/* ============================================================
   邦杰AI Cloud · 全站样式
   静态部署：nginx / apache / 任意静态托管
   ============================================================ */
:root{
  --bg:#f4f6f1;
  --bg-card:#ffffff;
  --ink:#17221e;
  --ink2:#22302a;
  --muted:#5f6d66;
  --muted2:#82908a;
  --olive:#9bbb6a;
  --olive-dark:#6f8f4a;
  --orange:#e99b5f;
  --line:#e2e8de;
  --line2:#cdd7c9;
  --dark:#17221e;
  --dark2:#1f2e28;
  --radius:16px;
  --maxw:1140px;
  --shadow:0 1px 2px rgba(23,34,30,.04);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Segoe UI",system-ui,-apple-system,sans-serif;
  background:var(--bg);color:var(--ink);line-height:1.65;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
  display:flex;flex-direction:column;min-height:100vh;
}
a{color:inherit;text-decoration:none}
ul{list-style:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px;width:100%}
main{flex:1}
section{position:relative}

/* ===== 通用元素 ===== */
.eyebrow{font-size:12.5px;letter-spacing:.18em;font-weight:700;color:var(--olive-dark);text-transform:uppercase}
.eyebrow .dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--orange);margin-right:8px;vertical-align:1px}
.sect-head{margin-bottom:42px;max-width:680px}
.sect-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sect-head h2{font-size:clamp(26px,3.4vw,38px);font-weight:800;line-height:1.2;letter-spacing:-.5px;margin:12px 0 14px}
.sect-head p{color:var(--muted);font-size:15px;max-width:600px}
.sect-head.center p{margin-left:auto;margin-right:auto}
.sect-head .eyebrow{margin-bottom:0}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:10px;font-weight:700;font-size:15px;cursor:pointer;
  border:1px solid transparent;transition:.2s;white-space:nowrap;text-decoration:none;font-family:inherit;
}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{background:var(--olive-dark);transform:translateY(-2px);box-shadow:0 10px 26px rgba(111,143,74,.35)}
.btn-orange{background:var(--orange);color:#fff}
.btn-orange:hover{background:#d97f42;transform:translateY(-2px)}
.btn-ghost{background:#fff;border-color:var(--line2);color:var(--ink)}
.btn-ghost:hover{border-color:var(--olive);color:var(--olive-dark)}
.btn-sm{padding:10px 18px;font-size:14px}
.pill{display:inline-flex;align-items:center;gap:7px;padding:6px 13px;border:1px solid var(--line2);border-radius:999px;font-size:13px;color:var(--muted);background:#fff}

/* 内联 SVG 图标 */
svg.ic{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
svg.ic-lg{width:26px;height:26px}

/* ===== 顶部导航 ===== */
header.nav{position:sticky;top:0;z-index:50;background:rgba(244,246,241,.86);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;gap:24px;height:68px}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:18px;letter-spacing:.3px;color:var(--ink)}
.brand .logo{width:34px;height:34px;flex:none}
.brand small{color:var(--muted);font-weight:600;font-size:11.5px;letter-spacing:.1em;margin-top:2px}
.nav-links{display:flex;gap:28px;flex:1;justify-content:center}
.nav-links a{color:var(--muted);font-size:14.5px;font-weight:500;transition:.2s}
.nav-links a:hover{color:var(--ink)}
.nav-links a.active{color:var(--ink);font-weight:700}
.nav-actions{display:flex;gap:10px;align-items:center}
.link-btn{color:var(--muted);font-size:14.5px;padding:8px 2px;font-weight:500}
.link-btn:hover{color:var(--ink)}
.menu-toggle{display:none;background:#fff;border:1px solid var(--line2);border-radius:8px;padding:6px 9px;cursor:pointer;color:var(--ink)}

/* 移动菜单 */
.mobile-menu{position:fixed;inset:0;background:rgba(244,246,241,.98);z-index:60;display:none;flex-direction:column;padding:80px 26px;gap:6px}
.mobile-menu.open{display:flex}
.mobile-menu a{color:var(--ink);font-size:19px;font-weight:700;padding:15px 0;border-bottom:1px solid var(--line)}
.mobile-menu .close{position:absolute;top:18px;right:20px;background:#fff;border:1px solid var(--line2);color:var(--ink);border-radius:8px;padding:8px 10px;cursor:pointer}

