/* ==========================================================================
   kf.eycit.com远程协助下载站 · 主样式
   设计基调：白底墨绿 + 易云城品牌蓝强调 / 线性图标 / 资源全内联 / 零外部依赖
   品牌关联：主站 www.eycit.com 主色 #0b63f6，本站作为旗下子站以墨绿为主调、
            蓝色为强调色，形成「同族不同面」的视觉关系。
   ========================================================================== */

:root {
  --ink: #1a2b25;
  --ink-2: #4a5d55;
  --ink-3: #7b8c85;
  --ink-4: #a3b4ac;
  --green: #14654a;
  --green-d: #0d4a35;
  --green-l: #e8f2ee;
  --green-ll: #f0f7f4;
  /* 易云城品牌蓝：主站 #0b63f6，此处降饱和作强调与关联色 */
  --brand: #0b63f6;
  --brand-d: #0848b0;
  --brand-l: #eef2ff;
  --brand-ll: #f5f7ff;
  --line: #dde5e1;
  --line-2: #eef2f0;
  --bg: #ffffff;
  --bg-2: #f7faf9;
  --bg-3: #f1f6f3;
  --warn-bg: #fdf6e8;
  --warn-line: #e8d9b4;
  --warn-ink: #7a5b14;
  --ok: #1a7a52;
  --r: 10px;
  --r-l: 14px;
  --shadow: 0 1px 3px rgba(20, 60, 45, .06), 0 8px 24px rgba(20, 60, 45, .05);
  --shadow-h: 0 2px 6px rgba(20, 60, 45, .09), 0 14px 34px rgba(20, 60, 45, .09);
  --shadow-glow: 0 4px 20px rgba(11, 99, 246, .12);
  --shadow-card: 0 1px 2px rgba(20, 60, 45, .04), 0 6px 16px rgba(20, 60, 45, .04);
  --shadow-card-h: 0 2px 8px rgba(20, 60, 45, .07), 0 16px 40px rgba(20, 60, 45, .08);
}

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--green); text-decoration: none; }
a:hover { color: var(--green-d); }

img, svg { display: block; max-width: 100%; }

.wrap { width: 100%; max-width: 1080px; margin: 0 auto; padding: 0 20px; }

.skip {
  position: absolute; left: -9999px; top: 0;
  background: var(--green); color: #fff; padding: 10px 16px; z-index: 99;
}
.skip:focus { left: 8px; top: 8px; color: #fff; }

/* ---------- 顶部导航 ---------- */
.topbar {
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, .96);
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: saturate(180%) blur(8px);
}
.topbar .wrap {
  display: flex; align-items: center; gap: 20px;
  height: 62px;
}
.brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-mark {
  width: 34px; height: 34px; border-radius: 8px;
  background: var(--green); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; font-weight: 700; letter-spacing: -.5px;
}
.brand-txt { display: flex; flex-direction: column; line-height: 1.2; }
.brand-txt b { font-size: 15.5px; font-weight: 600; letter-spacing: .2px; }
.brand-txt span { font-size: 11.5px; color: var(--ink-3); letter-spacing: .3px; }
/* 易云城旗下标识 */
.brand-badge {
  font-size: 10px; color: var(--brand); background: var(--brand-l);
  padding: 1px 6px; border-radius: 100px; font-weight: 500;
  letter-spacing: .4px; margin-top: 2px;
}

.nav { margin-left: auto; display: flex; align-items: center; gap: 4px; }
.nav a {
  color: var(--ink-2); font-size: 14.5px; padding: 8px 12px;
  border-radius: 7px; transition: background .15s, color .15s;
}
.nav a:hover { background: var(--green-l); color: var(--green); }
.nav a.on { color: var(--green); background: var(--green-l); font-weight: 500; }
.nav-cta {
  margin-left: 8px; background: var(--green); color: #fff !important;
  padding: 9px 16px !important; font-weight: 500; box-shadow: 0 1px 2px rgba(13, 74, 53, .2);
}
.nav-cta:hover { background: var(--green-d); color: #fff !important; }

.burger { display: none; margin-left: auto; background: none; border: 1px solid var(--line); border-radius: 8px; width: 40px; height: 36px; cursor: pointer; align-items: center; justify-content: center; }
.burger span { display: block; width: 17px; height: 1.5px; background: var(--ink); position: relative; }
.burger span::before, .burger span::after { content: ""; position: absolute; left: 0; width: 17px; height: 1.5px; background: var(--ink); }
.burger span::before { top: -5.5px; }
.burger span::after { top: 5.5px; }

