/* 浦恒传媒官网 — 设计系统 v1.0
   墨蓝(navy) + 宣纸(paper) + 朱砂(cinnabar) + 铜金(gold)
   系统字体，零外部请求，首屏 < 30KB CSS */
:root{
  --navy:#0B2040; --navy-2:#16305A; --navy-3:#24406B;
  --paper:#F7F4EE; --paper-2:#F1ECE2; --white:#fff;
  --cinnabar:#A63A2E; --cinnabar-2:#8E2F25;
  --gold:#B98A3E; --muted:#5A6473; --muted-2:#8A93A1;
  --line:#E3DCCF; --line-2:#D6CDBD;
  --ok:#2F6B4F;
  --serif:"Songti SC","Source Han Serif SC","Noto Serif SC","STSong","SimSun",serif;
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC","Segoe UI",Roboto,sans-serif;
  --r:2px; --maxw:1200px;
  --sh:0 1px 2px rgba(11,32,64,.04),0 12px 32px -12px rgba(11,32,64,.14);
  --sh-lg:0 2px 4px rgba(11,32,64,.05),0 28px 60px -24px rgba(11,32,64,.22);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
body{margin:0;background:var(--paper);color:var(--navy);font-family:var(--sans);
  font-size:17px;line-height:1.85;letter-spacing:.01em;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
p{margin:0 0 1.1em}
h1,h2,h3,h4{font-family:var(--serif);font-weight:600;line-height:1.32;letter-spacing:.01em;margin:0 0 .6em;text-wrap:balance}
h1{font-size:clamp(30px,4.1vw,52px);letter-spacing:.02em}
h2{font-size:clamp(24px,2.7vw,36px)}
h3{font-size:clamp(19px,1.6vw,22px)}
h4{font-family:var(--sans);font-size:16px;font-weight:700;letter-spacing:.04em}
ul,ol{margin:0 0 1.1em;padding-left:1.3em}
li{margin:.35em 0}
strong{font-weight:700;color:var(--navy)}
:focus-visible{outline:3px solid var(--cinnabar);outline-offset:3px}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px}
.grid>*,.hero-in>*,.cta-in>*,.two-col>*,.contact-grid>*,.steps>*,.trust-in>*,.nums>*,.ft-in>*{min-width:0}
.narrow{max-width:820px;margin:0 auto}
.sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.skip{position:absolute;left:16px;top:-60px;z-index:200;background:var(--navy);color:#fff;padding:10px 18px;border-radius:2px;transition:top .2s}
.skip:focus{top:14px}

