*{box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:hidden}
body{margin:0;overflow-x:hidden;background:#E7F6F3;color:#222;font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.8}
a{color:#08756A;text-underline-offset:3px}
a:hover{color:#0A7A6E}
img{max-width:100%;height:auto}
button,input,select,textarea{font:inherit}
.site-header{
  position:sticky;
  top:0;
  z-index:9999;
  width:100%;
  background:linear-gradient(180deg,#0C8F82 0%,#0A7A6E 100%);
  box-shadow:0 8px 22px rgba(10,122,110,.22);
}
.header-inner{
  max-width:1200px;
  min-height:72px;
  margin:0 auto;
  padding:0 20px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.site-logo{display:flex;align-items:center;flex:0 0 auto;text-decoration:none;color:#F7F3E4;font-weight:800}
.site-logo img{
  display:block;
  height:42px;
  width:auto;
  max-width:168px;
  object-fit:contain;
}
.brand-fallback{display:inline-flex;align-items:center;min-height:42px;color:#F7F3E4;font-size:22px;font-weight:800}
.nav-core{display:flex;align-items:center;justify-content:center;gap:2px;min-width:0;flex:1}
.nav-core a{
  color:#F7F3E4;
  padding:8px 12px;
  font-weight:700;
  text-decoration:none;
  white-space:nowrap;
}
.nav-core a.is-current,
.nav-core a:hover{
  background:rgba(247,243,228,.16);
  border-radius:999px;
  color:#FFFFFF;
}
.header-actions{display:flex;align-items:center;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:#F3E2A8;color:#0A3D38;
}
.register-btn{
  background:transparent;color:#F7F3E4;border:1px solid rgba(247,243,228,.55);
}
.mobile-menu-btn{display:none;width:42px;height:42px;border:0;border-radius:12px;background:#F3E2A8;align-items:center;justify-content:center;flex-direction:column;gap:4px;padding:0}
.mobile-menu-btn span{width:18px;height:2px;background:#0A7A6E;border-radius:2px}
.channel-strip{background:#E7F6F3;border-bottom:1px solid rgba(12,143,130,.16)}
.channel-strip-inner{max-width:1200px;margin:0 auto;padding:10px 20px;display:flex;gap:8px;overflow-x:auto;overscroll-behavior-inline:contain;scrollbar-width:thin}
.channel-strip a{flex:0 0 auto;color:#24554F;text-decoration:none;font-size:14px;font-weight:700;padding:5px 8px;border-radius:8px;white-space:nowrap}
.channel-strip a.is-current,.channel-strip a:hover{color:#0C8F82;background:#F3FBFA}
.site-main{max-width:100%;min-height:60vh;padding-bottom:34px}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.reading{max-width:840px;margin:0 auto}
.hero-band{background:linear-gradient(180deg,#0C8F82 0%,#0A7A6E 100%);color:#F7F3E4;padding:60px 0}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(320px,.95fr);gap:38px;align-items:center}
.hero-band h1{margin:0 0 18px;font-size:clamp(36px,4vw,48px);line-height:1.14;color:#fff;letter-spacing:.02em}
.hero-band p{font-size:18px;line-height:1.86;margin:0;max-width:720px;color:#F7F3E4}
.section{padding:58px 0}
.section.compact{padding:42px 0}
.section-title{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:24px}
.section-title h2,.article-head h1{color:#0A3D38;margin:0;line-height:1.25}
.section-title h2{font-size:30px}
.section-title p{margin:0;color:#4E6B66;max-width:620px}
.quick-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:14px}
.quick-item,.info-card,.directory-item,.soft-panel,.faq-item,.step-item{background:#fff;border:1px solid rgba(12,143,130,.16);border-radius:18px;box-shadow:0 14px 30px rgba(10,122,110,.10)}
.quick-item{padding:22px 16px;text-decoration:none;color:#0A3D38;font-weight:800;text-align:center}
.quick-item span{display:block;color:#4E6B66;font-size:13px;font-weight:500;margin-top:4px}
.magazine-grid{display:grid;grid-template-columns:minmax(0,2fr) minmax(280px,1fr);gap:22px}
.feature-card{background:#fff;border:1px solid rgba(12,143,130,.16);border-radius:18px;padding:22px;box-shadow:0 14px 30px rgba(10,122,110,.10)}
.feature-card h2,.feature-card h3,.info-card h2,.info-card h3,.directory-item h3,.soft-panel h2,.soft-panel h3,.article-content h2,.article-content h3{color:#0A3D38;margin-top:0}
