/* ==========================================================================
   苏州私家调查事务所 — 全新整站设计
   纯手写 CSS，无框架、无外部字体依赖
   ========================================================================== */

:root{
  --ink:#0a1626;
  --ink-2:#102539;
  --ink-3:#17324b;
  --gold:#c8a86b;
  --gold-2:#e3c78f;
  --gold-3:#a9884d;
  --paper:#ffffff;
  --mist:#f5f7fa;
  --mist-2:#eef2f7;
  --line:#e4e9f0;
  --text:#1b2a3b;
  --body:#415468;
  --muted:#74849a;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 18px 50px -24px rgba(10,22,38,.35);
  --shadow-soft:0 10px 30px -18px rgba(10,22,38,.28);
  --container:1200px;
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --serif:"Songti SC","STSong","Noto Serif SC","Source Han Serif SC","SimSun",serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.75;
  color:var(--body);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img,svg{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:600;line-height:1.3}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit}
::selection{background:var(--gold);color:var(--ink)}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ---------- 通用 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:12px;
  color:var(--gold-3);font-size:13px;font-weight:600;letter-spacing:.18em;
  text-transform:uppercase;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--gold)}
.eyebrow.on-dark{color:var(--gold-2)}

.sec{padding:clamp(64px,8vw,104px) 0}
.sec-mist{background:var(--mist)}
.sec-dark{background:var(--ink);color:#b9c8d8}
.sec-dark h2{color:#fff}

.sec-head{max-width:760px;margin-bottom:clamp(36px,4.5vw,56px)}
.sec-head h2{
  font-family:var(--serif);
  font-size:clamp(27px,3.3vw,40px);
  letter-spacing:.02em;
  margin:16px 0 14px;
}
.sec-head p{font-size:16px;color:var(--muted);line-height:1.85}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-head.center .eyebrow{justify-content:center}
.sec-head.center .eyebrow::after{content:"";width:26px;height:1px;background:var(--gold)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:15px 28px;border-radius:10px;font-size:15.5px;font-weight:600;
  border:1px solid transparent;cursor:pointer;
  transition:transform .25s ease,box-shadow .25s ease,background .25s ease,color .25s ease;
  white-space:nowrap;
}
.btn svg{width:18px;height:18px;flex:none}
.btn-gold{
  background:linear-gradient(135deg,var(--gold-2),var(--gold));
  color:#2a1f0c;box-shadow:0 12px 28px -14px rgba(200,168,107,.9);
}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 18px 34px -14px rgba(200,168,107,.95)}
.btn-ghost{border-color:rgba(255,255,255,.28);color:#fff;background:rgba(255,255,255,.03)}
.btn-ghost:hover{background:rgba(255,255,255,.08);transform:translateY(-2px)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:var(--ink-3);transform:translateY(-2px)}
.btn-line{border-color:var(--line);color:var(--text);background:#fff}
.btn-line:hover{border-color:var(--gold);color:var(--gold-3)}

.link-more{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--gold-3);font-size:14.5px;font-weight:600;
}
.link-more svg{width:15px;height:15px;transition:transform .25s ease}
.link-more:hover svg{transform:translateX(4px)}

/* ---------- 顶部信息条 ---------- */
.topbar{
  background:var(--ink);color:#8fa2b8;font-size:13px;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px;height:40px}
.topbar .tb-left,.topbar .tb-right{display:flex;align-items:center;gap:22px;min-width:0}
.topbar a:hover{color:var(--gold-2)}
.topbar .dot{width:6px;height:6px;border-radius:50%;background:var(--gold);box-shadow:0 0 0 3px rgba(200,168,107,.18)}
.topbar .tb-right span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* ---------- 页头 ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(255,255,255,.88);
  -webkit-backdrop-filter:saturate(180%) blur(16px);
  backdrop-filter:saturate(180%) blur(16px);
  border-bottom:1px solid rgba(10,22,38,.07);
  transition:box-shadow .3s ease;
}
.site-header.scrolled{box-shadow:0 12px 30px -24px rgba(10,22,38,.55)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:78px}

.brand{display:flex;align-items:center;gap:12px;flex:none}
.brand-mark{width:42px;height:42px;flex:none}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-family:var(--serif);font-size:19px;color:var(--ink);letter-spacing:.02em;font-weight:700}
.brand-text small{font-size:10px;letter-spacing:.16em;color:var(--muted);margin-top:4px;text-transform:uppercase}

