/* 正逸科技 justee.cn — 官网样式 */
:root {
  --ink: #0b1220;
  --ink-2: #1c2536;
  --text: #2a3346;
  --muted: #5e6a80;
  --line: #e4e8f0;
  --bg: #ffffff;
  --bg-soft: #f5f7fb;
  --primary: #2f5bff;
  --primary-ink: #1b3fd6;
  --accent: #12b5a0;
  --warm: #ff8a3d;
  --edu: #7a5cff;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 10px 30px -12px rgba(15, 30, 80, .18);
  --shadow-lg: 0 30px 60px -20px rgba(15, 30, 80, .28);
  --max: 1200px;
  --font: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { color: var(--ink); margin: 0; line-height: 1.3; font-weight: 700; }
p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }

.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 24px; }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 16px; top: 16px; z-index: 100; background: #fff; padding: 8px 12px; border-radius: 8px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .82);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s, background .2s;
}
.site-header.scrolled { border-bottom-color: var(--line); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; color: var(--ink); }
.brand-mark {
  width: 34px; height: 34px; border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: grid; place-items: center; color: #fff; font-size: 17px; font-weight: 800;
  box-shadow: 0 6px 16px -6px rgba(47, 91, 255, .6);
}
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text b { font-size: 17px; letter-spacing: .5px; }
.brand-text small { font-size: 11px; color: var(--muted); font-weight: 500; letter-spacing: 2px; }
.nav-links { display: flex; gap: 6px; align-items: center; }
.nav-links a { padding: 8px 14px; border-radius: 999px; font-size: 15px; color: var(--ink-2); transition: background .15s, color .15s; }
.nav-links a:hover { background: var(--bg-soft); color: var(--primary); }
.nav-links .btn { margin-left: 8px; }
.nav-toggle { display: none; background: none; border: 0; padding: 8px; cursor: pointer; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--ink); margin: 5px 0; border-radius: 2px; transition: transform .2s, opacity .2s; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 22px; border-radius: 999px; font-weight: 600; font-size: 15px;
  border: 1px solid transparent; cursor: pointer; transition: transform .15s, box-shadow .15s, background .15s;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 10px 24px -10px rgba(47, 91, 255, .7); }
.btn-primary:hover { background: var(--primary-ink); }
.btn-ghost { background: #fff; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { border-color: #c9d1e2; }
.btn-sm { padding: 8px 16px; font-size: 14px; }
.btn-light { background: rgba(255,255,255,.12); color: #fff; border-color: rgba(255,255,255,.28); }
.btn-light:hover { background: rgba(255,255,255,.2); }

/* ---------- Hero ---------- */
.hero { position: relative; overflow: hidden; padding: 96px 0 88px; background: radial-gradient(1200px 500px at 80% -10%, rgba(47,91,255,.12), transparent 60%), radial-gradient(900px 420px at -10% 30%, rgba(18,181,160,.10), transparent 60%); }
.hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: center; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 600; color: var(--primary);
  background: rgba(47, 91, 255, .08); border: 1px solid rgba(47, 91, 255, .18);
  padding: 6px 14px; border-radius: 999px; letter-spacing: .5px;
}
.eyebrow .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 4px rgba(18,181,160,.18); }
.hero h1 { font-size: clamp(34px, 5vw, 58px); margin: 22px 0 20px; letter-spacing: -.5px; }
.grad { background: linear-gradient(90deg, var(--primary), var(--accent)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero .lead { font-size: 18px; color: var(--muted); max-width: 560px; }
.hero-cta { display: flex; gap: 12px; margin-top: 32px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 20px 32px; margin-top: 44px; flex-wrap: wrap; }
.hero-stats div b { display: block; font-size: 28px; color: var(--ink); font-weight: 800; }
.hero-stats div span { font-size: 13px; color: var(--muted); }

