/* ============================================================
   恒巨教育品牌官网 — 全局样式
   设计基调：深蓝/藏青（专业·信赖） + 金/橙（成功·活力）
   ============================================================ */

:root{
  --navy-900:#081a33;
  --navy-800:#0c2447;
  --navy-700:#123163;
  --navy-600:#1a3f7a;
  --navy-500:#26528f;
  --gold:#c9a24b;
  --gold-light:#e3b85c;
  --orange:#e8893a;
  --ink:#1c2b3a;
  --muted:#5b6b7c;
  --bg:#f5f8fc;
  --bg-soft:#eef3fa;
  --white:#ffffff;
  --line:#e2e9f1;
  --shadow-sm:0 4px 14px rgba(8,26,51,.08);
  --shadow-md:0 12px 32px rgba(8,26,51,.12);
  --shadow-lg:0 22px 50px rgba(8,26,51,.18);
  --radius:16px;
  --radius-sm:10px;
  --maxw:1200px;
  --header-h:72px;
  --grad-gold:linear-gradient(135deg,var(--gold) 0%,var(--orange) 100%);
  --grad-navy:linear-gradient(135deg,var(--navy-800) 0%,var(--navy-600) 100%);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",
         "Hiragino Sans GB","Source Han Sans SC","Noto Sans CJK SC",sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  color:var(--ink);
  background:var(--bg);
  line-height:1.7;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
ul{list-style:none}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
section{padding:84px 0}
.section-head{text-align:center;max-width:760px;margin:0 auto 52px}
.section-head .eyebrow{
  display:inline-block;color:var(--gold);font-weight:700;letter-spacing:2px;
  font-size:13px;text-transform:uppercase;margin-bottom:12px;
}
.section-head h2{
  font-size:34px;line-height:1.3;color:var(--navy-800);font-weight:800;
  letter-spacing:.5px;
}
.section-head p{margin-top:14px;color:var(--muted);font-size:16px}
.gold{color:var(--gold)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 28px;border-radius:50px;font-weight:700;font-size:15px;
  cursor:pointer;border:2px solid transparent;transition:all .28s ease;
  letter-spacing:.5px;
}
.btn-gold{background:var(--grad-gold);color:#3a2606;box-shadow:0 8px 22px rgba(201,162,75,.35)}
.btn-gold:hover{transform:translateY(-3px);box-shadow:0 14px 30px rgba(201,162,75,.5)}
.btn-outline{background:transparent;border-color:rgba(255,255,255,.6);color:#fff}
.btn-outline:hover{background:#fff;color:var(--navy-800);transform:translateY(-3px)}
.btn-navy{background:var(--navy-700);color:#fff}
.btn-navy:hover{background:var(--navy-800);transform:translateY(-3px);box-shadow:var(--shadow-md)}
.btn-ghost{border-color:var(--navy-600);color:var(--navy-700);background:#fff}
.btn-ghost:hover{background:var(--navy-700);color:#fff;transform:translateY(-3px)}

/* ============================================================
   HEADER
   ============================================================ */
.header{
  position:fixed;top:0;left:0;right:0;z-index:1000;height:var(--header-h);
  display:flex;align-items:center;
  background:rgba(8,26,51,.0);
  transition:background .3s ease,box-shadow .3s ease;
}
.header.scrolled{
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(10px);
  box-shadow:0 6px 24px rgba(8,26,51,.1);
}
.header .container{display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:19px;color:#fff;transition:color .3s}
.header.scrolled .brand{color:var(--navy-800)}
.brand .logo-mark{
  width:38px;height:38px;border-radius:10px;flex:none;
  background:var(--grad-gold);display:flex;align-items:center;justify-content:center;
  color:#3a2606;font-weight:900;font-size:18px;box-shadow:0 4px 12px rgba(201,162,75,.4);
}
.brand small{display:block;font-size:11px;font-weight:600;letter-spacing:1px;opacity:.8;margin-top:-2px}

