:root {
  --blue: #1a5fd0;
  --blue-d: #0f3f96;
  --blue-l: #eaf1fd;
  --blue-xl: #f5f8fe;
  --ink: #14192b;
  --ink-2: #3d4759;
  --ink-3: #6b7688;
  --line: #e4e9f2;
  --bg: #ffffff;
  --bg-alt: #f7f9fc;
  --gold: #b8860b;
  --gold-l: #fdf6e3;
  --green: #0f7a52;
  --green-l: #e8f5ef;
  --red: #b4342e;
  --r: 10px;
  --r-lg: 16px;
  --wrap: 1180px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }

/* ---------- 顶栏 ---------- */
.topbar {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: saturate(180%) blur(8px);
}
.topbar-in { display: flex; align-items: center; gap: 32px; height: 66px; }
.brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
/* 品牌区：必捷互联官方 logo（图标 + 必捷互联 + 标语，自托管 assets/img/bijie-logo.png） */
.brand-logo { display: flex; align-items: center; flex-shrink: 0; }
.brand-logo img { display: block; height: 38px; width: auto; }
.brand-sub {
  font-size: 12px; color: var(--ink-3); line-height: 1.4;
  border-left: 1px solid var(--line); padding-left: 14px; white-space: nowrap;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.3; font-size: 15px; font-weight: 600; }
.brand-text em { font-style: normal; font-size: 11px; font-weight: 400; color: var(--ink-3); }
.topnav { display: flex; gap: 26px; margin-left: auto; font-size: 14px; color: var(--ink-2); }
.topnav a { transition: color .15s; }
.topnav a:hover { color: var(--blue); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 26px; border-radius: 8px; border: 1px solid transparent;
  font-size: 15px; font-weight: 500; cursor: pointer; transition: all .15s;
  white-space: nowrap;
}
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--blue-d); }
.btn-ghost { border-color: var(--blue); color: var(--blue); background: #fff; }
.btn-ghost:hover { background: var(--blue-l); }
.btn-sm { padding: 8px 18px; font-size: 14px; }
.btn-block { width: 100%; }

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(180deg, #f2f7ff 0%, #fff 100%);
  padding: 76px 0 84px;
  border-bottom: 1px solid var(--line);
}
.hero-in { display: grid; grid-template-columns: 1.18fr .82fr; gap: 60px; align-items: center; }
.badge {
  display: inline-block; padding: 5px 13px; border-radius: 20px;
  background: var(--blue-l); color: var(--blue-d);
  font-size: 12px; font-weight: 500; letter-spacing: .3px; margin-bottom: 20px;
}
.hero h1 {
  font-size: 42px; line-height: 1.25; font-weight: 700;
  letter-spacing: -.5px; margin-bottom: 20px;
}
.lead { font-size: 17px; color: var(--ink-2); margin-bottom: 28px; max-width: 620px; }
.hero-cta { display: flex; gap: 14px; margin-bottom: 28px; flex-wrap: wrap; }
.hero-points { display: flex; flex-direction: column; gap: 9px; font-size: 14px; color: var(--ink-2); }
.hero-points li { position: relative; padding-left: 22px; }
.hero-points li::before { display: none; content: none; }
.hero-points { list-style: none; padding-left: 0; }

.hero-visual { display: flex; flex-direction: column; gap: 16px; padding-top: 8px; }
.card-mini {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: 22px 24px; box-shadow: 0 2px 12px rgba(20,25,43,.04);
}
.cm-head { margin-bottom: 14px; }
.cm-tag {
  display: inline-block; padding: 3px 10px; border-radius: 5px;
  background: var(--blue-l); color: var(--blue-d); font-size: 12px; font-weight: 600;
}
.cm-tag-alt { background: var(--green-l); color: var(--green); }
.cm-row {
  display: flex; justify-content: space-between; align-items: baseline;
  padding: 11px 0; border-bottom: 1px solid var(--line); font-size: 14px; color: var(--ink-2);
}
.cm-row:last-child { border-bottom: 0; }
.cm-row b { font-size: 19px; color: var(--ink); font-weight: 700; }
.cm-row b em { font-style: normal; font-size: 12px; font-weight: 400; color: var(--ink-3); margin-left: 3px; }
.cm-accent { position: relative; background: var(--gold-l); padding: 11px 24px; border-bottom: 0; }
.cm-accent::before {
  content: ""; position: absolute;
  left: -24px; right: -24px; top: 0; bottom: 0;
  background: var(--gold-l); z-index: -1;
}
.cm-accent b { color: var(--gold); }
.cm-foot { margin-top: 12px; padding-top: 12px; border-top: 1px solid var(--line); font-size: 12px; color: var(--ink-3); }
.cm-list { display: flex; flex-direction: column; gap: 9px; font-size: 14px; color: var(--ink-2); }
.cm-list li { position: relative; padding-left: 20px; }
.cm-list li::before {
  content: ""; position: absolute; left: 0; top: 8px;
  width: 8px; height: 8px; border-radius: 2px; background: var(--green);
}

/* ---------- 通用 section ---------- */
.section { padding: 78px 0; }
.section-alt { background: var(--bg-alt); }
.section-safe { background: var(--bg-xl); }
.sec-head { margin-bottom: 44px; max-width: 760px; }
.sec-no {
  display: inline-block; font-size: 13px; font-weight: 700;
  color: var(--blue); letter-spacing: 1px; margin-bottom: 10px;
}
.sec-no-l { color: #8fb4f5; }
.sec-head h2 { font-size: 30px; font-weight: 700; letter-spacing: -.3px; margin-bottom: 12px; }
.sec-sub { font-size: 16px; color: var(--ink-3); }

