/*
 * 荷皇生物 · 清新视觉体系
 * 默认方案：浅蓝底；可通过 body[data-theme="gray"] 切换浅灰底。
 */
:root {
  --header-height: 72px;
  --page-bg: #eef7fb;
  --page-alt: #e5f1f6;
  --surface: #ffffff;
  --surface-soft: rgba(255, 255, 255, .74);
  --ink: #24403d;
  --ink-soft: #607773;
  --accent: #4f887b;
  --accent-deep: #356a60;
  --accent-soft: #d7ebe6;
  --line: rgba(46, 91, 83, .14);
  --shadow: 0 18px 54px rgba(41, 77, 75, .09);
  --green-950: #244b45;
  --green-900: #2f5a52;
  --green-800: #3d7166;
  --green-700: #4f887b;
  --green-600: #62a091;
  --lime: #a9cdbb;
  --lime-bright: #dcefe8;
  --cream: var(--page-alt);
  --paper: var(--page-bg);
}

body[data-theme="gray"] {
  --page-bg: #f3f4f2;
  --page-alt: #e9ece8;
  --surface: #ffffff;
  --surface-soft: rgba(255, 255, 255, .78);
  --ink: #303d3a;
  --ink-soft: #68736f;
  --accent: #667e76;
  --accent-deep: #4f665e;
  --accent-soft: #dde5e1;
  --line: rgba(55, 73, 67, .14);
  --shadow: 0 18px 54px rgba(47, 58, 54, .08);
  --green-950: #354a44;
  --green-900: #435a53;
  --green-800: #536d65;
  --green-700: #667e76;
  --green-600: #798f87;
  --lime: #b8c9c1;
  --lime-bright: #e5ece8;
  --cream: var(--page-alt);
  --paper: var(--page-bg);
}

body {
  color: var(--ink);
  background: var(--page-bg);
}

.section { padding-block: 104px; }
.section-title { letter-spacing: -.035em; }
.section-desc { color: var(--ink-soft); }
.eyebrow { color: var(--accent); }

/* 顶部导航：始终保持轻透，减少大面积深色。 */
.site-header,
.site-header.scrolled {
  height: 76px;
  color: var(--ink);
  background: color-mix(in srgb, var(--surface) 86%, transparent);
  border-color: var(--line);
  box-shadow: none;
  backdrop-filter: blur(18px);
}
.site-header.scrolled { box-shadow: 0 9px 28px rgba(35, 66, 61, .06); }
.nav-item > a::after { bottom: 16px; height: 1px; background: var(--accent); }
.dropdown { border-radius: 12px; box-shadow: var(--shadow); }
.dropdown a:hover,
.dropdown a[aria-current="page"] { color: var(--accent-deep); background: var(--accent-soft); }
.header-action {
  color: var(--accent-deep);
  border-color: var(--accent);
  background: var(--surface-soft);
}
.header-action:hover { color: #fff; background: var(--accent); border-color: var(--accent); }

/* 首页首屏：由深色全屏图改为清爽的文字 + 图片分栏。 */
.hero {
  min-height: 720px;
  height: 92svh;
  color: var(--ink);
  background: var(--page-bg);
}
.hero-slide::after {
  background: linear-gradient(90deg, var(--page-bg) 0%, var(--page-bg) 49%, color-mix(in srgb, var(--page-bg) 62%, transparent) 64%, transparent 78%);
}
.hero-bg {
  inset: 104px 4vw 54px auto;
  width: 48vw;
  height: calc(100% - 158px);
  border-radius: 30px;
  object-position: center;
  box-shadow: var(--shadow);
}
.hero-content { padding-top: 76px; }
.hero-copy { width: min(620px, 48%); }
.hero-kicker { color: var(--accent); letter-spacing: .19em; }
.hero h1 { margin-bottom: 24px; font-size: clamp(48px, 5.8vw, 78px); }
.hero h1 em { color: var(--accent); }
.hero p { color: var(--ink-soft); }
.btn-primary { color: #fff; background: var(--accent); }
.btn-primary:hover { color: #fff; background: var(--accent-deep); }
.btn-ghost { color: var(--accent-deep); background: var(--surface-soft); border-color: var(--line); }
.btn-ghost:hover { background: var(--surface); border-color: var(--accent); }
.hero-bottom { bottom: 24px; color: var(--ink); }
.dot { background: color-mix(in srgb, var(--ink) 22%, transparent); }
.dot.active { background: var(--accent); }
.scroll-line { background: color-mix(in srgb, var(--ink) 20%, transparent); }
.scroll-line::after { background: var(--accent); }

/* 首页内容：浅底、白色卡片、细线，降低饱和度与阴影。 */
.intro,
.strength,
.video-section { background: var(--page-bg); }
.innovation,
.news,
.products { background: var(--page-alt); }
.intro-main,
.feature-image,
.lab-img,
.video-stage { box-shadow: none; }
.intro-main { border-radius: 96px 20px 20px 20px; }
.intro-small { border-color: var(--page-bg); }
.experience-badge {
  color: var(--ink);
  background: var(--accent-soft);
  border-color: var(--page-bg);
}
.strength-grid { gap: 14px; overflow: visible; box-shadow: none; }
.strength-card { min-height: 300px; border-radius: 18px; }
.strength-card::after { background: linear-gradient(0deg, rgba(27, 55, 49, .66), rgba(27, 55, 49, .02) 66%); }

.products { color: var(--ink); }
.products::before { display: none; }
.products .eyebrow,
.products .text-link { color: var(--accent); }
.products .section-desc { color: var(--ink-soft); }
.product-grid { gap: 14px; }
.product-card {
  min-height: 350px;
  color: var(--ink);
  background: var(--surface-soft);
  border-color: var(--line);
  box-shadow: none;
}
.product-card:hover { border-color: var(--accent); background: var(--surface); }
.product-card::before { opacity: .18; }
.product-card::after { border-color: color-mix(in srgb, var(--accent) 20%, transparent); }
.product-index { color: var(--accent); }
.product-card h3 { margin-top: 72px; }
.product-card p { color: var(--ink-soft); }
.product-icon { color: #fff; background: var(--accent); }

.innovation { background: var(--page-bg); }
.lab-panel { color: var(--ink); background: var(--surface); box-shadow: var(--shadow); }
.lab-panel strong { color: var(--accent); }
.lab-panel span { color: var(--ink-soft); opacity: 1; }
.video-stage { min-height: 560px; border-radius: 24px; }
.video-stage::after { background: linear-gradient(90deg, rgba(31, 59, 53, .72), rgba(31, 59, 53, .12)); }
.play { color: var(--accent-deep); background: rgba(255,255,255,.9); }
.news { background: var(--page-alt); }
.news-tag { background: var(--accent); }

/* 内页首屏同步采用轻量分栏。 */
.page-hero,
.page-hero.compact {
  min-height: 580px;
  height: 68svh;
  color: var(--ink);
  background: var(--page-bg);
}
.page-hero > img {
  inset: 104px 4vw 42px auto;
  width: 49vw;
  height: calc(100% - 146px);
  border-radius: 26px;
  box-shadow: var(--shadow);
}
.page-hero::after {
  background: linear-gradient(90deg, var(--page-bg) 0%, var(--page-bg) 47%, color-mix(in srgb, var(--page-bg) 58%, transparent) 63%, transparent 78%);
}
.page-hero .hero-content { justify-content: center; padding: 116px 0 42px; }
.breadcrumb { color: var(--ink-soft); }
.breadcrumb span:last-child,
.page-kicker { color: var(--accent); }
.page-hero h1 { max-width: 48%; margin-block: 18px; }
.page-hero p { max-width: 44%; color: var(--ink-soft); }
.hero-index { color: color-mix(in srgb, var(--ink) 42%, transparent); }
.local-nav { top: 75px; background: color-mix(in srgb, var(--surface) 92%, transparent); }
.section-soft,
.paths { background: var(--page-alt); }

