/* ============================================================
   苏州冠知通信息技术有限公司 - 官网样式（科技感增强版）
   主色：#0066cc 商务深蓝 / 辅色：#22d3ee 科技青
   设计语言：深色科技 Banner + 浅色内容区 + 网格光效 + 玻璃卡片
   ============================================================ */
:root {
  --primary: #0066cc;
  --primary-dark: #004a99;
  --primary-light: #e8f2fc;
  --cyan: #22d3ee;
  --aqua: #38bdf8;
  --navy: #04162b;
  --navy-2: #0a2a4d;
  --ink: #0e1e30;
  --muted: #5d6f85;
  --bg: #ffffff;
  --bg-alt: #f4f8fd;
  --line: #e2eaf3;
  --shadow: 0 14px 40px rgba(9, 40, 84, 0.10);
  --shadow-tech: 0 18px 50px rgba(0, 82, 163, 0.16);
  --radius: 14px;
  --header-h: 76px;
  --mono: "JetBrains Mono", "Cascadia Code", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --grid-line: rgba(0, 102, 204, 0.055);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "Microsoft YaHei", "PingFang SC", "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  padding-top: var(--header-h);
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
.container { width: min(1200px, 92%); margin: 0 auto; }
::selection { background: rgba(0, 102, 204, .85); color: #fff; }

/* 顶部滚动进度条 */
.scroll-progress {
  position: fixed; top: 0; left: 0; height: 2px; width: 0;
  background: linear-gradient(90deg, var(--primary), var(--cyan));
  box-shadow: 0 0 12px rgba(34, 211, 238, .8);
  z-index: 200; transition: width .1s linear;
}

/* ---------- 顶部导航 ---------- */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(255, 255, 255, .86);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid rgba(0, 102, 204, .10);
  transition: box-shadow .25s, background .25s;
}
.site-header::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0,102,204,.55), rgba(34,211,238,.75), rgba(0,102,204,.55), transparent);
  opacity: .55;
}
.site-header.scrolled { box-shadow: 0 8px 30px rgba(9, 40, 84, .10); background: rgba(255,255,255,.94); }
.header-inner {
  height: var(--header-h);
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.brand { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.brand-logo {
  width: 44px; height: 44px; padding: 4px; border-radius: 10px;
  background: linear-gradient(145deg, #ffffff, #eef6ff);
  box-shadow: 0 4px 14px rgba(0, 102, 204, .18), inset 0 0 0 1px rgba(0,102,204,.10);
  transition: box-shadow .3s, transform .3s;
}
.brand:hover .brand-logo { transform: translateY(-1px); box-shadow: 0 8px 20px rgba(0, 102, 204, .26); }
.brand-name { font-size: 17px; font-weight: 700; letter-spacing: .5px; }
.brand-sub {
  font-size: 12px; color: var(--primary); letter-spacing: 1.6px;
  font-family: var(--mono);
}

.main-nav { display: flex; align-items: center; gap: 2px; }
.main-nav a {
  position: relative;
  padding: 8px 13px; font-size: 15px; color: var(--ink); border-radius: 8px;
  transition: color .2s, background .2s;
  white-space: nowrap;
}
.main-nav a::after {
  content: ""; position: absolute; left: 50%; bottom: 2px; width: 0; height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--cyan));
  transform: translateX(-50%); transition: width .25s; border-radius: 2px;
}
.main-nav a:hover { color: var(--primary); background: rgba(0, 102, 204, .05); }
.main-nav a:hover::after { width: 40%; }
.main-nav a.active {
  color: #fff;
  background: linear-gradient(135deg, var(--primary-dark), var(--primary) 65%, #2b8ee0);
  box-shadow: 0 6px 18px rgba(0, 102, 204, .32), inset 0 1px 0 rgba(255,255,255,.22);
}
.main-nav a.active::after { display: none; }

.header-actions { display: flex; align-items: center; gap: 10px; }
.icon-btn {
  width: 40px; height: 40px; border: 1px solid rgba(0,102,204,.12);
  background: rgba(255,255,255,.7); cursor: pointer;
  display: flex; align-items: center; justify-content: center; border-radius: 10px;
  color: var(--ink); transition: background .2s, color .2s, border-color .2s, box-shadow .2s;
}
.icon-btn:hover {
  background: #fff; color: var(--primary); border-color: rgba(0,102,204,.35);
  box-shadow: 0 6px 16px rgba(0,102,204,.16);
}
.icon-btn svg { width: 20px; height: 20px; }
.nav-toggle { display: none; }

/* 搜索栏 */
.search-bar {
  display: none; border-top: 1px solid var(--line);
  background: linear-gradient(180deg, #f7fbff, #ffffff);
}
.site-header.search-open .search-bar { display: block; }
.search-bar-inner { padding: 14px 0; position: relative; }
.search-bar input {
  width: 100%; height: 44px; padding: 0 16px 0 44px; font-size: 15px;
  border: 1px solid var(--line); border-radius: 10px; outline: none; background: #fff;
  transition: border-color .2s, box-shadow .2s;
}
.search-bar input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0, 102, 204, .12);
}
.search-bar .search-ico { position: absolute; left: 14px; top: 26px; width: 18px; height: 18px; color: var(--muted); }
.search-results {
  position: absolute; left: 0; right: 0; top: 64px; background: #fff;
  border: 1px solid var(--line); border-radius: 10px; box-shadow: var(--shadow);
  overflow: hidden; display: none;
}
.search-results.show { display: block; }
.search-results a {
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  padding: 10px 16px; border-bottom: 1px solid #f0f5fb; font-size: 14px;
  transition: background .15s;
}
.search-results a:last-child { border-bottom: none; }
.search-results a:hover { background: rgba(0,102,204,.06); }
.search-results .tag {
  font-size: 12px; color: var(--primary); background: var(--primary-light);
  padding: 2px 8px; border-radius: 4px; flex-shrink: 0; font-family: var(--mono);
}
.search-empty { padding: 14px 16px; font-size: 14px; color: var(--muted); display: none; }

