/* ============================================================
   KMSABC.COM — 深圳康明斯发电机组服务中心
   设计语言：黑 · 红 · 米白 / 大圆角 / 编辑式编号 / 与 mtusz.com 明确区分
   ============================================================ */

:root{
  --ink:#12141a;          /* 主黑 */
  --ink-2:#1b1f26;        /* 深面板 */
  --ink-3:#3b4149;        /* 次文字 */
  --ink-4:#6d7681;        /* 辅助文字 */
  --red:#d6121f;          /* 康明斯红 */
  --red-d:#a80d18;
  --red-l:#fdeceb;
  --cream:#faf7f2;        /* 米白底 */
  --sand:#f2ece2;         /* 沙色块 */
  --line:#e7dfd3;
  --line-2:#f0eae0;
  --ok:#1f7a45;
  --amber:#c07a10;
  --r-s:8px;
  --r:14px;
  --r-l:22px;
  --sh:0 2px 12px rgba(18,20,26,.06);
  --sh-m:0 12px 34px rgba(18,20,26,.10);
  --sh-l:0 26px 70px rgba(18,20,26,.16);
  --max:1180px;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  color:var(--ink);background:#fff;line-height:1.75;
  -webkit-font-smoothing:antialiased;font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
.wrap-n{max-width:980px;margin:0 auto;padding:0 24px}

/* ---------- 顶部服务条 ---------- */
.topbar{background:var(--ink);color:#b9bec7;font-size:12.5px;letter-spacing:.02em}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;height:36px;gap:16px}
.topbar b{color:#fff;font-weight:700}
.topbar .tb-right{display:flex;gap:18px;align-items:center}
.topbar a{color:#e6e9ee}
.topbar a:hover{color:#fff}
@media(max-width:820px){.topbar .tb-right span.hide-s{display:none}}

/* ---------- 导航 ---------- */
.nav{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:72px;gap:20px}
.brand{display:flex;align-items:center;gap:11px}
.brand img{height:42px;width:auto}
.brand .bt{line-height:1.25}
.brand .bt b{display:block;font-size:16.5px;font-weight:900;letter-spacing:-.01em}
.brand .bt span{display:block;font-size:11px;color:var(--ink-4);letter-spacing:.06em}
.nav-links{display:flex;gap:26px;font-size:14.5px;font-weight:600}
.nav-links a{color:var(--ink-3);padding:6px 0;position:relative}
.nav-links a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--red);transition:.25s}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after,.nav-links a.on::after{width:100%}
.nav-links a.on{color:var(--red)}
.nav-tel{display:flex;align-items:center;gap:10px}
.nav-tel .num{font-weight:900;font-size:16px;letter-spacing:.01em}
.nav-tel .num span{display:block;font-size:11px;font-weight:600;color:var(--ink-4);letter-spacing:.04em}
.btn-tel{background:var(--red);color:#fff;padding:11px 20px;border-radius:999px;font-weight:800;font-size:14.5px;
  box-shadow:0 6px 18px rgba(214,18,31,.28);white-space:nowrap}
.btn-tel:hover{background:var(--red-d)}
.burger{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:10px;background:#fff;
  align-items:center;justify-content:center;font-size:19px;cursor:pointer}
/* 小屏：顶条只留电话，品牌只留图形 */
.topbar .wrap>div:first-child{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
@media(max-width:680px){
  .topbar .wrap>div:first-child{display:none}
  .topbar .wrap{justify-content:flex-end}
  .brand .bt{display:none}
  .nav-in{height:64px}
}
@media(max-width:1040px){
  .nav-links{display:none;position:absolute;top:72px;left:0;right:0;background:#fff;flex-direction:column;
    gap:0;padding:8px 24px 18px;border-bottom:1px solid var(--line);box-shadow:var(--sh-m)}
  .nav-links.open{display:flex}
  .nav-links a{padding:13px 0;border-bottom:1px solid var(--line-2);font-size:15.5px}
  .burger{display:flex}
  .nav-tel .num{display:none}
  .nav-tel .disp{display:none}
}

