@charset "utf-8";
/* ==========================================================================
   泉涌科技 SPRINFO · 官网全局样式
   湖南泉涌信息科技有限公司
   ========================================================================== */

/* ---------- 1. 设计令牌 ---------- */
:root{
  /* 品牌色 —— 沿用 SPRINFO 红 + 科技蓝双主色 */
  --brand-red:#e2231a;
  --brand-red-dark:#b81c14;
  --blue-900:#0a1f44;
  --blue-800:#102c5c;
  --blue-700:#153a76;
  --blue-600:#1a4d9e;
  --blue-500:#2064c8;
  --blue-400:#3b82e0;
  --blue-300:#7db0ee;
  --blue-100:#e3edfb;
  --blue-50:#f2f7fe;

  --cyan-500:#0aa9c8;
  --cyan-100:#dcf3f8;

  --green-500:#1a9c6c;
  --green-100:#dff5ec;
  --amber-500:#d98b0b;
  --amber-100:#fdf1d9;
  --violet-500:#6b4fd0;
  --violet-100:#eae5fa;

  /* 中性色 */
  --ink-900:#141c2b;
  --ink-800:#1f2a3d;
  --ink-700:#33415c;
  --ink-600:#4d5c78;
  --ink-500:#6b7a96;
  --ink-400:#93a0b8;
  --ink-300:#c3ccdc;
  --ink-200:#dfe5ef;
  --ink-100:#eef2f8;
  --ink-50:#f6f8fc;
  --white:#ffffff;

  /* 语义 */
  --bg-body:#ffffff;
  --bg-soft:var(--ink-50);
  --text:var(--ink-800);
  --text-soft:var(--ink-500);
  --border:var(--ink-200);
  --shadow-sm:0 1px 2px rgba(16,44,92,.06),0 2px 8px rgba(16,44,92,.05);
  --shadow-md:0 4px 12px rgba(16,44,92,.08),0 12px 28px rgba(16,44,92,.07);
  --shadow-lg:0 10px 24px rgba(16,44,92,.10),0 24px 56px rgba(16,44,92,.10);

  /* 尺寸 */
  --wrap:1200px;
  --radius-s:8px;
  --radius:14px;
  --radius-l:20px;
  --header-h:72px;

  --ease:cubic-bezier(.4,0,.2,1);
}

/* ---------- 2. 基础重置 ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",
              -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg-body);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5{margin:0;font-weight:700;line-height:1.3;color:var(--ink-900);letter-spacing:.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease);}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit;}
table{border-collapse:collapse;width:100%;}
:focus-visible{outline:2px solid var(--blue-500);outline-offset:2px;}

/* ---------- 3. 布局工具 ---------- */
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px;}
.section{padding:88px 0;position:relative;}
.section--soft{background:var(--bg-soft);}
.section--tight{padding:64px 0;}
.section--dark{background:var(--blue-900);color:#dbe6f7;}
.section--dark h2,.section--dark h3,.section--dark h4{color:#fff;}

.grid{display:grid;gap:24px;}
/* 栅格/弹性子项默认 min-width:auto，长内容（长串英文、宽表格）会撑破容器，
   统一置 0 让子项可收缩，配合各处 overflow 处理。 */
.grid>*{min-width:0;}
.g2{grid-template-columns:repeat(2,1fr);}
.g3{grid-template-columns:repeat(3,1fr);}
.g4{grid-template-columns:repeat(4,1fr);}
/* 联系页：左信息 / 右表单，窄屏由响应式断点收为单列 */
.contact__grid{grid-template-columns:1.05fr .95fr;gap:46px;align-items:start;}
.g5{grid-template-columns:repeat(5,1fr);}

/* ---------- 4. 区块标题 ---------- */
.sec-head{margin-bottom:48px;max-width:820px;}
.sec-head--center{margin-left:auto;margin-right:auto;text-align:center;}
.sec-head__eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;
  color:var(--blue-500);margin-bottom:14px;
}
.sec-head__eyebrow::before{
  content:"";width:26px;height:2px;background:var(--brand-red);border-radius:2px;
}
.sec-head--center .sec-head__eyebrow::after{
  content:"";width:26px;height:2px;background:var(--brand-red);border-radius:2px;
}
.sec-head__title{font-size:clamp(26px,3.2vw,38px);letter-spacing:.02em;}
.sec-head__sub{margin-top:16px;font-size:16px;color:var(--text-soft);line-height:1.85;}
.section--dark .sec-head__sub{color:#a8bcd8;}

/* ---------- 5. 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 28px;border-radius:var(--radius-s);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  transition:all .25s var(--ease);white-space:nowrap;
}
.btn--primary{background:var(--blue-600);color:#fff;box-shadow:0 6px 16px rgba(26,77,158,.22);}
.btn--primary:hover{background:var(--blue-700);transform:translateY(-2px);box-shadow:0 10px 24px rgba(26,77,158,.28);}
.btn--ghost{border:1px solid var(--ink-300);color:var(--ink-700);background:#fff;}
.btn--ghost:hover{border-color:var(--blue-500);color:var(--blue-600);background:var(--blue-50);}
.btn--light{background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.3);}
.btn--light:hover{background:rgba(255,255,255,.22);transform:translateY(-2px);}
.btn--red{background:var(--brand-red);color:#fff;box-shadow:0 6px 16px rgba(226,35,26,.24);}
.btn--red:hover{background:var(--brand-red-dark);transform:translateY(-2px);}
.btn--sm{padding:9px 20px;font-size:14px;}

