/* ==========================================================================
   官网单页样式（白底简洁风）
   主色调：工业感纯蓝，无渐变
   ========================================================================== */

/* ---- 变量 ---- */
:root {
  --bg-0: #FFFFFF;
  --bg-1: #F6F9FC;
  --bg-2: #EEF3F9;
  --card: #FFFFFF;
  --line: #E4E9F2;
  --line-2: #EFF3F9;

  --txt: #0F172A;
  --muted: #5B6B84;
  --muted-2: #94A3B8;

  --c1: #2267E8;      /* 主蓝 */
  --c1-h: #1B56C9;    /* 主蓝 hover */
  --c1-soft: rgba(34, 103, 232, .09);

  --radius: 14px;
  --radius-lg: 20px;
  --shadow-1: 0 8px 24px rgba(15, 23, 42, .06);
  --shadow-2: 0 16px 44px rgba(15, 23, 42, .09);

  --container: 1200px;
  --nav-h: 68px;
  --ease: cubic-bezier(.2, .7, .2, 1);
}

/* ---- 重置 ---- */
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

/* ---- Lenis 平滑惯性滚动 ---- */
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }
.lenis.lenis-smooth [data-lenis-prevent] { overscroll-behavior: contain; }
.lenis.lenis-stopped { overflow: hidden; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, "Hiragino Sans GB", sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--txt);
  background: var(--bg-0);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, h5, h6 { margin: 0; font-weight: 700; line-height: 1.3; letter-spacing: .01em; }
p { margin: 0; }
input, textarea {
  font: inherit; color: inherit;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px 14px;
  width: 100%;
  outline: none;
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}
input:focus, textarea:focus { border-color: var(--c1); box-shadow: 0 0 0 3px var(--c1-soft); }

/* ---- 背景光晕（极淡，白底可用） ---- */
.bg-glow {
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(55% 45% at 85% 0%, rgba(34, 103, 232, .06), transparent 65%),
    radial-gradient(45% 40% at 5% 15%, rgba(34, 103, 232, .04), transparent 60%);
}

/* ---- 容器 ---- */
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* ---- 通用 ---- */
.eyebrow {
  display: inline-block;
  font-size: 12px; font-weight: 600; letter-spacing: .18em; text-transform: uppercase;
  color: var(--c1);
  background: var(--c1-soft);
  border: 1px solid rgba(34, 103, 232, .18);
  padding: 6px 12px; border-radius: 999px;
  margin-bottom: 18px;
}
.grad-text { color: var(--c1); }
.section { padding: 100px 0; position: relative; }
.section.alt { background: var(--bg-1); border-top: 1px solid var(--line-2); border-bottom: 1px solid var(--line-2); }
.section-head { max-width: 760px; margin: 0 auto 52px; text-align: center; }
.section-head h2 { font-size: 36px; margin: 4px 0 14px; }
.section-head p { color: var(--muted); font-size: 16px; }
.logo-icon {
    width: 32px;
    height: 32px;;
}

/* ---- 按钮（纯色，非渐变） ---- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 22px; border-radius: 10px;
  font-weight: 600; font-size: 15px;
  border: 1px solid transparent;
  transition: background .2s var(--ease), transform .2s var(--ease), box-shadow .2s var(--ease), border-color .2s var(--ease);
  white-space: nowrap;
}
.btn-primary {
  color: #fff; background: var(--c1);
  box-shadow: 0 6px 16px rgba(34, 103, 232, .22);
}
.btn-primary:hover { background: var(--c1-h); transform: translateY(-1px); }
.btn-ghost {
  color: var(--txt); border-color: var(--line);
  background: #fff;
}
.btn-ghost:hover { border-color: var(--c1); color: var(--c1); }
.btn .arrow { transition: transform .2s var(--ease); }
.btn .arrow.iconfont { display: inline-block; font-size: 15px; vertical-align: -1px; }
.btn:hover .arrow { transform: translateX(4px); }