/* ---------- Hero ---------- */
.hero{position:relative;background:var(--ink);color:#fff;overflow:hidden;padding:76px 0 0}
.hero::before{content:"";position:absolute;right:-180px;top:-160px;width:640px;height:640px;border-radius:50%;
  background:radial-gradient(circle,rgba(214,18,31,.55),rgba(214,18,31,0) 62%)}
.hero::after{content:"";position:absolute;left:-120px;bottom:-220px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(214,18,31,.16),rgba(214,18,31,0) 65%)}
.hero .wrap{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:52px;align-items:start}
.kicker{display:inline-flex;align-items:center;gap:9px;font-size:12.5px;font-weight:800;letter-spacing:.14em;
  text-transform:uppercase;color:#ff6b70;margin-bottom:18px}
.kicker::before{content:"";width:26px;height:2px;background:var(--red)}
.hero h1{font-size:clamp(30px,4.6vw,54px);line-height:1.14;font-weight:900;letter-spacing:-.02em}
.hero h1 em{font-style:normal;color:#ff4a54;position:relative}
.hero h1 .sm{display:block;font-size:clamp(15px,1.6vw,19px);font-weight:600;color:#a9b0bb;
  letter-spacing:0;margin-top:18px;line-height:1.7}
.hero .sub{margin-top:22px;font-size:15.5px;color:#b9bfc8;max-width:620px}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:26px}
.hero-tags span{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);color:#dfe3e9;
  padding:6px 14px;border-radius:999px;font-size:13px;font-weight:600}
.hero-cta{display:flex;flex-wrap:wrap;gap:13px;margin-top:30px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 26px;border-radius:999px;font-weight:800;font-size:15px;
  transition:.2s}
.btn-red{background:var(--red);color:#fff;box-shadow:0 10px 26px rgba(214,18,31,.32)}
.btn-red:hover{background:var(--red-d);transform:translateY(-1px)}
.btn-ghost{border:1.5px solid rgba(255,255,255,.28);color:#fff}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.06)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:#000}
.btn-line{border:1.5px solid var(--line);color:var(--ink);background:#fff}
.btn-line:hover{border-color:var(--ink)}

/* Hero 报修卡 */
.repair-card{background:#fff;color:var(--ink);border-radius:var(--r-l);padding:28px 26px;box-shadow:var(--sh-l);
  border-top:4px solid var(--red)}
.repair-card h3{font-size:18px;font-weight:900;letter-spacing:-.01em}
.repair-card .rc-sub{font-size:12.5px;color:var(--ink-4);margin-top:5px;margin-bottom:18px}
.rc-row{display:flex;align-items:center;gap:12px;padding:12px 0;border-top:1px dashed var(--line)}
.rc-row .ic{flex:0 0 36px;width:36px;height:36px;border-radius:11px;background:var(--red-l);color:var(--red);
  display:grid;place-items:center;font-size:17px}
.rc-row .tx small{display:block;font-size:11.5px;color:var(--ink-4);letter-spacing:.03em}
.rc-row .tx b{font-size:15.5px;font-weight:900}
.rc-row a.tel{font-size:18px;font-weight:900;color:var(--red)}
.rc-note{margin-top:14px;font-size:11.5px;color:var(--ink-4);line-height:1.6}

/* Hero 底部数据条 */
.hero-stats{position:relative;z-index:2;margin-top:56px;border-top:1px solid rgba(255,255,255,.12);
  display:grid;grid-template-columns:repeat(4,1fr)}
.hero-stats div{padding:22px 24px 26px;border-right:1px solid rgba(255,255,255,.1)}
.hero-stats div:last-child{border-right:0}
.hero-stats b{display:block;font-size:clamp(22px,2.6vw,30px);font-weight:900;color:#fff;letter-spacing:-.02em}
.hero-stats b i{font-style:normal;color:var(--red);font-size:.6em;font-weight:800;margin-left:2px}
.hero-stats span{display:block;font-size:12.5px;color:#9099a5;margin-top:2px}
@media(max-width:940px){
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .hero-stats div:nth-child(2){border-right:0}
  .hero-stats div:nth-child(1),.hero-stats div:nth-child(2){border-bottom:1px solid rgba(255,255,255,.1)}
}