/* ===== Hero ===== */
.hero{padding:74px 0 70px;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:
  radial-gradient(700px 340px at 80% -10%,rgba(155,187,106,.16),transparent 60%),
  radial-gradient(520px 300px at -10% 90%,rgba(233,155,95,.12),transparent 55%);
  pointer-events:none}
.hero .wrap{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero-copy .eyebrow{margin-bottom:20px}
.hero-copy h1{font-size:clamp(34px,5.4vw,56px);font-weight:900;line-height:1.14;letter-spacing:-1px}
.hero-copy h1 .accent{color:var(--olive-dark)}
.hero-copy .sub{margin-top:22px;color:var(--muted);font-size:clamp(15px,1.6vw,18px);max-width:540px}
.hero-offer{display:flex;align-items:center;gap:16px;margin-top:26px;flex-wrap:wrap}
.hero-offer .amt b{font-size:26px;font-weight:900;color:var(--orange)}
.hero-models{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}
.hero-models span{font-size:12.5px;padding:5px 11px;border:1px solid var(--line2);border-radius:7px;color:var(--muted2);background:#fff}
.hero-models span b{color:var(--ink);font-weight:600}
.hero-cta{display:flex;gap:12px;margin-top:30px;flex-wrap:wrap}

/* Hero 深色卡片 */
.hero-visual{position:relative}
.hv-card{position:relative;background:var(--dark);color:#eaf0e4;border-radius:22px;padding:30px;overflow:hidden;box-shadow:0 30px 60px rgba(23,34,30,.28)}
.hv-card::before{content:"";position:absolute;inset:0;background:radial-gradient(400px 260px at 20% 0%,rgba(155,187,106,.18),transparent 60%)}
.hv-top{display:flex;align-items:center;justify-content:space-between;position:relative;z-index:2}
.hv-top .k{font-size:11.5px;letter-spacing:.15em;color:var(--olive);font-weight:700}
.hv-top .n{font-size:12px;color:#aab8b0;border:1px solid rgba(255,255,255,.16);border-radius:999px;padding:4px 10px}
.net{position:relative;height:290px;margin-top:6px;z-index:2}
.net svg{width:100%;height:100%}
.net .core{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);text-align:center;z-index:3}
.net .core .ai{font-size:46px;font-weight:900;color:#fff;line-height:1;letter-spacing:1px}
.net .core small{display:block;color:#aab8b0;font-size:11px;letter-spacing:.2em;margin-top:6px}
.hv-foot{margin-top:8px;display:flex;gap:22px;position:relative;z-index:2;border-top:1px solid rgba(255,255,255,.12);padding-top:18px}
.hv-stat{flex:1}
.hv-stat b{font-size:20px;font-weight:800;color:#fff}
.hv-stat b .u{font-size:12px;color:var(--olive);font-weight:700}
.hv-stat span{display:block;font-size:11.5px;color:#aab8b0;margin-top:2px}
.hv-model-tag{position:absolute;background:rgba(31,46,40,.96);border:1px solid rgba(255,255,255,.14);color:#dce7d8;padding:7px 13px;border-radius:9px;font-size:12.5px;z-index:4;box-shadow:0 10px 24px rgba(0,0,0,.35);display:flex;align-items:center;gap:7px}
.hv-model-tag .d{width:7px;height:7px;border-radius:50%;background:var(--olive)}
.m1{top:52px;right:-8px;animation:bob 4s ease-in-out infinite}
.m2{bottom:84px;left:-16px;animation:bob 4.6s ease-in-out infinite .5s}
.m3{bottom:14px;right:20px;animation:bob 5s ease-in-out infinite .2s}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}

