/* ================= 设计系统：Sky Tech（亮空科技） ================= */
:root{
  --sky-950:#0c4a8c;
  --sky-900:#0e5aa8;
  --sky-800:#1565c0;
  --sky-700:#1e6fd9;
  --sky-600:#2f7cf6;
  --sky-500:#3b82f6;
  --sky-400:#4f9df9;
  --cyan-500:#06b6d4;
  --cyan-400:#22d3ee;
  --cyan-300:#67e8f9;
  --cyan-200:#a5f3fc;
  --teal-400:#2dd4bf;
  --ink:#0e3a66;
  --text:#234a75;
  --muted:#5b7da6;
  --bg:#f2f7ff;
  --bg-soft:#e8f2fd;
  --card:#ffffff;
  --border:rgba(30,111,217,.14);
  --shadow-sm:0 4px 14px rgba(14,90,168,.08);
  --shadow-md:0 12px 34px rgba(14,90,168,.13);
  --shadow-lg:0 24px 60px rgba(14,90,168,.17);
  --radius:18px;
  --maxw:1200px;
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:78px}
body{font-family:var(--font);color:var(--text);background:var(--bg);line-height:1.75;font-size:16px;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
ul{list-style:none}
section{position:relative}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.sec-pad{padding:96px 0}

.sec-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.16em;color:var(--sky-600);background:rgba(47,124,246,.08);border:1px solid rgba(47,124,246,.2);padding:6px 16px;border-radius:999px;margin-bottom:18px}
.sec-title{font-size:clamp(26px,4vw,40px);font-weight:800;color:var(--ink);letter-spacing:.01em;line-height:1.25;word-break:keep-all;text-wrap:balance}
.sec-sub{font-size:16px;color:var(--muted);max-width:680px;margin-top:14px;word-break:keep-all}
.center{text-align:center}
.center .sec-sub{margin-left:auto;margin-right:auto}

/* 发光按钮 */
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 30px;border-radius:999px;font-weight:600;font-size:15px;cursor:pointer;border:none;transition:all .3s ease;position:relative;overflow:hidden}
.btn-primary{background:linear-gradient(135deg,var(--sky-500),var(--cyan-400));color:#fff;box-shadow:0 0 24px rgba(47,124,246,.4)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 0 42px rgba(47,124,246,.65),0 12px 30px rgba(47,124,246,.35)}
.btn-primary::after{content:"";position:absolute;top:0;left:-80%;width:50%;height:100%;background:linear-gradient(100deg,transparent,rgba(255,255,255,.35),transparent);transform:skewX(-20deg);transition:left .6s ease}
.btn-primary:hover::after{left:130%}
.btn-ghost{background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.45);backdrop-filter:blur(8px)}
.btn-ghost:hover{background:rgba(255,255,255,.25);transform:translateY(-3px);box-shadow:0 0 30px rgba(125,211,252,.4)}
.btn-outline{background:#fff;color:var(--sky-600);border:1.5px solid rgba(47,124,246,.4);box-shadow:var(--shadow-sm)}
.btn-outline:hover{background:rgba(47,124,246,.06);transform:translateY(-3px);box-shadow:0 8px 24px rgba(47,124,246,.25)}

/* 滚动进度条 */
.scroll-progress{position:fixed;top:0;left:0;height:3px;z-index:2000;background:linear-gradient(90deg,var(--sky-500),var(--cyan-400),var(--teal-400));width:0%;transition:width .1s linear;box-shadow:0 0 12px rgba(47,124,246,.6)}

/* ================= 顶部导航 ================= */
.nav{position:fixed;top:0;left:0;right:0;z-index:1000;transition:all .35s ease;padding:14px 0}
.nav.scrolled{background:rgba(255,255,255,.92);backdrop-filter:blur(18px);box-shadow:0 6px 26px rgba(14,90,168,.12);padding:8px 0}
.nav-inner{max-width:var(--maxw);margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:12px}
.brand-img{height:44px;width:auto;display:block;background:#fff;padding:6px 14px;border-radius:10px;box-shadow:0 4px 14px rgba(14,90,168,.18);transition:height .3s ease}
.nav.scrolled .brand-img{height:36px}
.nav-links{display:flex;align-items:center;gap:2px}
.nav-links a{color:#fff;font-size:14.5px;font-weight:500;padding:8px 12px;border-radius:999px;transition:all .25s ease;position:relative;white-space:nowrap;flex-shrink:0}
.nav-links a::after{content:"";position:absolute;left:50%;bottom:2px;width:0;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--cyan-200),var(--teal-400));transform:translateX(-50%);transition:width .3s ease}
.nav-links a:hover::after{width:60%}
.nav-links a:hover{color:#fff}
.nav.scrolled .nav-links a{color:var(--text)}
.nav.scrolled .nav-links a:hover{color:var(--sky-600)}
.nav.scrolled .nav-links a::after{background:linear-gradient(90deg,var(--sky-500),var(--cyan-400))}
.nav-cta{background:linear-gradient(135deg,var(--sky-500),var(--cyan-400));color:#fff !important;font-weight:600 !important;box-shadow:0 0 18px rgba(47,124,246,.5);white-space:nowrap;flex-shrink:0;padding:9px 18px !important}
.nav-cta::after{display:none}
.nav-cta:hover{box-shadow:0 0 30px rgba(47,124,246,.75);transform:translateY(-2px)}
.hamburger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px;z-index:1100}
.hamburger span{display:block;width:26px;height:2.5px;background:#fff;border-radius:3px;transition:all .3s ease}
.nav.scrolled .hamburger span{background:var(--ink)}
.hamburger.open span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
.hamburger.open span:nth-child(2){opacity:0}
.hamburger.open span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}

