/* ============ 思智网络IDC · 全新设计系统 (浅色 / 企业级) ============ */
:root{
  /* ============================================================
     思智网络IDC · 设计系统 TOKENS
     组织原则：语义分组 + 单值来源（Single Source of Truth）。
     所有色值沿用既有品牌色，本层只做「结构化」，不改变配色风格。
     ============================================================ */

  /* ---- 品牌主色（科技蓝 / 青，全站视觉锚点） ---- */
  --blue:#2F6BFF;
  --blue-d:#1E5BE6;
  --cyan:#16D0EC;
  --cyan-d:#0AB6DC;
  --brand-grad:linear-gradient(135deg,var(--blue),var(--cyan));
  --brand-grad-soft:linear-gradient(135deg,rgba(47,107,255,.10),rgba(11,200,232,.10));

  /* ---- 文本 / 中性色 ---- */
  --ink:#0B1B33;       /* 标题、强强调 */
  --text:#26344B;      /* 正文 */
  --muted:#5B7AA6;     /* 次要说明 */

  /* ---- 背景 / 表面 ---- */
  --white:#fff;
  --soft:#EFF6FF;      /* 区块浅底 */
  --soft-2:#E6F2FF;    /* 卡片/标签浅底 */

  /* ---- 描边 ---- */
  --line:#DCE9F7;      /* 默认分隔线 */
  --border:#DCE9F7;    /* 组件边框（与 --line 同源） */
  --line-strong:#C3D9F4; /* 悬停/强调描边（原 #cdd9ee，统一为令牌） */

  /* ---- 状态色 ---- */
  --ok:#1FB85A;
  --ok-d:#15924A;
  --warn:#F59E0B;

  /* ---- 暗色（页脚体系） ---- */
  --ink-900:#08182E;   /* 页脚底色 */
  --ink-700:#14283F;   /* 页脚分隔线 */
  --slate-400:#A7BBD9; /* 页脚次要文字 */
  --slate-500:#7E97B9; /* 页脚最弱文字 */

  /* ---- 科技感辅助变量（均由品牌色派生，不改变整体配色风格） ---- */
  --grid-line:rgba(47,107,255,.06);
  --grid-line-cy:rgba(11,200,232,.07);
  --glow-blue:rgba(47,107,255,.34);
  --glow-cyan:rgba(11,200,232,.32);
  --shadow-glow:0 16px 40px -16px var(--glow-blue);

  /* ---- 圆角比例 ---- */
  --r-xs:8px;
  --r-sm:12px;
  --r:16px;
  --r-lg:24px;
  --r-pill:999px;

  /* ---- 阴影 / 层级 ---- */
  --shadow-sm:0 1px 2px rgba(15,23,42,.06),0 2px 8px rgba(15,23,42,.05);
  --shadow:0 6px 24px rgba(15,23,42,.08);
  --shadow-lg:0 18px 48px rgba(47,107,255,.16);

  /* ---- 字体排印比例（clamp 响应式 + 固定档位，1.2× 模块化） ---- */
  --font:"PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,system-ui,sans-serif;
  --fs-display:clamp(30px,4vw,46px); /* Hero 主标题 */
  --fs-h2:clamp(25px,3vw,34px);      /* 区块标题 */
  --fs-h3:18px;                      /* 卡片标题 */
  --fs-h4:15px;                      /* 小标题 */
  --fs-body:15px;                    /* 正文基准 */
  --fs-sm:14px;                      /* 次要正文 */
  --fs-xs:13px;                      /* 标签/注释 */
  --lh-tight:1.18;
  --lh-snug:1.45;
  --lh-base:1.65;
  --fw-bold:700;
  --fw-extra:850;

  /* ---- 间距比例（8px 基准，单一节奏） ---- */
  --sp-1:8px;
  --sp-2:16px;
  --sp-3:24px;
  --sp-4:32px;
  --sp-5:40px;
  --sp-6:56px;
  --sp-section:60px;  /* 区块上下内边距基准 */

  /* ---- 动效（统一缓动 + 时长档位） ---- */
  --ease:cubic-bezier(.4,0,.2,1);
  --ease-out:cubic-bezier(.16,1,.3,1);
  --dur-fast:.16s;
  --dur:.2s;
  --dur-slow:.28s;

  /* ---- 布局 ---- */
  --max:1260px;
  --z-header:50;
  --z-modal:100;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--text);background:radial-gradient(1200px 520px at 50% -10%,rgba(47,107,255,.10),transparent),linear-gradient(180deg,#FFFFFF,#F1F8FF);line-height:1.65;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--max);margin:0 auto;padding:0 22px}
.muted{color:var(--muted)}
.center{text-align:center}
section{position:relative}
.block{padding:60px 0}