/* ===== 数据条 ===== */
.stats{border-block:1px solid var(--line);background:#fff;padding:34px 0}
.stats .wrap{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.stat{text-align:center;position:relative}
.stat+.stat::before{content:"";position:absolute;left:-8px;top:50%;transform:translateY(-50%);width:1px;height:44px;background:var(--line)}
.stat b{font-size:clamp(24px,2.8vw,34px);font-weight:900;display:block;color:var(--ink)}
.stat b .ol{color:var(--olive-dark)}
.stat span{color:var(--muted2);font-size:12.5px;display:block;margin-top:5px}

/* ===== 通用区块留白 ===== */
.pad{padding:76px 0}
.section-white{background:#fff;border-block:1px solid var(--line)}

/* ===== 服务能力 ===== */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.svc-card{border-top:2px solid var(--line2);padding-top:22px}
.svc-card .num{font-size:13px;color:var(--olive-dark);font-weight:800;letter-spacing:.1em}
.svc-card h3{font-size:20px;font-weight:800;margin:12px 0 9px}
.svc-card p{color:var(--muted);font-size:14px}
.svc-card .ic{width:40px;height:40px;border-radius:10px;background:var(--ink);display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.svc-card .ic svg{width:20px;height:20px;stroke:#cde8bb}

/* ===== 产品 ===== */
.tabs{display:flex;gap:8px;margin:0 0 30px;flex-wrap:wrap}
.tab{padding:10px 20px;border-radius:999px;border:1px solid var(--line2);background:#fff;color:var(--muted);font-size:14.5px;font-weight:700;cursor:pointer;transition:.2s;font-family:inherit}
.tab.active{background:var(--ink);color:#fff;border-color:var(--ink)}
.tab:hover:not(.active){border-color:var(--olive);color:var(--olive-dark)}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.pcard{position:relative;background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px;display:flex;flex-direction:column;transition:.22s;box-shadow:var(--shadow)}
.pcard:hover{transform:translateY(-4px);border-color:var(--olive);box-shadow:0 18px 40px rgba(23,34,30,.1)}
.pcard .badge-rec{position:absolute;top:-11px;left:22px;background:var(--orange);color:#fff;font-size:12px;font-weight:800;padding:4px 11px;border-radius:7px}
.pcard .cat{font-size:12px;color:var(--olive-dark);font-weight:700;letter-spacing:.08em}
.pcard h3{font-size:22px;font-weight:800;margin:7px 0 14px}
.specs{display:grid;grid-template-columns:1fr 1fr;gap:9px 12px;margin-bottom:18px}
.specs span{font-size:12.5px;color:var(--muted2)}
.specs span b{color:var(--ink);font-weight:700;display:block;font-size:14px}
.pricing{border-top:1px dashed var(--line2);padding-top:14px}
.price-row{display:flex;justify-content:space-between;align-items:center;font-size:13px;color:var(--muted2);margin-bottom:7px}
.price-row .mode{display:flex;align-items:center;gap:6px;color:var(--muted)}
.price-row .mode i{font-style:normal;color:var(--olive-dark);font-size:11px;border:1px solid rgba(111,143,74,.4);border-radius:4px;padding:1px 5px}
.price-row .orig{text-decoration:line-through;color:var(--muted2)}
.price-row .now{font-size:20px;font-weight:900;color:var(--ink)}
.price-row .now .yen{font-size:13px;color:var(--muted)}
.price-row .now sup{font-size:12px;color:var(--olive-dark);font-weight:700}
.pcard .btn{width:100%;margin-top:16px}
.viewall{text-align:center;margin-top:32px}

/* ===== 优势 ===== */
.why-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px 30px}
.why-item{display:flex;gap:16px;padding:22px 0;border-bottom:1px solid var(--line)}
.why-ic{flex:none;width:40px;height:40px;border-radius:10px;background:#f1f5ec;border:1px solid var(--line);display:flex;align-items:center;justify-content:center}
.why-ic svg{width:19px;height:19px;stroke:var(--olive-dark)}
.why-item h3{font-size:16px;font-weight:800;margin-bottom:4px}
.why-item p{color:var(--muted);font-size:13.5px}

