:root{
  --blue-900:#0a2540;
  --blue-800:#0b2a4a;
  --blue-700:#123a63;
  --blue-600:#1e6fd9;
  --blue-500:#2f80ed;
  --blue-400:#3b9eff;
  --blue-300:#7fb4f0;
  --blue-100:#e8f1fd;
  --ink:#1a2b3c;
  --ink-soft:#48586a;
  --ink-mute:#7d8b9a;
  --line:#e3e9f0;
  --bg:#ffffff;
  --bg-soft:#f5f8fc;
  --bg-alt:#eef4fb;
  --white:#ffffff;
  --radius:14px;
  --radius-sm:10px;
  --shadow-sm:0 2px 10px rgba(16,42,74,.06);
  --shadow-md:0 10px 30px rgba(16,42,74,.10);
  --shadow-lg:0 20px 50px rgba(16,42,74,.16);
  --maxw:1160px;
  --font:"Noto Sans SC",-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:96px 0}

/* ---------- 通用文字 ---------- */
.section-eyebrow{color:var(--blue-600);font-weight:600;letter-spacing:.08em;font-size:14px;margin-bottom:14px;text-transform:uppercase}
.section-eyebrow.light{color:var(--blue-400)}
.section-title{font-size:clamp(26px,3.4vw,40px);line-height:1.25;font-weight:700;color:var(--ink);letter-spacing:-.01em}
.section-title.light{color:#fff}
.section-desc{margin-top:16px;color:var(--ink-soft);font-size:17px;max-width:640px}
.section-head{text-align:center;max-width:720px;margin:0 auto 56px}
.section-head .section-desc{margin-left:auto;margin-right:auto}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 30px;border-radius:40px;font-size:16px;font-weight:600;cursor:pointer;border:1.5px solid transparent;transition:.25s ease;white-space:nowrap;-webkit-appearance:none;appearance:none}
.btn-primary{background:var(--blue-600);color:#fff;box-shadow:0 8px 20px rgba(30,111,217,.30)}
.btn-primary:hover{background:var(--blue-500);transform:translateY(-2px);box-shadow:0 12px 26px rgba(30,111,217,.38)}
.btn-ghost{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.55)}
.btn-ghost:hover{background:rgba(255,255,255,.16);transform:translateY(-2px)}
.btn-block{width:100%}