/* ---------- Header ---------- */
header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.82);
  backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px;gap:14px;
  max-width:min(1520px,100% - 40px);margin:0 auto}
.brand{display:flex;align-items:center;gap:8px;font-weight:800;font-size:16px;color:var(--ink);letter-spacing:.2px;white-space:nowrap;flex-shrink:0}
.brand .logo{width:32px;height:32px;border-radius:8px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--blue),var(--cyan));color:#fff;font-weight:800;font-size:15px;
  box-shadow:0 4px 12px rgba(47,107,255,.35)}
.brand .accent{color:var(--blue)}
.brand-img{padding:0;background:transparent;box-shadow:none}
.brand-img img{display:block;width:121.3px;height:52px;object-fit:contain}
.menu{display:flex;align-items:center;gap:clamp(2px,1.1vw,18px);flex:1;justify-content:space-evenly;min-width:0;padding:0 6px}
.menu a{position:relative;padding:8px 12px;border-radius:9px;font-weight:600;font-size:14px;color:var(--text);
  transition:color .18s ease,background .18s ease,transform .14s cubic-bezier(.34,1.56,.64,1),box-shadow .18s ease;
  white-space:nowrap;flex-shrink:0;cursor:pointer;overflow:hidden}
.menu a:hover{color:var(--blue);background:linear-gradient(180deg,var(--soft-2),rgba(47,107,255,.06));
  transform:translateY(-1px);box-shadow:0 6px 16px -8px var(--glow-blue)}
.menu a:active{transform:translateY(1px) scale(.94);transition-duration:.06s;box-shadow:0 2px 8px -6px var(--glow-blue)}
.menu a.active{color:var(--blue);background:var(--soft-2)}
/* 科技感流光下划线 */
.menu a::after{content:"";position:absolute;left:50%;bottom:5px;width:0;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--blue),var(--cyan));transform:translateX(-50%);opacity:0;
  transition:width .26s cubic-bezier(.34,1.3,.64,1),opacity .2s ease}
.menu a:hover::after,.menu a.active::after{width:54%;opacity:1}
.nav-cta{display:flex;align-items:center;gap:10px;flex-shrink:0}
.hamburger{display:none;background:none;border:1px solid var(--line);border-radius:9px;width:42px;height:38px;cursor:pointer;font-size:20px;color:var(--ink)}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;padding:11px 20px;border-radius:999px;
  font-weight:700;font-size:15px;cursor:pointer;border:1px solid transparent;transition:.18s;white-space:nowrap}
.btn-primary{background:linear-gradient(135deg,var(--blue),var(--cyan));color:#fff;box-shadow:var(--shadow-lg)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 22px 54px rgba(47,107,255,.28)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--blue);color:var(--blue)}
.btn-light{background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.5);color:#fff}
.btn-light:hover{background:rgba(255,255,255,.28)}
.btn-lg{padding:14px 26px;font-size:16px}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;color:#fff;
  background:
    linear-gradient(135deg,#2F6BFF 0%,#1A8AE0 50%,#0BC8E8 100%);
  border-bottom:1px solid rgba(255,255,255,.18)}
.hero::before{content:"";position:absolute;inset:0;background:
  radial-gradient(700px 360px at 90% 110%,rgba(255,255,255,.18),transparent 60%),
  radial-gradient(560px 320px at 5% -10%,rgba(255,255,255,.22),transparent 60%);
  pointer-events:none}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;padding:48px 0 54px;position:relative;z-index:1}
.eyebrow{display:inline-flex;align-items:center;gap:7px;padding:6px 13px;border-radius:999px;
  background:linear-gradient(135deg,#fff 0%,#E6F4FF 100%);color:var(--blue-d);font-weight:700;font-size:13px;letter-spacing:.4px;margin-bottom:14px;box-shadow:0 8px 22px -8px rgba(0,0,0,.25);border:1px solid rgba(255,255,255,.6)}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--blue)}
.hero h1{font-size:clamp(30px,4vw,46px);line-height:1.16;color:#fff;font-weight:850;letter-spacing:-.5px;text-shadow:0 2px 18px rgba(0,0,0,.18)}
.hero h1 .hl{background:linear-gradient(135deg,#E0F7FF 0%,#FFFFFF 60%,#BFE9FF 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{font-size:17px;color:rgba(255,255,255,.92);margin:16px 0 24px;max-width:540px;text-shadow:0 1px 6px rgba(0,0,0,.12)}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-cta .btn-primary{background:#fff;color:var(--blue-d);box-shadow:0 18px 44px -10px rgba(0,0,0,.28)}
.hero-cta .btn-primary:hover{background:#fff;color:var(--blue);box-shadow:0 24px 56px -8px rgba(0,0,0,.32);transform:translateY(-1px)}
.hero-cta .btn-ghost{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.55);color:#fff;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.hero-cta .btn-ghost:hover{background:rgba(255,255,255,.22);border-color:#fff;color:#fff}
.hero-stats{display:flex;gap:20px;margin-top:28px;flex-wrap:wrap}
.hero-stats .s b{font-size:26px;color:#fff;font-weight:850;text-shadow:0 1px 8px rgba(0,0,0,.18)}
.hero-stats .s span{display:block;font-size:13px;color:rgba(255,255,255,.82)}

/* Hero 双业务流向图 */
.flow{background:#fff;border:1px solid var(--line);border-radius:22px;padding:26px;box-shadow:0 26px 60px -22px rgba(0,0,0,.32),0 0 0 1px rgba(255,255,255,.4) inset}
.flow h4{font-size:14px;color:var(--muted);font-weight:700;letter-spacing:.5px;margin-bottom:16px;text-align:center}
.flow-row{display:grid;grid-template-columns:1fr 46px 1fr;align-items:center;gap:10px;margin-bottom:14px}
.flow-box{border-radius:14px;padding:16px;color:#fff;box-shadow:var(--shadow-sm)}
.flow-box.in{background:linear-gradient(135deg,#2F6BFF,#4F8BFF)}
.flow-box.out{background:linear-gradient(135deg,#06A8CA,#0BC8E8)}
.flow-box .lbl{font-size:12px;opacity:.85}
.flow-box .big{font-size:17px;font-weight:800;margin-top:3px}
.flow-box .sub{font-size:12px;opacity:.9;margin-top:4px}
.flow-arrow{display:grid;place-items:center;color:var(--muted);font-size:20px}
.flow-core{border:1px dashed var(--line);border-radius:14px;padding:14px;text-align:center;background:var(--soft)}
.flow-core b{color:var(--blue-d);font-size:14px}
.flow-core span{font-size:12px;color:var(--muted);display:block;margin-top:2px}
.flow-foot{display:flex;justify-content:space-between;font-size:12px;color:var(--muted);margin-top:6px;padding:0 4px}

/* ---------- Section header ---------- */
.sec-head{max-width:760px;margin:0 auto 32px;text-align:center}
.sec-head .eyebrow{margin-bottom:14px}
.sec-head h2{font-size:clamp(25px,3vw,34px);background:linear-gradient(135deg,var(--ink) 28%,var(--blue));-webkit-background-clip:text;background-clip:text;color:transparent;font-weight:850;letter-spacing:-.4px}
.sec-head p{color:var(--muted);font-size:16px;margin-top:10px}
.sec-head.left{text-align:left;margin-left:0}
.sec-head.left .eyebrow{margin-left:0}

/* ---------- Cards / grid ---------- */
.grid{display:grid;gap:16px}
.cols-3{grid-template-columns:repeat(3,1fr)}
.cols-4{grid-template-columns:repeat(4,1fr)}
.cols-2{grid-template-columns:repeat(2,1fr)}
.flow-chain{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:10px;margin-top:20px}
.flow-chain .fc{background:var(--white);border:1px solid var(--line);border-radius:10px;padding:10px 16px;font-weight:700;color:var(--ink);box-shadow:var(--shadow-sm)}
.flow-chain .arrow{color:var(--blue);font-size:13px;font-weight:600;white-space:nowrap}
.card{background:var(--white);border:1px solid var(--line);border-radius:var(--r);padding:22px;box-shadow:var(--shadow-sm);transition:.2s}
.card:hover{transform:translateY(-4px);box-shadow:0 20px 48px -16px var(--glow-blue);border-color:var(--blue)}
.card .ic{width:50px;height:50px;border-radius:13px;display:grid;place-items:center;font-size:24px;
  background:linear-gradient(135deg,rgba(47,107,255,.18),rgba(11,200,232,.18));margin-bottom:16px}
.card h3{font-size:18px;color:var(--ink);margin-bottom:8px}
.card p{font-size:14.5px;color:var(--text)}
.card .more{display:inline-block;margin-top:14px;color:var(--blue);font-weight:700;font-size:14px}
.card .more:hover{text-decoration:underline}

/* service card with price */
.svc{border-top:3px solid transparent}
.svc:hover{border-top-color:var(--blue)}
.svc .price{font-size:13px;color:var(--muted);margin-top:10px}
.svc .price b{color:var(--ink);font-size:20px}
.svc .tags{display:flex;gap:6px;flex-wrap:wrap;margin-top:12px}
.svc .tags span{font-size:12px;padding:3px 9px;border-radius:999px;background:rgba(47,107,255,.12);color:var(--blue-d);font-weight:600}

/* ---------- 二级卡片式产品导航 ---------- */
.nav-cat{margin-bottom:30px}
.nav-cat:last-child{margin-bottom:0}
.nav-cat-title{display:flex;align-items:center;gap:10px;font-size:18px;color:var(--ink);font-weight:800;
  margin:0 0 14px;padding-left:13px;border-left:4px solid var(--blue)}
.nav-cat-title .ci{font-size:22px;line-height:1}
.svc-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(232px,1fr));gap:14px}
.svc-grid .svc .more{margin-top:14px}