/* Hero visual: agent console */
.console {
  background: #0d1424; border-radius: 20px; padding: 18px; color: #c9d4ee;
  box-shadow: var(--shadow-lg); position: relative;
  font-size: 13.5px; line-height: 1.6;
}
.console-top { display: flex; gap: 6px; margin-bottom: 14px; align-items: center; }
.console-top i { width: 10px; height: 10px; border-radius: 50%; background: #ff5f57; }
.console-top i:nth-child(2) { background: #febc2e; }
.console-top i:nth-child(3) { background: #28c840; }
.console-top span { margin-left: 10px; font-size: 12px; color: #7d8bb0; }
.msg { padding: 10px 12px; border-radius: 12px; margin-bottom: 10px; max-width: 92%; }
.msg.user { background: #1d2a47; margin-left: auto; color: #e3e9fb; }
.msg.agent { background: #121c33; border: 1px solid #22315a; }
.msg .tag { display: inline-block; font-size: 11px; padding: 1px 8px; border-radius: 6px; margin-right: 6px; background: rgba(18,181,160,.16); color: #4fe0c9; }
.msg .tag.blue { background: rgba(47,91,255,.2); color: #8ea9ff; }
.msg .tag.orange { background: rgba(255,138,61,.18); color: #ffb07a; }
.tool-row { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 8px; }
.tool-row span { font-size: 11.5px; padding: 3px 9px; border-radius: 999px; border: 1px solid #2a3a66; color: #9fb0da; }
.typing::after { content: "▋"; animation: blink 1s steps(1) infinite; color: #4fe0c9; margin-left: 2px; }
@keyframes blink { 50% { opacity: 0; } }
.float-card {
  position: absolute; background: #fff; color: var(--ink); border-radius: 14px; padding: 12px 14px;
  box-shadow: var(--shadow); font-size: 13px; display: flex; gap: 10px; align-items: center;
}
.float-card .ic { width: 32px; height: 32px; border-radius: 9px; display: grid; place-items: center; color: #fff; font-weight: 700; flex: none; }
.float-card small { display: block; color: var(--muted); font-size: 11.5px; }
.fc-1 { left: -28px; bottom: -26px; animation: float 6s ease-in-out infinite; }
.fc-2 { right: -20px; top: -22px; animation: float 7s ease-in-out infinite reverse; }
@keyframes float { 50% { transform: translateY(-8px); } }

/* ---------- Sections ---------- */
section { padding: 96px 0; }
.section-soft { background: var(--bg-soft); }
.section-head { max-width: 720px; margin-bottom: 52px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.kicker { font-size: 13px; font-weight: 700; color: var(--primary); letter-spacing: 3px; text-transform: uppercase; }
.section-head h2 { font-size: clamp(28px, 3.4vw, 40px); margin: 10px 0 14px; letter-spacing: -.3px; }
.section-head p { color: var(--muted); font-size: 17px; }

/* Services */
.services { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.svc {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px 24px;
  transition: transform .2s, box-shadow .2s, border-color .2s;
}
.svc:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: transparent; }
.svc-ic { width: 48px; height: 48px; border-radius: 14px; display: grid; place-items: center; margin-bottom: 18px; }
.svc-ic svg { width: 24px; height: 24px; }
.svc h3 { font-size: 19px; margin-bottom: 10px; }
.svc p { color: var(--muted); font-size: 14.5px; }
.svc ul { margin-top: 14px; display: flex; flex-wrap: wrap; gap: 6px; }
.svc li { font-size: 12.5px; background: var(--bg-soft); color: var(--ink-2); padding: 3px 10px; border-radius: 999px; }
.ic-blue { background: rgba(47,91,255,.1); color: var(--primary); }
.ic-teal { background: rgba(18,181,160,.12); color: var(--accent); }
.ic-orange { background: rgba(255,138,61,.12); color: var(--warm); }
.ic-violet { background: rgba(122,92,255,.12); color: var(--edu); }

/* AI method band */
.method { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; margin-top: 56px; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: #fff; }
.method li { padding: 24px 20px; border-right: 1px solid var(--line); position: relative; }
.method li:last-child { border-right: 0; }
.method b { display: block; font-size: 13px; color: var(--primary); letter-spacing: 1px; margin-bottom: 6px; }
.method h4 { font-size: 16px; margin-bottom: 6px; }
.method p { font-size: 13.5px; color: var(--muted); }

/* ---------- Works tabs ---------- */
.works-tabs { display: inline-flex; background: #fff; border: 1px solid var(--line); border-radius: 999px; padding: 5px; gap: 4px; margin-bottom: 40px; flex-wrap: wrap; }
.works-tabs button { border: 0; background: none; font: inherit; font-size: 15px; font-weight: 600; padding: 10px 22px; border-radius: 999px; cursor: pointer; color: var(--muted); }
.works-tabs button.active { background: var(--ink); color: #fff; }