.stack{display:grid;gap:14px}
.info-card{padding:20px}
.info-card p,.directory-item p,.soft-panel p{color:#4E6B66;margin-bottom:12px}
.text-link{font-weight:800;text-decoration:none}
.compare-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.compare-grid .feature-card{display:flex;flex-direction:column;gap:16px}
.directory-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.directory-item{padding:20px}
.directory-item h3{margin-bottom:8px}
.service-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
.service-strip a{background:#123833;color:#F7F3E4;text-decoration:none;border-radius:16px;padding:18px;text-align:center;font-weight:800}
.article-hero{padding:52px 0 28px}
.article-head{max-width:860px}
.article-head h1{font-size:clamp(34px,4vw,44px);margin-bottom:14px}
.article-head p{font-size:18px;color:#4E6B66;margin:0}
.article-content{font-size:17px;line-height:1.9}
.article-content h2{font-size:26px;margin:34px 0 12px}
.article-content h3{font-size:20px;margin:26px 0 10px}
.article-content p{margin:0 0 18px}
.article-content ul,.article-content ol{padding-left:1.4em;margin:0 0 22px}
.article-content li{margin-bottom:8px}
.article-layout{display:grid;grid-template-columns:260px minmax(0,1fr);gap:30px;align-items:start}
.side-index{position:sticky;top:112px;background:#fff;border:1px solid rgba(12,143,130,.16);border-radius:18px;padding:20px;box-shadow:0 14px 30px rgba(10,122,110,.08)}
.side-index h2{font-size:18px;margin:0 0 10px;color:#0A3D38}
.side-index a{display:block;padding:7px 0;text-decoration:none;font-weight:700}
.soft-panel{padding:24px}
.note{border-left:4px solid #F3E2A8;background:#F3FBFA;border-radius:0 14px 14px 0;padding:16px 18px;margin:22px 0;color:#24554F}
.step-list{display:grid;gap:14px;counter-reset:step}
.step-item{padding:20px 20px 20px 68px;position:relative}
.step-item:before{counter-increment:step;content:counter(step);position:absolute;left:20px;top:20px;width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:#0C8F82;color:#fff;font-weight:800}
.question-stack{display:grid;gap:16px}.faq-item{padding:22px}.faq-item h2,.faq-item h3{margin:0 0 10px;color:#0A3D38}.faq-item p{margin:0;color:#334C47}
.related-links{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:28px}.related-links a{background:#F3FBFA;border:1px solid rgba(12,143,130,.16);border-radius:14px;padding:16px;text-decoration:none;font-weight:800}
.media{
  position:relative;width:100%;max-width:100%;overflow:hidden;
  border-radius:18px;background:#E7F6F3;
  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,#E7F6F3,#F3FBFA)}
.media.card-media{min-height:156px;max-height:180px}.media.feature-media{min-height:220px;max-height:252px}
.main-btn{
  display:inline-flex;align-items:center;justify-content:center;
  height:42px;min-width:96px;padding:0 20px;
  background:linear-gradient(180deg,#0C8F82 0%,#0A7A6E 100%);
  color:#F7F3E4;border-radius:999px;
  text-decoration:none;font-weight:700;
  box-shadow:0 8px 18px rgba(10,122,110,.28);
}
.site-footer{background:#123833;color:#D5E8E4;padding:48px 0 88px;margin-top:28px}
.footer-grid{max-width:1200px;margin:0 auto;padding:0 20px;display:grid;grid-template-columns:1.3fr repeat(3,1fr);gap:34px}
.site-footer h2{font-size:17px;color:#fff;margin:0 0 12px}.site-footer a{display:block;color:#D5E8E4;text-decoration:none;padding:4px 0}.site-footer a:hover{color:#fff}.footer-brand p{margin:14px 0 0;max-width:360px}.footer-logo{display:inline-flex;align-items:center}.footer-logo img{height:40px;width:auto;max-width:160px;object-fit:contain}.footer-bottom{max-width:1200px;margin:28px auto 0;padding:22px 20px 0;border-top:1px solid rgba(213,232,228,.18);display:flex;justify-content:space-between;gap:20px;font-size:14px}.footer-bottom p{margin:0}