/* ===== 解决方案 ===== */
.sol-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.sol-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:28px;display:flex;flex-direction:column;transition:.2s}
.sol-card:hover{border-color:var(--olive);transform:translateY(-3px)}
.sol-ic{width:48px;height:48px;border-radius:12px;background:var(--ink);display:flex;align-items:center;justify-content:center;margin-bottom:18px}
.sol-ic svg{width:22px;height:22px;stroke:#cde8bb}
.sol-card h3{font-size:19px;font-weight:800;margin-bottom:7px}
.sol-card .desc{color:var(--muted);font-size:13.5px;margin-bottom:16px}
.sol-list li{color:var(--muted);font-size:13.5px;padding-left:20px;position:relative;margin-bottom:8px}
.sol-list li::before{content:"\2713";position:absolute;left:0;color:var(--olive-dark);font-weight:800}
.sol-card .link{color:var(--olive-dark);font-size:14px;font-weight:700;display:inline-flex;align-items:center;gap:6px}
.sol-card .link:hover{color:var(--ink)}

/* ===== 计费 ===== */
.bill-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.bill-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:30px;position:relative;overflow:hidden}
.bill-card.hot{border-color:var(--olive);box-shadow:0 14px 36px rgba(111,143,74,.12)}
.bill-card .tag{position:absolute;top:0;right:0;background:var(--orange);font-size:12px;font-weight:800;padding:5px 14px;border-radius:0 0 0 12px;color:#fff}
.bill-card h3{font-size:19px;font-weight:800;margin-bottom:9px}
.bill-card .sum{color:var(--muted);font-size:14px;margin-bottom:10px}
.bill-card .strong{color:var(--ink2);font-size:14px;margin-bottom:16px}
.bill-list{border-top:1px dashed var(--line2);padding-top:14px}
.bill-list li{color:var(--muted);font-size:13.5px;padding-left:20px;position:relative;margin-bottom:8px}
.bill-list li::before{content:"";position:absolute;left:0;top:7px;width:6px;height:6px;border-radius:50%;background:var(--olive)}

/* ===== CTA ===== */
.cta-panel{background:var(--dark);color:#eaf0e4;border-radius:24px;padding:60px 40px;text-align:center;position:relative;overflow:hidden}
.cta-panel::before{content:"";position:absolute;inset:0;background:
  radial-gradient(600px 300px at 85% 0%,rgba(155,187,106,.22),transparent 55%),
  radial-gradient(480px 280px at 5% 100%,rgba(233,155,95,.16),transparent 55%)}
.cta-panel h2{font-size:clamp(26px,3.6vw,40px);font-weight:900;position:relative;z-index:2}
.cta-panel .gift{position:relative;z-index:2;display:inline-flex;align-items:center;gap:9px;margin:16px 0 26px;padding:8px 16px;border-radius:999px;background:rgba(233,155,95,.14);border:1px solid rgba(233,155,95,.4);color:var(--orange);font-weight:700;font-size:14px}
.cta-panel .gift svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.cta-actions{position:relative;z-index:2;display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.cta-actions .btn-primary{background:#fff;color:var(--ink)}
.cta-actions .btn-primary:hover{background:var(--olive);color:#fff}
.cta-actions .btn-ghost{background:transparent;border-color:rgba(255,255,255,.3);color:#eaf0e4}
.cta-actions .btn-ghost:hover{border-color:var(--olive);color:var(--olive)}
.cta-perks{position:relative;z-index:2;display:flex;gap:34px;justify-content:center;margin-top:36px;flex-wrap:wrap}
.perk b{display:flex;align-items:center;justify-content:center;gap:8px;font-size:16px;font-weight:800;color:#fff}
.perk span{font-size:12.5px;color:#aab8b0}

