*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#F6F8FF;color:#222;font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;overflow-x:hidden}a{color:inherit}img{max-width:100%}.site-header{position:sticky;top:0;z-index:9999;width:100%;background:linear-gradient(135deg,#F7F9FF 0%,#ECF0FF 52%,#EAF7FF 100%);box-shadow:0 8px 24px rgba(89,126,247,.10);backdrop-filter:blur(12px)}.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;text-decoration:none;flex:0 0 auto}.site-logo img{display:block;height:40px;width:auto;max-width:168px;object-fit:contain}.logo-text{font-size:24px;font-weight:800;color:#1D2B5F;letter-spacing:.04em}.logo-text.light{color:#fff}.nav-core{display:flex;align-items:center;gap:8px;white-space:nowrap;flex-wrap:nowrap}.nav-core a{color:#1D2B5F;padding:8px 10px;border-radius:999px;font-weight:700;text-decoration:none}.nav-core a.is-current,.nav-core a:hover{background:rgba(255,255,255,.82);color:#597EF7}.header-actions{display:flex;align-items:center;gap:10px;white-space:nowrap}.login-link{text-decoration:none;color:#1D2B5F;font-weight:700;padding:9px 12px}.main-btn{position:relative;overflow:hidden;isolation:isolate;display:inline-flex;align-items:center;justify-content:center;height:42px;min-width:96px;padding:0 20px;background:linear-gradient(135deg,#7580EE 0%,#597EF7 48%,#7AC4F5 100%);color:#FFF;border-radius:999px;text-decoration:none;font-weight:700;box-shadow:0 10px 24px rgba(89,126,247,.28);border:0}.main-btn::before{content:"";position:absolute;inset:-2px;border-radius:inherit;background:linear-gradient(120deg,transparent 0%,rgba(255,255,255,.85) 35%,transparent 70%);transform:translateX(-120%);animation:btnShine 2.4s infinite;z-index:-1}.main-btn::after{content:"";position:absolute;inset:-1px;border-radius:inherit;border:1px solid rgba(255,255,255,.65);box-shadow:0 0 8px rgba(122,196,245,.55),0 0 18px rgba(89,126,247,.35);pointer-events:none}@keyframes btnShine{0%{transform:translateX(-120%)}55%{transform:translateX(120%)}100%{transform:translateX(120%)}}.menu-toggle,.mobile-register{display:none}.channel-bar{background:#fff;border-bottom:1px solid rgba(89,126,247,.10)}.channel-scroll{max-width:1200px;margin:0 auto;padding:0 20px;display:flex;overflow-x:auto;scrollbar-width:none}.channel-scroll::-webkit-scrollbar{display:none}.channel-scroll a{flex:0 0 auto;padding:13px 11px;color:#5B647A;text-decoration:none;font-size:14px;white-space:nowrap}.channel-scroll a:hover{color:#597EF7}.site-main{min-height:60vh;padding-bottom:40px}.wrap{max-width:1200px;margin:0 auto;padding:0 20px}.section{padding:64px 0}.section.compact{padding:40px 0}.section-title{margin:0 0 12px;color:#1D2B5F;font-size:32px;line-height:1.2}.section-lead{max-width:760px;margin:0 0 28px;color:#5B647A;font-size:17px;line-height:1.8}.page-hero{padding:64px 0 34px}.page-hero .eyebrow{display:inline-flex;padding:7px 12px;border:1px solid rgba(89,126,247,.16);border-radius:999px;color:#597EF7;background:#fff;font-weight:700;margin-bottom:16px}.page-hero h1{margin:0;color:#1D2B5F;font-size:46px;line-height:1.14;max-width:920px}.page-hero p{max-width:820px;color:#5B647A;font-size:18px;line-height:1.85;margin:18px 0 0}.prose{max-width:860px;margin:0 auto}.prose h2{color:#1D2B5F;font-size:28px;margin:40px 0 14px}.prose h3{color:#1D2B5F;font-size:21px;margin:28px 0 12px}.prose p,.prose li{font-size:17px;line-height:1.88}.prose ul,.prose ol{padding-left:1.5em}.hero-slider{position:relative;background:#101827;border-radius:18px;overflow:hidden;height:360px;box-shadow:0 16px 40px rgba(89,126,247,.10)}.hero-slide{position:absolute;inset:0;opacity:0;transition:opacity .35s ease;display:flex;align-items:center;justify-content:center}.hero-slide.is-active{opacity:1}.hero-slide .media{height:100%;aspect-ratio:auto;border-radius:0;background:#101827}.hero-slide .media>img{object-fit:contain}.hero-controls{position:absolute;inset:auto 18px 16px 18px;display:flex;align-items:center;justify-content:space-between;z-index:3}.hero-arrow{width:42px;height:42px;border-radius:50%;border:1px solid