/* =========================================================
   CISIKE 词司可 · 官网主样式
   设计体系参考 dashucang 项目（深蓝科技风 / 卡片网格 / 滚动揭示）
   ========================================================= */
:root {
  --brand: #2a63ff;
  --brand-600: #1e4fe0;
  --brand-2: #0ec5d7;
  --brand-soft: #ecf2ff;
  --ink: #0b1220;
  --ink-2: #3d4a61;
  --ink-3: #6d7a91;
  --line: #e6ebf3;
  --bg: #ffffff;
  --bg-alt: #f5f8fd;
  --dark: #060d1f;
  --dark-2: #0e1c3a;
  --ok: #10a56b;
  --warn: #f0a020;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 10px 30px rgba(11, 24, 56, .07);
  --shadow-lg: 0 24px 60px rgba(11, 24, 56, .13);
  --maxw: 1240px;
  --nav-h: 72px;
  --ease: cubic-bezier(.22, .68, .36, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 12px); }
body {
  margin: 0;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Yu Gothic UI", "Noto Sans JP", "Noto Sans KR",
    "Malgun Gothic", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4 { margin: 0; line-height: 1.25; font-weight: 700; letter-spacing: -.01em; }
p { margin: 0; }
button { font: inherit; cursor: pointer; }
input, select, textarea { font: inherit; color: inherit; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.grad {
  background: linear-gradient(100deg, #2a63ff 0%, #0ec5d7 60%, #21d4c2 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: 1px solid transparent; border-radius: 999px;
  padding: 12px 24px; font-weight: 600; font-size: 15px;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s, color .25s, border-color .25s;
  white-space: nowrap;
}
.btn--primary { background: linear-gradient(120deg, #2a63ff, #3f7bff); color: #fff; box-shadow: 0 8px 22px rgba(42, 99, 255, .28); }
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 14px 32px rgba(42, 99, 255, .34); }
.btn--ghost { background: rgba(255, 255, 255, .06); color: #fff; border-color: rgba(255, 255, 255, .34); }
.btn--ghost:hover { background: rgba(255, 255, 255, .14); transform: translateY(-2px); }
.btn--sm { padding: 9px 18px; font-size: 14px; }
.btn--lg { padding: 15px 32px; font-size: 16px; }
.btn--block { width: 100%; }

.badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 14px; border-radius: 999px; font-size: 13px; font-weight: 500;
  background: var(--brand-soft); color: var(--brand); border: 1px solid rgba(42, 99, 255, .15);
}
.badge--glass { background: rgba(255, 255, 255, .08); color: #cfe2ff; border: 1px solid rgba(255, 255, 255, .2); backdrop-filter: blur(6px); }
.badge .dot { width: 7px; height: 7px; border-radius: 50%; background: #35e08a; box-shadow: 0 0 0 4px rgba(53, 224, 138, .22); }

/* ---------- 导航 ---------- */
.nav {
  position: fixed; inset: 0 0 auto 0; height: var(--nav-h); z-index: 60;
  background: rgba(255, 255, 255, .82); backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent; transition: border-color .3s, box-shadow .3s, background .3s;
}
.nav.is-stuck { border-bottom-color: var(--line); box-shadow: 0 6px 24px rgba(11, 24, 56, .05); }
.nav__inner { height: var(--nav-h); display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.logo { display: flex; align-items: center; gap: 10px; }
.logo__text { display: flex; flex-direction: column; line-height: 1.1; }
.logo__text b { font-size: 17px; letter-spacing: .08em; }
.logo__text em { font-style: normal; font-size: 11px; color: var(--ink-3); letter-spacing: .16em; }
.nav__menu { display: flex; gap: 2px; }
.nav__link {
  position: relative; padding: 9px 12px; border-radius: 8px;
  font-size: 14px; color: var(--ink-2); font-weight: 500; transition: color .2s, background .2s;
}
.nav__link:hover { color: var(--brand); background: var(--brand-soft); }
.nav__link.is-active { color: var(--brand); }
.nav__link.is-active::after {
  content: ""; position: absolute; left: 12px; right: 12px; bottom: 2px;
  height: 2px; border-radius: 2px; background: var(--brand);
}
.nav__actions { display: flex; align-items: center; gap: 12px; }
.lang { display: flex; background: var(--bg-alt); border: 1px solid var(--line); border-radius: 999px; padding: 3px; }
.lang__btn {
  border: 0; background: transparent; color: var(--ink-3);
  padding: 5px 10px; border-radius: 999px; font-size: 12.5px; font-weight: 600; transition: .25s;
}
.lang__btn.is-active { background: var(--brand); color: #fff; }
.nav__burger { display: none; width: 40px; height: 40px; border: 1px solid var(--line); border-radius: 10px; background: #fff; padding: 11px 10px; }
.nav__burger span { display: block; height: 2px; background: var(--ink); border-radius: 2px; margin: 3px 0; transition: .25s; }