/* ---------- 6. 卡片 ---------- */
.card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:30px 28px;transition:all .28s var(--ease);position:relative;overflow:hidden;
}
.card::before{
  content:"";position:absolute;left:0;top:0;height:3px;width:0;
  background:linear-gradient(90deg,var(--blue-500),var(--cyan-500));transition:width .35s var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:transparent;}
.card:hover::before{width:100%;}
.card__icon{
  width:52px;height:52px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:var(--blue-50);color:var(--blue-600);margin-bottom:18px;
}
.card__icon svg{width:26px;height:26px;}
.card__title{font-size:18px;margin-bottom:10px;}
.card__desc{font-size:14.5px;color:var(--text-soft);line-height:1.85;}

/* ---------- 7. 徽标 / 标签 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:100px;
  font-size:12.5px;font-weight:600;line-height:1.7;white-space:nowrap;
}
.tag--live{background:var(--green-100);color:var(--green-500);}
.tag--build{background:var(--amber-100);color:var(--amber-500);}
.tag--plan{background:var(--ink-100);color:var(--ink-500);}
.tag--blue{background:var(--blue-100);color:var(--blue-600);}
.tag--cyan{background:var(--cyan-100);color:var(--cyan-500);}
.tag--violet{background:var(--violet-100);color:var(--violet-500);}

/* ---------- 8. 页头 ---------- */
.header{
  position:sticky;top:0;z-index:100;height:var(--header-h);
  background:rgba(255,255,255,.92);backdrop-filter:saturate(180%) blur(14px);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid var(--ink-100);transition:box-shadow .3s var(--ease);
}
.header.is-stuck{box-shadow:0 2px 16px rgba(16,44,92,.08);}
.header__inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:24px;}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand__logo{height:26px;width:auto;}
.brand__divider{width:1px;height:22px;background:var(--ink-200);}
.brand__name{font-size:15px;font-weight:600;color:var(--ink-700);letter-spacing:.04em;white-space:nowrap;}

.nav{display:flex;align-items:center;gap:2px;}
.nav__item{position:relative;}
.nav__link{
  display:flex;align-items:center;gap:5px;padding:0 15px;height:var(--header-h);
  font-size:15px;font-weight:500;color:var(--ink-700);position:relative;
}
.nav__link::after{
  content:"";position:absolute;left:15px;right:15px;bottom:0;height:2px;
  background:var(--blue-600);transform:scaleX(0);transform-origin:center;transition:transform .28s var(--ease);
}
.nav__link:hover{color:var(--blue-600);}
.nav__link:hover::after,.nav__link.is-active::after{transform:scaleX(1);}
.nav__link.is-active{color:var(--blue-700);font-weight:600;}
.nav__caret{width:9px;height:9px;transition:transform .25s var(--ease);opacity:.55;}
.nav__item:hover .nav__caret{transform:rotate(180deg);}

.nav__panel{
  position:absolute;top:calc(var(--header-h) - 6px);left:50%;transform:translate(-50%,10px);
  min-width:250px;background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow-lg);padding:8px;opacity:0;visibility:hidden;
  transition:all .25s var(--ease);
}
.nav__item:hover .nav__panel{opacity:1;visibility:visible;transform:translate(-50%,0);}
.nav__panel a{display:block;padding:10px 14px;border-radius:var(--radius-s);font-size:14.5px;color:var(--ink-700);}
.nav__panel a:hover{background:var(--blue-50);color:var(--blue-700);}
.nav__panel a small{display:block;font-size:12.5px;color:var(--ink-400);margin-top:2px;}

.header__cta{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.header__tel{font-size:14px;font-weight:600;color:var(--blue-700);white-space:nowrap;}
.header__tel span{color:var(--ink-400);font-weight:400;font-size:12.5px;display:block;line-height:1.2;}

.burger{
  display:none;width:42px;height:42px;border-radius:var(--radius-s);
  align-items:center;justify-content:center;background:var(--ink-50);
}
.burger i{display:block;width:19px;height:2px;background:var(--ink-800);border-radius:2px;position:relative;transition:all .28s var(--ease);}
.burger i::before,.burger i::after{content:"";position:absolute;left:0;width:19px;height:2px;background:var(--ink-800);border-radius:2px;transition:all .28s var(--ease);}
.burger i::before{top:-6px;}
.burger i::after{top:6px;}
.burger.is-open i{background:transparent;}
.burger.is-open i::before{top:0;transform:rotate(45deg);}
.burger.is-open i::after{top:0;transform:rotate(-45deg);}