/* ---------- 导航 ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:100;transition:.3s ease;padding:18px 0}
.site-header.scrolled{background:rgba(255,255,255,.92);backdrop-filter:blur(12px);box-shadow:var(--shadow-sm);padding:12px 0}
.nav-inner{display:flex;align-items:center;justify-content:space-between}
.logo{display:flex;align-items:center;gap:10px;color:#fff;transition:color .3s}
.logo-img{max-height:38px;max-width:100%;width:auto;height:auto;object-fit:contain}
.site-header.scrolled .logo{color:var(--blue-800)}
.logo-mark{flex-shrink:0}
.logo-text{font-size:20px;font-weight:700;letter-spacing:.02em;display:flex;align-items:baseline;gap:6px}
.logo-text em{font-style:normal;font-size:12px;font-weight:500;opacity:.6;letter-spacing:.1em}
.main-nav{display:flex;align-items:center;gap:34px}
.main-nav a{color:rgba(255,255,255,.9);font-size:15.5px;font-weight:500;position:relative;transition:color .25s}
.main-nav a::after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:2px;background:var(--blue-400);transition:width .25s}
.main-nav a:hover::after{width:100%}
.site-header.scrolled .main-nav a{color:var(--ink-soft)}
.site-header.scrolled .main-nav a:hover{color:var(--blue-600)}
.main-nav a.active{color:#fff}
.site-header.scrolled .main-nav a.active{color:var(--blue-600)}
.main-nav a.active::after{width:100%}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:6px}
.nav-toggle span{width:26px;height:2px;background:#fff;border-radius:2px;transition:.3s}
.site-header.scrolled .nav-toggle span{background:var(--blue-800)}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;background:linear-gradient(140deg,#0a2540 0%,#123a63 55%,#1857a8 100%);overflow:hidden}
.hero-canvas{position:absolute;inset:0;width:100%;height:100%}
.hero-overlay{position:absolute;inset:0;background:radial-gradient(circle at 70% 30%,rgba(59,158,255,.18),transparent 55%)}
.hero-content{position:relative;z-index:2;width:100%;max-width:1200px;margin:0 auto;padding:60px 0 0;text-align:center}
.hero-bg{position:absolute;inset:0;background:url('../assets/hero-ship-lines.png') center/cover no-repeat;opacity:.5;mix-blend-mode:screen;pointer-events:none;z-index:1;transform-origin:50% 62%;animation:shipSway 8s ease-in-out infinite;will-change:transform}
@keyframes shipSway{0%{transform:scale(1.14) translateX(-2.4%) rotate(-2deg)}50%{transform:scale(1.14) translateX(2.4%) rotate(2deg)}100%{transform:scale(1.14) translateX(-2.4%) rotate(-2deg)}}
@media (prefers-reduced-motion: reduce){.hero-bg{animation:none}}
.hero-vignette{position:absolute;inset:0;background:radial-gradient(ellipse 58% 62% at 50% 46%,rgba(8,18,36,.62) 0%,rgba(8,18,36,.38) 38%,rgba(8,18,36,.10) 70%,transparent 100%);pointer-events:none;z-index:2}
.hero-text{text-align:center;max-width:960px;margin:0 auto;position:relative;z-index:3}
@media(max-width:860px){
  .hero-text{text-align:center}
  .hero-content{padding:90px 0 0}
  .hero-bg{opacity:.35}
  .hero-vignette{background:radial-gradient(ellipse 70% 60% at 50% 50%,rgba(8,18,36,.7) 0%,rgba(8,18,36,.4) 45%,transparent 85%)}
}
.hero-eyebrow{color:rgba(255,255,255,.82);font-weight:600;letter-spacing:.1em;font-size:14px;margin:0 0 28px}
.hero-badge{display:inline-block;padding:8px 20px;border-radius:30px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.28);color:#fff;font-size:14.5px;font-weight:600;letter-spacing:.03em;margin-bottom:20px;backdrop-filter:blur(4px)}
.hero-badge b{color:var(--blue-400);font-weight:700}
.hero-title{font-size:clamp(34px,4.8vw,62px);line-height:1.16;font-weight:800;color:#fff;letter-spacing:-.01em;margin:0;text-shadow:0 6px 28px rgba(0,0,0,.32)}
.accent-ai{background:linear-gradient(120deg,#9ad0ff,#3b9eff 55%,#7fb4f0);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:#3b9eff;font-weight:900;padding:0 .02em}
.accent-grow{position:relative;font-weight:900;color:#fff}
.accent-grow::after{content:"";position:absolute;left:2%;right:2%;bottom:.04em;height:.13em;border-radius:6px;background:linear-gradient(90deg,transparent,rgba(59,158,255,.95) 18%,rgba(59,158,255,.95) 82%,transparent)}
.hero-slogan .accent{color:#fff}
.hero-modules{margin-top:48px;display:flex;align-items:stretch;justify-content:center;flex-wrap:wrap;gap:0;color:#fff}
.hm-item{display:flex;flex-direction:column;align-items:center;padding:6px 38px;max-width:300px;text-align:center}
.hm-title{font-size:clamp(30px,3.8vw,50px);font-weight:800;letter-spacing:.06em;color:#fff;line-height:1.2}
.hm-note{margin-top:14px;font-size:clamp(13px,1.5vw,16px);font-weight:500;letter-spacing:.03em;color:rgba(255,255,255,.82);line-height:1.75}
.hero-modules .hm-sep{width:1.5px;align-self:center;height:64px;background:rgba(255,255,255,.4);margin:0 4px}
.hero-base{margin:48px auto 0;padding-top:32px;display:block;color:#fff;font-size:clamp(30px,3.8vw,50px);font-weight:800;letter-spacing:.08em;line-height:1.2;position:relative}
.hero-base::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:140px;height:2px;background:rgba(255,255,255,.5)}
.hero-sub{margin:24px auto 0;font-size:clamp(15px,1.9vw,20px);color:rgba(255,255,255,.8);line-height:1.75;max-width:560px;letter-spacing:.02em}
.hero-actions{margin-top:52px;display:flex;gap:18px;flex-wrap:wrap;justify-content:center}
.hero-scroll{position:absolute;bottom:32px;left:50%;transform:translateX(-50%);z-index:2;width:26px;height:42px;border:2px solid rgba(255,255,255,.5);border-radius:20px;display:flex;justify-content:center;padding-top:7px}
.hero-scroll span{width:4px;height:9px;background:#fff;border-radius:2px;animation:scrollDot 1.6s infinite}

