/* ============================================================
   安智云官网 · 共享样式表（商务蓝）
   适用于全部页面，内页组件在「内页通用」之后
   ============================================================ */

/* ============ 1. 设计令牌 ============ */
:root{
  --navy-900:#031530;
  --navy-800:#062249;
  --navy-700:#0a3672;
  --blue-600:#1063d5;
  --blue-500:#2b7ef0;
  --blue-400:#5ea5ff;
  --blue-200:#bcd8ff;
  --blue-100:#ddeafe;
  --blue-50:#f2f7ff;
  --cyan:#22d3ee;
  --mint:#4ade80;
  --ink:#0a1c36;
  --ink-2:#33547f;
  --muted:#6d88ab;
  --line:rgba(16,99,213,.14);
  --radius:20px;
  --radius-sm:12px;
  --shadow-xs:0 2px 10px rgba(10,54,114,.06);
  --shadow-sm:0 6px 22px rgba(10,54,114,.08);
  --shadow:0 20px 48px rgba(10,54,114,.13);
  --shadow-lg:0 38px 80px rgba(10,54,114,.20);
  --ease:cubic-bezier(.22,.8,.24,1);
  --ease-out:cubic-bezier(.16,1,.3,1);
  --nav-h:74px;
  --maxw:1200px;
}

/* ============ 2. 基础 ============ */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:#fff;color:var(--ink);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4,h5{margin:0;line-height:1.28;font-weight:700;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
::selection{background:rgba(43,126,240,.2)}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 28px}
.container-narrow{max-width:900px}
.section{padding:110px 0;position:relative}
.section--tint{background:linear-gradient(180deg,#f7fbff 0%,#eef6ff 100%)}
.section--dark{background:linear-gradient(155deg,var(--navy-900) 0%,var(--navy-800) 46%,var(--navy-700) 100%);color:#eaf3ff}
.section--tight{padding:82px 0}
[id]{scroll-margin-top:86px}

/* ============ 3. 滚动进度 & 回顶 & 提示 ============ */
.scroll-progress{position:fixed;top:0;left:0;right:0;height:3px;z-index:200;pointer-events:none}
.scroll-progress span{display:block;height:100%;width:0;
  background:linear-gradient(90deg,var(--blue-500),var(--cyan));
  box-shadow:0 0 14px rgba(43,126,240,.75);transition:width .12s linear}

.totop{position:fixed;right:28px;bottom:28px;width:48px;height:48px;border-radius:14px;border:0;cursor:pointer;
  background:linear-gradient(140deg,var(--blue-500),var(--blue-600));color:#fff;display:grid;place-items:center;
  box-shadow:0 14px 32px rgba(16,99,213,.4);opacity:0;transform:translateY(18px) scale(.85);pointer-events:none;
  transition:.45s var(--ease);z-index:140}
.totop.show{opacity:1;transform:translateY(0) scale(1);pointer-events:auto}
.totop:hover{transform:translateY(-4px) scale(1.05)}
.totop svg{width:21px;height:21px}

.toast{position:fixed;left:50%;bottom:34px;transform:translate(-50%,calc(100% + 60px));z-index:300;
  display:flex;align-items:center;gap:11px;padding:14px 24px;border-radius:14px;
  background:var(--navy-800);color:#fff;font-size:14.5px;font-weight:600;max-width:calc(100vw - 40px);
  box-shadow:0 20px 48px rgba(3,21,48,.44);transition:transform .55s var(--ease-out)}
.toast.show{transform:translate(-50%,0)}
.toast svg{width:19px;height:19px;color:var(--mint);flex:0 0 auto}

/* ============ 4. 导航 ============ */
.nav{position:fixed;top:0;left:0;right:0;height:var(--nav-h);z-index:150;
  display:flex;align-items:center;transition:all .45s var(--ease);
  background:linear-gradient(180deg,rgba(3,21,48,.72),rgba(3,21,48,0));border-bottom:1px solid transparent}
.nav.solid{background:rgba(255,255,255,.88);backdrop-filter:blur(18px) saturate(180%);
  -webkit-backdrop-filter:blur(18px) saturate(180%);
  border-bottom-color:var(--line);box-shadow:0 8px 30px rgba(10,54,114,.07)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;
  width:100%;max-width:var(--maxw);margin:0 auto;padding:0 28px}

.logo{display:flex;align-items:center;flex:0 0 auto}
/* 真实 logo：白底已在图片里去净，深底用白色版、浅底用原色版 */
.logo-img{height:38px;width:auto;display:block}
.logo-img--color{display:none}
.nav.solid .logo-img--dark{display:none}
.nav.solid .logo-img--color{display:block}

.nav-links{display:flex;align-items:center;gap:2px}
.nav-item{position:relative}
.nav-links a.nav-a{position:relative;display:flex;align-items:center;gap:5px;padding:9px 11px;border-radius:9px;
  font-size:14px;font-weight:500;color:rgba(255,255,255,.84);transition:all .3s var(--ease);white-space:nowrap}
.nav.solid .nav-links a.nav-a{color:var(--ink-2)}
.nav-links a.nav-a::after{content:"";position:absolute;left:11px;right:11px;bottom:4px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--blue-500),var(--cyan));transform:scaleX(0);transform-origin:left;
  transition:transform .38s var(--ease)}
.nav-links a.nav-a:hover{color:#fff;background:rgba(255,255,255,.1)}
.nav.solid .nav-links a.nav-a:hover{color:var(--blue-600);background:var(--blue-50)}
.nav-links a.nav-a:hover::after,.nav-links a.nav-a.active::after{transform:scaleX(1)}
.nav-links a.nav-a.active{color:#fff}
.nav.solid .nav-links a.nav-a.active{color:var(--blue-600)}
.caret{width:11px;height:11px;transition:transform .34s var(--ease);opacity:.75;flex:0 0 auto}

/* 下拉 */
.drop{position:absolute;top:calc(100% + 10px);left:50%;transform:translate(-50%,10px);min-width:212px;
  padding:9px;border-radius:16px;background:#fff;border:1px solid var(--line);
  box-shadow:0 26px 60px rgba(10,54,114,.18);opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity .3s var(--ease),transform .34s var(--ease),visibility .34s}
.drop::before{content:"";position:absolute;top:-9px;left:0;right:0;height:10px}
.nav-item:hover .drop,.nav-item:focus-within .drop{opacity:1;visibility:visible;pointer-events:auto;transform:translate(-50%,0)}
.nav-item:hover .caret,.nav-item:focus-within .caret{transform:rotate(180deg)}
.drop a{display:flex;align-items:center;gap:10px;padding:11px 13px;border-radius:10px;font-size:14px;
  font-weight:500;color:var(--ink-2);transition:.3s var(--ease)}
.drop a:hover{background:var(--blue-50);color:var(--blue-600);transform:translateX(3px)}
.drop a span.d-ic{width:28px;height:28px;border-radius:9px;display:grid;place-items:center;flex:0 0 auto;
  background:var(--blue-50);color:var(--blue-600);transition:.3s var(--ease)}
.drop a:hover span.d-ic{background:var(--blue-500);color:#fff}
.drop a span.d-ic svg{width:15px;height:15px}

.nav-cta{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-tel{display:flex;align-items:center;gap:7px;font-size:14px;font-weight:600;
  color:rgba(255,255,255,.9);transition:color .4s var(--ease);white-space:nowrap}
.nav.solid .nav-tel{color:var(--navy-800)}
.nav-tel svg{width:15px;height:15px;opacity:.85;flex:0 0 auto}
.burger{display:none;width:42px;height:42px;border-radius:11px;border:1px solid rgba(255,255,255,.26);
  background:rgba(255,255,255,.1);cursor:pointer;padding:0;place-items:center;flex:0 0 auto}
.nav.solid .burger{border-color:var(--line);background:var(--blue-50)}
.burger span{display:block;width:17px;height:2px;background:#fff;border-radius:2px;margin:3px auto;transition:.3s var(--ease)}
.nav.solid .burger span{background:var(--navy-800)}