/* ---------- 9. 移动端抽屉 ---------- */
.drawer{
  position:fixed;inset:0;z-index:200;visibility:hidden;pointer-events:none;
}
.drawer.is-open{visibility:visible;pointer-events:auto;}
.drawer__mask{position:absolute;inset:0;background:rgba(10,31,68,.5);opacity:0;transition:opacity .3s var(--ease);}
.drawer.is-open .drawer__mask{opacity:1;}
.drawer__panel{
  position:absolute;top:0;right:0;bottom:0;width:min(320px,86vw);background:#fff;
  transform:translateX(100%);transition:transform .32s var(--ease);
  display:flex;flex-direction:column;overflow-y:auto;
}
.drawer.is-open .drawer__panel{transform:translateX(0);}
.drawer__head{
  height:var(--header-h);display:flex;align-items:center;justify-content:space-between;
  padding:0 20px;border-bottom:1px solid var(--ink-100);flex-shrink:0;
}
.drawer__close{width:36px;height:36px;border-radius:8px;display:flex;align-items:center;justify-content:center;background:var(--ink-50);font-size:20px;color:var(--ink-600);}
.drawer__body{padding:12px 0 24px;flex:1;}
.drawer__group{border-bottom:1px solid var(--ink-100);padding:4px 0;}
.drawer__group:last-child{border-bottom:0;}
.drawer__row{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:13px 20px;font-size:15.5px;font-weight:500;color:var(--ink-800);
}
.drawer__row.is-active{color:var(--blue-600);}
.drawer__row svg{width:10px;height:10px;opacity:.5;transition:transform .25s var(--ease);}
.drawer__group.is-open .drawer__row svg{transform:rotate(180deg);}
.drawer__sub{max-height:0;overflow:hidden;transition:max-height .32s var(--ease);background:var(--ink-50);}
.drawer__group.is-open .drawer__sub{max-height:340px;}
.drawer__sub a{display:block;padding:11px 20px 11px 34px;font-size:14.5px;color:var(--ink-600);}
.drawer__sub a.is-active{color:var(--blue-600);font-weight:600;}
.drawer__foot{padding:18px 20px 26px;border-top:1px solid var(--ink-100);flex-shrink:0;}
.drawer__foot p{font-size:13.5px;color:var(--ink-500);line-height:1.9;}

/* ---------- 10. 页面横幅 ---------- */
.pagehero{
  position:relative;padding:88px 0 76px;overflow:hidden;
  background:linear-gradient(135deg,var(--blue-900) 0%,var(--blue-700) 52%,var(--blue-600) 100%);
  color:#fff;
}
.pagehero::before{
  content:"";position:absolute;inset:0;opacity:.5;
  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:56px 56px;
  -webkit-mask-image:radial-gradient(ellipse 80% 70% at 70% 30%,#000 20%,transparent 75%);
          mask-image:radial-gradient(ellipse 80% 70% at 70% 30%,#000 20%,transparent 75%);
}
.pagehero::after{
  content:"";position:absolute;right:-140px;top:-140px;width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle,rgba(10,169,200,.34),transparent 68%);
}
.pagehero__inner{position:relative;z-index:2;}
.pagehero__crumb{font-size:13.5px;color:rgba(255,255,255,.62);margin-bottom:16px;display:flex;align-items:center;gap:8px;flex-wrap:wrap;}
.pagehero__crumb a:hover{color:#fff;}
.pagehero__title{font-size:clamp(28px,4vw,44px);color:#fff;letter-spacing:.02em;}
.pagehero__sub{margin-top:18px;font-size:16.5px;line-height:1.9;color:#c3d6ef;max-width:760px;}

/* ---------- 11. 首页 HERO ---------- */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background:
    radial-gradient(1100px 620px at 78% 12%,rgba(10,169,200,.30),transparent 62%),
    radial-gradient(760px 520px at 8% 88%,rgba(26,77,158,.55),transparent 66%),
    linear-gradient(140deg,#071630 0%,#0d2550 46%,#123a78 100%);
  padding:104px 0 96px;
}
.hero::before{
  content:"";position:absolute;inset:0;opacity:.55;
  background-image:linear-gradient(rgba(255,255,255,.055) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.055) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(ellipse 76% 66% at 66% 34%,#000 18%,transparent 74%);
          mask-image:radial-gradient(ellipse 76% 66% at 66% 34%,#000 18%,transparent 74%);
}
.hero__inner{position:relative;z-index:2;display:grid;grid-template-columns:1.06fr .94fr;gap:56px;align-items:center;}
.hero__badge{
  display:inline-flex;align-items:center;gap:9px;padding:6px 15px;border-radius:100px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);
  font-size:13px;color:#d6e5fa;margin-bottom:26px;letter-spacing:.04em;
}
.hero__badge b{color:#fff;font-weight:600;}
.hero__badge i{width:6px;height:6px;border-radius:50%;background:#3ddc97;box-shadow:0 0 0 3px rgba(61,220,151,.22);font-style:normal;}
.hero__title{font-size:clamp(30px,4.4vw,50px);line-height:1.22;color:#fff;letter-spacing:.02em;font-weight:800;}
.hero__title em{font-style:normal;background:linear-gradient(100deg,#5ad2f0,#7db0ee 55%,#ffd08a);-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero__lead{margin-top:24px;font-size:17px;line-height:1.95;color:#b9cdea;max-width:600px;}
.hero__actions{margin-top:38px;display:flex;gap:14px;flex-wrap:wrap;}
.hero__stats{
  margin-top:52px;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  padding-top:32px;border-top:1px solid rgba(255,255,255,.14);
}
.hero__stat b{
  display:block;font-size:clamp(24px,2.8vw,34px);font-weight:800;color:#fff;
  line-height:1.2;letter-spacing:.01em;white-space:nowrap;
}
.hero__stat b i{font-style:normal;font-size:.56em;margin-left:2px;color:#7db0ee;}
.hero__stat b span{display:inline;}
.hero__stat>span{display:block;font-size:13px;color:rgba(200,216,240,.78);margin-top:7px;line-height:1.5;}