/* ---- 导航 ---- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--nav-h);
  display: flex; align-items: center;
  background: rgba(255, 255, 255, .72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: background .3s var(--ease), border-color .3s var(--ease);
}
.nav.scrolled { background: rgba(255, 255, 255, .94); border-bottom-color: var(--line); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark { display: inline-flex; }
.brand-text { display: flex; flex-direction: column; line-height: 1; }
.brand-zh { font-size: 16px; font-weight: 700; color: var(--txt); }
.brand-en { font-size: 10px; letter-spacing: .18em; color: var(--muted); margin-top: 4px; }
.nav-links { display: flex; gap: 28px; }
.nav-links a {
  position: relative; font-size: 14px; color: var(--muted);
  padding: 6px 0; transition: color .2s var(--ease);
}
.nav-links a:hover { color: var(--txt); }
.nav-links a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -2px; height: 2px;
  background: var(--c1); transform: scaleX(0); transform-origin: center;
  transition: transform .25s var(--ease); border-radius: 2px;
}
.nav-links a:hover::after { transform: scaleX(1); }
.nav-toggle { display: none; background: none; border: 0; padding: 8px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--txt); margin: 4px 0; border-radius: 2px; transition: transform .25s var(--ease), opacity .25s var(--ease); }

/* ---- Hero ---- */
.hero { padding: calc(var(--nav-h) + 76px) 0 40px; position: relative; }
.hero-inner { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; }
.hero-text h1 { font-size: 52px; line-height: 1.18; margin: 8px 0 20px; }
.hero-text .lede { color: var(--muted); font-size: 17px; max-width: 560px; margin-bottom: 30px; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 26px; }
.hero-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.hero-tags li {
  font-size: 12px; color: var(--muted);
  padding: 5px 12px; border-radius: 999px;
  background: #fff;
  border: 1px solid var(--line);
}

/* hero 装饰 */
.hero-art { position: relative; height: 440px; }
.hero-orbit { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; }
.hero-mark {
  position: relative; z-index: 2;
  width: 216px; height: 216px;
  border-radius: 28px;
  box-shadow: 0 24px 60px rgba(34, 103, 232, .28);
  animation: float 6s ease-in-out infinite;
}
.hero-orbit .ring {
  position: absolute; border-radius: 50%;
  border: 1px dashed rgba(51, 65, 85, .16);
}
.hero-orbit .r1 { width: 310px; height: 310px; animation: spin 28s linear infinite; }
.hero-orbit .r2 { width: 410px; height: 410px; border-style: solid; border-color: rgba(34, 103, 232, .14); animation: spin 44s linear infinite reverse; }
.hero-orbit .r3 { width: 530px; height: 530px; border-color: rgba(34, 103, 232, .07); animation: spin 70s linear infinite; }
/* 技术栈标签：固定点位。HTML 中每个标签用 --dx/--dy 指定相对画布中心(50%,50%)的偏移 */
.hero-orbit .chip-cloud {
  position: absolute; inset: 0;
  z-index: 2; pointer-events: none;
  overflow: hidden;
}
.hero-orbit .chip {
  position: absolute; left: 50%; top: 50%;
  transform: translate(calc(-50% + var(--dx, 0px)), calc(-50% + var(--dy, 0px)));
  font-weight: 600; letter-spacing: .04em;
  color: #334155; border-radius: 999px;
  background: #fff; border: 1px solid #DCE5F0;
  box-shadow: 0 2px 10px rgba(51, 65, 85, .07);
  white-space: nowrap;
}
.hero-orbit .chip.lg {
  font-size: 13px; font-weight: 700; padding: 7px 14px;
  color: #1D4ED8; border-color: rgba(29, 78, 216, .35);
  box-shadow: 0 4px 14px rgba(29, 78, 216, .14);
}
.hero-orbit .chip.md { font-size: 11.5px; padding: 5px 11px; }
.hero-orbit .chip.sm {
  font-size: 10px; padding: 3px 9px;
  color: #64748B; border-color: #E6EAF2;
  box-shadow: none;
}
/* 缓动漂浮：关键帧必须带各自基准偏移(var(--dx)/var(--dy))，否则会顶掉固定坐标 */
.hero-orbit .chip {
  animation: chipFloat 6s ease-in-out infinite;
}
.hero-orbit .chip:nth-child(3n+1) { animation-delay: -2s; }
.hero-orbit .chip:nth-child(3n+2) { animation-delay: -4s; }
@keyframes chipFloat {
  0%, 100% { transform: translate(calc(-50% + var(--dx, 0px)), calc(-50% + var(--dy, 0px))); }
  50% { transform: translate(calc(-50% + var(--dx, 0px)), calc(-50% + var(--dy, 0px) - 6px)); }
}

@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }
@keyframes spin { to { transform: rotate(360deg); } }

