/* ============================================================
   臻恩化工 · 前台工业大气设计系统（独立文件，仅供公开站）
   与后台 style.css 完全分离：公开站加载本文件，后台保持不变。
   配色：深蓝 + 浅蓝 + 安全琥珀；版式：大气尺度 + 序号水印 + 玻璃卡。
   ============================================================ */
:root{
  --navy:#0e2e5c; --navy-2:#123a6a; --navy-700:#1a4f8a; --navy-900:#0a2447;
  --brand:#2f8fe8; --brand-400:#5cb3ff; --brand-600:#1a6fd0; --brand-50:#e8f2ff; --brand-100:#d3e8ff;
  --amber:#e8a33d; --amber-500:#f0b257; --amber-50:#fdf3e3;
  --slate:#5a6b82; --muted:#6b7d8c;
  --bg:#f3f7fc; --bg-soft:#eef4fc; --mist:#e9f1fb; --panel:#ffffff;
  --line:#dbe6f0; --line-2:#cfe0ee;
  --ok:#1f7fd6; --err:#e11d48;
  --ink:#16304f; --ink-2:#274468;
  --r:14px; --r-lg:22px; --r-sm:10px;
  --sh:0 14px 34px rgba(14,46,92,.10); --sh-lg:0 26px 60px rgba(14,46,92,.16);
  --sh-blue:0 22px 54px rgba(47,143,232,.22);
  --container:1320px; --header-h:78px; --topbar-h:40px;
  --font:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.7;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
ul{list-style:none}
.container{max-width:var(--container);margin:0 auto;padding:0 24px;width:100%}
.muted{color:var(--muted)} .small{font-size:13px}
.center{text-align:center}
.eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:1px;color:var(--brand);
  background:var(--brand-50);border:1px solid rgba(47,143,232,.18);padding:5px 14px;border-radius:999px}
/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 26px;
  border-radius:999px;font-weight:700;font-size:15px;cursor:pointer;border:1.5px solid transparent;
  transition:.25s;white-space:nowrap}
.btn-lg{padding:16px 34px;font-size:16px}
.btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-400));color:#fff;box-shadow:var(--sh-blue)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 30px 64px rgba(47,143,232,.30)}
.btn-ghost{background:#fff;color:var(--navy);border-color:rgba(255,255,255,.7)}
.btn-ghost:hover{background:var(--brand-50)}
.btn-outline{border-color:var(--brand);color:var(--brand);background:transparent}
.btn-outline:hover{background:var(--brand-50)}
.btn-amber{background:linear-gradient(135deg,var(--amber),var(--amber-500));color:#3a2406;box-shadow:0 18px 40px rgba(232,163,61,.28)}
.btn-amber:hover{transform:translateY(-2px)}

/* ===== 顶部信息条 ===== */
.topbar{background:var(--navy);color:#cfe3ec;font-size:13.5px;height:var(--topbar-h);
  display:flex;align-items:center;position:relative;z-index:60}
.topbar::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:linear-gradient(90deg,var(--brand),var(--amber))}
.topbar .container{display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap}
.tb-left,.tb-right{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.tb-item b{color:#fff} .tb-item .i{margin-right:4px}
.tb-tag{color:var(--amber-500);font-weight:700;margin-right:4px}
.tb-tel{color:#fff;font-weight:700}
/* 中屏起隐藏地域项（4 项 + 双热线一行放不下；热线条保留） */
@media (max-width:1080px){.tb-hide-md{display:none}}

/* ===== Header ===== */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);
  backdrop-filter:saturate(160%) blur(10px);border-bottom:1px solid var(--line);box-shadow:0 2px 18px rgba(14,46,92,.05)}
.inner.container{display:flex;align-items:center;gap:18px;height:var(--header-h)}
.logo{display:flex;align-items:center;gap:12px}
.logo-mark{width:42px;height:42px;border-radius:12px;background:linear-gradient(135deg,var(--navy),var(--brand));
  color:#fff;display:grid;place-items:center;font-weight:800;font-size:20px;box-shadow:var(--sh-blue);flex:none}
.logo-text b{display:block;font-size:18px;color:var(--navy);letter-spacing:.5px;line-height:1.1}
.logo-text span{font-size:11px;color:var(--slate);letter-spacing:2px}
.nav{display:flex;gap:4px;margin-left:auto}
.nav a{padding:10px 15px;border-radius:10px;font-weight:600;color:var(--ink-2);font-size:15px;transition:.2s}
.nav a:hover,.nav a.active{background:var(--brand-50);color:var(--brand)}
.header-cta{margin-left:6px}
.menu-btn{display:none;background:none;border:0;font-size:26px;color:var(--navy);margin-left:auto;cursor:pointer}