/* ================= Hero（亮空） ================= */
.hero{min-height:100svh;display:flex;align-items:center;position:relative;overflow:hidden;background:linear-gradient(155deg,#1668dc 0%,#2f7cf6 30%,#3b82f6 52%,#22a7f0 78%,#4fc8f5 100%);color:#fff;padding:140px 0 120px}
#particleCanvas{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;z-index:1}
.grid-lines{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.08) 1px,transparent 1px);background-size:56px 56px;mask-image:radial-gradient(ellipse 80% 70% at 50% 40%,#000 35%,transparent 100%);pointer-events:none}
.glow{position:absolute;border-radius:50%;filter:blur(80px);pointer-events:none;opacity:.5}
.glow-1{width:480px;height:480px;background:radial-gradient(circle,rgba(125,211,252,.6),transparent 70%);top:-100px;right:-60px;animation:float1 10s ease-in-out infinite}
.glow-2{width:400px;height:400px;background:radial-gradient(circle,rgba(103,232,249,.4),transparent 70%);bottom:-120px;left:-40px;animation:float2 12s ease-in-out infinite}
.glow-3{width:260px;height:260px;background:radial-gradient(circle,rgba(165,243,252,.5),transparent 70%);top:45%;left:52%;animation:float1 14s ease-in-out infinite}
@keyframes float1{0%,100%{transform:translate(0,0)}50%{transform:translate(-30px,28px)}}
@keyframes float2{0%,100%{transform:translate(0,0)}50%{transform:translate(36px,-24px)}}
.hero-waves{position:absolute;bottom:-1px;left:0;right:0;line-height:0;z-index:3}
.hero-waves svg{width:100%;height:110px;display:block}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.hero-tag{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.4);color:#fff;padding:7px 16px;border-radius:999px;font-size:13px;font-weight:600;letter-spacing:.1em;margin-bottom:24px;backdrop-filter:blur(8px)}
.hero-tag::before{content:"";width:7px;height:7px;border-radius:50%;background:#a7f3d0;box-shadow:0 0 12px #a7f3d0;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.3}}
.hero h1{font-size:clamp(30px,4.6vw,52px);font-weight:800;line-height:1.16;letter-spacing:.01em;margin-bottom:18px;text-shadow:0 2px 26px rgba(14,74,140,.3)}
.hero h1 .grad{background:linear-gradient(90deg,#e0f2fe,#a7f3d0);-webkit-background-clip:text;background-clip:text;color:transparent}
.type-wrap{font-size:clamp(16px,2vw,20px);color:#fff;min-height:34px;margin-bottom:22px;font-weight:500;text-shadow:0 1px 12px rgba(14,74,140,.3)}
.type-wrap .cursor{display:inline-block;width:2px;height:1.1em;background:#fff;vertical-align:-3px;margin-left:2px;animation:blink 1s step-end infinite}
@keyframes blink{50%{opacity:0}}
.hero-desc{font-size:15.5px;color:rgba(255,255,255,.92);max-width:560px;margin-bottom:34px;line-height:1.9}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:48px}
.hero-metrics{display:flex;gap:44px;flex-wrap:wrap}
.metric .num{font-size:clamp(26px,3vw,38px);font-weight:800;background:linear-gradient(90deg,#fff,var(--cyan-200));-webkit-background-clip:text;background-clip:text;color:transparent}
.metric .label{font-size:13px;color:rgba(255,255,255,.82);margin-top:2px;letter-spacing:.04em}