/* ============ 5. 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;cursor:pointer;
  font-size:14.5px;font-weight:600;padding:11px 22px;border-radius:11px;letter-spacing:.01em;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),background .3s var(--ease),color .3s var(--ease);
  white-space:nowrap;position:relative;overflow:hidden}
.btn svg{width:16px;height:16px;flex:0 0 auto}
.btn-primary{background:linear-gradient(135deg,var(--blue-500),var(--blue-600));color:#fff;
  box-shadow:0 10px 26px rgba(16,99,213,.32)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 36px rgba(16,99,213,.44)}
.btn-primary::before{content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,transparent 30%,rgba(255,255,255,.42) 50%,transparent 70%);
  transform:translateX(-130%);transition:transform .8s var(--ease)}
.btn-primary:hover::before{transform:translateX(130%)}
.btn-ghost{background:rgba(255,255,255,.1);color:#fff;border:1px solid rgba(255,255,255,.28);backdrop-filter:blur(8px)}
.btn-ghost:hover{background:rgba(255,255,255,.2);transform:translateY(-2px)}
.btn-outline{background:#fff;color:var(--blue-600);border:1px solid var(--blue-200)}
.btn-outline:hover{background:var(--blue-50);border-color:var(--blue-400);transform:translateY(-2px)}
.btn-soft{background:var(--blue-50);color:var(--blue-600);border:1px solid var(--blue-100)}
.btn-soft:hover{background:var(--blue-100);transform:translateY(-2px)}
.btn-lg{padding:15px 30px;font-size:15.5px;border-radius:13px}
.btn-block{width:100%}
.btn-row{display:flex;flex-wrap:wrap;gap:14px}

/* ============ 6. 标题组 ============ */
.head{max-width:760px;margin-bottom:58px}
.head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:12.5px;font-weight:700;
  letter-spacing:.17em;text-transform:uppercase;color:var(--blue-600);margin-bottom:16px}
.eyebrow::before{content:"";width:26px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--blue-500),var(--cyan))}
.head.center .eyebrow::before{display:none}
.head h1,.head h2{font-size:clamp(28px,3.4vw,42px);letter-spacing:-.022em;color:var(--navy-800)}
.head p{margin-top:18px;font-size:16.5px;color:var(--muted);line-height:1.85}
.section--dark .eyebrow{color:var(--blue-400)}
.section--dark .head h2,.section--dark .head h1{color:#fff}
.section--dark .head p{color:rgba(188,216,255,.74)}
.head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:48px;flex-wrap:wrap}
.head-row .head{margin-bottom:0}

/* ============ 7. 首页 HERO ============ */
.hero{position:relative;min-height:100vh;display:flex;flex-direction:column;justify-content:center;
  padding:calc(var(--nav-h) + 60px) 0 0;overflow:hidden;
  background:linear-gradient(158deg,#021026 0%,#062249 38%,#0a3672 72%,#10529f 100%);color:#fff}
#net{position:absolute;inset:0;width:100%;height:100%;opacity:.62}
.hero-glow{position:absolute;border-radius:50%;filter:blur(90px);pointer-events:none;opacity:.5}
.g1{width:620px;height:620px;top:-240px;right:-160px;background:radial-gradient(circle,#2b7ef0 0%,transparent 68%);animation:drift1 22s ease-in-out infinite}
.g2{width:520px;height:520px;bottom:-220px;left:-140px;background:radial-gradient(circle,#22d3ee 0%,transparent 70%);opacity:.34;animation:drift2 26s ease-in-out infinite}
.g3{width:400px;height:400px;top:38%;left:44%;background:radial-gradient(circle,#5ea5ff 0%,transparent 70%);opacity:.22;animation:drift1 30s ease-in-out infinite reverse}
.hero-grid-lines{position:absolute;inset:0;pointer-events:none;opacity:.3;
  background-image:linear-gradient(rgba(94,165,255,.14) 1px,transparent 1px),linear-gradient(90deg,rgba(94,165,255,.14) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 78% 62% at 50% 42%,#000 12%,transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse 78% 62% at 50% 42%,#000 12%,transparent 78%)}
.hero::after{content:"";position:absolute;left:0;right:0;bottom:0;height:130px;
  background:linear-gradient(180deg,transparent,rgba(255,255,255,.06) 60%,#fff 100%);pointer-events:none;z-index:2}
.hero-inner{position:relative;z-index:3;width:100%;max-width:var(--maxw);margin:0 auto;padding:0 28px 74px;
  display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center}

.pill{display:inline-flex;align-items:center;gap:9px;padding:7px 15px 7px 11px;border-radius:99px;
  background:rgba(94,165,255,.13);border:1px solid rgba(94,165,255,.3);
  font-size:13px;font-weight:600;letter-spacing:.04em;color:#bcd8ff;backdrop-filter:blur(8px)}
.dot-live{width:7px;height:7px;border-radius:50%;background:var(--mint);position:relative;flex:0 0 auto}
.dot-live::after{content:"";position:absolute;inset:-4px;border-radius:50%;border:1.5px solid var(--mint);
  animation:pulseRing 2s ease-out infinite}

.hero h1{font-size:clamp(38px,4.7vw,60px);line-height:1.15;letter-spacing:-.022em;margin:26px 0 0;font-weight:800}
.hero h1 .hl{position:relative;display:inline-block;white-space:nowrap;
  background:linear-gradient(96deg,#7dbcff 6%,#22d3ee 52%,#5ea5ff 96%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  background-size:220% 100%;animation:gradFlow 6s ease-in-out infinite}
.hero h1 .hl::after{content:"";position:absolute;left:0;right:0;bottom:.06em;height:.34em;z-index:-1;
  background:linear-gradient(90deg,rgba(43,126,240,.34),rgba(34,211,238,.2));border-radius:4px;
  transform:scaleX(0);transform-origin:left;animation:underlineIn 1.1s var(--ease-out) .95s forwards}
.hero .lead{margin-top:24px;font-size:17.5px;line-height:1.85;color:rgba(222,236,255,.82);max-width:590px}
.hero .lead b{color:#fff;font-weight:600}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:38px}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:34px}
.hero-tags a,.hero-tags span{font-size:13px;padding:6px 13px;border-radius:8px;color:#a9c9f5;
  background:rgba(255,255,255,.055);border:1px solid rgba(255,255,255,.11);transition:.32s var(--ease)}
.hero-tags a:hover{background:rgba(94,165,255,.16);border-color:rgba(94,165,255,.4);color:#fff;transform:translateY(-2px)}

/* HERO 网络安全盾牌 */
.hero-panel{position:relative;min-height:470px;display:grid;place-items:center}
.hero-visual{position:relative;width:min(430px,100%);aspect-ratio:1/1;display:grid;place-items:center;
  animation:hvIn 1.2s var(--ease-out) .1s both}

/* 背部光晕 */
.hv-glow{position:absolute;inset:0;margin:auto;width:74%;aspect-ratio:1/1;border-radius:50%;pointer-events:none;
  background:radial-gradient(circle,rgba(34,211,238,.34) 0%,rgba(43,126,240,.2) 42%,transparent 70%);
  filter:blur(34px);animation:hvGlow 6.5s ease-in-out infinite}
.hv-glow--2{width:46%;background:radial-gradient(circle,rgba(127,240,255,.4) 0%,transparent 68%);
  filter:blur(26px);animation-duration:5.2s;animation-delay:-2.4s}

/* 旋转光环 */
.hv-rings{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}
.hv-ring{transform-box:view-box;transform-origin:center}
.hv-ring--1{animation:spinSlow 26s linear infinite}
.hv-ring--2{animation:spinSlow 13s linear infinite}
.hv-ring--3{animation:spinSlow 34s linear infinite reverse}

/* 盾牌 */
.hv-shield{position:relative;z-index:2;width:62%;animation:hvFloat 7s ease-in-out infinite}
.hv-shield svg{display:block;width:100%;height:auto;filter:drop-shadow(0 18px 44px rgba(34,211,238,.34))}
.sh-check{stroke-dasharray:91;stroke-dashoffset:91;animation:shCheck 1s var(--ease-out) .75s forwards}
.sh-beam{animation:shBeam 3.6s ease-in-out 1.3s infinite}
.sh-circuit{animation:dashMove 3.2s linear infinite}
.sh-node{animation:shNode 2.6s ease-in-out infinite}

/* 环绕光点（在盾牌后方绕行） */
.hv-orbit{position:absolute;z-index:1;border-radius:50%;pointer-events:none}
.hv-orbit--1{inset:3%;animation:spinSlow 9s linear infinite}
.hv-orbit--2{inset:12%;animation:spinSlow 14s linear infinite reverse}
.hv-orbit--3{inset:21%;animation:spinSlow 20s linear infinite}
.hv-orbit i{position:absolute;top:calc(50% - 3px);left:calc(100% - 3px);width:6px;height:6px;border-radius:50%;
  background:#7ff0ff;box-shadow:0 0 12px 3px rgba(34,211,238,.75)}
.hv-orbit i::after{content:"";position:absolute;top:50%;right:100%;width:30px;height:1.6px;
  transform:translateY(-50%);border-radius:2px;
  background:linear-gradient(90deg,transparent,rgba(34,211,238,.72))}