.about-visual .main-img,
.honor-summary img { box-shadow: none; }
.about-year {
  color: var(--ink);
  background: var(--surface);
  box-shadow: var(--shadow);
}
.about-year strong { color: var(--accent); }
.culture { color: var(--ink); background: var(--page-alt); }
.culture::before { display: none; }
.culture .eyebrow,
.culture-num { color: var(--accent); }
.culture-head p,
.culture-card p { color: var(--ink-soft); }
.culture-grid { gap: 14px; border: 0; }
.culture-card { min-height: 290px; border: 1px solid var(--line) !important; border-radius: 16px; background: var(--surface-soft); }
.culture-card:hover { background: var(--surface); }
.path-grid { box-shadow: none; }
.path-card:hover { color: var(--ink); background: var(--accent-soft); }
.path-card:hover .path-index { color: var(--accent); }
.path-card:hover p { color: var(--ink-soft); }
.capability-copy { background: var(--page-alt); }
.capability-feature.dark .capability-copy {
  color: var(--ink);
  background: var(--accent-soft);
}
.capability-feature.dark .capability-copy p { color: var(--ink-soft); }
.capability-feature.dark .chapter-num { color: var(--accent); }
.document-card { background: var(--surface-soft); }
.document-card:hover { box-shadow: var(--shadow); }
.doc-mark,
.placeholder { background: var(--accent-soft); }

/* 行动区与页脚改为浅色收束。 */
.cta {
  color: var(--ink);
  background: var(--accent-soft);
  border-block: 1px solid var(--line);
}
.cta::before,
.cta::after { border-color: color-mix(in srgb, var(--accent) 18%, transparent); }
.cta p { color: var(--ink-soft); }
.cta .btn,
.cta .btn-primary { color: #fff; background: var(--accent); }
.cta .btn:hover,
.cta .btn-primary:hover { color: #fff; background: var(--accent-deep); }
.site-footer {
  color: var(--ink-soft);
  background: var(--surface-soft);
}
.footer-brand .logo,
.footer-col h3 { color: var(--ink); }
.footer-col a:hover { color: var(--accent); }
.footer-bottom { border-color: var(--line); }
.footer-bottom a { color: inherit; transition: color .2s ease; }
.footer-bottom a:hover { color: var(--accent); }

/* 两套方案的现场切换器。 */
.theme-switcher {
  position: fixed;
  z-index: 190;
  right: 20px;
  bottom: 20px;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px;
  color: var(--ink);
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  border: 1px solid var(--line);
  border-radius: 999px;
  box-shadow: 0 12px 36px rgba(31, 58, 53, .12);
  backdrop-filter: blur(16px);
}
.theme-switcher__label { padding: 0 8px 0 10px; color: var(--ink-soft); font-size: 11px; white-space: nowrap; }
.theme-switcher button {
  height: 36px;
  padding: 0 14px;
  color: var(--ink-soft);
  background: transparent;
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  font-size: 12px;
  transition: .2s ease;
}
.theme-switcher button:hover { color: var(--ink); background: var(--page-alt); }
.theme-switcher button[aria-pressed="true"] { color: #fff; background: var(--accent); }

@media (max-width: 1060px) {
  .mobile-panel { color: var(--ink); background: var(--page-bg); }
  .mobile-nav > a,
  .mobile-nav button { border-color: var(--line); }
  .mobile-sub a { color: var(--ink-soft); }
  .hero-copy { width: min(560px, 54%); }
}

@media (max-width: 720px) {
  .section { padding-block: 76px; }
  .site-header,
  .site-header.scrolled { height: 68px; }
  .hero { min-height: 720px; height: 94svh; }
  .hero-bg {
    inset: 82px 17px auto;
    width: calc(100% - 34px);
    height: 38%;
    border-radius: 20px;
  }
  .hero-slide::after {
    background: linear-gradient(0deg, var(--page-bg) 0%, var(--page-bg) 50%, color-mix(in srgb, var(--page-bg) 18%, transparent) 72%, transparent 88%);
  }
  .hero-content { align-items: flex-end; padding: 48% 0 86px; }
  .hero-copy { width: 100%; }
  .hero-kicker { margin-bottom: 16px; font-size: 10px; }
  .hero h1 { margin-bottom: 18px; font-size: clamp(39px, 11.4vw, 54px); }
  .hero p { margin-bottom: 24px; }
  .hero-bottom { bottom: 18px; }
  .strength-grid { gap: 10px; }
  .product-card { min-height: 340px; background: var(--surface); }
  .page-hero,
  .page-hero.compact { min-height: 650px; height: 82svh; }
  .page-hero > img {
    inset: 82px 17px auto;
    width: calc(100% - 34px);
    height: 40%;
    border-radius: 20px;
  }
  .page-hero::after {
    background: linear-gradient(0deg, var(--page-bg) 0%, var(--page-bg) 48%, color-mix(in srgb, var(--page-bg) 25%, transparent) 72%, transparent 90%);
  }
  .page-hero .hero-content { justify-content: flex-end; padding: 46% 0 54px; }
  .page-hero h1,
  .page-hero p { max-width: 100%; }
  .hero-index { display: none; }
  .local-nav { top: 67px; }
  .culture-grid { gap: 10px; }
  .theme-switcher { right: 12px; bottom: 12px; }
  .theme-switcher__label { display: none; }
  .theme-switcher button { height: 34px; padding-inline: 12px; }
}

/* 2026-08 客户确认版：首页与关于我们 */
.site-header:not(.scrolled) {
  color: #fff;
  background: linear-gradient(180deg, rgba(22, 48, 55, .45), transparent);
  border-color: rgba(255, 255, 255, .22);
  backdrop-filter: none;
}

.hero {
  min-height: 720px;
  height: 100svh;
  color: #fff;
  background: #244b45;
}
.hero-bg {
  inset: 0;
  width: 100%;
  height: 100%;
  border-radius: 0;
  box-shadow: none;
}
.hero-slide::after {
  background: linear-gradient(90deg, rgba(20, 50, 53, .88) 0%, rgba(24, 58, 59, .63) 46%, rgba(18, 43, 45, .1) 78%), linear-gradient(0deg, rgba(17, 44, 46, .4), transparent 45%);
}
.hero-content { padding-top: 82px; }
.hero-copy { width: min(860px, 78vw); }
.hero-kicker { color: #dcefe8; }
.hero h1 { max-width: 940px; color: #fff; font-size: clamp(48px, 6.2vw, 86px); }
.hero h1 em { color: #dcefe8; }
.hero p { color: rgba(255, 255, 255, .82); }
.hero .btn-primary { color: var(--accent-deep); background: #fff; }
.hero .btn-primary:hover { color: var(--accent-deep); background: #dcefe8; }
.hero .btn-ghost { color: #fff; background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.56); }
.hero .btn-ghost:hover { background: rgba(255,255,255,.18); }
.hero-bottom { color: #fff; }
.hero .dot { background: rgba(255,255,255,.35); }
.hero .dot.active { background: #fff; }
.hero .scroll-line { background: rgba(255,255,255,.35); }
.hero .scroll-line::after { background: #fff; }

.intro { background: #fff; }
.strength { background: var(--page-bg); }
.products { color: var(--ink); background: #fff; }
.innovation { background: var(--page-bg); }
.video-section { background: #fff; }
.news { background: var(--page-bg); }

.image-note {
  position: absolute;
  z-index: 4;
  top: 16px;
  right: 16px;
  padding: 7px 11px;
  color: #fff;
  background: rgba(27, 58, 61, .7);
  border: 1px solid rgba(255,255,255,.3);
  border-radius: 999px;
  font-size: 11px;
  backdrop-filter: blur(10px);
}