.nav{display:flex;align-items:center;gap:6px}
.nav a{
  position:relative;padding:8px 14px;font-size:15px;font-weight:600;color:#fff;
  transition:color .25s;
}
.header.scrolled .nav a{color:var(--navy-700)}
.nav a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--grad-gold);transform:scaleX(0);transform-origin:left;
  transition:transform .3s ease;border-radius:2px;
}
.nav a:hover::after,.nav a.active::after{transform:scaleX(1)}
.nav a.btn-gold{color:#3a2606;padding:10px 22px}
.nav a.btn-gold::after{display:none}
.nav a.btn-gold:hover{transform:translateY(-2px)}

.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px;background:none;border:none}
.hamburger span{width:24px;height:2.5px;background:#fff;border-radius:2px;transition:.3s}
.header.scrolled .hamburger span{background:var(--navy-800)}
.hamburger.open span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
.hamburger.open span:nth-child(2){opacity:0}
.hamburger.open span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}

/* mobile drawer */
.mobile-nav{
  position:fixed;top:var(--header-h);left:0;right:0;background:#fff;z-index:999;
  flex-direction:column;padding:14px 24px 26px;gap:4px;
  box-shadow:0 12px 30px rgba(8,26,51,.12);
  transform:translateY(-120%);transition:transform .35s ease;display:flex;
}
.mobile-nav.open{transform:translateY(0)}
.mobile-nav a{padding:13px 6px;font-weight:600;color:var(--navy-700);border-bottom:1px solid var(--line)}
.mobile-nav a.btn-gold{color:#3a2606;justify-content:center;margin-top:10px;border:none}

/* ============================================================
   HERO
   ============================================================ */
.hero{
  position:relative;min-height:100vh;display:flex;align-items:center;
  color:#fff;overflow:hidden;background:var(--navy-900);
}
.hero-bg{position:absolute;inset:0;z-index:0;opacity:0;animation:fadeIn 1.6s ease forwards .2s}
.hero-bg svg{width:100%;height:100%}
.hero-overlay{
  position:absolute;inset:0;z-index:1;
  background:linear-gradient(120deg,rgba(8,26,51,.92) 0%,rgba(8,26,51,.7) 45%,rgba(18,49,99,.55) 100%);
}
.hero .container{position:relative;z-index:2;padding-top:var(--header-h)}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:50px;
  background:rgba(201,162,75,.16);border:1px solid rgba(201,162,75,.45);color:var(--gold-light);
  font-size:14px;font-weight:600;margin-bottom:24px;
  opacity:0;animation:rise .8s ease forwards .4s;
}
.hero-badge .dot{width:8px;height:8px;border-radius:50%;background:var(--gold);animation:pulse 2s infinite}
.hero h1{
  font-size:clamp(34px,5.4vw,62px);line-height:1.18;font-weight:900;letter-spacing:1px;
  text-shadow:0 4px 24px rgba(0,0,0,.3);
}
.hero h1 .line{display:block;overflow:hidden}
.hero h1 .line span{display:block;transform:translateY(110%);animation:lineUp .9s cubic-bezier(.2,.7,.2,1) forwards}
.hero h1 .line:nth-child(1) span{animation-delay:.5s}
.hero h1 .line:nth-child(2) span{animation-delay:.72s}
.hero h1 .accent{
  background:var(--grad-gold);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero p.sub{
  font-size:clamp(16px,2vw,20px);margin-top:22px;max-width:640px;color:rgba(255,255,255,.9);
  opacity:0;animation:rise .8s ease forwards 1s;
}
.hero-cta{display:flex;gap:16px;margin-top:38px;flex-wrap:wrap;opacity:0;animation:rise .8s ease forwards 1.2s}
.hero-stats{
  display:flex;gap:42px;margin-top:54px;flex-wrap:wrap;opacity:0;animation:rise .8s ease forwards 1.4s;
}
.hero-stats .hs{position:relative;padding-left:18px}
.hero-stats .hs::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;background:var(--grad-gold);border-radius:3px}
.hero-stats .num{font-size:30px;font-weight:900;color:#fff;line-height:1}
.hero-stats .lbl{font-size:13px;color:rgba(255,255,255,.78);margin-top:4px}
.scroll-ind{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);z-index:2;color:rgba(255,255,255,.7);font-size:12px;letter-spacing:2px;text-align:center;animation:rise 1s ease forwards 1.6s;opacity:0}
.scroll-ind .mouse{width:22px;height:36px;border:2px solid rgba(255,255,255,.6);border-radius:14px;margin:0 auto 8px;position:relative}
.scroll-ind .mouse::after{content:"";position:absolute;top:7px;left:50%;transform:translateX(-50%);width:3px;height:7px;border-radius:3px;background:var(--gold);animation:scrollDot 1.6s infinite}

