/* Generated by scripts/build-page-styles.py; edit the source styles. */
/* Source: styles.css */
:root{--bg: #f4f6f8;
  --surface: #ffffff;
  --surface-soft: #eef2f5;
  --ink: #111a24;
  --ink-soft: #5b6878;
  --line: #d7dee6;
  --accent: #006d77;
  --accent-dark: #0d3b4a;
  --max: 1200px;}
*{box-sizing: border-box;}
html,body{margin: 0;
  padding: 0;
  overflow-x: hidden;}
body{font-family: "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;}
img,video{max-width: 100%;}
a{color: inherit;}
.topbar{position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(1rem, 3vw, 2.8rem);
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid rgba(17, 26, 36, 0.08);
  backdrop-filter: blur(10px);}
.brand{display: inline-flex;
  align-items: center;
  gap: 0.72rem;
  text-decoration: none;}
.brand small{display: block;
  margin-top: 0.08rem;
  color: var(--ink-soft);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;}
.desktop-nav{display: inline-flex;
  gap: clamp(0.9rem, 2vw, 1.5rem);}
.desktop-nav a{text-decoration: none;
  color: var(--ink-soft);
  font-size: 0.92rem;
  font-weight: 700;}
.desktop-nav a:hover,.desktop-nav a.active{color: var(--ink);}
.menu-btn{position: relative;
  width: 2.35rem;
  height: 2.35rem;
  display: none;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  border: 1px solid rgba(17, 26, 36, 0.14);
  background: #fff;}
.menu-btn span{position: absolute;
  left: 50%;
  top: 50%;
  width: 1rem;
  height: 2px;
  margin: 0;
  background: var(--ink);
  transition: transform 0.2s ease;}
.menu-btn span:first-child{transform: translate(-50%, calc(-50% - 4px));}
.menu-btn span:last-child{transform: translate(-50%, calc(-50% + 4px));}
.menu-btn.is-open span:first-child{transform: translate(-50%, -50%) rotate(45deg);}
.menu-btn.is-open span:last-child{transform: translate(-50%, -50%) rotate(-45deg);}
.mobile-menu{position: fixed;
  inset: 72px 0 auto;
  z-index: 40;
  display: grid;
  gap: 0.45rem;
  padding: 0.85rem 1rem 1rem;
  background: rgba(255, 255, 255, 0.98);
  border-bottom: 1px solid var(--line);
  transform: translateY(-120%);
  transition: transform 0.25s ease;}
.mobile-menu.is-open{transform: translateY(0);}
.mobile-menu a{text-decoration: none;
  font-weight: 700;
  padding: 0.25rem 0;}
main{padding-top: 72px;}
.section{width: min(var(--max), calc(100% - 2.4rem));
  margin-left: auto;
  margin-right: auto;}
@keyframes legacy-hero-in {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}
h1,h2,h3{margin: 0;
  font-family: "Noto Sans SC", sans-serif;
  line-height: 1.18;}
h1{font-size: 3.75rem;
  max-width: 12ch;}
h2{font-size: 2.35rem;}
.section{padding: clamp(3.2rem, 7vw, 5.4rem) 0;
  border-top: 1px solid rgba(17, 26, 36, 0.05);}
.product-row{display: grid;
  grid-template-columns: minmax(240px, 340px) minmax(0, 1fr);
  gap: 1.5rem;
  align-items: center;
  padding: 1.15rem;
  background: var(--surface);
  border: 1px solid var(--line);}
.desktop-nav{gap: clamp(0.65rem, 1.2vw, 1.05rem);}
.desktop-nav a{white-space: nowrap;}
@media (max-width: 900px) {
.product-row{grid-template-columns: 1fr;}
}
@media (max-width: 760px) {
.topbar{height: 64px;}
main{padding-top: 64px;}
.desktop-nav{display: none;}
.menu-btn{display: grid;}
.mobile-menu{inset: 64px 0 auto;}
h1{max-width: none;
    font-size: 2.35rem;}
}
@media (prefers-reduced-motion: reduce) {
*,*::before,*::after{animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;}
}
.product-row{border-radius: 1rem;
  transition: transform 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;}
.product-row:hover{transform: translateY(-3px);
  border-color: rgba(0, 109, 119, 0.24);
  box-shadow: 0 18px 38px rgba(17, 26, 36, 0.08);}
@media (max-width: 1100px) {
.desktop-nav{display: none;}