/* ---------- Stats band ---------- */
.band{background:linear-gradient(135deg,var(--blue),var(--cyan-d));color:#fff;border-radius:24px;padding:30px 32px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;box-shadow:var(--shadow-lg)}
.band .b b{font-size:32px;font-weight:850;display:block}
.band .b span{font-size:13.5px;opacity:.9}
.band .b{border-left:1px solid rgba(255,255,255,.25);padding-left:20px}
.band .b:first-child{border-left:none;padding-left:0}

/* ---------- DC matrix ---------- */
.dc{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.dc-card{border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:#fff;box-shadow:var(--shadow-sm);transition:.2s}
.dc-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.dc-card .top{padding:18px 20px;background:linear-gradient(135deg,rgba(47,107,255,.08),#fff);border-bottom:1px solid var(--line)}
.dc-card .top .tag{font-size:12px;font-weight:700;color:var(--blue-d);background:rgba(47,107,255,.1);padding:3px 10px;border-radius:999px}
.dc-card .top h3{font-size:19px;color:var(--ink);margin:10px 0 4px}
.dc-card .top .loc{font-size:13px;color:var(--muted)}
.dc-card .body{padding:16px 20px 20px}
.dc-card .spec{display:grid;grid-template-columns:1fr 1fr;gap:12px 18px;margin:6px 0 16px}
.dc-card .spec div{font-size:13.5px}
.dc-card .spec b{color:var(--ink);display:block;font-size:15px}
.dc-card .spec span{color:var(--muted)}
.dc-card .tags{display:flex;gap:6px;flex-wrap:wrap}
.dc-card .tags span{font-size:12px;padding:3px 9px;border-radius:999px;background:rgba(47,107,255,.12);color:var(--blue-d);font-weight:600}
.dc-figure{margin:28px 0 0;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:#fff;box-shadow:var(--shadow-sm)}
.dc-figure img{display:block;width:100%;height:auto}

/* ---------- Tabs ---------- */
.tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px}
.tab{padding:10px 18px;border:1px solid var(--line);border-radius:999px;background:#fff;cursor:pointer;font-weight:700;font-size:14.5px;color:var(--muted);transition:.16s}
.tab:hover{border-color:var(--blue);color:var(--blue)}
.tab.active{background:var(--blue);color:#fff;border-color:var(--blue)}
.tabpane{display:none}
.tabpane.active{display:block;animation:fade .3s ease}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.env-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.env{background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);padding:20px;box-shadow:var(--shadow-sm)}
.env .ic{font-size:22px;margin-bottom:8px}
.env h4{font-size:15px;color:var(--ink);margin-bottom:6px}
.env p{font-size:13.5px;color:var(--text)}

/* ---------- Maps / regions ---------- */
.map{background:var(--soft);border:1px solid var(--line);border-radius:var(--r);padding:24px;display:grid;grid-template-columns:1.2fr 1fr;gap:24px;align-items:center}
.map .legend{display:flex;flex-direction:column;gap:14px}
.map .node{display:flex;align-items:center;gap:12px}
.map .node .pin{width:14px;height:14px;border-radius:50%;background:var(--blue);box-shadow:0 0 0 5px rgba(47,107,255,.22)}
.map .node .pin.cy{background:var(--cyan);box-shadow:0 0 0 5px rgba(11,200,232,.15)}
.map .node b{color:var(--ink);font-size:15px}
.map .node span{font-size:12.5px;color:var(--muted);display:block}
.china{width:100%;max-width:420px;margin:0 auto}

/* ---------- Credentials ---------- */
.creds{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:14px}
.cred{background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);padding:20px;text-align:center;box-shadow:var(--shadow-sm)}
.cred .ic{font-size:30px;margin-bottom:8px}
.cred b{display:block;color:var(--ink);font-size:14.5px}
.cred span{font-size:12.5px;color:var(--muted)}

/* ---------- FAQ ---------- */
.faq-item{border:1px solid var(--line);border-radius:var(--r-sm);margin-bottom:12px;background:#fff;overflow:hidden}
.faq-q{display:flex;justify-content:space-between;align-items:center;padding:17px 20px;cursor:pointer;font-weight:700;color:var(--ink);font-size:15.5px}
.faq-q .chev{transition:.22s;color:var(--blue)}
.faq-item.open .chev{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;padding:0 20px}
.faq-item.open .faq-a{max-height:320px;padding:0 20px 18px}

/* ---------- Process steps ---------- */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;counter-reset:s}
.step{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);padding:22px 18px;box-shadow:var(--shadow-sm)}
.step .num{width:34px;height:34px;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--cyan));color:#fff;
  display:grid;place-items:center;font-weight:800;margin-bottom:12px}
.step h4{font-size:15px;color:var(--ink);margin-bottom:6px}
.step p{font-size:13px;color:var(--muted)}

/* ---------- Promises (六大服务承诺) ---------- */
.promise{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.promise .p{display:flex;gap:14px;background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);padding:20px;box-shadow:var(--shadow-sm)}
.promise .p .em{font-size:26px}
.promise .p h4{font-size:15.5px;color:var(--ink)}
.promise .p p{font-size:13px;color:var(--muted);margin-top:3px}

/* ---------- News / cases ---------- */
.news{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.news .card .badge{display:inline-block;font-size:11px;font-weight:700;padding:3px 9px;border-radius:999px;margin-bottom:10px}
.b-green{background:rgba(22,163,74,.12);color:#15924A}
.b-blue{background:rgba(47,107,255,.12);color:var(--blue-d)}
.b-cy{background:rgba(11,200,232,.12);color:var(--cyan-d)}
.news .card h3{font-size:16px;line-height:1.45}
.news .card .date{font-size:12px;color:var(--muted);margin-top:10px}

/* ---------- Contact / forms ---------- */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:6px}
.field label{font-size:13px;font-weight:600;color:var(--ink)}
.field input,.field textarea,.field select{padding:11px 13px;border:1px solid var(--line);border-radius:10px;font-size:14px;font-family:inherit;background:#fff;color:var(--ink);transition:.16s}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(47,107,255,.14)}
.field.full{grid-column:1/-1}
.contact-wrap{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start}
.info-list{display:flex;flex-direction:column;gap:12px}
.contact-split{display:grid;grid-template-columns:.85fr 1.15fr;gap:30px;align-items:start;margin-top:6px}
.contact-split .info-list{gap:10px}
.contact-split .info-list .row{padding:12px 14px}
.contact-split .fig{margin:0}
.contact-split .fig img{width:100%;height:auto;border-radius:var(--r);box-shadow:var(--shadow);border:1px solid var(--line);background:#fff;display:block}
.contact-split .fig figcaption{margin-top:10px;color:var(--muted);font-size:13.5px;text-align:center;line-height:1.6}
@media(max-width:720px){
  .contact-split{grid-template-columns:1fr;gap:22px}
  .contact-split .fig{order:-1}
}
.info-list .row{display:flex;gap:14px;background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);padding:14px;box-shadow:var(--shadow-sm)}
.info-list .row .ic{font-size:22px}
.info-list .row b{color:var(--ink);display:block;font-size:15px}
.info-list .row span{font-size:13.5px;color:var(--muted)}