.nav{display:flex;align-items:center;gap:2px}
.nav>li{position:relative}
.nav>li>a{
  display:block;padding:10px 13px;border-radius:8px;
  font-size:15px;color:#2c3d50;font-weight:500;transition:.2s;
}
.nav>li>a:hover{background:var(--mist);color:var(--ink)}
.nav>li.active>a{color:var(--gold-3);font-weight:600}
.nav>li.active>a::after{
  content:"";display:block;width:16px;height:2px;background:var(--gold);
  margin:4px auto -6px;border-radius:2px;
}
.nav .caret{display:inline-block;width:6px;height:6px;border-right:1.4px solid currentColor;border-bottom:1.4px solid currentColor;transform:rotate(45deg);margin-left:6px;margin-bottom:3px;opacity:.6}

.submenu{
  position:absolute;top:calc(100% + 8px);left:0;min-width:236px;
  background:#fff;border:1px solid var(--line);border-radius:12px;
  box-shadow:var(--shadow);padding:8px;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:.22s ease;
}
.has-sub:hover .submenu,.has-sub:focus-within .submenu{opacity:1;visibility:visible;transform:translateY(0)}
.submenu a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 12px;border-radius:8px;font-size:14.5px;color:#3a4c60}
.submenu a:hover{background:var(--mist);color:var(--gold-3)}
.submenu a span{font-size:12px;color:#a9b6c5}

.header-cta{display:flex;align-items:center;gap:14px;flex:none}
.header-phone{display:flex;align-items:center;gap:10px}
.header-phone .ico{
  width:38px;height:38px;border-radius:10px;background:var(--ink);
  display:grid;place-items:center;flex:none;
}
.header-phone .ico svg{width:18px;height:18px;color:var(--gold-2)}
.header-phone .txt{line-height:1.2}
.header-phone .txt small{display:block;font-size:11px;color:var(--muted);letter-spacing:.08em}
.header-phone .txt strong{font-size:17px;color:var(--ink);font-family:var(--sans);letter-spacing:.02em}

.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;
  border-radius:10px;align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:1.6px;background:var(--ink);position:relative;transition:.25s}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:1.6px;background:var(--ink);transition:.25s}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav.open .nav-toggle span{background:transparent}
.nav.open .nav-toggle span::before{top:0;transform:rotate(45deg)}
.nav.open .nav-toggle span::after{top:0;transform:rotate(-45deg)}

/* ---------- 首屏 ---------- */
.hero{
  position:relative;overflow:hidden;color:#d6e2ee;
  background:
    radial-gradient(900px 520px at 82% 12%,rgba(200,168,107,.16),transparent 62%),
    radial-gradient(700px 520px at 8% 92%,rgba(35,86,130,.32),transparent 60%),
    linear-gradient(150deg,#081320 0%,#0c1d2f 46%,#102741 100%);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(760px 560px at 30% 40%,#000 0%,transparent 78%);
  mask-image:radial-gradient(760px 560px at 30% 40%,#000 0%,transparent 78%);
}
.hero-inner{position:relative;display:grid;grid-template-columns:1.04fr .96fr;gap:clamp(32px,5vw,64px);align-items:center;padding:clamp(56px,7vw,96px) 0 clamp(56px,7vw,92px)}
.hero h1{
  color:#fff;font-family:var(--serif);font-weight:700;
  font-size:clamp(34px,4.4vw,58px);line-height:1.22;letter-spacing:.01em;
  margin:20px 0 20px;
}
.hero h1 em{
  font-style:normal;color:var(--gold-2);position:relative;white-space:nowrap;
}
.hero h1 em::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:1px;
  background:linear-gradient(90deg,var(--gold),transparent);
}
.hero .lead{max-width:560px;font-size:16.5px;line-height:1.95;color:#aec0d2}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-note{display:flex;flex-wrap:wrap;gap:18px;margin-top:22px;font-size:13px;color:#8ea3b9}
.hero-note span{display:inline-flex;align-items:center;gap:7px}
.hero-note svg{width:15px;height:15px;color:var(--gold)}

.trust{
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
  margin-top:clamp(32px,4vw,46px);padding-top:26px;
  border-top:1px solid rgba(255,255,255,.12);
}
.trust strong{display:block;font-family:var(--serif);font-size:clamp(24px,2.6vw,32px);color:#fff;line-height:1.1}
.trust strong b{color:var(--gold);font-weight:600;font-size:.62em;margin-left:2px}
.trust span{display:block;font-size:12.5px;color:#8ea3b9;margin-top:7px;letter-spacing:.04em}