.floating-tools{position:fixed;right:16px;top:50%;transform:translateY(-40%);z-index:8000;display:grid;gap:8px;width:84px}.floating-tools a{display:flex;align-items:center;justify-content:center;min-height:42px;padding:7px;background:#fff;color:#0A7A6E;border:1px solid rgba(12,143,130,.16);border-radius:12px;text-decoration:none;font-size:13px;font-weight:800;text-align:center;box-shadow:0 8px 18px rgba(10,122,110,.10)}.floating-tools .float-reg{background:#0C8F82;color:#F3E2A8}
.mobile-bottom{display:none}
.mobile-drawer,
.drawer-mask{display:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px;border-bottom:1px solid rgba(12,143,130,.16)}.drawer-logo{display:flex;align-items:center;min-width:0}.drawer-logo img{height:38px;width:auto;max-width:150px;object-fit:contain}.drawer-close{width:38px;height:38px;border:0;border-radius:10px;background:#E7F6F3;color:#0A3D38;font-size:26px;line-height:1}.drawer-scroll{height:calc(100vh - 72px);overflow-y:auto;padding:8px 16px 28px}.drawer-group{padding:12px 0;border-bottom:1px solid rgba(12,143,130,.12)}.drawer-group h2{margin:0 0 6px;font-size:14px;color:#4E6B66}.drawer-group a{display:block;padding:8px 0;color:#0A3D38;text-decoration:none;font-weight:700}
@media(max-width:1100px){.nav-core a{padding:7px 8px;font-size:14px}.header-actions{gap:6px}.login-btn,.register-btn{min-width:74px;padding:0 12px}.quick-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.directory-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:980px){
  .channel-strip,.nav-core,.register-btn{display:none}
  .site-header{position:sticky}
  .header-inner{min-height:64px;padding:0 12px;gap:8px;display:grid;grid-template-columns:44px minmax(0,1fr) 88px}
  .mobile-menu-btn{display:flex}
  .site-logo{justify-self:center;min-width:0}.site-logo img{height:38px;max-width:150px}
  .header-actions{justify-self:end}.login-btn{min-width:82px;height:38px;padding:0 12px}
  .floating-tools{display:none}
  .mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:9000;display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border-top:1px solid rgba(12,143,130,.16);box-shadow:0 -8px 22px rgba(10,122,110,.10);padding-bottom:env(safe-area-inset-bottom)}
  .mobile-bottom a{padding:12px 4px;color:#0A3D38;text-decoration:none;text-align:center;font-size:14px;font-weight:800}
  .site-footer{padding-bottom:92px}
  .site-main{padding-bottom:66px}
  .article-layout{grid-template-columns:1fr}.side-index{position:static}
  .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(10,61,56,.18);
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-mask{
  display:none;
  position:fixed;
  inset:0;
  background:rgba(10,61,56,.42);
  z-index:11000;
  opacity:0;
  pointer-events:none;
  transition:opacity .18s ease;
}
.drawer-mask.is-visible{
  display:block;
  opacity:1;
  pointer-events:auto;
}
  body.drawer-open{overflow:hidden}
}
@media(max-width:760px){
  body{font-size:16px}.container{padding:0 16px}.hero-band{padding:38px 0}.hero-grid,.magazine-grid,.compare-grid{grid-template-columns:1fr}.hero-grid{gap:24px}.hero-band h1{font-size:clamp(28px,8vw,34px)}.hero-band p{font-size:16px}.section{padding:40px 0}.section-title{display:block}.section-title h2{font-size:25px;margin-bottom:8px}.quick-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.quick-item{padding:18px 10px}.directory-grid{grid-template-columns:1fr}.service-strip{grid-template-columns:repeat(2,minmax(0,1fr))}.article-hero{padding:36px 0 22px}.article-head h1{font-size:clamp(28px,8vw,34px)}.article-head p{font-size:16px}.article-content{font-size:16px}.article-content h2{font-size:23px}.related-links{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr;gap:26px}.footer-bottom{display:block}.footer-bottom p+p{margin-top:10px}.media.feature-media{min-height:0;max-height:none}.media.card-media{min-height:0;max-height:none}
}
@media(max-width:430px){.header-inner{grid-template-columns:42px minmax(0,1fr) 82px}.site-logo img{max-width:132px;height:34px}.login-btn{min-width:78px;font-size:14px}.mobile-menu-btn{width:40px;height:40px}.quick-item span{font-size:12px}}