/* Hero 右侧 3D 玻璃卡 */
.hero-visual{position:relative;perspective:1200px}
.hero-card{background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.42);border-radius:24px;padding:32px 28px;backdrop-filter:blur(20px);box-shadow:0 30px 80px rgba(14,74,140,.3),inset 0 1px 0 rgba(255,255,255,.2);position:relative;overflow:hidden;transform-style:preserve-3d;transition:transform .3s ease;will-change:transform}
.hero-card::before{content:"";position:absolute;top:-60px;right:-60px;width:200px;height:200px;background:radial-gradient(circle,rgba(255,255,255,.4),transparent 70%);border-radius:50%}
.hero-card h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:20px;display:flex;align-items:center;gap:8px}
.hero-card h3::before{content:"";width:8px;height:8px;border-radius:50%;background:#a7f3d0;box-shadow:0 0 12px #a7f3d0}
.flow-row{display:flex;align-items:center;gap:8px;margin-bottom:11px;font-size:13.5px;color:#fff}
.flow-row .dot{width:26px;height:26px;border-radius:8px;background:rgba(255,255,255,.22);border:1px solid rgba(255,255,255,.5);display:grid;place-items:center;font-size:12px;flex-shrink:0}
.flow-row .bar{flex:1;height:7px;border-radius:4px;background:rgba(255,255,255,.22);overflow:hidden}
.flow-row .bar i{display:block;height:100%;border-radius:4px;background:linear-gradient(90deg,#fff,#a7f3d0);animation:grow 2.2s ease forwards;transform-origin:left;box-shadow:0 0 8px rgba(255,255,255,.5)}
@keyframes grow{from{transform:scaleX(0)}to{transform:scaleX(1)}}
.hero-card .note{font-size:12px;color:rgba(255,255,255,.85);margin-top:16px;padding-top:14px;border-top:1px dashed rgba(255,255,255,.35)}
.chip{position:absolute;background:rgba(255,255,255,.95);border:1px solid rgba(255,255,255,.85);color:var(--sky-800);backdrop-filter:blur(10px);padding:8px 14px;border-radius:12px;font-size:12.5px;font-weight:700;box-shadow:0 12px 34px rgba(14,74,140,.3);animation:chipfloat 5s ease-in-out infinite}
.chip-1{top:-20px;left:-14px}
.chip-2{bottom:36px;right:-18px;animation-delay:1.3s}
@keyframes chipfloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}

/* ================= 数据亮点 ================= */
.stats{padding:64px 0;background:#fff;border-bottom:1px solid var(--border)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}
.stat-item{text-align:center;padding:18px 10px;border-radius:var(--radius);transition:transform .3s ease,box-shadow .3s ease}
.stat-item:hover{transform:translateY(-6px);box-shadow:var(--shadow-md)}
.stat-item .num{font-size:clamp(30px,4vw,46px);font-weight:800;background:linear-gradient(135deg,var(--sky-600),var(--cyan-400));-webkit-background-clip:text;background-clip:text;color:transparent}
.stat-item .label{font-size:14px;color:var(--muted);margin-top:6px;font-weight:500}

/* ================= 产品体系 ================= */
.products{background:linear-gradient(180deg,var(--bg),#e8f1fe);overflow:hidden}
.products .sec-sub{margin-bottom:46px}
.prod-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px;margin-bottom:46px}
.prod-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:34px 30px;position:relative;overflow:hidden;transition:transform .35s ease,box-shadow .35s ease;box-shadow:var(--shadow-sm)}
.prod-card::after{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--sky-600),var(--cyan-400));opacity:0;transition:opacity .3s ease}
.prod-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg)}
.prod-card:hover::after{opacity:1}
.prod-card.featured{grid-column:1/-1;background:linear-gradient(135deg,#1565c0,#2f7cf6);border-color:transparent;color:#fff}
.prod-card.featured .prod-desc{color:rgba(255,255,255,.92)}
.prod-card.featured::after{opacity:1;background:linear-gradient(90deg,var(--cyan-300),var(--teal-400))}
.prod-icon{width:56px;height:56px;border-radius:16px;display:grid;place-items:center;margin-bottom:20px;background:linear-gradient(135deg,rgba(47,124,246,.12),rgba(34,211,238,.22));border:1px solid rgba(47,124,246,.22);transition:transform .4s ease}
.prod-card:hover .prod-icon{transform:scale(1.1) rotate(-6deg)}
.prod-card.featured .prod-icon{background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.32)}
.prod-card h3{font-size:21px;font-weight:700;color:var(--ink);margin-bottom:10px}
.prod-card.featured h3{color:#fff}
.prod-desc{font-size:14.5px;color:var(--muted);margin-bottom:16px}
.prod-tags{display:flex;flex-wrap:wrap;gap:8px}
.prod-tags span{font-size:12.5px;color:var(--sky-600);background:rgba(47,124,246,.08);border:1px solid rgba(47,124,246,.18);padding:4px 12px;border-radius:999px;font-weight:500}
.prod-card.featured .prod-tags span{color:#fff;background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.32)}

/* 核心模块 */
.modules{padding:0 0 80px}
.mod-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}
.mod-item{background:#fff;border:1px solid var(--border);border-radius:14px;padding:20px 14px;text-align:center;transition:all .3s ease;position:relative;overflow:hidden}
.mod-item::before{content:"";position:absolute;top:-30px;right:-30px;width:60px;height:60px;background:radial-gradient(circle,rgba(47,124,246,.15),transparent 70%);border-radius:50%}
.mod-item:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:rgba(47,124,246,.35)}
.mod-ico{font-size:24px;display:block;margin-bottom:8px}
.mod-item span{font-size:13.5px;font-weight:600;color:var(--ink)}

