/* ============================================================
   AIERP · AI 进销存 ERP 小程序官网 设计系统
   风格：深海企业级科技数据风 (Deep Ocean Enterprise)
   ============================================================ */

:root{
  --navy-900:#071a33;
  --navy-800:#0a2242;
  --navy-700:#0e2d57;
  --navy-600:#14386b;
  --cyan-500:#00c2a8;
  --cyan-400:#22e0c6;
  --gold-400:#f5b942;
  --gold-500:#e8a41f;
  --ink:#1a2433;
  --text:#3d4a5c;
  --text-light:#7b8798;
  --bg:#f5f8fc;
  --bg-deep:#0a2242;
  --card:#ffffff;
  --border:#e4eaf2;
  --white:#ffffff;
  --grad-prime:linear-gradient(135deg,#0a2242 0%,#0e3a6e 55%,#0a5c88 100%);
  --grad-cta:linear-gradient(90deg,#00c2a8 0%,#22e0c6 100%);
  --grad-gold:linear-gradient(135deg,#f5b942 0%,#e8a41f 100%);
  --radius:18px;
  --radius-sm:10px;
  --shadow-sm:0 2px 10px rgba(10,34,66,.06);
  --shadow-md:0 12px 32px rgba(10,34,66,.10);
  --shadow-lg:0 24px 60px rgba(10,34,66,.16);
  --font-sans:"Segoe UI","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font-sans);color:var(--text);background:var(--bg);line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{text-decoration:none;color:inherit;transition:.25s}
img{max-width:100%;display:block}
ul{list-style:none}
h1,h2,h3,h4{color:var(--ink);line-height:1.25;font-weight:800}
h1{font-size:clamp(2.1rem,4.2vw,3.6rem);letter-spacing:-.5px}
h2{font-size:clamp(1.7rem,3vw,2.6rem)}
h3{font-size:1.3rem}
p{color:var(--text)}
section{position:relative}
.container{width:min(1200px,92%);margin:0 auto}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;gap:9px;padding:13px 26px;border-radius:50px;font-weight:700;font-size:1rem;cursor:pointer;border:0;transition:.28s;white-space:nowrap}
.btn-cta{background:var(--grad-cta);color:#04282a;box-shadow:0 8px 24px rgba(0,194,168,.35)}
.btn-cta:hover{transform:translateY(-3px);box-shadow:0 12px 30px rgba(0,194,168,.45)}
.btn-ghost{background:rgba(255,255,255,.08);color:#fff;border:1.5px solid rgba(255,255,255,.35);backdrop-filter:blur(6px)}
.btn-ghost:hover{background:rgba(255,255,255,.18);border-color:#fff}
.btn-solid{background:var(--grad-prime);color:#fff;box-shadow:0 8px 24px rgba(10,34,66,.28)}
.btn-solid:hover{transform:translateY(-3px);box-shadow:0 12px 32px rgba(10,34,66,.38)}
.btn-line{background:transparent;color:var(--navy-700);border:1.8px solid var(--navy-700)}
.btn-line:hover{background:var(--navy-700);color:#fff}

