:root{
  --ink:#0a1c14; --ink2:#10291f; --ink3:#173b2d;
  --brand:#2fc456; --brand2:#7ce8a0; --brand-deep:#0e8a3e;
  --gold:#f0c24b;
  --bg:#ffffff; --bg2:#f5f8f6; --line:#e3e9e5;
  --t1:#101b15; --t2:#42544b; --t3:#7a8b82;
  --r:14px;
  --shadow:0 10px 30px rgba(10,28,20,.08);
  --shadow-lg:0 24px 60px rgba(6,20,14,.16);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--t1);background:var(--bg);line-height:1.7;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{width:100%;max-width:1120px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums;letter-spacing:-.01em}

/* ---------- announce ---------- */
.announce{background:var(--ink);color:#cfe9d8;font-size:13px;text-align:center;padding:8px 16px}
.announce b{color:var(--brand2)}

/* ---------- nav ---------- */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;gap:28px;height:64px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:-.02em}
.logo img{height:34px;width:auto}
.logo i{font-style:normal;color:var(--brand-deep)}
.nav-links{display:flex;gap:26px;margin:0 auto;font-size:14.5px;color:var(--t2)}
.nav-links a:hover{color:var(--brand-deep)}
.nav-right{display:flex;align-items:center;gap:16px}
.nav-tel{font-size:14.5px;font-weight:700;color:var(--t1)}
.nav-tel small{display:block;font-weight:400;font-size:11px;color:var(--t3);letter-spacing:.06em}
.burger{display:none;background:none;border:0;font-size:22px;color:var(--t1);cursor:pointer;padding:4px 8px}
.m-menu{display:none}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:700;font-size:15px;border-radius:10px;padding:12px 22px;border:1px solid transparent;cursor:pointer;transition:.18s;white-space:nowrap}
.btn-primary{background:var(--brand);color:#04150c;box-shadow:0 6px 18px rgba(47,196,86,.35)}
.btn-primary:hover{background:#29b34d;transform:translateY(-1px)}
.btn-ghost{border-color:rgba(255,255,255,.28);color:#fff}
.btn-ghost:hover{border-color:rgba(255,255,255,.6)}
.btn-outline{border-color:var(--line);color:var(--t1);background:#fff}
.btn-outline:hover{border-color:var(--brand);color:var(--brand-deep)}

/* ---------- hero ---------- */
.hero{position:relative;background:radial-gradient(1100px 620px at 78% -10%,#1d4a35 0%,rgba(29,74,53,0) 60%),radial-gradient(900px 500px at -10% 110%,#123526 0%,rgba(18,53,38,0) 55%),var(--ink);color:#fff;overflow:hidden}
.hero-inner{display:grid;grid-template-columns:minmax(0,1.02fr) minmax(0,.98fr);gap:48px;align-items:center;padding-top:84px;padding-bottom:92px}
.hero .badge{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:#bdf0cf;background:rgba(47,196,86,.14);border:1px solid rgba(47,196,86,.35);border-radius:99px;padding:7px 14px;margin-bottom:22px}
.hero .badge .dot{width:7px;height:7px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 4px rgba(47,196,86,.18)}
.hero h1{font-size:clamp(30px,4.6vw,52px);line-height:1.22;letter-spacing:-.02em;font-weight:800;margin-bottom:18px}
.hero h1 em{font-style:normal;color:var(--brand2)}
.hero .sub{font-size:17px;color:#a8c4b4;max-width:520px;margin-bottom:30px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:26px}
.hero-trust{display:flex;gap:10px 22px;flex-wrap:wrap;font-size:13px;color:#8fb3a1}
.hero-trust span::before{content:"✓ ";color:var(--brand);font-weight:800}
.hero-cap{margin-top:18px;padding-top:15px;border-top:1px solid rgba(255,255,255,.1);font-size:12.5px;color:#7fa391;max-width:520px}