/* ============================================================
   信任背书墙
   ============================================================ */
.trust{background:var(--white)}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-bottom:56px}
.trust-card{
  text-align:center;padding:34px 18px;border-radius:var(--radius);
  background:var(--bg-soft);border:1px solid var(--line);transition:transform .3s,box-shadow .3s;
}
.trust-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md)}
.trust-card .tnum{font-size:48px;font-weight:900;color:var(--navy-700);line-height:1}
.trust-card .tnum .suffix{color:var(--gold);font-size:30px}
.trust-card .tlbl{margin-top:10px;color:var(--muted);font-weight:600;font-size:15px}

.logo-wall-title{text-align:center;color:var(--navy-800);font-weight:700;font-size:18px;margin-bottom:26px}
.logo-wall{
  display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
}
.logo-item{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;
  padding:22px 14px;border-radius:var(--radius-sm);background:var(--bg);
  border:1px solid var(--line);filter:grayscale(1);opacity:.72;transition:filter .35s,opacity .35s,transform .35s,box-shadow .35s;
}
.logo-item:hover{filter:grayscale(0);opacity:1;transform:translateY(-4px);box-shadow:var(--shadow-sm);border-color:var(--gold)}
.logo-item .mark{
  width:46px;height:46px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  font-weight:900;font-size:15px;color:#fff;background:var(--grad-navy);letter-spacing:-.5px;
}
.logo-item:hover .mark{background:var(--grad-gold);color:#3a2606}
.logo-item .lname{font-size:13px;font-weight:600;color:var(--navy-700);text-align:center;line-height:1.35}

/* ============================================================
   核心服务入口
   ============================================================ */
.services{background:var(--bg-soft)}
.svc-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.svc-card{
  position:relative;overflow:hidden;border-radius:var(--radius);background:#fff;
  padding:44px 40px;box-shadow:var(--shadow-sm);border:1px solid var(--line);
  transition:transform .35s,box-shadow .35s;
}
.svc-card::before{content:"";position:absolute;top:0;left:0;width:100%;height:5px;background:var(--grad-gold)}
.svc-card:hover{transform:translateY(-10px);box-shadow:var(--shadow-lg)}
.svc-icon{
  width:64px;height:64px;border-radius:16px;background:var(--grad-navy);
  display:flex;align-items:center;justify-content:center;margin-bottom:22px;
}
.svc-icon svg{width:34px;height:34px;stroke:var(--gold-light);fill:none;stroke-width:2}
.svc-card h3{font-size:24px;color:var(--navy-800);font-weight:800;margin-bottom:12px}
.svc-card p{color:var(--muted);margin-bottom:22px}
.svc-card ul.check{margin-bottom:24px;display:grid;gap:9px}
.svc-card ul.check li{position:relative;padding-left:26px;color:var(--ink);font-size:15px}
.svc-card ul.check li::before{content:"";position:absolute;left:0;top:9px;width:16px;height:9px;border-left:2.5px solid var(--gold);border-bottom:2.5px solid var(--gold);transform:rotate(-45deg)}
.svc-link{display:inline-flex;align-items:center;gap:7px;color:var(--navy-700);font-weight:700;transition:gap .25s}
.svc-link:hover{gap:12px;color:var(--gold)}