/* ---------- 顶部导航 ---------- */
.site-nav{position:fixed;top:0;left:0;width:100%;z-index:1000;padding:16px 0;transition:.35s;background:transparent}
.site-nav.scrolled{background:rgba(7,26,51,.94);backdrop-filter:blur(14px);padding:11px 0;box-shadow:0 4px 24px rgba(0,0,0,.2)}
.nav-inner{display:flex;align-items:center;justify-content:space-between}
.nav-logo{display:flex;align-items:center;gap:10px;color:#fff}
.nav-logo img{height:42px;width:auto;border-radius:8px}
.logo-txt{display:flex;flex-direction:column;line-height:1.1}
.logo-txt strong{font-size:1.18rem;letter-spacing:.5px}
.logo-txt span{font-size:.68rem;color:var(--cyan-400);letter-spacing:2px;text-transform:uppercase}
.nav-links{display:flex;align-items:center;gap:32px}
.nav-links a{color:rgba(255,255,255,.85);font-weight:600;font-size:.98rem;position:relative}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:2.5px;background:var(--grad-cta);border-radius:2px;transition:.3s}
.nav-links a:hover,.nav-links a.active{color:#fff}
.nav-links a:hover::after,.nav-links a.active::after{width:100%}
.nav-cta{display:flex;align-items:center;gap:14px}
.nav-toggle{display:none;background:none;border:0;color:#fff;font-size:1.6rem;cursor:pointer}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;background:var(--grad-prime);overflow:hidden;color:#fff;padding-top:90px;padding-bottom:70px}
.hero-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:52px 52px;mask-image:radial-gradient(ellipse at center,black 35%,transparent 78%)}
.hero-glow{position:absolute;width:620px;height:620px;border-radius:50%;filter:blur(120px);opacity:.5}
.glow-a{background:#00c2a8;top:-120px;right:-80px}
.glow-b{background:#f5b942;bottom:-140px;left:-100px}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr 1fr;gap:48px;align-items:center}
.hero-badge{display:inline-flex;align-items:center;gap:9px;padding:8px 18px;border-radius:50px;background:rgba(0,194,168,.16);border:1px solid rgba(0,194,168,.4);color:var(--cyan-400);font-weight:700;font-size:.86rem;margin-bottom:24px;letter-spacing:.5px}
.hero h1{color:#fff;margin-bottom:20px}
.hero h1 .accent{background:linear-gradient(90deg,var(--cyan-400),#8cf5e4);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero .sub{font-size:1.15rem;color:rgba(255,255,255,.82);max-width:540px;margin-bottom:32px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:34px}
.hero-metrics{display:flex;gap:38px;flex-wrap:wrap}
.metric .num{font-size:1.9rem;font-weight:800;color:#fff;line-height:1}
.metric .num em{font-style:normal;color:var(--cyan-400)}
.metric .lab{font-size:.82rem;color:rgba(255,255,255,.6);margin-top:4px}

/* hero 数据驾驶舱 */
.dash{position:relative}
.dash-window{background:linear-gradient(160deg,rgba(255,255,255,.10),rgba(255,255,255,.03));border:1px solid rgba(255,255,255,.16);border-radius:var(--radius);backdrop-filter:blur(10px);box-shadow:var(--shadow-lg);overflow:hidden}
.dash-bar{display:flex;align-items:center;gap:8px;padding:13px 16px;border-bottom:1px solid rgba(255,255,255,.12)}
.dash-bar i{width:11px;height:11px;border-radius:50%}
.dash-bar .t{color:rgba(255,255,255,.7);font-size:.8rem;margin-left:8px;letter-spacing:1px}
.dash-body{padding:20px;display:grid;grid-template-columns:1fr 1fr;gap:14px}
.kpi{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius-sm);padding:16px}
.kpi .l{font-size:.76rem;color:rgba(255,255,255,.62)}
.kpi .v{font-size:1.6rem;font-weight:800;color:#fff;margin:4px 0 2px}
.kpi .d{font-size:.78rem;color:var(--cyan-400);font-weight:600}
.kpi .d.down{color:#ff9d9d}
.dash-chart{grid-column:1/-1;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius-sm);padding:14px}
.bars{display:flex;align-items:flex-end;gap:8px;height:110px;margin-top:10px}
.bars span{flex:1;background:linear-gradient(180deg,var(--cyan-400),#0a5c88);border-radius:5px 5px 0 0;opacity:.85}
.dash-float{position:absolute;background:rgba(255,255,255,.95);color:var(--navy-800);border-radius:14px;box-shadow:var(--shadow-lg);padding:14px 18px;display:flex;align-items:center;gap:12px;font-weight:700;font-size:.9rem;animation:float 5s ease-in-out infinite}
.dash-float i{color:var(--cyan-500);font-size:1.4rem}
.float-1{top:-22px;left:-30px}
.float-2{bottom:34px;right:-28px;animation-delay:2.5s}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}