.product-showcase {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(300px, .9fr) 230px;
  min-height: 530px;
  overflow: hidden;
  background: var(--page-bg);
  border: 1px solid var(--line);
  border-radius: 22px;
}
.product-visual { position: relative; min-height: 530px; overflow: hidden; }
.product-visual img { width: 100%; height: 100%; object-fit: cover; transition: opacity .25s ease; }
.product-detail { display: flex; flex-direction: column; justify-content: center; padding: 54px; background: #fff; }
.product-detail .product-index { color: var(--accent); }
.product-detail h3 { margin: 22px 0 18px; font: 500 38px/1.2 Georgia, "Noto Serif SC", serif; }
.product-detail p { margin: 0 0 32px; color: var(--ink-soft); font-size: 14px; line-height: 2; }
.product-detail .text-link { margin-top: auto; }
.product-tabs { display: flex; flex-direction: column; justify-content: center; padding: 26px; background: var(--page-alt); border-left: 1px solid var(--line); }
.product-tab {
  position: relative;
  min-height: 62px;
  padding: 0 36px 0 0;
  color: var(--ink-soft);
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--line);
  cursor: pointer;
  text-align: left;
  transition: .2s ease;
}
.product-tab::after { content: "→"; position: absolute; right: 0; color: var(--accent); opacity: 0; transform: translateX(-8px); transition: .2s ease; }
.product-tab:hover,
.product-tab.active { color: var(--accent-deep); font-weight: 700; }
.product-tab.active::after { opacity: 1; transform: none; }

.page-hero,
.page-hero.compact { color: #fff; background: #244b45; }
.page-hero > img { inset: 0; width: 100%; height: 100%; border-radius: 0; box-shadow: none; }
.page-hero::after { background: linear-gradient(90deg, rgba(19,48,51,.88), rgba(24,57,58,.54) 52%, rgba(18,44,46,.08)); }
.page-hero .hero-content { justify-content: center; padding: 118px 0 64px; }
.page-hero h1 { max-width: 760px; color: #fff; }
.page-hero p { max-width: 580px; color: rgba(255,255,255,.8); }
.page-hero .breadcrumb { color: rgba(255,255,255,.68); }
.page-hero .breadcrumb span:last-child,
.page-hero .page-kicker { color: #dcefe8; }
.hero-index { color: rgba(255,255,255,.48); }

.about-visual,
.factory-card,
.resource-map { position: relative; }
.culture-grid--six { grid-template-columns: repeat(3, 1fr); gap: 14px; }
.culture-grid--six .culture-card { min-height: 280px; }
.section-soft { background: var(--page-bg); }
.resource-grid { display: grid; grid-template-columns: .88fr 1.12fr; gap: 84px; align-items: center; }
.resource-copy .section-desc + .section-desc { margin-top: 14px; }
.resource-map { min-height: 470px; overflow: hidden; border-radius: 22px; }
.resource-map > img { width: 100%; height: 470px; object-fit: cover; }
.resource-points { position: absolute; left: 24px; right: 24px; bottom: 24px; display: flex; flex-wrap: wrap; gap: 8px; }
.resource-points span { padding: 10px 14px; color: #fff; background: rgba(24, 58, 59, .74); border: 1px solid rgba(255,255,255,.25); border-radius: 999px; font-size: 12px; backdrop-filter: blur(10px); }
.history-list { display: grid; grid-template-columns: repeat(3, 1fr); margin: 48px 0 0; padding: 0; list-style: none; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.history-list li { min-height: 150px; padding: 28px; background: #fff; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.history-list strong { display: block; margin-bottom: 28px; color: var(--accent); font: 38px Georgia, serif; }
.history-list span { color: var(--ink-soft); font-size: 14px; line-height: 1.7; }
.pending-panel { display: flex; align-items: center; justify-content: space-between; gap: 40px; padding: 54px; background: #fff; border: 1px solid var(--line); border-radius: 20px; }
.pending-panel .section-desc { max-width: 700px; }
.pending-status { flex: 0 0 auto; padding: 12px 18px; color: var(--accent-deep); background: var(--accent-soft); border-radius: 999px; font-size: 13px; }

@media (max-width: 1060px) {
  .product-showcase { grid-template-columns: 1.1fr .9fr; }
  .product-tabs { grid-column: 1 / -1; flex-direction: row; overflow-x: auto; border-top: 1px solid var(--line); border-left: 0; }
  .product-tab { min-width: 145px; padding: 0 22px; text-align: center; }
  .product-tab::after { display: none; }
  .resource-grid { grid-template-columns: 1fr; gap: 50px; }
}

@media (max-width: 720px) {
  .site-header:not(.scrolled) { height: 68px; }
  .hero { min-height: 720px; height: 100svh; }
  .hero-bg { inset: 0; width: 100%; height: 100%; border-radius: 0; }
  .hero-slide::after { background: linear-gradient(0deg, rgba(18,47,50,.92), rgba(18,47,50,.36) 76%); }
  .hero-content { align-items: flex-end; padding: 130px 0 112px; }
  .hero-copy { width: 100%; }
  .hero h1 { font-size: clamp(39px, 11.2vw, 54px); }
  .hero p { font-size: 14px; line-height: 1.75; }
  .product-showcase { display: block; }
  .product-visual { min-height: 330px; }
  .product-detail { min-height: 390px; padding: 34px 24px; }
  .product-detail h3 { font-size: 32px; }
  .product-tabs { display: flex; padding: 12px; }
  .product-tab { min-width: 128px; min-height: 50px; padding: 0 12px; }
  .page-hero > img { inset: 0; width: 100%; height: 100%; border-radius: 0; }
  .page-hero::after { background: linear-gradient(0deg, rgba(18,47,50,.9), rgba(18,47,50,.24)); }
  .page-hero .hero-content { justify-content: flex-end; padding: 120px 0 70px; }
  .page-hero h1,
  .page-hero p { max-width: 100%; }
  .culture-grid--six { grid-template-columns: 1fr; }
  .culture-grid--six .culture-card { min-height: auto; }
  .resource-map,
  .resource-map > img { min-height: 390px; height: 390px; }
  .resource-points { left: 14px; right: 14px; bottom: 14px; }
  .history-list { grid-template-columns: 1fr; }
  .history-list li { min-height: 128px; }
  .pending-panel { align-items: flex-start; flex-direction: column; padding: 34px 24px; }
}

/* 2026-08 最终简约版：浅蓝与白色板块交替 */
:root {
  --page-blue: #edf7fb;
  --page-blue-strong: #e2f1f7;
  --page-white: #ffffff;
  --surface: #ffffff;
  --ink: #183d45;
  --ink-soft: #58727a;
  --accent: #2f7883;
  --accent-deep: #225f69;
  --accent-soft: #d9eef2;
  --line: #d3e3e8;
  --shadow: 0 12px 32px rgba(30, 78, 88, .08);
  --paper: var(--page-blue);
  --cream: var(--page-white);
}

body,
body[data-theme="gray"] {
  color: var(--ink);
  background: var(--page-white);
}

.section { padding-block: 88px; }
.section-title { font-family: "Noto Serif SC", "Songti SC", Georgia, serif; font-weight: 600; letter-spacing: -.02em; }
.section-desc { line-height: 1.8; }
.eyebrow { margin-bottom: 14px; letter-spacing: .14em; }
.title-row { margin-bottom: 42px; }

/* 导航与首屏图片区分开，Hero 从导航栏下缘开始。 */
.site-header,
.site-header:not(.scrolled),
.site-header.scrolled {
  height: var(--header-height);
  color: var(--ink);
  background: rgba(255, 255, 255, .94);
  border-color: var(--line);
  box-shadow: none;
  backdrop-filter: blur(14px);
}
.site-header.scrolled { box-shadow: 0 6px 18px rgba(30, 78, 88, .06); }
.nav-item > a::after { bottom: 14px; background: var(--accent); }
.header-action { height: 40px; border-radius: 8px; }
.dropdown { border-radius: 8px; box-shadow: var(--shadow); }

