*{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%}body.drawer-open{overflow:hidden}.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;flex:0 0 auto;text-decoration:none}.site-logo img{display:block;height:40px;width:auto;max-width:168px;object-fit:contain}.logo-fallback{display:inline-flex;align-items:center;justify-content:center;min-width:128px;height:40px;padding:0 14px;border-radius:12px;background:#fff;color:#1D2B5F;font-weight:900;letter-spacing:.08em}.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;flex:0 0 auto}.header-login{font-weight:800;text-decoration:none;color:#1D2B5F}.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:#FFFFFF;border-radius:999px;text-decoration:none;font-weight:700;box-shadow:0 10px 24px rgba(89,126,247,.28)}.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%)}}.mobile-menu-btn,.mobile-register{display:none}.channel-strip{background:#fff;border-bottom:1px solid rgba(89,126,247,.12)}.channel-inner{max-width:1200px;margin:0 auto;padding:0 20px;display:flex;gap:8px;overflow-x:auto;scrollbar-width:thin}.channel-inner a{flex:0 0 auto;padding:12px 9px;color:#5B647A;text-decoration:none;font-size:14px;font-weight:700;white-space:nowrap}.channel-inner a:hover,.channel-inner a.is-current{color:#597EF7}.mobile-drawer,.drawer-mask{display:none}main{min-height:60vh}.container{width:min(1200px,calc(100% - 40px));margin:0 auto}.page-hero{padding:64px 0 34px}.page-hero-inner{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(300px,.85fr);gap:30px;align-items:center}.page-hero.no-media .page-hero-inner{grid-template-columns:1fr}.eyebrow{display:inline-flex;align-items:center;gap:8px;color:#597EF7;font-size:14px;font-weight:800;letter-spacing:.08em;text-transform:uppercase}.eyebrow::before{content:"";width:24px;height:3px;border-radius:99px;background:#597EF7}.page-hero h1,.home-intro h1{margin:14px 0 16px;color:#1D2B5F;font-size:clamp(38px,5vw,50px);line-height:1.16;letter-spacing:-.03em}.lead{margin:0;color:#5B647A;font-size:18px;line-height:1.85;max-width:820px}.media{position:relative;width:100%;max-width:100%;overflow:hidden;border-radius:16px;background:#ECF0FF;aspect-ratio:16/9;box-shadow:0 16px 40px rgba(89,126,247,.10)}.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;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#ECF0FF,#EAF7FF);color:#7580EE;font-weight:800}.section{padding:56px 0}.section.tight{padding:34px 0}.section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:24px}.section-head h2{margin:0;color:#1D2B5F;font-size:clamp(26px,4vw,36px);line-height:1.25}.section-head p{margin:0;color:#5B647A;max-width:640px;line-height:1.75}.grid{display:grid;gap:20px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.panel{background:#fff;border:1px solid rgba(89,126,247,.16);border-radius:18px;padding:24px;box-shadow:0 16px 40px rgba(89,126,247,.10)}.panel h2,.panel h3{color:#1D2B5F;margin-top:0}.panel h3{font-size:20px}.panel p,.reading p,.panel li,.reading li{font-size:16px;line-height:1.85;color:#333}.panel p:last-child{margin-bottom:0}.text-link{color:#597EF7;font-weight:800;text-decoration:none}.text-link:hover{text-decoration:underline}.reading{max-width:840px;margin:0 auto;background:#fff;border:1px solid rgba(89,126,247,.14);border-radius:18px;padding:32px;box-shadow:0 16px 40px rgba(89,126,247,.08)}.reading h2{margin:30px 0 10px;color:#1D2B5F;font-size:28px}.reading h2:first-child{margin-top:0}.reading h3{color:#1D2B5F;font-size:20px}.reading ul,.reading ol{padding-left:1.3em}.note-bar{background:linear-gradient(135deg,#fff,#EAF7FF);border:1px solid rgba(89,126,247,.16);border-radius:16px;padding:20px 24px;color:#1D2B5F;line-height:1.8}.link-row{display:flex;flex-wrap:wrap;gap:10px}.pill{display:inline-flex;align-items:center;min-height:40px;padding:0 16px;border-radius:999px;background:#fff;border:1px solid rgba(89,126,247,.16);color:#1D2B5F;text-decoration:none;font-weight:800}.pill:hover{color:#597EF7;border-color:#597EF7}.check-list{list-style:none;padding:0;margin:0;display:grid;gap:12px}.check-list