.scroll-down{position:absolute;bottom:22px;left:50%;transform:translateX(-50%);color:rgba(255,255,255,.6);font-size:1.3rem;animation:bounce 2s infinite}
@keyframes bounce{0%,100%{transform:translate(-50%,0)}50%{transform:translate(-50%,10px)}}

/* ---------- 通用区块 ---------- */
.sec{padding:96px 0}
.sec-head{text-align:center;max-width:720px;margin:0 auto 56px}
.sec-eyebrow{display:inline-block;color:var(--cyan-500);font-weight:800;letter-spacing:3px;text-transform:uppercase;font-size:.82rem;margin-bottom:14px}
.sec-head h2{margin-bottom:16px}
.sec-head p{color:var(--text-light);font-size:1.05rem}

/* ---------- 信任条 ---------- */
.trust{background:var(--white);border-bottom:1px solid var(--border)}
.trust-inner{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:22px;padding:22px 0}
.trust-t{font-weight:700;color:var(--text-light);font-size:.9rem;letter-spacing:1px}
.trust-badges{display:flex;gap:30px;flex-wrap:wrap;align-items:center}
.trust-badges span{display:flex;align-items:center;gap:8px;color:var(--navy-700);font-weight:700;font-size:.95rem}
.trust-badges i{color:var(--gold-500)}

/* ---------- 产品作用 (核心能力) ---------- */
.core{background:var(--bg)}
.core-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.core-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:30px;transition:.32s;position:relative;overflow:hidden}
.core-card::before{content:"";position:absolute;top:0;left:0;width:100%;height:4px;background:var(--grad-cta);transform:scaleX(0);transform-origin:left;transition:.35s}
.core-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-md);border-color:rgba(0,194,168,.4)}
.core-card:hover::before{transform:scaleX(1)}
.core-ico{width:60px;height:60px;border-radius:16px;background:linear-gradient(135deg,rgba(0,194,168,.14),rgba(10,34,66,.06));display:flex;align-items:center;justify-content:center;margin-bottom:20px}
.core-ico i{font-size:1.7rem;color:var(--cyan-500)}
.core-card h3{margin-bottom:10px}
.core-card p{color:var(--text-light);font-size:.95rem}
.core-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}
.core-tags span{font-size:.74rem;padding:4px 11px;border-radius:20px;background:rgba(10,34,66,.05);color:var(--navy-700);font-weight:600}

/* ---------- 数据驾驶舱区 (深色) ---------- */
.insight{background:var(--bg-deep);color:#fff;overflow:hidden}
.insight::before{content:"";position:absolute;width:500px;height:500px;background:radial-gradient(circle,rgba(0,194,168,.22),transparent 70%);top:-120px;left:-120px;filter:blur(40px)}
.insight::after{content:"";position:absolute;width:500px;height:500px;background:radial-gradient(circle,rgba(245,185,66,.16),transparent 70%);bottom:-140px;right:-120px;filter:blur(40px)}
.insight .container{position:relative;z-index:2}
.insight .sec-eyebrow{color:var(--cyan-400)}
.insight h2{color:#fff}
.insight .sec-head p{color:rgba(255,255,255,.65)}
.insight-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-bottom:46px}
.stat-box{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);padding:26px;text-align:center;backdrop-filter:blur(8px)}
.stat-box .big{font-size:2.3rem;font-weight:800;background:linear-gradient(90deg,var(--cyan-400),#8cf5e4);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.stat-box .cap{color:rgba(255,255,255,.7);font-size:.9rem;margin-top:6px}
.insight-rows{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.ins-row{display:flex;align-items:center;gap:16px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius-sm);padding:18px}
.ins-row i{color:var(--gold-400);font-size:1.3rem}
.ins-row .tx{font-weight:700;font-size:.96rem}
.ins-row .tx small{display:block;color:rgba(255,255,255,.55);font-weight:400;font-size:.82rem;margin-top:2px}