.menu-btn{display: grid;}
}
.mobile-contact-bar{position: fixed;
  left: 0.75rem;
  right: 0.75rem;
  bottom: 0.75rem;
  z-index: 60;
  display: none;
  grid-template-columns: 1fr 1fr;
  gap: 0.55rem;
  padding: 0.55rem;
  border: 1px solid rgba(17, 26, 36, 0.12);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 18px 42px rgba(17, 26, 36, 0.18);
  backdrop-filter: blur(12px);}
.mobile-contact-bar a{display: inline-flex;
  min-height: 2.6rem;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 800;}
.mobile-contact-bar a:first-child{background: var(--accent-dark);
  color: #fff;}
.mobile-contact-bar a:last-child{color: var(--ink);
  background: var(--surface-soft);}
@media (max-width: 760px) {
body{padding-bottom: 4.75rem;}
.section{width: min(var(--max), calc(100% - 1.25rem));}
.mobile-contact-bar{display: grid;}
}
:root{--bg: #f4f6f8;
  --surface: #ffffff;
  --surface-soft: #edf2f4;
  --ink: #111a24;
  --ink-soft: #566373;
  --line: #d4dce4;
  --accent: #006d77;
  --accent-dark: #064854;
  --status: #c06a22;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --space-page: clamp(1.25rem, 4vw, 3.75rem);
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-latin: "Manrope", "Noto Sans SC", sans-serif;}
body{font-family: var(--font-body);
  background: var(--bg);
  letter-spacing: 0;}
h1,h2,h3{font-family: var(--font-latin);
  letter-spacing: 0;}
:focus-visible{outline: 3px solid rgba(0, 109, 119, 0.38);
  outline-offset: 3px;}
.topbar{height: 68px;
  padding: 0 var(--space-page);
  background: rgba(255, 255, 255, 0.96);
  border-bottom-color: rgba(17, 26, 36, 0.1);
  backdrop-filter: blur(14px);}
main{padding-top: 68px;}
.brand small{letter-spacing: 0;
  text-transform: none;}
.desktop-nav{align-items: center;
  gap: clamp(0.55rem, 1vw, 0.9rem);}
.desktop-nav a{display: inline-flex;
  min-height: 2.25rem;
  align-items: center;
  padding: 0 0.2rem;
  font-size: 0.9rem;
  letter-spacing: 0;}
.menu-btn,.mobile-contact-bar,.mobile-contact-bar a{border-radius: var(--radius-md);}
.section{padding: clamp(3.1rem, 6vw, 5.8rem) 0;
  border-top-color: rgba(17, 26, 36, 0.08);}
.section h2{max-width: 18ch;
  font-size: clamp(2rem, 4.2vw, 4.1rem);
  line-height: 1.06;}
.product-row{border-radius: var(--radius-lg);
  box-shadow: none;}
.product-row:hover{transform: translateY(-2px);
  border-color: rgba(0, 109, 119, 0.28);
  box-shadow: none;}
.product-row{grid-template-columns: minmax(300px, 0.42fr) minmax(0, 0.58fr);
  gap: clamp(1.2rem, 3vw, 2.6rem);
  padding: clamp(0.9rem, 1.8vw, 1.2rem);
  border-color: rgba(17, 26, 36, 0.12);}
.product-row + .product-row{margin-top: 0.25rem;}
@media (max-width: 1080px) {
.desktop-nav{display: none;}
.menu-btn{display: grid;}
}
@media (max-width: 900px) {
.product-row{grid-template-columns: 1fr;}
}
@media (max-width: 760px) {
.topbar{height: 64px;
    padding: 0 1rem;}
main{padding-top: 64px;}
.brand small{display: none;}
.mobile-menu{inset: 64px 0 auto;
    padding: 0.9rem 1rem 1.15rem;}
.mobile-menu a{min-height: 2.65rem;
    display: flex;
    align-items: center;
    border-bottom: 1px solid rgba(17, 26, 36, 0.08);}
.section h2{font-size: clamp(1.9rem, 8vw, 2.55rem);}
}
@media (prefers-reduced-motion: reduce) {
[data-reveal]{opacity: 1 !important;
    transform: none !important;
    animation: none !important;}
}
@media (max-width: 1100px) {
html:not(.legacy-menu-ready) .menu-btn{display: none !important;}
html:not(.legacy-menu-ready) .mobile-menu{position: static;
    inset: auto;
    transform: none;}
}
/* Source: site-v3.css */
:root{--yt-ink:var(--color-ink, #172334); --yt-muted:var(--color-muted, #526273);
 --yt-line:var(--color-rule, #d7dfe8); --yt-paper:var(--color-paper, #fff);
