/* ==========================================================================
   联信无界 — 纯静态站点样式（内页）
   配色已对齐「新首页 浅色科技风 V2」：blue #1497ec / cyan #25c3f0 / violet #7b5cf0
   并做扁平化处理（弱化阴影与景深，层级改由 1px 描边表达）
   ========================================================================== */

:root {
  /* ===== 新首页配色（唯一真源：桌面/联信无界/css/style.css）===== */
  --blue: #1497ec;
  --cyan-brand: #25c3f0;
  --violet-brand: #7b5cf0;
  --ink: #1c2430;
  --ink-2: #4a5768;
  --ink-3: #7b8798;

  --canvas: #f4f8fd;        /* 页面底色  ← 新首页 --bg-tint */
  --line: #e6ecf4;          /* 分隔线    ← 新首页 --line */
  --cream: #1c2430;         /* 主文字/深色页脚底 ← 新首页 --ink */
  --steel: #4a5768;         /* 次级文字  ← 新首页 --ink-2 */
  --dim: #7b8798;           /* 三级文字  ← 新首页 --ink-3 */
  --volt: #7b5cf0;          /* 品牌紫 → 新首页 --violet */
  --volt-strong: #6a48e0;
  --azure: #1497ec;         /* 品牌蓝 → 新首页 --blue */
  --azure-strong: #0d7fcc;
  --cyan: #25c3f0;          /* 品牌青 → 新首页 --cyan */
  --cyan-400: #4fd0f5;
  --cyan-500: #25c3f0;
  --cyan-600: #1497ec;
  --grad: linear-gradient(120deg, #1497ec 0%, #25c3f0 45%, #7b5cf0 100%);
  --grad-text: linear-gradient(100deg, #1497ec 5%, #25c3f0 50%, #7b5cf0 95%);
  --grad-soft: linear-gradient(115deg, rgba(20, 151, 236, .10) 0%, rgba(37, 195, 240, .10) 50%, rgba(123, 92, 240, .10) 100%);
  /* 导航下拉面板阴影 ← 首页 --shadow（内页样式表原先没有，随导航样式一并补齐） */
  --shadow: 0 10px 34px rgba(20, 90, 180, .10);
  /* 不引用任何外部字体（原 Noto Sans SC / JetBrains Mono 已移除），统一微软雅黑 */
  --font-sans: 'Microsoft YaHei', '微软雅黑', 'PingFang SC', 'Hiragino Sans GB', 'Heiti SC', 'WenQuanYi Micro Hei', sans-serif;
  --font-mono: 'Microsoft YaHei', '微软雅黑', 'PingFang SC', 'Hiragino Sans GB', sans-serif;
  /* 页脚深色主题令牌（对应需求：深色页脚） */
  --footer-line: rgba(255, 255, 255, .14);
  --footer-text: #c7d2e2;
  --footer-hover: #7ec8f5;
  /* 页脚品牌位主文字令牌（对应需求：品牌位移除图片、改为企业名称双行文字） */
  --footer-brand-name: #f2f6fc;
  /* ===== 扁平化阴影令牌（弱化景深，改用 1px 描边表达层级）===== */
  --shadow-flat: 0 2px 10px rgba(28, 36, 48, .05);
  --shadow-flat-lg: 0 8px 24px rgba(28, 36, 48, .07);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--canvas);
  color: var(--cream);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  line-height: 1.6;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; background: none; border: none; color: inherit; }
input, textarea, select { font-family: inherit; }
section[id] { scroll-margin-top: 68px; }
::selection { background: #7b5cf0; color: #fff; }
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: #f4f8fd; }
::-webkit-scrollbar-thumb { background: #cfdcec; border-radius: 8px; border: 2px solid #f4f8fd; }
::-webkit-scrollbar-thumb:hover { background: #b9cbe0; }

/* ---------- 布局容器（全站 max-w 1280px） ---------- */
.container { max-width: 1300px; margin: 0 auto; padding-left: 20px; padding-right: 20px; }

/* ---------- 滚动揭示 ---------- */
.rv { opacity: 0; transform: translateY(28px); transition: opacity .9s cubic-bezier(.22,1,.36,1), transform .9s cubic-bezier(.22,1,.36,1); transition-delay: var(--d, 0ms); will-change: opacity, transform; }
.rv-on { opacity: 1; transform: translateY(0); }

/* ---------- 蓝图网格背景 ---------- */
.bg-blueprint {
  background-image:
    linear-gradient(rgba(28, 36, 48, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(28, 36, 48, .045) 1px, transparent 1px);
  background-size: 56px 56px;
}

/* ---------- 品牌渐变 ---------- */
.text-grad { background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent; }
.bg-grad { background-image: var(--grad); }
.bg-grad-soft { background-image: var(--grad-soft); }
.grad-anim { background-size: 220% 220%; animation: gradient-x 6s ease-in infinite; }
@keyframes gradient-x { 0%, 100% { background-position: 0% 50%; } 50% { background-position: 100% 50%; } }

/* ---------- 动效 ---------- */
@keyframes ping-soft { 0% { transform: scale(1); opacity: .9; } 80%, 100% { transform: scale(2.6); opacity: 0; } }
.ping-soft { animation: ping-soft 2.2s cubic-bezier(0, 0, .2, 1) infinite; }
@keyframes scan-y { 0% { top: -12%; } 100% { top: 112%; } }
.scanline { animation: scan-y 7s cubic-bezier(.4, 0, .2, 1) infinite; }
@keyframes float-y { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
.float-y { animation: float-y 5s ease-in-out infinite; }
@keyframes float-y-late { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(9px); } }
.float-y-late { animation: float-y-late 6.5s ease-in-out infinite; }
@keyframes marquee-x { from { transform: translateX(0); } to { transform: translateX(-50%); } }
.logo-blend { mix-blend-mode: multiply; }

/* ---------- 顶部滚动进度条 ---------- */
#scroll-progress {
  position: fixed; top: 0; left: 0; height: 2.5px; width: 0;
  background: var(--grad); background-size: 220% 220%; animation: gradient-x 6s ease-in-out infinite;
  z-index: 100; border-radius: 0 2px 2px 0;
  box-shadow: 0 0.2px 2.2px rgba(20, 151, 236, 0.275);
}

/* 头部容器（底色、模糊、阴影对齐首页；高度保留内页的 68px，属版式不属配色）
   line-height:1.7 —— 首页 body 行高为 1.7，内页为 1.6；这里把导航区间单独对齐，
   避免为了一个行高去改动内页全站正文的行距。 */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  line-height: 1.7;
  background: rgba(255, 255, 255, .86);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: all .3s ease;
}
.nav.scrolled, .nav.open {
  border-bottom-color: var(--line);
  box-shadow: 0 6px 24px rgba(30, 80, 150, .08);
}
.nav-inner { max-width: 1300px; margin: 0 auto; height: 68px; display: flex; align-items: center; justify-content: space-between; padding: 0 20px; }
/* 品牌标改为直接书写的文字，不再用图片 */
.nav-logo { display: inline-flex; align-items: baseline; gap: 12px; line-height: 1; white-space: nowrap; }
.nav-logo:hover .bm-en, .nav-logo:hover .bm-cn { opacity: .82; }

/* ==========================================================================
   导航（配色与风格整体对齐首页 css/home.css）
   —— 类名与首页完全一致，两套样式表可逐行对照；颜色统一使用首页色板，
      内页原有的 --volt-strong / --steel / --cream / --grad-soft 别名不再用于导航。
   ========================================================================== */
.nav-inner .nav-links { display: none; align-items: center; gap: 10px; margin-left: auto; }
@media (min-width: 1024px) { .nav-inner .nav-links { display: flex; } }

/* 一级栏目：不用药丸底色，改用首页的渐变色下划线 */
.nav-link {
  position: relative; display: inline-flex; align-items: center;
  padding: 8px 14px; font-size: 15.5px; font-weight: 500;
  color: var(--ink-2); transition: color .25s; white-space: nowrap;
}
.nav-link::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: 2px;
  height: 3px; border-radius: 2px; background: var(--grad);
  transform: scaleX(0); transform-origin: left; transition: transform .3s;
}
.nav-link:hover { color: var(--blue); }
.nav-link:hover::after { transform: scaleX(1); }
.nav-link.active { color: var(--blue); }
.nav-link.active::after { transform: scaleX(1); }
.nav-link > span { position: relative; }
.nav-link svg.caret { width: 14px; height: 14px; margin-left: 2px; color: var(--ink-3); transition: transform .3s; }
.nav-item { position: relative; }
.nav-item:hover .nav-link svg.caret { transform: rotate(180deg); }

/* 下拉面板 */
.drop {
  position: absolute; left: 50%; top: 100%; transform: translateX(-50%);
  padding-top: 14px; z-index: 50;
  visibility: hidden; opacity: 0; transition: all .3s;
}
.nav-item:hover .drop { visibility: visible; opacity: 1; }
.drop-panel {
  transform: translateY(8px); transition: transform .3s;
  border: 1px solid var(--line); border-radius: 14px;
  background: rgba(255, 255, 255, .97);
  -webkit-backdrop-filter: blur(20px); backdrop-filter: blur(20px);
  box-shadow: var(--shadow);
  padding: 12px;
}
.nav-item:hover .drop-panel { transform: translateY(0); }
.drop-mega { width: 720px; padding: 24px; }
.drop-mega .cols { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.drop-about { width: 460px; padding: 24px; }
.drop-about .cols { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.drop-narrow { width: 300px; }
.drop-group-title {
  display: flex; align-items: center; gap: 6px; margin-bottom: 10px;
  font-size: 12px; font-weight: 700; letter-spacing: .05em; color: var(--blue);
}
.drop-group-title svg { width: 14px; height: 14px; }
.drop-link {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 12px; border-radius: 8px;
  font-size: 13.5px; color: var(--ink-2); transition: all .25s;
}
.drop-link:hover { background: rgba(20, 151, 236, .07); color: var(--blue); }
.drop-foot { margin-top: 12px; border-top: 1px solid var(--line); padding: 12px 12px 4px; }
.drop-foot a { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 600; }
.drop-foot em { font-style: normal; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.drop-foot svg { width: 14px; height: 14px; color: var(--blue); transition: transform .3s; }
.drop-foot a:hover svg { transform: translateX(4px); }
.drop-label { padding: 8px 12px 4px; font-size: 11px; font-weight: 600; letter-spacing: .15em; color: var(--ink-3); }

/* CTA：改用首页的渐变按钮 */
.nav-cta {
  display: none; align-items: center; gap: 8px; margin-left: 16px;
  padding: 11px 22px; border-radius: 10px; white-space: nowrap;
  background-image: var(--grad); color: #fff;
  font-size: 14.5px; font-weight: 600;
  box-shadow: 0 8px 22px rgba(20, 151, 236, .32);
  transition: transform .25s, box-shadow .25s;
}
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(20, 151, 236, .42); }
.nav-cta svg { width: 16px; height: 16px; }
@media (min-width: 1024px) { .nav-cta { display: inline-flex; } }

/* 汉堡按钮 */
.nav-toggle {
  display: grid; place-items: center; width: 40px; height: 40px; margin-left: auto;
  border: 1px solid var(--line); border-radius: 10px; color: var(--ink);
  background: rgba(255, 255, 255, .9); transition: border-color .25s, color .25s;
}
.nav-toggle:hover { border-color: var(--blue); color: var(--blue); }
.nav-toggle svg { width: 20px; height: 20px; }
.nav-toggle .ico-close { display: none; }
.nav-toggle.on .ico-menu { display: none; }
.nav-toggle.on .ico-close { display: block; }
@media (min-width: 1024px) { .nav-toggle { display: none; } }

/* 移动端抽屉 */
.mobile-panel {
  max-height: 0; overflow: hidden; transition: max-height .5s;
  border-bottom: 1px solid transparent;
  background: rgba(255, 255, 255, .97);
  -webkit-backdrop-filter: blur(20px); backdrop-filter: blur(20px);
}
.nav.open .mobile-panel { max-height: 80vh; overflow-y: auto; border-bottom-color: var(--line); }
.mp-body { padding: 16px 20px; display: flex; flex-direction: column; gap: 4px; }
.mp-link {
  display: flex; width: 100%; align-items: center; justify-content: space-between;
  padding: 12px 16px; border-radius: 10px; font-size: 15px; color: var(--ink-2);
  text-align: left; transition: background .25s, color .25s;
}
.mp-link:hover { background: rgba(20, 151, 236, .07); color: var(--blue); }
.mp-link svg.caret { width: 16px; height: 16px; color: var(--ink-3); transition: transform .3s; }
.mp-group.open > .mp-link svg.caret { transform: rotate(180deg); }
.mp-subs { max-height: 0; overflow: hidden; transition: max-height .35s; }
/* 720px：产品那一组有 16 个子项，内页原来写 520px 会裁掉最后两条 */
.mp-group.open .mp-subs { max-height: 720px; }
.mp-subs a {
  display: block; padding: 8px 16px 8px 32px; border-radius: 8px;
  font-size: 13.5px; color: var(--ink-3); transition: background .25s, color .25s;
}
.mp-subs a:hover { background: rgba(20, 151, 236, .07); color: var(--blue); }
.mp-cta {
  margin-top: 8px; display: flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px; border-radius: 10px;
  background-image: var(--grad); color: #fff; font-size: 15px; font-weight: 600;
}
.mp-cta svg { width: 16px; height: 16px; }

