@charset "UTF-8";
/* ============================================================
   江苏先行无人机科技有限公司 — 官网样式
   设计基调：深空科技感 / 青蓝渐变 / 玻璃拟态 / 微动效
   ============================================================ */

/* ---------- 1. 变量 ---------- */
:root {
  --bg:            #05070d;
  --bg-2:          #070b14;
  --surface:       rgba(255,255,255,.035);
  --surface-2:     rgba(255,255,255,.06);
  --line:          rgba(255,255,255,.09);
  --line-strong:   rgba(255,255,255,.16);

  --text:          #e9eefb;
  --text-dim:      #a7b3cc;
  --text-mute:     #6d7b98;

  --cyan:          #00e5ff;
  --blue:          #4d7cff;
  --violet:        #7b5cff;
  --grad:          linear-gradient(120deg, #00e5ff 0%, #4d7cff 55%, #7b5cff 100%);
  --grad-soft:     linear-gradient(120deg, rgba(0,229,255,.16), rgba(77,124,255,.16));

  --glow-cyan:     0 0 0 1px rgba(0,229,255,.35), 0 8px 40px -8px rgba(0,229,255,.45);
  --glow-blue:     0 18px 60px -22px rgba(77,124,255,.75);

  --r-sm: 10px;
  --r:    16px;
  --r-lg: 24px;

  --wrap: 1240px;
  --ease: cubic-bezier(.22,.61,.36,1);
  --ease-out: cubic-bezier(.16,1,.3,1);

  --font: "PingFang SC", "HarmonyOS Sans SC", "MiSans", -apple-system, BlinkMacSystemFont,
          "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-num: "Sora", "Bahnschrift", "DIN Alternate", "PingFang SC", var(--font);
}

/* ---------- 2. 基础 ---------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: .01em;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.is-locked { overflow: hidden; }

h1, h2, h3, h4 { margin: 0; line-height: 1.25; letter-spacing: -.01em; font-weight: 700; }
p  { margin: 0; }
ul, ol, dl { margin: 0; padding: 0; list-style: none; }
img, svg, canvas { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
sup { color: var(--cyan); }

::selection { background: rgba(0,229,255,.3); color: #fff; }

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: fixed; top: -60px; left: 16px; z-index: 200;
  padding: 10px 18px; background: var(--cyan); color: #04121a;
  border-radius: 8px; font-weight: 700; transition: top .25s var(--ease);
}
.skip-link:focus { top: 16px; }

.wrap {
  width: min(100% - 40px, var(--wrap));
  margin-inline: auto;
}

.grad {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- 3. 背景光效 ---------- */
.aurora { position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }

.aurora__blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: .5;
  will-change: transform;
}
.aurora__blob--1 {
  width: 46vw; height: 46vw; min-width: 380px; min-height: 380px;
  top: -12vw; left: -8vw;
  background: radial-gradient(circle at 30% 30%, rgba(0,229,255,.55), transparent 65%);
  animation: float1 26s ease-in-out infinite;
}
.aurora__blob--2 {
  width: 42vw; height: 42vw; min-width: 340px; min-height: 340px;
  top: 18vh; right: -12vw;
  background: radial-gradient(circle at 60% 40%, rgba(77,124,255,.5), transparent 65%);
  animation: float2 32s ease-in-out infinite;
}
.aurora__blob--3 {
  width: 38vw; height: 38vw; min-width: 300px; min-height: 300px;
  bottom: -14vw; left: 22vw;
  background: radial-gradient(circle at 50% 50%, rgba(123,92,255,.42), transparent 65%);
  animation: float3 38s ease-in-out infinite;
}
@keyframes float1 { 50% { transform: translate3d(6vw, 8vh, 0) scale(1.12); } }
@keyframes float2 { 50% { transform: translate3d(-7vw, 10vh, 0) scale(1.08); } }
@keyframes float3 { 50% { transform: translate3d(5vw, -9vh, 0) scale(1.15); } }

.aurora__grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 62px 62px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, #000 20%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, #000 20%, transparent 80%);
}
.aurora__noise {
  position: absolute; inset: 0; opacity: .22;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='.5'/%3E%3C/svg%3E");
}

/* ---------- 4. 启动动画 ---------- */
.boot {
  position: fixed; inset: 0; z-index: 300;
  display: grid; place-items: center;
  background: var(--bg);
  transition: opacity .6s var(--ease), visibility .6s;
}
.boot.is-done { opacity: 0; visibility: hidden; }
.boot__inner { display: grid; justify-items: center; gap: 18px; }
.boot__logo { animation: bootSpin 2.4s linear infinite; }
@keyframes bootSpin { to { transform: rotate(360deg); } }
.boot__bar {
  width: 200px; height: 2px; border-radius: 2px;
  background: rgba(255,255,255,.1); overflow: hidden;
}
.boot__bar span {
  display: block; height: 100%; width: 40%;
  background: var(--grad); border-radius: 2px;
  animation: bootBar 1.1s var(--ease) infinite;
}
@keyframes bootBar { 0% { transform: translateX(-110%); } 100% { transform: translateX(320%); } }
.boot__txt { font-size: 12px; letter-spacing: .22em; color: var(--text-mute); text-transform: uppercase; }

/* ---------- 5. 滚动进度 ---------- */
.progress {
  position: fixed; top: 0; left: 0; right: 0; height: 2px; z-index: 120;
  background: rgba(255,255,255,.05);
}
.progress span {
  display: block; height: 100%; width: 0;
  background: var(--grad);
  box-shadow: 0 0 14px rgba(0,229,255,.7);
  transition: width .1s linear;
}