/* 首页轮播：横屏满幅图片与左侧品牌大标题。 */
.hero {
  min-height: 620px;
  height: calc(100svh - var(--header-height));
  margin-top: var(--header-height);
  color: #fff;
  background: #173b36;
}
.hero-bg {
  inset: 0;
  width: 100%;
  height: 100%;
  border-radius: 0;
  box-shadow: none;
}
.hero-slide::after {
  background: linear-gradient(90deg, rgba(7, 27, 24, .72) 0%, rgba(7, 27, 24, .48) 45%, rgba(7, 27, 24, .08) 78%), linear-gradient(0deg, rgba(6, 23, 21, .38), transparent 46%);
}
.hero-slide--growth .hero-bg {
  object-position: center;
  filter: saturate(.98) contrast(1.02) brightness(.94);
}
.hero-slide--growth::after {
  background: linear-gradient(90deg, rgba(36, 25, 12, .48) 0%, rgba(36, 25, 12, .25) 48%, rgba(36, 25, 12, .03) 78%), linear-gradient(0deg, rgba(28, 19, 9, .24), transparent 52%);
}
.hero-slide--green .hero-bg {
  filter: saturate(.84) sepia(.11) contrast(1.04) brightness(.88);
}
.hero-slide--green::after {
  background: linear-gradient(90deg, rgba(32, 39, 15, .66) 0%, rgba(32, 39, 15, .38) 49%, rgba(32, 39, 15, .06) 78%), linear-gradient(0deg, rgba(33, 25, 10, .25), transparent 50%);
}
.hero-slide--agriculture .hero-bg {
  filter: saturate(.86) sepia(.08) contrast(1.03) brightness(.9);
}
.hero-slide--agriculture::after {
  background: linear-gradient(90deg, rgba(24, 45, 23, .68) 0%, rgba(31, 44, 20, .42) 52%, rgba(31, 44, 20, .06) 80%), linear-gradient(0deg, rgba(38, 28, 12, .24), transparent 52%);
}
.hero-content { align-items: flex-start; padding-top: clamp(132px, 17vh, 196px); }
.hero-copy { width: min(1060px, 90%); }
.hero-kicker {
  margin-bottom: 30px;
  color: #fff;
  font-size: clamp(17px, 1.55vw, 24px);
  letter-spacing: .06em;
}
.hero-kicker::before { display: none; }
.hero h1 {
  max-width: 1080px;
  margin: 0;
  color: #fff;
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: clamp(52px, 7.1vw, 112px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -.035em;
  text-wrap: balance;
  text-shadow: 0 3px 20px rgba(0, 0, 0, .16);
}
.hero .btn-primary { color: #fff; background: var(--accent); border-radius: 8px; }
.hero .btn-primary:hover { color: #fff; background: var(--accent-deep); transform: none; }
.hero .btn-ghost { color: var(--accent-deep); background: #fff; border-color: var(--line); border-radius: 8px; backdrop-filter: none; }
.hero .btn-ghost:hover { background: var(--page-white); border-color: var(--accent); }
.hero-bottom { bottom: 30px; color: #fff; }
.hero .dot { height: 3px; background: rgba(255,255,255,.38); }
.hero .dot.active { background: #fff; }
.hero .scroll-line { background: rgba(255,255,255,.35); }
.hero .scroll-line::after { background: #fff; }

/* 首页各板块严格按白色 / 浅蓝交替。 */
.intro { background: var(--page-white); }
.strength { background: var(--page-blue); }
.products { color: var(--ink); background: var(--page-white); }
.innovation { background: var(--page-blue); }
.video-section { background: var(--page-white); }
.news { background: var(--page-blue); }
.products::before { display: none; }

.intro-grid { gap: 68px; }
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.home-about-grid {
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
  align-items: center;
  gap: clamp(48px, 7vw, 96px);
}
.home-about-copy p {
  margin: 0;
  color: var(--ink);
  font-size: 16px;
  line-height: 2;
  text-align: justify;
}
.home-about-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 94px;
  height: 42px;
  margin-top: 28px;
  padding: 0 18px;
  color: #fff;
  background: #4c94c6;
  border: 1px solid #2f6f9b;
  border-radius: 2px;
  font-size: 16px;
  transition: background .2s ease;
}
.home-about-link:hover,
.home-about-link:focus-visible { background: #327dab; }
.home-about-media { margin: 0; }
.home-about-media img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 0;
}
.intro-main,
.intro-small,
.strength-card,
.product-showcase,
.product-card,
.lab-img,
.lab-panel,
.video-stage,
.feature-image,
.resource-map,
.pending-panel,
.culture-card { border-radius: 12px; }
.intro-main { border-radius: 12px; }
.intro-small { border: 6px solid var(--page-white); }
.experience-badge { color: var(--accent-deep); background: var(--accent-soft); border-color: var(--page-white); }
.strength-grid { gap: 12px; box-shadow: none; }
.strength-card { min-height: 280px; }
.strength-card:hover img { transform: none; }

.products { padding-block: 0; }
.products > .container { width: 100%; }
.product-showcase {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 620px) 180px;
  align-items: center;
  justify-content: space-between;
  min-height: 660px;
  padding: 82px max(24px, calc((100vw - 1180px) / 2));
  overflow: hidden;
  color: #fff;
  background: #063c37;
  border: 0;
  border-radius: 0;
}
.product-showcase::after {
  content: "";
  position: absolute;
  z-index: 1;
  inset: 0;
  background: linear-gradient(90deg, rgba(0, 29, 26, .8) 0%, rgba(0, 39, 35, .46) 52%, rgba(0, 35, 32, .2) 100%), linear-gradient(0deg, rgba(0, 24, 22, .3), transparent 58%);
  pointer-events: none;
}
.product-backdrop {
  position: absolute;
  z-index: 0;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 1;
  transition: opacity .28s ease, transform .8s ease;
}
.product-backdrop.is-changing { opacity: .18; transform: scale(1.015); }
.product-detail {
  position: relative;
  z-index: 2;
  display: block;
  min-width: 0;
  padding: 0;
  color: #fff;
  background: transparent;
}
.product-detail .product-index { display: none; }
.product-detail h3 {
  margin: 0 0 28px;
  color: #fff;
  font: 700 clamp(30px, 3vw, 46px)/1.2 "PingFang SC", "Microsoft YaHei", sans-serif;
}
.product-detail p {
  max-width: 580px;
  min-height: 150px;
  margin: 0;
  color: rgba(255,255,255,.94);
  font-size: 16px;
  line-height: 2;
}
.product-more {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 112px;
  height: 44px;
  margin-top: 28px;
  padding: 0 18px;
  color: #fff;
  background: #4c94c6;
  border: 1px solid rgba(255,255,255,.55);
  border-radius: 2px;
  font-size: 17px;
  font-weight: 700;
}
.product-more:hover,
.product-more:focus-visible { background: #327dab; }
.product-tabs {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 0;
  background: transparent;
  border: 0;
}
.product-tab {
  min-height: 42px;
  padding: 6px 14px;
  color: #183d45;
  background: rgba(255,255,255,.92);
  border: 1px solid rgba(255,255,255,.75);
  border-radius: 0;
  font-size: 16px;
  text-align: left;
}
.product-tab::after { display: none; }
.product-tab:hover,
.product-tab.active {
  color: #fff;
  background: #4c94c6;
  border-color: #8dc4e8;
  font-weight: 700;
}
.product-card:hover,
.document-card:hover { transform: none; box-shadow: none; }

.innovation-grid { gap: 64px; }
.lab-panel { box-shadow: var(--shadow); }
.innovation-item:hover { padding-left: 0; }
.video-stage { min-height: 520px; }
.video-stage:hover img,
.feature-news:hover .feature-image img { transform: none; }
.play { width: 88px; height: 88px; box-shadow: 0 0 0 10px rgba(255,255,255,.12); }
.video-stage:hover .play { transform: translateY(-50%); box-shadow: 0 0 0 10px rgba(255,255,255,.12); }