/* ---------- header ---------- */
.hd{position:sticky;top:0;z-index:100;background:rgba(247,244,238,.86);backdrop-filter:saturate(150%) blur(14px);
  border-bottom:1px solid transparent;transition:border-color .2s,background .2s}
.hd.scrolled{border-bottom-color:var(--line);background:rgba(247,244,238,.96)}
.hd-in{max-width:var(--maxw);margin:0 auto;padding:0 28px;height:76px;display:flex;align-items:center;gap:36px}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand img{width:40px;height:40px}
.brand-tx{display:flex;flex-direction:column;line-height:1.15}
.brand-cn{font-family:var(--serif);font-size:19px;font-weight:600;letter-spacing:.14em}
.brand-en{font-size:9.5px;letter-spacing:.28em;color:var(--muted);text-transform:uppercase;margin-top:2px}
.nav{display:flex;gap:4px;margin-left:auto;align-items:center}
.nav a{position:relative;padding:9px 14px;font-size:15px;color:var(--navy);border-radius:2px;transition:color .18s,background .18s}
.nav a:hover{background:rgba(11,32,64,.05)}
.nav a[aria-current="page"]::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;background:var(--cinnabar)}
.hd-cta{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.tel{font-size:14px;letter-spacing:.02em;color:var(--navy);font-variant-numeric:tabular-nums}
.tel span{display:block;font-size:10px;letter-spacing:.18em;color:var(--muted-2);text-transform:uppercase}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;border-radius:var(--r);
  font-size:15px;font-weight:600;letter-spacing:.04em;border:1px solid transparent;cursor:pointer;
  transition:transform .18s,background .18s,border-color .18s,color .18s,box-shadow .18s}
.btn-p{background:var(--navy);color:#fff}
.btn-p:hover{background:var(--navy-2);transform:translateY(-1px);box-shadow:var(--sh)}
.btn-g{background:var(--cinnabar);color:#fff}
.btn-g:hover{background:var(--cinnabar-2);transform:translateY(-1px)}
.btn-o{border-color:var(--line-2);color:var(--navy);background:transparent}
.btn-o:hover{border-color:var(--navy);background:rgba(11,32,64,.04)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.burger{display:none;width:44px;height:44px;border:1px solid var(--line-2);background:none;border-radius:2px;align-items:center;justify-content:center;cursor:pointer}
.burger i{display:block;width:18px;height:1.5px;background:var(--navy);position:relative}
.burger i::before,.burger i::after{content:"";position:absolute;left:0;width:18px;height:1.5px;background:var(--navy)}
.burger i::before{top:-6px}.burger i::after{top:6px}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);
  background:
    radial-gradient(900px 520px at 82% -8%,rgba(185,138,62,.10),transparent 62%),
    radial-gradient(760px 460px at 6% 104%,rgba(166,58,46,.07),transparent 60%),
    var(--paper)}
.hero::after{content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(11,32,64,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(11,32,64,.045) 1px,transparent 1px);
  background-size:88px 88px;-webkit-mask-image:radial-gradient(70% 60% at 50% 40%,#000,transparent);mask-image:radial-gradient(70% 60% at 50% 40%,#000,transparent)}
.hero-in{position:relative;z-index:1;max-width:var(--maxw);margin:0 auto;padding:96px 28px 88px;
  display:grid;grid-template-columns:1.15fr .85fr;gap:64px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12.5px;letter-spacing:.16em;color:var(--cinnabar);
  text-transform:uppercase;margin-bottom:26px;font-weight:600}
.eyebrow::before{content:"";width:34px;height:1px;background:currentColor;display:block}
.hero h1{margin-bottom:22px}
.hero h1 em{font-style:normal;position:relative;white-space:nowrap}
.hero h1 em::after{content:"";position:absolute;left:0;right:0;bottom:6px;height:9px;background:rgba(185,138,62,.28);z-index:-1}
.lede{font-size:18.5px;line-height:1.9;color:#39445A;max-width:36em}
.hero-act{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-note{margin-top:26px;font-size:13.5px;color:var(--muted);display:flex;flex-wrap:wrap;gap:6px 22px}
.hero-note b{color:var(--navy);font-weight:700}
.mark-card{position:relative;background:var(--navy);color:#fff;padding:38px 36px;border-radius:2px;box-shadow:var(--sh-lg)}
.mark-card::before{content:"";position:absolute;inset:0;border:1px solid rgba(255,255,255,.14);pointer-events:none;margin:9px}
.mark-card .mc-top{display:flex;justify-content:space-between;align-items:center;font-size:11px;letter-spacing:.22em;color:rgba(255,255,255,.55);text-transform:uppercase;margin-bottom:30px}
.mark-card .mc-k{font-family:var(--serif);font-size:22px;line-height:1.5;margin:0 0 26px}
.mark-card .mc-k b{color:#E3C08A}
.mc-list{display:grid;gap:14px;margin:0;padding:0;list-style:none}
.mc-list li{display:flex;justify-content:space-between;gap:16px;padding-bottom:12px;border-bottom:1px solid rgba(255,255,255,.16);font-size:14px;margin:0}
.mc-list span{color:rgba(255,255,255,.62)}
.mc-list b{font-weight:600;font-variant-numeric:tabular-nums;white-space:nowrap}

/* ---------- strips ---------- */
.trust{border-bottom:1px solid var(--line);background:var(--paper)}
.trust-in{max-width:var(--maxw);margin:0 auto;padding:26px 28px;display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.trust dl{margin:0}
.trust dt{font-size:11px;letter-spacing:.2em;color:var(--muted-2);text-transform:uppercase}
.trust dd{margin:6px 0 0;font-family:var(--serif);font-size:21px}
.trust dd small{font-family:var(--sans);font-size:12.5px;color:var(--muted);letter-spacing:.04em}