/* ---------- 区块通用 ---------- */
.sec{padding:84px 0}
.sec-cream{background:var(--cream)}
.sec-sand{background:var(--sand)}
.sec-dark{background:var(--ink);color:#fff}
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;gap:28px;margin-bottom:38px;flex-wrap:wrap}
.sec-no{font-size:12.5px;font-weight:900;color:var(--red);letter-spacing:.16em;margin-bottom:10px}
.sec-head h2{font-size:clamp(24px,3.1vw,36px);font-weight:900;letter-spacing:-.02em;line-height:1.25}
.sec-head p{color:var(--ink-3);font-size:14.5px;max-width:560px;margin-top:10px}
.sec-dark .sec-head p,.sec-dark p{color:#a8b0ba}
.sec-dark .sec-head h2{color:#fff}
.link-more{font-size:14px;font-weight:800;color:var(--red);white-space:nowrap}
.link-more::after{content:" →"}
.link-more:hover{color:var(--red-d)}

/* ---------- 服务 bento ---------- */
.bento{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.bento .b{position:relative;border-radius:var(--r-l);padding:30px 26px;background:#fff;border:1px solid var(--line);
  transition:.25s;overflow:hidden;display:flex;flex-direction:column;min-height:270px}
.bento .b:hover{transform:translateY(-3px);box-shadow:var(--sh-m);border-color:#d8cfc0}
.bento .b .n{font-size:12px;font-weight:900;letter-spacing:.14em;color:var(--ink-4)}
.bento .b h3{font-size:20px;font-weight:900;margin:10px 0 6px;letter-spacing:-.01em}
.bento .b .en{font-size:11px;color:var(--ink-4);letter-spacing:.08em;text-transform:uppercase;margin-bottom:14px}
.bento .b ul{margin-top:auto}
.bento .b li{font-size:13.3px;color:var(--ink-3);padding-left:16px;position:relative;line-height:1.65;margin-bottom:5px}
.bento .b li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:2px;background:var(--red)}
.bento .b.red{background:var(--red);border-color:var(--red);color:#fff}
.bento .b.red .n,.bento .b.red .en{color:rgba(255,255,255,.72)}
.bento .b.red h3{color:#fff}
.bento .b.red li{color:rgba(255,255,255,.92)}
.bento .b.red li::before{background:#fff}
.bento .b.dark{background:var(--ink);border-color:var(--ink);color:#fff}
.bento .b.dark .n,.bento .b.dark .en{color:#8b939e}
.bento .b.dark h3{color:#fff}
.bento .b.dark li{color:#c2c9d2}
.bento .b.dark li::before{background:var(--red)}
.bento .b .go{position:absolute;right:22px;top:24px;font-size:18px;color:var(--ink-4);opacity:.5}
.bento .b.red .go,.bento .b.dark .go{color:#fff;opacity:.65}
@media(max-width:1080px){.bento{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.bento{grid-template-columns:1fr}.bento .b{min-height:0}}

/* ---------- 优势 ---------- */
.adv{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.adv .a{padding:26px 24px;border-radius:var(--r);background:#fff;border:1px solid var(--line)}
.adv .a .ic{width:44px;height:44px;border-radius:13px;background:var(--red-l);color:var(--red);
  display:grid;place-items:center;font-size:20px;margin-bottom:14px}
.adv .a h3{font-size:16.5px;font-weight:900;margin-bottom:6px}
.adv .a p{font-size:13.5px;color:var(--ink-3)}
@media(max-width:900px){.adv{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.adv{grid-template-columns:1fr}}