/* ---------- Hero ---------- */
.hero {
  background:
    radial-gradient(900px 380px at 12% -10%, #eef6f2 0%, rgba(255,255,255,0) 60%),
    linear-gradient(180deg, #fbfdfc 0%, #ffffff 100%);
  border-bottom: 1px solid var(--line);
  padding: 54px 0 46px;
}
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 44px; align-items: center; }
.pill {
  display: inline-flex; align-items: center; gap: 7px;
  background: var(--green-l); color: var(--green);
  font-size: 13px; padding: 5px 13px; border-radius: 100px;
  border: 1px solid #d3e6dd; margin-bottom: 18px;
}
.dot { width: 6px; height: 6px; border-radius: 50%; background: var(--ok); flex-shrink: 0; }
.dot.live { animation: pulse 2.2s ease-in-out infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .35; } }

.hero h1 {
  font-size: 34px; line-height: 1.35; font-weight: 700; letter-spacing: -.4px;
  margin-bottom: 14px;
}
.hero h1 em { font-style: normal; color: var(--green); }
.hero-sub { font-size: 16.5px; color: var(--ink-2); margin-bottom: 22px; max-width: 34em; }

.hero-act { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 22px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 24px; border-radius: 9px; font-size: 15.5px; font-weight: 500;
  border: 1px solid transparent; cursor: pointer; transition: all .16s;
}
.btn-main { background: var(--green); color: #fff; box-shadow: 0 1px 2px rgba(13,74,53,.18); }
.btn-main:hover { background: var(--green-d); color: #fff; transform: translateY(-1px); box-shadow: 0 6px 18px rgba(13,74,53,.2); }
.btn-brand { background: var(--brand); color: #fff; box-shadow: 0 1px 2px rgba(11,99,246,.2); }
.btn-brand:hover { background: var(--brand-d); color: #fff; transform: translateY(-1px); box-shadow: 0 6px 18px rgba(11,99,246,.25); }
.btn-ghost { background: #fff; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--green); color: var(--green); background: var(--green-l); }
.btn svg { width: 17px; height: 17px; flex-shrink: 0; }

.hero-note { display: flex; flex-wrap: wrap; gap: 8px 20px; font-size: 13.5px; color: var(--ink-3); }
.hero-note span { display: inline-flex; align-items: center; gap: 6px; }
.hero-note svg { width: 14px; height: 14px; color: var(--ok); flex-shrink: 0; }

/* Hero 侧：等待卡片 */
.wait-card {
  background: #fff; border: 1px solid var(--line); border-radius: 14px;
  padding: 22px; box-shadow: var(--shadow);
}
.wait-card h2 { font-size: 15px; font-weight: 600; margin-bottom: 3px; }
.wait-card > p { font-size: 13.5px; color: var(--ink-3); margin-bottom: 16px; }
.steps { list-style: none; counter-reset: s; }
.steps li {
  counter-increment: s; position: relative;
  padding: 0 0 16px 34px; font-size: 14.5px; line-height: 1.6;
}
.steps li::before {
  content: counter(s); position: absolute; left: 0; top: 1px;
  width: 22px; height: 22px; border-radius: 50%;
  background: var(--green-l); color: var(--green);
  font-size: 12px; font-weight: 600;
  display: flex; align-items: center; justify-content: center;
}
.steps li:not(:last-child)::after {
  content: ""; position: absolute; left: 10.5px; top: 26px; bottom: 6px;
  width: 1px; background: var(--line);
}
.steps li b { font-weight: 600; }
.steps li small { display: block; color: var(--ink-3); font-size: 13px; line-height: 1.55; }

/* ---------- 通用区块 ---------- */
section { padding: 52px 0; }
.sec-alt { background: var(--bg-2); border-top: 1px solid var(--line-2); border-bottom: 1px solid var(--line-2); }

.sec-head { margin-bottom: 30px; }
.sec-eyebrow {
  font-size: 13px; color: var(--green); font-weight: 600;
  letter-spacing: 1.2px; text-transform: uppercase; margin-bottom: 8px;
}
.sec-head h2 { font-size: 25px; font-weight: 700; letter-spacing: -.3px; margin-bottom: 9px; }
.sec-head p { color: var(--ink-2); font-size: 15.5px; max-width: 46em; }

.sec-head-row {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 20px; flex-wrap: wrap; margin-bottom: 26px;
}
.sec-head-row .sec-head { margin-bottom: 0; }

/* ---------- 下载卡片 ---------- */
.dl-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(272px, 1fr)); gap: 16px; }

.dl-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r);
  padding: 20px; display: flex; flex-direction: column;
  transition: border-color .16s, box-shadow .16s, transform .16s;
  position: relative;
}
.dl-card:hover { border-color: #b9d3c8; box-shadow: var(--shadow-h); transform: translateY(-2px); }
.dl-card.recommended { border-color: var(--green); box-shadow: var(--shadow); }
.dl-card.recommended::after {
  content: "首选"; position: absolute; top: -9px; right: 16px;
  background: var(--green); color: #fff; font-size: 11.5px; font-weight: 600;
  padding: 3px 10px; border-radius: 100px; letter-spacing: .5px;
}

