/* ============================================================
   达文科技 DAVIN TECH — 冰川极简 · 浅色高级
   设计系统 / 全站样式
   ============================================================ */

/* ---------- 设计 Token ---------- */
:root {
  /* 色彩 */
  --bg:        #F7F6F2;   /* 珍珠底 */
  --bg-soft:   #EFEDE6;   /* 浅灰段 */
  --surface:   #FFFFFF;
  --ink:       #0E1B2C;   /* 主墨色 */
  --ink-2:     #46536A;   /* 次级文字 */
  --ink-3:     #8B95A8;   /* 弱化文字 */
  --line:      #E3E0D6;   /* 发丝线 */
  --line-2:    #CFCCC0;
  --accent:    #2B5CFF;   /* 电光蓝 */
  --accent-deep: #1B47E0;
  --accent-soft: rgba(43, 92, 255, 0.08);
  --accent-line: rgba(43, 92, 255, 0.35);
  --good:      #1F9D6B;

  /* 字体 */
  --font-serif: "Noto Serif SC", "Songti SC", "STSong", serif;
  --font-sans:  "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-latin: "Manrope", "Noto Sans SC", sans-serif;

  /* 版式尺度 */
  --gutter: clamp(1.25rem, 5vw, 6rem);
  --maxw: 1200px;
  --radius: 14px;
  --radius-lg: 22px;
  --shadow-1: 0 1px 2px rgba(14, 27, 44, 0.04), 0 8px 24px -12px rgba(14, 27, 44, 0.10);
  --shadow-2: 0 2px 6px rgba(14, 27, 44, 0.05), 0 24px 48px -20px rgba(14, 27, 44, 0.18);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --header-h: 76px;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, svg, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
ul, ol { list-style: none; }
::selection { background: var(--accent); color: #fff; }

/* 发丝滚动条 */
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-thumb { background: #CFCCC0; border-radius: 10px; border: 3px solid var(--bg); }
::-webkit-scrollbar-track { background: var(--bg); }

/* ---------- 版式 ---------- */
.wrap { max-width: var(--maxw); margin: 0 auto; padding-left: var(--gutter); padding-right: var(--gutter); }

.kicker {
  font-family: var(--font-latin);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 0.9em;
}
.kicker::before { content: ""; width: 2.2em; height: 1px; background: currentColor; }

h1, h2, h3, .serif { font-family: var(--font-serif); font-weight: 600; line-height: 1.18; letter-spacing: 0.01em; }

.lead { font-size: 1.06rem; color: var(--ink-2); line-height: 1.9; }

/* 数字/拉丁点缀 */
.num, .latin { font-family: var(--font-latin); }

/* 小节头 */
.sec { padding: clamp(5rem, 10vw, 8.5rem) 0; }
.sec-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: clamp(2.5rem, 6vw, 4.5rem);
}
.sec-head .head-left .kicker { margin-bottom: 1.1rem; }
.sec-head h2 { font-size: clamp(1.9rem, 4vw, 3rem); }
.sec-head .head-sub { color: var(--ink-3); font-size: 0.92rem; margin-top: 0.7rem; letter-spacing: 0.04em; }
.sec-head .head-link {
  flex-shrink: 0;
  display: inline-flex; align-items: center; gap: 0.6em;
  font-family: var(--font-latin);
  font-size: 0.86rem; font-weight: 700; letter-spacing: 0.06em;
  color: var(--ink-2);
  padding-bottom: 0.35rem;
  border-bottom: 1px solid var(--line-2);
  transition: color .3s var(--ease), border-color .3s var(--ease);
}
.sec-head .head-link .arw { transition: transform .35s var(--ease); }
.sec-head .head-link:hover { color: var(--accent); border-color: var(--accent); }
.sec-head .head-link:hover .arw { transform: translateX(4px); }

/* 区块底色 */
.sec-soft { background: var(--bg-soft); }
.sec-ink { background: #0C1626; color: #EDF0F6; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.6em;
  font-family: var(--font-sans);
  font-size: 0.94rem; font-weight: 600; letter-spacing: 0.04em;
  padding: 0.95em 1.9em;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: transform .3s var(--ease), background .3s var(--ease), color .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
  white-space: nowrap;
}
.btn:active { transform: translateY(1px) scale(0.99); }
.btn-primary { background: var(--accent); color: #fff; box-shadow: 0 10px 24px -10px rgba(43, 92, 255, 0.6); }
.btn-primary:hover { background: var(--accent-deep); transform: translateY(-2px); box-shadow: 0 14px 30px -12px rgba(43, 92, 255, 0.7); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line-2); }
.btn-ghost:hover { border-color: var(--ink); transform: translateY(-2px); }
.btn-light { background: #fff; color: var(--ink); }
.btn-light:hover { transform: translateY(-2px); box-shadow: var(--shadow-1); }
.btn-ghost-light { background: transparent; color: #fff; border-color: rgba(255,255,255,0.28); }
.btn-ghost-light:hover { border-color: #fff; transform: translateY(-2px); }

/* 文本箭头链接 */
.tlink {
  display: inline-flex; align-items: center; gap: 0.55em;
  font-size: 0.92rem; font-weight: 600; color: var(--accent);
  position: relative;
}
.tlink .arw { transition: transform .35s var(--ease); }
.tlink:hover .arw { transform: translateX(5px); }
.tlink::after { content: ""; position: absolute; left: 0; bottom: -0.2em; height: 1px; width: 100%; background: var(--accent); transform: scaleX(0); transform-origin: left; transition: transform .4s var(--ease); }
.tlink:hover::after { transform: scaleX(1); }

/* ---------- 顶部导航 ---------- */
/* 米白页头：无线设计，靠带蓝调的柔和投影悬浮于内容之上 */
.site-header {
  position: sticky; top: 0; z-index: 90;
  background: rgba(247, 246, 242, 0.9);
  backdrop-filter: blur(14px) saturate(1.4);
  -webkit-backdrop-filter: blur(14px) saturate(1.4);
  border-bottom: 1px solid transparent;
  box-shadow:
    0 18px 44px -26px rgba(30, 64, 175, 0.38),
    0 4px 16px -10px rgba(14, 27, 44, 0.08);
  transition: background-color .45s var(--ease), border-color .4s var(--ease), box-shadow .4s var(--ease);
}
.site-header.is-scrolled {
  background: rgba(247, 246, 242, 0.97);
  box-shadow:
    0 22px 52px -26px rgba(30, 64, 175, 0.45),
    0 6px 20px -10px rgba(14, 27, 44, 0.12);
}

.header-inner {
  max-width: var(--maxw); margin: 0 auto;
  height: var(--header-h);
  padding: 0 var(--gutter);
  display: flex; align-items: center; justify-content: space-between; gap: 2rem;
}
.brand { display: inline-flex; align-items: center; gap: 0.75em; }
.brand .brand-text { display: flex; flex-direction: column; gap: 2px; }
/* 产品封面（后台上传图片时使用） */
.p-visual img { width: 100%; height: 100%; object-fit: cover; border-radius: 12px; }
/* 产品卡片「有视频」角标 */
.p-visual .video-badge {
  position: absolute; left: 12px; bottom: 12px; z-index: 1;
  display: inline-flex; align-items: center; gap: .35em;
  padding: .3em .75em; border-radius: 99px;
  background: rgba(12, 22, 38, .78); color: #fff;
  font-size: .75rem; font-weight: 600; letter-spacing: .04em;
  backdrop-filter: blur(4px);
}
/* CMS 富文本正文（新闻详情/产品详情/关于我们） */
.article-body h2, .article-body h3 { color: var(--ink); margin: 1.8em 0 .8em; line-height: 1.4; }
.article-body p { margin: 1em 0; }
.article-body img { max-width: 100%; border-radius: 12px; }
.article-body ul, .article-body ol { padding-left: 1.6em; margin: 1em 0; }
.pd-detail { line-height: 2; color: var(--ink-2); }
.pd-detail img { max-width: 100%; border-radius: 12px; }
.brand .logo-img {
  width: 42px; height: 42px; border-radius: 12px; display: block;
  box-shadow: 0 6px 16px -6px rgba(43,92,255,0.7);
  flex: none;
  transition: transform .5s var(--ease);
}
.brand:hover .logo-img { transform: rotate(-6deg) scale(1.06); }
.brand .mark {
  width: 36px; height: 36px; border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), #7AA0FF);
  display: grid; place-items: center;
  color: #fff; font-family: var(--font-latin); font-weight: 800; font-size: 0.98rem;
  box-shadow: 0 6px 16px -6px rgba(43,92,255,0.7);
}
.brand .name { font-family: var(--font-serif); font-weight: 700; font-size: 1.34rem; letter-spacing: 0.15em; line-height: 1.12; }
.brand .name em { font-style: normal; color: var(--accent); }
.brand .tagline {
  display: inline-flex; align-items: center; gap: 0.6em;
  font-family: var(--font-latin); font-size: 0.62rem; font-weight: 700;
  letter-spacing: 0.34em; color: var(--ink-3); text-transform: uppercase;
}
.brand .tagline::before { content: ""; width: 1.8em; height: 1px; background: var(--accent-line); transition: width .4s var(--ease); }
.brand:hover .tagline::before { width: 2.6em; }