/* ---------- 6. 导航 ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 110;
  padding: 18px 0;
  transition: padding .3s var(--ease), background .3s var(--ease),
              backdrop-filter .3s var(--ease), border-color .3s var(--ease);
  border-bottom: 1px solid transparent;
}
.nav.is-stuck {
  padding: 10px 0;
  background: rgba(7,11,20,.72);
  backdrop-filter: blur(18px) saturate(150%);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
  border-bottom-color: var(--line);
}
.nav__inner {
  width: min(100% - 40px, var(--wrap));
  margin-inline: auto;
  display: flex; align-items: center; gap: 24px;
}

.brand { display: flex; align-items: center; gap: 11px; flex: none; }
.brand__mark { filter: drop-shadow(0 0 12px rgba(0,229,255,.35)); }
.brand__text { display: grid; line-height: 1.2; }
.brand__text strong { font-size: 17px; letter-spacing: .06em; }
.brand__text em {
  font-style: normal; font-size: 9.5px; letter-spacing: .2em;
  color: var(--text-mute); text-transform: uppercase;
}

.nav__links { display: flex; gap: 6px; margin-left: auto; }
.nav__links a {
  position: relative; padding: 8px 14px; border-radius: 999px;
  font-size: 14.5px; color: var(--text-dim);
  transition: color .25s var(--ease), background .25s var(--ease);
}
.nav__links a::after {
  content: ""; position: absolute; left: 50%; bottom: 2px;
  width: 0; height: 2px; border-radius: 2px;
  background: var(--grad);
  transform: translateX(-50%);
  transition: width .3s var(--ease);
}
.nav__links a:hover { color: #fff; }
.nav__links a:hover::after,
.nav__links a.is-active::after { width: 22px; }
.nav__links a.is-active { color: #fff; background: var(--surface); }

.nav__right { display: flex; align-items: center; gap: 12px; flex: none; }

.nav__burger { display: none; width: 42px; height: 42px; border-radius: 12px; border: 1px solid var(--line); }
.nav__burger span {
  display: block; width: 18px; height: 1.5px; margin: 3.5px auto;
  background: var(--text); border-radius: 2px;
  transition: transform .3s var(--ease), opacity .2s var(--ease);
}
.nav__burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(5px) rotate(45deg); }
.nav__burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }

/* 移动端菜单 */
.mnav {
  position: fixed; inset: 0; z-index: 105;
  background: rgba(5,7,13,.96);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: grid; align-content: center; gap: 8px;
  padding: 100px 32px 40px;
  /* 用 visibility 而非定时器控制显隐：关闭时延迟到淡出结束再隐藏，
     既保留过渡，又不会留下可点击 / 可被读屏访问的全屏遮罩 */
  opacity: 0; visibility: hidden; pointer-events: none;
  transition: opacity .3s var(--ease), visibility 0s linear .3s;
}
/* 关键：作者样式的 display 会覆盖 UA 的 [hidden]，必须显式声明，
   否则隐藏状态下这层全屏遮罩会拦截整页点击 */
.mnav[hidden] { display: none; }
.mnav.is-open {
  opacity: 1; visibility: visible; pointer-events: auto;
  transition: opacity .3s var(--ease), visibility 0s;
}
.mnav nav { display: grid; gap: 6px; }
.mnav nav a {
  font-size: clamp(26px, 7vw, 40px); font-weight: 700;
  padding: 14px 0; border-bottom: 1px solid var(--line);
  opacity: 0; transform: translateY(18px);
  transition: opacity .4s var(--ease), transform .4s var(--ease);
}
.mnav.is-open nav a { opacity: 1; transform: none; }
.mnav.is-open nav a:nth-child(1) { transition-delay: .06s; }
.mnav.is-open nav a:nth-child(2) { transition-delay: .12s; }
.mnav.is-open nav a:nth-child(3) { transition-delay: .18s; }
.mnav.is-open nav a:nth-child(4) { transition-delay: .24s; }
.mnav.is-open nav a:nth-child(5) { transition-delay: .30s; }
.mnav__foot { display: grid; gap: 6px; margin-top: 34px; color: var(--text-mute); font-size: 14px; }
.mnav__foot a { font-size: 22px; color: var(--cyan); font-weight: 700; }

/* 侧边锚点 */
.dots {
  position: fixed; right: 26px; top: 50%; transform: translateY(-50%);
  z-index: 100; display: grid; gap: 14px;
}
.dots a { display: grid; place-items: center; width: 22px; height: 22px; position: relative; }
.dots a span {
  width: 7px; height: 7px; border-radius: 50%;
  background: rgba(255,255,255,.22);
  transition: background .3s var(--ease), transform .3s var(--ease), box-shadow .3s var(--ease);
}
.dots a::after {
  content: attr(data-label);
  position: absolute; right: 26px; top: 50%;
  transform: translate(8px, -50%); opacity: 0;
  white-space: nowrap; font-size: 12px; color: var(--text-dim);
  background: rgba(7,11,20,.9); border: 1px solid var(--line);
  padding: 4px 10px; border-radius: 8px;
  transition: opacity .25s var(--ease), transform .25s var(--ease);
  pointer-events: none;
}
.dots a:hover::after { opacity: 1; transform: translate(0, -50%); }
.dots a.is-active span { background: var(--cyan); transform: scale(1.5); box-shadow: 0 0 12px rgba(0,229,255,.8); }