.dl-top { display: flex; align-items: center; gap: 12px; margin-bottom: 13px; }
.dl-logo {
  width: 42px; height: 42px; border-radius: 9px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 15px; font-weight: 700; color: #fff; letter-spacing: -.5px;
}
.dl-top h3 { font-size: 16.5px; font-weight: 600; letter-spacing: -.2px; }
.dl-top .ver { font-size: 12.5px; color: var(--ink-3); }

.dl-desc { font-size: 14px; color: var(--ink-2); margin-bottom: 14px; flex: 1; }
.dl-feat { list-style: none; margin-bottom: 16px; }
.dl-feat li {
  font-size: 13.5px; color: var(--ink-2); line-height: 1.5;
  padding-left: 19px; position: relative; margin-bottom: 5px;
}
.dl-feat li::before {
  content: ""; position: absolute; left: 3px; top: 8.5px;
  width: 5px; height: 5px; border-radius: 50%; background: var(--ok);
}
.dl-feat li.warn::before { background: #c08a2e; }

.dl-act { display: flex; gap: 8px; }
.dl-btn {
  flex: 1; display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  padding: 11px 14px; border-radius: 8px; font-size: 14.5px; font-weight: 500;
  background: var(--green); color: #fff; border: 1px solid var(--green);
  transition: all .16s; text-align: center;
}
.dl-btn:hover { background: var(--green-d); border-color: var(--green-d); color: #fff; }
.dl-btn svg { width: 16px; height: 16px; }
.dl-btn-alt {
  flex: 0 0 auto; padding: 11px 13px; border-radius: 8px;
  border: 1px solid var(--line); color: var(--ink-2);
  display: inline-flex; align-items: center; font-size: 14px; background: #fff;
}
.dl-btn-alt:hover { border-color: var(--green); color: var(--green); background: var(--green-l); }

.dl-meta {
  margin-top: 11px; font-size: 12.5px; color: var(--ink-3);
  display: flex; align-items: center; gap: 6px; flex-wrap: wrap;
}
.dl-meta code {
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 11.5px; background: var(--bg-2); padding: 1px 6px;
  border-radius: 4px; border: 1px solid var(--line-2); color: var(--ink-2);
  word-break: break-all;
}

/* ---------- 提示条 ---------- */
.notice {
  display: flex; gap: 12px; padding: 15px 18px; border-radius: var(--r);
  background: var(--warn-bg); border: 1px solid var(--warn-line);
  color: var(--warn-ink); font-size: 14.5px; line-height: 1.65;
}
.notice svg { width: 19px; height: 19px; flex-shrink: 0; margin-top: 2px; }
.notice b { font-weight: 600; }
.notice a { color: var(--warn-ink); text-decoration: underline; text-underline-offset: 2px; }

/* ---------- 服务范围 ---------- */
.svc-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 16px; }
.svc-col { background: #fff; border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; }
.svc-col h3 {
  font-size: 15px; font-weight: 600; padding: 14px 18px;
  background: var(--green-l); color: var(--green);
  border-bottom: 1px solid #dceae4; display: flex; align-items: center; gap: 8px;
}
.svc-col h3 svg { width: 16px; height: 16px; }
.svc-col ul { list-style: none; padding: 8px 18px 14px; }
.svc-col li {
  font-size: 14.5px; color: var(--ink-2); padding: 9px 0 9px 20px;
  position: relative; border-bottom: 1px solid var(--line-2); line-height: 1.55;
}
.svc-col li:last-child { border-bottom: 0; }
.svc-col li::before {
  content: ""; position: absolute; left: 2px; top: 17px;
  width: 5px; height: 5px; border-radius: 1px; background: var(--ok);
  transform: rotate(45deg);
}

/* ---------- 流程 ---------- */
.flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; counter-reset: f; }
.flow-item { position: relative; padding: 0 18px; }
.flow-item:not(:last-child)::after {
  content: ""; position: absolute; right: -6px; top: 21px;
  width: 9px; height: 9px; border-top: 1.5px solid var(--line);
  border-right: 1.5px solid var(--line); transform: rotate(45deg);
}
.flow-no {
  width: 42px; height: 42px; border-radius: 11px; margin-bottom: 13px;
  background: #fff; border: 1.5px solid var(--green); color: var(--green);
  display: flex; align-items: center; justify-content: center;
  font-size: 17px; font-weight: 700; position: relative; z-index: 1;
}
.flow-item h3 { font-size: 15.5px; font-weight: 600; margin-bottom: 6px; }
.flow-item p { font-size: 14px; color: var(--ink-2); line-height: 1.6; }

/* ---------- 安全承诺 ---------- */
.safe-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(238px, 1fr)); gap: 16px; }
.safe-item { background: #fff; border: 1px solid var(--line); border-radius: var(--r); padding: 20px; }
.safe-ico {
  width: 36px; height: 36px; border-radius: 9px; background: var(--green-l);
  color: var(--green); display: flex; align-items: center; justify-content: center; margin-bottom: 12px;
}
.safe-ico svg { width: 19px; height: 19px; }
.safe-item h3 { font-size: 15px; font-weight: 600; margin-bottom: 5px; }
.safe-item p { font-size: 13.5px; color: var(--ink-2); line-height: 1.6; }