/* 统计条 */
.hero-stats {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 20px; margin-top: 56px;
  padding: 30px 24px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-1);
}
.stat { text-align: center; }
.stat-num {
  color: var(--c1);
  font-weight: 800;
  font-size: 42px;
  line-height: 1;
  white-space: nowrap;   /* 数字与后缀永不拆行 */
}
.stat-label { margin-top: 8px; color: var(--muted); font-size: 14px; }

/* ---- 客户 LOGO 墙 ---- */
.clients { padding: 34px 0 70px; }
.marquee {
  overflow: hidden; position: relative;
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.marquee-track {
  display: flex; align-items: center; gap: 60px;
  width: max-content;
  animation: marquee 40s linear infinite;
}
.marquee-track img {
  height: 58px; width: auto; opacity: .8;
  transition: opacity .25s var(--ease);
}
.marquee-track img:hover { opacity: 1; }
@keyframes marquee { to { transform: translateX(-50%); } }
@media (max-width: 1024px) {
  .marquee-track { gap: 48px; }
  .marquee-track img { height: 50px; }
}
@media (max-width: 720px) {
  .marquee-track { gap: 36px; }
  .marquee-track img { height: 40px; }
}

/* ---- 通用 grid ---- */
.grid { display: grid; gap: 24px; }

/* ---- 服务卡片 ---- */
.services { grid-template-columns: repeat(3, 1fr); }
.card {
  position: relative;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 26px;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-1); border-color: #C9D7EE; }
.card-icon {
  width: 52px; height: 52px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  background: var(--c1-soft);
  color: var(--c1);
  margin-bottom: 16px;
}
.card h3 { font-size: 18px; margin-bottom: 8px; }
.card p { color: var(--muted); font-size: 14.5px; }
/* 服务卡片图标（icon-img PNG 自带蓝色圆角底） */
.service-icon {
  width: 64px; height: 64px;
  display: block; margin-bottom: 16px;
  border-radius: 14px;
}
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.tags li {
  font-size: 12px; color: var(--muted);
  padding: 4px 10px; border-radius: 6px;
  background: var(--bg-1);
  border: 1px solid var(--line-2);
}

/* ---- 核心优势 ---- */
.advantages { grid-template-columns: repeat(2, 1fr); gap: 24px; }
.adv {
  padding: 30px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
}
.adv-num {
  font-size: 14px; font-weight: 700; letter-spacing: .08em;
  color: var(--c1);
  background: var(--c1-soft);
  padding: 4px 10px; border-radius: 6px;
  display: inline-block; margin-bottom: 16px;
}
.adv h3 { font-size: 19px; margin-bottom: 8px; }
.adv p { color: var(--muted); font-size: 14.5px; }

/* ---- 流程时间线 ---- */
.timeline {
  display: grid; grid-template-columns: repeat(5, 1fr);
  gap: 18px; position: relative;
}
.timeline::before {
  content: ""; position: absolute; top: 23px; left: 8%; right: 8%; height: 2px;
  background: #D6E1F5;
}
.timeline li { position: relative; text-align: center; padding: 0 8px; }
.timeline .dot {
  display: inline-flex; align-items: center; justify-content: center;
  width: 46px; height: 46px; border-radius: 50%;
  background: var(--c1); color: #fff; font-weight: 700; font-size: 17px;
  margin-bottom: 16px; position: relative; z-index: 1;
  box-shadow: 0 0 0 4px #fff, 0 8px 18px rgba(34, 103, 232, .2);
}
.timeline h4 { font-size: 16px; margin-bottom: 8px; }
.timeline p { color: var(--muted); font-size: 13.5px; }

/* ---- 行业方案 ---- */
.solutions { grid-template-columns: repeat(2, 1fr); }
.sol {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #fff;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease);
}
.sol:hover { transform: translateY(-3px); box-shadow: var(--shadow-1); }
.sol-cover {
  height: 220px;
  background-size: cover; background-position: center;
}
.sol-body { padding: 22px 24px 26px; }
.sol-tag {
  display: inline-block; font-size: 12px; font-weight: 600;
  color: var(--c1);
  background: var(--c1-soft);
  padding: 4px 10px; border-radius: 999px; margin-bottom: 12px;
}
.sol h3 { font-size: 19px; margin-bottom: 8px; }
.sol p { color: var(--muted); font-size: 14.5px; }