rgba(255,255,255,.35);background:rgba(16,24,39,.72);color:#fff;font-size:22px;cursor:pointer}.hero-dots{display:flex;gap:8px}.hero-dot{width:10px;height:10px;border-radius:50%;border:0;background:rgba(255,255,255,.45);padding:0;cursor:pointer}.hero-dot.is-active{background:#fff;transform:scale(1.2)}.pill-row{display:flex;gap:10px;overflow-x:auto;padding:6px 0 3px;scrollbar-width:none}.pill-row::-webkit-scrollbar{display:none}.pill-row a{flex:0 0 auto;background:#fff;border:1px solid rgba(89,126,247,.16);padding:10px 15px;border-radius:999px;text-decoration:none;color:#1D2B5F;font-weight:700}.pill-row a:hover{color:#597EF7}.observe-strip{background:linear-gradient(135deg,#ECF0FF,#EAF7FF);border:1px solid rgba(89,126,247,.16);border-radius:18px;padding:22px 24px;line-height:1.85;color:#35415f}.grid{display:grid;gap:20px}.grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.grid.four{grid-template-columns:repeat(4,minmax(0,1fr))}.info-card,.topic-card,.link-card,.note-card{background:#fff;border:1px solid rgba(89,126,247,.16);border-radius:18px;box-shadow:0 16px 40px rgba(89,126,247,.10);padding:22px}.info-card h3,.topic-card h3,.link-card h3,.note-card h3{margin:0 0 10px;color:#1D2B5F}.info-card p,.topic-card p,.link-card p,.note-card p{margin:0;color:#5B647A;line-height:1.8}.topic-card{display:flex;flex-direction:column;min-height:188px}.topic-card a,.text-link{margin-top:auto;padding-top:16px;color:#597EF7;text-decoration:none;font-weight:700}.split{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:28px;align-items:center}.split.reverse .media{order:2}.split.reverse .split-copy{order:1}.split-copy h2{font-size:31px;color:#1D2B5F;margin:0 0 14px}.split-copy p,.split-copy li{font-size:17px;line-height:1.85;color:#3b4663}.media{position:relative;width:100%;max-width:100%;overflow:hidden;border-radius:16px;background:#ECF0FF;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,#ECF0FF 0%,#EAF7FF 100%)}.feature-media{min-height:240px}.card-media{height:174px;aspect-ratio:auto}.article-index{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:22px 0}.article-index a{display:block;background:#fff;border:1px solid rgba(89,126,247,.16);padding:15px 18px;border-radius:14px;text-decoration:none;color:#1D2B5F;font-weight:700}.steps{counter-reset:step;display:grid;gap:14px}.step{position:relative;background:#fff;border:1px solid rgba(89,126,247,.16);border-radius:18px;padding:20px 22px 20px 66px;line-height:1.8}.step:before{counter-increment:step;content:counter(step);position:absolute;left:20px;top:18px;width:32px;height:32px;border-radius:50%;display:grid;place-items:center;background:#ECF0FF;color:#597EF7;font-weight:800}.compare{display:grid;grid-template-columns:1fr 1fr;gap:18px}.compare>div{background:#fff;border:1px solid rgba(89,126,247,.16);border-radius:18px;padding:22px}.qa-list{display:grid;gap:14px}.qa-item{background:#fff;border:1px solid rgba(89,126,247,.16);border-radius:18px;padding:20px 22px}.qa-item h3{margin:0 0 8px;color:#1D2B5F;font-size:18px}.qa-item p{margin:0;line-height:1.85;color:#4b5672}.notice{border-left:4px solid #597EF7;background:#fff;padding:20px 22px;border-radius:0 16px 16px 0;line-height:1.85}.app-banner{background:linear-gradient(135deg,#ECF0FF,#EAF7FF);border:1px solid rgba(89,126,247,.16);border-radius:18px;padding:28px;display:flex;align-items:center;justify-content:space-between;gap:20px}.app-banner h2{margin:0 0 8px;color:#1D2B5F}.app-banner p{margin:0;color:#5B647A;line-height:1.7}.app-banner a{color:#597EF7;text-decoration:none;font-weight:700;white-space:nowrap}.site-footer{background:#1F1F1F;color:#D7DCE8;padding:52px 20px 24px}.footer-grid{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:30px}.footer-grid h3{color:#fff;margin:0 0 15px}.footer-grid a{display:block;color:#D7DCE8;text-decoration:none;margin:10px 0}.footer-brand p{line-height:1.8;margin:16px 0 0;max-width:320px}.footer-logo img{height:40px;width:auto;max-width:168px;object-fit:contain}.footer-bottom{max-width:1200px;margin:28px auto 