tag-list { display: flex; flex-wrap: wrap; gap: 7px; }
.tag {
  background: var(--mist);
  color: var(--accent-deep);
  border: 1px solid rgba(29, 95, 214, 0.1);
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 11px;
  line-height: 1.4;
  font-weight: 600;
}

/* 数值指标（关于页） */
.metrics-grid {
  width: min(100%, var(--max));
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

/* 时间线 */
.timeline { width: min(100%, var(--max)); margin: 0 auto; display: grid; gap: 0; border-left: 2px solid var(--line); padding-left: 28px; }
.timeline-item { position: relative; padding: 0 0 38px; }
.timeline-item:last-of-type { padding-bottom: 0; }
.timeline-item::before {
  content: "";
  position: absolute;
  left: -36px; top: 5px;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--forest);
  border: 3px solid var(--paper);
  box-shadow: 0 0 0 2px rgba(29, 95, 214, 0.25);
}
.timeline-item .era { color: var(--accent-deep); letter-spacing: 0.1em; font: 700 11px/1.4 Arial, sans-serif; }
.timeline-item h3 { font-size: 20px; margin: 6px 0 8px; }
.timeline-item p { color: var(--muted); font-size: 14px; max-width: 760px; }

/* 列表勾选 */
.check-list { display: grid; gap: 10px; }
.check-list li { display: flex; gap: 10px; align-items: start; font-size: 14px; color: var(--ink); }
.check-list li svg { color: var(--accent); margin-top: 3px; flex: none; }

/* ---------- 询盘表单 ---------- */

.inquiry-section {
  background: linear-gradient(130deg, var(--mist), var(--sky));
  padding-block: clamp(48px, 5vw, 64px);
}
.inquiry-layout {
  width: min(100%, var(--max));
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(240px, 0.66fr) minmax(0, 1.34fr);
  gap: clamp(32px, 5vw, 66px);
  align-items: start;
}
.inquiry-intro > .eyebrow { color: var(--accent-deep); }
.inquiry-intro h2 { font-size: clamp(30px, 3vw, 42px); margin: 14px 0 12px; letter-spacing: -0.03em; }
.inquiry-intro p { color: var(--muted); font-size: 14.5px; }
.inquiry-hotline {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-top: 22px;
  padding: 13px 18px;
  background: var(--forest);
  color: #fff;
  border-radius: 12px;
  font-weight: 700;
  font-size: 15px;
  box-shadow: 0 14px 34px rgba(11, 46, 117, 0.25);
}
.inquiry-hotline .icon { color: var(--signal); }
.inquiry-hotline:hover { background: var(--accent-deep); }

.inquiry-form {
  background: rgba(251, 252, 254, 0.9);
  border: 1px solid rgba(29, 95, 214, 0.08);
  border-radius: var(--radius);
  padding: clamp(24px, 3vw, 34px);
  box-shadow: 0 18px 44px rgba(10, 26, 59, 0.1);
}
.form-honeypot { position: absolute; left: -9999px; opacity: 0; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-grid .full { grid-column: 1 / -1; }
.inquiry-form label { display: grid; gap: 7px; font-size: 12.5px; font-weight: 700; color: var(--ink); }
.inquiry-form label em { color: #1D5FD6; font-style: normal; }
.inquiry-form input, .inquiry-form select, .inquiry-form textarea {
  width: 100%;
  font: 400 13.5px/1.45 "Noto Sans SC", "PingFang SC", sans-serif;
  color: var(--ink);
  background: #fff;
  border: 1px solid rgba(29, 95, 214, 0.16);
  border-radius: 9px;
  padding: 12px 13px;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.inquiry-form textarea { resize: vertical; }
.inquiry-form input:focus, .inquiry-form select:focus, .inquiry-form textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(46, 134, 255, 0.14);
}
.consent {
  display: flex;
  align-items: start;
  gap: 10px;
  margin: 18px 0 0;
  font-size: 12px;
  font-weight: 400;
  color: var(--muted);
  cursor: pointer;
}
.consent input { width: 15px; height: 15px; margin-top: 2px; accent-color: var(--accent); flex: none; }
.form-action { display: flex; align-items: center; gap: 20px; margin-top: 20px; flex-wrap: wrap; }
.form-status { color: var(--muted); font-size: 12.5px; margin: 0; }
.inquiry-form.is-success { border-color: var(--accent); }
.inquiry-form.is-success .form-status { color: var(--accent-deep); font-weight: 700; }

