:root{
  --green:#0b9b78;
  --green-2:#13b68a;
  --green-3:#eaf9f4;
  --green-4:#f5fcf9;
  --dark:#0b2032;
  --text:#273b4b;
  --muted:#718596;
  --line:#dbe9e5;
  --card:#fff;
  --soft:#f8fbfa;
  --pdf:#e74f57;
  --shadow:0 18px 46px rgba(9,72,58,.075);
  --container:1320px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  color:var(--text);
  background:#fff;
  font-size:16px;
  line-height:1.7;
}
a{text-decoration:none;color:inherit}
button,input{font:inherit}
svg{fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.container{width:min(var(--container),calc(100% - 42px));margin:auto}
.skip-link{position:fixed;top:-60px;left:16px;z-index:9999;background:#fff;padding:10px 14px;border-radius:10px;box-shadow:var(--shadow)}
.skip-link:focus{top:16px}

/* Header */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(219,233,229,.88);
}
.nav-shell{height:82px;display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:12px;min-width:245px}
.brand-mark{
  width:48px;height:48px;border-radius:14px;
  background:linear-gradient(145deg,#12bc8d,#078c6e);
  display:grid;place-items:center;color:#fff;
  box-shadow:0 12px 24px rgba(11,155,120,.22)
}
.brand-mark svg{width:31px;height:31px;stroke-width:2.1}
.brand-copy{display:flex;flex-direction:column;line-height:1.25}
.brand-copy strong{font-size:21px;color:var(--dark)}
.brand-copy small{font-size:13px;color:var(--muted);margin-top:4px}
.main-nav{display:flex;justify-content:center;gap:28px;flex:1}
.main-nav a{
  position:relative;color:#405462;font-weight:750;font-size:16px;
  padding:30px 0 25px;
}
.main-nav a:hover,.main-nav a.active{color:var(--green)}
.main-nav a.active:after{
  content:"";position:absolute;left:0;right:0;bottom:17px;height:3px;
  border-radius:99px;background:var(--green)
}
.btn{
  min-height:46px;padding:0 21px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-weight:800;font-size:16px;border:1px solid transparent;
  transition:.2s ease;
}
.btn:hover{transform:translateY(-1px)}
.btn-primary{
  background:linear-gradient(135deg,#11b48a,#078d6e);
  color:#fff;
  box-shadow:0 12px 28px rgba(11,155,120,.20)
}
.btn-ghost{background:#fff;border-color:#a8ded2;color:#087b61}
.btn-lg{min-height:52px;padding:0 25px;font-size:17px}
.menu-toggle{display:none;border:0;background:none;width:44px;height:44px}
.menu-toggle span{display:block;width:25px;height:2px;background:var(--dark);margin:5px auto}
.nav-cta{white-space:nowrap}

/* Hero */
.hero{
  position:relative;overflow:hidden;
  padding:92px 0 82px;
  background:
    radial-gradient(circle at 90% 18%,rgba(45,210,163,.17),transparent 23%),
    linear-gradient(180deg,#f7fffc 0,#fff 100%);
}
.hero-glow{position:absolute;border-radius:50%;pointer-events:none}
.glow-a{width:300px;height:300px;right:4%;top:60px;background:rgba(103,231,193,.09)}
.glow-b{width:220px;height:220px;left:-80px;bottom:-60px;background:rgba(11,155,120,.07)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(430px,.92fr);gap:70px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  padding:8px 14px;border-radius:999px;
  background:#eaf9f4;border:1px solid #caeae0;
  color:#087a61;font-weight:800;font-size:15px
}
.eyebrow span{width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 0 6px rgba(11,155,120,.10)}
.hero h1{
  margin:22px 0 18px;color:var(--dark);
  font-size:62px;line-height:1.12;letter-spacing:-2px
}
.hero h1 em{font-style:normal;color:var(--green)}
.hero-subtitle{font-size:20px;color:#607687;max-width:760px;margin:0 0 30px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.trust-row{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:34px;max-width:700px}
.trust-row>div{
  display:grid;grid-template-columns:auto 1fr;column-gap:10px;
  padding:14px 15px;border:1px solid #d9ebe5;border-radius:15px;background:rgba(255,255,255,.84)
}
.trust-icon{
  width:32px;height:32px;border-radius:10px;background:#e5f8f1;color:var(--green);
  display:grid;place-items:center;grid-row:1/3;font-weight:900
}
.trust-row strong{color:var(--dark);font-size:15px;line-height:1.3}
.trust-row small{color:var(--muted);font-size:12px;line-height:1.4;margin-top:3px}