/* ============================================================
   成功案例精选
   ============================================================ */
.cases{background:#fff}
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.case-card{
  border-radius:var(--radius);overflow:hidden;background:var(--bg);border:1px solid var(--line);
  transition:transform .35s,box-shadow .35s;display:flex;flex-direction:column;
}
.case-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-md)}
.case-photo{height:200px;position:relative;overflow:hidden;display:flex;align-items:center;justify-content:center}
.case-photo .avatar{
  width:84px;height:84px;border-radius:50%;border:3px solid #fff;
  display:flex;align-items:center;justify-content:center;font-size:30px;font-weight:900;color:#fff;
  box-shadow:var(--shadow-md);z-index:2;
}
.case-photo .ph-pattern{position:absolute;inset:0;opacity:.25}
.case-body{padding:22px 24px 26px}
.case-tag{display:inline-block;font-size:12px;font-weight:700;color:var(--navy-700);background:rgba(26,63,122,.1);padding:4px 12px;border-radius:50px;margin-bottom:12px}
.case-body h4{font-size:18px;color:var(--navy-800);font-weight:800;margin-bottom:4px}
.case-body .meta{font-size:13px;color:var(--gold);font-weight:700;margin-bottom:10px}
.case-body p{color:var(--muted);font-size:14px}
.cases-more{text-align:center;margin-top:44px}

/* ============================================================
   为什么选择我们
   ============================================================ */
.why{background:var(--grad-navy);color:#fff}
.why .section-head h2{color:#fff}
.why .section-head p{color:rgba(255,255,255,.78)}
.why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.why-card{
  text-align:center;padding:38px 24px;border-radius:var(--radius);
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);
  transition:transform .3s,background .3s;
}
.why-card:hover{transform:translateY(-8px);background:rgba(255,255,255,.12)}
.why-icon{
  width:70px;height:70px;margin:0 auto 20px;border-radius:18px;
  background:var(--grad-gold);display:flex;align-items:center;justify-content:center;
  transition:transform .4s;
}
.why-card:hover .why-icon{transform:rotate(8deg) scale(1.06)}
.why-icon svg{width:34px;height:34px;stroke:#3a2606;fill:none;stroke-width:2}
.why-card h4{font-size:19px;font-weight:800;margin-bottom:10px}
.why-card p{font-size:14px;color:rgba(255,255,255,.78)}

/* ============================================================
   联系/转化区（首页轻量表单）
   ============================================================ */
.cta-band{background:var(--bg-soft)}
.cta-inner{
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
  background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-md);
}
.cta-left{padding:48px 44px;background:var(--grad-navy);color:#fff}
.cta-left h3{font-size:28px;font-weight:800;margin-bottom:14px}
.cta-left p{color:rgba(255,255,255,.85);margin-bottom:26px}
.cta-contact{display:grid;gap:14px;margin-top:10px}
.cta-contact .ci{display:flex;align-items:center;gap:12px;font-size:15px}
.cta-contact .ci svg{width:22px;height:22px;stroke:var(--gold-light);fill:none;stroke-width:2;flex:none}
.cta-right{padding:48px 44px}

/* ============================================================
   FORMS
   ============================================================ */
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{margin-bottom:18px;position:relative}
.field label{display:block;font-size:14px;font-weight:600;color:var(--navy-700);margin-bottom:7px}
.field label .req{color:var(--orange);margin-left:3px}
.field input,.field select,.field textarea{
  width:100%;padding:13px 15px;border:1.5px solid var(--line);border-radius:var(--radius-sm);
  font-family:inherit;font-size:15px;color:var(--ink);background:#fff;transition:border-color .25s,box-shadow .25s;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--navy-500);box-shadow:0 0 0 4px rgba(26,63,122,.1);
}
.field textarea{resize:vertical;min-height:96px}
.field.invalid input,.field.invalid select,.field.invalid textarea{border-color:#e25555;box-shadow:0 0 0 4px rgba(226,85,85,.1)}
.field .err{display:none;color:#e25555;font-size:13px;margin-top:6px}
.field.invalid .err{display:block}
.form-note{font-size:13px;color:var(--muted);margin-top:4px}
.form-success{
  display:none;align-items:center;gap:12px;padding:16px 18px;border-radius:var(--radius-sm);
  background:rgba(40,160,90,.1);border:1px solid rgba(40,160,90,.35);color:#1f7a45;font-weight:600;margin-top:8px;
}
.form-success.show{display:flex;animation:rise .4s ease}
.form-success svg{width:22px;height:22px;flex:none}