@keyframes scrollDot{0%{opacity:0;transform:translateY(-4px)}40%{opacity:1}80%{opacity:0;transform:translateY(10px)}}

/* ---------- 数据背书 ---------- */
.stats{background:var(--blue-800);padding:64px 0 46px}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat-item{text-align:center;color:#fff}
.stat-num{font-size:clamp(38px,5vw,56px);font-weight:800;color:var(--blue-400);line-height:1;display:flex;align-items:baseline;justify-content:center;gap:2px}
.stat-num i{font-size:24px;font-style:normal;font-weight:700;color:#fff}
.stat-label{margin-top:12px;color:rgba(255,255,255,.75);font-size:15.5px}
.stats-note{color:rgba(255,255,255,.4);font-size:12.5px;text-align:center;margin-top:30px}

/* ---------- 关于（2026-09-01 新版：愿景/使命/价值观 + 管理哲学） ---------- */
.about{
  background:
    radial-gradient(1100px 480px at 88% -12%, rgba(59,158,255,.20), transparent 62%),
    radial-gradient(800px 420px at -8% 112%, rgba(30,111,217,.28), transparent 60%),
    linear-gradient(158deg, var(--blue-900) 0%, var(--blue-800) 100%);
  position:relative;
  overflow:hidden;
}
.about-head{text-align:center;max-width:780px;margin:0 auto 56px}
.about-head .section-title{font-size:clamp(30px,4.2vw,52px);color:#fff}
.about-head .section-desc{margin:18px auto 0;color:#bcd6f5}
.grad-line{
  background:linear-gradient(92deg, var(--blue-400) 10%, #6cb5ff 55%, var(--blue-300) 90%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.about-cols{display:grid;grid-template-columns:.92fr 1.08fr;gap:26px;align-items:stretch}
/* 左列：愿景 / 使命 / 价值观 */
.about-vm{display:flex;flex-direction:column;gap:20px}
.vm-card{
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.11);
  border-radius:var(--radius);
  padding:26px 28px;
  flex:1;
}
.vm-tag{font-size:12px;letter-spacing:.18em;color:var(--blue-300);font-weight:600;text-transform:uppercase}
.vm-text{font-size:19px;color:#fff;margin-top:10px;line-height:1.6}
.vm-text b{color:var(--blue-400);font-weight:700}
.vm-values{list-style:none;margin-top:14px;display:grid;grid-template-columns:1fr 1fr;gap:11px 18px}
.vm-values li{color:#d7e7fb;font-size:15.5px;display:flex;align-items:center;gap:9px}
.vm-values li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--blue-400);flex-shrink:0}
.vm-values b{color:#fff;font-weight:700;margin-right:2px}
/* 右列：管理哲学 */
.about-philosophy{display:flex;flex-direction:column;gap:20px}
.ph-card{
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.11);
  border-radius:var(--radius);
  padding:28px 30px;
  position:relative;
  overflow:hidden;
}
.ph-card::after{
  content:"";position:absolute;top:0;right:0;width:150px;height:150px;
  background:radial-gradient(circle at top right, rgba(59,158,255,.18), transparent 70%);
  pointer-events:none;
}
.ph-no{position:absolute;top:14px;right:26px;font-size:46px;font-weight:800;color:rgba(255,255,255,.09);line-height:1;pointer-events:none}
.ph-title{font-size:22px;color:#fff;font-weight:700;display:flex;align-items:baseline;gap:12px;flex-wrap:wrap}
.ph-en{font-size:12px;letter-spacing:.14em;color:var(--blue-300);font-weight:500;text-transform:uppercase}
.ph-desc{margin-top:12px;color:#c6dbf5;font-size:15.5px;line-height:1.85;max-width:560px}
.ph-desc b{color:var(--blue-400);font-weight:700}
/* AI 金句条 */
.ph-ai{
  display:flex;align-items:center;gap:16px;
  background:linear-gradient(100deg, var(--blue-500) 0%, var(--blue-400) 55%, #4fa8ff 100%);
  border-radius:var(--radius);
  padding:20px 26px;
  box-shadow:0 12px 34px rgba(47,128,237,.28);
}
.ph-ai-badge{
  flex-shrink:0;width:46px;height:46px;border-radius:12px;
  background:rgba(255,255,255,.18);
  border:1px solid rgba(255,255,255,.35);
  display:flex;align-items:center;justify-content:center;
  font-weight:800;color:#fff;font-size:18px;letter-spacing:.02em;
}
.ph-ai p{color:#fff;font-size:16.5px;line-height:1.7}
.ph-ai b{font-weight:800}
@media (max-width: 900px){
  .about-cols{grid-template-columns:1fr}
  .about-head{margin-bottom:40px}
  .vm-values{grid-template-columns:1fr;gap:10px}
}