/* Hero Visual */
.hero-visual{position:relative;min-height:470px}
.visual-card{
  position:absolute;background:rgba(255,255,255,.94);border:1px solid #dcebe7;
  box-shadow:0 22px 50px rgba(10,74,60,.10);border-radius:22px
}
.main-card{width:365px;left:28px;top:40px;padding:22px}
.window-top{display:flex;gap:6px;margin-bottom:24px}
.window-top span{width:9px;height:9px;border-radius:50%;background:#d9e7e3}
.tool-preview{display:flex;gap:15px;align-items:center}
.preview-icon{width:62px;height:62px;border-radius:18px;display:grid;place-items:center;background:#e8f8f3;color:var(--green)}
.preview-icon svg{width:32px;height:32px}
.tool-preview strong{display:block;color:var(--dark);font-size:20px}
.tool-preview p{margin:3px 0 0;color:var(--muted);font-size:14px}
.preview-progress{height:8px;border-radius:999px;background:#e9f1ef;margin:24px 0 18px;overflow:hidden}
.preview-progress span{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,#11b48a,#25c79d)}
.preview-mini-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.preview-mini-grid span{padding:8px 0;text-align:center;background:#f2f7f5;border-radius:9px;color:#617685;font-size:13px}
.pdf-card{right:5px;top:12px;width:190px;padding:22px}
.pdf-badge{display:inline-flex;padding:5px 9px;border-radius:8px;background:#fff0f0;color:#d94f56;font-weight:900;font-size:12px}
.pdf-card strong,.free-card strong{display:block;margin-top:14px;color:var(--dark);font-size:18px}
.pdf-card small,.free-card small{color:var(--muted)}
.free-card{right:25px;bottom:42px;width:176px;padding:20px}
.free-card>span{display:inline-flex;color:var(--green);font-size:25px;font-weight:900;letter-spacing:1px}
.leaf{position:absolute;border-radius:100% 0 100% 0;background:rgba(36,188,144,.13);transform:rotate(35deg)}
.leaf-1{width:110px;height:52px;right:70px;top:185px}
.leaf-2{width:90px;height:44px;left:0;bottom:50px;transform:rotate(-38deg)}
.leaf-3{width:70px;height:34px;right:170px;bottom:10px;transform:rotate(65deg)}

/* Search */
.search-section{padding:24px 0;background:#fff;border-top:1px solid #edf3f1;border-bottom:1px solid #edf3f1}
.tool-search-wrap{
  display:flex;align-items:center;gap:13px;
  max-width:920px;margin:auto;padding:10px 14px 10px 16px;
  border:1px solid #d8e8e3;border-radius:16px;background:#fbfefd;
  box-shadow:0 8px 25px rgba(10,67,55,.04)
}
.search-icon{width:38px;height:38px;border-radius:11px;background:#eaf8f4;color:var(--green);display:grid;place-items:center;flex:none}
.search-icon svg{width:21px;height:21px}
.tool-search-wrap input{flex:1;border:0;outline:0;background:transparent;color:var(--dark);font-size:16px;min-width:0}
.search-tip{color:#91a2ae;font-size:12px;white-space:nowrap}