.main-nav { position: relative; align-self: stretch; display: flex; align-items: center; }
.main-nav ul { display: flex; gap: clamp(1.4rem, 2.2vw, 2.4rem); }
.main-nav a {
  font-family: var(--font-sans);
  font-size: 1.05rem; font-weight: 700; letter-spacing: 0.2em;
  color: var(--ink-2);
  padding: 0.4rem 2px;
  white-space: nowrap;
  transition: color .3s var(--ease);
}
.main-nav a.active {
  text-shadow: 0 0 1px rgba(14, 27, 44, .18);
}
/* 滑动墨线：悬浮时游走到对应菜单项下方，离开后归位于当前页 */
.nav-ink {
  position: absolute; left: 0; bottom: 0;
  width: 0; height: 2px; border-radius: 2px;
  background: linear-gradient(90deg, #2B5CFF, #00A8CC);
  box-shadow: 0 4px 10px -4px rgba(43,92,255,.6);
  opacity: 0;
  transition: transform .5s cubic-bezier(.22, 1, .36, 1), width .5s cubic-bezier(.22, 1, .36, 1), opacity .35s var(--ease);
}
.nav-ink.is-on { opacity: 1; }
.main-nav a:hover, .main-nav a.active { color: var(--ink); }

.header-cta { display: flex; align-items: center; gap: 1.2rem; }

/* 汉堡 */
.burger { display: none; width: 42px; height: 42px; flex-direction: column; align-items: center; justify-content: center; gap: 6px; }
.burger span { width: 22px; height: 2px; background: var(--ink); border-radius: 2px; transition: transform .35s var(--ease), opacity .3s; }
.burger.is-open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.burger.is-open span:nth-child(2) { opacity: 0; }
.burger.is-open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* ---------- 页脚 ---------- */
.site-footer { background: #0C1626; color: #C6CEDB; }
.footer-top { padding: clamp(3.5rem, 7vw, 5.5rem) 0 3rem; display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.4fr; gap: 3rem; }
.footer-brand .brand .name { color: #fff; }
.footer-brand .brand .tagline { color: #7D8899; }
.footer-desc { margin-top: 1.4rem; font-size: 0.92rem; color: #97A1B3; line-height: 1.9; max-width: 30em; }
.footer-cols h4 { color: #fff; font-family: var(--font-serif); font-size: 1.02rem; font-weight: 600; margin-bottom: 1.4rem; letter-spacing: 0.06em; }
.footer-cols li { margin-bottom: 0.85rem; }
.footer-cols a { color: #97A1B3; font-size: 0.92rem; transition: color .3s var(--ease), padding-left .3s var(--ease); }
.footer-cols a:hover { color: #fff; padding-left: 4px; }
.footer-contact li { display: flex; gap: 0.8rem; margin-bottom: 0.95rem; font-size: 0.92rem; color: #97A1B3; align-items: flex-start; }
.footer-contact .ic { color: var(--accent); font-weight: 600; font-size: 0.88rem; flex-shrink: 0; min-width: 2.4em; letter-spacing: 0.02em; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 1.6rem 0;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
  font-size: 0.82rem; color: #6E7A8E;
}
.footer-bottom .links a { color: #6E7A8E; margin-left: 1.4rem; }
.footer-bottom .links a:hover { color: #fff; }

/* ---------- 悬浮组件 ---------- */
.float-stack { position: fixed; right: 1.4rem; bottom: 1.6rem; z-index: 95; display: flex; flex-direction: column; gap: 0.7rem; align-items: flex-end; }
.f-orb {
  width: 52px; height: 52px; border-radius: 50%;
  display: grid; place-items: center;
  color: #fff; background: var(--accent);
  box-shadow: 0 12px 28px -10px rgba(43,92,255,0.75);
  position: relative;
  transition: transform .3s var(--ease), background .3s;
}
.f-orb:hover { transform: translateY(-3px); background: var(--accent-deep); }
.f-orb .pulse { position: absolute; inset: -6px; border-radius: 50%; border: 2px solid rgba(43,92,255,0.4); animation: fPulse 2.4s ease-out infinite; }
@keyframes fPulse {
  0% { transform: scale(0.85); opacity: 0.9; }
  70% { transform: scale(1.35); opacity: 0; }
  100% { opacity: 0; }
}
.f-chat {
  display: flex; align-items: center; gap: 0.6rem;
  background: var(--ink); color: #fff;
  padding: 0.8em 1.25em; border-radius: 999px;
  font-size: 0.86rem; font-weight: 500;
  border: none; cursor: pointer; font-family: inherit;
  box-shadow: var(--shadow-2);
  transition: transform .3s var(--ease);
}
.f-chat:hover { transform: translateY(-3px); }
.f-chat .dot { width: 7px; height: 7px; border-radius: 50%; background: #35E0A0; box-shadow: 0 0 0 0 rgba(53,224,160,.6); animation: chatDot 1.8s infinite; }