 --yt-ground:var(--color-ground, #f3f6fa); --yt-blue:var(--color-brand, #2053b6);
 --yt-cyan:var(--color-brand, #2053b6); --yt-orange:var(--color-focus, #a34712);
 --yt-max:var(--content-max, 1280px);}
body.site-v3{background: var(--yt-paper);
  color: var(--yt-ink);
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.6;}
.site-v3 main{padding-top: 0 !important;}
.site-v3 *,.site-v3 *::before,.site-v3 *::after{box-sizing: border-box;}
.site-v3 a{color: inherit; text-decoration: none;}
.site-v3 img{display: block; max-width: 100%;}
.site-v3 button{font: inherit;}
.site-v3 .v3-wrap{width: min(var(--yt-max), calc(100% - var(--page-gutter, 32px) * 2)); margin: 0 auto;}
.site-v3 .v3-link{display: inline-flex; align-items: center; min-height: 44px; gap: 12px; font-weight: 700; white-space: nowrap;}
.site-v3 .v3-link::after{content: "→"; font-size: 22px; transition: transform .25s ease;}
.site-v3 .v3-link:hover::after{transform: translateX(5px);}
.site-v3 .topbar{position: relative; z-index: 30; height:auto; padding:0; min-height: 78px; border-bottom: 1px solid #e1e6e9; background: #fff;}
.site-v3 .topbar-inner{width: min(var(--yt-max), calc(100% - var(--page-gutter, 32px) * 2)); min-height: 78px; margin: 0 auto; display: flex; flex-wrap:wrap; align-items: center; justify-content: space-between; gap: 24px;}
.site-v3 .brand{display: inline-flex; align-items: center; min-width: 190px; min-height: 44px; gap: 12px; font-size: 17px; font-weight: 800; letter-spacing: 0;}
.site-v3 .brand img{width: 37px; height: 37px; object-fit: contain;}
.site-v3 .main-nav{display: flex; flex-wrap:wrap; align-items: center; gap: 29px; font-size: 15px;}
.site-v3 .main-nav a{position: relative; display:inline-flex; align-items:center; justify-content:center; min-width:44px; white-space:nowrap; padding: 29px 0 26px; color: #28343d;}
.site-v3 .main-nav a::after{content: ""; position: absolute; left: 0; right: 0; bottom: 20px; height: 2px; background: var(--yt-orange); transform: scaleX(0); transform-origin: left; transition: transform .22s ease;}
.site-v3 .main-nav a:hover::after,.site-v3 .main-nav a:is([aria-current="page"], [aria-current="true"])::after{transform: scaleX(1);}
.site-v3 .v3-consult{display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 0 18px; border: 1px solid var(--yt-ink); border-radius: var(--radius-control); background: var(--yt-ink); color: #fff; font-size: 14px; font-weight: 700; transition: background .2s ease, border-color .2s ease;}
.site-v3 .v3-consult:hover{background: var(--yt-orange); border-color: var(--yt-orange);}
.site-v3 .menu-toggle{position: relative; display: none; width: 44px; height: 44px; padding: 0; border: 1px solid var(--yt-line); border-radius: 4px; background: transparent; color: var(--yt-ink); font-size: 0;}
.site-v3 .menu-toggle::before,.site-v3 .menu-toggle::after{content: ""; position: absolute; left: 50%; top: 50%; width: 17px; height: 2px; background: currentColor; transition: transform .2s ease;}
.site-v3 .menu-toggle::before{transform: translate(-50%, -4px);}
.site-v3 .menu-toggle::after{transform: translate(-50%, 4px);}
.site-v3 .menu-toggle.is-open::before{transform: translate(-50%, 0) rotate(45deg);}
.site-v3 .menu-toggle.is-open::after{transform: translate(-50%, 0) rotate(-45deg);}
.site-v3 .footer-privacy{display: inline-flex; align-items: center; min-width: 44px; min-height: 44px; color: inherit; text-decoration: underline; text-underline-offset: 4px;}
.site-v3 a:focus-visible,.site-v3 button:focus-visible{outline: 3px solid #ff9c63; outline-offset: 4px;}
@media (max-width: 1080px) {
.site-v3 .main-nav{gap: 18px;}
.site-v3 .brand{min-width: auto; font-size: 15px;}
}
@media (max-width: 1080px) {
.site-v3 .menu-toggle{display: block;}