/* ---------- 7. 按钮 ---------- */
.btn {
  --pad: 13px 26px;
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  padding: var(--pad);
  border-radius: 999px;
  font-size: 15px; font-weight: 600; letter-spacing: .02em;
  position: relative; overflow: hidden;
  transition: transform .3s var(--ease-out), box-shadow .3s var(--ease), color .3s var(--ease);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn--primary {
  background: var(--grad); color: #04121a; font-weight: 700;
  box-shadow: 0 10px 30px -10px rgba(0,229,255,.6);
}
.btn--primary::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(120deg, transparent 20%, rgba(255,255,255,.6), transparent 80%);
  transform: translateX(-120%); transition: transform .7s var(--ease);
}
.btn--primary:hover { box-shadow: 0 16px 44px -10px rgba(0,229,255,.75); }
.btn--primary:hover::after { transform: translateX(120%); }

.btn--outline {
  border: 1px solid var(--line-strong); color: var(--text);
  background: var(--surface);
}
.btn--outline:hover { border-color: rgba(0,229,255,.55); color: #fff; background: rgba(0,229,255,.07); }

.btn--ghost {
  border: 1px solid var(--line); color: var(--text-dim);
  background: rgba(255,255,255,.03);
}
.btn--ghost:hover { color: #fff; border-color: rgba(0,229,255,.5); }

.btn--sm { --pad: 9px 16px; font-size: 13.5px; }
.btn--block { width: 100%; }

/* ---------- 8. HERO ---------- */
.hero {
  position: relative;
  min-height: 100dvh;
  display: grid; align-items: center;
  padding: 140px 0 120px;
  overflow: hidden;
  isolation: isolate;
}
.hero__canvas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: -2; }
.hero__scan {
  position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background: linear-gradient(180deg, transparent 0%, rgba(0,229,255,.06) 48%, transparent 100%);
  animation: scanDown 7s linear infinite;
}
@keyframes scanDown { 0% { transform: translateY(-100%); } 100% { transform: translateY(100%); } }

.hero__floor {
  position: absolute; left: -20%; right: -20%; bottom: -10%; height: 46%;
  z-index: -1; pointer-events: none;
  background-image:
    linear-gradient(rgba(0,229,255,.22) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,229,255,.18) 1px, transparent 1px);
  background-size: 70px 70px;
  transform: perspective(520px) rotateX(66deg);
  mask-image: linear-gradient(to top, #000, transparent 72%);
  -webkit-mask-image: linear-gradient(to top, #000, transparent 72%);
  opacity: .55;
  animation: floorMove 12s linear infinite;
}
@keyframes floorMove { to { background-position: 0 70px, 70px 0; } }

.hero__inner { position: relative; z-index: 2; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 12px; letter-spacing: .26em; text-transform: uppercase;
  color: var(--cyan); font-weight: 600;
  padding: 6px 14px; border: 1px solid rgba(0,229,255,.28);
  border-radius: 999px; background: rgba(0,229,255,.06);
  margin-bottom: 26px;
}

.hero__title {
  font-size: clamp(38px, 7.2vw, 92px);
  font-weight: 800; letter-spacing: -.02em;
  margin-bottom: 26px;
}
.hero__title .line { display: block; overflow: hidden; padding-bottom: .06em; }
.hero__title .line__i {
  display: block;
  animation: riseIn 1.1s var(--ease-out) both;
}
.hero__title .line:nth-child(2) .line__i { animation-delay: .16s; }
@keyframes riseIn {
  from { transform: translateY(105%); opacity: 0; }
  to   { transform: translateY(0); opacity: 1; }
}

.hero__sub {
  max-width: 640px; font-size: clamp(15px, 1.6vw, 19px);
  color: var(--text-dim); line-height: 1.9; margin-bottom: 30px;
}
.hero__sub b { color: var(--text); font-weight: 700; }

.chips { display: flex; flex-wrap: wrap; gap: 9px; margin-bottom: 38px; }
.chips li {
  font-size: 13px; color: var(--text-dim);
  padding: 6px 14px; border-radius: 999px;
  border: 1px solid var(--line); background: rgba(255,255,255,.03);
  transition: all .3s var(--ease);
}
.chips li:hover {
  color: #fff; border-color: rgba(0,229,255,.5);
  background: rgba(0,229,255,.08); transform: translateY(-2px);
}

.hero__cta { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 62px; }

.hero__stats {
  display: grid; grid-template-columns: repeat(4, minmax(0,1fr));
  gap: 1px; max-width: 780px;
  border: 1px solid var(--line); border-radius: var(--r);
  overflow: hidden; background: var(--line);
}
.hero__stats > div {
  background: rgba(9,13,22,.72);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 20px 18px;
}
.hero__stats dt {
  font-family: var(--font-num);
  font-size: clamp(24px, 3vw, 38px); font-weight: 800; line-height: 1.1;
  display: flex; align-items: baseline; gap: 2px;
}
.hero__stats dt i { font-style: normal; font-size: .55em; color: var(--cyan); }
.hero__stats dd { margin: 6px 0 0; font-size: 12.5px; color: var(--text-mute); letter-spacing: .04em; }