.hero-art{position:relative;display:grid;place-items:center}
.art-frame{position:relative;width:100%;max-width:470px;aspect-ratio:1/1}
.art-frame svg{width:100%;height:100%}
.art-ring{transform-origin:260px 260px;animation:spin 46s linear infinite}
.art-ring.rev{animation-direction:reverse;animation-duration:64s}
@keyframes spin{to{transform:rotate(360deg)}}

.art-badge{
  position:absolute;display:flex;align-items:center;gap:9px;
  padding:10px 15px;border-radius:999px;
  background:rgba(13,31,49,.72);border:1px solid rgba(200,168,107,.32);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  color:#e8eef5;font-size:13px;white-space:nowrap;
  box-shadow:0 16px 32px -20px rgba(0,0,0,.8);
}
.art-badge i{width:6px;height:6px;border-radius:50%;background:var(--gold);box-shadow:0 0 0 4px rgba(200,168,107,.16)}
.art-badge.b1{top:8%;left:-2%}
.art-badge.b2{bottom:20%;right:-4%}
.art-badge.b3{bottom:6%;left:6%}
.art-badge{animation:float 7s ease-in-out infinite}
.art-badge.b2{animation-delay:-2.2s}
.art-badge.b3{animation-delay:-4.4s}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}

/* ---------- 服务卡片 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}

.svc-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:32px 28px 28px;transition:.3s ease;overflow:hidden;
}
.svc-card::after{
  content:"";position:absolute;left:0;top:0;height:3px;width:0;
  background:linear-gradient(90deg,var(--gold),var(--gold-2));transition:width .35s ease;
}
.svc-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#d9c9a6}
.svc-card:hover::after{width:100%}
.svc-card .num{
  position:absolute;right:22px;top:18px;font-family:var(--serif);
  font-size:38px;line-height:1;color:#eef2f7;font-weight:700;letter-spacing:-.02em;
}
.svc-card .ico{
  width:52px;height:52px;border-radius:14px;background:var(--ink);
  display:grid;place-items:center;margin-bottom:22px;
}
.svc-card .ico svg{width:24px;height:24px;color:var(--gold-2)}
.svc-card h3{font-size:19.5px;margin-bottom:11px;font-family:var(--serif);letter-spacing:.02em}
.svc-card p{font-size:14.5px;line-height:1.8;color:var(--muted);margin-bottom:20px}
.svc-card .tags{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:18px}
.svc-card .tags span{font-size:12px;color:#6b7c90;background:var(--mist);border-radius:6px;padding:4px 9px}

/* ---------- 关于 ---------- */
.about-split{display:grid;grid-template-columns:1.02fr .98fr;gap:clamp(32px,5vw,64px);align-items:center}
.about-copy h2{font-family:var(--serif);font-size:clamp(26px,3.2vw,38px);margin:16px 0 18px}
.about-copy p{font-size:15.5px;line-height:1.95;color:var(--body);margin-bottom:16px}
.about-copy .sign{display:flex;align-items:center;gap:14px;margin-top:28px;padding-top:22px;border-top:1px solid var(--line)}
.about-copy .sign .seal{
  width:52px;height:52px;border:1px solid var(--gold);border-radius:50%;
  display:grid;place-items:center;color:var(--gold-3);font-family:var(--serif);font-size:20px;
}
.about-copy .sign strong{display:block;color:var(--text);font-size:15px}
.about-copy .sign small{color:var(--muted);font-size:12.5px}

.about-panel{
  position:relative;background:linear-gradient(160deg,var(--ink),var(--ink-3));
  border-radius:20px;padding:38px 34px;color:#b9c8d8;overflow:hidden;
}
.about-panel::before{
  content:"";position:absolute;right:-90px;top:-90px;width:280px;height:280px;
  border-radius:50%;border:1px solid rgba(200,168,107,.22);
  box-shadow:0 0 0 40px rgba(200,168,107,.05),0 0 0 80px rgba(200,168,107,.03);
}
.about-panel h3{color:#fff;font-family:var(--serif);font-size:21px;margin-bottom:6px;position:relative}
.about-panel .sub{font-size:13px;color:var(--gold-2);letter-spacing:.14em;text-transform:uppercase}
.panel-stats{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:rgba(255,255,255,.1);border-radius:14px;overflow:hidden;margin:26px 0}
.panel-stats div{background:#0d1e31;padding:22px 20px}
.panel-stats strong{display:block;font-family:var(--serif);font-size:29px;color:var(--gold-2);line-height:1.1}
.panel-stats span{font-size:12.5px;color:#8ea3b9;display:block;margin-top:6px}
.panel-list{display:grid;gap:12px;position:relative}
.panel-list li{display:flex;gap:10px;font-size:14px;line-height:1.7;color:#a9bccf}
.panel-list svg{width:17px;height:17px;color:var(--gold);flex:none;margin-top:3px}