/* Manufacturing feature */
.mfg {
  display: grid; grid-template-columns: 1fr 1.05fr; gap: 48px; align-items: center;
  background: linear-gradient(160deg, #0d1a2e, #0f2b2a); color: #cfe0e6; border-radius: 24px; padding: 56px;
  position: relative; overflow: hidden;
}
.mfg::after { content: ""; position: absolute; width: 520px; height: 520px; right: -160px; top: -200px; background: radial-gradient(circle, rgba(18,181,160,.28), transparent 65%); pointer-events: none; }
.mfg h3 { color: #fff; font-size: 32px; margin: 14px 0 14px; }
.mfg .tag-line { color: #6fe3cf; font-weight: 600; font-size: 14px; letter-spacing: 1px; }
.mfg p { color: #a9bccb; }
.mfg-points { margin: 24px 0 30px; display: grid; gap: 10px; }
.mfg-points li { display: flex; gap: 10px; font-size: 15px; color: #d8e6ec; }
.mfg-points li::before { content: ""; width: 18px; height: 18px; flex: none; margin-top: 4px; border-radius: 50%; background: rgba(111,227,207,.18) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236fe3cf' stroke-width='3'%3E%3Cpath d='M5 12l5 5 9-10'/%3E%3C/svg%3E") center/11px no-repeat; }
.flowline { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-top: 8px; font-size: 13px; color: #8fb3bd; }
.flowline span { background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.1); padding: 4px 10px; border-radius: 8px; color: #d8e6ec; }
.modules { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; position: relative; z-index: 1; }
.mod {
  background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.1); border-radius: 14px; padding: 14px 16px;
  transition: background .2s, border-color .2s;
}
.mod:hover { background: rgba(255,255,255,.09); border-color: rgba(111,227,207,.4); }
.mod b { color: #fff; font-size: 15px; display: block; }
.mod small { color: #7fa0ad; font-size: 12px; letter-spacing: .3px; }
.mod p { font-size: 13px; color: #a9bccb; margin-top: 4px; }
.mod.base { grid-column: span 2; background: rgba(111,227,207,.08); border-color: rgba(111,227,207,.25); }

/* Education grid */
.edu-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.work {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
  display: flex; flex-direction: column; transition: transform .2s, box-shadow .2s;
}
.work:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.work-cover { height: 168px; position: relative; display: grid; place-items: center; overflow: hidden; }
.work-cover .big { font-size: 56px; font-weight: 800; color: rgba(255,255,255,.95); letter-spacing: 2px; text-shadow: 0 6px 24px rgba(0,0,0,.15); }
.work-cover .chip { position: absolute; left: 14px; top: 14px; font-size: 12px; background: rgba(255,255,255,.22); color: #fff; padding: 3px 10px; border-radius: 999px; backdrop-filter: blur(6px); }
.work-cover { height: 190px; }
.work-cover img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: top center; }
.work-cover .chip { z-index: 1; }
.work-body { padding: 22px 22px 24px; display: flex; flex-direction: column; flex: 1; }
.work-body h3 { font-size: 19px; margin-bottom: 8px; }
.work-body p { color: var(--muted); font-size: 14.5px; }
.work-body ul { margin-top: 14px; display: grid; gap: 6px; }
.work-body li { font-size: 13.5px; color: var(--ink-2); padding-left: 16px; position: relative; }
.work-body li::before { content: ""; position: absolute; left: 0; top: 9px; width: 6px; height: 6px; border-radius: 50%; background: var(--edu); }
.work-tags { margin-top: auto; padding-top: 18px; display: flex; flex-wrap: wrap; gap: 6px; }
.work-tags span { font-size: 12px; padding: 3px 9px; border-radius: 6px; background: var(--bg-soft); color: var(--muted); }
.work-tags span.ai { background: rgba(47,91,255,.08); color: var(--primary); }
.work-cover.phones { display: flex; gap: 10px; justify-content: center; align-items: flex-start; padding-top: 22px; }
.work-cover.phones img { position: static; width: 27%; height: auto; object-fit: initial; border-radius: 12px; box-shadow: 0 10px 24px -8px rgba(0,0,0,.35); border: 3px solid #fff; }
.work-cover.phones img:nth-child(3) { transform: translateY(14px); }
.cov-hamao { background: #192e8b; }
.work-cover img.logo { position: static; width: 156px; height: 156px; object-fit: contain; }
.cov-1 { background: linear-gradient(135deg, #6a5cff, #9b7bff); }
.cov-2 { background: linear-gradient(135deg, #ff7a59, #ffb547); }
.cov-3 { background: linear-gradient(135deg, #0fb19b, #3fd2a7); }
.cov-4 { background: linear-gradient(135deg, #2f5bff, #4fb4ff); }
.cov-5 { background: linear-gradient(135deg, #a8462e, #d88c4a); }
.cov-6 { background: linear-gradient(135deg, #1c2536, #4a5878); }
.cov-7 { background: linear-gradient(135deg, #e0457b, #ff8fb1); }
.cov-8 { background: linear-gradient(135deg, #3b4bb8, #8a5cff); }

.panel[hidden] { display: none; }

/* Other custom projects */
.others { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.other { border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; background: #fff; }
.other h4 { font-size: 16px; margin-bottom: 6px; display: flex; align-items: center; gap: 8px; }
.other h4 i { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); }
.other p { font-size: 14px; color: var(--muted); }