/* hero visual: google serp + inquiry card */
.hero-vis{position:relative;min-height:380px}
.serp{background:#fff;border-radius:16px;padding:18px 20px;color:var(--t1);box-shadow:var(--shadow-lg);max-width:430px}
.serp-bar{display:flex;align-items:center;gap:10px;background:#f1f4f2;border:1px solid var(--line);border-radius:99px;padding:9px 16px;font-size:13.5px;color:var(--t2);margin-bottom:16px}
.serp-bar b{color:var(--t1);font-weight:600}
.serp-item{padding:10px 2px 12px;border-bottom:1px solid #eef2ef}
.serp-item:last-child{border-bottom:0}
.serp-item .u{font-size:11.5px;color:#5f6f66}
.serp-item .t{font-size:15px;font-weight:700;color:#1a67c9;line-height:1.45}
.serp-item .d{font-size:12.5px;color:var(--t3);line-height:1.55;margin-top:2px}
.serp-item .rank{display:inline-block;font-size:10.5px;font-weight:800;color:#0b7a3c;background:#e4f7ea;border-radius:5px;padding:1px 7px;margin-right:6px;vertical-align:1px}
.inq{position:absolute;right:0;bottom:-26px;background:#fff;border-radius:16px;box-shadow:var(--shadow-lg);padding:14px 16px;width:288px;color:var(--t1);animation:float 4.5s ease-in-out infinite}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-9px)}}
.inq .h{display:flex;align-items:center;gap:9px;font-size:12.5px;font-weight:700;color:var(--t2);margin-bottom:10px}
.inq .h .ic{width:30px;height:30px;border-radius:9px;background:#e8f8ee;display:flex;align-items:center;justify-content:center;font-size:15px}
.inq .msg{background:#f4f7f5;border-radius:10px;padding:9px 12px;font-size:12.5px;line-height:1.6;color:var(--t2);margin-bottom:8px}
.inq .msg b{color:var(--t1)}
.inq .tag{display:inline-block;font-size:10.5px;font-weight:700;color:#0b7a3c;background:#e4f7ea;border-radius:5px;padding:2px 8px}

/* ---------- section base ---------- */
section{padding:84px 0}
.sec-head{max-width:660px;margin-bottom:44px}
.sec-head .eyebrow{font-size:12.5px;font-weight:800;letter-spacing:.16em;color:var(--brand-deep);text-transform:uppercase;margin-bottom:12px}
.sec-head h2{font-size:clamp(24px,3.2vw,36px);line-height:1.3;letter-spacing:-.015em;font-weight:800;margin-bottom:12px}
.sec-head p{color:var(--t2);font-size:16px}
.bg2{background:var(--bg2)}

/* ---------- stats ---------- */
.stats{border-top:1px solid rgba(255,255,255,.1);background:var(--ink2);color:#fff;padding:0}
.stats .container{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;padding-top:30px;padding-bottom:30px}
.stat b{display:block;font-size:clamp(24px,3vw,34px);font-weight:800;letter-spacing:-.02em;color:var(--brand2)}
.stat span{font-size:13px;color:#93b2a3}

/* ---------- pain ---------- */
.pains{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.pain{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:26px 24px;transition:.2s}
.pain:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
.pain .q{font-size:16.5px;font-weight:800;margin:12px 0 8px}
.pain p{font-size:14px;color:var(--t2)}
.pain .fix{margin-top:14px;font-size:13.5px;font-weight:600;color:var(--brand-deep);background:#e9f7ee;border-radius:8px;padding:8px 12px}
.pain .ic{width:42px;height:42px;border-radius:11px;background:#eaf7ef;display:flex;align-items:center;justify-content:center;font-size:20px}

