/* ═══════════════════════════════════════════════════════════
   极创网络 · 公司官网
   「AI 原生」：DeepSeek 式极简科技风——净白底、深蓝电光渐变、
   等宽字标签、居中大标题、双入口卡 + 产品轮播
   ═══════════════════════════════════════════════════════════ */

:root {
  --bg: #f7f9ff;
  --bg-2: #eef2fc;
  --panel: #ffffff;
  --ink: #0b1220;
  --ink-2: #47536e;
  --faint: #8a94ad;
  --line: #dfe6f5;
  --blue: #4d6bfe;
  --blue-deep: #3450e0;
  --cyan: #00c2d1;
  --violet: #8b5cf6;
  --grad: linear-gradient(120deg, #4d6bfe 10%, #00c2d1 90%);
  --grad-mind: linear-gradient(120deg, #8b5cf6 10%, #00c2d1 90%);
  --sans: "Noto Sans SC", sans-serif;
  --mono: "IBM Plex Mono", monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16.5px;
  line-height: 1.75;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
button { font-family: inherit; cursor: pointer; }

.wrap { width: min(1120px, calc(100% - 44px)); margin: 0 auto; }

.skip {
  position: absolute; left: 12px; top: -48px; z-index: 60;
  padding: 8px 14px; background: var(--ink); color: #fff; border-radius: 8px;
}
.skip:focus { top: 12px; }

/* ── 顶栏 ─────────────────────────────── */
.top {
  position: sticky; top: 0; z-index: 40;
  display: flex; align-items: center; gap: 30px;
  padding: 15px clamp(20px, 4vw, 44px);
  background: rgb(247 249 255 / 82%);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s, box-shadow .3s;
}
.top.is-stuck { border-bottom-color: var(--line); box-shadow: 0 8px 30px rgb(11 18 32 / 6%); }
.brand {
  display: flex; align-items: center; gap: 10px;
  text-decoration: none; font-weight: 900; font-size: 19px; letter-spacing: 0.02em;
}
.mark { display: grid; place-items: center; }
.top nav { display: flex; gap: 28px; margin-left: auto; }
.top nav a {
  text-decoration: none; font-size: 14.5px; font-weight: 500; color: var(--ink-2);
  transition: color .2s;
}
.top nav a:hover { color: var(--blue); }
.btn-top {
  text-decoration: none; font-size: 14px; font-weight: 700; color: #fff;
  padding: 9px 20px; border-radius: 999px;
  background: var(--ink);
  transition: background .2s, transform .15s;
}
.btn-top:hover { background: var(--blue-deep); transform: translateY(-1px); }

/* ── Hero ─────────────────────────────── */
.hero { position: relative; overflow: hidden; padding: clamp(72px, 10vw, 130px) 0 clamp(56px, 7vw, 90px); }
.hero-bg {
  position: absolute; inset: 0; pointer-events: none;
  background:
    repeating-linear-gradient(0deg, transparent 0 54px, rgb(77 107 254 / 4.5%) 54px 55px),
    repeating-linear-gradient(90deg, transparent 0 54px, rgb(77 107 254 / 4.5%) 54px 55px);
  mask-image: radial-gradient(70% 66% at 50% 34%, #000 40%, transparent);
}
.orb {
  position: absolute; border-radius: 50%; filter: blur(70px); opacity: .5;
}
.orb-1 { width: 480px; height: 480px; left: -140px; top: -160px; background: rgb(77 107 254 / 28%); }
.orb-2 { width: 420px; height: 420px; right: -120px; top: 60px; background: rgb(0 194 209 / 22%); }

.hero-inner { position: relative; text-align: center; }
.badge {
  display: inline-flex; align-items: center; gap: 9px;
  margin: 0 0 26px;
  font-family: var(--mono); font-size: 12.5px; font-weight: 600; letter-spacing: 0.14em;
  color: var(--blue-deep);
  padding: 7px 16px;
  background: #fff; border: 1px solid var(--line); border-radius: 999px;
  box-shadow: 0 6px 20px rgb(77 107 254 / 10%);
}
.badge-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--grad);
  animation: pulse 2.2s ease-in-out infinite;
}
@keyframes pulse { 50% { opacity: .35; transform: scale(.8); } }

.hero h1 {
  margin: 0;
  font-weight: 900;
  font-size: clamp(38px, 6.4vw, 72px);
  line-height: 1.2; letter-spacing: 0.01em;
}
.hero h1 em {
  font-style: normal;
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.hero-sub {
  margin: 24px auto 0; max-width: 36em;
  font-size: 17px; color: var(--ink-2);
}