/* ============ 在线咨询聊天窗口 ============ */
.chat-panel {
  position: fixed; right: 1.4rem; bottom: 5.8rem; z-index: 110;
  width: 372px; max-width: calc(100vw - 2rem);
  height: min(540px, 72vh);
  display: flex; flex-direction: column;
  background: var(--surface); border-radius: 18px; overflow: hidden;
  box-shadow: 0 30px 70px -20px rgba(14,27,44,.35), 0 4px 18px -6px rgba(30,64,175,.18);
  opacity: 0; pointer-events: none;
  transform: translateY(14px) scale(.97); transform-origin: bottom right;
  transition: opacity .3s var(--ease), transform .35s var(--ease);
}
.chat-panel.open { opacity: 1; pointer-events: auto; transform: translateY(0) scale(1); }
.chat-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.95rem 1.05rem; color: #fff;
  background: linear-gradient(135deg, #7AA0FF -20%, #2B5CFF 55%, #1B47E0);
}
.chat-id { display: flex; align-items: center; gap: 0.7rem; }
.chat-avatar {
  width: 38px; height: 38px; border-radius: 50%; flex: none;
  display: grid; place-items: center;
  font-family: var(--font-serif); font-weight: 700; font-size: 1.05rem;
  background: rgba(255,255,255,.16); border: 1px solid rgba(255,255,255,.35);
}
.chat-meta { display: flex; flex-direction: column; gap: 2px; }
.chat-meta b { font-size: 0.94rem; letter-spacing: 0.04em; }
.chat-meta small { display: flex; align-items: center; gap: 0.35rem; font-size: 0.7rem; color: rgba(255,255,255,.78); }
.chat-status { width: 6px; height: 6px; border-radius: 50%; background: #35E0A0; }
.chat-close {
  width: 30px; height: 30px; border-radius: 50%; border: none; cursor: pointer;
  display: grid; place-items: center; color: #fff;
  background: rgba(255,255,255,.14); transition: background .25s;
}
.chat-close:hover { background: rgba(255,255,255,.28); }
.chat-body {
  flex: 1; overflow-y: auto; padding: 1.05rem;
  display: flex; flex-direction: column; gap: 0.65rem;
  background: var(--bg-soft);
}
.chat-msg {
  max-width: 84%; padding: 0.6rem 0.85rem;
  border-radius: 14px; font-size: 0.89rem; line-height: 1.65;
  word-break: break-word; white-space: pre-wrap;
}
.chat-msg.bot {
  align-self: flex-start;
  background: var(--surface); border: 1px solid var(--line);
  border-top-left-radius: 4px; color: var(--ink-2);
}
.chat-msg.me {
  align-self: flex-end;
  background: linear-gradient(135deg, #2B5CFF, #1B47E0);
  color: #fff; border-top-right-radius: 4px;
  box-shadow: 0 6px 14px -6px rgba(43,92,255,.45);
}
.chat-ack { display: block; margin-top: 0.3rem; font-size: 0.68rem; color: rgba(255,255,255,.75); text-align: right; }
.chat-foot {
  display: flex; align-items: center; gap: 0.6rem;
  padding: 0.75rem 0.85rem;
  background: var(--surface); border-top: 1px solid var(--line);
}
.chat-foot input[type="text"]:not([name="website"]) {
  flex: 1; border: 1px solid var(--line-2); border-radius: 999px;
  padding: 0.55rem 1rem; font-size: 0.9rem; font-family: inherit;
  color: var(--ink); background: var(--surface); outline: none;
  transition: border-color .25s;
}
.chat-foot input[type="text"]:not([name="website"]):focus { border-color: var(--accent); }
.chat-send {
  width: 40px; height: 40px; border-radius: 50%; border: none; cursor: pointer; flex: none;
  display: grid; place-items: center; color: #fff;
  background: linear-gradient(135deg, #7AA0FF -20%, #2B5CFF 55%, #1B47E0);
  box-shadow: 0 8px 16px -8px rgba(43,92,255,.6);
  transition: transform .25s var(--ease), opacity .25s;
}
.chat-send:hover { transform: translateY(-2px); }
.chat-send:disabled { opacity: .55; cursor: default; transform: none; }
@media (max-width: 640px) {
  .chat-panel { right: 0.8rem; left: 0.8rem; width: auto; bottom: 5.4rem; height: min(500px, 68vh); }
}
@keyframes chatDot {
  0% { box-shadow: 0 0 0 0 rgba(53,224,160,.55); }
  70% { box-shadow: 0 0 0 9px rgba(53,224,160,0); }
  100% { box-shadow: 0 0 0 0 rgba(53,224,160,0); }
}
.f-top { width: 42px; height: 42px; border-radius: 50%; background: rgba(255,255,255,0.7); border: 1px solid var(--line); color: var(--ink-2); display: grid; place-items: center; opacity: 0; pointer-events: none; transition: opacity .3s var(--ease), transform .3s var(--ease); backdrop-filter: blur(6px); }
.f-top.show { opacity: 1; pointer-events: auto; }
.f-top:hover { transform: translateY(-3px); }

/* ============================================================
   首页 Hero
   ============================================================ */
.hero { position: relative; overflow: hidden; padding: clamp(4rem, 9vw, 7.5rem) 0 clamp(3rem, 6vw, 5rem); }
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: 0;
  background:
    linear-gradient(rgba(14,27,44,0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(14,27,44,0.045) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(ellipse 80% 70% at 70% 20%, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 70% 20%, #000 20%, transparent 75%);
}
.hero .glow {
  position: absolute; z-index: 0;
  width: 560px; height: 560px; border-radius: 50%;
  right: -120px; top: -160px;
  background: radial-gradient(circle, rgba(43,92,255,0.16), transparent 65%);
  filter: blur(30px);
  animation: glowDrift 14s var(--ease) infinite alternate;
}
.hero .glow.g2 { width: 420px; height: 420px; left: -140px; bottom: -180px; top: auto; right: auto; background: radial-gradient(circle, rgba(64,174,255,0.12), transparent 65%); animation-delay: -6s; }
@keyframes glowDrift {
  0% { transform: translate(0,0) scale(1); }
  100% { transform: translate(-40px, 30px) scale(1.1); }
}

.hero-grid {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: center;
}
.hero h1 { font-size: clamp(2.4rem, 5.2vw, 4.1rem); margin-top: 1.6rem; }
.hero h1 .accent-line { color: var(--accent); }
.hero .sub { margin-top: 1.8rem; max-width: 34em; }
.hero .cta-row { margin-top: 2.6rem; display: flex; gap: 1rem; flex-wrap: wrap; }
.hero .hint { margin-top: 3.2rem; display: inline-flex; align-items: center; gap: 0.7rem; font-family: var(--font-latin); font-size: 0.74rem; letter-spacing: 0.24em; text-transform: uppercase; color: var(--ink-3); }
.hero .hint .line { width: 40px; height: 1px; background: var(--line-2); position: relative; overflow: hidden; }
.hero .hint .line::after { content: ""; position: absolute; inset: 0; background: var(--accent); transform: translateX(-100%); animation: hintSlide 2.2s var(--ease) infinite; }
@keyframes hintSlide { 0% { transform: translateX(-100%); } 60% { transform: translateX(0); } 100% { transform: translateX(100%); } }

/* Hero 产品视觉（纯 CSS/SVG 构图） */
.hero-visual { position: relative; }
.hero-visual .frame {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 1.4rem 1.4rem 0;
  box-shadow: var(--shadow-2);
  transform: rotate(1.2deg);
  transition: transform .6s var(--ease);
}
.hero-visual .frame:hover { transform: rotate(0deg) translateY(-6px); }
.hero-visual .screen {
  background: #0E1B2C;
  border-radius: 12px 12px 0 0;
  padding: 1.1rem;
  aspect-ratio: 4 / 2.6;
  position: relative; overflow: hidden;
}
.hero-visual .screen .dots { position: absolute; top: 1rem; left: 1.1rem; display: flex; gap: 6px; }
.hero-visual .screen .dots i { width: 8px; height: 8px; border-radius: 50%; background: rgba(255,255,255,0.16); }
.hero-visual .screen .grid-line { position: absolute; inset: 0; background: linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px); background-size: 34px 34px; }
.hero-visual .bars { position: absolute; inset: auto 0 0 0; padding: 1.2rem 1.2rem 1.4rem; display: flex; align-items: flex-end; gap: 10px; }
.hero-visual .bars i { flex: 1; background: linear-gradient(180deg, #7AA0FF, #2B5CFF); border-radius: 4px 4px 0 0; opacity: 0.9; animation: barGrow 1s var(--ease) backwards; }
.hero-visual .bars i:nth-child(1) { height: 42%; animation-delay: .05s; }
.hero-visual .bars i:nth-child(2) { height: 68%; animation-delay: .12s; }
.hero-visual .bars i:nth-child(3) { height: 55%; animation-delay: .2s; }
.hero-visual .bars i:nth-child(4) { height: 84%; animation-delay: .3s; }
.hero-visual .bars i:nth-child(5) { height: 60%; animation-delay: .38s; }
.hero-visual .bars i:nth-child(6) { height: 92%; animation-delay: .46s; }
.hero-visual .bars i:nth-child(7) { height: 72%; animation-delay: .55s; }
.hero-visual .bars i:nth-child(8) { height: 48%; animation-delay: .64s; }
@keyframes barGrow { from { transform: scaleY(0); transform-origin: bottom; } to { transform: scaleY(1); } }
.hero-visual .bars i:hover { filter: brightness(1.2); }