.hero__scroll {
  position: absolute; left: 50%; bottom: 34px; transform: translateX(-50%);
  display: grid; justify-items: center; gap: 10px; z-index: 3;
}
.hero__mouse {
  width: 22px; height: 36px; border: 1px solid var(--line-strong);
  border-radius: 12px; display: grid; justify-items: center; padding-top: 7px;
}
.hero__mouse i {
  width: 3px; height: 7px; border-radius: 3px; background: var(--cyan);
  animation: wheel 1.6s var(--ease) infinite;
}
@keyframes wheel { 0%,100% { opacity: 1; transform: translateY(0); } 60% { opacity: .2; transform: translateY(12px); } }
.hero__scrolltxt { font-size: 9.5px; letter-spacing: .3em; color: var(--text-mute); }

/* ---------- 9. 区块通用 ---------- */
.sec { position: relative; z-index: 1; padding: clamp(80px, 11vw, 150px) 0; }
.sec__head { max-width: 780px; margin-bottom: clamp(44px, 6vw, 76px); }
.sec__title {
  font-size: clamp(30px, 5vw, 58px); font-weight: 800; letter-spacing: -.02em;
  margin-bottom: 20px;
}
.sec__desc { color: var(--text-dim); font-size: clamp(14.5px, 1.5vw, 17.5px); line-height: 1.95; }

/* ---------- 10. 能力卡片 Bento ---------- */
.bento {
  display: grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 18px;
}
.card {
  --mx: 50%; --my: 50%;
  position: relative;
  padding: 30px 28px 34px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background:
    radial-gradient(420px circle at var(--mx) var(--my), rgba(0,229,255,.10), transparent 60%),
    linear-gradient(180deg, rgba(255,255,255,.045), rgba(255,255,255,.015));
  overflow: hidden;
  transition: transform .45s var(--ease-out), border-color .4s var(--ease), box-shadow .45s var(--ease);
  display: flex; flex-direction: column;
}
.card--wide { grid-column: span 2; }
.card:hover {
  transform: translateY(-8px);
  border-color: rgba(0,229,255,.4);
  box-shadow: 0 26px 60px -30px rgba(0,229,255,.55), 0 0 0 1px rgba(0,229,255,.14);
}
.card__glow {
  position: absolute; inset: -1px; border-radius: inherit; pointer-events: none;
  background: var(--grad); opacity: 0;
  transition: opacity .4s var(--ease);
  mask: linear-gradient(#000, #000) content-box, linear-gradient(#000, #000);
  -webkit-mask: linear-gradient(#000, #000) content-box, linear-gradient(#000, #000);
  mask-composite: exclude; -webkit-mask-composite: xor; padding: 1px;
}
.card:hover .card__glow { opacity: .85; }

.card__ico {
  width: 52px; height: 52px; border-radius: 15px;
  display: grid; place-items: center; margin-bottom: 20px;
  color: var(--cyan);
  background: linear-gradient(150deg, rgba(0,229,255,.18), rgba(77,124,255,.1));
  border: 1px solid rgba(0,229,255,.24);
  transition: transform .5s var(--ease-out), box-shadow .4s var(--ease);
}
.card:hover .card__ico {
  transform: translateY(-3px) rotate(-6deg) scale(1.06);
  box-shadow: 0 10px 30px -10px rgba(0,229,255,.7);
}
.card h3 { font-size: clamp(18px, 2vw, 22px); margin-bottom: 12px; font-weight: 700; }
.card p  { color: var(--text-dim); font-size: 14.5px; line-height: 1.85; }

.card__tags { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 18px; }
.card__tags li {
  font-size: 11.5px; color: var(--text-mute);
  padding: 4px 11px; border-radius: 6px;
  background: rgba(255,255,255,.05); border: 1px solid var(--line);
}
.card__arrow {
  position: absolute; right: 24px; bottom: 24px;
  color: var(--cyan); opacity: 0; transform: translateX(-8px);
  transition: opacity .4s var(--ease), transform .4s var(--ease);
}
.card:hover .card__arrow { opacity: 1; transform: none; }

/* 服务流程 */
.flow {
  margin-top: 56px; padding: 40px 34px;
  border: 1px solid var(--line); border-radius: var(--r-lg);
  background: linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.01));
}
.flow__title { font-size: 20px; margin-bottom: 32px; text-align: center; }
.flow__list { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 24px; position: relative; }
.flow__list::before {
  content: ""; position: absolute; left: 8%; right: 8%; top: 26px; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0,229,255,.5), rgba(77,124,255,.5), transparent);
}
.flow__item { position: relative; text-align: center; }
.flow__num {
  display: grid; place-items: center;
  width: 52px; height: 52px; margin: 0 auto 16px;
  border-radius: 50%;
  font-family: var(--font-num); font-size: 15px; font-weight: 800;
  background: var(--bg-2); border: 1px solid rgba(0,229,255,.42);
  color: var(--cyan);
  box-shadow: 0 0 0 6px rgba(5,7,13,1), 0 0 24px -6px rgba(0,229,255,.6);
  transition: transform .4s var(--ease-out), box-shadow .4s var(--ease);
}
.flow__item:hover .flow__num { transform: scale(1.12); box-shadow: 0 0 0 6px rgba(5,7,13,1), 0 0 34px -4px rgba(0,229,255,.9); }
.flow__item h4 { font-size: 16px; margin-bottom: 6px; }
.flow__item p { font-size: 13px; color: var(--text-mute); line-height: 1.7; }

/* ---------- 11. 前景 ---------- */
.sec--future { background: linear-gradient(180deg, transparent, rgba(0,229,255,.035), transparent); }