.site-v3 .main-nav{position: absolute; top: 78px; left: 0; right: 0; display: none; padding: 12px 32px 22px; border-bottom: 1px solid #ced8dc; background: #fff; box-shadow: 0 12px 22px rgba(16,25,35,.1);}
.site-v3 .main-nav.is-open{display: grid;}
.site-v3 .main-nav a{min-height: 46px; padding: 12px 0; color: var(--yt-ink);}
.site-v3 .main-nav a::after{display: none;}
.site-v3 .topbar .v3-consult{display: none;}
}
@media (max-width: 760px) {
.site-v3 .v3-wrap,.site-v3 .topbar-inner{width: min(100% - 36px, var(--yt-max));}
.site-v3 .topbar,.site-v3 .topbar-inner{min-height: 66px;}
.site-v3 .brand{gap: 8px; font-size: 14px;}
.site-v3 .brand img{width: 31px; height: 31px;}
.site-v3 .menu-toggle{display: block;}
.site-v3 .main-nav{position: absolute; top: 66px; left: 0; right: 0; display: none; padding: 12px 18px 22px; border-bottom: 1px solid #ced8dc; background: #fff; box-shadow: 0 12px 22px rgba(16,25,35,.1);}
.site-v3 .main-nav.is-open{display: grid;}
.site-v3 .main-nav a{padding: 12px 0; color: var(--yt-ink);}
.site-v3 .main-nav a::after{display: none;}
.site-v3 .topbar .v3-consult{display: none;}
}
@media (prefers-reduced-motion: reduce) {
.site-v3 *,.site-v3 *::before,.site-v3 *::after{scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important;}
}
@media (max-width: 1080px) {
html:not(.menu-ready) .site-v3 .menu-toggle{display: none !important;}
html:not(.menu-ready) .site-v3 .main-nav{display: grid;}
}
/* Source: vision-product-v4.css */
:root{--v4-product-paper: var(--yt-paper, #ffffff);
  --v4-product-soft: var(--yt-ground, #f3f5f6);
  --v4-product-ink: var(--yt-ink, #101923);
  --v4-product-muted: var(--yt-muted, #647280);
  --v4-product-line: var(--yt-line, #d9e0e5);
  --v4-product-blue: var(--yt-blue, #006d77);
  --v4-product-dark: #111a24;
  --v4-product-orange: var(--yt-orange, #ef6b2e);
  --v4-product-body: "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --v4-product-display: Manrope, Arial, sans-serif;}
.site-v3.product-record{background: var(--v4-product-paper); color: var(--v4-product-ink);}
.site-v3.product-record .product-intro{padding: 92px 0 84px; background: var(--v4-product-soft);}
.site-v3.product-record .product-section-head{display: grid; grid-template-columns: minmax(0, .9fr) minmax(280px, 1.1fr); gap: 72px; align-items: end; margin-bottom: 42px;}
.site-v3.product-record .product-eyebrow{margin: 0 0 12px; color: var(--v4-product-orange); font-family: var(--v4-product-display); font-size: 12px; font-weight: 800; letter-spacing: .08em;}
.site-v3.product-record .product-section-head h2{margin: 0; font-size: clamp(32px, 3.8vw, 52px); line-height: 1.12;}
.site-v3.product-record .product-section-head > p{max-width: 540px; margin: 0; color: var(--v4-product-muted); font-size: 16px;}
.site-v3.product-record .product-proof-grid{display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--v4-product-line); border-left: 1px solid var(--v4-product-line);}
.site-v3.product-record .product-proof{min-height: 230px; padding: 26px 28px; border-right: 1px solid var(--v4-product-line); border-bottom: 1px solid var(--v4-product-line); background: var(--v4-product-paper);}
.site-v3.product-record .product-proof span{display: block; color: var(--v4-product-orange); font-family: var(--v4-product-display); font-size: 11px; font-weight: 800; letter-spacing: .08em;}
.site-v3.product-record .product-proof h3{margin: 46px 0 10px; font-size: 22px;}
.site-v3.product-record .product-proof p{margin: 0; color: var(--v4-product-muted); font-size: 14px;}
.site-v3.product-record .product-body{padding: 104px 0;}
.site-v3.product-record .product-rows{border-top: 1px solid var(--v4-product-line);}