/* ===== Hero ===== */
.hero{position:relative;min-height:min(100vh,1020px);
  background:radial-gradient(1200px 600px at 80% -10%,rgba(92,179,255,.30),transparent 60%),
             linear-gradient(152deg,#0a2447 0%,#123a6a 46%,#2f8fe8 100%);
  color:#eaf3ff;overflow:hidden;display:flex;align-items:center}
.hero::before{content:"";position:absolute;right:-160px;top:-140px;width:780px;height:780px;border-radius:50%;
  background:radial-gradient(circle,rgba(92,179,255,.40),rgba(92,179,255,0) 65%);filter:blur(8px)}
.hero::after{content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:46px 46px;mask-image:radial-gradient(circle at 70% 30%,#000,transparent 75%);opacity:.5}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.25fr .85fr;gap:56px;align-items:center;padding:64px 0}
.hero .eyebrow{color:#c7e2ff;background:rgba(92,179,255,.16);border-color:rgba(92,179,255,.4)}
.hero h1{font-size:clamp(40px,5.8vw,80px);line-height:1.08;font-weight:800;letter-spacing:-.02em;margin:18px 0 22px}
.hero h1 em{font-style:normal;background:linear-gradient(90deg,var(--brand-400),var(--amber-500));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.hero .lede{font-size:18px;color:#cfe0f2;max-width:640px;margin-bottom:30px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:24px}
.hero-tel{font-size:16px;color:#dce9ff}
.hero-tel a{color:#fff;font-weight:800;font-size:20px}
.hero-badges{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:28px;max-width:640px}
.hb{display:flex;align-items:center;gap:9px;background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.16);
  padding:12px 14px;border-radius:12px;font-size:14px;color:#eaf3ff}
.hb i{color:var(--amber-500);font-weight:800;font-style:normal}
.hero-card{background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.18);border-radius:var(--r-lg);
  padding:30px;backdrop-filter:blur(6px);box-shadow:0 24px 60px rgba(0,0,0,.25)}
.hero-card h3{font-size:20px;margin-bottom:16px;color:#fff}
.hero-card ul{display:grid;gap:13px}
.hero-card li{font-size:14.5px;color:#dce9ff}
.hero-card li b{color:#fff}
/* 深色玻璃卡内禁用「白底灰字」的 .muted —— 统一提亮为浅蓝白，保证可读 */
.hero-card .muted{color:#cfe2ff}

/* ===== 信任条 ===== */
.trust-strip{background:linear-gradient(90deg,#0e2e5c,#134079);color:#fff;padding:36px 0}
.trust-strip .container{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.trust{text-align:center;border-left:1px solid rgba(255,255,255,.12);padding:6px 12px}
.trust:first-child{border-left:0}
.trust b{display:block;font-size:clamp(34px,3.6vw,52px);font-weight:800;line-height:1.1;
  background:linear-gradient(90deg,var(--brand-400),#9ccbff);-webkit-background-clip:text;background-clip:text;color:transparent}
.trust span{font-size:14px;color:#bcd2ea}

/* ===== Section ===== */
.section{padding:140px 0;position:relative}
.section-alt{background:linear-gradient(180deg,var(--bg-soft),var(--mist))}
.section-head{max-width:780px;margin:0 auto 56px;text-align:center;position:relative}
.section-head .eyebrow{margin-bottom:16px}
.section-head h2{font-size:clamp(28px,3.6vw,52px);color:var(--navy);font-weight:800;letter-spacing:-.01em;line-height:1.15}
.section-head h2::after{content:"";display:block;width:64px;height:4px;margin:18px auto 0;
  background:linear-gradient(90deg,var(--amber),var(--brand));border-radius:2px}
.section-head p{color:var(--muted);margin-top:14px;font-size:16px}
.section .sec-no{position:absolute;top:-78px;left:50%;transform:translateX(-50%);
  font-size:clamp(90px,9vw,150px);font-weight:800;color:rgba(47,143,232,.07);line-height:1;pointer-events:none;user-select:none}