/* 政策三级跳 */
.ladder { position: relative; margin-bottom: 56px; }
.ladder__bar {
  height: 3px; border-radius: 3px; background: rgba(255,255,255,.07);
  overflow: hidden; margin: 0 0 26px;
}
.ladder__bar span {
  display: block; height: 100%; width: 0;
  background: var(--grad); box-shadow: 0 0 16px rgba(0,229,255,.8);
  transition: width 1.6s var(--ease-out);
}
.ladder__steps { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 16px; }
.ladder__step {
  padding: 22px 24px; border-radius: var(--r);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.01));
  opacity: 0; transform: translateY(20px);
  transition: opacity .6s var(--ease-out), transform .6s var(--ease-out), border-color .4s var(--ease);
}
.ladder__step.is-in { opacity: 1; transform: none; }
.ladder__step.is-hot {
  border-color: rgba(0,229,255,.45);
  background: linear-gradient(180deg, rgba(0,229,255,.12), rgba(77,124,255,.05));
  box-shadow: 0 20px 50px -28px rgba(0,229,255,.7);
}
.ladder__year {
  display: block; font-family: var(--font-num);
  font-size: 13px; letter-spacing: .16em; color: var(--cyan); margin-bottom: 8px;
}
.ladder__step b { display: block; font-size: clamp(17px, 2.2vw, 21px); margin-bottom: 6px; }
.ladder__step em { font-style: normal; font-size: 13px; color: var(--text-mute); }

/* 数字指标 */
.metrics {
  display: grid; grid-template-columns: repeat(4, minmax(0,1fr));
  gap: 1px; background: var(--line);
  border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden;
  margin-bottom: 48px;
}
.metric {
  background: rgba(8,12,20,.75);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  padding: 34px 26px;
  transition: background .4s var(--ease);
}
.metric:hover { background: rgba(0,229,255,.06); }
.metric__num {
  font-family: var(--font-num);
  font-size: clamp(30px, 4vw, 46px); font-weight: 800; line-height: 1.05;
  display: flex; align-items: baseline; gap: 6px; flex-wrap: wrap;
  background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent;
  margin-bottom: 14px;
}
.metric__num i { font-style: normal; font-size: .42em; letter-spacing: .04em; }
.metric__label { font-size: 14.5px; font-weight: 600; margin-bottom: 6px; }
.metric__src { font-size: 12px; color: var(--text-mute); }

/* 柱状图（带刻度轴） */
.chart {
  margin: 0 0 40px; padding: 32px 30px 24px;
  border: 1px solid var(--line); border-radius: var(--r-lg);
  background: linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.015));
}
.chart__head { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; margin-bottom: 34px; flex-wrap: wrap; }
.chart__head h3 { font-size: 20px; }
.chart__head p { font-size: 12.5px; color: var(--text-mute); }

.chart__plot { position: relative; height: 250px; padding-left: 34px; margin-bottom: 46px; }
.chart__grid { position: absolute; left: 34px; right: 0; top: 0; bottom: 0; }
.chart__grid li {
  position: absolute; left: 0; right: 0; bottom: var(--p); height: 1px;
  background: rgba(255,255,255,.07);
}
.chart__grid li:first-child { background: var(--line-strong); }
.chart__axis { position: absolute; left: 0; top: 0; bottom: 0; width: 34px; }
.chart__axis span {
  position: absolute; right: 10px; bottom: var(--p);
  transform: translateY(50%);
  font-family: var(--font-num); font-size: 11.5px; font-weight: 700;
  color: var(--text-mute);
}

.chart__bars {
  position: relative; height: 100%;
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(12px, 3vw, 36px);
}
.chart__bar { position: relative; height: 100%; display: flex; align-items: flex-end; justify-content: center; }
.chart__col {
  width: min(100%, 92px); height: 0;
  border-radius: 12px 12px 3px 3px;
  background: var(--grad-soft);
  border: 1px solid rgba(0,229,255,.42);
  border-bottom: none;
  position: relative; overflow: hidden;
  box-shadow: inset 0 0 30px rgba(0,229,255,.14);
  transition: height 1.3s var(--ease-out);
}
.chart__bar.is-in .chart__col { height: var(--h); }
.chart__col::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(255,255,255,.3), transparent 45%);
}
.chart__col::after {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 3px;
  background: var(--cyan); box-shadow: 0 0 16px rgba(0,229,255,.9);
}
.chart__bar.is-last .chart__col {
  background: var(--grad);
  border-color: transparent;
  box-shadow: 0 0 46px -8px rgba(0,229,255,.9);
}
.chart__bar.is-last .chart__col::after { background: #fff; }

.chart__val {
  position: absolute; left: -12%; right: -12%; bottom: calc(var(--h) + 12px);
  text-align: center;
  font-family: var(--font-num); font-size: clamp(17px, 2.5vw, 28px);
  font-weight: 800; line-height: 1; color: #fff;
  display: flex; align-items: baseline; justify-content: center; gap: 4px;
  opacity: 0; transform: translateY(10px);
  transition: opacity .5s var(--ease) .55s, transform .5s var(--ease) .55s;
}
.chart__val em {
  font-style: normal; font-size: 11px; font-weight: 600;
  color: var(--cyan); letter-spacing: .04em;
}
.chart__bar.is-in .chart__val { opacity: 1; transform: none; }
.chart__bar.is-last .chart__val {
  background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.chart__bar.is-last .chart__val em { -webkit-text-fill-color: var(--cyan); color: var(--cyan); }