/* ================= 解决方案 ================= */
.solutions{padding:100px 0;background:#fff}
.sol-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:18px;margin-top:46px}
.sol-card{background:linear-gradient(135deg,var(--bg),#fff);border:1px solid var(--border);border-radius:16px;padding:26px 24px;transition:all .35s ease;position:relative;overflow:hidden;cursor:pointer}
.sol-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:linear-gradient(180deg,var(--sky-500),var(--cyan-400));opacity:0;transition:opacity .3s ease}
.sol-card:hover{transform:translateY(-7px);box-shadow:var(--shadow-lg);border-color:rgba(47,124,246,.35)}
.sol-card:hover::before{opacity:1}
.sol-ico{width:46px;height:46px;border-radius:13px;background:linear-gradient(135deg,rgba(47,124,246,.12),rgba(34,211,238,.22));display:grid;place-items:center;margin-bottom:14px}
.sol-card h3{font-size:16.5px;font-weight:700;color:var(--ink);margin-bottom:8px}
.sol-card p{font-size:13px;color:var(--muted);line-height:1.7;margin:0}
.sol-card .sol-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:12px}
.sol-card .sol-tags span{font-size:11.5px;color:var(--sky-600);background:rgba(47,124,246,.07);border:1px solid rgba(47,124,246,.14);padding:2px 10px;border-radius:999px}


/* ================= AI 智能 ================= */
.ai-block{background:linear-gradient(180deg,#fff,var(--bg))}
.ai-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:22px;margin-top:46px}
.ai-card{background:#fff;border:1px solid var(--border);border-radius:18px;padding:28px 26px;transition:transform .35s ease,box-shadow .35s ease,border-color .35s ease;position:relative;overflow:hidden;box-shadow:var(--shadow-sm)}
.ai-card::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--sky-500),var(--cyan-400));opacity:0;transition:opacity .3s ease}
.ai-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);border-color:rgba(47,124,246,.35)}
.ai-card:hover::before{opacity:1}
.ai-ico{width:52px;height:52px;border-radius:14px;background:linear-gradient(135deg,rgba(47,124,246,.1),rgba(34,211,238,.2));border:1px solid rgba(47,124,246,.2);display:grid;place-items:center;margin-bottom:16px;transition:transform .35s ease}
.ai-card:hover .ai-ico{transform:scale(1.08)}
.ai-card h4{font-size:18px;font-weight:700;color:var(--ink);margin-bottom:4px}
.ai-sub{font-size:13px;color:var(--sky-600);font-weight:600;margin-bottom:10px !important;letter-spacing:.04em}
.ai-card p{font-size:13.5px;color:var(--muted);line-height:1.7;margin:0 0 14px}
.ai-features{display:flex;flex-direction:column;gap:5px;padding-top:14px;border-top:1px dashed var(--border)}
.ai-features span{font-size:12.5px;color:var(--text);font-weight:500}
.ai-cta{margin-top:46px;display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;background:linear-gradient(135deg,#1565c0,#2f7cf6);color:#fff;border-radius:18px;padding:24px 32px;box-shadow:var(--shadow-md)}
.ai-cta span{font-size:15px;font-weight:500}
@media(max-width:560px){.ai-cta{flex-direction:column;text-align:center}.ai-cta .btn{width:100%;justify-content:center}}


/* ================= 系统优势 ================= */
.advantages{background:linear-gradient(180deg,#e8f1fe,var(--bg));padding:96px 0}
.adv-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px;margin-top:46px}
.adv-item{background:#fff;border:1px solid var(--border);border-radius:16px;padding:24px 22px;transition:all .3s ease;position:relative;overflow:hidden}
.adv-item::before{content:"";position:absolute;top:0;left:0;width:36px;height:4px;background:linear-gradient(90deg,var(--sky-500),var(--cyan-400));border-radius:0 4px 4px 0}
.adv-item:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:rgba(47,124,246,.3)}
.adv-ico{width:44px;height:44px;border-radius:12px;background:linear-gradient(135deg,rgba(47,124,246,.12),rgba(34,211,238,.22));display:grid;place-items:center;margin-bottom:14px}
.adv-item h4{font-size:16px;font-weight:700;color:var(--ink);margin-bottom:6px}
.adv-item p{font-size:13px;color:var(--muted);line-height:1.65;margin:0}