/* ---------- 服务矩阵 ---------- */
.services{background:var(--bg-soft)}
/* ---------- 业务体系（五大板块） ---------- */
.biz-list{display:flex;flex-direction:column;gap:20px}
.biz-block{display:grid;grid-template-columns:120px 1fr;gap:36px;align-items:start;padding:38px 36px;border-radius:var(--radius);background:#fff;border:1px solid var(--line);position:relative;overflow:hidden;transition:.3s ease}
.biz-block::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:linear-gradient(160deg,var(--blue-600),var(--blue-400));opacity:0;transition:opacity .3s}
.biz-block:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:transparent}
.biz-block:hover::before{opacity:1}
.biz-no{font-size:clamp(42px,5vw,58px);font-weight:800;line-height:1;color:var(--blue-100);-webkit-text-stroke:1.4px var(--blue-600);letter-spacing:-.02em}
.biz-body{min-width:0}
.biz-title{font-size:23px;font-weight:700;color:var(--ink);margin-bottom:6px}
.biz-sub{font-size:14.5px;font-weight:600;color:var(--blue-600);margin-bottom:14px}
.biz-desc{color:var(--ink-soft);font-size:15.5px;line-height:1.85;margin:0}
.biz-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:16px}
.biz-tag{font-size:13px;padding:6px 13px;border-radius:30px;background:var(--blue-100);color:var(--blue-700);font-weight:600;white-space:nowrap}
.biz-method{list-style:none;counter-reset:bm;margin-top:16px;display:grid;grid-template-columns:repeat(2,1fr);gap:10px 22px}
.biz-method li{position:relative;padding-left:38px;font-size:14.5px;color:var(--ink-soft);min-height:30px;display:flex;align-items:center}
.biz-method li::before{counter-increment:bm;content:counter(bm,decimal-leading-zero);position:absolute;left:0;top:50%;transform:translateY(-50%);width:28px;height:28px;border-radius:8px;background:var(--blue-600);color:#fff;font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center}
.biz-method strong{color:var(--ink);font-weight:700;margin-right:6px}

