:root{--green:#00C853;--green2:#00A844;--deep:#087F38;--mint:#E8F8EE;--soft:#F4FBF6;--white:#FFFFFF;--title:#14331F;--text:#222222;--muted:#5B6B62;--footer:#1B1F1C;--footerText:#D7E6DB;--line:rgba(0,200,83,.16);--shadow:0 12px 28px rgba(8,127,56,.08)}
*{box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:hidden}
body{margin:0;background:var(--mint);color:var(--text);font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.82;overflow-x:hidden}
a{color:var(--deep);text-underline-offset:3px}img{max-width:100%}button,input,textarea{font:inherit}
.site-header{position:sticky;top:0;z-index:9999;width:100%;background:#00C853;box-shadow:0 8px 20px rgba(0,160,70,.18)}
.header-inner{max-width:1180px;min-height:70px;margin:0 auto;padding:0 18px;display:flex;align-items:center;justify-content:space-between;gap:14px}
.site-logo{flex:0 0 auto;display:flex;align-items:center;text-decoration:none}.site-logo img{display:block;height:40px;width:auto;max-width:160px;object-fit:contain}.logo-fallback{display:inline-flex;align-items:center;justify-content:center;min-width:118px;height:40px;padding:0 14px;background:#fff;color:#087F38;border-radius:12px;font-size:22px;font-weight:800;letter-spacing:1px}
.nav-core{display:flex;align-items:center;justify-content:center;gap:2px;min-width:0;white-space:nowrap}.nav-core a{color:#FFFFFF;padding:8px 10px;font-weight:700;text-decoration:none;white-space:nowrap;font-size:15px}.nav-core a.is-current,.nav-core a:hover{background:rgba(255,255,255,.18);border-radius:999px}
.header-actions{display:flex;gap:8px;flex:0 0 auto}.login-btn,.register-btn,.header-reg-btn{height:40px;min-width:88px;padding:0 16px;display:inline-flex;align-items:center;justify-content:center;border-radius:999px;text-decoration:none;font-weight:700;white-space:nowrap}.login-btn,.header-reg-btn{background:#FFFFFF;color:#087F38}.register-btn{background:transparent;color:#FFFFFF;border:1px solid rgba(255,255,255,.7)}
.menu-toggle,.mobile-account{display:none}.channel-strip{display:block;background:#E8F8EE;border-bottom:1px solid var(--line)}.channel-strip-inner{max-width:1180px;margin:0 auto;padding:8px 18px;display:flex;gap:6px;overflow-x:auto;overscroll-behavior-x:contain;scrollbar-width:thin}.channel-strip a{flex:0 0 auto;color:#2E5B3C;text-decoration:none;padding:5px 9px;border-radius:999px;font-size:14px;font-weight:700;white-space:nowrap}.channel-strip a:hover,.channel-strip a.is-current{color:#00A844;background:#fff}
.site-main{min-height:60vh}.wrap{width:min(1180px,calc(100% - 36px));margin:0 auto}.reading{width:min(820px,calc(100% - 36px));margin:0 auto}.section{padding:64px 0}.section-sm{padding:42px 0}.section-head{max-width:760px;margin-bottom:26px}.eyebrow{margin:0 0 8px;color:var(--deep);font-size:14px;font-weight:800;letter-spacing:.08em}.section h1,.section h2,.section h3,.reading h1,.reading h2,.reading h3{color:var(--title);line-height:1.25}.hero h1,.page-hero h1{margin:0 0 18px;font-size:clamp(30px,4.3vw,48px)}h2{font-size:clamp(24px,3vw,32px)}h3{font-size:20px}.lead{font-size:18px;color:#33463a;max-width:760px}.muted{color:var(--muted)}
.hero{padding:72px 0 58px}.hero-grid,.split{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(340px,.92fr);align-items:center;gap:44px}.hero-copy p{margin:0 0 20px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}.main-btn{display:inline-flex;align-items:center;justify-content:center;height:42px;min-width:96px;padding:0 20px;background:#00C853;color:#FFFFFF;border-radius:999px;text-decoration:none;font-weight:700;box-shadow:0 8px 18px rgba(0,200,83,.28)}.text-link{font-weight:700;text-decoration:none}.text-link:hover{text-decoration:underline}
.media{position:relative;width:100%;max-width:100%;overflow:hidden;border-radius:16px;background:#E8F8EE;aspect-ratio:16/9;border:1px solid var(--line)}.media>img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;object-position:center center;display:block}.media-placeholder{position:absolute;inset:0;background:linear-gradient(135deg,#f7fff9,#e8f8ee 60%,#dff4e6)}.media-placeholder:after{content:"49图库";position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:#087F38;font-size:clamp(28px,5vw,56px);font-weight:800;opacity:.14;letter-spacing:.15em}.media.card-media{height:170px;aspect-ratio:auto}.media.feature-media{height:236px;aspect-ratio:auto}