/* ================= 9 大业务环节 ================= */
.workflow{padding:100px 0;background:#fff}
.flow-steps{display:grid;grid-template-columns:repeat(9,1fr);gap:14px;margin-top:46px}
.flow-step{position:relative;text-align:center}
.flow-step .dot{width:54px;height:54px;border-radius:50%;background:linear-gradient(135deg,var(--sky-500),var(--cyan-400));color:#fff;display:grid;place-items:center;font-weight:800;font-size:18px;margin:0 auto 14px;box-shadow:0 8px 22px rgba(47,124,246,.4);transition:transform .3s ease}
.flow-step:hover .dot{transform:scale(1.12)}
.flow-step h4{font-size:14px;font-weight:700;color:var(--ink);margin-bottom:4px}
.flow-step p{font-size:12px;color:var(--muted);line-height:1.5}
@media(max-width:1024px){.flow-steps{grid-template-columns:repeat(3,1fr);gap:18px}.flow-step .dot{width:48px;height:48px;font-size:16px}}
@media(max-width:560px){.flow-steps{grid-template-columns:repeat(2,1fr)}}

/* ================= 应用领域 ================= */
.domains{background:linear-gradient(180deg,var(--bg),#e8f1fe);padding:100px 0}
.domain-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:14px;margin-top:46px}
.domain-item{background:#fff;border:1px solid var(--border);border-radius:14px;padding:18px 12px;text-align:center;transition:all .3s ease;cursor:default}
.domain-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(47,124,246,.4)}
.domain-ico{font-size:26px;margin-bottom:6px;display:block}
.domain-item span{font-size:13.5px;font-weight:600;color:var(--ink)}

/* ================= 案例 ================= */
.cases{background:#fff;padding:100px 0;position:relative;overflow:hidden}
.case-filter{display:flex;flex-wrap:wrap;gap:10px;margin:32px 0 40px;justify-content:center}
.case-filter button{background:#fff;border:1px solid rgba(47,124,246,.22);color:var(--text);padding:8px 18px;border-radius:999px;font-size:14px;cursor:pointer;transition:all .25s ease;font-family:inherit;box-shadow:var(--shadow-sm)}
.case-filter button:hover{background:rgba(47,124,246,.08);color:var(--sky-600)}
.case-filter button.active{background:linear-gradient(135deg,var(--sky-500),var(--cyan-400));color:#fff;border-color:transparent;box-shadow:0 6px 20px rgba(47,124,246,.4)}
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.case-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:28px 24px;transition:transform .35s ease,box-shadow .35s ease,border-color .35s ease;cursor:pointer;display:flex;flex-direction:column;box-shadow:var(--shadow-sm);position:relative;overflow:hidden}
.case-card::after{content:"";position:absolute;right:-30px;top:-30px;width:90px;height:90px;background:radial-gradient(circle,rgba(47,124,246,.1),transparent 70%);border-radius:50%;opacity:0;transition:opacity .3s ease}
.case-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);border-color:rgba(47,124,246,.4)}
.case-card:hover::after{opacity:1}
.case-badge{align-self:flex-start;font-size:11.5px;font-weight:600;letter-spacing:.06em;padding:4px 12px;border-radius:999px;margin-bottom:16px;background:rgba(47,124,246,.08);color:var(--sky-800);border:1px solid rgba(47,124,246,.2)}
.case-card h3{font-size:17.5px;font-weight:700;color:var(--ink);margin-bottom:10px;line-height:1.4}
.case-card .sys{font-size:13px;color:var(--sky-600);margin-bottom:12px;font-weight:500}
.case-card p{font-size:13.5px;color:var(--muted);line-height:1.75;flex:1}
.case-foot{margin-top:18px;padding-top:14px;border-top:1px dashed var(--border);font-size:12.5px;color:#8aa3c2}

/* ================= 选择宏泰 ================= */
.reasons{padding:100px 0;background:linear-gradient(180deg,#e8f1fe,var(--bg))}
.reason-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px;margin-top:46px}
.reason-card{background:#fff;border:1px solid var(--border);border-radius:16px;padding:24px 22px;display:flex;gap:16px;transition:all .3s ease}
.reason-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(47,124,246,.32)}
.reason-num{flex-shrink:0;width:42px;height:42px;border-radius:12px;background:linear-gradient(135deg,var(--sky-500),var(--cyan-400));color:#fff;display:grid;place-items:center;font-weight:800;font-size:18px;box-shadow:0 6px 16px rgba(47,124,246,.35)}
.reason-card h4{font-size:15.5px;font-weight:700;color:var(--ink);margin-bottom:6px;line-height:1.4}
.reason-card p{font-size:13.5px;color:var(--muted);line-height:1.7;margin:0}

/* ================= 售后 ================= */
.service{background:#fff;padding:96px 0}
.service-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px;margin-top:46px}
.svc-card{background:linear-gradient(135deg,var(--bg),#fff);border:1px solid var(--border);border-radius:16px;padding:26px 24px;transition:all .3s ease;position:relative;overflow:hidden}
.svc-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:linear-gradient(180deg,var(--sky-500),var(--cyan-400));opacity:0;transition:opacity .3s ease}
.svc-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:rgba(47,124,246,.3)}
.svc-card:hover::before{opacity:1}
.svc-ico{width:46px;height:46px;border-radius:13px;background:linear-gradient(135deg,var(--sky-500),var(--cyan-400));display:grid;place-items:center;margin-bottom:14px;box-shadow:0 6px 16px rgba(47,124,246,.35)}
.svc-card h4{font-size:16px;font-weight:700;color:var(--ink);margin-bottom:8px}
.svc-card p{font-size:13.5px;color:var(--muted);line-height:1.7;margin:0}