/* ---------- service ---------- */
.svc-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:22px}
.svc{border-radius:18px;padding:30px 28px;position:relative;overflow:hidden}
.svc.free{background:linear-gradient(160deg,#0e2c1f,#123a29);color:#fff}
.svc.maint{background:#fff;border:1px solid var(--line)}
.svc .tagline{position:absolute;top:22px;right:22px;font-size:11.5px;font-weight:800;border-radius:99px;padding:5px 13px;letter-spacing:.04em}
.svc.free .tagline{background:rgba(240,194,75,.16);color:var(--gold);border:1px solid rgba(240,194,75,.4)}
.svc.maint .tagline{background:#eaf7ef;color:var(--brand-deep)}
.svc h3{font-size:20px;font-weight:800;margin-bottom:6px}
.svc .price{font-size:13px;color:var(--t3);margin-bottom:18px}
.svc.free .price{color:#9dbdaf}
.svc ul{list-style:none;display:grid;gap:10px;font-size:14px}
.svc.free ul{color:#c9ded2}
.svc.maint ul{color:var(--t2)}
.svc li{display:flex;gap:9px;line-height:1.6}
.svc li::before{content:"✓";font-weight:800;color:var(--brand);flex:0 0 auto}
.svc .foot{margin-top:20px;font-size:12.5px;color:var(--t3)}
.svc.free .foot{color:#7fa391}

/* ---------- cases ---------- */
.cases{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.case{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;transition:.2s}
.case:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
.case .top{padding:20px 22px 16px;border-bottom:1px solid #eef2ef}
.case .factory{font-size:16px;font-weight:800}
.case .industry{font-size:12.5px;color:var(--t3);margin-top:2px}
.case .nums{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:1px;background:#eef2ef}
.case .n{background:#fff;padding:16px 22px}
.case .n b{display:block;font-size:21px;font-weight:800;color:var(--brand-deep);letter-spacing:-.02em}
.case .n span{font-size:12px;color:var(--t3)}
.case .quote{padding:16px 22px 18px;font-size:13.5px;color:var(--t2);background:var(--bg2)}
.case .quote b{color:var(--t1)}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;counter-reset:s}
.step{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:24px 22px}
.step::before{counter-increment:s;content:"0" counter(s);font-size:13px;font-weight:800;color:var(--brand-deep);background:#eaf7ef;border-radius:8px;padding:3px 10px;display:inline-block;margin-bottom:14px}
.step h4{font-size:15.5px;font-weight:800;margin-bottom:6px}
.step p{font-size:13.5px;color:var(--t2)}

/* ---------- posts ---------- */
.posts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.post{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:24px;transition:.2s}
.post:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
.post .k{font-size:11.5px;font-weight:800;letter-spacing:.08em;color:var(--brand-deep);text-transform:uppercase}
.post h4{font-size:16px;font-weight:800;margin:10px 0 8px;line-height:1.5}
.post p{font-size:13.5px;color:var(--t2)}
.post .more{display:inline-block;margin-top:14px;font-size:13.5px;font-weight:700;color:var(--brand-deep)}

/* ---------- faq ---------- */
.faq{max-width:780px}
.faq details{border:1px solid var(--line);border-radius:12px;background:#fff;padding:0 22px;margin-bottom:12px}
.faq summary{cursor:pointer;font-weight:700;font-size:15.5px;padding:18px 0;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:12px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:20px;color:var(--brand-deep);font-weight:600;transition:.2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq .a{padding:0 0 18px;color:var(--t2);font-size:14px}

/* ---------- cta ---------- */
/* ---------- CTA（全宽深色带） ---------- */
#contact{background:radial-gradient(1000px 480px at 84% -25%,#1d4a35 0%,rgba(29,74,53,0) 62%),var(--ink);padding:78px 0}
.cta{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:56px;align-items:center;color:#fff}
.cta h2{font-size:clamp(25px,3.1vw,36px);font-weight:800;letter-spacing:-.015em;line-height:1.28;margin-bottom:16px}
.cta h2 em{font-style:normal;display:inline-block;background:rgba(124,232,160,.15);border:1px solid rgba(124,232,160,.38);color:var(--brand2);padding:2px 14px;border-radius:12px;white-space:nowrap}
.cta p{color:#a8c4b4;font-size:15.5px;margin-bottom:28px;max-width:54ch}
.cta-act{display:flex;gap:14px;flex-wrap:wrap}
.qr-card{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);border-radius:18px;padding:24px 24px 20px;text-align:center;justify-self:center}
.qr-card img{width:150px;height:auto;border-radius:12px;margin:0 auto 14px;background:#fff;padding:7px;box-sizing:content-box}
.qr-card p{font-size:12.5px;color:#9dbdaf;margin:0}