/* ============================================================
   ★ 视觉升级 v2 —— 图标系统 / 视觉锤 / 层次感
   ============================================================ */

/* ---------- 首屏视觉锤 ---------- */
.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(1200px 520px at 78% -10%, rgba(26,95,208,.13), transparent 62%),
    linear-gradient(180deg, #eaf1fd 0%, #f7fafe 42%, #fff 100%);
  padding: 88px 0 92px;
}
.hero-bg { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
.hb-grid {
  position: absolute; inset: -2px;
  background-image:
    linear-gradient(rgba(26,95,208,.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(26,95,208,.055) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(900px 480px at 30% 30%, #000 20%, transparent 78%);
  -webkit-mask-image: radial-gradient(900px 480px at 30% 30%, #000 20%, transparent 78%);
}
.hb-glow { position: absolute; border-radius: 50%; filter: blur(70px); }
.hb-glow-1 {
  width: 460px; height: 460px; right: -120px; top: -140px;
  background: radial-gradient(circle, rgba(26,95,208,.30), transparent 68%);
}
.hb-glow-2 {
  width: 340px; height: 340px; right: 180px; bottom: -180px;
  background: radial-gradient(circle, rgba(184,134,11,.20), transparent 68%);
}
.hb-ring { position: absolute; border-radius: 50%; border: 1px solid rgba(26,95,208,.16); }
.hb-ring-1 { width: 460px; height: 460px; right: 40px; top: -110px; }
.hb-ring-2 { width: 300px; height: 300px; right: 120px; top: -30px; border-color: rgba(184,134,11,.22); }

.hero > .wrap { position: relative; z-index: 2; }

.hero h1 {
  font-size: 50px;
  line-height: 1.16;
  letter-spacing: -.025em;
  word-break: keep-all;
  overflow-wrap: normal;
  background: linear-gradient(100deg, #0a2f75 0%, #1a5fd0 30%, #3d8ef0 52%, #b8860b 88%, #d9a520 100%) !important;
  -webkit-background-clip: text !important;
  background-clip: text !important;
  -webkit-text-fill-color: transparent !important;
  color: transparent !important;
  position: relative;
}
.hero .badge {
  background: rgba(255,255,255,.86);
  border: 1px solid rgba(26,95,208,.22);
  box-shadow: 0 4px 14px rgba(26,95,208,.10);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.hero .lead { font-size: 16.5px; max-width: 640px; }

/* ---------- 首屏产品大字：千问办公（我们做的就是这个产品） ---------- */
.hero-product { display: flex; align-items: center; gap: 16px; margin-bottom: 20px; }
.hero-product .hp-mark { width: 68px; height: 68px; display: block; flex: 0 0 auto; }
.hero-product .hp-name {
  font-size: 72px;
  line-height: 1;
  font-weight: 800;
  letter-spacing: .06em;
  background: linear-gradient(100deg, #0a2f75 0%, #1a5fd0 26%, #3d8ef0 52%, #52c98a 92%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
/* 部门场景页：产品行做小一号，不抢场景标题 */
.hero-product-sm { gap: 10px; margin-bottom: 16px; }
.hero-product-sm .hp-mark { width: 28px; height: 28px; }
.hero-product-sm .hp-name { font-size: 30px; letter-spacing: .08em; }
.hero h1 .hl-ai {
  background: linear-gradient(100deg, #1a5fd0 0%, #3d8ef0 45%, #b8860b 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  position: relative;
}
.hero h1 .hl-ai::after {
  content: "";
  position: absolute; left: 0; right: 0; bottom: .06em;
  height: .07em;
  border-radius: 99px;
  background: linear-gradient(90deg, rgba(184,134,11,.75), rgba(184,134,11,.18));
}

/* 首屏三要点：图标 */
.hero-points { gap: 12px; }
.hero-points li {
  display: flex; align-items: flex-start; gap: 12px;
  background: rgba(255,255,255,.72);
  border: 1px solid rgba(26,95,208,.13);
  border-radius: 12px;
  padding: 12px 16px;
  box-shadow: 0 2px 10px rgba(20,25,43,.035);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  transition: transform .16s, box-shadow .16s, border-color .16s;
}
.hero-points li:hover {
  transform: translateX(4px);
  border-color: rgba(26,95,208,.3);
  box-shadow: 0 6px 18px rgba(26,95,208,.10);
}
.hero-points b {
  flex: 0 0 auto;
  display: inline-block;
  color: var(--blue-d);
  font-weight: 700;
  margin-right: 8px;
  position: relative;
}
.hp-ico {
  flex: 0 0 auto;
  width: 30px; height: 30px;
  border-radius: 9px;
  display: flex; align-items: center; justify-content: center;
  background: var(--blue-l);
  color: var(--blue);
}
.hp-ico svg { width: 17px; height: 17px; }
.hp-price { background: var(--gold-l); color: var(--gold); }
.hp-dev   { background: var(--blue-l);  color: var(--blue); }
.hp-serve { background: var(--green-l); color: var(--green); }