/* ---------- 特性 ---------- */
.feat{background:var(--bg)}
.feat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.feat-item{display:flex;gap:20px;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:28px;transition:.3s}
.feat-item:hover{box-shadow:var(--shadow-md);transform:translateY(-4px)}
.feat-ico{flex-shrink:0;width:54px;height:54px;border-radius:14px;background:var(--grad-prime);display:flex;align-items:center;justify-content:center}
.feat-ico i{color:#fff;font-size:1.5rem}
.feat-item h3{margin-bottom:8px}
.feat-item p{color:var(--text-light);font-size:.93rem}

/* ---------- 应用场景 ---------- */
.scene{background:var(--white)}
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.scene-card{border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:.3s;background:#fff}
.scene-card:hover{box-shadow:var(--shadow-md);transform:translateY(-6px)}
.scene-head{padding:28px 28px 6px}
.scene-head .ico{width:56px;height:56px;border-radius:16px;background:linear-gradient(135deg,rgba(245,185,66,.16),rgba(0,194,168,.12));display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.scene-head .ico i{font-size:1.6rem;color:var(--gold-500)}
.scene-card h3{margin-bottom:6px}
.scene-tag{font-size:.76rem;color:var(--cyan-500);font-weight:800;letter-spacing:1px}
.scene-body{padding:6px 28px 28px}
.scene-body p{color:var(--text-light);font-size:.93rem;margin-bottom:14px}
.scene-body ul li{display:flex;align-items:center;gap:9px;padding:7px 0;color:var(--text);font-size:.9rem;font-weight:500}
.scene-body ul li i{color:var(--cyan-500);font-size:.8rem}

/* ---------- 流程 ---------- */
.steps{background:var(--bg)}
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:step}
.step-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:30px 24px;text-align:center;position:relative}
.step-num{position:absolute;top:18px;right:22px;font-size:3rem;font-weight:900;color:rgba(10,34,66,.07)}
.step-card .ico{width:60px;height:60px;border-radius:50%;margin:0 auto 18px;background:var(--grad-cta);display:flex;align-items:center;justify-content:center}
.step-card .ico i{color:#04282a;font-size:1.5rem}
.step-card h3{margin-bottom:8px}
.step-card p{color:var(--text-light);font-size:.88rem}

/* ---------- 定价 ---------- */
.pricing{background:var(--bg)}
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;align-items:stretch}
.price-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:34px;display:flex;flex-direction:column;position:relative;transition:.3s}
.price-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md)}
.price-card.popular{border:2px solid var(--cyan-500);box-shadow:var(--shadow-md)}
.price-flag{position:absolute;top:-15px;left:50%;transform:translateX(-50%);background:var(--grad-cta);color:#04282a;font-size:.76rem;font-weight:800;padding:6px 18px;border-radius:50px;letter-spacing:.5px}
.price-name{font-size:1.05rem;font-weight:800;color:var(--navy-700);margin-bottom:8px}
.price-note{color:var(--text-light);font-size:.84rem;margin-bottom:20px}
.price-amount{display:flex;align-items:baseline;gap:6px;margin-bottom:6px}
.price-amount .cur{font-size:1.2rem;font-weight:700;color:var(--text)}
.price-amount .val{font-size:2.6rem;font-weight:900;color:var(--ink)}
.price-amount .per{color:var(--text-light);font-size:.9rem}
.price-year{color:var(--cyan-500);font-weight:600;font-size:.88rem;margin-bottom:22px}
.price-feats{flex:1;margin-bottom:26px}
.price-feats li{display:flex;align-items:flex-start;gap:10px;padding:8px 0;font-size:.92rem;color:var(--text)}
.price-feats li i{color:var(--cyan-500);margin-top:3px;font-size:.85rem}
.price-feats li.off{color:var(--text-light)}
.price-feats li.off i{color:#c3ccd8}
.price-card .btn{width:100%;justify-content:center}
.price-note-sm{font-size:.78rem;color:var(--text-light);text-align:center;margin-top:14px}