/* ---------- 首页 Banner（深色科技） ---------- */
.banner {
  position: relative; min-height: 460px; display: flex; align-items: center;
  color: #fff; overflow: hidden; background: var(--navy);
  isolation: isolate;
}
.banner-slides { position: absolute; inset: 0; z-index: 0; overflow: hidden; }
.banner-bg {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
  filter: saturate(.85) contrast(1.06) brightness(.82);
  transform: scale(1.02);
  opacity: 0;
  transition: opacity 1.4s ease, transform 1.6s ease;
  will-change: opacity, transform;
}
.banner-bg.is-active { opacity: 1; transform: scale(1.04) translateX(0); z-index: 2; }
.banner-bg.is-right  { opacity: 0; transform: scale(1.04) translateX(5%); }
.banner-bg.is-left   { opacity: 0; transform: scale(1.04) translateX(-5%); }
@media (prefers-reduced-motion: reduce) {
  .banner-bg { transition: opacity 1.4s ease; transform: scale(1.02); }
  .banner-bg.is-active { transform: scale(1.02); }
  .banner-bg.is-right { transform: scale(1.02); }
  .banner-bg.is-left { transform: scale(1.02); }
}
.banner::after {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background:
    linear-gradient(100deg, rgba(3, 14, 30, .94) 0%, rgba(4, 34, 68, .86) 45%, rgba(0, 74, 153, .42) 100%),
    radial-gradient(80% 120% at 82% 30%, rgba(34, 211, 238, .20), transparent 60%);
}
/* 网格 + 扫描光带 + 光晕 */
.banner-fx {
  position: absolute; inset: 0; z-index: 2; pointer-events: none; overflow: hidden;
}
.banner-fx::before {
  content: ""; position: absolute; inset: -20%;
  background-image:
    linear-gradient(to right, rgba(120, 200, 255, .18) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(120, 200, 255, .18) 1px, transparent 1px);
  background-size: 72px 72px;
  transform: perspective(600px) rotateX(52deg) translateY(12%);
  transform-origin: center bottom;
  -webkit-mask-image: radial-gradient(70% 90% at 60% 60%, #000 20%, transparent 78%);
  mask-image: radial-gradient(70% 90% at 60% 60%, #000 20%, transparent 78%);
  opacity: .55;
}
.banner-fx::after {
  content: ""; position: absolute; top: 0; bottom: 0; width: 34%;
  background: linear-gradient(90deg, transparent, rgba(120, 220, 255, .10), rgba(180, 240, 255, .22), rgba(120, 220, 255, .10), transparent);
  animation: bannerScan 7s linear infinite;
  mix-blend-mode: screen;
}
@keyframes bannerScan {
  0% { transform: translateX(-120%) skewX(-12deg); }
  100% { transform: translateX(420%) skewX(-12deg); }
}
/* 粒子连线画布 */
.fx-canvas {
  position: absolute; inset: 0; width: 100%; height: 100%;
  z-index: 2; pointer-events: none;
  opacity: .8; mix-blend-mode: screen;
}
.banner-content { position: relative; z-index: 3; max-width: 780px; padding: 64px 0; }
.banner-eyebrow {
  display: inline-flex; align-items: center; gap: 12px;
  font-size: 12.5px; letter-spacing: .34em; text-transform: uppercase;
  color: #8fd6ff; font-family: var(--mono);
  padding: 6px 14px 6px 12px; border: 1px solid rgba(120, 200, 255, .30);
  border-radius: 4px; background: rgba(9, 46, 88, .45);
  backdrop-filter: blur(6px);
}
.banner-eyebrow::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%;
  background: var(--cyan); box-shadow: 0 0 10px 2px rgba(34, 211, 238, .9);
  animation: pulseDot 2s ease-in-out infinite;
}
@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .45; transform: scale(.7); }
}
.banner-title {
  font-size: 48px; font-weight: 700; margin: 22px 0 14px; letter-spacing: 1.5px;
  color: #ffffff;
  text-shadow: 0 3px 6px rgba(2, 16, 34, .55), 0 12px 36px rgba(34, 140, 220, .35);
  line-height: 1.25;
}
.banner-slogan { font-size: 22px; font-weight: 600; letter-spacing: 1.5px; color: #dceeff; }
.banner-slogan .hl { color: var(--cyan); text-shadow: 0 0 14px rgba(34, 211, 238, .75); }
.banner-btn {
  position: relative; overflow: hidden;
  display: inline-flex; align-items: center; gap: 10px;
  margin-top: 38px; padding: 14px 40px;
  background: linear-gradient(120deg, var(--primary) 0%, #1f8fe0 55%, #22b8e0 100%);
  color: #fff; font-size: 16px; border-radius: 6px;
  box-shadow: 0 10px 30px rgba(0, 102, 204, .45), inset 0 1px 0 rgba(255,255,255,.25);
  transition: transform .25s, box-shadow .25s, filter .25s;
}
.banner-btn::after {
  content: ""; position: absolute; top: 0; left: -60%; width: 45%; height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255,255,255,.55), transparent);
  transform: skewX(-18deg); transition: left .55s;
}
.banner-btn:hover {
  transform: translateY(-2px); filter: brightness(1.06);
  box-shadow: 0 16px 40px rgba(15, 130, 220, .55), inset 0 1px 0 rgba(255,255,255,.3);
}
.banner-btn:hover::after { left: 130%; }