/* ---------- Notice / okbox ---------- */
.notice{background:var(--soft);border:1px solid var(--line);border-left:3px solid var(--blue);
  border-radius:10px;padding:14px 16px;font-size:14px;color:var(--text)}
.okbox{background:linear-gradient(135deg,rgba(22,163,74,.08),rgba(11,200,232,.08));border:1px solid #CFF3DD;
  border-radius:12px;padding:16px 18px;font-size:14.5px;color:#1A8F52}
.okbox b{color:#15924A}
/* 表单提交成功提示（绿色系，呼应 .okbox） */
.form-ok{display:block;margin-top:14px;background:linear-gradient(135deg,rgba(22,163,74,.10),rgba(11,200,232,.10));
  border:1px solid #CFF3DD;border-radius:12px;padding:14px 16px;font-size:14px;color:#1A8F52}

/* ---------- Timeline (about) ---------- */
.timeline{position:relative;padding-left:28px}
.timeline:before{content:"";position:absolute;left:8px;top:6px;bottom:6px;width:2px;background:var(--line)}
.tl-item{position:relative;padding:0 0 26px 18px}
.tl-item:before{content:"";position:absolute;left:-24px;top:5px;width:14px;height:14px;border-radius:50%;
  background:#fff;border:3px solid var(--blue)}
.tl-item .yr{font-weight:850;color:var(--blue-d);font-size:15px}
.tl-item p{font-size:14px;color:var(--text)}

/* ---------- Partners ---------- */
.partners{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.partner{background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);padding:22px;text-align:center;box-shadow:var(--shadow-sm);font-weight:700;color:var(--ink)}
.partner span{display:block;font-size:12px;color:var(--muted);font-weight:500;margin-top:4px}

/* ---------- CTA banner ---------- */
.cta-banner{background:linear-gradient(135deg,var(--blue),var(--cyan-d));color:#fff;border-radius:24px;padding:38px 36px;
  display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap;box-shadow:var(--shadow-lg)}
.cta-banner h2{font-size:26px;font-weight:850}
.cta-banner p{opacity:.96;font-size:26px;font-weight:850;line-height:1.3;margin-top:0}

/* ---------- Footer ---------- */
footer{background:#08182E;color:#D7E3F2;padding:44px 0 22px;margin-top:0}
/* 页脚整体改为 2 列网格：左品牌区 / 右三栏链接；底栏横跨整行 */
footer .wrap{display:grid;grid-template-columns:minmax(280px,1.3fr) minmax(440px,2.7fr);gap:40px;align-items:start}
footer .wrap > div:first-child{max-width:340px}
footer .cols{display:grid;grid-template-columns:1fr 1fr 1fr;gap:24px}
footer .brand{color:#fff;margin-bottom:14px}
footer .brand .logo{background:linear-gradient(135deg,var(--blue),var(--cyan))}
footer p.desc{font-size:13.5px;line-height:1.85;color:#A7BBD9}
footer h5{color:#fff;font-size:14px;margin-bottom:14px;letter-spacing:.4px}
footer a{display:block;font-size:13.5px;color:#A7BBD9;padding:5px 0;transition:.15s}
footer a:hover{color:#fff}
footer .bottom{border-top:1px solid #16304B;margin-top:30px;padding-top:16px;font-size:12.5px;color:#7E97B9;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;grid-column:1/-1}
footer .bottom a{display:inline;padding:0;margin-left:14px}

/* ---------- 表单安全增强（蜜罐反垃圾 + 内联错误提示） ---------- */
/* 蜜罐字段：视觉与辅助技术上均对用户不可见，用于拦截自动化垃圾提交 */
.hp{position:absolute!important;left:-9999px;width:1px;height:1px;overflow:hidden}
.hp label{display:none}
.form-err{margin-top:14px;padding:12px 16px;border:1px solid #fca5a5;background:#fef2f2;color:#b91c1c;border-radius:12px;font-size:14px}

/* ---------- Breadcrumb ---------- */
.crumb{font-size:13px;color:var(--muted);padding:14px 0 0}
.crumb a:hover{color:var(--blue)}

/* ---------- Table ---------- */
table.tbl{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;font-size:14px}
table.tbl th,table.tbl td{border-bottom:1px solid var(--line);padding:12px 14px;text-align:left}
table.tbl th{background:var(--soft);color:var(--blue-d);font-weight:700}
table.tbl tr:last-child td{border-bottom:none}
table.tbl tr:nth-child(even) td{background:#fafcff}

/* ---------- Responsive ---------- */
@media(max-width:980px){
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .cols-4,.cols-3,.news,.env-grid,.promise,.partners{grid-template-columns:repeat(2,1fr)}
  .dc{grid-template-columns:1fr}
  .band{grid-template-columns:repeat(2,1fr);gap:24px}
  .band .b{border-left:none;padding-left:0}
  .map{grid-template-columns:1fr}
  .contact-wrap,.form-grid,.steps{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr 1fr}
  footer .wrap{grid-template-columns:1fr;gap:24px}
  footer .wrap > div:first-child{max-width:none}
  footer .cols{grid-template-columns:1fr 1fr 1fr}
}
@media(max-width:1100px){
  .nav{height:auto;min-height:64px;flex-wrap:wrap;max-width:var(--max)}
  .menu{position:fixed;top:64px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);
    flex-direction:column;align-items:stretch;padding:10px 18px;gap:2px;display:none;box-shadow:var(--shadow);justify-content:flex-start}
  .menu.open{display:flex}
  .menu a{padding:12px 8px;transform:none;box-shadow:none}
  .menu a::after{display:none}
  .hamburger{display:block}
}
@media(max-width:680px){
  .block{padding:46px 0}
  .cols-2,.cols-3,.cols-4,.news,.env-grid,.promise,.partners,.steps{grid-template-columns:1fr}
  .band{grid-template-columns:1fr}
  .cta-banner{flex-direction:column;align-items:flex-start;padding:32px 26px}
  footer .cols{grid-template-columns:1fr}
}