/* 触屏没有 hover：下拉改为点击展开 */
@media (hover: none) {
  .nav-item .drop { display: none; }
  .nav-item.open .drop { display: block; visibility: visible; opacity: 1; }
  .nav-item.open .drop-panel { transform: translateY(0); }
}


/* 键盘焦点：默认的黑色 outline 与首页风格不符，换成品牌蓝 */
.nav-link:focus-visible,
.drop-link:focus-visible,
.drop-foot a:focus-visible,
.nav-cta:focus-visible,
.nav-toggle:focus-visible,
.mp-link:focus-visible,
.mp-subs a:focus-visible,
.mp-cta:focus-visible,
.bm-en:focus-visible,
.nav-logo:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
  border-radius: 8px;
}
.mp-link:focus-visible, .mp-cta:focus-visible { outline-offset: -2px; border-radius: 10px; }
/* ==========================================================================
   通用元素
   ========================================================================== */
/* 版块 */
.sec { position: relative; border-top: 1px solid var(--line); padding: 80px 0; }
.sec.white { background: #fff; }
.eyebrow { font-family: var(--font-mono); font-size: 11px; letter-spacing: .3em; text-transform: uppercase; color: var(--volt); }
.eyebrow.azure { color: var(--azure); letter-spacing: .32em; }
.h2 { margin-top: 20px; font-size: 32px; font-weight: 900; line-height: 1.18; letter-spacing: -.01em; }

/* 按钮 */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 28px; border-radius: 16px; font-size: 15px;
  transition: all .3s;
}
.btn svg { width: 18px; height: 18px; }
.btn-grad {
  background-image: var(--grad); background-size: 220% 220%; animation: gradient-x 6s ease-in-out infinite;
  color: #fff; font-weight: 600;
}
.btn-grad:hover { box-shadow: 0 2.2px 10.1px rgba(20, 151, 236, 0.248); }
.btn-grad svg { transition: transform .3s; }
.btn-grad:hover svg { transform: translate(2px, -2px); }
.btn-ghost {
  border: 1px solid var(--line); background: #fff; color: var(--cream);
}
.btn-ghost:hover { border-color: rgba(20, 151, 236, .5); box-shadow: 0 1.4px 6.7px rgba(20, 151, 236, 0.088); }
.btn-ghost svg { color: var(--azure); transition: transform .3s; }
.btn-ghost:hover svg { transform: translateX(4px); }

/* 下划线文字按钮 */
.link-underline {
  display: inline-flex; align-items: center; gap: 8px;
  border-bottom: 1px solid rgba(123, 92, 240, .6); padding-bottom: 4px;
  font-size: 14px; color: var(--cream); transition: color .3s;
}
.link-underline:hover { color: var(--volt); }
.link-underline svg { width: 16px; height: 16px; color: var(--volt); transition: transform .3s; }
.link-underline:hover svg { transform: translate(2px, -2px); }

/* 渐变文字链接 */
.link-grad { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 600; }
.link-grad em { font-style: normal; background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent; }
.link-grad svg { width: 14px; height: 14px; color: var(--azure); transition: transform .3s; }
.link-grad:hover svg { transform: translateX(4px); }

/* 芯片 */
.chip {
  display: inline-flex; align-items: center;
  border-radius: 4px; padding: 4px 10px;
  background-image: var(--grad-soft);
  font-family: var(--font-mono); font-size: 10.5px; letter-spacing: .12em;
  color: var(--volt-strong); box-shadow: inset 0 0 0 1px rgba(123, 92, 240, .15);
}
.chip-canvas {
  display: inline-flex; align-items: center;
  border-radius: 6px; padding: 4px 10px;
  background: var(--canvas); font-size: 11px; font-weight: 500; color: var(--steel);
  box-shadow: inset 0 0 0 1px var(--line);
}
.chip-line {
  display: inline-flex; align-items: center;
  border: 1px solid var(--line); background: #fff; border-radius: 16px;
  padding: 6px 16px; font-size: 12px; color: var(--steel);
}

/* 图标块（渐变底） */
.icon-tile {
  display: grid; place-items: center; flex-shrink: 0;
  width: 44px; height: 44px; border-radius: 12px;
  background-image: var(--grad); color: #fff;
  box-shadow: 0 1.1px 5px rgba(20, 151, 236, 0.193);
}
.icon-tile svg { width: 20px; height: 20px; }
.icon-tile.sm { width: 36px; height: 36px; border-radius: 8px; }
.icon-tile.sm svg { width: 16px; height: 16px; }
.icon-tile.lg { width: 56px; height: 56px; border-radius: 16px; }
.icon-tile.lg svg { width: 24px; height: 24px; }
.icon-tile.soft {
  background-image: var(--grad-soft); color: var(--volt-strong);
  box-shadow: inset 0 0 0 1px rgba(123, 92, 240, .15);
}

/* 居中版块标题（内页） */
.sec-head {margin: 0 auto; text-align: center; }
.sec-head .eyebrow { color: var(--azure); letter-spacing: .32em; }
.sec-head h2 { margin-top: 12px; font-size: 32px; font-weight: 900; line-height: 1.25; letter-spacing: -.01em; }
.sec-head .bar { display: block; margin: 20px auto 0; width: 56px; height: 3px; border-radius: 16px; background-image: var(--grad); }
.sec-head .desc { margin-top: 20px; font-size: 14px; line-height: 1.9; color: var(--steel); }

/* 内页区块留白 */
.isec { padding: 64px 0; }
.isec.tint {}

/* ==========================================================================
   首页 · Hero（保持已确认的文案与配图，版式同线上 849b115）
   ========================================================================== */
.hero { position: relative; overflow: hidden; }
.hero-particles { position: absolute; inset: 0; z-index: 0; pointer-events: none; }
.hero-grid-bg {
  position: absolute; inset: 0; z-index: 0;
  mask-image: radial-gradient(ellipse 75% 65% at 65% 30%, black, transparent);
  -webkit-mask-image: radial-gradient(ellipse 75% 65% at 65% 30%, black, transparent);
}
.hero-blob { position: absolute; border-radius: 50%; z-index: 0; pointer-events: none; }
.hero-inner { position: relative; z-index: 2; padding: 130px 0 64px; }
.hero-cols { display: grid; gap: 56px; align-items: center; }

.hero-tag {
  display: inline-flex; align-items: center; gap: 12px;
  border: 1px solid var(--line); border-radius: 16px; background: #fff;
  padding: 6px 16px 6px 8px; box-shadow: 0 0.2px 0.6px rgba(0, 0, 0, 0.028);
}
.hero-tag .dot { position: relative; width: 8px; height: 8px; }
.hero-tag .dot i { position: absolute; inset: 0; border-radius: 50%; }
.hero-tag .dot i:first-child { background: var(--azure); animation: ping-soft 2.2s cubic-bezier(0,0,.2,1) infinite; }
.hero-tag .dot i:last-child { background-image: var(--grad); }
.hero-tag .txt { font-family: var(--font-mono); font-size: 10.5px; letter-spacing: .24em; text-transform: uppercase; color: var(--steel); }

.hero h1 { margin-top: 32px; font-size: 42px; font-weight: 600; line-height: 1.14; letter-spacing: -.01em; }
.hero h1 .text-grad { background-size: 220% 220%; animation: gradient-x 6s ease-in-out infinite; }
.hero .lead { margin-top: 28px; max-width: 520px; font-size: 15px; line-height: 1.9; color: var(--steel); }
.hero-actions { margin-top: 40px; display: flex; flex-wrap: wrap; gap: 16px; }

/* 右侧视觉：科技配图 + 六边形动态画布 + HUD */
.hero-visual { position: relative; }
.hero-frame {
  position: relative; overflow: hidden;
  border: 1px solid var(--line); border-radius: 16px; background: #fff;
  box-shadow: 0 4px 16px rgba(28, 36, 48, 0.066);
}
.hero-frame > img.hero-img { width: 100%; aspect-ratio: 16/10; object-fit: cover; }
.hero-frame > canvas.hero-canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-frame .scanline {
  position: absolute; left: 0; width: 100%; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(20, 151, 236, .7), transparent);
}
.hud {
  position: absolute; display: flex; align-items: center; gap: 8px;
  border: 1px solid var(--line); border-radius: 6px;
  background: rgba(255, 255, 255, .85);
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
  padding: 6px 12px;
  font-family: var(--font-mono); font-size: 10px; letter-spacing: .12em; text-transform: uppercase;
  color: var(--steel);
}
.hud b { color: var(--cream); font-weight: 600; }
.hud svg { width: 12px; height: 12px; }
.hud.tl { position: absolute; left: 16px; top: 16px; color: var(--volt-strong); letter-spacing: .18em; animation: float-y 5s ease-in-out infinite; }
.hud.tl svg { color: var(--volt-strong); animation: pulse-soft 2s ease-in-out infinite; }
@keyframes pulse-soft { 0%, 100% { opacity: 1; } 50% { opacity: .4; } }
.hud.tr { right: 16px; top: 16px; animation: float-y-late 6.5s ease-in-out infinite; }
.hud.tr svg { color: var(--azure); }
.hud.br { right: 16px; bottom: 16px; gap: 12px; }
.hud.br > span { display: flex; align-items: center; gap: 6px; }
.hud.br .sep { width: 1px; height: 12px; background: var(--line); }
.hud.br svg.g-volt { color: var(--volt); }
.hud.br svg.g-cyan { color: var(--cyan-500); }
.corner { position: absolute; width: 20px; height: 20px; pointer-events: none; }
.corner.tl { left: -8px; top: -8px; border-left: 2px solid rgba(123, 92, 240, .7); border-top: 2px solid rgba(123, 92, 240, .7); }
.corner.br { right: -8px; bottom: -8px; border-right: 2px solid rgba(37, 195, 240, .7); border-bottom: 2px solid rgba(37, 195, 240, .7); }
.orb { position: absolute; border-radius: 50%; opacity: .7; pointer-events: none; }
.orb.o1 { left: -24px; top: 25%; width: 10px; height: 10px; background: linear-gradient(135deg, var(--volt), var(--azure)); animation: float-y 5s ease-in-out infinite; }
.orb.o2 { right: -20px; top: 50%; width: 8px; height: 8px; background: linear-gradient(135deg, var(--azure), var(--cyan-400)); animation: float-y-late 6.5s ease-in-out infinite; }

/* 数据条（已按要求：无顶部线条、无悬停渐变） */
.hero-stats {
  margin-top: 64px;
  display: grid; grid-template-columns: repeat(2, 1fr);
  border: 1px solid var(--line); border-radius: 16px;
  background: rgba(255, 255, 255, .8);
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
  box-shadow: 0 2.2px 11.2px rgba(28, 36, 48, 0.033);
  overflow: hidden;
}
.hero-stats .stat { padding: 24px; transition: background .5s; }
.hero-stats .stat:hover { background: #fff; }
.hero-stats .stat + .stat { border-left: 1px solid var(--line); }
.hero-stats .stat:nth-child(3) { border-left: none; border-top: 1px solid var(--line); }
.hero-stats .stat:nth-child(4) { border-top: 1px solid var(--line); }
.hero-stats .num { font-family: var(--font-mono); font-size: 34px; font-weight: 600; line-height: 1; color: #25c3f0; }
.hero-stats .num i { font-style: normal; margin-left: 4px; font-size: 15px; font-weight: 500; color: #25c3f0; }
.hero-stats .lbl { margin-top: 10px; display: flex; align-items: center; gap: 6px; font-size: 12.5px; line-height: 1.6; color: var(--steel); }
.hero-stats .lbl::before { content: ''; width: 4px; height: 4px; border-radius: 50%; background-image: var(--grad); animation: pulse-soft 2s ease-in-out infinite; flex-shrink: 0; }

/* ==========================================================================
   首页 · 痛点（sticky 左栏 + 列表行，1:1 复刻 849b115）
   ========================================================================== */
.pain-grid { display: grid; gap: 48px; }
.pain-intro h2 { margin-top: 20px; font-size: 30px; font-weight: 900; line-height: 1.25; }
.pain-intro p { margin-top: 24px; max-width: 340px; font-size: 14px; line-height: 1.9; color: var(--steel); }
.pain-intro .link-underline { margin-top: 32px; }
.pain-list { border-top: 1px solid var(--line); }
.pain-item {
  position: relative; display: grid; grid-template-columns: 64px 1fr; gap: 16px; align-items: start;
  border-bottom: 1px solid var(--line); padding: 28px 0;
  cursor: default; transition: background .5s;
}
.pain-item:hover { background: rgba(0, 0, 0, .02); }
.pain-item .no {
  font-family: var(--font-mono); font-size: 26px; font-weight: 500; line-height: 1;
  color: var(--dim); transition: color .5s;
}
.pain-item:hover .no { color: var(--volt); }
.pain-item h3 { font-size: 18px; font-weight: 700; line-height: 1.4; transition: transform .5s; }
.pain-item:hover h3 { transform: translateX(6px); }
.pain-item p { margin-top: 10px; max-width: 620px; font-size: 13.5px; line-height: 1.85; color: var(--steel); }
.pain-item .grow {
  position: absolute; left: 0; bottom: 0; height: 1px; width: 0;
  background: var(--volt); transition: width .7s;
}
.pain-item:hover .grow { width: 100%; }