/* ---- 案例 ---- */
.cases { grid-template-columns: repeat(3, 1fr); }
.case {
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: #fff;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease);
}
.case:hover { transform: translateY(-3px); box-shadow: var(--shadow-1); }
.case-img {
  height: 210px;
  background-size: cover; background-position: center;
  transition: transform .5s var(--ease);
}
.case:hover .case-img { transform: scale(1.04); }
.case-body { padding: 16px 20px 20px; }
.case-cat {
  display: inline-block; font-size: 12px; font-weight: 600;
  color: var(--c1);
  background: var(--c1-soft);
  padding: 3px 10px; border-radius: 999px; margin-bottom: 10px;
}
.case h4 { font-size: 15.5px; }

/* ---- 承诺 ---- */
.promises { grid-template-columns: repeat(3, 1fr); }
.promise {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.promise:hover { border-color: #AEC6EC; box-shadow: var(--shadow-1); }
.promise .ico {
  display: inline-flex; align-items: center; justify-content: center;
  width: 30px; height: 30px; border-radius: 8px;
  background: var(--c1); color: #fff; font-weight: 700; font-size: 15px;
  margin-bottom: 12px;
}
.promise .ico.iconfont { font-weight: 400; font-size: 16px; line-height: 1; }
.promise h4 { font-size: 16px; margin-bottom: 6px; }
.promise p { color: var(--muted); font-size: 14px; }

/* ---- About ---- */
.about { display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: center; }
.about-text h2 { font-size: 36px; margin: 4px 0 16px; }
.about-text p { color: var(--muted); margin-bottom: 14px; font-size: 15.5px; }
.about-stats { display: flex; gap: 40px; margin-top: 28px; }
.about-stats > div { display: flex; flex-direction: column; }
.about-stats strong { font-size: 32px; font-weight: 800; color: var(--c1); line-height: 1.2; }
.about-stats span { color: var(--muted); font-size: 13px; margin-top: 2px; }
.about-art { position: relative; }
.about-art img {
  width: 100%; border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-1);
}
.about-floating {
  position: absolute; bottom: -16px; left: 20px;
  background: var(--c1);
  color: #fff; font-weight: 600; letter-spacing: .12em; font-size: 12px;
  padding: 9px 16px; border-radius: 999px;
  box-shadow: 0 12px 24px rgba(34, 103, 232, .28);
}

/* ---- CTA ---- */
.cta { background: #F0F6FF; border-top: 1px solid var(--line-2); }
.cta-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.cta-text h2 { font-size: 38px; margin: 4px 0 16px; }
.cta-text p { color: var(--muted); margin-bottom: 24px; font-size: 16px; }
.contact-info { display: flex; flex-direction: column; gap: 12px; }
.contact-info li {
  display: flex; align-items: center; gap: 12px;
  color: var(--muted); font-size: 15px;
}
.ci-ico {
  width: 36px; height: 36px; border-radius: 10px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--c1-soft); color: var(--c1);
  font-size: 15px;
}
.ci-ico.iconfont { font-size: 18px; line-height: 1; }
.cta-form {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 26px;
  display: flex; flex-direction: column; gap: 14px;
  box-shadow: var(--shadow-1);
}
.cta-form label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--muted); }
.cta-form .form-tip { font-size: 12px; color: var(--muted-2); margin-top: 6px; }
.cta-form .btn { align-self: flex-start; }

/* ---- Footer ---- */
.footer { background: #101828; padding: 60px 0 24px; }
.footer-inner { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; }
.footer .brand-zh { color: #fff; }
.footer .brand-en { color: #8A98B5; }
.footer-col h5 { font-size: 14px; margin-bottom: 14px; color: #fff; }
.footer-col a { display: block; color: #94A3B8; font-size: 14px; margin-bottom: 8px; transition: color .2s var(--ease); }
.footer-col a:hover { color: #fff; }
.footer-col p { color: #94A3B8; font-size: 14px; margin: 0 0 8px; }
.footer-desc { color: #94A3B8; font-size: 14px; margin-top: 12px; max-width: 280px; }
.footer-bottom {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 6px;
  margin-top: 40px; padding-top: 18px; border-top: 1px solid rgba(255, 255, 255, .1);
  color: #7C8AA6; font-size: 12.5px;
}
.footer-bottom a { color: #7C8AA6; text-decoration: none; transition: color .2s var(--ease); }
.footer-bottom a:hover { color: #fff; }