/* ---------- 行业案例 ---------- */
.cases{background:var(--bg-soft)}
.case-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.case-card{background:#fff;border-radius:var(--radius);border:1px solid var(--line);padding:28px 26px;transition:.28s ease;position:relative;overflow:hidden}
.case-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:linear-gradient(160deg,var(--blue-600),var(--blue-400));opacity:0;transition:opacity .3s}
.case-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:transparent}
.case-card:hover::before{opacity:1}
.case-industry{display:inline-block;font-size:12px;font-weight:700;color:#fff;background:var(--blue-600);padding:4px 13px;border-radius:20px;margin-bottom:14px;letter-spacing:.04em}
.case-card h3{font-size:17.5px;font-weight:700;color:var(--ink);line-height:1.45;margin-bottom:10px}
.case-result{color:var(--ink-soft);font-size:14.5px;line-height:1.7}
.case-tags-row{display:flex;flex-wrap:wrap;gap:7px;margin-top:14px}
.case-tag-mini{font-size:12px;padding:4px 11px;border-radius:20px;background:var(--bg-alt);color:var(--blue-700);font-weight:600}

/* ---------- 为何选择 ---------- */
.why{background:var(--bg)}
.why-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.why-item{padding:32px 34px;border-radius:var(--radius);background:var(--bg-soft);border-left:4px solid var(--blue-600);transition:.25s}
.why-item:hover{box-shadow:var(--shadow-md);transform:translateY(-3px)}
.why-item h3{font-size:19px;font-weight:700;color:var(--ink);margin-bottom:10px}
.why-item p{color:var(--ink-soft);font-size:15.5px}

/* ---------- 联系我们 ---------- */
.contact{background:linear-gradient(140deg,#0a2540,#123a63 60%,#1857a8);color:#fff}
.contact-inner{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.contact-lead{color:rgba(255,255,255,.8);font-size:16.5px;margin-top:18px}
.contact-socials{list-style:none;margin-top:30px;display:flex;flex-direction:column;gap:20px}
.contact-socials li{display:flex;align-items:center;gap:14px;font-size:16px;color:rgba(255,255,255,.92);padding:16px 20px;border-radius:var(--radius-sm);background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12)}
.social-icon{font-size:24px;flex-shrink:0}
.contact-socials strong{color:#fff;font-weight:700;margin-right:6px}
.contact-socials em{font-style:normal;color:rgba(255,255,255,.65);font-size:14.5px}
.contact-qr-card{margin-top:34px;display:inline-flex;flex-direction:column;align-items:center;gap:14px;padding:22px 22px 18px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);border-radius:var(--radius)}
.contact-qr-img{width:200px;height:200px;border-radius:var(--radius-sm);background:#fff;padding:10px;box-shadow:0 8px 24px rgba(0,0,0,.18)}
.contact-qr-caption{margin:0;color:rgba(255,255,255,.88);font-size:14.5px;letter-spacing:.5px;text-align:center}
.contact-qr-hint{margin:0;color:rgba(255,255,255,.6);font-size:12.5px;text-align:center}
.contact-form{background:#fff;border-radius:var(--radius);padding:36px 32px;box-shadow:var(--shadow-lg)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.contact-form input,.contact-form textarea{width:100%;padding:14px 16px;border:1.5px solid var(--line);border-radius:var(--radius-sm);font-size:15.5px;font-family:inherit;color:var(--ink);margin-bottom:14px;transition:.2s;background:var(--bg-soft)}
.contact-form input:focus,.contact-form textarea:focus{outline:none;border-color:var(--blue-600);background:#fff;box-shadow:0 0 0 3px rgba(30,111,217,.12)}
.contact-form textarea{resize:vertical}
.form-hint{font-size:12.5px;color:var(--ink-mute);margin-top:6px;text-align:center}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--blue-900);color:#fff}
.footer-inner{display:flex;justify-content:space-between;align-items:flex-start;padding:56px 24px 40px;flex-wrap:wrap;gap:30px}
.footer-brand .logo-text{color:#fff}
.footer-brand p{color:rgba(255,255,255,.6);margin-top:14px;font-size:15px}
.footer-nav{display:flex;gap:28px;flex-wrap:wrap}
.footer-nav a{color:rgba(255,255,255,.75);font-size:15px;transition:.2s}
.footer-nav a:hover{color:var(--blue-400)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0}
.footer-bottom .container{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px}
.footer-bottom span,.footer-bottom a{color:rgba(255,255,255,.5);font-size:13.5px}
.footer-bottom a:hover{color:var(--blue-400)}