li{position:relative;padding-left:28px}.check-list li::before{content:"✓";position:absolute;left:0;top:0;color:#597EF7;font-weight:900}.steps{counter-reset:step;display:grid;gap:16px}.step{counter-increment:step;background:#fff;border:1px solid rgba(89,126,247,.16);border-radius:16px;padding:20px 20px 20px 66px;position:relative}.step::before{content:counter(step);position:absolute;left:18px;top:18px;width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:#ECF0FF;color:#597EF7;font-weight:900}.step h3{margin:0 0 8px;color:#1D2B5F}.step p{margin:0;line-height:1.8}.compare{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.quote-note{border-left:4px solid #597EF7;padding:16px 20px;background:#fff;border-radius:0 14px 14px 0;color:#5B647A;line-height:1.8}.faq-list{display:grid;gap:14px}.faq-item{background:#fff;border:1px solid rgba(89,126,247,.16);border-radius:16px;padding:22px}.faq-item h2,.faq-item h3{margin:0 0 10px;color:#1D2B5F;font-size:20px}.faq-item p{margin:0;line-height:1.85}.topic-card{background:#fff;border:1px solid rgba(89,126,247,.16);border-radius:18px;padding:22px;text-decoration:none;min-height:136px;display:flex;flex-direction:column;justify-content:space-between;box-shadow:0 12px 30px rgba(89,126,247,.07)}.topic-card strong{font-size:19px;color:#1D2B5F}.topic-card span{color:#5B647A;line-height:1.6}.topic-card:hover{transform:translateY(-2px);transition:.2s ease;border-color:#597EF7}.home-wrap{padding:28px 0 0}.hero-slider{position:relative;width:min(1200px,calc(100% - 40px));height:360px;margin:0 auto;background:#101827;border-radius:18px;overflow:hidden}.hero-slide{position:absolute;inset:0;opacity:0;pointer-events:none;transition:opacity .35s ease;display:grid;place-items:center}.hero-slide.is-active{opacity:1;pointer-events:auto}.hero-slide img{width:100%;height:100%;object-fit:contain;object-position:center}.hero-fallback{width:100%;height:100%;display:grid;place-items:center;color:#fff;text-align:center;padding:40px;background:radial-gradient(circle at 30% 20%,rgba(89,126,247,.42),transparent 38%),#101827}.hero-fallback strong{font-size:clamp(28px,5vw,54px)}.slider-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:5;width:42px;height:42px;border:0;border-radius:50%;background:rgba(255,255,255,.92);color:#1D2B5F;font-size:28px;cursor:pointer}.slider-arrow.prev{left:16px}.slider-arrow.next{right:16px}.hero-dots{position:absolute;left:50%;bottom:16px;transform:translateX(-50%);display:flex;gap:8px;z-index:5}.hero-dot{width:10px;height:10px;border:0;border-radius:50%;padding:0;background:rgba(255,255,255,.45);cursor:pointer}.hero-dot.is-active{background:#fff;transform:scale(1.2)}.quick-scroll{display:flex;gap:10px;overflow-x:auto;padding:20px 0 4px;scrollbar-width:thin}.today-bar{margin-top:24px;background:#fff;border:1px solid rgba(89,126,247,.16);border-radius:16px;padding:20px 24px;display:flex;gap:18px;align-items:flex-start}.today-bar strong{flex:0 0 auto;color:#597EF7}.today-bar p{margin:0;color:#5B647A;line-height:1.8}.app-banner{display:grid;grid-template-columns:1.2fr .8fr;gap:28px;align-items:center;background:linear-gradient(135deg,#ECF0FF,#EAF7FF);border:1px solid rgba(89,126,247,.16);border-radius:18px;padding:28px}.app-banner h2{margin-top:0;color:#1D2B5F;font-size:30px}.app-banner p{line-height:1.85;color:#5B647A}.app-banner .media{min-height:220px}.legal-box{background:#fff;border:1px solid rgba(89,126,247,.16);border-radius:18px;padding:26px}.legal-box h2{color:#1D2B5F}.legal-box p{line-height:1.85}.side-float{position:fixed;right:14px;top:34%;z-index:8000;width:112px;display:grid;gap:8px;background:#fff;padding:10px;border-radius:16px;box-shadow:0 16px 40px rgba(89,126,247,.16)}.side-float a,.side-float button{min-height:38px;border:0;border-radius:10px;background:#fff;color:#597EF7;text-decoration:none;font-weight:800;display:flex;align-items:center;justify-content:center;cursor:pointer;font-family:inherit}.side-float .main-btn{min-width:0;color:#fff}.site-footer{background:#1F1F1F;color:#D7DCE8;margin-top:72px}.footer-grid{max-width:1200px;margin:0 auto;padding:52px 20px;display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:30px}.footer-grid h2{font-size:16px;color:#fff;margin:0 0 14px}.footer-grid a{display:block;color:#D7DCE8;text-decoration:none;margin:9px 0}.footer-grid a:hover{color:#fff}.footer-brand p{max-width:360px;line-height:1.8}.footer-logo img{height:40px;width:auto;max-width:168px;object-fit:contain}.footer-fallback{background:#2c2c2c;color:#fff}.footer-bottom{border-top:1px solid rgba(255,255,255,.09);max-width:1200px;margin:0 auto;padding:20px;display:flex;justify-content:space-between;gap:20px;line-height:1.7}.mobile-bottom{display:none}.mobile-drawer,.drawer-mask{display:none}@media(max-width:1120px){.nav-core{gap:3px}.nav-core a{padding:8px 7px;font-size:14px}.side-float{display:none}.page-hero-inner{grid-template-columns:1fr 1fr}.grid-4{grid-template-columns:repeat(3,minmax(0,1fr))}}@media(max-width:980px){.header-inner{min-height:64px;display:grid;grid-template-columns:88px 1fr 108px;padding:0 14px;gap:8px}.nav-core,.header-actions,.channel-strip{display:none}.mobile-menu-btn{display:flex;flex-direction:column;justify-content:center;gap:4px;width:44px;height:44px;border:0;background:transparent;padding:9px;cursor:pointer}.mobile-menu-btn span{height:2px;background:#1D2B5F;border-radius:4px;width:24px}.site-logo{justify-content:center;min-width:0}.site-logo img{height:34px;max-width:150px}.logo-fallback{min-width:0;width:auto;height:34px;padding:0 10px;font-size:14px}.mobile-register{display:inline-flex;justify-self:end;min-width:100px;height:40px;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}.drawer-head{height:66px;padding:0 16px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #ECF0FF}.drawer-logo img{height:34px;width:auto;max-width:150px;object-fit:contain}.drawer-close{width:40px;height:40px;border:0;background:#ECF0FF;border-radius:50%;color:#1D2B5F;font-size:28px;cursor:pointer}.drawer-scroll{height:calc(100vh - 66px);overflow:auto;padding:18px 18px 88px}.drawer-group{margin-bottom:20px}.drawer-group h2{font-size:13px;color:#7580EE;letter-spacing:.1em;margin:0 0 8px}.drawer-group a{display:block;padding:10px 8px;border-radius:10px;text-decoration:none;color:#1D2B5F;font-weight:700}.drawer-group a:hover{background:#F6F8FF}.mobile-bottom{position:fixed;display:grid;grid-template-columns:repeat(4,1fr);left:0;right:0;bottom:0;z-index:9000;background:#fff;border-top:1px solid rgba(89,126,247,.16);padding-bottom:env(safe-area-inset-bottom)}.mobile-bottom a{min-height:56px;display:grid;place-items:center;text-decoration:none;color:#1D2B5F;font-size:13px;font-weight:800}.site-footer{padding-bottom:64px}.page-hero{padding-top:46px}.page-hero-inner{grid-template-columns:1fr}.grid-3,.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}.app-banner{grid-template-columns:1fr}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.hero-slider{height:290px}}@media(max-width:640px){.container,.hero-slider{width:min(100% - 28px,1200px)}.page-hero{padding:40px 0 24px}.page-hero h1,.home-intro h1{font-size:clamp(28px,9vw,34px)}.lead{font-size:16px}.section{padding:42px 0}.section.tight{padding:28px 0}.grid-2,.grid-3,.grid-4,.compare{grid-template-columns:1fr}.topic-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.topic-card{padding:16px;min-height:126px}.panel,.reading{padding:20px}.reading h2{font-size:24px}.section-head{align-items:flex-start;flex-direction:column;margin-bottom:18px}.today-bar{flex-direction:column;gap:8px;padding:18px}.hero-slider{height:210px}.slider-arrow{width:36px;height:36px;font-size:24px}.app-banner{padding:20px}.footer-grid{grid-template-columns:1fr;padding:40px 20px}.footer-bottom{flex-direction:column}.page-hero-inner .media{max-height:260px}.page-hero-inner{gap:20px}.note-bar{padding:18px}.step{padding-left:60px}.mobile-register{min-width:96px}.header-inner{grid-template-columns:70px 1fr 104px}}
/* ===== 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 ===== */