/* 上升光粒子 */
.hv-dust{position:absolute;inset:0;border-radius:50%;overflow:hidden;pointer-events:none}
.hv-dust i{position:absolute;left:var(--x);bottom:3%;width:var(--s,3px);height:var(--s,3px);border-radius:50%;
  background:#9ff3ff;box-shadow:0 0 9px 2px rgba(34,211,238,.6);opacity:0;
  animation:hvDust var(--t,9s) linear var(--d,0s) infinite}

.marquee{position:relative;z-index:4;border-top:1px solid rgba(160,200,255,.15);
  background:rgba(3,20,42,.5);overflow:hidden;padding:15px 0;backdrop-filter:blur(6px)}
.marquee-track{display:flex;gap:44px;width:max-content;animation:marquee 34s linear infinite}
.marquee:hover .marquee-track{animation-play-state:paused}
.marquee-track span{display:inline-flex;align-items:center;gap:11px;font-size:14px;font-weight:500;
  color:rgba(188,216,255,.72);white-space:nowrap;letter-spacing:.02em}
.marquee-track i{width:5px;height:5px;border-radius:50%;background:var(--blue-400);flex:0 0 auto;
  box-shadow:0 0 8px rgba(94,165,255,.9)}

/* ============ 8. 内页页头 ============ */
.page-hero{position:relative;padding:calc(var(--nav-h) + 74px) 0 84px;overflow:hidden;color:#fff;
  background:linear-gradient(158deg,#021026 0%,#062249 42%,#0a3672 78%,#0f4a92 100%)}
.page-hero .hero-grid-lines{opacity:.24}
.page-hero-glow{position:absolute;width:560px;height:560px;border-radius:50%;filter:blur(90px);pointer-events:none;
  top:-250px;right:-140px;background:radial-gradient(circle,#2b7ef0 0%,transparent 68%);opacity:.45;
  animation:drift1 24s ease-in-out infinite}
.page-hero::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:linear-gradient(90deg,transparent,rgba(94,165,255,.7),transparent)}
.page-hero .container{position:relative;z-index:3}
.crumb{display:flex;align-items:center;gap:9px;font-size:13px;color:rgba(188,216,255,.66);margin-bottom:20px;flex-wrap:wrap}
.crumb a{transition:color .3s var(--ease)}
.crumb a:hover{color:#fff}
.crumb svg{width:13px;height:13px;opacity:.6;flex:0 0 auto}
.crumb .cur{color:#fff;font-weight:600}
.page-hero h1{font-size:clamp(30px,3.9vw,46px);letter-spacing:-.024em;line-height:1.2;font-weight:800}
.page-hero .sub{margin-top:20px;font-size:16.5px;line-height:1.85;color:rgba(214,232,255,.8);max-width:720px}
.page-hero .page-actions{margin-top:34px}
.page-hero .hero-tags{margin-top:28px}

/* ============ 9. 数据条 ============ */
.stats{padding:0;position:relative;z-index:6}
.stats.lift{margin-top:-52px}
.stats-card{background:#fff;border-radius:24px;box-shadow:var(--shadow);border:1px solid var(--line);
  display:grid;grid-template-columns:repeat(4,1fr);overflow:hidden}
.stat{padding:38px 26px;text-align:center;position:relative;transition:background .4s var(--ease)}
.stat:hover{background:var(--blue-50)}
.stat+.stat::before{content:"";position:absolute;left:0;top:24%;bottom:24%;width:1px;background:var(--line)}
.stat b{display:block;font-size:40px;font-weight:800;letter-spacing:-.035em;
  background:linear-gradient(140deg,var(--blue-500),var(--blue-600) 60%,var(--navy-700));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;line-height:1.1}
.stat span{display:block;margin-top:9px;font-size:14px;color:var(--muted);font-weight:500}
.stats.mini .stat{padding:28px 20px}
.stats.mini .stat b{font-size:32px}

/* ============ 10. 卡片网格 ============ */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.svc{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:34px 30px 32px;overflow:hidden;display:flex;flex-direction:column;
  transition:transform .45s var(--ease),box-shadow .45s var(--ease),border-color .45s var(--ease)}
.svc::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;border-radius:3px 3px 0 0;
  background:linear-gradient(90deg,var(--blue-500),var(--cyan));transform:scaleX(0);transform-origin:left;
  transition:transform .5s var(--ease)}
.svc::after{content:"";position:absolute;width:200px;height:200px;border-radius:50%;right:-90px;top:-90px;
  background:radial-gradient(circle,rgba(43,126,240,.12),transparent 70%);opacity:0;transition:opacity .5s var(--ease)}
.svc:hover{transform:translateY(-9px);box-shadow:var(--shadow);border-color:var(--blue-200)}
.svc:hover::before{transform:scaleX(1)}
.svc:hover::after{opacity:1}
.svc-ico{width:56px;height:56px;border-radius:16px;display:grid;place-items:center;margin-bottom:22px;
  background:linear-gradient(140deg,var(--blue-50),var(--blue-100));border:1px solid var(--blue-200);
  color:var(--blue-600);position:relative;transition:.5s var(--ease)}
.svc-ico svg{width:27px;height:27px}
.svc:hover .svc-ico{transform:translateY(-3px) rotate(-5deg) scale(1.06);
  background:linear-gradient(140deg,var(--blue-500),var(--blue-600));color:#fff;border-color:transparent;
  box-shadow:0 12px 26px rgba(16,99,213,.32)}
.svc h3{font-size:19.5px;color:var(--navy-800);margin-bottom:11px}
.svc p{font-size:14.5px;color:var(--muted);line-height:1.8;flex:1}
.svc-more{display:inline-flex;align-items:center;gap:6px;margin-top:20px;font-size:13.5px;font-weight:600;
  color:var(--blue-600);transition:.42s var(--ease)}
.svc-more svg{width:15px;height:15px;transition:transform .42s var(--ease)}
.svc:hover .svc-more svg{transform:translateX(4px)}
.svc-num{position:absolute;right:24px;top:22px;font-size:46px;font-weight:800;letter-spacing:-.05em;
  color:rgba(16,99,213,.06);line-height:1;transition:color .45s var(--ease)}
.svc:hover .svc-num{color:rgba(16,99,213,.12)}

/* 内页：服务要点清单 */
.check-list{display:grid;gap:13px;margin-top:26px}
.check-list li{display:flex;gap:13px;align-items:flex-start;font-size:15px;color:var(--ink-2);line-height:1.72}
.check-list li svg{width:20px;height:20px;flex:0 0 auto;margin-top:3px;color:var(--blue-500)}
.check-list li b{color:var(--navy-800);font-weight:600}
.tick-list{display:grid;gap:11px;margin-top:24px}
.tick-list.two{grid-template-columns:1fr 1fr}
.tick-list li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--ink-2);line-height:1.7}
.tick-list li svg{width:17px;height:17px;flex:0 0 auto;margin-top:4px;color:var(--blue-500)}