/* ---------- 表格 ---------- */
.tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:20px}
.tab{background:#fff;border:1px solid var(--line);color:var(--ink-3);padding:9px 18px;border-radius:999px;
  font-size:13.5px;font-weight:700;cursor:pointer;transition:.2s}
.tab:hover{border-color:var(--ink-3)}
.tab.on{background:var(--ink);border-color:var(--ink);color:#fff}
.tab-panel{display:none}
.tab-panel.on{display:block}
.tbl-wrap{border:1px solid var(--line);border-radius:var(--r);overflow:auto;background:#fff}
table.tbl{width:100%;border-collapse:collapse;font-size:13.8px;min-width:640px}
table.tbl thead th{background:var(--ink);color:#fff;text-align:left;padding:13px 16px;font-weight:700;
  font-size:12.8px;letter-spacing:.04em;white-space:nowrap}
table.tbl td{padding:12px 16px;border-bottom:1px solid var(--line-2);color:var(--ink-3);vertical-align:top}
table.tbl tbody tr:last-child td{border-bottom:0}
table.tbl tbody tr:nth-child(even){background:#fcfaf7}
table.tbl tbody tr:hover{background:var(--red-l)}
table.tbl td b{color:var(--ink);font-weight:800}
table.tbl .kw{font-weight:900;color:var(--red);white-space:nowrap}
.tbl-note{font-size:12px;color:var(--ink-4);margin-top:10px;line-height:1.7}

/* ---------- 流程 ---------- */
.flow{display:grid;grid-template-columns:repeat(5,1fr);gap:0;position:relative}
.flow .f{padding:0 18px 0 0;position:relative}
.flow .f .dot{width:38px;height:38px;border-radius:50%;background:#fff;border:2px solid var(--red);color:var(--red);
  display:grid;place-items:center;font-weight:900;font-size:15px;margin-bottom:16px;position:relative;z-index:2}
.flow .f:first-child .dot{background:var(--red);color:#fff}
.flow .f::after{content:"";position:absolute;left:38px;right:0;top:19px;height:2px;background:var(--line);z-index:1}
.flow .f:last-child::after{display:none}
.flow .f h3{font-size:15.5px;font-weight:900;margin-bottom:5px}
.flow .f p{font-size:13px;color:var(--ink-3);line-height:1.65}
@media(max-width:900px){.flow{grid-template-columns:1fr;gap:26px}.flow .f::after{left:19px;right:auto;top:38px;bottom:-26px;width:2px;height:auto}}

/* ---------- 区域 ---------- */
.areas{display:grid;grid-template-columns:1.1fr 1fr 1fr;gap:18px}
.area-box{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:24px}
.area-box h3{font-size:16px;font-weight:900;margin-bottom:4px}
.area-box .sm{font-size:12px;color:var(--ink-4);margin-bottom:14px}
.chips{display:flex;flex-wrap:wrap;gap:7px}
.chip{background:var(--sand);color:var(--ink-3);font-size:12.8px;font-weight:600;padding:5px 12px;border-radius:8px}
.area-box.hi{background:var(--ink);border-color:var(--ink);color:#fff}
.area-box.hi h3{color:#fff}
.area-box.hi .sm{color:#8b939e}
.area-box.hi .chip{background:rgba(255,255,255,.09);color:#dde2e8}
@media(max-width:900px){.areas{grid-template-columns:1fr}}

/* ---------- 价格 ---------- */
.price-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.price-item{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px 24px;
  display:flex;justify-content:space-between;gap:18px;align-items:flex-start}
.price-item h3{font-size:15.5px;font-weight:900;margin-bottom:4px}
.price-item p{font-size:13px;color:var(--ink-3);max-width:330px}
.price-item .p{font-weight:900;color:var(--red);font-size:16px;white-space:nowrap;text-align:right}
.price-item .p small{display:block;font-size:11.5px;color:var(--ink-4);font-weight:600}
@media(max-width:760px){.price-grid{grid-template-columns:1fr}}

/* ---------- 案例 ---------- */
.cases{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.case{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:26px;transition:.2s}
.case:hover{box-shadow:var(--sh-m);transform:translateY(-2px)}
.case .cat{display:inline-block;font-size:11.5px;font-weight:800;color:var(--red);background:var(--red-l);
  padding:3px 11px;border-radius:999px;margin-bottom:12px}
.case h3{font-size:16.5px;font-weight:900;line-height:1.5;margin-bottom:8px}
.case p{font-size:13.3px;color:var(--ink-3)}
.case .meta{margin-top:14px;padding-top:12px;border-top:1px dashed var(--line);font-size:12px;color:var(--ink-4);
  display:flex;justify-content:space-between;gap:10px}
@media(max-width:900px){.cases{grid-template-columns:1fr}}