/* ================= 关于 ================= */
.about{padding:100px 0;background:linear-gradient(180deg,var(--bg),#fff)}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.about-visual{border-radius:22px;background:linear-gradient(150deg,#1565c0,#2f7cf6 55%,#22a7f0);padding:44px 34px;color:#fff;box-shadow:var(--shadow-lg);position:relative;overflow:hidden;min-height:380px;display:flex;flex-direction:column;justify-content:center}
.about-visual::before{content:"";position:absolute;top:-80px;right:-80px;width:260px;height:260px;background:radial-gradient(circle,rgba(165,243,252,.45),transparent 70%)}
.about-visual::after{content:"";position:absolute;bottom:-100px;left:-60px;width:240px;height:240px;background:radial-gradient(circle,rgba(167,243,208,.35),transparent 70%)}
.about-visual h3{font-size:22px;font-weight:700;margin-bottom:16px;position:relative;z-index:1}
.about-visual p{font-size:14px;color:rgba(255,255,255,.92);position:relative;z-index:1;line-height:1.9}
.about-visual .quote{margin-top:20px;font-size:14.5px;color:#e0f2fe;font-style:italic;position:relative;z-index:1}
.about-visual .quote::before{content:"\201C";font-size:32px;line-height:0;vertical-align:-12px;margin-right:4px}
.about-visual .quote::after{content:"\201D";font-size:32px;line-height:0;vertical-align:-12px;margin-left:4px}
.about-txt h2{font-size:clamp(24px,3.4vw,34px);font-weight:800;color:var(--ink);line-height:1.3;margin-bottom:18px}
.about-txt p{color:var(--muted);margin-bottom:16px;font-size:15px}
.about-points{margin-top:26px;display:grid;gap:14px}
.about-point{display:flex;gap:14px;align-items:flex-start;background:#fff;border:1px solid var(--border);border-radius:14px;padding:16px 18px;transition:transform .3s ease,box-shadow .3s ease}
.about-point:hover{transform:translateX(6px);box-shadow:var(--shadow-md)}
.about-point .pt-ico{width:38px;height:38px;border-radius:10px;background:linear-gradient(135deg,rgba(47,124,246,.12),rgba(34,211,238,.22));display:grid;place-items:center;flex-shrink:0}
.about-point h4{font-size:15px;font-weight:700;color:var(--ink);margin-bottom:3px}
.about-point p{font-size:13.5px;color:var(--muted);margin:0}
.about-meta{margin-top:26px;display:grid;gap:10px;background:#fff;border:1px solid var(--border);border-radius:14px;padding:18px 22px}
.about-meta-row{display:flex;gap:10px;align-items:center;font-size:13.5px;color:var(--text);flex-wrap:wrap}
.about-meta-row .lbl{font-weight:600;color:var(--ink);min-width:60px}
.about-meta-row a{color:var(--sky-600)}

/* ================= 联系 ================= */
.contact{padding:100px 0;background:linear-gradient(180deg,#fff,var(--bg));position:relative;overflow:hidden}
.contact::before{content:"";position:absolute;top:-120px;left:50%;transform:translateX(-50%);width:640px;height:640px;background:radial-gradient(circle,rgba(47,124,246,.1),transparent 70%);border-radius:50%}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;position:relative;z-index:1}
.contact-info h2{font-size:clamp(24px,3.4vw,34px);font-weight:800;color:var(--ink);margin-bottom:16px}
.contact-info>p{color:var(--muted);margin-bottom:32px}
.contact-items{display:grid;gap:16px}
.contact-item{display:flex;gap:16px;align-items:flex-start;background:#fff;border:1px solid var(--border);border-radius:16px;padding:20px 22px;transition:transform .3s ease,box-shadow .3s ease}
.contact-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.contact-item .ci-ico{width:46px;height:46px;border-radius:13px;background:linear-gradient(135deg,var(--sky-500),var(--cyan-400));display:grid;place-items:center;flex-shrink:0;box-shadow:0 6px 16px rgba(47,124,246,.35)}
.contact-item h4{font-size:15px;font-weight:700;color:var(--ink)}
.contact-item p{font-size:14px;color:var(--muted);margin-top:2px}
.contact-item a{color:var(--sky-600);font-weight:500}
.contact-card{background:linear-gradient(150deg,#1565c0,#2f7cf6 60%,#22a7f0);border-radius:22px;padding:40px 34px;color:#fff;box-shadow:var(--shadow-lg);position:relative;overflow:hidden}
.contact-card::before{content:"";position:absolute;top:-70px;right:-70px;width:220px;height:220px;background:radial-gradient(circle,rgba(165,243,252,.45),transparent 70%)}
.contact-card h3{font-size:22px;font-weight:700;margin-bottom:10px;position:relative;z-index:1}
.contact-card p{font-size:14px;color:rgba(255,255,255,.92);margin-bottom:26px;position:relative;z-index:1}
.contact-card .cta-row{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:1}
.contact-card .mini-note{margin-top:22px;font-size:12.5px;color:rgba(255,255,255,.75);position:relative;z-index:1}