/* ---------- 优势 ---------- */
.adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.adv{border:1px solid var(--line);border-radius:var(--radius);padding:34px 30px;background:#fff;position:relative}
.adv .no{font-family:var(--serif);font-size:15px;color:var(--gold-3);letter-spacing:.1em;margin-bottom:18px;display:flex;align-items:center;gap:10px}
.adv .no::after{content:"";flex:1;height:1px;background:var(--line)}
.adv h3{font-size:19px;font-family:var(--serif);margin-bottom:11px}
.adv p{font-size:14.5px;line-height:1.85;color:var(--muted)}
.adv .line{width:34px;height:2px;background:var(--gold);margin-top:22px;transition:width .3s}
.adv:hover .line{width:64px}

/* ---------- 流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative}
.steps::before{
  content:"";position:absolute;left:8%;right:8%;top:34px;height:1px;
  background:repeating-linear-gradient(90deg,rgba(200,168,107,.5) 0 6px,transparent 6px 14px);
}
.step{position:relative;padding-top:0}
.step .dot{
  width:68px;height:68px;border-radius:50%;background:#fff;border:1px solid var(--line);
  display:grid;place-items:center;position:relative;z-index:1;margin-bottom:22px;
  font-family:var(--serif);font-size:21px;color:var(--gold-3);transition:.3s;
}
.step:hover .dot{background:var(--ink);color:var(--gold-2);border-color:var(--ink)}
.step h3{font-size:17.5px;margin-bottom:9px;font-family:var(--serif)}
.step p{font-size:14px;line-height:1.8;color:var(--muted)}
.step .en{font-size:11px;letter-spacing:.16em;color:#a5b3c3;text-transform:uppercase;display:block;margin-top:10px}

/* ---------- 案例 ---------- */
.case-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:30px 28px;display:flex;flex-direction:column;transition:.3s;position:relative;overflow:hidden;
}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#d9c9a6}
.case-card .tag{
  align-self:flex-start;font-size:12px;color:var(--gold-3);background:rgba(200,168,107,.12);
  border:1px solid rgba(200,168,107,.28);border-radius:999px;padding:4px 12px;margin-bottom:16px;
}
.case-card h3{font-size:18.5px;font-family:var(--serif);line-height:1.5;margin-bottom:12px}
.case-card p{font-size:14px;line-height:1.85;color:var(--muted);flex:1}
.case-card .result{
  margin-top:20px;padding:12px 14px;background:var(--mist);border-left:2px solid var(--gold);
  font-size:13.5px;color:#40536a;border-radius:0 8px 8px 0;
}
.case-card .result b{color:var(--ink);font-weight:600}

/* ---------- 新闻 ---------- */
.news-list{display:grid;gap:0;border-top:1px solid var(--line)}
.news-row{
  display:grid;grid-template-columns:104px 1fr auto;gap:26px;align-items:center;
  padding:26px 4px;border-bottom:1px solid var(--line);transition:.25s;
}
.news-row:hover{background:linear-gradient(90deg,rgba(200,168,107,.06),transparent 60%);padding-left:14px}
.news-date{font-family:var(--serif);text-align:center;border-right:1px solid var(--line);padding-right:14px}
.news-date strong{display:block;font-size:26px;color:var(--ink);line-height:1}
.news-date span{display:block;font-size:11.5px;color:var(--muted);margin-top:6px;letter-spacing:.08em}
.news-row h3{font-size:17px;font-weight:600;line-height:1.55;margin-bottom:6px;transition:color .2s}
.news-row:hover h3{color:var(--gold-3)}
.news-row p{font-size:13.5px;color:var(--muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.news-row .arrow{
  width:38px;height:38px;border-radius:50%;border:1px solid var(--line);
  display:grid;place-items:center;color:#9aa9ba;transition:.25s;
}
.news-row:hover .arrow{background:var(--ink);border-color:var(--ink);color:var(--gold-2)}
.news-row .arrow svg{width:15px;height:15px}

/* ---------- 区域 ---------- */
.area-wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(28px,4vw,56px);align-items:center}
.area-tags{display:flex;flex-wrap:wrap;gap:10px}
.area-tags span{
  font-size:14px;color:#35485d;background:#fff;border:1px solid var(--line);
  border-radius:8px;padding:9px 16px;transition:.2s;
}
.area-tags span:hover{border-color:var(--gold);color:var(--gold-3);transform:translateY(-2px)}