/* ---------- 滚动淡入 ---------- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:none}

/* ---------- 行业洞察 / 文章 / 详情页（公共样式） ---------- */
.insights-hero{background:linear-gradient(160deg,var(--blue-900),var(--blue-700));padding:140px 0 80px;text-align:center;color:#fff;position:relative;overflow:hidden}
.insights-hero::before{content:"";position:absolute;top:-40%;left:-20%;width:70%;height:200%;background:radial-gradient(ellipse,rgba(47,128,237,.15) 0%,transparent 70%);pointer-events:none}
.insights-hero h1{font-size:clamp(28px,4vw,44px);font-weight:800;margin-bottom:14px;letter-spacing:-.02em}
.insights-hero p{font-size:17px;color:rgba(255,255,255,.75);max-width:560px;margin:0 auto}

.insights-body{background:var(--bg-soft)}
.insights-filter{display:flex;align-items:center;gap:10px;flex-wrap:wrap;justify-content:center;margin-bottom:48px}
.filter-btn{padding:8px 22px;border-radius:30px;font-size:14px;font-weight:600;border:1.5px solid var(--line);background:#fff;color:var(--ink-soft);cursor:pointer;transition:.25s ease}
.filter-btn:hover,.filter-btn.active{background:var(--blue-600);color:#fff;border-color:var(--blue-600)}

.articles-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.article-card{background:#fff;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);transition:.3s ease;display:flex;flex-direction:column}
.article-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
.article-card.featured{grid-column:1/-1;display:grid;grid-template-columns:1fr 1fr}
.article-cover{aspect-ratio:2/1;background:linear-gradient(135deg,var(--blue-900),var(--blue-800));display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}
.article-card.featured .article-cover{aspect-ratio:2/1;min-height:auto}
.article-cover-img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain}
.article-cover-icon{font-size:56px;opacity:.3;color:rgba(255,255,255,.35)}
.article-cat{position:absolute;top:16px;left:16px;padding:5px 14px;border-radius:20px;background:var(--blue-600);color:#fff;font-size:12px;font-weight:700;letter-spacing:.04em}
.article-body{padding:26px 28px 28px;display:flex;flex-direction:column;flex:1}
.article-date{font-size:13px;color:var(--ink-mute);margin-bottom:8px}
.article-title{font-size:19px;font-weight:700;color:var(--ink);line-height:1.45;margin-bottom:10px}
.article-card.featured .article-title{font-size:23px}
.article-summary{color:var(--ink-soft);font-size:15px;line-height:1.75;flex:1;margin-bottom:18px}
.article-meta{display:flex;align-items:center;gap:16px;font-size:13px;color:var(--ink-mute)}
.article-tags{display:flex;gap:7px;flex-wrap:wrap;margin-top:12px}
.article-tag{font-size:12px;padding:4px 11px;border-radius:20px;background:var(--bg-alt);color:var(--blue-700);font-weight:600}
/* 卡片可点击 */
.article-link{text-decoration:none;color:inherit;cursor:pointer}
.read-more{color:var(--blue-600);font-weight:600;margin-left:auto}
.article-card:hover .read-more{color:var(--blue-700)}