/* ============ 11. 分屏 ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}
.split+.split{margin-top:104px}
.split.rev .split-visual{order:2}
.split-copy h2,.split-copy h3{font-size:clamp(24px,2.7vw,33px);color:var(--navy-800);letter-spacing:-.02em;line-height:1.32}
.split-copy>p{margin-top:20px;font-size:16px;color:var(--muted);line-height:1.9}
.split-visual{position:relative}
.vis-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:30px;
  box-shadow:var(--shadow);position:relative;overflow:hidden}
.vis-card::before{content:"";position:absolute;inset:0;opacity:.5;
  background-image:linear-gradient(rgba(16,99,213,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(16,99,213,.045) 1px,transparent 1px);
  background-size:34px 34px}
.vis-card>*{position:relative;z-index:1}
.vis-row{display:flex;align-items:center;gap:14px;padding:14px 16px;border-radius:13px;
  background:var(--blue-50);border:1px solid rgba(16,99,213,.1);margin-bottom:11px;transition:.38s var(--ease)}
.vis-row:hover{transform:translateX(5px);background:#fff;box-shadow:var(--shadow-sm);border-color:var(--blue-200)}
.vis-row:last-child{margin-bottom:0}
.vis-row .ic{width:38px;height:38px;border-radius:11px;flex:0 0 auto;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--blue-500),var(--blue-600));color:#fff}
.vis-row .ic svg{width:19px;height:19px}
.vis-row b{display:block;font-size:14.5px;color:var(--navy-800);font-weight:600}
.vis-row small{font-size:12.5px;color:var(--muted)}
.vis-row .tag{margin-left:auto;font-size:11.5px;font-weight:600;padding:4px 10px;border-radius:7px;flex:0 0 auto;
  background:rgba(74,222,128,.13);color:#1c8a4a;border:1px solid rgba(74,222,128,.3)}
.vis-row .tag.warn{background:rgba(43,126,240,.1);color:var(--blue-600);border-color:var(--blue-200)}
.vis-row .tag.gray{background:#eef3fa;color:var(--muted);border-color:#e0e9f5}
.donut{display:flex;align-items:center;gap:24px}
.donut svg{width:132px;height:132px;flex:0 0 auto;transform:rotate(-90deg)}
.donut circle{fill:none;stroke-linecap:round}
.donut .bg{stroke:var(--blue-100);stroke-width:11}
.donut .fg{stroke:url(#dg);stroke-width:11;stroke-dasharray:326;stroke-dashoffset:326;
  transition:stroke-dashoffset 1.6s var(--ease-out)}
.donut-txt b{display:block;font-size:26px;font-weight:800;color:var(--navy-800);letter-spacing:-.03em}
.donut-txt span{font-size:13.5px;color:var(--muted);line-height:1.7;display:block}

/* ============ 12. 服务流程（已去掉连接长线，每步独立成块） ============ */
.timeline{position:relative;display:grid;grid-template-columns:repeat(5,1fr);gap:18px;
  align-items:stretch}
.timeline.four{grid-template-columns:repeat(4,1fr)}
/* 取消贯穿的连接长线与蓝色进度填充 */
.timeline::before,.tl-fill{display:none}
.step{position:relative;display:flex;flex-direction:column;
  background:rgba(255,255,255,.045);border:1px solid rgba(160,200,255,.16);border-radius:18px;
  padding:26px 20px 24px;transition:transform .45s var(--ease),background .45s var(--ease),
  border-color .45s var(--ease),box-shadow .45s var(--ease)}
.step:hover{transform:translateY(-6px);background:rgba(255,255,255,.08);border-color:rgba(160,200,255,.36);
  box-shadow:0 18px 44px rgba(3,16,42,.45)}
.step-num{width:62px;height:62px;margin:0 auto 18px;border-radius:19px;display:grid;place-items:center;flex:none;
  background:rgba(255,255,255,.07);border:1px solid rgba(160,200,255,.28);position:relative;z-index:2;
  font-size:22px;font-weight:800;color:#9fc6f5;transition:.45s var(--ease)}
.step:hover .step-num{background:linear-gradient(140deg,var(--blue-500),var(--blue-600));color:#fff;border-color:transparent;
  box-shadow:0 14px 34px rgba(16,99,213,.5)}
.step h4{font-size:16.5px;color:#fff;margin-bottom:8px;text-align:center}
.step p{font-size:13.5px;color:rgba(188,216,255,.72);line-height:1.72;text-align:center}
.step-tag{display:block;width:fit-content;margin:12px auto 0;font-size:11.5px;font-weight:600;padding:3px 10px;border-radius:6px;
  background:rgba(94,165,255,.14);color:#9fc6f5;border:1px solid rgba(94,165,255,.26)}

/* 浅色时间轴（内页） */
.timeline.light .step{background:#fff;border-color:var(--line);box-shadow:var(--shadow-xs)}
.timeline.light .step:hover{border-color:var(--blue-200);box-shadow:var(--shadow);transform:translateY(-6px)}
.timeline.light .step-num{background:var(--blue-50);border-color:var(--blue-100);color:var(--blue-600)}
.timeline.light .step:hover .step-num{background:linear-gradient(140deg,var(--blue-500),var(--blue-600));
  color:#fff;border-color:transparent;box-shadow:0 12px 28px rgba(16,99,213,.32)}
.timeline.light .step h4{color:var(--navy-800)}
.timeline.light .step p{color:var(--muted)}
.timeline.light .step-tag{background:var(--blue-50);color:var(--blue-600);border-color:var(--blue-100)}

/* 竖排步骤（内页常用） */
.steps-v{display:grid;gap:0;margin-top:34px;position:relative}
.step-v{position:relative;display:grid;grid-template-columns:52px 1fr;gap:20px;padding-bottom:30px}
.step-v:last-child{padding-bottom:0}
.step-v::before{content:"";position:absolute;left:25px;top:52px;bottom:0;width:2px;background:var(--blue-100)}
.step-v:last-child::before{display:none}
.step-v .n{width:52px;height:52px;border-radius:15px;display:grid;place-items:center;font-size:17px;font-weight:800;
  background:linear-gradient(140deg,var(--blue-500),var(--blue-600));color:#fff;position:relative;z-index:1;
  box-shadow:0 10px 24px rgba(16,99,213,.26)}
.step-v h4{font-size:17.5px;color:var(--navy-800);margin-bottom:8px;margin-top:12px}
.step-v p{font-size:14.8px;color:var(--muted);line-height:1.85}

/* ============ 13. 优势 / 行业 ============ */
.adv{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 28px;
  transition:transform .45s var(--ease),box-shadow .45s var(--ease)}
.adv:hover{transform:translateY(-7px);box-shadow:var(--shadow)}
.adv-ico{width:46px;height:46px;border-radius:13px;display:grid;place-items:center;margin-bottom:18px;
  background:linear-gradient(140deg,var(--blue-500),var(--blue-600));color:#fff;box-shadow:0 10px 24px rgba(16,99,213,.28)}
.adv-ico svg{width:23px;height:23px}
.adv h4{font-size:17px;color:var(--navy-800);margin-bottom:9px}
.adv p{font-size:14.5px;color:var(--muted);line-height:1.8}

.ind{position:relative;border-radius:16px;padding:28px 22px;background:#fff;border:1px solid var(--line);
  overflow:hidden;transition:transform .45s var(--ease),box-shadow .45s var(--ease)}
.ind::before{content:"";position:absolute;inset:0;opacity:0;transition:opacity .45s var(--ease);
  background:linear-gradient(150deg,var(--blue-600),var(--navy-700))}
.ind:hover{transform:translateY(-8px);box-shadow:var(--shadow)}
.ind:hover::before{opacity:1}
.ind>*{position:relative;z-index:1;transition:color .4s var(--ease)}
.ind-ico{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;margin-bottom:16px;
  background:var(--blue-50);color:var(--blue-600);transition:.45s var(--ease)}
.ind-ico svg{width:21px;height:21px}
.ind:hover .ind-ico{background:rgba(255,255,255,.18);color:#fff}
.ind h4{font-size:16px;color:var(--navy-800);margin-bottom:7px}
.ind p{font-size:13.5px;color:var(--muted);line-height:1.72}
.ind:hover h4{color:#fff}
.ind:hover p{color:rgba(214,232,255,.82)}

/* ============ 14. 资讯 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 26px;transition:.45s var(--ease);height:100%}
.news-card:hover{transform:translateY(-8px);box-shadow:var(--shadow);border-color:var(--blue-200)}
.news-meta{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--muted);margin-bottom:15px;flex-wrap:wrap}
.news-meta .cat{font-weight:600;color:var(--blue-600);background:var(--blue-50);padding:3px 9px;border-radius:6px;border:1px solid var(--blue-100)}
.news-card h3,.news-card h4{font-size:16.5px;line-height:1.6;color:var(--navy-800);margin-bottom:11px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .35s var(--ease)}
.news-card:hover h3,.news-card:hover h4{color:var(--blue-600)}
.news-card p{font-size:14px;color:var(--muted);line-height:1.78;flex:1;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-foot{display:flex;align-items:center;gap:7px;margin-top:20px;padding-top:18px;border-top:1px solid var(--line);
  font-size:13px;font-weight:600;color:var(--blue-600)}
.news-foot svg{width:15px;height:15px;transition:transform .4s var(--ease)}
.news-card:hover .news-foot svg{transform:translateX(4px)}