.site-v3.product-record .product-row{display: grid; grid-template-columns: 80px minmax(220px, .7fr) minmax(0, 1.3fr); gap: 26px; align-items: start; padding: 32px 0; border-bottom: 1px solid var(--v4-product-line);}
.site-v3.product-record .product-row-index{color: var(--v4-product-orange); font-family: var(--v4-product-display); font-size: 13px; font-weight: 800;}
.site-v3.product-record .product-row h3{margin: 0; font-size: 24px;}
.site-v3.product-record .product-row p{margin: 0; color: var(--v4-product-muted);}
.site-v3.product-record .product-row ul{display: grid; gap: 8px; margin: 16px 0 0; padding-left: 20px; color: var(--v4-product-muted);}
.site-v3.product-record .product-case-section{padding: 96px 0; background: var(--v4-product-soft);}
.site-v3.product-record .product-case-grid{display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px;}
.site-v3.product-record .product-case{display: flex; flex-direction: column; min-width: 0; border-top: 3px solid var(--v4-product-blue); background: var(--v4-product-paper);}
.site-v3.product-record .product-case-media{aspect-ratio: 1.35; overflow: hidden; background: #24323d;}
.site-v3.product-record .product-case-media img{width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease;}
.site-v3.product-record .product-case:hover .product-case-media img{transform: scale(1.02);}
.site-v3.product-record .product-case-copy{padding: 22px;}
.site-v3.product-record .product-case-copy span{color: var(--v4-product-orange); font-size: 12px; font-weight: 800;}
.site-v3.product-record .product-case-copy h3{margin: 10px 0 8px; font-size: 20px; line-height: 1.3;}
.site-v3.product-record .product-case-copy p{margin: 0; color: var(--v4-product-muted); font-size: 14px;}
.site-v3.product-record .product-contact{padding: 76px 0; background: var(--v4-product-blue); color: #fff;}
.site-v3.product-record .product-contact-grid{display: grid; grid-template-columns: minmax(0, 1fr) minmax(260px, .72fr); gap: 72px; align-items: end;}
.site-v3.product-record .product-contact h2{max-width: 680px; margin: 0; font-size: clamp(30px, 4vw, 52px); line-height: 1.12;}
.site-v3.product-record .product-contact p{max-width: 560px; margin: 16px 0 0; color: #d8f0f1;}
.site-v3.product-record .product-contact-list{display: grid; gap: 10px; justify-items: start; color: #fff; font-size: 16px; font-weight: 700;}
.site-v3.product-record .product-contact-list a{text-decoration: underline; text-underline-offset: 4px;}
.site-v3.product-record .product-footer{padding: 24px 0; background: var(--v4-product-dark); color: #c8d2d7; font-size: 13px;}
.site-v3.product-record .product-footer-inner{display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px;}
@media (max-width: 1080px) {
.site-v3.product-record .product-section-head{gap: 36px;}
}
@media (max-width: 760px) {
.site-v3.product-record .product-section-head,.site-v3.product-record .product-contact-grid{grid-template-columns: 1fr;}
.site-v3.product-record .product-intro,.site-v3.product-record .product-body,.site-v3.product-record .product-case-section{padding: 64px 0;}
.site-v3.product-record .product-section-head{gap: 18px; margin-bottom: 27px;}
.site-v3.product-record .product-proof-grid,.site-v3.product-record .product-case-grid{grid-template-columns: 1fr;}
.site-v3.product-record .product-proof{min-height: 0; padding: 23px;}
.site-v3.product-record .product-proof h3{margin-top: 30px;}
.site-v3.product-record .product-row{grid-template-columns: 42px minmax(0, 1fr); gap: 14px; padding: 25px 0;}
.site-v3.product-record .product-row > p,.site-v3.product-record .product-row > ul{grid-column: 2;}
.site-v3.product-record .product-row h3{font-size: 21px;}
.site-v3.product-record .product-contact{padding: 60px 0;}
.site-v3.product-record .product-footer-inner{display: grid; gap: 6px;}
}