/* 浮动小卡 */
.hero-visual .float-card {
  position: absolute; z-index: 2;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(8px);
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: var(--shadow-1);
  padding: 0.8rem 1rem;
  display: flex; align-items: center; gap: 0.7rem;
  font-size: 0.8rem;
  animation: floatY 6s ease-in-out infinite;
}
.hero-visual .float-card b { display: block; font-size: 0.86rem; font-weight: 700; }
.hero-visual .float-card small { color: var(--ink-3); }
.hero-visual .float-card .ic {
  width: 34px; height: 34px; border-radius: 9px; flex-shrink: 0;
  display: grid; place-items: center; color: #fff;
}
.hero-visual .fc-1 { top: 8%; left: -7%; animation-delay: .3s; }
.hero-visual .fc-2 { bottom: 6%; right: -5%; animation-delay: 1.2s; }
.hero-visual .fc-3 { bottom: -9%; left: 6%; animation-delay: 2s; }
@keyframes floatY { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }

/* 客户条 */
.logo-strip { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 1.4rem 0; overflow: hidden; }
.logo-strip .cap { text-align: center; font-family: var(--font-latin); font-size: 0.72rem; letter-spacing: 0.3em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 1.2rem; }
.logo-marquee { display: flex; gap: 3.5rem; width: max-content; animation: marquee 26s linear infinite; }
.logo-marquee:hover { animation-play-state: paused; }
.logo-marquee .logo {
  font-family: var(--font-serif); font-weight: 700; font-size: 1.14rem;
  color: #B9B5A9; letter-spacing: 0.1em; white-space: nowrap;
  display: inline-flex; align-items: center; gap: 0.5em;
  transition: color .3s var(--ease);
}
.logo-marquee .logo::before { content: "◆"; font-size: 0.5em; color: #D3CFC2; }
.logo-marquee .logo:hover { color: var(--ink); }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- 数据统计 ---------- */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; }
.stat { background: var(--surface); padding: 2.4rem 1.8rem; text-align: center; transition: background .4s var(--ease); }
.stat:hover { background: #FBFBF9; }
.stat .v { font-family: var(--font-serif); font-size: clamp(2.2rem, 4vw, 3.2rem); font-weight: 700; color: var(--ink); }
.stat .v .unit { font-size: 0.5em; color: var(--accent); margin-left: 0.12em; }
.stat .l { margin-top: 0.5rem; font-size: 0.9rem; color: var(--ink-3); letter-spacing: 0.08em; }

/* ---------- 业务卡片 ---------- */
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.4rem; }
.feature-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 2rem 1.7rem 1.9rem;
  overflow: hidden;
  transition: transform .5s var(--ease), box-shadow .5s var(--ease), border-color .5s var(--ease);
}
.feature-card::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 3px;
  background: linear-gradient(90deg, var(--accent), #7AA0FF);
  transform: scaleX(0); transform-origin: left;
  transition: transform .5s var(--ease);
}
.feature-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-2); border-color: transparent; }
.feature-card:hover::before { transform: scaleX(1); }
.feature-card .num { position: absolute; top: 1.4rem; right: 1.5rem; font-size: 0.78rem; font-weight: 700; letter-spacing: 0.2em; color: var(--line-2); }
.feature-card .ic {
  width: 52px; height: 52px; border-radius: 14px;
  display: grid; place-items: center;
  background: var(--accent-soft); color: var(--accent);
  margin-bottom: 1.5rem;
  transition: transform .45s var(--ease);
}
.feature-card:hover .ic { transform: translateY(-4px) scale(1.05); }
.feature-card h3 { font-size: 1.16rem; margin-bottom: 0.6rem; }
.feature-card p { font-size: 0.9rem; color: var(--ink-2); line-height: 1.85; }
.feature-card .more { display: inline-block; margin-top: 1.2rem; font-size: 0.84rem; color: var(--accent); font-weight: 600; opacity: 0; transform: translateY(6px); transition: opacity .4s var(--ease), transform .4s var(--ease); }
.feature-card:hover .more { opacity: 1; transform: translateY(0); }

/* ---------- 产品卡片 ---------- */
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.6rem; align-items: start; }
.product-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex; flex-direction: column;
  transition: transform .5s var(--ease), box-shadow .5s var(--ease);
}
.product-card:hover { transform: translateY(-10px); box-shadow: var(--shadow-2); }
.product-card .p-visual {
  position: relative; aspect-ratio: 4 / 2.9; overflow: hidden;
  display: grid; place-items: center;
  background: linear-gradient(145deg, #F3F2EC, #E9E7DF);
}
.product-card .p-visual::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(14,27,44,0.05));
}
.product-card .p-visual .tag {
  position: absolute; top: 1rem; left: 1rem; z-index: 2;
  font-size: 0.72rem; font-weight: 600; letter-spacing: 0.1em;
  color: var(--accent); background: rgba(255,255,255,0.85);
  padding: 0.3em 0.9em; border-radius: 999px;
  backdrop-filter: blur(4px);
  border: 1px solid var(--accent-line);
}
.product-card .p-visual svg { width: 62%; height: 62%; transition: transform .6s var(--ease); }
.product-card:hover .p-visual svg { transform: scale(1.06) translateY(-4px); }
.product-card .p-body { padding: 1.6rem 1.6rem 1.5rem; display: flex; flex-direction: column; flex: 1; }
.product-card .p-body h3 { font-size: 1.22rem; }
.product-card .p-body .en { font-family: var(--font-latin); font-size: 0.7rem; letter-spacing: 0.24em; text-transform: uppercase; color: var(--ink-3); margin: 0.4rem 0 0.7rem; }
.product-card .p-body p { font-size: 0.9rem; color: var(--ink-2); line-height: 1.85; }
.product-card .p-foot { margin-top: auto; padding-top: 1.2rem; border-top: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; }
.product-card .p-foot .ask { font-size: 0.84rem; color: var(--accent); font-weight: 600; display: inline-flex; align-items: center; gap: 0.4em; }
.product-card .p-foot .ask .arw { transition: transform .3s var(--ease); }
.product-card:hover .p-foot .ask .arw { transform: translateX(4px); }

/* 方案卡片 */
.solution-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.6rem; }
.solution-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 2.4rem;
  transition: transform .5s var(--ease), box-shadow .5s var(--ease);
  display: flex; flex-direction: column; justify-content: space-between; gap: 2rem;
}
.solution-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-2); }
.solution-card .s-top { display: flex; justify-content: space-between; align-items: flex-start; }
.solution-card .s-top .en { font-family: var(--font-latin); font-size: 0.72rem; letter-spacing: 0.28em; text-transform: uppercase; color: var(--ink-3); }
.solution-card h3 { font-size: 1.5rem; margin: 1.1rem 0 0.8rem; }
.solution-card p { color: var(--ink-2); font-size: 0.95rem; }
.solution-card .s-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.solution-card .s-tags span { font-size: 0.78rem; color: var(--ink-2); background: var(--bg-soft); border: 1px solid var(--line); padding: 0.3em 0.9em; border-radius: 999px; }
.solution-card .s-foot { border-top: 1px solid var(--line); padding-top: 1.3rem; display: flex; justify-content: space-between; align-items: center; }
.solution-card .s-foot .stat { font-family: var(--font-latin); font-size: 0.82rem; color: var(--ink-3); background: none; padding: 0; }
.solution-card .s-foot .stat b { color: var(--accent); font-size: 1.1rem; margin-right: 0.3em; }
.solution-card .num {
  font-family: var(--font-latin); font-weight: 800; font-size: 2.6rem;
  color: transparent; -webkit-text-stroke: 1px var(--line-2);
  line-height: 1;
}
.solution-card .s-cover { border-radius: var(--radius-md); overflow: hidden; aspect-ratio: 16 / 9; background: var(--bg-soft); }
.solution-card .s-cover img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .6s var(--ease); }
.solution-card:hover .s-cover img { transform: scale(1.045); }
.solution-card:has(.s-cover) { gap: 1.1rem; justify-content: flex-start; }
.solution-card:has(.s-cover) h3 { margin-top: 0.4rem; }