/* ---------- HERO ---------- */
.hero { position: relative; padding: calc(var(--nav-h) + 72px) 0 0; background: var(--dark); color: #fff; overflow: hidden; }
.hero__bg { position: absolute; inset: 0; overflow: hidden; }
.hero__grid {
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, .05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .05) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, #000 40%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, #000 40%, transparent 100%);
}
.hero__glow { position: absolute; border-radius: 50%; filter: blur(90px); opacity: .55; }
.hero__glow--1 { width: 520px; height: 520px; background: #1e4fe0; top: -180px; left: -120px; }
.hero__glow--2 { width: 460px; height: 460px; background: #0ec5d7; bottom: -200px; right: -80px; opacity: .32; }
.hero__inner {
  position: relative; display: grid; grid-template-columns: 1.12fr .88fr; gap: 48px;
  align-items: center; padding-bottom: 84px;
}
.hero__title { margin: 22px 0 18px; font-size: clamp(32px, 4.8vw, 58px); letter-spacing: -.02em; }
.hero__title .grad { display: block; background: linear-gradient(100deg, #6ecbff 0%, #21d4c2 60%, #ffd166 100%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero__desc { max-width: 620px; font-size: 17px; color: #b8c6df; }
.hero__btns { display: flex; gap: 14px; margin: 30px 0 26px; flex-wrap: wrap; }
.hero__points { display: flex; gap: 10px 26px; flex-wrap: wrap; color: #9fb2d0; font-size: 14px; }
.hero__points li { display: flex; align-items: center; gap: 8px; }
.hero__points li::before { content: ""; width: 16px; height: 16px; border-radius: 50%; background: rgba(33, 212, 194, .16); border: 3px solid #21d4c2; }

.hero__visual { display: flex; justify-content: center; }
.orbit {
  position: relative; width: 420px; height: 420px; display: grid; place-items: center;
  --r1: 200px; --r2: 150px; --r3: 105px;
}
.orbit__ring { position: absolute; border: 1px dashed rgba(255, 255, 255, .16); border-radius: 50%; }
.orbit__ring--1 {
  width: 400px; height: 400px;
  animation: spin 24s linear infinite, ringGlow 5.5s ease-in-out infinite;
}
.orbit__ring--2 {
  width: 300px; height: 300px; border-style: solid; border-color: rgba(255, 255, 255, .09);
  animation: spin 15s linear infinite reverse, ringGlow2 4.5s ease-in-out infinite;
}
.orbit__ring--3 { width: 210px; height: 210px; animation: spin 11s linear infinite; }

/* 扩散光波 */
.orbit__wave {
  position: absolute; width: 210px; height: 210px; border-radius: 50%;
  border: 1px solid rgba(123, 227, 255, .55); pointer-events: none;
  animation: orbitWave 3.6s ease-out infinite;
}
.orbit__wave--2 { animation-delay: 1.8s; }

/* 环绕卫星 */
.orbit__sat { position: absolute; inset: 0; pointer-events: none; }
.orbit__sat i {
  position: absolute; top: 50%; left: 50%; width: 11px; height: 11px; border-radius: 50%;
  background: #7be3ff; box-shadow: 0 0 16px 4px rgba(123, 227, 255, .75);
}
.orbit__sat--1 { animation: spin 10s linear infinite; }
.orbit__sat--1 i { transform: translate(-50%, -50%) translateY(calc(-1 * var(--r1))); }
.orbit__sat--2 { animation: spin 7s linear infinite reverse; }
.orbit__sat--2 i {
  width: 9px; height: 9px; background: #21d4c2; box-shadow: 0 0 14px 3px rgba(33, 212, 194, .7);
  transform: translate(-50%, -50%) translateY(calc(-1 * var(--r2)));
}
.orbit__sat--3 { animation: spin 5s linear infinite; }
.orbit__sat--3 i {
  width: 7px; height: 7px; background: #ffd166; box-shadow: 0 0 12px 3px rgba(255, 209, 102, .7);
  transform: translate(-50%, -50%) translateY(calc(-1 * var(--r3)));
}