/* ===== 混合云专页附加样式（由 hybrid-cloud.html 内联块迁入，支持严格 CSP） ===== */
/* ===== 混合云专页附加样式 ===== */
.arch{position:relative;max-width:1000px;margin:0 auto;display:flex;flex-direction:column;gap:16px}
.arch-row{display:grid;grid-template-columns:1fr 130px 1fr;gap:14px;align-items:stretch}
.arch-node{border:1px solid var(--line);border-radius:16px;padding:18px;background:#fff;box-shadow:var(--shadow-sm);position:relative}
.arch-node .k{display:inline-block;font-size:12px;font-weight:700;color:#fff;background:linear-gradient(135deg,var(--blue),var(--cyan));padding:3px 11px;border-radius:999px;margin-bottom:12px}
.arch-node h4{font-size:17px;color:var(--ink);margin-bottom:10px}
.arch-node ul{list-style:none;display:flex;flex-direction:column;gap:8px}
.arch-node ul li{font-size:13.5px;color:var(--text);display:flex;gap:8px;align-items:flex-start}
.arch-node ul li:before{content:"•";color:var(--blue);font-weight:800}
.arch-node.idc{border-top:3px solid var(--blue)}
.arch-node.cloud{border-top:3px solid var(--cyan)}
.arch-link{display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--blue-d);font-weight:700;text-align:center;gap:6px}
.arch-link .ln{width:3px;flex:1;background:linear-gradient(180deg,var(--blue),var(--cyan));border-radius:3px;min-height:36px}
.arch-link .badge{font-size:12px;background:rgba(47,107,255,.1);border-radius:10px;padding:8px 10px;line-height:1.4}
.arch-bar{border:1px solid var(--line);border-radius:16px;padding:16px 20px;background:linear-gradient(135deg,var(--soft-2),#fff);box-shadow:var(--shadow-sm)}
.arch-bar .bar-h{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.arch-bar .bar-h b{font-size:16px;color:var(--ink)}
.arch-bar .bar-h .tag{font-size:12px;font-weight:700;color:var(--blue-d);background:rgba(47,107,255,.1);padding:3px 10px;border-radius:999px}
.arch-bar .chips{display:flex;gap:8px;flex-wrap:wrap}
.arch-bar .chips span{font-size:13px;padding:5px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--text);font-weight:600}
.arch-rail{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.arch-rail .side{border:1px dashed var(--line);border-radius:14px;padding:12px 14px;background:var(--soft)}
.arch-rail .side b{display:block;color:var(--ink);font-size:14px;margin-bottom:5px}
.arch-rail .side p{font-size:13px;color:var(--muted)}
/* 场景映射表 */
.map-tbl{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;font-size:14px}
.map-tbl th,.map-tbl td{border-bottom:1px solid var(--line);padding:13px 15px;text-align:left;vertical-align:top}
.map-tbl th{background:var(--soft);color:var(--blue-d);font-weight:700}
.map-tbl tr:last-child td{border-bottom:none}
.map-tbl .pos{font-weight:700;color:var(--ink)}
.map-tbl .idc-c{color:var(--blue-d)}
.map-tbl .cloud-c{color:var(--cyan-d)}
@media(max-width:680px){
  .arch-row{grid-template-columns:1fr}
  .arch-link{flex-direction:row}
  .arch-link .ln{width:auto;height:3px;min-height:0;flex:1}
  .arch-rail{grid-template-columns:1fr}
}

/* ===== Modal（提交咨询后弹出的"添加企业微信"对话框） ===== */
.modal-mask{position:fixed;inset:0;background:rgba(15,23,42,.55);
  -webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);
  display:flex;align-items:center;justify-content:center;z-index:100;padding:20px;
  animation:fadeMask .18s ease}
@keyframes fadeMask{from{opacity:0}to{opacity:1}}
.modal{background:#fff;border-radius:20px;max-width:440px;width:100%;
  box-shadow:0 30px 80px rgba(15,23,42,.4);
  position:relative;overflow:hidden;animation:popModal .25s cubic-bezier(.4,1.4,.6,1)}
@keyframes popModal{from{opacity:0;transform:scale(.94) translateY(8px)}to{opacity:1;transform:scale(1) translateY(0)}}
.modal .close{position:absolute;top:14px;right:14px;width:34px;height:34px;border-radius:50%;
  background:rgba(15,23,42,.06);border:none;cursor:pointer;font-size:18px;color:var(--ink);
  display:grid;place-items:center;transition:.15s;line-height:1;padding:0}
.modal .close:hover{background:rgba(15,23,42,.12)}
.modal-head{padding:24px 24px 6px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.modal-head .tag{font-size:12px;font-weight:700;color:#fff;
  background:linear-gradient(135deg,var(--blue),var(--cyan));
  padding:5px 12px;border-radius:999px;letter-spacing:.4px}
.modal-head h3{font-size:18px;color:var(--ink);font-weight:800;line-height:1.4;flex:1;min-width:0}
.modal-body{padding:6px 24px 6px}
.wx-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px;
  display:flex;align-items:center;gap:16px;text-align:left;margin:6px 0 12px}
.wx-card .info{flex:1;min-width:0}
.wx-card .info .nm{font-size:17px;font-weight:800;color:var(--ink);margin-bottom:6px;
  display:flex;align-items:center;gap:8px}
.wx-card .info .nm .badge{font-size:11px;font-weight:700;color:#15924A;
  background:rgba(22,163,74,.12);padding:2px 8px;border-radius:999px}
.wx-card .info .em{font-size:13.5px;color:var(--text);word-break:break-all;line-height:1.5}
.wx-card .info .em a{color:var(--blue-d);text-decoration:underline;text-underline-offset:2px}
.wx-card .qr{width:120px;height:120px;border:1px solid var(--line);border-radius:10px;
  background:#fff;padding:6px;flex-shrink:0;display:grid;place-items:center;overflow:hidden}
.wx-card .qr img{width:100%;height:100%;display:block;object-fit:contain}
.wx-card .qr .ph{width:100%;height:100%;display:grid;place-items:center;
  background:repeating-conic-gradient(#DCE9F7 0 25%,#fff 0 50%) 0 0/12px 12px;border-radius:4px;
  color:var(--muted);text-align:center;padding:6px;line-height:1.3;font-size:11px}
.modal-tip{padding:0 24px 22px;text-align:center;font-size:14px;color:var(--muted)}
.modal-tip b{color:var(--ink);font-weight:700}
.modal-actions{padding:0 24px 22px;display:flex;gap:10px;flex-wrap:wrap;justify-content:center}
.modal-actions .btn{flex:1;min-width:140px;justify-content:center}
@media(max-width:480px){
  .wx-card{flex-direction:column-reverse;text-align:center}
  .wx-card .info .em{text-align:center}
  .wx-card .qr{width:160px;height:160px}
}

/* ============ 服务承诺页 ============ */
.promise-hero{display:grid;grid-template-columns:1fr 1.05fr;gap:22px;align-items:stretch;margin-top:22px}
.promise-tiles{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.ptile{display:flex;align-items:center;gap:14px;padding:14px 16px;border:1px solid var(--border);border-radius:10px;background:#fff;transition:transform .15s ease,box-shadow .15s ease}
.ptile:hover{transform:translateY(-1px);box-shadow:0 8px 20px -12px rgba(47,107,255,.25)}
.ptile .pic{width:46px;height:46px;border-radius:8px;display:grid;place-items:center;font-size:24px;color:#fff;flex:0 0 46px}
.ptile .pt b{display:block;color:var(--ink);font-size:15px;font-weight:700;line-height:1.3}
.ptile .pt span{display:block;color:var(--muted);font-size:13px;margin-top:2px}
.pt-green .pic{background:linear-gradient(135deg,#16a34a,#22c55e)}
.pt-amber .pic{background:linear-gradient(135deg,#d97706,#f59e0b)}
.pt-blue .pic{background:linear-gradient(135deg,#2563eb,#06b4d4)}
.pt-orange .pic{background:linear-gradient(135deg,#ea580c,#fb923c)}
.pt-red .pic{background:linear-gradient(135deg,#dc2626,#ef4444)}