/* 首屏右侧卡片：玻璃拟态 */
.hero-visual .card-mini {
  overflow: hidden;
  background: rgba(255,255,255,.90);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255,255,255,.9);
  box-shadow: 0 18px 44px rgba(15,63,150,.13), 0 2px 8px rgba(20,25,43,.05);
  border-radius: var(--r-lg);
}
.hero-visual .card-mini:hover {
  box-shadow: 0 24px 56px rgba(15,63,150,.18), 0 2px 8px rgba(20,25,43,.05);
}
.card-mini-2 { background: linear-gradient(160deg, rgba(15,63,150,.97), rgba(26,95,208,.94)) !important; }
.card-mini-2 .cm-head { border-bottom-color: rgba(255,255,255,.16); }
.card-mini-2 .cm-tag { background: rgba(255,255,255,.15); color: #fff; }
.card-mini-2 .cm-list li { color: rgba(255,255,255,.92); border-bottom-color: rgba(255,255,255,.12); }
.cm-ico {
  flex: 0 0 auto;
  width: 28px; height: 28px;
  border-radius: 9px;
  display: inline-flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,.20);
  border: 1px solid rgba(255,255,255,.24);
  color: #d6e6ff;
  margin-right: 11px;
  box-shadow: 0 2px 8px rgba(0,0,0,.14);
}
.cm-ico svg { width: 16px; height: 16px; stroke-width: 1.9; }
.card-mini .cm-list li { display: flex; align-items: center; }

/* ---------- 六大能力图标 ---------- */
.cap { position: relative; overflow: hidden; transition: transform .2s, box-shadow .2s, border-color .2s; }
.cap:hover { transform: translateY(-4px); border-color: rgba(26,95,208,.3); box-shadow: 0 14px 34px rgba(26,95,208,.11); }
.cap-ico {
  width: 46px; height: 46px;
  border-radius: 13px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(140deg, var(--blue-l), #fff);
  border: 1px solid rgba(26,95,208,.14);
  color: var(--blue);
  margin-bottom: 15px;
  box-shadow: 0 4px 12px rgba(26,95,208,.10);
}
.cap-ico svg { width: 23px; height: 23px; }
.cap-no { position: absolute; top: 20px; right: 22px; font-size: 26px; font-weight: 800; color: rgba(26,95,208,.08); }

/* ---------- 下载卡图标 ---------- */
.dl-card { position: relative; overflow: hidden; transition: transform .18s, box-shadow .18s, border-color .18s; }
.dl-card:hover { transform: translateY(-4px); box-shadow: 0 16px 36px rgba(26,95,208,.14); }
/* 操作系统图标：移到卡片右上角并放大 */
.dl-ico {
  position: absolute;
  top: 20px; right: 20px;
  width: 66px; height: 66px;
  border-radius: 19px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--blue-l); color: var(--blue);
  margin-bottom: 0;
  opacity: .92;
  transition: transform .18s ease, opacity .18s ease;
}
.dl-ico img { display: block; height: 42px; width: auto; }
.dl-card:hover .dl-ico { transform: scale(1.06); opacity: 1; }
.dl-win .dl-ico   { background: #e6f1fb; color: #185fa5; }
.dl-mac .dl-ico   { background: #f1efe8; color: #5f5e5a; }
.dl-linux .dl-ico { background: #fdf6e3; color: #854f0b; }
.dl-harmony .dl-ico { background: #fbeaf0; color: #993556; }
.dl-os { margin-bottom: 0; }

/* ---------- 三层价值：巨型装饰图标 ---------- */
.layer-side { position: relative; overflow: hidden; }
.layer-deco {
  position: absolute;
  right: -14px; bottom: -18px;
  width: 132px; height: 132px;
  color: rgba(26,95,208,.07);
  pointer-events: none;
}
.layer-deco svg { width: 100%; height: 100%; stroke-width: 1.1; }
.layer-hl .layer-deco { color: rgba(184,134,11,.12); }
.layer-side h3 { position: relative; z-index: 2; }
.layer-no { position: relative; z-index: 2; }
.layer-side p { position: relative; z-index: 2; }
.layer { transition: transform .2s, box-shadow .2s; }
.layer:hover { transform: translateY(-3px); box-shadow: 0 18px 42px rgba(15,63,150,.10); }
.layer-hl:hover { box-shadow: 0 18px 42px rgba(184,134,11,.14); }

/* 要点编号升级为圆形徽章 */
.li h4 i {
  width: 24px; height: 24px;
  border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 11.5px;
  letter-spacing: 0;
  box-shadow: 0 3px 8px rgba(26,95,208,.16);
}
.li p { position: relative; }

/* ---------- 智能体类型卡图标 ---------- */
.case { position: relative; overflow: hidden; transition: transform .18s, box-shadow .18s, border-color .18s; }
.case:hover { transform: translateY(-3px); border-color: rgba(26,95,208,.28); box-shadow: 0 12px 28px rgba(26,95,208,.10); }
.case-ico {
  width: 38px; height: 38px;
  border-radius: 11px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--blue-l); color: var(--blue);
  margin-bottom: 12px;
}
.case-ico svg { width: 19px; height: 19px; }
.case-tag { position: absolute; top: 20px; right: 20px; }

/* ---------- 安全合规图标 ---------- */
.safe { position: relative; overflow: hidden; transition: transform .18s, box-shadow .18s; }
.safe:hover { transform: translateY(-3px); box-shadow: 0 14px 32px rgba(26,95,208,.10); }
.safe-ico {
  width: 44px; height: 44px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(26,95,208,.09);
  border: 1px solid rgba(26,95,208,.14);
  color: var(--blue-d);
  margin-bottom: 14px;
}
.safe-ico svg { width: 22px; height: 22px; }