.orbit__core {
  position: relative; filter: drop-shadow(0 18px 40px rgba(14, 197, 215, .35));
  animation: float 5s ease-in-out infinite;
}
.orbit__core::after {
  content: ""; position: absolute; inset: -6px; border-radius: 50%; pointer-events: none;
  background: radial-gradient(circle at 32% 26%, rgba(255, 255, 255, .5), rgba(255, 255, 255, 0) 42%);
  animation: spin 8s linear infinite;
}
.orbit__chip {
  position: absolute; padding: 7px 14px; border-radius: 999px; font-size: 12.5px; font-weight: 600;
  background: rgba(255, 255, 255, .1); border: 1px solid rgba(255, 255, 255, .22); color: #dbe8ff;
  backdrop-filter: blur(8px); white-space: nowrap;
  animation: chipFloat 6.5s ease-in-out infinite;
}
.orbit__chip--a { top: 34px; left: -10px; }
.orbit__chip--b { bottom: 62px; right: -18px; animation-duration: 8s; animation-delay: -2.5s; }
.orbit__chip--c { bottom: 6px; left: 30px; animation-duration: 7.2s; animation-delay: -4s; }

@keyframes spin { to { transform: rotate(360deg); } }
@keyframes float {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-30px) scale(1.06); }
}
@keyframes orbitWave {
  0% { transform: scale(.5); opacity: .85; }
  100% { transform: scale(1.9); opacity: 0; }
}
@keyframes ringGlow {
  0%, 100% { border-color: rgba(255, 255, 255, .16); }
  50% { border-color: rgba(123, 227, 255, .6); }
}
@keyframes ringGlow2 {
  0%, 100% { border-color: rgba(255, 255, 255, .09); }
  50% { border-color: rgba(33, 212, 194, .45); }
}
@keyframes chipFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-16px); }
}

.hero__stats {
  position: relative; display: grid; grid-template-columns: repeat(5, 1fr);
  gap: 8px; padding: 26px 10px; margin-bottom: -60px;
  background: #fff; border-radius: var(--radius); box-shadow: var(--shadow-lg);
}
.hstat { text-align: center; padding: 8px 6px; border-right: 1px solid var(--line); }
.hstat:last-child { border-right: 0; }
.hstat b { display: block; font-size: clamp(24px, 3vw, 34px); color: var(--brand); letter-spacing: -.02em; }
.hstat span { font-size: 13px; color: var(--ink-3); }

/* ---------- 通用区块 ---------- */
.section { padding: 108px 0; position: relative; }
.section--alt { background: var(--bg-alt); }
.section--tight { padding: 56px 0; }
#services { padding-top: 160px; }
.sec-head { max-width: 780px; margin: 0 auto 52px; text-align: center; }
.sec-tag {
  display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: .2em;
  color: var(--brand); background: var(--brand-soft); padding: 6px 14px; border-radius: 999px;
}
.sec-tag--light { background: rgba(255, 255, 255, .14); color: #cfe2ff; }
.sec-title { margin: 16px 0 14px; font-size: clamp(25px, 3.3vw, 38px); }
.sec-desc { color: var(--ink-3); font-size: 16px; }

.grid { display: grid; gap: 22px; }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }

/* ---------- 能力 / 服务卡片 ---------- */
.cap {
  position: relative; padding: 30px 28px; background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); overflow: hidden; transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s;
}
.cap::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 3px;
  background: linear-gradient(90deg, var(--brand), var(--brand-2)); transform: scaleX(0); transform-origin: left; transition: transform .4s var(--ease);
}
.cap:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: rgba(42, 99, 255, .22); }
.cap:hover::before { transform: scaleX(1); }
.cap__icon {
  width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center;
  background: linear-gradient(140deg, var(--brand-soft), #e3f6ff); color: var(--brand); margin-bottom: 18px;
}
.cap__title { font-size: 19px; margin-bottom: 10px; }
.cap__desc { color: var(--ink-3); font-size: 14.5px; min-height: 66px; }
.cap__tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.cap__tags span { font-size: 12.5px; color: var(--ink-2); background: var(--bg-alt); border: 1px solid var(--line); padding: 4px 10px; border-radius: 6px; }