/* ---------- 浮动工具 ---------- */

.floating-tools {
  position: fixed;
  z-index: 45;
  bottom: clamp(18px, 4vh, 38px);
  right: clamp(14px, 2vw, 28px);
  display: grid;
  justify-items: end;
  gap: 9px;
}
.floating-tool {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-width: 52px;
  padding: 11px 12px;
  justify-content: center;
  color: #fff;
  background: var(--forest-deep);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 12px;
  cursor: pointer;
  box-shadow: 0 14px 30px rgba(11, 31, 75, 0.3);
  font-size: 12px;
  font-weight: 700;
  transition: background 0.2s, transform 0.2s;
}
.floating-tool .icon { color: var(--signal); width: 18px; height: 18px; }
.floating-tool:hover { background: var(--accent); transform: translateY(-2px); }
.floating-tool--top.is-hidden { display: none; }
.floating-panel {
  display: grid;
  gap: 3px;
  background: var(--surface);
  border: 1px solid rgba(29, 95, 214, 0.1);
  border-radius: 13px;
  padding: 14px 16px;
  box-shadow: 0 18px 44px rgba(11, 31, 75, 0.2);
  font-size: 13px;
}
.floating-panel .eyebrow { color: var(--accent); font-size: 10px; }
.floating-panel strong { font-size: 14px; }
.floating-panel a { color: var(--accent-deep); font-weight: 700; }
.floating-panel a:hover { text-decoration: underline; }

/* 微信浮窗与二维码 */
.floating-action--wechat { position: relative; }
.floating-panel--qr {
  position: absolute;
  right: calc(100% + 9px);
  bottom: 0;
  display: none;
  padding: 14px;
}
.floating-panel--qr.is-open { display: block; }
.qr-row { display: flex; gap: 12px; }
.qr-row figure { text-align: center; }
.qr-row img {
  width: 108px;
  height: 108px;
  object-fit: contain;
  background: #fff;
  border-radius: 9px;
  border: 1px solid var(--line);
}
.qr-row figcaption { margin-top: 6px; font-size: 11.5px; font-weight: 700; color: var(--muted); }

/* 页脚二维码 */
.footer-qrs { display: flex; gap: 14px; margin-top: 16px; }
.footer-qrs figure { text-align: center; }
.footer-qrs img {
  width: 92px;
  height: 92px;
  object-fit: contain;
  background: #fff;
  border-radius: 10px;
  padding: 5px;
}
.footer-qrs figcaption { margin-top: 6px; font-size: 11.5px; color: rgba(251, 252, 254, 0.78); }