/* 双产品入口卡 */
.entry {
  display: grid; grid-template-columns: repeat(2, minmax(0, 320px));
  justify-content: center; gap: 18px;
  margin-top: 44px;
}
.entry-card {
  display: flex; flex-direction: column; gap: 6px;
  text-align: left; text-decoration: none;
  padding: 24px 26px 20px;
  background: var(--panel);
  border: 1px solid var(--line); border-radius: 18px;
  box-shadow: 0 10px 34px rgb(11 18 32 / 6%);
  transition: transform .2s, box-shadow .25s, border-color .25s;
}
.entry-card:hover {
  transform: translateY(-4px);
  border-color: rgb(77 107 254 / 45%);
  box-shadow: 0 24px 54px rgb(77 107 254 / 16%);
}
.entry-kicker { font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.16em; color: var(--faint); }
.entry-card b { font-size: 23px; font-weight: 900; }
.entry-desc { font-size: 14px; color: var(--ink-2); line-height: 1.65; }
.entry-go {
  margin-top: 12px; font-size: 14.5px; font-weight: 700;
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.entry-go i { font-style: normal; }
.entry-card:nth-child(2) .entry-go { background: var(--grad-mind); -webkit-background-clip: text; background-clip: text; }

.hero-meta {
  display: flex; justify-content: center; gap: 14px;
  margin: 40px 0 0; padding: 0; list-style: none;
  font-family: var(--mono); font-size: 13px; color: var(--faint); letter-spacing: 0.08em;
}

/* ── 通用 section 头 ───────────────────── */
section { scroll-margin-top: 76px; }
.sec-head { text-align: center; margin-bottom: clamp(30px, 4.5vw, 48px); }
.sec-no {
  margin: 0 0 12px;
  font-family: var(--mono); font-size: 13px; font-weight: 600;
  letter-spacing: 0.18em; color: var(--faint);
}
.sec-head h2 {
  margin: 0; font-weight: 900;
  font-size: clamp(26px, 3.8vw, 40px); line-height: 1.3;
}
.sec-head h2 em {
  font-style: normal;
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}

/* ── 产品轮播 ─────────────────────────── */
.products { padding: clamp(48px, 7vw, 90px) 0; }
.carousel {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 26px;
  box-shadow: 0 24px 70px rgb(11 18 32 / 8%);
  overflow: hidden;
}
.car-track {
  display: flex;
  transition: transform .55s cubic-bezier(.25,.8,.3,1);
}
.car-slide {
  flex: 0 0 100%;
  display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(20px, 3vw, 44px);
  align-items: center;
  padding: clamp(30px, 4.5vw, 56px) clamp(24px, 4.5vw, 60px);
  min-height: 480px;
}
.car-copy { max-width: 30em; }
.car-pill {
  display: inline-block;
  font-family: var(--mono); font-size: 12px; font-weight: 600; letter-spacing: 0.1em;
  color: var(--blue-deep);
  padding: 5px 14px; border-radius: 999px;
  background: rgb(77 107 254 / 9%);
}
.car-slide[data-theme="mind"] .car-pill { color: #6d3fd8; background: rgb(139 92 246 / 10%); }
.car-copy h3 {
  margin: 18px 0 14px;
  font-weight: 900; font-size: clamp(24px, 3vw, 34px); line-height: 1.35;
}
.car-copy > p { margin: 0 0 18px; color: var(--ink-2); font-size: 15.5px; }
.car-tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 26px; padding: 0; list-style: none; }
.car-tags li {
  font-size: 13px; font-weight: 500; color: var(--ink-2);
  padding: 5px 13px; border: 1px solid var(--line); border-radius: 999px; background: var(--bg);
}
.car-cta {
  display: inline-block; text-decoration: none;
  font-weight: 700; font-size: 15.5px; color: #fff;
  padding: 12px 26px; border-radius: 999px;
  background: var(--grad);
  box-shadow: 0 10px 26px rgb(77 107 254 / 30%);
  transition: transform .15s, box-shadow .2s;
}
.car-cta:hover { transform: translateY(-2px); box-shadow: 0 16px 34px rgb(77 107 254 / 38%); }
.car-slide[data-theme="mind"] .car-cta { background: var(--grad-mind); box-shadow: 0 10px 26px rgb(139 92 246 / 28%); }
.car-cta.is-wait { background: var(--bg-2); color: var(--ink-2); box-shadow: none; cursor: default; }
.car-cta.is-wait:hover { transform: none; }