.promise-gallery{position:relative;display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr;gap:6px;border-radius:12px;overflow:hidden;min-height:340px}
.pg-cell{position:relative;overflow:hidden;background:#0c1e3a}
.pg-cell img{width:100%;height:100%;object-fit:cover;display:block}
.pg-overlay{position:absolute;left:18px;top:18px;background:rgba(255,255,255,.85);backdrop-filter:blur(8px);padding:10px 16px;border-radius:8px;color:var(--blue-d);font-weight:700;font-size:15px;box-shadow:0 6px 18px -8px rgba(15,42,82,.18)}

.promise-card{background:#fff;border:1px solid var(--border);border-radius:14px;padding:24px 26px;box-shadow:0 4px 22px -16px rgba(15,42,82,.12)}
.promise-card .muted{color:var(--muted)}

.promise-table{display:grid;grid-template-columns:1fr 1fr 1fr;gap:0;border:1px solid #c7d2fe;border-radius:8px;overflow:hidden;margin-top:18px;background:#eef2ff}
.ptr{padding:12px 14px;text-align:center;font-size:14.5px;color:var(--ink);border-right:1px solid #c7d2fe;border-bottom:1px solid #c7d2fe}
.ptr:nth-child(3n){border-right:0}
.ptr:nth-last-child(-n+3){border-bottom:0}

.promise-list{list-style:none;padding:0;margin:16px 0 0;max-width:880px}
.promise-list li{position:relative;padding:10px 0 10px 32px;border-bottom:1px dashed var(--border);font-size:15px;line-height:1.7;color:var(--text)}
.promise-list li:before{content:"✓";position:absolute;left:0;top:12px;width:22px;height:22px;border-radius:50%;background:var(--soft-2);color:var(--blue-d);font-size:13px;font-weight:700;display:grid;place-items:center}
.promise-list li:last-child{border-bottom:0}

@media(max-width:880px){
  .promise-hero{grid-template-columns:1fr}
  .promise-gallery{min-height:260px}
}
@media(max-width:560px){
  .promise-table{grid-template-columns:1fr}
  .ptr{border-right:0;border-bottom:1px solid #c7d2fe}
  .ptr:nth-child(3n){border-right:0}
  .ptr:nth-last-child(-n+3){border-bottom:1px solid #c7d2fe}
  .ptr:last-child{border-bottom:0}
  .promise-card{padding:20px 18px}
  .pg-overlay{font-size:13px;padding:8px 12px}
}


/* ===== support.html 扩展：机房对比表 + 服务支持项表 + 增值服务椭圆 + 专家团队 ===== */
.compare-table{width:100%;border-collapse:separate;border-spacing:0;border:1px solid var(--border);border-radius:10px;overflow:hidden;background:#fff}
.ct-row{display:grid;grid-template-columns:1fr 200px 1fr;align-items:stretch}
.ct-row+.ct-row{border-top:1px solid var(--border)}
.ct-head{background:var(--blue-d);color:#fff;font-weight:700}
.ct-head .ct-self,.ct-head .ct-dim,.ct-head .ct-idc{padding:14px 18px;text-align:center;font-size:15px}
.ct-self,.ct-idc{padding:14px 16px;font-size:14px;line-height:1.7;color:var(--text);background:#fbfdff}
.ct-dim{padding:16px 12px;font-size:14.5px;font-weight:700;color:var(--ink);background:var(--soft-2);text-align:center;display:grid;place-items:center;border-left:1px solid var(--border);border-right:1px solid var(--border)}

.service-table{width:100%;border-collapse:separate;border-spacing:0;border:1px solid var(--border);border-radius:10px;overflow:hidden;background:#fff}
.st-head,.st-row,.st-group{display:grid;grid-template-columns:120px 200px 1fr;align-items:stretch}
.st-head{background:var(--blue-d);color:#fff;font-weight:700}
.st-head > div{padding:12px 16px;font-size:14.5px}
.st-row+.st-row,.st-group+.st-row,.st-row+.st-group,.st-group+.st-group{border-top:1px solid var(--border)}
.st-cat{padding:12px 10px;font-weight:700;color:var(--ink);background:#fef2f2;text-align:center;font-size:14.5px;display:grid;place-items:center;border-right:1px solid var(--border);border-bottom:1px solid var(--border)}
.st-item{padding:12px 14px;font-weight:600;color:var(--ink);background:var(--soft);font-size:14.5px;border-right:1px solid var(--border);border-bottom:1px solid var(--border)}
.st-desc{padding:12px 14px;font-size:13.5px;line-height:1.7;color:var(--text);border-bottom:1px solid var(--border)}

.oval-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:16px}
.oval-item{position:relative;padding:32px 16px 18px;border:2px solid #e85a5a;border-radius:50%/35%;text-align:center;background:#fff;min-height:130px;display:grid;place-items:center}
.oval-item .tag{position:absolute;top:10px;left:50%;transform:translateX(-50%);width:32px;height:22px;background:#e85a5a;color:#fff;border-radius:50%;font-size:12px;font-weight:700;display:grid;place-items:center}
.oval-item b{font-size:14.5px;color:var(--ink);font-weight:700;line-height:1.55}

.team-card{background:#fff;border:1px solid var(--border);border-radius:14px;padding:24px 26px;box-shadow:0 4px 22px -16px rgba(15,42,82,.12)}
.team-card h4{color:var(--ink);font-size:17px;font-weight:700;margin-bottom:12px}
.team-card p{font-size:15px;line-height:1.85;color:var(--text);margin-top:12px;text-indent:2em}

@media(max-width:880px){
  .ct-row{grid-template-columns:1fr}
  .ct-dim{border-left:0;border-right:0;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
  .st-head,.st-row,.st-group{grid-template-columns:90px 1fr}
  .st-cat{display:none}
  .oval-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:560px){
  .oval-grid{grid-template-columns:1fr}
}

/* =========================================================
   科技感优化层（IDC / 数据中心风格，严格沿用现有主色，不改动配色）
   - 仅使用 --blue / --cyan / 深色页脚 等既有品牌色派生
   ========================================================= */

/* ---- Hero：右上角网络节点装饰（深底配色，纯装饰，pointer-events:none） ---- */
.hero::after{
  content:"";position:absolute;top:-30px;right:-20px;width:540px;max-width:62vw;height:440px;
  pointer-events:none;z-index:0;opacity:.55;
  background-image:url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' width='540' height='440'><g fill='none' stroke='%23ffffff' stroke-opacity='0.35' stroke-width='1.2'><path d='M48 80 L180 150 L350 104 L470 214'/><path d='M180 150 L240 300 L80 326'/><path d='M350 104 L398 300'/><path d='M470 214 L398 300'/></g><g fill='%23ffffff'><circle cx='48' cy='80' r='5'/><circle cx='180' cy='150' r='6'/><circle cx='350' cy='104' r='5'/><circle cx='470' cy='214' r='4'/><circle cx='240' cy='300' r='5'/><circle cx='80' cy='326' r='4'/><circle cx='398' cy='300' r='4'/></g><g fill='%23BFE9FF'><circle cx='48' cy='80' r='2'/><circle cx='350' cy='104' r='2'/><circle cx='240' cy='300' r='2'/><circle cx='398' cy='300' r='2'/></g></svg>");
  background-repeat:no-repeat;background-position:top right;background-size:contain;
}
.hero .wrap,.hero .hero-grid,.hero .hero-cta{position:relative;z-index:1}
.hero .flow{position:relative;z-index:1;transition:box-shadow .2s ease,border-color .2s ease}
.hero .flow:hover{box-shadow:0 18px 46px -18px var(--glow-blue);border-color:#C3D9F4}