/* ==========================================================================
   首页 · 产品体系（编辑风区块，1:1 复刻 849b115）
   ========================================================================== */
.prod-head { display: grid; gap: 32px; }
.prod-head .side p { max-width: 440px; font-size: 14px; line-height: 1.9; color: var(--steel); }
.prod-head .side .link-underline { margin-top: 20px; }
.prod-wrap {
  margin-top: 56px; overflow: hidden;
  border: 1px solid var(--line); border-radius: 16px; background: #fff;
  box-shadow: 0 2.2px 11.2px rgba(28, 36, 48, 0.028);
}
.prod-block { display: grid; gap: 32px; padding: 28px; transition: background .5s; }
.prod-block + .prod-block { border-top: 1px solid var(--line); }
.prod-block:hover { background: rgba(123, 92, 240, .02); }
.prod-meta .row { display: flex; align-items: center; gap: 16px; }
.prod-meta .row .code { font-family: var(--font-mono); font-size: 13px; font-weight: 500; letter-spacing: .15em; color: var(--volt); }
.prod-meta .row .ln { flex: 1; height: 1px; background: var(--line); }
.prod-meta .row .en { font-family: var(--font-mono); font-size: 10px; letter-spacing: .22em; text-transform: uppercase; color: var(--dim); }
.prod-meta h3 { margin-top: 20px; display: flex; align-items: center; gap: 12px; font-size: 24px; font-weight: 900; letter-spacing: -.01em; }
.prod-meta h3 svg { width: 20px; height: 20px; color: var(--dim); transition: color .5s; }
.prod-block:hover .prod-meta h3 svg { color: var(--volt); }
.prod-meta > p { margin-top: 12px; max-width: 320px; font-size: 13.5px; line-height: 1.85; color: var(--steel); }
.prod-mods { display: grid; gap: 12px; }
.mod {
  position: relative; display: flex; flex-direction: column;
  border: 1px solid var(--line); border-radius: 12px;
  background: rgba(244, 248, 253, .7); padding: 20px;
  transition: all .5s;
}
.mod:hover {
  transform: translateY(-4px); border-color: rgba(123, 92, 240, .4); background: #fff;
  box-shadow: 0 1.8px 8.4px rgba(123, 92, 240, 0.055);
}
.mod .code {
  align-self: flex-start; border-radius: 4px; padding: 2px 8px;
  background-image: var(--grad-soft);
  font-family: var(--font-mono); font-size: 10px; font-weight: 600; letter-spacing: .14em;
  color: var(--volt-strong); box-shadow: inset 0 0 0 1px rgba(123, 92, 240, .15);
}
.mod h4 { margin-top: 14px; font-size: 15px; font-weight: 700; line-height: 1.4; }
.mod p { margin-top: 8px; font-size: 12.5px; line-height: 1.8; color: var(--steel); }
.mod .dot {
  position: absolute; right: 16px; top: 16px; width: 6px; height: 6px; border-radius: 50%;
  background: rgba(123, 135, 152, .5); transition: all .5s; pointer-events: none;
}
.mod:hover .dot { background-image: var(--grad); }
.fig-note { margin-top: 24px; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; padding: 0 4px; }
.fig-note .fig { font-family: var(--font-mono); font-size: 10.5px; letter-spacing: .22em; text-transform: uppercase; color: var(--dim); }

/* ==========================================================================
   首页 · 解决方案（sticky 层叠卡片 + 跑马灯，1:1 复刻 849b115）
   ========================================================================== */
.sol-head { max-width: 760px; }
.sol-head .desc { margin-top: 24px; max-width: 560px; font-size: 14px; line-height: 1.9; color: var(--steel); }
.stack-zone { margin-top: 56px; }
.stack-card { position: sticky; margin-bottom: 24px; }
.stack-card article {
  overflow: hidden; border: 1px solid var(--line); border-radius: 16px;
  box-shadow: 0 -2.5px 12.3px rgba(28, 36, 48, 0.055);
}
.stack-inner { display: grid; gap: 32px; padding: 28px; }
.stack-idx { display: flex; align-items: baseline; gap: 16px; }
.stack-idx .no { font-family: var(--font-mono); font-size: 44px; font-weight: 600; line-height: 1; color: rgba(28, 36, 48, .10); }
.stack-idx .en { font-family: var(--font-mono); font-size: 10px; letter-spacing: .26em; text-transform: uppercase; color: var(--volt); }
.stack-card h3 { margin-top: 16px; font-size: 26px; font-weight: 900; letter-spacing: -.01em; }
.stack-card .desc { margin-top: 12px; max-width: 320px; font-size: 13.5px; line-height: 1.85; color: var(--steel); }
.stack-card .tags { margin-top: 24px; display: flex; flex-wrap: wrap; gap: 8px; }
.stack-points { border-left: 1px solid var(--line); padding-left: 24px; display: flex; flex-direction: column; gap: 16px; }
.stack-points li { display: flex; align-items: flex-start; gap: 12px; font-size: 14.5px; line-height: 1.6; color: rgba(28, 36, 48, .9); }
.stack-points li .ck {
  margin-top: 2px; display: grid; place-items: center; flex-shrink: 0;
  width: 18px; height: 18px; border-radius: 50%; background: rgba(123, 92, 240, .15);
}
.stack-points li .ck svg { width: 12px; height: 12px; color: var(--volt); }
.stack-kpi { border: 1px solid var(--line); border-radius: 12px; background: rgba(255, 255, 255, .7); padding: 16px; height: fit-content; }
.stack-kpi .t { font-family: var(--font-mono); font-size: 9.5px; letter-spacing: .22em; text-transform: uppercase; color: var(--dim); }
.stack-kpi .v { margin-top: 8px; font-size: 13px; font-weight: 600; line-height: 1.6; color: var(--volt); }
.sol-more { margin-top: 16px; display: flex; justify-content: center; }

/* 跑马灯 */
.marquee { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: #fff; padding: 20px 0; margin-top: 20px; }
.marquee .mask {
  position: relative; overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, black 8%, black 92%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, black 8%, black 92%, transparent);
}
.marquee-track { display: flex; width: max-content; align-items: center; gap: 40px; white-space: nowrap; padding: 0 20px; animation: marquee-x 30s linear infinite; }
.marquee-track .it { display: flex; align-items: center; gap: 40px; font-size: 15px; font-weight: 500; color: var(--steel); }
.marquee-track .it::after { content: ''; width: 6px; height: 6px; transform: rotate(45deg); background: rgba(123, 92, 240, .6); }
.marquee .note { margin-top: 12px; text-align: center; font-family: var(--font-mono); font-size: 10px; letter-spacing: .28em; text-transform: uppercase; color: var(--dim); }

/* ==========================================================================
   首页 · 专业服务（VSMA 图 + 步骤时间线 + 服务矩阵，1:1 复刻 849b115）
   ========================================================================== */
.vsma-grid { margin-top: 56px; display: grid; gap: 40px; }
.vsma-img { position: relative; }
.vsma-frame {
  position: relative; overflow: hidden;
  border: 1px solid var(--line); border-radius: 16px;
  box-shadow: 0 4px 16px rgba(28, 36, 48, 0.066);
}
.vsma-frame img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.vsma-frame .veil { position: absolute; inset: 0; background: linear-gradient(to top, rgba(255,255,255,.9), rgba(255,255,255,.2) 55%, transparent); }
.vsma-cap { position: absolute; left: 20px; right: 20px; bottom: 20px; }
.vsma-cap .k { display: flex; align-items: center; gap: 8px; font-family: var(--font-mono); font-size: 10px; letter-spacing: .24em; text-transform: uppercase; color: var(--volt); }
.vsma-cap .k svg { width: 14px; height: 14px; }
.vsma-cap .t { margin-top: 8px; font-size: 15px; font-weight: 600; line-height: 1.6; }
.vsma-cap .d { margin-top: 4px; font-size: 12.5px; line-height: 1.6; color: var(--steel); }
.vsma-img .tick { position: absolute; width: 20px; height: 20px; pointer-events: none; }
.vsma-img .tick.tl { left: -8px; top: -8px; border-left: 2px solid rgba(123, 92, 240, .7); border-top: 2px solid rgba(123, 92, 240, .7); }
.vsma-img .tick.br { right: -8px; bottom: -8px; border-right: 2px solid rgba(123, 92, 240, .7); border-bottom: 2px solid rgba(123, 92, 240, .7); }

.vsma-steps { position: relative; margin-left: 12px; border-left: 1px solid var(--line); padding-left: 32px; }
.vsma-step { position: relative; padding-bottom: 36px; }
.vsma-step:last-child { padding-bottom: 0; }
.vsma-step .pt {
  position: absolute; left: -41px; top: 0;
  display: grid; place-items: center; width: 24px; height: 24px;
  border: 1px solid rgba(123, 92, 240, .4); border-radius: 50%; background: #fff;
}
.vsma-step .pt i { width: 8px; height: 8px; border-radius: 50%; background: var(--volt); }
.vsma-step .no { font-family: var(--font-mono); font-size: 10.5px; letter-spacing: .26em; text-transform: uppercase; color: var(--volt); }
.vsma-step h3 { margin-top: 8px; font-size: 19px; font-weight: 700; }
.vsma-step p { margin-top: 6px; max-width: 480px; font-size: 13.5px; line-height: 1.85; color: var(--steel); }

.svc-matrix-zone { margin-top: 96px; }
.svc-matrix-head { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 16px; }
.svc-matrix-head h3 { font-size: 24px; font-weight: 900; letter-spacing: -.01em; }
.svc-matrix-head .mono { font-family: var(--font-mono); font-size: 10.5px; letter-spacing: .22em; text-transform: uppercase; color: var(--dim); }
.svc-matrix {
  margin-top: 32px; display: grid; gap: 1px; overflow: hidden;
  border: 1px solid var(--line); border-radius: 16px; background: var(--line);
}
.svc-cell { display: flex; flex-direction: column; height: 100%; background: var(--canvas); padding: 28px; transition: background .5s; }
.svc-cell:hover { background: #fff; }
.svc-cell .no { font-family: var(--font-mono); font-size: 13px; letter-spacing: .15em; color: var(--dim); transition: color .5s; }
.svc-cell:hover .no { color: var(--volt); }
.svc-cell h4 { margin-top: 16px; font-size: 18px; font-weight: 700; }
.svc-cell > p { margin-top: 10px; font-size: 13px; line-height: 1.85; color: var(--steel); }
.svc-cell ul { margin-top: 20px; border-top: 1px solid var(--line); padding-top: 16px; display: flex; flex-direction: column; gap: 8px; }
.svc-cell ul li { display: flex; align-items: center; gap: 8px; font-size: 12.5px; color: var(--steel); }
.svc-cell ul li::before { content: ''; width: 4px; height: 4px; transform: rotate(45deg); background: rgba(123, 92, 240, .7); flex-shrink: 0; }

.dims-box { margin-top: 64px; border: 1px solid var(--line); border-radius: 16px; background: rgba(244, 248, 253, .7); padding: 28px; }
.dims-box .head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; }
.dims-box .head h4 { font-size: 17px; font-weight: 700; }
.dims-box .head .mono { font-family: var(--font-mono); font-size: 10px; letter-spacing: .22em; text-transform: uppercase; color: var(--dim); }
.dims-grid { margin-top: 24px; display: grid; gap: 20px 40px; }
.dim-item { border-top: 1px solid var(--line); padding-top: 16px; }
.dim-item .k { font-family: var(--font-mono); font-size: 10px; letter-spacing: .2em; text-transform: uppercase; color: var(--volt); }
.dim-item .n { margin-top: 6px; font-size: 14.5px; font-weight: 600; }
.dim-item .d { margin-top: 4px; font-size: 12px; line-height: 1.75; color: var(--steel); }

/* ==========================================================================
   首页 · 关于我们（宣言 + 优势行 + 70/20/10，1:1 复刻 849b115）
   ========================================================================== */
.about-state { margin-top: 24px; max-width: 980px; font-size: 28px; font-weight: 900; line-height: 1.4; letter-spacing: -.01em; }
.why { margin-top: 64px; border-top: 1px solid var(--line); }
.why-row { display: grid; gap: 20px; border-bottom: 1px solid var(--line); padding: 36px 0; transition: background .5s; }
.why-row:hover { background: rgba(0, 0, 0, .015); }
.why-row .no {
  font-family: var(--font-mono); font-size: 38px; font-weight: 600; line-height: 1;
  color: rgba(28, 36, 48, .10); transition: color .5s;
}
.why-row:hover .no { color: rgba(123, 92, 240, .7); }
.why-row h3 { font-size: 21px; font-weight: 900; letter-spacing: -.01em; }
.why-row .desc { font-size: 14px; line-height: 1.9; color: var(--steel); }
.why-row .pts { margin-top: 16px; display: flex; flex-wrap: wrap; gap: 8px 24px; }
.why-row .pts span { display: flex; align-items: center; gap: 8px; font-size: 13px; color: rgba(28, 36, 48, .85); }
.why-row .pts span::before { content: ''; width: 12px; height: 4px; background: rgba(123, 92, 240, .7); flex-shrink: 0; }