/* ---------- Tabs ---------- */
.tabs { display: flex; justify-content: center; gap: 10px; flex-wrap: wrap; margin-bottom: 34px; }
.tab {
  padding: 10px 20px; border-radius: 999px; border: 1px solid var(--line);
  background: #fff; color: var(--ink-2); font-size: 14.5px; font-weight: 500; transition: .25s;
}
.tab:hover { border-color: rgba(42, 99, 255, .4); color: var(--brand); }
.tab.is-active { background: var(--brand); border-color: var(--brand); color: #fff; box-shadow: 0 8px 20px rgba(42, 99, 255, .22); }

/* ---------- 产品卡片 ---------- */
.prod { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; display: flex; flex-direction: column; transition: transform .35s var(--ease), box-shadow .35s var(--ease); }
.prod:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.prod__media { height: 158px; position: relative; overflow: hidden; }
.prod__media svg { width: 100%; height: 100%; }
.prod__cat { position: absolute; top: 12px; left: 12px; background: rgba(255, 255, 255, .92); color: var(--brand); font-size: 12px; font-weight: 600; padding: 4px 10px; border-radius: 6px; }
.prod__body { padding: 20px 22px 22px; display: flex; flex-direction: column; flex: 1; }
.prod__name { font-size: 18px; margin-bottom: 8px; }
.prod__desc { color: var(--ink-3); font-size: 14.5px; flex: 1; }
.prod__specs { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.prod__specs span { font-size: 12.5px; background: var(--brand-soft); color: var(--brand-600); padding: 4px 10px; border-radius: 6px; font-weight: 500; }
.prod__link {
  display: inline-flex; align-items: center; gap: 6px; margin-top: 16px; padding-top: 14px;
  border-top: 1px dashed var(--line); font-size: 14px; font-weight: 600; color: var(--brand);
}
.prod__link:hover { gap: 10px; }
.prod__link svg { transition: transform .25s var(--ease); }
.prod__link:hover svg { transform: translateX(3px); }

/* ---------- 技术优势 ---------- */
.adv {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 24px; transition: .3s var(--ease);
}
.adv:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: rgba(42, 99, 255, .25); }
.adv__head { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.adv__icon { width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center; background: linear-gradient(140deg, var(--brand-soft), #e3f9ff); color: var(--brand); flex: none; }
.adv__title { font-size: 17px; }
.adv__list li { position: relative; padding-left: 22px; font-size: 14px; color: var(--ink-2); padding-bottom: 7px; }
.adv__list li::before {
  content: ""; position: absolute; left: 4px; top: 9px; width: 7px; height: 7px;
  border-radius: 2px; background: linear-gradient(135deg, var(--brand), var(--brand-2)); transform: rotate(45deg);
}
.adv__list li:last-child { padding-bottom: 0; }

.scale-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-bottom: 34px; }
.sstat { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 24px; text-align: left; }
.sstat b { display: block; font-size: 32px; color: var(--ink); letter-spacing: -.02em; }
.sstat b i { font-style: normal; color: var(--brand); font-size: 20px; margin-left: 2px; }
.sstat span { font-size: 14px; color: var(--ink-3); }
.sstat p { font-size: 13px; color: var(--ink-3); margin-top: 8px; padding-top: 10px; border-top: 1px dashed var(--line); }