/* 关于我们及子页面：首屏同样使用浅蓝分栏，其余板块交替。 */
.page-hero,
.page-hero.compact {
  min-height: 540px;
  height: 64svh;
  color: var(--ink);
  background: var(--page-blue);
}
.page-hero > img {
  inset: 92px 4vw 30px auto;
  width: 48vw;
  height: calc(100% - 122px);
  border-radius: 12px;
  box-shadow: none;
}
.page-hero::after {
  background: linear-gradient(90deg, var(--page-blue) 0%, var(--page-blue) 46%, rgba(237,247,251,.86) 57%, rgba(237,247,251,.1) 79%);
}
.page-hero .hero-content { justify-content: center; padding: 104px 0 46px; }
.page-hero h1 { max-width: 47%; color: var(--ink); }
.page-hero p { max-width: 43%; color: var(--ink-soft); }
.page-hero .breadcrumb { color: var(--ink-soft); }
.page-hero .breadcrumb span:last-child,
.page-hero .page-kicker { color: var(--accent); }
.hero-index { color: rgba(24, 61, 69, .4); }
.local-nav { top: 71px; background: rgba(255,255,255,.96); }

/* 关于我们主页面：金色田野全幅 Banner。 */
.about-page .page-hero {
  min-height: 560px;
  height: 70svh;
  color: #fff;
  background: #69421f;
}
.about-page .page-hero > img {
  inset: 0;
  width: 100%;
  height: 100%;
  border-radius: 0;
  object-position: center;
  box-shadow: none;
}
.about-page .page-hero::after {
  background: linear-gradient(90deg, rgba(49, 31, 13, .52) 0%, rgba(49, 31, 13, .24) 52%, rgba(49, 31, 13, .03) 78%), linear-gradient(0deg, rgba(37, 25, 12, .22), transparent 55%);
}
.about-page .page-hero .hero-content {
  justify-content: center;
  padding: 112px 0 54px;
}
.about-page .page-hero .page-kicker {
  margin-bottom: 24px;
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: .04em;
}
.about-page .page-hero h1 {
  max-width: 1060px;
  margin: 0;
  color: #fff;
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: clamp(40px, 4.5vw, 68px);
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: -.03em;
  text-shadow: 0 3px 18px rgba(48, 28, 8, .18);
}

/* 企业介绍：生产车间配图与简洁数字栏。 */
.about-page #company .about-intro {
  grid-template-columns: minmax(0, 1.1fr) minmax(380px, .9fr);
  align-items: center;
  gap: 64px;
}
.about-page #company .about-copy .section-desc {
  margin-bottom: 22px;
  font-size: 15px;
  line-height: 1.9;
}
.about-page #company .about-visual {
  width: 100%;
  padding: 0;
}
.about-page #company .about-visual .main-img {
  width: 100%;
  height: auto;
  aspect-ratio: 568 / 312;
  object-fit: cover;
  border-radius: 0;
  box-shadow: none;
}
.about-page #company .about-stats {
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(28px, 6vw, 92px);
  margin-top: 64px;
  padding: 28px 0;
  background: #fff;
  border: 0;
}
.about-page #company .about-stat {
  padding: 0;
  color: #2e79bb;
  border: 0;
  text-align: left;
}
.about-page #company .about-stat strong {
  display: block;
  color: #2e79bb;
  font-family: Arial, "PingFang SC", sans-serif;
  font-size: clamp(46px, 5vw, 68px);
  font-weight: 400;
  line-height: 1;
  letter-spacing: -.04em;
  white-space: nowrap;
}
.about-page #company .about-stat strong sup {
  margin-left: 3px;
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: .4em;
  font-weight: 400;
  letter-spacing: 0;
  vertical-align: baseline;
}
.about-page #company .about-stat span {
  display: block;
  margin-top: 14px;
  color: #2e79bb;
  font-size: 20px;
  line-height: 1.3;
}

/* 企业文化：轻量卡片，与全站浅蓝、白色交替的视觉体系保持一致。 */
.about-page .culture {
  color: var(--ink);
  background: var(--page-blue);
}
.about-page .culture .culture-head {
  align-items: end;
  margin-bottom: 46px;
  padding-bottom: 28px;
  border-bottom: 1px solid rgba(73, 143, 197, .18);
}
.about-page .culture .culture-head p {
  color: var(--ink-soft);
}
.about-page .culture .culture-grid--six {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  border: 0;
}
.about-page .culture .culture-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 292px;
  padding: 30px;
  overflow: hidden;
  color: var(--ink);
  background: rgba(255, 255, 255, .94);
  border: 1px solid rgba(73, 143, 197, .2) !important;
  border-radius: 16px;
  box-shadow: 0 10px 30px rgba(35, 96, 137, .06);
  text-align: center;
  transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.about-page .culture .culture-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: linear-gradient(180deg, var(--accent), #8fc5e8);
  opacity: .78;
}
.about-page .culture .culture-card:hover {
  color: var(--ink);
  background: #fff;
  border-color: rgba(73, 143, 197, .42) !important;
  box-shadow: 0 18px 42px rgba(35, 96, 137, .11);
  transform: translateY(-4px);
}
.about-page .culture .culture-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  color: var(--accent-deep);
  background: var(--accent-soft);
  border: 1px solid rgba(73, 143, 197, .18);
  border-radius: 14px;
  font-family: Arial, "Arial Unicode MS", sans-serif;
  font-size: 29px;
  font-weight: 400;
  line-height: 1;
}
.about-page .culture .culture-card h3 {
  margin: 24px 0 18px;
  color: var(--ink);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
  font-size: 24px;
  font-weight: 600;
  line-height: 1.35;
}
.about-page .culture .culture-card p {
  margin: 0;
  color: #000;
  font-size: 16px;
  line-height: 1.85;
}
.about-page .culture .culture-card--service p {
  font-size: 16px;
  line-height: 1.85;
}

@media (max-width: 1060px) {
  .about-page #company .about-intro { grid-template-columns: 1fr; gap: 48px; }
  .about-page #company .about-visual { order: -1; width: min(760px, 100%); }
  .about-page .culture .culture-grid--six { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .about-page .culture .culture-card { min-height: 270px; }
}

.culture,
.section-soft,
.capability-feature:nth-of-type(even) .capability-copy,
.paths { color: var(--ink); }
.culture,
.section-soft,
.capability-feature:nth-of-type(even) .capability-copy { background: var(--page-blue); }
.paths { background: var(--page-white); }
.capability-feature:nth-of-type(odd) .capability-copy { background: var(--page-white); }
.capability-feature.dark .capability-copy { color: var(--ink); background: var(--page-blue); }
.culture::before { display: none; }
.culture-grid { gap: 12px; border: 0; }
.culture-card { min-height: 250px; background: var(--page-white); border: 1px solid var(--line) !important; }
.culture-card:hover { background: var(--page-white); }
.path-grid { border: 1px solid var(--line); box-shadow: none; }
.path-card { background: var(--page-white); }
.path-card:hover { color: var(--ink); background: var(--accent-soft); }
.history-list li,
.pending-panel { background: var(--page-white); }
.resource-grid { gap: 64px; }

/* 行动区和页脚使用轻量色块收束，不再使用深色大面积背景。 */
.cta {
  padding: 68px 0;
  color: var(--ink);
  background: var(--page-blue-strong);
  border-block: 1px solid var(--line);
}
.cta#contact { background: var(--page-white); }
.cta::before,
.cta::after { display: none; }
.cta p { color: var(--ink-soft); }
.cta .btn,
.cta .btn-primary { color: #fff; background: var(--accent); border-radius: 8px; }
.cta .btn:hover,
.cta .btn-primary:hover { color: #fff; background: var(--accent-deep); transform: none; }
.site-footer {
  padding-top: 64px;
  color: var(--ink-soft);
  background: var(--page-white);
  border-top: 1px solid var(--line);
}
.site-footer.home-footer { background: var(--page-blue); }
.footer-brand .logo,
.footer-col h3 { color: var(--ink); }
.footer-bottom { border-color: var(--line); }

.reveal { transform: translateY(14px); transition-duration: .5s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}

@media (max-width: 1060px) {
  .mobile-panel { color: var(--ink); background: var(--page-white); }
  .mobile-nav > a,
  .mobile-nav button { border-color: var(--line); }
  .mobile-sub a { color: var(--ink-soft); }
  .hero-copy { width: min(860px, 92%); }
  .home-about-grid { gap: 42px; }
  .home-about-copy p { font-size: 15px; }
}