/* ---------- 页脚 ---------- */

.site-footer {
  position: relative;
  background: var(--forest-deep);
  color: rgba(251, 252, 254, 0.76);
  padding: clamp(72px, 8vw, 104px) var(--gutter) 28px;
  overflow: hidden;
  isolation: isolate;
}
.site-footer::before {
  content: "";
  position: absolute;
  top: -30vw; left: -16vw;
  width: 60vw;
  aspect-ratio: 1;
  border: 1px solid rgba(56, 189, 248, 0.07);
  border-radius: 50%;
  box-shadow: 0 0 0 10vw rgba(56, 189, 248, 0.024);
  pointer-events: none;
}
.footer-lead {
  width: min(100%, var(--max));
  margin: 0 auto clamp(48px, 6vw, 72px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) 96px;
  align-items: end;
  gap: 50px;
}
.footer-lead .eyebrow { color: var(--signal); display: block; margin-bottom: 24px; }
.footer-lead p {
  color: #fff;
  font-size: clamp(28px, 3.4vw, 42px);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.03em;
}
.footer-lead p span { display: block; }
.footer-lead small { display: block; margin-top: 16px; color: rgba(251, 252, 254, 0.66); font-size: 13.5px; }
.circle-link {
  display: grid;
  place-items: center;
  width: 82px; height: 82px;
  border-radius: 50%;
  border: 1px solid rgba(56, 189, 248, 0.45);
  color: var(--signal);
  font-size: 27px;
  transition: background 0.25s, transform 0.25s, box-shadow 0.25s;
}
.circle-link:hover { background: rgba(56, 189, 248, 0.12); transform: rotate(45deg); box-shadow: 0 0 0 9px rgba(56, 189, 248, 0.08); }

.footer-contact-bar {
  width: min(100%, var(--max));
  margin: 0 auto 46px;
  display: grid;
  grid-template-columns: 0.8fr 1.15fr 1.45fr;
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  overflow: hidden;
}
.footer-contact-bar > * {
  display: grid;
  align-content: center;
  gap: 8px;
  min-height: 114px;
  padding: 24px 28px;
  min-width: 0;
  border-right: 1px solid rgba(255, 255, 255, 0.11);
  transition: background 0.22s;
}
.footer-contact-bar > *:last-child { border-right: 0; }
.footer-contact-bar > a:hover { background: rgba(56, 189, 248, 0.1); }
.footer-contact-bar span { color: var(--signal); letter-spacing: 0.16em; font: 700 10px/1 Arial, sans-serif; }
.footer-contact-bar strong { color: #fff; font-size: clamp(14px, 1.4vw, 18px); line-height: 1.45; overflow-wrap: anywhere; }

.footer-grid {
  position: relative;
  z-index: 1;
  width: min(100%, var(--max));
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 36px;
  padding-bottom: 44px;
}
.footer-brand { display: inline-flex; margin-bottom: 16px; }
.footer-grid > div > p { font-size: 13px; line-height: 1.75; max-width: 360px; }
.footer-grid strong { display: block; color: #fff; font-size: 13px; margin-bottom: 13px; }
.footer-grid > div > a {
  display: block;
  padding: 5px 0;
  font-size: 13.5px;
  color: rgba(251, 252, 254, 0.72);
  transition: color 0.2s, transform 0.2s;
}
.footer-grid > div > a:hover { color: var(--signal); transform: translateX(3px); }
.footer-bottom {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 26px;
  justify-content: center;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 12px;
  color: rgba(251, 252, 254, 0.5);
}
.footer-bottom a { color: var(--signal); }
.footer-bottom a:hover { text-decoration: underline; }

/* ---------- 联系页 ---------- */

.contact-grid {
  width: min(100%, var(--max));
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(28px, 4vw, 54px);
  align-items: start;
}
.info-rows { display: grid; gap: 14px; }
.info-row {
  display: flex;
  gap: 15px;
  align-items: flex-start;
  background: var(--surface);
  border: 1px solid rgba(29, 95, 214, 0.09);
  border-radius: 14px;
  padding: 20px 22px;
  box-shadow: 0 10px 26px rgba(11, 46, 117, 0.06);
}
.info-row .icon-badge { margin-top: 2px; }
.info-row strong { display: block; font-size: 15px; margin-bottom: 3px; }
.info-row span, .info-row a { display: block; color: var(--muted); font-size: 13.5px; line-height: 1.6; overflow-wrap: anywhere; }
.info-row a:hover { color: var(--accent-deep); text-decoration: underline; }