/* 资讯列表行 */
.news-list{display:grid;gap:14px}
.news-row{display:grid;grid-template-columns:112px 1fr auto;gap:24px;align-items:center;background:#fff;
  border:1px solid var(--line);border-radius:16px;padding:22px 26px;transition:.42s var(--ease)}
.news-row:hover{transform:translateX(6px);box-shadow:var(--shadow-sm);border-color:var(--blue-200)}
.news-row .date{font-size:12.5px;color:var(--muted);font-weight:600;letter-spacing:.02em}
.news-row h3{font-size:16.5px;color:var(--navy-800);margin-bottom:7px;transition:color .35s var(--ease)}
.news-row:hover h3{color:var(--blue-600)}
.news-row p{font-size:14px;color:var(--muted);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-row .go{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;flex:0 0 auto;
  background:var(--blue-50);color:var(--blue-600);transition:.4s var(--ease)}
.news-row:hover .go{background:var(--blue-500);color:#fff}
.news-row .go svg{width:17px;height:17px}

/* ============ 15. FAQ ============ */
.faq{max-width:880px;margin:0 auto}
.q{border:1px solid var(--line);border-radius:15px;background:#fff;margin-bottom:13px;overflow:hidden;
  transition:box-shadow .4s var(--ease),border-color .4s var(--ease)}
.q.open{box-shadow:var(--shadow-sm);border-color:var(--blue-200)}
.q-btn{width:100%;display:flex;align-items:center;gap:15px;padding:21px 24px;background:none;border:0;
  cursor:pointer;text-align:left;font-size:16px;font-weight:600;color:var(--navy-800);transition:color .3s var(--ease)}
.q-btn:hover{color:var(--blue-600)}
.q-btn .mk{width:26px;height:26px;border-radius:8px;flex:0 0 auto;display:grid;place-items:center;
  background:var(--blue-50);color:var(--blue-600);font-size:12px;font-weight:700;border:1px solid var(--blue-100)}
.q-btn .arw{margin-left:auto;width:26px;height:26px;flex:0 0 auto;display:grid;place-items:center;border-radius:8px;
  background:var(--blue-50);transition:.4s var(--ease)}
.q-btn .arw svg{width:15px;height:15px;color:var(--blue-600)}
.q.open .q-btn .arw{transform:rotate(180deg);background:var(--blue-500)}
.q.open .q-btn .arw svg{color:#fff}
.q-body{max-height:0;overflow:hidden;transition:max-height .48s var(--ease)}
.q-body .in{padding:0 24px 24px 65px;font-size:14.8px;color:var(--muted);line-height:1.9}

/* ============ 16. CTA ============ */
.cta-band{position:relative;border-radius:26px;overflow:hidden;padding:66px 56px;
  background:linear-gradient(130deg,var(--navy-800) 0%,var(--navy-700) 42%,var(--blue-600) 100%);color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.cta-band::before{content:"";position:absolute;width:460px;height:460px;border-radius:50%;right:-130px;top:-190px;
  background:radial-gradient(circle,rgba(34,211,238,.3),transparent 68%);animation:drift1 20s ease-in-out infinite}
.cta-band::after{content:"";position:absolute;inset:0;opacity:.32;
  background-image:linear-gradient(rgba(160,200,255,.16) 1px,transparent 1px),linear-gradient(90deg,rgba(160,200,255,.16) 1px,transparent 1px);
  background-size:52px 52px}
.cta-band>*{position:relative;z-index:1}
.cta-band h2,.cta-band h3{font-size:clamp(24px,2.9vw,34px);letter-spacing:-.02em;margin-bottom:14px}
.cta-band p{font-size:16px;color:rgba(214,232,255,.82);max-width:560px;line-height:1.85}

/* ============ 17. 联系 / 表单 ============ */
.contact-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:56px;align-items:start}
.ct-list{display:grid;gap:14px;margin-top:34px}
.ct-item{display:flex;gap:16px;align-items:flex-start;padding:20px 22px;border-radius:15px;background:#fff;
  border:1px solid var(--line);transition:.4s var(--ease)}
.ct-item:hover{transform:translateX(6px);box-shadow:var(--shadow-sm);border-color:var(--blue-200)}
.ct-ico{width:44px;height:44px;border-radius:13px;flex:0 0 auto;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--blue-500),var(--blue-600));color:#fff;box-shadow:0 8px 20px rgba(16,99,213,.24)}
.ct-ico svg{width:21px;height:21px}
.ct-item b{display:block;font-size:12.5px;color:var(--muted);font-weight:600;letter-spacing:.06em;margin-bottom:3px}
.ct-item span{font-size:16px;font-weight:700;color:var(--navy-800)}
.ct-item span.sm{font-size:14.5px;font-weight:600;line-height:1.6}
.ct-item span a:hover{color:var(--blue-600)}

.form-card{background:#fff;border:1px solid var(--line);border-radius:24px;padding:38px 36px;box-shadow:var(--shadow);position:relative;overflow:hidden}
.form-card::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--blue-500),var(--cyan))}
.form-card h2,.form-card h3{font-size:22px;color:var(--navy-800);margin-bottom:8px}
.form-card>p{font-size:14.5px;color:var(--muted);margin-bottom:26px}
.f-fields{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.fld{display:flex;flex-direction:column;gap:8px}
.fld.full{grid-column:1/-1}
.fld label{font-size:13px;font-weight:600;color:var(--ink-2)}
.fld input,.fld textarea,.fld select{padding:13px 15px;border-radius:11px;border:1px solid #dbe7f7;background:#fbfdff;
  font-size:14.5px;color:var(--ink);font-family:inherit;outline:none;transition:.32s var(--ease);width:100%}
.fld textarea{resize:vertical;min-height:104px;line-height:1.7}
.fld input:focus,.fld textarea:focus,.fld select:focus{border-color:var(--blue-500);background:#fff;
  box-shadow:0 0 0 4px rgba(43,126,240,.11)}
.fld input::placeholder,.fld textarea::placeholder{color:#a8bdd8}
.f-note{margin-top:15px;font-size:12.5px;color:var(--muted);text-align:center;line-height:1.7}
.radio-pills{display:flex;flex-wrap:wrap;gap:10px}
.radio-pills label{position:relative;cursor:pointer}
.radio-pills input{position:absolute;opacity:0;width:0;height:0}
.radio-pills span{display:block;padding:10px 16px;border-radius:10px;border:1px solid var(--blue-100);
  background:var(--blue-50);font-size:13.5px;font-weight:600;color:var(--blue-600);transition:.32s var(--ease)}
.radio-pills input:checked+span{background:linear-gradient(135deg,var(--blue-500),var(--blue-600));color:#fff;
  border-color:transparent;box-shadow:0 8px 20px rgba(16,99,213,.3)}
.radio-pills label:hover span{transform:translateY(-2px)}

/* ============ 18. 表格（套餐/对比） ============ */
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.plan{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:32px 28px;
  display:flex;flex-direction:column;transition:.45s var(--ease)}
.plan:hover{transform:translateY(-8px);box-shadow:var(--shadow);border-color:var(--blue-200)}
.plan.hot{border-color:var(--blue-400);box-shadow:var(--shadow)}
.plan.hot::after{content:"推荐";position:absolute;top:-12px;right:22px;font-size:11.5px;font-weight:700;
  padding:4px 12px;border-radius:99px;background:linear-gradient(135deg,var(--blue-500),var(--blue-600));color:#fff;
  box-shadow:0 8px 20px rgba(16,99,213,.34)}
.plan h3{font-size:19px;color:var(--navy-800);margin-bottom:6px}
.plan .plan-sub{font-size:13.5px;color:var(--muted);margin-bottom:20px;min-height:46px}
.plan .plan-body{padding-top:20px;border-top:1px solid var(--line);margin-top:0;
  display:flex;flex-direction:column;flex:1}
.plan .plan-body b{display:block;font-size:13px;color:var(--muted);font-weight:600;margin-bottom:14px;letter-spacing:.04em}
.plan .plan-body ul{display:grid;gap:10px;align-content:start;margin-bottom:22px}
.plan .plan-body .btn{margin-top:auto}
.plan li{display:flex;gap:10px;font-size:14px;color:var(--ink-2);line-height:1.6}
.plan li svg{width:16px;height:16px;flex:0 0 auto;margin-top:4px;color:var(--blue-500)}