/* ============================================================
   FOOTER
   ============================================================ */
.footer{background:var(--navy-900);color:rgba(255,255,255,.8);padding:64px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;margin-bottom:44px}
.footer .brand{color:#fff;margin-bottom:18px}
.footer .f-about{font-size:14px;line-height:1.8;max-width:300px}
.footer h5{color:#fff;font-size:16px;font-weight:700;margin-bottom:18px;position:relative;padding-left:14px}
.footer h5::before{content:"";position:absolute;left:0;top:4px;bottom:4px;width:3px;background:var(--grad-gold);border-radius:3px}
.footer-links li{margin-bottom:11px}
.footer-links a{font-size:14px;transition:color .25s,padding-left .25s;display:inline-block}
.footer-links a:hover{color:var(--gold-light);padding-left:5px}
.footer-contact li{display:flex;gap:10px;font-size:14px;margin-bottom:13px;align-items:flex-start}
.footer-contact svg{width:18px;height:18px;stroke:var(--gold-light);fill:none;stroke-width:2;flex:none;margin-top:3px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding-top:22px;display:flex;
  justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:13px;color:rgba(255,255,255,.55);
}
.footer-social{display:flex;gap:12px}
.footer-social a{width:38px;height:38px;border-radius:50%;background:rgba(255,255,255,.08);display:flex;align-items:center;justify-content:center;transition:background .25s,transform .25s}
.footer-social a:hover{background:var(--gold);transform:translateY(-3px)}
.footer-social svg{width:18px;height:18px;stroke:#fff;fill:none;stroke-width:2}
.footer-social a:hover svg{stroke:#3a2606}

/* ============================================================
   PAGE HERO (inner pages)
   ============================================================ */
.page-hero{
  position:relative;padding:140px 0 80px;color:#fff;overflow:hidden;
  background:var(--grad-navy);
}
.page-hero .ph-bg{position:absolute;inset:0;opacity:.18}
.page-hero .ph-bg svg{width:100%;height:100%}
.page-hero .container{position:relative;z-index:2}
.page-hero .crumb{font-size:13px;color:rgba(255,255,255,.7);margin-bottom:14px;letter-spacing:1px}
.page-hero .crumb a:hover{color:var(--gold-light)}
.page-hero h1{font-size:clamp(30px,4.4vw,48px);font-weight:900;letter-spacing:1px}
.page-hero p{margin-top:14px;max-width:620px;color:rgba(255,255,255,.85);font-size:17px}

/* about */
.about-story{display:grid;grid-template-columns:1.1fr 1fr;gap:54px;align-items:center}
.about-story .txt h3{font-size:26px;color:var(--navy-800);font-weight:800;margin-bottom:18px}
.about-story .txt p{color:var(--muted);margin-bottom:16px}
.value-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:30px}
.value-card{padding:26px 22px;border-radius:var(--radius);background:var(--bg-soft);border:1px solid var(--line);text-align:center}
.value-card .vc-i{width:52px;height:52px;margin:0 auto 14px;border-radius:14px;background:var(--grad-gold);display:flex;align-items:center;justify-content:center;color:#3a2606;font-weight:900;font-size:20px}
.value-card h4{color:var(--navy-800);font-weight:800;font-size:18px;margin-bottom:6px}
.value-card p{font-size:14px;color:var(--muted)}

.timeline{position:relative;margin-top:10px;padding-left:30px}
.timeline::before{content:"";position:absolute;left:8px;top:6px;bottom:6px;width:3px;background:var(--grad-navy);border-radius:3px}
.tl-item{position:relative;padding:0 0 30px 22px}
.tl-item::before{content:"";position:absolute;left:-26px;top:6px;width:16px;height:16px;border-radius:50%;background:var(--gold);border:3px solid #fff;box-shadow:0 0 0 3px rgba(201,162,75,.3)}
.tl-item .yr{font-weight:900;color:var(--navy-700);font-size:17px}
.tl-item p{color:var(--muted);font-size:15px}

.team-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.team-card{background:#fff;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-sm);transition:transform .3s,box-shadow .3s}
.team-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md)}
.team-photo{height:210px;display:flex;align-items:center;justify-content:center;position:relative}
.team-avatar{width:96px;height:96px;border-radius:50%;border:3px solid #fff;box-shadow:var(--shadow-md);display:flex;align-items:center;justify-content:center;font-size:34px;font-weight:900;color:#fff;z-index:2}
.team-body{padding:22px 24px 26px;text-align:center}
.team-body h4{font-size:19px;color:var(--navy-800);font-weight:800}
.team-body .role{color:var(--gold);font-weight:700;font-size:14px;margin:4px 0 12px}
.team-body p{font-size:14px;color:var(--muted);text-align:left}