@media (prefers-reduced-motion: reduce) {
.site-v3.product-record *,.site-v3.product-record *::before,.site-v3.product-record *::after{transition-duration: .01ms !important;}
}
/* Source: site-content-v1.css */

/* Source: product-topic-v1.css */
html.topic-document{overflow-x: visible; scroll-behavior: auto;}
.site-v3.product-topic{--ink: var(--color-ink); --ink-soft: var(--color-muted);
  --line: var(--color-rule); --surface: var(--color-paper); --surface-soft: var(--color-ground);
  --accent: var(--color-brand); --accent-dark: var(--color-brand-deep);
  --safety-ink: var(--color-ink); --safety-ink-2: var(--color-brand-deep);
  --safety-paper: var(--color-ground); --safety-white: var(--color-paper);
  --safety-line: var(--color-rule); --safety-muted: var(--color-muted);
  --safety-cyan: var(--color-brand); --safety-orange: var(--color-brand);
  --v4-product-dark: var(--color-ink); --v4-product-orange: var(--color-brand);
  background: var(--color-paper); color: var(--color-ink); overflow-x: visible;}
.site-v3.product-topic main{overflow: visible;}
.site-v3.product-topic .v3-wrap,.site-v3.product-topic .topbar-inner,.site-v3.product-topic .section{width: min(var(--content-max), calc(100% - var(--page-gutter) * 2)); max-width: none; margin-inline: auto;}
.site-v3.product-topic .topic-mobile-menu{display: none;}
.site-v3.product-topic summary.menu-toggle{list-style: none; cursor: pointer;}
.site-v3.product-topic summary.menu-toggle::-webkit-details-marker{display: none;}
.site-v3.product-topic .topic-mobile-menu[open] .menu-toggle::before{transform: translate(-50%, 0) rotate(45deg);}
.site-v3.product-topic .topic-mobile-menu[open] .menu-toggle::after{transform: translate(-50%, 0) rotate(-45deg);}
.site-v3.product-topic .topic-hero{padding: 48px 0; background: var(--color-paper); border-bottom: 1px solid var(--color-rule);}
.site-v3.product-topic .topic-hero-grid{display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); align-items: center; gap: 48px;}
.site-v3.product-topic .topic-hero-copy{min-width: 0;}
.site-v3.product-topic .topic-kicker{margin: 0 0 16px; color: var(--color-brand); font: 700 12px/1.5 var(--font-data);}
.site-v3.product-topic .topic-hero h1{max-width: none; margin: 0; color: var(--color-brand); font-size: var(--type-page); line-height: 1.3; letter-spacing: 0;}
.site-v3.product-topic .topic-lead{max-width: 42em; margin: 20px 0 0; color: var(--color-muted); font-size: 16px; line-height: 1.8;}
.site-v3.product-topic .topic-actions{display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px;}
.site-v3.product-topic .topic-button{display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 10px 20px; border: 1px solid var(--color-brand); border-radius: var(--radius-control); color: var(--color-brand); font-weight: 700;}
.site-v3.product-topic .topic-button--primary{background: var(--color-brand); color: #fff;}
.site-v3.product-topic .topic-button:hover{border-color: var(--color-brand-deep); background: var(--color-brand-deep); color: #fff;}
.site-v3.product-topic .topic-hero-media{display: grid; justify-items: center; gap: 12px; margin: 0; min-width: 0;}
.site-v3.product-topic .topic-hero-media a{width: 100%;}
.site-v3.product-topic .topic-hero-media img{display: block; width: 100%; height: auto; max-width: min(100%,var(--media-max-width)); max-height: none; margin-inline: auto; object-fit: contain;}
.site-v3.product-topic .topic-hero-media figcaption{justify-self: start; color: var(--color-muted); font-size: 13px;}
.site-v3.product-topic .main-nav a::after{background: var(--color-brand);}
.site-v3.product-topic .section{padding-block: var(--section-gap);}