/* HUD 四角括号 + 底部光带 */
.banner-hud {
  position: absolute; inset: 24px; z-index: 2; pointer-events: none; opacity: .55;
  background:
    linear-gradient(#7ee6ff, #7ee6ff) left 0 top 0 / 30px 2px,
    linear-gradient(#7ee6ff, #7ee6ff) left 0 top 0 / 2px 30px,
    linear-gradient(#7ee6ff, #7ee6ff) right 0 top 0 / 30px 2px,
    linear-gradient(#7ee6ff, #7ee6ff) right 0 top 0 / 2px 30px,
    linear-gradient(#7ee6ff, #7ee6ff) left 0 bottom 0 / 30px 2px,
    linear-gradient(#7ee6ff, #7ee6ff) left 0 bottom 0 / 2px 30px,
    linear-gradient(#7ee6ff, #7ee6ff) right 0 bottom 0 / 30px 2px,
    linear-gradient(#7ee6ff, #7ee6ff) right 0 bottom 0 / 2px 30px;
  background-repeat: no-repeat;
  filter: drop-shadow(0 0 6px rgba(34, 211, 238, .8));
}
.banner-line {
  position: absolute; left: 0; right: 0; bottom: 0; height: 2px; z-index: 2; pointer-events: none;
  background: linear-gradient(90deg, transparent 4%, rgba(34, 211, 238, .75) 30%, rgba(150, 235, 255, .95) 55%, rgba(34, 211, 238, .75) 80%, transparent 96%);
  box-shadow: 0 0 16px rgba(34, 211, 238, .6);
}

/* ---------- 通用板块 ---------- */
.section { padding: 78px 0; position: relative; }
.section.alt {
  background:
    radial-gradient(60% 60% at 12% 0%, rgba(0, 102, 204, .055), transparent 70%),
    radial-gradient(50% 50% at 92% 100%, rgba(34, 211, 238, .06), transparent 70%),
    var(--bg-alt);
  border-top: 1px solid rgba(0, 102, 204, .06);
  border-bottom: 1px solid rgba(0, 102, 204, .06);
}
.section.alt::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(to right, var(--grid-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-line) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0,0,0,.55), transparent 85%);
  mask-image: linear-gradient(180deg, rgba(0,0,0,.55), transparent 85%);
}
.section > .container { position: relative; z-index: 1; }

.section-head { text-align: center; margin-bottom: 48px; }
.section-head h2 {
  font-size: 31px; letter-spacing: 1.5px; font-weight: 700;
  color: var(--ink); position: relative;
}
.section-head h2 .en {
  font-family: var(--mono); font-weight: 400; color: #9aacc0;
  font-size: 15px; margin-left: 12px; letter-spacing: .18em;
  text-transform: uppercase;
}
.section-head .sub { color: var(--muted); margin-top: 10px; font-size: 15px; }
.section-head .bar {
  width: 64px; height: 3px; border-radius: 3px; margin: 18px auto 0;
  background: linear-gradient(90deg, var(--primary), var(--cyan));
  box-shadow: 0 0 12px rgba(34, 211, 238, .6);
  position: relative;
}
.section-head .bar::before, .section-head .bar::after {
  content: ""; position: absolute; top: 50%; width: 18px; height: 1px;
  background: rgba(0, 102, 204, .35);
}
.section-head .bar::before { right: 100%; margin-right: 10px; }
.section-head .bar::after { left: 100%; margin-left: 10px; }

/* 左对齐标题（首页编辑式版式） */
.section-head.left {
  text-align: left; display: flex; align-items: flex-end; justify-content: space-between;
  gap: 26px; flex-wrap: wrap; margin-bottom: 40px;
}
.section-head.left .bar { margin: 16px 0 0; }
.section-head.left h2::after {
  content: ""; display: block; width: 54px; height: 3px; margin-top: 15px; border-radius: 3px;
  background: linear-gradient(90deg, var(--primary), var(--cyan));
  box-shadow: 0 0 12px rgba(34, 211, 238, .55);
}
.head-link {
  font-family: var(--mono); font-size: 13px; letter-spacing: .1em; color: var(--primary);
  border-bottom: 1px solid rgba(0, 102, 204, .35); padding-bottom: 4px;
  white-space: nowrap; transition: color .2s, border-color .2s;
}
.head-link em { font-style: normal; margin-left: 7px; display: inline-block; transition: transform .25s; }
.head-link:hover { color: var(--primary-dark); border-color: var(--primary-dark); }
.head-link:hover em { transform: translateX(5px); }

/* ---------- 首页热门方案：一大两小 ---------- */
.hot-layout { display: grid; grid-template-columns: 1.18fr .82fr; gap: 26px; align-items: stretch; }
.hot-main { display: flex; }
.hot-main .card { height: 100%; width: 100%; }
.hot-main .card-cover { aspect-ratio: 16 / 10; }
.hot-main .card-body { padding: 26px 30px 28px; gap: 12px; }
.hot-main .card-body h3 { font-size: 21px; letter-spacing: .3px; }
.hot-main .card-body p {
  font-size: 14.5px; line-height: 1.75;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.hot-side { display: grid; grid-template-rows: 1fr 1fr; gap: 26px; min-width: 0; }
.hot-side .card { flex-direction: row; height: 100%; }
.hot-side .card-cover {
  width: 40%; flex-shrink: 0; aspect-ratio: auto; height: 100%;
  border-right: 1px solid rgba(0, 102, 204, .08);
}
.hot-side .card-body { padding: 20px 22px; gap: 8px; min-width: 0; }
.hot-side .card-body h3 { font-size: 16px; line-height: 1.45; }
.hot-side .card-body p {
  font-size: 13px; line-height: 1.65;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.hot-side .card-hot { font-size: 11.5px; padding: 3px 9px; }
.hot-side .card-more { font-size: 13px; }