.cert-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.cert-card{border-radius:var(--radius);overflow:hidden;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-sm)}
.cert-visual{height:170px;display:flex;align-items:center;justify-content:center;background:var(--grad-navy);position:relative}
.cert-visual .seal{width:84px;height:84px;border-radius:50%;border:3px solid var(--gold-light);display:flex;align-items:center;justify-content:center;color:var(--gold-light);font-weight:900;font-size:14px;text-align:center;line-height:1.3}
.cert-card .c-body{padding:20px 22px}
.cert-card .c-body h4{color:var(--navy-800);font-weight:800;font-size:17px;margin-bottom:8px}
.cert-card .c-body p{font-size:14px;color:var(--muted)}

/* service detail */
.svc-detail-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.svc-detail{display:flex;gap:18px;padding:26px;border-radius:var(--radius);background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-sm);transition:transform .3s,box-shadow .3s}
.svc-detail:hover{transform:translateY(-5px);box-shadow:var(--shadow-md)}
.svc-detail .sd-i{flex:none;width:56px;height:56px;border-radius:14px;background:var(--grad-navy);display:flex;align-items:center;justify-content:center}
.svc-detail .sd-i svg{width:28px;height:28px;stroke:var(--gold-light);fill:none;stroke-width:2}
.svc-detail h4{color:var(--navy-800);font-weight:800;font-size:18px;margin-bottom:6px}
.svc-detail p{font-size:14px;color:var(--muted)}

.flow{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;counter-reset:step;margin-top:10px}
.flow-step{position:relative;padding:26px 18px 22px;border-radius:var(--radius);background:var(--bg-soft);border:1px solid var(--line);text-align:center}
.flow-step::before{counter-increment:step;content:counter(step);position:absolute;top:-16px;left:50%;transform:translateX(-50%);width:34px;height:34px;border-radius:50%;background:var(--grad-gold);color:#3a2606;font-weight:900;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-sm)}
.flow-step h5{color:var(--navy-800);font-weight:800;font-size:16px;margin:6px 0 8px}
.flow-step p{font-size:13px;color:var(--muted)}

.faq-item{border:1px solid var(--line);border-radius:var(--radius-sm);margin-bottom:14px;overflow:hidden;background:#fff}
.faq-q{padding:18px 22px;font-weight:700;color:var(--navy-800);cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:14px}
.faq-q .ico{flex:none;width:24px;height:24px;border-radius:50%;background:var(--bg-soft);display:flex;align-items:center;justify-content:center;color:var(--navy-600);transition:transform .3s;font-weight:900}
.faq-item.open .faq-q .ico{transform:rotate(45deg);background:var(--grad-gold);color:#3a2606}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease;padding:0 22px;color:var(--muted);font-size:15px}
.faq-item.open .faq-a{max-height:300px;padding:0 22px 20px}

.contact-wrap{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.contact-info .ci{display:flex;gap:14px;margin-bottom:22px}
.contact-info .ci .ci-i{width:48px;height:48px;flex:none;border-radius:12px;background:var(--grad-navy);display:flex;align-items:center;justify-content:center}
.contact-info .ci .ci-i svg{width:22px;height:22px;stroke:var(--gold-light);fill:none;stroke-width:2}
.contact-info .ci h4{color:var(--navy-800);font-weight:800;font-size:16px;margin-bottom:3px}
.contact-info .ci p{color:var(--muted);font-size:14px}
.map-box{height:320px;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:linear-gradient(135deg,#dce6f2,#c3d4ea);position:relative;display:flex;align-items:center;justify-content:center}
.map-box .pin{position:absolute;display:flex;flex-direction:column;align-items:center;z-index:2}
.map-box .pin .dot{width:18px;height:18px;border-radius:50%;background:var(--orange);border:3px solid #fff;box-shadow:0 0 0 6px rgba(232,137,58,.3)}
.map-box .pin .lbl{margin-top:8px;background:#fff;padding:5px 12px;border-radius:50px;font-size:13px;font-weight:700;color:var(--navy-800);box-shadow:var(--shadow-sm)}
.map-box .roads{position:absolute;inset:0;opacity:.5}