.mix-card {
  margin-top: 64px; border: 1px solid var(--line); border-radius: 16px; background: #fff;
  padding: 28px; box-shadow: 0 2.2px 11.2px rgba(28, 36, 48, 0.028);
}
.mix-head { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 16px; }
.mix-head .mono { font-family: var(--font-mono); font-size: 11px; letter-spacing: .26em; text-transform: uppercase; color: var(--volt); }
.mix-head h3 { margin-top: 12px; font-size: 22px; font-weight: 900; letter-spacing: -.01em; }
.mix-head p { max-width: 380px; font-size: 13px; line-height: 1.85; color: var(--steel); }
.mix-bar { margin-top: 32px; display: flex; width: 100%; height: 56px; overflow: hidden; border: 1px solid var(--line); border-radius: 8px; }
.mix-bar .seg { position: relative; display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 700; transition: all .5s; }
.mix-bar .seg + .seg { border-left: 1px solid rgba(255, 255, 255, .6); }
.mix-bar .s1 { width: 70%; background: var(--volt); color: #fff; }
.mix-bar .s2 { width: 20%; background: rgba(123, 92, 240, .2); color: var(--volt-strong); }
.mix-bar .s3 { width: 10%; background: rgba(0, 0, 0, .05); color: var(--steel); font-size: 12px; }
.mix-legend { margin-top: 16px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.mix-legend div { display: flex; align-items: baseline; gap: 8px; }
.mix-legend b { font-size: 13px; font-weight: 600; }
.mix-legend span { font-size: 11px; color: var(--dim); }

/* ==========================================================================
   首页 · 预约咨询（1:1 复刻 849b115）
   ========================================================================== */
.contact { position: relative; overflow: hidden; border-top: 1px solid var(--line); }
.contact .grid-bg {
  position: absolute; inset: 0;
  mask-image: radial-gradient(ellipse 70% 70% at 50% 100%, black, transparent);
  -webkit-mask-image: radial-gradient(ellipse 70% 70% at 50% 100%, black, transparent);
}
.contact .blob1 { position: absolute; left: 50%; top: 0; transform: translateX(-50%); width: 720px; height: 420px; border-radius: 50%; background: rgba(123, 92, 240, .08); filter: blur(130px); }
.contact .blob2 { position: absolute; right: -96px; bottom: 0; width: 380px; height: 380px; border-radius: 50%; background: rgba(37, 195, 240, .10); filter: blur(120px); }
/* 左右内边距写长写：本类与 .container 挂在同一元素上，
   简写 padding 会把 .container 的 20px 左右留白清零，导致本区块比导航左移 20px。 */
.contact-grid { position: relative; display: grid; gap: 56px; padding-top: 80px; padding-bottom: 80px; }
.contact-info h2 { margin-top: 20px; font-size: 32px; font-weight: 900; line-height: 1.2; letter-spacing: -.01em; }
.contact-info > .sub { margin-top: 24px; max-width: 460px; font-size: 14.5px; line-height: 1.9; color: var(--steel); }
.contact-lines { margin-top: 40px; display: flex; flex-direction: column; gap: 20px; }
.contact-lines li { display: flex; align-items: center; gap: 16px; }
.contact-lines .ic {
  display: grid; place-items: center; flex-shrink: 0; width: 44px; height: 44px;
  border: 1px solid rgba(123, 92, 240, .2); border-radius: 12px; background: rgba(123, 92, 240, .07);
}
.contact-lines .ic svg { width: 18px; height: 18px; color: #4c7cf0;}
.contact-lines small { display: block; font-family: var(--font-mono); font-size: 10px; letter-spacing: .2em; text-transform: uppercase; color: var(--dim); }
.contact-lines .v { margin-top: 2px; font-size: 14.5px; font-weight: 500; color: rgba(28, 36, 48, .9); }
/* 商务邮箱为 mailto 链接，保持与其它联系方式一致的观感 */
a.v { display: inline-block; text-decoration: none; transition: color .2s; }
a.v:hover { color: #4c7cf0; }

.form {
  border: 1px solid var(--line); border-radius: 16px;
  background: rgba(255, 255, 255, .9);
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
  box-shadow: 0 4px 16px rgba(28, 36, 48, 0.044);
  padding: 28px;
}
.form .fhead { display: flex; align-items: center; justify-content: space-between; }
.form .fhead h3 { font-size: 18px; font-weight: 700; }
.form .fhead .mono { font-family: var(--font-mono); font-size: 10px; letter-spacing: .2em; text-transform: uppercase; color: var(--dim); }
.form .fields { margin-top: 24px; display: grid; gap: 16px; }
.field input, .field textarea, .field select {
  width: 100%; border: 1px solid var(--line); border-radius: 12px;
  background: rgba(244, 248, 253, .7); padding: 14px 16px;
  font-size: 14px; color: var(--cream); outline: none;
  transition: all .3s;
}
.field input::placeholder, .field textarea::placeholder { color: var(--dim); }
.field input:focus, .field textarea:focus, .field select:focus {
  border-color: rgba(123, 92, 240, .6); background: #fff;
  box-shadow: 0 0 0 3px rgba(123, 92, 240, 0.066);
}
.field textarea { resize: none; }
.form .submit {
  margin-top: 24px; width: 100%; display: flex; align-items: center; justify-content: center; gap: 8px;
  border-radius: 12px; padding: 16px;
  background-image: var(--grad); background-size: 220% 220%; animation: gradient-x 6s ease-in-out infinite;
  color: #fff; font-size: 15px; font-weight: 700; transition: box-shadow .3s;
}
.form .submit:hover { box-shadow: 0 2.2px 10.1px rgba(20, 151, 236, 0.248); }
.form .submit svg { width: 18px; height: 18px; }
.form .tip { margin-top: 14px; text-align: center; font-size: 11.5px; line-height: 1.6; color: var(--dim); }
.arr{ display: none;}
/* ==========================================================================
   页脚（1:1 复刻 849b115）
   ========================================================================== */
/* 以下 .footer 系列为旧版深色页脚样式。页脚已整体换成 .lx-footer（见文件末尾），
   此段已无对应 DOM，暂时保留以便回退。 */
.footer { border-top: 1px solid var(--footer-line); background: var(--cream, #1c2430); }
.footer .container { padding-top: 56px; padding-bottom: 40px; }
.footer .cols { display: grid; gap: 40px; }
/* 页脚品牌位文字承载位（对应需求：品牌位移除图片、改为企业名称双行文字） */
.footer .f-visual { width: 100%; max-width: 360px; }
/* 品牌位中文名称行（对应需求：品牌位企业名称双行文字） */
.footer .f-name { font-family: var(--font-sans); font-size: 17px; font-weight: 700; letter-spacing: .02em; line-height: 1.4; color: var(--footer-brand-name); white-space: nowrap; text-align: left; }
/* 品牌位英文标识行（对应需求：品牌位企业名称双行文字） */
.footer .f-en { font-family: var(--font-mono); font-size: 11px; font-weight: 400; letter-spacing: .24em; text-transform: uppercase; line-height: 1.4; margin-top: 8px; color: var(--footer-text); white-space: nowrap; text-align: left; }
.footer .slogan { margin-top: 30px; max-width: 360px; font-size: 13px; line-height: 1.9; color: var(--footer-text); }
.footer .h { font-family: var(--font-mono); font-size: 12px; letter-spacing: .24em; text-transform: uppercase; color: var(--dim); }
.footer ul { margin-top: 16px; display: flex; flex-direction: column; gap: 1px; }
.footer ul.twocol { display: grid; grid-template-columns: 1fr 1fr; gap: 5px 16px; }
.footer ul a { font-size: 13.5px; color: var(--footer-text); transition: color .3s; }
.footer ul.twocol a { font-size: 13px; }
.footer ul a:hover { color: var(--footer-hover); }
.footer .base {
  margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--footer-line);
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px;
}
.footer .base p { font-size: 12px; color: var(--dim); }
.footer .base .en { font-family: var(--font-mono); font-size: 10px; letter-spacing: .24em; text-transform: uppercase; }

/* ==========================================================================
   内页 · 顶部横幅（版式同 849b115，叠加科技高清背景图）
   ========================================================================== */
.page-hero { position: relative; overflow: hidden; border-bottom: 1px solid var(--line); isolation: isolate; color: #fff; }
.ph-bg {
  position: absolute; inset: 0; z-index: -3;
  background-size: cover; background-position: center 30%;
  animation: heroZoom 26s ease-in-out infinite alternate;
}
@keyframes heroZoom { from { transform: scale(1.02); } to { transform: scale(1.1); } }
.page-hero .ph-shade {
  position: absolute; inset: 0; z-index: -2;
  background: linear-gradient(100deg, rgba(8, 32, 52, .88) 0%, rgba(10, 52, 84, .68) 46%, rgba(12, 62, 96, .5) 100%);
}
.page-hero .ph-shade::after {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse 70% 90% at 50% 110%, rgba(37, 195, 240, .14), transparent 60%);
}
.page-hero .ph-grid {
  position: absolute; inset: 0; z-index: -1;
  background-image:
    linear-gradient(rgba(255, 255, 255, .05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .05) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 70% 80% at 50% 0%, black, transparent);
  -webkit-mask-image: radial-gradient(ellipse 70% 80% at 50% 0%, black, transparent);
}
.page-hero canvas.ph-particles { position: absolute; inset: 0; z-index: -1; width: 100%; height: 100%; }
.ph-inner { position: relative; padding: 132px 0 56px; text-align: center; }
.ph-crumb { display: flex; align-items: center; justify-content: center; gap: 6px; margin-bottom: 28px; font-size: 12.5px; color: rgba(255, 255, 255, .55); }
.ph-crumb a { transition: color .3s; }
.ph-crumb a:hover { color: #fff; }
.ph-crumb svg { width: 12px; height: 12px; }
.ph-crumb .cur { color: rgba(255, 255, 255, .85); }
.ph-eyebrow { font-family: var(--font-mono); font-size: 11px; letter-spacing: .32em; text-transform: uppercase; color: #8ed4f7; }
.ph-title { margin: 16px auto 0;  font-size: 34px; font-weight: 900; line-height: 1.2; letter-spacing: -.01em; color: #fff; }
.ph-title .text-grad { background: linear-gradient(100deg, #8ecdf7 5%, #5cc8f3 50%, #b9a6fb 95%); -webkit-background-clip: text; background-clip: text; }
.ph-sub { margin: 20px auto 0; max-width: 640px; font-size: 14.5px; line-height: 1.9; color: rgba(255, 255, 255, .78); }
.ph-tags { margin-top: 24px; display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; }
.ph-tag {
  border: 1px solid rgba(255, 255, 255, .22); border-radius: 16px;
  background: rgba(255, 255, 255, .10);
  -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
  padding: 6px 16px; font-size: 12px; color: rgba(255, 255, 255, .88);
}
/* 详情页头部变体 */
.ph-badge-row { display: flex; align-items: center; justify-content: center; gap: 12px; }
.ph-cat {
  border-radius: 16px; padding: 6px 16px; font-size: 12px; font-weight: 600;
  color: #d9ecfd; background: rgba(123, 92, 240, .28);
  box-shadow: inset 0 0 0 1px rgba(125, 200, 245, .35);
  -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
}
.ph-actions { margin-top: 36px; display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 16px; }
.ph-actions .btn-ghost { background: rgba(255, 255, 255, .94); }

/* ==========================================================================
   产品汇总页（1:1 复刻 849b115）
   ========================================================================== */
.group-sec { position: relative; }
.group-sec + .group-sec { margin-top: 80px; }
.group-head { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 16px; border-bottom: 1px solid var(--line); padding-bottom: 24px; }
.group-head .left { display: flex; align-items: center; gap: 16px; }
.group-head .code { font-family: var(--font-mono); font-size: 11px; letter-spacing: .28em; color: var(--dim); }
.group-head h2 { margin-top: 0; font-size: 24px; font-weight: 900; letter-spacing: -.01em; }
/* 分组描述改为跟在标题下方（原为右侧 .group-head > p） */
.group-head .left p { margin-top: 8px; font-size: 13px; line-height: 1.7; color: var(--steel); }
.group-head > p { max-width: 420px; font-size: 13px; line-height: 1.7; color: var(--steel); }
.pcards { margin-top: 32px; display: grid; gap: 20px; }
.pcard {
  position: relative; display: flex; flex-direction: column; height: 100%; overflow: hidden;
  border: 1px solid var(--line); border-radius: 16px; background: #fff; padding: 24px;
  transition: all .5s;
}
.pcard::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background-image: var(--grad); transform: scaleX(0); transform-origin: left; transition: transform .5s;
}
.pcard:hover { transform: translateY(-6px); box-shadow: 0 3.6px 14px rgba(28, 36, 48, 0.066); }
.pcard:hover::before { transform: scaleX(1); }
.pcard .top { display: flex; align-items: flex-start; justify-content: space-between; }
.pcard .arr { width: 20px; height: 20px; color: var(--dim); opacity: 0; transition: all .3s; }
.pcard:hover .arr { opacity: 1; color: var(--azure); transform: translate(2px, -2px); }
.pcard h3 { margin-top: 20px; font-size: 17px; font-weight: 700; letter-spacing: -.01em; transition: color .3s; }
.pcard:hover h3 { color: var(--volt-strong); }
.pcard .sum { margin-top: 10px; flex: 1; font-size: 13px; line-height: 1.85; color: var(--steel); }
.pcard .feats { margin-top: 16px; display: flex; flex-wrap: wrap; gap: 6px; }
.feat-chip {
  border-radius: 6px; padding: 4px 10px; font-size: 11px; font-weight: 500;
  background-image: var(--grad-soft); color: var(--azure-strong);
}
.pcard .foot { margin-top: 20px; border-top: 1px solid var(--line); padding-top: 16px; }
.pcard .foot .link-grad { font-size: 12.5px; }