/* ---------- 首页客户与联系 ---------- */
.client-contact { display: grid; grid-template-columns: 1.35fr .85fr; gap: 26px; align-items: stretch; }
.client-panel, .contact-panel {
  position: relative; overflow: hidden; border-radius: var(--radius);
  padding: 34px 32px; border: 1px solid rgba(0, 102, 204, .12);
  background: linear-gradient(180deg, #fff, #fbfdff);
  box-shadow: 0 2px 12px rgba(9, 40, 84, .05);
}
.client-panel::before, .contact-panel::before {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--primary) 45%, transparent);
  opacity: .8;
}
.panel-label {
  font-family: var(--mono); font-size: 11.5px; letter-spacing: .2em; text-transform: uppercase;
  color: #8ba1b8; margin-bottom: 20px;
}
.client-panel .case-strip { justify-content: flex-start; gap: 12px; }
.client-panel .case-strip span { padding: 9px 20px; font-size: 13.5px; }
.panel-note { margin-top: 20px; font-size: 13.5px; color: var(--muted); line-height: 1.75; }
.contact-panel {
  display: flex; flex-direction: column;
  background: linear-gradient(150deg, #04162b 0%, #0a3d6d 60%, #0d6bb5 100%);
  border-color: rgba(34, 211, 238, .22);
  box-shadow: 0 18px 40px rgba(4, 30, 60, .22);
}
.contact-panel::before { background: linear-gradient(90deg, var(--cyan), transparent 70%); opacity: 1; }
.contact-panel .panel-label { color: rgba(186, 224, 250, .72); margin-bottom: 14px; }
.contact-phone {
  display: block; font-family: var(--mono); font-size: clamp(23px, 2.3vw, 29px); font-weight: 700;
  color: #fff; letter-spacing: .03em; line-height: 1.35; white-space: nowrap;
  text-shadow: 0 0 22px rgba(34, 211, 238, .5);
  transition: color .2s;
}
.contact-phone:hover { color: var(--cyan); }
.contact-addr {
  font-size: 13.5px; color: #c3ddf2; line-height: 1.8;
  margin-top: 14px; padding-top: 14px;
  border-top: 1px dashed rgba(255, 255, 255, .22);
}
.contact-actions { margin-top: auto; padding-top: 24px; display: flex; gap: 12px; flex-wrap: wrap; }
.contact-panel .btn-outline {
  padding: 9px 20px; font-size: 13px; color: #fff;
  border-color: rgba(255, 255, 255, .42); background: rgba(255, 255, 255, .06);
}
.contact-panel .btn-outline:hover {
  background: #fff; color: var(--primary); border-color: #fff;
  box-shadow: 0 10px 24px rgba(0, 0, 0, .25);
}

/* ---------- 卡片（玻璃 / 渐变描边） ---------- */
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.card-grid.two { grid-template-columns: repeat(2, 1fr); }
.card-grid.four { grid-template-columns: repeat(4, 1fr); }
.card {
  position: relative;
  background: linear-gradient(180deg, #ffffff 0%, #fbfdff 100%);
  border-radius: var(--radius); overflow: hidden;
  border: 1px solid rgba(0, 102, 204, .10);
  box-shadow: 0 2px 12px rgba(9, 40, 84, .05);
  transition: transform .3s cubic-bezier(.22,.61,.36,1), box-shadow .3s, border-color .3s;
  display: flex; flex-direction: column;
}
/* 渐变描边（悬停显现） */
.card::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 1px;
  background: linear-gradient(135deg, transparent 22%, rgba(34,211,238,.75) 48%, rgba(0,102,204,.85) 62%, transparent 82%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  opacity: 0; transition: opacity .35s; pointer-events: none; z-index: 3;
}
.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-tech);
  border-color: rgba(0, 102, 204, .18);
}
.card:hover::before { opacity: 1; }
.card-cover { aspect-ratio: 16 / 10; overflow: hidden; background: var(--primary-light); position: relative; }
.card-cover::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(4, 22, 43, .10), transparent 35%, rgba(0, 74, 153, .10));
}
.card-cover svg { width: 100%; height: 100%; }
.card-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s cubic-bezier(.22,.61,.36,1); }
.card:hover .card-cover img { transform: scale(1.07); }
.card-body { padding: 22px 24px 24px; flex: 1; display: flex; flex-direction: column; gap: 10px; }
.card-body h3 { font-size: 17px; line-height: 1.5; letter-spacing: .2px; }
.card-body h3 a:hover { color: var(--primary); }
.card-body p { font-size: 14px; color: var(--muted); flex: 1; }
.card-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.card-tags span {
  font-size: 12px; color: var(--primary); background: rgba(0, 102, 204, .07);
  border: 1px solid rgba(0, 102, 204, .12);
  padding: 3px 10px; border-radius: 4px; font-family: var(--mono);
}
.card-more {
  font-size: 14px; color: var(--primary); font-weight: 600;
  display: inline-flex; align-items: center; gap: 6px; letter-spacing: .3px;
  transition: gap .25s;
}
.card-more:hover { text-decoration: none; gap: 12px; }
.card-hot {
  display: inline-flex; align-items: center; gap: 6px; font-size: 12.5px;
  color: #a35f00; background: linear-gradient(120deg, #fff5db, #ffecc2);
  border: 1px solid rgba(217, 144, 0, .22);
  padding: 4px 11px; border-radius: 4px;
  width: fit-content; font-family: var(--mono);
}
.card-badges { display: flex; flex-wrap: wrap; gap: 8px; }
.card-phone {
  margin-top: auto; padding-top: 12px;
  border-top: 1px dashed rgba(0, 102, 204, .18);
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 8px 14px; flex-wrap: wrap;
}
.card-phone .cp-label { font-size: 12.5px; color: var(--muted); letter-spacing: .06em; white-space: nowrap; }
.card-phone .cp-num {
  font-family: var(--mono); font-size: 17px; font-weight: 700;
  color: var(--primary); letter-spacing: .04em; white-space: nowrap;
}
.card-phone .cp-num:hover { text-decoration: underline; }
.hot-main .card-phone { margin-top: 0; }
.hot-main .card-phone .cp-num { font-size: 18px; }