@media (max-width: 720px) {
  :root { --header-height: 64px; }
  .section { padding-block: 68px; }
  .site-header,
  .site-header:not(.scrolled),
  .site-header.scrolled { height: var(--header-height); }
  .hero { min-height: 640px; height: calc(100svh - var(--header-height)); }
  .hero-bg {
    inset: 0;
    width: 100%;
    height: 100%;
    border-radius: 0;
  }
  .hero-slide::after {
    background: linear-gradient(0deg, rgba(6, 25, 22, .68) 0%, rgba(6, 25, 22, .28) 72%, rgba(6, 25, 22, .42) 100%);
  }
  .hero-content { align-items: center; padding: 64px 0 92px; }
  .hero-copy { width: 100%; }
  .hero-kicker { margin-bottom: 20px; font-size: 17px; }
  .hero h1 { font-size: clamp(40px, 11.5vw, 58px); line-height: 1.18; }
  .hero-bottom { bottom: 22px; }
  .scroll-hint { display: none; }
  .home-about-grid { grid-template-columns: 1fr; gap: 34px; }
  .home-about-copy { order: 2; }
  .home-about-media { order: 1; }
  .home-about-copy p { font-size: 14px; line-height: 1.9; text-align: left; }
  .home-about-link { margin-top: 22px; }
  .product-showcase {
    grid-template-columns: 1fr;
    align-content: center;
    min-height: 760px;
    padding: 64px 17px;
  }
  .product-detail { padding: 0; }
  .product-detail h3 { margin-bottom: 20px; font-size: 32px; }
  .product-detail p { min-height: 0; font-size: 14px; line-height: 1.85; }
  .product-more { margin-top: 22px; }
  .product-tabs {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    margin-top: 42px;
  }
  .product-tab { min-width: 0; padding-inline: 10px; text-align: center; }
  .page-hero,
  .page-hero.compact { min-height: 620px; height: 78svh; }
  .page-hero > img {
    inset: 80px 17px auto;
    width: calc(100% - 34px);
    height: 38%;
    border-radius: 10px;
  }
  .page-hero::after {
    background: linear-gradient(0deg, var(--page-blue) 0%, var(--page-blue) 47%, rgba(237,247,251,.25) 70%, transparent 88%);
  }
  .page-hero .hero-content { justify-content: flex-end; padding: 47% 0 46px; }
  .page-hero h1,
  .page-hero p { max-width: 100%; }
  .local-nav { top: 63px; }
  .footer-grid { gap: 36px; }
}

@media (max-width: 720px) {
  .about-page .page-hero {
    min-height: 620px;
    height: 78svh;
  }
  .about-page .page-hero > img {
    inset: 0;
    width: 100%;
    height: 100%;
    border-radius: 0;
    object-position: 58% center;
  }
  .about-page .page-hero::after {
    background: linear-gradient(0deg, rgba(52, 31, 11, .62) 0%, rgba(52, 31, 11, .18) 76%);
  }
  .about-page .page-hero .hero-content {
    justify-content: flex-end;
    padding: 110px 0 70px;
  }
  .about-page .page-hero .page-kicker { margin-bottom: 18px; font-size: 14px; }
  .about-page .page-hero h1 { max-width: 100%; font-size: clamp(34px, 9.6vw, 48px); line-height: 1.4; }
  .about-page #company .about-intro { grid-template-columns: 1fr; gap: 38px; }
  .about-page #company .about-visual { order: -1; }
  .about-page #company .about-stats { grid-template-columns: repeat(2, 1fr); gap: 34px 24px; margin-top: 48px; padding: 0; }
  .about-page #company .about-stat strong { font-size: 48px; }
  .about-page #company .about-stat span { margin-top: 10px; font-size: 16px; }
  .about-page .culture .culture-head { align-items: flex-start; margin-bottom: 32px; padding-bottom: 24px; }
  .about-page .culture .culture-grid--six { grid-template-columns: 1fr; gap: 14px; }
  .about-page .culture .culture-card { min-height: auto; padding: 26px 26px 28px; }
  .about-page .culture .culture-card:hover { transform: none; }
  .about-page .culture .culture-card h3 { margin-top: 22px; font-size: 22px; }
  .about-page .culture .culture-card p { font-size: 15px; }
  .about-page .culture .culture-card--service p { font-size: 14px; }
}

/* 企业资源：完整展示企业全球资源合作分布图。 */
.about-page .resource-map {
  min-height: 0;
  aspect-ratio: 1004 / 594;
  background: var(--page-white);
  border: 1px solid var(--line);
  box-shadow: 0 14px 36px rgba(35, 96, 137, .08);
}
.about-page .resource-map > img {
  width: 100%;
  height: 100%;
  min-height: 0;
  object-fit: cover;
  transform: scale(1.018);
}

@media (max-width: 720px) {
  .about-page .resource-map {
    height: auto;
    min-height: 0;
    aspect-ratio: 1004 / 594;
  }
  .about-page .resource-map > img {
    height: 100%;
    min-height: 0;
  }
}

/* 企业发展历程：桌面端沿横向 S 形时间线展开。 */
.about-page .company-timeline {
  position: relative;
  width: 100%;
  margin: 56px auto 0;
  padding: 0;
}
.about-page .company-timeline::after {
  content: "";
  position: absolute;
  top: 172px;
  right: 10%;
  width: 2.5%;
  height: 396px;
  border: 2px solid var(--line);
  border-left: 0;
  border-radius: 0 28px 28px 0;
}
.about-page .company-timeline-row {
  position: relative;
  display: flex;
  min-height: 190px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.about-page .company-timeline-row::before {
  content: "";
  position: absolute;
  top: 24px;
  height: 2px;
  background: var(--line);
}
.about-page .company-timeline-row--first::before {
  top: 172px;
  right: 12.5%;
  left: 12.5%;
}
.about-page .company-timeline-row--first {
  min-height: 350px;
}
.about-page .company-timeline-row--second {
  flex-direction: row-reverse;
  min-height: 350px;
  margin-top: 46px;
}
.about-page .company-timeline-row--second::before {
  top: 172px;
  right: 12.5%;
  left: 12.5%;
}
.about-page .company-timeline-row li {
  position: relative;
  flex: 1 1 0;
  min-width: 0;
  padding: 54px 8px 0;
  text-align: center;
}
.about-page .company-timeline-row li::before {
  content: "";
  position: absolute;
  top: 16px;
  left: 50%;
  z-index: 1;
  width: 14px;
  height: 14px;
  transform: translateX(-50%);
  background: var(--page-white);
  border: 3px solid var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 0 6px var(--accent-soft);
}
.about-page .company-timeline-row--first li {
  padding-top: 202px;
}
.about-page .company-timeline-row--first li::before {
  top: 164px;
}
.about-page .company-timeline-row--second li {
  padding-top: 202px;
}
.about-page .company-timeline-row--second li::before {
  top: 164px;
}
.about-page .company-timeline-row--first li:nth-child(2),
.about-page .company-timeline-row--first li:last-child,
.about-page .company-timeline-row--second li:nth-child(2),
.about-page .company-timeline-row--second li:last-child {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 0 8px 202px;
}
.about-page .company-timeline time {
  display: block;
  color: var(--accent);
  text-align: center;
  white-space: nowrap;
}
.about-page .company-timeline time strong {
  font: 500 30px/1 Georgia, serif;
}
.about-page .company-timeline time span {
  margin-left: 4px;
  font-size: 14px;
}
.about-page .company-timeline-content {
  min-height: 84px;
  margin-top: 14px;
  padding: 17px 14px;
  background: var(--page-blue);
  border: 1px solid var(--line);
  border-radius: 12px;
}
.about-page .company-timeline-content p {
  margin: 0;
  color: var(--ink);
  font-size: 14px;
  line-height: 1.7;
}