/* 优势列表 */
.edge-wrap { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: clamp(2.5rem, 6vw, 5rem); align-items: center; }
.edge-list { counter-reset: edge; }
.edge-item {
  display: flex; gap: 1.6rem; padding: 1.5rem 0;
  border-bottom: 1px solid var(--line);
  transition: padding-left .45s var(--ease);
}
.edge-item:hover { padding-left: 0.8rem; }
.edge-item:last-child { border-bottom: none; }
.edge-item .no {
  counter-increment: edge; flex-shrink: 0;
  font-family: var(--font-latin); font-weight: 800; font-size: 1.1rem;
  color: var(--accent);
}
.edge-item .no::before { content: "0" counter(edge); }
.edge-item h3 { font-size: 1.18rem; margin-bottom: 0.4rem; }
.edge-item p { color: var(--ink-2); font-size: 0.92rem; }
.edge-visual { position: relative; }
.edge-visual .panel {
  background: var(--ink); color: #fff;
  border-radius: var(--radius-lg);
  padding: 2.4rem;
  transform: rotate(-1.5deg);
  box-shadow: var(--shadow-2);
  transition: transform .6s var(--ease);
}
.edge-visual .panel:hover { transform: rotate(0deg); }
.edge-visual .panel .bar { height: 10px; border-radius: 6px; background: rgba(255,255,255,0.08); margin-bottom: 0.7rem; overflow: hidden; position: relative; }
.edge-visual .panel .bar::after { content: ""; position: absolute; inset: 0; width: 68%; background: linear-gradient(90deg, var(--accent), #7AA0FF); border-radius: 6px; }
.edge-visual .panel .bar.b2::after { width: 86%; }
.edge-visual .panel .bar.b3::after { width: 74%; }
.edge-visual .panel .bar.b4::after { width: 92%; }
.edge-visual .panel .kpi { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; margin-top: 1.6rem; }
.edge-visual .panel .kpi div { background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.08); border-radius: 12px; padding: 1rem; }
.edge-visual .panel .kpi b { font-family: var(--font-latin); font-size: 1.5rem; color: #fff; }
.edge-visual .panel .kpi small { display: block; color: rgba(255,255,255,0.5); font-size: 0.76rem; margin-top: 0.2rem; letter-spacing: 0.08em; }
.edge-visual .badge-float {
  position: absolute; top: -1.4rem; right: -1rem;
  background: var(--accent); color: #fff;
  border-radius: 14px; padding: 0.9rem 1.2rem;
  box-shadow: 0 14px 30px -12px rgba(43,92,255,0.8);
  font-family: var(--font-serif); font-size: 0.92rem; font-weight: 600;
  animation: floatY 5s ease-in-out infinite;
}

/* 动态列表 */
.news-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 1.6rem; }
.news-feature {
  position: relative; border-radius: var(--radius-lg); overflow: hidden;
  background: var(--ink); color: #EDF0F6; min-height: 340px;
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: 2.2rem;
  transition: transform .5s var(--ease), box-shadow .5s var(--ease);
}
.news-feature:hover { transform: translateY(-6px); box-shadow: var(--shadow-2); }
.news-feature .bg { position: absolute; inset: 0; background: radial-gradient(120% 120% at 20% 0%, rgba(43,92,255,0.35), transparent 60%), linear-gradient(160deg, #14223A, #0C1626); }
.news-feature .bg::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 30%, rgba(0,0,0,0.55)); }
.news-feature .date { font-family: var(--font-latin); font-size: 0.76rem; letter-spacing: 0.2em; color: rgba(255,255,255,0.6); position: relative; z-index: 1; }
.news-feature h3 { font-size: 1.4rem; margin: 0.8rem 0 0.6rem; position: relative; z-index: 1; line-height: 1.5; }
.news-feature .more { position: relative; z-index: 1; color: #fff; border-color: rgba(255,255,255,0.4); margin-top: 1rem; align-self: flex-start; }
.news-list { display: flex; flex-direction: column; }
.news-more { margin-top: 2.5rem; }
.news-grid.is-filtered { grid-template-columns: 1fr; }
.news-grid.is-filtered + .news-more { margin-top: 0; }
.news-item {
  display: flex; gap: 1.3rem; align-items: flex-start;
  padding: 1.35rem 0.4rem;
  border-bottom: 1px solid var(--line);
  transition: padding-left .4s var(--ease);
}
.news-item:first-child { padding-top: 0.2rem; }
.news-item:last-child { border-bottom: none; }
.news-item:hover { padding-left: 0.8rem; }
.news-item .date { font-family: var(--font-latin); font-size: 0.8rem; color: var(--ink-3); white-space: nowrap; padding-top: 0.2rem; letter-spacing: 0.06em; }
.news-item .d-body { flex: 1; }
.news-item .d-body .cat { font-size: 0.72rem; color: var(--accent); letter-spacing: 0.12em; }
.news-item .d-body h4 { font-size: 0.98rem; font-weight: 600; margin-top: 0.3rem; line-height: 1.6; transition: color .3s var(--ease); }
.news-item:hover .d-body h4 { color: var(--accent); }
.news-item .arw { color: var(--line-2); align-self: center; transition: color .3s var(--ease), transform .3s var(--ease); }
.news-item:hover .arw { color: var(--accent); transform: translateX(4px); }
.news-item .thumb { width: 108px; aspect-ratio: 16 / 10; border-radius: 10px; overflow: hidden; flex-shrink: 0; background: var(--bg-soft); align-self: center; }
.news-item .thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* CTA 带 */
.cta-band { position: relative; overflow: hidden; background: var(--ink); color: #fff; border-radius: var(--radius-lg); padding: clamp(2.8rem, 6vw, 4.5rem) clamp(2rem, 5vw, 4rem); display: flex; justify-content: space-between; align-items: center; gap: 2.5rem; flex-wrap: wrap; }
.cta-band::before { content: ""; position: absolute; width: 480px; height: 480px; border-radius: 50%; right: -140px; top: -160px; background: radial-gradient(circle, rgba(43,92,255,0.4), transparent 65%); filter: blur(20px); }
.cta-band h2 { font-size: clamp(1.6rem, 3.4vw, 2.4rem); position: relative; }
.cta-band p { color: rgba(255,255,255,0.65); margin-top: 0.7rem; position: relative; }
.cta-band .cta-row { display: flex; gap: 1rem; position: relative; }

/* ============================================================
   内页通用
   ============================================================ */
.page-hero { position: relative; padding: clamp(1.6rem, 4vw, 2.8rem) 0 clamp(1rem, 3vw, 1.8rem); border-bottom: 1px solid var(--line); overflow: hidden; }
.page-hero::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(rgba(14,27,44,0.04) 1px, transparent 1px), linear-gradient(90deg, rgba(14,27,44,0.04) 1px, transparent 1px);
  background-size: 68px 68px;
  mask-image: radial-gradient(ellipse 70% 100% at 80% 0%, #000 10%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 70% 100% at 80% 0%, #000 10%, transparent 70%);
}
.page-hero .wrap { position: relative; }
.page-hero h1 { font-size: clamp(2.2rem, 4.6vw, 3.4rem); margin-top: 0.6rem; }
.page-hero .lead { margin-top: 0.8rem; max-width: 42em; }
.breadcrumb { font-family: var(--font-latin); font-size: 0.78rem; letter-spacing: 0.1em; color: var(--ink-3); text-transform: uppercase; display: flex; gap: 0.6em; align-items: center; }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb .sep { color: var(--line-2); }

