:root{--green:#00C853;--green-hover:#00A844;--deep:#087F38;--mint:#E8F8EE;--pale:#F4FBF6;--white:#FFFFFF;--title:#14331F;--text:#222222;--muted:#5B6B62;--footer:#1B1F1C;--footer-text:#D7E6DB;--line:rgba(0,200,83,.16);--shadow:0 12px 28px rgba(8,127,56,.08)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--mint);color:var(--text);font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;overflow-x:hidden}img,svg,video,canvas{max-width:100%}a{color:var(--deep);text-underline-offset:3px}button,input,select,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{display:flex;align-items:center;min-width:138px;text-decoration:none}.site-logo img{display:block;height:40px;width:auto;max-width:160px;object-fit:contain}.logo-placeholder,.footer-logo-text{font-weight:900;letter-spacing:.04em}.logo-placeholder{color:#fff;font-size:24px}.nav-core{display:flex;align-items:center;justify-content:center;gap:2px;white-space:nowrap}.nav-core a{color:#FFFFFF;padding:8px 10px;font-weight:700;text-decoration:none;white-space:nowrap}.nav-core a.is-current,.nav-core a:hover{background:rgba(255,255,255,.18);border-radius:999px}.header-actions{display:flex;gap:8px;align-items:center}.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)}.mobile-reg,.menu-toggle{display:none}.channel-strip{background:#E8F8EE;border-bottom:1px solid var(--line)}.channel-strip-inner{max-width:1180px;margin:0 auto;padding:10px 18px;display:flex;gap:16px;overflow-x:auto;scrollbar-width:thin;white-space:nowrap}.channel-strip a{color:#2E5B3C;text-decoration:none;font-weight:700;font-size:14px}.channel-strip a.is-current,.channel-strip a:hover{color:#00A844}.site-main{max-width:1180px;margin:0 auto;padding:0 84px 72px 18px}.section{padding:64px 0}.section-tight{padding:42px 0}.hero{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(320px,.92fr);gap:36px;align-items:center}.hero.reverse{grid-template-columns:minmax(320px,.92fr) minmax(0,1.08fr)}.hero-copy{max-width:720px}.eyebrow{margin:0 0 12px;color:var(--deep);font-weight:800;letter-spacing:.08em}.hero h1,.page-hero h1{margin:0 0 20px;color:var(--title);font-size:clamp(36px,5vw,48px);line-height:1.16}.hero p,.page-hero p,.article p{font-size:17px;line-height:1.85}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}.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{display:inline-flex;align-items:center;gap:6px;font-weight:700;text-decoration:none}.text-link::after{content:'→'}.media{position:relative;width:100%;max-width:100%;overflow:hidden;border-radius:16px;background:#E8F8EE;aspect-ratio:16/9}.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,#E8F8EE,#F4FBF6)}.hero .media,.feature-split .media{min-height:220px;max-height:252px}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:24px}.section-heading h2{margin:0;color:var(--title);font-size:clamp(26px,3vw,34px)}.section-heading p{max-width:660px;margin:0;color:var(--muted);line-height:1.75}.pill-row{display:flex;gap:10px;overflow-x:auto;padding:4px 0 8px}.pill-row a{flex:0 0 auto;background:#fff;border:1px solid var(--line);border-radius:999px;padding:10px 16px;text-decoration:none;font-weight:700;box-shadow:var(--shadow)}.channel-grid,.card-grid,.feature-wall,.help-grid{display:grid;gap:16px}.channel-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.card-grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.card-grid.two,.feature-split{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}.feature-wall{grid-template-columns:repeat(3,minmax(0,1fr))}.card,.channel-card,.note-box,.article-panel,.qa-item,.index-panel{background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow)}.channel-card,.card,.index-panel{padding:20px}.channel-card h3,.card h3,.index-panel h3{margin:0 0 10px;color:var(--title)}.channel-card p,.card p,.index-panel p{margin:0 0 14px;color:var(--muted);line-height:1.7}.card .media{height:168px;aspect-ratio:auto;margin-bottom:16px}.feature-split{align-items:center}.feature-split .copy{padding:8px 0}.feature-split h2{font-size:32px;color:var(--title);margin:0 0 14px}.feature-split p{line-height:1.85}.note-box{padding:24px;background:#F4FBF6}.note-box h2,.note-box h3{margin-top:0;color:var(--title)}.note-box ul,.article ul,.article ol{padding-left:1.25em;line-height:1.85}.qa-list{display:grid;gap:14px}.qa-item{padding:20px}.qa-item h3{margin:0 0 8px;color:var(--title)}.qa-item p{margin:0;color:var(--muted);line-height:1.75}.page-hero{padding:56px 0 30px;max-width:860px}.page-hero .meta{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:12px}.tag{display:inline-flex;border-radius:999px;background:#fff;border:1px solid var(--line);padding:6px 10px;color:var(--deep);font-weight:700;font-size:14px}.content-shell{display:grid;grid-template-columns:minmax(0,820px) minmax(240px,1fr);gap:24px;align-items:start}.article-panel{padding:30px}.article h2{margin:30px 0 10px;color:var(--title);font-size:28px}.article h3{margin:24px 0 8px;color:var(--title);font-size:21px}.article p{margin:0 0 16px}.article .media{margin:20px 0;min-height:220px;max-height:252px}.side-index{position:sticky;top:96px;display:grid;gap:14px}.side-index a{display:block;text-decoration:none;padding:10px 0;border-bottom:1px solid var(--line);font-weight:700}.number-list{counter-reset:item;display:grid;gap:14px;padding:0;list-style:none}.number-list li{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px 18px 18px 58px;position:relative;line-height:1.75}.number-list li::before{counter-increment:item;content:counter(item);position:absolute;left:18px;top:18px;width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:var(--green);color:#fff;font-weight:900}.