/* ---- 区块标题渐变下划线（科技感焦点） ---- */
.sec-head h2{position:relative}
.sec-head h2::after{content:"";display:block;width:52px;height:4px;border-radius:4px;margin:14px auto 0;
  background:linear-gradient(90deg,var(--blue),var(--cyan))}
.sec-head.left h2::after{margin-left:0}

/* ---- 卡片：悬停辉光 + 顶部渐变填充线 ---- */
.card,.dc-card,.env,.cred,.team-card,.ptile,.partner,.promise .p,.arch-node,.arch-bar,.map{
  position:relative;overflow:hidden}
.card::before,.dc-card::before,.env::before,.cred::before,.team-card::before,.ptile::before,
.partner::before,.promise .p::before,.arch-node::before,.arch-bar::before,.map::before{
  content:"";position:absolute;left:0;top:0;height:3px;width:100%;z-index:3;
  background:linear-gradient(90deg,var(--blue),var(--cyan));
  transform:scaleX(0);transform-origin:left center;transition:transform .28s ease}
.card:hover::before,.dc-card:hover::before,.env:hover::before,.cred:hover::before,
.team-card:hover::before,.ptile:hover::before,.partner:hover::before,.promise .p:hover::before,
.arch-node:hover::before,.arch-bar:hover::before,.map:hover::before{transform:scaleX(1)}
.card:hover{transform:translateY(-4px);box-shadow:0 20px 48px -16px var(--glow-blue);border-color:var(--blue)}
.dc-card:hover{transform:translateY(-4px);box-shadow:0 16px 40px -16px var(--glow-blue)}
.cred:hover{transform:translateY(-4px);box-shadow:0 14px 34px -16px var(--glow-cyan);border-color:#bfe6ef}

/* ---- 按钮：主按钮流光扫过 ---- */
.btn{position:relative;overflow:hidden}
.btn-primary::after{content:"";position:absolute;top:0;left:-130%;width:55%;height:100%;
  background:linear-gradient(120deg,transparent,rgba(255,255,255,.5),transparent);
  transform:skewX(-20deg);transition:left .65s ease;pointer-events:none}
.btn-primary:hover::after{left:140%}

/* ---- 蓝色渐变块（数据带 / CTA）：电路网格纹理 ---- */
.band,.cta-banner{position:relative;overflow:hidden}
.band::before,.cta-banner::before{content:"";position:absolute;inset:0;pointer-events:none;opacity:.55;
  background-image:
    linear-gradient(rgba(255,255,255,.10) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.10) 1px,transparent 1px);
  background-size:28px 28px;
  -webkit-mask-image:linear-gradient(120deg,#000,transparent 85%);
  mask-image:linear-gradient(120deg,#000,transparent 85%)}
.band .b,.cta-banner > *{position:relative;z-index:1}

/* ---- 页脚顶部品牌渐变细线 ---- */
footer{position:relative}
footer::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--blue),var(--cyan));opacity:.9}

/* ---- eyebrow 圆点呼吸（"在线/实时"科技暗示） ---- */
.eyebrow .dot{animation:dotPulse 2.6s ease-in-out infinite}
@keyframes dotPulse{0%,100%{box-shadow:0 0 0 0 var(--glow-cyan)}50%{box-shadow:0 0 0 5px rgba(11,200,232,0)}}

/* ---- 滚动入场（由 main.js 启用；默认内容可见，JS/减弱动效时自动关闭） ---- */
.reveal-on [data-reveal]{opacity:0;transform:translateY(20px);
  transition:opacity .6s ease,transform .6s ease;will-change:opacity,transform}
.reveal-on [data-reveal].in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .reveal-on [data-reveal]{opacity:1!important;transform:none!important;transition:none!important}
}


/* =========================================================
   设计系统 · 通用层（由 :root TOKENS 驱动，统一全站视觉节奏）
   - 仅使用令牌，不引入任何新配色；保持 IDC / 科技感不变
   ========================================================= */

/* ---- 区块间距节奏（令牌驱动，原 60px 节奏保持不变） ---- */
.block{padding:var(--sp-section) 0}

/* ---- 区块底色工具类：替代散落的内联 background:var(--soft) ---- */
.section--tint{background:linear-gradient(180deg,var(--soft),#fff 80%)}

/* ---- 渐变细分割线（可选，用于强调区块边界） ---- */
.rule{height:1px;border:0;margin:0;
  background:linear-gradient(90deg,transparent,var(--line-strong),transparent)}

/* ---- 全局焦点态（可访问性 + 设计系统一致性） ---- */
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,
select:focus-visible,.tab:focus-visible,.menu a:focus-visible{
  outline:2px solid var(--blue);outline-offset:2px;border-radius:var(--r-xs)}

/* ---- 文本选区品牌色 ---- */
::selection{background:rgba(47,107,255,.16);color:var(--ink)}

/* ---- 圆角令牌化（保持原 24px 观感） ---- */
.band,.cta-banner{border-radius:var(--r-lg)}

/* ---- 卡片悬停描边统一（原 #cdd9ee，色值不变，仅令牌化） ---- */
.card:hover,.dc-card:hover{border-color:var(--line-strong)}
.cred:hover{border-color:#bfe6ef}

/* ---- 标题字号令牌化（值与原 clamp 完全一致，便于全站统一调整） ---- */
.sec-head h2{font-size:var(--fs-h2)}
.hero h1{font-size:var(--fs-display)}

/* ---- 平滑锚点滚动（设计系统级动效基线） ---- */
@media(prefers-reduced-motion:no-preference){
  html{scroll-behavior:smooth}
}

/* ---- 计费表 billing.html ---- */
.bill-wrap{overflow-x:auto;border-radius:var(--r);box-shadow:var(--shadow-sm);background:#fff;border:1px solid var(--line)}
.bill-tbl{width:100%;border-collapse:collapse;font-size:14.5px;min-width:760px}
.bill-tbl th,.bill-tbl td{border-bottom:1px solid var(--line);padding:14px 12px;text-align:center;vertical-align:middle}
.bill-tbl th{background:linear-gradient(180deg,var(--soft) 0%,#fff 100%);color:var(--blue-d);font-weight:700;font-size:14px;letter-spacing:.2px}
.bill-tbl tbody tr:last-child td{border-bottom:none}
.bill-tbl tbody tr:nth-child(even) td{background:rgba(247,249,252,.55)}
.bill-tbl tbody tr:hover td{background:rgba(47,107,255,.04)}
.bill-tbl .bill-spec{font-weight:700;color:var(--ink);background:rgba(11,200,232,.06)}
.bill-tbl .bill-price{color:var(--warn);font-weight:800;font-size:16px;font-variant-numeric:tabular-nums}
.bill-tbl .bill-talk{color:var(--blue-d);font-weight:700}
.bill-tbl .bill-unit{font-weight:500;color:var(--muted);font-size:11px;margin-left:4px;letter-spacing:0}
.bill-note{list-style:none;padding:0;color:var(--text);font-size:14px;line-height:1.85}
.bill-note li{position:relative;padding-left:18px;margin-bottom:6px}
.bill-note li::before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--cyan))}