/* ---------- FAQ ---------- */
.faq { max-width: 780px; }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item:last-child { border-bottom: 0; }
.faq-q {
  width: 100%; text-align: left; background: none; border: 0;
  padding: 17px 40px 17px 0; font-size: 15.5px; font-weight: 500;
  color: var(--ink); cursor: pointer; position: relative; font-family: inherit;
}
.faq-q::after {
  content: ""; position: absolute; right: 8px; top: 50%;
  width: 8px; height: 8px; margin-top: -6px;
  border-right: 1.6px solid var(--ink-3); border-bottom: 1.6px solid var(--ink-3);
  transform: rotate(45deg); transition: transform .2s;
}
.faq-q:hover { color: var(--green); }
.faq-item.open .faq-q::after { transform: rotate(-135deg); margin-top: -2px; }
.faq-a {
  max-height: 0; overflow: hidden; transition: max-height .25s ease;
  font-size: 14.5px; color: var(--ink-2); line-height: 1.7;
}
.faq-a-in { padding: 0 40px 18px 0; }
.faq-a p { margin-bottom: 9px; }
.faq-a p:last-child { margin-bottom: 0; }
.faq-a ol, .faq-a ul { margin: 0 0 9px 20px; }
.faq-a li { margin-bottom: 4px; }

/* ---------- 联系 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.ct-card { background: #fff; border: 1px solid var(--line); border-radius: var(--r); padding: 22px; }
.ct-card h3 {
  font-size: 14px; font-weight: 600; color: var(--ink-3);
  text-transform: uppercase; letter-spacing: .8px; margin-bottom: 12px;
  display: flex; align-items: center; gap: 7px;
}
.ct-card h3 svg { width: 15px; height: 15px; color: var(--green); }
.ct-big { font-size: 25px; font-weight: 700; color: var(--green); letter-spacing: -.3px; display: block; margin-bottom: 4px; }
.ct-row { display: flex; align-items: center; gap: 10px; margin-top: 12px; font-size: 14.5px; }
.ct-row + .ct-row { margin-top: 9px; }
.ct-row .k { color: var(--ink-3); font-size: 13.5px; min-width: 62px; }
.ct-row .v { color: var(--ink); font-weight: 500; }
.ct-copy { margin-left: auto; }
.ct-mini {
  font-size: 12.5px; color: var(--ink-2); background: var(--bg-2);
  border: 1px solid var(--line); padding: 3px 9px; border-radius: 6px; cursor: pointer;
  font-family: inherit;
}
.ct-mini:hover { border-color: var(--green); color: var(--green); }
.ct-tip { font-size: 13.5px; color: var(--ink-2); line-height: 1.7; margin-top: 12px; padding-top: 12px; border-top: 1px solid var(--line-2); }
.ct-tip b { color: var(--ink); font-weight: 600; }

/* ---------- 页脚 ---------- */
.foot { background: var(--ink); color: #b6c6bf; padding: 34px 0 26px; font-size: 14px; }
.foot-top { display: flex; flex-wrap: wrap; gap: 30px; justify-content: space-between; padding-bottom: 22px; border-bottom: 1px solid rgba(255,255,255,.1); }
.foot-brand { max-width: 330px; }
.foot-brand .fb { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.foot-brand .brand-mark { background: rgba(255,255,255,.12); }
.foot-brand b { color: #fff; font-size: 15.5px; }
.foot-brand p { font-size: 13.5px; line-height: 1.65; color: #93a69e; }
.foot-links { display: flex; flex-wrap: wrap; gap: 40px; }
.foot-links h4 { font-size: 13px; color: #fff; font-weight: 600; margin-bottom: 10px; letter-spacing: .5px; }
.foot-links a { display: block; color: #93a69e; font-size: 13.5px; padding: 3px 0; }
.foot-links a:hover { color: #fff; }
.foot-bot { padding-top: 18px; display: flex; flex-wrap: wrap; gap: 8px 20px; justify-content: space-between; font-size: 13px; color: #7e918a; }
.foot-bot a { color: #7e918a; }
.foot-bot a:hover { color: #fff; }

/* ---------- 移动端浮动联系条 ---------- */
.mbar {
  display: none; position: fixed; left: 0; right: 0; bottom: 0; z-index: 60;
  background: #fff; border-top: 1px solid var(--line);
  padding: 9px 12px calc(9px + env(safe-area-inset-bottom));
  gap: 9px; box-shadow: 0 -2px 14px rgba(20,60,45,.08);
}
.mbar a {
  flex: 1; display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  padding: 11px; border-radius: 9px; font-size: 14.5px; font-weight: 500;
  border: 1px solid var(--line); color: var(--ink-2);
}
.mbar a svg { width: 16px; height: 16px; }
.mbar a.main { background: var(--green); color: #fff; border-color: var(--green); }