/* ==========================================================================
   解决方案汇总页（1:1 复刻 849b115）
   ========================================================================== */
.scards { display: grid; gap: 24px; }
.scard {
  position: relative; display: flex; flex-direction: column; height: 100%; overflow: hidden;
  border: 1px solid var(--line); border-radius: 16px; background: #fff; transition: all .5s;
}
.scard:hover { transform: translateY(-6px); box-shadow: 0 4px 16px rgba(28, 36, 48, 0.072); }
.scard .headband { position: relative; height: 120px; overflow: hidden; background-image: var(--grad-soft); }
.scard .bignum {
  position: absolute; right: -16px; top: -32px; user-select: none;
  font-family: var(--font-mono); font-size: 110px; font-weight: 900; line-height: 1;
  color: rgba(28, 36, 48, .05);
}
.scard .bandline {
  position: absolute; left: 0; right: 0; bottom: 0; height: 2px;
  background-image: var(--grad); transform: scaleX(0); transform-origin: left; transition: transform .5s;
}
.scard:hover .bandline { transform: scaleX(1); }
.scard .band-in { position: absolute; left: 28px; top: 50%; transform: translateY(-50%); display: flex; align-items: center; gap: 16px; }
.scard .band-in .icon-tile { width: 56px; height: 56px; border-radius: 16px; box-shadow: 0 1.4px 6.7px rgba(20, 151, 236, 0.22); transition: transform .5s; }
.scard .band-in .icon-tile svg { width: 24px; height: 24px; }
.scard:hover .band-in .icon-tile { transform: scale(1.1) rotate(-3deg); }
.scard .band-in h3 { font-size: 19px; font-weight: 900; letter-spacing: -.01em; }
.scard .band-in .cat { margin-top: 4px; font-family: var(--font-mono); font-size: 12px; letter-spacing: .1em; text-transform: uppercase; color: var(--dim); }
.scard > .arr { position: absolute; right: 24px; top: 24px; width: 20px; height: 20px; color: var(--dim); opacity: 0; transition: all .3s; }
.scard:hover > .arr { opacity: 1; color: var(--azure); }
.scard .body { display: flex; flex: 1; flex-direction: column; padding: 28px; }
.scard .sum { font-size: 13.5px; line-height: 1.85; color: var(--steel); }
.scard .feats { margin-top: 16px; display: flex; flex-wrap: wrap; gap: 6px; }
.scard .metrics-wrap { margin-top: 20px; flex: 1; display: flex; align-items: flex-end; }
.scard .metrics { width: 100%; display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; border-radius: 12px; background: rgba(244, 248, 253, .7); padding: 16px; }
.metric .v { font-family: var(--font-mono); font-size: 18px; font-weight: 900; line-height: 1; }
.metric .v .gv { background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent; }
.metric .v .gs { font-size: .5em; font-weight: 600; }
.metric .l { margin-top: 6px; display: flex; align-items: center; gap: 4px; font-size: 10.5px; line-height: 1.4; color: var(--dim); }
.metric .l svg { width: 12px; height: 12px; flex-shrink: 0; color: rgba(20, 151, 236, .7); }
.scard .foot { margin-top: 20px; display: flex; align-items: center; gap: 6px; border-top: 1px solid var(--line); padding-top: 16px; font-size: 12.5px; font-weight: 600; }
.scard .foot em { font-style: normal; background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent; }
.scard .foot svg { width: 14px; height: 14px; color: var(--azure); transition: transform .3s; }
.scard:hover .foot svg { transform: translateX(4px); }

/* 配套服务 */
.supserv { display: grid; gap: 20px; border: 1px solid var(--line); border-radius: 16px; background: #fff; padding: 32px; }
.supserv .intro .mono { font-family: var(--font-mono); font-size: 11px; letter-spacing: .28em; text-transform: uppercase; color: var(--azure); }
.supserv .intro h3 { margin-top: 8px; font-size: 22px; font-weight: 900; letter-spacing: -.01em; }
.supserv .intro p { margin-top: 8px; max-width: 240px; font-size: 12.5px; line-height: 1.6; color: var(--steel); }
.sup-card {
  display: flex; flex-direction: column; height: 100%;
  border: 1px solid var(--line); border-radius: 16px; background: rgba(244, 248, 253, .6); padding: 24px;
  transition: all .5s;
}
.sup-card:hover { background: #fff; box-shadow: 0 2.5px 10.1px rgba(28, 36, 48, 0.055); }
.sup-card .icon-tile { width: 40px; height: 40px; border-radius: 12px; }
.sup-card .icon-tile svg { width: 18px; height: 18px; }
.sup-card h4 { margin-top: 16px; font-size: 15.5px; font-weight: 700; }
.sup-card p { margin-top: 8px; flex: 1; font-size: 12.5px; line-height: 1.8; color: var(--steel); }
.sup-card .go { margin-top: 16px; display: inline-flex; align-items: center; gap: 4px; font-size: 12px; font-weight: 600; color: var(--azure); }
.sup-card .go svg { width: 12px; height: 12px; transition: transform .3s; }
.sup-card:hover .go svg { transform: translateX(4px); }

/* ==========================================================================
   详情页（产品 / 方案共用，1:1 复刻 849b115）
   ========================================================================== */
.pos-box {
  position: relative; border-radius: 16px; background-image: var(--grad-soft);
  box-shadow: inset 0 0 0 1px rgba(123, 92, 240, .1);
  padding: 48px 32px; text-align: center;
}
.pos-box > svg { width: 28px; height: 28px; margin: 0 auto; color: rgba(123, 92, 240, .5); }
.pos-box p { margin: 20px auto 0; max-width: 760px; font-size: 18px; font-weight: 700; line-height: 1.9; color: var(--cream); }

.hl-grid { margin-top: 48px; display: grid; gap: 20px; }
.hl-card {
  height: 100%; border: 1px solid var(--line); border-radius: 16px; background: #fff; padding: 28px;
  transition: all .5s;
}
.hl-card:hover { transform: translateY(-4px); background: #fff; box-shadow: 0 3.2px 12.3px rgba(28, 36, 48, 0.055); }
.hl-card h4 { margin-top: 20px; font-size: 16.5px; font-weight: 700; }
.hl-card p { margin-top: 10px; font-size: 13px; line-height: 1.85; color: var(--steel); }

.feat-grid { margin: 48px auto 0;  display: grid; gap: 16px 40px; }
.feat-item {
  display: flex; align-items: flex-start; gap: 12px;
  border: 1px solid var(--line); border-radius: 12px; background: #fff; padding: 16px 20px;
  transition: all .3s;
}
.feat-item:hover { border-color: rgba(20, 151, 236, .4); box-shadow: 0 1.4px 6.7px rgba(20, 151, 236, 0.055); }
.feat-item svg { margin-top: 2px; width: 18px; height: 18px; flex-shrink: 0; color: var(--azure); }
.feat-item span { font-size: 13.5px; line-height: 1.6; color: var(--cream); }

.scene-grid { margin-top: 48px; display: grid; gap: 20px; }
.scene-grid.has-img { grid-template-columns: repeat(2, 1fr); gap: 24px; }
.scene-card {
  overflow: hidden; display: flex; flex-direction: column;
  border: 1px solid var(--line); border-radius: 16px; background: #fff;
  transition: all .5s;
}
.scene-card:hover { transform: translateY(-4px); box-shadow: 0 3.2px 12.3px rgba(28, 36, 48, 0.066); border-color: rgba(123, 92, 240, .3); }
.scene-img { position: relative; overflow: hidden; }
.scene-img img { width: 100%; aspect-ratio: 16/8; object-fit: cover; transition: transform .8s cubic-bezier(.22, 1, .36, 1); }
.scene-card:hover .scene-img img { transform: scale(1.05); }
.scene-num {
  position: absolute; left: 16px; bottom: 16px;
  font-family: var(--font-mono); font-size: 12px; font-weight: 700; letter-spacing: .1em;
  color: #fff; background: rgba(10, 40, 66, .55); border: 1px solid rgba(255,255,255,.25);
  -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
  border-radius: 6px; padding: 4px 10px;
}
.scene-body { padding: 20px 24px 24px; }
.scene-body p { font-size: 14.5px; font-weight: 500; line-height: 1.7; color: var(--cream); }

.arch-zone { position: relative; margin-top: 48px; display: grid; gap: 16px; }
.arch-card {
  position: relative; display: flex; flex-direction: column; align-items: center; height: 100%;
  border: 1px solid var(--line); border-radius: 16px; background: #fff; padding: 32px 20px; text-align: center;
  transition: all .5s;
}
.arch-card:hover { transform: translateY(-4px); border-color: rgba(123, 92, 240, .3); box-shadow: 0 2.9px 11.2px rgba(123, 92, 240, 0.066); }
/* 架构卡片：原先在卡片上沿 -12px 处悬浮一枚渐变编号徽章（.arch-card .badge，01~04）。
   按需求整块移除，卡片只保留「图标 + 标题 + 说明」三级信息。
   图标改为「浅底 + 品牌蓝图标」：底色仍用 --grad-soft（三色 10% 透明度的极浅底），
   前景由品牌紫 --volt-strong 换成品牌蓝 --azure，描边同步由紫调 rgba(123,92,240) 改为蓝调。 */
.arch-card .ico {
  display: grid; place-items: center; width: 56px; height: 56px; border-radius: 16px;
  background-image: var(--grad-soft); color: var(--azure);
  box-shadow: inset 0 0 0 1px rgba(20, 151, 236, .18);
  transition: transform .5s;
}
.arch-card:hover .ico { transform: scale(1.1); }
.arch-card .ico svg { width: 24px; height: 24px; }
.arch-card h4 { margin-top: 16px; font-size: 15px; font-weight: 700; }
.arch-card p { margin-top: 6px; font-size: 12px; line-height: 1.6; color: var(--steel); }
.arch-line { display: none; }

.path { margin: 48px auto 0;  }
.path-item { position: relative; display: flex; gap: 24px; padding-bottom: 32px; }
.path-item:last-child { padding-bottom: 0; }
.path-item .rail {
  position: absolute; left: 21px; top: 48px; width: 1px; height: calc(100% - 44px);
  background: linear-gradient(to bottom, rgba(123,92,240,.4), rgba(46,124,246,.4), rgba(34,211,238,.4));
}
.path-item .num {
  display: grid; place-items: center; flex-shrink: 0; width: 44px; height: 44px; border-radius: 50%;
  background-image: var(--grad); color: #fff;
  font-family: var(--font-mono); font-size: 13px; font-weight: 700;
  box-shadow: 0 1.1px 5px rgba(20, 151, 236, 0.193);
}
.path-item .card {
  flex: 1; border: 1px solid var(--line); border-radius: 16px; background: #fff; padding: 16px 24px;
  transition: box-shadow .3s;
}
.path-item .card:hover { box-shadow: 0 1.8px 7.8px rgba(28, 36, 48, 0.044); }
.path-item h4 { font-size: 15px; font-weight: 700; }
.path-item p { margin-top: 6px; font-size: 13px; line-height: 1.6; color: var(--steel); }

.bene-grid { margin: 48px auto 0;  display: grid; gap: 20px; }
.bene-card {
  height: 100%; border: 1px solid var(--line); border-radius: 16px; background: #fff; padding: 24px;
  transition: all .5s;
}
.bene-card:hover { transform: translateY(-4px); box-shadow: 0 2.9px 11.2px rgba(28, 36, 48, 0.055); }
.bene-card .bi {
  display: grid; place-items: center; width: 36px; height: 36px; border-radius: 8px;
  background-image: var(--grad-soft); color: var(--volt-strong);
  box-shadow: inset 0 0 0 1px rgba(123, 92, 240, .15);
}
.bene-card .bi svg { width: 16px; height: 16px; }
.bene-card p { margin-top: 16px; font-size: 13.5px; line-height: 1.85; color: var(--cream); }

.spec-wrap { margin: 48px auto 0; overflow: hidden; border: 1px solid var(--line); border-radius: 16px; background: #fff; }
.spec-row { display: grid; grid-template-columns: 130px 1fr; gap: 16px; padding: 16px 24px; }
.spec-row:nth-child(odd) { background: rgba(244, 248, 253, .6); }
.spec-row .k { font-size: 13px; font-weight: 600; color: var(--cream); }
.spec-row .v { font-size: 13px; line-height: 1.6; color: var(--steel); }

/* 交付内容卡片：原为「内容自身宽度 + justify-content:center」，4 张卡片总宽小于 .container，
   两侧留出空白。改为等分栅格后每张卡片均分容器宽度，铺满整行且左右无空隙。
   移动端 2 列（4 张 = 2 行），≥1024px 4 列（4 张 = 1 行），各断点都是整数行、不留半行。
   列宽用 minmax(0,1fr)：卡片内含 SVG 与长英文串，纯 1fr 会被内容撑破。 */
.dlv-chips { margin: 48px auto 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.dlv-chip {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px; text-align: center;
  border: 1px solid var(--line); border-radius: 16px; background: #fff; padding: 10px 20px;
  font-size: 14px; font-weight: 500; color: var(--cream); transition: all .3s;
}
.dlv-chip:hover { border-color: rgba(20, 151, 236, .4); box-shadow: 0 1.4px 5.6px rgba(20, 151, 236, 0.066); }
.dlv-chip svg { width: 14px; height: 14px; color: var(--azure); }