@media (max-width: 720px) {
  .about-page .company-timeline {
    margin-top: 38px;
  }
  .about-page .company-timeline::before {
    content: "";
    position: absolute;
    top: 8px;
    bottom: 28px;
    left: 8px;
    width: 2px;
    background: var(--line);
  }
  .about-page .company-timeline::after {
    display: none;
  }
  .about-page .company-timeline-row,
  .about-page .company-timeline-row--second {
    display: block;
    min-height: 0;
    margin: 0;
  }
  .about-page .company-timeline-row::before {
    display: none;
  }
  .about-page .company-timeline-row li {
    display: block;
    min-height: 0;
    padding: 0 0 24px 34px;
    text-align: left;
  }
  .about-page .company-timeline-row--first li:nth-child(2),
  .about-page .company-timeline-row--first li:last-child,
  .about-page .company-timeline-row--second li:nth-child(2),
  .about-page .company-timeline-row--second li:last-child {
    display: block;
    padding: 0 0 24px 34px;
  }
  .about-page .company-timeline-row li::before {
    top: 8px;
    left: 0;
    transform: none;
  }
  .about-page .company-timeline time {
    display: block;
    margin-bottom: 12px;
    text-align: left;
  }
  .about-page .company-timeline time strong {
    font-size: 30px;
  }
  .about-page .company-timeline-content {
    min-height: 0;
    margin-top: 0;
    padding: 20px 22px;
  }
  .about-page .company-timeline-content p {
    font-size: 15px;
  }
}

/* 首页按钮体系：统一尺寸、圆角、品牌色与交互反馈。 */
.home-page {
  --home-button-height: 46px;
  --home-button-radius: 11px;
  --home-button-accent: #2f7883;
  --home-button-accent-hover: #225f69;
  --home-button-ring: rgba(105, 184, 199, .42);
  --home-button-shadow: 0 8px 20px rgba(25, 79, 89, .14);
  --home-button-shadow-hover: 0 12px 28px rgba(25, 79, 89, .22);
}

.home-page :is(.header-action, .home-about-link, .product-more, .text-link, .btn) {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--home-button-height);
  padding: 0 20px;
  border-radius: var(--home-button-radius);
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: .025em;
  cursor: pointer;
  transition: color .22s ease, background-color .22s ease, border-color .22s ease,
    box-shadow .22s ease, transform .22s ease;
}

.home-page :is(.home-about-link, .btn-primary) {
  color: #fff;
  background: var(--home-button-accent);
  border: 1px solid var(--home-button-accent);
  box-shadow: var(--home-button-shadow);
}

.home-page :is(.home-about-link, .btn-primary):hover {
  color: #fff;
  background: var(--home-button-accent-hover);
  border-color: var(--home-button-accent-hover);
  box-shadow: var(--home-button-shadow-hover);
  transform: translateY(-2px);
}

.home-page :is(.home-about-link, .product-more)::after {
  content: "→";
  margin-left: 10px;
  font-size: 16px;
  font-weight: 500;
  transition: transform .22s ease;
}

.home-page :is(.home-about-link, .product-more):hover::after {
  transform: translateX(3px);
}

/* 顶部按钮始终使用导航栏的浅色配色。 */
.home-page .header-action {
  min-width: 118px;
  min-height: 42px;
  height: 42px;
  color: var(--home-button-accent);
  background: rgba(255, 255, 255, .92);
  border: 1px solid rgba(47, 120, 131, .42);
  box-shadow: 0 5px 16px rgba(18, 61, 69, .08);
}

.home-page .header-action:hover,
.home-page .site-header:not(.scrolled) .header-action:hover {
  color: #fff;
  background: var(--home-button-accent);
  border-color: var(--home-button-accent);
  box-shadow: var(--home-button-shadow);
  transform: translateY(-1px);
}

/* 正文操作按钮采用同一品牌按钮，仅按深浅背景切换配色。 */
.home-page .home-about-link {
  min-width: 126px;
  margin-top: 30px;
}

.home-page .product-more {
  min-width: 128px;
  margin-top: 30px;
  color: var(--home-button-accent-hover);
  background: rgba(255, 255, 255, .94);
  border: 1px solid rgba(255, 255, 255, .82);
  box-shadow: 0 8px 22px rgba(0, 26, 24, .2);
  backdrop-filter: blur(10px);
}

.home-page .product-more:hover {
  color: var(--home-button-accent-hover);
  background: #fff;
  border-color: #fff;
  box-shadow: 0 12px 30px rgba(0, 26, 24, .26);
  transform: translateY(-2px);
}

.home-page .text-link {
  min-height: 42px;
  padding-inline: 16px;
  color: var(--home-button-accent-hover);
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: 0 4px 14px rgba(25, 79, 89, .06);
}

.home-page .text-link:hover {
  color: #fff;
  background: var(--home-button-accent);
  border-color: var(--home-button-accent);
  box-shadow: var(--home-button-shadow);
  transform: translateY(-1px);
}

/* 产品分类保留分组语义，用一致的高度和圆角强化选中状态。 */
.home-page .product-tabs { gap: 10px; }

.home-page .product-tab {
  min-height: 44px;
  padding: 8px 16px;
  color: #fff;
  background: rgba(5, 47, 43, .34);
  border: 1px solid rgba(255, 255, 255, .38);
  border-radius: var(--home-button-radius);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.2;
  cursor: pointer;
  backdrop-filter: blur(10px);
  transition: color .22s ease, background-color .22s ease, border-color .22s ease,
    box-shadow .22s ease, transform .22s ease;
}

.home-page .product-tab:hover {
  color: #fff;
  background: rgba(255, 255, 255, .18);
  border-color: rgba(255, 255, 255, .7);
  box-shadow: 0 7px 18px rgba(0, 27, 24, .15);
  transform: translateX(-3px);
}

.home-page .product-tab.active,
.home-page .product-tab[aria-selected="true"] {
  color: var(--home-button-accent-hover);
  background: #fff;
  border-color: #fff;
  box-shadow: 0 8px 22px rgba(0, 27, 24, .22);
  font-weight: 700;
}

/* 图标按钮保留各自形态，同时统一边框、阴影和键盘焦点。 */
.home-page .play {
  width: 84px;
  height: 84px;
  color: var(--home-button-accent-hover);
  background: rgba(255, 255, 255, .94);
  border: 1px solid rgba(255, 255, 255, .84);
  box-shadow: 0 0 0 10px rgba(255, 255, 255, .12), 0 14px 34px rgba(7, 40, 37, .2);
  transition: background-color .22s ease, box-shadow .22s ease, transform .22s ease;
}

.home-page .video-stage:hover .play,
.home-page .play:hover {
  background: #fff;
  box-shadow: 0 0 0 14px rgba(255, 255, 255, .11), 0 18px 40px rgba(7, 40, 37, .26);
  transform: translateY(-50%) scale(1.05);
}

.home-page .dot {
  position: relative;
  width: 30px;
  height: 24px;
  padding: 0;
  background: transparent;
  border: 0;
  border-radius: 6px;
}

.home-page .dot::before {
  content: "";
  position: absolute;
  inset: 50% 0 auto;
  height: 3px;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, .42);
  border-radius: 999px;
  transition: background-color .22s ease, transform .22s ease;
}

.home-page .dot:hover::before { background: rgba(255, 255, 255, .72); }
.home-page .dot.active { width: 50px; background: transparent; }
.home-page .dot.active::before { background: #fff; }

.home-page .menu-toggle {
  width: 44px;
  height: 44px;
  border-radius: var(--home-button-radius);
  transition: color .22s ease, background-color .22s ease, border-color .22s ease;
}

.home-page .menu-toggle:hover { background: rgba(255, 255, 255, .12); }

.home-page .modal-close {
  width: 44px;
  height: 44px;
  background: rgba(255, 255, 255, .13);
  border: 1px solid rgba(255, 255, 255, .28);
  transition: background-color .22s ease, border-color .22s ease, transform .22s ease;
}

.home-page .modal-close:hover {
  background: rgba(255, 255, 255, .24);
  border-color: rgba(255, 255, 255, .52);
  transform: rotate(5deg);
}