.tbl-wrap{border:1px solid var(--line);border-radius:18px;overflow:hidden;background:#fff;box-shadow:var(--shadow-xs)}
.tbl{width:100%;border-collapse:collapse;font-size:14.5px}
.tbl th,.tbl td{padding:16px 20px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
.tbl thead th{background:var(--blue-50);color:var(--navy-800);font-weight:700;font-size:13.5px;letter-spacing:.04em}
.tbl tbody tr:last-child td{border-bottom:0}
.tbl tbody tr{transition:background .32s var(--ease)}
.tbl tbody tr:hover{background:#fafcff}
.tbl td strong{color:var(--navy-800)}

/* 法规列表 */
.law-list{display:grid;gap:12px}
.law{display:flex;gap:14px;align-items:flex-start;padding:18px 20px;border-radius:14px;background:#fff;
  border:1px solid var(--line);transition:.4s var(--ease)}
.law:hover{transform:translateX(5px);border-color:var(--blue-200);box-shadow:var(--shadow-sm)}
.law .ic{width:36px;height:36px;border-radius:11px;flex:0 0 auto;display:grid;place-items:center;
  background:var(--blue-50);color:var(--blue-600)}
.law .ic svg{width:18px;height:18px}
.law b{display:block;font-size:15px;color:var(--navy-800);font-weight:600;line-height:1.5}
.law small{font-size:13px;color:var(--muted);line-height:1.65;display:block;margin-top:3px}

/* ============ 19. 案例卡 ============ */
.case-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;transition:.45s var(--ease);height:100%}
.case-card:hover{transform:translateY(-8px);box-shadow:var(--shadow);border-color:var(--blue-200)}
.case-top{position:relative;padding:34px 28px 28px;
  background:linear-gradient(140deg,var(--blue-50),var(--blue-100));border-bottom:1px solid var(--line);overflow:hidden}
.case-top::after{content:"";position:absolute;width:170px;height:170px;border-radius:50%;right:-70px;top:-70px;
  background:radial-gradient(circle,rgba(43,126,240,.2),transparent 70%)}
.case-top .ic{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;position:relative;z-index:1;
  background:linear-gradient(140deg,var(--blue-500),var(--blue-600));color:#fff;box-shadow:0 10px 24px rgba(16,99,213,.28)}
.case-top .ic svg{width:24px;height:24px}
.case-top .ind-tag{display:inline-block;margin-top:16px;position:relative;z-index:1;font-size:11.5px;font-weight:700;
  letter-spacing:.06em;color:var(--blue-600);background:#fff;padding:4px 11px;border-radius:6px;border:1px solid var(--blue-100)}
.case-body{padding:26px 28px 28px;display:flex;flex-direction:column;flex:1}
.case-body h3{font-size:18px;color:var(--navy-800);margin-bottom:11px}
.case-body p{font-size:14.5px;color:var(--muted);line-height:1.8;flex:1}
.case-meta{display:grid;gap:9px;margin-top:20px;padding-top:20px;border-top:1px solid var(--line)}
.case-meta div{display:flex;gap:9px;font-size:13.5px;color:var(--ink-2);line-height:1.65}
.case-meta div span{color:var(--muted);flex:0 0 auto;font-weight:600}
.case-meta svg{width:15px;height:15px;color:var(--blue-500);flex:0 0 auto;margin-top:3px}

/* ============ 20. 标签切换 ============ */
.tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:36px}
.tab{padding:10px 20px;border-radius:11px;border:1px solid var(--line);background:#fff;cursor:pointer;
  font-size:14px;font-weight:600;color:var(--ink-2);transition:.34s var(--ease);font-family:inherit}
.tab:hover{border-color:var(--blue-200);color:var(--blue-600);transform:translateY(-2px)}
.tab.active{background:linear-gradient(135deg,var(--blue-500),var(--blue-600));color:#fff;border-color:transparent;
  box-shadow:0 10px 24px rgba(16,99,213,.28)}
.tab-panel{display:none}
.tab-panel.active{display:block;animation:fadeUp .5s var(--ease-out)}

/* ============ 21. 分页 ============ */
.pager{display:flex;justify-content:center;gap:9px;margin-top:52px;flex-wrap:wrap}
.pager a,.pager span{min-width:42px;height:42px;padding:0 15px;border-radius:11px;display:grid;place-items:center;
  font-size:14px;font-weight:600;border:1px solid var(--line);background:#fff;color:var(--ink-2);transition:.32s var(--ease)}
.pager a:hover{border-color:var(--blue-200);color:var(--blue-600);transform:translateY(-2px)}
.pager .on{background:linear-gradient(135deg,var(--blue-500),var(--blue-600));color:#fff;border-color:transparent}

/* ============ 22. 页脚 ============ */
.footer{background:var(--navy-900);color:rgba(188,216,255,.7);padding:72px 0 0;position:relative;overflow:hidden}
.footer::before{content:"";position:absolute;width:600px;height:600px;border-radius:50%;left:50%;transform:translateX(-50%);
  top:-460px;background:radial-gradient(circle,rgba(43,126,240,.22),transparent 68%);pointer-events:none}
.f-main{position:relative;display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:46px;padding-bottom:52px}
.f-brand .logo{margin-bottom:20px}
.f-brand .logo .logo-img{height:46px}
.f-brand p{font-size:14px;line-height:1.9;max-width:330px}
.f-social{display:flex;gap:11px;margin-top:24px}
.f-social a{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  background:rgba(255,255,255,.06);border:1px solid rgba(160,200,255,.16);color:rgba(188,216,255,.8);transition:.4s var(--ease)}
.f-social a:hover{background:linear-gradient(140deg,var(--blue-500),var(--blue-600));color:#fff;
  border-color:transparent;transform:translateY(-4px);box-shadow:0 12px 26px rgba(16,99,213,.4)}
.f-social svg{width:19px;height:19px}
.f-col h5{font-size:14.5px;color:#fff;font-weight:700;margin-bottom:20px;letter-spacing:.04em}
.f-col li{margin-bottom:12px}
.f-col a{font-size:14px;transition:.32s var(--ease);display:inline-block}
.f-col a:hover{color:#fff;transform:translateX(4px)}
.f-col .sm{font-size:13.5px;line-height:1.85}
/* 页脚二维码（深色底 → 白底承载，保证扫码对比度） */
.f-qr{width:124px;height:124px;border-radius:14px;background:#fff;padding:7px;margin-top:18px;
  box-shadow:0 10px 26px rgba(3,21,48,.42);transition:transform .45s var(--ease),box-shadow .45s var(--ease)}
.f-qr img{width:100%;height:100%;object-fit:contain;display:block;border-radius:8px}
.f-qr:hover{transform:translateY(-5px) scale(1.03);box-shadow:0 18px 34px rgba(3,21,48,.5)}
.f-qr-tip{margin-top:10px;font-size:12px;color:rgba(188,216,255,.62);letter-spacing:.02em}
/* 浅色区二维码卡片 */
.qr-card{width:152px;height:152px;border-radius:16px;background:#fff;padding:9px;
  border:1px solid var(--line);box-shadow:0 12px 30px rgba(10,54,114,.12);
  transition:transform .45s var(--ease),box-shadow .45s var(--ease)}
.qr-card img{width:100%;height:100%;object-fit:contain;display:block;border-radius:10px}
.qr-card:hover{transform:translateY(-5px);box-shadow:0 20px 40px rgba(10,54,114,.18)}
/* 到访与联系信息行 */
.visit-note{font-size:13.8px;color:var(--ink-2);line-height:1.75}
.visit-note + .visit-note{margin-top:10px}
.visit-note b{color:var(--navy-800);font-weight:700;margin-right:8px}
.f-bottom{position:relative;border-top:1px solid rgba(160,200,255,.13);padding:24px 0;
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:13px}
.f-bottom .links{display:flex;gap:22px;flex-wrap:wrap;align-items:center}
.f-bottom a:hover{color:#fff}

/* ============ 23. 滚动渐入 ============ */
.reveal{opacity:0;transform:translateY(30px);transition:opacity .85s var(--ease-out),transform .85s var(--ease-out)}
.reveal.in{opacity:1;transform:none}
.reveal[data-d="1"]{transition-delay:.09s}
.reveal[data-d="2"]{transition-delay:.18s}
.reveal[data-d="3"]{transition-delay:.27s}
.reveal[data-d="4"]{transition-delay:.36s}
.reveal[data-d="5"]{transition-delay:.45s}
.reveal-scale{opacity:0;transform:scale(.96);transition:opacity .8s var(--ease-out),transform .8s var(--ease-out)}
.reveal-scale.in{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  .reveal,.reveal-scale{opacity:1;transform:none}
}