/* ---------- 客户评价 ---------- */
.testi{background:var(--white)}
.testi-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.testi-card{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);padding:28px}
.testi-stars{color:var(--gold-500);margin-bottom:16px;letter-spacing:3px}
.testi-card p{color:var(--text);font-size:.95rem;margin-bottom:20px;font-style:italic}
.testi-user{display:flex;align-items:center;gap:13px}
.testi-user .avatar{width:46px;height:46px;border-radius:50%;background:var(--grad-prime);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800}
.testi-user .n{font-weight:700;color:var(--ink);font-size:.92rem}
.testi-user .r{color:var(--text-light);font-size:.8rem}

/* ---------- CTA ---------- */
.cta-band{background:var(--grad-prime);color:#fff;text-align:center;padding:80px 0;position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;width:420px;height:420px;background:radial-gradient(circle,rgba(0,194,168,.25),transparent 70%);top:-160px;left:-100px}
.cta-band::after{content:"";position:absolute;width:420px;height:420px;background:radial-gradient(circle,rgba(245,185,66,.18),transparent 70%);bottom:-160px;right:-100px}
.cta-band .container{position:relative;z-index:2}
.cta-band h2{color:#fff;margin-bottom:16px}
.cta-band p{color:rgba(255,255,255,.75);max-width:600px;margin:0 auto 32px}
.cta-actions{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--navy-900);color:#fff;padding:70px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:50px}
.footer-brand img{height:44px;border-radius:8px;margin-bottom:18px}
.footer-brand p{color:rgba(255,255,255,.6);font-size:.92rem;max-width:300px}
.footer-social{display:flex;gap:12px;margin-top:20px}
.footer-social a{width:42px;height:42px;border-radius:50%;background:rgba(255,255,255,.08);display:flex;align-items:center;justify-content:center;color:#fff}
.footer-social a:hover{background:var(--cyan-500);color:#04282a}
.footer-col h4{color:#fff;font-size:1rem;margin-bottom:20px}
.footer-col a{display:block;color:rgba(255,255,255,.6);padding:7px 0;font-size:.9rem}
.footer-col a:hover{color:var(--cyan-400);transform:translateX(4px)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:22px 0;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px}
.footer-bottom p{color:rgba(255,255,255,.5);font-size:.85rem}
.footer-bottom a{color:var(--cyan-400);font-size:.85rem}

/* ---------- 内页 Hero ---------- */
.page-hero{background:var(--grad-prime);color:#fff;padding:150px 0 80px;position:relative;overflow:hidden}
.page-hero::after{content:"";position:absolute;width:500px;height:500px;background:radial-gradient(circle,rgba(0,194,168,.22),transparent 70%);bottom:-160px;right:-80px}
.page-hero .container{position:relative;z-index:2}
.page-hero h1{color:#fff;margin-bottom:14px}
.page-hero p{color:rgba(255,255,255,.75);max-width:640px;font-size:1.08rem}
.page-hero .crumb{display:flex;align-items:center;gap:10px;margin-bottom:20px;color:rgba(255,255,255,.65);font-size:.86rem}
.page-hero .crumb a:hover{color:var(--cyan-400)}

/* ---------- 应用场景详情 (solutions) ---------- */
.sol-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:30px}
.sol-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:32px;transition:.3s;border-top:4px solid var(--cyan-500)}
.sol-card:nth-child(even){border-top-color:var(--gold-500)}
.sol-card:hover{box-shadow:var(--shadow-md);transform:translateY(-4px)}
.sol-head{display:flex;align-items:center;gap:18px;margin-bottom:18px}
.sol-head .ico{width:58px;height:58px;border-radius:16px;background:var(--grad-prime);display:flex;align-items:center;justify-content:center}
.sol-head .ico i{color:#fff;font-size:1.6rem}
.sol-head h3{margin:0}
.sol-card p{color:var(--text-light);font-size:.94rem;margin-bottom:16px}
.sol-list{display:grid;grid-template-columns:1fr 1fr;gap:8px 18px}
.sol-list li{display:flex;align-items:center;gap:8px;font-size:.88rem;font-weight:500}
.sol-list li i{color:var(--cyan-500);font-size:.8rem}