/* ---------- Why / Numbers ---------- */
.why-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.why { padding: 28px; border-radius: var(--radius); background: #fff; border: 1px solid var(--line); }
.why .n { font-size: 40px; font-weight: 800; color: var(--primary); line-height: 1; margin-bottom: 14px; font-variant-numeric: tabular-nums; }
.why h3 { font-size: 18px; margin-bottom: 8px; }
.why p { color: var(--muted); font-size: 14.5px; }

/* Process */
.process { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: step; }
.step { position: relative; padding: 26px 22px; background: #fff; border-radius: var(--radius); border: 1px solid var(--line); }
.step::before { counter-increment: step; content: "0" counter(step); font-size: 13px; font-weight: 800; color: #fff; background: var(--ink); width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center; margin-bottom: 16px; }
.step h4 { font-size: 17px; margin-bottom: 8px; }
.step p { font-size: 14px; color: var(--muted); }
.step small { display: inline-block; margin-top: 12px; font-size: 12.5px; color: var(--primary); font-weight: 600; }

/* ---------- About / Contact ---------- */
.about { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: start; }
.about p + p { margin-top: 14px; }
.about-text p { color: var(--text); font-size: 16px; }
.info-card { background: var(--bg-soft); border-radius: var(--radius); padding: 28px; border: 1px solid var(--line); }
.info-card dl { margin: 0; display: grid; grid-template-columns: 88px 1fr; row-gap: 14px; font-size: 15px; }
.info-card dt { color: var(--muted); }
.info-card dd { margin: 0; color: var(--ink); font-weight: 500; word-break: break-all; }

.cta {
  background: linear-gradient(120deg, var(--primary), #4b3bff 55%, var(--accent));
  border-radius: 24px; padding: 56px; color: #fff; display: flex; gap: 32px; align-items: center; justify-content: space-between; flex-wrap: wrap;
  box-shadow: var(--shadow-lg);
}
.cta h2 { color: #fff; font-size: clamp(24px, 3vw, 34px); margin-bottom: 8px; }
.cta p { color: rgba(255,255,255,.85); }
.cta .btn-white { background: #fff; color: var(--primary-ink); }

/* ---------- Footer ---------- */
.site-footer { background: var(--ink); color: #8f9bb3; padding: 56px 0 28px; font-size: 14px; }
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px; padding-bottom: 36px; border-bottom: 1px solid #1f2a40; }
.site-footer h5 { color: #fff; font-size: 15px; margin: 0 0 14px; }
.site-footer li { margin-bottom: 8px; }
.site-footer a:hover { color: #fff; }
.site-footer .brand { color: #fff; margin-bottom: 14px; }
.site-footer .brand-text small { color: #6f7b93; }
.foot-bottom { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding-top: 22px; font-size: 13px; }
.foot-bottom a { color: #8f9bb3; }

/* ---------- Reveal ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .fc-1, .fc-2 { animation: none; }
  html { scroll-behavior: auto; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  .services { grid-template-columns: repeat(2, 1fr); }
  .method { grid-template-columns: repeat(2, 1fr); }
  .method li { border-bottom: 1px solid var(--line); }
  .method li:nth-child(2n) { border-right: 0; }
  .method li:last-child { grid-column: span 2; border-bottom: 0; }
  .edu-grid, .others { grid-template-columns: repeat(2, 1fr); }
  .mfg { grid-template-columns: 1fr; padding: 40px; }
  .process { grid-template-columns: repeat(2, 1fr); }
  .foot-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 860px) {
  .nav-toggle { display: block; }
  .nav-links {
    position: absolute; left: 0; right: 0; top: 68px; background: #fff; flex-direction: column; align-items: stretch;
    padding: 12px 16px 20px; border-bottom: 1px solid var(--line); box-shadow: var(--shadow);
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 14px; }
  .nav-links .btn { margin: 8px 0 0; justify-content: center; }
  .nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle.open span:nth-child(2) { opacity: 0; }
  .nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .hero { padding: 56px 0 64px; }
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .fc-1 { left: 8px; bottom: -24px; }
  .fc-2 { right: 8px; }
  .why-grid { grid-template-columns: 1fr; }
  .about { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .container { padding: 0 16px; }
  section { padding: 64px 0; }
  .services, .edu-grid, .others, .process, .modules { grid-template-columns: 1fr; }
  .mod.base { grid-column: auto; }
  .method { grid-template-columns: 1fr; }
  .method li { border-right: 0; }
  .method li:last-child { grid-column: auto; }
  .mfg { padding: 28px 20px; border-radius: 18px; }
  .mfg h3 { font-size: 26px; }
  .cta { padding: 32px 24px; }
  .foot-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 24px; }
  .info-card dl { grid-template-columns: 72px 1fr; }
  .works-tabs { display: flex; width: 100%; }
  .works-tabs button { flex: 1; padding: 10px 12px; }
}