/* ===== 联系 ===== */
.contact-panel{background:#fff;border:1px solid var(--line);border-radius:22px;padding:36px;display:grid;grid-template-columns:1.5fr 1fr;gap:36px;align-items:start}
.contact h3{font-size:20px;font-weight:800;margin-bottom:16px}
.contact-line{color:var(--muted);font-size:14px;margin-bottom:12px;display:flex;align-items:center;gap:9px}
.contact-line .ok{color:var(--olive-dark);font-weight:800}
.qr-wrap{display:flex;gap:30px;flex-wrap:wrap;justify-content:flex-end}
.qr-item{text-align:center}
.qr-box{width:126px;height:126px;border:1px solid var(--line2);border-radius:12px;background:#fff;display:flex;align-items:center;justify-content:center;margin-bottom:10px}
.qr-box .ph{color:var(--muted2);font-size:12px;text-align:center;line-height:1.5;padding:6px;border:1px dashed var(--line2);border-radius:8px}
.qr-item span{font-size:13px;color:var(--muted)}

/* ===== 页脚 ===== */
footer{border-top:1px solid var(--line);padding:30px 0;color:var(--muted2);font-size:13px;margin-top:auto}
.foot-inner{display:flex;justify-content:space-between;gap:16px;align-items:center;flex-wrap:wrap}
.foot-brand{display:flex;align-items:center;gap:9px;font-weight:700;color:var(--ink)}
.foot-brand .logo{width:22px;height:22px}
.foot-links{display:flex;gap:22px;flex-wrap:wrap}
.foot-links a:hover{color:var(--ink)}

/* ===== 子页面 Hero（页头横幅） ===== */
.page-hero{background:#fff;border-bottom:1px solid var(--line);padding:56px 0 48px;position:relative;overflow:hidden}
.page-hero::before{content:"";position:absolute;inset:0;background:radial-gradient(640px 300px at 85% -20%,rgba(155,187,106,.14),transparent 60%)}
.page-hero .wrap{position:relative}
.page-hero h1{font-size:clamp(30px,4.4vw,46px);font-weight:900;line-height:1.15;letter-spacing:-.5px;margin:12px 0 12px}
.page-hero p{color:var(--muted);font-size:16px;max-width:640px}
.crumbs{font-size:13px;color:var(--muted2)}
.crumbs a{color:var(--olive-dark)}
.crumbs a:hover{color:var(--ink)}

/* ===== Toast ===== */
.toast{position:fixed;left:50%;bottom:30px;transform:translateX(-50%) translateY(20px);background:var(--ink);color:#fff;padding:11px 20px;border-radius:10px;font-size:14px;box-shadow:0 12px 34px rgba(23,34,30,.35);opacity:0;visibility:hidden;transition:.3s;z-index:99}
.toast.show{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}

/* ===== 404 ===== */
.notfound{text-align:center;padding:110px 24px}
.notfound .big{font-size:clamp(80px,16vw,150px);font-weight:900;line-height:1;background:linear-gradient(120deg,var(--olive),var(--orange));-webkit-background-clip:text;background-clip:text;color:transparent}
.notfound h1{font-size:clamp(24px,4vw,34px);font-weight:800;margin:20px 0 12px}
.notfound p{color:var(--muted);margin-bottom:30px}

/* ===== 响应式 ===== */
@media (max-width:960px){
  .nav-links{display:none}
  .menu-toggle{display:flex}
  .hero .wrap{grid-template-columns:1fr;gap:38px}
  .hero-copy{text-align:center}
  .hero-copy .sub{margin-left:auto;margin-right:auto}
  .hero-models,.hero-offer,.hero-cta{justify-content:center}
  .stats .wrap{grid-template-columns:repeat(2,1fr);gap:24px 12px}
  .stat+.stat::before{display:none}
  .svc-grid,.why-grid,.bill-grid,.sol-grid,.cards{grid-template-columns:repeat(2,1fr)}
  .contact-panel{grid-template-columns:1fr}
  .qr-wrap{justify-content:flex-start}
}
@media (max-width:600px){
  .svc-grid,.why-grid,.bill-grid,.sol-grid,.cards{grid-template-columns:1fr}
  .stats .wrap{grid-template-columns:repeat(2,1fr)}
  .nav-actions .link-btn{display:none}
  .cta-perks{flex-direction:column;gap:18px}
  .cta-panel{padding:46px 24px}
}