/* ---------- sections ---------- */
.sec{padding:96px 0}
.sec-pt{padding-top:88px}
.sec-tight{padding:72px 0}
.sec-bg{background:var(--white)}
.sec-paper2{background:var(--paper-2)}
.sec-navy{background:var(--navy);color:#fff}
.sec-hd{display:flex;align-items:flex-end;justify-content:space-between;gap:40px;margin-bottom:52px}
.sec-hd .lh{max-width:44em}
.sec-hd .more{flex:0 0 auto;font-size:14.5px;color:var(--cinnabar);border-bottom:1px solid currentColor;padding-bottom:2px;white-space:nowrap}
.sec-hd .more:hover{color:var(--cinnabar-2)}
.sec-sub{font-size:11.5px;letter-spacing:.22em;color:var(--muted-2);text-transform:uppercase;margin-bottom:14px;font-weight:600}
.sec-navy .sec-sub{color:rgba(255,255,255,.5)}
.sec-navy p{color:rgba(255,255,255,.78)}
.lead{font-size:18px;color:#3C4759;line-height:1.9}
.sec-navy .lead{color:rgba(255,255,255,.8)}

/* ---------- cards ---------- */
.grid{display:grid;gap:24px}
.g3{grid-template-columns:repeat(3,1fr)}
.g2{grid-template-columns:repeat(2,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--white);border:1px solid var(--line);border-radius:2px;padding:32px 30px;transition:transform .22s,box-shadow .22s,border-color .22s;position:relative}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh);border-color:var(--line-2)}
.card h3{margin-bottom:10px}
.card p{font-size:15.5px;color:#4A5568;margin:0}
.card .n{font-family:var(--serif);font-size:13px;color:var(--gold);letter-spacing:.12em;display:block;margin-bottom:18px}
.card-link{display:block}
.card-link:hover{transform:translateY(-3px);box-shadow:var(--sh);border-color:var(--line-2)}
.svc-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:20px;padding:0;list-style:none}
.svc-tags li{margin:0;font-size:12px;letter-spacing:.02em;color:var(--navy);background:var(--paper-2);border:1px solid var(--line);padding:3px 9px;border-radius:2px}
.card-arrow{margin-top:22px;font-size:13.5px;color:var(--cinnabar);display:inline-flex;align-items:center;gap:6px}

/* method */
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid rgba(255,255,255,.18)}
.steps > div{padding:34px 26px 0 0;position:relative}
.steps > div::before{counter-increment:s;content:"0" counter(s);font-family:var(--serif);font-size:13px;color:#D8B074;letter-spacing:.1em;display:block;margin-bottom:16px}
.steps h3{color:#fff;font-size:20px;margin-bottom:10px}
.steps p{font-size:14.5px;margin:0;color:rgba(255,255,255,.7)}

/* cases */
.case{position:relative;overflow:hidden;background:var(--navy);color:#fff;border-radius:2px;display:block}
.case img{width:100%;aspect-ratio:3/2;object-fit:cover;transition:transform .5s ease;opacity:.9}
.case:hover img{transform:scale(1.04)}
.case-bd{position:absolute;inset:auto 0 0 0;padding:26px 24px 22px;background:linear-gradient(to top,rgba(6,18,36,.94),rgba(6,18,36,.55) 55%,transparent)}
.case-tag{font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:#E3C08A;margin-bottom:8px}
.case-bd h3{color:#fff;font-size:19.5px;margin:0}
.case-bd p{margin:6px 0 0;font-size:13.5px;color:rgba(255,255,255,.72)}
.case-meta{display:flex;gap:14px;flex-wrap:wrap;margin-top:14px;font-size:12px;color:rgba(255,255,255,.62);border-top:1px solid rgba(255,255,255,.16);padding-top:12px}

/* article list */
.post{display:grid;grid-template-columns:120px 1fr;gap:26px;padding:26px 0;border-bottom:1px solid var(--line);align-items:start}
.post time{font-size:12.5px;color:var(--muted-2);letter-spacing:.06em;padding-top:6px;font-variant-numeric:tabular-nums}
.post h3{margin:0 0 6px;font-size:20px}
.post h3 a:hover{color:var(--cinnabar)}
.post p{margin:0;font-size:14.5px;color:var(--muted)}