/* ---------- 文章详情页 ---------- */
.detail-hero{background:linear-gradient(160deg,var(--blue-900),var(--blue-700));padding:140px 0 70px;color:#fff;position:relative;overflow:hidden}
.detail-hero::before{content:"";position:absolute;top:-40%;left:-20%;width:70%;height:200%;background:radial-gradient(ellipse,rgba(47,128,237,.15) 0%,transparent 70%);pointer-events:none}
.back-link{display:inline-block;color:var(--blue-400);font-weight:600;margin-bottom:22px;transition:.2s}
.back-link:hover{color:#fff;transform:translateX(-3px)}
.detail-cat{display:inline-block;padding:5px 14px;border-radius:20px;background:var(--blue-600);color:#fff;font-size:13px;font-weight:700;letter-spacing:.04em;margin-bottom:16px}
.detail-title{font-size:clamp(26px,3.6vw,40px);font-weight:800;line-height:1.35;letter-spacing:-.01em;max-width:900px}
.detail-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:18px;color:rgba(255,255,255,.7);font-size:14px}

.detail-body{background:var(--bg-soft)}
.detail-container{max-width:820px}
.article-content{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:44px 48px;line-height:1.9;font-size:16.5px;color:var(--ink-soft)}
.article-content h2{font-size:23px;font-weight:800;color:var(--ink);margin:34px 0 14px;line-height:1.4}
.article-content h3{font-size:19px;font-weight:700;color:var(--ink);margin:26px 0 10px}
.article-content p{margin-bottom:18px}
.article-content ul,.article-content ol{margin:0 0 18px 22px}
.article-content li{margin-bottom:9px}
.article-content strong{color:var(--ink);font-weight:700}
.article-content blockquote{margin:22px 0;padding:14px 22px;border-left:4px solid var(--blue-600);background:var(--blue-100);color:var(--ink);border-radius:0 var(--radius-sm) var(--radius-sm) 0;font-style:italic}
/* 正文内嵌图片（图文混排）：自动居中、圆角、移动端不变形 */
.article-content img{display:block;max-width:100%;height:auto;margin:28px auto;border-radius:var(--radius);box-shadow:0 6px 22px rgba(18,38,63,.10)}
.article-content figure{margin:28px 0;text-align:center}
.article-content figure img{margin:0 auto 12px}
.article-content figcaption{display:inline-block;max-width:90%;font-size:13.5px;color:var(--ink-mute);border-top:1px dashed var(--line);padding-top:8px}
.article-content table{width:100%;border-collapse:collapse;margin:24px 0;font-size:14.5px;line-height:1.6}
.article-content th,.article-content td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
.article-content th{background:var(--blue-100);color:var(--ink);font-weight:700}
.article-content tr:nth-child(even) td{background:#fafbfc}
.detail-tags{display:flex;gap:8px;flex-wrap:wrap;margin:28px 0}
.detail-tags .article-tag{font-size:13px}
.back-link.bottom{display:inline-block;margin-top:30px;color:var(--blue-600)}
.back-link.bottom:hover{color:var(--blue-700)}

.related{background:#fff;border-top:1px solid var(--line)}
.related .section-title{text-align:center;margin-bottom:40px}