/* ---------- 解决方案 ---------- */
.sol {
  position: relative; padding: 26px 24px; border-radius: var(--radius); overflow: hidden;
  background: linear-gradient(160deg, #0b2a63, #071631 70%); color: #fff; transition: transform .35s var(--ease), box-shadow .35s var(--ease);
}
.sol:hover { transform: translateY(-6px); box-shadow: 0 24px 50px rgba(7, 22, 49, .28); }
.sol::after {
  content: ""; position: absolute; width: 180px; height: 180px; right: -70px; top: -70px; border-radius: 50%;
  background: radial-gradient(circle, rgba(14, 197, 215, .32), transparent 68%);
}
.sol__tag { font-size: 12px; letter-spacing: .14em; color: #7be3ff; font-weight: 700; }
.sol__title { font-size: 18px; margin: 10px 0 10px; position: relative; }
.sol__desc { font-size: 14px; color: #a9bcd8; position: relative; }
.sol__links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; position: relative; }
.sol__links a {
  font-size: 13px; font-weight: 600; color: #dbe8ff; border: 1px solid rgba(255, 255, 255, .22);
  padding: 6px 14px; border-radius: 999px; transition: .25s;
}
.sol__links a:hover { background: rgba(255, 255, 255, .12); color: #fff; border-color: rgba(255, 255, 255, .4); }

/* ---------- 客户案例 ---------- */
.proj { position: relative; border-radius: var(--radius); overflow: hidden; color: #fff; min-height: 300px; display: flex; flex-direction: column; justify-content: flex-end; padding: 26px; }
.proj__bg { position: absolute; inset: 0; z-index: 0; }
.proj__bg svg { width: 100%; height: 100%; }
.proj::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(4, 12, 30, .1) 0%, rgba(4, 12, 30, .82) 78%); z-index: 1; }
.proj > * { position: relative; z-index: 2; }
.proj__loc { font-size: 12.5px; font-weight: 600; letter-spacing: .06em; color: #a9e5ff; margin-bottom: 8px; display: flex; align-items: center; gap: 6px; }
.proj__title { font-size: 19px; margin-bottom: 10px; }
.proj__desc { font-size: 14px; color: rgba(255, 255, 255, .78); }
.proj__metrics { display: flex; gap: 20px; margin-top: 18px; padding-top: 16px; border-top: 1px solid rgba(255, 255, 255, .18); }
.proj__metrics div b { display: block; font-size: 19px; color: #7be3ff; }
.proj__metrics div span { font-size: 12px; color: rgba(255, 255, 255, .7); }

/* ---------- 时间线 ---------- */
.timeline { position: relative; margin-top: 20px; }
.timeline::before {
  content: ""; position: absolute; left: 0; right: 0; top: 32px; height: 2px;
  background: linear-gradient(90deg, var(--line) 60%, transparent);
}
.tl-track { display: grid; grid-auto-flow: column; gap: 14px; overflow-x: auto; padding: 34px 2px 8px; scrollbar-width: thin; }
.tl-item { min-width: 190px; position: relative; padding-top: 22px; }
.tl-item::before {
  content: ""; position: absolute; top: -8px; left: 0; width: 14px; height: 14px; border-radius: 50%;
  background: #fff; border: 3px solid var(--brand); box-shadow: 0 0 0 4px rgba(42, 99, 255, .12);
}
.tl-year { font-size: 20px; font-weight: 800; color: var(--brand); letter-spacing: -.01em; }
.tl-text { font-size: 13.5px; color: var(--ink-2); margin-top: 4px; }

/* ---------- 客户墙 ---------- */
.clients__title { text-align: center; font-size: 14px; letter-spacing: .16em; color: var(--ink-3); font-weight: 600; margin-bottom: 24px; }
.clients { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }
.client {
  padding: 12px 22px; border: 1px solid var(--line); border-radius: 10px; background: #fff;
  font-weight: 700; color: #93a1b8; font-size: 15px; letter-spacing: .06em; transition: .3s;
}
.client:hover { color: var(--brand); border-color: rgba(42, 99, 255, .35); transform: translateY(-2px); }

/* ---------- 联系 / 表单 ---------- */
.cta-section { background: linear-gradient(140deg, #071631 0%, #0b2a63 55%, #12459f 100%); color: #fff; }
.cta { display: grid; grid-template-columns: 1fr 520px; gap: 56px; align-items: start; }
.cta__title { margin: 16px 0 14px; font-size: clamp(24px, 3vw, 34px); }
.cta__desc { color: #b8c6df; font-size: 15.5px; max-width: 520px; }
.ccards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; margin-top: 32px; }
.ccard { border-left: 2px solid rgba(255, 255, 255, .22); padding-left: 14px; }
.ccard b { display: block; font-size: 14px; color: #9fb2d0; font-weight: 600; letter-spacing: .04em; }
.ccard span { display: block; font-size: 16px; font-weight: 700; margin-top: 2px; }
.ccard a:hover { color: #7be3ff; }