/* 客户实践滑动卡（保留已确认的滑动交互） */
.prac-head { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 24px; max-width: none; text-align: left; margin: 0; }
.prac-hint { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; color: var(--dim); }
.prac-hint svg { width: 16px; height: 16px; }
.prac-wrap { margin-top: 40px; }
.prac-track {
  display: flex; gap: 20px; overflow-x: auto; scroll-snap-type: x mandatory;
  padding: 4px 4px 20px; cursor: grab; scrollbar-width: none;
}
.prac-track::-webkit-scrollbar { display: none; }
.prac-track.grabbing { cursor: grabbing; }
.prac-card {
  position: relative; scroll-snap-align: start; flex: 0 0 min(400px, 86vw);
  display: flex; flex-direction: column; overflow: hidden;
  border: 1px solid var(--line); border-radius: 16px; background: #fff; padding: 30px 30px 26px;
  transition: all .45s;
}
.prac-card::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px;
  background-image: var(--grad); opacity: 0; transition: opacity .4s;
}
.prac-card:hover { box-shadow: 0 3.6px 13.4px rgba(28, 36, 48, 0.066); border-color: rgba(123, 92, 240, .3); transform: translateY(-3px); }
.prac-card:hover::before { opacity: 1; }
.prac-tag {
  align-self: flex-start; display: inline-flex; align-items: center; gap: 6px;
  border-radius: 16px; padding: 5px 14px; font-size: 11.5px; font-weight: 600;
  background-image: var(--grad-soft); color: var(--volt-strong);
  box-shadow: inset 0 0 0 1px rgba(123, 92, 240, .18);
}
.prac-tag svg { width: 13px; height: 13px; }
.prac-quote { margin-top: 18px; flex: 1; font-size: 14px; line-height: 1.95; color: var(--steel); }
.prac-metrics { margin-top: 22px; display: flex; gap: 32px; border-top: 1px dashed var(--line); padding-top: 18px; }
.prac-metric b { font-family: var(--font-mono); font-size: 22px; font-weight: 900; background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent; }
.prac-metric span { display: block; margin-top: 5px; font-size: 11px; color: var(--dim); }
.prac-person { margin-top: 20px; display: flex; align-items: center; gap: 12px; }
.prac-ava {
  display: grid; place-items: center; width: 40px; height: 40px; border-radius: 50%; flex-shrink: 0;
  background-image: var(--grad); color: #fff; font-size: 14px; font-weight: 700;
  box-shadow: 0 1.1px 4.5px rgba(20, 151, 236, 0.193); text-align: center; line-height: 40px; color: #fff!important;
}
.prac-person b { display: block; font-size: 13.5px; }
.prac-person span { display: block; margin-top: 2px; font-size: 11.5px; color: var(--dim); }
.prac-nav { margin-top: 8px; display: flex; align-items: center; gap: 16px; }
.prac-btn {
  display: grid; place-items: center; width: 40px; height: 40px; border-radius: 50%;
  border: 1px solid var(--line); background: #fff; color: var(--steel); transition: all .3s;
}
.prac-btn:hover { border-color: rgba(123, 92, 240, .5); color: var(--volt-strong); box-shadow: 0 1.4px 5.6px rgba(123, 92, 240, 0.083); }
.prac-btn svg { width: 16px; height: 16px; }
.prac-bar { position: relative; flex: 1; height: 3px; border-radius: 16px; background: rgba(28, 36, 48, .08); overflow: hidden; }
.prac-bar i { position: absolute; top: 0; height: 100%; width: 20%; border-radius: 16px; background-image: var(--grad); transition: left .2s, width .2s; }

/* FAQ */
.faq-list { margin: 48px auto 0;  display: flex; flex-direction: column; gap: 12px; }
.faq-item { overflow: hidden; border: 1px solid var(--line); border-radius: 16px; background: #fff; transition: all .3s; }
.faq-item.open { border-color: rgba(123, 92, 240, .3); box-shadow: 0 2.2px 9px rgba(123, 92, 240, 0.055); }
.faq-q { display: flex; width: 100%; align-items: center; justify-content: space-between; gap: 16px; padding: 20px 24px; text-align: left; }
.faq-q span:first-child { font-size: 14.5px; font-weight: 700; color: var(--cream); }
.faq-q .fi {
  display: grid; place-items: center; flex-shrink: 0; width: 28px; height: 28px; border-radius: 50%;
  background: var(--canvas); color: var(--steel); transition: all .3s;
}
.faq-q .fi svg { width: 14px; height: 14px; }
.faq-item.open .fi { background-image: var(--grad); color: #fff; }
.faq-item .fi .ico-minus { display: none; }
.faq-item.open .fi .ico-minus { display: block; }
.faq-item.open .fi .ico-plus { display: none; }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .5s; }
.faq-a p { padding: 0 24px 20px; font-size: 13.5px; line-height: 1.9; color: var(--steel); }

/* 相关推荐 */
.rel-grid { margin-top: 48px; display: grid; gap: 20px; }
.rel-card {
  display: flex; flex-direction: column; height: 100%;
  border: 1px solid var(--line); border-radius: 16px; background: #fff; padding: 24px;
  transition: all .5s;
}
.rel-card:hover { transform: translateY(-4px); box-shadow: 0 3.2px 12.3px rgba(28, 36, 48, 0.066); }
.rel-card .top { display: flex; align-items: center; justify-content: space-between; }
.rel-card .top svg.arr { width: 16px; height: 16px; color: var(--dim); transition: color .3s; }
.rel-card:hover .top svg.arr { color: var(--azure); }
.rel-card h4 { margin-top: 16px; font-size: 15.5px; font-weight: 700; transition: color .3s; }
.rel-card:hover h4 { color: var(--volt-strong); }
.rel-card p {
  margin-top: 8px; flex: 1; font-size: 12.5px; line-height: 1.6; color: var(--steel);
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}

/* ==========================================================================
   专业服务页（1:1 复刻 849b115）
   ========================================================================== */
.vsma5 { border: 1px solid var(--line); border-radius: 16px; background: #fff; padding: 32px; }
.vsma5 .head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; }
.vsma5 .head h3 { font-size: 18px; font-weight: 900; }
.vsma5 .head .mono { font-family: var(--font-mono); font-size: 10.5px; letter-spacing: .24em; text-transform: uppercase; color: var(--dim); }
.vsma5 .grid { margin-top: 32px; display: grid; gap: 16px; }
.v5cell { position: relative; }
.v5cell .card {
  height: 100%; border: 1px solid var(--line); border-radius: 16px; background: rgba(244, 248, 253, .6); padding: 20px;
  transition: all .5s;
}
.v5cell .card:hover { transform: translateY(-4px); background: #fff; box-shadow: 0 2.5px 10.1px rgba(28, 36, 48, 0.055); }
.v5cell .no { font-family: var(--font-mono); font-size: 10px; font-weight: 700; letter-spacing: .18em; color: var(--azure); }
.v5cell h4 { margin-top: 10px; font-size: 15px; font-weight: 700; line-height: 1.4; }
.v5cell p { margin-top: 8px; font-size: 12px; line-height: 1.8; color: var(--steel); }
.v5cell .conn { display: none; }

.mx-grid { margin-top: 56px; display: grid; gap: 20px; }
.mx-card {
  display: flex; gap: 24px; height: 100%;
  border: 1px solid var(--line); border-radius: 16px; background: #fff; padding: 28px;
  transition: all .5s;
}
.mx-card:hover { transform: translateY(-4px); box-shadow: 0 3.6px 14px rgba(28, 36, 48, 0.061); }
.mx-card .side { display: flex; flex-direction: column; align-items: center; gap: 12px; }
.mx-card .side .no { font-family: var(--font-mono); font-size: 22px; font-weight: 900; line-height: 1; color: rgba(28, 36, 48, .14); }
.mx-card .main { flex: 1; }
.mx-card h3 { font-size: 18px; font-weight: 900; letter-spacing: -.01em; }
.mx-card > .main > p { margin-top: 10px; font-size: 13px; line-height: 1.85; color: var(--steel); }
.mx-card ul { margin-top: 16px; display: flex; flex-direction: column; gap: 8px; }
.mx-card ul li { display: flex; align-items: center; gap: 8px; font-size: 12.5px; color: var(--cream); }
.mx-card ul li svg { width: 14px; height: 14px; flex-shrink: 0; color: var(--azure); }

.ops-grid { margin-top: 56px; display: grid; gap: 20px; }
.ops-card {
  height: 100%; border: 1px solid var(--line); border-radius: 16px; background: #fff; padding: 28px;
  transition: all .5s;
}
.ops-card:hover { transform: translateY(-4px); box-shadow: 0 3.2px 12.3px rgba(28, 36, 48, 0.055); }
.ops-card h3 { margin-top: 20px; font-size: 17px; font-weight: 900; }
.ops-card > p { margin-top: 10px; font-size: 13px; line-height: 1.85; color: var(--steel); }
.ops-card .pts { margin-top: 16px; display: flex; flex-wrap: wrap; gap: 6px; }

/* 五维度（渐变描边版，同 849b115） */
.dims-grad {
  overflow: hidden; border-radius: 16px; padding: 1px;
  background-image: var(--grad); background-size: 220% 220%; animation: gradient-x 6s ease-in-out infinite;
}
.dims-grad .inner { display: grid; gap: 1px; overflow: hidden; border-radius: 16px; background: var(--line); }
.dims-grad .cell { background: #fff; padding: 32px 24px; transition: background .5s; }
.dims-grad .cell:hover { background-image: var(--grad-soft); }
.dims-grad .k { font-family: var(--font-mono); font-size: 10px; font-weight: 700; letter-spacing: .2em; text-transform: uppercase; color: var(--azure); }
.dims-grad h4 { margin-top: 10px; font-size: 16px; font-weight: 900; }
.dims-grad p { margin-top: 8px; font-size: 12px; line-height: 1.8; color: var(--steel); }

/* ==========================================================================
   关于我们页（单页长版；发展历程重排版）
   ========================================================================== */
.profile-grid { display: grid; gap: 40px; align-items: start; }
.profile-card { border: 1px solid var(--line); border-radius: 16px; background: #fff; padding: 32px; box-shadow: 0 2.2px 11.2px rgba(28, 36, 48, 0.028); }
.profile-card h2 { font-size: 24px; font-weight: 900; letter-spacing: -.01em; }
.profile-card > p { margin-top: 16px; font-size: 14.5px; line-height: 2; color: var(--steel); }
.profile-card > p:first-of-type { margin-top: 24px; }
.profile-stats { margin-top: 32px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; overflow: hidden; border-radius: 16px; background: var(--line); }
.profile-stats .cell { background: rgba(244, 248, 253, .7); padding: 24px 20px; text-align: center; }
.profile-stats .num { font-family: var(--font-mono); font-size: 26px; font-weight: 900; }
.profile-stats .num .gv { background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent; }
.profile-stats .num .gs { font-size: 14px; }
.profile-stats .lbl { margin-top: 8px; font-size: 11.5px; color: var(--steel); }
.profile-img { position: relative; }
.profile-img img { width: 100%; aspect-ratio: 4/3.4; object-fit: cover; border-radius: 16px; border: 1px solid var(--line); box-shadow: 0 4px 16px rgba(28, 36, 48, 0.066); }
.pf-badge {
  position: absolute; top: 20px; right: 20px;
  border-radius: 16px; padding: 6px 14px;
  background: rgba(255, 255, 255, .9); -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
  font-family: var(--font-mono); font-size: 10px; letter-spacing: .24em; color: var(--volt-strong);
  box-shadow: 0 1.4px 5.6px rgba(28, 36, 48, 0.066);
}
.pf-cap {
  position: absolute; left: 20px; right: 20px; bottom: 20px;
  border: 1px solid rgba(255, 255, 255, .5); border-radius: 14px;
  background: rgba(255, 255, 255, .82); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  padding: 14px 18px;
}
.pf-cap b { font-size: 14px; font-weight: 700; }
.pf-cap p { margin-top: 2px; font-size: 12px; color: var(--steel); }

/* 发展历程 —— 重排：渐变轨道 + 大年份 + 悬浮卡片 */
.tl { position: relative; margin: 56px auto 0; }
.tl::before {
  content: ''; position: absolute; left: 11px; top: 10px; bottom: 10px; width: 2px; border-radius: 2px;
  background: linear-gradient(180deg, var(--volt), var(--azure) 55%, var(--cyan));
  opacity: .45;
}
.tl-item { position: relative; padding: 0 0 20px 44px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-dot {
  position: absolute; left: 0; top: 4px;
  display: grid; place-items: center; width: 24px; height: 24px; border-radius: 50%;
  background: #fff; border: 1px solid rgba(123, 92, 240, .4);
  box-shadow: 0 0.7px 3.9px rgba(123, 92, 240, 0.121);
}
.tl-dot i { width: 8px; height: 8px; border-radius: 50%; background-image: var(--grad); }
.tl-card {
  border: 1px solid var(--line); border-radius: 16px; background: #fff;
  padding: 20px 24px; transition: all .4s;
}
.tl-item:hover .tl-card { transform: translateX(6px); border-color: rgba(123, 92, 240, .35); box-shadow: 0 2.5px 10.1px rgba(123, 92, 240, 0.066); }
.tl-card .top { display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap; }
.tl-card .yr {
  font-family: var(--font-mono); font-size: 24px; font-weight: 800; line-height: 1;
  background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.tl-card h4 { font-size: 16.5px; font-weight: 800; letter-spacing: -.01em; }
.tl-card .tag {
  margin-left: auto; font-family: var(--font-mono); font-size: 9.5px; letter-spacing: .2em;
  text-transform: uppercase; color: var(--dim);
}
.tl-card > p { margin-top: 10px; font-size: 13px; line-height: 1.85; color: var(--steel); }