/* ---------- 响应式 ---------- */
@media(max-width:960px){
  .section{padding:72px 0}
  .about-grid,.contact-inner{grid-template-columns:1fr;gap:40px}
  .service-grid,.method-steps{grid-template-columns:repeat(2,1fr)}
  .case-grid{grid-template-columns:1fr}
  .main-nav{position:fixed;top:0;right:-100%;height:100vh;width:74%;max-width:320px;background:#0b2a4a;flex-direction:column;align-items:flex-start;justify-content:center;gap:26px;padding:0 40px;transition:right .35s ease;box-shadow:-10px 0 40px rgba(0,0,0,.3)}
  .main-nav.open{right:0}
  .main-nav a{color:#fff !important;font-size:19px}
  .site-header.scrolled .main-nav a{color:#fff !important}
  .nav-toggle{display:flex;z-index:120}
  .nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav-toggle.open span:nth-child(2){opacity:0}
  .nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .nav-toggle.open span{background:#fff !important}
}
/* ===== 讲师招募 ===== */
.join{background:linear-gradient(140deg,#0a2540,#123a63 60%,#1857a8);color:#fff}
.join-inner{display:grid;grid-template-columns:1.3fr 1fr;gap:56px;align-items:start}
.join-lead{color:rgba(255,255,255,.82);font-size:16px;line-height:1.8;margin-top:18px}
.join .section-eyebrow{color:#bcd6f5}
.join .section-title{color:#fff}
.join-list{list-style:none;margin-top:26px;display:flex;flex-direction:column;gap:16px}
.join-list li{display:flex;gap:12px;font-size:15.5px;color:rgba(255,255,255,.9);line-height:1.65}
.join-list .dot{flex-shrink:0;width:8px;height:8px;border-radius:50%;background:var(--blue-400);margin-top:8px}
.join-list strong{color:#fff}
.join-card{background:#fff;border-radius:var(--radius);padding:32px 30px;box-shadow:var(--shadow-lg)}
.join-card h3{color:var(--ink);font-size:22px;margin-bottom:6px}
.join-card-sub{color:var(--ink-mute);font-size:14.5px;margin-bottom:18px}
.join-form input,.join-form textarea{width:100%;padding:13px 15px;border:1.5px solid var(--line);border-radius:var(--radius-sm);font-size:15px;font-family:inherit;color:var(--ink);margin-bottom:12px;background:var(--bg-soft)}
.join-form input:focus,.join-form textarea:focus{outline:none;border-color:var(--blue-600);background:#fff;box-shadow:0 0 0 3px rgba(30,111,217,.12)}
.join-form textarea{resize:vertical}
.join-mail{display:block;text-align:center;font-size:21px;font-weight:700;color:var(--blue-600);background:var(--bg-soft);border:2px solid var(--blue-200);border-radius:var(--radius);padding:22px 18px;margin:14px 0 12px;text-decoration:none;transition:all .2s;word-break:break-all}
.join-mail:hover{background:var(--blue-50);border-color:var(--blue-600);box-shadow:0 4px 16px rgba(30,111,217,.15)}
.sc-card{cursor:pointer}
.sc-card-foot{display:flex;align-items:center;justify-content:space-between;margin-top:14px}
/* 分享按钮：复用 .btn 尺寸（同全站按钮），仅换黄色 + 点击波纹 */
.btn.sc-share,.btn.btn-share{background:#FFC400;color:#1a1a1a;border-color:#FFC400;-webkit-appearance:none;appearance:none;box-shadow:0 8px 20px rgba(255,196,0,.32);position:relative;overflow:hidden}
.sc-share:hover,.btn-share:hover{background:#FFB300;border-color:#FFB300;transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,196,0,.40)}
.article-share{text-align:center;margin:28px 0 8px}
.ripple{position:absolute;border-radius:50%;background:rgba(0,0,0,.20);transform:scale(0);animation:rippleAnim .55s ease-out;pointer-events:none}
@keyframes rippleAnim{to{transform:scale(1);opacity:0}}
@media(max-width:720px){
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:34px 20px}
  .service-grid,.method-steps,.why-grid,.case-grid{grid-template-columns:1fr}
  .biz-block{grid-template-columns:1fr;gap:14px;padding:26px 22px}
  .biz-no{font-size:40px}
  .biz-method{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .footer-inner{flex-direction:column}
  .footer-bottom .container{flex-direction:column;text-align:center}
  .hero-content{padding-top:120px}
  .insights-hero{padding:110px 0 60px}
  .articles-grid{grid-template-columns:1fr}
  .article-card.featured{grid-template-columns:1fr}
  .article-card.featured .article-cover{aspect-ratio:2/1}
  .detail-hero{padding:110px 0 54px}
  .article-content{padding:28px 22px;font-size:16px}
  .detail-container{max-width:100%}
  .join-inner{grid-template-columns:1fr;gap:36px}
}