.form { background: #fff; border-radius: 18px; padding: 30px; box-shadow: var(--shadow-lg); color: var(--ink); }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.field { display: block; margin-bottom: 14px; }
.field > span { display: block; font-size: 13px; font-weight: 600; color: var(--ink-2); margin-bottom: 6px; }
.field input, .field select, .field textarea {
  width: 100%; padding: 11px 14px; border: 1px solid var(--line); border-radius: 10px;
  background: #fbfcfe; outline: none; transition: .2s; font-size: 14.5px;
}
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--brand); background: #fff; box-shadow: 0 0 0 4px rgba(42, 99, 255, .1);
}
.field textarea { resize: vertical; }
.field.is-error input, .field.is-error select, .field.is-error textarea { border-color: #e5484d; background: #fff5f5; }
.form__tip { font-size: 12.5px; color: var(--ink-3); margin-top: 12px; text-align: center; }
.form__msg { margin-top: 12px; font-size: 14px; text-align: center; font-weight: 600; min-height: 20px; }
.form__msg.is-ok { color: var(--ok); }
.form__msg.is-err { color: #e5484d; }

/* ---------- 工作时间 ---------- */
.hours {
  margin-top: 26px; padding: 18px 20px; border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, .14); background: rgba(255, 255, 255, .06);
}
.hours__title { display: flex; align-items: center; gap: 8px; font-size: 15px; margin-bottom: 13px; }
.hours__icon { width: 18px; height: 18px; flex: none; color: #7be3ff; }
.hours__list { list-style: none; margin: 0 0 11px; padding: 0; display: grid; gap: 9px; }
.hours__list li {
  display: flex; align-items: baseline; justify-content: space-between; gap: 16px;
  padding-bottom: 9px; border-bottom: 1px dashed rgba(255, 255, 255, .12);
}
.hours__list li:last-child { padding-bottom: 0; border-bottom: 0; }
.hours__label { font-size: 14px; color: #9fb2d0; }
.hours__time { font-size: 16px; font-weight: 700; color: #fff; font-variant-numeric: tabular-nums; letter-spacing: .02em; }
.hours__note { font-size: 12.5px; color: #8fa3c2; margin: 0; }

.subscribe { margin-top: 24px; padding-top: 20px; border-top: 1px solid rgba(255, 255, 255, .14); }
.subscribe h4 { font-size: 15px; margin-bottom: 4px; }
.subscribe p { font-size: 13.5px; color: #9fb2d0; margin-bottom: 12px; }
.subscribe__row { display: flex; gap: 10px; flex-wrap: wrap; }
.subscribe input {
  flex: 1; min-width: 180px; padding: 11px 14px; border-radius: 10px; font-size: 14.5px;
  border: 1px solid rgba(255, 255, 255, .2); background: rgba(255, 255, 255, .08); color: #fff; outline: none;
}
.subscribe input::placeholder { color: #8fa3c2; }
.subscribe input:focus { border-color: #7be3ff; background: rgba(255, 255, 255, .14); }
.subscribe .btn { flex: none; }

/* ---------- 页脚 ---------- */
.footer { background: var(--dark); color: #93a4c0; padding: 66px 0 26px; }
.footer__inner { display: grid; grid-template-columns: 320px 1fr; gap: 42px; }
.logo--footer .logo__text b { color: #fff; }
.logo--footer .logo__text em { color: #7b8ca8; }
.footer__brand p { margin-top: 16px; font-size: 14px; max-width: 320px; }
.footer__cols { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; }
.fcol h4 { color: #fff; font-size: 14.5px; margin-bottom: 14px; }
.fcol a, .fcol span { display: block; font-size: 13.5px; padding: 4px 0; transition: color .2s; }
.fcol a:hover { color: #7be3ff; }
.footer__bottom {
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  margin-top: 46px; padding-top: 22px; border-top: 1px solid rgba(255, 255, 255, .08); font-size: 13px;
}
.footer__bottom a:hover { color: #7be3ff; }