/* ============ 24. 动画关键帧 ============ */
@keyframes sheen{0%{transform:translateX(-120%)}55%,100%{transform:translateX(220%)}}
@keyframes pulseRing{0%{transform:scale(.7);opacity:.9}100%{transform:scale(1.9);opacity:0}}
@keyframes gradFlow{0%,100%{background-position:0% 50%}50%{background-position:100% 50%}}
@keyframes underlineIn{to{transform:scaleX(1)}}
@keyframes drift1{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(-46px,38px) scale(1.12)}}
@keyframes drift2{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(52px,-34px) scale(1.1)}}
@keyframes spinSlow{to{transform:rotate(360deg)}}
@keyframes dashMove{to{stroke-dashoffset:-64}}
@keyframes hvIn{from{opacity:0;transform:scale(.9)}to{opacity:1;transform:none}}
@keyframes hvGlow{0%,100%{opacity:.55;transform:scale(.96)}50%{opacity:1;transform:scale(1.06)}}
@keyframes hvFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-11px)}}
@keyframes shCheck{to{stroke-dashoffset:0}}
@keyframes shBeam{0%{transform:translateY(0);opacity:0}12%{opacity:1}88%{opacity:1}100%{transform:translateY(268px);opacity:0}}
@keyframes shNode{0%,100%{opacity:.45}50%{opacity:1}}
@keyframes hvDust{0%{opacity:0;bottom:2%}14%{opacity:.9}72%{opacity:.42}100%{opacity:0;bottom:82%}}
@keyframes fadeUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
@keyframes marquee{to{transform:translateX(-50%)}}

/* ============ 24b. AI 视觉方案页组件 ============ */
/* 配图卡片 */
.aip-photo{position:relative;margin:0;border-radius:22px;overflow:hidden;
  border:1px solid rgba(160,200,255,.24);box-shadow:var(--shadow);background:var(--navy-700)}
.aip-photo img{width:100%;height:auto;aspect-ratio:4/3;object-fit:cover;display:block;
  transition:transform 1.2s var(--ease)}
.aip-photo:hover img{transform:scale(1.045)}
.aip-photo::after{content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(3,21,48,0) 44%,rgba(3,21,48,.68) 100%)}
.aip-photo figcaption{position:absolute;left:24px;right:24px;bottom:22px;z-index:2;color:#fff}
.aip-photo figcaption b{display:block;font-size:16px;font-weight:700}
.aip-photo figcaption span{display:block;margin-top:5px;font-size:13px;
  color:rgba(206,228,255,.84);line-height:1.62}
.aip-chip{position:absolute;top:18px;left:18px;z-index:2;display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:99px;font-size:12px;font-weight:600;color:#eaf4ff;
  background:rgba(3,21,48,.58);border:1px solid rgba(160,200,255,.34);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.aip-chip i{width:6px;height:6px;border-radius:50%;background:var(--cyan);
  animation:aipPulse 2.4s var(--ease-out) infinite}
@keyframes aipPulse{
  0%{box-shadow:0 0 0 0 rgba(34,211,238,.7)}
  70%{box-shadow:0 0 0 9px rgba(34,211,238,0)}
  100%{box-shadow:0 0 0 0 rgba(34,211,238,0)}}

/* 说明性小字 */
.aip-note{margin-top:34px;text-align:center;font-size:13.5px;color:var(--muted);line-height:1.8;
  padding:16px 22px;border-radius:14px;background:var(--blue-50);border:1px solid var(--line)}

/* 方案痛点（深色区） */
.aip-pain{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.aip-pain-card{position:relative;border-radius:var(--radius);padding:30px 30px 28px;
  background:linear-gradient(155deg,rgba(255,255,255,.075),rgba(255,255,255,.022));
  border:1px solid rgba(160,200,255,.18);
  backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
  transition:transform .5s var(--ease),border-color .5s var(--ease),background .5s var(--ease)}
.aip-pain-card:hover{transform:translateY(-7px);border-color:rgba(160,200,255,.42);
  background:linear-gradient(155deg,rgba(255,255,255,.115),rgba(255,255,255,.04))}
.aip-pain-card .n{position:absolute;right:26px;top:20px;font-size:42px;font-weight:800;
  letter-spacing:-.05em;line-height:1;color:rgba(180,214,255,.16);transition:color .5s var(--ease)}
.aip-pain-card:hover .n{color:rgba(180,214,255,.3)}
.aip-pain-card h4{display:flex;align-items:center;gap:11px;font-size:17.5px;color:#fff;
  margin-bottom:12px;padding-right:58px}
.aip-pain-card h4 svg{width:21px;height:21px;flex:0 0 auto;color:#ff9f6e}
.aip-pain-card p{font-size:14.5px;color:rgba(188,216,255,.74);line-height:1.84}

/* 方案价值 */
.aip-val{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.aip-val-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:32px 28px;
  transition:transform .5s var(--ease),box-shadow .5s var(--ease),border-color .5s var(--ease)}
.aip-val-card:hover{transform:translateY(-8px);box-shadow:var(--shadow);border-color:var(--blue-200)}
.aip-val-card .ico{width:46px;height:46px;border-radius:13px;display:grid;place-items:center;
  background:var(--blue-50);color:var(--blue-600);border:1px solid var(--blue-100);margin-bottom:20px;
  transition:background .5s var(--ease),color .5s var(--ease),border-color .5s var(--ease)}
.aip-val-card .ico svg{width:23px;height:23px}
.aip-val-card:hover .ico{background:linear-gradient(140deg,var(--blue-500),var(--blue-600));
  color:#fff;border-color:transparent}
.aip-val-card .metric{display:flex;align-items:baseline;gap:10px;margin-bottom:14px;flex-wrap:wrap}
.aip-val-card .metric b{font-size:34px;font-weight:800;letter-spacing:-.04em;line-height:1;
  background:linear-gradient(96deg,var(--blue-600),var(--cyan));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.aip-val-card .metric span{font-size:12.5px;color:var(--muted);font-weight:500}
.aip-val-card h4{font-size:17px;color:var(--navy-800);margin-bottom:9px}
.aip-val-card p{font-size:14.5px;color:var(--muted);line-height:1.82}

/* 方案架构 */
.aip-arch{display:grid;gap:16px}
.aip-layer{display:grid;grid-template-columns:236px 1fr;gap:28px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 28px;
  transition:transform .5s var(--ease),box-shadow .5s var(--ease),border-color .5s var(--ease)}
.aip-layer:hover{transform:translateX(6px);box-shadow:var(--shadow-sm);border-color:var(--blue-200)}
.aip-layer .lay-head{display:flex;align-items:center;gap:14px}
.aip-layer .lay-ico{width:50px;height:50px;border-radius:15px;flex:0 0 auto;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--blue-500),var(--blue-600) 55%,var(--navy-700));
  color:#fff;box-shadow:0 10px 22px rgba(16,99,213,.3);transition:transform .5s var(--ease)}
.aip-layer:hover .lay-ico{transform:rotate(-6deg) scale(1.06)}
.aip-layer .lay-ico svg{width:23px;height:23px}
.aip-layer .lay-head b{display:block;font-size:17px;color:var(--navy-800);line-height:1.3}
.aip-layer .lay-head small{display:block;margin-top:3px;font-size:11px;font-weight:600;
  letter-spacing:.14em;color:var(--blue-500)}
.aip-layer .lay-items{display:flex;flex-wrap:wrap;gap:9px}
.aip-layer .lay-items span{font-size:13.5px;color:var(--ink-2);padding:7px 14px;border-radius:99px;
  background:var(--blue-50);border:1px solid var(--blue-100);transition:all .35s var(--ease)}
.aip-layer .lay-items span:hover{background:#fff;border-color:var(--blue-200);color:var(--blue-600);
  transform:translateY(-2px);box-shadow:var(--shadow-xs)}