/* Tool center */
.tools-section{padding:80px 0 92px;background:linear-gradient(180deg,#fff,#fbfdfc)}
.section-heading{text-align:left;max-width:780px;margin-bottom:44px}
.section-heading.center{text-align:center;margin-left:auto;margin-right:auto}
.section-heading>span,.section-label{color:var(--green);font-weight:850;font-size:14px;letter-spacing:.4px}
.section-heading h2{font-size:40px;line-height:1.25;color:var(--dark);margin:7px 0 10px;letter-spacing:-.8px}
.section-heading p{margin:0;color:#6b8090;font-size:16px}
.category-block{scroll-margin-top:110px;margin-top:54px}
.category-block:first-of-type{margin-top:0}
.category-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:20px}
.category-kicker{font-size:12px;font-weight:900;color:#8ba096;letter-spacing:1.5px}
.category-head h3{font-size:30px;color:var(--dark);margin:2px 0 4px}
.category-head p{margin:0;color:#758999}
.category-count{
  background:#e8f8f3;color:#087b61;border:1px solid #ccebe1;
  border-radius:999px;padding:8px 13px;font-size:13px;font-weight:800
}
.category-count.pdf{background:#fff3f3;color:#c84e55;border-color:#f2d3d5}
.tool-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.tool-card{
  position:relative;min-height:286px;padding:25px;
  border:1px solid #dce9e5;border-radius:20px;background:#fff;
  box-shadow:0 11px 30px rgba(9,72,58,.035);
  transition:.22s ease;
}
a.tool-card:hover{transform:translateY(-4px);box-shadow:0 20px 42px rgba(9,72,58,.09);border-color:#bee3d8}
.tool-card.featured{background:linear-gradient(160deg,#fff,#f4fcf9);border-color:#bee5da}
.tool-status{
  position:absolute;right:18px;top:18px;border-radius:999px;
  padding:5px 9px;font-size:11px;font-weight:850
}
.tool-status.live{background:#e5f8f1;color:#087b61}
.tool-status.soon{background:#f2f5f4;color:#75858d}
.tool-icon{
  width:56px;height:56px;border-radius:17px;background:#eaf8f4;color:var(--green);
  display:grid;place-items:center;margin-bottom:18px
}
.tool-icon.pdf{background:#fff1f2;color:#d8555c}
.tool-icon svg{width:29px;height:29px}
.tool-card h4{font-size:21px;color:var(--dark);margin:0 0 9px}
.tool-card p{margin:0;color:#6c8191;font-size:14px;min-height:68px}
.tool-tags{display:flex;gap:7px;flex-wrap:wrap;margin-top:16px}
.tool-tags span{padding:5px 9px;border-radius:999px;background:#f0f5f3;color:#668078;font-size:11px}
.tool-link{position:absolute;left:25px;bottom:22px;color:var(--green);font-weight:800;font-size:14px}
.tool-link b{font-size:17px;margin-left:3px}
.tool-link.muted{color:#96a5ad}
.search-empty{margin-top:30px;padding:30px;border:1px dashed #cbded8;border-radius:18px;text-align:center;background:#fbfefd}
.search-empty strong{display:block;color:var(--dark);font-size:18px}
.search-empty p{margin:5px 0 0;color:var(--muted)}

/* Advantages */
.advantages-section{padding:84px 0;background:#f2fbf8;border-top:1px solid #e1f0eb;border-bottom:1px solid #e1f0eb}
.adv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.adv-grid article{background:#fff;border:1px solid #dbe9e5;border-radius:20px;padding:26px;box-shadow:0 12px 28px rgba(10,67,55,.04)}
.adv-icon{width:52px;height:52px;border-radius:16px;background:#e8f8f3;color:var(--green);display:grid;place-items:center}
.adv-icon svg{width:27px;height:27px}
.adv-grid h3{font-size:19px;color:var(--dark);margin:16px 0 8px}
.adv-grid p{margin:0;color:#6d8291;font-size:14px}

/* About */
.about-section{padding:78px 0;background:#fff}
.about-card{
  display:grid;grid-template-columns:1.35fr .65fr;gap:50px;align-items:center;
  padding:42px;border:1px solid #dce9e5;border-radius:24px;
  background:linear-gradient(135deg,#fff,#f7fcfa);box-shadow:var(--shadow)
}
.about-card h2{font-size:34px;line-height:1.25;color:var(--dark);margin:7px 0 13px}
.about-card p{color:#667c8c;margin:8px 0}
.about-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.about-stats div{padding:20px 10px;border:1px solid #dbeae5;border-radius:16px;background:#fff;text-align:center}
.about-stats strong{display:block;color:var(--green);font-size:24px}
.about-stats span{font-size:12px;color:#778a97}

/* FAQ */
.faq-section{padding:80px 0 88px;background:#fbfdfc}
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.faq-grid details{border:1px solid #dce9e5;border-radius:16px;background:#fff;padding:0 20px}
.faq-grid summary{
  list-style:none;cursor:pointer;padding:19px 0;font-weight:800;color:var(--dark);
  display:flex;align-items:center;justify-content:space-between;gap:20px
}
.faq-grid summary::-webkit-details-marker{display:none}
.faq-grid summary span{color:var(--green);font-size:21px;transition:.2s}
.faq-grid details[open] summary span{transform:rotate(45deg)}
.faq-grid details p{margin:0 0 18px;color:#6c8290;font-size:14px}