.fs-ico {
  width: 34px; height: 34px;
  border-radius: 10px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--blue-l); color: var(--blue);
  margin-bottom: 12px;
  box-shadow: 0 3px 10px rgba(26,95,208,.12);
}
.fs-ico svg { width: 18px; height: 18px; }

/* ---------- 流程步图标化 ---------- */
.proc-item { transition: transform .16s; }
.proc-item:hover { transform: translateX(4px); }
.proc-no {
  background: linear-gradient(140deg, var(--blue), var(--blue-d));
  color: #fff;
  box-shadow: 0 5px 14px rgba(26,95,208,.26);
  border-radius: 12px;
  width: 38px; height: 38px;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px;
}
.flow-step { transition: transform .18s, box-shadow .18s, border-color .18s; }
.flow-step:hover { transform: translateY(-3px); border-color: rgba(26,95,208,.3); box-shadow: 0 12px 28px rgba(26,95,208,.10); }
.fs-no {
  background: linear-gradient(140deg, var(--blue-l), #fff);
  color: var(--blue-d);
  border: 1px solid rgba(26,95,208,.16);
  box-shadow: none;
}

/* ---------- 价格卡 ---------- */
.plan { transition: transform .2s, box-shadow .2s, border-color .2s; }
.plan:hover { transform: translateY(-4px); box-shadow: 0 20px 46px rgba(15,63,150,.13); }
.plan-top { border-color: rgba(184,134,11,.4); box-shadow: 0 14px 38px rgba(184,134,11,.15); }
.plan-price b { background: linear-gradient(100deg, var(--blue-d), var(--blue)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.plan-top .plan-price b { background: linear-gradient(100deg, #8a6413, var(--gold)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }

/* ---------- FAQ ---------- */
.faq { transition: transform .18s, box-shadow .18s, border-color .18s; }
.faq:hover { transform: translateY(-3px); box-shadow: 0 12px 30px rgba(26,95,208,.10); }
.faq h3 .fq {
  background: linear-gradient(140deg, var(--blue), var(--blue-d));
  color: #fff;
  box-shadow: 0 3px 9px rgba(26,95,208,.24);
}

/* ---------- 按钮强化 ---------- */
.btn-primary {
  background: linear-gradient(120deg, var(--blue), var(--blue-d));
  box-shadow: 0 6px 18px rgba(26,95,208,.28);
  transition: transform .16s, box-shadow .16s;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 26px rgba(26,95,208,.36);
}

/* ---------- 智能体定制区块：加深色锚点 ---------- */
#agent {
  background:
    radial-gradient(900px 420px at 85% 0%, rgba(26,95,208,.10), transparent 60%),
    linear-gradient(180deg, #0d1830 0%, #101f3d 100%);
  position: relative;
  overflow: hidden;
}
#agent h2, #agent .sec-sub, #agent .fs-no, #agent .flow-step h3, #agent .flow-step p,
#agent .cases-title, #agent .case h4, #agent .case p { color: #fff; }
#agent .sec-sub { color: rgba(255,255,255,.62); }
#agent .sec-no { color: rgba(255,255,255,.34); }
#agent .flow-step {
  background: rgba(255,255,255,.045);
  border-color: rgba(255,255,255,.11);
  transition: transform .18s, background .18s, border-color .18s;
}
#agent .flow-step:hover {
  transform: translateY(-3px);
  background: rgba(255,255,255,.085);
  border-color: rgba(255,255,255,.24);
}
#agent .fs-no {
  background: rgba(255,255,255,.10);
  color: #8fb6f5;
  border-color: rgba(255,255,255,.16);
}
#agent .case {
  background: rgba(255,255,255,.045);
  border-color: rgba(255,255,255,.11);
  transition: transform .18s, background .18s, border-color .18s;
}
#agent .case:hover {
  transform: translateY(-3px);
  background: rgba(255,255,255,.085);
  border-color: rgba(255,255,255,.24);
}
#agent .case p { color: rgba(255,255,255,.66); }
#agent .case-tag {
  background: rgba(255,255,255,.10);
  color: #8fb6f5;
  border-color: rgba(255,255,255,.14);
}
#agent .case-ico { background: rgba(255,255,255,.10); color: #8fb6f5; }

/* ---------- 方案摘要：深蓝主色 ---------- */
.summary-card { box-shadow: 0 16px 44px rgba(15,63,150,.10); }
.sc-bar {
  background: linear-gradient(120deg, var(--blue-d), var(--blue));
  border-bottom-color: transparent;
}
.sc-title { color: #fff; }
.sc-bar .btn-ghost {
  background: rgba(255,255,255,.14);
  border-color: rgba(255,255,255,.32);
  color: #fff;
}
.sc-bar .btn-ghost:hover { background: rgba(255,255,255,.26); border-color: rgba(255,255,255,.5); }

/* ---------- 消除内部溢出（价格速览 / 流程卡）---------- */
.cm-body { overflow-wrap: anywhere; word-break: break-word; }
.cm-row { min-width: 0; display: flex; align-items: baseline; gap: 8px; }
.cm-row > span { min-width: 0; overflow-wrap: anywhere; }
.cm-row b { min-width: 0; overflow-wrap: anywhere; word-break: break-all; }
.cm-row b em { font-style: normal; }
#agent .flow-step { min-width: 0; overflow-wrap: anywhere; word-break: break-word; }
#agent .flow-step h3, #agent .flow-step p { overflow-wrap: anywhere; word-break: break-word; }
#agent .flow-step { min-width: 0; overflow-wrap: anywhere; word-break: break-word; }
#agent .flow-step h3, #agent .flow-step p { overflow-wrap: anywhere; word-break: break-word; }