/* 查看更多按钮 */
.more-wrap { text-align: center; margin-top: 44px; }
.btn-outline {
  position: relative; overflow: hidden;
  display: inline-flex; align-items: center; gap: 10px;
  padding: 12px 38px; border: 1px solid rgba(0, 102, 204, .38);
  color: var(--primary); border-radius: 6px; font-size: 15px; font-weight: 600;
  background: rgba(255,255,255,.7); transition: all .25s;
}
.btn-outline::after {
  content: ""; position: absolute; top: 0; left: -60%; width: 40%; height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255,255,255,.65), transparent);
  transform: skewX(-18deg); transition: left .6s;
}
.btn-outline:hover {
  background: linear-gradient(120deg, var(--primary), #1f8fe0);
  color: #fff; border-color: transparent;
  box-shadow: 0 12px 30px rgba(0, 102, 204, .35); transform: translateY(-2px);
}
.btn-outline:hover::after { left: 130%; }

/* ---------- 页面 Hero（子页面顶部） ---------- */
.page-hero {
  position: relative; overflow: hidden;
  background: linear-gradient(115deg, #031426 0%, var(--primary-dark) 55%, #1279c9 100%);
  color: #fff; padding: 72px 0 64px;
  isolation: isolate;
}
.page-hero::before {
  content: ""; position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(140, 210, 255, .16) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(140, 210, 255, .16) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: linear-gradient(115deg, rgba(0,0,0,.85), transparent 78%);
  mask-image: linear-gradient(115deg, rgba(0,0,0,.85), transparent 78%);
}
.page-hero::after {
  content: ""; position: absolute; right: -8%; top: -40%; width: 46%; height: 180%;
  background: radial-gradient(closest-side, rgba(34, 211, 238, .28), transparent 72%);
  z-index: 1; pointer-events: none;
}
.page-hero .hero-bg { position: absolute; inset: 0; }
.page-hero .hero-bg img {
  width: 100%; height: 100%; object-fit: cover;
  filter: saturate(.8) brightness(.8);
}
.page-hero.has-photo .hero-bg::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(115deg, rgba(3, 18, 36, .95) 0%, rgba(4, 40, 78, .90) 52%, rgba(0, 90, 160, .62) 100%);
}
.page-hero.has-photo::before {
  background-image:
    linear-gradient(to right, rgba(140, 210, 255, .12) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(140, 210, 255, .12) 1px, transparent 1px);
}
.page-hero { background: linear-gradient(115deg, #031426 0%, var(--primary-dark) 52%, #1279c9 100%); }
.page-hero .container { position: relative; z-index: 3; }
.page-hero .fx-canvas { z-index: 2; }
.page-hero .crumb {
  font-size: 12.5px; color: #9dc9ea; margin-bottom: 14px;
  font-family: var(--mono); letter-spacing: .1em;
}
.page-hero .crumb a { color: #cfe8fa; }
.page-hero .crumb a:hover { color: #fff; }
.page-hero h1 {
  font-size: 36px; letter-spacing: 2.5px; line-height: 1.3;
  background: linear-gradient(96deg, #ffffff 25%, #c8e9ff 75%, #8fd6ff 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.page-hero h1::after {
  content: ""; display: block; width: 56px; height: 3px; margin-top: 16px;
  background: linear-gradient(90deg, var(--cyan), rgba(34,211,238,0));
  box-shadow: 0 0 10px rgba(34, 211, 238, .7);
}
.page-hero .desc { margin-top: 16px; max-width: 760px; color: #d3e6f7; font-size: 15px; }

/* ---------- 服务范围 ---------- */
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.service-item {
  position: relative; display: flex; gap: 18px; align-items: flex-start;
  background: #fff; border: 1px solid rgba(0, 102, 204, .10);
  border-radius: var(--radius); padding: 26px 24px;
  transition: transform .3s, box-shadow .3s, border-color .3s;
  overflow: hidden;
}
.service-item::after {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: linear-gradient(180deg, var(--primary), var(--cyan));
  transform: scaleY(0); transform-origin: top; transition: transform .35s;
}
.service-item:hover {
  transform: translateY(-5px); box-shadow: var(--shadow-tech);
  border-color: rgba(0, 102, 204, .2);
}
.service-item:hover::after { transform: scaleY(1); }
.service-item .num {
  width: 48px; height: 48px; flex-shrink: 0; border-radius: 12px;
  background: linear-gradient(145deg, #eaf4ff, #ffffff);
  border: 1px solid rgba(0, 102, 204, .18);
  color: var(--primary); font-family: var(--mono);
  display: flex; align-items: center; justify-content: center;
  font-size: 17px; font-weight: 700; letter-spacing: .04em;
  box-shadow: inset 0 1px 0 #fff, 0 4px 12px rgba(0, 102, 204, .10);
}
.service-item h3 { font-size: 16px; margin-bottom: 5px; letter-spacing: .3px; }
.service-item p { font-size: 13.5px; color: var(--muted); }

/* ---------- 客户案例横条 ---------- */
.case-strip { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }
.case-strip span {
  position: relative;
  padding: 11px 28px; background: rgba(255,255,255,.8);
  border: 1px solid rgba(0, 102, 204, .14);
  border-radius: 6px; font-size: 14px; color: #41556c;
  transition: all .25s; letter-spacing: .3px;
}
.case-strip span:hover {
  color: var(--primary); border-color: rgba(0, 102, 204, .45);
  background: #fff; transform: translateY(-3px);
  box-shadow: 0 10px 24px rgba(0, 102, 204, .16);
}