/* HERO 右侧视觉 */
.hero__visual{position:relative;}
.hero__panel{
  background:rgba(255,255,255,.055);border:1px solid rgba(255,255,255,.14);
  border-radius:var(--radius-l);padding:24px;backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  box-shadow:0 26px 70px rgba(0,0,0,.30);
}
.hero__panel-hd{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.hero__panel-hd span{font-size:13px;color:#a9c1e2;letter-spacing:.1em;text-transform:uppercase;}
.hero__panel-hd i{width:8px;height:8px;border-radius:50%;background:#3ddc97;font-style:normal;box-shadow:0 0 0 4px rgba(61,220,151,.18);}
.hero__wing{
  border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);
  padding:18px;margin-bottom:12px;background:rgba(255,255,255,.035);
  transition:all .3s var(--ease);
}
.hero__wing:hover{background:rgba(255,255,255,.08);border-color:rgba(125,176,238,.5);transform:translateX(4px);}
.hero__wing-t{display:flex;align-items:center;gap:10px;margin-bottom:8px;}
.hero__wing-t b{font-size:15.5px;color:#fff;font-weight:600;}
.hero__wing-t u{
  text-decoration:none;font-size:11px;padding:2px 8px;border-radius:100px;
  background:rgba(10,169,200,.22);color:#7fe0f2;border:1px solid rgba(10,169,200,.34);
}
.hero__wing p{font-size:13.5px;color:#a3bade;line-height:1.75;}
.hero__core{
  margin-top:14px;padding:18px;border-radius:var(--radius);
  background:linear-gradient(120deg,rgba(226,35,26,.18),rgba(26,77,158,.24));
  border:1px solid rgba(255,255,255,.16);text-align:center;
}
.hero__core b{display:block;font-size:15px;color:#fff;letter-spacing:.06em;}
.hero__core span{display:block;font-size:12.5px;color:#a9c1e2;margin-top:6px;line-height:1.7;}

.hero__highs{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:16px;}
.hero__high{
  background:#fff;border-radius:var(--radius);padding:15px 18px;
  display:flex;align-items:center;gap:13px;box-shadow:var(--shadow-md);
  transition:transform .28s var(--ease);
}
.hero__high:hover{transform:translateY(-3px);}
.hero__high-ic{
  width:38px;height:38px;border-radius:10px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
}
.hero__high-ic svg{width:20px;height:20px;}
.hero__high-ic--blue{background:#e3edfb;color:#1a4d9e;}
.hero__high-ic--red{background:#fdeceb;color:#e2231a;}
.hero__high b{display:block;font-size:14.5px;color:var(--ink-900);line-height:1.35;font-weight:700;}
.hero__high span{display:block;font-size:12px;color:var(--ink-400);margin-top:3px;line-height:1.5;}

/* ---------- 12. 通用组件：数字指标 ---------- */
.metrics{display:grid;gap:20px;}
.metric{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:28px 24px;text-align:center;transition:all .28s var(--ease);
}
.metric:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--blue-300);}
.metric b{display:block;font-size:clamp(28px,3.4vw,40px);font-weight:800;color:var(--blue-600);line-height:1.15;letter-spacing:-.01em;}
.metric b i{font-style:normal;font-size:.5em;margin-left:2px;color:var(--ink-400);font-weight:700;}
.metric>span{display:block;margin-top:10px;font-size:14px;color:var(--ink-600);font-weight:500;}
.metric small{display:block;margin-top:5px;font-size:12.5px;color:var(--ink-400);line-height:1.6;}
.section--dark .metric{background:rgba(255,255,255,.05);border-color:rgba(255,255,255,.12);}
.section--dark .metric b{color:#7db0ee;}
.section--dark .metric span{color:#c3d6ef;}
.section--dark .metric small{color:rgba(180,200,228,.66);}
.section--dark .metric:hover{border-color:rgba(125,176,238,.5);}

/* ---------- 13. 战略卡（一基两翼） ---------- */
.strategy{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.strategy__item{
  border-radius:var(--radius);padding:32px 28px;position:relative;overflow:hidden;
  border:1px solid var(--border);background:#fff;transition:all .3s var(--ease);
}
.strategy__item:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);}
.strategy__item--base{background:linear-gradient(150deg,var(--blue-800),var(--blue-600));border-color:transparent;color:#fff;}
.strategy__item--base:hover{box-shadow:0 18px 44px rgba(16,44,92,.28);}
.strategy__k{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.12em;
  padding:4px 12px;border-radius:100px;margin-bottom:16px;
}
.strategy__item--base .strategy__k{background:rgba(255,255,255,.16);color:#cfe2fb;}
.strategy__item--w1 .strategy__k{background:var(--blue-50);color:var(--blue-600);}
.strategy__item--w2 .strategy__k{background:#fdeceb;color:var(--brand-red);}
.strategy__item h3{font-size:20px;margin-bottom:12px;}
.strategy__item--base h3{color:#fff;}
.strategy__item p{font-size:14.5px;line-height:1.85;color:var(--text-soft);}
.strategy__item--base p{color:#b9cdea;}
.strategy__list{margin-top:16px;display:flex;flex-wrap:wrap;gap:8px;}
.strategy__list span{
  font-size:12.5px;padding:4px 11px;border-radius:6px;
  background:var(--ink-50);color:var(--ink-600);border:1px solid var(--ink-100);
}
.strategy__item--base .strategy__list span{background:rgba(255,255,255,.12);color:#d3e3fa;border-color:rgba(255,255,255,.16);}

/* ---------- 14. 技术体系 ---------- */
.techgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.tech{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:28px 24px;position:relative;transition:all .3s var(--ease);
}
.tech::after{
  content:"";position:absolute;right:0;top:0;width:3px;height:0;background:var(--cyan-500);
  transition:height .35s var(--ease);
}
.tech:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);}
.tech:hover::after{height:100%;}
.tech__no{font-size:12px;font-weight:700;color:var(--blue-300);letter-spacing:.1em;}
.tech h4{font-size:18px;margin:10px 0 10px;}
.tech p{font-size:14px;color:var(--text-soft);line-height:1.8;}