/* 筛选标签 */
.filter-bar { display: flex; flex-wrap: wrap; gap: 0.7rem; margin: 2.2rem 0 2.8rem; }
.filter-chip {
  font-size: 0.9rem; font-weight: 500; color: var(--ink-2);
  padding: 0.55em 1.4em; border-radius: 999px;
  border: 1px solid var(--line-2);
  background: var(--surface);
  transition: all .3s var(--ease);
}
.filter-chip:hover { border-color: var(--accent); color: var(--accent); }
.filter-chip.active { background: var(--ink); color: #fff; border-color: var(--ink); }

/* 信息表 */
.spec-table { width: 100%; border-collapse: collapse; background: var(--surface); border-radius: var(--radius); overflow: hidden; }
.spec-table th, .spec-table td { padding: 1.05rem 1.4rem; border-bottom: 1px solid var(--line); text-align: left; font-size: 0.94rem; }
.spec-table th { background: var(--bg-soft); font-weight: 600; width: 220px; color: var(--ink-2); letter-spacing: 0.04em; }
.spec-table tr:last-child th, .spec-table tr:last-child td { border-bottom: none; }

/* ============================================================
   产品详情
   ============================================================ */
.pd-hero { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2.5rem, 6vw, 4.5rem); align-items: center; }
.pd-hero .pd-visual {
  background: linear-gradient(145deg, #F3F2EC, #E7E5DC);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  aspect-ratio: 1 / 0.82;
  display: grid; place-items: center;
  position: relative; overflow: hidden;
}
.pd-hero .pd-visual::before { content: ""; position: absolute; width: 200px; height: 200px; border-radius: 50%; background: radial-gradient(circle, rgba(43,92,255,0.18), transparent 70%); right: -40px; top: -40px; filter: blur(10px); }
.pd-hero .pd-visual svg { width: 60%; height: 60%; position: relative; z-index: 1; }
.pd-hero h1 { font-size: clamp(2rem, 4vw, 3rem); margin-top: 1.1rem; }
.pd-hero .en { font-family: var(--font-latin); font-size: 0.76rem; letter-spacing: 0.3em; text-transform: uppercase; color: var(--accent); }
.pd-hero .sub { margin-top: 1.3rem; color: var(--ink-2); }
.pd-hero .spec-mini { margin-top: 1.8rem; display: flex; flex-wrap: wrap; gap: 2rem; }
.pd-hero .spec-mini b { display: block; font-family: var(--font-serif); font-size: 1.3rem; }
.pd-hero .spec-mini span { font-size: 0.8rem; color: var(--ink-3); }
.pd-hero .cta-row { margin-top: 2.2rem; display: flex; gap: 1rem; flex-wrap: wrap; }

.pd-section { padding: clamp(3.5rem, 6vw, 5rem) 0; border-bottom: 1px solid var(--line); }
.pd-section:last-of-type { border-bottom: none; }
.pd-section h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); margin-bottom: 2rem; }
.pd-section .lbl { font-family: var(--font-latin); font-size: 0.74rem; font-weight: 700; letter-spacing: 0.3em; color: var(--accent); text-transform: uppercase; display: block; margin-bottom: 0.9rem; }

.advantage-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; }
.advantage-item { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.8rem; transition: transform .5s var(--ease), box-shadow .5s var(--ease); }
.advantage-item:hover { transform: translateY(-6px); box-shadow: var(--shadow-1); }
.advantage-item .no { font-family: var(--font-latin); font-weight: 800; color: var(--accent); font-size: 0.9rem; }
.advantage-item h3 { font-size: 1.1rem; margin: 0.8rem 0 0.5rem; }
.advantage-item p { font-size: 0.88rem; color: var(--ink-2); }

/* 案例卡片 */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.6rem; }
.case-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; transition: transform .5s var(--ease), box-shadow .5s var(--ease); }
.case-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-2); }
.case-card .cv { aspect-ratio: 16/8; background: linear-gradient(145deg, #EDEBE3, #E0DED4); display: grid; place-items: center; position: relative; overflow: hidden; }
.case-card .cv svg { width: 54%; }
.case-card .cb { padding: 1.5rem 1.6rem; }
.case-card .cb .tag { font-size: 0.72rem; color: var(--accent); letter-spacing: 0.1em; }
.case-card .cb h3 { font-size: 1.1rem; margin: 0.5rem 0 0.4rem; }
.case-card .cb p { font-size: 0.88rem; color: var(--ink-2); }

/* ---------- 关于：时间线 ---------- */
.timeline { position: relative; max-width: 860px; }
.timeline::before { content: ""; position: absolute; left: 7px; top: 0; bottom: 0; width: 1px; background: var(--line-2); }
.tl-item { position: relative; padding: 0 0 2.6rem 3rem; }
.tl-item::before { content: ""; position: absolute; left: 0; top: 0.45rem; width: 15px; height: 15px; border-radius: 50%; background: var(--surface); border: 3px solid var(--accent); box-shadow: 0 0 0 4px rgba(43,92,255,0.12); }
.tl-item .year { font-family: var(--font-serif); font-size: 1.5rem; font-weight: 700; color: var(--accent); }
.tl-item h4 { margin-top: 0.4rem; font-size: 1.05rem; }
.tl-item p { color: var(--ink-2); font-size: 0.92rem; margin-top: 0.3rem; max-width: 46em; }

/* 资质 */
.honor-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.4rem; }
.honor-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.9rem 1.6rem; text-align: center; transition: transform .5s var(--ease), box-shadow .5s var(--ease); }
.honor-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-1); }
.honor-card .ic { width: 46px; height: 46px; margin: 0 auto 1rem; border-radius: 12px; background: var(--accent-soft); color: var(--accent); display: grid; place-items: center; }
.honor-card h4 { font-size: 1.02rem; }
.honor-card p { font-size: 0.8rem; color: var(--ink-3); margin-top: 0.3rem; }

/* 文化/团队 */
.value-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; }
.value-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 2rem 1.8rem; position: relative; overflow: hidden; transition: transform .5s var(--ease), box-shadow .5s var(--ease); }
.value-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-1); }
.value-card .big { font-family: var(--font-serif); font-size: 2.4rem; font-weight: 700; color: var(--bg-soft); position: absolute; top: 0.6rem; right: 1.2rem; line-height: 1; }
.value-card h3 { font-size: 1.18rem; margin-bottom: 0.6rem; }
.value-card p { font-size: 0.9rem; color: var(--ink-2); }

/* 联系页 */
.contact-grid { display: grid; grid-template-columns: 1fr 1.15fr; gap: clamp(2.5rem, 5vw, 4rem); align-items: start; }
.contact-cards { display: flex; flex-direction: column; gap: 1rem; }
.contact-item { display: flex; gap: 1.2rem; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.5rem 1.6rem; align-items: flex-start; transition: transform .4s var(--ease), box-shadow .4s var(--ease); }
.contact-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-1); }
.contact-item .ic { width: 46px; height: 46px; border-radius: 12px; background: var(--accent-soft); color: var(--accent); display: grid; place-items: center; flex-shrink: 0; }
.contact-item .l { font-size: 0.8rem; color: var(--ink-3); letter-spacing: 0.1em; }
.contact-item .v { font-weight: 600; margin-top: 0.2rem; word-break: break-all; }
.contact-item .v a:hover { color: var(--accent); }
.map-box { margin-top: 1rem; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--bg-soft); position: relative; height: 200px; display: grid; place-items: center; }
.map-box::before { content: ""; position: absolute; inset: 0; background: linear-gradient(rgba(14,27,44,0.06) 1px, transparent 1px), linear-gradient(90deg, rgba(14,27,44,0.06) 1px, transparent 1px); background-size: 36px 36px; mask-image: radial-gradient(circle, #000 20%, transparent 75%); }
.map-box .pin { width: 44px; height: 44px; border-radius: 50% 50% 50% 0; background: var(--accent); transform: rotate(-45deg); box-shadow: 0 10px 24px -8px rgba(43,92,255,0.8); position: relative; z-index: 1; }
.map-box .pin::after { content: ""; position: absolute; inset: 50%; transform: translate(-50%,-50%) rotate(45deg); width: 14px; height: 14px; background: #fff; border-radius: 50%; }
.map-box .maplabel { position: absolute; bottom: 0.8rem; left: 1rem; z-index: 1; font-size: 0.78rem; color: var(--ink-3); background: rgba(255,255,255,0.8); padding: 0.3em 0.9em; border-radius: 999px; }