/* ---- 滚动显现动画 ---- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }

/* ---- 响应式 ---- */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-art { height: 340px; order: -1; }
  .hero-mark { width: 176px; height: 176px; }
  .hero-orbit .r1 { width: 260px; height: 260px; }
  .hero-orbit .r2 { width: 340px; height: 340px; }
  .hero-orbit .r3 { width: 440px; height: 440px; }
  .hero-text h1 { font-size: 42px; }
  .services { grid-template-columns: repeat(2, 1fr); }
  .advantages { grid-template-columns: 1fr; }
  .timeline { grid-template-columns: repeat(2, 1fr); gap: 28px 18px; }
  .timeline::before { display: none; }
  .solutions { grid-template-columns: 1fr; }
  .cases { grid-template-columns: repeat(2, 1fr); }
  .promises { grid-template-columns: repeat(2, 1fr); }
  .about { grid-template-columns: 1fr; }
  .cta-inner { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .nav-links { display: none; }
  .nav-cta { display: none; }
  .nav-toggle { display: block; }
  .nav-links.open {
    display: flex; flex-direction: column;
    position: absolute; top: var(--nav-h); left: 0; right: 0;
    background: #fff;
    padding: 16px 24px 22px;
    border-bottom: 1px solid var(--line);
    gap: 14px;
    box-shadow: var(--shadow-1);
  }
  .nav-links.open a { padding: 8px 0; }
  .section { padding: 72px 0; }
  .section-head h2 { font-size: 28px; }
  .hero-text h1 { font-size: 32px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .stat-num { font-size: 30px; }
  .services, .cases, .promises { grid-template-columns: 1fr; }
  .about-stats { gap: 22px; }
  .footer-inner { grid-template-columns: 1fr; gap: 26px; }
  /* 页脚精简：移动端只留品牌 + 备案 */
  .footer-col:nth-child(n + 2) { display: none; }
  .footer-bottom { margin-top: 24px; }

  /* 卡片头部元素居中 */
  .service .service-icon { margin: 0 auto 16px; }
  .service h3 { text-align: center; }
  .adv-num { display: block; width: max-content; margin: 0 auto 16px; }
  .promise .ico { display: flex; margin: 0 auto 12px; }
  .promise h4 { text-align: center; }
  .promise p { text-align: center; }
}

/* ---- 小屏(<560)精修 ---- */
@media (max-width: 560px) {
  .container { padding: 0 16px; }
  .section { padding: 56px 0; }
  .section-head { margin-bottom: 36px; }
  .section-head h2 { font-size: 24px; line-height: 1.3; }
  .section-head p { font-size: 14.5px; }

  /* Hero */
  .hero { padding: calc(var(--nav-h) + 28px) 0 24px; }
  .hero-art { height: 280px; overflow: hidden; }
  .hero-orbit .r1 { width: min(300px, 92vw); height: min(300px, 92vw); }
  .hero-orbit .r2 { width: min(220px, 70vw); height: min(220px, 70vw); }
  .term-zone { max-width: 100%; }
  .term { width: min(300px, 92%); }
  .term-body { height: 130px; font-size: 10.5px; padding: 10px 12px 4px; }
  .term-title { font-size: 10px; }

  .hero-text h1 { font-size: 26px; line-height: 1.25; margin-bottom: 14px; }
  .hero-text .lede { font-size: 14.5px; max-width: 100%; margin-bottom: 22px; }
  .hero-cta { gap: 10px; margin-bottom: 20px; flex-wrap: nowrap; }
  .hero-cta .btn { flex: 1 1 0; min-width: 0; padding: 12px 8px; font-size: 14px; justify-content: center; }
  .hero-tags li { font-size: 11.5px; padding: 4px 10px; }

  /* Hero 统计 */
  .hero-stats { margin-top: 32px; padding: 22px 14px; gap: 18px 10px; }
  .stat-num { font-size: 24px; }
  .stat-label { font-size: 12px; margin-top: 6px; }

  /* Clients */
  .clients { padding: 28px 0 56px; }

  /* 卡片 / 通用栅格 */
  .card { padding: 22px; }
  .card h3 { font-size: 17px; }
  .adv { padding: 22px; }
  .adv h3 { font-size: 17px; }
  .sol-cover { height: 180px; }
  .case-img { height: 180px; }
  .promise { padding: 18px; }
  .promise h4 { font-size: 15px; }