.home-page :is(
  .header-action,
  .home-about-link,
  .product-more,
  .text-link,
  .btn,
  .product-tab,
  .play,
  .dot,
  .menu-toggle,
  .modal-close,
  .mobile-nav > a,
  .mobile-nav button
):focus-visible {
  outline: 3px solid var(--home-button-ring);
  outline-offset: 3px;
}

@media (max-width: 720px) {
  .home-page { --home-button-height: 44px; }

  .home-page :is(.home-about-link, .product-more, .text-link, .btn) {
    min-height: 44px;
    padding-inline: 17px;
  }

  .home-page .product-tab {
    min-height: 44px;
    padding-inline: 12px;
  }

  .home-page .product-tab:hover { transform: none; }
  .home-page .play { width: 72px; height: 72px; }
}

@media (prefers-reduced-motion: reduce) {
  .home-page :is(.header-action, .home-about-link, .product-more, .text-link, .btn, .product-tab, .play, .modal-close):hover {
    transform: none;
  }
}

/* 顶部导航视觉优化：紧凑、清晰的层级。 */
@media (min-width: 1061px) {
  .header-inner { gap: 18px; }
  .desktop-nav {
    align-items: center;
    height: auto;
    gap: 2px;
  }
  .nav-item {
    padding: 0;
    color: #000;
    font-size: 20px;
    font-weight: 700;
  }
  .nav-item > a {
    height: 44px;
    padding: 0 12px;
    border-radius: 12px;
    letter-spacing: .01em;
    line-height: 1;
    transition: color .22s ease, background-color .22s ease, box-shadow .22s ease, transform .22s ease;
  }
  .nav-item > a::after {
    left: 13px;
    right: 13px;
    bottom: 6px;
    height: 3px;
    border-radius: 999px;
  }
  .nav-item:hover > a,
  .nav-item:focus-within > a,
  .nav-item.active > a {
    color: #000;
    background: var(--accent-soft);
    box-shadow: 0 6px 16px rgba(47, 120, 131, .08);
    transform: translateY(-1px);
  }
  .dropdown {
    top: calc(100% + 10px);
    padding: 10px;
    border-color: rgba(47, 120, 131, .16);
    border-radius: 14px;
    box-shadow: 0 20px 55px rgba(23, 64, 70, .14);
  }
  .dropdown a { border-radius: 9px; }
  .site-header .header-action { min-width: 126px; font-size: 20px; }
  .home-page .site-header:not(.scrolled) .nav-item:hover > a,
  .home-page .site-header:not(.scrolled) .nav-item:focus-within > a,
  .home-page .site-header:not(.scrolled) .nav-item.active > a {
    color: #000;
    background: rgba(255, 255, 255, .15);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .14);
  }
  .home-page .site-header:not(.scrolled) .nav-item > a::after { background: #fff; }
}

@media (max-width: 1060px) {
  .menu-open .site-header,
  .menu-open .site-header:not(.scrolled) {
    color: var(--ink);
    background: rgba(255, 255, 255, .96);
    border-color: var(--line);
    box-shadow: 0 8px 26px rgba(23, 64, 70, .08);
    backdrop-filter: blur(18px);
  }
  .menu-toggle {
    width: 44px;
    height: 44px;
    border-radius: 13px;
    background: rgba(255, 255, 255, .1);
    transition: color .22s ease, background-color .22s ease, border-color .22s ease, box-shadow .22s ease;
  }
  .menu-open .menu-toggle {
    color: var(--accent-deep);
    background: var(--accent-soft);
    border-color: rgba(47, 120, 131, .28);
    box-shadow: 0 6px 18px rgba(47, 120, 131, .1);
  }
  .mobile-panel {
    padding: 94px 20px 34px;
    background:
      radial-gradient(circle at 92% 8%, rgba(143, 197, 232, .2), transparent 30%),
      linear-gradient(180deg, rgba(255, 255, 255, .99), rgba(243, 248, 250, .98));
  }
  .mobile-nav { display: grid; gap: 8px; }
  .mobile-nav > a,
  .mobile-nav > .mobile-group > button {
    min-height: 54px;
    padding: 12px 15px;
    color: var(--ink);
    background: rgba(255, 255, 255, .78);
    border: 1px solid rgba(47, 120, 131, .14);
    border-radius: 15px;
    box-shadow: 0 7px 20px rgba(23, 64, 70, .045);
    font-size: 28px;
    font-weight: 600;
    line-height: 1.25;
    transition: color .22s ease, background-color .22s ease, border-color .22s ease, box-shadow .22s ease;
  }
  .mobile-nav > a:hover,
  .mobile-nav > a:focus-visible,
  .mobile-group.expanded > button {
    color: var(--accent-deep);
    background: var(--accent-soft);
    border-color: rgba(47, 120, 131, .28);
    box-shadow: 0 10px 24px rgba(47, 120, 131, .09);
  }
  .mobile-plus {
    width: 30px;
    height: 30px;
    display: grid;
    place-items: center;
    flex: 0 0 30px;
    background: rgba(47, 120, 131, .09);
    border-radius: 10px;
    font-size: 20px;
  }
  .mobile-sub {
    margin: 4px 10px 8px 18px;
    padding-left: 12px;
    border-left: 2px solid rgba(47, 120, 131, .2);
  }
  .mobile-sub a {
    margin: 3px 0;
    padding: 11px 14px;
    color: var(--ink-soft);
    border-radius: 9px;
    font-size: 18px;
    line-height: 1.45;
    transition: color .2s ease, background-color .2s ease, transform .2s ease;
  }
  .mobile-sub a:hover,
  .mobile-sub a:focus-visible {
    color: var(--accent-deep);
    background: rgba(47, 120, 131, .08);
    transform: translateX(3px);
  }
}

/* Footer social QR strip */
.footer-social {
  display: grid;
  grid-template-columns: minmax(150px, .72fr) repeat(3, minmax(0, 1fr));
  gap: clamp(18px, 3vw, 42px);
  align-items: center;
  padding: 30px 0;
  border-top: 1px solid var(--line);
}
.footer-social__intro h3 {
  margin: 0 0 9px;
  color: var(--ink);
  font-size: 16px;
  line-height: 1.5;
}
.footer-social__intro p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.7;
}
.footer-qr {
  display: grid;
  grid-template-columns: 104px minmax(0, 1fr);
  gap: 15px;
  align-items: center;
  min-width: 0;
}
.footer-qr__media {
  position: relative;
  width: 104px;
  aspect-ratio: 1;
  overflow: hidden;
  background: #fff;
  border: 1px solid rgba(22, 67, 61, .12);
  border-radius: 10px;
  box-shadow: 0 8px 22px rgba(25, 65, 61, .08);
}
.footer-qr__media img {
  position: absolute;
  display: block;
  max-width: none;
}
.footer-qr__image--official { inset: 0; width: 100%; height: 100%; object-fit: cover; }
.footer-qr__image--channels { top: -48%; left: -20%; width: 138%; height: auto; }
.footer-qr__image--douyin { top: -33%; left: -28%; width: 156%; height: auto; }
.footer-qr__copy strong {
  display: block;
  margin-bottom: 5px;
  color: var(--ink);
  font-size: 14px;
  line-height: 1.45;
}
.footer-qr__copy span {
  display: block;
  color: var(--ink-soft);
  font-size: 12px;
  line-height: 1.6;
}
@media (max-width: 1060px) {
  .footer-social {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
  }
  .footer-social__intro { grid-column: 1 / -1; }
  .footer-qr { grid-template-columns: 92px minmax(0, 1fr); }
  .footer-qr__media { width: 92px; }
}
@media (max-width: 720px) {
  .footer-social {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 26px 0;
  }
  .footer-qr {
    grid-template-columns: 112px minmax(0, 1fr);
    gap: 18px;
    padding: 10px;
    background: rgba(255,255,255,.58);
    border: 1px solid var(--line);
    border-radius: 12px;
  }
  .footer-qr__media { width: 112px; }
}