/* ---------- 15. 产品卡 ---------- */
.prod{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  overflow:hidden;display:flex;flex-direction:column;
  transition:all .3s var(--ease);
}
.prod:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:transparent;}
.prod__hd{padding:26px 26px 20px;border-bottom:1px solid var(--ink-100);position:relative;}
.prod__hd::before{content:"";position:absolute;left:0;top:0;width:100%;height:3px;background:linear-gradient(90deg,var(--blue-500),var(--cyan-500));opacity:0;transition:opacity .3s var(--ease);}
.prod:hover .prod__hd::before{opacity:1;}
.prod__no{font-size:12px;font-weight:700;color:var(--blue-400);letter-spacing:.1em;}
.prod__hd h3{font-size:19px;margin:8px 0 0;}
.prod__bd{padding:20px 26px 26px;flex:1;}
.prod__bd p{font-size:14.5px;color:var(--text-soft);line-height:1.85;}
.prod__tags{margin-top:16px;display:flex;flex-wrap:wrap;gap:7px;}
.prod__tags span{font-size:12px;padding:3px 10px;border-radius:5px;background:var(--blue-50);color:var(--blue-600);}

/* ---------- 16. 时间轴 ---------- */
.timeline{position:relative;padding-left:0;}
.timeline::before{
  content:"";position:absolute;left:50%;top:0;bottom:0;width:2px;transform:translateX(-50%);
  background:linear-gradient(180deg,var(--blue-300),var(--cyan-500),var(--ink-200));
}
.tl-item{position:relative;width:50%;padding:0 44px 42px 0;}
.tl-item:nth-child(even){margin-left:50%;padding:0 0 42px 44px;}
.tl-item::before{
  content:"";position:absolute;right:-8px;top:6px;width:16px;height:16px;border-radius:50%;
  background:#fff;border:3px solid var(--blue-500);z-index:2;
  box-shadow:0 0 0 4px rgba(32,100,200,.10);
}
.tl-item:nth-child(even)::before{right:auto;left:-8px;}
.tl-item__yr{
  display:inline-block;font-size:13px;font-weight:700;color:var(--blue-600);
  background:var(--blue-50);padding:3px 12px;border-radius:100px;margin-bottom:10px;
}
.tl-item h4{font-size:18px;margin-bottom:9px;}
.tl-item p{font-size:14.5px;color:var(--text-soft);line-height:1.85;}

/* ---------- 17. 表格 ---------- */
.tablewrap{overflow-x:auto;border:1px solid var(--border);border-radius:var(--radius);background:#fff;-webkit-overflow-scrolling:touch;}
.tablewrap table{min-width:640px;font-size:14.5px;}
.tablewrap thead th{
  background:var(--blue-900);color:#fff;font-weight:600;text-align:left;
  padding:15px 20px;font-size:14px;white-space:nowrap;letter-spacing:.03em;
}
.tablewrap tbody td{padding:15px 20px;border-bottom:1px solid var(--ink-100);color:var(--ink-700);line-height:1.75;vertical-align:top;}
.tablewrap tbody tr:last-child td{border-bottom:0;}
.tablewrap tbody tr:nth-child(even){background:var(--ink-50);}
.tablewrap tbody td:first-child{font-weight:600;color:var(--ink-900);white-space:nowrap;}
.tablewrap .tag{white-space:nowrap;}

/* ---------- 18. Tab 切换 ---------- */
.tabs{margin-bottom:40px;display:flex;gap:8px;flex-wrap:wrap;border-bottom:1px solid var(--border);}
.tabs button{
  padding:12px 24px;font-size:15px;font-weight:600;color:var(--ink-500);
  border-bottom:2px solid transparent;margin-bottom:-1px;transition:all .22s var(--ease);
}
.tabs button:hover{color:var(--blue-600);}
.tabs button.is-active{color:var(--blue-700);border-bottom-color:var(--blue-600);}
.tabpanel{display:none;animation:fadeUp .4s var(--ease);}
.tabpanel.is-active{display:block;}
@keyframes fadeUp{from{opacity:0;transform:translateY(12px);}to{opacity:1;transform:none;}}