/* ---------- FAQ ---------- */
.faq{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.faq details[open]{border-color:#ddd3c4;box-shadow:var(--sh)}
.faq summary{cursor:pointer;list-style:none;padding:18px 20px;font-weight:800;font-size:14.8px;
  display:flex;justify-content:space-between;gap:14px;align-items:flex-start;line-height:1.55}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--red);font-size:20px;font-weight:900;line-height:1;flex:0 0 auto;transition:.2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq .ans{padding:0 20px 18px;font-size:13.6px;color:var(--ink-3);line-height:1.8}
@media(max-width:860px){.faq{grid-template-columns:1fr}}

/* ---------- CTA / 联系 ---------- */
.cta{background:var(--ink);color:#fff;position:relative;overflow:hidden}
.cta::before{content:"";position:absolute;right:-120px;bottom:-180px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(214,18,31,.4),transparent 60%)}
.cta .wrap{position:relative;z-index:2;display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.cta h2{font-size:clamp(24px,3vw,34px);font-weight:900;letter-spacing:-.02em;line-height:1.3}
.cta p{color:#a8b0ba;margin-top:14px;font-size:14.5px}
.cta .acts{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
@media(max-width:900px){.cta .wrap{grid-template-columns:1fr;gap:30px}}

.form-card{background:#fff;color:var(--ink);border-radius:var(--r-l);padding:30px 28px;box-shadow:var(--sh-l)}
.form-card h3{font-size:18px;font-weight:900}
.form-card .fs{font-size:12.5px;color:var(--ink-4);margin:6px 0 18px}
.field{margin-bottom:13px}
.field label{display:block;font-size:12.5px;font-weight:800;margin-bottom:5px;color:var(--ink-3)}
.field input,.field select,.field textarea{width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:10px;
  font-size:14px;font-family:inherit;color:var(--ink);background:#fcfaf7}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--red);background:#fff}
.field-2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.form-btn{width:100%;background:var(--red);color:#fff;border:0;border-radius:999px;padding:14px;
  font-size:15px;font-weight:900;cursor:pointer;transition:.2s}
.form-btn:hover{background:var(--red-d)}
.form-note{font-size:11.5px;color:var(--ink-4);margin-top:10px;text-align:center;line-height:1.6}
.form-ok{display:none;background:#eef8f1;border:1px solid #bfe3cb;color:#1f6b3d;border-radius:12px;
  padding:12px 14px;font-size:13px;margin-top:12px;line-height:1.7}
.form-ok.show{display:block}

/* ---------- 联系方式表 ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.cbox{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:26px}
.cbox .ic{width:42px;height:42px;border-radius:12px;background:var(--red-l);color:var(--red);display:grid;
  place-items:center;font-size:19px;margin-bottom:12px}
.cbox h3{font-size:15px;font-weight:900;margin-bottom:4px}
.cbox .big{font-size:20px;font-weight:900;color:var(--red);letter-spacing:.01em}
.cbox p{font-size:13.4px;color:var(--ink-3);margin-top:4px}
@media(max-width:760px){.contact-grid{grid-template-columns:1fr}}

/* ---------- 页脚 ---------- */
.footer{background:#0c0e12;color:#8d959f;font-size:13px;padding:56px 0 28px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:34px}
.footer h4{color:#fff;font-size:13.5px;font-weight:800;margin-bottom:14px;letter-spacing:.02em}
.footer a{color:#a9b1bb}
.footer a:hover{color:#fff}
.footer .fbrand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer .fbrand img{height:38px;width:auto}
.footer .fbrand b{color:#fff;font-size:15px;font-weight:900;display:block;line-height:1.3}
.footer .fbrand span{font-size:10.5px;letter-spacing:.08em;color:#6b7480}
.footer li{margin-bottom:8px;font-size:12.8px}
.footer .copy{margin-top:36px;padding-top:20px;border-top:1px solid #1c2029;font-size:12px;color:#5f6772;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
@media(max-width:900px){.foot-grid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.foot-grid{grid-template-columns:1fr}}