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 30px; }
  .hero h1 { font-size: 28px; }
  .flow { grid-template-columns: repeat(2, 1fr); gap: 28px 0; }
  .flow-item:nth-child(2)::after { display: none; }
  .contact-grid { grid-template-columns: 1fr; }
  .duo { grid-template-columns: 1fr; }
  .sw-grid { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
}
@media (max-width: 720px) {
  body { font-size: 15.5px; }
  .burger { display: flex; }
  .nav {
    display: none; position: absolute; top: 62px; left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--line);
    flex-direction: column; align-items: stretch; padding: 10px 16px 16px; gap: 2px;
    box-shadow: 0 10px 24px rgba(20,60,45,.08);
  }
  .nav.show { display: flex; }
  .nav a { padding: 11px 12px; }
  .nav-cta { margin: 6px 0 0; justify-content: center; }
  section { padding: 40px 0; }
  .hero { padding: 38px 0 34px; }
  .hero h1 { font-size: 25px; }
  .sec-head h2 { font-size: 21px; }
  .flow { grid-template-columns: 1fr; gap: 22px; }
  .flow-item { padding: 0; }
  .flow-item::after { display: none !important; }
  .dl-act { flex-wrap: wrap; }
  .dl-btn { flex: 1 0 100%; }
  .mbar { display: flex; }
  body { padding-bottom: 66px; }
  .foot-bot { flex-direction: column; gap: 6px; }
  .wait-card { padding: 18px; }
}
@media (max-width: 560px) {
  .sw-grid { grid-template-columns: 1fr; }
  .sw-bar { padding: 12px; }
  .chip { font-size: 13px; padding: 6px 11px; }
  .duo-card { padding: 20px; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}

/* ==========================================================================
   新增：品牌关联 / 信任体系 / 专业增强
   ========================================================================== */

/* 易云城旗下品牌标识条 */
.brand-strip {
  background: var(--brand-l); border-bottom: 1px solid #dfe4f8;
  font-size: 12.5px; color: var(--brand); font-weight: 500;
}
.brand-strip .wrap { display: flex; align-items: center; gap: 8px; height: 30px; }
.brand-strip svg { width: 14px; height: 14px; flex-shrink: 0; }

/* 信任徽章 */
.trust-row { display: flex; flex-wrap: wrap; gap: 10px 24px; margin-bottom: 28px; }
.trust-item { display: inline-flex; align-items: center; gap: 7px; font-size: 13.5px; color: var(--ink-2); }
.trust-item svg { width: 17px; height: 17px; color: var(--brand); flex-shrink: 0; }

/* 为什么选择我们 */
.why-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; }
.why-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-l);
  padding: 24px; transition: box-shadow .16s, transform .16s, border-color .16s;
}
.why-card:hover { box-shadow: var(--shadow-card-h); transform: translateY(-2px); border-color: #c9ddd3; }
.why-ic {
  width: 44px; height: 44px; border-radius: 11px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center; margin-bottom: 14px;
}
.why-ic svg { width: 22px; height: 22px; }
.why-card.green .why-ic { background: var(--green-l); color: var(--green); }
.why-card.blue .why-ic { background: var(--brand-l); color: var(--brand); }
.why-card.amber .why-ic { background: #fef3d6; color: #8a6414; }
.why-card.rose .why-ic { background: #fde7e7; color: #b83232; }
.why-card h3 { font-size: 17px; font-weight: 600; letter-spacing: -.2px; margin-bottom: 7px; }
.why-card p { font-size: 14px; color: var(--ink-2); line-height: 1.7; }

/* 价格透明区 */
.price-table { width: 100%; border-collapse: collapse; font-size: 14.5px; margin-top: 8px; }
.price-table th, .price-table td { padding: 13px 16px; text-align: left; border-bottom: 1px solid var(--line); }
.price-table th { background: var(--bg-2); font-weight: 600; color: var(--ink); font-size: 13.5px; white-space: nowrap; }
.price-table td .amt { font-weight: 700; color: var(--green); font-size: 16px; }
.price-table tr:hover td { background: var(--bg-2); }

/* 服务区域标签 */
.area-grid { display: flex; flex-wrap: wrap; gap: 8px; }
.area-tag {
  background: #fff; border: 1px solid var(--line); border-radius: 100px;
  padding: 7px 15px; font-size: 13.5px; color: var(--ink-2);
  transition: all .15s;
}
.area-tag:hover { border-color: var(--brand); color: var(--brand); background: var(--brand-l); }
.area-tag.hot { border-color: var(--green); color: var(--green); background: var(--green-l); font-weight: 500; }