/* 企业文化（带图标） */
.culture-grid { margin-top: 48px; display: grid; gap: 20px; }
.culture-card {
  height: 100%; border: 1px solid var(--line); border-radius: 16px; background: #fff; padding: 32px 24px;
  text-align: center; transition: all .5s;
}
.culture-card:hover { transform: translateY(-4px); box-shadow: 0 3.2px 12.3px rgba(28, 36, 48, 0.055); border-color: rgba(123, 92, 240, .3); }
.culture-ico {
  display: grid; place-items: center; width: 56px; height: 56px; margin: 0 auto; border-radius: 16px;
  /* 品牌渐变实底 + 白色图标（同 products 页 .icon-tile）：原为极浅渐变底 + 紫图标 */
  background-image: var(--grad); color: #fff;
  box-shadow: 0 1.1px 5px rgba(20, 151, 236, .193);
  transition: transform .5s;
}
.culture-card:hover .culture-ico { transform: scale(1.08) rotate(-4deg); }
.culture-ico svg { width: 24px; height: 24px; }
.culture-card h4 { margin-top: 18px; font-size: 18px; font-weight: 900; }
.culture-card .en { display: block; margin-top: 4px; font-family: var(--font-mono); font-size: 10px; letter-spacing: .24em; text-transform: uppercase; color: var(--azure); }
.culture-card p { margin-top: 12px; font-size: 12.5px; line-height: 1.85; color: var(--steel); }

/* 荣誉资质（滑动轮播） */
.honor-wrap { margin-top: 40px; }
.honor-track {
  display: flex; gap: 20px; overflow-x: auto; scroll-snap-type: x mandatory;
  padding: 4px 4px 20px; cursor: grab; scrollbar-width: none;
}
.honor-track::-webkit-scrollbar { display: none; }
.honor-card {
  scroll-snap-align: start; flex: 0 0 min(250px, 72vw);
  border: 1px solid var(--line); border-radius: 16px; background: #fff; padding: 28px 24px;
  text-align: center; transition: all .4s;
}
.honor-card:hover { transform: translateY(-4px); border-color: rgba(123, 92, 240, .35); box-shadow: 0 2.9px 11.2px rgba(123, 92, 240, 0.066); }
.honor-medal {
  display: grid; place-items: center; width: 52px; height: 52px; margin: 0 auto; border-radius: 50%;
  /* 品牌渐变实底 + 白色图标（同 .culture-ico 与 products 页 .icon-tile） */
  background-image: var(--grad); color: #fff;
  box-shadow: 0 1.1px 5px rgba(20, 151, 236, .193);
}
.honor-medal svg { width: 24px; height: 24px; }
.honor-card h4 { margin-top: 16px; font-size: 15.5px; font-weight: 800; }
.honor-card p { margin-top: 6px; font-size: 12px; line-height: 1.7; color: var(--steel); }
.honor-card .yr { display: inline-block; margin-top: 12px; font-family: var(--font-mono); font-size: 10.5px; letter-spacing: .18em; color: var(--dim); }
.honor-nav { margin-top: 8px; display: flex; align-items: center; justify-content: center; gap: 16px; }
.honor-nav .prac-bar { flex: 0 1 320px; }

/* ==========================================================================
   新闻详情：左右分栏（左正文 / 右新闻推荐）
   ========================================================================== */
.nd-wrap { padding-top: 56px; padding-bottom: 56px; }
.nd-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: 40px; align-items: start; }
.nd-main { min-width: 0; }
.nd-side { min-width: 0; }

@media (min-width: 1024px) {
  .nd-grid { grid-template-columns: minmax(0, 1fr) 320px; gap: 48px; }
  /* sticky 的活动范围 = 父盒（.nd-grid）内容盒高度，即整篇正文高度 */
  .nd-side { position: sticky; top: 92px; }
}

.nd-side-head { display: flex; align-items: center; gap: 10px; margin-bottom: 18px; }
.nd-side-head .bar {
  flex: 0 0 3px; width: 3px; height: 16px; border-radius: 999px;
  background-image: var(--grad);
}
.nd-side-head h3 { font-size: 17px; font-weight: 900; letter-spacing: -.01em; }
.nd-side-head .en {
  margin-left: auto; font-family: var(--font-mono); font-size: 10px;
  letter-spacing: .2em; text-transform: uppercase; color: var(--dim);
}

.nd-reco { display: grid; gap: 12px; }
.nd-reco-item {
  display: flex; gap: 12px; align-items: center;
  border: 1px solid var(--line); border-radius: 14px; background: #fff; padding: 12px;
  transition: all .3s;
}
.nd-reco-item:hover {
  border-color: rgba(20, 151, 236, .4); transform: translateY(-2px);
  box-shadow: 0 2px 10px rgba(28, 36, 48, .06);
}
.nd-reco-thumb { flex: 0 0 76px; width: 76px; height: 56px; border-radius: 10px; overflow: hidden; }
.nd-reco-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.nd-reco-body { min-width: 0; }
.nd-reco-body h4 {
  font-size: 13px; font-weight: 700; line-height: 1.55; color: var(--cream);
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.nd-reco-meta {
  margin-top: 6px; font-family: var(--font-mono); font-size: 10.5px;
  letter-spacing: .06em; color: var(--dim);
}
.nd-reco-more {
  margin-top: 16px; display: flex; align-items: center; justify-content: center; gap: 6px;
  border: 1px solid var(--line); border-radius: 14px; background: #fff; padding: 12px;
  font-size: 12.5px; font-weight: 600; color: var(--azure); transition: all .3s;
}
.nd-reco-more:hover { border-color: rgba(20, 151, 236, .45); background: rgba(20, 151, 236, .04); }
.nd-reco-more svg { width: 14px; height: 14px; }

/* ==========================================================================
   新闻（列表带缩略图，卡片行式同 849b115）
   ========================================================================== */
.news-filter { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 10px; }
.news-filter button {
  border: 1px solid var(--line); border-radius: 16px; background: #fff;
  padding: 8px 20px; font-size: 13px; font-weight: 500; color: var(--steel);
  transition: all .3s;
}
.news-filter button:hover { border-color: rgba(20, 151, 236, .4); color: var(--cream); }
.news-filter button.on {
  background-image: var(--grad); border-color: transparent; color: #fff;
  box-shadow: 0 1.4px 6.2px rgba(20, 151, 236, 0.193);
}
.news-list { margin-top: 48px; display: flex; flex-direction: column; gap: 20px; }
.news-item {
  position: relative; display: flex; flex-direction: column; gap: 20px; overflow: hidden;
  border: 1px solid var(--line); border-radius: 16px; background: #fff; padding: 24px;
  transition: all .5s;
}
.news-item:hover { transform: translateY(-4px); box-shadow: 0 3.6px 14px rgba(28, 36, 48, 0.066); }
.news-item::before {
  content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background-image: var(--grad); transform: scaleY(0); transform-origin: top; transition: transform .5s;
}
.news-item:hover::before { transform: scaleY(1); }
.news-thumb { position: relative; overflow: hidden; border-radius: 12px; flex-shrink: 0; }
.news-thumb img { width: 100%; aspect-ratio: 16/9; object-fit: cover; transition: transform .6s; }
.news-item:hover .news-thumb img { transform: scale(1.05); }
.news-body { min-width: 0; flex: 1; }
.news-meta { display: flex; align-items: center; gap: 10px; }
.cat-chip { display: inline-flex; align-items: center; gap: 4px; border-radius: 6px; padding: 4px 10px; font-size: 11px; font-weight: 600; }
.cat-chip svg { width: 12px; height: 12px; }
.cat-chip.corp { background-image: var(--grad-soft); color: var(--volt-strong); box-shadow: inset 0 0 0 1px rgba(123, 92, 240, .15); }
.cat-chip.ind { background: rgba(37, 195, 240, .1); color: var(--cyan-600); box-shadow: inset 0 0 0 1px rgba(37, 195, 240, .2); }
.news-meta .dt { display: inline-flex; align-items: center; gap: 5px; font-family: var(--font-mono); font-size: 11px; color: var(--dim); }
.news-meta .dt svg { width: 12px; height: 12px; }
.news-body h3 { margin-top: 12px; font-size: 17px; font-weight: 700; line-height: 1.45; letter-spacing: -.01em; transition: color .3s; }
.news-item:hover .news-body h3 { color: var(--volt-strong); }
.news-body .sum {
  margin-top: 8px; font-size: 13px; line-height: 1.85; color: var(--steel);
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.news-arrow {
  display: grid; place-items: center; flex-shrink: 0; width: 44px; height: 44px; border-radius: 50%;
  border: 1px solid var(--line); color: var(--steel); transition: all .3s;
  align-self: flex-end;
}
.news-arrow svg { width: 16px; height: 16px; transition: transform .3s; }
.news-item:hover .news-arrow { border-color: transparent; background-image: var(--grad); color: #fff; }
.news-item:hover .news-arrow svg { transform: translateX(2px); }

/* 新闻详情 */
.article-head { text-align: center; }
.article-head .bar { display: block; margin: 28px auto 0; width: 64px; height: 3px; border-radius: 16px; background-image: var(--grad); }
/* 正文不再单独限宽：宽度由 .container(1300) 决定，与其余页面内容区一致；
   左侧栏宽度由 .nd-grid 的栅格分配。 */
.article { margin: 0; max-width: none; }
.article-hero { margin: 0 0 36px; overflow: hidden; border-radius: 16px; box-shadow: 0 4px 15.7px rgba(12, 70, 110, 0.193); }
.article-hero img { width: 100%; height: 340px; object-fit: cover; display: block; }
.article > p { margin-top: 24px; font-size: 15px; line-height: 2.1; color: var(--steel); }
.article > p.lede { margin-top: 0; font-size: 16px; font-weight: 500; color: var(--cream); }
.article-nav { margin-top: 64px; padding-top: 40px; border-top: 1px solid var(--line); display: grid; gap: 16px; }
.an-item { border: 1px solid var(--line); border-radius: 16px; background: #fff; padding: 20px; transition: all .3s; display: block; }
.an-item:hover { border-color: rgba(20, 151, 236, .4); box-shadow: 0 1.8px 7.8px rgba(28, 36, 48, 0.044); }
.an-item span { display: flex; align-items: center; gap: 6px; font-size: 11px; font-weight: 600; color: var(--dim); }
.an-item.next span { justify-content: flex-end; }
.an-item span svg { width: 12px; height: 12px; }
.an-item h5 {
  margin-top: 8px; font-size: 13.5px; font-weight: 700; color: var(--cream);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.an-item.next { text-align: right; }
.an-item:hover h5 { color: var(--volt-strong); }

/* ==========================================================================
   内页底部 CTA —— 与首页 .lx-cta 模块 1:1 对齐
   （品牌渐变底 120deg #1497ec→#2aaee8→#7b5cf0 + 双圆光晕 + 双按钮）
   来源：桌面/联信无界/css/style.css 的 .lx-cta 段落
   ========================================================================== */
.lx-cta {
  position: relative; overflow: hidden;
  padding: 60px 0;
  background: linear-gradient(120deg, #1497ec 0%, #2aaee8 42%, #7b5cf0 100%);
}
.lx-cta::before { content: ""; position: absolute; top: -120px; right: -80px; width: 420px; height: 420px; border-radius: 50%; background: rgba(255, 255, 255, .10); }
.lx-cta::after { content: ""; position: absolute; bottom: -160px; left: -100px; width: 460px; height: 460px; border-radius: 50%; background: rgba(255, 255, 255, .08); }
.lx-cta-inner { position: relative; z-index: 1; text-align: center; color: #fff; }
.lx-cta .lx-sec-tag { background: rgba(255, 255, 255, .16); border-color: rgba(255, 255, 255, .4); color: #fff; }
.lx-cta h2 { font-size: 42px; font-weight: 800; margin-bottom: 16px; }
.lx-cta p { max-width: 640px; margin: 0 auto 38px; font-size: 15px; color: rgba(255, 255, 255, .92); }
.lx-cta-actions { display: flex; flex-wrap: wrap; gap: 18px; justify-content: center; }

/* 该模块依赖的基础件（内页样式表原本没有，随模块一并落地，仅本模块使用） */
.lx-sec-tag {
  display: inline-block; margin-bottom: 14px; padding: 6px 16px; border-radius: 100px;
  font-size: 13.5px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase;
  color: #1497ec; background: rgba(20, 151, 236, .08); border: 1px solid rgba(20, 151, 236, .2);
}
.lx-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 30px; border: 1px solid transparent; border-radius: 8px;
  font-size: 15px; font-weight: 600; white-space: nowrap; cursor: pointer; transition: all .3s ease;
}
.lx-btn-white { background: #fff; color: #1497ec; box-shadow: 0 1.8px 8.4px rgba(20, 90, 180, .18); }
.lx-btn-white:hover { transform: translateY(-2px); }
.lx-btn-outline { border-color: rgba(255, 255, 255, .75); color: #fff; }
.lx-btn-outline:hover { background: rgba(255, 255, 255, .14); }
.lx-btn-lg { padding: 15px 38px; font-size: 16px; border-radius: 10px; }

/* ==========================================================================
   响应式（断点同 Tailwind：sm 640 / md 768 / lg 1024 / xl 1280）
   ========================================================================== */
@media (min-width: 640px) {
  /* 注：原「.nav-logo .en { display:block }」已移除。
     新字标「Deeplink 联信无界」本身已含中英双名，旁边的 LIANXIN UNBOUNDED 属重复，
     且该标签宽约 162px，会在 1024px 断点把导航项挤成两行。如需恢复，取消下一行注释即可。 */
  /* .nav-logo .en { display: block; } */
  .prod-mods { grid-template-columns: repeat(3, 1fr); }
  .prod-mods.many { grid-template-columns: repeat(2, 1fr); }
  .feat-grid { grid-template-columns: repeat(2, 1fr); }
  .scene-grid { grid-template-columns: repeat(2, 1fr); }
  .pcards { grid-template-columns: repeat(2, 1fr); }
  .svc-matrix { grid-template-columns: repeat(2, 1fr); }
  .article-nav { grid-template-columns: repeat(2, 1fr); }
  .culture-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 768px) {