/* ---- 深度定制化流程 billing.html ---- */
.custom-stage{position:relative;margin:14px auto 0;max-width:1080px;background:linear-gradient(135deg,#0c1f4a 0%,#0a3d6b 55%,#0e6e8a 100%);border-radius:var(--r);padding:38px 56px;overflow:hidden;box-shadow:var(--shadow-lg)}
.custom-stage::after{content:"";position:absolute;inset:0;background:repeating-linear-gradient(90deg,transparent 0 38px,rgba(255,255,255,.045) 38px 39px);pointer-events:none}
.custom-bg{position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.18) 1px,transparent 1px);background-size:18px 18px;opacity:.35;pointer-events:none}
.custom-flow{position:relative;display:grid;grid-template-columns:repeat(7,1fr);gap:14px;align-items:stretch;z-index:1}
.custom-step{background:rgba(255,255,255,.12);backdrop-filter:blur(6px);border:1px solid rgba(255,255,255,.22);border-radius:14px;padding:14px 8px 16px;color:#fff;text-align:center;display:flex;flex-direction:column;align-items:center;justify-content:flex-start;transition:.25s}
.custom-step:hover{transform:translateY(-4px);background:rgba(255,255,255,.18);border-color:rgba(255,255,255,.4)}
.custom-num{width:34px;height:34px;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--cyan));color:#fff;display:grid;place-items:center;font-weight:800;font-size:13px;letter-spacing:.4px;margin-bottom:10px;box-shadow:0 4px 12px rgba(47,107,255,.45)}
.custom-tx{font-size:14px;font-weight:600;line-height:1.45;color:#fff;letter-spacing:.5px}
.custom-arrow{position:absolute;right:18px;top:50%;transform:translateY(-50%);font-size:22px;color:rgba(255,255,255,.7);pointer-events:none;z-index:1}
@media(max-width:880px){
  .custom-flow{grid-template-columns:repeat(3,1fr)}
  .custom-arrow{display:none}
  .custom-stage{padding:24px 18px}
}
@media(max-width:520px){
  .custom-flow{grid-template-columns:repeat(2,1fr)}
}

/* ---- IT 系统支撑 support.html ---- */
.it-support{display:grid;grid-template-columns:1.05fr .95fr;gap:30px;align-items:center;margin-top:6px}
.it-support .fig{margin:0}
.it-support .fig img{width:100%;height:auto;border-radius:var(--r);box-shadow:var(--shadow);border:1px solid var(--line);background:#fff}
.it-support .fig figcaption{margin-top:10px;color:var(--muted);font-size:13.5px;text-align:center;line-height:1.6}
.it-pillars{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.it-p{position:relative;overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);padding:16px 18px;box-shadow:var(--shadow-sm);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.it-p b{display:block;color:var(--ink);font-size:15.5px;font-weight:700}
.it-p b::before{content:"";display:inline-block;width:8px;height:8px;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--cyan));margin-right:8px;vertical-align:middle}
.it-p span{display:block;color:var(--muted);font-size:13px;line-height:1.65;margin-top:5px}
.it-p:hover{transform:translateY(-3px);box-shadow:0 12px 30px -16px var(--glow-blue);border-color:var(--line-strong)}
@media(max-width:880px){
  .it-support{grid-template-columns:1fr;gap:22px}
  .it-support .fig{order:-1}
}
@media(max-width:520px){
  .it-pillars{grid-template-columns:1fr}
}

/* ---- MSP 托管服务 msp.html ---- */
.sub-h{margin:32px 0 14px;color:var(--ink);font-size:18px;font-weight:700;position:relative;padding-left:14px}
.sub-h::before{content:"";position:absolute;left:0;top:6px;width:4px;height:18px;border-radius:3px;background:linear-gradient(180deg,var(--blue),var(--cyan))}
.msp-rules{padding-left:0;list-style:none;counter-reset:msprule;color:var(--text);font-size:14.5px;line-height:1.9}
.msp-rules li{position:relative;padding:8px 14px 8px 46px;border-radius:8px;background:#fff;border:1px solid var(--line);margin-bottom:8px;box-shadow:var(--shadow-sm)}
.msp-rules li::before{counter-increment:msprule;content:counter(msprule);position:absolute;left:8px;top:8px;width:28px;height:28px;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--cyan));color:#fff;font-weight:700;font-size:12.5px;display:flex;align-items:center;justify-content:center}
.bill-foot{text-align:center;color:var(--muted);font-size:13.5px;margin-top:18px;line-height:1.7}

/* MSP 五角服务价值图 */
.msp-diagram{display:grid;grid-template-columns:1fr 1fr 1fr;grid-template-rows:1fr 1fr 1fr;gap:12px;max-width:960px;margin:6px auto 0;position:relative;min-height:340px}
.msp-node{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:14px 14px;box-shadow:var(--shadow-sm);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.msp-node::before{content:"";position:absolute;left:14px;top:14px;width:6px;height:6px;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--cyan));box-shadow:0 0 0 4px rgba(47,107,255,.10)}
.msp-node h3{color:var(--ink);font-size:16px;font-weight:750;margin:4px 0 6px 0;letter-spacing:-.2px}
.msp-node ul{list-style:none;padding:0;margin:0;color:var(--text);font-size:13px;line-height:1.55}
.msp-node ul li{padding-left:14px;position:relative}
.msp-node ul li::before{content:"—";position:absolute;left:0;color:var(--cyan);font-weight:600}
.msp-node:hover{transform:translateY(-3px);box-shadow:0 14px 32px -16px var(--glow-blue);border-color:var(--line-strong)}

/* 中心菱形 - 用 clip-path 实现，文字保持正向 */
.msp-center{grid-column:2;grid-row:2;display:flex;align-items:center;justify-content:center;position:relative;z-index:2}
.msp-center .diamond{width:120px;height:120px;display:flex;align-items:center;justify-content:center;color:var(--blue-d);font-weight:850;font-size:16px;letter-spacing:2px;background:linear-gradient(180deg,rgba(255,255,255,.95),rgba(244,248,254,.92));border:1.5px solid rgba(47,107,255,.25);box-shadow:0 14px 36px -18px var(--glow-blue),inset 0 0 0 1px rgba(255,255,255,.6);clip-path:polygon(50% 0,100% 50%,50% 100%,0 50%)}

/* 节点定位：3x3 网格 + 中心 */
.msp-tl{grid-column:1;grid-row:1}
.msp-tr{grid-column:3;grid-row:1}
.msp-bl{grid-column:1;grid-row:3}
.msp-br{grid-column:3;grid-row:3}
.msp-b{grid-column:2;grid-row:3;text-align:center}

@media(max-width:880px){
  .msp-diagram{grid-template-columns:1fr;grid-template-rows:auto;min-height:0;max-width:640px}
  .msp-center{display:none}
  .msp-tl,.msp-tr,.msp-bl,.msp-br,.msp-b{grid-column:auto;grid-row:auto;text-align:left}
}