/* ===== 核心优势 Banner + 卡 ===== */
.adv-banner{position:relative;border-radius:var(--r-lg);overflow:hidden;min-height:380px;display:flex;align-items:flex-end;
  box-shadow:var(--sh-lg);background:linear-gradient(135deg,#0e2e5c,#2f8fe8);isolation:isolate}
/* 分子网络底纹（半透明白描，缓慢平移） */
.adv-banner::before{content:"";position:absolute;inset:0;z-index:0;
  background:url(../img/adv-pattern.svg) repeat;background-size:260px 260px;
  animation:molDrift 30s linear infinite}
/* 漂移光斑：右上蓝辉 + 左下琥珀微光，与安全琥珀点缀呼应 */
.adv-banner .g{position:absolute;border-radius:50%;filter:blur(58px);pointer-events:none;z-index:0}
.adv-banner .g1{width:440px;height:440px;right:-90px;top:-150px;
  background:radial-gradient(circle,rgba(92,179,255,.50),transparent 66%);animation:gfloat1 14s ease-in-out infinite alternate}
.adv-banner .g2{width:380px;height:380px;left:-110px;bottom:-170px;
  background:radial-gradient(circle,rgba(232,163,61,.30),transparent 66%);animation:gfloat2 18s ease-in-out infinite alternate}
/* 斜向光带扫过（每 9s 一次） */
.adv-banner::after{content:"";position:absolute;top:-70%;bottom:-70%;left:-45%;width:34%;z-index:1;
  background:linear-gradient(105deg,transparent,rgba(255,255,255,.13),transparent);
  transform:skewX(-18deg);animation:lightSweep 9s ease-in-out infinite}
@keyframes molDrift{to{background-position:260px 130px}}
@keyframes gfloat1{to{transform:translate(-64px,44px) scale(1.1)}}
@keyframes gfloat2{to{transform:translate(72px,-36px) scale(1.08)}}
@keyframes lightSweep{0%,58%{left:-45%}100%{left:135%}}
@media (prefers-reduced-motion:reduce){
  .adv-banner::before,.adv-banner::after,.adv-banner .g{animation:none}
}
.adv-banner .ovl{position:absolute;inset:0;z-index:1;background:linear-gradient(180deg,rgba(14,46,92,0) 28%,rgba(14,46,92,.84) 100%)}
.adv-banner .body{position:relative;z-index:2;padding:44px;color:#fff}
.adv-banner .body h2{font-size:clamp(28px,3.4vw,46px);font-weight:800;margin:8px 0}
.adv-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:16px;margin-top:24px}
.adv-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:22px 18px;position:relative;
  box-shadow:var(--sh);transition:.25s}
.adv-card:hover{transform:translateY(-4px);box-shadow:var(--sh-blue)}
.adv-card::before{content:"";position:absolute;top:0;left:18px;right:18px;height:3px;border-radius:2px;
  background:linear-gradient(90deg,var(--amber),var(--brand))}
.adv-card .top{display:flex;align-items:center;justify-content:space-between;margin-bottom:4px}
.adv-card .ic{font-size:30px;line-height:1.15;filter:drop-shadow(0 6px 12px rgba(47,143,232,.28))}
.adv-card .no{font-size:12.5px;font-weight:800;color:var(--brand);letter-spacing:1px}
.adv-card h3{font-size:16.5px;color:var(--navy);margin:8px 0 6px}
.adv-card p{font-size:13px;line-height:1.7;color:var(--muted)}

/* ===== 产品四层 ===== */
.tier{display:grid;grid-template-columns:repeat(4,1fr);gap:26px}
.tier-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:38px 32px;box-shadow:var(--sh);
  position:relative;overflow:hidden;transition:.25s}
.tier-card:hover{transform:translateY(-4px);box-shadow:var(--sh-blue)}
.tier-card h3{font-size:23px;color:var(--navy);margin-bottom:8px}
.tier-card .sub{font-size:14px;color:var(--amber);font-weight:700;margin-bottom:14px}
.tier-card ul{display:grid;gap:12px;margin-top:8px}
.tier-card li{font-size:14.5px;line-height:1.65;color:var(--ink-2);padding-left:20px;position:relative}
.tier-card li::before{content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:2px;background:var(--brand)}
/* 三列宽卡（服务网络覆盖圈专用）+ 圈层标签 + 城市横排胶囊（避免一城一行把卡拉长） */
.tier-3{grid-template-columns:repeat(3,1fr)}
.tier-3 .tier-card{padding:32px 30px}
.tier-card .tag{display:inline-block;font-size:12.5px;font-weight:700;padding:5px 14px;border-radius:999px;margin-bottom:14px}
.tier-card .tag.lead{background:#e8f4ff;color:#1d63a8}
.tier-card .tag.profit{background:var(--amber-50);color:#b87721}
.tier-card .tag.support{background:var(--brand-50);color:var(--brand)}
.tier-card .chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:2px}
.tier-card .chips span{font-size:13px;font-weight:600;color:var(--ink-2);background:var(--brand-50);
  border:1px solid var(--line-2);padding:5px 12px;border-radius:999px}