.quick-scroll{display:flex;gap:10px;overflow-x:auto;padding:4px 0 10px}.quick-scroll a{flex:0 0 auto;background:#fff;border:1px solid var(--line);border-radius:999px;padding:9px 15px;text-decoration:none;font-weight:700;box-shadow:var(--shadow)}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}.card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;box-shadow:var(--shadow);min-width:0}.card h2,.card h3{margin:0 0 10px}.card p{margin:0 0 13px}.card .text-link{display:inline-block;margin-top:auto}.channel-card{display:flex;flex-direction:column;min-height:190px}.channel-card p{font-size:15px;color:var(--muted)}
.feature-list{display:grid;gap:12px}.feature-row{background:#fff;border-left:4px solid var(--green);border-radius:12px;padding:16px 18px;box-shadow:var(--shadow)}.feature-row strong{color:var(--title)}
.notice{background:#F4FBF6;border:1px solid var(--line);border-radius:16px;padding:20px 22px}.notice strong{color:var(--title)}.notice p:last-child{margin-bottom:0}.info-pairs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.info-pairs>div{background:#fff;border-radius:16px;padding:20px;border:1px solid var(--line)}
.page-hero{padding:56px 0 32px}.page-hero .meta-line{color:var(--muted);font-size:15px}.prose{background:#fff;border-radius:18px;padding:clamp(24px,4vw,42px);border:1px solid var(--line);box-shadow:var(--shadow)}.prose p{margin:0 0 1.15em}.prose ul,.prose ol{padding-left:1.35em}.prose li{margin:.55em 0}.prose blockquote{margin:24px 0;padding:16px 20px;background:var(--soft);border-left:4px solid var(--green);border-radius:10px;color:#33463a}.prose .inline-nav{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0}.prose .inline-nav a{background:var(--soft);border:1px solid var(--line);padding:7px 11px;border-radius:999px;text-decoration:none;font-weight:700}.steps{counter-reset:step;display:grid;gap:14px}.step{counter-increment:step;background:var(--soft);border-radius:14px;padding:16px 18px}.step:before{content:counter(step);display:inline-flex;width:28px;height:28px;align-items:center;justify-content:center;border-radius:50%;background:var(--green);color:#fff;font-weight:800;margin-right:9px}.compare{display:grid;grid-template-columns:1fr 1fr;gap:18px}.compare .card{height:100%}.mini-links{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.mini-links a{display:block;background:#fff;border:1px solid var(--line);border-radius:14px;padding:15px;text-decoration:none;font-weight:700}.faq-list{display:grid;gap:14px}.faq-item{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px}.faq-item h2,.faq-item h3{margin:0 0 8px}.faq-item p:last-child{margin-bottom:0}
.side-float{position:fixed;right:14px;top:38%;z-index:9000;display:flex;flex-direction:column;gap:8px;width:92px}.side-float a{display:flex;align-items:center;justify-content:center;min-height:38px;padding:6px 8px;background:#fff;color:var(--deep);border:1px solid var(--line);border-radius:10px;text-align:center;text-decoration:none;font-size:13px;font-weight:700;box-shadow:var(--shadow)}.side-float .side-primary{background:var(--green);color:#fff}
.site-footer{background:#1B1F1C;color:#D7E6DB;margin-top:48px}.footer-grid{max-width:1180px;margin:0 auto;padding:52px 18px 36px;display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}.site-footer h2{font-size:17px;color:#fff;margin:0 0 14px}.site-footer a{display:block;color:#D7E6DB;text-decoration:none;margin:7px 0}.site-footer a:hover{color:#fff}.footer-logo{display:inline-flex!important;margin:0 0 14px!important}.footer-logo img{display:block;height:40px;width:auto;max-width:160px;object-fit:contain}.footer-brand p{max-width:340px}.footer-bottom{max-width:1180px;margin:0 auto;border-top:1px solid rgba(255,255,255,.08);padding:20px 18px 28px;display:flex;gap:20px;justify-content:space-between;align-items:flex-start;font-size:13px}.footer-bottom p{margin:0}.mobile-bottom{display:none}
@media(min-width:1081px){.site-main{padding-right:64px}}
.mobile-drawer,
.drawer-mask{display:none}