0;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);line-height:1.75;font-size:14px}.floating-tools{position:fixed;right:14px;top:36%;z-index:9000;width:112px;display:grid;gap:8px}.floating-tools a,.floating-tools button{background:#fff;border:1px solid rgba(89,126,247,.16);color:#1D2B5F;border-radius:12px;padding:10px 8px;text-align:center;text-decoration:none;font-weight:700;box-shadow:0 8px 20px rgba(89,126,247,.10);font-family:inherit;cursor:pointer}.floating-tools .main-btn{height:40px;min-width:0;color:#fff;border-radius:999px}.mobile-bottom{display:none}.mobile-drawer,.drawer-mask{display:none}body.drawer-open{overflow:hidden}.menu-toggle{background:transparent;border:0;padding:8px;width:42px;height:42px;align-items:center;justify-content:center;gap:4px;flex-direction:column}.menu-toggle span{display:block;width:21px;height:2px;background:#1D2B5F}.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px 18px;border-bottom:1px solid rgba(89,126,247,.12)}.drawer-logo img{display:block;height:38px;width:auto;max-width:150px;object-fit:contain}.drawer-close{width:40px;height:40px;border:0;background:#ECF0FF;border-radius:50%;font-size:28px;color:#1D2B5F}.drawer-body{padding:10px 18px 30px;overflow:auto;height:calc(100vh - 72px)}.drawer-group{padding:14px 0;border-bottom:1px solid rgba(89,126,247,.10)}.drawer-group strong{display:block;color:#597EF7;margin-bottom:7px}.drawer-group a{display:block;text-decoration:none;color:#1D2B5F;padding:9px 0}.table-like{display:grid;gap:10px}.table-row{display:grid;grid-template-columns:180px 1fr;gap:16px;padding:15px 18px;border:1px solid rgba(89,126,247,.16);background:#fff;border-radius:14px}.table-row strong{color:#1D2B5F}.tag-list{display:flex;flex-wrap:wrap;gap:10px}.tag-list a{padding:9px 13px;border-radius:999px;background:#fff;border:1px solid rgba(89,126,247,.16);text-decoration:none;color:#1D2B5F;font-weight:700}.mini-review{display:grid;gap:12px}.mini-review p{margin:0;background:#fff;border:1px solid rgba(89,126,247,.16);border-radius:14px;padding:15px 18px;line-height:1.8}.reading-path{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.reading-path a{background:#fff;border:1px solid rgba(89,126,247,.16);border-radius:18px;padding:22px;text-decoration:none;color:#1D2B5F;font-weight:800}.reading-path span{display:block;margin-top:8px;color:#5B647A;font-weight:400;line-height:1.7}.service-index{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.service-index a{background:#fff;border:1px solid rgba(89,126,247,.16);border-radius:18px;padding:20px;text-decoration:none;color:#1D2B5F;font-weight:800}.service-index small{display:block;margin-top:7px;color:#5B647A;line-height:1.7;font-weight:400}@media(max-width:1180px){.nav-core{gap:2px}.nav-core a{padding:8px 7px;font-size:14px}.floating-tools{display:none}.site-main{padding-right:0}}@media(max-width:980px){.nav-core,.header-actions,.channel-bar{display:none}.menu-toggle,.mobile-register{display:inline-flex}.header-inner{min-height:64px;padding:0 14px;gap:8px}.site-logo{position:absolute;left:50%;transform:translateX(-50%)}.site-logo img{height:36px;max-width:142px}.mobile-register{height:40px;min-width:auto;padding:0 14px;font-size:14px}.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(29,43,95,.18)}.mobile-drawer.is-open{transform:translateX(0)}.drawer-mask{display:none;position:fixed;inset:0;background:rgba(16,24,39,.42);z-index:11000;opacity:0;pointer-events:none;transition:opacity .18s ease}.drawer-mask.is-visible{display:block;opacity:1;pointer-events:auto}.grid.four{grid-template-columns:repeat(3,minmax(0,1fr))}.grid.three{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr}.service-index{grid-template-columns:1fr 1fr}.page-hero h1{font-size:38px}.hero-slider{height:285px}}@media(max-width:700px){.site-main{padding-bottom:76px}.wrap{padding:0 15px}.section{padding:48px 0}.section.compact{padding:34px 0}.page-hero{padding:42px 0 24px}.page-hero h1{font-size:31px}.page-hero p{font-size:16px;line-height:1.8}.section-title{font-size:27px}.grid.four,.grid.three{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.topic-card,.info-card,.link-card,.note-card{padding:17px}.split,.split.reverse{grid-template-columns:1fr}.split.reverse .media,.split.reverse .split-copy{order:initial}.compare,.article-index,.reading-path{grid-template-columns:1fr}.hero-slider{height:210px;border-radius:16px}.hero-controls{inset:auto 12px 10px 12px}.hero-arrow{width:38px;height:38px}.app-banner{align-items:flex-start;flex-direction:column}.footer-grid{grid-template-columns:1fr}.site-footer{padding-bottom:92px}.mobile-bottom{display:grid;position:fixed;z-index:9500;left:0;right:0;bottom:0;grid-template-columns:repeat(4,1fr);background:#fff;border-top:1px solid rgba(89,126,247,.16);box-shadow:0 -8px 24px rgba(89,126,247,.10)}.mobile-bottom a{text-align:center;text-decoration:none;color:#1D2B5F;font-weight:700;padding:14px 4px}.table-row{grid-template-columns:1fr;gap:6px}.service-index{grid-template-columns:1fr 1fr}.prose p,.prose li{font-size:16px}.feature-media{min-height:0}}@media(max-width:430px){.grid.four,.grid.three{grid-template-columns:repeat(2,minmax(0,1fr))}.mobile-register{padding:0 12px;font-size:13px}.menu-toggle{width:40px}.service-index{grid-template-columns:1fr}.hero-slider{height:190px}}@media(min-width:1181px){.site-main{padding-right:68px}}
/* ===== 2026-09-22 批量修复：注册入口可见性 ===== */
.main-btn,
a.main-btn,
.header-actions .main-btn,
.mobile-register,
.hero-actions .main-btn,
.hero-actions a,
.slider-register,
.carousel-register {
position: relative !important;
display: inline-flex !important;
align-items: center !important;
justify-content: center !important;
min-width: 96px !important;
min-height: 42px !important;
padding: 0 20px !important;
border: 0 !important;
border-radius: 999px !important;
background: linear-gradient(135deg,#7580EE 0%,#597EF7 48%,#7AC4F5 100%) !important;
color: #fff !important;
-webkit-text-fill-color: #fff !important;
font-size: 15px !important;
font-weight: 700 !important;
line-height: 42px !important;
text-indent: 0 !important;
opacity: 1 !important;
visibility: visible !important;
overflow: visible !important;
text-decoration: none !important;
white-space: nowrap !important;
z-index: 20 !important;
box-shadow: 0 10px 24px rgba(89,126,247,.28) !important;
}
.main-btn::before,
.main-btn::after {
pointer-events: none !important;
}
.hero-actions,
.slide-actions,
.slider-actions,
.banner-actions {
display: flex !important;
visibility: visible !important;
opacity: 1 !important;
position: relative !important;
z-index: 30 !important;
gap: 12px !important;
}
.hero-actions a,
.slide-actions a,
.slider-actions a,
.banner-actions a {
font-size: 15px !important;
color: #fff !important;
-webkit-text-fill-color: #fff !important;
}
/* 图片绝不能透明或隐藏 */
.media img,
.hero-slider img,
.slider img,
.carousel img,
.slide img,
.banner img {
display: block !important;
visibility: visible !important;
opacity: 1 !important;
max-width: 100% !important;
object-fit: contain !important;
object-position: center !important;
}
/* 手机菜单关闭时绝不能用透明遮罩盖住按钮 */
.drawer-mask {
pointer-events: none !important;
}
.drawer-mask.is-visible {
pointer-events: auto !important;
}
@media(max-width:980px){
.mobile-register {
display: inline-flex !important;
visibility: visible !important;
opacity: 1 !important;
font-size: 14px !important;
min-width: 82px !important;
padding: 0 14px !important;
}
}
/* ===== 注册入口去重修复 ===== */
/* 电脑端绝对隐藏手机注册按钮 */
.mobile-register{
display:none !important;
}
/* 删除上一轮误加到轮播中的注册入口 */
.slider-register,
.slide-actions .slider-register,
.hero-slider .slider-register,
.hero-carousel .slider-register,
.home-slider .slider-register{
display:none !important;
}
/* 电脑端只显示正常桌面注册 */
.desktop-register{
display:inline-flex !important;
}
/* 手机端：隐藏桌面按钮，只保留顶部一个注册入口 */
@media(max-width:980px){
.desktop-register{
display:none !important;
}
.mobile-register{
display:inline-flex !important;
align-items:center !important;
justify-content:center !important;
}
}
/* ===== FINAL REGISTER FIX ===== */
/* 电脑顶部 */
.header-actions{
display:flex !important;
align-items:center !important;
gap:10px !important;
}
.header-actions .login-link{