/* ---------- 19. 架构图（七端 / 端边云） ---------- */
.arch{display:grid;gap:16px;}
.arch__layer{
  border:1px solid var(--border);border-radius:var(--radius);background:#fff;overflow:hidden;
}
.arch__hd{
  padding:13px 22px;background:var(--blue-50);border-bottom:1px solid var(--ink-100);
  display:flex;align-items:center;gap:12px;flex-wrap:wrap;
}
.arch__hd b{font-size:14.5px;color:var(--blue-800);}
.arch__hd span{font-size:12.5px;color:var(--ink-500);}
.arch__hd em{
  font-style:normal;margin-left:auto;font-size:11.5px;font-weight:700;letter-spacing:.1em;
  color:var(--blue-500);background:#fff;padding:3px 11px;border-radius:100px;border:1px solid var(--blue-100);
}
.arch__bd{padding:18px;display:grid;gap:12px;grid-template-columns:repeat(7,1fr);}
.arch__bd--5{grid-template-columns:repeat(5,1fr);}
.arch__bd--3{grid-template-columns:repeat(3,1fr);}
.arch__node{
  border:1px solid var(--ink-200);border-radius:10px;padding:14px 12px;text-align:center;
  background:var(--ink-50);transition:all .25s var(--ease);
}
.arch__node:hover{background:#fff;border-color:var(--blue-400);transform:translateY(-3px);box-shadow:var(--shadow-sm);}
.arch__node b{display:block;font-size:14px;color:var(--ink-900);font-weight:600;line-height:1.45;}
.arch__node span{display:block;font-size:11.5px;color:var(--ink-400);margin-top:5px;line-height:1.5;}
.arch__node--key{background:var(--blue-50);border-color:var(--blue-200,var(--blue-300));}
.arch__node--key b{color:var(--blue-700);}
.arch__node--warm{background:#fdeceb;border-color:#f7cfcc;}
.arch__node--warm b{color:var(--brand-red-dark);}
.arch__flow{
  display:flex;align-items:center;justify-content:center;gap:8px;flex-wrap:wrap;
  padding:14px;background:var(--blue-900);border-radius:var(--radius);color:#cfe0f7;font-size:13.5px;
}
.arch__flow b{color:#fff;font-weight:600;}
.arch__flow i{font-style:normal;color:#4d7cb8;}

/* ---------- 20. 优势特性 ---------- */
.feat{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.feat__item{
  display:flex;gap:16px;padding:24px;background:#fff;border:1px solid var(--border);
  border-radius:var(--radius);transition:all .28s var(--ease);
}
.feat__item:hover{border-color:var(--blue-300);box-shadow:var(--shadow-sm);transform:translateY(-3px);}
.feat__ic{
  width:44px;height:44px;border-radius:11px;flex-shrink:0;display:flex;align-items:center;justify-content:center;
  background:var(--blue-50);color:var(--blue-600);
}
.feat__ic svg{width:22px;height:22px;}
.feat__ic--red{background:#fdeceb;color:var(--brand-red);}
.feat__ic--cyan{background:var(--cyan-100);color:var(--cyan-500);}
.feat__ic--green{background:var(--green-100);color:var(--green-500);}
.feat__ic--amber{background:var(--amber-100);color:var(--amber-500);}
.feat__ic--violet{background:var(--violet-100);color:var(--violet-500);}
.feat h4{font-size:16.5px;margin-bottom:8px;}
.feat p{font-size:14px;color:var(--text-soft);line-height:1.8;}

/* ---------- 21. 流程步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:st;}
.step{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:26px 22px;position:relative;transition:all .28s var(--ease);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:transparent;}
.step__n{
  counter-increment:st;font-size:30px;font-weight:800;color:var(--blue-100);
  line-height:1;margin-bottom:12px;display:block;
}
.step__n::before{content:"0" counter(st);}
.step:hover .step__n{color:var(--blue-300);}
.step h4{font-size:16.5px;margin-bottom:8px;}
.step p{font-size:13.5px;color:var(--text-soft);line-height:1.8;}

/* ---------- 22. 客户/行业卡 ---------- */
.inds{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;}
.ind{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:26px 22px;transition:all .28s var(--ease);
}
.ind:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:transparent;}
.ind__ic{
  width:44px;height:44px;border-radius:11px;background:var(--blue-50);color:var(--blue-600);
  display:flex;align-items:center;justify-content:center;margin-bottom:14px;
}
.ind__ic svg{width:22px;height:22px;}
.ind h4{font-size:16.5px;margin-bottom:10px;}
.ind p{font-size:13.5px;color:var(--text-soft);line-height:1.8;}
.ind__tags{margin-top:14px;display:flex;flex-wrap:wrap;gap:6px;}
.ind__tags span{font-size:11.5px;padding:2px 9px;border-radius:5px;background:var(--ink-50);color:var(--ink-500);}

/* ---------- 23. 资质 ---------- */
.certs{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.cert{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:28px 26px;display:flex;gap:18px;transition:all .28s var(--ease);
}
.cert:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:transparent;}
.cert__ic{
  width:50px;height:50px;border-radius:12px;flex-shrink:0;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--blue-600),var(--cyan-500));color:#fff;
}
.cert__ic svg{width:25px;height:25px;}
.cert h4{font-size:16.5px;margin-bottom:8px;}
.cert p{font-size:13.5px;color:var(--text-soft);line-height:1.8;}
.cert code{
  display:inline-block;margin-top:10px;font-size:12.5px;font-family:Consolas,Monaco,monospace;
  background:var(--blue-50);color:var(--blue-700);padding:3px 10px;border-radius:5px;
}