  .nav-inner { }
  .sec { padding: 112px 0; }
  .isec { padding: 40px 0; }
  .h2 { font-size: 46px; }

  .hero-inner { padding: 168px 0 64px; }
  .hero h1 { font-size: 64px; line-height: 1.08; }
  .hero .lead { font-size: 16.5px; }
  .hero-stats .num { font-size: 40px; }

  .pain-intro h2 { font-size: 38px; }
  .pain-item { grid-template-columns: 110px 1fr; gap: 32px; padding: 32px 0; }
  .pain-item .no { font-size: 34px; }
  .pain-item h3 { font-size: 21px; }
  .pain-item p { font-size: 14px; }

  .prod-block { padding: 40px; }
  .prod-meta h3 { font-size: 28px; }

  .stack-inner { padding: 48px; }
  .stack-idx .no { font-size: 64px; }
  .stack-card h3 { font-size: 32px; }
  .stack-points { padding-left: 32px; }

  .vsma-step h3 { font-size: 21px; }
  .vsma-steps { margin-left: 20px; padding-left: 48px; }
  .vsma-step .pt { left: -57px; }
  .svc-matrix-head h3 { font-size: 30px; }
  .dims-box { padding: 36px; }
  .dims-grid { grid-template-columns: repeat(2, 1fr); }

  .about-state { font-size: 40px; line-height: 1.35; }
  .why-row { padding: 44px 0; }
  .why-row .no { font-size: 52px; }
  .why-row h3 { font-size: 24px; }
  .mix-card { padding: 40px; }
  .mix-head h3 { font-size: 26px; }
  .mix-bar { height: 64px; }
  .mix-bar .seg { font-size: 15px; }

  .contact-info h2 { font-size: 48px; }
  .form { padding: 36px; }
  .form .fields { grid-template-columns: repeat(2, 1fr); }
  .form .field.wide { grid-column: span 2; }

  .ph-inner { padding: 168px 0 80px; }
  .ph-title { font-size: 52px; }
  .ph-sub { font-size: 15.5px; }
  .ph-title.sm { font-size: 40px; }

  .group-head h2 { font-size: 30px; }
  .scards { grid-template-columns: repeat(2, 1fr); }
  .hl-grid { grid-template-columns: repeat(3, 1fr); }
  .arch-zone { grid-template-columns: repeat(4, 1fr); }
  .arch-line {
    display: block; position: absolute; left: 12%; right: 12%; top: 50%;
    border-top: 2px dashed rgba(20, 151, 236, .3);
  }
  .bene-grid { grid-template-columns: repeat(3, 1fr); }
  .spec-row { grid-template-columns: 180px 1fr; }
  .rel-grid { grid-template-columns: repeat(3, 1fr); }

  .vsma5 { padding: 40px; }
  .vsma5 .grid { grid-template-columns: repeat(5, 1fr); }
  .v5cell .conn {
    display: block; position: absolute; right: -12px; top: 50%; width: 8px; height: 1px;
    background: linear-gradient(90deg, rgba(123, 92, 240, .5), rgba(37, 195, 240, .5));
  }
  .mx-grid { grid-template-columns: repeat(2, 1fr); }
  .mx-card { padding: 32px; }
  .ops-grid { grid-template-columns: repeat(3, 1fr); }
  .dims-grad .inner { grid-template-columns: repeat(5, 1fr); }

  .profile-card { padding: 48px; }
  .profile-card h2 { font-size: 30px; }
  .profile-stats { grid-template-columns: repeat(3, 1fr); }
  .supserv { grid-template-columns: auto 1fr 1fr; align-items: center; gap: 40px; padding: 40px; }

  .news-item { flex-direction: row; align-items: center; gap: 28px; padding: 28px; }
  .news-thumb { width: 230px; }
  .news-thumb img { aspect-ratio: 4/2.8; }
  .news-arrow { align-self: center; }
}

@media (min-width: 1024px) {
  .nav-links { display: flex; }
  .nav-cta { display: inline-flex; }
  .nav-toggle { display: none; }

  .hero-cols { grid-template-columns: repeat(12, 1fr); }
  .hero-copy { grid-column: span 6; }
  .hero-visual { grid-column: span 6; }
  .hero-stats { grid-template-columns: repeat(4, 1fr); }
  .hero-stats .stat { padding: 24px 32px; }
  .hero-stats .stat:nth-child(3), .hero-stats .stat:nth-child(4) { border-top: none; }
  .hero-stats .stat:nth-child(3) { border-left: 1px solid var(--line); }

  .pain-grid { grid-template-columns: repeat(12, 1fr); }
  .pain-intro { grid-column: span 4; }
  .pain-intro .sticky { position: sticky; top: 112px; }
  .pain-list-wrap { grid-column: span 8; }

  .prod-head { grid-template-columns: repeat(12, 1fr); align-items: flex-end; }
  .prod-head .main { grid-column: span 7; }
  .prod-head .side { grid-column: span 5; }
  .prod-head .side p, .prod-head .side .link-underline {  }
  .prod-block { grid-template-columns: repeat(12, 1fr); }
  .prod-meta { grid-column: span 4; }
  .prod-mods { grid-column: span 8; }
  .prod-mods.many { grid-template-columns: repeat(2, 1fr); }

  .stack-inner { grid-template-columns: repeat(12, 1fr); }
  .stack-meta { grid-column: span 4; }
  .stack-points-wrap { grid-column: span 6; }
  .stack-kpi-wrap { grid-column: span 2; }
  .stack-kpi { margin-top: 8px; }

  .vsma-grid { grid-template-columns: repeat(12, 1fr); }
  .vsma-img { grid-column: span 5; }
  .vsma-img .sticky { position: sticky; top: 112px; }
  .vsma-steps-wrap { grid-column: span 7; }

  .about-why .why-row { grid-template-columns: repeat(12, 1fr); }
  .why-row .c-no { grid-column: span 2; }
  .why-row .c-name { grid-column: span 4; }
  .why-row .c-body { grid-column: span 6; }

  .contact-grid { grid-template-columns: repeat(12, 1fr); padding-top: 112px; padding-bottom: 112px; }
  .contact-info { grid-column: span 6; }
  .form-wrap { grid-column: span 6; }

  .footer .cols { grid-template-columns: repeat(12, 1fr); }
  .footer .f-brand { grid-column: span 5; }
  .footer .f-nav { grid-column: span 3; }
  .footer .f-prod { grid-column: span 4; }

  .profile-grid { grid-template-columns: 1.1fr .9fr; }
  .pcards { grid-template-columns: repeat(3, 1fr); }
  .dlv-chips { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

@media (min-width: 1280px) {
  .prod-mods.many { grid-template-columns: repeat(3, 1fr); }
  .svc-matrix { grid-template-columns: repeat(4, 1fr); }
  .dims-grid { grid-template-columns: repeat(5, 1fr); }
}

/* 触屏：下拉点按展开（由 JS 加 .open） */
@media (hover: none) {
  .nav-item .drop { display: none; }
  .nav-item.open .drop { display: block; visibility: visible; opacity: 1; }
  .nav-item.open .drop-panel { transform: translateY(0); }
}

/* 小屏细节 */
@media (max-width: 767px) {
  .prac-card { padding: 22px; }
  .stack-points { border-left: none; padding-left: 0; border-top: 1px solid var(--line); padding-top: 20px; }
  .hero-stats .stat { padding: 20px; }
  .mix-legend { grid-template-columns: 1fr; gap: 6px; }
  .mix-bar .s3 { font-size: 11px; }
  .article-hero img { height: 220px; }
  .group-head > p { text-align: left; }
  .ph-tags { gap: 8px; }
  /* 品牌位双行文字移动端收窄（对应需求：品牌位企业名称双行文字） */
  .footer .f-name { font-size: 16px; font-weight: 700; letter-spacing: .02em; }
  .footer .f-en { font-size: 10px; font-weight: 400; letter-spacing: .20em; }
  /* 底部 CTA（对齐首页 .lx-cta 的小屏表现） */
  .lx-cta { padding: 64px 0; }
  .lx-cta h2 { font-size: 28px; }
  .lx-cta p { font-size: 14.5px; }
  .lx-cta-actions { gap: 12px; }
  .lx-btn-lg { padding: 13px 26px; font-size: 15px; }
}

/* 极窄视口兜底（对应需求：品牌位企业名称双行文字） */
@media (max-width: 360px) {
  .footer .f-en { letter-spacing: .18em; }
}

@media (prefers-reduced-motion: reduce) {
  .rv { opacity: 1; transform: none; transition: none; }
  .marquee-track, .grad-anim, .ph-bg { animation: none; }
}

/* 内页深色 Banner 下的导航：默认即为实色态 */
/* 内页顶部为深色横幅，导航默认即为实色态；底色对齐首页头部 */
.nav.solid { background: rgba(255, 255, 255, .86); -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px); border-bottom: 1px solid var(--line); }


/* ==========================================================================
   文字版品牌标（Deeplink 联信无界）—— 直接书写的文字，不使用图片
   字色取自品牌蓝 #4C7CF0；拉丁部分加粗、中文部分常规，复刻原字标的粗细对比。
   ========================================================================== */
.bm-en, .bm-cn { color: #4c7cf0; transition: opacity .3s; }
.bm-en { font-size: 30px; font-weight: 700; letter-spacing: .005em; line-height: 1; }
.bm-cn { font-size: 18px; font-weight: 400; letter-spacing: .04em; line-height: 1; letter-spacing: 2px; }

@media (max-width: 767px) {
  .bm-en { font-size: 26px; }
  .bm-cn { font-size: 17px; }
}


/* ==========================================================================
   页脚（整体对齐首页 css/home.css 的 .lx-footer）
   —— 内页原深色页脚按最新要求替换为与首页一致的浅色页脚。
   ========================================================================== */
.brandmark { display: inline-flex; align-items: baseline; gap: 13px; line-height: 1; white-space: nowrap; }
/* line-height:1.7 同首页 body 行高，使页脚的行距与首页完全一致 */
.lx-footer { background: #f7fafd; border-top: 1px solid var(--line); line-height: 1.7; }
.lx-footer-inner { display: grid; grid-template-columns: 1.3fr 1fr 1fr 1fr 1fr; gap: 36px; padding: 64px 40px 48px; }
.lx-footer-brand .brandmark { margin-bottom: 16px; }
.lx-footer-brand p { font-size: 13.5px; color: var(--ink-3); line-height: 1.8; }
.lx-footer-col h5 { font-size: 15px; font-weight: 700; margin-bottom: 16px; }
.lx-footer-col a { display: block; font-size: 13.5px; color: var(--ink-3); padding: 5px 0; transition: color .25s; }
.lx-footer-col a:hover { color: var(--blue); }
.lx-footer-copy { border-top: 1px solid var(--line); padding: 20px 0; font-size: 13px; color: var(--ink-3); text-align: center; }

/* 断点与首页 css/home.css 对齐；左右内边距写成长写，
   避免简写把 .lx-footer-inner 的 64px/48px 上下内边距一起覆盖掉。
   页脚现有 4 个链接列：≥1181px 时品牌与 4 列同排；再窄则品牌独占一行、
   4 列仍在同一排（保证列宽 ≥200px，最长链接不折行）；≤960px 起降为 2 列。 */
@media (max-width: 1180px) {
  .lx-footer-inner { grid-template-columns: repeat(4, 1fr); }
  .lx-footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 960px) {
  .lx-footer-inner { grid-template-columns: 1fr 1fr; padding-left: 24px; padding-right: 24px; }
}
@media (max-width: 600px) { .lx-footer-inner { grid-template-columns: 1fr; } }

/* 预约咨询页（contact.html）：本页无顶部横幅，用内边距避开固定导航 */
.contact-page { padding-top: 68px; }
.contact-page .contact { border-top: 0; }

/* ---------- 新闻空状态 / 分页 ---------- */
.news-empty {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 14px; padding: 90px 20px; border: 1px dashed var(--line); border-radius: 18px;
  color: var(--ink-3); background: #fff;
}
.news-empty svg { color: var(--blue); opacity: .5; }
.news-empty p { margin: 0; font-size: 14px; }

.lx-pager { display: flex; justify-content: center; margin-top: 56px; }
.lx-pager ul { display: flex; align-items: center; gap: 8px; list-style: none; margin: 0; padding: 0; }
.lx-pager li > a, .lx-pager li > span {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 40px; height: 40px; padding: 0 12px; border-radius: 10px;
  border: 1px solid var(--line); background: #fff; color: var(--ink-2);
  font-size: 14px; text-decoration: none; transition: all .25s;
}
.lx-pager li > a:hover { border-color: var(--blue); color: var(--blue); }
.lx-pager li.active > span { background: var(--grad); border-color: transparent; color: #fff; }
.lx-pager li.disabled > span { opacity: .45; }

/* ---------- 表单提交提示 ---------- */
.form-msg { margin: 12px 0 0; font-size: 14px; min-height: 20px; }
.form-msg.err { color: #e0453f; }
.form-msg.ok { color: #12a05c; }