/* case filter */
.filter-bar{display:flex;justify-content:center;gap:12px;margin-bottom:40px;flex-wrap:wrap}
.filter-btn{padding:10px 26px;border-radius:50px;border:1.5px solid var(--line);background:#fff;font-weight:700;color:var(--navy-700);cursor:pointer;transition:all .25s;font-family:inherit;font-size:15px}
.filter-btn.active,.filter-btn:hover{background:var(--navy-700);color:#fff;border-color:var(--navy-700)}
.case-grid.full{grid-template-columns:repeat(3,1fr)}

.testi{background:var(--bg-soft)}
.testi-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.testi-card{background:#fff;border-radius:var(--radius);padding:30px 28px;border:1px solid var(--line);box-shadow:var(--shadow-sm);position:relative}
.testi-card .quote{font-size:42px;color:var(--gold);line-height:1;font-family:Georgia,serif;position:absolute;top:18px;right:24px;opacity:.3}
.testi-card p{font-size:15px;color:var(--ink);margin-bottom:20px;position:relative;z-index:1}
.testi-author{display:flex;align-items:center;gap:12px}
.testi-author .ta-av{width:46px;height:46px;border-radius:50%;background:var(--grad-navy);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:900}
.testi-author .ta-n{font-weight:800;color:var(--navy-800);font-size:15px}
.testi-author .ta-r{font-size:13px;color:var(--muted)}

/* reveal on scroll */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* ============================================================
   ANIMATIONS
   ============================================================ */
@keyframes fadeIn{to{opacity:1}}
@keyframes rise{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:none}}
@keyframes lineUp{to{transform:translateY(0)}}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}
@keyframes scrollDot{0%{opacity:1;transform:translate(-50%,0)}100%{opacity:0;transform:translate(-50%,12px)}}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width:1080px){
  .trust-grid{grid-template-columns:repeat(2,1fr)}
  .logo-wall{grid-template-columns:repeat(3,1fr)}
  .why-grid{grid-template-columns:repeat(2,1fr)}
  .team-grid{grid-template-columns:repeat(2,1fr)}
  .cert-grid{grid-template-columns:repeat(2,1fr)}
  .case-grid,.case-grid.full{grid-template-columns:repeat(2,1fr)}
  .testi-grid{grid-template-columns:repeat(2,1fr)}
  .flow{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:860px){
  .nav{display:none}
  .hamburger{display:flex}
  section{padding:60px 0}
  .section-head h2{font-size:27px}
  .svc-grid,.about-story,.cta-inner,.contact-wrap{grid-template-columns:1fr;gap:32px}
  .form-row{grid-template-columns:1fr}
  .value-cards{grid-template-columns:1fr}
  .about-story .visual{order:-1}
}
@media (max-width:560px){
  .container{padding:0 18px}
  .trust-grid,.logo-wall,.why-grid,.team-grid,.cert-grid,.case-grid,.case-grid.full,.testi-grid{grid-template-columns:1fr}
  .flow{grid-template-columns:1fr}
  .hero-stats{gap:26px}
  .hero-cta{flex-direction:column;align-items:stretch}
  .footer-grid{grid-template-columns:1fr;gap:30px}
}

/* ============ 联系页：填表解锁门槛 ============ */
.form-error{display:none;margin-top:14px;padding:10px 14px;border-radius:8px;background:#fdecea;color:#c0392b;font-size:14px;border:1px solid #f5c6c0}
.form-error.show{display:block}
.contact-gate{margin-bottom:24px}
.gate-card{background:linear-gradient(135deg,var(--navy-800) 0%,var(--navy-600) 100%);color:#fff;border-radius:14px;padding:22px 26px;display:flex;align-items:center;gap:18px;box-shadow:0 10px 30px rgba(12,36,71,.18)}
.gate-card .gate-ic{font-size:34px;line-height:1;flex:none}
.gate-card h4{margin:0 0 6px;font-size:18px;font-weight:800}
.gate-card p{margin:0;font-size:14px;color:#cdd9ec;line-height:1.6}
#unlock-contact{animation:fadeUp .5s ease both}
@keyframes fadeUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}