/* 轮播视觉：手机截图 */
.car-visual { margin: 0; display: grid; place-items: center; }
.phone {
  width: min(250px, 70%);
  padding: 10px;
  background: #0b1220;
  border-radius: 34px;
  box-shadow: 0 30px 70px rgb(11 18 32 / 26%), inset 0 0 0 1.5px rgb(255 255 255 / 14%);
}
.phone img { border-radius: 25px; }

/* 轮播视觉：心境测绘屋 CSS 图形 */
.mind-viz {
  position: relative;
  width: min(320px, 82%); aspect-ratio: 1;
  display: grid; place-items: center;
}
.ring {
  position: absolute; border-radius: 50%;
  border: 1.6px solid rgb(139 92 246 / 38%);
}
.ring-1 { inset: 0; animation: spin 26s linear infinite; border-style: dashed; }
.ring-2 { inset: 13%; border-color: rgb(0 194 209 / 42%); animation: spin 18s linear infinite reverse; }
.ring-3 { inset: 27%; border-color: rgb(139 92 246 / 55%); border-style: dashed; animation: spin 12s linear infinite; }
@keyframes spin { to { transform: rotate(1turn); } }
.mind-core {
  width: 34%; aspect-ratio: 1; border-radius: 50%;
  background: var(--grad-mind);
  filter: blur(2px); opacity: .85;
  animation: breathe 4.2s ease-in-out infinite;
}
@keyframes breathe { 50% { transform: scale(1.12); opacity: 1; } }
.mind-tag {
  position: absolute;
  font-family: var(--mono); font-size: 12.5px; font-weight: 600;
  padding: 5px 12px; border-radius: 999px;
  background: #fff; border: 1px solid var(--line);
  box-shadow: 0 8px 22px rgb(11 18 32 / 10%);
}
.t1 { top: 10%; right: 2%; color: #0a9aa8; }
.t2 { bottom: 24%; left: -4%; color: #6d3fd8; }
.t3 { bottom: 4%; right: 12%; color: var(--faint); }
.mind-net svg { overflow: visible; }

/* 轮播控件 */
.car-ui {
  display: flex; align-items: center; justify-content: center; gap: 22px;
  padding: 0 24px 26px;
}
.car-arrow {
  width: 40px; height: 40px; border-radius: 50%;
  border: 1px solid var(--line); background: #fff;
  font-size: 16px; color: var(--ink-2);
  transition: border-color .2s, color .2s, transform .15s;
}
.car-arrow:hover { border-color: var(--blue); color: var(--blue); transform: translateY(-1px); }
.car-dots { display: flex; gap: 8px; }
.car-dots button {
  width: 8px; height: 8px; padding: 0; border: 0; border-radius: 999px;
  background: var(--line);
  transition: width .25s, background .25s;
}
.car-dots button.on { width: 26px; background: var(--grad); }

/* ── AI 能力 ──────────────────────────── */
.ai { padding: clamp(48px, 7vw, 90px) 0; }
.ai-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: clamp(14px, 1.8vw, 20px);
}
.ai-card {
  position: relative;
  padding: 26px 24px 28px;
  background: var(--panel);
  border: 1px solid var(--line); border-radius: 18px;
  transition: transform .2s, box-shadow .25s, border-color .25s;
  overflow: hidden;
}
.ai-card::before {
  content: ""; position: absolute; inset: 0 0 auto;
  height: 3px; background: var(--grad);
  opacity: 0; transition: opacity .25s;
}
.ai-card:hover { transform: translateY(-4px); border-color: rgb(77 107 254 / 40%); box-shadow: 0 20px 46px rgb(77 107 254 / 12%); }
.ai-card:hover::before { opacity: 1; }
.ai-no { font-family: var(--mono); font-size: 13px; font-weight: 600; color: var(--blue); }
.ai-card h3 { margin: 10px 0 8px; font-size: 19px; font-weight: 900; }
.ai-card p { margin: 0; font-size: 14px; color: var(--ink-2); line-height: 1.75; }