/* 客户评价卡片 */
.review-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; }
.review-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r);
  padding: 22px; position: relative;
}
.review-card::before {
  content: "\201C"; position: absolute; top: 10px; right: 18px;
  font-size: 48px; color: var(--green-l); line-height: 1; font-family: Georgia, serif;
}
.review-stars { display: flex; gap: 2px; margin-bottom: 10px; }
.review-stars svg { width: 16px; height: 16px; fill: #e8b74a; }
.review-text { font-size: 14px; color: var(--ink-2); line-height: 1.75; margin-bottom: 14px; }
.review-author { display: flex; align-items: center; gap: 10px; }
.review-avatar {
  width: 34px; height: 34px; border-radius: 50%; flex-shrink: 0;
  background: var(--green-l); color: var(--green);
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 600;
}
.review-author .rn { font-size: 14px; font-weight: 600; color: var(--ink); }
.review-author .rt { font-size: 12.5px; color: var(--ink-3); }

/* 主站导流增强 */
.sister-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px; }
.sister {
  display: flex; align-items: center; gap: 12px;
  background: #fff; border: 1px solid var(--line); border-radius: var(--r);
  padding: 15px 16px; transition: all .16s;
}
.sister:hover { border-color: var(--brand); box-shadow: var(--shadow-card); transform: translateY(-2px); }
.sister-ic {
  width: 36px; height: 36px; border-radius: 9px; flex-shrink: 0;
  background: var(--brand-l); color: var(--brand);
  display: flex; align-items: center; justify-content: center;
}
.sister-ic svg { width: 18px; height: 18px; }
.sister-tx { flex: 1; min-width: 0; }
.sister-tx b { display: block; font-size: 14.5px; font-weight: 600; margin-bottom: 2px; }
.sister-tx small { font-size: 12.5px; color: var(--ink-3); line-height: 1.4; display: block; }
.sister-ar { flex-shrink: 0; color: var(--ink-3); }
.sister-ar svg { width: 16px; height: 16px; }
.sister:hover .sister-ar { color: var(--brand); }

/* ---------- 软件库 · 装机方案 · 双入口 ---------- */

/* 双入口卡片 */
.duo { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.duo-card {
  border-radius: 14px; padding: 24px; border: 1px solid var(--line);
  background: #fff; display: flex; flex-direction: column;
  transition: box-shadow .16s, transform .16s, border-color .16s;
}
.duo-card:hover { box-shadow: var(--shadow-card-h); transform: translateY(-2px); }
.duo-a { border-color: #b9d3c8; background: linear-gradient(165deg, #f2f8f5 0%, #ffffff 62%); }
.duo-b { border-color: #d5cdb4; background: linear-gradient(165deg, #fbf8f0 0%, #ffffff 62%); }
.duo-tag {
  display: inline-block; font-size: 12px; font-weight: 500; letter-spacing: .6px;
  padding: 3px 10px; border-radius: 100px; margin-bottom: 12px;
}
.duo-a .duo-tag { background: var(--green-l); color: var(--green); }
.duo-b .duo-tag { background: #f7efd9; color: #7a5b14; }
.duo-ic {
  width: 42px; height: 42px; border-radius: 10px; display: flex;
  align-items: center; justify-content: center; margin-bottom: 13px;
}
.duo-ic svg { width: 21px; height: 21px; }
.duo-a .duo-ic { background: var(--green); color: #fff; }
.duo-b .duo-ic { background: #a8791d; color: #fff; }
.duo-card h3 { font-size: 19px; font-weight: 600; letter-spacing: -.3px; margin-bottom: 7px; }
.duo-card p { font-size: 14.5px; color: var(--ink-2); line-height: 1.65; margin-bottom: 15px; flex: 1; }
.duo-list { list-style: none; margin-bottom: 16px; }
.duo-list li {
  font-size: 13.5px; color: var(--ink-2); line-height: 1.5;
  padding: 4px 0 4px 17px; position: relative;
}
.duo-list li::before {
  content: ""; position: absolute; left: 2px; top: 11px;
  width: 4px; height: 4px; border-radius: 50%; background: var(--ok);
}
.duo-a .duo-list li::before { background: var(--green); }
.duo-b .duo-list li::before { background: #a8791d; }
.duo-card .btn { align-self: flex-start; }

/* 热门装机软件横向条 */
.hot-bar {
  display: flex; flex-wrap: wrap; gap: 8px;
}
.hot-item {
  display: inline-flex; align-items: center; gap: 7px;
  background: #fff; border: 1px solid var(--line); border-radius: 100px;
  padding: 5px 14px 5px 5px; font-size: 13.5px; color: var(--ink-2);
  transition: all .15s;
}
.hot-item:hover { border-color: var(--green); color: var(--green); background: var(--green-l); }
.hot-logo {
  width: 24px; height: 24px; border-radius: 50%; color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 10px; font-weight: 600; letter-spacing: -.3px; flex-shrink: 0;
}
.hot-nm { white-space: nowrap; }