/* ================= 页脚（亮蓝） ================= */
.footer{background:linear-gradient(160deg,#0e5aa8,#1565c0 60%,#1e6fd9);color:rgba(255,255,255,.82);padding:64px 0 28px}
.footer-logo{height:52px;width:auto;display:block;background:#fff;padding:6px 14px;border-radius:10px;box-shadow:0 4px 14px rgba(0,0,0,.18);margin-bottom:16px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:44px;margin-bottom:44px}
.footer h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px}
.footer .brand-name{color:#fff;margin-bottom:12px}
.footer .brand-name small{color:rgba(255,255,255,.65)}
.footer-about{font-size:13.5px;line-height:1.9;max-width:340px}
.footer-links{display:grid;gap:10px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.78);transition:color .25s ease,padding-left .25s ease}
.footer-links a:hover{color:#e0f2fe;padding-left:6px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.18);padding-top:24px;display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.6)}
.footer-bottom a{color:rgba(255,255,255,.6);transition:color .25s ease}
.footer-bottom a:hover{color:#e0f2fe}

/* ================= 滚动动画 ================= */
.reveal{opacity:0;transform:translateY(36px);transition:opacity .75s ease,transform .75s ease}
.reveal.visible{opacity:1;transform:translateY(0)}
.reveal.d1{transition-delay:.08s}.reveal.d2{transition-delay:.16s}.reveal.d3{transition-delay:.24s}.reveal.d4{transition-delay:.32s}

.to-top{position:fixed;right:26px;bottom:30px;width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,var(--sky-500),var(--cyan-400));color:#fff;border:none;cursor:pointer;display:grid;place-items:center;box-shadow:0 0 22px rgba(47,124,246,.5);opacity:0;visibility:hidden;transform:translateY(16px);transition:all .35s ease;z-index:900}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{transform:translateY(-4px)}

/* ================= 响应式 ================= */
@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:48px}
  .hero-visual{max-width:520px}
  .case-grid{grid-template-columns:repeat(2,1fr)}
  .mod-grid{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:1100px){
  .hamburger{display:flex}
  .nav-links{position:fixed;top:0;right:0;bottom:0;width:min(78vw,340px);background:rgba(255,255,255,.98);backdrop-filter:blur(20px);flex-direction:column;align-items:flex-start;gap:4px;padding:96px 30px 40px;transform:translateX(100%);transition:transform .4s cubic-bezier(.4,0,.2,1);box-shadow:-20px 0 60px rgba(14,90,168,.18);overflow-y:auto}
  .nav-links.open{transform:translateX(0)}
  .nav-links a{font-size:17px;padding:13px 16px;width:100%;border-radius:12px;color:var(--ink) !important}
  .nav-links a:hover{background:rgba(47,124,246,.1) !important;color:var(--sky-600) !important}
  .nav-cta{margin-top:12px;text-align:center;justify-content:center;color:#fff !important}
}
@media (max-width:820px){
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .prod-grid{grid-template-columns:1fr}
  .about-grid,.contact-grid{grid-template-columns:1fr;gap:40px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .sec-pad{padding:72px 0}
  .hero{padding:110px 0 100px}
}
@media (max-width:560px){
  .case-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:14px}
  .footer-grid{grid-template-columns:1fr}
  .hero-metrics{gap:26px}
  .container{padding:0 18px}
  .chip-1{left:-6px}.chip-2{right:-6px}
  .adv-grid,.reason-grid,.service-grid,.sol-grid{grid-template-columns:1fr}
  .domain-grid{grid-template-columns:repeat(3,1fr)}
  .mod-grid{grid-template-columns:repeat(2,1fr)}
}
@media (prefers-reduced-motion: reduce){
  .glow,.hero-card .bar i,.chip{animation:none !important}
  html{scroll-behavior:auto}
}