/* ---------- footer ---------- */
footer{background:#f2f8f4;color:#42544b;padding:52px 0 30px;font-size:13.5px;border-top:1px solid var(--line)}
.foot-grid{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr) minmax(0,1fr) minmax(0,1fr);gap:32px;margin-bottom:36px}
.foot-grid h5{color:#101b15;font-size:13px;letter-spacing:.1em;margin-bottom:14px;font-weight:700}
.foot-grid a{display:block;margin-bottom:8px}
.foot-grid a:hover{color:#0e8a3e}
.foot-brand{display:flex;align-items:center;gap:10px;color:#101b15;font-weight:800;font-size:18px;margin-bottom:12px}
.foot-brand img{height:40px;width:auto}
.foot-tel{color:#0e8a3e;font-size:19px;font-weight:800;letter-spacing:.02em}
.foot-bottom{border-top:1px solid #dfe8e2;padding-top:22px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:12.5px;color:#5f7266}

/* ---------- reveal ---------- */
html.js .reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease}
html.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){html.js .reveal{opacity:1;transform:none;transition:none}.inq{animation:none}}

/* ---------- products ---------- */
.prods{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.prod{position:relative;background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px 26px 22px;display:flex;flex-direction:column;transition:.22s;overflow:hidden}
.prod::after{content:"";position:absolute;inset:0 0 auto 0;height:3px;background:linear-gradient(90deg,var(--brand),var(--brand2));opacity:0;transition:.22s}
.prod:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#d3e2d8}
.prod:hover::after{opacity:1}
.prod .head{display:flex;align-items:center;gap:13px;margin-bottom:14px}
.prod .mark{width:46px;height:46px;border-radius:13px;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:19px;flex:0 0 auto}
.prod .mark.g{background:linear-gradient(150deg,#2fc456,#0e8a3e);color:#04150c}
.prod .mark.p{background:linear-gradient(150deg,#1f3d5c,#0d2033);color:#8fd0ff}
.prod .mark.s{background:linear-gradient(150deg,#7d5cff,#4a2fd0);color:#fff}
.prod .mark.o{background:linear-gradient(150deg,#ff9d4d,#e0641a);color:#fff}
.prod h3{font-size:17.5px;font-weight:800;letter-spacing:-.01em;line-height:1.3}
.prod .en{font-size:11.5px;color:var(--t3);letter-spacing:.06em;text-transform:uppercase;font-weight:700}
.prod .desc{font-size:14px;color:var(--t2);margin-bottom:16px}
.prod .chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.prod .chip{font-size:12px;font-weight:700;color:var(--brand-deep);background:#eaf7ef;border-radius:7px;padding:4px 10px}
.prod .chip.dark{color:#8fd0ff;background:#eef4fa}
.prod .chip.vio{color:#5b3fd6;background:#f0edff}
.prod .chip.ora{color:#b4491a;background:#fff0e6}
.prod .go{margin-top:auto;font-size:14px;font-weight:700;color:var(--brand-deep);display:inline-flex;align-items:center;gap:6px}
.prod .go:hover{gap:10px}
.prod .go::after{content:"→";transition:.2s}
.prod.self{background:linear-gradient(160deg,#0e2c1f,#123a29);border-color:#1d4a35}
.prod.self h3{color:#fff}
.prod.self .en{color:#7fa391}
.prod.self .desc{color:#b9d4c6}
.prod.self .chip{background:rgba(47,196,86,.16);color:var(--brand2)}
.prod.self .go{color:var(--brand2)}
.eco-note{margin-top:22px;font-size:13.5px;color:var(--t3);text-align:center}