/* ── 关于 + 联系 ──────────────────────── */
.about { padding: clamp(48px, 7vw, 90px) 0 clamp(64px, 9vw, 110px); }
.about-inner {
  text-align: center;
  padding: clamp(40px, 6vw, 70px) clamp(24px, 5vw, 80px);
  background:
    radial-gradient(60% 90% at 50% 0%, rgb(77 107 254 / 10%), transparent 70%),
    var(--panel);
  border: 1px solid var(--line); border-radius: 26px;
}
.about-lede {
  margin: 14px auto 30px; max-width: 40em;
  font-size: clamp(17px, 2vw, 20px); line-height: 1.9; color: var(--ink-2);
}
.about-lede b { color: var(--ink); }
.about-contact { display: flex; flex-direction: column; align-items: center; gap: 12px; }
.about-contact span { font-size: 13.5px; color: var(--faint); }
.btn-main {
  display: inline-block; text-decoration: none;
  font-family: var(--mono); font-weight: 600; font-size: 16px; color: #fff;
  padding: 14px 34px; border-radius: 999px;
  background: var(--grad);
  box-shadow: 0 14px 34px rgb(77 107 254 / 30%);
  transition: transform .15s, box-shadow .2s;
}
.btn-main:hover { transform: translateY(-2px); box-shadow: 0 20px 44px rgb(77 107 254 / 40%); }

/* ── 页脚 ─────────────────────────────── */
.foot { border-top: 1px solid var(--line); background: #fff; padding: 38px 0 30px; }
.foot-inner {
  display: flex; flex-wrap: wrap; align-items: flex-start; justify-content: space-between; gap: 20px;
  padding-bottom: 24px; border-bottom: 1px solid var(--line);
}
.foot-brand b { display: block; font-size: 15px; }
.foot-brand span { font-size: 13px; color: var(--faint); }
.foot-links { display: flex; gap: 24px; }
.foot-links a { text-decoration: none; font-size: 14px; color: var(--ink-2); transition: color .2s; }
.foot-links a:hover { color: var(--blue); }
.foot-hotline { display: block; margin-top: 8px; font-size: 13px; color: var(--ink-2); }
.foot-hotline a { text-decoration: none; font-weight: 700; color: var(--blue-deep); }
.foot-hotline a:hover { text-decoration: underline; }
.foot-legal {
  display: flex; flex-wrap: wrap; gap: 8px 24px;
  padding-top: 20px; font-size: 12.5px; color: var(--faint);
}
.foot-legal a { text-decoration: none; }
.foot-legal a:hover { color: var(--blue); }
.foot-mps {
  display: inline-flex; align-items: center; gap: 5px;
}
.foot-mps::before {
  content: ""; width: 14px; height: 14px;
  background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16"><path d="M8 1l6 2v4c0 3.6-2.4 6.8-6 8-3.6-1.2-6-4.4-6-8V3z" fill="%23b8933e"/><path d="M8 3.2l4 1.3v2.6c0 2.5-1.6 4.7-4 5.6-2.4-.9-4-3.1-4-5.6V4.5z" fill="%23e8c96a"/></svg>') no-repeat center / contain;
}
.foot-note {
  padding-top: 10px; font-size: 12px; color: var(--faint); line-height: 1.7;
}

/* ── 动效 ─────────────────────────────── */
.rise { opacity: 0; transform: translateY(20px); animation: rise .8s cubic-bezier(.2,.7,.3,1) forwards; }
.r1 { animation-delay: .05s; }
.r2 { animation-delay: .15s; }
.r3 { animation-delay: .28s; }
.r4 { animation-delay: .42s; }
.r5 { animation-delay: .56s; }
@keyframes rise { to { opacity: 1; transform: none; } }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s cubic-bezier(.2,.7,.3,1); }
.reveal.is-in { opacity: 1; transform: none; }
.ai-grid .ai-card:nth-child(2).reveal { transition-delay: .1s; }
.ai-grid .ai-card:nth-child(3).reveal { transition-delay: .2s; }
.ai-grid .ai-card:nth-child(4).reveal { transition-delay: .3s; }

@media (prefers-reduced-motion: reduce) {
  .rise, .reveal { animation: none; transition: none; opacity: 1; transform: none; }
  .ring, .mind-core, .badge-dot { animation: none; }
  .car-track { transition: none; }
}

/* ── 响应式 ───────────────────────────── */
@media (max-width: 960px) {
  .car-slide { grid-template-columns: 1fr; min-height: 0; text-align: center; }
  .car-copy { max-width: none; }
  .car-tags { justify-content: center; }
  .car-visual { order: -1; }
  .phone { width: min(210px, 58%); }
  .mind-viz { width: min(250px, 62%); }
  .ai-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 620px) {
  .top { gap: 14px; }
  .top nav { display: none; }
  .entry { grid-template-columns: 1fr; }
  .hero-meta { flex-wrap: wrap; gap: 8px 12px; }
  .ai-grid { grid-template-columns: 1fr; }
  .foot-inner { flex-direction: column; }
}