/* ---------- 联系咨询板块 ---------- */
.contact-wrap { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.contact-item {
  position: relative; overflow: hidden;
  background: linear-gradient(180deg, #ffffff, #fafdff);
  border: 1px solid rgba(0, 102, 204, .12);
  border-radius: var(--radius); padding: 32px 24px; text-align: center;
  transition: transform .3s, box-shadow .3s;
}
.contact-item::before {
  content: ""; position: absolute; left: 50%; top: 0; width: 60%; height: 2px;
  transform: translateX(-50%);
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  opacity: .8;
}
.contact-item:hover { transform: translateY(-5px); box-shadow: var(--shadow-tech); }
.contact-item .big {
  font-size: 24px; font-weight: 700; color: var(--primary); margin: 10px 0 6px;
  font-family: var(--mono); letter-spacing: .04em;
  text-shadow: 0 0 18px rgba(0, 102, 204, .18);
}
.contact-item .label { font-size: 13px; color: var(--muted); letter-spacing: .12em; font-family: var(--mono); }
.contact-item p { font-size: 14px; color: var(--muted); margin-top: 8px; }

/* ---------- 方案详情页 ---------- */
.detail-photo {
  border-radius: var(--radius); overflow: hidden; margin-bottom: 44px;
  box-shadow: var(--shadow); position: relative;
}
.detail-photo::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.25);
  background: linear-gradient(180deg, transparent 60%, rgba(4, 22, 43, .35));
}
.detail-photo img { width: 100%; max-height: 440px; object-fit: cover; display: block; }
.detail-section h2 {
  font-size: 25px; margin-bottom: 22px; display: flex; align-items: center; gap: 12px;
  letter-spacing: .6px;
}
.detail-section h2::before {
  content: ""; width: 4px; height: 24px; flex-shrink: 0; border-radius: 2px;
  background: linear-gradient(180deg, var(--primary), var(--cyan));
  box-shadow: 0 0 12px rgba(34, 211, 238, .55);
}
.detail-section p.lead { font-size: 15.5px; color: #34465c; }
.point-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; margin-top: 8px; }
.point-list li {
  position: relative; overflow: hidden;
  background: #fff; border: 1px solid rgba(0, 102, 204, .10);
  border-radius: 10px; padding: 20px 22px;
  transition: transform .25s, box-shadow .25s, border-color .25s;
}
.point-list li::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: linear-gradient(180deg, var(--primary), var(--cyan));
}
.point-list li:hover {
  transform: translateY(-3px); box-shadow: 0 12px 28px rgba(9, 40, 84, .10);
  border-color: rgba(0, 102, 204, .2);
}
.point-list h4 { font-size: 15.5px; margin-bottom: 6px; }
.point-list p { font-size: 13.5px; color: var(--muted); }
.flow-steps { display: flex; flex-wrap: wrap; gap: 10px; counter-reset: step; }
.flow-steps .step {
  flex: 1 1 130px; background: #fff; border: 1px solid rgba(0, 102, 204, .12);
  border-radius: 10px; padding: 18px 14px; text-align: center;
  font-size: 14px; font-weight: 600; position: relative;
  transition: all .25s;
}
.flow-steps .step:hover {
  border-color: rgba(0, 102, 204, .35); transform: translateY(-3px);
  box-shadow: 0 10px 24px rgba(0, 102, 204, .14);
}
.flow-steps .step::before {
  counter-increment: step; content: counter(step);
  display: block; width: 32px; height: 32px; margin: 0 auto 10px; border-radius: 8px;
  background: linear-gradient(145deg, var(--primary), #1f8fe0); color: #fff;
  font-size: 14px; line-height: 32px; font-family: var(--mono);
  box-shadow: 0 6px 16px rgba(0, 102, 204, .28);
}
.cta-band {
  position: relative; overflow: hidden;
  background: linear-gradient(110deg, #04162b 0%, #0a3d6d 55%, #0d6bb5 100%);
  color: #fff; border-radius: var(--radius); padding: 38px 42px;
  display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap;
  box-shadow: 0 20px 50px rgba(4, 30, 60, .28);
}
.cta-band::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(140, 210, 255, .14) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(140, 210, 255, .14) 1px, transparent 1px);
  background-size: 48px 48px;
  -webkit-mask-image: linear-gradient(100deg, rgba(0,0,0,.9), transparent 70%);
  mask-image: linear-gradient(100deg, rgba(0,0,0,.9), transparent 70%);
}
.cta-band > * { position: relative; z-index: 1; }
.cta-band h3 { font-size: 22px; letter-spacing: .5px; }
.cta-band p { color: #cfe4f7; margin-top: 6px; }
.cta-band .phone {
  font-size: 27px; font-weight: 800; letter-spacing: .04em; font-family: var(--mono);
  color: #fff; text-shadow: 0 0 18px rgba(34, 211, 238, .5);
}
.cta-band .btn-white {
  background: #fff; color: var(--primary); padding: 12px 34px; border-radius: 6px;
  font-weight: 700; display: inline-block; transition: transform .2s, box-shadow .2s;
  box-shadow: 0 10px 26px rgba(0, 0, 0, .18);
}
.cta-band .btn-white:hover {
  transform: translateY(-2px); box-shadow: 0 14px 32px rgba(0, 0, 0, .24);
}