/* prose */
.prose{font-size:17.5px;line-height:1.95;color:#2C3547}
.prose h2{font-size:clamp(22px,2.1vw,28px);margin:2.2em 0 .7em;padding-top:.2em;border-top:1px solid var(--line)}
.prose h2:first-child{border-top:0;margin-top:0;padding-top:0}
.prose h3{margin:1.8em 0 .6em}
.prose blockquote{margin:1.8em 0;padding:20px 26px;border-left:3px solid var(--gold);background:var(--paper-2);font-family:var(--serif);font-size:19px;color:var(--navy)}
.prose blockquote p:last-child{margin:0}
.prose table{width:100%;border-collapse:collapse;margin:1.8em 0;font-size:15px}
.prose th,.prose td{border-bottom:1px solid var(--line);padding:12px 10px;text-align:left;vertical-align:top}
.prose th{background:var(--paper-2);font-size:13px;letter-spacing:.06em;color:var(--navy);font-weight:700;white-space:nowrap}
.prose td{color:#3C4759}
.prose ul,.prose ol{padding-left:1.25em}
.prose li{margin:.5em 0}
.prose .kbd{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:13.5px;background:var(--paper-2);border:1px solid var(--line);padding:1px 6px;border-radius:2px}
.prose hr{border:0;border-top:1px solid var(--line);margin:2.6em 0}

/* answer box / GEO 摘要块 */
.answer{background:var(--white);border:1px solid var(--line);border-left:3px solid var(--cinnabar);padding:26px 30px;margin:0 0 34px}
.answer .k{font-family:var(--sans);font-size:11.5px;letter-spacing:.18em;color:var(--cinnabar);margin:0 0 12px;font-weight:700}
.answer p{margin:0;font-size:16.5px;line-height:1.9;color:#2C3547}
.answer p+p{margin-top:.8em}

/* data table */
.dt{width:100%;border-collapse:collapse;font-size:15.5px;background:var(--white);border:1px solid var(--line)}
.dt caption{text-align:left;font-size:12.5px;color:var(--muted);padding:0 0 10px}
.dt th{background:var(--navy);color:#fff;font-size:12.5px;letter-spacing:.1em;font-weight:600;padding:13px 16px;text-align:left;white-space:nowrap}
.dt td{padding:14px 16px;border-bottom:1px solid var(--line);color:#39445A;vertical-align:top}
.dt tr:last-child td{border-bottom:0}
.dt td b{color:var(--navy)}

/* faq */
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line);padding:6px 0}
.faq summary{cursor:pointer;list-style:none;padding:20px 40px 20px 0;position:relative;font-size:17px;font-weight:600;color:var(--navy);font-family:var(--serif)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);font-size:22px;font-weight:400;color:var(--gold);font-family:var(--sans)}
.faq details[open] summary::after{content:"−"}
.faq .a{padding:0 40px 20px 0;font-size:15.8px;color:#3C4759;line-height:1.9}
.faq .a p:last-child{margin:0}

/* cta band */
.cta{background:linear-gradient(135deg,var(--navy),#132F58 55%,#1C3E6E);color:#fff;position:relative;overflow:hidden}
.cta::after{content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border:1px solid rgba(255,255,255,.12);border-radius:50%}
.cta-in{position:relative;z-index:1;max-width:var(--maxw);margin:0 auto;padding:78px 28px;display:grid;grid-template-columns:1.3fr .7fr;gap:48px;align-items:center}
.cta h2{color:#fff;margin-bottom:14px}
.cta p{color:rgba(255,255,255,.76);margin:0;font-size:16.5px}
.cta-act{display:flex;flex-direction:column;gap:12px;align-items:stretch}
.cta-act .btn{height:52px}
.cta-act .btn-l{background:#fff;color:var(--navy)}
.cta-act .btn-l:hover{background:#F0EADC}
.cta-act small{font-size:12.5px;color:rgba(255,255,255,.55);text-align:center;letter-spacing:.04em}

/* footer */
.ft{background:#081A33;color:rgba(255,255,255,.66);font-size:14px;padding:64px 0 0}
.ft-in{max-width:var(--maxw);margin:0 auto;padding:0 28px;display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:44px}
.ft .ft-h{color:#fff;font-family:var(--sans);font-size:12px;letter-spacing:.2em;text-transform:uppercase;margin:0 0 18px;font-weight:600}
.ft ul{list-style:none;padding:0;margin:0}
.ft li{margin:0 0 10px}
.ft a:hover{color:#E3C08A}
.ft-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.ft-brand img{width:38px;height:38px;filter:brightness(0) invert(1);opacity:.95}
.ft-brand b{font-family:var(--serif);font-size:18px;color:#fff;letter-spacing:.14em;font-weight:600}
.ft p{color:rgba(255,255,255,.58);font-size:13.5px;line-height:1.85}
.ft .nap{font-style:normal;line-height:1.9}
.ft .nap b{color:rgba(255,255,255,.9);font-weight:600}
.ft-bot{max-width:var(--maxw);margin:48px auto 0;padding:22px 28px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px 28px;justify-content:space-between;font-size:12.5px;color:rgba(255,255,255,.44)}
.ft-bot a:hover{color:#E3C08A}