.site-v3.product-topic :is(.section-head,.product-section-head,.safety-section-head,.safety-parameter-heading){display: flex; flex-wrap: wrap; justify-content: space-between; align-items: end; gap: 16px 32px; margin-bottom: 32px;}
.site-v3.product-topic :is(.section-head,.product-section-head,.safety-section-head,.safety-parameter-heading) > *{min-width: 0;}
.site-v3.product-topic h2.topic-section-title{max-width: none; font-size: var(--type-section); line-height: 1.4; letter-spacing: 0;}
.site-v3.product-topic h3.topic-card-title{max-width: none; font-size: var(--type-card); line-height: 1.5; letter-spacing: 0;}
.site-v3.product-topic :is(.eyebrow,.product-eyebrow,.safety-kicker,.product-proof > span,.product-row-index,.product-case-copy > span){color: var(--color-brand); font-family: var(--font-data); letter-spacing: 0;}
.site-v3.product-topic :is(section,[id]){scroll-margin-top: 100px;}
.site-v3.product-topic figure img{display: block; width: auto; max-width: 100%; height: auto; min-height: 0; aspect-ratio: auto; object-fit: contain; transform: none; filter: none;}
.site-v3.product-topic figure{min-width: 0; min-height: 0;}
.site-v3.product-topic figcaption{color: var(--color-muted); line-height: 1.7;}
.site-v3.product-topic :is(.three-d-contact,.product-contact,.v3-contact) a{min-height: 44px; display: inline-flex; align-items: center; overflow-wrap: anywhere;}
.site-v3.product-topic.product-record :is(.product-intro,.product-body,.product-case-section,.product-contact){padding-block: var(--section-gap);}
.site-v3.product-topic.product-record .product-proof{min-height: 0; padding: 24px;}
.site-v3.product-topic.product-record .product-proof h3{margin-top: 20px;}
.site-v3.product-topic.product-record .product-section-head{grid-template-columns: 1fr;}
.site-v3.product-topic.product-record .product-row{grid-template-columns: 40px minmax(0,.7fr) minmax(0,1.3fr);}
.site-v3.product-topic.product-record .product-case-media{aspect-ratio: auto; overflow: visible; background: transparent;}
.site-v3.product-topic.product-record .product-case-media img{width: 100%; height: auto; transform: none; object-fit: contain;}
.site-v3.product-topic.product-record .product-contact-grid{grid-template-columns: minmax(0,1fr) minmax(0,.75fr); gap: 32px;}
.site-v3.product-topic .mobile-contact-bar{display: none;}
.site-v3.product-topic :focus-visible{outline: 3px solid var(--color-focus); outline-offset: 3px;}
.site-v3.product-topic .case-viewer :focus-visible{outline-color: #fff;}
@media(max-width:1080px) {
html.topic-document .site-v3.product-topic .main-nav,.site-v3.product-topic .v3-consult{display: none;}
.site-v3.product-topic .topic-mobile-menu{display: block;}
html.topic-document .site-v3.product-topic summary.menu-toggle{display: block !important;}
.site-v3.product-topic .topic-mobile-nav{position: absolute; top: 100%; left: 0; right: 0; display: grid; padding: 12px var(--page-gutter) 20px; border-bottom: 1px solid var(--color-rule); background: var(--color-paper);}
.site-v3.product-topic .topic-mobile-nav a{display: flex; align-items: center; min-height: 46px; padding: 12px 0; font-size: 15px;}
.site-v3.product-topic .topic-mobile-nav a:is([aria-current="page"], [aria-current="true"]){color: var(--color-brand); font-weight: 700;}
.site-v3.product-topic .topic-hero-grid{gap: 32px;}
}
@media(max-width:760px) {
.site-v3.product-topic .topic-hero{padding-block: 32px;}
.site-v3.product-topic .topic-hero-grid{grid-template-columns: 1fr;}
.site-v3.product-topic .topic-hero-media img{max-height: none;}
.site-v3.product-topic :is(.section-head,.product-section-head,.safety-section-head,.safety-parameter-heading){margin-bottom: 24px;}
.site-v3.product-topic.product-record .product-contact-grid{grid-template-columns: 1fr;}