/* ---------- 首页 AI 安全横幅 ---------- */
.ai-band {
  position: relative; overflow: hidden;
  background: #04121f; color: #fff;
  padding: 62px 0;
  border-top: 1px solid rgba(34, 211, 238, .16);
  border-bottom: 1px solid rgba(34, 211, 238, .16);
}
.ai-band-bg {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; opacity: .30; filter: saturate(.65) brightness(.75);
}
.ai-band::before {
  content: ""; position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background:
    radial-gradient(900px 420px at 88% 12%, rgba(34, 211, 238, .20), transparent 62%),
    linear-gradient(100deg, rgba(4, 18, 31, .97) 0%, rgba(4, 26, 48, .93) 48%, rgba(6, 44, 78, .62) 100%);
}
.ai-band::after {
  content: ""; position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(140, 210, 255, .09) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(140, 210, 255, .09) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: linear-gradient(105deg, rgba(0,0,0,.85), transparent 75%);
  mask-image: linear-gradient(105deg, rgba(0,0,0,.85), transparent 75%);
}
.ai-band-inner {
  position: relative; z-index: 3;
  display: grid; grid-template-columns: 1.35fr .85fr; gap: 46px; align-items: center;
}
.ai-band .fx-canvas { z-index: 2; opacity: .95; }
.ai-eyebrow {
  font-family: var(--mono); font-size: 12px; letter-spacing: .22em;
  color: var(--cyan); text-transform: uppercase; margin-bottom: 12px;
}
.ai-band-copy h2 {
  font-size: 36px; font-weight: 700; letter-spacing: 1.5px; line-height: 1.3; color: #fff;
  text-shadow: 0 2px 24px rgba(0, 0, 0, .55), 0 0 26px rgba(34, 211, 238, .22);
}
.ai-band-copy h2::after {
  content: ""; display: block; width: 62px; height: 3px; margin-top: 16px; border-radius: 2px;
  background: linear-gradient(90deg, var(--cyan), rgba(34, 211, 238, 0));
  box-shadow: 0 0 16px rgba(34, 211, 238, .7);
}
.ai-band-copy p {
  color: #b9d2e8; font-size: 15.5px; margin-top: 18px; max-width: 640px;
}
.ai-actions { display: flex; align-items: center; gap: 22px; flex-wrap: wrap; margin-top: 28px; }
.ai-btn {
  position: relative; overflow: hidden;
  display: inline-block; padding: 13px 30px; border-radius: 8px;
  font-weight: 700; color: #04121f; letter-spacing: .5px;
  background: linear-gradient(100deg, #22d3ee 0%, #38bdf8 55%, #2bb3e0 100%);
  box-shadow: 0 10px 30px rgba(34, 211, 238, .28);
  transition: transform .2s, box-shadow .2s;
}
.ai-btn::after {
  content: ""; position: absolute; top: 0; left: -60%; width: 45%; height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255, 255, 255, .55), transparent);
  transform: skewX(-18deg); transition: left .55s ease;
}
.ai-btn:hover { transform: translateY(-2px); box-shadow: 0 14px 36px rgba(34, 211, 238, .38); }
.ai-btn:hover::after { left: 130%; }
.ai-link {
  font-family: var(--mono); font-size: 14px; letter-spacing: .04em; color: #d6ebfa;
  border-bottom: 1px dashed rgba(34, 211, 238, .45); padding-bottom: 2px;
  transition: color .2s, border-color .2s;
}
.ai-link:hover { color: var(--cyan); border-color: var(--cyan); }
.ai-metrics {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px;
}
.ai-metric {
  background: rgba(10, 34, 58, .55);
  border: 1px solid rgba(34, 211, 238, .22);
  border-radius: 12px; padding: 18px 16px; text-align: center;
  backdrop-filter: blur(6px);
  transition: border-color .25s, transform .25s, box-shadow .25s;
}
.ai-metric:hover {
  border-color: rgba(34, 211, 238, .55); transform: translateY(-3px);
  box-shadow: 0 12px 28px rgba(0, 0, 0, .35);
}
.ai-metric strong {
  display: block; font-family: var(--mono); font-size: 30px; font-weight: 700;
  color: #fff; line-height: 1.15; letter-spacing: .02em;
  text-shadow: 0 0 20px rgba(34, 211, 238, .55);
}
.ai-metric strong span { font-size: 16px; color: var(--cyan); margin-left: 1px; }
.ai-metric > span {
  display: block; margin-top: 6px; font-size: 12.5px; color: #9fbdd6; letter-spacing: .08em;
}

/* ---------- 关于我们 ---------- */
.about-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 38px; align-items: start; }
.about-grid h3 { font-size: 20px; margin: 24px 0 10px; letter-spacing: .5px; }
.about-grid h3:first-child { margin-top: 0; }
.about-grid p { color: #34465c; font-size: 15px; margin-bottom: 10px; }
.about-side {
  position: relative; overflow: hidden;
  background: linear-gradient(180deg, #eef7ff 0%, #ffffff 100%);
  border: 1px solid rgba(0, 102, 204, .14);
  border-radius: var(--radius); padding: 30px;
  box-shadow: 0 10px 30px rgba(9, 40, 84, .06);
}
.about-side::before {
  content: ""; position: absolute; right: -30px; top: -30px; width: 120px; height: 120px;
  border-radius: 50%; background: radial-gradient(closest-side, rgba(34, 211, 238, .22), transparent);
}
.about-side h3 { font-size: 18px; margin-bottom: 16px; color: var(--primary-dark); letter-spacing: .5px; }
.about-side li {
  padding: 11px 0; border-bottom: 1px dashed rgba(0, 102, 204, .18); font-size: 14px;
  display: flex; justify-content: space-between; gap: 10px;
}
.about-side li:last-child { border-bottom: none; }
.about-side li .k { color: var(--muted); }
.adv-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.adv-item {
  position: relative; background: #fff; border: 1px solid rgba(0, 102, 204, .10);
  border-radius: var(--radius); padding: 28px 22px; text-align: center;
  transition: transform .3s, box-shadow .3s, border-color .3s;
}
.adv-item:hover {
  transform: translateY(-6px); box-shadow: var(--shadow-tech);
  border-color: rgba(0, 102, 204, .22);
}
.adv-item .ico {
  width: 56px; height: 56px; margin: 0 auto 16px; border-radius: 14px;
  background: linear-gradient(145deg, #eaf4ff, #ffffff);
  border: 1px solid rgba(0, 102, 204, .16);
  display: flex; align-items: center; justify-content: center;
  font-size: 26px; color: var(--primary);
  box-shadow: inset 0 1px 0 #fff, 0 6px 16px rgba(0, 102, 204, .12);
}
.adv-item h4 { font-size: 16px; margin-bottom: 6px; }
.adv-item p { font-size: 13px; color: var(--muted); }