/* ---------- 软件库筛选栏 ---------- */
.sw-bar {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r);
  padding: 14px; margin-bottom: 20px;
}
.sw-chips { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 12px; }
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--bg-2); border: 1px solid var(--line);
  border-radius: 100px; padding: 7px 14px; font-size: 14px;
  color: var(--ink-2); cursor: pointer; font-family: inherit;
  transition: all .15s;
}
.chip i {
  font-style: normal; font-size: 11.5px; color: var(--ink-3);
  background: #fff; border-radius: 100px; padding: 1px 6px; min-width: 20px; text-align: center;
}
.chip:hover { border-color: var(--green); color: var(--green); }
.chip.on { background: var(--green); border-color: var(--green); color: #fff; font-weight: 500; }
.chip.on i { background: rgba(255,255,255,.2); color: #fff; }

.sw-search { position: relative; }
.sw-search input {
  width: 100%; padding: 11px 14px 11px 38px; font-size: 14.5px;
  border: 1px solid var(--line); border-radius: 8px; background: #fff;
  font-family: inherit; color: var(--ink); outline: none; transition: border-color .15s;
}
.sw-search input:focus { border-color: var(--green); }
.sw-search svg {
  position: absolute; left: 12px; top: 50%; margin-top: -8px;
  width: 16px; height: 16px; color: var(--ink-3); pointer-events: none;
}
.sw-stat { font-size: 13.5px; color: var(--ink-3); margin-bottom: 14px; }
.sw-stat b { color: var(--green); font-weight: 600; }

/* ---------- 软件卡片网格 ---------- */
.sw-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(310px, 1fr)); gap: 16px; }
.sw-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r);
  padding: 18px; display: flex; flex-direction: column;
  transition: border-color .16s, box-shadow .16s, transform .16s;
}
.sw-card:hover { border-color: #b9d3c8; box-shadow: var(--shadow-card-h); transform: translateY(-2px); }
.sw-card.rec { border-color: #c9ddd3; }

.sw-top { display: flex; align-items: center; gap: 11px; margin-bottom: 12px; }
.sw-logo {
  width: 40px; height: 40px; border-radius: 9px; flex-shrink: 0; color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 600; letter-spacing: -.4px;
}
/* 三字 logo（火绒、360、驱动）字号缩小，避免在 40px 方块内挤压 */
.sw-card[data-len="3"] .sw-logo { font-size: 11.5px; letter-spacing: -.6px; }
.sw-card[data-len="4"] .sw-logo { font-size: 10.5px; letter-spacing: -.6px; }
.sw-tit { min-width: 0; }
.sw-tit h3 {
  font-size: 15.5px; font-weight: 600; letter-spacing: -.2px;
  display: flex; align-items: center; gap: 6px; flex-wrap: wrap;
}
.sw-rec {
  font-style: normal; font-size: 11px; font-weight: 500;
  background: var(--green-l); color: var(--green);
  padding: 1px 7px; border-radius: 100px;
}
.sw-meta {
  font-size: 12.5px; color: var(--ink-3);
  display: flex; align-items: center; gap: 7px;
}
.sw-meta i { width: 3px; height: 3px; border-radius: 50%; background: var(--line); display: inline-block; }

.sw-desc { font-size: 13.5px; color: var(--ink-2); line-height: 1.6; margin-bottom: 12px; }

.sw-why {
  background: var(--bg-2); border-left: 2.5px solid var(--green);
  border-radius: 0 7px 7px 0; padding: 10px 12px; margin-bottom: 11px;
}
.sw-why b {
  display: block; font-size: 11.5px; color: var(--green);
  font-weight: 600; letter-spacing: .5px; margin-bottom: 4px;
}
.sw-why p { font-size: 13px; color: var(--ink-2); line-height: 1.6; }

.sw-note {
  display: flex; gap: 7px; font-size: 12.5px; color: #7a5b14;
  background: var(--warn-bg); border: 1px solid var(--warn-line);
  padding: 8px 10px; border-radius: 7px; margin-bottom: 12px; line-height: 1.55;
}
.sw-note svg { width: 14px; height: 14px; flex-shrink: 0; margin-top: 2.5px; }

.sw-act { display: flex; gap: 8px; margin-top: auto; }
.sw-btn {
  flex: 1; display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  padding: 10px 14px; border-radius: 8px; font-size: 14.5px; font-weight: 500;
  background: var(--green); color: #fff; transition: all .16s;
}
.sw-btn:hover { background: var(--green-d); color: #fff; }
.sw-btn svg, .sw-site svg { width: 16px; height: 16px; }
.sw-site {
  flex: 0 0 auto; width: 42px; display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--line); border-radius: 8px; color: var(--ink-2); background: #fff;
  transition: all .15s;
}
.sw-site:hover { border-color: var(--green); color: var(--green); background: var(--green-l); }
.sw-src {
  font-size: 11.5px; color: var(--ink-3); margin-top: 9px;
  display: flex; align-items: center; gap: 6px; flex-wrap: wrap;
}
.sw-src span { width: 3px; height: 3px; border-radius: 50%; background: var(--line); }