/* ===== v11 改版新增：数据墙 icon ===== */
.stat-item{display:flex;flex-direction:column;align-items:center;text-align:center}
.stat-ico{width:52px;height:52px;border-radius:14px;background:linear-gradient(135deg,rgba(47,139,246,.1),rgba(34,211,238,.16));display:grid;place-items:center;margin-bottom:12px;border:1px solid rgba(47,139,246,.18)}
/* ===== v11 新增：方案卡摘要与详情入口 ===== */
.sol-card{display:flex;flex-direction:column}
.sol-desc{font-size:12px;color:#0e7fd6;font-weight:600;margin:-6px 0 10px;letter-spacing:.02em}
.sol-more{display:inline-flex;align-items:center;gap:4px;margin-top:auto;padding-top:12px;font-size:13px;font-weight:600;color:#2f7cf6;text-decoration:none}
.sol-more:hover{color:#0e7fd6}
.sol-more::after{content:"\2192";transition:transform .25s ease}
.sol-card:hover .sol-more::after{transform:translateX(4px)}
/* ===== v11 新增：AI 品牌 ===== */
.ai-badge{display:inline-block;background:linear-gradient(135deg,#2f7cf6,#22d3ee);color:#fff;font-size:11px;font-weight:700;padding:2px 9px;border-radius:6px;margin-right:7px;vertical-align:2px;letter-spacing:.05em}
.ai-brand-tag{display:flex;align-items:center;gap:10px}
/* ===== v11 新增：客户证言 ===== */
.testimonials{background:linear-gradient(180deg,#eaf3ff,#fff)}
.testi-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:48px}
.testi-card{background:#fff;border:1px solid rgba(47,124,246,.14);border-radius:16px;padding:28px 26px;box-shadow:0 8px 30px rgba(31,94,190,.07);transition:transform .3s ease,box-shadow .3s ease;display:flex;flex-direction:column;gap:18px}
.testi-card:hover{transform:translateY(-6px);box-shadow:0 16px 40px rgba(31,94,190,.14)}
.testi-quote{font-size:15px;line-height:1.8;color:#234a75;position:relative;padding-left:22px}
.testi-quote::before{content:"\201C";position:absolute;left:0;top:-6px;font-size:34px;color:#38bdf8;font-family:Georgia,serif}
.testi-who{display:flex;align-items:center;gap:14px;border-top:1px dashed rgba(47,124,246,.18);padding-top:16px}
.testi-avatar{width:46px;height:46px;border-radius:50%;background:linear-gradient(135deg,#2f7cf6,#22d3ee);color:#fff;display:grid;place-items:center;font-size:17px;font-weight:700;flex-shrink:0}
.testi-who h4{font-size:13.5px;margin-bottom:3px;color:#234a75}
.testi-who p{font-size:12px;color:#6b7c93}
.testi-stats{display:flex;align-items:center;justify-content:center;gap:22px;margin-top:40px;flex-wrap:wrap}
.testi-stats span{font-size:14px;font-weight:600;color:#234a75}
.testi-stats i{width:5px;height:5px;border-radius:50%;background:#38bdf8}
/* ===== v11 新增：行业资讯 ===== */
.news{background:#fff}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:48px}
.news-card{background:#f7faff;border:1px solid rgba(47,124,246,.12);border-radius:16px;padding:26px 24px;display:flex;flex-direction:column;gap:12px;transition:transform .3s ease,box-shadow .3s ease}
.news-card:hover{transform:translateY(-5px);box-shadow:0 14px 34px rgba(31,94,190,.12)}
.news-meta{display:flex;justify-content:space-between;align-items:center}
.news-cat{font-size:11.5px;font-weight:700;color:#fff;background:linear-gradient(135deg,#2f7cf6,#38bdf8);padding:4px 12px;border-radius:999px;letter-spacing:.04em}
.news-date{font-size:12px;color:#6b7c93}
.news-card h3{font-size:16px;line-height:1.55;color:#234a75;word-break:keep-all}
.news-card p{font-size:13.5px;color:#6b7c93;line-height:1.75;flex:1}
.news-more{font-size:13px;font-weight:600;color:#2f7cf6;text-decoration:none;display:inline-flex;align-items:center;gap:4px}
.news-more::after{content:"\2192";transition:transform .25s ease}
.news-card:hover .news-more::after{transform:translateX(4px)}
.news-foot{margin-top:36px;text-align:center;color:#6b7c93;font-size:13px}
/* ===== v11 新增：页脚渠道 ===== */
.footer-follow{padding:26px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);border-radius:16px}
.footer-follow h4{color:#fff;margin-bottom:16px;font-size:15px}
.follow-grid{display:flex;flex-direction:column;gap:14px}
.follow-item{display:flex;align-items:center;gap:12px}
.follow-ico{width:40px;height:40px;border-radius:11px;background:rgba(255,255,255,.12);display:grid;place-items:center;flex-shrink:0}
.follow-item h5{color:#fff;font-size:13.5px;margin-bottom:2px}
.follow-item p{color:rgba(255,255,255,.72);font-size:12px}
.follow-tip{margin-top:16px;font-size:11.5px;color:rgba(255,255,255,.6);border-top:1px dashed rgba(255,255,255,.16);padding-top:12px}
/* ===== v11 响应式 ===== */
@media (max-width:1024px){.testi-grid,.news-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:820px){.testi-grid,.news-grid{grid-template-columns:1fr}.footer-follow{margin-top:8px}}
@media (max-width:560px){.testi-stats{gap:12px}.testi-stats span{font-size:12.5px}.testi-stats i{display:none}}