display:inline-flex !important;
align-items:center !important;
justify-content:center !important;
color:#1D2B5F !important;
font-weight:700 !important;
text-decoration:none !important;
white-space:nowrap !important;
}
.header-actions .desktop-register{
display:inline-flex !important;
}
/* 手机按钮电脑端绝对隐藏 */
.header-actions .mobile-register{
display:none !important;
}
/* 轮播只保留这一个注册入口 */
.carousel-register{
position:absolute !important;
left:50% !important;
bottom:58px !important;
transform:translateX(-50%) !important;
z-index:50 !important;
display:inline-flex !important;
align-items:center !important;
justify-content:center !important;
width:auto !important;
min-width:112px !important;
height:44px !important;
padding:0 22px !important;
border-radius:999px !important;
background:linear-gradient(135deg,#7580EE 0%,#597EF7 48%,#7AC4F5 100%) !important;
color:#fff !important;
-webkit-text-fill-color:#fff !important;
text-decoration:none !important;
font-weight:800 !important;
font-size:16px !important;
box-shadow:
0 10px 24px rgba(89,126,247,.35),
0 0 20px rgba(122,196,245,.35) !important;
}
/* 旧的错误按钮全部隐藏 */
.slider-register,
.slide-actions .slider-register,
.hero-actions .slider-register{
display:none !important;
}
/* 手机 */
@media(max-width:980px){
.header-actions .login-link,
.header-actions .desktop-register{
display:none !important;
}
.header-actions .mobile-register{
display:inline-flex !important;
align-items:center !important;
justify-content:center !important;
min-width:88px !important;
height:40px !important;
padding:0 13px !important;
}
.carousel-register{
bottom:42px !important;
min-width:96px !important;
height:40px !important;
padding:0 16px !important;
font-size:14px !important;
}
}
/* ===== TOPIC IMAGE CARDS FINAL START ===== */
.topic-grid{
align-items:stretch;
}
.topic-card.topic-card-photo{
padding:0 !important;
overflow:hidden !important;
display:block !important;
min-height:0 !important;
background:#fff !important;
border:1px solid rgba(89,126,247,.16) !important;
border-radius:18px !important;
text-decoration:none !important;
box-shadow:0 12px 30px rgba(89,126,247,.08) !important;
transition:transform .18s ease, box-shadow .18s ease !important;
}
.topic-card.topic-card-photo:hover{
transform:translateY(-3px);
box-shadow:0 18px 36px rgba(89,126,247,.14) !important;
}
.topic-card .topic-thumb{
display:block !important;
position:relative !important;
width:100% !important;
aspect-ratio:16/9 !important;
overflow:hidden !important;
background:#ECF0FF !important;
border-radius:0 !important;
padding:0 !important;
margin:0 !important;
}
.topic-card .topic-thumb img{
display:block !important;
width:100% !important;
height:100% !important;
max-width:100% !important;
object-fit:contain !important;
object-position:center center !important;
opacity:1 !important;
visibility:visible !important;
}
.topic-card .topic-image-missing{
display:block !important;
position:absolute !important;
inset:0 !important;
background:linear-gradient(135deg,#ECF0FF,#EAF7FF) !important;
}
.topic-card .topic-copy{
display:block !important;
padding:17px 18px 20px !important;
background:#fff !important;
}
.topic-card .topic-copy strong{
display:block !important;
margin:0 0 8px !important;
color:#1D2B5F !important;
font-size:19px !important;
line-height:1.4 !important;
}
.topic-card .topic-copy > span{
display:block !important;
color:#5B647A !important;
font-size:14px !important;
line-height:1.7 !important;
}
/* 电脑四列 */
@media(min-width:981px){
.topic-grid{
grid-template-columns:repeat(4,minmax(0,1fr)) !important;
}
}
/* 平板三列 */
@media(max-width:980px) and (min-width:641px){
.topic-grid{
grid-template-columns:repeat(3,minmax(0,1fr)) !important;
}
}
/* 手机两列 */
@media(max-width:640px){
.topic-grid{
grid-template-columns:repeat(2,minmax(0,1fr)) !important;
gap:12px !important;
}
.topic-card .topic-copy{
padding:13px 13px 16px !important;
}
.topic-card .topic-copy strong{
font-size:16px !important;
}
.topic-card .topic-copy > span{
font-size:13px !important;
}
}
/* ===== TOPIC IMAGE CARDS FINAL END ===== */