/* ---------- 回到顶部 ---------- */
.to-top {
  position: fixed; right: 24px; bottom: 28px; z-index: 50; width: 44px; height: 44px; border-radius: 50%;
  border: 1px solid var(--line); background: #fff; color: var(--brand); font-size: 18px;
  box-shadow: var(--shadow); opacity: 0; pointer-events: none; transition: .3s;
}
.to-top.is-show { opacity: 1; pointer-events: auto; }

/* ---------- 滚动揭示 ---------- */
html.anim-on .reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
html.anim-on .reveal.is-in { opacity: 1; transform: none; }

/* ---------- 内容球（企业系统） ---------- */
.sphere-side { text-align: center; }
.sphere-side__title { margin: 14px 0 8px; font-size: clamp(19px, 2.2vw, 24px); }
.sphere-side__desc { color: #b8c6df; font-size: 14px; max-width: 460px; margin: 0 auto; }
.sphere-wrap { position: relative; height: 430px; margin: 6px auto 0; max-width: 520px; }
.sphere { position: absolute; inset: 0; }
.sphere::before {
  content: ""; position: absolute; left: 50%; top: 50%; width: 62%; padding-bottom: 62%;
  transform: translate(-50%, -50%); border-radius: 50%;
  background: radial-gradient(circle at 38% 32%, rgba(126, 227, 255, .18), rgba(42, 99, 255, .1) 55%, transparent 72%);
}
.tag3d {
  position: absolute; left: 50%; top: 50%; white-space: nowrap;
  padding: 5px 12px; border-radius: 999px; font-weight: 600; line-height: 1.5;
  color: #cfe2ff; background: rgba(255, 255, 255, .07);
  border: 1px solid rgba(255, 255, 255, .18); will-change: transform, opacity;
  transition: color .25s, background .25s, border-color .25s;
}
.tag3d:hover { color: #04122c; background: #7be3ff; border-color: #7be3ff; }
.sphere-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-top: 10px; }

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .hero__inner { grid-template-columns: 1fr; }
  .hero__visual { order: -1; }
  .orbit { width: 320px; height: 320px; --r1: 155px; --r2: 126px; --r3: 96px; }
  .orbit__ring--1 { width: 310px; height: 310px; }
  .orbit__sat i { width: 9px; height: 9px; }
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .scale-layout, .cta { grid-template-columns: 1fr; }
  .cta { gap: 36px; }
  .footer__inner { grid-template-columns: 1fr; }
}
@media (max-width: 860px) {
  .nav__menu {
    position: fixed; top: var(--nav-h); left: 0; right: 0; background: #fff; flex-direction: column;
    padding: 14px 20px 22px; border-bottom: 1px solid var(--line); box-shadow: var(--shadow);
    transform: translateY(-8px); opacity: 0; pointer-events: none; transition: .25s var(--ease);
  }
  .nav__menu.is-open { transform: none; opacity: 1; pointer-events: auto; }
  .nav__burger { display: block; }
  .nav__actions .btn { display: none; }
  .hero__stats { grid-template-columns: repeat(2, 1fr); gap: 0; }
  .hstat { border-right: 0; border-bottom: 1px solid var(--line); }
  .scale-stats { grid-template-columns: repeat(2, 1fr); }
  .footer__cols { grid-template-columns: repeat(2, 1fr); }
  .section { padding: 76px 0; }
  #services { padding-top: 130px; }
  .sphere-wrap { height: 360px; }
}
@media (max-width: 560px) {
  .grid--3, .grid--2, .scale-stats { grid-template-columns: 1fr; }
  .form__row { grid-template-columns: 1fr; }
  .ccards { grid-template-columns: 1fr; }
  .orbit { width: 280px; height: 280px; --r1: 136px; --r2: 104px; --r3: 80px; }
  .orbit__ring--1 { width: 272px; height: 272px; }
  .orbit__ring--2 { width: 208px; height: 208px; }
  .orbit__chip { font-size: 11.5px; padding: 6px 11px; }
  .orbit__sat i { width: 8px; height: 8px; }
  .footer__cols { grid-template-columns: 1fr; }
  .sphere-wrap { height: 300px; }
  .tag3d { padding: 4px 10px; }
  .hours { padding: 15px 16px; }
  .hours__time { font-size: 15px; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  html { scroll-behavior: auto; }
}