  /* 时间线：序号 + 标题左右排列（序号缩小为徽章） */
  .timeline { grid-template-columns: 1fr; gap: 22px; }
  .timeline li {
    display: grid; grid-template-columns: auto 1fr;
    column-gap: 12px; row-gap: 6px;
    align-items: center; text-align: left; padding: 0;
  }
  .timeline .dot { margin: 0; width: 22px; height: 22px; font-size: 12px; box-shadow: none; }
  .timeline h4 { margin: 0; font-size: 16px; line-height: 1.4; }
  .timeline p { grid-column: 2; margin: 0; font-size: 13.5px; line-height: 1.6; }

  /* About */
  .about-text h2 { font-size: 24px; }
  .about-text p { font-size: 14.5px; }
  .about-stats { flex-wrap: nowrap; gap: 8px; }
  .about-stats > div { flex: 1 1 0; min-width: 0; align-items: center; text-align: center; }
  .about-stats strong { font-size: clamp(20px, 6.5vw, 26px); white-space: nowrap; }
  .about-stats span { font-size: 11.5px; white-space: nowrap; }
  .about-floating { left: 14px; bottom: -10px; font-size: 10.5px; padding: 7px 12px; letter-spacing: .1em; }

  /* CTA */
  .cta-text h2 { font-size: 24px; }
  .cta-text p { font-size: 14.5px; margin-bottom: 18px; }
  .contact-info li { font-size: 13.5px; gap: 10px; }
  .contact-info .ci-ico { width: 32px; height: 32px; font-size: 14px; }
  .cta-form { padding: 22px 18px; gap: 12px; }
  .cta-form .btn { width: 100%; align-self: stretch; justify-content: center; }

  /* Footer */
  .footer { padding: 48px 0 22px; }
  .footer-col h5 { font-size: 13px; margin-bottom: 12px; }
  .footer-col a, .footer-col p { font-size: 13px; }
  .footer-desc { font-size: 13px; max-width: 100%; }
  .footer-bottom { font-size: 11.5px; gap: 8px; }

  /* 导航菜单：移动端可滚动 */
  .nav-links.open { max-height: calc(100vh - var(--nav-h)); overflow-y: auto; }

  /* 防止溢出 */
  img, svg, canvas { max-width: 100%; }
}

/* ==========================================================================
   技术动效增强：终端 / 雷达 / HUD / 粒子网络 / 滚动进度
   ========================================================================== */

/* 顶部滚动进度条 */
.scroll-progress {
  position: fixed; top: 0; left: 0; right: 0; height: 3px; z-index: 300;
  background: var(--c1);
  transform-origin: 0 50%;
  transform: scaleX(0);
  transition: transform .1s linear;
}

/* 粒子网络背景 */
.hero { position: relative; }
.hero-net { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; }
.hero-inner, .hero-stats { position: relative; z-index: 1; }

/* Hero 装饰区布局 */
.hero-art { height: 500px; }
.hero-orbit { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; z-index: 1; }
.hero-orbit .ring {
  position: absolute; border-radius: 50%;
  border: 1px dashed rgba(51, 65, 85, .15);
}
.hero-orbit .r1 { width: 428px; height: 428px; }
.hero-orbit .r2 { width: 330px; height: 330px; border-style: solid; border-color: rgba(34, 103, 232, .10); }
.hero-orbit .r3 { width: 500px; height: 500px; border-color: rgba(34, 103, 232, .06); }
.hero-orbit .r1 { animation: spin 34s linear infinite; }
.hero-orbit .r3 { animation: spin 80s linear infinite reverse; }