/* 表单 */
.form-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: clamp(1.8rem, 4vw, 2.8rem); box-shadow: var(--shadow-1); }
.form-card h3 { font-size: 1.4rem; margin-bottom: 0.4rem; }
.form-card .fsub { color: var(--ink-3); font-size: 0.9rem; margin-bottom: 2rem; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.3rem; }
.form-field { display: flex; flex-direction: column; gap: 0.5rem; }
.form-field.full { grid-column: 1 / -1; }
.form-field label { font-size: 0.88rem; font-weight: 500; color: var(--ink-2); }
.form-field label .req { color: var(--accent); }
.form-field input, .form-field select, .form-field textarea {
  font-family: inherit; font-size: 0.95rem; color: var(--ink);
  background: var(--bg); border: 1px solid var(--line-2); border-radius: 10px;
  padding: 0.85em 1.1em;
  transition: border-color .3s var(--ease), box-shadow .3s var(--ease), background .3s;
  width: 100%;
}
.form-field textarea { resize: vertical; min-height: 120px; }
.form-field input:focus, .form-field select:focus, .form-field textarea:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
  background: var(--surface);
}
.form-field input::placeholder, .form-field textarea::placeholder { color: #B7BED0; }
.form-note { font-size: 0.78rem; color: var(--ink-3); margin-top: 1rem; }
.form-ok { display: none; margin-top: 1.2rem; padding: 1rem 1.2rem; border-radius: 10px; background: rgba(31,157,107,0.1); border: 1px solid rgba(31,157,107,0.3); color: var(--good); font-size: 0.92rem; }
.form-ok.show { display: block; animation: fadeUp .5s var(--ease); }

/* 时间选择 */
.time-chips { display: flex; flex-wrap: wrap; gap: 0.6rem; }
.time-chip { font-size: 0.86rem; padding: 0.5em 1.2em; border: 1px solid var(--line-2); border-radius: 999px; color: var(--ink-2); transition: all .3s var(--ease); }
.time-chip.active, .time-chip:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-soft); }

/* ---------- 滚动揭示 ---------- */
[data-reveal] { opacity: 0; transform: translateY(28px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
[data-reveal].revealed { opacity: 1; transform: none; }
[data-reveal="left"] { transform: translateX(-36px); }
[data-reveal="left"].revealed { transform: none; }
[data-reveal="right"] { transform: translateX(36px); }
[data-reveal="right"].revealed { transform: none; }
[data-reveal="scale"] { transform: scale(0.94); }
[data-reveal="scale"].revealed { transform: none; }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1080px) {
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .product-grid { grid-template-columns: 1fr 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { max-width: 560px; }
  .edge-wrap { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .pd-hero { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 860px) {
  .main-nav {
    position: fixed; inset: var(--header-h) 0 auto 0; z-index: 89;
    background: rgba(247,246,242,0.98); backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--line);
    padding: 1.2rem var(--gutter) 2rem;
    transform: translateY(-8px); opacity: 0; pointer-events: none;
    transition: transform .4s var(--ease), opacity .4s var(--ease);
    box-shadow: 0 30px 60px -30px rgba(14,27,44,0.25);
  }
  .main-nav.is-open { transform: none; opacity: 1; pointer-events: auto; }
  .main-nav ul { flex-direction: column; gap: 0; }
  .main-nav a { display: block; padding: 1rem 0; font-size: 1.12rem; border-bottom: 1px solid var(--line); }
  .main-nav a.active { color: var(--accent); text-shadow: none; }
  .nav-ink { display: none; }
  .burger { display: flex; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .solution-grid { grid-template-columns: 1fr; }
  .product-grid { grid-template-columns: 1fr; }
  .case-grid, .advantage-grid, .value-grid, .honor-grid { grid-template-columns: 1fr 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; gap: 2rem; }
  .hero-visual .fc-1 { left: 2%; }
  .hero-visual .fc-2 { right: 2%; }
  .cta-band { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 560px) {
  .case-grid, .advantage-grid, .value-grid, .honor-grid { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 1px; }
  .sec-head { flex-direction: column; align-items: flex-start; gap: 1rem; }
}

/* 搜索浮层 */
.search-toggle { width: 38px; height: 38px; display: grid; place-items: center; color: var(--ink-2); border: 1px solid var(--line-2); border-radius: 999px; background: transparent; transition: background .3s, color .3s, border-color .3s; }
.search-toggle:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-soft); }

.search-overlay { position: fixed; inset: 0; z-index: 120; background: rgba(12,22,38,0.45); backdrop-filter: blur(6px); opacity: 0; pointer-events: none; transition: opacity .35s var(--ease); }
.search-overlay.show { opacity: 1; pointer-events: auto; }
.search-panel { position: absolute; top: 0; left: 0; right: 0; background: var(--surface); padding: 1.1rem var(--gutter); box-shadow: 0 20px 50px -20px rgba(14,27,44,0.3); border-bottom: 1px solid var(--line); transform: translateY(-100%); transition: transform .4s var(--ease); }
.search-overlay.show .search-panel { transform: none; }
.search-panel form { max-width: var(--maxw); margin: 0 auto; display: flex; align-items: center; gap: 1rem; }
.search-panel input { flex: 1; font-family: var(--font-serif); font-size: 1.4rem; border: none; background: none; outline: none; color: var(--ink); }
.search-panel input::placeholder { color: #B7BED0; }
.search-panel .close { width: 40px; height: 40px; display: grid; place-items: center; border-radius: 10px; color: var(--ink-2); flex-shrink: 0; }
.search-panel .close:hover { background: var(--bg-soft); color: var(--ink); }
.search-panel .hint { font-family: var(--font-latin); font-size: 0.68rem; letter-spacing: 0.2em; color: var(--ink-3); text-transform: uppercase; white-space: nowrap; }

/* 实时搜索结果 */
.search-results { max-width: var(--maxw); margin: 0 auto; display: none; padding: 0.4rem 0 1.2rem; max-height: 62vh; overflow-y: auto; }
.search-results.show { display: block; }
.sr-group { padding-top: 1rem; }
.sr-group h5 { font-family: var(--font-latin); font-size: 0.68rem; letter-spacing: 0.22em; text-transform: uppercase; color: var(--ink-3); font-weight: 600; margin-bottom: 0.4rem; }
.sr-item { display: block; padding: 0.75rem 0.9rem; border-radius: 12px; transition: background .25s; }
.sr-item:hover { background: var(--accent-soft); }
.sr-item b { display: inline-block; font-size: 1rem; font-weight: 600; color: var(--ink); margin-right: 0.6rem; }
.sr-item:hover b { color: var(--accent); }
.sr-item .sr-sub { font-family: var(--font-latin); font-size: 0.74rem; letter-spacing: 0.08em; color: var(--ink-3); }
.sr-item p { font-size: 0.86rem; color: var(--ink-2); line-height: 1.6; margin-top: 0.25rem; display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; overflow: hidden; }
.sr-empty { padding: 1.6rem 0.9rem 0.6rem; font-size: 0.94rem; color: var(--ink-2); line-height: 1.8; }
.sr-empty a { color: var(--accent); font-weight: 600; }

/* 减少动效偏好 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001s !important; animation-iteration-count: 1 !important; transition-duration: 0.001s !important; }
  html { scroll-behavior: auto; }
}

/* ============ 首页 Hero 全屏轮播（浅雾蓝极光 + 居中排版） ============ */
.hero-carousel {
  position: relative; overflow: hidden; color: var(--ink);
  height: clamp(560px, 84vh, 820px);
  background:
    radial-gradient(1100px 560px at 80% -8%, rgba(43, 92, 255, .06), transparent 62%),
    linear-gradient(180deg, #F6F7FB 0%, #F7F6F2 100%);
}
.hc-slide {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden;
  transition: opacity 1s ease, visibility 0s linear 1s;
}
.hc-slide.is-active { opacity: 1; visibility: visible; z-index: 1; transition: opacity 1s ease; }