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.compare-grid>div{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px}.mini-review{background:#fff;border-left:4px solid var(--green);padding:18px 20px;border-radius:0 16px 16px 0;box-shadow:var(--shadow);line-height:1.8}.mobile-drawer,.drawer-mask{display:none}.floating-tools{position:fixed;right:18px;top:42%;z-index:3000;width:96px;display:grid;gap:8px}.floating-tools a,.floating-tools button{border:1px solid var(--line);background:#fff;color:var(--deep);border-radius:12px;padding:10px 8px;text-align:center;text-decoration:none;font-weight:700;box-shadow:var(--shadow);cursor:pointer}.floating-tools .float-reg{background:var(--green);color:#fff}.mobile-bottom{display:none}.site-footer{background:var(--footer);color:var(--footer-text)}.footer-inner{max-width:1180px;margin:0 auto;padding:48px 18px;display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:28px}.footer-inner h2{font-size:16px;color:#fff;margin:0 0 14px}.footer-inner a{display:block;color:var(--footer-text);text-decoration:none;margin:9px 0}.footer-brand img{height:40px;width:auto;max-width:160px;object-fit:contain}.footer-brand p{line-height:1.75}.footer-logo-text{color:#fff;font-size:24px}.footer-bottom{border-top:1px solid rgba(255,255,255,.12);max-width:1180px;margin:0 auto;padding:18px;display:flex;justify-content:space-between;gap:20px;font-size:14px;line-height:1.7}.footer-bottom p{margin:0}.drawer-open{overflow:hidden}
@media(max-width:1100px){.nav-core a{padding:8px 7px;font-size:14px}.header-actions .register-btn{display:none}.site-main{padding-right:24px}.floating-tools{display:none}.channel-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:980px){.nav-core,.header-actions,.channel-strip{display:none}.header-inner{min-height:64px;display:grid;grid-template-columns:46px minmax(0,1fr) auto;padding:0 14px}.menu-toggle{display:flex;width:42px;height:42px;border:0;background:transparent;flex-direction:column;justify-content:center;gap:5px;padding:8px;cursor:pointer}.menu-toggle span{display:block;height:2px;background:#fff;border-radius:2px}.site-logo{justify-content:center;min-width:0}.site-logo img{max-width:150px;height:36px}.mobile-reg{display:inline-flex;min-width:86px;padding:0 12px}.site-main{padding:0 16px 88px}.hero,.hero.reverse,.feature-split,.content-shell{grid-template-columns:1fr}.hero.reverse .media{order:2}.hero.reverse .hero-copy{order:1}.side-index{position:static}.card-grid.three,.feature-wall{grid-template-columns:repeat(2,minmax(0,1fr))}.channel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:7000;display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border-top:1px solid var(--line);box-shadow:0 -8px 24px rgba(8,127,56,.08)}.mobile-bottom a{text-align:center;padding:12px 6px 10px;text-decoration:none;color:var(--deep);font-weight:800}.footer-inner{grid-template-columns:repeat(2,1fr)}.footer-bottom{padding-bottom:84px;flex-direction:column}.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}.drawer-head{height:68px;display:flex;align-items:center;justify-content:space-between;padding:0 14px;border-bottom:1px solid var(--line)}.drawer-logo img{display:block;height:36px;width:auto;max-width:150px;object-fit:contain}.drawer-close{width:40px;height:40px;border:0;background:var(--pale);border-radius:50%;color:var(--title);font-size:28px;cursor:pointer}.drawer-scroll{height:calc(100vh - 68px);overflow-y:auto;padding:12px 16px 30px}.drawer-group{padding:12px 0;border-bottom:1px solid var(--line)}.drawer-group h2{font-size:14px;color:var(--muted);margin:0 0 8px}.drawer-links{display:grid;grid-template-columns:1fr 1fr;gap:4px 10px}.drawer-links a{text-decoration:none;padding:8px 0;font-weight:700;color:var(--title)}}
@media(max-width:640px){.section{padding:44px 0}.section-tight{padding:32px 0}.hero{gap:22px}.hero h1,.page-hero h1{font-size:clamp(26px,9vw,34px)}.hero p,.page-hero p,.article p{font-size:16px;line-height:1.82}.hero .media,.feature-split .media,.article .media{min-height:0;max-height:none}.section-heading{align-items:flex-start;flex-direction:column}.section-heading h2{font-size:26px}.card-grid.three,.card-grid.two,.feature-wall,.compare-grid{grid-template-columns:1fr}.channel-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.channel-card{padding:15px}.channel-card p{font-size:14px}.article-panel{padding:22px}.article h2{font-size:25px}.footer-inner{grid-template-columns:1fr}.mobile-reg{font-size:14px;min-width:82px}.site-logo img{max-width:128px}.logo-placeholder{font-size:20px}}

.mobile-drawer,
.drawer-mask{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;
}
}