#agent .flow-step { overflow-wrap: anywhere; }
#agent .flow-step h3, #agent .flow-step p { overflow-wrap: anywhere; }

/* ---------- 响应式 ---------- */
@media (max-width: 768px) {
  .hero { padding: 52px 0 58px; }
  .hero h1 { word-break: keep-all; overflow-wrap: normal; }
  .hero h1 .hl-ai { white-space: nowrap; }
  .hero h1 { font-size: 32px !important; line-height: 1.24 !important; }
  .hero-product .hp-name { font-size: 42px; }
  .hero-product .hp-mark { width: 40px; height: 40px; }
  .hero-product { gap: 11px; margin-bottom: 16px; }
  .hero .lead { font-size: 15px; }
  .hb-ring { display: none; }
  .hero-points li { padding: 11px 13px; }
  .layer-deco { width: 96px; height: 96px; right: -8px; bottom: -12px; }
  .cap-ico { width: 40px; height: 40px; }
  .cap-ico svg { width: 20px; height: 20px; }
}
@media (max-width: 400px) {
  .hero h1 { font-size: 28px !important; line-height: 1.26 !important; }
  .hero-product .hp-name { font-size: 34px; }
  .hero-product .hp-mark { width: 32px; height: 32px; }
  .hp-ico { width: 26px; height: 26px; }
  .hp-ico svg { width: 15px; height: 15px; }
}

/* ============================================================
   三层价值（价格 / 对接开发 / 落地服务）
   ============================================================ */
.layers { display: flex; flex-direction: column; gap: 22px; }

.layer {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  transition: box-shadow .18s, border-color .18s;
}
.layer:hover { box-shadow: 0 6px 24px rgba(20,25,43,.07); }

.layer-top {
  display: grid;
  grid-template-columns: 300px 1fr;
}

.layer-side {
  padding: 30px 28px;
  background: var(--blue-xl);
  border-right: 1px solid var(--line);
  position: relative;
}
.layer-no {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--blue);
  margin-bottom: 12px;
}
.layer-side h3 { font-size: 21px; font-weight: 700; margin-bottom: 10px; letter-spacing: -.01em; }
.layer-side p { font-size: 13.5px; line-height: 1.75; color: var(--ink-2); }

.layer-main {
  padding: 26px 30px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px 34px;
}

.li h4 {
  display: flex;
  align-items: baseline;
  gap: 9px;
  font-size: 15.5px;
  font-weight: 600;
  margin-bottom: 7px;
  color: var(--ink);
}
.li h4 i {
  font-style: normal;
  font-size: 11px;
  font-weight: 700;
  color: var(--blue);
  background: var(--blue-l);
  border-radius: 4px;
  padding: 2px 5px;
  flex: 0 0 auto;
  line-height: 1.4;
}
.li p { font-size: 13.5px; line-height: 1.8; color: var(--ink-2); }

/* 高亮层（对接开发 = 核心壁垒） */
.layer-hl { border-color: rgba(184,134,11,.35); }
.layer-hl .layer-side {
  background: linear-gradient(160deg, var(--gold-l) 0%, #fffdf7 100%);
  border-right-color: rgba(184,134,11,.2);
}
.layer-hl .layer-no { color: var(--gold); }
.layer-hl .li h4 i { color: #8a6413; background: var(--gold-l); }
.layer-hl .layer-side h3::after {
  content: "核心壁垒";
  display: inline-block;
  vertical-align: middle;
  margin-left: 10px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--gold);
  background: #fff;
  border: 1px solid rgba(184,134,11,.35);
  border-radius: 4px;
  padding: 2px 7px;
}

.layer-slogan {
  margin-top: 26px;
  padding: 22px 28px;
  background: var(--blue-d);
  border-radius: var(--r);
  font-size: 16px;
  line-height: 1.8;
  color: #fff;
  text-align: center;
}
.layer-slogan span { color: #ffd98a; font-weight: 600; }

/* ============================================================
   一页方案摘要
   ============================================================ */
.summary-card {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
}
.sc-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding: 16px 24px;
  background: var(--blue-xl);
  border-bottom: 1px solid var(--line);
}
.sc-title { font-size: 15px; font-weight: 600; color: var(--ink); }

#copySummary.copied {
  background: var(--green);
  border-color: var(--green);
  color: #fff;
}

.sc-body { padding: 26px 28px; }
.sc-body p {
  font-size: 14.5px;
  line-height: 1.95;
  color: var(--ink-2);
  margin-bottom: 13px;
}
.sc-body p:last-child { margin-bottom: 0; }
.sc-body p b { color: var(--ink); font-weight: 600; }

.sc-foot {
  padding: 12px 24px;
  background: var(--bg-alt);
  border-top: 1px solid var(--line);
  font-size: 12.5px;
  color: var(--ink-3);
}