/* breadcrumb */
.bc{font-size:12.5px;color:var(--muted);padding:18px 0 0;letter-spacing:.02em}
.bc ol{list-style:none;display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:0}
.bc li{margin:0;display:flex;gap:8px;align-items:center}
.bc li+li::before{content:"/";color:var(--line-2)}
.bc a:hover{color:var(--cinnabar)}

/* page hero */
.ph{background:var(--paper);border-bottom:1px solid var(--line);padding:0 0 56px}
.ph-in{max-width:var(--maxw);margin:0 auto;padding:34px 28px 0}
.ph h1{max-width:24em;margin-bottom:18px}
.ph .lede{font-size:18px;max-width:44em}

/* kpi / numbers */
.nums{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;border-top:1px solid var(--line);padding-top:34px}
.nums div b{display:block;font-family:var(--serif);font-size:clamp(30px,3vw,42px);line-height:1.1;color:var(--navy)}
.nums div b i{font-style:normal;font-size:.5em;color:var(--cinnabar);margin-left:2px}
.nums div span{font-size:13.5px;color:var(--muted)}

/* contact */
.contact-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:start}
.info-block{border-top:1px solid var(--line);padding:22px 0}
.info-block dt{font-size:11.5px;letter-spacing:.18em;color:var(--muted-2);text-transform:uppercase;margin-bottom:6px}
.info-block dd{margin:0;font-size:17px}
.form-row{margin-bottom:18px}
.form-row label{display:block;font-size:13px;letter-spacing:.04em;color:var(--muted);margin-bottom:7px}
.form-row input,.form-row textarea,.form-row select{width:100%;padding:12px 14px;font:inherit;font-size:15px;color:var(--navy);
  background:var(--white);border:1px solid var(--line-2);border-radius:2px;transition:border-color .18s,box-shadow .18s}
.form-row input:focus,.form-row textarea:focus,.form-row select:focus{outline:none;border-color:var(--navy);box-shadow:0 0 0 3px rgba(11,32,64,.08)}
.form-row textarea{min-height:120px;resize:vertical}
.form-note{font-size:12.5px;color:var(--muted-2);line-height:1.8}

/* misc */
.pill{display:inline-block;font-size:12px;letter-spacing:.06em;padding:4px 10px;border:1px solid var(--line-2);border-radius:2px;color:var(--muted);background:var(--white)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 28px;padding:0;list-style:none}
.tag-row li{margin:0}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:56px}
.two-col h2{margin-top:0}
.aside-box{background:var(--white);border:1px solid var(--line);padding:28px;position:sticky;top:96px}
.aside-box h3{font-family:var(--sans);font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:16px}
.aside-box ul{list-style:none;padding:0;margin:0;font-size:14.5px}
.aside-box li{padding:10px 0;border-top:1px solid var(--line);margin:0}
.aside-box li:first-child{border-top:0}
.timeline{list-style:none;padding:0;margin:0;border-left:1px solid var(--line-2)}
.timeline li{position:relative;padding:0 0 28px 28px;margin:0}
.timeline li::before{content:"";position:absolute;left:-4px;top:9px;width:7px;height:7px;background:var(--cinnabar);border-radius:50%}
.timeline b{display:block;font-size:12px;letter-spacing:.14em;color:var(--muted-2);text-transform:uppercase;margin-bottom:4px}
.mobile-only{display:none}