/* ---------- 特性详情页 ---------- */
.fdetail{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:34px;margin-bottom:20px}
.fdetail-top{display:flex;align-items:flex-start;gap:20px;margin-bottom:18px}
.fdetail-top .ico{width:58px;height:58px;border-radius:16px;background:linear-gradient(135deg,rgba(0,194,168,.16),rgba(10,34,66,.06));display:flex;align-items:center;justify-content:center}
.fdetail-top .ico i{font-size:1.6rem;color:var(--cyan-500)}
.fdetail-top h3{margin-bottom:4px}
.fdetail-top .desc{color:var(--text-light);font-size:.92rem}
.fdetail ul{display:grid;grid-template-columns:repeat(2,1fr);gap:10px 24px}
.fdetail ul li{display:flex;align-items:flex-start;gap:9px;font-size:.9rem;color:var(--text)}
.fdetail ul li i{color:var(--cyan-500);margin-top:4px;font-size:.82rem}

/* ---------- FAQ ---------- */
.faq{background:var(--bg)}
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-sm);margin-bottom:14px;overflow:hidden}
.faq-q{display:flex;justify-content:space-between;align-items:center;padding:20px 24px;cursor:pointer;font-weight:700;color:var(--ink)}
.faq-q i{transition:.3s;color:var(--cyan-500)}
.faq-item.open .faq-q i{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:.35s}
.faq-a p{padding:0 24px 22px;color:var(--text-light);font-size:.93rem}

/* ---------- 联系我们 ---------- */
.contact{background:var(--bg-deep);color:#fff}
.contact .sec-eyebrow{color:var(--cyan-400)}
.contact h2{color:#fff}
.contact .sec-head p{color:rgba(255,255,255,.65)}
.contact-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.contact-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);padding:30px;text-align:center}
.contact-card .ico{width:56px;height:56px;border-radius:50%;margin:0 auto 16px;background:rgba(0,194,168,.15);display:flex;align-items:center;justify-content:center}
.contact-card .ico i{color:var(--cyan-400);font-size:1.4rem}
.contact-card h4{color:#fff;font-size:1rem;margin-bottom:6px}
.contact-card p{color:rgba(255,255,255,.7);font-size:.9rem}
.contact-card a{color:var(--cyan-400)}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(30px);transition:.8s cubic-bezier(.2,.8,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media(max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:52px}
  .dash{max-width:520px;margin:0 auto}
  .core-grid,.scene-grid,.testi-grid{grid-template-columns:1fr 1fr}
  .price-grid,.insight-stats{grid-template-columns:repeat(2,1fr)}
  .insight-rows,.feat-grid,.sol-grid{grid-template-columns:1fr}
  .steps-grid{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .float-1{left:0}.float-2{right:0}
}
@media(max-width:720px){
  .nav-links,.nav-cta .btn-text{display:none}
  .nav-toggle{display:block}
  .nav-links.open{display:flex;flex-direction:column;position:absolute;top:70px;left:0;right:0;background:var(--navy-900);padding:24px;gap:20px;align-items:flex-start}
  .core-grid,.feat-grid,.scene-grid,.testi-grid,.price-grid{grid-template-columns:1fr}
  .steps-grid{grid-template-columns:1fr}
  .hero-metrics{gap:24px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{justify-content:center}
  .trust-inner{flex-direction:column;align-items:flex-start}
  .footer-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .fdetail ul,.sol-list{grid-template-columns:1fr}
  .sec{padding:64px 0}
}