/* ---------- 页脚 ---------- */
.site-footer {
  position: relative; overflow: hidden;
  background: #03101f; color: #a9bed4; margin-top: 0;
}
.site-footer::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(120, 190, 255, .055) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(120, 190, 255, .055) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0,0,0,.9), transparent 85%);
  mask-image: linear-gradient(180deg, rgba(0,0,0,.9), transparent 85%);
}
.site-footer::after {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(34,211,238,.5), rgba(0,102,204,.55), transparent);
}
.footer-main {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; padding: 58px 0 42px;
}
.footer-main h4 { color: #fff; font-size: 16px; margin-bottom: 16px; letter-spacing: .5px; }
.footer-main h4::after {
  content: ""; display: block; width: 26px; height: 2px; margin-top: 10px;
  background: linear-gradient(90deg, var(--cyan), transparent);
}
.footer-main p, .footer-main li { font-size: 13.5px; line-height: 2; }
.footer-main strong { color: #fff; font-family: var(--mono); letter-spacing: .04em; }
.footer-main a { transition: color .2s; }
.footer-main a:hover { color: #7fd8f5; text-decoration: none; }
.footer-links { display: grid; grid-template-columns: 1fr 1fr; gap: 2px 20px; }
.footer-bottom {
  position: relative; z-index: 1;
  border-top: 1px solid rgba(120, 190, 255, .12); padding: 18px 0;
  font-size: 12.5px; text-align: center; color: #7e93ab;
  font-family: var(--mono); letter-spacing: .02em;
}
.footer-bottom a:hover { color: #fff; text-decoration: underline; }
.footer-bottom a:hover { color: #7fd8f5; }

/* ---------- 滚动入场动画 ---------- */
.reveal { opacity: 0; transform: translateY(22px); }
.reveal.in {
  opacity: 1; transform: none;
  transition: opacity .7s cubic-bezier(.22,.61,.36,1), transform .7s cubic-bezier(.22,.61,.36,1);
}
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1 !important; transform: none !important; }
  .banner-fx::after { animation: none; }
  .banner-eyebrow::before { animation: none; }
  html { scroll-behavior: auto; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 1100px) {
  .main-nav a { padding: 8px 8px; font-size: 14px; }
}
@media (max-width: 992px) {
  .nav-toggle { display: flex; }
  .main-nav {
    display: none; position: absolute; top: var(--header-h); left: 0; right: 0;
    background: rgba(255,255,255,.98); backdrop-filter: blur(12px);
    flex-direction: column; align-items: stretch;
    padding: 10px 4%; border-bottom: 1px solid var(--line); box-shadow: var(--shadow);
  }
  .site-header.nav-open .main-nav { display: flex; }
  .main-nav a { padding: 12px 14px; border-radius: 8px; }
  .main-nav a::after { display: none; }
  .card-grid, .card-grid.four, .service-grid, .contact-wrap { grid-template-columns: repeat(2, 1fr); }
  .adv-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; }
  .footer-main { grid-template-columns: 1fr; gap: 28px; }
  .banner { min-height: 420px; }
  .banner-content { padding: 52px 0; }
  .banner-title { font-size: 38px; }
  .banner-slogan { font-size: 18px; }
  .page-hero h1 { font-size: 30px; }
  .ai-band { padding: 48px 0; }
  .ai-band-inner { grid-template-columns: 1fr; gap: 30px; }
  .ai-band-copy h2 { font-size: 28px; }
  .ai-metrics { grid-template-columns: repeat(4, 1fr); }
  .hot-layout { grid-template-columns: 1fr; }
  .hot-side { grid-template-rows: auto; grid-template-columns: repeat(2, 1fr); }
  .hot-side .card { flex-direction: column; }
  .hot-side .card-cover { width: 100%; height: auto; aspect-ratio: 16 / 10; border-right: 0; }
  .client-contact { grid-template-columns: 1fr; }
  .contact-phone { font-size: 26px; }
}
@media (max-width: 620px) {
  .card-grid, .card-grid.two, .card-grid.four, .service-grid, .contact-wrap,
  .adv-grid, .point-list { grid-template-columns: 1fr; }
  .banner { min-height: 360px; }
  .banner-title { font-size: 28px; letter-spacing: 1.5px; }
  .banner-slogan { font-size: 16px; }
  .banner-content { padding: 40px 0; }
  .section { padding: 54px 0; }
  .section-head h2 { font-size: 25px; }
  .section-head h2 .en { display: block; margin: 6px 0 0; font-size: 12px; }
  .brand-name { font-size: 14px; }
  .brand-sub { display: none; }
  .cta-band { padding: 28px 24px; }
  .cta-band .phone { font-size: 22px; }
  .ai-band { padding: 40px 0; }
  .ai-band-copy h2 { font-size: 23px; letter-spacing: 1px; }
  .ai-band-copy p { font-size: 14.5px; }
  .ai-metrics { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .ai-metric { padding: 14px 12px; }
  .ai-metric strong { font-size: 25px; }
  .ai-btn { display: block; text-align: center; padding: 13px 20px; }
  .section-head.left { align-items: flex-start; gap: 14px; }
  .hot-side { grid-template-columns: 1fr; }
  .hot-main .card-body { padding: 22px 22px 24px; }
  .hot-main .card-body h3 { font-size: 19px; }
  .client-panel, .contact-panel { padding: 26px 22px; }
  .contact-phone { font-size: 25px; }
}