/* ---------- FAQ ---------- */
.faq{max-width:900px;margin:0 auto;border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 4px;cursor:pointer;list-style:none;
  font-size:16.5px;font-weight:600;color:var(--text);transition:color .2s;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{color:var(--gold-3)}
.faq summary .plus{width:24px;height:24px;flex:none;position:relative}
.faq summary .plus::before,.faq summary .plus::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--gold-3);transform:translate(-50%,-50%);transition:.25s;
}
.faq summary .plus::before{width:13px;height:1.5px}
.faq summary .plus::after{width:1.5px;height:13px}
.faq details[open] summary .plus::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq .ans{padding:0 4px 24px;font-size:15px;line-height:1.95;color:var(--body);max-width:820px}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;color:#d5e1ed;
  background:
    radial-gradient(720px 380px at 78% 20%,rgba(200,168,107,.2),transparent 62%),
    linear-gradient(135deg,#0a1626,#122c46);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:56px 56px;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 60%);
  mask-image:linear-gradient(90deg,transparent,#000 60%);
}
.cta-inner{position:relative;display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center;padding:clamp(48px,6vw,76px) 0}
.cta-inner h2{color:#fff;font-family:var(--serif);font-size:clamp(26px,3.2vw,38px);margin:14px 0 14px}
.cta-inner p{color:#a9bccf;font-size:15.5px;line-height:1.9;max-width:560px}
.cta-phone{text-align:right}
.cta-phone small{display:block;font-size:12.5px;color:#8ea3b9;letter-spacing:.16em;margin-bottom:10px}
.cta-phone a{display:inline-flex;align-items:center;gap:12px;font-family:var(--serif);font-size:clamp(26px,3.4vw,40px);color:var(--gold-2);line-height:1;white-space:nowrap}
.cta-phone a svg{width:30px;height:30px}
.cta-phone em{display:block;font-style:normal;font-size:13px;color:#8ea3b9;margin-top:14px}

/* ---------- 页脚 ---------- */
.site-footer{background:#070f1a;color:#8398ae;font-size:14px}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.25fr;gap:clamp(28px,4vw,52px);padding:clamp(48px,6vw,72px) 0 44px}
.footer-brand .brand-text strong{color:#fff}
.footer-brand .brand-text small{color:#7d90a6}
.footer-brand p{font-size:13.5px;line-height:1.9;color:#7d90a6;margin:20px 0;max-width:320px}
.footer-badges{display:flex;flex-wrap:wrap;gap:8px}
.footer-badges span{font-size:12px;color:#9fb2c6;border:1px solid rgba(255,255,255,.12);border-radius:6px;padding:5px 10px}
.footer-col h4{color:#fff;font-size:14px;letter-spacing:.1em;margin-bottom:18px;font-weight:600}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:13.5px;color:#8398ae;transition:.2s}
.footer-col a:hover{color:var(--gold-2)}
.footer-contact li{display:flex;gap:10px;font-size:13.5px;line-height:1.7;margin-bottom:12px;color:#8398ae}
.footer-contact svg{width:16px;height:16px;color:var(--gold);flex:none;margin-top:3px}
.footer-contact a{color:#fff;font-size:19px;font-family:var(--serif);letter-spacing:.02em}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);padding:22px 0;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:12.5px;color:#647a91;
}
.footer-bottom a:hover{color:var(--gold-2)}

/* ---------- 内页头部 ---------- */
.page-hero{
  position:relative;overflow:hidden;color:#c7d5e4;
  background:
    radial-gradient(760px 420px at 84% 0%,rgba(200,168,107,.17),transparent 62%),
    linear-gradient(140deg,#081320,#0e2237 60%,#143050);
  padding:clamp(46px,6vw,72px) 0 clamp(42px,5vw,62px);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:60px 60px;
  -webkit-mask-image:radial-gradient(700px 380px at 20% 50%,#000,transparent 80%);
  mask-image:radial-gradient(700px 380px at 20% 50%,#000,transparent 80%);
}
.page-hero .inner{position:relative;max-width:820px}
.page-hero h1{color:#fff;font-family:var(--serif);font-size:clamp(28px,3.8vw,44px);margin:16px 0 14px;line-height:1.28}
.page-hero p{color:#a9bccf;font-size:15.5px;line-height:1.9;max-width:680px}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12.5px;color:#8199b1}
.crumb a:hover{color:var(--gold-2)}
.crumb .sep{color:#4f6a85}
.crumb .cur{color:var(--gold-2)}