.sw-empty {
  text-align: center; padding: 54px 20px; color: var(--ink-3);
  border: 1px dashed var(--line); border-radius: var(--r); background: var(--bg-2);
}
.sw-empty b { display: block; font-size: 16px; color: var(--ink-2); margin-bottom: 6px; font-weight: 500; }

/* ---------- 装机方案 ---------- */
.plan-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 16px; }
.plan-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r);
  padding: 20px; display: flex; flex-direction: column;
  transition: box-shadow .16s, transform .16s, border-color .16s;
}
.plan-card:hover { box-shadow: var(--shadow-card-h); transform: translateY(-2px); border-color: #c9ddd3; }
.plan-hd { margin-bottom: 11px; }
.plan-hd h3 { font-size: 17px; font-weight: 600; letter-spacing: -.2px; margin-bottom: 5px; }
.plan-for {
  font-size: 12.5px; color: var(--green); background: var(--green-l);
  display: inline-block; padding: 2px 9px; border-radius: 100px;
}
.plan-desc { font-size: 13.5px; color: var(--ink-2); line-height: 1.6; margin-bottom: 14px; }
.plan-list { list-style: none; margin-bottom: 13px; flex: 1; }
.plan-list li {
  display: flex; align-items: center; gap: 9px;
  font-size: 13.5px; color: var(--ink-2);
  padding: 8px 0; border-bottom: 1px solid var(--line-2);
}
.plan-list li:last-child { border-bottom: 0; }
.plan-dot { width: 7px; height: 7px; border-radius: 2px; flex-shrink: 0; transform: rotate(45deg); }
.plan-nm { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.plan-cs { font-size: 12px; color: var(--ink-3); flex-shrink: 0; }
.plan-tip {
  font-size: 13px; color: var(--ink-2); background: var(--bg-2);
  border-radius: 7px; padding: 10px 12px; margin-bottom: 14px; line-height: 1.6;
}
.plan-tip b { color: var(--ink); font-weight: 600; }
.plan-act { display: flex; }
.plan-act .btn { flex: 1; }

/* ---------- 比较表 ---------- */
.cmp-table { width: 100%; border-collapse: collapse; font-size: 14px; margin: 20px 0 28px; }
.cmp-table th, .cmp-table td { padding: 12px 14px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
.cmp-table th { background: var(--bg-2); font-weight: 600; color: var(--ink); font-size: 13.5px; white-space: nowrap; }
.cmp-table tr:hover td { background: var(--bg-2); }

/* ---------- 操作指南内联样式 ---------- */
.g-step { display: grid; grid-template-columns: 74px 1fr; gap: 20px; margin-bottom: 34px; }
.g-no {
  width: 46px; height: 46px; border-radius: 12px; background: var(--green); color: #fff;
  display: flex; align-items: center; justify-content: center; font-size: 19px; font-weight: 700;
}
.g-body h3 { font-size: 18px; font-weight: 600; margin-bottom: 10px; letter-spacing: -.2px; }
.g-body > p { font-size: 15px; color: var(--ink-2); margin-bottom: 12px; }
.g-ol, .g-ul { margin: 0 0 12px 22px; font-size: 14.5px; color: var(--ink-2); }
.g-ol li, .g-ul li { margin-bottom: 7px; }
.g-ol b, .g-ul b { color: var(--ink); font-weight: 600; }
.g-code {
  display: inline-block; font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 13.5px; background: var(--bg-2); border: 1px solid var(--line);
  padding: 1px 7px; border-radius: 5px; color: var(--ink);
}
.g-shot {
  background: #fbfdfc; border: 1px dashed var(--line); border-radius: 9px;
  padding: 14px 16px; margin-bottom: 12px;
}
.g-shot-cap { font-size: 13px; color: var(--ink-3); margin-top: 8px; display: flex; align-items: center; gap: 6px; }
.g-shot-cap svg { width: 14px; height: 14px; flex-shrink: 0; }
.g-tip {
  background: var(--green-l); border-left: 3px solid var(--green);
  padding: 12px 15px; border-radius: 0 8px 8px 0; font-size: 14px;
  color: var(--ink-2); margin-bottom: 12px; line-height: 1.65;
}
.g-tip b { color: var(--green); font-weight: 600; }
.g-hr { border: 0; border-top: 1px solid var(--line); margin: 44px 0; }
.tbl { width: 100%; border-collapse: collapse; font-size: 14px; margin-bottom: 16px; }
.tbl th, .tbl td { padding: 11px 14px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
.tbl th { background: var(--bg-2); font-weight: 600; color: var(--ink); font-size: 13.5px; white-space: nowrap; }

/* ---------- 打印样式 ---------- */
@media print {
  .topbar, .mbar, .hero-act, .dl-act, .sw-bar, .brand-strip, .nav { display: none; }
  body { font-size: 12pt; color: #000; background: #fff; }
  .sec-alt { background: #fff; }
  a { color: #000; text-decoration: underline; }
}