/* ============================================================
   常见问题
   ============================================================ */
.faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.faq {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 24px 26px;
  transition: border-color .15s, box-shadow .15s;
}
.faq:hover { border-color: rgba(26,95,208,.35); box-shadow: 0 3px 14px rgba(26,95,208,.06); }
.faq h3 {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.6;
  margin-bottom: 10px;
  color: var(--ink);
}
.faq h3 .fq {
  flex: 0 0 auto;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--blue);
  background: var(--blue-l);
  border-radius: 4px;
  padding: 3px 7px;
  margin-top: 3px;
}
.faq p { font-size: 13.5px; line-height: 1.85; color: var(--ink-2); }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1080px) {
  .layer-top { grid-template-columns: 1fr; }
  .layer-side { border-right: none; border-bottom: 1px solid var(--line); }
  .layer-main { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .layer-main { grid-template-columns: 1fr; padding: 22px 20px; gap: 20px; }
  .layer-side { padding: 24px 20px; }
  .layer-slogan { font-size: 14.5px; padding: 18px 20px; }
  .faq-grid { grid-template-columns: 1fr; }
  .sc-bar { padding: 14px 18px; }
  .sc-body { padding: 20px 18px; }
  .sc-foot { padding: 10px 18px; }
}

/* ---------- 客户端下载 ---------- */
.section-download { background: linear-gradient(180deg, #f2f7ff 0%, #fff 100%); }

.dl-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
  margin-bottom: 26px;
}
.dl-card {
  display: flex; flex-direction: column;
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: 24px 22px;
  transition: border-color .15s, transform .15s, box-shadow .15s;
}
.dl-card:hover {
  border-color: var(--blue); transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(26,95,208,.08);
}
.dl-os {
  display: inline-block; align-self: flex-start;
  padding: 3px 10px; border-radius: 5px; margin-bottom: 12px;
  font-size: 11px; font-weight: 700; letter-spacing: .5px;
}
.dl-win .dl-os   { background: #e6f1fb; color: #185fa5; }
.dl-mac .dl-os   { background: #f1efe8; color: #5f5e5a; }
.dl-linux .dl-os { background: #fdf6e3; color: #854f0b; }
.dl-harmony .dl-os { background: #fbeaf0; color: #993556; }

.dl-card strong { font-size: 17px; font-weight: 600; margin-bottom: 7px; padding-right: 74px; }
.dl-card em {
  font-style: normal; font-size: 13px; color: var(--ink-3);
  line-height: 1.6; flex: 1;
}
.dl-btn {
  margin-top: 16px; padding: 9px 16px; border-radius: 7px;
  background: var(--blue-l); color: var(--blue-d);
  font-size: 14px; font-weight: 500; text-align: center;
  transition: background .15s;
}
.dl-card:hover .dl-btn { background: var(--blue); color: #fff; }

.dl-alt {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  padding: 18px 22px; background: #fff;
  border: 1px solid var(--line); border-radius: var(--r);
  margin-bottom: 44px;
}
.dl-alt-label { font-size: 14px; color: var(--ink-2); margin-right: 4px; }

.dl-adv { padding-top: 40px; border-top: 1px solid var(--line); }
.dl-adv-title { font-size: 20px; font-weight: 600; margin-bottom: 22px; }
.dl-adv-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; }
.dl-adv-item {
  background: #fff; border: 1px solid var(--line);
  border-radius: var(--r); padding: 20px 18px;
}
.dl-adv-item h4 { font-size: 15px; font-weight: 600; margin-bottom: 8px; }
.dl-adv-item p { font-size: 13px; color: var(--ink-2); }

.btn-text {
  background: transparent; color: var(--blue); padding: 12px 14px;
  text-decoration: underline; text-underline-offset: 3px;
}
.btn-text:hover { background: var(--blue-l); }

/* ---------- 能力网格 ---------- */
.cap-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.cap {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: 28px 26px; transition: border-color .15s, transform .15s;
}
.cap:hover { border-color: var(--blue); transform: translateY(-2px); }
.cap-no {
  display: block; font-size: 12px; font-weight: 700; color: var(--blue);
  letter-spacing: 1px; margin-bottom: 12px;
}
.cap h3 { font-size: 17px; font-weight: 600; margin-bottom: 10px; }
.cap p { font-size: 14px; color: var(--ink-2); }

/* ---------- 优势网格 ---------- */
.adv-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.adv {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: 30px 26px; display: flex; flex-direction: column;
}
.adv-hl { border-color: var(--gold); background: linear-gradient(180deg, #fffdf7 0%, #fff 60%); }
.adv-ico {
  width: 38px; height: 38px; border-radius: 9px; background: var(--blue-l);
  margin-bottom: 16px; position: relative;
  display: flex; align-items: center; justify-content: center;
  color: var(--blue);
}
.adv-ico svg { width: 20px; height: 20px; }
.adv-hl .adv-ico { background: var(--gold-l); color: var(--gold); }
.adv h3 { font-size: 17px; font-weight: 600; margin-bottom: 10px; }
.adv p { font-size: 14px; color: var(--ink-2); flex: 1; }
.adv-foot {
  margin-top: 16px; padding-top: 14px; border-top: 1px dashed var(--line);
  font-size: 13px; color: var(--blue-d); font-weight: 500;
}
.adv-hl .adv-foot { color: var(--gold); }

/* ---------- 流程 ---------- */
.flow { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; margin-bottom: 56px; }
.flow-step {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r);
  padding: 22px 20px; position: relative;
}
.flow-step::after {
  content: ""; position: absolute; right: 2px; top: 50%; transform: translateY(-50%);
  width: 6px; height: 6px; border-top: 1px solid var(--line); border-right: 1px solid var(--line);
  transform: rotate(45deg); background: #fff;
}
.flow-step:last-child::after { display: none; }
.fs-no { font-size: 11px; font-weight: 700; color: var(--blue); letter-spacing: 1px; }
.flow-step h3 { font-size: 16px; font-weight: 600; margin: 8px 0 8px; }
.flow-step p { font-size: 13px; color: var(--ink-2); }