/* ---------- 正文排版 ---------- */
.prose{max-width:860px;min-width:0}
.prose p,.prose li,.prose blockquote{overflow-wrap:break-word;word-break:break-word}
.prose h2{
  font-family:var(--serif);font-size:clamp(21px,2.4vw,26px);
  margin:44px 0 16px;padding-left:14px;border-left:3px solid var(--gold);
  line-height:1.5;
}
.prose h2:first-child{margin-top:0}
.prose h3{font-size:18.5px;margin:30px 0 12px;font-family:var(--serif)}
.prose p{font-size:15.5px;line-height:2;color:#3c5066;margin-bottom:16px}
.prose ul,.prose ol{margin:0 0 18px;padding-left:2px;display:grid;gap:9px}
.prose li{position:relative;padding-left:18px;font-size:15px;line-height:1.95;color:#3c5066}
.prose ul li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--gold)}
.prose ol{counter-reset:n;list-style:none}
.prose ol li{padding-left:26px}
.prose ol li::before{counter-increment:n;content:counter(n);position:absolute;left:0;top:1px;width:19px;height:19px;border-radius:50%;background:var(--ink);color:var(--gold-2);font-size:11px;display:grid;place-items:center;font-weight:600}
.prose blockquote{
  margin:26px 0;padding:20px 24px;background:var(--mist);border-left:3px solid var(--gold);
  border-radius:0 10px 10px 0;color:#35485d;font-size:15px;line-height:1.95;
}
.prose .note{font-size:13px;color:var(--muted);border-top:1px dashed var(--line);padding-top:16px;line-height:1.9}
.prose a{color:var(--gold-3);font-weight:500;border-bottom:1px solid rgba(200,168,107,.5)}
.prose a:hover{color:var(--ink);border-color:var(--ink)}
.prose table{width:100%;border-collapse:collapse;margin:22px 0;font-size:14.5px}
.prose th,.prose td{border:1px solid var(--line);padding:11px 14px;text-align:left;line-height:1.7}
.prose th{background:var(--mist);color:var(--ink);font-weight:600;white-space:nowrap}
.prose td{color:#3c5066}

.article-meta{display:flex;flex-wrap:wrap;gap:16px;font-size:13px;color:var(--muted);margin-bottom:30px;padding-bottom:20px;border-bottom:1px solid var(--line)}
.article-meta span{display:inline-flex;align-items:center;gap:6px}
.article-meta svg{width:14px;height:14px;color:var(--gold-3)}
.article-wrap{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:clamp(32px,4vw,56px);align-items:start}
.article-aside{position:sticky;top:100px;display:grid;gap:20px}
.aside-card{border:1px solid var(--line);border-radius:var(--radius);padding:26px;background:#fff}
.aside-card.dark{background:linear-gradient(160deg,var(--ink),var(--ink-3));border-color:var(--ink)}
.aside-card h4{font-size:16px;font-family:var(--serif);margin-bottom:10px}
.aside-card.dark h4{color:#fff}
.aside-card p{font-size:13.5px;color:var(--muted);line-height:1.8;margin-bottom:16px}
.aside-card.dark p{color:#a9bccf}
.aside-card .btn{width:100%}
.aside-links{display:grid;gap:11px}
.aside-links a{font-size:13.5px;color:#3c5066;display:flex;gap:8px;line-height:1.6}
.aside-links a::before{content:"";width:4px;height:4px;border-radius:50%;background:var(--gold);flex:none;margin-top:9px}
.aside-links a:hover{color:var(--gold-3)}

/* ---------- 服务详情 ---------- */
.svc-hero-grid{display:grid;grid-template-columns:1fr 340px;gap:clamp(32px,4vw,56px);align-items:start}
.svc-body{min-width:0}
.svc-aside{position:sticky;top:100px;display:grid;gap:18px}
.svc-aside .aside-card{padding:24px}
.svc-aside .price{font-family:var(--serif);font-size:14px;color:var(--gold-3);letter-spacing:.06em;margin-bottom:8px}
.svc-aside .aside-phone{font-family:var(--serif);font-size:24px;color:var(--ink);display:block;margin:6px 0 14px}