/* 中央代码终端 */
.term-zone { position: relative; z-index: 3; animation: float 6s ease-in-out infinite; }
.term {
  width: 300px;
  border-radius: 16px;
  overflow: hidden;
  background: #0F172A;
  border: 1px solid #1E293B;
  box-shadow: 0 30px 80px rgba(15, 23, 42, .30), 0 10px 30px rgba(34, 103, 232, .08);
}
.term-bar {
  display: flex; align-items: center; gap: 7px;
  padding: 11px 13px;
  background: #16203A;
  border-bottom: 1px solid rgba(255, 255, 255, .06);
}
.term-bar .dot { width: 11px; height: 11px; border-radius: 50%; }
.term-bar .d-r { background: #F87171; }
.term-bar .d-y { background: #FACC15; }
.term-bar .d-g { background: #4ADE80; }
.term-title {
  margin-left: 8px; color: #7C8AA6;
  font-size: 11px; letter-spacing: .04em;
  font-family: ui-monospace, Consolas, "Courier New", monospace;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.term-live {
  margin-left: auto; display: inline-flex; align-items: center; gap: 6px;
  color: #4ADE80; font-size: 10px; font-weight: 700; letter-spacing: .12em;
}
.pulse-dot {
  width: 7px; height: 7px; border-radius: 50%; background: #4ADE80;
  animation: livePulse 1.6s ease-in-out infinite;
}
.term-body {
  height: 180px; overflow: hidden; box-sizing: content-box;
  padding: 13px 16px 6px;
  font-family: ui-monospace, Consolas, "SF Mono", "Courier New", monospace;
  font-size: 12px; line-height: 1.8;
  color: #A8B3C7; text-align: left;
}
.term-body .tl { white-space: pre; word-break: keep-all; }
.tl-cmd { color: #7DD3FC; }
.tl-ok  { color: #94A3B8; }
.tl-good { color: #86EFAC; }
.tl-json { color: #FBBF77; }
.cur {
  display: inline-block; width: 7px; height: 14px;
  margin-left: 2px; vertical-align: -2px;
  background: #60A5FA;
  animation: blinkCur 1s steps(1) infinite;
}
@keyframes blinkCur { 50% { opacity: 0; } }
@keyframes livePulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(74, 222, 128, .55); }
  50% { box-shadow: 0 0 0 5px rgba(74, 222, 128, 0); }
}

/* 雷达扫描：置于终端下方留白区 */
.radar {
  position: absolute; top: 100%; left: -14px; margin-top: 12px; z-index: 4;
  width: 80px; height: 80px; border-radius: 50%;
  background: #fff; border: 1px solid var(--line);
  box-shadow: var(--shadow-1);
}
.radar-ring { position: absolute; border-radius: 50%; border: 1px solid rgba(34, 103, 232, .22); }
.radar-ring.rr1 { inset: 20%; }
.radar-ring.rr2 { inset: 44%; }
.radar-sweep {
  position: absolute; inset: 7px; border-radius: 50%; overflow: hidden;
  background: conic-gradient(from 0deg, rgba(34, 103, 232, .28), rgba(34, 103, 232, 0) 70deg);
  animation: spin 2.6s linear infinite;
}
.radar-sweep::after {
  content: ""; position: absolute; inset: 0; border-radius: 50%;
  background: radial-gradient(circle at 50% 50%, transparent 34%, #fff 35.5%, transparent 36%);
}
.radar-blip { position: absolute; width: 5px; height: 5px; border-radius: 50%; background: var(--c1); }
.radar-blip.b1 { top: 26%; left: 62%; animation: blipPulse 1.8s ease-in-out infinite; }
.radar-blip.b2 { top: 66%; left: 30%; animation: blipPulse 1.8s ease-in-out .5s infinite; }
@keyframes blipPulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(2.1); opacity: .45; }
}

/* 浮动数据面板 */
.hud {
  position: absolute; z-index: 3;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: var(--shadow-1);
  padding: 8px 11px;
  min-width: 130px;
}
.hud-traffic { left: 2px; top: 22%; }
.hud-lat { right: 0; bottom: 14%; }
.hud-title { display: block; font-size: 10px; letter-spacing: .16em; color: var(--muted-2); margin-bottom: 5px; }
.hud-main { display: flex; align-items: baseline; gap: 5px; }
.hud-main b { font-size: 21px; font-weight: 800; color: var(--c1); line-height: 1; font-variant-numeric: tabular-nums; }
.hud-main i { font-style: normal; font-size: 10.5px; color: var(--muted); }
.hud-bars {
  display: flex; align-items: flex-end; gap: 3px;
  height: 20px; margin-top: 6px;
}
.hud-bars i {
  display: block; flex: 1; min-width: 3px;
  height: 30%;
  border-radius: 2px;
  background: var(--c1);
  transition: height .7s var(--ease);
}
.hud-spark { width: 100%; height: 30px; margin-top: 6px; display: block; overflow: visible; }
.hud-spark polyline {
  fill: none; stroke: var(--c1); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round;
}

/* 表单（留资接口） */
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.cta-form label span em { color: #E5484D; font-style: normal; }
.cta-form textarea { resize: vertical; min-height: 74px; }
.form-status {
  margin: 0; padding: 10px 14px; border-radius: 10px;
  font-size: 13.5px; line-height: 1.5;
  border: 1px solid transparent;
}
.form-status.ok { color: #166534; background: #F0FDF4; border-color: #BBF7D0; }
.form-status.err { color: #B42318; background: #FEF3F2; border-color: #FECDCA; }
.cta-form .btn[disabled] { opacity: .65; cursor: default; transform: none; }