.cases { padding-top: 44px; border-top: 1px solid var(--line); }
.cases-title { font-size: 20px; font-weight: 600; margin-bottom: 22px; }
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.case {
  background: var(--bg-alt); border: 1px solid var(--line);
  border-radius: var(--r); padding: 24px 22px;
}
.case-tag {
  display: inline-block; padding: 2px 9px; border-radius: 4px;
  background: var(--blue-l); color: var(--blue-d);
  font-size: 11px; font-weight: 600; margin-bottom: 10px;
}
.case h4 { font-size: 16px; font-weight: 600; margin-bottom: 8px; }
.case p { font-size: 13px; color: var(--ink-2); }

/* ---------- 对比表 ---------- */
.cmp-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--r-lg); background: #fff; }
.cmp { width: 100%; border-collapse: collapse; min-width: 720px; }
.cmp th, .cmp td { padding: 15px 20px; text-align: left; border-bottom: 1px solid var(--line); font-size: 14px; }
.cmp thead th { background: var(--bg-alt); font-weight: 600; font-size: 15px; }
.cmp thead th:first-child { color: var(--ink-3); font-size: 13px; font-weight: 500; }
.cmp-p { color: var(--ink-3); }
.cmp-e { color: var(--blue); background: var(--blue-xl); }
.cmp tbody tr:last-child td { border-bottom: 0; }
.cmp tbody td:first-child { color: var(--ink-3); font-size: 13px; width: 24%; }
.cmp-no { color: #b6bcc7; }
.cmp-yes { color: var(--green); font-weight: 500; }
.cmp-note {
  margin-top: 22px; padding: 18px 22px; background: var(--blue-xl);
  border-left: 3px solid var(--blue); border-radius: 0 var(--r) var(--r) 0;
  font-size: 14px; color: var(--ink-2);
}

/* ---------- 价格 ---------- */
/* 三张价格卡等高，底部 CTA 对齐 */
.plan-grid > .plan { display: flex; flex-direction: column; }
.plan-grid > .plan .plan-list { flex: 1; }

.plan-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; align-items: stretch; }
.plan {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: 30px 26px; position: relative;
}
.plan-top { border-color: var(--blue); box-shadow: 0 4px 20px rgba(26,95,208,.09); }
.plan-flag {
  position: absolute; top: -11px; left: 26px; padding: 3px 11px;
  background: var(--blue); color: #fff; border-radius: 5px;
  font-size: 11px; font-weight: 600;
}
.plan-svc { background: linear-gradient(180deg, #fffdf7 0%, #fff 70%); border-color: var(--gold); }
.plan-head { margin-bottom: 16px; }
.plan-name { display: block; font-size: 19px; font-weight: 700; }
.plan-sub { font-size: 13px; color: var(--ink-3); }
.plan-price { margin-bottom: 20px; padding-bottom: 20px; border-bottom: 1px solid var(--line); }
.plan-price b { font-size: 34px; font-weight: 700; color: var(--ink); letter-spacing: -.5px; }
.plan-price span { font-size: 14px; color: var(--ink-3); margin-left: 4px; }
.plan-list { display: flex; flex-direction: column; gap: 10px; margin-bottom: 20px; }
.plan-list li {
  font-size: 14px; color: var(--ink-2); position: relative; padding-left: 20px;
}
.plan-list li::before {
  content: ""; position: absolute; left: 0; top: 9px;
  width: 6px; height: 6px; border-radius: 50%; background: var(--blue);
}
.plan-list-svc li::before { background: var(--gold); }
.plan-list b { color: var(--ink); font-weight: 600; }
.plan-cta {
  padding: 11px 14px; background: var(--bg-alt); border-radius: 7px;
  font-size: 13px; color: var(--ink-2); text-align: center;
}
.plan-top .plan-cta { background: var(--blue-l); color: var(--blue-d); }
.plan-svc .plan-cta { background: var(--gold-l); color: var(--gold); }
.plan-note { margin-top: 22px; font-size: 13px; color: var(--ink-3); }

/* ---------- 实施流程 ---------- */
.proc { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px 40px; }
.proc-item { display: flex; gap: 18px; align-items: flex-start; }
.proc-no {
  flex-shrink: 0; width: 38px; height: 38px; border-radius: 9px;
  background: var(--blue-l); color: var(--blue);
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 700;
}
.proc-item h3 { font-size: 16px; font-weight: 600; margin-bottom: 5px; }
.proc-item p { font-size: 14px; color: var(--ink-2); }

/* ---------- 安全 ---------- */
.safe-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-bottom: 40px; }
.safe { background: #fff; border: 1px solid var(--line); border-radius: var(--r); padding: 24px 22px; }
.safe-tag {
  display: inline-block; font-size: 11px; font-weight: 700; letter-spacing: 1px;
  color: var(--blue); margin-bottom: 10px;
}
.safe h3 { font-size: 16px; font-weight: 600; margin-bottom: 8px; }
.safe p { font-size: 13px; color: var(--ink-2); }
.certs {
  display: flex; align-items: center; gap: 20px; flex-wrap: wrap;
  padding: 22px 26px; background: #fff;
  border: 1px solid var(--line); border-radius: var(--r);
}
.certs-label { font-size: 14px; font-weight: 600; flex-shrink: 0; }
.cert-list { display: flex; gap: 10px; flex-wrap: wrap; }
.cert-list li {
  padding: 5px 13px; background: var(--green-l); color: var(--green);
  border-radius: 20px; font-size: 13px;
}