.feature-list{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:22px 0}
.feature-list li{
  background:var(--mist);border-radius:10px;padding:15px 17px;
  font-size:14px;line-height:1.7;color:#35485d;display:flex;gap:10px;
  min-width:0;overflow-wrap:break-word;
}
.feature-list li span{min-width:0}
.feature-list svg{width:17px;height:17px;color:var(--gold-3);flex:none;margin-top:2px}

.deliver{display:grid;gap:12px;margin:20px 0}
.deliver li{
  display:flex;gap:14px;align-items:flex-start;padding:16px 18px;
  border:1px solid var(--line);border-radius:10px;background:#fff;
}
.deliver b{display:block;font-size:14.5px;color:var(--text);margin-bottom:3px}
.deliver span{font-size:13px;color:var(--muted);line-height:1.7}
.deliver .no{
  width:28px;height:28px;border-radius:8px;background:var(--ink);color:var(--gold-2);
  display:grid;place-items:center;font-size:12px;flex:none;font-weight:600;
}

/* ---------- 联系 ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.contact-card{
  border:1px solid var(--line);border-radius:var(--radius);padding:32px 28px;background:#fff;
}
.contact-card .ico{width:48px;height:48px;border-radius:12px;background:var(--ink);display:grid;place-items:center;margin-bottom:18px}
.contact-card .ico svg{width:22px;height:22px;color:var(--gold-2)}
.contact-card h3{font-size:17px;font-family:var(--serif);margin-bottom:8px}
.contact-card p{font-size:13.5px;color:var(--muted);line-height:1.8}
.contact-card .big{font-family:var(--serif);font-size:26px;color:var(--ink);display:inline-block;margin-top:8px;letter-spacing:.02em}
.contact-card .big:hover{color:var(--gold-3)}

.info-list{display:grid;gap:0;border-top:1px solid var(--line);margin-top:26px}
.info-list li{display:flex;gap:14px;padding:18px 0;border-bottom:1px solid var(--line);font-size:14.5px;color:#3c5066;line-height:1.8}
.info-list svg{width:18px;height:18px;color:var(--gold-3);flex:none;margin-top:4px}
.info-list b{display:block;color:var(--text);font-size:14px;margin-bottom:2px}

/* ---------- 资质 ---------- */
.cert-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.cert{
  border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px;background:#fff;
  transition:.3s;
}
.cert:hover{border-color:#d9c9a6;box-shadow:var(--shadow-soft);transform:translateY(-3px)}
.cert .seal{
  width:56px;height:56px;border-radius:50%;border:1px solid rgba(200,168,107,.5);
  display:grid;place-items:center;color:var(--gold-3);margin-bottom:18px;
  background:rgba(200,168,107,.07);
}
.cert .seal svg{width:24px;height:24px}
.cert h3{font-size:16.5px;font-family:var(--serif);margin-bottom:8px}
.cert p{font-size:13.5px;line-height:1.8;color:var(--muted)}

/* ---------- 提示 ---------- */
.callout{
  display:flex;gap:14px;padding:20px 22px;border-radius:12px;
  background:rgba(200,168,107,.09);border:1px solid rgba(200,168,107,.3);
  font-size:14px;line-height:1.85;color:#4a3c21;margin:26px 0;
}
.callout svg{width:20px;height:20px;color:var(--gold-3);flex:none;margin-top:2px}
.callout b{color:#2f2614}

/* ---------- 悬浮 ---------- */
.float-call{
  position:fixed;right:26px;bottom:28px;z-index:110;
  display:flex;align-items:center;gap:10px;
  background:var(--ink);color:#fff;border-radius:999px;padding:13px 20px 13px 15px;
  box-shadow:0 18px 34px -16px rgba(10,22,38,.75);
  font-size:14px;font-weight:600;border:1px solid rgba(200,168,107,.35);
  transition:.25s;
}
.float-call:hover{transform:translateY(-3px);background:var(--ink-3)}
.float-call svg{width:18px;height:18px;color:var(--gold-2)}
.float-call .pulse{
  position:absolute;inset:0;border-radius:999px;border:1px solid rgba(200,168,107,.5);
  animation:pulse 2.6s ease-out infinite;pointer-events:none;
}
@keyframes pulse{0%{transform:scale(1);opacity:.7}80%,100%{transform:scale(1.12);opacity:0}}

.mobile-bar{display:none}

/* ---------- 动效 ---------- */
/* 默认可见：只有 JS 成功挂载后才启用淡入，避免脚本失效时内容空白 */
html.js-anim .reveal{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}
html.js-anim .reveal.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .nav>li>a{padding:10px 9px;font-size:14.5px}
  .header-phone .txt strong{font-size:15.5px}
  .hero-inner{grid-template-columns:1fr .85fr}
  .article-wrap{grid-template-columns:minmax(0,1fr)}
  .article-aside{position:static;grid-template-columns:1fr 1fr}
  .svc-hero-grid{grid-template-columns:minmax(0,1fr) 300px}
}