.chart__yr {
  position: absolute; left: 0; right: 0; top: calc(100% + 14px);
  text-align: center; font-family: var(--font-num);
  font-size: 14px; font-weight: 600; color: var(--text-mute);
}
.chart__bar.is-last .chart__yr { color: var(--cyan); }

.chart__src {
  margin-top: 6px; text-align: center;
  font-size: 12px; color: var(--text-mute); line-height: 1.7;
}

/* 引用 */
.quote {
  position: relative; padding: 36px 38px;
  border-left: 2px solid transparent;
  border-image: var(--grad) 1;
  background: linear-gradient(90deg, rgba(0,229,255,.07), transparent 70%);
  border-radius: 0 var(--r) var(--r) 0;
}
.quote__mark { color: rgba(0,229,255,.35); margin-bottom: 14px; }
.quote p { font-size: clamp(15px, 1.7vw, 18px); line-height: 1.95; color: var(--text-dim); }
.quote b { color: var(--cyan); }

/* ---------- 12. 自研平台 ---------- */
.sec--platform { background: linear-gradient(180deg, transparent, rgba(123,92,255,.05), transparent); }
.platform { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
.platform__feats { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 18px; margin-top: 34px; }
.platform__feats li { display: flex; gap: 14px; align-items: flex-start; }
.platform__feats li > span {
  flex: none; width: 9px; height: 9px; margin-top: 9px;
  border-radius: 50%; background: var(--grad);
  box-shadow: 0 0 12px rgba(0,229,255,.8);
}
.platform__feats b { display: block; font-size: 15px; margin-bottom: 3px; }
.platform__feats p { font-size: 13px; color: var(--text-mute); line-height: 1.65; }

.platform__viz { position: relative; display: grid; gap: 34px; justify-items: center; }
.radar {
  position: relative; width: min(100%, 340px); aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,229,255,.09), transparent 70%);
  display: grid; place-items: center;
}
.radar__ring {
  position: absolute; border-radius: 50%;
  border: 1px solid rgba(0,229,255,.22);
}
.radar__ring--1 { inset: 0; }
.radar__ring--2 { inset: 17%; border-color: rgba(0,229,255,.18); }
.radar__ring--3 { inset: 34%; border-color: rgba(0,229,255,.14); border-style: dashed; }
.radar__sweep {
  position: absolute; inset: 0; border-radius: 50%;
  background: conic-gradient(from 0deg, rgba(0,229,255,.42), rgba(0,229,255,0) 62deg, transparent 360deg);
  animation: sweep 3.6s linear infinite;
}
@keyframes sweep { to { transform: rotate(360deg); } }
.radar__core {
  width: 46px; height: 46px; border-radius: 50%;
  background: var(--grad); z-index: 3;
  box-shadow: 0 0 40px rgba(0,229,255,.9);
  animation: pulse 2.6s var(--ease) infinite;
}
@keyframes pulse { 50% { transform: scale(1.18); opacity: .8; } }
.radar__blip {
  position: absolute; width: 9px; height: 9px; border-radius: 50%;
  background: var(--cyan); box-shadow: 0 0 14px var(--cyan); z-index: 2;
}
.radar__blip--1 { top: 20%; left: 62%; animation: blink 3.6s 0s steps(1) infinite; }
.radar__blip--2 { top: 58%; left: 24%; animation: blink 3.6s .5s steps(1) infinite; }
.radar__blip--3 { top: 72%; left: 70%; animation: blink 3.6s 1s steps(1) infinite; }
@keyframes blink { 0%, 12% { opacity: 1; transform: scale(1); } 100% { opacity: .08; transform: scale(.6); } }

.pillars { display: grid; grid-template-columns: repeat(5, minmax(0,1fr)); gap: 10px; width: 100%; }
.pillars li {
  text-align: center; padding: 14px 6px;
  border: 1px solid var(--line); border-radius: var(--r-sm);
  background: rgba(255,255,255,.03);
  transition: all .35s var(--ease);
}
.pillars li:hover { border-color: rgba(0,229,255,.45); transform: translateY(-4px); background: rgba(0,229,255,.07); }
.pillars b { display: block; font-size: 14px; margin-bottom: 2px; }
.pillars span { font-size: 11.5px; color: var(--text-mute); }

/* ---------- 13. 关于我们 ---------- */
.honors { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 14px; margin-bottom: 72px; }
.honor {
  padding: 22px 24px; border-radius: var(--r);
  border: 1px solid var(--line);
  background: linear-gradient(140deg, rgba(0,229,255,.07), rgba(255,255,255,.02));
  transition: all .4s var(--ease);
}
.honor:hover { border-color: rgba(0,229,255,.4); transform: translateY(-5px); box-shadow: var(--glow-blue); }
.honor b { display: block; font-size: 16px; margin-bottom: 5px; }
.honor span { font-size: 12.5px; color: var(--text-mute); }