/* ---------- 24. 在线咨询表单 ---------- */
.cform__grid{display:grid;gap:16px;}
.cform__row{display:block;}
.cform__label{
  display:block;font-size:14px;font-weight:600;margin-bottom:7px;color:var(--ink-700);
}
.cform__req{color:var(--brand-red);}
.cform__input{
  width:100%;padding:12px 14px;border:1px solid var(--ink-200);border-radius:var(--radius-s);
  font-size:15px;font-family:inherit;color:var(--text);background:var(--ink-50);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
  -webkit-appearance:none;appearance:none;
}
select.cform__input{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%236b7a96' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;background-size:10px 6px;
  padding-right:38px;cursor:pointer;
}
.cform__input--area{resize:vertical;min-height:96px;line-height:1.75;}
.cform__input::placeholder{color:var(--ink-400);}
.cform__input:focus{
  outline:none;border-color:var(--blue-500);background:#fff;
  box-shadow:0 0 0 3px rgba(32,100,200,.12);
}
.cform__input:disabled{opacity:.6;cursor:not-allowed;}
/* 校验失败态 */
.cform__input.is-error{border-color:var(--brand-red);background:#fdf5f5;}
.cform__input.is-error:focus{box-shadow:0 0 0 3px rgba(226,35,26,.12);}
.field-error{
  font-size:12.5px;color:var(--brand-red);line-height:1.6;margin-top:6px;
  display:flex;align-items:flex-start;gap:5px;
}
.field-error::before{content:"!";flex-shrink:0;width:14px;height:14px;border-radius:50%;
  background:var(--brand-red);color:#fff;font-size:10px;font-weight:700;
  display:inline-flex;align-items:center;justify-content:center;margin-top:3px;}
/* 蜜罐字段：真实用户不可见 */
.cform__honey{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;}
/* 提交按钮 */
.cform__submit{width:100%;position:relative;}
.cform__submit:disabled{opacity:.75;cursor:progress;transform:none !important;box-shadow:none;}
.cform__spinner{
  display:none;width:15px;height:15px;border-radius:50%;
  border:2px solid rgba(255,255,255,.4);border-top-color:#fff;
  animation:cformSpin .7s linear infinite;
}
.cform__submit.is-loading .cform__spinner{display:inline-block;}
.cform__submit.is-loading .cform__arrow{display:none;}
@keyframes cformSpin{to{transform:rotate(360deg);}}
/* 状态反馈条 */
.form__status{
  display:none;font-size:13.5px;line-height:1.75;padding:12px 15px;border-radius:var(--radius-s);
  border:1px solid transparent;align-items:flex-start;gap:8px;
}
.form__status:not(:empty){display:flex;}
.form__status::before{flex-shrink:0;font-weight:700;font-size:13px;line-height:1.6;}
.form__status.is-ok{background:var(--green-100);border-color:rgba(26,156,108,.25);color:#127a53;}
.form__status.is-ok::before{content:"✓";color:var(--green-500);}
.form__status.is-error{background:#fdeceb;border-color:rgba(226,35,26,.22);color:#a81a12;}
.form__status.is-error::before{content:"!";color:var(--brand-red);}
.form__status.is-warn{background:var(--amber-100);border-color:rgba(217,139,11,.25);color:#8a5a05;}
.form__status.is-warn::before{content:"!";color:var(--amber-500);}
.form__status.is-loading{background:var(--blue-50);border-color:var(--blue-100);color:var(--blue-700);}
.form__status.is-loading::before{content:"◌";color:var(--blue-500);}
/* 降级面板：接口不可用时的替代联系方式 */
.form__fallback{
  display:grid;gap:12px;padding:16px 18px;border-radius:var(--radius-s);
  background:var(--ink-50);border:1px solid var(--ink-200);
}
.form__fallback-actions{display:flex;flex-wrap:wrap;gap:10px;}
.form__fallback-actions .btn{flex:0 1 auto;}
.form__fallback-detail{margin:0;font-size:12.5px;color:var(--ink-500);line-height:1.7;}

/* ---------- 25. 图片展示 ---------- */
.shot{border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);background:#fff;box-shadow:var(--shadow-sm);}
.shot img{width:100%;height:100%;object-fit:cover;}
.shot--phone{border-radius:26px;padding:9px;background:var(--ink-900);border:0;box-shadow:var(--shadow-lg);}
.shot--phone img{border-radius:19px;object-fit:contain;}
.shotgrid{display:grid;grid-template-columns:1.35fr 1fr;gap:28px;align-items:center;}
.phones{display:flex;gap:22px;justify-content:center;align-items:flex-end;}

/* ---------- 26. 提示/说明块 ---------- */
.note{
  border-left:3px solid var(--blue-500);background:var(--blue-50);
  padding:18px 22px;border-radius:0 var(--radius-s) var(--radius-s) 0;
  font-size:14.5px;color:var(--ink-700);line-height:1.85;
}
.note strong{color:var(--blue-700);}
.note--warn{border-left-color:var(--amber-500);background:var(--amber-100);}
.note--warn strong{color:var(--amber-500);}
.note--ok{border-left-color:var(--green-500);background:var(--green-100);}
.note--ok strong{color:var(--green-500);}
.section--dark .note{background:rgba(255,255,255,.07);color:#c3d6ef;}
.section--dark .note strong{color:#7db0ee;}

/* ---------- 27. CTA 区块 ---------- */
.cta{
  background:
    radial-gradient(760px 400px at 84% 18%,rgba(10,169,200,.28),transparent 62%),
    linear-gradient(135deg,var(--blue-900),var(--blue-700));
  color:#fff;padding:66px 0;position:relative;overflow:hidden;
}
.cta__inner{display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;position:relative;z-index:2;}
.cta h2{color:#fff;font-size:clamp(24px,3vw,34px);}
.cta p{margin-top:14px;color:#b9cdea;font-size:16px;line-height:1.85;max-width:640px;}
.cta__actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 28. 页脚 ---------- */
.footer{background:#071630;color:#93a8c8;padding:64px 0 0;font-size:14px;}
.footer a:hover{color:#fff;}
.footer__top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:44px;}
.footer__logo{height:26px;width:auto;margin-bottom:16px;}
.footer__desc{font-size:13.5px;line-height:1.9;max-width:330px;color:#8ba0c0;}
.footer__col h5{font-size:15px;color:#fff;margin-bottom:18px;font-weight:600;}
.footer__col li{margin-bottom:11px;font-size:13.5px;}
.footer__col--contact li{display:flex;gap:10px;align-items:flex-start;line-height:1.75;}
.footer__col--contact svg{width:15px;height:15px;flex-shrink:0;margin-top:4px;color:var(--blue-300);}
.footer__bottom{
  border-top:1px solid rgba(255,255,255,.09);padding:22px 0;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12.5px;color:#7b8fad;
}
.footer__bottom a{color:#7b8fad;}
.footer__bottom a:hover{color:#fff;}