@media (max-width:920px){
  .topbar .tb-left span.hide-sm{display:none}
  .header-phone{display:none}
  .nav-toggle{display:flex}
  .nav{
    position:absolute;left:0;right:0;top:100%;
    flex-direction:column;align-items:stretch;gap:0;
    background:#fff;border-bottom:1px solid var(--line);
    padding:10px 18px 22px;box-shadow:0 24px 40px -28px rgba(10,22,38,.5);
    display:none;max-height:calc(100vh - 78px);overflow-y:auto;
  }
  .nav.open{display:flex}
  .nav>li>a{padding:13px 10px;font-size:15.5px;border-bottom:1px solid var(--mist)}
  .nav>li.active>a::after{display:none}
  .nav>li.active>a{color:var(--gold-3)}
  .submenu{
    position:static;opacity:1;visibility:visible;transform:none;
    box-shadow:none;border:none;padding:0 0 0 12px;min-width:0;display:none;
  }
  .has-sub.open .submenu{display:block}
  .has-sub>a .caret{float:right;margin-top:8px;transition:.2s}
  .has-sub.open>a .caret{transform:rotate(-135deg)}

  .hero-inner{grid-template-columns:1fr;gap:0}
  .hero-art{display:none}
  .hero .lead{max-width:none}
  .trust{grid-template-columns:repeat(4,1fr);gap:10px}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .adv-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr 1fr;gap:28px}
  .steps::before{display:none}
  .about-split,.area-wrap,.cta-inner{grid-template-columns:1fr}
  .cta-phone{text-align:left}
  .footer-top{grid-template-columns:1fr 1fr}
  .svc-hero-grid{grid-template-columns:1fr}
  .svc-aside{position:static;grid-template-columns:1fr 1fr}
  .cert-grid{grid-template-columns:1fr 1fr}
  .contact-grid{grid-template-columns:1fr}
  .float-call{display:none}
  .mobile-bar{
    display:grid;grid-template-columns:1fr 1fr 1fr;
    position:fixed;left:0;right:0;bottom:0;z-index:130;
    background:rgba(255,255,255,.97);border-top:1px solid var(--line);
    -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
    padding:8px 8px calc(8px + env(safe-area-inset-bottom));
    box-shadow:0 -10px 30px -22px rgba(10,22,38,.6);
  }
  .mobile-bar a{
    display:flex;flex-direction:column;align-items:center;gap:3px;
    font-size:11.5px;color:#4a5d72;padding:6px 0;border-radius:8px;
  }
  .mobile-bar a svg{width:19px;height:19px;color:var(--gold-3)}
  .mobile-bar a.main{background:var(--ink);color:#fff}
  .mobile-bar a.main svg{color:var(--gold-2)}
  body{padding-bottom:64px}
}

@media (max-width:640px){
  .container{padding:0 18px}
  .topbar .container{height:auto;padding-top:8px;padding-bottom:8px;flex-wrap:wrap;gap:4px}
  .topbar .tb-left{flex:1 1 100%;justify-content:center}
  .topbar .tb-right{flex:1 1 100%;justify-content:center;gap:12px}
  .topbar .tb-right span.hide-sm{display:none}
  .topbar .tb-left span:last-child{font-size:11.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .hero h1{font-size:clamp(29px,8.2vw,38px)}
  .hero-actions .btn{flex:1;justify-content:center}
  .trust{grid-template-columns:1fr 1fr;gap:16px 10px}
  .grid-3,.grid-2{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .news-row{grid-template-columns:72px 1fr;gap:16px;padding:20px 0}
  .news-row .arrow{display:none}
  .news-date strong{font-size:21px}
  .news-date{padding-right:12px}
  .footer-top{grid-template-columns:1fr;gap:32px}
  .article-aside,.svc-aside{grid-template-columns:1fr}
  .cert-grid{grid-template-columns:1fr}
  .feature-list{grid-template-columns:1fr}
  .art-badge.b1{left:-4%;top:4%}
  .art-badge.b2{right:-2%}
  .art-badge{font-size:12px;padding:8px 12px}
  .sec-head h2{font-size:25px}
  .page-hero h1{font-size:27px}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  html.js-anim .reveal{opacity:1;transform:none}
}