/* ===== 应用场景 ===== */
.scen{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.scen-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px;box-shadow:var(--sh);transition:.2s}
.scen-card:hover{transform:translateY(-3px);border-color:var(--brand)}
.scen-card .ic{font-size:26px;margin-bottom:10px}
.scen-card h4{font-size:16px;color:var(--navy)}
.scen-card p{font-size:13px;color:var(--muted);margin-top:4px}

/* ===== 合规资质 ===== */
.comp{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.comp-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;box-shadow:var(--sh);transition:.2s}
.comp-card:hover{transform:translateY(-3px);box-shadow:var(--sh-blue)}
.comp-card .ic{width:52px;height:52px;border-radius:14px;background:var(--brand-50);color:var(--brand);
  display:grid;place-items:center;font-size:24px;margin-bottom:14px}
.comp-card h3{font-size:18px;color:var(--navy);margin-bottom:8px}
.comp-card p{font-size:14px;color:var(--muted)}

/* ===== 服务流程（箭头） ===== */
.flow{display:grid;grid-template-columns:repeat(5,1fr);gap:38px;position:relative}
.flow-step{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:26px 22px;box-shadow:var(--sh);position:relative}
.flow-step .no{font-size:12px;font-weight:800;color:var(--brand);letter-spacing:1px}
.flow-step h3{font-size:17px;color:var(--navy);margin:8px 0 6px}
.flow-step p{font-size:13.5px;color:var(--muted)}
.flow-step::after{content:"";position:absolute;right:-27px;top:50%;width:14px;height:14px;
  border-top:2px solid var(--brand);border-right:2px solid var(--brand);transform:translateY(-50%) rotate(45deg)}
.flow-step:last-child::after{display:none}

/* ===== 行业知识 / 列表卡 ===== */
.news{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.news-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:26px;box-shadow:var(--sh);transition:.2s;display:flex;flex-direction:column}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--sh-blue)}
.news-card .cat{font-size:12px;font-weight:700;color:var(--brand);background:var(--brand-50);padding:3px 10px;border-radius:999px;align-self:flex-start}
.news-card h3{font-size:18px;color:var(--navy);margin:12px 0 8px;line-height:1.4}
.news-card p{font-size:14px;color:var(--muted);flex:1}
.news-card .meta{font-size:12.5px;color:var(--slate);margin-top:14px}
.news-card .more{margin-top:14px;color:var(--brand);font-weight:700;font-size:14px}

/* ===== FAQ ===== */
.faq{max-width:920px;margin:0 auto;display:grid;gap:14px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:20px 24px;box-shadow:var(--sh)}
.faq-item summary{cursor:pointer;font-weight:700;color:var(--navy);font-size:16.5px;list-style:none;
  display:flex;justify-content:space-between;align-items:center;gap:16px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";color:var(--brand);font-size:22px;flex:none}
.faq-item[open] summary::after{content:"−"}
.faq-a{margin-top:12px;color:var(--muted);font-size:15px}

/* ===== CTA ===== */
.cta{background:radial-gradient(900px 400px at 50% -20%,rgba(92,179,255,.35),transparent 60%),
  linear-gradient(135deg,var(--navy),var(--brand));color:#fff;text-align:center;padding:120px 0}
.cta h2{font-size:clamp(28px,3.6vw,48px);font-weight:800;margin-bottom:14px}
.cta p{color:#dce9ff;font-size:17px;margin-bottom:28px}

/* ===== 内页 Banner ===== */
.page-banner{position:relative;padding:120px 0 90px;color:#fff;overflow:hidden;
  background:radial-gradient(800px 360px at 85% -20%,rgba(92,179,255,.35),transparent 60%),
             linear-gradient(135deg,#0a2447,#134079 70%,#2f8fe8)}
.page-banner::after{content:"";position:absolute;right:-120px;top:-120px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(92,179,255,.30),transparent 65%)}
.page-banner .container{position:relative;z-index:2}
.page-banner h1{font-size:clamp(30px,4.4vw,56px);font-weight:800;letter-spacing:-.01em}
.page-banner p{color:#cfe0f2;margin-top:12px;font-size:16px;max-width:760px}