/* ---------- 响应式 ---------- */

@media (max-width: 1080px) {
  .desktop-nav { display: none; }
  .header-cta { margin-left: auto; }
  .menu-toggle {
    display: grid;
    gap: 6px;
    width: 44px;
    padding: 10px 0;
    background: none;
    border: 0;
    cursor: pointer;
    justify-items: center;
    flex: none;
  }
  .menu-toggle span { display: block; width: 22px; height: 2px; background: #fff; transition: transform 0.25s, opacity 0.25s; }
  body.menu-open .menu-toggle span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
  body.menu-open .menu-toggle span:nth-child(2) { transform: translateY(-8px) rotate(-45deg); }
  .mobile-menu {
    display: block;
    position: fixed;
    top: var(--header);
    left: 0; right: 0;
    bottom: 0;
    background: var(--forest-deep);
    color: #fff;
    overflow-y: auto;
    padding: 18px var(--gutter) 34px;
    z-index: 40;
    font-size: 16px;
    font-weight: 700;
  }
  .mobile-menu[aria-hidden="true"] { display: none; }
  .mobile-menu nav { display: grid; gap: 4px; }
  .mobile-menu a {
    display: flex; justify-content: space-between; align-items: center;
    padding: 15px 4px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.09);
  }
  .mobile-menu a.shian-pill { justify-content: center; margin-top: 18px; background: var(--signal); color: var(--forest-ink); border-radius: 10px; border-bottom: 0; }
}

@media (max-width: 980px) {
  .hero-grid { display: block; }
  /* 轮播层为绝对定位，移动端需固定最小高度撑起首屏 */
  .hero { min-height: min(660px, 92svh); padding-bottom: 72px; }
  .hero-slide { padding: calc(var(--header) + 40px) var(--gutter) 72px; }
  .hero h1 { font-size: clamp(34px, 8.5vw, 48px); }
  /* 移动端：背景图聚焦右侧视觉部分，遮罩改为纵向渐变保证文字可读 */
  .hero-bg { object-position: 74% center; }
  .hero-shade { background: linear-gradient(180deg, rgba(6, 19, 50, 0.5) 0%, rgba(6, 19, 50, 0.72) 48%, rgba(6, 19, 50, 0.92) 100%); }
  .hero-nav { bottom: 22px; }
  .hero-actions .button { flex: 1 1 46%; }
  .stats, .cap-grid, .product-grid, .case-grid, .metrics-grid { grid-template-columns: 1fr 1fr; }
  .page-hero-grid { grid-template-columns: 1fr; gap: 22px; }
  .page-hero { min-height: 0; padding-top: calc(var(--header) + 34px); padding-bottom: 30px; }
  .page-hero h1 { font-size: clamp(32px, 8vw, 44px); }
  .card-grid--3, .card-grid--4 { grid-template-columns: 1fr 1fr; }
  .inquiry-layout { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
  .footer-contact-bar { grid-template-columns: 1fr; }
  .footer-contact-bar > * { border-right: 0; border-bottom: 1px solid rgba(255, 255, 255, 0.11); min-height: 0; }
  .footer-contact-bar > *:last-child { border-bottom: 0; }
}

@media (max-width: 640px) {
  /* 小屏：隐藏左右箭头仅保留圆点指示器，避免遮挡文字 */
  .hero-arrow { display: none; }
  .hero-dot { width: 26px; }
  .section-heading--split { grid-template-columns: 1fr; }
  .stats, .cap-grid, .product-grid, .case-grid, .metrics-grid, .card-grid--2, .card-grid--3, .card-grid--4 { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .footer-lead { grid-template-columns: 1fr; }
  .circle-link { width: 64px; height: 64px; font-size: 22px; }
  .footer-grid { grid-template-columns: 1fr; }
  .timeline { padding-left: 20px; }
  .timeline-item::before { left: -27px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  [data-reveal] { opacity: 1; transform: none; }
  .hero-enter { opacity: 1; }
}