/* ---------- 浮动条 ---------- */
.float{position:fixed;right:16px;bottom:16px;z-index:90;display:flex;flex-direction:column;gap:8px}
.float a{background:var(--red);color:#fff;border-radius:999px;padding:12px 18px;font-weight:800;font-size:13.5px;
  box-shadow:0 12px 28px rgba(0,0,0,.24);text-align:center}
.float a.wa{background:#1f9d55}
.float a:hover{filter:brightness(1.06)}
@media(max-width:600px){.float a{padding:11px 14px;font-size:12.8px}}

/* ---------- 文章排版（子页） ---------- */
.page-hero{background:var(--ink);color:#fff;padding:64px 0 0;position:relative;overflow:hidden}
.page-hero::before{content:"";position:absolute;right:-160px;top:-140px;width:560px;height:560px;border-radius:50%;
  background:radial-gradient(circle,rgba(214,18,31,.42),transparent 62%)}
.page-hero .wrap{position:relative;z-index:2}
.crumb{font-size:12.5px;color:#8b939e;margin-bottom:16px}
.crumb a{color:#b7bec8}
.crumb a:hover{color:#fff}
.page-hero h1{font-size:clamp(26px,3.8vw,44px);font-weight:900;letter-spacing:-.02em;line-height:1.2}
.page-hero .lead{color:#b3bac4;font-size:15.5px;max-width:760px;margin-top:16px}
.page-hero .pstats{display:grid;grid-template-columns:repeat(3,1fr);margin-top:40px;
  border-top:1px solid rgba(255,255,255,.12)}
.page-hero .pstats div{padding:20px 0 24px;border-right:1px solid rgba(255,255,255,.1)}
.page-hero .pstats div:last-child{border-right:0}
.page-hero .pstats b{display:block;font-size:24px;font-weight:900;color:#fff}
.page-hero .pstats span{font-size:12.5px;color:#8b939e}
@media(max-width:700px){.page-hero .pstats{grid-template-columns:1fr}.page-hero .pstats div{border-right:0;
  border-bottom:1px solid rgba(255,255,255,.1)}}

.prose h2{font-size:clamp(21px,2.4vw,28px);font-weight:900;letter-spacing:-.01em;margin:0 0 14px}
.prose h3{font-size:17.5px;font-weight:900;margin:26px 0 8px}
.prose p{font-size:14.6px;color:var(--ink-3);margin-bottom:14px;line-height:1.9}
.prose ul.bul{margin:0 0 16px}
.prose ul.bul li{font-size:14.2px;color:var(--ink-3);padding-left:18px;position:relative;margin-bottom:7px}
.prose ul.bul li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;background:var(--red);border-radius:2px}
.prose strong{color:var(--ink);font-weight:800}
.split{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start}
@media(max-width:900px){.split{grid-template-columns:1fr;gap:28px}}
.panel{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:26px}
.panel.dark{background:var(--ink);border-color:var(--ink);color:#fff}
.panel.dark h3{color:#fff}
.panel h3{font-size:16px;font-weight:900;margin-bottom:10px}
.panel li{font-size:13.4px;color:var(--ink-3);margin-bottom:7px;padding-left:16px;position:relative}
.panel li::before{content:"·";position:absolute;left:4px;color:var(--red);font-weight:900}
.panel.dark li{color:#c2c9d2}

/* 统计小卡 */
.mini{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.mini div{background:#fff;border:1px solid var(--line);border-radius:var(--r-s);padding:18px 16px}
.mini b{display:block;font-size:22px;font-weight:900;color:var(--red)}
.mini span{font-size:12px;color:var(--ink-4)}
@media(max-width:760px){.mini{grid-template-columns:repeat(2,1fr)}}

.reveal{opacity:0;transform:translateY(16px);transition:.6s cubic-bezier(.22,.7,.3,1)}
.js .reveal.on{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}}