.site-v3.product-topic.product-record .product-row{grid-template-columns: 32px minmax(0,1fr); gap: 16px;}
.site-v3.product-topic.product-record .product-row > div{grid-column: 2;}
}
@media(prefers-reduced-motion:reduce) {
.site-v3.product-topic *,.site-v3.product-topic *::before,.site-v3.product-topic *::after{animation: none !important; transition: none !important; scroll-behavior: auto !important;}
}
/* Source: case-media-viewer.css */
.case-media-open{position:relative; display:block; color:var(--color-paper);}
.case-media-open img{display:block;}
.case-media-open::after{content:"查看原图 ↗"; position:absolute; right:12px; bottom:12px; padding:8px 12px; border:1px solid #ffffff80; border-radius:var(--radius-control); background:var(--color-ink); color:var(--color-paper); font:14px/1.4 var(--font-body);}
.case-media-open:hover::after{background:var(--color-brand);}
.case-media-open:focus-visible{outline-offset:5px;}
.case-viewer{box-sizing:border-box; width:calc(100% - 48px); max-width:1600px; height:calc(100dvh - 48px); max-height:1100px; margin:auto; padding:0; border:1px solid var(--color-rule); border-radius:4px; background:var(--color-ink); color:var(--color-paper); overflow:hidden;}
.case-viewer::backdrop{background:#172334e8;}
.case-viewer[open]{display:grid; grid-template-rows:auto minmax(0,1fr) auto;}
.case-viewer-head{display:grid; grid-template-columns:minmax(0,1fr) auto; gap:12px 20px; align-items:center; padding:12px 20px; border-bottom:1px solid #ffffff40;}
.case-viewer-heading{min-width:0; flex:1;}
.case-viewer-heading h2{margin:0; color:var(--color-paper); font:600 16px/1.5 var(--font-body);}
.case-viewer-count{display:block; margin-top:2px; font:14px/1.4 var(--font-data); color:#d7dfe8;}
.case-viewer-regions{grid-column:1 / -1; min-width:0;}
.case-viewer-region-choices{display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:8px;}
.case-viewer-region-choices button{min-width:0; overflow-wrap:anywhere;}
.case-viewer-region-choices button[aria-pressed="true"]{background:var(--color-brand); border-color:var(--color-paper);}
.case-viewer-regions p{margin:8px 0 0; color:#d7dfe8; font:14px/1.5 var(--font-body);}
.case-viewer button,.case-viewer-source{display:inline-flex; justify-content:center; align-items:center; min-width:44px; min-height:44px; padding:8px 12px; border:1px solid #ffffff66; border-radius:var(--radius-control); background:transparent; color:var(--color-paper); font:14px/1.3 var(--font-body); cursor:pointer;}
.case-viewer button:hover,.case-viewer-source:hover{background:var(--color-brand);}
.case-viewer button:disabled{opacity:.4; cursor:default;}
.case-viewer :is(button,a):focus-visible{outline:3px solid #fff; outline-offset:3px;}
.case-viewer-stage{overflow:auto; overscroll-behavior:contain; min-height:0; min-width:0; background:#101923; touch-action:pan-x pan-y pinch-zoom;}
.case-viewer-canvas{display:grid; place-items:center; min-width:100%; min-height:100%; width:max-content; padding:16px; box-sizing:border-box;}
.case-viewer-image{display:block; max-width:none; max-height:none; flex:none; object-fit:contain;}
.case-viewer-error{margin:20px;}
.case-viewer-controls{display:flex; flex-wrap:wrap; align-items:center; justify-content:center; gap:8px; padding:12px 20px; border-top:1px solid #ffffff40;}
.case-viewer-zoom{min-width:52px; text-align:center; font:14px/1.4 var(--font-data);}
.case-viewer-source{margin-left:auto; text-decoration:underline; text-underline-offset:4px;}
@media(max-width:760px) {
.case-viewer{width:100%; height:100dvh; max-height:none; max-width:none; border:0; border-radius:0;}
.case-viewer-head{gap:12px; padding:12px 16px;}
.case-viewer-controls{gap:8px; padding:12px 16px max(12px,env(safe-area-inset-bottom));}
.case-viewer-source{margin-left:0;}
}