.timeline__title { font-size: 22px; margin-bottom: 30px; }
.timeline { margin-bottom: 78px; }
.timeline ol { position: relative; padding-left: 8px; }
.timeline ol::before {
  content: ""; position: absolute; left: 62px; top: 8px; bottom: 8px; width: 1px;
  background: linear-gradient(180deg, rgba(0,229,255,.7), rgba(77,124,255,.35), transparent);
}
.timeline li {
  position: relative; display: grid; grid-template-columns: 62px 1fr;
  gap: 34px; padding-bottom: 30px;
}
.timeline li::before {
  content: ""; position: absolute; left: 56px; top: 9px;
  width: 13px; height: 13px; border-radius: 50%;
  background: var(--bg); border: 2px solid var(--cyan);
  box-shadow: 0 0 14px rgba(0,229,255,.7);
  z-index: 1;
}
.timeline__year {
  font-family: var(--font-num); font-size: 17px; font-weight: 800;
  color: var(--cyan); text-align: right; padding-right: 6px; line-height: 1.5;
}
.timeline li b { display: block; font-size: 16.5px; margin-bottom: 4px; }
.timeline li p { font-size: 14px; color: var(--text-mute); line-height: 1.8; max-width: 62ch; }


/* ---------- 14. 联系 ---------- */
.sec--contact { padding-bottom: clamp(70px, 9vw, 120px); }

/* 联系面板：信息一屏聚合 */
.cpanel {
  --mx: 50%; --my: 50%;
  position: relative;
  max-width: 880px; margin-inline: auto;
  border: 1px solid var(--line); border-radius: var(--r-lg);
  background:
    radial-gradient(560px circle at var(--mx) var(--my), rgba(0,229,255,.09), transparent 60%),
    linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.015));
  overflow: hidden;
  transition: border-color .35s var(--ease);
}
.cpanel:hover { border-color: rgba(0,229,255,.35); }

.cline {
  display: flex; align-items: center; gap: 18px;
  padding: 22px 30px;
  border-bottom: 1px solid var(--line);
  color: inherit;
  transition: background .3s var(--ease);
  text-align: left;
  width: 100%;
}
.cline:last-child { border-bottom: none; }
a.cline:hover, button.cline:hover { background: rgba(0,229,255,.05); }

.cline__ico {
  flex: none; display: grid; place-items: center;
  width: 48px; height: 48px; border-radius: 14px;
  color: var(--cyan);
  background: linear-gradient(150deg, rgba(0,229,255,.16), rgba(77,124,255,.07));
  border: 1px solid rgba(0,229,255,.22);
}
.cline__body { flex: 1; min-width: 0; }
.cline__label { display: block; font-size: 12.5px; color: var(--text-mute); letter-spacing: .06em; margin-bottom: 3px; }
.cline__val {
  display: block;
  font-family: var(--font-num);
  font-size: clamp(17px, 2.2vw, 22px); font-weight: 700; line-height: 1.4;
  overflow-wrap: anywhere;
}
.cline__copy {
  flex: none; padding: 8px 16px; border-radius: 999px;
  font-size: 13px; font-weight: 600;
  border: 1px solid var(--line-strong); color: var(--text-dim);
  transition: all .25s var(--ease);
}
.cline__copy:hover { color: #04121a; background: var(--cyan); border-color: var(--cyan); }

/* 首行：电话（主行动） */
.cline--call {
  padding: 28px 30px;
  background:
    radial-gradient(560px circle at 8% 50%, rgba(0,229,255,.16), transparent 62%),
    linear-gradient(120deg, rgba(0,229,255,.07), transparent 65%);
}
.cline--call .cline__ico {
  width: 58px; height: 58px; border-radius: 17px;
  background: var(--grad); color: #04121a; border: none;
  box-shadow: 0 10px 30px -10px rgba(0,229,255,.85);
}
.cline--call .cline__label { color: var(--cyan); font-weight: 600; }
.cline--call .cline__val { font-size: clamp(24px, 3.6vw, 36px); font-weight: 800; letter-spacing: .01em; }
.cline__go { flex: none; color: var(--text-mute); transition: color .25s var(--ease), transform .25s var(--ease); }
a.cline:hover .cline__go { color: var(--cyan); transform: translate(2px, -2px); }

/* ---------- 15. 页脚 ---------- */
.foot {
  position: relative; z-index: 1;
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(0,229,255,.04), transparent);
  padding: 54px 0 28px;
}
.foot__inner { display: grid; grid-template-columns: 1.4fr .6fr; gap: 34px; align-items: start; }
.foot__brand strong { font-size: 18px; letter-spacing: .04em; }
.foot__brand p { font-size: 13.5px; color: var(--text-mute); margin-top: 8px; line-height: 1.8; }
.foot__links { display: grid; gap: 8px; justify-items: end; }
.foot__links a { font-size: 13.5px; color: var(--text-dim); transition: color .25s var(--ease); }
.foot__links a:hover { color: var(--cyan); }
.foot__bottom {
  display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap;
  margin-top: 40px; padding-top: 22px;
  border-top: 1px solid var(--line);
  font-size: 12.5px; color: var(--text-mute);
}

/* 返回顶部 / 提示 */
.totop {
  position: fixed; right: 24px; bottom: 26px; z-index: 100;
  width: 46px; height: 46px; border-radius: 50%;
  display: grid; place-items: center;
  border: 1px solid var(--line-strong);
  background: rgba(9,13,22,.85);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  color: var(--cyan);
  opacity: 0; visibility: hidden; transform: translateY(14px);
  transition: all .35s var(--ease);
}
.totop.is-on { opacity: 1; visibility: visible; transform: none; }
.totop:hover { border-color: rgba(0,229,255,.6); box-shadow: 0 10px 30px -10px rgba(0,229,255,.8); transform: translateY(-3px); }