/* ---------- 联系 ---------- */
.section-dark { background: var(--ink); color: #fff; }
.contact-in { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start; }
.contact-txt h2 { font-size: 30px; font-weight: 700; margin-bottom: 16px; }
.contact-txt p { font-size: 16px; color: #b9c2d4; margin-bottom: 26px; }
.contact-points { display: flex; flex-direction: column; gap: 10px; font-size: 14px; color: #d5dbe7; }
.contact-points li { position: relative; padding-left: 22px; }
.contact-points li::before {
  content: ""; position: absolute; left: 0; top: 9px;
  width: 7px; height: 7px; border-radius: 50%; background: var(--blue);
}
.contact-form {
  background: #fff; border-radius: var(--r-lg); padding: 32px 30px;
}
.cf-row { margin-bottom: 16px; }
.cf-row label {
  display: block; font-size: 13px; font-weight: 500; color: var(--ink-2); margin-bottom: 6px;
}
.cf-row label span { color: var(--red); margin-left: 2px; }
.cf-row input, .cf-row select, .cf-row textarea {
  width: 100%; padding: 10px 13px; border: 1px solid var(--line);
  border-radius: 7px; font-size: 14px; font-family: inherit; color: var(--ink);
  background: #fff; transition: border-color .15s;
}
.cf-row input:focus, .cf-row select:focus, .cf-row textarea:focus {
  outline: none; border-color: var(--blue);
}
.cf-row textarea { resize: vertical; }
.cf-tip { font-size: 12px; color: var(--ink-3); text-align: center; margin-top: 12px; }

/* 线索表单：蜜罐字段 + 提交状态提示 */
.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.cf-status { min-height: 18px; margin: 12px 0 0; font-size: 13px; line-height: 1.6; color: var(--ink-3); }
.cf-status.ok { color: #16a34a; }
.cf-status.err { color: #d93025; }

/* ---------- 页脚 ---------- */
.foot { background: var(--bg-alt); border-top: 1px solid var(--line); padding: 52px 0 0; }
.foot-in { display: grid; grid-template-columns: 1.2fr 1fr; gap: 48px; padding-bottom: 36px; }
.brand-foot { margin-bottom: 14px; flex-direction: column; align-items: flex-start; gap: 8px; }
.brand-foot .brand-logo img { height: 34px; }
.brand-legal { font-size: 12px; color: var(--ink-3); }
.foot-desc { font-size: 13px; color: var(--ink-3); max-width: 380px; }
.foot-r { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.foot-col { display: flex; flex-direction: column; gap: 9px; }
.foot-col h4 { font-size: 14px; font-weight: 600; margin-bottom: 3px; }
.foot-col a { font-size: 13px; color: var(--ink-3); transition: color .15s; }
.foot-col a:hover { color: var(--blue); }
.foot-bottom {
  border-top: 1px solid var(--line); padding: 20px 0 26px;
  display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap;
}
.foot-bottom p { font-size: 12px; color: var(--ink-3); max-width: 620px; }
.foot-legal { white-space: nowrap; }

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .hero-in { grid-template-columns: 1fr; gap: 40px; }
  .hero h1 { font-size: 36px !important; }
  .hero-product .hp-name { font-size: 54px; }
  .hero-product .hp-mark { width: 51px; height: 51px; }
  .cap-grid, .adv-grid, .case-grid, .plan-grid { grid-template-columns: repeat(2, 1fr); }
  .dl-grid { grid-template-columns: repeat(2, 1fr); }
  .dl-adv-grid { grid-template-columns: repeat(3, 1fr); }
  .flow { grid-template-columns: repeat(3, 1fr); }
  .flow-step::after { display: none; }
  .safe-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-in { grid-template-columns: 1fr; gap: 36px; }
  .foot-in { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 768px) {
  .topnav { display: none; }
  .topbar-in { gap: 16px; }
  .brand-logo img { height: 26px; }
  .brand-sub { display: none; }
  .hero { padding: 48px 0 56px; }
  .hero h1 { font-size: 28px; letter-spacing: -.3px; }
  .lead { font-size: 15px; }
  .hero-cta .btn { flex: 1; }
  .section { padding: 52px 0; }
  .sec-head h2 { font-size: 24px; }
  .sec-sub { font-size: 15px; }
  .cap-grid, .adv-grid, .case-grid, .plan-grid { grid-template-columns: 1fr; }
  .dl-grid { grid-template-columns: 1fr; }
  .dl-ico { width: 58px; height: 58px; border-radius: 17px; top: 16px; right: 16px; }
  .dl-ico img { height: 34px; }
  .dl-card strong { padding-right: 66px; }
  .dl-adv-grid { grid-template-columns: 1fr; }
  .flow { grid-template-columns: 1fr; }
  .safe-grid { grid-template-columns: 1fr; }
  .proc { grid-template-columns: 1fr; gap: 18px; }
  .plan-price b { font-size: 30px; }
  .contact-txt h2 { font-size: 24px; }
  .contact-form { padding: 24px 20px; }
  .foot-r { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .foot-bottom { flex-direction: column; gap: 10px; }
  .certs { flex-direction: column; align-items: flex-start; gap: 14px; }
}

@media (max-width: 400px) {
  .wrap { padding: 0 18px; }
  .hero h1 { font-size: 25px !important; }
  .btn { padding: 11px 20px; font-size: 14px; }
  .hero-cta { flex-direction: column; }
  .hero-cta .btn { width: 100%; }
}