/* 算法能力 */
.aip-algo{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.aip-algo-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:28px 28px 26px;
  transition:transform .5s var(--ease),box-shadow .5s var(--ease),border-color .5s var(--ease)}
.aip-algo-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--blue-200)}
.aip-algo-card h4{display:flex;align-items:center;gap:10px;font-size:16.5px;color:var(--navy-800);
  margin-bottom:18px}
.aip-algo-card h4 svg{width:20px;height:20px;flex:0 0 auto;color:var(--blue-500)}
.aip-algo-card h4 em{font-style:normal;margin-left:auto;font-size:11.5px;font-weight:600;
  color:var(--blue-600);background:var(--blue-50);border:1px solid var(--blue-100);
  padding:3px 10px;border-radius:99px;white-space:nowrap}
.aip-tags{display:flex;flex-wrap:wrap;gap:8px}
.aip-tags span{font-size:13px;color:var(--ink-2);padding:6px 13px;border-radius:9px;
  background:var(--blue-50);border:1px solid var(--line);transition:all .35s var(--ease)}
.aip-tags span:hover{background:var(--blue-500);border-color:transparent;color:#fff;
  transform:translateY(-2px);box-shadow:0 8px 18px rgba(16,99,213,.28)}

/* 适用行业（配图卡） */
.aip-ind{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;
  transition:transform .5s var(--ease),box-shadow .5s var(--ease),border-color .5s var(--ease)}
.aip-ind:hover{transform:translateY(-9px);box-shadow:var(--shadow);border-color:var(--blue-200)}
.aip-ind-img{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--navy-700)}
.aip-ind-img img{width:100%;height:100%;object-fit:cover;transition:transform 1.1s var(--ease)}
.aip-ind:hover .aip-ind-img img{transform:scale(1.07)}
.aip-ind-img::after{content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(3,21,48,.06) 42%,rgba(3,21,48,.54) 100%)}
.aip-ind-tag{position:absolute;left:16px;bottom:15px;z-index:2;font-size:12px;font-weight:600;
  color:#eaf4ff;padding:5px 13px;border-radius:99px;background:rgba(3,21,48,.55);
  border:1px solid rgba(160,200,255,.3);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.aip-ind-body{display:flex;flex-direction:column;flex:1;padding:24px 24px 26px}
.aip-ind-body h4{font-size:16.5px;color:var(--navy-800);margin-bottom:10px}
.aip-ind-body p{font-size:13.8px;color:var(--muted);line-height:1.8;flex:1}

@media (max-width:1080px){
  .aip-layer{grid-template-columns:196px 1fr;gap:20px}
  .aip-pain,.aip-val,.aip-algo{grid-template-columns:repeat(2,1fr)}
  .aip-layer .lay-items span{font-size:13px;padding:6px 12px}
}
@media (max-width:720px){
  .aip-pain,.aip-val,.aip-algo{grid-template-columns:1fr}
  .aip-layer{grid-template-columns:1fr;gap:16px;align-items:start;padding:22px 20px}
  .aip-layer:hover{transform:none}
  .aip-layer .lay-items span{font-size:13px;padding:6px 12px}
  .aip-photo figcaption{left:18px;right:18px;bottom:18px}
  .aip-photo figcaption b{font-size:15px}
  .aip-photo figcaption span{font-size:12.5px}
  .aip-chip{top:14px;left:14px;font-size:11.5px;padding:6px 12px}
  .aip-pain-card{padding:26px 22px 24px}
  .aip-pain-card h4{font-size:16.5px;padding-right:50px}
  .aip-pain-card .n{font-size:34px;right:20px;top:18px}
  .aip-val-card{padding:26px 22px}
  .aip-val-card .metric b{font-size:30px}
  .aip-algo-card{padding:24px 22px}
  .aip-algo-card h4{font-size:15.5px;flex-wrap:wrap}
  .aip-ind-body{padding:20px 20px 22px}
  .aip-note{text-align:left;padding:14px 18px;font-size:13px;margin-top:26px}
}

/* ============ 25. 响应式 ============ */
@media (max-width:1240px){
  .nav-tel{display:none}
}
@media (max-width:1080px){
  .hero-inner{grid-template-columns:1fr;gap:56px;padding-bottom:60px}
  .hero-panel{min-height:400px}
  .hero-visual{width:min(380px,100%)}
  .nav-links{display:none}
  .grid-3,.grid-4,.adv-grid,.plan-grid{grid-template-columns:repeat(2,1fr)}
  .ind-grid{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:44px}
  .split.rev .split-visual{order:0}
  .timeline,.timeline.four{grid-template-columns:repeat(2,1fr);gap:18px}
  .contact-grid{grid-template-columns:1fr;gap:44px}
  .f-main{grid-template-columns:1fr 1fr;gap:38px}
  .stats-card{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(3)::before{display:none}
  .news-row{grid-template-columns:1fr;gap:12px}
  .news-row .go{display:none}
  .tick-list.two{grid-template-columns:1fr}
}
@media (max-width:720px){
  .container,.hero-inner,.nav-inner{padding-left:20px;padding-right:20px}
  .section{padding:76px 0}
  .section--tight{padding:60px 0}
  .burger{display:grid}
  .nav-links{display:none;position:absolute;top:var(--nav-h);left:16px;right:16px;flex-direction:column;
    align-items:stretch;gap:2px;padding:14px;border-radius:18px;background:#fff;box-shadow:var(--shadow-lg);
    border:1px solid var(--line);max-height:calc(100vh - var(--nav-h) - 32px);overflow-y:auto}
  .nav-links.open{display:flex}
  .nav-links a.nav-a{color:var(--ink-2)!important;padding:13px 15px;font-size:15px}
  .nav-links a.nav-a:hover,.nav-links a.nav-a.active{background:var(--blue-50)!important;color:var(--blue-600)!important}
  .nav-links a.nav-a::after{display:none}
  .nav-item{width:100%}
  .drop{position:static;opacity:1;visibility:visible;pointer-events:auto;transform:none;box-shadow:none;
    border:0;padding:0 0 6px 14px;min-width:0;background:transparent}
  .drop::before{display:none}
  .drop a{padding:10px 13px;color:var(--muted);font-size:14px}
  .drop a span.d-ic{display:none}
  .caret{display:none}
  .grid-2,.grid-3,.grid-4,.adv-grid,.ind-grid,.news-grid,.plan-grid,.f-fields,.tabs{grid-template-columns:1fr}
  .timeline,.timeline.four{grid-template-columns:1fr;gap:14px}
  .step{text-align:left;display:grid;grid-template-columns:62px 1fr;gap:18px;align-items:start;padding:22px 20px}
  .step-num{margin:0}
  .step-body{align-self:center}
  .step h4,.step p{text-align:left}
  .step-tag{margin-left:0}
  .stats-card{grid-template-columns:1fr 1fr}
  .f-main{grid-template-columns:1fr}
  .cta-band{padding:44px 28px}
  .form-card{padding:30px 22px}
  .hero-visual{width:min(330px,100%)}
  .hv-shield{width:66%}
  .hv-dust{inset:4%}
  .hero h1{font-size:34px}
  .stat b{font-size:32px}
  .q-body .in{padding-left:24px}
  .page-hero{padding:calc(var(--nav-h) + 48px) 0 60px}
  .vis-card{padding:22px}
  .donut{flex-direction:column;align-items:flex-start;gap:18px}
  .step-v{grid-template-columns:44px 1fr;gap:15px}
  .step-v .n{width:44px;height:44px;border-radius:13px;font-size:15px}
  .step-v::before{left:21px;top:44px}
  .tbl-wrap{overflow-x:auto}
  .tbl{min-width:560px}

  /* ---- 移动端专项优化 ---- */
  /* 首屏更紧凑：让核心信息与按钮落在第一屏内 */
  .hero{padding:calc(var(--nav-h) + 30px) 0 0}
  .hero-inner{gap:34px;padding-bottom:44px}
  /* 输入框字号不小于 16px，否则 iOS Safari 聚焦时会自动放大页面 */
  .fld input,.fld textarea,.fld select{font-size:16px}
  /* 触摸目标不小于 44px */
  .fld input,.fld select{min-height:46px}
  /* FAQ 问题行收紧左右内边距，把宽度让给正文 */
  .q-btn{padding:17px 15px;gap:12px}
}

/* ============ 26. 工具类 ============ */
.mt-0{margin-top:0}
.mt-18{margin-top:18px}
.mt-26{margin-top:26px}
.mt-34{margin-top:34px}
.mt-44{margin-top:44px}
.mt-56{margin-top:56px}
.center{text-align:center}
.muted{color:var(--muted)}
.note{font-size:13px;color:var(--muted);line-height:1.75}
.divider{height:1px;background:var(--line);margin:44px 0}