/* ---------- responsive ---------- */
@media (max-width:980px){
  .hero-inner{grid-template-columns:minmax(0,1fr);gap:40px;padding-top:60px;padding-bottom:70px}
  .hero-vis{min-height:0}
  .serp{max-width:100%}
  .inq{position:static;margin-top:16px;width:100%;animation:none}
  .stats .container{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px 12px}
  .pains,.cases,.posts{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
  .steps{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
  .svc-grid{grid-template-columns:minmax(0,1fr)}
  .cta{grid-template-columns:minmax(0,1fr);gap:36px;text-align:center}
  #contact{padding:60px 0}
  .cta p{max-width:none;margin-left:auto;margin-right:auto}
  .cta-act{justify-content:center}
  .foot-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
}
@media (max-width:640px){
  section{padding:60px 0}
  .nav-links{display:none}
  .nav-tel{display:none}
  .burger{display:block}
  .nav-inner{gap:12px}
  .nav-right{gap:10px}
  .nav-right .btn{padding:10px 14px;font-size:13.5px}
  .m-menu.open{display:block;position:absolute;top:100%;left:0;right:0;background:#fff;z-index:49;border-bottom:1px solid var(--line);padding:10px 24px 20px;box-shadow:0 14px 30px rgba(10,28,20,.12)}
  .m-menu a{display:block;padding:12px 0;font-size:16px;font-weight:600;border-bottom:1px solid #f0f3f1}
  .pains,.cases,.posts,.steps,.prods{grid-template-columns:minmax(0,1fr)}
  .stats .container{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
  .hero-cta .btn{width:100%}
  #contact{padding:48px 0}
  .foot-grid{grid-template-columns:minmax(0,1fr)}
}

/* ---------- 文章页 ---------- */
.crumb{font-size:13px;color:var(--t3);margin:30px 0 20px}
.crumb a{color:var(--t2)}
.crumb a:hover{color:var(--brand-deep)}
.art{max-width:800px}
.art h1{font-size:clamp(25px,3.4vw,38px);line-height:1.35;letter-spacing:-.015em;font-weight:800;margin-bottom:10px}
.art .meta{font-size:13px;color:var(--t3);margin-bottom:30px}
.art h2{font-size:21px;font-weight:800;margin:36px 0 14px;padding-left:12px;border-left:4px solid var(--brand);line-height:1.4}
.art p{margin:0 0 15px;font-size:15.5px;line-height:1.95;color:#26362e}
.art ul{margin:0 0 16px;padding-left:22px;font-size:15px;line-height:1.95;color:#26362e}
.art li{margin-bottom:7px}
.art li b,.art p b{color:var(--t1)}
.art .tip{background:#eaf7ee;border-radius:12px;padding:14px 18px;font-size:14px;line-height:1.8;color:#0b5c31;margin:20px 0}
.art-cta{background:radial-gradient(600px 300px at 85% -20%,#1d4a35 0%,rgba(29,74,53,0) 60%),var(--ink);color:#fff;border-radius:18px;padding:32px 30px;margin:44px 0 0}
.art-cta h3{font-size:20px;font-weight:800;margin-bottom:10px}
.art-cta p{color:#a8c4b4;font-size:14px;margin-bottom:18px}
.art-cta .btn{margin-right:12px;margin-bottom:10px}
.rel{margin-top:56px}
.rel h2{font-size:22px;font-weight:800;margin-bottom:20px}

/* ---- 2026-10-11 手机端溢出加固 ---- */
.hero-inner>*,.cta>*,.svc-grid>*,.foot-grid>*,.prods>*,.pains>*,.cases>*,.posts>*,.steps>*,.stats .container>*{min-width:0}
.serp-bar,.serp-item,.inq,.hero-cap,.foot-grid p{overflow-wrap:anywhere;word-break:break-word}
.serp-item b,.serp-item em{overflow-wrap:anywhere}
img,svg,video{max-width:100%}
.inq{max-width:100%}