/* ---------- 29. 锚点导航（首页内页） ---------- */
.subnav{
  position:sticky;top:var(--header-h);z-index:90;background:rgba(255,255,255,.95);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--ink-100);
}
.subnav__list{display:flex;gap:4px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;}
.subnav__list::-webkit-scrollbar{display:none;}
.subnav__list a{
  display:block;padding:15px 16px;font-size:14.5px;font-weight:500;color:var(--ink-500);
  white-space:nowrap;border-bottom:2px solid transparent;transition:all .2s var(--ease);
}
.subnav__list a:hover{color:var(--blue-600);}
.subnav__list a.is-active{color:var(--blue-700);font-weight:600;border-bottom-color:var(--blue-600);}

/* ---------- 30. 滚动进场动画 ---------- */
/* 仅在 JS 可用时启用，避免脚本失败/缓慢时内容永久不可见 */
.js .reveal{opacity:0;transform:translateY(26px);transition:opacity .65s var(--ease),transform .65s var(--ease);}
.js .reveal.is-in{opacity:1;transform:none;}
.js .reveal[data-delay="1"]{transition-delay:.08s;}
.js .reveal[data-delay="2"]{transition-delay:.16s;}
.js .reveal[data-delay="3"]{transition-delay:.24s;}
.js .reveal[data-delay="4"]{transition-delay:.32s;}
.js .reveal[data-delay="5"]{transition-delay:.4s;}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important;}
  html{scroll-behavior:auto;}
  .js .reveal{opacity:1;transform:none;}
}

/* ---------- 31. 响应式 ---------- */
@media (max-width:1100px){
  .hero__inner{grid-template-columns:1fr;gap:44px;}
  .hero__visual{max-width:620px;padding:0;}
  .techgrid{grid-template-columns:repeat(2,1fr);}
  .footer__top{grid-template-columns:1fr 1fr;gap:32px;}
}

@media (max-width:980px){
  :root{--header-h:64px;}
  .nav,.header__tel{display:none;}
  .burger{display:flex;}
  .g4,.g5,.strategy,.feat,.certs,.steps{grid-template-columns:repeat(2,1fr);}
  .g3,.techgrid,.inds{grid-template-columns:repeat(2,1fr);}
  .shotgrid{grid-template-columns:1fr;gap:36px;}
  .timeline::before{left:8px;}
  .tl-item{width:100%;padding:0 0 34px 40px !important;margin-left:0 !important;}
  .tl-item::before{left:0 !important;right:auto !important;}
  .arch__bd{grid-template-columns:repeat(4,1fr) !important;}
}

@media (max-width:760px){
  body{font-size:15.5px;}
  .wrap{padding:0 18px;}
  .brand{gap:9px;min-width:0;}
  .brand__logo{height:21px;}
  .brand__name{font-size:13.5px;overflow:hidden;text-overflow:ellipsis;}
  .brand__divider{display:none;}
  .header__inner{gap:12px;}
  .section{padding:60px 0;}
  .section--tight{padding:44px 0;}
  .sec-head{margin-bottom:34px;}
  .g2,.g3,.g4,.g5,.strategy,.techgrid,.feat,.certs,.steps,.inds,.phones{grid-template-columns:1fr;}
  .contact__grid{grid-template-columns:1fr;gap:32px;}
  .hero{padding:64px 0 62px;}
  .hero__title{font-size:clamp(25px,7.4vw,32px);line-height:1.28;}
  .hero__lead{font-size:16px;line-height:1.9;}
  .hero__badge{font-size:12px;padding:5px 12px;margin-bottom:20px;}
  .hero__stats{grid-template-columns:repeat(2,1fr);gap:22px 16px;margin-top:38px;padding-top:26px;}
  .hero__actions .btn{flex:1 1 100%;min-width:0;}
  .pagehero{padding:60px 0 54px;}
  .arch__bd{grid-template-columns:repeat(2,1fr) !important;}
  .tabs{gap:2px;}
  .tabs button{padding:10px 15px;font-size:14px;}
  .cta__inner{flex-direction:column;align-items:flex-start;}
  .footer__top{grid-template-columns:1fr;gap:30px;padding-bottom:32px;}
  .footer{padding-top:48px;}
  .card,.prod__bd,.prod__hd{padding-left:22px;padding-right:22px;}
  .section--dark .sec-head__sub{color:#a8bcd8;}
  .tl-item__yr{font-size:12px;}
  .hero__highs{grid-template-columns:1fr;gap:10px;}
  .hero__actions{gap:10px;}
}

@media (max-width:400px){
  .hero__stats{grid-template-columns:1fr 1fr;}
  .brand__name{font-size:13.5px;}
  .arch__bd{grid-template-columns:1fr !important;}
}

/* ---------- 32. 打印 ---------- */
@media print{
  .header,.drawer,.subnav,.cta,.hero__visual{display:none;}
  body{color:#000;}
  .section{padding:20px 0;page-break-inside:avoid;}
}