/* 细网格纹理（边缘径向淡出） */
.hc-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(14,27,44,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(14,27,44,.04) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: radial-gradient(ellipse 90% 80% at 50% 42%, #000 30%, transparent 78%);
  mask-image: radial-gradient(ellipse 90% 80% at 50% 42%, #000 30%, transparent 78%);
}
/* 极光光斑：两团大半径模糊光晕缓慢漂移（浅色调） */
.hc-glow {
  position: absolute; border-radius: 50%;
  filter: blur(90px); pointer-events: none;
}
.hc-glow.g1 {
  width: 56vw; height: 56vw; max-width: 880px; max-height: 880px;
  left: 50%; top: -32%;
  background: radial-gradient(circle at 50% 50%, rgba(43,92,255,.12), transparent 62%);
  transform: translateX(-72%);
  animation: hcDrift1 16s ease-in-out infinite alternate;
}
.hc-glow.g2 {
  width: 46vw; height: 46vw; max-width: 720px; max-height: 720px;
  right: -8%; bottom: -36%;
  background: radial-gradient(circle at 50% 50%, rgba(122,79,255,.09), transparent 62%);
  animation: hcDrift2 20s ease-in-out infinite alternate;
}
.hc-slide:nth-of-type(2) .hc-glow.g1 { background: radial-gradient(circle at 50% 50%, rgba(34,197,214,.11), transparent 62%); }
.hc-slide:nth-of-type(2) .hc-glow.g2 { background: radial-gradient(circle at 50% 50%, rgba(43,92,255,.12), transparent 62%); }
.hc-slide:nth-of-type(3) .hc-glow.g1 { background: radial-gradient(circle at 50% 50%, rgba(122,79,255,.11), transparent 62%); }
.hc-slide:nth-of-type(3) .hc-glow.g2 { background: radial-gradient(circle at 50% 50%, rgba(34,197,214,.09), transparent 62%); }
@keyframes hcDrift1 { to { transform: translateX(-40%) translateY(6%); } }
@keyframes hcDrift2 { to { transform: translateX(6%) translateY(-8%); } }

/* 随机光斑：JS 定时在随机位置生成，淡入漂移后消散 */
.hc-orbs { position: absolute; inset: 0; z-index: 0; pointer-events: none; }
.hc-orb { position: absolute; border-radius: 50%; filter: blur(64px); will-change: transform, opacity; }

/* 上传图片的轮播：图片打底 + 浅色纱罩保证墨字可读 */
.hc-bg { position: absolute; inset: 0; background-size: cover; background-position: center; }
.hc-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(247,246,242,.62) 0%, rgba(247,246,242,.55) 55%, rgba(247,246,242,.88) 100%);
}

/* 居中内容：徽章 → 大标题 → 副标题 → 按钮 */
.hc-content {
  position: relative; z-index: 2; width: 100%;
  display: flex; flex-direction: column; align-items: center; text-align: center;
  opacity: 0; transform: translateY(30px);
  transition: opacity .9s ease .25s, transform .9s var(--ease) .25s;
}
.hc-slide.is-active .hc-content { opacity: 1; transform: none; }
.hc-chip {
  display: inline-flex; align-items: center; gap: .55em;
  padding: .5em 1.3em; border-radius: 999px;
  border: 1px solid rgba(43,92,255,.4);
  background: rgba(43,92,255,.06);
  font-family: var(--font-latin); font-size: .74rem; font-weight: 700;
  letter-spacing: .28em; color: var(--accent-deep); text-transform: uppercase;
  backdrop-filter: blur(6px);
}
.hc-chip .dot {
  width: 7px; height: 7px; border-radius: 50%; background: #2B5CFF;
  box-shadow: 0 0 0 0 rgba(43,92,255,.5);
  animation: hcPulse 2.2s ease-out infinite;
}
@keyframes hcPulse {
  0% { box-shadow: 0 0 0 0 rgba(43,92,255,.5); }
  70% { box-shadow: 0 0 0 9px rgba(43,92,255,0); }
  100% { box-shadow: 0 0 0 0 rgba(43,92,255,0); }
}
.hc-title {
  font-size: clamp(2.7rem, 6.2vw, 4.9rem);
  line-height: 1.22; letter-spacing: .02em;
  margin: 2.2rem 0 0; text-wrap: balance;
}
.hc-title .hc-accent {
  font-style: normal;
  background: linear-gradient(94deg, #2B5CFF 0%, #00A8CC 58%, #7A4FFF 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hc-sub {
  margin: 1.9rem auto 0; max-width: 44em;
  color: var(--ink-2); font-size: 1.05rem; line-height: 2;
}
.hc-ctas { margin-top: 3rem; display: flex; gap: 1.1rem; flex-wrap: wrap; justify-content: center; }
.hc-btn-main {
  background: linear-gradient(135deg, #3E6EFF, #2B5CFF 60%, #1B47E0);
  color: #fff;
  box-shadow: 0 14px 34px -12px rgba(43,92,255,.55);
}
.hc-btn-main:hover { color: #fff; transform: translateY(-2px); box-shadow: 0 20px 44px -14px rgba(43,92,255,.7); }
.hc-ghost {
  border: 1px solid rgba(14,27,44,.28); color: var(--ink);
  background: rgba(255,255,255,.5);
  backdrop-filter: blur(6px);
}
.hc-ghost:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-soft); transform: translateY(-2px); }

/* 左右翻页：平时隐藏，鼠标靠近左右边缘时浮现 */
.hc-arrow {
  position: absolute; top: 50%;
  z-index: 3; width: 46px; height: 46px;
  display: grid; place-items: center;
  border-radius: 50%;
  border: 1px solid rgba(14,27,44,.16);
  background: rgba(255,255,255,.8);
  color: var(--ink-2);
  backdrop-filter: blur(8px);
  opacity: 0; pointer-events: none;
  transition: opacity .35s var(--ease), transform .35s var(--ease), border-color .3s var(--ease), background .3s var(--ease), color .3s var(--ease), box-shadow .3s var(--ease);
}
.hc-arrow.show { opacity: 1; pointer-events: auto; }
.hc-arrow.hc-prev { transform: translateY(-50%) translateX(-8px); left: clamp(.8rem, 2.6vw, 2.4rem); }
.hc-arrow.hc-next { transform: translateY(-50%) translateX(8px); right: clamp(.8rem, 2.6vw, 2.4rem); }
.hc-arrow.hc-prev.show, .hc-arrow.hc-next.show { transform: translateY(-50%) translateX(0); }
.hc-arrow:hover {
  border-color: var(--accent);
  background: #fff;
  color: var(--accent);
  box-shadow: 0 10px 28px -10px rgba(43,92,255,.5);
}

/* 横条指示器 */
.hc-dots { position: absolute; bottom: 2.2rem; left: 50%; transform: translateX(-50%); z-index: 3; display: flex; gap: .55rem; }
.hc-dots button { width: 26px; height: 4px; border-radius: 99px; background: rgba(14,27,44,.2); cursor: pointer; transition: all .35s ease; padding: 0; }
.hc-dots button.on { width: 48px; background: linear-gradient(90deg, #2B5CFF, #00A8CC); }

@media (max-width: 860px) {
  .hero-carousel { height: auto; min-height: 560px; padding: 6.5rem 0 5rem; }
  .hc-slide { position: absolute; }
  .hc-arrow { display: none; }
  .hc-dots { bottom: 1.6rem; }
  .hc-title { font-size: clamp(2.2rem, 9vw, 3rem); }
  .hc-ctas { flex-direction: column; width: min(320px, 86vw); }
  .hc-ctas .btn { width: 100%; }
}


}