/* 卡片 3D 倾斜跟随 */
.tilt3d { transform-style: preserve-3d; will-change: transform; }

/* 响应式补充 */
@media (max-width: 1024px) {
  .hero-art { height: 400px; }
  .hero-orbit .r1 { width: 380px; height: 380px; }
  .hero-orbit .r2 { width: 290px; height: 290px; }
  .hero-orbit .r3 { width: 460px; height: 460px; }
  .term { width: 300px; }
  .term-body { height: 150px; font-size: 11.5px; }
  .hud { display: none; }
  .radar { display: none; }
  /* 平板高度为 400，垂直偏移等比缩小以贴合终端 */
  .hero-orbit .chip {
    transform: translate(calc(-50% + var(--dx, 0px)), calc(-50% + var(--dy, 0px) * .82));
  }
  @keyframes chipFloat {
    0%, 100% { transform: translate(calc(-50% + var(--dx, 0px)), calc(-50% + var(--dy, 0px) * .82)); }
    50% { transform: translate(calc(-50% + var(--dx, 0px)), calc(-50% + var(--dy, 0px) * .82 - 6px)); }
  }
}
@media (max-width: 720px) {
  /* 手机端隐藏整个 hero 装饰区（终端 zsh 动画/光环等），标题区直接展示 */
  .hero-art { display: none; }
  .form-row { grid-template-columns: 1fr; gap: 14px; }
}

/* ---- 右上角 Toast 提示 ---- */
.toast-wrap {
  position: fixed;
  top: 18px;
  right: 18px;
  z-index: 1300;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
  max-width: calc(100vw - 36px);
  pointer-events: none;
}
.toast {
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 10px;
  background: #fff;
  border: 1px solid var(--line);
  border-left: 3px solid #22C55E;
  border-radius: 12px;
  box-shadow: 0 12px 32px rgba(15, 23, 42, .14);
  padding: 11px 10px 11px 13px;
  min-width: 200px;
  max-width: 340px;
  opacity: 0;
  transform: translateX(26px);
  transition: opacity .3s var(--ease), transform .3s var(--ease);
}
.toast.toast-show { opacity: 1; transform: none; }
.toast.toast-hide { opacity: 0; transform: translateX(26px); }
.toast-ico {
  flex: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #22C55E;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
}
.toast-ico.iconfont { font-size: 13px; line-height: 1; }
.toast-msg {
  font-size: 14px;
  font-weight: 600;
  color: var(--txt);
  line-height: 1.35;
}
.toast-msg small {
  display: block;
  margin-top: 2px;
  font-size: 12px;
  font-weight: 400;
  color: var(--muted);
}
.toast-close {
  flex: none;
  width: 24px;
  height: 24px;
  margin-left: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  border: none;
  border-radius: 7px;
  background: transparent;
  color: var(--muted-2);
  transition: background .2s, color .2s;
}
.toast-close:hover { background: #F1F5F9; color: var(--txt); }
@media (max-width: 720px) {
  .toast-wrap { right: 12px; top: 12px; }
  .toast { min-width: 0; max-width: 100%; }
}

/* ---- 自定义鼠标光标（仅鼠标设备生效） ---- */
html.custom-cursor,
html.custom-cursor * { cursor: none !important; }
html.custom-cursor input,
html.custom-cursor textarea,
html.custom-cursor select { cursor: text !important; }
.cursor-dot,
.cursor-ring {
  position: fixed;
  left: 0;
  top: 0;
  pointer-events: none;
  border-radius: 50%;
  z-index: 1600;
  opacity: 0;
  transform: translate(-50%, -50%);
  will-change: transform;
  transition: opacity .3s ease, width .2s ease, height .2s ease,
              background-color .2s ease, border-color .2s ease;
}
.cursor-dot {
  width: 7px;
  height: 7px;
  background: var(--c1);
}
.cursor-ring {
  width: 36px;
  height: 36px;
  border: 1.5px solid rgba(34, 103, 232, .4);
}
.cursor-ring.is-grow {
  width: 56px;
  height: 56px;
  border-color: rgba(34, 103, 232, .9);
  background: rgba(34, 103, 232, .05);
}
.cursor-ring.is-down {
  width: 28px;
  height: 28px;
}

.logo-icon {
    width: 32px;
    height: 32px;;
}