/* ===== 面包屑 ===== */
.crumb{background:var(--bg-soft);border-bottom:1px solid var(--line);font-size:13.5px;color:var(--slate)}
.crumb .container{padding:14px 24px}
.crumb a{color:var(--brand)}
.crumb .sep{margin:0 8px;color:var(--line-2)}
.crumb .cur{color:var(--ink)}

/* ===== 关于页 ===== */
.about-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:64px;align-items:center}
.about-grid .lead{font-size:17px;color:var(--ink-2);margin:14px 0 18px}
.about-pic{aspect-ratio:4/3;border-radius:var(--r-lg);box-shadow:var(--sh-lg);
  background:linear-gradient(135deg,#0e2e5c,#2f8fe8);position:relative;overflow:hidden;display:grid;place-items:center;color:#c7e2ff}
.about-pic .big{font-size:64px;opacity:.5}
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:20px}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px;text-align:center;box-shadow:var(--sh)}
.stat b{display:block;font-size:30px;font-weight:800;color:var(--brand)}
.stat span{font-size:13px;color:var(--muted)}
.cred-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:10px}
.cred{display:flex;gap:10px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:16px 18px;box-shadow:var(--sh)}
.cred .ck{color:var(--brand);font-weight:800}
.cred b{color:var(--navy)}

/* ===== 联系页 ===== */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.contact-info .ci{display:flex;gap:14px;align-items:flex-start;margin-bottom:20px}
.contact-info .ci .ic{width:46px;height:46px;border-radius:12px;background:var(--brand-50);color:var(--brand);
  display:grid;place-items:center;font-size:22px;flex:none}
.contact-info .ci b{display:block;color:var(--navy);font-size:16px}
.contact-info .ci span{color:var(--muted);font-size:14.5px}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:32px;box-shadow:var(--sh-lg)}
.form-card h3{font-size:20px;color:var(--navy);margin-bottom:18px}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink-2);margin-bottom:7px}
.field input,.field textarea{width:100%;padding:12px 14px;border:1.5px solid var(--line);border-radius:12px;
  font-size:15px;font-family:inherit;color:var(--ink);background:#fff;transition:.2s}
.field input:focus,.field textarea:focus{border-color:var(--brand);outline:none;box-shadow:0 0 0 3px var(--brand-50)}
.field textarea{resize:vertical;min-height:120px}
.alert{margin-bottom:18px;padding:12px 16px;border-radius:12px;font-size:14.5px}
.alert-ok{background:#eaf4ff;color:#1f7fd6;border:1px solid #bcd6f0}
.alert-err{background:#fdeef1;color:#c01f43;border:1px solid #f3c2cd}

/* ===== 产品/实体 列表 & 详情 ===== */
.entity-list{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.entity-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh);
  transition:.2s;display:flex;flex-direction:column}
.entity-card:hover{transform:translateY(-3px);box-shadow:var(--sh-blue)}
.entity-card .thumb{aspect-ratio:16/10;background:linear-gradient(135deg,#0e2e5c,#2f8fe8);display:grid;place-items:center;color:#c7e2ff;font-size:40px}
.entity-card .thumb img{width:100%;height:100%;object-fit:cover}
.entity-card .body{padding:22px;flex:1;display:flex;flex-direction:column}
.entity-card h3{font-size:18px;color:var(--navy);margin-bottom:8px}
.entity-card p{font-size:14px;color:var(--muted);flex:1}
.entity-card .price{margin-top:12px;font-weight:800;color:var(--brand)}
.entity-card .more{margin-top:14px;color:var(--brand);font-weight:700}
.detail{max-width:860px;margin:0 auto}
.detail .hero-pic{aspect-ratio:21/9;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-lg);margin-bottom:28px;
  background:linear-gradient(135deg,#0e2e5c,#2f8fe8);display:grid;place-items:center;color:#c7e2ff;font-size:56px}
.detail h1{font-size:clamp(26px,3.4vw,40px);color:var(--navy);margin-bottom:10px}
.detail .meta{color:var(--slate);font-size:14px;margin-bottom:20px}
.detail .price{font-size:22px;font-weight:800;color:var(--brand);margin:14px 0}
.rich{font-size:16px;color:var(--ink-2);line-height:1.9}
.rich h2,.rich h3{color:var(--navy);margin:24px 0 12px}
.rich p{margin-bottom:14px}
.rich ul{list-style:disc;padding-left:22px;margin-bottom:14px}
.rich li{margin-bottom:8px}
.rich img{max-width:100%;border-radius:12px;margin:14px 0}