/* ---------- responsive ---------- */
@media (max-width:1080px){
  .hero-in{grid-template-columns:minmax(0,1fr);gap:44px;padding:72px 28px 64px}
  .mark-card{max-width:520px}
  .ft-in{grid-template-columns:1fr 1fr;gap:36px}
  .g4{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr);gap:0}
  .steps > div{padding-top:28px}
  .cta-in{grid-template-columns:1fr;gap:32px}
  .contact-grid,.two-col{grid-template-columns:1fr;gap:36px}
}
@media (max-width:860px){
  body{font-size:16.5px;overflow-x:hidden}
  .mark-card{max-width:100%}
  .hero h1{font-size:clamp(26px,6.4vw,34px)}
  .nav{display:none;position:fixed;inset:76px 0 auto 0;background:var(--paper);flex-direction:column;align-items:stretch;
       gap:0;padding:12px 20px 26px;border-bottom:1px solid var(--line);box-shadow:var(--sh-lg)}
  .nav.open{display:flex}
  .nav a{padding:14px 4px;border-bottom:1px solid var(--line);font-size:16px}
  .nav a[aria-current="page"]::after{display:none}
  .nav a[aria-current="page"]{color:var(--cinnabar)}
  .burger{display:flex;margin-left:auto}
  .hd-cta .tel{display:none}
  .hd-in{gap:16px;height:68px}
  .nav{top:68px}
  .trust-in{grid-template-columns:repeat(2,1fr);gap:18px}
  .g3,.g2{grid-template-columns:1fr}
  .sec{padding:68px 0}
  .sec-hd{flex-direction:column;align-items:flex-start;gap:18px;margin-bottom:36px}
  .nums{grid-template-columns:repeat(2,1fr);gap:24px}
  .post{grid-template-columns:1fr;gap:6px}
  .post time{padding-top:0}
  .ft-in{grid-template-columns:1fr;gap:32px}
  .ft{padding-top:48px}
  .prose table,.dt{font-size:14px}
  .prose th,.prose td,.dt th,.dt td{padding:10px 8px}
}
@media (max-width:560px){
  .wrap,.hd-in,.hero-in,.trust-in,.ft-in,.ft-bot,.cta-in,.ph-in{padding-left:20px;padding-right:20px}
  .prose table,.dt{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch}
  .prose th,.prose td,.dt th,.dt td{white-space:nowrap}
  .hero-in{padding-top:52px}
  .mark-card{padding:28px 24px}
  .steps{grid-template-columns:1fr}
  .nums{grid-template-columns:1fr 1fr}
  .hero-act .btn{width:100%}
  .card{padding:26px 22px}
  .desktop-only{display:none}
  .mobile-only{display:block}
}
@media print{.hd,.cta,.ft,.hero::after{display:none}body{background:#fff}}

/* ---- 事实页 / 问答页 ---- */
.facts{display:grid;gap:16px;margin-top:6px}
.fact{background:var(--white);border:1px solid var(--line);border-left:3px solid var(--gold);padding:24px 26px;border-radius:2px}
.fact .fk{font-size:11.5px;letter-spacing:.2em;color:var(--cinnabar);text-transform:uppercase;font-weight:600;margin:0 0 8px}
.fact .fv{font-family:var(--serif);font-size:clamp(24px,2.4vw,31px);line-height:1.3;color:var(--navy);margin:0 0 12px}
.fact p{margin:0;font-size:15.5px;line-height:1.9;color:#39445A}
.fact .src{margin-top:12px;padding-top:10px;border-top:1px dashed var(--line);font-size:12.5px;color:var(--muted-2)}
.qa-item{border-bottom:1px solid var(--line);padding:26px 0}
.qa-item .qa-n{font-family:var(--serif);font-size:13px;color:var(--gold);letter-spacing:.14em;display:block;margin-bottom:8px}
.qa-item h3{font-size:clamp(18px,1.7vw,21px);margin:0 0 10px}
.qa-item p{margin:0;font-size:16px;line-height:1.9;color:#39445A}
.qa-item a{color:var(--cinnabar);border-bottom:1px solid rgba(166,58,46,.35)}
.qa-item a:hover{border-bottom-color:var(--cinnabar)}
@media (max-width:640px){
  .fact{padding:20px 18px}
  .qa-item{padding:22px 0}
}

/* ---- 权威信源区块 ---- */
.src-note{margin:34px 0 8px;border:1px solid var(--line);border-left:3px solid var(--navy);background:var(--white);padding:20px 24px;border-radius:2px}
.src-note .k{font-size:11.5px;letter-spacing:.18em;color:var(--navy);text-transform:uppercase;font-weight:700;margin:0 0 12px}
.src-note ul{margin:0;padding-left:20px}
.src-note li{font-size:14.5px;line-height:1.85;color:#39445A;margin:0}
.src-note a{color:var(--navy);border-bottom:1px solid var(--line-2)}
.src-note a:hover{color:var(--cinnabar);border-bottom-color:var(--cinnabar)}
.svc-note{margin-top:30px;padding:18px 22px;background:var(--paper-2);border:1px solid var(--line);font-size:15px;line-height:1.9;color:#39445A}
.svc-note a{color:var(--cinnabar);border-bottom:1px solid rgba(166,58,46,.35)}