/* CTA */
.cta-section{padding:0 0 82px;background:#fbfdfc}
.cta-card{
  padding:34px 38px;border-radius:24px;
  background:
    radial-gradient(circle at 93% 15%,rgba(255,255,255,.65),transparent 22%),
    linear-gradient(135deg,#dff6ee,#f8fffc);
  border:1px solid #cbe9df;
  display:flex;align-items:center;justify-content:space-between;gap:30px
}
.cta-card>div>span{color:var(--green);font-size:13px;font-weight:850}
.cta-card h2{font-size:30px;color:var(--dark);margin:4px 0 6px}
.cta-card p{margin:0;color:#657b8b}

/* Footer */
.site-footer{
  background:linear-gradient(135deg,#063f41,#07584f);color:#d7efeb;
  padding:58px 0 28px
}
.footer-grid{display:grid;grid-template-columns:1.55fr repeat(3,1fr);gap:50px}
.brand-light .brand-copy strong{color:#fff}
.brand-light .brand-copy small{color:#b7d8d2}
.footer-brand p{max-width:390px;color:#bad5d0;font-size:15px}
.footer-pills{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
.footer-pills span{border:1px solid rgba(255,255,255,.15);border-radius:999px;padding:5px 10px;font-size:12px}
.footer-grid h3{font-size:17px;color:#fff;margin:0 0 14px}
.footer-grid>div:not(.footer-brand)>a{display:block;color:#c2ddd8;font-size:15px;padding:5px 0}
.footer-grid a:hover{color:#fff}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);margin-top:36px;padding-top:22px;
  text-align:center;color:#b3d0cb;font-size:14px
}
.footer-bottom p{margin:4px 0}
.back-top{
  position:fixed;right:24px;bottom:24px;width:48px;height:48px;border:0;border-radius:50%;
  background:var(--green);color:#fff;box-shadow:0 12px 28px rgba(11,155,120,.28);
  display:none;place-items:center;cursor:pointer
}
.back-top.show{display:grid}
.back-top svg{width:23px;height:23px}

/* Responsive */
@media(max-width:1080px){
  .nav-cta{display:none}
  .main-nav{gap:20px}
  .hero-grid{grid-template-columns:1fr}
  .hero-copy{max-width:820px}
  .hero-visual{max-width:650px;width:100%;margin:auto}
  .tool-grid{grid-template-columns:repeat(2,1fr)}
  .adv-grid{grid-template-columns:repeat(2,1fr)}
  .about-card{grid-template-columns:1fr}
}
@media(max-width:900px){
  .menu-toggle{display:block;margin-left:auto}
  .main-nav{
    display:none;position:absolute;left:20px;right:20px;top:74px;
    background:#fff;border:1px solid #dbe9e5;border-radius:16px;
    padding:12px;box-shadow:var(--shadow);flex-direction:column;gap:2px
  }
  .main-nav.open{display:flex}
  .main-nav a{padding:12px 14px}
  .main-nav a.active:after{display:none}
  .faq-grid,.footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:680px){
  .container{width:min(100% - 28px,var(--container))}
  .nav-shell{height:72px}
  .brand{min-width:0}
  .brand-mark{width:43px;height:43px}
  .brand-copy strong{font-size:18px}
  .brand-copy small{font-size:11px}
  .hero{padding:60px 0 55px}
  .hero h1{font-size:40px;letter-spacing:-1px}
  .hero-subtitle{font-size:17px}
  .trust-row{grid-template-columns:1fr}
  .hero-visual{min-height:390px}
  .main-card{width:300px;left:0}
  .pdf-card{right:0;width:150px}
  .free-card{right:10px;width:150px}
  .search-tip{display:none}
  .section-heading h2{font-size:31px}
  .category-head{align-items:flex-start}
  .category-head h3{font-size:25px}
  .tool-grid,.adv-grid,.faq-grid{grid-template-columns:1fr}
  .tool-card{min-height:270px}
  .about-card{padding:28px 22px}
  .about-stats{grid-template-columns:1fr}
  .cta-card{display:block;padding:28px 22px}
  .cta-card .btn{margin-top:18px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{text-align:left}
}