/* 移动端常驻联系条（默认隐藏，桌面端不显示） */
.quickbar {
  position: fixed; left: 12px; right: 12px; bottom: calc(12px + env(safe-area-inset-bottom, 0px));
  z-index: 104; display: none; gap: 10px;
  padding: 8px; border-radius: 999px;
  background: rgba(9,13,22,.92);
  border: 1px solid var(--line-strong);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 20px 44px -20px rgba(0,0,0,.9);
  transform: translateY(120%); opacity: 0;
  pointer-events: none;
  transition: transform .4s var(--ease-out), opacity .3s var(--ease);
}
.quickbar.is-on { transform: none; opacity: 1; pointer-events: auto; }
.quickbar__btn {
  flex: 1; display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  padding: 12px 14px; border-radius: 999px;
  font-size: 15px; font-weight: 700; white-space: nowrap;
  border: 1px solid var(--line-strong); color: var(--text);
  background: rgba(255,255,255,.05);
}
.quickbar__btn--call { background: var(--grad); color: #04121a; border-color: transparent; box-shadow: 0 10px 26px -10px rgba(0,229,255,.8); }

@media (max-width: 860px) {
  .quickbar { display: flex; }
  .totop { bottom: calc(84px + env(safe-area-inset-bottom, 0px)); }
  .toast { bottom: calc(96px + env(safe-area-inset-bottom, 0px)); }
}

.toast {
  position: fixed; left: 50%; bottom: 40px; z-index: 200;
  transform: translate(-50%, 24px);
  padding: 12px 24px; border-radius: 999px;
  background: rgba(9,13,22,.95);
  border: 1px solid rgba(0,229,255,.4);
  color: var(--text); font-size: 14px;
  box-shadow: 0 20px 50px -20px rgba(0,0,0,.9);
  opacity: 0; visibility: hidden;
  transition: all .35s var(--ease);
}
.toast.is-on { opacity: 1; visibility: visible; transform: translate(-50%, 0); }

/* ---------- 16. 滚动揭示 ---------- */
.reveal {
  opacity: 0; transform: translateY(30px);
  transition: opacity .8s var(--ease-out), transform .8s var(--ease-out);
}
.reveal.is-in { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: .07s; }
.reveal[data-delay="2"] { transition-delay: .14s; }
.reveal[data-delay="3"] { transition-delay: .21s; }
.reveal[data-delay="4"] { transition-delay: .28s; }
.reveal[data-delay="5"] { transition-delay: .35s; }
.reveal[data-delay="6"] { transition-delay: .42s; }
.reveal[data-delay="7"] { transition-delay: .49s; }
.reveal[data-delay="8"] { transition-delay: .56s; }

/* ---------- 17. 响应式 ---------- */
@media (max-width: 1080px) {
  .dots { display: none; }
  .bento { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .card--wide { grid-column: span 2; }
  .metrics { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .platform { grid-template-columns: 1fr; gap: 44px; }
  .honors { grid-template-columns: repeat(2, minmax(0,1fr)); }
}

@media (max-width: 860px) {
  .nav__links { display: none; }
  .nav__burger { display: block; }
  .nav__right .btn--ghost { display: none; }
  .hero__stats { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .flow__list { grid-template-columns: repeat(2, minmax(0,1fr)); gap: 28px 20px; }
  .flow__list::before { display: none; }
  .chart__plot { height: 210px; }
  .foot__inner { grid-template-columns: 1fr; }
  .foot__links { justify-items: start; grid-auto-flow: column; grid-template-columns: repeat(3, auto); gap: 10px 18px; }
}

@media (max-width: 620px) {
  html { scroll-padding-top: 78px; }
  .wrap { width: calc(100% - 32px); }
  .bento { grid-template-columns: 1fr; }
  .card--wide { grid-column: span 1; }
  .metrics { grid-template-columns: 1fr; }
  .ladder__steps { grid-template-columns: 1fr; }
  .honors { grid-template-columns: 1fr; }
  .cline { padding: 18px 20px; gap: 14px; }
  .cline--call { padding: 22px 20px; }
  .cline--call .cline__ico { width: 48px; height: 48px; }
  .cline__act { display: none; }
  .chart { padding: 24px 16px 18px; }
  .chart__plot { height: 190px; padding-left: 26px; margin-bottom: 42px; }
  .chart__grid { left: 26px; }
  .chart__axis { width: 26px; }
  .chart__axis span { right: 6px; }
  .chart__src { font-size: 11px; }
  .flow__list { grid-template-columns: 1fr; }
  .hero { padding: 120px 0 100px; }
  .hero__cta .btn { flex: 1 1 100%; }
  .timeline ol::before { left: 8px; }
  .timeline li { grid-template-columns: 1fr; gap: 6px; padding-left: 34px; padding-bottom: 26px; }
  .timeline li::before { left: 3px; top: 8px; }
  .timeline__year { text-align: left; padding-right: 0; }
  .platform__feats { grid-template-columns: 1fr; }
  .pillars { grid-template-columns: repeat(3, minmax(0,1fr)); }
  .quote { padding: 26px 22px; }
  .foot__links { grid-auto-flow: row; grid-template-columns: repeat(2, auto); }
}

/* ---------- 18. 无障碍：降低动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
  .hero__title .line__i { animation: none; transform: none; opacity: 1; }
  .chart__bar.is-in i { height: var(--h); }
}

/* ---------- 19. 打印 ---------- */
@media print {
  .nav, .dots, .totop, .boot, .aurora, .hero__canvas, .progress, .mnav { display: none !important; }
  body { background: #fff; color: #000; }
}