@media(max-width:1080px){.nav-core a{padding:8px 7px;font-size:14px}.header-actions .register-btn{display:none}.grid-4{grid-template-columns:repeat(3,minmax(0,1fr))}.side-float{display:none}}
@media(max-width:980px){
.mobile-drawer{
  display:block;
  position:fixed;
  inset:0 auto 0 0;
  width:min(84vw,320px);
  background:#fff;
  z-index:12000;
  transform:translateX(-105%);
  transition:transform .2s ease;
  box-shadow:18px 0 40px rgba(20,51,31,.18);
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-mask{
  display:none;
  position:fixed;
  inset:0;
  background:rgba(20,51,31,.42);
  z-index:11000;
  opacity:0;
  pointer-events:none;
  transition:opacity .18s ease;
}
.drawer-mask.is-visible{
  display:block;
  opacity:1;
  pointer-events:auto;
}
.header-inner{min-height:64px;padding:0 12px;display:grid;grid-template-columns:44px 1fr auto;gap:8px}.menu-toggle{display:inline-flex;width:42px;height:42px;align-items:center;justify-content:center;border:0;border-radius:10px;background:#fff;color:var(--deep);font-size:24px;font-weight:800;cursor:pointer}.site-logo{justify-self:center}.site-logo img{height:36px;max-width:142px}.site-logo .logo-fallback{height:36px;min-width:106px;font-size:19px}.nav-core,.header-actions{display:none}.mobile-account{display:inline-flex;align-items:center;justify-content:center;min-width:76px;height:40px;padding:0 12px;border-radius:999px;background:#fff;color:var(--deep);font-size:14px;font-weight:800;text-decoration:none;white-space:nowrap}.channel-strip{display:none}.drawer-head{height:68px;padding:0 14px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between}.drawer-logo{display:flex;align-items:center;text-decoration:none}.drawer-logo img{height:36px;width:auto;max-width:145px;object-fit:contain}.drawer-close{width:40px;height:40px;border:0;border-radius:10px;background:var(--soft);color:var(--title);font-size:28px;line-height:1;cursor:pointer}.drawer-scroll{height:calc(100vh - 68px);overflow-y:auto;padding:14px 14px 34px}.drawer-group{padding:10px 0 14px;border-bottom:1px solid #edf5ef}.drawer-group h2{margin:0 0 8px;font-size:14px;color:var(--muted)}.drawer-links{display:grid;grid-template-columns:1fr 1fr;gap:6px}.drawer-links a{padding:9px 10px;border-radius:10px;color:var(--title);text-decoration:none;background:var(--soft);font-size:14px;font-weight:700}.drawer-open{overflow:hidden}.hero,.section{padding:48px 0}.hero-grid,.split{grid-template-columns:1fr;gap:26px}.hero-copy{order:1}.hero-visual{order:2}.reverse-mobile .copy{order:2}.reverse-mobile .visual{order:1}.grid-4{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}.footer-grid{grid-template-columns:repeat(2,1fr)}.mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:9500;height:58px;display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;color:var(--title);font-size:14px;font-weight:800;text-decoration:none}.site-footer{padding-bottom:64px}.side-float{display:none}.compare{grid-template-columns:1fr}.mini-links{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:700px){body{font-size:16px}.wrap,.reading{width:min(100% - 28px,1180px)}.hero{padding:40px 0 34px}.section{padding:42px 0}.section-sm{padding:32px 0}.hero h1,.page-hero h1{font-size:clamp(28px,8.3vw,34px)}.lead{font-size:17px}.grid-4,.grid-3{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.grid-2{grid-template-columns:1fr}.channel-card{min-height:178px;padding:17px}.card{padding:18px}.footer-grid{grid-template-columns:1fr;gap:20px;padding-top:38px}.footer-bottom{flex-direction:column}.prose{padding:22px 18px}.media.feature-media{height:220px}.mini-links{grid-template-columns:1fr 1fr}}
@media(max-width:430px){.header-inner{grid-template-columns:42px 1fr 78px}.mobile-account{min-width:72px;padding:0 8px;font-size:13px}.site-logo img{max-width:130px}.site-logo .logo-fallback{min-width:96px;font-size:18px}.grid-4,.grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}.channel-card{min-height:188px}.drawer-links{grid-template-columns:1fr 1fr}}
@media(max-width:375px){.header-inner{padding:0 9px;grid-template-columns:40px 1fr 70px;gap:6px}.menu-toggle{width:40px;height:40px}.mobile-account{min-width:68px;font-size:12px}.site-logo img{max-width:118px}.site-logo .logo-fallback{min-width:90px;padding:0 8px;font-size:17px}}