/* ===== 单页 ===== */
.page-body{max-width:860px;margin:0 auto}
.page-body h1{font-size:clamp(26px,3.4vw,40px);color:var(--navy);margin-bottom:18px}

/* ===== Footer ===== */
.footer{background:var(--navy);color:#bcd2ea;padding:64px 0 28px;position:relative}
.footer::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:linear-gradient(90deg,var(--brand),var(--amber))}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:30px}
.footer h4{color:#fff;font-size:16px;margin-bottom:14px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.footer-brand b{color:#fff;font-size:18px}
.footer a.footer-link{display:block;color:#bcd2ea;padding:5px 0;font-size:14px}
.footer a.footer-link:hover{color:var(--brand-400)}
.footer .footer-phone{color:#fff;font-weight:800}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:40px;padding-top:20px;display:flex;
  justify-content:space-between;font-size:13px;flex-wrap:wrap;gap:10px}
.qr{width:112px;height:112px;background:#fff;border-radius:10px;margin-top:8px;display:grid;place-items:center;color:var(--slate);font-size:12px;text-align:center}

/* ===== 移动浮条 ===== */
.mobile-bar{display:none;position:fixed;bottom:0;left:0;right:0;z-index:80;background:#fff;border-top:1px solid var(--line);
  box-shadow:0 -6px 20px rgba(14,46,92,.12)}
.mobile-bar a{flex:1;text-align:center;padding:12px;font-weight:700;color:var(--navy);font-size:14px}
.mobile-bar a:first-child{border-right:1px solid var(--line);color:var(--brand)}

/* ===== 进场动画（轻量） ===== */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none}}

/* ===== 响应式 ===== */
@media (max-width:1080px){
  .hero-inner{grid-template-columns:1fr}
  .hero-card{display:none}
  .adv-grid{grid-template-columns:repeat(3,1fr)}
  .tier{grid-template-columns:repeat(2,1fr)}
  .scen{grid-template-columns:repeat(3,1fr)}
  .comp{grid-template-columns:repeat(2,1fr)}
  .flow{grid-template-columns:repeat(3,1fr);gap:30px}
  .flow-step::after{display:none}
  .news{grid-template-columns:repeat(2,1fr)}
  .entity-list{grid-template-columns:repeat(2,1fr)}
  .about-grid,.contact-grid{grid-template-columns:1fr;gap:36px}
}
@media (max-width:860px){
  .nav,.header-cta{display:none}
  .menu-btn{display:block}
  /* 小屏隐藏顶部信息条：内容两行超出固定 40px 高会溢出遮挡；
     合规口径保留在页脚底部完整声明，热线保留在底部快捷栏与页脚 */
  .topbar{display:none}
  .trust-strip .container{grid-template-columns:repeat(2,1fr);gap:24px}
  .section{padding:88px 0}
  .section .sec-no{top:-54px;font-size:clamp(70px,14vw,110px)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .mobile-bar{display:flex}
  body{padding-bottom:56px}
}
@media (max-width:560px){
  .adv-grid,.tier,.scen,.comp,.flow,.news,.entity-list,.stat-row,.cred-list{grid-template-columns:1fr}
  .hero-badges{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .container{padding:0 18px}
}

/* ===== 链接箭头 / 勾选列表 / 区域药丸（首页与通用） ===== */
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:700}
.link-arrow::after{content:"→";transition:.2s}
.link-arrow:hover::after{transform:translateX(4px)}
.hero-card .chk{list-style:none;display:grid;gap:10px;margin:0}
.hero-card .chk li{position:relative;padding-left:22px}
.hero-card .chk li::before{content:"✓";position:absolute;left:0;top:0;color:var(--amber-500);font-weight:800}
.avatar-stack{display:flex;flex-wrap:wrap;gap:8px}
.ava{display:inline-flex;align-items:center;height:32px;padding:0 12px;border-radius:999px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);color:#eaf3ff;font-size:13px}

/* ===== 通用空状态 ===== */
.empty{text-align:center;color:var(--muted);padding:60px 0;font-size:16px}